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https://www.readbyqxmd.com/read/29331689/baicalin-inhibits-pressure-overload-induced-cardiac-fibrosis-through-regulating-ampk-tgf-%C3%AE-smads-signaling-pathway
#1
Yichuan Xiao, Jiantao Ye, Ying Zhou, Junjun Huang, Xiawen Liu, Biyun Huang, Liu Zhu, Bo Wu, Genshui Zhang, Yi Cai
AMP-activated protein kinase (AMPK) is a central regulator of multiple metabolic pathways. It has been shown that activation of AMPK could inhibit fibroblast proliferation and extracellular matrix (ECM) accumulation, thereby suppressing cardiac fibrosis. Baicalin, the major component found in skullcap, possesses multiple protective effects on the cardiovascular system. However, little is known about the effect of baicalin on cardiac fibrosis and the molecular mechanism by which baicalin exerts its anti-fibrotic effects has not been investigated...
January 10, 2018: Archives of Biochemistry and Biophysics
https://www.readbyqxmd.com/read/29330836/pathogenesis-of-non-alcoholic-fatty-liver-disease-mediated-by-yap
#2
Ping Chen, Qihui Luo, Chao Huang, Qi Gao, Like Li, Jingfei Chen, Bing Chen, Wentao Liu, Wen Zeng, Zhengli Chen
OBJECTIVE: This study aimed to investigate the mechanism of the interaction between Yes-associated protein (YAP) and transforming growth factor-β (TGF-β)/Smad signaling pathways in the development of non-alcoholic fatty liver disease (NAFLD). METHODS: Serum samples of monkeys with biopsy-proven NAFLD and healthy normal monkeys were used to measure fasting plasma glucose (FPG), low-density lipoprotein (LDL), high-density lipoprotein (HDL), triglyceride (TG) and albumin (ALB) with the BECKMAN CX5 PRO...
January 12, 2018: Hepatology International
https://www.readbyqxmd.com/read/29330296/tumor-progression-is-mediated-by-thymosin-%C3%A3-4-through-a-tgf%C3%A3-mrtf-signaling-axis
#3
Tsuyoshi Morita, Kenichiro Hayashi
Although enhanced thymosin beta-ß4 (TMSBX4/Tß4) expression is associated with tumor progression and metastasis, its tumor-promoting functions remain largely unknown. Here it is demonstrated that transforming growth factor beta (TGFß) facilitates Tß4 expression and leads to the activation of myocardin-related transcription factors (MRTFs), which are co-activators of serum response factor (SRF) and regulate the expression of genes critical for the epithelial-mesenchymal transition (EMT) and tumor metastasis...
January 12, 2018: Molecular Cancer Research: MCR
https://www.readbyqxmd.com/read/29330036/regulation-of-fibrotic-changes-by-the-synergistic-effects-of-cytokines-dimensionality-and-matrix-towards-the-development-of-an-in-vitro-human-dermal-hypertrophic-scar-model
#4
Shikha Chawla, Sourabh Ghosh
Current therapeutic strategies to reduce scarring in full thickness skin defect offer limited success due to poor understanding of scar tissue formation and the underlying signaling pathways. There is an urgent need to develop human cell based in vitro scar tissue models as animal testing is associated with ethical and logistic complications and inter-species variations. Pro-inflammatory cytokines play critical role in regulating scar development through complex interplay and interaction with the ECM and corresponding signaling pathways...
January 9, 2018: Acta Biomaterialia
https://www.readbyqxmd.com/read/29328490/galectin-1-expression-in-activated-pancreatic-satellite-cells-promotes-fibrosis-in-chronic-pancreatitis-pancreatic-cancer-via-the-tgf-%C3%AE-1-smad-pathway
#5
Dong Tang, Qi Wu, Jingqiu Zhang, Hongpeng Zhang, Zhongxu Yuan, Jiaming Xu, Yang Chong, Yuqin Huang, Qingquan Xiong, Sen Wang, Ying Tian, Yongdie Lu, Xiao Ge, Wenjing Shen, Daorong Wang
Chronic pancreatitis/pancreatic cancer (CP/PC) is characterized by fibrous connective tissue proliferation induced by activated pancreatic stellate cells (PSCs). Galectin-1 is upregulated in activated PSCs and is important for the continuing activation of PSCs. The aim of this study was to evaluate the effect of galectin-1 derived from activated PSCs on the progression of fibrosis in CP/PC. To this end, the expression of desmin, α-SMA, galectin-1, fibronectin and collagen type I in normal pancreatic, CP and PC tissues, as well as quiescent/activated PSCs, was investigated...
