Title : Epigallocatechin-3 Gallate Inhibits STAT-1/JAK2/IRF-1/HLA-DR/HLA-B and Reduces CD8 MKG2D Lymphocytes of Alopecia Areata Patients.

Pub. Date : 2018 Dec 15

PMID : 30558329






4 Functional Relationships(s)
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1 Epigallocatechin-3 Gallate Inhibits STAT-1/JAK2/IRF-1/HLA-DR/HLA-B and Reduces CD8 MKG2D Lymphocytes of Alopecia Areata Patients. epigallocatechin gallate signal transducer and activator of transcription 1 Homo sapiens
2 In vitro treatment of HaCat and Jurkat cells with 40 mum EGCG for 48 h was performed to measure the level of phosphorylation of signal transducer and activator of transcription protein STAT1, and replicated in ex vivo model using PBMCs of AA patients. epigallocatechin gallate signal transducer and activator of transcription 1 Homo sapiens
3 RESULTS: Interestingly, 40 mum EGCG is capable of completely inhibiting phosphorylation of STAT1 after 48 h in HaCat and Jurkat cells and ex vivo in PBMCs of AA patients. epigallocatechin gallate signal transducer and activator of transcription 1 Homo sapiens
4 Based on QPCR data, the action of EGCG on p-STAT1 seems to be mediated via downregulation of the expression of JAK2 but not JAK1 leading to the inhibition of human leukocyte antigens (HLA-DR and HLA-B) expression probably via IRF-1. epigallocatechin gallate signal transducer and activator of transcription 1 Homo sapiens