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Han N, Cheng S, Jin Y, Li G, Wang H, Jin L. Low-intensity pulsed ultrasound combined with ST36 modulate gastric smooth muscle contractile marker expression via RhoA/Rock and MALAT1/miR-449a/DLL1 signaling in diabetic rats. Neurogastroenterol Motil 2024; 36:e14843. [PMID: 38873849 DOI: 10.1111/nmo.14843] [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: 11/09/2023] [Revised: 04/11/2024] [Accepted: 05/15/2024] [Indexed: 06/15/2024]
Abstract
BACKGROUND Low-intensity pulsed ultrasound (LIPUS) combined with acupoint can promote gastric motility of diabetic rats. The switch of gastric smooth muscle cell (GSMCs) phenotype was related to the diabetes-induced gastric dysfunction, but the mechanism is not clearly elucidated. This study was aimed at exploring the underlying mechanism of LIPUS stimulation application in diabetic gastroparesis rats. METHODS In this study, Sprague-Dawley male rats were divided into three groups: control group (CON), diabetic gastroparesis group (DGP), and LIPUS-treated group (LIPUS). LIPUS irradiation was performed bilaterally at ST36 for 20 min per day for 4 weeks. The gastric emptying rate was measured by ultrasound examination. Contraction ability of GSMCs was assessed by muscle strip experiment. The expression of related proteins or mRNAs including α-SMA, SM22α, MHC, RhoA, Rock2, p-MYPT1, MYPT1, p-MLC, MLC, MALAT1, miR-449a, and DLL1 was detected by different methods such as western blotting, RT-qPCR, immunohistochemistry, and immunofluorescence staining, as appropriate. KEY RESULTS (a) LIPUS stimulation at ST36 could improve the gastric motility dysfunction of diabetic rats. (b) LIPUS increased RhoA, Rock2, p-MYPT1, and p-MLC expression level. (c) MALAT1 and DLL1 contents were decreased, but the level of miR-449a was increased in the LIPUS group. CONCLUSIONS & INFERENCES LIPUS may affect the contractile marker expression of gastric smooth muscle through the RhoA/Rock and MALAT1/miR-449a/DLL1 pathway to ameliorate DGP.
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Affiliation(s)
- Nie Han
- Department of Ultrasound, Guanghua Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
- School of Exercise and Health, Shanghai University of Sport, Shanghai, China
| | - Shaodan Cheng
- Department of Rehabilitation, Guanghua Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Ye Jin
- Department of Traditional Chinese Medicine, Industrial Zone Community Health Service Center of Jiading District, Shanghai, China
| | - Guanheng Li
- Department of Ultrasound, Guanghua Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Huan Wang
- Shanghai Acoustics Laboratory, Chinese Academy of Science, Shanghai, China
| | - Lin Jin
- Department of Ultrasound, Guanghua Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
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Barati T, Mirzaei Z, Ebrahimi A, Shekari Khaniani M, Mansoori Derakhshan S. miR-449a: A Promising Biomarker and Therapeutic Target in Cancer and Other Diseases. Cell Biochem Biophys 2024:10.1007/s12013-024-01322-9. [PMID: 38809350 DOI: 10.1007/s12013-024-01322-9] [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] [Accepted: 05/17/2024] [Indexed: 05/30/2024]
Abstract
In the regulation of gene expression, epigenetic factors like non-coding RNAs (ncRNAs) play an equal role in genetics. The role of microRNAs (miRNAs), which are members of the ncRNA family, in post-transcriptional gene regulation is well-documented and has important implications for both normal and abnormal biological processes, such as angiogenesis, proliferation, survival, and apoptosis. The purpose of this study was to synthesize previous research on miR-449a by analyzing published results from various databases, as there have been a number of investigations on miR-449's potential involvement in the development of human disorders. Based on our findings, miR-449 is strongly dysregulated in a wide range of diseases, from various cancers to cardiovascular diseases, cognitive impairments, and respiratory diseases, and it may play a pivotal role in the development of these problems. In addition, miR-449a functions as a crucial regulator of the expression of several well-known genes, including E2F-3, BCL2, NOTCH1, and SOX4. This, in turn, modulates various pathways and processes related to cancer, including Notch, PI3K, and TGF-β, and contributes to the improvement of cancer drug sensitivity. Curiously, abnormalities in the expression of this miRNA may serve as diagnostic or prognostic indicators for distinguishing between healthy people and patients or to evaluate the survival rates for specific disorders. This article provides a synopsis of the current understanding of miR-449a's role in human disease development through its regulation of gene expression and the biological processes related to these genes and their linked processes. In addition, we have covered the topic of miR-449a's potential as a clinical feature (diagnosis and prognosis) indicator for a range of disorders, both neoplastic and non-neoplastic. In general, our goal was to gain a thorough comprehension of the numerous functions of miR-449a in different disorders.
