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https://www.readbyqxmd.com/read/28222329/inflammatory-chemokines-and-their-receptors-in-human-visceral-leishmaniasis-gene-expression-profile-in-peripheral-blood-splenic-cellular-sources-and-their-impact-on-trafficking-of-inflammatory-cells
#1
Neetu Singh, Shyam Sundar
Chemokines play an important role in determining cellular composition at inflammatory sites, and as such, influence disease outcome. In this study, we investigated the expression profile and splenic cellular source of various inflammatory chemokines and their receptors in human visceral leishmaniasis (VL). The expression of chemokines or their receptors was measured at the gene and protein level by employing real time qPCR and a cytometric bead array assay, respectively. In addition, the cellular source of chemokines and their receptors in the spleen was identified employing gene expression analyses in sequentially selected cell subsets...
February 18, 2017: Molecular Immunology
https://www.readbyqxmd.com/read/28215986/the-%C3%AE-4galt1-affects-the-fibroblast-like-synoviocytes-invasion-in-rheumatoid-arthritis-by-modifying-n-linked-glycosylation-of-cxcr3
#2
Chi Sun, Xinhui Zhu, Tao Tao, Dongmei Zhang, Yi Wang, Hua Xu, Yunli Ren, Youhua Wang
OBJECTIVE: The level of β-1,4-galactosyltransferase 1 (β4GalT1) is up-regulated in collagen-induced arthritis (CIA) mice. It is reported that CXC chemokine receptor 3 (CXCR3) can enhance the invasiveness of fibroblast-like synoviocytes (FLS) in rheumatoid arthritis (RA). This study aims to investigate the specific mechanism of β4GalT1 and relationship between β4GalT1 and CXCR3 in RA. METHODS: The model of CIA mice was established to explore the role of β4GalT1...
February 10, 2017: European Journal of Cell Biology
https://www.readbyqxmd.com/read/28209986/nf-%C3%AE%C2%BAb-signaling-regulates-cell-autonomous-regulation-of-cxcl10-in-breast-cancer-4t1-cells
#3
Won Jong Jin, Bongjun Kim, Darong Kim, Hea-Young Park Choo, Hong-Hee Kim, Hyunil Ha, Zang Hee Lee
The chemokine CXCL10 and its receptor CXCR3 play a role in breast cancer metastasis to bone and osteoclast activation. However, the mechanism of CXCL10/CXCR3-induced intracellular signaling has not been fully investigated. To evaluate CXCL10-induced cellular events in the mouse breast cancer cell line 4T1, we developed a new synthetic CXCR3 antagonist JN-2. In this study, we observed that secretion of CXCL10 in the supernatant of 4T1 cells was gradually increased during cell growth. JN-2 inhibited basal and CXCL10-induced CXCL10 expression and cell motility in 4T1 cells...
February 17, 2017: Experimental & Molecular Medicine
https://www.readbyqxmd.com/read/28206670/altered-expression-of-cxcr3-and-ccr6-and-their-ligands-in-htlv-1-carriers-and-ham-tsp-patients
#4
Houshang Rafatpanah, Mehdi Felegari, Mahmoud Reza Azarpazhooh, Rosita Vakili, Taraneh Rajaei, Ian Hampson, Golmahossein Hassanshahi, Narges Valizadeh, Sina Gerayli, Hamid Farjifard, Shadi Zamanian, Farzad MollaHosseini, Seyed Abdolrahim Rezaee
Recruitment of leukocytes by chemokines and chemokine receptors to CNS plays a crucial role in the induction of inflammatory response in HTLV-1-associated myelopathy/tropical spastic paraparesis (HAM/TSP). In the present study, chemokine and chemokine receptors involved in trafficking of lymphocytes to the CNS were measured in HAM/TSP patients, HTLV-1 asymptomatic carriers (ACs), and healthy controls. The PVL, CCR6 and CXCR3 mRNA expression, and CXCL9 and CXCL10 protein levels were measured in all subjects...
