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https://www.readbyqxmd.com/read/28337574/the-rs504393-influences-the-level-of-nociceptive-factors-and-enhances-opioid-analgesic-potency-in-neuropathic-rats
#1
Klaudia Kwiatkowski, Anna Piotrowska, Ewelina Rojewska, Wioletta Makuch, Joanna Mika
Increasing evidence has indicated that activated glial cells releasing nociceptive factors, such as interleukins and chemokines, are of key importance for neuropathic pain. Significant changes in the production of nociceptive factors are associated with the low effectiveness of opioids in neuropathic pain. Recently, it has been suggested that CCL2/CCR2 signaling is important for nociception. Here, we studied the time course changes in the mRNA/protein level of CD40/Iba-1, CCL2 and CCR2 in the spinal cord/dorsal root ganglia (DRG) in rats following chronic constriction injury (CCI) of the sciatic nerve...
March 23, 2017: Journal of Neuroimmune Pharmacology: the Official Journal of the Society on NeuroImmune Pharmacology
https://www.readbyqxmd.com/read/28332276/dual-ccr2-ccr5-antagonist-treatment-attenuates-adipose-inflammation-but-not-microvascular-complications-in-ob-ob-mice
#2
Phillipe D O'Brien, Lucy M Hinder, Sebastian D Parlee, John M Hayes, Carey Backus, Hongyu Zhang, Lijun Ma, Stacey A Sakowski, Frank C Brosius, Eva L Feldman
Diabetic peripheral neuropathy (DPN) and diabetic kidney disease (DKD) are common diabetic complications with limited treatment options. Experimental studies show that targeting inflammation using chemokine receptor (CCR) antagonists ameliorates DKD, presumably by reducing macrophage accumulation or activation. As inflammation is implicated in DPN development, we assessed whether CCR2 and CCR5 antagonism could also benefit DPN. Five-week-old ob/ob mice were fed a diet containing MK-0812, a dual CCR2-CCR5 receptor antagonist, for 8 weeks and DPN, DKD, and metabolic phenotyping were then performed to determine the effect of CCR inhibition...
March 23, 2017: Diabetes, Obesity & Metabolism
https://www.readbyqxmd.com/read/28329706/exposure-to-bacterial-cpg-dna-protects-from-airway-allergic-inflammation-by-expanding-regulatory-lung-interstitial-macrophages
#3
Catherine Sabatel, Coraline Radermecker, Laurence Fievez, Genevieve Paulissen, Svetoslav Chakarov, Claudia Fernandes, Sabine Olivier, Marie Toussaint, Dimitri Pirottin, Xue Xiao, Pascale Quatresooz, Jean-Claude Sirard, Didier Cataldo, Laurent Gillet, Hicham Bouabe, Christophe J Desmet, Florent Ginhoux, Thomas Marichal, Fabrice Bureau
Living in a microbe-rich environment reduces the risk of developing asthma. Exposure of humans or mice to unmethylated CpG DNA (CpG) from bacteria reproduces these protective effects, suggesting a major contribution of CpG to microbe-induced asthma resistance. However, how CpG confers protection remains elusive. We found that exposure to CpG expanded regulatory lung interstitial macrophages (IMs) from monocytes infiltrating the lung or mobilized from the spleen. Trafficking of IM precursors to the lung was independent of CCR2, a chemokine receptor required for monocyte mobilization from the bone marrow...
March 21, 2017: Immunity
https://www.readbyqxmd.com/read/28329114/pcsk9-monoclonal-antibodies-reverse-the-pro-inflammatory-profile-of-monocytes-in-familial-hypercholesterolaemia
#4
Sophie J Bernelot Moens, Annette E Neele, Jeffrey Kroon, Fleur M van der Valk, Jan Van den Bossche, Marten A Hoeksema, Renate M Hoogeveen, Johan G Schnitzler, Marie T Baccara-Dinet, Garen Manvelian, Menno P J de Winther, Erik S G Stroes
Aims: Migration of monocytes into the arterial wall contributes to arterial inflammation and atherosclerosis progression. Since elevated low-density lipoprotein cholesterol (LDL-C) levels have been associated with activation of plasma monocytes, intensive LDL-C lowering may reverse these pro-inflammatory changes. Using proprotein convertase subtilisin/kexin type 9 (PCSK9) monoclonal antibodies (mAbs) which selectively reduce LDL-C, we studied the impact of LDL-C lowering on monocyte phenotype and function in patients with familial hypercholesterolaemia (FH) not using statins due to statin-associated muscle symptoms...
