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Shi Y, Men X, Wang F, Li X, Zhang B. Role of long non-coding RNAs (lncRNAs) in gastric cancer metastasis: A comprehensive review. Pathol Res Pract 2024; 262:155484. [PMID: 39180802 DOI: 10.1016/j.prp.2024.155484] [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: 01/15/2024] [Revised: 07/17/2024] [Accepted: 07/22/2024] [Indexed: 08/27/2024]
Abstract
One of the greatest frequent types of malignancy is gastric cancer (GC). Metastasis, an essential feature of stomach cancer, results in a high rate of mortality and a poor prognosis. However, metastasis biological procedures are not well recognized. Long non-coding RNAs (lncRNAs) have a role in numerous gene regulation pathways via epigenetic modification as well as transcriptional and post-transcriptional control. LncRNAs have a role in a variety of disorders, such as cardiovascular disease, Alzheimer's, and cancer. LncRNAs are substantially related to GC incidence, progression, metastasis and drug resistance. Several research released information on the molecular processes of lncRNAs in GC pathogenesis. By interacting with a gene's promoter or enhancer region to influence gene expression, lncRNAs can operate as an oncogene or a tumor suppressor. This review includes the lncRNAs associated with metastasis of GC, which may give insights into the processes as well as potential clues for GC predicting and tracking.
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Affiliation(s)
- Yue Shi
- Department of Microbiology and Immunology, Changchun University of Chinese Medicine, Jilin 130117, PR China.
| | - Xiaoping Men
- Department of Clinical Laboratory, The First Affiliated Hospital to Changchun University of Chinese Medicine, Jilin 130021, PR China.
| | - Fang Wang
- Department of Microbiology and Immunology, Changchun University of Chinese Medicine, Jilin 130117, PR China.
| | - Xueting Li
- Experimental Center, Changchun University of Chinese Medicine, Jilin 130021, PR China.
| | - Biao Zhang
- School of Health Management, Changchun University of Chinese Medicine, Jilin 130117, PR China.
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Xin Z, Hu C, Zhang C, Liu M, Li J, Sun X, Hu Y, Liu X, Wang K. LncRNA-HMG incites colorectal cancer cells to chemoresistance via repressing p53-mediated ferroptosis. Redox Biol 2024; 77:103362. [PMID: 39307047 PMCID: PMC11447409 DOI: 10.1016/j.redox.2024.103362] [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: 08/13/2024] [Revised: 09/11/2024] [Accepted: 09/17/2024] [Indexed: 10/06/2024] Open
Abstract
Upon chemotherapy, excessive reactive oxygen species (ROS) often lead to the production of massive lipid peroxides in cancer cells and induce cell death, namely ferroptosis. The elimination of ROS is pivotal for tumor cells to escape from ferroptosis and acquire drug resistance. Nevertheless, the precise functions of long non-coding RNAs (lncRNAs) in ROS metabolism and tumor drug-resistance remain elusive. In this study, we identify LncRNA-HMG as a chemoresistance-related lncRNA in colorectal cancer (CRC) by high-throughput screening. Abnormally high expression of LncRNA-HMG predicts poorer prognosis in CRC patients. Concurrently, we found that LncRNA-HMG protects CRC cells from ferroptosis upon chemotherapy, thus enhancing drug resistance of CRC cells. LncRNA-HMG binds to p53 and facilitates MDM2-mediated degradation of p53. Decreased p53 induces upregulation of SLC7A11 and VKORC1L1, which contribute to increase the supply of reducing agents and eliminate excessive ROS. Consequently, CRC cells escape from ferroptosis and acquire chemoresistance. Importantly, inhibition of LncRNA-HMG by anti-sense oligo (ASO) dramatically sensitizes CRC cells to chemotherapy in patient-derived xenograft (PDX) model. LncRNA-HMG is also a transcriptional target of β-catenin/TCF and activated Wnt signals trigger the marked upregulation of LncRNA-HMG. Collectively, these findings demonstrate that LncRNA-HMG promotes CRC chemoresistance and might be a prognostic or therapeutic target for CRC.
