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Osteoimmunology

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https://www.readbyqxmd.com/read/29781148/improved-osteogenesis-of-boron-incorporated-calcium-silicate-coatings-via-immunomodulatory-effects
#1
Xiang Lu, Kai Li, Youtao Xie, Shengcai Qi, Qingyi Shen, Jiangming Yu, Liping Huang, Xuebin Zheng
Osteoimmunology has revealed the importance of a favorable immune response for successful biomaterial-mediated osteogenesis. Boron-incorporated calcium silicate (Ca11 Si4 B2 O22 , B-CS) coating has been reported as a potential candidate for improving osteogenesis in orthopedic applications in vitro. However, relatively little is known about its effects on the immune response and subsequent osteogenesis. In this work, the immunomodulatory properties of the B-CS coating and its specific mechanism of action were explored...
May 20, 2018: Journal of Biomedical Materials Research. Part A
https://www.readbyqxmd.com/read/29754519/the-role-of-imaging-in-early-diagnosis-and-prevention-of-joint-damage-in-inflammatory-arthritis
#2
Jiang Yue, Dongze Wu, Lai-Shan Tam
Inflammatory arthritis is characterized by chronic inflammation in the synovium, associated with degradation of cartilage and erosion of juxta-articular bone. The bone loss and joint destruction mediated by aberrant immunological responses resulting in proinflammatory cytokine release and various immune cell activation are known as osteoimmunology. Areas covered: A structured literature search including Medline and PubMed, Cochrane meta-analyses and abstracts of international congresses was performed to review joint damage in inflammatory arthritis in terms of pathogenesis, novel imaging assessment and prevention...
May 13, 2018: Expert Review of Clinical Immunology
https://www.readbyqxmd.com/read/29745517/-progress-in-the-regulation-of-bone-remodeling-at-the-cellular-level
#3
REVIEW
Yuanbo Hu, Lesha Wang, Lei Jiang, Huazi Xu, Sipin Zhu
Bone remodeling requires an intimate cross-talk between osteoclasts and osteoblasts and is tightly coordinated with regulatory proteins that interact through complex autocrine/paracrine processes. Osteocytes, bone lining cells, osteomacs and vascular endothelial cells also regulate bone remodeling in the basic multicellular unit (BMU) via cell signaling networks of ligand-receptor complexes. In addition, through secreted and membrane-bound factors in the bone microenvironment, T and B lymphocytes mediate bone homeostasis for osteoimmunology...
June 1, 2017: Sheng Wu Yi Xue Gong Cheng Xue za Zhi, Journal of Biomedical Engineering, Shengwu Yixue Gongchengxue Zazhi
https://www.readbyqxmd.com/read/29731660/the-vitamin-d-receptor-and-the-etiology-of-rantes-ccl-expressive-fatty-degenerative-osteolysis-of-the-jawbone-an-interface-between-osteoimmunology-and-bone-metabolism
#4
Johann Lechner, Jürgen Aschoff, Tatjana Rudi
Background: Recent research on vitamin D indicates that our current understanding of the factors leading to chronic inflammation should be revised. One of the key mechanisms by which microbial immunosuppression occurs is the suppression of one of the most common endogenous cell nucleus receptors: the vitamin D receptor (VDR). Autoimmune diseases may be correlated with VDR deactivation (VDR-deac) which occurs when the receptor is no longer able to transcribe antimicrobial agents. Excess 1,25-dihydroxyvitamin D (1,25D) is not converted to 25-hydroxyvitamin D (25D); thus, high 1,25D levels may be accompanied by low 25D values...
2018: International Journal of General Medicine
https://www.readbyqxmd.com/read/29691689/-osteoimmunology-immunobone-regulation-of-bone-by-inflammation
#5
REVIEW
M Rauner, F Buttgereit, J Distler, A I Garbe, M Herrmann, L Hofbauer, M Hoffmann, R Jessberger, U Kornak, G Krönke, S Mundlos, C Spies, J Tuckermann, J Zwerina
No abstract text is available yet for this article.
