Prostatein or steroid binding protein (PSBP) induces experimental autoimmune prostatitis (EAP) in NOD mice

In a previous study, we showed that nonobese diabetic (NOD) mice, a strain that present an inherited predisposition to develop both spontaneous and induced autoimmune lesions, are susceptible to the induction of experimental autoimmune prostatitis (EAP), developing a severe inflammatory reaction in...

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Veröffentlicht in:Clinical immunology (Orlando, Fla.). - 1999. - 105(2002), 2 vom: 01. Nov., Seite 176-84
1. Verfasser: Rivero, Virginia (VerfasserIn)
Weitere Verfasser: Carnaud, Claude, Riera, Clelia Maria
Format: Aufsatz
Sprache:English
Veröffentlicht: 2002
Zugriff auf das übergeordnete Werk:Clinical immunology (Orlando, Fla.)
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Androgen-Binding Protein Autoantibodies Autoantigens Histocompatibility Antigens Class II Prostatein Scgb1d2 protein, rat Scgb1d4 protein, rat Scgb2a2 protein, rat mehr... Secretoglobins beta 2-Microglobulin Uteroglobin 9060-09-7
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520 |a In a previous study, we showed that nonobese diabetic (NOD) mice, a strain that present an inherited predisposition to develop both spontaneous and induced autoimmune lesions, are susceptible to the induction of experimental autoimmune prostatitis (EAP), developing a severe inflammatory reaction in the prostate, accompanied by humoral and T-cell-mediated responses. In this study we asked whether the protein steroid binding protein (PSBP) or prostatein (a major autoantigen in the rat model of EAP) is a potential autoantigen in the NOD mouse model and examined the ability of purified PSBP to induce EAP in this strain. Our results indicate clearly that NOD male mice react immunologically to PSBP by developing lymphocytic inflammatory lesions in prostatic tissue and producing both a cellular- and humoral-specific autoimmune response. But our results suggest also the existence of other prostatic autoantigens present only in total prostate extract. Such additional antigens could enhance the autoimmune response and result in more severe forms of inflammation. We also analyzed the respective contributions of MHC antigens and CD4/CD8 T-cell subsets in NOD mice lacking expression of beta 2-microglobulin (NOD.beta2m degrees/degrees) or MHC class II beta chain (NOD.Abeta degrees/degrees) and demonstrate an essential role for CD4(+) T cells in the development of EAP in the NOD model. In conclusion, we demonstrate that PSBP is an autoantigen recognized by the NOD immune system, capable of generating humoral and cellular autoimmune responses and of inducing EAP. Moreover, using selected knock-out NOD mice we demonstrate an essential role for CD4(+) T cells in the development of EAP 
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650 7 |a Histocompatibility Antigens Class II  |2 NLM 
650 7 |a Prostatein  |2 NLM 
650 7 |a Scgb1d2 protein, rat  |2 NLM 
650 7 |a Scgb1d4 protein, rat  |2 NLM 
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700 1 |a Carnaud, Claude  |e verfasserin  |4 aut 
700 1 |a Riera, Clelia Maria  |e verfasserin  |4 aut 
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