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https://www.readbyqxmd.com/read/27780042/immunoexpression-of-bmp-2-and-bmp-4-and-their-receptors-bmpr-ia-and-bmpr-ii-in-ameloblastomas-and-adenomatoid-odontogenic-tumors
#1
Marcelo Anderson Barbosa Nascimento, Cassiano Francisco Weege Nonaka, Carlos Augusto Galvão Barboza, Roseana de Almeida Freitas, Leão Pereira Pinto, Lélia Batista de Souza
OBJECTIVES: The present study evaluated the immunohistochemical expression of BMP-2 and BMP-4 and of their receptors (BMPR-IA and BMPR-II) in solid ameloblastoma (SA), unicystic ameloblastoma (UA) and adenomatoid odontogenic tumor (AOT) in order to obtain a better understanding of their role in the development and biological behavior of these tumors. DESIGN: This study analyzed these proteins in 30 cases of SA, 10 cases of UA, and 30 cases of AOT. Immunoexpression was evaluated in the parenchyma and stroma by attributing the following scores: 0, no stained cells; 1, ≤10%; 2, >10% and ≤25%; 3, >25% and ≤50%; 4, >50% and ≤75%...
October 19, 2016: Archives of Oral Biology
https://www.readbyqxmd.com/read/27754275/sy-18-1-translational-research-in-pah
#2
Wook-Jin Chung
Pulmonary arterial hypertension (PAH) is a life-threatening disorder with a poor prognosis and causes pulmonary vascular remodeling accompanied with increased pulmonary arterial medial wall thickness and fibrosis, which leads to vascular and right ventricular (RV) dysfunction. Despite treatment with prostacyclin, endothelin antagonist, and phosphodiesterase-5 inhibitors the 1-year mortality rate of PAH still remains high. Recent registries, clinical trials, and basic researches have been increasing the knowledge of PAH and it would contribute to potential therapeutic strategies and better clinical outcome...
September 2016: Journal of Hypertension
https://www.readbyqxmd.com/read/27748860/bone-morphogenetic-protein%C3%A2-9-promotes-the-differentiation-of-mouse-spleen-macrophages-into-osteoclasts-via-the-alk1-receptor-and-erk-1-2-pathways-in%C3%A2-vitro
#3
Hai Li, Dahang Zhao, Shengjing Wang, Jing Ding, Li Zhao
It has been confirmed that bone morphogenetic protein-9 (BMP-9) promotes the differentiation of osteoblasts. However, the ways in which BMP‑9 exerts its effects on the differentiation of osteoclasts and bone resorption remain to be elucidated. The present study was designed to investigate the roles and the molecular mechanism of BMP‑9 on the proliferation and differentiation of osteoclast precursors in vitro. Mouse spleen macrophages (RAW 264.7 cells) were cultured in the presence of receptor activator for nuclear factor‑κb ligand (RANKL) in vitro...
November 2016: Molecular Medicine Reports
https://www.readbyqxmd.com/read/27720933/activation-of-the-pro-migratory-bone-morphogenetic-protein-receptor-1b-gene-in-human-mda-mb-468-triple-negative-breast-cancer-cells-that-over-express-cyp2j2
#4
Sarah E Allison, Yongjuan Chen, Nenad Petrovic, Stefanie Zimmermann, Bjoern Moosmann, Mirko Jansch, Pei H Cui, Colin R Dunstan, Peter I Mackenzie, Michael Murray
Secondary metastases are the leading cause of mortality in patients with breast cancer. Cytochrome P450 (CYP) 2J2 (CYP2J2) is upregulated in many human tumors and generates epoxyeicosanoids from arachidonic acid that promote tumorigenesis and metastasis, but at present there is little information on the genes that mediate these actions. In this study MDA-MB-468 breast cancer cells were stably transfected with CYP2J2 (MDA-2J2 cells) and Affymetrix microarray profiling was undertaken. We identified 182 genes that were differentially expressed in MDA-2J2 cells relative to control (MDA-CTL) cells (log[fold of control] ≥2)...
