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Researchers find cancer-inhibiting compound under the sea
Date:8/7/2008

GAINESVILLE, Fla. University of Florida College of Pharmacy researchers have discovered a marine compound off the coast of Key Largo that inhibits cancer cell growth in laboratory tests, a finding they hope will fuel the development of new drugs to better battle the disease.

The UF-patented compound, largazole, is derived from cyanobacteria that grow on coral reefs. Researchers, who described results from early studies today (Aug. 7) at an international natural products scientific meeting in Athens, Greece, say it is one of the most promising they've found since the college's marine natural products laboratory was established three years ago.

An initial set of papers in the Journal of the American Chemical Society also has garnered the attention of other scientists, and the lab is racing to complete additional research. The molecule's natural chemical structure and ability to inhibit cancer cell growth were first described in the journal in February and the laboratory synthesis and description of the molecular basis for its anticancer activity appeared July 2.

"It's exciting because we've found a compound in nature that may one day surpass a currently marketed drug or could become the structural template for rationally designed drugs with improved selectivity," said Hendrik Luesch, Ph.D., an assistant professor in UF's department of medicinal chemistry and the study's principal investigator.

Largazole, discovered and named by Luesch for its Florida location and structural features, seeks out a family of enzymes called histone deacetylase, or HDAC. Overactivity of certain HDACs has been associated with several cancers such as prostate and colon tumors, and inhibiting HDACs can activate tumor-suppressor genes that have been silenced in these cancers.

Although scientists have been probing the depths of the ocean for marine products since the early 1960s, many pharmaceutical companies lost interest before resear
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Contact: Linda Homewood
homewood@ufl.edu
352-273-6873
University of Florida
Source:Eurekalert

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