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Freiberger RN, López CAM, Palma MB, Cevallos C, Sviercz FA, Jarmoluk P, García MN, Quarleri J, Delpino MV. HIV Modulates Osteoblast Differentiation via Upregulation of RANKL and Vitronectin. Pathogens 2024; 13:800. [PMID: 39338991 PMCID: PMC11435243 DOI: 10.3390/pathogens13090800] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2024] [Revised: 09/06/2024] [Accepted: 09/13/2024] [Indexed: 09/30/2024] Open
Abstract
Bone loss is a prevalent characteristic among people with HIV (PWH). We focused on mesenchymal stem cells (MSCs) and osteoblasts, examining their susceptibility to different HIV strains (R5- and X4-tropic) and the subsequent effects on bone tissue homeostasis. Our findings suggest that MSCs and osteoblasts are susceptible to R5- and X4-tropic HIV but do not support productive HIV replication. HIV exposure during the osteoblast differentiation process revealed that the virus could not alter mineral and organic matrix deposition. However, the reduction in runt-related transcription factor 2 (RUNX2) transcription, the increase in the transcription of nuclear receptor activator ligand kappa B (RANKL), and the augmentation of vitronectin deposition strongly suggested that X4- and R5-HIV could affect bone homeostasis. This study highlights the HIV ability to alter MSCs' differentiation into osteoblasts, critical for maintaining bone and adipose tissue homeostasis and function.
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Affiliation(s)
- Rosa Nicole Freiberger
- Laboratorio de Inmunopatología Viral, Instituto de Investigaciones Biomédicas en Retrovirus y Sida (INBIRS), Universidad de Buenos Aires, Consejo de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires 1121, Argentina
| | - Cynthia Alicia Marcela López
- Laboratorio de Inmunopatología Viral, Instituto de Investigaciones Biomédicas en Retrovirus y Sida (INBIRS), Universidad de Buenos Aires, Consejo de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires 1121, Argentina
| | - María Belén Palma
- Cátedra de Citología, Histología y Embriología, Facultad de Ciencias Médicas, Universidad Nacional de La Plata, La Plata 1900, Argentina
- Laboratorio de Investigación Aplicada a Neurociencias (LIAN), Fleni, Consejo de Investigaciones Científicas y Técnicas (CONICET), Escobar 1625, Argentina
| | - Cintia Cevallos
- Laboratorio de Inmunopatología Viral, Instituto de Investigaciones Biomédicas en Retrovirus y Sida (INBIRS), Universidad de Buenos Aires, Consejo de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires 1121, Argentina
| | - Franco Agustin Sviercz
- Laboratorio de Inmunopatología Viral, Instituto de Investigaciones Biomédicas en Retrovirus y Sida (INBIRS), Universidad de Buenos Aires, Consejo de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires 1121, Argentina
| | - Patricio Jarmoluk
- Laboratorio de Inmunopatología Viral, Instituto de Investigaciones Biomédicas en Retrovirus y Sida (INBIRS), Universidad de Buenos Aires, Consejo de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires 1121, Argentina
| | - Marcela Nilda García
- Cátedra de Citología, Histología y Embriología, Facultad de Ciencias Médicas, Universidad Nacional de La Plata, La Plata 1900, Argentina
| | - Jorge Quarleri
- Laboratorio de Inmunopatología Viral, Instituto de Investigaciones Biomédicas en Retrovirus y Sida (INBIRS), Universidad de Buenos Aires, Consejo de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires 1121, Argentina
| | - M Victoria Delpino
- Laboratorio de Inmunopatología Viral, Instituto de Investigaciones Biomédicas en Retrovirus y Sida (INBIRS), Universidad de Buenos Aires, Consejo de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires 1121, Argentina
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2
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Sharma G, Sultana A, Abdullah KM, Pothuraju R, Nasser MW, Batra SK, Siddiqui JA. Epigenetic regulation of bone remodeling and bone metastasis. Semin Cell Dev Biol 2024; 154:275-285. [PMID: 36379849 PMCID: PMC10175516 DOI: 10.1016/j.semcdb.2022.11.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2022] [Revised: 10/28/2022] [Accepted: 11/02/2022] [Indexed: 11/13/2022]
Abstract
Bone remodeling is a continuous and dynamic process of bone formation and resorption to maintain its integrity and homeostasis. Bone marrow is a source of various cell lineages, including osteoblasts and osteoclasts, which are involved in bone formation and resorption, respectively, to maintain bone homeostasis. Epigenetics is one of the elementary regulations governing the physiology of bone remodeling. Epigenetic modifications, mainly DNA methylation, histone modifications, and non-coding RNAs, regulate stable transcriptional programs without causing specific heritable alterations. DNA methylation in CpG-rich promoters of the gene is primarily correlated with gene silencing, and histone modifications are associated with transcriptional activation/inactivation. However, non-coding RNAs regulate the metastatic potential of cancer cells to metastasize at secondary sites. Deregulated or altered epigenetic modifications are often seen in many cancers and interwound with bone-specific tropism and cancer metastasis. Histone acetyltransferases, histone deacetylase, and DNA methyltransferases are promising targets in epigenetically altered cancer. High throughput epigenome mapping and targeting specific epigenetics modifiers will be helpful in the development of personalized epi-drugs for advanced and bone metastasis cancer patients. This review aims to discuss and gather more knowledge about different epigenetic modifications in bone remodeling and metastasis. Further, it provides new approaches for targeting epigenetic changes and therapy research.
