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https://www.readbyqxmd.com/read/28742001/molecular-cloning-of-porcine-siglec-3-siglec-5-and-siglec-10-and-identification-of-siglec-10-as-an-alternative-receptor-for-porcine-reproductive-and-respiratory-syndrome-virus-prrsv
#1
Jiexiong Xie, Isaura Christiaens, Bo Yang, Wander Van Breedam, Tingting Cui, Hans J Nauwynck
In recent years, several entry mediators have been characterized for porcine reproductive and respiratory syndrome virus (PRRSV). Porcine sialoadhesin [pSn, also known as sialic acid-binding immunoglobulin-type lectin (Siglec-1)] and porcine CD163 (pCD163) have been identified as the most important host entry mediators that can fully coordinate PRRSV infection into macrophages. However, recent isolates have not only shown a tropism for sialoadhesin-positive cells, but also for sialoadhesin-negative cells. This observation might be partly explained by the existence of additional receptors that can support PRRSV binding and entry...
July 26, 2017: Journal of General Virology
https://www.readbyqxmd.com/read/28739622/an-unusual-case-of-interstitial-lung-disease-in-a-patient-with-cardiopulmonary-syndrome-as-the-initial-presentation-of-erdheim-chester-disease
#2
Domingo Franco-Palacios, April McDonald, R Neal Aguillard, Allen Berry
Erdheim-Chester disease (ECD) is a very rare disorder with only approximately 600 cases reported in the literature. ECD has been recently reclassified as a histiocytic dendritic cell neoplasm. The clinical spectrum ranges from asymptomatic tissue accumulation of histiocytes to invasive tissue infiltration, which can cause fulminant multisystem failure. It typically presents with bone pain and constitutional symptoms. Extraosseous manifestations are not uncommon. ECD-associated interstitial lung disease has been described in 20%-35% of patients...
July 24, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28725433/macrophage-type-2-differentiation-in-a-patient-with-laryngeal-squamous-cell-carcinoma-and-metastatic-prostate-adenocarcinoma-to-the-cervical-lymph-nodes
#3
Michael C Topf, Madalina Tuluc, Larry A Harshyne, Adam Luginbuhl
BACKGROUND: The tumor microenvironment often polarizes infiltrating macrophages towards a type 2, or M2 phenotype, that is characterized by expression of various cysteine-rich, scavenger receptors, including CD163. The primary function of M2 macrophages is to facilitate wound healing. As such, they are capable of providing metabolic support to a growing tumor, neovascularization, as well as protection from cytotoxic T cells. The tumor microenvironment contains a milieu of secreted factors and vesicles, which in certain circumstances can gain access to lymphatic vessels that drain to local lymph nodes...
2017: Journal for Immunotherapy of Cancer
https://www.readbyqxmd.com/read/28724788/multiparametric-immune-profiling-in-hpv-oral-squamous-cell-cancer
#4
Zipei Feng, Daniel Bethmann, Matthias Kappler, Carmen Ballesteros-Merino, Alexander Eckert, R Bryan Bell, Allen Cheng, Tuan Bui, Rom Leidner, Walter J Urba, Kent Johnson, Clifford Hoyt, Carlo B Bifulco, Juergen Bukur, Claudia Wickenhauser, Barbara Seliger, Bernard A Fox
Evaluation of T lymphocyte frequency provides prognostic information for patients with oral squamous cell cancer (OSCC). However, the effect of simultaneously evaluating T cell frequency and assessing suppressive elements and defects in antigen-processing machinery (APM) has not been clarified. Simultaneous characterization of CD3+, CD8+, FoxP3+, CD163+, and PD-L1+ cells using multispectral imaging was performed on sections from 119 patients with HPV- OSCC. Expression of β2-microglobulin, MHC class I heavy chain, and large multifunctional peptidase 10 was quantified, and all data were correlated with patient outcome...
