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Tan X, Su X, Wang Y, Liang W, Wang D, Huo D, Wang H, Qi Y, Zhang W, Han L, Zhang D, Wang M, Xu J, Feng H. RBM5 induces motor neuron apoptosis in hSOD1 G93A-related amyotrophic lateral sclerosis by inhibiting Rac1/AKT pathways. Brain Res Bull 2024; 216:111049. [PMID: 39142444 DOI: 10.1016/j.brainresbull.2024.111049] [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: 06/03/2024] [Revised: 07/26/2024] [Accepted: 08/11/2024] [Indexed: 08/16/2024]
Abstract
Amyotrophic lateral sclerosis (ALS) is a fatal neurodegenerative disorder distinguished by gradual depletion of motor neurons. RNA binding motif protein 5 (RBM5), an abundantly expressed RNA-binding protein, plays a critical role in the process of cellular death. However, little is known about the role of RBM5 in the pathogenesis of ALS. Here, we found that RBM5 was upregulated in ALS hSOD1G93A-NSC34 cell models and hSOD1G93A mice due to a reduction of miR-141-5p. The upregulation of RBM5 increased the apoptosis of motor neurons by inhibiting Rac1-mediated neuroprotection. In contrast, genetic knockdown of RBM5 rescued motor neurons from hSOD1G93A-induced degeneration by activating Rac1 signaling. The neuroprotective effect of RBM5-knockdown was significantly inhibited by the Rac1 inhibitor, NSC23766. These findings suggest that RBM5 could potentially serve as a therapeutic target in ALS by activating the Rac1 signalling.
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Affiliation(s)
- Xingli Tan
- Department of Neurology, The First Affiliated Hospital of Harbin Medical University, Harbin 150000, China
| | - Xiaoli Su
- Department of Neurology, The First Affiliated Hospital of Harbin Medical University, Harbin 150000, China
| | - Ying Wang
- Department of Neurology, The First Affiliated Hospital of Harbin Medical University, Harbin 150000, China
| | - Weiwei Liang
- Department of Neurology, The First Affiliated Hospital of Harbin Medical University, Harbin 150000, China; Department of Neurology, The Second Affiliated Hospital of Harbin Medical University, Harbin 150000, China
| | - Di Wang
- Department of Neurology, The First Affiliated Hospital of Harbin Medical University, Harbin 150000, China
| | - Di Huo
- Department of Neurology, The First Affiliated Hospital of Harbin Medical University, Harbin 150000, China
| | - Hongyong Wang
- Department of Neurology, The First Affiliated Hospital of Harbin Medical University, Harbin 150000, China
| | - Yan Qi
- Department of Neurology, The Second Affiliated Hospital of Shanxi Medical University, Taiyuan 030000, China
| | - Wenmo Zhang
- Department of Neurology, The First Affiliated Hospital of Harbin Medical University, Harbin 150000, China
| | - Ling Han
- Department of Neurology, The First Affiliated Hospital of Harbin Medical University, Harbin 150000, China
| | - Dongmei Zhang
- Department of Neurology, The First Affiliated Hospital of Harbin Medical University, Harbin 150000, China
| | - Ming Wang
- Department of Neurology, The First Affiliated Hospital of Harbin Medical University, Harbin 150000, China
| | - Jing Xu
- Department of Neurology, The First Affiliated Hospital of Harbin Medical University, Harbin 150000, China
| | - Honglin Feng
- Department of Neurology, The First Affiliated Hospital of Harbin Medical University, Harbin 150000, China.
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Zhong J, Liu J, Zheng Y, Xie X, He Q, Zhong W, Wu Q. miR-938 rs2505901 T>C polymorphism increases Hirschsprung disease risk: a case-control study of Chinese children. Per Med 2021; 18:551-558. [PMID: 34761964 DOI: 10.2217/pme-2021-0001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Aim: To explore the association between miR-938 rs2505901 T>C polymorphism and Hirschsprung disease (HSCR) risk in Chinese children. Materials & Methods: We conducted a case-control study in a Chinese population with 1381 cases and 1457 controls. The associated correlation strengths were assessed by adjusted odds ratios (AORs) and 95% CIs. Results: The results revealed that the rs2505901 TC and rs2505901 TC/CC genotype were related to an increased HSCR risk compared to the risk contributed by the rs2505901 TT genotype. A stratification analysis showed that the rs2505901 TC/CC genotype promoted the progression of HSCR more significantly in patients with the short-segment HSCR subtype. Conclusion: Our study indicated that miR-938 rs2505901 T>C polymorphism is significantly associated with HSCR risk in Chinese children. This result needs to be confirmed with well-designed studies.
