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monocyte chemoattractive protein 1

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https://www.readbyqxmd.com/read/29341885/deletion-of-the-duffy-antigen-receptor-for-chemokines-darc-promotes-insulin-resistance-and-adipose-tissue-inflammation-during-high-fat-feeding
#1
Tyler W Benson, Daniel S Weintraub, Matthew Crowe, Nicole K H Yiew, Orishebawo Popoola, Ajay Pillai, Joel Joseph, Krystal Archer, Charlotte Greenway, Tapan K Chatterjee, James Mintz, David W Stepp, Brian K Stansfield, Weiqin Chen, Julia Brittain, Vladimir Y Bogdanov, Yan Gao, James G Wilson, Yaoliang Tang, Ha Won Kim, Neal L Weintraub
OBJECTIVE: Inflammation in adipose tissues in obesity promotes insulin resistance and metabolic disease. The Duffy antigen receptor for chemokines (DARC) is a promiscuous non-signaling receptor expressed on erythrocytes and other cell types that modulates tissue inflammation by binding chemokines such as monocyte chemoattractant protein-1 (MCP-1) and by acting as a chemokine reservoir. DARC allelic variants are common in humans, but the role of DARC in modulating obesity-related metabolic disease is unknown...
January 13, 2018: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/29340323/clinical-and-pathological-significance-of-autoantibodies-to-erythropoietin-receptor-in-type-2-diabetic-patients-with-ckd
#2
Akinori Hara, Kengo Furuichi, Akihiko Koshino, Haruka Yasuda, Trang Thi Thu Tran, Yasunori Iwata, Norihiko Sakai, Miho Shimizu, Shuichi Kaneko, Hiroyuki Nakamura, Takashi Wada
Introduction: We examined the impact of autoantibodies on the erythropoietin receptor (EPOR) in type 2 diabetic patients with chronic kidney disease (CKD). Methods: A total of 112 Japanese patients with type 2 diabetes who had CKD were enrolled in this study and followed for a mean of 45 months. Sera from these patients were screened for anti-EPOR antibodies using enzyme-linked immunosorbent assays. Results: Anti-EPOR antibodies were detected in 26 patients (23%)...
January 2018: KI Reports
https://www.readbyqxmd.com/read/29337222/blockade-of-placental-growth-factor-reduces-vaso-occlusive-complications-in-murine-models-of-sickle-cell-disease
#3
Jian-Ming Gu, Shujun Yuan, Derek Sim, Keith Abe, Perry Liu, Martin Rosenbruch, Peter Bringmann, Katalin Kauser
Vaso-occlusive crisis (VOC) is the most common and debilitating complication of sickle cell disease (SCD); recurrent episodes cause organ damage and contribute to early mortality. Plasma placental growth factor (PlGF) levels are elevated in SCD and can further increase under hypoxic conditions in SCD mice. Treatment with a PlGF-neutralizing antibody (anti-PlGF Ab) in SCD mice reduced levels of monocyte chemoattractant protein-3, eotaxin, macrophage colony-stimulating factor, plasminogen activator inhibitor-1 significantly, and macrophage-derived chemokine and macrophage inflammatory protein-3β moderately; this may contribute to inhibition of leukocyte recruitment, activation, and thrombosis...
January 11, 2018: Experimental Hematology
https://www.readbyqxmd.com/read/29336612/relationship-among-adiponectin-insulin-resistance-and-atherosclerosis-in-non-diabetic-hypertensive-patients-and-healthy-adults
#4
Huijuan Kou, Jie Deng, Dengfeng Gao, Anqi Song, Zhenhua Han, Jin Wei, Xin Jin, Rui Ma, Qiangsun Zheng
Adiponectin, which is secreted specifically by adipose tissue, has been shown to have anti-atherogenic and anti-inflammatory effects and to improve insulin resistance (IR). The aim of this study was to determine the correlations among adiponectin, IR and atherosclerosis in non-diabetic hypertensive patients and healthy volunteers. In this case control study, we collected complete demographic data from and measured several laboratory parameters in all enrolled subjects. The homeostasis model of assessment for insulin resistance (HOMA-IR) was calculated as an insulin sensitivity index...
