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https://www.readbyqxmd.com/read/28535536/losartan-preserves-erectile-function-by-suppression-of-apoptosis-and-fibrosis-of-corpus-cavernosum-and-corporal-veno-occlusive-dysfunction-in-diabetic-rats
#1
Wen Ji Li, Mingxi Xu, Meng Gu, Da-Chao Zheng, Jianhua Guo, Zhikang Cai, Zhong Wang
BACKGROUND/AIMS: Transforming growth factor-β1 (TGF-β1) plays important roles in penile corporal fibrosis and veno-occlusive dysfunction (CVOD). Angiotensin II (Ang II) is critically involved in erectile dysfunction, and blocking of Ang II is more important than inhibition of TGF-β in non-penile tissue fibrosis. However, the role of Ang II in corporal fbrosis and CVOD in a diabetic condition has not been investigated. METHODS: Diabetic rats were treated with sildenafil or losartan (an Ang II antagonist) alone or in combination...
May 25, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28535372/a-brain-region-specific-neural-pathway-regulating-germinal-matrix-angiogenesis
#2
Shang Ma, Devi Santhosh, Peeyush Kumar T, Zhen Huang
Intimate communication between neural and vascular cells is critical for normal brain development and function. Germinal matrix (GM), a key primordium for the brain reward circuitry, is unique among brain regions for its distinct pace of angiogenesis and selective vulnerability to hemorrhage during development. A major neonatal condition, GM hemorrhage can lead to cerebral palsy, hydrocephalus, and mental retardation. Here we identify a brain-region-specific neural progenitor-based signaling pathway dedicated to regulating GM vessel development...
May 22, 2017: Developmental Cell
https://www.readbyqxmd.com/read/28534977/runx3-modulates-hypoxia-induced-endothelial-to-mesenchymal-transition-of-human-cardiac-microvascular-endothelial-cells
#3
Yanhua Liu, Jin Zou, Bingong Li, Yuqin Wang, Delong Wang, Yanqin Hao, Xuan Ke, Xingxing Li
Endothelial-mesenchymal transition (EndMT) is an essential mechanism in the cardiovascular system, for both cardiovascular development and cardiovascular diseases (CVDs). Recent studies indicate that runt-related transcription factor 3 (RUNX3) contributes to EndMT and endothelial cell dysfunction. However, the underlying molecular mechanism remains unknown. The present study was designed to investigate the role of RUNX3 in EndMT and endothelial cell function, and to elucidate the underlying molecular mechanism...
May 22, 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/28534971/mir-483-5p-plays-a-protective-role-in-chronic-obstructive-pulmonary-disease
#4
Zhenyu Shen, Wenxiang Tang, Jiang Guo, Shenghua Sun
Altered microRNA (miRNA or miR) expression has been reported in chronic obstructive pulmonary disease (COPD). The present study aimed to identify the involvement of miRNAs in the pathophysiology of COPD and to explore the effects of various miRNAs with significant alteration on COPD in vitro. We conducted high‑throughput analysis of miRNAs (miRNA microarray) in lung samples from 10 COPD patients and 10 healthy persons with a validation experiment using quantitative (real‑time) polymerase chain reaction (real‑time PCR) panels...
May 18, 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/28534191/tgf-%C3%AE-in-inflammatory-bowel-disease-a-key-regulator-of-immune-cells-epithelium-and-the-intestinal-microbiota
#5
REVIEW
Sozaburo Ihara, Yoshihiro Hirata, Kazuhiko Koike
Inflammatory bowel disease (IBD) is defined as chronic intestinal inflammation, and includes ulcerative colitis and Crohn's disease. Multiple factors are involved in the pathogenesis of IBD, and the condition is characterized by aberrant mucosal immune reactions to intestinal microbes in genetically susceptible hosts. Transforming growth factor-β (TGF-β) is an immune-suppressive cytokine produced by many cell types and activated by integrins. Active TGF-β binds to its receptor and regulates mucosal immune reactions through the TGF-β signaling pathway...
May 22, 2017: Journal of Gastroenterology
https://www.readbyqxmd.com/read/28533545/treatment-effects-of-the-traditional-chinese-medicine-shenks-in-bleomycin-induced-lung-fibrosis-through-regulation-of-tgf-beta-smad3-signaling-and-oxidative-stress
#6
Haiyan Chu, Ying Shi, Shuai Jiang, Qicheng Zhong, Yongqiang Zhao, Qingmei Liu, Yanyun Ma, Xiangguang Shi, Weifeng Ding, Xiaodong Zhou, Jimin Cui, Li Jin, Gang Guo, Jiucun Wang
Pulmonary fibrosis is a kind of devastating interstitial lung disease due to the limited therapeutic strategies. Traditional Chinese medicine (TCM) practices have put forth Shenks as a promising treatment approach. Here, we performed in vivo study and in vitro study to delineate the anti-fibrotic mechanisms behind Shenks treatment for pulmonary fibrosis. We found that regardless of the prophylactic or therapeutic treatment, Shenks was able to attenuate BLM-induced-fibrosis in mice, down regulate extracellular matrix genes expression, and reduce collagen production...
