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Yin H, Qin H, Yang L, Chen M, Yang Y, Zhang W, Hao J, Lu Q, Shi J, Zhuang J, Qiu X, Guo H. circCYP24A1 promotes Docetaxel resistance in prostate Cancer by Upregulating ALDH1A3. Biomark Res 2022; 10:48. [PMID: 35831872 PMCID: PMC9277795 DOI: 10.1186/s40364-022-00393-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Accepted: 06/23/2022] [Indexed: 02/02/2024] Open
Abstract
Background Docetaxel (DTX) is the most widely prescribed first-line chemotherapy for advanced prostate cancer (PCa). Unfortunately, DTX resistance invariably emerges, leading to worse prognosis of PCa. Growing evidence has shown that circRNAs had complex spatiotemporal specificity during the tumor development and oncogenesis. This study was designed to investigate the biological functions and possible molecular mechanisms of circRNAs in DTX resistance of PCa. Methods circRNAs in established DTX-resistant DU145 cell line were identified by RNA sequencing. Biological function of circCYP24A1 was verified in vitro and in vivo. The potential role of circCYP24A1 in the development of DTX-resistant PCa was investigated via dual-luciferase reporter assays, RIP assays and RNA pull-down assays. Univariate and multivariate logistic regression analyses was used to predict DTX-chemotherapy response based on patients’ clinical and biological information. Results CircCYP24A1 was identified to be upregulated in DTX-resistant DU145 cells. Upregulated circCYP24A1 was found to suppress the DTX chemosensitivity in vitro and in vivo. Furthermore, we found that circCYP24A1 promoted DTX resistance in PCa via regulating ALDH1A3 expression by sponging miR-1301-3p and activating PI3K/AKT/mTOR signaling pathway. Statistical analyses elucidated that circCYP24A1 was an independent risk factor to predict DTX response (OR = 0.165; 95% CI: 0.038–0.723; P = 0.017). Conclusions This study demonstrated that circCYP24A played an essential role in DTX resistance in PCa, suggesting that circCYP24A1 could be a promising biomarker to predict DTX response and a potential therapeutic target in PCa patients resistant to DTX chemotherapy. Supplementary Information The online version contains supplementary material available at 10.1186/s40364-022-00393-1.
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Affiliation(s)
- Haoli Yin
- Department of Urology, Affiliated Drum Tower Hospital, Medical School of Nanjing University, Nanjing, 210008, China.,Institute of Urology, Nanjing University, Nanjing, China
| | - Haixiang Qin
- Department of Urology, Affiliated Drum Tower Hospital, Medical School of Nanjing University, Nanjing, 210008, China.,Institute of Urology, Nanjing University, Nanjing, China
| | - Lei Yang
- Immunology and Reproduction Biology Laboratory & State Key Laboratory of Analytical Chemistry for Life Science, Medical School, Nanjing University, Nanjing, 210093, Jiangsu, China.,Jiangsu Key Laboratory of Molecular Medicine, Nanjing University, Nanjing, 210093, Jiangsu, China
| | - Mengxia Chen
- Department of Urology, Affiliated Drum Tower Hospital, Medical School of Nanjing University, Nanjing, 210008, China.,Institute of Urology, Nanjing University, Nanjing, China
| | - Yang Yang
- Department of Urology, Affiliated Drum Tower Hospital, Medical School of Nanjing University, Nanjing, 210008, China.,Institute of Urology, Nanjing University, Nanjing, China
| | - Wenlong Zhang
- Department of Urology, Affiliated Drum Tower Hospital, Medical School of Nanjing University, Nanjing, 210008, China.,Institute of Urology, Nanjing University, Nanjing, China
| | - Jiange Hao
- Department of Urology, The Second Affiliated Hospital of Dalian Medical University, Dalian, 116000, China
| | - Qun Lu
- Department of Urology, Affiliated Drum Tower Hospital, Medical School of Nanjing University, Nanjing, 210008, China.,Institute of Urology, Nanjing University, Nanjing, China
| | - Jingyan Shi
- Department of Urology, Affiliated Drum Tower Hospital, Medical School of Nanjing University, Nanjing, 210008, China.,Institute of Urology, Nanjing University, Nanjing, China
| | - Junlong Zhuang
- Department of Urology, Affiliated Drum Tower Hospital, Medical School of Nanjing University, Nanjing, 210008, China.,Institute of Urology, Nanjing University, Nanjing, China
| | - Xuefeng Qiu
- Department of Urology, Affiliated Drum Tower Hospital, Medical School of Nanjing University, Nanjing, 210008, China. .,Institute of Urology, Nanjing University, Nanjing, China.
| | - Hongqian Guo
- Department of Urology, Affiliated Drum Tower Hospital, Medical School of Nanjing University, Nanjing, 210008, China. .,Institute of Urology, Nanjing University, Nanjing, China.
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