Abstract
Endometrial cancer (EC) is one of the three most common gynecological cancers in female groups. Gambogic acid (GA), a natural caged xanthone, exerts significantly antitumor effects on many cancers. However, its efficacy on EC and pharmacological mechanism of action remain marginal up to now. This study suggested that GA had significant inhibitory effects on EC in vitro and in vivo, and no toxicity to normal cells or mice. In detail, GA suppressed cell proliferation, induced cell apoptosis, and cell cycle arrest at G0/G1 stage, complied with the network pharmacology analysis, showed that the PI3K/Akt pathways were the most important signaling, and their protein and mRNA expression levels were confirmed by qRT-PCR and Western blot experiments. In all, our study first proved that GA could inhibit cell proliferation, induce cell apoptosis, and cell cycle arrest at G0/G1 stage via the PI3K/Akt pathways, so GA would be a good therapy for EC.
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