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Zhao Y, Xiang Q, Jiang S, Lin J, Li W. Revealing the novel metabolism-related genes in the ossification of the ligamentum flavum based on whole transcriptomic data. JOR Spine 2024; 7:e1357. [PMID: 39011365 PMCID: PMC11247397 DOI: 10.1002/jsp2.1357] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2024] [Revised: 05/10/2024] [Accepted: 07/01/2024] [Indexed: 07/17/2024] Open
Abstract
Backgrounds The ossification of the ligamentum flavum (OLF) is one of the major causes of thoracic myelopathy. Previous studies indicated there might be a potential link between metabolic disorder and pathogenesis of OLF. The aim of this study was to determine the potential role of metabolic disorder in the pathogenesis of OLF using the strict bioinformatic workflow for metabolism-related genes and experimental validation. Methods A series of bioinformatic approaches based on metabolism-related genes were conducted to compare the metabolism score between OLF tissues and normal ligamentum flavum (LF) tissues using the single sample gene set enrichment analysis. The OLF-related and metabolism-related differentially expressed genes (OMDEGs) were screened out, and the biological functions of OMDEGs were explored, including the Gene Ontology enrichment analysis, Kyoto Encyclopedia of Genes and Genomes enrichment analysis, and protein-protein interaction. The competing endogenous RNA (ceRNA) network based on pairs of miRNA-hub OMDEGs was constructed. The correlation analysis was conducted to explore the potential relationship between metabolic disorder and immunity abnormality in OLF. In the end, the cell experiments were performed to validate the roles of GBE1 and TNF-α in the osteogenic differentiation of LF cells. Results There was a significant difference of metabolism score between OLF tissues and normal LF tissues. Forty-nine OMDEGs were screened out and their biological functions were determined. The ceRNA network containing three hub OMDEGs and five differentially expressed miRNAs (DEmiRNAs) was built. The correlation analysis between hub OMDEGs and OLF-related infiltrating immune cells indicated that metabolic disorder might contribute to the OLF via altering the local immune status of LF tissues. The cell experiments determined the important roles of GBE1 expression and TNF-α in the osteogenic differentiation of LF cells. Conclusions This research, for the first time, preliminarily illustrated the vital role of metabolic disorder in the pathogenesis of OLF using strict bioinformatic algorithms and experimental validation for metabolism-related genes, which could provide new insights for investigating disease mechanism and screening effective therapeutic targets of OLF in the future.
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Affiliation(s)
- Yongzhao Zhao
- Department of OrthopaedicsPeking University Third HospitalBeijingChina
- Beijing Key Laboratory of Spinal Disease ResearchBeijingChina
- Engineering Research Center of Bone and Joint Precision MedicineMinistry of EducationBeijingChina
| | - Qian Xiang
- Department of OrthopaedicsPeking University Third HospitalBeijingChina
- Beijing Key Laboratory of Spinal Disease ResearchBeijingChina
- Engineering Research Center of Bone and Joint Precision MedicineMinistry of EducationBeijingChina
| | - Shuai Jiang
- Department of OrthopaedicsPeking University Third HospitalBeijingChina
- Beijing Key Laboratory of Spinal Disease ResearchBeijingChina
- Engineering Research Center of Bone and Joint Precision MedicineMinistry of EducationBeijingChina
| | - Jialiang Lin
- Department of OrthopaedicsPeking University Third HospitalBeijingChina
- Beijing Key Laboratory of Spinal Disease ResearchBeijingChina
- Engineering Research Center of Bone and Joint Precision MedicineMinistry of EducationBeijingChina
| | - Weishi Li
- Department of OrthopaedicsPeking University Third HospitalBeijingChina
- Beijing Key Laboratory of Spinal Disease ResearchBeijingChina
- Engineering Research Center of Bone and Joint Precision MedicineMinistry of EducationBeijingChina
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Marinelli Busilacchi E, Morsia E, Poloni A. Bone Marrow Adipose Tissue. Cells 2024; 13:724. [PMID: 38727260 PMCID: PMC11083575 DOI: 10.3390/cells13090724] [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: 03/14/2024] [Revised: 04/19/2024] [Accepted: 04/19/2024] [Indexed: 05/13/2024] Open
Abstract
Bone marrow (BM) acts as a dynamic organ within the bone cavity, responsible for hematopoiesis, skeletal remodeling, and immune system control. Bone marrow adipose tissue (BMAT) was long simply considered a filler of space, but now it is known that it instead constitutes an essential element of the BM microenvironment that participates in homeostasis, influences bone health and bone remodeling, alters hematopoietic stem cell functions, contributes to the commitment of mesenchymal stem cells, provides effects to immune homeostasis and defense against infections, and participates in energy metabolism and inflammation. BMAT has emerged as a significant contributor to the development and progression of various diseases, shedding light on its complex relationship with health. Notably, BMAT has been implicated in metabolic disorders, hematological malignancies, and skeletal conditions. BMAT has been shown to support the proliferation of tumor cells in acute myeloid leukemia and niche adipocytes have been found to protect cancer cells against chemotherapy, contributing to treatment resistance. Moreover, BMAT's impact on bone density and remodeling can lead to conditions like osteoporosis, where high levels of BMAT are inversely correlated with bone mineral density, increasing the risk of fractures. BMAT has also been associated with diabetes, obesity, and anorexia nervosa, with varying effects on individuals depending on their weight and health status. Understanding the interaction between adipocytes and different diseases may lead to new therapeutic strategies.
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Affiliation(s)
- Elena Marinelli Busilacchi
- Hematology Laboratory, Department of Clinical and Molecular Sciences, DISCLIMO, Università Politecnica delle Marche, 60126 Ancona, Italy; (E.M.B.); (E.M.)
| | - Erika Morsia
- Hematology Laboratory, Department of Clinical and Molecular Sciences, DISCLIMO, Università Politecnica delle Marche, 60126 Ancona, Italy; (E.M.B.); (E.M.)
- Hematology, AOU delle Marche, 60126 Ancona, Italy
| | - Antonella Poloni
- Hematology Laboratory, Department of Clinical and Molecular Sciences, DISCLIMO, Università Politecnica delle Marche, 60126 Ancona, Italy; (E.M.B.); (E.M.)
- Hematology, AOU delle Marche, 60126 Ancona, Italy
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Pham DV, Nguyen TK, Nguyen BL, Kim JO, Jeong JH, Choi I, Park PH. Adiponectin restores the obesity-induced impaired immunomodulatory function of mesenchymal stromal cells via glycolytic reprogramming. Acta Pharm Sin B 2024; 14:273-291. [PMID: 38261813 PMCID: PMC10793097 DOI: 10.1016/j.apsb.2023.10.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2023] [Revised: 08/07/2023] [Accepted: 10/18/2023] [Indexed: 01/25/2024] Open
Abstract
Obesity has been known to negatively modulate the life-span and immunosuppressive potential of mesenchymal stromal cells (MSC). However, it remains unclear what drives the compromised potency of obese MSC. In this study, we examined the involvement of adiponectin, an adipose tissue-derived hormone, in obesity-induced impaired therapeutic function of MSC. Diet-induced obesity leads to a decrease in serum adiponectin, accompanied by impairment of survival and immunomodulatory effects of adipose-derived MSC (ADSC). Interestingly, priming with globular adiponectin (gAcrp) improved the immunomodulatory potential of obese ADSC. Similar effects were also observed in lean ADSC. In addition, gAcrp potentiated the therapeutic effectiveness of ADSC in a mouse model of DSS-induced colitis. Mechanistically, while obesity inhibited the glycolytic capacity of MSC, gAcrp treatment induced a metabolic shift toward glycolysis through activation of adiponectin receptor type 1/p38 MAPK/hypoxia inducible factor-1α axis. These findings suggest that activation of adiponectin signaling is a promising strategy for enhancing the therapeutic efficacy of MSC against immune-mediated disorders.
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Affiliation(s)
- Duc-Vinh Pham
- Department of Pharmacology, Hanoi University of Pharmacy, Hanoi 100000, Viet Nam
- College of Pharmacy, Yeungnam University, Gyeongsan 38541, Republic of Korea
| | - Thi-Kem Nguyen
- College of Pharmacy, Yeungnam University, Gyeongsan 38541, Republic of Korea
| | - Bao-Loc Nguyen
- College of Pharmacy, Yeungnam University, Gyeongsan 38541, Republic of Korea
| | - Jong-Oh Kim
- College of Pharmacy, Yeungnam University, Gyeongsan 38541, Republic of Korea
| | - Jee-Heon Jeong
- Department of Precision Medicine, School of Medicine, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Inho Choi
- Department of Medical Biotechnology, Yeungnam University, Gyeongsan 38541, Republic of Korea
- Research Institute of Cell Culture, Yeungnam University, Gyeongsan 38541, Republic of Korea
| | - Pil-Hoon Park
- College of Pharmacy, Yeungnam University, Gyeongsan 38541, Republic of Korea
- Research Institute of Cell Culture, Yeungnam University, Gyeongsan 38541, Republic of Korea
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4
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Xu ZH, Xiong CW, Miao KS, Yu ZT, Zhang JJ, Yu CL, Huang Y, Zhou XD. Adipokines regulate mesenchymal stem cell osteogenic differentiation. World J Stem Cells 2023; 15:502-513. [PMID: 37424950 PMCID: PMC10324509 DOI: 10.4252/wjsc.v15.i6.502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 02/26/2023] [Accepted: 04/24/2023] [Indexed: 06/26/2023] Open
Abstract
Mesenchymal stem cells (MSCs) can differentiate into various tissue cell types including bone, adipose, cartilage, and muscle. Among those, osteogenic differentiation of MSCs has been widely explored in many bone tissue engineering studies. Moreover, the conditions and methods of inducing osteogenic differentiation of MSCs are continuously advancing. Recently, with the gradual recognition of adipokines, the research on their involvement in different pathophysiological processes of the body is also deepening including lipid metabolism, inflammation, immune regulation, energy disorders, and bone homeostasis. At the same time, the role of adipokines in the osteogenic differentiation of MSCs has been gradually described more completely. Therefore, this paper reviewed the evidence of the role of adipokines in the osteogenic differentiation of MSCs, emphasizing bone formation and bone regeneration.
