نتایج جستجو برای: cd200

تعداد نتایج: 528  

Journal: :Turkish journal of haematology : official journal of Turkish Society of Haematology 2011
Ayşe Pınar Erçetin Safiye Aktaş Özden Pişkin Halil Ateş Zeynep Filiz Zadeoğluları Nur Hilal Turgut Mehmet Ali Özcan

OBJECTIVE Multiple myeloma (MM) is characterized by malignant proliferation of plasmocytes and their precursors. T regulatory cells (Tregs) have a role in immunosuppression and control of autoimmunity, and are currently an important topic in the study of immune response to tumor cells. The correlation between Tregs and autologous peripheral blood stem cell transplantation (APBSCT) in MM has not...

2012
Guruswamy Karnam Tomasz P. Rygiel Matthijs Raaben Guy C. M. Grinwis Frank E. Coenjaerts Maaike E. Ressing Peter J. M. Rottier Cornelis A. M. de Haan Linde Meyaard

Immunological checkpoints, such as the inhibitory CD200 receptor (CD200R), play a dual role in balancing the immune system during microbial infection. On the one hand these inhibitory signals prevent excessive immune mediated pathology but on the other hand they may impair clearance of the pathogen. We studied the influence of the inhibitory CD200-CD200R axis on clearance and pathology in two d...

2016
Maryam Mousavinezhad-Moghaddam Abbas Ali Amin Houshang Rafatpanah Seyed Abdol Rahim Rezaee

The physiologic function of the immune system is defense against infectious microbes and internal tumour cells, Therefore, need to have precise modulatory mechanisms to maintain the body homeostasis. The mammalian cellular CD200 (OX2)/CD200R interaction is one of such modulatory mechanisms in which myeloid and lymphoid cells are regulated. CD200 and CD200R molecules are membrane proteins that t...

Journal: :Haematologica 2015
Farzaneh Ghazavi Emmanuelle Clappier Tim Lammens Stefan Suciu Aurélie Caye Samira Zegrari Marleen Bakkus Nathalie Grardel Yves Benoit Yves Bertrand Odile Minckes Vitor Costa Alina Ferster Françoise Mazingue Geneviève Plat Emmanuel Plouvier Marilyne Poirée Anne Uyttebroeck Jutte van der Werff-Ten Bosch Karima Yakouben Hetty Helsmoortel Magali Meul Nadine Van Roy Jan Philippé Frank Speleman Hélène Cavé Pieter Van Vlierberghe Barbara De Moerloose

DNA copy number analysis has been instrumental for the identification of genetic alterations in B-cell precursor acute lymphoblastic leukemia. Notably, some of these genetic defects have been associated with poor treatment outcome and might be relevant for future risk stratification. In this study, we characterized recurrent deletions of CD200 and BTLA genes, mediated by recombination-activatin...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2006
John R McWhirter Anke Kretz-Rommel Alan Saven Toshiaki Maruyama Kathleen N Potter C Ian Mockridge E Prenn Ravey Fenghua Qin Katherine S Bowdish

We searched for cell-surface-associated proteins overexpressed on B cell chronic lymphocytic leukemia (CLL) to use as therapeutic antibody targets. Antibodies binding the immunosuppressive molecule CD200 were identified by cell panning of an antibody phage display library derived from rabbits immunized with primary CLL cells. B cells from 87 CLL patients exhibited 1.6- to 5.4-fold cell-surface ...

2012
Fatemeh Talebian Xue-Feng Bai

CD200 is a cell surface glycoprotein that has been implicated in a variety of human cancer cells and has been thought to play a pro-tumor role. However, in our recent study we have revealed that CD200 on cancer cells inhibits tumor formation and metastasis through inhibition of myeloid cells.

2015
Siddappa N. Byrareddy Dawn Little Ann E. Mayne Francois Villinger Aftab A. Ansari Pierre Roques

Lectin-like molecules and their receptors are cell surface molecules that have been shown to play a role in either facilitating infection or serving as transporters of HIV/SIV in vivo. The role of these lectin-like molecules in the pathogenesis of HIV/SIV infection continues to be defined. In efforts to gain further insight on the potential role of these lectin-like molecules, our laboratory ge...

2017
Mohammad Fayyad-Kazan Hussein Fayyad-Kazan Makram Merimi Nathalie Meuleman Dominique Bron Laurence Lagneaux Mehdi Najar

In this Data in Brief, we have provided data describing the secretion profile of two main immunoregulatory proteins, heme oxygenase-1 (HO-1) and CD200, from bone marrow (BM), Wharton׳s Jelly (WJ) or adipose tissue (AT) mesenchymal stromal cells (MSCs) being cultivated either in the absence or presence of activated T-cells. Whilst HO-1 is a stress-responsive enzyme displaying diverse cytoprotect...

Journal: :Bone 2014
O Kos R L Hughson D A Hart G Clément P Frings-Meuthen D Linnarsson W H Paloski J Rittweger F Wuyts J Zange R M Gorczynski

CD200 is a transmembrane protein that belongs to the immunoglobulin family of proteins and is ubiquitously expressed on a variety of cell types. Upon interaction with its receptors (CD200Rs) expressed on myeloid-derived cells and T lymphocytes, an immunoregulatory signal is delivered to receptor-expressing cells. Previous studies have implicated a role for CD200:CD200R in the regulation of the ...

2015
Mohamed F. Elshal Alia M. Aldahlawi Omar I. Saadah J. Philip McCoy Kamal D. Moudgil

Loss of tolerance of the adaptive immune system towards indigenous flora contributes to the development of inflammatory bowel diseases (IBD). Defects in dendritic cell (DC)-mediated innate and adoptive immune responses are conceivable. The aim of this study was to investigate the expression of the inhibitory molecules CD200R1 and their ligand CD200 on DCs, to clarify the role of the DCs in the ...

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