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Li J, Li J, Ullah A, Shi X, Zhang X, Cui Z, Lyu Q, Kou G. Tangeretin Enhances Muscle Endurance and Aerobic Metabolism in Mice via Targeting AdipoR1 to Increase Oxidative Myofibers. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024. [PMID: 38990695 DOI: 10.1021/acs.jafc.3c09386] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/13/2024]
Abstract
Slow oxidative myofibers play an important role in improving muscle endurance performance and maintaining body energy homeostasis. However, the targets and means to regulate slow oxidative myofibers proportion remain unknown. Here, we show that tangeretin (TG), a natural polymethoxylated flavone, significantly activates slow oxidative myofibers-related gene expression and increases type I myofibers proportion, resulting in improved endurance performance and aerobic metabolism in mice. Proteomics, molecular dynamics, cellular thermal shift assay (CETSA) and drug affinity responsive target stability (DARTS) investigations revealed that TG can directly bind to adiponectin receptor 1 (AdipoR1). Using AdipoR1-knockdown C2C12 cells and muscle-specific AdipoR1-knockout mice, we found that the positive effect of TG on regulating slow oxidative myofiber related markers expression is mediated by AdipoR1 and its downstream AMPK/PGC-1α pathway. Together, our data uncover TG as a natural compound that regulates the identity of slow oxidative myofibers via targeting the AdipoR1 signaling pathway. These findings further unveil the new function of TG in increasing the proportion of slow oxidative myofibers and enhancing skeletal muscle performance.
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Affiliation(s)
- Jinjie Li
- Centre for Nutritional Ecology and Centre for Sport Nutrition and Health, Zhengzhou University, Zhengzhou 450001, China
| | - Jiangtao Li
- Centre for Nutritional Ecology and Centre for Sport Nutrition and Health, Zhengzhou University, Zhengzhou 450001, China
| | - Amin Ullah
- Department of Nutrition and Food Hygiene, School of Public Health, Zhengzhou University, Zhengzhou 450001, China
| | - Xiaoyang Shi
- Centre for Nutritional Ecology and Centre for Sport Nutrition and Health, Zhengzhou University, Zhengzhou 450001, China
| | - Xinyuan Zhang
- Centre for Nutritional Ecology and Centre for Sport Nutrition and Health, Zhengzhou University, Zhengzhou 450001, China
| | - Zhenwei Cui
- Centre for Nutritional Ecology and Centre for Sport Nutrition and Health, Zhengzhou University, Zhengzhou 450001, China
| | - Quanjun Lyu
- Department of Nutrition and Food Hygiene, School of Public Health, Zhengzhou University, Zhengzhou 450001, China
| | - Guangning Kou
- Centre for Nutritional Ecology and Centre for Sport Nutrition and Health, Zhengzhou University, Zhengzhou 450001, China
- Department of Nutrition and Food Hygiene, School of Public Health, Zhengzhou University, Zhengzhou 450001, China
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Abdel-Tawab MS, Mohamed MG, Doudar NA, Rateb EE, Reyad HR, Elazeem NAA. Circulating hsa-miR-221 as a possible diagnostic and prognostic biomarker of diabetic nephropathy. Mol Biol Rep 2023; 50:9793-9803. [PMID: 37831346 PMCID: PMC10676308 DOI: 10.1007/s11033-023-08846-y] [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: 08/04/2023] [Accepted: 09/26/2023] [Indexed: 10/14/2023]
Abstract
BACKGROUND Diabetic nephropathy (DN), which is a chronic outcome of diabetes mellitus (DM), usually progresses to end-stage renal disease (ESRD). The DN pathophysiology, nevertheless, is not well-defined. Several miRNAs were reported to be either risk or protective factors in DN. METHODS, AND RESULTS The present study sought to inspect the potential diagnostic and prognostic value of hsa-miR-221 in DN. The study included 200 participants divided into four groups: Group 1 (50 patients with DN), Group 2 (50 diabetic patients without nephropathy), Group 3 (50 nondiabetic patients with CKD), and Group 4 (50 healthy subjects as a control group). Patients in groups 1 and 3 were further classified based on the presence of macroalbuminuria and microalbuminuria. Hsa-miR-221 expression was measured by RT- qRT-PCR. DN patients had significantly elevated serum hsa-miR-221 levels than the other groups, while diabetic patients without nephropathy exhibited elevated levels compared to both nondiabetic patients with CKD, and the control group. The DN patients with macroalbuminuria revealed significantly higher mean values of hsa-miR-221 relative to the patients with microalbuminuria. Significant positive associations were observed in the DN group between serum hsa-miR-221 and fasting insulin, fasting glucose, HOMA IR, ACR, and BMI. The ROC curve analysis of serum hsa-miR-221 in the initial diagnosis of DN in DM revealed high specificity and sensitivity. CONCLUSIONS It is concluded that hsa-miR-221 has the potential to be a useful biomarker for prognostic and diagnostic purposes in DN.
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Affiliation(s)
- Marwa Sayed Abdel-Tawab
- Medical Biochemistry Department, Faculty of Medicine, Beni-Suef University, Beni-Suef, Egypt.
| | - Mohamed Gamal Mohamed
- Internal Medicine Department, Faculty of Medicine, Beni-Suef University, Beni-Suef, Egypt
| | - Noha A Doudar
- Clinical and Chemical Pathology Department, Faculty of Medicine, Beni-Suef University, Beni-Suef, Egypt
| | - Enas Ezzat Rateb
- Physiology Department, Faculty of Medicine, Beni-Suef University, Beni-Suef, Egypt
| | - Hoda Ramadan Reyad
- Medical Biochemistry Department, Faculty of Medicine, Beni-Suef University, Beni-Suef, Egypt
| | - Naglaa Adli Abd Elazeem
- Medical Biochemistry Department, Faculty of Medicine, Beni-Suef University, Beni-Suef, Egypt
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Sun H, Kemper JK. MicroRNA regulation of AMPK in nonalcoholic fatty liver disease. Exp Mol Med 2023; 55:1974-1981. [PMID: 37653034 PMCID: PMC10545736 DOI: 10.1038/s12276-023-01072-3] [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: 04/19/2023] [Revised: 06/10/2023] [Accepted: 06/13/2023] [Indexed: 09/02/2023] Open
Abstract
Obesity-associated nonalcoholic fatty liver disease (NAFLD) is the most common chronic liver disease and is the leading cause of liver failure and death. The function of AMP-activated protein kinase (AMPK), a master energy sensor, is aberrantly reduced in NAFLD, but the underlying mechanisms are not fully understood. Increasing evidence indicates that aberrantly expressed microRNAs (miRs) are associated with impaired AMPK function in obesity and NAFLD. In this review, we discuss the emerging evidence that miRs have a role in reducing AMPK activity in NAFLD and nonalcoholic steatohepatitis (NASH), a severe form of NAFLD. We also discuss the underlying mechanisms of the aberrant expression of miRs that can negatively impact AMPK, as well as the therapeutic potential of targeting the miR-AMPK pathway for NAFLD/NASH.
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Affiliation(s)
- Hao Sun
- Department of Molecular and Integrative Physiology, School of Molecular and Cellular Biology, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA
| | - Jongsook Kim Kemper
- Department of Molecular and Integrative Physiology, School of Molecular and Cellular Biology, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA.
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Varesi A, Campagnoli LIM, Barbieri A, Rossi L, Ricevuti G, Esposito C, Chirumbolo S, Marchesi N, Pascale A. RNA binding proteins in senescence: A potential common linker for age-related diseases? Ageing Res Rev 2023; 88:101958. [PMID: 37211318 DOI: 10.1016/j.arr.2023.101958] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Revised: 05/09/2023] [Accepted: 05/18/2023] [Indexed: 05/23/2023]
Abstract
Aging represents the major risk factor for the onset and/or progression of various disorders including neurodegenerative diseases, metabolic disorders, and bone-related defects. As the average age of the population is predicted to exponentially increase in the coming years, understanding the molecular mechanisms underlying the development of aging-related diseases and the discovery of new therapeutic approaches remain pivotal. Well-reported hallmarks of aging are cellular senescence, genome instability, autophagy impairment, mitochondria dysfunction, dysbiosis, telomere attrition, metabolic dysregulation, epigenetic alterations, low-grade chronic inflammation, stem cell exhaustion, altered cell-to-cell communication and impaired proteostasis. With few exceptions, however, many of the molecular players implicated within these processes as well as their role in disease development remain largely unknown. RNA binding proteins (RBPs) are known to regulate gene expression by dictating at post-transcriptional level the fate of nascent transcripts. Their activity ranges from directing primary mRNA maturation and trafficking to modulation of transcript stability and/or translation. Accumulating evidence has shown that RBPs are emerging as key regulators of aging and aging-related diseases, with the potential to become new diagnostic and therapeutic tools to prevent or delay aging processes. In this review, we summarize the role of RBPs in promoting cellular senescence and we highlight their dysregulation in the pathogenesis and progression of the main aging-related diseases, with the aim of encouraging further investigations that will help to better disclose this novel and captivating molecular scenario.
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Affiliation(s)
- Angelica Varesi
- Department of Biology and Biotechnology, University of Pavia, Pavia, Italy.
| | | | - Annalisa Barbieri
- Department of Drug Sciences, Section of Pharmacology, University of Pavia, Pavia, Italy
| | - Lorenzo Rossi
- Institute of Molecular Biology and Biophysics, ETH Zurich, Zurich, Switzerland
| | | | - Ciro Esposito
- Department of Internal Medicine and Therapeutics, University of Pavia, Italy; Nephrology and dialysis unit, ICS S. Maugeri SPA SB Hospital, Pavia, Italy; High School in Geriatrics, University of Pavia, Italy
| | | | - Nicoletta Marchesi
- Department of Drug Sciences, Section of Pharmacology, University of Pavia, Pavia, Italy
| | - Alessia Pascale
- Department of Drug Sciences, Section of Pharmacology, University of Pavia, Pavia, Italy.
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Dezonne RS, Pereira CM, de Moraes Martins CJ, de Abreu VG, Francischetti EA. Adiponectin, the adiponectin paradox, and Alzheimer's Disease: Is this association biologically plausible? Metab Brain Dis 2023; 38:109-121. [PMID: 35921057 DOI: 10.1007/s11011-022-01064-8] [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: 04/11/2022] [Accepted: 07/19/2022] [Indexed: 02/03/2023]
Abstract
Dementia, especially Alzheimer's Disease (AD) and vascular dementia, is a major public health problem that continues to expand in both economically emerging and hegemonic countries. In 2017, the World Alzheimer Report estimated that over 50 million people were living with dementia globally. Metabolic dysfunctions of brain structures such as the hippocampus and cerebral cortex have been implicated as risk factors for dementia. Several well-defined metabolic risk factors for AD include visceral obesity, chronic inflammation, peripheral and brain insulin resistance, type 2 diabetes mellitus (T2DM), hypercholesterolemia, and others. In this review, we describe the relationship between the dysmetabolic mechanisms, although still unknown, and dementia, particularly AD. Adiponectin (ADPN), the most abundant circulating adipocytokine, acts as a protagonist in the metabolic dysfunction associated with AD, with unexpected and intriguing dual biological functions. This contradictory role of ADPN has been termed the adiponectin paradox. Some evidence suggests that the adiponectin paradox is important in amyloidogenic evolvability in AD. We present cumulative evidence showing that AD and T2DM share many common features. We also review the mechanistic pathways involving brain insulin resistance. We discuss the importance of the evolvability of amyloidogenic proteins (APs), defined as the capacity of a system for adaptive evolution. Finally, we describe potential therapeutic strategies in AD, based on the adiponectin paradox.
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Affiliation(s)
- Rômulo Sperduto Dezonne
- Neuropathology and Molecular Genetics Laboratory, State Institute of the Brain Paulo Niemeyer, State Health Department, Rio de Janeiro, Brazil
| | | | - Cyro José de Moraes Martins
- Laboratory of Clinical and Experimental Pathophysiology, Rio de Janeiro State University, Rio de Janeiro, Brazil
| | - Virgínia Genelhu de Abreu
- Laboratory of Clinical and Experimental Pathophysiology, Rio de Janeiro State University, Rio de Janeiro, Brazil
| | - Emilio Antonio Francischetti
- Laboratory of Clinical and Experimental Pathophysiology, Rio de Janeiro State University, Rio de Janeiro, Brazil.
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Mone P, Lombardi A, Kansakar U, Varzideh F, Jankauskas SS, Pansini A, Marzocco S, De Gennaro S, Famiglietti M, Macina G, Frullone S, Santulli G. Empagliflozin Improves the MicroRNA Signature of Endothelial Dysfunction in Patients with Heart Failure with Preserved Ejection Fraction and Diabetes. J Pharmacol Exp Ther 2023; 384:116-122. [PMID: 36549862 PMCID: PMC9827502 DOI: 10.1124/jpet.121.001251] [Citation(s) in RCA: 37] [Impact Index Per Article: 37.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Revised: 04/29/2022] [Accepted: 06/06/2022] [Indexed: 01/12/2023] Open
Abstract
Endothelial dysfunction represents a key mechanism underlying heart failure with preserved ejection fraction (HFpEF), diabetes mellitus (DM), and frailty. However, reliable biomarkers to monitor endothelial dysfunction in these patients are lacking. In this study, we evaluated the expression of a panel of circulating microRNAs (miRs) involved in the regulation of endothelial function in a population of frail older adults with HFpEF and DM treated for 3 months with empagliflozin, metformin, or insulin. We identified a distinctive pattern of miRs that were significantly regulated in HFpEF patients compared to healthy controls and to HFpEF patients treated with the sodium glucose cotransporter 2 (SGLT2) inhibitor empagliflozin. Three miRs were significantly downregulated (miR-126, miR-342-3p, and miR-638) and two were significantly upregulated (miR-21 and miR-92) in HFpEF patients compared to healthy controls. Strikingly, two of these miRs (miR-21 and miR-92) were significantly reduced in HFpEF patients after the 3-month treatment with empagliflozin, whereas no significant differences in the profile of endothelial miRs were detected in patients treated with metformin or insulin. Taken together, our findings demonstrate for the first time that specific circulating miRs involved in the regulation of endothelial function are significantly regulated in frail HFpEF patients with DM and in response to SGLT2 inhibition. SIGNIFICANCE STATEMENT: We have identified a novel microRNA signature functionally involved in the regulation of endothelial function that is significantly regulated in frail patients with HFpEF and diabetes. Moreover, the treatment with the SGLT2 inhibitor empagliflozin caused a modification of some of these microRNAs in a direction that was opposite to what observed in HFpEF patients, indicating a rescue of endothelial function. Our findings are relevant for clinical practice inasmuch as we were able to establish novel biomarkers of disease and response to therapy.
