Binding peptides for carcinoembryonic antigen (CEA)

   
   

The present invention provides binding moieties for CEA, which have a variety of uses wherever detecting, isolating or localizing CEA, and particularly CEA as opposed to cross-reactive antigens such as NCA, is advantageous. Particularly disclosed are synthetic, isolated polypeptides capable of binding CEA, which is overexpressed in adenocarcinomas of endodermally derived digestive system epithelia and fetal colon. Such polypeptides and disclosed derivatives are useful, e.g., as imaging agents for CEA-expressing tumors.

A invenção atual fornece moieties obrigatórios para CEA, que têm uma variedade dos usos wherever que detectam, isolando ou localizando CEA, e particularmente CEA ao contrário dos antígenos cruz-cross-reactive tais como NCA, é vantajosa. São divulgados particularmente os polypeptides sintéticos, isolados capazes de ligar CEA, que é overexpressed nos adenocarcinomas do epithelia endodermally derivado do sistema digestivo e de dois pontos fetal. Tais polypeptides e derivatives divulgados são úteis, por exemplo, como agentes da imagem latente para tumors de CEA-expressing.

 
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