Journal
BIOORGANIC CHEMISTRY
Volume 109, Issue -, Pages -Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.bioorg.2021.104713
Keywords
Hepatocellular carcinoma; Organoselenium; Multicomponent reactions; Isocyanide; Chemo-sensitization
Funding
- Mansoura Research center for Cord Stem Cells (MARC-CSC) at Mansoura University
- Goethe University (FrankfurtGermany)
- Deanship of Scientific Research at King Faisal University (Saudi Arabia)
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Recent research has uncovered a novel organoselenium-based pseudopeptide that shows promising efficacy in treating hepatocellular carcinoma, making cells more sensitive to cisplatin and inducing apoptosis by modulating ROS levels.
Despite all recent advances in the treatment of hepatocellular carcinoma (HCC), chemotherapy resistance still represents a major challenge in its successful clinical management. Chemo-sensitization offers an attractive strategy to counter drug resistance. Herein we report the identification of novel organoselenium-based pseudopeptides as promising highly effective chemo-sensitizers in treating HCC with cisplatin. A series of functionalized pseudopeptide- (5?9 and 17?19), peptidomimetic- (10?12 and 20?23), and tetrazole-based (13?16 and 24?27) organoselenium compounds were synthesized via isonitrile-based multicomponent reactions from two novel selenium-containing isocyanides. All compounds were evaluated for their cytotoxicity against HepG2 and the non-cytotoxic doses were used to restor the sensitivity of the cells to cisplatin. New organoselenium compounds (7, 9, 15, or 23) led to an effective chemo-sensitization of HepG2 cells towards cisplatin (up-to 27-fold). Cell cycle studies indicate that the most potent peptidomimetic diselenide 23 arrested cells at the S phase and induced apoptosis via ROS modulation.
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