구강 불멸화 및 악성 구강 각화세포에서 일산화질소 유도 세포독성에 대한 Heme Oxygenase-1의 역할
(주)코리아스칼라
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서지정보
ㆍ발행기관 : 대한구강악안면병리학회
ㆍ수록지정보 : 대한구강악안면병리학회지 / 31권 / 3호
ㆍ저자명 : 이선경, 이준, 조이수, 신형식, 오효원, 이화정, 김희수, 손태형, 최희원, 이제중, 이종현, 이병업, 김민관, 신미란, 김은철
영어 초록
We have examined the effect of NO donor, S-nitl‘ oso-N-acetyl-DL-penicillamine(SNAP) on heme oxygenase-1 (HQ-l) ex pression in human oral immortalized & malignant keratinocytes, and investigated in the control of keratinocyte proliferation evidence tha t HO-1 cou ld be involved in a low dose of NO, NO inhibitor, HOinducer, and HO inhibitor medi ated cytoprotect ion against cytotoxi city induced by a high dose of NO Oral keratinocyte growth inhibitory or anti-proliferative effects were exerted by with SNAP and hemin in a dose- and cul tivation time dependent manner The level of HQ-1 protein was increased in all cell types after exposure hernin dose, and the hemin induced HQ-1 protein achieved at higher maximum level by 12 hrs in all kind of cells , The pretreatment of cells with 0, 2 μ M SNAP reduced 1 mM SNAP-induced death in IHOK and HN4 cells , These cytoprotective effects on high dose of NO induced HQ-1 expresion and cell ular toxicity were blocked by low dose of SNAP, HCB, and ZnPP IX supporting the involvement of HQ-1 in high dose NO induced growth arrest or cell death, But these cytoprotection pattern is different from immortalized and malignant keratinocytes , These results indirectly demonstrate that HQ-1 could be involved in cytoprotection by NO priming against high dose NO induced cytotoxicity in immortalized and maigla nt oral keratinocytes, Thus, HQ-1 might be an important cellular target of NO donor, with clinical implications for the pre vention of inJlammatory di seases and anti-tumor immunity
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