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Johnson-Pitt A, Catchpole B, Davison LJ. Exocrine pancreatic inflammation in canine diabetes mellitus - an active offender? Vet J 2024:106241. [PMID: 39243807 DOI: 10.1016/j.tvjl.2024.106241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2024] [Revised: 08/27/2024] [Accepted: 09/01/2024] [Indexed: 09/09/2024]
Abstract
The purpose of this review is to examine the current scientific literature regarding the interplay between the exocrine and endocrine pancreas, specifically the role of the exocrine pancreas in the pathogenesis of canine diabetes mellitus. β-cell death caused by exocrine pancreatic inflammation is thought to be an under-recognised contributor to diabetes mellitus in dogs, with up to 30% of canine diabetic patients with concurrent evidence of pancreatitis at post-mortem examination. Current diagnostics for pancreatitis are imprecise, and treatments for both diseases individually have their own limitations: diabetes through daily insulin injections, which has both welfare and financial implications for the stakeholders, and pancreatitis through treatment of clinical signs, such as analgesia and anti-emetics, rather than targeted treatment of the underlying cause. This review will consider the evidence for exocrine pancreatic inflammation making an active contribution to pancreatic β-cell loss and insulin-deficiency diabetes in the dog and explore current and potential future diagnostic and treatment avenues to improve outcomes for these patients.
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Affiliation(s)
- Arielle Johnson-Pitt
- Department of Clinical Science and Services, The Royal Veterinary College, Hertfordshire AL9 7TA, UK.
| | - Brian Catchpole
- Department of Pathobiology and Population Sciences, The Royal Veterinary College, Hertfordshire AL9 7TA, UK
| | - Lucy J Davison
- Department of Clinical Science and Services, The Royal Veterinary College, Hertfordshire AL9 7TA, UK; Department of Physiology, Anatomy and Genetics, University of Oxford, Oxford OX1 3PT, UK
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2
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Wang Y, Ding H, Guo C, Bao Q, Li D, Xiong Y. LncRNA Malat1 regulates iPSC-derived β-cell differentiation by targeting the miR-15b-5p/Ihh axis. Cell Signal 2024; 113:110975. [PMID: 37972802 DOI: 10.1016/j.cellsig.2023.110975] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Revised: 10/18/2023] [Accepted: 11/13/2023] [Indexed: 11/19/2023]
Abstract
BACKGROUND Differentiation of induced pluripotent stem cells (iPSCs)-derived β-like cells is a novel strategy for treatment of type 1 diabetes. Elucidation of the regulatory mechanisms of long noncoding RNAs (lncRNAs) in β-like cells derived from iPSCs is important for understanding the development of the pancreas and pancreatic β-cells and may improve the quality of β-like cells for stem cell therapy. METHODS β-like cells were derived from iPSCs in a three-step protocol. RNA sequencing and bioinformatics analysis were carried out to screen the differentially expressed lncRNAs and identify the putative target genes separately. LncRNA Malat1 was chosen for further research. Series of loss and gain of functions experiments were performed to study the biological function of LncRNA Malat1. Quantitative real-time PCR (qRT-PCR), Western blot (WB) analysis and immunofluorescence (IF) staining were carried out to separately detect the functions of pancreatic β-cells at the mRNA and protein levels. Cytoplasmic and nuclear RNA fractionation and fluorescence in situ hybridization (FISH) were used to determine the subcellar location of lncRNA Malat1 in β-like cells. Enzyme-linked immunosorbent assays (ELISAs) were performed to examine the differentiation and insulin secretion of β-like cells after stimulation with different glucose concentrations. Structural interactions between lncRNA Malat1 and miR-15b-5p and between miR-15b-5p/Ihh were detected by dual luciferase reporter assays (LRAs). RESULTS We found that the expression of lncRNA Malat1 declined during differentiation, and overexpression (OE) of lncRNA Malat1 notably impaired the differentiation and maturation of β-like cells derived from iPSCs in vitro and in vivo. Most importantly, lncRNA Malat1 could function as a competing endogenous RNA (ceRNA) of miR-15b-5p to regulate the expression of Ihh according to bioinformatics prediction, mechanistic analysis and downstream experiments. CONCLUSION This study established an unreported regulatory network of lncRNA Malat1 and the miR-15b-5p/Ihh axis during the differentiation of iPSCs into β-like cells. In addition to acting as an oncogene promoting tumorigenesis, lncRNA Malat1 may be an effective and novel target for treatment of diabetes in the future.
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Affiliation(s)
- Yao Wang
- Department of Hepatobiliary and Pancreatic Surgery, Affiliated Hospital of Nantong University, Nantong 226001, China; Research Center of Clinical Medicine, Affiliated Hospital of Nantong University, Nantong 226001, China
| | - Haoxiang Ding
- Nantong University Medical School, Nantong 226001, China
| | - Chengfeng Guo
- Nantong University Medical School, Nantong 226001, China
| | - Qian Bao
- Nantong University Medical School, Nantong 226001, China
| | - Dongqian Li
- Nantong University Medical School, Nantong 226001, China
| | - Yicheng Xiong
- Department of Hepatobiliary and Pancreatic Surgery, Affiliated Hospital of Nantong University, Nantong 226001, China.
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Sira J, Zhang X, Gao L, Wabo TMC, Li J, Akiti C, Zhang W, Sun D. Effects of Inorganic Arsenic on Type 2 Diabetes Mellitus In Vivo: the Roles and Mechanisms of miRNAs. Biol Trace Elem Res 2024; 202:111-121. [PMID: 37131019 DOI: 10.1007/s12011-023-03669-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Accepted: 04/12/2023] [Indexed: 05/04/2023]
Abstract
Accumulating studies have shown that chronic exposure to iAs correlates with an increased incidence of diabetes. In recent years, miRNA dysfunction has emerged both as a response to iAs exposure and independently as candidate drivers of metabolic phenotypes such as T2DM. However, few miRNAs have been profiled during the progression of diabetes after iAs exposure in vivo. In the present study, high iAs (10 mg/L NaAsO2) exposure mice models of C57BKS/Leprdb (db/db) and C57BLKS/J (WT) were established through the drinking water, the exposure duration was 14 weeks. The results showed that high iAs exposure induced no significant changes in FBG levels in either db/db or WT mice. FBI levels, C-peptide content, and HOMA-IR levels were significantly increased, and glycogen levels in the livers were significantly lower in arsenic-exposed db/db mice. HOMA-β% was decreased significantly in WT mice exposed to high iAs. In addition, more different metabolites were found in the arsenic-exposed group than the control group in db/db mice, mainly involved in the lipid metabolism pathway. Highly expressed glucose, insulin, and lipid metabolism-related miRNAs were selected, including miR-29a-3p, miR-143-3p, miR-181a-3p, miR-122-3p, miR-22-3p, and miR-16-3p. And a series of target genes were chosen for analysis, such as ptp1b, irs1, irs2, sirt1, g6pase, pepck and glut4. The results showed that, the axles of miR-181a-3p-irs2, miR-181a-3p-sirt1, miR-22-3p-sirt1, and miR-122-3p-ptp1b in db/db mice, and miR-22-3p-sirt1, miR-16-3p-glut4 in WT mice could be considered promising targets to explore the mechanisms and therapeutic aspects of T2DM after exposure to high iAs.
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Affiliation(s)
- Jackson Sira
- Center for Endemic Disease Control, Chinese Center for Disease Control and Prevention, Harbin Medical University, Harbin, China
- Key Lab of Etiology and Epidemiology, Education Bureau of Heilongjiang Province & Ministry of Health (23618504), Harbin, 150081, China
- Heilongjiang Provincial Key Laboratory of Trace Elements and Human Health, Harbin, 150081, China
- Department of Biomedical Sciences, Faculty of Sciences, University of Ngaoundéré, P.O Box 454, Ngaoundéré, Cameroon
| | - Xiaodan Zhang
- Center for Endemic Disease Control, Chinese Center for Disease Control and Prevention, Harbin Medical University, Harbin, China
- Key Lab of Etiology and Epidemiology, Education Bureau of Heilongjiang Province & Ministry of Health (23618504), Harbin, 150081, China
- Heilongjiang Provincial Key Laboratory of Trace Elements and Human Health, Harbin, 150081, China
| | - Lin Gao
- Center for Endemic Disease Control, Chinese Center for Disease Control and Prevention, Harbin Medical University, Harbin, China
- Key Lab of Etiology and Epidemiology, Education Bureau of Heilongjiang Province & Ministry of Health (23618504), Harbin, 150081, China
- Heilongjiang Provincial Key Laboratory of Trace Elements and Human Health, Harbin, 150081, China
| | - Therese Martin Cheteu Wabo
- Department of Biomedical Sciences, Faculty of Sciences, University of Ngaoundéré, P.O Box 454, Ngaoundéré, Cameroon
- Department of Nutrition and Food Hygiene, Harbin Medical University, Harbin, 150081, China
| | - Jinyu Li
- Center for Endemic Disease Control, Chinese Center for Disease Control and Prevention, Harbin Medical University, Harbin, China
- Key Lab of Etiology and Epidemiology, Education Bureau of Heilongjiang Province & Ministry of Health (23618504), Harbin, 150081, China
- Heilongjiang Provincial Key Laboratory of Trace Elements and Human Health, Harbin, 150081, China
| | - Caselia Akiti
- Center for Endemic Disease Control, Chinese Center for Disease Control and Prevention, Harbin Medical University, Harbin, China
- Key Lab of Etiology and Epidemiology, Education Bureau of Heilongjiang Province & Ministry of Health (23618504), Harbin, 150081, China
- Heilongjiang Provincial Key Laboratory of Trace Elements and Human Health, Harbin, 150081, China
| | - Wei Zhang
- Center for Endemic Disease Control, Chinese Center for Disease Control and Prevention, Harbin Medical University, Harbin, China.
- Key Lab of Etiology and Epidemiology, Education Bureau of Heilongjiang Province & Ministry of Health (23618504), Harbin, 150081, China.
- Heilongjiang Provincial Key Laboratory of Trace Elements and Human Health, Harbin, 150081, China.
| | - Dianjun Sun
- Center for Endemic Disease Control, Chinese Center for Disease Control and Prevention, Harbin Medical University, Harbin, China.
- Key Lab of Etiology and Epidemiology, Education Bureau of Heilongjiang Province & Ministry of Health (23618504), Harbin, 150081, China.
- Heilongjiang Provincial Key Laboratory of Trace Elements and Human Health, Harbin, 150081, China.
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Jo S, Alejandro EU. RISING STARS: Mechanistic insights into maternal-fetal cross talk and islet beta-cell development. J Endocrinol 2023; 259:e230069. [PMID: 37855321 PMCID: PMC10692651 DOI: 10.1530/joe-23-0069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Accepted: 10/18/2023] [Indexed: 10/20/2023]
Abstract
The metabolic health trajectory of an individual is shaped as early as prepregnancy, during pregnancy, and lactation period. Both maternal nutrition and metabolic health status are critical factors in the programming of offspring toward an increased propensity to developing type 2 diabetes in adulthood. Pancreatic beta-cells, part of the endocrine islets, which are nutrient-sensitive tissues important for glucose metabolism, are primed early in life (the first 1000 days in humans) with limited plasticity later in life. This suggests the high importance of the developmental window of programming in utero and early in life. This review will focus on how changes to the maternal milieu increase offspring's susceptibility to diabetes through changes in pancreatic beta-cell mass and function and discuss potential mechanisms by which placental-driven nutrient availability, hormones, exosomes, and immune alterations that may impact beta-cell development in utero, thereby affecting susceptibility to type 2 diabetes in adulthood.
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Affiliation(s)
- Seokwon Jo
- Department of Integrative Biology & Physiology, University of Minnesota Medical School, Minneapolis, Minnesota, USA
| | - Emilyn U Alejandro
- Department of Integrative Biology & Physiology, University of Minnesota Medical School, Minneapolis, Minnesota, USA
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Wang W, Li S, Hao Y, Cui B, Zheng X, Yan L, Yang X. MicroRNA-365-3p inhibits bone marrow mesenchymal stem cell differentiation into islet-like cell clusters via targeting Pax6 and inhibiting the MEK/ERK pathway. Minerva Endocrinol (Torino) 2023; 48:420-431. [PMID: 34160186 DOI: 10.23736/s2724-6507.21.03389-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
BACKGROUND Diabetes has severe impacts on the health of patients. The differentiation of mesenchymal stem cells (MSCs) into islet-like cell clusters (ICCs) is an effective protocol for the treatment of diabetes. microRNAs (miRs) regulate multiple cellular processes including cell differentiation. This study sought to identify the mechanism of miR-365-3p in the differentiation of bone marrow MSCs (bMSCs) into ICCs. METHODS Initially, the differentiation of bMSCs into ICCs was induced. Then, the miR-365-3p expression pattern in the bMSCs and ICCs was detected. Next, the miR-365-3p expression pattern was silenced in bMSCs to assess the effect on differentiation efficiency and measure the expressions of ICC marker genes during the differentiation of bMSCs into ICCs. The miR-365-3p downstream target genes were predicted and verified. Paired box protein 6 (Pax6) was downregulated in bMSCs with silenced miR-365-3p to evaluate the differentiation of bMSCs into ICCs. Furthermore, the Pax6 downstream pathway was evaluated. RESULTS The differentiation of bMSCs into ICCs was successfully induced. The miR-365-3p expression in bMSCs was higher than that in ICCs. miR-365-3p downregulation in bMSCs facilitated the differentiation of bMSCs into ICCs, as evidenced by elevated releases of insulin and C-peptide in ICCs and elevated expressions of ICC marker genes. Our findings denoted that miR-365-3p targeted Pax6. Inhibition of Pax6 expression annulled the promotion of miR-365-3p downregulation on the differentiation of bMSCs into ICCs. Increased phosphorylation levels of MEK and ERK were identified in ICCs after downregulation of miR-365-3p however they were decreased after downregulation of Pax6. CONCLUSIONS This study supported that miR-365-3p inhibited the differentiation of bMSCs into ICCs via targeting Pax6 and inhibiting the MEK/ERK pathway.
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Affiliation(s)
- Wenting Wang
- Department of Physiology, Mudanjiang Medical University, Mudanjiang, China
| | - Shu Li
- Department of Medical Function, Mudanjiang Medical University, Mudanjiang, China
| | - Yankun Hao
- Department of Medical Function, Mudanjiang Medical University, Mudanjiang, China
| | - Baixiang Cui
- Department of Pathology, The Second Hospital of Mudanjiang Medical University, Mudanjiang, China
| | - Xuezhi Zheng
- Department of Physiology, Mudanjiang Medical University, Mudanjiang, China
| | - Lei Yan
- Department of Histology and Embryology, Mudanjiang Medical University, Mudanjiang, China
| | - Xufang Yang
- Department of Pathophysiology, Mudanjiang Medical University, Mudanjiang, China -
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6
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Macvanin MT, Gluvic Z, Bajic V, Isenovic ER. Novel insights regarding the role of noncoding RNAs in diabetes. World J Diabetes 2023; 14:958-976. [PMID: 37547582 PMCID: PMC10401459 DOI: 10.4239/wjd.v14.i7.958] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Revised: 05/01/2023] [Accepted: 05/23/2023] [Indexed: 07/12/2023] Open
Abstract
Diabetes mellitus (DM) is a group of metabolic disorders defined by hyperglycemia induced by insulin resistance, inadequate insulin secretion, or excessive glucagon secretion. In 2021, the global prevalence of diabetes is anticipated to be 10.7% (537 million people). Noncoding RNAs (ncRNAs) appear to have an important role in the initiation and progression of DM, according to a growing body of research. The two major groups of ncRNAs implicated in diabetic disorders are miRNAs and long noncoding RNAs. miRNAs are single-stranded, short (17–25 nucleotides), ncRNAs that influence gene expression at the post-transcriptional level. Because DM has reached epidemic proportions worldwide, it appears that novel diagnostic and therapeutic strategies are required to identify and treat complications associated with these diseases efficiently. miRNAs are gaining attention as biomarkers for DM diagnosis and potential treatment due to their function in maintaining physiological homeostasis via gene expression regulation. In this review, we address the issue of the gradually expanding global prevalence of DM by presenting a complete and up-to-date synopsis of various regulatory miRNAs involved in these disorders. We hope this review will spark discussion about ncRNAs as prognostic biomarkers and therapeutic tools for DM. We examine and synthesize recent research that used novel, high-throughput technologies to uncover ncRNAs involved in DM, necessitating a systematic approach to examining and summarizing their roles and possible diagnostic and therapeutic uses.
