Abstract: The present invention describes specific therapeutic compositions, which increase the efficacy of the therapeutic treatment using monoclonal antibodies against the Epidermal Growth Factor Receptor (EGFR) in a combination with type I IFNs.

Abstract: The present invention is related to pharmaceutical compositions based on vaccines and monoclonal antibodies that neutralize the Interleukin-2, which are useful in the treatment of tumors. Particularly the present invention is related to therapeutic formulations able to increase the immunogenicity of the IL-2 conjugated to the carrier protein P64k from the neisseria meningitidis in montanide ISA 51 adjuvant for the induction of IL-2 neutralizing autoantibodies and the effective methods for the treatment of tumors, including breast cancer and melanoma. Furthermore, the present invention is related to therapeutic combination of the IL-2 based vaccine with other cancer vaccines based on specific tumor antigens or tumor growth factors, as well as chemotherapeutics agents or radiotherapy of standard use for cancer treatment.

Abstract: The present invention relates to a method of recovering mammalian cell clones adapted to serum and protein-free media, the procedure includes a two-stage adaptation process to grow in that condition. The present invention discloses a critical protein concentration interval in which cells must grow in order to gain the capacity to survive in serum and protein-free condition, once the cells have grown at the critical interval concentrations, subsequent decreases of the concentration will affect neither viability nor cellular doubling time. The critical protein concentration interval is cell line specific. Furthermore, in the present invention mammalian cells clones are disclosed, which are stable in serum- and protein-free media for at least 40 generations; additionally, clones disclosed in the present invention express a recombinant product.

Abstract: Novel recombinant antibodies from murine antibody IOR C5 produced by the hybridoma deposited with the ECCC 97061101. The recombinant antibodies were obtained using recombinant DNA technology and are characterized in that they recognize antigen ior C2. The recombinant antibodies are specifically chimeric antibody, humanized antibody, and single chain Fv fragment. The chimeric antibody contains the variable domains of the murine immunoglobuline and the constant regions of the human immunoglobuline. The humanized antibody contains the constant regions of human immunoglobuline and has been specifically modified in the murine frameworks regions (FRs) and within the latter, in those areas that may result in an antigenic site for cells T. The Fv fragment contains the variable domains of murine immunoglobuline. The invention also relates to the utilization of recombinant antibodies derived from murine antibody ior C5 in the diagnosis and therapy of colorectal tumors, the metastasis thereof and recurrences.

Abstract: The present invention is related to the field of immunology and more specifically with immunotherapeutic combinations used for controlling growth and/or cell proliferation of tumors. By means of the present invention a therapeutic effect against tumors is observed by the combination of idiotypic vaccines whose principle active is an anti-ganglioside antibody (Ab1), with idiotypic vaccines whose principle active is anti-idiotype antibody (Ab2) obtained against an anti-ganglioside antibody, or vaccines whose principle active is one or more gangliosides. Combinations of these vaccines are described that cause a synergic therapeutic effect against tumors. The referred combinations can be applied to patients in different clinical conditions of tumors that express gangliósidos.

Abstract: The present invention relates to methods of treatment useful in chronic diseases, by means of the rupture of tolerance to self-antigens and increasing autoimmune response against these antigens. More particularly, the present invention relates to methods useful in the treatment of tumors that are growth dependent on the Epidermal Growth Factor, including non-small cell lung carcinoma.

Abstract: Monoclonal antibodies that recognize the CD6 antigen, pharmaceutical compositions that recognizes and that are able to achieve a clinical and histological effectivity in patients with different clinical types of Psoriasis.

Abstract: The present invention relates to the field of immunology and human medicine, in particular with a vaccine preparation able to provoke an immune-castration of self-TGF&agr;.

Abstract: Humanized and chimeric monoclonal antibodies that recognize EGF-R and comprise an artificial sequence at least of the FRs of the heavy chain variable region of a human immunoglobulin. The humanized and monoclonal antibodies may comprise variable regions of non-human origin and constant regions of human origin with amino acid substitutions with the variable regions and/or framework regions. Use of the antibodies for therapeutical and diagnostic purposes is also disclosed.

Abstract: An anti-idiotypic monoclonal antibody that is specific against the N-glycolyl residues of gangliosides, particularly those expressed by cancer cells. The monoclonal antibody is useful as an immunomodulator for cancer treatment. Specifically, the anti-Id monoclonal antibody of the present invention is capable of inducing a predominant anti-idiotypic response in xenogeneic models. The anti-idiotypic monoclonal antibody also exerts a protective effect against malignant tumors in animals.

Abstract: This invention discloses means for obtaining immunogenic peptides, polypeptides, proteins, and their corresponding nucleic acid sequences, target cells with vaccine interest, or lysates thereof, without making structural changes in said antigens, through their association with Very Small Size Proteoliposomes.

