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https://www.readbyqxmd.com/read/28086769/effect-of-ginseng-extract-on-the-tgf-%C3%AE-1-signaling-pathway-in-ccl4-induced-liver-fibrosis-in-rats
#1
Mohamed M Hafez, Sherifa S Hamed, Manal F El-Khadragy, Zeinab K Hassan, Salim S Al Rejaie, Mohamed M Sayed-Ahmed, Naif O Al-Harbi, Khalid A Al-Hosaini, Mohamed M Al-Harbi, Ali R Alhoshani, Othman A Al-Shabanah, Shakir Dekhal Alsharari
BACKGROUND: Liver diseases are major global health problems. Ginseng extract has antioxidant, immune-modulatory and anti-inflammatory activities. This study investigated the effect of ginseng extract on carbon tetrachloride (CCl4)-induced liver fibrosis in rats. METHODS: Male Wistar rats were divided into four groups: control group, ginseng group, CCl4 group and CCl4 + ginseng group. Liver injury was induced by the intraperitoneal (I.P) injection of 3 ml/kg CCl4 (30% in olive oil) weekly for 8 weeks...
January 13, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28075040/n-acetyl-seryl-aspartyl-lysyl-proline-mediates-the-anti-fibrotic-properties-of-captopril-in-unilateral-ureteric-obstructed-balb-c-mice
#2
Gary Cw Chan, Hao Jia Wu, Kam Wa Chan, Stella Yiu, Ailis Zou, Xiao Ru Huang, Hui Yao Lan, Kar Neng Lai, Sydney Cw Tang
BACKGROUND: Angiotensin-converting enzyme inhibitors (ACEi) are widely employed to deter the progression of chronic kidney disease (CKD). Besides controlling hypertension and reduction of intra-glomerular pressure, ACEi appear to have anti-fibrotic effects in the renal cortex. N-acetyl-seryl-aspartyl-lysyl-proline (Ac-SDKP), an endogenous tetrapeptide that is degraded by ACE, has also been shown to ameliorate the pro-fibrotic phenotype displayed in CKD in our recent study. Whether the anti-fibrotic properties of ACEi are mediated by Ac-SDKP has not been fully investigated...
January 11, 2017: Nephrology
https://www.readbyqxmd.com/read/28065853/sitagliptin-inhibit-human-lymphocytes-proliferation-and-th1-th17-differentiation-in-vitro
#3
Marcelo Maia Pinheiro, Caroline Lais Stoppa, Claudete Justina Valduga, Cristina Eunice Okuyama, Renata Gorjão, Regina Mara Silva Pereira, Susana Nogueira Diniz
Dipeptidyl peptidase-4 (DPP-4) inhibitors are a new class of anti-diabetic agents that are widely used in clinical practice to improve glycemic control in patients with type 2 diabetes. DPP-4 is also known as lymphocyte cell surface protein, CD26, and plays an important role in T-cell immunity. Recent studies suggest that DPP-4 inhibitors improve beta-cell function and attenuate autoimmunity in type 1 diabetic mouse models. To investigate the direct effect of DPP4 in immune response, human peripheral blood mononuclear cells (PBMC) from healthy volunteers were obtained by Ficoll gradient and cultivated in the absence (control) or presence of phytohemagglutinin (PHA), or stimulated with PHA and treated with sitagliptin...
January 5, 2017: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28060893/positioning-of-tacrolimus-for-the-treatment-of-diabetic-nephropathy-based-on-computational-network-analysis
#4
Constantin Aschauer, Paul Perco, Andreas Heinzel, Judith Sunzenauer, Rainer Oberbauer
OBJECTIVE: To evaluate tacrolimus as therapeutic option for diabetic nephropathy (DN) based on molecular profile and network-based molecular model comparisons. MATERIALS AND METHODS: We generated molecular models representing pathophysiological mechanisms of DN and tacrolimus mechanism of action (MoA) based on literature derived data and transcriptomics datasets. Shared enriched molecular pathways were identified based on both model datasets. A newly generated transcriptomics dataset studying the effect of tacrolimus on mesangial cells in vitro was added to identify mechanisms in DN pathophysiology...
