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Sun WX, Shu YP, Yang XY, Huang W, Chen J, Yu NN, Zhao M. Effects of folic acid supplementation in pregnant mice on glucose metabolism disorders in male offspring induced by lipopolysaccharide exposure during pregnancy. Sci Rep 2023; 13:7984. [PMID: 37198280 DOI: 10.1038/s41598-023-31690-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Accepted: 03/15/2023] [Indexed: 05/19/2023] Open
Abstract
The DOHaD theory suggests that adverse environmental factors in early life may lead to the development of metabolic diseases including diabetes and hypertension in adult offspring through epigenetic mechanisms such as DNA methylation. Folic acid (FA) is an important methyl donor in vivo and participates in DNA replication and methylation. The preliminary experimental results of our group demonstrated that lipopolysaccharide (LPS, 50 µg/kg/d) exposure during pregnancy could lead to glucose metabolism disorders in male offspring, but not female offspring; however, the effect of folic acid supplementation on glucose metabolism disorders in male offspring induced by LPS exposure remains unclear. Therefore, in this study, pregnant mice were exposed to LPS on gestational day (GD) 15-17 and were given three doses of FA supplementation (2 mg/kg, 5 mg/kg, or 40 mg/kg) from mating to lactation to explore its effect on glucose metabolism in male offspring and the potential mechanism. This study confirmed that FA supplementation of 5 mg/kg in pregnant mice improved glucose metabolism in LPS-exposed offspring during pregnancy by regulating gene expression.
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Affiliation(s)
- Wan-Xiao Sun
- Department of Basic Nursing, School of Nursing, Anhui Medical University, 81 Meishan Road, Hefei, 230032, Anhui, China
- Anhui Medical College, Hefei, 230601, Anhui, China
| | - Yi-Ping Shu
- Department of Basic Nursing, School of Nursing, Anhui Medical University, 81 Meishan Road, Hefei, 230032, Anhui, China
- The First Affiliated Hospital of Anhui Medical University, Hefei, 230601, Anhui, China
| | - Xin-Yu Yang
- Department of Basic Nursing, School of Nursing, Anhui Medical University, 81 Meishan Road, Hefei, 230032, Anhui, China
| | - Wei Huang
- Department of Basic Nursing, School of Nursing, Anhui Medical University, 81 Meishan Road, Hefei, 230032, Anhui, China
| | - Jing Chen
- Department of Basic Nursing, School of Nursing, Anhui Medical University, 81 Meishan Road, Hefei, 230032, Anhui, China
- Anhui Provincial Hospital, Hefei, 230022, Anhui, China
| | - Ning-Ning Yu
- Department of Basic Nursing, School of Nursing, Anhui Medical University, 81 Meishan Road, Hefei, 230032, Anhui, China
- The First Affiliated Hospital of Anhui Medical University, Hefei, 230601, Anhui, China
| | - Mei Zhao
- Department of Basic Nursing, School of Nursing, Anhui Medical University, 81 Meishan Road, Hefei, 230032, Anhui, China.
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Bohuslavova R, Fabriciova V, Lebrón-Mora L, Malfatti J, Smolik O, Valihrach L, Benesova S, Zucha D, Berkova Z, Saudek F, Evans SM, Pavlinkova G. ISL1 controls pancreatic alpha cell fate and beta cell maturation. Cell Biosci 2023; 13:53. [PMID: 36899442 PMCID: PMC9999528 DOI: 10.1186/s13578-023-01003-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Accepted: 03/01/2023] [Indexed: 03/12/2023] Open
Abstract
BACKGROUND Glucose homeostasis is dependent on functional pancreatic α and ß cells. The mechanisms underlying the generation and maturation of these endocrine cells remain unclear. RESULTS We unravel the molecular mode of action of ISL1 in controlling α cell fate and the formation of functional ß cells in the pancreas. By combining transgenic mouse models, transcriptomic and epigenomic profiling, we uncover that elimination of Isl1 results in a diabetic phenotype with a complete loss of α cells, disrupted pancreatic islet architecture, downregulation of key ß-cell regulators and maturation markers of ß cells, and an enrichment in an intermediate endocrine progenitor transcriptomic profile. CONCLUSIONS Mechanistically, apart from the altered transcriptome of pancreatic endocrine cells, Isl1 elimination results in altered silencing H3K27me3 histone modifications in the promoter regions of genes that are essential for endocrine cell differentiation. Our results thus show that ISL1 transcriptionally and epigenetically controls α cell fate competence, and ß cell maturation, suggesting that ISL1 is a critical component for generating functional α and ß cells.
