期刊论文详细信息
Journal of Leukocyte Biology | |
Adenosine deaminase potentiates the generation of effector, memory, and regulatory CD4+ T cells | |
José M. Gatell–1  Carme Lluis and4  Felipe Garcia–1  Núria Climent–2  Rodrigo Pacheco3  Isaac Naval-Macabuhay4  Josefa Mallol4  VÃctor Casanova4  Rafael Franco4  José M. Martinez-Navio4  Teresa Gallart–2  | |
[1]–AIDS Unit, Hospital ClÃnic, Institut d²Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), and HIVACAT, Hospital ClÃnic, Faculty of Medicine, University of Barcelona, Spain | |
[2] | |
[3]Services of Immunology and Infectious Diseases & –AIDS Unit, Hospital ClÃnic, Institut d²Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), | |
[4] Fundación Ciencia para la Vida and Instituto Milenio de BiologÃa Fundamental y Aplicada, Santiago, Chile | |
[5] and Universidad San SebastiÃn, Chile | |
[6]Department of Biochemistry and Molecular Biology, Faculty of Biology, Services of Immunology and Infectious Diseases & | |
关键词: dendritic cells; CD26; T cell activation; Th1; CD45RA/CD45RO; Foxp3; | |
DOI : 10.1189/jlb.1009696 | |
学科分类:生理学 | |
来源: Federation of American Societies for Experimental Biology | |
【 摘 要 】
By interacting with CD26 on the CD4+ T cell surface and with the AdoR A2B on the DC surface, ADA triggers a costimulatory signal for human T cells. The aim of this study was to know whether ADA-mediated costimulation plays a role in the differentiation of T cells. The results show that irrespective of its enzymatic activity and dependent on TNF-α, IFN-γ, and IL-6 action, ADA enhanced the differentiation of CD4+CD45RA+CD45RO– naïve T cells toward CD4+CD25+CD45RO+ Teffs and CD4+CD45RA–CD45RO+ memory T cells. Furthermore, ADA potentiated generation of CD4+CD25highFoxp3+ Tregs by a mechanism that seems to be mainly dependent on the enzymatic activity of ADA. Interestingly, an ADA-mediated increase on Teff, memory T cell, and Treg generation occurred, not only in cocultures from healthy individuals but also from HIV-infected patients. These data suggest that ADA is a relevant modulator of CD4+ T cell differentiation, even in cells from immunologically compromised individuals.【 授权许可】
Unknown
【 预 览 】
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RO201912010182904ZK.pdf | 43KB | download |