2017: PloS One
https://www.readbyqxmd.com/read/28042775/inhibition-of-epithelial-mesenchymal-transition-in-response-to-treatment-with-metformin-and-y27632-in-breast-cancer-cell-lines
#5
Camila Leonel, Lívia Carvalho Ferreira, Thaiz Ferraz Borin, Marina Gobbe Moschetta, Gabriela Scavacini Freitas, Michel Raineri Haddad, João Antonio de Camargos Pinto Robles, Debora Aparecida Pires de Campos Zuccari
BACKGROUND: ROCK-1 expression is associated with the malignant character of tumors, while inhibiting this molecule results in a significant suppression of tumor metastasis. Likewise, transforming growth factor beta (TGF-β) is associated with this malignancy by having the ability to induce epithelial-mesenchymal transition (EMT). Metformin, a drug used in the treatment of diabetes, has previously been shown to inhibit EMT in breast cancer cells. OBJECTIVE: The aim of this study is to evaluate the TGF-β1 action model for induction of EMT and the action of metformin and ROCK-1 inhibitor (Y27632) in EMT process in breast cancer cell lines...
January 2, 2017: Anti-cancer Agents in Medicinal Chemistry
https://www.readbyqxmd.com/read/28008250/a-polyethylenimine-modified-carboxyl-poly-styrene-acrylamide-copolymer-nanosphere-for-co-delivering-of-cpg-and-tgf-%C3%AE-receptor-i-inhibitor-with-remarkable-additive-tumor-regression-effect-against-liver-cancer-in-mice
#6
Shuyan Liang, Jun Hu, Yuanyuan Xie, Qing Zhou, Yanhong Zhu, Xiangliang Yang
Cancer immunotherapy based on nanodelivery systems has shown potential for treatment of various malignancies, owing to the benefits of tumor targeting of nanoparticles. However, induction of a potent T-cell immune response against tumors still remains a challenge. In this study, polyethylenimine-modified carboxyl-styrene/acrylamide (PS) copolymer nano-spheres were developed as a delivery system of unmethylated cytosine-phosphate-guanine (CpG) oligodeoxynucleotides and transforming growth factor-beta (TGF-β) receptor I inhibitors for cancer immunotherapy...
2016: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/27995168/data-on-the-effect-of-pro-fibrotic-cytokine-tgf-%C3%AE-on-hepatic-stellate-cell-autophagy
#7
Paul G Thomes, Elizabeth Brandon-Warner, Ting Li, Terrence M Donohue, Laura W Schrum
Our data describe autophagic flux in primary rat hepatic stellate cells (rHSCs) treated with pro-fibrotic growth factor, transforming growth factor beta (TGF-β). An autophagy flux experiment determines the rate of synthesis and degradation of the autophagosome marker, LC3-II in the presence and absence of the lysosomal inhibitor bafilomcyin, which blocks LC3-II degradation in lysosomes. The effects of a test agent on LC3-II flux through the autophagic pathway is determined immunochemically by its relative amounts detected in lysates of cells treated with and without bafilomycin...
February 2017: Data in Brief
https://www.readbyqxmd.com/read/27940637/an-optimized-chromatographic-strategy-for-multiplexing-in-parallel-reaction-monitoring-mass-spectrometry-insights-from-quantitation-of-activated-kinases
#8
Anatoly Urisman, Rebecca S Levin, John D Gordan, James T Webber, Hilda Hernandez, Yasushi Ishihama, Kevan M Shokat, Alma L Burlingame
Reliable quantitation of protein abundances in defined sets of cellular proteins is critical to numerous biological applications. Traditional immunodetection-based methods are limited by the quality and availability of specific antibodies, especially for site-specific post-translational modifications. Targeted proteomic methods, including the recently developed parallel reaction monitoring (PRM) mass spectrometry, have enabled accurate quantitative measurements of up to a few hundred specific target peptides...
