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Sun L, Zhang D, Qin L, Liu Q, Wang G, Shi D, Huang B. Rapid direct conversion of bovine non-adipogenic fibroblasts into adipocyte-like cells by a small-molecule cocktail. Front Cell Dev Biol 2023; 11:1020965. [PMID: 36819108 PMCID: PMC9932023 DOI: 10.3389/fcell.2023.1020965] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Accepted: 01/16/2023] [Indexed: 02/05/2023] Open
Abstract
Introduction: The molecular regulation mechanism of fat deposition in bovine and its improvement on beef quality are important research directions in the livestock industry. The research of molecular mechanisms that govern the regulation and differentiation of adipocytes may conduct to understand the mechanism of obesity, lipid disorders, and fat deposition. In the recent decade, small-molecule compounds have been widely used in reprogramming and transdifferentiation fields, which can promote the induction efficiency, replace exogenous genes, or even induce cell fate conversion alone. Furthermore, small-molecule compound induction is expected to be a novel approach to generate new cell types from somatic cells in vitro and in vivo. Methods: In this study, we established rapid chemically induced platform for transdifferentiation of bovine ear fibroblasts into adipocyte-like cells using a small-molecule cocktail (Repsox, VPA, TTNPB). The chemically induced adipocytes (CiADCs) were characterized by lipid staining, qRT-PCR and WB. Bovine natural adipocytes were used as positive control, and the expression of adipocyte-related marker genes in CiADCs were analyzed. Moreover, RNA-Seq explore the mechanism of RVB in the regulation of Bovine adipocyte transdifferentiation. Results: In this study, the chemically induced adipocytes (CiADCs) could be identified as early as day 6. The CiADCs appeared to be circular and rich of lipid droplets. The adipocyte-specific genes of LPL, PPARγ, IGF1, GPD1, C/EBPδ, ADIPOQ, PCK2, FAS, C/EBPβ, PPARGC1A, C/EBPα, and CFD were detected to be significantly upregulated in both CiADCs and natural adipocytes. Western blot analysis also confirmed the increase C/EBPα and PPARγ protein level in induced adipocytes (CiADCs-6d) treated with RVB. In addition, we also found that the signaling pathways (PPAR signaling pathway, PI3K-Akt signaling pathway, p53 signaling pathway, MAPK signaling pathway, and ECM-receptor interaction) regulated by the DEGs played a vital role in adipogenesis. Discussion: In the present study, a combination of small-molecule compounds RVB was used to transdifferentiate bovine ear fibroblasts into the chemically-induced adipocyte cells (CiADCs) that have a large number of lipid droplets. Importantly, the small-molecule cocktail significantly shortened the reprogramming turnaround time. The morphology of CiADCs is close to the "ring type" of natural differentiated adipocytes on sixth day. And, the CiADCs showed similar adipocyte-specific gene expression patterns to natural adipocytes. Furthermore, RVB increased protein expression of PPARγ and C/EBPα in the chemically-induced adipocytes (CiADCs-6d). Our findings reveal that the signaling pathways of C/EBPα and PPARγ play pivotal roles in this transdifferentiation process. In addition, we also found that the signaling pathways (PPAR signaling pathway, PI3K-Akt signaling pathway, p53 signaling pathway, MAPK signaling pathway, and ECM-receptor interaction) regulated by the DEGs played a vital role in adipogenesis. In general, this study provides valuable evidence to deepen our understanding of the molecular mechanism of small molecule cocktails in regulating adipogenesis.