May 2018: Zeitschrift Für Rheumatologie
https://www.readbyqxmd.com/read/29675436/prevention-and-treatment-of-osteoporosis-using-chinese-medicinal-plants-special-emphasis-on-mechanisms-of-immune-modulation
#6
REVIEW
Hongyan Zhao, Ning Zhao, Peng Zheng, Xiaohong Xu, Meijie Liu, Dan Luo, Huihui Xu, Dahong Ju
Numerous studies have examined the pathogenesis of osteoporosis. The causes of osteoporosis include endocrine factors, nutritional status, genetic factors, physical factors, and immune factors. Recent osteoimmunology studies demonstrated that the immune system and immune factors play important regulatory roles in the occurrence of osteoporosis, and people should pay more attention to the relationship between immunity and osteoporosis. Immune and bone cells are located in the bone marrow and share numerous regulatory molecules, signaling molecules, and transcription factors...
2018: Journal of Immunology Research
https://www.readbyqxmd.com/read/29675022/immunoporosis-immunology-of-osteoporosis-role-of-t-cells
#7
REVIEW
Rupesh K Srivastava, Hamid Y Dar, Pradyumna K Mishra
The role of immune system in various bone pathologies, such as osteoporosis, osteoarthritis, and rheumatoid arthritis is now well established. This had led to the emergence of a modern field of systems biology called as osteoimmunology, an integrated research between fields of immunology and bone biology under one umbrella. Osteoporosis is one of the most common inflammatory bone loss condition with more than 200 million individuals affected worldwide. T helper (Th) cells along with various other immune cells are major players involved in bone homeostasis...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29666861/lactoferrin-preserves-bone-homeostasis-by-regulating-the-rankl-rank-opg-pathway-of-osteoimmunology
#8
Fengjiao Fan, Pujie Shi, Meng Liu, Hui Chen, Maolin Tu, Weihong Lu, Ming Du
Osteoporosis can be classified as an inflammatory disease and the crosstalk between the immune system and bone growth should be considered. The effects of bovine lactoferrin on bone by osteoimmunology were investigated in the present study. Ten week old female BALB/c mice were ovariectomized (OVX) and fed for 12 weeks with a control diet or lactoferrin (2, 20 and 100 mg kg-1 d-1). The results showed that following 12 weeks of treatment after surgery, OVX resulted in bone loss, but treatment with lactoferrin preserved bone homeostasis...
May 23, 2018: Food & Function
https://www.readbyqxmd.com/read/29659378/osteoimmunology-effects-of-standard-orthopaedic-interventions-on-inflammatory-response-and-early-fracture-healing
#9
Prism S Schneider, Emilie Sandman, Paul A Martineau
Achieving fracture union is highly dependent on the initial inflammatory phase of fracture healing, which is influenced by both the local and systemic inflammatory environments. The rapidly emerging field of osteoimmunology involves the study of the interactions between the immune system and the skeletal system. Recent research has advanced the current state of knowledge regarding the effects of the surrounding soft-tissue injury, fracture hematoma, and the method of fracture fixation on the inflammatory phase of fracture healing...
May 15, 2018: Journal of the American Academy of Orthopaedic Surgeons
https://www.readbyqxmd.com/read/29657156/effects-of-titanium-surface-roughness-on-the-mediation-of-osteogenesis-via-modulating-the-immune-response-of-macrophages
#10
Xuezhong Li, Qianli Huang, Tarek A Elkhooly, Yong Liu, Hong Wu, Qingling Feng, Ling Liu, Yu Fang, Weihong Zhu, Tianrui Hu
Osteoblastic lineage cells are commonly used to evaluate the in vitro osteogenic ability of bone biomaterials. However, contradictory results obtained from in vivo and in vitro studies are not uncommon. With the increasing understanding of osteoimmunology, the immune response has been recognized as playing an important role in bone regeneration. In this study, we examined the effect of submicron-scaled titanium surface roughness (ranging from approximately 100 to 400 nm) on the response of osteoblasts and macrophages...
