Protein Information

Name IL 12 (protein family or complex)
Synonyms Cytotoxic lymphocyte maturation factor; Cytotoxic lymphocyte maturation factors; IL 12; IL12; Natural killer cell stimulatory factor; Natural killer cell stimulatory factors

Compound Information

Name mercuric chloride
CAS

Reference List

PubMed Abstract RScore(About this table)
9469417 Bagenstose LM, Salgame P, Monestier M: IL-12 down-regulates autoantibody production in mercury-induced autoimmunity. J Immunol. 1998 Feb 15;160(4):1612-7.

In genetically susceptible H-2s mice, subtoxic doses of mercuric chloride (HgCl2) induce a complex autoimmune syndrome characterized by the production of anti-nucleolar IgG Abs, lymphoproliferation, increased serum levels of IgG1 and IgE Abs, and renal Ig deposits.
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8693286 Mathieson PW, Gillespie KM: Cloning of a partial cDNA for rat interleukin-12 (IL-12) and analysis of IL-12 expression in vivo. Scand J Immunol. 1996 Jul;44(1):11-4.

We studied RNA from lymphoid tissues of two rat strains which differ in their response to mercuric chloride (HgCl2): Brown Norway (BN) rats develop autoimmunity with a predominant Th2 response; Lewis rats are resistant.
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10651948 Gillespie KM, Szeto CC, Betin VM, Mathieson PW: Role of beta1 and beta2 subunits of the interleukin-12 receptor in determining T helper 1/T helper 2 responses in vivo in the rat. Immunology. 2000 Jan;99(1):109-12.

Interleukin-12 (IL-12) responsiveness, and hence capacity to mount a T helper type 1 (Th1) immune response, may be regulated via differential expression of the IL-12 receptor beta2 subunit at least in vitro in human and murine cells.
After treatment with mercuric chloride (HgCl2), Brown-Norway rats develop Th2-biased autoimmunity whereas Lewis rats do not develop autoimmunity, instead becoming resistant to Th1-biased diseases to which they are normally susceptible.
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10886234 Gorrie MJ, Qasim FJ, Whittle CJ, Gillespie KM, Szeto CC, Nicoletti F, Bolton EM, Bradley JA, Mathieson PW: Exogenous type-1 cytokines modulate mercury-induced hyper-IgE in the rat. Clin Exp Immunol. 2000 Jul;121(1):17-22.

In susceptible rat strains, mercuric chloride (HgCl2) induces activation of Th2 cells, with enhanced expression of IL-4, polyclonal B cell activation and very high levels of circulating IgE.
We have previously shown that spontaneous regulation of this response coincides with enhanced expression of Th1/type-1 cytokines, including interferon-gamma (IFN-gamma) and IL-12.
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9764596 Bagenstose LM, Salgame P, Monestier M: Mercury-induced autoimmunity in the absence of IL-4. . Clin Exp Immunol. 1998 Oct;114(1):9-12.

In susceptible H-2S mice, mercuric chloride (HgCl2) induces an autoimmune syndrome characterized by production of anti-nucleolar antibodies (ANoA) and increased serum levels of IgG1 and IgE antibodies.
We have previously shown that administration of IL-12, a potent Th1-promoting cytokine, resulted in a dramatic reduction of the HgCl2-induced anti-nucleolar antibody titres and inhibited serum IgG1 increase.
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10886398 Szeto C, Gillespie KM, Mathieson PW: Levamisole induces interleukin-18 and shifts type 1/type 2 cytokine balance. Immunology. 2000 Jun;100(2):217-24.


Further, the type 2 response induced in BN rats by mercuric chloride was markedly attenuated when rats were pretreated with levamisole: there was a 2-log reduction in maximum serum IgE level and marked attenuation of IL-4 gene upregulation.
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10447925 Szeto C, Gillespie KM, Mathieson PW: Low-dose mercuric chloride induces resistance in brown norway rats to further mercuric chloride by up-regulation of interferon-gamma. Scand J Immunol. 1999 Aug;50(2):195-201.

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