Abstract
Despite multiple new-drug approvals in recent years, prostate cancer remains a global health challenge because of the prostate cancers are resistant to androgen deprivation therapy. Here, we show that a small D-phosphopeptide undergoes prostatic acid phosphatase (PAP)-instructed self-assembly for inhibiting castration-resistant prostate cancer (CRPC) cells. Specifically, the installation of phosphate at the C-terminal of a D-tripeptide results in the D-phosphopeptide. Dephosphorylating the D-phosphopeptide by PAP forms uniform nanofibers that inhibit VCaP, a CRPC cell. A non-hydrolyzable phosphate analogue of the D-phosphopeptide, which shares similar self-assembling properties with the D-phosphopeptide, confirms that PAP-instructed assembly is critical for the inhibition of VCaP. This work, for the first time, demonstrates PAP-instructed self-assembly of peptides for selective inhibiting CRPC cells.
Original language | English (US) |
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Article number | e24123 |
Journal | Peptide Science |
Volume | 112 |
Issue number | 1 |
DOIs | |
State | Published - Jan 1 2020 |
Keywords
- drug resistance
- enzyme
- prostate cancer
- selective inhibition
- self-assembly
ASJC Scopus subject areas
- Biophysics
- Biochemistry
- Biomaterials
- Organic Chemistry