May 15, 2018: Biomedical Materials
https://www.readbyqxmd.com/read/29642953/impact-of-bone-marrow-mesenchymal-stem-cell-immunomodulation-on-the-osteogenic-effects-of-laponite
#11
Tao Li, Zhong Long Liu, Ming Xiao, Ze Zheng Yang, Ming Zheng Peng, Cui Di Li, Xiao Jun Zhou, Jin Wu Wang
BACKGROUND: With the development of osteoimmunology and bone tissue engineering (BTE), it has been recognized that the immunomodulatory properties of bone biomaterials have considerable impact in determining their fate after implantation. In this regard, the polarization of macrophages secondary to biomaterials is postulated to play a crucial role in modulating their osteogenesis; thus, strategies that may facilitate this process engender increasing levels of attention. Whereas a variety of reports highlight the immunomodulation of bone marrow mesenchymal stem cells (BMSCs) in cell therapy or their osteogenesis in BTE, few have focused on the effect of BMSCs in promoting osteogenesis in BTE through regulating the phenotype of macrophages...
April 11, 2018: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/29610150/osteoimmunology
#12
Kazuo Okamoto, Hiroshi Takayanagi
Bone is a crucial element of the skeletal-locomotor system, but also functions as an immunological organ that harbors hematopoietic stem cells (HSCs) and immune progenitor cells. Additionally, the skeletal and immune systems share a number of regulatory molecules, including cytokines and signaling molecules. Osteoimmunology was created as an interdisciplinary field to explore the shared molecules and interactions between the skeletal and immune systems. In particular, the importance of an inseparable link between the two systems has been highlighted by studies on the pathogenesis of rheumatoid arthritis (RA), in which pathogenic helper T cells induce the progressive destruction of multiple joints through aberrant expression of receptor activator of nuclear factor (NF)-κB ligand (RANKL)...
April 2, 2018: Cold Spring Harbor Perspectives in Medicine
https://www.readbyqxmd.com/read/29589061/overview-of-osteoimmunology
#13
REVIEW
Asuka Terashima, Hiroshi Takayanagi
Aberrant or prolonged immune responses often affect bone metabolism. The investigation on bone destruction observed in autoimmune arthritis contributed to the development of research area on effect of the immune system on bone. A number of reports on bone phenotypes of immunocompromised mice indicate that the immune and skeletal systems share various molecules, including transcription factors, signaling molecules, and membrane receptors, suggesting the interplay between the two systems. Furthermore, much attention has been paid to the modulation of immune cells, including hematopoietic progenitor cells, by bone cells in the bone marrow...
May 2018: Calcified Tissue International
https://www.readbyqxmd.com/read/29503739/regulation-of-osteoclast-differentiation-by-cytokine-networks
#14
REVIEW
Dulshara Sachini Amarasekara, Hyeongseok Yun, Sumi Kim, Nari Lee, Hyunjong Kim, Jaerang Rho
Cytokines play a pivotal role in maintaining bone homeostasis. Osteoclasts (OCs), the sole bone resorbing cells, are regulated by numerous cytokines. Macrophage colony-stimulating factor and receptor activator of NF-κB ligand play a central role in OC differentiation, which is also termed osteoclastogenesis. Osteoclastogenic cytokines, including tumor necrosis factor-α, IL-1, IL-6, IL-7, IL-8, IL-11, IL-15, IL-17, IL-23, and IL-34, promote OC differentiation, whereas anti-osteoclastogenic cytokines, including interferon (IFN)-α, IFN-β, IFN-γ, IL-3, IL-4, IL-10, IL-12, IL-27, and IL-33, downregulate OC differentiation...
February 2018: Immune Network
https://www.readbyqxmd.com/read/29323344/updating-osteoimmunology-regulation-of-bone-cells-by-innate-and-adaptive-immunity
#15
REVIEW
Matthew C Walsh, Noriko Takegahara, Hyunsoo Kim, Yongwon Choi
Osteoimmunology encompasses all aspects of the cross-regulation of bone and the immune system, including various cell types, signalling pathways, cytokines and chemokines, under both homeostatic and pathogenic conditions. A number of key areas are of increasing interest and relevance to osteoimmunology researchers. Although rheumatoid arthritis has long been recognized as one of the most common autoimmune diseases to affect bone integrity, researchers have focused increased attention on understanding how molecular triggers and innate signalling pathways (such as Toll-like receptors and purinergic signalling pathways) related to pathogenic and/or commensal microbiota are relevant to bone biology and rheumatic diseases...