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Affiliation(s)
- Pasquale Mone
- Department of Medicine, Fleischer Institute for Diabetes and Metabolism (FIDAM), Einstein Institute for Aging Research, Einstein-Mount Sinai Diabetes Research Center (ES-DRC), Albert Einstein College of Medicine, New York City, New York (P.M., A.L., U.K., F.V., S.S.J., G.S.); Azienda Sanitaria Locale (ASL) Avellino, Avellino, Italy (P.M., A.P., S.D.G., M.F., G.M., S.F.); University of Salerno, Fisciano, Italy (S.M.); International Translational Research and Medical Education Consortium (ITME) and Department of Advanced Biomedical Sciences, "Federico II" University, Naples, Italy (G.S.); and Department of Molecular Pharmacology, Wilf Family Cardiovascular Research Institute, Institute for Neuroimmunology and Inflammation, Albert Einstein College of Medicine, New York City, New York (U.K., F.V., S.S.J., G.S.)
| | - Angela Lombardi
- Department of Medicine, Fleischer Institute for Diabetes and Metabolism (FIDAM), Einstein Institute for Aging Research, Einstein-Mount Sinai Diabetes Research Center (ES-DRC), Albert Einstein College of Medicine, New York City, New York (P.M., A.L., U.K., F.V., S.S.J., G.S.); Azienda Sanitaria Locale (ASL) Avellino, Avellino, Italy (P.M., A.P., S.D.G., M.F., G.M., S.F.); University of Salerno, Fisciano, Italy (S.M.); International Translational Research and Medical Education Consortium (ITME) and Department of Advanced Biomedical Sciences, "Federico II" University, Naples, Italy (G.S.); and Department of Molecular Pharmacology, Wilf Family Cardiovascular Research Institute, Institute for Neuroimmunology and Inflammation, Albert Einstein College of Medicine, New York City, New York (U.K., F.V., S.S.J., G.S.)
| | - Urna Kansakar
- Department of Medicine, Fleischer Institute for Diabetes and Metabolism (FIDAM), Einstein Institute for Aging Research, Einstein-Mount Sinai Diabetes Research Center (ES-DRC), Albert Einstein College of Medicine, New York City, New York (P.M., A.L., U.K., F.V., S.S.J., G.S.); Azienda Sanitaria Locale (ASL) Avellino, Avellino, Italy (P.M., A.P., S.D.G., M.F., G.M., S.F.); University of Salerno, Fisciano, Italy (S.M.); International Translational Research and Medical Education Consortium (ITME) and Department of Advanced Biomedical Sciences, "Federico II" University, Naples, Italy (G.S.); and Department of Molecular Pharmacology, Wilf Family Cardiovascular Research Institute, Institute for Neuroimmunology and Inflammation, Albert Einstein College of Medicine, New York City, New York (U.K., F.V., S.S.J., G.S.)
| | - Fahimeh Varzideh
- Department of Medicine, Fleischer Institute for Diabetes and Metabolism (FIDAM), Einstein Institute for Aging Research, Einstein-Mount Sinai Diabetes Research Center (ES-DRC), Albert Einstein College of Medicine, New York City, New York (P.M., A.L., U.K., F.V., S.S.J., G.S.); Azienda Sanitaria Locale (ASL) Avellino, Avellino, Italy (P.M., A.P., S.D.G., M.F., G.M., S.F.); University of Salerno, Fisciano, Italy (S.M.); International Translational Research and Medical Education Consortium (ITME) and Department of Advanced Biomedical Sciences, "Federico II" University, Naples, Italy (G.S.); and Department of Molecular Pharmacology, Wilf Family Cardiovascular Research Institute, Institute for Neuroimmunology and Inflammation, Albert Einstein College of Medicine, New York City, New York (U.K., F.V., S.S.J., G.S.)
| | - Stanislovas S Jankauskas
- Department of Medicine, Fleischer Institute for Diabetes and Metabolism (FIDAM), Einstein Institute for Aging Research, Einstein-Mount Sinai Diabetes Research Center (ES-DRC), Albert Einstein College of Medicine, New York City, New York (P.M., A.L., U.K., F.V., S.S.J., G.S.); Azienda Sanitaria Locale (ASL) Avellino, Avellino, Italy (P.M., A.P., S.D.G., M.F., G.M., S.F.); University of Salerno, Fisciano, Italy (S.M.); International Translational Research and Medical Education Consortium (ITME) and Department of Advanced Biomedical Sciences, "Federico II" University, Naples, Italy (G.S.); and Department of Molecular Pharmacology, Wilf Family Cardiovascular Research Institute, Institute for Neuroimmunology and Inflammation, Albert Einstein College of Medicine, New York City, New York (U.K., F.V., S.S.J., G.S.)
| | - Antonella Pansini
- Department of Medicine, Fleischer Institute for Diabetes and Metabolism (FIDAM), Einstein Institute for Aging Research, Einstein-Mount Sinai Diabetes Research Center (ES-DRC), Albert Einstein College of Medicine, New York City, New York (P.M., A.L., U.K., F.V., S.S.J., G.S.); Azienda Sanitaria Locale (ASL) Avellino, Avellino, Italy (P.M., A.P., S.D.G., M.F., G.M., S.F.); University of Salerno, Fisciano, Italy (S.M.); International Translational Research and Medical Education Consortium (ITME) and Department of Advanced Biomedical Sciences, "Federico II" University, Naples, Italy (G.S.); and Department of Molecular Pharmacology, Wilf Family Cardiovascular Research Institute, Institute for Neuroimmunology and Inflammation, Albert Einstein College of Medicine, New York City, New York (U.K., F.V., S.S.J., G.S.)
| | - Stefania Marzocco
- Department of Medicine, Fleischer Institute for Diabetes and Metabolism (FIDAM), Einstein Institute for Aging Research, Einstein-Mount Sinai Diabetes Research Center (ES-DRC), Albert Einstein College of Medicine, New York City, New York (P.M., A.L., U.K., F.V., S.S.J., G.S.); Azienda Sanitaria Locale (ASL) Avellino, Avellino, Italy (P.M., A.P., S.D.G., M.F., G.M., S.F.); University of Salerno, Fisciano, Italy (S.M.); International Translational Research and Medical Education Consortium (ITME) and Department of Advanced Biomedical Sciences, "Federico II" University, Naples, Italy (G.S.); and Department of Molecular Pharmacology, Wilf Family Cardiovascular Research Institute, Institute for Neuroimmunology and Inflammation, Albert Einstein College of Medicine, New York City, New York (U.K., F.V., S.S.J., G.S.)
| | - Stefano De Gennaro
- Department of Medicine, Fleischer Institute for Diabetes and Metabolism (FIDAM), Einstein Institute for Aging Research, Einstein-Mount Sinai Diabetes Research Center (ES-DRC), Albert Einstein College of Medicine, New York City, New York (P.M., A.L., U.K., F.V., S.S.J., G.S.); Azienda Sanitaria Locale (ASL) Avellino, Avellino, Italy (P.M., A.P., S.D.G., M.F., G.M., S.F.); University of Salerno, Fisciano, Italy (S.M.); International Translational Research and Medical Education Consortium (ITME) and Department of Advanced Biomedical Sciences, "Federico II" University, Naples, Italy (G.S.); and Department of Molecular Pharmacology, Wilf Family Cardiovascular Research Institute, Institute for Neuroimmunology and Inflammation, Albert Einstein College of Medicine, New York City, New York (U.K., F.V., S.S.J., G.S.)
| | - Michele Famiglietti
- Department of Medicine, Fleischer Institute for Diabetes and Metabolism (FIDAM), Einstein Institute for Aging Research, Einstein-Mount Sinai Diabetes Research Center (ES-DRC), Albert Einstein College of Medicine, New York City, New York (P.M., A.L., U.K., F.V., S.S.J., G.S.); Azienda Sanitaria Locale (ASL) Avellino, Avellino, Italy (P.M., A.P., S.D.G., M.F., G.M., S.F.); University of Salerno, Fisciano, Italy (S.M.); International Translational Research and Medical Education Consortium (ITME) and Department of Advanced Biomedical Sciences, "Federico II" University, Naples, Italy (G.S.); and Department of Molecular Pharmacology, Wilf Family Cardiovascular Research Institute, Institute for Neuroimmunology and Inflammation, Albert Einstein College of Medicine, New York City, New York (U.K., F.V., S.S.J., G.S.)
| | - Gaetano Macina
- Department of Medicine, Fleischer Institute for Diabetes and Metabolism (FIDAM), Einstein Institute for Aging Research, Einstein-Mount Sinai Diabetes Research Center (ES-DRC), Albert Einstein College of Medicine, New York City, New York (P.M., A.L., U.K., F.V., S.S.J., G.S.); Azienda Sanitaria Locale (ASL) Avellino, Avellino, Italy (P.M., A.P., S.D.G., M.F., G.M., S.F.); University of Salerno, Fisciano, Italy (S.M.); International Translational Research and Medical Education Consortium (ITME) and Department of Advanced Biomedical Sciences, "Federico II" University, Naples, Italy (G.S.); and Department of Molecular Pharmacology, Wilf Family Cardiovascular Research Institute, Institute for Neuroimmunology and Inflammation, Albert Einstein College of Medicine, New York City, New York (U.K., F.V., S.S.J., G.S.)
| | - Salvatore Frullone
- Department of Medicine, Fleischer Institute for Diabetes and Metabolism (FIDAM), Einstein Institute for Aging Research, Einstein-Mount Sinai Diabetes Research Center (ES-DRC), Albert Einstein College of Medicine, New York City, New York (P.M., A.L., U.K., F.V., S.S.J., G.S.); Azienda Sanitaria Locale (ASL) Avellino, Avellino, Italy (P.M., A.P., S.D.G., M.F., G.M., S.F.); University of Salerno, Fisciano, Italy (S.M.); International Translational Research and Medical Education Consortium (ITME) and Department of Advanced Biomedical Sciences, "Federico II" University, Naples, Italy (G.S.); and Department of Molecular Pharmacology, Wilf Family Cardiovascular Research Institute, Institute for Neuroimmunology and Inflammation, Albert Einstein College of Medicine, New York City, New York (U.K., F.V., S.S.J., G.S.)
| | - Gaetano Santulli
- Department of Medicine, Fleischer Institute for Diabetes and Metabolism (FIDAM), Einstein Institute for Aging Research, Einstein-Mount Sinai Diabetes Research Center (ES-DRC), Albert Einstein College of Medicine, New York City, New York (P.M., A.L., U.K., F.V., S.S.J., G.S.); Azienda Sanitaria Locale (ASL) Avellino, Avellino, Italy (P.M., A.P., S.D.G., M.F., G.M., S.F.); University of Salerno, Fisciano, Italy (S.M.); International Translational Research and Medical Education Consortium (ITME) and Department of Advanced Biomedical Sciences, "Federico II" University, Naples, Italy (G.S.); and Department of Molecular Pharmacology, Wilf Family Cardiovascular Research Institute, Institute for Neuroimmunology and Inflammation, Albert Einstein College of Medicine, New York City, New York (U.K., F.V., S.S.J., G.S.)
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Ma L, Gilani A, Yi Q, Tang L. MicroRNAs as Mediators of Adipose Thermogenesis and Potential Therapeutic Targets for Obesity. BIOLOGY 2022; 11:1657. [PMID: 36421371 PMCID: PMC9687157 DOI: 10.3390/biology11111657] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2022] [Revised: 11/09/2022] [Accepted: 11/11/2022] [Indexed: 07/30/2023]
Abstract
Obesity is a growing health problem worldwide, associated with an increased risk of multiple chronic diseases. The thermogenic activity of brown adipose tissue (BAT) correlates with leanness in adults. Understanding the mechanisms behind BAT activation and the process of white fat "browning" has important implications for developing new treatments to combat obesity. MicroRNAs (miRNAs) are small transcriptional regulators that control gene expression in various tissues, including adipose tissue. Recent studies show that miRNAs are involved in adipogenesis and adipose tissue thermogenesis. In this review, we discuss recent advances in the role of miRNAs in adipocyte thermogenesis and obesity. The potential for miRNA-based therapies for obesity and recommendations for future research are highlighted, which may help provide new targets for treating obesity and obesity-related diseases.
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Affiliation(s)
- Lunkun Ma
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing 400044, China
| | - Ankit Gilani
- Weill Center for Metabolic Health, Cardiovascular Research Institute, Division of Cardiology, Department of Medicine, Weill Cornell Medicine, New York, NY 10021, USA
| | - Qian Yi
- Department of Physiology, School of Basic Medical Science, Southwest Medical University, Luzhou 646099, China
| | - Liling Tang
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing 400044, China
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Guo WH, Guo Q, Liu YL, Yan DD, Jin L, Zhang R, Yan J, Luo XH, Yang M. Mutated lncRNA increase the risk of type 2 diabetes by promoting β cell dysfunction and insulin resistance. Cell Death Dis 2022; 13:904. [PMID: 36302749 PMCID: PMC9613878 DOI: 10.1038/s41419-022-05348-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Revised: 10/11/2022] [Accepted: 10/13/2022] [Indexed: 11/06/2022]
Abstract
Islet β cell dysfunction and insulin resistance are the main pathogenesis of type 2 diabetes (T2D), but the mechanism remains unclear. Here we identify a rs3819316 C > T mutation in lncRNA Reg1cp mainly expressed in islets associated with an increased risk of T2D. Analyses in 16,113 Chinese adults reveal that Mut-Reg1cp individuals had higher incidence of T2D and presented impaired insulin secretion as well as increased insulin resistance. Mice with islet β cell specific Mut-Reg1cp knock-in have more severe β cell dysfunction and insulin resistance. Mass spectrometry assay of proteins after RNA pulldown demonstrate that Mut-Reg1cp directly binds to polypyrimidine tract binding protein 1 (PTBP1), further immunofluorescence staining, western blot analysis, qPCR analysis and glucose stimulated insulin secretion test reveal that Mut-Reg1cp disrupts the stabilization of insulin mRNA by inhibiting the phosphorylation of PTBP1 in β cells. Furthermore, islet derived exosomes transfer Mut-Reg1cp into peripheral tissue, which then promote insulin resistance by inhibiting AdipoR1 translation and adiponectin signaling. Our findings identify a novel mutation in lncRNA involved in the pathogenesis of T2D, and reveal a new mechanism for the development of T2D.
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Affiliation(s)
- Wan-Hui Guo
- grid.452223.00000 0004 1757 7615Department of Endocrinology, Endocrinology Research Center, Xiangya Hospital of Central South University, 410008 Changsha, Hunan P.R. China
| | - Qi Guo
- grid.452223.00000 0004 1757 7615Department of Endocrinology, Endocrinology Research Center, Xiangya Hospital of Central South University, 410008 Changsha, Hunan P.R. China ,grid.452223.00000 0004 1757 7615National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, 410008 Changsha, Hunan P.R. China
| | - Ya-Lin Liu
- grid.452223.00000 0004 1757 7615Department of Endocrinology, Endocrinology Research Center, Xiangya Hospital of Central South University, 410008 Changsha, Hunan P.R. China
| | - Dan-Dan Yan
- grid.16821.3c0000 0004 0368 8293Shanghai Diabetes Institute, Shanghai Key Laboratory of Diabetes Mellitus, Shanghai Clinical Centre for Diabetes, Shanghai Sixth People’s Hospital affiliated to Shanghai Jiao Tong University School of Medicine, 200233 Shanghai, P.R. China
| | - Li Jin
- grid.16821.3c0000 0004 0368 8293Shanghai Diabetes Institute, Shanghai Key Laboratory of Diabetes Mellitus, Shanghai Clinical Centre for Diabetes, Shanghai Sixth People’s Hospital affiliated to Shanghai Jiao Tong University School of Medicine, 200233 Shanghai, P.R. China
| | - Rong Zhang
- grid.16821.3c0000 0004 0368 8293Shanghai Diabetes Institute, Shanghai Key Laboratory of Diabetes Mellitus, Shanghai Clinical Centre for Diabetes, Shanghai Sixth People’s Hospital affiliated to Shanghai Jiao Tong University School of Medicine, 200233 Shanghai, P.R. China
| | - Jing Yan
- grid.16821.3c0000 0004 0368 8293Shanghai Diabetes Institute, Shanghai Key Laboratory of Diabetes Mellitus, Shanghai Clinical Centre for Diabetes, Shanghai Sixth People’s Hospital affiliated to Shanghai Jiao Tong University School of Medicine, 200233 Shanghai, P.R. China
| | - Xiang-Hang Luo
- grid.452223.00000 0004 1757 7615Department of Endocrinology, Endocrinology Research Center, Xiangya Hospital of Central South University, 410008 Changsha, Hunan P.R. China ,grid.452223.00000 0004 1757 7615National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, 410008 Changsha, Hunan P.R. China
| | - Mi Yang
- grid.452223.00000 0004 1757 7615Department of Endocrinology, Endocrinology Research Center, Xiangya Hospital of Central South University, 410008 Changsha, Hunan P.R. China ,grid.452223.00000 0004 1757 7615National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, 410008 Changsha, Hunan P.R. China
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9
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Dai S, Wang C, Zhang C, Feng L, Zhang W, Zhou X, He Y, Xia X, Chen B, Song W. PTB: Not just a polypyrimidine tract-binding protein. J Cell Physiol 2022; 237:2357-2373. [PMID: 35288937 DOI: 10.1002/jcp.30716] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Revised: 02/19/2022] [Accepted: 02/22/2022] [Indexed: 01/21/2023]
Abstract
Polypyrimidine tract-binding protein (PTB), as a member of the heterogeneous nuclear ribonucleoprotein family, functions by rapidly shuttling between the nucleus and the cytoplasm. PTB is involved in the alternative splicing of pre-messenger RNA (mRNA) and almost all steps of mRNA metabolism. PTB regulation is organ-specific; brain- or muscle-specific microRNAs and long noncoding RNAs partially contribute to regulating PTB, thereby modulating many physiological and pathological processes, such as embryonic development, cell development, spermatogenesis, and neuron growth and differentiation. Previous studies have shown that PTB knockout can inhibit tumorigenesis and development. The knockout of PTB in glial cells can be reprogrammed into functional neurons, which shows great promise in the field of nerve regeneration but is controversial.