February 18, 2017: European Heart Journal
https://www.readbyqxmd.com/read/28329093/cholesterol-ccr2-and-monocyte-phenotypes-in-atherosclerosis
#5
Matthias Nahrendorf, Filip K Swirski
No abstract text is available yet for this article.
March 2, 2017: European Heart Journal
https://www.readbyqxmd.com/read/28324102/duodenal-mucosa-of-patients-with-type-1-diabetes-shows-distinctive-inflammatory-profile-and-microbiota
#6
Silvia Pellegrini, Valeria Sordi, Andrea Mario Bolla, Diego Saita, Roberto Ferrarese, Filippo Canducci, Massimo Clementi, Francesca Invernizzi, Alberto Mariani, Riccardo Bonfanti, Graziano Barera, Pier Alberto Testoni, Claudio Doglioni, Emanuele Bosi, Lorenzo Piemonti
Context: Increasing evidences suggest a correlation between gut and type 1 diabetes (T1D). Objective: The objective of this study is to evaluate the gut inflammatory profile and microbiota in patients with T1D, compared to healthy controls (CTRL) and patients with celiac disease (CD) as gut inflammatory disease controls. Design/Setting/Participants: The inflammatory status and microbiome composition were evaluated in biopsies of the duodenal mucosa of patients with T1D (n=19), CD (n=19) and CTRL (n=16), recruited at San Raffaele Scientific Institute, in Milan, Italy, between 2009 and 2015...
January 19, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28323124/cd44-is-a-key-player-in-non-alcoholic-steatohepatitis
#7
Stéphanie Patouraux, Déborah Rousseau, Stéphanie Bonnafous, Cynthia Lebeaupin, Carmelo Luci, Clémence M Canivet, Anne-Sophie Schneck, Adeline Bertola, Marie-Christine Saint-Paul, Antonio Iannelli, Jean Gugenheim, Rodolphe Anty, Albert Tran, Béatrice Bailly-Maitre, Philippe Gual
BACKGROUND: CD44 is expressed on many immune cells that contribute to inflammation. It has been shown, mainly through animal data, that CD44 regulates adipose tissue inflammation in obesity and hepatic leukocyte recruitment in a lithogenic context. However, its role in hepatic inflammation in a mouse model of steatohepatitis and its relevance in humans have not yet been investigated. METHODS: The role of CD44 was evaluated in CD44-/- mice and after injections of an αCD44 antibody in Wild-type mice challenged with a methionine- and choline-deficient diet (MCDD)...
March 16, 2017: Journal of Hepatology
https://www.readbyqxmd.com/read/28320442/analysis-of-monocyte-infiltration-in-mptp-mice-reveals-that-microglial-cx3cr1-protects-against-neurotoxic-over-induction-of-monocyte-attracting-ccl2-by-astrocytes
#8
Vincent R Parillaud, Guillaume Lornet, Yann Monnet, Anne-Laure Privat, Andrei T Haddad, Vanessa Brochard, Amaury Bekaert, Camille Baudesson de Chanville, Etienne C Hirsch, Christophe Combadière, Stéphane Hunot, Christian S Lobsiger
BACKGROUND: Evidence from mice suggests that brain infiltrating immune cells contribute to neurodegeneration, and we previously identified a deleterious lymphocyte infiltration in Parkinson's disease mice. However, this remains controversial for monocytes, due to artifact-prone techniques used to distinguish them from microglia. Our aim was to reassess this open question, by taking advantage of the recent recognition that chemokine receptors CCR2 and CX3CR1 can differentiate between inflammatory monocytes and microglia, enabling to test whether CCR2(+) monocytes infiltrate the brain during dopaminergic (DA) neurodegeneration and whether they contribute to neuronal death...
