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https://www.readbyqxmd.com/read/28078601/inhibition-of-epithelial-mesenchymal-transition-and-metastasis-by-combined-tgfbeta-knockdown-and-metformin-treatment-in-a-canine-mammary-cancer-xenograft-model
#1
Camila Leonel, Thaiz Ferraz Borin, Lívia de Carvalho Ferreira, Marina Gobbe Moschetta, Marcio Chaim Bajgelman, Alicia M Viloria-Petit, Debora Aparecida Pires de Campos Zuccari
Epithelial mesenchymal transition (EMT) is a process by which epithelial cells acquire mesenchymal properties, generating metastases. Transforming growth factor beta (TGF-β) is associated with this malignancy by having the ability to induce EMT. Metformin, has been shown to inhibit EMT in breast cancer cells. Based on this evidence we hypothesize that treatment with metformin and the silencing of TGF-β, inhibits the EMT in cancer cells. Canine metastatic mammary tumor cell line CF41 was stably transduced with a shRNA-lentivirus, reducing expression level of TGF-β1...
January 11, 2017: Journal of Mammary Gland Biology and Neoplasia
https://www.readbyqxmd.com/read/28067794/the-tgf-%C3%AE-smad4-signaling-pathway-in-pancreatic-carcinogenesis-and-its-clinical-significance
#2
REVIEW
Sunjida Ahmed, Azore-Dee Bradshaw, Shweta Gera, M Zahidunnabi Dewan, Ruliang Xu
Pancreatic ductal adenocarcinoma (PDAC) is one of the most fatal human cancers due to its complicated genomic instability. PDAC frequently presents at an advanced stage with extensive metastasis, which portends a poor prognosis. The known risk factors associated with PDAC include advanced age, smoking, long-standing chronic pancreatitis, obesity, and diabetes. Its association with genomic and somatic mutations is the most important factor for its aggressiveness. The most common gene mutations associated with PDAC include KRas2, p16, TP53, and Smad4...
January 5, 2017: Journal of Clinical Medicine
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/28063004/tubulin-alpha-8-is-expressed-in-hepatic-stellate-cells-and-is-induced-in-transformed-hepatocytes
#4
Lisa Rein-Fischboeck, Rebekka Pohl, Elisabeth M Haberl, Sebastian Zimny, Maximilian Neumann, Kristina Eisinger, Thomas S Weiss, Sabrina Krautbauer, Christa Buechler
Tubulin alpha 8 (TUBA8) is highly abundant in murine liver tumors suggesting a role in hepatocellular carcinoma (HCC). Non-alcoholic steatohepatitis (NASH) is a risk factor for HCC. In mice that are fed with a methionine-choline deficient diet for two weeks to induce advanced murine NASH, we do see increased hepatic levels of TUBA8 protein. In animals given a high-fat diet for 14 weeks or an atherogenic diet for 12 weeks, hepatic TUBA8 is unchanged. TUBA8 is highly expressed in human hepatic stellate cells (HSC) and co-localizes with the HSC marker desmin in the murine liver...
January 7, 2017: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/28060893/positioning-of-tacrolimus-for-the-treatment-of-diabetic-nephropathy-based-on-computational-network-analysis
#5
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/28055980/immunohistochemical-profiling-of-receptor-tyrosine-kinases-med12-and-tgf-%C3%AE-rii-of-surgically-resected-small-cell-lung-cancer-and-the-potential-of-c-kit-as-a-prognostic-marker
#6
Hiroshi Yokouchi, Hiroshi Nishihara, Toshiyuki Harada, Takashi Ishida, Shigeo Yamazaki, Hajime Kikuchi, Satoshi Oizumi, Weidong Ma, Yajie Fan, Congxia Wang, Kenji Akie, Fumiko Sugaya, Yuka Fujita, Kei Takamura, Tetsuya Kojima, Mitsunori Higuchi, Osamu Honjo, Yoshinori Minami, Naomi Watanabe, Aya Goto, Hiroyuki Suzuki, Hirotoshi Dosaka-Akita, Hiroshi Isobe, Masaharu Nishimura, Mitsuru Munakata
The limited number of available treatments for patients with small-cell lung cancer (SCLC) has prompted us to further investigate the biology of SCLC by molecular profiling. We collected formalin-fixed paraffin-embedded tumor samples from 127 patients with SCLC, who had undergone surgery at 16 institutions between January 2003 and January 2013, and analyzed the association between disease-specific survival and protein expression of c-kit, c-Met, epidermal growth factor receptor, human EGFR-related 2, vascular endothelial growth factor receptor II, anaplastic lymphoma kinase, mediator complex subunit 12 (MED12), and transforming growth factor beta receptor II (TGF-βRII) by immunohistochemistry (IHC)...
