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HPA Illuminator
State War Academy Caldari State
1
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Posted - 2016.03.10 14:03:37 -
[1] - Quote
What a fun thread!
Some feedback on your difficult images from a researchers pov:
#1: First image shows fibrillar centers. You can tell because the green staining will overlap with the holes in the blue one. It's FC rather than nucleoli, as there are clusters of spots in each nucleoli (FC is a specific pattern of nucleolar staining, with a specific biological function).
The cells that look like they've exploded are actually cells that are undergoing mitosis = one cell becoming two. So what you see is the DNA (blue) all densed up, so the microtubules (red) can help separate the DNA equally into the two daughter cells. Not so common to see this in images, and soooo pretty imo :)
Second image: Difficult one, agree that the nucleoli is the most prominent staining (it's just really important to toggle all colors on/off).
#3: Hehe you're really finding difficult ones! I would say it's nucleoli, but I'm not sure whether it's "just" nucleoli, or whether it's fibrillar center. I don't think it's nuclear bodies because the green seem to overlap with the holes in the blue. It's not speckles because there are too few and not evenly spread out.
Second image: Tricky one! The spots are really dense and oversaturated. It might be some sort of vesicle or cytoplasmic body, but it could also be an artifact. Typical image where there's no obvious right or wrong.
#6: Totally agree with you on both! There might be a cytoplasmic staining together with the plasma membrane (those two can be really difficult to tell apart). Are you getting errors for choosing PM?
#9: Can't say for sure with both the blue and green turned on, but if looks like nucleus rather than nucleoplasm to me.
#10: You're right, it's mitochondria. I can sort of understand why they could be mistaken for vesicles though... but that thread like pattern in a part of the cell really gives it away.
#12: Ooooh, those were some ugly cells. I can tell from just looking at the morphology and size that those belong to one of the first few 1000 cell preps we did (to give some perspective, we've done >150.000 now & we've improved a lot). It's a really difficult one to distinguish, but I think it might be intermediate filaments. It could also be "just" cytoplasm. My reason for thinking of intermediate filaments is that the green is a bit more dense next to the nucleus, and it's kinda like a cotton pad that you've ripped apart (at work we usually go like "uuuh so it's not golgi, cytoplasm or mitochondria... it must be int fil..." - we also think it's one of the more difficult ones!).
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HPA Illuminator
State War Academy Caldari State
6
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Posted - 2016.03.10 14:54:46 -
[2] - Quote
Kali Starchaser wrote:Here is a fun one I would LOVE feedback on, because its confusing the crap out of me if I should checkmark 'Abnormal sample' or not before I submit it. http://puu.sh/nBzMy/25bba5ddad.jpg
Nice one! I wouldn't say it's abnormal. It's a cell to cell variation pattern of plasma membrane. Possibly some cytoplasm too (but likely not) - if the green staining is perfectly uniform and flat all over the cell when you toggle off red and blue I would say it's only PM. |

HPA Illuminator
State War Academy Caldari State
9
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Posted - 2016.03.10 15:07:56 -
[3] - Quote
Kali Starchaser wrote:HPA Illuminator wrote:Kali Starchaser wrote:Here is a fun one I would LOVE feedback on, because its confusing the crap out of me if I should checkmark 'Abnormal sample' or not before I submit it. http://puu.sh/nBzMy/25bba5ddad.jpg Nice one! I wouldn't say it's abnormal. It's a cell to cell variation pattern of plasma membrane. Possibly some cytoplasm too (but likely not) - if the green staining is perfectly uniform and flat all over the cell when you toggle off red and blue I would say it's only PM. http://puu.sh/nBAGg/5e1f54ab69.jpg blue + green http://puu.sh/nBANk/f5a4f5bac8.jpg green only http://puu.sh/nBAKB/c67b6f994b.jpg red + blue I kinda took a bunch of screenshots of it for my oddity folder. :)
Hehe good thinking. Definitely a plasma membrane staining with no cytoplasm (at least none that can be seen with this optical sectioning of the cell). |
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HPA Illuminator
State War Academy Caldari State
10

