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CXCL1 TGF-beta

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https://www.readbyqxmd.com/read/26308715/effect-of-silodosin-an-alpha1a-adrenoceptor-antagonist-on-ventral-prostatic-hyperplasia-in-the-spontaneously-hypertensive-rat
#1
Shogo Shimizu, Takahiro Shimizu, Panagiota Tsounapi, Youichirou Higashi, Darryl T Martin, Kumiko Nakamura, Masashi Honda, Keiji Inoue, Motoaki Saito
BACKGROUND: A decreased prostatic blood flow could be one of the risk factors for benign prostatic hyperplasia/benign prostatic enlargement. The spontaneously hypertensive rat (SHR) shows a chronic prostatic ischemia and hyperplastic morphological abnormalities in the ventral prostate. The effect of silodosin, a selective alpha1A-adrenoceptor antagonist, was investigated in the SHR prostate as a prostatic hyperplasia model focusing on prostatic blood flow. METHODS: Twelve-week-old male SHRs were administered perorally with silodosin (100 μg/kg/day) or vehicle once daily for 6 weeks...
2015: PloS One
https://www.readbyqxmd.com/read/26058518/myeloperoxidase-hepatocyte-stellate-cell-cross-talk-promotes-hepatocyte-injury-and-fibrosis-in-experimental-nonalcoholic-steatohepatitis
#2
Benjamin Pulli, Muhammad Ali, Yoshiko Iwamoto, Matthias W G Zeller, Stefan Schob, Jenny J Linnoila, John W Chen
AIMS: Myeloperoxidase (MPO), a highly oxidative enzyme secreted by leukocytes has been implicated in human and experimental nonalcoholic steatohepatitis (NASH), but the underlying mechanisms remain unknown. In this study, we investigated how MPO contributes to progression from steatosis to NASH. RESULTS: In C57Bl/6J mice fed a diet deficient in methionine and choline to induce NASH, neutrophils and to a lesser extent inflammatory monocytes are markedly increased compared with sham mice and secrete abundant amounts of MPO...
December 1, 2015: Antioxidants & Redox Signaling
https://www.readbyqxmd.com/read/25591042/synergistic-inhibition-of-%C3%AE-2-adrenergic-receptor-mediated-alveolar-epithelial-fluid-transport-by-interleukin-8-and-transforming-growth-factor-%C3%AE
#3
Brant M Wagener, Jérémie Roux, Michel Carles, Jean-Francois Pittet
BACKGROUND: Patients with acute respiratory distress syndrome who retain maximal alveolar fluid clearance (AFC) have better clinical outcomes. The release of endogenous catecholamines associated with shock or the administration of β2-adrenergic receptor (β2AR) agonists enhances AFC via a 3'-5'-cyclic adenosine monophosphate-dependent mechanism. The authors have previously reported that transforming growth factor-β1 (TGF-β1) and interleukin-8 (IL-8), two major mediators of alveolar inflammation associated with the early phase of acute respiratory distress syndrome, inhibit AFC upregulation by β2AR agonists via a phosphoinositol-3-kinase (PI3K)-dependent mechanism...
May 2015: Anesthesiology
https://www.readbyqxmd.com/read/25344051/elevated-cxcl1-expression-in-breast-cancer-stroma-predicts-poor-prognosis-and-is-inversely-associated-with-expression-of-tgf-%C3%AE-signaling-proteins
#4
An Zou, Diana Lambert, Henry Yeh, Ken Yasukawa, Fariba Behbod, Fang Fan, Nikki Cheng
BACKGROUND: CXCL1 is a chemotactic cytokine shown to regulate breast cancer progression and chemo-resistance. However, the prognostic significance of CXCL1 expression in breast cancer has not been fully characterized. Fibroblasts are important cellular components of the breast tumor microenvironment, and recent studies indicate that this cell type is a potential source of CXCL1 expression in breast tumors. The goal of this study was to further characterize the expression patterns of CXCL1 in breast cancer stroma, determine the prognostic significance of stromal CXCL1 expression, and identify factors affecting stromal CXCL1 expression...