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Affiliation(s)
- Zechang Xin
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Hepatopancreatobiliary Surgery Department I, Peking University Cancer Hospital & Institute, Beijing, 100142, China
| | - Chenyu Hu
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Hepatopancreatobiliary Surgery Department I, Peking University Cancer Hospital & Institute, Beijing, 100142, China
| | - Chunfeng Zhang
- Department of Medical Genetics, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, 100191, China
| | - Ming Liu
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Hepatopancreatobiliary Surgery Department I, Peking University Cancer Hospital & Institute, Beijing, 100142, China
| | - Juan Li
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Hepatopancreatobiliary Surgery Department I, Peking University Cancer Hospital & Institute, Beijing, 100142, China
| | - Xiaoyan Sun
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Hepatopancreatobiliary Surgery Department I, Peking University Cancer Hospital & Institute, Beijing, 100142, China
| | - Yang Hu
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Hepatopancreatobiliary Surgery Department I, Peking University Cancer Hospital & Institute, Beijing, 100142, China
| | - Xiaofeng Liu
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Hepatopancreatobiliary Surgery Department I, Peking University Cancer Hospital & Institute, Beijing, 100142, China.
| | - Kun Wang
- State Key Laboratory of Holistic Integrative Management of Gastrointestinal Cancers, Beijing Key Laboratory of Carcinogenesis and Translational Research, Hepatopancreatobiliary Surgery Department I, Peking University Cancer Hospital & Institute, Beijing, 100142, China.
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Wang Z, Xue M, Liu J, Jiang H, Li F, Xu M, Wang H. ATP11A Promotes Epithelial-mesenchymal Transition in Gastric Cancer Cells via the Hippo Pathway. J Cancer 2024; 15:5477-5491. [PMID: 39247595 PMCID: PMC11375558 DOI: 10.7150/jca.97895] [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: 04/29/2024] [Accepted: 07/30/2024] [Indexed: 09/10/2024] Open
Abstract
Background: ATP11A, a P-type ATPase, functions as flippases at the plasma membrane to maintain cellular function and vitality in several cancers. However, the role of ATP11A in gastric cancer remains unknown. This study aimed to identify ATP11A related to the biological behavior of gastric cancer, and elucidate the underlying mechanism. Methods: The Cancer Genome Atlas (TCGA) and Genotype-Tissue Expression (GTEx) databases were used to analyze the expression and prognosis of ATP11A. The biofunctions of ATP11A were explored through Gene Ontology (GO), Kyoto Encyclopedia of Genes and Genomes (KEGG) and Gene Set Enrichment Analysis (GSEA). The expression of ATP11A were validated by immunohistochemistry (IHC), qRT-PCR and Western blotting. Transwell, wound healing, CCK8 and colony-formation were to detected the migration, invasion and proliferation of gastric cancer cells. The epithelial-mesenchymal transition (EMT) and Hippo pathway markers were examined by Western blotting. Results: The expression of ATP11A was higher in gastric cancer tissues than in normal tissues, and high ATP11A levels were related to worse prognosis of gastric cancer patients. Additionally, we proved that ATP11A promoted the migration, invasion and proliferation in gastric cancer cells. Furthermore, ATP11A was found to promote EMT by devitalizing the Hippo pathway. Conclusion: ATP11A promoted migration, invasion, proliferation and EMT via Hippo signaling devitalization in gastric cancer cells.