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Affiliation(s)
- Longfei Sun
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, School of Animal Science and Technology, Guangxi University, Nanning, Guangxi, China
| | - Dandan Zhang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, School of Animal Science and Technology, Guangxi University, Nanning, Guangxi, China,Guangxi Academy of Medical Science, Nanning, Guangxi, China
| | - Liangshan Qin
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, School of Animal Science and Technology, Guangxi University, Nanning, Guangxi, China
| | - Quanhui Liu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, School of Animal Science and Technology, Guangxi University, Nanning, Guangxi, China
| | - Guodong Wang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, School of Animal Science and Technology, Guangxi University, Nanning, Guangxi, China
| | - Deshun Shi
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, School of Animal Science and Technology, Guangxi University, Nanning, Guangxi, China,*Correspondence: Deshun Shi, ; Ben Huang,
| | - Ben Huang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, School of Animal Science and Technology, Guangxi University, Nanning, Guangxi, China,Guangxi Academy of Medical Science, Nanning, Guangxi, China,*Correspondence: Deshun Shi, ; Ben Huang,
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Li YX, Hsiao CH, Chang YF. N-acetyl cysteine prevents arecoline-inhibited C2C12 myoblast differentiation through ERK1/2 phosphorylation. PLoS One 2022; 17:e0272231. [PMID: 35901044 PMCID: PMC9333315 DOI: 10.1371/journal.pone.0272231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Accepted: 07/14/2022] [Indexed: 11/23/2022] Open
Abstract
Arecoline is known to induce reactive oxygen species (ROS). Our previous studies showed that arecoline inhibited myogenic differentiation and acetylcholine receptor cluster formation of C2C12 myoblasts. N-acetyl-cysteine (NAC) is a known ROS scavenger. We hypothesize that NAC scavenges the excess ROS caused by arecoline. In this article we examined the effect of NAC on the inhibited myoblast differentiation by arecoline and related mechanisms. We found that NAC less than 2 mM is non-cytotoxic to C2C12 by viability analysis. We further demonstrated that NAC attenuated the decreased number of myotubes and nuclei in each myotube compared to arecoline treatment by H & E staining. We also showed that NAC prevented the decreased expression level of the myogenic markers, myogenin and MYH caused by arecoline, using immunocytochemistry and western blotting. Finally, we found that NAC restored the decreased expression level of p-ERK1/2 by arecoline. In conclusion, our results indicate that NAC attenuates the damage of the arecoline-inhibited C2C12 myoblast differentiation by the activation/phosphorylation of ERK. This is the first report to demonstrate that NAC has beneficial effects on skeletal muscle myogenesis through ERK1/2 upon arecoline treatment. Since defects of skeletal muscle associates with several diseases, NAC can be a potent drug candidate in diseases related to defects in skeletal muscle myogenesis.
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Affiliation(s)
- Yi-Xuan Li
- Department of Biomedical Science and Environmental Biology, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Chun-Hung Hsiao
- Department of Biomedical Science and Environmental Biology, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Yung-Fu Chang
- Department of Biomedical Science and Environmental Biology, Kaohsiung Medical University, Kaohsiung, Taiwan
- Translational Research Center of Neuromuscular Diseases, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
- Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
- * E-mail:
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Adachi Y, Masuda M, Sakakibara I, Uchida T, Niida Y, Mori Y, Kamei Y, Okumura Y, Ohminami H, Ohnishi K, Yamanaka-Okumura H, Nikawa T, Taketani Y. All-trans retinoic acid changes muscle fiber type via increasing GADD34 dependent on MAPK signal. Life Sci Alliance 2022; 5:5/7/e202101345. [PMID: 35318262 PMCID: PMC8960774 DOI: 10.26508/lsa.202101345] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 03/09/2022] [Accepted: 03/11/2022] [Indexed: 11/25/2022] Open
Abstract
ATRA increases GADD34 expression by decreasing the expression of Six1, which down-regulates the transcriptional activity with TLE3 and increasing mRNA stability through blocking the interaction between TTP and ARE on GADD34 mRNA, resulting in muscle fiber type change. All-trans retinoic acid (ATRA) increases the sensitivity to unfolded protein response in differentiating leukemic blasts. The downstream transcriptional factor of PERK, a major arm of unfolded protein response, regulates muscle differentiation. However, the role of growth arrest and DNA damage-inducible protein 34 (GADD34), one of the downstream factors of PERK, and the effects of ATRA on GADD34 expression in muscle remain unclear. In this study, we identified ATRA increased the GADD34 expression independent of the PERK signal in the gastrocnemius muscle of mice. ATRA up-regulated GADD34 expression through the transcriptional activation of GADD34 gene via inhibiting the interaction of homeobox Six1 and transcription co-repressor TLE3 with the MEF3-binding site on the GADD34 gene promoter in skeletal muscle. ATRA also inhibited the interaction of TTP, which induces mRNA degradation, with AU-rich element on GADD34 mRNA via p-38 MAPK, resulting in the instability of GADD34 mRNA. Overexpressed GADD34 in C2C12 cells changes the type of myosin heavy chain in myotubes. These results suggest ATRA increases GADD34 expression via transcriptional and post-transcriptional regulation, which changes muscle fiber type.
