کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2776045 1152359 2006 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Mallory body forming cells express the preneoplastic hepatocyte phenotype
موضوعات مرتبط
علوم زیستی و بیوفناوری بیوشیمی، ژنتیک و زیست شناسی مولکولی بیوشیمی بالینی
پیش نمایش صفحه اول مقاله
Mallory body forming cells express the preneoplastic hepatocyte phenotype
چکیده انگلیسی

The livers of mice fed diethyl 1,4-dihydro-2,4,6,-trimethyl-3,5-pyridinedicarboxylate (DDC) for 10 weeks formed Mallory bodies (MBs) in clusters of hepatocytes. Mice withdrawn from DDC for 9 months developed liver tumors. In the present study, the phenotype of the hepatocytes that formed MBs and tumors was characterized. Immunoperoxidase and immunofluorescent stains were done on the DDC-treated mouse livers, as well as mouse liver tumors and a human hepatocellular carcinoma that formed MBs. Antibodies to markers of hepatocellular neoplasms such as α-fetoprotein (AFP), ubiquitin B (UbB) fatty acid synthase (FAS) and α2 macroglobulin (A2m) stained the MB forming cells positive. Quantitative real-time RT-PCR assay was used to measure AFP, UbB, FAS and GCP-3 A2m mRNA levels in the livers of DDC fed mice and the DDC-induced mouse liver tumors. The FAS, UbB, GPC-3 and AFP mRNA levels were significantly increased in the MB forming liver cells. The in vitro model of MB formation was used to correlate MB formation with gene and protein expression. Primary cultures of DDC-primed hepatocytes were compared with the controls. A2m and UbB expression increased in the primary cultures of DDC-primed hepatocytes when MBs formed. Thus, the tumor markers used to identify hepatocellular carcinoma were upregulated in cells forming MBs in vivo and in vitro, suggesting that MB forming cells express preneoplastic phenotypic features.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Experimental and Molecular Pathology - Volume 80, Issue 2, April 2006, Pages 109–118
نویسندگان
, , , , , ,