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Affiliation(s)
- Zhihua Wang
- Department of Gastroenterology, Affiliated Hospital of Jiangsu University, Jiangsu University, 438 Jiefang Road, Zhenjiang 212001, China
| | - Mingmiao Xue
- Department of Endocrinology, Affiliated Hospital of Jiangsu University, Jiangsu University, 438 Jiefang Road, Zhenjiang 212001, China
| | - Junqiang Liu
- Department of Gastroenterology, Affiliated Hospital of Jiangsu University, Jiangsu University, 438 Jiefang Road, Zhenjiang 212001, China
| | - Han Jiang
- Department of Gastroenterology, Affiliated Hospital of Jiangsu University, Jiangsu University, 438 Jiefang Road, Zhenjiang 212001, China
| | - Feifan Li
- Department of Gastroenterology, Affiliated Hospital of Jiangsu University, Jiangsu University, 438 Jiefang Road, Zhenjiang 212001, China
| | - Min Xu
- Department of Gastroenterology, Affiliated Hospital of Jiangsu University, Jiangsu University, 438 Jiefang Road, Zhenjiang 212001, China
| | - Huizhi Wang
- Department of Gastroenterology, Affiliated Hospital of Jiangsu University, Jiangsu University, 438 Jiefang Road, Zhenjiang 212001, China
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Ma A, Shi W, Chen L, Huang Z, Zhang Y, Tang Z, Jiang W, Xu M, Zhou J, Zhang W, Tang S. GRASLND regulates melanoma cell progression by targeting the miR-218-5p/STAM2 axis. J Transl Med 2024; 22:684. [PMID: 39060946 PMCID: PMC11282654 DOI: 10.1186/s12967-024-05397-z] [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: 05/04/2024] [Accepted: 06/12/2024] [Indexed: 07/28/2024] Open
Abstract
BACKGROUND Increasing evidence suggests that long noncoding RNAs (lncRNAs) play important regulatory roles in biological processes and are dysregulated in numerous tumors. The lncRNA GRASLND functions as an oncogene in many cancers, but its role in skin cutaneous melanoma (SKCM) requires further investigation. METHODS SiRNA transfection, wound - healing and transwell assays were performed to evaluate the effect of GRASLND on cellular function. RESULTS The present study demonstrated that GRASLND expression is increased in SKCM tissues and cell lines. The high expression of GRASLND was correlated with poor prognosis and immunotherapy outcomes. Knockdown of GRASLND significantly inhibited cell migration and invasion. In addition, we found that miR-218-5p directly binds to its binding site on GRASLND, and GRASLND and miR-218-5p demonstrate mutual inhibition. Furthermore, the miR-218-5p inhibitor partially eliminated the knockdown of GRASLND and inhibited its expression. We also demonstrated that GRASLND acts as a miR-218-5p sponge that positively regulates STAM2 expression in SKCM cells. CONCLUSION In summary, these data suggest that GRASLND functions by regulating miR-218-5p/STAM2 expression, suggesting an important role for the lncRNA‒miRNA-mRNA functional network and a new potential therapeutic target for SKCM.
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Affiliation(s)
- Aiwei Ma
- Department of Plastic Surgery and Burns Center, Second Affiliated Hospital, Shantou University Medical College, Shantou, Guangdong, 515051, China
- Plastic Surgery Institute of Shantou University Medical College, Shantou, Guangdong, 515051, China
- Shantou Plastic Surgery Clinical Research Center, Shantou, Guangdong, 515051, China
| | - Wenqi Shi
- Department of Plastic Surgery and Burns Center, Second Affiliated Hospital, Shantou University Medical College, Shantou, Guangdong, 515051, China
- Plastic Surgery Institute of Shantou University Medical College, Shantou, Guangdong, 515051, China
- Shantou Plastic Surgery Clinical Research Center, Shantou, Guangdong, 515051, China
| | - Liyun Chen
- Plastic Surgery Institute of Shantou University Medical College, Shantou, Guangdong, 515051, China
- Shantou Plastic Surgery Clinical Research Center, Shantou, Guangdong, 515051, China
- Research Center of Translational Medicine, Second Affiliated Hospital of Shantou University Medical College, Shantou, Guangdong, 515051, China
| | - Zijian Huang
- Department of Plastic Surgery and Burns Center, Second Affiliated Hospital, Shantou University Medical College, Shantou, Guangdong, 515051, China
