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circulating Monocyte cells

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https://www.readbyqxmd.com/read/28726251/effect-of-radical-prostatectomy-on-levels-of-cancer-related-epitopes-in-circulating-macrophages-of-patients-with-clinically-localized-prostate-cancer
#1
Tilman Todenhöfer, Jörg Hennenlotter, Gabriel Keller, Tim Neumann, Arnulf Stenzl, Jens Bedke
OBJECTIVE: Epitopes of the apoptosis related protein DNaseX (Apo10) and the pentose-phosphate-pathway associated protein transketolase-like 1 (TKTL1) have been shown to be increased in circulating macrophages of patients with different cancer types including prostate cancer (PC). So far, the effect of cancer-specific therapies on the levels of these markers in blood samples of patients with PC has not been evaluated yet. The aim of the present study was to prospectively assess the effect of surgical removal of the prostate on levels of Apo10 and TKTL1 in blood macrophages using Epitope Detection In Monocytes (EDIM)...
July 20, 2017: Prostate
https://www.readbyqxmd.com/read/28720870/monocyte-adhesion-to-atherosclerotic-matrix-proteins-is-enhanced-by-asn-gly-arg-deamidation
#2
Bamaprasad Dutta, Jung Eun Park, Subodh Kumar, Piliang Hao, Xavier Gallart-Palau, Aida Serra, Yan Ren, Vitaly Sorokin, Chuen Neng Lee, Hee Hwa Ho, Dominique de Kleijn, Siu Kwan Sze
Atherosclerosis arises from leukocyte infiltration and thickening of the artery walls and constitutes a major component of vascular disease pathology, but the molecular events underpinning this process are not fully understood. Proteins containing an Asn-Gly-Arg (NGR) motif readily undergo deamidation of asparagine to generate isoDGR structures that bind to integrin αvβ3 on circulating leukocytes. Here we report the identification of isoDGR motifs in human atherosclerotic plaque components including extracellular matrix (ECM) proteins fibronectin and tenascin C, which have been strongly implicated in human atherosclerosis...
July 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28720095/fibrocyte-measurement-in-peripheral-blood-correlates-with-number-of-cultured-mature-fibrocytes-in-vitro-and-is-a-potential-biomarker-for-interstitial-lung-disease-in-rheumatoid-arthritis
#3
Søren Andreas Just, Hanne Lindegaard, Eva Kildall Hejbøl, Jesper Rømhild Davidsen, Niels Bjerring, Søren Werner Karlskov Hansen, Henrik Daa Schrøder, Inger Marie Jensen Hansen, Torben Barington, Christian Nielsen
BACKGROUND: Interstitial lung disease (ILD) can be a severe extra-articular disease manifestation in Rheumatoid Arthritis (RA). A potential role of fibrocytes in RA associated ILD (RA-ILD) has not previously been described. We present a modified faster method for measuring circulating fibrocytes, without intracellular staining. The results are compared to the traditional culture method, where the number of monocytes that differentiate into mature fibrocytes in vitro are counted. The results are following compared to disease activity in patients with severe asthma, ILD, RA (without diagnosed ILD) and RA with verified ILD (RA-ILD)...
July 18, 2017: Respiratory Research
https://www.readbyqxmd.com/read/28719147/human-immunology-studies-using-organ-donors-impact-of-clinical-variations-on-immune-parameters-in-tissues-and-circulation
#4
D J Carpenter, T Granot, N Matsuoka, T Senda, B V Kumar, J J C Thome, C L Gordon, M Miron, J Weiner, T Connors, H Lerner, A Friedman, T Kato, A D Griesemer, D L Farber
Organ donors are sources of physiologically healthy organs and tissues for life-saving transplantation, and have been recently used for human immunology studies which are typically confined to the sampling of peripheral blood. Donors comprise a diverse population with different causes of death and clinical outcomes during hospitalization, and the effects of such variations on immune parameters in blood and tissues are not known. We present here coordinate analyses of innate and adaptive immune components in blood, lymphoid (bone marrow, spleen, lymph nodes), and mucosal (lungs, intestines) sites from a population of brain-dead organ donors (3-months-93-years; n=291) across eight clinical parameters...
