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Gou Y, Huang Y, Luo W, Li Y, Zhao P, Zhong J, Dong X, Guo M, Li A, Hao A, Zhao G, Wang Y, Zhu Y, Zhang H, Shi Y, Wagstaff W, Luu HH, Shi LL, Reid RR, He TC, Fan J. Adipose-derived mesenchymal stem cells (MSCs) are a superior cell source for bone tissue engineering. Bioact Mater 2024; 34:51-63. [PMID: 38186960 PMCID: PMC10770370 DOI: 10.1016/j.bioactmat.2023.12.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 11/26/2023] [Accepted: 12/02/2023] [Indexed: 01/09/2024] Open
Abstract
Effective bone regeneration through tissue engineering requires a combination of osteogenic progenitors, osteoinductive biofactors and biocompatible scaffold materials. Mesenchymal stem cells (MSCs) represent the most promising seed cells for bone tissue engineering. As multipotent stem cells that can self-renew and differentiate into multiple lineages including bone and fat, MSCs can be isolated from numerous tissues and exhibit varied differentiation potential. To identify an optimal progenitor cell source for bone tissue engineering, we analyzed the proliferative activity and osteogenic potential of four commonly-used mouse MSC sources, including immortalized mouse embryonic fibroblasts (iMEF), immortalized mouse bone marrow stromal stem cells (imBMSC), immortalized mouse calvarial mesenchymal progenitors (iCAL), and immortalized mouse adipose-derived mesenchymal stem cells (iMAD). We found that iMAD exhibited highest osteogenic and adipogenic capabilities upon BMP9 stimulation in vitro, whereas iMAD and iCAL exhibited highest osteogenic capability in BMP9-induced ectopic osteogenesis and critical-sized calvarial defect repair. Transcriptomic analysis revealed that, while each MSC line regulated a distinct set of target genes upon BMP9 stimulation, all MSC lines underwent osteogenic differentiation by regulating osteogenesis-related signaling including Wnt, TGF-β, PI3K/AKT, MAPK, Hippo and JAK-STAT pathways. Collectively, our results demonstrate that adipose-derived MSCs represent optimal progenitor sources for cell-based bone tissue engineering.
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Affiliation(s)
- Yannian Gou
- Ministry of Education Key Laboratory of Diagnostic Medicine, and Department of Clinical Biochemistry, School of Laboratory Medicine, Chongqing Medical University, Chongqing, 400016, China
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL, 60637, USA
| | - Yanran Huang
- Ministry of Education Key Laboratory of Diagnostic Medicine, and Department of Clinical Biochemistry, School of Laboratory Medicine, Chongqing Medical University, Chongqing, 400016, China
- Departments of Orthopedic Surgery and Urology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
| | - Wenping Luo
- Laboratory Animal Center, Southwest University, Chongqing, 400715, China
| | - Yanan Li
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, The Stomatological Hospital of Chongqing Medical University, Chongqing, 401147, China
| | - Piao Zhao
- Ministry of Education Key Laboratory of Diagnostic Medicine, and Department of Clinical Biochemistry, School of Laboratory Medicine, Chongqing Medical University, Chongqing, 400016, China
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL, 60637, USA
- Departments of Orthopedic Surgery and Urology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
| | - Jiamin Zhong
- Ministry of Education Key Laboratory of Diagnostic Medicine, and Department of Clinical Biochemistry, School of Laboratory Medicine, Chongqing Medical University, Chongqing, 400016, China
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL, 60637, USA
| | - Xiangyu Dong
- Ministry of Education Key Laboratory of Diagnostic Medicine, and Department of Clinical Biochemistry, School of Laboratory Medicine, Chongqing Medical University, Chongqing, 400016, China
| | - Meichun Guo
- Ministry of Education Key Laboratory of Diagnostic Medicine, and Department of Clinical Biochemistry, School of Laboratory Medicine, Chongqing Medical University, Chongqing, 400016, China
| | - Aohua Li
- Ministry of Education Key Laboratory of Diagnostic Medicine, and Department of Clinical Biochemistry, School of Laboratory Medicine, Chongqing Medical University, Chongqing, 400016, China