2014: BMC Cancer
https://www.readbyqxmd.com/read/25301363/cxcl1-regulation-in-human-pulmonary-epithelial-cells-by-tumor-necrosis-factor
#5
Jiunn-Min Shieh, Yih-Jeng Tsai, Chih-Jen Tsou, Wen-Bin Wu
BACKGROUND/AIMS: The chemokine CXCL1 has been reported to be expressed in lung airway epithelium and non-small cell lung cancer biopsy specimens. In this study, we investigated the effects of TNF-α, an abundant cytokine detected in inflammation and various cancers, on CXCL1 release by human A549 lung carcinoma epithelial cells. METHODS: CXCL1 expression was determined by ELISA and RT-PCR. TNF-α signaling was examined by western blotting. Monocyte migration was assayed by a Transwell migration system...
2014: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/25135616/the-presence-of-clustered-circulating-tumor-cells-ctcs-and-circulating-cytokines-define-an-aggressive-phenotype-in-metastatic-colorectal-cancer
#6
Rosa Divella, Antonella Daniele, Ines Abbate, Antonia Bellizzi, Eufemia Savino, Giovanni Simone, Grazia Giannone, Francesco Giuliani, Vito Fazio, Gennaro Gadaleta-Caldarola, Cosimo Damiano Gadaleta, Ivan Lolli, Carlo Sabbà, Antonio Mazzocca
PURPOSE: Colon carcinoma is a malignant tumor showing a marked preference to metastasize to distant organs. The presence of circulating tumor cells (CTCs) in the peripheral blood is a prerequisite for the formation of distant metastases. However, whether circulating cytokines are linked to the circulation of tumor cells, as individual cells or clusters, remain unclear. In this study, we investigated the circulating levels of TGF-beta, CXCL1, VEGF and PAI-1 as potential bioindicators of the presence of CTCs in patients with metastatic colon cancer...
November 2014: Cancer Causes & Control: CCC
https://www.readbyqxmd.com/read/23791889/neuronal-%C3%AE-1-2-adrenergic-stimulation-of-ifn-%C3%AE-il-6-and-cxcl-1-in-murine-spleen-in-late-experimental-arthritis
#7
COMPARATIVE STUDY
Thomas Meinel, Georg Pongratz, Luise Rauch, Rainer H Straub
OBJECTIVE: Functional cross-talk exists between sympathetic nerve fibers and cytokine-producing splenic cells in early collagen type II-induced arthritis (CIA) (day 32). These earlier experiments demonstrated exclusively neuronal sympathetic regulation of IFN-γ, CXCL1, IL-6, and TGF-β. However, in late arthritis, the sympathetic influence might change due to loss of sympathetic nerve fibers and appearance of neurotransmitter-producing cells. We aimed to investigate neurotransmitter-dependent regulation of IFN-γ, CXCL1, IL-6, and TGF-β in murine spleen in late CIA...
October 2013: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/23769761/dietary-fish-oil-reduces-the-acute-inflammatory-response-and-enhances-resolution-of-antigen-induced-peritonitis
#8
Valgerdur Tomasdottir, Arnor Vikingsson, Jona Freysdottir, Ingibjorg Hardardottir
Dietary n-3 polyunsaturated fatty acids (PUFA) influence the inductive phase of inflammation but less is known about their effects on the resolution phase. This study examined the effects of dietary fish oil on induction and resolution of antigen-induced inflammation in mice. Mice were fed a control diet with or without 2.8% fish oil, immunized twice with methylated BSA (mBSA) and inflammation induced by intraperitoneal injection of mBSA. Prior to and at different time points after mBSA administration, peritoneal cells were analyzed and expression of surface molecules determined by flow cytometry...
