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Gu H, Pan Y, Xiao H, Zhao L, Tang Y, Ge W. Knockdown of LAP2α inhibits adipogenesis of human adipose-derived stem cells and ameliorates high-fat diet-induced obesity. FASEB J 2024; 38:e23664. [PMID: 38775797 DOI: 10.1096/fj.202302435rr] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Revised: 04/17/2024] [Accepted: 04/29/2024] [Indexed: 05/30/2024]
Abstract
Adipogenesis, a pivotal cellular process involving the differentiation of mesenchymal stem cells (MSCs) to mature adipocytes, plays a significant role in various physiological functions. Dysregulation of adipogenesis is implicated in conditions such as obesity. However, the complete molecular understanding of adipogenesis remains elusive. This study aimed to uncover the novel role of lamina-associated polypeptide 2 alpha (LAP2α) in human adipose-derived stem cells (hASCs) adipogenesis and its impact on high-fat diet (HFD)-induced obesity and associated metabolic disturbances. LAP2α expression was assessed during the adipogenic differentiation of hASCs using RT-qPCR and western blotting. The functional role of LAP2α in adipogenesis was explored both in vitro and in vivo through loss- and gain-of-function studies. Moreover, mice with HFD-induced obesity received lentivirus injection to assess the effect of LAP2α knockdown on fat accumulation. Molecular mechanisms underlying LAP2α in adipogenic differentiation were investigated using RT-qPCR, Western blotting, immunofluorescence staining, and Oil Red O staining. LAP2α expression was upregulated during hASCs adipogenic differentiation. LAP2α knockdown hindered adipogenesis, while LAP2α overexpression promoted adipogenic differentiation. Notably, LAP2α deficiency resisted HFD-induced obesity, improved glucose intolerance, mitigated insulin resistance, and prevented fatty liver development. Mechanistically, LAP2α knockdown attenuated signal transducer and activator of transcription 3 (STAT3) activation by reducing the protein level of phosphorylated STAT3. A STAT3 activator (Colivelin) counteracted the negative impact of LAP2α deficiency on hASCs adipogenic differentiation. Taken together, our current study established LAP2α as a crucial regulator of hASCs adipogenic differentiation, unveiling a new therapeutic target for obesity prevention.
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Affiliation(s)
- Hang Gu
- Department of General Dentistry II, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing, P.R. China
| | - Yuan Pan
- Department of General Dentistry II, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing, P.R. China
| | - Han Xiao
- Department of General Dentistry II, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing, P.R. China
| | - Lijun Zhao
- Department of General Dentistry II, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing, P.R. China
| | - Yiman Tang
- Fourth Clinical Division, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing, P.R. China
| | - Wenshu Ge
- Department of General Dentistry II, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing, P.R. China
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Gao Y, Wang S, Ma Y, Lei Z, Ma Y. Circular RNA regulation of fat deposition and muscle development in cattle. Vet Med Sci 2022; 8:2104-2113. [PMID: 35689831 PMCID: PMC9514475 DOI: 10.1002/vms3.857] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Circular RNAs (circRNAs) are important transcriptional regulatory RNA molecule that can regulate the transcription of downstream genes by competitive binding of miRNAs or coding proteins or by blocking mRNAs translation. Numerous studies have shown that circRNAs are extensively involved in cell proliferation, differentiation and apoptosis, gene transcription and signal transduction. Fat deposition and muscle development have important effects on beef traits. CircRNAs are involved in regulating bovine fat and muscle cells and are differentially expressed in the tissues composed of these cells, suggesting that circRNAs play an important role in regulating bovine fat formation and muscle development. This review describes differential expression of circRNAs in bovine fat and muscle tissues, research progress in understanding how circRNAs regulate the proliferation and differentiation of bovine fat and muscle cells through competing endogenous RNAs networks, and provide a reference for the subsequent research on the molecular mechanism of circRNAs in regulating fat deposition and muscle development in cattle.
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Affiliation(s)
- Yuhong Gao
- Key Laboratory of Ruminant Molecular and Cellular Breeding, Ningxia Hui Autonomous Region, School of Agriculture Ningxia University Yinchuan China
| | - Shuzhe Wang
- Key Laboratory of Ruminant Molecular and Cellular Breeding, Ningxia Hui Autonomous Region, School of Agriculture Ningxia University Yinchuan China
| | - Yanfen Ma
- Key Laboratory of Ruminant Molecular and Cellular Breeding, Ningxia Hui Autonomous Region, School of Agriculture Ningxia University Yinchuan China
| | - Zhaoxiong Lei
- Key Laboratory of Ruminant Molecular and Cellular Breeding, Ningxia Hui Autonomous Region, School of Agriculture Ningxia University Yinchuan China
| | - Yun Ma
- Key Laboratory of Ruminant Molecular and Cellular Breeding, Ningxia Hui Autonomous Region, School of Agriculture Ningxia University Yinchuan China
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3
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Transcriptome reveals key microRNAs involved in fat deposition between different tail sheep breeds. PLoS One 2022; 17:e0264804. [PMID: 35231067 PMCID: PMC8887763 DOI: 10.1371/journal.pone.0264804] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2021] [Accepted: 02/16/2022] [Indexed: 12/11/2022] Open
Abstract
MicroRNA (miRNA) is a kind of noncoding RNA whose function involved in various biological processes in neuronal maturation and adipocyte cells, such as differentiation, proliferation, development, apoptosis, and metabolism. Herein, miRNA-Seq was used to identify miRNAs in the tail fat tissue of Hu sheep (short-fat-tailed) and Tibetan sheep (short-thin-tailed). In this study, 155 differentially expression miRNAs (DE miRNAs) were identified, including 78 up-regulated and 77 down-regulated. Among these DE miRNAs, 17 miRNAs were reported and related with lipid metabolism. MiRanda and RNAhybrid software were used to predict the target genes of DE miRNAs, obtaining the number of targeting relationships is 38553. Target genes were enriched by Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG). 742 terms and 302 single pathways are enriched, including lipid metabolic process, response to lipid, cellular lipid catabolic process, lipid catabolic process, cellular lipid metabolic process, inositol lipid-mediated signaling, calcium channel activity, PI3K-Akt signaling pathway, MAPK signaling pathway, ECM-receptor interaction, AMPK signaling pathway, Wnt signaling pathway and TGF-beta signaling pathway. Notably, miR-379-5p was associated with tail fat deposition of sheep. Dual-Luciferase reporter assays showed miR-379-5p and HOXC9 had targeted relationship. The result of RT-qPCR showed that the expression trend of miR-379-5p and HOXC9 was opposite. miR-379-5p was down-regulated and highly expressed in tail adipose tissue of Tibetan sheep. HOXC9 was highly expressed in adipose tissue of Hu sheep. These results could provide a meaningful theoretical basis for studying the molecular mechanisms of sheep tail adipogenesis.