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Affiliation(s)
- Shirui Dai
- National Clinical Research Center for Geriatric Diseases, Xiangya Hospital of Central South University, Changsha, Hunan, P. R. China.,Eye Center of Xiangya Hospital, Central South University, Changsha, Hunan, P. R. China.,Hunan Key Laboratory of Ophthalmology, Changsha, Hunan, P. R. China.,Department of Ophthalmology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, P. R. China.,Hunan Clinical Research Center of Ophthalmic Disease, Changsha, Hunan, P. R. China
| | - Chao Wang
- National Clinical Research Center for Geriatric Diseases, Xiangya Hospital of Central South University, Changsha, Hunan, P. R. China.,Eye Center of Xiangya Hospital, Central South University, Changsha, Hunan, P. R. China.,Hunan Key Laboratory of Ophthalmology, Changsha, Hunan, P. R. China
| | - Cheng Zhang
- National Clinical Research Center for Geriatric Diseases, Xiangya Hospital of Central South University, Changsha, Hunan, P. R. China.,Eye Center of Xiangya Hospital, Central South University, Changsha, Hunan, P. R. China.,Hunan Key Laboratory of Ophthalmology, Changsha, Hunan, P. R. China
| | - Lemeng Feng
- National Clinical Research Center for Geriatric Diseases, Xiangya Hospital of Central South University, Changsha, Hunan, P. R. China.,Eye Center of Xiangya Hospital, Central South University, Changsha, Hunan, P. R. China.,Hunan Key Laboratory of Ophthalmology, Changsha, Hunan, P. R. China
| | - Wulong Zhang
- National Clinical Research Center for Geriatric Diseases, Xiangya Hospital of Central South University, Changsha, Hunan, P. R. China.,Eye Center of Xiangya Hospital, Central South University, Changsha, Hunan, P. R. China.,Hunan Key Laboratory of Ophthalmology, Changsha, Hunan, P. R. China
| | - Xuezhi Zhou
- National Clinical Research Center for Geriatric Diseases, Xiangya Hospital of Central South University, Changsha, Hunan, P. R. China.,Eye Center of Xiangya Hospital, Central South University, Changsha, Hunan, P. R. China.,Hunan Key Laboratory of Ophthalmology, Changsha, Hunan, P. R. China
| | - Ye He
- National Clinical Research Center for Geriatric Diseases, Xiangya Hospital of Central South University, Changsha, Hunan, P. R. China.,Eye Center of Xiangya Hospital, Central South University, Changsha, Hunan, P. R. China.,Hunan Key Laboratory of Ophthalmology, Changsha, Hunan, P. R. China
| | - Xiaobo Xia
- National Clinical Research Center for Geriatric Diseases, Xiangya Hospital of Central South University, Changsha, Hunan, P. R. China.,Eye Center of Xiangya Hospital, Central South University, Changsha, Hunan, P. R. China.,Hunan Key Laboratory of Ophthalmology, Changsha, Hunan, P. R. China
| | - Baihua Chen
- Department of Ophthalmology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, P. R. China.,Hunan Clinical Research Center of Ophthalmic Disease, Changsha, Hunan, P. R. China
| | - Weitao Song
- National Clinical Research Center for Geriatric Diseases, Xiangya Hospital of Central South University, Changsha, Hunan, P. R. China.,Eye Center of Xiangya Hospital, Central South University, Changsha, Hunan, P. R. China.,Hunan Key Laboratory of Ophthalmology, Changsha, Hunan, P. R. China
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10
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Chattopadhyay S, Joharapurkar A, Das N, Khatoon S, Kushwaha S, Gurjar AA, Singh AK, Shree S, Ahmed MZ, China SP, Pal S, Kumar H, Ramachandran R, Patel V, Trivedi AK, Lahiri A, Jain MR, Chattopadhyay N, Sanyal S. Estradiol overcomes adiponectin-resistance in diabetic mice by regulating skeletal muscle adiponectin receptor 1 expression. Mol Cell Endocrinol 2022; 540:111525. [PMID: 34856343 DOI: 10.1016/j.mce.2021.111525] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Revised: 11/26/2021] [Accepted: 11/28/2021] [Indexed: 11/19/2022]
Abstract
Adiponectin and insulin resistance creates a vicious cycle that exacerbates type 2 diabetes. Earlier, we observed that female leptin receptor-deficient BLKS mice (BKS-db/db) were more sensitive to an adiponectin mimetic GTDF than males, which led us to explore if E2 plays a crucial role in modulation of adiponectin-sensitivity. Male but not female BKS-db/db mice were resistant to metabolic effects of globular adiponectin treatment. Male BKS-db/db displayed reduced skeletal muscle AdipoR1 protein expression, which was consequent to elevated polypyrimidine tract binding protein 1 (PTB) and miR-221. E2 treatment in male BKS-db/db, and ovariectomized BALB/c mice rescued AdipoR1 protein expression via downregulation of PTB and miR-221, and also directly increased AdipoR1 mRNA by its classical nuclear receptors. Estrogen receptor regulation via dietary or pharmacological interventions may improve adiponectin resistance and consequently ameliorate insulin resistance in type 2 diabetes.
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MESH Headings
- Adiponectin/metabolism
- Animals
- Cells, Cultured
- Diabetes Mellitus, Experimental/genetics
- Diabetes Mellitus, Experimental/metabolism
- Diabetes Mellitus, Experimental/pathology
- Drug Resistance/genetics
- Estradiol/pharmacology
- Female
- Humans
- Male
- Mice
- Mice, Inbred BALB C
- Mice, Transgenic
- Muscle, Skeletal/metabolism
- Receptors, Adiponectin/genetics
- Receptors, Adiponectin/metabolism
- Receptors, Leptin/genetics
- Sex Characteristics
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Affiliation(s)
- Sourav Chattopadhyay
- Division of Biochemistry and Structural Biology, CSIR-Central Drug Research Institute, Lucknow, 226031, India; AcSIR, CSIR-Central Drug Research Institute Campus, Lucknow, 226031, India
| | | | - Nabanita Das
- Division of Biochemistry and Structural Biology, CSIR-Central Drug Research Institute, Lucknow, 226031, India
| | - Shamima Khatoon
- Division of Biochemistry and Structural Biology, CSIR-Central Drug Research Institute, Lucknow, 226031, India
| | - Sapana Kushwaha
- Division of Biochemistry and Structural Biology, CSIR-Central Drug Research Institute, Lucknow, 226031, India
| | - Anagha Ashok Gurjar
- Division of Biochemistry and Structural Biology, CSIR-Central Drug Research Institute, Lucknow, 226031, India; AcSIR, CSIR-Central Drug Research Institute Campus, Lucknow, 226031, India
| | - Abhishek Kumar Singh
- Division of Biochemistry and Structural Biology, CSIR-Central Drug Research Institute, Lucknow, 226031, India
| | - Sonal Shree
- Division of Biochemistry and Structural Biology, CSIR-Central Drug Research Institute, Lucknow, 226031, India
| | - Md Zohaib Ahmed
- Division of Biochemistry and Structural Biology, CSIR-Central Drug Research Institute, Lucknow, 226031, India
| | - Shyamsundar Pal China
- AcSIR, CSIR-Central Drug Research Institute Campus, Lucknow, 226031, India; Division of Endocrinology, CSIR-Central Drug Research Institute, Lucknow, 226031, India
| | - Subhashis Pal
- Division of Endocrinology, CSIR-Central Drug Research Institute, Lucknow, 226031, India
| | - Harish Kumar
- Division of Biochemistry and Structural Biology, CSIR-Central Drug Research Institute, Lucknow, 226031, India
| | - Ravishankar Ramachandran
- Division of Biochemistry and Structural Biology, CSIR-Central Drug Research Institute, Lucknow, 226031, India; AcSIR, CSIR-Central Drug Research Institute Campus, Lucknow, 226031, India
| | - Vishal Patel
- Zydus Research Center, Moraiya, Ahmedabad, 382213, Gujarat, India
| | - Arun Kumar Trivedi
- AcSIR, CSIR-Central Drug Research Institute Campus, Lucknow, 226031, India; Division of Cancer Biology, CSIR-Central Drug Research Institute, Lucknow, 226031, India
| | - Amit Lahiri
- AcSIR, CSIR-Central Drug Research Institute Campus, Lucknow, 226031, India; Division of Pharmacology, CSIR-Central Drug Research Institute, Lucknow, 226031, India
| | | | - Naibedya Chattopadhyay
- AcSIR, CSIR-Central Drug Research Institute Campus, Lucknow, 226031, India; Division of Endocrinology, CSIR-Central Drug Research Institute, Lucknow, 226031, India
| | - Sabyasachi Sanyal
- Division of Biochemistry and Structural Biology, CSIR-Central Drug Research Institute, Lucknow, 226031, India; AcSIR, CSIR-Central Drug Research Institute Campus, Lucknow, 226031, India.
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11
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microRNAs in Human Adipose Tissue Physiology and Dysfunction. Cells 2021; 10:cells10123342. [PMID: 34943849 PMCID: PMC8699244 DOI: 10.3390/cells10123342] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Revised: 11/20/2021] [Accepted: 11/26/2021] [Indexed: 12/11/2022] Open
Abstract
In recent years, there has been a large amount of evidence on the role of microRNA (miRNA) in regulating adipose tissue physiology. Indeed, miRNAs control critical steps in adipocyte differentiation, proliferation and browning, as well as lipolysis, lipogenesis and adipokine secretion. Overnutrition leads to a significant change in the adipocyte miRNOME, resulting in adipose tissue dysfunction. Moreover, via secreted mediators, dysfunctional adipocytes may impair the function of other organs and tissues. However, given their potential to control cell and whole-body energy expenditure, miRNAs also represent critical therapeutic targets for treating obesity and related metabolic complications. This review attempts to integrate present concepts on the role miRNAs play in adipose tissue physiology and obesity-related dysfunction and data from pre-clinical and clinical studies on the diagnostic or therapeutic potential of miRNA in obesity and its related complications.
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12
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Yusof KM, Groen K, Rosli R, Avery-Kiejda KA. Crosstalk Between microRNAs and the Pathological Features of Secondary Lymphedema. Front Cell Dev Biol 2021; 9:732415. [PMID: 34733847 PMCID: PMC8558478 DOI: 10.3389/fcell.2021.732415] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Accepted: 10/01/2021] [Indexed: 01/07/2023] Open
Abstract
Secondary lymphedema is characterized by lymphatic fluid retention and subsequent tissue swelling in one or both limbs that can lead to decreased quality of life. It often arises after loss, obstruction, or blockage of lymphatic vessels due to multifactorial modalities, such as lymphatic insults after surgery, immune system dysfunction, deposition of fat that compresses the lymphatic capillaries, fibrosis, and inflammation. Although secondary lymphedema is often associated with breast cancer, the condition can occur in patients with any type of cancer that requires lymphadenectomy such as gynecological, genitourinary, or head and neck cancers. MicroRNAs demonstrate pivotal roles in regulating gene expression in biological processes such as lymphangiogenesis, angiogenesis, modulation of the immune system, and oxidative stress. MicroRNA profiling has led to the discovery of the molecular mechanisms involved in the pathophysiology of auto-immune, inflammation-related, and metabolic diseases. Although the role of microRNAs in regulating secondary lymphedema is yet to be elucidated, the crosstalk between microRNAs and molecular factors involved in the pathological features of lymphedema, such as skin fibrosis, inflammation, immune dysregulation, and aberrant lipid metabolism have been demonstrated in several studies. MicroRNAs have the potential to serve as biomarkers for diseases and elucidation of their roles in lymphedema can provide a better understanding or new insights of the mechanisms underlying this debilitating condition.
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Affiliation(s)
- Khairunnisa' Md Yusof
- Hunter Medical Research Institute, New Lambton Heights, NSW, Australia.,School of Biomedical Sciences and Pharmacy, College of Health, Medicine and Wellbeing, The University of Newcastle, Newcastle, NSW, Australia.,Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang, Malaysia
| | - Kira Groen
- Hunter Medical Research Institute, New Lambton Heights, NSW, Australia.,School of Biomedical Sciences and Pharmacy, College of Health, Medicine and Wellbeing, The University of Newcastle, Newcastle, NSW, Australia
| | - Rozita Rosli
- Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang, Malaysia.,UPM-MAKNA Cancer Research Laboratory, Institute of Bioscience, Universiti Putra Malaysia, Serdang, Malaysia
| | - Kelly A Avery-Kiejda
- Hunter Medical Research Institute, New Lambton Heights, NSW, Australia.,School of Biomedical Sciences and Pharmacy, College of Health, Medicine and Wellbeing, The University of Newcastle, Newcastle, NSW, Australia
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13
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Rabin A, Zaffagni M, Ashwal-Fluss R, Patop IL, Jajoo A, Shenzis S, Carmel L, Kadener S. SRCP: a comprehensive pipeline for accurate annotation and quantification of circRNAs. Genome Biol 2021; 22:277. [PMID: 34556162 PMCID: PMC8459468 DOI: 10.1186/s13059-021-02497-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Accepted: 09/13/2021] [Indexed: 12/20/2022] Open
Abstract
Here we describe a new integrative approach for accurate annotation and quantification of circRNAs named Short Read circRNA Pipeline (SRCP). Our strategy involves two steps: annotation of validated circRNAs followed by a quantification step. We show that SRCP is more sensitive than other individual pipelines and allows for more comprehensive quantification of a larger number of differentially expressed circRNAs. To facilitate the use of SRCP, we generate a comprehensive collection of validated circRNAs in five different organisms, including humans. We then utilize our approach and identify a subset of circRNAs bound to the miRNA-effector protein AGO2 in human brain samples.
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Affiliation(s)
- Avigayel Rabin
- Biological Chemistry Department, Silberman Institute of Life Sciences, The Hebrew University of Jerusalem, 91904, Jerusalem, Israel
| | - Michela Zaffagni
- Biology Department, Brandeis University, Waltham, MA, 02454, USA
| | - Reut Ashwal-Fluss
- Biological Chemistry Department, Silberman Institute of Life Sciences, The Hebrew University of Jerusalem, 91904, Jerusalem, Israel
| | - Ines Lucia Patop
- Biology Department, Brandeis University, Waltham, MA, 02454, USA
| | - Aarti Jajoo
- Biology Department, Brandeis University, Waltham, MA, 02454, USA
| | - Shlomo Shenzis
- Biological Chemistry Department, Silberman Institute of Life Sciences, The Hebrew University of Jerusalem, 91904, Jerusalem, Israel
| | - Liran Carmel
- Department of Genetics, Silberman Institute of Life Sciences, The Hebrew University of Jerusalem, 91904, Jerusalem, Israel
| | - Sebastian Kadener
- Biological Chemistry Department, Silberman Institute of Life Sciences, The Hebrew University of Jerusalem, 91904, Jerusalem, Israel.
- Biology Department, Brandeis University, Waltham, MA, 02454, USA.
- Department of Genetics, Silberman Institute of Life Sciences, The Hebrew University of Jerusalem, 91904, Jerusalem, Israel.