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Affiliation(s)
- Tahereh Barati
- Department of Medical Genetics, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Zohreh Mirzaei
- Department of Medical Genetics, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Amir Ebrahimi
- Department of Medical Genetics, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mahmoud Shekari Khaniani
- Department of Medical Genetics, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran.
| | - Sima Mansoori Derakhshan
- Department of Medical Genetics, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran.
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Zheng X, Xue Q, Wang Y, Lu L, Pan Y, Xu J, Zhang J. A. officinarum Hance - P. cablin (Blanco) Benth drug pair improves oxidative stress, intracellular Ca 2+ concentrations and apoptosis by inhibiting the AGE/RAGE axis to ameliorate diabetic gastroparesis: In vitro and in vivo studies. JOURNAL OF ETHNOPHARMACOLOGY 2024; 324:117832. [PMID: 38280660 DOI: 10.1016/j.jep.2024.117832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2023] [Accepted: 01/24/2024] [Indexed: 01/29/2024]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Alpinia officinarum Hance is a perennial natural medicine herbivorous plant, has been used in the management of treat stomach pain and diabetes, it is abundantly cultivated in Qiongzhong, Baisha and other places. P. cablin (Blanco) Benth, one of the most important traditional Chinese plants, which plays functions in antioxidant and gastrointestinal regulation, has been extensively planted in Hainan, Guangdong and other regions. AIM OF THE STUDY In this study, we investigated the role and underlying molecular mechanism of AP on diabetic gastroparesis (DGP) in vitro and in vivo. MATERIALS AND METHODS In this study, using ultra-high performance liquid chromatography-mass spectrometry/mass spectrometry (UPLC-MS/MS) to identify active compounds in A. officinarum Hance-P. cablin (Blanco) Benth drug pair (AP). Molecular docking were utilized to explore the potential mechanism of AP treatment of DGP. In in vitro assays, gastric smooth muscle cells (GSMCs) were treated with 35 mM glucose to promote apoptosis and construct the DGP model, which was treated with different concentrations of AP. Furthermore, transfection technology was used to overexpress RAGE in GSMCs and elucidate the underlying mechanisms of alleviation of DGP by AP. RESULTS Using UPLC-MS/MS analysis, nine components of AP were identified. We found that AP effectively blocked the increase in apoptosis, oxidative stress, and intracellular Ca2+ concentrations. For in vivo experiments, mice were fed with a high-fat irregular diet to construct DGP model, and AP was co-administered via oral gavage daily to prevent the development of DGP. Compared with DGP mice, AP significantly decreased fasting blood glucose levels and increased gastric emptying levels. Consistent with in vitro experiments, AP also considerably decreased the increase in oxidative stress in DGP mice. Mechanistically, AP alleviates apoptosis and DGP by decreasing oxidative stress and intracellular Ca2+ concentrations via the inhibition of the AGE/RAGE axis. CONCLUSIONS Collectively, this study has established that AP can improve DGP, and the mechanism may be related to the inhibition the AGE/RAGE axis to mitigate apoptosis and DGP. To summarize, this study provides a novel supplementary strategy for DGP treatment.
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Affiliation(s)
- Xiuwen Zheng
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, Hainan Provincial Key Laboratory of R & D on Tropical Herbs, Haikou Key Laboratory of Li Nationality Medicine, School of Pharmacy, Hepatobiliary and Liver Transplantation Department of Hainan Digestive Disease Center of The Second Affiliated Hospital of Hainan Medical University, Engineering Research Center of Tropical Medicine of Ministry of Education, The First Affiliated Hospital, Hainan Medical University, Haikou, China.
| | - Qianrong Xue
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, Hainan Provincial Key Laboratory of R & D on Tropical Herbs, Haikou Key Laboratory of Li Nationality Medicine, School of Pharmacy, Hepatobiliary and Liver Transplantation Department of Hainan Digestive Disease Center of The Second Affiliated Hospital of Hainan Medical University, Engineering Research Center of Tropical Medicine of Ministry of Education, The First Affiliated Hospital, Hainan Medical University, Haikou, China.
| | - Yinghuan Wang
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, Hainan Provincial Key Laboratory of R & D on Tropical Herbs, Haikou Key Laboratory of Li Nationality Medicine, School of Pharmacy, Hepatobiliary and Liver Transplantation Department of Hainan Digestive Disease Center of The Second Affiliated Hospital of Hainan Medical University, Engineering Research Center of Tropical Medicine of Ministry of Education, The First Affiliated Hospital, Hainan Medical University, Haikou, China.
| | - Lu Lu
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, Hainan Provincial Key Laboratory of R & D on Tropical Herbs, Haikou Key Laboratory of Li Nationality Medicine, School of Pharmacy, Hepatobiliary and Liver Transplantation Department of Hainan Digestive Disease Center of The Second Affiliated Hospital of Hainan Medical University, Engineering Research Center of Tropical Medicine of Ministry of Education, The First Affiliated Hospital, Hainan Medical University, Haikou, China.