December 31, 2016: Oncotarget
https://www.readbyqxmd.com/read/28052022/abnormal-expression-of-tgf-beta-type-ii-receptor-isoforms-contributes-to-acute-myeloid-leukemia
#7
Yong Wu, Min Su, ShuX Zhang, Yu Cheng, Xiao Y Liao, Bao Y Lin, Yuan Z Chen
Altered transforming growth factor-beta (TGF-β) signaling has been implicated in the pathogenesis of leukemia. Although TGF-β type II receptor (TβRII) isoforms have been isolated from human leukemia cells, their expression patterns and functions of these variants are unclear. In this study, we determined that two TβRII isoforms (TβRII and TβRII-B) are abnormally expressed in leukemic cells, as compared to normal hematopoietic cells. TβRII-B, but not TβRII, was found to promote cell cycle arrest, apoptosis, and differentiation of leukemic cells...
December 28, 2016: Oncotarget
https://www.readbyqxmd.com/read/28051272/tgf-%C3%AE-1-factor-in-the-cerebrovascular-diseases-of-alzheimer-s-disease
#8
X Zhang, W-J Huang, W-W Chen
Transforming growth factor betas (TGF-βs) belong to three isoforms (TGF-β1, TGF-β2 and TGF-β3) members of a large pleiotropic superfamily of around 100 distinct proteins participating in the regulation of key events of development and disease, and tissue repair. In the central nervous system (CNS), all the three isoforms are produced by both glial and neuronal cells and are involved in essential tissue functions such as cell-cycle control, regulation of early development and differentiation, neuronal survival and astrocytes differentiation...
December 2016: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28043294/-effects-of-huanglian-ointment-on-wound-healing-of-mice-with-full-thickness-skin-defect-and-the-related-mechanism
#9
X F Zhang, G F Sun, Y F Chen, J Y Ma, C F Gao, X Sheng, D X Feng
Objective: To observe the effects of Huanglian ointment on wound healing of mice with full-thickness skin defect, and to explore the related mechanism. Methods: Thirty male C57BL/6J mice were divided into Huanglian ointment group and vehicle group according to the random number table after round wounds of full-thickness skin defect with diameter of 7.5 mm were inflicted on the back of each mouse, with 15 mice in each group. Wounds of mice in Huanglian ointment group and vehicle group were treated with Huanglian ointment and vehicle respectively from post injury day (PID) 1 on, 2 times each day...
December 20, 2016: Zhonghua Shao Shang za Zhi, Zhonghua Shaoshang Zazhi, Chinese Journal of Burns
https://www.readbyqxmd.com/read/28042775/inhibition-of-epithelial-mesenchymal-transition-in-response-to-treatment-with-metformin-and-y27632-in-breast-cancer-cell-lines
#10
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/28035069/pdgf-d-promotes-cell-growth-aggressiveness-angiogenesis-and-emt-transformation-of-colorectal-cancer-by-activation-of-notch1-twist1-pathway
#11
Jinhuang Chen, Wenzheng Yuan, Liang Wu, Qiang Tang, Qinghua Xia, Jintong Ji, Zhengyi Liu, Zhijun Ma, Zili Zhou, Yifeng Cheng, Xiaogang Shu
Platelet-derived growth factor-D (PDGF-D) plays a crucial role in the progression of several cancers. However, its role in colorectal cancer (CRC) remains unclear. Our study showed that PDGF-D was highly expressed in CRC tissues and was positively associated with the clinicopathological features. Down-regulation of PDGF-D inhibited the tumor growth, migration and angiogenesis of SW480 cells in vitro and in vivo. Whereas up-regulation of PDGF-D promoted the malignant behaviors of HCT116 cells. Moreover, PDGF-D up-regulated the expression of Notch1 and Twist1 in CRC cells...
