HBV Integration-mediated Cell Apoptosis in HepG2.2.15

In this study, HepG2.2.15 cells showed decreased proliferation, G1 cell cycle arrest and increased apoptosis, when compared to HepG2 cells. HBV capture sequencing was conducted in both genome and transcriptome level, followed by RNA expression sequencing in HepG2.2.15. Here, CAMSAP2/CCDC12/DPP7/OR4F3 were found to be targets for HBV integration in both genome and transcriptome level, accompanied by alteration in their expression when compared to HepG2. Among these genes, DPP7 was the only one gene with HBV integration into its exon, meanwhile DPP7 expression level was also downregulated in HepG2.2.15 as compared to HepG2. Furthermore, DPP7 knockdown resulted in increased apoptosis through upregulation of the Bax/Bcl2 ratio in HepG2 cells. Our results suggest that HBV integration of DPP7 was involved in cell apoptosis.

Source: Journal of Cancer - December 14, 2019 Category: Cancer & Oncology Authors: Xiaoge Hu, Jiahong Jiang, Chao Ni, Qiuran Xu, Song Ye, Junjie Wu, Feimin Ge, Yong Han, Yinyuan Mo, Dongsheng Huang, Liu Yang Tags: Research Paper Source Type: research