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Affiliation(s)
- Zhong-Hua Xu
- Department of Orthopedics, Jintan Hospital Affiliated to Jiangsu University, Changzhou 213200, Jiangsu Province, China
| | - Chen-Wei Xiong
- Department of Orthopedics, The Affiliated Changzhou Second People’s Hospital of Nanjing Medical University, Changzhou 213000, Jiangsu Province, China
- Changzhou Medical Center, Nanjing Medical University, Changzhou 213000, Jiangsu Province, China
| | - Kai-Song Miao
- Department of Orthopedics, The Affiliated Changzhou Second People’s Hospital of Nanjing Medical University, Changzhou 213000, Jiangsu Province, China
- Changzhou Medical Center, Nanjing Medical University, Changzhou 213000, Jiangsu Province, China
| | - Zhen-Tang Yu
- Department of Orthopedics, The Affiliated Changzhou Second People’s Hospital of Nanjing Medical University, Changzhou 213000, Jiangsu Province, China
- Changzhou Medical Center, Nanjing Medical University, Changzhou 213000, Jiangsu Province, China
| | - Jun-Jie Zhang
- Department of Orthopedics, The Affiliated Changzhou Second People’s Hospital of Nanjing Medical University, Changzhou 213000, Jiangsu Province, China
- Changzhou Medical Center, Nanjing Medical University, Changzhou 213000, Jiangsu Province, China
| | - Chang-Lin Yu
- Department of Orthopedics, The Affiliated Changzhou Second People’s Hospital of Nanjing Medical University, Changzhou 213000, Jiangsu Province, China
- Changzhou Medical Center, Nanjing Medical University, Changzhou 213000, Jiangsu Province, China
| | - Yong Huang
- Department of Orthopedics, The Affiliated Changzhou Second People’s Hospital of Nanjing Medical University, Changzhou 213000, Jiangsu Province, China
- Changzhou Medical Center, Nanjing Medical University, Changzhou 213000, Jiangsu Province, China
| | - Xin-Die Zhou
- Department of Orthopedics, The Affiliated Changzhou Second People’s Hospital of Nanjing Medical University, Changzhou 213000, Jiangsu Province, China
- Changzhou Medical Center, Nanjing Medical University, Changzhou 213000, Jiangsu Province, China
- Department of Orthopedics, Gonghe County Hospital of Traditional Chinese Medicine, Hainan Tibetan Autonomous Prefecture 811800, Qinghai Province, China
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Yuan W, Liu W, Zhang Y, Wang X, Xu C, Li Q, Ji P, Wang J, Feng P, Wu Y, Shen H, Wang P. Reduced APPL1 impairs osteogenic differentiation of mesenchymal stem cells by facilitating MGP expression to disrupt the BMP2 pathway in osteoporosis. J Biol Chem 2023:104823. [PMID: 37187293 DOI: 10.1016/j.jbc.2023.104823] [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: 02/23/2023] [Revised: 05/05/2023] [Accepted: 05/07/2023] [Indexed: 05/17/2023] Open
Abstract
An imbalance of human mesenchymal stem cells (MSCs) adipogenic and osteogenic differentiation plays an important role in the pathogenesis of osteoporosis. Our previous study verified that APPL1/myoferlin deficiency promotes adipogenic differentiation of mesenchymal stem cells by blocking autophagic flux in osteoporosis. However, the function of APPL1 in the osteogenic differentiation of MSCs remains unclear. This study aimed to investigate the role of APPL1 in the osteogenic differentiation of MSCs in osteoporosis and the underlying regulatory mechanism. In this study, we demonstrated the downregulation of APPL1 expression in osteoporosis patients and osteoporosis mice. The severity of clinical osteoporosis was negatively correlated with the expression of APPL1 in bone marrow MSCs. We found that APPL1 positively regulates the osteogenic differentiation of MSCs in vitro and in vivo. Moreover, RNA sequencing showed that the expression of MGP, an osteocalcin/matrix Gla family member, was significantly upregulated after APPL1 knockdown. Mechanistically, our study showed that reduced APPL1 impaired the osteogenic differentiation of mesenchymal stem cells by facilitating MGP expression to disrupt the BMP2 pathway in osteoporosis. We also evaluated the significance of APPL1 in promoting osteogenesis in a mouse model of osteoporosis. These results suggest that APPL1 may be an important target for the diagnosis and treatment of osteoporosis.
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Affiliation(s)
- Weiquan Yuan
- Department of Orthopedics, The Eighth Affiliated Hospital, Sun Yat-sen University, Shenzhen, 518000, China
| | - Wenjie Liu
- Department of Orthopedics, The Eighth Affiliated Hospital, Sun Yat-sen University, Shenzhen, 518000, China
| | - Yunhui Zhang
- Department of Orthopedics, The Eighth Affiliated Hospital, Sun Yat-sen University, Shenzhen, 518000, China
| | - Xinglang Wang
- Department of Orthopedics, The Eighth Affiliated Hospital, Sun Yat-sen University, Shenzhen, 518000, China
| | - Chenhao Xu
- Department of Orthopedics, The Eighth Affiliated Hospital, Sun Yat-sen University, Shenzhen, 518000, China
| | - Quanfeng Li
- Department of Orthopedics, The Eighth Affiliated Hospital, Sun Yat-sen University, Shenzhen, 518000, China
| | - Pengfei Ji
- Department of Orthopedics, The Eighth Affiliated Hospital, Sun Yat-sen University, Shenzhen, 518000, China
| | - Jiaxin Wang
- Department of Orthopedics, The Eighth Affiliated Hospital, Sun Yat-sen University, Shenzhen, 518000, China
| | - Pei Feng
- Center for Biotherapy, The Eighth Affiliated Hospital, Sun Yat-sen University, Shenzhen, 518000, China
| | - Yanfeng Wu
- Center for Biotherapy, The Eighth Affiliated Hospital, Sun Yat-sen University, Shenzhen, 518000, China.
| | - Huiyong Shen
- Department of Orthopedics, The Eighth Affiliated Hospital, Sun Yat-sen University, Shenzhen, 518000, China.
| | - Peng Wang
- Department of Orthopedics, The Eighth Affiliated Hospital, Sun Yat-sen University, Shenzhen, 518000, China.
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6
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Wu X, Zhu D, Shi L, Tu Q, Yu Y, Chen J. AdipoRon accelerates bone repair of calvarial defect in diet-induced obesity mice. Heliyon 2023; 9:e13975. [PMID: 36873496 PMCID: PMC9982622 DOI: 10.1016/j.heliyon.2023.e13975] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Revised: 02/15/2023] [Accepted: 02/16/2023] [Indexed: 02/27/2023] Open
Abstract
Objectives To investigate the role of AdipoRon in bone wound healing of calvaria critical-sized defects (CSD) in diet-induced obesity (DIO) mice. Materials and methods After establishing the calvaria CSD in normal-chow (NC), DIO and Adiponectin knockout (APNKO) mice, AdipoRon or vehicle was orally gavaged for 3 weeks. The bone defects were analyzed by micro-CT and H&E staining. The expression of osteogenesis-related factor in the defect area, and the chemotactic gradient of SDF-1 between bone marrow and bone defect area were further analyzed. Results AdipoRon downregulated body weight and alleviated fasting blood glucose level of DIO mice after treatment with AdipoRon in 14 and 21 days. Newly formed bone was significantly increased in the defect area of DIO and APNKO mice after treatment with AdipoRon compared with vehicle treatment. No significant difference was shown in NC mice. Furthermore, compared with NC mice, a significant decrease of BV/TV%, Tb.N value and formed bone percentage were shown in DIO and APNKO mice. The treatment with AdipoRon could reverse of decreased value and increase the newly formed bone in those mice. AdipoRon promoted col-1α expression in wound sites in DIO and APNKO mice. AdipoRon nearly quadrupled the chemotactic gradient of SDF-1 by decreasing SDF-1 expression in bone marrow and increasing it in the bone defect area in APNKO and DIO treated mice. Conclusion AdipoRon alleviates the obesity status in DIO mice with calvarial defect and increase new bone formation in calvarial defects in DIO and APNKO mice by modulating chemotactic gradient of SDF-1.
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Affiliation(s)
- Xingwen Wu
- Dept. of Dentistry, Zhongshan Hospital, Fudan University, Shanghai, China.,Division of Oral Biology, Tufts University School of Dental Medicine, Boston, USA
| | - Danting Zhu
- Department of Stomatology, Dental Center of Jing-An District, Shanghai, PR China
| | - Le Shi
- Department of Stomatology, Dental Center of Jing-An District, Shanghai, PR China
| | - Qisheng Tu
- Division of Oral Biology, Tufts University School of Dental Medicine, Boston, USA
| | - Youcheng Yu
- Dept. of Dentistry, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Jake Chen
- Division of Oral Biology, Tufts University School of Dental Medicine, Boston, USA
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7
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Yue J, Wong PCH, Zhang Y, Peng F, Griffith JF, Xu J, Xiao F, Li TK, Hung V, Qin L, Tam LS. A novel visceral adiposity index predicts bone loss in female early rheumatoid arthritis patients detected by HR-pQCT. Sci Rep 2023; 13:2471. [PMID: 36774444 PMCID: PMC9922327 DOI: 10.1038/s41598-023-29505-z] [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: 01/01/2022] [Accepted: 02/06/2023] [Indexed: 02/13/2023] Open
Abstract
The purpose of this prospective study is to compare the Chinese visceral adiposity index (CVAI) between early rheumatoid arthritis (ERA) patients and healthy controls; and to assess the relationship between CVAI and the bone microstructure using high-resolution peripheral quantitative computed tomography (HR-pQCT) in ERA patients. 104 female ERA and 100 age-, gender- and BMI-matched healthy controls were recruited for the comparison of CVAI. All ERA patients were prospectively followed for 1 year. HR-pQCT scan of the distal radius, tibia and second metacarpal head were performed at baseline and after one-year. ERA patients were divided into two sub-groups according to the median CVAI value (65.73) (low CVAI and high CVAI groups). CVAI in the ERA group was significantly higher than the controls group (p = 0.01). At baseline, the high CVAI group had a higher ESR level (p = 0.004) while the cortical volumetric bone mineral density (vBMD) was lower (at both the distal radius and tibia, all p < 0.05) compared to the low CVAI group. Linear regression analysis revealed that a higher baseline CVAI was an independent predictor of a lower cortical vBMD at month 12 (distal radius: B = - 0.626, p = 0.022, 95%CI - 1.914 to - 0.153; tibia: B = - 0.394, p = 0.003, 95%CI - 1.366 to - 0.290); and a greater reduction in trabecular vBMD (tibia: B = 0.444, p = 0.001, 95%CI 0.018-0.063; distal radius: B = 0.356, p = 0.008, 95%CI 0.403-0.063). In summary, CVAI is an independent predictor of trabecular bone loss in female patients with ERA, which may be augmented by a chronic inflammatory state in patients with visceral dysfunction of fat metabolism.Trial registration: http://Clinicaltrial.gov no: NCT01768923, 16/01/2013.
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Affiliation(s)
- Jiang Yue
- Department of Endocrinology and Metabolism, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
- Department of Medicine & Therapeutics, The Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong, China
| | - Priscilla C H Wong
- Department of Medicine & Therapeutics, The Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong, China
| | - Ying Zhang
- Department of Laboratory Medicine, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Feng Peng
- Department of Laboratory Medicine, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - James F Griffith
- Department of Imaging and Interventional Radiology, The Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong, China
| | - Jiankun Xu
- Bone Quality and Health Center, Department of Orthopedics & Traumatology, The Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong, China
| | - Fan Xiao
- Department of Imaging and Interventional Radiology, The Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong, China
| | - Tena K Li
- Department of Medicine & Therapeutics, The Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong, China
| | - Vivian Hung
- Bone Quality and Health Center, Department of Orthopedics & Traumatology, The Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong, China
| | - Ling Qin
- Bone Quality and Health Center, Department of Orthopedics & Traumatology, The Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong, China
| | - Lai-Shan Tam
- Department of Medicine & Therapeutics, The Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong, China.
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8
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Pham DV, Nguyen TK, Park PH. Adipokines at the crossroads of obesity and mesenchymal stem cell therapy. Exp Mol Med 2023; 55:313-324. [PMID: 36750692 PMCID: PMC9981593 DOI: 10.1038/s12276-023-00940-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 12/05/2022] [Accepted: 12/08/2022] [Indexed: 02/09/2023] Open
Abstract
Mesenchymal stem cell (MSC) therapy is an emerging treatment strategy to counteract metabolic syndromes, including obesity and its comorbid disorders. However, its effectiveness is challenged by various factors in the obese environment that negatively impact MSC survival and function. The identification of these detrimental factors will provide opportunities to optimize MSC therapy for the treatment of obesity and its comorbidities. Dysregulated production of adipokines, a group of cytokines and hormones derived from adipose tissue, has been postulated to play a pivotal role in the development of obesity-associated complications. Intriguingly, adipokines have also been implicated in the modulation of viability, self-renewal, proliferation, and other properties of MSC. However, the involvement of adipokine imbalance in impaired MSC functionality has not been completely understood. On the other hand, treatment of obese individuals with MSC can restore the serum adipokine profile, suggesting the bidirectionality of the adipokine-MSC relationship. In this review, we aim to discuss the current knowledge on the central role of adipokines in the crosstalk between obesity and MSC dysfunction. We also summarize recent advances in the use of MSC for the treatment of obesity-associated diseases to support the hypothesis that adipokines modulate the benefits of MSC therapy in obese patients.