May 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28533206/myostatin-like-proteins-regulate-synaptic-function-and-neuronal-morphology
#7
Hrvoje Augustin, Kieran McGourty, Joern R Steinert, Helena M Cochemé, Jennifer Adcott, Melissa Cabecinha, Alec Vincent, Els F Halff, Josef T Kittler, Emmanuel Boucrot, Linda Partridge
Growth factors of the TGF-β superfamily play key roles in regulating neuronal and muscle function. Myostatin (or GDF8) and GDF11 are potent negative regulators of skeletal muscle mass. However, expression of both Myostatin and its cognate receptors in other tissues, including brain and peripheral nerves, suggests a potential wider biological role. Here, we show that Myoglianin (MYO), the Drosophila homolog of Myostatin and GDF11, regulates not only body weight and muscle size, but also inhibits neuromuscular synapse strength and composition in a Smad2-dependent manner...
May 22, 2017: Development
https://www.readbyqxmd.com/read/28531845/artesunate-and-erythropoietin-synergistically-improve-the-outcome-of-experimental-cerebral-malaria
#8
Yunting Du, Guang Chen, Xuexing Zhang, Chunyun Yu, Yaming Cao, Liwang Cui
Cerebral malaria (CM) is a severe neurological syndrome in humans and the main fatal cause of malaria. In malaria epidemic regions, despite appropriate anti-malarial treatment, 10-20% of deaths still occur during the acute phase. This is largely attributable to poor treatment access, therapeutic complexity and drug resistance; thus, developing additional clinical adjunctive therapies is an urgent necessity. In this study, we investigated the effect of artesunate (AST) and recombinant human erythropoietin (rhEPO) using an experimental cerebral malaria (ECM) model-C57BL/6 mice infected with Plasmodium berghei ANKA (PbA)...
May 19, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/28531253/gender-related-prognostic-value-and-genomic-pattern-of-intra-tumor-heterogeneity-ith-in-colorectal-cancer
#9
Jieyun Zhang, Shican Yan, Xiyu Liu, Lu Gan, Zhenhua Wu, Yiwei Gong, Mingzhu Huang, Xiaowei Zhang, Weijian Guo
Intra-tumor heterogeneity (ITH) is crucial in tumorigenesis and resistance to target therapy. Here, we used mutant-allele tumor heterogeneity (MATH) to measure ITH based on next-generation sequencing data and high MATH was proven as an independent risk prognostic factor in male CRC patients in both a training set of 284 colorectal cancer (CRC) patients with from The Cancer Genome Atlas (TCGA) and a validating set of 187 CRC patients from International Cancer Genome Consortium (ICGC). Further, the genomic pattern according to MATH demonstrated that mutation rates of TP53, IRF5 and KRAS were independently associated with MATH, and the latter two were only significant in male patients...
May 20, 2017: Carcinogenesis
https://www.readbyqxmd.com/read/28530637/cell-penetrating-peptides-selectively-targeting-smad3-inhibit-profibrotic-tgf-%C3%AE-signaling
#10
Jeong-Han Kang, Mi-Yeon Jung, Xueqian Yin, Mahefatiana Andrianifahanana, Danielle M Hernandez, Edward B Leof
TGF-β is considered a master switch in the pathogenesis of organ fibrosis. The primary mediators of this activity are the SMAD proteins, particularly SMAD3. In the current study, we have developed a cell-penetrating peptide (CPP) conjugate of the HIV TAT protein that is fused to an aminoterminal sequence of sorting nexin 9 (SNX9), which was previously shown to bind phosphorylated SMAD3 (pSMAD3). We determined that specifically preventing the nuclear import of pSMAD3 using the TAT-SNX9 peptide inhibited profibrotic TGF-β activity in murine cells and human lung fibroblasts as well as in vivo with no demonstrable toxicity...
