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González-Noriega JA, Valenzuela-Melendres M, Hernández-Mendoza A, Astiazarán-García H, Islava-Lagarda T, Tortoledo-Ortiz O, Huerta-Ocampo JÁ, de La Garza AL, Peña-Ramos EA. Angiotensin converting enzyme inhibitory hydrolysate and peptide fractions from chicken skin collagen, as modulators of lipid accumulation in adipocytes 3 T3-L1, after in vitro gastrointestinal digestion. Food Chem 2024; 460:140551. [PMID: 39083965 DOI: 10.1016/j.foodchem.2024.140551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2024] [Revised: 07/03/2024] [Accepted: 07/18/2024] [Indexed: 08/02/2024]
Abstract
Inhibitory activity against angiotensin-converting enzyme (IAACE) by chicken skin collagen hydrolysate (CSCH) and their peptide fractions before and after in-vitro gastrointestinal digestion, were evaluated; as well as their ability to modulate lipid accumulation in 3 T3-L1 adipocytes. Before digestion, peptide fraction <1 kDa (F4) showed the highest IAACE (p < 0.05) followed by CSCH. After these samples were digested, F4 presented an IAACE with IC50 similar to its digest (DF4) (188.84 and 220.03 μg/mL, respectively), which was 2-fold lower (p < 0.05) than IC50 of fraction <1 kDa from post-digested hydrolysate (FDH) (388.57 μg/mL). Nine peptides were identified as the potential ACE inhibitors in F4 and DF4. Addition of DF4 (800 μg/mL) reduced(p < 0.05) lipid accumulation by 83% within preadipocytes. A 45-60% reduction of lipid accumulation within differentiated adipocytes was obtained by adding FDH and DF4 (regardless the concentration). These results, digested CSCH and F4 with IAACE may be considered as potential adjuvants for obesity treatment.
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Affiliation(s)
- Julio Alfonso González-Noriega
- Centro de Investigación en Alimentación y Desarrollo, A.C., Coordinación de Ciencia y Tecnología de Alimentos de Origen Animal. Carr. Gustavo Astiazaran No. 46, Hermosillo, Sonora C.P. 83304, Mexico..
| | - Martín Valenzuela-Melendres
- Centro de Investigación en Alimentación y Desarrollo, A.C., Coordinación de Ciencia y Tecnología de Alimentos de Origen Animal. Carr. Gustavo Astiazaran No. 46, Hermosillo, Sonora C.P. 83304, Mexico..
| | - Adrián Hernández-Mendoza
- Centro de Investigación en Alimentación y Desarrollo, A.C., Coordinación de Ciencia y Tecnología de Alimentos de Origen Animal. Carr. Gustavo Astiazaran No. 46, Hermosillo, Sonora C.P. 83304, Mexico..
| | - Humberto Astiazarán-García
- Centro de Investigación en Alimentación y Desarrollo, A.C., Coordinación de Nutrición. Carr. Gustavo Astiazaran No. 46, Hermosillo, Sonora, Mexico. C,. P. 83304.
| | - Thalia Islava-Lagarda
- Centro de Investigación en Alimentación y Desarrollo, A.C., Coordinación de Ciencia y Tecnología de Alimentos de Origen Animal. Carr. Gustavo Astiazaran No. 46, Hermosillo, Sonora C.P. 83304, Mexico..
| | - Orlando Tortoledo-Ortiz
- Centro de Investigación en Alimentación y Desarrollo, A.C., Coordinación de Nutrición. Carr. Gustavo Astiazaran No. 46, Hermosillo, Sonora, Mexico. C,. P. 83304.
| | - José Ángel Huerta-Ocampo
- Centro de Investigación en Alimentación y Desarrollo, A.C., Coordinación de Ciencia de los Alimentos. Carr. Gustavo Astiazaran No. 46, Hermosillo, Sonora, Mexico. C,. P. 83304.
| | - Ana Laura de La Garza
- Universidad Autónoma de Nuevo León, Facultad de Salud Pública Nutrición, Centro de Investigación en Nutrición y Salud Pública, Monterrey, Nuevo León, Mexico.
| | - Etna Aída Peña-Ramos
- Centro de Investigación en Alimentación y Desarrollo, A.C., Coordinación de Ciencia y Tecnología de Alimentos de Origen Animal. Carr. Gustavo Astiazaran No. 46, Hermosillo, Sonora C.P. 83304, Mexico..
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2
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Pinette JA, Myers JW, Park WY, Bryant HG, Eddie AM, Wilson GA, Montufar C, Shaikh Z, Vue Z, Nunn ER, Bessho R, Cottam MA, Haase VH, Hinton AO, Spinelli JB, Cartailler JP, Zaganjor E. Disruption of nucleotide biosynthesis reprograms mitochondrial metabolism to inhibit adipogenesis. J Lipid Res 2024:100641. [PMID: 39245323 DOI: 10.1016/j.jlr.2024.100641] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2024] [Revised: 08/13/2024] [Accepted: 08/27/2024] [Indexed: 09/10/2024] Open
Abstract
A key organismal response to overnutrition involves the development of new adipocytes through the process of adipogenesis. Preadipocytes sense changes in the systemic nutrient status and metabolites can directly modulate adipogenesis. We previously identified a role of de novo nucleotide biosynthesis in adipogenesis induction, whereby inhibition of nucleotide biosynthesis suppresses the expression of the transcriptional regulators PPARγ and C/EBPα. Here, we set out to identify the global transcriptomic changes associated with the inhibition of nucleotide biosynthesis. Through RNA sequencing (RNAseq), we discovered that mitochondrial signatures were the most altered in response to inhibition of nucleotide biosynthesis. Blocking nucleotide biosynthesis induced rounded mitochondrial morphology, and altered mitochondrial function, and metabolism, reducing levels of tricarboxylic acid cycle intermediates, and increasing fatty acid oxidation (FAO). The loss of mitochondrial function induced by suppression of nucleotide biosynthesis was rescued by exogenous expression of PPARγ. Moreover, inhibition of FAO restored PPARγ expression, mitochondrial protein expression, and adipogenesis in the presence of nucleotide biosynthesis inhibition, suggesting a regulatory role of nutrient oxidation in differentiation. Collectively, our studies shed light on the link between substrate oxidation and transcription in cell fate determination.
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Affiliation(s)
- Julia A Pinette
- Department of Molecular Physiology and Biophysics, Vanderbilt University, Nashville, TN, USA
| | - Jacob W Myers
- Department of Molecular Physiology and Biophysics, Vanderbilt University, Nashville, TN, USA
| | - Woo Yong Park
- Department of Molecular Physiology and Biophysics, Vanderbilt University, Nashville, TN, USA
| | - Heather G Bryant
- Department of Molecular Physiology and Biophysics, Vanderbilt University, Nashville, TN, USA
| | - Alex M Eddie
- Department of Molecular Physiology and Biophysics, Vanderbilt University, Nashville, TN, USA
| | - Genesis A Wilson
- Department of Molecular Physiology and Biophysics, Vanderbilt University, Nashville, TN, USA
| | - Claudia Montufar
- Department of Molecular Physiology and Biophysics, Vanderbilt University, Nashville, TN, USA
| | - Zayedali Shaikh
- Department of Molecular Physiology and Biophysics, Vanderbilt University, Nashville, TN, USA
| | - Zer Vue
- Department of Molecular Physiology and Biophysics, Vanderbilt University, Nashville, TN, USA
| | - Elizabeth R Nunn
- Department of Molecular Physiology and Biophysics, Vanderbilt University, Nashville, TN, USA
| | - Ryoichi Bessho
- Division of Nephrology, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Matthew A Cottam
- Creative Data Solutions, Vanderbilt Center for Stem Cell Biology, Vanderbilt University, Nashville, TN, USA
| | - Volker H Haase
- Department of Molecular Physiology and Biophysics, Vanderbilt University, Nashville, TN, USA; Division of Nephrology, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, USA; Research and Medical Services, Department of Veterans Affairs, Tennessee Valley Healthcare System, Nashville, Tennessee, USA
| | - Antentor O Hinton
- Department of Molecular Physiology and Biophysics, Vanderbilt University, Nashville, TN, USA
| | - Jessica B Spinelli
- Program in Molecular Medicine, University of Massachusetts Chan Medical School, Worcester, MA, USA
| | - Jean-Philippe Cartailler
- Creative Data Solutions, Vanderbilt Center for Stem Cell Biology, Vanderbilt University, Nashville, TN, USA
| | - Elma Zaganjor
- Department of Molecular Physiology and Biophysics, Vanderbilt University, Nashville, TN, USA; Vanderbilt Digestive Disease Research Center, Vanderbilt University Medical Center, Nashville, TN, USA; Vanderbilt Diabetes Research Center, Vanderbilt University, Nashville, TN, USA.
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3
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Zhou J, Wang S, Shen L, Song Y, Cao Z, Li Y, Luan P, Li H, Bai X, Zhang H. CTGF Inhibits the Differentiation of Chicken Preadipocytes via the TGFβ/Smad3 Signaling Pathway or by Inducing the Expression of ACTG2. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:19413-19423. [PMID: 39178398 DOI: 10.1021/acs.jafc.4c04233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/25/2024]
Abstract
Chicken is the main source of protein for humans in most parts of the world. However, excessive fat deposition in chickens has become a serious problem. This adversely affects the growth of chickens and causes economic losses. Fat formation mainly occurs through preadipocyte differentiation, and excessive fat deposition results from the accumulation of preadipocytes after differentiation. Our previous studies have found that the connective tissue growth factor (CTGF) may be an important candidate gene for fat deposition. However, its function and mechanism in preadipocyte differentiation are still unclear. In this study, the RT-qPCR and Western blot results showed that the expression of CTGF mRNA and protein in the abdominal adipose of lean chickens was significantly higher than that of fat chickens. Therefore, we studied the function and mechanism of the CTGF in the differentiation of chicken preadipocytes. Functionally, the CTGF inhibited the differentiation of chicken preadipocytes. Mechanistically, the CTGF mediated the TGFβ1/Smad3 signaling pathway, thereby inhibiting the differentiation of chicken preadipocytes. In addition, we used the unique molecular identifier (UMI) RNA-Seq technology to detect genes that can be regulated by the CTGF in the whole genome. Through transcriptome data analysis, we selected actin gamma 2 (ACTG2) as a candidate gene. Regarding the function of the ACTG2 gene, we found that it inhibited the differentiation of chicken preadipocytes. Furthermore, we found that the CTGF can inhibit the differentiation of preadipocytes through the ACTG2 gene. In summary, this study found the CTGF as a new negative regulator of chicken preadipocyte differentiation. The results of this study help improve the understanding of the molecular genetic mechanism of chicken adipose tissue growth and development and also have reference significance for the study of human obesity.
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Affiliation(s)
- Jiamei Zhou
- College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, P. R. China
- Key Laboratory of Chicken Genetics and Breeding, Ministry of Agriculture and Rural Affairs, Harbin 150030, P. R. China
- Key Laboratory of Animal Genetics, Breeding and Reproduction, Education Department of Heilongjiang Province, Harbin 150030, P. R. China
| | - Shuping Wang
- College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, P. R. China
- Key Laboratory of Chicken Genetics and Breeding, Ministry of Agriculture and Rural Affairs, Harbin 150030, P. R. China
- Key Laboratory of Animal Genetics, Breeding and Reproduction, Education Department of Heilongjiang Province, Harbin 150030, P. R. China
| | - Linyong Shen
- College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, P. R. China
- Key Laboratory of Chicken Genetics and Breeding, Ministry of Agriculture and Rural Affairs, Harbin 150030, P. R. China
- Key Laboratory of Animal Genetics, Breeding and Reproduction, Education Department of Heilongjiang Province, Harbin 150030, P. R. China
| | - Yan Song
- College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, P. R. China
- Key Laboratory of Chicken Genetics and Breeding, Ministry of Agriculture and Rural Affairs, Harbin 150030, P. R. China
- Key Laboratory of Animal Genetics, Breeding and Reproduction, Education Department of Heilongjiang Province, Harbin 150030, P. R. China
| | - Zhiping Cao
- College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, P. R. China
- Key Laboratory of Chicken Genetics and Breeding, Ministry of Agriculture and Rural Affairs, Harbin 150030, P. R. China
- Key Laboratory of Animal Genetics, Breeding and Reproduction, Education Department of Heilongjiang Province, Harbin 150030, P. R. China
| | - Yumao Li
- College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, P. R. China
- Key Laboratory of Chicken Genetics and Breeding, Ministry of Agriculture and Rural Affairs, Harbin 150030, P. R. China
- Key Laboratory of Animal Genetics, Breeding and Reproduction, Education Department of Heilongjiang Province, Harbin 150030, P. R. China
| | - Peng Luan
- College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, P. R. China
- Key Laboratory of Chicken Genetics and Breeding, Ministry of Agriculture and Rural Affairs, Harbin 150030, P. R. China
- Key Laboratory of Animal Genetics, Breeding and Reproduction, Education Department of Heilongjiang Province, Harbin 150030, P. R. China
| | - Hui Li
- College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, P. R. China
- Key Laboratory of Chicken Genetics and Breeding, Ministry of Agriculture and Rural Affairs, Harbin 150030, P. R. China
- Key Laboratory of Animal Genetics, Breeding and Reproduction, Education Department of Heilongjiang Province, Harbin 150030, P. R. China
| | - Xue Bai
- College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, P. R. China
- Key Laboratory of Chicken Genetics and Breeding, Ministry of Agriculture and Rural Affairs, Harbin 150030, P. R. China
- Key Laboratory of Animal Genetics, Breeding and Reproduction, Education Department of Heilongjiang Province, Harbin 150030, P. R. China
| | - Hui Zhang
- College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, P. R. China
- Key Laboratory of Chicken Genetics and Breeding, Ministry of Agriculture and Rural Affairs, Harbin 150030, P. R. China
- Key Laboratory of Animal Genetics, Breeding and Reproduction, Education Department of Heilongjiang Province, Harbin 150030, P. R. China
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Zhao J, Chen A, Wang R, Qiu D, Chen H, Li J, Zhang J, Wang T, Wang Y, Lin Y, Zhou J, Du Y, Yuan H, Zhang Y, Miao D, Wang Y, Jin J. Bmi-1 Epigenetically Orchestrates Osteogenic and Adipogenic Differentiation of Bone Marrow Mesenchymal Stem Cells to Delay Bone Aging. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024:e2404518. [PMID: 39225325 DOI: 10.1002/advs.202404518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2024] [Revised: 08/05/2024] [Indexed: 09/04/2024]
Abstract
With the increase in the aging population, senile osteoporosis (SOP) has become a major global public health concern. Here, it is found that Prx1 and Bmi-1 co-localized in trabecular bone, bone marrow cavity, endosteum, and periosteum. Prx1-driven Bmi-1 knockout in bone-marrow mesenchymal stem cells (BMSCs) reduced bone mass and increased bone marrow adiposity by inhibiting osteoblastic bone formation, promoting osteoclastic bone resorption, downregulating the proliferation and osteogenic differentiation of BMSCs, and upregulating the adipogenic differentiation of BMSCs. However, Prx1-driven Bmi-1 overexpression showed a contrasting phenotype to Prx1-driven Bmi-1 knockout in BMSCs. Regarding mechanism, Bmi-1-RING1B bound to DNMT3A and promoted its ubiquitination and inhibited DNA methylation of Runx2 at the region from 45047012 to 45047313 bp, thus promoting the osteogenic differentiation of BMSCs. Moreover, Bmi-1-EZH2 repressed the transcription of Cebpa by promoting H3K27 trimethylation at the promoter region -1605 to -1596 bp, thus inhibiting the adipogenic differentiation of BMSCs. It is also found that Prx1-driven Bmi-1 overexpression rescued the SOP induced by Prx1-driven Bmi-1 knockout in BMSCs. Thus, Bmi-1 functioned as a hub protein in the epigenetic regulation of BMSCs differentiation to delay bone aging. The Prx1-driven Bmi-1 overexpression in BMSCs can be used as an approach for the translational therapy of SOP.
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Affiliation(s)
- Jingyu Zhao
- Department of Human Anatomy, Research Centre for Bone and Stem Cells, School of Basic Medical Sciences, Key Laboratory for Aging & Disease, School of Biomedical Engineering and Informatics, Nanjing Medical University, Nanjing, Jiangsu, 211166, China
| | - Ao Chen
- Department of Human Anatomy, Research Centre for Bone and Stem Cells, School of Basic Medical Sciences, Key Laboratory for Aging & Disease, School of Biomedical Engineering and Informatics, Nanjing Medical University, Nanjing, Jiangsu, 211166, China
| | - Rong Wang
- Department of Human Anatomy, Research Centre for Bone and Stem Cells, School of Basic Medical Sciences, Key Laboratory for Aging & Disease, School of Biomedical Engineering and Informatics, Nanjing Medical University, Nanjing, Jiangsu, 211166, China
| | - Dong Qiu
- Department of Oral and Maxillofacial Surgery, The Affiliated Stomatological Hospital of Nanjing Medical University, State Key Laboratory Cultivation Base of Research, Prevention and Treatment for Oral Diseases, Jiangsu Province Engineering Research Centre of Stomatological Translational Medicine, Nanjing Medical University, Nanjing, Jiangsu, 210029, China
| | - Haiyun Chen
- Department of Human Anatomy, Research Centre for Bone and Stem Cells, School of Basic Medical Sciences, Key Laboratory for Aging & Disease, School of Biomedical Engineering and Informatics, Nanjing Medical University, Nanjing, Jiangsu, 211166, China
| | - Jiyu Li
- Department of Human Anatomy, Research Centre for Bone and Stem Cells, School of Basic Medical Sciences, Key Laboratory for Aging & Disease, School of Biomedical Engineering and Informatics, Nanjing Medical University, Nanjing, Jiangsu, 211166, China
| | - Jin'ge Zhang
- Department of Human Anatomy, Research Centre for Bone and Stem Cells, School of Basic Medical Sciences, Key Laboratory for Aging & Disease, School of Biomedical Engineering and Informatics, Nanjing Medical University, Nanjing, Jiangsu, 211166, China
| | - Tianxiao Wang
- School of Pharmacy, Nanjing Medical University, Nanjing, Jiangsu, 211166, China
| | - Yue Wang
- Department of Human Anatomy, Research Centre for Bone and Stem Cells, School of Basic Medical Sciences, Key Laboratory for Aging & Disease, School of Biomedical Engineering and Informatics, Nanjing Medical University, Nanjing, Jiangsu, 211166, China
| | - Yujie Lin
- Department of Human Anatomy, Research Centre for Bone and Stem Cells, School of Basic Medical Sciences, Key Laboratory for Aging & Disease, School of Biomedical Engineering and Informatics, Nanjing Medical University, Nanjing, Jiangsu, 211166, China
| | - Jiawen Zhou
- Department of Human Anatomy, Research Centre for Bone and Stem Cells, School of Basic Medical Sciences, Key Laboratory for Aging & Disease, School of Biomedical Engineering and Informatics, Nanjing Medical University, Nanjing, Jiangsu, 211166, China
| | - Yifei Du
- Department of Oral and Maxillofacial Surgery, The Affiliated Stomatological Hospital of Nanjing Medical University, State Key Laboratory Cultivation Base of Research, Prevention and Treatment for Oral Diseases, Jiangsu Province Engineering Research Centre of Stomatological Translational Medicine, Nanjing Medical University, Nanjing, Jiangsu, 210029, China
| | - Hua Yuan
- Department of Oral and Maxillofacial Surgery, The Affiliated Stomatological Hospital of Nanjing Medical University, State Key Laboratory Cultivation Base of Research, Prevention and Treatment for Oral Diseases, Jiangsu Province Engineering Research Centre of Stomatological Translational Medicine, Nanjing Medical University, Nanjing, Jiangsu, 210029, China
| | - Yongjie Zhang
- Department of Human Anatomy, Research Centre for Bone and Stem Cells, School of Basic Medical Sciences, Key Laboratory for Aging & Disease, School of Biomedical Engineering and Informatics, Nanjing Medical University, Nanjing, Jiangsu, 211166, China
| | - Dengshun Miao
- Department of Human Anatomy, Research Centre for Bone and Stem Cells, School of Basic Medical Sciences, Key Laboratory for Aging & Disease, School of Biomedical Engineering and Informatics, Nanjing Medical University, Nanjing, Jiangsu, 211166, China
| | - Yuli Wang
- Department of Oral and Maxillofacial Surgery, The Affiliated Stomatological Hospital of Nanjing Medical University, State Key Laboratory Cultivation Base of Research, Prevention and Treatment for Oral Diseases, Jiangsu Province Engineering Research Centre of Stomatological Translational Medicine, Nanjing Medical University, Nanjing, Jiangsu, 210029, China
| | - Jianliang Jin
- Department of Human Anatomy, Research Centre for Bone and Stem Cells, School of Basic Medical Sciences, Key Laboratory for Aging & Disease, School of Biomedical Engineering and Informatics, Nanjing Medical University, Nanjing, Jiangsu, 211166, China
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5
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Geng W, Guo Y, Chen B, Cheng X, Li S, Challioui MK, Tian W, Li H, Zhang Y, Li Z, Jiang R, Tian Y, Kang X, Liu X. IGFBP7 promotes the proliferation and differentiation of primary myoblasts and intramuscular preadipocytes in chicken. Poult Sci 2024; 103:104258. [PMID: 39293261 PMCID: PMC11426050 DOI: 10.1016/j.psj.2024.104258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2024] [Revised: 07/21/2024] [Accepted: 08/20/2024] [Indexed: 09/20/2024] Open
Abstract
Though it is well known that insulin-like growth factor (IGF) binding protein 7 (IGFBP7) plays an important role in myogenesis and adipogenesis in mammals, its impact on the proliferation, differentiation, and lipid deposition in chicken primary myoblasts (CPM) and intramuscular preadipocytes remains unexplored. In the present study, we firstly examined the correlation between SNPs within the genomic sequence of the IGFBP7 gene and carcass and blood chemical traits in a F2 resource population by genetic association analysis, and found that a significant correlation between the SNP (4_49499525) located in the intron region of IGFBP7 and serum high-density lipoproteins (HDL). We then examined the expression patterns of IGFBP7 across different stages of proliferation and differentiation in CPMs and intramuscular preadipocytes via qPCR, and explored the biological functions of IGFBP7 through gain- and loss-of-function experiments and a range of techniques including qPCR, CCK-8, EdU, flow cytometry, Western blot, immunofluorescence, and Oil Red O staining to detect the proliferation, differentiation, and lipid deposition in CPMs and intramuscular preadipocytes. We ascertained that the expression levels of the IGFBP7 gene increased as cell differentiation progresses in CPMs and intramuscular preadipocytes, and that IGFBP7 promotes the proliferation and differentiation of these cells, as well as facilitates intracellular lipid deposition. Furthermore, we investigated the regulatory mechanism of IGFBP7 expression by using co-transfection strategy and dual-luciferase reporter assay, and discovered that the myogenic transcription factors (MRF), myoblast determination factor (MyoD) and myogenin (MyoG), along with the adipocyte-specific transcription factor (TF) CCAAT/enhancer-binding protein α (C/EBPα), can bind to the core transcription activation region of the IGFBP7 promoter located 500 bp upstream from the transcription start site, thereby promoting IGFBP7 transcription and expression. Taken together, our study underscores the role of IGFBP7 as a positive regulator for myogenesis and adipogenesis, while also elucidating the functional and transcriptional regulatory mechanisms of IGFBP7 in chicken skeletal muscle development and intramuscular adipogenesis.
