Protocol to generate endothelial cells, pericytes, and fibroblasts in one differentiation round from human-induced pluripotent stem cells
DOI: 10.1016/j.xpro.2023.102292
Authors: Tea Soon Park; Rishabh Hirday; Amir Ali; Roba Megersa; Rafael Villasmil; Eric Nguyen; Kapil Bharti
Step 1: iPSC/ESC maintainance
day 0 ~ 1 (duration missing in database; assumed 1 day)
culture “adherent” human PSC in “E8”. For ECM, use “vitronectin” at “1” “%”. Medium should contain factors shown in the following table.
| concentration | unit | |
|---|---|---|
| Y27632 | 5.0e-6 | mol/l |
Ideally, “PSC” should be obtained at the end of culture.
Step 2: Primitive streak 1
day 1 ~ 3
culture “adherent” human PSC in “APEL2 medium” for “2” days. For ECM, use “vitronectin” at “1” “%”. Medium should contain factors shown in the following table, and should be changed once in “2” days.
| concentration | unit | |
|---|---|---|
| VEGF | 5.0e-5 | g/l |
| BMP4 | 3.0e-5 | g/l |
| Activin A | 2.5e-5 | g/l |
| CHIR90021 | 1.5e-6 | mol/l |
Ideally, “PS” should be obtained at the end of culture.
Step 3: mesoderm 1
day 3 ~ 5
culture “adherent” human PSC in “APEL2 medium” for “2” days. For ECM, use “vitronectin” at “1” “%”. Medium should contain factors shown in the following table, and should be changed once in “2” days.
| concentration | unit | |
|---|---|---|
| VEGF | 5.0e-5 | g/l |
| SB431542 | 1.0e-5 | mol/l |
Ideally, “mesoderm” should be obtained at the end of culture.
Step 4: endothelial 1
day 5 ~ 6 (duration missing in database; assumed 1 day)
culture “adherent” human PSC in “EGM2”. For ECM, use “FN1” at “0.01” “g/l”. Medium should contain factors shown in the following table.
| concentration | unit | |
|---|---|---|
| Y27632 | 5.0e-6 | mol/l |
| VEGF | 5.0e-5 | g/l |
Ideally, “EC” should be obtained at the end of culture.
Step 5: endothelial 2
day 6 ~ 8
culture “adherent” human PSC in “VascuLife medium” for “2” days. For ECM, use “FN1” at “0.01” “g/l”. Medium should contain factors shown in the following table, and should be changed once in “2” days.
| concentration | unit | |
|---|---|---|
| iCell endothelial cell medium supplement | — | — |
| GlutaMAX | — | — |
| VEGF | 2.5e-5 | g/l |
| FGF | 2.0e-5 | g/l |
| CTGF | 1.0e-5 | g/l |
| Y27632 | 5.0e-6 | mol/l |
Ideally, “EC” should be obtained at the end of culture.