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https://www.readbyqxmd.com/read/28821477/tgf-%C3%AE-induced-intracellular-pai-1-is-responsible-for-retaining-hematopoietic-stem-cells-in-the-niche
#1
Takashi Yahata, Abd Aziz Ibrahim, Yukari Muguruma, Mesut Eren, Alexander M Shaffer, Nobuo Watanabe, Satoko Kaneko, Tetsuo Nakabayashi, Takashi Dan, Noriaki Hirayama, Douglas E Vaughan, Toshio Miyata, Kiyoshi Ando
Hematopoietic stem and progenitor cells (HSPCs) reside in the supportive stromal niche in bone marrow (BM); when needed, however, they are rapidly mobilized into the circulation, suggesting that HSPCs are intrinsically highly motile but are usually stayed in the niche. We questioned what determines the motility of HSPCs. Here we show that transforming growth factor (TGF)-β-induced intracellular plasminogen activator inhibitor (PAI)-1 activation is responsible for keeping HSPCs in the BM niche. We found that the expression of PAI-1, a downstream target of TGF-β-signaling, was selectively augmented in niche-residing HSPCs...
August 18, 2017: Blood
https://www.readbyqxmd.com/read/28819126/targeted-blockade-of-tgf-%C3%AE-and-il-6-jak2-stat3-pathways-inhibits-lung-cancer-growth-promoted-by-bone-marrow-derived-myofibroblasts
#2
Jindong Shi, Jingjing Feng, Juan Xie, Zhoufang Mei, Tianyun Shi, Shengmei Wang, Yong Du, Gong Yang, Yougen Wu, Xiaojiao Cheng, Shanqun Li, Liming Zhu, Chung S Yang, Shuiping Tu, Zhijun Jie
To investigate the role of TGF-β and IL-6 in myofibroblasts (MFs) - lung cancer cell interactions, lung cancer cells (Lewis and CTM-167 cell lines) were stimulated by IL-6, MF-conditioned medium (MF-CM) or MFs, with or without TGF-β signaling inhibitor - SB431542 and/or JAK2/STAT3 inhibitor - JSI-124. MFs were stimulated by TGF-β, cancer cell-CM or cancer cells, with or without SB431542 and JSI-124. Cell proliferation, the levels of cytokines, expression of mRNA and protein were determined. Mice bearing xenograft tumors were intraperitoneally treated with SB431542 or JSI-124 and monitored for up to 45 days...
August 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28817810/tgf-%C3%AE-1-is-involved-in-vitamin-d-induced-chondrogenic-differentiation-of-bone-marrow-derived-mesenchymal-stem-cells-by-regulating-the-erk-jnk-pathway
#3
Xiaorui Jiang, Botao Huang, Huiying Yang, Guishi Li, Chunlei Zhang, Guangshi Yang, Feng Lin, Guodong Lin
BACKGROUND/AIMS: Osteoarthritis (OA) is characterized by degradation of cartilage, sole cell type of which is chondrocytes. Bone marrow-derived mesenchymal stem cells (BMSCs) possess multipotency and can be directionally differentiated into chondrocytes under stimulation. This study was aimed to explore the possible roles of vitamin D and transforming growth factor-β1 (TGF-β1) in the chondrogenic differentiation of BMSCs. METHODS: BMSCs were isolated from femurs and tibias of rats and characterized by flow cytometry...
August 16, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28815333/comparison-of-different-culture-conditions-for-smooth-muscle-cell-differentiation-of-human-umbilical-cord-vein-cd146-perivascular-cells
#4
Beyza Gökçinar-Yagci, Betül Çelebi-Saltik
Pericytes are CD146+ perivascular cells (PCs) that have multipotential differentiation capacity as mesenchymal stem cells. Beside their crucial roles in vascular development and blood flow regulation, they have ability to differentiate into vascular cell types in vivo. These properties make pericytes preferred cells in the field of vascular tissue engineering. Culture medium for in vitro differentiation of pericytes to vascular smooth muscle cells (SMCs) has not been defined yet. The aim of this study is to try different culture media for SMC differentiation of CD146+ PCs...
