Peptides selectively lethal to malignant and transformed...

C - Chemistry – Metallurgy – 07 – K

Patent

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C07K 19/00 (2006.01) A61K 38/10 (2006.01) A61K 38/16 (2006.01) A61K 38/17 (2006.01) A61P 35/00 (2006.01) C07K 7/08 (2006.01) C07K 14/47 (2006.01) A61K 38/00 (2006.01)

Patent

CA 2477878

The present invention provides peptides corresponding to all or a portion of amino acid residues 12-26 of human p53 protein, which peptides are lethal to malignant or tranformed cells when fused to a membrane-penetrating leader sequence. The subject peptides are thus useful in treating neoplastic disease in an animal, preferably a human. Also provided are pharmaceutical compositions comprising the subject peptides admixed with a pharmaceutical acceptable carrier. Methods of treating neoplastic disease in a patient by administering a subject peptide fused at its carboxy terminal end to a membrane-penetrating leader sequence are also provided.

L'invention concerne des peptides correspondant à tous ou à une partie des résidus d'acides aminés 12-26 de la protéine p53 humaine, lesquels peptides étant létaux pour des cellules transformées ou malignes, lorsqu'elles sont fusionnées à une séquence de tête de pénétration membranaire. Les peptides de l'invention sont ainsi utiles dans le traitement d'une maladie néoplastique chez l'animal, de préférence chez l'humain. L'invention concerne des compositions pharmaceutiques contenant lesdits peptides mélangés à un support pharmaceutiquement acceptable. L'invention concerne des méthodes de traitement d'une maladie néoplastique chez un patient, lesquelles méthodes consistant à administrer un peptide fusionné à son extrémité carboxy terminale à une séquence de tête de pénétration membranaire.

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