期刊
JOURNAL OF MEDICINAL CHEMISTRY
卷 61, 期 3, 页码 1176-1181出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.jmedchem.7b01470
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资金
- College of Medicine, University of Florida
- National Center for Advancing Translational Sciences of the National Institutes of Health under University of Florida [TLITR001428, UL1TR001427]
- National Science Foundation [DMR-1332208]
- National Institute of General Medical Sciences, National Institutes of Health [GM-103485]
Human carbonic anhydrase IX (CA IX) is upregulated in neoplastic tissues; as such, it is studied as a drug target for anticancer chemotherapy. Inhibition of CA IX has been shown to be therapeutically favorable in terms of reducing tumor growth. Previously, saccharin, a commonly used artificial sweetener, has been observed to selectively inhibit CA IX over other CA isoforms. In this study, X-ray crystallography showed acesulfame potassium (Ace K) binding directly to the catalytic zinc in CA IX (mimic) and through a bridging water in CA II. This modulation in binding is reflected in the binding constants, with Ace K inhibiting CA IX but not other CA isoforms. Hence, this study establishes the potential of Ace K (an FDA approved food additive) as a lead compound in the design and development of CA IX specific inhibitors.
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