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Duan M, Liu H, Xu S, Yang Z, Zhang F, Wang G, Wang Y, Zhao S, Jiang X. IGF2BPs as novel m 6A readers: Diverse roles in regulating cancer cell biological functions, hypoxia adaptation, metabolism, and immunosuppressive tumor microenvironment. Genes Dis 2024; 11:890-920. [PMID: 37692485 PMCID: PMC10491980 DOI: 10.1016/j.gendis.2023.06.017] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Revised: 03/24/2023] [Accepted: 06/14/2023] [Indexed: 09/12/2023] Open
Abstract
m6A methylation is the most frequent modification of mRNA in eukaryotes and plays a crucial role in cancer progression by regulating biological functions. Insulin-like growth factor 2 mRNA-binding proteins (IGF2BP) are newly identified m6A 'readers'. They belong to a family of RNA-binding proteins, which bind to the m6A sites on different RNA sequences and stabilize them to promote cancer progression. In this review, we summarize the mechanisms by which different upstream factors regulate IGF2BP in cancer. The current literature analyzed here reveals that the IGF2BP family proteins promote cancer cell proliferation, survival, and chemoresistance, inhibit apoptosis, and are also associated with cancer glycolysis, angiogenesis, and the immune response in the tumor microenvironment. Therefore, with the discovery of their role as 'readers' of m6A and the characteristic re-expression of IGF2BPs in cancers, it is important to elucidate their mechanism of action in the immunosuppressive tumor microenvironment. We also describe in detail the regulatory and interaction network of the IGF2BP family in downstream target RNAs and discuss their potential clinical applications as diagnostic and prognostic markers, as well as recent advances in IGF2BP biology and associated therapeutic value.
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Affiliation(s)
- Meiqi Duan
- Department of General Surgery, The Fourth Affiliated Hospital of China Medical University, Shenyang, Liaoning 110032, China
| | - Haiyang Liu
- Department of General Surgery, The Fourth Affiliated Hospital of China Medical University, Shenyang, Liaoning 110032, China
| | - Shasha Xu
- Department of Gastroendoscopy, The Fourth Affiliated Hospital of China Medical University, Shenyang, Liaoning 110032, China
| | - Zhi Yang
- Department of General Surgery, The Fourth Affiliated Hospital of China Medical University, Shenyang, Liaoning 110032, China
| | - Fusheng Zhang
- Department of General Surgery, The Fourth Affiliated Hospital of China Medical University, Shenyang, Liaoning 110032, China
| | - Guang Wang
- Department of General Surgery, The Fourth Affiliated Hospital of China Medical University, Shenyang, Liaoning 110032, China
| | - Yutian Wang
- Department of General Surgery, The Fourth Affiliated Hospital of China Medical University, Shenyang, Liaoning 110032, China
| | - Shan Zhao
- Department of Rheumatology and Immunology, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning 110002, China
| | - Xiaofeng Jiang
- Department of General Surgery, The Fourth Affiliated Hospital of China Medical University, Shenyang, Liaoning 110032, China
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Zhao Y, Huang J, Zhao K, Li M, Wang S. Ubiquitination and deubiquitination in the regulation of N 6-methyladenosine functional molecules. J Mol Med (Berl) 2024; 102:337-351. [PMID: 38289385 DOI: 10.1007/s00109-024-02417-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2023] [Revised: 10/17/2023] [Accepted: 01/09/2024] [Indexed: 02/21/2024]
Abstract
N6 methyladenosine (m6A) is the most prevalent RNA epigenetic modification, regulated by methyltransferases and demethyltransferases and recognized by methylation-related reading proteins to impact mRNA splicing, translocation, stability, and translation efficiency. It significantly affects a variety of activities, including stem cell maintenance and differentiation, tumor formation, immune regulation, and metabolic disorders. Ubiquitination refers to the specific modification of target proteins by ubiquitin molecule in response to a series of enzymes. E3 ligases connect ubiquitin to target proteins and usually lead to protein degradation. On the contrary, deubiquitination induced by deubiquitinating enzymes (DUBs) can separate ubiquitin and regulate the stability of protein. Recent studies have emphasized the potential importance of ubiquitination and deubiquitination in controlling the function of m6A modification. In this review, we discuss the impact of ubiquitination and deubiquitination on m6A functional molecules in diseases, such as metabolism, cellular stress, and tumor growth.
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Affiliation(s)
- Yue Zhao
- Department of Laboratory Medicine, Affiliated Hospital, Jiangsu University, Jiefang Road No 438, Zhenjiang, 212002, China
- Department of Immunology, Jiangsu Key Laboratory of Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, China
| | - Jiaojiao Huang
- Department of Immunology, Jiangsu Key Laboratory of Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, China
| | - Kexin Zhao
- Department of Immunology, Jiangsu Key Laboratory of Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, China
| | - Min Li
- Department of Immunology, Jiangsu Key Laboratory of Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, China
| | - Shengjun Wang
- Department of Laboratory Medicine, Affiliated Hospital, Jiangsu University, Jiefang Road No 438, Zhenjiang, 212002, China.
- Department of Immunology, Jiangsu Key Laboratory of Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, China.
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Wang Y, Wang Y, Wu C, Ji Y, Hou P, Wu X, Li Z, Li M, Chu S, Ning Q, Xu B, Zheng J, Bai J. circEPB41L2 blocks the progression and metastasis in non-small cell lung cancer by promoting TRIP12-triggered PTBP1 ubiquitylation. Cell Death Discov 2024; 10:72. [PMID: 38341427 DOI: 10.1038/s41420-024-01836-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Revised: 01/23/2024] [Accepted: 01/29/2024] [Indexed: 02/12/2024] Open
Abstract
The metastasis of non-small cell lung cancer (NSCLC) is the leading death cause of NSCLC patients, which requires new biomarkers for precise diagnosis and treatment. Circular RNAs (circRNAs), the novel noncoding RNA, participate in the progression of various cancers as microRNA or protein sponges. We revealed the mechanism by which circEPB41L2 (hsa_circ_0077837) blocks the aerobic glycolysis, progression and metastasis of NSCLC through modulating protein metabolism of PTBP1 by the E3 ubiquitin ligase TRIP12. With ribosomal RNA-depleted RNA seq, 57 upregulated and 327 downregulated circRNAs were identified in LUAD tissues. circEPB41L2 was selected due to its dramatically reduced levels in NSCLC tissues and NSCLC cells. Interestingly, circEPB41L2 blocked glucose uptake, lactate production, NSCLC cell proliferation, migration and invasion in vitro and in vivo. Mechanistically, acting as a scaffold, circEPB41L2 bound to the RRM1 domain of the PTBP1 and the E3 ubiquitin ligase TRIP12 to promote TRIP12-mediated PTBP1 polyubiquitylation and degradation, which could be reversed by the HECT domain mutation of TRIP12 and circEPB41L2 depletion. As a result, circEPB41L2-induced PTBP1 inhibition led to PTBP1-induced PKM2 and Vimentin activation but PKM1 and E-cadherin inactivation. These findings highlight the circEPB41L2-dependent mechanism that modulates the "Warburg Effect" and EMT to inhibit NSCLC development and metastasis, offering an inhibitory target for NSCLC treatment.
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Affiliation(s)
- Yan Wang
- Cancer Institute, Xuzhou Medical University, Xuzhou, Jiangsu, China
- Jiangsu Center for the Collaboration and Innovation of Cancer Biotherapy, Cancer Institute, Xuzhou Medical University, Xuzhou, Jiangsu, China
- Center of Clinical Oncology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China
- Department of Pharmacy, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy of Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Yihao Wang
- Cancer Institute, Xuzhou Medical University, Xuzhou, Jiangsu, China
- Department of Pharmacy, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy of Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Chunjie Wu
- Cancer Institute, Xuzhou Medical University, Xuzhou, Jiangsu, China
- Department of Pharmacy, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy of Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Yunfei Ji
- Center of Clinical Oncology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Pingfu Hou
- Cancer Institute, Xuzhou Medical University, Xuzhou, Jiangsu, China
- Jiangsu Center for the Collaboration and Innovation of Cancer Biotherapy, Cancer Institute, Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Xueqing Wu
- Department of Pharmacy, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy of Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Zhongwei Li
- Cancer Institute, Xuzhou Medical University, Xuzhou, Jiangsu, China
- Jiangsu Center for the Collaboration and Innovation of Cancer Biotherapy, Cancer Institute, Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Minle Li
- Cancer Institute, Xuzhou Medical University, Xuzhou, Jiangsu, China
- Jiangsu Center for the Collaboration and Innovation of Cancer Biotherapy, Cancer Institute, Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Sufang Chu
- Cancer Institute, Xuzhou Medical University, Xuzhou, Jiangsu, China
- Jiangsu Center for the Collaboration and Innovation of Cancer Biotherapy, Cancer Institute, Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Qianqian Ning
- Cancer Institute, Xuzhou Medical University, Xuzhou, Jiangsu, China
- Jiangsu Center for the Collaboration and Innovation of Cancer Biotherapy, Cancer Institute, Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Bo Xu
- Cancer Institute, Xuzhou Medical University, Xuzhou, Jiangsu, China.
- Jiangsu Center for the Collaboration and Innovation of Cancer Biotherapy, Cancer Institute, Xuzhou Medical University, Xuzhou, Jiangsu, China.
| | - Junnian Zheng
- Cancer Institute, Xuzhou Medical University, Xuzhou, Jiangsu, China.
- Jiangsu Center for the Collaboration and Innovation of Cancer Biotherapy, Cancer Institute, Xuzhou Medical University, Xuzhou, Jiangsu, China.
- Center of Clinical Oncology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China.
| | - Jin Bai
- Cancer Institute, Xuzhou Medical University, Xuzhou, Jiangsu, China.
- Jiangsu Center for the Collaboration and Innovation of Cancer Biotherapy, Cancer Institute, Xuzhou Medical University, Xuzhou, Jiangsu, China.
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Li J, Cao H, Yang J, Wang B. IGF2BP2-m6A-circMMP9 axis recruits ETS1 to promote TRIM59 transcription in laryngeal squamous cell carcinoma. Sci Rep 2024; 14:3014. [PMID: 38321126 PMCID: PMC10847447 DOI: 10.1038/s41598-024-53422-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Accepted: 01/31/2024] [Indexed: 02/08/2024] Open
Abstract
Laryngeal squamous cell carcinoma (LSCC) is a common malignancy of the head and neck. Recently, circular RNA (circRNA) has been studied extensively in multisystem diseases. However, there are few research on biological functions and molecular mechanisms of circRNAs in LSCC. CircRNA array was used to detect the differentially expressed circRNAs. Kaplan-Meier and cox regression analysis were used to identify survival based on circMMP9. The qRT-PCR, RNase R treatment, sanger sequencing and in situ hybridization were used to verify circMMP9 expression, characteristics and localization in LSCC tissues and cells. Functionally, colony formation, MTS, transwell and in vivo assays were proceeded to detect the biological function of circMMP9 in LSCC progression. The RNA-seq was conducted to identify the molecular targets of circMMP9. Mechanically, MeRIP, RNA Immunoprecipitation (RIP), RNA pulldown, Chromatin immunoprecipitation (ChIP) and dual-luciferase reporter assays were carried on to verify the regulatory mechanism of circMMP9. CircMMP9 was discovered upregulated in LSCC tissues and cells, and high level of circMMP9 was associated with poor prognosis, low degree of pathological grading, high TNM stage and lymph node metastasis of LSCC. CircMMP9 knockdown prevented LSCC progression both in vitro and in vivo, whereas, circMMP9 overexpression had the opposite effect. CircMMP9 was stabilized by IGF2BP2 in m6A-dependent manner. TRIM59 was identified as downstream target of circMMP9. CircMMP9 recruited ETS1 to stimulate TRIM59 transcription. Moreover, TRIM59 accelerated LSCC progression via activating the PI3K/AKT signal pathway. Our findings offered a unique regulatory mechanism for circMMP9 in LSCC, as well as a novel proof that circMMP9 may be utilize as a diagnostic marker and therapeutic target for LSCC patients.
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Affiliation(s)
- Jinling Li
- Department of Otorhinolaryngology, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Huan Cao
- Department of Otorhinolaryngology, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Jianwang Yang
- Department of Otorhinolaryngology, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Baoshan Wang
- Department of Otorhinolaryngology, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei, China.
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Zhang B, Qian R, Li X. METTL3 suppresses invasion of lung cancer via SH3BP5 m6A modification. Arch Biochem Biophys 2024; 752:109876. [PMID: 38141906 DOI: 10.1016/j.abb.2023.109876] [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: 07/14/2023] [Revised: 12/08/2023] [Accepted: 12/18/2023] [Indexed: 12/25/2023]
Abstract
The metastasis of lung cancer poses a major clinical challenge, and m6A modification has been implicated in regulating the invasive capabilities of tumor cells. However, the mechanisms underlying m6A modification in lung cancer metastasis are not well understood. This study aims to explore the biological functions and molecular mechanisms of methyltransferase-like 3 (METTL3) in lung cancer. In this study, METTL3 were found to be downregulated in lung cancer tissues. Functionally, METTL3 inhibited the migration and invasion abilities of lung cancer cells in vitro. Furthermore, SH3 domain binding protein 5 (SH3BP5) was identified as a downstream target of METTL3. Overexpression of SH3BP5 suppressed the invasive capacity of lung cancer cells, and this regulation was m6A-dependent. Finally, we discovered that YTH N6-methyladenosine RNA binding protein F1 (YTHDF1) mediated stability is responsible for maintaining the m6A modification of SH3BP5 mRNA. Overall, our study provides insights into the critical role of METTL3-mediated m6A modification and m6A-dependent regulatory mechanisms in the progression of human lung cancer. We demonstrated that METTL3 regulates the mRNA stability of SH3BP5 in a YTHDF1-dependent manner, thereby impacting the invasive capacity of lung cancer cells.
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Affiliation(s)
- Binbin Zhang
- Department of Thoracic Surgery, The Affiliated Cancer Hospital of Zhengzhou University & Henan Cancer Hospital, PR China; Department of Thoracic Surgery, Henan Provincial Chest Hospital, Zhengzhou University, Zhengzhou, 450000, China
| | - Rulin Qian
- Department of Thoracic Surgery, Henan Provincial Chest Hospital, Zhengzhou University, Zhengzhou, 450000, China
| | - Xiangnan Li
- Department of Thoracic Surgery, The Affiliated Cancer Hospital of Zhengzhou University & Henan Cancer Hospital, PR China; Department of Thoracic Surgery, The First Affiliated Hospital of Zhengzhou University, PR China.
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56
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Liu Y, Zhang S, Gao X, Ru Y, Gu X, Hu X. Research progress of N1-methyladenosine RNA modification in cancer. Cell Commun Signal 2024; 22:79. [PMID: 38291517 PMCID: PMC10826226 DOI: 10.1186/s12964-023-01401-z] [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: 10/14/2023] [Accepted: 11/16/2023] [Indexed: 02/01/2024] Open
Abstract
N1-methyladenosine (m1A) is a post-transcriptionally modified RNA molecule that plays a pivotal role in the regulation of various biological functions and activities. Especially in cancer cell invasion, proliferation and cell cycle regulation. Over recent years, there has been a burgeoning interest in investigating the m1A modification of RNA. Most studies have focused on the regulation of m1A in cancer enrichment areas and different regions. This review provides a comprehensive overview of the methodologies employed for the detection of m1A modification. Furthermore, this review delves into the key players in m1A modification, known as the "writers," "erasers," and "readers." m1A modification is modified by the m1A methyltransferases, or writers, such as TRMT6, TRMT61A, TRMT61B, TRMT10C, NML, and, removed by the demethylases, or erasers, including FTO and ALKBH1, ALKBH3. It is recognized by m1A-binding proteins YTHDF1, TYHDF2, TYHDF3, and TYHDC1, also known as "readers". Additionally, we explore the intricate relationship between m1A modification and its regulators and their implications for the development and progression of specific types of cancer, we discuss how m1A modification can potentially facilitate the discovery of novel approaches for cancer diagnosis, treatment, and prognosis. Our summary of m1A methylated adenosine modification detection methods and regulatory mechanisms in various cancers provides useful insights for cancer diagnosis, treatment, and prognosis. Video Abstract.
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Affiliation(s)
- Yafeng Liu
- Department of Infectious Diseases, The First Affiliated Hospital, College of Clinical Medicine, Henan University of Science and Technology, Luoyang, No. 24 Jinghua Road, Jianxi District, 471000, Henan, China
| | - Shujun Zhang
- Department of Infectious Diseases, The First Affiliated Hospital, College of Clinical Medicine, Henan University of Science and Technology, Luoyang, No. 24 Jinghua Road, Jianxi District, 471000, Henan, China
| | - Xiaohui Gao
- Department of Oncology, The First Affiliated Hospital, College of Clinical Medicine, Henan University of Science and Technology, Luoyang, No. 24 Jinghua Road, Jianxi District, 471000, Henan, China
| | - Yi Ru
- Hepatobiliary Pancreatic Surgery, The First Affiliated Hospital, College of Clinical Medicine, Henan University of Science and Technology, Luoyang, 471000, Henan, China
| | - Xinyu Gu
- Department of Oncology, The First Affiliated Hospital, College of Clinical Medicine, Henan University of Science and Technology, Luoyang, No. 24 Jinghua Road, Jianxi District, 471000, Henan, China.
| | - Xinjun Hu
- Department of Infectious Diseases, The First Affiliated Hospital, College of Clinical Medicine, Henan University of Science and Technology, Luoyang, No. 24 Jinghua Road, Jianxi District, 471000, Henan, China.
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Xu Y, Xu T, Huang Y, Wan J, Jiang Z. Silencing hsa_circ_0032449 inhibits the pancreatic differentiation of human embryonic stem cells via the hsa_miR-195-5p/CCND1/PI3K/AKT signaling pathway. Exp Cell Res 2024; 434:113879. [PMID: 38072304 DOI: 10.1016/j.yexcr.2023.113879] [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: 09/25/2023] [Revised: 12/02/2023] [Accepted: 12/05/2023] [Indexed: 12/17/2023]
Abstract
Stem cell-derived β cells (SC-β cells) differentiated from stem cell-derived pancreatic progenitor (PP) cells are promising tools for enabling normal glucose control of islet transplants and have therapeutic potential for type 1 diabetes treatment. Pancreatic specification is essential for SC-β cell induction in vitro and low-quality PP cells may convert into derivatives of non-pancreatic lineages both in vivo and in vitro, impeding PP-derived β cell safety and differentiation efficiency. Circular RNA (circRNA) commonly determines the fate of stem cells by acting as competing endogenous RNA (ceRNA). Currently, the relationships between endogenous circRNA and pancreatic specification remain elusive. Herein, we used whole transcriptome sequencing analysis and functional experiments to reveal that deficiency of hsa_circ_0032449 resulted in posterior foregut-derived PP cells with a weakened the progenitor state with decreased expression of PDX1, NKX6.1 and CCND1. As differentiation processed into maturation, silencing of hsa_circ_0032449 suppressed PP cell development into functionally mature and glucose-responsive SC-β cells. These SC-β cells exhibited lower serum C-peptide levels compared with those of control groups in nude mice and had difficulties in reversing hyperglycemia in STZ-induced diabetic nude mice. Mechanistically, loss of hsa_circ_0032449 participated in PI3K-AKT signaling transduction by acting as a ceRNA to sponge miR-195-5p and by influencing the expression of the downstream target CCND1 at transcription and translation levels. Overall, our findings identified hsa_circ_0032449 as an essential PP cell-fate specification regulator, indicating a promising potential in clinical applications and basic research.
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Affiliation(s)
- Yang Xu
- Center of Gallbladder Disease, Shanghai East Hospital, Institute of Gallstone Disease, School of Medicine, Tongji University, Shanghai 200092, China
| | - Tianxin Xu
- Department of Hepatobiliary and Pancreatic Surgery, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong 226001, China; Research Center of Clinical Medicine, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong 226001, China
| | - Yan Huang
- Department of Hepatobiliary and Pancreatic Surgery, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong 226001, China; Research Center of Clinical Medicine, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong 226001, China
| | - Jian Wan
- Department of Hepatobiliary and Pancreatic Surgery, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong 226001, China; Research Center of Clinical Medicine, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong 226001, China.
| | - Zhaoyan Jiang
- Center of Gallbladder Disease, Shanghai East Hospital, Institute of Gallstone Disease, School of Medicine, Tongji University, Shanghai 200092, China.
