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https://www.readbyqxmd.com/read/28100421/osteoarthritis-year-in-review-2016-biology
#1
REVIEW
E N Blaney Davidson, A P M van Caam, P M van der Kraan
This review highlights a selection of literature in the area of osteoarthritis biology published between the 2015 and 2016 Osteoarthritis Research Society International (OARSI) World Congress. Highlights were selected from a pubmed search covering cartilage, bone, inflammation and pain. A personal selection was made based, amongst other things, on topics presented during the 2015 conference. This covers circadian rhythm, TGF-β signaling, autophagy, SIRT6, exercise, lubricin, TLR's, pain and NGF. Furthermore, in this review we have made an effort to connect these seemingly distant topics into one scheme of connections between them, revealing a theoretical big picture underneath...
December 17, 2016: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/28092987/emerging-treatment-approaches-for-myeloma-related-bone-disease
#2
Maria Gavriatopoulou, Meletios A Dimopoulos, Efstathios Kastritis, Evangelos Terpos
Multiple myeloma is characterized by the presence of osteolytic lesions that leads to devastating skeletal-related events in the majority of patients. Myeloma bone disease is attributed to increased osteoclastic and suppressed osteoblastic activity. Areas covered: Bisphosphonates remain the main treatment option, however they have limitations on their own. Understanding the pathogenesis of myeloma bone disease may provide a roadmap for new therapeutic approaches. The pathway of RANKRANKLOPG pathway has revealed denosumab, a monoclonal antibody targeting RANKL as a novel emerging therapy for myeloma-related bone disease...
January 17, 2017: Expert Review of Hematology
https://www.readbyqxmd.com/read/28075462/dnalk2-inhibits-the-proliferation-and-invasiveness-of-breast-cancer-mda-mb-231-cells-through-the-smad-dependent-pathway
#3
Ke Wang, Xiaoxiao Sun, Hong Lei Feng, Chang Fei, Yan Zhang
Breast cancer is one of the most common malignant neoplasms diagnosed in females worldwide. Bone morphogenetic proteins (BMPs), which belong to the TGF-β superfamily, regulate a wide range of cellular responses including cell proliferation, differentiation, adhesion, migration and apoptosis in breast cancer. BMPs can bind to type I and II serine/threonine kinase receptors to regulate cell proliferation, invasion, migration, and apoptosis. Type I receptors are expressed in various breast cancer cell lines and primary tumor samples...
February 2017: Oncology Reports
https://www.readbyqxmd.com/read/28074479/gdf8-inhibits-bone-formation-and-promotes-bone-resorption-in-mice
#4
Yu-Si Chen, Qi Guo, Li-Juan Guo, Ting Liu, Xian-Ping Wu, Zhang-Yuan Lin, Hong-Bo He, Tie-Jian Jiang
Growth Differentiation Factor 8 (GDF8), also called myostatin, is a member of the transforming growth factor (TGF)-β super-family. As a negative regulator of skeletal muscle growth, GDF8 is also associated with bone metabolism. However, the function of GDF8 in bone metabolism is not fully understood. Our study aimed to investigate the role of GDF8 in bone metabolism, both in vitro and in vivo. Our results showed that GDF8 had a negative regulatory effect on primary mouse osteoblasts, and promoted receptor activator of nuclear factor κB ligand (RANKL)-induced osteoclastogenesis in vitro...
January 11, 2017: Clinical and Experimental Pharmacology & Physiology
https://www.readbyqxmd.com/read/28069816/the-interaction-of-the-cd43-sialomucin-with-the-mycobacterium-tuberculosis-cpn60-2-chaperonin-mediates-macrophage-tnf-%C3%AE-production
#5
Alvaro Torres-Huerta, Tomas Villaseñor, Angel Flores-Alcantar, Cristina Parada, Estefanía Alemán-Navarro, Clara Espitia, Gustavo Pedraza-Alva, Yvonne Rosenstein
Mycobacterium tuberculosis is the causal agent of tuberculosis. TNF-α, TGF-β and IFN-γ secreted by activated macrophages and lymphocytes are considered essential to contain Mycobacterium tuberculosis infection. The CD43 sialomucin has been reported to act as a receptor for bacilli through its interaction with the chaperonin Cpn60.2, facilitating mycobacteria-macrophage contact. We report here that Cpn60.2 induces both THP-1 cells and bone marrow-derived macrophages (BMMs) to produce TNF-α and that this production is CD43 dependent...