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Hu J, Li W, Qiao X, Li W, Xie K, Wang Y, Huang B, Zhao Q, Liu L, Fan X. Characterization of microRNA Profiles in Pasteurella multocida-Infected Rabbits and Identification of miR-29-5p as a Regulator of Antibacterial Immune Response. Front Vet Sci 2021; 8:746638. [PMID: 34869721 PMCID: PMC8635715 DOI: 10.3389/fvets.2021.746638] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2021] [Accepted: 10/26/2021] [Indexed: 11/13/2022] Open
Abstract
Pasteurella multocida is the pathogenic agent for a variety of severe diseases in livestock, including rabbits. MicroRNAs (miRNAs) participate in the immune response to the pathogen. Distinct miRNA expression patterns were explored in rabbit lung by small-RNA deep sequencing to assess dysregulated miRNAs during P. multocida infection. Totally, 571 miRNAs were screened, of which, 62 were novel, and 32 exhibited differential expression (DE). Of the 32 known DE-miRNAs, 13 and 15 occurred at 1 day and 3 days post-infection (dpi); and ocu-miR-107-3p and ocu-miR-29b-5p were shared between the two time points. Moreover, 7,345 non-redundant target genes were predicted for the 32 DE-miRNAs. Putative target genes were enriched in diverse GO and KEGG pathways and might be crucial for disease resistance. Interestingly, upregulation of ocu-miR-29-5p suppresses P. multocida propagation and downregulates expression of epithelial membrane protein-2 (EMP2) and T-box 4 (TBX4) genes by binding to their 3′ untranslated region in RK13 cells. Thus, ocu-miR-29-5p may indirectly inhibit P. multocida invasion by modulating genes related to the host immune response, such as EMP2 and TBX4.
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Affiliation(s)
- Jiaqing Hu
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Taian, China
| | - Wenqiang Li
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Taian, China
| | - Xibo Qiao
- Shandong New Hexin Technology Co. Ltd., Taian, China
| | - Wenjie Li
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Taian, China
| | - Kerui Xie
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Taian, China
| | - Yanyan Wang
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Taian, China
| | - Bing Huang
- Shandong Provincial Key Laboratory of Poultry Disease Diagnose and Immune, Institute of Poultry, Shandong Academy of Agricultural Sciences, Jinan, China
| | - Qiaoya Zhao
- Shandong Provincial Key Laboratory of Poultry Disease Diagnose and Immune, Institute of Poultry, Shandong Academy of Agricultural Sciences, Jinan, China
| | - Lei Liu
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Taian, China
| | - Xinzhong Fan
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Taian, China
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miR-F4-C12 Functions on the Regulation of Adipose Accumulation by Targeting PIK3R1 in Castrated Male Pigs. Animals (Basel) 2021; 11:ani11113053. [PMID: 34827785 PMCID: PMC8614499 DOI: 10.3390/ani11113053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Revised: 10/09/2021] [Accepted: 10/12/2021] [Indexed: 11/17/2022] Open
Abstract
Simple Summary MicroRNAs play crucial roles in regulating adipogenesis and fat storage; their role in regulating castrated male pig adipose growth is worth elucidating. Four nine-fold differentially expressed miRNAs were selected to investigate their functions on the regulation of adipose development based on our previous study. In 3T3-L1 cells and backfat tissues of castrated and intact male pigs, miR-F4-C12 was identified as involved in the adipose development using qRT-PCR and oil O staining. PIK3R1 was proposed by the TargetScan, miRDB and starBase as a target of miR-F4-C12 and verified through a dual-luciferase reporter assay and Western blot. These results revealed that miR-F4-C12 may regulate adipose accumulation in castrated male pigs by targeting PIK3R1. Our data provide a valuable foundation to understand the molecular mechanisms involved in adipose tissue metabolism to castration-induced sex hormone deficiency. Abstract MicroRNAs (miRNAs) constitute small regulatory molecules for a wide array of biological activities (18~24 nucleotides in length), including adipogenesis and adipose deposition. Their effect is, however, incompletely defined in inducing fat accumulation in castrated male pigs. Based on our study, four nine-times miRNAs were selected to examine their functions in adipose formation activities. In 3T3-L1 cells and backfat tissues of castrated and intact male pigs, miR-F4-C12 was identified as a factor in adipose development utilizing quantitative real-time PCR (qRT-PCR). Further, miR-F4-C12 was identified to promote fat development, suggesting that miR-F4-C12 was involved in adipogenesis. Moreover, phosphoinositide-3-kinase regulatory subunit 1 (PIK3R1) was proposed by the TargetScan, miRDB and starBase as a target of miR-F4-C12 and verified through a two-luciferase reporter assay. The over-expression of miR-F4-C12 dramatically decreases the PIK3R1 protein level in 3T3-L1 cells. The mRNA and protein levels of PIK3R1 in castrated pigs are reduced relative to intact pigs, providing further evidence that PIK3R1 is involved in regulating adipose accumulation. These results suggest that miR-F4-C12 involves adipose development and may regulate subcutaneous adipose tissue accumulation by targeting PIK3R1 in castrated male pigs.
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Hanousková B, Vávrová G, Ambrož M, Boušová I, Karlsen TA, Skálová L, Matoušková P. MicroRNAs mediated regulation of glutathione peroxidase 7 expression and its changes during adipogenesis. BIOCHIMICA ET BIOPHYSICA ACTA-GENE REGULATORY MECHANISMS 2021; 1864:194734. [PMID: 34339889 DOI: 10.1016/j.bbagrm.2021.194734] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Revised: 07/12/2021] [Accepted: 07/22/2021] [Indexed: 12/19/2022]
Abstract
Glutathione peroxidase 7 (GPx7) acts as an intracellular stress sensor/transmitter and plays an important role in adipocyte differentiation and the prevention of obesity related pathologies. For this reason, finding the regulatory mechanisms that control GPx7 expression is of great importance. As microRNAs (miRNAs) could participate in the regulation of GPx7 expression, we studied the inhibition of GPx7 expression by four selected miRNAs with relation to obesity and adipogenesis. The effect of the transfection of selected miRNAs mimics on GPx7 expression was tested in three cell models (HEK293, SW480, AT-MSC). The interaction of selected miRNAs with the 3'UTR of GPx7 was followed up on using a luciferase gene reporter assay. In addition, the levels of GPx7 and selected miRNAs in adipose tissue mesenchymal stem cells (AT-MSC) and mature adipocytes from four human donors were compared, with the changes in these levels during adipogenesis analyzed. Our results show for the first time that miR-137 and miR-29b bind to the 3'UTR region of GPx7 and inhibit the expression of this enzyme at the mRNA and protein level in all the human cells tested. However, no negative correlation between miR-137 nor miR-29b level and GPx7 was observed during adipogenesis. Despite the confirmed inhibition of GPx7 expression by miR-137 and miR-29b, the action of these two molecules in adipogenesis and mature adipocytes must be accompanied by other regulators.