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Affiliation(s)
- Gunjan Sharma
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Ashrafi Sultana
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - K M Abdullah
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Ramesh Pothuraju
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Mohd Wasim Nasser
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE 68198, USA; Fred and Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Surinder Kumar Batra
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE 68198, USA; Fred and Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE 68198, USA; Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Jawed Akhtar Siddiqui
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE 68198, USA; Fred and Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE 68198, USA.
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Zhang H, Wang M, Wu R, Guo J, Sun A, Li Z, Ye R, Xu G, Cheng Y. From materials to clinical use: advances in 3D-printed scaffolds for cartilage tissue engineering. Phys Chem Chem Phys 2023; 25:24244-24263. [PMID: 37698006 DOI: 10.1039/d3cp00921a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/13/2023]
Abstract
Osteoarthritis caused by articular cartilage defects is a particularly common orthopedic disease that can involve the entire joint, causing great pain to its sufferers. A global patient population of approximately 250 million people has an increasing demand for new therapies with excellent results, and tissue engineering scaffolds have been proposed as a potential strategy for the repair and reconstruction of cartilage defects. The precise control and high flexibility of 3D printing provide a platform for subversive innovation. In this perspective, cartilage tissue engineering (CTE) scaffolds manufactured using different biomaterials are summarized from the perspective of 3D printing strategies, the bionic structure strategies and special functional designs are classified and discussed, and the advantages and limitations of these CTE scaffold preparation strategies are analyzed in detail. Finally, the application prospect and challenges of 3D printed CTE scaffolds are discussed, providing enlightening insights for their current research.
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Affiliation(s)
- Hewen Zhang
- School of the Faculty of Mechanical Engineering and Mechanic, Ningbo University, Ningbo, Zhejiang Province, 315211, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, P. R. China
- Zhejiang Key Laboratory of Additive Manufacturing Materials, Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, Ningbo 315201, P. R. China.
| | - Meng Wang
- Department of Joint Surgery, The Affiliated Hospital of Medical School of Ningbo University, Ningbo, 315020, China.
| | - Rui Wu
- Department of Orthopedics, Ningbo First Hospital Longshan Hospital Medical and Health Group, Ningbo 315201, P. R. China
| | - Jianjun Guo
- Zhejiang Key Laboratory of Additive Manufacturing Materials, Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, Ningbo 315201, P. R. China.
| | - Aihua Sun
- Zhejiang Key Laboratory of Additive Manufacturing Materials, Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, Ningbo 315201, P. R. China.
| | - Zhixiang Li
- Zhejiang Key Laboratory of Additive Manufacturing Materials, Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, Ningbo 315201, P. R. China.
| | - Ruqing Ye
- Department of Joint Surgery, The Affiliated Hospital of Medical School of Ningbo University, Ningbo, 315020, China.
| | - Gaojie Xu
- Zhejiang Key Laboratory of Additive Manufacturing Materials, Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, Ningbo 315201, P. R. China.
| | - Yuchuan Cheng
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, P. R. China
- Zhejiang Key Laboratory of Additive Manufacturing Materials, Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, Ningbo 315201, P. R. China.