July 18, 2017: American Journal of Transplantation
https://www.readbyqxmd.com/read/28715799/resident-arterial-cells-and-circulating-bone-marrow-derived-cells-both-contribute-to-intimal-hyperplasia-in-a-rat-allograft-carotid-transplantation-model
#5
Yi He, Xin Xu, Ting Zhu, Min Tang, Ju Mei, Yi Si
BACKGROUND/AIMS: Neointimal formation following vascular injury remains a major mechanism of restenosis, whereas the precise sources of neointimal cells are still uncertain. We tested the hypothesis that both injured arterial cells and non-arterial cells contribute to intimal hyperplasia. METHODS: Following allograft transplantation of the balloon-injured carotid common artery (n = 3-6), the cellular composition of the transplant grafts and the origins of neointimal cells were measured by immunohistochemistry and immunofluorescence staining...
July 11, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28712812/peroxynitrite-footprint-in-circulating-neutrophils-of-abdominal-aortic-aneurysm-patients-is-lower-in-statin-than-in-non-statin-users
#6
M E Groeneveld, J J van der Reijden, G J Tangelder, L C Westin, L Renwarin, R J P Musters, W Wisselink, K K Yeung
OBJECTIVES: Extensive reactive oxygen and nitrogen species (also reactive species) production is a mechanism involved in abdominal aortic aneurysm (AAA) development. White blood cells (WBCs) are a known source of reactive species. Their production may be decreased by statins, thereby reducing the AAA growth rate. Reactive species production in circulating WBCs of AAA patients and the effect of statins on their production was investigated. METHODS: This observational study investigated reactive species production in vivo and ex vivo in circulating WBCs of AAA patients, using venous blood from patients prior to elective AAA repair (n = 34; 18 statin users) and from healthy volunteers (n = 10)...
July 14, 2017: European Journal of Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/28706969/quantitative-analysis-of-immune-cell-subset-infiltration-of-supraspinatus-muscle-after-severe-rotator-cuff-injury
#7
J R Krieger, L E Tellier, M T Ollukaren, J S Temenoff, E A Botchwey
Rotator cuff tears cause muscle degeneration that is characterized by myofiber atrophy, fatty infiltration, and fibrosis and is minimally responsive to current treatment options. The underlying pathogenesis of rotator cuff muscle degeneration remains to be elucidated, and increasing evidence implicates immune cell infiltration as a significant factor. Because immune cells are comprised of highly heterogeneous subpopulations that exert divergent effects on injured tissue, understanding trafficking and accumulation of immune subpopulations may hold the key to more effective therapies...
June 2017: Regenerative Engineering and Translational Medicine
https://www.readbyqxmd.com/read/28706280/radiation-induced-changes-in-the-glycome-of-endothelial-cells-with-functional-consequences
#8
Cyprien Jaillet, Willy Morelle, Marie-Christine Slomianny, Vincent Paget, Georges Tarlet, Valérie Buard, Sonia Selbonne, Fanny Caffin, Emilie Rannou, Pierre Martinez, Agnès François, François Foulquier, Fabrice Allain, Fabien Milliat, Olivier Guipaud
As it is altered by ionizing radiation, the vascular network is considered as a prime target in limiting normal tissue damage and improving tumor control in radiation therapy. Irradiation activates endothelial cells which then participate in the recruitment of circulating cells, especially by overexpressing cell adhesion molecules, but also by other as yet unknown mechanisms. Since protein glycosylation is an important determinant of cell adhesion, we hypothesized that radiation could alter the glycosylation pattern of endothelial cells and thereby impact adhesion of circulating cells...
July 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28705256/monocyte-programmed-death-ligand-1-expression-is-an-early-marker-for-predicting-infectious-complications-in-acute-pancreatitis
#9
Tingting Pan, Tianyun Zhou, Lei Li, Zhaojun Liu, Ying Chen, Enqiang Mao, Meiling Li, Hongping Qu, Jialin Liu
BACKGROUND: Acute pancreatitis (AP) is a life-threatening disease that requires early identification of patients at risk of developing infectious complications. Immunosuppression is an initial event that is key to AP pathogenesis. The programmed cell death 1 (PD-1) and programmed cell death ligand 1 (PD-L1) system is reported to mediate evasion of host immune surveillance in many diseases; however, the relationship between PD-1/PD-L1 expression and these parameters or infectious complications in AP has not been elucidated...
