Expandable hESC-derived cardiovascular progenitor cells generate functional cardiac lineage cells for microtissue construction

DOI: 10.1186/s13287-024-03919-6

Authors: Siamak Rezaeiani; Malihe Rezaee; Mojtaba Shafaghi; Mohammad Karami; Roghayeh Hamidi; Hamid Khodayari; Sadaf Vahdat; Sara Pahlavan; Hossein Baharvand

Step 1: iPSC/ESC maintainance

day 0 ~ 5

culture “spheroid” human ESC in “unspecified medium” for “5” days. Medium should be changed once in “5” days.

Step 2: mesoderm 1

day 5 ~ 6

culture “spheroid” human ESC in “unspecified medium” for “1” days. Medium should contain factors shown in the following table, and should be changed once in “1” days.

concentrationunit
CHIR900211.2e-5mol/l

Step 3: mesoderm 2

day 6 ~ 8

culture “spheroid” human ESC in “unspecified medium” for “2” days. Medium should contain factors shown in the following table, and should be changed once in “2” days.

concentrationunit
IWP25.0e-6mol/l

Ideally, “CPC” should express “NKX2.5”, “ADGRL2”, “ISL1” at the end of culture.

Step 4: endothelial 1

day 8 ~ 10

culture “adherent” human CPC in “DMEM/F12” for “2” 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 “2” days.

concentrationunit
B272%
Glutamine0.002mol/l
NEAA1%
2-mercaptoethanol1.0e-4mol/l
VEGF5.0e-5g/l
FGF1.0e-5g/l

Ideally, “EC” should express “PECAM1”, “KDR”, “VWF” at the end of culture.