Title : Indoleamine 2,3-dioxygenase, an immunomodulatory protein, is suppressed by (-)-epigallocatechin-3-gallate via blocking of gamma-interferon-induced JAK-PKC-delta-STAT1 signaling in human oral cancer cells.

Pub. Date : 2010 Jan 27

PMID : 19928918






5 Functional Relationships(s)
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1 Indoleamine 2,3-dioxygenase, an immunomodulatory protein, is suppressed by (-)-epigallocatechin-3-gallate via blocking of gamma-interferon-induced JAK-PKC-delta-STAT1 signaling in human oral cancer cells. epigallocatechin gallate signal transducer and activator of transcription 1 Homo sapiens
2 The study results demonstrate that EGCG can inhibit translocation of STAT1 into nucleus in IFN-gamma-stimulated human oral cancer cells. epigallocatechin gallate signal transducer and activator of transcription 1 Homo sapiens
3 In addition, both tyrosine and serine phosphorylation of STAT1 are revealed to be suppressed by EGCG. epigallocatechin gallate signal transducer and activator of transcription 1 Homo sapiens
4 Moreover, phosphorylation of PKC-delta, JAK-1, and JAK-2, which are the upstream event for the activation of STAT1, are also inhibited by EGCG in IFN-gamma-stimulated human oral cancer cells. epigallocatechin gallate signal transducer and activator of transcription 1 Homo sapiens
5 These data show that EGCG inhibited IDO expression by blocking the IFN-gamma-induced JAK-PKC-delta-STAT1 signaling pathway. epigallocatechin gallate signal transducer and activator of transcription 1 Homo sapiens