Liver specific chimeric regulatory sequence and use thereof

Chemistry: molecular biology and microbiology – Animal cell – per se ; composition thereof; process of... – Method of detaching cells – digesting tissue or establishing...

Reexamination Certificate

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C435S455000, C435S370000, C435S366000, C536S024100

Reexamination Certificate

active

07972851

ABSTRACT:
The present invention relates to a chimeric regulatory sequence with liver cell specificity. The chimeric regulatory sequence includes a proximal regulatory sequence and a distal enhancer 5′ flanking region of human α-fetoprotein (AFP) gene. The chimeric regulatory sequence is useful in purified specific lineages, such as liver cells, from other cell lineages.

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Kazutada Watanabe, Akira Saito and Taiki Tamaoki, “Cell-specific Enhancer Activity in a Far Upstream Region of the Human α-Fetoprotein Gene”, The Journal of Biological Chemistry, vol. 262, No. 10, issue of Apr. 5, 1987, pp. 4812-4818.
Su et al. Selective killing of AFP-positive hepatocellular carcinoma cells by adeno-assocaited virus transfer of the herpes simplex virus thymidine kinase gene. Hum Gene Ther. vol. 7, No. 4, pp. 463-470, Mar. 1996.
Elyse R. Groupp, et al. Characterization of the Distal Alpha Fetoprotein Enhancer, a Strong, Long Distance, Liver-Specific Activator; The Journal of Biological Chemistry, Sep. 2, 1994; pp. 22178-22187; vol. 269, No. 35, U.S.A.

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