期刊
CLINICAL IMMUNOLOGY
卷 146, 期 1, 页码 1-9出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.clim.2012.10.004
关键词
Autoimmunity; Animal models; Apoptosis; Molecular immunology
类别
资金
- VA Merit Review grant
- Kirkland Scholar Program (Mary Kirkland Center for Lupus Research)
- NIH [5U19-AI-056363]
- Alliance for Lupus Research
Systemic lupus erythematosus is a systemic inflammatory disease characterized by antibodies to nuclear molecules in association with immune complex deposition. As shown previously, microparticles (MPs), which are small membrane-bound vesicles released from dying and activated cells, contain nucleic acids and can form immune complexes found in patient blood. To assess the role of MPs in murine lupus, we used flow cytometry to measure the presence of MPs with bound IgG in the blood of MRL-lpr/lpr and NZB/W mice. These studies showed much higher numbers of MPs with bound IgG in the blood of MRL lpr/lpr compared to NZB/W mice. Furthermore, these studies showed that antibodies from MRL-lpr/Ipr mice bound better to MPs from apoptotic cells than those from NZB/W mice. Together, these studies indicate important differences in the serological features of the two strains as reflected by the capacity of antibodies to bind to MPs. (C) 2012 Elsevier Inc. All rights reserved.
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