Yatein is a lignan isolated from A. chilensis , with antiproliferative activity Yatein suppresses herpes simplex virus type 1 (HSV-1 ) replication by interruption the immediate-early gene expression . In Vitro Yatein induces cell-cycle arrest at G2/M phase (5 μM; 24 hours) and enhances G2/M phase-related protein expression (5 μM; 6-12 hours) in human lung adenocarcinoma A549 and CL1-5 cells. Yatein (5 μM; 6-12 hours) induces DNA damage through activation of the ATM/ATR pathway in human A549 and CL1-5 cells. Yatein (5 μM; 6 hours) affects microtubule dynamics by inhibiting tubulin polymerization. MCE has not independently confirmed the accuracy of these methods. They are for reference only. Cell Cycle AnalysisCell Line: A549 cells, CL1-5 cells Concentration: 1.25 μM , 2.5 μM , 5 μM Incubation Time: 24 hours Result: Induced cell-cycle arrest at G2/M phase in both cell lines. Western Blot AnalysisCell Line: A549 cells, CL1-5 cells Concentration: 5 μM Incubation Time: 6 hours, 12 hours Result: Upregulated the expression of cyclin B1, but not Cdc2 and Cdc25c, induced Cdc2 phosphorylation. In Vivo Yatein (20 mg/kg; i.p.; five times per week; for 42 days) exhibits in vivo antitumor effects in a human lung adenocarcinoma xenograft mouse model. MCE has not independently confirmed the accuracy of these methods. They are for reference only. Animal Model: Male NOD/SCID mice (6-8 weeks), with A549 cells xenograftDosage: 20 mg/kg Administration: Intraperitoneal injection, five times per week, for 42 days Result: Significantly slowed tumor growth and moderately increased both cyclin B1 expression and Cdc2 phosphorylation. Form:Oil IC50& Target:HSV-1