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Fu X, Song L, Chen L, Jin S, Duan Z, Zhang B, Xing Y, Wang Y. Mechanistic insights into aniline-induced liver injury: Role of the mmu_circ_26984/Myh9/NLRP3 axis and modulation by N-acetylcysteine. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 270:115826. [PMID: 38118330 DOI: 10.1016/j.ecoenv.2023.115826] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2023] [Revised: 11/16/2023] [Accepted: 12/11/2023] [Indexed: 12/22/2023]
Abstract
Aniline is a widely used chemical. Chronic or high-dose exposure to aniline can lead to hepatocellular damage. Although the hepatic pathogenicity of aniline has been established in previous studies, studies involving pathogenic genes during aniline-induced liver injury are limited. Our study first discovered and identified the role and mechanism underlying a new circRNA mmu_circ_26984 in aniline-induced chemical liver injury. Further, we discuss the protective effect of N-acetylcysteine (NAC) in this pathway. After constructing in vitro and in vivo models of aniline treatment, we screened the circRNA with significant differences in expression in AML12 cells from control and aniline-treated groups by circRNA microarray analysis. Next, using RNA pulldown, liquid chromatography-mass spectrometry (LC-MS), and RNA immunoprecipitation, we analyzed the relationship between mmu_circ_26984 and myosin heavy chain 9 (Myh9). Subsequently, we determined the specific mechanism of action of mmu_circ_26984 and Myh9 in aniline-induced liver injury and the protective effect of NAC against aniline-induced liver injury process using Cell Counting Kit-8, Western blot, RNA extraction, a reverse transcription quantitative polymerase chain reaction (RT-qPCR), fluorescence in situ hybridization, immunohistochemistry, and immunofluorescence. The expression of mmu_circ_26984 was significantly increased in liver tissues and AML12 cells of aniline-treated mice compared with the control group. This high expression of mmu_circ_26984 increased the expression of injury-related inflammatory factors, such as NLRP3, Caspase-1, IL-18, and IL-1β in vivo and ex vivo, which exacerbated the level of liver injury. The interaction of mmu_circ_26984 with Myh9 also affected the course of liver injury. Mmu_circ_26984 overexpression and reduced treatment affected the levels of Myh9 expression in AML12 cells, as well as downstream inflammatory factors associated with injury, such as NLRP3. In addition, NAC reduced the process of liver injury mediated by the mmu_circ_26984/Myh9/NLRP3 axis. In conclusion, mmu_circ_26984 is a potential molecular marker and therapeutic target in the process of aniline-induced liver injury that can mediate aniline-exposure-induced liver injury via modulation of the mmu_circ_26984/Myh9/NLRP3 axis, and NAC can effectively attenuate the effect of this liver injury.
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Affiliation(s)
- Xinyu Fu
- College of Public Health, Harbin Medical University, 157 Baojian Road, Harbin 150086, China
| | - Li Song
- Department of Occupational Poisoning, Occupational Disease Research Institute of Heilongjiang Province, Harbin 150010, China
| | - Lili Chen
- College of Public Health, Harbin Medical University, 157 Baojian Road, Harbin 150086, China
| | - Shuo Jin
- College of Public Health, Harbin Medical University, 157 Baojian Road, Harbin 150086, China
| | - Zhongliang Duan
- College of Public Health, Harbin Medical University, 157 Baojian Road, Harbin 150086, China
| | - Bo Zhang
- College of Public Health, Harbin Medical University, 157 Baojian Road, Harbin 150086, China
| | - Yuechen Xing
- College of Public Health, Harbin Medical University, 157 Baojian Road, Harbin 150086, China
| | - Yue Wang
- College of Public Health, Harbin Medical University, 157 Baojian Road, Harbin 150086, China.
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Chen J, Rao B, Huang Z, Xie C, Yu Y, Yang B, Wu D, Wang D, Qiu F, Zhou Y, Deng Y, Lu J. Circular RNA hsa_circ_0050386 suppresses non-small cell lung cancer progression via regulating the SRSF3/FN1 axis. J Transl Med 2024; 22:47. [PMID: 38216996 PMCID: PMC10785521 DOI: 10.1186/s12967-023-04812-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Accepted: 12/17/2023] [Indexed: 01/14/2024] Open
Abstract
BACKGROUND Lung cancer is the most prevalent cancer worldwide, with non-small cell lung cancer (NSCLC) accounting for 85% of all cases. Circular RNAs(circRNA) play crucial roles in regulating the progression of lung cancer. Despite the identification of a large number of circRNAs, their expression patterns, functions, and mechanisms of action in NSCLC development remain unclear.This study aims to investigate the transcriptional expressions, functions, and potential mechanisms of circRNA hsa_circ_0050386 in NSCLC. METHODS Quantitative real-time polymerase chain reaction (qRT-PCR) was utilized for the analysis of hsa_circ_0050386 expression. Cell proliferation was detected using the IncuCyte Live Cell Analysis System and clone formation assays. Migration and invasion of NSCLC cells were evaluated through Transwell assays. Flow cytometry was performed to assay cell cycle and apoptosis. Western blot was used to investigate protein expression. Protein binding analysis was conducted by employing pull-down assays, RNA immunoprecipitation (RIP), and mass spectrometry. The role of hsa_circ_0050386 in vivo was evaluated through the use of a xenograft model. RESULTS The study discovered that hsa_circ_0050386 displayed lower expression levels in NSCLC tissues when compared to adjacent normal tissues. Patients exhibiting lower levels of hsa_circ_0050386 expression exhibited an inverse correlation with the Clinical Stage, T-stage, and M-stage of NSCLC. Functionally, hsa_circ_0050386 suppressed the proliferation and invasion of NSCLC cells both in vitro and in vivo. A comprehensive examination exposed the interaction between hsa_circ_0050386 and RNA binding protein Serine and arginine-rich splicing factor 3 (SRSF3), resulting in the down-regulation of Fibronectin 1 (FN1) expression, which inhibits the progression of NSCLC. CONCLUSIONS Our study shows that hsa_circ_0050386 suppresses the malignant biological behavior of NSCLC cells by down-regulating the expression of FN1, and may serve as a potential biomarker and therapeutic target for NSCLC treatment.
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Affiliation(s)
- Jinbin Chen
- The State Key Lab of Respiratory Disease, The School of Public Health, Guangzhou Medical University, Guangzhou, 511436, China
- Guangzhou Key Laboratory for Clinical Rapid Diagnosis and Early Warning of Infectious Diseases, KingMed School of Laboratory Medicine, Guangzhou Medical University, Guangzhou, 510180, China
| | - Boqi Rao
- The State Key Lab of Respiratory Disease, The School of Public Health, Guangzhou Medical University, Guangzhou, 511436, China
| | - Zeqin Huang
- The State Key Lab of Respiratory Disease, The School of Public Health, Guangzhou Medical University, Guangzhou, 511436, China
| | - Chen Xie
- The State Key Lab of Respiratory Disease, The School of Public Health, Guangzhou Medical University, Guangzhou, 511436, China
| | - Yonghui Yu
- The State Key Lab of Respiratory Disease, The School of Public Health, Guangzhou Medical University, Guangzhou, 511436, China
| | - Binyao Yang
- Department of Central Laboratory, The 5th Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510700, China
| | - Di Wu
- Guangzhou Center for Disease Control and Prevention, Guangzhou, 510440, China
| | - Dedong Wang
- Guangzhou Center for Disease Control and Prevention, Guangzhou, 510440, China
| | - Fuman Qiu
- The State Key Lab of Respiratory Disease, The School of Public Health, Guangzhou Medical University, Guangzhou, 511436, China
| | - Yifeng Zhou
- Department of Genetics, Medical College of Soochow University, Suzhou, 215123, China
| | - Yibin Deng
- Centre for Medical Laboratory Science, the Affiliated Hospital of Youjiang Medical University for Nationalities, No. 18 Zhongshaner Rd., Youjiang District, Baise, 533000, China.
| | - Jiachun Lu
- The State Key Lab of Respiratory Disease, The First Affiliated Hospital, The School of Public Health, Guangzhou Medical University, Xinzao Town, Panyu District, Guangzhou, 511436, China.
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Zhou C, Li W, Liang Z, Wu X, Cheng S, Peng J, Zeng K, Li W, Lan P, Yang X, Xiong L, Zeng Z, Zheng X, Huang L, Fan W, Liu Z, Xing Y, Kang L, Liu H. Mutant KRAS-activated circATXN7 fosters tumor immunoescape by sensitizing tumor-specific T cells to activation-induced cell death. Nat Commun 2024; 15:499. [PMID: 38216551 PMCID: PMC10786880 DOI: 10.1038/s41467-024-44779-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Accepted: 01/05/2024] [Indexed: 01/14/2024] Open
Abstract
Mutant KRAS (KRASMUT) is often exploited by cancers to shape tumor immunity, but the underlying mechanisms are not fully understood. Here we report that tumor-specific cytotoxic T lymphocytes (CTLs) from KRASMUT cancers are sensitive to activation-induced cell death (AICD). circATXN7, an NF-κB-interacting circular RNA, governs T cell sensitivity to AICD by inactivating NF-κB. Mechanistically, histone lactylation derived from KRASMUT tumor cell-produced lactic acid directly activates transcription of circATXN7, which binds to NF-κB p65 subunit and masks the p65 nuclear localization signal motif, thereby sequestering it in the cytoplasm. Clinically, circATXN7 upregulation in tumor-specific CTLs correlates with adverse clinical outcomes and immunotherapeutic resistance. Genetic ablation of circAtxn7 in CD8+ T cells leads to mutant-selective tumor inhibition, while also increases anti-PD1 efficacy in multiple tumor models in female mice. Furthermore, targeting circATXN7 in adoptively transferred tumor-reactive CTLs improves their antitumor activities. These findings provide insight into how lymphocyte-expressed circRNAs contribute to T-cell fate decisions and anticancer immunotherapies.
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Affiliation(s)
- Chi Zhou
- Department of Colorectal Surgery, Sun Yat-sen University Cancer Center, Guangzhou, China
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
- State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Wenxin Li
- Department of General Surgery (Colorectal Surgery), The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
- Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
- Biomedical Innovation Center, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Zhenxing Liang
- Department of General Surgery (Colorectal Surgery), The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
- Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
- Biomedical Innovation Center, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Xianrui Wu
- Department of General Surgery (Colorectal Surgery), The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
- Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
- Biomedical Innovation Center, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Sijing Cheng
- Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Jianhong Peng
- Department of Colorectal Surgery, Sun Yat-sen University Cancer Center, Guangzhou, China
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
- State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Kaixuan Zeng
- Precision Medical Research Institute, the Second Affiliated Hospital of Xi' an Jiaotong University, Xi'an, China
| | - Weihao Li
- Department of Colorectal Surgery, Sun Yat-sen University Cancer Center, Guangzhou, China
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
- State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Ping Lan
- Department of General Surgery (Colorectal Surgery), The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
- Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
- Biomedical Innovation Center, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Xin Yang
- Department of General Surgery (Colorectal Surgery), The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
- Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
- Biomedical Innovation Center, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Li Xiong
- Department of General Surgery (Colorectal Surgery), The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
- Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
- Biomedical Innovation Center, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Ziwei Zeng
- Department of General Surgery (Colorectal Surgery), The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
- Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
- Biomedical Innovation Center, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Xiaobin Zheng
- Department of General Surgery (Colorectal Surgery), The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
- Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
- Biomedical Innovation Center, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Liang Huang
- Department of General Surgery (Colorectal Surgery), The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
- Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
- Biomedical Innovation Center, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Wenhua Fan
- Department of Colorectal Surgery, Sun Yat-sen University Cancer Center, Guangzhou, China
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
- State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Zhanzhen Liu
- Department of General Surgery (Colorectal Surgery), The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
- Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
- Biomedical Innovation Center, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Yue Xing
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China.
- Breast Tumor Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China.
| | - Liang Kang
- Department of General Surgery (Colorectal Surgery), The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China.
- Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China.
- Biomedical Innovation Center, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China.
| | - Huashan Liu
- Department of General Surgery (Colorectal Surgery), The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China.
- Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China.
- Biomedical Innovation Center, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China.
- Guangdong Provincial Key Laboratory of Digestive Cancer Research, the Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen, Guangdong, China.
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Xu Z, Zheng L, Li S. Paclitaxel-induced inhibition of NSCLC invasion and migration via RBFOX3-mediated circIGF1R biogenesis. Sci Rep 2024; 14:774. [PMID: 38191906 PMCID: PMC10774373 DOI: 10.1038/s41598-024-51500-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Accepted: 01/05/2024] [Indexed: 01/10/2024] Open
Abstract
We previously reported that circIGF1R is significantly downregulated in non-small cell lung cancer (NSCLC) cells and tissues. It inhibits cancer cell invasion and migration, although the underlying molecular mechanisms remain elusive. The invasion and migration of NSCLC cells was analyzed by routine in vivo and in vitro functional assays. Fluorescent in situ hybridization, luciferase reporter assay, RNA pull-down assay and RNA immunoprecipitation (RIP) assay were performed to explore the molecular mechanisms. Mechanism of action of paclitaxel-induced RBFOX3-mediated inhibition of NSCLC invasion and migration was investigated through in vitro and in vivo experiments.Our study reveals that circIGF1R acts as a Competing Endogenous RNA (ceRNA) for miR-1270, thereby regulating Van-Gogh-like 2 (VANGL2) expression and subsequently inhibiting NSCLC cell invasion and migration via the Wnt pathway. We also found that RNA binding protein fox-1 homolog 3 (RBFOX3) enhances circIGF1R biogenesis by binding to IGF1R pre-mRNA, which in turn suppresses migration and invasion in NSCLC cells. Additionally, the chemotherapeutic drug paclitaxel was shown to impede NSCLC invasion and migration by inducing RBFOX3-mediated circIGF1R biogenesis.RBFOX3 inhibits the invasion and migration of NSCLC cells through the circIGF1R/ miR-1270/VANGL2 axis, circIGF1R has the potential to serve as a biomarker and therapeutic target for NSCLC.
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Affiliation(s)
- Zhanyu Xu
- Department of Thoracic and Cardiovascular Surgery, The First Affiliated Hospital of Guangxi Medical University, Nanning, 530021, Guangxi Zhuang Autonomous Region, People's Republic of China
| | - Liping Zheng
- Department of Anesthesia Catheter Room, The First Affiliated Hospital of Guangxi Medical University, Nanning, 530021, Guangxi Zhuang Autonomous Region, People's Republic of China
| | - Shikang Li
- Department of Thoracic and Cardiovascular Surgery, The First Affiliated Hospital of Guangxi Medical University, Nanning, 530021, Guangxi Zhuang Autonomous Region, People's Republic of China.
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Li H, Lin R, Zhang Y, Zhu Y, Huang S, Lan J, Lu N, Xie C, He S, Zhang W. N6-methyladenosine-modified circPLPP4 sustains cisplatin resistance in ovarian cancer cells via PIK3R1 upregulation. Mol Cancer 2024; 23:5. [PMID: 38184597 PMCID: PMC10770956 DOI: 10.1186/s12943-023-01917-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Accepted: 12/15/2023] [Indexed: 01/08/2024] Open
Abstract
BACKGROUND Cisplatin (CDDP) is the first-line chemotherapeutic strategy to treat patients with ovarian cancer (OC). The development of CDDP resistance remains an unsurmountable obstacle in OC treatment and frequently induces tumor recurrence. Circular RNAs (circRNAs) are noncoding RNAs with important functions in cancer progression. Whether circRNAs function in CDDP resistance of OC is unclear. METHODS Platinum-resistant circRNAs were screened via circRNA deep sequencing and examined using in situ hybridization (ISH) in OC. The role of circPLPP4 in CDDP resistance was assessed by clone formation and Annexin V assays in vitro, and by OC patient-derived xenografts and intraperitoneal tumor models in vivo. The mechanism underlying circPLPP4-mediated activation of miR-136/PIK3R1 signaling was examined by luciferase reporter assay, RNA pull-down, RIP, MeRIP and ISH. RESULTS circPLPP4 was remarkably upregulated in platinum resistant OC. circPLPP4 overexpression significantly enhanced, whereas circPLPP4 silencing reduced, OC cell chemoresistance. Mechanistically, circPLPP4 acts as a microRNA sponge to sequester miR-136, thus competitively upregulating PIK3R1 expression and conferring CDDP resistance. The increased circPLPP4 level in CDDP-resistant cells was caused by increased RNA stability, mediated by increased N6-methyladenosine (m6A) modification of circPLPP4. In vivo delivery of an antisense oligonucleotide targeting circPLPP4 significantly enhanced CDDP efficacy in a tumor model. CONCLUSIONS Our study reveals a plausible mechanism by which the m6A -induced circPLPP4/ miR-136/ PIK3R1 axis mediated CDDP resistance in OC, suggesting that circPLPP4 may serve as a promising therapeutic target against CDDP resistant OC. A circPLPP4-targeted drug in combination with CDDP might represent a rational regimen in OC.
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Affiliation(s)
- Han Li
- Department of Gynecology, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, Guangdong, China
| | - Run Lin
- Department of Radiology, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510080, Guangdong, China
| | - Yanna Zhang
- Department of Gynecology, State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, No. 651 Dongfeng Road East, Guangzhou, Guangdong, 510060, China
| | - Yanni Zhu
- Department of Gynecology, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, Guangdong, China
| | - Shuting Huang
- Department of Gynecology, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, Guangdong, China
| | - Jing Lan
- Department of Gynecology, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, Guangdong, China
| | - Nian Lu
- Department of Radiology, State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, No. 651 Dongfeng Road East, Guangzhou, Guangdong, 510060, China
| | - Chuanmiao Xie
- Department of Radiology, State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, No. 651 Dongfeng Road East, Guangzhou, Guangdong, 510060, China.
| | - Shanyang He
- Department of Gynecology, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, Guangdong, China.
| | - Weijing Zhang
- Department of Gynecology, State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, No. 651 Dongfeng Road East, Guangzhou, Guangdong, 510060, China.
- Department of Radiology, State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, No. 651 Dongfeng Road East, Guangzhou, Guangdong, 510060, China.
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Zheng Z, Zeng X, Zhu Y, Leng M, Zhang Z, Wang Q, Liu X, Zeng S, Xiao Y, Hu C, Pang S, Wang T, Xu B, Peng P, Li F, Tan W. CircPPAP2B controls metastasis of clear cell renal cell carcinoma via HNRNPC-dependent alternative splicing and targeting the miR-182-5p/CYP1B1 axis. Mol Cancer 2024; 23:4. [PMID: 38184608 PMCID: PMC10770969 DOI: 10.1186/s12943-023-01912-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Accepted: 12/07/2023] [Indexed: 01/08/2024] Open
Abstract
BACKGROUND Renal cell carcinoma (RCC) is one of the most common malignant tumor worldwide. Metastasis is a leading case of cancer-related deaths of RCC. Circular RNAs (circRNAs), a class of noncoding RNAs, have emerged as important regulators in cancer metastasis. However, the functional effects and regulatory mechanisms of circRNAs on RCC metastasis remain largely unknown. METHODS High-throughput RNA sequencing techniques were performed to analyze the expression profiles of circRNAs and mRNAs in highly and poorly invasive clear cell renal cell carcinoma (ccRCC) cell lines. Functional experiments were performed to unveil the regulatory role of circPPAP2B in the proliferation and metastatic capabilities of ccRCC cells. RNA pulldown, Mass spectrometry analysis, RNA methylation immunoprecipitation (MeRIP), RNA immunoprecipitation (RIP), co-immunoprecipitation (CoIP), next-generation RNA-sequencing and double luciferase experiments were employed to clarify the molecular mechanisms by which circPPAP2B promotes ccRCC metastasis. RESULTS In this study, we describe a newly identified circular RNA called circPPAP2B, which is overexpressed in highly invasive ccRCC cells, as determined through advanced high-throughput RNA sequencing techniques. Furthermore, we observed elevated circPPAP2B in ccRCC tissues, particularly in metastatic ccRCC tissues, and found it to be associated with poor prognosis. Functional experiments unveiled that circPPAP2B actively stimulates the proliferation and metastatic capabilities of ccRCC cells. Mechanistically, circPPAP2B interacts with HNRNPC in a m6A-dependent manner to facilitate HNRNPC nuclear translocation. Subcellular relocalization was dependent upon nondegradable ubiquitination of HNRNPC and stabilization of an HNRNPC/Vimentin/Importin α7 ternary complex. Moreover, we found that circPPAP2B modulates the interaction between HNRNPC and splicing factors, PTBP1 and HNPNPK, and regulates pre-mRNA alternative splicing. Finally, our studies demonstrate that circPPAP2B functions as a miRNA sponge to directly bind to miR-182-5p and increase CYP1B1 expression in ccRCC. CONCLUSIONS Collectively, our study provides comprehensive evidence that circPPAP2B promotes proliferation and metastasis of ccRCC via HNRNPC-dependent alternative splicing and miR-182-5p/CYP1B1 axis and highlights circPPAP2B as a potential therapeutic target for ccRCC intervention.
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Affiliation(s)
- Zaosong Zheng
- Department of Urology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong, China
| | - Xiangbo Zeng
- Department of Urology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong, China
| | - Yuanchao Zhu
- Department of Urology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong, China
| | - Mengxin Leng
- Department of Urology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong, China
| | - Zhiyong Zhang
- Department of Urology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong, China
| | - Qiong Wang
- Department of Urology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong, China
| | - Xiaocen Liu
- Department of Urology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong, China
| | - Siying Zeng
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, 510515, Guangdong, China
| | - Yongyuan Xiao
- Department of Urology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong, China
| | - Chenxi Hu
- Department of Urology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong, China
| | - Shiyu Pang
- Department of Urology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong, China
| | - Tong Wang
- Department of Urology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong, China
| | - Bihong Xu
- Department of Pathology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong, China
| | - Peidan Peng
- Department of Urology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong, China
| | - Fei Li
- Department of Urology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong, China.
| | - Wanlong Tan
- Department of Urology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong, China.