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Affiliation(s)
- Jun Zhong
- Department of Pediatric Surgery, Guangzhou Institute of Pediatrics, Guangdong Provincial Key Laboratory of Research in Structural Birth Defect Disease, Guangzhou Women & Children's Medical Center, Guangzhou Medical University, Guangzhou 510623, Guangdong, China
| | - Jiabin Liu
- Department of Pediatric Surgery, Guangzhou Institute of Pediatrics, Guangdong Provincial Key Laboratory of Research in Structural Birth Defect Disease, Guangzhou Women & Children's Medical Center, Guangzhou Medical University, Guangzhou 510623, Guangdong, China
| | - Yi Zheng
- Department of Pediatric Surgery, Guangzhou Institute of Pediatrics, Guangdong Provincial Key Laboratory of Research in Structural Birth Defect Disease, Guangzhou Women & Children's Medical Center, Guangzhou Medical University, Guangzhou 510623, Guangdong, China
| | - Xiaoli Xie
- Department of Pediatric Surgery, Guangzhou Institute of Pediatrics, Guangdong Provincial Key Laboratory of Research in Structural Birth Defect Disease, Guangzhou Women & Children's Medical Center, Guangzhou Medical University, Guangzhou 510623, Guangdong, China
| | - Qiuming He
- Department of Pediatric Surgery, Guangzhou Institute of Pediatrics, Guangdong Provincial Key Laboratory of Research in Structural Birth Defect Disease, Guangzhou Women & Children's Medical Center, Guangzhou Medical University, Guangzhou 510623, Guangdong, China
| | - Wei Zhong
- Department of Pediatric Surgery, Guangzhou Institute of Pediatrics, Guangdong Provincial Key Laboratory of Research in Structural Birth Defect Disease, Guangzhou Women & Children's Medical Center, Guangzhou Medical University, Guangzhou 510623, Guangdong, China
| | - Qiang Wu
- Department of Pediatric Surgery, Guangzhou Institute of Pediatrics, Guangdong Provincial Key Laboratory of Research in Structural Birth Defect Disease, Guangzhou Women & Children's Medical Center, Guangzhou Medical University, Guangzhou 510623, Guangdong, China
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Liu Y, Liu X, Lin C, Jia X, Zhu H, Song J, Zhang Y. Noncoding RNAs regulate alternative splicing in Cancer. J Exp Clin Cancer Res 2021; 40:11. [PMID: 33407694 PMCID: PMC7789004 DOI: 10.1186/s13046-020-01798-2] [Citation(s) in RCA: 93] [Impact Index Per Article: 31.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Accepted: 12/03/2020] [Indexed: 12/14/2022] Open
Abstract
AS (alternative splicing) is a fundamental process by which a gene can generate multiple distinct mRNA transcripts to increase protein diversity. Defects in AS influence the occurrence and development of many diseases, including cancers, and are frequently found to participate in various aspects of cancer biology, such as promoting invasion, metastasis, apoptosis resistance and drug resistance. NcRNAs (noncoding RNAs) are an abundant class of RNAs that do not encode proteins. NcRNAs include miRNAs (microRNAs), lncRNAs (long noncoding RNAs), circRNAs (circular RNAs) and snRNAs (small nuclear RNAs) and have been proven to act as regulatory molecules that mediate cancer processes through AS. NcRNAs can directly or indirectly influence a plethora of molecular targets to regulate cis-acting elements, trans-acting factors, or pre-mRNA transcription at multiple levels, affecting the AS process and generating alternatively spliced isoforms. Consequently, ncRNA-mediated AS outcomes affect multiple cellular signaling pathways that promote or suppress cancer progression. In this review, we summarize the current mechanisms by which ncRNAs regulate AS in cancers and discuss their potential clinical applications as biomarkers and therapeutic targets.
