Статья

Changes in cell differentiation and proliferation lead to production of abzymes in EAE mice treated with DNA–Histone complexes

K. Aulova, L. Toporkova, J. Lopatnikova, A. Alshevskaya, S. Sedykh, V. Buneva, T. Budde, S. Meuth, N. Popova, I. Orlovskaya, G. Nevinsky,
2021

Experimental autoimmune encephalomyelitis (EAE)-prone C57BL/6 mice are used as a model of human multiple sclerosis. We immunize mice with myelin oligodendrocyte glycoprotein (MOG), DNA–histone and DNA-methylated bovine serum albumin (met-BSA) complexes to reveal different characteristics of EAE development including bone marrow lymphocyte proliferation and differentiation profiles of hematopoietic stem cells. Immunization of C57BL/6 mice with MOG35-55 results in the acceleration of EAE development. Anti-DNA antibodies are usually directed against DNA–histone complexes resulting from cell apoptosis. During the acute EAE phase (7-20 days after immunization), catalytic antibodies efficiently hydrolysing myelin basic protein (MBP), MOG and DNA are produced with parallel suppression of antibodies hydrolysing histones. We could show that in contrast to MOG, immunization with histone-DNA results in a reduction of proteinuria, a significant increase in anti-DNA, anti-MBP and anti-MOG antibody titres, as well as an increase in their catalytic activities for antigen hydrolysis, but slightly changes the concentration of cytokines. Contrary to MOG, DNA–histone and DNA-met-BSA only stimulated the formation of anti-DNA antibodies hydrolysing DNA with a long delay (15-20 days after immunization). Our data indicate that for C57BL/6 mice immunization with DNA-met-BSA and DNA–histone complexes may have opposing effects compared to MOG. DNA–histone stimulates the appearance of histone-hydrolysing abzymes in the acute EAE phase, while abzymes with DNase activity appear at significantly later time-points. We conclude that MOG, DNA–histone and DNA-met-BSA have different effects on numerous bone marrow, cellular, immunological and biochemical parameters of immunized mice, but all antigens finally significantly stimulate the development of the EAE. © 2018 The Authors. Journal of Cellular and Molecular Medicine published by John Wiley & Sons Ltd and Foundation for Cellular and Molecular Medicine.

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  • 1. Version of Record от 2021-04-27

Метаданные

Об авторах
  • K. Aulova
    Institute of Chemical Biology and Fundamental Medicine, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russian Federation
  • L. Toporkova
    Institute of Fundamental and Clinical Immunology, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russian Federation
  • J. Lopatnikova
    Institut für Physiologie I, Westfälische Wilhelms-Universität, Münster, Germany
  • A. Alshevskaya
    Department of Neurology, Westfälische Wilhelms-Universität, Münster, Germany
  • S. Sedykh
    Institute Cytology and Genetics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russian Federation
  • V. Buneva
    Novosibirsk State University, Novosibirsk, Russian Federation
  • T. Budde
  • S. Meuth
  • N. Popova
  • I. Orlovskaya
  • G. Nevinsky
Название журнала
  • Journal of Cellular and Molecular Medicine
Том
  • 22
Выпуск
  • 12
Страницы
  • 5816-5832
Ключевые слова
  • catalytic antibody; DNA; histone; animal; antibody specificity; apoptosis; biosynthesis; body weight; C57BL mouse; cell differentiation; cell proliferation; CFU counting; complication; cytology; disease model; experimental autoimmune encephalomyelitis; hematopoietic stem cell; hydrolysis; lymphocyte; metabolism; pathology; proteinuria; time factor; Animals; Antibodies, Catalytic; Apoptosis; Body Weight; Cell Differentiation; Cell Proliferation; Colony-Forming Units Assay; Disease Models, Animal; DNA; Encephalomyelitis, Autoimmune, Experimental; Hematopoietic Stem Cells; Histones; Hydrolysis; Lymphocytes; Mice, Inbred C57BL; Organ Specificity; Proteinuria; Time Factors
Издатель
  • Blackwell Publishing Inc.
Тип документа
  • journal article
Тип лицензии Creative Commons
  • CC
Правовой статус документа
  • Свободная лицензия
Источник
  • scopus