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Theaflavin 3,3＇-digallate

CAS No. : 30462-35-2

MCE 站：Theaflavin 3,3＇-digallate

产品活性：Theaflavin 3,3＇-digallate (TF-3) 是有效的寨卡病毒 (ZIKV) 蛋白酶抑制剂，IC₅₀ 为 2.3 μM。Theaflavin 3,3＇-digallate 直接与 ZIKVpro 结合 (K_d=8.86 µM) 并抑制 ZIKV 复制。Theaflavin 3,3＇-digallate 抑制 gp41 和 NS2B-3 蛋白酶的活性，并具有抗 HSV 和 HIV-1 病毒活性。Theaflavin 3,3＇-digallate 是红茶中的典型色素，一种有效的抗肿瘤剂。

研究领域：Anti-infection

作用靶点：Virus Protease  |  HSV  |  HIV

In Vitro: Theaflavin 3,3＇-digallate (TF-3; 6.25, 12.5, 25 μM; 24 hours) markedly reduces viral RNA copy numbers ａnd NS3, U87 MG protein expression in a dose-dependent manner.
Theaflavin 3,3＇-digallate inhibits dose-dependently ZIKV replication in Vero E6 cells (EC₅₀=7.65 μM). Theaflavin 3,3＇-digallate has minor cytotoxicity up to 40 μM in Vero E6 cells. Theaflavin 3,3＇-digallate can inhibit the post-entry events of the ZIKV replication cycle from gene transcription ａnd translation levels.
Theaflavin 3,3＇-digallate is generally regarded as the effective component for the inhibitory effects against carcinogenesis without adverse side effects by affecting multiple signal transduction pathways, such as upregulating p53 ａnd p21, inhibiting phosphorylation of the cell survival protein Akt ａnd MAPK pathway, downregulation of NF-κB, shifting the ratio between pro-/antiapoptotic proteins. Theaflavin 3,3＇-digallate causes a rapid ａnd sustained decrease in phospho-ERK1/2 ａnd -MEK1/2 protein expression. Theaflavin 3,3＇-digallate inhibits HCT116 cell growth with an IC₅₀ of 17.26 μM.

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