March 2018: Nature Reviews. Rheumatology
https://www.readbyqxmd.com/read/29316218/local-administration-of-nuclear-factor-of-activated-t-cells-nfat-c1-inhibitor-to-suppress-early-resorption-and-inflammation-induced-by-bone-morphogenetic-protein-2
#16
Ri Youn Kim, Yeju Seong, Tae Hyung Cho, Beomseok Lee, In Sook Kim, Soon Jung Hwang
Nuclear factor of activated T cells (NFAT)-c1 is known as a key regulator in osteoclast differentiation and immune response. This study is a follow-up to our previous study showing the antiresorptive activity of VIVIT, a peptide type NFATc1 inhibitor, using absorbable collagen sponge (ACS). This study aimed to investigate the effective concentration range of local VIVIT that suppresses early excessive osteoclast activation and inflammation induced by high-dose recombinant human bone morphogenetic protein (rhBMP)-2 and concomitantly enhances bone healing in a rat critical-sized calvaria defect model...
May 2018: Journal of Biomedical Materials Research. Part A
https://www.readbyqxmd.com/read/29238018/-regulation-of-bone-by-il-17-producing-t-cells
#17
REVIEW
Kazuo Okamoto
  Bone is a component of the skeletal-locomotor system but also functions as an immunological organ that harbors hematopoietic stem and progenitor cells. Since the immune and skeletal systems are closely related through a number of shared regulatory molecules including cytokines and receptors, bone can be affected in various immune disorders. Rheumatoid arthritis is a typical disease in which the immune system affects the bone metabolism. The enhanced activity of osteoclasts by the activation of Th17 cells causes the joint destruction in rheumatoid arthritis...
2017: Nihon Rinshō Men'eki Gakkai Kaishi, Japanese Journal of Clinical Immunology
https://www.readbyqxmd.com/read/29191489/beyond-the-vicious-cycle-the-role-of-innate-osteoimmunity-automimicry-and-tumor-inherent-changes-in-dictating-bone-metastasis
#18
Katie L Owen, Belinda S Parker
Bone metastasis is a fatal consequence of a subset of solid malignancies that fail to respond to conventional therapies. While a myriad of factors contribute to osteotropism and disseminated cell survival and outgrowth in bone, efforts to inhibit tumor cell growth in the bone-metastatic niche have largely relied on measures that disrupt the bi-directional interactions between bone resident and tumor cells. However, the targeting of isolated stromal interactions has proven ineffective to date in inhibiting bone-metastatic progression and patient mortality...
November 27, 2017: Molecular Immunology
https://www.readbyqxmd.com/read/29179170/-osteoimmunology-by-innate-immune-cells
#19
Yoshio Katayama
A hematopoietic tissue, bone marrow, is located inside the bone. The functional interaction between skeletal and hematopoietic systems has been revealed recently. The roles of osteoblasts as a component of hematopoietic microenvironment have been intensively studied, which is now an important research field. On the other hand, the functions of hematopoietic cells as regulators of osteoblasts have also been elucidated gradually. This review describes how innate immune cells such as macrophages and neutrophils take part in bone metabolism...
2017: Clinical Calcium
https://www.readbyqxmd.com/read/29018933/from-osteoimmunology-to-osteomicrobiology-how-the-microbiota-and-the-immune-system-regulate-bone
#20
REVIEW
Emory Hsu, Roberto Pacifici
Osteomicrobiology refers to the role of microbiota in bone health and the mechanisms by which the microbiota regulates post-natal skeletal development, bone aging, and pathologic bone loss. Here, we review recent reports linking gut microbiota to changes in bone phenotype. A pro-inflammatory cytokine milieu drives bone resorption in conditions such as sex steroid hormone deficiency. The response of the immune system to activation by the microbiome results in increased circulating osteoclastogenic cytokines in a T cell-dependent mechanism...
May 2018: Calcified Tissue International
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