- Plastic Surgery Institute of Shantou University Medical College, Shantou, Guangdong, 515051, China
- Shantou Plastic Surgery Clinical Research Center, Shantou, Guangdong, 515051, China
| | - Yiwen Zhang
- Department of Plastic Surgery and Burns Center, Second Affiliated Hospital, Shantou University Medical College, Shantou, Guangdong, 515051, China
- Plastic Surgery Institute of Shantou University Medical College, Shantou, Guangdong, 515051, China
- Shantou Plastic Surgery Clinical Research Center, Shantou, Guangdong, 515051, China
| | - Zixuan Tang
- Department of Plastic Surgery and Burns Center, Second Affiliated Hospital, Shantou University Medical College, Shantou, Guangdong, 515051, China
- Plastic Surgery Institute of Shantou University Medical College, Shantou, Guangdong, 515051, China
- Shantou Plastic Surgery Clinical Research Center, Shantou, Guangdong, 515051, China
| | - Wenshi Jiang
- Department of Plastic Surgery and Burns Center, Second Affiliated Hospital, Shantou University Medical College, Shantou, Guangdong, 515051, China
- Plastic Surgery Institute of Shantou University Medical College, Shantou, Guangdong, 515051, China
- Shantou Plastic Surgery Clinical Research Center, Shantou, Guangdong, 515051, China
| | - Mengjing Xu
- Department of Plastic Surgery and Burns Center, Second Affiliated Hospital, Shantou University Medical College, Shantou, Guangdong, 515051, China
- Plastic Surgery Institute of Shantou University Medical College, Shantou, Guangdong, 515051, China
- Shantou Plastic Surgery Clinical Research Center, Shantou, Guangdong, 515051, China
| | - Jianda Zhou
- Department of Plastic and Reconstructive Surgery, Central South University Third Xiangya Hospital, Changsha, China
| | - Wancong Zhang
- Department of Plastic Surgery and Burns Center, Second Affiliated Hospital, Shantou University Medical College, Shantou, Guangdong, 515051, China.
- Plastic Surgery Institute of Shantou University Medical College, Shantou, Guangdong, 515051, China.
- Shantou Plastic Surgery Clinical Research Center, Shantou, Guangdong, 515051, China.
| | - Shijie Tang
- Department of Plastic Surgery and Burns Center, Second Affiliated Hospital, Shantou University Medical College, Shantou, Guangdong, 515051, China.
- Plastic Surgery Institute of Shantou University Medical College, Shantou, Guangdong, 515051, China.
- Shantou Plastic Surgery Clinical Research Center, Shantou, Guangdong, 515051, China.
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Tashakori N, Kolour SSP, Ghafouri K, Ahmed SI, Kahrizi MS, Gerami R, Altafi M, Nazari A. Critical role of the long non-coding RNAs (lncRNAs) in radiotherapy (RT)-resistance of gastrointestinal (GI) cancer: Is there a way to defeat this resistance? Pathol Res Pract 2024; 258:155289. [PMID: 38703607 DOI: 10.1016/j.prp.2024.155289] [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: 02/15/2024] [Revised: 03/29/2024] [Accepted: 03/31/2024] [Indexed: 05/06/2024]
Abstract
Radiotherapy (RT) is a frequently used treatment for cervical cancer, effectively decreasing the likelihood of the disease returning in the same area and extending the lifespan of individuals with cervical cancer. Nevertheless, the primary reason for treatment failure in cancer patients is the cancer cells' resistance to radiation therapy (RT). Long non-coding RNAs (LncRNAs) are a subset of RNA molecules that do not code for proteins and are longer than 200 nucleotides. They have a significant impact on the regulation of gastrointestinal (GI) cancers biological processes. Recent research has shown that lncRNAs have a significant impact in controlling the responsiveness of GI cancer to radiation. This review provides a concise overview of the composition and operation of lncRNAs as well as the intricate molecular process behind radiosensitivity in GI cancer. Additionally, it compiles a comprehensive list of lncRNAs that are linked to radiosensitivity in such cancers. Furthermore, it delves into the potential practical implementation of these lncRNAs in modulating radiosensitivity in GI cancer.
