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Sundrani DP, Karkhanis AR, Joshi SR. Peroxisome Proliferator-Activated Receptors (PPAR), fatty acids and microRNAs: Implications in women delivering low birth weight babies. Syst Biol Reprod Med 2021; 67:24-41. [PMID: 33719831 DOI: 10.1080/19396368.2020.1858994] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Low birth weight (LBW) babies are associated with neonatal morbidity and mortality and are at increased risk for noncommunicable diseases (NCDs) in later life. However, the molecular determinants of LBW are not well understood. Placental insufficiency/dysfunction is the most frequent etiology for fetal growth restriction resulting in LBW and placental epigenetic processes are suggested to be important regulators of pregnancy outcome. Early life exposures like altered maternal nutrition may have long-lasting effects on the health of the offspring via epigenetic mechanisms like DNA methylation and microRNA (miRNA) regulation. miRNAs have been recognized as major regulators of gene expression and are known to play an important role in placental development. Angiogenesis in the placenta is known to be regulated by transcription factor peroxisome proliferator-activated receptor (PPAR) which is activated by ligands such as long-chain-polyunsaturated fatty acids (LCPUFA). In vitro studies in different cell types indicate that fatty acids can influence epigenetic mechanisms like miRNA regulation. We hypothesize that maternal fatty acid status may influence the miRNA regulation of PPAR genes in the placenta in women delivering LBW babies. This review provides an overview of miRNAs and their regulation of PPAR gene in the placenta of women delivering LBW babies.Abbreviations: AA - Arachidonic Acid; Ago2 - Argonaute2; ALA - Alpha-Linolenic Acid; ANGPTL4 - Angiopoietin-Like Protein 4; C14MC - Chromosome 14 miRNA Cluster; C19MC - Chromosome 19 miRNA Cluster; CLA - Conjugated Linoleic Acid; CSE - Cystathionine γ-Lyase; DHA - Docosahexaenoic Acid; EFA - Essential Fatty Acids; E2F3 - E2F transcription factor 3; EPA - Eicosapentaenoic Acid; FGFR1 - Fibroblast Growth Factor Receptor 1; GDM - Gestational Diabetes Mellitus; hADMSCs - Human Adipose Tissue-Derived Mesenchymal Stem Cells; hBMSCs - Human Bone Marrow Mesenchymal Stem Cells; HBV - Hepatitis B Virus; HCC - Hepatocellular Carcinoma; HCPT - Hydroxycamptothecin; HFD - High-Fat Diet; Hmads - Human Multipotent Adipose-Derived Stem; HSCS - Human Hepatic Stellate Cells; IUGR - Intrauterine Growth Restriction; LA - Linoleic Acid; LBW - Low Birth Weight; LCPUFA - Long-Chain Polyunsaturated Fatty Acids; MEK1 - Mitogen-Activated Protein Kinase 1; MiRNA - MicroRNA; mTOR - Mammalian Target of Rapamycin; NCDs - NonCommunicable Diseases; OA - Oleic Acid; PASMC - Pulmonary Artery Smooth Muscle Cell; PLAG1 - Pleiomorphic Adenoma Gene 1; PPAR - Peroxisome Proliferator-Activated Receptor; PPARα - PPAR alpha; PPARγ - PPAR gamma; PPARδ - PPAR delta; pre-miRNA - precursor miRNA; RISC - RNA-Induced Silencing Complex; ROS - Reactive Oxygen Species; SAT - Subcutaneous Adipose Tissue; WHO - World Health Organization.
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Affiliation(s)
- Deepali P Sundrani
- Mother and Child Health, Interactive Research School for Health Affairs (IRSHA), Bharati Vidyapeeth (Deemed to be University), Pune, India
| | - Aishwarya R Karkhanis
- Mother and Child Health, Interactive Research School for Health Affairs (IRSHA), Bharati Vidyapeeth (Deemed to be University), Pune, India
| | - Sadhana R Joshi
- Mother and Child Health, Interactive Research School for Health Affairs (IRSHA), Bharati Vidyapeeth (Deemed to be University), Pune, India
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The Potential Role of Exosomes in Child and Adolescent Obesity. CHILDREN-BASEL 2021; 8:children8030196. [PMID: 33800718 PMCID: PMC7999028 DOI: 10.3390/children8030196] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 02/17/2021] [Accepted: 03/02/2021] [Indexed: 02/07/2023]
Abstract
Child and adolescent obesity constitute one of the greatest contemporary public health menaces. The enduring disproportion between calorie intake and energy consumption, determined by a complex interaction of genetic, epigenetic, and environmental factors, finally leads to the development of overweight and obesity. Child and adolescent overweight/obesity promotes smoldering systemic inflammation (“para-inflammation”) and increases the likelihood of later metabolic and cardiovascular complications, including metabolic syndrome and its components, which progressively deteriorate during adulthood. Exosomes are endosome-derived extracellular vesicles that are secreted by a variety of cells, are naturally taken-up by target cells, and may be involved in many physiological and pathological processes. Over the last decade, intensive research has been conducted regarding the special role of exosomes and the non-coding (nc) RNAs they contain (primarily micro (mi) RNAs, long (l) non-coding RNAs, messenger (m) RNAs and other molecules) in inter-cellular communications. Through their action as communication mediators, exosomes may contribute to the pathogenesis of obesity and associated disorders. There is increasing evidence that exosomal miRNAs and lncRNAs are involved in pivotal processes of adipocyte biology and that, possibly, play important roles in gene regulation linked to human obesity. This review aims to improve our understanding of the roles of exosomes and their cargo in the development of obesity and related metabolic and inflammatory disorders. We examined their potential roles in adipose tissue physiology and reviewed the scarce data regarding the altered patterns of circulating miRNAs and lncRNAs observed in obese children and adolescents, compared them to the equivalent, more abundant existing findings of adult studies, and speculated on their proposed mechanisms of action. Exosomal miRNAs and lncRNAs could be applied as cardiometabolic risk biomarkers, useful in the early diagnosis and prevention of obesity. Furthermore, the targeting of crucial circulating exosomal cargo to tissues involved in the pathogenesis and maintenance of obesity could provide a novel therapeutic approach to this devastating and management-resistant pandemic.
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Pant R, Firmal P, Shah VK, Alam A, Chattopadhyay S. Epigenetic Regulation of Adipogenesis in Development of Metabolic Syndrome. Front Cell Dev Biol 2021; 8:619888. [PMID: 33511131 PMCID: PMC7835429 DOI: 10.3389/fcell.2020.619888] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Accepted: 12/14/2020] [Indexed: 12/12/2022] Open
Abstract
Obesity is one of the biggest public health concerns identified by an increase in adipose tissue mass as a result of adipocyte hypertrophy and hyperplasia. Pertaining to the importance of adipose tissue in various biological processes, any alteration in its function results in impaired metabolic health. In this review, we discuss how adipose tissue maintains the metabolic health through secretion of various adipokines and inflammatory mediators and how its dysfunction leads to the development of severe metabolic disorders and influences cancer progression. Impairment in the adipocyte function occurs due to individuals' genetics and/or environmental factor(s) that largely affect the epigenetic profile leading to altered gene expression and onset of obesity in adults. Moreover, several crucial aspects of adipose biology, including the regulation of different transcription factors, are controlled by epigenetic events. Therefore, understanding the intricacies of adipogenesis is crucial for recognizing its relevance in underlying disease conditions and identifying the therapeutic interventions for obesity and metabolic syndrome.
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Affiliation(s)
- Richa Pant
- National Centre for Cell Science, SP Pune University Campus, Pune, India
| | - Priyanka Firmal
- National Centre for Cell Science, SP Pune University Campus, Pune, India
| | - Vibhuti Kumar Shah
- National Centre for Cell Science, SP Pune University Campus, Pune, India
| | - Aftab Alam
- Roswell Park Comprehensive Cancer Center, Buffalo, NY, United States
| | - Samit Chattopadhyay
- National Centre for Cell Science, SP Pune University Campus, Pune, India.,Department of Biological Sciences, BITS Pilani, Goa, India
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Hammond CL, Roztocil E, Gonzalez MO, Feldon SE, Woeller CF. MicroRNA-130a Is Elevated in Thyroid Eye Disease and Increases Lipid Accumulation in Fibroblasts Through the Suppression of AMPK. Invest Ophthalmol Vis Sci 2021; 62:29. [PMID: 33507228 PMCID: PMC7846950 DOI: 10.1167/iovs.62.1.29] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Purpose Thyroid eye disease (TED) is a condition that causes the tissue behind the eye to become inflamed and can result in excessive fatty tissue accumulation in the orbit. Two subpopulations of fibroblasts reside in the orbit: those that highly express Thy1 (Thy1+) and those with little or no Thy1 (Thy1–). Thy1– orbital fibroblasts (OFs) are more prone to lipid accumulation than Thy1+ OFs. The purpose of this study was to investigate the mechanisms whereby Thy1– OFs more readily accumulate lipid. Methods We screened Thy1+ and Thy1– OFs for differences in microRNA (miRNA) expression. The effects of increasing miR-130a levels in OFs was investigated by measuring lipid accumulation and visualizing lipid deposits. To determine if adenosine monophosphate-activated protein kinase (AMPK) is important for lipid accumulation, we performed small interfering RNA (siRNA)-mediated knockdown of AMPKβ1. We measured AMPK expression and activity using immunoblotting for AMPK and AMPK target proteins. Results We determined that miR-130a was upregulated in Thy1– OFs and that miR-130a targets two subunits of AMPK. Increasing miR-130a levels enhanced lipid accumulation and reduced expression of AMPKα and AMPKβ in OFs. Depletion of AMPK also increased lipid accumulation. Activation of AMPK using AICAR attenuated lipid accumulation and increased phosphorylation of acetyl-CoA carboxylase (ACC) in OFs. Conclusions These data suggest that when Thy1– OFs accumulate in TED, miR-130a levels increase, leading to a decrease in AMPK activity. Decreased AMPK activity promotes lipid accumulation in TED OFs, leading to excessive fatty tissue accumulation in the orbit.
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Affiliation(s)
- Christine L Hammond
- Flaum Eye Institute, University of Rochester, Rochester, New York, United States
| | - Elisa Roztocil
- Flaum Eye Institute, University of Rochester, Rochester, New York, United States
| | - Mithra O Gonzalez
- Flaum Eye Institute, University of Rochester, Rochester, New York, United States
| | - Steven E Feldon
- Flaum Eye Institute, University of Rochester, Rochester, New York, United States
| | - Collynn F Woeller
- Flaum Eye Institute, University of Rochester, Rochester, New York, United States
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Zhang Y, Otomaru K, Oshima K, Goto Y, Oshima I, Muroya S, Sano M, Roh S, Gotoh T. Maternal Nutrition During Gestation Alters Histochemical Properties, and mRNA and microRNA Expression in Adipose Tissue of Wagyu Fetuses. Front Endocrinol (Lausanne) 2021; 12:797680. [PMID: 35178028 PMCID: PMC8844027 DOI: 10.3389/fendo.2021.797680] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Accepted: 12/15/2021] [Indexed: 12/13/2022] Open
Abstract
We hypothesized that maternal low or high nutrition would give unique effects to morphological and molecular dynamics in adipose tissue of fetus of fatty breed Wagyu (Japanese Black) cattle which produce highly marbled beef. This study aimed to determine the effects of maternal energy intake in Wagyu cows, during gestation on fetal adipose tissue development, histochemical properties, and gene and microRNA (miRNA) expression. Cows were allocated to one of two nutritional energy groups: 120% (HIGH) or 60% nutritional requirements of (LOW). Fetuses (n = 6 per treatment) were removed from pregnant cows by cesarean section at fetal age 260 ± 8 days and euthanized. Subcutaneous adipose tissue (SAT), thoracic cavity visceral adipose tissue (TVAT), and perirenal adipose tissue (PAT) were collected for analysis. In histochemical analysis, in SAT and PAT, HIGH fetuses had greater diameter of adipocytes than LOW fetuses (P<0.05). Only in SAT, LOW fetuses had more Leptin (LEP) mRNA and tended to have more Peroxisome Proliferator-Activated Receptor gamma (PPARG) CCAAT-enhancer-binding proteins alpha (CEBPA) and Glucose transporter (GLUT) 4 mRNA(P<0.10). In all SAT, TVAT, and PAT, LOW fetuses had higher levels of the brown adipose tissue (BAT) biomarkers Uncoupling Protein (UCP) 1 and PPARG coactivator (PGC) 1α mRNA than HIGH fetuses (P<0.08). Meanwhile, in the other adipose tissue, LOW fetuses had lower PPARG, CEBPA, and Zinc Finger Protein (ZFP) 423 (in TVAT and PAT), FASN (in TVAT), LEP and GLUT4 mRNA (in PAT; P<0.10). In particular, in TVAT and PAT, LOW fetuses exhibited lower expression of WAT biomarkers (PPARG and ZFP423). Differential expression of various miRNAs related to adipogenesis between the LOW and HIGH fetuses was detected in an adipose tissue-specific manner (P<0.10). Based on adipose tissue-specific effects of maternal nutrition, these findings suggested that poor maternal nutrition in Wagyu cattle increased BAT development in SAT, TVAT and PAT, while elevated maternal nutrition stimulated fetal SAT development compared with that of TVAT and PAT.
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Affiliation(s)
- Yi Zhang
- Faculty of Agriculture, Kagoshima University, Kagoshima, Japan
- Kuju Agricultural Research Center, Kyushu University, Taketa, Japan
| | - Konosuke Otomaru
- Joint Faculty of Veterinary Medicine, Kagoshima University, Kagoshima, Japan
| | - Kazunaga Oshima
- Western Region Agricultural Research Center, National Agriculture and Food Research Organization (NARO), Oda, Japan
| | - Yuji Goto
- Western Region Agricultural Research Center, National Agriculture and Food Research Organization (NARO), Oda, Japan
| | - Ichiro Oshima
- Faculty of Agriculture, Kagoshima University, Kagoshima, Japan
| | - Susumu Muroya
- Institute of Livestock and Grassland Science, National Agriculture and Food Research Organization (NARO), Tsukuba, Japan
| | - Mitsue Sano
- Department of Nutrition, School of Human Cultures, The University of Shiga Prefecture, Hikone, Japan
| | - Sanggun Roh
- Graduate School of Agricultural Science, Tohoku University, Sendai, Japan
| | - Takafumi Gotoh
- Faculty of Agriculture, Kagoshima University, Kagoshima, Japan
- Kuju Agricultural Research Center, Kyushu University, Taketa, Japan
- *Correspondence: Takafumi Gotoh,
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Lin W, Tang Y, Zhao Y, Zhao J, Zhang L, Wei W, Chen J. MiR-144-3p Targets FoxO1 to Reduce Its Regulation of Adiponectin and Promote Adipogenesis. Front Genet 2021; 11:603144. [PMID: 33381152 PMCID: PMC7767994 DOI: 10.3389/fgene.2020.603144] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Accepted: 11/23/2020] [Indexed: 12/24/2022] Open
Abstract
MicroRNAs (miRNAs), as a series of important short-chain non-coding RNAs, play an important post-transcriptional role in many biological activities, including adipogenesis. miR-144 is significantly upregulated in type II diabetes (T2D), and is considered to be an important biomarker for T2D. However, although the occurrence of T2D is inextricably linked to adipogenesis, whether miR-144 directly regulates adipogenesis remains to be further explored. In this paper, we demonstrate that miR-144 has a higher expression level in a porcine high backfat group, and it has a significant positive effect on promoting the differentiation of pre-adipocytes. FoxO1 is a target gene of miR-144, and inhibits the differentiation of pre-adipocytes. On the other hand, we demonstrate that FoxO1 can bind to the AdipoQ gene promoter, then regulate the AdipoQ expression by binding to the FoxO1 binding site in the AdipoQ promoter -1,499 to -1,489 bp and -1,238 to -1,228 bp regions, especially the -1,499 to -1,489 bp region. Meanwhile, miR-144 and FoxO1 co-expressional research has also shown that both factors regulate adipogenesis. To sum up, our research indicates that miR-144 targets FoxO1, thus reducing its expression and inhibiting its promotional effect on adiponectin, thereby alleviating the inhibitory effect of adiponectin on adipogenesis.