February 16, 2017: Journal of Medical Virology
https://www.readbyqxmd.com/read/28190771/obesity-induced-metabolic-stress-leads-to-biased-effector-memory-cd4-t-cell-differentiation-via-pi3k-p110%C3%AE-akt-mediated-signals
#5
Claudio Mauro, Joanne Smith, Danilo Cucchi, David Coe, Hongmei Fu, Fabrizia Bonacina, Andrea Baragetti, Gaia Cermenati, Donatella Caruso, Nico Mitro, Alberico L Catapano, Enrico Ammirati, Maria P Longhi, Klaus Okkenhaug, Giuseppe D Norata, Federica M Marelli-Berg
Low-grade systemic inflammation associated to obesity leads to cardiovascular complications, caused partly by infiltration of adipose and vascular tissue by effector T cells. The signals leading to T cell differentiation and tissue infiltration during obesity are poorly understood. We tested whether saturated fatty acid-induced metabolic stress affects differentiation and trafficking patterns of CD4(+) T cells. Memory CD4(+) T cells primed in high-fat diet-fed donors preferentially migrated to non-lymphoid, inflammatory sites, independent of the metabolic status of the hosts...
January 30, 2017: Cell Metabolism
https://www.readbyqxmd.com/read/28176332/low-dose-interleukin-2-promotes-stat5-phosphorylation-treg-survival-and-ctla-4-dependent-function-in-autoimmune-liver-diseases
#6
Hannah C Jeffery, Louisa E Jeffery, Philipp Lutz, Margaret Corrigan, Gwilym J Webb, Gideon M Hirschfield, David H Adams, Ye Htun Oo
CD4(+) CD25(high) CD127(low) FOXP3(+) regulatory T cells (Treg) are essential for the maintenance of peripheral tolerance. Impaired Treg function and an imbalance between effector and regulatory T cells contribute to the pathogenesis of autoimmune diseases. We recently reported that the hepatic microenvironment is deficient in IL-2, a cytokine essential for Treg survival and function. Consequently, few liver-infiltrating Treg demonstrate STAT5 phosphorylation. To establish the potential of IL-2 to enhance Treg therapy, we investigated the effects of very low dose Proleukin (VLDP) on the phosphorylation of STAT5 and the subsequent survival and function of Treg and T effector cells from the blood and livers of patients with autoimmune liver diseases...
February 8, 2017: Clinical and Experimental Immunology
https://www.readbyqxmd.com/read/28157391/microbes-associate-with-host-innate-immune-response-in-idiopathic-pulmonary-fibrosis
#7
Yong Huang, Shwu-Fan Ma, Milena S Espindola, Rekha Vij, Justin M Oldham, Gary B Huffnagle, John R Erb-Downward, Kevin R Flaherty, Beth B Moore, Eric S White, Tong Zhou, Jianrong Li, Yves A Lussier, MeiLan K Han, Naftali Kaminski, Joe G N Garcia, Cory M Hogaboam, Fernando J Martinez, Imre Noth
RATIONALE: Differences in the lung microbial community influence idiopathic pulmonary fibrosis (IPF) progression. Whether the lung microbiome influences IPF host defense remains unknown. OBJECTIVES: To explore the host immune response and microbial interaction in IPF, as they relate to progression-free survival (PFS), fibroblast function, and leukocyte phenotypes. METHODS: Paired microarray gene expression data from peripheral blood mononuclear cells (PBMCs) and 16s rRNA sequencing data from bronchoalveolar lavage (BAL) obtained as part of the COMET-IPF study were used to conduct association pathway analyses...
