Title : Down-regulation of liver JAK2-STAT5b signaling by the female plasma pattern of continuous growth hormone stimulation.

Pub. Date : 1999 Feb

PMID : 9973252






3 Functional Relationships(s)
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1 Increased STAT5b DNA-binding activity was observed in cells treated with the proteasome inhibitor MG132, suggesting that at least one component of the GH receptor (GHR)-JAK2-STAT5b signaling pathway becomes labile in response to continuous GH treatment. benzyloxycarbonylleucyl-leucyl-leucine aldehyde Janus kinase 2 Rattus norvegicus
2 Moreover, the requirement for ongoing GH stimulation and active protein synthesis to maintain STAT5b activity in continuous GH-treated cells were both eliminated by pervanadate treatment, suggesting that phosphotyrosine dephosphorylation may be an obligatory first step in the internalization/degradation pathway for the GHR-JAK2 complex. pervanadate Janus kinase 2 Rattus norvegicus
3 Moreover, the requirement for ongoing GH stimulation and active protein synthesis to maintain STAT5b activity in continuous GH-treated cells were both eliminated by pervanadate treatment, suggesting that phosphotyrosine dephosphorylation may be an obligatory first step in the internalization/degradation pathway for the GHR-JAK2 complex. Phosphotyrosine Janus kinase 2 Rattus norvegicus