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- Title
LncRNA NEAT1 remodels chromatin to promote the 5-Fu resistance by maintaining colorectal cancer stemness.
- Authors
Zhu, Yihao; Hu, Hanqing; Yuan, Ziming; Zhang, Qian; Xiong, Huan; Hu, Zhiqiao; Wu, Hongyu; Huang, Rui; Wang, Guiyu; Tang, Qingchao
- Abstract
Resistance of chemotherapy is one of causes of recurrence and poor prognosis in patients with colorectal cancer (CRC). The role of differentially expressed long non-coding RNA (lncRNA) in 5-fluorouracil (5-Fu) resistance has not been fully elucidated. Here we observed that lncRNA NEAT1 was associated with 5-Fu resistance in CRC. Our Functional studies showed that NEAT1 promoted 5-Fu resistance in colorectal cells. In addition, A-TAC sequencing and chromatin immunoprecipitation (ChIP) showed that NEAT1 affected chromatin remodeling, increased the acetylation levels of histones, increased their enrichment at the promoters of ALDH1 and c-Myc, and promoted the expression of ALDH1 and c-Myc. Taken together, our study suggested that NEAT1 promoted 5-Fu resistance and cancer stemness by remodeling chromatin. Our finding provides a novel role of NEAT1 and may provide a new strategy for the treatment of CRC 5-Fu resistance.
- Publication
Cell Death & Disease, 2020, Vol 11, Issue 11, p1
- ISSN
2041-4889
- Publication type
Article
- DOI
10.1038/s41419-020-03164-8