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Journal of Korean Neurosurgical Society 2011;49(1): 13-19.
doi: https://doi.org/10.3340/jkns.2011.49.1.13
The Combined Effects of Ginkgo Biloba Extracts and Aspirin on Viability of SK-N-MC, Neuroblastoma Cell Line in Hypoxia and Reperfusion Condition.
Sung Hwan Moon, Yong Jik Lee, Soo Yong Park, Kwan Young Song, Min Ho Kong, Jung Hee Kim
1Department of Neurosurgery, Seoul Medical Center, Seoul, Korea.
2Division of Clinical Research, Medical Institute, Seoul Medical Center, Seoul, Korea. lyj2333@hanmail.net
The purpose of this study is to investigate the combined effects of ginkgo biloba extract, ginkgolide A and B and aspirin on SK-N-MC, human neuroblastoma cell viability and mRNA expression of growth associated protein43 (GAP43), Microtubule-associated protein 2 (MAP2), B-cell lymphoma2 (Bcl2) and protein53 (p53) gene in hypoxia and reperfusion condition.
SK-N-MC cells were cultured with Dulbecco's Modified Eagle's Medium (DMEM) media in 37degrees C, 5% CO2 incubator. The cells were cultured for 8 hours in non-glucose media and hypoxic condition and for 12 hours in normal media and O2 concentration. Cell survival rate was measured with Cell Counting Kit-8 (CCK-8) reagent assay. Reverse transcriptase polymerase chain reaction (RT-PCR) was used to estimate mRNA levels of GAP43, MAP2, Bcl2, and p53 genes.
The ginkgolide A and B increased viable cell number decreased in hypoxic and reperfused condition. The co-treatment of ginkgolide B with aspirin also increased the number of viable cells, however, there was no additive effect. Although there was no increase of mRNA expression of GAP43, MAP2, and Bcl2 in SK-N-MC cells with individual treatment of ginkgolide A, B or aspirin in hypoxic and reperfused condition, the co-treatment of ginkgolide A or B with aspirin significantly increased GAP43 and Bcl2 mRNA levels. In MAP2, only the co-treatment of ginkgolide A and aspirin showed increasing effect. The mRNA expression of p53 had no change in all treating conditions.
This study suggests that the combined treatments of Ginkgo biloba extracts and aspirin increase the regeneration of neuroblastoma cells injured by hypoxia and reperfusion.
Key Words: Ginkgo biloba extract; Aspirin; GAP43; MAP2; Bcl2; p53
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