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https://www.readbyqxmd.com/read/28937415/biomarkers-in-vasculitis
#1
Gulen Hatemi, Sinem N Esatoglu, Yusuf Yazici
PURPOSE OF REVIEW: Biomarkers are considered to be helpful in diagnosing, monitoring, predicting treatment response, and prognosis in clinical practice and as outcomes in clinical trials. In this article, we review the recent literature on new biomarkers and the expanding use of older ones in vasculitic conditions. RECENT FINDINGS: In antineutrophil cytoplasmic antibody-associated vasculitis patients antineutrophil cytoplasmic antibody type may be useful as a predictor of relapse and response to rituximab...
September 21, 2017: Current Opinion in Rheumatology
https://www.readbyqxmd.com/read/28932682/stroke-associated-pattern-of-gene-expression-previously-identified-by-machine-learning-is-diagnostically-robust-in-an-independent-patient-population
#2
Grant C O'Connell, Paul D Chantler, Taura L Barr
Our group recently employed genome-wide transcriptional profiling in tandem with machine-learning based analysis to identify a ten-gene pattern of differential expression in peripheral blood which may have utility for detection of stroke. The objective of this study was to assess the diagnostic capacity and temporal stability of this stroke-associated transcriptional signature in an independent patient population. Publicly available whole blood microarray data generated from 23 ischemic stroke patients at 3, 5, and 24 h post-symptom onset, as well from 23 cardiovascular disease controls, were obtained via the National Center for Biotechnology Information Gene Expression Omnibus...
December 2017: Genomics Data
https://www.readbyqxmd.com/read/28932639/soluble-nkg2d-ligands-in-the-ovarian-cancer-microenvironment-are-associated-with-an-adverse-clinical-outcome-and-decreased-memory-effector-t-cells-independent-of-nkg2d-downregulation
#3
Maulik Vyas, Silke Reinartz, Nathalie Hoffmann, Katrin S Reiners, Sonja Lieber, Julia M Jansen, Uwe Wagner, Rolf Müller, Elke Pogge von Strandmann
The immune receptor NKG2D is predominantly expressed on NK cells and T cell subsets and confers anti-tumor activity. According to the current paradigm, immune surveillance is counteracted by soluble ligands shed into the microenvironment, which down-regulate NKG2D receptor expression. Here, we analyzed the clinical significance of the soluble NKG2D ligands sMICA and sULBP2 in the malignancy-associated ascites of ovarian cancer. We show that high levels of sMICA and sULBP2 in ascites were associated with a poor prognosis...
2017: Oncoimmunology
https://www.readbyqxmd.com/read/28932633/cd163-positive-tumor-associated-macrophages-and-cd8-positive-cytotoxic-lymphocytes-are-powerful-diagnostic-markers-for-the-therapeutic-stratification-of-osteosarcoma-patients-an-immunohistochemical-analysis-of-the-biopsies-fromthe-french-os2006-phase-3-trial
#4
Anne Gomez-Brouchet, Claire Illac, Julia Gilhodes, Corinne Bouvier, Sébastien Aubert, Jean-Marc Guinebretiere, Béatrice Marie, Frédérique Larousserie, Natacha Entz-Werlé, Gonzague de Pinieux, Thomas Filleron, Véronique Minard, Vincent Minville, Eric Mascard, François Gouin, Marta Jimenez, Marie-Cécile Ledeley, Sophie Piperno-Neumann, Laurence Brugieres, Françoise Rédini
The French phase 3 trial (OS 2006) testing zoledronic acid, an osteoclast inhibitor, with chemotherapy and surgery did not improve the outcome of patients with osteosarcoma (OS). To understand this unexpected result, the presence of infiltrating immune cells was investigated in 124 pre-therapeutic biopsies of patients enrolled in the trial. The percentage of CD68/CD163 tumor-infiltrating macrophages (TAMs), CD8(+) lymphocytes, osteoclasts, and the PD1/PDL-1 checkpoint were assessed by immunohistochemistry. M1/M2 macrophage polarization was characterized by pSTAT1/CMAF staining...
2017: Oncoimmunology
https://www.readbyqxmd.com/read/28928836/preoperative-serum-macrophage-activated-biomarkers-soluble-mannose-receptor-smr-and-soluble-haemoglobin-scavenger-receptor-scd163-as-novel-markers-for-the-diagnosis-and-prognosis-of-gastric-cancer
#5
Dongbing Ding, Yang Song, Yao Yao, Songbai Zhang
Soluble mannose receptor (sMR) and soluble haemoglobin scavenger receptor (sCD163) are macrophage activation markers which have previously been demonstrated to be increased in patients with inflammation, auto-immunity and malignancies. To investigate the clinical diagnostic and prognostic significance of preoperative serum sMR and sCD163, the present study investigated 143 gastric cancer (GC) patients, 66 subjects with benign gastric disease and 59 healthy controls, using an ELISA assay. Preoperative serum levels of sMR and sCD163 ranged from 0...
