摘要:
The invention relates to the field of immunology, endocrinology and oncology and, in particular, the generation of a combined immune response to determined growth and hormone factors. A synergic effect, outlined herein, between factors regulating growth (EGF, TGF, VEGF) and hormones involved in the sexual hormone release cascade or reproduction (GnRH, LH, FSH) stimulates the anti-tumour response which is expressed as a reduction in the tumour mass and an increase in the survival time.
摘要:
The invention relates to a vaccine composition comprising IL-15, which is used for active immunisation in the treatment of diseases associated with overexpression of said cytokine. The technical objective of the invention is the inhibition of the activity of IL-15 through the development of a therapeutic vaccine which generates IL-15-neutralising antibodies in the immunised individual. In the inventive vaccine composition, IL-15 can appear alone or coupled to a carrier protein, such as P64k, and an adjuvant, such as aluminium hydroxide. The invention also relates to the use of said vaccine in the treatment of rheumatoid arthritis and other diseases associated with overexpression of IL-15 or diseases in which said cytokine acts as a growth factor, such as in the case of leukemias.
摘要:
A method based on the selective isolation of peptides originated by the cleavage at the C-terminal end of the arginine residues and do not possess lysine inside their sequences (péptidos RRnK), is described. The method is based on the blocking of amino groups of the LEP peptides and the separation of the RRnK peptides and the modified peptides by using a chromatography column or a chemical reaction of the modified peptides with a solid support. The method simplifies the complex mixtures of peptides by isolating selectively an average of 4 peptides/protein and it guarantees a coverage of 88% of the proteomes, its specificity and selectivity are very high (>95%), it is compatible with different types of isotopic labeling ( 13 C, 18 O or 15 N) and it is useful for the determination of the differential expression of proteins without the necessity of using the two-dimensional electrophoresis.
摘要:
The invention refers to mono- and divalent (diabody) single chain Fv (scFv) antibody fragments, obtained by recombinant DNA techniques from the anti-carcinoembryonic antigen (CEA) monoclonal antibody (Mab) CB/ior-CEA.1. This antibody has high affinity for CEA and is employed in the diagnosis and follow-up of human colorectal tumors. As the original Mab, the monovalent fragment and the diabody exhibit high affinity for human CEA and recognize an epitope dependent of carbohydrate conservation. The monovalent scFv fragment and the diabody have affinity constants for CEA of (5.0 ± 0.4) x 10 9 L mol -1 and (2.8 ± 0.3) x 10 10 L mol -1 , respectively. These two fragments do not show cross reactivity with human normal cells and tissues, exception made of the normal colonic mucosa, where CEA is occasionally present. The fragments can be produced through the expression in recombinant microorganisms, starting from the cloning of the encoding variable region nucleic acid sequences obtained from the hybridoma that produces Mab CB/ior-CEA.1. As the original Mab, the monovalent scFv and the diabody have the ability to identify in vivo cells that produce human CEA and grow as tumors in mice. The monovalent scFv and the diabody have a molecular size 5 and 2.5 times lower, respectively, than the mouse Mab, and do not have Fc domains, fact this that confers them the potential to better penetrate tissues in vivo and to be less immunogenic in man.
摘要:
This invention relates to pesticide and antiparasitic compositions for the control of pests, diseases and parasites attacking plants and animals. The compositions include, at least one chitinolytic agent or a chitinolytic activity-inducing agent, and sulfide or a sulfide-producing agent from microorganisms or chemical compounds, wherein the chitinolytic agent or the chitinolytic activity-inducing agent and sulfur or a sulfur-producing agent obtaining from microorganisms or chemical compounds are concurrently applied at a range significantly lower than any of the above-mentioned compounds, when they are individually to attain effective control.
摘要:
The present invention is related to a method for obtaining antigenic structures with high cross reactivity, able to enhance the immune response to peptidic antigens administered systemically and/or mucosally, as well as with the chemical structures obtained from this method, and with formulations obtained and their uses. The method described in the present invention enables the obtaining of new antigenic structures, starting from the selection and synthesis of dendrimers, which are coupled to carrier molecules. The resulting structures can be used adjuvated conveniently or in a formulation of various antigens. A synergistic effect can be found in the cross reactivity and immunogenicity. Furthermore, the formulations may contain stabilizers and preserves. The antigenic structures of the present invention can be used in the pharmaceutical industry as vaccine formulations to prevent or to treat diseases in humans and animals, as well as in the development of diagnostic systems.
摘要:
The present invention is related to the medical field, and in particular to the use of new formulations of adjuvants with vaccine antigens. The technical object of the invention is the development of formulations which are capable of potentiating the immune response of the organism to vaccines of nucleic acids. In order to attain this objective, a formulation has been developed which contains as fundamental components the vaccine nucleic acid and acemannan in adequate proportions, in addition to stabilizing and preservative agents. The formulations of the invention are applicable to the pharmaceutical industry as vaccine formulations both for human and animal use.
摘要:
The present invention relates to the medical field, particularly to the use of new formulations of adjuvants as vaccinal antigenes. The technical objective of the present invention is precisely the development of formulations capable of raising and/or modulating the immune response of the organism to vaccinal antigenes at serum and mucus levels. In order to attain such objective, a formulation has been developed which contains as fundamental components the surface antigene of the B hepatitis virus and the acemanane in adequate proportions. As an extension of such result, formulations have been developed wherein: a) HBsAg is used as carrier of homologous and heterologous antigenes; b) systems for transmitting particulate antigens and c) soluble antigens, in combination with the acemanane in specific proportions. The formulations of this invention are applicable to the pharmaceutical industry as vaccinal formulations both for human and veterinary use.