miR‐144‐5p enhances the Radiosensitivity of non‐small‐cell lung Cancer cells via targeting ATF2
Abstract
MicroRNAs (miRNAs or miRs) regulate gene expression at the posttranscriptional level and are involved in many biological processes such as cell proliferation and migration, stem cell differentiation, inflammation, and apoptosis. In particular, miR-144-3p is downregulated in various cancers, and its overexpression inhibits the proliferation and metastasis of cancer cells. However, the role of miR-144-5p in non-small-cell lung cancer (NSCLC), especially radiosensitivity, is unknown. In this study, we found that miR-144-5p was downregulated in NSCLC clinical specimens as well as NSCLC cell lines exposed to radiation. Enhanced expression of miR-144-5p promoted the radiosensitivity of NSCLC cells in vitro and A549 cell mouse xenografts in vivo. Furthermore, we identified activating transcription factor 2 (ATF2) as the direct and functional target of miR-144-5p using integrated bioinformatics analysis and a luciferase reporter assay. In addition, restoration of ATF2 expression inhibited miR-144-5p-induced NSCLC cell sensitivity to radiation in vitro and in vivo. Our findings suggest that deregulation of the miR-144-5p/ATF2 axis plays an important role in NSCLC cell radiosensitivity, thus representing a new potential therapeutic target for NSCLC.
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miR-144* (5p) directly targets ATF2.
“miR‐144* (5p) directly targets ATF2, and it is possible that increased ATF2 levels upon reduced miR‐144* (5p) activity contributes to progression of NSCLC (Song et al., 2018).”
From microRNA strand selection: Unwinding the rules (2021) · cites this paper as Song et al., 2018
miR-144* (5p) expression is down-regulated in nonsmall cell lung cancer (NSCLC).
“miR‐144* (5p) expression is down‐regulated in nonsmall cell lung cancer (NSCLC) (Song et al., 2018), (Table 1).”
From microRNA strand selection: Unwinding the rules (2021) · cites this paper as Song et al., 2018
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Cited by
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microRNA strand selection: Unwinding the rules
Medley, J. C., Panzade, G., & Zinovyeva, A. Y. (2021) · WIREs RNA · doi:10.1002/wrna.1627 · Cited by 225 · see citing works
- Authors
- Song, L., Peng, L., Hua, S., Li, X., Ma, L., Jie, J., Chen, D., Wang, Y., & Li, D.
- Affiliations
- Department of Respiratory Medicine, The First Hospital of Jilin University, Changchun, Jilin 130021, China
- Department of Pediatrics, The First Hospital of Jilin University, Changchun, Jilin 130021, China
- Endoscopy Center, The China-Japan Union Hospital of Jilin University, 146 Xiantai Street, Changchun, Jilin 130021, China
- Venue
- BioMed Research International
- Publisher
- Wiley
- Published
- 2018
- Volume
- 2018
- Pages
- 1-10
- ISSN
- 2314-6133
- 2314-6141
- PMC
- PMC5925000
- Cited by
- 61
- References
- 0
- Language
- en
- Funders
- Project of Science and Technology Agency of Jilin Province (20180520130JH, 2017062209JC)
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