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A novel molecular mechanism of vascular fibrosis in Takayasu arteritis: macrophage-derived GPNMB promoting adventitial fibroblast extracellular matrix production in the aorta. Transl Res 2022; 255:128-139. [PMID: 36566014 DOI: 10.1016/j.trsl.2022.12.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Revised: 12/13/2022] [Accepted: 12/15/2022] [Indexed: 12/24/2022]
Abstract
Takayasu arteritis (TAK) is a chronic large vessel disease characterized by aortic fibrotic thickening, which was mainly mediated by activation of aorta adventitial fibroblasts (AAFs). Our previous genetic study demonstrated that TAK-associated locus IL6 rs2069837 regulated glycoprotein non-metastatic melanoma protein B (GPNMB) expression. Thus, this study aimed to investigate the pathogenic role of GPNMB in TAK. Through pathological staining, we find that GPNMB was mainly expressed in vascular adventitia and positively correlated with adventitial extracellular matrix (ECM) expression in TAK vascular lesion. Specifically, GPNMB was increased in adventitial CD68+ macrophages, which were closely located with CD90+ adventitial fibroblasts. In in-vitro cell culture, THP-1-derived macrophages with GPNMB overexpression promoted ECM expression in AAFs. This effect was also confirmed in aortic tissue or AAFs culture with GPNMB overexpression or active GPNMB protein stimulation. Mechanistically, Co-IP assay and siRNA or inhibitor intervention demonstrated that integrin αVβ1 receptor mediated GPNMB effect on AAFs, which also activated downstream Akt and Erk pathway in AAFs. Furthermore, we showed that leflunomide treatment inhibited GPNMB-mediated fibrosis in AAFs, as well as GPNMB expression in macrophages, which were also partially validated in leflunomide-treated patients. Taken together, these data indicated that macrophage-derived GPNMB promotes AAFs ECM expression via the integrin αVβ1 receptor and Akt/Erk signaling pathway and leflunomide might play an anti-fibrotic role in TAK by interfering with the macrophage-derived GPNMB/AAFs axis. This study provides evidence that targeting GPNMB is a potential therapeutic strategy for treating vascular fibrosis in TAK.
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Qin T, Xi X, Wu Z. Downregulation of glycoprotein non-metastatic melanoma protein B prevents high glucose-induced angiogenesis in diabetic retinopathy. Mol Cell Biochem 2022; 478:697-706. [PMID: 36036335 DOI: 10.1007/s11010-022-04537-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Accepted: 08/04/2022] [Indexed: 11/30/2022]
Abstract
Diabetic retinopathy (DR), a microvascular complication characterized by abnormal angiogenesis, is the most common reason for irreversible blindness. Glycoprotein non-metastatic melanoma protein B (GPNMB), as a transmembrane protein, was found to be associated with angiogenesis. This study aims to investigate the role of GPNMB in DR. The levels of GPNMB and Integrin β1 were detected by real-time PCR and western blot and were found to be increased in human retinal microvascular endothelial cells (HRMECs) with high glucose (HG, 25 mmol/L) treatment. Knockdown of GPNMB was mediated by lentivirus carrying shRNA targeting GPNMB in vivo and in vitro. Functional experiments, including cell counting kit-8 (CCK-8), scratch, and tube formation assays, showed the anti-proliferative, anti-migrative, and anti-angiogenic roles of GPNMB knockdown in HRMECs using the lentivirus system following HG challenge. Additionally, increased GPNMB levels were detected in the retina of DR rats induced by a single intraperitoneal injection of streptozotocin (60 mg/kg) using real-time PCR, western blot, and immunofluorescence assays. Downregulation of GPNMB inhibited the angiogenesis and vascular endothelial growth factor production in the retina of rats with DR. Furthermore, overexpression of Integrin β1 led to increased angiogenesis in DR. Integrin β1 was indicated as a target protein of GPNMB. Upregulated-Integrin β1 restored GPNMB knockdown-induced inhibition of cell viability, migration, and tube formation in HRMECs. In conclusion, we provide evidence for the angiogenic role of GPNMB and demonstrate that silencing GPNMB may represent a therapeutic potential in the treatment of DR.
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Affiliation(s)
- Tingyu Qin
- Department of Ophthalmology, The First Affiliated Hospital of Zhengzhou University, No. 1, Jianshe East Road, Zhengzhou, Henan, People's Republic of China.
| | - Xiangying Xi
- Department of Ophthalmology, The First Affiliated Hospital of Zhengzhou University, No. 1, Jianshe East Road, Zhengzhou, Henan, People's Republic of China
| | - Zhipeng Wu
- Department of Ophthalmology, The First Affiliated Hospital of Zhengzhou University, No. 1, Jianshe East Road, Zhengzhou, Henan, People's Republic of China
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Xu Z, Chen S, Feng D, Liu Y, Wang Q, Gao T, Liu Z, Zhang Y, Chen J, Qiu L. Biological role of heparan sulfate in osteogenesis: A review. Carbohydr Polym 2021; 272:118490. [PMID: 34420746 DOI: 10.1016/j.carbpol.2021.118490] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2021] [Revised: 07/23/2021] [Accepted: 07/23/2021] [Indexed: 12/14/2022]
Abstract
Heparan sulfate (HS) is extensively expressed in cells, for example, cell membrane and extracellular matrix of most mammalian cells and tissues, playing a key role in the growth and development of life by maintaining homeostasis and implicating in the etiology and diseases. Recent studies have revealed that HS is involved in osteogenesis via coordinating multiple signaling pathways. The potential effect of HS on osteogenesis is a complicated and delicate biological process, which involves the participation of osteocytes, chondrocytes, osteoblasts, osteoclasts and a variety of cytokines. In this review, we summarized the structural and functional characteristics of HS and highlighted the molecular mechanism of HS in bone metabolism to provide novel research perspectives for the further medical research.
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Affiliation(s)
- Zhujie Xu
- Department of Orthopedics, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, Jiangsu 214023, PR China
| | - Shayang Chen
- Department of Orthopedics, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, Jiangsu 214023, PR China
| | - Dehong Feng
- Department of Orthopedics, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, Jiangsu 214023, PR China
| | - Yi Liu
- Department of Orthopedics, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, Jiangsu 214023, PR China.
| | - Qiqi Wang
- Department of Orthopedics, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, Jiangsu 214023, PR China
| | - Tianshu Gao
- Department of Orthopedics, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, Jiangsu 214023, PR China
| | - Zhenwei Liu
- Department of Orthopedics, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, Jiangsu 214023, PR China
| | - Yan Zhang
- School of Pharmaceutical Sciences, Jiangnan University, Wuxi 214122, PR China
| | - Jinghua Chen
- School of Pharmaceutical Sciences, Jiangnan University, Wuxi 214122, PR China
| | - Lipeng Qiu
- School of Pharmaceutical Sciences, Jiangnan University, Wuxi 214122, PR China.
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Shi L, Xiong Y, Hu X. MicroRNA-1254 Suppresses Epithelial-Mesenchymal Transition by Upregulating c-Cellular Myelocytomatosis Oncogene (c-Myc) and Alleviates Drug Resistance in Lung Cancer. J BIOMATER TISS ENG 2021. [DOI: 10.1166/jbt.2021.2794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Drug resistance is a huge challenge during the management of diseases. MicroRNA (miRNA) dys-regulation is known to contribute to tumor progression. Herein we aimed to explore miR-1254’s role in drug resistance in lung cancer. In the present study, we used Pabolizumab to treat
drug-resistant and non-drug resistant lung cancer cells followed by analysis of miR-1254 expression by RT-qPCR, epithelial-mesenchymal transition (EMT) related protein and c-Myc expression by western blot, E-cadherin and N-cadherin level by immunofluorescence. Additionally, mouse model of
lung cancer was treated with miR-1254 mimic and/or Pabolizumab to assess miR-1254’s role in lung cancer in vivo. Drug-resistant lung cancer cells exhibited significantly increased viability upon treatment with Pabolizumab with decreased miR-1254 expression. Besides, Pabolizumab
upregulated E-caderin and downregulated N-cadherin. Importantly, miR-1254 bound to c-Myc in cancer cells. In the presence of miR-1254 mimic or siRNA (si)-c-Myc, the chemosensitivity of lung cancer cells was increased whereas miR-1254 inhibitor augmented cell resistance to Pabolizumab. Furthermore,
the chemosensitivity induced by c-Myc could be depleted by miR-1254 inhibitor. Combined treatment of miR-1254 mimic and Pabolizumab significantly decreased tumor weight and volume, and reduced c-Myc level. In conclusion, miR-1254 might suppress EMT by inhibiting c-Myc expression in lung cancer
and decrease drug resistance.
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Affiliation(s)
- Liu Shi
- Department of Radiation and Medical Oncology, Zhongnan Hospital of Wuhan University, Hubei, 430000, China; Key Laboratory of Tumor Biological Behaviors, Zhongnan Hospital of Wuhan University, Hubei, 430000, China; Clinical Cancer Study Center, Zhongnan
Hospital of Wuhan University, Wuhan, Hubei, 430000, China
| | - Yu Xiong
- Department of Radiation and Medical Oncology, Zhongnan Hospital of Wuhan University, Hubei, 430000, China; Key Laboratory of Tumor Biological Behaviors, Zhongnan Hospital of Wuhan University, Hubei, 430000, China; Clinical Cancer Study Center, Zhongnan
Hospital of Wuhan University, Wuhan, Hubei, 430000, China
| | - Xiaoyan Hu
- Department of Radiation and Medical Oncology, Zhongnan Hospital of Wuhan University, Hubei, 430000, China; Key Laboratory of Tumor Biological Behaviors, Zhongnan Hospital of Wuhan University, Hubei, 430000, China; Clinical Cancer Study Center,
Zhongnan Hospital of Wuhan University, Wuhan, Hubei, 430000, China
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GPNMB Extracellular Fragment Protects Melanocytes from Oxidative Stress by Inhibiting AKT Phosphorylation Independent of CD44. Int J Mol Sci 2021; 22:ijms221910843. [PMID: 34639184 PMCID: PMC8509362 DOI: 10.3390/ijms221910843] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 09/30/2021] [Accepted: 10/06/2021] [Indexed: 11/24/2022] Open
Abstract
Glycoprotein non-metastatic melanoma protein B (GPNMB) is a type I transmembrane glycoprotein that plays an important role in cancer metastasis and osteoblast differentiation. In the skin epidermis, GPNMB is mainly expressed in melanocytes and plays a critical role in melanosome formation. In our previous study, GPNMB was also found to be expressed in skin epidermal keratinocytes. In addition, decreased GPNMB expression was observed in the epidermis of lesional skin of patients with vitiligo. However, the exact role of keratinocyte-derived GPNMB and its effect on vitiligo is still unknown. In this study, we demonstrated that GPNMB expression was also decreased in rhododendrol-induced leukoderma, as seen in vitiligo. The extracellular soluble form of GPNMB (sGPNMB) was found to protect melanocytes from cytotoxicity and the impairment of melanogenesis induced by oxidative stress. Furthermore, the effect of rGPNMB was not altered by the knockdown of CD44, which is a well-known receptor of GPNMB, but accompanied by the suppressed phosphorylation of AKT but not ERK, p38, or JNK. In addition, we found that oxidative stress decreased both transcriptional GPNMB expression and sGPNMB protein expression in human keratinocytes. Our results suggest that GPNMB might provide novel insights into the mechanisms related to the pathogenesis of vitiligo and leukoderma.
