New Haven, Conn.Yale University scientists have streamlined the process for synthesizing a family of compounds with the potential to kill cancer and other diseased cells, and have found that they represent a unique category of anti-cancer agents. Their discovery appears in this week's online edition of the Journal of the American Chemical Society.
The team studied a family of compounds known as the kinamycins, which are naturally produced by bacteria during metabolism and are known for their potent toxicity. For years scientists have guessed that a core structure common to the different compounds within the group was responsible for this toxicity. Until now, chemists could not study the core structure because there was no simple way to create it in the laboratory.
Now the Yale team has developed a new method to recreate this structure that allows them to synthesize the kinamycins with much greater efficiency than previously possible. While scientists have produced kinamycins in the laboratory in the past, the Yale team was able to halve the number of steps required to go from simple, easily obtainable precursors to the complete moleculefrom 24 down to 12.
"By shortening the synthesis we can now prepare these molecules in the quantities required for further studies, including animal studies and even clinical trials," said Seth Herzon, assistant professor of chemistry and lead author of the study.
Working with researchers at the Yale School of Medicine and the Yale Chemical Genomics Screening Facility, the team has begun testing several of the compounds against cancer cells, with promising preliminary results. Next, they will work to understand the exact mechanism that makes the compoundswhich are benign on their ownhighly toxic once they penetrate cells.
"The key to success will be whether we can develop selectivitywhether we can kill cancer cells in the presence of non-cancerous tissue," Herzon said. "Bas
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