December 11, 2016: Molecular & Cellular Proteomics: MCP
https://www.readbyqxmd.com/read/27930933/calcitonin-induces-collagen-synthesis-and-osteoblastic-differentiation-in-human-periodontal-ligament-fibroblasts
#9
Yibo Wei, Qing Ye, Zhen Tang, Gang Tian, Qiang Zhu, Haocheng Gao, Dalin Wang, Zhizhong Cao
BACKGROUND: Extracellular matrix (ECM) secretion and osteogenic differentiation in periodontal ligament fibroblasts (PDLF) facilitate the neogenesis of alveolar bone, which is the cellular basis for alveolar bone repair. Calcitonin (CT) has been reported to play an important role in promoting ECM expression and inducing osteogenic differentiation in osteoblast, but its effects on PDLFs remain obscure. METHODS: The expression of CT, transforming growth factor-beta 1(TGF-β1) and bone morphogenetic protein (BMP) in gingival crevicular fluid (GCF) was measured by ELISA...
February 2017: Archives of Oral Biology
https://www.readbyqxmd.com/read/27910859/t-cell-programming-in-pancreatic-adenocarcinoma-a-review
#10
REVIEW
Y D Seo, V G Pillarisetty
Despite recent advancements in multimodal therapy, pancreatic ductal adenocarcinoma (PDA) continues to have a dismal prognosis. In the era of burgeoning immune therapies against previously difficult-to-treat malignancies, there has been growing interest in activating the immune system against PDA; however, unlike in other cancers such as melanoma and lymphoma, immunotherapy has not yielded many clinically significant results. To harness these mechanisms for therapeutic use, an in-depth understanding of T-cell programming in the immune microenvironment of PDA must be achieved...
December 2, 2016: Cancer Gene Therapy
https://www.readbyqxmd.com/read/27880803/wdr68-mediates-dorsal-and-ventral-patterning-events-for-craniofacial-development
#11
Estibaliz Alvarado, Mina Yousefelahiyeh, Greg Alvarado, Robin Shang, Taryn Whitman, Andrew Martinez, Yang Yu, Annie Pham, Anish Bhandari, Bingyan Wang, Robert M Nissen
Birth defects are among the leading causes of infant mortality and contribute substantially to illness and long-term disability. Defects in Bone Morphogenetic Protein (BMP) signaling are associated with cleft lip/palate. Many craniofacial syndromes are caused by defects in signaling pathways that pattern the cranial neural crest cells (CNCCs) along the dorsal-ventral axis. For example, auriculocondylar syndrome is caused by impaired Endothelin-1 (Edn1) signaling, and Alagille syndrome is caused by defects in Jagged-Notch signaling...
2016: PloS One
https://www.readbyqxmd.com/read/27866969/overexpression-of-cd109-in-the-epidermis-differentially-regulates-alk1-versus-alk5-signaling-and-modulates-extracellular-matrix-synthesis-in-the-skin
#12
Joshua Vorstenbosch, Christopher M Nguyen, Shufeng Zhou, You Jung Seo, Aya Siblini, Kenneth W Finnson, Albane A Bizet, Simon D Tran, Anie Philip
Transforming growth factor-beta (TGF-β) is a multifunctional growth factor involved in many physiological processes including wound healing and inflammation. Excessive TGF-β signaling in the skin has been implicated in fibrotic skin disorders such as keloids and scleroderma. We have previously identified CD109 as a TGF- β co-receptor and inhibitor of TGF-ß signaling, and have shown that transgenic mice overexpressing CD109 in the epidermis display decreased scarring. In certain cell types, in addition to the canonical type I receptor, ALK5 which activates Smad2/3, TGF-β can signal through another type I receptor ALK1 which activates Smad1/5...
