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Lyu F, Huang S, Yan Z, He Q, Liu C, Cheng L, Cong Y, Chen K, Song Y, Xing Y. CircUGGT2 facilitates progression and cisplatin resistance of bladder cancer through nonhomologous end-joining pathway. Cell Signal 2024; 119:111164. [PMID: 38583745 DOI: 10.1016/j.cellsig.2024.111164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Revised: 03/28/2024] [Accepted: 04/04/2024] [Indexed: 04/09/2024]
Abstract
The development of resistance to cisplatin (CDDP) in bladder cancer presents a notable obstacle, with indications pointing to the substantial role of circular RNAs (circRNAs) in this resistance. Nevertheless, the precise mechanisms through which circRNAs govern resistance are not yet fully understood. Our findings demonstrate that circUGGT2 is significantly upregulated in bladder cancer, facilitating cancer cell migration and invasion. Additionally, our analysis of eighty patient outcomes revealed a negative correlation between circUGGT2 expression levels and prognosis. Using circRNA pull-down assays, mass spectrometry analyses, and RNA Immunoprecipitation (RIP), it was shown that circUGGT2 interacts with the KU heterodimer, consisting of KU70 and KU80. Both KU70 and KU80 are critical components of the non-homologous end joining (NHEJ) pathway, which plays a role in CDDP resistance. Flow cytometry was utilized in this study to illustrate the impact of circUGGT2 on the sensitivity of bladder cancer cell lines to CDDP through its interaction with KU70 and KU80. Additionally, a reduction in the levels of DNA repair factors associated with the NHEJ pathway, such as KU70, KU80, DNA-PKcs, and XRCC4, was observed in chromatin of bladder cancer cells following circUGGT2 knockdown post-CDDP treatment, while the levels of DNA repair factors in total cellular proteins remained constant. Thus, the promotion of CDDP resistance by circUGGT2 is attributed to its facilitation of repair factor recruitment to DNA breaks via interaction with the KU heterodimer. Furthermore, our study demonstrated that knockdown of circUGGT2 resulted in reduced levels of γH2AX, a marker of DNA damage response, in CDDP-treated bladder cancer cells, implicating circUGGT2 in the NHEJ pathway for DNA repair.
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Affiliation(s)
- Fang Lyu
- Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, NO.1277 Jiefang Avenue, Wuhan 430022, China
| | - Sihuai Huang
- Department of Urology, The Second Affiliated Hospital of Fujian Medical University, NO.34 North Zhongshan Road, Quanzhou 362000, China
| | - Zhecheng Yan
- Department of Pathology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, NO.1277 Jiefang Avenue, Wuhan 430022, China
| | - Qingliu He
- Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, NO.1277 Jiefang Avenue, Wuhan 430022, China
| | - Chunyu Liu
- Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, NO.1277 Jiefang Avenue, Wuhan 430022, China
| | - Lulin Cheng
- Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, NO.1277 Jiefang Avenue, Wuhan 430022, China
| | - Yukun Cong
- Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, NO.1277 Jiefang Avenue, Wuhan 430022, China
| | - Kang Chen
- Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, NO.1277 Jiefang Avenue, Wuhan 430022, China
| | - Yarong Song
- Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, NO.1277 Jiefang Avenue, Wuhan 430022, China..
| | - Yifei Xing
- Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, NO.1277 Jiefang Avenue, Wuhan 430022, China..
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Lun J, Zhang Y, Yu M, Zhai W, Zhu L, Liu H, Guo J, Zhang G, Qiu W, Fang J. Circular RNA circHIPK2 inhibits colon cancer cells through miR-373-3p/RGMA axis. Cancer Lett 2024; 593:216957. [PMID: 38762192 DOI: 10.1016/j.canlet.2024.216957] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2024] [Revised: 05/08/2024] [Accepted: 05/09/2024] [Indexed: 05/20/2024]
Abstract
Circular RNAs (circRNAs) have been implicated in cancer development. However, their regulation, function, and underlying mechanisms of action remain unclear. We found that circHIPK2 was downregulated in colon cancer, and low expression levels of circHIPK2 were associated with high tumor grade and poor patient survival. The expression of circHIPK2 was observed to be regulated by the transcription factor HOXD10, which was downregulated in colon cancer. Consequently, low circHIPK2 expression promoted colon cancer cell proliferation, migration, and invasion in vitro and tumor growth and metastasis in vivo. Mechanistically, circHIPK2 sponges miR-373-3p to upregulate the expression of the tumor suppressor RGMA, leading to the activation of BMP/Smad signaling and, ultimately, the inhibition of colon cancer cells, indicating that circHIPK2 inhibits colon cancer cells through the miR-373-3p/RGMA/BMP pathway. These findings revealed a previously unknown regulation, function, and underlying mechanism of circHIPK2 in cancer cells. Hence, circHIPK2 may have a prognostic value and serve as a potential target for colon cancer treatment.