| | - Yipeng Pan
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, Hainan Provincial Key Laboratory of R & D on Tropical Herbs, Haikou Key Laboratory of Li Nationality Medicine, School of Pharmacy, Hepatobiliary and Liver Transplantation Department of Hainan Digestive Disease Center of The Second Affiliated Hospital of Hainan Medical University, Engineering Research Center of Tropical Medicine of Ministry of Education, The First Affiliated Hospital, Hainan Medical University, Haikou, China.
| | - Jian Xu
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, Hainan Provincial Key Laboratory of R & D on Tropical Herbs, Haikou Key Laboratory of Li Nationality Medicine, School of Pharmacy, Hepatobiliary and Liver Transplantation Department of Hainan Digestive Disease Center of The Second Affiliated Hospital of Hainan Medical University, Engineering Research Center of Tropical Medicine of Ministry of Education, The First Affiliated Hospital, Hainan Medical University, Haikou, China.
| | - Junqing Zhang
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, Hainan Provincial Key Laboratory of R & D on Tropical Herbs, Haikou Key Laboratory of Li Nationality Medicine, School of Pharmacy, Hepatobiliary and Liver Transplantation Department of Hainan Digestive Disease Center of The Second Affiliated Hospital of Hainan Medical University, Engineering Research Center of Tropical Medicine of Ministry of Education, The First Affiliated Hospital, Hainan Medical University, Haikou, China.
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Ashjari D, Karamali N, Rajabinejad M, Hassani SS, Afshar Hezarkhani L, Afshari D, Gorgin Karaji A, Salari F, Rezaiemanesh A. The axis of long non-coding RNA MALAT1/miR-1-3p/CXCR4 is dysregulated in patients with diabetic neuropathy. Heliyon 2022; 8:e09178. [PMID: 35368523 PMCID: PMC8969120 DOI: 10.1016/j.heliyon.2022.e09178] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2021] [Revised: 12/28/2021] [Accepted: 03/18/2022] [Indexed: 01/02/2023] Open
Abstract
Background Diabetic neuropathy (DN) is a prevalent complication of diabetes mellitus characterized by pain and inflammation. Long non-coding RNAs (lncRNAs) have been associated with DN. This study aimed to investigate transcript levels of Metastasis-associated lung adenocarcinoma transcript 1 (MALAT1), microRNA (miR)-1-3p, and C-X-C motif chemokine receptor 4 (CXCR4) in the DN patients and type 2 diabetes mellitus (T2DM) cases without neuropathy. Methods Here, 20 cases with DN and 20 T2DM subjects without neuropathy (as the control group) were included. Total RNA was extracted from peripheral blood mononuclear cells (PBMCs) of all participants. The expression levels of targets were evaluated by Real-time-PCR. Results Results showed that MALAT1 (Fold change = 2.47, P = 0.03) and CXCR4 (Fold change = 1.65, P = 0.023) were significantly upregulated, while miR-1-3p was downregulated (Fold change = 0.9, P = 0.028) in whole blood samples from DN patients compared to the control group. A significant correlation was found between transcript levels of MALAT1 and CXCR4 (rho = 0.84; P < 0.0001). Conclusions This study suggests a possible involvement of the MALAT1/miR-1-3p/CXCR4 axis in the pathogenesis of DN.