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Posted - 2016.03.11 06:58:53 -
[4] - Quote
Terminal Insanity wrote:Im pretty sure you selected the correct one... its just gonna take time for people to get good at this, and for the system to weed out the bad ones =p was i was right in selecting the two categories for this one? Previously i was only selecting Nucleus on samples like this because i felt it was the prominent feature, but now as ive went though some of these and getting more comfortable, im thinking this should be both Nucleus and Cytoplasm? http://i.imgur.com/iYVeStn.pngI went with Cytoplasm and not Vesicles because the staining in the red part was more blurry, not really defined dots Im also curious what the difference between an "Abnormal sample" and "cell to cell variation"/"not identifiable" would be
Difficult one. It's really a borderline regarding the cytoplasm. Nucleus, absolutely correct. Cytoplasm... maybe (it's definitely not vesicles, you're correct there). It could just be "background" staining since it's so weak. So, I can understand why it has a 50% ratio :) Personally, I would go for only nucleus, but I have looked at *a lot* of images, so I'd actually say it's better to label everything you think matches.
Abnormal sample: you find a distinct pattern in the cells that doesn't match any of the categories. OR it's a broken image
Cell to cell variation: When you see e.g. a strong nucleus staining in a few cells, but some are really weak. Or some cells stain nucleus and some stain mitochondria (or whatever). When things differ visibly between cells.
Not identifiable: You can't distinguish any pattern, the green is just all over the place in the cell and everything is just the same shade of green. |
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HPA Illuminator
State War Academy Caldari State
10
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Posted - 2016.03.11 07:05:29 -
[5] - Quote
Helios Estraella wrote:Terminal Insanity wrote:
I went with Cytoplasm and not Vesicles because the staining in the red part was more blurry, not really defined dots
Im also curious what the difference between an "Abnormal sample" and "cell to cell variation"/"not identifiable" would be
If you look at all the cytoplasm examples the nuclei are pretty much void of green. In your situation the nucleus is filled with green so I wouldn't categorize this as cytoplasm. But I might as well be wrong.
The examples are only showing 1 location, to make it easier to see what it should look like. However, most images (>60%) will have at least dual (some triple) locations, and nucleus/nucleoplasm + cytoplasm is the most common one by far.
In this one I wouldn't click cytoplasm though, but that's based on that it's so weak, that I don't believe it's a specific staining (but it's borderline, so as a gamer, I think you probably should :)) |
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HPA Illuminator
State War Academy Caldari State
10

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Posted - 2016.03.11 07:07:25 -
[6] - Quote
Nevyn Auscent wrote:http://i.imgur.com/tkkrx53.png Try and work that one out for a laugh.
LOL! It's either imaged on top of the cell (= wrong focus), or it's a dying cell. If everything looked like that, it's clearly an "unidentifiable". |
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HPA Illuminator
State War Academy Caldari State
10

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Posted - 2016.03.11 07:12:13 -
[7] - Quote
Van Dracon wrote:The new feature has caused many inconsistent results. Especialy with basic findings where you are 100% accurate but get a failed result. This has baffled me if I should continue wasting my time in project failure.
For starters the pictures should be increased in size instead of looking through a key hole.
Can we get 3d images if possible.
Why did I fail with one of the results. Please give back users more explanatory information to educate them more on failed results instead of guessing.
I like to help like many others though I believe the new feature needs to be expanded with more features. At this stage until I see improvement I won't be committed to it as I once thought.
I think (not sure) that there's a forum thread that's better for giving feedback regarding the UX/UI. I'll ask ppl to have a look in this forum too though.
3D images is not possible atm as we've so far only acquired 2D images. The reason is that taking 3D just takes too much time (atm 1 image takes around 3s by the microscope, just the actual acquisition, if it were to be 3D it would be a minute or so... that times 150k samples = no doable, unfortunately. It would be awesome to have though!). |
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HPA Illuminator
State War Academy Caldari State
10
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Posted - 2016.03.11 07:12:41 -
[8] - Quote
Annemariela Antonela wrote:
Woop woop! |

