EFFECTS OF ANTI-I-A AND ANTI-I-E MONOCLONAL-ANTIBODIES ON THE INDUCTION AND EXPRESSION OF EXPERIMENTAL AUTOIMMUNE-THYROIDITIS IN MICE

被引：10

作者：

STULL, SJ ^{[1
]}

KYRIAKOS, M ^{[1
]}

SHARP, GC ^{[1
]}

BICKEL, JT ^{[1
]}

BRALEYMULLEN, H ^{[1
]}

机构：

[1] UNIV MISSOURI,DEPT MED,DIV IMMUNOL,COLUMBIA,MO 65212

来源：

AUTOIMMUNITY | 1990年 / 6卷 / 1-2期

关键词：

Anti-Ia monoclonal antibodies; Experimental autoimmune thyroiditis; T cell activation;

D O I：

10.3109/08916939008993367

中图分类号：

R392 [医学免疫学]; Q939.91 [免疫学];

学科分类号：

100102 ;

摘要：

Susceptibility to experimental autoimrnune thyroiditis (EAT) in mice is linked to the I-A subregion of the major histocompatibility complex (MHC). The present study was undertaken to assess the effectiveness of anti-I-Ak monoclonal antibody (MAb) 10-2.16 in preventing or arresting the development of EAT. Spleen cells from CBA/J or (CBA/J x Balb/c) Fl mice given 10-2.16 prior to sensitization with mouse thyro-globulin (MTg) and adjuvant could not transfer EAT to normal recipients, and cells from these mice did not proliferate in vitro to MTg. Donor CBA/J mice given 10-2.16 before immunization and recipients of cells from such mice produced little MTg-specific lgGl or IgG2b antibody but did produce nearly as much IgG2a as controls. The effects of in vivo treatment with 10-2. 16 appear to be due to elimination of Ia + cells rather than to modulation of Ia or induction of suppressor T cells. When 10-2.16 was added to in vitro cultures it also prevented the proliferation and activation of sensitized CBA/J or Fl effector cell precursors. Other mAb specific for MHC class II gene products, but not associated with disease susceptibility, expressed by CBA/J (I-Ek) or FI (I-Ad) mice (14-4-4S or MK-D6 respectively), also prevented in vivo sensitization, but did not block in vitro activation. Anti-I-Ak was also effective in preventing EAT if multiple injections of mAb were given to recipients of sensitized EAT effector cells. These studies indicate that Ia + cells are required for initial sensitization and activation of EAT effector cells and also contribute to the development of severe histopathologic lesions in the thyroid during the final effector stage of EAT. © 1990 Informa UK Ltd All rights reserved: reproduction in whole or part not permitted.

引用

页码：23 / 36

页数：14

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