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Shim NY, Heo JS. Performance of the Polydopamine-Graphene Oxide Composite Substrate in the Osteogenic Differentiation of Mouse Embryonic Stem Cells. Int J Mol Sci 2021; 22:ijms22147323. [PMID: 34298943 PMCID: PMC8303500 DOI: 10.3390/ijms22147323] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Revised: 06/28/2021] [Accepted: 07/05/2021] [Indexed: 02/07/2023] Open
Abstract
Graphene oxide (GO) is a biocompatible material considered a favorable stem cell culture substrate. In this study, GO was modified with polydopamine (PDA) to facilitate depositing GO onto a tissue culture polystyrene (PT) surface, and the osteogenic performance of the PDA/GO composite in pluripotent embryonic stem cells (ESCs) was investigated. The surface chemistry of the PDA/GO-coated PT surface was analyzed by scanning electron microscopy (SEM) and X-ray photoelectron spectroscopy (XPS). A high cell viability of ESCs cultured on the PDA/GO composite-coated surface was initially ensured. Then, the osteogenic differentiation of the ESCs in response to the PDA/GO substrate was assessed by alkaline phosphatase (ALP) activity, intracellular calcium levels, matrix mineralization assay, and evaluation of the mRNA and protein levels of osteogenic factors. The culture of ESCs on the PDA/GO substrate presented higher osteogenic potency than that on the uncoated control surface. ESCs cultured on the PDA/GO substrate expressed significantly higher levels of integrin α5 and β1, as well as bone morphogenetic protein receptor (BMPR) types I and II, compared with the control groups. The phosphorylation of extracellular signal-regulated kinase (ERK)1/2, p38, and c-Jun-N-terminal kinase (JNK) mitogen-activated protein kinases (MAPKs) was observed in ESCs culture on the PDA/GO substrate. Moreover, BMP signal transduction by SMAD1/5/8 phosphorylation was increased more in cells on PDA/GO than in the control. The nuclear translocation of SMAD1/5/8 in cells was also processed in response to the PDA/GO substrate. Blocking activation of the integrin α5/β1, MAPK, or SMAD signaling pathways downregulated the PDA/GO-induced osteogenic differentiation of ESCs. These results suggest that the PDA/GO composite stimulates the osteogenic differentiation of ESCs via the integrin α5/β1, MAPK, and BMPR/SMAD signaling pathways.
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Functional Domains and Evolutionary History of the PMEL and GPNMB Family Proteins. Molecules 2021; 26:molecules26123529. [PMID: 34207849 PMCID: PMC8273697 DOI: 10.3390/molecules26123529] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Revised: 05/31/2021] [Accepted: 06/02/2021] [Indexed: 11/17/2022] Open
Abstract
The ancient paralogs premelanosome protein (PMEL) and glycoprotein nonmetastatic melanoma protein B (GPNMB) have independently emerged as intriguing disease loci in recent years. Both proteins possess common functional domains and variants that cause a shared spectrum of overlapping phenotypes and disease associations: melanin-based pigmentation, cancer, neurodegenerative disease and glaucoma. Surprisingly, these proteins have yet to be shown to physically or genetically interact within the same cellular pathway. This juxtaposition inspired us to compare and contrast this family across a breadth of species to better understand the divergent evolutionary trajectories of two related, but distinct, genes. In this study, we investigated the evolutionary history of PMEL and GPNMB in clade-representative species and identified TMEM130 as the most ancient paralog of the family. By curating the functional domains in each paralog, we identified many commonalities dating back to the emergence of the gene family in basal metazoans. PMEL and GPNMB have gained functional domains since their divergence from TMEM130, including the core amyloid fragment (CAF) that is critical for the amyloid potential of PMEL. Additionally, the PMEL gene has acquired the enigmatic repeat domain (RPT), composed of a variable number of imperfect tandem repeats; this domain acts in an accessory role to control amyloid formation. Our analyses revealed the vast variability in sequence, length and repeat number in homologous RPT domains between craniates, even within the same taxonomic class. We hope that these analyses inspire further investigation into a gene family that is remarkable from the evolutionary, pathological and cell biology perspectives.
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Meng H, Hu L, Zhou Y, Ge Z, Wang H, Wu CT, Jin J. A Sandwich Structure of Human Dental Pulp Stem Cell Sheet, Treated Dentin Matrix, and Matrigel for Tooth Root Regeneration. Stem Cells Dev 2021; 29:521-532. [PMID: 32089088 DOI: 10.1089/scd.2019.0162] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Tooth loss can cause a lot of physiological and psychological suffering. And tooth root engineering is a promising way for tooth loss treatment. Two kinds of seed cells are usually adopted for tooth root regeneration. In this study, a practical sandwich structure for tooth root regeneration was developed, which was constituted by only one kind of seed cell: human dental pulp stem cells (hDPSCs) and three kinds of graft materials: Vitamin C (VC) induced hDPSC sheet, human treated dentin matrix (hTDM), and Matrigel. It was found that VC could induce hDPSCs to form a cell sheet with two or three cell layers and promote their collagen type I (COL1) mRNA expression obviously. hDPSCs could attach and grow on hTDM, and the mRNA expression of osteocalcin (OCN), dentin sialophosphoprotein (DSPP), vascular endothelial growth factor receptor 1 (VEGFR1), and Nestin in hDPSCs was obviously upregulated by hTDM leaching solution. hDPSCs could stretch and proliferate in Matrigel. And when cultured in Matrigel condition medium, they positively expressed CD31, β3-Tubulin, and Nestin proteins, as well as increased the mRNA expression of OCN, ALP, and Nestin. Furthermore, periodontium, dentin, and pulp-like tissues were successfully regenerated after the sandwich structure of hDPSC sheet/TDM/Matrigel was transplanted in nude mice subcutaneously for 3 months. Periodontium-like dense connective tissue was regenerated around the hTDM, and a great mass of predentin was formed on the cavity side of hTDM. Odontoblast-like cells and blood vessel-like structures, even nerve-like fibers, were observed in the pulp cavity. In summary, the above results showed that hDPSCs could be used as seed cells for the whole tooth root regeneration, and the sandwich structure constituted by hDPSC sheet, TDM/hDPSCs, and Matrigel/hDPSCs could be utilized for tooth root regeneration.
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Affiliation(s)
- Hongfang Meng
- School of Chemical Engineering and Technology, Tianjin University, Tianjin, People's Republic of China.,Beijing Key Laboratory for Radiobiology, Beijing Institute of Radiation Medicine, Beijing, People's Republic of China
| | - Lei Hu
- Molecular Laboratory for Gene Therapy and Tooth Regeneration, Capital Medical University School of Stomatology, Beijing, People's Republic of China
| | - Ying Zhou
- Beijing Key Laboratory for Radiobiology, Beijing Institute of Radiation Medicine, Beijing, People's Republic of China
| | - Zhiqiang Ge
- School of Chemical Engineering and Technology, Tianjin University, Tianjin, People's Republic of China
| | - Hua Wang
- Beijing Key Laboratory for Radiobiology, Beijing Institute of Radiation Medicine, Beijing, People's Republic of China
| | - Chu-Tse Wu
- School of Chemical Engineering and Technology, Tianjin University, Tianjin, People's Republic of China.,Beijing Key Laboratory for Radiobiology, Beijing Institute of Radiation Medicine, Beijing, People's Republic of China
| | - Jide Jin
- Beijing Key Laboratory for Radiobiology, Beijing Institute of Radiation Medicine, Beijing, People's Republic of China
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Moussa FM, Cook BP, Sondag GR, DeSanto M, Obri MS, McDermott SE, Safadi FF. The role of miR-150 regulates bone cell differentiation and function. Bone 2021; 145:115470. [PMID: 32526406 DOI: 10.1016/j.bone.2020.115470] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Revised: 06/03/2020] [Accepted: 06/03/2020] [Indexed: 01/08/2023]
Abstract
BACKGROUND mir-RNAs play a role in regulating bone homeostasis. In this study we assessed the functional role of mir-RNA 150 in bone homeostasis. We also assess the effects of miR-150 deficiency on osteoblast and osteoclast differentiation and function using in vivo and in vitro approaches. METHODS Wild type (WT) (C57BL/6J) and miR-150 KO mice were compared for a variety of parameters. Micro-CT imaging was conducted to quantify trabecular bone mass inferior to the distal growth plate of the femur. Von Kossa staining was performed for osteoblast culture mineralization. RT-qPCR, biochemical analysis and bone histomorphometry were utilized for quantification of relevant genes and serum protein measurements. Differentiation and function of osteoblasts and osteoclasts was performed using primarily cultures and assessed the cell autonomous response of mir-RNA-150 on cell differentiation and function. RESULTS Mir-150 exhibited expression in a variety of tissues and increases progressively with age. Through micro-CT imaging, we found that KO mice presented reduced bone mass at 4, 8, and 16 weeks of age compared to WT mice. Furthermore, histomorphometric analysis revealed increased trabecular separation, decreased bone thickness, and decreased osteoblast number in KO compared to WT mice. Mir-150 deficiency also correlated with higher bone resorption, accompanied with significant increases in CTX-1 serum levels, and a decrease in cell apoptotic rate ex vivo. Additionally, miR-150 KO mice showed increased osteoblast differentiation and decreased osteoclastogenesis ex vivo. Luciferase assay showed increased Osteoactivin/GPNMB expression in miR-150 KO osteoblasts compared to WT cells. CONCLUSION Our data suggests that miR-150 influences osteoblast and osteoclast functionality and differentiation; specifically, miR-150 serves as a negative regulator for osteoblasts and a positive regulator for osteoclasts by regulating, at least in part, Osteoactivin/GPNMB expression.
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Affiliation(s)
- Fouad M Moussa
- Department of Anatomy and Neurobiology, Northeast Ohio Medical University (NEOMED), College of Medicine, Rootstown, OH, United States of America; Musculoskeletal Research Group, NEOMED, Rootstown, OH, United States of America; School of Biomedical Sciences, Kent State University, Kent, OH, United States of America
| | - Bryson P Cook
- Department of Anatomy and Neurobiology, Northeast Ohio Medical University (NEOMED), College of Medicine, Rootstown, OH, United States of America; Musculoskeletal Research Group, NEOMED, Rootstown, OH, United States of America
| | - Greg R Sondag
- Department of Anatomy and Neurobiology, Northeast Ohio Medical University (NEOMED), College of Medicine, Rootstown, OH, United States of America; Musculoskeletal Research Group, NEOMED, Rootstown, OH, United States of America; School of Biomedical Sciences, Kent State University, Kent, OH, United States of America
| | - Matthew DeSanto
- Department of Anatomy and Neurobiology, Northeast Ohio Medical University (NEOMED), College of Medicine, Rootstown, OH, United States of America; Musculoskeletal Research Group, NEOMED, Rootstown, OH, United States of America
| | - Mark S Obri
- Department of Anatomy and Neurobiology, Northeast Ohio Medical University (NEOMED), College of Medicine, Rootstown, OH, United States of America; Musculoskeletal Research Group, NEOMED, Rootstown, OH, United States of America
| | - Scott E McDermott
- Department of Orthopaedics, SUMMA Health System, Rebecca D. Considine Research Institute, Akron Children's Hospital, Akron, OH, United States of America
| | - Fayez F Safadi
- Department of Anatomy and Neurobiology, Northeast Ohio Medical University (NEOMED), College of Medicine, Rootstown, OH, United States of America; Musculoskeletal Research Group, NEOMED, Rootstown, OH, United States of America; School of Biomedical Sciences, Kent State University, Kent, OH, United States of America; Department of Orthopaedics, SUMMA Health System, Rebecca D. Considine Research Institute, Akron Children's Hospital, Akron, OH, United States of America.