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Affiliation(s)
- Mirjana T Macvanin
- Department of Radiobiology and Molecular Genetics, Vinča Institute of Nuclear Sciences - National Institute of the Republic of Serbia, University of Belgrade, Belgrade 11000, Serbia
| | - Zoran Gluvic
- Department of Endocrinology and Diabetes, Clinic for Internal Medicine, Zemun Clinical Hospital, School of Medicine, University of Belgrade, Belgrade 11000, Serbia
| | - Vladan Bajic
- Department of Radiobiology and Molecular Genetics, Vinča Institute of Nuclear Sciences - National Institute of the Republic of Serbia, University of Belgrade, Belgrade 11000, Serbia
| | - Esma R Isenovic
- Department of Radiobiology and Molecular Genetics, Vinča Institute of Nuclear Sciences - National Institute of the Republic of Serbia, University of Belgrade, Belgrade 11000, Serbia
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Al-Mahayni S, Ali M, Khan M, Jamsheer F, Moin ASM, Butler AE. Glycemia-Induced miRNA Changes: A Review. Int J Mol Sci 2023; 24:ijms24087488. [PMID: 37108651 PMCID: PMC10144997 DOI: 10.3390/ijms24087488] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2023] [Revised: 04/11/2023] [Accepted: 04/13/2023] [Indexed: 04/29/2023] Open
Abstract
Diabetes is a rapidly increasing global health concern that significantly strains the health system due to its downstream complications. Dysregulation in glycemia represents one of the fundamental obstacles to achieving glycemic control in diabetic patients. Frequent hyperglycemia and/or hypoglycemia events contribute to pathologies that disrupt cellular and metabolic processes, which may contribute to the development of macrovascular and microvascular complications, worsening the disease burden and mortality. miRNAs are small single-stranded non-coding RNAs that regulate cellular protein expression and have been linked to various diseases, including diabetes mellitus. miRNAs have proven useful in the diagnosis, treatment, and prognosis of diabetes and its complications. There is a vast body of literature examining the role of miRNA biomarkers in diabetes, aiming for earlier diagnoses and improved treatment for diabetic patients. This article reviews the most recent literature discussing the role of specific miRNAs in glycemic control, platelet activity, and macrovascular and microvascular complications. Our review examines the different miRNAs involved in the pathological processes leading to the development of type 2 diabetes mellitus, such as endothelial dysfunction, pancreatic beta-cell dysfunction, and insulin resistance. Furthermore, we discuss the potential applications of miRNAs as next-generation biomarkers in diabetes with the aim of preventing, treating, and reversing diabetes.
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Affiliation(s)
- Sara Al-Mahayni
- School of Medicine, Royal College of Surgeons in Ireland Bahrain, Busaiteen 15503, Bahrain
| | - Mohamed Ali
- School of Medicine, Royal College of Surgeons in Ireland Bahrain, Busaiteen 15503, Bahrain
| | - Muhammad Khan
- School of Medicine, Royal College of Surgeons in Ireland Bahrain, Busaiteen 15503, Bahrain
| | - Fatema Jamsheer
- School of Medicine, Royal College of Surgeons in Ireland Bahrain, Busaiteen 15503, Bahrain
| | - Abu Saleh Md Moin
- Research Department, Royal College of Surgeons in Ireland Bahrain, Busaiteen 15503, Bahrain
| | - Alexandra E Butler
- Research Department, Royal College of Surgeons in Ireland Bahrain, Busaiteen 15503, Bahrain
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8
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Sun G, Qi M, Kim AS, Lizhar EM, Sun OW, Al-Abdullah IH, Riggs AD. Reassessing the Abundance of miRNAs in the Human Pancreas and Rodent Cell Lines and Its Implication. Noncoding RNA 2023; 9:ncrna9020020. [PMID: 36960965 PMCID: PMC10037588 DOI: 10.3390/ncrna9020020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Revised: 02/24/2023] [Accepted: 03/13/2023] [Indexed: 03/22/2023] Open
Abstract
miRNAs are critical for pancreas development and function. However, we found that there are discrepancies regarding pancreatic miRNA abundance in published datasets. To obtain a more relevant profile that is closer to the true profile, we profiled small RNAs from human islets cells, acini, and four rodent pancreatic cell lines routinely used in diabetes and pancreatic research using a bias reduction protocol for small RNA sequencing. In contrast to the previous notion that miR-375-3p is the most abundant pancreatic miRNA, we found that miR-148a-3p and miR-7-5p were also abundant in islets. In silico studies using predicted and validated targets of these three miRNAs revealed that they may work cooperatively in endocrine and exocrine cells. Our results also suggest, compared to the most-studied miR-375, that both miR-148a-3p and miR-7-5p may play more critical roles in the human pancreas. Moreover, according to in silico-predicted targets, we found that miR-375-3p had a much broader target spectrum by targeting the coding sequence and the 5' untranslated region, rather than the conventional 3' untranslated region, suggesting additional unexplored roles of miR-375-3p beyond the pancreas. Our study provides a valuable new resource for studying miRNAs in pancreata.
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Affiliation(s)
- Guihua Sun
- Department of Diabetes Complications & Metabolism, Arthur Riggs Diabetes & Metabolism Research Institute, City of Hope, Duarte, CA 91010, USA
- Department of Neurodegenerative Diseases, Beckman Research Institute, City of Hope, Duarte, CA 91010, USA
| | - Meirigeng Qi
- Department of Translational Research & Cellular Therapeutics, Arthur Riggs Diabetes & Metabolism Research Institute, City of Hope, Duarte, CA 91010, USA
| | - Alexis S Kim
- Department of Diabetes Complications & Metabolism, Arthur Riggs Diabetes & Metabolism Research Institute, City of Hope, Duarte, CA 91010, USA
| | - Elizabeth M Lizhar
- Department of Diabetes Complications & Metabolism, Arthur Riggs Diabetes & Metabolism Research Institute, City of Hope, Duarte, CA 91010, USA
| | - Olivia W Sun
- Department of Diabetes & Cancer Metabolism, Arthur Riggs Diabetes & Metabolism Research Institute, City of Hope, Duarte, CA 91010, USA
| | - Ismail H Al-Abdullah
- Department of Translational Research & Cellular Therapeutics, Arthur Riggs Diabetes & Metabolism Research Institute, City of Hope, Duarte, CA 91010, USA
| | - Arthur D Riggs
- Department of Diabetes Complications & Metabolism, Arthur Riggs Diabetes & Metabolism Research Institute, City of Hope, Duarte, CA 91010, USA
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Marchelek-Mysliwiec M, Nalewajska M, Turoń-Skrzypińska A, Kotrych K, Dziedziejko V, Sulikowski T, Pawlik A. The Role of Forkhead Box O in Pathogenesis and Therapy of Diabetes Mellitus. Int J Mol Sci 2022; 23:ijms231911611. [PMID: 36232910 PMCID: PMC9569915 DOI: 10.3390/ijms231911611] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2022] [Revised: 09/19/2022] [Accepted: 09/28/2022] [Indexed: 11/16/2022] Open
Abstract
Type 2 diabetes is a disease that causes numerous complications disrupting the functioning of the entire body. Therefore, new treatments for the disease are being sought. Studies in recent years have shown that forkhead box O (FOXO) proteins may be a promising target for diabetes therapy. FOXO proteins are transcription factors involved in numerous physiological processes and in various pathological conditions, including cardiovascular diseases and diabetes. Their roles include regulating the cell cycle, DNA repair, influencing apoptosis, glucose metabolism, autophagy processes and ageing. FOXO1 is an important regulator of pancreatic beta-cell function affecting pancreatic beta cells under conditions of insulin resistance. FOXO1 also protects beta cells from damage resulting from oxidative stress associated with glucose and lipid overload. FOXO has been shown to affect a number of processes involved in the development of diabetes and its complications. FOXO regulates pancreatic β-cell function during metabolic stress and also plays an important role in regulating wound healing. Therefore, the pharmacological regulation of FOXO proteins is a promising approach to developing treatments for many diseases, including diabetes mellitus. In this review, we describe the role of FOXO proteins in the pathogenesis of diabetes and the role of the modulation of FOXO function in the therapy of this disease.
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Affiliation(s)
| | - Magdalena Nalewajska
- Department of Nephrology, Transplantology and Internal Medicine, Pomeranian Medical University, 70-204 Szczecin, Poland
| | - Agnieszka Turoń-Skrzypińska
- Department of Medical Rehabilitation and Clinical Rehabilitation, Pomeranian Medical University, 70-204 Szczecin, Poland
| | - Katarzyna Kotrych
- Department of Radiology, West Pomeranian Center of Oncology, Pomeranian Medical University, 70-204 Szczecin, Poland
| | - Violetta Dziedziejko
- Department of Biochemistry and Medical Chemistry, Pomeranian Medical University, 70-204 Szczecin, Poland
| | - Tadeusz Sulikowski
- Department of General, Minimally Invasive, and Gastroenterological Surgery, Pomeranian Medical University, 70-204 Szczecin, Poland
| | - Andrzej Pawlik
- Department of Physiology, Pomeranian Medical University, 70-204 Szczecin, Poland
- Correspondence:
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Sharari S, Kabeer B, Mohammed I, Haris B, Pavlovski I, Hawari I, Bhat AA, Toufiq M, Tomei S, Mathew R, Syed N, Nisar S, Maacha S, Grivel JC, Chaussabel D, Ericsson J, Hussain K. Understanding the Role of GLUT2 in Dysglycemia Associated with Fanconi-Bickel Syndrome. Biomedicines 2022; 10:biomedicines10092114. [PMID: 36140215 PMCID: PMC9495670 DOI: 10.3390/biomedicines10092114] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Revised: 08/14/2022] [Accepted: 08/15/2022] [Indexed: 12/04/2022] Open
Abstract
Fanconi−Bickel Syndrome (FBS) is a rare disorder of carbohydrate metabolism that is characterized by the accumulation of glycogen mainly in the liver. It is inherited in an autosomal recessive manner due to mutations in the SLC2A2 gene. SLC2A2 encodes for the glucose transporter GLUT2 and is expressed in tissues that are involved in glucose homeostasis. The molecular mechanisms of dysglycemia in FBS are still not clearly understood. In this study, we report two cases of FBS with classical phenotypes of FBS associated with dysglycemia. Genomic DNA was extracted and analyzed by whole-genome and Sanger sequencing, and patient PBMCs were used for molecular analysis. One patient had an exonic SLC2A2 mutation (c.1093C>T in exon 9, R365X), while the other patient had a novel intronic SLC2A2 mutation (c.613-7T>G). Surprisingly, the exonic mutation resulted in the overexpression of dysfunctional GLUT2, resulting in the dysregulated expression of other glucose transporters. The intronic mutation did not affect the coding sequence of GLUT2, its expression, or glucose transport activity. However, it was associated with the expression of miRNAs correlated with type 1 diabetes mellitus, with a particular significant overexpression of hsa-miR-29a-3p implicated in insulin production and secretion. Our findings suggest that SLC2A2 mutations cause dysglycemia in FBS either by a direct effect on GLUT2 expression and/or activity or, indirectly, by the dysregulated expression of miRNAs implicated in glucose homeostasis.
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Affiliation(s)
- Sanaa Sharari
- Division of Biological and Biomedical Sciences, College of Health and Life Sciences, Hamad Bin Khalifa University (HBKU), Qatar Foundation, Doha 34110, Qatar
- Department of Pediatric Medicine, Division of Endocrinology, Sidra Medicine, Doha 26999, Qatar
| | | | - Idris Mohammed
- Division of Biological and Biomedical Sciences, College of Health and Life Sciences, Hamad Bin Khalifa University (HBKU), Qatar Foundation, Doha 34110, Qatar
- Department of Pediatric Medicine, Division of Endocrinology, Sidra Medicine, Doha 26999, Qatar
| | - Basma Haris
- Department of Pediatric Medicine, Division of Endocrinology, Sidra Medicine, Doha 26999, Qatar
| | | | - Iman Hawari
- Division of Biological and Biomedical Sciences, College of Health and Life Sciences, Hamad Bin Khalifa University (HBKU), Qatar Foundation, Doha 34110, Qatar
- Department of Pediatric Medicine, Division of Endocrinology, Sidra Medicine, Doha 26999, Qatar
| | | | | | - Sara Tomei
- Research Branch, Sidra Medicine, Doha 26999, Qatar
| | | | - Najeeb Syed
- Research Branch, Sidra Medicine, Doha 26999, Qatar
| | - Sabah Nisar
- Research Branch, Sidra Medicine, Doha 26999, Qatar
| | - Selma Maacha
- Research Branch, Sidra Medicine, Doha 26999, Qatar
| | | | | | - Johan Ericsson
- Division of Biological and Biomedical Sciences, College of Health and Life Sciences, Hamad Bin Khalifa University (HBKU), Qatar Foundation, Doha 34110, Qatar
- School of Medicine and Medical Science, University College Dublin, Belfield, 4 D4 Dublin, Ireland
| | - Khalid Hussain
- Department of Pediatric Medicine, Division of Endocrinology, Sidra Medicine, Doha 26999, Qatar
- Correspondence:
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11
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Heris HV, Zahraei Z. miRNAs: Regulators of immune system in diabetes. MUTATION RESEARCH. REVIEWS IN MUTATION RESEARCH 2022; 790:108442. [PMID: 36089265 DOI: 10.1016/j.mrrev.2022.108442] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2021] [Revised: 08/30/2022] [Accepted: 09/06/2022] [Indexed: 01/01/2023]
Abstract
Diabetes, one of the most common multifactorial metabolic disorders, is a jeopardizing cause of human health worldwide. MicroRNAs (miRNAs) are a group of small non-coding RNAs that have been contributed to the regulation of gene expression through post-transcriptional mechanisms. The potential role of miRNAs has been studied in the most of biological processes and mechanisms underlying the progression of variety diseases including diabetes. In this review, we focus on the role of miRNAs in regulating pivotal molecular and cellular mechanisms associated with immune system that progress diabetic disorders.
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Affiliation(s)
- Helaleh Vaezi Heris
- Department of Animal Biology, Faculty of Natural Science, University of Tabriz, Tabriz, Iran
| | - Zohreh Zahraei
- Department of Cell and Molecular Biology, Faculty of Chemistry, University of Kashan, Iran.
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12
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Li Y, Chen Y, Liu Z, Lin B, Deng X, Xiao Q, Chen Z, Ye H, Chen D, Su Y, Li W, Xu W. Downregulation of Kcnq1ot1 attenuates β-cell proliferation and insulin secretion via the miR-15b-5p/Ccnd1 and Ccnd2 axis. Acta Diabetol 2022; 59:885-899. [PMID: 35347427 DOI: 10.1007/s00592-022-01871-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Accepted: 02/18/2022] [Indexed: 12/20/2022]
Abstract
AIM To examine the effect of lncRNA Kcnq1ot1 on pancreatic β cells in the development of diabetes. METHODS The expression levels of Kcnq1ot1 were detected in the islets of diabetes mouse models and the serum of patients with type 2 diabetes by qRT-PCR. CCK8, Ki67 staining, immunohistochemical analyses, glucose-stimulated insulin secretion and intraperitoneal glucose tolerance test were performed to detect the effect of Kcnq1ot1 on β-cell proliferation and insulin secretion in vitro and in vivo. The relationship between Kcnq1ot1 and miR-15b-5p was predicted by bioinformatics prediction, which was confirmed by luciferase reporter assay. RESULTS Kcnq1ot1 was more abundant in the pancreas. The expression of Kcnq1ot1 was decreased in the islets of db/db mice and diet-induced obese mice and in the serum of patients with type 2 diabetes. Silencing Kcnq1ot1 inhibited the β-cell proliferation concomitant with a reduction in the levels of Ccnd1 and Ccnd2. Insulin synthesis and secretion were impaired, along with the decreased expression of Ins1, Ins2, and insulin-related transcription factors. Moreover, Kcnq1ot1 knockdown in vivo reduced glucose tolerance and decreased insulin secretion, consistent with the reduction in the relative islet area and Ki67-positive β-cells detected by immunochemistry and immunofluorescence staining, respectively. Mechanistically, Kcnq1ot1 directly targeted miR-15b-5p which regulated β-cell proliferation and insulin secretion through Ccnd1 and Ccnd2. Notably, the suppression of miR-15b-5p attenuated the inhibition of Min6 proliferation and insulin production induced by Kcnq1ot1 knockdown. CONCLUSION Kcnq1ot1 regulated β-cell proliferation and insulin secretion via the miR-15b-5p/Ccnd1 and Ccnd2 axis, which is worthy of further investigation considering its potential in diabetes treatment.
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Affiliation(s)
- Yanli Li
- Department of Endocrinology, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510260, China
| | - Yalan Chen
- Key Laboratory of Diabetology of Guangdong Province, Department of Endocrinology and Metabolism, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, 510630, China
| | - Ziyu Liu
- Key Laboratory of Diabetology of Guangdong Province, Department of Endocrinology and Metabolism, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, 510630, China
| | - Beisi Lin
- Key Laboratory of Diabetology of Guangdong Province, Department of Endocrinology and Metabolism, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, 510630, China
| | - Xiaoyi Deng
- Department of Endocrinology, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510260, China
| | - Qiwen Xiao
- Department of Clinical Laboratory, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Zhishan Chen
- Department of Endocrinology, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510260, China
| | - Huiyu Ye
- Department of Endocrinology, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510260, China
| | - Danrui Chen
- Key Laboratory of Diabetology of Guangdong Province, Department of Endocrinology and Metabolism, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, 510630, China
| | - Yanna Su
- Key Laboratory of Diabetology of Guangdong Province, Department of Endocrinology and Metabolism, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, 510630, China
| | - Wangen Li
- Department of Endocrinology, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510260, China.
| | - Wen Xu
- Key Laboratory of Diabetology of Guangdong Province, Department of Endocrinology and Metabolism, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, 510630, China.
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13
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Todero JE, Koch-Laskowski K, Shi Q, Kanke M, Hung YH, Beck R, Styblo M, Sethupathy P. Candidate master microRNA regulator of arsenic-induced pancreatic beta cell impairment revealed by multi-omics analysis. Arch Toxicol 2022; 96:1685-1699. [PMID: 35314868 PMCID: PMC9095563 DOI: 10.1007/s00204-022-03263-9] [Citation(s) in RCA: 4] [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: 01/17/2022] [Accepted: 02/17/2022] [Indexed: 02/05/2023]
Abstract
Arsenic is a pervasive environmental toxin that is listed as the top priority for investigation by the Agency for Toxic Substance and Disease Registry. While chronic exposure to arsenic is associated with type 2 diabetes (T2D), the underlying mechanisms are largely unknown. We have recently demonstrated that arsenic treatment of INS-1 832/13 pancreatic beta cells impairs glucose-stimulated insulin secretion (GSIS), a T2D hallmark. We have also shown that arsenic alters the microRNA profile of beta cells. MicroRNAs have a well-established post-transcriptional regulatory role in both normal beta cell function and T2D pathogenesis. We hypothesized that there are microRNA master regulators that shape beta cell gene expression in pathways pertinent to GSIS after exposure to arsenicals. To test this hypothesis, we first treated INS-1 832/13 beta cells with either inorganic arsenic (iAsIII) or monomethylarsenite (MAsIII) and confirmed GSIS impairment. We then performed multi-omic analysis using chromatin run-on sequencing, RNA-sequencing, and small RNA-sequencing to define profiles of transcription, gene expression, and microRNAs, respectively. Integrating across these data sets, we first showed that genes downregulated by iAsIII treatment are enriched in insulin secretion and T2D pathways, whereas genes downregulated by MAsIII treatment are enriched in cell cycle and critical beta cell maintenance factors. We also defined the genes that are subject primarily to post-transcriptional control in response to arsenicals and demonstrated that miR-29a is the top candidate master regulator of these genes. Our results highlight the importance of microRNAs in arsenical-induced beta cell dysfunction and reveal both shared and unique mechanisms between iAsIII and MAsIII.
