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https://www.readbyqxmd.com/read/28532450/lps-induced-systemic-inflammation-reveals-an-immunomodulatory-role-for-the-prion-protein-at-the-blood-brain-interface
#1
Ø Salvesen, M R Reiten, A Espenes, M K Bakkebø, M A Tranulis, C Ersdal
BACKGROUND: The cellular prion protein (PrP(C)) is an evolutionary conserved protein abundantly expressed not only in the central nervous system but also peripherally including the immune system. A line of Norwegian dairy goats naturally devoid of PrP(C) (PRNP (Ter/Ter)) provides a novel model for studying PrP(C) physiology. METHODS: In order to explore putative roles for PrP(C) in acute inflammatory responses, we performed a lipopolysaccharide (LPS, Escherichia coli O26:B6) challenge of 16 goats (8 PRNP (+/+) and 8 PRNP (Ter/Ter)) and included 10 saline-treated controls (5 of each PRNP genotype)...
May 22, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28465475/down-regulation-of-mir-29b-in-carcinoma-associated-fibroblasts-promotes-cell-growth-and-metastasis-of-breast-cancer
#2
Yonglei Liu, Jingling Zhang, Xiangjun Sun, Quanping Su, Cuiping You
Carcinoma associated fibroblasts (CAFs) play important roles in breast cancer development and progression. Recent studies show that microRNAs (miRNAs) are the main regulators in CAFs. MiR-29b is one of the significant down-regulated miRNAs in CAFs from the miRNA screening. The role of miR-29b in the interaction between CAFs and breast cancer is still unclear. In the present study, we investigated the effects of CAFs on breast cancer cell proliferation and metastasis regulated by miR-29b. We found that fibroblasts activated by co-cultured breast cancer cells produced higher levels of some chemokines like CCL11, CXCL14, which accelerated breast cancer cell growth and induced drug resistance and metastasis...
April 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/28386116/cancer-associated-noncoding-mutations-affect-rna-g-quadruplex-mediated-regulation-of-gene-expression
#3
Mahdi Zeraati, Aaron L Moye, Jason W H Wong, Dilmi Perera, Mark J Cowley, Daniel U Christ, Tracy M Bryan, Marcel E Dinger
Cancer is a multifactorial disease driven by a combination of genetic and environmental factors. Many cancer driver mutations have been characterised in protein-coding regions of the genome. However, mutations in noncoding regions associated with cancer have been less investigated. G-quadruplex (G4) nucleic acids are four-stranded secondary structures formed in guanine-rich sequences and prevalent in the regulatory regions. In this study, we used published whole cancer genome sequence data to find mutations in cancer patients that overlap potential RNA G4-forming sequences in 5' UTRs...
April 6, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28382159/a-crucial-role-of-cxcl14-for-promoting-regulatory-t-cells-activation-in-stroke
#4
Hsu-Tung Lee, Shih-Ping Liu, Chen-Huan Lin, Sophie Wei Lee, Chung Y Hsu, Huey-Kang Sytwu, Chia-Hung Hsieh, Woei-Cherng Shyu
Inflammatory processes have a detrimental role in the pathophysiology of ischemic stroke. However, little is known about the endogenous anti-inflammatory mechanisms in ischemic brain. Here, we identify CXCL14 as a critical mediator of these mechanisms. CXCL14 levels were upregulated in the ischemic brains of humans and rodents. Moreover, hypoxia inducible factor-1α (HIF-1α) drives hypoxia- or cerebral ischemia (CI)-dependent CXCL14 expression via directly binding to the CXCL14 promoter. Depletion of CXCL14 inhibited the accumulation of immature dendritic cells (iDC) or regulatory T cells (Treg) and increased the infarct volume, whereas the supplementation of CXCL14 had the opposite effects...