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Anti-Osteoporosis Effects of the Fruit of Sea Buckthorn ( Hippophae rhamnoides) through Promotion of Osteogenic Differentiation in Ovariectomized Mice. Nutrients 2022; 14:nu14173604. [PMID: 36079860 PMCID: PMC9460184 DOI: 10.3390/nu14173604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Revised: 08/24/2022] [Accepted: 08/29/2022] [Indexed: 11/16/2022] Open
Abstract
The fruit of Hippophae rhamnoides has been widely used for medicinal purposes because of its anti-inflammatory, antioxidant, antiplatelet, and antimicrobial effects. Since there are no clear reports on the therapeutic efficacy of H. rhamnoides in osteoporosis, this study aimed to confirm the potential use of H. rhamnoides for the treatment of osteoporosis through its osteogenic differentiation-promoting effect in ovariectomized mice. Through an in vitro study, we compared the effects of the EtOH extract of H. rhamnoides fruits (EHRF) on the differentiation of C3H10T1/2, a mouse mesenchymal stem cell line, into osteoblasts based on alkaline phosphatase (ALP) staining and the relative expression of osteogenesis-related mRNAs. The EHRF significantly stimulated the differentiation of mesenchymal stem cells into osteoblasts and showed 7.5 times (* p < 0.05) higher osteogenesis than in the untreated control. A solvent fractionation process of EHRF showed that the hexane-soluble fraction (HRH) showed 10.4 times (** p < 0.01) higher osteogenesis than in the untreated control. Among the subfractions derived from the active HRH by preparative HPLC fractionation, HRHF4 showed 7.5 times (* p < 0.05) higher osteogenesis than in the untreated naïve cells, and HRH and HRHF4 fractions showed 22.6 times (*** p < 0.001) stronger osteogenesis activity than in the negative control. Osteoporosis was induced by excision of both ovaries in 9-week-old female ICR mice for in vivo analysis, and two active fractions, HRH and HRHF4, were administered orally for three months. During the oral administration period, body weight was measured weekly, and bone mineral density (BMD) and body fat density were measured simultaneously using a DEXA machine once a month. In particular, during the in vivo study, the average BMD of the ovariectomized group decreased by 0.0009 g/cm2, whereas the average BMD of the HRH intake group increased by 0.0033 g/cm2 (* p < 0.05) and that of the HRHF4 intake group increased by 0.0059 g/cm2 (** p < 0.01). The HRH and HRHF4 intake groups significantly recovered the mRNA and protein expression of osteogenic genes, including ALP, Osteopontin, Runx2, and Osterix, in the osteoporosis mouse tibia. These findings suggest that the active fractions of H. rhamnoides fruit significantly promoted osteoblast differentiation in mesenchymal stem cells and increased osteogenic gene expression, resulting in an improvement in bone mineral density in the osteoporosis mouse model. Taken together, H. rhamnoides fruits are promising candidates for the prevention and treatment of osteoporosis.
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Mendes BC, Pereira RDS, Mourão CFDAB, Montemezzi P, Santos AMDS, Moreno JML, Okamoto R, Hochuli-Vieira E. Evaluation of Two Beta-Tricalcium Phosphates with Different Particle Dimensions in Human Maxillary Sinus Floor Elevation: A Prospective, Randomized Clinical Trial. MATERIALS 2022; 15:ma15051824. [PMID: 35269056 PMCID: PMC8911852 DOI: 10.3390/ma15051824] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Revised: 02/16/2022] [Accepted: 02/21/2022] [Indexed: 11/30/2022]
Abstract
This study aimed to compare two beta-tricalcium phosphates with different particle sizes in human maxillary sinuses lifting. The immunolabeling of cells for RUNX2 and VEGF were performed to evaluate the osteoblast precursor cells and the vascular formation after 6 months of bone repair. Ten maxillary sinuses were grafted with autogenous bone graft (Group 1), 10 were grafted with ChronOs® (Group 2), and 10 were grafted with BETA-TCP® (Group 3). After 6 months of bone healing, biopsies were obtained to assess the new bone formed by histomorphometric and immunohistochemical evaluation for RUNX2 and VEGF. The mean bone formation for Group 1 was 51.4 ± 17.4%. Group 2 presented 45.5 ± 9.9%, and Group 3 conferred 35.4 ± 8.0% of new bone formation. The RUNX2 offered low for Groups 1 and 2 with high cellular activity for osteoblast in Group 3. The VEGF immunolabeling was moderate for Groups 1 and 2 and intense for Group 3. In conclusion, it was possible to show that the bone substitutes evaluated in the present study presented suitable outcomes for bone regeneration, being an alternative for the autogenous bone graft in maxillary sinus bone height reconstruction.
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Affiliation(s)
- Bruno Coelho Mendes
- Department of Oral & Maxillofacial Surgery, Aracatuba School of Dentistry, Sao Paulo State University, Sao Paulo 16066-840, Brazil; (A.M.d.S.S.); (E.H.-V.)
- Correspondence: (B.C.M.); (C.F.d.A.B.M.); Tel.: +55-(18)-36363270 (B.C.M.); +1-(941)-830-1302 (C.F.d.A.B.M.)
| | - Rodrigo dos Santos Pereira
- Department of Oral & Maxillofacial Surgery, University of Grande Rio—UNIGRANRIO, Rio de Janeiro 25071-202, Brazil;
| | - Carlos Fernando de Almeida Barros Mourão
- Clinical Research Unit of the Antonio Pedro Hospital, Fluminense Federal University, Niteroi 24033-900, Brazil;
- Correspondence: (B.C.M.); (C.F.d.A.B.M.); Tel.: +55-(18)-36363270 (B.C.M.); +1-(941)-830-1302 (C.F.d.A.B.M.)
| | - Pietro Montemezzi
- Clinical Research Unit of the Antonio Pedro Hospital, Fluminense Federal University, Niteroi 24033-900, Brazil;
| | - Anderson Maikon de Souza Santos
- Department of Oral & Maxillofacial Surgery, Aracatuba School of Dentistry, Sao Paulo State University, Sao Paulo 16066-840, Brazil; (A.M.d.S.S.); (E.H.-V.)
| | - Jéssica Monique Lopes Moreno
- Department of Dental Prosthesis, Aracatuba School of Dentistry, Sao Paulo State University, Sao Paulo 16066-840, Brazil;
| | - Roberta Okamoto
- Department of Human Anatomy, Aracatuba School of Dentistry, Sao Paulo State University, Sao Paulo 16066-840, Brazil;
| | - Eduardo Hochuli-Vieira
- Department of Oral & Maxillofacial Surgery, Aracatuba School of Dentistry, Sao Paulo State University, Sao Paulo 16066-840, Brazil; (A.M.d.S.S.); (E.H.-V.)
