Pluripotent stem cell model of Shwachman–Diamond syndrome reveals apoptotic predisposition of hemoangiogenic progenitors
DOI: 10.1038/s41598-020-71844-8
Authors: Takayuki Hamabata; Katsutsugu Umeda; Kagehiro Kouzuki; Takayuki Tanaka; Tomoo Daifu; Seishiro Nodomi; Satoshi Saida; Itaru Kato; Shiro Baba; Hidefumi Hiramatsu; Mitsujiro Osawa; Akira Niwa; Megumu K. Saito; Yasuhiko Kamikubo; Souichi Adachi; Yoshiko Hashii; Akira Shimada; Hiroyoshi Watanabe; Kenji Osafune; Keisuke Okita; Tatsutoshi Nakahata; Kenichiro Watanabe; Junko Takita; Toshio Heike
Step 1: iPSC/ESC maintainance
day 0 ~ 7
culture “adherent” human PSC in “primate ESC medium” for “7” days. Medium should contain factors shown in the following table, and should be changed once in “7” days.
| concentration | unit | |
|---|---|---|
| FGF | 5.0e-6 | g/l |
Ideally, “PSC” should be obtained at the end of culture.
Step 2: mesoderm 1
day 7 ~ 13
culture “adherent” human PSC in “Stemline II” for “6” 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 “6” days.
| concentration | unit | |
|---|---|---|
| ITS | — | — |
| BMP4 | 2.0e-5 | g/l |
| VEGF | 4.0e-5 | g/l |
Ideally, “mesoderm” should express “KDR”, “CD34” at the end of culture.
Step 3: endothelial 1
day 13 ~ 20
culture “adherent” human mesoderm in “alpha-MEM” for “7” days. Medium should contain factors shown in the following table, and should be changed once in “7” days.
| concentration | unit | |
|---|---|---|
| FCS | 10 | % |
| 2-mercaptoethanol | 5.0e-5 | mol/l |
| VEGF | 2.0e-5 | g/l |
Ideally, “EC” should express “PECAM1”, “CDH5”, “CD34”, “CD141”, “MCAM”, “KDR” at the end of culture.