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https://www.readbyqxmd.com/read/29334656/activated-protein-c-suppresses-osteoclast-differentiation-via-endothelial-protein-c-receptor-protease-activated-receptor-1-sphingosine-1-phosphate-receptor-and-apolipoprotein-e-receptor-2
#1
Kakunoshin Yoshida, Nobuyuki Akita, Takayuki Okamoto, Kunihiro Asanuma, Atsumasa Uchida, Akihiro Sudo, Motomu Shimaoka, Koji Suzuki, Tatsuya Hayashi
INTRODUCTION: Bone remodeling relies on a delicate balance between formation and resorption of bone tissues, processes in which bone-forming osteoblasts and bone-resorbing osteoclasts play central roles. Recently, we reported that anticoagulant activated protein C (APC) promotes osteoblast proliferation, but the role of the blood coagulation system in bone remodeling remains unclear. In this study, to further elucidate the relationship between bone remodeling and blood coagulation, we investigated the effect of APC on osteoclast differentiation...
January 3, 2018: Thrombosis Research
https://www.readbyqxmd.com/read/29332162/roles-of-irisin-in-the-linkage-from-muscle-to-bone-during-mechanical-unloading-in-mice
#2
Naoyuki Kawao, Akihiro Moritake, Kohei Tatsumi, Hiroshi Kaji
Mechanical unloading induces disuse muscle atrophy and bone loss, but the details in mechanism involved in those pathophysiological conditions are not fully understood. Interaction between muscle and bone has been recently noted. Here, we investigated the roles of humoral factors linking muscle to bone during mechanical unloading using mice with hindlimb unloading (HU) and sciatic neurectomy (SNX). HU and SNX reduced muscle volume surrounding the tibia, tissue weights of soleus and gastrocnemius muscle, and trabecular bone mineral density (BMD) in the tibia of mice...
January 13, 2018: Calcified Tissue International
https://www.readbyqxmd.com/read/29330358/pathogenesis-of-bone-disease-in-multiple-myeloma-from-bench-to-bedside
#3
REVIEW
Evangelos Terpos, Ioannis Ntanasis-Stathopoulos, Maria Gavriatopoulou, Meletios A Dimopoulos
Osteolytic bone disease is the hallmark of multiple myeloma, which deteriorates the quality of life of myeloma patients, and it affects dramatically their morbidity and mortality. The basis of the pathogenesis of myeloma-related bone disease is the uncoupling of the bone-remodeling process. The interaction between myeloma cells and the bone microenvironment ultimately leads to the activation of osteoclasts and suppression of osteoblasts, resulting in bone loss. Several intracellular and intercellular signaling cascades, including RANK/RANKL/OPG, Notch, Wnt, and numerous chemokines and interleukins are implicated in this complex process...
January 12, 2018: Blood Cancer Journal
https://www.readbyqxmd.com/read/29328471/prostaglandin-e2-receptor-ep4-is-involved-in-the-cell-growth-and-invasion-of-prostate-cancer-via-the-camp%C3%A2-pka-pi3k%C3%A2-akt-signaling-pathway
#4
Song Xu, Wenquan Zhou, Jingping Ge, Zhengyu Zhang
Prostate cancer (PCa) is one of the most prevalent diagnosed malignancies globally. Previous studies have demonstrated that prostaglandin E2 (PGE2) is closely associated with the tumorigenesis and progression of PCa. However, the underlying molecular mechanisms remain unclear and require further investigation. Matrix metalloproteinases (MMPs), receptor activator of nuclear factor‑κB ligand (RANKL) and runt‑related transcription factor 2 (RUNX2), which are involved in cell growth and bone metastasis, are frequently activated or overexpressed in various types of cancer, including PCa...
January 9, 2018: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29328414/malat1-enhanced-the-proliferation-of-human-osteoblasts-treated-with-ultra%C3%A2-high-molecular-weight-polyethylene-by-targeting-vegf-via-mir%C3%A2-22%C3%A2-5p
#5
Xucheng Yang, Yingying Zhang, Yusheng Li, Ting Wen
Osteolysis associated with an implanted prosthesis is the major cause of failure in prosthesis implantation, and a severe public health issue worldwide. The type of bone metabolism associated with this disorder has been a major focus for improving the outcomes of patients with osteolysis. The role of metastasis‑associated lung adenocarcinoma transcript 1 (MALAT1; a member of the long coding RNA family) during the onset of osteolysis and the related molecular regulatory mechanism in ultra‑high molecular weight polyethylene (UHMWPE)‑treated hFOB 1...