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Affiliation(s)
- Weimin Lin
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Yonghang Tang
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Yuelei Zhao
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Jindi Zhao
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Lifan Zhang
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Wei Wei
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Jie Chen
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
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MiR-125b-2 knockout increases high-fat diet-induced fat accumulation and insulin resistance. Sci Rep 2020; 10:21969. [PMID: 33319811 PMCID: PMC7738482 DOI: 10.1038/s41598-020-77714-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2020] [Accepted: 11/09/2020] [Indexed: 12/26/2022] Open
Abstract
Obese individuals are more susceptible to comorbidities than individuals of healthy weight, including cardiovascular disease and metabolic disorders. MicroRNAs are a class of small and noncoding RNAs that are implicated in the regulation of chronic human diseases. We previously reported that miR-125b plays a critical role in adipogenesis in vitro. However, the involvement of miR-125b-2 in fat metabolism in vivo remains unknown. In the present study, miR-125b-2 knockout mice were generated using CRISPR/CAS9 technology, resulting in mice with a 7 bp deletion in the seed sequence of miR-125b-2. MiR-125b-2 knockout increased the weight of liver tissue, epididymal white fat and inguinal white fat. MiR-125b-2 knockout also increased adipocyte volume in HFD-induced obese mice, while there were no significant differences in body weight and feed intake versus mice fed a normal diet. Additionally, qRT-PCR and western blot analysis revealed that the expression of the miR-125b-2 target gene SCD-1 and fat synthesis-associated genes, such as PPARγ and C/EBPα, were significantly up-regulated in miR-125b-2KO mice (P < 0.05). Moreover, miR-125b-2KO altered HFD-induced changes in glucose tolerance and insulin resistance. In conclusion, we show that miR-125b-2 is a novel potential target for regulating fat accumulation, and also a candidate target to develop novel treatment strategies for obesity and diabetes.
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Liu H, Wei W, Lin W, Yu W, Luo W, Niu Y, Zhang L, Chen J. miR-32-5p Regulates Lipid Accumulation in Intramuscular Fat of Erhualian Pigs by Suppressing KLF3. Lipids 2020; 56:279-287. [PMID: 33305404 DOI: 10.1002/lipd.12294] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Revised: 11/15/2020] [Accepted: 11/16/2020] [Indexed: 01/20/2023]
Abstract
Intramuscular fat (IMF) and subcutaneous fat (SCF) are important traits affecting the economics of the pork industry, in which less SCF and more IMF content is desirable. However, the mechanisms that regulate IMF and SCF content are not clear yet. In this study, we demonstrate that KLF3 (Krüppel-like factor 3) was negatively correlated with IMF content in the longissimus dorsi muscle of Erhualian pigs. In addition, the expression level of KLF3 was significantly higher in IMF than SCF. Overexpression and knockdown experiments revealed that KLF3 could suppress adipocyte differentiation in vitro by downregulating adipogenic markers, including PPARG, C/EBPA, and FABP4. Luciferase activity analysis proved that miR-32-5p was able to suppress KLF3. Notably, miR-32-5p level was negatively correlated to KLF3 mRNA level in both IMF and SCF tissues. The same relationship was proved in samples with different IMF content. Further studies showed that miR-32-5p could promote adipocyte differentiation via inhibiting KLF3. Our results suggest that the miR-32-5p-KLF3 pathway is involved in the regulation of differential fat deposition of IMF and SCF tissues.
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Affiliation(s)
- Hongcheng Liu
- College of Animal Science and Technology, Nanjing Agricultural University, No. 1, Weigang, Nanjing, 210095, China
| | - Wei Wei
- College of Animal Science and Technology, Nanjing Agricultural University, No. 1, Weigang, Nanjing, 210095, China
| | - Weimin Lin
- College of Animal Science and Technology, Nanjing Agricultural University, No. 1, Weigang, Nanjing, 210095, China
| | - Wensai Yu
- College of Animal Science and Technology, Nanjing Agricultural University, No. 1, Weigang, Nanjing, 210095, China
| | - Wu Luo
- College of Animal Science and Technology, Nanjing Agricultural University, No. 1, Weigang, Nanjing, 210095, China
| | - Yingfang Niu
- College of Animal Science and Technology, Nanjing Agricultural University, No. 1, Weigang, Nanjing, 210095, China
| | - Lifan Zhang
- College of Animal Science and Technology, Nanjing Agricultural University, No. 1, Weigang, Nanjing, 210095, China
| | - Jie Chen
- College of Animal Science and Technology, Nanjing Agricultural University, No. 1, Weigang, Nanjing, 210095, China
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Qiang J, Tao F, Bao W, He J, Li X, Chen J, Xu P. Responses of functional miRNA-mRNA regulatory modules to a high-fat diet in the liver of hybrid yellow catfish (Pelteobagrus fulvidraco × P. vachelli). Genomics 2020; 113:1207-1220. [PMID: 33309769 DOI: 10.1016/j.ygeno.2020.12.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Revised: 09/16/2020] [Accepted: 12/06/2020] [Indexed: 01/28/2023]
Abstract
Fatty liver disease is common in cultured yellow catfish as a result of high fat contents in feeds. However, little is known about the mechanism by which the excessive deposition of liver fat causes fatty liver disease. Hybrid yellow catfish (Pelteobagrus fulvidraco♀ × P. vachelli♂) were fed a high-fat diet (HFD) or a normal-fat diet (NFD) for 60 days. Compared with the NFD group, the HFD group showed lower growth performance, higher hepatosomatic and viscerosomatic indexes, increased hepatic triglyceride and cholesterol contents, and more and larger lipid droplets in liver tissue. Whole transcriptome mRNA libraries and microRNA libraries from fish in the NFD and HFD groups were constructed by high-throughput sequencing. Twelve miRNAs were differentially expressed (DE) between the HFD and NFD groups. Seven negatively correlated DE miRNA-DE mRNA pairs were selected, and the expression patterns of both were confirmed using qRT-PCR. Hybrid yellow catfish showed mediated oxidative degradation of liver glucose and fatty acid peroxidation, regulation of antioxidant enzyme activity, and various immune and inflammatory responses to fat deposition and stress. These findings have important biological significance for protecting the liver against stress, as well as economic significance for establishing healthy aquaculture conditions.
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Affiliation(s)
- Jun Qiang
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi, Jiangsu, China.
| | - Fanyi Tao
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi, Jiangsu, China.
| | - Wenjin Bao
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi, Jiangsu, China
| | - Jie He
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi, Jiangsu, China.
| | - Xiahong Li
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi, Jiangsu, China.
| | - Jude Chen
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi, Jiangsu, China
| | - Pao Xu
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi, Jiangsu, China.
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Gharanei S, Shabir K, Brown JE, Weickert MO, Barber TM, Kyrou I, Randeva HS. Regulatory microRNAs in Brown, Brite and White Adipose Tissue. Cells 2020; 9:cells9112489. [PMID: 33207733 PMCID: PMC7696849 DOI: 10.3390/cells9112489] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 11/02/2020] [Accepted: 11/13/2020] [Indexed: 02/07/2023] Open
Abstract
MicroRNAs (miRNAs) constitute a class of short noncoding RNAs which regulate gene expression by targeting messenger RNA, inducing translational repression and messenger RNA degradation. This regulation of gene expression by miRNAs in adipose tissue (AT) can impact on the regulation of metabolism and energy homeostasis, particularly considering the different types of adipocytes which exist in mammals, i.e., white adipocytes (white AT; WAT), brown adipocytes (brown AT; BAT), and inducible brown adipocytes in WAT (beige or brite or brown-in-white adipocytes). Indeed, an increasing number of miRNAs has been identified to regulate key signaling pathways of adipogenesis in BAT, brite AT, and WAT by acting on transcription factors that promote or inhibit adipocyte differentiation. For example, MiR-328, MiR-378, MiR-30b/c, MiR-455, MiR-32, and MiR-193b-365 activate brown adipogenesis, whereas MiR-34a, MiR-133, MiR-155, and MiR-27b are brown adipogenesis inhibitors. Given that WAT mainly stores energy as lipids, whilst BAT mainly dissipates energy as heat, clarifying the effects of miRNAs in different types of AT has recently attracted significant research interest, aiming to also develop novel miRNA-based therapies against obesity, diabetes, and other obesity-related diseases. Therefore, this review presents an up-to-date comprehensive overview of the role of key regulatory miRNAs in BAT, brite AT, and WAT.
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Affiliation(s)
- Seley Gharanei
- Warwickshire Institute for the Study of Diabetes, Endocrinology and Metabolism (WISDEM), University Hospitals Coventry and Warwickshire NHS Trust, Coventry CV2 2DX, UK; (S.G.); (M.O.W.); (T.M.B.); (I.K.)
- Warwick Medical School, University of Warwick, Coventry CV4 7AL, UK
| | - Kiran Shabir
- Aston Medical Research Institute, Aston Medical School, College of Health and Life Sciences, Aston University, Birmingham B4 7ET, UK; (K.S.); (J.E.B.)
| | - James E. Brown
- Aston Medical Research Institute, Aston Medical School, College of Health and Life Sciences, Aston University, Birmingham B4 7ET, UK; (K.S.); (J.E.B.)
- School of Biosciences, College of Health and Life Sciences, Aston University, Birmingham B4 7ET, UK
| | - Martin O. Weickert
- Warwickshire Institute for the Study of Diabetes, Endocrinology and Metabolism (WISDEM), University Hospitals Coventry and Warwickshire NHS Trust, Coventry CV2 2DX, UK; (S.G.); (M.O.W.); (T.M.B.); (I.K.)
- Warwick Medical School, University of Warwick, Coventry CV4 7AL, UK
- Centre of Applied Biological & Exercise Sciences, Faculty of Health & Life Sciences, Coventry University, Coventry CV1 5FB, UK
| | - Thomas M. Barber
- Warwickshire Institute for the Study of Diabetes, Endocrinology and Metabolism (WISDEM), University Hospitals Coventry and Warwickshire NHS Trust, Coventry CV2 2DX, UK; (S.G.); (M.O.W.); (T.M.B.); (I.K.)
- Warwick Medical School, University of Warwick, Coventry CV4 7AL, UK
| | - Ioannis Kyrou
- Warwickshire Institute for the Study of Diabetes, Endocrinology and Metabolism (WISDEM), University Hospitals Coventry and Warwickshire NHS Trust, Coventry CV2 2DX, UK; (S.G.); (M.O.W.); (T.M.B.); (I.K.)
- Warwick Medical School, University of Warwick, Coventry CV4 7AL, UK
- Aston Medical Research Institute, Aston Medical School, College of Health and Life Sciences, Aston University, Birmingham B4 7ET, UK; (K.S.); (J.E.B.)
| | - Harpal S. Randeva
- Warwickshire Institute for the Study of Diabetes, Endocrinology and Metabolism (WISDEM), University Hospitals Coventry and Warwickshire NHS Trust, Coventry CV2 2DX, UK; (S.G.); (M.O.W.); (T.M.B.); (I.K.)
- Warwick Medical School, University of Warwick, Coventry CV4 7AL, UK
- Aston Medical Research Institute, Aston Medical School, College of Health and Life Sciences, Aston University, Birmingham B4 7ET, UK; (K.S.); (J.E.B.)
- Correspondence:
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Wu H, Li X, Shen C. Peroxisome proliferator-activated receptor gamma in white and brown adipocyte regulation and differentiation. Physiol Res 2020; 69:759-773. [PMID: 32901494 DOI: 10.33549/physiolres.934411] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
In as early as 1997, the World Health Organization officially recognized obesity as a chronic disease. The current epidemic of obesity and overweightness has aroused great interest in the study of adipose tissue formation. The transcription factor peroxisome proliferator-activated receptor gamma (PPARgamma) binds to the target gene promoter regulatory sequences, acting as a key factor in regulating the differentiation of preadipocytes in the adipose tissue, and plays an important role in regulating the adipocyte metabolism. A further understanding of the structure and expression characteristics of PPARgamma, in addition to its mechanisms of action in adipocyte differentiation, may be applied to control obesity and prevent obesity-related diseases. In this article, recent studies investigating the effect of regulating PPARgamma on adipocyte differentiation are reviewed. In particular, the structural characteristics, expression patterns, and molecular mechanisms of PPARgamma function in adipocyte differentiation are considered.
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Affiliation(s)
- H Wu
- Nutritional Department, Seventh People's Hospital of Shanghai University of Traditional Chinese Medicine, Gaoqiao Town, Pudong New Area, Shanghai, China.
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62
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Hirano T, Yunoki T, Furusawa Y, Tabuchi Y, Hayashi A. Bioinformatics analysis of the microRNA-mRNA network in sebaceous gland carcinoma of the eyelid. Mol Med Rep 2020; 23:44. [PMID: 33179085 PMCID: PMC7684873 DOI: 10.3892/mmr.2020.11682] [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] [Received: 01/17/2020] [Accepted: 10/13/2020] [Indexed: 12/13/2022] Open
Abstract
Sebaceous gland carcinoma (SGC) of the eyelid is an uncommon aggressive tumor with a relatively high rate of local recurrence and a poor prognosis following metastasis. However, the molecular mechanisms underlying the pathogenesis of SGC remain unclear. The purpose of the present study was to clarify microRNA (miRNA) expression profiles in SGC and to explore novel miRNA-mRNA networks of SGC. A small RNA-sequencing analysis was performed to identify miRNAs differentially expressed between SGC and sebaceous adenoma control samples. Bioinformatics analyses were conducted to reveal biological functions, canonical pathways and molecular interaction networks using integrated miRNA-mRNA datasets, including mRNA expression profiles of SGC from our previous study. The present results demonstrated that 16 upregulated miRNAs and 516 downregulated mRNAs were associated with loss of lipid metabolism function and enriched in cholesterol biosynthesis pathways. By contrast, 29 downregulated miRNAs and 194 upregulated mRNAs were mainly associated with the promotion of cell survival and proliferation in addition to enrichment of DNA damage-induced cell cycle-regulation pathways. Furthermore, network analyses revealed that the upregulated miRNAs, miR-130a-3p and miR-939-5p, and the downregulated miRNAs, miR-146a-5p, miR-149-3p, miR-193a-3p, miR-195-5p and miR-4671-3p, could be upstream regulators related to these functional changes of SGC. These results improved the understanding of molecular mechanisms of SGC and may help to improve the diagnosis of SGC.
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Affiliation(s)
- Tetsushi Hirano
- Division of Molecular Genetics Research, Life Science Research Center, University of Toyama, Toyama 930-0194, Japan
| | - Tatsuya Yunoki
- Department of Ophthalmology, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Toyama 930-0194, Japan
| | - Yukihiro Furusawa
- Department of Liberal Arts and Sciences, Toyama Prefectural University, Toyama 939-0398, Japan
| | - Yoshiaki Tabuchi
- Division of Molecular Genetics Research, Life Science Research Center, University of Toyama, Toyama 930-0194, Japan
| | - Atsushi Hayashi
- Department of Ophthalmology, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Toyama 930-0194, Japan
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Heyn GS, Corrêa LH, Magalhães KG. The Impact of Adipose Tissue-Derived miRNAs in Metabolic Syndrome, Obesity, and Cancer. Front Endocrinol (Lausanne) 2020; 11:563816. [PMID: 33123088 PMCID: PMC7573351 DOI: 10.3389/fendo.2020.563816] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Accepted: 09/18/2020] [Indexed: 12/11/2022] Open
Abstract
Obesity is a multifactorial and complex condition that is characterized by abnormal and excessive white adipose tissue accumulation, which can lead to the development of metabolic diseases, such as type 2 diabetes mellitus, nonalcoholic fatty liver disease, cardiovascular diseases, and several types of cancer. Obesity is characterized by excessive adipose tissue accumulation and associated with alterations in immunity, displaying a chronic low-grade inflammation profile. Adipose tissue is a dynamic and complex endocrine organ composed not only by adipocytes, but several immunological cells, which can secrete hormones, cytokines and many other factors capable of regulating metabolic homeostasis and several critical biological pathways. Remarkably, adipose tissue is a major source of circulating microRNAs (miRNAs), recently described as a novel form of adipokines. Several adipose tissue-derived miRNAs are deeply associated with adipocytes differentiation and have been identified with an essential role in obesity-associated inflammation, insulin resistance, and tumor microenvironment. During obesity, adipose tissue can completely change the profile of the secreted miRNAs, influencing circulating miRNAs and impacting the development of different pathological conditions, such as obesity, metabolic syndrome, and cancer. In this review, we discuss how miRNAs can act as epigenetic regulators affecting adipogenesis, adipocyte differentiation, lipid metabolism, browning of the white adipose tissue, glucose homeostasis, and insulin resistance, impacting deeply obesity and metabolic diseases. Moreover, we characterize how miRNAs can often act as oncogenic and tumor suppressor molecules, significantly modulating cancer establishment and progression. Furthermore, we highlight in this manuscript how adipose tissue-derived miRNAs can function as important new therapeutic targets.