| | - Ailing Hao
- Ministry of Education Key Laboratory of Diagnostic Medicine, and Department of Clinical Biochemistry, School of Laboratory Medicine, Chongqing Medical University, Chongqing, 400016, China
| | - Guozhi Zhao
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL, 60637, USA
- Departments of Orthopedic Surgery and Urology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
| | - Yonghui Wang
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL, 60637, USA
- Department of Geriatrics, Xinhua Hospital, Shanghai Jiao-Tong University School of Medicine, Shanghai, 200000, China
| | - Yi Zhu
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL, 60637, USA
- Department of Orthopaedic Surgery, Beijing Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100730, China
| | - Hui Zhang
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL, 60637, USA
- The Breast Cancer Center, Chongqing University Cancer Hospital, Chongqing, 4000430, China
| | - Yunhan Shi
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL, 60637, USA
- Department of Psychology, School of Arts and Sciences, University of Rochester, Rochester, NY, 14627, USA
- Department of Surgery, The University of Chicago Medical Center, Chicago, IL, 60637, USA
| | - William Wagstaff
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL, 60637, USA
| | - Hue H. Luu
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL, 60637, USA
| | - Lewis L. Shi
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL, 60637, USA
| | - Russell R. Reid
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL, 60637, USA
- Laboratory of Craniofacial Biology and Development, Department of Surgery Section of Plastic Surgery, The University of Chicago Medical Center, Chicago, IL, 60637, USA
| | - Tong-Chuan He
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL, 60637, USA
- Laboratory of Craniofacial Biology and Development, Department of Surgery Section of Plastic Surgery, The University of Chicago Medical Center, Chicago, IL, 60637, USA
| | - Jiaming Fan
- Ministry of Education Key Laboratory of Diagnostic Medicine, and Department of Clinical Biochemistry, School of Laboratory Medicine, Chongqing Medical University, Chongqing, 400016, China
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Zhong J, Wang H, Yang K, Wang H, Duan C, Ni N, An L, Luo Y, Zhao P, Gou Y, Sheng S, Shi D, Chen C, Wagstaff W, Hendren-Santiago B, Haydon RC, Luu HH, Reid RR, Ho SH, Ameer GA, Shen L, He TC, Fan J. Reversibly immortalized keratinocytes (iKera) facilitate re-epithelization and skin wound healing: Potential applications in cell-based skin tissue engineering. Bioact Mater 2022; 9:523-540. [PMID: 34820586 PMCID: PMC8581279 DOI: 10.1016/j.bioactmat.2021.07.022] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Revised: 07/09/2021] [Accepted: 07/19/2021] [Indexed: 12/15/2022] Open
Abstract
Skin injury is repaired through a multi-phase wound healing process of tissue granulation and re-epithelialization. Any failure in the healing process may lead to chronic non-healing wounds or abnormal scar formation. Although significant progress has been made in developing novel scaffolds and/or cell-based therapeutic strategies to promote wound healing, effective management of large chronic skin wounds remains a clinical challenge. Keratinocytes are critical to re-epithelialization and wound healing. Here, we investigated whether exogenous keratinocytes, in combination with a citrate-based scaffold, enhanced skin wound healing. We first established reversibly immortalized mouse keratinocytes (iKera), and confirmed that the iKera cells expressed keratinocyte markers, and were responsive to UVB treatment, and were non-tumorigenic. In a proof-of-principle experiment, we demonstrated that iKera cells embedded in citrate-based scaffold PPCN provided more effective re-epithelialization and cutaneous wound healing than that of either PPCN or iKera cells alone, in a mouse skin wound model. Thus, these results demonstrate that iKera cells may serve as a valuable skin epithelial source when, combining with appropriate biocompatible scaffolds, to investigate cutaneous wound healing and skin regeneration.