January 9, 2017: Infection and Immunity
https://www.readbyqxmd.com/read/28064277/smad2-phosphorylation-in-diabetic-kidney-tubule-epithelial-cells-is-associated-with-modulation-of-several-transforming-growth-factor-%C3%AE-family-members
#6
Lise Høj Thomsen, Morten Fog-Tonnesen, Lisbeth Nielsen Fink, Jenny Norlin, Amaya García de Vinuesa, Troels Krarup Hansen, Emile de Heer, Peter Ten Dijke, Alexander Rosendahl
BACKGROUND: The role of transforming growth factor-β (TGF-β) has recently gained much attention in diabetic nephropathy and kidney fibrosis. In this study, we extend this to an assessment of transcriptional regulation of the entire TGF-β superfamily in kidneys from diabetic vs. healthy mice. In order to study the translation between mouse model and patients, we evaluated the signature of phosphorylated Sma- and Mad-related protein 2 (pSmad2), as molecular marker of TGF-β/activin activity, in the kidneys of streptozotocin (STZ)-treated mice compared to that of type 1 diabetes (T1D) patients...
January 7, 2017: Nephron
https://www.readbyqxmd.com/read/28062564/tgf-%C3%AE-bone-morphogenetic-protein-and-activin-signaling-and-the-tumor-microenvironment
#7
Michael W Pickup, Philip Owens, Harold L Moses
The cellular and noncellular components surrounding the tumor cells influence many aspects of tumor progression. Transforming growth factor β (TGF-β), bone morphogenetic proteins (BMPs), and activins have been shown to regulate the phenotype and functions of the microenvironment and are attractive targets to attenuate protumorigenic microenvironmental changes. Given the pleiotropic nature of the cytokines involved, a full understanding of their effects on numerous cell types in many contexts is necessary for proper clinical intervention...
January 6, 2017: Cold Spring Harbor Perspectives in Biology
https://www.readbyqxmd.com/read/28062213/anti-fibrotic-effects-of-bone-morphogenetic-protein-7-modified-bone-marrow-mesenchymal-stem-cells-on-silica-induced-pulmonary-fibrosis
#8
Xiaoli Li, Guoliang An, Yan Wang, Di Liang, Zhonghui Zhu, Ximeng Lian, Piye Niu, Caixia Guo, Lin Tian
Silicosis is an occupational lung disease caused by exposure to small particles of crystalline silica, which ultimately results in diffuse pulmonary fibrosis. Evidence indicates an anti-fibrotic role of bone morphogenetic protein-7 (BMP-7) and bone marrow mesenchymal stem cells (BMSCs) in lung diseases. Therefore, strategies incorporating genetic engineering and stem cell biology might have a tremendous potential to treat critical injuries and diseases. Therefore, we modified BMSCs to overexpress the BMP-7 gene (BMP-7-BMSCs) by lentivirus transduction, and then evaluated whether fibrotic processes were inhibited by these cells in vivo...
January 4, 2017: Experimental and Molecular Pathology
https://www.readbyqxmd.com/read/28035539/brucine-inhibits-bone-metastasis-of-breast-cancer-cells-by-suppressing-jagged1-notch1-signaling-pathways
#9
Ke-Fei Hu, Xiang-Ying Kong, Mi-Cun Zhong, Hong-Ye Wan, Na Lin, Xiao-Hua Pei
OBJECTIVE: To examine the effects of brucine on the invasion, migration and bone resorption of receptor activator of nuclear factor-kappa B ligand (RANKL)-induced osteoclastogenesis. METHODS: The osteoclastogenesis model was builded by co-culturing human breast tumor MDA-MB-231 and mouse RAW264.7 macrophages cells. RANKL (50 ng/mL) and macrophage-colony stimulating factor (50 ng/mL) were added to this system, followed by treatment with brucine (0.02, 0.04 and 0...
December 29, 2016: Chinese Journal of Integrative Medicine
https://www.readbyqxmd.com/read/28035402/transforming-growth-factor-%C3%AE-1-suppresses-bone-morphogenetic-protein-2-induced-mesenchymal-epithelial-transition-in-hsc-4-human-oral-squamous-cell-carcinoma-cells-via-smad1-5-9-pathway-suppression
#10
Takahiro Chiba, Akira Ishisaki, Seiko Kyakumoto, Toshiyuki Shibata, Hiroyuki Yamada, Masaharu Kamo
Squamous cell carcinoma is the most common cancer in the oral cavity. We previously demonstrated that transforming growth factor-β1 (TGF-β1) promotes the epithelial-mesenchymal transition (EMT) of human oral squamous cell carcinoma (hOSCC) cells; however, it remains to be clarified whether the TGF-β superfamily member bone morphogenetic protein (BMP) affects this process in hOSCC cells. Here, we examined the independent and collective effects of TGF-β1 and BMP-2 on EMT and mesenchymal‑epithelial transition (MET) in a panel of four hOSCC cell lines...
