ZEB2 and MEIS1 independently contribute to hematopoiesis via early hematopoietic enhancer activation
DOI: 10.1016/j.isci.2023.107893
Authors: Yohko Kitagawa; Akihiro Ikenaka; Ryohichi Sugimura; Akira Niwa; Megumu K. Saito
Step 1: iPSC/ESC maintainance
day 0 ~ 3
culture “adherent” human PSC in “mTeSR” for “3” days. For ECM, use “Laminin” at “N/A” “N/A”. Medium should be changed once in “3” days.
Ideally, “PSC” should be obtained at the end of culture.
Step 2: Primitive streak 1
day 3 ~ 5
culture “adherent” human PSC in “E8” for “2” days. For ECM, use “Laminin” at “N/A” “N/A”. Medium should contain factors shown in the following table, and should be changed once in “2” days.
| concentration | unit | |
|---|---|---|
| BMP4 | 8.0e-5 | g/l |
| VEGF | 8.0e-5 | g/l |
| CHIR90021 | 4.0e-6 | mol/l |
Step 3: mesoderm 1
day 5 ~ 7
culture “adherent” human PSC in “E6 medium” for “2” days. For ECM, use “Laminin” at “N/A” “N/A”. Medium should contain factors shown in the following table, and should be changed once in “2” days.
| concentration | unit | |
|---|---|---|
| VEGF | 8.0e-5 | g/l |
| FGF | 2.5e-5 | g/l |
| SB431542 | 2.0e-6 | mol/l |
| SCF | 5.0e-5 | g/l |
Ideally, “mesoderm” should be obtained at the end of culture.
Step 4: endothelial 1
day 7 ~ 9
culture “adherent” human PSC in “E6 medium” for “2” days. For ECM, use “Laminin” at “N/A” “N/A”. Medium should contain factors shown in the following table, and should be changed once in “2” days.
| concentration | unit | |
|---|---|---|
| VEGF | 8.0e-5 | g/l |
| FGF | 2.5e-5 | g/l |
| SB431542 | 2.0e-6 | mol/l |
| SCF | 5.0e-5 | g/l |
Ideally, “HE” should be obtained at the end of culture.
Step 5: endothelial 2
day 9 ~ 12
culture “adherent” human PSC in “StemLine II” for “3” days. For ECM, use “Retronectin” at “N/A” “N/A”. Medium should contain factors shown in the following table, and should be changed once in “3” days.
| concentration | unit | |
|---|---|---|
| SCF | 5.0e-5 | g/l |
| FLT3L | 5.0e-5 | g/l |
| TPO | 5.0e-6 | g/l |
| FP6 | 2.0e-5 | g/l |
| DAPT | 1.0e-5 | mol/l |
| SB431542 | 2.0e-6 | mol/l |
Ideally, “HE” should be obtained at the end of culture. Ideally, “EC” should be obtained at the end of culture.