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Affiliation(s)
- Jenna E Todero
- Department of Biomedical Sciences, College of Veterinary Medicine, Cornell University, Ithaca, NY, USA
| | - Kieran Koch-Laskowski
- Department of Biomedical Sciences, College of Veterinary Medicine, Cornell University, Ithaca, NY, USA
| | - Qing Shi
- Department of Nutrition, Gillings School of Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Matt Kanke
- Department of Biomedical Sciences, College of Veterinary Medicine, Cornell University, Ithaca, NY, USA
| | - Yu-Han Hung
- Department of Biomedical Sciences, College of Veterinary Medicine, Cornell University, Ithaca, NY, USA
| | - Rowan Beck
- Department of Biomedical Sciences, College of Veterinary Medicine, Cornell University, Ithaca, NY, USA
- Department of Nutrition, Gillings School of Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Miroslav Styblo
- Department of Nutrition, Gillings School of Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Praveen Sethupathy
- Department of Biomedical Sciences, College of Veterinary Medicine, Cornell University, Ithaca, NY, USA.
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14
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Molecular dissection of cellular response of pancreatic islet cells to Bisphenol-A (BPA): a comprehensive review. Biochem Pharmacol 2022; 201:115068. [DOI: 10.1016/j.bcp.2022.115068] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Revised: 04/11/2022] [Accepted: 04/25/2022] [Indexed: 12/15/2022]
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15
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Chai S, Kim Y, Galivo F, Dorrell C, Wakefield L, Posey J, Ackermann AM, Kaestner KH, Hebrok M, Grompe M. Development of a beta cell-specific expression control element for rAAV. Hum Gene Ther 2022; 33:789-800. [PMID: 35297680 PMCID: PMC9419973 DOI: 10.1089/hum.2021.219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Diabetes mellitus, caused by loss or dysfunction of the insulin producing beta cells of the pancreas, is a promising target for rAAV-mediated gene therapy. To target potential therapeutic payloads specifically to beta cells, a cell-type specific expression control element is needed. Here, we tested a series of rAAV vectors designed to express transgenes specifically in human beta cells using the islet-tropic rAAV-KP1 capsid. A small promoter, consisting of only 84 bp of the insulin core promoter was not beta cell-specific in AAV, but highly active in multiple cell types, including tissues outside the pancreas. A larger 363 bp fragment of the insulin promoter (INS) also lacked beta cell specificity. However, beta cell-specific expression was achieved by combining two regulatory elements, a promoter consisting of two copies of INS (INSx2) and microRNA (miRNA) regulatory elements (MREs). The INSx2 promoter alone showed some beta cell preference, but not tight specificity. To reduce unspecific transgene expression in alpha cells, negative regulation by miRNAs was applied. MREs that are recognized by miRNAs abundant in alpha cells effectively downregulated the transgene expression in these cells. The INS2x-MRE expression vector was highly specific to human beta cells and stem cell derived beta cells.
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Affiliation(s)
- Sunghee Chai
- Oregon Health & Science University, 6684, Oregon Stem cell center, 3181 SW Sam Jackson Park Road, LBRB Rm 753, Portland, Oregon, United States, 97239-3098;
| | - Youngjin Kim
- UCSF, 8785, UCSF Diabetes Center, San Francisco, California, United States;
| | - Feorillo Galivo
- Oregon Health & Science University, 6684, Oregon Stem cell center, Portland, Oregon, United States;
| | - Craig Dorrell
- OHSU, 6684, Oregon Stem Cell Center, Portland, Oregon, United States;
| | - Leslie Wakefield
- OHSU, 6684, Oregon Stem Cell Center, Portland, Oregon, United States;
| | - Jeffrey Posey
- OHSU, 6684, Oregon Stem Cell Center, Portland, Oregon, United States;
| | - Amanda M Ackermann
- Upenn, 6572, Department of Genetics, Philadelphia, Pennsylvania, United States;
| | - Klaus H Kaestner
- Upenn, 6572, Department of Genetics, Philadelphia, Pennsylvania, United States;
| | - Matthias Hebrok
- UCSF, 8785, UCSF Diabetes Center, San Francisco, California, United States;
| | - Markus Grompe
- OHSU, 6684, Oregon Stem Cell Center, Portland, Oregon, United States;
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16
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Brasil Brandao B, Lino M, Kahn CR. Extracellular miRNAs as mediators of obesity-associated disease. J Physiol 2022; 600:1155-1169. [PMID: 34392542 PMCID: PMC8845532 DOI: 10.1113/jp280910] [Citation(s) in RCA: 31] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Accepted: 08/12/2021] [Indexed: 12/12/2022] Open
Abstract
Extracellular miRNAs are found in a variety of body fluids and mediate intercellular and interorgan communication, thus regulating gene expression and cellular metabolism. These miRNAs are secreted either in small vesicles/exosomes (sEV) or bound to proteins such as Argonaute and high-density lipoprotein. Both exosomal and protein-bound circulating miRNAs are altered in obesity. Although all tissues can contribute to changes in circulating miRNAs, adipose tissue itself is an important source of these miRNAs, especially those in sEVs. These are derived from both adipocytes and macrophages and participate in crosstalk between these cells, as well as peripheral tissues, including liver, skeletal muscle and pancreas, whose function may be impaired in obesity. Changes in levels of circulating miRNAs have also been linked to the beneficial effects induced by weight loss interventions, including diet, exercise and bariatric surgery, further indicating a role for these miRNAs as mediators of disease pathogenesis. Here, we review the role of circulating miRNAs in the pathophysiology of obesity and explore their potential use as biomarkers and in therapy of obesity-associated metabolic syndrome.
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Affiliation(s)
- Bruna Brasil Brandao
- Section on Integrative Physiology and Metabolism, Joslin Diabetes Center, Harvard Medical School, Boston, MA 02215
| | - Marsel Lino
- Section on Integrative Physiology and Metabolism, Joslin Diabetes Center, Harvard Medical School, Boston, MA 02215
| | - C. Ronald Kahn
- Section on Integrative Physiology and Metabolism, Joslin Diabetes Center, Harvard Medical School, Boston, MA 02215
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17
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Ji H, Fan L, Shan A, Wang W, Ning G, Cao Y, Jiang X. Let7b-5p inhibits insulin secretion and decreases pancreatic β-cell mass in mice. Mol Cell Endocrinol 2022; 540:111506. [PMID: 34801668 DOI: 10.1016/j.mce.2021.111506] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Revised: 11/01/2021] [Accepted: 11/08/2021] [Indexed: 10/19/2022]
Abstract
MicroRNAs are crucial regulators for the development, mass and function of pancreatic β-cells. MiRNA dysregulation is associated with β-cell dysfunction and development of diabetes. The members of let7 family are important players in regulating cellular growth and metabolism. In this study we investigated the functional role of let7b-5p in the mouse pancreatic β-cells. We generated pancreatic β-cell-specific let7b-5p transgenic mouse model and analyzed the glucose metabolic phenotype, β-cells mass and insulin secretion in vivo. Luciferase reporter assay, immunofluorescence staining and western blot were carried out to study the target genes of let7b-5p in β-cells. Let7b-5p overexpression impaired the insulin production and secretion of β-cells and resulted impaired glucose tolerance in mice. The overexpressed let7b-5p inhibited pancreatic β-cell proliferation and decreased the expression of cyclin D1 and cyclin D2. Our findings demonstrated that let7b-5p was critical in regulating the proliferation and insulin secretion of pancreatic β-cells.
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Affiliation(s)
- He Ji
- Department of Endocrine and Metabolic Diseases, Shanghai Institute of Endocrine and Metabolic Diseases, National Clinical Research Centre for Metabolic Diseases, Key Laboratory for Endocrine and Metabolic Diseases of the National Health Commission, Shanghai Key Laboratory for Endocrine Tumors, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Liwen Fan
- Department of Endocrine and Metabolic Diseases, Shanghai Institute of Endocrine and Metabolic Diseases, National Clinical Research Centre for Metabolic Diseases, Key Laboratory for Endocrine and Metabolic Diseases of the National Health Commission, Shanghai Key Laboratory for Endocrine Tumors, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Aijing Shan
- Department of Endocrine and Metabolic Diseases, Shanghai Institute of Endocrine and Metabolic Diseases, National Clinical Research Centre for Metabolic Diseases, Key Laboratory for Endocrine and Metabolic Diseases of the National Health Commission, Shanghai Key Laboratory for Endocrine Tumors, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Weiqing Wang
- Department of Endocrine and Metabolic Diseases, Shanghai Institute of Endocrine and Metabolic Diseases, National Clinical Research Centre for Metabolic Diseases, Key Laboratory for Endocrine and Metabolic Diseases of the National Health Commission, Shanghai Key Laboratory for Endocrine Tumors, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Guang Ning
- Department of Endocrine and Metabolic Diseases, Shanghai Institute of Endocrine and Metabolic Diseases, National Clinical Research Centre for Metabolic Diseases, Key Laboratory for Endocrine and Metabolic Diseases of the National Health Commission, Shanghai Key Laboratory for Endocrine Tumors, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yanan Cao
- Department of Endocrine and Metabolic Diseases, Shanghai Institute of Endocrine and Metabolic Diseases, National Clinical Research Centre for Metabolic Diseases, Key Laboratory for Endocrine and Metabolic Diseases of the National Health Commission, Shanghai Key Laboratory for Endocrine Tumors, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China; National Research Center for Translational Medicine, National Key Scientific Infrastructure for Translational Medicine (Shanghai), Shanghai Jiao Tong University, Shanghai, China
| | - Xiuli Jiang
- Department of Endocrine and Metabolic Diseases, Shanghai Institute of Endocrine and Metabolic Diseases, National Clinical Research Centre for Metabolic Diseases, Key Laboratory for Endocrine and Metabolic Diseases of the National Health Commission, Shanghai Key Laboratory for Endocrine Tumors, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
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18
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Kraczkowska W, Stachowiak L, Pławski A, Jagodziński PP. Circulating miRNA as potential biomarkers for diabetes mellitus type 2: should we focus on searching for sex differences? J Appl Genet 2022; 63:293-303. [PMID: 34984663 PMCID: PMC8979931 DOI: 10.1007/s13353-021-00678-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2021] [Revised: 12/18/2021] [Accepted: 12/23/2021] [Indexed: 11/24/2022]
Abstract
microRNAs are non-coding molecules, approximately 22 nucleotides in length, that regulate various cellular processes. A growing body of evidence has suggested that their dysregulated expression is involved in the pathogenesis of diverse diseases, including diabetes mellitus type 2 (DM2). Early onset of this chronic and complex metabolic disorder is frequently undiagnosed, leading to the development of severe diabetic complications. Notably, DM2 prevalence is rising globally and an increasing number of articles demonstrate that DM2 susceptibility, development, and progression differ between males and females. Therefore, this paper discusses the role of microRNAs as a source of novel diagnostic biomarkers for DM2 and aims to underline the importance of sex disparity in biomarkers research. Taking into account an urgent need for the development of sex-specific diagnostic strategies in DM2, recent results have shown that circulating miRNAs are promising candidates for sex-biased biomarkers.
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Affiliation(s)
- Weronika Kraczkowska
- Department of Biochemistry and Molecular Biology, Poznań University of Medical Science, 6 Święcickiego Street, 60-781, Poznan, Poland
| | - Lucyna Stachowiak
- Department of Biochemistry and Molecular Biology, Poznań University of Medical Science, 6 Święcickiego Street, 60-781, Poznan, Poland
| | - Andrzej Pławski
- Institute of Human Genetics, Polish Academy of Sciences, 60-479, Poznan, Poland
| | - Paweł Piotr Jagodziński
- Department of Biochemistry and Molecular Biology, Poznań University of Medical Science, 6 Święcickiego Street, 60-781, Poznan, Poland.
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19
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Yan J, Zou H, Zhou W, Yuan X, Li Z, Ma X, Liu C, Wang Y, Rosenholm JM, Cui W, Qu X, Zhang H. Self-assembly of DNA Nanogels with Endogenous MicroRNA Toehold Self-regulating Switches for Targeted Gene Regulation Therapy. Biomater Sci 2022; 10:4119-4125. [DOI: 10.1039/d2bm00640e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Herein, a smart nanohydrogel with endogenous microRNA-21 toehold is developed to encapsulate gemcitabine-loaded mesoporous silica nanoparticles for targeted pancreatic cancer therapy. This toehold mediated strand displacement method can simultaneously achieve...
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20
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Chen H, Yang A, Wu C, Lin J, Wang X, Peng M, Li D, Zhang T, Zhao Q, He X. Identification of a detection panel for post-transplant virus infection through integrated analysis of non-coding RNAs in peripheral blood. ARTIFICIAL CELLS, NANOMEDICINE, AND BIOTECHNOLOGY 2021; 49:691-698. [PMID: 34882040 DOI: 10.1080/21691401.2021.2011304] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Viral infection seriously affects the survival and life quality of transplanted patients without an accurate diagnosis during the early stage. Herein, we aimed to develop a novel diagnostic method based on non-coding RNAs expression in peripheral blood. An immunosuppressive mouse model of viral infection after transplantation was established. Differentially expressed non-coding RNAs were distinguished by microarray analyses in the virus-infected group. After homology analysis, 46 miRNAs and 24 lncRNAs were further verified by qRT-PCR in the peripheral blood samples of transplanted patients. Compared with normal transplanted patients, miR-29b, miR-185, and NR_073415.2 were significantly downregulated in the PBMC of post-transplant patients with viral infection. Based on the expression of the above three RNAs, principal component analysis (PCA) identified a slight overlap between the two groups. A 3-non-coding-RNA detection panel was constructed by the support vector machine analysis (SVM), whose loss rate was 14.71%. The area under the curve of it was 0.909. With the optimal cut-off value (Y = 0.328), the sensitivity was 0.929 and the specificity was 0.781. Therefore, based on non-coding RNAs expressions, a detection panel for viral infection after organ transplantation was formed with high diagnostic specificity and sensitivity.
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Affiliation(s)
- Huadi Chen
- Organ Transplant Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, P. R. China.,Guangdong Provincial Key Laboratory of Organ Donation and Transplant Immunology, Guangzhou, P. R. China.,Guangdong Provincial International Cooperation Base of Science and Technology (Organ Transplantation), Guangzhou, P. R. China
| | - Anli Yang
- Organ Transplant Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, P. R. China.,Department of Breast Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, P. R. China
| | - Chenglin Wu
- Organ Transplant Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, P. R. China.,Guangdong Provincial Key Laboratory of Organ Donation and Transplant Immunology, Guangzhou, P. R. China.,Guangdong Provincial International Cooperation Base of Science and Technology (Organ Transplantation), Guangzhou, P. R. China
| | - Jianwei Lin
- Department of Hepatobiliary and Pancreas Surgery, Shenzhen People's Hospital, Shenzhen, P. R. China
| | - Xiaoping Wang
- Organ Transplant Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, P. R. China.,Guangdong Provincial Key Laboratory of Organ Donation and Transplant Immunology, Guangzhou, P. R. China.,Guangdong Provincial International Cooperation Base of Science and Technology (Organ Transplantation), Guangzhou, P. R. China
| | - Mengran Peng
- Dermatology Department, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, P. R. China
| | - Dian Li
- Department of Data Science, Dana Farber Cancer Institute, Harvard School of Public Health, Boston, MA, USA
| | - Tao Zhang
- Organ Transplant Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, P. R. China.,Guangdong Provincial Key Laboratory of Organ Donation and Transplant Immunology, Guangzhou, P. R. China.,Guangdong Provincial International Cooperation Base of Science and Technology (Organ Transplantation), Guangzhou, P. R. China
| | - Qiang Zhao
- Organ Transplant Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, P. R. China.,Guangdong Provincial Key Laboratory of Organ Donation and Transplant Immunology, Guangzhou, P. R. China.,Guangdong Provincial International Cooperation Base of Science and Technology (Organ Transplantation), Guangzhou, P. R. China
| | - Xiaoshun He
- Organ Transplant Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, P. R. China.,Guangdong Provincial Key Laboratory of Organ Donation and Transplant Immunology, Guangzhou, P. R. China.,Guangdong Provincial International Cooperation Base of Science and Technology (Organ Transplantation), Guangzhou, P. R. China
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21
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Koduru SV, Leberfinger AN, Ozbolat IT, Ravnic DJ. Navigating the Genomic Landscape of Human Adipose Stem Cell-Derived β-Cells. Stem Cells Dev 2021; 30:1153-1170. [PMID: 34514867 DOI: 10.1089/scd.2021.0160] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Diabetes is a pandemic manifested through glucose dysregulation mediated by inadequate insulin secretion by beta cells. A beta cell replacement strategy would transform the treatment paradigm from pharmacologic glucose modulation to a genuine cure. Stem cells have emerged as a potential source for beta cell (β-cell) engineering. The detailed generation of functional β-cells from both embryonic and induced pluripotent stem cells has recently been described. Adult stem cells, including adipose derived, may also offer a therapeutic approach, but remain ill defined. In our study, we performed an in-depth assessment of insulin-producing beta cells generated from human adipose, irrespective of donor patient age, gender, and health status. Cellular transformation was confirmed using flow cytometry and single-cell imaging. Insulin secretion was observed with glucose stimulation and abrogated following palmitate exposure, a common free fatty acid implicated in human beta cell dysfunction. We used next-generation sequencing to explore gene expression changes before and after differentiation of patient-matched samples, which revealed more than 5,000 genes enriched. Adipose-derived beta cells displayed comparable gene expression to native β-cells. Pathway analysis demonstrated relevance to stem cell differentiation and pancreatic developmental processes, which are vital to cellular function, structural development, and regulation. We conclude that the functions associated with adipose derived beta cells are mediated through relevant changes in the transcriptome, which resemble those seen in native β-cell morphogenesis and maturation. Therefore, they may represent a viable option for the clinical translation of stem cell-based therapies in diabetes.