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Wei W, Liu K, Huang X, Tian S, Wang H, Zhang C, Ye J, Dong Y, An Z, Ma X, Wang B, Huang Y, Zhang X. EIF4A3-mediated biogenesis of circSTX6 promotes bladder cancer metastasis and cisplatin resistance. J Exp Clin Cancer Res 2024; 43:2. [PMID: 38163881 PMCID: PMC10759346 DOI: 10.1186/s13046-023-02932-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Accepted: 12/11/2023] [Indexed: 01/03/2024] Open
Abstract
BACKGROUND Cisplatin (CDDP)-based chemotherapy is a standard first-line treatment for metastatic bladder cancer (BCa) patients, and chemoresistance remains a major challenge in clinical practice. Circular RNAs (circRNAs) have emerged as essential regulators in carcinogenesis and cancer progression. However, the role of circRNAs in mediating CDDP chemosensitivity has yet to be well elucidated in BCa. METHODS CircSTX6 (hsa_circ_0007905) was identified by mining the public circRNA datasets and verified by Sanger sequencing, agarose gel electrophoresis, RNase R treatment and qRT-PCR assays. Then, function experiments were performed to evaluate the effects of circSTX6 on BCa metastasis. Luciferase reporter assay, RNA pull-down, RNA immunoprecipitation (RIP), RNA stability assay, Fluorescence in situ hybridization (FISH) and Immunofluorescence (IF) were conducted to evaluate the interaction among circSTX6, miR-515-3p, PABPC1 and SUZ12. Animal experiments were performed to explore the function of circSTX6 in tumor metastasis and CDDP sensitivity. RESULTS We identified that circSTX6 was significantly upregulated in clinical samples and cells of BCa. Functionally, circSTX6 promoted cell migration and invasion both in vitro and in vivo. Mechanistically, circSTX6 could act as a miR-515-3p sponge and abolish its effect on SUZ12. Moreover, circSTX6 was confirmed to increase the stability of SUZ12 mRNA by interacting with a mRNA stabilizer PABPC1 and subsequently promote the expression of SUZ12. Importantly, silencing of circSTX6 improved the chemosensitivity of CDDP-resistant bladder cancer cells to CDDP. Furthermore, in vivo analysis supported that knockdown of circSTX6 attenuated CDDP resistance in BCa tumors. CONCLUSION These studies demonstrate that circSTX6 plays a pivotal role in BCa metastasis and chemoresistance, and has potential to serve as a therapeutic target for treatment of BCa.
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Affiliation(s)
- Wenjie Wei
- Department of Urology, The Third Medical Center, Chinese PLA General Hospital, Beijing, 100039, China
- Medical School of PLA, Beijing, 100853, China
| | - Kan Liu
- Department of Urology, The Third Medical Center, Chinese PLA General Hospital, Beijing, 100039, China
| | - Xing Huang
- Department of Urology, The Third Medical Center, Chinese PLA General Hospital, Beijing, 100039, China
- Medical School of PLA, Beijing, 100853, China
| | - Shuo Tian
- Department of Urology, The Third Medical Center, Chinese PLA General Hospital, Beijing, 100039, China
- Medical School of PLA, Beijing, 100853, China
| | - Hanfeng Wang
- Department of Urology, The Third Medical Center, Chinese PLA General Hospital, Beijing, 100039, China
- Medical School of PLA, Beijing, 100853, China
| | - Chi Zhang
- Department of Urology, The Third Medical Center, Chinese PLA General Hospital, Beijing, 100039, China
| | - Jiali Ye
- Department of Urology, The Third Medical Center, Chinese PLA General Hospital, Beijing, 100039, China
- Medical School of PLA, Beijing, 100853, China
| | - Yuhao Dong
- Department of Urology, The Third Medical Center, Chinese PLA General Hospital, Beijing, 100039, China
- Medical School of PLA, Beijing, 100853, China
| | - Ziyan An
- Department of Urology, The Third Medical Center, Chinese PLA General Hospital, Beijing, 100039, China
- Medical School of PLA, Beijing, 100853, China
| | - Xin Ma
- Department of Urology, The Third Medical Center, Chinese PLA General Hospital, Beijing, 100039, China
| | - Baojun Wang
- Department of Urology, The Third Medical Center, Chinese PLA General Hospital, Beijing, 100039, China.
| | - Yan Huang
- Department of Urology, The Third Medical Center, Chinese PLA General Hospital, Beijing, 100039, China.
| | - Xu Zhang
- Department of Urology, The Third Medical Center, Chinese PLA General Hospital, Beijing, 100039, China.
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Luo R, Li L, Han Q, Fu J, Xiao F. HAGLR, stabilized by m6A modification, triggers PTEN-Akt signaling cascade-mediated RPE cell pyroptosis via sponging miR-106b-5p. J Biochem Mol Toxicol 2024; 38:e23596. [PMID: 38088496 DOI: 10.1002/jbt.23596] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Revised: 10/12/2023] [Accepted: 11/20/2023] [Indexed: 01/18/2024]
Abstract
Consistent hyperglycaemia on retinal microvascular tissues is recognized as a vital inducer of diabetic retinopathy (DR) pathogenesis. In view of the essential functionality of long noncoding RNAs (lncRNAs) in multiple human diseases, we aim to figure out the exact role and underlying mechanisms of lncRNA HOXD Cluster Antisense RNA 1 (HAGLR) in DR pathogenesis. Serum specimens from patients with proliferative DR and healthy volunteers were collected for measuring HAGLR levels. Human primary retinal pigment epithelium (HRPE) cells kept in high glucose (HG) condition were applied to simulating hyperglycaemia of DR pathology in vitro. Cell proliferation, apoptosis, either pyroptosis was assess using Cell Counting Kit-8 TUNEL, flow cytometry, and enzyme-linked immunoassay assays. Bioinformatics analysis was subjected to examine the interaction between HAGLR and N6-methyladenosine (m6A)-bind protein IGF2BP2, as determined using RNA immunoprecipitation and RNA pull-down. Luciferase reporter assay was performed to assess the HAGLR-miR-106b-5p-PTEN axis. Levels of pyroptosis-associated biomarkers were detected using western blotting. Aberrantly overexpressed HAGLR was uncovered in the serum samples of DR patients and HG-induced HRPE cells, of which knockdown attenuated HG-induced cytotoxic impacts on cell apoptosis and pyroptosis. Whereas, reinforced HAGLR further aggravated these effects. IGF2BP2 positively regulated HAGLR in a m6A-dependent manner. HAGLR served as a sponge for miR-106b-5p to upregulate PTEN, thereby activating Akt signaling cascade. Rescue assays demonstrated that PTEN overexpression abolished the inhibition of silenced HAGLR on pyroptosis in HRPE cells. HAGLR, epigenetically modified by IGF2BP2 in an m6A-dependent manner, functioned as a sponge for miR-106b-5p, thereby activating PTEN/Akt signaling cascade to accelerate DR pathology.
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Affiliation(s)
- Rong Luo
- Department of Ophthalmology, The First Affiliated Hospital of Nanchang Medical College, Jiangxi Provincial People's Hospital, Nanchang, Jiangxi, China
| | - Lan Li
- Department of Ophthalmology, The First Affiliated Hospital of Nanchang Medical College, Jiangxi Provincial People's Hospital, Nanchang, Jiangxi, China
| | - Qingluan Han
- Department of Ophthalmology, The First Affiliated Hospital of Nanchang Medical College, Jiangxi Provincial People's Hospital, Nanchang, Jiangxi, China
| | - Jingsong Fu
- Department of Ophthalmology, The First Affiliated Hospital of Nanchang Medical College, Jiangxi Provincial People's Hospital, Nanchang, Jiangxi, China
| | - Fan Xiao
- Department of Ophthalmology, The First Affiliated Hospital of Nanchang Medical College, Jiangxi Provincial People's Hospital, Nanchang, Jiangxi, China
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Shao Z, Chen X, Qiu H, Xu M, Wen X, Chen Z, Liu Z, Ding X, Zhang L. CircNEK6 promotes the progression of pancreatic ductal adenocarcinoma through targeting miR-503/CCND1 axis. Transl Oncol 2024; 39:101810. [PMID: 37871516 PMCID: PMC10622713 DOI: 10.1016/j.tranon.2023.101810] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Revised: 09/16/2023] [Accepted: 10/16/2023] [Indexed: 10/25/2023] Open
Abstract
PURPOSE The present study aimed to reveal the function and underlying molecular mechanism of circRNA NIMA related kinase 6 (circNEK6) in promoting the progression of pancreatic ductal adenocarcinoma (PDAC). METHODS The differentially expressed circRNAs in three paired PDAC tissues and adjacent tissues were identified by RNA sequencing. CircNEK6 was screened out to further explore its relationship with the prognosis of PDAC patients. The target microRNAs and mRNAs of circNEK6 were analyzed through online databases and detected by quantitative real-time polymerase chain reaction. Cell counting kit-8 assay, clone formation assay, transwell assay, flow cytometry and western blot were used to explore the function of circNEK6 on the biological behaviors of PDAC cells. The in vivo antitumor effect of circNEK6 silencing on PDAC was investigated by nude mouse xenograft models. RESULTS 203 differentially expressed circRNAs including circNEK6 were identified between paired PDAC tissues and adjacent tissues, and the expression level of circNEK6 was negatively correlated with the prognosis of PDAC patients. The results of in vitro experiments showed that knockdown of circNEK6 repressed the proliferation, migration and invasion, but induced the apoptosis of PDAC cells. Moreover, circNEK6 silencing inhibited tumor growth and prolonged the survival time of PDAC-bearing mice. Mechanistically, miR-503/cyclin D1 (CCND1) axis was predicted and confirmed as the target of circNEK6. CONCLUSIONS CircNEK6 serves as a competing endogenous RNA of CCND1 by absorbing miR-503, which might be treated as a novel and potential target for PDAC treatment.
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Affiliation(s)
- Zhiying Shao
- Cancer Institute, Xuzhou Medical University, Xuzhou, Jiangsu 221000, China
| | - Xueting Chen
- Cancer Institute, Xuzhou Medical University, Xuzhou, Jiangsu 221000, China
| | - Hui Qiu
- Department of Radiation Oncology, Affiliated Hospital of Xuzhou Medical University, No. 9 Kunpeng North Road, Xuzhou, Jiangsu 221000, China
| | - Muchen Xu
- Department of Radiation Oncology, Dushu Lake Hospital Affilated to Soochow University, Medical Center of Soochow University, Suzhou, Jiangsu 215000, China
| | - Xin Wen
- Department of Radiation Oncology, Affiliated Hospital of Xuzhou Medical University, No. 9 Kunpeng North Road, Xuzhou, Jiangsu 221000, China
| | - Ziqin Chen
- Cancer Institute, Xuzhou Medical University, Xuzhou, Jiangsu 221000, China
| | - Zhengyang Liu
- Cancer Institute, Xuzhou Medical University, Xuzhou, Jiangsu 221000, China
| | - Xin Ding
- Department of Radiation Oncology, Affiliated Hospital of Xuzhou Medical University, No. 9 Kunpeng North Road, Xuzhou, Jiangsu 221000, China.
| | - Longzhen Zhang
- Cancer Institute, Xuzhou Medical University, Xuzhou, Jiangsu 221000, China; Department of Radiation Oncology, Affiliated Hospital of Xuzhou Medical University, No. 9 Kunpeng North Road, Xuzhou, Jiangsu 221000, China.
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Gu J, Cao H, Chen X, Zhang XD, Thorne RF, Liu X. RNA m6A modifications regulate crosstalk between tumor metabolism and immunity. WILEY INTERDISCIPLINARY REVIEWS. RNA 2024; 15:e1829. [PMID: 38114887 DOI: 10.1002/wrna.1829] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Revised: 11/20/2023] [Accepted: 11/27/2023] [Indexed: 12/21/2023]
Abstract
In recent years, m6A modifications in RNA transcripts have arisen as a hot topic in cancer research. Indeed, a number of independent studies have elaborated that the m6A modification impacts the behavior of tumor cells and tumor-infiltrating immune cells, altering tumor cell metabolism along with the differentiation and functional activity of immune cells. This review elaborates on the links between RNA m6A modifications, tumor cell metabolism, and immune cell behavior, discussing this topic from the viewpoint of reciprocal regulation through "RNA m6A-tumor cell metabolism-immune cell behavior" and "RNA m6A-immune cell behavior-tumor cell metabolism" axes. In addition, we discuss the various factors affecting RNA m6A modifications in the tumor microenvironment, particularly the effects of hypoxia associated with cancer cell metabolism along with immune cell-secreted cytokines. Our analysis proposes the conclusion that RNA m6A modifications support widespread interactions between tumor metabolism and tumor immunity. With the current viewpoint that long-term cancer control must tackle cancer cell malignant behavior while strengthening anti-tumor immunity, the recognition of RNA m6A modifications as a key factor provides a new direction for the targeted therapy of tumors. This article is categorized under: RNA Processing > RNA Editing and Modification RNA in Disease and Development > RNA in Disease RNA Interactions with Proteins and Other Molecules > Protein-RNA Interactions: Functional Implications.
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Affiliation(s)
- Jinghua Gu
- School of Life Sciences, Anhui Medical University, Hefei, China
- The First Clinical Medical College of Anhui Medical University, Hefei, China
| | - Huake Cao
- School of Life Sciences, Anhui Medical University, Hefei, China
- The First Clinical Medical College of Anhui Medical University, Hefei, China
| | - Xiaoli Chen
- Henan International Joint Laboratory of Non-coding RNA and Metabolism in Cancer, Henan Provincial Key Laboratory of Long Non-coding RNA and Cancer Metabolism, Translational Research Institute of Henan Provincial People's Hospital and People's Hospital of Zhengzhou University, Henan, China
| | - Xu Dong Zhang
- Henan International Joint Laboratory of Non-coding RNA and Metabolism in Cancer, Henan Provincial Key Laboratory of Long Non-coding RNA and Cancer Metabolism, Translational Research Institute of Henan Provincial People's Hospital and People's Hospital of Zhengzhou University, Henan, China
- School of Biomedical Sciences and Pharmacy, The University of Newcastle, Newcastle, New South Wales, Australia
| | - Rick F Thorne
- Henan International Joint Laboratory of Non-coding RNA and Metabolism in Cancer, Henan Provincial Key Laboratory of Long Non-coding RNA and Cancer Metabolism, Translational Research Institute of Henan Provincial People's Hospital and People's Hospital of Zhengzhou University, Henan, China
- School of Biomedical Sciences and Pharmacy, The University of Newcastle, Newcastle, New South Wales, Australia
| | - Xiaoying Liu
- School of Life Sciences, Anhui Medical University, Hefei, China
- Henan International Joint Laboratory of Non-coding RNA and Metabolism in Cancer, Henan Provincial Key Laboratory of Long Non-coding RNA and Cancer Metabolism, Translational Research Institute of Henan Provincial People's Hospital and People's Hospital of Zhengzhou University, Henan, China
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Sun M, Wang L, Ge L, Xu D, Zhang R. IGF2BP1 facilitates non-small cell lung cancer progression by regulating the KIF2A-mediated Wnt/β-catenin pathway. Funct Integr Genomics 2023; 24:4. [PMID: 38102458 DOI: 10.1007/s10142-023-01275-x] [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: 09/05/2023] [Revised: 11/06/2023] [Accepted: 11/21/2023] [Indexed: 12/17/2023]
Abstract
Insulin-like growth factor 2 mRNA-binding proteins (IGF2BPs) are crucially implicated in the cancer progression. The current study intends to excavate and clarify the mechanisms of the key IGF2BPs in non-small cell lung cancer (NSCLC). The expression of IGF2BPs and kinesin family member 2A (KIF2A) was examined using immunohistochemistry, real-time quantitative polymerase chain reaction, and western blot in NSCLC tissue samples or cell lines. NSCLC cell viability was examined using a cell counting kit-8 assay. Cell apoptotic rate was assessed using flow cytometry analysis. The migration and invasion of H1299 cells were subject to scratch test and Transwell assays, respectively. Starbase 2.0 was used to detect the downstream factors of the IGF2BP1 protein. The binding of IGF2BP with KIF2A was detected using RNA binding protein immunoprecipitation assays. Ki-67 immunohistochemistry assay and TUNEL assays were applied for the evaluation of proliferation and apoptosis in vivo, respectively. IGF2BP1 was upregulated in NSCLC tissue samples and cells. Functionally, IGF2BP1 overexpression promoted the proliferative ability, migration, and invasiveness of H1299 cells, while inhibiting cell apoptosis in vitro. In vivo studies revealed that overexpression of IGF2BP1 promoted tumor growth of NSCLC. Mechanistically, IGF2BP1 was involved in KIF2A mRNA stabilization. KIF2A exerted the same functions as IGF2BP1 via the Wnt/β-catenin signaling. In conclusion, IGF2BP1 enhances NSCLC malignant progression by stabilizing KIF2A to modulate the Wnt/β-catenin pathway.
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Affiliation(s)
- Ming Sun
- Department of Thoracic Surgery, The First Affiliated Hospital of Anhui Medical University, 218 Jixi Road, Hefei, 230022, Anhui, China
- Department of Thoracic Surgery, Hefei First People's Hospital, Hefei, 230001, Anhui, China
| | - Ling Wang
- Department of Thoracic Surgery, Hefei First People's Hospital, Hefei, 230001, Anhui, China
| | - Lei Ge
- Department of Oncology, Hefei First People's Hospital, Hefei, 230001, Anhui, China
| | - Daojun Xu
- Department of Pathology, Hefei First People's Hospital, Hefei, 230001, Anhui, China
| | - Renquan Zhang
- Department of Thoracic Surgery, The First Affiliated Hospital of Anhui Medical University, 218 Jixi Road, Hefei, 230022, Anhui, China.
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Lin L, Zhao Y, Zheng Q, Zhang J, Li H, Wu W. Epigenetic targeting of autophagy for cancer: DNA and RNA methylation. Front Oncol 2023; 13:1290330. [PMID: 38148841 PMCID: PMC10749975 DOI: 10.3389/fonc.2023.1290330] [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: 09/07/2023] [Accepted: 11/28/2023] [Indexed: 12/28/2023] Open
Abstract
Autophagy, a crucial cellular mechanism responsible for degradation and recycling of intracellular components, is modulated by an intricate network of molecular signals. Its paradoxical involvement in oncogenesis, acting as both a tumor suppressor and promoter, has been underscored in recent studies. Central to this regulatory network are the epigenetic modifications of DNA and RNA methylation, notably the presence of N6-methyldeoxyadenosine (6mA) in genomic DNA and N6-methyladenosine (m6A) in eukaryotic mRNA. The 6mA modification in genomic DNA adds an extra dimension of epigenetic regulation, potentially impacting the transcriptional dynamics of genes linked to autophagy and, especially, cancer. Conversely, m6A modification, governed by methyltransferases and demethylases, influences mRNA stability, processing, and translation, affecting genes central to autophagic pathways. As we delve deeper into the complexities of autophagy regulation, the importance of these methylation modifications grows more evident. The interplay of 6mA, m6A, and autophagy points to a layered regulatory mechanism, illuminating cellular reactions to a range of conditions. This review delves into the nexus between DNA 6mA and RNA m6A methylation and their influence on autophagy in cancer contexts. By closely examining these epigenetic markers, we underscore their promise as therapeutic avenues, suggesting novel approaches for cancer intervention through autophagy modulation.
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Affiliation(s)
- Luobin Lin
- Guangdong Province Key Laboratory of Biotechnology Drug Candidates, School of Life Sciences and Biopharmaceuticals, Guangdong Pharmaceutical University, Guangzhou, Guangdong, China
| | - Yuntao Zhao
- Guangdong Province Key Laboratory of Biotechnology Drug Candidates, School of Life Sciences and Biopharmaceuticals, Guangdong Pharmaceutical University, Guangzhou, Guangdong, China
| | - Qinzhou Zheng
- Guangdong Province Key Laboratory of Biotechnology Drug Candidates, School of Life Sciences and Biopharmaceuticals, Guangdong Pharmaceutical University, Guangzhou, Guangdong, China
| | - Jiayang Zhang
- Guangdong Province Key Laboratory of Biotechnology Drug Candidates, School of Life Sciences and Biopharmaceuticals, Guangdong Pharmaceutical University, Guangzhou, Guangdong, China
| | - Huaqin Li
- School of Health Sciences, Guangzhou Xinhua University, Guangzhou, Guangdong, China
| | - Wenmei Wu
- Guangdong Province Key Laboratory of Biotechnology Drug Candidates, School of Life Sciences and Biopharmaceuticals, Guangdong Pharmaceutical University, Guangzhou, Guangdong, China
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Liu S, Xiang D. New understandings of the genetic regulatory relationship between non-coding RNAs and m 6A modification. Front Genet 2023; 14:1270983. [PMID: 38125749 PMCID: PMC10731383 DOI: 10.3389/fgene.2023.1270983] [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: 08/01/2023] [Accepted: 11/20/2023] [Indexed: 12/23/2023] Open
Abstract
One of the most frequent epigenetic modifications of RNA in eukaryotes is N6 methyladenosine (m6A), which is mostly present in messenger RNAs. Through the influence of several RNA processing stages, m6A modification is a crucial approach for controlling gene expression, especially in cancer progression. It is universally acknowledged that numerous non-coding RNAs (ncRNAs), such as microRNAs, circular RNAs, long non-coding RNAs, and piRNAs, are also significantly affected by m6A modification, and the complex genetic regulatory relationship between m6A and ncRNAs plays a pivotal role in the development of cancer. The connection between m6A modifications and ncRNAs offers an opportunity to explore the oncogene potential regulatory mechanisms and suggests that m6A modifications and ncRNAs could be vital biomarkers for multiple cancers. In this review, we discuss the mechanisms of interaction between m6A methylation and ncRNAs in cancer, and we also summarize diagnostic and prognostic biomarkers for clinical cancer detection. Furthermore, our article includes some methodologies for identifying m6A sites when assessing biomarker potential.