July 14, 2017: Critical Care: the Official Journal of the Critical Care Forum
https://www.readbyqxmd.com/read/28700897/a-systematic-comparison-of-clinically-viable-nanomedicines-targeting-hmg-coa-reductase-in-inflammatory-atherosclerosis
#10
Amr Alaarg, Max L Senders, Aida Varela-Moreira, Carlos Pérez-Medina, Yiming Zhao, Jun Tang, Francois Fay, Thomas Reiner, Zahi A Fayad, Wim E Hennink, Josbert M Metselaar, Willem J M Mulder, Gert Storm
Atherosclerosis is a leading cause of worldwide morbidity and mortality whose management could benefit from novel targeted therapeutics. Nanoparticles are emerging as targeted drug delivery systems in chronic inflammatory disorders. To optimally exploit nanomedicines, understanding their biological behavior is crucial for further development of clinically relevant and efficacious nanotherapeutics intended to reduce plaque inflammation. Here, three clinically relevant nanomedicines, i.e., high-density lipoprotein ([S]-HDL), polymeric micelles ([S]-PM), and liposomes ([S]-LIP), that are loaded with the HMG-CoA reductase inhibitor simvastatin [S], were evaluated in the apolipoprotein E-deficient (Apoe(-/-)) mouse model of atherosclerosis...
July 9, 2017: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/28698550/the-psmp-ccr2-interactions-trigger-monocyte-macrophage-dependent-colitis
#11
Xiaolei Pei, Danfeng Zheng, Shaoping She, Jing Ma, Changyuan Guo, Xiaoning Mo, Yingmei Zhang, Quansheng Song, Yu Zhang, Dalong Ma, Ying Wang
Monocytes/macrophages have been found to be an important component of colitis. However, the key chemokine that initiates the CCR2(+) monocytes migration from circulation to colitis tissue remains to be undiscovered. PC3-secreted microprotein (PSMP) is a novel chemokine whose receptor is CCR2. The physiological and pathological functions of PSMP have not yet been reported. In this study, PSMP was found to be expressed in colitis and colonic tumor tissues from patients and significantly up-regulated in mouse DSS-induced colitis tissues...
July 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28696252/thermoneutrality-but-not-ucp1-deficiency-suppresses-monocyte-mobilization-into-blood
#12
Jesse W Williams, Andrew F Elvington, Stoyan Ivanov, Skyler Kessler, Hannah Luehmann, Osamu Baba, Brian T Saunders, Ki-Wook Kim, Michael W Johnson, Clarissa S Craft, Jae-Hoon Choi, Mary G Sorci-Thomas, Bernd H Zinselmeyer, Jonathan R Brestoff, Yongjian Liu, Gwendalyn J Randolph
Rationale: Ambient temperature is a risk factor for cardiovascular disease. Cold weather increases cardiovascular events, but paradoxically, cold exposure is metabolically protective due to UCP1-dependent thermogenesis. Objective: We sought to determine the differential effects of ambient environmental temperature challenge and UCP1 activation in relation to cardiovascular disease progression. Methods and Results: Using mouse models of atherosclerosis housed at three different ambient temperatures, we observed that cold temperature enhanced while thermoneutral housing temperature inhibited atherosclerotic plaque growth, as did deficiency in UCP1...