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Affiliation(s)
- Barbora Hanousková
- Faculty of Pharmacy in Hradec Králové, Department of Biochemical Sciences, Charles University, Hradec Králové, Czech Republic; Norwegian Center for Stem Cell Research, Department of Immunology and Transfusion Medicine, Oslo University Hospital Rikshospitalet, Oslo, Norway
| | - Gabriela Vávrová
- Faculty of Pharmacy in Hradec Králové, Department of Biochemical Sciences, Charles University, Hradec Králové, Czech Republic
| | - Martin Ambrož
- Faculty of Pharmacy in Hradec Králové, Department of Biochemical Sciences, Charles University, Hradec Králové, Czech Republic
| | - Iva Boušová
- Faculty of Pharmacy in Hradec Králové, Department of Biochemical Sciences, Charles University, Hradec Králové, Czech Republic
| | - Tommy A Karlsen
- Norwegian Center for Stem Cell Research, Department of Immunology and Transfusion Medicine, Oslo University Hospital Rikshospitalet, Oslo, Norway
| | - Lenka Skálová
- Faculty of Pharmacy in Hradec Králové, Department of Biochemical Sciences, Charles University, Hradec Králové, Czech Republic
| | - Petra Matoušková
- Faculty of Pharmacy in Hradec Králové, Department of Biochemical Sciences, Charles University, Hradec Králové, Czech Republic.
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7
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O'Connor S, Murphy EA, Szwed SK, Kanke M, Marchildon F, Sethupathy P, Darnell RB, Cohen P. AGO HITS-CLIP reveals distinct miRNA regulation of white and brown adipose tissue identity. Genes Dev 2021; 35:771-781. [PMID: 33832988 PMCID: PMC8091975 DOI: 10.1101/gad.345447.120] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2020] [Accepted: 03/01/2021] [Indexed: 12/13/2022]
Abstract
MicroRNAs (miRNAs) are short, noncoding RNAs that associate with Argonaute (AGO) to influence mRNA stability and translation, thereby regulating cellular determination and phenotype. While several individual miRNAs have been shown to control adipocyte function, including energy storage in white fat and energy dissipation in brown fat, a comprehensive analysis of miRNA activity in these tissues has not been performed. We used high-throughput sequencing of RNA isolated by cross-linking immunoprecipitation (HITS-CLIP) to comprehensively characterize the network of high-confidence, in vivo mRNA:miRNA interactions across white and brown fat, revealing >20,000 unique AGO binding sites. When coupled with miRNA and mRNA sequencing, we found an inverse correlation between depot-enriched miRNAs and their targets. To illustrate the functionality of our HITS-CLIP data set in identifying specific miRNA:mRNA interactions, we show that miR-29 is a novel regulator of leptin, an adipocyte-derived hormone that coordinates food intake and energy homeostasis. Two independent miR-29 binding sites in the leptin 3' UTR were validated using luciferase assays, and miR-29 gain and loss of function modulated leptin mRNA and protein secretion in primary adipocytes. This work represents the only experimentally generated miRNA targetome in adipose tissue and identifies multiple regulatory pathways that may specify the unique identities of white and brown fat.
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Affiliation(s)
- Sean O'Connor
- Laboratory of Molecular Metabolism, The Rockefeller University, New York, New York 10065, USA
| | - Elisabeth A Murphy
- Laboratory of Molecular Neuro-Oncology, The Rockefeller University, New York, New York 10065, USA
| | - Sarah K Szwed
- Laboratory of Molecular Metabolism, The Rockefeller University, New York, New York 10065, USA.,Weill-Cornell/Rockefeller/Sloan Kettering Tri-Institutional MD-PhD Program, New York, New York 10065, USA
| | - Matt Kanke
- Department of Biomedical Sciences, Cornell University, Ithaca, New York 14853, USA
| | - François Marchildon
- Laboratory of Molecular Metabolism, The Rockefeller University, New York, New York 10065, USA
| | - Praveen Sethupathy
- Department of Biomedical Sciences, Cornell University, Ithaca, New York 14853, USA
| | - Robert B Darnell
- Laboratory of Molecular Neuro-Oncology, The Rockefeller University, New York, New York 10065, USA
| | - Paul Cohen
- Laboratory of Molecular Metabolism, The Rockefeller University, New York, New York 10065, USA
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Lei Z, Wu H, Xiong Y, Wei D, Wang X, Luoreng Z, Cai X, Ma Y. ncRNAs regulate bovine adipose tissue deposition. Mol Cell Biochem 2021; 476:2837-2845. [PMID: 33730298 DOI: 10.1007/s11010-021-04132-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Accepted: 03/06/2021] [Indexed: 12/13/2022]
Abstract
Lipid metabolism, which encompasses synthesis and degradation of lipids, is critical for a wide range of cellular functions, including structural and morphological properties of organelles, energy storage, signalling, and the stability and function of membrane proteins. Adipose tissue is a dynamic tissue type that performs a lot of significant physiological functions, including secretion, and is involved in maintaining homeostasis and in regulatory roles of other tissues based on paracrine or endocrine. More recently, several classes of non-coding RNAs (ncRNAs), such as long non-coding RNA (lncRNA), microRNA (miRNA) and circular RNA (circRNA), have been discovered in adipocytes, and they act as critical regulators of gene expression in adipogenesis and regulate adipogenesis through multiple pathways. In the present paper, we discussed several classes of non-coding RNAs and summarized the latest research on the regulatory role of ncRNAs in bovine adipogenesis. We gave examples for known modes of action to look forward to providing reference information future scientific research in cattle breeding.