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Affiliation(s)
- Duc-Vinh Pham
- College of Pharmacy, Yeungnam University, Gyeongsan, Republic of Korea
| | - Thi-Kem Nguyen
- College of Pharmacy, Yeungnam University, Gyeongsan, Republic of Korea
| | - Pil-Hoon Park
- College of Pharmacy, Yeungnam University, Gyeongsan, Republic of Korea. .,Research Institute of Cell Culture, Yeungnam University, Gyeongsan, Republic of Korea.
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9
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Zhang Y, Liu W, Yuan W, Cai Z, Ye G, Zheng G, Xu C, Wang X, Zeng C, Mi R, Feng P, Chen F, Wu Y, Shen H, Wang P. Impairment of APPL1/Myoferlin facilitates adipogenic differentiation of mesenchymal stem cells by blocking autophagy flux in osteoporosis. Cell Mol Life Sci 2022; 79:488. [PMID: 35984564 PMCID: PMC9391247 DOI: 10.1007/s00018-022-04511-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Revised: 07/21/2022] [Accepted: 08/02/2022] [Indexed: 11/30/2022]
Abstract
An imbalance of human mesenchymal stem cells (hMSCs) adipogenic and osteogenic differentiation is crucial in the pathogenesis of osteoporosis, and elucidation of the underlying mechanism is urgently needed. APPL1, an adaptor protein of the adiponectin receptor, was recently shown to be closely related to bone mass. However, the role of APPL1 in the imbalance of hMSC differentiation in osteoporosis is unclear. Therefore, we aimed to explore the mechanisms by which APPL1 alters hMSCs adipogenic differentiation in osteoporosis. Here, we found that APPL1 expression was downregulated in elderly patients with osteoporosis and in mouse osteoporosis model. APPL1 negatively regulated hMSC adipogenic differentiation in vivo and in vitro. Mechanistically, by enhancing ubiquitination-mediated Myoferlin degradation, downregulated APPL1 expression increased the risk of lysosome dysfunction during hMSCs adipogenic differentiation. Lysosomal dysfunction inhibited autophagy flux by suppressing autophagosome degradation and promoted hMSC differentiation towards the adipocyte lineage. Our findings suggest that APPL1/Myoferlin downregulation promoted hMSCs adipogenic differentiation by inhibiting autophagy flux, further impairing the balance of hMSCs adipogenic and osteogenic differentiation in osteoporosis; the APPL1/ Myoferlin axis may be a promising diagnostic and therapeutic target for osteoporosis.
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Affiliation(s)
- Yunhui Zhang
- Department of Orthopedics, The Eighth Affiliated Hospital, Sun Yat-Sen University, 3025# Shennan Road, Shenzhen, 518000, People's Republic of China
| | - Wenjie Liu
- Department of Orthopedics, The Eighth Affiliated Hospital, Sun Yat-Sen University, 3025# Shennan Road, Shenzhen, 518000, People's Republic of China
| | - Weiquan Yuan
- Department of Orthopedics, The Eighth Affiliated Hospital, Sun Yat-Sen University, 3025# Shennan Road, Shenzhen, 518000, People's Republic of China
| | - Zhaopeng Cai
- Department of Orthopedics, The Eighth Affiliated Hospital, Sun Yat-Sen University, 3025# Shennan Road, Shenzhen, 518000, People's Republic of China
| | - Guiwen Ye
- Department of Orthopedics, The Eighth Affiliated Hospital, Sun Yat-Sen University, 3025# Shennan Road, Shenzhen, 518000, People's Republic of China
| | - Guan Zheng
- Department of Orthopedics, The Eighth Affiliated Hospital, Sun Yat-Sen University, 3025# Shennan Road, Shenzhen, 518000, People's Republic of China
| | - Chenhao Xu
- Department of Orthopedics, The Eighth Affiliated Hospital, Sun Yat-Sen University, 3025# Shennan Road, Shenzhen, 518000, People's Republic of China
| | - Xinglang Wang
- Department of Orthopedics, The Eighth Affiliated Hospital, Sun Yat-Sen University, 3025# Shennan Road, Shenzhen, 518000, People's Republic of China
| | - Chenying Zeng
- Center for Biotherapy, The Eighth Affiliated Hospital, Sun Yat-Sen University, 3025# Shennan Road, Shenzhen, 518000, People's Republic of China
| | - Rujia Mi
- Center for Biotherapy, The Eighth Affiliated Hospital, Sun Yat-Sen University, 3025# Shennan Road, Shenzhen, 518000, People's Republic of China
| | - Pei Feng
- Center for Biotherapy, The Eighth Affiliated Hospital, Sun Yat-Sen University, 3025# Shennan Road, Shenzhen, 518000, People's Republic of China
| | - Fenglei Chen
- Department of Orthopedics, The Eighth Affiliated Hospital, Sun Yat-Sen University, 3025# Shennan Road, Shenzhen, 518000, People's Republic of China
| | - Yanfeng Wu
- Center for Biotherapy, The Eighth Affiliated Hospital, Sun Yat-Sen University, 3025# Shennan Road, Shenzhen, 518000, People's Republic of China.
| | - Huiyong Shen
- Department of Orthopedics, The Eighth Affiliated Hospital, Sun Yat-Sen University, 3025# Shennan Road, Shenzhen, 518000, People's Republic of China.
| | - Peng Wang
- Department of Orthopedics, The Eighth Affiliated Hospital, Sun Yat-Sen University, 3025# Shennan Road, Shenzhen, 518000, People's Republic of China.
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10
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Zhou S, Maleitzke T, Geissler S, Hildebrandt A, Fleckenstein FN, Niemann M, Fischer H, Perka C, Duda GN, Winkler T. Source and hub of inflammation: The infrapatellar fat pad and its interactions with articular tissues during knee osteoarthritis. J Orthop Res 2022; 40:1492-1504. [PMID: 35451170 DOI: 10.1002/jor.25347] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Revised: 02/28/2022] [Accepted: 04/20/2022] [Indexed: 02/04/2023]
Abstract
Knee osteoarthritis, the most prevalent degenerative joint disorder worldwide, is driven by chronic low-grade inflammation and subsequent cartilage degradation. Clinical data on the role of the Hoffa or infrapatellar fat pad in knee osteoarthritis are, however, scarce. The infrapatellar fat pad is a richly innervated intracapsular, extrasynovial adipose tissue, and an abundant source of adipokines and proinflammatory and catabolic cytokines, which may contribute to chronic synovial inflammation, cartilage destruction, and subchondral bone remodeling during knee osteoarthritis. How the infrapatellar fat pad interacts with neighboring tissues is poorly understood. Here, we review available literature with regard to the infrapatellar fat pad's interactions with cartilage, synovium, bone, menisci, ligaments, and nervous tissue during the development and progression of knee osteoarthritis. Signaling cascades are described with a focus on immune cell populations, pro- and anti-inflammatory cytokines, adipokines, mesenchymal stromal cells, and molecules derived from conditioned media from the infrapatellar fat pad. Understanding the complex interplay between the infrapatellar fat pad and its neighboring articular tissues may help to better understand and treat the multifactorial pathogenesis of osteoarthritis.
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Affiliation(s)
- Sijia Zhou
- Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Center for Musculoskeletal Surgery, Berlin, Germany.,Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Julius Wolff Institute, Berlin, Germany
| | - Tazio Maleitzke
- Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Center for Musculoskeletal Surgery, Berlin, Germany.,Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Julius Wolff Institute, Berlin, Germany.,Berlin Institute of Health at Charité - Universitätsmedizin Berlin, BIH Biomedical Innovation Academy, BIH Charité Clinician Scientist Program, Berlin, Germany
| | - Sven Geissler
- Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Julius Wolff Institute, Berlin, Germany.,Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Berlin Institute of Health Center for Regenerative Therapies, Berlin, Germany
| | - Alexander Hildebrandt
- Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Center for Musculoskeletal Surgery, Berlin, Germany.,Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Julius Wolff Institute, Berlin, Germany
| | - Florian Nima Fleckenstein
- Berlin Institute of Health at Charité - Universitätsmedizin Berlin, BIH Biomedical Innovation Academy, BIH Charité Clinician Scientist Program, Berlin, Germany.,Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Diagnostic and Interventional Radiology, Berlin, Germany
| | - Marcel Niemann
- Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Center for Musculoskeletal Surgery, Berlin, Germany.,Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Julius Wolff Institute, Berlin, Germany.,Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Berlin Institute of Health Center for Regenerative Therapies, Berlin, Germany
| | - Heilwig Fischer
- Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Center for Musculoskeletal Surgery, Berlin, Germany.,Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Julius Wolff Institute, Berlin, Germany
| | - Carsten Perka
- Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Center for Musculoskeletal Surgery, Berlin, Germany
| | - Georg N Duda
- Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Julius Wolff Institute, Berlin, Germany.,Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Berlin Institute of Health Center for Regenerative Therapies, Berlin, Germany
| | - Tobias Winkler
- Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Center for Musculoskeletal Surgery, Berlin, Germany.,Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Julius Wolff Institute, Berlin, Germany.,Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Berlin Institute of Health Center for Regenerative Therapies, Berlin, Germany
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11
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Zhang C, Lin Y, Yan CH, Zhang W. Adipokine Signaling Pathways in Osteoarthritis. Front Bioeng Biotechnol 2022; 10:865370. [PMID: 35519618 PMCID: PMC9062110 DOI: 10.3389/fbioe.2022.865370] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2022] [Accepted: 03/31/2022] [Indexed: 11/13/2022] Open
Abstract
Osteoarthritis (OA) is a debilitating joint disease that affects millions of individuals. The pathogenesis of OA has not been fully elucidated. Obesity is a well-recognized risk factor for OA. Multiple studies have demonstrated adipokines play a key role in obesity-induced OA. Increasing evidence show that various adipokines may significantly affect the development or clinical course of OA by regulating the pro/anti-inflammatory and anabolic/catabolic balance, matrix remodeling, chondrocyte apoptosis and autophagy, and subchondral bone sclerosis. Several signaling pathways are involved but still have not been systematically investigated. In this article, we review the cellular and molecular mechanisms of adipokines in OA, and highlight the possible signaling pathways. The review suggested adipokines play important roles in obesity-induced OA, and exert downstream function via the activation of various signaling pathways. In addition, some pharmaceuticals targeting these pathways have been applied into ongoing clinical trials and showed encouraging results. However, these signaling pathways are complex and converge into a common network with each other. In the future work, more research is warranted to further investigate how this network works. Moreover, more high quality randomised controlled trials are needed in order to investigate the therapeutic effects of pharmaceuticals against these pathways for the treatment of OA. This review may help researchers to better understand the pathogenesis of OA, so as to provide new insight for future clinical practices and translational research.
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Affiliation(s)
- Chaofan Zhang
- Department of Orthopaedic Surgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou, China
| | - Yunzhi Lin
- Department of Stomatology, The First Affiliated Hospital of Fujian Medical University, Fuzhou, China
| | - Chun Hoi Yan
- Department of Orthopaedics & Traumatology, The University of Hong Kong, Pokfulam, Hong Kong SAR, China
- *Correspondence: Chun Hoi Yan, ; Wenming Zhang,
| | - Wenming Zhang
- Department of Orthopaedic Surgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou, China
- *Correspondence: Chun Hoi Yan, ; Wenming Zhang,
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12
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Ning K, Liu S, Yang B, Wang R, Man G, Wang DE, Xu H. Update on the Effects of Energy Metabolism in Bone Marrow Mesenchymal Stem Cells Differentiation. Mol Metab 2022; 58:101450. [PMID: 35121170 PMCID: PMC8888956 DOI: 10.1016/j.molmet.2022.101450] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Revised: 01/16/2022] [Accepted: 01/27/2022] [Indexed: 11/29/2022] Open
Abstract
Background As common progenitor cells of osteoblasts and adipocytes, bone marrow mesenchymal (stromal) stem cells (BMSCs) play key roles in bone homeostasis, tissue regeneration, and global energy homeostasis; however, the intrinsic mechanism of BMSC differentiation is not well understood. Plasticity in energy metabolism allows BMSCs to match the divergent demands of osteo-adipogenic differentiation. Targeting BMSC metabolic pathways may provide a novel therapeutic perspective for BMSC differentiation unbalance related diseases. Scope of review This review covers the recent studies of glucose, fatty acids, and amino acids metabolism fuel the BMSC differentiation. We also discuss recent findings about energy metabolism in BMSC differentiation. Major conclusions Glucose, fatty acids, and amino acids metabolism provide energy to fuel BMSC differentiation. Moreover, some well-known regulators including environmental stress, hormone drugs, and biological and pathological factors may also influence BMSC differentiation by altering metabolism. This offers insight to the significance of metabolism on BMSC fate determination and provides the possibility of treating diseases related to BMSC differentiation, such as obesity and osteoporosis, from a metabolic perspective.
