Discovery of Quinolinediones Exhibiting a Heat Shock Response and Angiogenesis Inhibition
摘要:
A series of substituted quinoline-5,8-diones were synthesized and evaluated as inhibitors of the chaperone protein Hsp90 using two assays: competition for binding to C-terminal ATP-binding site and competition for binding to N-terminal ATP-binding site. In addition, the ability of the compounds to induce the heat shock response was determined using a reporter fibroblast cell line. Of all the compounds assayed, only 6-aziridinyl-2-biphenylquinoline-5,8-dione induced a heat shock response and did so without interacting at the ATP binding sites of Hsp90. COMPARE analysis was carried out on quinoline-5,8-diones active in the National Cancer Institute's 60-cell line screen with the goal of discovering quinoline-5,8-dione structures that interact with other cellular targets (molecular targets) important for cancer chemotherapy. COMPARE analysis led to the discovery of a combretastatin- like quinoline-5,8-dione structure that, in fact, inhibited angiogenesis.
Discovery of Quinolinediones Exhibiting a Heat Shock Response and Angiogenesis Inhibition
作者:Robert H. J. Hargreaves、Cynthia L. David、Luke J. Whitesell、Daniel V. LaBarbera、Akmal Jamil、Jean C. Chapuis、Edward B. Skibo
DOI:10.1021/jm7014099
日期:2008.4.1
A series of substituted quinoline-5,8-diones were synthesized and evaluated as inhibitors of the chaperone protein Hsp90 using two assays: competition for binding to C-terminal ATP-binding site and competition for binding to N-terminal ATP-binding site. In addition, the ability of the compounds to induce the heat shock response was determined using a reporter fibroblast cell line. Of all the compounds assayed, only 6-aziridinyl-2-biphenylquinoline-5,8-dione induced a heat shock response and did so without interacting at the ATP binding sites of Hsp90. COMPARE analysis was carried out on quinoline-5,8-diones active in the National Cancer Institute's 60-cell line screen with the goal of discovering quinoline-5,8-dione structures that interact with other cellular targets (molecular targets) important for cancer chemotherapy. COMPARE analysis led to the discovery of a combretastatin- like quinoline-5,8-dione structure that, in fact, inhibited angiogenesis.