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Affiliation(s)
| | | | - Kelly Grace Magalhães
- Laboratory of Immunology and Inflammation, Department of Cell Biology, University of Brasilia, Brasilia, Brazil
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Faridi A, Afgar A, Mousavi SM, Nasibi S, Mohammadi MA, Farajli Abbasi M, Fasihi Harandi M. Intestinal Expression of miR-130b, miR-410b, and miR-98a in Experimental Canine Echinococcosis by Stem-Loop RT-qPCR. Front Vet Sci 2020; 7:507. [PMID: 33005638 PMCID: PMC7480022 DOI: 10.3389/fvets.2020.00507] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2020] [Accepted: 07/03/2020] [Indexed: 12/19/2022] Open
Abstract
Echinococcus granulosus is a zoonotic cestode dwelling in the small intestine of canid definitive hosts. Intermediate hosts are a wide range of domestic and wild ungulates. Human infection with the larval stage causes cystic echinococcosis. Understanding the nature and extent of molecular mechanisms involved in host–parasite interactions helps to answer some very basic questions in the biology of cestode parasites with significant implications in the management and control of cystic echinococcosis. Little is known on the miRNAs expression in the intestinal tissues of dogs infected with E. granulosus. In the present study, expression of a selected profile of miRNAs was evaluated in experimental canine echinococcosis. MiRNAs were extracted from 20 different parts of small intestinal tract of two sibling 3-months-old mix-breed dogs. Complementary DNA was specifically synthesized using an optimized stem-loop system. Intestinal expression of four miRNAs (cfa-let7g, cfa-miR-98, cfamiR-410, cfa-miR-130b) was evaluated using RT-qPCR. The results of the study indicate a significant difference between test and control dogs in cfamiR-130b, cfa-miR-98, and cfa-miR-410 (P ≤ 0.05); however, there was no significant difference for cfa-let7g. The most upregulated miRNAs were cfamiR-130b and cfa-miR-98. An increasing trend for cfa-let7g and a declining trend for cfa-miR-98, cfa-miR-410, and cfamiR-130b were found toward the distal segments of the small intestine. Our study revealed that cfa-miR-98, cfa-miR-410, and cfamiR-130b are involved in the definitive host response in canine echinococcosis. The study provides new information on the molecular basis of interactions between E. granulosus and dogs in terms of miRNA expression and showed that E. granulosus infection could increase the expression of some pro-inflammatory miRNAs at the cellular level in the definitive host.
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Affiliation(s)
- Ashkan Faridi
- Student Research Committee, Kerman University of Medical Sciences, Kerman, Iran.,Research Center for Hydatid Disease in Iran, Kerman University of Medical Sciences, Kerman, Iran
| | - Ali Afgar
- Research Center for Hydatid Disease in Iran, Kerman University of Medical Sciences, Kerman, Iran
| | - Seyed Mohammad Mousavi
- Research Center for Hydatid Disease in Iran, Kerman University of Medical Sciences, Kerman, Iran
| | - Saeid Nasibi
- Research Center for Hydatid Disease in Iran, Kerman University of Medical Sciences, Kerman, Iran
| | - Mohammad Ali Mohammadi
- Research Center for Hydatid Disease in Iran, Kerman University of Medical Sciences, Kerman, Iran
| | - Mohammad Farajli Abbasi
- Neuroscience Research Center, Institute of Neuropharmacology, Kerman University of Medical Sciences, Kerman, Iran
| | - Majid Fasihi Harandi
- Research Center for Hydatid Disease in Iran, Kerman University of Medical Sciences, Kerman, Iran
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Abdalla M, Deshmukh H, Atkin SL, Sathyapalan T. miRNAs as a novel clinical biomarker and therapeutic targets in polycystic ovary syndrome (PCOS): A review. Life Sci 2020; 259:118174. [PMID: 32745529 DOI: 10.1016/j.lfs.2020.118174] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Revised: 07/20/2020] [Accepted: 07/27/2020] [Indexed: 12/17/2022]
Abstract
Polycystic ovary syndrome (PCOS) is the most prevalent endocrine disorder in females of the reproductive age. PCOS is commonly manifested as ovulatory dysfunction, clinical and biochemical excess androgen level, and polycystic ovaries. Metabolic sequelae associated with PCOS, including insulin resistance (IR), type 2 diabetes (T2DM), obesity and increased cardiometabolic risk. The underlying pathology of PCOS is not fully understood with various genetic and environmental factors have been proposed. MicroRNAs (miRNAs), are endogenously produced, small non-coding, single-stranded RNAs that capable of regulating gene expression at the post-transcriptional level. Altered miRNAs expression has been associated with various disorders, including T2DM, IR, lipid disorder, infertility, atherosclerosis, endometriosis, and cancer. Given that PCOS also present with similar features, there is an increasing interest to investigate the role of miRNAs in the diagnosis and management of PCOS. In recent years, studies have demonstrated that miRNAs are present in various body fluids, including follicular fluid of women with PCOS. Therefore, it may act as a potential biomarker and could serve as a novel therapeutic target for the diagnosis and treatment of PCOS. This review aims to summarise the up to date research on the relation between miRNAs and PCOS and explore its potential role in the diagnosis and the management of PCOS.
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Affiliation(s)
- Mohammed Abdalla
- Hull York Medical School, Academic Diabetes, Endocrinology and Metabolism, University of Hull, Hull, UK.
| | - Harshal Deshmukh
- Clinical lecturer at Hull York Medical School, Academic Diabetes, Endocrinology and Metabolism, University of Hull, Hull, UK.
| | - Stephen L Atkin
- Head of School Postgraduate Studies and Research, RCIS-Bahrain, Medical University of Bahrain, Bahrain.
| | - Thozhukat Sathyapalan
- Honorary Consultant Endocrinologist at Hull University Teaching Hospital NHS Trust, UK; Chair in Academic Diabetes, Endocrinology and metabolism in Hull York Medical School, University of Hull, UK.
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66
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Wang F, Li X, Li Z, Wang S, Fan J. Functions of Circular RNAs in Regulating Adipogenesis of Mesenchymal Stem Cells. Stem Cells Int 2020; 2020:3763069. [PMID: 32802080 PMCID: PMC7416283 DOI: 10.1155/2020/3763069] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Revised: 07/07/2020] [Accepted: 07/08/2020] [Indexed: 12/17/2022] Open
Abstract
The mesenchymal stem cells (MSCs) are known as highly plastic stem cells and can differentiate into specialized tissues such as adipose tissue, osseous tissue, muscle tissue, and nervous tissue. The differentiation of mesenchymal stem cells is very important in regenerative medicine. Their differentiation process is regulated by signaling pathways of epigenetic, transcriptional, and posttranscriptional levels. Circular RNA (circRNA), a class of noncoding RNAs generated from protein-coding genes, plays a pivotal regulatory role in many biological processes. Accumulated studies have demonstrated that several circRNAs participate in the cell differentiation process of mesenchymal stem cells in vitro and in vivo. In the current review, characteristics and functions of circRNAs in stem cell differentiation will be discussed. The mechanism and key role of circRNAs in regulating mesenchymal stem cell differentiation, especially adipogenesis, will be reviewed and discussed. Understanding the roles of these circRNAs will present us with a more comprehensive signal path network of modulating stem cell differentiation and help us discover potential biomarkers and therapeutic targets in clinic.
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Affiliation(s)
- Fanglin Wang
- Department of Tissue Engineering, School of Fundamental Science, China Medical University, Shenyang, Liaoning 110122, China
| | - Xiang Li
- Department of Cell Biology, Key Laboratory of Cell Biology, Ministry of Public Health, And Key Laboratory of Medical Cell Biology, Ministry of Education, China Medical University, Shenyang, Liaoning 110122, China
| | - Zhiyuan Li
- Department of Tissue Engineering, School of Fundamental Science, China Medical University, Shenyang, Liaoning 110122, China
| | - Shoushuai Wang
- Department of Tissue Engineering, School of Fundamental Science, China Medical University, Shenyang, Liaoning 110122, China
| | - Jun Fan
- Department of Tissue Engineering, School of Fundamental Science, China Medical University, Shenyang, Liaoning 110122, China
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Liu X, Chen S, Zhang L. Downregulated microRNA-130b-5p prevents lipid accumulation and insulin resistance in a murine model of nonalcoholic fatty liver disease. Am J Physiol Endocrinol Metab 2020; 319:E34-E42. [PMID: 32228319 DOI: 10.1152/ajpendo.00528.2019] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Nonalcoholic fatty liver disease (NAFLD) amplifies the risk of various liver diseases, ranging from simple steatosis to nonalcoholic steatohepatitis, fibrosis, and cirrhosis, and ultimately hepatocellular carcinoma. Accumulating evidence suggests the involvement of aberrant microRNAs (miRNAs or miRs) in the activation of cellular stress, inflammation, and fibrogenesis in hepatic cells at different stages of NAFLD and liver fibrosis. Here, we explored the potential role of miR-130b-5p in the pathogenesis of NAFLD, including lipid accumulation and insulin resistance, as well as the underlying mechanism. Initially, the expression of miR-130b-5p and insulin-like growth factor binding protein 2 (IGFBP2) was examined in the established high-fat diet-induced NAFLD mouse models. Then, the interaction between miR-130b-5p and IGFBP2 was validated using dual luciferase reporter assay. The effects of miR-130b-5p and IGFBP2 on lipid accumulation and insulin resistance, as well as the AKT pathway-related proteins, were evaluated using gain or loss-of-function approaches. miR-130b-5p was upregulated, and IGFBP2 was downregulated in liver tissues of NAFLD mice. miR-130b-5p targeted IGFBP2 and downregulated its expression. MiR-130b-5p inhibition or IGFBP2 overexpression reduced the expression of SREBP-1, LXRα, ChREBP, stearoyl CoA desaturase 1, acetyl CoA carboxylase 1, and fatty acid synthase, and levels of fasting blood glucose, fasting insulin, and homeostasis model assessment-insulin resistance, while increasing the ratio of p-AKT/AKT in NAFLD mice. Overall, downregulation of miR-130b-5p can prevent hepatic lipid accumulation and insulin resistance in NAFLD by activating IGFBP2-dependent AKT pathway, highlighting the potential use of anti-miR-130b-5p as therapeutic approaches for the prevention and treatment of NAFLD.
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Affiliation(s)
- Xiaonan Liu
- Department of Endocrinology, Linyi People's Hospital, Linyi, Shandong, People's Republic of China
| | - Shuhong Chen
- Department of Endocrinology, Linyi People's Hospital, Linyi, Shandong, People's Republic of China
| | - Lanju Zhang
- Department of Endocrinology, Linyi People's Hospital, Linyi, Shandong, People's Republic of China
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Obri A, Serra D, Herrero L, Mera P. The role of epigenetics in the development of obesity. Biochem Pharmacol 2020; 177:113973. [DOI: 10.1016/j.bcp.2020.113973] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Accepted: 04/08/2020] [Indexed: 12/13/2022]
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Ambele MA, Dhanraj P, Giles R, Pepper MS. Adipogenesis: A Complex Interplay of Multiple Molecular Determinants and Pathways. Int J Mol Sci 2020; 21:E4283. [PMID: 32560163 PMCID: PMC7349855 DOI: 10.3390/ijms21124283] [Citation(s) in RCA: 159] [Impact Index Per Article: 39.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Accepted: 06/07/2020] [Indexed: 11/24/2022] Open
Abstract
The formation of adipocytes during embryogenesis has been largely understudied. However, preadipocytes appear to originate from multipotent mesenchymal stromal/stem cells which migrate from the mesoderm to their anatomical localization. Most studies on adipocyte formation (adipogenesis) have used preadipocytes derived from adult stem/stromal cells. Adipogenesis consists of two phases, namely commitment and terminal differentiation. This review discusses the role of signalling pathways, epigenetic modifiers, and transcription factors in preadipocyte commitment and differentiation into mature adipocytes, as well as limitations in our understanding of these processes. To date, a limited number of transcription factors, genes and signalling pathways have been described to regulate preadipocyte commitment. One reason could be that most studies on adipogenesis have used preadipocytes already committed to the adipogenic lineage, which are therefore not suitable for studying preadipocyte commitment. Conversely, over a dozen molecular players including transcription factors, genes, signalling pathways, epigenetic regulators, and microRNAs have been described to be involved in the differentiation of preadipocytes to adipocytes; however, only peroxisome proliferator-activated receptor gamma has proven to be clinically relevant. A detailed understanding of how the molecular players underpinning adipogenesis relate to adipose tissue function could provide new therapeutic approaches for addressing obesity without compromising adipose tissue function.
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Affiliation(s)
- Melvin A. Ambele
- Department of Immunology, and SAMRC Extramural Unit for Stem Cell Research and Therapy, Institute for Cellular and Molecular Medicine, Faculty of Health Sciences, University of Pretoria, Pretoria 0001, South Africa; (M.A.A.); (P.D.); (R.G.)
- Department of Oral Pathology and Oral Biology, School of Dentistry, Faculty of Health Sciences, University of Pretoria, Pretoria 0001, South Africa
| | - Priyanka Dhanraj
- Department of Immunology, and SAMRC Extramural Unit for Stem Cell Research and Therapy, Institute for Cellular and Molecular Medicine, Faculty of Health Sciences, University of Pretoria, Pretoria 0001, South Africa; (M.A.A.); (P.D.); (R.G.)
| | - Rachel Giles
- Department of Immunology, and SAMRC Extramural Unit for Stem Cell Research and Therapy, Institute for Cellular and Molecular Medicine, Faculty of Health Sciences, University of Pretoria, Pretoria 0001, South Africa; (M.A.A.); (P.D.); (R.G.)
| | - Michael S. Pepper
- Department of Immunology, and SAMRC Extramural Unit for Stem Cell Research and Therapy, Institute for Cellular and Molecular Medicine, Faculty of Health Sciences, University of Pretoria, Pretoria 0001, South Africa; (M.A.A.); (P.D.); (R.G.)
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Campitelli M, Desiderio A, Cacace G, Nigro C, Prevenzano I, Leone A, de Simone S, Campiglia P, Formisano P, Raciti GA, Beguinot F, Miele C. Citrus aurantium L. Dry Extracts Ameliorate Adipocyte Differentiation of 3T3-L1 Cells Exposed to TNFα by Down-Regulating miR-155 Expression. Nutrients 2020; 12:nu12061587. [PMID: 32481686 PMCID: PMC7352926 DOI: 10.3390/nu12061587] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Revised: 05/22/2020] [Accepted: 05/26/2020] [Indexed: 01/14/2023] Open
Abstract
Citrus aurantium L. dry extracts (CAde) improve adipogenesis in vitro. These effects are dependent from an early modulation of CCAAT/enhancer-binding protein beta (C/Ebpβ) expression and cyclic Adenosine Monophosphate (cAMP) response element-binding protein (CREB) activation. C/Ebpβ and Creb are also targets of miR-155. This study investigated whether CAde regulates miR-155 expression in the early stages of adipogenesis and whether it ameliorates adipocyte differentiation of cells exposed to tumor necrosis factor-alpha (TNFα). Adipogenic stimuli (AS) were performed in 3T3-L1 pre-adipocytes treated with CAde, TNFα, or both. Gene and miRNA expression were determined by quantitative real-time PCR. Adipogenesis was evaluated by Oil-Red O staining. CAde treatment enhanced AS effects during the early adipogenesis phases by further down-regulating miR-155 expression and increasing both C/Ebpβ and Creb mRNA and protein levels. At variance, TNFα inhibited 3T3-L1 adipogenesis and abolished AS effects on miR-155, C/Ebpβ, and Creb expression. However, in cells exposed to TNFα, CAde improved adipocyte differentiation and restored the AS effects on miRNA and gene expression at early time points. In conclusion, this study identified miR-155 down-regulation as part of the mechanism through which CAde enhances adipogenesis of pre-adipocytes in vitro. Furthermore, it provides evidence of CAde efficacy against TNFα negative effects on adipogenesis.
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Affiliation(s)
- Michele Campitelli
- URT Genomics of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, 80131 Naples, Italy; (M.C.); (A.D.); (G.C.); (C.N.); (I.P.); (A.L.); (S.d.S.); (P.F.); (F.B.)
- Department of Translational Medicine, Federico II University of Naples, 80131 Naples, Italy
| | - Antonella Desiderio
- URT Genomics of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, 80131 Naples, Italy; (M.C.); (A.D.); (G.C.); (C.N.); (I.P.); (A.L.); (S.d.S.); (P.F.); (F.B.)
- Department of Translational Medicine, Federico II University of Naples, 80131 Naples, Italy
| | - Giuseppe Cacace
- URT Genomics of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, 80131 Naples, Italy; (M.C.); (A.D.); (G.C.); (C.N.); (I.P.); (A.L.); (S.d.S.); (P.F.); (F.B.)
- Department of Translational Medicine, Federico II University of Naples, 80131 Naples, Italy
| | - Cecilia Nigro
- URT Genomics of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, 80131 Naples, Italy; (M.C.); (A.D.); (G.C.); (C.N.); (I.P.); (A.L.); (S.d.S.); (P.F.); (F.B.)
