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Abstract Title:

[Cordycepin inhibits the proliferation and migration of human gastric cancer cells by suppressing lipid metabolism via AMPK and MAPK activation].

Abstract Source:

Xi Bao Yu Fen Zi Mian Yi Xue Za Zhi. 2022 Jun ;38(6):513-521. PMID: 35732609

Abstract Author(s):

Xin Zhang, Xuebing Zhou, Ming Gao, You Lyu, Ying Wang, Chunyu Yang, Yingshi Piao, Xiangshan Ren

Article Affiliation:

Xin Zhang

Abstract:

Objective To explore the inhibitory effect of cordycepin on the proliferation and migration of gastric cancer cells and its molecular mechanism. Methods MGC-803 cells were treated with 0, 25, 50, 100μmol/L of cordycepin and HGC-27 cells with 0, 5, 25, 50 μmol/L of cordycepin for 48 hours. The proliferation ability of MGC-803 and HGC-27 cells was detected by MTT assay and EdU assay; the colony formation ability of cells was detected by colony formation assay; both wound healing assay and cellmigration assay were applied to detect the cell migration ability of MGC-803 and HGC-27 cells; the chromatin agglutination was detected by Hoechst 33342 staining; the apoptosis of gastric cancer cells was detected by annexin V-FITC/PI double labeling combined with flow cytometry; Western blot was used to measure the protein expression levels of lipid metabolism-related proteins including sterol regulatory element binding transcription factor 1 (SREBF1), fatty acid synthase (FASN), and acetyl coA carboxylase 1 (ACC1), epithelial-mesenchymal transition (EMT)-related proteins including E-cadherin, vimentin, Snail, Slug, matrix metalloproteinase 2 (MMP2), MMP9, AMPK, and phosphorylated AMPK (p-AMPK), MAPK signaling pathway-related proteins including JNK, phosphorylated JNK (p-JNK), p38 MAPK, and p-p38 MAPK, and apoptosis-related proteins including cleaved caspase-9 (c-caspase-9), c-caspase-3, and cleaved poly (ADP-ribose) polymerase (c-PARP). Results Cordycepin significantly inhibited the proliferation, colony formation, and migration of gastric cancer cells. After cordycepin treatment, the karyopycnosis, karyorrhexis, and apoptosis rate of cancer cells increased, and the expressions of apoptosis-related proteins c-caspase-3, c-caspase-9, and c-PARP increased. The expression of E-cadherin increased, while the expressions of vimentin, Snail, Slug, SREBF1, FASN, ACC1, MMP2, MMP9 significantly decreased; the phosphorylation levels of AMPK, JNK and P38 proteins significantly increased. Conclusion Cordycepin inhibits the proliferation and migration of gastric cancer cells by suppressing the lipid metabolism and EMT process via activating AMPK and MAPK signaling pathway.

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