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Affiliation(s)
- Srinivas V Koduru
- Irvin S. Zubar Plastic Surgery Research Laboratory, Penn State College of Medicine, Hershey, Pennsylvania, USA.,Division of Plastic Surgery, Department of Surgery, Penn State Health Milton S. Hershey Medical Center, Hershey, Pennsylvania, USA.,Department of Cellular and Molecular Physiology, Penn State College of Medicine, Hershey, Pennsylvania, USA
| | - Ashley N Leberfinger
- Irvin S. Zubar Plastic Surgery Research Laboratory, Penn State College of Medicine, Hershey, Pennsylvania, USA.,Division of Plastic Surgery, Department of Surgery, Penn State Health Milton S. Hershey Medical Center, Hershey, Pennsylvania, USA
| | - Ibrahim T Ozbolat
- Department of Biomedical Engineering, Materials Research Institute, The Huck Institutes of Life Sciences, Penn State University, University Park, Pennsylvania, USA.,Engineering Science and Mechanics Department, The Pennsylvania State University, University Park, Pennsylvania, USA
| | - Dino J Ravnic
- Irvin S. Zubar Plastic Surgery Research Laboratory, Penn State College of Medicine, Hershey, Pennsylvania, USA.,Division of Plastic Surgery, Department of Surgery, Penn State Health Milton S. Hershey Medical Center, Hershey, Pennsylvania, USA
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22
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Adipose Tissue Macrophages Modulate Obesity-Associated β Cell Adaptations through Secreted miRNA-Containing Extracellular Vesicles. Cells 2021; 10:cells10092451. [PMID: 34572101 PMCID: PMC8472266 DOI: 10.3390/cells10092451] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Revised: 09/07/2021] [Accepted: 09/14/2021] [Indexed: 12/19/2022] Open
Abstract
Obesity induces an adaptive expansion of β cell mass and insulin secretion abnormality. Expansion of adipose tissue macrophages (ATMs) is a hallmark of obesity. Here, we assessed a novel role of ATMs in mediating obesity-induced β cell adaptation through the release of miRNA-containing extracellular vesicles (EVs). In both in vivo and in vitro experiments, we show that ATM EVs derived from obese mice notably suppress insulin secretion and enhance β cell proliferation. We also observed similar phenotypes from human islets after obese ATM EV treatment. Importantly, depletion of miRNAs blunts the effects of obese ATM EVs, as evidenced by minimal effects of obese DicerKO ATM EVs on β cell responses. miR-155 is a highly enriched miRNA within obese ATM EVs and miR-155 overexpressed in β cells impairs insulin secretion and enhances β cell proliferation. In contrast, knockout of miR-155 attenuates the regulation of obese ATM EVs on β cell responses. We further demonstrate that the miR-155-Mafb axis plays a critical role in controlling β cell responses. These studies show a novel mechanism by which ATM-derived EVs act as endocrine vehicles delivering miRNAs and subsequently mediating obesity-associated β cell adaptation and dysfunction.
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Ouni M, Gottmann P, Westholm E, Schwerbel K, Jähnert M, Stadion M, Rittig K, Vogel H, Schürmann A. MiR-205 is up-regulated in islets of diabetes-susceptible mice and targets the diabetes gene Tcf7l2. Acta Physiol (Oxf) 2021; 232:e13693. [PMID: 34028994 DOI: 10.1111/apha.13693] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2021] [Revised: 05/12/2021] [Accepted: 05/21/2021] [Indexed: 12/11/2022]
Abstract
AIM MicroRNAs play an important role in the maintenance of cellular functions by fine-tuning gene expression levels. The aim of the current study was to identify genetically caused changes in microRNA expression which associate with islet dysfunction in diabetic mice. METHODS To identify novel microRNAs involved in islet dysfunction, transcriptome and miRNome analyses were performed in islets of obese, diabetes-susceptible NZO and diabetes-resistant B6-ob/ob mice and results combined with quantitative trait loci (QTL) and functional in vitro analysis. RESULTS In islets of NZO and B6-ob/ob mice, 94 differentially expressed microRNAs were detected, of which 11 are located in diabetes QTL. Focusing on conserved microRNAs exhibiting the strongest expression difference and which have not been linked to islet function, miR-205-5p was selected for further analysis. According to transcriptome data and target prediction analyses, miR-205-5p affects genes involved in Wnt and calcium signalling as well as insulin secretion. Over-expression of miR-205-5p in the insulinoma cell line INS-1 increased insulin expression, left-shifted the glucose-dependence of insulin secretion and supressed the expression of the diabetes gene TCF7L2. The interaction between miR-205-5p and TCF7L2 was confirmed by luciferase reporter assay. CONCLUSION MiR-205-5p was identified as relevant microRNA involved in islet dysfunction by interacting with TCF7L2.
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Affiliation(s)
- Meriem Ouni
- Department of Experimental Diabetology German Institute of Human Nutrition Potsdam‐Rehbruecke (DIfE) Nuthetal Germany
- German Center for Diabetes Research (DZD) München‐Neuherberg Germany
| | - Pascal Gottmann
- Department of Experimental Diabetology German Institute of Human Nutrition Potsdam‐Rehbruecke (DIfE) Nuthetal Germany
- German Center for Diabetes Research (DZD) München‐Neuherberg Germany
| | - Efraim Westholm
- Department of Experimental Diabetology German Institute of Human Nutrition Potsdam‐Rehbruecke (DIfE) Nuthetal Germany
- Unit of Islet Cell Exocytosis Department of Clinical Sciences Malmö Lund University Diabetes CentreLund University Malmö Sweden
| | - Kristin Schwerbel
- Department of Experimental Diabetology German Institute of Human Nutrition Potsdam‐Rehbruecke (DIfE) Nuthetal Germany
- German Center for Diabetes Research (DZD) München‐Neuherberg Germany
| | - Markus Jähnert
- Department of Experimental Diabetology German Institute of Human Nutrition Potsdam‐Rehbruecke (DIfE) Nuthetal Germany
- German Center for Diabetes Research (DZD) München‐Neuherberg Germany
| | - Mandy Stadion
- Department of Experimental Diabetology German Institute of Human Nutrition Potsdam‐Rehbruecke (DIfE) Nuthetal Germany
- German Center for Diabetes Research (DZD) München‐Neuherberg Germany
| | - Kilian Rittig
- Clinic for Angiology and Diabetology Frankfurt (Oder) Germany
- Institute of Nutritional Science University of Potsdam Brandenburg Germany
| | - Heike Vogel
- Department of Experimental Diabetology German Institute of Human Nutrition Potsdam‐Rehbruecke (DIfE) Nuthetal Germany
- German Center for Diabetes Research (DZD) München‐Neuherberg Germany
- Research Group Genetics of Obesity German Institute of Human Nutrition Potsdam‐Rehbruecke (DIfE) Nuthetal Germany
- Research Group Molecular and Clinical Life Science of Metabolic Diseases Faculty of Health Sciences Brandenburg University of Potsdam Brandenburg Germany
| | - Annette Schürmann
- Department of Experimental Diabetology German Institute of Human Nutrition Potsdam‐Rehbruecke (DIfE) Nuthetal Germany
- German Center for Diabetes Research (DZD) München‐Neuherberg Germany
- Institute of Nutritional Science University of Potsdam Brandenburg Germany
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β-Cell pre-mir-21 induces dysfunction and loss of cellular identity by targeting transforming growth factor beta 2 (Tgfb2) and Smad family member 2 (Smad2) mRNAs. Mol Metab 2021; 53:101289. [PMID: 34246804 PMCID: PMC8361274 DOI: 10.1016/j.molmet.2021.101289] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Revised: 06/30/2021] [Accepted: 07/05/2021] [Indexed: 12/13/2022] Open
Abstract
OBJECTIVE β-cell microRNA-21 (miR-21) is increased by islet inflammatory stress but it decreases glucose-stimulated insulin secretion (GSIS). Thus, we sought to define the effects of miR-21 on β-cell function using in vitro and in vivo systems. METHODS We developed a tetracycline-on system of pre-miR-21 induction in clonal β-cells and human islets, along with transgenic zebrafish and mouse models of β-cell-specific pre-miR-21 overexpression. RESULTS β-cell miR-21 induction markedly reduced GSIS and led to reductions in transcription factors associated with β-cell identity and increased markers of dedifferentiation, which led us to hypothesize that miR-21 induces β-cell dysfunction by loss of cell identity. In silico analysis identified transforming growth factor-beta 2 (Tgfb2) and Smad family member 2 (Smad2) mRNAs as predicted miR-21 targets associated with the maintenance of β-cell identity. Tgfb2 and Smad2 were confirmed as direct miR-21 targets through RT-PCR, immunoblot, pulldown, and luciferase assays. In vivo zebrafish and mouse models exhibited glucose intolerance, decreased peak GSIS, decreased expression of β-cell identity markers, increased insulin and glucagon co-staining cells, and reduced Tgfb2 and Smad2 expression. CONCLUSIONS These findings implicate miR-21-mediated reduction of mRNAs specifying β-cell identity as a contributor to β-cell dysfunction by the loss of cellular differentiation.
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The MicroRNA Landscape of Acute Beta Cell Destruction in Type 1 Diabetic Recipients of Intraportal Islet Grafts. Cells 2021; 10:cells10071693. [PMID: 34359863 PMCID: PMC8304265 DOI: 10.3390/cells10071693] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Revised: 06/16/2021] [Accepted: 06/24/2021] [Indexed: 01/12/2023] Open
Abstract
Ongoing beta cell death in type 1 diabetes (T1D) can be detected using biomarkers selectively discharged by dying beta cells into plasma. microRNA-375 (miR-375) ranks among the top biomarkers based on studies in animal models and human islet transplantation. Our objective was to identify additional microRNAs that are co-released with miR-375 proportionate to the amount of beta cell destruction. RT-PCR profiling of 733 microRNAs in a discovery cohort of T1D patients 1 h before/after islet transplantation indicated increased plasma levels of 22 microRNAs. Sub-selection for beta cell selectivity resulted in 15 microRNAs that were subjected to double-blinded multicenter analysis. This led to the identification of eight microRNAs that were consistently increased during early graft destruction: besides miR-375, these included miR-132/204/410/200a/429/125b, microRNAs with known function and enrichment in beta cells. Their potential clinical translation was investigated in a third independent cohort of 46 transplant patients by correlating post-transplant microRNA levels to C-peptide levels 2 months later. Only miR-375 and miR-132 had prognostic potential for graft outcome, and none of the newly identified microRNAs outperformed miR-375 in multiple regression. In conclusion, this study reveals multiple beta cell-enriched microRNAs that are co-released with miR-375 and can be used as complementary biomarkers of beta cell death.
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Hua Z, Li D, Wu A, Cao T, Luo S. miR-377 inhibition enhances the survival of trophoblast cells via upregulation of FNDC5 in gestational diabetes mellitus. Open Med (Wars) 2021; 16:464-471. [PMID: 33817324 PMCID: PMC8005781 DOI: 10.1515/med-2021-0247] [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: 07/16/2020] [Revised: 01/07/2021] [Accepted: 02/09/2021] [Indexed: 12/30/2022] Open
Abstract
Gestational diabetes mellitus (GDM) is a metabolic dysregulation closely related to both obesity and type 2 diabetes; however, the molecular mechanism underlying GDM is still unclear. The purpose of this study was to investigate the effects of microRNA-377 (miR-377-3p) and fibronectin type III domain containing 5 (FNDC5) in regulating the cell growth of trophoblasts under high glucose (HG) conditions during the development of GDM. Serum miR-377-3p was upregulated and positively correlated with fasting blood glucose level in GDM patients. miR-377-3p downregulation increased the cell vitality and suppressed the cell apoptosis of HG-treated HTR-8/SVneo and BeWo cells. Using TargetScan prediction, luciferase assay, and western blot, it was found that miR-377-3p could target FNDC5 and suppress its expression. However, FNDC5 downregulation abolished the effect of miR-377-3p inhibitor in HTR-8/SVneo cells. Together, miR-377 is a potential target for GDM biomarker, which promotes cell growth and suppresses cell apoptosis, partly through the upregulation of FNDC5.
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Affiliation(s)
- Zhaozhao Hua
- Department of Obstetrics, The Second Affiliated Hospital of Guizhou University of Traditional Chinese Medicine, No. 83 Feishan Street, Yunyan District, Guiyang City, Guizhou Province, 550003, China
| | - Dana Li
- Department of Obstetrics, The Second Affiliated Hospital of Guizhou University of Traditional Chinese Medicine, No. 83 Feishan Street, Yunyan District, Guiyang City, Guizhou Province, 550003, China
| | - Anqin Wu
- Department of Obstetrics, The Second Affiliated Hospital of Guizhou University of Traditional Chinese Medicine, No. 83 Feishan Street, Yunyan District, Guiyang City, Guizhou Province, 550003, China
| | - Ting Cao
- Department of Obstetrics, The Second Affiliated Hospital of Guizhou University of Traditional Chinese Medicine, No. 83 Feishan Street, Yunyan District, Guiyang City, Guizhou Province, 550003, China
| | - Shi Luo
- Department of Obstetrics, The Second Affiliated Hospital of Guizhou University of Traditional Chinese Medicine, No. 83 Feishan Street, Yunyan District, Guiyang City, Guizhou Province, 550003, China
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Salazar-Petres ER, Sferruzzi-Perri AN. Pregnancy-induced changes in β-cell function: what are the key players? J Physiol 2021; 600:1089-1117. [PMID: 33704799 DOI: 10.1113/jp281082] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Accepted: 02/17/2021] [Indexed: 12/11/2022] Open
Abstract
Maternal metabolic adaptations during pregnancy ensure appropriate nutrient supply to the developing fetus. This is facilitated by reductions in maternal peripheral insulin sensitivity, which enables glucose to be available in the maternal circulation for transfer to the fetus for growth. To balance this process and avoid excessive hyperglycaemia and glucose intolerance in the mother during pregnancy, maternal pancreatic β-cells undergo remarkable changes in their function including increasing their proliferation and glucose-stimulated insulin secretion. In this review we examine how placental and maternal hormones work cooperatively to activate several signalling pathways, transcription factors and epigenetic regulators to drive adaptations in β-cell function during pregnancy. We also explore how adverse maternal environmental conditions, including malnutrition, obesity, circadian rhythm disruption and environmental pollutants, may impact the endocrine and molecular mechanisms controlling β-cell adaptations during pregnancy. The available data from human and experimental animal studies highlight the need to better understand how maternal β-cells integrate the various environmental, metabolic and endocrine cues and thereby determine appropriate β-cell adaptation during gestation. In doing so, these studies may identify targetable pathways that could be used to prevent not only the development of pregnancy complications like gestational diabetes that impact maternal and fetal wellbeing, but also more generally the pathogenesis of other metabolic conditions like type 2 diabetes.
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Affiliation(s)
- Esteban Roberto Salazar-Petres
- Centre for Trophoblast Research, Department of Physiology, Development and Neuroscience, University of Cambridge, Downing Street, Cambridge, CB2 3EG, UK
| | - Amanda Nancy Sferruzzi-Perri
- Centre for Trophoblast Research, Department of Physiology, Development and Neuroscience, University of Cambridge, Downing Street, Cambridge, CB2 3EG, UK
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28
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Generation of high yield insulin-producing cells (IPCs) from various sources of stem cells. VITAMINS AND HORMONES 2021; 116:235-268. [PMID: 33752820 DOI: 10.1016/bs.vh.2021.02.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Type 1 diabetes mellitus occurs when beta cell mass is reduced to less than 20% of the normal level due to immune system destruction of beta cell resulting in an inability to secrete enough insulin. The prevalence of diabetes is expanding according to the American Diabetes Association and the World Health Organization (WHO), foretold to exceed 350 million by 2030. The current treatment does not cure many of the serious complications associated with the disease such as neuropathy, nephropathy, dyslipidemia, retinopathy and cardiovascular disease. Whole pancreas or isolated pancreatic islet transplantation as an alternative therapy can prevent or reduce some of the complications of diabetes. However, the shortage of matched organ or islets cells donor and alloimmune responses limit this therapeutic strategy. Recently, several reports have raised extremely promising results to use different sources of stem cells to differentiate insulin-producing cells and focus on the expansion of these alternative sources. Stem cells, due to their potential for multiple differentiation and self-renewal can differentiate into all cell types, including insulin-producing cells (IPCs). Generation of new beta cells can be achieved from various stem cell sources, including embryonic stem cells (ESCs), adult stem cells, such as mesenchymal stem cells (MSCs) and induced pluripotent stem cells (iPSCs). Thus, this chapter discusses on the assistance of cellular reprogramming of various stem cells as candidates for the generation of IPCs using transcription factors/miRNA, cytokines/small molecules and tissue engineering.