- Department of Translational Medicine, Federico II University of Naples, 80131 Naples, Italy
| | - Immacolata Prevenzano
- URT Genomics of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, 80131 Naples, Italy; (M.C.); (A.D.); (G.C.); (C.N.); (I.P.); (A.L.); (S.d.S.); (P.F.); (F.B.)
- Department of Translational Medicine, Federico II University of Naples, 80131 Naples, Italy
| | - Alessia Leone
- URT Genomics of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, 80131 Naples, Italy; (M.C.); (A.D.); (G.C.); (C.N.); (I.P.); (A.L.); (S.d.S.); (P.F.); (F.B.)
- Department of Translational Medicine, Federico II University of Naples, 80131 Naples, Italy
| | - Sonia de Simone
- URT Genomics of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, 80131 Naples, Italy; (M.C.); (A.D.); (G.C.); (C.N.); (I.P.); (A.L.); (S.d.S.); (P.F.); (F.B.)
- Department of Translational Medicine, Federico II University of Naples, 80131 Naples, Italy
| | - Pietro Campiglia
- Department of Pharmacy, University of Salerno, 84084 Fisciano, Italy;
- European Biomedical Research Institute of Salerno, 84125 Salerno, Italy
| | - Pietro Formisano
- URT Genomics of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, 80131 Naples, Italy; (M.C.); (A.D.); (G.C.); (C.N.); (I.P.); (A.L.); (S.d.S.); (P.F.); (F.B.)
- Department of Translational Medicine, Federico II University of Naples, 80131 Naples, Italy
| | - Gregory A. Raciti
- URT Genomics of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, 80131 Naples, Italy; (M.C.); (A.D.); (G.C.); (C.N.); (I.P.); (A.L.); (S.d.S.); (P.F.); (F.B.)
- Department of Translational Medicine, Federico II University of Naples, 80131 Naples, Italy
- Correspondence: (G.A.R.); (C.M.); Tel.: +39-081-746-3045 (G.A.R.); +39-081-746-3248 (C.M.)
| | - Francesco Beguinot
- URT Genomics of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, 80131 Naples, Italy; (M.C.); (A.D.); (G.C.); (C.N.); (I.P.); (A.L.); (S.d.S.); (P.F.); (F.B.)
- Department of Translational Medicine, Federico II University of Naples, 80131 Naples, Italy
| | - Claudia Miele
- URT Genomics of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, 80131 Naples, Italy; (M.C.); (A.D.); (G.C.); (C.N.); (I.P.); (A.L.); (S.d.S.); (P.F.); (F.B.)
- Department of Translational Medicine, Federico II University of Naples, 80131 Naples, Italy
- Correspondence: (G.A.R.); (C.M.); Tel.: +39-081-746-3045 (G.A.R.); +39-081-746-3248 (C.M.)
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Chemello F, Grespi F, Zulian A, Cancellara P, Hebert-Chatelain E, Martini P, Bean C, Alessio E, Buson L, Bazzega M, Armani A, Sandri M, Ferrazza R, Laveder P, Guella G, Reggiani C, Romualdi C, Bernardi P, Scorrano L, Cagnin S, Lanfranchi G. Transcriptomic Analysis of Single Isolated Myofibers Identifies miR-27a-3p and miR-142-3p as Regulators of Metabolism in Skeletal Muscle. Cell Rep 2020; 26:3784-3797.e8. [PMID: 30917329 DOI: 10.1016/j.celrep.2019.02.105] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2018] [Revised: 06/29/2018] [Accepted: 02/26/2019] [Indexed: 12/27/2022] Open
Abstract
Skeletal muscle is composed of different myofiber types that preferentially use glucose or lipids for ATP production. How fuel preference is regulated in these post-mitotic cells is largely unknown, making this issue a key question in the fields of muscle and whole-body metabolism. Here, we show that microRNAs (miRNAs) play a role in defining myofiber metabolic profiles. mRNA and miRNA signatures of all myofiber types obtained at the single-cell level unveiled fiber-specific regulatory networks and identified two master miRNAs that coordinately control myofiber fuel preference and mitochondrial morphology. Our work provides a complete and integrated mouse myofiber type-specific catalog of gene and miRNA expression and establishes miR-27a-3p and miR-142-3p as regulators of lipid use in skeletal muscle.
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Affiliation(s)
- Francesco Chemello
- Department of Biology, University of Padova, Via Ugo Bassi 58/b, 35131 Padova, Italy; CRIBI Biotechnology Centre, University of Padova, Via Ugo Bassi 58/b, 35131 Padova, Italy
| | - Francesca Grespi
- Department of Biology, University of Padova, Via Ugo Bassi 58/b, 35131 Padova, Italy; Venetian Institute of Molecular Medicine, Via Orus 2, 35131 Padova, Italy
| | - Alessandra Zulian
- Department of Biomedical Sciences, University of Padova, Via Ugo Bassi 58/b, 35131 Padova, Italy
| | - Pasqua Cancellara
- Department of Biomedical Sciences, University of Padova, Via Ugo Bassi 58/b, 35131 Padova, Italy
| | - Etienne Hebert-Chatelain
- Department of Biology, University of Padova, Via Ugo Bassi 58/b, 35131 Padova, Italy; Venetian Institute of Molecular Medicine, Via Orus 2, 35131 Padova, Italy
| | - Paolo Martini
- Department of Biology, University of Padova, Via Ugo Bassi 58/b, 35131 Padova, Italy
| | - Camilla Bean
- Department of Biology, University of Padova, Via Ugo Bassi 58/b, 35131 Padova, Italy; Venetian Institute of Molecular Medicine, Via Orus 2, 35131 Padova, Italy
| | - Enrico Alessio
- Department of Biology, University of Padova, Via Ugo Bassi 58/b, 35131 Padova, Italy; CRIBI Biotechnology Centre, University of Padova, Via Ugo Bassi 58/b, 35131 Padova, Italy
| | - Lisa Buson
- Department of Biology, University of Padova, Via Ugo Bassi 58/b, 35131 Padova, Italy
| | - Martina Bazzega
- Department of Biology, University of Padova, Via Ugo Bassi 58/b, 35131 Padova, Italy
| | - Andrea Armani
- Venetian Institute of Molecular Medicine, Via Orus 2, 35131 Padova, Italy
| | - Marco Sandri
- Venetian Institute of Molecular Medicine, Via Orus 2, 35131 Padova, Italy; Department of Biomedical Sciences, University of Padova, Via Ugo Bassi 58/b, 35131 Padova, Italy; CIR-Myo Myology Center, University of Padova, Via Ugo Bassi 58/b, 35131 Padova, Italy
| | - Ruggero Ferrazza
- Department of Physics, University of Trento, Via Sommarive 14, 38123 Povo (Trento), Italy
| | - Paolo Laveder
- Department of Biology, University of Padova, Via Ugo Bassi 58/b, 35131 Padova, Italy
| | - Graziano Guella
- Department of Physics, University of Trento, Via Sommarive 14, 38123 Povo (Trento), Italy
| | - Carlo Reggiani
- Department of Biomedical Sciences, University of Padova, Via Ugo Bassi 58/b, 35131 Padova, Italy
| | - Chiara Romualdi
- Department of Biology, University of Padova, Via Ugo Bassi 58/b, 35131 Padova, Italy
| | - Paolo Bernardi
- Department of Biomedical Sciences, University of Padova, Via Ugo Bassi 58/b, 35131 Padova, Italy
| | - Luca Scorrano
- Department of Biology, University of Padova, Via Ugo Bassi 58/b, 35131 Padova, Italy; Venetian Institute of Molecular Medicine, Via Orus 2, 35131 Padova, Italy
| | - Stefano Cagnin
- Department of Biology, University of Padova, Via Ugo Bassi 58/b, 35131 Padova, Italy; CRIBI Biotechnology Centre, University of Padova, Via Ugo Bassi 58/b, 35131 Padova, Italy; CIR-Myo Myology Center, University of Padova, Via Ugo Bassi 58/b, 35131 Padova, Italy.
| | - Gerolamo Lanfranchi
- Department of Biology, University of Padova, Via Ugo Bassi 58/b, 35131 Padova, Italy; CRIBI Biotechnology Centre, University of Padova, Via Ugo Bassi 58/b, 35131 Padova, Italy; CIR-Myo Myology Center, University of Padova, Via Ugo Bassi 58/b, 35131 Padova, Italy.
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SVF-derived extracellular vesicles carry characteristic miRNAs in lipedema. Sci Rep 2020; 10:7211. [PMID: 32350368 PMCID: PMC7190633 DOI: 10.1038/s41598-020-64215-w] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Accepted: 04/08/2020] [Indexed: 12/15/2022] Open
Abstract
Lipedema is a chronic, progressive disease of adipose tissue with lack of consistent diagnostic criteria. The aim of this study was a thorough comparative characterization of extracellular microRNAs (miRNAs) from the stromal vascular fraction (SVF) of healthy and lipedema adipose tissue. For this, we analyzed 187 extracellular miRNAs in concentrated conditioned medium (cCM) and specifically in small extracellular vesicles (sEVs) enriched thereof by size exclusion chromatography. No significant difference in median particle size and concentration was observed between sEV fractions in healthy and lipedema. We found the majority of miRNAs located predominantly in cCM compared to sEV enriched fraction. Surprisingly, hierarchical clustering of the most variant miRNAs showed that only sEVmiRNA profiles – but not cCMmiRNAs – were impacted by lipedema. Seven sEVmiRNAs (miR–16-5p, miR-29a-3p, miR-24-3p, miR-454-p, miR–144-5p, miR-130a-3p, let-7c-5p) were differently regulated in lipedema and healthy individuals, whereas only one cCMmiRNA (miR-188-5p) was significantly downregulated in lipedema. Comparing SVF from healthy and lipedema patients, we identified sEVs as the lipedema relevant miRNA fraction. This study contributes to identify the potential role of SVF secreted miRNAs in lipedema.
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73
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Zhang Y, Guo X, Pei J, Chu M, Ding X, Wu X, Liang C, Yan P. CircRNA Expression Profile during Yak Adipocyte Differentiation and Screen Potential circRNAs for Adipocyte Differentiation. Genes (Basel) 2020; 11:E414. [PMID: 32290214 PMCID: PMC7230347 DOI: 10.3390/genes11040414] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Revised: 03/26/2020] [Accepted: 04/07/2020] [Indexed: 12/22/2022] Open
Abstract
The yak (Bos grunniens) is subjected to nutritional deficiency during the whole winter grazing season; deciphering the adipose metabolism and energy homeostasis under cold and nutrients stress conditions could be a novel way to understand the specific mechanism of energy metabolism. Circular RNAs (circRNAs) have elucidated that they play a key role in many biological events, but the regulatory function of adipose development remains mostly unknown. Therefore, the expression pattern of circRNAs were identified for the first time during yak adipocyte differentiation to gain insight into their potential functional involvement in bovine adipogenesis. We detected 7203 circRNA candidates, most of them contained at least two exons, and multiple circRNA isoforms could be generated from one parental gene. Analysis of differential expression circRNAs displayed that 136 circRNAs were differentially expressed at day 12 (Ad) after adipocyte differentiation, compared with the control at day 0 (Pread 0), while 7 circRNAs were detected on day 2. Sanger sequencing validated that six circRNAs had head-to-tail junction, and quantitative real-time PCR (qPCR) results revealed that the expression patterns of ten circRNAs were consistent with their expression levels from RNA-sequencing (RNA-seq) data. We further predicted the networks of circRNA-miRNA-gene based on miRNAs sponging by circRNAs, in which genes were participated in the adipocyte differentiation-related signaling pathways. After that, we constructed several adipocyte differentiation-related ceRNAs and revealed six circRNAs (novel_circ_0009127, novel_circ_0000628, novel_circ_0011513, novel_circ_0010775, novel_circ_0006981 and novel_circ_0001494) were related to adipogenesis. Furthermore, we analyzed the homology among yak, human and mouse circRNAs and found that 3536 yak circRNAs were homologous to human and mouse circRNAs. In conclusion, these findings provide a solid basis for the investigation of yak adipocyte differentiation-related circRNAs and serve as a great reference to study the energy metabolism of high-altitude animals.
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Affiliation(s)
- Yongfeng Zhang
- State Key Laboratory of Grassland Agro-ecosystems, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou 730020, China;
| | - Xian Guo
- Key laboratory of yak Breeding Engineering Gansu Province, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou 730050, China; (X.G.); (J.P.); (M.C.); (X.D.); (X.W.); (C.L.)
| | - Jie Pei
- Key laboratory of yak Breeding Engineering Gansu Province, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou 730050, China; (X.G.); (J.P.); (M.C.); (X.D.); (X.W.); (C.L.)
| | - Min Chu
- Key laboratory of yak Breeding Engineering Gansu Province, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou 730050, China; (X.G.); (J.P.); (M.C.); (X.D.); (X.W.); (C.L.)
| | - Xuezhi Ding
- Key laboratory of yak Breeding Engineering Gansu Province, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou 730050, China; (X.G.); (J.P.); (M.C.); (X.D.); (X.W.); (C.L.)
| | - Xiaoyun Wu
- Key laboratory of yak Breeding Engineering Gansu Province, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou 730050, China; (X.G.); (J.P.); (M.C.); (X.D.); (X.W.); (C.L.)
| | - Chunnina Liang
- Key laboratory of yak Breeding Engineering Gansu Province, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou 730050, China; (X.G.); (J.P.); (M.C.); (X.D.); (X.W.); (C.L.)
| | - Ping Yan
- State Key Laboratory of Grassland Agro-ecosystems, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou 730020, China;
- Key laboratory of yak Breeding Engineering Gansu Province, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou 730050, China; (X.G.); (J.P.); (M.C.); (X.D.); (X.W.); (C.L.)
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74
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Correlation of serum vitamin D, adipose tissue vitamin D receptor, and peroxisome proliferator-activated receptor γ in women with gestational diabetes mellitus. Chin Med J (Engl) 2020; 132:2612-2620. [PMID: 31651513 PMCID: PMC6846247 DOI: 10.1097/cm9.0000000000000480] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
Background: Gestational diabetes mellitus (GDM) is a common complication during pregnancy. Obesity and overweight are closely related to metabolic diseases and diabetes. However, the role of adipose tissue in the pathogenesis of GDM remains to be studied. The aim of this study was to investigate the correlation of vitamin D (VD) levels, VD receptor (VDR), and peroxisome proliferator-activated receptor γ (PPARγ) expression with GDM in overweight or obese women. Methods: One hundred and forty pregnant women with full-term single-birth cesarean-section were selected as the study subjects and grouped (70 GDM women, including 35 non-overweight/non-obese women [group G1] and 35 women with overweight or obesity [group G2]; 70 pregnant women with normal glucose tolerance, including 35 non-overweight/non-obese women [group N1] and 35 overweight/obese women [group N2]). The levels of serum VD, blood biochemistry, and adiponectin were compared in these women. Subcutaneous adipose tissue was isolated from the abdominal wall incision. VDR and PPARγ messenger RNA (mRNA) transcript levels in these adipose tissues were quantified by real-time polymerase chain reaction. The differences between the levels of PPARγ protein and phosphorylated PPARγ Ser273 were detected by Western blotting. Results: The serum VD level of GDM women was lower in comparison to that of women with normal glucose tolerance (G1 vs. N1: 20.62 ± 7.87 ng/mL vs. 25.85 ± 7.29 ng/mL, G2 vs. N2: 17.06 ± 6.74 ng/mL vs. 21.62 ± 7.18 ng/mL, P < 0.05), and the lowest in overweight/obese GDM women. VDR and PPARγ mRNA expression was higher in the adipose tissues of GDM women in comparison to that of women with normal glucose tolerance (VDR mRNA: G1 vs. N1: 210.00 [90.58–311.46] vs. 89.34 [63.74–159.92], G2 vs. N2: 298.67 [170.84–451.25] vs. 198.28 [119.46–261.23], PPARγ mRNA: G1 vs. N1: 100.72 [88.61–123.87] vs. 87.52 [66.37–100.04], G2 vs. N2: 117.33 [100.08–149.00] vs. 89.90 [76.95–109.09], P < 0.05), and their expression was the highest in GDM + overweight/obese women. VDR mRNA levels positively correlated with the pre-pregnancy body mass index (BMI), pre-delivery BMI, fasting blood glucose (FBG), homeostasis model assessment of insulin resistance (HOMA-IR), and PPARγ mRNA while it negatively correlated with the VD and the adiponectin levels (r = 0.395, 0.336, 0.240, 0.190, 0.235, –0.350, –0.294, respectively, P < 0.05). The degree of PPARγ Ser273 phosphorylation increased in obese and GDM pregnant women. PPARγ mRNA levels positively correlated with pre-pregnancy BMI, pre-delivery BMI, FBG, HOMA-IR, serum total cholesterol, triglyceride, free fatty acid, and VDR mRNA, while it negatively correlated with the VD and adiponectin levels (r = 0.276, 0.199, 0.210, 0.230, 0.182, 0.214, 0.270, 0.235, –0.232, –0.199, respectively, P < 0.05). Conclusions: Both GDM and overweight/obese women had decreased serum VD levels and up-regulated VDR and PPARγ mRNA expression in adipose tissue, which was further higher in the overweight or obese women with GDM. VD may regulate the formation and differentiation of adipocytes through the VDR and PPARγ pathways and participate in the occurrence of GDM.
