Cell culture and method for screening for a compound useful...

Chemistry: molecular biology and microbiology – Measuring or testing process involving enzymes or... – Involving nucleic acid

Reexamination Certificate

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C435S007210, C435S008000, C435S370000, C435S373000

Reexamination Certificate

active

07745120

ABSTRACT:
The present invention provides a cell-culturing model and a method for screening compounds which can be applied in treating or preventing hepatic cirrhosis. The cell culturing model comprises a population of hepatocytes and hepatic stellate cells (HSCs) derived from co-culturing, and at least one population of the cells comprises a nucleotide sequence fragment of a reporter gene and a cell specific regulatory sequence. The cell-culturing model of the present invention can be applied in high throughput screening for effective compounds of medication, and also in understanding the functional mechanism of the effective compounds.

REFERENCES:
patent: 200424215 (2004-11-01), None
patent: 02/48318 (2002-06-01), None
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Prakinson et al., The effects of gender, age, ethnicity, and liver cirrhosis on cytochrome P450 enzyme activity in human liver microsomes and inducibility in cultured human hepatocytes Toxicology and Applied Pharmacology vol. 199, Issue 3, Sep. 15, 2004, pp. 193-209.
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Svegliati-Baroni G,et al., Intracellular signaling pathways involved in acetaldehyde-induced collagen and fibronectin gene expression in human hepatic stellate cells. Hepatology. May 2001;33(5):1130-40.
Armendariz-Borunda J, et al., Transcriptional mechanisms of type I collagen gene expression are differentially regulated by interleukin-1 beta, tumor necrosis factor alpha, and transforming growth factor beta in Ito cells.J Biol Chem. Jul 15, 1992;267(20):14316-21.
Apolinar Maya-Mendoza, et al; Gene Positional Changes Relative to the Nuclear Substructure During Carbon Tetrachloride-Induced Hepatic Fibrosis in Rats; Journal of Cellular Biochemistry; 2004; p. 1084-p. 1098.

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