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자료유형
학술저널
저자정보
Xiaofan Xia (Department of Respiratory and Critical Care Medicine Wuhan Red Cross Hospital Wuhan No.11 Hospital Wuhan 430015 China) Jinxiu Fan (Department of Respiratory and Critical Care Medicine Wuhan Red Cross Hospital Wuhan No.11 Hospital Wuhan 430015 China) Zhongjie Fan (Department of Respiratory and Critical Care Medicine Wuhan Red Cross Hospital Wuhan No.11 Hospital Wuhan 430015 China)
저널정보
대한약리학회 The Korean Journal of Physiology & Pharmacology The Korean Journal of Physiology & Pharmacology 제27권 제2호
발행연도
2023.2
수록면
131 - 141 (11page)
DOI
10.4196/kjpp.2023.27.2.131

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Compelling evidence has demonstrated the critical role of circular RNAs (circRNAs) during lung adenocarcinoma (LUAD) progression. Herein, we explored a novel circRNA, circ_0129047, and detailed its mechanism of action. The expression of circ 0129047, microRNA-665 (miR-665), and protein tyrosine phosphatase receptor type B (PTPRB) in LUAD tissues and cells was determined using reverse transcription quantitative polymerase chain reaction and Western blotting. Cell Counting Kit- 8 and colony formation assays were conducted to detect LUAD cell proliferation, and western blotting was performed to quantify apoptosis-related proteins (Bcl- 2 and Bax). Luciferase reporter and RNA immunoprecipitation assays were used to validate the predicted interaction between miR-665 and circ_0129047 or PTPRB. A xenograft assay was used for the in vivo experiments. Circ_0129047 and PTPRB were downregulated in LUAD tissues and cells, whereas miR-665 expression was upregulated. Overexpression of circ_0129047 suppresses LUAD growth in vivo and in vitro. Circ_0129047 is the target of miR-665, and the miR-665 mimic ablated the antiproliferative and pro-apoptotic phenotypes of LUAD cells by circ_0129047 augmentation. MiR-665 targets the 3ʹUTR of PTPRB and downregulates PTPRB expression. PTPRB overexpression offsets the pro-proliferative potential of miR-665 in LUAD cells. Circ_0129047 sequestered miR-665 and upregulated PTPRB expression, thereby reducing LUAD progression, suggesting a promising approach for preventing LUAD.

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