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The Combined Effects of Ginkgo Biloba Extracts and Aspirin on Viability of SK-N-MC, Neuroblastoma Cell Line in Hypoxia and Reperfusion Condition

  • Moon, Sung-Hwan (Department of Neurosurgery, Seoul Medical Center) ;
  • Lee, Yong-Jik (Division of Clinical Research, Medical Institute, Seoul Medical Center) ;
  • Park, Soo-Yong (Department of Neurosurgery, Seoul Medical Center) ;
  • Song, Kwan-Young (Department of Neurosurgery, Seoul Medical Center) ;
  • Kong, Min-Ho (Department of Neurosurgery, Seoul Medical Center) ;
  • Kim, Jung-Hee (Department of Neurosurgery, Seoul Medical Center)
  • Received : 2010.11.26
  • Accepted : 2011.01.07
  • Published : 2011.01.28

Abstract

Objective: 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. Methods: SK-N-MC cells were cultured with Dulbecco's Modified Eagle's Medium (DMEM) media in $37^{\circ}C$, 5% $CO_2$ incubator. The cells were cultured for 8 hours in non-glucose media and hypoxic condition and for 12 hours in normal media and $O_2$ 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. Results: 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. Conclusion: This study suggests that the combined treatments of Ginkgo biloba extracts and aspirin increase the regeneration of neuroblastoma cells injured by hypoxia and reperfusion.

Keywords

References

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