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Affiliation(s)
- Wanzhuo Geng
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450046, China
| | - Yulong Guo
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450046, China
| | - Botong Chen
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450046, China
| | - Xi Cheng
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450046, China
| | - Shuohan Li
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450046, China
| | - Mohammed Kamal Challioui
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450046, China; Animal Production and Biotechnology Department, Institut Agronomique et Vétérinaire Hassan II, Rabat P.O. Box 6202, Rabat, Morocco
| | - Weihua Tian
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450046, China; Henan Key Laboratory for Innovation and Utilization of Chicken Germplasm Resources, Zhengzhou 450046, China; International Joint Research Laboratory for Poultry Breeding of Henan, Zhengzhou 450046, China
| | - Hong Li
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450046, China; Henan Key Laboratory for Innovation and Utilization of Chicken Germplasm Resources, Zhengzhou 450046, China; International Joint Research Laboratory for Poultry Breeding of Henan, Zhengzhou 450046, China
| | - Yanhua Zhang
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450046, China; Henan Key Laboratory for Innovation and Utilization of Chicken Germplasm Resources, Zhengzhou 450046, China; International Joint Research Laboratory for Poultry Breeding of Henan, Zhengzhou 450046, China
| | - Zhuanjian Li
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450046, China; Henan Key Laboratory for Innovation and Utilization of Chicken Germplasm Resources, Zhengzhou 450046, China; International Joint Research Laboratory for Poultry Breeding of Henan, Zhengzhou 450046, China
| | - Ruirui Jiang
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450046, China; Henan Key Laboratory for Innovation and Utilization of Chicken Germplasm Resources, Zhengzhou 450046, China; International Joint Research Laboratory for Poultry Breeding of Henan, Zhengzhou 450046, China
| | - Yadong Tian
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450046, China; Henan Key Laboratory for Innovation and Utilization of Chicken Germplasm Resources, Zhengzhou 450046, China; International Joint Research Laboratory for Poultry Breeding of Henan, Zhengzhou 450046, China
| | - Xiangtao Kang
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450046, China; Henan Key Laboratory for Innovation and Utilization of Chicken Germplasm Resources, Zhengzhou 450046, China; International Joint Research Laboratory for Poultry Breeding of Henan, Zhengzhou 450046, China
| | - Xiaojun Liu
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450046, China; Henan Key Laboratory for Innovation and Utilization of Chicken Germplasm Resources, Zhengzhou 450046, China; International Joint Research Laboratory for Poultry Breeding of Henan, Zhengzhou 450046, China.
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6
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Weijie Z, Meng Z, Chunxiao W, Lingjie M, Anguo Z, Yan Z, Xinran C, Yanjiao X, Li S. Obesity-induced chronic low-grade inflammation in adipose tissue: A pathway to Alzheimer's disease. Ageing Res Rev 2024; 99:102402. [PMID: 38977081 DOI: 10.1016/j.arr.2024.102402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2024] [Revised: 06/19/2024] [Accepted: 06/30/2024] [Indexed: 07/10/2024]
Abstract
Alzheimer's disease (AD) is a leading cause of cognitive impairment worldwide. Overweight and obesity are strongly associated with comorbidities, such as hypertension, diabetes, and insulin resistance (IR), which contribute substantially to the development of AD and subsequent morbidity and mortality. Adipose tissue (AT) is a highly dynamic organ composed of a diverse array of cell types, which can be classified based on their anatomic localization or cellular composition. The expansion and remodeling of AT in the context of obesity involves immunometabolic and functional shifts steered by the intertwined actions of multiple immune cells and cytokine signaling within AT, which contribute to the development of metabolic disorders, IR, and systemic markers of chronic low-grade inflammation. Chronic low-grade inflammation, a prolonged, low-dose stimulation by specific immunogens that can progress from localized sites and affect multiple organs throughout the body, leads to neurodystrophy, increased apoptosis, and disruption of homeostasis, manifesting as brain atrophy and AD-related pathology. In this review, we sought to elucidate the mechanisms by which AT contributes to the onset and progression of AD in obesity through the mediation of chronic low-grade inflammation, particularly focusing on the roles of adipokines and AT-resident immune cells.
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Affiliation(s)
- Zhai Weijie
- Department of Neurology and Neuroscience Center, The First Hospital of Jilin University, Jilin University, Changchun, China; Cognitive Center, Department of Neurology, The First Hospital of Jilin University, Jilin University, Changchun, China
| | - Zhao Meng
- Department of Neurology and Neuroscience Center, The First Hospital of Jilin University, Jilin University, Changchun, China; Cognitive Center, Department of Neurology, The First Hospital of Jilin University, Jilin University, Changchun, China
| | - Wei Chunxiao
- Department of Neurology and Neuroscience Center, The First Hospital of Jilin University, Jilin University, Changchun, China; Cognitive Center, Department of Neurology, The First Hospital of Jilin University, Jilin University, Changchun, China
| | - Meng Lingjie
- Department of Neurology and Neuroscience Center, The First Hospital of Jilin University, Jilin University, Changchun, China; Cognitive Center, Department of Neurology, The First Hospital of Jilin University, Jilin University, Changchun, China
| | - Zhao Anguo
- Department of Urology, Dushu Lake Hospital Affiliated to Soochow University, Medical Center of Soochow University, Suzhou Dushu Lake Hospital, Suzhou 215000 China
| | - Zhang Yan
- Department of Neurology and Neuroscience Center, The First Hospital of Jilin University, Jilin University, Changchun, China; Cognitive Center, Department of Neurology, The First Hospital of Jilin University, Jilin University, Changchun, China
| | - Cui Xinran
- Department of Neurology and Neuroscience Center, The First Hospital of Jilin University, Jilin University, Changchun, China; Cognitive Center, Department of Neurology, The First Hospital of Jilin University, Jilin University, Changchun, China
| | - Xu Yanjiao
- Department of Neurology and Neuroscience Center, The First Hospital of Jilin University, Jilin University, Changchun, China; Cognitive Center, Department of Neurology, The First Hospital of Jilin University, Jilin University, Changchun, China
| | - Sun Li
- Department of Neurology and Neuroscience Center, The First Hospital of Jilin University, Jilin University, Changchun, China; Cognitive Center, Department of Neurology, The First Hospital of Jilin University, Jilin University, Changchun, China.
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7
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Zhang L, Zhao J, Peng Z, Zhang Z, Huang S, Dong X, Gao J, Guo X. Anti-adipogenesis effect of indole-3-acrylic acid on human preadipocytes and HFD-induced zebrafish. Acta Diabetol 2024; 61:975-985. [PMID: 38598139 DOI: 10.1007/s00592-024-02256-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Accepted: 02/07/2024] [Indexed: 04/11/2024]
Abstract
BACKGROUND Obesity, defined as excessive or abnormal body fat accumulation, which could significantly increase the risk of cardiovascular disease, type 2 diabetes mellitus (T2DM) diseases and seriously affect people's quality of life. More than 2 billion people are overweight, and the incidence of obesity is increasing rapidly worldwide, it has become a widely concerned public health issue in the world. Diverse evidence show that active metabolites are involved in the pathophysiological processes of obesity. AIMS However, whether the downstream catabolite of tryptophan, 3-indole acrylic acid (IA), is involved in obesity remains unclear. METHODS We collected the samples of serum from peripheral blood of obesity and health controls, and liquid chromatography-mass spectrometry (LC-MS) was performed to identify the plasma levels of IA. Additionally, we verified the potential benefits of IA on human preadipocytes and HFD- induced zebrafish by cell viability assay, flow cytometry assay, Oil red O staining, total cholesterol (T-CHO), triglyceride (TG) and nonesterified free fatty acids (NEFA) measurements and Nile Red staining. RNA-Seq, functional analysis and western blot revealed the mechanisms underlying the function of IA. RESULTS We found that the content of IA in peripheral blood serum of overweight people was significantly lower than that of normal people. In addition, supplementation with IA in zebrafish larvae induced by a high fat diet (HFD) dramatically reduced HFD induced lipid accumulation. IA had no effect on proliferation and apoptosis of preadipocytes, but significantly inhibited adipogenesis of preadipocytes by down-regulate CEBPα and PPARγ. RNA-Seq and functional analysis revealed that IA regulated the adipogenesis of preadipocytes through stimulate the phosphorylation of STAT1. CONCLUSIONS Taken together, IA has been identified as a potent metabolite for the prevention or treatment of obesity.
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Affiliation(s)
- Ling Zhang
- Hongqiao International Institute of Medicine, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, 1111 XianXia Road, Shanghai, 200336, People's Republic of China
| | - Jing Zhao
- Hongqiao International Institute of Medicine, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, 1111 XianXia Road, Shanghai, 200336, People's Republic of China
| | - Zhou Peng
- Hongqiao International Institute of Medicine, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, 1111 XianXia Road, Shanghai, 200336, People's Republic of China
| | - Zhongxiao Zhang
- Hongqiao International Institute of Medicine, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, 1111 XianXia Road, Shanghai, 200336, People's Republic of China
| | - Shan Huang
- Endocrinology Department, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China
| | - Xiaohua Dong
- Hongqiao International Institute of Medicine, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, 1111 XianXia Road, Shanghai, 200336, People's Republic of China
| | - Jianfang Gao
- Hongqiao International Institute of Medicine, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, 1111 XianXia Road, Shanghai, 200336, People's Republic of China.
| | - Xirong Guo
- Hongqiao International Institute of Medicine, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, 1111 XianXia Road, Shanghai, 200336, People's Republic of China.
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8
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Wu Y, Sun Y, Song Y, Wang J, Han Y, Yang N, Lin H, Yin Y, Han X. PPA1 promotes adipogenesis by regulating the stability of C/EBPs. Cell Death Differ 2024; 31:1044-1056. [PMID: 38762596 PMCID: PMC11303681 DOI: 10.1038/s41418-024-01309-2] [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: 08/03/2023] [Revised: 04/24/2024] [Accepted: 05/01/2024] [Indexed: 05/20/2024] Open
Abstract
Adipogenesis significantly contributes to healthy adipose tissue expansion in obesity. Increasing adipocyte number or function to alleviate adipose tissue overload could serve as a therapeutic strategy for both lipodystrophy and obesity-related metabolic syndrome. Inorganic pyrophosphatase (PPA1) is an enzyme that catalyzes the hydrolysis of pyrophosphate (PPi) and is involved in many biochemical reactions, but its function in adipose tissue has not been studied previously. In this study, we demonstrated that adipose-specific PPA1 knockout (PPA1AKO) mice showed lipodystrophy and spontaneously developed hepatic steatosis and severe insulin resistance under normal chow diet feeding. PPA1 deficiency suppressed the differentiation of primary adipocyte precursors and 3T3-L1 cells. Notably, PPA1 overexpression can restore inhibited adipogenesis in preadipocytes isolated from db/db mice and type 2 diabetes patients. Mechanistic studies have revealed that PPA1 acts as a positive regulator of early adipocyte differentiation by promoting CCAAT/enhancer-binding proteinβ and δ (C/EBPβ and δ) protein stability. Moreover, the function of PPA1 in adipogenesis is independent of its PPi catalytic activity. Collectively, our in vivo and in vitro findings demonstrated that PPA1 is a novel critical upstream regulator of adipogenesis, controlling adipose tissue development and whole-body metabolic homeostasis.
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Affiliation(s)
- Yangyang Wu
- Key Laboratory of Human Functional Genomics of Jiangsu Province, Department of Biochemistry and Molecular Biology, Nanjing Medical University, Nanjing, Jiangsu, China
- Women's Hospital of Nanjing Medical University, Nanjing Women and Children's Healthcare Hospital, Nanjing Medical University, Nanjing, China
| | - Yue Sun
- Department of Cardiology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Yuqing Song
- Key Laboratory of Human Functional Genomics of Jiangsu Province, Department of Biochemistry and Molecular Biology, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Jiateng Wang
- Key Laboratory of Human Functional Genomics of Jiangsu Province, Department of Biochemistry and Molecular Biology, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Ye Han
- Key Laboratory of Human Functional Genomics of Jiangsu Province, Department of Biochemistry and Molecular Biology, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Nan Yang
- Key Laboratory of Human Functional Genomics of Jiangsu Province, Department of Biochemistry and Molecular Biology, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Haiyan Lin
- Key Laboratory of Human Functional Genomics of Jiangsu Province, Department of Biochemistry and Molecular Biology, Nanjing Medical University, Nanjing, Jiangsu, China.
| | - Ye Yin
- Key Laboratory of Human Functional Genomics of Jiangsu Province, Department of Biochemistry and Molecular Biology, Nanjing Medical University, Nanjing, Jiangsu, China.
| | - Xiao Han
- Key Laboratory of Human Functional Genomics of Jiangsu Province, Department of Biochemistry and Molecular Biology, Nanjing Medical University, Nanjing, Jiangsu, China.
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9
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Cai Q, Yang J, Shen H, Xu W. Cancer-associated adipocytes in the ovarian cancer microenvironment. Am J Cancer Res 2024; 14:3259-3279. [PMID: 39113876 PMCID: PMC11301307 DOI: 10.62347/xzri9189] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2024] [Accepted: 07/02/2024] [Indexed: 08/10/2024] Open
Abstract
The tumor microenvironment (TME) plays a critical role in high energy metabolism during tumorigenesis, progression and metastasis. Among them, adipocytes, as an important component of the TME, can transform into cancer-associated adipocytes (CAAs) through dedifferentiation via interactions with tumor cells. These CAAs provide nutrients, growth factors, cytokines and metabolites to the tumor and later transdifferentiate into other stromal cells at a later stage to alter tumor growth, metastasis and the drug response and ultimately influence the treatment and prognosis of ovarian cancer. This review outlines the physiological functions of CAAs and discusses the progress in the use of CAAs as therapeutic targets in ovarian cancer.
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Affiliation(s)
- Qiuling Cai
- Department of Central Laboratory, The Fourth Affiliated Hospital of Jiangsu UniversityZhenjiang, Jiangsu, China
| | - Jing Yang
- Department of Central Laboratory, The Fourth Affiliated Hospital of Jiangsu UniversityZhenjiang, Jiangsu, China
| | - Huiling Shen
- Department of Oncology, The First Affiliated People’s Hospital of Jiangsu UniversityZhenjiang, Jiangsu, China
| | - Wenlin Xu
- Department of Central Laboratory, The Fourth Affiliated Hospital of Jiangsu UniversityZhenjiang, Jiangsu, China
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10
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Yadav B, Singh D, Mantri S, Rishi V. Genome-wide Methylation Dynamics and Context-dependent Gene Expression Variability in Differentiating Preadipocytes. J Endocr Soc 2024; 8:bvae121. [PMID: 38966711 PMCID: PMC11222978 DOI: 10.1210/jendso/bvae121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/09/2024] [Indexed: 07/06/2024] Open
Abstract
Obesity, characterized by the accumulation of excess fat, is a complex condition resulting from the combination of genetic and epigenetic factors. Recent studies have found correspondence between DNA methylation and cell differentiation, suggesting a role of the former in cell fate determination. There is a lack of comprehensive understanding concerning the underpinnings of preadipocyte differentiation, specifically when cells are undergoing terminal differentiation (TD). To gain insight into dynamic genome-wide methylation, 3T3 L1 preadipocyte cells were differentiated by a hormone cocktail. The genomic DNA was isolated from undifferentiated cells and 4 hours, 2 days postdifferentiated cells, and 15 days TD cells. We employed whole-genome bisulfite sequencing (WGBS) to ascertain global genomic DNA methylation alterations at single base resolution as preadipocyte cells differentiate. The genome-wide distribution of DNA methylation showed similar overall patterns in pre-, post-, and terminally differentiated adipocytes, according to WGBS analysis. DNA methylation decreases at 4 hours after differentiation initiation, followed by methylation gain as cells approach TD. Studies revealed novel differentially methylated regions (DMRs) associated with adipogenesis. DMR analysis suggested that though DNA methylation is global, noticeable changes are observed at specific sites known as "hotspots." Hotspots are genomic regions rich in transcription factor (TF) binding sites and exhibit methylation-dependent TF binding. Subsequent analysis indicated hotspots as part of DMRs. The gene expression profile of key adipogenic genes in differentiating adipocytes is context-dependent, as we found a direct and inverse relationship between promoter DNA methylation and gene expression.
