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https://www.readbyqxmd.com/read/29207601/dissecting-the-mechanisms-involved-in-anti-human-t-lymphocyte-immunoglobulin-atg-induced-tolerance-in-the-setting-of-allogeneic-stem-cell-transplantation-potential-implications-for-graft-versus-host-disease
#1
Katia Beider, David Naor, Valeria Voevoda, Olga Ostrovsky, Hanna Bitner, Evgenia Rosenberg, Nira Varda-Bloom, Victoria Marcu-Malina, Jonathan Canaani, Ivetta Danilesko, Avichai Shimoni, Arnon Nagler
Polyclonal anti-human thymocyte globulins (ATG) have been recently shown to significantly reduce the incidence of graft versus host disease (GVHD) post allogeneic stem cell transplantation (HSCT) from both sibling and unrelated donors. Induction of regulatory T cells has been suggested as one of the possible mechanisms. The aim of current study was to further characterize the T cell populations induced by ATG treatment and to delineate the mechanisms involved in ATG-induced tolerance. Phenotypic characterization revealed a significant increase in the expression of FoxP3, GITR, CD95, PD-1 and ICOS as well as the complement inhibitory molecules CD55, CD58 and CD59 on CD4+CD25+ T cells upon ATG treatment...
October 31, 2017: Oncotarget
https://www.readbyqxmd.com/read/29176322/differential-expression-profiles-of-the-transcriptome-in-breast-cancer-cell-lines-revealed-by-next-generation-sequencing
#2
Yu Shi, Peng Ye, Xinghua Long
BACKGROUND/AIMS: As MCF-7 and MDA-MB-231 cells are the typical cell lines of two clinical breast tumour subtypes, the aim of the present study was to elucidate the transcriptome differences between MCF-7 and MDA-MB-231 breast cancer cell lines. METHODS: The mRNA, miRNA (MicroRNA) and lncRNA (Long non-coding RNA) expression profiles were examined using NGS (next generation sequencing) instrument Illumina HiSeq-2500. GO (Gene Ontology) and KEGG (Kyoto Encyclopedia of Genes and Genomes) pathway analyses were performed to identify the biological functions of differentially expressed coding RNAs...
November 24, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29158510/construction-of-developmental-lineage-relationships-in-the-mouse-mammary-gland-by-single-cell-rna-profiling
#3
Bhupinder Pal, Yunshun Chen, François Vaillant, Paul Jamieson, Lavinia Gordon, Anne C Rios, Stephen Wilcox, Naiyang Fu, Kevin He Liu, Felicity C Jackling, Melissa J Davis, Geoffrey J Lindeman, Gordon K Smyth, Jane E Visvader
The mammary epithelium comprises two primary cellular lineages, but the degree of heterogeneity within these compartments and their lineage relationships during development remain an open question. Here we report single-cell RNA profiling of mouse mammary epithelial cells spanning four developmental stages in the post-natal gland. Notably, the epithelium undergoes a large-scale shift in gene expression from a relatively homogeneous basal-like program in pre-puberty to distinct lineage-restricted programs in puberty...
November 20, 2017: Nature Communications
https://www.readbyqxmd.com/read/29143318/calcineurin-inhibitor-induced-complement-system-activation-via-erk1-2-signalling-is-inhibited-by-socs-3-in-human-renal-tubule-cells
#4
Beatrix Loeschenberger, Lea Niess, Reinhard Würzner, Hubert Schwelberger, Iris E Eder, Martin Puhr, Julia Guenther, Jakob Troppmair, Michael Rudnicki, Hannes Neuwirt
One factor that significantly contributes to renal allograft loss is chronic calcineurin inhibitor (CNI) nephrotoxicity (CIN). Among other factors, the complement (C-) system has been proposed to be involved CIN development. Hence, we investigated the impact of CNIs on intracellular signalling and the effects on the C-system in human renal tubule cells. In a qPCR array, CNI treatment upregulated C-factors and downregulated SOCS-3 and the complement inhibitors CD46 and CD55. Additionally, ERK1/-2 was required for these regulations...
