1
|
Cao Y, Ni Q, Bao C, Cai C, Wang T, Ruan X, Li Y, Wang H, Wang R, Sun W. The Role of Pericyte Migration and Osteogenesis in Periodontitis. J Dent Res 2024; 103:723-733. [PMID: 38822570 DOI: 10.1177/00220345241244687] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2024] Open
Abstract
A ligature-induced periodontitis model was established in wild-type and CD146CreERT2; RosatdTomato mice to explore the function of pericytes in alveolar bone formation. We found that during periodontitis progression and periodontal wound healing, CD146+/NG2+ pericytes were enriched in the periodontal tissue areas, which could migrate to the alveolar bone surface and colocalize with ALP+/OCN+ osteoblasts. Chemokine C-X-C motif receptor 4 (CXCR4) inhibition using AMD3100 blocked CD146-Cre+ pericyte migration and osteogenesis, as well as further exacerbated periodontitis-associated bone loss. Next, primary pericytes were sorted out by magnetic-activated cell sorting and demonstrated that C-X-C motif chemokine ligand 12 (CXCL12) promotes pericyte migration and osteogenesis via CXCL12-CXCR4-Rac1 signaling. Finally, the local administration of an adeno-associated virus for Rac1 overexpression in NG2+ pericytes promotes osteoblast differentiation of pericytes and increases alveolar bone volume in periodontitis. Thus, our results provided the evidence that pericytes may migrate and osteogenesis via the CXCL12-CXCR4-Rac1 axis during the pathological process of periodontitis.
Collapse
Affiliation(s)
- Y Cao
- Department of Basic Science of Stomatology, The Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, China
- Jiangsu Province Key Laboratory of Oral Diseases, Nanjing, China
- Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing, China
| | - Q Ni
- Department of Basic Science of Stomatology, The Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, China
- Jiangsu Province Key Laboratory of Oral Diseases, Nanjing, China
- Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing, China
| | - C Bao
- Department of Basic Science of Stomatology, The Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, China
- Jiangsu Province Key Laboratory of Oral Diseases, Nanjing, China
- Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing, China
| | - C Cai
- Department of Basic Science of Stomatology, The Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, China
- Jiangsu Province Key Laboratory of Oral Diseases, Nanjing, China
- Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing, China
| | - T Wang
- Department of Basic Science of Stomatology, The Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, China
- Jiangsu Province Key Laboratory of Oral Diseases, Nanjing, China
- Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing, China
| | - X Ruan
- Department of Basic Science of Stomatology, The Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, China
- Jiangsu Province Key Laboratory of Oral Diseases, Nanjing, China
- Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing, China
| | - Y Li
- Department of Basic Science of Stomatology, The Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, China
- Jiangsu Province Key Laboratory of Oral Diseases, Nanjing, China
- Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing, China
| | - H Wang
- Department of Basic Science of Stomatology, The Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, China
- Jiangsu Province Key Laboratory of Oral Diseases, Nanjing, China
- Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing, China
| | - R Wang
- Department of Basic Science of Stomatology, The Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, China
- Jiangsu Province Key Laboratory of Oral Diseases, Nanjing, China
- Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing, China
| | - W Sun
- Department of Basic Science of Stomatology, The Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, China
- Jiangsu Province Key Laboratory of Oral Diseases, Nanjing, China
- Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing, China
| |
Collapse
|
2
|
Avery D, Morandini L, Sheakley L, Grabiec M, Olivares-Navarrete R. CD4 + and CD8 + T cells reduce inflammation and promote bone healing in response to titanium implants. Acta Biomater 2024; 179:385-397. [PMID: 38554889 PMCID: PMC11045310 DOI: 10.1016/j.actbio.2024.03.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Revised: 03/11/2024] [Accepted: 03/24/2024] [Indexed: 04/02/2024]
Abstract
T cells are adaptive immune cells essential in pathogenic response, cancer, and autoimmune disorders. During the integration of biomaterials with host tissue, T cells modify the local inflammatory environment by releasing cytokines that promote inflammatory resolution following implantation. T cells are vital for the modulation of innate immune cells, recruitment and proliferation of mesenchymal stem cells (MSCs), and formation of functional tissue around the biomaterial implant. We have demonstrated that deficiency of αβ T cells promotes macrophage polarization towards a pro-inflammatory phenotype and attenuates MSC recruitment and proliferation in vitro and in vivo. The goal of this study was to understand how CD4+ and CD8+ T cells, subsets of the αβ T cell family, impact the inflammatory response to titanium (Ti) biomaterials. Deficiency of either CD4+ or CD8+ T cells increased the proportion of pro-inflammatory macrophages, lowered anti-inflammatory macrophages, and diminished MSC recruitment in vitro and in vivo. In addition, new bone formation at the implantation site was significantly reduced in T cell-deficient mice compared to T cell-competent mice. Deficiency of CD4+ T cells exacerbated these effects compared to CD8+ T cell deficiency. Our results show the importance of CD4+ and CD8+ T cells in modulating the inflammatory response and promoting new bone formation in response to modified Ti implants. STATEMENT OF SIGNIFICANCE: CD4+ and CD8+ T cells are essential in modulating the peri-implant microenvironment during the inflammatory response to biomaterial implantation. This study shows that deficiency of either CD4+ or CD8+ T cell subsets altered macrophage polarization and reduced MSC recruitment and proliferation at the implantation site.
Collapse
Affiliation(s)
- Derek Avery
- Department of Biomedical Engineering, College of Engineering, Virginia Commonwealth University, 70 S. Madison Street, Room 3328, Richmond, VA 23220, United States
| | - Lais Morandini
- Department of Biomedical Engineering, College of Engineering, Virginia Commonwealth University, 70 S. Madison Street, Room 3328, Richmond, VA 23220, United States
| | - Luke Sheakley
- Department of Biomedical Engineering, College of Engineering, Virginia Commonwealth University, 70 S. Madison Street, Room 3328, Richmond, VA 23220, United States
| | - Melissa Grabiec
- Department of Biomedical Engineering, College of Engineering, Virginia Commonwealth University, 70 S. Madison Street, Room 3328, Richmond, VA 23220, United States
| | - Rene Olivares-Navarrete
- Department of Biomedical Engineering, College of Engineering, Virginia Commonwealth University, 70 S. Madison Street, Room 3328, Richmond, VA 23220, United States.
| |
Collapse
|
3
|
Lu Y, Luo Y, Zhang Q, Chen W, Zhang N, Wang L, Zhang Y. Decoding the immune landscape following hip fracture in elderly patients: unveiling temporal dynamics through single-cell RNA sequencing. Immun Ageing 2023; 20:54. [PMID: 37848979 PMCID: PMC10580557 DOI: 10.1186/s12979-023-00380-6] [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: 08/03/2023] [Accepted: 10/10/2023] [Indexed: 10/19/2023]
Abstract
BACKGROUND Hip fractures in the elderly have significant consequences, stemming from the initial trauma and subsequent surgeries. Hidden blood loss and stress due to concealed injury sites could impact the whole osteoimmune microenvironment. This study employs scRNA-seq technique to map immune profiles in elderly hip fracture patients from post-trauma to the recovery period, investigating the dynamic changes of immune inflammation regulation subgroups. METHODS We collected peripheral blood samples from four elderly hip fracture patients (two males and two females, all > 75 years of age) at three different time points (24 h post-trauma, 24 h post-operation, and day 7 post-operation) and applied scRNA-seq technique to analyze the cellular heterogeneity and identify differentially expressed genes in peripheral blood individual immune cells from elderly hip fracture patients. RESULTS In this study, we analyzed the composition and gene expression profiles of peripheral blood mononuclear cells (PBMCs) from elderly hip fracture patients by scRNA-seq and further identified new CD14 monocyte subpopulations based on marker genes and transcriptional profiles. Distinct gene expression changes were observed in various cell subpopulations at different time points. C-Mono2 monocyte mitochondria-related genes were up-regulated and interferon-related and chemokine-related genes were down-regulated within 24 h post-operation. Further analysis of gene expression profiles at day 7 post-operation showed that C-Mono2 monocytes showed downregulation of inflammation-related genes and osteoblast differentiation-related genes. However, the expression of these genes in cytotoxic T cells, Treg cells, and B cell subsets exhibited a contrasting trend. GZMK+CD8+ cytotoxic T cells showed downregulation of chemokine-related genes, and Treg cells showed upregulation of genes related to the JAK/STAT signaling pathway. Furthermore, we examined interactions among diverse immune cell subsets, pinpointing specific ligand-receptor pairs. These findings imply cross-talk and communication between various cell types in the post-traumatic immune response. CONCLUSIONS Our study elucidates the notable alterations in immune cell subpopulations during different stages of hip fracture in elderly patients, both in terms of proportions and differential gene expressions. These changes provide significant clinical implications for tissue repair, infection prevention, and fracture healing in clinic.
Collapse
Affiliation(s)
- Yining Lu
- Department of Orthopaedic Surgery, The Third Hospital of Hebei Medical University, Shijiazhuang, Hebei, People's Republic of China
- Department of Orthopedic Research Center, The Third Hospital of Hebei Medical University, Shijiazhuang, Hebei, P.R. China
| | - Yang Luo
- Department of Orthopaedic Surgery, The Third Hospital of Hebei Medical University, Shijiazhuang, Hebei, People's Republic of China
| | - Qi Zhang
- Department of Orthopaedic Surgery, The Third Hospital of Hebei Medical University, Shijiazhuang, Hebei, People's Republic of China
- Department of Orthopedic Research Center, The Third Hospital of Hebei Medical University, Shijiazhuang, Hebei, P.R. China
| | - Wei Chen
- Department of Orthopaedic Surgery, The Third Hospital of Hebei Medical University, Shijiazhuang, Hebei, People's Republic of China
- Department of Orthopedic Research Center, The Third Hospital of Hebei Medical University, Shijiazhuang, Hebei, P.R. China
| | - Ning Zhang
- Department of Orthopedic Research Center, The Third Hospital of Hebei Medical University, Shijiazhuang, Hebei, P.R. China
| | - Ling Wang
- Department of Orthopedic Research Center, The Third Hospital of Hebei Medical University, Shijiazhuang, Hebei, P.R. China.
- Department of Orthopedic Oncology, The Third Hospital of Hebei Medical University, Shijiazhuang, Hebei, P.R. China.
| | - Yingze Zhang
- Department of Orthopaedic Surgery, The Third Hospital of Hebei Medical University, Shijiazhuang, Hebei, People's Republic of China.
- Department of Orthopedic Research Center, The Third Hospital of Hebei Medical University, Shijiazhuang, Hebei, P.R. China.
- Chinese Academy of Engineering, Beijing, 100088, People's Republic of China.
| |
Collapse
|
4
|
González Díaz EC, Tai M, Monette CEF, Wu JY, Yang F. Spatially patterned 3D model mimics key features of cancer metastasis to bone. Biomaterials 2023; 299:122163. [PMID: 37236137 PMCID: PMC10621670 DOI: 10.1016/j.biomaterials.2023.122163] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Revised: 05/01/2023] [Accepted: 05/14/2023] [Indexed: 05/28/2023]
Abstract
Bone is the most common target of metastasis in breast cancer and prostate cancer, leading to significant mortality due to lack of effective treatments. The discovery of novel therapies has been hampered by a lack of physiologically relevant in vitro models that can mimic key clinical features of bone metastases. To fill this critical gap, here we report spatially patterned, tissue engineered 3D models of breast cancer and prostate cancer bone metastasis which mimic bone-specific invasion, cancer aggressiveness, cancer-induced dysregulation of bone remodeling, and in vivo drug response. We demonstrate the potential of integrating such 3D models with single-cell RNA sequencing to identify key signaling drivers of cancer metastasis to bone. Together, these results validate that spatially patterned 3D bone metastasis models mimic key clinical features of bone metastasis and can serve as a novel research tool to elucidate bone metastasis biology and expedite drug discovery.
Collapse
Affiliation(s)
- Eva C González Díaz
- Department of Bioengineering, Stanford University, Stanford, CA, 94305, USA.
| | - Michelle Tai
- Department of Bioengineering, Stanford University, Stanford, CA, 94305, USA
| | - Callan E F Monette
- Department of Bioengineering, Stanford University, Stanford, CA, 94305, USA
| | - Joy Y Wu
- Division of Endocrinology, Stanford University School of Medicine, Stanford, CA, 94305, USA
| | - Fan Yang
- Department of Bioengineering, Stanford University, Stanford, CA, 94305, USA; Department of Orthopaedic Surgery, Stanford University, Stanford, CA, 94305, USA.
| |
Collapse
|
5
|
Zhou Z, Huang Z, Khan HM, Liu Y, Zhao Z, Kong Q. Identification of 12 hub genes associated to the pathogenesis of osteoporosis based on microarray and single-cell RNA sequencing data. Funct Integr Genomics 2023; 23:186. [PMID: 37243790 DOI: 10.1007/s10142-023-01116-x] [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: 03/10/2023] [Revised: 05/12/2023] [Accepted: 05/18/2023] [Indexed: 05/29/2023]
Abstract
Osteoporosis is a common disease, especially among the elderly. This study aimed to comprehensively examine the roles of immune microenvironment in osteoporosis pathogenesis. Expression profiles of GSE35959, GSE7158, and GSE13850 datasets were used to analyze differential expression and identify hub genes related to immune features. Based on the single-cell RNA sequencing (scRNA-seq) data of an osteoporosis patient, different cell types were classified and the relation between immune environment and osteoporosis was explored. Twelve hub genes significantly associated with immune features were selected and 11 subgroups were defined using scRNA-seq data. The expression of two hub genes (CDKN1A and TEFM) was greatly altered during the transformation from mesenchymal stem cells (MSCs) to osteoblasts. Chemokines and chemokine receptors were differentially enriched in different cell types. CXCL12 was high-expressed in MSCs. This study emphasized that immune microenvironment played a critical role in the pathogenesis of osteoporosis. Chemokines and chemokine receptors can modify cell development and affect the interactions among different cell types, leading to unbalanced bone remodeling.
Collapse
Affiliation(s)
- Zhigang Zhou
- Department of Orthopedics Surgery, West China Hospital, Sichuan University, Orthopedic Research Institute, West China Hospital, Sichuan University, No. 37 Guo Xue Lane, Chengdu, 610041, Sichuan, China
- Department of Spine Surgery, Jiujiang No. 1 People's Hospital, Jiujiang, China
| | - Zhangheng Huang
- Department of Orthopedics Surgery, West China Hospital, Sichuan University, Orthopedic Research Institute, West China Hospital, Sichuan University, No. 37 Guo Xue Lane, Chengdu, 610041, Sichuan, China
| | - Haider Mohammed Khan
- Department of Orthopedics Surgery, West China Hospital, Sichuan University, Orthopedic Research Institute, West China Hospital, Sichuan University, No. 37 Guo Xue Lane, Chengdu, 610041, Sichuan, China
| | - Yuheng Liu
- Department of Orthopedics Surgery, West China Hospital, Sichuan University, Orthopedic Research Institute, West China Hospital, Sichuan University, No. 37 Guo Xue Lane, Chengdu, 610041, Sichuan, China
| | - Zhen Zhao
- Department of Orthopedics Surgery, West China Hospital, Sichuan University, Orthopedic Research Institute, West China Hospital, Sichuan University, No. 37 Guo Xue Lane, Chengdu, 610041, Sichuan, China
| | - Qingquan Kong
- Department of Orthopedics Surgery, West China Hospital, Sichuan University, Orthopedic Research Institute, West China Hospital, Sichuan University, No. 37 Guo Xue Lane, Chengdu, 610041, Sichuan, China.
| |
Collapse
|
6
|
Anginot A, Nguyen J, Abou Nader Z, Rondeau V, Bonaud A, Kalogeraki M, Boutin A, Lemos JP, Bisio V, Koenen J, Hanna Doumit Sakr L, Picart A, Coudert A, Provot S, Dulphy N, Aurrand-Lions M, Mancini SJC, Lazennec G, McDermott DH, Guidez F, Blin-Wakkach C, Murphy PM, Cohen-Solal M, Espéli M, Rouleau M, Balabanian K. WHIM Syndrome-linked CXCR4 mutations drive osteoporosis. Nat Commun 2023; 14:2058. [PMID: 37045841 PMCID: PMC10097661 DOI: 10.1038/s41467-023-37791-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2021] [Accepted: 03/07/2023] [Indexed: 04/14/2023] Open
Abstract
WHIM Syndrome is a rare immunodeficiency caused by gain-of-function CXCR4 mutations. Here we report a decrease in bone mineral density in 25% of WHIM patients and bone defects leading to osteoporosis in a WHIM mouse model. Imbalanced bone tissue is observed in mutant mice combining reduced osteoprogenitor cells and increased osteoclast numbers. Mechanistically, impaired CXCR4 desensitization disrupts cell cycle progression and osteogenic commitment of skeletal stromal/stem cells, while increasing their pro-osteoclastogenic capacities. Impaired osteogenic differentiation is evidenced in primary bone marrow stromal cells from WHIM patients. In mice, chronic treatment with the CXCR4 antagonist AMD3100 normalizes in vitro osteogenic fate of mutant skeletal stromal/stem cells and reverses in vivo the loss of skeletal cells, demonstrating that proper CXCR4 desensitization is required for the osteogenic specification of skeletal stromal/stem cells. Our study provides mechanistic insights into how CXCR4 signaling regulates the osteogenic fate of skeletal cells and the balance between bone formation and resorption.
