A Comparison of the Anti-Cancer Effects of Free and PLGA-PAA Encapsulated Hydroxytyrosol on the HT-29 Colorectal Cancer Cell Line

(E-pub Ahead of Print)

Author(s): Nasrin S. Sani, Habib Onsori*, Somayeh Akrami, Mohammad Rahmati

Journal Name: Anti-Cancer Agents in Medicinal Chemistry
(Formerly Current Medicinal Chemistry - Anti-Cancer Agents)

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Background: Hydroxytyrosol is one of the phenolic compounds of olive oil and can induce anticancer effects on colorectal cancer cells.

Objective: The aim of the present study was to evaluate the free hydroxytyrosol and nano-capsulated hydroxytyrosol effects on the cell cycle arrest in HT-29 colorectal cancer cell line.

Methods: The nano-capsulated hydroxytyrosol was synthesized in poly lactide-co-glycolide-co-polyacrylic acid (PLGA-PAA) copolymer. MTT assay was performed to evaluate the anti-proliferative and anti-tumor effects of the free hydroxytyrosol and nano-capsulated hydroxytyrosol. Finally, the relative expression of CDKN1A, CDKN1B, and CCND1 genes was evaluated in control and treated colorectal cancer cells by using Real-Time PCR.

Results: The obtained results from the MTT assay showed that the cytotoxic effects of the nano-capsulated hydroxytyrosol on the colorectal cancer cell line (IC50= 6PPM) were significantly more than free hydroxytyrosol (IC50= 12PPM) after 72h. Also, nano-capsulated hydroxytyrosol showed more significant effects on the upregulation of CDKN1A and CDKN1B genes and down-regulation of the CCND1 gene in colorectal cancer cells.

Conclusion: In conclusion, the present study showed that hydroxytyrosol led to the death of colorectal cancer cells through cell cycle arrest. Also, the PLGA-PAA copolymer dramatically caused to increase the cytotoxic effects of the hydroxytyrosol on the colorectal cancer cells.

Keywords: Colorectal cancer, PLGA-PAA copolymer, hydroxytyrosol, HT-29, CCND1, CDKN1A, CDKN1B.

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Article Details

Published on: 07 March, 2021
(E-pub Ahead of Print)
DOI: 10.2174/1871520621666210308095712
Price: $95

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