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Affiliation(s)
- Zhaoxiong Lei
- School of Agriculture, Ningxia University, YinChuan, China.,Key Laboratory of Ruminant Molecular and Cellular Breeding, Ningxia University, Ningxia Hui Autonomous Region, YinChuan, China
| | - Huiguang Wu
- College of Veterinary Medicine, Yangzhou University, Yangzhou, China
| | - Yan Xiong
- Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Utilization, Ministry of Education, Southwest Minzu University, Chengdu, China
| | - Dawei Wei
- School of Agriculture, Ningxia University, YinChuan, China.,Key Laboratory of Ruminant Molecular and Cellular Breeding, Ningxia University, Ningxia Hui Autonomous Region, YinChuan, China
| | - Xingping Wang
- School of Agriculture, Ningxia University, YinChuan, China.,Key Laboratory of Ruminant Molecular and Cellular Breeding, Ningxia University, Ningxia Hui Autonomous Region, YinChuan, China
| | - Zhuoma Luoreng
- School of Agriculture, Ningxia University, YinChuan, China.,Key Laboratory of Ruminant Molecular and Cellular Breeding, Ningxia University, Ningxia Hui Autonomous Region, YinChuan, China
| | - Xiaoyan Cai
- School of Agriculture, Ningxia University, YinChuan, China.,Key Laboratory of Ruminant Molecular and Cellular Breeding, Ningxia University, Ningxia Hui Autonomous Region, YinChuan, China
| | - Yun Ma
- School of Agriculture, Ningxia University, YinChuan, China. .,Key Laboratory of Ruminant Molecular and Cellular Breeding, Ningxia University, Ningxia Hui Autonomous Region, YinChuan, China. .,College of Life Science, Xinyang Normal University, Xinyang, China.
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9
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Shi Y, Li F, Wang S, Wang C, Xie Y, Zhou J, Li X, Wang B. miR-196b-5p controls adipocyte differentiation and lipogenesis through regulating mTORC1 and TGF-β signaling. FASEB J 2020; 34:9207-9222. [PMID: 32469097 DOI: 10.1096/fj.201901562rr] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2019] [Revised: 04/21/2020] [Accepted: 04/21/2020] [Indexed: 12/28/2022]
Abstract
MicroRNAs have been reported to play a role in adipogenesis and obesity. This study was performed to investigate the role of miR-196b-5p in adipogenesis and the mechanism involved. The data revealed that miR-196b-5p expression increased in primary or established marrow stromal progenitor cells after adipogenic treatment. Supplementing miR-196b-5p in the progenitor cells stimulated adipogenic differentiation and lipogenesis, along with the induction of adipogenic and lipogenic factors. Conversely, inhibition of endogenous miR-196b-5p blocked adipogenesis and lipogenesis. Tuberous sclerosis 1 (Tsc1) and transforming growth factor-β receptor 1 (TGFBR1) were demonstrated to be the direct target genes of miR-196b-5p. Supplementing miR-196b-5p activity in progenitor cells reduced the protein level of TSC1 and activated mammalian target of rapamycin complex 1 (mTORC1) signaling. We further demonstrated that the perturbation of TSC1 in progenitor cells altered the trend of adipogenic differentiation and lipogenesis. Overexpression of Tsc1 or inactivation of mTORC1 signaling attenuated the stimulation of adipogenic differentiation and lipogenesis by miR-196b-5p. Overexpression of Tgfbr1 also partially blocked the adipogenic effect of miR-196b-5p. Further investigations demonstrated that zinc finger E-box-binding homeobox 1 (ZEB1) transcriptionally upregulated miR-196b-5p expression. The current study suggests that miR-196b-5p promotes adipogenic differentiation and lipogenesis in progenitor cells through targeting TSC1 and TGFBR1 and therefore regulating mTORC1 and TGF-β signaling.
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Affiliation(s)
- Yaru Shi
- NHC Key Lab of Hormones and Development, Tianjin Key Lab of Metabolic Diseases, Chu Hsien-I Memorial Hospital & Institute of Endocrinology, Tianjin Medical University, Tianjin, China
| | - Fang Li
- College of Basic Medical Sciences, Tianjin Medical University, Tianjin, China
| | - Shan Wang
- College of Basic Medical Sciences, Tianjin Medical University, Tianjin, China
| | - Changlan Wang
- Division of Endocrinology, Tianjin Medical University General Hospital, Tianjin, China
| | - Yan Xie
- NHC Key Lab of Hormones and Development, Tianjin Key Lab of Metabolic Diseases, Chu Hsien-I Memorial Hospital & Institute of Endocrinology, Tianjin Medical University, Tianjin, China
| | - Jie Zhou
- NHC Key Lab of Hormones and Development, Tianjin Key Lab of Metabolic Diseases, Chu Hsien-I Memorial Hospital & Institute of Endocrinology, Tianjin Medical University, Tianjin, China
| | - Xiaoxia Li
- College of Basic Medical Sciences, Tianjin Medical University, Tianjin, China
| | - Baoli Wang
- NHC Key Lab of Hormones and Development, Tianjin Key Lab of Metabolic Diseases, Chu Hsien-I Memorial Hospital & Institute of Endocrinology, Tianjin Medical University, Tianjin, China
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Zhong YC, Wang SC, Han YH, Wen Y. Recent Advance in Source, Property, Differentiation, and Applications of Infrapatellar Fat Pad Adipose-Derived Stem Cells. Stem Cells Int 2020; 2020:2560174. [PMID: 32215015 PMCID: PMC7081037 DOI: 10.1155/2020/2560174] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Revised: 02/12/2020] [Accepted: 02/20/2020] [Indexed: 12/18/2022] Open
Abstract
Infrapatellar fat pad (IPFP) can be easily obtained during knee surgery, which avoids the damage to patients for obtaining IPFP. Infrapatellar fat pad adipose-derived stem cells (IPFP-ASCs) are also called infrapatellar fat pad mesenchymal stem cells (IPFP-MSCs) because the morphology of IPFP-ASCs is similar to that of bone marrow mesenchymal stem cells (BM-MSCs). IPFP-ASCs are attracting more and more attention due to their characteristics suitable to regenerative medicine such as strong proliferation and differentiation, anti-inflammation, antiaging, secreting cytokines, multipotential capacity, and 3D culture. IPFP-ASCs can repair articular cartilage and relieve the pain caused by osteoarthritis, so most of IPFP-related review articles focus on osteoarthritis. This article reviews the anatomy and function of IPFP, as well as the discovery, amplification, multipotential capacity, and application of IPFP-ASCs in order to explain why IPFP-ASC is a superior stem cell source in regenerative medicine.