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75
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Wang W, Li X, Ding N, Teng J, Zhang S, Zhang Q, Tang H. miR-34a regulates adipogenesis in porcine intramuscular adipocytes by targeting ACSL4. BMC Genet 2020; 21:33. [PMID: 32171241 PMCID: PMC7073017 DOI: 10.1186/s12863-020-0836-7] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2019] [Accepted: 03/04/2020] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Intramuscular fat (IMF) content is an important factor in porcine meat quality. Previously, we showed that miR-34a was less abundant in liver tissue from pigs with higher backfat thickness, compared to pigs with lower backfat thickness. The purpose of this present study was to explore the role of miR-34a in adipogenesis. RESULT Bioinformatics analysis identified Acyl-CoA synthetase long chain family member 4 (ACSL4) as a putative target of miR-34a. Using a luciferase reporter assay, we verified that miR-34a binds the ACSL4 mRNA at the 3'UTR. To examine the role of the miR-34a-ACSL4 interaction in IMF deposition in the pig, mRNA and protein expression of the ACSL4 gene was measured in primary intramuscular preadipocytes transfected with miR-34a mimic and inhibitor. Our results showed that ACSL4 is expressed throughout the entire differentiation process in pig preadipocytes, similar to the lipogenesis-associated genes PPARγ and aP2. Transfection with miR-34a mimic reduced lipid droplet formation during adipogenesis, while miR-34a inhibitor increased lipid droplet accumulation. Transfection with miR-34a mimic also reduced the mRNA and protein expression of ACSL4 and lipogenesis genes, including PPARγ, aP2, and SREBP-1C, but increased the expression of steatolysis genes such as ATGL and Sirt1. In contrast, the miR-34a inhibitor had the opposite effect on gene expression. Further, knockdown of ACSL4 decreased lipid droplet accumulation. CONCLUSIONS Our results support the hypothesis that miR-34a regulates intramuscular fat deposition in porcine adipocytes by targeting ACSL4.
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Affiliation(s)
- Wenwen Wang
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, No. 61, Daizong Street, Tai’an City, 271018 Shandong Province China
| | - Xiuxiu Li
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, No. 61, Daizong Street, Tai’an City, 271018 Shandong Province China
| | - Ning Ding
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, No. 61, Daizong Street, Tai’an City, 271018 Shandong Province China
| | - Jun Teng
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, No. 61, Daizong Street, Tai’an City, 271018 Shandong Province China
| | - Shen Zhang
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, No. 61, Daizong Street, Tai’an City, 271018 Shandong Province China
| | - Qin Zhang
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, No. 61, Daizong Street, Tai’an City, 271018 Shandong Province China
| | - Hui Tang
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, No. 61, Daizong Street, Tai’an City, 271018 Shandong Province China
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76
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Raza SHA, Kaster N, Khan R, Abdelnour SA, El-Hack MEA, Khafaga AF, Taha A, Ohran H, Swelum AA, Schreurs NM, Zan L. The Role of MicroRNAs in Muscle Tissue Development in Beef Cattle. Genes (Basel) 2020; 11:genes11030295. [PMID: 32168744 PMCID: PMC7140828 DOI: 10.3390/genes11030295] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Revised: 02/28/2020] [Accepted: 03/06/2020] [Indexed: 02/06/2023] Open
Abstract
In this review, we highlight information on microRNA (miRNA) identification and functional characterization in the beef for muscle and carcass composition traits, with an emphasis on Qinchuan beef cattle, and discuss the current challenges and future directions for the use of miRNA as a biomarker in cattle for breeding programs to improve meat quality and carcass traits. MicroRNAs are endogenous and non-coding RNA that have the function of making post-transcriptional modifications during the process of preadipocyte differentiation in mammals. Many studies claim that diverse miRNAs have an impact on adipogenesis. Furthermore, their target genes are associated with every phase of adipocyte differentiation. It has been confirmed that, during adipogenesis, several miRNAs are differentially expressed, including miR-204, miR-224, and miR-33. The development of mammalian skeletal muscle is sequentially controlled by somite commitment into progenitor cells, followed by their fusion and migration, the proliferation of myoblasts, and final modification into fast- and slow-twitch muscle fibers. It has been reported that miRNA in the bovine MEG3-DIO3 locus has a regulatory function for myoblast differentiation. Likewise, miR-224 has been associated with controlling the differentiation of bovine adipocytes by targeting lipoprotein lipase. Through the posttranscriptional downregulation of KLF6, miR-148a-3p disrupts the proliferation of bovine myoblasts and stimulates apoptosis while the miR-23a~27a~24-2 cluster represses adipogenesis. Additional to influences on muscle and fat, bta-mir-182, bta-mir-183, and bta-mir-338 represent regulators of proteolysis in muscle, which influences meat tenderness.
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Affiliation(s)
- Sayed Haidar Abbas Raza
- College of Animal Science and Technology, Northwest A&F University, Yangling 712100, Shaanxi, China; (S.H.A.R.); (N.K.); (R.K.)
| | - Nurgulsim Kaster
- College of Animal Science and Technology, Northwest A&F University, Yangling 712100, Shaanxi, China; (S.H.A.R.); (N.K.); (R.K.)
| | - Rajwali Khan
- College of Animal Science and Technology, Northwest A&F University, Yangling 712100, Shaanxi, China; (S.H.A.R.); (N.K.); (R.K.)
| | - Sameh A. Abdelnour
- Department of Animal Production, Faculty of Agriculture, Zagazig University, Zagazig 44511, Egypt;
| | - Mohamed E. Abd El-Hack
- Department of Poultry, Faculty of Agriculture, Zagazig University, Zagazig 44511, Egypt;
| | - Asmaa F. Khafaga
- Department of Pathology, Faculty of Veterinary Medicine, Alexandria University, Edfina 22758, Egypt;
| | - Ayman Taha
- Department of Animal Husbandry and Animal Wealth Development, Faculty of Veterinary Medicine, Alexandria University, Edfina 22578, Egypt;
| | - Husein Ohran
- Department of Physiology, University of Sarajevo, Veterinary Faculty, Zmaja od Bosne 90, 71 000 Sarajevo, Bosnia and Herzegovina;
| | - Ayman A. Swelum
- Department of Theriogenology, Faculty of Veterinary Medicine, Zagazig University, Zagazig 44511, Egypt;
| | - Nicola M. Schreurs
- Animal Science, School of Agriculture and Environment, Massey University, Palmerston North 4442, New Zealand;
| | - Linsen Zan
- College of Animal Science and Technology, Northwest A&F University, Yangling 712100, Shaanxi, China; (S.H.A.R.); (N.K.); (R.K.)
- National Beef Cattle Improvement Center, Northwest A&F University, Yangling 712100, Shaanxi, China
- Correspondence: ; Tel.: +86-2987-091-923
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77
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Qi J, Luo X, Ma Z, Zhang B, Li S, Zhang J. Downregulation of miR-26b-5p, miR-204-5p, and miR-497-3p Expression Facilitates Exercise-Induced Physiological Cardiac Hypertrophy by Augmenting Autophagy in Rats. Front Genet 2020; 11:78. [PMID: 32140172 PMCID: PMC7042403 DOI: 10.3389/fgene.2020.00078] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Accepted: 01/23/2020] [Indexed: 12/11/2022] Open
Abstract
Exercise-induced autophagy is associated with physiological left ventricular hypertrophy (LVH), and a growing body of evidence suggests that microRNAs (miRNAs) can regulate autophagy-related genes. However, the precise role of miRNAs in exercise induced autophagy in physiological LVH has not been fully defined. In this study, we investigated the microRNA–autophagy axis in physiological LVH and deciphered the underlying mechanism using a rat swimming exercise model. Rats were assigned to sedentary control (CON) and swimming exercise (EX) groups; those in the latter group completed a 10-week swimming exercise without any load. For in vitro studies, H9C2 cardiomyocyte cell line was stimulated with IGF-1 for hypertrophy. We found a significant increase in autophagy activity in the hearts of rats with exercise-induced physiological hypertrophy, and miRNAs showed a high score in the pathway enriched in autophagy. Moreover, the expression levels of miR-26b-5p, miR-204-5p, and miR-497-3p showed an obvious increase in rat hearts. Adenovirus-mediated overexpression of miR-26b-5p, miR-204-5p, and miR-497-3p markedly attenuated IGF-1-induced hypertrophy in H9C2 cells by suppressing autophagy. Furthermore, miR-26b-5p, miR-204-5p, and miR-497-3p attenuated autophagy in H9C2 cells through targeting ULK1, LC3B, and Beclin 1, respectively. Taken together, our results demonstrate that swimming exercise induced physiological LVH, at least in part, by modulating the microRNA–autophagy axis, and that miR-26b-5p, miR-204-5p, and miR-497-3p may help distinguish physiological and pathological LVH.
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Affiliation(s)
- Jie Qi
- College of Physical Education, Shanghai Normal University, Shanghai, China
| | - Xue Luo
- Medical College, Yangzhou Polytechnic College, Yangzhou, China
| | - Zhichao Ma
- The School of Physical Education, Wuhan Business University, Wuhan, China
| | - Bo Zhang
- College of Physical Education, Shanghai Normal University, Shanghai, China
| | - Shuyan Li
- College of Physical Education, Yangzhou University, Yangzhou, China
| | - Jun Zhang
- College of Physical Education, Shanghai Normal University, Shanghai, China
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78
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Khan R, Raza SHA, Junjvlieke Z, Wang X, Wang H, Cheng G, Mei C, Elsaeid Elnour I, Zan L. Bta-miR-149-5p inhibits proliferation and differentiation of bovine adipocytes through targeting CRTCs at both transcriptional and posttranscriptional levels. J Cell Physiol 2020; 235:5796-5810. [PMID: 32003022 DOI: 10.1002/jcp.29513] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Accepted: 01/10/2020] [Indexed: 12/13/2022]
Abstract
MicroRNAs are small, single stranded, and noncoding RNAs that have been proven to be potent regulators of adipogenesis. However, the role of bta-miR-149-5p in regulating bovine adipogenesis is still unclear. Expression profiling in different stages of adipogenesis revealed that bta-miR-149-5p was enriched in the proliferation stage, and also on Day 9 of differentiation in bovine adipocytes. Our gain of function study showed that bta-miR-149-5p can negatively regulate both bovine adipocyte proliferation and differentiation. Overexpression of bta-miR-149-5p suppressed the expression of proliferation marker genes at both the messenger RNA (mRNA) and protein levels, markedly decreased the percentage of S-phase cells, decreased the number of EdU-stained cells, and substantially reduced adipocyte proliferation vitality in the cell count assay. Collectively, these findings elucidated that bta-miR-149-5p inhibits adipocyte proliferation. Furthermore, overexpression of bta-miR-149-5p also suppressed the expression of adipogenic genes at both the mRNA and protein levels, inhibited lipid accumulation, and reduced the secretion of adiponectin in bovine adipocytes. Furthermore, a luciferase activity assay explored how bta-miR-149-5p targeted CRTCs (CRTC1 and CRTC2) directly. This targeting was further validated by the mRNA and protein level expression of CRTC1 and CRTC2, which were down regulated by bta-miR-149-5p overexpression. Moreover, bta-miR-149-5p indirectly targeted CRTC1 and CRTC2 through regulating their key transcription factors. Overexpression of bta-miR-149-5p suppressed the expression of SMAD3, while enriched the expression of NRF1, which are the key transcription factors and proven regulators of CRTC1. Overexpression of bta-miR-149-5p also repressed the expression of C/EBPγ, XBP1, INSM1, and ZNF263, which are the key regulators of CRTCs, at both the mRNA and protein levels. These findings suggest that bta-miR-149-5p is a negative regulator of CRTC1 and CRTC2 both at transcriptional and posttranscriptional level. Taken together, these findings suggest that bta-miR-149-5p can regulate adipogenesis, which implies that bta-miR-149-5p could be a target for increasing intramuscular fat in beef cattle.
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Affiliation(s)
- Rajwali Khan
- College of Animal Science and Technology, Northwest A&F University, Xianyang, Yangling, China.,Livestock Management, Breeding and Genetics, The University of Agriculture, Peshawar, Khyber Pakhtunkhwa, Pakistan
| | - Sayed Haidar Abbas Raza
- College of Animal Science and Technology, Northwest A&F University, Xianyang, Yangling, China
| | - Zainaguli Junjvlieke
- College of Animal Science and Technology, Northwest A&F University, Xianyang, Yangling, China
| | - Xiaoyu Wang
- College of Animal Science and Technology, Northwest A&F University, Xianyang, Yangling, China
| | - Hongbao Wang
- College of Animal Science and Technology, Northwest A&F University, Xianyang, Yangling, China.,National Beef Cattle Improvement Research Center, Xianyang, Yangling, China
| | - Gong Cheng
- College of Animal Science and Technology, Northwest A&F University, Xianyang, Yangling, China.,National Beef Cattle Improvement Research Center, Xianyang, Yangling, China
| | - Chugang Mei
- College of Animal Science and Technology, Northwest A&F University, Xianyang, Yangling, China
| | - Ibrahim Elsaeid Elnour
- College of Animal Science and Technology, Northwest A&F University, Xianyang, Yangling, China
| | - Linsen Zan
- College of Animal Science and Technology, Northwest A&F University, Xianyang, Yangling, China.,National Beef Cattle Improvement Research Center, Xianyang, Yangling, China
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Cavallari C, Figliolini F, Tapparo M, Cedrino M, Trevisan A, Positello L, Rispoli P, Solini A, Migliaretti G, Camussi G, Brizzi MF. miR-130a and Tgfβ Content in Extracellular Vesicles Derived from the Serum of Subjects at High Cardiovascular Risk Predicts their In-Vivo Angiogenic Potential. Sci Rep 2020; 10:706. [PMID: 31959759 PMCID: PMC6971269 DOI: 10.1038/s41598-019-55783-7] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2019] [Accepted: 12/03/2019] [Indexed: 12/11/2022] Open
Abstract
Serum-derived extracellular vesicles (sEV) from healthy donors display in-vivo pro-angiogenic properties. To identify patients that may benefit from autologous sEV administration for pro-angiogenic purposes, sEV angiogenic capability has been evaluated in type 2 diabetic (T2DM) subjects (D), in obese individuals with (OD) and without (O) T2DM, and in subjects with ischemic disease (IC) (9 patients/group). sEV display different angiogenic properties in such cluster of individuals. miRNomic profile and TGFβ content in sEV were evaluated. We found that miR-130a and TGFβ content correlates with sEV in-vitro and in-vivo angiogenic properties, particularly in T2DM patients. Ingenuity Pathway Analysis (IPA) identified a number of genes as among the most significant miR-130a interactors. Gain-of-function experiments recognized homeoboxA5 (HOXA5) as a miR-130a specific target. Finally, ROC curve analyses revealed that sEV ineffectiveness could be predicted (Likelihood Ratio+ (LH+) = 3.3 IC 95% from 2.6 to 3.9) by comparing miR-130a and TGFβ content 'in Series'. We demonstrate that sEV from high cardiovascular risk patients have different angiogenic properties and that miR-130a and TGFβ sEV content predicts 'true ineffective sEVs'. These results provide the rationale for the use of these assays to identify patients that may benefit from autologous sEV administration to boost the angiogenetic process.
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Affiliation(s)
| | | | - Marta Tapparo
- Department of Medical Sciences, University of Turin, Turin, Italy
| | - Massimo Cedrino
- Department of Medical Sciences, University of Turin, Turin, Italy
| | | | | | - Pietro Rispoli
- Department of Surgical Sciences, University of Turin, Turin, Italy
| | - Anna Solini
- Department of Surgical, Medical, Molecular and Critical Area Pathology, University of Pisa, Pisa, Italy
| | - Giuseppe Migliaretti
- Department of Public Health and Pediatric Sciences, University of Turin, Turin, Italy
| | - Giovanni Camussi
- 2i3T Scarl, University of Turin, Turin, Italy. .,Department of Medical Sciences, University of Turin, Turin, Italy.
| | - Maria Felice Brizzi
- 2i3T Scarl, University of Turin, Turin, Italy. .,Department of Medical Sciences, University of Turin, Turin, Italy.