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Affiliation(s)
- Yuichiro Adachi
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Masashi Masuda
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Iori Sakakibara
- Department of Nutritional Physiology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Takayuki Uchida
- Department of Nutritional Physiology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Yuki Niida
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Yuki Mori
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Yuki Kamei
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Yosuke Okumura
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Hirokazu Ohminami
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Kohta Ohnishi
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Hisami Yamanaka-Okumura
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Takeshi Nikawa
- Department of Nutritional Physiology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Yutaka Taketani
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
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Ma B, Xu X, He S, Zhang J, Wang X, Wu P, Liu J, Jiang H, Zheng M, Li W, Wang T. STC2 modulates ERK1/2 signaling to suppress adipogenic differentiation of human bone marrow mesenchymal stem cells. Biochem Biophys Res Commun 2020; 524:163-168. [PMID: 31982135 DOI: 10.1016/j.bbrc.2020.01.060] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2019] [Accepted: 01/10/2020] [Indexed: 01/09/2023]
Abstract
Stanniocalcin-2 (STC2) is a glycoprotein that has been found to play key roles in the regulation of cancer, diabetes mellitus, and osteogenesis. Herein we sought to extend these past studies by examining the importance of STC2 in the context of human mesenchymal stem cell (hMSC) adipogenic differentiation and exploring the mechanisms underlying such importance. We found that STC2 expression was significantly reduced on day 7 of hMSC adipogenesis. When we deliberately overexpressed STC2 in these cells, this resulted in significantly decreased expression of both peroxisome proliferator-activated receptor γ (PPARγ) and Fatty Acid Binding Protein-4 (FABP4) together with increased extracellular-signal regulated kinase 1/2 (ERK1/2) phosphorylation and markedly reduced lipid droplet formation within cells. Treatment of cells using the ERK inhibitor U0126 disrupted this ERK1/2 phosphorylation and restored the adipogenic differentiation of these hMSCs. When we instead knocked down STC2 expression, the opposite phenotypes were observed. Together these findings thus reveal that STC2 modulates ERK1/2 signaling in hMSCs so as to suppress their adipogenic differentiation.
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Affiliation(s)
- Baicheng Ma
- Key Laboratory of System Bio-medicine of Jiangxi Province, Jiujiang University, Jiujiang, 332000, China
| | - Xiaoyuan Xu
- Key Laboratory of System Bio-medicine of Jiangxi Province, Jiujiang University, Jiujiang, 332000, China
| | - Shan He
- Key Laboratory of System Bio-medicine of Jiangxi Province, Jiujiang University, Jiujiang, 332000, China
| | - Jie Zhang
- Key Laboratory of System Bio-medicine of Jiangxi Province, Jiujiang University, Jiujiang, 332000, China
| | - Xinping Wang
- Key Laboratory of System Bio-medicine of Jiangxi Province, Jiujiang University, Jiujiang, 332000, China
| | - Ping Wu
- Key Laboratory of System Bio-medicine of Jiangxi Province, Jiujiang University, Jiujiang, 332000, China
| | - Jianyun Liu
- Key Laboratory of System Bio-medicine of Jiangxi Province, Jiujiang University, Jiujiang, 332000, China
| | - He Jiang
- Key Laboratory of System Bio-medicine of Jiangxi Province, Jiujiang University, Jiujiang, 332000, China
| | - Meirong Zheng
- Key Laboratory of System Bio-medicine of Jiangxi Province, Jiujiang University, Jiujiang, 332000, China
| | - Weidong Li
- Key Laboratory of System Bio-medicine of Jiangxi Province, Jiujiang University, Jiujiang, 332000, China.
| | - Tao Wang
- Key Laboratory of System Bio-medicine of Jiangxi Province, Jiujiang University, Jiujiang, 332000, China.