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Affiliation(s)
- Yunze Liu
- Department of General Surgery, Affiliated Hospital of Xuzhou Medical University, Xuzhou, 221000, China
- Department of Traditional Chinese Medicine, Affiliated Hospital of Xuzhou Medical University, Xuzhou, 221000, China
| | - Xin Liu
- Department of Endocrinology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, 221000, China
| | - Changwei Lin
- Department of Gastrointestinal Surgery, the Third XiangYa Hospital of Central South University, Changsha, 410013, China
| | - Xianhong Jia
- Department of Traditional Chinese Medicine, Affiliated Hospital of Xuzhou Medical University, Xuzhou, 221000, China
| | - Hongmei Zhu
- Department of Traditional Chinese Medicine, Affiliated Hospital of Xuzhou Medical University, Xuzhou, 221000, China
| | - Jun Song
- Department of General Surgery, Affiliated Hospital of Xuzhou Medical University, Xuzhou, 221000, China.
| | - Yi Zhang
- Department of General Surgery, Affiliated Hospital of Xuzhou Medical University, Xuzhou, 221000, China.
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Li J, He X, Wu X, Liu X, Huang Y, Gong Y. miR-139-5p Inhibits Lung Adenocarcinoma Cell Proliferation, Migration, and Invasion by Targeting MAD2L1. COMPUTATIONAL AND MATHEMATICAL METHODS IN MEDICINE 2020; 2020:2953598. [PMID: 33204298 PMCID: PMC7657690 DOI: 10.1155/2020/2953598] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Accepted: 07/22/2020] [Indexed: 12/11/2022]
Abstract
BACKGROUND miR-139-5p is lowly expressed in various human cancers and exerts its antitumor effect through different molecular mechanisms, yet the molecular mechanism of miR-139-5p in lung adenocarcinoma (LUAD) remains to be further elucidated. The study is aimed at investigating the role and the regulatory mechanism of miR-139-5p in LUAD progression. METHODS Differential analysis was performed on miRNA expression data in the TCGA-LUAD dataset. qRT-PCR was employed to detect the transcription levels of miR-139-5p and MAD2L1 in LUAD cells, while western blot was carried out for the detection of MAD2L1 protein expression. CCK-8 and Transwell assays were implemented to assess LUAD cell proliferation, migration, and invasion. A dual-luciferase reporter gene assay was conducted to verify the direct targeting relationship between miR-139-5p and MAD2L1. RESULTS miR-139-5p was significantly downregulated in LUAD cells in comparison with that in human normal bronchial epithelial cells. Overexpressing miR-139-5p inhibited LUAD cell proliferation, migration, and invasion, while opposite results could be observed when miR-139-5p was inhibited. MAD2L1 was identified as a direct target of miR-139-5p in LUAD. Besides, the inhibitory effect of miR-139-5p overexpression on LUAD cell proliferation, migration, and invasion was attenuated by overexpressing MAD2L1. CONCLUSION Our study suggests that miR-139-5p is lowly expressed in LUAD cells and inhibits LUAD cell proliferation, migration, and invasion by targeted suppressing MAD2L1 expression. It is of potential significance for the prognosis and treatment of LUAD.
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Affiliation(s)
- Jianfeng Li
- Department of Thoracic Surgery, Tangshan People's Hospital, Tangshan, China
| | - Xi He
- Department of Thoracic Surgery, Tangshan People's Hospital, Tangshan, China
| | - Xiaotang Wu
- Shanghai Engineering Research Center of Pharmaceutical Translation, Shanghai, China
| | - Xiaohui Liu
- Department of Thoracic Surgery, Tangshan People's Hospital, Tangshan, China
| | - Yixiong Huang
- Department of Thoracic Surgical Oncology, Fujian Cancer Hospital & Fujian Medical University Cancer Hospital, Fujian, China
| | - Yuchen Gong
- Department of Respiration, China Coast Guard of the Chinese People's Armed Police Force Hospital, Zhejiang Province, China
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