Abstract
With an aim to comprehend the precise regulatory mechanism of dioscin against endometrial carcinoma(EC),we firstly extracted the components from Polygonatum sibiricum followed by identification and structural characterization.The anti-EC activity of dioscin was initially determined based on the inhibition of Ishikawa cell proliferation and tumor growth.The high-throughput sequencing data indicated that dioscin not only promoted apoptosis,including decrease of poly ADP-ribose polymerase(PARP)and B-cell lymphoma-2(Bcl-2)and increase of c-PARP and Bcl-2-associcated agonist of cell death(Bad),but also induced autophagy,including increase of autophagic lysosomes and LC3II/LC3I ratio.Mechanistic exploration suggested that dioscin induced autophagy and apoptosis through inhibition of PI3K/AKT/mTOR signaling pathway.Besides,the dioscin-regulated p53 pathway was mainly involved in autophagy induction.Furthermore,inhibition of Ishikawa cell autophagy was linked to dioscin-induced apoptosis.Our data suggest the immense potential of dioscin for the development of functional food for EC and related medical application.
基金项目
National Key Research&Development Program of China(2022YFF1100305)
National Natural Science Foundation of Ningxia Province(2021AAC02019)
National Natural Science Foundation of Ningxia Province(2022AAC03230)
Key research and development projects in Ningxia province(2021BEF02013)