November 15, 2017: European Journal of Immunology
https://www.readbyqxmd.com/read/29119571/targeted-exome-sequencing-defines-novel-and-rare-variants-in-complex-blood-group-serology-cases-for-a-red-blood-cell-reference-laboratory-setting
#5
Elizna M Schoeman, Eileen V Roulis, Yew-Wah Liew, Jacqueline R Martin, Tanya Powley, Brett Wilson, Glenda M Millard, Eunike C McGowan, Genghis H Lopez, Helen O'Brien, Jennifer A Condon, Robert L Flower, Catherine A Hyland
BACKGROUND: We previously demonstrated that targeted exome sequencing accurately defined blood group genotypes for reference panel samples characterized by serology and single-nucleotide polymorphism (SNP) genotyping. Here we investigate the application of this approach to resolve problematic serology and SNP-typing cases. STUDY DESIGN AND METHODS: The TruSight One sequencing panel and MiSeq platform was used for sequencing. CLC Genomics Workbench software was used for data analysis of the blood group genes implicated in the serology and SNP-typing problem...
November 8, 2017: Transfusion
https://www.readbyqxmd.com/read/29039580/combination-of-oncolytic-adenovirus-and-luteolin-exerts-synergistic-antitumor-effects-in-colorectal-cancer-cells-and-a-mouse-model
#6
Boduan Xiao, Yun Qin, Chang Ying, Buyun Ma, Binrong Wang, Fei Long, Ruwei Wang, Ling Fang, Yigang Wang
In recent years, oncolytic viruses have attracted increasing interest due to their potent antitumor effects. Luteolin, a natural product, has additionally been observed to exhibit various pharmacological antitumor activities. Previously, a novel dual‑targeting oncolytic adenovirus, complement decay‑accelerating factor (CD55)‑tumor necrosis factor ligand superfamily member 10 (TRAIL), was constructed, which exhibited significant growth inhibitory effects in various types of tumor cell. The present study investigated whether the combination of luteolin and CD55‑TRAIL was able to exert a synergistic antitumor effect in colorectal carcinoma (CRC) cells...
December 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29037309/correlation-between-cellular-expression-of-complement-regulatory-proteins-with-depletion-and-repopulation-of-b-lymphocytes-in-peripheral-blood-of-patients-with-rheumatoid-arthritis-treated-with-rituximab
#7
Daniela Viecceli, Mariana Pires Garcia, Laiana Schneider, Ana Paula Alegretti, Cristiano Kohler Silva, André Lucas Ribeiro, Claiton Viegas Brenol, Ricardo Machado Xavier
OBJECTIVES: To correlate the basal expression of complement regulatory proteins (CRPs) CD55, CD59, CD35, and CD46 in B-lymphocytes from the peripheral blood of a cohort of 10 patients with rheumatoid arthritis (RA) initiating treatment with rituximab (RTX) with depletion and time repopulation of such cells. METHODS: Ten patients with RA received two infusions of 1g of RTX with an interval of 14 days. Immunophenotypic analysis for the detection of CD55, CD59, CD35, and CD46 on B-lymphocytes was carried out immediately before the first infusion...
September 2017: Revista Brasileira de Reumatologia
https://www.readbyqxmd.com/read/29020582/cd55-deficiency-and-protein-losing-enteropathy
#8
LETTER
Alina Kurolap, Orly Eshach-Adiv, Hagit N Baris
New England Journal of Medicine, Volume 377, Issue 15, Page 1499-1500, October 2017.
October 12, 2017: New England Journal of Medicine
https://www.readbyqxmd.com/read/29020581/cd55-deficiency-and-protein-losing-enteropathy
#9
LETTER
Ahmet Ozen, William A Comrie, Michael J Lenardo
No abstract text is available yet for this article.
October 12, 2017: New England Journal of Medicine
https://www.readbyqxmd.com/read/28977405/genome-scale-detection-of-positive-selection-in-nine-primates-predicts-human-virus-evolutionary-conflicts
#10
Robin van der Lee, Laurens Wiel, Teunis J P van Dam, Martijn A Huynen
Hotspots of rapid genome evolution hold clues about human adaptation. We present a comparative analysis of nine whole-genome sequenced primates to identify high-confidence targets of positive selection. We find strong statistical evidence for positive selection in 331 protein-coding genes (3%), pinpointing 934 adaptively evolving codons (0.014%). Our new procedure is stringent and reveals substantial artefacts (20% of initial predictions) that have inflated previous estimates. The final 331 positively selected genes (PSG) are strongly enriched for innate and adaptive immunity, secreted and cell membrane proteins (e...