September 2017: Oncology Letters
https://www.readbyqxmd.com/read/28928158/characterization-of-the-immune-microenvironment-in-hepatocellular-carcinoma-hcc
#6
Mark Yarchoan, Dongmei Xing, Lan Luan, Haiying Xu, Rajni Sharma, Aleksandra Popovic, Timothy M Pawlik, Amy K Kim, Qingfeng Zhu, Elizabeth M Jaffee, Janis Taube, Robert A Anders
PURPOSE: Hepatocellular carcinoma (HCC) often arises in the setting of chronic liver inflammation and may be responsive to novel immunotherapies. EXPERIMENTAL DESIGN: To characterize the immune microenvironment in HCC, immunohistochemical (IHC) staining was performed for CD8 positive T lymphocytes, PD-1 positive and LAG-3 positive lymphocytes, CD163 positive macrophages, and PD-L1 expression in tumor and liver background from 29 cases of resected HCC. RESULTS: Expression of CD8 was reduced in tumor and expression of CD163 was reduced at the tumor interface...
September 19, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28927974/infiltration-of-polarized-macrophages-associated-with-liver-fibrosis-in-infants-with-biliary-atresia
#7
Yifan Yang, Rui Dong, Chao Zheng, Shan Zheng, Gong Chen
BACKGROUND/PURPOSE: Macrophages exert critical functions in liver homeostasis and have been proposed as potential targets in combatting fibrosis. We aimed to evaluate polarized functional status of liver infiltrated macrophages in infants with biliary atresia (BA). METHODS: Immunohistochemical staining for CD68, CD163, and IRF5 was performed in 40 BA infants. Liver biopsies were scored for fibrosis and tested for association with clinical biochemical characteristics...
September 2, 2017: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/28923419/tumor-associated-macrophages-are-strongly-related-to-vascular-invasion-non-luminal-subtypes-and-interval-breast-cancer
#8
Tor A Klingen, Ying Chen, Hans Aas, Elisabeth Wik, Lars A Akslen
Tumor associated macrophages (TAM) resemble M2 macrophages, promote tumor invasion and show strong expression of CD163 in breast cancer. We here investigated the association between CD163 positive macrophages and vascular invasion, molecular subgroups, mode of detection, and patient outcome. We performed a population-based, retrospective study of invasive breast cancer from the Norwegian Breast Cancer Screening Programme in Vestfold County (2004-2009), including 200 screen-detected and 82 interval cancers. Immunohistochemically CD163 positive macrophages were counted in the most active areas (hot-spots) and dichotomized as high (upper quartile) and low counts...
September 15, 2017: Human Pathology
https://www.readbyqxmd.com/read/28921894/macrophage-area-content-and-phenotype-in-hepatic-and-adipose-tissue-in-patients-with-obesity-undergoing-roux-en-y-gastric-bypass
#9
Marianne D Kristensen, Michael T Lund, Merethe Hansen, Steen S Poulsen, Thorkil Ploug, Flemming Dela, Jørn W Helge, Clara Prats
OBJECTIVE: To investigate hepatic and adipose tissue macrophage content in subjects with obesity and the role of adipose tissue macrophages in weight loss-induced improved insulin sensitivity (IS). METHODS: A cross-sectional and a longitudinal study were combined to investigate the role of macrophages in subcutaneous (SAT) and visceral (VAT) adipose tissue and the liver in obesity-induced impaired IS and improvements with weight loss. Macrophage markers (CD68, CD163, and CD206) in SAT, VAT, and the liver from patients with obesity were investigated...
September 18, 2017: Obesity
https://www.readbyqxmd.com/read/28919508/pro-inflammatory-chitosan-poly-%C3%AE-glutamic-acid-nanoparticles-modulate-human-antigen-presenting-cells-phenotype-and-revert-their-pro-invasive-capacity
#10
Flávia Castro, Marta L Pinto, Andreia M Silva, Catarina L Pereira, Graciosa Q Teixeira, Maria Gomez-Lazaro, Susana G Santos, Mário A Barbosa, Raquel M Gonçalves, Maria J Oliveira
Anticancer immune responses depend on efficient presentation of tumor antigens and co-stimulatory signals provided by antigen-presenting cells (APCs). However, it is described that immature dendritic cells (DCs) and macrophages at the tumor site may have an immunosuppressive profile, which limits the activity of effector T cells and supports tumor progression. Therapeutic targeting of these innate immune cells, either aiming at their elimination or re-polarization towards an immunostimulatory profile, has been pointed as an attractive approach to control tumor progression...