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Affiliation(s)
- Jiamin Zhong
- Ministry of Education Key Laboratory of Diagnostic Medicine, And Department of Clinical Biochemistry, School of Laboratory Medicine, Chongqing Medical University, Chongqing, 400016, China
| | - Hao Wang
- Ministry of Education Key Laboratory of Diagnostic Medicine, And Department of Clinical Biochemistry, School of Laboratory Medicine, Chongqing Medical University, Chongqing, 400016, China
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL, 60637, USA
| | - Ke Yang
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL, 60637, USA
- The Pediatric Research Institute, The Children's Hospital of Chongqing Medical University, Chongqing, 400014, China
| | - Huifeng Wang
- Biomedical Engineering Department, Northwestern University, Evanston, IL, 60208, USA
| | - Chongwen Duan
- Biomedical Engineering Department, Northwestern University, Evanston, IL, 60208, USA
| | - Na Ni
- Ministry of Education Key Laboratory of Diagnostic Medicine, And Department of Clinical Biochemistry, School of Laboratory Medicine, Chongqing Medical University, Chongqing, 400016, China
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL, 60637, USA
| | - Liqin An
- Ministry of Education Key Laboratory of Diagnostic Medicine, And Department of Clinical Biochemistry, School of Laboratory Medicine, Chongqing Medical University, Chongqing, 400016, China
| | - Yetao Luo
- Ministry of Education Key Laboratory of Diagnostic Medicine, And Department of Clinical Biochemistry, School of Laboratory Medicine, Chongqing Medical University, Chongqing, 400016, China
| | - Piao Zhao
- Ministry of Education Key Laboratory of Diagnostic Medicine, And Department of Clinical Biochemistry, School of Laboratory Medicine, Chongqing Medical University, Chongqing, 400016, China
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL, 60637, USA
| | - Yannian Gou
- Ministry of Education Key Laboratory of Diagnostic Medicine, And Department of Clinical Biochemistry, School of Laboratory Medicine, Chongqing Medical University, Chongqing, 400016, China
| | - Shiyan Sheng
- Ministry of Education Key Laboratory of Diagnostic Medicine, And Department of Clinical Biochemistry, School of Laboratory Medicine, Chongqing Medical University, Chongqing, 400016, China
| | - Deyao Shi
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL, 60637, USA
- Department of Orthopaedics, Union Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Connie Chen
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL, 60637, USA
| | - William Wagstaff
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL, 60637, USA
| | - Bryce Hendren-Santiago
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL, 60637, USA
| | - Rex C. Haydon
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL, 60637, USA
| | - Hue H. Luu
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL, 60637, USA
| | - Russell R. Reid
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL, 60637, USA
- Department of Surgery, The University of Chicago Medical Center, Chicago, IL, 60637, USA
- Center for Advanced Regenerative Engineering (CARE), Evanston, IL, 60208, USA
| | - Sherwin H. Ho
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL, 60637, USA
| | - Guillermo A. Ameer
- Biomedical Engineering Department, Northwestern University, Evanston, IL, 60208, USA
- Center for Advanced Regenerative Engineering (CARE), Evanston, IL, 60208, USA
- Department of Surgery, Northwestern University Feinberg School of Medicine, Chicago, IL, 60616, USA
| | - Le Shen
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL, 60637, USA
- Department of Surgery, The University of Chicago Medical Center, Chicago, IL, 60637, USA
| | - Tong-Chuan He
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL, 60637, USA
- Department of Surgery, The University of Chicago Medical Center, Chicago, IL, 60637, USA
- Center for Advanced Regenerative Engineering (CARE), Evanston, IL, 60208, USA
| | - Jiaming Fan
- Ministry of Education Key Laboratory of Diagnostic Medicine, And Department of Clinical Biochemistry, School of Laboratory Medicine, Chongqing Medical University, Chongqing, 400016, China
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL, 60637, USA
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Zahmatkesh E, Ghanian MH, Zarkesh I, Farzaneh Z, Halvaei M, Heydari Z, Moeinvaziri F, Othman A, Ruoß M, Piryaei A, Gramignoli R, Yakhkeshi S, Nüssler A, Najimi M, Baharvand H, Vosough M. Tissue-Specific Microparticles Improve Organoid Microenvironment for Efficient Maturation of Pluripotent Stem-Cell-Derived Hepatocytes. Cells 2021; 10:1274. [PMID: 34063948 PMCID: PMC8224093 DOI: 10.3390/cells10061274] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2021] [Revised: 05/18/2021] [Accepted: 05/19/2021] [Indexed: 12/16/2022] Open
Abstract
Liver organoids (LOs) are receiving considerable attention for their potential use in drug screening, disease modeling, and transplantable constructs. Hepatocytes, as the key component of LOs, are isolated from the liver or differentiated from pluripotent stem cells (PSCs). PSC-derived hepatocytes are preferable because of their availability and scalability. However, efficient maturation of the PSC-derived hepatocytes towards functional units in LOs remains a challenging subject. The incorporation of cell-sized microparticles (MPs) derived from liver extracellular matrix (ECM), could provide an enriched tissue-specific microenvironment for further maturation of hepatocytes inside the LOs. In the present study, the MPs were fabricated by chemical cross-linking of a water-in-oil dispersion of digested decellularized sheep liver. These MPs were mixed with human PSC-derived hepatic endoderm, human umbilical vein endothelial cells, and mesenchymal stromal cells to produce homogenous bioengineered LOs (BLOs). This approach led to the improvement of hepatocyte-like cells in terms of gene expression and function, CYP activities, albumin secretion, and metabolism of xenobiotics. The intraperitoneal transplantation of BLOs in an acute liver injury mouse model led to an enhancement in survival rate. Furthermore, efficient hepatic maturation was demonstrated after ex ovo transplantation. In conclusion, the incorporation of cell-sized tissue-specific MPs in BLOs improved the maturation of human PSC-derived hepatocyte-like cells compared to LOs. This approach provides a versatile strategy to produce functional organoids from different tissues and offers a novel tool for biomedical applications.
