Design, synthesis and evaluation of protein disulfide isomerase inhibitors with nitric oxide releasing activity

Lin Li, Jian Liu, Yaqi Ding, Zhenxiong Shi, Bo Peng, Naidi Yang, Danqi Hong, Chengwu Zhang, Chuanhao Yao, Jingyan Ge, Wei Huang

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

Protein disulfide isomerase (PDI), a chaperone protein mostly in endoplasmic reticulum, catalyzes disulfide bond breakage, formation, and rearrangement to promote protein folding. PDI is regarded as a new target for treatment of several disorders. Here, based on the combination principle, we report a new PDI reversible modulator 16F16A-NO by replacing the reactive group in a known PDI inhibitor 16F16 with nitric oxide (NO) donor. Using molecular docking experiment, 16F16A-NO could embed into the active cavity of PDI. From newly developed fluorescent assay, 16F16A-NO showed rapid NO release. Furthermore, it is capable to moderately inhibit activity of PDI and S-nitrosylate the protein, indicating by insulin aggregation assay and biotin-switch technique. Finally, it displayed a dose-dependent antiproliferative activity against SH-SY5Y and HeLa tumor cells. Our designed hybrid compound 16F16A-NO showed a reasonable activity and might offer a promising avenue to develop novel PDI inhibitors for disease treatments.

Original languageEnglish
Article number126898
JournalBioorganic and Medicinal Chemistry Letters
Volume30
Issue number3
DOIs
StatePublished - 1 Feb 2020

Keywords

  • Biotin-switch technique
  • Nitric oxide
  • Protein disulfide isomerase
  • S-nitrosylation

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