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29
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Gesmundo I, Pardini B, Gargantini E, Gamba G, Birolo G, Fanciulli A, Banfi D, Congiusta N, Favaro E, Deregibus MC, Togliatto G, Zocaro G, Brizzi MF, Luque RM, Castaño JP, Bocchiotti MA, Arolfo S, Bruno S, Nano R, Morino M, Piemonti L, Ong H, Matullo G, Falcón-Pérez JM, Ghigo E, Camussi G, Granata R. Adipocyte-derived extracellular vesicles regulate survival and function of pancreatic β cells. JCI Insight 2021; 6:141962. [PMID: 33539327 PMCID: PMC8021102 DOI: 10.1172/jci.insight.141962] [Citation(s) in RCA: 60] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Accepted: 01/28/2021] [Indexed: 12/11/2022] Open
Abstract
Extracellular vesicles (EVs) are implicated in the crosstalk between adipocytes and other metabolic organs, and an altered biological cargo has been observed in EVs from human obese adipose tissue (AT). Yet, the role of adipocyte-derived EVs in pancreatic β cells remains to be determined. Here, we explored the effects of EVs released from adipocytes isolated from both rodents and humans and human AT explants on survival and function of pancreatic β cells and human pancreatic islets. EVs from healthy 3T3-L1 adipocytes increased survival and proliferation and promoted insulin secretion in INS-1E β cells and human pancreatic islets, both those untreated or exposed to cytokines or glucolipotoxicity, whereas EVs from inflamed adipocytes caused β cell death and dysfunction. Human lean adipocyte-derived EVs produced similar beneficial effects, whereas EVs from obese AT explants were harmful for human EndoC-βH3 β cells. We observed differential expression of miRNAs in EVs from healthy and inflamed adipocytes, as well as alteration in signaling pathways and expression of β cell genes, adipokines, and cytokines in recipient β cells. These in vitro results suggest that, depending on the physiopathological state of AT, adipocyte-derived EVs may influence β cell fate and function.
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Affiliation(s)
- Iacopo Gesmundo
- Division of Endocrinology, Diabetes and Metabolism, and.,Department of Medical Sciences, University of Turin, Turin, Italy
| | - Barbara Pardini
- Italian Institute for Genomic Medicine, Turin, Italy.,Candiolo Cancer Institute, FPO Istituto di Ricovero e Cura a Carattere Scientifico, Candiolo, Italy
| | - Eleonora Gargantini
- Division of Endocrinology, Diabetes and Metabolism, and.,Department of Medical Sciences, University of Turin, Turin, Italy
| | - Giacomo Gamba
- Division of Endocrinology, Diabetes and Metabolism, and.,Department of Medical Sciences, University of Turin, Turin, Italy
| | - Giovanni Birolo
- Department of Medical Sciences, University of Turin, Turin, Italy.,Italian Institute for Genomic Medicine, Turin, Italy
| | - Alessandro Fanciulli
- Division of Endocrinology, Diabetes and Metabolism, and.,Department of Medical Sciences, University of Turin, Turin, Italy
| | - Dana Banfi
- Division of Endocrinology, Diabetes and Metabolism, and.,Department of Medical Sciences, University of Turin, Turin, Italy
| | - Noemi Congiusta
- Division of Endocrinology, Diabetes and Metabolism, and.,Department of Medical Sciences, University of Turin, Turin, Italy
| | - Enrica Favaro
- Department of Medical Sciences, University of Turin, Turin, Italy
| | | | | | - Gaia Zocaro
- Department of Medical Sciences, University of Turin, Turin, Italy
| | - Maria Felice Brizzi
- Department of Medical Sciences, University of Turin, Turin, Italy.,Molecular Biotechnology Center, University of Turin, Turin, Italy
| | - Raul M Luque
- Maimonides Institute for Biomedical Research of Córdoba, Department of Cell Biology, Physiology and Immunology, University of Córdoba, and Reina Sofia University Hospital, Córdoba, Spain
| | - Justo P Castaño
- Maimonides Institute for Biomedical Research of Córdoba, Department of Cell Biology, Physiology and Immunology, University of Córdoba, and Reina Sofia University Hospital, Córdoba, Spain
| | | | - Simone Arolfo
- Department of Surgical Sciences, University of Turin, Turin, Italy
| | - Stefania Bruno
- Department of Medical Sciences, University of Turin, Turin, Italy
| | - Rita Nano
- Diabetes Research Institute, IRCCS San Raffaele Scientific Institute, and Vita-Salute San Raffaele University, Milan, Italy
| | - Mario Morino
- Department of Surgical Sciences, University of Turin, Turin, Italy
| | - Lorenzo Piemonti
- Diabetes Research Institute, IRCCS San Raffaele Scientific Institute, and Vita-Salute San Raffaele University, Milan, Italy
| | - Huy Ong
- Faculty of Pharmacy, University of Montréal, Montréal, Québec, Canada
| | - Giuseppe Matullo
- Department of Medical Sciences, University of Turin, Turin, Italy.,Italian Institute for Genomic Medicine, Turin, Italy
| | - Juan M Falcón-Pérez
- Exosomes Laboratory and.,Metabolomics Platform, CIC bioGUNE, Bizkaia Technology Park, Derio, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas, Madrid, Spain.,Ikerbasque, Basque Foundation for Science, Bilbao, Bizkaia, Spain
| | - Ezio Ghigo
- Division of Endocrinology, Diabetes and Metabolism, and.,Department of Medical Sciences, University of Turin, Turin, Italy
| | - Giovanni Camussi
- Department of Medical Sciences, University of Turin, Turin, Italy
| | - Riccarda Granata
- Division of Endocrinology, Diabetes and Metabolism, and.,Department of Medical Sciences, University of Turin, Turin, Italy
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Jo S, Xu G, Jing G, Chen J, Shalev A. Human Glucagon Expression Is under the Control of miR-320a. Endocrinology 2021; 162:6052618. [PMID: 33367814 PMCID: PMC7814302 DOI: 10.1210/endocr/bqaa238] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Indexed: 11/19/2022]
Abstract
Increased glucagon is a hallmark of diabetes and leads to worsening of the hyperglycemia, but the molecular mechanisms causing it are still unknown. We therefore investigated the possibility that microRNAs might be involved in the regulation of glucagon. Indeed, analysis of the glucagon 3' untranslated region (UTR) revealed potential binding sites for miR-320a, and using luciferase reporter assays we found that miR-320a directly targets the 3' UTRs of human and rodent glucagon. In addition, endogenous glucagon mRNA and protein expression as well as glucagon secretion were reduced in response to miR-320a overexpression, whereas inhibition of miR-320a upregulated glucagon expression. Interestingly, miR-320a expression was decreased by high glucose, and this was associated with an increase in glucagon expression in human islets and mouse αTC1-6 cells. Moreover, miR-320a overexpression completely blunted these effects. Importantly, miR-320a was also significantly downregulated in human islets of subjects with type 2 diabetes and this was accompanied by increased glucagon expression. Thus, our data suggest that glucose-induced downregulation of miR-320a may contribute to the paradoxical increase in glucagon observed in type 2 diabetes and reveal for the first time that glucagon expression is under the control by a microRNA providing novel insight into the abnormal regulation of glucagon in diabetes.
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Affiliation(s)
- SeongHo Jo
- Comprehensive Diabetes Center and Department of Medicine, Division of Endocrinology, Diabetes, and Metabolism, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Guanlan Xu
- Comprehensive Diabetes Center and Department of Medicine, Division of Endocrinology, Diabetes, and Metabolism, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Gu Jing
- Comprehensive Diabetes Center and Department of Medicine, Division of Endocrinology, Diabetes, and Metabolism, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Junqin Chen
- Comprehensive Diabetes Center and Department of Medicine, Division of Endocrinology, Diabetes, and Metabolism, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Anath Shalev
- Comprehensive Diabetes Center and Department of Medicine, Division of Endocrinology, Diabetes, and Metabolism, University of Alabama at Birmingham, Birmingham, AL, USA
- Correspondence: Anath Shalev, MD, Professor and Director, Comprehensive Diabetes Center, University of Alabama at Birmingham, 1825 University Blvd, SHELBY Bldg 1206, Birmingham, AL 35294-2182, USA.
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31
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Sabouri E, Rajabzadeh A, Enderami SE, Saburi E, Soleimanifar F, Barati G, Rahmati M, Khamisipour G, Enderami SE. The Role of MicroRNAs in the Induction of Pancreatic Differentiation. Curr Stem Cell Res Ther 2021; 16:145-154. [PMID: 32564764 DOI: 10.2174/1574888x15666200621173607] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2020] [Revised: 04/15/2020] [Accepted: 04/20/2020] [Indexed: 11/22/2022]
Abstract
Stem cell-based therapy is one of the therapeutic options with promising results in the treatment of diabetes. Stem cells from various sources are expanded and induced to generate the cells capable of secreting insulin. These insulin-producing cells [IPCs] could be used as an alternative to islets in the treatment of patients with diabetes. Soluble growth factors, small molecules, geneencoding transcription factors, and microRNAs [miRNAs] are commonly used for the induction of stem cell differentiation. MiRNAs are small non-coding RNAs with 21-23 nucleotides that are involved in the regulation of gene expression by targeting multiple mRNA targets. Studies have shown the dynamic expression of miRNAs during pancreatic development and stem cell differentiation. MiR- 7 and miR-375 are the most abundant miRNAs in pancreatic islet cells and play key roles in pancreatic development as well as islet cell functions. Some studies have tried to use these small RNAs for the induction of pancreatic differentiation. This review focuses on the miRNAs used in the induction of stem cells into IPCs and discusses their functions in pancreatic β-cells.
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Affiliation(s)
- Elham Sabouri
- Student Research Committee, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Alireza Rajabzadeh
- Applied Cell Sciences and Tissue Engineering Department, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Seyedeh Elnaz Enderami
- Department of Stem Cell and Regenerative Medicine, Institute of Medical Biotechnology, National Institute of Genetic Engineering and Biotechnology [NIGEB], Tehran, Iran
| | - Ehsan Saburi
- Medical Genetics and Molecular Medicine Department, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Fatemeh Soleimanifar
- Department of Medical Biotechnology, School of Medicine, Alborz University of Medical Sciences, Karaj, Iran
| | | | | | - Gholamreza Khamisipour
- Department of Hematology, School of Allied Medical Sciences, Bushehr University of Medical Sciences, Bushehr, Iran
| | - Seyed Ehsan Enderami
- Diabetes Research Center, Department of Medical Biotechnology, Faculty of Advanced Technologies in Medicine, Mazandaran University of Medical Sciences, Sari, Iran
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32
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Soltani A, Jafarian A, Allameh A. The Predominant microRNAs in β-cell Clusters for Insulin Regulation and Diabetic Control. Curr Drug Targets 2021; 21:722-734. [PMID: 31886749 DOI: 10.2174/1389450121666191230145848] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2019] [Revised: 12/04/2019] [Accepted: 12/04/2019] [Indexed: 12/20/2022]
Abstract
micro (mi)-RNAs are vital regulators of multiple processes including insulin signaling pathways and glucose metabolism. Pancreatic β-cells function is dependent on some miRNAs and their target mRNA, which together form a complex regulative network. Several miRNAs are known to be directly involved in β-cells functions such as insulin expression and secretion. These small RNAs may also play significant roles in the fate of β-cells such as proliferation, differentiation, survival and apoptosis. Among the miRNAs, miR-7, miR-9, miR-375, miR-130 and miR-124 are of particular interest due to being highly expressed in these cells. Under diabetic conditions, although no specific miRNA profile has been noticed, the expression of some miRNAs and their target mRNAs are altered by posttranscriptional mechanisms, exerting diverse signs in the pathobiology of various diabetic complications. The aim of this review article is to discuss miRNAs involved in the process of stem cells differentiation into β-cells, resulting in enhanced β-cell functions with respect to diabetic disorders. This paper will also look into the impact of miRNA expression patterns on in vitro proliferation and differentiation of β-cells. The efficacy of the computational genomics and biochemical analysis to link the changes in miRNA expression profiles of stem cell-derived β-cells to therapeutically relevant outputs will be discussed as well.
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Affiliation(s)
- Adele Soltani
- Department of Clinical Biochemistry, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Arefeh Jafarian
- Immunology, Asthma, and Allergy Research Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Abdolamir Allameh
- Department of Clinical Biochemistry, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
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33
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Grieco GE, Brusco N, Licata G, Fignani D, Formichi C, Nigi L, Sebastiani G, Dotta F. The Landscape of microRNAs in βCell: Between Phenotype Maintenance and Protection. Int J Mol Sci 2021; 22:ijms22020803. [PMID: 33466949 PMCID: PMC7830142 DOI: 10.3390/ijms22020803] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Revised: 01/11/2021] [Accepted: 01/12/2021] [Indexed: 12/19/2022] Open
Abstract
Diabetes mellitus is a group of heterogeneous metabolic disorders characterized by chronic hyperglycaemia mainly due to pancreatic β cell death and/or dysfunction, caused by several types of stress such as glucotoxicity, lipotoxicity and inflammation. Different patho-physiological mechanisms driving β cell response to these stresses are tightly regulated by microRNAs (miRNAs), a class of negative regulators of gene expression, involved in pathogenic mechanisms occurring in diabetes and in its complications. In this review, we aim to shed light on the most important miRNAs regulating the maintenance and the robustness of β cell identity, as well as on those miRNAs involved in the pathogenesis of the two main forms of diabetes mellitus, i.e., type 1 and type 2 diabetes. Additionally, we acknowledge that the understanding of miRNAs-regulated molecular mechanisms is fundamental in order to develop specific and effective strategies based on miRNAs as therapeutic targets, employing innovative molecules.
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Affiliation(s)
- Giuseppina Emanuela Grieco
- Diabetes Unit, Department of Medicine, Surgery and Neurosciences, University of Siena, 53100 Siena, Italy; (G.E.G.); (N.B.); (G.L.); (D.F.); (C.F.); (L.N.); (G.S.)
- Fondazione Umberto Di Mario, c/o Toscana Life Sciences, 53100 Siena, Italy
| | - Noemi Brusco
- Diabetes Unit, Department of Medicine, Surgery and Neurosciences, University of Siena, 53100 Siena, Italy; (G.E.G.); (N.B.); (G.L.); (D.F.); (C.F.); (L.N.); (G.S.)
- Fondazione Umberto Di Mario, c/o Toscana Life Sciences, 53100 Siena, Italy
| | - Giada Licata
- Diabetes Unit, Department of Medicine, Surgery and Neurosciences, University of Siena, 53100 Siena, Italy; (G.E.G.); (N.B.); (G.L.); (D.F.); (C.F.); (L.N.); (G.S.)
- Fondazione Umberto Di Mario, c/o Toscana Life Sciences, 53100 Siena, Italy
| | - Daniela Fignani
- Diabetes Unit, Department of Medicine, Surgery and Neurosciences, University of Siena, 53100 Siena, Italy; (G.E.G.); (N.B.); (G.L.); (D.F.); (C.F.); (L.N.); (G.S.)
- Fondazione Umberto Di Mario, c/o Toscana Life Sciences, 53100 Siena, Italy
| | - Caterina Formichi
- Diabetes Unit, Department of Medicine, Surgery and Neurosciences, University of Siena, 53100 Siena, Italy; (G.E.G.); (N.B.); (G.L.); (D.F.); (C.F.); (L.N.); (G.S.)
- Fondazione Umberto Di Mario, c/o Toscana Life Sciences, 53100 Siena, Italy
| | - Laura Nigi
- Diabetes Unit, Department of Medicine, Surgery and Neurosciences, University of Siena, 53100 Siena, Italy; (G.E.G.); (N.B.); (G.L.); (D.F.); (C.F.); (L.N.); (G.S.)
- Fondazione Umberto Di Mario, c/o Toscana Life Sciences, 53100 Siena, Italy
| | - Guido Sebastiani
- Diabetes Unit, Department of Medicine, Surgery and Neurosciences, University of Siena, 53100 Siena, Italy; (G.E.G.); (N.B.); (G.L.); (D.F.); (C.F.); (L.N.); (G.S.)
- Fondazione Umberto Di Mario, c/o Toscana Life Sciences, 53100 Siena, Italy
| | - Francesco Dotta
- Diabetes Unit, Department of Medicine, Surgery and Neurosciences, University of Siena, 53100 Siena, Italy; (G.E.G.); (N.B.); (G.L.); (D.F.); (C.F.); (L.N.); (G.S.)
- Fondazione Umberto Di Mario, c/o Toscana Life Sciences, 53100 Siena, Italy
- Tuscany Centre for Precision Medicine (CReMeP), 53100 Siena, Italy
- Correspondence: ; Tel.: +39-0577-231283
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Kim H, Kulkarni RN. Epigenetics in β-cell adaptation and type 2 diabetes. Curr Opin Pharmacol 2020; 55:125-131. [PMID: 33232934 DOI: 10.1016/j.coph.2020.10.008] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Revised: 09/29/2020] [Accepted: 10/09/2020] [Indexed: 02/06/2023]
Abstract
Healthy pancreatic β-cells adapt to systemic insulin resistance to maintain normal blood glucose levels, and a failure of this adaptation leads to type 2 diabetes in humans. While genome-wide association studies have uncovered genetic variants that are associated with type 2 diabetes, it is still insufficient to explain the high prevalence of this disease. Epigenetics is the study of gene expression changes that do not involve DNA sequence alterations such as DNA methylation, histone modification, and non-coding RNAs. Over the last decade, a large number of studies have reported on the role of epigenetics in β-cell biology. In this review, we summarize the epigenetic mechanisms in β-cell adaptation and type 2 diabetes, including alterations in three-dimensional chromatin structure and RNA modifications.