August 16, 2017: Cell and Tissue Banking
https://www.readbyqxmd.com/read/28812969/functional-expression-of-bmp7-receptors-in-oral-epithelial-cells-interleukin-17f-production-in-response-to-bmp7
#5
Kensuke Nishio, Yasumasa Ozawa, Hisanori Ito, Takashi Kifune, Tatsuya Narita, Toshimitsu Iinuma, Nobuhito Gionhaku, Masatake Asano
BACKGROUND: Bone morphogenetic proteins (BMPs) are members of the transforming growth factor-β (TGF-β) superfamily. Recently, BMP7 has been demonstrated to be produced by salivary glands and contribute to embryonic branching in mice. The BMP7 in saliva is thought to be delivered to the oral cavity and is expected to contact with stratified squamous epithelial cells which line the surface of oral mucosa. In this study, we attempted to investigate the effects of BMP7 on oral epithelial cells...
October 2017: Journal of Receptor and Signal Transduction Research
https://www.readbyqxmd.com/read/28811709/bone-marrow-derived-monocyte-infusion-improves-hepatic-fibrosis-by-decreasing-osteopontin-tgf-%C3%AE-1-il-13-and-oxidative-stress
#6
Veruska Cintia Alexandrino de Souza, Thiago Almeida Pereira, Valéria Wanderley Teixeira, Helotonio Carvalho, Maria Carolina Accioly Brelaz de Castro, Carolline Guimarães D'assunção, Andréia Ferreira de Barros, Camila Lima Carvalho, Virgínia Maria Barros de Lorena, Vláudia Maria Assis Costa, Álvaro Aguiar Coelho Teixeira, Regina Celia Bressan Queiroz Figueiredo, Sheilla Andrade de Oliveira
AIM: To evaluate the therapeutic effects of bone marrow-derived CD11b(+)CD14(+) monocytes in a murine model of chronic liver damage. METHODS: Chronic liver damage was induced in C57BL/6 mice by administration of carbon tetrachloride and ethanol for 6 mo. Bone marrow-derived monocytes isolated by immunomagnetic separation were used for therapy. The cell transplantation effects were evaluated by morphometry, biochemical assessment, immunohistochemistry and enzyme-linked immunosorbent assay...
July 28, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28810875/role-of-iqgap3-in-metastasis-and-epithelial-mesenchymal-transition-in-human-hepatocellular-carcinoma
#7
Yongjie Shi, Nan Qin, Qiang Zhou, Yanqiu Chen, Sicong Huang, Bo Chen, Gang Shen, Hongyun Jia
BACKGROUND: Hepatocellular carcinoma (HCC) is one of the most lethal cancers worldwide owing to its high rates of metastasis and recurrence. The oncogene IQ motif-containing GTPase activating protein 3 (IQGAP3) is ubiquitously overexpressed in several human cancers, including liver, ovary, lung, large intestine, gastric, bone marrow, and breast malignancies and is involved in the invasion and metastasis of cancer cells. Therefore, we aimed to determine the biological role and molecular mechanism of IQGAP3 in HCC...
August 15, 2017: Journal of Translational Medicine
https://www.readbyqxmd.com/read/28810621/effect-of-isopsoralen-on-smad7-in-osteoblastic-mc3t3-e1-cells
#8
Huicun Zhang, Na Ta
The primary pathological change in postmenopausal osteoporosis (PM-OP) is bone collagen loss caused by estrogen depletion. Osteoblasts synthesize type I collagen, which composes the organic matrix of bone. Although isopsoralen stimulates osteoblastic cell proliferation and differentiation, transforming growth factor (TGF)-β1 is an important cell signaling factor for stimulating collagen synthesis. To explore the association between isopsoralen and the synthesis of collagen in vitro, the molecular and biological association between isopsoralen and TGF-β signaling was examined...