Collapse
Affiliation(s)
- Adrienne Anginot
- Université Paris Cité, Institut de Recherche Saint-Louis, INSERM U1160, Paris, France
- CNRS, GDR3697 "Microenvironment of tumor niches", Micronit, France
- OPALE Carnot Institute, The Organization for Partnerships in Leukemia, Hôpital Saint-Louis, Paris, France
| | - Julie Nguyen
- CNRS, GDR3697 "Microenvironment of tumor niches", Micronit, France
- Inflammation, Microbiome and Immunosurveillance, INSERM, Université Paris-Saclay, Orsay, France
| | - Zeina Abou Nader
- Université Paris Cité, Institut de Recherche Saint-Louis, INSERM U1160, Paris, France
- CNRS, GDR3697 "Microenvironment of tumor niches", Micronit, France
- OPALE Carnot Institute, The Organization for Partnerships in Leukemia, Hôpital Saint-Louis, Paris, France
| | - Vincent Rondeau
- Université Paris Cité, Institut de Recherche Saint-Louis, INSERM U1160, Paris, France
- CNRS, GDR3697 "Microenvironment of tumor niches", Micronit, France
- OPALE Carnot Institute, The Organization for Partnerships in Leukemia, Hôpital Saint-Louis, Paris, France
| | - Amélie Bonaud
- Université Paris Cité, Institut de Recherche Saint-Louis, INSERM U1160, Paris, France
- CNRS, GDR3697 "Microenvironment of tumor niches", Micronit, France
- OPALE Carnot Institute, The Organization for Partnerships in Leukemia, Hôpital Saint-Louis, Paris, France
| | - Maria Kalogeraki
- Université Paris Cité, Institut de Recherche Saint-Louis, INSERM U1160, Paris, France
- CNRS, GDR3697 "Microenvironment of tumor niches", Micronit, France
- OPALE Carnot Institute, The Organization for Partnerships in Leukemia, Hôpital Saint-Louis, Paris, France
| | | | - Julia P Lemos
- Université Paris Cité, Institut de Recherche Saint-Louis, INSERM U1160, Paris, France
- CNRS, GDR3697 "Microenvironment of tumor niches", Micronit, France
- OPALE Carnot Institute, The Organization for Partnerships in Leukemia, Hôpital Saint-Louis, Paris, France
| | - Valeria Bisio
- Université Paris Cité, Institut de Recherche Saint-Louis, INSERM U1160, Paris, France
- CNRS, GDR3697 "Microenvironment of tumor niches", Micronit, France
- OPALE Carnot Institute, The Organization for Partnerships in Leukemia, Hôpital Saint-Louis, Paris, France
| | - Joyce Koenen
- CNRS, GDR3697 "Microenvironment of tumor niches", Micronit, France
- Inflammation, Microbiome and Immunosurveillance, INSERM, Université Paris-Saclay, Orsay, France
| | - Lea Hanna Doumit Sakr
- Université Paris Cité, BIOSCAR Inserm U1132, Department of Rheumatology and Reference Center for Rare Bone Diseases, AP-HP Hospital Lariboisière, Paris, France
| | - Amandine Picart
- Université Paris Cité, BIOSCAR Inserm U1132, Department of Rheumatology and Reference Center for Rare Bone Diseases, AP-HP Hospital Lariboisière, Paris, France
| | - Amélie Coudert
- Université Paris Cité, BIOSCAR Inserm U1132, Department of Rheumatology and Reference Center for Rare Bone Diseases, AP-HP Hospital Lariboisière, Paris, France
| | - Sylvain Provot
- Université Paris Cité, BIOSCAR Inserm U1132, Department of Rheumatology and Reference Center for Rare Bone Diseases, AP-HP Hospital Lariboisière, Paris, France
| | - Nicolas Dulphy
- Université Paris Cité, Institut de Recherche Saint-Louis, INSERM U1160, Paris, France
- CNRS, GDR3697 "Microenvironment of tumor niches", Micronit, France
- OPALE Carnot Institute, The Organization for Partnerships in Leukemia, Hôpital Saint-Louis, Paris, France
| | - Michel Aurrand-Lions
- CNRS, GDR3697 "Microenvironment of tumor niches", Micronit, France
- OPALE Carnot Institute, The Organization for Partnerships in Leukemia, Hôpital Saint-Louis, Paris, France
- Aix Marseille Univ, CNRS, INSERM, Institut Paoli-Calmettes, CRCM, Marseille, France
| | - Stéphane J C Mancini
- CNRS, GDR3697 "Microenvironment of tumor niches", Micronit, France
- Aix Marseille Univ, CNRS, INSERM, Institut Paoli-Calmettes, CRCM, Marseille, France
| | - Gwendal Lazennec
- CNRS, GDR3697 "Microenvironment of tumor niches", Micronit, France
- CNRS, SYS2DIAG-ALCEDIAG, Cap Delta, Montpellier, France
| | - David H McDermott
- Molecular Signaling Section, Laboratory of Molecular Immunology, National Institute of Allergy and Infectious Diseases, NIH, Bethesda, MD, USA
| | - Fabien Guidez
- OPALE Carnot Institute, The Organization for Partnerships in Leukemia, Hôpital Saint-Louis, Paris, France
- Université Paris Cité, Institut de Recherche Saint-Louis, INSERM U1131, Paris, France
| | | | - Philip M Murphy
- Molecular Signaling Section, Laboratory of Molecular Immunology, National Institute of Allergy and Infectious Diseases, NIH, Bethesda, MD, USA
| | - Martine Cohen-Solal
- Université Paris Cité, BIOSCAR Inserm U1132, Department of Rheumatology and Reference Center for Rare Bone Diseases, AP-HP Hospital Lariboisière, Paris, France
| | - Marion Espéli
- Université Paris Cité, Institut de Recherche Saint-Louis, INSERM U1160, Paris, France
- CNRS, GDR3697 "Microenvironment of tumor niches", Micronit, France
- OPALE Carnot Institute, The Organization for Partnerships in Leukemia, Hôpital Saint-Louis, Paris, France
| | | | - Karl Balabanian
- Université Paris Cité, Institut de Recherche Saint-Louis, INSERM U1160, Paris, France.
- CNRS, GDR3697 "Microenvironment of tumor niches", Micronit, France.
- OPALE Carnot Institute, The Organization for Partnerships in Leukemia, Hôpital Saint-Louis, Paris, France.
| |
Collapse
|
7
|
Alonso N, Albagha OME, Azfer A, Larraz-Prieto B, Berg K, Riches PL, Ostanek B, Kocjan T, Marc J, Langdahl BL, Ralston SH. Genome-wide association study identifies genetic variants which predict the response of bone mineral density to teriparatide therapy. Ann Rheum Dis 2023:ard-2022-223618. [PMID: 36941031 DOI: 10.1136/ard-2022-223618] [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: 11/11/2022] [Accepted: 02/15/2023] [Indexed: 03/23/2023]
Abstract
OBJECTIVES Teriparatide (TPTD) is an effective treatment for osteoporosis but the individual response to therapy is variable for reasons that are unclear. This study aimed to determine whether the response to TPTD might be influenced by genetic factors. METHODS We searched for predictors of the response of bone mineral density (BMD) to TPTD using a two-stage genome-wide association study in 437 patients with osteoporosis from three referral centres. Demographic and clinical data including the response of BMD to treatment at the lumbar spine and hip were extracted from the medical records of each participant. RESULTS Allelic variation at rs6430612 on chromosome 2, close to the CXCR4 gene was associated with the response of spine BMD to TPTD at a genome wide significant level (p=9.2×10-9 beta=-0.35 (-0.47 to -0.23)). The increase in BMD was almost twice as great in AA homozygotes at rs6430612 as compared with GG homozygotes with intermediate values in heterozygotes. The same variant was also associated with response of femoral neck and total hip BMD (p=0.007). An additional locus on chromosome 19 tagged by rs73056959 was associated with the response of femoral neck BMD to TPTD (p=3.5×10-9, beta=-1.61 (-2.14 to -1.07)). CONCLUSIONS Genetic factors influence the response to TPTD at the lumbar spine and hip with a magnitude of effect that is clinically relevant. Further studies are required to identify the causal genetic variants and underlying mechanisms as well as to explore how genetic testing for these variants might be implemented in clinical practice.
Collapse
Affiliation(s)
- Nerea Alonso
- Centre for Genomic and Experimental Medicine, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK
- Clinical Institute of Medical and Chemical Laboratory Diagnostics, Medical University of Graz, Graz, Austria
| | - Omar M E Albagha
- Centre for Genomic and Experimental Medicine, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK
- College of Health and Life Sciences, Hamad Bin Khalifa University, Doha, Qatar
| | - Asim Azfer
- Centre for Genomic and Experimental Medicine, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK
| | - Beatriz Larraz-Prieto
- Centre for Genomic and Experimental Medicine, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK
| | - Kathryn Berg
- Centre for Genomic and Experimental Medicine, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK
| | - Philip L Riches
- Centre for Genomic and Experimental Medicine, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK
- Rheumatic Diseases Unit, Western General Hospital, Edinburgh, UK
| | - Barbara Ostanek
- Department of Clinical Biochemistry, Faculty of Pharmacy, University of Ljubljana, Ljubljana, Slovenia
| | - Tomaz Kocjan
- Department of Endocrinology, Diabetes and Metabolic Diseases, University Medical Centre Ljubljana, Ljubljana, Slovenia
- Department of Internal Medicine, Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
| | - Janja Marc
- Department of Clinical Biochemistry, Faculty of Pharmacy, University of Ljubljana, Ljubljana, Slovenia
| | - Bente L Langdahl
- Department of Endocrinology and Internal Medicine, Aarhus University Hospital, Aarhus, Denmark
| | - Stuart H Ralston
- Centre for Genomic and Experimental Medicine, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK
- Rheumatic Diseases Unit, Western General Hospital, Edinburgh, UK
| |
Collapse
|
8
|
Johnson CS, Cook LM. Osteoid cell-derived chemokines drive bone-metastatic prostate cancer. Front Oncol 2023; 13:1100585. [PMID: 37025604 PMCID: PMC10070788 DOI: 10.3389/fonc.2023.1100585] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Accepted: 03/07/2023] [Indexed: 04/08/2023] Open
Abstract
One of the greatest challenges in improving prostate cancer (PCa) survival is in designing new therapies to effectively target bone metastases. PCa regulation of the bone environment has been well characterized; however, bone-targeted therapies have little impact on patient survival, demonstrating a need for understanding the complexities of the tumor-bone environment. Many factors contribute to creating a favorable microenvironment for prostate tumors in bone, including cell signaling proteins produced by osteoid cells. Specifically, there has been extensive evidence from both past and recent studies that emphasize the importance of chemokine signaling in promoting PCa progression in the bone environment. Chemokine-focused strategies present promising therapeutic options for treating bone metastasis. These signaling pathways are complex, with many being produced by (and exerting effects on) a plethora of different cell types, including stromal and tumor cells of the prostate tumor-bone microenvironment. This review highlights an underappreciated molecular family that should be interrogated for treatment of bone metastatic prostate cancer (BM-PCa).
Collapse
Affiliation(s)
- Catherine S. Johnson
- Department of Pathology and Microbiology, University of Nebraska Medical Center, Omaha, NE, United States
- Eppley Institute for Research in Cancer and Allied Diseases, Omaha, NE, United States
| | - Leah M. Cook
- Department of Pathology and Microbiology, University of Nebraska Medical Center, Omaha, NE, United States
- Fred & Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE, United States
- *Correspondence: Leah M. Cook,
| |
Collapse
|
9
|
Esposito A, Klüppel M, Wilson BM, Meka SRK, Spagnoli A. CXCR4 mediates the effects of IGF-1R signaling in rodent bone homeostasis and fracture repair. Bone 2023; 166:116600. [PMID: 36368465 PMCID: PMC10057209 DOI: 10.1016/j.bone.2022.116600] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Revised: 10/26/2022] [Accepted: 10/28/2022] [Indexed: 11/10/2022]
Abstract
Non-union fractures have considerable clinical and economic burdens and yet the underlying pathogenesis remains largely undetermined. The fracture healing process involves cellular differentiation, callus formation and remodeling, and implies the recruitment and differentiation of mesenchymal stem cells that are not fully characterized. C-X-C chemokine receptor 4 (CXCR4) and Insulin-like growth factor 1 receptor (IGF-1R) are expressed in the fracture callus, but their interactions still remain elusive. We hypothesized that the regulation of CXCR4 by IGF-1R signaling is essential to maintain the bone homeostasis and to promote fracture repair. By using a combination of in vivo and in vitro approaches, we found that conditional ablation of IGF-1R in osteochondroprogenitors led to defects in bone formation and mineralization that associated with altered expression of CXCR4 by a discrete population of endosteal cells. These defects were corrected by AMD3100 (a CXCR4 antagonist). Furthermore, we found that the inducible ablation of IGF-1R in osteochondroprogenitors led to fracture healing failure, that associated with an altered expression of CXCR4. In vivo AMD3100 treatment improved fracture healing and normalized CXCR4 expression. Moreover, we determined that these effects were mediated through the IGF-1R/Insulin receptor substrate 1 (IRS-1) signaling pathway. Taken together, our studies identified a novel population of endosteal cells that is functionally regulated through the modulation of CXCR4 by IGF-1R signaling, and such control is essential in bone homeostasis and fracture healing. Knowledge gained from these studies has the potential to accelerate the development of novel therapeutic interventions by targeting CXCR4 signaling to treat non-unions.
Collapse
Affiliation(s)
- Alessandra Esposito
- Department of Orthopaedic Surgery, Rush University Medical Center, Chicago, IL, USA
| | - Michael Klüppel
- Department of Orthopaedic Surgery, Rush University Medical Center, Chicago, IL, USA
| | - Brittany M Wilson
- Department of Orthopaedic Surgery, Rush University Medical Center, Chicago, IL, USA
| | - Sai R K Meka
- Department of Orthopaedic Surgery, Rush University Medical Center, Chicago, IL, USA
| | - Anna Spagnoli
- Department of Orthopaedic Surgery, Rush University Medical Center, Chicago, IL, USA; Department of Pediatrics, Rush University Medical Center, Chicago, IL, USA.
| |
Collapse
|
10
|
Granata V, Possetti V, Parente R, Bottazzi B, Inforzato A, Sobacchi C. The osteoblast secretome in Staphylococcus aureus osteomyelitis. Front Immunol 2022; 13:1048505. [PMID: 36483565 PMCID: PMC9723341 DOI: 10.3389/fimmu.2022.1048505] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Accepted: 11/03/2022] [Indexed: 11/23/2022] Open
Abstract
Osteomyelitis (OM) is an infectious disease of the bone predominantly caused by the opportunistic bacterium Staphylococcus aureus (S. aureus). Typically established upon hematogenous spread of the pathogen to the musculoskeletal system or contamination of the bone after fracture or surgery, osteomyelitis has a complex pathogenesis with a critical involvement of both osteal and immune components. Colonization of the bone by S. aureus is traditionally proposed to induce functional inhibition and/or apoptosis of osteoblasts, alteration of the RANKL/OPG ratio in the bone microenvironment and activation of osteoclasts; all together, these events locally subvert tissue homeostasis causing pathological bone loss. However, this paradigm has been challenged in recent years, in fact osteoblasts are emerging as active players in the induction and orientation of the immune reaction that mounts in the bone during an infection. The interaction with immune cells has been mostly ascribed to osteoblast-derived soluble mediators that add on and synergize with those contributed by professional immune cells. In this respect, several preclinical and clinical observations indicate that osteomyelitis is accompanied by alterations in the local and (sometimes) systemic levels of both pro-inflammatory (e.g., IL-6, IL-1α, TNF-α, IL-1β) and anti-inflammatory (e.g., TGF-β1) cytokines. Here we revisit the role of osteoblasts in bacterial OM, with a focus on their secretome and its crosstalk with cellular and molecular components of the bone microenvironment and immune system.
Collapse
Affiliation(s)
- Valentina Granata
- IRCCS Humanitas Research Hospital, Rozzano, Italy,Milan Unit, National Research Council - Institute for Genetic and Biomedical Research (CNR-IRGB), Milan, Italy
| | - Valentina Possetti
- IRCCS Humanitas Research Hospital, Rozzano, Italy,Department of Biomedical Sciences, Humanitas University, Pieve Emanuele, Italy
| | | | | | - Antonio Inforzato
- IRCCS Humanitas Research Hospital, Rozzano, Italy,Department of Biomedical Sciences, Humanitas University, Pieve Emanuele, Italy
| | - Cristina Sobacchi
- IRCCS Humanitas Research Hospital, Rozzano, Italy,Milan Unit, National Research Council - Institute for Genetic and Biomedical Research (CNR-IRGB), Milan, Italy,*Correspondence: Cristina Sobacchi,
| |
Collapse
|
11
|
Sadu L, Krishnan RH, Akshaya RL, Das UR, Satishkumar S, Selvamurugan N. Exosomes in bone remodeling and breast cancer bone metastasis. PROGRESS IN BIOPHYSICS AND MOLECULAR BIOLOGY 2022; 175:120-130. [PMID: 36155749 DOI: 10.1016/j.pbiomolbio.2022.09.008] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Revised: 09/10/2022] [Accepted: 09/19/2022] [Indexed: 06/16/2023]
Abstract
Exosomes are endosome-derived microvesicles that carry cell-specific biological cargo, such as proteins, lipids, and noncoding RNAs (ncRNAs). They play a key role in bone remodeling by enabling the maintenance of a balance between osteoblast-mediated bone formation and osteoclast-mediated bone resorption. Recent evidence indicates that exosomes disrupt bone remodeling that occurs during breast cancer (BC) progression. The bone is a preferred site for BC metastasis owing to its abundant osseous reserves. In this review, we aimed to highlight the roles of exosomes derived from bone cells and breast tumor in bone remodeling and BC bone metastasis (BCBM). We also briefly outline the mechanisms of action of ncRNAs and proteins carried by exosomes secreted by bone and BCBM. Furthermore, this review highlights the potential of utilizing exosomes as biomarkers or delivery vehicles for the diagnosis and treatment of BCBM.
Collapse
Affiliation(s)
- Lakshana Sadu
- Department of Biotechnology, School of Bioengineering, College of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur, 603 103, Tamil Nadu, India
| | - R Hari Krishnan
- Department of Biotechnology, School of Bioengineering, College of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur, 603 103, Tamil Nadu, India
| | - R L Akshaya
- Department of Biotechnology, School of Bioengineering, College of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur, 603 103, Tamil Nadu, India
| | - Udipt Ranjan Das
- Department of Biotechnology, School of Bioengineering, College of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur, 603 103, Tamil Nadu, India
| | - Sneha Satishkumar
- Department of Biotechnology, School of Bioengineering, College of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur, 603 103, Tamil Nadu, India
| | - N Selvamurugan
- Department of Biotechnology, School of Bioengineering, College of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur, 603 103, Tamil Nadu, India.
| |
Collapse
|
12
|
[68Ga]Ga-Pentixafor and Sodium [18F]Fluoride PET Can Non-Invasively Identify and Monitor the Dynamics of Orthodontic Tooth Movement in Mouse Model. Cells 2022; 11:cells11192949. [PMID: 36230911 PMCID: PMC9562206 DOI: 10.3390/cells11192949] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Revised: 09/15/2022] [Accepted: 09/17/2022] [Indexed: 12/02/2022] Open
Abstract
The cellular and molecular mechanisms of orthodontic tooth movement (OTM) are not yet fully understood, partly due to the lack of dynamical datasets within the same subject. Inflammation and calcification are two main processes during OTM. Given the high sensitivity and specificity of [68Ga]Ga-Pentixafor and Sodium [18F]Fluoride (Na[18F]F) for inflammation and calcification, respectively, the aim of this study is to assess their ability to identify and monitor the dynamics of OTM in an established mouse model. To monitor the processes during OTM in real time, animals were scanned using a small animal PET/CT during week 1, 3, and 5 post-implantation, with [68Ga]Ga-Pentixafor and Na[18F]F. Both tracers showed an increased uptake in the region of interest compared to the control. For [68Ga]Ga-Pentixafor, an increased uptake was observed within the 5-week trial, suggesting the continuous presence of inflammatory markers. Na[18F]F showed an increased uptake during the trial, indicating an intensification of bone remodelling. Interim and end-of-experiment histological assessments visualised increased amounts of chemokine receptor CXCR4 and TRAP-positive cells in the periodontal ligament on the compression side. This approach establishes the first in vivo model for periodontal remodelling during OTM, which efficiently detects and monitors the intricate dynamics of periodontal ligament.
Collapse
|
13
|
Fang YY, Lyu F, Abuwala N, Tal A, Chen AY, Taylor HS, Tal R. Chemokine C-X-C receptor 4 mediates recruitment of bone marrow-derived nonhematopoietic and immune cells to the pregnant uterus†. Biol Reprod 2022; 106:1083-1097. [PMID: 35134114 PMCID: PMC9198949 DOI: 10.1093/biolre/ioac029] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Revised: 01/24/2022] [Accepted: 01/28/2022] [Indexed: 02/05/2023] Open
Abstract
Bone marrow-derived progenitor cells (BMDPCs) are mobilized to the circulation in pregnancy and get recruited to the pregnant decidua where they contribute functionally to decidualization and successful implantation. However, the molecular mechanisms underlying BMDPCs recruitment to the decidua are unknown. CXCL12 ligand and its CXCR4 receptor play crucial roles in the mobilization and homing of stem/progenitor cells to various tissues. To investigate the role of CXCL12-CXCR4 axis in BMDPCs recruitment to decidua, we created transgenic GFP mice harboring CXCR4 gene susceptible to tamoxifen-inducible Cre-mediated ablation. These mice served as BM donors into wild-type C57BL/6 J female recipients using a 5-fluorouracil-based nongonadotoxic submyeloablation to achieve BM-specific CXCR4 knockout (CXCR4KO). Successful CXCR4 ablation was confirmed by RT-PCR and in vitro cell migration assays. Flow cytometry and immunohistochemistry showed a significant increase in GFP+ BM-derived cells (BMDCs) in the implantation site as compared to the nonpregnant uterus of control (2.7-fold) and CXCR4KO (1.8-fold) mice. This increase was uterus-specific and was not observed in other organs. This pregnancy-induced increase occurred in both hematopoietic (CD45+) and nonhematopoietic (CD45-) uterine BMDCs in control mice. In contrast, in CXCR4KO mice there was no increase in nonhematopoietic BMDCs in the pregnant uterus. Moreover, decidual recruitment of myeloid cells but not NK cells was diminished by BM CXCR4 deletion. Immunofluorescence showed the presence of nonhematopoietic GFP+ cells that were negative for CD45 (panleukocyte) and DBA (NK) markers in control but not CXCR4KO decidua. In conclusion, we report that CXCR4 expression in nonhematopoietic BMDPCs is essential for their recruitment to the pregnant decidua.