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Affiliation(s)
- Songtao Liu
- The First School of Clinical Medicine, Southern Medical University, Guangzhou, China
| | - Dayong Xiang
- Division of Orthopaedics and Traumatology, Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Bone and Cartilage Regenerative Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, China
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Zhang Y, Guo J, Zhang L, Li Y, Sheng K, Zhang Y, Liu L, Gong W, Guo K. CircASPH Enhances Exosomal STING to Facilitate M2 Macrophage Polarization in Colorectal Cancer. Inflamm Bowel Dis 2023; 29:1941-1956. [PMID: 37624989 DOI: 10.1093/ibd/izad113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Indexed: 08/27/2023]
Abstract
Exosomes are considered a mediator of communication within the tumor microenvironment (TME), which modulates cancer progression through transmitting cargos between cancer cells and other cancer-related cells in TME. Circular RNAs (circRNAs) have emerged to be regulators in colorectal cancer (CRC) progression, but most of them have not been discussed in CRC. This study aims to investigate the role of circRNA aspartate beta-hydroxylase (circASPH) in CRC progression and its correlation with exosome-mediated TME. At first, we determined that circASPH was upregulated in CRC samples and cell lines. Functionally, the circASPH deficiency suppressed the malignant processes of CRC cells and also inhibited in vivo tumor growth via enhancing antitumor immunity. Mechanically, circASPH facilitated macrophage M2 polarization by upregulating exosomal stimulator of interferon genes (STING). CircASPH interacted with insulin-like growth factor 2 mRNA binding protein 2 (IGF2BP2) to stabilize IGF2BP2 protein, therefore enhancing the stability of m6A-modified STING mRNA. In turn, coculture of STING-overexpressed macrophages recovered the suppression of silenced circASPH on the malignancy of CRC cells both in vitro and in vivo. Our study demonstrated that circASPH enhances exosomal STING to facilitate M2 macrophage polarization, which further accelerates CRC progression. The findings support circASPH as a promising therapeutic target for CRC treatment.
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Affiliation(s)
- Yuting Zhang
- Department of Gastroenterology, the First Affiliated Hospital of University of Science and Technology of China (USTC), Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, 230001, Anhui, China
| | - Jiakun Guo
- College of Life Science, Jilin Agricultural University, Changchun, Jilin, China
| | - Liyin Zhang
- Department of Dermatology, Wuxi's Second People Hospital Affiliated With Nanjing Medical University, 68 Zhongshan Road, Wuxi, Jiangsu 214000, China
| | - Ying Li
- Institute of Clinical Pharmacology, Anhui Medical University, Hefei, 230001, Anhui, China
| | - Kangliang Sheng
- School of Life Sciences, Anhui University, Hefei, 230001, Anhui, China
| | - Yawei Zhang
- Department of General Surgery, the First Affiliated Hospital of University of Science and Technology of China (USTC), Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, 230001, Anhui, China
| | - Liu Liu
- Department of Clinical Laboratory, the First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui 230001, China
| | - Wenbin Gong
- Department of General Surgery, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, Shaanxi, China
| | - Kun Guo
- Department of General Surgery, the First Affiliated Hospital of University of Science and Technology of China (USTC), Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, 230001, Anhui, China
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Yao Y, Chen C, Wang J, Xuan H, Chen X, Li Z, Yang F, Wang B, Lin S, Li S, Tang D, Gong L, Gao W. Circular RNA circATP9A promotes non-small cell lung cancer progression by interacting with HuR and by promoting extracellular vesicles-mediated macrophage M2 polarization. J Exp Clin Cancer Res 2023; 42:330. [PMID: 38049814 PMCID: PMC10696866 DOI: 10.1186/s13046-023-02916-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Accepted: 11/27/2023] [Indexed: 12/06/2023] Open
Abstract
BACKGROUND CircRNA is recognized for its significant regulatory function across various cancers. However, its regulatory role in non-small cell lung cancer (NSCLC) is still largely uncharted. METHODS Analysis based on public databases is completed using R software. circATP9A was identified by two circRNA datasets of NSCLC from the Gene Expression Omnibus database. To examine the impact of circATP9A on the phenotype of NSCLC, we conducted both in vitro and in vivo functional experiments. The mRNA and protein levels of specific molecules were determined through quantitative real-time PCR and western blot assays. RNA pulldown and RNA immunoprecipitation assays were performed to verify the interaction between RNA and protein. The functional role of extracellular vesicles (EVs)-circATP9A on tumor-associated macrophage (TAM) polarization was assessed using co-culture system and cell flow cytometry. RESULTS Here, we elucidates the functional role of circATP9A in NSCLC. We demonstrated that circATP9A can foster the progression of NSCLC through in vivo and in vitro experiments. From a mechanistic standpoint, circATP9A can interact with the HuR protein to form an RNA-protein complex, subsequently amplifying the mRNA and protein levels of the target gene NUCKS1. Further, the PI3K/AKT/mTOR signaling was identified as the downstream pathways of circATP9A/HuR/NUCKS1 axis. More notably, hnRNPA2B1 can mediate the incorporation of circATP9A into EVs. Subsequently, these EVs containing circATP9A induce the M2 phenotype of TAMs, thereby facilitating NSCLC development. CONCLUSIONS Our discoveries indicate that circATP9A could serve as a promising diagnostic indicator and a therapeutic target for NSCLC.
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Affiliation(s)
- Yuanshan Yao
- Department of Thoracic Surgery, Shanghai Key Laboratory of Clinical Geriatric Medicine, HuaDong Hospital Affiliated to Fudan University, Shanghai, 200041, China
| | - Chunji Chen
- Department of Thoracic Surgery, Shanghai Key Laboratory of Clinical Geriatric Medicine, HuaDong Hospital Affiliated to Fudan University, Shanghai, 200041, China
| | - Jing Wang
- Department of Thoracic Surgery, Shanghai Key Laboratory of Clinical Geriatric Medicine, HuaDong Hospital Affiliated to Fudan University, Shanghai, 200041, China
| | - Haojie Xuan
- Department of Thoracic Surgery, Shanghai Key Laboratory of Clinical Geriatric Medicine, HuaDong Hospital Affiliated to Fudan University, Shanghai, 200041, China
| | - Xiuxiu Chen
- Department of Thoracic Surgery, Shanghai Key Laboratory of Clinical Geriatric Medicine, HuaDong Hospital Affiliated to Fudan University, Shanghai, 200041, China
| | - Zheng Li
- Department of Thoracic Surgery, Shanghai Key Laboratory of Clinical Geriatric Medicine, HuaDong Hospital Affiliated to Fudan University, Shanghai, 200041, China
| | - Fuzhi Yang
- Department of Thoracic Surgery, Shanghai Key Laboratory of Clinical Geriatric Medicine, HuaDong Hospital Affiliated to Fudan University, Shanghai, 200041, China
| | - Bin Wang
- Department of Thoracic Surgery, Shanghai Key Laboratory of Clinical Geriatric Medicine, HuaDong Hospital Affiliated to Fudan University, Shanghai, 200041, China
| | - Siyun Lin
- Department of Thoracic Surgery, Shanghai Key Laboratory of Clinical Geriatric Medicine, HuaDong Hospital Affiliated to Fudan University, Shanghai, 200041, China
| | - Saitian Li
- Department of Thoracic Surgery, Shanghai Key Laboratory of Clinical Geriatric Medicine, HuaDong Hospital Affiliated to Fudan University, Shanghai, 200041, China
| | - Dongfang Tang
- Department of Thoracic Surgery, Shanghai Key Laboratory of Clinical Geriatric Medicine, HuaDong Hospital Affiliated to Fudan University, Shanghai, 200041, China
| | - Libao Gong
- Department of Abdominal Oncology, The Cancer Center of the Fifth Affiliated Hospital, Sun Yat-Sen University, Zhuhai, 519000, Guangdong Province, China
| | - Wen Gao
- Department of Thoracic Surgery, Shanghai Key Laboratory of Clinical Geriatric Medicine, HuaDong Hospital Affiliated to Fudan University, Shanghai, 200041, China.
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Hu P, Lin L, Huang T, Li Z, Xiao M, Guo H, Chen G, Liu D, Ke M, Shan H, Zhang F, Zhang Y. Circular RNA circEYA3 promotes the radiation resistance of hepatocellular carcinoma via the IGF2BP2/DTX3L axis. Cancer Cell Int 2023; 23:308. [PMID: 38042777 PMCID: PMC10693171 DOI: 10.1186/s12935-023-03168-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2023] [Accepted: 11/27/2023] [Indexed: 12/04/2023] Open
Abstract
BACKGROUND Hepatocellular carcinoma (HCC) has a high incidence and mortality rate despite various treatment options, including 125I seed implantation. However, recurrence and radiation resistance remain challenging issues. Hsa_circ_0007895 (circEYA3)-derived from exons 2-6 of EYA3-facilitates the proliferation and progression of pancreatic ductal adenocarcinoma. However, the role of circEYA3 in HCC 125I radiation resistance remains unclear. Thus, we aimed to investigate the functions and underlying molecular mechanisms of circEYA3 in HCC under 125I and X-ray irradiation conditions. METHODS CircEYA3 was identified by RNA-seq in patients with HCC before and after 125I seed implantation treatment, followed by fluorescence in situ hybridization and RNase R assays. The radiosensitivity of HCC cell lines irradiated with 125I seeds or external irradiation were evaluated using the Cell Counting Kit 8, flow cytometry, γH2A.X immunofluorescence and comet assays. RNA pull-down and RNA immunoprecipitation assays were performed to explore the interactions between circEYA3 and IGF2BP2. DTX3L mRNA was identified by RNA-seq in PLC/PRF/5 cells with overexpressed circEYA3. The corresponding in vitro results were verified using a mouse xenograft model. RESULTS CircEYA3 decreased the radiosensitivity of HCC cells both in vitro and in vivo. Notably, using a circRNA pulldown assay and RNA-binding protein immunoprecipitation, we identified IGF2BP2 as a novel and robust interacting protein of circEYA3. Mechanistically, circEYA3 binds to IGF2BP2 and enhances its ability to stabilize DTX3L mRNA, thereby specifically alleviating radiation-induced DNA damage in HCC cells. CONCLUSIONS Our findings demonstrate that circEYA3 increases the radioresistance of HCC to 125I seeds and external irradiation via the IGF2BP2/DTX3L axis. Thus, circEYA3 might be a predictive indicator and intervention option for 125I brachytherapy or external radiotherapy in HCC.
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Affiliation(s)
- Pan Hu
- Department of Minimally Invasive Intervention, State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-Sen University Cancer Center, 651 Dongfeng Road East, Guangzhou, 510060, Guangdong, People's Republic of China
| | - Letao Lin
- Department of Minimally Invasive Intervention, State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-Sen University Cancer Center, 651 Dongfeng Road East, Guangzhou, 510060, Guangdong, People's Republic of China
| | - Tao Huang
- Department of Minimally Invasive Intervention, State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-Sen University Cancer Center, 651 Dongfeng Road East, Guangzhou, 510060, Guangdong, People's Republic of China
| | - Zhenyu Li
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-Sen University Cancer Center, Guangzhou,, 510060, People's Republic of China
| | - Meigui Xiao
- Department of Minimally Invasive Intervention, State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-Sen University Cancer Center, 651 Dongfeng Road East, Guangzhou, 510060, Guangdong, People's Republic of China
| | - Huanqing Guo
- Department of Minimally Invasive Intervention, State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-Sen University Cancer Center, 651 Dongfeng Road East, Guangzhou, 510060, Guangdong, People's Republic of China
| | - Guanyu Chen
- Department of Minimally Invasive Intervention, State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-Sen University Cancer Center, 651 Dongfeng Road East, Guangzhou, 510060, Guangdong, People's Republic of China
| | - Dengyao Liu
- Department of Minimally Invasive Intervention, State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-Sen University Cancer Center, 651 Dongfeng Road East, Guangzhou, 510060, Guangdong, People's Republic of China
| | - Miaola Ke
- Department of Blood Transfusion, State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-Sen University Cancer Center, Guangzhou,, 510060, People's Republic of China
| | - Hongbo Shan
- Department of Endoscopy, State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-Sen University Cancer Center, 651 Dongfeng Road East, Guangzhou, 510060, Guangdong, China.
| | - Fujun Zhang
- Department of Minimally Invasive Intervention, State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-Sen University Cancer Center, 651 Dongfeng Road East, Guangzhou, 510060, Guangdong, People's Republic of China.
| | - Yanling Zhang
- School of Laboratory Medicine and Biotechnology, Southern Medical University, 1023 South Shatai Road, Guangzhou, Guangdong, 510515, People's Republic of China.
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Ren A, Gong F, Liu G, Fan W. NR1H4-mediated circRHOBTB3 modulates the proliferation, metastasis, and Warburg effects of cervical cancer through interacting with IGF2BP3. Mol Cell Biochem 2023; 478:2671-2681. [PMID: 36939994 DOI: 10.1007/s11010-023-04692-5] [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: 03/13/2022] [Accepted: 02/25/2023] [Indexed: 03/21/2023]
Abstract
Globally, cervical cancer (CC) ranks as the fourth most common cancer and the most lethal malignancy among females of reproductive age. The incidence of CC is increasing in low-income countries, with unsatisfactory outcomes and long-term survival for CC patients. Circular RNAs (CircRNAs) are promising therapeutics that target multiple cancers. In this study, we investigated the tumorigenic role of circRHOBTB3 in CC, showing that circRHOBTB3 is highly expressed in CC cells and circRHOBTB3 knockdown also repressed CC proliferation, migration, invasion, and the Warburg effects. CircRHOBTB3 interacted with the RNA-binding protein, IGF2BP3, to stabilize its expression in CC cells and is putatively transcriptionally regulated by NR1H4. In conclusion, this novel NR1H4/circRHOBTB3/IGF2BP3 axis may provide new insights into CC pathogenesis.
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Affiliation(s)
- Ailing Ren
- Department of Gynecology, Hospital of Chengdu University of Traditional Chinese Medicine, No. 39 Shi-er-qiao Road, Chengdu, 610072, China
| | - Fan Gong
- Department of Clinical Laboratory, Hospital of Chengdu University of Traditional Chinese Medicine, No. 39 Shi-er-qiao Road, Chengdu, 610072, China
| | - Guokun Liu
- Outpatient Department, Huai'an Second People's Hospital, The Affiliated Huai'an Hospital of Xuzhou Medical University, Huai'an, China
| | - Wenli Fan
- Wuhan Children's Hospital (Wuhan Maternal and Child Healthcare Hospital), Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
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Chen Y, Chen X, Li Z, Zhu Y, Liu F, Cai J. CircDENND2D Inhibits PD-L1-Mediated Non-Small Cell Lung Cancer Metastasis and Immune Escape by Regulating miR-130b-3p/STK11 Axis. Biochem Genet 2023; 61:2691-2709. [PMID: 37222962 DOI: 10.1007/s10528-023-10401-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Accepted: 05/08/2023] [Indexed: 05/25/2023]
Abstract
Local recurrence and distant metastasis of non-small cell lung cancer (NSCLC) caused by immune escape is one of the root causes of treatment difficulties. We aim to investigate the mechanism of immune escape in NSCLC. NSCLC tissues were collected. Cell proliferation was detected by CCK-8 assay. Cell migration and invasion ability was measured by Transwell assay. The expressions of E-cadherin, N-cadherin and PD-L1 were detected by Western blot. NSCLC cells were co-cultured with CD8+ T cells to simulate tumor microenvironment in vitro. The proportion of CD8+ T cells and apoptosis were detected by flow cytometry. Dual-luciferase reporter gene assay confirmed the targeting relationship of circDENND2D and STK11. The expressions of circDENND2D and STK1 were down-regulated, while miR-130b-3p expression was up-regulated in NSCLC tissues. Overexpression of circDENND2D or STK11 inhibited NSCLC cells proliferation, migration and invasion, and attenuated the immune escape of NSCLC cells. CircDENND2D targeted miR-130b-3p to competitively promote STK11 expression. STK11 knockdown or miR-130b-3p overexpression attenuated the function of circDENND2D overexpression on NSCLC cells. CircDENND2D inhibited metastasis and immune escape of NSCLC by regulating miR-130b-3p/STK11 axis.
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Affiliation(s)
- Yongxing Chen
- Department of Respiratory and Critical Care Medicine, Hainan Affiliated Hospital of Hainan Medical University/Hainan General Hospital, Haikou, 570311, Hainan Province, People's Republic of China
| | - Xianshan Chen
- Department of Thoracic Surgery, Hainan Affiliated Hospital of Hainan Medical University/Hainan General Hospital, Haikou, 570311, Hainan Province, People's Republic of China
| | - Zhao Li
- Department of Respiratory and Critical Care Medicine, Hainan Affiliated Hospital of Hainan Medical University/Hainan General Hospital, Haikou, 570311, Hainan Province, People's Republic of China
| | - Yike Zhu
- Department of Respiratory and Critical Care Medicine, Hainan Affiliated Hospital of Hainan Medical University/Hainan General Hospital, Haikou, 570311, Hainan Province, People's Republic of China
| | - Fujin Liu
- Department of Pathology, Hainan Affiliated Hospital of Hainan Medical University/Hainan General Hospital, Haikou, 570311, Hainan Province, People's Republic of China
| | - Junhong Cai
- Medical Laboratory Center, Hainan Affiliated Hospital of Hainan Medical University/Hainan General Hospital, No.19, Xiuhua Road, Haikou, 570311, Hainan Province, People's Republic of China.
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76
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Liu Y, Chen K, Shou Y, Li S, Wang J, Zhang Q, Huang Z, Xu J, Li M, Liu D, Liang H, Yang H, Zhang X. circRARS synergises with IGF2BP3 to regulate RNA methylation recognition to promote tumour progression in renal cell carcinoma. Clin Transl Med 2023; 13:e1512. [PMID: 38073586 PMCID: PMC10711645 DOI: 10.1002/ctm2.1512] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2023] [Revised: 11/24/2023] [Accepted: 11/29/2023] [Indexed: 12/18/2023] Open
Abstract
As the most prominent RNA modification, N6-methyladenosine (m6 A) participates in the regulation of tumour initiation and progression. Circular RNAs (circRNAs) also play crucial roles in ubiquitous life processes. Whether circRNAs are required for m6 A regulation in renal cell carcinoma (RCC) remains unclear. Meta-analysis and bioinformatics identified that IGF2BP3 was upregulated in RCC and indicated a worse prognosis. IGF2BP3 significantly promoted RCC progression in vitro and in vivo. Mechanistically, circRARS bound to KH1-KH2 domains of IGF2BP3 to enhance m6 A modification recognition. A 12-nt sequence (GUCUUCCAGCAA) was proven to be the IGF2BP3-binding site of circRARS. Additionally, CAPN15, CD44, HMGA2, TNRC6A and ZMIZ2 were screened to be the target genes regulated by the IGF2BP3/circRARS complex in an m6 A-dependent manner. Stabiliser proteins, including HuR, Matrin3 and pAbPC1, were recruited by circRARS, thereby increasing the mRNA stability of the forementioned five target genes. Consequently, the IGF2BP3/circRARS complex facilitated the lipid accumulation of RCC cells and promoted sunitinib resistance via target genes. circRARS synergised with IGF2BP3 to facilitate m6 A recognition, thereby promoting RCC progression. Thus, IGF2BP3 could be a potential biomarker for RCC diagnosis and prognosis and a therapeutic target.
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Affiliation(s)
- Yuenan Liu
- Department of UrologyUnion Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanP. R. China
- Institute of UrologyTongji Medical CollegeHuazhong University of Science and TechnologyWuhanP. R. China
| | - Kailei Chen
- Department of UrologyUnion Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanP. R. China
- Institute of UrologyTongji Medical CollegeHuazhong University of Science and TechnologyWuhanP. R. China
| | - Yi Shou
- Department of UrologyUnion Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanP. R. China
- Institute of UrologyTongji Medical CollegeHuazhong University of Science and TechnologyWuhanP. R. China
- Department of UrologySir Run Run Shaw HospitalZhejiang University School of MedicineHangzhouP. R. China
| | - Sen Li
- Department of UrologyUnion Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanP. R. China
- Institute of UrologyTongji Medical CollegeHuazhong University of Science and TechnologyWuhanP. R. China
| | - Jun Wang
- Department of UrologyUnion Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanP. R. China
- Institute of UrologyTongji Medical CollegeHuazhong University of Science and TechnologyWuhanP. R. China
| | - Qingyang Zhang
- Department of Biomedical InformaticsHarvard Medical SchoolBostonMassachusettsUSA
| | - Ziwei Huang
- Department of Breast and Thyroid SurgeryUnion HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanP. R. China
| | - Jiaju Xu
- Department of UrologyUnion Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanP. R. China
- Institute of UrologyTongji Medical CollegeHuazhong University of Science and TechnologyWuhanP. R. China
| | - Mingfeng Li
- Department of UrologyUnion Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanP. R. China
- Institute of UrologyTongji Medical CollegeHuazhong University of Science and TechnologyWuhanP. R. China
| | - Di Liu
- Department of UrologyUnion Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanP. R. China
- Institute of UrologyTongji Medical CollegeHuazhong University of Science and TechnologyWuhanP. R. China
| | - Huageng Liang
- Department of UrologyUnion Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanP. R. China
- Institute of UrologyTongji Medical CollegeHuazhong University of Science and TechnologyWuhanP. R. China
| | - Hongmei Yang
- Department of Pathogenic BiologySchool of Basic MedicineHuazhong University of Science and TechnologyWuhanP. R. China
| | - Xiaoping Zhang
- Department of UrologyUnion Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanP. R. China
- Institute of UrologyTongji Medical CollegeHuazhong University of Science and TechnologyWuhanP. R. China
- Shenzhen Huazhong University of Science and Technology Research InstituteShenzhenP. R. China
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Ma T, Wu J, Chen Z. Regulatory networks of circRNA- centred ceRNAs in sepsis-induced acute kidney injury. Epigenetics 2023; 18:2278960. [PMID: 37979155 PMCID: PMC10768734 DOI: 10.1080/15592294.2023.2278960] [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: 04/28/2023] [Accepted: 10/27/2023] [Indexed: 11/20/2023] Open
Abstract
Sepsis is the primary cause of acute kidney injury (AKI) and is associated with high mortality rates. Growing evidence suggests that noncoding RNAs are vitally involved in kidney illnesses, whereas the role of circular RNAs (circRNAs) in sepsis-induced AKI (SAKI) remains largely unknown. In this present study, caecal ligation and puncture (CLP) in mice was performed to establish an SAKI model. The expression of circRNAs and mRNAs was analysed using circRNA microarray or next-generation sequencing. The results revealed that the expressions of 197 circRNAs and 2509 mRNAs were dysregulated. Validation of the selected circRNAs was performed by qRT-PCR. Bioinformatics analyses and chromatin immunoprecipitation demonstrated that NF-κB/p65 signalling induced the upregulation of circC3, circZbtb16, and circFkbp5 and their linear counterparts by p65 transcription in mouse tubular epithelial cells (mTECs). Furthermore, competitive endogenous RNA (ceRNA) networks demonstrated that some components of NF-κB signalling were potential targets of these dysregulated circRNAs. Among them, Tnf-α was increased by circFkbp5 through the downregulation of miR-760-3p in lipopolysaccharide (LPS)-stimulated mTECs. Knocking down circFkbp5 inhibited the p65 phosphorylation and apoptosis in injured mTECs. These findings suggest that the selected circRNAs and the related ceRNA networks provide new knowledge into the fundamental mechanism of SAKI and circFkbp5/miR-760-3p/Tnf-α axis might be therapeutic targets.
