Synthesis and Cytotoxicity of a New Class of Potent Decapeptide Macrocycles
作者:Melinda R. Davis、Thomas J. Styers、Rodrigo A. Rodriguez、Po-Shen Pan、Robert C. Vasko、Shelli R. McAlpine
DOI:10.1021/ol702403r
日期:2008.1.1
were made using a succinct convergent synthesis. These analogues share no structural homology to current cancer drugs, are cytotoxic at levels on par with existing drugs treating cancers, and demonstrate selectivity for drug-resistant pancreatic cancer cell lines over noncancerous cell lines. These molecules are excellent chemotherapeutic leads in the search for new anticancer agents.
Comprehensive Study of Sansalvamide A Derivatives and their Structure–Activity Relationships against Drug-Resistant Colon Cancer Cell Lines
作者:Katerina Otrubova、Gerald Lushington、David Vander Velde、Kathleen L. McGuire、Shelli R. McAlpine
DOI:10.1021/jm070731a
日期:2008.2.1
We report an extensive structure-activity relationship (SAR) of 62 compounds active against two drug-resistant colon cancer cell lines. Our comprehensive evaluation of two generations of compounds utilizes SAR, NMR, and molecular modeling to evaluate the key 3D features of potent compounds. Of the seven most potent compounds reported here, five are second-generation, emphasizing our ability to incorporate potent features found in the first generation and utilize their structures to design potency into the second generation. These analogs share no structural homology to current colon cancer drugs, are cytotoxic at levels on par with existing drugs treating other cancers, and demonstrate selectivity for drug-resistant colon cancer cell lines over noncancerous cell lines. Thus, we have established sansalvamide A as an excellent lead for treating, multiple drug-resistant colon cancers.