Vitamin C–dependent lysine demethylase 6 (KDM6)-mediated demethylation promotes a chromatin state that supports the endothelial-to-hematopoietic transition

DOI: 10.1074/jbc.RA119.009757

Authors: Tian Zhang; Ke Huang; Yanling Zhu; Tianyu Wang; Yongli Shan; Bing Long; Yuhang Li; Qianyu Chen; Pengtao Wang; Shaoyang Zhao; Dongwei Li; Chuman Wu; Baoqiang Kang; Jiaming Gu; Yuchan Mai; Qing Wang; Jinbing Li; Yanqi Zhang; Zechuan Liang; Lin Guo; Fang Wu; Shuquan Su; Junwei Wang; Minghui Gao; Xiaofen Zhong; Baojian Liao; Jiekai Chen; Xiao Zhang; Xiaodong Shu; Duanqing Pei; Jinfu Nie; Guangjin Pan

Step 1: iPSC/ESC maintainance

day 0 ~ 1

culture “adherent” human PSC in “mTeSR” for “1” days. For ECM, use “Matrigel” at “N/A” “N/A”. Medium should contain factors shown in the following table, and should be changed once in “1” days.

concentrationunit
Thiazovivin1.0e-7mol/l

Step 2: Primitive streak 1

day 1 ~ 2

culture “adherent” human PSC in “DMEM/F12” for “1” days. For ECM, use “Matrigel” at “N/A” “N/A”. Medium should contain factors shown in the following table, and should be changed once in “1” days.

concentrationunit
BMP4.0e-5g/l
Activin A3.0e-5g/l
FGF2.0e-5g/l
CHIR900216.0e-6mol/l
LY2940021.0e-5mol/l
ITS1%
Ascorbic Acid70g/l
NaCl9%

Ideally, “PS” should express “TBXT” at the end of culture.

Step 3: mesoderm 1

day 2 ~ 3

culture “adherent” human PSC in “DMEM/F12” for “1” days. For ECM, use “Matrigel” at “N/A” “N/A”. Medium should contain factors shown in the following table, and should be changed once in “1” days.

concentrationunit
BMP3.0e-5g/l
A83-011.0e-6mol/l
IWR12.0e-6mol/l
ITS1%
Ascorbic Acid70g/l
NaCl9%

Ideally, “LM” should express “HAND1”, “MSGN1” at the end of culture.

Step 4: endothelial 1

day 3 ~ 4

culture “adherent” human PSC in “DMEM/F12” for “1” days. For ECM, use “Matrigel” at “N/A” “N/A”. Medium should contain factors shown in the following table, and should be changed once in “1” days.

concentrationunit
VEGF4.0e-5g/l
FGF5.0e-5g/l
ITS1%
Ascorbic Acid70g/l
NaCl9%

Ideally, “HEC” should express “GATA2”, “PECAM1”, “RUNX1”, “MYB” at the end of culture.

Step 5: endothelial 2

day 4 ~ 5

culture “adherent” human PSC in “DMEM/F12” for “1” days. For ECM, use “Matrigel” at “N/A” “N/A”. Medium should contain factors shown in the following table, and should be changed once in “1” days.

concentrationunit
VEGF4.0e-5g/l
FGF5.0e-5g/l
SB4315421.0e-5mol/l
SCF1.0e-5g/l
TPO5.0e-5g/l
IL31.0e-5g/l
IL65.0e-5g/l
ITS1%
Ascorbic Acid70g/l
NaCl9%