Collapse
Affiliation(s)
- Yuan-Yuan Fang
- Department of Obstetrics, Gynecology and Reproductive Sciences, Yale School of Medicine, New Haven, CT, USA
| | - Fang Lyu
- Department of Obstetrics, Gynecology and Reproductive Sciences, Yale School of Medicine, New Haven, CT, USA
| | - Nafeesa Abuwala
- Department of Obstetrics, Gynecology and Reproductive Sciences, Yale School of Medicine, New Haven, CT, USA
| | - Aya Tal
- Department of Obstetrics, Gynecology and Reproductive Sciences, Yale School of Medicine, New Haven, CT, USA
| | - Alice Y Chen
- Department of Obstetrics, Gynecology and Reproductive Sciences, Yale School of Medicine, New Haven, CT, USA
| | - Hugh S Taylor
- Department of Obstetrics, Gynecology and Reproductive Sciences, Yale School of Medicine, New Haven, CT, USA
| | - Reshef Tal
- Department of Obstetrics, Gynecology and Reproductive Sciences, Yale School of Medicine, New Haven, CT, USA
| |
Collapse
|
14
|
Wheelis SE, Biguetti CC, Natarajan S, Chandrashekar BL, Arteaga A, Allami JE, Garlet GP, Rodrigues DC. Effects of Dicationic Imidazolium-Based Ionic Liquid Coatings on Oral Osseointegration of Titanium Implants: A Biocompatibility Study in Multiple Rat Demographics. Genes (Basel) 2022; 13:genes13040642. [PMID: 35456448 PMCID: PMC9026960 DOI: 10.3390/genes13040642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Revised: 03/20/2022] [Accepted: 03/30/2022] [Indexed: 01/27/2023] Open
Abstract
Dicationic imidazolium-based ionic liquids with amino acid anions, such as IonL-phenylalanine (IonL-Phe), have been proposed as a multifunctional coating for titanium (Ti) dental implants. However, there has been no evaluation of the biocompatibility of these Ti coatings in the oral environment. This study aims to evaluate the effects of IonL-Phe on early healing and osseointegration of Ti in multiple rat demographics. IonL-Phe-coated and uncoated Ti screws were implanted into four demographic groups of rats to represent biological variations that could affect healing: young males (YMs) and females (YFs), ovariectomized (OVXFs) females, and old males (OMs). Samples underwent histopathological and histomorphometric analysis to evaluate healing at 7 and 30 days around IonL-coated and uncoated Ti. The real-time quantitative polymerase chain reaction was also conducted at the 2- and 7-day YM groups to evaluate molecular dynamics of healing while the IonL-Phe was present on the surface. IonL-coated and uncoated implants demonstrated similar histological signs of healing, while coated samples’ differential gene expression of immunological and bone markers was compared with uncoated implants at 2 and 7 days in YMs. While YMs presented suitable osseointegration for both uncoated and IonL-Phe-coated groups, decreased success rate in other demographics resulted from lack of supporting bone in YFs and poor bone quality in OVXFs and OMs. Overall, it was found that IonL-coated samples had increased bone-to-implant contact across all demographic groups. IonL-Phe coating led to successful osseointegration across all animal demographics and presented the potential to prevent failures in scenarios known to be challenged by bacteria.
Collapse
Affiliation(s)
- Sutton E. Wheelis
- Department of Bioengineering, The University of Texas at Dallas, Richardson, TX 75080, USA; (S.E.W.); (C.C.B.); (B.L.C.); (A.A.); (J.E.A.)
| | - Claudia C. Biguetti
- Department of Bioengineering, The University of Texas at Dallas, Richardson, TX 75080, USA; (S.E.W.); (C.C.B.); (B.L.C.); (A.A.); (J.E.A.)
| | - Shruti Natarajan
- Department of Biological Sciences, The University of Texas at Dallas, Richardson, TX 75080, USA;
- Texas A&M College of Dentistry, Dallas, TX 75246, USA
| | - Bhuvana Lakkasetter Chandrashekar
- Department of Bioengineering, The University of Texas at Dallas, Richardson, TX 75080, USA; (S.E.W.); (C.C.B.); (B.L.C.); (A.A.); (J.E.A.)
| | - Alexandra Arteaga
- Department of Bioengineering, The University of Texas at Dallas, Richardson, TX 75080, USA; (S.E.W.); (C.C.B.); (B.L.C.); (A.A.); (J.E.A.)
| | - Jihad El Allami
- Department of Bioengineering, The University of Texas at Dallas, Richardson, TX 75080, USA; (S.E.W.); (C.C.B.); (B.L.C.); (A.A.); (J.E.A.)
| | - Gustavo P. Garlet
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, São Paulo 01000, Brazil;
| | - Danieli C. Rodrigues
- Department of Bioengineering, The University of Texas at Dallas, Richardson, TX 75080, USA; (S.E.W.); (C.C.B.); (B.L.C.); (A.A.); (J.E.A.)
- Correspondence:
| |
Collapse
|
15
|
Miao KZ, Cozzone A, Caetano-Lopes J, Harris MP, Fisher S. Osteoclast activity sculpts craniofacial form to permit sensorineural patterning in the zebrafish skull. Front Endocrinol (Lausanne) 2022; 13:969481. [PMID: 36387889 PMCID: PMC9664155 DOI: 10.3389/fendo.2022.969481] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Accepted: 10/10/2022] [Indexed: 11/07/2022] Open
Abstract
Efforts to understand the morphogenesis of complex craniofacial structures have largely focused on the role of chondrocytes and osteoblasts. Along with these bone-creating cells, bone-resorbing osteoclasts are critical in homeostasis of adult skeletal structures, but there is currently limited information on their role in the complex morphogenetic events of craniofacial development. Fundamental aspects of skull formation and general skeletal development are conserved from zebrafish to mammals. Using a cathepsinK reporter, we documented osteoclast location in the developing zebrafish skull over several weeks, from 5.18 mm to 9.6 mm standard length (approximately 15 to 34 days post fertilization). While broad distribution of osteoclasts is consistent across individuals, they are sparse and the exact locations vary among fish and across developmental time points. Interestingly, we observed osteoclasts concentrating at areas associated with neuromasts and their associated nerves, in particular the hyomandibular foramina and around the supraorbital lateral line. These are areas of active remodeling. In contrast, other areas of rapid bone growth, such as the osteogenic fronts of the frontal and parietal bones, show no particular concentration of osteoclasts, suggesting that they play a special role in shaping bone near neuromasts and nerves. In csf1ra mutants lacking functional osteoclasts, the morphology of the cranial bone was disrupted in both areas. The hyomandibular foramen is present in the initial cartilage template, but after the initiation of ossification, the diameter of the canal is significantly smaller in the absence of osteoclasts. The diameter of the supraorbital lateral line canals was also reduced in the mutants, as was the number of pores associated with neuromasts, which allow for the passage of associated nerves through the bone. Our findings define important and previously unappreciated roles for osteoclast activity in shaping craniofacial skeletal structures with a particular role in bone modeling around peripheral cranial nerves, providing a scaffold for wiring the sensioneural system during craniofacial development. This has important implications for the formation of the evolutionarily diverse lateral line system, as well understanding the mechanism of neurologic sequelae of congenital osteoclast dysfunction in human craniofacial development.
Collapse
Affiliation(s)
- Kelly Z. Miao
- Department of Pharmacology and Experimental Therapeutics, Boston University Aram V. Chobanian & Edward Avedisian School of Medicine, Boston, MA, United States
| | - Austin Cozzone
- Department of Pharmacology and Experimental Therapeutics, Boston University Aram V. Chobanian & Edward Avedisian School of Medicine, Boston, MA, United States
| | - Joana Caetano-Lopes
- Department of Orthopaedic Surgery, Boston Children’s Hospital, Boston, MA, United States
- Department of Genetics, Harvard Medical School, Boston, MA, United States
| | - Matthew P. Harris
- Department of Orthopaedic Surgery, Boston Children’s Hospital, Boston, MA, United States
- Department of Genetics, Harvard Medical School, Boston, MA, United States
| | - Shannon Fisher
- Department of Pharmacology and Experimental Therapeutics, Boston University Aram V. Chobanian & Edward Avedisian School of Medicine, Boston, MA, United States
- *Correspondence: Shannon Fisher,
| |
Collapse
|
16
|
Salbach-Hirsch J, Rauner M, Hofbauer C, Hofbauer LC. New insights into the role of glycosaminoglycans in the endosteal bone microenvironment. Biol Chem 2021; 402:1415-1425. [PMID: 34323057 DOI: 10.1515/hsz-2021-0174] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2021] [Accepted: 07/14/2021] [Indexed: 12/19/2022]
Abstract
The bone microenvironment is a complex tissue in which heterogeneous cell populations of hematopoietic and mesenchymal origin interact with environmental cues to maintain tissue integrity. Both cellular and matrix components are subject to physiologic challenges and can dynamically respond by modifying cell/matrix interactions. When either component is impaired, the physiologic balance is lost. Here, we review the current state of knowledge of how glycosaminoglycans - organic components of the bone extracellular matrix - influence the bone micromilieu. We point out how they interact with mediators of distinct signaling pathways such as the RANKL/OPG axis, BMP and WNT signaling, and affect the activity of bone remodeling cells within the endosteal niche summarizing their potential for therapeutic intervention.
Collapse
Affiliation(s)
- Juliane Salbach-Hirsch
- Division of Endocrinology, Diabetes, and Metabolic Bone Diseases, Department of Medicine III, Medical Center, Technische Universität Dresden, D-01307 Dresden, Germany
- Center for Healthy Aging, Medical Center, Technische Universität Dresden, D-01307 Dresden, Germany
| | - Martina Rauner
- Division of Endocrinology, Diabetes, and Metabolic Bone Diseases, Department of Medicine III, Medical Center, Technische Universität Dresden, D-01307 Dresden, Germany
- Center for Healthy Aging, Medical Center, Technische Universität Dresden, D-01307 Dresden, Germany
| | - Christine Hofbauer
- NCT Dresden and University Hospital Carl Gustav Carus Dresden, Technische Universität Dresden, D-01307 Dresden, Germany
| | - Lorenz C Hofbauer
- Division of Endocrinology, Diabetes, and Metabolic Bone Diseases, Department of Medicine III, Medical Center, Technische Universität Dresden, D-01307 Dresden, Germany
- Center for Healthy Aging, Medical Center, Technische Universität Dresden, D-01307 Dresden, Germany
- Center for Regenerative Therapies Dresden (CRTD), D-01307 Dresden, Germany
| |
Collapse
|
17
|
Proteomic and genomic analysis of acid dentin lysate with focus on TGF-β signaling. Sci Rep 2021; 11:12247. [PMID: 34112817 PMCID: PMC8192760 DOI: 10.1038/s41598-021-89996-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Accepted: 04/19/2021] [Indexed: 02/05/2023] Open
Abstract
Particulate autologous tooth roots are increasingly used for alveolar bone augmentation; however, the proteomic profile of acid dentin lysate and the respective cellular response have not been investigated. Here we show that TGF-β1 is among the 226 proteins of acid dentin lysate (ADL) prepared from porcine teeth. RNA sequencing identified 231 strongly regulated genes when gingival fibroblasts were exposed to ADL. Out of these genes, about one third required activation of the TGF-β receptor type I kinase including interleukin 11 (IL11) and NADPH oxidase 4 (NOX4). Reverse transcription-quantitative polymerase chain reaction and immunoassay confirmed the TGF-β-dependent expression of IL11 and NOX4. The activation of canonical TGF-β signaling by ADL was further confirmed by the phosphorylation of Smad3 and translocation of Smad2/3, using Western blot and immunofluorescence staining, respectively. Finally, we showed that TGF-β activity released from dentin by acid lysis adsorbs to titanium and collagen membranes. These findings suggest that dentin particles are a rich source of TGF-β causing a major response of gingival fibroblasts.
Collapse
|
18
|
Midavaine É, Côté J, Sarret P. The multifaceted roles of the chemokines CCL2 and CXCL12 in osteophilic metastatic cancers. Cancer Metastasis Rev 2021; 40:427-445. [PMID: 33973098 DOI: 10.1007/s10555-021-09974-2] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Accepted: 04/30/2021] [Indexed: 02/06/2023]
Abstract
Breast and prostate cancers have a great propensity to metastasize to long bones. The development of bone metastases is life-threatening, incurable, and drastically reduces patients' quality of life. The chemokines CCL2 and CXCL12 and their respective receptors, CCR2 and CXCR4, are central instigators involved in all stages leading to cancer cell dissemination and secondary tumor formation in distant target organs. They orchestrate tumor cell survival, growth and migration, tumor invasion and angiogenesis, and the formation of micrometastases in the bone marrow. The bone niche is of particular importance in metastasis formation, as it expresses high levels of CCL2 and CXCL12, which attract tumor cells and contribute to malignancy. The limited number of available effective treatment strategies highlights the need to better understand the pathophysiology of bone metastases and reduce the skeletal tumor burden in patients diagnosed with metastatic bone disease. This review focuses on the involvement of the CCL2/CCR2 and CXCL12/CXCR4 chemokine axes in the formation and development of bone metastases, as well as on therapeutic perspectives aimed at targeting these chemokine-receptor pairs.
Collapse
Affiliation(s)
- Élora Midavaine
- Department of Pharmacology and Physiology, Faculty of Medicine and Health Sciences, Institut de pharmacologie de Sherbrooke, Université de Sherbrooke, 3001, 12e Avenue Nord, Sherbrooke, QC, Canada. .,Centre de recherche du Centre hospitalier universitaire de Sherbrooke, CIUSSS de l'Estrie - CHUS, Sherbrooke, QC, Canada.
| | - Jérôme Côté
- Department of Pharmacology and Physiology, Faculty of Medicine and Health Sciences, Institut de pharmacologie de Sherbrooke, Université de Sherbrooke, 3001, 12e Avenue Nord, Sherbrooke, QC, Canada.,Centre de recherche du Centre hospitalier universitaire de Sherbrooke, CIUSSS de l'Estrie - CHUS, Sherbrooke, QC, Canada
| | - Philippe Sarret
- Department of Pharmacology and Physiology, Faculty of Medicine and Health Sciences, Institut de pharmacologie de Sherbrooke, Université de Sherbrooke, 3001, 12e Avenue Nord, Sherbrooke, QC, Canada.,Centre de recherche du Centre hospitalier universitaire de Sherbrooke, CIUSSS de l'Estrie - CHUS, Sherbrooke, QC, Canada
| |
Collapse
|
19
|
Pagani CA, Huber AK, Hwang C, Marini S, Padmanabhan K, Livingston N, Nunez J, Sun Y, Edwards N, Cheng YH, Visser N, Yu P, Patel N, Greenstein JA, Rasheed H, Nelson R, Kessel K, Vasquez K, Strong AL, Hespe GE, Song JY, Wellik DM, Levi B. Novel Lineage-Tracing System to Identify Site-Specific Ectopic Bone Precursor Cells. Stem Cell Reports 2021; 16:626-640. [PMID: 33606989 PMCID: PMC7940250 DOI: 10.1016/j.stemcr.2021.01.011] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Revised: 01/19/2021] [Accepted: 01/21/2021] [Indexed: 11/30/2022] Open
Abstract
Heterotopic ossification (HO) is a form of pathological cell-fate change of mesenchymal stem/precursor cells (MSCs) that occurs following traumatic injury, limiting range of motion in extremities and causing pain. MSCs have been shown to differentiate to form bone; however, their lineage and aberrant processes after trauma are not well understood. Utilizing a well-established mouse HO model and inducible lineage-tracing mouse (Hoxa11-CreERT2;ROSA26-LSL-TdTomato), we found that Hoxa11-lineage cells represent HO progenitors specifically in the zeugopod. Bioinformatic single-cell transcriptomic and epigenomic analyses showed Hoxa11-lineage cells are regionally restricted mesenchymal cells that, after injury, gain the potential to undergo differentiation toward chondrocytes, osteoblasts, and adipocytes. This study identifies Hoxa11-lineage cells as zeugopod-specific ectopic bone progenitors and elucidates the fate specification and multipotency that mesenchymal cells acquire after injury. Furthermore, this highlights homeobox patterning genes as useful tools to trace region-specific progenitors and enable location-specific gene deletion. Lineage tracing, single-cell RNA-seq and single cell ATAC enable cell specific analysis of in vivo cell fate Hoxa11 lineage marks distinct mesenchymal precursors in the zeugopod Hoxa11 lineage mesenchymal precursors undergo an aberrant cell fate change towards ectopic bone and cartilage
Collapse
Affiliation(s)
- Chase A Pagani
- Center for Organogenesis and Trauma, Department of Surgery, University of Texas Southwestern, 6000 Harry Hines Boulevard, Dallas, TX 75235, USA
| | - Amanda K Huber
- Section of Plastic Surgery, Department of Surgery, University of Michigan, Ann Arbor, MI 48109, USA
| | - Charles Hwang
- Section of Plastic Surgery, Department of Surgery, University of Michigan, Ann Arbor, MI 48109, USA
| | - Simone Marini
- Section of Plastic Surgery, Department of Surgery, University of Michigan, Ann Arbor, MI 48109, USA
| | | | - Nicholas Livingston
- Center for Organogenesis and Trauma, Department of Surgery, University of Texas Southwestern, 6000 Harry Hines Boulevard, Dallas, TX 75235, USA
| | - Johanna Nunez
- Center for Organogenesis and Trauma, Department of Surgery, University of Texas Southwestern, 6000 Harry Hines Boulevard, Dallas, TX 75235, USA
| | - Yuxiao Sun
- Center for Organogenesis and Trauma, Department of Surgery, University of Texas Southwestern, 6000 Harry Hines Boulevard, Dallas, TX 75235, USA
| | - Nicole Edwards
- Section of Plastic Surgery, Department of Surgery, University of Michigan, Ann Arbor, MI 48109, USA
| | - Yu-Hao Cheng
- Institute for Cell Engineering, Johns Hopkins School of Medicine, Baltimore, MD 21205, USA
| | - Noelle Visser
- Section of Plastic Surgery, Department of Surgery, University of Michigan, Ann Arbor, MI 48109, USA
| | - Pauline Yu
- Section of Plastic Surgery, Department of Surgery, University of Michigan, Ann Arbor, MI 48109, USA
| | - Nicole Patel
- Section of Plastic Surgery, Department of Surgery, University of Michigan, Ann Arbor, MI 48109, USA
| | - Joseph A Greenstein
- Section of Plastic Surgery, Department of Surgery, University of Michigan, Ann Arbor, MI 48109, USA
| | - Husain Rasheed
- Section of Plastic Surgery, Department of Surgery, University of Michigan, Ann Arbor, MI 48109, USA
| | - Reagan Nelson
- Section of Plastic Surgery, Department of Surgery, University of Michigan, Ann Arbor, MI 48109, USA
| | - Karen Kessel
- Section of Plastic Surgery, Department of Surgery, University of Michigan, Ann Arbor, MI 48109, USA
| | - Kaetlin Vasquez
- Section of Plastic Surgery, Department of Surgery, University of Michigan, Ann Arbor, MI 48109, USA
| | - Amy L Strong
- Section of Plastic Surgery, Department of Surgery, University of Michigan, Ann Arbor, MI 48109, USA
| | - Geoffrey E Hespe
- Section of Plastic Surgery, Department of Surgery, University of Michigan, Ann Arbor, MI 48109, USA
| | - Jane Y Song
- Department of Cell and Regenerative Biology, University of Wisconsin, Madison, WI 53705, USA
| | - Deneen M Wellik
- Department of Cell and Regenerative Biology, University of Wisconsin, Madison, WI 53705, USA
| | - Benjamin Levi
- Center for Organogenesis and Trauma, Department of Surgery, University of Texas Southwestern, 6000 Harry Hines Boulevard, Dallas, TX 75235, USA.
| |
Collapse
|
20
|
Liu H, Yi X, Tu S, Cheng C, Luo J. Kaempferol promotes BMSC osteogenic differentiation and improves osteoporosis by downregulating miR-10a-3p and upregulating CXCL12. Mol Cell Endocrinol 2021; 520:111074. [PMID: 33157164 DOI: 10.1016/j.mce.2020.111074] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Revised: 10/30/2020] [Accepted: 11/01/2020] [Indexed: 02/08/2023]
Abstract
BACKGROUND Kaempferol has improved the functions of various human diseases. Here, we aimed to probe into the potential molecular mechanism of Kaempferol to ameliorate osteoporosis. METHODS Micro-computed tomography scanning was applied to assess the bone density of osteoporosis rats induced by ovariectomized. Quantitative real-time PCR was applied to detect the expressions of RUNX2, Osterix, CXCL12, and miR-10a-3p. Western blot, Alizarin red staining, Alkaline Phosphatase Diethanolamine Activity Kit were applied to confirm the in vitro functions of Kaempferol. RNA Immunoprecipitation and dual-luciferase reporter gene experiments were applied to study the potential mechanism. RESULTS The treatment of Kaempferol raised bone density in osteoporosis rats induced by ovariectomized, and boosted the osteogenic differentiation of bone marrow mesenchymal stem cells (BMSCs), and raised the expressions of RUNX2, Osterix, and CXCL12, and lessened miR-10a-3p. From the potential mechanism analysis, we corroborated that miR-10a-3p and CXCL12 bound to each other, and Kaempferol boosted BMSC osteogenic differentiation and ameliorated osteoporosis by lessening miR-10a-3p and raising CXCL12. CONCLUSION Our data expounded that Kaempferol boosted BMSC osteogenic differentiation and ameliorated osteoporosis by lessening miR-10a-3p and raising CXCL12.