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Affiliation(s)
- Yu-chen Zhong
- Department of Histology and Embryology, College of Basic Medical Sciences, China Medical University, Shenyang 110122, China
- Class 4, Phase 102, China Medical University, Shenyang 110122, China
| | - Shi-chun Wang
- Department of Histology and Embryology, College of Basic Medical Sciences, China Medical University, Shenyang 110122, China
- Class 4, Phase 102, China Medical University, Shenyang 110122, China
| | - Yin-he Han
- Department of Histology and Embryology, College of Basic Medical Sciences, China Medical University, Shenyang 110122, China
| | - Yu Wen
- Department of Histology and Embryology, College of Basic Medical Sciences, China Medical University, Shenyang 110122, China
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Luca E, Turcekova K, Hartung A, Mathes S, Rehrauer H, Krützfeldt J. Genetic deletion of microRNA biogenesis in muscle cells reveals a hierarchical non-clustered network that controls focal adhesion signaling during muscle regeneration. Mol Metab 2020; 36:100967. [PMID: 32240622 PMCID: PMC7139120 DOI: 10.1016/j.molmet.2020.02.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Revised: 02/19/2020] [Accepted: 02/20/2020] [Indexed: 12/20/2022] Open
Abstract
OBJECTIVE Decreased muscle mass is a major contributor to age-related morbidity, and strategies to improve muscle regeneration during ageing are urgently needed. Our aim was to identify the subset of relevant microRNAs (miRNAs) that partake in critical aspects of muscle cell differentiation, irrespective of computational predictions, genomic clustering or differential expression of the miRNAs. METHODS miRNA biogenesis was deleted in primary myoblasts using a tamoxifen-inducible CreLox system and combined with an add-back miRNA library screen. RNA-seq experiments, cellular signalling events, and glycogen synthesis, along with miRNA inhibitors, were performed in human primary myoblasts. Muscle regeneration in young and aged mice was assessed using the cardiotoxin (CTX) model. RESULTS We identified a hierarchical non-clustered miRNA network consisting of highly (miR-29a), moderately (let-7) and mildly active (miR-125b, miR-199a, miR-221) miRNAs that cooperate by directly targeting members of the focal adhesion complex. Through RNA-seq experiments comparing single versus combinatorial inhibition of the miRNAs, we uncovered a fundamental feature of this network, that miRNA activity inversely correlates to miRNA cooperativity. During myoblast differentiation, combinatorial inhibition of the five miRNAs increased activation of focal adhesion kinase (FAK), AKT, and p38 mitogen-activated protein kinase (MAPK), and improved myotube formation and insulin-dependent glycogen synthesis. Moreover, antagonizing the miRNA network in vivo following CTX-induced muscle regeneration enhanced muscle mass and myofiber formation in young and aged mice. CONCLUSION Our results provide novel insights into the dynamics of miRNA cooperativity and identify a miRNA network as therapeutic target for impaired focal adhesion signalling and muscle regeneration during ageing.
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Affiliation(s)
- Edlira Luca
- Division of Endocrinology, Diabetes, and Clinical Nutrition, University Hospital Zurich, 8091, Switzerland
| | - Katarina Turcekova
- Division of Endocrinology, Diabetes, and Clinical Nutrition, University Hospital Zurich, 8091, Switzerland; Competence Center Personalized Medicine UZH/ETH, ETH Zurich and University of Zurich, 8091, Switzerland
| | - Angelika Hartung
- Division of Endocrinology, Diabetes, and Clinical Nutrition, University Hospital Zurich, 8091, Switzerland
| | - Sebastian Mathes
- Division of Endocrinology, Diabetes, and Clinical Nutrition, University Hospital Zurich, 8091, Switzerland; Zurich Center for Integrative Human Physiology, University of Zurich, 8091, Switzerland
| | - Hubert Rehrauer
- Functional Genomics Center Zurich UZH/ETH, ETH Zurich and University of Zurich, 8091, Switzerland
| | - Jan Krützfeldt
- Division of Endocrinology, Diabetes, and Clinical Nutrition, University Hospital Zurich, 8091, Switzerland; Competence Center Personalized Medicine UZH/ETH, ETH Zurich and University of Zurich, 8091, Switzerland; Zurich Center for Integrative Human Physiology, University of Zurich, 8091, Switzerland.
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Icariside II facilitates the differentiation of ADSCs to schwann cells and restores erectile dysfunction through regulation of miR-33/GDNF axis. Biomed Pharmacother 2020; 125:109888. [PMID: 32066039 DOI: 10.1016/j.biopha.2020.109888] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Revised: 01/11/2020] [Accepted: 01/14/2020] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND Adipose derived stem cells (ADSCs) have the property to differentiate into neuron-like cells, which may provide a novel insight for the restoration of erectile dysfunction (ED) mainly induced by cavernous nerve injury. Icariside II (ICA II) has been reported to play a key role in the regulation of erectile function via stimulating the differentiation of ADSCs to Schwann Cells (SCs). However, the function and molecular mechanisms of ICA II in ED remains to be further clarified. METHODS The expression of S100, P75, GDNF and miR-33 was detected by qRT-PCR. And the relative proteins expression was determined by western blot. Cell viability was measured by Cell Counting Kit-8 (CCK-8) assay. Bioinformatics, luciferase reporter and RNA immunoprecipitation (RIP) assays were performed to verify the interaction between miR-33 and GDNF. Intracavernosal pressure (ICP), the ratio of ICP and mean arterial pressure (MAP), as well as nNOS expression were examined to evaluate the erectile function of SD rats with bilateral cavernous nerve injury (BCNI). RESULTS ICA II and miR-33 respectively promoted and inhibited the differentiation of ADSCs to SCs. MiR-33 could negatively regulate P75 and GDNF expression. ICA II exerted promotion effects on differentiation of ADSCs to SCs via regulating miR-33. GDNF was identified to be a target of miR-33. MiR-33 overexpression abrogated the stimulatory effect of ICA II on ADSCs' differentiation, which was blocked by GDNF overexpression. treated with ICA II recovered the erectile function of BCNI model rats through regulation of miR-33. CONCLUSION ICA II contributed to the differentiation of ADSCs to SCs viamiR-33/GDNF axis, contributing to the recovery of erectile function in BCNI rats.