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14
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Ehtesham N, Shahrbanian S, Valadiathar M, Mowla SJ. Modulations of obesity-related microRNAs after exercise intervention: a systematic review and bioinformatics analysis. Mol Biol Rep 2021; 48:2817-2831. [PMID: 33772703 DOI: 10.1007/s11033-021-06275-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Accepted: 03/11/2021] [Indexed: 12/26/2022]
Abstract
Obesity is one of the prevalent health-threatening conditions; however, it is preventable by lifestyle interventions such as exercise. The molecular mechanisms underlying physiological adaptation to physical activity are not fully understood. It has been documented that both intracellular and extracellular (circulating) microRNAs (miRNAs) are involved in both obesogenic and exercise adaptation mechanisms. We aimed to conduct a systematic review of publications that examined the effect of exercise on the expression of miRNAs in individuals with obesity. In addition, bioinformatics analysis was performed on most repetitive miRNAs. PubMed, Scopus, and Google Scholar were searched with relevant keywords. We only included studies that utilized exercise as a modality for the health management of human subjects with obesity to evaluate the changes in expression of obesity-related miRNAs. Through checking of 211 retrieved articles, we reached 12 eligible studies. Some studies reported a statistically significant correlation between the change of miRNAs and clinical parameters such as body mass index and fasting glucose. In silico analysis of most repetitive miRNAs i.e. miR-126, miR-21, miR-146a, miR-221, and miR-223 resulted in the molecular signaling pathways that potentially involve in cellular adaption to exercise in people with obesity. miRNAs partake in health-related benefits of physical activity on obesity-associated cellular and molecular phenomena. However, our understanding of the exact mechanism is still in its infancy. Consistently, the clinicians waiting for the result of more integrated experiments to develop a miRNAs panel as a predictive biomarker of exercise in patients with obesity.
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Affiliation(s)
- Naeim Ehtesham
- Student Research Committee, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran.,Department of Genetics and Molecular Biology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Shahnaz Shahrbanian
- Department of Sport Science, Faculty of Humanities, Tarbiat Modares University, P.O. Box: 14115-111, Tehran, Iran.
| | - Mohammad Valadiathar
- Department of Sport Science, Faculty of Humanities, Tarbiat Modares University, P.O. Box: 14115-111, Tehran, Iran
| | - Seyed Javad Mowla
- Departments of Molecular Genetics, Faculty of Biological Science, Tarbiat Modares University, Tehran, Iran
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15
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Nishida K, Shimozuru M, Okamatsu-Ogura Y, Miyazaki M, Soma T, Sashika M, Tsubota T. Changes in liver microRNA expression and their possible regulatory role in energy metabolism-related genes in hibernating black bears. J Comp Physiol B 2021; 191:397-409. [PMID: 33459845 DOI: 10.1007/s00360-020-01337-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Revised: 12/22/2020] [Accepted: 12/30/2020] [Indexed: 01/12/2023]
Abstract
Hibernating bears survive up to 6 months without feeding while yet maintaining metabolic homeostasis. We previously reported expression changes in energy metabolism-related genes in the liver of hibernating Japanese black bears. The present study examined the role of microRNAs in the regulation of hepatic gene expression during hibernation. The quantitative analyses revealed significant increases in the expression of 4 microRNAs (miR-221-3p, miR-222-3p, miR-455-3p, and miR-195a-5p) and decreases of 2 microRNAs (miR-122-5p and miR-7a-1-5p) during hibernation. RNA sequencing and in silico target prediction regarding 3 upregulated microRNAs (miR-221-3p, miR-222-3p and miR-455-3p) found 13 target mRNAs with significantly decreased expression during hibernation. The transfection of microRNA mimics into cells showed that miR-222 and miR-455 reduced solute carrier family 16 member 4 (SLC16A4) and fatty acid synthase (FASN) mRNA expression, respectively. Our results suggest that the increased levels of hepatic miRNA during hibernation (miR-222-3p and miR-455-3p) negatively regulate the expression of targeted genes predicted to be involved in the transport of energy source and de novo fatty acid synthesis, is consistent with a regulatory role of these miRNAs in energy metabolism in hibernating black bears.
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Affiliation(s)
- Kazuhei Nishida
- Laboratory of Wildlife Biology and Medicine, Faculty of Veterinary Medicine, Hokkaido University, Kita 18 Nishi 9, Kita-ku, Sapporo, Hokkaido, 060-0818, Japan
| | - Michito Shimozuru
- Laboratory of Wildlife Biology and Medicine, Faculty of Veterinary Medicine, Hokkaido University, Kita 18 Nishi 9, Kita-ku, Sapporo, Hokkaido, 060-0818, Japan.
| | - Yuko Okamatsu-Ogura
- Laboratory of Biochemistry, Faculty of Veterinary Medicine, Hokkaido University, Kita 18 Nishi 9, Kita-ku, Sapporo, Hokkaido, 060-0818, Japan
| | - Mitsunori Miyazaki
- Department of Physical Therapy, School of Rehabilitation Sciences, Health Sciences University of Hokkaido, Hokkaido, 061-0293, Japan
| | - Tsukasa Soma
- Laboratory of Wildlife Biology and Medicine, Faculty of Veterinary Medicine, Hokkaido University, Kita 18 Nishi 9, Kita-ku, Sapporo, Hokkaido, 060-0818, Japan
| | - Mariko Sashika
- Laboratory of Wildlife Biology and Medicine, Faculty of Veterinary Medicine, Hokkaido University, Kita 18 Nishi 9, Kita-ku, Sapporo, Hokkaido, 060-0818, Japan
| | - Toshio Tsubota
- Laboratory of Wildlife Biology and Medicine, Faculty of Veterinary Medicine, Hokkaido University, Kita 18 Nishi 9, Kita-ku, Sapporo, Hokkaido, 060-0818, Japan
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16
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Gharanei S, Shabir K, Brown JE, Weickert MO, Barber TM, Kyrou I, Randeva HS. Regulatory microRNAs in Brown, Brite and White Adipose Tissue. Cells 2020; 9:cells9112489. [PMID: 33207733 PMCID: PMC7696849 DOI: 10.3390/cells9112489] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 11/02/2020] [Accepted: 11/13/2020] [Indexed: 02/07/2023] Open
Abstract
MicroRNAs (miRNAs) constitute a class of short noncoding RNAs which regulate gene expression by targeting messenger RNA, inducing translational repression and messenger RNA degradation. This regulation of gene expression by miRNAs in adipose tissue (AT) can impact on the regulation of metabolism and energy homeostasis, particularly considering the different types of adipocytes which exist in mammals, i.e., white adipocytes (white AT; WAT), brown adipocytes (brown AT; BAT), and inducible brown adipocytes in WAT (beige or brite or brown-in-white adipocytes). Indeed, an increasing number of miRNAs has been identified to regulate key signaling pathways of adipogenesis in BAT, brite AT, and WAT by acting on transcription factors that promote or inhibit adipocyte differentiation. For example, MiR-328, MiR-378, MiR-30b/c, MiR-455, MiR-32, and MiR-193b-365 activate brown adipogenesis, whereas MiR-34a, MiR-133, MiR-155, and MiR-27b are brown adipogenesis inhibitors. Given that WAT mainly stores energy as lipids, whilst BAT mainly dissipates energy as heat, clarifying the effects of miRNAs in different types of AT has recently attracted significant research interest, aiming to also develop novel miRNA-based therapies against obesity, diabetes, and other obesity-related diseases. Therefore, this review presents an up-to-date comprehensive overview of the role of key regulatory miRNAs in BAT, brite AT, and WAT.
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Affiliation(s)
- Seley Gharanei
- Warwickshire Institute for the Study of Diabetes, Endocrinology and Metabolism (WISDEM), University Hospitals Coventry and Warwickshire NHS Trust, Coventry CV2 2DX, UK; (S.G.); (M.O.W.); (T.M.B.); (I.K.)
- Warwick Medical School, University of Warwick, Coventry CV4 7AL, UK
| | - Kiran Shabir
- Aston Medical Research Institute, Aston Medical School, College of Health and Life Sciences, Aston University, Birmingham B4 7ET, UK; (K.S.); (J.E.B.)
| | - James E. Brown
- Aston Medical Research Institute, Aston Medical School, College of Health and Life Sciences, Aston University, Birmingham B4 7ET, UK; (K.S.); (J.E.B.)
- School of Biosciences, College of Health and Life Sciences, Aston University, Birmingham B4 7ET, UK
| | - Martin O. Weickert
- Warwickshire Institute for the Study of Diabetes, Endocrinology and Metabolism (WISDEM), University Hospitals Coventry and Warwickshire NHS Trust, Coventry CV2 2DX, UK; (S.G.); (M.O.W.); (T.M.B.); (I.K.)
- Warwick Medical School, University of Warwick, Coventry CV4 7AL, UK
- Centre of Applied Biological & Exercise Sciences, Faculty of Health & Life Sciences, Coventry University, Coventry CV1 5FB, UK
| | - Thomas M. Barber
- Warwickshire Institute for the Study of Diabetes, Endocrinology and Metabolism (WISDEM), University Hospitals Coventry and Warwickshire NHS Trust, Coventry CV2 2DX, UK; (S.G.); (M.O.W.); (T.M.B.); (I.K.)
- Warwick Medical School, University of Warwick, Coventry CV4 7AL, UK
| | - Ioannis Kyrou
- Warwickshire Institute for the Study of Diabetes, Endocrinology and Metabolism (WISDEM), University Hospitals Coventry and Warwickshire NHS Trust, Coventry CV2 2DX, UK; (S.G.); (M.O.W.); (T.M.B.); (I.K.)
- Warwick Medical School, University of Warwick, Coventry CV4 7AL, UK
- Aston Medical Research Institute, Aston Medical School, College of Health and Life Sciences, Aston University, Birmingham B4 7ET, UK; (K.S.); (J.E.B.)
| | - Harpal S. Randeva
- Warwickshire Institute for the Study of Diabetes, Endocrinology and Metabolism (WISDEM), University Hospitals Coventry and Warwickshire NHS Trust, Coventry CV2 2DX, UK; (S.G.); (M.O.W.); (T.M.B.); (I.K.)
- Warwick Medical School, University of Warwick, Coventry CV4 7AL, UK
- Aston Medical Research Institute, Aston Medical School, College of Health and Life Sciences, Aston University, Birmingham B4 7ET, UK; (K.S.); (J.E.B.)
- Correspondence:
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Hess AL, Larsen LH, Udesen PB, Sanz Y, Larsen TM, Dalgaard LT. Levels of Circulating miR-122 are Associated with Weight Loss and Metabolic Syndrome. Obesity (Silver Spring) 2020; 28:493-501. [PMID: 32090516 DOI: 10.1002/oby.22704] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Accepted: 10/14/2019] [Indexed: 12/24/2022]
Abstract
OBJECTIVE This study investigated whether the levels of specific serum microRNAs (miRNAs) were altered following diet-induced weight loss and whether the serum miRNAs differed in the presence of the metabolic syndrome. METHODS The study was a weight loss intervention trial with a prescribed energy deficit of approximately 500 kcal/d. Levels of 22 miRNAs were determined in serum samples from 85 participants with overweight or obesity. miRNAs were analyzed using TaqMan Array miRNA Cards and normalized to the geometric mean of spiked-in ath-miR-159a and U6 small nuclear RNA using the ΔCT method. RESULTS The average weight loss was 5.7 kg (P < 0.001). miR-122-5p (-0.18 ± 0.06 log fold relative to initial, P < 0.01) and miR-193a-5p (-0.12 ± 0.04, P < 0.01) levels decreased in response to weight loss. miR-126a-3p (0.11 ± 0.04, P = 0.01) and miR-222-3p (1.51 ± 0.12, P < 0.001) levels increased. Furthermore, a higher level of miR-122-5p was observed at baseline in participants with the metabolic syndrome compared with participants without (0.28 ± 0.08, P < 0.01). CONCLUSIONS Changes in circulating miR-122-5p, miR-126a-3p, miR-193a-5p, and miR-222-3p in response to diet-induced weight loss are demonstrated. Furthermore, assessment of miR-122-5p could be an indicator of an adverse metabolic health status independent of obesity.
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Affiliation(s)
- Anne Lundby Hess
- Department of Nutrition, Exercise and Sports, Faculty of Science, University of Copenhagen, Frederiksberg, Denmark
| | - Lesli Hingstrup Larsen
- Department of Nutrition, Exercise and Sports, Faculty of Science, University of Copenhagen, Frederiksberg, Denmark
| | - Pernille Baekgaard Udesen
- Department of Science and Environment, Roskilde University, Roskilde, Denmark
- Department of Gynaecology and Obstetrics, Fertility Clinic, Zealand University Hospital, Køge, Denmark
| | - Yolanda Sanz
- Microbial Ecology, Nutrition and Health Research Unit, Institute of Agrochemistry and Food Technology, National Research Council (IATA-CSIC), Valencia, Spain
| | - Thomas Meinert Larsen
- Department of Nutrition, Exercise and Sports, Faculty of Science, University of Copenhagen, Frederiksberg, Denmark
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Zhang DD, Wang DD, Wang Z, Wang YB, Li GX, Sun GR, Tian YD, Han RL, Li ZJ, Jiang RR, Liu XJ, Kang XT, Li H. Estrogen Abolishes the Repression Role of gga-miR-221-5p Targeting ELOVL6 and SQLE to Promote Lipid Synthesis in Chicken Liver. Int J Mol Sci 2020; 21:ijms21051624. [PMID: 32120850 PMCID: PMC7084605 DOI: 10.3390/ijms21051624] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2020] [Revised: 02/23/2020] [Accepted: 02/24/2020] [Indexed: 01/01/2023] Open
Abstract
Few studies have been conducted regarding the biological function and regulation role of gga-miR-221-5p in the liver. We compared the conservation of miR-221-5p among species and investigated the expression pattern of gga-miR-221-5p, validating the direct target genes of gga-miR-221-5p by dual luciferase reporter assay, the biological function of gga-miR-221-5p in the liver was studied by gga-miR-221-5p overexpression and inhibition. Furthermore, we explored the regulation of gga-miR-221-5p and its target genes by treatment with estrogen and estrogen antagonists in vivo and in vitro. The results showed that miR-221-5p was highly conserved among species, expressed in all tested tissues and significantly downregulated in peak-laying hen liver compared to pre-laying hen liver. Gga-miR-221-5p could directly target the expression of elongase of very long chain fatty acids 6 (ELOVL6) and squalene epoxidase (SQLE) genes to affect triglyceride and total cholesterol content in the liver. 17β-estradiol could significantly inhibit the expression of gga-miR-221-5p but promote the expression of ELOVL6 and SQLE genes. In conclusion, the highly conservative gga-miR-221-5p could directly target ELOVL6 and SQLE mRNAs to affect the level of intracellular triglyceride and total cholesterol. Meanwhile, 17β-estradiol could repress the expression of gga-miR-221-5p but increase the expression of ELOVL6 and SQLE, therefore promoting the synthesis of intracellular triglyceride and cholesterol levels in the liver of egg-laying chicken.
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Affiliation(s)
- Ding-Ding Zhang
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou 450002, China; (D.-D.Z.); (D.-D.W.); (Z.W.); (Y.-B.W.); (G.-X.L.); (G.-R.S.); (Y.-D.T.); (R.-L.H.); (Z.-J.L.); (R.-R.J.); (X.-J.L.); (X.-T.K.)
| | - Dan-Dan Wang
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou 450002, China; (D.-D.Z.); (D.-D.W.); (Z.W.); (Y.-B.W.); (G.-X.L.); (G.-R.S.); (Y.-D.T.); (R.-L.H.); (Z.-J.L.); (R.-R.J.); (X.-J.L.); (X.-T.K.)
| | - Zhang Wang
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou 450002, China; (D.-D.Z.); (D.-D.W.); (Z.W.); (Y.-B.W.); (G.-X.L.); (G.-R.S.); (Y.-D.T.); (R.-L.H.); (Z.-J.L.); (R.-R.J.); (X.-J.L.); (X.-T.K.)
| | - Yang-Bin Wang
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou 450002, China; (D.-D.Z.); (D.-D.W.); (Z.W.); (Y.-B.W.); (G.-X.L.); (G.-R.S.); (Y.-D.T.); (R.-L.H.); (Z.-J.L.); (R.-R.J.); (X.-J.L.); (X.-T.K.)