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Affiliation(s)
- Tongtong Ma
- Department of Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Junjie Wu
- Department of Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Zhongqing Chen
- Department of Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, China
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78
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Yue X, Lan F, Liu W. Serum exosomal circCCDC66 as a potential diagnostic and prognostic biomarker for pituitary adenomas. Front Oncol 2023; 13:1268778. [PMID: 38098508 PMCID: PMC10720038 DOI: 10.3389/fonc.2023.1268778] [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: 08/01/2023] [Accepted: 11/13/2023] [Indexed: 12/17/2023] Open
Abstract
Purpose Circular RNAs (circRNAs) play an important role in tumorigenesis, and exosomal circRNAs have the potential to be novel biomarkers for cancer diagnosis. Here, we are committed to reveal serum exosomal circCCDC66 as a noninvasive biomarker to diagnose and predict recurrence in pituitary adenoma (PA). Methods A total of 90 PA patients and 50 healthy subjects were enrolled for clinical validation. Exosomes were extracted from the serum and validated by transmission electron microscopy, nanoparticle tracking analysis, and Western blot assay. The expression of circCCDC66 in serum exosomes was assessed using quantitative real-time PCR (qRT-PCR), and correlations between circCCDC66 expression and clinicopathological factors were analyzed. The reliability of serum exosomal circCCDC66 to diagnose PA was evaluated using receiver operating characteristic (ROC) analysis. Results Initially, an obviously significantly increasing level of serum exosomal circCCDC66 was verified in the PA specimens compared with healthy controls. Importantly, serum exosomal circCCDC66, which was secreted and released by PA cells, could monitor tumor dynamics and serve as a potentially prognostic biomarker during treatment. Additionally, ROC curve analysis was performed and the corresponding area under the curve (AUC) values were used to confirm the ability of serum exosomal circCCDC66 as a potentially diagnostic and prognostic biomarker for PA patients. Importantly, the progression-free survival was much longer in the low serum exosomal circCCDC66 group than in the high serum exosomal circCCDC66 group. Conclusion Serum exosomal circCCDC66 is abnormally elevated and may serve as a promising factor for the diagnosis of and predicting prognosis in PA patients.
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Affiliation(s)
- Xiao Yue
- Department of Neurosurgery, Xijing Hospital, Air Force Medical University, Xi’an, Shaanxi, China
| | - Fengming Lan
- National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital and Shenzhen Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Shenzhen, China
| | - Weiping Liu
- Department of Neurosurgery, Xijing Hospital, Air Force Medical University, Xi’an, Shaanxi, China
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79
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Mohammed EM. Circular RNA in Multiple Sclerosis: Pathogenicity and Potential Biomarker Development: A Systematic Review. Epigenet Insights 2023; 16:25168657231213195. [PMID: 38033465 PMCID: PMC10687999 DOI: 10.1177/25168657231213195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Accepted: 10/24/2023] [Indexed: 12/02/2023] Open
Abstract
Multiple sclerosis (MS) is a complex autoimmune disorder of the CNS that affects millions of people worldwide. The causes of the disease remain unknown despite extensive efforts to understand it. CircRNAs are a unique class of endogenous non-coding RNA that are abundant, stable, conserved, and specifically expressed molecules, making them a promising biomarker of diseases. This review investigates the role of circRNA in MS pathogenicity and their potential as a biomarker through a comprehensive literature search conducted in 8 scientific databases. The studies found that there are differentially expressed circRNAs in MS patients compared to healthy controls (HC), and this difference is even more pronounced in different MS subtypes. Enrichment of circRNAs in linkage disequilibrium (LD) blocks that harbor MS-associated SNPs suggests that these SNPs manipulate the levels of circRNAs in the surrounding area, contributing to disease pathogenicity. While circRNA shows promise as an indicator or biomarker for MS disease pathology, further research is needed to fully explore its potential and impact on human biology.
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Affiliation(s)
- Eiman M Mohammed
- Kuwait Cancer Control Centre, Medical Laboratory Department, Molecular Genetics Laboratory, Ministry of Health, Shuwaikh, Kuwait
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80
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Huang Y, Xiong C, Wang C, Deng J, Zuo Z, Wu H, Xiong J, Wu X, Lu H, Hao Q, Zhou X. p53-responsive CMBL reprograms glucose metabolism and suppresses cancer development by destabilizing phosphofructokinase PFKP. Cell Rep 2023; 42:113426. [PMID: 37967006 DOI: 10.1016/j.celrep.2023.113426] [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: 04/25/2023] [Revised: 09/25/2023] [Accepted: 10/27/2023] [Indexed: 11/17/2023] Open
Abstract
Aerobic glycolysis is critical for cancer progression and can be exploited in cancer therapy. Here, we report that the human carboxymethylenebutenolidase homolog (carboxymethylenebutenolidase-like [CMBL]) acts as a tumor suppressor by reprogramming glycolysis in colorectal cancer (CRC). The anti-cancer action of CMBL is mediated through its interactions with the E3 ubiquitin ligase TRIM25 and the glycolytic enzyme phosphofructokinase-1 platelet type (PFKP). Ectopic CMBL enhances TRIM25 binding to PFKP, leading to the ubiquitination and proteasomal degradation of PFKP. Interestingly, CMBL is transcriptionally activated by p53 in response to genotoxic stress, and p53 activation represses glycolysis by promoting PFKP degradation. Remarkably, CMBL deficiency, which impairs p53's ability to inhibit glycolysis, makes tumors more sensitive to a combination therapy involving the glycolysis inhibitor 2-deoxyglucose. Taken together, our study demonstrates that CMBL suppresses CRC growth by inhibiting glycolysis and suggests a potential combination strategy for the treatment of CMBL-deficient CRC.
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Affiliation(s)
- Yingdan Huang
- Fudan University Shanghai Cancer Center and Institutes of Biomedical Sciences, Fudan University, Shanghai 200032, China; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China; Department of Lymphoma Medicine (Breast Cancer & Soft Tissue Tumor Medicine), Hubei Cancer Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430079, China
| | - Chen Xiong
- Fudan University Shanghai Cancer Center and Institutes of Biomedical Sciences, Fudan University, Shanghai 200032, China; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China
| | - Chunmeng Wang
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China; Department of Musculoskeletal Oncology, Fudan University Shanghai Cancer Center, Shanghai 200032, China
| | - Jun Deng
- Department of Oncology, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, China
| | - Zhixiang Zuo
- State Key Laboratory of Oncology in South China, Cancer Center, Collaborative Innovation Center for Cancer Medicine, School of Life Sciences, Sun Yat-sen University, Guangzhou 510060, China
| | - Huijing Wu
- Department of Lymphoma Medicine (Breast Cancer & Soft Tissue Tumor Medicine), Hubei Cancer Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430079, China
| | - Jianping Xiong
- Department of Oncology, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, China
| | - Xiaohua Wu
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China; Department of Gynecologic Oncology, Fudan University Shanghai Cancer Center, Fudan University, Shanghai 200032, China
| | - Hua Lu
- Department of Biochemistry & Molecular Biology and Tulane Cancer Center, Tulane University School of Medicine, New Orleans, LA 70112, USA
| | - Qian Hao
- Fudan University Shanghai Cancer Center and Institutes of Biomedical Sciences, Fudan University, Shanghai 200032, China; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China.
| | - Xiang Zhou
- Fudan University Shanghai Cancer Center and Institutes of Biomedical Sciences, Fudan University, Shanghai 200032, China; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China; Key Laboratory of Breast Cancer in Shanghai, Fudan University Shanghai Cancer Center, Fudan University, Shanghai 200032, China; Shanghai Key Laboratory of Medical Epigenetics, International Co-laboratory of Medical Epigenetics and Metabolism (Ministry of Science and Technology), Institutes of Biomedical Sciences, Fudan University, Shanghai 200032, China.
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81
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Guo J, Zhang H, Lin W, Lu L, Su J, Chen X. Signaling pathways and targeted therapies for psoriasis. Signal Transduct Target Ther 2023; 8:437. [PMID: 38008779 PMCID: PMC10679229 DOI: 10.1038/s41392-023-01655-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Revised: 09/10/2023] [Accepted: 09/14/2023] [Indexed: 11/28/2023] Open
Abstract
Psoriasis is a common, chronic, and inflammatory skin disease with a high burden on individuals, health systems, and society worldwide. With the immunological pathologies and pathogenesis of psoriasis becoming gradually revealed, the therapeutic approaches for this disease have gained revolutionary progress. Nevertheless, the mechanisms of less common forms of psoriasis remain elusive. Furthermore, severe adverse effects and the recurrence of disease upon treatment cessation should be noted and addressed during the treatment, which, however, has been rarely explored with the integration of preliminary findings. Therefore, it is crucial to have a comprehensive understanding of the mechanisms behind psoriasis pathogenesis, which might offer new insights for research and lead to more substantive progress in therapeutic approaches and expand clinical options for psoriasis treatment. In this review, we looked to briefly introduce the epidemiology, clinical subtypes, pathophysiology, and comorbidities of psoriasis and systematically discuss the signaling pathways involving extracellular cytokines and intracellular transmission, as well as the cross-talk between them. In the discussion, we also paid more attention to the potential metabolic and epigenetic mechanisms of psoriasis and the molecular mechanistic cascades related to its comorbidities. This review also outlined current treatment for psoriasis, especially targeted therapies and novel therapeutic strategies, as well as the potential mechanism of disease recurrence.
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Affiliation(s)
- Jia Guo
- Department of Dermatology, Xiangya Hospital, Central South University, No.87 Xiangya Road, Changsha, 410008, Hunan, China
- National Engineering Research Center of Personalized Diagnostic and Therapeutic Technology, Changsha, 410008, Hunan, China
- Hunan Key Laboratory of Skin Cancer and Psoriasis, Changsha, 410008, Hunan, China
- Hunan Engineering Research Center of Skin Health and Disease, Changsha, 410008, Hunan, China
| | - Hanyi Zhang
- Department of Dermatology, Xiangya Hospital, Central South University, No.87 Xiangya Road, Changsha, 410008, Hunan, China
- National Engineering Research Center of Personalized Diagnostic and Therapeutic Technology, Changsha, 410008, Hunan, China
- Hunan Key Laboratory of Skin Cancer and Psoriasis, Changsha, 410008, Hunan, China
- Hunan Engineering Research Center of Skin Health and Disease, Changsha, 410008, Hunan, China
| | - Wenrui Lin
- Department of Dermatology, Xiangya Hospital, Central South University, No.87 Xiangya Road, Changsha, 410008, Hunan, China
- National Engineering Research Center of Personalized Diagnostic and Therapeutic Technology, Changsha, 410008, Hunan, China
- Hunan Key Laboratory of Skin Cancer and Psoriasis, Changsha, 410008, Hunan, China
- Hunan Engineering Research Center of Skin Health and Disease, Changsha, 410008, Hunan, China
| | - Lixia Lu
- Department of Dermatology, Xiangya Hospital, Central South University, No.87 Xiangya Road, Changsha, 410008, Hunan, China
- National Engineering Research Center of Personalized Diagnostic and Therapeutic Technology, Changsha, 410008, Hunan, China
- Hunan Key Laboratory of Skin Cancer and Psoriasis, Changsha, 410008, Hunan, China
- Hunan Engineering Research Center of Skin Health and Disease, Changsha, 410008, Hunan, China
| | - Juan Su
- Department of Dermatology, Xiangya Hospital, Central South University, No.87 Xiangya Road, Changsha, 410008, Hunan, China.
- National Engineering Research Center of Personalized Diagnostic and Therapeutic Technology, Changsha, 410008, Hunan, China.
- Hunan Key Laboratory of Skin Cancer and Psoriasis, Changsha, 410008, Hunan, China.
- Hunan Engineering Research Center of Skin Health and Disease, Changsha, 410008, Hunan, China.
| | - Xiang Chen
- Department of Dermatology, Xiangya Hospital, Central South University, No.87 Xiangya Road, Changsha, 410008, Hunan, China.
- National Engineering Research Center of Personalized Diagnostic and Therapeutic Technology, Changsha, 410008, Hunan, China.
- Hunan Key Laboratory of Skin Cancer and Psoriasis, Changsha, 410008, Hunan, China.
- Hunan Engineering Research Center of Skin Health and Disease, Changsha, 410008, Hunan, China.
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82
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Mester-Tonczar J, Einzinger P, Hasimbegovic E, Kastner N, Schweiger V, Spannbauer A, Han E, Müller-Zlabinger K, Traxler-Weidenauer D, Bergler-Klein J, Gyöngyösi M, Lukovic D. A CircRNA-miRNA-mRNA Network for Exploring Doxorubicin- and Myocet-Induced Cardiotoxicity in a Translational Porcine Model. Biomolecules 2023; 13:1711. [PMID: 38136582 PMCID: PMC10741657 DOI: 10.3390/biom13121711] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Revised: 11/14/2023] [Accepted: 11/23/2023] [Indexed: 12/24/2023] Open
Abstract
Despite the widespread use of doxorubicin (DOX) as a chemotherapeutic agent, its severe cumulative cardiotoxicity represents a significant limitation. While the liposomal encapsulation of doxorubicin (Myocet, MYO) reduces cardiotoxicity, it is crucial to understand the molecular background of doxorubicin-induced cardiotoxicity. Here, we examined circular RNA expression in a translational model of pigs treated with either DOX or MYO and its potential impact on the global gene expression pattern in the myocardium. This study furthers our knowledge about the regulatory network of circRNA/miRNA/mRNA and its interaction with chemotherapeutics. Domestic pigs were treated with three cycles of anthracycline drugs (DOX, n = 5; MYO, n = 5) to induce cardiotoxicity. Untreated animals served as controls (control, n = 3). We applied a bulk mRNA-seq approach and the CIRIquant algorithm to identify circRNAs. The most differentially regulated circRNAs were validated under cell culture conditions, following forecasting of the circRNA-miRNA-mRNA network. We identified eight novel significantly regulated circRNAs from exonic and mitochondrial regions in the porcine myocardium. The forecasted circRNA-miRNA-mRNA network suggested candidate circRNAs that sponge miR-17, miR-15b, miR-130b, the let-7 family, and miR125, together with their mRNA targets. The identified circRNA-miRNA-mRNA network provides an updated, coherent view of the mechanisms involved in anthracycline-induced cardiotoxicity.
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Affiliation(s)
- Julia Mester-Tonczar
- Division of Cardiology, Department of Internal Medicine II, Medical University of Vienna, 1090 Vienna, Austria; (J.M.-T.); (E.H.); (N.K.); (V.S.); (A.S.); (K.M.-Z.); (D.T.-W.); (J.B.-K.); (M.G.)
| | - Patrick Einzinger
- Research Unit of Information and Software, Institute of Information Systems Engineering, 1040 Vienna, Austria;
| | - Ena Hasimbegovic
- Division of Cardiology, Department of Internal Medicine II, Medical University of Vienna, 1090 Vienna, Austria; (J.M.-T.); (E.H.); (N.K.); (V.S.); (A.S.); (K.M.-Z.); (D.T.-W.); (J.B.-K.); (M.G.)
| | - Nina Kastner
- Division of Cardiology, Department of Internal Medicine II, Medical University of Vienna, 1090 Vienna, Austria; (J.M.-T.); (E.H.); (N.K.); (V.S.); (A.S.); (K.M.-Z.); (D.T.-W.); (J.B.-K.); (M.G.)
| | - Victor Schweiger
- Division of Cardiology, Department of Internal Medicine II, Medical University of Vienna, 1090 Vienna, Austria; (J.M.-T.); (E.H.); (N.K.); (V.S.); (A.S.); (K.M.-Z.); (D.T.-W.); (J.B.-K.); (M.G.)
| | - Andreas Spannbauer
- Division of Cardiology, Department of Internal Medicine II, Medical University of Vienna, 1090 Vienna, Austria; (J.M.-T.); (E.H.); (N.K.); (V.S.); (A.S.); (K.M.-Z.); (D.T.-W.); (J.B.-K.); (M.G.)
| | - Emilie Han
- Division of Cardiology, Department of Internal Medicine II, Medical University of Vienna, 1090 Vienna, Austria; (J.M.-T.); (E.H.); (N.K.); (V.S.); (A.S.); (K.M.-Z.); (D.T.-W.); (J.B.-K.); (M.G.)
| | - Katrin Müller-Zlabinger
- Division of Cardiology, Department of Internal Medicine II, Medical University of Vienna, 1090 Vienna, Austria; (J.M.-T.); (E.H.); (N.K.); (V.S.); (A.S.); (K.M.-Z.); (D.T.-W.); (J.B.-K.); (M.G.)
| | - Denise Traxler-Weidenauer
- Division of Cardiology, Department of Internal Medicine II, Medical University of Vienna, 1090 Vienna, Austria; (J.M.-T.); (E.H.); (N.K.); (V.S.); (A.S.); (K.M.-Z.); (D.T.-W.); (J.B.-K.); (M.G.)
| | - Jutta Bergler-Klein
- Division of Cardiology, Department of Internal Medicine II, Medical University of Vienna, 1090 Vienna, Austria; (J.M.-T.); (E.H.); (N.K.); (V.S.); (A.S.); (K.M.-Z.); (D.T.-W.); (J.B.-K.); (M.G.)
| | - Mariann Gyöngyösi
- Division of Cardiology, Department of Internal Medicine II, Medical University of Vienna, 1090 Vienna, Austria; (J.M.-T.); (E.H.); (N.K.); (V.S.); (A.S.); (K.M.-Z.); (D.T.-W.); (J.B.-K.); (M.G.)
| | - Dominika Lukovic
- Division of Cardiology, Department of Internal Medicine II, Medical University of Vienna, 1090 Vienna, Austria; (J.M.-T.); (E.H.); (N.K.); (V.S.); (A.S.); (K.M.-Z.); (D.T.-W.); (J.B.-K.); (M.G.)
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Ju L, Zhou Q, Qi Q, She Y, Cai W, Cao Y, Lu R, Shao J, Chen L. circSLCO1B7 suppresses the malignant progression of hepatocellular carcinoma via the miR-556-3p/DAB2IP axis. Aging (Albany NY) 2023; 15:13329-13344. [PMID: 38015711 DOI: 10.18632/aging.205244] [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: 08/15/2023] [Accepted: 10/08/2023] [Indexed: 11/30/2023]
Abstract
Circular RNAs (circRNAs) are noncoding RNAs with a circular colsed structure that play an important role in the occurrence and development of cancers. The functional mechanism of circRNAs as ceRNAs in hepatocellular carcinoma (HCC) and its effect on the invasion and metastasis of HCC need to be further studied. Five pairs of HCC tissues were selected for high-throughput sequencing, and 19 circRNAs with differential expression were obtained. The expression of circSLCO1B7 was obviously downregulated in 50 pairs of tumor tissues and plasma of HCC patients, which was closely related to the TNM stage, lymph node metastasis and tumor size. Cell functional experiments showed that circSLCO1B7 could inhibit cell growth, migration, invasion and promote cell apoptosis. In the regulatory mechanism, circSLCO1B7 sponged miR-556-3p to regulate the expression of the downstream target gene DAB2IP and induced the Epithelial-mesenchymal transition (EMT) progression. Our results indicated that circSLCO1B7 significantly inhibits the metastasis of HCC via the miR-556-3p/DAB2IP axis. Thus, circSLCO1B7 is a good candidate as a therapeutic target.
