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2015 ; 17
(ä): 293
Nephropedia Template TP
Winter O
; Musiol S
; Schablowsky M
; Cheng Q
; Khodadadi L
; Hiepe F
Arthritis Res Ther
2015[Oct]; 17
(ä): 293
PMID26490351
show ga
INTRODUCTION: While protective plasma cells (PCs) are an important part of the
individual's immune defense, autoreactive plasma cells such as dsDNA-specific
plasma cells contribute to the pathogenesis of autoimmune diseases like systemic
lupus erythematosus (SLE). However, the research on dsDNA-specific plasma cells
was restricted to the ELISpot technique, with its limitations, as no other
attempt for identification of dsDNA-reactive plasma cells had been successful.
METHODS: With improved fluorochrome labeling of dsDNA, removal of DNA aggregates,
and enhanced blocking of unspecific binding, we were able to specifically detect
dsDNA-reactive plasma cells by immunofluorescence microscopy. RESULTS: Via this
novel technique we were able to distinguish short-lived (SLPCs) and long-lived
(LLPCs) autoreactive plasma cells, discriminate dsDNA-specific plasma cells
according to their immunoglobulin class (IgG, IgM, and IgA) and investigate
autoreactive (dsDNA) and vaccine-induced ovalbumin (Ova) plasma cells in
parallel. CONCLUSIONS: The detection of autoreactive dsDNA-specific plasma cells
via immunofluorescence microscopy allows specific studies on pathogenic and
protective plasma cell subsets and their niches, detailed evaluation of
therapeutic treatments and therefore offers new possibilities for basic and
clinical research.