Abstract: The present invention describes the selection and use of antidiotypic monoclonal antibodies. (AB2) IgG type with the main characteristic of being highly connected to the idiotipic network and recognition of B and T human lymphocytes, which are major participants in the immune response. According to the previous statement the objective of this invention is to provide antidiotypic monoclonal antibodies IgG type connected to the immune network, able to interact with T and B lymphocytes and able to exert an immunoregulatory effect, irmunostimulation or immunosupression that can be used for immunotherapy of autoimune diseases, infectious diseases and cancer.

Abstract: The present invention is related with the field of immunology and human medicine, particularly with the generation and selection of a monoclonal antibody (Mab) that recognizes the N-glycolylated-galactose-glucose sialic acid olygosaccharide sequence presents in malignant tumors. One of the objectives of this invention is to provide a Mab of the IgG1 type that has the characteristic of recognizing with high specificity N-glycolylated-galactose-glucose sialic acid olygosaccharide sequence presents in malignant tissues of breast, melanomas and tumors of the liver, stomach, colon, rectum and kidneys. It also has the capacity of producing direct cytolysis of the tumoral cells bearing the N-glycolylated-galactose-glucose sialic acid olygosaccharide sequence, thus can be used for the diagnosis and treatment of certain neoplasic diseases.

Abstract: New humanized and chimeric monoclonal antibodies that recognize EGF-R and comprise an artificial sequence at least of the FRs of the heavy chain variable region of a human immunoglobulin.

Abstract: The invention provides novel uses for n-glycolylated gangliosides and N-acetylated gangliosides, or derivatives and/or oligosaccharides thereof The invention further provides methods of obtaining such gangliosides, as well as vaccine compositions comprising said gangliosides. The gangliosides may be coupled to carriers and may be accompanied by adjuvants. The vaccine compositions can be used in the treatment of breast cancers, whereby the gangliosides are used to elicit an immune response to corresponding gangliosides on breast tumor cells.

Abstract: An anti-idiotypic monoclonal antibody that is specific against the N-glycolyl residues of gangliosides, particularly those expressed by cancer cells. The monoclonal antibody is useful as an immunomodulator for cancer treatment. Specifically, the anti-idiotype monoclonal antibody of the present invention is capable of inducing a predominant anti-idiotypic response in xenogeneic models. The anti-idiotypic monoclonal antibody also exerts a protective effect against malignant tumors in animals.

Abstract: New humanized and chimeric monoclonal antibodies that recognize EGF-R and comprise an artificial sequence at least of the FRs of the heavy chain variable region of a human immunoglobulin. The hypervariable regions of both monoclonal antibodies is the following amino acid sequence: light chain:CDR-1: arg-ser-ser-gln-asn-ile-val-his-ser-asn-gly-asn-thr-tyr-leu-asp;CDR-2: lys-val-ser-asn-arg-phe-ser;CDR-3: phe-gln-tyr-ser-hys-val-pro-trp-thr.Heavy chain:CDR-1: asn-tyr-tyr-ile-tyr;CDR-2: gly-ile-asn-pro-thr-ser-gly-gly-ser-asn-phe-asn-glu-lys-phe-lys-thr;CDR-3: gln-gly-leu-trp-phe-asp-ser-asp-gly-arg-gly-phe-asp-phe.Use of the antibodies for therapeutical and diagnostic purposes.

Abstract: The present invention relates to immunotherapy strategies for the treatment of malignancies. The present immunotherapy strategies have gangliosides as a target. Gangliosides are glycosphingolipids which are present on normal cells and on malignant cells. On malignant cells they are more abundant and expressed in a different organization and conformation. The present invention provides antibodies which recognize these gangliosides, which antibodies are specific, have recurrent idiotypes and have value as immunoregulators. The invention further provides anti-idiotypic antibodies against anti-ganglioside antibodies. These are useful in vaccination strategies.

Abstract: The invention provides novel uses for n-glycolylated gangliosides, or derivatives and/or oligosaccharides thereof. The invention further provides methods of obtaining such gangliosides, as well as vaccine compositions comprising said gangliosides. The gangliosides may be coupled to carriers and may be accompanied by adjuvants. The vaccine compositions can be used in the treatment of breast cancers, whereby the gangliosides are used to elicit an immune response to corresponding gangliosides on breast tumour cells.

Abstract: Modified chimaeric antibodies, and antibody heavy and light chains, which comprise variable domains derived from a first mammalian species, usually mouse, and constant domains from a second mammalian species, usually human. Modification concerns the variable domains, in particular the framework regions of the variable domains. The modifications are made only in T-cell antigenic structures present in framework regions, and do not cover canonical structures or Vernier zone. The modifications adapt the amino acid sequences concerned to those occurring in corresponding antibodies derived from said second mammalian species. Thus, the modified chimaeric antibodies retain the original antigen recognition and binding properties but become less immunogenic to said second mammalian species, which improves their therapeutical utility with said second mammalian species. Recombinant DNA technology may be used to construct and produce the modified chimaeric antibodies.