January 16, 2018: Clinical and Experimental Hypertension: CHE
https://www.readbyqxmd.com/read/29335864/ethanol-extract-of-lycopodium-serratum-thunb-attenuates-lipopolysaccharide-induced-c6-glioma-cells-migration-via-matrix-metalloproteinase-9-expression
#5
Ju-Yeon Park, Hyuck Kim, Dong-Woo Lim, Jai-Eun Kim, Won-Hwan Park, Sun-Dong Park
OBJECTIVE: To elucidate how ethanol extract of L. serratum (ELS) could exert anti-migratory effects on glioma with the suppression of nuclear factor kappa B (NF-κB) downstream pathway. METHODS: Cell viability of ELS on C6 glioma was detected by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay. Nitric oxide (NO) assay and 2',7'-dichloroflfluorescin diacetate (DCFH-DA) assay were applied to measure NO production and reactive oxygen species (ROS) generation on lipopolysaccharide (LPS)-induced C6 glioma cells...
January 15, 2018: Chinese Journal of Integrative Medicine
https://www.readbyqxmd.com/read/29332916/mir-135a-promotes-inflammatory-responses-of-vascular-smooth-muscle-cells-from-db-db-mice-via-downregulation-of-foxo1
#6
Xiaochun Lu, Dawei Yin, Bo Zhou, Tieling Li
It has been shown that microRNAs (miRNAs) greatly affect the functions of vascular smooth muscle cells (VSMC), but the effects of mRNAs under diabetic conditions remain unclear.Using a model of diabetic db/db mice, we studied the functions of microRNA-135a (miR-135a) during VSMC dysfunction.Compared to control WT mice, miR-135a expression in VSMC was significantly increased while the level of forkhead box O1 (FOXO1) protein decreased significantly. After transfecting miR-135a mimics into VSMC, the expression of FOXO1 was decreased, while cyclooxygenase-2 (COX-2) and monocyte chemoattractant protein-1 (MCP-1) expression levels were increased, thus promoting the interaction between monocytes and WT VSMC...
January 15, 2018: International Heart Journal
https://www.readbyqxmd.com/read/29332250/the-levels-of-12-cytokines-and-growth-factors-in-tears-hyperthyreosis-vs-euthyreosis
#7
Jelena Juri Mandić, Ana Kozmar, Sanja Kusačić-Kuna, Anamarija Jazbec, Krešimir Mandić, Danijela Mrazovac, Nenad Vukojević
PURPOSE: Simultaneous analyses of the contents and ratios of 12 cytokines and growth factors in single samples of human tears were performed, and the results were compared between a group of healthy subjects and a group of patients with Graves' hyperthyreosis (GH) without thyroid-associated orbitopathy (TAO). METHODS: Determinations and concentration measurements of interleukins (IL-2, IL4, IL-6, IL-8, IL-10, IL-1α, and IL-1β) interferon (IFN-γ), tumor necrosis factor (TNF-α), monocyte chemoattractant protein (MCP-1), vascular endothelial growth factor (VEGF), and epidermal growth factor (EGF) were performed with single tear samples from 21 patients with hyperthyreosis and 22 healthy subjects...
January 14, 2018: Graefe's Archive for Clinical and Experimental Ophthalmology
https://www.readbyqxmd.com/read/29328438/cynandione%C3%A2-a-inhibits-lipopolysaccharide-induced-cell-adhesion-via-suppression-of-the-protein-expression-of-vcam%C3%A2-1-in-human-endothelial-cells
#8
Keun Hyung Park, Jiyoung Kim, Eunjoo H Lee, Tae Hoon Lee
Cynandione A (CA) is one of the most active compounds in the roots of Cynanchum wilfordii, the extracts of which have been used extensively in East Asia to treat various diseases including anti‑ischemic stroke. In the present study, the anti‑adherent activity of CA in lipopolysaccharide (LPS)‑stimulated human umbilical vascular endothelial cells (HUVECs) was investigated. CA markedly reduced the expression of vascular adhesion molecule‑1 (VCAM‑1) by LPS in HUVECs. The results also demonstrated that CA significantly reduced the expression of pro‑inflammatory and chemoattractant cytokines, including interleukin (IL)‑1β, IL‑6, IL‑8, monocyte chemoattractant protein‑1 and tumor necrosis factor‑α, in LPS‑activated human endothelial cells...
