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Buclă de formate detectată: Format:Chembox Prostratin este un activator de chinază proteică C ce se găsește în scoarța arborelui de mamala din Samoa, Homalanthus nutans (Euphorbiaceae). While prostratin was originally isolated and identified as a new phorbol from species of the genus Pimelea (Thymelaceae) in Australia, the antiviral activity of prostratin was discovered during research on the traditional knowledge of Samoan healers by ethnobotanist Paul Alan Cox and a team at the U.S. National Cancer Institute. Samoan healers use the mamala tree to treat hepatitis. Research indicated that prostratin has potential to be useful in the treatment of HIV as it could flush viral reservoirs in latently infected CD4+ T-cells.
Overview[modificare | modificare sursă]
Prostratin is of interest because of its unique ability to activate latent viral reservoirs, while preventing healthy cells from infection, as well as its discovery through ethnobotany. Pioneering agreements to protect indigenous intellectual property rights of the Samoan people were established between the Samoan government and the AIDS Research Alliance, with 20% of ARA's profits to be returned to the Samoan people, and between the Samoan Government and the University of California, Berkeley where a team led by Jay Keasling is trying to isolate the gene sequence responsible for prostratin biosynthesis. Samoa and UC Berkeley agreed to share equally in any commercial proceeds from the gene product.
In 2008, a team at Stanford University led by chemist Paul Wender has published an elegant four-step chemical synthesis of prostratin from phorbol. This practical synthesis produces gram quantities of prostratin, and is a major step forward in pharmaceutical development of prostratin.
In 2010, AIDS Research Alliance in Los Angeles, California announced that it signed a new licensing agreement with Stanford University, transferring exclusive rights of the technology developed by the Stanford research team. Phase I human clinical trials of prostratin will be carried out by the AIDS ReSearch Alliance in Los Angeles, California.
Note[modificare | modificare sursă]
- ^ Prostratin and the AIDS Research Alliance, AIDS Research Alliance, 2006
- ^ Prostratin Press Release, AIDS Research Alliance, 2001-12-13
- ^ Paul A. Wender, Jung-Min Kee, Jeffrey M. Warrington (1 mai 2008). „Practical Synthesis of Prostratin, DPP, and Their Analogs, Adjuvant Leads Against Latent HIV”. Science 320 (5876): 649–652. doi:10.1126/science.1154690. PMID 18451298.
Legături externe[modificare | modificare sursă]
- AIDS Research Alliance
- Paul Wender and Stanford Prostratin synthesis
- Jay Keasling and Prostratin Genes
- Ethnobotanist Paul Cox
- Prostratin Agreements with Samoa
- NAIAD chemical database
- U.S. University Shares Drug Royalties with Samoa for Tree Gene
- Berkeley searches for AIDS cure in a Samoan indigenous tree
- Institute for Ethnomedicine
- National Tropical Botanical Garden
- Press Release-AIDS Research Alliance Gains Exclusive Rights To New Technology from Stanford University