Fisetin induces apoptosis in Huh-7 cells via downregulation of BIRC8 and Bcl2L2.
This study aimed to investigate the effects of fisetin, a common dietary natural flavonoid, on apoptosis of Huh-7 cells. The MTT assay was used to evaluate the reduction of cell viability. In the DNA fragmentation assay and comet assay, fisetin-induced DNA damage was visible as a formation of DNA fragmentation and comet tails. Fisetin also induced intracellular accumulation of reactive oxygen species. Two-dimensional gel electrophoresis was performed to evaluate protein expression in fisetin-treated and control cells, and Baculoviral IAP repeat-containing protein 8 (BIRC8) and apoptosis regulator Bcl-W (Bcl2L2) were identified using matrix-assisted laser desorption/ionization time-of-flight mass spectrometry. Their expression was confirmed by western blotting. The anticancer effect of fisetin in Huh-7 cells may result from the down regulation of BIRC8 and the Bcl2L2.
Department of Biological Science, Gachon University of Medicine and Science, 534-2 Yeonsu-dong, Yeonsu-gu, Incheon 406-799, Republic of Korea.
Ju Yeon
JY
Kim
Young Keul
YK
Jeon
Won
W
Jeon
Myeong Jin
MJ
Nam
D000970:Antineoplastic Agents / Q000494:pharmacology*; D000972:Antineoplastic Agents, Phytogenic; D017209:Apoptosis / Q000187:drug effects*; D051017:Apoptosis Regulatory Proteins / Q000096:biosynthesis* / Q000235:genetics; D015153:Blotting, Western; D045744:Cell Line, Tumor; D002470:Cell Survival / Q000187:drug effects; D020552:Comet Assay; D053938:DNA Fragmentation / Q000187:drug effects; D015180:Electrophoresis, Gel, Two-Dimensional; D005419:Flavonoids / Q000494:pharmacology*; D044948:Flavonols; D006801:Humans; D051034:Inhibitor of Apoptosis Proteins / Q000096:biosynthesis* / Q000235:genetics; D013058:Mass Spectrometry; D017382:Reactive Oxygen Species / Q000378:metabolism
D000970:Antineoplastic Agents; D000972:Antineoplastic Agents, Phytogenic; D051017:Apoptosis Regulatory Proteins; C491073:BCL2L2 protein, human; C430870:BIRC8 protein, human; D005419:Flavonoids; D044948:Flavonols; D051034:Inhibitor of Apoptosis Proteins; D017382:Reactive Oxygen Species; C017875:fisetin