- Henan Innovative Engineering Research Center of Poultry, Zhengzhou 450002, China
- International Joint Research Laboratory for Poultry Breeding of Henan, Zhengzhou 450002, China
| | - Guo-Xi Li
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou 450002, China; (D.-D.Z.); (D.-D.W.); (Z.W.); (Y.-B.W.); (G.-X.L.); (G.-R.S.); (Y.-D.T.); (R.-L.H.); (Z.-J.L.); (R.-R.J.); (X.-J.L.); (X.-T.K.)
- Henan Innovative Engineering Research Center of Poultry, Zhengzhou 450002, China
- International Joint Research Laboratory for Poultry Breeding of Henan, Zhengzhou 450002, China
| | - Gui-Rong Sun
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou 450002, China; (D.-D.Z.); (D.-D.W.); (Z.W.); (Y.-B.W.); (G.-X.L.); (G.-R.S.); (Y.-D.T.); (R.-L.H.); (Z.-J.L.); (R.-R.J.); (X.-J.L.); (X.-T.K.)
- Henan Innovative Engineering Research Center of Poultry, Zhengzhou 450002, China
- International Joint Research Laboratory for Poultry Breeding of Henan, Zhengzhou 450002, China
| | - Ya-Dong Tian
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou 450002, China; (D.-D.Z.); (D.-D.W.); (Z.W.); (Y.-B.W.); (G.-X.L.); (G.-R.S.); (Y.-D.T.); (R.-L.H.); (Z.-J.L.); (R.-R.J.); (X.-J.L.); (X.-T.K.)
- Henan Innovative Engineering Research Center of Poultry, Zhengzhou 450002, China
- International Joint Research Laboratory for Poultry Breeding of Henan, Zhengzhou 450002, China
| | - Rui-Li Han
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou 450002, China; (D.-D.Z.); (D.-D.W.); (Z.W.); (Y.-B.W.); (G.-X.L.); (G.-R.S.); (Y.-D.T.); (R.-L.H.); (Z.-J.L.); (R.-R.J.); (X.-J.L.); (X.-T.K.)
- Henan Innovative Engineering Research Center of Poultry, Zhengzhou 450002, China
- International Joint Research Laboratory for Poultry Breeding of Henan, Zhengzhou 450002, China
| | - Zhuan-Jian Li
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou 450002, China; (D.-D.Z.); (D.-D.W.); (Z.W.); (Y.-B.W.); (G.-X.L.); (G.-R.S.); (Y.-D.T.); (R.-L.H.); (Z.-J.L.); (R.-R.J.); (X.-J.L.); (X.-T.K.)
- Henan Innovative Engineering Research Center of Poultry, Zhengzhou 450002, China
- International Joint Research Laboratory for Poultry Breeding of Henan, Zhengzhou 450002, China
| | - Rui-Rui Jiang
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou 450002, China; (D.-D.Z.); (D.-D.W.); (Z.W.); (Y.-B.W.); (G.-X.L.); (G.-R.S.); (Y.-D.T.); (R.-L.H.); (Z.-J.L.); (R.-R.J.); (X.-J.L.); (X.-T.K.)
- Henan Innovative Engineering Research Center of Poultry, Zhengzhou 450002, China
- International Joint Research Laboratory for Poultry Breeding of Henan, Zhengzhou 450002, China
| | - Xiao-Jun Liu
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou 450002, China; (D.-D.Z.); (D.-D.W.); (Z.W.); (Y.-B.W.); (G.-X.L.); (G.-R.S.); (Y.-D.T.); (R.-L.H.); (Z.-J.L.); (R.-R.J.); (X.-J.L.); (X.-T.K.)
- Henan Innovative Engineering Research Center of Poultry, Zhengzhou 450002, China
- International Joint Research Laboratory for Poultry Breeding of Henan, Zhengzhou 450002, China
| | - Xiang-Tao Kang
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou 450002, China; (D.-D.Z.); (D.-D.W.); (Z.W.); (Y.-B.W.); (G.-X.L.); (G.-R.S.); (Y.-D.T.); (R.-L.H.); (Z.-J.L.); (R.-R.J.); (X.-J.L.); (X.-T.K.)
- Henan Innovative Engineering Research Center of Poultry, Zhengzhou 450002, China
- International Joint Research Laboratory for Poultry Breeding of Henan, Zhengzhou 450002, China
| | - Hong Li
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou 450002, China; (D.-D.Z.); (D.-D.W.); (Z.W.); (Y.-B.W.); (G.-X.L.); (G.-R.S.); (Y.-D.T.); (R.-L.H.); (Z.-J.L.); (R.-R.J.); (X.-J.L.); (X.-T.K.)
- Henan Innovative Engineering Research Center of Poultry, Zhengzhou 450002, China
- International Joint Research Laboratory for Poultry Breeding of Henan, Zhengzhou 450002, China
- Correspondence:
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Lin H, Tas E, Børsheim E, Mercer KE. Circulating miRNA Signatures Associated with Insulin Resistance in Adolescents with Obesity. Diabetes Metab Syndr Obes 2020; 13:4929-4939. [PMID: 33328751 PMCID: PMC7735788 DOI: 10.2147/dmso.s273908] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/25/2020] [Accepted: 10/08/2020] [Indexed: 12/16/2022] Open
Abstract
PURPOSE MicroRNAs (miRNAs) are implicated in metabolic changes accompanying progression of obesity, insulin resistance (IR), and metabolic disorders in children. Identifying circulating miRNAs that uniquely associate with these disorders may be useful in early identification and prevention of obesity-related complications. We aimed to identify circulating miRNA signatures that distinguish adolescents with obesity and IR from those with obesity unaccompanied by IR. METHODS Adolescents (aged 10-17 years) with obesity were recruited from a weight management clinic. Fasting serum samples were obtained from 33 participants. A total of 179 miRNAs were queried by a quantitative RT-PCR-based miRNA focus panel. Differentially expressed miRNAs were compared between groups using Student's t-test or one-way ANOVA analysis, and the association between IR evaluated by homeostatic model assessment model (HOMA-IR > 4) and body mass index (BMI) status was assessed using Pearson's correlation analysis. RESULTS We found an expression pattern consisting of 12 elevated miRNAs linked to IR in obese adolescents. miR-30d, -221, and -122 were significantly correlated with clinical and biochemical markers of obesity and IR, suggestive of IR in adolescents at risk. CONCLUSION Specific signatures of circulating miRNAs reflected metabolic phenotypes and predicted the presence of IR in adolescents with obesity, suggesting that miRNA indicators may identify obesity-associated complications in childhood. Further studies will be needed to understand cause versus effect and the mechanisms by which IR status links to changes in blood miRNA profiles.
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Affiliation(s)
- Haixia Lin
- Arkansas Children’s Nutrition Center, Little Rock, AR, USA
- Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - Emir Tas
- Arkansas Children’s Nutrition Center, Little Rock, AR, USA
- Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock, AR, USA
- Endocrinology and Diabetes, Arkansas Children’s Hospital, Little Rock, AR, USA
- Center for Childhood Obesity Prevention, Little Rock, AR, USA
- Arkansas Children’s Research Institute, Little Rock, AR, USA
| | - Elisabet Børsheim
- Arkansas Children’s Nutrition Center, Little Rock, AR, USA
- Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock, AR, USA
- Center for Childhood Obesity Prevention, Little Rock, AR, USA
- Arkansas Children’s Research Institute, Little Rock, AR, USA
| | - Kelly E Mercer
- Arkansas Children’s Nutrition Center, Little Rock, AR, USA
- Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock, AR, USA
- Center for Childhood Obesity Prevention, Little Rock, AR, USA
- Correspondence: Kelly E Mercer; Haixia Lin Arkansas Children’s Nutrition Center, 15 Children’s Way, Little Rock, AR72202, USATel +1-501-364-2706Fax +1-501-364-3161 Email ;
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20
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Venkata Subbaiah KC, Hedaya O, Wu J, Jiang F, Yao P. Mammalian RNA switches: Molecular rheostats in gene regulation, disease, and medicine. Comput Struct Biotechnol J 2019; 17:1326-1338. [PMID: 31741723 PMCID: PMC6849081 DOI: 10.1016/j.csbj.2019.10.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2019] [Revised: 09/30/2019] [Accepted: 10/07/2019] [Indexed: 01/12/2023] Open
Abstract
Alteration of RNA structure by environmental signals is a fundamental mechanism of gene regulation. For example, the riboswitch is a noncoding RNA regulatory element that binds a small molecule and causes a structural change in the RNA, thereby regulating transcription, splicing, or translation of an mRNA. The role of riboswitches in metabolite sensing and gene regulation in bacteria and other lower species was reported almost two decades ago, but riboswitches have not yet been discovered in mammals. An analog of the riboswitch, the protein-directed RNA switch (PDRS), has been identified as an important regulatory mechanism of gene expression in mammalian cells. RNA-binding proteins and microRNAs are two major executors of PDRS via their interaction with target transcripts in mammals. These protein-RNA interactions influence cellular functions by integrating environmental signals and intracellular pathways from disparate stimuli to modulate stability or translation of specific mRNAs. The discovery of a riboswitch in eukaryotes that is composed of a single class of thiamine pyrophosphate (TPP) suggests that additional ligand-sensing RNAs may be present to control eukaryotic or mammalian gene expression. In this review, we focus on protein-directed RNA switch mechanisms in mammals. We offer perspectives on the potential discovery of mammalian protein-directed and compound-dependent RNA switches that are related to human disease and medicine.
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Affiliation(s)
- Kadiam C Venkata Subbaiah
- Aab Cardiovascular Research Institute, Department of Medicine, University of Rochester School of Medicine & Dentistry, Rochester, NY 14586, United States
| | - Omar Hedaya
- Aab Cardiovascular Research Institute, Department of Medicine, University of Rochester School of Medicine & Dentistry, Rochester, NY 14586, United States.,Department of Biochemistry & Biophysics, University of Rochester School of Medicine & Dentistry, Rochester, NY 14586, United States
| | - Jiangbin Wu
- Aab Cardiovascular Research Institute, Department of Medicine, University of Rochester School of Medicine & Dentistry, Rochester, NY 14586, United States
| | - Feng Jiang
- Aab Cardiovascular Research Institute, Department of Medicine, University of Rochester School of Medicine & Dentistry, Rochester, NY 14586, United States.,Department of Biochemistry & Biophysics, University of Rochester School of Medicine & Dentistry, Rochester, NY 14586, United States
| | - Peng Yao
- Aab Cardiovascular Research Institute, Department of Medicine, University of Rochester School of Medicine & Dentistry, Rochester, NY 14586, United States.,Department of Biochemistry & Biophysics, University of Rochester School of Medicine & Dentistry, Rochester, NY 14586, United States.,The Center for RNA Biology, University of Rochester School of Medicine & Dentistry, Rochester, NY 14586, United States.,The Center for Biomedical Informatics, University of Rochester School of Medicine & Dentistry, Rochester, NY 14586, United States
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21
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Ghasemi A, Hashemy SI, Azimi-Nezhad M, Dehghani A, Saeidi J, Mohtashami M. The cross-talk between adipokines and miRNAs in health and obesity-mediated diseases. Clin Chim Acta 2019; 499:41-53. [PMID: 31476303 DOI: 10.1016/j.cca.2019.08.028] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2019] [Revised: 08/28/2019] [Accepted: 08/28/2019] [Indexed: 12/11/2022]
Abstract
BACKGROUND Multiple studies have revealed a direct correlation between obesity and the development of multiple comorbidities, including metabolic diseases, cardiovascular disorders, chronic inflammatory disease, and cancers. However, the molecular mechanism underlying the link between obesity and the progression of these diseases is not completely understood. Adipokines are factors that are secreted by adipocytes and play a key role in whole body homeostasis. Collaboratively, miRNAs are suggested to have key functions in the development of obesity and obesity-related disorders. Based on recently emerging evidence, obesity leads to the dysregulation of both adipokines and obesity-related miRNAs. In the present study, we described the correlations between obesity and its related diseases that are mediated by the mutual regulatory effects of adipokines and miRNAs. METHODS We reviewed current knowledge of the modulatory effects of adipokines on miRNAs activity and their relevant functions in pathological conditions and vice versa. RESULTS Our research reveals the ability of adipokines and miRNAs to control the expression and activity of the other class of molecules, and their effects on obesity-related diseases. CONCLUSIONS This study may help researchers develop a roadmap for future investigations and provide opportunities to develop new therapeutic and diagnostic methods for treating obesity-related diseases.
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Affiliation(s)
- Ahmad Ghasemi
- Non-communicable Disease Research Center, Neyshabur University of Medical Sciences, Neyshabur, Iran.
| | - Seyed Isaac Hashemy
- Surgical Oncology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.
| | - Mohsen Azimi-Nezhad
- Non-communicable Disease Research Center, Neyshabur University of Medical Sciences, Neyshabur, Iran; UMR INSERM U 1122, IGE-PCV, Interactions Gène-Environment en Physiopathologie Cardiovascular Université de Lorraine, France
| | - Alireza Dehghani
- Institute of Biochemistry and Molecular Biology, University of Bonn, Bonn, Germany
| | - Jafar Saeidi
- Department of Physiology, School of Basic Science, Neyshabur Branch, Islamic Azad University, Neyshabur, Iran
| | - Mahnaz Mohtashami
- Department of Biology, School of Basic Science, Neyshabur Branch, Islamic Azad University, Neyshabur, Iran
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Sun Q, Zeng Q, Chen Y, Zhang M, Wei L, Chen P. Long intergenic noncoding RNA p21 suppresses the apoptosis of hippocampus neurons in streptozotocin‐diabetic mice by sponging microRNA‐221 through upregulation of FOS. J Cell Physiol 2019; 234:21113-21125. [PMID: 31081202 DOI: 10.1002/jcp.28714] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2018] [Revised: 04/09/2019] [Accepted: 04/10/2019] [Indexed: 01/03/2023]
Affiliation(s)
- Qin Sun
- Department of Geriatrics Sichuan Academy of Medical Sciences and Sichuan Provincial People's Hospital Chengdu China
| | - Qing‐Cui Zeng
- Department of Geriatrics Sichuan Academy of Medical Sciences and Sichuan Provincial People's Hospital Chengdu China
| | - Yan‐Qiu Chen
- Department of Neurology People's Hospital of Chongqing Yubei District Chongqing China
| | - Min Zhang
- Department of Geriatrics Sichuan Academy of Medical Sciences and Sichuan Provincial People's Hospital Chengdu China
| | - Ling‐Ling Wei
- Center of Diabetes Mellitus Sichuan Academy of Medical Sciences and Sichuan Provincial People's Hospital Chengdu China
- School of Medicine, University of Electronic Science and Technology of China Chengdu China
| | - Ping Chen
- Department of Geriatrics Sichuan Academy of Medical Sciences and Sichuan Provincial People's Hospital Chengdu China
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23
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Meerson A, Najjar A, Saad E, Sbeit W, Barhoum M, Assy N. Sex Differences in Plasma MicroRNA Biomarkers of Early and Complicated Diabetes Mellitus in Israeli Arab and Jewish Patients. Noncoding RNA 2019; 5:E32. [PMID: 30959814 PMCID: PMC6631160 DOI: 10.3390/ncrna5020032] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2019] [Revised: 03/29/2019] [Accepted: 04/04/2019] [Indexed: 12/15/2022] Open
Abstract
MicroRNAs play functional roles in the etiology of type 2 diabetes mellitus (T2DM) and complications, and extracellular microRNAs have attracted interest as potential biomarkers of these conditions. We aimed to identify a set of plasma microRNAs, which could serve as biomarkers of T2DM and complications in a mixed Israeli Arab/Jewish patient sample. Subjects included 30 healthy volunteers, 29 early-stage T2DM patients, and 29 late-stage T2DM patients with renal and/or vascular complications. RNA was isolated from plasma, and the levels of 12 candidate microRNAs were measured by quantitative reverse transcription and polymerase chain reaction (qRT-PCR). MicroRNA levels were compared between the groups and correlated to clinical measurements, followed by stepwise regression analysis and discriminant analysis. Plasma miR-486-3p and miR-423 were respectively up- and down-regulated in T2DM patients compared to healthy controls. MiR-28-3p and miR-423 were up-regulated in patients with complicated T2DM compared to early T2DM, while miR-486-3p was down-regulated. Combined, four microRNAs (miR-146a-5p, miR-16-2-3p, miR-126-5p, and miR-30d) could distinguish early from complicated T2DM with 77% accuracy and 79% sensitivity. In male patients only, the same microRNAs, with the addition of miR-423, could distinguish early from complicated T2DM with 83.3% accuracy. Furthermore, plasma microRNA levels showed significant correlations with clinical measurements, and these differed between men and women. Additionally, miR-183-5p levels differed significantly between the ethnic groups. Our study identified a panel of specific plasma microRNAs which can serve as biomarkers of T2DM and its complications and emphasizes the importance of sex differences in their clinical application.