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Affiliation(s)
- Binduma Yadav
- Nutritional Biotechnology, National Agri-Food Biotechnology Institute, Mohali, Punjab 140306, India
- Regional Center for Biotechnology, Faridabad, Haryana 160014, India
| | - Dalwinder Singh
- Nutritional Biotechnology, National Agri-Food Biotechnology Institute, Mohali, Punjab 140306, India
- Department of Anatomy and Cell Biology, Western University, London, Ontario N6A 5C1, Canada
| | - Shrikant Mantri
- Nutritional Biotechnology, National Agri-Food Biotechnology Institute, Mohali, Punjab 140306, India
| | - Vikas Rishi
- Nutritional Biotechnology, National Agri-Food Biotechnology Institute, Mohali, Punjab 140306, India
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11
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Yang S, Sun Y, Yan C. Recent advances in the use of extracellular vesicles from adipose-derived stem cells for regenerative medical therapeutics. J Nanobiotechnology 2024; 22:316. [PMID: 38844939 PMCID: PMC11157933 DOI: 10.1186/s12951-024-02603-4] [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: 03/21/2024] [Accepted: 05/28/2024] [Indexed: 06/09/2024] Open
Abstract
Adipose-derived stem cells (ADSCs) are a subset of mesenchymal stem cells (MSCs) isolated from adipose tissue. They possess remarkable properties, including multipotency, self-renewal, and easy clinical availability. ADSCs are also capable of promoting tissue regeneration through the secretion of various cytokines, factors, and extracellular vesicles (EVs). ADSC-derived EVs (ADSC-EVs) act as intercellular signaling mediators that encapsulate a range of biomolecules. These EVs have been found to mediate the therapeutic activities of donor cells by promoting the proliferation and migration of effector cells, facilitating angiogenesis, modulating immunity, and performing other specific functions in different tissues. Compared to the donor cells themselves, ADSC-EVs offer advantages such as fewer safety concerns and more convenient transportation and storage for clinical application. As a result, these EVs have received significant attention as cell-free therapeutic agents with potential future application in regenerative medicine. In this review, we focus on recent research progress regarding regenerative medical use of ADSC-EVs across various medical conditions, including wound healing, chronic limb ischemia, angiogenesis, myocardial infarction, diabetic nephropathy, fat graft survival, bone regeneration, cartilage regeneration, tendinopathy and tendon healing, peripheral nerve regeneration, and acute lung injury, among others. We also discuss the underlying mechanisms responsible for inducing these therapeutic effects. We believe that deciphering the biological properties, therapeutic effects, and underlying mechanisms associated with ADSC-EVs will provide a foundation for developing a novel therapeutic approach in regenerative medicine.
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Affiliation(s)
- Song Yang
- Institute of Life Sciences, Chongqing Medical University, Chongqing, 400016, People's Republic of China.
| | - Yiran Sun
- School of Pharmacy, Chengdu Medical College, Chengdu, 610500, People's Republic of China.
| | - Chenchen Yan
- School of Pharmacy, Chengdu Medical College, Chengdu, 610500, People's Republic of China
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12
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Mallah A, Stojkova K, Cohen RN, Abu-Lail N, Brey EM, Gonzalez Porras MA. Atomic force microscopy characterization of white and beige adipocyte differentiation. In Vitro Cell Dev Biol Anim 2024:10.1007/s11626-024-00925-z. [PMID: 38831186 DOI: 10.1007/s11626-024-00925-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Accepted: 04/19/2024] [Indexed: 06/05/2024]
Abstract
Adipose tissue plays an essential role in systemic metabolism with white adipose tissue (WAT) making up most of the tissue and being involved in the regulation of energy homeostasis, and brown and beige adipose tissue (BAT) exhibiting thermogenic activity. There is promise in the conversion of white adipocytes into beige ones as a therapeutic potential to control and enhance systemic metabolism, but it is difficult to maintain this transformation in vivo because we do not fully understand the mechanism of conversion. In this study, we applied atomic force microscopy (AFM) to characterize beige or white adipocytes during the process of differentiation for morphology, roughness, adhesion, and elasticity at different time points. As cells differentiated to white and beige adipocytes, they exhibited morphological changes as they lipid loaded, transitioning from flattened elongated cells to a rounded shape indicating adipogenesis. While there was an initial decrease in elasticity for both beige and white adipocytes, white adipocytes exhibited a higher elasticity than beige adipocytes at all time points. Beige and white adipogenesis exhibited a decrease in adhesion energy compared to preadipocytes, yet at day 12, white adipocytes had a significant increase in adhesion energy compared to beige adipocytes. This work shows significant differences in the mechanical properties of white vs. beige adipocytes during differentiation. Results from this study contribute to a better understanding of the differentiation of adipocytes which are vital to the therapeutic induction, engineered models, and maintenance of beige adipocytes as a potential approach for enhancing systemic metabolism.
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Affiliation(s)
- Alia Mallah
- Department of Biomedical Engineering and Chemical Engineering, University of Texas at San Antonio, AET 1.3681 UTSA Circle, San Antonio, TX, 78249, USA
- Institute of Regenerative Medicine, University of Texas at San Antonio, San Antonio, TX, USA
| | - Katerina Stojkova
- Department of Biomedical Engineering and Chemical Engineering, University of Texas at San Antonio, AET 1.3681 UTSA Circle, San Antonio, TX, 78249, USA
- Institute of Regenerative Medicine, University of Texas at San Antonio, San Antonio, TX, USA
| | - Ronald N Cohen
- Section of Endocrinology, Diabetes, and Metabolism, Department of Medicine, University of Chicago, Chicago, IL, USA
| | - Nehal Abu-Lail
- Department of Biomedical Engineering and Chemical Engineering, University of Texas at San Antonio, AET 1.3681 UTSA Circle, San Antonio, TX, 78249, USA
- Institute of Regenerative Medicine, University of Texas at San Antonio, San Antonio, TX, USA
| | - Eric M Brey
- Department of Biomedical Engineering and Chemical Engineering, University of Texas at San Antonio, AET 1.3681 UTSA Circle, San Antonio, TX, 78249, USA
- Institute of Regenerative Medicine, University of Texas at San Antonio, San Antonio, TX, USA
| | - Maria A Gonzalez Porras
- Department of Biomedical Engineering and Chemical Engineering, University of Texas at San Antonio, AET 1.3681 UTSA Circle, San Antonio, TX, 78249, USA.
- Institute of Regenerative Medicine, University of Texas at San Antonio, San Antonio, TX, USA.
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13
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Zhao T, Tian T, Yu H, Cao C, Zhang Z, He Z, Ma Z, Cai R, Li F, Pang W. Identification of porcine fast/slow myogenic exosomes and their regulatory effects on lipid accumulation in intramuscular adipocytes. J Anim Sci Biotechnol 2024; 15:73. [PMID: 38824596 PMCID: PMC11144342 DOI: 10.1186/s40104-024-01029-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Accepted: 04/01/2024] [Indexed: 06/03/2024] Open
Abstract
BACKGROUND Pork quality is affected by the type of muscle fibers, which is closely related to meat color, tenderness and juiciness. Exosomes are tiny vesicles with a diameter of approximately 30-150 nm that are secreted by cells and taken up by recipient cells to mediate communication. Exosome-mediated muscle-fat tissue crosstalk is a newly discovered mechanism that may have an important effect on intramuscular fat deposition and with that on meat quality. Various of adipose tissue-derived exosomes have been discovered and identified, but the identification and function of muscle exosomes, especially porcine fast/slow myotube exosomes, remain unclear. Here, we first isolated and identified exosomes secreted from porcine extensor digitorum longus (EDL) and soleus (SOL), which represent fast and slow muscle, respectively, and further explored their effects on lipid accumulation in longissimus dorsi adipocytes. RESULTS Porcine SOL-derived exosomes (SOL-EXO) and EDL-derived exosomes (EDL-EXO) were first identified and their average particle sizes were approximately 84 nm with double-membrane disc- shapes as observed via transmission electron microscopy and scanning electron microscopy. Moreover, the intramuscular fat content of the SOL was greater than that of the EDL at 180 days of age, because SOL intramuscular adipocytes had a stronger lipid-accumulating capacity than those of the EDL. Raman spectral analysis revealed that SOL-EXO protein content was much greater than that of EDL-EXO. Proteomic sequencing identified 72 proteins that were significantly differentially expressed between SOL-EXO and EDL-EXO, 31 of which were downregulated and 41 of which were upregulated in SOL-EXO. CONCLUSIONS Our findings suggest that muscle-fat tissue interactions occur partly via SOL-EXO promoting adipogenic activity of intramuscular adipocytes.
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Affiliation(s)
- Tiantian Zhao
- Laboratory of Animal Fat Deposition & Muscle Development, College of Animal Science and Technology, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Tingting Tian
- Laboratory of Animal Fat Deposition & Muscle Development, College of Animal Science and Technology, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - He Yu
- Laboratory of Animal Fat Deposition & Muscle Development, College of Animal Science and Technology, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Chaoyue Cao
- Laboratory of Animal Fat Deposition & Muscle Development, College of Animal Science and Technology, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Ziyi Zhang
- Laboratory of Animal Fat Deposition & Muscle Development, College of Animal Science and Technology, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Zhaozhao He
- Laboratory of Animal Fat Deposition & Muscle Development, College of Animal Science and Technology, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Zeqiang Ma
- Laboratory of Animal Fat Deposition & Muscle Development, College of Animal Science and Technology, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Rui Cai
- Laboratory of Animal Fat Deposition & Muscle Development, College of Animal Science and Technology, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Fengna Li
- Laboratory of Animal Nutritional Physiology and Metabolic Process, Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, 410125, Hunan, China
| | - Weijun Pang
- Laboratory of Animal Fat Deposition & Muscle Development, College of Animal Science and Technology, Northwest A&F University, Yangling, 712100, Shaanxi, China.
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14
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Lee HW, Karki R, Han JH. Inhibition of the RPS6KA1/FoxO1 signaling axis by hydroxycitric acid attenuates HFD-induced obesity through MCE suppression. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2024; 128:155551. [PMID: 38569293 DOI: 10.1016/j.phymed.2024.155551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2023] [Revised: 10/02/2023] [Accepted: 03/19/2024] [Indexed: 04/05/2024]
Abstract
BACKGROUND Because obesity is associated with a hyperplasia-mediated increase in adipose tissue, inhibiting cell proliferation during mitotic clonal expansion (MCE) is a leading strategy for preventing obesity. Although (-)-hydroxycitric acid (HCA) is used to control obesity, the molecular mechanisms underlying its effects on MCE are poorly understood. PURPOSE This study aimed to investigate the potential effects of HCA on MCE and underlying molecular mechanisms affecting adipogenesis and obesity improvements. METHODS Preadipocyte cell line, 3T3-L1, were treated with HCA; oil red O, cell proliferation, cell cycle, and related alterations in signaling pathways were examined. High-fat diet (HFD)-fed mice were administered HCA for 12 weeks; body and adipose tissues weights were evaluated, and the regulation of signaling pathways in epidydimal white adipose tissue were examined in vivo. RESULTS Here, we report that during MCE, HCA attenuates the proliferation of the preadipocyte cell line, 3T3-L1, by arresting the cell cycle at the G0/G1 phase. In addition, HCA markedly inhibits Forkhead Box O1 (FoxO1) phosphorylation, thereby inducing the expression of cyclin-dependent kinase inhibitor 1B and suppressing the levels of cyclin-dependent kinase 2, cyclin E1, proliferating cell nuclear antigen, and phosphorylated retinoblastoma. Importantly, we found that ribosomal protein S6 kinase A1 (RPS6KA1) influences HCA-mediated inactivation of FoxO1 and its nuclear exclusion. An animal model of obesity revealed that HCA reduced high-fat diet-induced obesity by suppressing adipocyte numbers as well as epididymal and mesenteric white adipose tissue mass, which is attributed to the regulation of RPS6KA1, FoxO1, CDKN1B and PCNA that had been consistently identified in vitro. CONCLUSIONS These findings provide novel insights into the mechanism by which HCA regulates adipogenesis and highlight the RPS6KA1/FoxO1 signaling axis as a therapeutic target for obesity.
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Affiliation(s)
- Hyung-Won Lee
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Woosuk University, Wanju 55338, Republic of Korea
| | - Rajendra Karki
- Department of Biological Sciences, College of Natural Science, Seoul National University, Seoul 08826, South Korea; Nexus Institute of Research and Innovation (NIRI), Kathmandu, Nepal
| | - Joo-Hui Han
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Woosuk University, Wanju 55338, Republic of Korea.
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15
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Chang YH, Tseng YH, Wang JM, Tsai YS, Huang HS. TG-interacting factor 1 regulates mitotic clonal expansion during adipocyte differentiation. Biochim Biophys Acta Mol Cell Biol Lipids 2024; 1869:159492. [PMID: 38575107 DOI: 10.1016/j.bbalip.2024.159492] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Revised: 03/01/2024] [Accepted: 03/28/2024] [Indexed: 04/06/2024]
Abstract
Obesity is one of the significant health challenges in the world and is highly associated with abnormal adipogenesis. TG-interacting factor 1 (TGIF1) is essential for differentiating murine adipocytes and human adipose tissue-derived stem cells. However, the mode of action needs to be better elucidated. To investigate the roles of TGIF1 in differentiation in-depth, CRISPR/Cas9 knockout technology was performed to generate TGIF1-silenced preadipocytes. The absence of TGIF1 in 3 T3-F442A preadipocytes abolished lipid accumulation throughout the differentiation using Oil Red O staining. Conversely, we established 3 T3-F442A preadipocytes stably expressing TGIF1 and doxycycline-inducible TGIF1 in TGIF1-silenced 3 T3-F442A preadipocytes. Remarkably, the induction of TGIF1 by doxycycline during the initial differentiation phase successfully promoted lipid accumulation in TGIF1-silenced 3 T3-F442A cells. We further explored the mechanisms of TGIF1 in early differentiation. We demonstrated that TGIF1 promoted the mitotic clonal expansion via upregulation of CCAAT/enhancer-binding proteins β expression, interruption with peroxisome proliferators activated receptor γ downstream regulation, and inhibition of p27kip1 expression. In conclusion, we strengthen the pivotal roles of TGIF1 in early differentiation, which might contribute to resolving obesity-associated metabolic syndromes.
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Affiliation(s)
- Yu-Hao Chang
- Department of Medical Laboratory Science and Biotechnology, College of Medicine, National Cheng Kung University, Tainan, Taiwan; Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Yu-Hua Tseng
- Section on Integrative Physiology and Metabolism, Research Division, Joslin Diabetes Center, Harvard Medical School, Boston, MA, USA.
| | - Ju-Ming Wang
- Department of Biotechnology and Bioindustry Sciences, College of Bioscience and Biotechnology, National Cheng Kung University, Tainan, Taiwan.
| | - Yau-Sheng Tsai
- Institute of Clinical Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Huei-Sheng Huang
- Department of Medical Laboratory Science and Biotechnology, College of Medicine, National Cheng Kung University, Tainan, Taiwan.
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16
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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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17
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Guo F, Li J, Chen Z, Wang T, Wang R, Wang T, Bian Y, Du Y, Yuan H, Pan Y, Jin J, Jiang H, Han F, Jiang J, Wu F, Wang Y. An Injectable Black Phosphorus Hydrogel for Rapid Tooth Extraction Socket Healing. ACS APPLIED MATERIALS & INTERFACES 2024; 16:25799-25812. [PMID: 38727024 DOI: 10.1021/acsami.4c03278] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2024]
Abstract
The excess production of reactive oxygen species (ROS) will delay tooth extraction socket (TES) healing. In this study, we developed an injectable thermosensitive hydrogel (NBP@BP@CS) used to treat TES healing. The hydrogel formulation incorporated black phosphorus (BP) nanoflakes, recognized for their accelerated alveolar bone regeneration and ROS-scavenging properties, and dl-3-n-butylphthalide (NBP), a vasodilator aimed at enhancing angiogenesis. In vivo investigations strongly demonstrated that NBP@BP@CS improved TES healing due to antioxidation and promotion of alveolar bone regeneration by BP nanoflakes. The sustained release of NBP from the hydrogel promoted neovascularization and vascular remodeling. Our results demonstrated that the designed thermosensitive hydrogel provided great opportunity not only for ROS elimination but also for the promotion of osteogenesis and angiogenesis, reflecting the "three birds with one stone" concept, and has tremendous potential for rapid TES healing.
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Affiliation(s)
- Fanyi Guo
- Department of Oral and Maxillofacial Surgery, The Affiliated Stomatological Hospital of Nanjing Medical University, Jiangsu Province Key Laboratory of Oral Diseases, Jiangsu Province Engineering Research Centre of Stomatological Translational Medicine, Nanjing Medical University, Nanjing 210029, Jiangsu, China
| | - Jianfeng Li
- Department of Oral and Maxillofacial Surgery, The Affiliated Stomatological Hospital of Nanjing Medical University, Jiangsu Province Key Laboratory of Oral Diseases, Jiangsu Province Engineering Research Centre of Stomatological Translational Medicine, Nanjing Medical University, Nanjing 210029, Jiangsu, China
| | - Ziyu Chen
- Medical Basic Research Innovation Center for Cardiovascular and Cerebrovascular Diseases, Ministry of Education, International Joint Laboratory for Drug Target of Critical Illnesses, School of Pharmacy, Nanjing Medical University, Nanjing 211166, China
| | - Tianxiao Wang
- Medical Basic Research Innovation Center for Cardiovascular and Cerebrovascular Diseases, Ministry of Education, International Joint Laboratory for Drug Target of Critical Illnesses, School of Pharmacy, Nanjing Medical University, Nanjing 211166, China
| | - Ruyu Wang
- Department of Oral and Maxillofacial Surgery, The Affiliated Stomatological Hospital of Nanjing Medical University, Jiangsu Province Key Laboratory of Oral Diseases, Jiangsu Province Engineering Research Centre of Stomatological Translational Medicine, Nanjing Medical University, Nanjing 210029, Jiangsu, China
| | - Tianyao Wang
- Department of Periodontology, The Affiliated Stomatological Hospital of Nanjing Medical University, Jiangsu Province Key Laboratory of Oral Diseases, Jiangsu Province Engineering Research Centre of Stomatological Translational Medicine, Nanjing Medical University, Nanjing 210029, Jiangsu, China
| | - Yifeng Bian
- Department of Oral and Maxillofacial Surgery, The Affiliated Stomatological Hospital of Nanjing Medical University, Jiangsu Province Key Laboratory of Oral Diseases, Jiangsu Province Engineering Research Centre of Stomatological Translational Medicine, Nanjing Medical University, Nanjing 210029, Jiangsu, China
| | - Yifei Du
- Department of Oral and Maxillofacial Surgery, The Affiliated Stomatological Hospital of Nanjing Medical University, Jiangsu Province Key Laboratory of Oral Diseases, Jiangsu Province Engineering Research Centre of Stomatological Translational Medicine, Nanjing Medical University, Nanjing 210029, Jiangsu, China
| | - Hua Yuan
- Department of Oral and Maxillofacial Surgery, The Affiliated Stomatological Hospital of Nanjing Medical University, Jiangsu Province Key Laboratory of Oral Diseases, Jiangsu Province Engineering Research Centre of Stomatological Translational Medicine, Nanjing Medical University, Nanjing 210029, Jiangsu, China
| | - Yongchu Pan
- Department of Orthodontic, The Affiliated Stomatological Hospital of Nanjing Medical University, Jiangsu Province Key Laboratory of Oral Diseases, Jiangsu Province Engineering Research Centre of Stomatological Translational Medicine, Nanjing Medical University, Nanjing 210029, Jiangsu, China
| | - Jianliang Jin
- Department of Human Anatomy, Research Centre for Bone and Stem Cells, School of Basic Medical Sciences, Key Laboratory for Aging & Disease, School of Biomedical Engineering and informatics, Nanjing Medical University, Nanjing 211166, Jiangsu, China
| | - Huijun Jiang
- Medical Basic Research Innovation Center for Cardiovascular and Cerebrovascular Diseases, Ministry of Education, International Joint Laboratory for Drug Target of Critical Illnesses, School of Pharmacy, Nanjing Medical University, Nanjing 211166, China
| | - Feng Han
- Medical Basic Research Innovation Center for Cardiovascular and Cerebrovascular Diseases, Ministry of Education, International Joint Laboratory for Drug Target of Critical Illnesses, School of Pharmacy, Nanjing Medical University, Nanjing 211166, China
| | - Jiandong Jiang
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, China
| | - Fan Wu
- Medical Basic Research Innovation Center for Cardiovascular and Cerebrovascular Diseases, Ministry of Education, International Joint Laboratory for Drug Target of Critical Illnesses, School of Pharmacy, Nanjing Medical University, Nanjing 211166, China
| | - Yuli Wang
- Department of Oral and Maxillofacial Surgery, The Affiliated Stomatological Hospital of Nanjing Medical University, Jiangsu Province Key Laboratory of Oral Diseases, Jiangsu Province Engineering Research Centre of Stomatological Translational Medicine, Nanjing Medical University, Nanjing 210029, Jiangsu, China
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18
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Khosravi G, Mostafavi S, Bastan S, Ebrahimi N, Gharibvand RS, Eskandari N. Immunologic tumor microenvironment modulators for turning cold tumors hot. Cancer Commun (Lond) 2024; 44:521-553. [PMID: 38551889 PMCID: PMC11110955 DOI: 10.1002/cac2.12539] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Revised: 03/03/2024] [Accepted: 03/12/2024] [Indexed: 05/23/2024] Open
Abstract
Tumors can be classified into distinct immunophenotypes based on the presence and arrangement of cytotoxic immune cells within the tumor microenvironment (TME). Hot tumors, characterized by heightened immune activity and responsiveness to immune checkpoint inhibitors (ICIs), stand in stark contrast to cold tumors, which lack immune infiltration and remain resistant to therapy. To overcome immune evasion mechanisms employed by tumor cells, novel immunologic modulators have emerged, particularly ICIs targeting cytotoxic T-lymphocyte-associated protein 4 (CTLA-4) and programmed cell death protein 1/programmed death-ligand 1(PD-1/PD-L1). These agents disrupt inhibitory signals and reactivate the immune system, transforming cold tumors into hot ones and promoting effective antitumor responses. However, challenges persist, including primary resistance to immunotherapy, autoimmune side effects, and tumor response heterogeneity. Addressing these challenges requires innovative strategies, deeper mechanistic insights, and a combination of immune interventions to enhance the effectiveness of immunotherapies. In the landscape of cancer medicine, where immune cold tumors represent a formidable hurdle, understanding the TME and harnessing its potential to reprogram the immune response is paramount. This review sheds light on current advancements and future directions in the quest for more effective and safer cancer treatment strategies, offering hope for patients with immune-resistant tumors.