2017: Theranostics
https://www.readbyqxmd.com/read/28360196/epithelial-chemokine-cxcl14-synergizes-with-cxcl12-via-allosteric-modulation-of-cxcr4
#5
Paul J Collins, Michelle L McCully, Laura Martínez-Muñoz, César Santiago, James Wheeldon, Stephan Caucheteux, Sylvia Thelen, Valentina Cecchinato, Julia M Laufer, Vladimir Purvanov, Yoan R Monneau, Hugues Lortat-Jacob, Daniel F Legler, Mariagrazia Uguccioni, Marcus Thelen, Vincent Piguet, Mario Mellado, Bernhard Moser
The chemokine receptor, CXC chemokine receptor 4 (CXCR4), is selective for CXC chemokine ligand 12 (CXCL12), is broadly expressed in blood and tissue cells, and is essential during embryogenesis and hematopoiesis. CXCL14 is a homeostatic chemokine with unknown receptor selectivity and preferential expression in peripheral tissues. Here, we demonstrate that CXCL14 synergized with CXCL12 in the induction of chemokine responses in primary human lymphoid cells and cell lines that express CXCR4. Combining subactive concentrations of CXCL12 with 100-300 nM CXCL14 resulted in chemotaxis responses that exceeded maximal responses that were obtained with CXCL12 alone...
March 30, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/28359053/platelets-as-a-novel-source-of-pro-inflammatory-chemokine-cxcl14
#6
Alexander Witte, Madhumita Chatterjee, Florian Lang, Meinrad Gawaz
OBJECTIVE: Platelets are a major source of chemokines. Here, we demonstrate for the first time that platelets express significant amounts of CXCL14 and disclose powerful effects of platelet-derived CXCL14 on monocyte and endothelial migration. METHODS: The expression of CXCL14 in platelets and in the supernatant of activated platelets was analysed by immunoblotting, ELISA, and flow cytometry. The effect of platelet-derived CXCL14 on monocyte migration was evaluated using a modified Boyden chamber...
2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28277316/cxcl14-cxcr4-and-cxcl12-cxcr4-axes-may-play-important-roles-in-the-unique-invasion-process-of-endometrioid-carcinoma-with-melf-pattern-myoinvasion
#7
Sakiko Kojiro-Sanada, Kaori Yasuda, Shin Nishio, Sachiko Ogasawara, Jun Akiba, Kimio Ushijima, Hirohisa Yano
The term "MELF-pattern myometrial invasion" (MELF pattern) denotes an unusual morphology of myometrial invasion in endometrioid carcinomas, and is associated with frequent lymphovascular invasion and lymph node metastasis. In this study, tumor cells were directly collected from a MELF pattern site, using laser microdissection. Comprehensive microarray analysis of the genes was conducted, and based on the results, expression of a metastasis progression gene, CXCR4, and its ligands CXCL14 and CXCL12, was further investigated...
March 8, 2017: International Journal of Gynecological Pathology
https://www.readbyqxmd.com/read/28259699/chicken-il-26-regulates-immune-responses-through-the-jak-stat-and-nf-%C3%AE%C2%BAb-signaling-pathways
#8
Anh Duc Truong, Yeojin Hong, Cong Thanh Hoang, Janggeun Lee, Yeong Ho Hong
Chicken interleukin 26 (ChIL-26), a member of the IL-10 family, is expressed in T cells and can induce expression of proinflammatory cytokines. We examined the response of signal transduction pathways to ChIL-26 stimulation in the chicken T (CU91), macrophage (HD11), and fibroblast (OU2) cell lines. ChIL-26 activated JAK2 and TYK2 phosphorylation, as well as activation of STAT1, STAT3, and SHP2 via tyrosine/serine residues. We also showed that ChIL-26 activates the phosphorylation of NF-κB1, TAK1, and MyD88 kinase, which are key regulators of NF-κB signaling pathways...
