Interleukin-2 production in Brown-Norway rats with HgCl2-induced autoimmune disease: paradoxical in vivo versus in vitro findings.

Abstract:

:In autoimmune diseases, mitogen-induced IL-2 production in vitro is generally considered to be diminished despite evidence of lymphoid hyperactivity in vivo. HgCl2 is known to cause T-dependent polyclonal B cell activation in Brown-Norway (BN) rats, resulting in autoimmune disease. We show here that the IL-2 producing capacity of cells from HgCl2-treated BN rats is low, but that HgCl2 treatment in vitro (10(-7) M) enhances IL-2 production of normal BN splenocytes. Lewis (LEW) rats are resistant to HgCl2-induced autoimmune disease. HgCl2 treatment of these rats in vivo does not significantly decrease the IL-2 production of their splenocytes. However, HgCl2 treatment of normal LEW splenocytes in vitro enhances their IL-2 production but this requires an HgCl2 concentration ten times greater (10(-6) M) in LEW than in BN rats. These findings are discussed in an attempt to resolve the paradox between the in vivo immune hyperactivity seen in HgCl2-treated BN rats, and the apparently low IL-2 production of their splenocytes in vitro.

journal_name

Clin Exp Immunol

authors

Baran D,Lantz O,Dosquet P,Sfaksi A,Druet P

subject

Has Abstract

pub_date

1988-09-01 00:00:00

pages

401-5

issue

3

eissn

0009-9104

issn

1365-2249

journal_volume

73

pub_type

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