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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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miR-1185-1 and miR-548q Are Biomarkers of Response to Weight Loss and Regulate the Expression of GSK3B. Cells 2019; 8:cells8121548. [PMID: 31801236 PMCID: PMC6953011 DOI: 10.3390/cells8121548] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2019] [Revised: 11/26/2019] [Accepted: 11/27/2019] [Indexed: 12/12/2022] Open
Abstract
The aim of the present investigation was to identify putative miRNAs involved in the response to weight loss. Reverse-transcribed RNA isolated from white blood cells (WBCs) of a subpopulation from the Reduction of the Metabolic Syndrome in Navarra-Spain (RESMENA-S) study (low-responders (LR) and high-responders (HR)) was hybridized in a gene expression microarray. Moreover, miRNAs were sequenced by miRNA-Seq. It was found that miR-548q and miR-1185-1 were overexpressed in HR, both in the microarray and in the miRNA-Seq. A bioinformatic prediction of putative target genes of the selected miRNAs found that GSK3B, a putative target for miR-548q and miR-1185-1, was downregulated in HR. Particular 3′-UTR binding regions of GSK3B were cloned downstream of the firefly luciferase gene. HEK-293T cells were co-transfected with either 0.25 μg of empty pmiR-GLO or pmiR-GLO-548q-3′-UTR/pmiR-GLO-1185-1-3′-UTR, and 7.5 pmol of miR-548q/miR-1185-1 mimics, demonstrating that miR-1185-1 bound to the 3′-UTR region of GSK3B. THP-1 cells were transfected with either 20/40 nM of miR-548q/miR-1185-1 mimics, evidencing that miR-1185-1inhibited the expression of the gene when transfected at doses of 20/40 nM, whereas miR-548q inhibited GSK3B expression at a dose of 40 nM. As a conclusion, miR-548q and miR-1185-1 levels in WBCs are biomarkers of response to weight-loss diets and could be involved in the regulation of the proinflammatory gene GSK3B.
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15
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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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Zhang B, Shetti D, Fan C, Wei K. miR-29b-3p promotes progression of MDA-MB-231 triple-negative breast cancer cells through downregulating TRAF3. Biol Res 2019; 52:38. [PMID: 31349873 PMCID: PMC6659300 DOI: 10.1186/s40659-019-0245-4] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2019] [Accepted: 07/19/2019] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Breast cancer is the second common malignant cancer among females worldwide. Accumulating studies have indicated that deregulation of miRNA expression in breast cancer will contribute to tumorigenesis and form different cancer subtypes. However, the reported studies on miR-29b-3p-regulated breast cancer are limited so far. Herein, we investigated the role and mechanism of miR-29b-3p in the triple negative breast cancer cell line MDA-MB-231. METHODS The relative miR-29b-3p expression in different breast cancer cell lines were determined by qRT-PCR. CCK8 and colony formation assay were used to determine the influence of miR-29b-3p on cell proliferation. Migration assay and invasion assay were performed for cell migration and invasion respectively. To study the cell integrity immunofluorescence was performed. TUNEL assay, flow cytometry assay, hoechst staining and western blot were conducted to determine the influence of miR-29b-3p inhibitor on cell apoptosis. TRAF3 was found to be the target gene of miR-29b-3p using bioinformatics predictions. Dual-luciferase assay was performed to determine the relative luciferase activity in NC, miR-29b-3p mimic, miR-29b-3p inhibitor with TRAF3 3'-UTR wt or TRAF3 3'-UTR mt reporter plasmids. The proteins expression of NF-κB signaling pathway in MDA-MB-231 after transfection with NC, miR-29b-3p mimic, miR-29b-3p inhibitor were determined by western blot. RESULTS The miR-29b-3p expression was significantly increased in MDA-MB-231 compare with MCF-10A. miR-29b-3p inhibitor reduced the cell viability of MDA-MB-231 and inhibited cell migration and invasion. Cell cytoskeleton integrity destroyed after miR-29b-3p inhibitor treatment. Furthermore, we identified the mechanism and found miR-29b-3p targets the TRAF3 and activates NF-κB signaling pathway. CONCLUSIONS From the above studies, our results indicated that miR-29b-3p acts as a promoter for the development of MDA-MB-231.
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Affiliation(s)
- Bao Zhang
- School of Biology and Biological Engineering, South China University of Technology, Guangzhou, 510640, People's Republic of China
| | - Dattatrya Shetti
- School of Biology and Biological Engineering, South China University of Technology, Guangzhou, 510640, People's Republic of China
| | - Conghui Fan
- School of Biology and Biological Engineering, South China University of Technology, Guangzhou, 510640, People's Republic of China
| | - Kun Wei
- School of Biology and Biological Engineering, South China University of Technology, Guangzhou, 510640, People's Republic of China.
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Glantschnig C, Koenen M, Gil‐Lozano M, Karbiener M, Pickrahn I, Williams‐Dautovich J, Patel R, Cummins CL, Giroud M, Hartleben G, Vogl E, Blüher M, Tuckermann J, Uhlenhaut H, Herzig S, Scheideler M. A miR‐29a‐driven negative feedback loop regulates peripheral glucocorticoid receptor signaling. FASEB J 2019; 33:5924-5941. [DOI: 10.1096/fj.201801385rr] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Christina Glantschnig
- Institute for Diabetes and Cancer (IDC)Helmholtz Center Munich Neuherberg Germany
- Joint Heidelberg‐IDC, Inner Medicine 1Heidelberg University Hospital Heidelberg Germany
- German Center for Diabetes Research (DZD) Neuherberg Germany
| | - Mascha Koenen
- Institute of Comparative Molecular EndocrinologyUlm University Ulm Germany
| | - Manuel Gil‐Lozano
- Institute for Diabetes and Cancer (IDC)Helmholtz Center Munich Neuherberg Germany
- Joint Heidelberg‐IDC, Inner Medicine 1Heidelberg University Hospital Heidelberg Germany
- German Center for Diabetes Research (DZD) Neuherberg Germany
| | - Michael Karbiener
- Division of Phoniatrics, Speech, and SwallowingDepartment of OtorhinolaryngologyUniversity HospitalMedical University of Graz Graz Austria
| | - Ines Pickrahn
- Department of Legal MedicineUniversity of Salzburg Salzburg Austria
| | | | - Rucha Patel
- Department of Pharmaceutical SciencesUniversity of Toronto Toronto Ontario Canada
| | - Carolyn L. Cummins
- Department of Pharmaceutical SciencesUniversity of Toronto Toronto Ontario Canada
| | - Maude Giroud
- Institute for Diabetes and Cancer (IDC)Helmholtz Center Munich Neuherberg Germany
- Joint Heidelberg‐IDC, Inner Medicine 1Heidelberg University Hospital Heidelberg Germany