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Affiliation(s)
- Nafiseh Tashakori
- Department of Internal Medicine, Faculty of Medicine, Tehran branch, Islamic Azad University, Tehran, Iran
| | | | - Kimia Ghafouri
- School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Sarah Ibrahem Ahmed
- Department of Anesthesia Techniques, Al-Noor University College, Nineveh, Iraq
| | | | - Reza Gerami
- Department of Radiology, Faculty of Medicine, AJA University of Medical Science, Tehran, Iran
| | - Mana Altafi
- Department of Radiology, Faculty of Biological Science and Technology, Shiraz Pardis Branch, Islamic Azad University, Shiraz, Iran.
| | - Afsaneh Nazari
- Department of Genetics, Faculty of Basic Sciences, Islamic Azad University, Zanjan Branch, Zanjan, Iran.
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Li Y, Wei X, Yang Q, Xiong A, Li X, Zou Q, Cui F, Zhang Z. msBERT-Promoter: a multi-scale ensemble predictor based on BERT pre-trained model for the two-stage prediction of DNA promoters and their strengths. BMC Biol 2024; 22:126. [PMID: 38816885 DOI: 10.1186/s12915-024-01923-z] [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: 01/09/2024] [Accepted: 05/21/2024] [Indexed: 06/01/2024] Open
Abstract
BACKGROUND A promoter is a specific sequence in DNA that has transcriptional regulatory functions, playing a role in initiating gene expression. Identifying promoters and their strengths can provide valuable information related to human diseases. In recent years, computational methods have gained prominence as an effective means for identifying promoter, offering a more efficient alternative to labor-intensive biological approaches. RESULTS In this study, a two-stage integrated predictor called "msBERT-Promoter" is proposed for identifying promoters and predicting their strengths. The model incorporates multi-scale sequence information through a tokenization strategy and fine-tunes the DNABERT model. Soft voting is then used to fuse the multi-scale information, effectively addressing the issue of insufficient DNA sequence information extraction in traditional models. To the best of our knowledge, this is the first time an integrated approach has been used in the DNABERT model for promoter identification and strength prediction. Our model achieves accuracy rates of 96.2% for promoter identification and 79.8% for promoter strength prediction, significantly outperforming existing methods. Furthermore, through attention mechanism analysis, we demonstrate that our model can effectively combine local and global sequence information, enhancing its interpretability. CONCLUSIONS msBERT-Promoter provides an effective tool that successfully captures sequence-related attributes of DNA promoters and can accurately identify promoters and predict their strengths. This work paves a new path for the application of artificial intelligence in traditional biology.
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Affiliation(s)
- Yazi Li
- School of Mathematics and Statistics, Hainan University, Haikou, 570228, China
| | - Xiaoman Wei
- School of Computer Science and Technology, Hainan University, Haikou, 570228, China
| | - Qinglin Yang
- School of Computer Science and Technology, Hainan University, Haikou, 570228, China
| | - An Xiong
- School of Computer Science and Technology, Hainan University, Haikou, 570228, China
| | - Xingfeng Li
- School of Computer Science and Technology, Hainan University, Haikou, 570228, China
| | - Quan Zou
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, 610054, China
- Yangtze Delta Region Institute (Quzhou), University of Electronic Science and Technology of China, Quzhou, 324000, China
| | - Feifei Cui
- School of Computer Science and Technology, Hainan University, Haikou, 570228, China.
| | - Zilong Zhang
- School of Computer Science and Technology, Hainan University, Haikou, 570228, China.
