Effect of TRIM28 on proliferation, apoptosis and histone H3K9 trimethylation in bovine fibroblasts

DOI: 10.18805/ijar.B-883    | Article Id: B-883 | Page : 724-730
Citation :- Effect of TRIM28 on proliferation, apoptosis and histone H3K9 trimethylation in bovine fibroblasts.Indian Journal Of Animal Research.2019.(53):724-730
Panpan Ma, Xiaxia Man, Shubao Yang, Xiaoqing Dong, Liyan Su, Weimin Luan and Xin Ma 1285542213@qq.com
Address : College of Animal Science and Technology, Jilin Agricultural University, Changchun 130 118, China.
Submitted Date : 14-12-2017
Accepted Date : 15-10-2018


TRIM28 is a co-repressor, which interacts with HP1 proteins and chromatin repressive complexes leading to gene expression silencing. In this study, after we used Lipofectamine3000-mediating siRNA and restructured p EGFP-IRES2-TRIM28 to transfect bovine fibroblasts, the expression levels of TRIM28, HP1BP3, DNMT, SETDB1, TP53, BAX, Bcl and SOD were detected by real-time polymerase chain reaction (PCR). In addition, the influence of p EGFP-IRES2-TRIM28 on histone H3K9me3 was also observed. In the siRNA transfected group, TRIM28 was down-regulated (P<0.01), which inhibited cell proliferation and reduced the level of H3K9me3 expression. In the p EGFP-IRES2-TRIM28 transfected group, TRIM28 was over-expressed (P<0.01), and the pro-apoptosis gene BAX was significantly decreased (P<0.01), but there was no significant change in other genes. Our results demonstrate that TRIM28 plays an important role in bovine fibroblasts and might be a valuable biomolecule for proliferation, apoptosis, and histone H3K9 trimethylation.


Bovine fibroblasts Down-regulation Over-expression TRIM28.


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