小柯机器人

日本千叶大学Atsushi Kaneda、新加坡国立大学Patrick Tan等研队人员合作发现EB病毒通过重塑表观修饰来促进胃癌发生。该研究于2020年7月27日在线发表于《自然—遗传学》。

Title: Cross-species chromatin interactions drive transcriptional rewiring in Epstein–Barr virus–positive gastric adenocarcinoma

Author: Atsushi Okabe, Kie Kyon Huang, Keisuke Matsusaka, Masaki Fukuyo, Manjie Xing, Xuewen Ong, Takayuki Hoshii, Genki Usui, Motoaki Seki, Yasunobu Mano, Bahityar Rahmutulla, Teru Kanda, Takayoshi Suzuki, Sun Young Rha, Tetsuo Ushiku, Masashi Fukayama, Patrick Tan, Atsushi Kaneda

Issue&Volume: 2020-07-27

Abstract: Epstein–Barr virus (EBV) is associated with several human malignancies including 8–10% of gastric cancers (GCs). Genome-wide analysis of 3D chromatin topologies across GC lines, primary tissue and normal gastric samples revealed chromatin domains specific to EBV-positive GC, exhibiting heterochromatin-to-euchromatin transitions and long-range human–viral interactions with non-integrated EBV episomes. EBV infection in vitro suffices to remodel chromatin topology and function at EBV-interacting host genomic loci, converting H3K9me3+ heterochromatin to H3K4me1+/H3K27ac+ bivalency and unleashing latent enhancers to engage and activate nearby GC-related genes (for example TGFBR2 and MZT1). Higher-order epigenotypes of EBV-positive GC thus signify a novel oncogenic paradigm whereby non-integrative viral genomes can directly alter host epigenetic landscapes (‘enhancer infestation’), facilitating proto-oncogene activation and tumorigenesis.

DOI: 10.1038/s41588-020-0665-7

Source: https://www.nature.com/articles/s41588-020-0665-7

Nature Genetics：《自然—遗传学》，创刊于1992年。隶属于施普林格·自然出版集团，最新IF：41.307
官方网址：https://www.nature.com/ng/
投稿链接：https://mts-ng.nature.com/cgi-bin/main.plex