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5
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Wang B, Nie W, Fu X, de Avila JM, Ma Y, Zhu MJ, Maquivar M, Parish SM, Busboom JR, Nelson ML, Du M. Neonatal vitamin A injection promotes cattle muscle growth and increases oxidative muscle fibers. J Anim Sci Biotechnol 2018; 9:82. [PMID: 30459947 PMCID: PMC6236944 DOI: 10.1186/s40104-018-0296-3] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2018] [Accepted: 09/26/2018] [Indexed: 01/12/2023] Open
Abstract
Background Vitamin A and its metabolite, retinoic acid (RA), are important regulators of cell differentiation and organ morphogenesis. Its impact on beef cattle muscle growth remains undefined. Method Angus steer calves were administrated with 0 (control) or 150,000 IU vitamin A (retinyl palmitate in glycerol, i.m.) per calf at birth and 1 month of age. At 2 months of age, a biopsy of the Biceps femoris muscle was obtained to analyze the immediate effects of vitamin A injection on myogenic capacity of muscle cells. The resulting steers were harvested at 14 months of age. Results Vitamin A administration increased cattle growth at 2 months. At 2 months of age, Vitamin A increased PAX7 positive satellite cells and the expression of myogenic marker genes including PAX7, MYF5, MYOD and MYOG. Muscle derived mononuclear cells were further isolated and induced myogenesis in vitro. More myotubes and a higher degree of myogenesis was observed in vitamin A groups. Consistently, vitamin A increased Latissimus dorsi (LD) muscle fiber size at harvest. In addition, vitamin A increased the ratio of oxidative type I and type IIA fibers and reduced the glycolic type IIX fibers. Furthermore, we found that RA, a key bioactive metabolite of vitamin A, activated PPARGC1A promoter, which explains the upregulated expression of PPARGC1A in skeletal muscle. Conclusion Vitamin A administration to neonatal calves enhanced postnatal muscle growth by promoting myogenesis and increasing satellite cell density, accompanied with a shift to oxidative muscle fibers.
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Affiliation(s)
- Bo Wang
- 1State Key Lab of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, 100193 People's Republic of China.,2Department of Animal Sciences, Washington State University, Pullman, WA 99164 USA
| | - Wei Nie
- 1State Key Lab of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, 100193 People's Republic of China.,2Department of Animal Sciences, Washington State University, Pullman, WA 99164 USA
| | - Xing Fu
- 2Department of Animal Sciences, Washington State University, Pullman, WA 99164 USA.,3Department of Animal Sciences, Louisiana State University, Baton Rouge, LA 70803 USA
| | - Jeanene M de Avila
- 2Department of Animal Sciences, Washington State University, Pullman, WA 99164 USA
| | - Yannan Ma
- 2Department of Animal Sciences, Washington State University, Pullman, WA 99164 USA.,4College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, 730070 Gansu People's Republic of China
| | - Mei-Jun Zhu
- 5School of Food Science, Washington State University, Pullman, WA 99164 USA
| | - Martin Maquivar
- 2Department of Animal Sciences, Washington State University, Pullman, WA 99164 USA
| | - Steven M Parish
- 6College of Veterinary Science, Washington State University, Pullman, WA 99164 USA
| | - Jan R Busboom
- 2Department of Animal Sciences, Washington State University, Pullman, WA 99164 USA
| | - Mark L Nelson
- 2Department of Animal Sciences, Washington State University, Pullman, WA 99164 USA
| | - Min Du
- 2Department of Animal Sciences, Washington State University, Pullman, WA 99164 USA
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6
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Ma YN, Wang B, Wang ZX, Gomez NA, Zhu MJ, Du M. Three-dimensional spheroid culture of adipose stromal vascular cells for studying adipogenesis in beef cattle. Animal 2018; 12:2123-2129. [PMID: 29467043 DOI: 10.1017/s1751731118000150] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
Protocols designed for the adipogenic differentiation of human and mouse cells are commonly used for inducing the adipogenesis of bovine stromal vascular cells. However, likely due to metabolic differences between ruminant and non-ruminant animals, these methods result in only few cells undergoing complete adipogenesis with minimal lipid droplet accumulation. Here, we discuss the development of an adipogenic differentiation protocol for bovine primary cells through a three-dimensional spheroid culture. Stromal vascular cells derived from bovine intramuscular fat were isolated and stored in liquid nitrogen before culturing. Cells were cultured in hanging drops for 3 days to allow for the formation of spherical structures. The spheroids were then transferred to cell culture plates with endothelial basal medium-2 for 3 days and in Dulbecco's Modified Eagle's Medium (DMEM) supplemented with a standard adipogenic cocktail for 3 additional days, which were then allowed to fully differentiate for 3 days in DMEM supplemented with insulin. Compared with conventional two-dimensional culture, cells in a three-dimensional spheroid culture system had higher adipogenic gene expression and consequently contained more adipocytes with larger lipid droplets. In addition, endothelial induction of spheroids prior to adipogenic differentiation is essential for efficient induction of adipogenesis of bovine stromal vascular cells, mimicking in vivo adipose development. In summary, the newly developed three-dimensional spheroid culture method is an efficient way to induce adipogenic differentiation and study adipose development of cells derived from ruminant animals, which also can be used for studying the role of angiogenesis in adipose development.