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Affiliation(s)
- Romana Bohuslavova
- Laboratory of Molecular Pathogenetics, Institute of Biotechnology CAS, 25250, Vestec, Czechia.
| | - Valeria Fabriciova
- Laboratory of Molecular Pathogenetics, Institute of Biotechnology CAS, 25250, Vestec, Czechia
| | - Laura Lebrón-Mora
- Laboratory of Molecular Pathogenetics, Institute of Biotechnology CAS, 25250, Vestec, Czechia
| | - Jessica Malfatti
- Laboratory of Molecular Pathogenetics, Institute of Biotechnology CAS, 25250, Vestec, Czechia
| | - Ondrej Smolik
- Laboratory of Molecular Pathogenetics, Institute of Biotechnology CAS, 25250, Vestec, Czechia
| | - Lukas Valihrach
- Laboratory of Gene Expression, Institute of Biotechnology CAS, 25250, Vestec, Czechia
| | - Sarka Benesova
- Laboratory of Gene Expression, Institute of Biotechnology CAS, 25250, Vestec, Czechia
| | - Daniel Zucha
- Laboratory of Gene Expression, Institute of Biotechnology CAS, 25250, Vestec, Czechia
| | - Zuzana Berkova
- Laboratory of Pancreatic Islets, Institute for Clinical and Experimental Medicine, 14021, Prague, Czechia
| | - Frantisek Saudek
- Laboratory of Pancreatic Islets, Institute for Clinical and Experimental Medicine, 14021, Prague, Czechia
| | - Sylvia M Evans
- Department of Pharmacology; Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California at San Diego, La Jolla, CA, USA
| | - Gabriela Pavlinkova
- Laboratory of Molecular Pathogenetics, Institute of Biotechnology CAS, 25250, Vestec, Czechia.
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Tanaka K, Besson V, Rivagorda M, Oury F, Marazzi G, Sassoon DA. Paternally expressed gene 3 (Pw1/Peg3) promotes sexual dimorphism in metabolism and behavior. PLoS Genet 2022; 18:e1010003. [PMID: 35025875 PMCID: PMC8791484 DOI: 10.1371/journal.pgen.1010003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Revised: 01/26/2022] [Accepted: 12/20/2021] [Indexed: 01/06/2023] Open
Abstract
The paternally expressed gene 3 (Pw1/Peg3) is a mammalian-specific parentally imprinted gene expressed in stem/progenitor cells of the brain and endocrine tissues. Here, we compared phenotypic characteristics in Pw1/Peg3 deficient male and female mice. Our findings indicate that Pw1/Peg3 is a key player for the determination of sexual dimorphism in metabolism and behavior. Mice carrying a paternally inherited Pw1/Peg3 mutant allele manifested postnatal deficits in GH/IGF dependent growth before weaning, sex steroid dependent masculinization during puberty, and insulin dependent fat accumulation in adulthood. As a result, Pw1/Peg3 deficient mice develop a sex-dependent global shift of body metabolism towards accelerated adiposity, diabetic-like insulin resistance, and fatty liver. Furthermore, Pw1/Peg3 deficient males displayed reduced social dominance and competitiveness concomitant with alterations in the vasopressinergic architecture in the brain. This study demonstrates that Pw1/Peg3 provides an epigenetic context that promotes male-specific characteristics through sex steroid pathways during postnatal development. Pw1/Peg3 is under parental specific epigenetic regulation. We propose that Pw1/Peg3 confers a selective advantage in mammals by regulating sexual dimorphism. To address this question, we examined the consequences of Pw1/Peg3 loss of function in mice in an age- and sex-dependent context and found that Pw1/Peg3 mutants display reduced sexual dimorphism in growth, metabolism and behaviors. Our findings support the intralocus sexual conflict model of genomic imprinting where it contributes in sexual differentiation. Furthermore, our observations provide a unifying role of sex steroid signaling as a common property of Pw1/Peg3 expressing stem/progenitor cells and differentiated endocrine cells, both of which remain proliferative in response to gonadal hormones in adult life.