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Affiliation(s)
- Gholam‐Reza Khosravi
- Department of Medical ImmunologySchool of MedicineIsfahan University of Medical SciencesIsfahanIran
| | - Samaneh Mostafavi
- Department of ImmunologyFaculty of Medical SciencesTarbiat Modares UniversityTehranIran
| | - Sanaz Bastan
- Department of Medical ImmunologySchool of MedicineIsfahan University of Medical SciencesIsfahanIran
| | - Narges Ebrahimi
- Department of Medical ImmunologySchool of MedicineIsfahan University of Medical SciencesIsfahanIran
| | - Roya Safari Gharibvand
- Department of ImmunologySchool of MedicineAhvaz Jundishapur University of Medical SciencesAhvazIran
| | - Nahid Eskandari
- Department of Medical ImmunologySchool of MedicineIsfahan University of Medical SciencesIsfahanIran
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Iacobini C, Vitale M, Haxhi J, Menini S, Pugliese G. Impaired Remodeling of White Adipose Tissue in Obesity and Aging: From Defective Adipogenesis to Adipose Organ Dysfunction. Cells 2024; 13:763. [PMID: 38727299 PMCID: PMC11083890 DOI: 10.3390/cells13090763] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2024] [Revised: 04/22/2024] [Accepted: 04/25/2024] [Indexed: 05/13/2024] Open
Abstract
The adipose organ adapts and responds to internal and environmental stimuli by remodeling both its cellular and extracellular components. Under conditions of energy surplus, the subcutaneous white adipose tissue (WAT) is capable of expanding through the enlargement of existing adipocytes (hypertrophy), followed by de novo adipogenesis (hyperplasia), which is impaired in hypertrophic obesity. However, an impaired hyperplastic response may result from various defects in adipogenesis, leading to different WAT features and metabolic consequences, as discussed here by reviewing the results of the studies in animal models with either overexpression or knockdown of the main molecular regulators of the two steps of the adipogenesis process. Moreover, impaired WAT remodeling with aging has been associated with various age-related conditions and reduced lifespan expectancy. Here, we delve into the latest advancements in comprehending the molecular and cellular processes underlying age-related changes in WAT function, their involvement in common aging pathologies, and their potential as therapeutic targets to influence both the health of elderly people and longevity. Overall, this review aims to encourage research on the mechanisms of WAT maladaptation common to conditions of both excessive and insufficient fat tissue. The goal is to devise adipocyte-targeted therapies that are effective against both obesity- and age-related disorders.
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20
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Wang Y, Chen G, Xu M, Cui Y, He W, Zeng H, Zeng T, Cheng R, Li X. Caspase-1 Deficiency Modulates Adipogenesis through Atg7-Mediated Autophagy: An Inflammatory-Independent Mechanism. Biomolecules 2024; 14:501. [PMID: 38672517 PMCID: PMC11048440 DOI: 10.3390/biom14040501] [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: 04/02/2024] [Revised: 04/16/2024] [Accepted: 04/19/2024] [Indexed: 04/28/2024] Open
Abstract
Obesity stands as a significant risk factor for type 2 diabetes, hyperlipidemia, and cardiovascular diseases, intertwining increased inflammation and decreased adipogenesis with metabolic disorders. Studies have highlighted the correlation between Caspase-1 and inflammation in obesity, elucidating its essential role in the biological functions of adipose tissue. However, the impact of Caspase-1 on adipogenesis and the underlying mechanisms remain largely elusive. In our study, we observed a positive correlation between Caspase-1 expression and obesity and its association with adipogenesis. In vivo experiments revealed that, under normal diet conditions, Caspase-1 deficiency improved glucose homeostasis, stimulated subcutaneous adipose tissue expansion, and enhanced adipogenesis. Furthermore, our findings indicate that Caspase-1 deficiency promotes the expression of autophagy-related proteins and inhibits autophagy with 3-MA or CQ blocked Caspase-1 deficiency-induced adipogenesis in vitro. Notably, Caspase-1 deficiency promotes adipogenesis via Atg7-mediated autophagy activation. In addition, Caspase-1 deficiency resisted against high-fat diet-induced obesity and glucose intolerance. Our study proposes the downregulation of Caspase-1 as a promising strategy for mitigating obesity and its associated metabolic disorders.
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Affiliation(s)
| | | | | | | | | | | | | | - Rui Cheng
- Institute of Life Sciences, School of Basic Medicine, Chongqing Medical University, Chongqing 400016, China
| | - Xi Li
- Institute of Life Sciences, School of Basic Medicine, Chongqing Medical University, Chongqing 400016, China
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21
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González-Sánchez GD, Granados-López AJ, López-Hernández Y, Robles MJG, López JA. miRNAs as Interconnectors between Obesity and Cancer. Noncoding RNA 2024; 10:24. [PMID: 38668382 PMCID: PMC11055034 DOI: 10.3390/ncrna10020024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Revised: 03/21/2024] [Accepted: 04/04/2024] [Indexed: 04/29/2024] Open
Abstract
Obesity and cancer are a concern of global interest. It is proven that obesity may trigger the development or progression of some types of cancer; however, the connection by non-coding RNAs has not been totally explored. In the present review, we discuss miRNAs and lncRNAs dysregulation involved in obesity and some cancers, shedding light on how these conditions may exacerbate one another through the dysregulation of ncRNAs. lncRNAs have been reported as regulating microRNAs. An in silico investigation of lncRNA and miRNA interplay is presented. Our investigation revealed 44 upregulated and 49 downregulated lncRNAs in obesity and cancer, respectively. miR-375, miR-494-3p, miR-1908, and miR-196 were found interacting with 1, 4, 4 and 4 lncRNAs, respectively, which are involved in PPARγ cell signaling regulation. Additionally, miR-130 was found to be downregulated in obesity and reported as modulating 5 lncRNAs controlling PPARγ cell signaling. Similarly, miR-128-3p and miR-143 were found to be downregulated in obesity and cancer, interacting with 5 and 4 lncRNAs, respectively, associated with MAPK cell signaling modulation. The delicate balance between miRNA and lncRNA expression emerges as a critical determinant in the development of obesity-associated cancers, presenting these molecules as promising biomarkers. However, additional and deeper studies are needed to reach solid conclusions about obesity and cancer connection by ncRNAs.
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Affiliation(s)
- Grecia Denisse González-Sánchez
- Doctorate in Biosciences, University Center of Los Altos, University of Guadalajara, Tepatitlán de Morelos C.P. 47620, Mexico;
| | - Angelica Judith Granados-López
- Laboratory of microRNAs and Cancer, Academic Unit of Biological Sciences, Autonomous University of Zacatecas “Francisco García Salinas”, Zacatecas C.P. 98066, Mexico;
| | - Yamilé López-Hernández
- Laboratory of Proteomics and Metabolomics, Cátedras-CONACYT, Academic Unit of Biological Sciences, Autonomous University of Zacatecas “Francisco García Salinas”, Zacatecas C.P. 98066, Mexico;
| | - Mayra Judith García Robles
- Biotechnology Department of the Polytechnic, University of Zacatecas, Fresnillo, Zacatecas C.P. 99059, Mexico
| | - Jesús Adrián López
- Laboratory of microRNAs and Cancer, Academic Unit of Biological Sciences, Autonomous University of Zacatecas “Francisco García Salinas”, Zacatecas C.P. 98066, Mexico;
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22
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He L, Feng X, Hu C, Liu S, Sheng H, Cai B, Ma Y. HOXA9 gene inhibits proliferation and differentiation and promotes apoptosis of bovine preadipocytes. BMC Genomics 2024; 25:358. [PMID: 38605318 PMCID: PMC11007997 DOI: 10.1186/s12864-024-10231-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2023] [Accepted: 03/15/2024] [Indexed: 04/13/2024] Open
Abstract
BACKGROUND Hox gene family is an important transcription factor that regulates cell process, and plays a role in the process of adipocytes differentiation and fat deposition. Previous transcriptome sequencing studies have indicated that the Homeobox A9 gene (HOXA9) is a candidate gene for regulating the process of bovine lipid metabolism, but the function and specific mechanism of action remain unclear. Therefore, this study aims to explore the role of HOXA9 in the proliferation, differentiation and apoptosis of bovine preadipocytes through gain-of-function and lose-of-function. RESULT It found HOXA9 highly expressed in bovine adipose tissue, and its expression level changed significantly during adipocytes differentiation process. It gave a hint that HOXA9 may be involved in the process of bovine lipid metabolism. The results of HOXA9 gain-of-function experiments indicated that HOXA9 appeared to act as a negative regulator not only in the differentiation but also in the proliferation of bovine preadipocytes, which is mainly reflected that overexpression of HOXA9 down-regulate the mRNA and protein expression level of PPARγ, CEBPα and FABP4 (P < 0.05). The mRNA expression level of CDK1, CDK2, PCNA, CCNA2, CCNB1, CCND1 and CCNE2, as well as the protein expression of CDK2 also significantly decreased. The decrease of lipid droplets content was the main characteristic of the phenotype (P < 0.01), which further supported the evidence that HOXA9 was a negative regulator of preadipocytes differentiation. The decrease of cell proliferation rate and EdU positive rate, as well as the limitation of transition of preadipocytes from G0/G1 phase to S phase also provided evidence for the inhibition of proliferation. Apart from this above, we noted an interesting phenomenon that overexpression of HOXA9 showed in a significant upregulation of both mRNA and protein level of apoptosis markers, accompanied by a significant increase in cell apoptosis rate. These data led us not to refute the fact that HOXA9 played an active regulatory role in apoptosis. HOXA9 loss-of-function experiments, however, yielded the opposite results. Considering that HOXA9 acts as a transcription factor, we predicted its target genes. Dual luciferase reporter assay system indicated that overexpression of HOXA9 inhibits activity of PCNA promoter. CONCLUSION Taken together, we demonstrated for the first time that HOXA9 played a role as a negative regulatory factor in the differentiation and proliferation of preadipocytes, but played a positive regulatory role in apoptosis, and it may play a regulatory role by targeting PCNA. This study provides basic data for further exploring the regulatory network of intramuscular fat deposition in bovine.
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Affiliation(s)
- Lixia He
- College of Animal Science and Technology, Key Laboratory of Ruminant Molecular and Cellular Breeding of Ningxia Hui Autonomous Region, Ningxia University, 750021, Yinchuan, China
| | - Xue Feng
- College of Animal Science and Technology, Key Laboratory of Ruminant Molecular and Cellular Breeding of Ningxia Hui Autonomous Region, Ningxia University, 750021, Yinchuan, China
| | - Chunli Hu
- College of Animal Science and Technology, Key Laboratory of Ruminant Molecular and Cellular Breeding of Ningxia Hui Autonomous Region, Ningxia University, 750021, Yinchuan, China
| | - Shuang Liu
- College of Animal Science and Technology, Key Laboratory of Ruminant Molecular and Cellular Breeding of Ningxia Hui Autonomous Region, Ningxia University, 750021, Yinchuan, China
| | - Hui Sheng
- College of Animal Science and Technology, Key Laboratory of Ruminant Molecular and Cellular Breeding of Ningxia Hui Autonomous Region, Ningxia University, 750021, Yinchuan, China
| | - Bei Cai
- College of Animal Science and Technology, Key Laboratory of Ruminant Molecular and Cellular Breeding of Ningxia Hui Autonomous Region, Ningxia University, 750021, Yinchuan, China
| | - Yun Ma
- College of Animal Science and Technology, Key Laboratory of Ruminant Molecular and Cellular Breeding of Ningxia Hui Autonomous Region, Ningxia University, 750021, Yinchuan, China.
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23
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Chang YH, Tseng YH, Wang JM, Tsai YS, Liu XL, Huang HS. Phosphorylation of TG-interacting factor 1 at carboxyl-terminal sites in response to insulin regulates adipocyte differentiation. FEBS Lett 2024; 598:945-955. [PMID: 38472156 DOI: 10.1002/1873-3468.14849] [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: 10/07/2023] [Revised: 01/17/2024] [Accepted: 01/28/2024] [Indexed: 03/14/2024]
Abstract
TG-interacting factor 1 (TGIF1) contributes to the differentiation of murine white preadipocyte and human adipose tissue-derived stem cells; however, its regulation is not well elucidated. Insulin is a component of the adipogenic cocktail that induces ERK signaling. TGIF1 phosphorylation and sustained stability in response to insulin were reduced through the use of specific MEK inhibitor U0126. Mutagenesis at T235 or T239 residue of TGIF1 in preadipocytes led to dephosphorylation of TGIF1. The reduced TGIF1 stability resulted in an increase in p27kip1 expression, a decrease in phosphorylated Rb expression and cellular proliferation, and a reduced accumulation of lipids compared to the TGIF1-overexpressed cells. These findings highlight that insulin/ERK-driven phosphorylation of the T235 or T239 residue at TGIF1 is crucial for adipocyte differentiation.
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Affiliation(s)
- Yu-Hao Chang
- Department of Medical Laboratory Science and Biotechnology, College of Medicine, National Cheng Kung University, Tainan, Taiwan
- Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Yu-Hua Tseng
- Section on Integrative Physiology and Metabolism, Research Division, Joslin Diabetes Center, Harvard Medical School, Boston, MA, USA
| | - Ju-Ming Wang
- Department of Biotechnology and Bioindustry Sciences, College of Bioscience and Biotechnology, National Cheng Kung University, Tainan, Taiwan
| | - Yau-Sheng Tsai
- Institute of Clinical Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Xin-Lei Liu
- Department of Medical Laboratory Science and Biotechnology, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Huei-Sheng Huang
- Department of Medical Laboratory Science and Biotechnology, College of Medicine, National Cheng Kung University, Tainan, Taiwan
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24
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Hashimoto T, Hirano K. Effects of mifepristone on adipocyte differentiation in mouse 3T3-L1 cells. Cell Mol Biol Lett 2024; 29:45. [PMID: 38553665 PMCID: PMC10981365 DOI: 10.1186/s11658-024-00559-9] [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: 12/27/2023] [Accepted: 02/29/2024] [Indexed: 04/01/2024] Open
Abstract
BACKGROUND Both glucocorticoid receptor and peroxisome proliferator-activated receptor-γ (PPARγ) play a critical role in adipocyte differentiation. Mifepristone is not only an antagonist of the glucocorticoid receptor but also an agonist of PPARγ. Therefore, the present study investigated the effect of mifepristone on adipocyte differentiation. METHODS Mouse 3T3-L1 cells were used as a model for adipocyte differentiation. The lipid droplet formation was evaluated with Bodipy493/503 staining and the expression of adipocyte markers [adiponectin and adipocyte fatty acid binding protein-4 (Fabp4)] was evaluated with quantitative PCR and immunoblot analyses for indication of adipocyte differentiation. siRNA and neutralizing antibodies were used to elucidate the molecular mechanism of mifepristone-induced adipocyte differentiation. Luciferase reporter assay was used to examine the effect of mifepristone on the promoter activity of PPAR-response element (PPRE). The DNA microarray analysis was used to characterize the transcriptome of the mifepristone-induced adipocytes. In vivo adipogenic effect of mifepristone was examined in mice. RESULTS Mifepristone not only enhanced adipocyte differentiation induced by the conventional protocol consisting of insulin, dexamethasone and 3-isobutyl-1-methylxanthine but also induced adipocyte differentiation alone, as evidenced by lipid droplets formation and induction of the expression of adiponectin and Fabp4. These effects were inhibited by an adiponectin-neutralizing antibody and a PPARγ antagonist. Mifepristone activated the promoter activity of PPRE in a manner sensitive to PPARγ antagonist. A principal component analysis (PCA) of DNA microarray data revealed that the mifepristone-induced adipocytes represent some characteristics of the in situ adipocytes in normal adipose tissues to a greater extent than those induced by the conventional protocol. Mifepristone administration induced an increase in the weight of epididymal, perirenal and gluteofemoral adipose tissues. CONCLUSIONS Mifepristone alone is capable of inducing adipocyte differentiation in 3T3-L1 cells and adipogenesis in vivo. PPARγ plays a critical role in the mifepristone-induced adipocyte differentiation. Mifepristone-induced adipocytes are closer to the in situ adipocytes than those induced by the conventional protocol. The present study proposes a single treatment with mifepristone as a novel protocol to induce more physiologically relevant adipocytes in 3T3-L1 cells than the conventional protocol.
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Affiliation(s)
- Takeshi Hashimoto
- Department of Cardiovascular Physiology, Faculty of Medicine, Kagawa University, 1750-1 Miki-Cho, Kita-Gun, Kagawa, 761-0793, Japan.
| | - Katsuya Hirano
- Department of Cardiovascular Physiology, Faculty of Medicine, Kagawa University, 1750-1 Miki-Cho, Kita-Gun, Kagawa, 761-0793, Japan
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25
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Zhao J, Adiele N, Gomes D, Malovichko M, Conklin DJ, Ekuban A, Luo J, Gripshover T, Watson WH, Banerjee M, Smith ML, Rouchka EC, Xu R, Zhang X, Gondim DD, Cave MC, O’Toole TE. Obesogenic polystyrene microplastic exposures disrupt the gut-liver-adipose axis. Toxicol Sci 2024; 198:210-220. [PMID: 38291899 PMCID: PMC10964747 DOI: 10.1093/toxsci/kfae013] [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] [Indexed: 02/01/2024] Open
Abstract
Microplastics (MP) derived from the weathering of polymers, or synthesized in this size range, have become widespread environmental contaminants and have found their way into water supplies and the food chain. Despite this awareness, little is known about the health consequences of MP ingestion. We have previously shown that the consumption of polystyrene (PS) beads was associated with intestinal dysbiosis and diabetes and obesity in mice. To further evaluate the systemic metabolic effects of PS on the gut-liver-adipose tissue axis, we supplied C57BL/6J mice with normal water or that containing 2 sizes of PS beads (0.5 and 5 µm) at a concentration of 1 µg/ml. After 13 weeks, we evaluated indices of metabolism and liver function. As observed previously, mice drinking the PS-containing water had a potentiated weight gain and adipose expansion. Here we found that this was associated with an increased abundance of adipose F4/80+ macrophages. These exposures did not cause nonalcoholic fatty liver disease but were associated with decreased liver:body weight ratios and an enrichment in hepatic farnesoid X receptor and liver X receptor signaling. PS also increased hepatic cholesterol and altered both hepatic and cecal bile acids. Mice consuming PS beads and treated with the berry anthocyanin, delphinidin, demonstrated an attenuated weight gain compared with those mice receiving a control intervention and also exhibited a downregulation of cyclic adenosine monophosphate (cAMP) and peroxisome proliferator-activated receptor (PPAR) signaling pathways. This study highlights the obesogenic role of PS in perturbing the gut-liver-adipose axis and altering nuclear receptor signaling and intermediary metabolism. Dietary interventions may limit the adverse metabolic effects of PS consumption.