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Extracellular vesicles from GPNMB-modified bone marrow mesenchymal stem cells attenuate bone loss in an ovariectomized rat model. Life Sci 2021; 272:119208. [PMID: 33582177 DOI: 10.1016/j.lfs.2021.119208] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Revised: 02/04/2021] [Accepted: 02/04/2021] [Indexed: 01/08/2023]
Abstract
AIMS The efficacy of anti-osteoporotic treatments is still limited. Our study aimed to investigate the effect of extracellular vesicles (EVs) derived from bone marrow-derived MSCs (BMSCs) overexpressing glycoprotein non-melanoma clone B (GPNMB) on osteoporosis (OP). MAIN METHODS Lentiviral vector for GPNMB overexpression or its negative control was generated and transfected into BMSCs. EVs enriched with GPNMB (GPNMB-EVs) were extracted from GPNMB-modified BMSC-conditioned medium and then identified. Cellular uptake and proliferation were analyzed using the Dil-labeled assay and CCK-8 assay, respectively. Cytochemical staining, western blot, and RT-qPCR analysis were performed to assess the effect of GPNMB-EVs on osteogenic differentiation of BMSCs in vitro. Dickkopf-1 (DKK1) as the inhibitor was applied to explore the Wnt/β-catenin signaling pathway involved in the GPNMB-EV-induced osteogenic differentiation. In vivo experiments were conducted using an ovariectomized (OVX) rat model of postmenopausal osteoporosis, and then assessed the effect of GPNMB-EVs by micro-CT, and histological and immunohistochemical assays. KEY FINDINGS GPNMB-EVs were taken up by BMSCs, and they noticeably promoted the proliferation of BMSCs. Additionally, GPNMB-EVs activated the Wnt/β-catenin signaling to stimulate osteogenesis in BMSCs. In vivo examination showed that GPNMB-EVs remarkably improved trabecular bone regeneration and alleviated the osteoporotic phenotype in the OVX-induced rat model of OP. SIGNIFICANCE EVs derived from GPNMB-modified BMSCs significantly stimulated the proliferation and osteogenic differentiation of BMSCs via the activation of Wnt/β-catenin signaling and attenuated the bone loss in the OVX-induced rat model of OP. Our findings suggest the promising potential of GPNMB-EVs as cell-free therapy for the treatment of OP.
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Cherian P, Al-Khairi I, Jamal M, Al-Sabah S, Ali H, Dsouza C, Alshawaf E, Al-Ali W, Al-Khaledi G, Al-Mulla F, Abu-Farha M, Abubaker J. Association Between Factors Involved in Bone Remodeling (Osteoactivin and OPG) With Plasma Levels of Irisin and Meteorin-Like Protein in People With T2D and Obesity. Front Endocrinol (Lausanne) 2021; 12:752892. [PMID: 34777249 PMCID: PMC8588843 DOI: 10.3389/fendo.2021.752892] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Accepted: 10/08/2021] [Indexed: 01/05/2023] Open
Abstract
The musculoskeletal system consisting of bones and muscles have been recognized as endocrine organs secreting hormones that are involved in regulating metabolic and inflammatory pathways. Obesity and type 2 diabetes (T2D) are associated with several musculoskeletal system complications. We hypothesized that an interaction exists between adipomyokines namely, irisin and METRNL, and various molecules involved in bone remodeling in individuals with obesity and T2D. A total of 228 individuals were enrolled in this study, including 124 non-diabetic (ND) and 104 T2D. A Multiplex assay was used to assess the level of various osteogenic molecules namely osteoactivin, Syndecan, osteoprotegerin (OPG) and osteonectin/SPARC. Our data shows elevated levels of Osteoactivin, Syndecan, OPG and SPARC in T2D as compared to ND individuals (p ≤ 0.05). Using Spearman's correlation, a positive correlation was observed between irisin and Osteoactivin as well as OPG (p < 0.05). Similarly, a positive association was observed between METRNL and Osteoactivin (p < 0.05). The strong positive association shown in this study between irisin, METRNL and various molecules with osteogenic properties emphasize a possible interaction between these organs. This report suggests that having a dysregulation in the level of the aforementioned molecules could potentially affect the development of bone and muscle related complications that are associated with obesity and T2D.
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Affiliation(s)
- Preethi Cherian
- Department of Biochemistry and Molecular Biology, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Irina Al-Khairi
- Department of Biochemistry and Molecular Biology, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Mohammad Jamal
- Department of Surgery, Faculty of Medicine, Health Sciences Centre, Kuwait University, Sulaibekhat, Kuwait
| | - Suleiman Al-Sabah
- Department of Pharmacology & Toxicology, Faculty of Medicine, Kuwait University, Safat, Kuwait
| | - Hamad Ali
- Department of Genetic and Bioinformatics, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Carol Dsouza
- Department of Surgery, Faculty of Medicine, Health Sciences Centre, Kuwait University, Sulaibekhat, Kuwait
| | - Eman Alshawaf
- Department of Biochemistry and Molecular Biology, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Waleed Al-Ali
- Department of Surgery, Faculty of Medicine, Health Sciences Centre, Kuwait University, Sulaibekhat, Kuwait
| | - Ghanim Al-Khaledi
- Department of Pharmacology & Toxicology, Faculty of Medicine, Kuwait University, Safat, Kuwait
| | - Fahd Al-Mulla
- Department of Genetic and Bioinformatics, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Mohamed Abu-Farha
- Department of Biochemistry and Molecular Biology, Dasman Diabetes Institute, Kuwait City, Kuwait
- *Correspondence: Mohamed Abu-Farha, ; Jehad Abubaker,
| | - Jehad Abubaker
- Department of Biochemistry and Molecular Biology, Dasman Diabetes Institute, Kuwait City, Kuwait
- *Correspondence: Mohamed Abu-Farha, ; Jehad Abubaker,
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Liu Y, Xu Z, Wang Q, Jiang Y, Wang R, Chen S, Zhu J, Zhang Y, Chen J. Selective regulation of RANKL/RANK/OPG pathway by heparan sulfate through the binding with estrogen receptor β in MC3T3-E1 cells. Int J Biol Macromol 2020; 161:1526-1534. [DOI: 10.1016/j.ijbiomac.2020.07.308] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Revised: 07/12/2020] [Accepted: 07/29/2020] [Indexed: 02/09/2023]
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13
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The soluble glycoprotein NMB (GPNMB) produced by macrophages induces cancer stemness and metastasis via CD44 and IL-33. Cell Mol Immunol 2020; 18:711-722. [PMID: 32728200 DOI: 10.1038/s41423-020-0501-0] [Citation(s) in RCA: 60] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Accepted: 06/30/2020] [Indexed: 12/13/2022] Open
Abstract
In cancer, myeloid cells have tumor-supporting roles. We reported that the protein GPNMB (glycoprotein nonmetastatic B) was profoundly upregulated in macrophages interacting with tumor cells. Here, using mouse tumor models, we show that macrophage-derived soluble GPNMB increases tumor growth and metastasis in Gpnmb-mutant mice (DBA/2J). GPNMB triggers in the cancer cells the formation of self-renewing spheroids, which are characterized by the expression of cancer stem cell markers, prolonged cell survival and increased tumor-forming ability. Through the CD44 receptor, GPNMB mechanistically activates tumor cells to express the cytokine IL-33 and its receptor IL-1R1L. We also determined that recombinant IL-33 binding to IL-1R1L is sufficient to induce tumor spheroid formation with features of cancer stem cells. Overall, our results reveal a new paracrine axis, GPNMB and IL-33, which is activated during the cross talk of macrophages with tumor cells and eventually promotes cancer cell survival, the expansion of cancer stem cells and the acquisition of a metastatic phenotype.
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Tsou PS, Sawalha AH. Glycoprotein nonmetastatic melanoma protein B: A key mediator and an emerging therapeutic target in autoimmune diseases. FASEB J 2020; 34:8810-8823. [PMID: 32445534 DOI: 10.1096/fj.202000651] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Accepted: 05/04/2020] [Indexed: 12/21/2022]
Abstract
The glycoprotein nonmetastatic melanoma protein B (GPNMB, also known as osteoactivin) is highly expressed in many cell types and regulates the homeostasis in various tissues. In different physiological contexts, it functions as a melanosome-associated protein, membrane-bound surface receptor, soluble ligand, or adhesion molecule. Therefore, GPNMB is involved in cell differentiation, migration, inflammation, metabolism, and neuroprotection. Because of its various involvement in different physiological conditions, GPNMB has been implicated in many diseases, including cancer, neurological disorders, and more recently immune-mediated diseases. This review summarizes the regulation and function of GPNMB in normal physiology, and discusses the involvement of GPNMB in disease conditions with a particular focus on its potential role and therapeutic implications in autoimmunity.
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Affiliation(s)
- Pei-Suen Tsou
- Division of Rheumatology, Department of Internal Medicine, University of Michigan, Ann Arbor, MI, USA
| | - Amr H Sawalha
- Division of Rheumatology, Department of Pediatrics, University of Pittsburgh School of Medicine, UPMC Children's Hospital of Pittsburgh, Pittsburgh, PA, USA.,Division of Rheumatology and Clinical Immunology, Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA.,Lupus Center of Excellence, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
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15
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Budge KM, Neal ML, Richardson JR, Safadi FF. Transgenic Overexpression of GPNMB Protects Against MPTP-Induced Neurodegeneration. Mol Neurobiol 2020; 57:2920-2933. [PMID: 32436108 DOI: 10.1007/s12035-020-01921-6] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Accepted: 04/22/2020] [Indexed: 12/14/2022]
Abstract
Parkinson's disease (PD) is a progressive neurodegenerative disease highlighted by a marked loss of dopaminergic cell loss and motor disturbances. Currently, there are no drugs that slow the progression of the disease. A myriad of factors have been implicated in the pathogenesis and progression of PD including neuroinflammation. Although anti-inflammatory agents are being evaluated as potential disease-modifying therapies for PD, none has proven effective to date, suggesting that new and novel targets are needed. Glycoprotein nonmetastatic melanoma protein B (GPNMB) is a transmembrane glycoprotein that has recently been shown to reduce inflammation in astrocytes and to be increased in post-mortem PD brain samples. Here we show that transgenic overexpression of GPNMB protects against dopaminergic neurodegeneration in a 1-methyl-4-phenyl-1,2,3,6-tetrahydropridine mouse model of Parkinson's disease. Furthermore, GPNMB overexpression reduces gliosis and prevented microglial morphological changes following MPTP treatment compared with wild-type MPTP-treated mice. Additionally, recombinant GPNMB attenuates LPS-induced inflammation in primary mouse microglia. These results suggest a neuroprotective and anti-inflammatory role for GPNMB and warrant further investigation for GPNMB as a novel therapy for PD.
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Affiliation(s)
- Kevin M Budge
- School of Biomedical Sciences, Kent State University, Kent, OH, USA.,Department of Anatomy and Neurobiology, Northeast Ohio Medical University, Rootstown, OH, USA
| | - Matthew L Neal
- Department of Pharmaceutical Sciences, Northeast Ohio Medical University, Rootstown, OH, USA.,Department of Environmental Health Sciences, Robert Stempel School of Public Health and Social Work, Florida International University, Miami, FL, USA
| | - Jason R Richardson
- Department of Pharmaceutical Sciences, Northeast Ohio Medical University, Rootstown, OH, USA. .,Department of Environmental Health Sciences, Robert Stempel School of Public Health and Social Work, Florida International University, Miami, FL, USA.
| | - Fayez F Safadi
- School of Biomedical Sciences, Kent State University, Kent, OH, USA. .,Department of Anatomy and Neurobiology, Northeast Ohio Medical University, Rootstown, OH, USA. .,Rebecca D. Considine Research Institute, Akron Children's Hospital, Akron, OH, USA.
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16
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Lv Y, Huang Y, Xu M, Heng BC, Yang C, Cao C, Hu Z, Liu W, Chi X, Gao M, Zhang X, Wei Y, Deng X. The miR-193a-3p-MAP3k3 Signaling Axis Regulates Substrate Topography-Induced Osteogenesis of Bone Marrow Stem Cells. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2020; 7:1901412. [PMID: 31921551 PMCID: PMC6947707 DOI: 10.1002/advs.201901412] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/09/2019] [Revised: 09/30/2019] [Indexed: 06/10/2023]
Abstract
Substrate topographical features induce osteogenic differentiation of bone marrow stem cells (BMSCs), but the underlying mechanisms are unclear. As microRNAs (miRNAs) play key roles in osteogenesis and bone regeneration, it would be meaningful to elucidate the roles of miRNAs in the intracellular signaling cascade of topographical cue-induced osteogenic differentiation. In this study, the miRNA expression profile of the topographical feature-induced osteogenic differentiation group is different from that of the chemical-factors-induced osteogenic differentiation group. miR-193a-3p is sensitive to substrate topographical features and its downregulation enhances osteogenic differentiation only in the absence of osteogenesis-inducing medium. Also, substrate topographical features specifically activate a nonclassical osteogenetic pathway-the mitogen-activated protein kinase (MAPK) pathway. Loss- and gain-of-function experiments demonstrate that miR-193a-3p regulates the MAPK pathway by targeting the MAP3k3 gene. In conclusion, this data indicates that different osteogenic-lineage-related intracellular signaling cascades are triggered in BMSCs subjected to biophysical or chemical stimulation. Moreover, the miR-193a-3p-MAP3k3 signaling axis plays a pivotal role in the transduction of biophysical cues from the substrate to regulate the osteogenic lineage specification of BMSCs, and hence may be a promising molecular target for bone regenerative therapies.
