A transgenic model of colon cancer and anal cancer

C - Chemistry – Metallurgy – 12 – N

Patent

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Details

C12N 5/00 (2006.01) A61K 49/00 (2006.01) C07K 14/47 (2006.01) C12N 15/00 (2006.01) C12N 15/85 (2006.01)

Patent

CA 2284735

The present invention provides human involucrin (hINV) sequences having tissue specific and cell type specific promoter activity. The sequences provided herein direct expression to suprabasal cells of stratifying epithelia. The invention further provides trangenic animals which contain an hINV promoter sequence which directs the expression of human papillomavirus 16 oncogenes. These animals display cervical and epidermal hyperplasias as well as cancer of the trachea, esophagus, colon, epidermis, anus/rectum, lymph nodes, spleen and lung. The animals of the invention provide a useful model for screening potential anti-neoplastic compounds, carcinogens, and co-carcinogens for a number of cancers.

La présente invention concerne des séquences de l'involucrine humaine (hINV) déployant une activité de promoteur spécifique de tissu et spécifique de type de cellule. Les séquences de la présente invention dirigent l'expression vers les cellules supra-basales de l'épithélium stratifié. L'invention se rapporte en outre à des animaux transgéniques contenant une séquence promoteur hINV qui dirige l'expression des oncogènes du papillomavirus humain 16. Lesdits animaux présentent des hyperplasies cervicales et épidermiques ainsi que des cancers de la trachée, de l'oesophage, du côlon, de la peau, de l'anus/rectum, des ganglions lymphatiques, de la rate et du poumon. Les animaux de la présente invention constituent un modèle qui est utilisé pour cribler des composés anti-néoplastiques, carcinogènes et co-carcinogènes potentiels pour une variété de cancers.

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