October 5, 2016: International Journal of Biochemistry & Cell Biology
https://www.readbyqxmd.com/read/27660075/hnf-4alpha-negatively-regulates-hepcidin-expression-through-bmpr1a-in-hepg2-cells
#5
Wencai Shi, Heyang Wang, Xuan Zheng, Xin Jiang, Zheng Xu, Hui Shen, Min Li
Hepcidin synthesis is reported to be inadequate according to the body iron store in patients with non-alcoholic fatty liver disease (NAFLD) undergoing hepatic iron overload (HIO). However, the underlying mechanisms remain unclear. We hypothesize that hepatocyte nuclear factor-4α (HNF-4α) may negatively regulate hepcidin expression and contribute to hepcidin deficiency in NAFLD patients. The effect of HNF-4α on hepcidin expression was observed by transfecting specific HNF-4α small interfering RNA (siRNA) or plasmids into HepG2 cells...
September 23, 2016: Biological Trace Element Research
https://www.readbyqxmd.com/read/27643272/sy-18-1-translational-research-in-pah
#6
Wook-Jin Chung
Pulmonary arterial hypertension (PAH) is a life-threatening disorder with a poor prognosis and causes pulmonary vascular remodeling accompanied with increased pulmonary arterial medial wall thickness and fibrosis, which leads to vascular and right ventricular (RV) dysfunction. Despite treatment with prostacyclin, endothelin antagonist, and phosphodiesterase-5 inhibitors the 1-year mortality rate of PAH still remains high. Recent registries, clinical trials, and basic researches have been increasing the knowledge of PAH and it would contribute to potential therapeutic strategies and better clinical outcome...
September 2016: Journal of Hypertension
https://www.readbyqxmd.com/read/27600293/inhibition-of-osteoblast-differentiation-by-aluminum-trichloride-exposure-is-associated-with-inhibition-of-bmp-2-smad-pathway-component-expression
#7
Xu Yang, Hui Huo, Chunyu Xiu, Miao Song, Yanfei Han, Yanfei Li, Yanzhu Zhu
Bone morphogenetic protein-2 (BMP-2)/Smad signaling pathway plays an important role in regulating osteoblast (OB) differentiation. OB differentiation is a key process of bone formation. Aluminum (Al) exposure inhibits bone formation and causes Al-induced bone disease. However, the mechanism is not fully understood. To investigate whether BMP-2/Smad signaling pathway is associated with OB differentiation in aluminum trichloride (AlCl3)-treated OBs, the primary rat OBs were cultured and exposed to 0 (control group, CG), 1/40 IC50 (low-dose group, LG), 1/20 IC50 (mid-dose group, MG), and 1/10 IC50 (high-dose group, HG) of AlCl3 for 24 h, respectively...
September 4, 2016: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/27552226/the-immunologic-properties-of-bone-morphogenic-protein-receptor-ib-positive-subpopulation-before-and-after-osteogenic-differentiation-in-mouse-dermis
#8
Jin-Guang He, Ting-Liang Wang, Tao Wang, Hua Xu, Yi Zhang, Jia-Sheng Dong
We have previously reported that human dermal bone morphogenic protein receptor (BMPR) IB positive subpopulation had a high osteogenic differentiation potential and may be a promising cell source for allogeneic bone tissue engineering. In this study, the immunologic properties of dermal BMPR-IB+ subpopulation before and after osteogenic differentiation were reported. The results confirmed that dermal BMPR-IB+ cells possessed a similar osteogenic differentiation potential with bone marrow mesenchymal stromal cells in a mouse model...