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Bai Y, Li J, Wei Y, Chen Z, Liu Z, Guo D, Jia X, Niu Y, Shi B, Zhang X, Zhao Z, Hu J, Han X, Wang J, Liu X, Li S. Proteome Analysis Related to Unsaturated Fatty Acid Synthesis by Interfering with Bovine Adipocyte ACSL1 Gene. Antioxidants (Basel) 2024; 13:641. [PMID: 38929080 PMCID: PMC11200461 DOI: 10.3390/antiox13060641] [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: 04/27/2024] [Revised: 05/21/2024] [Accepted: 05/22/2024] [Indexed: 06/28/2024] Open
Abstract
Unsaturated fatty acids (UFAs) in beef play a vital role in promoting human health. Long-chain fatty acyl-CoA synthase 1 (ACSL1) is a crucial gene for UFA synthesis in bovine adipocytes. To investigate the protein expression profile during UFA synthesis, we performed a proteomic analysis of bovine adipocytes by RNA interference and non-interference with ACSL1 using label-free techniques. A total of 3558 proteins were identified in both the NC and si-treated groups, of which 1428 were differentially expressed proteins (DEPs; fold change ≥ 1.2 or ≤ 0.83 and p-value < 0.05). The enrichment analysis of the DEPs revealed signaling pathways related to UFA synthesis or metabolism, including cAMP, oxytocin, fatty acid degradation, glycerol metabolism, insulin, and the regulation of lipolysis in adipocytes (p-value < 0.05). Furthermore, based on the enrichment analysis of the DEPs, we screened 50 DEPs that potentially influence the synthesis of UFAs and constructed an interaction network. Moreover, by integrating our previously published transcriptome data, this study established a regulatory network involving differentially expressed long non-coding RNAs (DELs), highlighting 21 DEPs and 13 DELs as key genes involved in UFA synthesis. These findings present potential candidate genes for further investigation into the molecular mechanisms underlying UFA synthesis in bovines, thereby offering insights to enhance the quality of beef and contribute to consumer health in future studies.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | - Zhidong Zhao
- Gansu Key Laboratory of Herbivorous Animal Biotechnology, College of Animal Science and Technology, Gansu Agricultural University, Lanzhou 730070, China; (Y.B.); (J.L.); (Y.W.); (Z.C.); (Z.L.); (D.G.); (X.J.); (Y.N.); (B.S.); (X.Z.); (X.H.); (J.W.); (X.L.); (S.L.)
| | - Jiang Hu
- Gansu Key Laboratory of Herbivorous Animal Biotechnology, College of Animal Science and Technology, Gansu Agricultural University, Lanzhou 730070, China; (Y.B.); (J.L.); (Y.W.); (Z.C.); (Z.L.); (D.G.); (X.J.); (Y.N.); (B.S.); (X.Z.); (X.H.); (J.W.); (X.L.); (S.L.)
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Wang Y, Luo J, Yang H, Liu Y. LncRNA Peg13 Alleviates Myocardial Infarction/Reperfusion Injury through Regulating MiR-34a/Sirt1-Mediated Endoplasmic Reticulum Stress. Int Heart J 2024; 65:517-527. [PMID: 38825496 DOI: 10.1536/ihj.23-453] [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] [Indexed: 06/04/2024]
Abstract
Myocardial infarction/reperfusion (I/R) injury significantly impacts the health of older individuals. We confirmed that the level of lncRNA Peg13 was downregulated in I/R injury. However, the detailed function of Peg13 in myocardial I/R injury has not yet been explored.To detect the function of Peg13, in vivo model of I/R injury was constructed. RT-qPCR was employed to investigate RNA levels, and Western blotting was performed to assess levels of endoplasmic reticulum stress and apoptosis-associated proteins. EdU staining was confirmed to assess the cell proliferation.I/R therapy dramatically produced myocardial injury, increased the infarct area, and decreased the amount of Peg13 in myocardial tissues of mice. In addition, hypoxia/reoxygenation (H/R) notably induced the apoptosis and promoted the endoplasmic reticulum (ER) stress of HL-1 cells, while overexpression of Peg13 reversed these phenomena. Additionally, Peg13 may increase the level of Sirt1 through binding to miR-34a. Upregulation of Peg13 reversed H/R-induced ER stress via regulation of miR-34a/Sirt1 axis.LncRNA Peg13 reduces ER stress in myocardial infarction/reperfusion injury through mediation of miR-34a/Sirt1 axis. Hence, our research might shed new lights on developing new strategies for the treatment of myocardial I/R injury.
