4.5 Article

Syringic acid regulates suppression of the STAT3/JNK/AKT pathway via inhibition of human ovarian teratoma cancer cell (PA-1) growth-in vitro study

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Publisher

WILEY
DOI: 10.1002/jbt.22776

Keywords

apoptosis; cell proliferation; ovarian cancer; syringic acid; STAT3

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Syringic acid (SRA) exhibits proapoptotic activities on ovarian cancer cells, suppressing cell proliferation and migration through regulation of cell cycle and apoptosis-related proteins.
Among the various gynaecological cancers, ovarian cancer (OC) is the third most severe cancer worldwide affecting women. Syringic acid (SRA) exhibits several hypoglycaemia, antioxidant, and anti-inflammatory properties. The study aimed to examine the proapoptotic activities of SRA on OC in PA-1 cells. SRA has been shown to decrease cell viability, increase the rate of cell apoptosis, and cause mitochondrial membrane potential to dissipate and induce over-accumulation of intracellular reactive oxygen species in PA-1 cells after 24 h of exposure. We examined the anticancer efficacy of SRA with its responsible molecular mechanism in the PA-1 cell lines of human OC. In a dose-dependent manner, SRA substantially suppressed cell proliferation and migration. SRA exhibited significant downregulation of cyclins including CDK2, CDK4, and Cyclin D1 responsible for cell-cycle regulation. The apoptosis-mediated anticancer activity was mainly mediated through caspase-3, caspase-8, caspase-9 and Bax upregulation, and Bcl-2 downregulation. We report that SRA significantly inhibits the expression of signal transducer and activator of transcription 3 (STAT3), c-Jun N-terminal kinase (JNK), P65, and protein kinase B (AKT) pathways. These findings depict the effective inhibition of STAT3, p38, and AKT expression by SRA, making it a potential therapeutic candidate for human OC.

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