March 21, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28319586/short-term-exercise-training-alters-leukocyte-chemokine-receptors-in-obese-adults
#9
Julianne C Barry, Svetlana Simtchouk, Cody Durrer, Mary E Jung, Jonathan P Little
Obesity is characterized by chronic low-grade inflammation driven by activation and tissue infiltration of circulating leukocytes. Although exercise has anti-inflammatory effects, the impact of exercise on mediators of leukocyte migration is unclear. PURPOSE: To determine the impact of high intensity interval training (HIIT) versus moderate intensity continuous training (MICT), in the absence of weight/fat loss, on circulating chemokines and leukocyte chemokine receptors. METHODS: Thirty-seven inactive obese adults were randomized to two weeks (10 sessions) of HIIT or MICT with fasting blood samples collected before and after training...
March 18, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28298522/scavenger-receptor-marco-orchestrates-early-defenses-and-contributes-to-fungal-containment-during-cryptococcal-infection
#10
Jintao Xu, Adam Flaczyk, Lori M Neal, Zhenzong Fa, Alison J Eastman, Antoni N Malachowski, Daphne Cheng, Bethany B Moore, Jeffrey L Curtis, John J Osterholzer, Michal A Olszewski
The scavenger receptor macrophage receptor with collagenous structure (MARCO) promotes protective innate immunity against bacterial and parasitic infections; however, its role in host immunity against fungal pathogens, including the major human opportunistic fungal pathogen Cryptococcus neoformans, remains unknown. Using a mouse model of C. neoformans infection, we demonstrated that MARCO deficiency leads to impaired fungal control during the afferent phase of cryptococcal infection. Diminished fungal containment in MARCO(-/-) mice was accompanied by impaired recruitment of Ly6C(high) monocytes and monocyte-derived dendritic cells (moDC) and lower moDC costimulatory maturation...
March 15, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28282403/chemokine-binding-protein-m3-limits-atherosclerosis-in-apolipoprotein-e-mice
#11
Dhanya Ravindran, Anisyah Ridiandries, Laura Z Vanags, Rodney Henriquez, Siân Cartland, Joanne T M Tan, Christina A Bursill
Chemokines are important in macrophage recruitment and the progression of atherosclerosis. The 'M3' chemokine binding protein inactivates key chemokines involved in atherosclerosis (e.g. CCL2, CCL5 and CX3CL1). We aimed to determine the effect of M3 on plaque development and composition. In vitro chemotaxis studies confirmed that M3 protein inhibited the activity of chemokines CCL2, CCL5 and CX3CL1 as primary human monocyte migration as well as CCR2-, CCR5- and CX3CR1-directed migration was attenuated by M3...
2017: PloS One
https://www.readbyqxmd.com/read/28272428/secreted-ectodomain-of-siglec-9-and-mcp-1-synergistically-improve-acute-liver-failure-in-rats-by-altering-macrophage-polarity
#12
Takanori Ito, Masatoshi Ishigami, Yoshihiro Matsushita, Marina Hirata, Kohki Matsubara, Tetsuya Ishikawa, Hideharu Hibi, Minoru Ueda, Yoshiki Hirooka, Hidemi Goto, Akihito Yamamoto
Effective treatments for acute liver failure (ALF) are still lacking. We recently reported that a single intravenous administration of serum-free conditioned medium from stem cells derived from human exfoliated deciduous teeth (SHED-CM) into the D-galactosamine (D-Gal)-induced rat ALF model improves the liver injury. However, the specific factors in SHED-CM that are responsible for resolving ALF remain unclear. Here we found that depleting SHED-CM of two anti-inflammatory M2 macrophage inducers-monocyte chemoattractant protein-1 (MCP-1) and the secreted ectodomain of sialic acid-binding Ig-like lectin-9 (sSiglec-9)-abolished its ability to resolve rat ALF...
