Prostratin, PKC activator

Activation of latent reservoirs of HIV-infected cells is a treatment strategy designed to reduce viral load and eliminate the perpetuation of retroviral infection. Prostratin is a non-tumor promoting phorbol ester that potently induces HIV-1 reactivation in latent reservoirs of infected Jurkat-LAT-GFP cells with an IC₅₀ value of ~0.5 μM. Originally, prostratin was isolated from plant sources including P. prostrata, E. cornigera, and H. nutans. The effects of prostratin are mediated through activation of NF-κB via protein kinase C and by downregulation of HIV-1 receptor CD4 expression and its co-receptors CXCR4 and CCR5.

Activation of latent reservoirs of HIV-infected cells is a treatment strategy designed to reduce viral load and eliminate the perpetuation of retroviral infection. Prostratin is a non-tumor promoting phorbol ester that potently induces HIV-1 reactivation in latent reservoirs of infected Jurkat-LAT-GFP cells . [Cayman Chemical]

ChEBI: A natural product found in Euphorbia fischeriana.

Prostratin, an unusual non-tumorigenic phorbol ester, is an activator of protein kinase C (PKC) and also an activator of nuclear factor KB (NF-KB) mediated through activation of the IKKs (IKB kinases). Prostratin exhibits potent in vitro activity by inducing HIV expression in latently infected cell lines and primary cells, thus antagonizing HIV latency. Activation of PKC and NF-kB has been proposed as the mechanism of action. Prostratin also inhibits HIV entry into target cells by down-regulating CD4 and CXCR4 receptors.

PKC: 12.5 nM (Ki); HIV-1

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