May 22, 2017: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/28530155/an-oncolytic-adenovirus-encoding-decorin-and-gm-csf-inhibits-tumor-growth-in-a-colorectal-tumor-model-by-targeting-pro-tumorigenic-signals-and-via-immune-activation
#11
Zhao Liu, Yuefeng Yang, Xiaoyan Zhang, Hao Wang, Weidong Xu, Hua Wang, FengJun Xiao, Zhigang Bai, Hongwei Yao, Xuemei Ma, Lan Jin, Chu-Tse Wu, Prem Seth, Zhongtao Zhang, Lisheng Wang
In advanced and metastatic stages of colorectal cancer (CRC), reduced sensitivity to conventional strategies is still a major obstacle to successful treatments. Decorin is an important regulator in the development and progression of various cancers. To examine if CRC patients have altered decorin levels, expression of decorin and its target genes, Met and vascular endothelial growth factor A (VEGFA) were analyzed in their tumors. Compared to normal tissues, decorin expression was reduced in CRC patients' tumors, while, there were increased Met and VEGFA levels...
May 20, 2017: Human Gene Therapy
https://www.readbyqxmd.com/read/28529843/deconstructing-the-complexity-of-tgf%C3%AE-signaling-in-hematopoietic-stem-cells-quiescence-and-beyond
#12
Ashwini Hinge, Marie-Dominique Filippi
The hematopoietic system is highly dynamic and must constantly produce new blood cells every day. Mature blood cells all derive from a pool of rare long-lived hematopoietic stem cells (HSCs) that are mostly quiescent but occasionally divide and self-renew in order to maintain the stem cell pool and continuous replenishment of mature blood cells throughout life. A tight control of HSC self-renewal, commitment to differentiation and maintenance of quiescence states is necessary for lifelong blood supply. Transforming growth factor-β (TGF-β) is a critical regulator hematopoietic cell functions...
December 2016: Current Stem Cell Reports
https://www.readbyqxmd.com/read/28529732/microarray-analysis-of-differentially-expressed-genes-and-their-functions-in-omental-visceral-adipose-tissues-of-pregnant-women-with-vs-without-gestational-diabetes-mellitus
#13
Yuan Qian, Hao Sun, Hongli Xiao, Meirun Ma, Xue Xiao, Qinzai Qu
Increasing evidence has shown that insulin resistance in omental visceral adipose tissue (OVAT) is a characteristic of gestational diabetes mellitus (GDM). The present study aimed to identify differentially expressed genes (DEGs) and their associated functions and pathways involved in the pathogenesis of GDM by comparing the expression profiles of OVATs obtained from pregnant Chinese women with and without GDM during caesarian section. A total of 935 DEGs were identified, including 450 downregulated and 485 upregulated genes...
May 2017: Biomedical Reports
https://www.readbyqxmd.com/read/28529566/tgf-%C3%AE-1-signaling-pathway-serves-a-role-in-hepg2-cell-regulation-by-affecting-the-protein-expression-of-pcna-gankyrin-p115-xiap-and-survivin
#14
Xin-Hong Wang, Zhi-Guo Chen, Rui-Ling Xu, Cheng-Qian Lv, Jing Liu, Bing Du
The transforming growth factor-β (TGF-β) signaling pathway serves a key role in the pathogenesis of liver cancer. To investigate the association between TGF-β1 and the following proteins: Proliferating cell nuclear antigen (PCNA), gankyrin, general vesicular transport factor p115 (p115), X-linked inhibitor of apoptosis protein (XIAP) and survivin, HepG2 liver cancer cells were transfected with small interfering RNA (siRNA) directed against TGF-β1, or were treated with exogenous TGF-β1. TGF-β1 protein expression levels were assessed at 72 and 96 h using western blotting, cell growth was evaluated using a Cell Counting kit-8 assay, and flow cytometry was used to examine cell cycle distribution and apoptosis...
May 2017: Oncology Letters
https://www.readbyqxmd.com/read/28528475/effects-of-selenium-supplementation-on-gene-expression-levels-of-inflammatory-cytokines-and-vascular-endothelial-growth-factor-in-patients-with-gestational-diabetes
#15
Mehri Jamilian, Mansooreh Samimi, Faraneh Afshar Ebrahimi, Esmat Aghadavod, Robabeh Mohammadbeigi, Maryam Rahimi, Zatollah Asemi
Selenium is known to exert multiple beneficial effects including anti-inflammatory actions. The aim of the study was to evaluate the effects of selenium supplementation on gene expression levels of inflammatory cytokines and vascular endothelial growth factor (VEGF) in women with gestational diabetes (GDM). This randomized double-blind, placebo-controlled trial was carried out among 40 subjects diagnosed with GDM aged 18-40 years old. Subjects were randomly allocated into two groups to receive either 200 μg/day selenium supplements (n = 20) or placebo (n = 20) for 6 weeks...