October 13, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/28963754/diminished-presentation-of-complement-regulatory-protein-cd55-on-red-blood-cells-from-patients-with-hereditary-haemolytic-anaemias
#11
A Loniewska-Lwowska, K Koza, E Mendek-Czajkowska, P Wieszczy, A Adamowicz-Salach, K Branicka, I Witos, A Sapala-Smoczynska, T Jackowska, J Fabijanska-Mitek
INTRODUCTION: Hereditary haemolytic anaemias (HHA) encompass a heterogeneous group of anaemias characterized by decreased red blood cell survival. The aim of this study was to evaluate the status of red blood cell (RBC) surface molecules known or previously proposed to participate in preventing premature RBC clearance, analysing erythrocytes from patients with two types of HHA: hereditary spherocytosis (HS) and microcytosis. MATERIAL/METHODS: Relative binding of five monoclonal antibodies (mAbs), anti-CD55, anti-CD59, anti-CD44, anti-CD47 and anti-CD58, was evaluated in erythrocytes of patients with HS and hereditary microcytosis, using flow cytometry...
September 30, 2017: International Journal of Laboratory Hematology
https://www.readbyqxmd.com/read/28957817/altered-expression-pattern-of-cd55-and-cd59-on-red-blood-cells-in-anemia-of-chronic-kidney-disease
#12
Lama Al Faris, Salah Al-Humood, Fatma Behbehani, Husam Sallam
OBJECTIVE: To investigate the expression pattern of CD55 and CD59 on red blood cells (RBCs) in anemic chronic kidney disease (CKD) patients, and factors that might infleunce their expression. SUBJECTS AND METHODS: Nighty one adult anemic CKD patients and 80 healthy controls (HC) were enrolled. Anemic CKD patients were divided into 3 subgroups based on receiving erythropoietin (EPO) and renal replacement therapies (RRT). Flow cytometric analysis of CD55 and CD59 expression was performed on RBCs from blood samples obtained from CKD patients and HC...
September 28, 2017: Medical Principles and Practice: International Journal of the Kuwait University, Health Science Centre
https://www.readbyqxmd.com/read/28944962/hpv-e6-protein-enriches-the-cd55-population-in-cervical-cancer-cells-promoting-radio-resistance-and-cancer-aggressiveness
#13
Thomas Ho-Yin Leung, Hermit Wai-Man Tang, Michelle Kwan-Yee Siu, David Wai Chan, Karen Kar-Loen Chan, Annie Nga-Yin Cheung, Hextan Yuen-Sheung Ngan
Accumulating evidence indicates that the human papilloma virus (HPV) E6 protein plays a crucial role in the development of cervical cancer. Sub-populations of cells that reside within tumors are responsible for tumor resistance to cancer therapy and recurrence. However, the identity of such cells residing in cervical cancer and their relationship with the HPV-E6 protein have not been identified. Here, we isolated sphere-forming cells, which exhibited self-renewal ability, from primary cervical tumors. Gene expression profiling revealed that CD55 was upregulated in primary cervical cancer sphere cells...
September 25, 2017: Journal of Pathology
https://www.readbyqxmd.com/read/28943429/shear-stress-mediated-changes-in-the-expression-of-complement-regulatory-protein-cd59-on-human-endothelial-progenitor-cells-by-ecm-integrin%C3%AE-v%C3%AE-3-f-actin-pathway-in%C3%A2-vitro
#14
Xiaodong Cui, Xiaoyun Zhang, Hongnan Bu, Na Liu, Hong Li, Xiumei Guan, Hong Yan, Yuzhen Wang, Hua Zhang, Yuzhen Ding, Min Cheng
Membrane regulatory proteins, such as CD46, CD55, and CD59, prevent excess complement activation and to protect cells from damage. Previous investigations confirmed that shear stress in the physiological range was more favorable for endothelial progenitor cells (EPCs) to repair injured vascular endothelial cells and operates mainly in atheroprotective actions. However, detailed events that contribute to shear stress-induced protection in EPCs, particularly the mechanisms of signal transduction, remain poorly understood...
December 9, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28940198/complement-regulatory-proteins-in-kidneys-of-patients-with-anti-neutrophil-cytoplasmic-antibody-anca-associated-vasculitis
#15
L Cheng, S-J Gou, H-Y Qiu, L Ma, P Fu
The complement system activation is involved in the development of anti-neutrophil cytoplasmic antibody-associated vasculitis (AAV). The study aimed to investigate the expression of complement regulatory proteins (CRPs) CD46, CD55 and CD59 in kidneys of 51 AVV patients. The expression of CD46, CD55 and CD59 in kidneys was detected by immunohistochemistry and double immunofluorescence staining. The immunohistochemical examination revealed that expression of the three CRPs could be detected in the glomeruli and tubules of both AAV patients and normal controls...
