HaCaT 세포의 산화 스트레스로 인한 세포자멸사에서 정향의 보호효과 (Protective effect of Caryophylli Flos on apoptosis caused by oxidative stressin HaCaT cells)

서지정보

· 발행기관 : 대한본초학회
· 수록지 정보 : 대한본초학회지 / 36권 / 5호 / 93 ~ 99페이지
· 저자명 : 박숙자

초록

Objective : Caryophylli Flos has been used in Korean medicine to relieve vomiting and pains caused by chills that make fluid circulation difficult. This study was designed to investigate the protective effect of ethanol extract of Caryophylli Flos (CF) in hydrogen peroxide (H2O2)-induced apoptotic cell death in human keratinocyte HaCaT cells.
Methods : CF was prepared by extracting 200 g of Caryophylli Flos in 2 L of ethanol for 48 h. Cell viability was measured by MTT assay, and the protein expression was monitored by Western blot analysis. Apoptosis was determined by terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL) assay. Reactive oxygen species (ROS) was measured using fluorescent dye, and reduced glutathione (GSH) was determined with a colorimetric commercial kit.
Results : CF protected HaCaT cells from cell death caused by oxidative stress after H2O2 treatment. H2O2 amplified generation of ROS and induced depletion of GSH, whereas these changes in ROS and GSH were inhibited by GF treatment. In addition, H2O2 resulted in apoptosis as assessed by TUNEL assay and the expression of apoptosis regulator proteins. However, cells treated with CF showed a decrease in TUNEL-positive cells and restored the reduced expression of procaspase-9, -3 and PARP.
Conclusion : This study showed cytoprotective effects of CF by anti-apoptotic activity while exerting antioxidative activity in H2O2-treated HaCaT cells. These results suggest that CF could be beneficial in skin damage caused by oxidative stress.

영어초록

Objective : Caryophylli Flos has been used in Korean medicine to relieve vomiting and pains caused by chills that make fluid circulation difficult. This study was designed to investigate the protective effect of ethanol extract of Caryophylli Flos (CF) in hydrogen peroxide (H2O2)-induced apoptotic cell death in human keratinocyte HaCaT cells.
Methods : CF was prepared by extracting 200 g of Caryophylli Flos in 2 L of ethanol for 48 h. Cell viability was measured by MTT assay, and the protein expression was monitored by Western blot analysis. Apoptosis was determined by terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL) assay. Reactive oxygen species (ROS) was measured using fluorescent dye, and reduced glutathione (GSH) was determined with a colorimetric commercial kit.
Results : CF protected HaCaT cells from cell death caused by oxidative stress after H2O2 treatment. H2O2 amplified generation of ROS and induced depletion of GSH, whereas these changes in ROS and GSH were inhibited by GF treatment. In addition, H2O2 resulted in apoptosis as assessed by TUNEL assay and the expression of apoptosis regulator proteins. However, cells treated with CF showed a decrease in TUNEL-positive cells and restored the reduced expression of procaspase-9, -3 and PARP.
Conclusion : This study showed cytoprotective effects of CF by anti-apoptotic activity while exerting antioxidative activity in H2O2-treated HaCaT cells. These results suggest that CF could be beneficial in skin damage caused by oxidative stress.

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