Abstract: Human antibodies, preferably recombinant human antibodies, that specifically bind to human tumor necrosis factor ? (hTNF?) are disclosed. These antibodies have high affinity for hTNF? (e.g., Kd=10?8 M or less), a slow off rate for hTNF? dissociation (e.g., Koff=10?3 sec?1 or less) and neutralize hTNF? activity in vitro and in vivo. An antibody of the invention can be a full-length antibody or an antigen-binding portion thereof. The antibodies, or antibody portions, of the invention are useful for detecting hTNF? and for inhibiting hTNF? activity, e.g., in a human subject suffering from a disorder in which hTNF? activity is detrimental. Nucleic acids, vectors and host cells for expressing the recombinant human antibodies of the invention, and methods of synthesizing the recombinant human antibodies, are also encompassed by the invention.

Abstract: Human antibodies, preferably recombinant human antibodies, that specifically bind to human tumor necrosis factor ? (hTNF?) are disclosed. These antibodies have high affinity for hTNF? (e.g., Kd=10?8 M or less), a slow off rate for hTNF? dissociation (e.g., Koff=10?3 sec?1 or less) and neutralize hTNF? activity in vitro and in vivo. An antibody of the invention can be a full-length antibody or an antigen-binding portion thereof. The antibodies, or antibody portions, of the invention are useful for detecting hTNF? and for inhibiting hTNF? activity, e.g., in a human subject suffering from a disorder in which hTNF? activity is detrimental. Nucleic acids, vectors and host cells for expressing the recombinant human antibodies of the invention, and methods of synthesizing the recombinant human antibodies, are also encompassed by the invention.

Abstract: Methods, kits and apparatuses for chromatography purification of antibodies are provided. In some embodiments, antibodies are purified by mixed mode chromatography that does not comprise hydroxyapatite (HT) or fluorapatite (FT). The mixed mode chromatography step is then followed by a HT/FT chromatography step.

Abstract: The present invention relates to a selectively soluble polymer capable of binding to one or more constituents in a mixture containing various biological materials and the methods of using such a polymer to purify a biomolecule from such a mixture. The polymer is soluble in the mixture under a certain set of process conditions such as pH or temperature and is rendered insoluble and precipitates out of solution upon a change in the process conditions. While in its solubilized state, the polymer is capable of binding to a selected entity within the stream such as impurities (DNA, RNA, host cell protein, endotoxins, etc) in a cell broth and remains capable of binding to that entity even after the polymer is precipitated out of solution. The precipitate can then be filtered out from the remainder of the stream and the desired biomolecule is recovered and further processed.

Abstract: The present invention provides methods for purifying proteins. In particular, the methods employ a two-step non-affinity chromatography process without the use of an in-process tangential flow filtration step.

Abstract: A method of screening a sample of body fluid obtained from an animal subject for analyte autoantibodies reactive with one or more antigenic molecules selected from pancreatic islet cell antigenic molecules and insulin, or one or more variants, analogues, derivatives or fragments thereof, and a kit for use in such a method.

Abstract: The present invention discloses a method of purifying bivalent antibodies or antibody fragments that are active at both Fab sites from a source of antibodies or antibody fragments using a non-chromatographic method that includes inducing the formation of cyclic immunoglobulin aggregates by addition of multivalent hapten to a salt solution of soluble antibodies or antibody fragments, wherein the multivalent hapten possesses a linker between the two haptens effective to prevent the binding of both haptens of the ligand to the same antibody or antibody fragment.

Abstract: Methods are disclosed for use of apatite chromatography, particularly without reliance upon phosphate gradients, for purification or separation of at least one intact non-aggregated antibody, or at least one immunoreactive antibody fragment, from an impure preparation. Integration of such methods into multi-step procedures with other fractionation methods are additionally disclosed.