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Affiliation(s)
- Donya Ashjari
- Student Research Committee, School of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran.,Department of Immunology, School of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Negin Karamali
- Student Research Committee, School of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran.,Department of Immunology, School of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Misagh Rajabinejad
- Student Research Committee, School of Medicine, Mazandaran University of Medical Sciences, Sari, Iran.,Department of Immunology, School of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
| | - Seyedeh Sara Hassani
- Student Research Committee, School of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran.,Department of Immunology, School of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Leila Afshar Hezarkhani
- Department of Neurology, School of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Daryoush Afshari
- Department of Neurology, School of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Ali Gorgin Karaji
- Department of Immunology, School of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Farhad Salari
- Department of Immunology, School of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Alireza Rezaiemanesh
- Department of Immunology, School of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran
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Wang Y, Wang Y, Zhu B, Zhu Y, Jiang Y, Xiong W, Lin L, Gong Y. MALAT1: A Pivotal lncRNA in the Phenotypic Switch of Gastric Smooth Muscle Cells via the Targeting of the miR-449a/DLL1 Axis in Diabetic Gastroparesis. Front Pharmacol 2021; 12:719581. [PMID: 34385927 PMCID: PMC8353150 DOI: 10.3389/fphar.2021.719581] [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: 06/02/2021] [Accepted: 07/13/2021] [Indexed: 11/16/2022] Open
Abstract
Diabetic gastroparesis (DGP) is a common complication of diabetes mellitus (DM). Our previous study suggested that the expression of the long non-coding RNA (lncRNA) metastasis-associated lung adenocarcinoma transcript 1 (MALAT1) is closely related to DGP. However, the role of MALAT1 in DGP pathogenesis remains unclear. Here, we aim to characterize the role of MALAT1 in DGP. First, we analyzed the lncRNA expression profiles through lncRNA sequencing. Next, we detected MALAT1 expression in the stomach tissues of DGP model mice and diabetic patients. Then, we investigated the role and mechanisms of MALAT1 in the proliferation, migration, phenotypic switch, and carbachol-induced intracellular Ca2+ changes in human gastric smooth muscle cells (HGSMCs) under high glucose (HG) conditions, using short hairpin RNA technology, RNA immunoprecipitation, and dual-luciferase reporter assays. We show that MALAT1 expression was upregulated in the gastric tissues of DGP model mice, the adjacent healthy tissues collected from diabetic gastric cancer patients with DGP symptoms, and in HGSMCs cultured under HG conditions. Functionally, MALAT1 knockdown in vitro impacted the viability, proliferation, migration and promoted the phenotypic switch of HGSMCs under HG conditions. Additionally, we show that MALAT1 sponged miR-449a, regulating Delta-like ligand 1 (DLL1) expression in HGSMCs; any disturbance of the MALAT1/miR-449a/DLL1 pathway affects the proliferation, migration, phenotypic switch, and carbachol-induced Ca2+ transient signals in HGSMCs under HG conditions. Collectively, our data highlight a novel regulatory signaling pathway, the MALAT1/miR-449a/DLL1 axis, in the context of DGP.
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Affiliation(s)
- Yanjuan Wang
- Department of Gastroenterology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Yan Wang
- Department of Gastroenterology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Boqian Zhu
- Department of Cardiology, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
| | - Ying Zhu
- Department of Gastroenterology, Northern Jiangsu People's Hospital, Yangzhou, China
| | - Ya Jiang
- Department of Gastroenterology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Wenjie Xiong
- Department of Gastroenterology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Lin Lin
- Department of Gastroenterology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Yaoyao Gong
- Department of Gastroenterology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
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Formichi C, Nigi L, Grieco GE, Maccora C, Fignani D, Brusco N, Licata G, Sebastiani G, Dotta F. Non-Coding RNAs: Novel Players in Insulin Resistance and Related Diseases. Int J Mol Sci 2021; 22:7716. [PMID: 34299336 PMCID: PMC8306942 DOI: 10.3390/ijms22147716] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Revised: 07/13/2021] [Accepted: 07/15/2021] [Indexed: 12/12/2022] Open
Abstract
The rising prevalence of metabolic diseases related to insulin resistance (IR) have stressed the urgent need of accurate and applicable tools for early diagnosis and treatment. In the last decade, non-coding RNAs (ncRNAs) have gained growing interest because of their potential role in IR modulation. NcRNAs are variable-length transcripts which are not translated into proteins but are involved in gene expression regulation. Thanks to their stability and easy detection in biological fluids, ncRNAs have been investigated as promising diagnostic and therapeutic markers in metabolic diseases, such as type 2 diabetes mellitus (T2D), obesity and non-alcoholic fatty liver disease (NAFLD). Here we review the emerging role of ncRNAs in the development of IR and related diseases such as obesity, T2D and NAFLD, and summarize current evidence concerning their potential clinical application.
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Affiliation(s)
- Caterina Formichi
- Diabetes Unit, Department of Medicine, Surgery and Neurosciences, University of Siena, 53100 Siena, Italy; (C.F.); (L.N.); (G.E.G.); (D.F.); (N.B.); (G.L.); (G.S.)
- Fondazione Umberto Di Mario, c/o Toscana Life Sciences, 53100 Siena, Italy
| | - Laura Nigi
- Diabetes Unit, Department of Medicine, Surgery and Neurosciences, University of Siena, 53100 Siena, Italy; (C.F.); (L.N.); (G.E.G.); (D.F.); (N.B.); (G.L.); (G.S.)
- Fondazione Umberto Di Mario, c/o Toscana Life Sciences, 53100 Siena, Italy
| | - Giuseppina Emanuela Grieco
- Diabetes Unit, Department of Medicine, Surgery and Neurosciences, University of Siena, 53100 Siena, Italy; (C.F.); (L.N.); (G.E.G.); (D.F.); (N.B.); (G.L.); (G.S.)