July 20, 2017: JCI Insight
https://www.readbyqxmd.com/read/28723708/subclinical-herpesvirus-shedding-among-hiv-1-infected-men-on-antiretroviral-therapy
#5
Arcadio Agudelo-Hernandez, Yue Chen, Arlene Bullotta, William G Buchanan, Cynthia R Klamar-Blain, Luann Borowski, Sharon A Riddler, Charles R Rinaldo, Bernard Jc Macatangay
DESIGN: We evaluated the subclinical shedding of 6 different herpesviruses in antiretroviral drug-treated HIV(+) men who have sex with men (MSM), and determined how this is associated with markers of inflammation and immune activation. METHODS: We obtained blood, semen, throat washing, urine, and stool from 15 antiretroviral-treated HIV-1-infected MSM with CD4 T cell reconstitution, and 12 age-matched HIV(-) MSM from the Multicenter AIDS Cohort Study at 4 timepoints over 24 weeks to measure DNA levels of cytomegalovirus (CMV), Epstein-Barr virus (EBV), herpes simplex virus 1 and 2, human herpesvirus 6 (HHV6), and HHV8...
July 18, 2017: AIDS
https://www.readbyqxmd.com/read/28723685/downregulation-of-macrophage-derived-t-ucr-uc-306-associates-with-poor-prognosis-in-hepatocellular-carcinoma
#6
Hong-Lin Luo, Jie Chen, Tao Luo, Fei-Xiang Wu, Jun-Jie Liu, Hui-Feng Wang, Miao Chen, Le-Qun Li, Hang Li
BACKGROUND/AIMS: Increasing evidence suggests that T-UCRs are involved in the development of cancer. In this study, we evaluated the role of a macrophage-derived T-UCR, uc.306, in the prognosis of hepatitis B (HBV)-related hepatocellular carcinoma (HCC). METHODS: The uc.306 was obtained by screening microassay data obtained during the polarization of U937 cells from the M2 to M1 phenotype. Uc.306 and macrophage molecule markers were detected by qPCR. Immunohistochemical (IHC) assays were used to examine the M1/M2 status of 90 paired HCC tissues...
July 19, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28716144/macrophage-type-2-differentiation-in-a-patient-with-laryngeal-squamous-cell-carcinoma-and-metastatic-prostate-adenocarcinoma-to-the-cervical-lymph-nodes
#7
Michael C Topf, Madalina Tuluc, Larry A Harshyne, Adam Luginbuhl
BACKGROUND: The tumor microenvironment often polarizes infiltrating macrophages towards a type 2, or M2 phenotype, that is characterized by expression of various cysteine-rich, scavenger receptors, including CD163. The primary function of M2 macrophages is to facilitate wound healing. As such, they are capable of providing metabolic support to a growing tumor, neovascularization, as well as protection from cytotoxic T cells. The tumor microenvironment contains a milieu of secreted factors and vesicles, which in certain circumstances can gain access to lymphatic vessels that drain to local lymph nodes...
July 18, 2017: Journal for Immunotherapy of Cancer
https://www.readbyqxmd.com/read/28715286/effects-of-lifestyle-intervention-on-soluble-cd163-a-macrophage-activation-marker-in-patients-with-non-alcoholic-fatty-liver-disease
#8
Sidsel Rødgaard-Hansen, Alexis St George, Konstantin Kazankov, Adrian Bauman, Jacob George, Henning Grønbæk, Holger Jon Møller
OBJECTIVE: Liver macrophages play an important role in the pathogenesis of non-alcoholic fatty liver disease (NAFLD). Soluble CD163 (sCD163), a macrophage-specific biomarker, reflects disease activity in the range of liver diseases. The impact of lifestyle intervention on sCD163 in adult NAFLD patients has not been investigated. MATERIAL AND METHODS: We assessed 126 NAFLD patients participating in a lifestyle intervention study for sCD163 concentrations at baseline, after the three-month intervention period, and at long-term follow-up after 12 and 24 months...