HPA Illuminator
State War Academy Caldari State
14
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Posted - 2016.03.11 10:28:11 -
[9] - Quote
Van Dracon wrote:HPA Illuminator wrote:Van Dracon wrote:The new feature has caused many inconsistent results. Especialy with basic findings where you are 100% accurate but get a failed result. This has baffled me if I should continue wasting my time in project failure.
For starters the pictures should be increased in size instead of looking through a key hole.
Can we get 3d images if possible.
Why did I fail with one of the results. Please give back users more explanatory information to educate them more on failed results instead of guessing.
I like to help like many others though I believe the new feature needs to be expanded with more features. At this stage until I see improvement I won't be committed to it as I once thought. I think (not sure) that there's a forum thread that's better for giving feedback regarding the UX/UI. I'll ask ppl to have a look in this forum too though. 3D images is not possible atm as we've so far only acquired 2D images. The reason is that taking 3D just takes too much time (atm 1 image takes around 3s by the microscope, just the actual acquisition, if it were to be 3D it would be a minute or so... that times 150k samples = no doable, unfortunately. It would be awesome to have though!). Hey thanks for the reply, Just to tell you something about 3D it would be awesome. Let me explain my views on 2D and 3D. Now for e.g. we have all these green dots supposedly only in the blue area. Ok with 2D you assume there all inside when you look at the photo. But with 3D it can uncover more detail for e.g. at times 3D shots can tell you if all those green dots are floating above the blue area or if they are literally sitting in the blue area. This could be one major factor eliminating errors and being more accurate right ? Even though it takes 1 minute wouldn't it be more important to be more accurate ?, I would importantly like to be more accurate rather than not especially with this application. I dont want to sound like a smart ass but accuracy is prime. Maybe your software does it already but reports back in 2D i'm not sure maybe. Or is there other applications that can speed up the time for processing images quicker ?. I think over the long run you would have more accurate results if 3D is the latest technology we use today. E.g. the new 3D laser printers. Anyways thats just my own thoughts.
Thanks for elaborating, it's interesting to hear what ppl think! I agree that accuracy is really important. NB that each images is of a focal plane/narrow slice of the cell, so for something to be seen from "outside" of the slice, it has to be a reaaaally strong staining, or the image is acquired at the interface between nucleus/cytoplasm.
What we do now is rather than acquiring 3D images, if something can't be visualized perfectly in one image, we will take several images of the same cells, but at different focal planes. That way we can vizualise e.g. focal adhesions in one image, and in the next we will show e.g. nuclear speckles. But yes, it would be ideal to have high-res 3D images to scroll through.
If you see spots in the blue area, and when toggling on/off the red, you see a nice outline of the cell w/o any red in the blue parts - then you know that the image you look at have been acuired "in the middle" of the cell. Thus, the spots in the blue should be there, rather then floating below/on top. Also, the look of the spots can usually tell whether they are in focus or not. If they are big (subjective, I know) and somewhat blurry, they aren't in focus, and you should be hesitant. If more distinct, they are in the same focal plane as the nuclei, and you can trust them.
Technical comment:
No, we acquire 2D images (Leica SP5 confocal microscopes). We have the possibility of acquiring 3D images in the form of stacks, i.e. that the mic first images a slice at the bottom and then works its way up to the top of the cell, slice by slice (the number of slices can be set manually). The reason for using this kind of microscopy is that it gives high-resolution images, and we can look at a certain focal plane at the time (compared to a microscope that images the whole cell at the time, but at much worse resolution). High-res images are really necessary to see substructures such as e.g. the centrosome or fibrillar center. Each focal plane (slice) is very narrow, so (as I mentioned above) for something to be seen from below/above, the signal from it either has to be really strong, or the slice has to be in close proximity to e.g. the interface between the nucleus and cytoplasm.
The reason that it's so time consuming to do image acquisition is that the microscope scans with 1 laser over the sample, then the 2nd laser and finally the 3rd (exciting the fluorophores in the sample at different wavelengths. We have to excite separately to avoid bleedthrough between different channels, eg that staining in the blue is seen in green etc).
Also, the resolution in z will not be as good as the one in xy 2D (general thing due to some laws of physics/how light move through different media or smt that I would have to refresh my memories on before commenting on), which means that even if we do 3D images, they won't be perfect.
Sorry for nerding out on microscopes :) |

HPA Illuminator
State War Academy Caldari State
16
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Posted - 2016.03.11 13:00:26 -
[10] - Quote
Van Dracon wrote: I really enjoyed reading your reply. Didn't realize how many different cameras there are and how much light can or can't get through. I understand about the slice, i guess that is very accurate in some way. Well speaking on behalf of me and probably many others i think it's going to take some time to get use to. I don't come from a scientist background. Worked in I.T. for some years and was just looking at it from an application point of view.
I spent many years in software automation. Would be nice to have recognition filters so instead of you selecting what images come close to the examined photo you could possibly setup filter options for it instead. E.g. if you see more than 5 green dots in the blue area have that selected instead of you selecting it on the right hand side of the pane. I guess since the photos are static we can't setup such filters cause a photo is a photo.
Because you work with colors is there a way we can calculate how much red/ green, blue light is in the photo. Why am i asking this ?. Again having filters setup based on light ratios based on %. So if there 60% green light in the photo which is it likely to be or be as close the 3 category on the right side of the pane.
Again why am i talking about colors, there are so many results not sure for e.g. 5 or less green dots in blue area have same green light frequency light as the others that full in the same basket. Or is most of this color thing I am talking about irrelevant.
Just my thoughts.
Once again thanks for sharing
I'll actually ask my colleague HPA_Dichroic to give some input on this, as he's working with image analysis and could comment so much better.
Thanks for discussing & coming with ideas, love the interest from everyone! |

HPA Illuminator
State War Academy Caldari State
17
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Posted - 2016.03.11 18:50:41 -
[11] - Quote
Helios Anduath wrote:A quick question on the cell-to-cell variation option, how much does it play into the weighting of your accuracy change if you tick cell-to-cell variation but others haven't, or if you don't tick it and others have? Is it treated just like the other answers?
The reason I am asking is that a lot of the time, this box doesn't seem to be being ticked by the majority for some obvious variation so the consensus has it at 0. I guess this is also even more subjective than the other classifications as it comes down to how much variation justifies ticking the option.
Good question and I don't know. Have forwarded it so hopefully someone more knowledgeable will answer soon! |

HPA Illuminator
State War Academy Caldari State
17
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Posted - 2016.03.11 19:02:38 -
[12] - Quote
Beta Maoye wrote:I think the classification of this image is wrong. It is not Nucleus. It should be Mitochondria.
Absolutely correct. I will fwd it. |