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Affiliation(s)
- Ari Meerson
- MIGAL Galilee Research Institute, Kiryat Shmona 1101602, Israel.
- Tel Hai Academic College, Upper Galilee 1220800, Israel.
| | - Azwar Najjar
- Department of Internal Medicine A, Galilee Medical Center, Nahariya, Israel.
| | - Elias Saad
- Department of Internal Medicine A, Galilee Medical Center, Nahariya, Israel.
| | - Wisam Sbeit
- Department of Gastroenterology, Galilee Medical Center, Nahariya, Israel.
| | | | - Nimer Assy
- Department of Internal Medicine A, Galilee Medical Center, Nahariya, Israel.
- The Azrieli Faculty of Medicine, Bar Ilan University, Safed, Israel.
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H19 potentiates let-7 family expression through reducing PTBP1 binding to their precursors in cholestasis. Cell Death Dis 2019; 10:168. [PMID: 30778047 PMCID: PMC6379488 DOI: 10.1038/s41419-019-1423-6] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2018] [Revised: 12/27/2018] [Accepted: 01/21/2019] [Indexed: 12/22/2022]
Abstract
Cholestasis induces the hepatic long non-coding RNA H19, which promotes the progression of cholestatic liver fibrosis. However, microRNAs that are dysregulated by H19 during cholestasis remain elusive. Using miRNA-sequencing analysis followed by qPCR validation, we identified marked upregulation of eight members of the let-7 family in cholestatic livers by bile duct ligation (BDL) and H19 overexpression. In particular, the expression of let-7a-1/7d/7f-1 was highly induced in H19-BDL livers but decreased in H19KO-BDL livers. Interestingly, H19 decreased the nuclear let-7 precursors as well as the primary transcripts of let-7a-1/7d/7f-1 levels in BDL mouse livers. Bioinformatics, RNA pull-down, and RNA immunoprecipitation (RIP) assays revealed that the crucial RNA-binding protein polypyrimidine tract-binding protein 1 (PTBP1), an H19 interaction partner, interacted with the precursors of let-7a-1 and let-7d and suppressed their maturation. Both PTBP1 and let-7 expression was differentially regulated by different bile acid species in hepatocyte and cholangiocyte cells. Further, H19 negatively regulated PTBP1's mRNA and protein levels but did not affect its subcellular distribution in BDL mouse livers. Moreover, we found that H19 restrained but PTBP1 facilitated the bioavailability of let-7 miRNAs to their targets. Taken together, this study revealed for the first time that H19 promoted let-7 expression by decreasing PTBP1's expression level and its binding to the let-7 precursors in cholestasis.
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Liu L, Yao L, Wang S, Chen Z, Han T, Ma P, Jiang L, Yuan C, Li J, Ke D, Li C, Yamahara J, Li Y, Wang J. 6‐Gingerol Improves Ectopic Lipid Accumulation, Mitochondrial Dysfunction, and Insulin Resistance in Skeletal Muscle of Ageing Rats: Dual Stimulation of the AMPK/PGC‐1α Signaling Pathway via Plasma Adiponectin and Muscular AdipoR1. Mol Nutr Food Res 2019; 63:e1800649. [DOI: 10.1002/mnfr.201800649] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2018] [Revised: 12/06/2018] [Indexed: 12/11/2022]
Affiliation(s)
- Li Liu
- Chongqing Key Laboratory of Traditional Chinese Medicine for Prevention and Cure of Metabolic DiseasesCollege of Traditional Chinese MedicineChongqing Medical University Chongqing China
- Faculty of Basic Medical SciencesChongqing Medical University Chongqing China
| | - Ling Yao
- Chongqing Key Laboratory of Traditional Chinese Medicine for Prevention and Cure of Metabolic DiseasesCollege of Traditional Chinese MedicineChongqing Medical University Chongqing China
| | - Shang Wang
- Chongqing Key Laboratory of Traditional Chinese Medicine for Prevention and Cure of Metabolic DiseasesCollege of Traditional Chinese MedicineChongqing Medical University Chongqing China
- Faculty of Basic Medical SciencesChongqing Medical University Chongqing China
| | - Zhiwei Chen
- Chongqing Key Laboratory of Traditional Chinese Medicine for Prevention and Cure of Metabolic DiseasesCollege of Traditional Chinese MedicineChongqing Medical University Chongqing China
| | - Tingli Han
- Department of ObstetricsThe First Affiliated Hospital of Chongqing Medical University Chongqing China
| | - Peng Ma
- Chongqing Key Laboratory of Traditional Chinese Medicine for Prevention and Cure of Metabolic DiseasesCollege of Traditional Chinese MedicineChongqing Medical University Chongqing China
- Faculty of Basic Medical SciencesChongqing Medical University Chongqing China
| | - Lirong Jiang
- Chongqing Key Laboratory of Traditional Chinese Medicine for Prevention and Cure of Metabolic DiseasesCollege of Traditional Chinese MedicineChongqing Medical University Chongqing China
- Faculty of Basic Medical SciencesChongqing Medical University Chongqing China
| | - Chunlin Yuan
- Chongqing Key Laboratory of Traditional Chinese Medicine for Prevention and Cure of Metabolic DiseasesCollege of Traditional Chinese MedicineChongqing Medical University Chongqing China
| | - Jinxiu Li
- Chongqing Key Laboratory of Traditional Chinese Medicine for Prevention and Cure of Metabolic DiseasesCollege of Traditional Chinese MedicineChongqing Medical University Chongqing China
| | - Dazhi Ke
- The Second Affiliated HospitalChongqing Medical University Chongqing China
| | - Chunli Li
- Institute of Life SciencesChongqing Medical University Chongqing China
| | | | - Yuhao Li
- Endocrinology and Metabolism GroupSydney Institute of Health Sciences/Sydney Institute of Traditional Chinese Medicine Sydney Australia
| | - Jianwei Wang
- Chongqing Key Laboratory of Traditional Chinese Medicine for Prevention and Cure of Metabolic DiseasesCollege of Traditional Chinese MedicineChongqing Medical University Chongqing China
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Rawcliffe DFR, Österman L, Nordin A, Holmberg M. PTBP1 acts as a dominant repressor of the aberrant tissue-specific splicing of ISCU in hereditary myopathy with lactic acidosis. Mol Genet Genomic Med 2018; 6:887-897. [PMID: 30209894 PMCID: PMC6305642 DOI: 10.1002/mgg3.413] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2018] [Revised: 03/23/2018] [Accepted: 04/17/2018] [Indexed: 01/23/2023] Open
Abstract
BACKGROUND Hereditary myopathy with lactic acidosis (HML) is an autosomal recessive disease caused by an intron mutation in the iron-sulfur cluster assembly (ISCU) gene. The mutation results in aberrant splicing, where part of the intron is retained in the final mRNA transcript, giving rise to a truncated nonfunctional ISCU protein. Using an ISCU mini-gene system, we have previously shown that PTBP1 can act as a repressor of the mis-splicing of ISCU, where overexpression of PTBP1 resulted in a decrease of the incorrect splicing. In this study, we wanted to, in more detail, analyze the role of PTBP1 in the regulation of endogenous ISCU mis-splicing. METHODS Overexpression and knockdown of PTBP1 was performed in myoblasts from two HML patients and a healthy control. Quantification of ISCU mis-splicing was done by qRTPCR. Biotinylated ISCU RNA, representing wildtype and mutant intron sequence, was used in a pull-down assay with nuclear extracts from myoblasts. Levels of PTBP1 in human cell lines and mice tissues were analyzed by qRTPCR and western blot. RESULTS PTBP1 overexpression in HML patient myoblasts resulted in a substantial decrease of ISCU mis-splicing while knockdown of PTBP1 resulted in a drastic increase. The effect could be observed in both patient and control myoblasts. We could also show that PTBP1 interacts with both the mutant and wild-type ISCU intron sequence, but with a higher affinity to the mutant sequence. Furthermore, low levels of PTBP1 among examined mouse tissues correlated with high levels of incorrect splicing of ISCU. CONCLUSION Our results show that PTBP1 acts as a dominant repressor of ISCU mis-splicing. We also show an inverse correlation between the levels of PTBP1 and ISCU mis-splicing, suggesting that the high level of mis-splicing in the skeletal muscle is primarily due to the low levels of PTBP1.
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Affiliation(s)
- Denise F. R. Rawcliffe
- Unit for Medical and Clinical GeneticsDepartment of Medical BiosciencesUmeå UniversityUmeåSweden
| | - Lennart Österman
- Unit for Medical and Clinical GeneticsDepartment of Medical BiosciencesUmeå UniversityUmeåSweden
| | - Angelica Nordin
- Unit for Medical and Clinical GeneticsDepartment of Medical BiosciencesUmeå UniversityUmeåSweden
| | - Monica Holmberg
- Unit for Medical and Clinical GeneticsDepartment of Medical BiosciencesUmeå UniversityUmeåSweden
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27
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The interplay between noncoding RNAs and insulin in diabetes. Cancer Lett 2018; 419:53-63. [DOI: 10.1016/j.canlet.2018.01.038] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2017] [Revised: 01/05/2018] [Accepted: 01/10/2018] [Indexed: 12/11/2022]
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Du C, Yan H, Liang J, Luo A, Wang L, Zhu J, Xiong H, Chen Y. Polyethyleneimine-capped silver nanoclusters for microRNA oligonucleotide delivery and bacterial inhibition. Int J Nanomedicine 2017; 12:8599-8613. [PMID: 29238194 PMCID: PMC5716333 DOI: 10.2147/ijn.s146968] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Efficient and safe nonviral gene delivery systems are a prerequisite for the clinical application of therapeutic genes. In this paper, polyethyleneimine-capped silver nanoclusters (PEI-AgNCs) were prepared for the purpose of microRNA (miRNA) delivery. The resultant PEI-AgNCs were characterized by a photoluminescence assay and transmission electron microscopy. A cytotoxicity assay showed that PEI-AgNCs exhibit relatively low cytotoxicity. Interestingly, PEI-AgNCs were confirmed to transfect miRNA mimics more effectively than PEI in HepG2 and 293A cells. In this regard, hsa-miR-21 or hsa-miR-221 mimics (miR-21/221m) were transported into HepG2 cells by using PEI-AgNCs. The miR-21/221 expression was determined post-transfection by quantitative real-time polymerase chain reaction. Compared with the negative control, PEI-AgNCs/miR-21/221m groups exhibited higher miR-21/221 levels. In addition, AgNCs endow PEI with stronger antibacterial activity, and this advantage provided PEI-AgNCs the potential to prevent bacterial contamination during the transfection process. Furthermore, we showed that PEI-AgNCs are viable nanomaterials for plain imaging of the cells by laser scanning confocal microscopy, indicating great potential as an ideal fluorescent probe to track the transfection behavior. These results demonstrated that PEI-AgNCs are promising and novel nonviral vectors for gene delivery.
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Affiliation(s)
- Chunyuan Du
- Hubei Province Key Laboratory of Biotechnology of Chinese Traditional Medicine, Hubei Collaborative Innovation Center for Green Transformation of Bio-resources, Hubei University, Wuhan
| | - Haibo Yan
- Department of Internal Medicine, Shandong Medical College, Linyi
| | - Jichao Liang
- Hubei Province Key Laboratory of Biotechnology of Chinese Traditional Medicine, Hubei Collaborative Innovation Center for Green Transformation of Bio-resources, Hubei University, Wuhan
| | - Ailing Luo
- Hubei Province Key Laboratory of Biotechnology of Chinese Traditional Medicine, Hubei Collaborative Innovation Center for Green Transformation of Bio-resources, Hubei University, Wuhan
| | - Lingqian Wang
- Hubei Province Key Laboratory of Biotechnology of Chinese Traditional Medicine, Hubei Collaborative Innovation Center for Green Transformation of Bio-resources, Hubei University, Wuhan
| | - Jing Zhu
- Hubei Province Key Laboratory of Biotechnology of Chinese Traditional Medicine, Hubei Collaborative Innovation Center for Green Transformation of Bio-resources, Hubei University, Wuhan
| | - Huayu Xiong
- Ministry-of-Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, Hubei University, Wuhan, China
| | - Yong Chen
- Hubei Province Key Laboratory of Biotechnology of Chinese Traditional Medicine, Hubei Collaborative Innovation Center for Green Transformation of Bio-resources, Hubei University, Wuhan
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Mysore R, Ortega FJ, Latorre J, Ahonen M, Savolainen-Peltonen H, Fischer-Posovszky P, Wabitsch M, Olkkonen VM, Fernández-Real JM, Haridas PAN. MicroRNA-221-3p Regulates Angiopoietin-Like 8 (ANGPTL8) Expression in Adipocytes. J Clin Endocrinol Metab 2017; 102:4001-4012. [PMID: 28938482 DOI: 10.1210/jc.2017-00453] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/17/2017] [Accepted: 08/25/2017] [Indexed: 02/13/2023]
Abstract
CONTEXT Angiopoietin-like 8 (ANGPTL8) has been identified as a key regulator of lipid metabolism. DESIGN We addressed the correlation between ANGPTL8 messenger RNA (mRNA) with hallmark insulin-regulated and lipogenic genes in human adipose tissue (AT). The regulation of ANGPTL8 expression in adipocytes was studied after inflammatory challenge, and the role of microRNA (miRNA)-221-3p therein was investigated. RESULTS ANGPTL8 gene expression in subcutaneous AT (SAT) and visceral AT (VAT) was highly correlated with SLC2A4/GLUT4, ADIPOQ, fatty acyl synthase, and diacylglycerol O-acyltransferase 1. ANGPTL8 mRNA in human adipocytes was suppressed by the inflammatory impact of conditioned medium of lipopolysaccharide-stimulated macrophages, which markedly induced miR-221-3p. MiR-221-3p was shown to target the ANGPTL8 mRNA, and to reduce adipocyte ANGPTL8 protein expression. Analysis of SAT biopsies from 69 subjects ranging from lean to morbidly obese and of VAT of 19 female subjects biopsied during gynecologic surgery demonstrated a trend of negative correlation between ANGPTL8 and miR-221-3p. Significant negative correlation of ANGPTL8 and miR-221-3p was identified in presurgery SAT samples from 22 morbidly obese subjects undergoing bariatric surgery, but vanished after ∼2-year surgery-induced weight loss, which also resulted in a marked reduction of miR-221-3p. ANGPTL8 correlated negatively with the AT inflammatory gene phospholipase A2 G7, whereas miR-221-3p showed a significant positive correlation with this marker. Of note, no correlation was found between AT ANGPTL8 mRNA expression and plasma ANGPTL8. CONCLUSIONS The inflammation-induced miR-221-3p regulates ANGPTL8 expression in adipocytes. This miRNA impact may become especially prominent under pathologic conditions such as morbid obesity, putatively contributing to the impaired AT lipid metabolism in metabolic disease.