August 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28805484/disparate-phospho-smad2-levels-in-advanced-type-2-diabetes-patients-with-diabetic-nephropathy-and-early-experimental-db-db-mouse-model
#9
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
Uncontrolled activation of transforming growth factor beta (TGF-β) family members is hypothesized to participate in type 2 diabetes (T2D) dependent diabetic nephropathy (DN). We evaluated and compared downstream activation of the Smad2-signaling pathway in kidney samples from T2D patients to kidneys from the T2D model of leptin receptor deficient db/db mouse. Furthermore, expression of TGF-β family members was evaluated to elucidate molecular mechanisms in the mouse model. Kidney samples from patients with advanced stages of DN showed elevated pSmad2 staining whereas db/db mouse kidneys surprisingly showed a decrease in pSmad2 in the tubular compartment...
November 2017: Renal Failure
https://www.readbyqxmd.com/read/28802000/pmepa1-induced-by-rankl-p38-mapk-pathway-has-a-novel-role-in-osteoclastogenesis
#10
Noboru Funakubo, Xianghe Xu, Toshio Kukita, Seiji Nakamura, Hiroshi Miyamoto, Akiko Kukita
Osteoclasts are multinucleated cells formed by fusion of preosteoclasts (POCs) derived from cells of the monocyte/macrophage lineage. We have reported a culture system that supports the formation of POCs from stroma-depleted rat bone marrow cells. Global gene expression analysis of this culture system identified genes highly expressed in POCs. Here, we have analyzed the expression and function of one of these highly expressed genes, prostate transmembrane protein androgen induced 1 (Pmepa1), a target of TGF-β and binds Nedd4 ubiquitin ligase, which plays a role in intracellular trafficking...
August 12, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28792150/immune-tolerance-of-human-dental-pulp-derived-mesenchymal-stem-cells-mediated-by-cd4%C3%A2-%C2%BAcd25%C3%A2-%C2%BAfoxp3%C3%A2-%C2%BA-regulatory-t-cells-and-induced-by-tgf-%C3%AE-1-and-il-10
#11
Jong Won Hong, Jung Hyun Lim, Chooryung J Chung, Tae Jo Kang, Tae Yeon Kim, Young Seok Kim, Tae Suk Roh, Dae Hyun Lew
PURPOSE: Most studies on immune tolerance of mesenchymal stem cells (MSCs) have been performed using MSCs derived from bone marrow, cord blood, or adipose tissue. MSCs also exist in the craniofacial area, specifically in teeth. The purpose of this study was to evaluate the mechanisms of immune tolerance of dental pulp-derived MSC (DP-MSC) in vitro and in vivo. MATERIALS AND METHODS: We isolated DP-MSCs from human dental pulp and co-cultured them with CD4⁺ T-cells...
September 2017: Yonsei Medical Journal
https://www.readbyqxmd.com/read/28782519/identification-of-novel-alk2-inhibitors-and-their-effect-on-cancer-cells
#12
Minsung Kim, Okran Choi, Suhkneung Pyo, Sang Un Choi, Chi Hoon Park
Bone morphogenetic protein 9 (BMP9), a member of the TGF-β superfamily, is considered a regulator of glucose homeostasis as well as a neuronal differentiation factor. BMP9 induces phosphorylation of Smad1/5 through activin receptor-like kinase 1 and 2 (ALK1 and ALK2). Recently, many studies have shown that BMP9 contributes to tumorigenesis, and aberrant ALK2 expression is involved in many diseases. To investigate the role of BMP9-ALK2 signaling in cancer cells, we used TF-1 cells that require granulocyte-macrophage colony-stimulating factor (GM-CSF) for cell proliferation...
