期刊
INTERNATIONAL IMMUNOLOGY
卷 16, 期 11, 页码 1595-1604出版社
OXFORD UNIV PRESS
DOI: 10.1093/intimm/dxh160
关键词
SLE; dendritic cells; monocytes; toll-like receptors
类别
Systemic lupus erythematosus (SLE) represents an autoimmune disease for which alterations of T cells, B cells as well as various antigen-presenting cell (APC) populations have been described. In order to better define APC-associated deficiencies, we analyzed morphologic, phenotypic and functional characteristics of in vitro-generated monocyte-derived dendritic cells (MoDC) from SLE patients as compared with healthy controls. Analysis of MoDC at different stages of maturation revealed substantial phenotypic and functional defects of MoDC from SLE patients as compared with healthy controls. In particular, we observed a significantly reduced up-regulation of MHC class II molecules on MoDC upon activation which correlated with disease activity scores and functional deficiencies in mixed lymphocyte reaction experiments. Our data imply a crucial role of APC in the immunological imbalance in SLE for foreign and self-antigen reactivity.
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