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백서에서 Dimethylnitrosamine에 의한 간경화의 유도와 간세포성장인자, 수용체인 c-Met, 그리고 형질전환인자-베타 1의 발현에 관한 연구
김욱환(Wook-Hwan Kim),이재호(Jae-Ho Lee),진윤미(Yoon-Mi Jin),조혜성(Hyeseong Cho),박혜리(Hye Lee Park),정민권(Min-Kwon Jung),곽연식(Yun-Sik Kwak),한상욱(Sang-Uk Han),왕희정(Hee-Jung Wang),이건욱(Kuhn-Uk Lee),김명욱(Myung-Wook Kim) 대한외과학회 1998 Annals of Surgical Treatment and Research Vol.55 No.4
사람의 간암 세포주에서 p53 유전자의 기능과 p21^(CIP1) 유전자 발현의 상관관계에 관한 연구
조혜성,임인경 아주대학교 의과학연구소 1996 아주의학 Vol.1 No.1
Expression of p21^(CIP1) gene has been known to be regulated by p53. We have examined whether basal expression of p21^(CIP1) is directly correlated to the status of p53 gene expression in seven human hepatoma cell lines. Six hepatoma cell lines except Hep3B expressed significant amount of p53 and Rb transcripts. However, only three of the six cell lines(HepG2, SK-HEP-1, HT-17) showed detectable basal expression of p21^(CIP1) transcripts, whereas three other Hub cell lines(Huhl, 4 and 7) originated from Japan did not. Neither p21^(CIP1) nor p53 transcripts were observed in the Hep3B cell line. There, was a considerable correlation between the status of functional p53 and p21^(CIP1) gene expression in these hepatoma cells, since loss of p21^(CIP1) gene expression was observed in the Huh7 cells which have mutated p53 and in the Huhl and Huh4 cells which have HBV containing HBX gene. Treatment of HepG2 hepatoma cells with 25 nM testosterone resulted in higher mitogenic activities by the ³H-thymidine incorporation assay. However, expression of p21^(CIP1) gene did not seem to be involved in mitogenic enhancement by testosterone in these cells.