January 9, 2018: Oncology Reports
https://www.readbyqxmd.com/read/29328420/ginsenoside-rg3-inhibits-keloid-fibroblast-proliferation-angiogenesis-and-collagen-synthesis-in-vitro-via-the-tgf%C3%A2-%C3%AE-smad-and-erk-signaling-pathways
#6
Mengyao Tang, Weiwei Bian, Liying Cheng, Lu Zhang, Rong Jin, Wenbo Wang, Yuguang Zhang
A wide range of therapeutic options exists for the treatment of keloids, all of which have their own strengths; however, a high risk of side‑effects and frequent recurrence remains. Therefore, the present study aimed to identify improved therapeutic approaches or drugs for the treatment of keloids. Ginsenoside Rg3 (Rg3) has been reported to exert numerous antitumor effects, thus indicating that Rg3 may be a potential therapeutic agent that targets keloids. The present study determined the effects of Rg3 on human keloid fibroblasts (KFs) in vitro, and further explored the associated molecular and cellular mechanisms...
January 4, 2018: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/29328402/mir%C3%A2-203%C3%A2-3p-participates-in-the-suppression-of-diabetes%C3%A2-associated-osteogenesis-in-the-jaw-bone-through-targeting-smad1
#7
Yuying Tang, Leilei Zheng, Jie Zhou, Yang Chen, Lan Yang, Feng Deng, Yun Hu
Certain microRNAs (miRs) have important roles in the maintenance of bone development and metabolism, and a variety of miRs are known to be deregulated in diabetes. The present study investigated the role of miR‑203‑3p in the regulation of bone loss by assessing jaw bones of a rat model of type 2 diabetes. The results indicated that miR‑203‑3p inhibited osteogenesis in the jaws of diabetic rats and in rat bone marrow mesenchymal stem cells cultured in high‑glucose medium. A luciferase re-porter assay was used to verify the bioinformatics prediction that miR‑203‑3p targets the 3'‑untranslated region of Smad1, which is an important mediator of the bone morphogenetic protein (BMP)/Smad pathway...
January 9, 2018: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/29328383/oxymatrine-protects-against-the-effects-of-cardiopulmonary-resuscitation-via-modulation-of-the-tgf-%C3%AE-1-smad3-signaling-pathway
#8
Dawei Wang, Xiao Qian Lou, Xiao-Ming Jiang, Chenxi Yang, Xiao-Liang Liu, Nan Zhang
Previous studies have demonstrated that oxymatrine may inhibit ventricular remodeling and serves an important role in the treatment of cardiovascular disease. The present study investigated whether oxymatrine treatment protects against the effects of cardiopulmonary resuscitation (CPR) via regulation of the transforming growth factor‑β1 (TGF‑β1)/mothers against decapentaplegic (Smad) signaling pathway. A CPR model was established in Sprague‑Dawley (SD) rats by asphyxiation, and rats were subsequently anaesthetized by intraperitoneal injection of chloral hydrate...
January 4, 2018: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29327938/glaucocalyxin-a-attenuates-the-activation-of-hepatic-stellate-cells-through-the-tgf-%C3%AE-1-smad-signaling-pathway
#9
Zhichao Dong, Qi Gao, Hao Guo
Glaucocalyxin A (GLA) is a biologically active ent-kauranoid diterpenoid isolated from Rabdosia japonica var. glaucocalyx. A large number of studies have shown that GLA possesses important pharmacological activities, such as anti-inflammatory, antitumor, antifibrosis, and antiplatelet activities. However, the role of GLA in the pathogenesis of liver fibrosis remains undefined. Therefore, the aim of this study was to investigate the effects of GLA on hepatic stellate cells (HSCs) activation/proliferation and migration in vitro and its possible mechanism in liver fibrosis...
January 12, 2018: DNA and Cell Biology
https://www.readbyqxmd.com/read/29327472/mesenchymal-stem-cell-deficiency-influences-megakaryocytopoiesis-through-the-tnfaip3-nf-%C3%AE%C2%BAb-smad-pathway-in-patients-with-immune-thrombocytopenia
#10
Yun He, Lin-Lin Xu, Fei-Er Feng, Qian-Ming Wang, Xiao-Lu Zhu, Chen-Cong Wang, Jia-Min Zhang, Hai-Xia Fu, Lan-Ping Xu, Kai-Yan Liu, Xiao-Jun Huang, Xiao-Hui Zhang
Immune thrombocytopenia (ITP) is an autoimmune disease. Mesenchymal stem cells (MSCs) play important roles in the physiology and homeostasis of the haematopoietic system, including supporting megakaryocytic differentiation from CD34+ haematopoietic progenitor cells. Tumour necrosis factor alpha-induced protein 3 (TNFAIP3, also termed A20) plays a key role in terminating NF-κB signalling. Human genetic studies showed that the polymorphisms of the TNFAIP3 gene may contribute to ITP susceptibility. In this study, we showed a significant decrease in TNFAIP3 and increase in NF-κB/SMAD7 in ITP-MSCs...