Collapse
Affiliation(s)
- Hao Liu
- Department of Neurology, The Second Affiliated Hospital of Nanchang University, Nanchang, 330006, China
| | - Xin Yi
- Medical College of Yichun Vocational and Technical College, Yichun, China
| | - ShuTing Tu
- College of Medicine, Nanchang University, Nanchang, China
| | - Chong Cheng
- College of Medicine, Nanchang University, Nanchang, China
| | - Jun Luo
- Department of Rehabilitation, The Second Affiliated Hospital of Nanchang University, Nanchang, 330006, China.
| |
Collapse
|
21
|
Esposito A, Wang L, Li T, Miranda M, Spagnoli A. Role of Prx1-expressing skeletal cells and Prx1-expression in fracture repair. Bone 2020; 139:115521. [PMID: 32629173 PMCID: PMC7484205 DOI: 10.1016/j.bone.2020.115521] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Revised: 06/25/2020] [Accepted: 06/29/2020] [Indexed: 12/22/2022]
Abstract
The healing capacity of bones after fracture implies the existence of adult regenerative cells. However, information on identification and functional role of fracture-induced progenitors is still lacking. Paired-related homeobox 1 (Prx1) is expressed during skeletogenesis. We hypothesize that fracture recapitulates Prx1's expression, and Prx1 expressing cells are critical to induce repair. To address our hypothesis, we used a combination of in vivo and in vitro approaches, short and long-term cell tracking analyses of progenies and actively expressing cells, cell ablation studies, and rodent animal models for normal and defective fracture healing. We found that fracture elicits a periosteal and endosteal response of perivascular Prx1+ cells that participate in fracture healing and showed that Prx1-expressing cells have a functional role in the repair process. While Prx1-derived cells contribute to the callus, Prx1's expression decreases concurrently with differentiation into cartilaginous and bone cells, similarly to when Prx1+ cells are cultured in differentiating conditions. We determined that bone morphogenic protein 2 (BMP2), through C-X-C motif-ligand-12 (CXCL12) signaling, modulates the downregulation of Prx1. We demonstrated that fracture elicits an early increase in BMP2 expression, followed by a decrease in CXCL12 that in turn down-regulates Prx1, allowing cells to commit to osteochondrogenesis. In vivo and in vitro treatment with CXCR4 antagonist AMD3100 restored Prx1 expression by modulating the BMP2-CXCL12 axis. Our studies represent a shift in the current research that has primarily focused on the identification of markers for postnatal skeletal progenitors, and instead we characterized the function of a specific population (Prx1+ cells) and their expression marker (Prx1) as a crossroad in fracture repair. The identification of fracture-induced perivascular Prx1+ cells and regulation of Prx1's expression by BMP2 and in turn by CXCL12 in the orchestration of fracture repair, highlights a pathway in which to investigate defective mechanisms and therapeutic targets for fracture non-union.
Collapse
Affiliation(s)
- Alessandra Esposito
- Department of Orthopaedic Surgery, Section of Molecular Medicine, Rush University Medical Center, Chicago, IL, USA
| | - Lai Wang
- Department of Internal Medicine, Division of Rheumatology, Rush University Medical Center, Chicago, IL, USA
| | - Tieshi Li
- Department of Pediatrics, University of Nebraska Medical Center, Children's Hospital & Medical Center, Omaha, NE, USA
| | - Mariana Miranda
- Department of Orthopaedic Surgery, Section of Molecular Medicine, Rush University Medical Center, Chicago, IL, USA
| | - Anna Spagnoli
- Department of Orthopaedic Surgery, Section of Molecular Medicine, Rush University Medical Center, Chicago, IL, USA; Department of Pediatrics, Division of Pediatric Endocrinology, Rush University Medical Center, Chicago, IL, USA.
| |
Collapse
|
22
|
Verheijen N, Suttorp CM, van Rheden REM, Regan RF, Helmich MPAC, Kuijpers-Jagtman AM, Wagener FADTG. CXCL12-CXCR4 Interplay Facilitates Palatal Osteogenesis in Mice. Front Cell Dev Biol 2020; 8:771. [PMID: 32974338 PMCID: PMC7471603 DOI: 10.3389/fcell.2020.00771] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2020] [Accepted: 07/22/2020] [Indexed: 12/19/2022] Open
Abstract
Cranial neural crest cells (CNCCs), identified by expression of transcription factor Sox9, migrate to the first branchial arch and undergo proliferation and differentiation to form the cartilage and bone structures of the orofacial region, including the palatal bone. Sox9 promotes osteogenic differentiation and stimulates CXCL12-CXCR4 chemokine-receptor signaling, which elevates alkaline phosphatase (ALP)-activity in osteoblasts to initiate bone mineralization. Disintegration of the midline epithelial seam (MES) is crucial for palatal fusion. Since we earlier demonstrated chemokine-receptor mediated signaling by the MES, we hypothesized that chemokine CXCL12 is expressed by the disintegrating MES to promote the formation of an osteogenic center by CXCR4-positive osteoblasts. Disturbed migration of CNCCs by excess oxidative and inflammatory stress is associated with increased risk of cleft lip and palate (CLP). The cytoprotective heme oxygenase (HO) enzymes are powerful guardians harnessing injurious oxidative and inflammatory stressors and enhances osteogenic ALP-activity. By contrast, abrogation of HO-1 or HO-2 expression promotes pregnancy pathologies. We postulate that Sox9, CXCR4, and HO-1 are expressed in the ALP-activity positive osteogenic regions within the CNCCs-derived palatal mesenchyme. To investigate these hypotheses, we studied expression of Sox9, CXCL12, CXCR4, and HO-1 in relation to palatal osteogenesis between E15 and E16 using (immuno)histochemical staining of coronal palatal sections in wild-type (wt) mice. In addition, the effects of abrogated HO-2 expression in HO-2 KO mice and inhibited HO-1 and HO-2 activity by administrating HO-enzyme activity inhibitor SnMP at E11 in wt mice were investigated at E15 or E16 following palatal fusion. Overexpression of Sox9, CXCL12, CXCR4, and HO-1 was detected in the ALP-activity positive osteogenic regions within the palatal mesenchyme. Overexpression of Sox9 and CXCL12 by the disintegrating MES was detected. Neither palatal fusion nor MES disintegration seemed affected by either HO-2 abrogation or inhibition of HO-activity. Sox9 progenitors seem important to maintain the CXCR4-positive osteoblast pool to drive osteogenesis. Sox9 expression may facilitate MES disintegration and palatal fusion by promoting epithelial-to-mesenchymal transformation (EMT). CXCL12 expression by the MES and the palatal mesenchyme may promote osteogenic differentiation to create osteogenic centers. This study provides novel evidence that CXCL12-CXCR4 interplay facilitates palatal osteogenesis and palatal fusion in mice.
Collapse
Affiliation(s)
- Nanne Verheijen
- Department of Dentistry - Orthodontics and Craniofacial Biology, Radboud University Medical Center, Nijmegen, Netherlands
| | - Christiaan M Suttorp
- Department of Dentistry - Orthodontics and Craniofacial Biology, Radboud University Medical Center, Nijmegen, Netherlands.,Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, Netherlands
| | - René E M van Rheden
- Department of Dentistry - Orthodontics and Craniofacial Biology, Radboud University Medical Center, Nijmegen, Netherlands
| | - Raymond F Regan
- Department of Emergency Medicine, University of Maryland School of Medicine, Baltimore, MD, United States
| | - Maria P A C Helmich
- Department of Dentistry - Orthodontics and Craniofacial Biology, Radboud University Medical Center, Nijmegen, Netherlands
| | - Anne Marie Kuijpers-Jagtman
- Department of Orthodontics, University of Groningen, University Medical Center Groningen, Groningen, Netherlands.,Department of Orthodontics and Dentofacial Orthopedics, University of Bern, Bern, Switzerland.,Faculty of Dentistry, Universitas Indonesia, Jakarta, Indonesia
| | - Frank A D T G Wagener
- Department of Dentistry - Orthodontics and Craniofacial Biology, Radboud University Medical Center, Nijmegen, Netherlands.,Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, Netherlands
| |
Collapse
|
23
|
Ponte F, Kim HN, Iyer S, Han L, Almeida M, Manolagas SC. Cxcl12 Deletion in Mesenchymal Cells Increases Bone Turnover and Attenuates the Loss of Cortical Bone Caused by Estrogen Deficiency in Mice. J Bone Miner Res 2020; 35:1441-1451. [PMID: 32154948 PMCID: PMC7725417 DOI: 10.1002/jbmr.4002] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/15/2019] [Revised: 02/26/2020] [Accepted: 03/04/2020] [Indexed: 12/16/2022]
Abstract
CXCL12 is abundantly expressed in reticular cells associated with the perivascular niches of the bone marrow (BM) and is indispensable for B lymphopoiesis. Cxcl12 promotes osteoclastogenesis and has been implicated in pathologic bone resorption. We had shown earlier that estrogen receptor α deletion in osteoprogenitors and estrogen deficiency in mice increase Cxcl12 mRNA and protein levels in the BM plasma, respectively. We have now generated female and male mice with conditional deletion of a Cxcl12 allele in Prrx1 targeted cells (Cxcl12∆Prrx1 ) and show herein that they have a 90% decrease in B lymphocytes but increased erythrocytes and adipocytes in the marrow. Ovariectomy increased the expression of Cxcl12 and B-cell number in the Cxcl12f/f control mice, but these effects were abrogated in the Cxcl12∆Prrx1 mice. Cortical bone mass was not affected in Cxcl12∆Prrx1 mice. Albeit, the cortical bone loss caused by ovariectomy was greatly attenuated. Most unexpectedly, the rate of bone turnover in sex steroid-sufficient female or male Cxcl12∆Prrx1 mice was dramatically increased, as evidenced by a more than twofold increase in several osteoblast- and osteoclast-specific mRNAs, as well as increased mineral apposition and bone formation rate and increased osteoclast number in the endosteal surface. The magnitude of the Cxcl12∆Prrx1 -induced changes were much greater than those caused by ovariectomy or orchidectomy in the Cxcl12f/f mice. These results strengthen the evidence that CXCL12 contributes to the loss of cortical bone mass caused by estrogen deficiency. Moreover, they reveal for the first time that in addition to its effects on hematopoiesis, CXCL12 restrains bone turnover-without changing the balance between resorption and formation-by suppressing osteoblastogenesis and the osteoclastogenesis support provided by cells of the osteoblast lineage. © 2020 American Society for Bone and Mineral Research.
Collapse
Affiliation(s)
- Filipa Ponte
- Division of Endocrinology and Metabolism, Center for Osteoporosis and Metabolic Bone Diseases, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - Ha-Neui Kim
- Division of Endocrinology and Metabolism, Center for Osteoporosis and Metabolic Bone Diseases, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - Srividhya Iyer
- Department of Orthopedic Surgery, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - Li Han
- Division of Endocrinology and Metabolism, Center for Osteoporosis and Metabolic Bone Diseases, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - Maria Almeida
- Division of Endocrinology and Metabolism, Center for Osteoporosis and Metabolic Bone Diseases, University of Arkansas for Medical Sciences, Little Rock, AR, USA.,Department of Orthopedic Surgery, University of Arkansas for Medical Sciences, Little Rock, AR, USA.,The Central Arkansas Veterans Healthcare System, Little Rock, AR, USA
| | - Stavros C Manolagas
- Division of Endocrinology and Metabolism, Center for Osteoporosis and Metabolic Bone Diseases, University of Arkansas for Medical Sciences, Little Rock, AR, USA.,Department of Orthopedic Surgery, University of Arkansas for Medical Sciences, Little Rock, AR, USA.,The Central Arkansas Veterans Healthcare System, Little Rock, AR, USA
| |
Collapse
|
24
|
Abstract
Chemokines are a family of small proteins, subdivided by their conserved cysteine residues and common structural features. Chemokines interact with their cognate G-protein-coupled receptors to elicit downstream signals that result in cell migration, proliferation, and survival. This review presents evidence for how the various CXC and CC subfamily chemokines influence bone hemostasis by acting on osteoclasts, osteoblasts, and progenitor cells. Also discussed are the ways in which chemokines contribute to bone loss as a result of inflammatory diseases such as rheumatoid arthritis, HIV infection, and periodontal infection. Both positive and negative effects of chemokines on bone formation and bone loss are presented. In addition, the role of chemokines in altering the bone microenvironment through effects on angiogenesis and tumor invasion is discussed. Very few therapeutic agents that influence bone formation by targeting chemokines or chemokine receptors are available, although a few are currently being evaluated.
Collapse
Affiliation(s)
- Annette Gilchrist
- Department of Pharmaceutical Sciences, Midwestern University, Downers Grove, IL, USA.
| |
Collapse
|
25
|
Lian WS, Ko JY, Chen YS, Ke HJ, Hsieh CK, Kuo CW, Wang SY, Huang BW, Tseng JG, Wang FS. MicroRNA-29a represses osteoclast formation and protects against osteoporosis by regulating PCAF-mediated RANKL and CXCL12. Cell Death Dis 2019; 10:705. [PMID: 31543513 PMCID: PMC6755134 DOI: 10.1038/s41419-019-1942-1] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2019] [Revised: 08/20/2019] [Accepted: 08/26/2019] [Indexed: 12/30/2022]
Abstract
Osteoporosis deteriorates bone mass and biomechanical strength, becoming a life-threatening cause to the elderly. MicroRNA is known to regulate tissue remodeling; however, its role in the development of osteoporosis remains elusive. In this study, we uncovered that silencing miR-29a expression decreased mineralized matrix production in osteogenic cells, whereas osteoclast differentiation and pit formation were upregulated in bone marrow macrophages as co-incubated with the osteogenic cells in transwell plates. In vivo, decreased miR-29a expression occurred in ovariectomy-mediated osteoporotic skeletons. Mice overexpressing miR-29a in osteoblasts driven by osteocalcin promoter (miR-29aTg/OCN) displayed higher bone mineral density, trabecular volume and mineral acquisition than wild-type mice. The estrogen deficiency-induced loss of bone mass, trabecular morphometry, mechanical properties, mineral accretion and osteogenesis of bone marrow mesenchymal cells were compromised in miR-29aTg/OCN mice. miR-29a overexpression also attenuated the estrogen loss-mediated excessive osteoclast surface histopathology, osteoclast formation of bone marrow macrophages, receptor activator nuclear factor-κ ligand (RANKL) and C–X–C motif chemokine ligand 12 (CXCL12) expression. Treatment with miR-29a precursor improved the ovariectomy-mediated skeletal deterioration and biomechanical property loss. Mechanistically, miR-29a inhibited RANKL secretion in osteoblasts through binding to 3′-UTR of RANKL. It also suppressed the histone acetyltransferase PCAF-mediated acetylation of lysine 27 in histone 3 (H3K27ac) and decreased the H3K27ac enrichment in CXCL12 promoters. Taken together, miR-29a signaling in osteogenic cells protects bone tissue from osteoporosis through repressing osteoclast regulators RANKL and CXCL12 to reduce osteoclastogenic differentiation. Arrays of analyses shed new light on the miR-29a regulation of crosstalk between osteogenic and osteoclastogenic cells. We also highlight that increasing miR-29a function in osteoblasts is beneficial for bone anabolism to fend off estrogen deficiency-induced excessive osteoclastic resorption and osteoporosis.