February 3, 2017: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/28148784/different-expression-of-interferon-stimulated-genes-in-response-to-hiv-1-infection-in-dendritic-cells-according-to-their-maturation-state
#8
Esther Calonge, Mercedes Bermejo, Francisco Diez-Fuertes, Isabelle Mangeot, Nuria Gonzalez, Mayte Coiras, Laura Jimenez Tormo, Javier García-Perez, Nathalie Dereuddre-Bosquet, Roger Le Grand, José Alcamí
: Dendritic cells (DCs) are professional antigen presenting cells whose functions are dependent on their degree of differentiation. In their immature state, DCs, capture pathogens and migrate to the lymph nodes. During this process DCs become resident mature cells specialized in antigen presentation. DCs are characterized by a highly limiting environment to HIV-1 replication due to the expression of restriction factors as SAMHD1 and APOBEC3G. However, uninfected DCs capture and transfer viral particles to CD4 lymphocytes through a trans-enhancement mechanism in which chemokines are involved...
February 1, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28138558/circulating-cxcr5-cxcr3-pd-1-lo-tfh-like-cells-in-hiv-1-controllers-with-neutralizing-antibody-breadth
#9
Enrique Martin-Gayo, Jacqueline Cronin, Taylor Hickman, Zhengyu Ouyang, Madelene Lindqvist, Kellie E Kolb, Julian Schulze Zur Wiesch, Rafael Cubas, Filippos Porichis, Alex K Shalek, Jan van Lunzen, Elias K Haddad, Bruce D Walker, Daniel E Kaufmann, Mathias Lichterfeld, Xu G Yu
HIV-1-specific broadly neutralizing antibodies (bnAbs) typically develop in individuals with continuous high-level viral replication and increased immune activation, conditions that cannot be reproduced during prophylactic immunization. Understanding mechanisms supporting bnAb development in the absence of high-level viremia may be important for designing bnAb-inducing immunogens. Here, we show that the breadth of neutralizing antibody responses in HIV-1 controllers was associated with a relative enrichment of circulating CXCR5(+)CXCR3(+)PD-1(lo) CD4(+) T cells...
January 26, 2017: JCI Insight
https://www.readbyqxmd.com/read/28137869/akt-signaling-is-critical-for-memory-cd8-t-cell-development-and-tumor-immune-surveillance
#10
Anne Rogel, Jane E Willoughby, Sarah L Buchan, Henry J Leonard, Stephen M Thirdborough, Aymen Al-Shamkhani
Memory CD8(+) T cells confer long-term immunity against tumors, and anticancer vaccines therefore should maximize their generation. Multiple memory CD8(+) T-cell subsets with distinct functional and homing characteristics exist, but the signaling pathways that regulate their development are ill defined. Here we examined the role of the serine/threonine kinase Akt in the generation of protective immunity by CD8(+) T cells. Akt is known to be activated by the T-cell antigen receptor and the cytokine IL-2, but its role in T-cell immunity in vivo has not been explored...
February 14, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28137280/high-dimensional-assessment-of-b-cell-responses-to-quadrivalent-meningococcal-conjugate-and-plain-polysaccharide-vaccine
#11
Daniel O'Connor, Elizabeth A Clutterbuck, Amber J Thompson, Matthew D Snape, Maheshi N Ramasamy, Dominic F Kelly, Andrew J Pollard
BACKGROUND: Neisseria meningitidis is a globally important cause of meningitis and septicaemia. Twelve capsular groups of meningococci are known, and quadrivalent vaccines against four of these (A, C, W and Y) are available as plain-polysaccharide and protein-polysaccharide conjugate vaccines. Here we apply contemporary methods to describe B-cell responses to meningococcal polysaccharide and conjugate vaccines. METHODS: Twenty adults were randomly assigned to receive either a meningococcal plain-polysaccharide or conjugate vaccine; one month later all received the conjugate vaccine...
