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https://www.readbyqxmd.com/read/27912208/smad-nuclear-interacting-protein-1-acts-as-a-protective-regulator-of-pressure-overload-induced-pathological-cardiac-hypertrophy
#1
Yu-Yan Lu, Da-Chun Xu, Yi-Fan Zhao, Guo-Fu Zhu, Meng-Yun Zhu, Wei-Jing Liu, Xue-Jing Yu, Wei Chen, Zheng Liu, Ya-Wei Xu
BACKGROUND: Smad nuclear interacting protein 1 (SNIP1) plays a critical role in cell proliferation, transformation of embryonic fibroblasts, and immune regulation. However, the role of SNIP1 in cardiac hypertrophy remains unclear. METHODS AND RESULTS: Here we examined the role of SNIP1 in pressure overload-induced cardiac hypertrophy and its mechanisms. Our results demonstrated that SNIP1 expression was downregulated in human dilated cardiomyopathic hearts, aortic banding-induced mice hearts, and angiotensin II-treated cardiomyocytes...
October 26, 2016: Journal of the American Heart Association
https://www.readbyqxmd.com/read/27911728/modulation-of-bmp-signalling-by-integrins
#2
REVIEW
Hilary L Ashe
The bone morphogenetic protein (BMP) pathway is a major conserved signalling pathway with diverse roles in development and homeostasis. Given that cells exist in three-dimensional environments, one important area is to understand how the BMP pathway operates within such complex cellular environments. The extracellular matrix contains information regarding tissue architecture and its mechanical properties that is transmitted to the cell via integrin receptors. In this review, I describe various examples of modulation of the BMP pathway by integrins...
October 15, 2016: Biochemical Society Transactions
https://www.readbyqxmd.com/read/27909410/mechanosensitive-molecular-networks-involved-in-transducing-resistance-exercise-signals-into-muscle-protein-accretion
#3
REVIEW
Emil Rindom, Kristian Vissing
Loss of skeletal muscle myofibrillar protein with disease and/or inactivity can severely deteriorate muscle strength and function. Strategies to counteract wasting of muscle myofibrillar protein are therefore desirable and invite for considerations on the potential superiority of specific modes of resistance exercise and/or the adequacy of low load resistance exercise regimens as well as underlying mechanisms. In this regard, delineation of the potentially mechanosensitive molecular mechanisms underlying muscle protein synthesis (MPS), may contribute to an understanding on how differentiated resistance exercise can transduce a mechanical signal into stimulation of muscle accretion...
2016: Frontiers in Physiology
https://www.readbyqxmd.com/read/27908935/posttranslational-regulation-of-smads
#4
REVIEW
Pinglong Xu, Xia Lin, Xin-Hua Feng
Transforming growth factor β (TGF-β) family signaling dictates highly complex programs of gene expression responses, which are extensively regulated at multiple levels and vary depending on the physiological context. The formation, activation, and destruction of two major functional complexes in the TGF-β signaling pathway (i.e., the TGF-β receptor complexes and the Smad complexes that act as central mediators of TGF-β signaling) are direct targets for posttranslational regulation. Dysfunction of these complexes often leads or contributes to pathogenesis in cancer and fibrosis and in cardiovascular, and autoimmune diseases...
December 1, 2016: Cold Spring Harbor Perspectives in Biology
https://www.readbyqxmd.com/read/27906099/p311-induces-the-transdifferentiation-of-epidermal-stem-cells-to-myofibroblast-like-cells-by-stimulating-transforming-growth-factor-%C3%AE-1-expression
#5
Haisheng Li, Zhihui Yao, Weifeng He, Hongyan Gao, Yang Bai, Sisi Yang, Lu Zhang, Rixing Zhan, Jianglin Tan, Junyi Zhou, Masao Takata, Jun Wu, Gaoxing Luo
BACKGROUND: Epithelial to mesenchymal transition, especially to myofibroblasts, plays an important role in wound healing, fibrosis, and carcinogenesis. Epidermal stem cells (EpSCs) are responsible for epidermal renewal and wound re-epithelialization. However, it remains unclear whether and how EpSCs transdifferentiate into myofibroblasts or myofibroblast-like cells (MFLCs). Here, we provide the first evidence showing that P311 induces EpSC to MFLC transdifferentiation (EpMyT) via TGFβ1/Smad signaling...