March 8, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28267621/targeting-hepatic-macrophages-to-treat-liver-diseases
#13
REVIEW
Frank Tacke
Our view on liver macrophages in the context of health and disease has been reformed by the recognition of a remarkable heterogeneity of phagocytes in the liver. Liver macrophages consist of ontogenically distinct populations termed Kupffer cells and monocyte-derived macrophages. Kupffer cells are self-renewing, resident and principally non-migratory phagocytes, serving as sentinels for liver homeostasis. Liver injury triggers Kupffer cell activation, leading to inflammatory cytokine and chemokine release. This fosters the infiltration of monocytes into liver that give rise to large numbers of inflammatory monocyte-derived macrophages...
March 3, 2017: Journal of Hepatology
https://www.readbyqxmd.com/read/28266270/therapeutic-strategies-of-plant-derived-compounds-for-diabetes-via-regulation-of-monocyte-chemoattractant-protein-1
#14
Jan Szopa, Yu Fu Wang, Anna Kulma, Magdalena Czemplik
BACKGROUND: Monocyte chemoattractant protein-1 (MCP-1) is a member of the CC chemokine family that plays a key role in the inflammatory process. It has been broadly studied in the aspect of its role in obesity and diabetes related diseases. MCP-1 causes the infiltration of macrophages into obese adipose tissue via binding to the CCR2 receptor and is involved in the development of insulin resistance. METHODS: We reviewed the available literature regarding the importance of plant metabolites that regulate MCP-1 activity and are used in the treatment of diabetic disorders...
March 3, 2017: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/28265898/spinal-ccl2-promotes-central-sensitization-long-term-potentiation-and-inflammatory-pain-via-ccr2-further-insights-into-molecular-synaptic-and-cellular-mechanisms
#15
Rou-Gang Xie, Yong-Jing Gao, Chul-Kyu Park, Ning Lu, Ceng Luo, Wen-Ting Wang, Sheng-Xi Wu, Ru-Rong Ji
Mounting evidence supports an important role of chemokines, produced by spinal cord astrocytes, in promoting central sensitization and chronic pain. In particular, CCL2 (C-C motif chemokine ligand 2) has been shown to enhance N-methyl-D-aspartate (NMDA)-induced currents in spinal outer lamina II (IIo) neurons. However, the exact molecular, synaptic, and cellular mechanisms by which CCL2 modulates central sensitization are still unclear. We found that spinal injection of the CCR2 antagonist RS504393 attenuated CCL2- and inflammation-induced hyperalgesia...
March 6, 2017: Neuroscience Bulletin
https://www.readbyqxmd.com/read/28261115/il1r2-ccr2-and-cxcr4-may-form-heteroreceptor-complexes-with-nmdar-and-d2r-relevance-for-schizophrenia
#16
Dasiel O Borroto-Escuela, Alexander O Tarakanov, Karl Bechter, Kjell Fuxe
The mild neuroinflammation hypothesis of schizophrenia was introduced by Bechter in 2001. It has been hypothesized that a hypofunction of glutamatergic signaling via N-methyl-D-aspartate receptors (NMDARs) and hyperactivation of dopamine D2 receptors play a role in schizophrenia. The triplet puzzle theory states that sets of triplet amino acid homologies guide two different receptors toward each other and contributes to the formation of a receptor heteromer. It is, therefore, proposed that putative NMDAR-C-C chemokine receptor type 2 (CCR2), NMDAR-C-X-C chemokine receptor type 4 (CXCR4), and NMDAR- interleukin 1 receptor type II (IL1R2) heteromers can be formed in the neuronal networks in mild neuroinflammation due to demonstration of Gly-Leu-Leu (GLL), Val-Ser-Thr (VST), and/or Ser-Val-Ser (SVS) amino acid homologies between these receptor protomers...