May 21, 2017: Biological Trace Element Research
https://www.readbyqxmd.com/read/28527661/modulation-of-adipocyte-function-by-the-tgf-%C3%AE-family
#16
Yuhang Qiao, Shozo Tomonaga, Masashi Suenaga, Tohru Matsui, Masayuki Funaba
Members of the transforming growth factor-β (TGF-β) family are known to regulate the commitment of mesenchymal stem cells to an adipocyte lineage and the differentiation of preadipocytes to adipocytes. However, the roles of TGF-β family members in mature adipocytes are not known. The present study explored the modulation of cell function in 3T3-L1 adipocytes treated with the TGF-β family members TGF-β1, activin A, activin B, bone morphogenetic protein (BMP) 4, and BMP7. These TGF-β family members modulated the expression of some adipokines; activin A upregulated leptin expression, and activin B downregulated the expression of plasminogen activator inhibitor-1...
May 17, 2017: Cytokine
https://www.readbyqxmd.com/read/28526296/mesenchymal-stem-cells-mscs-attenuate-cutaneous-sclerodermatous-graft-versus-host-disease-scl-gvhd-through-inhibition-of-immune-cell-infiltration-in-a-mouse-model
#17
Ji-Young Lim, Da-Bin Ryu, Sung-Eun Lee, Gyeongsin Park, Chang-Ki Min
Human chronic graft-versus-host disease (CGVHD) shares clinical characteristics with a murine sclerodermatous GVHD (Scl-GVHD) model that is characterized by skin thickening and lung fibrosis. A B10.D2 → BALB/c transplant model of Scl-GVHD was used to address the therapeutic effect of mesenchymal stem cells (MSCs) on the development of CGVHD. The clinical and pathological severity of cutaneous Scl-GVHD was significantly attenuated in MSC-treated recipients relative to Scl-GVHD controls. After MSC treatment, skin collagen production was significantly reduced with consistent downregulation of TGF-β expression...
May 16, 2017: Journal of Investigative Dermatology
https://www.readbyqxmd.com/read/28524854/a-smad3-pten-regulatory-loop-controls-proliferation-and-apoptotic-responses-to-tgf-%C3%AE-in-mouse-endometrium
#18
Nuria Eritja, Isidre Felip, Mari Alba Dosil, Lucia Vigezzi, Cristina Mirantes, Andree Yeramian, Raúl Navaridas, Maria Santacana, David Llobet-Navas, Akihiko Yoshimura, Masatoshi Nomura, Mario Encinas, Xavier Matias-Guiu, Xavi Dolcet
The TGF-β/Smad and the PI3K/AKT signaling pathways are important regulators of proliferation and apoptosis, and their alterations lead to cancer development. TGF-β acts as a tumor suppressor in premalignant cells, but it is a tumor promoter for cancerous cells. Such dichotomous actions are dictated by different cellular contexts. Here, we have unveiled a PTEN-Smad3 regulatory loop that provides a new insight in the complex cross talk between TGF-β/Smad and PI3K/AKT signaling pathways. We demonstrate that TGF-β triggers apoptosis of wild-type polarized endometrial epithelial cells by a Smad3-dependent activation of PTEN transcription, which results in the inhibition of PI3K/AKT signaling pathway...
May 19, 2017: Cell Death and Differentiation
https://www.readbyqxmd.com/read/28524372/herbal-formula-baogan-yihao-bgyh-prevented-dimethylnitrosamine-dmn-induced-liver-injury-in-rats
#19
Xiujie Liu, Jing Su, Yu Shi, Ying Guo, Imran Suheryani, Shicong Zhao, Yulin Deng, Weiwei Meng, Yan Chen, Lili Sun, Rongji Dai
Preclinical Research Baogan Yihao (BGYH) is a traditional Chinese herbal medicine for the treatment of chronic liver diseases. In this study, the effects of BGYH on dimethylnitrosamine (DMN)-induced liver fibrosis were investigated using a rat model. BGYH alleviate liver damage, as indicated by decreased levels of AST, ALT, γ-GT, and AKP. BGYH also prevented collagen deposition and reduced pathological tissue injury in liver tissue. In fibrosis, high levels of α-SMA and TGF-β in liver tissue were markedly attenuated by BGYH...
May 19, 2017: Drug Development Research
https://www.readbyqxmd.com/read/28523126/transforming-growth-factor-%C3%AE-a-master-regulator-of-the-gut-microbiota-and-immune-cell-interactions
#20
REVIEW
David Bauché, Julien C Marie
The relationship between host organisms and their microbiota has co-evolved towards an inter-dependent network of mutualistic interactions. This interplay is particularly well studied in the gastrointestinal tract, where microbiota and host immune cells can modulate each other directly, as well as indirectly, through the production and release of chemical molecules and signals. In this review, we define the functional impact of transforming growth factor-beta (TGF-β) on this complex interplay, especially through its modulation of the activity of local regulatory T cells (Tregs), type 17 helper (Th17) cells, innate lymphoid cells (ILCs) and B cells...
April 2017: Clinical & Translational Immunology
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