July 10, 2017: Circulation Research
https://www.readbyqxmd.com/read/28694023/reactivity-toward-bifidobacterium-longum-and-enterococcus-hirae-demonstrate-robust-cd8-t-cell-response-and-better-prognosis-in-hbv-related-hepatocellular-carcinoma
#13
Yihui Rong, Zheng Dong, Zhixian Hong, Yun Jin, Wei Zhang, Bailong Zhang, Wei Mao, Huifang Kong, Chunping Wang, Bin Yang, Xudong Gao, Zhenyu Song, Susan E Green, Haihan K Song, Hongbo Wang, Yinying Lu
Recent studies suggest that several bacterial species are involved in tumor immunosurveillance and antitumor immunity. The role of bacteria in immune responses in HBV-related hepatocellular carcinoma (HCC) patients is still unknown. In this study, we examined the bacteria-reactive CD8(+) T cell response in patients with HBV-related HCC. We found that circulating CD8(+) T cells from healthy individuals demonstrated minimal or zero specificity toward a series of commensals and bacteria previously associated with antitumor effects, including Escherichia coli, Enterococcus faecium, Bifidobacterium longum, Bacteroides fragilis, and Enterococcus hirae...
July 7, 2017: Experimental Cell Research
https://www.readbyqxmd.com/read/28689360/regulatory-myeloid-cells-an-underexplored-continent-in-b-cell-lymphomas
#14
REVIEW
Mikael Roussel, Jonathan M Irish, Cedric Menard, Faustine Lhomme, Karin Tarte, Thierry Fest
In lymphomas arising from the germinal center, prognostic factors are linked to the myeloid compartment. In particular, high circulating monocyte or myeloid-derived suppressor cell counts are associated with poor prognosis for patients with high-grade B-cell lymphomas. Macrophages with an M2 phenotype are enriched within lymphoma tumors. However, the M1/M2 nomenclature is now deprecated and the clinical impact of this phenotype remains controversial. Across cancer types, myeloid cells are primarily thought to function as immune suppressors during tumor initiation and maintenance, but the biological mechanisms behind the myeloid signatures are still poorly understood in germinal center B-cell lymphomas...
July 8, 2017: Cancer Immunology, Immunotherapy: CII
https://www.readbyqxmd.com/read/28688082/circulating-myeloid-derived-suppressor-cells-increase-in-patients-undergoing-neo-adjuvant-chemotherapy-for-breast-cancer
#15
Robert Wesolowski, Megan C Duggan, Andrew Stiff, Joseph Markowitz, Prashant Trikha, Kala M Levine, Lynn Schoenfield, Mahmoud Abdel-Rasoul, Rachel Layman, Bhuvaneswari Ramaswamy, Erin R Macrae, Maryam B Lustberg, Raquel E Reinbolt, Ewa Mrozek, John C Byrd, Michael A Caligiuri, Thomas A Mace, William E Carson Iii
This study sought to evaluate whether myeloid-derived suppressor cells (MDSC) could be affected by chemotherapy and correlate with pathologic complete response (pCR) in breast cancer patients receiving neo-adjuvant chemotherapy. Peripheral blood levels of granulocytic (G-MDSC) and monocytic (M-MDSC) MDSC were measured by flow cytometry prior to cycle 1 and 2 of doxorubicin and cyclophosphamide and 1st and last administration of paclitaxel or paclitaxel/anti-HER2 therapy. Of 24 patients, 11, 6 and 7 patients were triple negative, HER2+ and hormone receptor+, respectively...
July 7, 2017: Cancer Immunology, Immunotherapy: CII
https://www.readbyqxmd.com/read/28683469/lurbinectedin-reduces-tumour-associated-macrophages-and-the-inflammatory-tumour-microenvironment-in-preclinical-models
#16
Cristina Belgiovine, Ezia Bello, Manuela Liguori, Ilaria Craparotta, Laura Mannarino, Lara Paracchini, Luca Beltrame, Sergio Marchini, Carlos M Galmarini, Alberto Mantovani, Roberta Frapolli, Paola Allavena, Maurizio D'Incalci
BACKGROUND: Lurbinectedin is a novel anticancer agent currently undergoing late-stage (Phase II /III) clinical evaluation in platinum-resistant ovarian, BRCA1/2-mutated breast and small-cell lung cancer. Lurbinectedin is structurally related to trabectedin and it inhibits active transcription and the DNA repair machinery in tumour cells. METHODS: In this study we investigated whether lurbinectedin has the ability to modulate the inflammatory microenvironment and the viability of myeloid cells in tumour-bearing mice...