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Affiliation(s)
- Hyunki Kim
- Islet Cell and Regenerative Biology, Joslin Diabetes Center, Boston, MA, USA; Department of Medicine, Brigham and Women's Hospital, Boston, MA, USA; Harvard Stem Cell Institute, Harvard Medical School, Boston, MA, USA
| | - Rohit N Kulkarni
- Islet Cell and Regenerative Biology, Joslin Diabetes Center, Boston, MA, USA; Department of Medicine, Brigham and Women's Hospital, Boston, MA, USA; Harvard Stem Cell Institute, Harvard Medical School, Boston, MA, USA.
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Therapeutic Potentials of MicroRNAs for Curing Diabetes Through Pancreatic β-Cell Regeneration or Replacement. Pancreas 2020; 49:1131-1140. [PMID: 32852323 DOI: 10.1097/mpa.0000000000001655] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Abstract
MicroRNAs are a type of noncoding RNAs that regulates the expression of target genes at posttranscriptional level. MicroRNAs play essential roles in regulating the expression of different genes involved in pancreatic development, β-cell mass maintenance, and β-cell function. Alteration in the level of miRNAs involved in β-cell function leads to the diabetes. Being an epidemic, diabetes threatens the life of millions of patients posing a pressing demand for its urgent resolve. However, the currently available therapies are not substantial to cure the diabetic epidemic. Thus, researchers are trying to find new ways to replenish the β-cell mass in patients with diabetes. One promising approach is the in vivo regeneration of β-cell mass or increasing the efficiency of β-cell function. Another clinical strategy is the transplantation of in vitro developed β-like cells. Owing to their role in pancreatic β-cell development, maintenance, functioning and their involvement in diabetes, overexpression or attenuation of different miRNAs can cause β-cell regeneration in vivo or can direct the differentiation of various kinds of stem/progenitor cells to β-like cells in vitro. Here, we will summarize different strategies used by researchers to investigate the therapeutic potentials of miRNAs, with focus on miR-375, for curing diabetes through β-cell regeneration or replacement.
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36
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Cheng L, Zhou M, Zhang D, Chen B. Association of miR-146a polymorphism rs2910164 and type 2 diabetes risk: a meta-analysis. J Int Med Res 2020; 48:300060520931313. [PMID: 32812451 PMCID: PMC7441291 DOI: 10.1177/0300060520931313] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
OBJECTIVE Circulating miR-146a is aberrantly expressed in patients with type 2 diabetes (T2D), probably resulting from gene polymorphisms. However, the role of polymorphism rs2910164 in T2D pathogenesis remains controversial. Thus, we designed a meta-analysis to investigate the association between rs2910164 and T2D. METHODS PubMed and Embase were searched for eligible papers in English published through September 2, 2019. Random or fixed effect models were used to determine risk estimates according to heterogeneities. RESULTS Four studies, involving 2,069 patients and 1,950 controls, were included. Odds ratios (ORs) and 95% confidence intervals (95% CIs) were used to pool the effect size. The pooled ORs and 95% CIs were 1.501 (0.887-2.541), 1.102 (0.931-1.304), 1.276 (0.900-1.811), 1.204 (0.878-1.652), 1.238 (0.880-1.740), and 1.350 (0.904-2.016) under the homozygote, heterozygote (CG vs. GG and CC vs. CG), dominant, allele, and recessive models, respectively. Heterogeneity was detected in most genetic models, with subgroup analyses performed by ethnicity, genotyping method, and disease duration. The co-dominant model was determined to be the most appropriate genetic model. CONCLUSIONS Our findings suggested that polymorphism rs2910164 is not correlated with T2D susceptibility. However, the results should be interpreted with caution because of confounding factors.
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Affiliation(s)
- Liqing Cheng
- Department of Endocrinology and Metabolism, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing, China
| | - Min Zhou
- Department of Urology, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China
| | - Dongmei Zhang
- Department of Dermatology, Chongqing MyLike Plastic Surgery Hospital, Chongqing, China
| | - Bing Chen
- Department of Endocrinology and Metabolism, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing, China
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37
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Zhu Y, Sun Y, Zhou Y, Zhang Y, Zhang T, Li Y, You W, Chang X, Yuan L, Han X. MicroRNA-24 promotes pancreatic beta cells toward dedifferentiation to avoid endoplasmic reticulum stress-induced apoptosis. J Mol Cell Biol 2020; 11:747-760. [PMID: 30753517 PMCID: PMC6821228 DOI: 10.1093/jmcb/mjz004] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2018] [Revised: 11/02/2018] [Accepted: 02/06/2019] [Indexed: 12/23/2022] Open
Abstract
Current research indicates that beta cell loss in type 2 diabetes may be attributed to beta cell dedifferentiation rather than apoptosis; however, the mechanisms by which this occurs remain poorly understood. Our previous study demonstrated that elevation of microRNA-24 (miR-24) in a diabetic setting caused beta cell dysfunction and replicative deficiency. In this study, we focused on the role of miR-24 in beta cell apoptosis and dedifferentiation under endoplasmic reticulum (ER) stress conditions. We found that miR-24 overabundance protected beta cells from thapsigargin-induced apoptosis at the cost of accelerating the impairment of glucose-stimulated insulin secretion (GSIS) and enhancing the presence of dedifferentiation markers. Ingenuity® Pathway Analysis (IPA) revealed that elevation of miR-24 had an inhibitory effect on XBP1 and ATF4, which are downstream effectors of two key branches of ER stress, by inhibiting its direct target, Ire1α. Notably, elevated miR-24 initiated another pathway that targeted Mafa and decreased GSIS function in surviving beta cells, thus guiding their dedifferentiation under ER stress conditions. Our results demonstrated that the elevated miR-24, to the utmost extent, preserves beta cell mass by inhibiting apoptosis and inducing dedifferentiation. This study not only provides a novel mechanism by which miR-24 dominates beta cell turnover under persistent metabolic stress but also offers a therapeutic consideration for treating diabetes by inducing dedifferentiated beta cells to re-differentiation.
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Affiliation(s)
- Yunxia Zhu
- Key Laboratory of Human Functional Genomics of Jiangsu Province, Department of Biochemistry and Molecular Biology, Nanjing Medical University, Nanjing 210029, China
| | - Yi Sun
- Key Laboratory of Human Functional Genomics of Jiangsu Province, Department of Biochemistry and Molecular Biology, Nanjing Medical University, Nanjing 210029, China
| | - Yuncai Zhou
- Key Laboratory of Human Functional Genomics of Jiangsu Province, Department of Biochemistry and Molecular Biology, Nanjing Medical University, Nanjing 210029, China
| | - Yan Zhang
- Key Laboratory of Human Functional Genomics of Jiangsu Province, Department of Biochemistry and Molecular Biology, Nanjing Medical University, Nanjing 210029, China
| | - Tao Zhang
- Key Laboratory of Human Functional Genomics of Jiangsu Province, Department of Biochemistry and Molecular Biology, Nanjing Medical University, Nanjing 210029, China
| | - Yating Li
- Key Laboratory of Human Functional Genomics of Jiangsu Province, Department of Biochemistry and Molecular Biology, Nanjing Medical University, Nanjing 210029, China
| | - Weiyan You
- Key Laboratory of Human Functional Genomics of Jiangsu Province, Department of Biochemistry and Molecular Biology, Nanjing Medical University, Nanjing 210029, China
| | - Xiaoai Chang
- Key Laboratory of Human Functional Genomics of Jiangsu Province, Department of Biochemistry and Molecular Biology, Nanjing Medical University, Nanjing 210029, China
| | - Li Yuan
- Key Laboratory of Human Functional Genomics of Jiangsu Province, Department of Biochemistry and Molecular Biology, Nanjing Medical University, Nanjing 210029, China
| | - Xiao Han
- Key Laboratory of Human Functional Genomics of Jiangsu Province, Department of Biochemistry and Molecular Biology, Nanjing Medical University, Nanjing 210029, China
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Guay C, Jacovetti C, Bayazit MB, Brozzi F, Rodriguez-Trejo A, Wu K, Regazzi R. Roles of Noncoding RNAs in Islet Biology. Compr Physiol 2020; 10:893-932. [PMID: 32941685 DOI: 10.1002/cphy.c190032] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The discovery that most mammalian genome sequences are transcribed to ribonucleic acids (RNA) has revolutionized our understanding of the mechanisms governing key cellular processes and of the causes of human diseases, including diabetes mellitus. Pancreatic islet cells were found to contain thousands of noncoding RNAs (ncRNAs), including micro-RNAs (miRNAs), PIWI-associated RNAs, small nucleolar RNAs, tRNA-derived fragments, long non-coding RNAs, and circular RNAs. While the involvement of miRNAs in islet function and in the etiology of diabetes is now well documented, there is emerging evidence indicating that other classes of ncRNAs are also participating in different aspects of islet physiology. The aim of this article will be to provide a comprehensive and updated view of the studies carried out in human samples and rodent models over the past 15 years on the role of ncRNAs in the control of α- and β-cell development and function and to highlight the recent discoveries in the field. We not only describe the role of ncRNAs in the control of insulin and glucagon secretion but also address the contribution of these regulatory molecules in the proliferation and survival of islet cells under physiological and pathological conditions. It is now well established that most cells release part of their ncRNAs inside small extracellular vesicles, allowing the delivery of genetic material to neighboring or distantly located target cells. The role of these secreted RNAs in cell-to-cell communication between β-cells and other metabolic tissues as well as their potential use as diabetes biomarkers will be discussed. © 2020 American Physiological Society. Compr Physiol 10:893-932, 2020.
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Affiliation(s)
- Claudiane Guay
- Department of Fundamental Neurosciences, University of Lausanne, Lausanne, Switzerland.,Department of Biomedical Sciences, University of Lausanne, Lausanne, Switzerland
| | - Cécile Jacovetti
- Department of Fundamental Neurosciences, University of Lausanne, Lausanne, Switzerland.,Department of Biomedical Sciences, University of Lausanne, Lausanne, Switzerland
| | - Mustafa Bilal Bayazit
- Department of Fundamental Neurosciences, University of Lausanne, Lausanne, Switzerland.,Department of Biomedical Sciences, University of Lausanne, Lausanne, Switzerland
| | - Flora Brozzi
- Department of Fundamental Neurosciences, University of Lausanne, Lausanne, Switzerland.,Department of Biomedical Sciences, University of Lausanne, Lausanne, Switzerland
| | - Adriana Rodriguez-Trejo
- Department of Fundamental Neurosciences, University of Lausanne, Lausanne, Switzerland.,Department of Biomedical Sciences, University of Lausanne, Lausanne, Switzerland
| | - Kejing Wu
- Department of Fundamental Neurosciences, University of Lausanne, Lausanne, Switzerland.,Department of Biomedical Sciences, University of Lausanne, Lausanne, Switzerland
| | - Romano Regazzi
- Department of Fundamental Neurosciences, University of Lausanne, Lausanne, Switzerland.,Department of Biomedical Sciences, University of Lausanne, Lausanne, Switzerland
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Zhang C, Miyagishima KJ, Dong L, Rising A, Nimmagadda M, Liang G, Sharma R, Dejene R, Wang Y, Abu-Asab M, Qian H, Li Y, Kopera M, Maminishkis A, Martinez J, Miller S. Regulation of phagolysosomal activity by miR-204 critically influences structure and function of retinal pigment epithelium/retina. Hum Mol Genet 2020; 28:3355-3368. [PMID: 31332443 DOI: 10.1093/hmg/ddz171] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Revised: 07/04/2019] [Accepted: 07/09/2019] [Indexed: 12/13/2022] Open
Abstract
MicroRNA-204 (miR-204) is expressed in pulmonary, renal, mammary and eye tissue, and its reduction can result in multiple diseases including cancer. We first generated miR-204-/- mice to study the impact of miR-204 loss on retinal and retinal pigment epithelium (RPE) structure and function. The RPE is fundamentally important for maintaining the health and integrity of the retinal photoreceptors. miR-204-/- eyes evidenced areas of hyper-autofluorescence and defective photoreceptor digestion, along with increased microglia migration to the RPE. Migratory Iba1+ microglial cells were localized to the RPE apical surface where they participated in the phagocytosis of photoreceptor outer segments (POSs) and contributed to a persistent build-up of rhodopsin. These structural, molecular and cellular outcomes were accompanied by decreased light-evoked electrical responses from the retina and RPE. In parallel experiments, we suppressed miR-204 expression in primary cultures of human RPE using anti-miR-204. In vitro suppression of miR-204 in human RPE similarly showed abnormal POS clearance and altered expression of autophagy-related proteins and Rab22a, a regulator of endosome maturation. Together, these in vitro and in vivo experiments suggest that the normally high levels of miR-204 in RPE can mitigate disease onset by preventing generation of oxidative stress and inflammation originating from intracellular accumulation of undigested photoreactive POS lipids. More generally, these results implicate RPE miR-204-mediated regulation of autophagy and endolysosomal interaction as a critical determinant of normal RPE/retina structure and function.
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Affiliation(s)
- Congxiao Zhang
- Ophthalmic Genetics and Visual Function Branch, Section on Epithelial and Retinal Physiology and Disease, National Eye Institute, National Institutes of Health, Bethesda, MD USA
| | - Kiyoharu J Miyagishima
- Ophthalmic Genetics and Visual Function Branch, Section on Epithelial and Retinal Physiology and Disease, National Eye Institute, National Institutes of Health, Bethesda, MD USA
| | - Lijin Dong
- Genetic Engineering Facility, National Eye Institute, National Institutes of Health, Bethesda, MD, USA
| | - Aaron Rising
- Ophthalmic Genetics and Visual Function Branch, Unit on Ocular and Stem Cell Translational Research, National Eye Institute, National Institutes of Health, Bethesda, MD, USA
| | - Malika Nimmagadda
- Ophthalmic Genetics and Visual Function Branch, Unit on Ocular and Stem Cell Translational Research, National Eye Institute, National Institutes of Health, Bethesda, MD, USA
| | - Genqing Liang
- Ophthalmic Genetics and Visual Function Branch, Unit on Ocular and Stem Cell Translational Research, National Eye Institute, National Institutes of Health, Bethesda, MD, USA
| | - Ruchi Sharma
- Ophthalmic Genetics and Visual Function Branch, Unit on Ocular and Stem Cell Translational Research, National Eye Institute, National Institutes of Health, Bethesda, MD, USA
| | - Roba Dejene
- Ophthalmic Genetics and Visual Function Branch, Unit on Ocular and Stem Cell Translational Research, National Eye Institute, National Institutes of Health, Bethesda, MD, USA
| | - Yuan Wang
- Ophthalmic Genetics and Visual Function Branch, Section on Epithelial and Retinal Physiology and Disease, National Eye Institute, National Institutes of Health, Bethesda, MD USA
| | - Mones Abu-Asab
- Section of Histopathology, National Eye Institute, National Institutes of Health, Bethesda, MD, USA
| | - Haohua Qian
- Visual Function Core, National Eye Institute, National Institutes of Health, Bethesda, MD, USA
| | - Yichao Li
- Visual Function Core, National Eye Institute, National Institutes of Health, Bethesda, MD, USA
| | - Megan Kopera
- Genetic Engineering Facility, National Eye Institute, National Institutes of Health, Bethesda, MD, USA
| | - Arvydas Maminishkis
- Ophthalmic Genetics and Visual Function Branch, Section on Epithelial and Retinal Physiology and Disease, National Eye Institute, National Institutes of Health, Bethesda, MD USA
| | - Jennifer Martinez
- Inflammation and Autoimmunity, National Institute of Environmental Sciences, National Institutes of Health, Bethesda, MD, USA
| | - Sheldon Miller
- Ophthalmic Genetics and Visual Function Branch, Section on Epithelial and Retinal Physiology and Disease, National Eye Institute, National Institutes of Health, Bethesda, MD USA
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40
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Werneck-de-Castro JP, Blandino-Rosano M, Hilfiker-Kleiner D, Bernal-Mizrachi E. Glucose stimulates microRNA-199 expression in murine pancreatic β-cells. J Biol Chem 2020; 295:1261-1270. [PMID: 31882540 PMCID: PMC6996880 DOI: 10.1074/jbc.ra119.010356] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2019] [Revised: 12/12/2019] [Indexed: 12/15/2022] Open
Abstract
MicroRNA 199 (miR-199) negatively impacts pancreatic β-cell function and its expression is highly increased in islets from diabetic mice as well as in plasma of diabetic patients. Here we investigated how miR-199 expression is regulated in β-cells by assessing expression of miR-199 precursors (primiR-199a1, primiR-199a2, and primiR-199b) and mature miR-199 (miR-199-3p and miR-199-5p) and promoter transcriptional activity assays in mouse islets and mouse insulinoma cells (MIN6) under different stimuli. We found that mouse islets equally express miR-199-3p and miR-199-5p. However, the primiRNA expression levels differed; although primiR-199a1 expression was about 30% greater than that of primiR-199a2, primiR-199b is barely detected in islets. We observed a 2-fold increase in primiR-199a1 and primiR-199a2 mRNA levels in mouse islets cultured in 10 mm glucose compared with 5.5 mm glucose. Similar responses to glucose were observed in MIN6 cells. Exposure to 30 mm KCl to induce membrane depolarization and calcium influx increased expression of primiR-199a2 but not of primiR-199a1 in MIN6 cells, indicating that calcium influx was involved. Transcriptional activity studies in MIN6 cells also revealed that primiR-199a2 promoter activity was enhanced by glucose and reduced by 2-deoxy-D-glucose-induced starvation. KCl and the potassium channel blocker tolbutamide also stimulated primiR-199a2 promoter activity. Calcium channel blockade by nifedipine reduced primiR-199a2 promoter activity in MIN6 cells, and diazoxide-mediated calcium influx inhibition blunted glucose up-regulation of miR-199-3p in islets. In conclusion, we uncover that glucose acutely up-regulates miR-199 family expression in β-cells. Glucose metabolism and calcium influx are involved in primiR-199a2 expression but not primiR-199a1 expression.