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Affiliation(s)
- Yan Lv
- Department of Geriatric DentistryNMPA Key Laboratory for Dental MaterialsNational Engineering Laboratory for Digital and Material Technology of StomatologyBeijing Laboratory of Biomedical MaterialsPeking University School and Hospital of StomatologyBeijing100081P. R. China
| | - Ying Huang
- Department of Geriatric DentistryNMPA Key Laboratory for Dental MaterialsNational Engineering Laboratory for Digital and Material Technology of StomatologyBeijing Laboratory of Biomedical MaterialsPeking University School and Hospital of StomatologyBeijing100081P. R. China
| | - Mingming Xu
- Department of Geriatric DentistryNMPA Key Laboratory for Dental MaterialsNational Engineering Laboratory for Digital and Material Technology of StomatologyBeijing Laboratory of Biomedical MaterialsPeking University School and Hospital of StomatologyBeijing100081P. R. China
| | - Boon Chin Heng
- Department of Geriatric DentistryNMPA Key Laboratory for Dental MaterialsNational Engineering Laboratory for Digital and Material Technology of StomatologyBeijing Laboratory of Biomedical MaterialsPeking University School and Hospital of StomatologyBeijing100081P. R. China
| | - Congchong Yang
- Department of Cariology and EndodontologyPeking University School and Hospital of StomatologyBeijing100081P. R. China
| | - Cen Cao
- Department of StomatologyUnion HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan430022P. R. China
| | - Zhewen Hu
- Department of Geriatric DentistryNMPA Key Laboratory for Dental MaterialsNational Engineering Laboratory for Digital and Material Technology of StomatologyBeijing Laboratory of Biomedical MaterialsPeking University School and Hospital of StomatologyBeijing100081P. R. China
| | - Wenwen Liu
- Department of Geriatric DentistryNMPA Key Laboratory for Dental MaterialsNational Engineering Laboratory for Digital and Material Technology of StomatologyBeijing Laboratory of Biomedical MaterialsPeking University School and Hospital of StomatologyBeijing100081P. R. China
| | - Xiaopei Chi
- Department of Geriatric DentistryNMPA Key Laboratory for Dental MaterialsNational Engineering Laboratory for Digital and Material Technology of StomatologyBeijing Laboratory of Biomedical MaterialsPeking University School and Hospital of StomatologyBeijing100081P. R. China
| | - Min Gao
- Department of Geriatric DentistryNMPA Key Laboratory for Dental MaterialsNational Engineering Laboratory for Digital and Material Technology of StomatologyBeijing Laboratory of Biomedical MaterialsPeking University School and Hospital of StomatologyBeijing100081P. R. China
| | - Xuehui Zhang
- Department of Dental Materials and Dental Medical Devices Testing CenterPeking University School and Hospital of StomatologyBeijing100081P. R. China
| | - Yan Wei
- Department of Geriatric DentistryNMPA Key Laboratory for Dental MaterialsNational Engineering Laboratory for Digital and Material Technology of StomatologyBeijing Laboratory of Biomedical MaterialsPeking University School and Hospital of StomatologyBeijing100081P. R. China
| | - Xuliang Deng
- Department of Geriatric DentistryNMPA Key Laboratory for Dental MaterialsNational Engineering Laboratory for Digital and Material Technology of StomatologyBeijing Laboratory of Biomedical MaterialsPeking University School and Hospital of StomatologyBeijing100081P. R. China
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Hu H, Zhao C, Zhang P, Liu Y, Jiang Y, Wu E, Xue H, Liu C, Li Z. miR-26b modulates OA induced BMSC osteogenesis through regulating GSK3β/β-catenin pathway. Exp Mol Pathol 2019; 107:158-164. [PMID: 30768922 DOI: 10.1016/j.yexmp.2019.02.003] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Revised: 01/29/2019] [Accepted: 02/11/2019] [Indexed: 12/15/2022]
Abstract
BACKGROUNDS Osteoactivin (OA) is a key regulator promoting bone marrow stromal cells osteogenesis progress, while Dexamethasone (Dex) could inhibit OA induced osteogenesis and lead to osteoporosis. miR-26b increased during BMSC osteogenesis but whether it participates in this progress is enigma. Osteogenesis is under regulation of canonical Wnt signaling pathway which could serve as potential target for miR-26b. It bears therapeutic potential if miR-26b could regulate osteogenesis and antagonize Dex induced Osteoporosis (OP). METHODS BMSC were isolated from bone marrow of rats and induced for osteogenesis by OA administration. We detected miR-26b mRNA level together with osteogenesis related genes or Wnt signal pathway related genes by qRT-PCR. BMSC cells with miR-26b inhibitor or mimics revealed the effect of miR-26b on osteogenesis. The osteogenesis efficiency was detected by Alizarin Red staining and ALP activity. Protein level of canonical Wnt signal pathway and other proteins were detected by Western blot. The interaction between miR-26b and GSK3β was detected by dual luciferase reporter assay. RESULTS We found that miR-26b was increased during OA induced BMSC osteogenesis. Inhibiting miR-26b could lead to osteogenesis inhibition while miR-26b mimics could promote this progress. The key regulator of Wnt signal pathway GSK3β is down-regulated when miR-26b was overexpressed, resulting in β-catenin activation. Since Dex could promote GSK3β expression and inhibit Wnt signal, miR-26b could also alleviate Dex induced osteogenesis inhibition. CONCLUSION Our findings indicate that miR-26b promoted BMSC osteogenesis by directly targeting GSK3β and activating canonical Wnt signal pathway, suggesting miR-26b might be serve as potential therapeutic candidate of osteoporosis.
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Affiliation(s)
- He Hu
- Department of Orthopedics, The Inner Mongolia People's Hospital, Hohhot 010017, Inner Mongolia, PR.China
| | - Chuanlong Zhao
- Department of Orthopedics, Ordos Central Hospital, Ordos 017000, Inner Mongolia, PR.China
| | - Peiguang Zhang
- Department of Orthopedics, The Third Affiliated Hospital, Inner Mongolia Medical University, Baotou, 014010, Inner Mongolia, PR.China
| | - Yalong Liu
- Department of Orthopedics, Yangling, Demonstration Zone hospital District Hospital Xianyang 712100, Xian, PR.China
| | - Yulian Jiang
- Department of Orthopedics, The Third Affiliated Hospital, Inner Mongolia Medical University, Baotou, 014010, Inner Mongolia, PR.China
| | - Enquan Wu
- Department of Orthopedics, The Inner Mongolia People's Hospital, Hohhot 010017, Inner Mongolia, PR.China
| | - Hao Xue
- Department of Orthopedics, The Third Affiliated Hospital, Inner Mongolia Medical University, Baotou, 014010, Inner Mongolia, PR.China
| | - Caiyun Liu
- Hunan Youcheng Biotechnology Co. Ltd, Changsha, 410000, China
| | - Zhehai Li
- Department of Orthopedics, Beijing Northern Hospital, China North Industries, Beijing 100089, PR.China.; Inner Mongolia Medical University, Hohhot 014010, Inner Mongolia, PR.China..
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Bhattacharyya S, Feferman L, Sharma G, Tobacman JK. Increased GPNMB, phospho-ERK1/2, and MMP-9 in cystic fibrosis in association with reduced arylsulfatase B. Mol Genet Metab 2018; 124:168-175. [PMID: 29703589 DOI: 10.1016/j.ymgme.2018.02.012] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/25/2017] [Revised: 02/17/2018] [Accepted: 02/17/2018] [Indexed: 10/18/2022]
Abstract
BACKGROUND GPNMB was increased in a CF gene array and in Arylsulfatase B (ARSB; N-acetylgalactosamine-4-sulfatase)-null mice, consistent with previous reports that ARSB is reduced in cystic fibrosis (CF). Implications of GPNMB increase in CF are unknown. METHODS GPNMB levels were determined in serum and circulating leukocytes from CF patients and healthy controls. GPNMB binding with β-1 integrin and measurements of phospho-ERK1/2 and MMP-9 in CFTR-uncorrected, CFTR-corrected, and normal human bronchial epithelial cells (BEC) were determined, following ARSB and GPNMB knockdown, and treatment with RGD peptide, and ERK phosphorylation inhibitor. RESULTS GPNMB was markedly increased in CF patients compared to controls (p < 0.0001, unpaired t-test, two-tailed). Silencing GPNMB, treatment with excess RGD peptide, and treatment with ERK phosphorylation inhibitor blocked ARSB silencing-induced increases in MMP-9 in the normal BEC. CONCLUSIONS Findings suggest that decline in ARSB activity caused by decline in CFTR function leads to increased GPNMB, which may contribute to organ dysfunction in CF by increased MMP-9 expression.
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Affiliation(s)
- Sumit Bhattacharyya
- Department of Medicine, College of Medicine, University of Illinois at Chicago, Chicago, IL, USA; Jesse Brown VAMC, Chicago, IL, 60612, USA
| | - Leo Feferman
- Department of Medicine, College of Medicine, University of Illinois at Chicago, Chicago, IL, USA; Jesse Brown VAMC, Chicago, IL, 60612, USA
| | - Girish Sharma
- Department of Pediatrics, Rush University Medical Center, Chicago, IL 60612, USA
| | - Joanne K Tobacman
- Department of Medicine, College of Medicine, University of Illinois at Chicago, Chicago, IL, USA; Jesse Brown VAMC, Chicago, IL, 60612, USA.
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19
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Hu H, Li Z, Lu M, Yun X, Li W, Liu C, Guo A. Osteoactivin inhibits dexamethasone-induced osteoporosis through up-regulating integrin β1 and activate ERK pathway. Biomed Pharmacother 2018; 105:66-72. [PMID: 29843046 DOI: 10.1016/j.biopha.2018.05.051] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Revised: 05/07/2018] [Accepted: 05/09/2018] [Indexed: 12/18/2022] Open
Abstract
BACKGROUNDS Dexamethasone (Dex) is widely used in autoimmune diseases and inflammation treatment. A sever side effect of prolonged exposure to Dex is increased risk of osteoporosis (OP) or even femoral head necrosis, which would cause much suffer to patients. To reveal the mechanism behind this phenomenon, provide therapeutic guidance and potential target, we analyzed the inhibitory mechanism of Dex on osteogenesis of rat-BMSC. METHODS Rat BMSC were obtained and characterized with FACS analysis. Osteogenesis and adipogenesis abilities were detected with Oil-O-Red staining, Alizarin Red staining and ALP activity analysis. These BMSC were then treated with Dex in combination with recombinant OA or not and detected for osteogenesis related gene expression with qRT-PCR. Protein interaction and expression were detected by Co-Immunoprecipitation and western blot. RESULTS Osteoactivin (OA) could promote integrin β 1 expression and interact with this protein physically, leading to ERK activation and promoting osteogenesis related genes' expression including Runx2, Col1a and OCN in BMSC. Dex, however, could block expression of several upstream genes of OA and decrease OA mRNA and protein level, and eventually suppress integrin β1-ERK activation and lead to decreased osteogenesis, which could finally develop into OP. CONCLUSION Recombinant OA treated BMSC exerted better osteogenesis potency even with Dex administration. This is because additional OA in medium counter-acts with Dex's influence and rescued osteoblast differentiation via up-regulating integrin β1 and activate ERK/MAPK pathway which promotes osteogenesis. Hence, OA/integrin β1 could serve as potential therapeutic target for OP.
