| Autor: |
Quan Zhao, Yu-Gen Chen, Chen-Yu Zhang, Ke Zen, Bo-Lin Yang, Renxiang Tan, Jin-Yong Zhou, Xi Chen, Chi Ma, Zhuchen Li, Min Nie, Yupeng Wu, Yadong Wang, Ying Wang, Xiao-Bin Wu, Junyi Ju, Dan Zhang, Feifei Huang, Ming Liu |
| Rok vydání: |
2023 |
| DOI: |
10.1158/0008-5472.c.6507090.v1 |
| Popis: |
Colorectal cancer pathogenesis remains incompletely understood. Here, we report that the heterochromatin protein HP1γ is upregulated commonly in human colorectal cancer, where it promotes cell proliferation in vitro and in vivo. Gene-expression and promoter-binding experiments demonstrated that HP1γ directly regulated CDKN1A (p21Waf1/Cip1) in a manner associated with methylation of histone H3K9 on its promoter. We identified miR-30a as a tumor-suppressive microRNA that targets HP1γ in vitro and in vivo to specifically suppress the growth of colorectal cancer in mouse xenograft models. MiR-30a was widely downregulated in primary human colorectal cancer tissues, where its expression correlated inversely with high levels of HP1γ protein. Our results identify a new miR-30a/HP1γ/p21 regulatory axis controlling colorectal cancer development, which may offer prognostic and therapeutic opportunities. Cancer Res; 75(21); 4593–604. ©2015 AACR. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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