Generation of a P19-αMHC-EGFP reporter line and cardiomyocyte differentiation
10.3321/j.issn:0253-3758.2008.08.005
- VernacularTitle:P19-αMHC-EGFP干细胞株的构建及其向心肌细胞诱导分化的初步研究
- Author:
Jie GONG
1
;
Qi-Jun ZHANG
;
Jian WANG
;
Feng-Rong SUN
;
Ling-Mei QIAN
;
Xiang-Qing KONG
;
Rong YANG
;
Yan-Hui SHENG
;
Ke-Jiang CAO
Author Information
1. 江苏省心血管病临床医学中心
- Keywords:
Myocardium;
Stem cells;
Cell differentiation
- From:
Chinese Journal of Cardiology
2008;36(8):691-694
- CountryChina
- Language:Chinese
-
Abstract:
Objective To generate a P19-αMHC-EGFP reporter line and induce cardiomyocyte differentiation of this reporter line. Methods The P19 cells were transfected with pαMHC-EGFP, a P19- αMHC-EGFP reporter line was obtained after G418 selection and limited dilution of recombinant clones, The reporter line was induced to differentiate into cardiomyocytes which would beat and express green fluorescent protein. A comparison of cardiomyocyte differentiation rate and cTnI expression amount between the reporter line and the untransfected P19 cells was also performed. The ultrastructure was observed under transmission electron microscope. Results The ultrastructure characteristics indicated cardiomyocytes-like changes on induction day 10. The beating cardiomyocytes which express GFP appear in the seventh induction day. The cardiomyocyte differentiation rate and cTnI expression amount of P19-αMHC-EGFP reporter line were similar as those in untransfected P19 cells (P > 0. 05). Conclusion The P19-αMHC-EGFP reporter line is of great benefit for identifying and purifying cardiomyocytes from undifferentiated P19 cells without influencing the differentiation of P19 cells. This feature makes P19-αMHC-EGFP reporter line a promising cell source for clinical cardiomyocyte replacement therapy.