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Duan X, Pan Q, Guo L. Chronic Sleep Deprivation Impaired Bone Formation in Growing Rats and Down-Regulated PI3K/AKT Signaling in Bone Tissues. Nat Sci Sleep 2022; 14:697-710. [PMID: 35444481 PMCID: PMC9015811 DOI: 10.2147/nss.s351850] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Accepted: 04/06/2022] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND This study aimed to assess the effects of chronic sleep deprivation (CSD) on bone metabolism in growing rats and the likely underlying mechanism. METHODS Twenty 5-week-old male Wistar rats and randomly divided into the CSD and normal control (NC) groups after one-week acclimatization. After a 6-week intervention of sleep deprivation, the distal femurs of both groups were harvested for micro-computed tomography scans and histological analysis. Meanwhile, the femur tissues were measured the mRNA and protein expression via RNA sequencing and immunohistochemical analysis. Serum bone turnover markers were evaluated at 0, 2, 4, and 6 weeks. RESULTS CSD impaired the bone growth, showing an imbalance of bone turnover status, dysphasia in the metaphysis growth plate, and deterioration of bone microarchitecture. Further, CSD suppressed bone formation, showing that the expression of osteogenesis-related proteins (col1α1 and osteocalcin) and mRNA (igf1, bglap, runx2, col1α1, pth1r) are down-regulated. Differentially expressed genes were detected, and functional enrichment analyses revealed that the PI3K/AKT pathway was significantly down-regulated in the CSD group. CONCLUSION These results suggest that CSD can significantly impaire bone health, and it may exert these effects in part by suppressing bone formation and osteoblast differentiation, and inactivating the PI3K/AKT signaling pathway.
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Affiliation(s)
- Xiaoye Duan
- Department of Endocrinology, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing, People's Republic of China.,Graduate School of Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, People's Republic of China
| | - Qi Pan
- Department of Endocrinology, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing, People's Republic of China
| | - Lixin Guo
- Department of Endocrinology, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing, People's Republic of China.,Graduate School of Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, People's Republic of China
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Dalle Carbonare L, Antoniazzi F, Gandini A, Orsi S, Bertacco J, Li Vigni V, Minoia A, Griggio F, Perduca M, Mottes M, Valenti MT. Two Novel C-Terminus RUNX2 Mutations in Two Cleidocranial Dysplasia (CCD) Patients Impairing p53 Expression. Int J Mol Sci 2021; 22:ijms221910336. [PMID: 34638677 PMCID: PMC8508986 DOI: 10.3390/ijms221910336] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Revised: 09/16/2021] [Accepted: 09/20/2021] [Indexed: 11/16/2022] Open
Abstract
Cleidocranial dysplasia (CCD), a dominantly inherited skeletal disease, is characterized by a variable phenotype ranging from dental alterations to severe skeletal defects. Either de novo or inherited mutations in the RUNX2 gene have been identified in most CCD patients. Transcription factor RUNX2, the osteogenic master gene, plays a central role in the commitment of mesenchymal stem cells to osteoblast lineage. With the aim to analyse the effects of RUNX2 mutations in CCD patients, we investigated RUNX2 gene expression and the osteogenic potential of two CCD patients' cells. In addition, with the aim to better understand how RUNX2 mutations interfere with osteogenic differentiation, we performed string analyses to identify proteins interacting with RUNX2 and analysed p53 expression levels. Our findings demonstrated for the first time that, in addition to the alteration of downstream gene expression, RUNX2 mutations impair p53 expression affecting osteogenic maturation. In conclusion, the present work provides new insights into the role of RUNX2 mutations in CCD patients and suggests that an in-depth analysis of the RUNX2-associated gene network may contribute to better understand the complex molecular and phenotypic alterations in mutant subjects.
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Affiliation(s)
- Luca Dalle Carbonare
- Department of Medicine, University of Verona, 37100 Verona, Italy; (L.D.C.); (S.O.); (J.B.); (V.L.V.); (A.M.)
| | - Franco Antoniazzi
- Department of Surgery, Dentistry, Pediatrics and Gynecology, University of Verona, 37100 Verona, Italy; (F.A.); (A.G.)
| | - Alberto Gandini
- Department of Surgery, Dentistry, Pediatrics and Gynecology, University of Verona, 37100 Verona, Italy; (F.A.); (A.G.)
| | - Silvia Orsi
- Department of Medicine, University of Verona, 37100 Verona, Italy; (L.D.C.); (S.O.); (J.B.); (V.L.V.); (A.M.)
| | - Jessica Bertacco
- Department of Medicine, University of Verona, 37100 Verona, Italy; (L.D.C.); (S.O.); (J.B.); (V.L.V.); (A.M.)
- Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, 37100 Verona, Italy;
| | - Veronica Li Vigni
- Department of Medicine, University of Verona, 37100 Verona, Italy; (L.D.C.); (S.O.); (J.B.); (V.L.V.); (A.M.)
| | - Arianna Minoia
- Department of Medicine, University of Verona, 37100 Verona, Italy; (L.D.C.); (S.O.); (J.B.); (V.L.V.); (A.M.)
| | - Francesca Griggio
- Centro Piattaforme Tecnologiche, University of Verona, 37100 Verona, Italy;
| | - Massimiliano Perduca
- Biocrystallography Lab, Department of Biotechnology, University of Verona, 37134 Verona, Italy;
| | - Monica Mottes
- Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, 37100 Verona, Italy;
| | - Maria Teresa Valenti
- Department of Medicine, University of Verona, 37100 Verona, Italy; (L.D.C.); (S.O.); (J.B.); (V.L.V.); (A.M.)
- Correspondence: ; Tel.: +39-045-812-8450
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Sikora M, Śmieszek A, Marycz K. Bone marrow stromal cells (BMSCs CD45 - /CD44 + /CD73 + /CD90 + ) isolated from osteoporotic mice SAM/P6 as a novel model for osteoporosis investigation. J Cell Mol Med 2021; 25:6634-6651. [PMID: 34075722 PMCID: PMC8278098 DOI: 10.1111/jcmm.16667] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Revised: 04/15/2021] [Accepted: 05/11/2021] [Indexed: 02/06/2023] Open
Abstract
Available therapies aimed at treating age‐related osteoporosis are still insufficient. Therefore, designing reliable in vitro model for the analysis of molecular mechanisms underlying senile osteoporosis is highly required. We have isolated and characterized progenitor cells isolated from bone marrow (BMSCs) of osteoporotic mice strain SAM/P6 (BMSCSAM/P6). The cytophysiology of BMSCSAM/P6 was for the first time compared with BMSCs isolated from healthy BALB/c mice (BMSCBALB/c). Characterization of the cells included evaluation of their multipotency, morphology and determination of specific phenotype. Viability of BMSCs cultures was determined in reference to apoptosis profile, metabolic activity, oxidative stress, mitochondrial membrane potential and caspase activation. Additionally, expression of relevant biomarkers was determined with RT‐qPCR. Obtained results indicated that BMSCSAM/P6 and BMSCBALB/c show the typical phenotype of mesenchymal stromal cells (CD44+, CD73+, CD90+) and do not express CD45. Further, BMSCSAM/P6 were characterized by deteriorated multipotency, decreased metabolic activity and increased apoptosis occurrence, accompanied by elevated oxidative stress and mitochondria depolarisation. The transcriptome analyses showed that BMSCSAM/P6 are distinguished by lowered expression of molecules crucial for proper osteogenesis, including Coll‐1, Opg and Opn. However, the expression of Trap, DANCR1 and miR‐124‐3p was significantly up‐regulated. Obtained results show that BMSCSAM/P6 present features of progenitor cells with disturbed metabolism and could serve as appropriate model for in vitro investigation of age‐dependent osteoporosis.
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Affiliation(s)
- Mateusz Sikora
- The Department of Experimental Biology, The Faculty of Biology and Animal Science, University of Environmental and Life Sciences Wroclaw, Wroclaw, Poland
| | - Agnieszka Śmieszek
- The Department of Experimental Biology, The Faculty of Biology and Animal Science, University of Environmental and Life Sciences Wroclaw, Wroclaw, Poland
| | - Krzysztof Marycz
- The Department of Experimental Biology, The Faculty of Biology and Animal Science, University of Environmental and Life Sciences Wroclaw, Wroclaw, Poland.,International Institute of Translational Medicine, Malin, Poland
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9
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Carnovali M, Banfi G, Mariotti M. Age-dependent modulation of bone metabolism in zebrafish scales as new model of male osteoporosis in lower vertebrates. GeroScience 2020; 43:927-940. [PMID: 32997256 PMCID: PMC8110640 DOI: 10.1007/s11357-020-00267-0] [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: 05/14/2020] [Accepted: 09/10/2020] [Indexed: 12/13/2022] Open
Abstract
After middle age, in human bone, the resorption usually exceeds formation resulting in bone loss and increased risk of fractures in the aged population. Only few in vivo models in higher vertebrates are available for pathogenic and therapeutic studies about bone aging. Among these, male Danio rerio (zebrafish) can be successfully used as low vertebrate model to study degenerative alterations that affect the skeleton during aging, reducing the role of sex hormones. In this paper, we investigated the early bone aging mechanisms in male zebrafish (3, 6, 9 months old) scales evaluating the physiological changes and the effects of prednisolone, a pro-osteoporotic drug. The results evidentiated an age-dependent reduction of the mineralization rate in the fish scales, as highlighted by growing circle measurements. Indeed, the osteoblastic ALP activity at the matrix deposition site was found progressively downregulated. The higher TRAP activity was found in 63% of 9-month-old fish scales associated with resorption lacunae along the scale border. Gene expression analysis evidentiated that an increase of the tnfrsf1b (homolog of human rank) in aging scales may be responsible for resorption stimulation. Interestingly, prednisolone inhibited the physiological growth of the scale and induced in aged scales a more significant bone resorption compared with untreated fish (3.8% vs 1.02%). Bone markers analysis shown a significant reduction of ALP/TRAP ratio due to a prednisolone-dependent stimulation of tnfsf11 (homolog of human rankl) in scales of older fish. The results evidentiated for the first time the presence of a senile male osteoporosis in lower vertebrate. This new model could be helpful to identify the early mechanisms of bone aging and new therapeutic strategies to prevent age-related bone alterations in humans.