October 2013: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/23648197/platelet-rich-plasma-therapy-inflammatory-molecules-involved-in-tissue-healing
#9
E Galliera, M M Corsi, G Banfi
Inflammation represents a fundamental aspect of the healing process. Besides their primary role in hemostasis, platelets play an active role in the immunological and inflammatory aspect of tissue healing. Indeed , they can be directly involved in the inflammatory response by the production and release of several inflammatory mediators, including a variety of cytokines, such as TGF-beta, IL-1 beta, CD40L, and chemokines, such as CXCL7, CXCL4, CXCL4L1, CCl5, CXCL1, CXCL8, CXCL5, CXCL12, CCL2, CCL3. Platelet are not only a source of several chemokine involved in the inflammatory response and tissue healing, but they also express chemokine receptors, in particular CCR1 CCR3 CCR4 and CXCR4, thus being able to being able to regulate the inflammatory response associated to the healing process...
April 2012: Journal of Biological Regulators and Homeostatic Agents
https://www.readbyqxmd.com/read/22770568/biocompatibility-and-degradation-characteristics-of-plga-based-electrospun-nanofibrous-scaffolds-with-nanoapatite-incorporation
#10
Wei Ji, Fang Yang, Hajar Seyednejad, Zhi Chen, Wim E Hennink, James M Anderson, Jeroen J J P van den Beucken, John A Jansen
The aim of current study was to evaluate the effect of nano-apatitic particles (nAp) incorporation on the degradation characteristics and biocompatibility of poly(lactide-co-glycolide) (PLGA)-based nanofibrous scaffolds. Composite PLGA/poly(ɛ-caprolactone) (PCL) blended (w/w = 3/1) polymeric electrospun scaffolds with 0-30 wt% of nAp incorporation (n0-n30) were prepared. The obtained scaffolds were firstly evaluated by morphological, physical and chemical characterization, followed by an in vitro degradation study...
October 2012: Biomaterials
https://www.readbyqxmd.com/read/22708778/treatment-of-diabetic-mice-with-undenatured-whey-protein-accelerates-the-wound-healing-process-by-enhancing-the-expression-of-mip-1%C3%AE-mip-2-kc-cx3cl1-and-tgf-%C3%AE-in-wounded-tissue
#11
Gamal Badr, Badr M Badr, Mohamed H Mahmoud, Mohamed Mohany, Danny M Rabah, Olivier Garraud
BACKGROUND: Continuous diabetes-associated complications are a major source of immune system exhaustion and an increased incidence of infection. Diabetes can cause poor circulation in the feet, increasing the likelihood of ulcers forming when the skin is damaged and slowing the healing of the ulcers. Whey proteins (WPs) enhance immunity during childhood and have a protective effect on some immune disorders. Therefore, in this study, we investigated the effects of camel WP on the healing and closure of diabetic wounds in a streptozotocin (STZ)-induced type I diabetic mouse model...
2012: BMC Immunology
https://www.readbyqxmd.com/read/22408746/tgf-%C3%AE-receptor-ii-loss-promotes-mammary-carcinoma-progression-by-th17-dependent-mechanisms
#12
Sergey V Novitskiy, Michael W Pickup, Agnieszka E Gorska, Philip Owens, Anna Chytil, Mary Aakre, Huiyun Wu, Yu Shyr, Harold L Moses
We report that IL-17 significantly increases the secretion of CXCL1 and CXCL5 from mammary carcinoma cells, which is downregulated by TGF-β through the type II TGF-β receptor (TβRII). Carcinoma cells with conditional knockout of TβRII (Tgfbr2(KO)) have enhanced sensitivity to IL-17a in the stimulation of chemokine secretion. During polyoma middle T (PyMT) induced tumor progression, levels of Th17 inducing cytokines TGF-β, IL-6, IL-23 were increased in PyMT/Tgfbr2(KO) tumors, which was associated with an increased number of Th17 cells...
