Identification of novel genes and networks governing hematopoietic stem cell development
Authors: Tianxu Han; Chao‐Shun Yang; Kung‐Yen Chang; Danhua Zhang; Farhad B Imam; Tariq M Rana
Step 1: iPSC/ESC maintainance
day 0 ~ 2
culture “adherent” mouse ESC in “DMEM” for “2” days. Medium should contain factors shown in the following table, and should be changed once in “2” days.
| concentration | unit | |
|---|---|---|
| FBS | 15 | % |
| NEAA | 1.0e-4 | mol/l |
| glutamine | 0.002 | mol/l |
| PSA | 0.05 | g/l |
| streptomycin | 0.075 | g/l |
| MTG | 8.6e-4 | % |
| LIF | 1.0e+6 | U/l |
Ideally, “ESC” should be obtained at the end of culture.
Step 2: mesoderm 1
day 2 ~ 4
culture “spheroid” mouse ESC in “IMDM” for “2” days. Medium should contain factors shown in the following table, and should be changed once in “2” days.
| concentration | unit | |
|---|---|---|
| FBS | 15 | % |
| glutamine | 0.002 | mol/l |
| PSA | 0.05 | g/l |
| streptomycin | 0.075 | g/l |
| MTG | 4.5e-4 | mol/l |
| Transferrin | 0.2 | g/l |
| Ascorbic Acid | 0.05 | g/l |
Ideally, “ME” should express “CDH5”, “PECAM1”, “TEK”, “Scl”, “CD41”, “KDR”, “Cxcr4” at the end of culture.
Step 3: mesoderm 2
day 4 ~ 5 (duration missing in database; assumed 1 day)
culture “adherent” mouse ME in “IMDM”. “ME” should be “upregulated” for “HoxB4”. Medium should contain factors shown in the following table.
| concentration | unit | |
|---|---|---|
| FBS | 10 | % |
| glutamine | 0.002 | mol/l |
| PSA | 0.05 | g/l |
| streptomycin | 0.075 | g/l |
| SCF | 1.0e-4 | g/l |
| VEGF | 4.0e-5 | g/l |
| TPO | 4.0e-5 | g/l |
| Flt-3 ligand | 1.0e-4 | g/l |
| doxycycline | 0.001 | g/l |