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13
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Avilkina V, Chauveau C, Ghali Mhenni O. Sirtuin function and metabolism: Role in pancreas, liver, and adipose tissue and their crosstalk impacting bone homeostasis. Bone 2022; 154:116232. [PMID: 34678494 DOI: 10.1016/j.bone.2021.116232] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Revised: 10/07/2021] [Accepted: 10/08/2021] [Indexed: 12/12/2022]
Abstract
Mammalian sirtuins (SIRT1-7) are members of the nicotine adenine dinucleotide (NAD+)-dependent family of enzymes critical for histone deacetylation and posttranslational modification of proteins. Sirtuin family members regulate a wide spectrum of biological processes and are best known for maintaining longevity. Sirtuins are well characterized in metabolic tissues such as the pancreas, liver and adipose tissue (AT). They are regulated by a diverse range of stimuli, including nutrients and metabolic changes within the organism. Indeed, nutrient-associated conditions, such as obesity and anorexia nervosa (AN), were found to be associated with bone fragility development in osteoporosis. Interestingly, it has also been demonstrated that sirtuins, more specifically SIRT1, can regulate bone activity. Various studies have demonstrated the importance of sirtuins in bone in the regulation of bone homeostasis and maintenance of the balance between bone resorption and bone formation. However, to understand the molecular mechanisms involved in the negative regulation of bone homeostasis during overnutrition (obesity) or undernutrition, it is crucial to examine a wider picture and to determine the pancreatic, liver and adipose tissue pathway crosstalk responsible for bone loss. Particularly, under AN conditions, sirtuin family members are highly expressed in metabolic tissue, but this phenomenon is reversed in bone, and severe bone loss has been observed in human subjects. AN-associated bone loss may be connected to SIRT1 deficiency; however, additional factors may interfere with bone homeostasis. Thus, in this review, we focus on sirtuin activity in the pancreas, liver and AT in cases of over- and undernutrition, especially the regulation of their secretome by sirtuins. Furthermore, we examine how the secretome of the pancreas, liver and AT affects bone homeostasis, focusing on undernutrition. This review aims to lead to a better understanding of the crosstalk between sirtuins, metabolic organs and bone. In long term prospective it should contribute to promote improvement of therapeutic strategies for the prevention of metabolic diseases and the development of osteoporosis.
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Affiliation(s)
- Viktorija Avilkina
- Marrow Adiposity and Bone Lab (MABLab) ULR4490, Univ. Littoral Côte d'Opale, F-62200, Boulogne-sur-Mer, Univ. Lille F-59000 Lille, CHU Lille, F-59000 Lille, France
| | - Christophe Chauveau
- Marrow Adiposity and Bone Lab (MABLab) ULR4490, Univ. Littoral Côte d'Opale, F-62200, Boulogne-sur-Mer, Univ. Lille F-59000 Lille, CHU Lille, F-59000 Lille, France
| | - Olfa Ghali Mhenni
- Marrow Adiposity and Bone Lab (MABLab) ULR4490, Univ. Littoral Côte d'Opale, F-62200, Boulogne-sur-Mer, Univ. Lille F-59000 Lille, CHU Lille, F-59000 Lille, France.
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14
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Huang B, Bi W, Sun Y, Li R, Wu X, Yu Y. AdipoRon Promotes the Osseointegration of Dental Implants in Mice With Type 2 Diabetes Mellitus. Front Physiol 2021; 12:697738. [PMID: 36632609 PMCID: PMC9829077 DOI: 10.3389/fphys.2021.697738] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Accepted: 07/30/2021] [Indexed: 01/14/2023] Open
Abstract
AdipoRon is an oral active synthetic small molecule with biological functions similar to adiponectin (APN). It is an APN receptor agonist that can improve insulin resistance and glucose intolerance. However, the role of AdipoRon in bone metabolism and related molecular mechanisms remains to be investigated. To explore the effect of AdipoRon on bone absorption and bone integration of type 2 diabetes mellitus (T2DM) mice with implants, we established surgery-induced model of osseointegration of dental implantation in T2DM mice of C57BL/6 db/db and normal mice homologous to diabetic mice. Micro-CT was used to analyze the femurs with the implant in the mice to detect the bone mass, H&E, and tartrate-resistant acid phosphatase (TRAP), and Safranin O-fast green staining was performed to analyze the bone formation and bone resorption. Bone integration-related markers as Rankl, bone morphogenetic protein 2 (BMP2), osteoprotegerin (OPG), osteopontin (OPN), and runt-related transcription factor 2 (Runx2) were also measured using immunohistochemistry. Our results indicated that diabetic mice showed a lower bone mass and decreased the osteoblast differentiation. AdipoRon attenuated diabetes-impaired bone volume (BV)/total volume (TV), trabecular thickness (Tb.Th), trabecular number (Tb.N), trabecular separation (Tb.Sp), and bone integration-related markers variation and promoted bone hyperplasia as well as repressed the osteoclast formation, especially in diabetic mice. AdipoRon may improve the osseointegration of dental implants in mice with T2DM by promoting osteogenesis and inhibiting bone resorption, and AdipoRon may serve as a promising oral strategy to improve the osseointegration ability of patients with diabetes.
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15
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Liu H, Liu S, Ji H, Zhao Q, Liu Y, Hu P, Luo E. An adiponectin receptor agonist promote osteogenesis via regulating bone-fat balance. Cell Prolif 2021; 54:e13035. [PMID: 33939201 PMCID: PMC8168410 DOI: 10.1111/cpr.13035] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Revised: 03/09/2021] [Accepted: 03/15/2021] [Indexed: 02/06/2023] Open
Abstract
OBJECTIVES Adiponectin signalling has been considered to be a promising target to treat diabetes-related osteoporosis. However, contradictory results regarding bone formation were observed due to the various isoforms of adiponectin. Therefore, it would be necessary to investigate the effect of adiponectin receptor signals in regulating bone-fat balance. MATERIALS AND METHODS We primarily applied a newly found specific activator for adiponectin receptor, AdipoRon, to treat bone metabolism-related cells to investigate the role of Adiponectin receptor signals on bone-fat balance. We then established femur defect mouse model and treated them with AdipoRon to see whether adiponectin receptor activation could promote bone regeneration. RESULTS We found that AdipoRon could slightly inhibit the proliferation of pre-osteoblast and pre-osteoclast, but AdipoRon showed no effect on the viability of mesenchymal stromal cells. AdipoRon could remarkably promote cell migration of mesenchymal stromal cells. Additionally, AdipoRon promoted osteogenesis in both pre-osteoblasts and mesenchymal cells. Besides, AdipoRon significantly inhibited osteoclastogenesis via its direct impact on pre-osteoclast and its indirect inhibition of RANKL in osteoblast. Moreover, mesenchymal stromal stems cells showed obviously decreased adipogenesis when treated with AdipoRon. Consistently, AdipoRon-treated mice showed faster bone regeneration and repressed adipogenesis. CONCLUSIONS Our study demonstrated a pro-osteogenic, anti-adipogenic and anti-osteoclastogenic effect of adiponectin receptor activation in young mice, which suggested adiponectin receptor signalling was involved in bone regeneration and bone-fat balance regulation.
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Affiliation(s)
- Hanghang Liu
- State Key Laboratory of Oral Disease & National Clinical Research Center for Oral Diseases & Department of Oral Maxillofacial SurgeryWest China Hospital of StomatologySichuan UniversityChengduSichuanP. R. China
- Maine Medical Center Research InstituteMaine Medical CenterScarboroughMEUSA
| | - Shibo Liu
- State Key Laboratory of Oral Disease & National Clinical Research Center for Oral Diseases & Department of Oral Maxillofacial SurgeryWest China Hospital of StomatologySichuan UniversityChengduSichuanP. R. China
| | - Huanzhong Ji
- State Key Laboratory of Oral Disease & National Clinical Research Center for Oral Diseases & Department of Oral Maxillofacial SurgeryWest China Hospital of StomatologySichuan UniversityChengduSichuanP. R. China
| | - Qiucheng Zhao
- State Key Laboratory of Oral Disease & National Clinical Research Center for Oral Diseases & Department of Oral Maxillofacial SurgeryWest China Hospital of StomatologySichuan UniversityChengduSichuanP. R. China
| | - Yao Liu
- State Key Laboratory of Oral Disease & National Clinical Research Center for Oral Diseases & Department of Oral Maxillofacial SurgeryWest China Hospital of StomatologySichuan UniversityChengduSichuanP. R. China
| | - Pei Hu
- State Key Laboratory of Oral Disease & National Clinical Research Center for Oral Diseases & Department of Oral Maxillofacial SurgeryWest China Hospital of StomatologySichuan UniversityChengduSichuanP. R. China
| | - En Luo
- State Key Laboratory of Oral Disease & National Clinical Research Center for Oral Diseases & Department of Oral Maxillofacial SurgeryWest China Hospital of StomatologySichuan UniversityChengduSichuanP. R. China
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16
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Zeng Y, Liang H, Guo Y, Feng Y, Yao Q. Adiponectin regulates osteocytic MLO-Y4 cell apoptosis in a high-glucose environment through the AMPK/FoxO3a signaling pathway. J Cell Physiol 2021; 236:7088-7096. [PMID: 33792917 DOI: 10.1002/jcp.30381] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Revised: 03/16/2021] [Accepted: 03/18/2021] [Indexed: 11/09/2022]
Abstract
Clinical studies have shown that persistent hyperglycemia following oxidative stress is associated with the apoptosis of osteocytes in diabetics. Adiponectin (APN) can ameliorate oxidative stress, and its receptors have been identified in bone-forming cells. However, the relationship between APN and osteocyte apoptosis has not been fully elucidated. This study aimed to investigate whether APN could prevent osteocyte apoptosis and regulate reactive oxygen species (ROS) generation in a high-glucose environment. Hoechst staining and fluorescence microscopy were used to observe the apoptosis of osteocytic MLO-Y4 cells. Real-time quantitative polymerase chain reaction and Western blot analysis were used to detect the expression of Caspase 3, Caspase 8, and Bcl-2. ROS generation was investigated with an active oxygen kit and fluorescence microscopy. Furthermore, the expression of proteins in the AMPK/FoxO3A signaling pathway was also studied by Western blot analysis. In a high-glucose environment, APN promoted the proliferation of MLO-Y4 osteocytes and the expression of Bcl-2 but inhibited the expression of Caspase 3, Caspase 8, and ROS in a dose-dependent manner. APN promoted the activation of p-AMPK and p-AMPK/AMPK, which reached their highest levels at 10 min and returned to baseline at 30 min. The expression of p-FoxO3A/FoxO3A in both the cytoplasm and nucleus peaked at 15 min, and this expression was returned to baseline at 60 min. In summary, APN has an antiapoptotic effect and regulates ROS generation in MLO-Y4 osteocytes in a high-glucose environment. The AMPK/FoxO3A signaling pathway might be a key signaling pathway that participates in the effect of APN on regulating osteocyte apoptosis in diabetics.