September 14, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28913366/the-differential-contribution-of-the-innate-immune-system-to-a-good-pathological-response-in-the-breast-and-axillary-lymph-nodes-induced-by-neoadjuvant-chemotherapy-in-women-with-large-and-locally-advanced-breast-cancers
#11
Viriya Kaewkangsadan, Chandan Verma, Jennifer M Eremin, Gerard Cowley, Mohammad Ilyas, Sukchai Satthaporn, Oleg Eremin
The tumour microenvironment consists of malignant cells, stroma, and immune cells. The role of adaptive immunity in inducing a pathological complete response (pCR) in breast cancer with neoadjuvant chemotherapy (NAC) is well studied. The contribution of innate immunity, however, is poorly documented. Breast tumours and axillary lymph nodes (ALNs) from 33 women with large and locally advanced breast cancers (LLABCs) undergoing NAC were immunohistochemically assessed for tumour-infiltrating macrophages (TIMs: M1 and M2), neutrophils (TINs), and dendritic cells (TIDCs) using labelled antibodies and semiquantitative methods...
2017: Journal of Immunology Research
https://www.readbyqxmd.com/read/28903377/pd-l1-pd-1-expression-and-tumor-infiltrating-lymphocytes-in-conjunctival-melanoma
#12
Jinfeng Cao, Niels J Brouwer, Kate E Richards, Marina Marinkovic, Sjoerd van Duinen, Daan Hurkmans, Els M E Verdegaal, Ekaterina S Jordanova, Martine J Jager
Conjunctival melanoma (CM) is an infrequent but potentially lethal malignancy, with limited therapeutic options for metastases. Recent inhibitors of the interaction of programmed cell death protein 1 (PD-1) and its ligand PD-L1 are associated with good clinical responses in many malignancies. To investigate the therapeutic potential of targeting the PD-1/PD-L1 axis in CM, we analyzed the expression of PD-1 and PD-L1 and the density of various types of tumor-infiltrating lymphocytes (TILs) in primary CM (n = 27), using immunofluorescence staining...
August 15, 2017: Oncotarget
https://www.readbyqxmd.com/read/28902679/brief-report-peripheral-monocyte-macrophage-phenotypes-associated-with-the-evolution-of-cognitive-performance-in-hiv-infected-patients
#13
Massimiliano Fabbiani, Antonio Muscatello, Paolo Perseghin, Marco Bani, Arianna Incontri, Nicola Squillace, Giuseppe Lapadula, Andrea Gori, Alessandra Bandera
BACKGROUND: The contribution of monocyte activation in the development of HIV-associated neurocognitive disorders is not completely understood. This study aimed to explore the predictive value of peripheral monocyte/macrophage (M/M) phenotypes on the evolution of cognitive performance in a population of virologically suppressed HIV-infected patients. SETTING: Prospective, observational, longitudinal study. METHODS: HIV-1-infected patients with HIV-RNA <50copies/mL for >12 months underwent neuropsychological examination at baseline and after 1 year...
October 1, 2017: Journal of Acquired Immune Deficiency Syndromes: JAIDS
https://www.readbyqxmd.com/read/28899579/cxcl4-induced-macrophages-in-human-atherosclerosis
#14
Gabriele Domschke, Christian A Gleissner
Atherosclerosis is considered an inflammatory disease of the arterial wall. Monocytes and monocyte-derived cells (most often termed macrophages) play an essential role in the formation of atherosclerotic lesions, as they take up lipids leading to subsequent foam cell formation accompanied by release of pro-inflammatory cytokines. Similarly, platelets have been discovered to represent an important cell type mediating inflammatory and immune processes in atherogenesis, mainly by secreting chemokines, which are stored in the platelets' alpha granules, upon platelet activation...
September 9, 2017: Cytokine
https://www.readbyqxmd.com/read/28895865/long-term-culture-and-differentiation-of-porcine-red-bone-marrow-hematopoietic-cells-co-cultured-with-immortalized-mesenchymal-cells
#15
Abubakar Garba, Delphine D Acar, Inge D M Roukaerts, Lowiese M B Desmarets, Bert Devriendt, Hans J Nauwynck
Mesenchymal cells are multipotent stromal cells with self-renewal, differentiation and immunomodulatory capabilities. We aimed to develop a co-culture model for differentiating hematopoietic cells on top of immortalized mesenchymal cells for studying interactions between hematopoietic and mesenchymal cells, useful for adequately exploring the therapeutic potential of mesenchymal cells. In this study, we investigated the survival, proliferation and differentiation of porcine red bone marrow hematopoietic cells co-cultured with immortalized porcine bone marrow mesenchymal cells for a period of five weeks...
