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Efficient endodermal induction of human adipose stem cells using various concentrations of Activin A for hepatic differentiation

Authors
 Sang Woo Lee ; Seon Ok Min ; Kyung Sik Kim ; Ho Kyoung Hwang ; Seon Young Bak 
Citation
 Biochemical and Biophysical Research Communications, Vol.464(4) : 1178~1184, 2015 
Journal Title
 Biochemical and Biophysical Research Communications 
ISSN
 0006-291X 
Issue Date
2015
Abstract
Activin A, which is a signaling molecule similar to Nodal, rapidly promotes endoderm induction of both embryonic stem (ES) cells and MSCs. Protocols for hepatic induction exhibit differences in efficiency and reproducibility depending on the specific methods or sources of MSCs. We characterized the effects of Activin A concentration on induction efficiency during hepatic differentiation of MSCs. Human MSCs (hMSCs) were differentiated into a hepatic lineage via a three-step protocol. Cells were first cultured in fetal bovine serum-free MSCs conditioned medium supplemented with Activin A (20, 50, or 100 ng/mL) for 3 days followed by treatment with additional agents. RT-PCR analysis, immunocytochemistry assays, periodic acid and Schiff's solution staining, and ELISAs were performed to confirm hepatic induction of hMSCs. Expression of genes related to the primitive foregut endoderm was observed in cells treated with higher concentration of Activin A. Gene expression related to functional primitive hepatocytes was observed in the early phases of hepatic differentiation. During the early period of the differentiation protocol, greater albumin secretion was observed when cells were treated with higher concentrations of Activin A.
URI
http://ir.ymlib.yonsei.ac.kr/handle/22282913/141179
DOI
10.1016/j.bbrc.2015.07.100
Appears in Collections:
1. 연구논문 > 1. College of Medicine > Dept. of Surgery
Yonsei Authors
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Link
 http://www.sciencedirect.com/science/article/pii/S0006291X15303302
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