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Affiliation(s)
- Jie Lun
- Department of Oncology, The Affiliated Hospital of Qingdao University, Qingdao Cancer Institute, Qingdao University, Qingdao, 266071, China; School of Pharmacy, Qingdao University, Qingdao, 266071, China
| | - Yuying Zhang
- School of Public Health, Qingdao University, Qingdao, 266071, China
| | - Mengchao Yu
- Central Laboratories, Qingdao Municipal Hospital, Qingdao, 266071, China
| | - Wenxin Zhai
- Department of Medical Oncology, Changzheng Hospital, Naval Medical University, 64 Hetian Road, Shanghai, 200072, China
| | - Lei Zhu
- Medical College, Qingdao Binhai University, Qingdao, 266071, China
| | - Huizi Liu
- Department of Rehabilitation Medicine, General Hospital of Central Theater Command, Wuhan, 430070, China
| | - Jing Guo
- Department of Oncology, The Affiliated Hospital of Qingdao University, Qingdao Cancer Institute, Qingdao University, Qingdao, 266071, China
| | - Gang Zhang
- Department of Oncology, The Affiliated Hospital of Qingdao University, Qingdao Cancer Institute, Qingdao University, Qingdao, 266071, China
| | - Wensheng Qiu
- Department of Oncology, The Affiliated Hospital of Qingdao University, Qingdao Cancer Institute, Qingdao University, Qingdao, 266071, China.
| | - Jing Fang
- Department of Oncology, The Affiliated Hospital of Qingdao University, Qingdao Cancer Institute, Qingdao University, Qingdao, 266071, China.
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Ha JH, Radhakrishnan R, Nadhan R, Gomathinayagam R, Jayaraman M, Yan M, Kashyap S, Fung KM, Xu C, Bhattacharya R, Mukherjee P, Isidoro C, Song YS, Dhanasekaran DN. Deciphering a GPCR-lncrna-miRNA nexus: Identification of an aberrant therapeutic target in ovarian cancer. Cancer Lett 2024; 591:216891. [PMID: 38642607 DOI: 10.1016/j.canlet.2024.216891] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2024] [Revised: 03/30/2024] [Accepted: 04/11/2024] [Indexed: 04/22/2024]
Abstract
Ovarian cancer ranks as a leading cause of mortality among gynecological malignancies, primarily due to the lack of early diagnostic tools, effective targeted therapy, and clear understanding of disease etiology. Previous studies have identified the pivotal role of Lysophosphatidic acid (LPA)-signaling in ovarian cancer pathobiology. Our earlier transcriptomic analysis identified Urothelial Carcinoma Associated-1 (UCA1) as an LPA-stimulated long non-coding RNA (lncRNA). In this study, we elucidate the tripartite interaction between LPA-signaling, UCA1, and let-7 miRNAs in ovarian cancer progression. Results show that the elevated expression of UCA1 enhances cell proliferation, invasive migration, and therapy resistance in high-grade serous ovarian carcinoma cells, whereas silencing UCA1 reverses these oncogenic phenotypes. UCA1 expression inversely correlates with survival outcomes and therapy response in ovarian cancer clinical samples, underscoring its prognostic significance. Mechanistically, UCA1 sequesters let-7 miRNAs, effectively neutralizing their tumor-suppressive functions involving key oncogenes such as Ras and c-Myc. More significantly, intratumoral delivery of UCA1-specific siRNAs inhibits the growth of cisplatin-refractory ovarian cancer xenografts, demonstrating the therapeutic potential of targeting LPAR-UCA1-let-7 axis in ovarian cancer. Thus, our results identify LPAR-UCA1-let-7 axis as a novel avenue for targeted treatment strategies.