- Fondazione Umberto Di Mario, c/o Toscana Life Sciences, 53100 Siena, Italy
| | - Carla Maccora
- Section of Medical Pathophysiology, Food Science and Endocrinology, Department of Experimental Medicine, Sapienza University, 00185 Rome, Italy;
| | - Daniela Fignani
- Diabetes Unit, Department of Medicine, Surgery and Neurosciences, University of Siena, 53100 Siena, Italy; (C.F.); (L.N.); (G.E.G.); (D.F.); (N.B.); (G.L.); (G.S.)
- Fondazione Umberto Di Mario, c/o Toscana Life Sciences, 53100 Siena, Italy
| | - Noemi Brusco
- Diabetes Unit, Department of Medicine, Surgery and Neurosciences, University of Siena, 53100 Siena, Italy; (C.F.); (L.N.); (G.E.G.); (D.F.); (N.B.); (G.L.); (G.S.)
- Fondazione Umberto Di Mario, c/o Toscana Life Sciences, 53100 Siena, Italy
| | - Giada Licata
- Diabetes Unit, Department of Medicine, Surgery and Neurosciences, University of Siena, 53100 Siena, Italy; (C.F.); (L.N.); (G.E.G.); (D.F.); (N.B.); (G.L.); (G.S.)
- Fondazione Umberto Di Mario, c/o Toscana Life Sciences, 53100 Siena, Italy
| | - Guido Sebastiani
- Diabetes Unit, Department of Medicine, Surgery and Neurosciences, University of Siena, 53100 Siena, Italy; (C.F.); (L.N.); (G.E.G.); (D.F.); (N.B.); (G.L.); (G.S.)
- Fondazione Umberto Di Mario, c/o Toscana Life Sciences, 53100 Siena, Italy
| | - Francesco Dotta
- Diabetes Unit, Department of Medicine, Surgery and Neurosciences, University of Siena, 53100 Siena, Italy; (C.F.); (L.N.); (G.E.G.); (D.F.); (N.B.); (G.L.); (G.S.)
- Fondazione Umberto Di Mario, c/o Toscana Life Sciences, 53100 Siena, Italy
- Tuscany Centre for Precision Medicine (CReMeP), 53100 Siena, Italy
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Huang H, Zhang G, Ge Z. lncRNA MALAT1 Promotes Renal Fibrosis in Diabetic Nephropathy by Targeting the miR-2355-3p/IL6ST Axis. Front Pharmacol 2021; 12:647650. [PMID: 33995063 PMCID: PMC8117091 DOI: 10.3389/fphar.2021.647650] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Accepted: 03/29/2021] [Indexed: 12/13/2022] Open
Abstract
Long noncoding RNA (lncRNAs) metastasis-associated lung adenocarcinoma transcript 1 (MALAT1) has been reported in diabetic nephropathy (DN) about its effect on podocyte function and cell heat shock induced by hyperglycemia. However, the biological mechanism of MALAT1 regulating DN fibrosis needs further study. In this study, SD rats were administrated with streptozotocin (STZ) to establish a diabetes model. In vitro, human renal tubular epithelial cells (HK-2 and 293T) were treated with high glucose (HG). Here, we found that MALAT1 was upregulated in renal tissues of diabetic rats and HG-treated cells, and HG treatment promoted cell proliferation and invasion. MALAT1 overexpression aggravated protein levels of collagen I (col I), collagen IV (col IV), fibronectin (FN), and laminin (LN) in HK-2 cells, while MALAT1 knockdown exerted the opposite effect. Moreover, the luciferase reporter gene and pull-down assays demonstrated that MALAT1 interacted with miR-2355-3p. The miR-2355-3p level was downregulated in diabetic rats and HG-treated cells, and MALAT1 overexpression inhibited the miR-2355-3p level. Bioinformatics prediction and luciferase reporter gene assay revealed that interleukin 6 signal transducer (IL6ST) was a target of miR-2355-3p. In addition, miR-2355-3p overexpression attenuated fibrosis-related gene levels in HG-treated cells by inhibiting IL6ST expression and inactivating the recombinant signal transducer and activator of the transcription 3 (STAT3) signaling pathway. Knockdown of miR-2355-3p reversed the inhibitory effect of MALAT1 knockdown on IL6ST, col I, col IV, FN, and LN protein levels in HG-induced cells. Overexpression of MALAT1 aggravated cell damage in HG-induced cells via the miR-2355-3p/IL6ST/STAT3 signaling pathway. Finally, enhanced renal fibrosis and kidney tissue damage were observed in diabetic rats. In conclusion, MALAT1 overexpression may enhance renal fibrosis in diabetic rats and cell damage in HG-induced HK-2 cells via the miR-2355-3p/IL6ST axis, which provides a new perspective of DN treatment.