January 4, 2018: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/29328370/ammonium-tetrathiomolybdate-enhances-the-antitumor-effects-of-cetuximab-via-the-suppression-of-osteoclastogenesis-in-head-and-neck-squamous-carcinoma
#6
Ayaka Morisawa, Tatsuo Okui, Tsuyoshi Shimo, Soichiro Ibaragi, Yuka Okusha, Mitsuaki Ono, Thi Thu Ha Nguyen, Nur Mohammad Monsur Hassan, Akira Sasaki
Head and neck squamous cell carcinoma (HNSCC) poses a significant challenge clinically where one of the mechanisms responsible for the invasion into facial bones occurs via the activation of osteoclasts. Copper has been demonstrated to play a key role in skeletal remodeling. However, the role of copper in cancer-associated bone destruction is thus far unknown. Lysyl oxidase (LOX) is a copper-dependent enzyme that promotes osteoclastogenesis. In the present study, we investigated the effects of copper on HNSCC with bone invasion by the copper chelator, ammonium tetrathiomolybdate (TM) in vitro and in vivo...
January 10, 2018: International Journal of Oncology
https://www.readbyqxmd.com/read/29325759/snps-in-the-vicinity-of-p2x7r-rank-rankl-opg-and-wnt-signalling-pathways-and-their-association-with-bone-phenotypes-in-academy-footballers
#7
Ian Varley, David C Hughes, Julie P Greeves, William D Fraser, Craig Sale
CONTEXT: Genotype plays an important role in influencing bone phenotypes, such as bone mineral density, but the role of genotype in determining responses of bone to exercise has yet to be elucidated. OBJECTIVE: To determine whether 10 SNPs associated with genes in the vicinity of P2X7R, RANK/RANKL/OPG and Wnt Signalling Pathways are associated with bone phenotypes in elite academy footballers (Soccer players) and to determine whether these genotypes are associated with training induced changes in bone...
January 8, 2018: Bone
https://www.readbyqxmd.com/read/29323724/autoregulation-of-rank-ligand-in-oral-squamous-cell-carcinoma-tumor-cells
#8
Yuvaraj Sambandam, Purushoth Ethiraj, Jessica Hathway-Schrader, Chad Novince, Ezhil Panneerselvam, Kumaran Sundaram, Sakamuri V Reddy
Oral squamous cell carcinoma (OSCC) is the most common malignancy among oral cancers and shows potent activity for local bone invasion. Receptor activator of nuclear factor κB (RANK) ligand (RANKL) is critical for bone-resorbing osteoclast formation. We previously demonstrated that OSCC tumor cells express high levels of RANKL. In this study, confocal microscopy demonstrated RANKL specific receptor, RANK expression in OSCC tumor cell lines (SCC1, SCC12 and SCC14a). We also confirmed the expression of RANK and RANKL in primary human OSCC tumor specimens...
January 11, 2018: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29317302/bu-shen-tong-luo-decoction-prevents-bone-loss-via-inhibition-of-bone-resorption-and-enhancement-of-angiogenesis-in-ovariectomy-induced-osteoporosis-of-rats
#9
Han Yuan, Linyan Xiao, Wen Min, Wenchao Yuan, Shengfeng Lu, Guicheng Huang
ETHNOPHARMACOLOGICAL RELEVANCE: Gathering three ancient formulas, traditional Chinese medicine Bu-Shen-Tong-Luo decoction (BSTLD) has been used to treat postmenopausal osteoporosis (PMO) at the Jiangsu Province Hospital of Chinese Medicine for decades. However, the effect of BSTLD on angiogenesis and bone resorption as well as its possible mechanism are still unknown. AIM OF THE STUDY: This study was aimed to evaluate the preventive effect of BSTLD on ovariectomy-induced bone loss and vasculature disorder, and to investigate the possible bone protection mechanism of BSTLD in inhibiting bone resorption by enhancing angiogenesis signaling in ovariectomy-induced osteoporosis of rats...