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Affiliation(s)
- Ji Hee Ha
- Stephenson Cancer Center, The University of Oklahoma Health Sciences Center, Oklahoma City, OK, 73104, USA; Department of Cell Biology, The University of Oklahoma Health Sciences Center, Oklahoma City, OK, 73104, USA
| | | | - Revathy Nadhan
- Stephenson Cancer Center, The University of Oklahoma Health Sciences Center, Oklahoma City, OK, 73104, USA
| | - Rohini Gomathinayagam
- Stephenson Cancer Center, The University of Oklahoma Health Sciences Center, Oklahoma City, OK, 73104, USA
| | - Muralidharan Jayaraman
- Stephenson Cancer Center, The University of Oklahoma Health Sciences Center, Oklahoma City, OK, 73104, USA; Department of Cell Biology, The University of Oklahoma Health Sciences Center, Oklahoma City, OK, 73104, USA
| | - Mingda Yan
- Stephenson Cancer Center, The University of Oklahoma Health Sciences Center, Oklahoma City, OK, 73104, USA
| | - Srishti Kashyap
- Stephenson Cancer Center, The University of Oklahoma Health Sciences Center, Oklahoma City, OK, 73104, USA
| | - Kar-Ming Fung
- Stephenson Cancer Center, The University of Oklahoma Health Sciences Center, Oklahoma City, OK, 73104, USA; Department of Pathology, The University of Oklahoma Health Sciences Center, Oklahoma City, OK, 73104, USA
| | - Chao Xu
- Department of Biostatistics and Epidemiology, The University of Oklahoma Health Sciences Center, Oklahoma City, OK, 73104, USA
| | - Resham Bhattacharya
- Stephenson Cancer Center, The University of Oklahoma Health Sciences Center, Oklahoma City, OK, 73104, USA; Department of Obstetrics and Gynecology, The University of Oklahoma Health Sciences Center, Oklahoma City, OK, 73104, USA
| | - Priyabrata Mukherjee
- Stephenson Cancer Center, The University of Oklahoma Health Sciences Center, Oklahoma City, OK, 73104, USA; Department of Pathology, The University of Oklahoma Health Sciences Center, Oklahoma City, OK, 73104, USA
| | - Ciro Isidoro
- Department of Health Sciences, Università del Piemonte Orientale, Novara, Italy
| | - Yong Sang Song
- Seoul National University, College of Medicine, Seoul, 151-921, South Korea
| | - Danny N Dhanasekaran
- Stephenson Cancer Center, The University of Oklahoma Health Sciences Center, Oklahoma City, OK, 73104, USA; Department of Cell Biology, The University of Oklahoma Health Sciences Center, Oklahoma City, OK, 73104, USA.
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Ye Z, Deng X, Zhang J, Shao R, Song C, Zhao J, Tang H. Causal relationship between immune cells and prostate cancer: a Mendelian randomization study. Front Cell Dev Biol 2024; 12:1381920. [PMID: 38566827 PMCID: PMC10985200 DOI: 10.3389/fcell.2024.1381920] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2024] [Accepted: 03/08/2024] [Indexed: 04/04/2024] Open
Abstract
Introduction Despite the abundance of research indicating the participation of immune cells in prostate cancer development, establishing a definitive cause-and-effect relationship has proven to be a difficult undertaking. Methods This study employs Mendelian randomization (MR), leveraging genetic variables related to immune cells from publicly available genome-wide association studies (GWAS), to investigate this association. The primary analytical method used in this study is inverse variance weighting (IVW) analysis. Comprehensive sensitivity analyses were conducted to assess the heterogeneity and horizontal pleiotropy of the results. Results The study identifies four immune cell traits as causally contributing to prostate cancer risk, including CD127- CD8+ T cell %CD8+ T cell (OR = 1.0042, 95%CI:1.0011-1.0073, p = 0.0077), CD45RA on CD39+ resting CD4 regulatory T cell (OR = 1.0029, 95%CI:1.0008-1.0050, p = 0.0065), CD62L- Dendritic Cell Absolute Count (OR = 1.0016; 95%CI:1.0005-1.0026; p = 0.0039), CX3CR1 on CD14+ CD16- monocyte (OR = 1.0024, 95%CI:1.0007-1.0040, p = 0.0060). Additionally, two immune cell traits are identified as causally protective factors: CD4 on monocyte (OR = 0.9975, 95%CI:0.9958-0.9992, p = 0.0047), FSC-A on plasmacytoid Dendritic Cell (OR = 0.9983, 95%CI:0.9970-0.9995, p = 0.0070). Sensitivity analyses indicated no horizontal pleiotropy. Discussion Our MR study provide evidence for a causal relationship between immune cells and prostate cancer, holding implications for clinical diagnosis and treatment.
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Affiliation(s)
- Zhipeng Ye
- State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-Sen University Cancer Center, Guangzhou, China
| | - Xinpei Deng
- State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-Sen University Cancer Center, Guangzhou, China
| | - Jinhui Zhang
- State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-Sen University Cancer Center, Guangzhou, China
| | - Ruonan Shao
- State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-Sen University Cancer Center, Guangzhou, China
| | - Cailu Song
- State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-Sen University Cancer Center, Guangzhou, China
| | - Jianfu Zhao
- Department of Oncology, The First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Hailin Tang
- State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-Sen University Cancer Center, Guangzhou, China
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Luo W, Li T, Song Q, Zhang L, Cao M. Prognostic value of lncRNA LINC01018 in prostate cancer by regulating miR-182-5p (The role of LINC01018 in prostate cancer). NUCLEOSIDES, NUCLEOTIDES & NUCLEIC ACIDS 2023:1-13. [PMID: 38147366 DOI: 10.1080/15257770.2023.2298408] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Accepted: 12/18/2023] [Indexed: 12/27/2023]
Abstract
LncRNAs are abnormally expressed in a variety of cancers and play unique roles in therapy. Based on this, the prognostic value of lncRNA LINC01018 in prostate cancer was discussed in this study. LINC01018 was underexpressed in prostate cancer tissues and cells, while miR-182-5p was elevated (***p < 0.001). Overexpression of LINC01018 may inhibit the progression of prostate cancer by targeting miR-182-5p. This study revealed that upregulated LINC01018 may prolong the overall survival of patients with prostate cancer (log-rank p = 0.042), and LINC01018 may become a prognostic biomarker for patients with prostate cancer, which brings a new direction for the treatment of patients.