July 6, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/28681454/human-monocytes-downregulate-innate-response-receptors-following-exposure-to-the-microbial-metabolite-n-butyrate
#17
Felix Lasitschka, Thomas Giese, Marco Paparella, Stefan R Kurzhals, Guido Wabnitz, Katrin Jacob, Judith Gras, Konrad A Bode, Anne-Kristin Heninger, Timea Sziskzai, Yvonne Samstag, Cornelia Leszinski, Bettina Jocher, Mohammed Al-Saeedi, Stefan C Meuer, Jutta Schröder-Braunstein
INTRODUCTION: Hyporesponsiveness of human lamina propria immune cells to microbial and nutritional antigens represents one important feature of intestinal homeostasis. It is at least partially mediated by low expression of the innate response receptors CD11b, CD14, CD16 as well as the cystine-glutamate transporter xCT on these cells. Milieu-specific mechanisms leading to the down-regulation of these receptors on circulating monocytes, the precursor cells of resident macrophages, are mostly unknown...
July 6, 2017: Immunity, Inflammation and Disease
https://www.readbyqxmd.com/read/28675904/in-vivo-lipopolysaccharide-tolerance-recruits-cd11b-macrophages-to-the-liver-with-enhanced-bactericidal-activity-and-low-tumor-necrosis-factor-releasing-capability-resulting-in-drastic-resistance-to-lethal-septicemia
#18
Manabu Kinoshita, Hiromi Miyazaki, Hiroyuki Nakashima, Masahiro Nakashima, Makoto Nishikawa, Takuya Ishikiriyama, Shoichiro Kato, Keiichi Iwaya, Sadayuki Hiroi, Nariyoshi Shinomiya, Shuhji Seki
OBJECTIVES: In vivo lipopolysaccharide (LPS) tolerance on bacterial infection was investigated, focusing on liver macrophages. METHODS: LPS tolerance was induced by intraperitoneal injections with 5 μg/kg of LPS for 3 consecutive days, and then mice were intravenously infected with Escherichia coli. RESULTS: All LPS-primed mice survived lethal bacterial infection. Drastic enhancement of bactericidal activity of liver macrophages strongly contributed to bacterial clearance...
July 5, 2017: Journal of Innate Immunity
https://www.readbyqxmd.com/read/28673339/human-limbal-fibroblast-like-stem-cells-induce-immune-tolerance-in-autoreactive-t-lymphocytes-from-female-patients-with-hashimoto-s-thyroiditis
#19
Antonina Coppola, Laura Tomasello, Maria Pitrone, Salvatore Cillino, Pierina Richiusa, Giuseppe Pizzolanti, Carla Giordano
BACKGROUND: Due to their "natural immune privilege" and immunoregulatory properties human fibroblast-like limbal stem cells (f-LSCs) have acquired great interest as a potential tool for achieving immunotolerance. Hashimoto's thyroiditis (HT) is the most common thyroid autoimmune disease and cause of hypothyroidism. To date, conventional hormone replacement therapy and unspecific immunosuppressive regimens cannot provide a definitive cure for HT subjects. We explored the immunosuppressant potential of human f-LSCs on circulating lymphomonocytes (PBMCs) collected from healthy donors and female HT patients...
July 3, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/28667835/monocytes-promote-crescent-formation-in-anti-myeloperoxidase-antibody-induced-glomerulonephritis
#20
Anthony Rousselle, Ralph Kettritz, Adrian Schreiber
Neutrophils and monocytes express anti-neutrophil cytoplasmic antibody (ANCA) antigens, and activation of these cells by ANCA is central to ANCA-associated vasculitis and necrotizing crescentic glomerulonephritis (NCGN). The importance of neutrophils is established; however, any role of monocytes is less clear. We tested the hypothesis that depletion of CCR2(+) inflammatory monocytes and their derivatives would abrogate anti-myeloperoxidase (MPO) antibody-induced NCGN in a mouse model. We used passive anti-MPO antibody transfer for NCGN induction in wild-type mice or mice expressing the CCR2 promoter-controlled diphtheria toxin receptor...
June 28, 2017: American Journal of Pathology
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