Collapse
Affiliation(s)
- Wei-Shiung Lian
- Core Laboratory for Phenomics and Diagnostic, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung, Taiwan.,Department of Medical Research, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung, Taiwan
| | - Jih-Yang Ko
- Department of Orthopedic Surgery, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung, Taiwan
| | - Yu-Shan Chen
- Core Laboratory for Phenomics and Diagnostic, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung, Taiwan.,Department of Medical Research, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung, Taiwan
| | - Huei-Jing Ke
- Core Laboratory for Phenomics and Diagnostic, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung, Taiwan.,Department of Medical Research, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung, Taiwan
| | - Chin-Kuei Hsieh
- Core Laboratory for Phenomics and Diagnostic, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung, Taiwan.,Department of Medical Research, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung, Taiwan
| | - Chung-Wen Kuo
- Core Laboratory for Phenomics and Diagnostic, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung, Taiwan.,Department of Medical Research, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung, Taiwan
| | - Shao-Yu Wang
- Core Laboratory for Phenomics and Diagnostic, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung, Taiwan.,Department of Medical Research, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung, Taiwan
| | - Bo-Wun Huang
- Department of Mechanical Engineering, Cheng Shiu University, Kaohsiung, Taiwan
| | - Jung-Ge Tseng
- Department of Leisure and Sports Management, Cheng Shiu University, Kaohsiung, Taiwan
| | - Feng-Sheng Wang
- Core Laboratory for Phenomics and Diagnostic, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung, Taiwan. .,Department of Medical Research, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung, Taiwan. .,Graduate Institute of Clinical Medical Sciences, Chang Gung University College of Medicine, Kaohsiung, Taiwan.
| |
Collapse
|
26
|
Brylka LJ, Schinke T. Chemokines in Physiological and Pathological Bone Remodeling. Front Immunol 2019; 10:2182. [PMID: 31572390 PMCID: PMC6753917 DOI: 10.3389/fimmu.2019.02182] [Citation(s) in RCA: 101] [Impact Index Per Article: 20.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Accepted: 08/29/2019] [Indexed: 12/21/2022] Open
Abstract
The bone matrix is constantly remodeled by bone-resorbing osteoclasts and bone-forming osteoblasts. These two cell types are fundamentally different in terms of progenitor cells, mode of action and regulation by specific molecules, acting either systemically or locally. Importantly, there is increasing evidence for an impact of cell types or molecules of the adaptive and innate immune system on bone remodeling. Understanding these influences is the major goal of a novel research area termed osteoimmunology, which is of key relevance in the context of inflammation-induced bone loss, skeletal metastases, and diseases of impaired bone remodeling, such as osteoporosis. This review article aims at summarizing the current knowledge on one particular aspect of osteoimmunology, namely the impact of chemokines on skeletal cells in order to regulate bone remodeling under physiological and pathological conditions. Chemokines have key roles in the adaptive immune system by controlling migration, localization, and function of immune cells during inflammation. The vast majority of chemokines are divided into two subgroups based on the pattern of cysteine residues. More specifically, there are 27 known C-C-chemokines, binding to 10 different C-C receptors, and 17 known C-X-C-chemokines binding to seven different C-X-C receptors. Three additional chemokines do not fall into this category, and only one of them, i.e., CX3CL1, has been shown to influence bone remodeling cell types. There is a large amount of published studies demonstrating specific effects of certain chemokines on differentiation and function of osteoclasts and/or osteoblasts. Chemokine signaling by skeletal cells or by other cells of the bone marrow niche regulates bone formation and resorption through autocrine and paracrine mechanisms. In vivo evidence from mouse deficiency models strongly supports the role of certain chemokine signaling pathways in bone remodeling. We will summarize these data in the present review with a special focus on the most established subsets of chemokines. In combination with the other review articles of this issue, the knowledge presented here confirms that there is a physiologically relevant crosstalk between the innate immune system and bone remodeling cell types, whose molecular understanding is of high clinical relevance.
Collapse
Affiliation(s)
- Laura J Brylka
- Department of Osteology and Biomechanics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Thorsten Schinke
- Department of Osteology and Biomechanics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| |
Collapse
|
27
|
Sabbieti MG, Lacava G, Amaroli A, Marchetti L, Censi R, Di Martino P, Agas D. Molecular Adjuvants Based on Plasmids Encoding Protein Aggregation Domains Affect Bone Marrow Niche Homeostasis. Curr Gene Ther 2019; 17:391-397. [PMID: 29303078 PMCID: PMC6751345 DOI: 10.2174/1566523218666180105122626] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2017] [Revised: 12/12/2017] [Accepted: 12/29/2017] [Indexed: 12/19/2022]
Abstract
Background: During last years, DNA vaccine immunogenicity has been optimized by the employment of co-stimulatory molecules and molecular adjuvants. It has been reported that plasmid (pATRex), encompassing the DNA sequence for the von Willebrand A (vWA/A) domain of the An-thrax Toxin Receptor-1 (ANTXR-1, alias TEM8, Tumor Endothelial Marker 8), acts as strong immune adjuvant by inducing formation of insoluble intracellular aggregates. Markedly, we faced with upsetting findings regarding the safety of pATRex as adjuvant since the aggregosome formation prompted to os-teopenia in mice. Objective: The present study provides additional evidences about the proteinaceous adjuvants action within bone marrow and questioned regarding the self-aggregation protein adjuvants immunotoxicity on marrow niches. Methods & Results: Using histological, biochemical and proteomic assays we shed light on pATRex effects within bone marrow niche and specifically we evidenced an aplastic-like bone marrow with dis-rupted cytokine/chemokine production. Conclusion: The above findings provide compelling support to the thesis that adjuvants based on plas-mids encoding protein aggregation domains disrupt the physiological features of the bone marrow ele-ments.
Collapse
Affiliation(s)
- Maria Giovanna Sabbieti
- School of Biosciences and Veterinary Medicine, University of Camerino, 62032 Camerino (MC), Italy
| | - Giovanna Lacava
- School of Biosciences and Veterinary Medicine, University of Camerino, 62032 Camerino (MC), Italy
| | - Andrea Amaroli
- Department of Surgical and Diagnostic Sciences, University of Genova, Genova, Italy
| | - Luigi Marchetti
- School of Biosciences and Veterinary Medicine, University of Camerino, 62032 Camerino (MC), Italy
| | - Roberta Censi
- School of Pharmacy, University of Camerino, Camerino, (MC), Italy
| | - Piera Di Martino
- School of Pharmacy, University of Camerino, Camerino, (MC), Italy
| | - Dimitrios Agas
- School of Biosciences and Veterinary Medicine, University of Camerino, 62032 Camerino (MC), Italy
| |
Collapse
|
28
|
He C, Li D, Gao J, Li J, Liu Z, Xu W. Inhibition of CXCR4 inhibits the proliferation and osteogenic potential of fibroblasts from ankylosing spondylitis via the Wnt/β‑catenin pathway. Mol Med Rep 2019; 19:3237-3246. [PMID: 30816502 DOI: 10.3892/mmr.2019.9980] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2018] [Accepted: 10/15/2018] [Indexed: 11/06/2022] Open
Abstract
Ankylosing spondylitis (AS) is an autoimmune condition characterized by chronic inflammation and abnormal ossification as the primary features of the disease. The aim of the present study was to investigate the role of C‑X‑C chemokine receptor type 4 (CXCR4) in ossification from patients with AS. CXCR4 expression was assessed by western blot analysis and immunohistochemistry analysis of tissues obtained from patients with AS and controls. Fibroblasts were isolated, cultured and incubated with AMD 3100 and stromal cell‑derived factor‑1 to inhibit and promote CXCR4 levels, respectively. CXCR4 was upregulated in hip synovial tissues from patients with AS compared with that observed in controls. AS fibroblasts exhibited increased proliferation and growth rates. Inhibition of CXCR4 increased the phosphorylation of β‑catenin and downregulated the expression of β‑catenin, v‑myc avian myelocytomatosis viral oncogene homolog, cyclin D1 and osteocalcin. Alizarin red staining demonstrated a decrease in biomineralization activity following the inhibition of CXCR4. These data support the hypothesis that inhibiting CXCR4 in patients with AS may suppress the ossification of fibroblasts.
Collapse
Affiliation(s)
- Chongru He
- Department of Orthopedics, Changhai Hospital Affiliated to The Second Military Medical University, Shanghai 200433, P.R. China
| | - Dahe Li
- Department of Orthopedics, The 960th Hospital of People's Liberation Army, Tai'an, Shandong 271000, P.R. China
| | - Jinwei Gao
- Department of Orthopedics, Jiangyan Traditional Chinese Medicine Hospital, Taizhou, Jiangsu 225500, P.R. China
| | - Jia Li
- Department of Orthopedics, Jiangyan Traditional Chinese Medicine Hospital, Taizhou, Jiangsu 225500, P.R. China
| | - Zhongtang Liu
- Department of Orthopedics, Changhai Hospital Affiliated to The Second Military Medical University, Shanghai 200433, P.R. China
| | - Weidong Xu
- Department of Orthopedics, Changhai Hospital Affiliated to The Second Military Medical University, Shanghai 200433, P.R. China
| |
Collapse
|
29
|
Thompson J, Mendoza F, Tan E, Bertol JW, Gaggar AS, Jun G, Biguetti C, Fakhouri WD. A cleft lip and palate gene, Irf6, is involved in osteoblast differentiation of craniofacial bone. Dev Dyn 2019; 248:221-232. [PMID: 30684382 DOI: 10.1002/dvdy.13] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2018] [Revised: 01/14/2019] [Accepted: 01/15/2019] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Interferon regulatory factor 6 (IRF6) plays a critical role in embryonic tissue development, including differentiation of epithelial cells. Besides orofacial clefting due to haploinsufficiency of IRF6, recent human genetic studies indicated that mutations in IRF6 are linked to small mandible and digit abnormalities. The function of IRF6 has been well studied in oral epithelium; however, its role in craniofacial skeletal formation remains unknown. In this study, we investigated the role of Irf6 in craniofacial bone development using comparative analyses between wild-type (WT) and Irf6-null littermate mice. RESULTS Immunostaining revealed the expression of IRF6 in hypertrophic chondrocytes, osteocytes, and bone matrix of craniofacial tissues. Histological analysis of Irf6-null mice showed a remarkable reduction in the number of lacunae, embedded osteocytes in matrices, and a reduction in mineralization during bone formation. These abnormalities may explain the decreased craniofacial bone density detected by micro-CT, loss of incisors, and mandibular bone abnormality of Irf6-null mice. To validate the autonomous role of IRF6 in bone, extracted primary osteoblasts from calvarial bone of WT and Irf6-null pups showed no effect on osteoblastic viability and proliferation. However, a reduction in mineralization was detected in Irf6-null cells. CONCLUSIONS Altogether, these findings suggest an autonomous role of Irf6 in regulating bone differentiation and mineralization. Developmental Dynamics 248:221-232, 2019. © 2019 Wiley Periodicals, Inc.
Collapse
Affiliation(s)
- Jake Thompson
- Center for Craniofacial Research, Department of Diagnostic and Biomedical Sciences, School of Dentistry, University of Texas Health Science Center at Houston, Houston, Texas
| | - Fabian Mendoza
- Center for Craniofacial Research, Department of Diagnostic and Biomedical Sciences, School of Dentistry, University of Texas Health Science Center at Houston, Houston, Texas
| | - Ethan Tan
- Center for Craniofacial Research, Department of Diagnostic and Biomedical Sciences, School of Dentistry, University of Texas Health Science Center at Houston, Houston, Texas
| | - Jessica Wildgrube Bertol
- Center for Craniofacial Research, Department of Diagnostic and Biomedical Sciences, School of Dentistry, University of Texas Health Science Center at Houston, Houston, Texas
| | - Arju S Gaggar
- School of Public Health, University of Texas Health Science Center at Houston, Houston, Texas
| | - Goo Jun
- School of Public Health, University of Texas Health Science Center at Houston, Houston, Texas
| | - Claudia Biguetti
- Department of Basic Sciences, São Paulo State University (Unesp), School of Dentistry, Araçatuba, São Paulo
| | - Walid D Fakhouri
- Center for Craniofacial Research, Department of Diagnostic and Biomedical Sciences, School of Dentistry, University of Texas Health Science Center at Houston, Houston, Texas.,Department of Pediatrics, McGovern Medical School, University of Texas Health Science Center, Houston, Texas.,Graduate School of Biomedical Sciences, University of Texas Health Science Center and MD Anderson Cancer Center at Houston, Houston, Texas
| |
Collapse
|
30
|
Kukolj T, Trivanović D, Mojsilović S, Okić Djordjević I, Obradović H, Krstić J, Jauković A, Bugarski D. IL-33 guides osteogenesis and increases proliferation and pluripotency marker expression in dental stem cells. Cell Prolif 2018; 52:e12533. [PMID: 30430681 PMCID: PMC6430470 DOI: 10.1111/cpr.12533] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2018] [Revised: 08/03/2018] [Accepted: 08/28/2018] [Indexed: 12/12/2022] Open
Abstract
Objectives Soluble IL‐33 (interleukin (IL)‐1‐like cytokine) acts as endogenous alarm signal (alarmin). Since alarmins, besides activating immune system, act to restore tissue homeostasis, we investigated whether IL‐33 exerts beneficial effects on oral stem cell pull. Materials and Methods Clonogenicity, proliferation, differentiation and senescence of stem cells derived from human periodontal ligament (PDLSCs) and dental pulp (DPSCs) were determined after in vitro exposure to IL‐33. Cellular changes were detected by flow cytometry, Western blot, immunocytochemistry and semiquantitative RT‐PCR. Results IL‐33 stimulated proliferation, clonogenicity and expression of pluripotency markers, OCT‐4, SOX‐2 and NANOG, but it inhibited ALP activity and mineralization in both PDLSCs and DPSCs. Higher Ki67 expression and reduced β‐galactosidase activity in IL‐33‐treated cells were demonstrated, whereas these trends were more conspicuous in osteogenic medium. However, after 7‐day IL‐33 pretreatment, differentiation capacity of IL‐33‐pretreated cells was retained, and increased ALP activity was observed in both cell types. Results showed that IL‐33 regulates NF‐κB and β‐catenin signalling, indicating the association of these molecules with changes observed in IL‐33‐treated PDLSCs and DPSCs, particularly their proliferation, pluripotency‐associated marker expression and osteogenesis. Conclusions IL‐33 treatment impairs osteogenesis of PDLSCs and DPSCs, while increases their clonogenicity, proliferation and pluripotency marker expression. After exposure to IL‐33, osteogenic capacity of cells stayed intact. NF‐κB and β‐catenin are implicated in the effects achieved by IL‐33 in PDLSCs and DPSCs.
Collapse
Affiliation(s)
- Tamara Kukolj
- Laboratory for Experimental Hematology and Stem Cells, Institute for Medical Research, University of Belgrade, Belgrade, Serbia
| | - Drenka Trivanović
- Laboratory for Experimental Hematology and Stem Cells, Institute for Medical Research, University of Belgrade, Belgrade, Serbia
| | - Slavko Mojsilović
- Laboratory for Experimental Hematology and Stem Cells, Institute for Medical Research, University of Belgrade, Belgrade, Serbia
| | - Ivana Okić Djordjević
- Laboratory for Experimental Hematology and Stem Cells, Institute for Medical Research, University of Belgrade, Belgrade, Serbia
| | - Hristina Obradović
- Laboratory for Experimental Hematology and Stem Cells, Institute for Medical Research, University of Belgrade, Belgrade, Serbia
| | - Jelena Krstić
- Laboratory for Experimental Hematology and Stem Cells, Institute for Medical Research, University of Belgrade, Belgrade, Serbia
| | - Aleksandra Jauković
- Laboratory for Experimental Hematology and Stem Cells, Institute for Medical Research, University of Belgrade, Belgrade, Serbia
| | - Diana Bugarski
- Laboratory for Experimental Hematology and Stem Cells, Institute for Medical Research, University of Belgrade, Belgrade, Serbia
| |
Collapse
|
31
|
Boyce BF, Li J, Xing L, Yao Z. Bone Remodeling and the Role of TRAF3 in Osteoclastic Bone Resorption. Front Immunol 2018; 9:2263. [PMID: 30323820 PMCID: PMC6172306 DOI: 10.3389/fimmu.2018.02263] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Accepted: 09/11/2018] [Indexed: 02/05/2023] Open
Abstract
Skeletal health is maintained by bone remodeling, a process in which microscopic sites of effete or damaged bone are degraded on bone surfaces by osteoclasts and subsequently replaced by new bone, which is laid down by osteoblasts. This normal process can be disturbed in a variety of pathologic processes, including localized or generalized inflammation, metabolic and endocrine disorders, primary and metastatic cancers, and during aging as a result of low-grade chronic inflammation. Osteoclast formation and activity are promoted by factors, including cytokines, hormones, growth factors, and free radicals, and require expression of macrophage-colony stimulating factor (M-CSF) and receptor activator of NF-κB ligand (RANKL) by accessory cells in the bone marrow, including osteoblastic and immune cells. Expression of TNF receptor-associated factor 6 (TRAF6) is required in osteoclast precursors to mediate RANKL-induced activation of NF-κB, which is also necessary for osteoclast formation and activity. TRAF3, in contrast is not required for osteoclast formation, but it limits RANKL-induced osteoclast formation by promoting proteasomal degradation of NF-κB-inducing kinase in a complex with TRAF2 and cellular inhibitor of apoptosis proteins (cIAP). TRAF3 also limits osteoclast formation induced by TNF, which mediates inflammation and joint destruction in inflammatory diseases, including rheumatoid arthritis. Chloroquine and hydroxychloroquine, anti-inflammatory drugs used to treat rheumatoid arthritis, prevent TRAF3 degradation in osteoclast precursors and inhibit osteoclast formation in vitro. Chloroquine also inhibits bone destruction induced by ovariectomy and parathyroid hormone in mice in vivo. Mice genetically engineered to have TRAF3 deleted in osteoclast precursors and macrophages develop early onset osteoporosis, inflammation in multiple tissues, infections, and tumors, indicating that TRAF3 suppresses inflammation and tumors in myeloid cells. Mice with TRAF3 conditionally deleted in mesenchymal cells also develop early onset osteoporosis due to a combination of increased osteoclast formation and reduced osteoblast formation. TRAF3 protein levels decrease in bone and bone marrow during aging in mice and humans. Development of drugs to prevent TRAF3 degradation in immune and bone cells could be a novel therapeutic approach to prevent or reduce bone loss and the incidence of several common diseases associated with aging.
Collapse
Affiliation(s)
- Brendan F. Boyce
- Department of Pathology and Laboratory Medicine, Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, NY, United States
| | | | | | | |
Collapse
|
32
|
Yang SC, Wu CH, Tu YK, Huang SY, Chou PC. Exposure to 2,3,7,8-tetrachlorodibenzo-p-dioxin increases the activation of aryl hydrocarbon receptor and is associated with the aggressiveness of osteosarcoma MG-63 osteoblast-like cells. Oncol Lett 2018; 16:3849-3857. [PMID: 30127998 PMCID: PMC6096154 DOI: 10.3892/ol.2018.9098] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2017] [Accepted: 06/29/2018] [Indexed: 12/20/2022] Open
Abstract
The aryl hydrocarbon receptor (AhR) is a ligand-dependent transcription factor whose activity is modulated by xenobiotics and physiological ligands. Activation of the AhR by environmental xenobiotics may induce a conformational change in AhR and has been implicated in a variety of cellular processes, including inflammation and tumorigenesis. It is unknown whether the activation of AhR serves a role in modulating the progression of osteosarcoma. The osteosarcoma cell line MG-63, was treated with AhR ligand, 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD). TCDD treatment degrades AhR expression through activation of the AhR signaling pathway, however there were no survival differences observed in MG-63 cells. There were concomitant elevations of cyclooxygenase-2 and receptor activator of nuclear factor-κB ligand secretion from MG-63 cells upon TCDD treatment on a protein and mRNA level at 24 and 72 h. In addition, TCDD treatment also increases the production of prostaglandin E2 on MG-63 cells, and induces the expression of chemokine receptor CXCR4. However, CXCL12 production was not altered in MG-63 cells when stimulated with TCDD. The AhR antagonist CH-223191, blocks the effects on TCDD-induced RANKL, COX-2, PGE2 and CXCR4 changes. In conclusion, these findings suggest that AhR signal therapy should be further explored as a therapeutic option for the treatment of osteosarcoma.
