Open AccessThe association between EAE development in mice and the production of autoantibodies and abzymes after immunization of mice with different antigens
Author(s) -
Aulova Kseniya S.,
Urusov Andrey A.,
Sedykh Sergey E.,
Toporkova Ludmila B.,
Lopatnikova Julia A.,
Buneva Valenti.,
Sennikov Sergei V.,
Budde Thomas,
Meuth Sven G.,
Popova Nelly A.,
Orlovskaya Irina A.,
Nevinsky Georgy A.
Publication year - 2021
Publication title -
journal of cellular and molecular medicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.44
H-Index - 130
eISSN - 1582-4934
pISSN - 1582-1838
DOI - 10.1111/jcmm.16183
Subject(s) - antigen , histone , experimental autoimmune encephalomyelitis , autoantibody , myelin basic protein , immunology , antibody , immunization , chemistry , microbiology and biotechnology , biology , dna , immune system , myelin , biochemistry , central nervous system , endocrinology
We have previously shown that immunization of C57BL/6 mice, prone to spontaneous development of experimental autoimmune encephalomyelitis (EAE), with three antigens (MOG 35‐55 , DNA‐histone complex or DNA‐methylated BSA complex), alters the differentiation profiles of bone marrow haematopoietic stem cells (HSCs). These are associated with the production of autoantibodies (auto‐Abs) against these antigens and the formation of abzymes hydrolysing DNA, MOG, myelin basic protein (MBP) and histones. Immunization of mice with antigens accelerates the development of EAE. This work is the first to analyse the ratio of auto‐Abs without and with catalytic activities at different stages of EAE development (onset, acute and remission phases) after immunization of mice with the three specific antigens. Prior to immunization and during spontaneous in‐time development of EAE, the concentration of auto‐Abs against MBP, MOG, histones and DNA and activities of IgG antibodies in the hydrolysis of substrates increased in parallel; correlation coefficients = +0.69‐0.94. After immunization with MOG, DNA‐histone complex or DNA‐met‐BSA complex, both positive (from +0.13 to +0.98) and negative correlations (from −0.09 to −0.69) were found between these values. Our study is the first showing that depending on the antigen, the relative amount of harmful auto‐Abs without and abzymes with low or high catalytic activities may be produced only at onset and in acute or remission phases of EAE. The antigen governs the EAE development rate, whereby the ratio of auto‐Abs without catalytic activity and with enzymatic activities of harmful abzymes hydrolysing MBP, MOG, histones and DNA varies strongly between different disease phases.