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The Journal of Immunology, Vol 144, Issue 1 75-83, Copyright © 1990 by American Association of Immunologists
ARTICLES |
WH Hines, RA Mann, CJ Kelly and EG Neilson
Renal-Electrolyte Section, University of Pennsylvania School of Medicine, Philadelphia 19104.
The experiments presented in this report describe the biochemical and functional characteristics of a soluble Th cell factor (ThF) which can induce a nephritogenic effector T cell repertoire producing autoimmune interstitial nephritis. The ThF is Ag-specific, I-A-restricted, and comprises two chains noncovalently linked as a heterodimer. One chain at approximately 78,000 Mr is related to the TCR/Id and expresses a framework determinant (14-30) common to Ag-binding factors, and the other chain at approximately 82,000 Mr is I-A+. Together these chains can replace their parent cell by providing cognate help to precursor effector T lymphocytes in the presence of accessory cells, tubular Ag, and IL-2.
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