January 12, 2018: British Journal of Haematology
https://www.readbyqxmd.com/read/29324800/hepcidin-deficiency-and-iron-deficiency-do-not-alter-tuberculosis-susceptibility-in-a-murine-m-tb-infection-model
#11
Rachel Harrington-Kandt, Elena Stylianou, Lucy A Eddowes, Pei Jin Lim, Lisa Stockdale, Nawamin Pinpathomrat, Naomi Bull, Janet Pasricha, Marta Ulaszewska, Yulia Beglov, Sophie Vaulont, Hal Drakesmith, Helen McShane
Tuberculosis (TB), caused by the macrophage-tropic pathogen Mycobacterium tuberculosis (M.tb) is a highly prevalent infectious disease. Since an immune correlate of protection or effective vaccine have yet to be found, continued research into host-pathogen interactions is important. Previous literature reports links between host iron status and disease outcome for many infections, including TB. For some extracellular bacteria, the iron regulatory hormone hepcidin is essential for protection against infection...
2018: PloS One
https://www.readbyqxmd.com/read/29321498/the-ppi-network-analysis-of-mrna-expression-profile-of-uterus-from-primary-dysmenorrheal-rats
#12
Pei Fan, Qiao-Hui Lin, Ying Guo, Lan-Ling Zhao, He Ning, Meng-Ying Liu, Dong-Qing Wei
To elucidate the mechanisms of molecular regulations underlying primary dysmenorrhea (PD), we used our previously published mRNA expression profile of uterus from PD syndrome rats to construct protein-protein interactions (PPI) network via STRING Interactome. Consequently, 34 subnetworks, including a "continent" (Subnetwork 1) and 33 "islands" (Subnetwork 2-34) were generated. The nodes, with relative expression ratios, were visualized in the PPI networks and their connections were identified. Through path and module exploring in the network, the bridges were found from pathways of cellular response to calcium ion, SMAD protein signal transduction, regulation of transcription from RNA polymerase II promoter in response to stress and muscle stretch that were significantly enriched by the up-regulated mRNAs, to the cascades of cAMP metabolic processes and positive regulation of cyclase activities by the down-regulated ones...
January 10, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29321139/bmp-smad-pathway-promotes-neurogenesis-of-midbrain-dopaminergic-neurons-in-vivo-and-in-human-induced-pluripotent-and-neural-stem-cells
#13
V M Jovanovic, A Salti, H Tilleman, K Zega, M M Jukic, H Zou, R H Friedel, N Prakash, S Blaess, F Edenhofer, C Brodski
The embryonic formation of midbrain dopaminergic (mDA) neurons in vivo provides critical guidelines for the in vitro differentiation of mDA neurons from stem cells, currently being developed for Parkinson's disease cell replacement therapy. Bone morphogenetic protein (BMP)/SMAD inhibition is routinely used during early steps of stem cell differentiation protocols, including for the generation of mDA neurons. However, the function of the BMP/SMAD pathway for in vivo specification of mammalian mDA neurons is virtually unknown...
January 10, 2018: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/29320872/correction-to-bai-et%C3%A2-al-melatonin-promotes-self-renewal-of-nestin-positive-pancreatic-stem-cells-through-activation-of-the-mt2-erk-smad-nestin-axis
#14
(no author information available yet)
No abstract text is available yet for this article.
January 10, 2018: Artificial Cells, Nanomedicine, and Biotechnology
https://www.readbyqxmd.com/read/29319157/mir-181b-induced-smad7-downregulation-controls-granulosa-cell-apoptosis-through-tgf-%C3%AE-signaling-by-interacting-with-the-tgfbr1-promoter
#15
Wang Yao, Zengxiang Pan, Xing Du, Jinbi Zhang, Qifa Li
SMAD7 disrupts the TGF-β signaling pathway by influencing TGFBR1 stability and by blocking the binding of TGFBR1 to SMAD2/3. In this study, we showed that SMAD7 attenuated the TGF-β signaling pathway in ovarian granulosa cells (GCs) by regulating TGFBR1 transcriptional activity. To function as a transcription factor, SMAD7 downregulated the mRNA levels of TGFBR1 via direct binding to the SMAD-binding elements (SBEs) within the promoter region of pig TGFBR1. We also showed that SMAD7 enhanced porcine GC apoptosis by interrupting TGFBR1 and the TGF-β signaling pathway...
January 10, 2018: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29318958/a-cell-engineered-small-intestinal-submucosa-based-bone-mimetic-construct-for-bone-regeneration
#16
Mei Li, Chi Zhang, Yuxing Mao, Yi Zhong, Jiyuan Zhao
Extracellular matrix (ECM)-ornamented biomaterials have attracted attention due to their high potential to improve the bio-functionality of original materials. It is thought that ECM with a bone mimetic microenvironment generated by the specific induction of osteoblasts would be more beneficial for bone regeneration than regular ECM. In this study, we developed an osteogenic and mineralized ECM construct (Os/M-ECM-SIS) under the guidance of osteoblasts on a small intestinal submucosa (SIS) scaffold co-treated with icariin and calcium...