July 17, 2017: Scandinavian Journal of Clinical and Laboratory Investigation
https://www.readbyqxmd.com/read/28705613/aging-related-effects-of-bed-rest-followed-by-eccentric-exercise-rehabilitation-on-skeletal-muscle-macrophages-and-insulin-sensitivity
#9
Paul T Reidy, Catherine C Lindsay, Alec I McKenzie, Christopher S Fry, Mark A Supiano, Robin L Marcus, Paul C LaStayo, Micah J Drummond
The pro- and anti-inflammatory macrophages are associated with insulin sensitivity and skeletal muscle regeneration. Infiltrating macrophages in skeletal muscle during a period of physical inactivity and subsequent reloading/rehabilitation in older adults is unknown, but may provide insight into mechanisms related to the development of metabolic disease and changes in muscle cell size. The purpose of this study was to determine if skeletal muscle macrophage infiltration is modulated differently between young and older adults after bed rest and exercise rehabilitation and if these responses are related to muscle and insulin sensitivity changes...
July 10, 2017: Experimental Gerontology
https://www.readbyqxmd.com/read/28698008/prognostic-significance-of-tumor-associated-macrophages-in-ovarian-cancer-a-meta-analysis
#10
REVIEW
Xia Yuan, Jing Zhang, Dan Li, Ye Mao, Fei Mo, Wei Du, Xuelei Ma
OBJECTIVE: The role of tumor-associated macrophages (TAMs) in tumor microenvironment remains controversial due to the two different polarized subsets of TAMs. Here, we performed a meta-analysis to evaluate the correlation between subpopulations of TAMs and clinical outcomes in patients with ovarian cancer. METHODS: A comprehensive search in PUBMED/Medline and EMBASE databases was performed. The association between TAMs and patient prognosis of ovarian cancer was estimated with hazard ratios (HRs) and their corresponding 95% confidence intervals (95% CIs) using a random-effect model...
July 8, 2017: Gynecologic Oncology
https://www.readbyqxmd.com/read/28692538/metabolic-syndrome-and-obesity-are-the-cornerstones-of-liver-fibrosis-in-hiv-monoinfected-patients-results-of-the-metafib-study
#11
Maud Lemoine, Karine Lacombe, Jean Philippe Bastard, Manuela Sébire, Laurent Fonquernie, Nadia Valin, Soraya Fellahi, Jacqueline Capeau, Pierre-Marie Girard, Jean-Luc Meynard
BACKGROUND: Metabolic syndrome (MetS) and nonalcoholic fatty liver disease (NAFLD) have become a common finding in HIV-infected patients. However, the severity, risk factors and pathogenesis of liver fibrosis in this population have been poorly documented. OBJECTIVES: to assess the impact of MetS on liver fibrosis and analyze the association between MetS, liver fibrosis and markers of adipose tissue and macrophage activation. METHODS: In a matched cohort of HIV-1-monoinfected patients with and without MetS, after exclusion of other causes of liver disease, we assessed liver stiffness measurement (LSM) and measured levels of serum adipokines, HOMA index and soluble CD163 and CD14 as markers of fat, insulin resistance and macrophage/monocyte activation, respectively...
July 7, 2017: AIDS
https://www.readbyqxmd.com/read/28690546/repeated-excessive-exercise-attenuates-the-anti-inflammatory-effects-of-exercise-in-older-men
#12
Ronni E Sahl, Peter R Andersen, Katja Gronbaek, Thomas H Morville, Mads Rosenkilde, Hanne K Rasmusen, Steen S Poulsen, Clara Prats, Flemming Dela, Jørn W Helge
Introduction/Purpose: A number of studies have investigated the effect of training with a moderate exercise dose (3-6 h/weekly) on the inflammatory profile in blood, and the data are inconsistent. Cross-sectional studies indicate a positive effect of physical activity level on inflammation levels and risk of metabolic disease. However, it is not clear whether this may be dose dependent and if very prolonged repeated exercise therefore may be beneficial for low-grade inflammation. Based on this we studied how excessive repeated prolonged exercise influenced low-grade inflammation and adipose tissue anti-inflammatory macrophage content in six older male recreationally trained cyclists...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28689650/relative-contribution-of-porcine-reproductive-and-respiratory-syndrome-virus-open-reading-frames-2-4-to-the-induction-of-protective-immunity
#13
Kathryn Kimpston-Burkgren, Ignacio Correas, Fernando A Osorio, David Steffen, Asit K Pattnaik, Ying Fang, Hiep L X Vu
The minor glycoproteins (GPs) of PRRSV, GP2, GP3, and GP4, form a heterotrimer that is required for viral infectivity, presumably due to its interaction with the key cellular receptor CD163. These 3GPs are encoded by open reading frames (ORFs) 2a, 3 and 4 (herein referred to as ORFs 2-4), respectively. The goal of this study was to investigate the immunogenicity of the PRRSV-2 minor GPs. Through the use of reverse genetics, a chimeric virus (designated SDFL24) was constructed by replacing ORFs 2-4 of the PRRSV-1 strain SD01-08 with the corresponding genes of the PRRSV-2 strain FL12...