Collapse
Affiliation(s)
- Shih-Chieh Yang
- Department of Orthopedic Surgery, E-Da Hospital, I-Shou University, Kaohsiung 82445, Taiwan, R.O.C
| | - Chin-Hsien Wu
- Department of Orthopedic Surgery, E-Da Hospital, I-Shou University, Kaohsiung 82445, Taiwan, R.O.C
| | - Yuan-Kun Tu
- Department of Orthopedic Surgery, E-Da Hospital, I-Shou University, Kaohsiung 82445, Taiwan, R.O.C
| | - Shin-Yu Huang
- Department of Thoracic Medicine, Chang Gung Medical Foundation, Chang Gung University, College of Medicine, Taoyuan 33305, Taiwan, R.O.C
| | - Pai-Chien Chou
- Department of Thoracic Medicine, Saint Paul's Hospital, Taoyuan 33069, Taiwan, R.O.C.,Department of Thoracic Medicine, Chang Gung Medical Foundation, Chang Gung University, College of Medicine, Taoyuan 33305, Taiwan, R.O.C
| |
Collapse
|
33
|
Yin P, Li Y, Lv H, Deng Y, Meng Y, Zhang L, Tang P. Exchange of genetic material: a new paradigm in bone cell communications. Cell Mol Life Sci 2018; 75:1989-1998. [PMID: 29487950 PMCID: PMC11105778 DOI: 10.1007/s00018-018-2782-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2017] [Revised: 02/02/2018] [Accepted: 02/19/2018] [Indexed: 12/21/2022]
Abstract
An emerging concept in intercellular communication in mammals is that communication can be mediated by exchange of genetic material, mainly in the form of RNAs. In this review, we discuss recent studies that describe the trafficking of genetic material with a focus on bone cell communication. Three major carriers are discussed: gap junctions, protein-binding complexes, and genetic material exchange mediated by extracellular vesicles. While protein-level exchange has been well documented, no review has summarized the novel paradigm of cell-to-cell communication by genetic information exchange in bone tissues or its biological relevance in terms of bone homeostasis and bone-related diseases. The purpose of this review is to promote further understanding of this novel discovery regarding bone cell communication and provide references for further investigations.
Collapse
Affiliation(s)
- Pengbin Yin
- Department of Orthopaedics, Chinese PLA General Hospital, No. 28 Fuxing Road, Beijing, 100853, People's Republic of China
| | - Yi Li
- Department of Orthopaedics, Chinese PLA General Hospital, No. 28 Fuxing Road, Beijing, 100853, People's Republic of China
| | - Houchen Lv
- Department of Orthopaedics, Chinese PLA General Hospital, No. 28 Fuxing Road, Beijing, 100853, People's Republic of China
| | - Yuan Deng
- Department of Orthopaedics, Chinese PLA General Hospital, No. 28 Fuxing Road, Beijing, 100853, People's Republic of China
| | - Yutong Meng
- Department of Orthopaedics, Chinese PLA General Hospital, No. 28 Fuxing Road, Beijing, 100853, People's Republic of China
| | - Licheng Zhang
- Department of Orthopaedics, Chinese PLA General Hospital, No. 28 Fuxing Road, Beijing, 100853, People's Republic of China.
| | - Peifu Tang
- Department of Orthopaedics, Chinese PLA General Hospital, No. 28 Fuxing Road, Beijing, 100853, People's Republic of China.
| |
Collapse
|
34
|
Lim R, Li L, Chew N, Yong EL. The prenylflavonoid Icaritin enhances osteoblast proliferation and function by signal transducer and activator of transcription factor 3 (STAT-3) regulation of C-X-C chemokine receptor type 4 (CXCR4) expression. Bone 2017; 105:122-133. [PMID: 28863947 DOI: 10.1016/j.bone.2017.08.028] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/05/2017] [Revised: 08/23/2017] [Accepted: 08/28/2017] [Indexed: 12/12/2022]
Abstract
In this study, we examined the effects of a natural prenylflavonoid Icaritin (ICT), on human osteoblast proliferation and osteogenic function. We observed that ICT dose-dependently enhanced osteoblast proliferation by ~15% over a 7day period. This increase in cell proliferation was associated with corresponding increases in osteoblast functions as measured by ALP secretion, intracellular calcium ions influx and calcium deposition. These anabolic effects were associated with a 4-fold increase in CXCR4 mRNA and protein expression. Silencing of CXCR4 protein expression using small interfering RNA reversed ICT-induced increase in cell proliferation, ALP activity and calcium deposition. Interestingly, we observed that ICT dose-dependently increased STAT-3 phosphorylation; and this resulted in increased binding of phosphorylated STAT-3 to the promoter region of the CXCR4 gene, to increase CXCR4 protein expression. Furthermore, we found that inhibition of STAT-3 phosphorylation resulted in a decrease in CXCR4 protein expression; whilst increasing phosphorylation of STAT-3 using a constitutive active STAT-3 vector significantly increased CXCR4 levels. Moreover, the chemical inhibition of STAT-3 phosphorylation annulled our previously observed ICT-induced increases of osteoblast proliferation and function. Finally, in a rat model of estrogen-deficient osteoporosis, ICT restored both osteoblasts numbers and CXCR4 expression. Taken together, both cellular and animal models support the novel findings that ICT; through the phosphorylation of STAT-3, up-regulated CXCR4, to increase osteoblast proliferation and function.
Collapse
Affiliation(s)
- Rzl Lim
- Department of Obstetrics & Gynaecology, National University of Singapore, Singapore.
| | - L Li
- Department of Medicine, National University of, Singapore, Singapore
| | - N Chew
- Department of Medicine, National University of, Singapore, Singapore; Division of Infectious Diseases, National University Hospital Singapore, Singapore.
| | - E L Yong
- Department of Obstetrics & Gynaecology, National University of Singapore, Singapore.
| |
Collapse
|
35
|
Tang K, Wu J, Xiong Z, Ji Y, Sun T, Guo X. Human acellular amniotic membrane: A potential osteoinductive biomaterial for bone regeneration. J Biomater Appl 2017; 32:754-764. [PMID: 29105544 DOI: 10.1177/0885328217739753] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Human acellular amniotic membrane is an acellular, naturally extracellular matrix material with various bioactive factors, which applied in tissue engineering in clinic. Several studies have applied human acellular amniotic membrane in skin and ocular surface tissue engineering to enhance tissue regeneration. However, the application of human acellular amniotic membrane in bone tissue engineering was rarely investigated. The aim of the current study was to investigate the osteoinductivity, angiogenesis and the early molecular changes of human acellular amniotic membrane to bone regeneration. Our results showed that human acellular amniotic membrane with excellent biocompatibility was beneficial for bone marrow mesenchymal stem cells proliferation and osteogenic differentiation. In rat femoral defect model, the existence of human acellular amniotic membrane significantly improved bone regeneration in the defects. The gene expression of CXCR-4, MCP-1, OC and CatK which were connected with cells recruitment and bone remodeling, was enhanced in the defects implanted with human acellular amniotic membrane. The results of this study suggest that human acellular amniotic membrane is an osteoinductive biomaterial for bone regeneration.
Collapse
Affiliation(s)
- Kai Tang
- 1 Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jiayi Wu
- 2 Department of Dermatology, Tongji Hospital, Tongji Medical College, Huazhong University of Science & Technology, Wuhan, China
| | - Zekang Xiong
- 1 Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yanhui Ji
- 1 Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Tingfang Sun
- 1 Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xiaodong Guo
- 1 Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| |
Collapse
|
36
|
Dyskova T, Gallo J, Kriegova E. The Role of the Chemokine System in Tissue Response to Prosthetic By-products Leading to Periprosthetic Osteolysis and Aseptic Loosening. Front Immunol 2017; 8:1026. [PMID: 28883822 PMCID: PMC5573717 DOI: 10.3389/fimmu.2017.01026] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2017] [Accepted: 08/08/2017] [Indexed: 12/27/2022] Open
Abstract
Millions of total joint replacements are performed annually worldwide, and the number is increasing every year. The overall proportion of patients achieving a successful outcome is about 80–90% in a 10–20-years time horizon postoperatively, periprosthetic osteolysis (PPOL) and aseptic loosening (AL) being the most frequent reasons for knee and hip implant failure and reoperations. The chemokine system (chemokine receptors and chemokines) is crucially involved in the inflammatory and osteolytic processes leading to PPOL/AL. Thus, the modulation of the interactions within the chemokine system may influence the extent of PPOL. Indeed, recent studies in murine models reported that (i) blocking the CCR2–CCL2 or CXCR2–CXCL2 axis or (ii) activation of the CXCR4–CXCL12 axis attenuate the osteolysis of artificial joints. Importantly, chemokines, inhibitory mutant chemokines, antagonists of chemokine receptors, or neutralizing antibodies to the chemokine system attached to or incorporated into the implant surface may influence the tissue responses and mitigate PPOL, thus increasing prosthesis longevity. This review summarizes the current state of the art of the knowledge of the chemokine system in human PPOL/AL. Furthermore, the potential for attenuating cell trafficking to the bone–implant interface and influencing tissue responses through modulation of the chemokine system is delineated. Additionally, the prospects of using immunoregenerative biomaterials (including chemokines) for the prevention of failed implants are discussed. Finally, this review highlights the need for a more sophisticated understanding of implant debris-induced changes in the chemokine system to mitigate this response effectively.
Collapse
Affiliation(s)
- Tereza Dyskova
- Faculty of Medicine and Dentistry, Department of Immunology, Palacky University Olomouc, Olomouc, Czechia
| | - Jiri Gallo
- Faculty of Medicine and Dentistry, Department of Orthopaedics, Palacky University Olomouc, University Hospital Olomouc, Olomouc, Czechia
| | - Eva Kriegova
- Faculty of Medicine and Dentistry, Department of Immunology, Palacky University Olomouc, Olomouc, Czechia
| |
Collapse
|
37
|
Continuous blockade of CXCR4 results in dramatic mobilization and expansion of hematopoietic stem and progenitor cells. Blood 2017; 129:2939-2949. [PMID: 28400375 DOI: 10.1182/blood-2016-10-746909] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2016] [Accepted: 03/24/2017] [Indexed: 01/24/2023] Open
Abstract
Interaction between the chemokine receptor CXCR4 and its chief ligand CXCL12 plays a critical role in the retention and migration of hematopoietic stem and progenitor cells (HSPCs) in the bone marrow (BM) microenvironment. In this study, qualitative and quantitative effects of long-term pharmacologic inhibition of the CXCR4/CXCL12 axis on the HSPC compartment were investigated by using 3 structurally unrelated small molecule CXCR4 antagonists. A >10-fold increase in mobilization efficiency was achieved by administering the antagonists as a subcutaneous continuous infusion for 2 weeks compared to a single bolus injection. A concurrent increase in self-renewing proliferation leading to a twofold to fourfold expansion of the HSPC pool in the BM was observed. The expanded BM showed a distinct repopulating advantage when tested in serial competitive transplantation experiments. Furthermore, major changes within the HSPC niche associated with previously described HSPC expansion strategies were not detected in bones treated with a CXCR4 antagonist infusion. Our data suggest that prolonged but reversible pharmacologic blockade of the CXCR4/CXCL12 axis represents an approach that releases HSPC with efficiency superior to any other known mobilization strategy and may also serve as an effective method to expand the BM HSPC pool.
Collapse
|
38
|
Smith JT, Schneider AD, Katchko KM, Yun C, Hsu EL. Environmental Factors Impacting Bone-Relevant Chemokines. Front Endocrinol (Lausanne) 2017; 8:22. [PMID: 28261155 PMCID: PMC5306137 DOI: 10.3389/fendo.2017.00022] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/01/2016] [Accepted: 01/25/2017] [Indexed: 01/07/2023] Open
Abstract
Chemokines play an important role in normal bone physiology and the pathophysiology of many bone diseases. The recent increased focus on the individual roles of this class of proteins in the context of bone has shown that members of the two major chemokine subfamilies-CC and CXC-support or promote the formation of new bone and the remodeling of existing bone in response to a myriad of stimuli. These chemotactic molecules are crucial in orchestrating appropriate cellular homing, osteoblastogenesis, and osteoclastogenesis during normal bone repair. Bone healing is a complex cascade of carefully regulated processes, including inflammation, progenitor cell recruitment, differentiation, and remodeling. The extensive role of chemokines in these processes and the known links between environmental contaminants and chemokine expression/activity leaves ample opportunity for disruption of bone healing by environmental factors. However, despite increased clinical awareness, the potential impact of many of these environmental factors on bone-related chemokines is still ill defined. A great deal of focus has been placed on environmental exposure to various endocrine disruptors (bisphenol A, phthalate esters, etc.), volatile organic compounds, dioxins, and heavy metals, though mainly in other tissues. Awareness of the impact of other less well-studied bone toxicants, such as fluoride, mold and fungal toxins, asbestos, and chlorine, is also reviewed. In many cases, the literature on these toxins in osteogenic models is lacking. However, research focused on their effects in other tissues and cell lines provides clues for where future resources could be best utilized. This review aims to serve as a current and exhaustive resource detailing the known links between several classes of high-interest environmental pollutants and their interaction with the chemokines relevant to bone healing.
Collapse
Affiliation(s)
- Justin T. Smith
- Department of Orthopaedic Surgery, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, IL, USA
| | - Andrew D. Schneider
- Department of Orthopaedic Surgery, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, IL, USA
| | - Karina M. Katchko
- Department of Orthopaedic Surgery, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, IL, USA
| | - Chawon Yun
- Department of Orthopaedic Surgery, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, IL, USA
| | - Erin L. Hsu
- Department of Orthopaedic Surgery, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, IL, USA
- *Correspondence: Erin L. Hsu,
| |
Collapse
|
39
|
Weng L, Hu X, Kumar B, Garcia M, Todorov I, Jung X, Marcucci G, Forman SJ, Chen CC. Identification of a CD133-CD55- population functions as a fetal common skeletal progenitor. Sci Rep 2016; 6:38632. [PMID: 27929130 PMCID: PMC5144148 DOI: 10.1038/srep38632] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2016] [Accepted: 11/10/2016] [Indexed: 01/19/2023] Open
Abstract
In this study, we identified a CD105+CD90.1−CD133−CD55− (CD133−CD55−) population in the fetal skeletal element that can generate bone and bone marrow. Besides osteoblasts and chondrocytes, the CD133−CD55− common progenitors can give rise to marrow reticular stromal cells and perivascular mesenchymal progenitors suggesting they function as the fetal common skeletal progenitor. Suppression of CXCL12 and Kitl expression in CD133−CD55− common progenitors severely disrupted the BM niche formation but not bone generation. Thus, CD133−CD55− common progenitors are the main source of CXCL12 and Kitl producing cells in the developing marrow.
Collapse
Affiliation(s)
- Lihong Weng
- Divison of Hematopoietic Stem Cell and Leukemia Research, Gehr Family Center for Leukemia Research, Beckman Research Institute of City of Hope, Duarte, CA 91010, USA.,Department of Hematology and Hematopoietic Cell Transplantation, City of Hope, Duarte, CA 91010, USA.,Departments of Cancer Immunotherapeutic and Immunology, Beckman Research Institute of City of Hope, Duarte, CA 91010, USA
| | - Xingbin Hu
- Divison of Hematopoietic Stem Cell and Leukemia Research, Gehr Family Center for Leukemia Research, Beckman Research Institute of City of Hope, Duarte, CA 91010, USA.,Department of Transfusion Medicine, Xijing Hospital, Fourth Military Medical University, Xi'an 7100032, P.R. China
| | - Bijender Kumar
- Divison of Hematopoietic Stem Cell and Leukemia Research, Gehr Family Center for Leukemia Research, Beckman Research Institute of City of Hope, Duarte, CA 91010, USA.,Department of Hematology and Hematopoietic Cell Transplantation, City of Hope, Duarte, CA 91010, USA
| | - Mayra Garcia
- Divison of Hematopoietic Stem Cell and Leukemia Research, Gehr Family Center for Leukemia Research, Beckman Research Institute of City of Hope, Duarte, CA 91010, USA.,Department of Hematology and Hematopoietic Cell Transplantation, City of Hope, Duarte, CA 91010, USA
| | - Ivan Todorov
- Department of Diabetes and Metabolic Diseases Research, Beckman Research Institute of City of Hope, Duarte, CA 91010, USA
| | - Xiaoman Jung
- Divison of Hematopoietic Stem Cell and Leukemia Research, Gehr Family Center for Leukemia Research, Beckman Research Institute of City of Hope, Duarte, CA 91010, USA
| | - Guido Marcucci
- Divison of Hematopoietic Stem Cell and Leukemia Research, Gehr Family Center for Leukemia Research, Beckman Research Institute of City of Hope, Duarte, CA 91010, USA.,Department of Hematology and Hematopoietic Cell Transplantation, City of Hope, Duarte, CA 91010, USA
| | - Stephen J Forman
- Department of Hematology and Hematopoietic Cell Transplantation, City of Hope, Duarte, CA 91010, USA.,Departments of Cancer Immunotherapeutic and Immunology, Beckman Research Institute of City of Hope, Duarte, CA 91010, USA.,Irell &Manella Graduate School of Biological Sciences, City of Hope, Duarte, CA 91010, USA
| | - Ching-Cheng Chen
- Divison of Hematopoietic Stem Cell and Leukemia Research, Gehr Family Center for Leukemia Research, Beckman Research Institute of City of Hope, Duarte, CA 91010, USA.,Department of Hematology and Hematopoietic Cell Transplantation, City of Hope, Duarte, CA 91010, USA.,Irell &Manella Graduate School of Biological Sciences, City of Hope, Duarte, CA 91010, USA
| |
Collapse
|
40
|
Luo T, Liu H, Feng W, Liu D, Du J, Sun J, Wang W, Han X, Guo J, Amizuka N, Li X, Li M. Adipocytes enhance expression of osteoclast adhesion-related molecules through the CXCL12/CXCR4 signalling pathway. Cell Prolif 2016; 50. [PMID: 27868262 DOI: 10.1111/cpr.12317] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2016] [Accepted: 10/18/2016] [Indexed: 12/19/2022] Open
Abstract
OBJECTIVES The purpose of this study was to investigate effects of adipocytes on osteoclast adhesion-related molecules. MATERIALS AND METHODS ST2 cells, a cloned stromal cell line from mouse bone marrow, able to differentiate into adipocytes, were cultured in serum-free α-MEM which was then collected to be used as adipocyte-conditioned medium (ADIPO CM). RAW264.7 cells were cultured in ADIPO CM in the presence of RANKL, and bone marrow-derived macrophages were cultured in ADIPO CM in the presence of RANKL and macrophage-colony stimulating factor to induce osteoclast differentiation. TRAP staining, resorption pit assay, qRT-PCR and western blotting assays were performed. RESULTS ELISAs revealed that CXCL12 was abundant in ADIPO CM and CCK-8 assay revealed no proliferation of RAW264.7 cells after exogenous CXCL12 treatment. ADIPO CM enhanced osteoclast formation and resorption, both by RAW264.7 cells and BMMs. In addition, exogenous CXCL12 efficiently potentiated formation of TRAP-positive osteoclast and resorption by RAW264.7 cells. Western blotting and qRT-PCR suggested that ADIPO CM or combined treatment with exogenous CXCL12 caused significant increase in expression of NFAT2, src and osteoclast adhesion-related molecules, including β3 integrin, CD44 and osteopontin. However, these promotional effects were largely abrogated on treatment of AMD3100, a CXCR4 antagonist. CONCLUSIONS Adipocytes promoted osteoclast differentiation, function and expression of adhesion-related molecules through the CXCL12/CXCR4 signalling pathway.