January 10, 2018: Tissue Engineering. Part A
https://www.readbyqxmd.com/read/29318853/-effects-of-electroacupuncture-on-adaptive-hypertrophy-of-gastrocnemius-and-proliferation-and-differentiation-of-muscle-satellite-cells-in-rats
#17
Dan-Dan Zhao, Cheng-Lin Tang, Si-Qin Huang, Ao Luo, An-Ning Zhang, Quan-Hu Guo, Jing Cao, Rui-Qi Gao
OBJECTIVE: To explore the effects and mechanism of different duration electroacupuncture (EA) on adaptive hypertrophy of gastrocnemius and the expressions of proliferation cell nuclear antigen (PCNA), paired box transcription factor 7 (Pax 7), myogenic differentiation antigen (MyoD 1), myogenin (MyoG), myosin heavy chain-Ⅰ(Myh 7), transforming growth factor-β 1 (TGF-β 1), Smad 3 in rats. METHODS: Twenty-four SD adult male rats were randomly divided into normal, two-week EA (A 2), four-week EA (A 4) and eight-week EA (A 8) groups, 6 rats in each group...
December 25, 2017: Zhen Ci Yan Jiu, Acupuncture Research
https://www.readbyqxmd.com/read/29318851/-effect-of-combined-intervention-of-electroacupuncture-and-astragaloside-iv-on-myocardial-hypertrophy-and-tgf-%C3%AE-1-smad-signaling-in-rats-with-myocardial-fibrosis
#18
Jia-Shen Li, Xiao-Yu Zhu, Mei-Li Lu, Jun-Hong Gao, Hong-Xin Wang, Xiao-Chun Yu
OBJECTIVE: To observe the effect of combined intervention of electroacupuncture (EA) and astragaloside IV(ASIV) on cardiac hypertrophy and transforming growth factor β 1 (TGF-β 1)/Smad signaling in isoproterenol (ISO) induced cardiac hypertrophy rats, so as to investigate its underlying mechanisms in improving myocardial fibrosis. METHODS: A total of 50 SD rats were randomly divided into 5 groups: normal control, model (ISO), Propranolol (PRO),ASIV and EA+ASIV groups (n=10 in each group)...
December 25, 2017: Zhen Ci Yan Jiu, Acupuncture Research
https://www.readbyqxmd.com/read/29317497/identification-of-direct-negative-crosstalk-between-the-slit2-and-bone-morphogenetic-protein-gremlin-signaling-pathways
#19
Kathleen E Tumelty, Nathan Higginson-Scott, Xueping Fan, Piyush Bajaj, Kelly M Knowlton, Michael Shamashkin, Anthony J Coyle, Weining Lu, Stephen P Berasi
Slit guidance ligand 2 (SLIT2) is a large, secreted protein which binds roundabout (ROBO) receptors on multiple cell types including neurons and kidney podocytes. SLIT2-ROBO2 mediated signaling regulates neuronal migration and ureteric bud (UB) outgrowth during kidney development as well as glomerular filtration in adult kidneys. Additionally, SLIT2 binds Gremlin, an antagonist of bone morphogenetic proteins (BMPs), and BMP-Gremlin signaling also regulates UB formation. However, direct crosstalk between the ROBO2-SLIT2 and BMP-Gremlin signaling pathways has not been established...
January 9, 2018: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/29317485/meis1-coordinates-cerebellar-granule-cell-development-by-regulating-pax6-transcription-bmp-signaling-and-atoh1-degradation
#20
Tomoo Owa, Shinichiro Taya, Satoshi Miyashita, Mariko Yamashita, Toma Adachi, Koyo Yamada, Miwa Yokoyama, Shogo Aida, Tomoki Nishioka, Yukiko U Inoue, Ryo Goitsuka, Takuro Nakamura, Takayoshi Inoue, Kozo Kaibuchi, Mikio Hoshino
Cerebellar granule cell precursors (GCPs) and granule cells (GCs) represent good models to study neuronal development. Here we report that the transcription factor, Meis1, plays pivotal roles to regulate mouse GC development. We found that Meis1 is expressed in granule cell lineage cells and astrocytes in the cerebellum during development. Targeted disruption of the Meis1 gene specifically in the GC lineage resulted in smaller cerebella with disorganized lobules. Knockdown/knockout experiments for Meis1 as well as in vitro assays show that Meis1 binds to an upstream sequence of Pax6 to enhance its transcription in GCPs/GCs and further suggested that the Meis1-Pax6 cascade regulates morphology of GCPs/GCs during development...
January 9, 2018: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
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