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80
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Exploration of targets regulated by miR-125b in porcine adipocytes. In Vitro Cell Dev Biol Anim 2020; 56:103-111. [PMID: 31912457 DOI: 10.1007/s11626-019-00427-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Accepted: 11/25/2019] [Indexed: 12/14/2022]
Abstract
MicroRNA (miRNA) has been proved to play a key role in lipid metabolism. In our previous study, miR-125b was validated to be differentially expressed in preadipocytes and adipocytes, which was also proved to involve in lipid metabolism. To explore the comprehensive targets of miR-125b in adipocytes, isobaric tag for relative and absolute quantitation (iTRAQ) analysis was performed to obtain differentially expressed proteins in adipocytes comparing negative control (NC) and miR-125b mimic, combining with digital gene expression (DGE) profiling of mRNA incorporated into RNA-induced silencing complex (RISC) pulled down by biotinylated miR-125b mimic and targets prediction of miR-125b by three algorithms, acyl-CoA dehydrogenase short chain (ACADS) and mitochondrial trans-2-enoyl-CoA reductase (MECR) were screened out as miR-125b direct targets. Luciferase reporter assay further validated that miR-125b mimic significantly inhibited the luciferase activity by targeting wild type (WT) 3'-UTR compared with NC. qPCR analysis of ACADS and MECR mRNA from adipose tissues of miR-125b knockout (KO) mice further confirmed the inhibition of miR-125b on ACADS and MECR expressions. Here we report miR-125b play a vital role in maintaining homeostasis of fatty acid metabolism by targeting key enzyme ACADS and MECR in the process of fatty acid elongation and degradation.
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81
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Zhang K, Yang X, Zhao Q, Li Z, Fu F, Zhang H, Zheng M, Zhang S. Molecular Mechanism of Stem Cell Differentiation into Adipocytes and Adipocyte Differentiation of Malignant Tumor. Stem Cells Int 2020; 2020:8892300. [PMID: 32849880 PMCID: PMC7441422 DOI: 10.1155/2020/8892300] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 07/07/2020] [Accepted: 07/27/2020] [Indexed: 02/07/2023] Open
Abstract
Adipogenesis is the process through which preadipocytes differentiate into adipocytes. During this process, the preadipocytes cease to proliferate, begin to accumulate lipid droplets, and develop morphologic and biochemical characteristics of mature adipocytes. Mesenchymal stem cells (MSCs) are a type of adult stem cells known for their high plasticity and capacity to generate mesodermal and nonmesodermal tissues. Many mature cell types can be generated from MSCs, including adipocyte, osteocyte, and chondrocyte. The differentiation of stem cells into multiple mature phenotypes is at the basis for tissue regeneration and repair. Cancer stem cells (CSCs) play a very important role in tumor development and have the potential to differentiate into multiple cell lineages. Accumulating evidence has shown that cancer cells can be induced to differentiate into various benign cells, such as adipocytes, fibrocytes, osteoblast, by a variety of small molecular compounds, which may provide new strategies for cancer treatment. Recent studies have reported that tumor cells undergoing epithelial-to-mesenchymal transition can be induced to differentiate into adipocytes. In this review, molecular mechanisms, signal pathways, and the roles of various biological processes in adipose differentiation are summarized. Understanding the molecular mechanism of adipogenesis and adipose differentiation of cancer cells may contribute to cancer treatments that involve inducing differentiation into benign cells.
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Affiliation(s)
- Kexin Zhang
- 1Department of Pathology, Tianjin Union Medical Center, Tianjin, China
- 2Nankai University School of Medicine, Nankai University, Tianjin, China
| | - Xudong Yang
- 3Tianjin Rehabilitation Center, Tianjin, China
| | - Qi Zhao
- 1Department of Pathology, Tianjin Union Medical Center, Tianjin, China
| | - Zugui Li
- 1Department of Pathology, Tianjin Union Medical Center, Tianjin, China
- 4Graduate School, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Fangmei Fu
- 1Department of Pathology, Tianjin Union Medical Center, Tianjin, China
- 4Graduate School, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Hao Zhang
- 1Department of Pathology, Tianjin Union Medical Center, Tianjin, China
- 4Graduate School, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Minying Zheng
- 1Department of Pathology, Tianjin Union Medical Center, Tianjin, China
| | - Shiwu Zhang
- 1Department of Pathology, Tianjin Union Medical Center, Tianjin, China
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82
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Zhang H, Chen T, Xiong J, Hu B, Luo J, Xi Q, Jiang Q, Sun J, Zhang Y. MiR-130a-3p Inhibits PRL Expression and Is Associated With Heat Stress-Induced PRL Reduction. Front Endocrinol (Lausanne) 2020; 11:92. [PMID: 32194503 PMCID: PMC7062671 DOI: 10.3389/fendo.2020.00092] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/03/2019] [Accepted: 02/13/2020] [Indexed: 01/14/2023] Open
Abstract
MicroRNAs (MiRNAs) play critical roles in the regulation of pituitary function. MiR-130a-3p has previously been found to be down-regulated in prolactinoma, but its roles in prolactin (PRL) regulation and the underlying mechanisms are still unclear. Heat stress has been shown to induce alteration of endocrine hormones and miRNAs expressions. However, there is limited information regarding the emerging roles of miRNAs in heat stress response. In this study, we transfected miR-130a-3p mimic into the pituitary adenoma cells (GH3 cells) to investigate the function of miR-130a-3p in regulating PRL. Our results showed that miR-130a-3p overexpression significantly decreased the PRL expression at both mRNA and protein levels. Subsequently, estrogen receptor α (ERα) was identified as a direct target of miR-130a-3p by bioinformatics prediction, luciferase reporter assay and western blotting assay. Furthermore, the inhibition of ERα caused by estrogen receptor antagonist significantly reduced the PRL expression. Overexpression of ERα rescued the suppressed expression of PRL caused by miR-130a-3p mimic. Besides, we also studied the effect of heat stress on PRL and miRNAs expressions. Interestingly, we found that heat stress reduced PRL and ERα expressions while it increased miR-130a-3p expression both in vitro and in vivo. Taken together, our results indicate that miR-130a-3p represses ERα by targeting its 3'UTR leading to a decrease in PRL expression, and miR-130a-3p is correlative with heat stress-induced PRL reduction, which provides a novel mechanism that miRNAs are involved in PRL regulation.
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Affiliation(s)
- Haojie Zhang
- Guangdong Province Key Laboratory of Animal Nutritional Regulation, National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, China
| | - Ting Chen
- Guangdong Province Key Laboratory of Animal Nutritional Regulation, National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, China
- Guangdong Engineering & Research Center for Woody Fodder Plants, South China Agricultural University, Guangzhou, China
| | - Jiali Xiong
- Guangdong Province Key Laboratory of Animal Nutritional Regulation, National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, China
| | - Baoyu Hu
- Guangdong Province Key Laboratory of Animal Nutritional Regulation, National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, China
| | - Junyi Luo
- Guangdong Province Key Laboratory of Animal Nutritional Regulation, National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, China
| | - Qianyun Xi
- Guangdong Province Key Laboratory of Animal Nutritional Regulation, National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, China
- Guangdong Engineering & Research Center for Woody Fodder Plants, South China Agricultural University, Guangzhou, China
| | - Qingyang Jiang
- Guangdong Province Key Laboratory of Animal Nutritional Regulation, National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, China
| | - Jiajie Sun
- Guangdong Province Key Laboratory of Animal Nutritional Regulation, National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, China
- Guangdong Engineering & Research Center for Woody Fodder Plants, South China Agricultural University, Guangzhou, China
- *Correspondence: Jiajie Sun
| | - Yongliang Zhang
- Guangdong Province Key Laboratory of Animal Nutritional Regulation, National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, China
- Guangdong Engineering & Research Center for Woody Fodder Plants, South China Agricultural University, Guangzhou, China
- Yongliang Zhang
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83
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Sun Y, Xia H, Lu X, Xu C, Li M, Chen Z, Yang Z. MicroRNA-141 participates in milk lipid metabolism by targeting SIRT1 in bovine mammary epithelial cells. ANIMAL PRODUCTION SCIENCE 2020. [DOI: 10.1071/an19593] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Context
The regulation of milk lipids is important for the evaluation of dairy cows’ performance. Lipids are produced and secreted by mammary gland under the regulation of steroid hormones, growth factors and microRNAs (miRNAs). MicroRNAs have been verified to be involved in numerous biological processes. Previous studies have shown that miR-141 is expressed at higher levels in dairy cows at peak lactation than in those at early lactation. However, the roles of miR-141 in bovine mammary epithelial cells (BMECs) and the mechanisms how it affects lipid metabolism are as yet unknown.
Aims
The aims of this study were to clarify (i) the molecular mechanisms of miR-141 in milk lipid metabolism, and (ii) how miR-141 affects milk lipid metabolism in BMECs.
Methods
Triglycerides were observed in BMECs using triglyceride analysis after overexpression or inhibition of miR-141; selected potential candidate genes that are targeted by miR-141 using TargetScan. The regulatory relationship among miR-141, SIRT1 gene and lipid metabolism-related genes (SREBF1, FASN and PPARγ) by using the dual luciferase assay, quantitative real-time PCR and western blotting.
Key results
Through overexpression or inhibition of miR-141 expression, we found that miR-141 promoted lipid metabolism in BMECs and an increase in triglycerides was observed in these cells. Further, miR-141 targets the 3′UTR of SIRT1 mRNA, and negative regulates the expression of SIRT1 gene in BMECs. Also, the expression levels of SREBF1, FASN and PPARγ, which are related to milk lipid metabolism, were also altered after overexpression miR-141.
Conclusions
Our results have revealed that miR-141 could promote milk lipid metabolism in BMECs by means of negative regulates SIRT1 gene and positive effects lipid metabolism-related genes (SREBF1, FASN and PPARγ) in BMECs.
Implications
Our research indicates that miR-141 could be considered a marker in cattle breeding to obtain high quality dairy products. It would be useful to study the function of miRNAs in milk lipid metabolism and synthesis. In the long term these findings might be helpful in developing practical means to improve the quality of ruminant milk.
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84
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Scudiero O, Pero R, Ranieri A, Terracciano D, Fimiani F, Cesaro A, Gentile L, Leggiero E, Laneri S, Moscarella E, Mazzaccara C, Frisso G, D'Alicandro G, Limongelli G, Pastore L, Calabrò P, Lombardo B. Childhood obesity: an overview of laboratory medicine, exercise and microbiome. Clin Chem Lab Med 2019; 58:1385-1406. [PMID: 31821163 DOI: 10.1515/cclm-2019-0789] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Accepted: 11/12/2019] [Indexed: 12/17/2022]
Abstract
In the last few years, a significant increase of childhood obesity incidence unequally distributed within countries and population groups has been observed, thus representing an important public health problem associated with several health and social consequences. Obese children have more than a 50% probability of becoming obese adults, and to develop pathologies typical of obese adults, that include type 2-diabetes, dyslipidemia and hypertension. Also environmental factors, such as reduced physical activity and increased sedentary activities, may also result in increased caloric intake and/or decreased caloric expenditure. In the present review, we aimed to identify and describe a specific panel of parameters in order to evaluate and characterize the childhood obesity status useful in setting up a preventive diagnostic approach directed at improving health-related behaviors and identifying predisposing risk factors. An early identification of risk factors for childhood obesity could definitely help in setting up adequate and specific clinical treatments.
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Affiliation(s)
- Olga Scudiero
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università degli Studi di Naples "Federico II", Napoli, Italy.,CEINGE-Biotecnologie Avanzate, Naples, Italy
| | - Raffaela Pero
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università degli Studi di Naples "Federico II", Napoli, Italy
| | - Annaluisa Ranieri
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università degli Studi di Naples "Federico II", Napoli, Italy.,CEINGE-Biotecnologie Avanzate, Naples, Italy
| | - Daniela Terracciano
- Dipartimento di Scienze Mediche Traslazionali, Università degli Studi di Naples "Federico II", Napoli, Italy
| | - Fabio Fimiani
- Divisione di Cardiologia, Dipartimento di Scienze Cardiotoraciche e Respiratorie, Università della Campania "Luigi Vanvitelli", Naples, Italy
| | - Arturo Cesaro
- Divisione di Cardiologia, Dipartimento di Scienze Cardiotoraciche e Respiratorie, Università della Campania "Luigi Vanvitelli", Naples, Italy
| | | | | | - Sonia Laneri
- Dipartimento di Farmacia, Università degli Studi di Naples "Federico II", Napoli, Italy
| | - Elisabetta Moscarella
- Dipartimento di Scienze Mediche Traslazionali, Università della Campania "Luigi Vanvitelli", Caserta, Italy.,Unità di Cardiologia, Ospedale "Sant'Anna e San Sebastiano", Caserta, Italy
| | - Cristina Mazzaccara
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università degli Studi di Naples "Federico II", Napoli, Italy.,CEINGE-Biotecnologie Avanzate, Naples, Italy
| | - Giulia Frisso
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università degli Studi di Naples "Federico II", Napoli, Italy.,CEINGE-Biotecnologie Avanzate, Naples, Italy
| | - Giovanni D'Alicandro
- Centro di Medicina dello Sport e delle Disabilità, Dipartimento di Neuroscienze e Riabilitazione, AORN, Santobono-Pausillipon, Naples, Italy
| | - Giuseppe Limongelli
- Dipartimento di Scienze Mediche Traslazionali, Università della Campania "Luigi Vanvitelli", Caserta, Italy
| | - Lucio Pastore
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università degli Studi di Naples "Federico II", Napoli, Italy.,CEINGE-Biotecnologie Avanzate, Naples, Italy
| | - Paolo Calabrò
- Dipartimento di Scienze Mediche Traslazionali, Università della Campania "Luigi Vanvitelli", Caserta, Italy.,Unità di Cardiologia, Ospedale "Sant'Anna e San Sebastiano", Caserta, Italy
| | - Barbara Lombardo
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università degli Studi di Naples "Federico II", Napoli, Italy.,CEINGE-Biotecnologie Avanzate, Naples, Italy
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85
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Manoel Alves J, Handerson Gomes Teles R, do Valle Gomes Gatto C, Muñoz VR, Regina Cominetti M, Garcia de Oliveira Duarte AC. Mapping Research in the Obesity, Adipose Tissue, and MicroRNA Field: A Bibliometric Analysis. Cells 2019; 8:E1581. [PMID: 31817583 PMCID: PMC6952878 DOI: 10.3390/cells8121581] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Revised: 11/19/2019] [Accepted: 11/20/2019] [Indexed: 02/07/2023] Open
Abstract
Recent studies have investigated the control of adipose tissue expansion and inflammatory process by microRNAs (miRNAs). These two processes are of great interest because both are associated with obesity and metabolic syndrome. However, despite the great relevance of the role of miRNAs in obesity and adipose tissue, no qualitative and quantitative analysis on the subject has been performed. Thus, we aimed to examine global research activity and current trends with respect to the interaction between obesity, adipose tissue and miRNAs through a bibliometric analysis. This research was performed on the Scopus database for publications containing miRNA, obesity, and adipose tissue keyword combinations. In total, 898 articles were analyzed and the most frequently occurring keywords were selected and clustered into three well-defined groups. As a result, first group of keywords pointed to the research area on miRNAs expressed in obesity-associated diseases. The second group demonstrated the regulation of the adipogenesis process by miRNAs, while the third group highlighted brown adipose tissue and thermogenesis as one of the latest global research trends related to the theme. The studies selected in this paper describe the expression and performance of different miRNAs in obesity and comorbidities. Most studies have focused on identifying miRNAs and signaling pathways associated with obesity, type 2 diabetes mellitus, and cardiovascular disease. Thus, the miRNA profile for these diseases may be used as biomarkers and therapeutic targets in the prevention and treatment of obesity-associated diseases.
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Affiliation(s)
- João Manoel Alves
- Department of Physical Education, Federal University of São Carlos (UFSCar), São Carlos 13565-905, SP, Brazil;
| | - Ramon Handerson Gomes Teles
- Department of Gerontology, Federal University of São Carlos (UFSCar), São Carlos 13565-905, SP, Brazil; (R.H.G.T.); (M.R.C.)
| | - Camila do Valle Gomes Gatto
- Laboratory of Biochemistry and Molecular Biology of Exercise, University of São Paulo (USP), São Paulo 05508-030, SP, Brazil;
| | - Vitor Rosetto Muñoz
- Laboratory of Molecular Biology of Exercise (LaBMEx), School of Applied Sciences, University of Campinas (UNICAMP), Limeira 13484-350, SP, Brazil;
| | - Márcia Regina Cominetti
- Department of Gerontology, Federal University of São Carlos (UFSCar), São Carlos 13565-905, SP, Brazil; (R.H.G.T.); (M.R.C.)
