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Ann Med. 1997 Feb;29(1):63-72.

The signal transducer gp130 is shared by interleukin-6 family of haematopoietic and neurotrophic cytokines.

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1
Department of Molecular Cell Biology, Medical Research Institute, Tokyo Medical and Dental University, Japan.

Abstract

Receptors for many of the cytokines functioning in the haematopoietic system belong to the class I cytokine receptor family. In most cases these receptors share common signal transducing receptor components in the same family, which explains the functional redundancy of haematopoietic cytokines. Interleukin-6 and related cytokines, interleukin-11, leukaemia inhibitory factor, oncostatin M, ciliary neurotrophic factor and cardiotrophin-1, are all pleiotrophic, from the haematopoietic to the nervous system, and exhibit overlapping biological activities. Receptors for these cytokines fall into the class I cytokine receptor family. Functional receptor complexes for the interleukin-6 family of cytokines share a membrane glycoprotein 130 (gp130) as a critical component for signal transduction. In these receptor complexes, gp130 and ligand-specific chains possess no intrinsic tyrosine kinase domain but are associated with cytoplasmic tyrosine kinases. Ligand stimulation triggers homo- or heterodimerization of gp130, leading to activation of the associated cytoplasmic tyrosine kinases and subsequent modification of transcription factors. This paper reviews the recent progress in the study of gp130 and the background information from biomedical and biochemical viewpoints.

PMID:
9073325
DOI:
10.3109/07853899708998744
[Indexed for MEDLINE]

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