November 17, 2016: Journal of Investigative Dermatology
https://www.readbyqxmd.com/read/27865848/retinol-dehydrogenase-13-deficiency-diminishes-carbon-tetrachloride-induced-liver-fibrosis-in-mice
#13
Xiaofang Cui, Suying Dang, Yan Wang, Yan Chen, Jia Zhou, Chunling Shen, Ying Kuang, Jian Fei, Lungen Lu, Zhugang Wang
Retinol dehydrogenase 13 (RDH13) is a mitochondrion-localized member of the short-chain dehydrogenases/reductases (SDRs) superfamily that participates in metabolism of some compounds. Rdh13 mRNA is most highly expressed in mouse liver. Rdh13 deficiency reduces the extent of liver injury and fibrosis, reduces hepatic stellate cell (HSC) activation, attenuates collagen I (II), tissue inhibitor of metalloproteinase 1 (TIMP-1) and transforming growth factor beta 1 (Tgf-β1) expression. The results indicate an important role of Rdh13 and suggest RDH13 as a possible new therapeutic target for CCl4-induced fibrosis...
January 4, 2017: Toxicology Letters
https://www.readbyqxmd.com/read/27863384/a-novel-highly-potent-trivalent-tgf-%C3%AE-receptor-trap-inhibits-early-stage-tumorigenesis-and-tumor-cell-invasion-in-murine-pten-deficient-prostate-glands
#14
Tai Qin, Lindsey Barron, Lu Xia, Haojie Huang, Maria M Villarreal, John Zwaagstra, Cathy Collins, Junhua Yang, Christian Zwieb, Ravindra Kodali, Cynthia S Hinck, Sun Kyung Kim, Robert L Reddick, Chang Shu, Maureen D O'Connor-McCourt, Andrew P Hinck, Lu-Zhe Sun
The effects of transforming growth factor beta (TGF-β) signaling on prostate tumorigenesis has been shown to be strongly dependent on the stage of development, with TGF-β functioning as a tumor suppressor in early stages of disease and as a promoter in later stages. To study in further detail the paradoxical tumor-suppressive and tumor-promoting roles of the TGF-β pathway, we investigated the effect of systemic treatment with a TGF-β inhibitor on early stages of prostate tumorigenesis. To ensure effective inhibition, we developed and employed a novel trivalent TGF-β receptor trap, RER, comprised of domains derived from the TGF-β type II and type III receptors...
November 14, 2016: Oncotarget
https://www.readbyqxmd.com/read/27814632/implication-of-cd38-gene-in-autophagic-degradation-of-collagen-i-in-mouse-coronary-arterial-myocytes
#15
Jun-Xiang Bao, Qin-Fang Zhang, Mi Wang, Min Xia, Krishna M Boini, Erich Gulbins, Yang Zhang, Pin-Lan Li
Collagen deposition is a hallmark of atherosclerosis. Although compromised collagen I degradation has been implied in the pathogenesis of atherosclerosis, the molecular mechanisms are still unclear. Thus, we determined the role of CD38, an enzyme involved in cellular calcium modulation and autophagic flux, in the regulation of collagen I degradation in coronary arterial myocytes (CAMs).In primary cultured CAMs from CD38(-/-) mice, collagen I protein accumulation but not mRNA abundance was significantly increased compared with cells from CD38(+/+) mice either under control or upon TGF-Beta stimulation...
January 1, 2017: Frontiers in Bioscience (Landmark Edition)
https://www.readbyqxmd.com/read/27814572/tgf-beta1-wnt-and-shh-signaling-in-tumor-progression-and-in-fibrotic-diseases
#16
Maria D Castellone, Mikko O Laukkanen
Activation of resting fibroblasts to myofibroblasts characterizes several physiological and pathological conditions, from wound healing to aggressive metastatic cancers. In tissue damage, including wound healing, fibroblasts are activated in response to injury for a limited period of time to stimulate the healing process. Similar biological mechanisms are maintained in pathological conditions, e.g., scleroderma and cancer, where myofibroblasts persist in producing cytokines and growth factors to drive the development of fibrosis and the progression of disease...