August 3, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28765945/platelet-rich-plasma-exhibits-beneficial-effects-for-rheumatoid-arthritis-mice-by-suppressing-inflammatory-factors
#13
Shichao Tong, Changqing Zhang, Ji Liu
Platelet-rich plasma (PRP) is a multifunctional blood product containing highly concentrated platelets, and various cell growth factors which promote cell proliferation and differentiation. PRP exhibited benefits in injurious articular cartilage repair and the removal of inflammatory factors in clinical studies. Rheumatoid arthritis (RA) is an autoimmune disease manifesting primarily as inflammatory arthritis, which is associated with notable morbidity in humans. In the present study, the therapeutic effects and primary mechanism of PRP on a type II collagen‑induced arthritis (CIA) mouse model was investigated...
July 27, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28764194/association-between-single-nucleotide-polymorphisms-of-smad3-and-bmp5-with-the-risk-of-knee-osteoarthritis
#14
Amar Chandra Sharma, Rajeshwar Nath Srivastava, Sudeepti Ratan Srivastava, Devendra Parmar, Ajai Singh, Saloni Raj
INTRODUCTION: The role of genetic factors influencing osteoarthritis (OA) susceptibility is well documented and several candidate genes have been identified to be associated with it. Among these genes are Bone Morphogenetic Protein 5 (BMP5) and Smad family member 3 (SMAD3), all involved in Transforming Growth Factor (TGF) signaling pathway. The knee is the commonly affected joint, and knee OA has an especially high prevalence in Asian population. AIM: To investigate associations between Single Nucleotide Polymorphisms (SNPs) rs12901499 in SMAD3 and rs921126 in the BMP5 gene with knee OA susceptibility in and around Lucknow, Uttar Pradesh, India...
June 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28763452/pathogen-reduction-through-additive-free-short-wave-uv-light-irradiation-retains-the-optimal-efficacy-of-human-platelet-lysate-for-the-expansion-of-human-bone-marrow-mesenchymal-stem-cells
#15
Sabrina Viau, Lucie Chabrand, Sandy Eap, Judith Lorant, Karl Rouger, Francis Goudaliez, Chryslain Sumian, Bruno Delorme
BACKGROUND: We recently developed and characterized a standardized and clinical grade human Platelet Lysate (hPL) that constitutes an advantageous substitute for fetal bovine serum (FBS) for human mesenchymal stem cell (hMSC) expansion required in cell therapy procedures, avoiding xenogenic risks (virological and immunological) and ethical issues. Because of the progressive use of pathogen-reduced (PR) labile blood components, and the requirement of ensuring the viral safety of raw materials for cell therapy products, we evaluated the impact of the novel procedure known as THERAFLEX UV-Platelets for pathogen reduction on hPL quality (growth factors content) and efficacy (as a medium supplement for hMSC expansion)...
2017: PloS One
https://www.readbyqxmd.com/read/28759565/low-doses-of-cholera-toxin-and-its-mediator-camp-induce-ctla-2-secretion-by-dendritic-cells-to-enhance-regulatory-t-cell-conversion
#16
Cinthia Silva-Vilches, Katrien Pletinckx, Miriam Lohnert, Vladimir Pavlovic, Diyaaeldin Ashour, Vini John, Emilia Vendelova, Susanne Kneitz, Jie Zhou, Rena Chen, Thomas Reinheckel, Thomas D Mueller, Jochen Bodem, Manfred B Lutz
Immature or semi-mature dendritic cells (DCs) represent tolerogenic maturation stages that can convert naive T cells into Foxp3+ induced regulatory T cells (iTreg). Here we found that murine bone marrow-derived DCs (BM-DCs) treated with cholera toxin (CT) matured by up-regulating MHC-II and costimulatory molecules using either high or low doses of CT (CThi, CTlo) or with cAMP, a known mediator CT signals. However, all three conditions also induced mRNA of both isoforms of the tolerogenic molecule cytotoxic T lymphocyte antigen 2 (CTLA-2α and CTLA-2β)...