October 2011: Cancer Discovery
https://www.readbyqxmd.com/read/22363622/neonatal-periostin-knockout-mice-are-protected-from-hyperoxia-induced-alveolar-simplication
#13
Paul D Bozyk, J Kelley Bentley, Antonia P Popova, Anuli C Anyanwu, Marisa D Linn, Adam M Goldsmith, Gloria S Pryhuber, Bethany B Moore, Marc B Hershenson
In bronchopulmonary dysplasia (BPD), alveolar septae are thickened with collagen and α-smooth muscle actin, transforming growth factor (TGF)-β-positive myofibroblasts. Periostin, a secreted extracellular matrix protein, is involved in TGF-β-mediated fibrosis and myofibroblast differentiation. We hypothesized that periostin expression is required for hypoalveolarization and interstitial fibrosis in hyperoxia-exposed neonatal mice, an animal model for this disease. We also examined periostin expression in neonatal lung mesenchymal stromal cells and lung tissue of hyperoxia-exposed neonatal mice and human infants with BPD...
2012: PloS One
https://www.readbyqxmd.com/read/22290877/loss-of-tgf-%C3%AE-responsiveness-in-prostate-stromal-cells-alters-chemokine-levels-and-facilitates-the-development-of-mixed-osteoblastic-osteolytic-bone-lesions
#14
Xiaohong Li, Julie A Sterling, Kang-Hsien Fan, Robert L Vessella, Yu Shyr, Simon W Hayward, Lynn M Matrisian, Neil A Bhowmick
Loss of TGF-β type II receptor (TβRII, encoded by Tgfbr2) expression in the prostate stroma contributes to prostate cancer initiation, progression, and invasion. We evaluated whether TβRII loss also affected prostate cancer bone metastatic growth. Immunohistologic analysis revealed that TβRII expression was lost in cancer-associated fibroblasts in human prostate cancer bone metastatic tissues. We recapitulated the human situation with a conditional stromal Tgfbr2 knockout (Tgfbr2-KO) mouse model. Conditioned media from primary cultured Tgfbr2-KO or control Tgfbr2-flox prostatic fibroblasts (koPFCM or wtPFCM, respectively) were applied to C4-2B prostate cancer cells before grafting the cells tibially...
April 2012: Molecular Cancer Research: MCR
https://www.readbyqxmd.com/read/21767631/sympathetic-inhibition-of-il-6-ifn-%C3%AE-and-kc-cxcl1-and-sympathetic-stimulation-of-tgf-%C3%AE-in-spleen-of-early-arthritic-mice
#15
Rainer H Straub, Luise Rauch, Lena Rauh, Georg Pongratz
OBJECTIVES: The connection between sympathetic nerve fibers and immune cells in the spleen is known. In the context of arthritis, the functional meaning of the neuroimmune contact remains unclear. From immunization until disease outbreak, the sympathetic nervous system (SNS) has a proinflammatory influence which is converted into an anti-inflammatory influence after disease outbreak. This study investigated the influence of neuronally released neurotransmitters on IFN-γ, KC (CXCL1), IL-6, and TGF-β in spleen of mice shortly after outbreak of collagen type II-induced arthritis...
November 2011: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/20854815/albumin-activates-the-canonical-tgf-receptor-smad-signaling-pathway-but-this-is-not-required-for-activation-of-astrocytes
#16
Hantamalala Ralay Ranaivo, Fatima Patel, Mark S Wainwright
The use of albumin as a resuscitation fluid is considered safe for most critically ill patients. However, clinical data suggest albumin may increase mortality in neurotrauma, but improve outcome after stroke. Albumin has been shown to activate glia, and to play a role in the mechanisms of epileptogenesis via the TGFβ-receptor (TGFβR). We have previously shown that albumin induces the production of inflammatory mediators including IL-1β via activation of MAPK pathways in primary astrocytes and microglia. The extracellular signaling mechanisms leading to the activation of glial cells in response to albumin are not well understood...