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Affiliation(s)
- Raghavendra Mysore
- Minerva Foundation Institute for Medical Research, Biomedicum 2U, FI-00290 Helsinki, Finland
| | - Francisco J Ortega
- Department of Diabetes, Endocrinology, and Nutrition, Institut d'Investigació Biomèdica de Girona (IdIBGi), ES-17190 Girona, Spain
- CIBER de la Fisiopatología de la Obesidad y la Nutrición (CB06/03) and Instituto de Salud Carlos III, ES-28029 Madrid, Spain
| | - Jèssica Latorre
- Department of Diabetes, Endocrinology, and Nutrition, Institut d'Investigació Biomèdica de Girona (IdIBGi), ES-17190 Girona, Spain
| | - Maria Ahonen
- Minerva Foundation Institute for Medical Research, Biomedicum 2U, FI-00290 Helsinki, Finland
| | - Hanna Savolainen-Peltonen
- University of Helsinki and Helsinki University Hospital, Obstetrics and Gynecology, FI-00029 HUS, Helsinki, Finland
- Folkhälsan Research Center, Biomedicum 1, FI-00290 Helsinki, Finland
| | - Pamela Fischer-Posovszky
- Division of Pediatric Endocrinology and Diabetes, Department of Pediatrics and Adolescent Medicine, University Medical Center Ulm, D-89075 Ulm, Germany
| | - Martin Wabitsch
- Division of Pediatric Endocrinology and Diabetes, Department of Pediatrics and Adolescent Medicine, University Medical Center Ulm, D-89075 Ulm, Germany
| | - Vesa M Olkkonen
- Minerva Foundation Institute for Medical Research, Biomedicum 2U, FI-00290 Helsinki, Finland
- Department of Anatomy, Faculty of Medicine, FI-00014 University of Helsinki, Finland
| | - José M Fernández-Real
- Department of Diabetes, Endocrinology, and Nutrition, Institut d'Investigació Biomèdica de Girona (IdIBGi), ES-17190 Girona, Spain
- CIBER de la Fisiopatología de la Obesidad y la Nutrición (CB06/03) and Instituto de Salud Carlos III, ES-28029 Madrid, Spain
| | - P A Nidhina Haridas
- Minerva Foundation Institute for Medical Research, Biomedicum 2U, FI-00290 Helsinki, Finland
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30
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Zhu M, Liu Z, Gao M, Zhang Y, Li Y, Ling S, Zhang P, Zhao C, Jiang L, Liu Y, Li Q, Li D, Hu S, Li Y. The effect of Bu Zhong Yi Qi decoction on simulated weightlessness‑induced muscle atrophy and its mechanisms. Mol Med Rep 2017; 16:5165-5174. [PMID: 28849026 PMCID: PMC5647051 DOI: 10.3892/mmr.2017.7287] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2016] [Accepted: 05/11/2017] [Indexed: 12/17/2022] Open
Abstract
Microgravity has been previously demonstrated to induce skeletal muscle atrophy, loss of muscle force and disorders in myogenesis and metabolism. Current pharmacological strategies exhibit poor efficacy. Bu Zhong Yi Qi decoction (BZ) is a well-known traditional Chinese medicine decoction used for myasthenia gravis. In the present study, its effect on unloading induced muscle atrophy was investigated. The mousetail suspension model was used to simulate weightlessness induced muscle atrophy. The results indicated that BZ could significantly protect muscles from simulated weightlessness-induced atrophy. To elucidate the underlying mechanisms, drugCIPHER-CS methods were introduced to predict its potential targets, significantly enriched pathways and biological processes. The results demonstrated that the calcium signaling pathway, citrate cycle, biosynthetic and lipid metabolic process are affected by BZ. Among the targets, nuclear receptor corepressor 1 (NCoR1) is one of the most important proteins involved in myogenesis and metabolism. The results indicated that BZ significantly downregulated NCoR 1 expression, and further induced muscle differentiation and metabolism by regulating NCoR1-associated gene expression in vivo and in vitro. In summary, the present study indicated that may be effective in combating weightlessness-induced muscle atrophy. Combined with bioinformatics, the underlying mechanism for this decoction was investigated, which provided an improved understanding of this decoction.
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Affiliation(s)
- Mu Zhu
- Department of Chinese Materia Medica, School of Preclinical Medicine, Beijing University of Chinese Medicine, Beijing 100019, P.R. China
| | - Zhongyang Liu
- State Key Laboratory of Proteomics, Beijing Proteome Research Center, Institute of Radiation Medicine, Beijing 102206, P.R. China
| | - Mingze Gao
- Department of Chinese Materia Medica, School of Preclinical Medicine, Beijing University of Chinese Medicine, Beijing 100019, P.R. China
| | - Yan Zhang
- Department of Chinese Materia Medica, School of Preclinical Medicine, Beijing University of Chinese Medicine, Beijing 100019, P.R. China
| | - Yuheng Li
- State Key Laboratory of Space Medicine Fundamentals and Applications, China Astronaut Research and Training Center, Beijing 100094, P.R. China
| | - Shukuan Ling
- State Key Laboratory of Space Medicine Fundamentals and Applications, China Astronaut Research and Training Center, Beijing 100094, P.R. China
| | - Pengfei Zhang
- State Key Laboratory of Space Medicine Fundamentals and Applications, China Astronaut Research and Training Center, Beijing 100094, P.R. China
| | - Chenyang Zhao
- State Key Laboratory of Space Medicine Fundamentals and Applications, China Astronaut Research and Training Center, Beijing 100094, P.R. China
| | - Lijun Jiang
- State Key Laboratory of Space Medicine Fundamentals and Applications, China Astronaut Research and Training Center, Beijing 100094, P.R. China
| | - Yu Liu
- State Key Laboratory of Space Medicine Fundamentals and Applications, China Astronaut Research and Training Center, Beijing 100094, P.R. China
| | - Qi Li
- State Key Laboratory of Space Medicine Fundamentals and Applications, China Astronaut Research and Training Center, Beijing 100094, P.R. China
| | - Dong Li
- State Key Laboratory of Proteomics, Beijing Proteome Research Center, Institute of Radiation Medicine, Beijing 102206, P.R. China
| | - Sumin Hu
- Department of Chinese Materia Medica, School of Preclinical Medicine, Beijing University of Chinese Medicine, Beijing 100019, P.R. China
| | - Yingxian Li
- State Key Laboratory of Space Medicine Fundamentals and Applications, China Astronaut Research and Training Center, Beijing 100094, P.R. China
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Nunez Lopez YO, Coen PM, Goodpaster BH, Seyhan AA. Gastric bypass surgery with exercise alters plasma microRNAs that predict improvements in cardiometabolic risk. Int J Obes (Lond) 2017; 41:1121-1130. [PMID: 28344345 DOI: 10.1038/ijo.2017.84] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/13/2016] [Revised: 02/12/2017] [Accepted: 03/14/2017] [Indexed: 12/22/2022]
Abstract
BACKGROUND/OBJECTIVES Roux-en-Y gastric bypass (RYGB) surgery improves insulin sensitivity (SI) and β-cell function in obese non-diabetic subjects. Exercise also improves SI and may be an effective adjunct therapy to RYGB surgery. However, the mechanisms by which exercise or weight loss improve peripheral SI after RYGB surgery are unclear. We hypothesized that microRNAs (miRNAs) mediate at least some of the regulatory processes driving such mechanisms. Consequently, this work aimed at profiling plasma miRNAs in participants of the Physical Activity Following Surgery Induced Weight Loss study (clinicaltrials.gov identifier: NCT00692367), to assess whether miRNA levels track with improvements in SI and cardiometabolic risk factors. SUBJECTS/METHODS Ninety-four miRNAs implicated in metabolism were profiled in plasma samples from 22 severely obese subjects who were recruited 1-3 months after RYGB surgery and followed for 6 months of RYGB surgery-induced weight loss, with (exercise program (EX), N=11) or without (CON, N=11) an exercise training intervention. The subjects were selected, considering a priori sample size calculations, among the participants in the parent study. Mixed-effect modeling for repeated measures and partial correlation analysis was implemented in the R environment for statistical analysis. RESULTS Mirroring results in the parent trial, both groups experienced significant weight loss and improvements in cardiometabolic risk. In the CON group, weight loss significantly altered the pattern of circulating miR-7, miR-15a, miR-34a, miR-106a, miR-122 and miR-221. In the EX group, a distinct miRNA signature was altered: miR-15a, miR-34a, miR-122, miR-135b, miR-144, miR-149 and miR-206. Several miRNAs were significantly associated with improvements in acute insulin response, SI, and other cardiometabolic risk factors. CONCLUSIONS These findings present novel insights into the RYGB surgery-induced molecular changes and the effects of mild exercise to facilitate and/or maintain the benefits of a 'comprehensive' weight-loss intervention with concomitant improvements in cardiometabolic functions. Notably, we show a predictive value for miR-7, miR-15a, miR-106b and miR-135b.
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Affiliation(s)
- Y O Nunez Lopez
- Translational Research Institute for Metabolism and Diabetes, Florida Hospital, Orlando, FL, USA
| | - P M Coen
- Translational Research Institute for Metabolism and Diabetes, Florida Hospital, Orlando, FL, USA.,Sanford Burnham Prebys Medical Discovery Institute, Lake Nona, FL, USA
| | - B H Goodpaster
- Translational Research Institute for Metabolism and Diabetes, Florida Hospital, Orlando, FL, USA.,Sanford Burnham Prebys Medical Discovery Institute, Lake Nona, FL, USA
| | - A A Seyhan
- Translational Research Institute for Metabolism and Diabetes, Florida Hospital, Orlando, FL, USA.,Sanford Burnham Prebys Medical Discovery Institute, Lake Nona, FL, USA.,Massachusetts Institute of Technology, Chemical Engineering Department Cambridge, MA, USA
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Jin Z, Liang F, Yang J, Mei W. hnRNP I regulates neonatal immune adaptation and prevents colitis and colorectal cancer. PLoS Genet 2017; 13:e1006672. [PMID: 28296893 PMCID: PMC5371387 DOI: 10.1371/journal.pgen.1006672] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2016] [Revised: 03/29/2017] [Accepted: 03/06/2017] [Indexed: 12/15/2022] Open
Abstract
The intestinal epithelium plays a critical role in host-microbe homeostasis by sensing gut microbes and subsequently initiating proper immune responses. During the neonatal stage, the intestinal epithelium is under immune repression, allowing the transition for newborns from a relatively sterile intra-uterine environment to one that is rich in foreign antigens. The mechanism underlying such immune repression remains largely unclear, but involves downregulation of IRAK1 (interleukin-1 receptor-associated kinase), an essential component of toll-like receptor-mediated NF-κB signaling. We report here that heterogeneous nuclear ribonucleoprotein I (hnRNPI), an RNA binding protein, is essential for regulating neonatal immune adaptation. We generated a mouse model in which hnRNPI is ablated specifically in the intestinal epithelial cells, and characterized intestinal defects in the knockout mice. We found that loss of hnRNPI function in mouse intestinal epithelial cells results in early onset of spontaneous colitis followed by development of invasive colorectal cancer. Strikingly, the epithelium-specific hnRNPI knockout neonates contain aberrantly high IRAK1 protein levels in the colons and fail to develop immune tolerance to environmental microbes. Our results demonstrate that hnRNPI plays a critical role in establishing neonatal immune adaptation and preventing colitis and colorectal cancer. Precisely controlled host-microbe interactions in the gastrointestinal tract are crucial for human overall health and well-being. Dysregulated host responses to gut microbiota are the major cause of autoimmune diseases, inflammatory disorders and cancers. The intestinal epithelium lines the gastrointestinal tract and plays a critical role in sensing gut microbes and subsequently developing a balance of immune tolerance and active immune responses. During the neonatal stage, the immune system in the gastrointestinal tract must be temporally suppressed to accommodate the large number of newly arrived microbes. This process is known as neonatal immune adaptation, and is critical for the establishment of proper host- microbe interactions. We studied the function of hnRNPI in the intestinal epithelium by genetically ablating it in the intestinal epithelial cells of mouse. We found that loss of hnRNPI in intestinal epithelial cells disrupts neonatal immune adaptation, resulting in spontaneous colitis and early onset of invasive colorectal cancer. We show that hnRNPI is required for the neonatal immune suppression through decreasing the protein level of IRAK1, an essential component of toll-like receptor-mediated NF-κB signaling. Our studies demonstrate a critical role of hnRNPI in establishing neonatal immune adaptation and preventing colitis and colorectal cancer.
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Affiliation(s)
- Zhigang Jin
- Department of comparative Biosciences, College of veterinary medicine, University of Illinois at Urbana-Champaign, Urbana, Illinois, United States of America
| | - Feng Liang
- Department of statistics, University of Illinois at Urbana-Champaign, Champaign, Illinois, United States of America
| | - Jing Yang
- Department of comparative Biosciences, College of veterinary medicine, University of Illinois at Urbana-Champaign, Urbana, Illinois, United States of America
| | - Wenyan Mei
- Department of comparative Biosciences, College of veterinary medicine, University of Illinois at Urbana-Champaign, Urbana, Illinois, United States of America
- * E-mail:
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33
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Zhang L, Miller D, Yang Q, Wu B. MicroRNA Regulatory Networks as Biomarkers in Obesity: The Emerging Role. Methods Mol Biol 2017; 1617:241-260. [PMID: 28540690 DOI: 10.1007/978-1-4939-7046-9_18] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Even though it is a pandemic health problem worldwide, the pathogenesis of obesity is poorly understood. Recently, emerging studies verified that microRNAs (miRNAs) are involved in complicated metabolic processes including adipocyte differentiation, fat cell formation (adipogenesis), obesity-related insulin resistance and inflammation. Many regulatory networks have been identified in murine adipose tissue, but those in human adipose tissue are not as well known. In addition, miRNAs have been detected in circulation, and thus may be usable as diagnostic indicators. MiRNAs may play an important part in regulating metabolic functions in adipose tissues and, by extension, obesity and its associated disorders. Consequently, they may be potential candidates for therapeutic targets and biomarkers.
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Affiliation(s)
- Lihua Zhang
- Department of Geriatrics, First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, 650031, China
| | - Daniel Miller
- School of Computing, University of South Alabama, Mobile, AL, 36688, USA
| | - Qiuping Yang
- Department of Geriatrics, First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, 650031, China
| | - Bin Wu
- Department of Endocrinology, First Affiliated Hospital, Kunming Medical University, 295 Xichang Rd., Wuhua Qu, Kunming, Yunnan, 650031, China.
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La Porta J, Matus-Nicodemos R, Valentín-Acevedo A, Covey LR. The RNA-Binding Protein, Polypyrimidine Tract-Binding Protein 1 (PTBP1) Is a Key Regulator of CD4 T Cell Activation. PLoS One 2016; 11:e0158708. [PMID: 27513449 PMCID: PMC4981342 DOI: 10.1371/journal.pone.0158708] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2016] [Accepted: 06/21/2016] [Indexed: 02/07/2023] Open
Abstract
We have previously shown that the RNA binding protein, polypyrimidine tract-binding protein (PTBP1) plays a critical role in regulating the expression of CD40L in activated CD4 T cells. This is achieved mechanistically through message stabilization at late times of activation as well as by altered distribution of CD40L mRNA within distinct cellular compartments. PTBP1 has been implicated in many different processes, however whether PTBP1 plays a broader role in CD4 T cell activation is not known. To examine this question, experiments were designed to introduce shRNA into primary human CD4 T cells to achieve decreased, but not complete ablation of PTBP1 expression. Analyses of shPTB-expressing CD4 T cells revealed multiple processes including cell proliferation, activation-induced cell death and expression of activation markers and cytokines that were regulated in part by PTBP1 expression. Although there was an overall decrease in the steady-state level of several activation genes, only IL-2 and CD40L appeared to be regulated by PTBP1 at the level of RNA decay suggesting that PTBP1 is critical at different regulatory steps of expression that is gene-specific. Importantly, even though the IL-2 protein levels were reduced in cells with lowered PTBP1, the steady-state level of IL-2 mRNA was significantly higher in these cells suggesting a block at the translational level. Evaluation of T cell activation in shPTB-expressing T cells revealed that PTBP1 was linked primarily to the activation of the PLCγ1/ERK1/2 and the NF-κB pathways. Overall, our results reveal the importance of this critical RNA binding protein in multiple steps of T cell activation.