July 6, 2017: Vaccine
https://www.readbyqxmd.com/read/28687956/cd163-positive-cancer-cells-are-potentially-associated-with-high-malignant-potential-in-clear-cell-renal-cell-carcinoma
#14
Chaoya Ma, Hasita Horlad, Koji Ohnishi, Takenobu Nakagawa, Sohsuke Yamada, Shohei Kitada, Takanobu Motoshima, Tomomi Kamba, Toshiyuki Nakayama, Naohiro Fujimoto, Motohiro Takeya, Yoshihiro Komohara
CD163 is preferentially expressed by monocyte/macrophages; however, recent studies using immunohistochemistry (IHC) have reported that some cancer cells also express CD163. In the present IHC study, we investigated CD163 staining of cancer cells and macrophages in clear cell renal cell carcinoma (ccRCC) tissues and determined the relationship between cancer cell CD163 expression and clinical prognosis in patients with ccRCC. IHC for CD163 was performed in ccRCC tissues from 103 patients. CD163-positive cancer cells were detected in 35% of the patients (36/103); however, the positive signals on cancer cells were significantly lower than those on macrophages...
July 7, 2017: Medical Molecular Morphology
https://www.readbyqxmd.com/read/28687085/regulation-of-early-growth-response-2-expression-by-secreted-frizzled-related-protein-1
#15
Kelly J Gregory, Stephanie M Morin, Sallie S Schneider
BACKGROUND: Secreted frizzled-related protein 1 (SFRP1) expression is down-regulated in a multitude of cancers, including breast cancer. Loss of Sfrp1 also exacerbates weight gain as well as inflammation. Additionally, loss of SFRP1 enhances TGF-β signaling and the downstream MAPK pathway. TGF-β has been shown to increase the expression of Early Growth Response 2 (EGR2), a transcription factor implicated in immune function in a wide variety of cell types. The work described here was initiated to determine whether SFRP1 modulation affects TGF-β mediated EGR2 expression in mammary tissues as well as macrophage polarization...
July 7, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28684130/indoleamine-2-3-dioxygenase-and-iron-are-required-for-mycobacterium-leprae-survival
#16
Mayara Garcia de Mattos Barbosa, Rhana Berto da Silva Prata, Priscila Ribeiro Andrade, Helen Ferreira, Bruno Jorge de Andrade Silva, Jéssica Araújo da Paixão de Oliveira, Tayná Quintella Assis, Thiago Gomes de Toledo-Pinto, Ohanna Cavalcanti de Lima Bezerra, José Augusto da Costa Nery, Patricia Sammarco Rosa, Marcelo Torres Bozza, Flávio Alves Lara, Milton Ozório Moraes, Veronica Schmitz, Euzenir Nunes Sarno, Roberta Olmo Pinheiro
Our previous study has demonstrated that IL-10 may modulate both indoleamine 2,3-dioxygenase (IDO) and CD163 expression in lepromatous leprosy (LL) cells, favoring Mycobacterium leprae persistence through induction of regulatory pathways and iron storage. Here, we observed that in LL lesion cells there is an increase in the expression of proteins involved in iron metabolism such as hemoglobin (Hb), haptoglobin, heme oxygenase 1 and transferrin receptor 1 (TfR1) when compared to tuberculoid leprosy (BT) cells...