December 2010: Experimental Neurology
https://www.readbyqxmd.com/read/20331977/astrocytes-modulate-the-chemokine-network-in-a-pathogen-specific-manner
#17
Clive S McKimmie, Gerard J Graham
Immune responses in the central nervous system (CNS) are carefully regulated. Despite the absence of most immune processes and a substantive blood brain barrier, potent immune responses form during infection and autoimmunity. Astrocytes are innate immune sentinels that ensheath parenchymal blood vessels and sit at the gateway to the CNS parenchyma. Viral and bacterial infections trigger the influx of distinct leukocyte subsets. We show that astrocytes alone are sufficient for distinguishing between these two main types of infection and triggers release of relevant chemokines that relate to the microbe recognised...
April 16, 2010: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/19940328/-th17-cells-in-the-pathogenesis-of-multiple-sclerosis
#18
REVIEW
Marek Juszczak, Andrzej Głabiński
Th17 cells are a recently described subset of T helper lymphocytes characterized by the production of IL-17 (IL-17A). Since their discovery in 2003, studies on Th17 cells have become increasingly popular among immunologists and they have emerged as key players in the pathogenesis of multiple sclerosis (MS) and other autoimmune disorders traditionally attributed to Th1 cells. Murine Th17 lymphocytes differentiate from naive CD4+ cells in a specific cytokine environment, which includes TGF-b and IL-6 or IL-21, whereas human Th17 cell development requires TGF-beta, IL-1b, and IL-2 in combination with IL-6, IL-21, or IL-23...
October 23, 2009: Postȩpy Higieny i Medycyny Doświadczalnej
https://www.readbyqxmd.com/read/19451693/abrogation-of-tgf-beta-signaling-enhances-chemokine-production-and-correlates-with-prognosis-in-human-breast-cancer
#19
Brian Bierie, Christine H Chung, Joel S Parker, Daniel G Stover, Nikki Cheng, Anna Chytil, Mary Aakre, Yu Shyr, Harold L Moses
In human breast cancer, loss of carcinoma cell-specific response to TGF-beta signaling has been linked to poor patient prognosis. However, the mechanisms through which TGF-beta regulates these processes remain largely unknown. In an effort to address this issue, we have now identified gene expression signatures associated with the TGF-beta signaling pathway in human mammary carcinoma cells. The results strongly suggest that TGF-beta signaling mediates intrinsic, stromal-epithelial, and host-tumor interactions during breast cancer progression, at least in part, by regulating basal and oncostatin M-induced CXCL1, CXCL5, and CCL20 chemokine expression...
June 2009: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/19050275/dendritic-cell-il-23-and-il-1-production-in-response-to-schistosome-eggs-induces-th17-cells-in-a-mouse-strain-prone-to-severe-immunopathology
#20
COMPARATIVE STUDY
Mara G Shainheit, Patrick M Smith, Lindsey E Bazzone, Andrew C Wang, Laura I Rutitzky, Miguel J Stadecker
Infection with schistosomes results in a CD4 T cell-mediated inflammatory reaction against parasite eggs that varies greatly in magnitude both in humans as well as in mice. In the murine disease, the severe form of immunopathology correlates with high levels of IL-17. We now report that live schistosome eggs stimulate dendritic cells from high pathology-prone CBA mice to produce IL-12p40, IL-6, and TGF-beta, whereas those from low pathology-prone BL/6 mice only make TGF-beta. Moreover, egg-stimulated dendritic cells plus naive CD4 T cells from CBA mice resulted in increased levels of IL-6, IL-23, IL-1beta, as well as IL-17 and the chemokines CXCL1, CXCL2, and CCL2, whereas similarly treated BL/6 cell cocultures instead expressed higher IL-4, IL-5, IL-10, and the transcription factor Foxp3...
December 15, 2008: Journal of Immunology: Official Journal of the American Association of Immunologists
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