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Affiliation(s)
- Jingjing Zhao
- Division of Environmental Medicine, Department of Medicine, School of Medicine, Christina Lee Brown Envirome Institute, University of Louisville, Louisville, Kentucky 40202, USA
- The Center for Integrative Environmental Health Sciences, University of Louisville, Louisville, Kentucky 40202, USA
| | - Ngozi Adiele
- Department of Pharmacology and Toxicology, School of Medicine, University of Louisville, Louisville, Kentucky 40202, USA
| | - Daniel Gomes
- Division of Environmental Medicine, Department of Medicine, School of Medicine, Christina Lee Brown Envirome Institute, University of Louisville, Louisville, Kentucky 40202, USA
- Department of Pharmacology and Toxicology, School of Medicine, University of Louisville, Louisville, Kentucky 40202, USA
| | - Marina Malovichko
- Division of Environmental Medicine, Department of Medicine, School of Medicine, Christina Lee Brown Envirome Institute, University of Louisville, Louisville, Kentucky 40202, USA
- The Superfund Research Center, University of Louisville, Louisville, Kentucky 40202, USA
| | - Daniel J Conklin
- Division of Environmental Medicine, Department of Medicine, School of Medicine, Christina Lee Brown Envirome Institute, University of Louisville, Louisville, Kentucky 40202, USA
- The Center for Integrative Environmental Health Sciences, University of Louisville, Louisville, Kentucky 40202, USA
- The Superfund Research Center, University of Louisville, Louisville, Kentucky 40202, USA
| | - Abigail Ekuban
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Medicine, School of Medicine, University of Louisville, Louisville, Kentucky 40202, USA
- The Hepatobiology and Toxicology Center, University of Louisville, Louisville, Kentucky 40202, USA
| | - Jianzhu Luo
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Medicine, School of Medicine, University of Louisville, Louisville, Kentucky 40202, USA
| | - Tyler Gripshover
- Department of Pharmacology and Toxicology, School of Medicine, University of Louisville, Louisville, Kentucky 40202, USA
- The Superfund Research Center, University of Louisville, Louisville, Kentucky 40202, USA
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Medicine, School of Medicine, University of Louisville, Louisville, Kentucky 40202, USA
| | - Walter H Watson
- The Center for Integrative Environmental Health Sciences, University of Louisville, Louisville, Kentucky 40202, USA
- Department of Pharmacology and Toxicology, School of Medicine, University of Louisville, Louisville, Kentucky 40202, USA
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Medicine, School of Medicine, University of Louisville, Louisville, Kentucky 40202, USA
- The Hepatobiology and Toxicology Center, University of Louisville, Louisville, Kentucky 40202, USA
| | - Mayukh Banerjee
- The Center for Integrative Environmental Health Sciences, University of Louisville, Louisville, Kentucky 40202, USA
- Department of Pharmacology and Toxicology, School of Medicine, University of Louisville, Louisville, Kentucky 40202, USA
| | - Melissa L Smith
- The Center for Integrative Environmental Health Sciences, University of Louisville, Louisville, Kentucky 40202, USA
- Department of Biochemistry & Molecular Genetics, School of Medicine, University of Louisville, Louisville, Kentucky 40202, USA
| | - Eric C Rouchka
- Department of Biochemistry & Molecular Genetics, School of Medicine, University of Louisville, Louisville, Kentucky 40202, USA
- KY INBRE Bioinformatics Core, University of Louisville, Louisville, Kentucky 40202, USA
| | - Raobo Xu
- Department of Chemistry, School of Arts and Sciences, University of Louisville, Louisville, Kentucky 40292, USA
- Center for Regulatory and Environmental Analytical Metabolomics, University of Louisville, Louisville, Kentucky 40292, USA
| | - Xiang Zhang
- The Center for Integrative Environmental Health Sciences, University of Louisville, Louisville, Kentucky 40202, USA
- The Hepatobiology and Toxicology Center, University of Louisville, Louisville, Kentucky 40202, USA
- Center for Regulatory and Environmental Analytical Metabolomics, University of Louisville, Louisville, Kentucky 40292, USA
- Division of Analytic Chemistry, Department of Chemistry, School of Arts and Sciences, University of Louisville, Louisville, Kentucky 40292, USA
- The Alcohol Research Center, University of Louisville, Louisville, Kentucky 40202, USA
| | - Dibson D Gondim
- Department of Pathology and Laboratory, School of Medicine, University of Louisville, Louisville, Kentucky 40202, USA
| | - Matthew C Cave
- The Center for Integrative Environmental Health Sciences, University of Louisville, Louisville, Kentucky 40202, USA
- Department of Pharmacology and Toxicology, School of Medicine, University of Louisville, Louisville, Kentucky 40202, USA
- The Superfund Research Center, University of Louisville, Louisville, Kentucky 40202, USA
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Medicine, School of Medicine, University of Louisville, Louisville, Kentucky 40202, USA
- The Hepatobiology and Toxicology Center, University of Louisville, Louisville, Kentucky 40202, USA
- Department of Biochemistry & Molecular Genetics, School of Medicine, University of Louisville, Louisville, Kentucky 40202, USA
- The Robley Rex Veterans Affairs Medical Center, Louisville, KY 40206, USA
| | - Timothy E O’Toole
- Division of Environmental Medicine, Department of Medicine, School of Medicine, Christina Lee Brown Envirome Institute, University of Louisville, Louisville, Kentucky 40202, USA
- The Center for Integrative Environmental Health Sciences, University of Louisville, Louisville, Kentucky 40202, USA
- The Superfund Research Center, University of Louisville, Louisville, Kentucky 40202, USA
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Xu X, Charrier A, Congrove S, Buchner DA. Cell-state dependent regulation of PPAR γ signaling by ZBTB9 in adipocytes. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.03.04.583402. [PMID: 38496622 PMCID: PMC10942320 DOI: 10.1101/2024.03.04.583402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/19/2024]
Abstract
Adipocytes play a critical role in metabolic homeostasis. Peroxisome proliferator-activated receptor- γ (PPAR γ ) is a nuclear hormone receptor that is a master regulator of adipocyte differentiation and function. ZBTB9 was predicted to interact with PPAR γ based on large-scale protein interaction experiments. In addition, GWAS studies in the type 2 diabetes (T2D) Knowledge Portal revealed associations between Z btb9 and both BMI and T2D risk. Here we show that ZBTB9 positively regulates PPAR γ activity in mature adipocytes. Surprisingly Z btb9 knockdown (KD) also increased adipogenesis in 3T3-L1 cells and human preadipocytes. E2F activity was increased and E2F downstream target genes were upregulated in Zbtb9 -KD preadipocytes. Accordingly, RB phosphorylation, which regulates E2F activity, was enhanced in Zbtb9 -KD preadipocytes. Critically, an E2F1 inhibitor blocked the effects of Zbtb9 deficiency on adipogenic gene expression and lipid accumulation. Collectively, these results demonstrate that Zbtb9 inhibits adipogenesis as a negative regulator of Pparg expression via altered RB-E2F1 signaling. Our findings reveal complex cell-state dependent roles of ZBTB9 in adipocytes, identifying a new molecule that regulates adipogenesis and adipocyte biology as both a positive and negative regulator of PPAR γ signaling depending on the cellular context, and thus may be important in the pathogenesis and treatment of obesity and T2D.
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Goris M, Jacobsen RG, Lewis AE. Presence of active AKT in the nucleus upon adipocyte differentiation of 3T3-L1 cells. MICROPUBLICATION BIOLOGY 2024; 2024:10.17912/micropub.biology.001140. [PMID: 38495585 PMCID: PMC10940900 DOI: 10.17912/micropub.biology.001140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Figures] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Revised: 02/14/2024] [Accepted: 02/25/2024] [Indexed: 03/19/2024]
Abstract
AKT is an essential player in the phosphoinositide 3-kinase (PI3K) signalling pathway. Although the mechanisms of its action are well understood at the plasma membrane, AKT can also be found in the nucleus. In adipocytes, this pathway is activated during the process of adipogenesis and solicits both plasma membrane and nuclear AKT activity. However, the endogenous presence of active AKT in the nucleus during adipogenesis has not been shown. Here, we show that the levels of active AKT phosphorylated at Ser-473 increase rapidly after the induction of differentiation in 3T3-L1 cells, both in the cytoplasm and in the nucleus, and tend to remain elevated over the course of differentiation. In conclusion, these results support the notion that nuclear AKT plays an important role in this process.
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Affiliation(s)
- Marianne Goris
- Department of Biological Sciences, University of Bergen, Bergen, Vestland, Norway
| | - Rhîan G. Jacobsen
- Department of Biological Sciences, University of Bergen, Bergen, Vestland, Norway
| | - Aurélia E. Lewis
- Department of Biological Sciences, University of Bergen, Bergen, Vestland, Norway
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28
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Wang Z, Bi M, Zhe X, Wang X, Dai B, Han X, Ren B, Liang H, Liu D. Molecular mechanism underlying miR-204-5p regulation of adipose-derived stem cells differentiation into cells from three germ layers. Cell Death Discov 2024; 10:95. [PMID: 38388551 PMCID: PMC10884001 DOI: 10.1038/s41420-024-01852-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 02/03/2024] [Accepted: 02/06/2024] [Indexed: 02/24/2024] Open
Abstract
The limited differentiation ability of adipose-derived stem cells (ADSCs) limits their application in stem cell therapy and regenerative medicine. Here, we explore the molecular mechanism by which miR-204-5p regulates ADSCs differentiation into cells derived from the three germ layers (i.e., adipocytes, neurocytes, and hepatocytes). Although miR-204-5p overexpression inhibited ADSCs differentiation into adipocytes, neurocyte and hepatocyte differentiation were promoted. Mechanistically, miR-204-5p inhibited the expression of PPARG by regulating the AMPK signaling pathway, thereby inhibiting ADSCs differentiation into adipocytes. Further, miR-204-5p regulated JAG1/NOTCH3 axis for the inhibition of differentiation into adipocytes and promotion of differentiation into neurocytes. miR-204-5p might also promote ADSCs differentiation into hepatocytes by upregulating E2F8. The findings of this study provide novel insights into the regulatory mechanisms underlying early embryonic development and will help to facilitate the application of ADSCs in stem cell therapy and regenerative medicine.
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Affiliation(s)
- Zhimin Wang
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, Hohhot, 010070, P.R. China
- Reproductive Medicine Center, Affiliated Hospital of Inner Mongolia Medical University, Hohhot, 010050, P.R. China
| | - Meiyu Bi
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, Hohhot, 010070, P.R. China
| | - Xiaoshu Zhe
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, Hohhot, 010070, P.R. China
| | - Xiao Wang
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, Hohhot, 010070, P.R. China
| | - Bai Dai
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, Hohhot, 010070, P.R. China
- Reproductive Medicine Center, Affiliated Hospital of Inner Mongolia Medical University, Hohhot, 010050, P.R. China
| | - Xiaoyu Han
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, Hohhot, 010070, P.R. China
| | - Bingxu Ren
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, Hohhot, 010070, P.R. China
| | - Hao Liang
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, Hohhot, 010070, P.R. China
| | - Dongjun Liu
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, Hohhot, 010070, P.R. China.
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29
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Mascarenhas C, Sousa ACA, Rato L. Effects of Pharmaceutical Substances with Obesogenic Activity on Male Reproductive Health. Int J Mol Sci 2024; 25:2324. [PMID: 38397000 PMCID: PMC10889417 DOI: 10.3390/ijms25042324] [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: 12/30/2023] [Revised: 01/28/2024] [Accepted: 02/09/2024] [Indexed: 02/25/2024] Open
Abstract
Obesogens have been identified as a significant factor associated with increasing obesity rates, particularly in developed countries. Substances with obesogenic traits are prevalent in consumer products, including certain pharmaceuticals. Specific classes of pharmaceuticals have been recognized for their ability to induce weight gain, often accompanied by hormonal alterations that can adversely impact male fertility. Indeed, research has supplied evidence underscoring the crucial role of obesogens and therapeutic agents in the normal functioning of the male reproductive system. Notably, sperm count and various semen parameters have been closely linked to a range of environmental and nutritional factors, including chemicals and pharmacological agents exhibiting obesogenic properties. This review aimed to explore studies focused on analyzing male fertility parameters, delving into the intricacies of sperm quality, and elucidating the direct and adverse effects that pharmacological agents may have on these aspects.
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Affiliation(s)
- Caio Mascarenhas
- School of Health, Polytechnic Institute of Guarda, 6300-035 Guarda, Portugal;
| | - Ana C. A. Sousa
- Department of Biology, School of Science and Technology, University of Évora, 7006-554 Évora, Portugal;
- Comprehensive Health Research Centre (CHRC), University of Évora, 7000-671 Évora, Portugal
| | - Luís Rato
- School of Health, Polytechnic Institute of Guarda, 6300-035 Guarda, Portugal;
- CICS-UBI—Health Sciences Research Centre, University of Beira Interior, 6201-506 Covilhã, Portugal
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30
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Abbasi K, Zarezadeh R, Valizadeh A, Mehdizadeh A, Hamishehkar H, Nouri M, Darabi M. White-brown adipose tissue interplay in polycystic ovary syndrome: Therapeutic avenues. Biochem Pharmacol 2024; 220:116012. [PMID: 38159686 DOI: 10.1016/j.bcp.2023.116012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Accepted: 12/22/2023] [Indexed: 01/03/2024]
Abstract
This study highlights the therapeutic potential of activating brown adipose tissue (BAT) for managing polycystic ovary syndrome (PCOS), a prevalent endocrine disorder associated with metabolic and reproductive abnormalities. BAT plays a crucial role in regulating energy expenditure and systemic insulin sensitivity, making it an attractive target for the treatment of obesity and metabolic diseases. Recent research suggests that impaired BAT function and mass may contribute to the link between metabolic disturbances and reproductive issues in PCOS. Additionally, abnormal white adipose tissue (WAT) can exacerbate these conditions by releasing adipokines and nonesterified fatty acids. In this review, we explored the impact of WAT changes on BAT function in PCOS and discussed the potential of BAT activation as a therapeutic strategy to improve PCOS symptoms. We propose that BAT activation holds promise for managing PCOS; however, further research is needed to confirm its efficacy and to develop clinically feasible methods for BAT activation.
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Affiliation(s)
- Khadijeh Abbasi
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; Department of Biochemistry and Clinical Laboratories, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Reza Zarezadeh
- Women's Reproductive Health Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Amir Valizadeh
- Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Amir Mehdizadeh
- Hematology and Oncology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Hamed Hamishehkar
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mohammad Nouri
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
| | - Masoud Darabi
- Department of Biochemistry and Clinical Laboratories, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran; Division of Experimental Oncology, Department of Hematology and Oncology, University Medical Center Schleswig-Holstein, Campus Lübeck, Germany.
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31
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Yang H, Li C, Che M, Liang J, Tian X, Yang G, Sun C. HDAC11 deficiency resists obesity by converting adipose-derived stem cells into brown adipocyte-like cells. Int J Biol Macromol 2024; 258:128852. [PMID: 38110164 DOI: 10.1016/j.ijbiomac.2023.128852] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2023] [Revised: 11/17/2023] [Accepted: 12/14/2023] [Indexed: 12/20/2023]
Abstract
Obesity, with complications such as type 2 diabetes, dyslipidemia, and even cancer, is rampant worldwide. Histone deacetylases (HDACs) have been extensively studied as key players in the epigenetic regulation of cellular metabolism. However, the function of HDAC11 has long been focused on the immune and nervous systems and cancer development, and its potential role in obesity has been poorly studied. We found that the expression of HDAC11 was highly upregulated in the white adipose tissue (WAT) of obese mice and was closely related to the progression of obesity. Knockdown of HDAC11 by lentiviral injection in high-fat diet-fed mice attenuated the development of obesity. Furthermore, knockdown of HDAC11 ameliorated WAT hypertrophy and induced WAT browning. At the cellular level, silencing of HDAC11 promoted the differentiation of adipose-derived stem cells (ADSCs) into brown adipocyte-like cells and inhibited the proliferation of ADSCs. More interestingly, HDAC11 expression was elevated in ADSCs isolated from obese mice, and silencing of HDAC11 facilitated the spontaneous differentiation of ADSCs into mesoderm, which is the source of adipocytes. This also superficially and effectively demonstrates the exciting prospect of HDAC11 silencing in obesity research and treatment, as a valve for "energy saving and flow reduction".
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Affiliation(s)
- Hong Yang
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Chaowei Li
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Meng Che
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Juntong Liang
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Xin Tian
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Gongshe Yang
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China.
| | - Chao Sun
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China.
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32
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Ruhl T, Nuptybayeva A, Kim BS, Beier JP. GPR55 inhibits the pro-adipogenic activity of anandamide in human adipose stromal cells. Exp Cell Res 2024; 435:113908. [PMID: 38163565 DOI: 10.1016/j.yexcr.2023.113908] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Revised: 12/22/2023] [Accepted: 12/30/2023] [Indexed: 01/03/2024]
Abstract
The endocannabinoid anandamide (AEA) stimulates adipogenesis via the cannabinoid receptor CB1 in adipose stromal cells (ASCs). However, AEA interacts also with nonclassical cannabinoid receptors, including transient receptor potential cation channel (TRPV)1 and G protein-coupled receptor (GPR)55. Their roles in AEA mediated adipogenesis of human ASCs have not been investigated. We examined the receptor-expressions by immunostaining on human ASCs and tested their functionality by measuring the expression of immediate early genes (IEGs) related to the transcription factor-complex AP-1 upon exposition to receptor agonists. Cells were stimulated with increasing concentrations of specific ligands to investigate the effects on ASC viability (proliferation and metabolic activity), secretory activity, and AEA mediated differentiation. ASCs expressed both receptors, and their activation suppressed IEG expression. TRPV1 did not affect viability or cytokine secretion. GPR55 decreased proliferation, and it inhibited the release of hepatocyte growth factor. Blocking GPR55 increased the pro-adipogenic activity of AEA. These data suggest that GPR55 functions as negative regulator of cannabinoid mediated pro-adipogenic capacity in ASCs.
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Affiliation(s)
- Tim Ruhl
- Department of Plastic Surgery, Hand Surgery-Burn Center, University Hospital RWTH Aachen, Pauwelsstraße 30, 52074, Aachen, Germany.
| | - Aigul Nuptybayeva
- Department of Plastic Surgery, Hand Surgery-Burn Center, University Hospital RWTH Aachen, Pauwelsstraße 30, 52074, Aachen, Germany.
| | - Bong-Sung Kim
- Department of Plastic Surgery, Hand Surgery-Burn Center, University Hospital RWTH Aachen, Pauwelsstraße 30, 52074, Aachen, Germany; Department of Plastic and Hand Surgery, University Hospital Zurich, Raemistrasse 100, 8091, Zurich, Switzerland.
| | - Justus P Beier
- Department of Plastic Surgery, Hand Surgery-Burn Center, University Hospital RWTH Aachen, Pauwelsstraße 30, 52074, Aachen, Germany.
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33
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Jia M, Liu S, Xiao Y, Zhang Z, Li M, Qi X, Qi X, Yu L, Zhang C, Jiang T, Pan T, Sun Y, Yu J, Su S, Li Y, Damba T, Batchuluun K, Liang Y, Zhou L. Deletion of the mitochondrial calcium uniporter in adipose tissue promotes energy expenditure and alleviates diet-induced obesity. Mol Metab 2024; 80:101873. [PMID: 38199601 PMCID: PMC10831290 DOI: 10.1016/j.molmet.2024.101873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Revised: 01/01/2024] [Accepted: 01/03/2024] [Indexed: 01/12/2024] Open
Abstract
OBJECTIVE Studies have shown a correlation between obesity and mitochondrial calcium homeostasis, yet it is unclear whether and how Mcu regulates adipocyte lipid deposition. This study aims to provide new potential target for the treatment of obesity and related metabolic diseases, and to explore the function of Mcu in adipose tissue. METHODS We firstly investigated the role of mitoxantrone, an Mcu inhibitor, in the regulation of glucose and lipid metabolism in mouse adipocytes (3T3-L1 cells). Secondly, C57BL/6J mice were used as a research model to investigate the effects of Mcu inhibitors on fat accumulation and glucose metabolism in mice on a high-fat diet (HFD), and by using CRISPR/Cas9 technology, adipose tissue-specific Mcu knockdown mice (Mcufl/+ AKO) and Mcu knockout of mice (Mcufl/fl AKO) were obtained, to further investigate the direct effects of Mcu on fat deposition, glucose tolerance and insulin sensitivity in mice on a high-fat diet. RESULTS We found the Mcu inhibitor reduced adipocytes lipid accumulation and adipose tissues mass in mice fed an HFD. Both Mcufl/+ AKO mice and Mcufl/fl AKO mice were resistant to HFD-induced obesity, compared to control mice. Mice with Mcufl/fl AKO showed improved glucose tolerance and insulin sensitivity as well as reduced hepatic lipid accumulation. Mechanistically, inhibition of Mcu promoted mitochondrial biogenesis and adipocyte browning, increase energy expenditure and alleviates diet-induced obesity. CONCLUSIONS Our study demonstrates a link between adipocyte lipid accumulation and mCa2+ levels, suggesting that adipose-specific Mcu deficiency alleviates HFD-induced obesity and ameliorates metabolic disorders such as insulin resistance and hepatic steatosis. These effects may be achieved by increasing mitochondrial biosynthesis, promoting white fat browning and enhancing energy metabolism.