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Affiliation(s)
- Linling Ju
- Medical School of Nantong University, Nantong University, Affiliated Nantong Hospital 3 of Nantong University, Nantong Third People`s Hospital, Nantong 226000, Jiangsu, China
| | - Qian Zhou
- Department of Gastroenterology, Changshu Second People’s Hospital, Changshu 215500, Jiangsu, China
| | - Qianyi Qi
- Research Center of Clinical Medicine, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong 226001, Jiangsu, China
| | - Yongjun She
- Medical School of Nantong University, Nantong University, Affiliated Nantong Hospital 3 of Nantong University, Nantong Third People`s Hospital, Nantong 226000, Jiangsu, China
| | - Weihua Cai
- Medical School of Nantong University, Nantong University, Affiliated Nantong Hospital 3 of Nantong University, Nantong Third People`s Hospital, Nantong 226000, Jiangsu, China
| | - Yali Cao
- Medical School of Nantong University, Nantong University, Affiliated Nantong Hospital 3 of Nantong University, Nantong Third People`s Hospital, Nantong 226000, Jiangsu, China
| | - Rujian Lu
- Medical School of Nantong University, Nantong University, Affiliated Nantong Hospital 3 of Nantong University, Nantong Third People`s Hospital, Nantong 226000, Jiangsu, China
| | - Jianguo Shao
- Medical School of Nantong University, Nantong University, Affiliated Nantong Hospital 3 of Nantong University, Nantong Third People`s Hospital, Nantong 226000, Jiangsu, China
| | - Lin Chen
- Medical School of Nantong University, Nantong University, Affiliated Nantong Hospital 3 of Nantong University, Nantong Third People`s Hospital, Nantong 226000, Jiangsu, China
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Zhou J, Li P, Zhao X, Zhao Y, Luo J, Deng Y, Jiang N, Xiao Z, Zhang W, Zhou Y, Zhao J, Li P, Li Y, Tian Z. Circ_16601 facilitates Hippo pathway signaling via the miR-5580-5p/FGB axis to promote my-CAF recruitment in the TME and LUAD progression. Respir Res 2023; 24:276. [PMID: 37953225 PMCID: PMC10642073 DOI: 10.1186/s12931-023-02566-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Accepted: 10/17/2023] [Indexed: 11/14/2023] Open
Abstract
BACKGROUND Lung cancer represents a significant public health issue in China, given its high incidence and mortality rates. Circular RNAs (circRNAs) have been recently proposed to participate in the development and progression of tumors. Nevertheless, their particular roles in the pathogenesis of lung adenocarcinoma (LUAD), the tumor microenvironment (TME), and the underlying molecular mechanisms are still not well understood. METHODS High-throughput sequencing was used to analyze the circRNAs expression profiles in 7 pairs of human LUAD tissues. shRNA was used to knockdown the YAP1 and FGB genes. RNA sequencing and RT-qPCR were performed to classify the regulatory effects of circ_16601 in LUAD cells. The progression effect of circ_16601 on lung cancer was investigated in vitro and in vivo. RESULTS The circ_16601 is significantly elevated in LUAD tissues compared to adjacent normal lung tissues, and its high expression is positively associated with poor prognosis in LUAD patients. Additionally, circ_16601 overexpression promotes LUAD cell proliferation in vitro and increases xenograft tissue growth in mice in vivo; circ_16601 also could recruit fibroblasts to cancer associate fibroblasts. Mechanistically, circ_16601 can directly bind to miR-5580-5p, preventing its ability to degrade FGB mRNA and enhancing its stability. Subsequently, circ_16601 promotes the activation of the Hippo pathway in a YAP1-dependent manner, leading to LUAD progression. CONCLUSIONS Our findings shed valuable insights into the regulatory role of circ_16601 in LUAD progression and highlight its potential as a diagnostic and therapeutic target in LUAD. Overall, this study provides theoretical support to improve the prognosis and quality of life of patients suffering from this devastating disease.
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Affiliation(s)
- Jie Zhou
- Department of Thoracic Surgery, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
- Department of Interventional Medicine, The Second Hospital, Cheello College of Medicine, Shandong University, Jinan, Shandong, China
| | - Peiwei Li
- Institute of Medical Sciences, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Xiaogang Zhao
- Department of Thoracic Surgery, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
- Shandong Province Key Laboratory of Fundamental Research and Clinical Translation in Thoracic Cancer, Jinan, Shandong, China
| | - Yuanhao Zhao
- Department of Thoracic Surgery, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Junwen Luo
- Department of Thoracic Surgery, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Yupeng Deng
- Department of Pathology, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Ning Jiang
- Department of Thoracic Surgery, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Zhaohua Xiao
- Department of Thoracic Surgery, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Wenhao Zhang
- Department of Thoracic Surgery, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Yongjia Zhou
- Department of Thoracic Surgery, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Jiangfeng Zhao
- Department of Thoracic Surgery, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Peichao Li
- Department of Thoracic Surgery, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Yuliang Li
- Department of Interventional Medicine, The Second Hospital, Cheello College of Medicine, Shandong University, Jinan, Shandong, China.
- Institute of Interventional Oncology, Shandong University, Jinan, Shandong, China.
| | - Zhongxian Tian
- Department of Thoracic Surgery, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China.
- Shandong Province Key Laboratory of Fundamental Research and Clinical Translation in Thoracic Cancer, Jinan, Shandong, China.
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Wang Y, Zhu J, Lu X, Cheng W, Xu L, Wang X, Wang J, Yang J, Niu F, Chen W, Sun X, Li W, Wen Z, Guan H, Yan F. Development and validation of radiomics nomograms for preoperative prediction of characteristics in non-small cell lung cancer and circulating tumor cells. Medicine (Baltimore) 2023; 102:e35830. [PMID: 37932991 PMCID: PMC10627624 DOI: 10.1097/md.0000000000035830] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Accepted: 10/06/2023] [Indexed: 11/08/2023] Open
Abstract
To develop and validate 3 radiomics nomograms for preoperative prediction of pathological and progression diagnosis in non-small cell lung cancer (NSCLC) as well as circulating tumor cells (CTCs). A total of 224 and 134 patients diagnosed with NSCLC were respectively gathered in 2018 and 2019 in this study. There were totally 1197 radiomics features that were extracted and quantified from the images produced by computed tomography. Then we selected the radiomics features with predictive value by least absolute shrinkage and selection operator and combined them into radiomics signature. Logistic regression models were built using radiomics signature as the only predictor, which were then converted to nomograms for individualized predictions. Finally, the performance of the nomograms was assessed on both cohorts. Additionally, immunohistochemical correlation analysis was also performed. As for discrimination, the area under the curve of pathological diagnosis nomogram and progression diagnosis nomogram in NSCLC were both higher than 90% in the training cohort and higher than 80% in the validation cohort. The performance of the CTC-diagnosis nomogram was somehow unexpected where the area under the curve were range from 60% to 70% in both cohorts. As for calibration, nonsignificant statistics (P > .05) yielded by Hosmer-Lemeshow tests suggested no departure between model prediction and perfect fit. Additionally, decision curve analyses demonstrated the clinically usefulness of the nomograms. We developed radiomics-based nomograms for pathological, progression and CTC diagnosis prediction in NSCLC respectively. Nomograms for pathological and progression diagnosis were demonstrated well-performed to facilitate the individualized preoperative prediction, while the nomogram for CTC-diagnosis prediction needed improvement.
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Affiliation(s)
- Yang Wang
- Department of Radiology, Zhujiang Hospital, Southern Medical University, Haizhu District, Guangzhou, Guangdong, P.R. China
| | - Junkai Zhu
- State Key Laboratory of Natural Medicines, Research Center of Biostatistics and Computational Pharmacy, China Pharmaceutical University, Nanjing, P.R. China
| | - Xiaofan Lu
- State Key Laboratory of Natural Medicines, Research Center of Biostatistics and Computational Pharmacy, China Pharmaceutical University, Nanjing, P.R. China
| | - Wenxuan Cheng
- State Key Laboratory of Natural Medicines, Research Center of Biostatistics and Computational Pharmacy, China Pharmaceutical University, Nanjing, P.R. China
| | - Li Xu
- State Key Laboratory of Natural Medicines, Research Center of Biostatistics and Computational Pharmacy, China Pharmaceutical University, Nanjing, P.R. China
| | - Xin Wang
- State Key Laboratory of Natural Medicines, Research Center of Biostatistics and Computational Pharmacy, China Pharmaceutical University, Nanjing, P.R. China
| | - Jian Wang
- Department of Radiology, Zhujiang Hospital, Southern Medical University, Haizhu District, Guangzhou, Guangdong, P.R. China
| | - Jun Yang
- Department of Pathology, Nanjing Drum Tower Hospital, Nanjing, P.R. China
| | - Fengnan Niu
- Department of Pathology, Nanjing Drum Tower Hospital, Nanjing, P.R. China
| | - Wenping Chen
- Department of Radiology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, P.R. China
| | - Xu Sun
- Université Paris Cité, Paris, France
| | - Wenyi Li
- Suzhou Science & Technology Town Hospital, Suzhou, P.R. China
| | - Zhibo Wen
- Department of Radiology, Zhujiang Hospital, Southern Medical University, Haizhu District, Guangzhou, Guangdong, P.R. China
| | - Haitao Guan
- Department of Endocrinology, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, P.R. China
| | - Fangrong Yan
- State Key Laboratory of Natural Medicines, Research Center of Biostatistics and Computational Pharmacy, China Pharmaceutical University, Nanjing, P.R. China
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Niu L, Li W, Chen X, Su X, Dong J, Liao Q, Zhou X, Shi S, Sun R. 1-Monopalmitin promotes lung cancer cells apoptosis through PI3K/Akt pathway in vitro. ENVIRONMENTAL TOXICOLOGY 2023; 38:2621-2631. [PMID: 37466199 DOI: 10.1002/tox.23897] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Revised: 06/13/2023] [Accepted: 07/01/2023] [Indexed: 07/20/2023]
Abstract
Lung cancer is the leading cause of cancer-related death worldwide and non-small cell lung cancer (NSCLC) represents 85%. Mougeotia nummuloides and Spirulina major have been reported to possess anticancer properties. 1-Monopalmitin (1-Mono) is the principle active constituent in these natural plants. It is debating whether 1-Mono exerts antitumor effects. Therefore, we explored the role of 1-Mono in lung cancer in vitro. Results showed that 1-Mono significantly inhibited A549 and SPC-A1 cell proliferation, induced G2/M arrest and caspase-dependent apoptosis. Moreover, it suppressed the protein expression of inhibitors of apoptosis proteins (IAPs). It was further demonstrated that 1-Mono activated the PI3K/Akt pathway, suppression of PI3K/Akt activities with LY294002 and Wortmannin partially attenuated 1-Mono-mediated anticancer activities, indicating that 1-Mono-induced antitumor effects is dependent on PI3K/Akt pathway. 1-Mono induced cytoprotective autophagy since autophagy inhibitor Chloroquine dramatically enhanced 1-Mono-induced cytotoxicity. In summary, our results showed 1-Mono kills lung cancer through PI3K/Akt pathway, providing novel options for lung cancer administration.
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Affiliation(s)
- Lulu Niu
- Center for Scientific Research, Yunnan University of Chinese Traditional Medicine, Kunming, Yunnan, People's Republic of China
| | - Wenwen Li
- Department of Respiratory and Critical Care Medicine, First Affiliated Hospital of Kunming Medical University, Kunming, People's Republic of China
| | - Xin Chen
- Center for Scientific Research, Yunnan University of Chinese Traditional Medicine, Kunming, Yunnan, People's Republic of China
| | - Xiaosan Su
- Center for Scientific Research, Yunnan University of Chinese Traditional Medicine, Kunming, Yunnan, People's Republic of China
| | - Jingjing Dong
- Center for Scientific Research, Yunnan University of Chinese Traditional Medicine, Kunming, Yunnan, People's Republic of China
| | - Quanyang Liao
- Center for Scientific Research, Yunnan University of Chinese Traditional Medicine, Kunming, Yunnan, People's Republic of China
| | - Xuhong Zhou
- Center for Scientific Research, Yunnan University of Chinese Traditional Medicine, Kunming, Yunnan, People's Republic of China
| | - Shaoqing Shi
- Scientific Research Laboratory Center, First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, People's Republic of China
| | - Ruifen Sun
- Center for Scientific Research, Yunnan University of Chinese Traditional Medicine, Kunming, Yunnan, People's Republic of China
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87
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Xu M, Liu X, Zhou X, Qin Y, Yang L, Wen S, Qiu Y, Chen S, Tang R, Guo Y, Liu M, Sun Y. Hypoxia-induced circSTT3A enhances serine synthesis and promotes H3K4me3 modification to facilitate breast cancer stem cell formation. Pharmacol Res 2023; 197:106964. [PMID: 37865128 DOI: 10.1016/j.phrs.2023.106964] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Revised: 10/16/2023] [Accepted: 10/16/2023] [Indexed: 10/23/2023]
Abstract
Hypoxia is a key feature of tumor microenvironment that contributes to the development of breast cancer stem cells (BCSCs) with strong self-renewal properties. However, the specific mechanism underlying hypoxia in BCSC induction is not completely understood. Herein, we provide evidence that a novel hypoxia-specific circSTT3A is significantly upregulated in clinical breast cancer (BC) tissues, and is closely related to the clinical stage and poor prognosis of patients with BC. The study revealed that hypoxia-inducible factor 1 alpha (HIF1α)-regulated circSTT3A has a remarkable effect on mammosphere formation in breast cancer cells. Mechanistically, circSTT3A directly interacts with nucleotide-binding domain of heat shock protein 70 (HSP70), thereby facilitating the recruitment of phosphoglycerate kinase 1 (PGK1) via its substrate-binding domain, which reduces the ubiquitination and increases the stability of PGK1. The enhanced levels of PGK1 catalyze 1,3-diphosphoglycerate (1,3-BPG) into 3-phosphoglycerate (3-PG) leading to 3-PG accumulation and increased serine synthesis, S-adenosylmethionine (SAM) accumulation, and trimethylation of histone H3 lysine 4 (H3K4me3). The activation of the H3K4me3 contributes to BCSCs by increasing the transcriptional level of stemness-related factors. Especially, our work reveals that either loss of circSTT3A or PGK1 substantially suppresses tumor initiation and tumor growth, which dramatically increases the sensitivity of tumors to doxorubicin (DOX) in mice. Injection of PGK1-silenced spheroids with 3-PG can significantly reverse tumor initiation and growth in mice, thereby increasing tumor resistance to DOX. In conclusion, our study sheds light on the functional role of hypoxia in the maintenance of BCSCs via circSTT3A/HSP70/PGK1-mediated serine synthesis, which provides new insights into metabolic reprogramming, tumor initiation and growth. Our findings suggest that targeting circSTT3A alone or in combination with chemotherapy has potential clinical value for BC management.
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Affiliation(s)
- Ming Xu
- Key Laboratory of Laboratory Medical Diagnostics, Chinese Ministry of Education, Chongqing Medical University, Chongqing 400016, China
| | - Xiaoqi Liu
- Pediatric Research Institute, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing 400014, China
| | - Xinyue Zhou
- Key Laboratory of Laboratory Medical Diagnostics, Chinese Ministry of Education, Chongqing Medical University, Chongqing 400016, China
| | - Yilu Qin
- Chongqing Key Laboratory of Sichuan-Chongqing Co-construction for Diagnosis and Treatment of Infectious Diseases Integrated Traditional Chinese and Western Medicine, Chongqing Hospital of Traditional Chinese Medicine, Chongqing 400021, China
| | - Liping Yang
- Department of Laboratory Medicine, the Second Affiliated Hospital of Chongqing Medical University, Chongqing 400010, China
| | - Siyang Wen
- Department of Laboratory Medicine, the Second Affiliated Hospital of Chongqing Medical University, Chongqing 400010, China
| | - Yuxiang Qiu
- Key Laboratory of Laboratory Medical Diagnostics, Chinese Ministry of Education, Chongqing Medical University, Chongqing 400016, China
| | - Shanchun Chen
- Key Laboratory of Laboratory Medical Diagnostics, Chinese Ministry of Education, Chongqing Medical University, Chongqing 400016, China
| | - Rui Tang
- Key Laboratory of Laboratory Medical Diagnostics, Chinese Ministry of Education, Chongqing Medical University, Chongqing 400016, China
| | - Yuetong Guo
- Key Laboratory of Laboratory Medical Diagnostics, Chinese Ministry of Education, Chongqing Medical University, Chongqing 400016, China
| | - Manran Liu
- Key Laboratory of Laboratory Medical Diagnostics, Chinese Ministry of Education, Chongqing Medical University, Chongqing 400016, China
| | - Yan Sun
- Department of Cell Biology and Medical Genetics, Basic Medical School, Chongqing Medical University, Chongqing 400016, China.
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Guo Z, Xie Q, Wu Y, Mo H, Zhang J, He G, Li Z, Gan L, Feng L, Li T, Wang Y, Fu Y, Cai L, Li S, Yu C, Gao Y, Pan M, Fu S. Aberrant expression of circular RNA DHPR facilitates tumor growth and metastasis by regulating the RASGEF1B/RAS/MAPK axis in hepatocellular carcinoma. Cell Oncol (Dordr) 2023; 46:1333-1350. [PMID: 37099250 DOI: 10.1007/s13402-023-00814-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/10/2023] [Indexed: 04/27/2023] Open
Abstract
BACKGROUND Circular RNAs (circRNAs) are noncoding RNAs. Accumulating evidence suggests that circRNAs play a critical role in human biological processes, especially tumorigenesis, and development. However, the exact mechanisms of action of circRNAs in hepatocellular carcinoma (HCC) remain unclear. METHODS Bioinformatic tools and RT-qPCR were used to identify the role of circDHPR, a circRNA derived from the dihydropteridine reductase (DHPR) locus, in HCC and para-carcinoma tissues. Kaplan-Meier analysis and the Cox proportional hazard model were used to analyze the correlation between circDHPR expression and patient prognosis. Lentiviral vectors were used to establish stable circDHPR-overexpressing cells. In vitro and in vivo studies have shown that tumor proliferation and metastasis are affected by circDHPR. Mechanistic assays, including Western blotting, immunohistochemistry, dual-luciferase reporter assays, fluorescence in situ hybridization, and RNA immunoprecipitation, have demonstrated the molecular mechanism underlying circDHPR. RESULTS CircDHPR was downregulated in HCC, and low circDHPR expression was associated with poor overall survival and disease-free survival rates. CircDHPR overexpression inhibits tumor growth and metastasis in vitro and in vivo. Further systematic studies revealed that circDHPR binds to miR-3194-5p, an upstream regulator of RASGEF1B. This endogenous competition suppresses the silencing effect of miR-3194-5p. We confirmed that circDHPR overexpression inhibited HCC growth and metastasis by sponging miR-3194-5p to upregulate the expression of RASGEF1B, which is regarded as a suppressor of the Ras/MAPK signaling pathway. CONCLUSIONS Aberrant circDHPR expression leads to uncontrolled cell proliferation, tumorigenesis, and metastasis. CircDHPR may serve as a biomarker and therapeutic target for HCC.
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Affiliation(s)
- Zeyi Guo
- Department of Hepatobiliary Surgery II, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, 510000, P. R. China
- Research Centre for Artificial Organ and Tissue Engineering & Institute of Regenerative Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou, 510000, P. R. China
| | - Qingyu Xie
- Department of Hepatobiliary Surgery II, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, 510000, P. R. China
- Research Centre for Artificial Organ and Tissue Engineering & Institute of Regenerative Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou, 510000, P. R. China
- Center of Pancreas, Guangdong Provincial People's Hospital, Southern Medical University, Guangzhou, 510000, P. R. China
| | - Yanping Wu
- Department of Hepatobiliary Surgery II, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, 510000, P. R. China
- Research Centre for Artificial Organ and Tissue Engineering & Institute of Regenerative Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou, 510000, P. R. China
| | - Haiyu Mo
- Department of Medical Oncology, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, 510000, P. R. China
| | - Jiajun Zhang
- Department of Hepatobiliary Surgery II, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, 510000, P. R. China
- Research Centre for Artificial Organ and Tissue Engineering & Institute of Regenerative Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou, 510000, P. R. China
| | - Guolin He
- Department of Hepatobiliary Surgery II, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, 510000, P. R. China
- Research Centre for Artificial Organ and Tissue Engineering & Institute of Regenerative Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou, 510000, P. R. China
| | - Zhongzhe Li
- Department of Hepatobiliary Surgery II, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, 510000, P. R. China
- Research Centre for Artificial Organ and Tissue Engineering & Institute of Regenerative Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou, 510000, P. R. China
| | - Luxiang Gan
- Department of Hepatobiliary Surgery II, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, 510000, P. R. China
- Research Centre for Artificial Organ and Tissue Engineering & Institute of Regenerative Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou, 510000, P. R. China
| | - Lei Feng
- Department of Hepatobiliary Surgery II, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, 510000, P. R. China
- Research Centre for Artificial Organ and Tissue Engineering & Institute of Regenerative Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou, 510000, P. R. China
| | - Ting Li
- Department of Hepatobiliary Surgery II, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, 510000, P. R. China
- Research Centre for Artificial Organ and Tissue Engineering & Institute of Regenerative Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou, 510000, P. R. China
| | - Yi Wang
- Department of Hepatobiliary Surgery II, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, 510000, P. R. China
- Research Centre for Artificial Organ and Tissue Engineering & Institute of Regenerative Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou, 510000, P. R. China
| | - Yu Fu
- Department of Hepatobiliary Surgery II, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, 510000, P. R. China
- Research Centre for Artificial Organ and Tissue Engineering & Institute of Regenerative Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou, 510000, P. R. China
| | - Lei Cai
- Department of Hepatobiliary Surgery II, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, 510000, P. R. China
- Research Centre for Artificial Organ and Tissue Engineering & Institute of Regenerative Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou, 510000, P. R. China
| | - Shao Li
- Department of Hepatobiliary Surgery II, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, 510000, P. R. China
- Research Centre for Artificial Organ and Tissue Engineering & Institute of Regenerative Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou, 510000, P. R. China
| | - Chao Yu
- Department of General Surgery, Zhujiang hospital, Southern Medical University, Guangzhou, 510000, P. R. China
| | - Yi Gao
- Department of Hepatobiliary Surgery II, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, 510000, P. R. China.