January 6, 2018: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/29316231/osteogenic-cellular-activity-around-onlaid-octacalcium-phosphate-gelatin-composite-onto-rat-calvaria
#10
Ryosuke Iwama, Takahisa Anada, Yukari Shiwaku, Kaori Tsuchiya, Tetsu Takahashi, Osamu Suzuki
The activity and the distribution of osteogenic cells around octacalcium phosphate (OCP) granules combined with gelatin matrix (OCP/Gel) onlaid on rat calvaria were analyzed histomorphometrically and immunohistochemically during vertical bone augmentation under mechanical or non-mechanical environment until 8 weeks. OCP/Gel disk was placed in subperiosteal pocket on the calvaria with or without polytetrafluoroethylene (PTFE) support. The latter is a non-mechanical stress model to alleviate the mechanical stress from the subcutaneous tissues...
January 9, 2018: Journal of Biomedical Materials Research. Part A
https://www.readbyqxmd.com/read/29315650/levels-of-oxidative-stress-biomarkers-and-bone-resorption-regulators-in-apical-periodontitis-lesions-infected-by-epstein-barr-virus
#11
A Jakovljevic, M Andric, N Nikolic, V Coric, S Krezovic, J Carkic, A Knezevic, K Beljic-Ivanovic, M Plješa-Ercegovac, M Miletić, I Soldatovic, T Radosavljevic, T Jovanovic, T Simic, V Ivanovic, J Milasin
AIM: To investigate whether apical periodontitis lesions infected by Epstein-Barr virus (EBV) exhibit higher levels of oxidative stress biomarkers (8-hydroxydeoxyguanosine (8-OHdG) and oxidized glutathione (GSSG)) and bone resorption regulators (receptor activator of nuclear factor (NF-κB) ligand (RANKL) and osteoprotegerin (OPG)) compared to EBV negative periapical lesions and healthy pulp tissues. METHODOLOGY: The experimental group consisted of 30 EBV positive and 30 EBV negative periapical lesions collected in conjunction with apicoectomy...
January 9, 2018: International Endodontic Journal
https://www.readbyqxmd.com/read/29306659/breast-osteoblast-like-cells-a-reliable-early-marker-for-bone-metastases-from-breast-cancer
#12
Manuel Scimeca, Chiara Antonacci, Nicola Toschi, Elena Giannini, Rita Bonfiglio, Claudio Oreste Buonomo, Chiara Adriana Pistolese, Umberto Tarantino, Elena Bonanno
BACKGROUND: The development of bone metastasis from breast cancer results from a functional interaction between tumor cells and osteoclasts or osteoblasts. The main aim of this study was therefore to test the hypothesis that the appearance of breast osteoblast-like cells (BOLCs) in primary mammary lesions is a precursor (and hence an early predictor) of the formation of breast cancer metastases to bone. PATIENTS AND METHODS: In this study, we collected 64 breast infiltrating carcinomas, 50 breast benignant lesions, and 10 biopsies of bone metastasis selected from patients with infiltrated carcinoma...
December 5, 2017: Clinical Breast Cancer
https://www.readbyqxmd.com/read/29305867/binding-of-pick1-pdz-domain-with-calcineurin-b-regulates-osteoclast-differentiation
#13
Yuya Kamano, Jun Watanabe, Tsutomu Iida, Takeru Kondo, Hiroko Okawa, Hirofumi Yatani, Makio Saeki, Hiroshi Egusa
The calcineurin/nuclear factor of activated T cell (NFAT) signaling pathway plays a major role in osteoclast differentiation; however, the proteins that react with the calcineurin-NFAT complex in osteoclasts to regulate osteoclastogenesis remain unclear. Here, we present evidence that PICK1 also positively regulates calcineurin B in osteoclasts to activate NFAT to promote osteoclastogenesis. mRNA and protein expression of PICK1 in murine primary bone marrow macrophages (BMMs) was significantly increased during RANKL-induced osteoclast differentiation...