- German Center for Diabetes Research (DZD) Neuherberg Germany
| | - Götz Hartleben
- Institute for Diabetes and Cancer (IDC)Helmholtz Center Munich Neuherberg Germany
- Joint Heidelberg‐IDC, Inner Medicine 1Heidelberg University Hospital Heidelberg Germany
- German Center for Diabetes Research (DZD) Neuherberg Germany
| | - Elena Vogl
- Institute for Diabetes and Cancer (IDC)Helmholtz Center Munich Neuherberg Germany
- Joint Heidelberg‐IDC, Inner Medicine 1Heidelberg University Hospital Heidelberg Germany
- German Center for Diabetes Research (DZD) Neuherberg Germany
| | - Matthias Blüher
- Clinic for Endocrinology and NephrologyMedical Research Center Leipzig Germany
| | - Jan Tuckermann
- Institute of Comparative Molecular EndocrinologyUlm University Ulm Germany
| | - Henriette Uhlenhaut
- Research Group Molecular EndocrinologyHelmholtz Center Munich Neuherberg Germany
| | - Stephan Herzig
- Institute for Diabetes and Cancer (IDC)Helmholtz Center Munich Neuherberg Germany
- Joint Heidelberg‐IDC, Inner Medicine 1Heidelberg University Hospital Heidelberg Germany
- German Center for Diabetes Research (DZD) Neuherberg Germany
- School of MedicineTechnical University Munich Munich Germany
| | - Marcel Scheideler
- Institute for Diabetes and Cancer (IDC)Helmholtz Center Munich Neuherberg Germany
- Joint Heidelberg‐IDC, Inner Medicine 1Heidelberg University Hospital Heidelberg Germany
- German Center for Diabetes Research (DZD) Neuherberg Germany
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18
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Tan Y, Gan M, Fan Y, Li L, Zhong Z, Li X, Bai L, Zhao Y, Niu L, Shang Y, Zhang S, Zhu L. miR-10b-5p regulates 3T3-L1 cells differentiation by targeting Apol6. Gene 2018; 687:39-46. [PMID: 30423386 DOI: 10.1016/j.gene.2018.11.028] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2018] [Revised: 11/04/2018] [Accepted: 11/09/2018] [Indexed: 12/12/2022]
Abstract
MicroRNAs (miRNAs) are small, non-coding RNAs that have been proposed to control or fine-tune complex genetic pathways by post-transcriptional regulation of target genes. It was proved that numerous miRNAs have influence on the biology of adipocytes as well as on the function of adipose tissues. This study shows that miR-10b-5p expression was decreased in mice, rats, and human under obesity. In addition, the obtained results indicated that the expression level of miR-10b-5p was increased in 3T3-L1 pre-adipocytes without manifesting a significant role in 3T3-L1 cells proliferation. On the other hand, the downregulation of miR-10b-5p by the inhibitor played a role in 3T3-L1 cells differentiation and adipogenesis. Our results strongly suggest that Apol6 was the target gene of miR-10b-5p. The inhibition of miR-10b-5p promoted the differentiation of 3T3-L1 cells and adipogenesis by upregulating the Apol6 expression. Then, the upregulated Apol6 acted as an oncogene in certain obesity-related cancers. These results indicate that miR-10b-5p may have a therapeutic significance for obesity and obesity-related cancers.
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Affiliation(s)
- Ya Tan
- College of Animal Science & Technology, Sichuan Agricultural University, Chengdu 611130, Sichuan, China; Institute of Animal Husbandry and Veterinary, Guizhou Academy of Agricultural Science, Guiyang 550005, Guizhou, China
| | - Mailin Gan
- College of Animal Science & Technology, Sichuan Agricultural University, Chengdu 611130, Sichuan, China
| | - Yuan Fan
- College of Animal Science & Technology, Sichuan Agricultural University, Chengdu 611130, Sichuan, China
| | - Liang Li
- College of Animal Science & Technology, Sichuan Agricultural University, Chengdu 611130, Sichuan, China; Institute of Animal Husbandry and Veterinary, Guizhou Academy of Agricultural Science, Guiyang 550005, Guizhou, China
| | - Zhijun Zhong
- Animal Breeding and Genetics Key Laboratory of Sichuan Province, Sichuan, Animal Science Academy, Chengdu 610066, China
| | - Xuewei Li
- College of Animal Science & Technology, Sichuan Agricultural University, Chengdu 611130, Sichuan, China
| | - Lin Bai
- College of Animal Science & Technology, Sichuan Agricultural University, Chengdu 611130, Sichuan, China
| | - Ye Zhao
- College of Animal Science & Technology, Sichuan Agricultural University, Chengdu 611130, Sichuan, China
| | - Lili Niu
- College of Animal Science & Technology, Sichuan Agricultural University, Chengdu 611130, Sichuan, China
| | - Yishun Shang
- Guizhou Institute of Prataculture, Guizhou Academy of Agricultural Science, Guiyang 550005, Guizhou, China
| | - Shunhua Zhang
- College of Animal Science & Technology, Sichuan Agricultural University, Chengdu 611130, Sichuan, China.
| | - Li Zhu
- College of Animal Science & Technology, Sichuan Agricultural University, Chengdu 611130, Sichuan, China.
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Sadie-Van Gijsen H. Adipocyte biology: It is time to upgrade to a new model. J Cell Physiol 2018; 234:2399-2425. [PMID: 30192004 DOI: 10.1002/jcp.27266] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2017] [Accepted: 07/25/2018] [Indexed: 12/15/2022]
Abstract
Globally, the obesity pandemic is profoundly affecting quality of life and economic productivity, but efforts to address this, especially on a pharmacological level, have generally proven unsuccessful to date, serving as a stark demonstration that our understanding of adipocyte biology and pathophysiology is incomplete. To deliver better insight into adipocyte function and obesity, we need improved adipocyte models with a high degree of fidelity in representing the in vivo state and with a diverse range of experimental applications. Adipocyte cell lines, especially 3T3-L1 cells, have been used extensively over many years, but these are limited in terms of relevance and versatility. In this review, I propose that primary adipose-derived stromal/stem cells (ASCs) present a superior model with which to study adipocyte biology ex vivo. In particular, ASCs afford us the opportunity to study adipocytes from different, functionally distinct, adipose depots and to investigate, by means of in vivo/ex vivo studies, the effects of many different physiological and pathophysiological factors, such as age, body weight, hormonal status, diet and nutraceuticals, as well as disease and pharmacological treatments, on the biology of adipocytes and their precursors. This study will give an overview of the characteristics of ASCs and published studies utilizing ASCs, to highlight the areas where our knowledge is lacking. More comprehensive studies in primary ASCs will contribute to an improved understanding of adipose tissue, in healthy and dysfunctional states, which will enhance our efforts to more successfully manage and treat obesity.
