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.

concentrationunit
BMP48.0e-5g/l
VEGF8.0e-5g/l
CHIR900214.0e-6mol/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.

concentrationunit
VEGF8.0e-5g/l
FGF2.5e-5g/l
SB4315422.0e-6mol/l
SCF5.0e-5g/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.

concentrationunit
VEGF8.0e-5g/l
FGF2.5e-5g/l
SB4315422.0e-6mol/l
SCF5.0e-5g/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.

concentrationunit
SCF5.0e-5g/l
FLT3L5.0e-5g/l
TPO5.0e-6g/l
FP62.0e-5g/l
DAPT1.0e-5mol/l
SB4315422.0e-6mol/l

Ideally, “HE” should be obtained at the end of culture. Ideally, “EC” should be obtained at the end of culture.