December 1, 2016: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/27906049/smad-dependent-mechanisms-of-inflammatory-bone-destruction
#6
REVIEW
Michelle Fennen, Thomas Pap, Berno Dankbar
Homeostatic bone remodelling becomes disturbed in a variety of pathologic conditions that affect the skeleton, including inflammatory diseases. Rheumatoid arthritis is the prototype of an inflammatory arthritis characterised by chronic inflammation, progressive cartilage destruction and focal bone erosions and is a prime example for a disease with disturbed bone homeostasis. The inflammatory milieu favours the recruitment and activation of osteoclasts, which have been found to be the cells that are primarily responsible for bone erosions in many animal models of inflammatory arthritis...
December 1, 2016: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/27905054/crosstalk-between-shh-and-stemness-state-signaling-pathways-in-esophageal-squamous-cell-carcinoma
#7
Maryam Najafi, Mohammad Reza Abbaszadegan, Abolfazl Rad, Mahtab Dastpak, Samaneh Boroumand-Noughabi, Mohammad Mahdi Forghanifard
The expression of GLI1 as a downstream gene of sonic hedgehog (Hh) pathway, studied in a variety of cancers including esophageal squamous cell carcinoma (ESCC). However, the interaction of Hh with other developmental pathways needs to be elucidated. In this study, we aimed to investigate the correlation of GLI1 expression with transcription factors (TFs) of stem cell signaling pathways, and their association with clinico-pathological data of ESCC. Using real-time PCR, we assessed the expression of GLI1 mRNA in 49 ESCC patients, and analyzed the correlation between GLI1 and selected TFs...
November 30, 2016: Journal of Cell Communication and Signaling
https://www.readbyqxmd.com/read/27903972/gdf15-contributes-to-radioresistance-and-cancer-stemness-of-head-and-neck-cancer-by-regulating-cellular-reactive-oxygen-species-via-a-smad-associated-signaling-pathway
#8
Yan-Liang Li, Joseph T Chang, Li-Yu Lee, Kang-Hsing Fan, Ya-Ching Lu, Yi-Chen Li, Chang-Hsu Chiang, Guo-Rung You, Hsin-Ying Chen, Ann-Joy Cheng
Radiotherapy is an integral part for the treatment of head and neck cancer (HNC), while radioresistance is a major cause leads to treatment failure. GDF15, a member of the TGF-β superfamily, is hypothesized to participate in various types of homeostasis. However, the potential role of this molecule in regulation of radiosensitivity remains unclear. In this study, we demonstrated that GDF15 contributed to radioresistance of HNC, as determined by both gain- and lost-of-functional experiments. These results were achieved by the induction of mitochondrial membrane potential and suppression of intracellular reactive oxygen species (ROS)...
November 26, 2016: Oncotarget
https://www.readbyqxmd.com/read/27899064/gdf5-mediated-enhancement-of-chondrocyte-phenotype-is-inhibited-by-heparin-implication-for-the-use-of-heparin-in-the-clinic-and-in-tissue-engineering-applications
#9
Bethanie Imogen Ayerst, Raymond A A Smith, Victor Nurcombe, Anthony J Day, Catherine L R Merry, Simon Cool
The highly sulfated glycosaminoglycan (GAG) heparin is widely used in the clinic as an anticoagulant, and researchers are now using it to enhance stem cell expansion/ differentiation protocols, as well as to improve the delivery of growth factors for tissue engineering strategies. Growth differentiation factor 5 (GDF5) belongs to the bone morphogenetic protein family of proteins and is vital for skeletal formation, however, its interaction with heparin and heparan sulfate (HS) has not been studied. We identify GDF5 as a novel heparin/ HS-binding protein, and show that HS proteoglycans are vital in localizing GDF5 to the cell surface...
November 29, 2016: Tissue Engineering. Part A
https://www.readbyqxmd.com/read/27898661/methyl-cpg-binding-domain-3-inhibits-epithelial-mesenchymal-transition-in-pancreatic-cancer-cells-via-tgf-%C3%AE-smad-signalling
#10
Min Xu, Junbo He, Jie Li, Wen Feng, Hailang Zhou, Hong Wei, Meng Zhou, Ying Lu, Jian Zeng, Wanxin Peng, Fengyi Du, Aihua Gong
BACKGROUND: Methyl-CpG-binding domain 3 (MBD3) is an aberrant expression in human malignancies. However, the role of MBD3 in pancreatic cancer progression remains to be clarified. In this study, we investigated the effects of MBD3 on the epithelial-mesenchymal transition (EMT), and the underlying mechanism in pancreatic cancer cells. METHODS: The abilities of migration and invasion were examined by transwell and BD Matrigel invasion assays. EMT and TGF-β/Smad signalling were evaluated...
