Abstract: An object of the present invention is to provide a radioactive metal anti-cadherin antibody which is highly accumulated specifically in cancer tissue. Another object is to provide a cancer therapeutic agent having high anti-cancer effect and safety and a cancer diagnostic agent. The radioactive metal-labeled anti-cadherin antibody is obtained by binding a radioactive metallic element to an anti-cadherin antibody via a metal-chelating reagent.

Abstract: The present inventors successfully introduced genes into stem cells of airway epithelial tissues using simian immunodeficiency virus vectors pseudotyped with F and HN, which are envelope glycoproteins of Sendai virus. Gene transfer into airway epithelial tissue stem cells using a vector of the present invention is useful for gene therapy of genetic respiratory diseases such as cystic fibrosis. Furthermore, it is possible to select respiratory organs such as the lungs as production tissues for providing proteins that are deficient due to genetic diseases.

Abstract: The present invention provides agents for treating blood coagulation abnormalities, which contain as an active ingredient a lentiviral vector carrying a blood coagulation factor gene operably linked to a promoter which induces platelet-specific expression. Agents for treating hemophilia A or hemophilia B are provided by application of the gene encoding Factor VIII or Factor IX. Blood coagulation abnormalities can be treated by gene therapy by infecting hematopoietic stem cells or such with the therapeutic agents of the present invention.