September 2017: Veterinary Immunology and Immunopathology
https://www.readbyqxmd.com/read/28886055/comparative-analysis-of-the-oral-mucosae-from-rodents-and-non-rodents-application-to-the-nonclinical-evaluation-of-sublingual-immunotherapy-products
#16
Catherine Thirion-Delalande, Frédéric Gervais, Cécile Fisch, Jean Cuiné, Véronique Baron-Bodo, Philippe Moingeon, Laurent Mascarell
BACKGROUND: A comparative characterization of the oral mucosa in various animals is needed to identify the best animal model(s) for nonclinical evaluation of sublingual immunotherapy products. With this aim, we studied the histological characteristics and immune cell infiltrates of oral mucosae from common animal species. METHODS: Three oral regions (i.e. ventral surface of the tongue, mouth floor and cheek) obtained from eight animal species, including rodents (i...
2017: PloS One
https://www.readbyqxmd.com/read/28884821/associations-between-intratumoral-and-peritumoral-m2-macrophage-counts-and-cervical-squamous-cell-carcinoma-invasion-patterns
#17
Yuan Li, Gaosheng Huang, Shaohua Zhang
OBJECTIVE: To study the correlation between M2 tumor-associated macrophages (TAMs) and invasion patterns in cervical squamous cell carcinoma (SCC) tissues. METHODS: In the present observational study, two commercial SCC tissue microarrays were evaluated by immunohistochemical analysis between January 1, 2016, and December 31, 2016. CD163-positive cells in a cervical SCC tissue microarray were identified. Tissue samples were stratified into groups based on a pushing border pattern (PBP), a diffuse infiltration pattern (DIP), or non-tumorous tissues included as a control group; M2 TAM numbers and distributions were compared...
September 8, 2017: International Journal of Gynaecology and Obstetrics
https://www.readbyqxmd.com/read/28882699/neutrophil-infiltration-is-a-favorable-prognostic-factor-in-early-stages-of-colon-cancer
#18
Maria L Wikberg, Agnes Ling, Xingru Li, Åke Öberg, Sofia Edin, Richard Palmqvist
The tumor immune response has been proven critical to prognosis in colorectal cancer (CRC), but studies on the prognostic role of neutrophil infiltration have shown contradictory results. The aim of this study was to elucidate the prognostic role of infiltrating neutrophils at different intratumoral subsites and in different molecular subgroups of CRC. The relations between neutrophil infiltration and infiltration of other immune cells (T-cell and macrophage subsets) were also addressed. Expression of the neutrophil marker CD66b was assessed by immunohistochemistry in 448 archival human tumor tissue samples from patients surgically resected for CRC...
September 4, 2017: Human Pathology
https://www.readbyqxmd.com/read/28877959/prognostic-role-of-tumour-associated-macrophages-and-regulatory-t-cells-in-ebv-positive-and-ebv-negative-nasopharyngeal-carcinoma
#19
Marc L Ooft, Jolique A van Ipenburg, Maxime E Sanders, Mariette Kranendonk, Ingrid Hofland, Remco de Bree, Senada Koljenović, Stefan M Willems
AIMS: Tumour-associated macrophages (TAMs) and regulatory T cells (Tregs) form a special niche supporting tumour progression, and both correlate with worse survival in head and neck cancers. However, the prognostic role of TAM and Tregs in nasopharyngeal carcinoma (NPC) is still unknown. Therefore, we determined differences in TAMs and Tregs in different NPC subtypes, and their prognostic significance. METHODS: Tissue of 91 NPCs was assessed for TAMs and Tregs by determination of CD68, CD163, CD206 and FOXP3 expression in the tumour microenvironment...
September 6, 2017: Journal of Clinical Pathology
https://www.readbyqxmd.com/read/28872671/wnt7a-induces-a-unique-phenotype-of-monocyte-derived-macrophages-with-lower-phagocytic-capacity-and-differential-expression-of-pro-and-anti-inflammatory-cytokines
#20
Jennillee Wallace, Victoria Lutgen, Sreedevi Avasarala, Brad St Croix, Robert A Winn, Lena Al-Harthi
The variation of macrophage functions suggests the involvement of multiple signaling pathways in fine tuning their differentiation. Macrophages that originate from monocytes in the blood migrate to tissue in response to homeostatic or "danger" signals and undergo substantial morphological and functional modifications to meet the needs of the dominant signals in the microenvironment. Wnts are secreted glycoproteins that play a significant role in organ and cell differentiation, yet their impact on monocyte differentiation is not clear...
September 5, 2017: Immunology
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