December 27, 2016: Oncotarget
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
#12
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/28006004/downregulation-of-tgf-%C3%AE-receptor-2-expression-and-signaling-through-inhibition-of-na-k-atpase
#13
Jennifer La, Eleanor Reed, Lan Chan, Larisa V Smolyaninova, Olga A Akomova, Gökhan M Mutlu, Sergei N Orlov, Nickolai O Dulin
Transforming growth factor-beta (TGF-β) is a multi-functional cytokine implicated in the control of cell growth and differentiation. TGF-β signals through a complex of TGF-β receptors 1 and 2 (TGFβR1 and TGFβR2) that phosphorylate and activate Smad2/3 transcription factors driving transcription of the Smad-target genes. The Na+/K+-ATPase is an integral plasma membrane protein critical for maintaining the electro-chemical gradient of Na+ and K+ in the cell. We found that inhibition of the Na+/K+ ATPase by ouabain results in a dramatic decrease in the expression of TGFβR2 in human lung fibrobalsts (HLF) at the mRNA and protein levels...
2016: PloS One
https://www.readbyqxmd.com/read/28004118/peg10-is-imperative-for-tgf-%C3%AE-1-induced-epithelial%C3%A2-mesenchymal-transition-in-hepatocellular-carcinoma
#14
Minfeng Zhang, Chengjun Sui, Binghua Dai, Weifeng Shen, Jiongjiong Lu, Jiamei Yang
Substantial evidence indicates that transforming growth factor-beta 1 (TGF-β1) plays a vital role in epithelial-mesenchymal transition (EMT). PEG10 has been shown involved in invasion and metastasis of tumors. The present study investigated the role of PEG10 in TGF-β1-triggered EMT in hepatocellular carcinoma (HCC) progression. Immunohistochemistry and real-time PCR were used to measure the expression level of PEG10 in clinical HCC tissues with or without lymph node metastasis, and normal tissues. The results showed that PEG10 expression is higher in HCC tissues and associated with overall survival (OS) and lymph node metastasis...
January 2017: Oncology Reports
https://www.readbyqxmd.com/read/28002795/sodium-fluoride-naf-causes-toxic-effects-on-splenic-development-in-mice
#15
Ping Kuang, Huidan Deng, Hengmin Cui, Lian Chen, Jing Fang, Zhicai Zuo, Junliang Deng, Xun Wang, Ling Zhao
At present, very limited studies focus on the toxic effect of sodium fluoride (NaF) on splenic development of human and animals in vivo. This study was firstly designed to evaluate the toxic effects of NaF on the splenic development of mice in vivo by observing histopathological lesions, changes of splenic growth index (GI), T and B cells, immunoglobulin A (IgA), immunoglobulin G (IgG) and immunoglobulin M (IgM) contents, cytokine protein expression levels, and cell cycle and cyclins/cdks protein expression levels using the methods of pathology, flow cytometry (FCM), western blot (WB), and enzyme-linked immunosorbent assay (ELISA)...