January 10, 2018: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/29321388/suppression-of-abdominal-aortic-aneurysm-formation-in-mice-by-teneligliptin-a-dipeptidyl-peptidase-4-inhibitor
#9
Yusuke Takahara, Tomotake Tokunou, Toshihiro Ichiki
AIM: Dipeptidyl peptidase-4 (DPP-4) inhibitors lower blood glucose levels through inhibition of incretin degradation, which stimulates insulin secretion. Recent studies reported that DPP-4 inhibitors suppressed atherogenesis in apolipoprotein E-knockout (ApoEKO) mice. In this study, we investigated whether teneligliptin, a DPP-4 inhibitor, affects the development of abdominal aortic aneurysms (AAA) in ApoEKO mice. METHODS: ApoEKO mice were fed a high-fat diet (HFD) and infused with angiotensin (Ang) II by osmotic mini pumps for 4 weeks to induce AAA with (DPP-4i group) or without (control group) teneligliptin administered orally from 1 week before HFD and Ang II infusion to the end of the experiment...
January 10, 2018: Journal of Atherosclerosis and Thrombosis
https://www.readbyqxmd.com/read/29316343/circulating-monocyte-chemoattractant-protein-1-mcp-1-is-associated-with-cachexia-in-treatment-na%C3%A3-ve-pancreatic-cancer-patients
#10
Erin E Talbert, Heather L Lewis, Matthew R Farren, Mitchell L Ramsey, Jeffery M Chakedis, Priyani Rajasekera, Ericka Haverick, Angela Sarna, Mark Bloomston, Timothy M Pawlik, Teresa A Zimmers, Gregory B Lesinski, Phil A Hart, Mary E Dillhoff, Carl R Schmidt, Denis C Guttridge
BACKGROUND: Cancer-associated wasting, termed cancer cachexia, has a profound effect on the morbidity and mortality of cancer patients but remains difficult to recognize and diagnose. While increases in circulating levels of a number of inflammatory cytokines have been associated with cancer cachexia, these associations were generally made in patients with advanced disease and thus may be associated with disease progression rather than directly with the cachexia syndrome. Thus, we sought to assess potential biomarkers of cancer-induced cachexia in patients with earlier stages of disease...
January 7, 2018: Journal of Cachexia, Sarcopenia and Muscle
https://www.readbyqxmd.com/read/29312554/aging-increases-the-expression-of-lung-cincs-and-mcp-1-in-senile-patients-with-pneumonia
#11
Wei Li, Cheng Ding, Shaojun Yin
Objective: To explore the relationship between aging and the expression of monocyte chemoattractant protein (MCP) and cytokine-induced neutrophil chemoattractant (CINCs) in patients with pneumonia. Results: Bacteria counts in senile group were significantly higher than non-senile group, and while white blood cell and neutrophil counts in senile group were observably lower than non-senile group. The concentration of MCP-1 was significantly higher in senile group compared with the non-senile group, and the expression of CINC-1 and CINC-2α was also higher in senile group...