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Affiliation(s)
| | - Giuseppe Banfi
- IRCCS Istituto Ortopedico Galeazzi, Milan, Italy.,Vita-Salute San Raffaele University, Milan, Italy
| | - Massimo Mariotti
- IRCCS Istituto Ortopedico Galeazzi, Milan, Italy. .,Department of Biomedical, Surgical and Dental Sciences, University of Milan, Milan, Italy.
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10
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Fang N, Hu C, Sun W, Xu Y, Gu Y, Wu L, Peng Q, Reiter RJ, Liu L. Identification of a novel melatonin-binding nuclear receptor: Vitamin D receptor. J Pineal Res 2020; 68:e12618. [PMID: 31631405 DOI: 10.1111/jpi.12618] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/04/2019] [Revised: 10/09/2019] [Accepted: 10/14/2019] [Indexed: 02/06/2023]
Abstract
Previous studies confirmed that melatonin regulates Runx2 expression but the mechanism is unclear. There is a direct interaction between Runx2 and the vitamin D receptor (VDR). Herein, we observed a direct interaction between melatonin and the VDR but not Runx2 using isothermal titration calorimetry. Furthermore, this direct binding was detected only in the C-terminal ligand binding domain (LBD) of the VDR but not in the N-terminal DNA-binding domain (DBD) or the hinge region. Spectrophotometry indicated that melatonin and vitamin D3 (VD3) had similar uptake rates, but melatonin's uptake was significantly inhibited by VD3 until the concentration of melatonin was obviously higher than that of VD3 in a preosteoblastic cell line MC3T3-E1. GST pull-down and yeast two-hybrid assay showed that the interactive smallest fragments were on the 319-379 position of Runx2 and the N-terminus 110-amino acid DBD of the VDR. Electrophoretic mobility shift assay (EMSA) demonstrated that Runx2 facilitated the affinity between the VDR and its specific DNA substrate, which was further documented by a fluorescent EMSA assay where Cy3 labeled Runx2 co-localized with the VDR-DNA complex. Another fluorescent EMSA assay confirmed that the binding of the VDR to Runx2 was significantly enhanced with an increasing concentrations of the VDR, especially in the presence of melatonin; it was further documented using a co-immunoprecipitation assay that this direct interaction was markedly enhanced by melatonin treatment in the MC3T3-E1 cells. Thus, the VDR is a novel melatonin-binding nuclear receptor, and melatonin indirectly regulates Runx2 when it directly binds to the LBD and the DBD of the VDR, respectively.
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Affiliation(s)
- Nan Fang
- Department of Trauma Orthopaedics, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Chunyi Hu
- State Key Laboratory of Molecular Biology, Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Wenqi Sun
- State Key Laboratory of Molecular Biology, Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Ying Xu
- State Key Laboratory of Molecular Biology, Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Yeqi Gu
- Department of Trauma Orthopaedics, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Le Wu
- Department of Trauma Orthopaedics, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Qing Peng
- Department of Trauma Orthopaedics, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Russel J Reiter
- Department of Cellular & Structural Biology, UT Health Science Center, San Antonio, TX, USA
| | - Lifeng Liu
- Department of Trauma Orthopaedics, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
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Yang S, Guo Y, Zhang W, Zhang J, Zhang Y, Xu P. Effect of FGF-21 on implant bone defects through hepatocyte growth factor (HGF)-mediated PI3K/AKT signaling pathway. Biomed Pharmacother 2018; 109:1259-1267. [PMID: 30551376 DOI: 10.1016/j.biopha.2018.10.150] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2018] [Revised: 10/22/2018] [Accepted: 10/25/2018] [Indexed: 11/28/2022] Open
Abstract
Implant bone defects are the most common phenomenon in the processes of bone transplantation. Evidences have identified that fibroblast growth factor-21 (FGF-21) encourages osteogenesis for patients with implant bone defects. The purpose of this study was to investigate the role of FGF-21 and its potential mechanism in bone mesenchymal stem cells (BMSCs). RT-PCR, Western blotting, flow cytometry, immunofluorescence and immunohistochemistry assays were performed to analyze the role of FGF-21 and intracellular signaling pathways involved in BMSCs. It was shown that FGF-21 increased viability of BMSCs. Treatment with FGF-21 decreased the apoptosis of BMSCs by decreasing pro-apoptosis protein Caspase-3. Results indicated that FGF-21 (2 mg/kg) treatment up-regulated HGF, PI3K and AKT expression in BMSCs. In addition, the protective effects of FGF-21 on BMSCs were canceled by PI3K/AKT inhibitor in BMSCs. Results found that knockdown of HGF abolished FGF-21-decreased PI3K/AKT signal pathway. Furthermore, results demonstrated that FGF-21 presented beneficial effects for implant bone defects in rat model. In conclusion, these results indicate that FGF-21 can improve implant bone defects through HGF-mediated PI3K/AKT signaling pathway in BMSCs.