2017: PloS One
https://www.readbyqxmd.com/read/28758906/activin-a-enhances-mtor-signaling-to-promote-aberrant-chondrogenesis-in-fibrodysplasia-ossificans-progressiva
#17
Kyosuke Hino, Kazuhiko Horigome, Megumi Nishio, Shingo Komura, Sanae Nagata, Chengzhu Zhao, Yonghui Jin, Koichi Kawakami, Yasuhiro Yamada, Akira Ohta, Junya Toguchida, Makoto Ikeya
Fibrodysplasia ossificans progressiva (FOP) is a rare and intractable disease characterized by extraskeletal bone formation through endochondral ossification. Patients with FOP harbor point mutations in ACVR1, a type I receptor for BMPs. Although mutated ACVR1 (FOP-ACVR1) has been shown to render hyperactivity in BMP signaling, we and others have uncovered a mechanism by which FOP-ACVR1 mistransduces BMP signaling in response to Activin-A, a molecule that normally transduces TGF-β signaling. Although Activin-A evokes enhanced chondrogenesis in vitro and heterotopic ossification (HO) in vivo, the underlying mechanisms have yet to be revealed...
July 31, 2017: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/28754575/heterotopic-bone-induction-via-bmp-signaling-potential-therapeutic-targets-for-fibrodysplasia-ossificans-progressiva
#18
Takenobu Katagiri, Sho Tsukamoto, Mai Kuratani
More than 50years ago, Marshal M. Urist detected "heterotopic bone-inducing activity" in demineralized bone matrix. This unique activity was referred to as "bone morphogenetic protein (BMP)" because it was sensitive to trypsin digestion. Purification of the bone-inducing activity from demineralized bone matrix using a bone-inducing assay in vivo indicated that the original "BMP" consisted of a mixture of new members of the transforming growth factor-β (TGF-β) family. The establishment of new in vitro assay systems that reflect the bone-inducing activity of BMPs in vivo have revealed the functional receptors and downstream effectors of BMPs...
July 25, 2017: Bone
https://www.readbyqxmd.com/read/28751863/bone-morphogenetic-protein-9-protects-against-neonatal-hyperoxia-induced-impairment-of-alveolarization-and-pulmonary-inflammation
#19
Xueyu Chen, Mar Orriols, Frans J Walther, El Houari Laghmani, Annemarie M Hoogeboom, Anne C B Hogen-Esch, Pieter S Hiemstra, Gert Folkerts, Marie-José T H Goumans, Peter Ten Dijke, Nicholas W Morrell, Gerry T M Wagenaar
Aim: Effective treatment of premature infants with bronchopulmonary dysplasia (BPD) is lacking. We hypothesize that bone morphogenetic protein 9 (BMP9), a ligand of the TGF-β family that binds to the activin receptor-like kinase 1 (ALK1)-BMP receptor type 2 (BMPR2) receptor complex, may be a novel therapeutic option for BPD. Therefore, we investigated the cardiopulmonary effects of BMP9 in neonatal Wistar rats with hyperoxia-induced BPD. Methods: Directly after birth Wistar rat pups were exposed to 100% oxygen for 10 days...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28745432/an-ectosteric-inhibitor-of-cathepsin-k-inhibits-bone-resorption-in-ovariectomized-mice
#20
Preety Panwar, Liming Xue, Kent Søe, Kamini Srivastava, Simon Law, Jean-Marie Delaisse, Dieter Brömme
The potent cathepsin K (CatK) inhibitor, Tanshinone IIA Sulfonic Sodium (T06), was tested for its in vitro and in vivo antiresorptive activities. T06 binds in an ectosteric site of CatK remote from its active site and selectively inhibits collagen degradation with an IC50 value of 2.7±0.2 μM (CatK:T06 molar ratio of 1:5). However, it does not suppress fluorogenic peptide cleavage and gelatinolysis at a 2,500-fold molar excess. Contrary to active site-directed CatK inhibitors, such as odanacatib, T06 suppresses bone resorption in both human and mouse osteoclasts equally well (IC50 value for human and mouse osteoclasts: 237±60 nM and 245±55 nM, respectively) and its antiresorptive activity is fully reversible in both cell types...
July 26, 2017: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
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