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Affiliation(s)
- Ensieh Zahmatkesh
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran 1665659911, Iran; (E.Z.); (Z.F.); (Z.H.); (F.M.); (S.Y.)
- Department of Developmental Biology, University of Science and Culture, Tehran 1665659911, Iran
| | - Mohammad Hossein Ghanian
- Department of Cell Engineering, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran 1665659911, Iran; (M.H.G.); (I.Z.); (M.H.)
| | - Ibrahim Zarkesh
- Department of Cell Engineering, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran 1665659911, Iran; (M.H.G.); (I.Z.); (M.H.)
| | - Zahra Farzaneh
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran 1665659911, Iran; (E.Z.); (Z.F.); (Z.H.); (F.M.); (S.Y.)
| | - Majid Halvaei
- Department of Cell Engineering, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran 1665659911, Iran; (M.H.G.); (I.Z.); (M.H.)
| | - Zahra Heydari
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran 1665659911, Iran; (E.Z.); (Z.F.); (Z.H.); (F.M.); (S.Y.)
- Department of Developmental Biology, University of Science and Culture, Tehran 1665659911, Iran
| | - Farideh Moeinvaziri
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran 1665659911, Iran; (E.Z.); (Z.F.); (Z.H.); (F.M.); (S.Y.)
- Department of Developmental Biology, University of Science and Culture, Tehran 1665659911, Iran
| | - Amnah Othman
- Department of Traumatology, Siegfried Weller Institute, University of Tübingen, 72076 Tübingen, Germany; (A.O.); (M.R.); (A.N.)
| | - Marc Ruoß
- Department of Traumatology, Siegfried Weller Institute, University of Tübingen, 72076 Tübingen, Germany; (A.O.); (M.R.); (A.N.)
| | - Abbas Piryaei
- Department of Tissue Engineering and Applied Cell Sciences, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran 1985717443, Iran;
- Department of Biology and Anatomical Sciences, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran 1985717443, Iran
| | - Roberto Gramignoli
- Division of Pathology, Department of Laboratory Medicine, Karolinska Institutet, 17177 Stockholm, Sweden;
| | - Saeed Yakhkeshi
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran 1665659911, Iran; (E.Z.); (Z.F.); (Z.H.); (F.M.); (S.Y.)
| | - Andreas Nüssler
- Department of Traumatology, Siegfried Weller Institute, University of Tübingen, 72076 Tübingen, Germany; (A.O.); (M.R.); (A.N.)
| | - Mustapha Najimi
- Laboratory of Pediatric Hepatology and Cell Therapy, Institute of Experimental & Clinical Research, Université Catholique de Louvain, B-1200 Brussels, Belgium
| | - Hossein Baharvand
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran 1665659911, Iran; (E.Z.); (Z.F.); (Z.H.); (F.M.); (S.Y.)
- Department of Developmental Biology, University of Science and Culture, Tehran 1665659911, Iran
| | - Massoud Vosough
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran 1665659911, Iran; (E.Z.); (Z.F.); (Z.H.); (F.M.); (S.Y.)