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Affiliation(s)
- Haozi Huang
- Department of Endocrinology, Huaihe Hospital of Henan University, Kaifeng, China
| | - Guowei Zhang
- Intensive Care Unit, Adult Cardiovascular Surgery, Fuwai Central China Cardiovascular Hospital, Zhengzhou, China
| | - Zhenying Ge
- Basic Medical College, Henan University, Kaifeng, China
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Wang H, Wang F, Ouyang W, Jiang X, Li W. MALAT1 knockdown inhibits hypopharyngeal squamous cell carcinoma malignancy by targeting microRNA-194. Oncol Lett 2020; 20:173-182. [PMID: 32565945 PMCID: PMC7285813 DOI: 10.3892/ol.2020.11551] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2019] [Accepted: 03/13/2020] [Indexed: 12/30/2022] Open
Abstract
Metastasis-associated lung adenocarcinoma transcript 1 (MALAT1) is involved in the oncogenesis and progression of various types of cancer. However, the function of MALAT1 in hypopharyngeal squamous cell carcinoma (HSCC) is not completely understood. In the present study, MALAT1 expression levels were determined using reverse transcription-quantitative PCR, and Cell Counting Kit-8, Transwell and flow cytometry assays were performed to investigate the biological functions of HSCC cells. The results indicated that MALAT1 was upregulated in HSCC. MALAT1 knockdown suppressed HSCC cell proliferation, migration and invasion, and promoted apoptosis compared with the control group. Additionally, microRNA (miR)-194 was identified as a target of MALAT1 and was expressed at low levels in HSCC tissues compared with adjacent non-tumor tissues. A miR-194 agomir inhibited malignant cell behaviors, including cell proliferation, migration and invasion, whereas miR-194 antagomir promoted malignant behaviors compared with the corresponding control groups. In addition, the results suggested that MALAT1 knockdown inhibited the malignant behaviors of HSCC cells by binding miR-194. miR-194 inhibition partially reversed the MALAT1 knockdown-induced inhibitory effects on HSCC cells. Furthermore, MALAT1 knockdown combined with miR194 mimics resulted in the lowest tumor volume among all tested groups in vivo. In conclusion, the results of the present study suggested that MALAT1 knockdown suppressed the malignant behavior of HSCC by targeting miR-194; therefore, MALAT1 may serve as a novel therapeutic target for HSCC.
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Affiliation(s)
- Hongming Wang
- Department of Otolaryngology, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning 110001, P.R. China
| | - Fei Wang
- Department of Otolaryngology, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning 110001, P.R. China
| | - Wenyu Ouyang
- Department of Otolaryngology, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning 110001, P.R. China
| | - Xuejun Jiang
- Department of Otolaryngology, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning 110001, P.R. China
| | - Wei Li
- Department of Otolaryngology, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning 110001, P.R. China
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Jiang Z, Zeng Q, Li D, Ding L, Lu W, Bian M, Wu J. Long non‑coding RNA MALAT1 promotes high glucose‑induced rat cartilage endplate cell apoptosis via the p38/MAPK signalling pathway. Mol Med Rep 2020; 21:2220-2226. [PMID: 32323759 PMCID: PMC7115198 DOI: 10.3892/mmr.2020.11009] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Accepted: 01/27/2020] [Indexed: 12/12/2022] Open
Abstract
Diabetes mellitus (DM) contributes to intervertebral disc degeneration (IDD). The long non‑coding RNA MALAT1 has been revealed to play an important role in diabetes‑associated complications. However, the specific role of MALAT1 in diabetes‑associated IDD has not been determined. The aim of the present study was to evaluate the roles of MALAT1 in the apoptosis of cartilage endplate (CEP) cells induced by high glucose and to explore the mechanisms underlying this effect. Rat CEP cells were cultured in high‑glucose medium (25 mM glucose) for 24 or 72 h. Cells cultured in medium containing 5 mM glucose were used as a control. Flow cytometry was used to detect the degree of apoptosis. Reverse transcription‑quantitative PCR was used to measure the expression of MALAT1 mRNA. In addition, CEP cells were treated with different conditions (high glucose, high glucose + MALAT1 negative control, high glucose + MALAT1 RNAi, normal control) for 72 h. Flow cytometry was subsequently used to detect apoptosis and western blotting was used to measure the expression levels of total and phosphorylated p38. The results revealed that high glucose concentration promoted apoptosis and enhanced expression of MALAT1 in CEP cells. Furthermore, MALAT1 knockout decreased the expression levels of total and phosphorylated p38 and reduced the apoptosis of rat CEP cells. The results obtained in the present study indicated that MALAT1 may serve as an important therapeutic target for curing or delaying IDD in patients with diabetes.
