Journal
BIOCHEMISTRY
Volume 47, Issue 48, Pages 12658-12660Publisher
AMER CHEMICAL SOC
DOI: 10.1021/bi801883v
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Funding
- National Institutes of Health [S06-GM052588]
- National Cancer Institute [IR21CA122126-01]
- U.S. Department of Defense [W81XWH-06-1-0039]
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The mode of inhibition for phosphoramidate peptidomimetic inhibitors of prostate-specific membrane antigen was determined by inhibition reversibility experiments. The results revealed that these inhibitors can be classified into three types: pseudoirreversible (compounds 1-3), moderately reversible (compounds 4-9), and rapidly reversible inhibitors (compounds 10 and 11). Representative compounds from each class were further evaluated for their ability to induce cellular internalization of PSMA. Results from these experiments revealed that the pseudoirreversible inhibitor 1 induced the greatest PSMA internalization. The discovery of pseudoirreversible PSMA inhibitors is expected to provide a new avenue of investigation and therapeutic applications for prostate cancer and neurological disorders.
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