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Affiliation(s)
- He Hu
- Department of Orthopedics, Beijing Friendship Hospital, Capital Medical University, Beijing, 100050, PR China; Department of Orthopedics, The Inner Mongolia People's Hospital, Hohhot, 010017, Inner Mongolia, PR China
| | - Zhehai Li
- Department of Orthopedics, Beijing Northern Hospital, China North Industries, Beijing, 100089, PR China; Inner Mongolia Medical University, Hohhot, 014010, Inner Mongolia, PR China
| | - Min Lu
- Department of Orthopedics, The Inner Mongolia People's Hospital, Hohhot, 010017, Inner Mongolia, PR China
| | - Xinyi Yun
- Department of Orthopedics, The Third Affiliated Hospital, Inner Mongolia Medical University, Baotou, 014010, Inner Mongolia, PR China
| | - Wei Li
- School of Biomedical Engineering, Capital Medical University, Beijing, 100069, PR China
| | - Caiyun Liu
- Hunan Youcheng Biotechnology Co. Ltd, Changsha, 410000, PR China
| | - Ai Guo
- Department of Orthopedics, Beijing Friendship Hospital, Capital Medical University, Beijing, 100050, PR China.
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20
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Barbe MF, Massicotte VS, Assari S, Monroy MA, Frara N, Harris MY, Amin M, King T, Cruz GE, Popoff SN. Prolonged high force high repetition pulling induces osteocyte apoptosis and trabecular bone loss in distal radius, while low force high repetition pulling induces bone anabolism. Bone 2018; 110:267-283. [PMID: 29476978 PMCID: PMC5878749 DOI: 10.1016/j.bone.2018.02.014] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/19/2017] [Revised: 01/23/2018] [Accepted: 02/16/2018] [Indexed: 01/14/2023]
Abstract
We have an operant rat model of upper extremity reaching and grasping in which we examined the impact of performing a high force high repetition (High-ForceHR) versus a low force low repetition (Low-ForceHR) task for 18weeks on the radius and ulna, compared to age-matched controls. High-ForceHR rats performed at 4 reaches/min and 50% of their maximum voluntary pulling force for 2h/day, 3days/week. Low-ForceHR rats performed at 6% maximum voluntary pulling force. High-ForceHR rats showed decreased trabecular bone volume in the distal metaphyseal radius, decreased anabolic indices in this same bone region (e.g., decreased osteoblasts and bone formation rate), and increased catabolic indices (e.g., microcracks, increased osteocyte apoptosis, secreted sclerostin, RANKL, and osteoclast numbers), compared to controls. Distal metaphyseal trabeculae in the ulna of High-ForceHR rats showed a non-significant decrease in bone volume, some catabolic indices (e.g., decreased trabecular numbers) yet also some anabolic indices (e.g., increased osteoblasts and trabecular thickness). In contrast, the mid-diaphyseal region of High-ForceHR rats' radial and ulnar bones showed few to no microarchitecture differences and no changes in apoptosis, sclerostin or RANKL levels, compared to controls. In further contrast, Low-ForceHR rats showed increased trabecular bone volume in the radius in the distal metaphysis and increased cortical bone area its mid-diaphysis. These changes were accompanied by increased anabolic indices, no microcracks or osteocyte apoptosis, and decreased RANKL in each region, compared to controls. Ulnar bones of Low-ForceHR rats also showed increased anabolic indices, although fewer than in the adjacent radius. Thus, prolonged performance of an upper extremity reaching and grasping task is loading-, region-, and bone-dependent, with high force loads at high repetition rates inducing region-specific increases in bone degradative changes that were most prominent in distal radial trabeculae, while low force task loads at high repetition rates induced adaptive bone responses.
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Affiliation(s)
- Mary F Barbe
- Lewis Katz School of Medicine at Temple University, Department of Anatomy and Cell Biology, Philadelphia, PA 19140, United States.
| | - Vicky S Massicotte
- Lewis Katz School of Medicine at Temple University, Department of Anatomy and Cell Biology, Philadelphia, PA 19140, United States
| | - Soroush Assari
- Temple University College of Engineering, Department of Mechanical Engineering, Philadelphia, PA 19122, United States
| | - M Alexandra Monroy
- Perelman School of Medicine, University of Pennsylvania, Department of Radiation Oncology, Philadelphia, PA 19104, United States
| | - Nagat Frara
- Lewis Katz School of Medicine at Temple University, Department of Anatomy and Cell Biology, Philadelphia, PA 19140, United States
| | - Michele Y Harris
- Lewis Katz School of Medicine at Temple University, Department of Anatomy and Cell Biology, Philadelphia, PA 19140, United States
| | - Mamta Amin
- Lewis Katz School of Medicine at Temple University, Department of Anatomy and Cell Biology, Philadelphia, PA 19140, United States
| | - Tamara King
- College of Osteopathic Medicine, Department of Biomedical Sciences, Biddeford, ME 04005, United States
| | - Geneva E Cruz
- Lewis Katz School of Medicine at Temple University, Department of Anatomy and Cell Biology, Philadelphia, PA 19140, United States
| | - Steve N Popoff
- Lewis Katz School of Medicine at Temple University, Department of Anatomy and Cell Biology, Philadelphia, PA 19140, United States
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Taya M, Hammes SR. Glycoprotein Non-Metastatic Melanoma Protein B (GPNMB) and Cancer: A Novel Potential Therapeutic Target. Steroids 2018; 133:102-107. [PMID: 29097143 PMCID: PMC6166407 DOI: 10.1016/j.steroids.2017.10.013] [Citation(s) in RCA: 58] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/22/2017] [Accepted: 10/26/2017] [Indexed: 10/18/2022]
Abstract
Glycoprotein non-metastatic melanoma protein B (GPNMB) is a transmembrane protein enriched on the cell surface of cancer cells, including melanoma, glioblastoma, and triple-negative breast cancer. There is growing evidence identifying GPNMB as a tumor-promoter; however, despite its biological and clinical significance, the molecular mechanisms engaged by GPNMB to promote tumorigenesis are not well understood. GPNMB promotes aggressive behaviors such as tumor cell proliferation, migration, and invasion. The extracellular domain of GPNMB shed from the cell surface interacts with integrins to facilitate in the recruitment of immune-suppressive and pro-angiogenic cells to the tumor microenvironment, thereby enhancing tumor migration and invasion. GPNMB also modulates receptor tyrosine kinases and integrin signaling in a cell autonomous fashion, leading to downstream kinase signaling that in turn triggers the expression and secretion of tumorigenic factors such as matrix metalloproteinases (MMPs) and cytokines. Therefore, GPNMB exerts its pro-tumorigenic role both intracellularly and in a paracrine fashion through shedding its extracellular domain. This review highlights the importance of GPNMB in cancer progression and discusses molecular mediators of GPNMB-induced tumor growth and invasion.
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Affiliation(s)
- Manisha Taya
- Division of Endocrinology and Metabolism, Department of Medicine, University of Rochester Medical Center, Rochester, NY 14642, USA; Department of Pharmacology and Physiology, University of Rochester School of Medicine and Dentistry, Rochester, NY 14642, USA.
| | - Stephen R Hammes
- Division of Endocrinology and Metabolism, Department of Medicine, University of Rochester Medical Center, Rochester, NY 14642, USA; Department of Pharmacology and Physiology, University of Rochester School of Medicine and Dentistry, Rochester, NY 14642, USA.
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Ravanetti F, Gazza F, D'Arrigo D, Graiani G, Zamuner A, Zedda M, Manfredi E, Dettin M, Cacchioli A. Enhancement of peri-implant bone osteogenic activity induced by a peptidomimetic functionalization of titanium. Ann Anat 2018; 218:165-174. [PMID: 29679720 DOI: 10.1016/j.aanat.2018.01.011] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2017] [Revised: 01/11/2018] [Accepted: 01/22/2018] [Indexed: 12/18/2022]
Abstract
Osteoblast cell adhesion to the extracellular matrix is established through two main pathways: one is mediated by the binding between integrin and a minimal adhesion sequence (RGD) on the extracellular protein, the other is based on the interactions between transmembrane proteoglycans and heparin-binding sequences found in many matrix proteins. The aim of this study is the evaluation in an in vivo endosseous implant model of the early osteogenic response of the peri-implant bone to a biomimetic titanium surface functionalized with the retro-inverso 2DHVP peptide, an analogue of Vitronectin heparin binding site. The experimental plan is based on a bilateral study design of Control and 2DHVP implants inserted respectively in the right and left femur distal metaphysis of adult male Wistar rats (n=16) weighing about 300grams and evaluated after 15days. Fluorochromic bone vital markers were given in a specific time frame, in order to monitor the dynamic of new bone deposition. The effect inducted by the peptidomimetic coating on the surrounding bone were qualitatively and quantitatively evaluated by means of static and dynamic histomorphometric analyses performed within three concentric and subsequent circular Regions of Interest (ROI) of equivalent thickness (220μm), ROI1 adjacent to the interface, ROI2, the middle, and ROI3 the farthest. The data indicated that these functionalized implants stimulated a higher bone apposition rate (p<0,01) and larger and rapid osteoblast activation in terms of mineralizing surface within ROI1 compared to the control (p<0,01). These higher osteoblast recruitment and activation leads to a greater bone-to-implant contact reached for DHVP samples (p<0,5). This represents an initial stimulus of the osteogenic activity that might results in a faster and better osteointegration process.
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Affiliation(s)
| | - F Gazza
- Dept. of Veterinary Sciences
| | | | - G Graiani
- Dept. of Medicine and Surgery, University of Parma
| | - A Zamuner
- Dept. of Industrial Engineering, University of Padova
| | - M Zedda
- Dept. of Veterinary Medicine, University of Sassari
| | - E Manfredi
- Dept. of Medicine and Surgery, University of Parma
| | - M Dettin
- Dept. of Industrial Engineering, University of Padova
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Neal ML, Boyle AM, Budge KM, Safadi FF, Richardson JR. The glycoprotein GPNMB attenuates astrocyte inflammatory responses through the CD44 receptor. J Neuroinflammation 2018. [PMID: 29519253 PMCID: PMC5842560 DOI: 10.1186/s12974-018-1100-1] [Citation(s) in RCA: 94] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Neuroinflammation is one of the hallmarks of neurodegenerative diseases, such as Parkinson's disease (PD). Activation of glial cells, including microglia and astrocytes, is a characteristic of the inflammatory response. Glycoprotein non-metastatic melanoma protein B (GPNMB) is a transmembrane glycoprotein that releases a soluble signaling peptide when cleaved by ADAM10 or other extracellular proteases. GPNMB has demonstrated a neuroprotective role in animal models of ALS and ischemia. However, the mechanism of this protection has not been well established. CD44 is a receptor expressed on astrocytes that can bind GPNMB, and CD44 activation has been demonstrated to reduce NFκB activation and subsequent inflammatory responses in macrophages. GPNMB signaling has not been investigated in models of PD or specifically in astrocytes. More recently, genetic studies have linked polymorphisms in GPNMB with risk for PD. Therefore, it is important to understand the role this signaling protein plays in PD. METHODS We used data mining techniques to evaluate mRNA expression of GPNMB and its receptor CD44 in the substantia nigra of PD and control brains. Immunofluorescence and qPCR techniques were used to assess GPNMB and CD44 levels in mice treated with MPTP. In vitro experiments utilized the immortalized mouse astrocyte cell line IMA2.1 and purified primary mouse astrocytes. The effects of recombinant GPNMB on cytokine-induced astrocyte activation was determined by qPCR, immunofluorescence, and measurement of nitric oxide and reactive oxygen production. RESULTS Increased GPNMB and CD44 expression was observed in the substantia nigra of human PD brains and in GFAP-positive astrocytes in an animal model of PD. GPNMB treatment attenuated cytokine-induced levels of inducible nitric oxide synthase, nitric oxide, reactive oxygen species, and the inflammatory cytokine IL-6 in an astrocyte cell line and primary mouse astrocytes. Using primary mouse astrocytes from CD44 knockout mice, we found that the anti-inflammatory effects of GPNMB are CD44-mediated. CONCLUSIONS These results demonstrate that GPNMB may exert its neuroprotective effect through reducing astrocyte-mediated neuroinflammation in a CD44-dependent manner, providing novel mechanistic insight into the neuroprotective properties of GPNMB.
