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Yeong-shik Kim 1 Article
Ingenol Protects Human T Cells From HIV-1 Infection
Kee-Jong Hong, Hak Sung Lee, Yeong-shik Kim, Sung Soon Kim
Osong Public Health Res Perspect. 2011;2(2):109-114.   Published online June 30, 2011
DOI: https://doi.org/10.1016/j.phrp.2011.07.001
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  • 10 Citations
AbstractAbstract PDF
Objectives
Many natural compounds have been investigated as drug candidates to prevent human immunodeficiency virus (HIV) with low cytotoxicity. We tested whether ingenol from Euphorbia ingens exerts anti-HIV effects in human T cell lines.
Methods
and Results Ingenol effectively maintained high cell viability (CD50, >1 mM) in H9 and MT4 T cells. The efficacy of ingenol to inhibit HIV-1 infection was dose dependent. ED50 for 100 and 200 TCID50 of HIV-1 was 5.06 and 16.87 μM, respectively. Gag p24 antigen production in ingenol-treated MT4 cells was reduced by 24.5% on day 6 post-infection. While p24 antigen was reduced in ingenol-treated cells, levels of cytokines such as TNF-α and IL-6 and chemokines such as RANTES and MCP-1 were increased. dUTP level related to late apoptotic events was increased on day 2 post-infection of HIV by ingenol treatment, whereas expression of annexin V was unchanged. Reduced levels of iNOS and ZAP-70 after HIV infection were recovered by ingenol treatment.
Conclusion
Ingenol helps T cells to survive longer against viremia after HIV-1 infection, without exerting cytotoxic effects. Ingenol can be considered a safe and efficacious candidate for immune-boosting therapy for AIDS patients.

Citations

Citations to this article as recorded by  
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PHRP : Osong Public Health and Research Perspectives