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Affiliation(s)
- Joao Pedro Werneck-de-Castro
- Division of Endocrinology, Diabetes, and Metabolism, University of Miami, Miller School of Medicine, Miami, Florida 33136,Miami Veterans Affairs Health Care System, Miami, Florida 33136
| | - Manuel Blandino-Rosano
- Division of Endocrinology, Diabetes, and Metabolism, University of Miami, Miller School of Medicine, Miami, Florida 33136
| | | | - Ernesto Bernal-Mizrachi
- Division of Endocrinology, Diabetes, and Metabolism, University of Miami, Miller School of Medicine, Miami, Florida 33136 .,Miami Veterans Affairs Health Care System, Miami, Florida 33136
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41
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Ast J, Arvaniti A, Fine NHF, Nasteska D, Ashford FB, Stamataki Z, Koszegi Z, Bacon A, Jones BJ, Lucey MA, Sasaki S, Brierley DI, Hastoy B, Tomas A, D'Agostino G, Reimann F, Lynn FC, Reissaus CA, Linnemann AK, D'Este E, Calebiro D, Trapp S, Johnsson K, Podewin T, Broichhagen J, Hodson DJ. Super-resolution microscopy compatible fluorescent probes reveal endogenous glucagon-like peptide-1 receptor distribution and dynamics. Nat Commun 2020; 11:467. [PMID: 31980626 PMCID: PMC6981144 DOI: 10.1038/s41467-020-14309-w] [Citation(s) in RCA: 70] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2019] [Accepted: 12/27/2019] [Indexed: 12/25/2022] Open
Abstract
The glucagon-like peptide-1 receptor (GLP1R) is a class B G protein-coupled receptor (GPCR) involved in metabolism. Presently, its visualization is limited to genetic manipulation, antibody detection or the use of probes that stimulate receptor activation. Herein, we present LUXendin645, a far-red fluorescent GLP1R antagonistic peptide label. LUXendin645 produces intense and specific membrane labeling throughout live and fixed tissue. GLP1R signaling can additionally be evoked when the receptor is allosterically modulated in the presence of LUXendin645. Using LUXendin645 and LUXendin651, we describe islet, brain and hESC-derived β-like cell GLP1R expression patterns, reveal higher-order GLP1R organization including membrane nanodomains, and track single receptor subpopulations. We furthermore show that the LUXendin backbone can be optimized for intravital two-photon imaging by installing a red fluorophore. Thus, our super-resolution compatible labeling probes allow visualization of endogenous GLP1R, and provide insight into class B GPCR distribution and dynamics both in vitro and in vivo. Glucagon-like peptide-1 receptor is an important regulator of appetite and glucose homeostasis. Here the authors describe super-resolution microscopy and in vivo imaging compatible fluorescent probes, which reveal endogenous glucagon-like peptide-1 receptor distribution and dynamics in islets and brain.
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Affiliation(s)
- Julia Ast
- Institute of Metabolism and Systems Research (IMSR), and Centre of Membrane Proteins and Receptors (COMPARE), University of Birmingham, Birmingham, UK.,Centre for Endocrinology, Diabetes and Metabolism, Birmingham Health Partners, Birmingham, UK
| | - Anastasia Arvaniti
- Institute of Metabolism and Systems Research (IMSR), and Centre of Membrane Proteins and Receptors (COMPARE), University of Birmingham, Birmingham, UK.,Centre for Endocrinology, Diabetes and Metabolism, Birmingham Health Partners, Birmingham, UK
| | - Nicholas H F Fine
- Institute of Metabolism and Systems Research (IMSR), and Centre of Membrane Proteins and Receptors (COMPARE), University of Birmingham, Birmingham, UK.,Centre for Endocrinology, Diabetes and Metabolism, Birmingham Health Partners, Birmingham, UK
| | - Daniela Nasteska
- Institute of Metabolism and Systems Research (IMSR), and Centre of Membrane Proteins and Receptors (COMPARE), University of Birmingham, Birmingham, UK.,Centre for Endocrinology, Diabetes and Metabolism, Birmingham Health Partners, Birmingham, UK
| | - Fiona B Ashford
- Institute of Metabolism and Systems Research (IMSR), and Centre of Membrane Proteins and Receptors (COMPARE), University of Birmingham, Birmingham, UK.,Centre for Endocrinology, Diabetes and Metabolism, Birmingham Health Partners, Birmingham, UK
| | - Zania Stamataki
- Centre for Liver Research, College of Medical and Dental Sciences, Institute for Immunology and Immunotherapy, University of Birmingham, Birmingham, UK
| | - Zsombor Koszegi
- Institute of Metabolism and Systems Research (IMSR), and Centre of Membrane Proteins and Receptors (COMPARE), University of Birmingham, Birmingham, UK.,Centre for Endocrinology, Diabetes and Metabolism, Birmingham Health Partners, Birmingham, UK
| | - Andrea Bacon
- Genome Editing Facility, Technology Hub, University of Birmingham, Birmingham, UK
| | - Ben J Jones
- Division of Diabetes, Endocrinology and Metabolism, Section of Investigative Medicine, Imperial College London, London, UK
| | - Maria A Lucey
- Division of Diabetes, Endocrinology and Metabolism, Section of Investigative Medicine, Imperial College London, London, UK
| | - Shugo Sasaki
- Diabetes Research Group, BC Children's Hospital Research Institute, Vancouver, BC, Canada; Department of Surgery, University of British Columbia, Vancouver, BC, Canada
| | - Daniel I Brierley
- Centre for Cardiovascular and Metabolic Neuroscience, Department of Neuroscience, Physiology & Pharmacology, University College London, London, UK
| | - Benoit Hastoy
- Oxford Centre for Diabetes, Endocrinology & Metabolism, University of Oxford, Oxford, UK
| | - Alejandra Tomas
- Division of Diabetes, Endocrinology and Metabolism, Section of Cell Biology and Functional Genomics, Imperial College London, London, UK
| | - Giuseppe D'Agostino
- Faculty of Biology, Medicine and Health, University of Manchester, Oxford Road, Manchester, UK
| | - Frank Reimann
- Wellcome Trust-MRC Institute of Metabolic Science, University of Cambridge, Cambridge, UK
| | - Francis C Lynn
- Diabetes Research Group, BC Children's Hospital Research Institute, Vancouver, BC, Canada; Department of Surgery, University of British Columbia, Vancouver, BC, Canada
| | | | - Amelia K Linnemann
- Department of Pediatrics, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Elisa D'Este
- Optical Microscopy Facility, Max Planck Institute for Medical Research, Heidelberg, Germany
| | - Davide Calebiro
- Institute of Metabolism and Systems Research (IMSR), and Centre of Membrane Proteins and Receptors (COMPARE), University of Birmingham, Birmingham, UK.,Centre for Endocrinology, Diabetes and Metabolism, Birmingham Health Partners, Birmingham, UK
| | - Stefan Trapp
- Centre for Cardiovascular and Metabolic Neuroscience, Department of Neuroscience, Physiology & Pharmacology, University College London, London, UK
| | - Kai Johnsson
- Department of Chemical Biology, Max Planck Institute for Medical Research, Heidelberg, Germany
| | - Tom Podewin
- Department of Chemical Biology, Max Planck Institute for Medical Research, Heidelberg, Germany.
| | - Johannes Broichhagen
- Department of Chemical Biology, Max Planck Institute for Medical Research, Heidelberg, Germany.
| | - David J Hodson
- Institute of Metabolism and Systems Research (IMSR), and Centre of Membrane Proteins and Receptors (COMPARE), University of Birmingham, Birmingham, UK. .,Centre for Endocrinology, Diabetes and Metabolism, Birmingham Health Partners, Birmingham, UK.
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Zhao F, Liu X, Wang Z, Lang H, Zhang T, Wang R, Lin X, He D, Shi P, Pang X. Novel Mouse miRNA Chr13_novelMiR7354-5p Improves Bone-Marrow-Derived Mesenchymal Stem Cell Differentiation into Insulin-Producing Cells. MOLECULAR THERAPY-NUCLEIC ACIDS 2020; 19:1110-1122. [PMID: 32059337 PMCID: PMC7016162 DOI: 10.1016/j.omtn.2020.01.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/20/2019] [Revised: 12/22/2019] [Accepted: 01/02/2020] [Indexed: 12/18/2022]
Abstract
MicroRNAs (miRNAs) that play key roles in the generation of insulin-producing cells from stem cells provide a cell-based approach for insulin replacement therapy. In this study, we used next-generation sequencing to detect the miRNA expression profile of normal mouse pancreatic β cells, non-β cells, bone marrow mesenchymal stem cells (BM-MSCs), and adipose-derived stem cells (ADSCs) and determined relative miRNA expression levels in mouse pancreatic β cells. After the novel mouse miRNA candidates were identified using miRDeep 2.0, we found that Chr13_novelMiR7354-5p, a novel miRNA candidate, significantly promoted the differentiation of BM-MSCs into insulin-producing cells in vitro. Furthermore, Chr13_novelMiR7354-5p-transfected BM-MSCs reversed hyperglycemia in streptozotocin (STZ)-treated diabetic mice. In addition, bioinformatics analyses, a luciferase reporter assay, and western blotting demonstrated that Chr13_novelMiR7354-5p targeted Notch1 and Rbpj. Our results provide compelling evidence of the existence of 65 novel mouse miRNA candidates and present a new treatment strategy to generate insulin-producing cells from stem cells.
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Affiliation(s)
- Feng Zhao
- Department of Stem Cells and Regenerative Medicine, Shenyang Key Laboratory for Stem Cells and Regenerative Medicine, Key Laboratory of Cell Biology, Ministry of Public Health, and Key Laboratory of Medical Cell Biology, Ministry of Education, China Medical University, 77 Puhe Street, Shenbei New District, Shenyang City 110122, Liaoning Province, China
| | - Xiaoyu Liu
- Department of Obstetrics and Gynecology, Center for Assisted Reproduction, Shengjing Hospital of China Medical University, 39 Huaxiang Street, Tiexi District, Shenyang City 110022, Liaoning Province, China
| | - Zhe Wang
- Department of Pathology, Shengjing Hospital of China Medical University, 36 Sanhao Street, Heping District, Shenyang City 110004, Liaoning Province, China
| | - Hongxin Lang
- Department of Stem Cells and Regenerative Medicine, Shenyang Key Laboratory for Stem Cells and Regenerative Medicine, Key Laboratory of Cell Biology, Ministry of Public Health, and Key Laboratory of Medical Cell Biology, Ministry of Education, China Medical University, 77 Puhe Street, Shenbei New District, Shenyang City 110122, Liaoning Province, China
| | - Tao Zhang
- Department of Stem Cells and Regenerative Medicine, Shenyang Key Laboratory for Stem Cells and Regenerative Medicine, Key Laboratory of Cell Biology, Ministry of Public Health, and Key Laboratory of Medical Cell Biology, Ministry of Education, China Medical University, 77 Puhe Street, Shenbei New District, Shenyang City 110122, Liaoning Province, China
| | - Rui Wang
- Department of Stem Cells and Regenerative Medicine, Shenyang Key Laboratory for Stem Cells and Regenerative Medicine, Key Laboratory of Cell Biology, Ministry of Public Health, and Key Laboratory of Medical Cell Biology, Ministry of Education, China Medical University, 77 Puhe Street, Shenbei New District, Shenyang City 110122, Liaoning Province, China
| | - Xuewen Lin
- Department of Stem Cells and Regenerative Medicine, Shenyang Key Laboratory for Stem Cells and Regenerative Medicine, Key Laboratory of Cell Biology, Ministry of Public Health, and Key Laboratory of Medical Cell Biology, Ministry of Education, China Medical University, 77 Puhe Street, Shenbei New District, Shenyang City 110122, Liaoning Province, China
| | - Dan He
- Department of Stem Cells and Regenerative Medicine, Shenyang Key Laboratory for Stem Cells and Regenerative Medicine, Key Laboratory of Cell Biology, Ministry of Public Health, and Key Laboratory of Medical Cell Biology, Ministry of Education, China Medical University, 77 Puhe Street, Shenbei New District, Shenyang City 110122, Liaoning Province, China
| | - Ping Shi
- Shenyang Amnion Bioengineering and Technology R&D Center, 155-5 Chuangxin Street, Hunnan District, Shenyang City 110015, Liaoning Province, China
| | - Xining Pang
- Department of Stem Cells and Regenerative Medicine, Shenyang Key Laboratory for Stem Cells and Regenerative Medicine, Key Laboratory of Cell Biology, Ministry of Public Health, and Key Laboratory of Medical Cell Biology, Ministry of Education, China Medical University, 77 Puhe Street, Shenbei New District, Shenyang City 110122, Liaoning Province, China; Shenyang Amnion Bioengineering and Technology R&D Center, 155-5 Chuangxin Street, Hunnan District, Shenyang City 110015, Liaoning Province, China.
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Wan S, Zhang J, Chen X, Lang J, Li L, Chen F, Tian L, Meng Y, Yu X. MicroRNA-17-92 Regulates Beta-Cell Restoration After Streptozotocin Treatment. Front Endocrinol (Lausanne) 2020; 11:9. [PMID: 32038500 PMCID: PMC6989481 DOI: 10.3389/fendo.2020.00009] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Accepted: 01/07/2020] [Indexed: 02/05/2023] Open
Abstract
Objective: To clarify the role and mechanism of miR-17-92 cluster in islet beta-cell repair after streptozotocin intervention. Methods: Genetically engineered mice (miR-17-92βKO) and control RIP-Cre mice were intraperitoneally injected with multiple low dose streptozotocin. Body weight, random blood glucose (RBG), fasting blood glucose, and intraperitoneal glucose tolerance test (IPGTT) were monitored regularly. Mice were sacrificed for histological analysis 8 weeks later. Morphological changes of pancreas islets, quantity, quality, apoptosis, and proliferation of beta-cells were measured. Islets from four groups were isolated. MiRNA and mRNA were extracted and quantified. Results:MiR-17-92βKO mice showed dramatically elevated fasting blood glucose and impaired glucose tolerance after streptozotocin treatment in contrast to control mice, the reason of which is reduced beta-cell number and total mass resulting from reduced proliferation, enhanced apoptosis of beta-cells. Genes related to cell proliferation and insulin transcription repression were significantly elevated in miR-17-92βKO mice treated with streptozotocin. Furthermore, genes involved in DNA biosynthesis and damage repair were dramatically increased in miR-17-92βKO mice with streptozotocin treatment. Conclusion: Collectively, our results demonstrate that homozygous deletion of miR-17-92 cluster in mouse pancreatic beta-cells promotes the development of experimental diabetes, indicating that miR-17-92 cluster may be positively related to beta-cells restoration and adaptation after streptozotocin-induced damage.
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Affiliation(s)
- Shan Wan
- Laboratory of Endocrinology and Metabolism, Department of Endocrinology, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, China
| | - Jie Zhang
- Histology and Imaging Platform, Core Facility of West China Hospital, Sichuan University, Chengdu, China
| | - Xiang Chen
- Laboratory of Endocrinology and Metabolism, Department of Endocrinology, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, China
| | - Jiangli Lang
- Laboratory of Endocrinology and Metabolism, Department of Endocrinology, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, China
| | - Li Li
- Histology and Imaging Platform, Core Facility of West China Hospital, Sichuan University, Chengdu, China
| | - Fei Chen
- Histology and Imaging Platform, Core Facility of West China Hospital, Sichuan University, Chengdu, China
| | - Li Tian
- Laboratory of Endocrinology and Metabolism, Department of Endocrinology, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, China
| | - Yang Meng
- Laboratory of Endocrinology and Metabolism, Department of Endocrinology, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, China
- Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, China
| | - Xijie Yu
- Laboratory of Endocrinology and Metabolism, Department of Endocrinology, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, China
- *Correspondence: Xijie Yu ;
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Werneck-de-Castro JP, Blandino-Rosano M, Hilfiker-Kleiner D, Bernal-Mizrachi E. Glucose stimulates microRNA-199 expression in murine pancreatic β-cells. J Biol Chem 2020. [DOI: 10.1016/s0021-9258(17)49884-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
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Fan L, Shan A, Su Y, Cheng Y, Ji H, Yang Q, Lei Y, Liu B, Wang W, Ning G, Cao Y, Jiang X. MiR-221/222 Inhibit Insulin Production of Pancreatic β-Cells in Mice. Endocrinology 2020; 161:5639771. [PMID: 31761936 DOI: 10.1210/endocr/bqz027] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Accepted: 11/23/2019] [Indexed: 11/19/2022]
Abstract
Microribonucleic acids (miRNAs) are essential for the regulation of development, proliferation, and functions of pancreatic β-cells. The conserved miR-221/222 cluster is an important regulator in multiple cellular processes. Here we investigated the functional role of miR-221/222 in the regulation of β-cell proliferation and functions in transgenic mouse models. We generated 2 pancreatic β-cell-specific-miR-221/222 transgenic mouse models on a C57BL/6J background. The glucose metabolic phenotypes, β-cell mass, and β-cell functions were analyzed in the mouse models. Adenovirus-mediated overexpression of miR-221/222 was performed on β-cells and mouse insulinoma 6 (MIN6) cells to explore the effect and mechanisms of miR-221/222 on β-cell proliferation and functions. Luciferase reporter assay, histological analysis, and quantitative polymerase chain reaction (PCR) were carried out to study the direct target genes of miR-221/222 in β-cells. The expression of miR-221/222 was significantly upregulated in β-cells from the high-fat diet (HFD)-fed mice and db/db mice. Overexpression of miR-221/222 impaired the insulin production and secretion of β-cells and resulted in glucose intolerance in vivo. The β-cell mass and proliferation were increased by miR-221/222 expression via Cdkn1b and Cdkn1c. MiR-221/222 repressed insulin transcription activity through targeting Nfatc3 and lead to reduction of insulin in β-cells. Our findings demonstrate that miR-221/222 are important regulators of β-cell proliferation and insulin production. The expression of miR-221/222 in β-cells could regulate glucose metabolism in physiological and pathological processes.