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Affiliation(s)
- Matthew L Neal
- Department of Pharmaceutical Sciences, Center for Neurodegenerative Diseases and Aging, Northeast Ohio Medical University, Rootstown, OH, 44272, USA
| | - Alexa M Boyle
- Department of Pharmaceutical Sciences, Center for Neurodegenerative Diseases and Aging, Northeast Ohio Medical University, Rootstown, OH, 44272, USA.,Department of Biomedical Sciences, Kent State University, Kent, OH, 44240, USA
| | - Kevin M Budge
- Department of Pharmaceutical Sciences, Center for Neurodegenerative Diseases and Aging, Northeast Ohio Medical University, Rootstown, OH, 44272, USA.,Department of Anatomy and Neurobiology, Northeast Ohio Medical University, Rootstown, OH, 44272, USA.,Department of Biomedical Sciences, Kent State University, Kent, OH, 44240, USA
| | - Fayez F Safadi
- Department of Pharmaceutical Sciences, Center for Neurodegenerative Diseases and Aging, Northeast Ohio Medical University, Rootstown, OH, 44272, USA.,Department of Anatomy and Neurobiology, Northeast Ohio Medical University, Rootstown, OH, 44272, USA
| | - Jason R Richardson
- Department of Pharmaceutical Sciences, Center for Neurodegenerative Diseases and Aging, Northeast Ohio Medical University, Rootstown, OH, 44272, USA.
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Osteoactivin (GPNMB) ectodomain protein promotes growth and invasive behavior of human lung cancer cells. Oncotarget 2017; 7:13932-44. [PMID: 26883195 PMCID: PMC4924689 DOI: 10.18632/oncotarget.7323] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2015] [Accepted: 01/23/2016] [Indexed: 12/21/2022] Open
Abstract
The potential application of GPNMB/OA as a therapeutic target for lung cancer will require a greater understanding of the impact of GPNMB/OA ectodomain (ECD) protein shedding into tumor tissues. Thus, in this work we characterized GPNMB/OA expression and extent of shedding of its ECD protein while evaluating the impact on lung cancer progression using three non-small cell lung cancer (NSCLC) cell lines: A549, SK-MES-1 and calu-6. We observed a direct correlation (R2 = 0.89) between GPNMB/OA expression on NSCLC cells and the extent of GPNMB/OA ECD protein shedding. Meanwhile, siRNA-mediated knockdown of GPNMB/OA in cancer cells significantly reduced GPNMB/OA ECD protein shedding, migration, invasion and adhesion to extracellular matrix materials. Also, exogenous treatment of cancer cells (expressing low GPNMB/OA) with recombinant GPNMB/OA protein (rOA) significantly facilitated cell invasion and migration, but the effects of rOA was negated by inclusion of a selective RGD peptide. Further studies in athymic (nu/nu) mice-bearing calu-6 showed that intratumoral supplementation with rOA effectively facilitated in vivo tumor growth as characterized by a high number of proliferating cells (Ki67 staining) coupled with a low number of apoptotic cells. Taken together, our results accentuate the relevance of GPNMB/OA ECD protein shedding to progression of lung cancer. Thus, strategies that suppress GPNMB/OA expression on lung cancer cells as well as negate shedding of GPNMB/OA ECD protein are worthy of consideration in lung cancer therapeutics.
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25
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Yu B, Sondag GR, Malcuit C, Kim MH, Safadi FF. Macrophage-Associated Osteoactivin/GPNMB Mediates Mesenchymal Stem Cell Survival, Proliferation, and Migration Via a CD44-Dependent Mechanism. J Cell Biochem 2017; 117:1511-21. [PMID: 26442636 DOI: 10.1002/jcb.25394] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2015] [Accepted: 10/05/2015] [Indexed: 12/23/2022]
Abstract
Although MSCs have been widely recognized to have therapeutic potential in the repair of injured or diseased tissues, it remains unclear how functional activities of mesenchymal stem cells (MSCs) are influenced by the surrounding inflammatory milieu at the site of tissue injury. Macrophages constitute an essential component of innate immunity and have been shown to exhibit a phenotypic plasticity in response to various stimuli, which play a central role in both acute inflammation and wound repair. Osteoactivin (OA)/Glycoprotein non-metastatic melanoma protein B (GPNMB), a transmembrane glycoprotein that plays a role in cell differentiation, survival, and angiogenesis. The objective of this study was to investigate the potential role of OA/GPNMB in macrophage-induced MSC function. We found that reparative M2 macrophages express significantly greater levels of OA/GPNMB than pro-inflammatory M1 macrophages. Furthermore, using loss of function and rescue studies, we demonstrated that M2 macrophages-secreted OA/GPNMB positively regulates the viability, proliferation, and migration of MSCs. More importantly, we demonstrated that OA/GPNMB acts through ERK and AKT signaling pathways in MSCs via CD44, to induce these effects. Taken together, our results provide pivotal insight into the mechanism by which OA/GPNMB contributes to the tissue reparative phenotype of M2 macrophages and positively regulates functional activities of MSCs. J. Cell. Biochem. 117: 1511-1521, 2016. © 2015 Wiley Periodicals, Inc.
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Affiliation(s)
- Bing Yu
- Department of Biological Sciences, Kent State University, Kent, Ohio
| | - Gregory R Sondag
- Department of Anatomy and Neurobiology, Northeast Ohio Medical University (NEOMED), Rootstown, Ohio.,School of Biomedical of Sciences, Kent State University, Kent, OH
| | | | - Min-Ho Kim
- Department of Biological Sciences, Kent State University, Kent, Ohio
| | - Fayez F Safadi
- Department of Anatomy and Neurobiology, Northeast Ohio Medical University (NEOMED), Rootstown, Ohio.,School of Biomedical of Sciences, Kent State University, Kent, OH
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Budge KM, Neal ML, Richardson JR, Safadi FF. Glycoprotein NMB: an Emerging Role in Neurodegenerative Disease. Mol Neurobiol 2017; 55:5167-5176. [PMID: 28856541 DOI: 10.1007/s12035-017-0707-z] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2017] [Accepted: 08/01/2017] [Indexed: 12/12/2022]
Abstract
Neurodegeneration is characterized by severe neuronal loss leading to the cognitive and physical impairments that define various neurodegenerative diseases. Neuroinflammation is one hallmark of neurodegenerative diseases and can ultimately contribute to disease progression. Increased inflammatory cytokines, such as interleukin-6 (IL-6), interleukin-1β (IL-1 β), and tumor necrosis factor-α (TNF-α) are associated with Alzheimer's disease (AD), Parkinson's disease (PD), amyotrophic lateral sclerosis (ALS), and multiple sclerosis (MS). Unfortunately, current therapeutic options lack ability to stop or effectively slow progression of these diseases and are primarily aimed at alleviating symptoms. Thus, it is crucial to discover novel treatment candidates for neurodegenerative diseases. Glycoprotein nonmetastatic melanoma protein B (GPNMB) is a type-I transmembrane glycoprotein first identified in a melanoma cell line. GPNMB augments bone mineral deposition by stimulating osteoblast differentiation. Aside from its anabolic function in the bone, emerging evidence suggests that GPNMB has anti-inflammatory and reparative functions. GPNMB has also been demonstrated to be neuroprotective in an animal model of ALS, cerebral ischemia, and other disease models. Given these discoveries, GPNMB should be investigated as a potential therapeutic option for multiple neurodegenerative diseases.
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Affiliation(s)
- Kevin M Budge
- Department of Anatomy and Neurobiology, College of Medicine, Northeast Ohio Medical University (NEOMED), 4209 State Route 44, Rootstown, OH, 44224, USA.,School of Biomedical Sciences, Kent State University, Kent, OH, USA
| | - Matthew L Neal
- Department of Pharmaceutical Sciences, College of Medicine, Northeast Ohio Medical University (NEOMED), Rootstown, OH, USA
| | - Jason R Richardson
- Department of Pharmaceutical Sciences, College of Medicine, Northeast Ohio Medical University (NEOMED), Rootstown, OH, USA
| | - Fayez F Safadi
- Department of Anatomy and Neurobiology, College of Medicine, Northeast Ohio Medical University (NEOMED), 4209 State Route 44, Rootstown, OH, 44224, USA. .,School of Biomedical Sciences, Kent State University, Kent, OH, USA.
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27
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Xu Z, Chen J, Shao W, Wang R, Liu Y. [Research progress in osteogenesis and osteogenic mechanism of heparan sulfate]. ZHONGGUO XIU FU CHONG JIAN WAI KE ZA ZHI = ZHONGGUO XIUFU CHONGJIAN WAIKE ZAZHI = CHINESE JOURNAL OF REPARATIVE AND RECONSTRUCTIVE SURGERY 2017; 31:1016-1020. [PMID: 29806444 PMCID: PMC8458588 DOI: 10.7507/1002-1892.201701103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 01/23/2017] [Revised: 07/13/2017] [Indexed: 11/03/2022]
Abstract
Objective To discuss the role of heparan sulfate (HS) in bone formation and bone remodeling and summarize the research progress in the osteogenic mechanism of HS. Methods The domestic and abroad related literature about HS acting on osteoblast cell line in vitro, HS and HS composite scaffold materials acting on the ani-mal bone defect models, and the effect of HS proteoglycans on bone development were summarized and analyzed. Results Many growth factors involved in fracture healing especially heparin-binding growth factors, such as fibroblast growth factors, bone morphogenetic protein, and transforming growth factor β, are connected noncovalently with long HS chains. HS proteoglycans protect these proteins from protease degradation and are directly involved in the regulation of growth factors signaling and bone cell function. HS can promote the differentiation of stem cells into osteoblasts and enhance the differentiation of osteoblasts. In bone matrix, HS plays a significant role in promoting the formation, maintaining the stability, and accelerating the mineralization. Conclusion The osteogenesis of HS is pronounced. HS is likely to become the clinical treatment measures of fracture nonunion or delayed union, and is expected to provide more choices for bone tissue engineering with identification of its long-term safety.
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Affiliation(s)
- Zhujie Xu
- Department of Orthopedics, Wuxi People's Hospital Affiliated to Nanjing Medical University, Wuxi Jiangsu, 214000, P.R.China
| | - Jinghua Chen
- Medicinal Biopolymer Laboratory of College of Pharmacy, Jiangnan University, Wuxi Jiangsu, 214000, P.R.China
| | - Wei Shao
- Department of Orthopedics, Wuxi People's Hospital Affiliated to Nanjing Medical University, Wuxi Jiangsu, 214000, P.R.China
| | - Rui Wang
- Department of Orthopedics, Wuxi People's Hospital Affiliated to Nanjing Medical University, Wuxi Jiangsu, 214000, P.R.China
| | - Yi Liu
- Department of Orthopedics, Wuxi People's Hospital Affiliated to Nanjing Medical University, Wuxi Jiangsu, 214000, P.R.China;Medicinal Biopolymer Laboratory of College of Pharmacy, Jiangnan University, Wuxi Jiangsu, 214000,
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Rose AAN, Biondini M, Curiel R, Siegel PM. Targeting GPNMB with glembatumumab vedotin: Current developments and future opportunities for the treatment of cancer. Pharmacol Ther 2017; 179:127-141. [PMID: 28546082 DOI: 10.1016/j.pharmthera.2017.05.010] [Citation(s) in RCA: 58] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
GPNMB has emerged as an immunomodulator and an important positive mediator of tumor progression and metastasis in numerous solid cancers. Tumor intrinsic GPNMB-mediated effects on cellular signaling, coupled with the ability of GPNMB to influence the primary tumor and metastatic microenvironments in a non-cell autonomous fashion, combine to augment malignant cancer phenotypes. In addition, GPNMB is often overexpressed in a variety of cancers, making it an attractive therapeutic target. In this regard, glembatumumab vedotin, an antibody-drug conjugate (ADC) that targets GPNMB, is currently in clinical trials as a single agent in multiple cancers. In this review, we will describe the physiological functions of GPNMB in normal tissues and summarize the processes through which GPNMB augments tumor growth and metastasis. We will review the pre-clinical and clinical development of glembatumumab vedotin, evaluate on-going clinical trials, explore emerging opportunities for this agent in new disease indications and discuss exciting possibilities for this ADC in the context of combination therapies.
