Abstract: This invention provides for recombinant single chain antibodies capable of specifically binding to a Lewis.sup.Y -related carbohydrate antigen and fusion proteins comprising these antibodies. More particularly, the invention provides for humanized chain Fv regions of the monoclonal antibodies B1, B3 and B5 and fusion proteins incorporating these humanized antibodies. The antibodies may comprise humanized variable heavy (V.sub.H) chains, humanized variable light (V.sub.L) chains, or both. The invention also provides for DNA sequences encoding the various humanized antibodies. In addition, the invention provides for methods of detecting cells bearing a Lewis.sup.Y antigen in a patient and for methods of killing or inhibiting the growth of cells bearing a Lewis.sup.Y antigen in a patient.

Abstract: The present invention provides for vectors carrying a cDNA containing the entire coding region of the human multidrug resistance gene (MDR1) and for a method for introducing MDR1 cDNA into cells thereby inducing a multidrug resistant phenotype.

Abstract: The present invention provides for vectors carrying a cDNA containing the entire coding region of the human multidrug resistance gene (MDR1) and for a method for introducing MDR1 cDNA into cells thereby inducing a multidrug resistant phenotype.

Abstract: The subject invention relates to methods for reducing tumor cell growth in a mammal by administering compositions which include an antibody having the binding specificity of a monoclonal antibody selected from the group comprising one of those referred to as B1, B3 or B5 conjugated to a toxin, radionuclide or drug.

Abstract: The invention provides a novel treatment of cancer using a monoclonal antibody that recognizes cell surface antigens present on a number of tumor cells, including ovarian, esophageal and cervical carcinomas. A preferred monoclonal antibody is secreted by a hybridoma deposited with the ATCC and has Accession NO. HB 10570.

Abstract: The cDNA and amino acid sequences for a cellular apoptosis susceptibility (CAS) protein are used to detect expression and amplification of the CAS gene in normal and cancer cells. An antisense CAS gene sequence introduced into living cells inhibits CAS protein activity and thus prevents or inhibits apoptosis in the cells.

Abstract: A target-specific, cytotoxic, recombinant Pseudomonas exotoxin is described. Such toxins are made by inserting specific recognition molecules at specific cloning sites in at least domain III near the carboxyl terminus of the PE molecule. Various modifications of the carboxyl terminus of the PE molecule to increase cytotoxicity are set forth. Multifunctional, recombinant, cytotoxic fusion proteins containing at least two different recognition molecules are provided for killing cells expressing receptors to which the recognition molecules bind with specificity. Methods for producing novel recombinant PE molecules with specific properties are described.

Abstract: Improved Pseudomonas exotoxins of low animal toxicity and high cytocidal activity are described. Substitution of positively charged amino acid residues with an amino acid residue without a positive charge provides markedly changed exotoxins. Conjugation of the new exotoxins with suitable targeting agents provides cytocidal specificity for killing desired cellular entities.

Abstract: The present invention provides a method and compositions for specifically delivering an effector molecule to a tumor cell. The method involves providing a chimeric molecule that comprises an effector molecule attached to a targeting molecule that specifically binds an IL-13 receptor and contacting a tumor cell with the chimeric molecule.

Abstract: The subject invention relates to monoclonal antibodies and uses thereof. In particular, the invention relates to three monoclonal antibodies, referred to as B1, B3, and B5, which are useful in the treatment and diagnosis of many forms of cancer.

Abstract: This invention provides for recombinant single chain antibodies capable of specifically binding to a Lewis.sup.Y -related carbohydrate antigen and fusion proteins comprising these antibodies. More particularly, the invention provides for single chain Fv regions of the monoclonal antibody B3. The invention also provides for a method of improving the binding affinity of antibodies lacking a serine at position 95 of the V.sub.H region that involves mutating position 95 to a serine.

Abstract: A chimeric gene directing the synthesis of hybrid recombinant fusion protein in a suitable expression vector has been constructed. The fusion protein possesses the property of selective cytotoxicity against specific virus-infected cells. A CD4(178)-PE40 hybrid fusion protein has been made for selectively killing HIV-infected cells.

Abstract: Monoclonal antibody K1 binds to an epitope on the surface of cells of some human tumors, but not to many important normal tissues. Unlike similar antigenic sites such as CA125, this epitope is not shed into the plasma of patients with mesothelioma, e.g. with ovarian cancer. Since the K1 monoclonal antibody is therefore not neutralized by circulating antigen immediately upon injection into the bloodstream, and since K1 allows efficient entry of coupled toxins into cells, the K1 monoclonal antibody can be used in the diagnosis of mesotheliomas.

Abstract: Improved Pseudomonas exotoxins of low animal toxicity and high cytocidal activity are described. Substitution of positively charged amino acid residues with an amino acid residue without a positive charge provides markedly changed exotoxins. Conjugation of the new exotoxins with suitable targeting agents provides cytocidal specificity for killing desired cellular entities.

Abstract: A target-specific, cytotoxic, recombinant Pseudomonas exotoxin is described. Such toxins are made by inserting specific recognition molecules at specific cloning sites in at least domain III near the carboxyl terminus of the PE molecule. Various modifications of the carboxyl terminus of the PE molecule to increase cytotoxicity are set forth. Multifunctional, recombinant, cytotoxic fusion proteins containing at least two different recognition molecules are provided for killing cells expressing receptors to which the recognition molecules bind with specificity. Methods for producing novel recombinant PE molecules with specific properties are described.

Abstract: A chimeric gene directing the synthesis of hybrid recombinant fusion protein in a suitable expression vector has been constructed. The fusion protein possesses the property of selective cytotoxicity against specific virus-infected cells. A CD4(178)-PE40 hybrid fusion protein has been made for selectively killing HIV-infected cells.

Abstract: The invention provides novel monoclonal antibodies and the hybridomas that secrete them. The antibodies can be used for the diagnosis of a number of cancers, such as ovarian, esophageal and cervical carcinomas. A preferred antibody is secreted by a hybridoma deposited with the ATCC and has Accession No. HB 10570.

Abstract: The subject invention relates to monoclonal antibodies and uses thereof. In particular, the invention relates to three monoclonal antibodies, referred to as B1, B3, and B5, which are useful in the treatment and diagnosis of many forms of cancer.

Abstract: A chimeric gene directing the synthesis of hybrid recombinant fusion protein in a suitable expression vector has been constructed. The fusion protein possesses the property of selective cytotoxicity against specific virus-infected cells. A CD4(178)-PE40 hybrid fusion protein has been made for selectively killing HIV-infected cells.

Abstract: Gene therapy utilizing an MDR1 linked fusion coding sequence has been disclosed. ADA activity has been introduced into cells using MDR1 linked fusion gene.