- Research Centre for Artificial Organ and Tissue Engineering & Institute of Regenerative Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou, 510000, P. R. China.
| | - Mingxin Pan
- Department of Hepatobiliary Surgery II, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, 510000, P. R. China.
- Research Centre for Artificial Organ and Tissue Engineering & Institute of Regenerative Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou, 510000, P. R. China.
| | - Shunjun Fu
- Department of Hepatobiliary Surgery II, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, 510000, P. R. China.
- Research Centre for Artificial Organ and Tissue Engineering & Institute of Regenerative Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou, 510000, P. R. China.
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Ning J, Luo Y, Chen L, Xiao G, Tanzhu G, Zhou R. CircRNAs and lung cancer: Insight into their roles in metastasis. Biomed Pharmacother 2023; 166:115260. [PMID: 37633056 DOI: 10.1016/j.biopha.2023.115260] [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: 06/04/2023] [Revised: 07/28/2023] [Accepted: 07/30/2023] [Indexed: 08/28/2023] Open
Abstract
Lung cancer is the leading cause of cancer-related mortality worldwide. A major contributing factor to the poor survival rates in lung cancer is the high prevalence of metastasis at the time of diagnosis. To address this critical issue, it is imperative to investigate the mechanisms underlying lung cancer metastasis. Circular RNAs (circRNAs), a distinct type of ribonucleic acid characterized by their unique circular structure, have been implicated in the progression of various diseases. Recent studies have highlighted the close association between circRNAs and the occurrence and development of lung cancer, particularly in relation to metastasis. In this review, we provide a concise overview of the expression patterns and prognostic significance of circRNAs in lung cancer. Additionally, we summarized the current understanding of the clinical relevance of circRNAs in lung cancer metastasis. Furthermore, we systematically focused on the roles of circRNAs in each step of lung cancer metastasis, reflecting the sequential progression of this process. Notably, circRNAs exhibit dual functionality in lung cancer metastasis, acting both as facilitators and inhibitors of metastatic processes. Given their potential, circRNAs hold promise as novel biomarkers and therapeutic targets for lung cancer metastasis, warranting further investigation.
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Affiliation(s)
- Jiaoyang Ning
- Department of Oncology, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Yi Luo
- Department of Geriatric Medicine, Center of Coronary Circulation, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha 410008, China
| | - Liu Chen
- Department of Oncology, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Gang Xiao
- Department of Oncology, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Guilong Tanzhu
- Department of Oncology, Xiangya Hospital, Central South University, Changsha 410008, China.
| | - Rongrong Zhou
- Department of Oncology, Xiangya Hospital, Central South University, Changsha 410008, China; Xiangya Lung Cancer Center, Xiangya Hospital, Central South University, Changsha 410008, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410008, Hunan Province, China.
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Ma W, Wei D, Li X, Shan L, Fan H, Jin H, Song B, Zhang B. CircPCNX Promotes PDGF-BB-Induced Proliferation and Migration of Human Aortic Vascular Smooth Muscle Cells Through Regulating miR-1278/DNMT1 Axis. Cardiovasc Drugs Ther 2023; 37:877-889. [PMID: 35670983 DOI: 10.1007/s10557-022-07342-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 04/25/2022] [Indexed: 11/29/2022]
Abstract
BACKGROUND Human aortic vascular smooth muscle cells (HA-VSMCs) play vital roles in the pathogenesis of vascular diseases. Circular RNAs (circRNAs) have been reported to regulate the biological functions of HA-VSMCs. In this study, the functions of circRNA pecanex homolog (circPCNX) in platelet-derived growth factor-BB (PDGF-BB)-induced HA-VSMCs were investigated. METHODS Quantitative real-time polymerase chain reaction (qRT-PCR) was conducted to determine the expression of circPCNX, DNA methyltransferase 1 (DNMT1), and microRNA-1278 (miR-1278). 5'-Ethynyl-2'-deoxyuridine (EdU) assay, flow cytometry analysis, wound healing assay, and transwell assay were used to examine cell proliferation, cell cycle, and migration. Western blot assay was utilized to measure protein levels. RNA immunoprecipitation (RIP) assay, RNA pull down assay, and dual-luciferase reporter assay were adopted to analyze the relationships among circPCNX, miR-1278, and DNMT1. RESULTS CircPCNX was upregulated in PDGF-BB-treated HA-VSMCs in a dose- or time-dependent manner. CircPCNX knockdown alleviated PDGF-BB-induced cell proliferation, cell cycle progression, and migration in HA-VSMCs. CircPCNX knockdown could reverse PDGF-BB-induced HA-VSMC progression by regulating DNMT1. Moreover, circPCNX was identified to regulate DNMT1 expression by sponging miR-1278. Inhibition of miR-1278 reversed circPCNX knockdown-mediated effects on cell proliferation and migration in PDGF-BB-induced HA-VSMCs. MiR-1278 overexpression suppressed PDGF-BB-stimulated HA-VSMC proliferation and migration by targeting DNMT1. CONCLUSION CircPCNX promoted PDGF-BB-induced HA-VSMC proliferation and migration by elevating DNMT1 expression through sponging miR-1278.
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Affiliation(s)
- Wenbin Ma
- Department of Laboratory Medicine, The First Hospital of Qiqihar/Affiliated Qiqihar Hospital, Southern Medical University, Qiqihar, 161005, Heilongjiang, China
| | - Dongmei Wei
- Department of Traditional Chinese Geriatric Medicine, The First Hospital of Qiqihar/Affiliated Qiqihar Hospital, Southern Medical University, Qiqihar, 161005, Heilongjiang, China
| | - Xinying Li
- Department of Internal Medicine-Digestive, The First Hospital of Qiqihar/Affiliated Qiqihar Hospital, Southern Medical University, Qiqihar, 161005, Heilongjiang, China
| | - Lina Shan
- Department of Internal Medicine-Cardiovascular, The First Hospital of Qiqihar/Affiliated Qiqihar Hospital, Southern Medical University, The Fourth Department of Internal Medicine-Cardiovascular Office, 10th Floor, Building 5, South Hospital of Qiqihar First Hospital, 700 Bukui South Street, Longsha District, Qiqihar, 161005, Heilongjiang, China
| | - Hua Fan
- Department of Laboratory Medicine, The First Hospital of Qiqihar/Affiliated Qiqihar Hospital, Southern Medical University, Qiqihar, 161005, Heilongjiang, China
| | - Huixin Jin
- Department of Laboratory Medicine, The First Hospital of Qiqihar/Affiliated Qiqihar Hospital, Southern Medical University, Qiqihar, 161005, Heilongjiang, China
| | - Binghui Song
- Department of Internal Medicine-Cardiovascular, The First Hospital of Qiqihar/Affiliated Qiqihar Hospital, Southern Medical University, The Fourth Department of Internal Medicine-Cardiovascular Office, 10th Floor, Building 5, South Hospital of Qiqihar First Hospital, 700 Bukui South Street, Longsha District, Qiqihar, 161005, Heilongjiang, China
| | - Ben Zhang
- Department of Internal Medicine-Cardiovascular, The First Hospital of Qiqihar/Affiliated Qiqihar Hospital, Southern Medical University, The Fourth Department of Internal Medicine-Cardiovascular Office, 10th Floor, Building 5, South Hospital of Qiqihar First Hospital, 700 Bukui South Street, Longsha District, Qiqihar, 161005, Heilongjiang, China.
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91
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Sun C, Zhang J, Liu J, Tong J, Wang P. Hsa_circ_0017956 Acts as miR-758-3p Sponge to Facilitate the Progression of Non-small-Cell Lung Cancer by Regulating FOXP4 Expression. Mol Biotechnol 2023; 65:1715-1728. [PMID: 36763305 DOI: 10.1007/s12033-023-00661-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Accepted: 01/10/2023] [Indexed: 02/11/2023]
Abstract
Accumulating studies have demonstrated the important role of circular RNAs (circRNAs) in the progression of different human tumors, including non-small-cell lung cancer (NSCLC). The purpose of this study was to deeply study the function and mechanism of circ_0017956 in NSCLC. Real-time quantitative polymerase chain reaction (RT-qPCR) was applied to detect the expression of circ_0017956, microRNA-758-3p (miR-758-3p), and Forkhead Box P4 (FOXP4). Western blot was performed to determine the protein levels. Cell proliferation was examined by cell counting kit-8 (CCK-8) assay and 5-ethynyl-2'-deoxyuridine (EdU) assay. Flow cytometry was used to evaluate the apoptosis of NSCLC cells. Transwell assay was applied to detect cell migratory and invasive capacities. The angiogenesis ability was evaluated by tube formation experiment. The target relationship between miR-758-3p and circ_0017956 or FOXP4 was confirmed by dual-luciferase reporter assay. Animal experiment was conducted to assess the effect of circ_0017956 in vivo. Circ_0017956 and FOXP4 were upregulated, while miR-758-3p was downregulated in NSCLC tissues and cells. Silencing of circ_0017956 significantly suppressed cell proliferation, migration, invasion, and angiogenesis, but promoted cell apoptosis in NSCLC cells. Mechanically, circ_0017956 functioned as a sponge for miR-758-3p and miR-758-3p could directly interact with FOXP4. Moreover, silencing of miR-758-3p or overexpression of FOXP4 could overturn the anticancer influence of circ_0017956 interference on NSCLC cells. Besides that, circ_0017956 knockdown hindered tumor growth in vivo. Altogether, circ_0017956 promoted the progression of NSCLC by regulating FOXP4 through sponging miR-758-3p.
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Affiliation(s)
- Chengdong Sun
- Department of Infectious Diseases, Beijing Jishuitan Hospital, MD, 26-06, District 1, Meteor Garden, Huoying, Huilongguan, Changping, Beijing, 100096, People's Republic of China.
| | - Jian Zhang
- Department of Infectious Diseases, Beijing Jishuitan Hospital, MD, 26-06, District 1, Meteor Garden, Huoying, Huilongguan, Changping, Beijing, 100096, People's Republic of China
| | - Jia Liu
- Department of Infectious Diseases, Beijing Jishuitan Hospital, MD, 26-06, District 1, Meteor Garden, Huoying, Huilongguan, Changping, Beijing, 100096, People's Republic of China
| | - Jingjing Tong
- Department of Infectious Diseases, Beijing Jishuitan Hospital, MD, 26-06, District 1, Meteor Garden, Huoying, Huilongguan, Changping, Beijing, 100096, People's Republic of China
| | - Panpan Wang
- Department of Infectious Diseases, Beijing Jishuitan Hospital, MD, 26-06, District 1, Meteor Garden, Huoying, Huilongguan, Changping, Beijing, 100096, People's Republic of China
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92
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Wu B, Wang X, Yu R, Xue X. CircWHSC1 serves as a prognostic biomarker and promotes malignant progression of non-small-cell lung cancer via miR-590-5p/SOX5 axis. ENVIRONMENTAL TOXICOLOGY 2023; 38:2440-2449. [PMID: 37417879 DOI: 10.1002/tox.23879] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 04/17/2023] [Accepted: 06/23/2023] [Indexed: 07/08/2023]
Abstract
Dysregulated circWHSC1 has been shown to play potential roles in diverse cancer types, including ovarian cancer, endometrial cancer and hepatocellular carcinoma (HCC). The objective of this study was to investigate its expression, underlying role and regulatory mechanism in non-small-cell lung cancer (NSCLC). The expression of circWHSC1 was determined by real-time PCR. After knockdown of circWHSC1 expression in NSCLC cells, the proliferation, migration, and invasion were detected using CCK-8, colony formation, and Transwell assays, and the effects of circWHSC1 on NSCLC tumorigenesis in vivo was also investigated. With the help of luciferase reporter and pull-down assays, we further explored the downstream mechanism of circWHSC1 in NSCLC cells. CircWHSC1 was highly expressed in NSCLC tissues and cell lines. The inhibition of circWHSC1 suppressed the malignant properties of NSCLC cells, as evidenced by the reduction of proliferation, migration and invasion. CircWHSC1 sponged miR-590-5p and functioned as an oncogene in NSCLC by increasing sex determining region Y-boxprotein 5 (SOX5) expression. CircWHSC1 may contribute to the oncogenicity of NSCLC via the regulation of miR-590-5p/SOX5 axis, which might be a novel therapeutic target in NSCLC.
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Affiliation(s)
- Bin Wu
- Pulmonary and Critical Care Medicine, The People's Hospital of Long hua district, Shenzhen, China
- Pulmonary and Critical Care Medicine, South China Hospital of Shenzhen University, Shenzhen, China
| | - Xisheng Wang
- Medical Research Center, The People's Hospital of Long hua district, Shenzhen, China
| | - Ruilin Yu
- Pulmonary and Critical Care Medicine, The People's Hospital of Long hua district, Shenzhen, China
| | - Xingkui Xue
- Medical Research Center, The People's Hospital of Long hua district, Shenzhen, China
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Luo Y, Zhu Q, Xiang S, Wang Q, Li J, Chen X, Yan W, Feng J, Zu X. Downregulated circPOKE promotes breast cancer metastasis through activation of the USP10-Snail axis. Oncogene 2023; 42:3236-3251. [PMID: 37717099 DOI: 10.1038/s41388-023-02823-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Revised: 08/22/2023] [Accepted: 08/24/2023] [Indexed: 09/18/2023]
Abstract
Breast cancer (BC) is the most commonly diagnosed cancer and the leading cause of cancer-related death among females. Metastasis accounts for the majority of BC related deaths. One feasible strategy to solve this challenging problem is to disrupt the capabilities required for tumor metastasis. Herein, we verified a novel metastasis suppressive circRNA, circPOKE in BC. circPOKE was downregulated in primary and metastatic BC tissues and overexpression of circPOKE inhibited the metastatic potential but not the proliferative ability of BC cells in vitro and in vivo. Mechanistically, circPOKE competitively binds to USP10, and reduces its binding to Snail, a key transcriptional regulator of EMT, thereby inhibiting Snail stability via the protein-ubiquitination degradation pathway. In addition, we found that circPOKE could be secreted into the extracellular space via exosomes and that exosome-carried circPOKE significantly inhibited the invasive capabilities of BC cells in vitro and in vivo. Furthermore, the levels of circPOKE, USP10 and Snail are clinically relevant in BC, suggesting that circPOKE may be used as a potential therapeutic target for patients with BC metastasis.
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Affiliation(s)
- Yan Luo
- Cancer Research Institute, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, PR China
| | - Qingyun Zhu
- Cancer Research Institute, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, PR China
| | - Shasha Xiang
- Cancer Research Institute, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, PR China
| | - Qi Wang
- Cancer Research Institute, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, PR China
| | - Jun Li
- Cancer Research Institute, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, PR China
| | - Xiguang Chen
- Cancer Research Institute, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, PR China
| | - Wen Yan
- Cancer Research Institute, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, PR China
| | - Jianbo Feng
- Cancer Research Institute, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, PR China.
| | - Xuyu Zu
- Cancer Research Institute, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, PR China.
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Dong G, Liang Y, Chen B, Zhang T, Wang H, Chen Y, Zhang Y, Jiang F, Wang Y. N 6 -methyladenosine-modified circFUT8 competitively interacts with YTHDF2 and miR-186-5p to stabilize FUT8 mRNA to promote malignant progression in lung adenocarcinoma. Thorac Cancer 2023; 14:2962-2975. [PMID: 37669906 PMCID: PMC10569907 DOI: 10.1111/1759-7714.15086] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 08/11/2023] [Accepted: 08/14/2023] [Indexed: 09/07/2023] Open
Abstract
BACKGROUND Lung cancer is the leading cause of cancer related to mortality worldwide, and the main pathological type is lung adenocarcinoma (LUAD). Circular RNAs (circRNAs) have been reported to be modified by N6 -methyladenosine (m6A), which is involved in the progression of diverse tumors. However, the crosstalk between circRNAs and m6A modification has not been well elucidated in LUAD. METHODS MeRIP-seq and YTHDF2-RIP-seq datasets were explored to identify candidate circRNAs modified by YTHDF2. Dual-luciferase reporter assay, RIP, and rescue assays were performed to explore the relationship between circFUT8 and its parent mRNA of FUT8. In vitro and in vivo experiments were utilized to uncover the function of circFUT8. RESULTS In this study, we identified a novel m6A-modified circFUT8, derived from exon 3 of FUT8, which was elevated in tumor tissues compared with adjacent noncancerous tissues. The m6A reader YTHDF2 recognized and destabilized circFUT8 in an m6A-dependent manner. YTHDF2 also combined with the line form of FUT8 (mFUT8), and circFUT8 competitively interacted with YTHDF2, blunting its binding to mFUT8, to stabilize the mRNA level of FUT8. Additionally, circFUT8 sponged miR-186-5p to elevate the expression of mFUT8. Finally, we revealed that circFUT8 promoted the malignant progression of LUAD dependent on the oncogenic function of FUT8. CONCLUSIONS These findings identified a novel m6A-modified circFUT8 recognized and destabilized by YTHDF2, which competitively interacted with YTHDF2 and miR-186-5p to stabilize FUT8 mRNA to promote malignant progression in LUAD.
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Affiliation(s)
- Gaochao Dong
- Department of Medical Genetics, Medical SchoolNanjing UniversityNanjingChina
- Department of Thoracic SurgeryNanjing Medical University Affiliated Cancer Hospital & Jiangsu Cancer Hospital & Jiangsu Institute of Cancer ResearchNanjingChina
- Jiangsu Key Laboratory of Molecular and Translational Cancer ResearchCancer Institute of Jiangsu ProvinceNanjingChina
| | - Yingkuan Liang
- Department of Thoracic SurgeryNanjing Medical University Affiliated Cancer Hospital & Jiangsu Cancer Hospital & Jiangsu Institute of Cancer ResearchNanjingChina
- Jiangsu Key Laboratory of Molecular and Translational Cancer ResearchCancer Institute of Jiangsu ProvinceNanjingChina
- Department of Thoracic SurgeryThe First Affiliated Hospital of Soochow UniversitySuzhouChina
| | - Bing Chen
- Department of Thoracic SurgeryNanjing Medical University Affiliated Cancer Hospital & Jiangsu Cancer Hospital & Jiangsu Institute of Cancer ResearchNanjingChina
- Jiangsu Key Laboratory of Molecular and Translational Cancer ResearchCancer Institute of Jiangsu ProvinceNanjingChina
| | - Te Zhang
- Department of Thoracic SurgeryNanjing Medical University Affiliated Cancer Hospital & Jiangsu Cancer Hospital & Jiangsu Institute of Cancer ResearchNanjingChina
- Jiangsu Key Laboratory of Molecular and Translational Cancer ResearchCancer Institute of Jiangsu ProvinceNanjingChina
- The Fourth Clinical College of Nanjing Medical UniversityNanjingChina
| | - Hui Wang
- Department of Thoracic SurgeryNanjing Medical University Affiliated Cancer Hospital & Jiangsu Cancer Hospital & Jiangsu Institute of Cancer ResearchNanjingChina
- Jiangsu Key Laboratory of Molecular and Translational Cancer ResearchCancer Institute of Jiangsu ProvinceNanjingChina
- The Fourth Clinical College of Nanjing Medical UniversityNanjingChina
| | - Yuzhong Chen
- Department of Thoracic SurgeryNanjing Medical University Affiliated Cancer Hospital & Jiangsu Cancer Hospital & Jiangsu Institute of Cancer ResearchNanjingChina
- Jiangsu Key Laboratory of Molecular and Translational Cancer ResearchCancer Institute of Jiangsu ProvinceNanjingChina
- The Fourth Clinical College of Nanjing Medical UniversityNanjingChina
| | - Yijian Zhang
- Department of Thoracic SurgeryNanjing Medical University Affiliated Cancer Hospital & Jiangsu Cancer Hospital & Jiangsu Institute of Cancer ResearchNanjingChina
- Jiangsu Key Laboratory of Molecular and Translational Cancer ResearchCancer Institute of Jiangsu ProvinceNanjingChina
- The Fourth Clinical College of Nanjing Medical UniversityNanjingChina
| | - Feng Jiang
- Department of Thoracic SurgeryNanjing Medical University Affiliated Cancer Hospital & Jiangsu Cancer Hospital & Jiangsu Institute of Cancer ResearchNanjingChina
- Jiangsu Key Laboratory of Molecular and Translational Cancer ResearchCancer Institute of Jiangsu ProvinceNanjingChina
- The Fourth Clinical College of Nanjing Medical UniversityNanjingChina
| | - Yaping Wang
- Department of Medical Genetics, Medical SchoolNanjing UniversityNanjingChina
- Jiangsu Key Laboratory of Molecular Medicine, Medical SchoolNanjing UniversityNanjingChina
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95
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Ye Z, Yang J, Jiang H, Zhan X. The roles of protein ubiquitination in tumorigenesis and targeted drug discovery in lung cancer. Front Endocrinol (Lausanne) 2023; 14:1220108. [PMID: 37795365 PMCID: PMC10546409 DOI: 10.3389/fendo.2023.1220108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Accepted: 08/31/2023] [Indexed: 10/06/2023] Open
Abstract
The malignant lung cancer has a high morbidity rate and very poor 5-year survival rate. About 80% - 90% of protein degradation in human cells is occurred through the ubiquitination enzyme pathway. Ubiquitin ligase (E3) with high specificity plays a crucial role in the ubiquitination process of the target protein, which usually occurs at a lysine residue in a substrate protein. Different ubiquitination forms have different effects on the target proteins. Multiple short chains of ubiquitination residues modify substrate proteins, which are favorable signals for protein degradation. The dynamic balance adapted to physiological needs between ubiquitination and deubiquitination of intracellular proteins is beneficial to the health of the organism. Ubiquitination of proteins has an impact on many biological pathways, and imbalances in these pathways lead to diseases including lung cancer. Ubiquitination of tumor suppressor protein factors or deubiquitination of tumor carcinogen protein factors often lead to the progression of lung cancer. Ubiquitin proteasome system (UPS) is a treasure house for research and development of new cancer drugs for lung cancer, especially targeting proteasome and E3s. The ubiquitination and degradation of oncogene proteins with precise targeting may provide a bright prospect for drug development in lung cancer; Especially proteolytic targeted chimerism (PROTAC)-induced protein degradation technology will offer a new strategy in the discovery and development of new drugs for lung cancer.