2016: PloS One
https://www.readbyqxmd.com/read/27537724/extensive-pulmonary-sarcoid-reaction-in-a-patient-with-bmpr-2-associated-idiopathic-pulmonary-arterial-hypertension
#9
Evelien A J E Braam, Marian J R Quanjel, Jolanda H G M Van Haren-Willems, Matthijs F M Van Oosterhout, Aryan Vink, Yvonne F Heijdra, Johanna M Kwakkel-van Erp
Pulmonary arterial hypertension is a progressive life-threatening disease characterized by vascular remodeling. There is evidence that varied immune mechanism play an important role in progression of pulmonary hypertension.  We describe a case of a 35-year-old woman with idiopathic pulmonary arterial hypertension (IPAH) and a novel BMPR2 mutation, who underwent a successful lung transplantation.  Extensive granulomatous inflammation was seen in the resected lungs. The granulomatous inflammation found in the histology supports  a sarcoid-like reaction due to pulmonary hypertension in the context of the BMPR2 mutation...
2016: Sarcoidosis, Vasculitis, and Diffuse Lung Diseases: Official Journal of WASOG
https://www.readbyqxmd.com/read/27430926/-bone-morphogenetic-protein-4-increases-canonical-transient-receptor-potential-protein-expression-by-activating-bone-morphogenetic-protein-receptor-%C3%A2-smad-signaling-pathways-in-pulmonary-arterial-smooth-muscle-cells
#10
X Y Li, P X Ran, J Wang
OBJECTIVE: To observe the effect of bone morphogenetic protein 4 (BMP4) on the Smad signaling pathway in rat distal pulmonary artery smooth muscle cells (PASMCs), and to explore the role of the transient receptor potential ion channel (TRPC) protein 1 and 6(TRPC1, 6) in rat distal PASMCs. METHODS: Distal pulmonary arteries were isolated from adult male Wistar rats(n=6, 280-300 g). The endothelium-denuded pulmonary artery tissue was digested using Collagenase and PASMCs were cultured...
July 2016: Chinese Journal of Tuberculosis and Respiratory Diseases
https://www.readbyqxmd.com/read/27429845/bmpr2-psmad1-5-signaling-pathway-regulates-runx2-expression-and-impacts-the-progression-of-dedifferentiated-chondrosarcoma
#11
Kang Yang, Xiao-Dong Tang, Wei Guo, Xiao-Long Xu, Ting-Ting Ren, Cong-Min Ren, Shi-Dong Wang, Xing Bao, Fan Zhang, Kun-Kun Sun
Bone morphogenetic protein receptors (BMPRs) are multifunctional proteins; they have indispensible roles in the process of BMP signaling. However, their function in dedifferentiated chondrosarcoma is uncertain. It has been reported that BMPR2 is associated with chondrosarcoma. Moreover, the detection of BMPR2 is more frequent in dedifferentiated chondrosarcomas (DDCS) than in conventional chondrosarcomas (CCS). BMPR2, phospho-SMAD1/5 (pSMAD1/5), and runt-related transcription factor 2 (RUNX2) expressions were found to be associated with the pathological grades of chondrosarcoma and could be a promising target of treatment outcome...
2016: American Journal of Cancer Research
https://www.readbyqxmd.com/read/27406972/an-investigation-of-bmp-7-mediated-alterations-to-bmp-signalling-components-in-human-tenocyte-like-cells
#12
Franka Klatte-Schulz, Gerry Giese, Christopher Differ, Susann Minkwitz, Karen Ruschke, Regina Puts, Petra Knaus, Britt Wildemann
The incidence of tendon re-tears post-surgery is an ever present complication. It is suggested that the application of biological factors, such as bone morphogenetic protein 7 (BMP-7), can reduce complication rates by promoting tenogenic characteristics in in vitro studies. However, there remains a dearth of information in regards to the mechanisms of BMP-7 signalling in tenocytes. Using primary human tenocyte-like cells (hTLCs) from the supraspinatus tendon the BMP-7 signalling pathway was investigated: induction of the BMP associated Smad pathway and non-Smad pathways (AKT, p38, ERK1/2 and JNK); alterations in gene expression of BMP-7 associated receptors, Smad pathway components, Smad target gene (ID1) and tenogenic marker scleraxis...