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Affiliation(s)
- Yuanyuan Zeng
- Center of Stomatology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China.,Department of Stomatology, Shaoyang Central Hospital, Shaoyang, Hunan, China
| | - Hengxing Liang
- Department of Thoracic Surgery, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Yue Guo
- Center of Stomatology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Yunzhi Feng
- Center of Stomatology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Qianqian Yao
- Center of Stomatology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
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17
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Adiponectin inhibits lipoplysaccharide-induced inflammation and promotes osteogenesis in hPDLCs. Biosci Rep 2021; 41:227897. [PMID: 33616153 PMCID: PMC7926180 DOI: 10.1042/bsr20192668] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Revised: 11/21/2020] [Accepted: 02/16/2021] [Indexed: 11/17/2022] Open
Abstract
Periodontal diseases are infections of the structures that surround and support the teeth; they are characterized by local inflammation and alveolar bone loss. Most treatments focus on only one aspect, inhibiting inflammation, or promoting osteoblasts. We set out to develop a new method that would intervene in the two aspects simultaneously. Adiponectin (APN), secreted by adipocytes, inhibits the inflammatory response and promotes osteogenesis. However, its role in human periodontal ligament cells (hPDLCs) is unclear. Therefore, we aim to investigate whether APN could suppress lipopolysaccharide (LPS)-induced inflammation and promote osteogenesis in hPDLCs. In the present study, we stimulated hPDLCs with LPS in the presence or absence of APN. Real-time PCR and Western blotting results demonstrated that APN partially inhibited the activation of the classical nuclear factor κ-B (NF-κB) pathway. These results were confirmed by a change of expressions of NF-κB downstream inflammatory genes, such as decreased cyclooxygenase (COX)-2 and tumor necrosis factor α (TNF-α), along with increased interleukin (IL)-10. As for the role of APN in osteogenesis, Alizarin Red S staining showed that APN treatment induced more calcium deposition nodules than controls. We also found that APN enhanced the expression of osteoblast-related genes (osteopontin (OPN), collagen 1, osteocalcin, alkaline phosphatase, runt-related transcription factor 2 (RUNX2), and bone morphogenetic protein 2) in hPDLCs via the APPL1 (the adaptor protein containing PH domain, PTB domain, and leucine zipper motif 1)/p38 signal transduction pathway. Therefore, APN inhibits LPS-induced inflammation and promotes osteogenesis in hPDLCs and may have potential therapeutic value in treating periodontitis by inhibiting the inflammatory lesions and contributing to bone tissue regeneration.
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18
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Lewis JW, Edwards JR, Naylor AJ, McGettrick HM. Adiponectin signalling in bone homeostasis, with age and in disease. Bone Res 2021; 9:1. [PMID: 33414405 PMCID: PMC7790832 DOI: 10.1038/s41413-020-00122-0] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Revised: 08/28/2020] [Accepted: 10/14/2020] [Indexed: 01/29/2023] Open
Abstract
Adiponectin is the most abundant circulating adipokine and is primarily involved in glucose metabolism and insulin resistance. Within the bone, osteoblasts and osteoclasts express the adiponectin receptors, however, there are conflicting reports on the effects of adiponectin on bone formation and turnover. Many studies have shown a pro-osteogenic role for adiponectin in in vivo murine models and in vitro: with increased osteoblast differentiation and activity, alongside lower levels of osteoclastogenesis. However, human studies often demonstrate an inverse relationship between adiponectin concentration and bone activity. Moreover, the presence of multiple isoforms of adiponectin and multiple receptor subtypes has the potential to lead to more complex signalling and functional consequences. As such, we still do not fully understand the importance of the adiponectin signalling pathway in regulating bone homeostasis and repair in health, with age and in disease. In this review, we explore our current understanding of adiponectin bioactivity in the bone; the significance of its different isoforms; and how adiponectin biology is altered in disease. Ultimately, furthering our understanding of adiponectin regulation of bone biology is key to developing pharmacological and non-pharmacological (lifestyle) interventions that target adiponectin signalling to boost bone growth and repair in healthy ageing, following injury or in disease.
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Affiliation(s)
- Jonathan W Lewis
- Rheumatology Research Group, Institute of Inflammation and Ageing, University of Birmingham, Birmingham, B15 2TT, UK
| | - James R Edwards
- Ageing & Regeneration Research Group, Botnar Research Centre, University of Oxford, Oxford, OX3 7LD, UK
| | - Amy J Naylor
- Rheumatology Research Group, Institute of Inflammation and Ageing, University of Birmingham, Birmingham, B15 2TT, UK
| | - Helen M McGettrick
- Rheumatology Research Group, Institute of Inflammation and Ageing, University of Birmingham, Birmingham, B15 2TT, UK.
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19
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Effect of Nanostructured Scaffold on Human Adipose-Derived Stem Cells: Outcome of In Vitro Experiments. NANOMATERIALS 2020; 10:nano10091822. [PMID: 32932658 PMCID: PMC7558271 DOI: 10.3390/nano10091822] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Revised: 08/26/2020] [Accepted: 09/10/2020] [Indexed: 12/11/2022]
Abstract
This work is addressed to provide, by in vitro experiments, results on the repercussion that a nanostructured scaffold could have on viability, differentiation and secretion of bioactive factors of human adipose-derived stem cells (hASCs) when used in association to promote angiogenesis, a crucial condition to favour tissue regeneration. To achieve this aim, we evaluated cell viability and morphology by MTT (3-[4,5-dimethylthiazol-2-yl]-2,5-diphenyltetrazolium bromide) assay and microscopy analysis, respectively. We also investigated the expression of some of those genes involved in angiogenesis and differentiation processes utilizing quantitative polymerase chain reaction (qPCR), whereas the amounts of Vascular Endothelial Growth Factor A, Interleukin 6 and Fatty Acid-Binding Protein 4 secreted in the culture medium, were quantified by enzyme-linked immunosorbent assay (ELISA). Results suggested that, in the presence of the scaffold, cell proliferation and the exocytosis of factors involved in the angiogenesis process are reduced; by contrast, the expression of those genes involved in hASC differentiation appeared enhanced. To guarantee cell survival, the construct dimensions are, generally, smaller than clinically required. Furthermore, being the paracrine event the primary mechanism exerting the beneficial effects on injured tissues, the use of conditioned culture medium instead of cells may be convenient.
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20
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Identification of circRNA-associated ceRNA network in BMSCs of OVX models for postmenopausal osteoporosis. Sci Rep 2020; 10:10896. [PMID: 32616775 PMCID: PMC7331745 DOI: 10.1038/s41598-020-67750-8] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Accepted: 06/11/2020] [Indexed: 12/12/2022] Open
Abstract
Circular RNAs (circRNAs) serve as competing endogenous RNAs (ceRNAs) and indirectly regulate gene expression through shared microRNAs (miRNAs). However, the potential circRNAs functioning as ceRNAs in osteoporosis remain unclear. The bone marrow mesenchymal stem cells (BMSCs) were isolated from ovariectomy (OVX) mice and controls. We systematically analyzed RNA‐seq and miRNA‐microarray data, miRNA‐target interactions, and prominently coexpressed gene pairs to identify aberrantly expressed circRNAs, miRNAs, and messenger RNAs (mRNAs) between the OVX mice and controls. A total of 45 circRNAs, 22 miRNAs, and 548 mRNAs were significantly dysregulated (fold change > 1.5; p < 0.05). Gene Ontology and Kyoto Encyclopedia of Genes and Genomes pathway analyses were conducted for differentially expressed mRNAs, and subsequently a circRNA‐associated ceRNA network involved in osteoporosis was constructed. We identified two ceRNA regulatory pathways in this osteoporosis mouse model—novel circRNA 0020/miR-206-3p/Nnmt and circRNA 3832/miR-3473e/Runx3, which were validated by real-time PCR. This is the first study to elucidate the circRNA-associated ceRNA network in OVX and control mice using deep RNA-seq and RNA-microarray analysis. The data further expanded the understanding of circRNA-associated ceRNA networks, and the regulatory functions of circRNAs, miRNAs and mRNAs in the pathogenesis and pathology of osteoporosis.
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21
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Maroni P. Leptin, Adiponectin, and Sam68 in Bone Metastasis from Breast Cancer. Int J Mol Sci 2020; 21:ijms21031051. [PMID: 32033341 PMCID: PMC7037668 DOI: 10.3390/ijms21031051] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Revised: 02/03/2020] [Accepted: 02/04/2020] [Indexed: 12/12/2022] Open
Abstract
The most serious aspect of neoplastic disease is the spread of cancer cells to secondary sites. Skeletal metastases can escape detection long after treatment of the primary tumour and follow-up. Bone tissue is a breeding ground for many types of cancer cells, especially those derived from the breast, prostate, and lung. Despite advances in diagnosis and therapeutic strategies, bone metastases still have a profound impact on quality of life and survival and are often responsible for the fatal outcome of the disease. Bone and the bone marrow environment contain a wide variety of cells. No longer considered a passive filler, bone marrow adipocytes have emerged as critical contributors to cancer progression. Released by adipocytes, adipokines are soluble factors with hormone-like functions and are currently believed to affect tumour development. Src-associated in mitosis of 68 kDa (Sam68), originally discovered as a protein physically associated with and phosphorylated by c-Src during mitosis, is now recognised as an important RNA-binding protein linked to tumour onset and progression of disease. Sam68 also regulates splicing events and recent evidence reports that dysregulation of these events is a key step in neoplastic transformation and tumour progression. The present review reports recent findings on adipokines and Sam68 and their role in breast cancer progression and metastasis.
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Affiliation(s)
- Paola Maroni
- IRCCS Istituto Ortopedico Galeazzi, Via R. Galeazzi 4, 20161 Milano, Italy
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Abstract
PURPOSE OF THE REVIEW Osteoarthritis (OA) is an aging-associated and injury-induced joint disease characterized by cartilage degradation, bone sclerosis, and persistent low-grade inflammation in the joint. Aging and injury are triggers of joint pathological changes mediated by pro-inflammatory factors, some of which are secreted by white adipose tissue. Adipokines including adiponectin, leptin, resistin, chemerin, IL-6, and TNF-α are major players not only during inflammation but also in metabolic regulation of joint cells including chondrocytes, osteoblasts, osteoclasts as well as mesenchymal stem cells. The purpose of this review is to summarize the signal transduction pathways of adipokines in the articular joint to provide new information on potential targets for intervention of OA. RECENT FINDINGS The risk of knee osteoarthritis is associated with adipokine gene polymorphism. While the infrapatellar fat pad is a major source of adipokines in knee synovial fluid, adipocytes also accumulate in the bone marrow during aging and obesity. Adipokines can act as SASPs (senescence associated secretory phenotype factors) that participate in cellular senescence of chondrocytes, but they also regulate energy metabolism impacting bone remodeling. Thus, adipokines are closely related to the metabolic syndrome and degenerative pathological changes in cartilage and bone during OA. Modulating the effects of adipokines on different cell types in the intra-articular joint will be a promising new option for OA intervention.
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Affiliation(s)
- Chenxi Xie
- Bone and Joint Research Center, Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Qian Chen
- Department of Orthopaedics, Alpert Medical School of Brown University, Rhode Island Hospital, Providence, RI, 02903, USA.
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Wang Y, Du Y, Yuan H, Pan Y, Wu J, Du X, Hao S, Yan Z, Li X, Liu K, Xu F. Human amnion-derived mesenchymal stem cells enhance the osteogenic differentiation of human adipose-derived stem cells by promoting adiponectin excretion via the APPL1-ERK1/2 signaling pathway. IUBMB Life 2019; 72:296-304. [PMID: 31509344 DOI: 10.1002/iub.2165] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2019] [Accepted: 08/28/2019] [Indexed: 11/11/2022]
Abstract
Human adipose-derived stem cells (HASCs) represent pluripotent cells capable of differentiating into the bone tissue. Meanwhile, human amnion-derived mesenchymal stem cells (HAMSCs) could cause mesenchymal stem cells to differentiate into the bone tissue. This work assessed the osteogenic effects exerted by HAMSCs on the potential of HASCs to form bone cells. Cell growth was evaluated flow-cytometrically. Differentiation into osteoblasts and mineral formation were assessed by chromogenic alkaline phosphatase activity substrate assay and Alizarin red S staining. Adiponectin (APN), the adipocytokine secreted by adipocytes, was evaluated by enzyme-linked immunosorbent assay. In this study, HAMSCs concentration-dependently induced growth, osteoblastic differentiation, and APN excretion in HASCs. Mechanistically, immunofluorescence and immunoblot revealed HAMSCs promoted cytosolic translocation of leucine zipper motif (APPL1) from the nucleus and induced extracellular signaling-regulated kinase 1/2 (ERK1/2) phosphorylation in HASCs. Furthermore, HAMSC effects were markedly blunted by pretreatment with APPL1 siRNA and U0126, an ERK1/2 signaling inhibitor with high selectivity. These results suggested that APN excretion is not suppressed by APPL1 knockdown in HASCs, but by ERK1/2 inhibition. These findings collectively indicate that HAMSCs induce the osteogenesis of HASCs by promoting APN excretion through APPL1-ERK1/2 activation.