February 2017: Oncology Reports
https://www.readbyqxmd.com/read/28034724/disruption-of-transforming-growth-factor-%C3%AE-superfamily-signaling-a-shared-mechanism-underlying-hereditary-cerebral-small-vessel-disease
#11
REVIEW
Yumi Yamamoto, Masafumi Ihara
Cerebral small vessel disease (SVD) is not only one of the leading causes of cognitive impairment but also an important contributory factor in Alzheimer's disease. SVD and related white matter changes are common in the elderly, but the underlying pathogenic mechanism remains unclear. The end-stage pathology of SVD often involves replacement of vascular smooth muscle cells with collagenous or other nontensile fibrillary material. Recent studies on hereditary SVD have revealed a close relationship between small vessel pathology and disruption of transforming growth factor-β (TGF-β) superfamily signaling...
December 26, 2016: Neurochemistry International
https://www.readbyqxmd.com/read/28032372/microrna-210-is-increased-and-it-is-required-for-dedifferentiation-of-osteosarcoma-cell-line
#12
Haixia Zhang, Qing Mai, Juntao Chen
Osteosarcoma (OS) is the most common malignant bone tumor and is prevalent in adolescents. In clinical studies, miR-210 has been reported to be tightly correlated to the poor prognosis of OS. Nevertheless, its roles in OS have not been fully elucidated. In view of the central role played by OS stem cells (OSCs) in the malignant progression of OS, this study investigated the influence of miR-210 on the formation of OSCs. Our previous findings suggested that the microenvironment of bone, abundant TGF-β1 and hypoxia, could induce OS cells to dedifferentiate into OSCs...
December 29, 2016: Cell Biology International
https://www.readbyqxmd.com/read/28030842/loss-of-runx3-expression-inhibits-bone-invasion-of-oral-squamous-cell-carcinoma
#13
Junhee Park, Hyun-Jeong Kim, Ki Rim Kim, Sun Kyoung Lee, Hyungkeun Kim, Kwang-Kyun Park, Won-Yoon Chung
High recurrence and lower survival rates in patients with oral squamous cell carcinoma (OSCC) are associated with its bone invasion. We identified the oncogenic role of RUNX3 during bone invasion by OSCC. Tumor growth and the generation of osteolytic lesions were significantly inhibited in mice that were subcutaneously inoculated with RUNX3-knockdown human OSCC cells. RUNX3 knockdown enhanced TGF-β-induced growth arrest and inhibited OSCC cell migration and invasion in the absence or presence of transforming growth factor-β (TGF-β), a major growth factor abundant in the bone microenvironment...
December 21, 2016: Oncotarget
https://www.readbyqxmd.com/read/28029182/nedd4-deficiency-in-vascular-smooth-muscle-promotes-vascular-calcification-by-stabilizing-psmad1
#14
Ji-Hyun Lee, Seon-Ae Jeon, Byung-Gyu Kim, Michiko Takeda, Jae-Jin Cho, Dong-Ik Kim, Hiroshi Kawabe, Je-Yoel Cho
The nonosseous calcification process such as atherosclerosis is one of the major complications in several types of metabolic diseases. In previous study, we uncovered that aberrant activity of TGF-β signaling pathway could contribute the vascular smooth muscle cells (VSMCs) calcification process. Also, we identified NEDD4 E3 ligase as a key suppressor of BMP/Smad pathway via a polyubiquitination dependent selective degradation of C-terminal phosphorylated Smad1 (pSmad1) activated by TGF-β⋅ Here, we further validated and confirmed the role of Nedd4 in in vivo vascular calcification progression...
December 28, 2016: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
https://www.readbyqxmd.com/read/28025714/bone-marrow-mesenchymal-stem-cell-transplantation-improves-radiation-induced-heart-injury-through-dna-damage-repair-in-rat-model
#15
Song Gao, Zhiying Zhao, Rong Wu, Yuecan Zeng, Zhenyong Zhang, Jianing Miao, Zhengwei Yuan
Radiotherapy is an effective form of therapy for most thoracic malignant tumors. However, myocardial injury resulting from the high doses of radiation is a severe complication. Here we aimed to study the possibility of reducing radiation-induced myocardial injury with mesenchymal stem cell (MSC) transplantation. We used MSCs extracted from bone marrow (BMSCs) to transplant via the tail vein into a radiation-induced heart injury (RIHI) rat model. The rats were divided into six groups: a Sham group, an IRR (irradiation) group, and four IRR + BMSCs transplantation groups obtained at different time points...