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Affiliation(s)
- Zengxin Jiang
- Department of Orthopedic Surgery, Fudan University Jinshan Hospital, Shanghai 201508, P.R. China
| | - Qingmin Zeng
- Department of Orthopedic Surgery, Fudan University Jinshan Hospital, Shanghai 201508, P.R. China
| | - Defang Li
- Department of Orthopedic Surgery, Fudan University Jinshan Hospital, Shanghai 201508, P.R. China
| | - Lei Ding
- Department of Orthopedic Surgery, Fudan University Jinshan Hospital, Shanghai 201508, P.R. China
| | - Wei Lu
- Department of Orthopedic Surgery, Shanghai TCM‑Integrated Hospital, Shanghai University of TCM, Shanghai 200082, P.R. China
| | - Mengxuan Bian
- Department of Orthopedic Surgery, Fudan University Jinshan Hospital, Shanghai 201508, P.R. China
| | - Jingping Wu
- Department of Orthopedic Surgery, Fudan University Jinshan Hospital, Shanghai 201508, P.R. China
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10
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Liu J, Xu L, Zhan X. LncRNA MALAT1 regulates diabetic cardiac fibroblasts through the Hippo-YAP signaling pathway. Biochem Cell Biol 2020; 98:537-547. [PMID: 32069074 DOI: 10.1139/bcb-2019-0434] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Diabetic cardiomyopathy (DCM) is a major diabetes-related microvascular disease. LncRNA MALAT1 is widely expressed in cardiomyocytes responding to hypoxia and high levels of glucose (high glucose). In this study, cardiac fibroblasts (CFs) were transfected with si-MALAT1 and exposed to high glucose. CFs in the high glucose groups were treated with 30 mmol/L glucose, and the control CFs were treated with 5.5 mmol/L glucose. The expression of MALAT1 in the nucleus and cytoplasm of CFs was detected. The biological behavior of CFs, as well as collagen production, activity of the Hippo-YAP pathway, and nuclear localization of YAP were measured. Mouse models of DCM were established to observe the pathological changes to myocardium and determine the levels of collagen I, Bax, and Bcl-2. The interaction between MALAT1 and YAP was analyzed, and CREB expression in the high-glucose treated CFs was detected. MALAT1 was upregulated in high-glucose CFs and located in the nucleus. High-glucose increased collagen production, inflammation, cell proliferation, cell invasiveness, and phosphorylation of MST1 and LATS1, and also promoted nuclear translocation of YAP. These trends in high-glucose treated CFs and the DCM mice were reversed by transfection with si-MALAT1. MALAT1 positively regulated the nuclear translocation of YAP by binding to CREB. CREB levels were increased in the high-glucose CFs, but decreased after silencing MALAT1. These results indicate that si-MALAT1 reduces inflammation and collagen accumulation in high-glucose CFs and DCM mice via the Hippo-YAP pathway and CREB.
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Affiliation(s)
- Jiangwen Liu
- Endocrine and Metabolic Diseases, Harbin Medical University, Harbin 150001, Heilongjiang, P.R. China
| | - Liang Xu
- Department of Cardiology, The First Hospital of Harbin, Harbin 150001, Heilongjiang, P.R. China
| | - Xiaorong Zhan
- Department of Endocrinology, The First Affiliated Hospital of Harbin Medical University, Harbin 150001, Heilongjiang, P.R. China
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11
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Yu L, Fu J, Yu N, Wu Y, Han N. Long noncoding RNA MALAT1 participates in the pathological angiogenesis of diabetic retinopathy in an oxygen-induced retinopathy mouse model by sponging miR-203a-3p. Can J Physiol Pharmacol 2019; 98:219-227. [PMID: 31689123 DOI: 10.1139/cjpp-2019-0489] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Diabetic retinopathy (DR) is a devastating complication of diabetes. The aim of the present study is to investigate the exact role and mechanism of long noncoding RNA MALAT1 (MALAT1) in the progress of DR. An oxygen-induced retinopathy (OIR) mouse model and high glucose (HG) stimulated human retinal microvascular endothelial cells (HRMECs) were employed to mimic the pathological statues of DR. Quantitative real-time PCR (qRT-PCR) and Western blot results showed that MALAT1, VEGFA, and HIF-1α levels were increased in DR retinal tissues and HG-stimulated HRMECs, whereas the expression of miR-203a-3p was decreased. Knockdown of MALAT1 or upregulation of miR-203a-3p both suppressed HG-induced proliferation, migration, and tube formation of HRMECs. A dual-luciferase reporter assay showed that miR-203a-3p could bind to the predicted seed regions of MALAT1 as evidenced by the reduced luciferase activity. Furthermore, enforced downregulation of miR-203a-3p abolished the suppressive effect of MALAT1 silencing on HRMEC cell migration and tube formation. In conclusion, these data demonstrated that MALAT1 may affect angiogenesis by sponging miR-203a-3p in DR, suggesting that MALAT1 may act as a novel therapeutic target for the treatment of DR.
