신경세포 분화와 산화스트레스에서 추출 조건에 따른 가물치 추출물의 효과 = Effect of Channa Argus Extracts From Different Extraction Processes on Neuronal Cell Differentiation and Oxidative Stress

국문 초록 (Abstract)

본 연구에서는 가물치(Channa argus) 추출물의 신경세포 분화와 산화 스트레스에서의 효능을 분석하기 위하여 녹차와 효소를 이용한 다양한 추출 방법(상온 추출물, RE; 녹차 상온 추출물, GRE; 효소 상온 추출물, ERE; 녹차 효소상온 추출물, GERE)을 사용하여 제조 된 추출물의 아미노산 조성과 항산화 활성을 비교 분석하였고, 신경성장인자(NGF) 유도 신경세포 분화 및 과산화수소 처리에 의해 유도된 PC12 세포 독성에 대한 보호효과를 규명하고자 하였다. 총 아미노산 함량은 RE 및 GRE보다 효소 추출물인 ERE 및 GERE에서 훨씬 더 높았다. 효소 가수 분해물 (ERE 및 GERE)에서 ABTS 라디칼 소거 활성은 RE 및 GRE보다 높았다. 또한, RE와 ERE는 PC12 세포에서 neuronal growth factor (NGF) 매개 신경 돌기 성장뿐만 아니라 growth associated protein (GAP)-43 및 synapsin-1의 발현을 현저하게 향상 시켰다. 과산화수소(H₂O₂)에 의해 손상된 PC12 세포에 4가지 유형의 Channa argus 추출물을 첨가 한 후 PC12 세포의 생존율을 측정하였다. PC12 세포의 생존율은 RE, GRE, GERE에서 각각 77.5±1.9%, 84.0±0.8%, 81.1±0.9%이였다. 이러한 세포 생존율은 H₂O₂ 만을 처리 한 음성 대조군(70.0±2.0%)에 비해 더 높았다. H2O2 처리에 의해 유도 된 세포 독성도 RE, GRE 및 GERE 처리에 대한 반응으로 상당히 완화되었다. 종합하면, Channa argus 추출물은 산화 스트레스와 신경 손상을 감소시키는 기능성 물질로 유용하다는 것을 시사하며, 향후 이들 소재를 활용한 다양한 기능성 제품의 개발이 필요할 것으로 판단된다.

다국어 초록 (Multilingual Abstract)

The present study provides in vitro evaluations of snakehead (Channa argus) extracts on neuronal cell differentiation and oxidative stress. This study was conducted to analyze the constituents of the extracts prepared using different extraction methods (room temperature extract, RE; green tea room temperature extract, GRE; enzyme room temperature extract, ERE; green tea enzyme room temperature extract, GERE) and to compare their biochemical properties. The contents of total amino acids in ERE and GERE were much higher than RE and GRE from Channa argus. ABTS radical scavenging activities in enzymatic hydrolysates (ERE and GERE) were higher than those of RE and GRE. In addition, RE and ERE caused a marked enhancement of the nerve growth factor-mediated neurite outgrowth from PC12 cells and the expressions of growth-associated protein (GAP)-43 and synapsin-1. Four types of Channa argus extract were added to PC12 cells damaged by hydrogen peroxide (H₂O₂), after which the survival rate of PC12 cells was measured. The survival rates of PC12 cells were 77.5±1.9%, 84.0±0.8%, 70.4±1.5%, and 81.1±0.9% at RE, GRE, ERE, and GERE, respectively. These cell survival rates were higher than that of the negative control group (70.0±2.0%) treated only with H₂O₂. Cellular toxicities induced by treatment with H₂O₂ were also significantly alleviated in response to treatment with RE, GRE, and GERE. Taken together, these results suggest that Channa argus extracts are helpful as a functional material to decrease oxidative stress and neuronal damage.

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