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Affiliation(s)
- Liwen Fan
- National Clinical Research Centre for Endocrine and Metabolic Diseases, Shanghai Clinical Center for Endocrine and Metabolic Diseases, Shanghai Key Laboratory for Endocrine Tumors, Rui-Jin Hospital, Shanghai Jiao-Tong University School of Medicine, Shanghai, China
| | - Aijing Shan
- National Clinical Research Centre for Endocrine and Metabolic Diseases, Shanghai Clinical Center for Endocrine and Metabolic Diseases, Shanghai Key Laboratory for Endocrine Tumors, Rui-Jin Hospital, Shanghai Jiao-Tong University School of Medicine, Shanghai, China
| | - Yutong Su
- National Clinical Research Centre for Endocrine and Metabolic Diseases, Shanghai Clinical Center for Endocrine and Metabolic Diseases, Shanghai Key Laboratory for Endocrine Tumors, Rui-Jin Hospital, Shanghai Jiao-Tong University School of Medicine, Shanghai, China
| | - Yulong Cheng
- National Clinical Research Centre for Endocrine and Metabolic Diseases, Shanghai Clinical Center for Endocrine and Metabolic Diseases, Shanghai Key Laboratory for Endocrine Tumors, Rui-Jin Hospital, Shanghai Jiao-Tong University School of Medicine, Shanghai, China
| | - He Ji
- National Clinical Research Centre for Endocrine and Metabolic Diseases, Shanghai Clinical Center for Endocrine and Metabolic Diseases, Shanghai Key Laboratory for Endocrine Tumors, Rui-Jin Hospital, Shanghai Jiao-Tong University School of Medicine, Shanghai, China
| | - Qi Yang
- National Clinical Research Centre for Endocrine and Metabolic Diseases, Shanghai Clinical Center for Endocrine and Metabolic Diseases, Shanghai Key Laboratory for Endocrine Tumors, Rui-Jin Hospital, Shanghai Jiao-Tong University School of Medicine, Shanghai, China
| | - Ying Lei
- National Clinical Research Centre for Endocrine and Metabolic Diseases, Shanghai Clinical Center for Endocrine and Metabolic Diseases, Shanghai Key Laboratory for Endocrine Tumors, Rui-Jin Hospital, Shanghai Jiao-Tong University School of Medicine, Shanghai, China
| | - Bei Liu
- National Clinical Research Centre for Endocrine and Metabolic Diseases, Shanghai Clinical Center for Endocrine and Metabolic Diseases, Shanghai Key Laboratory for Endocrine Tumors, Rui-Jin Hospital, Shanghai Jiao-Tong University School of Medicine, Shanghai, China
| | - Weiqing Wang
- National Clinical Research Centre for Endocrine and Metabolic Diseases, Shanghai Clinical Center for Endocrine and Metabolic Diseases, Shanghai Key Laboratory for Endocrine Tumors, Rui-Jin Hospital, Shanghai Jiao-Tong University School of Medicine, Shanghai, China
| | - Guang Ning
- National Clinical Research Centre for Endocrine and Metabolic Diseases, Shanghai Clinical Center for Endocrine and Metabolic Diseases, Shanghai Key Laboratory for Endocrine Tumors, Rui-Jin Hospital, Shanghai Jiao-Tong University School of Medicine, Shanghai, China
| | - Yanan Cao
- National Clinical Research Centre for Endocrine and Metabolic Diseases, Shanghai Clinical Center for Endocrine and Metabolic Diseases, Shanghai Key Laboratory for Endocrine Tumors, Rui-Jin Hospital, Shanghai Jiao-Tong University School of Medicine, Shanghai, China
| | - Xiuli Jiang
- National Clinical Research Centre for Endocrine and Metabolic Diseases, Shanghai Clinical Center for Endocrine and Metabolic Diseases, Shanghai Key Laboratory for Endocrine Tumors, Rui-Jin Hospital, Shanghai Jiao-Tong University School of Medicine, Shanghai, China
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Joshi A, Azuma R, Akumuo R, Goetzl L, Pinney SE. Gestational diabetes and maternal obesity are associated with sex-specific changes in miRNA and target gene expression in the fetus. Int J Obes (Lond) 2019; 44:1497-1507. [PMID: 31852997 PMCID: PMC7299738 DOI: 10.1038/s41366-019-0485-y] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/10/2019] [Revised: 10/14/2019] [Accepted: 10/31/2019] [Indexed: 12/11/2022]
Abstract
Background/Objective Pregnancies complicated by gestational diabetes (GDM) or maternal
obesity have been linked to the development of diabetes, obesity and fatty
liver disease later in life with sex-specific manifestations. Alterations in
miRNA expression in offspring exposed to GDM and maternal obesity and
effects on hepatic development are unknown. Here we describe how exposure to
maternal obesity in utero leads to sex-specific changes in
miRNA and target gene expression in human fetal liver. Methods Candidate miRNA expression was measured in 2nd trimester
amniotic fluid (AF) from women with GDM. Targets of differentially expressed
miRNAs were determined and pathway enrichment of target genes was performed.
MiRNA and target gene expression were measured in a separate cohort of
2nd trimester primary human fetal hepatocytes (PHFH) exposed
to maternal obesity via QPCR and western blot. All studies were IRB
approved. Results GDM exposed AF had significant increases in miRNAs 199a-3p, 503-5p,
and 1268a (fold change (FC) ≥1.5, p<0.05). Female offspring
specific analysis showed enrichment in miRNAs 378a-3p, 885-5p, and 7-1-3p
(p<0.05). MiRNA gene targets were enriched in hepatic pathways. Key
genes regulating de novo lipogenesis were upregulated in
obesity exposed PHFH, especially in males. Significantly altered miRNAs in
GDM AF were measured in obese exposed PHFH, with consistent increases in
miRNAs 885-5p, 199-3p, 503-5p, 1268a and 7-1-3p (FC ≥1.5,
p<0.05). Female PHFH exposed to maternal obesity had increased
expression of miR-885-5p, miR-199-3p, miR-503-5p, miR-1268s and miR-7-1-3p,
(p<0.05), corresponding to decreased target genes expression for
ABCA1, PAK4 and INSR.
In male PHFHs, no miRNA changes were measured but there was increased
expression of ABCA1, PAK4, and
INSR (p<0.05). Conclusion Our data suggest sex-specific changes in miRNA and gene expression in
PHFH may be one mechanism contributing to the sexual dimorphism of metabolic
disease in offspring exposed to GDM and maternal obesity in
utero.
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Affiliation(s)
- Apoorva Joshi
- Division of Endocrinology and Diabetes, Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Rikka Azuma
- Division of Endocrinology and Diabetes, Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Rita Akumuo
- Division of Endocrinology and Diabetes, Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Laura Goetzl
- Department of Obstetrics, Gynecology and Reproductive Sciences, McGovern School of Medicine, University of Texas, Health Sciences Center at Houston, Houston, TX, USA
| | - Sara E Pinney
- Division of Endocrinology and Diabetes, Children's Hospital of Philadelphia, Philadelphia, PA, USA. .,Department of Pediatrics, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA. .,Center for Research in Reproduction and Women's Health, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA. .,Center of Excellence in Environmental Toxicology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA.
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Ljepoja B, Schreiber C, Gegenfurtner FA, García-Roman J, Köhler B, Zahler S, Rädler JO, Wagner E, Roidl A. Inducible microRNA-200c decreases motility of breast cancer cells and reduces filamin A. PLoS One 2019; 14:e0224314. [PMID: 31747409 PMCID: PMC6867627 DOI: 10.1371/journal.pone.0224314] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2019] [Accepted: 10/10/2019] [Indexed: 12/14/2022] Open
Abstract
Cancer progression and metastases are frequently related to changes of cell motility. Amongst others, the microRNA-200c (miR-200c) was shown to maintain the epithelial state of cells and to hamper migration. Here, we describe two miR-200c inducible breast cancer cell lines, derived from miR-200c knock-out MCF7 cells as well as from the miR-200c-negative MDA-MB-231 cells and report on the emerging phenotypic effects after miR-200s induction. The induction of miR-200c expression seems to effect a rapid reduction of cell motility, as determined by 1D microlane migration assays. Sustained expression of miR200c leads to a changed morphology and reveals a novel mechanism by which miR-200c interferes with cytoskeletal components. We find that filamin A expression is attenuated by miRNA-200c induced downregulation of the transcription factors c-Jun and MRTF/SRF. This potentially novel pathway that is independent of the prominent ZEB axis could lead to a broader understanding of the role that miR200c plays in cancer metastasis.
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Affiliation(s)
- Bojan Ljepoja
- Pharmaceutical Biotechnology, Department of Pharmacy, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Christoph Schreiber
- Faculty of Physics and Center for NanoScience, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Florian A. Gegenfurtner
- Pharmaceutical Biology, Department of Pharmacy, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Jonathan García-Roman
- Pharmaceutical Biotechnology, Department of Pharmacy, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Bianca Köhler
- Pharmaceutical Biotechnology, Department of Pharmacy, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Stefan Zahler
- Pharmaceutical Biology, Department of Pharmacy, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Joachim O. Rädler
- Faculty of Physics and Center for NanoScience, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Ernst Wagner
- Pharmaceutical Biotechnology, Department of Pharmacy, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Andreas Roidl
- Pharmaceutical Biotechnology, Department of Pharmacy, Ludwig-Maximilians-Universität München, Munich, Germany
- * E-mail:
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Zhao H, Tao S. MiRNA-221 protects islet β cell function in gestational diabetes mellitus by targeting PAK1. Biochem Biophys Res Commun 2019; 520:218-224. [PMID: 31587871 DOI: 10.1016/j.bbrc.2019.09.139] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2019] [Accepted: 09/30/2019] [Indexed: 12/24/2022]
Abstract
To elucidate the potential function of miRNA-221 in gestational diabetes mellitus (GDM) and the underlying mechanism. MiRNA-221 level was analyzed in the microarray containing placental tissues of GDM rats. After constructing GDM model in rats, miRNA-221 level in placental tissues of GDM rats or controls was determined as well. The relationship between miRNA-221 level and blood glucose in GDM rats was analyzed by Spearman correlation test. Regulatory effects of miRNA-221 on proliferation, apoptosis and insulin secretion in INS-1 cells were assessed. Through dual-luciferase reporter gene assay, the direct target of miRNA-221, PAK1 was identified. At last, potential influences of miRNA-221/PAK1 axis on INS-1 cell phenotypes were determined. MiRNA-221 was downregulated in placental tissues of GDM rats, and its level was negatively correlated to that of blood glucose level in GDM rats. Overexpression of miRNA-221 stimulated insulin secretion, cell proliferation and suppressed apoptosis in INS-1 cells. Knockdown of miRNA-221 achieved the opposite results. PAK1 was proved as the direct target of miRNA-221. Notably, PAK1 was able to reverse regulatory effects of miRNA-221 on INS-1 cell phenotypes. MiRNA-221 regulates proliferation, apoptosis and insulin secretion in islet β cells through targeting PAK1, thus protecting GDM-induced islet dysfunction.
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Affiliation(s)
- Hongqiang Zhao
- Department of Gerontology, Jinan People's Hospital of Shandong Province, Jinan, China.
| | - Shujuan Tao
- Department of Obstetrics, Jinan Second Maternal and Child Health Hospital of Shandong Province, Jinan, China
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Xu G, Thielen LA, Chen J, Grayson TB, Grimes T, Bridges SL, Tse HM, Smith B, Patel R, Li P, Evans-Molina C, Ovalle F, Shalev A. Serum miR-204 is an early biomarker of type 1 diabetes-associated pancreatic beta-cell loss. Am J Physiol Endocrinol Metab 2019; 317:E723-E730. [PMID: 31408375 PMCID: PMC6842918 DOI: 10.1152/ajpendo.00122.2019] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Pancreatic beta-cell death is a major factor in the pathogenesis of type 1 diabetes (T1D), but straightforward methods to measure beta-cell loss in humans are lacking, underlining the need for novel biomarkers. Using studies in INS-1 cells, human islets, diabetic mice, and serum samples of subjects with T1D at different stages, we have identified serum miR-204 as an early biomarker of T1D-associated beta-cell loss in humans. MiR-204 is a highly enriched microRNA in human beta-cells, and we found that it is released from dying beta-cells and detectable in human serum. We further discovered that serum miR-204 was elevated in children and adults with T1D and in autoantibody-positive at-risk subjects but not in type 2 diabetes or other autoimmune diseases and was inversely correlated with remaining beta-cell function in recent-onset T1D. Thus, serum miR-204 may provide a much needed novel approach to assess early T1D-associated human beta-cell loss even before onset of overt disease.
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Affiliation(s)
- Guanlan Xu
- Comprehensive Diabetes Center, University of Alabama at Birmingham, Birmingham, Alabama
- Division of Endocrinology, Diabetes and Metabolism, Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama
| | - Lance A Thielen
- Comprehensive Diabetes Center, University of Alabama at Birmingham, Birmingham, Alabama
| | - Junqin Chen
- Comprehensive Diabetes Center, University of Alabama at Birmingham, Birmingham, Alabama
- Division of Endocrinology, Diabetes and Metabolism, Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama
| | - Truman B Grayson
- Comprehensive Diabetes Center, University of Alabama at Birmingham, Birmingham, Alabama
| | - Tiffany Grimes
- Comprehensive Diabetes Center, University of Alabama at Birmingham, Birmingham, Alabama
- Division of Endocrinology, Diabetes and Metabolism, Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama
| | - S Louis Bridges
- Comprehensive Diabetes Center, University of Alabama at Birmingham, Birmingham, Alabama
- Division of Clinical Immunology and Rheumatology, University of Alabama at Birmingham, Birmingham, Alabama
| | - Hubert M Tse
- Comprehensive Diabetes Center, University of Alabama at Birmingham, Birmingham, Alabama
- Department of Microbiology, University of Alabama at Birmingham, Birmingham, Alabama
| | - Blair Smith
- Department of Surgery, University of Alabama at Birmingham, Birmingham, Alabama
| | - Rakesh Patel
- Comprehensive Diabetes Center, University of Alabama at Birmingham, Birmingham, Alabama
- Department of Pathology, University of Alabama at Birmingham, Birmingham, Alabama
| | - Peng Li
- Department of Biostatistics, University of Alabama at Birmingham, Birmingham, Alabama
| | - Carmella Evans-Molina
- Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana
| | - Fernando Ovalle
- Comprehensive Diabetes Center, University of Alabama at Birmingham, Birmingham, Alabama
- Division of Endocrinology, Diabetes and Metabolism, Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama
| | - Anath Shalev
- Comprehensive Diabetes Center, University of Alabama at Birmingham, Birmingham, Alabama
- Division of Endocrinology, Diabetes and Metabolism, Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama
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Yang L, Zhu Y, Kong D, Gong J, Yu W, Liang Y, Nie Y, Teng CB. EGF suppresses the expression of miR-124a in pancreatic β cell lines via ETS2 activation through the MEK and PI3K signaling pathways. Int J Biol Sci 2019; 15:2561-2575. [PMID: 31754329 PMCID: PMC6854373 DOI: 10.7150/ijbs.34985] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Accepted: 08/11/2019] [Indexed: 12/11/2022] Open
Abstract
Diabetes mellitus is characterized by pancreatic β cell dysfunction. Previous studies have indicated that epidermal growth factor (EGF) and microRNA-124a (miR-124a) play opposite roles in insulin biosynthesis and secretion by beta cells. However, the underlying mechanisms remain poorly understood. In the present study, we demonstrated that EGF could inhibit miR-124a expression in beta cell lines through downstream signaling pathways, including mitogen-activated protein kinase kinase (MEK) and phosphatidylinositol 3-kinase (PI3K) cascades. Further, the transcription factor ETS2, a member of the ETS (E26 transformation-specific) family, was identified to be responsible for the EGF-mediated suppression of miR-124a expression, which was dependent on ETS2 phosphorylation at threonine 72. Activation of ETS2 decreased miR-124a promoter transcriptional activity through the putative conserved binding sites AGGAANA/TN in three miR-124a promoters located in different chromosomes. Of note, ETS2 played a positive role in regulating beta cell function-related genes, including miR-124a targets, Forkhead box a2 (FOXA2) and Neurogenic differentiation 1 (NEUROD1), which may have partly been through the inhibition of miR-124 expression. Knockdown and overexpression of ETS2 led to the prevention and promotion of insulin biosynthesis respectively, while barely affecting the secretion ability. These results suggest that EGF may induce the activation of ETS2 to inhibit miR-124a expression to maintain proper beta cell functions and that ETS2, as a novel regulator of insulin production, is a potential therapeutic target for diabetes mellitus treatment.
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Affiliation(s)
- Lin Yang
- College of Life Science, Northeast Forestry University, Harbin, China
| | - Yuansen Zhu
- College of Life Science, Northeast Forestry University, Harbin, China
| | - Delin Kong
- College of Life Science, Northeast Forestry University, Harbin, China
| | - Jiawei Gong
- College of Life Science, Northeast Forestry University, Harbin, China
| | - Wen Yu
- College of Life Science, Northeast Forestry University, Harbin, China
| | - Yang Liang
- College of Life Science, Northeast Forestry University, Harbin, China
| | - Yuzhe Nie
- College of Life Science, Northeast Forestry University, Harbin, China
| | - Chun-Bo Teng
- College of Life Science, Northeast Forestry University, Harbin, China
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