December 12, 2017: Oncotarget
https://www.readbyqxmd.com/read/29305678/the-role-of-adipose-derived-stem-cells-in-a-self-organizing-3d-model-with-regard-to-human-soft-tissue-healing
#12
Martin Oberringer, Monika Bubel, Martina Jennewein, Silke Guthörl, Tamara Morsch, Sophie Bachmann, Wolfgang Metzger, Tim Pohlemann
The clinical phenomenon of inadequate soft tissue healing still remains an important issue. The occurrence of chronic wounds is correlated to the life span, which is still increasing in western countries. Tissue engineering products containing adipose-derived stem cells are discussed as a promising therapeutic approach. Several studies confirmed the value of these cells for soft tissue healing improvement, suggesting a paracrine as well as a direct effect on vessel repair and angiogenesis. In an attempt to figure out specific effects of adipose-derived stem cells on dermal microvascular endothelial cells with respect to the different phases of soft tissue healing, we designed a 3D in vitro model on the basis of spheroids...
January 5, 2018: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/29305668/iloprost-affects-macrophage-activation-and-ccl2-concentrations-in-a-microdialysis-model-in-rats
#13
Kamel Alkhatib, Tina M Poseno, Alda Diaz Perez, Jeannine M Durdik, Julie A Stenken
PURPOSE: The hypothesis that locally-released iloprost, a synthetic prostacyclin analog, affects macrophage phenotype at a microdialysis implant in the subcutaneous space of rats was tested. Macrophage activation towards alternatively-activated phenotypes using pharmaceutical release is of interest to improve integration of implants and direct the foreign body reaction toward a successful outcome. METHODS: Macrophage cell culture was used to test iloprost macrophage activation in vitro...
January 5, 2018: Pharmaceutical Research
https://www.readbyqxmd.com/read/29302619/protein-mimetic-and-anticancer-properties-of-monocyte-targeting-peptide-amphiphile-micelles
#14
Christopher Poon, Sampreeti Chowdhuri, Cheng-Hsiang Kuo, Yun Fang, Francis J Alenghat, Danielle Hyatt, Kian Kani, Mitchell E Gross, Eun Ji Chung
Monocyte chemoattractant protein-1 (MCP-1) stimulates the migration of monocytes to inflammatory sites, leading to the progression of many diseases. Recently, we described a monocyte-targeting peptide amphiphile micelle (MCP-1 PAM) incorporated with the chemokine receptor CCR2 binding motif of MCP-1, which has a high affinity for monocytes in atherosclerotic plaques. We further report here the biomimetic components of MCP-1 PAMs and the influence of the nanoparticle upon binding to monocytes. We report that MCP-1 PAMs have enhanced secondary structure compared to the MCP-1 peptide...
December 11, 2017: ACS Biomaterials Science & Engineering
https://www.readbyqxmd.com/read/29302217/caffeic-acid-phenethyl-ester-protects-against-photothrombotic-cortical-ischemic-injury-in-mice
#15
Sun Ae Hwang, Chi Dae Kim, Won Suk Lee
In this study, we aimed to investigate the neuroprotective effects of caffeic acid phenethyl ester (CAPE), an active component of propolis purified from honeybee hives, on photothrombotic cortical ischemic injury in mice. Permanent focal ischemia was achieved in the medial frontal and somatosensory cortices of anesthetized male C57BL/6 mice by irradiation of the skull with cold light laser in combination with systemic administration of rose bengal. The animals were treated with CAPE (0.5-5 mg/kg, i.p.) twice 1 and 6 h after ischemic insult...
January 2018: Korean Journal of Physiology & Pharmacology
https://www.readbyqxmd.com/read/29298497/effects-of-gender-specific-differences-inflammatory-response-and-genetic-variation-on-the-associations-among-depressive-symptoms-and-the-risk-of-major-adverse-coronary-events-in-patients-with-acute-coronary-syndrome
#16
Jennifer Sanner, Megan L Grove, Erica Yu, F Gerard Moeller, Stanley G Cron, Eric Boerwinkle, Alanna C Morrison, Lorraine Frazier
Depressive symptoms independently contribute to major adverse coronary events (MACEs), with the biological immune response to depression being a likely mediator of this relationship. To determine whether genetic- and/or gender-specific phenotypic differences contribute to associations among depressive symptoms, inflammatory response, and risk of MACE in patients with acute coronary syndrome (ACS), we conducted a prospective study of 1,117 ACS patients to test a gender-specific model in which depressive symptoms (Beck Depression Inventory-II [BDI-II]) are associated with risk of MACE...