HPA Illuminator
State War Academy Caldari State
23
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Posted - 2016.03.12 05:55:16 -
[13] - Quote
Circumstantial Evidence wrote:Sample #100054449 Blue - Green - G+BI feel like a rebel... or a pioneer. Cytoplasm (80%), sure... but can everyone miss small spots "overlapping with holes in the blue marker"? I had trouble tagging with "nucleus" (80%) because staining intensity seems at the same level both in and outside the nucleus. I regret not tagging "nuclear membrane" - its kind of faint, didn't notice until now.
Agree that the fibrillar center are clearly visible (not sure why so many would go for nucleoplasm here?).
I'm not sure that it's a nuclear staining or just the nuclear membrane... But I'm leaning towards both being correct.
On side note: I'm in the phone so just opened the first picture and was zooming and looking really close to the screen, being like... What green staining is he talking about... Is there such a difference looking at a cell phone screen compared to the computer one? Hehe my excuse being it's 6.50 am and I just woke up.  |
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HPA Illuminator
State War Academy Caldari State
25

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Posted - 2016.03.12 21:33:39 -
[14] - Quote
Beta Maoye wrote:In this classification result, I realized I was wrong about Cytoplasm for so many cases.
Not sure what you mean? Have added it to our list of possible errors, will double check whether it should have the cell-to-cell variation as a class. Will get back! |
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HPA Illuminator
State War Academy Caldari State
25
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Posted - 2016.03.12 21:34:04 -
[15] - Quote
Galaxxis wrote:I need to get an image hosting thing, I've had some really interesting ones. One looked like a nucleus popped and all the goo came out! It was glowing bright green and there was a black spot where the nucleus should have been.
Would love to see that one! :) |
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HPA Illuminator
State War Academy Caldari State
25

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Posted - 2016.03.13 07:28:33 -
[16] - Quote
Gilbaron wrote:https://i.gyazo.com/54efcad7e2f4666f6ad66988a2e17ceb.png
Was this a question? I would say it's either cell junctions of plasma membrane. I would lean towards plasma membrane because in the upper left and lower right parts you can see some staining outside the cells. Possibly both CJ+PM is correct, that's also an option :) |
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HPA Illuminator
State War Academy Caldari State
25
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Posted - 2016.03.13 07:32:01 -
[17] - Quote
Nick Kanjus wrote:I'm a bit confused about this one. I might be totally wrong but when I read the description of cytoplasm it says: Seen throughout all the whole cell, except in the nucleus (blue marker). The intensity can vary throughout the cell, and is often stronger close to the nucleus. in other words: all the red might be green but the blue is blue without a spec of green in it. Now I got image 100096917 (as in the screenshot here: http://i.imgur.com/cVv5kwc.png ). Basically its green all over so I figured the sample was useless. But to my surprise 50% match was on cytoplasm. Am I misunderstanding cytoplasm and reject my samples to soon. Or did 50% of the people not read the first line of the description? EDIT: same on 100021233: http://i.imgur.com/wRnL8Sq.png that one is even fully conflicting with both Nucleus and Cytoplasm
Multiple choices are ok. And you should really try toggling all colors on/off and look at green only, green+red, green+blue.
This is probably helpful: https://www.youtube.com/watch?v=PW5Yl6MjZjk&feature=youtu.be |

HPA Illuminator
State War Academy Caldari State
25
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Posted - 2016.03.13 07:37:03 -
[18] - Quote
There are some cases like that, and if the nucleoli is prominent, i'd go for nucleus + nucleoli.
In this case, I don't think the overlap is good, it looks like nucleoplasm+speckles to me (just like you've chosen). |

HPA Illuminator
State War Academy Caldari State
25
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Posted - 2016.03.13 16:04:32 -
[19] - Quote
lol pacman hungry |
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HPA Illuminator
State War Academy Caldari State
26

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Posted - 2016.03.14 22:05:02 -
[20] - Quote
Helios Anduath wrote:They don't really look like Centrosome because they are not two very well defined spots side by side. I would just have gone MTOC for this.
Based on zoom 2 I'd go for centrsosome and think the others cells were slightly out of focus. |
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HPA Illuminator
State War Academy Caldari State
26
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Posted - 2016.03.14 22:05:40 -
[21] - Quote
March rabbit wrote:I've heard that some images was analyzed by professionals? screenshot
Thanks for noticing, will double check it and correct if necessary. |
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HPA Illuminator
State War Academy Caldari State
26

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Posted - 2016.03.15 07:07:20 -
[22] - Quote
Memphis Baas wrote:I had that one just now; the splash of green overlaps the nucleus on every cell, so it can't really be anything outside the nucleus. I put Nuclear Membrane, Abnormal sample. A Google images for "abnormal nuclear membrane stain" shows a couple examples where the membrane could fold in on itself or maybe shrink, to look slightly like that.
<3
Something happened to cells during prepp, so what you see is not something that is actually specific. I don't think it't the nuclear membrane but rather the plasma membrane that has shrunk (the nucleus still intact).
Have added to checkup list. |
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HPA Illuminator
State War Academy Caldari State
26
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Posted - 2016.03.15 07:08:39 -
[23] - Quote
Galaxxis wrote:http://i.imgur.com/DGmPo87.pngI get these sometimes, but usually there's no dye anywhere except for a single bundle of microtubule ends somewhere. This one has green goo all over the place.
I'd say the green mostly is specific, and I'll be curious to see the results of it (I think some cells have been washed away during sample prep). |
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HPA Illuminator
State War Academy Caldari State
27