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Affiliation(s)
- Mengting Jia
- College of Animal Science and Technology, Guangxi University, Nanning, 530004, China
| | - Siqi Liu
- Institute of Digestive Disease, Guangxi Academy of Medical Sciences, The People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530021, China
| | - Yang Xiao
- Institute of Digestive Disease, Guangxi Academy of Medical Sciences, The People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530021, China
| | - Zhiwang Zhang
- Institute of Digestive Disease, Guangxi Academy of Medical Sciences, The People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530021, China
| | - Mingming Li
- Institute of Digestive Disease, Guangxi Academy of Medical Sciences, The People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530021, China
| | - Xinyu Qi
- College of Animal Science and Technology, Guangxi University, Nanning, 530004, China
| | - Xinyi Qi
- College of Animal Science and Technology, Guangxi University, Nanning, 530004, China
| | - Lin Yu
- Institute of Digestive Disease, Guangxi Academy of Medical Sciences, The People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530021, China
| | - Caiyong Zhang
- Institute of Digestive Disease, Guangxi Academy of Medical Sciences, The People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530021, China
| | - Tianyu Jiang
- Institute of Digestive Disease, Guangxi Academy of Medical Sciences, The People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530021, China
| | - Tingli Pan
- Institute of Digestive Disease, Guangxi Academy of Medical Sciences, The People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530021, China
| | - Yu Sun
- Institute of Digestive Disease, Guangxi Academy of Medical Sciences, The People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530021, China
| | - Jingsu Yu
- Institute of Digestive Disease, Guangxi Academy of Medical Sciences, The People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530021, China
| | - Songtao Su
- Institute of Digestive Disease, Guangxi Academy of Medical Sciences, The People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530021, China
| | - Yixing Li
- College of Animal Science and Technology, Guangxi University, Nanning, 530004, China
| | - Turtushikh Damba
- School of Pharmacy, Mongolian National University of Medical Sciences, Ulan Bator, 14200, Mongolia
| | - Khongorzul Batchuluun
- Institute of Biomedical Science, Department of Histology, Mongolian National University of Medical Sciences, Ulan Bator, 14200, Mongolia
| | - Yunxiao Liang
- Institute of Digestive Disease, Guangxi Academy of Medical Sciences, The People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530021, China
| | - Lei Zhou
- Institute of Digestive Disease, Guangxi Academy of Medical Sciences, The People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530021, China.
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Sabikunnahar B, Caldwell S, Varnum S, Hogan T, Lahue KG, Rathkolb B, Gerlini R, Dragano NRV, Aguilar‐Pimentel A, Irmler M, Sanz‐Moreno A, da Silva‐Buttkus P, Beckers J, Wolf E, Gailus‐Durner V, Fuchs H, Hrabe de Angelis M, Ather JL, Poynter ME, Krementsov DN. LncRNA U90926 is dispensable for the development of obesity-associated phenotypes in vivo. Physiol Rep 2024; 12:e15901. [PMID: 38171546 PMCID: PMC10764201 DOI: 10.14814/phy2.15901] [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: 08/26/2023] [Revised: 12/11/2023] [Accepted: 12/11/2023] [Indexed: 01/05/2024] Open
Abstract
Obesity is a global health problem characterized by excessive fat accumulation, driven by adipogenesis and lipid accumulation. Long non-coding RNAs (lncRNAs) have recently been implicated in regulating adipogenesis and adipose tissue function. Mouse lncRNA U90926 was previously identified as a repressor of in vitro adipogenesis in 3T3-L1 preadipocytes. Consequently, we hypothesized that, in vivo, U90926 may repress adipogenesis, and hence its deletion would increase weight gain and adiposity. We tested the hypothesis by applying U90926-deficient (U9-KO) mice to a high-throughput phenotyping pipeline. Compared with WT, U9-KO mice showed no major differences across a wide range of behavioral, neurological, and other physiological parameters. In mice fed a standard diet, we have found no differences in obesity-related phenotypes, including weight gain, fat mass, and plasma concentrations of glucose, insulin, triglycerides, and free fatty acids, in U9-KO mice compared to WT. U90926 deficiency lacked a major effect on white adipose tissue morphology and gene expression profile. Furthermore, in mice fed a high-fat diet, we found increased expression of U90926 in adipose tissue stromal vascular cell fraction, yet observed no effect of U90926 deficiency on weight gain, fat mass, adipogenesis marker expression, and immune cell infiltration into the adipose tissue. These data suggest that the U90926 lacks an essential role in obesity-related phenotypes and adipose tissue biology in vivo.
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Affiliation(s)
- Bristy Sabikunnahar
- Department of Biomedical and Health SciencesUniversity of VermontBurlingtonVermontUSA
| | - Sydney Caldwell
- Department of Biomedical and Health SciencesUniversity of VermontBurlingtonVermontUSA
| | - Stella Varnum
- Department of Biomedical and Health SciencesUniversity of VermontBurlingtonVermontUSA
| | - Tyler Hogan
- Department of Biomedical and Health SciencesUniversity of VermontBurlingtonVermontUSA
| | - Karolyn G. Lahue
- Department of Biomedical and Health SciencesUniversity of VermontBurlingtonVermontUSA
| | - Birgit Rathkolb
- Institute of Experimental Genetics and German Mouse ClinicHelmholtz Zentrum MünchenNeuherbergGermany
- German Center for Diabetes Research (DZD)NeuherbergGermany
- Institute of Molecular Animal Breeding and Biotechnology, Gene CenterLudwig‐Maximilians‐University MünchenMunichGermany
| | - Raffaele Gerlini
- Institute of Experimental Genetics and German Mouse ClinicHelmholtz Zentrum MünchenNeuherbergGermany
| | - Nathalia R. V. Dragano
- Institute of Experimental Genetics and German Mouse ClinicHelmholtz Zentrum MünchenNeuherbergGermany
- German Center for Diabetes Research (DZD)NeuherbergGermany
| | - Antonio Aguilar‐Pimentel
- Institute of Experimental Genetics and German Mouse ClinicHelmholtz Zentrum MünchenNeuherbergGermany
| | - Martin Irmler
- Institute of Experimental Genetics and German Mouse ClinicHelmholtz Zentrum MünchenNeuherbergGermany
| | - Adrián Sanz‐Moreno
- Institute of Experimental Genetics and German Mouse ClinicHelmholtz Zentrum MünchenNeuherbergGermany
| | - Patricia da Silva‐Buttkus
- Institute of Experimental Genetics and German Mouse ClinicHelmholtz Zentrum MünchenNeuherbergGermany
| | - Johannes Beckers
- Institute of Experimental Genetics and German Mouse ClinicHelmholtz Zentrum MünchenNeuherbergGermany
- German Center for Diabetes Research (DZD)NeuherbergGermany
- TUM School of Life SciencesTechnische Universität MünchenFreisingGermany
| | - Eckhard Wolf
- Institute of Molecular Animal Breeding and Biotechnology, Gene CenterLudwig‐Maximilians‐University MünchenMunichGermany
| | - Valerie Gailus‐Durner
- Institute of Experimental Genetics and German Mouse ClinicHelmholtz Zentrum MünchenNeuherbergGermany
| | - Helmut Fuchs
- Institute of Experimental Genetics and German Mouse ClinicHelmholtz Zentrum MünchenNeuherbergGermany
| | - Martin Hrabe de Angelis
- Institute of Experimental Genetics and German Mouse ClinicHelmholtz Zentrum MünchenNeuherbergGermany
- German Center for Diabetes Research (DZD)NeuherbergGermany
- TUM School of Life SciencesTechnische Universität MünchenFreisingGermany
| | | | | | - Dimitry N. Krementsov
- Department of Biomedical and Health SciencesUniversity of VermontBurlingtonVermontUSA
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35
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Engin A. Lipid Storage, Lipolysis, and Lipotoxicity in Obesity. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2024; 1460:97-129. [PMID: 39287850 DOI: 10.1007/978-3-031-63657-8_4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/19/2024]
Abstract
The ratio of free fatty acid (FFA) turnover decreases significantly with the expansion of white adipose tissue. Adipose tissue and dietary saturated fatty acid levels significantly correlate with an increase in fat cell size and number. The G0/G1 switch gene 2 increases lipid content in adipocytes and promotes adipocyte hypertrophy through the restriction of triglyceride (triacylglycerol: TAG) turnover. Hypoxia in obese adipose tissue due to hypertrophic adipocytes results in excess deposition of extracellular matrix (ECM) components. Cluster of differentiation (CD) 44, as the main receptor of the extracellular matrix component regulates cell-cell and cell-matrix interactions including diet-induced insulin resistance. Excess TAGs, sterols, and sterol esters are surrounded by the phospholipid monolayer surface and form lipid droplets (LDs). Once LDs are formed, they grow up because of the excessive amount of intracellular FFA stored and reach a final size. The ratio of FFA turnover/lipolysis decreases significantly with increases in the degree of obesity. Dysfunctional adipose tissue is unable to expand further to store excess dietary lipids, increased fluxes of plasma FFAs lead to ectopic fatty acid deposition and lipotoxicity. Reduced neo-adipogenesis and dysfunctional lipid-overloaded adipocytes are hallmarks of hypertrophic obesity linked to insulin resistance. Obesity-associated adipocyte death exhibits feature of necrosis-like programmed cell death. Adipocyte death is a prerequisite for the transition from hypertrophic to hyperplastic obesity. Increased adipocyte number in obesity has life-long effects on white adipose tissue mass. The positive correlation between the adipose tissue volume and magnetic resonance imaging proton density fat fraction estimation is used for characterization of the obesity phenotype, as well as the risk stratification and selection of appropriate treatment strategies. In obese patients with type 2 diabetes, visceral adipocytes exposed to chronic/intermittent hyperglycemia develop a new microRNAs' (miRNAs') expression pattern. Visceral preadipocytes memorize the effect of hyperglycemia via changes in miRNAs' expression profile and contribute to the progression of diabetic phenotype. Nonsteroidal anti-inflammatory drugs, metformin, and statins can be beneficial in treating the local or systemic consequences of white adipose tissue inflammation. Rapamycin inhibits leptin-induced LD formation. Collectively, in this chapter, the concept of adipose tissue remodeling in response to adipocyte death or adipogenesis, and the complexity of LD interactions with the other cellular organelles are reviewed. Furthermore, clinical perspective of fat cell turnover in obesity is also debated.
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Affiliation(s)
- Atilla Engin
- Faculty of Medicine, Department of General Surgery, Gazi University, Besevler, Ankara, Turkey.
- Mustafa Kemal Mah. 2137. Sok. 8/14, 06520, Cankaya, Ankara, Turkey.
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Ruhl T, Sessler TM, Keimes JM, Beier JP, Villwock S, Rose M, Dahl E. ITIH5 inhibits proliferation, adipogenic differentiation, and secretion of inflammatory cytokines of human adipose stem cells-A new key in treating obesity? FASEB J 2024; 38:e23352. [PMID: 38095340 DOI: 10.1096/fj.202301366r] [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: 07/06/2023] [Revised: 10/26/2023] [Accepted: 11/21/2023] [Indexed: 12/18/2023]
Abstract
Inter-α-trypsin inhibitor heavy chain 5 (ITIH5) is widely expressed in the human body, and it is detected to be particularly abundant in adipose tissue. ITIH5 expression is increased in people with obesity compared to lean persons and is decreased by diet-induced weight loss. This suggests that ITIH5 may be involved in the development of adiposity and clinical metabolic variables, although its exact function remains unknown. We measured the protein concentration of ITIH5 in adipose samples from patients undergoing abdominoplasty and tested for correlation with the subjects' BMI as well as inflammatory mediators. We stimulated human adipose stem cells (ASCs) with recombinant (r)ITIH5 protein and tested for an effect on proliferation, differentiation, and immunosuppressive properties when the cells were exposed to an artificial inflammatory environment. We found positive correlations between ITIH5 levels and the BMI (p < .001) as well as concentrations of inflammatory cytokines (TNF-α, IL-6, and MCP-1) in adipose tissue (p < .01). Application of the rITIH5 protein inhibited both proliferation (p < .001) and differentiation of ASCs. Especially, the development of mature adipocytes was reduced by over 50%. Moreover, rITIH5 decreased the release of IL-6 and MCP-1 when the cells were exposed to TNF-α and IL-1β (p < .001). Our data suggest that ITIH5 is an adipokine that is increasingly released during human adipose tissue development, acting as a regulator that inhibits proliferation and adipogenic differentiation of ASCs. ITIH5 thus presents itself as a positive regulator of adipose tissue homeostasis, possibly protecting against both hyperplasia and hypertrophy of adipose tissue and the associated chronic inflammation.
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Affiliation(s)
- Tim Ruhl
- Department of Plastic Surgery, Hand Surgery-Burn Center, University Hospital RWTH Aachen, Aachen, Germany
| | - Thomas M Sessler
- Department of Plastic Surgery, Hand Surgery-Burn Center, University Hospital RWTH Aachen, Aachen, Germany
| | - Jana M Keimes
- Department of Plastic Surgery, Hand Surgery-Burn Center, University Hospital RWTH Aachen, Aachen, Germany
| | - Justus P Beier
- Department of Plastic Surgery, Hand Surgery-Burn Center, University Hospital RWTH Aachen, Aachen, Germany
| | - Sophia Villwock
- Institute of Pathology, University Hospital RWTH Aachen, Aachen, Germany
| | - Michael Rose
- Institute of Pathology, University Hospital RWTH Aachen, Aachen, Germany
| | - Edgar Dahl
- Institute of Pathology, University Hospital RWTH Aachen, Aachen, Germany
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37
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Wang X, Li N, Zheng M, Yu Y, Zhang S. Acetylation and deacetylation of histone in adipocyte differentiation and the potential significance in cancer. Transl Oncol 2024; 39:101815. [PMID: 37935080 PMCID: PMC10654249 DOI: 10.1016/j.tranon.2023.101815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Revised: 10/17/2023] [Accepted: 10/22/2023] [Indexed: 11/09/2023] Open
Abstract
Adipocytes are derived from pluripotent mesenchymal stem cells and can develop into several cell types including adipocytes, myocytes, chondrocytes, and osteocytes. Adipocyte differentiation is regulated by a variety of transcription factors and signaling pathways. Various epigenetic factors, particularly histone modifications, play key roles in adipocyte differentiation and have indispensable functions in altering chromatin conformation. Histone acetylases and deacetylases participate in the regulation of protein acetylation, mediate transcriptional and post-translational modifications, and directly acetylate or deacetylate various transcription factors and regulatory proteins. The adipocyte differentiation of stem cells plays a key role in various metabolic diseases. Cancer stem cells(CSCs) play an important function in cancer metastasis, recurrence, and drug resistance, and have the characteristics of stem cells. They are expressed in various cell lineages, including adipocytes. Recent studies have shown that cancer stem cells that undergo epithelial-mesenchymal transformation can undergo adipocytic differentiation, thereby reducing the degree of malignancy. This opens up new possibilities for cancer treatment. This review summarizes the regulation of acetylation during adipocyte differentiation, involving the functions of histone acetylating and deacetylating enzymes as well as non-histone acetylation modifications. Mechanistic studies on adipogenesis and acetylation during the differentiation of cancer cells into a benign cell phenotype may help identify new targets for cancer treatment.
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Affiliation(s)
- Xiaorui Wang
- Department of Pathology, Tianjin Union Medical Center, Nankai University, Tianjin 300121, China; Graduate School, Tianjin Medical University, Tianjin 300070, China
| | - Na Li
- Department of Pathology, Tianjin Union Medical Center, Nankai University, Tianjin 300121, China; Graduate School, Tianjin Medical University, Tianjin 300070, China
| | - Minying Zheng
- Department of Pathology, Tianjin Union Medical Center, Nankai University, Tianjin 300121, China
| | - Yongjun Yu
- Department of Pathology, Tianjin Union Medical Center, Nankai University, Tianjin 300121, China
| | - Shiwu Zhang
- Department of Pathology, Tianjin Union Medical Center, Nankai University, Tianjin 300121, China.
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Zhong S, Du X, Gao J, Ji G, Liu Z. BMP8B Activates Both SMAD2/3 and NF-κB Signals to Inhibit the Differentiation of 3T3-L1 Preadipocytes into Mature Adipocytes. Nutrients 2023; 16:64. [PMID: 38201894 PMCID: PMC10780770 DOI: 10.3390/nu16010064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 12/14/2023] [Accepted: 12/16/2023] [Indexed: 01/12/2024] Open
Abstract
Bone morphogenetic protein 8B (BMP8B) has been found to regulate the thermogenesis of brown adipose tissue (BAT) and the browning process of white adipose tissue (WAT). However, there is no available information regarding the role of BMP8B in the process of adipocyte differentiation. Here, we showed that BMP8B down-regulates transcriptional regulators PPARγ and C/EBPα, thereby impeding the differentiation of 3T3-L1 preadipocytes into fully mature adipocytes. BMP8B increased the phosphorylation levels of SMAD2/3, and TP0427736 HCl (SMAD2/3 inhibitor) significantly reduced the ability of BMP8B to inhibit adipocyte differentiation, suggesting that BMP8B repressed adipocyte differentiation through the SMAD2/3 pathway. Moreover, the knockdown of BMP I receptor ALK4 significantly reduced the inhibitory effect of BMP8B on adipogenesis, indicating that BMP8B triggers SMAD2/3 signaling to suppress adipogenesis via ALK4. In addition, BMP8B activated the NF-κB signal, which has been demonstrated to impede PPARγ expression. Collectively, our data demonstrated that BMP8B activates both SMAD2/3 and NF-κB signals to inhibit adipocyte differentiation. We provide previously unidentified insight into BMP8B-mediated adipogenesis.
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Affiliation(s)
- Shenjie Zhong
- College of Marine Life Sciences, Institute of Evolution & Marine Biodiversity, Ocean University of China, Qingdao 266003, China; (S.Z.); (X.D.); (J.G.); (G.J.)
| | - Xueqing Du
- College of Marine Life Sciences, Institute of Evolution & Marine Biodiversity, Ocean University of China, Qingdao 266003, China; (S.Z.); (X.D.); (J.G.); (G.J.)
| | - Jing Gao
- College of Marine Life Sciences, Institute of Evolution & Marine Biodiversity, Ocean University of China, Qingdao 266003, China; (S.Z.); (X.D.); (J.G.); (G.J.)
| | - Guangdong Ji
- College of Marine Life Sciences, Institute of Evolution & Marine Biodiversity, Ocean University of China, Qingdao 266003, China; (S.Z.); (X.D.); (J.G.); (G.J.)
- Laoshan Laboratory, Qingdao 266237, China
| | - Zhenhui Liu
- College of Marine Life Sciences, Institute of Evolution & Marine Biodiversity, Ocean University of China, Qingdao 266003, China; (S.Z.); (X.D.); (J.G.); (G.J.)