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Affiliation(s)
- Yonghong Wang
- Department of Cardiovascular Medicine, The Fourth Hospital of Changsha
| | - Jian Luo
- Department of Cardiovascular Medicine, The Fourth Hospital of Changsha
| | - Huiqiong Yang
- Department of Cardiovascular Medicine, The Fourth Hospital of Changsha
| | - Yanfei Liu
- Department of Cardiovascular Medicine, The Fourth Hospital of Changsha
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Zhu Y, Huang C, Zhang C, Zhou Y, Zhao E, Zhang Y, Pan X, Huang H, Liao W, Wang X. LncRNA MIR200CHG inhibits EMT in gastric cancer by stabilizing miR-200c from target-directed miRNA degradation. Nat Commun 2023; 14:8141. [PMID: 38065939 PMCID: PMC10709323 DOI: 10.1038/s41467-023-43974-w] [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: 01/27/2023] [Accepted: 11/26/2023] [Indexed: 12/18/2023] Open
Abstract
Gastric cancer (GC) is a heterogeneous disease, threatening millions of lives worldwide, yet the functional roles of long non-coding RNAs (lncRNAs) in different GC subtypes remain poorly characterized. Microsatellite stable (MSS)/epithelial-mesenchymal transition (EMT) GC is the most aggressive subtype associated with a poor prognosis. Here, we apply integrated network analysis to uncover lncRNA heterogeneity between GC subtypes, and identify MIR200CHG as a master regulator mediating EMT specifically in MSS/EMT GC. The expression of MIR200CHG is silenced in MSS/EMT GC by promoter hypermethylation, associated with poor prognosis. MIR200CHG reverses the mesenchymal identity of GC cells in vitro and inhibits metastasis in vivo. Mechanistically, MIR200CHG not only facilitates the biogenesis of its intronic miRNAs miR-200c and miR-141, but also protects miR-200c from target-directed miRNA degradation (TDMD) through direct binding to miR-200c. Our studies reveal a landscape of a subtype-specific lncRNA regulatory network, providing clinically relevant biological insights towards MSS/EMT GC.
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Grants
- 2020N368 Shenzhen Science and Technology Innovation Commission
- C4024-22GF Research Grants Council, University Grants Committee (RGC, UGC)
- 14104223 Research Grants Council, University Grants Committee (RGC, UGC)
- 11103619 Research Grants Council, University Grants Committee (RGC, UGC)
- 14111522 Research Grants Council, University Grants Committee (RGC, UGC)
- R4017-18 Research Grants Council, University Grants Committee (RGC, UGC)
- 82173289 National Natural Science Foundation of China (National Science Foundation of China)
- 81872401 National Natural Science Foundation of China (National Science Foundation of China)
- Guangdong Basic and Applied Basic Research Foundation (Project No.2019B030302012), a startup grant (Project No. 4937084), direct grant (2021.077), Faculty Postdoctoral Fellowship Scheme 2021/22 (Project No. FPFS/2122/32), Shenzhen Bay Scholars Program.
- Guangdong Basic and Applied Basic Research Foundation (2021A1515010425)
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Affiliation(s)
- Yixiao Zhu
- State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, China
- Department of Surgery, The Chinese University of Hong Kong, Hong Kong SAR, China
- National Clinical Research Centre for Geriatric Disorders, Department of Geriatrics, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Chengmei Huang
- State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, China
| | - Chao Zhang
- State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, China
| | - Yi Zhou
- State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, China
| | - Enen Zhao
- State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, China
| | - Yaxin Zhang
- State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, China
| | - Xingyan Pan
- State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, China
| | - Huilin Huang
- State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, China.
| | - Wenting Liao
- State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, China.
| | - Xin Wang
- Department of Surgery, The Chinese University of Hong Kong, Hong Kong SAR, China.
- Li Ka Shing Institute of Health Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR, China.
- Shenzhen Research Institute, The Chinese University of Hong Kong, Shenzhen, Guangdong, China.
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