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Affiliation(s)
- Wentao Luo
- Department of Urology Andrology, Sinopharm Dongfeng General Hospital, Hubei University of Medicine, Shiyan, Hubei, China
| | - Tingting Li
- Department of Urology Andrology, Sinopharm Dongfeng General Hospital, Hubei University of Medicine, Shiyan, Hubei, China
| | - Qiong Song
- Department of Urology Andrology, Sinopharm Dongfeng General Hospital, Hubei University of Medicine, Shiyan, Hubei, China
| | - Lixiao Zhang
- Department of Urology Andrology, Sinopharm Dongfeng General Hospital, Hubei University of Medicine, Shiyan, Hubei, China
| | - Min Cao
- Department of Urology Andrology, Sinopharm Dongfeng General Hospital, Hubei University of Medicine, Shiyan, Hubei, China
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Zhu Y, Li J, Zhang P, Peng B, Li C, Ming Y, Liu H. Berberine protects hepatocyte from hypoxia/reoxygenation-induced injury through inhibiting circDNTTIP2. PeerJ 2023; 11:e16080. [PMID: 37780378 PMCID: PMC10538280 DOI: 10.7717/peerj.16080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Accepted: 08/21/2023] [Indexed: 10/03/2023] Open
Abstract
Background During hepatic ischemia-reperfusion injury, the excessive release of inflammatory cytokines can activate the intracellular signal transduction cascade to induce hepatocyte injury. Apoptosis is an important way of cell death after I/R injury. Berberine, a common quaternary ammonium alkaloid, has anti-inflammatory, anti-oxidative stress, and anti-apoptotic effects. An increasing number of studies have revealed the importance of non-coding RNAs, including microRNA, long non-coding RNAs and circular RNAs (circRNAs), as regulators of the effects of berberine. Purpose In this study, we investigated the mechanism of berberine against liver ischemia-reperfusion injury in vitro. Study Design and Methods In this study, hypoxia-reoxygenation (H/R)-treated L02 cells were pretreated with berberine to study the role and mechanism of berberine in resisting hepatic ischemia-reperfusion injury. Results The results show that berberine pre-treatment increased the cell viability of H/R-challenged cells, reduced H/R-induced apoptosis and ROS production, reversed H/R-increased on IL-6, IL-1β, TNF-α, and H/R-decreased IL-10 expression. Mechanically, berberine protect hepatocyte from H/R injury, at least partially, through circDNTTIP2. In addition, circDNTTIP2 can bind to the TATA box of caspase3 promoter, thereby promoting caspase 3-related cell apoptosis and the release of inflammatory cytokines. Conclusion This study found that berberine has a protective effect on H/R-induced hepatocyte damage by inhibiting a novel circRNA, circDNTTIP2. This study provides potential treatment strategies and treatment targets for liver ischemia-reperfusion injury.
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Affiliation(s)
- Yi Zhu
- The Third Xiangya Hospital, Central South University, Changsha, China
- Engineering and Technology Research Center for Transplantation Medicine of National Health Commission, Changsha, China
| | - Junhui Li
- The Third Xiangya Hospital, Central South University, Changsha, China
- Engineering and Technology Research Center for Transplantation Medicine of National Health Commission, Changsha, China
| | - Pengpeng Zhang
- The Third Xiangya Hospital, Central South University, Changsha, China
- Engineering and Technology Research Center for Transplantation Medicine of National Health Commission, Changsha, China
| | - Bo Peng
- The Third Xiangya Hospital, Central South University, Changsha, China
- Engineering and Technology Research Center for Transplantation Medicine of National Health Commission, Changsha, China
| | - Cai Li
- The Third Xiangya Hospital, Central South University, Changsha, China
- Engineering and Technology Research Center for Transplantation Medicine of National Health Commission, Changsha, China
| | - Yingzi Ming
- The Third Xiangya Hospital, Central South University, Changsha, China
- Engineering and Technology Research Center for Transplantation Medicine of National Health Commission, Changsha, China
| | - Hong Liu
- The Third Xiangya Hospital, Central South University, Changsha, China
- Engineering and Technology Research Center for Transplantation Medicine of National Health Commission, Changsha, China
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