November 29, 2016: British Journal of Cancer
https://www.readbyqxmd.com/read/27898339/dietary-phytochemicals-for-possible-preventive-and-therapeutic-option-of-uterine-fibroids-signaling-pathways-as-target
#11
REVIEW
Md Soriful Islam, James H Segars, Mario Castellucci, Pasquapina Ciarmela
A growing interest has emerged on dietary phytochemicals to control diverse pathological conditions. Unfortunately, dietary phytochemical research in uterine fibroids is still under construction. Uterine fibroids/leiomyomas are benign tumors developing from the myometrium of the uterus in premenopausal women. They may occur in more than 70% of women, and approximately 25% of women show clinically significant symptoms. These include heavy and prolonged menstrual bleeding, pelvic pressure (urinary frequency, incontinence, and difficulty with urination), pelvic pain, pelvic mass, infertility, and reproductive dysfunction...
October 20, 2016: Pharmacological Reports: PR
https://www.readbyqxmd.com/read/27895584/induced-pluripotent-stem-cells-inhibit-bleomycin-induced-pulmonary-fibrosis-in-mice-through-suppressing-tgf-%C3%AE-1-smad-mediated-epithelial-to-mesenchymal-transition
#12
Yan Zhou, Zhong He, Yuan Gao, Rui Zheng, Xiaoye Zhang, Li Zhao, Mingqi Tan
Pulmonary fibrosis is a progressive and irreversible fibrotic lung disorder with high mortality and few treatment options. Recently, induced pluripotent stem (iPS) cells have been considered as an ideal resource for stem cell-based therapy. Although, an earlier study demonstrated the therapeutic effect of iPS cells on pulmonary fibrosis, the exact mechanisms remain obscure. The present study investigated the effects of iPS cells on inflammatory responses, transforming growth factor (TGF)-β1 signaling pathway, and epithelial to mesenchymal transition (EMT) during bleomycin (BLM)-induced lung fibrosis...
2016: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/27893708/tgf-%C3%AE-upregulates-the-translation-of-usp15-via-the-pi3k-akt-pathway-to-promote-p53-stability
#13
W-T Liu, K-Y Huang, M-C Lu, H-L Huang, C-Y Chen, Y-L Cheng, H-C Yu, S-Q Liu, N-S Lai, H-B Huang
Crosstalk between transforming growth factor beta (TGF-β) signaling and p53 has a critical role in cancer progression. TGF-β signals via Smad and non-Smad pathways. Under normal conditions, wild-type p53 forms a complex with Smad2/3 and co-activates transcription of a variety of tumor suppressor genes, resulting in tumor suppressive effects. Thus, p53 stability is essential in progression of tumor suppressive responses mediated by TGF-β signaling. However, it remains unknown whether p53 stability is regulated by TGF-β...
November 28, 2016: Oncogene
https://www.readbyqxmd.com/read/27892764/stat3-mediated-smad3-activation-underlies-oncostatin-m-induced-senescence
#14
Benjamin L Bryson, Damian J Junk, Rocky Cipriano, Mark W Jackson
Cytokines in the developing tumor microenvironment (TME) can drive transformation and subsequent progression towards metastasis. Elevated levels of the Interleukin-6 (IL-6) family cytokine Oncostatin M (OSM) in the breast TME correlate with aggressive, metastatic cancers, increased tumor recurrence, and poor patient prognosis. Paradoxically, OSM engages a tumor-suppressive, Signal Transducer and Activator of Transcription 3 (STAT3)-dependent senescence response in normal and non-transformed human mammary epithelial cells (HMEC)...
November 28, 2016: Cell Cycle
https://www.readbyqxmd.com/read/27890611/histone-methyltransferase-setdb1-is-indispensable-for-meckel-s-cartilage-development
#15
Kohei Yahiro, Norihisa Higashihori, Keiji Moriyama
The histone methyltransferase Setdb1 represses gene expression by catalyzing lysine 9 of histone H3 trimethylation. Given that the conventional knockout of Setdb1 is embryo-lethal at the implantation stage, its role in craniofacial development is poorly understood. Here, we investigated the role of Setdb1, using conditional knockout mice-in which Setdb1 was deleted in the Meckel's cartilage (Setdb1 CKO)-and the mouse chondrogenic cell line ATDC5-in which Setdb1 was inhibited by siRNA. Deletion of Setdb1 in Meckel's cartilage, the supportive tissue in the embryonic mandible, led to its enlargement, instead of the degeneration that normally occurs...
