An anti-cancer cytotoxic monoclonal antibody

C - Chemistry – Metallurgy – 07 – K

Patent

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Details

C07K 16/30 (2006.01) A61K 39/395 (2006.01) A61K 47/48 (2006.01) A61K 51/10 (2006.01) A61P 35/00 (2006.01) A61P 37/04 (2006.01) C07K 16/28 (2006.01) C07K 16/46 (2006.01) C12N 5/16 (2006.01) C12P 21/08 (2006.01) G01N 33/574 (2006.01) G01N 33/577 (2006.01)

Patent

CA 2712535

The present invention relates to a method for producing cancerous disease modifying antibodies (CDMAB). Anti--bodies generated in mice, upon immunization with malignant cells of human lung adenocarcinoma tumour tissue are screened for cytotoxicity against a variety of cancer cell lines. An anti-cancer cytotoxic monoclonal antibody (mAb) is isolated, produced by the hybridoma AR1 04A1666.2.8 deposited with IDAC as Accession Number 181207- 01, which is cytotoxic to human lung cancer cell lines, and reduces tumour burden in a human breast cancer xenograft model. The mAb also binds to several cancer cell lines but is not cytotoxic in a non-cancerous cell line. This mAb can be used to treat primary tumours and tumour metastases. This mab can be conjugated to toxms, enzymes, radioactive compounds, and hematogenous cells.

L'invention concerne un procédé servant à produire des anticorps modifiant la maladie cancéreuse (CDMAB). On crible les anticorps générés chez des souris lors de l'immunisation par des cellules malignes du tissu tumoral de l'adénocarcinome pulmonaire humain afin de déterminer une cytotoxicité contre une variété de lignées cellulaires cancéreuses. On a isolé un anticorps monoclonal cytotoxique anticancer (mAb) produit par l'hybridome AR1 04A1666.2.8 déposé à l'IDAC sous le numéro d'accès 181207-01 et qui présente une cytotoxicité contre les lignées cellulaires du cancer pulmonaire humain, tout en réduisant la charge tumorale dans un modèle humain d'allogreffe du cancer du sein. L'anticorps mAb se lie également à plusieurs lignées cellulaires du cancer mais n'est pas cytotoxique dans une lignée cellulaire non cancéreuse. On peut utiliser mAb afin de traiter des tumeurs primaires et des métastases tumorales. On peut conjuguer mAb à des toxines, des enzymes, des composés radioactifs ou des cellules hématogènes.

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