Journal
COMPUTATIONAL BIOLOGY AND CHEMISTRY
Volume 78, Issue -, Pages 317-329Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.compbiolchem.2018.12.006
Keywords
Human PK-M2; Virtual high-throughput screening; Data mining; QSAR; Drug discovery; Signature
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Glycolysis with PK-M2 occurs typically in anaerobic conditions and atypically in aerobic conditions, which is known as the Warburg effect. The Warburg effect is found in many oncogenic situations and is believed to provide energy and biomass for oncogenesis to persist. The work presented targets human PK-M2 (hPK-M2) in a virtual high-throughput screen to identify new inhibitors and leads for further study. In the initial screen, one of the 12 candidates selected for experimental validation showed biological activity (hit-rate = 8.13%). In the second screen with retrained models, six of 11 candidates selected for experimental validation showed biological activity (hit-rate: 54.5%). Additionally, four different scaffolds were identified for further analysis when examining the tested candidates and compounds in the training data. Finally, extrapolation was necessary to identify a sufficient number of candidates to test in the second screen. Examination of the results suggested stepwise extrapolation to maximize efficiency.
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