三尖杉酯碱,Harringtonine

Harringtonine is a cephalotaxine alkaloid originally isolated from Cephalotaxus hainanensis Li; it exhibits antiviral and anticancer activities. Harringtonine immobilizes initiated ribosomes, inhibiting protein translation by binding the A site of the 60 S ribosomal subunit and preventing aminoacyl-tRNA binding. Harringtonine inhibits chikungunya virus infection, suppressing replication, RNA production, and viral protein expression. Alone, harringtonine downregulates production of Mcl-1, increases cleavage of PARP, and inhibits cell growth in acute promyelocytic leukemia (APL) cells. Additionally, this compound improves the efficacy of co-administered chemotherapeutic compounds, further inhibiting proliferation and inducing apoptosis in leukemia cells.

Wu C, Shen H, Xia D. Harringtonine induces apoptosis in NB4 cells through down-regulation of Mcl-1. Zhejiang Da Xue Xue Bao Yi Xue Ban. 2013 Jul;42(4):431-6. PMID: 24022932.

Kaur P, Thiruchelvan M, Lee RC, et al. Inhibition of chikungunya virus replication by harringtonine, a novel antiviral that suppresses viral protein expression. Antimicrob Agents Chemother. 2013 Jan;57(1):155-67. PMID: 23275491.

Ingolia NT, Brar GA, Rouskin S, et al. The ribosome profiling strategy for monitoring translation in vivo by deep sequencing of ribosome-protected mRNA fragments. Nat Protoc. 2012 Jul 26;7(8):1534-50. PMID: 22836135.

Cai YX, Meng FY, Sun QX, et al. In vitro effect of bortezomib alone or in combination with harringtonine or arsenic trioxide on proliferation and apoptosis of multidrug resistant leukemia cells. Zhonghua Xue Ye Xue Za Zhi. 2008 Nov;29(11):737-40. PMID: 19176009.

Zhang C, Li Y, Ma H, et al. Simultaneous multi-parameter observation of Harringtonine-treating HL-60 cells with both two-photon and confocal laser scanning microscopy. Sci China C Life Sci. 2001 Aug;44(4):383-91. PMID: 18726419.

Fresno M, Jiménez A, Vázquez D. Inhibition of translation in eukaryotic systems by harringtonine. Eur J Biochem. 1977 Jan;72(2):323-30. PMID: 319998.