July 3, 2017: Microbes and Infection
https://www.readbyqxmd.com/read/28680905/high-cellular-monocyte-activation-in-people-living-with-human-immunodeficiency-virus-on-combination-antiretroviral-therapy-and-lifestyle-matched-controls-is-associated-with-greater-inflammation-in-cerebrospinal-fluid
#17
Thijs Booiman, Ferdinand W Wit, Irma Maurer, Davide De Francesco, Caroline A Sabin, Agnes M Harskamp, Maria Prins, Paolo Garagnani, Chiara Pirazzini, Claudio Franceschi, Dietmar Fuchs, Magnus Gisslén, Alan Winston, Peter Reiss, Neeltje A Kootstra
BACKGROUND: Increased monocyte activation and intestinal damage have been shown to be predictive for the increased morbidity and mortality observed in treated people living with human immunodeficiency virus (PLHIV). METHODS: A cross-sectional analysis of cellular and soluble markers of monocyte activation, coagulation, intestinal damage, and inflammation in plasma and cerebrospinal fluid (CSF) of PLHIV with suppressed plasma viremia on combination antiretroviral therapy and age and demographically comparable HIV-negative individuals participating in the Comorbidity in Relation to AIDS (COBRA) cohort and, where appropriate, age-matched blood bank donors (BBD)...
2017: Open Forum Infectious Diseases
https://www.readbyqxmd.com/read/28680758/immune-classifications-with-cytotoxic-cd8-and-th17-infiltrates-are-predictors-of-clinical-prognosis-in-glioblastoma
#18
Rachid Madkouri, Coureche Guillaume Kaderbhai, Aurélie Bertaut, Caroline Truntzer, Julie Vincent, Marie Hélene Aubriot-Lorton, Walid Farah, Emeric Limagne, Sylvain Ladoire, Romain Boidot, Valentin Derangère, François Ghiringhelli
BACKGROUND: Interest is growing on immune cells involvement in central nervous system tumors such as glioblastoma. Even if a few reports highlighted that immune classifications could have a prognostic value, no paradigm has been clearly yet established on large and homogeneous cohorts. The aim of our study was to analyze the prognostic role of the in situ immune response of cytotoxic T cells (i.e., CD8(+)), Foxp3 cells, Th17 and tumor-associated macrophages in glioblastoma on two independent large and homogeneous cohorts...
2017: Oncoimmunology
https://www.readbyqxmd.com/read/28679964/optimum-immunohistochemical-procedures-for-analysis-of-macrophages-in-human-and-mouse-formalin-fixed-paraffin-embedded-tissue-samples
#19
Takenobu Nakagawa, Koji Ohnishi, Yui Kosaki, Yoichi Saito, Hasita Horlad, Yukio Fujiwara, Motohiro Takeya, Yoshihiro Komohara
Macrophages are closely related to various diseases and it is therefore important that the properties of macrophages are adequately evaluated in human diseases and mouse disease models. Immunohistochemistry (IHC) of formalin fixed paraffin-embedded (FFPE) samples is a very useful tool for examination of macrophages; however, an adequate IHC protocol is required for the examination of macrophage states. In this study, we assessed various antigen retrieval methods in order to devise the optimal protocols for staining of macrophages with a range of antibodies...
2017: Journal of Clinical and Experimental Hematopathology: JCEH
https://www.readbyqxmd.com/read/28673320/the-clinical-importance-of-tumour-infiltrating-macrophages-and-dendritic-cells-in-periampullary-adenocarcinoma-differs-by-morphological-subtype
#20
Sebastian Lundgren, Emelie Karnevi, Jacob Elebro, Björn Nodin, Mikael C I Karlsson, Jakob Eberhard, Karin Leandersson, Karin Jirström
BACKGROUND: Dendritic cells (DC) and tumour-associated macrophages (TAM) are essential in linking the innate and adaptive immune response against tumour cells and tumour progression. These cells are also potential target for immunotherapy as well as providing a handle to investigate immune status in the tumour microenvironment. The aim of the present study was to examine their impact on prognosis and chemotherapy response in periampullary adenocarcinoma, including pancreatic cancer, with particular reference to morphological subtype...
July 3, 2017: Journal of Translational Medicine
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