March 2, 2017: Developmental and Comparative Immunology
https://www.readbyqxmd.com/read/28250200/cxcl14-is-a-candidate-biomarker-for-hedgehog-signalling-in-idiopathic-pulmonary-fibrosis
#9
Guiquan Jia, Sanjay Chandriani, Alexander R Abbas, Daryle J DePianto, Elsa N N'Diaye, Murat B Yaylaoglu, Heather M Moore, Ivan Peng, Jason DeVoss, Harold R Collard, Paul J Wolters, Jackson G Egen, Joseph R Arron
BACKGROUND: Idiopathic pulmonary fibrosis (IPF) is associated with aberrant expression of developmental pathways, including Hedgehog (Hh). As Hh signalling contributes to multiple pro-fibrotic processes, Hh inhibition may represent a therapeutic option for IPF. However, no non-invasive biomarkers are available to monitor lung Hh activity. METHODS: We assessed gene and protein expression in IPF and control lung biopsies, mouse lung, fibroblasts stimulated in vitro with sonic hedgehog (SHh), and plasma in IPF patients versus controls, and cancer patients before and after treatment with vismodegib, a Hh inhibitor...
March 1, 2017: Thorax
https://www.readbyqxmd.com/read/28244640/mesenchymal-stem-cell-loaded-cardiac-patch-promotes-epicardial-activation-and-repair-of-the-infarcted-myocardium
#10
Qiang-Li Wang, Hai-Jie Wang, Zhi-Hua Li, Yong-Li Wang, Xue-Ping Wu, Yu-Zhen Tan
Cardiac patch is considered a promising strategy for enhancing stem cell therapy of myocardial infarction (MI). However, the underlying mechanisms for cardiac patch repairing infarcted myocardium remain unclear. In this study, we investigated the mechanisms of PCL/gelatin patch loaded with MSCs on activating endogenous cardiac repair. PCL/gelatin patch was fabricated by electrospun. The patch enhanced the survival of the seeded MSCs and their HIF-1α, Tβ4, VEGF and SDF-1 expression and decreased CXCL14 expression in hypoxic and serum-deprived conditions...
February 28, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/28209945/effects-of-static-cold-storage-and-hypothermic-machine-perfusion-on-oxidative-stress-factors-adhesion-molecules-and-zinc-finger-transcription-factor-proteins-before-and-after-liver-transplantation
#11
De-Fang Zhao, Qin Dong, Tong Zhang
BACKGROUND This study aimed to investigate the effects of static cold storage (SCS) and hypothermic machine perfusion (HMP) on the oxidative stress factors (OSF), adhesion molecules (AM), and zinc finger transcription factor (Snail) before and after liver transplantation. MATERIAL AND METHODS Experimental dogs were randomly divided into donor (group A), SCS (group B), and HMP (group C) (n=30) groups. Livers retrieved from group A were transplanted into group B after SCS, and the livers sampled from group B were transplanted into group C after HMP...
February 17, 2017: Annals of Transplantation: Quarterly of the Polish Transplantation Society
https://www.readbyqxmd.com/read/28207301/mucosal-chemokines
#12
Marcela Hernández-Ruiz, Albert Zlotnik
Several chemokines have important functions in mucosal immunity. While there are many chemokines, 4 of them (CCL25, CCL28, CXCL14, and CXCL17) are especially important in mucosal immunity because they are homeostatically expressed in mucosal tissues. Of these, only CCL25 and CCL28 have been widely recognized as mucosal chemokines. In this study, we review the physiology of these chemokines with specific emphasis on their function in mucosal immunity. CCL25 recruits certain important subsets of T cells that express CCR9 to the small intestine...
February 2017: Journal of Interferon & Cytokine Research
https://www.readbyqxmd.com/read/28132869/bone-marrow-derived-mesenchymal-stromal-cells-from-patients-with-sickle-cell-disease-display-intact-functionality
#13
Elizabeth O Stenger, Raghavan Chinnadurai, Shala Yuan, Marco Garcia, Dalia Arafat, Greg Gibson, Lakshmanan Krishnamurti, Jacques Galipeau
Hematopoietic cell transplantation (HCT) is the only cure for sickle cell disease (SCD), but engraftment remains challenging in patients lacking matched donors. Infusion of mesenchymal stromal cells (MSCs) at the time of HCT may promote hematopoiesis and ameliorate graft-versus-host disease. Experimental murine models suggest MSC major histocompatibility complex compatibility with recipient impacts their in vivo function, suggesting autologous MSCs could be superior to third-party MSCs for promoting HCT engraftment...