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Affiliation(s)
- Zhen Ye
- Medical Science and Technology Innovation Center, Shandong Key Laboratory of Radiation Oncology, Shandong Cancer Hospital and Institute, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, Shandong, China
- School of Clinical and Basic Medicine, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, Shandong, China
| | - Jingru Yang
- Medical Science and Technology Innovation Center, Shandong Key Laboratory of Radiation Oncology, Shandong Cancer Hospital and Institute, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, Shandong, China
| | - Hanming Jiang
- School of Clinical and Basic Medicine, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, Shandong, China
| | - Xianquan Zhan
- Medical Science and Technology Innovation Center, Shandong Key Laboratory of Radiation Oncology, Shandong Cancer Hospital and Institute, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, Shandong, China
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DU WEI, YIN FANG, ZHONG YATING, LUO MINJIE, WANG ZHEN, LIN PENG, LIU QING, YANG HAN. CircUCP2 promotes the tumor progression of non-small cell lung cancer through the miR-149/UCP2 pathway. Oncol Res 2023; 31:929-936. [PMID: 37744277 PMCID: PMC10513941 DOI: 10.32604/or.2023.030611] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Accepted: 05/26/2023] [Indexed: 09/26/2023] Open
Abstract
Non-small cell lung cancer (NSCLC) is a highly lethal cancer, and better treatments are urgently needed. Many studies have implicated circular RNAs (circRNAs) in the progression of multiple malignant tumors. Nonetheless, the functions of circRNAs in NSCLC remain unclear. To study new targets for the treatment of NSCLC, circRNA expression profiling was performed on NSCLC tissues and para-carcinoma nonmalignant tissues. RNA was isolated and used for circRNA sequencing. Biological studies were performed in vitro and in vivo to determine the functions of circRNAs in NSCLC, including their functions in cell proliferation and migration. How circRNAs function in NSCLC was explored to clarify the underlying regulatory mechanisms. We found that circUCP2 was upregulated in NSCLC tissues compared with neighboring nonmalignant tissues. circUCP2 promoted the proliferation and metastasis of NSCLC cells. circUCP2 promoted NSCLC progression by sponging miR-149 and upregulating UCP2. The circUCP2/miR-149/UCP2 axis accelerates the progression of NSCLC, and circUCP2 may therefore be a novel diagnostic biomarker for the progression of NSCLC.
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Affiliation(s)
- WEI DU
- Department of Pathology, The First People’s Hospital of Changde City, Changde, 415000, China
| | - FANG YIN
- Department of Pathology, The First People’s Hospital of Changde City, Changde, 415000, China
| | - YATING ZHONG
- Department of Pathology, The First People’s Hospital of Changde City, Changde, 415000, China
| | - MINJIE LUO
- Department of Pathology, The First People’s Hospital of Changde City, Changde, 415000, China
| | - ZHEN WANG
- State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Guangzhou, 510000, China
| | - PENG LIN
- State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Guangzhou, 510000, China
| | - QING LIU
- State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Guangzhou, 510000, China
| | - HAN YANG
- State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Guangzhou, 510000, China
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97
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Zhao Z, Yang W, Kong R, Zhang Y, Li L, Song Z, Chen H, Luo Y, Zhang T, Cheng C, Li G, Liu D, Geng X, Chen H, Wang Y, Pan S, Hu J, Sun B. circEIF3I facilitates the recruitment of SMAD3 to early endosomes to promote TGF-β signalling pathway-mediated activation of MMPs in pancreatic cancer. Mol Cancer 2023; 22:152. [PMID: 37689715 PMCID: PMC10492306 DOI: 10.1186/s12943-023-01847-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Accepted: 08/22/2023] [Indexed: 09/11/2023] Open
Abstract
BACKGROUND Among digestive tract tumours, pancreatic ductal adenocarcinoma (PDAC) shows the highest mortality trend. Moreover, although PDAC metastasis remains a leading cause of cancer-related deaths, the biological mechanism is poorly understood. Recent evidence demonstrates that circular RNAs (circRNAs) play important roles in PDAC progression. METHODS Differentially expressed circRNAs in normal and PDAC tissues were screened via bioinformatics analysis. Sanger sequencing, RNase R and actinomycin D assays were performed to confirm the loop structure of circEIF3I. In vitro and in vivo functional experiments were conducted to assess the role of circEIF3I in PDAC. MS2-tagged RNA affinity purification, mass spectrometry, RNA immunoprecipitation, RNA pull-down assay, fluorescence in situ hybridization, immunofluorescence and RNA-protein interaction simulation and analysis were performed to identify circEIF3I-interacting proteins. The effects of circEIF3I on the interactions of SMAD3 with TGFβRI or AP2A1 were measured through co-immunoprecipitation and western blotting. RESULTS A microarray data analysis showed that circEIF3I was highly expressed in PDAC cells and correlated with TNM stage and poor prognosis. Functional experiments in vitro and in vivo revealed that circEIF3I accelerated PDAC cells migration, invasion and metastasis by increasing MMPs expression and activity. Mechanistic research indicated that circEIF3I binds to the MH2 domain of SMAD3 and increases SMAD3 phosphorylation by strengthening the interactions between SMAD3 and TGFβRI on early endosomes. Moreover, AP2A1 binds with circEIF3I directly and promotes circEIF3I-bound SMAD3 recruitment to TGFβRI on early endosomes. Finally, we found that circEif3i exerts biological functions in mice similar to those of circEIF3I in humans PDAC. CONCLUSIONS Our study reveals that circEIF3I promotes pancreatic cancer progression. circEIF3I is a molecular scaffold that interacts with SMAD3 and AP2A1 to form a ternary complex, that facilitates the recruitment of SMAD3 to early endosomes and then activates the TGF-β signalling pathway. Hence, circEIF3I is a potential prognostic biomarker and therapeutic target in PDAC.
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Affiliation(s)
- Zhongjie Zhao
- Department of Pancreatic and Biliary Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, 150001, Heilongjiang, China
- Key Laboratory of Hepatosplenic Surgery, Ministry of Education, The First Affiliated Hospital of Harbin Medical University, Harbin, 150001, Heilongjiang, China
| | - Wenbo Yang
- Department of Pancreatic and Biliary Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, 150001, Heilongjiang, China
- Key Laboratory of Hepatosplenic Surgery, Ministry of Education, The First Affiliated Hospital of Harbin Medical University, Harbin, 150001, Heilongjiang, China
| | - Rui Kong
- Department of Pancreatic and Biliary Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, 150001, Heilongjiang, China
- Key Laboratory of Hepatosplenic Surgery, Ministry of Education, The First Affiliated Hospital of Harbin Medical University, Harbin, 150001, Heilongjiang, China
| | - Yangyang Zhang
- Department of Pancreatic and Biliary Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, 150001, Heilongjiang, China
- Key Laboratory of Hepatosplenic Surgery, Ministry of Education, The First Affiliated Hospital of Harbin Medical University, Harbin, 150001, Heilongjiang, China
| | - Le Li
- Department of Pancreatic and Biliary Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, 150001, Heilongjiang, China
- Key Laboratory of Hepatosplenic Surgery, Ministry of Education, The First Affiliated Hospital of Harbin Medical University, Harbin, 150001, Heilongjiang, China
| | - Zengfu Song
- Department of Hepatobiliary and Pancreatic Surgery, Harbin Medical University Cancer Hospital, HarbinHeilongjiang, 150001, China
| | - Hongze Chen
- Department of Pancreatic and Biliary Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, 150001, Heilongjiang, China
- Key Laboratory of Hepatosplenic Surgery, Ministry of Education, The First Affiliated Hospital of Harbin Medical University, Harbin, 150001, Heilongjiang, China
| | - Yan Luo
- Department of Pancreatic and Biliary Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, 150001, Heilongjiang, China
- Key Laboratory of Hepatosplenic Surgery, Ministry of Education, The First Affiliated Hospital of Harbin Medical University, Harbin, 150001, Heilongjiang, China
| | - Tao Zhang
- Department of Hepatobiliary and Pancreaticosplenic Surgery, Beijing Chaoyang Hospital, Capital Medical University, Beijing, 100020, China
| | - Chundong Cheng
- Department of Pancreatic and Biliary Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, 150001, Heilongjiang, China
- Key Laboratory of Hepatosplenic Surgery, Ministry of Education, The First Affiliated Hospital of Harbin Medical University, Harbin, 150001, Heilongjiang, China
| | - Guanqun Li
- Department of Pancreatic and Biliary Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, 150001, Heilongjiang, China
- Key Laboratory of Hepatosplenic Surgery, Ministry of Education, The First Affiliated Hospital of Harbin Medical University, Harbin, 150001, Heilongjiang, China
| | - Danxi Liu
- Department of Pancreatic and Biliary Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, 150001, Heilongjiang, China
- Key Laboratory of Hepatosplenic Surgery, Ministry of Education, The First Affiliated Hospital of Harbin Medical University, Harbin, 150001, Heilongjiang, China
| | - Xinglong Geng
- Department of Pancreatic and Biliary Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, 150001, Heilongjiang, China
- Key Laboratory of Hepatosplenic Surgery, Ministry of Education, The First Affiliated Hospital of Harbin Medical University, Harbin, 150001, Heilongjiang, China
| | - Hua Chen
- Department of Pancreatic and Biliary Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, 150001, Heilongjiang, China
- Key Laboratory of Hepatosplenic Surgery, Ministry of Education, The First Affiliated Hospital of Harbin Medical University, Harbin, 150001, Heilongjiang, China
| | - Yongwei Wang
- Department of Pancreatic and Biliary Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, 150001, Heilongjiang, China
- Key Laboratory of Hepatosplenic Surgery, Ministry of Education, The First Affiliated Hospital of Harbin Medical University, Harbin, 150001, Heilongjiang, China
| | - Shangha Pan
- Key Laboratory of Hepatosplenic Surgery, Ministry of Education, The First Affiliated Hospital of Harbin Medical University, Harbin, 150001, Heilongjiang, China
| | - Jisheng Hu
- Department of Pancreatic and Biliary Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, 150001, Heilongjiang, China.
- Key Laboratory of Hepatosplenic Surgery, Ministry of Education, The First Affiliated Hospital of Harbin Medical University, Harbin, 150001, Heilongjiang, China.
| | - Bei Sun
- Department of Pancreatic and Biliary Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, 150001, Heilongjiang, China.
- Key Laboratory of Hepatosplenic Surgery, Ministry of Education, The First Affiliated Hospital of Harbin Medical University, Harbin, 150001, Heilongjiang, China.
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98
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Zhang W, Zhou B, Yang X, Zhao J, Hu J, Ding Y, Zhan S, Yang Y, Chen J, Zhang F, Zhao B, Deng F, Lin Z, Sun Q, Zhang F, Yao Z, Liu W, Li C, Liu KX. Exosomal circEZH2_005, an intestinal injury biomarker, alleviates intestinal ischemia/reperfusion injury by mediating Gprc5a signaling. Nat Commun 2023; 14:5437. [PMID: 37673874 PMCID: PMC10482849 DOI: 10.1038/s41467-023-41147-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Accepted: 08/24/2023] [Indexed: 09/08/2023] Open
Abstract
Intestinal ischemia/reperfusion (I/R) injury is a severe clinical condition without optimal diagnostic markers nor clear molecular etiological insights. Plasma exosomal circular RNAs (circRNAs) are valuable biomarkers and therapeutic targets for various diseases, but their role in intestinal I/R injury remains unknown. Here we screen the expression profile of circRNAs in intestinal tissue exosomes collected from intestinal I/R mice and identify circEZH2_005 as a significantly downregulated exosomal circRNA. In parallel, circEZH2_005 is also reduced in the plasma of clinical cardiac surgery patients who developed postoperative intestinal I/R injury. Exosomal circEZH2_005 displays a significant diagnostic value for intestinal injury induced by I/R. Mechanistically, circEZH2_005 is highly expressed in intestinal crypt cells. CircEZH2_005 upregulation promotes the proliferation of Lgr5+ stem cells by direct interaction with hnRNPA1, and enhanced Gprc5a stability, thereby alleviating I/R-induced intestinal mucosal damage. Hence, exosomal circEZH2_005 may serve as a biomarker for intestinal I/R injury and targeting the circEZH2_005/hnRNPA1/Gprc5a axis may be a potential therapeutic strategy for intestinal I/R injury.
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Affiliation(s)
- Wenjuan Zhang
- Department of Anesthesiology, Nanfang Hospital, Southern Medical University, Guangzhou, 1838 Guangzhou Avenue North, Guangzhou, 510515, China
| | - Bowei Zhou
- Department of Anesthesiology, Nanfang Hospital, Southern Medical University, Guangzhou, 1838 Guangzhou Avenue North, Guangzhou, 510515, China
| | - Xiao Yang
- Department of Anesthesiology, Nanfang Hospital, Southern Medical University, Guangzhou, 1838 Guangzhou Avenue North, Guangzhou, 510515, China
| | - Jin Zhao
- Department of Anesthesiology, Nanfang Hospital, Southern Medical University, Guangzhou, 1838 Guangzhou Avenue North, Guangzhou, 510515, China
| | - Jingjuan Hu
- Department of Anesthesiology, Nanfang Hospital, Southern Medical University, Guangzhou, 1838 Guangzhou Avenue North, Guangzhou, 510515, China
| | - Yuqi Ding
- Department of Anesthesiology, Nanfang Hospital, Southern Medical University, Guangzhou, 1838 Guangzhou Avenue North, Guangzhou, 510515, China
| | - Shuteng Zhan
- Department of Anesthesiology, Nanfang Hospital, Southern Medical University, Guangzhou, 1838 Guangzhou Avenue North, Guangzhou, 510515, China
| | - Yifeng Yang
- Department of Anesthesiology, Nanfang Hospital, Southern Medical University, Guangzhou, 1838 Guangzhou Avenue North, Guangzhou, 510515, China
| | - Jun Chen
- Department of Anesthesiology, Nanfang Hospital, Southern Medical University, Guangzhou, 1838 Guangzhou Avenue North, Guangzhou, 510515, China
| | - Fu Zhang
- Department of Anesthesiology, Nanfang Hospital, Southern Medical University, Guangzhou, 1838 Guangzhou Avenue North, Guangzhou, 510515, China
| | - Bingcheng Zhao
- Department of Anesthesiology, Nanfang Hospital, Southern Medical University, Guangzhou, 1838 Guangzhou Avenue North, Guangzhou, 510515, China
| | - Fan Deng
- Department of Anesthesiology, Nanfang Hospital, Southern Medical University, Guangzhou, 1838 Guangzhou Avenue North, Guangzhou, 510515, China
| | - Zebin Lin
- Department of Anesthesiology, Nanfang Hospital, Southern Medical University, Guangzhou, 1838 Guangzhou Avenue North, Guangzhou, 510515, China
| | - Qishun Sun
- Department of Anesthesiology, Nanfang Hospital, Southern Medical University, Guangzhou, 1838 Guangzhou Avenue North, Guangzhou, 510515, China
| | - Fangling Zhang
- Department of Anesthesiology, Nanfang Hospital, Southern Medical University, Guangzhou, 1838 Guangzhou Avenue North, Guangzhou, 510515, China
| | - Zhiwen Yao
- Department of Anesthesiology, Nanfang Hospital, Southern Medical University, Guangzhou, 1838 Guangzhou Avenue North, Guangzhou, 510515, China
| | - Weifeng Liu
- Department of Anesthesiology, Nanfang Hospital, Southern Medical University, Guangzhou, 1838 Guangzhou Avenue North, Guangzhou, 510515, China
| | - Cai Li
- Department of Anesthesiology, Nanfang Hospital, Southern Medical University, Guangzhou, 1838 Guangzhou Avenue North, Guangzhou, 510515, China.
| | - Ke-Xuan Liu
- Department of Anesthesiology, Nanfang Hospital, Southern Medical University, Guangzhou, 1838 Guangzhou Avenue North, Guangzhou, 510515, China.
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99
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Lin Z, Lv D, Liao X, Peng R, Liu H, Wu T, Wu K, Sun Y, Zhang Z. CircUBXN7 promotes macrophage infiltration and renal fibrosis associated with the IGF2BP2-dependent SP1 mRNA stability in diabetic kidney disease. Front Immunol 2023; 14:1226962. [PMID: 37744330 PMCID: PMC10516575 DOI: 10.3389/fimmu.2023.1226962] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Accepted: 07/20/2023] [Indexed: 09/26/2023] Open
Abstract
Introduction Inflammatory cell infiltration is a novel hallmark of diabetic kidney disease (DKD), in part, by activated macrophages. Macrophage-to-tubular epithelial cell communication may play an important role in renal fibrosis. Circular RNAs (circRNAs) have been reported in the pathogenesis of various human diseases involving macrophages activation, including DKD. However, the exact mechanism of circRNAs in macrophage infiltration and renal fibrosis of DKD remains obscure. Methods In our study, a novel circRNA circUBXN7 was identified in DKD patients using microarray. The function of circUBXN7 in vitro and in vivo was investigated by qRT-PCR, western blot, and immunofluorescence. Finally, a dual-luciferase reporter assay, ChIP, RNA pull-down, RNA immunoprecipitation and rescue experiments were performed to investigate the mechanism of circUBXN7. Results We demonstrated that the expression of circUBXN7 was significantly upregulated in the plasma of DKD patients and correlated with renal function, which might serve as an independent biomarker for DKD patients. According to investigations, ectopic expression of circUBXN7 promoted macrophage activation, EMT and fibrosis in vitro, and increased macrophage infiltration, EMT, fibrosis and proteinuria in vivo. Mechanistically, circUBXN7 was transcriptionally upregulated by transcription factor SP1 and could reciprocally promote SP1 mRNA stability and activation via directly binding to the m6A-reader IGF2BP2 in DKD. Conclusion CircUBXN7 is highly expressed in DKD patients may provide the potential biomarker and therapeutic target for DKD.
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Affiliation(s)
- Ziyue Lin
- Department of Nephrology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
- Department of Cell Biology and Genetics, Chongqing Medical University, Chongqing, China
| | - Dan Lv
- Department of Nephrology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
- Department of Cell Biology and Genetics, Chongqing Medical University, Chongqing, China
| | - Xiaohui Liao
- Department of Nephrology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Rui Peng
- Department of Bioinformatics, Chongqing Medical University, Chongqing, China
| | - Handeng Liu
- Center of Teaching and Learning, Chongqing Medical University, Chongqing, China
| | - Tianhui Wu
- Department of Cell Biology and Genetics, Chongqing Medical University, Chongqing, China
| | - Keqian Wu
- Department of Cell Biology and Genetics, Chongqing Medical University, Chongqing, China
| | - Yan Sun
- Department of Nephrology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
- Department of Cell Biology and Genetics, Chongqing Medical University, Chongqing, China
| | - Zheng Zhang
- Department of Nephrology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
- Department of Cell Biology and Genetics, Chongqing Medical University, Chongqing, China
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100
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Hu J, Xue C, Wang Q. N 6-methyladenosine modification: an important player in the tumor immune microenvironment. Biomed Pharmacother 2023; 165:115171. [PMID: 37494788 DOI: 10.1016/j.biopha.2023.115171] [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: 06/04/2023] [Revised: 07/05/2023] [Accepted: 07/12/2023] [Indexed: 07/28/2023] Open
Abstract
The decoration of RNA with N6-methyladenosine (m6A) is a reversible post-transcriptional modification that plays an important regulatory role in all eukaryotic life activities. The m6A modification of RNA regulates the development and progression of tumors, including bladder cancer, melanoma, Lewis lung carcinoma, and hepatocellular carcinoma. The tumor immune microenvironment (TIME) includes immune cells, cytokines, and cell surface molecules, which interact with each other and ultimately determine the flow of tumor immunity. The onset of cancer implies that the TIME has been reshaped into a pro-tumor state. The key to cancer treatment lies in reshaping the TIME to reset the anti-tumor immune response. Here, we have reviewed how RNA m6A modification affects the TIME, and discussed the merits of using m6A regulator inhibitors as an individual treatment strategy as well as in combination with immune checkpoint blockade therapy.
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Affiliation(s)
- Jiaxiang Hu
- Institute of Immunology, Zhejiang University School of Medicine, Hangzhou 310058, China; Liangzhu Laboratory, Zhejiang University Medical Center, 1369 West Wenyi Road, Hangzhou 311121, China; The Key Laboratory for Immunity and Inflammatory Diseases of Zhejiang Province, Hangzhou 310058, China
| | - Chen Xue
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Qingqing Wang
- Institute of Immunology, Zhejiang University School of Medicine, Hangzhou 310058, China; Liangzhu Laboratory, Zhejiang University Medical Center, 1369 West Wenyi Road, Hangzhou 311121, China; The Key Laboratory for Immunity and Inflammatory Diseases of Zhejiang Province, Hangzhou 310058, China.
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