November 24, 2016: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/27889572/smad-about-hcv-cell-entry-and-pathogenesis-of-liver-disease
#16
EDITORIAL
Che C Colpitts, Thomas F Baumert
No abstract text is available yet for this article.
November 23, 2016: Gastroenterology
https://www.readbyqxmd.com/read/27889317/the-p53-family-coordinates-wnt-and-nodal-inputs-in-mesendodermal-differentiation-of-embryonic-stem-cells
#17
Qiong Wang, Yilong Zou, Sonja Nowotschin, Sang Yong Kim, Qing V Li, Chew-Li Soh, Jie Su, Chao Zhang, Weiping Shu, Qiaoran Xi, Danwei Huangfu, Anna-Katerina Hadjantonakis, Joan Massagué
In this study, we outline a regulatory network that involves the p53 tumor suppressor family and the Wnt pathway acting together with the TGF-β pathway in mesendodermal differentiation of mouse and human embryonic stem cells. Knockout of all three members, p53, p63, and p73, shows that the p53 family is essential for mesendoderm specification during exit from pluripotency in embryos and in culture. Wnt3 and its receptor Fzd1 are direct p53 family target genes in this context, and induction of Wnt signaling by p53 is critical for activation of mesendodermal differentiation genes...
November 9, 2016: Cell Stem Cell
https://www.readbyqxmd.com/read/27881603/a-protective-role-of-il-37-in-cancer-a-new-hope-for-cancer-patients
#18
REVIEW
Ayoub Abulkhir, Suzanne Samarani, Devendra Amre, Michel Duval, Elie Haddad, Daniel Sinnett, Jean-Marie Leclerc, Caroline Diorio, Ali Ahmad
IL-37 is a cytokine belonging to the IL-1 family. Although discovered in silico in 2000, significant advances in the understanding of its biology were made only in recent years. It is a member of the family with potent anti-inflammatory and immunosuppressive properties. It is produced as a precursor without a classic signal peptide. The precursor is cleaved into mature form in the cytoplasm by caspase-1. A small fraction of the cleaved IL-37 binds SMAD-3, translocates to the nucleus, and suppresses transcription of several proinflammatory genes...
November 23, 2016: Journal of Leukocyte Biology
https://www.readbyqxmd.com/read/27881195/the-involvement-of-runx2-and-sparc-genes-in-the-bacterial-chondronecrosis-with-osteomyelitis-in-broilers
#19
E Paludo, A M G Ibelli, J O Peixoto, F C Tavernari, C A V Lima-Rosa, J R C Pandolfi, M C Ledur
Economic losses due to an increase of leg disorders in broilers have become a major concern of the poultry industry. Despite the efforts to reduce skeletal abnormalities in chickens, insufficient progress has been made. Bacterial chondronecrosis with osteomyelitis (BCO) is one of the main disorders that affect bone integrity in broilers. However, the genetic pathways and genes involved in most bone problems, including BCO, remains unclear. In this study, femoral samples from male broilers with 45 days of age affected or not with BCO were used to compare the relative expression with a reverse transcription real time PCR approach of 13 candidate genes: SPP1 (osteopontin), TNFRSF11B (osteoprotegerin), SPARC (osteonectin), CALB1 (calbidin 1), CALM (Calmodulin 2), IBSP (sialoprotein), COL1A2 (collagen, type I, α 2), BMP2 (bone morphogenetic protein 2), BMP3 (bone morphogenetic protein 3), RANKL (κ-B nuclear factor ligand), SMAD1 (SMAD family member 1), LEPR (leptin receptor) and RUNX2 (related transcription factor Runt 2)...
November 24, 2016: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/27879343/strap-regulates-early-follicle-development-in-the-mouse-ovary
#20
Isam B Sharum, Sofia Granados-Aparici, Fiona C Warrander, Felicity P Tournant, Mark Fenwick
The molecular mechanisms involved in regulating the development of small, gonadotrophin-independent follicles are poorly understood; however, many studies have highlighted an essential role for TGFB ligands. Canonical TGFB signalling is dependent upon intracellular Smad proteins that regulate transcription. Strap has been identified in other tissues as an inhibitor of the TGFB-Smad signalling pathway. Therefore, in this study we aimed to determine the expression and role of Strap in the context of early follicle development...
November 22, 2016: Reproduction: the Official Journal of the Society for the Study of Fertility
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