May 2017: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/28100513/loss-of-ranbp2-in-motoneurons-causes-disruption-of-nucleocytoplasmic-and-chemokine-signaling-proteostasis-of-hnrnph3-and-mmp28-and-development-of-amyotrophic-lateral-sclerosis-like-syndromes
#14
Kyoung-In Cho, Dosuk Yoon, Sunny Qiu, Zachary Danziger, Warren M Grill, William C Wetsel, Paulo A Ferreira
The pathogenic drivers of sporadic and familial motor neuron disease (MND), such amyotrophic lateral sclerosis (ALS), are unknown. MND impairs the Ran GTPase cycle, which controls nucleocytoplasmic transport, ribostasis and proteostasis; however, cause-effect mechanisms of Ran GTPase modulators in motoneuron pathobiology have remained elusive. The cytosolic and peripheral nucleoporin Ranbp2 is a crucial regulator of the Ran GTPase cycle and of the proteostasis of neurological disease-prone substrates, but the roles of Ranbp2 in motoneuron biology and disease remain unknown...
May 1, 2017: Disease Models & Mechanisms
https://www.readbyqxmd.com/read/28095300/knockdown-of-cxcl14-disrupts-neurovascular-patterning-during-ocular-development
#15
Ana F Ojeda, Ravi P Munjaal, Peter Y Lwigale
The C-X-C motif ligand 14 (CXCL14) is a recently discovered chemokine that is highly conserved in vertebrates and expressed in various embryonic and adult tissues. CXCL14 signaling has been implicated to function as an antiangiogenic and anticancer agent in adults. However, its function during development is unknown. We previously identified novel expression of CXCL14 mRNA in various ocular tissues during development. Here, we show that CXCL14 protein is expressed in the anterior eye at a critical time during neurovascular development and in the retina during neurogenesis...
March 1, 2017: Developmental Biology
https://www.readbyqxmd.com/read/28087599/long-noncoding-rna-linc00092-acts-in-cancer-associated-fibroblasts-to-drive-glycolysis-and-progression-of-ovarian-cancer
#16
Linjie Zhao, Gaili Ji, Xiaobing Le, Chenlu Wang, Lian Xu, Min Feng, Yaguang Zhang, Huiliang Yang, Yu Xuan, Yanfei Yang, Lingzi Lei, Qilian Yang, Wayne Bond Lau, Bonnie Lau, Yi Chen, Xiangbing Deng, Shaohua Yao, Tao Yi, Xia Zhao, Yuquan Wei, Shengtao Zhou
The majority of patients with epithelial ovarian cancer are diagnosed at a late stage when the peritoneal metastases exist; however, there is little knowledge of the metastatic process in this disease setting. In this study, we report the identification of the long noncoding RNA LINC00092 as a nodal driver of metastatic progression mediated by cancer-associated fibroblasts (CAF). Prometastatic properties of CAFs in vitro and in vivo were found to associate with elevated expression of the chemokine CXCL14. In clinical specimens, elevated levels of CXCL14 in CAFs also correlated with poor prognosis...
January 13, 2017: Cancer Research
https://www.readbyqxmd.com/read/27861181/genetic-risk-for-inflammatory-bowel-disease-is-a-determinant-of-crohn-s-disease-development-in-chronic-granulomatous-disease
#17
Chengrui Huang, Suk See De Ravin, Adam R Paul, Theo Heller, Nancy Ho, Lisa Wu Datta, Christa S Zerbe, Beatriz E Marciano, Douglas B Kuhns, Howard A Kader, Steven M Holland, Harry L Malech, Steven R Brant
BACKGROUND: Approximately, one-third to one-half of children with chronic granulomatous disease (CGD) develop gastrointestinal inflammation characteristic of idiopathic inflammatory bowel disease (IBD), usually Crohn's disease. We hypothesized that the overall IBD genetic risk, determined by IBD genetic risk score (GRS), might in part determine IBD development in CGD. METHODS: We reviewed medical records to establish IBD diagnoses in CGD subjects seen at NIAID. IBD risk single nucleotide polymorphism genotypes were determined using the Immunochip, and GRS were estimated by Mangrove...