Collapse
Affiliation(s)
- Tingting Luo
- School of Stomatology, Shanxi Medical University, Taiyuan, China.,Shandong Provincial Key Laboratory of Oral Tissue Regeneration, Department of Bone Metabolism, School of Stomatology Shandong University, Jinan, China
| | - Hongrui Liu
- Shandong Provincial Key Laboratory of Oral Tissue Regeneration, Department of Bone Metabolism, School of Stomatology Shandong University, Jinan, China
| | - Wei Feng
- Shandong Provincial Key Laboratory of Oral Tissue Regeneration, Department of Bone Metabolism, School of Stomatology Shandong University, Jinan, China
| | - Di Liu
- Shandong Provincial Key Laboratory of Oral Tissue Regeneration, Department of Bone Metabolism, School of Stomatology Shandong University, Jinan, China
| | - Juan Du
- Shandong Provincial Key Laboratory of Oral Tissue Regeneration, Department of Bone Metabolism, School of Stomatology Shandong University, Jinan, China
| | - Jing Sun
- Shandong Provincial Key Laboratory of Oral Tissue Regeneration, Department of Bone Metabolism, School of Stomatology Shandong University, Jinan, China
| | - Wei Wang
- Shandong Provincial Key Laboratory of Oral Tissue Regeneration, Department of Bone Metabolism, School of Stomatology Shandong University, Jinan, China
| | - Xiuchun Han
- Shandong Provincial Key Laboratory of Oral Tissue Regeneration, Department of Bone Metabolism, School of Stomatology Shandong University, Jinan, China
| | - Jie Guo
- Shandong Provincial Key Laboratory of Oral Tissue Regeneration, Department of Bone Metabolism, School of Stomatology Shandong University, Jinan, China
| | - Norio Amizuka
- Department of Developmental Biology of Hard Tissue, Graduate School of Dental Medicine, Hokkaido University, Sapporo, Japan
| | - Xianqi Li
- School of Stomatology, Shanxi Medical University, Taiyuan, China.,Department of Hard Tissue Research, Graduate School of Oral Medicine, Matsumoto Dental University, Shiojiri, Japan
| | - Minqi Li
- Shandong Provincial Key Laboratory of Oral Tissue Regeneration, Department of Bone Metabolism, School of Stomatology Shandong University, Jinan, China
| |
Collapse
|
41
|
Goto Y, Aoyama M, Sekiya T, Kakita H, Waguri-Nagaya Y, Miyazawa K, Asai K, Goto S. CXCR4 + CD45 - Cells are Niche Forming for Osteoclastogenesis via the SDF-1, CXCL7, and CX3CL1 Signaling Pathways in Bone Marrow. Stem Cells 2016; 34:2733-2743. [PMID: 27339271 DOI: 10.1002/stem.2440] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2015] [Revised: 05/19/2016] [Accepted: 05/30/2016] [Indexed: 01/16/2023]
Abstract
Bone homeostasis comprises the balance between bone-forming osteoblasts and bone-resorbing osteoclasts (OCs), with an acceleration of osteoclastic bone resorption leading to osteoporosis. OCs can be generated from bone marrow cells (BMCs) under the tightly regulated local bone environment. However, it remained difficult to identify the critical cells responsible for providing an osteoclastogenesis niche. In this study, we used a fluorescence-activated cell sorting technique to determine the cell populations important for forming an appropriate microenvironment for osteoclastogenesis and to verify the associated interactions between osteoclast precursor cells and non-OCs. We isolated and removed a small cell population specific for osteoclastogenesis (CXCR4+ CD45- ) from mouse BMCs and cultured the remaining cells with receptor activator of nuclear factor-kappa B ligand (RANKL) and macrophage-colony stimulating factor. The resulting cultures showed significantly less large osteoclast formation. Quantitative RT-PCR analysis revealed that these CXCR4+ CD45- cells expressed low levels of RANK and RANKL, but high levels of critical chemokines including stromal cell derived factor 1 (SDF-1), chemokine (C-X-C motif) ligand 7 (CXCL7), and chemokine (C-X3-C motif) ligand 1 (CX3CL1). Furthermore, an SDF-1-specific antibody strongly suppressed OC formation in RAW264.7 cells and antibodies against SDF-1, CXCL7, and CX3CL1 suppressed OC formation in BMCs. These results suggest that isolated CXCR4+ CD45- cells support an appropriate microenvironment for osteoclastogenesis with a direct effect on the cells expressing SDF-1, CXCL7, and CX3CL1 receptors. The regulation of CXCR4+ CD45- cell function might therefore inform therapeutic strategies for diseases involving loss of bone homeostasis. Stem Cells 2016;34:2733-2743.
Collapse
Affiliation(s)
- Yoh Goto
- Department of Orthodontics, School of Dentistry, Aichi-Gakuin University, Nagoya, Japan.,Department of Molecular Neurobiology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Mineyoshi Aoyama
- Department of Molecular Neurobiology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan.,Department of Pathobiology, Nagoya City University Graduate School of Pharmaceutical Sciences, Nagoya, Japan
| | - Takeo Sekiya
- Department of Orthodontics, School of Dentistry, Aichi-Gakuin University, Nagoya, Japan.,Department of Molecular Neurobiology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Hiroki Kakita
- Department of Molecular Neurobiology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan.,Department of Perinatal and Neonatal Medicine, Aichi Medical University, Nagakute, Japan
| | - Yuko Waguri-Nagaya
- Department of Joint Surgery for Rheumatic Diseases, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Ken Miyazawa
- Department of Orthodontics, School of Dentistry, Aichi-Gakuin University, Nagoya, Japan
| | - Kiyofumi Asai
- Department of Molecular Neurobiology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Shigemi Goto
- Department of Orthodontics, School of Dentistry, Aichi-Gakuin University, Nagoya, Japan
| |
Collapse
|
42
|
Blair HC, Kalyvioti E, Papachristou NI, Tourkova IL, Syggelos SA, Deligianni D, Orkoula MG, Kontoyannis CG, Karavia EA, Kypreos KE, Papachristou DJ. Apolipoprotein A-1 regulates osteoblast and lipoblast precursor cells in mice. J Transl Med 2016; 96:763-72. [PMID: 27088511 DOI: 10.1038/labinvest.2016.51] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2015] [Revised: 02/11/2016] [Accepted: 03/18/2016] [Indexed: 01/18/2023] Open
Abstract
Imbalances in lipid metabolism affect bone homeostasis, altering bone mass and quality. A link between bone mass and high-density lipoprotein (HDL) has been proposed. Indeed, it has been recently shown that absence of the HDL receptor scavenger receptor class B type I (SR-B1) causes dense bone mediated by increased adrenocorticotropic hormone (ACTH). In the present study we aimed at further expanding the current knowledge as regards the fascinating bone-HDL connection studying bone turnover in apoA-1-deficient mice. Interestingly, we found that bone mass was greatly reduced in the apoA-1-deficient mice compared with their wild-type counterparts. More specifically, static and dynamic histomorphometry showed that the reduced bone mass in apoA-1(-/-) mice reflect decreased bone formation. Biochemical composition and biomechanical properties of ApoA-1(-/-) femora were significantly impaired. Mesenchymal stem cell (MSC) differentiation from the apoA-1(-/-) mice showed reduced osteoblasts, and increased adipocytes, relative to wild type, in identical differentiation conditions. This suggests a shift in MSC subtypes toward adipocyte precursors, a result that is in line with our finding of increased bone marrow adiposity in apoA-1(-/-) mouse femora. Notably, osteoclast differentiation in vitro and osteoclast surface in vivo were unaffected in the knock-out mice. In whole bone marrow, PPARγ was greatly increased, consistent with increased adipocytes and committed precursors. Further, in the apoA-1(-/-) mice marrow, CXCL12 and ANXA2 levels were significantly decreased, whereas CXCR4 were increased, consistent with reduced signaling in a pathway that supports MSC homing and osteoblast generation. In keeping, in the apoA-1(-/-) animals the osteoblast-related factors Runx2, osterix, and Col1a1 were also decreased. The apoA-1(-/-) phenotype also included augmented CEPBa levels, suggesting complex changes in growth and differentiation that deserve further investigation. We conclude that the apoA-1 deficiency generates changes in the bone cell precursor population that increase adipoblast, and decrease osteoblast production resulting in reduced bone mass and impaired bone quality in mice.
Collapse
Affiliation(s)
- Harry C Blair
- Pittsburgh VA Medical Center, Pittsburgh, PA, USA.,Department of Pathology, University of Pittsburgh, Pittsburgh, PA, USA
| | - Elena Kalyvioti
- Department of Anatomy-Histology-Embryology, Unit of Bone and Soft Tissue Studies, University of Patras School of Medicine, Patras, Greece
| | - Nicholaos I Papachristou
- Department of Anatomy-Histology-Embryology, Unit of Bone and Soft Tissue Studies, University of Patras School of Medicine, Patras, Greece
| | - Irina L Tourkova
- Pittsburgh VA Medical Center, Pittsburgh, PA, USA.,Department of Pathology, University of Pittsburgh, Pittsburgh, PA, USA
| | - Spryros A Syggelos
- Department of Anatomy-Histology-Embryology, Unit of Bone and Soft Tissue Studies, University of Patras School of Medicine, Patras, Greece
| | - Despina Deligianni
- Department of Mechanical Engineering and Aeronautics, University of Patras, Patras, Greece
| | | | - Christos G Kontoyannis
- Department of Pharmacy, University of Patras, Patras, Greece.,Institute of Chemical Engineering Sciences, Foundation for Research and Technology-Hellas (FORTH/ICE-HT), Patras, Greece
| | - Eleni A Karavia
- Department of Pharmacology, University of Patras Medical School, Patras, Greece
| | - Kyriakos E Kypreos
- Department of Pharmacology, University of Patras Medical School, Patras, Greece
| | - Dionysios J Papachristou
- Department of Pathology, University of Pittsburgh, Pittsburgh, PA, USA.,Department of Anatomy-Histology-Embryology, Unit of Bone and Soft Tissue Studies, University of Patras School of Medicine, Patras, Greece
| |
Collapse
|
43
|
Novack DV, Mbalaviele G. Osteoclasts-Key Players in Skeletal Health and Disease. Microbiol Spectr 2016; 4:10.1128/microbiolspec.MCHD-0011-2015. [PMID: 27337470 PMCID: PMC4920143 DOI: 10.1128/microbiolspec.mchd-0011-2015] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2015] [Indexed: 12/12/2022] Open
Abstract
The differentiation of osteoclasts (OCs) from early myeloid progenitors is a tightly regulated process that is modulated by a variety of mediators present in the bone microenvironment. Once generated, the function of mature OCs depends on cytoskeletal features controlled by an αvβ3-containing complex at the bone-apposed membrane and the secretion of protons and acid-protease cathepsin K. OCs also have important interactions with other cells in the bone microenvironment, including osteoblasts and immune cells. Dysregulation of OC differentiation and/or function can cause bone pathology. In fact, many components of OC differentiation and activation have been targeted therapeutically with great success. However, questions remain about the identity and plasticity of OC precursors and the interplay between essential networks that control OC fate. In this review, we summarize the key principles of OC biology and highlight recently uncovered mechanisms regulating OC development and function in homeostatic and disease states.
Collapse
Affiliation(s)
- Deborah Veis Novack
- Musculoskeletal Research Center, Division of Bone and Mineral Diseases, Department of Medicine
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO 63110
| | - Gabriel Mbalaviele
- Musculoskeletal Research Center, Division of Bone and Mineral Diseases, Department of Medicine
| |
Collapse
|
44
|
Guided bone regeneration is promoted by the molecular events in the membrane compartment. Biomaterials 2016; 84:167-183. [DOI: 10.1016/j.biomaterials.2016.01.034] [Citation(s) in RCA: 91] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2016] [Accepted: 01/18/2016] [Indexed: 11/18/2022]
|
45
|
Xu Y, Chu N, Qiu X, Gober HJ, Li D, Wang L. The interconnected role of chemokines and estrogen in bone metabolism. Biosci Trends 2016; 10:433-444. [DOI: 10.5582/bst.2016.01072] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Yingping Xu
- Obstetrics and Gynecology Hospital of Fudan University
- Shanghai Key Laboratory of Female Reproductive Endocrine-related Diseases
- Laboratory for Reproductive Immunology, Hospital & Institute of Obstetrics and Gynecology, IBS, Shanghai Medical College, Fudan University
- The Academy of Integrative Medicine of Fudan University
| | - Nan Chu
- Obstetrics and Gynecology Hospital of Fudan University
- Shanghai Key Laboratory of Female Reproductive Endocrine-related Diseases
- Laboratory for Reproductive Immunology, Hospital & Institute of Obstetrics and Gynecology, IBS, Shanghai Medical College, Fudan University
| | - Xuemin Qiu
- Obstetrics and Gynecology Hospital of Fudan University
- Shanghai Key Laboratory of Female Reproductive Endocrine-related Diseases
- Laboratory for Reproductive Immunology, Hospital & Institute of Obstetrics and Gynecology, IBS, Shanghai Medical College, Fudan University
- The Academy of Integrative Medicine of Fudan University
| | | | - Dajin Li
- Obstetrics and Gynecology Hospital of Fudan University
- Shanghai Key Laboratory of Female Reproductive Endocrine-related Diseases
- Laboratory for Reproductive Immunology, Hospital & Institute of Obstetrics and Gynecology, IBS, Shanghai Medical College, Fudan University
- The Academy of Integrative Medicine of Fudan University
| | - Ling Wang
- Obstetrics and Gynecology Hospital of Fudan University
- Shanghai Key Laboratory of Female Reproductive Endocrine-related Diseases
- Laboratory for Reproductive Immunology, Hospital & Institute of Obstetrics and Gynecology, IBS, Shanghai Medical College, Fudan University
- The Academy of Integrative Medicine of Fudan University
| |
Collapse
|
46
|
Childress P, Stayrook KR, Alvarez MB, Wang Z, Shao Y, Hernandez-Buquer S, Mack JK, Grese ZR, He Y, Horan D, Pavalko FM, Warden SJ, Robling AG, Yang FC, Allen MR, Krishnan V, Liu Y, Bidwell JP. Genome-Wide Mapping and Interrogation of the Nmp4 Antianabolic Bone Axis. Mol Endocrinol 2015; 29:1269-85. [PMID: 26244796 DOI: 10.1210/me.2014-1406] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
PTH is an osteoanabolic for treating osteoporosis but its potency wanes. Disabling the transcription factor nuclear matrix protein 4 (Nmp4) in healthy, ovary-intact mice enhances bone response to PTH and bone morphogenetic protein 2 and protects from unloading-induced osteopenia. These Nmp4(-/-) mice exhibit expanded bone marrow populations of osteoprogenitors and supporting CD8(+) T cells. To determine whether the Nmp4(-/-) phenotype persists in an osteoporosis model we compared PTH response in ovariectomized (ovx) wild-type (WT) and Nmp4(-/-) mice. To identify potential Nmp4 target genes, we performed bioinformatic/pathway profiling on Nmp4 chromatin immunoprecipitation sequencing (ChIP-seq) data. Mice (12 w) were ovx or sham operated 4 weeks before the initiation of PTH therapy. Skeletal phenotype analysis included microcomputed tomography, histomorphometry, serum profiles, fluorescence-activated cell sorting and the growth/mineralization of cultured WT and Nmp4(-/-) bone marrow mesenchymal stem progenitor cells (MSPCs). ChIP-seq data were derived using MC3T3-E1 preosteoblasts, murine embryonic stem cells, and 2 blood cell lines. Ovx Nmp4(-/-) mice exhibited an improved response to PTH coupled with elevated numbers of osteoprogenitors and CD8(+) T cells, but were not protected from ovx-induced bone loss. Cultured Nmp4(-/-) MSPCs displayed enhanced proliferation and accelerated mineralization. ChIP-seq/gene ontology analyses identified target genes likely under Nmp4 control as enriched for negative regulators of biosynthetic processes. Interrogation of mRNA transcripts in nondifferentiating and osteogenic differentiating WT and Nmp4(-/-) MSPCs was performed on 90 Nmp4 target genes and differentiation markers. These data suggest that Nmp4 suppresses bone anabolism, in part, by regulating IGF-binding protein expression. Changes in Nmp4 status may lead to improvements in osteoprogenitor response to therapeutic cues.