January 1, 2018: Biological Research for Nursing
https://www.readbyqxmd.com/read/29290100/circulating-levels-of-monocyte-chemoattractant-protein-1-as-a-potential-measure-of-biological-age-in-mice-and-frailty-in-humans
#17
Matthew J Yousefzadeh, Marissa J Schafer, Nicole Noren Hooten, Elizabeth J Atkinson, Michele K Evans, Darren J Baker, Ellen K Quarles, Paul D Robbins, Warren C Ladiges, Nathan K LeBrasseur, Laura J Niedernhofer
A serum biomarker of biological versus chronological age would have significant impact on clinical care. It could be used to identify individuals at risk of early-onset frailty or the multimorbidities associated with old age. It may also serve as a surrogate endpoint in clinical trials targeting mechanisms of aging. Here, we identified MCP-1/CCL2, a chemokine responsible for recruiting monocytes, as a potential biomarker of biological age. Circulating monocyte chemoattractant protein-1 (MCP-1) levels increased in an age-dependent manner in wild-type (WT) mice...
December 31, 2017: Aging Cell
https://www.readbyqxmd.com/read/29288710/hbp-induces-the-expression-of-monocyte-chemoattractant-protein-1-via-the-fak-pi3k-akt-and-p38-mapk-nf-%C3%AE%C2%BAb-pathways-in-vascular-endothelial-cells
#18
Mengling Chang, Feng Guo, Zengding Zhou, Xiaoqin Huang, Lei Yi, Yi Dou, Jingning Huan
Inflammation is characterized by early influx of polymorphonuclear neutrophils (PMNs), followed by a second wave of monocyte recruitment. PMNs mediate monocyte recruitment via their release of heparin binding protein (HBP), which activates CCR2 (CC-chemokine receptor 2) on monocytes. However, the pathways for such signal transmission remain unknown. Accumulating evidences have highlighted the importance of leukocyte-endothelial cell interactions in the initiation of inflammation. In this study, an interesting finding is that HBP enhances the secretion of monocyte chemotactic protein 1(MCP-1), ligand of CCR2, from a third party, the endothelial cells (ECs)...
December 27, 2017: Cellular Signalling
https://www.readbyqxmd.com/read/29288273/pro-inflammatory-cytokines-after-an-episode-of-acute-pancreatitis-associations-with-fasting-gut-hormone-profile
#19
Sayali A Pendharkar, Ruma G Singh, Shayal K Chand, Aya Cervantes, Maxim S Petrov
INTRODUCTION: Pro-inflammatory cytokines, such as interleukin (IL)-6, tumour necrosis factor (TNF)α, and monocyte chemoattractant protein (MCP)-1, are often elevated in individuals after acute pancreatitis but what determines their levels is poorly understood. Gut hormones have emerged as possible modulators of inflammatory response. The aim was to investigate the associations between pro-inflammatory cytokines and a comprehensive panel of gut hormones after an episode of acute pancreatitis...
December 29, 2017: Inflammation Research: Official Journal of the European Histamine Research Society ... [et Al.]
https://www.readbyqxmd.com/read/29286384/synthesis-of-monocyte-targeting-peptide-amphiphile-micelles-for-imaging-of-atherosclerosis
#20
Christopher Poon, Manjima Sarkar, Eun Ji Chung
Atherosclerosis is a major contributor to cardiovascular disease, the leading cause of death worldwide, which claims 17.3 million lives annually. Atherosclerosis is also the leading cause of sudden death and myocardial infarction, instigated by unstable plaques that rupture and occlude the blood vessel without warning. Current imaging modalities cannot differentiate between stable and unstable plaques that rupture. Peptide amphiphiles micelles (PAMs) can overcome this drawback as they can be modified with a variety of targeting moieties that bind specifically to diseased tissue...
November 17, 2017: Journal of Visualized Experiments: JoVE
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