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Affiliation(s)
- Yuli Wang
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, China.,Department of Oral and Maxillofacial Surgery, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing, China
| | - Yifei Du
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, China.,Department of Oral and Maxillofacial Surgery, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing, China
| | - Hua Yuan
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, China.,Department of Oral and Maxillofacial Surgery, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing, China
| | - Yongchu Pan
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, China
| | - Jun Wu
- State Key Laboratory of Reproductive Medicine, The Research Center for Bone and Stem Cells, Department of Anatomy Histology and Embryology, Nanjing Medical University, Nanjing, China
| | - Xin Du
- State Key Laboratory of Bioelectronics, Southeast University, Nanjing, China
| | - Shushu Hao
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, China
| | - Zixin Yan
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, China
| | - Xuan Li
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, China
| | - Keyue Liu
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, China
| | - Fan Xu
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, China
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High molecular weight adiponectin reduces glucolipotoxicity-induced inflammation and improves lipid metabolism and insulin sensitivity via APPL1-AMPK-GLUT4 regulation in 3T3-L1 adipocytes. Atherosclerosis 2019; 288:67-75. [DOI: 10.1016/j.atherosclerosis.2019.07.011] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/01/2019] [Revised: 06/17/2019] [Accepted: 07/11/2019] [Indexed: 02/06/2023]
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25
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Yin G, Liu H, Li J, Liu Y, Liu X, Luo E. Adenoviral delivery of adiponectin ameliorates osteogenesis around implants in ovariectomized rats. J Gene Med 2019; 21:e3069. [PMID: 30609197 DOI: 10.1002/jgm.3069] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2018] [Revised: 12/26/2018] [Accepted: 12/26/2018] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Adiponectin (APN) has been reported to promote bone formation. However, it is difficult to utilize a conventional method that administers sufficient APN to the implant site. The present study investigated the efficacy of an APN transgene to accelerate the implant osseointegration in ovariectomized (OVX) rats. METHODS In vitro, bone marrow stromal cells were transduced with reconstructed adenovirus (Ad-APN-EGFP) and osteoclast precursor RAW264.7 cells were co-cultured with the conditioned medium secreted by transduced bone marrow stromal cells. Tartrate-resistant acid phosphatase staining and bone slice resorption assay were performed to evaluate the activity of osteoclastogenesis. In vivo, Ad-APN-EGFP was administered into the bone defect prior to implant placement in OVX rats. At 7 and 28 days post implantation, the femurs were harvested and prepared for a real-time reverse transcriptase-polymerase chain reaction, hemotoxylin and eosin staining, immunohistochemical staining, micro-computed tomography analysis and biomechanical testing. RESULTS The results showed the formation and function of osteoclasts were significantly suppressed in vitro. Successful transgene expression was confirmed, and a significant increase of OCN, Runx2 and ALP expression was detected in the Ad-APN-EGFP group in vivo. Interestingly, we also found that the overexpression of APN decreased the expression level of potent adipogenic transcription factors such as PPARγ2 and C/EBP-α. At 28 days after implantation, the Ad-APN-EGFP group revealed a significantly increased osseointegration and implant stability in OVX rats compared to the control groups (Ad-EGFP and PBS groups). CONCLUSIONS APN via direct adenovirus-mediated gene transfer could ameliorate osseointegration surrounding titanium implants in OVX-related osteoporosis rats. Furthermore, it may be an effective strategy for promoting bone regeneration under osteoporotic conditions.
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Affiliation(s)
- Guozhu Yin
- Department of Stomatology, Shandong Provincial Hospital affiliated to Shandong University, Jinan, China
| | - Hanghang Liu
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Jiayang Li
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Yao Liu
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, China.,Division of Oral Biology, Tufts University School of Dental Medicine, Boston, MA, USA
| | - Xian Liu
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - En Luo
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, China
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Wu X, Qiu W, Hu Z, Lian J, Liu Y, Zhu X, Tu M, Fang F, Yu Y, Valverde P, Tu Q, Yu Y, Chen J. An Adiponectin Receptor Agonist Reduces Type 2 Diabetic Periodontitis. J Dent Res 2019; 98:313-321. [PMID: 30626266 DOI: 10.1177/0022034518818449] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Periodontitis is twice as prevalent in diabetics as in nondiabetics, and type 2 diabetes (T2D)-associated periodontitis is severe in many cases due to the altered and aberrant functions of bone cells in hyperglycemic conditions. Therefore, developing an effective method to halt the disease process, as well as restore and regenerate lost alveolar bone to reserve the natural teeth in diabetics, is critically important. In the current study, we applied a newly discovered adiponectin receptor agonist AdipoRon (APR) in experimental periodontitis in diabetic animal models and demonstrated the underlying molecular mechanisms. We found that when APR systemically quenched the blood sugar level in diet-induced obesity (DIO) diabetic mice, it reduced osteoclast numbers and alveolar bone loss significantly due to APR's inhibition on osteoclast differentiation shown in our in vitro studies. APR also decreased the production of proinflammatory molecules CC chemokine ligand 2 and interleukin 6 in diseased gingival tissues. On the other hand, APR promoted alveolar bone regeneration through enhancing osteogenic differentiation and decreasing stromal cell-derived factor 1 in the bone marrow that facilitates stem cell migration. Same results were achieved by APR treatment of periodontitis induced in adiponectin (APN) knockout mice, indicating the ability of APR to activate the endogenous APN receptors to exert osteoanabolic effects. In summary, our study supports the notion that APR could be used as an effective multipronged approach to target T2D-associated periodontitis.
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Affiliation(s)
- X Wu
- 1 Department of Dentistry, Zhongshan Hospital, Fudan University, Shanghai, China.,2 Division of Oral Biology, Tufts University School of Dental Medicine, Boston, MA, USA
| | - W Qiu
- 2 Division of Oral Biology, Tufts University School of Dental Medicine, Boston, MA, USA
| | - Z Hu
- 2 Division of Oral Biology, Tufts University School of Dental Medicine, Boston, MA, USA
| | - J Lian
- 2 Division of Oral Biology, Tufts University School of Dental Medicine, Boston, MA, USA
| | - Y Liu
- 2 Division of Oral Biology, Tufts University School of Dental Medicine, Boston, MA, USA
| | - X Zhu
- 2 Division of Oral Biology, Tufts University School of Dental Medicine, Boston, MA, USA
| | - M Tu
- 2 Division of Oral Biology, Tufts University School of Dental Medicine, Boston, MA, USA
| | - F Fang
- 2 Division of Oral Biology, Tufts University School of Dental Medicine, Boston, MA, USA
| | - Y Yu
- 2 Division of Oral Biology, Tufts University School of Dental Medicine, Boston, MA, USA
| | - P Valverde
- 2 Division of Oral Biology, Tufts University School of Dental Medicine, Boston, MA, USA
| | - Q Tu
- 2 Division of Oral Biology, Tufts University School of Dental Medicine, Boston, MA, USA
| | - Y Yu
- 1 Department of Dentistry, Zhongshan Hospital, Fudan University, Shanghai, China
| | - J Chen
- 2 Division of Oral Biology, Tufts University School of Dental Medicine, Boston, MA, USA.,3 Department of Developmental, Molecular and Chemical Biology, Tufts University School of Medicine, Boston, MA, USA
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Wang Y, Chen X, Yin Y, Li S. Human amnion-derived mesenchymal stem cells induced osteogenesis and angiogenesis in human adipose-derived stem cells via ERK1/2 MAPK signaling pathway. BMB Rep 2018; 51:194-199. [PMID: 29429450 PMCID: PMC5933215 DOI: 10.5483/bmbrep.2018.51.4.005] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2018] [Indexed: 12/15/2022] Open
Abstract
Mesenchymal stem cells (MSCs) have shown great potential in treating bone deficiency. Human adipose-derived stem cells (HASCs) are multipotent progenitor cells with multi-lineage differentiation potential. Human amnion-derived mesenchymal stem cells (HAMSCs) are capable of promoting osteogenic differentiation of MSCs. In this study, we investigated the effect of HAMSCs on HASCs by a transwell co-culture system. HAMSCs promoted proliferation, osteogenic differentiation, angiogenic potential and adiponectin (APN) secretion of HASCs. Moreover, the positive effect of HAMSCs was significantly inhibited by U0126, a highly selective inhibitor of extracellular signaling-regulated kinase 1/2 (ERK1/2) mitogen-activated protein kinase (MAPK) signaling pathway. These observations suggested that HAMSCs induced bone regeneration in HASCs via ERK1/2 MAPK signaling pathway.
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Affiliation(s)
- Yuli Wang
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing 210029; Departments of Oral and Maxillofacial Surgery, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing 210029, China
| | - Xichen Chen
- Analysis Center, Nanjing Medical University, Nanjing 211166, China
| | - Ying Yin
- Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing 210008, China
| | - Song Li
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing 210029; Departments of Periodontology, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing 210029, China
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28
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A novel phosphorylation by AMP-activated kinase regulates RUNX2 from ubiquitination in osteogenesis over adipogenesis. Cell Death Dis 2018; 9:754. [PMID: 29988028 PMCID: PMC6037667 DOI: 10.1038/s41419-018-0791-7] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2018] [Revised: 05/10/2018] [Accepted: 06/11/2018] [Indexed: 12/13/2022]
Abstract
Mesenchymal stem cells (MSCs) function as progenitors to a variety of cell types. The reported association between osteogenic and adipogenic commitment during differentiation is due to the regulation of key transcription factors in the signaling pathways. However, the process of adipogenesis at the expense of osteogenic phenotype during metabolic stress is still unclear. In this study, we showed for the first time that RUNX2 is a novel substrate of AMP-activated kinase (AMPK), which directly phosphorylates at serine 118 residue in the DNA-binding domain of RUNX2. Our results in in vitro MSC lineage differentiation models confirmed that active AMPK and RUNX2-S118 phosphorylation are preferentially associated with osteogenic commitment, whereas the lack of this phosphorylation leads to adipogenesis. This interplay is regulated by the ubiquitination of non-phosphorylated RUNX2-S118, which is evident in the dominant mutant RUNX2-S118D. Pharmacological activation of AMPK by metformin significantly abrogated the loss of RUNX2-S118 phosphorylation and protected from tunicamycin-induced endoplasmic reticulum stress, high glucose-induced in vitro adipogenesis and streptozotocin-induced in vivo bone adiposity and bone phenotype. In conclusion, results from this study demonstrated that RUNX2 is a direct target of AMPK which simplified the outlook towards several complex mechanisms that are currently established concerning cellular metabolism and pathogenesis.