- Laoshan Laboratory, Qingdao 266237, China
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39
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Zhang W, Zhao M, Xin L, Qi X, Cao P, Wang J, Li X. Bioinformatics-based identification and validation of hub genes associated with aging in patients with coronary artery disease. Aging (Albany NY) 2023; 15:14830-14844. [PMID: 38097358 PMCID: PMC10781473 DOI: 10.18632/aging.205309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Accepted: 11/02/2023] [Indexed: 01/07/2024]
Abstract
Coronary artery disease (CAD) is the most common aging-related disease in adults. We used bioinformatics analysis to study genes associated with aging in patients with CAD. The microarray data of the GSE12288 dataset were downloaded from the Gene Expression Omnibus database to obtain 934 CAD-associated differentially expressed genes. By overlaying them with aging-related genes in the Aging Atlas database, 33 differentially expressed aging-related genes (DEARGs) were identified. Gene Ontology and Kyoto Encyclopedia of Genes and Genomes enrichment analyses revealed that the 33 DEARGs were mainly enriched in cell adhesion and activation, Th17 and Th1/Th2 cell differentiation, and longevity regulation pathways. Hub genes were further screened using multiple algorithms of Cytoscape software and validation set GSE71226. Clinical samples were then collected, and the expression of hub genes in whole blood was detected by real-time quantitative polymerase chain reaction, enzyme-linked immunosorbent assay, and western blot at the transcription and translation levels. Finally, HSP90AA1 and CEBPA were identified as hub genes. The results of this study suggest that HSP90AA1 and CEBPA are closely related to CAD. These findings provide a theoretical basis for the association between aging effectors and CAD, and indicate that these genes may be promising biomarkers for the diagnosis and treatment of CAD.
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Affiliation(s)
- Wangmeng Zhang
- Department of Obstetrics, The Affiliated Tai’an City Central Hospital of Qingdao University, Tai’an 271000, Shandong, China
| | - Minmin Zhao
- Department of Obstetrics, The Affiliated Tai’an City Central Hospital of Qingdao University, Tai’an 271000, Shandong, China
| | - Li Xin
- Department of Cardiology, The Affiliated Tai’an City Central Hospital of Qingdao University, Tai’an 271000, Shandong, China
| | - Ximei Qi
- Department of Cardiology, The Affiliated Tai’an City Central Hospital of Qingdao University, Tai’an 271000, Shandong, China
| | - Ping Cao
- Department of Geriatrics, The Affiliated Tai’an City Central Hospital of Qingdao University, Tai’an 271000, Shandong, China
| | - Jiyan Wang
- Department of Internal Medicine, The Fourth People's Hospital of Tai’an City, Tai’an 271000, Shandong, China
| | - Xin Li
- Department of Obstetrics, Tai’an Maternal and Child Health Care Hospital, Tai’an 271000, Shandong, China
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40
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Ryu SW, Moon JC, Oh BS, Yu SY, Bak JE, Heo ES, Jeong JH, Lee JH. Anti-obesity activity of human gut microbiota Bacteroides stercoris KGMB02265. Arch Microbiol 2023; 206:19. [PMID: 38086977 DOI: 10.1007/s00203-023-03750-2] [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: 09/15/2023] [Revised: 11/16/2023] [Accepted: 11/16/2023] [Indexed: 12/18/2023]
Abstract
Obesity is a global health threat that causes various complications such as type 2 diabetes and nonalcoholic fatty liver disease. Gut microbiota is closely related to obesity. In particular, a higher Firmicutes to Bacteroidetes ratio has been reported as a biomarker of obesity, suggesting that the phylum Bacteroidetes may play a role in inhibiting obesity. Indeed, the genus Bacteroides was enriched in the healthy subjects based on metagenome analysis. In this study, we determined the effects of Bacteroides stercoris KGMB02265, a species belonging to the phylum Bacteroidetes, on obesity both in vitro and in vivo. The cell-free supernatant of B. stercoris KGMB02265 inhibited lipid accumulation in 3T3-L1 preadipocytes, in which the expression of adipogenic marker genes was repressed. In vivo study showed that the oral administration of B. stercoris KGMB02265 substantially reduced body weight and fat weight in high-fat diet induced obesity in mice. Furthermore, obese mice orally administered with B. stercoris KGMB02265 restored glucose sensitivity and reduced leptin and triglyceride levels. Taken together, our study reveals that B. stercoris KGMB02265 has anti-obesity activity and suggests that it may be a promising candidate for treating obesity.
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Affiliation(s)
- Seoung Woo Ryu
- Korean Collection for Type Cultures, Biological Resource Center, Institute of Bioscience and Biotechnology, Jeongeup, 56212, Republic of Korea
- BioMedical Sciences Graduate Program, Chonnam National University, Hwasun, 58128, Republic of Korea
| | - Jeong Chan Moon
- National Institute of Ecology, Yeongyang, 36531, Republic of Korea
| | - Byeong Seob Oh
- Korean Collection for Type Cultures, Biological Resource Center, Institute of Bioscience and Biotechnology, Jeongeup, 56212, Republic of Korea
| | - Seung Yeob Yu
- Korean Collection for Type Cultures, Biological Resource Center, Institute of Bioscience and Biotechnology, Jeongeup, 56212, Republic of Korea
- BioMedical Sciences Graduate Program, Chonnam National University, Hwasun, 58128, Republic of Korea
| | - Jeong Eun Bak
- Korean Collection for Type Cultures, Biological Resource Center, Institute of Bioscience and Biotechnology, Jeongeup, 56212, Republic of Korea
- BioMedical Sciences Graduate Program, Chonnam National University, Hwasun, 58128, Republic of Korea
| | - Eun Seo Heo
- Korean Collection for Type Cultures, Biological Resource Center, Institute of Bioscience and Biotechnology, Jeongeup, 56212, Republic of Korea
- University of Science and Technology (UST), Daejeon, 34113, Republic of Korea
| | - Jae-Ho Jeong
- BioMedical Sciences Graduate Program, Chonnam National University, Hwasun, 58128, Republic of Korea.
| | - Ju Huck Lee
- Korean Collection for Type Cultures, Biological Resource Center, Institute of Bioscience and Biotechnology, Jeongeup, 56212, Republic of Korea.
- University of Science and Technology (UST), Daejeon, 34113, Republic of Korea.
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41
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Kim G, Lee J, Ha J, Kang I, Choe W. Endoplasmic Reticulum Stress and Its Impact on Adipogenesis: Molecular Mechanisms Implicated. Nutrients 2023; 15:5082. [PMID: 38140341 PMCID: PMC10745682 DOI: 10.3390/nu15245082] [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: 10/28/2023] [Revised: 11/30/2023] [Accepted: 12/09/2023] [Indexed: 12/24/2023] Open
Abstract
Endoplasmic reticulum (ER) stress plays a pivotal role in adipogenesis, which encompasses the differentiation of adipocytes and lipid accumulation. Sustained ER stress has the potential to disrupt the signaling of the unfolded protein response (UPR), thereby influencing adipogenesis. This comprehensive review illuminates the molecular mechanisms that underpin the interplay between ER stress and adipogenesis. We delve into the dysregulation of UPR pathways, namely, IRE1-XBP1, PERK and ATF6 in relation to adipocyte differentiation, lipid metabolism, and tissue inflammation. Moreover, we scrutinize how ER stress impacts key adipogenic transcription factors such as proliferator-activated receptor γ (PPARγ) and CCAAT-enhancer-binding proteins (C/EBPs) along with their interaction with other signaling pathways. The cellular ramifications include alterations in lipid metabolism, dysregulation of adipokines, and aged adipose tissue inflammation. We also discuss the potential roles the molecular chaperones cyclophilin A and cyclophilin B play in adipogenesis. By shedding light on the intricate relationship between ER stress and adipogenesis, this review paves the way for devising innovative therapeutic interventions.
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Affiliation(s)
- Gyuhui Kim
- Department of Biomedical Science, Graduate School, Kyung Hee University, Seoul 02447, Republic of Korea; (G.K.); (J.H.); (I.K.)
- Department of Biochemistry and Molecular Biology, School of Medicine, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Jiyoon Lee
- Department of Biological Sciences, Franklin College of Arts and Sciences, University of Georgia, Athens, GA 30609, USA;
| | - Joohun Ha
- Department of Biomedical Science, Graduate School, Kyung Hee University, Seoul 02447, Republic of Korea; (G.K.); (J.H.); (I.K.)
- Department of Biochemistry and Molecular Biology, School of Medicine, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Insug Kang
- Department of Biomedical Science, Graduate School, Kyung Hee University, Seoul 02447, Republic of Korea; (G.K.); (J.H.); (I.K.)
- Department of Biochemistry and Molecular Biology, School of Medicine, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Wonchae Choe
- Department of Biomedical Science, Graduate School, Kyung Hee University, Seoul 02447, Republic of Korea; (G.K.); (J.H.); (I.K.)
- Department of Biochemistry and Molecular Biology, School of Medicine, Kyung Hee University, Seoul 02447, Republic of Korea
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Lecoutre S, Maqdasy S, Lambert M, Breton C. The Impact of Maternal Obesity on Adipose Progenitor Cells. Biomedicines 2023; 11:3252. [PMID: 38137473 PMCID: PMC10741630 DOI: 10.3390/biomedicines11123252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Revised: 12/01/2023] [Accepted: 12/05/2023] [Indexed: 12/24/2023] Open
Abstract
The concept of Developmental Origin of Health and Disease (DOHaD) postulates that adult-onset metabolic disorders may originate from suboptimal conditions during critical embryonic and fetal programming windows. In particular, nutritional disturbance during key developmental stages may program the set point of adiposity and its associated metabolic diseases later in life. Numerous studies in mammals have reported that maternal obesity and the resulting accelerated growth in neonates may affect adipocyte development, resulting in persistent alterations in adipose tissue plasticity (i.e., adipocyte proliferation and storage) and adipocyte function (i.e., insulin resistance, impaired adipokine secretion, reduced thermogenesis, and higher inflammation) in a sex- and depot-specific manner. Over recent years, adipose progenitor cells (APCs) have been shown to play a crucial role in adipose tissue plasticity, essential for its development, maintenance, and expansion. In this review, we aim to provide insights into the developmental timeline of lineage commitment and differentiation of APCs and their role in predisposing individuals to obesity and metabolic diseases. We present data supporting the possible implication of dysregulated APCs and aberrant perinatal adipogenesis through epigenetic mechanisms as a primary mechanism responsible for long-lasting adipose tissue dysfunction in offspring born to obese mothers.
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Affiliation(s)
- Simon Lecoutre
- Nutrition and Obesities: Systemic Approach Research Group, Nutriomics, Sorbonne Université, INSERM, F-75013 Paris, France
| | - Salwan Maqdasy
- Department of Medicine (H7), Karolinska Institutet Hospital, C2-94, 14186 Stockholm, Sweden;
| | - Mélanie Lambert
- U978 Institut National de la Santé et de la Recherche Médicale, F-93022 Bobigny, France;
- Université Sorbonne Paris Nord, Alliance Sorbonne Paris Cité, Labex Inflamex, F-93000 Bobigny, France
| | - Christophe Breton
- Maternal Malnutrition and Programming of Metabolic Diseases, Université de Lille, EA4489, F-59000 Lille, France
- U1283-UMR8199-EGID, Université de Lille, INSERM, CNRS, CHU Lille, Institut Pasteur de Lille, F-59000 Lille, France
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Tie F, Hu N, Dong Q, Wang H. Vitisin A-13-O-β-D-glucoside and Vitisin A from Iris lactea inhibit lipogenesis and promote lipolysis via the PKA/HSL pathway during adipogenic transdifferentiation of C2C12 cells. Eur J Pharmacol 2023; 960:176154. [PMID: 37884183 DOI: 10.1016/j.ejphar.2023.176154] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 10/13/2023] [Accepted: 10/23/2023] [Indexed: 10/28/2023]
Abstract
Oligostilbenes are a group of natural products derived from the polymerization of stilbene monomers. Despite the demonstration of their activities in regulating lipid metabolism, the function of oligostilbenes in the adipogenic transdifferentiation of multipotent myoblast cells remains unknown. Hence, the five oligostilbenes from Iris lactea were tested for their regulatory effects on adipogenic transdifferentiation of C2C12 myoblast cells. As a result, it was shown that Vitisin A-13-O-β-D-glucoside (VitAOG), Vitisin A (VitA) and Hopeaphenol (Hop) can greatly inhibit the adipogenic transdifferentiation of C2C12 cells by reducing lipid accumulation and downregulating the expression of peroxisome proliferator-activated receptor gamma (PPARγ), CCAAT/enhancer binding protein beta (C/EBPβ) and fatty acid binding proteins 4 (FABP4). In contrast, Vitisin D (VitD) and Isohopeaphenol (Isohop) promote adipogenic transdifferentiation of C2C12 cells by increasing lipid accumulation and upregulating the expression of adipogenesis and lipogenesis markers. Further research found that the lipolytic protein levels of adipocyte triglyceride lipase (ATGL) and phosphorylation of hormone-sensitive lipase (HSL) were elevated by VitAOG and VitA. Additionally, VitAOG and VitA maintain lipid homeostasis by improving mitochondrial function. Taken together, our study reveals an effect of oligostilbenes on lipid metabolism in C2C12 cells, and VitAOG and VitA can be regarded as potential candidates for the treatment of obesity and other disorders of lipid metabolism.
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Affiliation(s)
- Fangfang Tie
- CAS Key Laboratory of Tibetan Medicine Research, Qinghai Provincial Key Laboratory of Tibetan Medicine Research, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, 810008, China.
| | - Na Hu
- CAS Key Laboratory of Tibetan Medicine Research, Qinghai Provincial Key Laboratory of Tibetan Medicine Research, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, 810008, China.
| | - Qi Dong
- CAS Key Laboratory of Tibetan Medicine Research, Qinghai Provincial Key Laboratory of Tibetan Medicine Research, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, 810008, China.
| | - Honglun Wang
- CAS Key Laboratory of Tibetan Medicine Research, Qinghai Provincial Key Laboratory of Tibetan Medicine Research, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, 810008, China.
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44
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Fasciano S, Luo S, Wang S. Long non-coding RNA (lncRNA) MALAT1 in regulating osteogenic and adipogenic differentiation using a double-stranded gapmer locked nucleic acid nanobiosensor. Analyst 2023; 148:6261-6273. [PMID: 37937546 DOI: 10.1039/d3an01531a] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2023]
Abstract
Long non-coding RNAs (lncRNA) are non-protein coding RNA molecules that are longer than 200 nucleotides. The lncRNA molecule plays diverse roles in gene regulation, chromatin remodeling, and cellular processes, influencing various biological pathways. However, probing the complex dynamics of lncRNA in live cells is a challenging task. In this study, a double-stranded gapmer locked nucleic acid (ds-GapM-LNA) nanobiosensor is designed for visualizing the abundance and expression of lncRNA in live human bone-marrow-derived mesenchymal stem cells (hMSCs). The sensitivity, specificity, and stability were characterized. The results showed that this ds-GapM-LNA nanobiosensor has very good sensitivity, specificity, and stability, which allows for dissecting the regulatory roles of cellular processes during dynamic physiological events. By incorporating this nanobiosensor in living hMSC imaging, we elucidated lncRNA MALAT1 expression dynamics during osteogenic and adipogenic differentiation. The data reveal that lncRNA MALAT1 expression is correlated with distinct sub-stages of osteogenic and adipogenic differentiation.
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Affiliation(s)
- Samantha Fasciano
- Department of Chemistry, Chemical and Biomedical Engineering, Tagliatela College of Engineering, University of New Haven, West Haven, CT, 06516, USA.
- Department of Cellular and Molecular Biology, College of Art and Science, University of New Haven, West Haven, CT, 06516, USA
| | - Shuai Luo
- Department of Chemistry, Chemical and Biomedical Engineering, Tagliatela College of Engineering, University of New Haven, West Haven, CT, 06516, USA.
| | - Shue Wang
- Department of Chemistry, Chemical and Biomedical Engineering, Tagliatela College of Engineering, University of New Haven, West Haven, CT, 06516, USA.
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45
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Carvalho GB, Brandão-Lima PN, Payolla TB, Lucena SEF, Sarti FM, Fisberg RM, Rogero MM. Circulating MiRNAs Are Associated With Low-grade Systemic Inflammation and Leptin Levels in Older Adults. Inflammation 2023; 46:2132-2146. [PMID: 37464054 DOI: 10.1007/s10753-023-01867-6] [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: 05/10/2023] [Revised: 06/17/2023] [Accepted: 06/27/2023] [Indexed: 07/20/2023]
Abstract
Inflammaging refers to the low-grade systemic inflammation that occurs with aging present in chronic non-communicable diseases. MicroRNAs (miRNAs) are potential biomarkers for these diseases in older adults. This study aimed to assess the expression of 21 circulating miRNAs and their associations with inflammatory biomarkers in older adults. This cross-sectional study was performed with 200 individuals participating in ISA-Nutrition. The systemic low-grade inflammation score (SIS) was calculated from the plasma concentration of 10 inflammatory biomarkers. Circulating miRNA expression was assessed using the Fluidigm method. Wilcoxon-Mann-Whitney test was employed to determine differences in SIS among groups distributed according to sex and presence of MetS. Spearman's correlation was used to estimate correlations among SIS, leptin levels, miRNA expression, and variables of interest. Analyses were performed using software R version 4.2.3, with a significance level of 0.05. The final sample consisted of 193 individuals with a mean age of 69.1 (SE = 0.5) years, being 64.7% individuals with metabolic syndrome (MetS). Positive correlations were observed between leptin concentration and metabolic risk factors, and leptin concentration was higher in individuals with MetS compared to those without MetS. The expression of 15 circulating miRNAs was negatively correlated with leptin concentration. GLMs showed negative associations between miRNAs (miR-15a, miR-16, miR-223, miR-363, miR-532), leptin, and/or SIS values; and only miR-21 showed positive association with SIS values. The results suggest the presence of peripheral leptin resistance associated with low-grade inflammation and plasma expression of miRNAs in older adults. These findings suggest the potential role of miRNAs as biomarkers for cardiometabolic risk.
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Affiliation(s)
- Gabrielli B Carvalho
- Department of Nutrition, School of Public Health, University of São Paulo, 715 Dr. Arnaldo Avenue, São Paulo, SP, 01246-904, Brazil
| | - Paula N Brandão-Lima
- Department of Nutrition, School of Public Health, University of São Paulo, 715 Dr. Arnaldo Avenue, São Paulo, SP, 01246-904, Brazil
| | - Tanyara B Payolla
- Department of Nutrition, School of Public Health, University of São Paulo, 715 Dr. Arnaldo Avenue, São Paulo, SP, 01246-904, Brazil
| | - Sadraque E F Lucena
- Department of Statistics and Actuarial Sciences, Federal University of Sergipe, Marechal Rondon Avenue, São Cristóvão, SE, 49100-000, Brazil
| | - Flávia M Sarti
- School of Arts, Sciences and Humanities, University of São Paulo, 1000 Arlindo Bettio Avenue, São Paulo, SP, 03828-000, Brazil
| | - Regina M Fisberg
- Department of Nutrition, School of Public Health, University of São Paulo, 715 Dr. Arnaldo Avenue, São Paulo, SP, 01246-904, Brazil
| | - Marcelo M Rogero
- Department of Nutrition, School of Public Health, University of São Paulo, 715 Dr. Arnaldo Avenue, São Paulo, SP, 01246-904, Brazil.
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46
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Sun L, Ji S, Xie X, Si L, Liu S, Lin Y, Wang Y, Song Z, Fang N, An Y, Yang J. Deciphering the interaction between Twist1 and PPARγ during adipocyte differentiation. Cell Death Dis 2023; 14:764. [PMID: 37996425 PMCID: PMC10667345 DOI: 10.1038/s41419-023-06283-0] [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: 07/04/2023] [Revised: 11/01/2023] [Accepted: 11/07/2023] [Indexed: 11/25/2023]
Abstract
Obesity, a worldwide epidemic in recent years, is mainly due to the uncontrolled development of adipose tissues, which includes adipocyte hypertrophy and hyperplasia. Adipocyte differentiation is a process involving multiple transcription factor cascades, and the exact mechanism has not yet been defined. As a bHLH transcription factor, Twist1 exerts its activity by forming homo- or heterodimers with other factors. In this study, we showed Twist1 restricts adipogenesis through PPARγ. Expression of various differentiation markers (including PPARγ and adiponectin) and triglyceride-containing lipid droplets were decreased with overexpression of Twist1. Pathway enrichment analysis of RNA-seq data showed that differentially expressed genes (DEGs) caused by Twist1 overexpression were significantly related to lipolysis and PPARγ signaling. This implicates that Twist1 plays important regulatory roles in these processes. ChIP and dual luciferase assays showed that Twist1 could bind either PPARγ or adiponectin promoter to repress their respective transcription or directly to PPARγ protein to regulate its transcriptional activity. Furthermore, Twist1 directly interacted RXRα, which usually forms heterodimer with PPARγ to regulate adipogenesis. Taken together, our results suggest that Twist1 is an inhibitory modulator of adipogenesis and its function is likely through direct interaction with PPARγ protein or its gene promoter.