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86
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The Effect of MicroRNA-331-3p on Preadipocytes Proliferation and Differentiation and Fatty Acid Accumulation in Laiwu Pigs. BIOMED RESEARCH INTERNATIONAL 2019; 2019:9287804. [PMID: 31886267 PMCID: PMC6914919 DOI: 10.1155/2019/9287804] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Revised: 10/03/2019] [Accepted: 11/14/2019] [Indexed: 02/06/2023]
Abstract
Objective The proliferation and differentiation of preadipocytes are regulated by microRNAs (miRNAs), hormones, and other factors. This study aimed to investigate the effects of miR-331-3p on the proliferation and differentiation of preadipocytes in addition to fatty acid metabolism. Methods Preadipocytes were transfected with miR-331-3p mimics, miR-NC, or miR-331-3p inhibitor to explore its effect on cell proliferation and fatty acid accumulation. Furthermore, preadipocytes were transfected with pre-miR-331-3p, pcDNA3.1(+), or miR-331-3p inhibitor to explore its effect on differentiation. Results It was observed that miR-331-3p could inhibit preadipocytes proliferation. Furthermore, miR-331-3p was highly expressed during cellular differentiation and appeared to promote the process. In addition, dual fluorescein analysis showed that dihydrolipoamide S-succinyltransferase (DLST) is a target gene of miR-331-3p, and overexpression of miR-331-3p could regulate the metabolism of fatty acids in the citrate pyruvate cycle by targeting DLST expression. Conclusion In summary, these findings indicated that miR-331-3p exerts contrasting effects on the processes of fat deposition.
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87
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Wang Y, Lin L, Huang Y, Sun J, Wang X, Wang P. MicroRNA-138 Suppresses Adipogenic Differentiation in Human Adipose Tissue-Derived Mesenchymal Stem Cells by Targeting Lipoprotein Lipase. Yonsei Med J 2019; 60:1187-1194. [PMID: 31769250 PMCID: PMC6881710 DOI: 10.3349/ymj.2019.60.12.1187] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/08/2019] [Revised: 09/02/2019] [Accepted: 09/23/2019] [Indexed: 12/30/2022] Open
Abstract
PURPOSE Adipogenic differentiation of adipose tissue-derived mesenchymal stem cells (AMSCs) is critical to many disease-related disorders, such as obesity and diabetes. Studies have demonstrated that miRNA-138 (miR-138) is closely involved in adipogenesis. However, the mechanisms affected by miR-138 remain unclear. This work aimed to investigate interactions between miR-138 and lipoprotein lipase (LPL), a key lipogenic enzyme, in AMSCs. MATERIALS AND METHODS Human AMSCs (hAMSCs) isolated from human abdomen tissue were subjected to adipogenic differentiation medium. Quantitative real-time polymerase chain reaction and Western blot assay were applied to measure the expressions of miR-138, LPL, and the two adipogenic transcription factors cytidine-cytidine-adenosine-adenosine-thymidine enhancer binding protein alpha (C/EBPα) and peroxisome proliferator-activated receptor gamma (PPARγ). The relationship between miR-138 and LPL was predicted utilizing the miRTarBase database and validated by dual luciferase reporter assay. RESULTS Showing increases in C/EBPα and PPARγ expression levels, hAMSCs were induced into adipogenic differentiation. During adipogenesis of hAMSCs, miR-138 expression was significantly downregulated. Overexpression of miR-138 by transfection inhibited hAMSCs adipogenic differentiation in vitro. Mechanically, LPL was a target of miR-138. LPL expression was upregulated during adipogenesis of hAMSCs, and this upregulation was reversed by miR-138 overexpression. Functionally, silencing of LPL by transfection exerted similar inhibition of the expressions of C/EBPα and PPARγ. Meanwhile, LPL ectopic expression was able to partly abolish the suppressive effect of miR-138 overexpression on adipogenic differentiation of hAMSCs. CONCLUSION Upregulation of miR-138 inhibits adipogenic differentiation of hAMSCs by directly downregulating LPL.
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Affiliation(s)
- Yuting Wang
- Department of Burn Plastic Surgery, the Yuhuangding Hospital of Yantai, Yantai, China
| | - Lixin Lin
- Department of Burn Plastic Surgery, the Yuhuangding Hospital of Yantai, Yantai, China.
| | - Yong Huang
- Department of Burn Plastic Surgery, the Yuhuangding Hospital of Yantai, Yantai, China
| | - Junjun Sun
- Department of Burn Plastic Surgery, the Yuhuangding Hospital of Yantai, Yantai, China
| | - Xueming Wang
- Department of Burn Plastic Surgery, the Yuhuangding Hospital of Yantai, Yantai, China
| | - Peng Wang
- Department of Burn Plastic Surgery, the Yuhuangding Hospital of Yantai, Yantai, China
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88
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Abstract
Obesity and associated metabolic complications, including diabetes, cardiovascular and hepatic diseases, and certain types of cancers, create a major socioeconomic burden. Obesity is characterized by excessive expansion of white adipose tissue resulting from increased adipocyte size, and enhanced adipocyte precursor cells proliferation and differentiation into mature adipocytes, a process well-defined as adipogenesis. Efforts to develop therapeutically potent strategies to circumvent obesity are impacted by our limited understanding of molecular mechanisms regulating adipogenesis. In this review, we discuss recently discovered molecular mechanisms restraining adipogenesis. In this perspective, the discoveries of white adipose tissue endogenous adipogenesis-regulatory cells (Aregs) that negatively regulate adipocyte differentiation, platelet-derived growth factor receptor isoform α (PDGFRα) activation and downstream signaling that hinder adipocyte precursors differentiation, and a group of obesity-associated non-coding RNAs (ncRNAs) that regulate adipogenesis open up promising therapeutic avenues to prevent and/or treat obesity.
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Affiliation(s)
- Nida Haider
- Division of Experimental Medicine, Department of Medicine, McGill University and The Research Institute of McGill University Health Centre, Montreal, Quebec, Canada
| | - Louise Larose
- Division of Experimental Medicine, Department of Medicine, McGill University and The Research Institute of McGill University Health Centre, Montreal, Quebec, Canada
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89
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Androgen-Regulated microRNAs (AndroMiRs) as Novel Players in Adipogenesis. Int J Mol Sci 2019; 20:ijms20225767. [PMID: 31744106 PMCID: PMC6888160 DOI: 10.3390/ijms20225767] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2019] [Revised: 11/11/2019] [Accepted: 11/12/2019] [Indexed: 12/14/2022] Open
Abstract
The development, homeostasis, or increase of the adipose tissue is driven by the induction of the adipogenic differentiation (adipogenesis) of undifferentiated mesenchymal stem cells (MSCs). Adipogenesis can be inhibited by androgen stimulation of these MSCs resulting in the transcription initiation or repression of androgen receptor (AR) regulated genes. AR not only regulates the transcription of protein-coding genes but also the transcription of several non-coding microRNAs involved in the posttranscriptional gene regulation (herein designated as AndroMiRs). As microRNAs are largely involved in differentiation processes such as adipogenesis, the involvement of AndroMiRs in the androgen-mediated inhibition of adipogenesis is likely, however, not yet intensively studied. In this review, existing knowledge about adipogenesis-related microRNAs and AndroMiRs is summarized, and putative cross-links are drawn, which are still prone to experimental validation.
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90
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Feng Y, Zhou L, Peng Y, Yang Y, Fan T, Jiang X, Dai J, Ouyang J. The Role of miR‐326 in Adipogenic Differentiation of Human Adipose‐Derived Stem Cells by Targeting C/EBPα
in vitro. Anat Rec (Hoboken) 2019; 303:2054-2060. [DOI: 10.1002/ar.24281] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2019] [Revised: 07/06/2019] [Accepted: 08/16/2019] [Indexed: 12/20/2022]
Affiliation(s)
- Yanting Feng
- Department of Anatomy, Guangdong Provincial Key Laboratory of Medical Biomechanics, School of Basic Medical SciencesSouthern Medical University Guangzhou China
| | - Lanting Zhou
- Medical College, Hubei University of Arts and Science Xiangyang China
| | - Yan Peng
- Department of Anatomy, Guangdong Provincial Key Laboratory of Medical Biomechanics, School of Basic Medical SciencesSouthern Medical University Guangzhou China
| | - Yuchao Yang
- Department of Anatomy, Guangdong Provincial Key Laboratory of Medical Biomechanics, School of Basic Medical SciencesSouthern Medical University Guangzhou China
| | - Tingyu Fan
- Department of Anatomy, Guangdong Provincial Key Laboratory of Medical Biomechanics, School of Basic Medical SciencesSouthern Medical University Guangzhou China
| | - Xin Jiang
- Department of Anatomy, Guangdong Provincial Key Laboratory of Medical Biomechanics, School of Basic Medical SciencesSouthern Medical University Guangzhou China
| | - Jingxing Dai
- Department of Anatomy, Guangdong Provincial Key Laboratory of Medical Biomechanics, School of Basic Medical SciencesSouthern Medical University Guangzhou China
| | - Jun Ouyang
- Department of Anatomy, Guangdong Provincial Key Laboratory of Medical Biomechanics, School of Basic Medical SciencesSouthern Medical University Guangzhou China
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Tryggestad JB, Teague AM, Sparling DP, Jiang S, Chernausek SD. Macrophage-Derived microRNA-155 Increases in Obesity and Influences Adipocyte Metabolism by Targeting Peroxisome Proliferator-Activated Receptor Gamma. Obesity (Silver Spring) 2019; 27:1856-1864. [PMID: 31531958 PMCID: PMC6832842 DOI: 10.1002/oby.22616] [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] [Received: 02/22/2019] [Accepted: 07/11/2019] [Indexed: 12/18/2022]
Abstract
OBJECTIVE This study aimed to investigate cellular sources of microRNAs (miRNA) within adipose tissue and the impact of obesity on miRNA expression, as well as to examine targets of miRNAs. METHODS miRNA expression by quantitative polymerase chain reaction was examined in adipocytes, adipose tissue macrophages (ATM), and peripheral blood mononuclear cells from and individuals with normal weight and with obesity. Differentiated 3T3-L1 adipocytes were cocultured with macrophages, and 3T3-L1 and differentiated human mesenchymal stem cells were transfected with miR-155, with peroxisome proliferator-activated receptor gamma (PPAR-γ) and solute carrier family 2 member 4 (GLUT4) abundance measured via Western blot analysis. RESULTS Abundance of miR-155 and miR-210 was increased in ATM of participants with obesity by 6.7-fold and 2.9-fold (P = 0.002 and P = 0.013, respectively). miR-130b expression was increased 1.8-fold in ATM and 4.3-fold in adipocytes from participants with obesity (P = 0.007 and P = 0.02, respectively). PPARG mRNA expression decreased 32% (P = 0.044) in adipocytes from individuals with obesity. In 3T3-L1 cells exposed to macrophages, PPARG expression decreased 99.4% (P = 0.02). PPAR-γ protein content declined 75% (P = 0.001) in 3T3-L1 cells transfected with miR-155. GLUT4 protein levels were reduced by 55% (P = 0.021) in differentiated human mesenchymal stem cells exposed to miR-155. CONCLUSIONS Adipose tissue miRNAs are influenced in a cell type-specific fashion by obesity, with macrophage miR-155 potentially impacting neighboring adipocytes.
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Affiliation(s)
| | - April M. Teague
- University of Oklahoma Health Sciences Center, Oklahoma City OK, USA
| | - David P. Sparling
- University of Oklahoma Health Sciences Center, Oklahoma City OK, USA
| | - Shaoning Jiang
- University of Oklahoma Health Sciences Center, Oklahoma City OK, USA
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92
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Chen Y, Zhao Y, Jin W, Li Y, Zhang Y, Ma X, Sun G, Han R, Tian Y, Li H, Kang X, Li G. MicroRNAs and their regulatory networks in Chinese Gushi chicken abdominal adipose tissue during postnatal late development. BMC Genomics 2019; 20:778. [PMID: 31653195 PMCID: PMC6815035 DOI: 10.1186/s12864-019-6094-2] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2019] [Accepted: 09/10/2019] [Indexed: 12/13/2022] Open
Abstract
Background Abdominal fat is the major adipose tissue in chickens. The growth status of abdominal fat during postnatal late development ultimately affects meat yield and quality in chickens. MicroRNAs (miRNAs) are endogenous small noncoding RNAs that regulate gene expression at the post-transcriptional level. Studies have shown that miRNAs play an important role in the biological processes involved in adipose tissue development. However, few studies have investigated miRNA expression profiles and their interaction networks associated with the postnatal late development of abdominal adipose tissue in chickens. Results We constructed four small RNA libraries from abdominal adipose tissue obtained from Chinese domestic Gushi chickens at 6, 14, 22, and 30 weeks. A total of 507 known miRNAs and 53 novel miRNAs were identified based on the four small RNA libraries. Fifty-one significant differentially expressed (SDE) miRNAs were identified from six combinations by comparative analysis, and the expression patterns of these SDE miRNAs were divided into six subclusters by cluster analysis. Gene ontology enrichment analysis showed that the SDE miRNAs were primarily involved in the regulation of fat cell differentiation, regulation of lipid metabolism, regulation of fatty acid metabolism, and unsaturated fatty acid metabolism in the lipid metabolism- or deposition-related biological process categories. In addition, we constructed differentially expressed miRNA–mRNA interaction networks related to abdominal adipose development. The results showed that miRNA families, such as mir-30, mir-34, mir-199, mir-8, and mir-146, may have key roles in lipid metabolism, adipocyte proliferation and differentiation, and cell junctions during abdominal adipose tissue development in chickens. Conclusions This study determined the dynamic miRNA transcriptome and characterized the miRNA–mRNA interaction networks in Gushi chicken abdominal adipose tissue for the first time. The results expanded the number of known miRNAs in abdominal adipose tissue and provide novel insights and a valuable resource to elucidate post-transcriptional regulation mechanisms during postnatal late development of abdominal adipose tissue in chicken.
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Affiliation(s)
- Yi Chen
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zheng zhou, Henan Province, 450002, People's Republic of China
| | - Yinli Zhao
- College of Biological Engineering, Henan University of Technology, Zheng zhou, Henan Province, 450001, People's Republic of China
| | - Wenjiao Jin
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zheng zhou, Henan Province, 450002, People's Republic of China
| | - Yuanfang Li
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zheng zhou, Henan Province, 450002, People's Republic of China
| | - Yanhua Zhang
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zheng zhou, Henan Province, 450002, People's Republic of China
| | - Xuejie Ma
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zheng zhou, Henan Province, 450002, People's Republic of China
| | - Guirong Sun
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zheng zhou, Henan Province, 450002, People's Republic of China
| | - Ruili Han
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zheng zhou, Henan Province, 450002, People's Republic of China
| | - Yadong Tian
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zheng zhou, Henan Province, 450002, People's Republic of China
| | - Hong Li
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zheng zhou, Henan Province, 450002, People's Republic of China
| | - Xiangtao Kang
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zheng zhou, Henan Province, 450002, People's Republic of China
| | - Guoxi Li
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zheng zhou, Henan Province, 450002, People's Republic of China.
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Li Q, Hu S, Wang Y, Deng Y, Yang S, Hu J, Li L, Wang J. mRNA and miRNA Transcriptome Profiling of Granulosa and Theca Layers From Geese Ovarian Follicles Reveals the Crucial Pathways and Interaction Networks for Regulation of Follicle Selection. Front Genet 2019; 10:988. [PMID: 31708963 PMCID: PMC6820619 DOI: 10.3389/fgene.2019.00988] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2019] [Accepted: 09/17/2019] [Indexed: 12/24/2022] Open
Abstract
Follicle development is characterized by the recruitment, growth, selection, and dominance of follicles, and follicle selection determines the lifetime reproductive performance. However, in birds, the molecular mechanisms underlying follicle selection still remain elusive. This study analyzed genome-wide changes in the mRNA and miRNA expression profiles in both the granulosa and theca layers of geese ovarian follicles before selection (4–6- and 8–10-mm follicles) and after selection (F5). The sequencing results showed that a higher number of both differentially expressed (DE) mRNAs and DE miRNAs were identified between 8–10-mm and F5 follicles compared with those between the 4–6- and 8–10-mm follicles, especially in the granulosa layer. Moreover, a Short Time-series Expression Miner analysis identified a large number of DE mRNAs and DE miRNAs that are associated with follicle selection. The functional enrichment analysis showed that DE genes in the granulosa layer during follicle selection were mainly enriched in five pathways related to junctional adhesion and two pathways associated with lipid metabolism. Additionally, an interaction network was constructed to visualize interactions among protein-coding genes, which identified 53 junctional adhesion- and 15 lipid regulation-related protein-coding genes. Then, a co-expression network between mRNAs and miRNAs in relation to junctional adhesion was also visualized and mainly included acy-miR-2954, acy-miR-218, acy-miR-2970, acy-miR-100, acy-miR-1329, acy-miR-199, acy-miR-425, acy-miR-181, and acy-miR-147. Furthermore, miRNA–mRNA interaction pairs related to lipid regulation were constructed including acy-miR-107, acy-miR-138, acy-miR-130, acy-miR-128, and acy-miR-101 during follicular selection. In summary, these data highlight the key roles of junctional adhesion and lipid metabolism during follicular selection and contribute to a better understanding of the mechanisms underlying follicle selection in birds.