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Affiliation(s)
- Y N Ma
- 1College of Animal Science and Technology,Gansu Agricultural University,Lanzhou,Gansu 730070,P. R. China
| | - B Wang
- 2Department of Animal Sciences,Washington State University,Pullman,WA 99164,USA
| | - Z X Wang
- 2Department of Animal Sciences,Washington State University,Pullman,WA 99164,USA
| | - N A Gomez
- 2Department of Animal Sciences,Washington State University,Pullman,WA 99164,USA
| | - M J Zhu
- 3School of Food Science,Washington State University,Pullman,WA 99164,USA
| | - M Du
- 2Department of Animal Sciences,Washington State University,Pullman,WA 99164,USA
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Cao J, Ma Y, Yao W, Zhang X, Wu D. Retinoids Regulate Adipogenesis Involving the TGFβ/SMAD and Wnt/β-Catenin Pathways in Human Bone Marrow Mesenchymal Stem Cells. Int J Mol Sci 2017; 18:ijms18040842. [PMID: 28420144 PMCID: PMC5412426 DOI: 10.3390/ijms18040842] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2017] [Revised: 03/31/2017] [Accepted: 04/06/2017] [Indexed: 12/21/2022] Open
Abstract
Retinoids may regulate cell differentiation as ligands of retinoic acid receptors (RARs) and/or retinoid X receptors (RXRs). We showed that RAR agonists promoted adipogenesis by upregulating the expression of CCAAT/enhancer-binding protein β (C/EBPβ) in the early stages, but blocked adipogenesis at a later stage in human bone marrow mesenchymal stem cells (hBMSCs). RXR agonists promoted adipogenesis at all time points in hBMSCs. The effect of RAR agonists was mediated mainly by the RARβ subtype. RAR agonists, in contrast to RXR agonists, significantly promoted the expression of RARβ. Knockdown of the RARβ gene via small hairpin RNA (shRNA) attenuated the inhibition of RAR agonists toward adipogenesis. Furthermore, we found that RAR agonists upregulated the transforming growth factor β (TGFβ)/SMAD pathway and Wnt/β-catenin pathway on adipogenesis in hBMSCs, and the stimulating effects were noticeably decreased with the RARβ gene knockdown. Both RAR agonists and RXR agonists inhibited adipogenesis and blocked the promoter activity of C/EBPβ and peroxisome proliferator-activated receptor γ (PPARγ) in SW872 cell. These results indicated the RAR agonists perform dual roles in adipogenesis in hBMSCs, and the TGFβ/SMAD pathway and Wnt/β-catenin pathway may involve the inhibitory effect of RAR agonists. RARβ is the main receptor subtype mediating the effect. The roles of RXR agonists in adipogenesis exhibited cell type-specific differences, and may be based on the integration of signals from different RXR dimers.
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Affiliation(s)
- Jun Cao
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Wuhan University, Wuhan 430071, China.
| | - Yuhong Ma
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Wuhan University, Wuhan 430071, China.
| | - Weiqi Yao
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Wuhan University, Wuhan 430071, China.
| | - Xiaoye Zhang
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Wuhan University, Wuhan 430071, China.
| | - Dongcheng Wu
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Wuhan University, Wuhan 430071, China.
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