2016: Scientific Reports
https://www.readbyqxmd.com/read/27401963/mntbap-increases-bmpr-ii-expression-in-endothelial-cells-and-attenuates-vascular-inflammation
#13
Qian Zhou, Michaela Einert, Hannah Schmitt, Zhengguan Wang, Franziska Pankratz, Christoph B Olivier, Christoph Bode, James K Liao, Martin Moser
AIMS: The endothelium plays an important role during vascular inflammation. Previous data have demonstrated a high expression level of manganese-superoxide dismutase (MnSOD) in endothelial cells and suggested an important role of MnSOD in several cardiovascular diseases. Manganese (III) tetrakis (4-benzoic acid) porphyrin (MnTBAP) has been shown to mimic some of the effects of MnSOD and prevented the development of diabetes and obesity. However, its effect on vascular inflammation and the underlying mechanism is still unknown...
September 2016: Vascular Pharmacology
https://www.readbyqxmd.com/read/27196063/unveiling-the-interactions-among-bmpr-2-alk-1-and-5-htt-genes-in-the-pathophysiology-of-hape
#14
Zahara Ali, Mohammad Waseem, Rahul Kumar, Priyanka Pandey, Ghulam Mohammad, M A Qadar Pasha
CONTEXT: Few potential candidate genes coding for type I and II receptors of transforming growth factor beta signaling pathway and the serotonin transporter have been associated with pulmonary hypertension (PH). The latter being a phenotype for high altitude pulmonary edema (HAPE), these genes are hypothesized to be crucial markers to investigate under the hypobaric hypoxic environment of high altitude. AIMS: We hence aimed to investigate bone-morphogenetic protein-2 (BMP2), bone morphogenetic protein receptor type-II (BMPR-2), activin receptor-like kinase-1 (ALK-1), serotonin transporter (5-HTT) and serotonin (5-HT) for their contribution, individually/epistatically, to clinical endpoints by altering downstream signaling molecules...
August 22, 2016: Gene
https://www.readbyqxmd.com/read/27194944/partial-m%C3%A3-llerian-duct-retention-in-smad4-conditional-mutant-male-mice
#15
Fabrice G Petit, Chuxia Deng, Soazik P Jamin
Müllerian duct regression is a complex process which involves the AMH signalling pathway. We have previously demonstrated that besides AMH and its specific type II receptor (AMHRII), BMPR-IA and Smad5 are two essential factors implicated in this mechanism. Mothers against decapentaplegic homolog 4 (Smad4) is a transcription factor and the common Smad (co-Smad) involved in transforming growth factor beta (TGF-β) signalling pathway superfamily. Since Smad4 null mutants die early during gastrulation, we have inactivated Smad4 in the Müllerian duct mesenchyme...
2016: International Journal of Biological Sciences
https://www.readbyqxmd.com/read/27188586/bosentan-reverses-the-hypoxia-induced-downregulation-of-the-bone-morphogenetic-protein-signaling-in-pulmonary-artery-smooth-muscle-cells
#16
Hidekazu Maruyama, Céline Dewachter, Satoshi Sakai, Asmae Belhaj, Benoit Rondelet, Myriam Remmelink, Jean-Luc Vachiéry, Robert Naeije, Laurence Dewachter
AIMS: Pulmonary hypertension (PH) is a common complication of chronic hypoxic lung diseases. Bone morphogenetic protein (BMP) and endothelin-1 signaling pathways have been shown to be altered in hypoxic PH and to play crucial roles in the associated pulmonary artery remodeling. We, therefore, aimed to study the potential link between hypoxia and the alteration of BMP and endothelin-1 signaling observed in pulmonary artery smooth muscle cells (PA-SMCs) in hypoxic PH. MATERIALS AND METHODS: Human PA-SMCs were treated with hypoxia-mimetic agent cobalt chloride (CoCl2; 100μM), with or without pretreatment with a dual endothelin receptor antagonist bosentan (10μM)...