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Affiliation(s)
- April A N Rose
- Goodman Cancer Research Centre, McGill University, Montréal, Québec, Canada; Department of Medicine, McGill University, Montréal, Québec, Canada
| | - Marco Biondini
- Goodman Cancer Research Centre, McGill University, Montréal, Québec, Canada; Department of Medicine, McGill University, Montréal, Québec, Canada
| | | | - Peter M Siegel
- Goodman Cancer Research Centre, McGill University, Montréal, Québec, Canada; Department of Medicine, McGill University, Montréal, Québec, Canada; Department of Biochemistry, McGill University, Montréal, Québec, Canada; Department of Anatomy and Cell Biology, McGill University, Montréal, Québec, Canada; Department of Oncology, McGill University, Montréal, Québec, Canada.
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Romero-Gavilán F, Gomes NC, Ródenas J, Sánchez A, Azkargorta M, Iloro I, Elortza F, García Arnáez I, Gurruchaga M, Goñi I, Suay J. Proteome analysis of human serum proteins adsorbed onto different titanium surfaces used in dental implants. BIOFOULING 2017; 33:98-111. [PMID: 28005415 DOI: 10.1080/08927014.2016.1259414] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2016] [Accepted: 10/31/2016] [Indexed: 06/06/2023]
Abstract
Titanium dental implants are commonly used due to their biocompatibility and biochemical properties; blasted acid-etched Ti is used more frequently than smooth Ti surfaces. In this study, physico-chemical characterisation revealed important differences in roughness, chemical composition and hydrophilicity, but no differences were found in cellular in vitro studies (proliferation and mineralization). However, the deposition of proteins onto the implant surface might affect in vivo osseointegration. To test that hypothesis, protein layers formed on discs of both surface type after incubation with human serum were analysed. Using mass spectrometry (LC/MS/MS), 218 proteins were identified, 30 of which were associated with bone metabolism. Interestingly, Apo E, antithrombin and protein C adsorbed mostly onto blasted and acid-etched Ti, whereas the proteins of the complement system (C3) were found predominantly on smooth Ti surfaces. These results suggest that physico-chemical characteristics could be responsible for the differences observed in the adsorbed protein layer.
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Affiliation(s)
- Francisco Romero-Gavilán
- a Department of Industrial Systems and Design Engineering , University of Castellón , Castellón de la Plana , Spain
| | - N C Gomes
- b Department of Medicine , University of Castellón , Castellón de la Plana , Spain
| | - Joaquin Ródenas
- a Department of Industrial Systems and Design Engineering , University of Castellón , Castellón de la Plana , Spain
| | - Ana Sánchez
- b Department of Medicine , University of Castellón , Castellón de la Plana , Spain
| | - Mikel Azkargorta
- c Proteomics Platform, CIC bioGUNE, CIBERehd, ProteoRed-ISCIII , Derio , Spain
| | - Ibon Iloro
- c Proteomics Platform, CIC bioGUNE, CIBERehd, ProteoRed-ISCIII , Derio , Spain
| | - Felix Elortza
- c Proteomics Platform, CIC bioGUNE, CIBERehd, ProteoRed-ISCIII , Derio , Spain
| | - Iñaki García Arnáez
- d Department of Polymer Science and Technology , University of Basque Country , San Sebastián , Spain
| | - Mariló Gurruchaga
- d Department of Polymer Science and Technology , University of Basque Country , San Sebastián , Spain
| | - Isabel Goñi
- d Department of Polymer Science and Technology , University of Basque Country , San Sebastián , Spain
| | - Julio Suay
- a Department of Industrial Systems and Design Engineering , University of Castellón , Castellón de la Plana , Spain
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Wang YG, Han XG, Yang Y, Qiao H, Dai KR, Fan QM, Tang TT. Functional differences between AMPK α1 and α2 subunits in osteogenesis, osteoblast-associated induction of osteoclastogenesis, and adipogenesis. Sci Rep 2016; 6:32771. [PMID: 27600021 PMCID: PMC5013406 DOI: 10.1038/srep32771] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2016] [Accepted: 08/15/2016] [Indexed: 12/21/2022] Open
Abstract
The endocrine role of the skeleton-which is impaired in human diseases including osteoporosis, obesity and diabetes-has been highlighted previously. In these diseases, the role of AMPK, a sensor and regulator of energy metabolism, is of biological and clinical importance. Since AMPK’s main catalytic subunit α has two isoforms, it is unclear whether functional differences between them exist in the skeletal system. The current study overexpressed AMPKα1 and α2 in MC3T3-E1 cells, primary osteoblasts and mouse BMSCs by lentiviral transduction. Cells overexpressing AMPKα2 showed higher osteogenesis potential than AMPKα1, wherein androgen receptor (AR) and osteoactivin played important roles. RANKL and M-CSF were secreted at lower levels from cells overexpressing α2 than α1, resulting in decreased osteoblast-associated osteoclastogenesis. Adipogenesis was inhibited to a greater degree in 3T3-L1 cells overexpressing α2 than α1, which was modulated by AR. An abnormal downregulation of AMPKα2 was observed in human BMSCs exhibiting the fibrous dysplasia (FD) phenotype. Overexpression of AMPKα2 in these cells rescued the defect in osteogenesis, suggesting that AMPKα2 plays a role in FD pathogenesis. These findings highlight functional differences between AMPKα1 and α2, and provide a basis for investigating the molecular mechanisms of diseases associated with impaired functioning of the skeletal system.
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Affiliation(s)
- Yu-Gang Wang
- Shanghai Key Laboratory of Orthopedic Implants, Department of Orthopedic Surgery, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, 639 Zhizaoju Road, Shanghai 200011, People's Republic of China
| | - Xiu-Guo Han
- Shanghai Key Laboratory of Orthopedic Implants, Department of Orthopedic Surgery, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, 639 Zhizaoju Road, Shanghai 200011, People's Republic of China
| | - Ying Yang
- Shanghai Key Laboratory of Orthopedic Implants, Department of Orthopedic Surgery, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, 639 Zhizaoju Road, Shanghai 200011, People's Republic of China
| | - Han Qiao
- Shanghai Key Laboratory of Orthopedic Implants, Department of Orthopedic Surgery, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, 639 Zhizaoju Road, Shanghai 200011, People's Republic of China
| | - Ke-Rong Dai
- Shanghai Key Laboratory of Orthopedic Implants, Department of Orthopedic Surgery, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, 639 Zhizaoju Road, Shanghai 200011, People's Republic of China
| | - Qi-Ming Fan
- Shanghai Key Laboratory of Orthopedic Implants, Department of Orthopedic Surgery, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, 639 Zhizaoju Road, Shanghai 200011, People's Republic of China
| | - Ting-Ting Tang
- Shanghai Key Laboratory of Orthopedic Implants, Department of Orthopedic Surgery, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, 639 Zhizaoju Road, Shanghai 200011, People's Republic of China
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Voudouri K, Nikitovic D, Berdiaki A, Papachristou DJ, Tsiaoussis J, Spandidos DA, Tsatsakis AM, Tzanakakis GN. Heparin regulates B6FS cell motility through a FAK/actin cytoskeleton axis. Oncol Rep 2016; 36:2471-2480. [PMID: 27572115 PMCID: PMC5055209 DOI: 10.3892/or.2016.5057] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2016] [Accepted: 08/11/2016] [Indexed: 02/06/2023] Open
Abstract
Soft tissue sarcomas are rare, heterogeneous tumors of mesenchymal origin with an aggressive behavior. Heparin is a mixture of heavily sulfated, linear glycosaminoglycan (GAG) chains, which participate in the regulation of various cell biological functions. Heparin is considered to have significant anticancer capabilities, although the mechanisms involved have not been fully defined. In the present study, the effects of unfractionated heparin (UFH) and low-molecular-weight heparin (LMWH) on B6FS fibrosarcoma cell motility were examined. Both preparations of heparin were shown to both enhance B6FS cell adhesion (p<0.01 and p<0.05), and migration (p<0.05), the maximal effect being evident at the concentration of 10 µg/ml. The utilization of FAK-deficient cells demonstrated that the participation of FAK was obligatory for heparin-dependent fibrosarcoma cell adhesion (p<0.05). The results of confocal microscopy indicated that heparin was taken up by the B6FS cells, and that UFH and LMWH induced F-actin polymerization. Heparitinase digestion demonstrated that the endogenous heparan sulfate (HS) chains did not affect the motility of the B6FS cells (p>0.05, not significant). In conclusion, both UFH and LMWH, through a FAK/actin cytoskeleton axis, promoted the adhesion and migration of B6FS fibrosarcoma cells. Thus, our findings indicate that the responsiveness of fibrosarcoma cells to the exogenous heparin/HS content of the cancer microenvironment may play a role in their ability to become mobile and metastasize.
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Affiliation(s)
- Kallirroi Voudouri
- Laboratory of Anatomy‑Histology‑Embryology, School of Medicine, University of Crete, Heraklion 71003, Greece
| | - Dragana Nikitovic
- Laboratory of Anatomy‑Histology‑Embryology, School of Medicine, University of Crete, Heraklion 71003, Greece
| | - Aikaterini Berdiaki
- Laboratory of Anatomy‑Histology‑Embryology, School of Medicine, University of Crete, Heraklion 71003, Greece
| | - Dionysios J Papachristou
- Laboratory of Anatomy‑Histology‑Embryology, School of Medicine, University of Patras, Patras 23001, Greece
| | - John Tsiaoussis
- Laboratory of Anatomy‑Histology‑Embryology, School of Medicine, University of Crete, Heraklion 71003, Greece
| | - Demetrios A Spandidos
- Laboratory of Virology, School of Medicine, University of Crete, Heraklion 71003, Greece
| | - Aristides M Tsatsakis
- Laboratory of Toxicology, School of Medicine, University of Crete, Heraklion 71003, Greece
| | - George N Tzanakakis
- Laboratory of Anatomy‑Histology‑Embryology, School of Medicine, University of Crete, Heraklion 71003, Greece
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Abstract
INTRODUCTION Osteoactivin (OA) was first discovered in an osteopetrotic rat model using mRNA differential display a decade ago and has been studied recently. OA in bone tissue can directly or indirectly regulate the differentiation of osteoblasts by influencing cell behaviours, such as proliferation and adhesion, as well as inducing serial signal cascades, which would be of great importance in the field of tissue engineering. The results of recent studies have further demonstrated that OA plays a critical role in the differentiation and function of cells, especially in bone formation and fracture healing. Areas covered: The discovery, structure, and function of OA as well as its therapeutic potential in tissue regeneration of bone defects, kidney injury, liver damage, and muscle atrophy. Expert opinion: OA has great potential in promoting the regeneration of damaged tissues, particularly bone tissue, which is supported by a large body of data. Future studies should focus on exploring the underlying mechanism of OA as well as pursuing the ideal form of OA-related regenerative medicine.