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Affiliation(s)
- Shimao Yang
- Department of Oral and Maxillofacial Surgery, Jinan Stomatology Hospital, Jinan City, Shandong Province, China
| | - Yanwei Guo
- Department of Oral and Maxillofacial Surgery, Jining Stomatology Hospital, Jining City, Shandong Province, China
| | - Wenmei Zhang
- Department of Oral and Maxillofacial Surgery, Jinan Stomatology Hospital, Jinan City, Shandong Province, China
| | - Jin Zhang
- Department of Oral and Maxillofacial Surgery, Jinan Stomatology Hospital, Jinan City, Shandong Province, China
| | - Yujie Zhang
- Department of Oral and Maxillofacial Surgery, Jinan Stomatology Hospital, Jinan City, Shandong Province, China
| | - Peng Xu
- Department of Dental Implant, Stomatological Hospital of Chongqing Medical University, Chongqing, 400015, China.
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Valenti MT, Mottes M, Cheri S, Deiana M, Micheletti V, Cosaro E, Davì MV, Francia G, Dalle Carbonare L. Runx2 overexpression compromises bone quality in acromegalic patients. Endocr Relat Cancer 2018; 25:269-277. [PMID: 29295822 DOI: 10.1530/erc-17-0523] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/29/2017] [Accepted: 01/02/2018] [Indexed: 12/12/2022]
Abstract
Acromegalic patients, characterized by excessive secretion of GH and IGF-1, show a high fracture risk but bone mineral density is a poor predictor for bone fractures in these patients. The effects of an excess of GH/IGF1 on skeleton as well as on osteogenic progenitors, i.e. mesenchymal stem cells, have not been investigated in these patients. We aimed to elucidate the skeletal conditions of acromegalic patients by means of bone microarchitecture analysis and evaluation of MSCs osteogenic commitment. In particular, we performed histomorphometric analyses, and we quantified the expression levels of the osteogenic transcription factor RUNX2 in circulating MSCs. Our results showed an abnormal microarchitecture and demonstrated that bone impairment in acromegalic patients is associated with the upregulation of RUNX2 expression. Furthermore, osteoblastic activity was significantly reduced in patients under pharmacological treatment, compared to untreated patients. In conclusion, this study demonstrates the key role of RUNX2 gene overexpression in causing bone impairment in acromegalic patients. It also suggests a therapeutic approach for the improvement of bone quality, focused on the osteoblastic lineage rather than the inhibition of osteoclastic activity.
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Affiliation(s)
- Maria Teresa Valenti
- Department of MedicineInternal Medicine, Section D, University of Verona, Verona, Italy
| | - Monica Mottes
- Department of NeurosciencesBiomedicine and Movement Sciences, University of Verona, Verona, Italy
| | - Samuele Cheri
- Department of MedicineInternal Medicine, Section D, University of Verona, Verona, Italy
- Department of NeurosciencesBiomedicine and Movement Sciences, University of Verona, Verona, Italy
| | - Michela Deiana
- Department of MedicineInternal Medicine, Section D, University of Verona, Verona, Italy
- Department of NeurosciencesBiomedicine and Movement Sciences, University of Verona, Verona, Italy
| | - Valentina Micheletti
- Department of MedicineInternal Medicine, Section D, University of Verona, Verona, Italy
| | - Elisa Cosaro
- Department of MedicineInternal Medicine, Section D, University of Verona, Verona, Italy
| | - Maria Vittoria Davì
- Department of MedicineInternal Medicine, Section D, University of Verona, Verona, Italy
| | - Giuseppe Francia
- Department of MedicineInternal Medicine, Section D, University of Verona, Verona, Italy
| | - Luca Dalle Carbonare
- Department of MedicineInternal Medicine, Section D, University of Verona, Verona, Italy
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Cleidocranial dysplasia: Clinical, endocrinologic and molecular findings in 15 patients from 11 families. Eur J Med Genet 2016; 60:163-168. [PMID: 28027977 DOI: 10.1016/j.ejmg.2016.12.007] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2016] [Revised: 12/10/2016] [Accepted: 12/18/2016] [Indexed: 11/22/2022]
Abstract
Cleidocranial dysplasia (CCD) is an autosomal dominant disorder characterized by skeletal anomalies such as delayed closure of the cranial sutures, underdeveloped or absent clavicles, multiple dental abnormalities, short stature and osteoporosis. RUNX2, encoding Runt DNA-binding domain protein important in osteoblast differentiation, is the only known gene related to the disease and identified as responsible in 70% of the cases. Our clinical evaluations revealed that short stature present at a rate of 28.6%, osteoporosis at a rate of 57.1% and osteopenia at 21.4%. In this study, RUNX2 sequencing revealed nine different variations in 11 families, eight being pathogenic of which one was novel gross insertion (c.1271_1272ins20) and one other being predicted benign in frame gross deletion (c.241_258del).
