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Mice Transgenic for a Soluble Form of Murine Cytotoxic T Lymphocyte Antigen 4 Are Refractory to Murine Acquired Immune Deficiency Sydrome Development
de Leval, Laurence; Debrus, S.; Lane, P. et al.
1999In Immunology, 98 (4), p. 630-8
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Abstract :
[en] Interactions between B and CD4+ T cells are central to the pathogenesis of retrovirus-induced murine acquired immune deficiency virus (MAIDS). Prompted by previous work showing that treatment with cytotoxic T lymphocyte antigen 4 immunoglobulin (CTLA4Ig) partly inhibited the disease, we studied the course of infection in mice deficient for CD28-B7 interactions (mCTLA4-Hgamma1 transgenic mice). Despite a relative viral load identical to that of non-transgenic mice, the transgenic mice did not develop any of the major MAIDS symptoms (i.e. lymphoproliferation and immune anergy). The mCTLA4-Hgamma1 did not however, completely inhibit B-cell activation as indicated by a slight hypergammaglobulinaemia and microscopic blastic transformation. Absence of MAIDS in transgenic mice was associated with much lower levels of both interleukin-4 and interferon-gamma transcripts following viral infection. These results support the theory that the CD28/B7 costimulatory pathway is a critical determinant to MAIDS development.
Disciplines :
Immunology & infectious disease
Author, co-author :
de Leval, Laurence ;  Université de Liège - ULiège > Département des sciences biomédicales et précliniques > Anatomie et cytologie pathologiques
Debrus, S.
Lane, P.
Boniver, Jacques ;  Université de Liège - ULiège > Département des sciences biomédicales et précliniques > Anatomie et cytologie pathologiques
Moutschen, Michel  ;  Université de Liège - ULiège > Département des sciences cliniques > Immunopathologie - Transplantation
Language :
English
Title :
Mice Transgenic for a Soluble Form of Murine Cytotoxic T Lymphocyte Antigen 4 Are Refractory to Murine Acquired Immune Deficiency Sydrome Development
Publication date :
December 1999
Journal title :
Immunology
ISSN :
0019-2805
eISSN :
1365-2567
Publisher :
Blackwell, Oxford, United Kingdom
Volume :
98
Issue :
4
Pages :
630-8
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 25 November 2013

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