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Pal China S, Sanyal S, Chattopadhyay N. Adiponectin signaling and its role in bone metabolism. Cytokine 2018; 112:116-131. [PMID: 29937410 DOI: 10.1016/j.cyto.2018.06.012] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2018] [Revised: 06/06/2018] [Accepted: 06/09/2018] [Indexed: 12/14/2022]
Abstract
Adiponectin, the most prevalent adipo-cytokine in plasma plays critical metabolic and anti-inflammatory roles is fast emerging as an important molecular target for the treatment of metabolic disorders. Adiponectin action is critical in multiple organs including cardio-vascular system, muscle, liver, adipose tissue, brain and bone. Adiponectin signaling in bone has been a topic of active investigation lately. Human association studies and multiple mice models of gene deletion/modification failed to define a clear cause and effect of adiponectin signaling in bone. The most plausible reason could be the multimeric forms of adiponectin that display differential binding to receptors (adipoR1 and adipoR2) with cell-specific receptor variants in bone. Discovery of small molecule agonist of adipoR1 suggested a salutary role of this receptor in bone metabolism. The downstream signaling of adipoR1 in osteoblasts involves stimulation of oxidative phosphorylation leading to increased differentiation via the likely suppression of wnt inhibitor, sclerostin. On the other hand, the inflammation modulatory effect of adiponectin signaling suppresses the RANKL (receptor activator of nuclear factor κ-B ligand) - to - OPG (osteprotegerin) ratio in osteoblasts leading to the suppression of osteoclastogenic response. This review will discuss the adiponectin signaling and its role in skeletal homeostasis and critically assess whether adipoR1 could be a therapeutic target for the treatment of metabolic bone diseases.
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Affiliation(s)
- Shyamsundar Pal China
- Division of Endocrinology and CSIR-Central Drug Research Institute, Sitapur Road, Lucknow 226 031, India
| | - Sabyasachi Sanyal
- Division of Biochemistry, CSIR-Central Drug Research Institute, Sitapur Road, Lucknow 226 031, India
| | - Naibedya Chattopadhyay
- Division of Endocrinology and CSIR-Central Drug Research Institute, Sitapur Road, Lucknow 226 031, India.
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Han Y, You X, Xing W, Zhang Z, Zou W. Paracrine and endocrine actions of bone-the functions of secretory proteins from osteoblasts, osteocytes, and osteoclasts. Bone Res 2018; 6:16. [PMID: 29844945 PMCID: PMC5967329 DOI: 10.1038/s41413-018-0019-6] [Citation(s) in RCA: 300] [Impact Index Per Article: 50.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2017] [Revised: 03/21/2018] [Accepted: 04/16/2018] [Indexed: 12/17/2022] Open
Abstract
The skeleton is a dynamic organ that is constantly remodeled. Proteins secreted from bone cells, namely osteoblasts, osteocytes, and osteoclasts exert regulation on osteoblastogenesis, osteclastogenesis, and angiogenesis in a paracrine manner. Osteoblasts secrete a range of different molecules including RANKL/OPG, M-CSF, SEMA3A, WNT5A, and WNT16 that regulate osteoclastogenesis. Osteoblasts also produce VEGFA that stimulates osteoblastogenesis and angiogenesis. Osteocytes produce sclerostin (SOST) that inhibits osteoblast differentiation and promotes osteoclast differentiation. Osteoclasts secrete factors including BMP6, CTHRC1, EFNB2, S1P, WNT10B, SEMA4D, and CT-1 that act on osteoblasts and osteocytes, and thereby influenceaA osteogenesis. Osteoclast precursors produce the angiogenic factor PDGF-BB to promote the formation of Type H vessels, which then stimulate osteoblastogenesis. Besides, the evidences over the past decades show that at least three hormones or "osteokines" from bone cells have endocrine functions. FGF23 is produced by osteoblasts and osteocytes and can regulate phosphate metabolism. Osteocalcin (OCN) secreted by osteoblasts regulates systemic glucose and energy metabolism, reproduction, and cognition. Lipocalin-2 (LCN2) is secreted by osteoblasts and can influence energy metabolism by suppressing appetite in the brain. We review the recent progresses in the paracrine and endocrine functions of the secretory proteins of osteoblasts, osteocytes, and osteoclasts, revealing connections of the skeleton with other tissues and providing added insights into the pathogenesis of degenerative diseases affecting multiple organs and the drug discovery process.
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Affiliation(s)
- Yujiao Han
- State Key Laboratory of Cell Biology, CAS Center for Excellence in Molecular Cell Sciences, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, 200031 China
| | - Xiuling You
- State Key Laboratory of Cell Biology, CAS Center for Excellence in Molecular Cell Sciences, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, 200031 China
| | - Wenhui Xing
- State Key Laboratory of Cell Biology, CAS Center for Excellence in Molecular Cell Sciences, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, 200031 China
| | - Zhong Zhang
- State Key Laboratory of Cell Biology, CAS Center for Excellence in Molecular Cell Sciences, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, 200031 China
| | - Weiguo Zou
- State Key Laboratory of Cell Biology, CAS Center for Excellence in Molecular Cell Sciences, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, 200031 China
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31
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Mesenchymal stem cells from human adipose tissue and bone repair: a literature review. ACTA ACUST UNITED AC 2018. [DOI: 10.1016/j.biori.2017.10.005] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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Lin H, Ying Y, Wang YY, Wang G, Jiang SS, Huang D, Luo L, Chen YG, Gerstenfeld LC, Luo Z. AMPK downregulates ALK2 via increasing the interaction between Smurf1 and Smad6, leading to inhibition of osteogenic differentiation. BIOCHIMICA ET BIOPHYSICA ACTA. MOLECULAR CELL RESEARCH 2017; 1864:2369-2377. [PMID: 28847510 PMCID: PMC5660632 DOI: 10.1016/j.bbamcr.2017.08.009] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2016] [Revised: 08/09/2017] [Accepted: 08/10/2017] [Indexed: 12/15/2022]
Abstract
Activin A receptor type I or activin receptor-like kinase 2 (ACVRI/ALK2) belongs to type I TGF-β family and plays an important role in bone development. Activating mutations of ALK2 containing the R206 to H mutation, are present in 95% in the rare autosomal genetic disease fibrodysplasia ossificans progressiva (FOP), which leads to the development of ectopic bone formation in muscle. The effect of AMP-activated protein kinase (AMPK) activation on ALK2R206H-mediated signaling in fibroblasts obtained from a FOP patient was assessed in the present study. The activity of the mutated ALK2 was suppressed by pharmacological AMPK activators such as metformin and aspirin, while their actions were blocked by the dominant negative mutant of AMPK and mimicked by the constitutively active mutant of AMPK. Furthermore, activation of AMPK upregulated Smad6 and Smurf1 and thereby enhanced their interactions, resulting in its proteosome-dependent degradation of ALK2. In contrast, knockdown of Smad6 or Smurf1 prevented metformin-induced reduction of ALK2. To evaluate the biological relevance of AMPK action on ALK2 activity, we induced FOP fibroblasts into iPS cells and found that their osteogenic differentiation in vitro was inhibited by metformin. Our studies provide novel insight into potential approaches to treatment of FOP, since several AMPK activators (e.g. metformin, berberine, and aspirin) are already in clinical use for the treatment of diabetes and metabolic syndromes.
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Affiliation(s)
- Hui Lin
- Jiangxi Province Key Laboratory of Tumor Pathogenesis and Molecular Pathology, Department of Pathophysiology, Schools of Basic Sciences and Pharmaceutical Sciences, Nanchang University Medical College, Nanchang, China; Department of Biochemistry, Boston University School of Medicine, Boston, MA 02118, United States
| | - Ying Ying
- Jiangxi Province Key Laboratory of Tumor Pathogenesis and Molecular Pathology, Department of Pathophysiology, Schools of Basic Sciences and Pharmaceutical Sciences, Nanchang University Medical College, Nanchang, China; Department of Biochemistry, Boston University School of Medicine, Boston, MA 02118, United States
| | - Yuan-Yuan Wang
- Department of Biochemistry, Boston University School of Medicine, Boston, MA 02118, United States
| | - Gang Wang
- Department of Cardiology, Boston Children's Hospital, 300 Longwood Avenue, Boston, MA 02115, United States
| | - Shan-Shan Jiang
- Jiangxi Province Key Laboratory of Tumor Pathogenesis and Molecular Pathology, Department of Pathophysiology, Schools of Basic Sciences and Pharmaceutical Sciences, Nanchang University Medical College, Nanchang, China; Department of Biochemistry, Boston University School of Medicine, Boston, MA 02118, United States
| | - Deqinag Huang
- The Institute of Digestive Diseases, The First Affiliated Hospital, Nanchang University, Nanchang, China
| | - Lingyu Luo
- The Institute of Digestive Diseases, The First Affiliated Hospital, Nanchang University, Nanchang, China
| | - Ye-Guang Chen
- School of Life Sciences, Tsinghua University, Beijing, China
| | - Louis C Gerstenfeld
- Department of Orthopaedic Surgery, Boston University School of Medicine, Boston, MA, United States
| | - Zhijun Luo
- Jiangxi Province Key Laboratory of Tumor Pathogenesis and Molecular Pathology, Department of Pathophysiology, Schools of Basic Sciences and Pharmaceutical Sciences, Nanchang University Medical College, Nanchang, China; Department of Biochemistry, Boston University School of Medicine, Boston, MA 02118, United States.
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Wang Y, Zhang X, Shao J, Liu H, Liu X, Luo E. Adiponectin regulates BMSC osteogenic differentiation and osteogenesis through the Wnt/β-catenin pathway. Sci Rep 2017. [PMID: 28623357 PMCID: PMC5473871 DOI: 10.1038/s41598-017-03899-z] [Citation(s) in RCA: 77] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Recent studies have demonstrated the stimulatory effects of adiponectin on bone formation, but the mechanism underlying these effects remains unclear. The Wnt/β-catenin pathway, one of the most important pathways in osteogenesis, has rarely been associated with the osteogenic effects of adiponectin in previous studies. The present study was designed to investigate the effects of adiponectin on bone mesenchymal stem cell (BMSC) osteogenic differentiation and bone formation through the Wnt/β-catenin pathway. We detected adiponectin receptor expression in BMSCs, constructed a recombinant adenovirus containing the human adiponectin gene, and then used the adenovirus to transfect BMSCs in vitro or injected the adenovirus into bone defect areas in animal models. Wnt/β-catenin pathway and osteogenesis were detected by real-time PCR, western blotting, immunofluorescence, HE staining and micro-CT. In both our in vivo and in vitro experiments, we detected higher gene and protein expression levels of the Wnt/β-catenin pathway-related factors β-catenin and cyclinD1 in adiponectin transgenic BMSCs and rats. Similar results were noted regarding the gene and protein expression levels of osteogenesis-related genes. In addition, more new bone formation was observed in the adiponectin-treated groups. Our results indicate that adiponectin could facilitate BMSC osteogenic differentiation and osteogenesis, and the Wnt/β-catenin pathway was involved in the osteogenic effect of adiponectin.
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Affiliation(s)
- Yiyao Wang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, People's Republic of China
| | - Xiaohui Zhang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, People's Republic of China
| | - Jun Shao
- Department of Stomatology, Guangzhou Hospital of Integrated Traditional and Western Medicine, Guangzhou, 510800, People's Republic of China
| | - Hanghang Liu
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, People's Republic of China
| | - Xian Liu
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, People's Republic of China.
| | - En Luo
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, People's Republic of China.
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Adipokine Contribution to the Pathogenesis of Osteoarthritis. Mediators Inflamm 2017; 2017:5468023. [PMID: 28490838 PMCID: PMC5401756 DOI: 10.1155/2017/5468023] [Citation(s) in RCA: 88] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2016] [Revised: 02/25/2017] [Accepted: 03/07/2017] [Indexed: 12/13/2022] Open
Abstract
Recent studies have shown that overweight and obesity play an important role in the development of osteoarthritis (OA). However, joint overload is not the only risk factor in this disease. For instance, the presence of OA in non-weight-bearing joints such as the hand suggests that metabolic factors may also contribute to its pathogenesis. Recently, white adipose tissue (WAT) has been recognized not only as an energy reservoir but also as an important secretory organ of adipokines. In this regard, adipokines have been closely associated with obesity and also play an important role in bone and cartilage homeostasis. Furthermore, drugs such as rosuvastatin or rosiglitazone have demonstrated chondroprotective and anti-inflammatory effects in cartilage explants from patients with OA. Thus, it seems that adipokines are important factors linking obesity, adiposity, and inflammation in OA. In this review, we are focused on establishing the physiological mechanisms of adipokines on cartilage homeostasis and evaluating their role in the pathophysiology of OA based on evidence derived from experimental research as well as from clinical-epidemiological studies.