January 3, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29304378/life-course-genome-wide-association-study-meta-analysis-of-total-body-bmd-and-assessment-of-age-specific-effects
#14
Carolina Medina-Gomez, John P Kemp, Katerina Trajanoska, Jian'an Luan, Alessandra Chesi, Tarunveer S Ahluwalia, Dennis O Mook-Kanamori, Annelies Ham, Fernando P Hartwig, Daniel S Evans, Raimo Joro, Ivana Nedeljkovic, Hou-Feng Zheng, Kun Zhu, Mustafa Atalay, Ching-Ti Liu, Maria Nethander, Linda Broer, Gudmar Porleifsson, Benjamin H Mullin, Samuel K Handelman, Mike A Nalls, Leon E Jessen, Denise H M Heppe, J Brent Richards, Carol Wang, Bo Chawes, Katharina E Schraut, Najaf Amin, Nick Wareham, David Karasik, Nathalie Van der Velde, M Arfan Ikram, Babette S Zemel, Yanhua Zhou, Christian J Carlsson, Yongmei Liu, Fiona E McGuigan, Cindy G Boer, Klaus Bønnelykke, Stuart H Ralston, John A Robbins, John P Walsh, M Carola Zillikens, Claudia Langenberg, Ruifang Li-Gao, Frances M K Williams, Tamara B Harris, Kristina Akesson, Rebecca D Jackson, Gunnar Sigurdsson, Martin den Heijer, Bram C J van der Eerden, Jeroen van de Peppel, Timothy D Spector, Craig Pennell, Bernardo L Horta, Janine F Felix, Jing Hua Zhao, Scott G Wilson, Renée de Mutsert, Hans Bisgaard, Unnur Styrkársdóttir, Vincent W Jaddoe, Eric Orwoll, Timo A Lakka, Robert Scott, Struan F A Grant, Mattias Lorentzon, Cornelia M van Duijn, James F Wilson, Kari Stefansson, Bruce M Psaty, Douglas P Kiel, Claes Ohlsson, Evangelia Ntzani, Andre J van Wijnen, Vincenzo Forgetta, Mohsen Ghanbari, John G Logan, Graham R Williams, J H Duncan Bassett, Peter I Croucher, Evangelos Evangelou, Andre G Uitterlinden, Cheryl L Ackert-Bicknell, Jonathan H Tobias, David M Evans, Fernando Rivadeneira
Bone mineral density (BMD) assessed by DXA is used to evaluate bone health. In children, total body (TB) measurements are commonly used; in older individuals, BMD at the lumbar spine (LS) and femoral neck (FN) is used to diagnose osteoporosis. To date, genetic variants in more than 60 loci have been identified as associated with BMD. To investigate the genetic determinants of TB-BMD variation along the life course and test for age-specific effects, we performed a meta-analysis of 30 genome-wide association studies (GWASs) of TB-BMD including 66,628 individuals overall and divided across five age strata, each spanning 15 years...
January 4, 2018: American Journal of Human Genetics
https://www.readbyqxmd.com/read/29304006/suppression-of-rankl-induced-osteoclastogenesis-by-the-metabolites-from-the-marine-fungus-aspergillus-flocculosus-isolated-from-a-sponge-stylissa-sp
#15
Hee Jae Shin, Byeoung-Kyu Choi, Phan Thi Hoai Trinh, Hwa-Sun Lee, Jong Soon Kang, Tran Thi Thanh Van, Hyi-Seung Lee, Jong Seok Lee, Yeon-Ju Lee, Jihoon Lee
A new α-pyrone merosesquiterpenoid possessing an angular tetracyclic carbon skeleton, ochraceopone F (1), and four known secondary metabolites, aspertetranone D (2), cycloechinulin (3), wasabidienone E (4), and mactanamide (5), were isolated from the marine fungus Aspergillus flocculosus derived from a sponge Stylissa sp. collected in Vietnam. The structures of Compounds 1-5 were elucidated by analysis of 1D and 2D NMR spectra and MS data. All the isolated compounds were evaluated for anti-proliferation activity and their suppression effects on receptor activator of nuclear factor κB ligand (RANKL)-induced osteoclast differentiation using tartate-resisant acid phosphatase (TRAP)...
January 5, 2018: Marine Drugs
https://www.readbyqxmd.com/read/29297549/rank-rankl-opg-expression-in-rapid-maxillary-expansion
#16
Maya Fernanda Manfrin Arnez, Larissa Soares Nogueira Ribeiro, Gabriel Dessotti Barretto, Patrícia Maria Monteiro, Edilson Ervolino, Maria Bernadete Sasso Stuani
The aim of this study was to evaluate osteoclastogenesis signaling in midpalatal suture after rapid maxillary expansion (RME) in rats. Thirty male Wistar rats were randomly assigned to two groups with 15 animals each: control (C) and RME group. RME was performed by inserting a 1.5-mm-thick circular metal ring between the maxillary incisors. The animals were euthanized at 3, 7 and 10 days after RME. qRT-PCR was used to evaluate expression of Tnfsf11 (RANKL), Tnfrsf11a (RANK) and Tnfrsf11b (OPG). Data were submitted to statistical analysis using two-way ANOVA followed by Tukey test (a=0...