December 2016: Inflammatory Bowel Diseases
https://www.readbyqxmd.com/read/27824647/genetic-risk-for-inflammatory-bowel-disease-is-a-determinant-of-crohn-s-disease-development-in-chronic-granulomatous-disease
#18
Chengrui Huang, Suk S De Ravin, Adam R Paul, Theo Heller, Nancy Ho, Lisa Wu Datta, Christa S Zerbe, Beatriz E Marciano, Douglas B Kuhns, Howard A Kader, Steven M Holland, Harry L Malech, Steven R Brant
BACKGROUND: Approximately, one-third to one-half of children with chronic granulomatous disease (CGD) develop gastrointestinal inflammation characteristic of idiopathic inflammatory bowel disease (IBD), usually Crohn's disease. We hypothesized that the overall IBD genetic risk, determined by IBD genetic risk score (GRS), might in part determine IBD development in CGD. METHODS: We reviewed medical records to establish IBD diagnoses in CGD subjects seen at NIAID. IBD risk single nucleotide polymorphism genotypes were determined using the Immunochip, and GRS were estimated by Mangrove...
December 2016: Inflammatory Bowel Diseases
https://www.readbyqxmd.com/read/27787597/stromal-factors-involved-in-human-prostate-cancer-development-progression-and-castration-resistance
#19
Noemi Eiro, Jesus Fernandez-Gomez, Raquel Sacristán, Belen Fernandez-Garcia, Beatriz Lobo, Jorge Gonzalez-Suarez, Alejandro Quintas, Safwan Escaf, Francisco J Vizoso
PURPOSE: To detect new predictive markers from the prostate cancer tissue, to study the expression by cultured cancer-associated fibroblasts (CAFs) of stromal factors implicated in prostate carcinogenesis, and to compare their expressions in localized, metastatic, castration-sensitive (CSCP), castration-resistant prostate tumors (CRCP) as well as in fibroblasts from benign prostatic hyperplasia (BPH). MATERIALS AND METHODS: The genomic expression of 20 stroma-derived factors, including the androgen receptor (AR), growth factors (FGF2, FGF7, FGF10, HGF, TGFβ, PDGFB), protein implicated in invasion (MMP-2, MMP-9 and MMP-11), inflammation (IL-6, IL-17, STAT-3 and NFκB), stroma/epithelium interaction (CDH11, FAP, CXCL12 and CXCL14) and chaperones (HPA1A and HSF1), was evaluated in cultured fibroblasts both from BHP and prostate carcinomas (PCa)...
February 2017: Journal of Cancer Research and Clinical Oncology
https://www.readbyqxmd.com/read/27769059/microarray-analysis-on-the-lncrna-expression-profile-in-male-hepatocelluar-carcinoma-patients-with-chronic-hepatitis-b-virus-infection
#20
Jianjun Niu, Yong Lin, Pingguo Liu, Yiwen Yu, Chenghao Su, Xiaomin Wang
Long non-coding RNAs are involved with development and progression of cancer, and the advance of microarray technology allows the researchers to investigate the complete expression profile of lncRNA in various kinds of sample. We enrolled 5 male primary HCC cases with chronic HBV infection and the HCC and normal tissues have been obtained during the resection surgery. After total RNA extraction, the lncRNA microarray analysis was conducted to determine the lncRNA and mRNA expression signals. 612 lncRNAs and 1,064 mRNAs were significantly up-regulated in HCC tissue while 656 lncRNAs and 1,532 mRNAs were down-regulated in HCC tissues...
November 15, 2016: Oncotarget
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