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Affiliation(s)
- Karo Tanaka
- Stem Cells and Regenerative Medicine, Institute of Cardiometabolism and Nutrition (ICAN), INSERM U1166, University of Pierre and Marie Curie Paris VI, Paris, France
| | - Vanessa Besson
- Stem Cells and Regenerative Medicine, Institute of Cardiometabolism and Nutrition (ICAN), INSERM U1166, University of Pierre and Marie Curie Paris VI, Paris, France
| | - Manon Rivagorda
- Hormonal Regulation of Brain Development and Functions, INSERM U1151, Institut Necker Enfants Malades, Paris, France
| | - Franck Oury
- Hormonal Regulation of Brain Development and Functions, INSERM U1151, Institut Necker Enfants Malades, Paris, France
| | - Giovanna Marazzi
- Stem Cells and Regenerative Medicine, Institute of Cardiometabolism and Nutrition (ICAN), INSERM U1166, University of Pierre and Marie Curie Paris VI, Paris, France
| | - David A. Sassoon
- Stem Cells and Regenerative Medicine, Institute of Cardiometabolism and Nutrition (ICAN), INSERM U1166, University of Pierre and Marie Curie Paris VI, Paris, France
- * E-mail:
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Chabosseau P, Rutter GA, Millership SJ. Importance of Both Imprinted Genes and Functional Heterogeneity in Pancreatic Beta Cells: Is There a Link? Int J Mol Sci 2021; 22:1000. [PMID: 33498234 PMCID: PMC7863946 DOI: 10.3390/ijms22031000] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Revised: 01/12/2021] [Accepted: 01/14/2021] [Indexed: 02/02/2023] Open
Abstract
Diabetes mellitus now affects more than 400 million individuals worldwide, with significant impacts on the lives of those affected and associated socio-economic costs. Although defects in insulin secretion underlie all forms of the disease, the molecular mechanisms which drive them are still poorly understood. Subsets of specialised beta cells have, in recent years, been suggested to play critical roles in "pacing" overall islet activity. The molecular nature of these cells, the means through which their identity is established and the changes which may contribute to their functional demise and "loss of influence" in both type 1 and type 2 diabetes are largely unknown. Genomic imprinting involves the selective silencing of one of the two parental alleles through DNA methylation and modified imprinted gene expression is involved in a number of diseases. Loss of expression, or loss of imprinting, can be shown in mouse models to lead to defects in beta cell function and abnormal insulin secretion. In the present review we survey the evidence that altered expression of imprinted genes contribute to loss of beta cell function, the importance of beta cell heterogeneity in normal and disease states, and hypothesise whether there is a direct link between the two.
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Affiliation(s)
| | | | - Steven J. Millership
- Section of Cell Biology and Functional Genomics, Division of Diabetes, Endocrinology and Metabolism, Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Imperial College London, Du Cane Road, London W12 0NN, UK; (P.C.); (G.A.R.)