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Liu X, Chen T, Wu Y, Tang Z. Role and mechanism of PTEN in adiponectin-induced osteogenesis in human bone marrow mesenchymal stem cells. Biochem Biophys Res Commun 2016; 483:712-717. [PMID: 27986563 DOI: 10.1016/j.bbrc.2016.12.076] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2016] [Accepted: 12/10/2016] [Indexed: 12/19/2022]
Abstract
Human bone marrow-derived stromal cells (hBMSC) are multi-potent stem cells that can differentiate into osteogenic and adipogenic lineages. Adiponectin (APN) is an adipocyte-derived hormone that modulates a series of metabolic processes. Recent studies revealed a relationship between APN and bone regeneration, though the underlying mechanism was not fully examined. Phosphatase and tensin homolog deleted on chromosome ten (PTEN) is a tumor suppressor and a therapeutic target for the metabolic syndrome. Its deletion mutants increase osteoblast activity and bone mineral density. Both APN and PTEN are involved in osteogenic differentiation. However, whether PTEN is involved in APN-induced bone metabolism remains unclear. This project was designed to study whether PTEN was involved in APN-mediated osteogenesis of hBMSCs. We found that APN downregulated PTEN expression and that both it and an inhibitor of PTEN (SF1670) increased the expression of osteogenic markers such as osteocalcin, alkaline phosphatase, and runt-related transcription factor-2 in APN-treated hBMSCs. Our results suggested that APN enhanced osteogenic differentiation of hBMSCs in vitro partially by inhibiting PTEN expression. APN could be a therapeutic agent in tissue regeneration engineering and bone regeneration by inhibiting PTEN expression and then promoting the osteogenic differentiation of hBMSCs.
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Affiliation(s)
- Xuhong Liu
- 2nd Dental Center, School and Hospital of Stomatology, Peking University, Beijing, 100081, People's Republic of China; National Engineering Laboratory for Digital and Material Technology of Stomatology, School and Hospital of Stomatology, Peking University, Beijing, 100081, People's Republic of China
| | - Tong Chen
- 2nd Dental Center, School and Hospital of Stomatology, Peking University, Beijing, 100081, People's Republic of China; National Engineering Laboratory for Digital and Material Technology of Stomatology, School and Hospital of Stomatology, Peking University, Beijing, 100081, People's Republic of China
| | - Yuwei Wu
- 2nd Dental Center, School and Hospital of Stomatology, Peking University, Beijing, 100081, People's Republic of China; National Engineering Laboratory for Digital and Material Technology of Stomatology, School and Hospital of Stomatology, Peking University, Beijing, 100081, People's Republic of China.
| | - Zhihui Tang
- 2nd Dental Center, School and Hospital of Stomatology, Peking University, Beijing, 100081, People's Republic of China; National Engineering Laboratory for Digital and Material Technology of Stomatology, School and Hospital of Stomatology, Peking University, Beijing, 100081, People's Republic of China.
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Li D, Guo Y, Lu H, Wang R, Hu HC, Lu SH, Li XF, Li ZC, Wu YW, Tang ZH. The effect of local delivery of adiponectin from biodegradable microsphere-scaffold composites on new bone formation in adiponectin knockout mice. J Mater Chem B 2016; 4:4771-4779. [PMID: 32263251 DOI: 10.1039/c6tb00704j] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Adiponectin (APN) is the most abundant adipocyte-secreted adipokine; it regulates energy homeostasis and exerts well-characterized insulin-sensitizing properties. Previous studies have verified that globular adiponectin (gAPN) is also involved in bone metabolism, although observations have been controversial. The purpose of the current study is to use an APN-knockout (APN-KO) mouse model to evaluate the local delivery of gAPN to new bone formation. Using chitosan microspheres (CMs), we found that following an initial burst at 1 week, the release behavior of gAPN from the scaffold was sustained in a linear manner for the first 4 weeks, followed by a slower, more stable release from week 5 onwards. Interestingly, PLGA/β-TCP/CM-loaded gAPN scaffolds implanted in APN-KO mice increased bone formation and mineralization, and enhanced osteogenic marker expression 28 days post-implantation. gAPN also promoted preosteoblast (MC3T3-E1) cellular proliferation in vitro. In MC3T3-E1 cells, adaptor protein-containing pleckstrin homology domain, phosphotyrosine domain, leucine zipper motif (APPL1) and phosphoinositide 3-kinase (PI3K) expression was upregulated in a time-dependent manner upon gAPN treatment, while APPL1 small interfering RNA (siRNA) pre-treatment reversed this enhanced expression. In conclusion, modified bone graft substitutes loaded with gAPN increase bone formation and mineralization in part by promoting osteoblast proliferation via the APPL1/PI3K pathway.
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Affiliation(s)
- Dan Li
- 2nd Dental Center, Peking University School and Hospital of Stomatology, B5 Anli Garden, #66 Anli Road, Chao Yang District, Beijing, 100101, China.
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Histological analysis of in vitro co-culture and in vivo mice co-transplantation of stem cell-derived adipocyte and osteoblast. Tissue Eng Regen Med 2016; 13:227-234. [PMID: 30603403 DOI: 10.1007/s13770-016-9094-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2015] [Revised: 12/23/2015] [Accepted: 12/28/2015] [Indexed: 11/27/2022] Open
Abstract
Many researchers have focused on the role of adipocytes in increasing efficient bone tissue engineering and osteogenic differentiation of stem cells. Previous reports have not reached a definite consensus on whether adipocytes positively influence in vitro osteogenic differentiation and in vivo bone formation. We investigated the adipocyte influence on osteogenic differentiation from adipose-derived stromal cells (ADSCs) and bone formation through histological analysis in vitro and in vivo. Using the direct co-culture system, we analyzed the influence of adipocytes to promote the differentiation fate of ADSCs. Using co-transplantation of ADSC-derived adipocytes and osteoblasts into the dorsal region of mice, the osteogenesis and bone quality were determined by histological morphology, radiography, and the measurement of the Ca2+ concentration. The adipocyte negatively affected the osteoblast differentiation of ADSCs in the in vitro system and induced osteogenesis of osteoblasts in the in vivo system through co-transplantation. Interestingly, in the co-transplanted adipocytes and osteoblasts, the bone formation areas decreased in the osteoblast only group compared with the mixed adipocytes and osteoblast group 6 weeks after transplantation. Conversely, co-transplantation and osteoblast transplantation had similar degrees of calcification as observed from radiography analysis and the measurement of the Ca2+ concentrations. Our results revealed that adipocytes inhibited osteoblast differentiation in vitro but enhanced the efficacy of osteogenesis in vivo. In addition, the adipocytes controlled the activity of osteoclasts in the newly formed bone tissue. Our approach can be used to reconstruct bone using stem cell-based tissue engineering and to enhance the understanding of the role adipocytes play.
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Neumann E, Junker S, Schett G, Frommer K, Müller-Ladner U. Adipokines in bone disease. Nat Rev Rheumatol 2016; 12:296-302. [DOI: 10.1038/nrrheum.2016.49] [Citation(s) in RCA: 73] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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Pu Y, Wu H, Lu S, Hu H, Li D, Wu Y, Tang Z. Adiponectin Promotes Human Jaw Bone Marrow Stem Cell Osteogenesis. J Dent Res 2016; 95:769-75. [PMID: 26961489 DOI: 10.1177/0022034516636853] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Human jaw bone marrow mesenchymal stem cells (h-JBMMSCs) are multipotent progenitor cells with osteogenic differentiation potential. The relationship between adiponectin (APN) and the metabolism of h-JBMMSCs has not been fully elucidated, and the underlying mechanism remains unclear. The aim of the study was to investigate the effect and mechanism of APN on h-JBMMSC metabolism. h-JBMMSCs were obtained from the primary culture of human jaw bones and treated with or without APN (1 µg/mL). Osteogenesis-related gene expression was evaluated by real-time polymerase chain reaction (PCR), alkaline phosphatase (ALP) activity assay, and enzyme-linked immunosorbent assay (ELISA). To further investigate the signaling pathway, mechanistic studies were performed using Western blotting, immunofluorescence, lentiviral transduction, and SB202190 (a specific p38 inhibitor). Alizarin Red staining showed that APN promoted h-JBMMSC osteogenesis. Real-time PCR, ALP assay, and ELISA showed that ALP, osteocalcin (OCN), osteopontin, and integrin-binding sialoprotein were up-regulated in APN-treated cells compared to untreated controls. Immunofluorescence revealed that adaptor protein containing a pleckstrin homology domain, phosphotyrosine domain, and leucine zipper motif (APPL1) translocated from the nucleus to the cytoplasm with APN treatment. Additionally, the phosphorylation of p38 mitogen-activated protein kinase (MAPK) increased over time with APN treatment. Moreover, knockdown of APPL1 or p38 MAPK inhibition blocked the expression of APN-induced calcification-related genes including ALP, Runt-related transcription factor 2 (RUNX2), and OCN. Furthermore, Alizarin Red staining of calcium nodes was not increased by the knockdown of APPL1 or p38 inhibition. Our data suggest that this regulation is mediated through the APPL1–p38 MAPK signaling pathway. These findings collectively provide evidence that APN induces the osteogenesis of h-JBMMSCs through APPL1-mediated p38 MAPK activation.
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Affiliation(s)
- Y. Pu
- 2nd Dental Center, Peking University School and Hospital of Stomatology, Beijing, China
- Central Laboratory, Peking University School and Hospital of Stomatology, Beijing, China
| | - H. Wu
- 2nd Dental Center, Peking University School and Hospital of Stomatology, Beijing, China
- Central Laboratory, Peking University School and Hospital of Stomatology, Beijing, China
| | - S. Lu
- 2nd Dental Center, Peking University School and Hospital of Stomatology, Beijing, China
- National Engineering Laboratory for Digital and Material Technology of Stomatology, Peking University School and Hospital of Stomatology, Beijing, China
| | - H. Hu
- 2nd Dental Center, Peking University School and Hospital of Stomatology, Beijing, China
- National Engineering Laboratory for Digital and Material Technology of Stomatology, Peking University School and Hospital of Stomatology, Beijing, China
| | - D. Li
- 2nd Dental Center, Peking University School and Hospital of Stomatology, Beijing, China
- National Engineering Laboratory for Digital and Material Technology of Stomatology, Peking University School and Hospital of Stomatology, Beijing, China
| | - Y. Wu
- 2nd Dental Center, Peking University School and Hospital of Stomatology, Beijing, China
- National Engineering Laboratory for Digital and Material Technology of Stomatology, Peking University School and Hospital of Stomatology, Beijing, China
| | - Z. Tang
- 2nd Dental Center, Peking University School and Hospital of Stomatology, Beijing, China
- National Engineering Laboratory for Digital and Material Technology of Stomatology, Peking University School and Hospital of Stomatology, Beijing, China
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Abuna RP, De Oliveira FS, Santos TDS, Guerra TR, Rosa AL, Beloti MM. Participation of TNF-α in Inhibitory Effects of Adipocytes on Osteoblast Differentiation. J Cell Physiol 2015; 231:204-14. [DOI: 10.1002/jcp.25073] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2014] [Accepted: 06/05/2015] [Indexed: 01/16/2023]
Affiliation(s)
- Robrigo P.F. Abuna
- Cell Culture Laboratory; School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto; São Paulo Brazil
| | - Fabiola S. De Oliveira
- Cell Culture Laboratory; School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto; São Paulo Brazil
| | - Thiago De S. Santos
- Cell Culture Laboratory; School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto; São Paulo Brazil
| | - Thais R. Guerra
- Cell Culture Laboratory; School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto; São Paulo Brazil
| | - Adalberto L. Rosa
- Cell Culture Laboratory; School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto; São Paulo Brazil
| | - Marcio M. Beloti
- Cell Culture Laboratory; School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto; São Paulo Brazil
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