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Affiliation(s)
- Leilei Sun
- School of Basic Medical Sciences, Henan University, Kaifeng, 475004, China
- Department of Biochemistry and Molecular Biology, Cell Signal Transduction Laboratory, School of Basic Medical Science, Bioinformatics Center, Henan University, Kaifeng, 475004, China
- College of Pharmacy and Nutrition, University of Saskatchewan, Saskatoon, SK, S7N 5E5, Canada
| | - Shaoping Ji
- School of Basic Medical Sciences, Henan University, Kaifeng, 475004, China
- Department of Biochemistry and Molecular Biology, Cell Signal Transduction Laboratory, School of Basic Medical Science, Bioinformatics Center, Henan University, Kaifeng, 475004, China
| | - Xuan Xie
- School of Basic Medical Sciences, Henan University, Kaifeng, 475004, China
| | - Lei Si
- School of Basic Medical Sciences, Henan University, Kaifeng, 475004, China
- Department of Biochemistry and Molecular Biology, Cell Signal Transduction Laboratory, School of Basic Medical Science, Bioinformatics Center, Henan University, Kaifeng, 475004, China
| | - Shaohao Liu
- School of Basic Medical Sciences, Henan University, Kaifeng, 475004, China
- Department of Biochemistry and Molecular Biology, Cell Signal Transduction Laboratory, School of Basic Medical Science, Bioinformatics Center, Henan University, Kaifeng, 475004, China
| | - Yao Lin
- School of Basic Medical Sciences, Henan University, Kaifeng, 475004, China
- Department of Biochemistry and Molecular Biology, Cell Signal Transduction Laboratory, School of Basic Medical Science, Bioinformatics Center, Henan University, Kaifeng, 475004, China
| | - Yahui Wang
- School of Basic Medical Sciences, Henan University, Kaifeng, 475004, China
- Department of Biochemistry and Molecular Biology, Cell Signal Transduction Laboratory, School of Basic Medical Science, Bioinformatics Center, Henan University, Kaifeng, 475004, China
| | - Zhenhua Song
- School of Basic Medical Sciences, Henan University, Kaifeng, 475004, China
- Department of Biochemistry and Molecular Biology, Cell Signal Transduction Laboratory, School of Basic Medical Science, Bioinformatics Center, Henan University, Kaifeng, 475004, China
| | - Na Fang
- School of Basic Medical Sciences, Henan University, Kaifeng, 475004, China
- Department of Biochemistry and Molecular Biology, Cell Signal Transduction Laboratory, School of Basic Medical Science, Bioinformatics Center, Henan University, Kaifeng, 475004, China
| | - Yang An
- School of Basic Medical Sciences, Henan University, Kaifeng, 475004, China.
- Department of Biochemistry and Molecular Biology, Cell Signal Transduction Laboratory, School of Basic Medical Science, Bioinformatics Center, Henan University, Kaifeng, 475004, China.
| | - Jian Yang
- College of Pharmacy and Nutrition, University of Saskatchewan, Saskatoon, SK, S7N 5E5, Canada.
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Liu Y, He T, Li Z, Sun Z, Wang S, Shen H, Hou L, Li S, Wei Y, Zhuo B, Li S, Zhou C, Guo H, Zhang R, Li B. TET2 is recruited by CREB to promote Cebpb, Cebpa, and Pparg transcription by facilitating hydroxymethylation during adipocyte differentiation. iScience 2023; 26:108312. [PMID: 38026190 PMCID: PMC10663734 DOI: 10.1016/j.isci.2023.108312] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Revised: 08/10/2023] [Accepted: 10/20/2023] [Indexed: 12/01/2023] Open
Abstract
Ten-eleven translocation proteins (TETs) are dioxygenases that convert 5-methylcytosine (5mC) to 5-hydroxymethylcytosine (5hmC), an important epigenetic mark that regulates gene expression during development and differentiation. Here, we found that the TET2 expression was positively associated with adipogenesis. Further, in vitro and in vivo experiments showed that TET2 deficiency blocked adipogenesis by inhibiting the expression of the key transcription factors CCAAT/enhancer-binding protein beta (C/EBPβ), C/EBPα and peroxisome proliferator-activated receptor gamma (PPARγ). In addition, TET2 promoted 5hmC on the CpG islands (CGIs) of Cebpb, Cebpa and Pparg at the initial time point of their transcription, which requires the cAMP-responsive element-binding protein (CREB). At last, specific knockout of Tet2 in preadipocytes enabled mice to resist obesity and attenuated the obesity-associated insulin resistance. Together, TET2 is recruited by CREB to promote the expression of Cebpb, Cebpa and Pparg via 5hmC during adipogenesis and may be a potential therapeutic target for obesity and insulin resistance.
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Affiliation(s)
- Yunjia Liu
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Signaling Network and Engineering Research Center of Molecular Diagnostics of the Ministry of Education, School of Life Sciences, Xiamen University, Xiamen, Fujian 361100, China
| | - Ting He
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Signaling Network and Engineering Research Center of Molecular Diagnostics of the Ministry of Education, School of Life Sciences, Xiamen University, Xiamen, Fujian 361100, China
| | - Zhuofang Li
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Signaling Network and Engineering Research Center of Molecular Diagnostics of the Ministry of Education, School of Life Sciences, Xiamen University, Xiamen, Fujian 361100, China
| | - Zhen Sun
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Signaling Network and Engineering Research Center of Molecular Diagnostics of the Ministry of Education, School of Life Sciences, Xiamen University, Xiamen, Fujian 361100, China
| | - Shuai Wang
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Signaling Network and Engineering Research Center of Molecular Diagnostics of the Ministry of Education, School of Life Sciences, Xiamen University, Xiamen, Fujian 361100, China
- Department of Cardiology, Xiamen Key Laboratory of Cardiac Electrophysiology, Xiamen Institute of Cardiovascular Diseases, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, China
| | - Huanming Shen
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Signaling Network and Engineering Research Center of Molecular Diagnostics of the Ministry of Education, School of Life Sciences, Xiamen University, Xiamen, Fujian 361100, China
| | - Lingfeng Hou
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Signaling Network and Engineering Research Center of Molecular Diagnostics of the Ministry of Education, School of Life Sciences, Xiamen University, Xiamen, Fujian 361100, China
| | - Shengnan Li
- School of Medicine, Henan Polytechnic University, Jiaozuo, Henan 454000, China
| | - Yixin Wei
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Signaling Network and Engineering Research Center of Molecular Diagnostics of the Ministry of Education, School of Life Sciences, Xiamen University, Xiamen, Fujian 361100, China
| | - Bingzhao Zhuo
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Signaling Network and Engineering Research Center of Molecular Diagnostics of the Ministry of Education, School of Life Sciences, Xiamen University, Xiamen, Fujian 361100, China
| | - Shanni Li
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Signaling Network and Engineering Research Center of Molecular Diagnostics of the Ministry of Education, School of Life Sciences, Xiamen University, Xiamen, Fujian 361100, China
| | - Can Zhou
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Signaling Network and Engineering Research Center of Molecular Diagnostics of the Ministry of Education, School of Life Sciences, Xiamen University, Xiamen, Fujian 361100, China
| | - Huiling Guo
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Signaling Network and Engineering Research Center of Molecular Diagnostics of the Ministry of Education, School of Life Sciences, Xiamen University, Xiamen, Fujian 361100, China
| | - Rui Zhang
- Xiamen Cell Therapy Research Center, the First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, Fujian 361003, China
| | - Boan Li
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Signaling Network and Engineering Research Center of Molecular Diagnostics of the Ministry of Education, School of Life Sciences, Xiamen University, Xiamen, Fujian 361100, China
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Boubertakh B, Courtemanche O, Marsolais D, Di Marzo V, Silvestri C. New role for the anandamide metabolite prostaglandin F 2α ethanolamide: Rolling preadipocyte proliferation. J Lipid Res 2023; 64:100444. [PMID: 37730163 PMCID: PMC10622703 DOI: 10.1016/j.jlr.2023.100444] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2023] [Revised: 08/24/2023] [Accepted: 09/11/2023] [Indexed: 09/22/2023] Open
Abstract
White adipose tissue regulation is key to metabolic health, yet still perplexing. The chief endocannabinoid anandamide metabolite, prostaglandin F2α ethanolamide (PGF2αEA), inhibits adipogenesis, that is, the formation of mature adipocytes. We observed that adipocyte progenitor cells-preadipocytes-following treatment with PGF2αEA yielded larger pellet sizes. Thus, we hypothesized that PGF2αEA might augment preadipocyte proliferation. Cell viability MTT and crystal violet assays, cell counting, and 5-bromo-2'-deoxyuridine incorporation in cell proliferation ELISA analyses confirmed our prediction. Additionally, we discovered that PGF2αEA promotes cell cycle progression through suppression of the expression of cell cycle inhibitors, p21 and p27, as shown by flow cytometry and qPCR. Enticingly, concentrations of this compound that showed no visible effect on cell proliferation or basal transcriptional activity of peroxisome proliferator-activated receptor gamma could, in contrast, reverse the anti-proliferative and peroxisome proliferator-activated receptor gamma-transcription activating effects of rosiglitazone (Rosi). MTT and luciferase reporter examinations supported this finding. The PGF2αEA pharmaceutical analog, bimatoprost, was also investigated and showed very similar effects. Importantly, we suggest the implication of the mitogen-activated protein kinase pathway in these effects, as they were blocked by the selective mitogen-activated protein kinase kinase inhibitor, PD98059. We propose that PGF2αEA is a pivotal regulator of white adipose tissue plasticity, acting as a regulator of the preadipocyte pool in adipose tissue.
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Affiliation(s)
- Besma Boubertakh
- Centre de Recherche de l'Institut Universitaire de Cardiologie et de Pneumologie de Québec (CRIUCPQ), Département de médecine, Faculté de Médecine, Université Laval, Québec, Canada; Institut sur la Nutrition et les Aliments Fonctionnels (INAF), Centre NUTRISS, Université Laval, Québec, Canada; Canada Excellence Research Chair on the Microbiome-Endocannabinoidome Axis in Metabolic Health (CERC-MEND), Université Laval, Québec, Canada
| | - Olivier Courtemanche
- Centre de Recherche de l'Institut Universitaire de Cardiologie et de Pneumologie de Québec (CRIUCPQ), Département de médecine, Faculté de Médecine, Université Laval, Québec, Canada
| | - David Marsolais
- Centre de Recherche de l'Institut Universitaire de Cardiologie et de Pneumologie de Québec (CRIUCPQ), Département de médecine, Faculté de Médecine, Université Laval, Québec, Canada
| | - Vincenzo Di Marzo
- Centre de Recherche de l'Institut Universitaire de Cardiologie et de Pneumologie de Québec (CRIUCPQ), Département de médecine, Faculté de Médecine, Université Laval, Québec, Canada; Institut sur la Nutrition et les Aliments Fonctionnels (INAF), Centre NUTRISS, Université Laval, Québec, Canada; Canada Excellence Research Chair on the Microbiome-Endocannabinoidome Axis in Metabolic Health (CERC-MEND), Université Laval, Québec, Canada; École de Nutrition, Faculté des Sciences de l'Agriculture et de l'Alimentation (FSAA), Université Laval, Québec, Canada
| | - Cristoforo Silvestri
- Centre de Recherche de l'Institut Universitaire de Cardiologie et de Pneumologie de Québec (CRIUCPQ), Département de médecine, Faculté de Médecine, Université Laval, Québec, Canada; Institut sur la Nutrition et les Aliments Fonctionnels (INAF), Centre NUTRISS, Université Laval, Québec, Canada; Canada Excellence Research Chair on the Microbiome-Endocannabinoidome Axis in Metabolic Health (CERC-MEND), Université Laval, Québec, Canada.
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49
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Pan X, Ye L, Guo X, Wang W, Zhang Z, Wang Q, Huang J, Xu J, Cai Y, Shou X, Wang Y, Feng Y, Xie C, Shan P, Meng ZX. Glutamine Production by Glul Promotes Thermogenic Adipocyte Differentiation Through Prdm9-Mediated H3K4me3 and Transcriptional Reprogramming. Diabetes 2023; 72:1574-1596. [PMID: 37579296 DOI: 10.2337/db23-0162] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/26/2023] [Accepted: 08/09/2023] [Indexed: 08/16/2023]
Abstract
Thermogenic adipocytes have been extensively investigated because of their energy-dissipating property and therapeutic potential for obesity and diabetes. Besides serving as fuel sources, accumulating evidence suggests that intermediate metabolites play critical roles in multiple biological processes. However, their role in adipocyte differentiation and thermogenesis remains unexplored. Here, we report that human and mouse obesity is associated with marked downregulation of glutamine synthetase (Glul) expression and activity in thermogenic adipose tissues. Glul is robustly upregulated during brown adipocyte (BAC) differentiation and in brown adipose tissue (BAT) upon cold exposure and Cl316,243 stimulation. Further genetic, pharmacologic, or metabolic manipulations of Glul and glutamine levels reveal that glutamine cells autonomously stimulate BAC differentiation and function and BAT remodeling and improve systemic energy homeostasis in mice. Mechanistically, glutamine promotes transcriptional induction of adipogenic and thermogenic gene programs through histone modification-mediated chromatin remodeling. Among all the glutamine-regulated writer and eraser genes responsible for histone methylation and acetylation, only Prdm9, a histone lysine methyltransferase, is robustly induced during BAC differentiation. Importantly, Prdm9 inactivation by shRNA knockdown or a selective inhibitor attenuates glutamine-triggered adipogenic and thermogenic induction. Furthermore, Prdm9 gene transcription is regulated by glutamine through the recruitment of C/EBPb to its enhancer region. This work reveals glutamine as a novel activator of thermogenic adipocyte differentiation and uncovers an unexpected role of C/EBPb-Prdm9-mediated H3K4me3 and transcriptional reprogramming in adipocyte differentiation and thermogenesis. ARTICLE HIGHLIGHTS
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Affiliation(s)
- Xiaowen Pan
- Department of Pathology and Pathophysiology and Department of Cardiology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
- Key Laboratory of Disease Proteomics of Zhejiang Province, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Lingxia Ye
- Department of Endocrinology and Metabolism, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Xiaozhen Guo
- State Key Laboratory of Drug Research, Shanghai Institute of Material Medical, Chinese Academy of Sciences, Shanghai, China
| | - Weihua Wang
- Department of Pathology and Pathophysiology and Department of Cardiology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
- Key Laboratory of Disease Proteomics of Zhejiang Province, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Ziyin Zhang
- Department of Pathology and Pathophysiology and Department of Cardiology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
- Key Laboratory of Disease Proteomics of Zhejiang Province, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Qintao Wang
- Department of Pathology and Pathophysiology and Department of Cardiology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
- Key Laboratory of Disease Proteomics of Zhejiang Province, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Jingjing Huang
- Department of Endocrinology and Metabolism, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Jingya Xu
- Department of Pathology and Pathophysiology and Department of Cardiology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
- Key Laboratory of Disease Proteomics of Zhejiang Province, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Yanhan Cai
- Department of Endocrinology and Metabolism, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Xinxin Shou
- Department of Pathology and Pathophysiology and Department of Cardiology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Yuting Wang
- Department of Endocrinology, The Second Affiliated Hospital of Soochow University, Suzhou, China
| | - Yu Feng
- Department of Endocrinology, The Second Affiliated Hospital of Soochow University, Suzhou, China
| | - Cen Xie
- State Key Laboratory of Drug Research, Shanghai Institute of Material Medical, Chinese Academy of Sciences, Shanghai, China
| | - Pengfei Shan
- Department of Endocrinology and Metabolism, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Zhuo-Xian Meng
- Department of Pathology and Pathophysiology and Department of Cardiology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
- Key Laboratory of Disease Proteomics of Zhejiang Province, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
- Department of Geriatrics, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
- Chronic Disease Research Institute, Zhejiang University School of Public Health, Hangzhou, China
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50
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Jung J, Kim NH, Kwon M, Park J, Lim D, Kim Y, Gil W, Cheong YH, Park SA. The inhibitory effect of Gremlin-2 on adipogenesis suppresses breast cancer cell growth and metastasis. Breast Cancer Res 2023; 25:128. [PMID: 37880751 PMCID: PMC10599028 DOI: 10.1186/s13058-023-01732-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Accepted: 10/17/2023] [Indexed: 10/27/2023] Open
Abstract
BACKGROUND Gremlin-1 (GREM1) and Gremlin-2 (GREM2) are bone morphogenetic protein antagonists that play important roles in organogenesis, tissue differentiation, and tissue homeostasis. Although GREM1 has been reported to be involved in promoting various cancers, little has been reported about effects of GREM2 on cancer. Recently, it has been reported that GREM2 can inhibit adipogenesis in adipose-derived stromal/stem cells. However, as an inhibitor of adipogenesis, the role of GREM2 in cancer progression is not well understood yet. METHODS Pre-adipocyte 3T3-L1 cells overexpressing mock or Grem2 were established using a lentiviral transduction system and differentiated into adipocytes-mock and adipocytes-Grem2, respectively. To investigate the effect of adipocyte-Grem2 on breast cancer cells, we analyzed the proliferative and invasion abilities of spheroids using a 3D co-culture system of breast cancer cells and adipocytes or conditioned medium (CM) of adipocytes. An orthotopic breast cancer mouse model was used to examine the role of adipocytes-Grem2 in breast cancer progression. RESULTS Grem2 overexpression suppressed adipogenesis of 3T3-L1 cells. Proliferative and invasion abilities of spheroids formed by co-culturing MTV/TM-011 breast cancer cells and adipocytes-Grem2 were significantly reduced compared to those of spheroids formed by co-culturing MTV/TM-011 cells and adipocytes-mock. Compared to adipocytes-mock, adipocytes-Grem2 showed decreased mRNA expression of several adipokines, notably IL-6. The concentration of IL-6 in the CM of these cells was also decreased. Proliferative and invasive abilities of breast cancer cells reduced by adipocytes-Grem2 were restored by IL-6 treatment. Expression levels of vimentin, slug, and twist1 in breast cancer cells were decreased by treatment with CM of adipocytes-Grem2 but increased by IL-6 treatment. In orthotopic breast cancer mouse model, mice injected with both MTV/TM-011 cells and adipocytes-Grem2 showed smaller primary tumors and lower lung metastasis than controls. However, IL-6 administration increased both the size of primary tumor and the number of metastatic lung lesions, which were reduced by adipocytes-Grem2. CONCLUSIONS Our study suggests that GREM2 overexpression in adipocytes can inhibit adipogenesis, reduce the expression and secretion of several adipokines, including IL-6, and ultimately inhibit breast cancer progression.
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Affiliation(s)
- Jiwoo Jung
- Department of Medical Sciences, Graduate School, Soonchunhyang University, Asan-si, 31538, Republic of Korea
| | - Na Hui Kim
- Department of Medical Sciences, Graduate School, Soonchunhyang University, Asan-si, 31538, Republic of Korea
| | - Minji Kwon
- Department of Medical Sciences, Graduate School, Soonchunhyang University, Asan-si, 31538, Republic of Korea
| | - Jayeon Park
- Department of Biomedical Laboratory Science, College of Medical Sciences, Soonchunhyang University, Asan-si, 31538, Republic of Korea
| | - Dayeon Lim
- Department of Biomedical Laboratory Science, College of Medical Sciences, Soonchunhyang University, Asan-si, 31538, Republic of Korea
| | - Youjin Kim
- Department of Biomedical Laboratory Science, College of Medical Sciences, Soonchunhyang University, Asan-si, 31538, Republic of Korea
| | - World Gil
- Department of Biomedical Laboratory Science, College of Medical Sciences, Soonchunhyang University, Asan-si, 31538, Republic of Korea
| | - Ye Hwang Cheong
- Drug Discovery Research Laboratories, Dong-A ST Co., Ltd., Yongin, 17073, Republic of Korea
| | - Sin-Aye Park
- Department of Medical Sciences, Graduate School, Soonchunhyang University, Asan-si, 31538, Republic of Korea.
- Department of Biomedical Laboratory Science, College of Medical Sciences, Soonchunhyang University, Asan-si, 31538, Republic of Korea.
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