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Affiliation(s)
- Li Yu
- Department of Ophthalmology, The Second Hospital of Jilin University, Changchun 130041, People's Republic of China
| | - Jinling Fu
- Department of Ophthalmology, The Second Hospital of Jilin University, Changchun 130041, People's Republic of China
| | - Na Yu
- Department of Blood Transfusion, The Second Hospital of Jilin University, Changchun 130041, People's Republic of China
| | - Yazhen Wu
- Department of Ophthalmology, The Second Hospital of Jilin University, Changchun 130041, People's Republic of China
| | - Ning Han
- Department of Ophthalmology, The Second Hospital of Jilin University, Changchun 130041, People's Republic of China
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Mongelli A, Martelli F, Farsetti A, Gaetano C. The Dark That Matters: Long Non-coding RNAs as Master Regulators of Cellular Metabolism in Non-communicable Diseases. Front Physiol 2019; 10:369. [PMID: 31191327 PMCID: PMC6539782 DOI: 10.3389/fphys.2019.00369] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2019] [Accepted: 03/18/2019] [Indexed: 12/17/2022] Open
Abstract
Non-coding RNAs are pivotal for many cellular functions, such as splicing, gene regulation, chromosome structure, and hormone-like activity. Here, we will report about the biology and the general molecular mechanisms associated with long non-coding RNAs (lncRNAs), a class of >200 nucleotides-long ribonucleic acid sequences, and their role in chronic non-transmissible diseases. In particular, we will summarize knowledge about some of the best-characterized lncRNAs, such as H19 and MALAT1, and how they regulate carbohydrate and lipid metabolism as well as protein synthesis and degradation. Evidence is discussed about how lncRNAs expression might affect cellular and organismal metabolism and whether their modulation could provide ground for the development of innovative treatments.
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Affiliation(s)
| | - Fabio Martelli
- Molecular Cardiology Laboratory, IRCCS Policlinico San Donato, Milan, Italy
| | - Antonella Farsetti
- Institute of Cell Biology and Neurobiology, National Research Council, Università Cattolica di Roma, Rome, Italy
| | - Carlo Gaetano
- Laboratory of Epigenetics, ICS Maugeri S.p.A., Pavia, Italy
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Ren S, Zhang Y, Li B, Bu K, Wu L, Lu Y, Lu Y, Qiu Y. Downregulation of lncRNA-SRA participates in the development of cardiovascular disease in type II diabetic patients. Exp Ther Med 2019; 17:3367-3372. [PMID: 30988713 PMCID: PMC6447805 DOI: 10.3892/etm.2019.7362] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Accepted: 01/18/2019] [Indexed: 11/28/2022] Open
Abstract
Long non-coding RNA steroid receptor RNA activator (lncRNA-SRA) has been proven to regulate vascular smooth muscle cell (VSMC) proliferation, indicating its possible involvement in cardiovascular disease. Diabetes is a major cause of cardiovascular disease. The aim of the present study was to investigate the involvement of lncRNA-SRA in type II diabetic cardiovascular disease. The plasma levels of lncRNA-SRA were identified to be significantly lower in patients with type II diabetic cardiovascular disease compared with those in type II diabetic patients without any obvious complications and in healthy controls. A 5-year follow-up study revealed that low vs. high expression levels of lncRNA-SRA were associated with an increased incidence of cardiovascular disease in type II diabetic patients. High-glucose treatment did not significantly affect the expression of lncRNA-SRA in human VSMCs in vitro. However, ectopic overexpression of lncRNA-SRA increased the viability of human VSMCs in a high-glucose environment. It was concluded that downregulation of lncRNA-SRA may participate in the development of cardiovascular disease in type II diabetic patients.
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Affiliation(s)
- Shuang Ren
- Department of General Internal Medicine, Affiliated Tumor Hospital of Guangxi Medical University, Nanning, Guangxi 530021, P.R. China
| | - Yi Zhang
- Department of Internal Medicine-Cardiovascular, Nanning Second People's Hospital, Nanning, Guangxi 530031, P.R. China
| | - Bixun Li
- Department of General Internal Medicine, Affiliated Tumor Hospital of Guangxi Medical University, Nanning, Guangxi 530021, P.R. China
| | - Kunpeng Bu
- Department of General Internal Medicine, Affiliated Tumor Hospital of Guangxi Medical University, Nanning, Guangxi 530021, P.R. China
| | - Lili Wu
- Department of General Internal Medicine, Affiliated Tumor Hospital of Guangxi Medical University, Nanning, Guangxi 530021, P.R. China
| | - Yang Lu
- Department of General Internal Medicine, Affiliated Tumor Hospital of Guangxi Medical University, Nanning, Guangxi 530021, P.R. China
| | - Yanyan Lu
- Department of General Internal Medicine, Affiliated Tumor Hospital of Guangxi Medical University, Nanning, Guangxi 530021, P.R. China
| | - Ye Qiu
- Department of General Internal Medicine, Affiliated Tumor Hospital of Guangxi Medical University, Nanning, Guangxi 530021, P.R. China
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