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Posted - 2016.03.16 20:18:03 -
[24] - Quote
PAPULA wrote:Ok so, this game is totally wrong. look at this sample: http://www.netsky.org/eve/notcor2.png
As you can see it's wrong, but it's not. I chose Nucleoplasm because it is Nucleoplasm, but game says no it is not.  And the "correct answer" was: Nuclear speckles 
It's a known error. Really sorry for it, we're working on fixing the samples that incorrect and hope to have fixed it by this week. *crossing fingers* Will let ppl know when done. |
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HPA Illuminator
State War Academy Caldari State
27
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Posted - 2016.03.16 20:19:15 -
[25] - Quote
Galaxxis wrote:Katsu Kho wrote:I found this one to be a little weird... That's a great example of endoplasmic reticulum. See how it looks like a really thick spider web?
What ^ said.
Also, there's a really nice staining of the nuclear membrane, which should also be seen for ER (they are connected). NB that only should be annotated ER. |

HPA Illuminator
State War Academy Caldari State
27
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Posted - 2016.03.16 20:34:07 -
[26] - Quote
Will check it! |

HPA Illuminator
State War Academy Caldari State
27
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Posted - 2016.03.17 05:14:42 -
[27] - Quote
They are dividing cells (mitosis). What you see is DNA (blue) that has been duplicated and condensed and is now being pulled apart by the red.
The cells with cytokinetic bridges (nicely labeled :)) have just undergone mitosis and are about to/have just been disconnected there.
As for why more are appearing... Either we've in general become much better at looking for such cells over the years. I also think it matters how long the cells are allowed to grow before we stain them. 7 years ago, they only got to grow for 2-4h but now we keep them for 24h most of the time. In general cells duplicate around every 24-36h in vitro so it's far more likely to catch them in mitosis now. And they probably also feel better, getting a longer time to adhere to the slide,which increases chances of mitosis.
As for why you get so many in a row... Random!
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HPA Illuminator
State War Academy Caldari State
27
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Posted - 2016.03.18 08:23:35 -
[28] - Quote
Perfect cell junctions! Don't think it's vesicles (was that a question?) as really random pattern all over cyto/nucleus, so doesn't seem specific.
If you start a new thread, please let me know so we can keep track of what you think is difficult & improve (and give relevant feedback). |
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HPA Illuminator
State War Academy Caldari State
28

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Posted - 2016.04.01 10:36:47 -
[29] - Quote
Rakin o'Dubois wrote:I got the exact same image and totally agree with your classification. I did the same. I wonder how much screwed the baseline is due to the community consensus approach. Is there anything known on how they avoid those effects? Cheers Rakin
Sorry about that, it's a known error that we will correct asap. |
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HPA Illuminator
State War Academy Caldari State
28

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Posted - 2016.04.01 10:38:26 -
[30] - Quote
Lovely sample! We don't have ciliated cells (unfortunately), so what you see here are membrane protrusions (which is really unusual to find, most cell membrane stainings don't have them). |
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HPA Illuminator
State War Academy Caldari State
28
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Posted - 2016.04.01 10:39:56 -
[31] - Quote
Azuriel wrote:Project Discovery, Please confirm that I was wrong on this classification. I put cytoskeleton (cytokinetic bridge) because to the top right of the bottom-most cell I clearly see one. Let me know if my eyes are playing tricks. http://uploadpie.com/HmEUW
Thanks
Memphis was spot on with the explanation! (also the image link expired, you might wanna consider using imgur or puush instead? I had a look at it a few days ago though) |
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HPA Illuminator
State War Academy Caldari State
28

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Posted - 2016.04.01 10:47:02 -
[32] - Quote
Hm, do I understand it right that the classification was supposed to be nucleoplasm+ER? That's odd, because it should only be ER. I've submitted it to have the nuc removed (and add variations).
It should only be ER as the weak nuclear staining that can be seen is due to background bleedthrough from ER below the nucleus. The green in the nucleus is way to weak to be a true nuclear staining. |
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HPA Illuminator
State War Academy Caldari State
28

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Posted - 2016.04.01 10:48:46 -
[33] - Quote
Yllej Gniht wrote:Image no. 100000325Classification Result says: "Nuclear Speckles"; it sure looks like "Nucleoplasm" to me. What's the deal here? Is this faint variation enough to declassify it as "nucleoplasm" and flag it as "nuclear speckles"? If so, some explaining text would be appreciated with those very hard to understand "teaching moments". Thank you! :)
This is also one of the known errors, it should indeed be nucleoplasm and nuclear speckles (at first we thought they were mutually exclusive, which is why this one happened). It will be corrected asap. |
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HPA Illuminator
State War Academy Caldari State
28