May 2017: Brazilian Dental Journal
https://www.readbyqxmd.com/read/29296887/mesenchymal-stem-cells-expressing-osteoprotegerin-variants-inhibit-osteolysis-in-a-murine-model-of-multiple-myeloma
#17
Jerome T Higgs, Joo Hyoung Lee, Hong Wang, Vishnu C Ramani, Diptiman Chanda, Cherlene Y Hardy, Ralph D Sanderson, Selvarangan Ponnazhagan
The current treatment options for multiple myeloma (MM) osteolytic lesions are mainly combinations of chemotherapy and other small-molecule inhibitors, but toxic side effects still remain a major concern. Studies have shown that osteoclast activity is enhanced in MM patients through increased expression of receptor activator of nuclear factor κB ligand (RANKL), triggering RANK signaling on osteoclast precursors, which results in aggressive bone resorption. Furthermore, osteoprotegerin (OPG), a decoy receptor for RANKL, and the osteogenic potential of mesenchymal stem cells (MSCs) are significantly decreased in myeloma patients with multiple bone lesions...
November 28, 2017: Blood Advances
https://www.readbyqxmd.com/read/29296571/water-extract-of-uncaria-sinensis-suppresses-rankl-induced-bone-loss-by-attenuating-osteoclast-differentiation-and-bone-resorption
#18
Hyunil Ha, Ki-Shuk Shim, Jin Yeul Ma
Background: The hooks and stems of Uncaria sinensis have been used to mitigate cardiovascular and central nervous system disorders in Asia traditional medicine. Regulation of osteoclast differentiation and activity is a major target for preventing and treating pathological bone diseases. Methods: Tartrate-resistant acid phosphatase (TRAP) activity and the number of TRAP-stained multinucleated cells were used to examine receptor activator of nuclear factor-κB ligand (RANKL)-induced osteoclast differentiation...
December 2017: Integrative Medicine Research
https://www.readbyqxmd.com/read/29289710/early-molecular-response-and-microanatomical-changes-in-the-masseter-muscle-and-mandibular-head-after-botulinum-toxin-intervention-in-adult-mice
#19
Julián Balanta-Melo, Viviana Toro-Ibacache, Maria Angélica Torres-Quintana, Kornelius Kupczik, Carolina Vega, Camilo Morales, Nadia Hernández-Moya, Manuel Arias-Calderón, Carolina Beato, Sonja Buvinic
BACKGROUND: Masseter muscle paralysis induced by botulinum toxin type A (BoNTA) evokes subchondral bone loss in mandibular heads of adult rats and growing mice after 4 weeks. However, the primary cellular and molecular events leading to altered bone remodeling remain unexplored. Thus, the aim of the current work has been to assess the molecular response that precedes the early microanatomical changes in the masseter muscle and subchondral bone of the mandibular head in adult mice after BoNTA intervention...
December 28, 2017: Annals of Anatomy, Anatomischer Anzeiger: Official Organ of the Anatomische Gesellschaft
https://www.readbyqxmd.com/read/29288400/anti-inflammatory-and-antiresorptive-effects-of-calendula-officinalis-on-inflammatory-bone-loss-in-rats
#20
Joanna Trycia M Alexandre, Luzia Hermínia Teixeira Sousa, Mario Roberto Pontes Lisboa, Flávia A C Furlaneto, Danielle Rocha do Val, Mirna Marques, Hellíada C Vasconcelos, Iracema Matos de Melo, Renata Leitão, Gerly Anne Castro Brito, Paula Goes
OBJECTIVE: The aim of this work was to evaluate the anti-inflammatory and antiresorptive effects of Calendula officinalis (CLO) on alveolar bone loss (ABL) in rats. MATERIAL AND METHODS: Male Wistar rats were subjected to ABL by ligature with nylon thread around the second upper left molar. The contralateral hemimaxillae were used as control. Rats received saline solution (SAL) or CLO (10, 30, or 90 mg/kg) 30 min before ligature and daily until the 11th day. The maxillae were removed and prepared for macroscopic, radiographic, micro-tomographic, histopathologic, histometric analysis, and immunohistochemical localization of receptor activator of nuclear factor kappa-B ligand (RANKL) and osteoprotegerin (OPG)...
December 29, 2017: Clinical Oral Investigations
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