Reprogramming of Expanded Cord Blood-Derived CD34+ Cells from Umbilical Cord-Mesenchymal Stromal Cell Co-Culture to Generate Human-Induced Pluripotent Stem Cells.

Autor: Roslan, Fatin Fazrina, Yu, Yuexin, Wang, Mengmeng, Mohd Yusof, Nurul Ain Nasim, Ooi, Ghee Chien, Then, Khong Lek, Then, Kong Yong, Cheong, Soon‐Keng, Ab Patar, Mohd Nor Azim, Tan, Jun Jie
Zdroj: Cellular Reprogramming; Dec2024, Vol. 26 Issue 6, p164-176, 13p
Abstrakt: Cord blood (CB) is widely stored as a source of hematopoietic stem cells for potential future use, though its application for autologous purposes remains limited. Repurposing CB into human-induced pluripotent stem cells (hiPSCs) can broaden its utility beyond hematological conditions. This study investigated the effects of umbilical cord-mesenchymal stromal cell (UC-MSC) co-culture on CB CD34+ cells and the characteristics of the resulting hiPSCs. CD34+ cells were isolated, expanded in UC-MSC co-culture for 3 days, and reprogrammed into hiPSCs using episomal vectors. Results showed that UC-MSC co-culture significantly increased CD34+ cell numbers (p < 0.0001, n = 6), with a reduced population doubling time of 25.1 ± 2.1 hours compared with the control (p < 0.0004, n = 6). The yield of CD34+ cells was substantially higher in the UC-MSC co-culture group. The hiPSCs exhibited comparable reprogramming efficiency, pluripotency marker expression, trilineage differentiation potential, and genomic stability to CD34+ cells expanded under standard culture conditions. These findings suggest that CD34+ cells from CB, expanded in UC-MSC co-culture, can be reprogrammed into functional hiPSCs without compromising cell quality or genetic stability. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index