January 1, 2017: Frontiers in Bioscience (Scholar Edition)
https://www.readbyqxmd.com/read/27803787/anti-inflammatory-effect-of-yu-ping-feng-san-via-tgf-%C3%AE-1-signaling-suppression-in-rat-model-of-copd
#17
Zhong-Shan Yang, Jin-Yuan Yan, Ni-Ping Han, Wei Zhou, Yu Cheng, Xiao-Mei Zhang, Ning Li, Jia-Li Yuan
OBJECTIVES: Yu-Ping-Feng-San (YPFS) is a classical traditional Chinese medicine that is widely used for treatment of the diseases in respiratory systems, including chronic obstructive pulmonary disease (COPD) recognized as chronic inflammatory disease. However, the molecular mechanism remains unclear. Here we detected the factors involved in transforming growth factor beta 1 (TGF-β1)/Smad2 signaling pathway and inflammatory cytokines, to clarify whether YPFS could attenuate inflammatory response dependent on TGF-β1/Smad2 signaling in COPD rats or cigarette smoke extract (CSE)-treated human bronchial epithelial (Beas-2B) cells...
September 2016: Iranian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/27769861/activin-a-smads-signaling-pathway-negatively-regulates-oxygen-glucose-deprivation-induced-autophagy-via-suppression-of-jnk-and-p38-mapk-pathways-in-neuronal-pc12-cells
#18
Long-Xing Xue, Zhong-Hang Xu, Jiao-Qi Wang, Cui Yang, Hong-Yu Liu, Wen-Zhao Liang, Qiu-Ye Ji, Jin-Ting He, Yan-Kun Shao, Jing Mang, Zhong-Xin Xu
Activin A (Act A), a member of the transforming growth factor-beta (TGF-β), reduces neuronal apoptosis during cerebral ischemia through Act A/Smads signaling pathway. However, little is known about the effect of Act A/Smads pathway on autophagy in neurons. Here, we found that oxygen-glucose deprivation (OGD)-induced autophagy was suppressed by exogenous Act A in a concentration-dependent manner and enhanced by Act A/Smads pathway inhibitor (ActRIIA-Ab) in neuronal PC12 cells. These results indicate that Act A/Smads pathway negatively regulates autophagy in OGD-treated PC12 cells...
October 18, 2016: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/27763636/znf32-contributes-to-the-induction-of-multidrug-resistance-by-regulating-tgf-%C3%AE-receptor-2-signaling-in-lung-adenocarcinoma
#19
Jun Li, Jie Ao, Kai Li, Jie Zhang, Yanyan Li, Le Zhang, Yuyan Wei, Di Gong, Junping Gao, Weiwei Tan, Lugang Huang, Lunxu Liu, Ping Lin, Yuquan Wei
Multidrug resistance (MDR) is one of the most important contributors to the high mortality of cancer and remains a major concern. We previously found that zinc finger protein 32 (ZNF32), an important transcription factor associated with cancer in Homo sapiens, protects tumor cells against cell death induced by oxidative stress and other stimuli. We thus hypothesized that ZNF32 might enable the tolerance of cancer cells to anti-tumor drugs because higher ZNF32 expression has been found in cancer tissues and in drug-resistant lung adenocarcinoma (AC) cells...
October 20, 2016: Cell Death & Disease
https://www.readbyqxmd.com/read/27742777/pnpla3-overexpression-results-in-reduction-of-proteins-predisposing-to-fibrosis
#20
Piero Pingitore, Paola Dongiovanni, Benedetta Maria Motta, Marica Meroni, Saverio Massimo Lepore, Rosellina Margherita Mancina, Serena Pelusi, Cristina Russo, Andrea Caddeo, Giorgio Rossi, Tiziana Montalcini, Arturo Pujia, Olov Wiklund, Luca Valenti, Stefano Romeo
Liver fibrosis is a pathological scarring response to chronic hepatocellular injury and hepatic stellate cells (HSCs) are key players in this process. PNPLA3 I148M is a common variant robustly associated with liver fibrosis but the mechanisms underlying this association are unknown. We aimed to examine a) the effect of fibrogenic and proliferative stimuli on PNPLA3 levels in HSCs and b) the role of wild type and mutant PNPLA3 overexpression on markers of HSC activation and fibrosis.Here, we show that PNPLA3 is upregulated by the fibrogenic cytokine transforming growth factor-beta (TGF-β), but not by platelet-derived growth factor (PDGF), and is involved in the TGF-β-induced reduction in lipid droplets in primary human HSCs...
October 13, 2016: Human Molecular Genetics
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