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Posted - 2016.04.01 10:51:09 -
[34] - Quote
Nucleoplasm for sure, and probably cytoplasm too. Or what part do you think was confusing? |
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HPA Illuminator
State War Academy Caldari State
28
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Posted - 2016.04.01 10:54:05 -
[35] - Quote
Joe Thelere wrote:I had an image analysed by a professional today: http://imgur.com/8cy3D7m
How much difference in intensity is needed to be correct with Cell-to-Cell-Variations? Or was the professional wrong?
I would be hesitant to call that variation as all strongly stained cells are in the bottom left part of the image. That makes me think it's possible (likely) that the plate was not perfectly adjusted when imaging, and that the cells were imaged at different focal planes, e.g. the stronger green ones were imaged more in the middle of the nucleus, making the staining appear stronger, and the weaker ones at higher up/lower > making the staining appear less strong.
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HPA Illuminator
State War Academy Caldari State
28

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Posted - 2016.04.01 10:58:50 -
[36] - Quote
Circumstantial Evidence wrote:Sample 100000440 has been defined as 100% Vesicles, and I regret not making this choice, in addition to Rods and Rings. I picked R&R because I saw a few rod-like structures... am I completely wrong, or could this sample contain both R&R and Vesicles? Must complete ring structures be present, in samples with R&R? I've marked the BG views with arrows. Area 1 BG -- RGB || Area 2 BG -- RGBSample 100000264 has been defined as 100% Cytoplasm, but I wonder what the structures that seem to outline some parts of the cells might be, marked with arrows in my Green-only screenshot. I thought they might represent a plasma membrane. 100000264 Green -- 100000264 RGB
The first image was a really tricky sample, and I agree it kinda looks like R&R, but not really. Some type of vesicles have this elongated pattern that you can see here. We'll try to remove it from the training set.
For the second image, I see what you mean, but I don't think it's plasma membrane. The cells you look at is a type of brain cell (called U-251 MG), which is known for having what (at least we call) "membrane blebbing", which is that kind of thick edge at the membrane. If you toggle red/green on off you'd likely see a good overlap of the red/green, although the red might be weaker there. |
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HPA Illuminator
State War Academy Caldari State
28
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Posted - 2016.04.01 11:02:40 -
[37] - Quote
Selphentine wrote:http://i.imgur.com/1jGFchx.jpg
Im by far noone that claims professionals are wrong, and i understand a lot of me seeing not the right things in PD, but im very, very sure that nucleoli shouldnt be wrong here.
Thanks for noticing, will be fixed! |

HPA Illuminator
State War Academy Caldari State
28
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Posted - 2016.04.01 11:53:56 -
[38] - Quote
Joe Thelere wrote:HPA Illuminator wrote:Joe Thelere wrote:I had an image analysed by a professional today: http://imgur.com/8cy3D7m
How much difference in intensity is needed to be correct with Cell-to-Cell-Variations? Or was the professional wrong? I would be hesitant to call that variation as all strongly stained cells are in the bottom left part of the image. That makes me think it's possible (likely) that the plate was not perfectly adjusted when imaging, and that the cells were imaged at different focal planes, e.g. the stronger green ones were imaged more in the middle of the nucleus, making the staining appear stronger, and the weaker ones at higher up/lower > making the staining appear less strong. Thanks for the explanation. But for me it raises a problem: How can I decide if the visible varaitions in the staining are a result of the technical imaging-process or the staining itself?
If you see a certain variation pattern only in part of the image, I wouldn't trust it. But, for the image you posted, if there had been a strong nucleus in eg upper right corner, it would be much more trustworthy. You can also turn on the red to see whether it looks similar for all cells - are the cells looking ok, or do some have granular red pattern, or look weird in some way? (>> don't trust them). By using the red channel you can also more easily tell whether the focal plane for the different cells seems to be similar.
For other variation patterns, eg if you have nucleus + nucleoli in lower left part of the image, but only nucleus for the rest, I would classify it as variations (as long as it's more than 1 cell - "1 cell is no cell") as it could be that very few cells show that variation, or that the difference in focal plane makes the nucleoli not visible in part ot the image.
Does it make more sense? |
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HPA Illuminator
The Human Protein Atlas
29

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Posted - 2016.04.12 14:51:18 -
[39] - Quote
Thanks for reporting, will look into it! |
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HPA Illuminator
The Human Protein Atlas
29
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Posted - 2016.04.12 14:53:54 -
[40] - Quote
Elyia Suze Nagala wrote:I have no idea how some people are selecting a few of their answers in PD. It's annoying because I'll select features that are very clearly present, but no one else selected that feature type and I then get dinged a few pecent. I'm like WTH?
I still like the idea of PD but it's annoying my ratings are affected because others aren't thorough.
Consensus no longer affects accuracy rating in PD, it's only based on your coherence of control samples (of which a few, unfortunately, are incorrect atm).
If you come across control images that you disagree with, an imgur album collection is highly appreciated by us at HPA.
If you disagree with other peoples choices, the ingame chat is great for discussion about samples ("Project Discovery").
o/ |
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HPA Illuminator
The Human Protein Atlas
29

