Rapid screening mutagenesis and teratogenesis assay

G - Physics – 01 – N

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167/44, 150/8.5

G01N 33/53 (2006.01) C12Q 1/00 (2006.01) C12Q 1/02 (2006.01) C12Q 1/28 (2006.01) C12Q 1/34 (2006.01) C12Q 1/66 (2006.01) C12Q 1/68 (2006.01) G01N 33/00 (2006.01)

Patent

CA 2003415

RAPID SCREENING MUTAGENESIS AND TERATOGENESIS ASSAY Abstract of the Invention A rapid, sensitive, and quantitative method and assay system using transgenic animal cells and adult or embryonic transgenic animals to rapidly screen compounds for mutagenic or teratogenic activity. Each cell from a cell culture, a differentiated tissue from an animal or an animal embryo contains a target gene and a reporter gene, both including an animal promoter/enhancer, a coding sequence and a transcription termination signal, so that they are capable of expression in animal cells. The product of the target gene is capable of regulating expression of the reporter gene through interaction with a regulatory sequence in the reporter gene. In the preferred embodiment, the target gene lacI (lac repressor) is coupled to the reporter gene lacZ encoding beta-galactosidase, which is easily detectable by cytochemical or histochemical procedures. When the animal cell is exposed to a compound causing a mutation either altering expression of the target gene or altering the operator of the reporter gene, the reporter gene is expressed.

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