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Vimalraj S, Arumugam B, Miranda P, Selvamurugan N. Runx2: Structure, function, and phosphorylation in osteoblast differentiation. Int J Biol Macromol 2015; 78:202-8. [DOI: 10.1016/j.ijbiomac.2015.04.008] [Citation(s) in RCA: 236] [Impact Index Per Article: 26.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2015] [Revised: 04/02/2015] [Accepted: 04/03/2015] [Indexed: 02/07/2023]
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Osteoclast activators are elevated in intervertebral disks with Modic changes among patients operated for herniated nucleus pulposus. EUROPEAN SPINE JOURNAL : OFFICIAL PUBLICATION OF THE EUROPEAN SPINE SOCIETY, THE EUROPEAN SPINAL DEFORMITY SOCIETY, AND THE EUROPEAN SECTION OF THE CERVICAL SPINE RESEARCH SOCIETY 2015; 25:207-216. [PMID: 25813008 DOI: 10.1007/s00586-015-3897-y] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2014] [Revised: 03/19/2015] [Accepted: 03/19/2015] [Indexed: 01/23/2023]
Abstract
PURPOSE Modic changes (MC) are associated with low back pain (LBP). Inflammation is considered as a key factor that triggers symptoms in especially type I MC, but so far of the potential inflammatory candidates only TNFα has been linked to MC. The objective of the study was to analyze a set of inflammatory mediators in human surgical disk samples and quantify their association with MC in the adjacent vertebral bodies. METHODS The study sample consisted of 51 intervertebral disk tissue specimens; 20 'No MC' disks, 19 'Type I MC' disks, and 12 'Type II MC' disks. mRNA expression of 46 cytokines was quantified from isolated RNA. Tissue samples were stained using hematoxylin and eosin, toluidine blue, Herovici, CD68 and CD163. RESULTS No significant differences were found in the amount of macrophages or presence of chondrocyte conglomerates between the MC groups. Of the multiple genes tested, statistically significant associations were observed for M-CSF1 (p = 0.028), RANKL (p = 0.035), RUNX1 (p = 0.032), and RUNX2 (p = 0.047) that were increased in 'Type II MC,' while OSCAR (p = 0.042) was increased in 'Type I MC' group compared to 'No MC.' CONCLUSIONS Since these cytokines are related to differentiation and proliferation of osteoclasts, our data suggest that the stimulation of vertebral osteoclasts by factors secreted by disk tissue is involved in the pathophysiology of MC.
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Matsushita M, Kitoh H, Kaneko H, Mishima K, Itoh Y, Tokita Y, Ishiguro N. A novel in-frame deletion of the RUNX2 gene causes a classic form of cleidocranial dysplasia. J Bone Miner Metab 2014; 32:96-9. [PMID: 23558979 DOI: 10.1007/s00774-013-0456-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/16/2013] [Accepted: 02/28/2013] [Indexed: 11/30/2022]
Abstract
The runt-related transcription factor 2 (RUNX2) is a physiological regulatory gene implicated in the development of cleidocranial dysplasia (CCD). Molecular analysis of the RUNX2 gene in a 2-year-old boy with a diagnosis of CCD demonstrated a heterozygous in-frame 9-bp deletion (c.593_601delCCTTGACCA, corresponding to the amino-acid deletion p.ΔTLT198_200). Transcription activity of the ΔTLT198_200 mutant decreased in a similar degree to that of the L199F mutant, which was previously reported in the case with classic CCD. Atomic model assessment demonstrated that the ΔTLT198_200 mutation abolished the heterodimerization of the RUNX2 protein with the partner subunit, polyomavirus enhancer-binding protein 2β (PEBP2β). Destruction of RUNX2/PEBP2β heterodimerization activity appears to impair the function of the RUNX2 protein and cause the disease.
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Affiliation(s)
- Masaki Matsushita
- Departments of Orthopaedic Surgery, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan
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