Development of human iPSC-derived quiescent hepatic stellate cell-like cells for drug discovery and in vitro disease modeling
DOI: 10.1016/j.stemcr.2021.11.002
Authors: Yuta Koui; Misao Himeno; Yusuke Mori; Yasuhiro Nakano; Eiko Saijou; Naoki Tanimizu; Yoshiko Kamiya; Hiroko Anzai; Natsuki Maeda; Luyao Wang; Tadanori Yamada; Yasuyuki Sakai; Ryuichiro Nakato; Atsushi Miyajima; Taketomo Kido
Step 1: iPSC/ESC maintainance
day 0 ~ 1 (duration missing in database; assumed 1 day)
culture “adherent” human PSC in “StemFlex Medium”. For ECM, use “Vitronectin” at “N/A” “N/A”.
Ideally, “PSC” should express “OCT3/4” at the end of culture.
Step 2: Primitive streak 1
day 1 ~ 2
culture “spheroid” human PSC in “StemPro” for “1” days. Medium should contain factors shown in the following table, and should be changed once in “1” days.
| concentration | unit | |
|---|---|---|
| Y27632 | 1.0e-5 | mol/l |
| BMP4 | 2.0e-6 | g/l |
Step 3: Primitive streak 2
day 2 ~ 5
culture “spheroid” human PSC in “StemPro” for “3” days. Medium should contain factors shown in the following table, and should be changed once in “3” days.
| concentration | unit | |
|---|---|---|
| Activin A | 1.2e-6 | g/l |
| FGF | 5.0e-6 | g/l |
| BMP4 | 3.0e-5 | g/l |
Step 4: mesoderm 1
day 5 ~ 9
culture “spheroid” human PSC in “StemPro” for “4” days. Medium should contain factors shown in the following table, and should be changed once in “4” days.
| concentration | unit | |
|---|---|---|
| VEGF | 1.0e-5 | g/l |
| SB431542 | 5.4e-6 | mol/l |
| Dorsomorphin | 5.0e-7 | mol/l |
| Y27632 | 1.0e-5 | mol/l |
Ideally, “mesoderm” should express “MESP1”, “TBXT” at the end of culture.