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Posted - 2016.04.29 13:32:13 -
[41] - Quote
Raven Dallacort wrote:Could we take a look at this control sample as well please. http://imgur.com/vqg6EmT
I believe both should be the correct answer.
There's an ongoing discussion in the group how to deal with nuclear speckles vs. nucleoplasm. We're leaning towards that when nuclear speckles are this dominant, one should not choose nucleus/nucleoplasm as well. |
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HPA Illuminator
The Human Protein Atlas
29
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Posted - 2016.04.29 13:35:49 -
[42] - Quote
Ristari wrote:http://imgur.com/bLeQJPR Cell division in metaphase/anaphase with the centrosomes lighting up. Thought this was a kind of cool find! Would also like to take a moment to ask about the considerations you take when looking at nuclear staining, and this image happens to also contain what I've been thinking about for a while. In this image, you can clearly see that there's a difference in attenuation where the nucleoli are. It's very clear cut, and the attenuation difference matches the "holes" in the blue filter nucleus perfectly. The cytoplasm is however lighting up fairly well in this image too, and because of this, the nucleoli would appear to stain as well, since you have cytoplasm surrounding the nucleus. For this sample a lot of people went for nucleus. Nobody went for nucleoplasm. I'm thinking it's because the aforementioned "depth issues" causes confusion. Or am I getting this wrong? Here's an image of the green filter: http://imgur.com/JnfSGYL While feeling pretty confident about the nucleoplasm staining, I was also thinking maybe there's no nuclear staining at all, like, maybe the difference in attenuation is due to the membrane lighting up? Or if I spot these nucleoli having a different attenuation compared to the surroundings, can I always be sure that the nucleoplasm is stained? Sorry for the wall of text. Appreciate any input.
It's a bit late in the day, so I'm likely missing some aspects of your comment. But, if it was a nuclear staining, I'd absolutely say it was nucleoplasm and not nucleus. However, I'm not convinced it's really a nuclear staining, as it's just one cell with clear holes for nucleoli, which leads me to believe that it's likely a bleedthrough from the nuclear membrane (and some "background" staining). |
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HPA Illuminator
The Human Protein Atlas
30

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Posted - 2016.05.02 11:25:43 -
[43] - Quote
Taira Arois wrote:It seems that control sample 100455950 has been mislabled. The correct answer was Nuclear bodies (few) but there are more than 5 spots in every cell. This probably needs to be changed to Nuclear bodies (many).
Please report in to this reddit thread, where we try collect everything:
https://www.reddit.com/r/Eve/comments/4gtoyg/project_discovery_collecting_incorrect_control/ |
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HPA Illuminator
The Human Protein Atlas
30
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Posted - 2016.05.02 11:30:29 -
[44] - Quote
Galaxxis wrote:Taira Arois wrote:It seems that control sample 100455950 has been mislabled. The correct answer was Nuclear bodies (few) but there are more than 5 spots in every cell. This probably needs to be changed to Nuclear bodies (many). That's a problem with a lot of these. I've seen plenty of slides with one or two nuclear bodies in some and a bunch in others. Even if you select cell-to-cell variations you can only pick one of them, so which do you go with? Most of these have the community split down the middle as well. Is there a good reason to separate these? Couldn't this just be one button for "nuclear bodies"?
Nuclear bodies is one category where you're really helping us, as we've only said "nuclear bodies" internally, and it's a quite recent category, so we've probably missed out on a lot of samples! Getting out information on many/few is super useful for us! So if there are samples where ppl vote 50/50 it will be interesting for us to look at those (nuclear bodies might eg. correspond to DNA damage site, binding to certain DNA regions etc, so it's not surprising that they may differ between cells).
As for which category to go for... I'd go for the dominant one (most cells). If it's really 50/50, I'd chose many, as the NB are really small, so the reason for just seeing a few in some cells might be due to focus being slightly off (but if you go for few, it's not a problem!).
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HPA Illuminator
The Human Protein Atlas
32
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Posted - 2016.05.05 18:41:13 -
[45] - Quote
Kolmogorow wrote:This image had quite a low consensus and I was very unsure how to classify it as well. First thought was: Mitochondria, but it doesn't look very "thread-like", at least I had seen images that looked quite more clearly like Mitochondria. For ER which was another possible choice it didn't look enough to me like a "spider web". Decided just for cytoplasm at the end but I'm not convinced at all. Hmmmm, what is it actually?
It's kinda hard to tell with all colors (do you have green only?) but Im thinking mitochondria. |

HPA Illuminator
The Human Protein Atlas
32
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Posted - 2016.05.25 20:03:15 -
[46] - Quote
What you see here is actually a certain type of vesicles called peroxisomes, so the control is right.
If you find control images that you think are incorrect, it would be great if you could make a post in this reddit thread.
o7 |