2017: Frontiers in Psychiatry
https://www.readbyqxmd.com/read/28257233/three-unique-interstitial-macrophages-in-the-murine-lung-at-steady-state
#17
Sophie L Gibbings, Stacey M Thomas, Shaikh M Atif, Alexandra L McCubbrey, A Nicole Desch, Thomas Danhorn, Sonia M Leach, Donna L Bratton, Peter M Henson, William J Janssen, Claudia V Jakubzick
RATIONALE: The current paradigm in macrophage biology is that some tissues mainly contain macrophages from embryonic origin such as microglia in the brain, while other tissues contain postnatal-derived macrophages, such as the gut. However, in the lung and in other organs such as the skin, there are both embryonic and postnatal-derived macrophages. OBJECTIVES: In this study, we demonstrate in the steady-state lung that the mononuclear phagocyte system is comprised of three newly identified interstitial macrophages (IMs), alveolar macrophages (AMs), dendritic cells (DCs) and few extravascular monocytes...
March 3, 2017: American Journal of Respiratory Cell and Molecular Biology
https://www.readbyqxmd.com/read/28253935/particulate-air-pollution-mediated-effects-on-insulin-resistance-in-mice-are-independent-of-ccr2
#18
Cuiqing Liu, Xiaohua Xu, Yuntao Bai, Jixin Zhong, Aixia Wang, Lixian Sun, Liya Kong, Zhekang Ying, Qinghua Sun, Sanjay Rajagopalan
BACKGROUND: Chronic exposure to fine ambient particulate matter (PM2.5) induces insulin resistance. CC-chemokine receptor 2 (CCR2) appears to be essential in diet-induced insulin resistance implicating an important role for systemic cellular inflammation in the process. We have previously suggested that CCR2 is important in PM2.5 exposure-mediated inflammation leading to insulin resistance under high fat diet situation. The present study assessed the importance of CCR2 in PM2.5 exposure-induced insulin resistance in the context of normal diet...
March 3, 2017: Particle and Fibre Toxicology
https://www.readbyqxmd.com/read/28246398/a-novel-ccr2-antagonist-inhibits-atherogenesis-in-apoe-deficient-mice-by-achieving-high-receptor-occupancy
#19
Ilze Bot, Natalia V Ortiz Zacarías, Wilhelmus E A de Witte, Henk de Vries, Peter J van Santbrink, Daniël van der Velden, Mara J Kröner, Dirk-Jan van der Berg, Dean Stamos, Elizabeth C M de Lange, Johan Kuiper, Adriaan P IJzerman, Laura H Heitman
CC Chemokine Receptor 2 (CCR2) and its endogenous ligand CCL2 are involved in a number of diseases, including atherosclerosis. Several CCR2 antagonists have been developed as potential therapeutic agents, however their in vivo clinical efficacy was limited. In this report, we aimed to determine whether 15a, an antagonist with a long residence time on the human CCR2, is effective in inhibiting the development of atherosclerosis in a mouse disease model. First, radioligand binding assays were performed to determine affinity and binding kinetics of 15a on murine CCR2...
December 2017: Scientific Reports
https://www.readbyqxmd.com/read/28238121/leukocyte-inos-is-required-for-inflammation-and-pathological-remodeling-in-ischemic-heart-failure
#20
Justin R Kingery, Tariq Hamid, Robert K Lewis, Mohamed Ameen Ismahil, Shyam S Bansal, Gregg Rokosh, Tim M Townes, Suzanne T Ildstad, Steven P Jones, Sumanth D Prabhu
In the failing heart, iNOS is expressed by both macrophages and cardiomyocytes. We hypothesized that inflammatory cell-localized iNOS exacerbates left ventricular (LV) remodeling. Wild-type (WT) C57BL/6 mice underwent total body irradiation and reconstitution with bone marrow from iNOS(-/-) mice (iNOS(-/-)c) or WT mice (WTc). Chimeric mice underwent coronary ligation to induce large infarction and ischemic heart failure (HF), or sham surgery. After 28 days, as compared with WTc sham mice, WTc HF mice exhibited significant (p < 0...
March 2017: Basic Research in Cardiology
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