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Affiliation(s)
- Qin Li
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, China.,Poultry Science Institute, Chongqing Academy of Animal Science, Chongqing, China
| | - Shenqiang Hu
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, China
| | - Yushi Wang
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, China
| | - Yan Deng
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, China
| | - Shuang Yang
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, China
| | - Jiwei Hu
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, China
| | - Liang Li
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, China
| | - Jiwen Wang
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, China
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Chen Z, Chu S, Wang X, Sun Y, Xu T, Mao Y, Loor JJ, Yang Z. MiR-16a Regulates Milk Fat Metabolism by Targeting Large Tumor Suppressor Kinase 1 ( LATS1) in Bovine Mammary Epithelial Cells. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:11167-11178. [PMID: 31542928 DOI: 10.1021/acs.jafc.9b04883] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Milk contains a number of beneficial fatty acids including short and medium chain and unsaturated conjugated and nonconjugated fatty acids. In this study, microRNA sequencing of mammary tissue collected in early-, peak-, mid-, and late-lactation periods was performed to determine the miRNA expression profiles. miR-16a was one of the differentially expressed miRNA and was selected for in-depth functional studies pertaining to fatty acid metabolism. The mimic of miR-16a impaired fat metabolism [triacylglycerol (TAG) and cholesterol] while knock-down of miR-16a promoted fat metabolism in vitro in bovine mammary epithelial cells (BMECs). In addition, the in vitro work with BMECs also revealed that miR-16a had a negative effect on the cellular concentration of cis 9-C18:1, total C18:1, C20:1, and C22:1 and long-chain polyunsaturated fatty acids. Therefore, these data suggesting a negative effect on fatty acid metabolism extend the discovery of the key role of miR-16a in mediating adipocyte differentiation. Through a combination of bioinformatics analysis, target gene 3' UTR luciferase reporter assays, and western blotting, we identified large tumor suppressor kinase 1 (LATS1) as a target of miR-16a. Transfection of siRNA-LATS1 into BMECs led to increases in TAG, cholesterol, and cellular fatty acid concentrations, suggesting a positive role of LATS1 in mammary cell fatty acid metabolism. In summary, data suggest that miR-16a regulates biological processes associated with intracellular TAG, cholesterol, and unsaturated fatty acid synthesis through LATS1. These data provide a theoretical and experimental framework for further clarifying the regulation of lipid metabolism in mammary cells of dairy cows.
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Affiliation(s)
- Zhi Chen
- College of Animal Science and Technology , Yangzhou University , Yangzhou 225009 , PR China
- Joint International Research Laboratory of Agriculture & Agri-Product Safety, Ministry of Education , Yangzhou University , Yangzhou 225009 , China
| | - Shuangfeng Chu
- College of Animal Science and Technology , Yangzhou University , Yangzhou 225009 , PR China
- Joint International Research Laboratory of Agriculture & Agri-Product Safety, Ministry of Education , Yangzhou University , Yangzhou 225009 , China
| | - Xiaolong Wang
- College of Animal Science and Technology , Yangzhou University , Yangzhou 225009 , PR China
- Joint International Research Laboratory of Agriculture & Agri-Product Safety, Ministry of Education , Yangzhou University , Yangzhou 225009 , China
| | - Yujia Sun
- College of Animal Science and Technology , Yangzhou University , Yangzhou 225009 , PR China
- Joint International Research Laboratory of Agriculture & Agri-Product Safety, Ministry of Education , Yangzhou University , Yangzhou 225009 , China
| | - Tianle Xu
- College of Animal Science and Technology , Yangzhou University , Yangzhou 225009 , PR China
- Joint International Research Laboratory of Agriculture & Agri-Product Safety, Ministry of Education , Yangzhou University , Yangzhou 225009 , China
| | - Yongjiang Mao
- College of Animal Science and Technology , Yangzhou University , Yangzhou 225009 , PR China
- Joint International Research Laboratory of Agriculture & Agri-Product Safety, Ministry of Education , Yangzhou University , Yangzhou 225009 , China
| | - Juan J Loor
- Mammalian Nutrition Physiology Genomics, Department of Animal Sciences and Division of Nutritional Sciences , University of Illinois , Urbana , Illinois 61801 , United States
| | - Zhangping Yang
- College of Animal Science and Technology , Yangzhou University , Yangzhou 225009 , PR China
- Joint International Research Laboratory of Agriculture & Agri-Product Safety, Ministry of Education , Yangzhou University , Yangzhou 225009 , China
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Lin Z, He H, Wang M, Liang J. MicroRNA-130a controls bone marrow mesenchymal stem cell differentiation towards the osteoblastic and adipogenic fate. Cell Prolif 2019; 52:e12688. [PMID: 31557368 PMCID: PMC6869834 DOI: 10.1111/cpr.12688] [Citation(s) in RCA: 107] [Impact Index Per Article: 21.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Revised: 06/10/2019] [Accepted: 06/13/2019] [Indexed: 12/13/2022] Open
Abstract
Objectives With age, bone marrow mesenchymal stem cells (BMSC) have reduced ability of differentiating into osteoblasts but have increased ability of differentiating into adipocytes which leads to age‐related bone loss. MicroRNAs (miRNAs) play major roles in regulating BMSC differentiation. This paper explored the role of miRNAs in regulating BMSC differentiation swift fate in age‐related osteoporosis. Material and methods Mice and human BMSC were isolated from bone marrow, whose miR‐130a level was measured. The abilities of BMSC differentiate into osteoblast or fat cell under the transfected with agomiR‐130a or antagomiR‐130a were analysed by the level of ALP, osteocalcin, Runx2, osterix or peroxisome proliferator‐activated receptorγ (PPARγ), Fabp4. Related mechanism was verified via qT‐PCR, Western blotting (WB) and siRNA transfection. Animal phenotype intravenous injection with agomiR‐130a or agomiR‐NC was explored by Micro‐CT, immunochemistry and calcein double‐labelling. Results MiR‐130a was dramatically decreased in BMSC of advanced subjects. Overexpression of miR‐130a increased osteogenic differentiation of BMSC and attenuated adipogenic differentiation in BMSC, conversely, Inhibition of miR‐130a reduced osteogenic differentiation and facilitated lipid droplet formation. Consistently, overexpression of miR‐130a in elderly mice dropped off the bone loss. Furthermore, the protein levels of Smad regulatory factors 2 (Smurf2) and PPARγ were regulated by miR‐130a with an negative effect through directly combining the 3'UTR of Smurf2 and PPARγ. Conclusions The results indicated that miR‐130a promotes osteoblastic differentiation of BMSC by negatively regulating Smurf2 expression and suppresses adipogenic differentiation of BMSC by targeting the PPARγ, and supply a new target for clinical therapy of age‐related bone loss.
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Affiliation(s)
- Zhangyuan Lin
- Department of Orthopedic, Xiangya Hospital of Central South University, Changsha, China
| | - Hongbo He
- Department of Orthopedic, Xiangya Hospital of Central South University, Changsha, China
| | - Min Wang
- Department of Endocrinology, Xiangya Hospital of Central South University, Changsha, China
| | - Jieyu Liang
- Department of Orthopedic, Xiangya Hospital of Central South University, Changsha, China
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Landrier JF, Derghal A, Mounien L. MicroRNAs in Obesity and Related Metabolic Disorders. Cells 2019; 8:cells8080859. [PMID: 31404962 PMCID: PMC6721826 DOI: 10.3390/cells8080859] [Citation(s) in RCA: 132] [Impact Index Per Article: 26.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2019] [Revised: 08/01/2019] [Accepted: 08/07/2019] [Indexed: 12/14/2022] Open
Abstract
Metabolic disorders are characterized by the inability to properly use and/or store energy. The burdens of metabolic disease, such as obesity or diabetes, are believed to arise through a complex interplay between genetics and epigenetics predisposition, environment and nutrition. Therefore, understanding the molecular mechanisms for the onset of metabolic disease will provide new insights for prevention and treatment. There is growing concern about the dysregulation of micro-RNAs (miRNAs) in metabolic diseases. MiRNAs are short non-coding RNA molecules that post-transcriptionally repress the expression of genes by binding to untranslated regions and coding sequences of the target mRNAs. This review aims to provide recent data about the potential involvement of miRNAs in metabolic diseases, particularly obesity and type 2 diabetes.
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Affiliation(s)
| | - Adel Derghal
- Aix Marseille Univ, INSERM, INRA, C2VN, 13005 Marseille, France
| | - Lourdes Mounien
- Aix Marseille Univ, INSERM, INRA, C2VN, 13005 Marseille, France.
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97
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Liu J, Tang T, Wang GD, Liu B. LncRNA-H19 promotes hepatic lipogenesis by directly regulating miR-130a/PPARγ axis in non-alcoholic fatty liver disease. Biosci Rep 2019; 39:BSR20181722. [PMID: 31064820 PMCID: PMC6629946 DOI: 10.1042/bsr20181722] [Citation(s) in RCA: 56] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2018] [Revised: 04/16/2019] [Accepted: 04/29/2019] [Indexed: 12/16/2022] Open
Abstract
Background: As one of the most common liver disorders worldwide, non-alcoholic fatty liver disease (NAFLD) begins with the abnormal accumulation of triglyceride (TG) in the liver. Long non-coding RNA-H19 was reported to modulate hepatic metabolic homeostasis in NAFLD. However, its molecular mechanism of NAFLD was not fully clear.Methods:In vitro and in vivo models of NAFLD were established by free fatty acid (FFA) treatment of hepatocytes and high-fat feeding mice, respectively. Hematoxylin and Eosin (H&E) and Oil-Red O staining detected liver tissue morphology and lipid accumulation. Immunohistochemistry (IHC) staining examined peroxisome proliferator-activated receptor γ (PPARγ) level in liver tissues. ELISA assay assessed TG secretion. Luciferase assay and RNA pull down were used to validate regulatory mechanism among H19, miR-130a and PPARγ. The gene expression in hepatocytes and liver tissues was detected by quantitative real-time PCR (qRT-PCR) and Western blotting.Results: H19 and PPARγ were up-regulated, while miR-130a was down-regulated in NAFLD mouse and cellular model. H&E and Oil-Red O staining indicated an increased lipid accumulation. Knockdown of H19 inhibited steatosis and TG secretion in FFA-induced hepatocytes. H19 could bind to miR-130a, and miR-130a could directly inhibit PPARγ expression. Meanwhile, miR-130a inhibited lipid accumulation by down-regulating NAFLD-related genes PPARγ, SREBP1, SCD1, ACC1 and FASN. Overexpression of miR-130a and PPARγ antagonist GW9662 inhibited lipogenesis and TG secretion, and PPARγ agonist GW1929 reversed this change induced by miR-130a up-regulation.Conclusion: Knockdown of H19 alleviated hepatic lipogenesis via directly regulating miR-130a/PPARγ axis, which is a novel mechanistic role of H19 in the regulation of NAFLD.
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Affiliation(s)
- Jun Liu
- Department of Geriatrics, Xiangya Hospital, Central South University, Changsha 410008, P.R. China
| | - Tao Tang
- Department of Geriatrics, Xiangya Hospital, Central South University, Changsha 410008, P.R. China
| | - Guo-Dong Wang
- Anhui Provincial Engineering Research Center for Polysaccharide Drugs, School of Pharmacy, Wannan Medical College, Wuhu 241002, P.R. China
| | - Bo Liu
- Department of Geriatrics, Xiangya Hospital, Central South University, Changsha 410008, P.R. China
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98
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Zhang Z, Wang W, Liu JB, Wang Y, Hao JD, Huang YJ, Gao Y, Jiang H, Yuan B, Zhang JB. ssc-miR-204 regulates porcine preadipocyte differentiation and apoptosis by targeting TGFBR1 and TGFBR2. J Cell Biochem 2019; 121:609-620. [PMID: 31353638 DOI: 10.1002/jcb.29306] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2019] [Accepted: 07/15/2019] [Indexed: 12/21/2022]
Abstract
MicroRNAs (miRNAs) take part in a variety of biological processes by regulating target genes. Transforming growth factor β receptor 1 (TGFBR1) and TGFBR2 are crucial members of the TGF-β family and are serine/threonine kinase receptors. The aim of this study was to explore the functions of ssc-miR-204 in porcine preadipocyte differentiation and apoptosis with regard to the TGFβ/Smad pathway. We identified miRNAs predicted to target TGFBR1 and TGFBR2 using a database and selected ssc-miR-204 as a candidate miRNA. ssc-miR-204 overexpression dramatically reduced the levels of TGFBR1 and TGFBR2. However, after transfection with ssc-miR-204 inhibitor, TGFBR1 and TGFBR2 levels were dramatically increased. ssc-miR-204 overexpression dramatically promoted porcine preadipocyte differentiation and apoptosis. After transfection with ssc-miR-204 inhibitor, porcine preadipocyte differentiation and apoptosis were dramatically inhibited. After transfection with ssc-miR-204 mimics, Smad2, Smad3, Smad4, p-Smad2, and p-Smad3 protein levels significantly decreased, and adipogenesis was regulated by inhibiting the TGF-β/Smad3 signaling pathway. Taken together, these results verified that ssc-miR-204 regulates porcine preadipocyte differentiation and apoptosis by targeting TGFBR1 and TGFBR2.
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Affiliation(s)
- Zhe Zhang
- College of Animal Sciences, Jilin University, Changchun, Jilin, China
| | - Wei Wang
- College of Animal Sciences, Jilin University, Changchun, Jilin, China
| | - Jian-Bo Liu
- College of Animal Sciences, Jilin University, Changchun, Jilin, China
| | - Ying Wang
- College of Animal Sciences, Jilin University, Changchun, Jilin, China
| | - Jin-Dong Hao
- College of Animal Sciences, Jilin University, Changchun, Jilin, China
| | - Yi-Jie Huang
- College of Animal Sciences, Jilin University, Changchun, Jilin, China
| | - Yan Gao
- College of Animal Sciences, Jilin University, Changchun, Jilin, China
| | - Hao Jiang
- College of Animal Sciences, Jilin University, Changchun, Jilin, China
| | - Bao Yuan
- College of Animal Sciences, Jilin University, Changchun, Jilin, China
| | - Jia-Bao Zhang
- College of Animal Sciences, Jilin University, Changchun, Jilin, China
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Seiri P, Abi A, Soukhtanloo M. PPAR-γ: Its ligand and its regulation by microRNAs. J Cell Biochem 2019; 120:10893-10908. [PMID: 30770587 DOI: 10.1002/jcb.28419] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2018] [Accepted: 12/04/2018] [Indexed: 01/24/2023]
Abstract
Peroxisome proliferator-activated receptors (PPARs) belong to the nuclear receptor superfamily. PPARs are categorized into three subtypes, PPARα, β/δ, and γ, encoded by different genes, expressed in diverse tissues and participate in various biological functions and can be activated by their metabolic derivatives in the body or dietary fatty acids. The PPAR-γ also takes parts in the regulation of energy balance, lipoprotein metabolism, insulin sensitivity, oxidative stress, and inflammatory signaling. It has been implicated in the pathology of numerous diseases including obesity, diabetes, atherosclerosis, and cancers. Among various cellular and molecular targets that are able to regulate PPAR-γ and its underlying pathways, microRNAs (miRNAs) appeared as important regulators. Given that the deregulation of these molecules via targeting PPAR-γ could affect initiation and progression of various diseases, identification of miRNAs that affects PPAR-γ could contribute to the better understanding of roles of PPAR-γ in various biological and pathological conditions. Here, we have summarized the function and various ligands of PPAR-γ and have highlighted various miRNAs involved in the regulation of PPAR-γ.
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Affiliation(s)
- Parvaneh Seiri
- Department of Biochemistry, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Abbas Abi
- Department of Biotechnology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mohammad Soukhtanloo
- Department of Biochemistry, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
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Broekema M, Savage D, Monajemi H, Kalkhoven E. Gene-gene and gene-environment interactions in lipodystrophy: Lessons learned from natural PPARγ mutants. Biochim Biophys Acta Mol Cell Biol Lipids 2019; 1864:715-732. [DOI: 10.1016/j.bbalip.2019.02.002] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2018] [Revised: 01/13/2019] [Accepted: 02/02/2019] [Indexed: 12/13/2022]
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