햄스터 협낭암 발암과점에서 iNOS 발현
(주)코리아스칼라
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- 2023.04.05
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- 2004.06
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서지정보
ㆍ발행기관 : 대한구강악안면병리학회
ㆍ수록지정보 : 대한구강악안면병리학회지 / 28권 / 2호
ㆍ저자명 : 임경수, 김수아, 안상건, 정문진, 류훈, 김도경, 윤정훈
한국어 초록
Nitric oxide (NO) plays a key role in the processes of inflammation and carcinogenesis. Three isoforms of NO 야mthase have been identified: endothelial 띠띠c oxide 와nth앓e (NOS), neuronal NOS, and inducible NOS (이OS). The purpose of this study was to investigate the characteristics of iNOS expression in 7, 12-dimethylbenz[alanthracene (DMBA)-induced hamster buccal pouch carcinogenesis. Sixty three outbred young (6-week-old) male Syrian golden hamsters were randomly divided into three groups: DMBA treated group (n=57) and non-treated (n=3), and mineral-oil treated group (n=3). No iNOS activity could be detected in the untreated or mineral oil-treated pouches. 80th cytoplasmic and nuclear stainings were observed in the DMBA-treated pouch kera띠lCX까es. There were iNOS expression 외so in the strorna1 cells. The mean values of iNOS expression in the epithelium increased gradually from control to dysplastic lesions and more to invasive squ따nous cell carcinoma. πle clifference between iNOS expr'않sion in the normal and that the dysplastic and carcinomatous lesions is statistically significant. The mean values of iNOS expression in the stroma increased gradually from control to dysplastic lesions and more to invasive squamous cell carcinoma. The difference between iNOS expression in the normal and that the carcinomatous lesions is statistica11y si맑， ificant. In conclusion, this study has demonstrated that iNOS is expressed in DMBA-induced hamster pouch carcinomas. πlis finding suggests that iNOS expression may be associated with the development of chemically induced oral carcmomas.
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