Collapse
Affiliation(s)
- Paul Childress
- Department of Anatomy and Cell Biology (P.C., S.H.-B., D.H., A.G.R., M.R.A., J.P.B.), Indiana University School of Medicine, Indianapolis, Indiana 46202; Lilly Research Laboratories (K.R.S., J.K.M., Z.R.G., V.K.), Eli Lilly and Company, Indianapolis, Indiana 46202; Orthopaedic Surgery (M.B.A.), Indiana University School of Medicine; Department of Medical and Molecular Genetics (Z.W., Y.S., Y.L., J.P.B.), Indiana University School of Medicine; Center for Computational Biology and Bioinformatics (Z.W., Y.L.), Indiana University School of Medicine; Department of Pediatrics (Y.H., F.-C.Y.), Indiana University School of Medicine; Herman B Wells Center for Pediatric Research (Y.H., F.-C.Y.); Cellular and Integrative Physiology (F.M.P.); Center for Translational Musculoskeletal Research (S.J.W.), School of Health and Rehabilitation Sciences, Indiana University; and Department of Physical Therapy (S.J.W.), School of Health and Rehabilitation Sciences, Indiana University, Indianapolis, Indiana 46202
| | - Keith R Stayrook
- Department of Anatomy and Cell Biology (P.C., S.H.-B., D.H., A.G.R., M.R.A., J.P.B.), Indiana University School of Medicine, Indianapolis, Indiana 46202; Lilly Research Laboratories (K.R.S., J.K.M., Z.R.G., V.K.), Eli Lilly and Company, Indianapolis, Indiana 46202; Orthopaedic Surgery (M.B.A.), Indiana University School of Medicine; Department of Medical and Molecular Genetics (Z.W., Y.S., Y.L., J.P.B.), Indiana University School of Medicine; Center for Computational Biology and Bioinformatics (Z.W., Y.L.), Indiana University School of Medicine; Department of Pediatrics (Y.H., F.-C.Y.), Indiana University School of Medicine; Herman B Wells Center for Pediatric Research (Y.H., F.-C.Y.); Cellular and Integrative Physiology (F.M.P.); Center for Translational Musculoskeletal Research (S.J.W.), School of Health and Rehabilitation Sciences, Indiana University; and Department of Physical Therapy (S.J.W.), School of Health and Rehabilitation Sciences, Indiana University, Indianapolis, Indiana 46202
| | - Marta B Alvarez
- Department of Anatomy and Cell Biology (P.C., S.H.-B., D.H., A.G.R., M.R.A., J.P.B.), Indiana University School of Medicine, Indianapolis, Indiana 46202; Lilly Research Laboratories (K.R.S., J.K.M., Z.R.G., V.K.), Eli Lilly and Company, Indianapolis, Indiana 46202; Orthopaedic Surgery (M.B.A.), Indiana University School of Medicine; Department of Medical and Molecular Genetics (Z.W., Y.S., Y.L., J.P.B.), Indiana University School of Medicine; Center for Computational Biology and Bioinformatics (Z.W., Y.L.), Indiana University School of Medicine; Department of Pediatrics (Y.H., F.-C.Y.), Indiana University School of Medicine; Herman B Wells Center for Pediatric Research (Y.H., F.-C.Y.); Cellular and Integrative Physiology (F.M.P.); Center for Translational Musculoskeletal Research (S.J.W.), School of Health and Rehabilitation Sciences, Indiana University; and Department of Physical Therapy (S.J.W.), School of Health and Rehabilitation Sciences, Indiana University, Indianapolis, Indiana 46202
| | - Zhiping Wang
- Department of Anatomy and Cell Biology (P.C., S.H.-B., D.H., A.G.R., M.R.A., J.P.B.), Indiana University School of Medicine, Indianapolis, Indiana 46202; Lilly Research Laboratories (K.R.S., J.K.M., Z.R.G., V.K.), Eli Lilly and Company, Indianapolis, Indiana 46202; Orthopaedic Surgery (M.B.A.), Indiana University School of Medicine; Department of Medical and Molecular Genetics (Z.W., Y.S., Y.L., J.P.B.), Indiana University School of Medicine; Center for Computational Biology and Bioinformatics (Z.W., Y.L.), Indiana University School of Medicine; Department of Pediatrics (Y.H., F.-C.Y.), Indiana University School of Medicine; Herman B Wells Center for Pediatric Research (Y.H., F.-C.Y.); Cellular and Integrative Physiology (F.M.P.); Center for Translational Musculoskeletal Research (S.J.W.), School of Health and Rehabilitation Sciences, Indiana University; and Department of Physical Therapy (S.J.W.), School of Health and Rehabilitation Sciences, Indiana University, Indianapolis, Indiana 46202
| | - Yu Shao
- Department of Anatomy and Cell Biology (P.C., S.H.-B., D.H., A.G.R., M.R.A., J.P.B.), Indiana University School of Medicine, Indianapolis, Indiana 46202; Lilly Research Laboratories (K.R.S., J.K.M., Z.R.G., V.K.), Eli Lilly and Company, Indianapolis, Indiana 46202; Orthopaedic Surgery (M.B.A.), Indiana University School of Medicine; Department of Medical and Molecular Genetics (Z.W., Y.S., Y.L., J.P.B.), Indiana University School of Medicine; Center for Computational Biology and Bioinformatics (Z.W., Y.L.), Indiana University School of Medicine; Department of Pediatrics (Y.H., F.-C.Y.), Indiana University School of Medicine; Herman B Wells Center for Pediatric Research (Y.H., F.-C.Y.); Cellular and Integrative Physiology (F.M.P.); Center for Translational Musculoskeletal Research (S.J.W.), School of Health and Rehabilitation Sciences, Indiana University; and Department of Physical Therapy (S.J.W.), School of Health and Rehabilitation Sciences, Indiana University, Indianapolis, Indiana 46202
| | - Selene Hernandez-Buquer
- Department of Anatomy and Cell Biology (P.C., S.H.-B., D.H., A.G.R., M.R.A., J.P.B.), Indiana University School of Medicine, Indianapolis, Indiana 46202; Lilly Research Laboratories (K.R.S., J.K.M., Z.R.G., V.K.), Eli Lilly and Company, Indianapolis, Indiana 46202; Orthopaedic Surgery (M.B.A.), Indiana University School of Medicine; Department of Medical and Molecular Genetics (Z.W., Y.S., Y.L., J.P.B.), Indiana University School of Medicine; Center for Computational Biology and Bioinformatics (Z.W., Y.L.), Indiana University School of Medicine; Department of Pediatrics (Y.H., F.-C.Y.), Indiana University School of Medicine; Herman B Wells Center for Pediatric Research (Y.H., F.-C.Y.); Cellular and Integrative Physiology (F.M.P.); Center for Translational Musculoskeletal Research (S.J.W.), School of Health and Rehabilitation Sciences, Indiana University; and Department of Physical Therapy (S.J.W.), School of Health and Rehabilitation Sciences, Indiana University, Indianapolis, Indiana 46202
| | - Justin K Mack
- Department of Anatomy and Cell Biology (P.C., S.H.-B., D.H., A.G.R., M.R.A., J.P.B.), Indiana University School of Medicine, Indianapolis, Indiana 46202; Lilly Research Laboratories (K.R.S., J.K.M., Z.R.G., V.K.), Eli Lilly and Company, Indianapolis, Indiana 46202; Orthopaedic Surgery (M.B.A.), Indiana University School of Medicine; Department of Medical and Molecular Genetics (Z.W., Y.S., Y.L., J.P.B.), Indiana University School of Medicine; Center for Computational Biology and Bioinformatics (Z.W., Y.L.), Indiana University School of Medicine; Department of Pediatrics (Y.H., F.-C.Y.), Indiana University School of Medicine; Herman B Wells Center for Pediatric Research (Y.H., F.-C.Y.); Cellular and Integrative Physiology (F.M.P.); Center for Translational Musculoskeletal Research (S.J.W.), School of Health and Rehabilitation Sciences, Indiana University; and Department of Physical Therapy (S.J.W.), School of Health and Rehabilitation Sciences, Indiana University, Indianapolis, Indiana 46202
| | - Zachary R Grese
- Department of Anatomy and Cell Biology (P.C., S.H.-B., D.H., A.G.R., M.R.A., J.P.B.), Indiana University School of Medicine, Indianapolis, Indiana 46202; Lilly Research Laboratories (K.R.S., J.K.M., Z.R.G., V.K.), Eli Lilly and Company, Indianapolis, Indiana 46202; Orthopaedic Surgery (M.B.A.), Indiana University School of Medicine; Department of Medical and Molecular Genetics (Z.W., Y.S., Y.L., J.P.B.), Indiana University School of Medicine; Center for Computational Biology and Bioinformatics (Z.W., Y.L.), Indiana University School of Medicine; Department of Pediatrics (Y.H., F.-C.Y.), Indiana University School of Medicine; Herman B Wells Center for Pediatric Research (Y.H., F.-C.Y.); Cellular and Integrative Physiology (F.M.P.); Center for Translational Musculoskeletal Research (S.J.W.), School of Health and Rehabilitation Sciences, Indiana University; and Department of Physical Therapy (S.J.W.), School of Health and Rehabilitation Sciences, Indiana University, Indianapolis, Indiana 46202
| | - Yongzheng He
- Department of Anatomy and Cell Biology (P.C., S.H.-B., D.H., A.G.R., M.R.A., J.P.B.), Indiana University School of Medicine, Indianapolis, Indiana 46202; Lilly Research Laboratories (K.R.S., J.K.M., Z.R.G., V.K.), Eli Lilly and Company, Indianapolis, Indiana 46202; Orthopaedic Surgery (M.B.A.), Indiana University School of Medicine; Department of Medical and Molecular Genetics (Z.W., Y.S., Y.L., J.P.B.), Indiana University School of Medicine; Center for Computational Biology and Bioinformatics (Z.W., Y.L.), Indiana University School of Medicine; Department of Pediatrics (Y.H., F.-C.Y.), Indiana University School of Medicine; Herman B Wells Center for Pediatric Research (Y.H., F.-C.Y.); Cellular and Integrative Physiology (F.M.P.); Center for Translational Musculoskeletal Research (S.J.W.), School of Health and Rehabilitation Sciences, Indiana University; and Department of Physical Therapy (S.J.W.), School of Health and Rehabilitation Sciences, Indiana University, Indianapolis, Indiana 46202
| | - Daniel Horan
- Department of Anatomy and Cell Biology (P.C., S.H.-B., D.H., A.G.R., M.R.A., J.P.B.), Indiana University School of Medicine, Indianapolis, Indiana 46202; Lilly Research Laboratories (K.R.S., J.K.M., Z.R.G., V.K.), Eli Lilly and Company, Indianapolis, Indiana 46202; Orthopaedic Surgery (M.B.A.), Indiana University School of Medicine; Department of Medical and Molecular Genetics (Z.W., Y.S., Y.L., J.P.B.), Indiana University School of Medicine; Center for Computational Biology and Bioinformatics (Z.W., Y.L.), Indiana University School of Medicine; Department of Pediatrics (Y.H., F.-C.Y.), Indiana University School of Medicine; Herman B Wells Center for Pediatric Research (Y.H., F.-C.Y.); Cellular and Integrative Physiology (F.M.P.); Center for Translational Musculoskeletal Research (S.J.W.), School of Health and Rehabilitation Sciences, Indiana University; and Department of Physical Therapy (S.J.W.), School of Health and Rehabilitation Sciences, Indiana University, Indianapolis, Indiana 46202
| | - Fredrick M Pavalko
- Department of Anatomy and Cell Biology (P.C., S.H.-B., D.H., A.G.R., M.R.A., J.P.B.), Indiana University School of Medicine, Indianapolis, Indiana 46202; Lilly Research Laboratories (K.R.S., J.K.M., Z.R.G., V.K.), Eli Lilly and Company, Indianapolis, Indiana 46202; Orthopaedic Surgery (M.B.A.), Indiana University School of Medicine; Department of Medical and Molecular Genetics (Z.W., Y.S., Y.L., J.P.B.), Indiana University School of Medicine; Center for Computational Biology and Bioinformatics (Z.W., Y.L.), Indiana University School of Medicine; Department of Pediatrics (Y.H., F.-C.Y.), Indiana University School of Medicine; Herman B Wells Center for Pediatric Research (Y.H., F.-C.Y.); Cellular and Integrative Physiology (F.M.P.); Center for Translational Musculoskeletal Research (S.J.W.), School of Health and Rehabilitation Sciences, Indiana University; and Department of Physical Therapy (S.J.W.), School of Health and Rehabilitation Sciences, Indiana University, Indianapolis, Indiana 46202
| | - Stuart J Warden
- Department of Anatomy and Cell Biology (P.C., S.H.-B., D.H., A.G.R., M.R.A., J.P.B.), Indiana University School of Medicine, Indianapolis, Indiana 46202; Lilly Research Laboratories (K.R.S., J.K.M., Z.R.G., V.K.), Eli Lilly and Company, Indianapolis, Indiana 46202; Orthopaedic Surgery (M.B.A.), Indiana University School of Medicine; Department of Medical and Molecular Genetics (Z.W., Y.S., Y.L., J.P.B.), Indiana University School of Medicine; Center for Computational Biology and Bioinformatics (Z.W., Y.L.), Indiana University School of Medicine; Department of Pediatrics (Y.H., F.-C.Y.), Indiana University School of Medicine; Herman B Wells Center for Pediatric Research (Y.H., F.-C.Y.); Cellular and Integrative Physiology (F.M.P.); Center for Translational Musculoskeletal Research (S.J.W.), School of Health and Rehabilitation Sciences, Indiana University; and Department of Physical Therapy (S.J.W.), School of Health and Rehabilitation Sciences, Indiana University, Indianapolis, Indiana 46202
| | - Alexander G Robling
- Department of Anatomy and Cell Biology (P.C., S.H.-B., D.H., A.G.R., M.R.A., J.P.B.), Indiana University School of Medicine, Indianapolis, Indiana 46202; Lilly Research Laboratories (K.R.S., J.K.M., Z.R.G., V.K.), Eli Lilly and Company, Indianapolis, Indiana 46202; Orthopaedic Surgery (M.B.A.), Indiana University School of Medicine; Department of Medical and Molecular Genetics (Z.W., Y.S., Y.L., J.P.B.), Indiana University School of Medicine; Center for Computational Biology and Bioinformatics (Z.W., Y.L.), Indiana University School of Medicine; Department of Pediatrics (Y.H., F.-C.Y.), Indiana University School of Medicine; Herman B Wells Center for Pediatric Research (Y.H., F.-C.Y.); Cellular and Integrative Physiology (F.M.P.); Center for Translational Musculoskeletal Research (S.J.W.), School of Health and Rehabilitation Sciences, Indiana University; and Department of Physical Therapy (S.J.W.), School of Health and Rehabilitation Sciences, Indiana University, Indianapolis, Indiana 46202
| | - Feng-Chun Yang
- Department of Anatomy and Cell Biology (P.C., S.H.-B., D.H., A.G.R., M.R.A., J.P.B.), Indiana University School of Medicine, Indianapolis, Indiana 46202; Lilly Research Laboratories (K.R.S., J.K.M., Z.R.G., V.K.), Eli Lilly and Company, Indianapolis, Indiana 46202; Orthopaedic Surgery (M.B.A.), Indiana University School of Medicine; Department of Medical and Molecular Genetics (Z.W., Y.S., Y.L., J.P.B.), Indiana University School of Medicine; Center for Computational Biology and Bioinformatics (Z.W., Y.L.), Indiana University School of Medicine; Department of Pediatrics (Y.H., F.-C.Y.), Indiana University School of Medicine; Herman B Wells Center for Pediatric Research (Y.H., F.-C.Y.); Cellular and Integrative Physiology (F.M.P.); Center for Translational Musculoskeletal Research (S.J.W.), School of Health and Rehabilitation Sciences, Indiana University; and Department of Physical Therapy (S.J.W.), School of Health and Rehabilitation Sciences, Indiana University, Indianapolis, Indiana 46202
| | - Matthew R Allen
- Department of Anatomy and Cell Biology (P.C., S.H.-B., D.H., A.G.R., M.R.A., J.P.B.), Indiana University School of Medicine, Indianapolis, Indiana 46202; Lilly Research Laboratories (K.R.S., J.K.M., Z.R.G., V.K.), Eli Lilly and Company, Indianapolis, Indiana 46202; Orthopaedic Surgery (M.B.A.), Indiana University School of Medicine; Department of Medical and Molecular Genetics (Z.W., Y.S., Y.L., J.P.B.), Indiana University School of Medicine; Center for Computational Biology and Bioinformatics (Z.W., Y.L.), Indiana University School of Medicine; Department of Pediatrics (Y.H., F.-C.Y.), Indiana University School of Medicine; Herman B Wells Center for Pediatric Research (Y.H., F.-C.Y.); Cellular and Integrative Physiology (F.M.P.); Center for Translational Musculoskeletal Research (S.J.W.), School of Health and Rehabilitation Sciences, Indiana University; and Department of Physical Therapy (S.J.W.), School of Health and Rehabilitation Sciences, Indiana University, Indianapolis, Indiana 46202
| | - Venkatesh Krishnan
- Department of Anatomy and Cell Biology (P.C., S.H.-B., D.H., A.G.R., M.R.A., J.P.B.), Indiana University School of Medicine, Indianapolis, Indiana 46202; Lilly Research Laboratories (K.R.S., J.K.M., Z.R.G., V.K.), Eli Lilly and Company, Indianapolis, Indiana 46202; Orthopaedic Surgery (M.B.A.), Indiana University School of Medicine; Department of Medical and Molecular Genetics (Z.W., Y.S., Y.L., J.P.B.), Indiana University School of Medicine; Center for Computational Biology and Bioinformatics (Z.W., Y.L.), Indiana University School of Medicine; Department of Pediatrics (Y.H., F.-C.Y.), Indiana University School of Medicine; Herman B Wells Center for Pediatric Research (Y.H., F.-C.Y.); Cellular and Integrative Physiology (F.M.P.); Center for Translational Musculoskeletal Research (S.J.W.), School of Health and Rehabilitation Sciences, Indiana University; and Department of Physical Therapy (S.J.W.), School of Health and Rehabilitation Sciences, Indiana University, Indianapolis, Indiana 46202
| | - Yunlong Liu
- Department of Anatomy and Cell Biology (P.C., S.H.-B., D.H., A.G.R., M.R.A., J.P.B.), Indiana University School of Medicine, Indianapolis, Indiana 46202; Lilly Research Laboratories (K.R.S., J.K.M., Z.R.G., V.K.), Eli Lilly and Company, Indianapolis, Indiana 46202; Orthopaedic Surgery (M.B.A.), Indiana University School of Medicine; Department of Medical and Molecular Genetics (Z.W., Y.S., Y.L., J.P.B.), Indiana University School of Medicine; Center for Computational Biology and Bioinformatics (Z.W., Y.L.), Indiana University School of Medicine; Department of Pediatrics (Y.H., F.-C.Y.), Indiana University School of Medicine; Herman B Wells Center for Pediatric Research (Y.H., F.-C.Y.); Cellular and Integrative Physiology (F.M.P.); Center for Translational Musculoskeletal Research (S.J.W.), School of Health and Rehabilitation Sciences, Indiana University; and Department of Physical Therapy (S.J.W.), School of Health and Rehabilitation Sciences, Indiana University, Indianapolis, Indiana 46202
| | - Joseph P Bidwell
- Department of Anatomy and Cell Biology (P.C., S.H.-B., D.H., A.G.R., M.R.A., J.P.B.), Indiana University School of Medicine, Indianapolis, Indiana 46202; Lilly Research Laboratories (K.R.S., J.K.M., Z.R.G., V.K.), Eli Lilly and Company, Indianapolis, Indiana 46202; Orthopaedic Surgery (M.B.A.), Indiana University School of Medicine; Department of Medical and Molecular Genetics (Z.W., Y.S., Y.L., J.P.B.), Indiana University School of Medicine; Center for Computational Biology and Bioinformatics (Z.W., Y.L.), Indiana University School of Medicine; Department of Pediatrics (Y.H., F.-C.Y.), Indiana University School of Medicine; Herman B Wells Center for Pediatric Research (Y.H., F.-C.Y.); Cellular and Integrative Physiology (F.M.P.); Center for Translational Musculoskeletal Research (S.J.W.), School of Health and Rehabilitation Sciences, Indiana University; and Department of Physical Therapy (S.J.W.), School of Health and Rehabilitation Sciences, Indiana University, Indianapolis, Indiana 46202
| |
Collapse
|
47
|
|
48
|
Agas D, Marchetti L, Douni E, Sabbieti MG. The unbearable lightness of bone marrow homeostasis. Cytokine Growth Factor Rev 2015; 26:347-59. [DOI: 10.1016/j.cytogfr.2014.12.004] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2014] [Revised: 11/22/2014] [Accepted: 12/17/2014] [Indexed: 01/10/2023]
|
49
|
CXCL13 promotes the effect of bone marrow mesenchymal stem cells (MSCs) on tendon-bone healing in rats and in C3HIOT1/2 cells. Int J Mol Sci 2015; 16:3178-87. [PMID: 25647417 PMCID: PMC4346887 DOI: 10.3390/ijms16023178] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2014] [Revised: 01/14/2015] [Accepted: 01/21/2015] [Indexed: 01/08/2023] Open
Abstract
Objectives: Mesenchymal stem cells (MSCs) are potential effective therapy for tissue repair and bone regeneration. In present study, the effects of CXC chemokine ligand-13 (CXCL13) were evaluated on tendon-bone healing of rats. Methods: Tendon bone healing of the rat model was established and biomechanical testing was performed at 2, 4, 8 weeks after surgery. Murine mesenchymal cell line (C3HIOT1/2 cells) was cultured. The expression of miRNA-23a was detected by real-time PCR. The protein expression of ERK1/2, JNK and p38 was detected by western blotting. MiR-23a mimic and inhibitor were used to overexpress or silence the expression of miR-23a. Results: MSCs significantly elevated the levels of ultimate load to failure, stiffness and stress in specimens of rats, the effects of which were enhanced by CXCL13. The expression of miR-23a was down-regulated and the protein of ERK1/2 level was up-regulated by CXCL13 treatment in both in vivo and in vitro experiments. ERK1/2 expression was elevated by overexpression of miR-23a and reduced by miR-23a inhibitor. Conclusions: These findings revealed that CXCL13 promoted the tendon-bone healing in rats with MSCs treatment, and implied that the activation of ERK1/2 via miR-23a was involved in the process of MSCs treated bone regeneration.
Collapse
|
50
|
Shi J, Wei Y, Xia J, Wang S, Wu J, Chen F, Huang G, Chen J. CXCL12-CXCR4 contributes to the implication of bone marrow in cancer metastasis. Future Oncol 2014; 10:749-59. [PMID: 24799056 DOI: 10.2217/fon.13.193] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
The CXCL12-CXCR4 axis is postulated to be a key pathway in the interaction between (cancer) stem cells and their surrounding supportive cells in the (cancer) stem cell niche. As the bone marrow constitutes a unique microenvironment for cancer cells, the CXCL12-CXCR4 axis assists the bone marrow in regulating cancer progression. This interaction can be disrupted by CXCR4 antagonists, and this concept is being used clinically to harvest hematopoietic stem/progenitor cells from the bone marrow. The functions of CXCL12-CXCR4 axis in cancer cell-tumor microenvironment interaction and angiogenesis have been recently studied. This review focuses on how CXCL12-CXCR4 helps the bone marrow in creating a tumor mircoenvironment that results in the cancer metastasis. It also discusses ongoing research regarding the clinical feasibility of CXCR4 inhibitors.
Collapse
Affiliation(s)
- Jingsheng Shi
- Department of Orthopedics, Huashan Hospital, Fudan University, Shanghai 200040, China
| | | | | | | | | | | | | | | |
Collapse
|