August 15, 2016: Life Sciences
https://www.readbyqxmd.com/read/27156155/magnesium-modification-up-regulates-the-bioactivity-of-bone-morphogenetic-protein-2-upon-calcium-phosphate-cement-via-enhanced-bmp-receptor-recognition-and-smad-signaling-pathway
#17
Sai Ding, Jing Zhang, Yu Tian, Baolin Huang, Yuan Yuan, Changsheng Liu
Efficient presentation of growth factors is one of the great challenges in tissue engineering. In living systems, bioactive factors exist in soluble as well as in matrix-bound forms, both of which play an integral role in regulating cell behaviors. Herein, effect of magnesium on osteogenic bioactivity of recombinant human bone morphogenetic protein-2 (rhBMP-2) was investigated systematically with a series of Mg modified calcium phosphate cements (xMCPCs, x means the content of magnesium phosphate cement wt%) as matrix model...
September 1, 2016: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/27045138/in-pulmonary-arterial-hypertension-reduced-bmpr2-promotes-endothelial-to-mesenchymal-transition-via-hmga1-and-its-target-slug
#18
Rachel K Hopper, Jan-Renier A J Moonen, Isabel Diebold, Aiqin Cao, Christopher J Rhodes, Nancy F Tojais, Jan K Hennigs, Mingxia Gu, Lingli Wang, Marlene Rabinovitch
BACKGROUND: We previously reported high-throughput RNA sequencing analyses that identified heightened expression of the chromatin architectural factor High Mobility Group AT-hook 1 (HMGA1) in pulmonary arterial endothelial cells (PAECs) from patients who had idiopathic pulmonary arterial hypertension (PAH) in comparison with controls. Because HMGA1 promotes epithelial-to-mesenchymal transition in cancer, we hypothesized that increased HMGA1 could induce transition of PAECs to a smooth muscle (SM)-like mesenchymal phenotype (endothelial-to-mesenchymal transition), explaining both dysregulation of PAEC function and possible cellular contribution to the occlusive remodeling that characterizes advanced idiopathic PAH...
May 3, 2016: Circulation
https://www.readbyqxmd.com/read/26988160/postnatal-expression-of-bone-morphogenetic-proteins-and-their-receptors-in-the-mouse-testis
#19
I M Ciller, S Ka Palanisamy, U A Ciller, J R McFarlane
TGF-beta superfamily members including bone morphogenetic proteins (BMPs) and their receptors (BMPR-1A, -1B and -2) have been shown to be important for reproductive function in both males and females, while information on the role of BMPs in males is limited. Functional studies on select BMPs and BMP receptors have demonstrated vital roles for these proteins in somatic and germ cell proliferation, steroidogenesis and overall fertility. In order to gain insight into the importance of these genes during postnatal reproductive development in males, our study was undertaken to specify the distribution of BMP and BMPR mRNA in male reproductive and steroidogenic tissues and quantify these genes in the testis using the mouse as our model...
March 15, 2016: Physiological Research
https://www.readbyqxmd.com/read/26975812/expression-of-tgf%C3%AE-family-signalling-components-in-ageing-cartilage-age-related-loss-of-tgf%C3%AE-and-bmp-receptors
#20
A van Caam, W Madej, E Thijssen, A Garcia de Vinuesa, W van den Berg, M-J Goumans, P Ten Dijke, E Blaney Davidson, P M van der Kraan
OBJECTIVE: Ageing is the main risk factor for osteoarthritis (OA). We investigated if expression of transforming growth factor β (TGFβ)-family components, a family which is crucial for the maintenance of healthy articular cartilage, is altered during ageing in cartilage. Moreover, we investigated the functional significance of selected age-related changes. DESIGN: Age-related changes in expression of TGFβ-family members were analysed by quantitative PCR in healthy articular cartilage obtained from 42 cows (age: ¾-10 years)...
July 2016: Osteoarthritis and Cartilage
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