- Department of Regenerative Medicine, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran 1665659911, Iran
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Peng Q, Chen B, Wang H, Zhu Y, Wu J, Luo Y, Zuo G, Luo J, Zhou L, Shi Q, Weng Y, Huang A, He TC, Fan J. Bone morphogenetic protein 4 (BMP4) alleviates hepatic steatosis by increasing hepatic lipid turnover and inhibiting the mTORC1 signaling axis in hepatocytes. Aging (Albany NY) 2019; 11:11520-11540. [PMID: 31831718 PMCID: PMC6932923 DOI: 10.18632/aging.102552] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2019] [Accepted: 11/19/2019] [Indexed: 02/06/2023]
Abstract
Liver has numerous critical metabolic functions including lipid metabolism, which is usually dysregulated in obesity, the metabolic syndrome, and non-alcoholic fatty liver disease (NAFLD). Increasing evidence indicates bone morphogenetic proteins (BMPs) play an important role in adipogenesis and thermogenic balance in adipogenic progenitors and adipose tissue. However, the direct impact of BMPs on hepatic steatosis and possible association with NAFLD are poorly understood. Here, we found that BMP4 was up-regulated in oleic acid-induced steatosis and during the development of high fat diet (HFD)-induced NAFLD. Exogenous BMP4 reduced lipid accumulation and up-regulated the genes involved in lipid synthesis, storage and breakdown in hepatocytes. Exogenous BMP4 inhibited hepatic steatosis, reduced serum triglyceride levels and body weight, and alleviated progression of NAFLD in vivo. Mechanistically, BMP4 overexpression in hepatocytes down-regulated most components of the mTORC1 signaling axis. Collectively, these findings strongly suggest that BMP4 may play an essential role in regulating hepatic lipid metabolism and the molecular pathogenesis of NAFLD. Manipulating BMP4 and/or mTORC1 signaling axis may lead to the development of novel therapeutics for obesity, metabolic syndrome, and NAFLD.
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Affiliation(s)
- Qi Peng
- Ministry of Education Key Laboratory of Diagnostic Medicine, and School of Laboratory Medicine, Chongqing Medical University, Chongqing 400016, China
| | - Bin Chen
- Ministry of Education Key Laboratory of Diagnostic Medicine, and School of Laboratory Medicine, Chongqing Medical University, Chongqing 400016, China
| | - Hao Wang
- Ministry of Education Key Laboratory of Diagnostic Medicine, and School of Laboratory Medicine, Chongqing Medical University, Chongqing 400016, China
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL 60637, USA
| | - Ying Zhu
- Ministry of Education Key Laboratory of Diagnostic Medicine, and School of Laboratory Medicine, Chongqing Medical University, Chongqing 400016, China
| | - Jinghong Wu
- Ministry of Education Key Laboratory of Diagnostic Medicine, and School of Laboratory Medicine, Chongqing Medical University, Chongqing 400016, China
| | - Yetao Luo
- Clinical Epidemiology and Biostatistics Department, Department of Pediatric Research Institute, Children’s Hospital of Chongqing Medical University, Chongqing 400014, China
| | - Guowei Zuo
- Ministry of Education Key Laboratory of Diagnostic Medicine, and School of Laboratory Medicine, Chongqing Medical University, Chongqing 400016, China
| | - Jinyong Luo
- Ministry of Education Key Laboratory of Diagnostic Medicine, and School of Laboratory Medicine, Chongqing Medical University, Chongqing 400016, China
| | - Lan Zhou
- Ministry of Education Key Laboratory of Diagnostic Medicine, and School of Laboratory Medicine, Chongqing Medical University, Chongqing 400016, China
| | - Qiong Shi
- Ministry of Education Key Laboratory of Diagnostic Medicine, and School of Laboratory Medicine, Chongqing Medical University, Chongqing 400016, China
| | - Yaguang Weng
- Ministry of Education Key Laboratory of Diagnostic Medicine, and School of Laboratory Medicine, Chongqing Medical University, Chongqing 400016, China
| | - Ailong Huang
- Key Laboratory of Molecular Biology for Infectious Diseases of The Ministry of Education of China, Institute for Viral Hepatitis, Department of Infectious Diseases, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Tong-Chuan He
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL 60637, USA
| | - Jiaming Fan
- Ministry of Education Key Laboratory of Diagnostic Medicine, and School of Laboratory Medicine, Chongqing Medical University, Chongqing 400016, China
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