Etchevers:Notebook/Genomics of hNCC/2008/09/08
|Genomics of human neural crest cells||Main project page|
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Passage of hNCC-T and hNCC-C in different media
Decided to pass the trunk-level and cephalic-level cells in Rich and P media, and maybe the S/C media for the hNCC-C tomorrow.
3' warm trypsin after rinsed in warm PBS. Stopped in 6 ml 10% serum-containing RPMI, but maybe next time should just put into large volume warm PBS as they stuck a lot, particularly those from the P medium.
hNCC-C in Rich: mostly small diameters, 9 to a square with a few 4 to a square or even a couple of big blasts 2 to a square; 29, 21, and 23 cells. x104 cells, is equivalent to 2.4 x 105 cells.
hNCC-T in Rich: 25, 24 and 30 x104 cells, is equivalent to 2.6 x 105 cells.
hNCC-C in P: Clumpy in tube, but did not see these clumps in Neubauer. 13, 13, 13, 14 x104 cells, is equivalent to 1.3 x 105 cells.
hNCC-T in P: As above. 19, 18, 12, 14 x104 cells, is equivalent to 1.6 x 105 cells.
Well, shoot me. Where did all those cells go? Divided the Rich medium into 2 x 35 mm plates, and put all of the P medium cells back into 1 x 35 mm.
In other news, here are the raw tag counts (divide by 50,500 and multiply by 106 to get LongSAGE tag counts per million for the hNCC column at least) of all genes I could find associated with chemokines or their receptors. I don't remember off the top of my head how many tags were for the other four SAGE banks - this is not yet published and in collaboration - but upwards of 35K, I think. These banks are established from microdissected bits of the neural tube from which the hNCC migrate at stages Carnegie 12 and 13, in brain and anterior spinal cord fragments.