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국회도서관 홈으로 정보검색 소장정보 검색

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동의어 포함

초록보기

Reactive oxygen species(ROS)에 의한 산화적 손상은 냉동보존 과정과 체외 배양과정 중 세포 생존률 감소의 주된 요인 중 하나이며, 특히 줄기세포의 경우 냉동보존 후 쉽게 분화하거나 사멸하는 경향이 있음이 잘 알려져 있다. 따라서 본 연구는 체외 배양된 인간 조혈모 줄기세포의 냉동보존 시 선별된 항산화제를 처리하여 항산화제가 줄기세포의 생존 및 자동분화에 미치는 영향을 조사하고자 하였다. 해동 후 세포의 생존률은 α?tocopherol과 ascorbic acid처리군이 대조군(62.7±8.0%)에 비해 높은 생존률을 보였고 그 중 150uM α?tocopherol처리군(70.5±7.0%)이 가장 높은 생존률을 보였다. 세포막 손상은 대조군 및 실험군 모두에서 나타나지 않았다. 자동분화율에 있어서는 모든 실험군에서 대조군(10.1±1.6%)과 유의한 차이를 보이지 않았으나, 150uM α?tocopherol(7.3±2.6%)처리군에서 가장 낮은 자동분화율을 나타내었다. 본 실험의 결과 항산화제는 인간 조혈모 줄기세포 냉동보존 시 생존율을 향상 시키며 특히 α?tocopherol은 인간 조혈모 줄기세포의 냉동보존 과정 동안 효과적인 항산화제로 작용할 것이라 생각된다.

Oxidative damage resulted from reactive oxygen species(ROS) is one of the main causes for the decrease of the viability during in vitro culture and cryopreservation process. This experiment was performed to determine the effects of antioxidants on the human hematopoietic stem cell(HSC) during cryopreservation procedure. HSCs cultured in vitro with or without antioxidants were frozen and then examined for stem cell potential after thawing. The cell viability of thawed HSC was increased in αtocopherol and ascorbic acid treatment group compared to control group(62.7±8.0%) and it was higher in 150uM αtocopherol treatment group(70.5±7.0%). No significant difference was observed in the membrane integrity in all groups. In auto-differentiation rate, no significant difference was appeared in all groups, but was lower in 150uM αtocopherol(7.3±2.6%) compared to control group(10.1±1.6%).These results demonstrate that treatment of antoxidants improves the efficiency of cryopreservation for HSC and αtocopherol may be considered effective antioxidant for the protective effect on HSC.

권호기사

권호기사 목록 테이블로 기사명, 저자명, 페이지, 원문, 기사목차 순으로 되어있습니다.
기사명 저자명 페이지 원문 목차
배아줄기세포 유래 신경계세포에서의 세포사멸 연구와 그 응용 이철상 pp.1-8

A limit cycle model about the entrainment of circadian rhythm Donchan Choi pp.9-18

Carbohydrate metabolism in preimplantation stage embryos and the role of metabolites Yong-Pil Cheon pp.19-30

Differentiation of dopaminergic and cholinergic neurons from mesenchymal-like stem cells derived from the adipose tissue In-Kyung Hong ; Na Hee Jeong ; Ju Ran Kim ; Byung-Rok Do ; Hea Kwon Kim ; Sung Goo Kang pp.31-39

Ultrastructural studies of oogenesis and oocyte degeneration in female Ruditapes philippinarum (Bivalvia: Veneridae) from Gomso bay, Korea Ki-Young Lee ; Ee-Yung Chung pp.41-49

배지에 따른 제브라피쉬(Danio rerio) 배아 유래세포의 성장 효과에 관한 연구 이기영 ; 김종연 ; 조수근 pp.51-56

Age-related changes in luteinizing hormone and testosterone levels in Korean men Sung-Ho Lee ; Ryun-Sup Ahn ; Hyuk-Bang Kwon pp.57-66

인간 조혈모 줄기세포의 냉동보존에 미치는 항산화제의 영향 김응배 ; 홍순갑 ; 도병록 ; 김경숙 ; 이준영 pp.67-76

LIF를 첨가한 배양액을 이용한 할구 유래 생쥐 배아줄기세포주의 확립 조재원 ; 임천규 ; 고덕성 ; 강희정 ; 전진현 pp.77-86

Human embryonic stem cell-derived neuroectodermal spheres revealing neural precursor cell properties Hyo-Won Han ; Janghwan Kim ; Man-Jong Kang ; Seong-Ju Moon ; Yong-Kook Kang ; Deog-Bon Koo ; Yee Sook Cho pp.87-95

미성숙 암컷 흰쥐 시상하부-뇌하수체 축 상의 유전자 발현에 미치는 Vinclozolin 투여 효과 이우철 ; 이성호 pp.97-105

점망둑(Chasmichthys dolichognathus)의 성숙기 난모세포에서의 C_21_-스테로이드 생성 백혜자 pp.107-112

참고문헌 (25건) : 자료제공( 네이버학술정보 )

참고문헌 목록에 대한 테이블로 번호, 참고문헌, 국회도서관 소장유무로 구성되어 있습니다.
번호 참고문헌 국회도서관 소장유무
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