Abstract 1824: Hexadecanoic acid mediated cell cycle arrest involving inhibition of cell migration

Abstract The Caribbean region accounts for the highest incidence and mortality rates of prostate cancer in the world. This warrants the need for targeted therapy as currently the most prevalent and effective option include chemotherapeutic drugs. Previous studies showed that an enriched sample extracted from the Jamaican Round Leaf yellow yam exhibited antiproliferative effects on DU145 prostate cancer cells. Based on the results obtained, this present study aims at exploring the underlying mechanism of action as well as the antimetastatic activities that the yam derived hexadecanoic acid may exhibit. Flow cytometry analysis was used to assess cell cycle arrest exhibited by hexadecanoic acid on the hormone insensitive DU145 prostate cancer cells. The western blot analysis was then utilized to determine the effects of the hexadecanoic acid enriched sample on cyclins in the cells. Transwell migration assays were then used to evaluate cell metastatic capabilities. Hexadecanoic acid enriched sample induced G1 S cell cycle arrest in the hormone insensitive prostate cancer cell line. Western blot assays also indicated that cell death was possibly induced through the cell cycle regulatory protein, cyclin D1 as its expression was downregulated in the treatment groups. Additionally, the observed metastatic inhibition of prostate cancer cells due to the action of the hexadecanoic acid in the wound healing assay may be attributed to a mechanism involving cyclin D1 as studies have indicated that abnormal Ccnd1 Cdk4 expression promotes tumor growth and metastasis. These results are substantial as it indicates a mechanistic pathway through which hexadecanoic acid is able to cause antiproliferative effects through a cell cycle arrest of hormone insensitive prostate cancer cell lines. Citation Format: Sasha-gay A. Wright, William Aiken, Helen Asemota, Kimberly Foster, Rupika Delgoda. Hexadecanoic acid mediated cell cycle arrest involving inhibition of cell migration [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2024; Part 1 (Regular Abstracts); 2024 Apr 5-10; San Diego, CA. Philadelphia (PA): AACR; Cancer Res 2024;84(6_Suppl):Abstract nr 1824.