September 23, 2017: Clinical and Experimental Immunology
https://www.readbyqxmd.com/read/28928834/cd55-and-cd59-expression-protects-her2-overexpressing-breast-cancer-cells-from-trastuzumab-induced-complement-dependent-cytotoxicity
#16
Yu Wang, Ya-Jun Yang, Zhu Wang, Juan Liao, Mei Liu, Xiao-Rong Zhong, Hong Zheng, Yan-Ping Wang
A large proportion (40-60%) of patients with human epidermal growth factor receptor 2 (HER2)-overexpressing breast cancer do not benefit from trastuzumab treatment, potentially due to the lack of complement-dependent cytotoxicity (CDC) activation. In the present study, the effect of complement decay-accelerating factor (CD55) and CD59 glycoprotein precursor (CD59) expression on trastuzumab-induced CDC in HER2-positive breast cancer cell lines was investigated. The CD55 and CD59-overexpressing and HER2-positive cell lines SK-BR-3 and BT474 were selected for subsequent experiments...
September 2017: Oncology Letters
https://www.readbyqxmd.com/read/28895865/long-term-culture-and-differentiation-of-porcine-red-bone-marrow-hematopoietic-cells-co-cultured-with-immortalized-mesenchymal-cells
#17
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/28886871/daf-in-diabetic-patients-is-subject-to-glycation-inactivation-at-its-active-site-residues
#18
Rudolf Flückiger, Enzo Cocuzzi, Ram H Nagaraj, Menachem Shoham, Timothy S Kern, M Edward Medof
Decay accelerating factor (DAF or CD55) is a cell associated C3 and C5 convertase regulator originally described in terms of protection of self-cells from systemic complement but now known to modulate adaptive T cell responses. It is expressed on all cell types. We investigated whether nonenzymatic glycation could impair its function and potentially be relevant to complications of diabetes mellitus and other conditions that result in nonenzymatic glycation including cancer, Alzheimer's disease, and aging. Immunoblots of affinity-purified DAF from erythrocytes of patients with diabetes showed pentosidine, glyoxal-AGEs, carboxymethyllysine, and argpyrimidine...
September 5, 2017: Molecular Immunology
https://www.readbyqxmd.com/read/28838952/cd55-regulates-self-renewal-and-cisplatin-resistance-in-endometrioid-tumors
#19
Caner Saygin, Andrew Wiechert, Vinay S Rao, Ravi Alluri, Elizabeth Connor, Praveena S Thiagarajan, James S Hale, Yan Li, Anastasia Chumakova, Awad Jarrar, Yvonne Parker, Daniel J Lindner, Anil Belur Nagaraj, J Julie Kim, Analisa DiFeo, Fadi W Abdul-Karim, Chad Michener, Peter G Rose, Robert DeBernardo, Haider Mahdi, Keith R McCrae, Feng Lin, Justin D Lathia, Ofer Reizes
Effective targeting of cancer stem cells (CSCs) requires neutralization of self-renewal and chemoresistance, but these phenotypes are often regulated by distinct molecular mechanisms. Here we report the ability to target both of these phenotypes via CD55, an intrinsic cell surface complement inhibitor, which was identified in a comparative analysis between CSCs and non-CSCs in endometrioid cancer models. In this context, CD55 functions in a complement-independent manner and required lipid raft localization for CSC maintenance and cisplatin resistance...
September 4, 2017: Journal of Experimental Medicine
https://www.readbyqxmd.com/read/28793332/stromal-cell-markers-are-differentially-expressed-in-the-synovial-tissue-of-patients-with-early-arthritis
#20
Ivy Y Choi, Olga N Karpus, Jason D Turner, Debbie Hardie, Jennifer L Marshall, Maria J H de Hair, Karen I Maijer, Paul P Tak, Karim Raza, Jörg Hamann, Christopher D Buckley, Danielle M Gerlag, Andrew Filer
INTRODUCTION: Previous studies have shown increased expression of stromal markers in synovial tissue (ST) of patients with established rheumatoid arthritis (RA). Here, ST expression of stromal markers in early arthritis in relationship to diagnosis and prognostic outcome was studied. METHODS: ST from 56 patients included in two different early arthritis cohorts and 7 non-inflammatory controls was analysed using immunofluorescence to detect stromal markers CD55, CD248, fibroblast activation protein (FAP) and podoplanin...
2017: PloS One
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