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Bouvet M, Claude O, Roux M, Skelly D, Masurkar N, Mougenot N, Nadaud S, Blanc C, Delacroix C, Chardonnet S, Pionneau C, Perret C, Yaniz-Galende E, Rosenthal N, Trégouët DA, Marazzi G, Silvestre JS, Sassoon D, Hulot JS. Anti-integrin α v therapy improves cardiac fibrosis after myocardial infarction by blunting cardiac PW1 + stromal cells. Sci Rep 2020; 10:11404. [PMID: 32647159 PMCID: PMC7347632 DOI: 10.1038/s41598-020-68223-8] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Accepted: 06/19/2020] [Indexed: 12/17/2022] Open
Abstract
There is currently no therapy to limit the development of cardiac fibrosis and consequent heart failure. We have recently shown that cardiac fibrosis post-myocardial infarction (MI) can be regulated by resident cardiac cells with a fibrogenic signature and identified by the expression of PW1 (Peg3). Here we identify αV-integrin (CD51) as an essential regulator of cardiac PW1+ cells fibrogenic behavior. We used transcriptomic and proteomic approaches to identify specific cell-surface markers for cardiac PW1+ cells and found that αV-integrin (CD51) was expressed in almost all cardiac PW1+ cells (93% ± 1%), predominantly as the αVβ1 complex. αV-integrin is a subunit member of the integrin family of cell adhesion receptors and was found to activate complex of latent transforming growth factor beta (TGFβ at the surface of cardiac PW1+ cells. Pharmacological inhibition of αV-integrin reduced the profibrotic action of cardiac PW1+CD51+ cells and was associated with improved cardiac function and animal survival following MI coupled with a reduced infarct size and fibrotic lesion. These data identify a targetable pathway that regulates cardiac fibrosis in response to an ischemic injury and demonstrate that pharmacological inhibition of αV-integrin could reduce pathological outcomes following cardiac ischemia.
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Affiliation(s)
- Marion Bouvet
- Université de Paris, PARCC, INSERM, 56 Rue Leblanc, 75015, Paris, France
| | - Olivier Claude
- Université de Paris, PARCC, INSERM, 56 Rue Leblanc, 75015, Paris, France
| | - Maguelonne Roux
- Sorbonne Université, UPMC Univ Paris 06, INSERM, Institute of Cardio Metabolism and Nutrition (ICAN), Paris, France
| | - Dan Skelly
- The Jackson Laboratory, Bar Harbor, ME, USA
| | - Nihar Masurkar
- Université de Paris, PARCC, INSERM, 56 Rue Leblanc, 75015, Paris, France
| | - Nathalie Mougenot
- Sorbonne Université, UPMC Univ Paris 06, PECMV, UMS28, Paris, France
| | - Sophie Nadaud
- Sorbonne Université, UPMC Univ Paris 06, INSERM, Institute of Cardio Metabolism and Nutrition (ICAN), Paris, France
| | - Catherine Blanc
- Sorbonne Université, Inserm, UMS Omique, Plateforme Post-génomique de la Pitié-Salpêtrière, P3S, 75013, Paris, France
| | - Clément Delacroix
- Université de Paris, PARCC, INSERM, 56 Rue Leblanc, 75015, Paris, France
| | - Solenne Chardonnet
- Sorbonne Université, Inserm, UMS Omique, Plateforme Post-génomique de la Pitié-Salpêtrière, P3S, 75013, Paris, France
| | - Cédric Pionneau
- Sorbonne Université, Inserm, UMS Omique, Plateforme Post-génomique de la Pitié-Salpêtrière, P3S, 75013, Paris, France
| | - Claire Perret
- Sorbonne Université, UPMC Univ Paris 06, INSERM, Institute of Cardio Metabolism and Nutrition (ICAN), Paris, France
| | - Elisa Yaniz-Galende
- Sorbonne Université, UPMC Univ Paris 06, INSERM, Institute of Cardio Metabolism and Nutrition (ICAN), Paris, France
| | | | - David-Alexandre Trégouët
- Sorbonne Université, UPMC Univ Paris 06, INSERM, Institute of Cardio Metabolism and Nutrition (ICAN), Paris, France.,INSERM UMR_S 1219, Bordeaux Population Health Research Center, University of Bordeaux, Bordeaux, France
| | - Giovanna Marazzi
- Université de Paris, PARCC, INSERM, 56 Rue Leblanc, 75015, Paris, France
| | | | - David Sassoon
- Université de Paris, PARCC, INSERM, 56 Rue Leblanc, 75015, Paris, France
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