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Affiliation(s)
- James La Porta
- Department of Cell Biology and Neuroscience, Rutgers University, New Brunswick, New Jersey, United States of America
| | - Rodrigo Matus-Nicodemos
- Department of Cell Biology and Neuroscience, Rutgers University, New Brunswick, New Jersey, United States of America
| | - Aníbal Valentín-Acevedo
- Department of Cell Biology and Neuroscience, Rutgers University, New Brunswick, New Jersey, United States of America
| | - Lori R. Covey
- Department of Cell Biology and Neuroscience, Rutgers University, New Brunswick, New Jersey, United States of America
- * E-mail:
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35
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Marnef A, Jády BE, Kiss T. Human polypyrimidine tract-binding protein interacts with mitochondrial tRNA(Thr) in the cytosol. Nucleic Acids Res 2015; 44:1342-53. [PMID: 26657638 PMCID: PMC4756820 DOI: 10.1093/nar/gkv1355] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2015] [Accepted: 11/22/2015] [Indexed: 11/12/2022] Open
Abstract
Human polypyrimidine tract-binding protein PTB is a multifunctional RNA-binding protein with four RNA recognition motifs (RRM1 to RRM4). PTB is a nucleocytoplasmic shuttle protein that functions as a key regulator of alternative pre-mRNA splicing in the nucleoplasm and promotes internal ribosome entry site-mediated translation initiation of viral and cellular mRNAs in the cytoplasm. Here, we demonstrate that PTB and its paralogs, nPTB and ROD1, specifically interact with mitochondrial (mt) tRNA(Thr) both in human and mouse cells. In vivo and in vitro RNA-binding experiments demonstrate that PTB forms a direct interaction with the T-loop and the D-stem-loop of mt tRNA(Thr) using its N-terminal RRM1 and RRM2 motifs. RNA sequencing and cell fractionation experiments show that PTB associates with correctly processed and internally modified, mature mt tRNA(Thr) in the cytoplasm outside of mitochondria. Consistent with this, PTB activity is not required for mt tRNA(Thr) biogenesis or for correct mitochondrial protein synthesis. PTB association with mt tRNA(Thr) is largely increased upon induction of apoptosis, arguing for a potential role of the mt tRNA(Thr)/PTB complex in apoptosis. Our results lend strong support to the recently emerging conception that human mt tRNAs can participate in novel cytoplasmic processes independent from mitochondrial protein synthesis.
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Affiliation(s)
- Aline Marnef
- Laboratoire de Biologie Moléculaire Eucaryote du CNRS, UMR5099, CNRS, Université Paul Sabatier, 118 route de Narbonne, 31062 Toulouse Cedex 9, France
| | - Beáta E Jády
- Laboratoire de Biologie Moléculaire Eucaryote du CNRS, UMR5099, CNRS, Université Paul Sabatier, 118 route de Narbonne, 31062 Toulouse Cedex 9, France
| | - Tamás Kiss
- Laboratoire de Biologie Moléculaire Eucaryote du CNRS, UMR5099, CNRS, Université Paul Sabatier, 118 route de Narbonne, 31062 Toulouse Cedex 9, France Biological Research Centre, Hungarian Academy of Sciences, Szeged, Hungary
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36
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Abente EJ, Subramanian M, Ramachandran V, Najafi-Shoushtari SH. MicroRNAs in obesity-associated disorders. Arch Biochem Biophys 2015; 589:108-19. [PMID: 26416722 DOI: 10.1016/j.abb.2015.09.018] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2015] [Revised: 09/17/2015] [Accepted: 09/18/2015] [Indexed: 02/08/2023]
Abstract
The emergence of a worldwide obesity epidemic has dramatically increased the prevalence of insulin resistance and metabolic syndrome, predisposing individuals to a greater risk for the development of non-alcoholic fatty liver disease, type II diabetes and atherosclerotic cardiovascular diseases. Current available pharmacological interventions combined with diet and exercise-based managements are still poorly effective for weight management, likely in part due to an incomplete understanding of regulatory mechanisms and pathways contributing to the systemic metabolic abnormalities under disturbed energy homeostasis. MicroRNAs, small non-coding RNAs that regulate posttranscriptional gene expression, have been increasingly described to influence shifts in metabolic pathways under various obesity-related disease settings. Here we review recent discoveries of the mechanistic role that microRNAs play in regulating metabolic functions in liver and adipose tissues involved in obesity associated disorders, and briefly discusses the potential candidates that are being pursued as viable therapeutic targets.
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Affiliation(s)
- Eugenio J Abente
- Department of Cell and Developmental Biology, Weill Cornell Medical College, Cornell University, New York 10021, NY, USA; Weill Cornell Medical College-Qatar, Qatar Foundation, Education City, P.O. Box 24144, Doha, Qatar
| | - Murugan Subramanian
- Department of Cell and Developmental Biology, Weill Cornell Medical College, Cornell University, New York 10021, NY, USA; Weill Cornell Medical College-Qatar, Qatar Foundation, Education City, P.O. Box 24144, Doha, Qatar
| | - Vimal Ramachandran
- Department of Cell and Developmental Biology, Weill Cornell Medical College, Cornell University, New York 10021, NY, USA; Weill Cornell Medical College-Qatar, Qatar Foundation, Education City, P.O. Box 24144, Doha, Qatar
| | - S Hani Najafi-Shoushtari
- Department of Cell and Developmental Biology, Weill Cornell Medical College, Cornell University, New York 10021, NY, USA; Weill Cornell Medical College-Qatar, Qatar Foundation, Education City, P.O. Box 24144, Doha, Qatar.
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37
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MicroRNAs as regulators of metabolic disease: pathophysiologic significance and emerging role as biomarkers and therapeutics. Int J Obes (Lond) 2015; 40:88-101. [PMID: 26311337 PMCID: PMC4722234 DOI: 10.1038/ijo.2015.170] [Citation(s) in RCA: 233] [Impact Index Per Article: 25.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/08/2015] [Revised: 07/01/2015] [Accepted: 07/22/2015] [Indexed: 12/13/2022]
Abstract
The prevalence of overweight and obesity in developed and developing countries has greatly increased the risk of insulin resistance and type 2 diabetes mellitus. It is evident from human and animal studies that obesity alters microRNA (miRNA) expression in metabolically important organs, and that miRNAs are involved in changes to normal physiology, acting as mediators of disease. miRNAs regulate multiple pathways including insulin signaling, immune-mediated inflammation, adipokine expression, adipogenesis, lipid metabolism, and food intake regulation. Thus, miRNA-based therapeutics represent an innovative and attractive treatment modality, with non-human primate studies showing great promise. In addition, miRNA measures in plasma or bodily fluids may be used as disease biomarkers and predictors of metabolic disease in humans. This review analyzes the role of miRNAs in obesity and insulin resistance, focusing on the miR-17/92, miR-143-145, miR-130, let-7, miR-221/222, miR-200, miR-223, miR-29 and miR-375 families, as well as miRNA changes by relevant tissue (adipose, liver and skeletal muscle). Further, the current and future applications of miRNA-based therapeutics and diagnostics in metabolic disease are discussed.
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38
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Chen CF, Huang J, Li H, Zhang C, Huang X, Tong G, Xu YZ. MicroRNA-221 regulates endothelial nitric oxide production and inflammatory response by targeting adiponectin receptor 1. Gene 2015; 565:246-51. [DOI: 10.1016/j.gene.2015.04.014] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2014] [Revised: 03/13/2015] [Accepted: 04/07/2015] [Indexed: 12/30/2022]
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Khan MP, Singh AK, Joharapurkar AA, Yadav M, Shree S, Kumar H, Gurjar A, Mishra JS, Tiwari MC, Nagar GK, Kumar S, Ramachandran R, Sharan A, Jain MR, Trivedi AK, Maurya R, Godbole MM, Gayen JR, Sanyal S, Chattopadhyay N. Pathophysiological Mechanism of Bone Loss in Type 2 Diabetes Involves Inverse Regulation of Osteoblast Function by PGC-1α and Skeletal Muscle Atrogenes: AdipoR1 as a Potential Target for Reversing Diabetes-Induced Osteopenia. Diabetes 2015; 64:2609-23. [PMID: 25633418 DOI: 10.2337/db14-1611] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/20/2014] [Accepted: 01/26/2015] [Indexed: 11/13/2022]
Abstract
Type 2 diabetes is associated with increased fracture risk and delayed fracture healing; the underlying mechanism, however, remains poorly understood. We systematically investigated skeletal pathology in leptin receptor-deficient diabetic mice on a C57BLKS background (db). Compared with wild type (wt), db mice displayed reduced peak bone mass and age-related trabecular and cortical bone loss. Poor skeletal outcome in db mice contributed high-glucose- and nonesterified fatty acid-induced osteoblast apoptosis that was associated with peroxisome proliferator-activated receptor γ coactivator 1-α (PGC-1α) downregulation and upregulation of skeletal muscle atrogenes in osteoblasts. Osteoblast depletion of the atrogene muscle ring finger protein-1 (MuRF1) protected against gluco- and lipotoxicity-induced apoptosis. Osteoblast-specific PGC-1α upregulation by 6-C-β-d-glucopyranosyl-(2S,3S)-(+)-5,7,3',4'-tetrahydroxydihydroflavonol (GTDF), an adiponectin receptor 1 (AdipoR1) agonist, as well as metformin in db mice that lacked AdipoR1 expression in muscle but not bone restored osteopenia to wt levels without improving diabetes. Both GTDF and metformin protected against gluco- and lipotoxicity-induced osteoblast apoptosis, and depletion of PGC-1α abolished this protection. Although AdipoR1 but not AdipoR2 depletion abolished protection by GTDF, metformin action was not blocked by AdipoR depletion. We conclude that PGC-1α upregulation in osteoblasts could reverse type 2 diabetes-associated deterioration in skeletal health.
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Affiliation(s)
- Mohd Parvez Khan
- Division of Endocrinology, CSIR-Central Drug Research Institute, Lucknow, Uttar Pradesh, India
| | - Abhishek Kumar Singh
- Division of Biochemistry, CSIR-Central Drug Research Institute, Lucknow, Uttar Pradesh, India
| | | | - Manisha Yadav
- Division of Biochemistry, CSIR-Central Drug Research Institute, Lucknow, Uttar Pradesh, India
| | - Sonal Shree
- Division of Molecular and Structural Biology, CSIR-Central Drug Research Institute, Lucknow, Uttar Pradesh, India
| | - Harish Kumar
- Division of Biochemistry, CSIR-Central Drug Research Institute, Lucknow, Uttar Pradesh, India
| | - Anagha Gurjar
- Division of Biochemistry, CSIR-Central Drug Research Institute, Lucknow, Uttar Pradesh, India
| | - Jay Sharan Mishra
- Division of Biochemistry, CSIR-Central Drug Research Institute, Lucknow, Uttar Pradesh, India
| | - Mahesh Chandra Tiwari
- Division of Endocrinology, CSIR-Central Drug Research Institute, Lucknow, Uttar Pradesh, India
| | - Geet Kumar Nagar
- Division of Endocrinology, CSIR-Central Drug Research Institute, Lucknow, Uttar Pradesh, India
| | - Sudhir Kumar
- Division of Medicinal and Process Chemistry, CSIR-Central Drug Research Institute, Lucknow, Uttar Pradesh, India
| | - Ravishankar Ramachandran
- Division of Molecular and Structural Biology, CSIR-Central Drug Research Institute, Lucknow, Uttar Pradesh, India
| | - Anupam Sharan
- Vinayak Cosmetic Surgery & Laser Centre, Lucknow, Uttar Pradesh, India
| | | | - Arun Kumar Trivedi
- Division of Biochemistry, CSIR-Central Drug Research Institute, Lucknow, Uttar Pradesh, India
| | - Rakesh Maurya
- Division of Medicinal and Process Chemistry, CSIR-Central Drug Research Institute, Lucknow, Uttar Pradesh, India
| | - Madan Madhav Godbole
- Department of Endocrinology, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, India
| | - Jiaur Rahaman Gayen
- Division of Pharmacokinetics and Metabolism, CSIR-Central Drug Research Institute, Lucknow, UP, India
| | - Sabyasachi Sanyal
- Division of Biochemistry, CSIR-Central Drug Research Institute, Lucknow, Uttar Pradesh, India
| | - Naibedya Chattopadhyay
- Division of Endocrinology, CSIR-Central Drug Research Institute, Lucknow, Uttar Pradesh, India
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Chistiakov DA, Sobenin IA, Orekhov AN, Bobryshev YV. Human miR-221/222 in Physiological and Atherosclerotic Vascular Remodeling. BIOMED RESEARCH INTERNATIONAL 2015; 2015:354517. [PMID: 26221589 PMCID: PMC4499635 DOI: 10.1155/2015/354517] [Citation(s) in RCA: 125] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/06/2014] [Accepted: 10/29/2014] [Indexed: 12/11/2022]
Abstract
A cluster of miR-221/222 is a key player in vascular biology through exhibiting its effects on vascular smooth muscle cells (VSMCs) and endothelial cells (ECs). These miRNAs contribute to vascular remodeling, an adaptive process involving phenotypic and behavioral changes in vascular cells in response to vascular injury. In proliferative vascular diseases such as atherosclerosis, pathological vascular remodeling plays a prominent role. The miR-221/222 cluster controls development and differentiation of ECs but inhibits their proangiogenic activation, proliferation, and migration. miR-221/222 are primarily implicated in maintaining endothelial integrity and supporting quiescent EC phenotype. Vascular expression of miR-221/222 is upregulated in initial atherogenic stages causing inhibition of angiogenic recruitment of ECs and increasing endothelial dysfunction and EC apoptosis. In contrast, these miRNAs stimulate VSMCs and switching from the VSMC "contractile" phenotype to the "synthetic" phenotype associated with induction of proliferation and motility. In atherosclerotic vessels, miR-221/222 drive neointima formation. Both miRNAs contribute to atherogenic calcification of VSMCs. In advanced plaques, chronic inflammation downregulates miR-221/222 expression in ECs that in turn could activate intralesion neoangiogenesis. In addition, both miRNAs could contribute to cardiovascular pathology through their effects on fat and glucose metabolism in nonvascular tissues such as adipose tissue, liver, and skeletal muscles.
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Affiliation(s)
- Dmitry A. Chistiakov
- Department of Medical Nanobiotechnology, Pirogov Russian State Medical University, Moscow 117997, Russia
- The Mount Sinai Community Clinical Oncology Program, Mount Sinai Comprehensive Cancer Center, Mount Sinai Medical Center, Miami Beach, FL 33140, USA
| | - Igor A. Sobenin
- Laboratory of Angiopathology, Institute of General Pathology and Pathophysiology, Russian Academy of Sciences, Moscow 125315, Russia
- Laboratory of Medical Genetics, Russian Cardiology Research and Production Complex, Moscow 121552, Russia
| | - Alexander N. Orekhov
- Laboratory of Angiopathology, Institute of General Pathology and Pathophysiology, Russian Academy of Sciences, Moscow 125315, Russia
- Institute for Atherosclerosis Research, Skolkovo Innovative Center, Moscow 121609, Russia
| | - Yuri V. Bobryshev
- Laboratory of Angiopathology, Institute of General Pathology and Pathophysiology, Russian Academy of Sciences, Moscow 125315, Russia
- Faculty of Medicine and St Vincent's Centre for Applied Medical Research, University of New South Wales, Sydney, NSW 2052, Australia
- School of Medicine, University of Western Sydney, Campbelltown, NSW 2560, Australia
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Price NL, Ramírez CM, Fernández-Hernando C. Relevance of microRNA in metabolic diseases. Crit Rev Clin Lab Sci 2014; 51:305-20. [PMID: 25034902 DOI: 10.3109/10408363.2014.937522] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Metabolic syndrome is a complex metabolic condition caused by abnormal adipose deposition and function, dyslipidemia and hyperglycemia, which affects >47 million American adults and ∼1 million children. Individuals with the metabolic syndrome have essentially twice the risk for developing cardiovascular disease (CVD) and Type 2 diabetes mellitus (T2D), compared to those without the syndrome. In the search for improved and novel therapeutic strategies, microRNAs (miRNA) have been shown to be interesting targets due to their regulatory role on gene networks controlling different crucial aspects of metabolism, including lipid and glucose homeostasis. More recently, the discovery of circulating miRNAs suggest that miRNAs may be involved in facilitating metabolic crosstalk between organs as well as serving as novel biomarkers of diseases, including T2D and atherosclerosis. These findings highlight the importance of miRNAs for regulating pathways that underlie metabolic diseases, and their potential as therapeutic targets for the development of novel treatments.
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