January 30, 2017: Genome Medicine
https://www.readbyqxmd.com/read/28129932/chemokine-receptor-cxcr3-deficiency-exacerbates-murine-autoimmune-cholangitis-by-promoting-pathogenic-cd8-t-cell-activation
#12
Hong-Di Ma, Wen-Tao Ma, Qing-Zhi Liu, Zhi-Bin Zhao, Mu-Zi-Ying Liu, Koichi Tsuneyama, Jin-Ming Gao, William M Ridgway, Aftab A Ansari, M Eric Gershwin, Yun-Yun Fei, Zhe-Xiong Lian
CXC Chemokine Receptor 3 (CXCR3) is functionally pleiotropic and not only plays an important role in chemotaxis, but also participates in T cell differentiation and may play a critical role in inducing and maintaining immune tolerance. These observations are particularly critical for autoimmune cholangitis in which CXCR3 positive T cells are found around the portal areas of both humans and mouse models of primary biliary cholangitis (PBC). Herein, we investigated the role of CXCR3 in the pathogenesis of autoimmune cholangitis...
January 24, 2017: Journal of Autoimmunity
https://www.readbyqxmd.com/read/28126463/cxcr3-depleting-antibodies-prevent-and-reverse-vitiligo-in-mice-%C3%A2
#13
Jillian M Richmond, Elizabeth Masterjohn, Ruiyin Chu, Jennifer Tedstone, Michele E Youd, John E Harris
No abstract text is available yet for this article.
January 23, 2017: Journal of Investigative Dermatology
https://www.readbyqxmd.com/read/28116674/enhanced-viral-clearance-and-reduced-leukocyte-infiltration-in-experimental-herpes-encephalitis-after-intranasal-infection-of-cxcr3-deficient-mice
#14
J Zimmermann, W Hafezi, A Dockhorn, Eva U Lorentzen, M Krauthausen, Daniel R Getts, M Müller, Joachim E Kühn, Nicholas J C King
Herpes simplex virus type 1 (HSV-1) encephalitis (HSE) is the most common fatal sporadic encephalitis in developed countries. There is evidence from HSE animal models that not only direct virus-mediated damage caused but also the host's immune response contributes to the high mortality of the disease. Chemokines modulate and orchestrate this immune response. Previous experimental studies in HSE models identified the chemokine receptor CXCR3 and its ligands as molecules with a high impact on the course of HSE in mouse models...
January 23, 2017: Journal of Neurovirology
https://www.readbyqxmd.com/read/28111710/ip-10-cxcr3-axis-promotes-the-proliferation-of-vascular-smooth-muscle-cells-through-erk1-2-creb-signaling-pathway
#15
Hui-Jin Wang, Yu Zhou, Rui-Ming Liu, Yuan-Sen Qin, Ying-Huan Cen, Ling-Yu Hu, Shen-Ming Wang, Zuo-Jun Hu
Excessive proliferation of vascular smooth muscle cells is one of the main pathological processes leading to atherosclerosis and intimal hyperplasia after vascular interventional therapy. Our previous study has shown that interferon-γ inducible protein-10 contributes to the proliferation of vascular smooth muscle cell. However, the underlying mechanisms remain unclear. Extracellular signal-regulated kinase 1/2, serine/threonine kinase Akt, and cAMP response element binding protein are signaling pathways, which are considered to play important roles in the processes of vascular smooth muscle cell proliferation...
January 23, 2017: Cell Biochemistry and Biophysics
https://www.readbyqxmd.com/read/28108560/cxcr3-cxcl10-axis-regulates-neutrophil-nk-cell-cross-talk-determining-the-severity-of-experimental-osteoarthritis
#16
Giorgia Benigni, Petya Dimitrova, Fabrizio Antonangeli, Emilio Sanseviero, Viktoriya Milanova, Arjen Blom, Peter van Lent, Stefania Morrone, Angela Santoni, Giovanni Bernardini
Several immune cell populations are involved in cartilage damage, bone erosion, and resorption processes during osteoarthritis. The purpose of this study was to investigate the role of NK cells in the pathogenesis of experimental osteoarthritis and whether and how neutrophils can regulate their synovial localization in the disease. Experimental osteoarthritis was elicited by intra-articular injection of collagenase in wild type and Cxcr3(-/-) 8-wk old mice. To follow osteoarthritis progression, cartilage damage, synovial thickening, and osteophyte formation were measured histologically...