HPA Illuminator
The Human Protein Atlas
32
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Posted - 2016.05.25 20:12:56 -
[47] - Quote
Shiverwarpz wrote:I've had a couple tough classifications in a row now. This one http://i.imgur.com/xElpvSz.png (100457139) in particular had me questioning myself. I've always had trouble with cytoskeleton intermediate filaments VS Endoplasmic reticulum, but never the cytoskeleton microtubules. What exactly makes this one microtubules over the filaments? (The cytokinetic bridge is pretty obvious here) And while I'm on the subject, the classification I had a few slides before, had me questioning between cell junctions and focal adhesions. How can I more clearly make that distinction? If that classification is correct, then sometimes cell junctions can appear even when not next to another cell (Just black space on the slide)
Sorry for the late reply, didn't see this until now!
If you would toggle the green/red on/off you would see that there is a perfect overlap of individual strands which would lead one to the conclusion of microtubules.
Cell junctions should only appear where two cells are touching each other, not when there's black next to the cells. Focals would normally appear somewhat under the cell, not just at/outside the edge of it (and they can appear regardless whether the cell has neighbors or not).
The reddit subthread https://www.reddit.com/r/ProjectDiscovery/ is a great place for asking questions. Also, our PD classes (first at youtube and second/third at twitch (until 20160606) might be helpful!).
EDIT: LOL, didn't see the name first. Guessing you can probably ignore most of this after our posts on reddit :) |

HPA Illuminator
H P A C C P Alliance
33
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Posted - 2016.05.31 07:49:39 -
[48] - Quote
Joia Crenca wrote:I'll bring this over from the other thread in the Information Center Joia Crenca wrote:I noticed that some of the Classification Samples are a bit questionable, still. I guess someone is noticing when one comes up with a large 'incorrect' percentage as pertains to players trying to identify it? Also, when do I get my certificate of cell sample mastery from the University of Reykjavik?  I guess I need to go check Reddit myself. Is CCP finished with any further work on the mini-game? The reason I ask is I'm wondering if more helpful information could be a part of the module itself? Thanks folks!
We're really dependent on your input for finding questionable control images, so please report them at the reddit thread I mentioned a few posts ago.
Hehe, certficates do sound like a nice idea (although guess it might be us at KTH (Royal Institute of Technology) here in Stockholm that are responsible for the science part).
I don't know if they are finished, but feedback is always appreciated. There are some PD threads here at the EVE forum where people have been commenting on it earlier, but I think they've been quiet for a month or so now at least. |

HPA Illuminator
H P A C C P Alliance
33
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Posted - 2016.06.03 09:27:09 -
[49] - Quote
Ashlar Maidstone wrote:Hi, I just started today Project Discovery and so far made it to rank 4! My question is how long will this be available because this is something I been wanting to do since it was introduced earlier this year. And will there be more projects like this? Thank you 
Yay, welcome to PD! (in case you haven't come across them there's a PD subreddit, an awesome ingame chat channel (search for Project Discovery) - great for asking questions about difficult images, and also a slack channel)
CCP has said that PD will be around as long as it's popular, so hopefully that means for a long time :)
As for more projects like this, I don't know. That's up to CCP.
Hope you'll enjoy it (and let us know if you have questions :)) o/ |

HPA Illuminator
H P A C C P Alliance
33
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Posted - 2016.06.07 13:41:05 -
[50] - Quote
William Weatherwax wrote:Kolmogorow wrote:Yesterday I had my first clear centrosome image (mainly double-dots, but in some cells only one dot)! They seem to be quite rare. One question about them: I've read on Wikipedia that the centrosome "serves as the main microtubule organizing center (MTOC)". But in PD there is also the "microtubule organizing center" as a separate image classification (more a diffuse ball rather than one or two sharp dots). Hence I thought centrosome and MTOC would be two different biological objects. Are they actually the same organelle and only the green staining is sometimes sharp and sometimes diffuse for some reason?
Hi Kolmogorow, the centrosome is both. In the beginning it will be a ball but once the cell division starts it will separate and each part will migrate to the opposite poles of the cell. While doing this they are connected by the microtubuli.
That was a great reply!
I just want to add that MTOC differs from centrosomes (since we can't distinguish the individual centrosome/s), so it could be e.g. a protein in the pericentriolar matrix which is surrounding the centrosome, or vesicles that are clustering around the centrosomes.
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HPA Illuminator
H P A C C P Alliance
34
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Posted - 2016.09.02 06:51:37 -
[51] - Quote
What you see there is a cell undergoing cell division (mitosis). The chromosomes (DNA, blue) have duplicated and condensed and lined up next to each other. The microtubules (red) have disassembled to form the mitotic spindle (red), which will attach to sites on the chromosomes and will pull them apart with the help of centrosomes. This will result in two (small) daughter cells that each have a copy of the DNA. After division they don't immediately detach, but are sort of stuck together (via the cytokinetic bridge), before cut off at the cytokinetic bridge cleavage site.
In the first image it seems like there's some green staining overlapping with the red, which would suggest that the protein might help out with the pulling apart of the chromosomes. The second image seems to show an overlap with blue and green, possibly indicating a DNA-binding protein. |

HPA Illuminator
H P A C C P Alliance
35
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Posted - 2016.09.22 10:49:57 -
[52] - Quote
Yes, but the cytokinetic bridges are only seen in the red channel, not the green, and should thus not be labeled. |
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