December 16, 2016: Oncotarget
https://www.readbyqxmd.com/read/27999774/hyal-2-wwox-smad4-signaling-in-cell-death-and-anticancer-response
#16
REVIEW
Li-Jin Hsu, Ming-Fu Chiang, Chun-I Sze, Wan-Pei Su, Ye Vone Yap, I-Ting Lee, Hsiang-Ling Kuo, Nan-Shan Chang
Hyaluronidase HYAL-2 is a membrane-anchored protein and also localizes, in part, in the lysosome. Recent study from animal models revealed that both HYAL-1 and HYAL-2 are essential for the metabolism of hyaluronan (HA). Hyal-2 deficiency is associated with chronic thrombotic microangiopathy with hemolytic anemia in mice due to over accumulation of high molecular size HA. HYAL-2 is essential for platelet generation. Membrane HYAL-2 degrades HA bound by co-receptor CD44. Also, in a non-canonical signal pathway, HYAL-2 serves as a receptor for transforming growth factor beta (TGF-β) to signal with downstream tumor suppressors WWOX and SMAD4 to control gene transcription...
2016: Frontiers in Cell and Developmental Biology
https://www.readbyqxmd.com/read/27995168/data-on-the-effect-of-pro-fibrotic-cytokine-tgf-%C3%AE-on-hepatic-stellate-cell-autophagy
#17
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/27992693/scleroderma-peripheral-b-lymphocytes-secrete-interleukin-6-and-tgf-%C3%AE-and-activate-fibroblasts
#18
Nicolas Dumoitier, Benjamin Chaigne, Alexis Régent, Sébastien Lofek, Maïssa Mhibik, Peter Dorfmüller, Benjamin Terrier, Jonathan London, Alice Bérezné, Nicolas Tamas, Nadine Varin-Blank, Luc Mouthon
OBJECTIVE: To study the role of B lymphocytes in systemic sclerosis (SSc). PATIENTS AND METHODS: Peripheral B cell subpopulations, interleukin 6 (IL-6) and transforming growth factor-beta (TGF-β) productions were analyzed using flow cytometry and multiplex assay. Fibroblasts proliferation rate upon incubation with supernatants of B cells isolated from SSc patients or healthy controls (HC) was assessed using XTT, BrdU and Ki67. Collagen production was assessed using a collagen assay...
December 19, 2016: Arthritis & Rheumatology
https://www.readbyqxmd.com/read/27989857/evaluation-of-plga-containing-anti-ctla4-inhibited-endometriosis-progression-by-regulating-cd4-cd25-treg-cells-in-peritoneal-fluid-of-mouse-endometriosis-model
#19
Qi Liu, Pingchuan Ma, Lanxia Liu, Guilei Ma, Jingjing Ma, Xiaoxuan Liu, Yijin Liu, Wanjun Lin, Yingjun Zhu
Our study investigated poly(lactic-co-glycolic acid) (PLGA) as protein delivery vehicles encapsulate CTLA-4-antibody(anti-CTLA-4) which is essential for CD4+CD25+Treg cells suppressive function exposing superior potential for inhibiting endometriosis progress in mouse model than single anti-CTLA-4. Anti-CTLA-4 loaded PLGA combined to ligands CTLA-4 in surface of CD4+CD25+Treg cells which distributed in peritoneal fluid of mouse endometriosis model. The particle size,zeta potential of the anti-CTLA-4 loaded nanoparticles was detected by dynamic light scattering...
October 29, 2016: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/27989094/histopathological-and-immunohistochemical-evaluation-of-pannus-tissue-in-patients-with-prosthetic-valve-dysfunction
#20
Süleyman Karakoyun, Mustafa Ozan Gürsoy, Mahmut Yesin, Macit Kalçık, Mehmet Ali Astarcıoğlu, Sabahattin Gündüz, Ali Emrah Oğuz, Şermin Çoban Kökten, Ayşe Nimet Karadayı, Altuğ Tuncer, Cengiz Köksal, Tayyar Gökdeniz, Mehmet Özkan
BACKGROUND: Prosthetic valve dysfunction due to pannus formation is a rare but serious complication. Currently, limited data are available concerning the pathogenesis and immunohistochemical properties of pannus. The study aim was to investigate the morphological, histopathological and immunohistochemical characteristics of pannus formation in patients with prosthetic valve dysfunction. METHODS: A total of 35 patients (10 males, 25 females; mean age 44 ± 16 years) who had undergone re-do valve surgery due to prosthetic valve obstruction was enrolled in the study...
2016: Journal of Heart Valve Disease
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