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Affiliation(s)
- Hanél Sadie-Van Gijsen
- Division of Endocrinology, Department of Medicine, Faculty of Medicine and Health Sciences, Stellenbosch University, Parow, South Africa.,Division of Medical Physiology, Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Stellenbosch University, Parow, South Africa
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20
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MicroRNA-200b regulates preadipocyte proliferation and differentiation by targeting KLF4. Biomed Pharmacother 2018; 103:1538-1544. [DOI: 10.1016/j.biopha.2018.04.170] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2018] [Revised: 04/23/2018] [Accepted: 04/23/2018] [Indexed: 01/17/2023] Open
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Matoušková P, Hanousková B, Skálová L. MicroRNAs as Potential Regulators of Glutathione Peroxidases Expression and Their Role in Obesity and Related Pathologies. Int J Mol Sci 2018; 19:ijms19041199. [PMID: 29662007 PMCID: PMC5979329 DOI: 10.3390/ijms19041199] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2018] [Revised: 04/08/2018] [Accepted: 04/10/2018] [Indexed: 12/19/2022] Open
Abstract
Glutathione peroxidases (GPxs) belong to the eight-member family of phylogenetically related enzymes with different cellular localization, but distinct antioxidant function. Several GPxs are important selenoproteins. Dysregulated GPx expression is connected with severe pathologies, including obesity and diabetes. We performed a comprehensive bioinformatic analysis using the programs miRDB, miRanda, TargetScan, and Diana in the search for hypothetical microRNAs targeting 3′untranslated regions (3´UTR) of GPxs. We cross-referenced the literature for possible intersections between our results and available reports on identified microRNAs, with a special focus on the microRNAs related to oxidative stress, obesity, and related pathologies. We identified many microRNAs with an association with oxidative stress and obesity as putative regulators of GPxs. In particular, miR-185-5p was predicted by a larger number of programs to target six GPxs and thus could play the role as their master regulator. This microRNA was altered by selenium deficiency and can play a role as a feedback control of selenoproteins’ expression. Through the bioinformatics analysis we revealed the potential connection of microRNAs, GPxs, obesity, and other redox imbalance related diseases.
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Affiliation(s)
- Petra Matoušková
- Faculty of Pharmacy, Department of Biochemical Sciences, Charles University, 500 05, Hradec Králové, Czech Republic.
| | - Barbora Hanousková
- Faculty of Pharmacy, Department of Biochemical Sciences, Charles University, 500 05, Hradec Králové, Czech Republic.
| | - Lenka Skálová
- Faculty of Pharmacy, Department of Biochemical Sciences, Charles University, 500 05, Hradec Králové, Czech Republic.
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Thanikachalam PV, Ramamurthy S, Wong ZW, Koo BJ, Wong JY, Abdullah MF, Chin YH, Chia CH, Tan JY, Neo WT, Tan BS, Khan WF, Kesharwani P. Current attempts to implement microRNA-based diagnostics and therapy in cardiovascular and metabolic disease: a promising future. Drug Discov Today 2018; 23:460-480. [DOI: 10.1016/j.drudis.2017.10.020] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2017] [Revised: 10/09/2017] [Accepted: 10/23/2017] [Indexed: 12/12/2022]
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MicroRNAs and adipocytokines: Promising biomarkers for pharmacological targets in diabetes mellitus and its complications. Biomed Pharmacother 2017; 93:1326-1336. [DOI: 10.1016/j.biopha.2017.07.059] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2017] [Revised: 07/08/2017] [Accepted: 07/11/2017] [Indexed: 02/06/2023] Open
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Knockdown of lncRNA MIR31HG inhibits adipocyte differentiation of human adipose-derived stem cells via histone modification of FABP4. Sci Rep 2017; 7:8080. [PMID: 28808264 PMCID: PMC5556051 DOI: 10.1038/s41598-017-08131-6] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2016] [Accepted: 07/05/2017] [Indexed: 01/15/2023] Open
Abstract
Adipogenesis plays an important role in the regulation of whole-body energy homeostasis and is inextricably related to obesity. Several studies have highlighted the relevance of microRNAs in adipocyte differentiation, but the contributions of long non-coding RNAs (lncRNAs) are still largely uncharacterized. Here, we determined that lncRNA MIR31HG is related to adipocyte lineage commitment. We demonstrated that knockdown of MIR31HG inhibited adipocyte differentiation, whereas overexpression of MIR31HG promoted adipogenesis in vitro and in vivo. Furthermore, inhibition of MIR31HG reduced the enrichment of active histone markers, histone H3 lysine 4 trimethylation (H3K4me3) and acetylation (AcH3), in the promoter of the adipogenic-related gene, fatty acid binding protein 4 (FABP4), leading to suppression of its expression and adipogenesis. These results provide new insights into the molecular mechanisms of MIR31HG in terms of adipogenesis and may have implications for obesity and associated disorders.
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Hu F, Xu P, Sun B, Xiao Z. Differences in the MicroRNA profiles of subcutaneous adipose-derived stem cells and omental adipose-derived stem cells. Gene 2017; 625:55-63. [PMID: 28483594 DOI: 10.1016/j.gene.2017.05.014] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2017] [Revised: 04/30/2017] [Accepted: 05/04/2017] [Indexed: 01/09/2023]
Abstract
Adipose-derived stem cells (ASCs) isolated from subcutaneous (SC) and omentum (O) share similar characteristics, but the differences in their microRNA profiles are mostly unknown. In this study, besides significant differences in cell morphology and the differentiation ability of the two types of ASCs, the microRNA expression profiles of the cell lines were determined using SOLiD next-generation sequencing. The in-depth analysis found that miR-214, miR-222, miR-181a, miR-26a and miR-23/27/24 clusters and miR-375 act as "markers" to distinguish the different fat deposit-derived ASCs. Additionally, the global miRNA-mRNA interaction differences were revealed, and the results of the GO term enrichment and KEGG pathway in the DAVID tool showed that the molecular function, biological process and signaling pathways showed some different in the two types of ASCs. Our findings provided a clue to a more thorough understanding of the difference between SC-ASCs and O-ASCs and indicate their different potentials for clinical use.
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Affiliation(s)
- Feihu Hu
- School of Biological Science and Medical Engineering, State Key Laboratory of Bioelectronics, Southeast University, Nanjing, Jiangsu, China; Medical School, Southeast University, Nanjing, Jiangsu, China
| | - Peng Xu
- School of Biological Science and Medical Engineering, State Key Laboratory of Bioelectronics, Southeast University, Nanjing, Jiangsu, China
| | - Bo Sun
- School of Biological Science and Medical Engineering, State Key Laboratory of Bioelectronics, Southeast University, Nanjing, Jiangsu, China
| | - Zhongdang Xiao
- School of Biological Science and Medical Engineering, State Key Laboratory of Bioelectronics, Southeast University, Nanjing, Jiangsu, China.
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