January 20, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28100749/promoted-interaction-of-c-ebp%C3%AE-with-demethylated-cxcr3-gene-promoter-contributes-to-neuropathic-pain-in-mice
#17
Bao-Chun Jiang, Li-Na He, Xiao-Bo Wu, Hui Shi, Wen-Wen Zhang, Zhi-Jun Zhang, De-Li Cao, Chun-Hua Li, Jun Gu, Yong-Jing Gao
: DNA methylation has been implicated in the pathogenesis of chronic pain. However, the specific genes regulated by DNA methylation under neuropathic pain condition remain largely unknown. Here we investigated how chemokine receptor CXCR3 is regulated by DNA methylation and how it contributes to neuropathic pain induced by spinal nerve ligation (SNL) in mice. SNL increased Cxcr3 mRNA and protein expression in the neurons of the spinal cord. Meanwhile, the CpG (5'-cytosine-phosphate-guanine-3') island in the Cxcr3 gene promoter region was demethylated, and the expression of DNA methyltransferase 3b (DNMT3b) was decreased...
January 18, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28078185/cxcl11-expression-by-keratinocytes-occurs-transiently-between-reaching-confluence-and-cellular-compaction
#18
Arthur C Huen, Archana Marathi, Peter K Nam, Alan Wells
Objective: To investigate whether differentiation or cellular confluence is responsible for CXCL11 expression patterns in re-epithelialization. Approach:In vitro model systems of re-epithelialization using the HaCaT keratinocyte cell line were utilized in monitoring expression of differentiation markers, including desmoplakin and various cytokeratins while evaluating for an association with chemokine CXCL11 expression. Results: CXCL11 expression was elevated in sparse culture with peak expression near the time of confluence...
December 1, 2016: Advances in Wound Care
https://www.readbyqxmd.com/read/28057639/clinical-and-immunologic-impact-of-ccr5-blockade-in-graft-versus-host-disease-prophylaxis
#19
Ryan H Moy, Austin P Huffman, Lee P Richman, Lisa Crisalli, Ximi K Wang, James A Hoxie, Rosemarie Mick, Stephen G Emerson, Yi Zhang, Robert H Vonderheide, David L Porter, Ran Reshef
Graft-versus-host disease (GVHD) is a major cause of morbidity and mortality after allogeneic hematopoietic stem cell transplantation (allo-HSCT). Lymphocyte trafficking via chemokine receptors such as CCR5 plays a critical role in alloreactive responses, and previous data suggest that CCR5 blockade with maraviroc results in a low incidence of visceral GVHD. However, the full scope of clinical and immunologic effects of CCR5 blockade in HSCT has not been described. We compared a cohort of patients enrolled on a trial of reduced-intensity allo-HSCT with standard GVHD prophylaxis plus maraviroc to a contemporary control cohort receiving standard GVHD prophylaxis alone...
January 5, 2017: Blood
https://www.readbyqxmd.com/read/28053515/gender-differences-in-the-t-cell-profiles-of-the-airways-in-copd-patients-associated-with-clinical-phenotypes
#20
Helena Forsslund, Mingxing Yang, Mikael Mikko, Reza Karimi, Sven Nyrén, Benita Engvall, Johan Grunewald, Heta Merikallio, Riitta Kaarteenaho, Jan Wahlström, Åsa M Wheelock, C Magnus Sköld
T lymphocytes are believed to play an important role in the pathogenesis of chronic obstructive pulmonary disease (COPD). How T cells are recruited to the lungs and contribute to the inflammatory process is largely unknown. COPD is a heterogeneous disease, and discriminating disease phenotypes based on distinct molecular and cellular pathways may provide new approaches for individualized diagnosis and therapies. Bronchoalveolar lavage (BAL) and blood samples were obtained from 40 never-smokers, 40 smokers with normal lung function, and 38 COPD patients...
2017: International Journal of Chronic Obstructive Pulmonary Disease
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