Bioprinting of human pluripotent stem cell derived corneal endothelial cells with hydrazone crosslinked hyaluronic acid bioink
DOI: 10.1186/s13287-024-03672-w
Authors: Pyry Grönroos; Anni Mörö; Paula Puistola; Karoliina Hopia; Maija Huuskonen; Taina Viheriälä; Tanja Ilmarinen; Heli Skottman
Step 1: iPSC/ESC maintainance
day 0 ~ 1
culture “adherent” human PSC in “E8” for “1” days. For ECM, use “Laminin-521” at “N/A” “N/A”. Medium should be changed once in “1” days.
Ideally, “PSC” should be obtained at the end of culture.
Step 2: endothelial 1
day 1 ~ 7
culture “adherent” human PSC in “KO-DMEM” for “6” days. For ECM, use “Laminin-521” at “N/A” “N/A”. Medium should contain factors shown in the following table, and should be changed once in “6” days.
| concentration | unit | |
|---|---|---|
| KSR | 15 | % |
| GlutaMAX | 0.002 | mol/l |
| 2-mercaptoethanol | 1.0e-4 | mol/l |
| PSA | 50000 | U/l |
| NEAA | 1 | % |
| SB431542 | 1.0e-5 | mol/l |
| CHIR90021 | 4.0e-6 | mol/l |
| retinoic acid | 1.0e-5 | mol/l |
Ideally, “CEnC” should be obtained at the end of culture.
Step 3: endothelial 2
day 7 ~ 10
culture “adherent” human PSC in “KO-DMEM” for “3” days. For ECM, use “Laminin-521” at “N/A” “N/A”. Medium should contain factors shown in the following table, and should be changed once in “3” days.
| concentration | unit | |
|---|---|---|
| KSR | 15 | % |
| GlutaMAX | 0.002 | mol/l |
| 2-mercaptoethanol | 1.0e-4 | mol/l |
| PSA | 50000 | U/l |
| NEAA | 1 | % |
| SB431542 | 1.0e-5 | mol/l |
| CHIR90021 | 4.0e-6 | mol/l |
| retinoic acid | 1.0e-6 | mol/l |
Ideally, “CEnC” should be obtained at the end of culture.