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Affiliation(s)
- Yuyang Huang
- a Department of Orthopaedic Surgery , The First Affiliated Hospital of Guangzhou Medical University , Guangzhou , China.,b Guangdong Key Laboratory of Orthopaedic Technology and Implant Materials , The First Affiliated Hospital of Guangzhou Medical University , Guangzhou , China
| | - Bo Bai
- a Department of Orthopaedic Surgery , The First Affiliated Hospital of Guangzhou Medical University , Guangzhou , China.,b Guangdong Key Laboratory of Orthopaedic Technology and Implant Materials , The First Affiliated Hospital of Guangzhou Medical University , Guangzhou , China
| | - Yongchang Yao
- a Department of Orthopaedic Surgery , The First Affiliated Hospital of Guangzhou Medical University , Guangzhou , China.,b Guangdong Key Laboratory of Orthopaedic Technology and Implant Materials , The First Affiliated Hospital of Guangzhou Medical University , Guangzhou , China
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Ball H, Moussa F, Mbimba T, Orman R, Safadi F, Cooper L. Methods and insights from the characterization of osteoprogenitor cells of bats (Mammalia: Chiroptera). Stem Cell Res 2016; 17:54-61. [DOI: 10.1016/j.scr.2016.05.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/28/2016] [Revised: 05/19/2016] [Accepted: 05/20/2016] [Indexed: 01/14/2023] Open
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Arosarena OA, Dela Cadena RA, Denny MF, Bryant E, Barr EW, Thorpe R, Safadi FF. Osteoactivin Promotes Migration of Oral Squamous Cell Carcinomas. J Cell Physiol 2016; 231:1761-70. [PMID: 26636434 DOI: 10.1002/jcp.25279] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2015] [Accepted: 12/03/2015] [Indexed: 12/26/2022]
Abstract
Nearly 50% of patients with oral squamous cell carcinoma (OSCC) die of metastases or locoregional recurrence. Metastasis is mediated by cancer cell adhesion, migration, and invasion. Osteoactivin (OA) overexpression plays a role in metastases in several malignancies. The aims were to determine how integrin interactions modulate OA-induced OSCC cell migration; and to investigate OA effects on cell survival and proliferation. We confirmed OA mRNA and protein overexpression in OSCC cell lines. We assessed OA's interactions with integrins using adhesion inhibition assays, fluorescent immunocytochemistry and co-immunoprecipitation. We investigated OA-mediated activation of mitogen-activated protein kinases (MAPKs) and cell survival. Integrin inhibition effects on OA-mediated cell migration were determined. We assessed effects of OA knock-down on cell migration and proliferation. OA is overexpressed in OSCC cell lines, and serves as a migration-promoting adhesion molecule. OA co-localized with integrin subunits, and co-immunoprecipitated with the subunits. Integrin blocking antibodies, especially those directed against the β1 subunit, inhibited cell adhesion (P = 0.03 for SCC15 cells). Adhesion to OA activated MAPKs in UMSCC14a cells and OA treatment promoted survival of SCC15 cells. Integrin-neutralizing antibodies enhanced cell migration with OA in the extracellular matrix. OA knock-down resulted in decreased proliferation of SCC15 and SCC25 cells, but did not inhibit cell migration. OA in the extracellular matrix promotes OSCC cell adhesion and migration, and may be a novel target in the prevention of HNSCC spread. J. Cell. Physiol. 231: 1761-1770, 2016. © 2015 Wiley Periodicals, Inc.
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Affiliation(s)
- Oneida A Arosarena
- Department of Otolaryngology-Head and Neck Surgery, Temple University School of Medicine, Philadelphia, Pennsylvania.,Department of Anatomy and Cell Biology, Temple University School of Medicine, Philadelphia, Pennsylvania
| | - Raul A Dela Cadena
- Department of Anatomy and Cell Biology, Temple University School of Medicine, Philadelphia, Pennsylvania.,Department of Physiology, Temple University School of Medicine, Philadelphia, Pennsylvania
| | - Michael F Denny
- Department of Medicine, Section of Rheumatology, Temple University School of Medicine, Philadelphia, Pennsylvania
| | - Evan Bryant
- Pennsylvania State University, University Park, Pennsylvania
| | - Eric W Barr
- Department of Physiology, Temple University School of Medicine, Philadelphia, Pennsylvania
| | - Ryan Thorpe
- Temple University School of Medicine, Philadelphia, Pennsylvania
| | - Fayez F Safadi
- Department of Anatomy and Neurobiology, Northeast Ohio Medical University, Rootstown, Ohio
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GPNMB cooperates with neuropilin-1 to promote mammary tumor growth and engages integrin α5β1 for efficient breast cancer metastasis. Oncogene 2015; 34:5494-504. [PMID: 25772243 DOI: 10.1038/onc.2015.8] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2014] [Revised: 12/23/2014] [Accepted: 01/14/2015] [Indexed: 12/17/2022]
Abstract
Glycoprotein nmb (GPNMB) promotes breast tumor growth and metastasis and its expression in tumor epithelium correlates with poor prognosis in breast cancer patients. Despite its biological and clinical significance, little is known regarding the molecular mechanisms engaged by GPNMB. Herein, we show that GPNMB engages distinct functional domains and mechanisms to promote primary tumor growth and metastasis. We demonstrate that neuropilin-1 (NRP-1) expression is increased in breast cancer cells that overexpress GPNMB. Interestingly, the GPNMB-driven increase in NRP-1 expression potentiated vascular endothelial growth factor signaling in breast cancer cells and was required for the growth, but not metastasis, of these cells in vivo. Interrogation of RNAseq data sets revealed a positive correlation between GPNMB and NRP-1 levels in human breast tumors. Furthermore, we ascribe pro-growth and pro-metastatic functions of GPNMB to its ability to bind α5β1 integrin and increase downstream signaling in breast cancer cells. We show that GPNMB enhances breast cancer cell adhesion to fibronectin, increases α5β1 expression and associates with this receptor through its RGD motif. GPNMB recruitment into integrin complexes activates Src and Fak signaling pathways in an RGD-dependent manner. Importantly, both the RGD motif and cytoplasmic tail of GPNMB are required to promote primary mammary tumor growth; however, only mutation of the RGD motif impaired the formation of lung metastases. Together, these findings identify novel and distinct molecular mediators of GPNMB-induced breast cancer growth and metastasis.
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Ma T, Ge XY, Jia SN, Jiang X, Zhang Y, Lin Y. The influence of titanium surfaces treated by alkalis on macrophage and osteoblast-like cell adhesion and gene expression in vitro. RSC Adv 2015. [DOI: 10.1039/c5ra10701f] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
The effect of alkali-treated titanium surfaces on inflammation-related gene expression of macrophages and alkaline phosphatase activity of osteoblast-like cells.
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Affiliation(s)
- Ting Ma
- Department of Oral Implantology
- Peking University
- School of Stomatology
- Beijing 100081
- P.R. China
| | - Xi-Yuan Ge
- Central Laboratory
- Peking University School and Hospital of Stomatology
- Beijing 100081
- China
| | - Sheng-Nan Jia
- Department of Oral Implantology
- Peking University
- School of Stomatology
- Beijing 100081
- P.R. China
| | - Xi Jiang
- Department of Oral Implantology
- Peking University
- School of Stomatology
- Beijing 100081
- P.R. China
| | - Yu Zhang
- Department of Oral Implantology
- Peking University
- School of Stomatology
- Beijing 100081
- P.R. China
| | - Ye Lin
- Department of Oral Implantology
- Peking University
- School of Stomatology
- Beijing 100081
- P.R. China
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Halldin A, Jimbo R, Johansson CB, Gretzer C, Jacobsson M. Improved osseointegration and interlocking capacity with dual acid-treated implants: a rabbit study. Clin Oral Implants Res 2014; 27:22-30. [PMID: 25349918 DOI: 10.1111/clr.12507] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/28/2014] [Indexed: 12/28/2022]
Abstract
AIM To investigate how osseointegration is affected by different nano- and microstructures. The hypothesis was that the surface structure created by dual acid treatment (AT-1), applied on a reduced topography, might achieve equivalent biomechanical performance as a rougher surface treated with hydrofluoric acid (HF). MATERIALS AND METHODS In a preclinical rabbit study, three groups (I, II, and III) comprised of test and control implants were inserted in 30 rabbits. The microstructures of the test implants were either produced by blasting with coarse (I) or fine (II) titanium particles or remained turned (III). All test implants were thereafter treated with AT-1 resulting in three different test surfaces. The microstructure of the control implants was produced by blasting with coarse titanium particles thereafter treated with HF. The surface topography was characterized by interferometry. Biomechanical (removal torque) and histomorphometric (bone-implant contact; bone area) performances were measured after 4 or 12 weeks of healing. RESULTS Removal torque measurement demonstrated that test implants in group I had an enhanced biomechanical performance compared to that of the control despite similar surface roughness value (Sa ). At 4 weeks of healing, group II test implants showed equivalent biomechanical performance to that of the control, despite a decreased Sa value. Group III test implants showed decreased biomechanical performance to that of the control. CONCLUSIONS The results of the present study suggest that nano- and microstructure alteration by AT-1 on a blasted implant might enhance the initial biomechanical performance, while for longer healing time, the surface interlocking capacity seems to be more important.
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Affiliation(s)
- Anders Halldin
- Department of Prosthodontics, Faculty of Odontology, Malmö University, Malmö, Sweden.,DENTSPLY Implants AB, Mölndal, Sweden
| | - Ryo Jimbo
- Department of Prosthodontics, Faculty of Odontology, Malmö University, Malmö, Sweden
| | - Carina B Johansson
- Dental Materials, Department of Prosthodontics, Institute of Odontology, The Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | | | - Magnus Jacobsson
- Department of Prosthodontics, Faculty of Odontology, Malmö University, Malmö, Sweden.,DENTSPLY Implants AB, Mölndal, Sweden
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Hou L, Zhang Y, Yang Y, Xiang K, Tan Q, Guo Q. Intrathecal siRNA Against GPNMB Attenuates Nociception in a Rat Model of Neuropathic Pain. J Mol Neurosci 2014; 55:533-40. [DOI: 10.1007/s12031-014-0379-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2014] [Accepted: 07/07/2014] [Indexed: 01/08/2023]
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Li X, Chen X, Miao G, Liu H, Mao C, Yuan G, Liang Q, Shen X, Ning C, Fu X. Synthesis of radial mesoporous bioactive glass particles to deliver osteoactivin gene. J Mater Chem B 2014; 2:7045-7054. [DOI: 10.1039/c4tb00883a] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Synthesis of radial mesoporous bioactive glass particles to deliver osteoactivin gene.
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Affiliation(s)
- Xian Li
- School of Materials Science and Engineering
- South China University of Technology
- Guangzhou 510641, China
- National Engineering Research Center for Tissue Restoration and Reconstruction
- South China University of Technology
| | - Xiaofeng Chen
- School of Materials Science and Engineering
- South China University of Technology
- Guangzhou 510641, China
- National Engineering Research Center for Tissue Restoration and Reconstruction
- South China University of Technology
| | - Guohou Miao
- School of Materials Science and Engineering
- South China University of Technology
- Guangzhou 510641, China
- National Engineering Research Center for Tissue Restoration and Reconstruction
- South China University of Technology
| | - Hui Liu
- School of Materials Science and Engineering
- South China University of Technology
- Guangzhou 510641, China
- National Engineering Research Center for Tissue Restoration and Reconstruction
- South China University of Technology
| | - Cong Mao
- School of Materials Science and Engineering
- South China University of Technology
- Guangzhou 510641, China
- National Engineering Research Center for Tissue Restoration and Reconstruction
- South China University of Technology
| | - Guang Yuan
- School of Materials Science and Engineering
- South China University of Technology
- Guangzhou 510641, China
- National Engineering Research Center for Tissue Restoration and Reconstruction
- South China University of Technology
| | - Qiming Liang
- School of Materials Science and Engineering
- South China University of Technology
- Guangzhou 510641, China
- National Engineering Research Center for Tissue Restoration and Reconstruction
- South China University of Technology
| | - Xiongjun Shen
- School of Materials Science and Engineering
- South China University of Technology
- Guangzhou 510641, China
- National Engineering Research Center for Tissue Restoration and Reconstruction
- South China University of Technology
| | - Chengyun Ning
- School of Materials Science and Engineering
- South China University of Technology
- Guangzhou 510641, China
- National Engineering Research Center for Tissue Restoration and Reconstruction
- South China University of Technology
| | - Xiaoling Fu
- School of Materials Science and Engineering
- South China University of Technology
- Guangzhou 510641, China
- National Engineering Research Center for Tissue Restoration and Reconstruction
- South China University of Technology
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