December 26, 2016: Radiation and Environmental Biophysics
https://www.readbyqxmd.com/read/28024592/bi-layered-constructs-of-poly-glycerol-sebacate-%C3%AE-tricalcium-phosphate-for-bone-soft-tissue-interface-applications
#16
Atakan Tevlek, Pezhman Hosseinian, Cansel Ogutcu, Mustafa Turk, Halil Murat Aydin
This study aims to establish a facile protocol for the preparation of a bi-layered poly(glycerol-sebacate) (PGS)/β-tricalcium phosphate (β-TCP) construct and to investigate its potential for bone-soft tissue engineering applications. The layered structure was prepared by distributing the ceramic particles within a prepolymer synthesized in a microwave reactor followed by a cross-linking of the final construct in vacuum (<10mbar). The vacuum stage led to the separation of cross-linked elastomer (top) and ceramic (bottom) phases...
March 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28012456/comparative-phenotypic-transcriptional-characterization-of-human-full-term-placenta-derived-mesenchymal-stromal-cells-compared-to-bone-marrow-derived-mesenchymal-stromal-cells-after-differentiation-in-myogenic-medium
#17
Melanie L Hart, Marvin Kaupp, Juliane Brun, Wilhelm K Aicher
Placenta-derived mesenchymal stromal cells (pMSCs) are a very attractive source of MSCs. In this short report we evaluated the expression of phenotypic markers from fetal and maternal pMSCs after exposure to myogenic medium commonly used to differentiate bone marrow MSCs (bmMSCs) to smooth muscle-like cells (SMCs). In order to reveal differences between these different MSC sources, cells were expanded and differentiated to elucidate whether this differentiation protocol facilitated efficient differentiation of SMCs from human pMSCs...
January 2017: Placenta
https://www.readbyqxmd.com/read/28009291/myeloid-derived-suppressor-cells-are-controlled-by-regulatory-t-cells-via-tgf-%C3%AE-during-murine-colitis
#18
Cho-Rong Lee, Yewon Kwak, Taewoo Yang, Jung Hyun Han, Sang-Heon Park, Michael B Ye, Wongeun Lee, Kyu-Young Sim, Jung-Ah Kang, Yong-Chul Kim, Sarkis K Mazmanian, Sung-Gyoo Park
Myeloid-derived suppressor cells (MDSCs) are well known regulators of regulatory T cells (Treg cells); however, the direct regulation of MDSCs by Treg cells has not been well characterized. We find that colitis caused by functional deficiency of Treg cells leads to altered expansion and reduced function of MDSCs. During differentiation of MDSCs in vitro from bone marrow cells, Treg cells enhanced MDSC function and controlled their differentiation through a mechanism involving transforming growth factor-β (TGF-β)...
December 20, 2016: Cell Reports
https://www.readbyqxmd.com/read/27986931/bone-morphogenetic-protein-2-regulates-cell-cell-communication-by-down-regulating-connexin43-expression-in-luteinized-human-granulosa-cells
#19
Yan-Ting Wu, Hsun-Ming Chang, He-Feng Huang, Jian-Zhong Sheng, Peter C K Leung
STUDY QUESTION: Does bone morphogenetic protein 2 (BMP2) regulate connexin43 (Cx43) and modulate cell-cell communication in luteinized human granulosa cells? SUMMARY ANSWER: BMP2 decreases gap junction intercellular communication (GJIC) of luteinized human granulosa cells by down-regulating Cx43 expression through an activin receptor-like kinase (ALK)2/ALK3-mediated Sma- and Mad-related protein (SMAD)-dependent signaling pathway. WHAT IS KNOWN ALREADY: BMP2 and its putative receptors are highly expressed in the human corpus luteum and are involved in the process of luteolysis...
December 16, 2016: Molecular Human Reproduction
https://www.readbyqxmd.com/read/27965094/isoform-specific-regulation-of-osteogenic-factors-by-polypeptide-n-acetylgalactosaminyltransferases-1-and-4
#20
Juan Tang, Hanxi Zheng, Ling Chen, Shangshang Gao, Xiaorui Shi, Jingjing Liu, Lan Xu
The family of UDP-GalNAc polypeptide: N-Acetylgalactosaminlytransfersases (ppGalNAcTs) catalyzes the initial step of O-linked protein glycosylation. Mucin-type O-glycoproteins are abundant in the bone and may play an important role in osteogenesis. Herein, we examined the effects of ppGalNAc-T isoforms on osteogenesis of MC3T3-E1 pre-osteoblasts. We found that ppGalNAc-T1 and -T4 isoforms were highly expressed during osteogenesis of MC3T3-E1 and their knockdown by short hairpin RNA (shRNA) decreased osteoblast formation and bone mineralization...
January 22, 2017: Biochemical and Biophysical Research Communications
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