Abstract: Divalent antibody fragments are described, each of which has one or more interchain bridges containing a synthetic or naturally occurring polymer selected from a polyalkylene, polyakenylene, polyoxyalkylene or polysaccharide. Each bridge may be the residue of a homo- or heterobifunctional cross-linking reagent and serves to link two heavy chains in each antibody fragment via the sulphur atoms of cysteine residues present in the chains. Each fragment may be attached to one or more effector or reporter molecules, and is of use in therapy or diagnostics where it has markedly improved binding and/or pharmacokinetic properties when compared to other antibody fragments which have the same number and type of polymer molecules but in which the polymer molecules are randomly attached.

Abstract: The invention provides methods for isolating proteins in purified form from mixtures by precipitation with citrate. The methods are advantageous in that they effectively separate a protein from lower molecular weight contaminants, including fragments or portions of the protein. Such methods are particularly useful for purifying antibodies from mixtures containing antibody proteolytic fragments and unpaired chains.

Abstract: The present invention provides a method of removing product-related inactive or partially active species, high molecular weight aggregates, as well as other process-related impurities from preparations of acidic proteins by using ceramic hydroxyapatite chromatography.

Abstract: Methods for measuring an endocrine substance, such as feline insulin, in a biological sample taken from an animal with high accuracy, rapidity and brevity. The methods involve pre-treating a biological sample by removing an autoantibody bound to an endocrine substance present in a sample and measuring the endocrine substance after the pre-treatment. The methods can be used to measure autoantibody bound to an endocrine substance in the sample. Methods for diagnosis and treatment of diseases associated with endocrine substances are disclosed involving measuring an autoantibody value for an endocrine substance in a biological sample.

Abstract: A targeted iron chelator delivery system that comprises an iron chelator, a targeting agent and a lipid carrier, e.g., a liposome, is provided. The iron chelator delivery system may be used to remove excess iron from specific organs such as, for example, heart and liver tissue. Methods for preparing and administering the targeted iron chelator delivery system are also provided. The iron chelator delivery system may be administered during a blood transfusion to prevent iron overload.

Abstract: The subject invention provides new materials and methods for the efficient isolation and purification of stem cells. Specifically, conductive immunopolymers with stem cell specific antibodies can be used to remove stem cells from biological fluids.

Abstract: The present invention relates to an immunological method and, more particularly, a method for measuring cell-mediated immune reactivity (CMI) in mammals based on the production of IP-10. The invention further discloses an assay and a kit for measuring CMI to an antigen using whole blood or other suitable biological samples. The methods of the present invention are useful in therapeutic and diagnostic protocols for human, livestock and veterinary and wild life applications, thus the invention further relates to a method for diagnosing an infection in a mammal.

Abstract: This invention relates to the use of mixed mode chromatography for purification of at least one intact non-aggregated antibody from a mixture containing intact non-aggregated antibodies and undesirable materials, including fragmented or aggregated antibodies, host cell proteins, DNA, endotoxin, and/or virus. This invention further relates to the integration of such a method into a multi-step procedure with other fractionation methods for purification of antibodies suitable for in vivo applications.

Abstract: Disclosed are methods for detecting and treating joint disease. The methods of diagnosis include determining increased expression of enzymes that are upregulated during the progress of joint and ligament inflammation and degeneration. In addition, disclosed are methods of treating the disease including inhibiting the activity of responsible proteases.

Abstract: A system and method for providing 20% ethanol solutions meeting bioburden and endotoxin specifications, which provides the 20% ethanol solution in a ready-to-use form which may be dispensed directly from the container in which the solution is shipped, and which may be used in connection with storage, reuse and/or rejuvination of Protein A.

Abstract: This invention relates to the use of mixed mode chromatography for purification of a protein from a mixture containing other materials, including fragmented or aggregated antibodies, host cell proteins, DNA, endotoxin, and/or virus. This invention further relates to the integration of such a method into a multi-step procedure with other fractionation methods for purification of antibodies or other proteins suitable for in vivo applications.

Abstract: The present invention provides a homogeneous assay for identifying an antibody producing cell producing an antibody which binds to a selected antigen comprising: a) providing a population of antibody producing cells; b) incubating said population of antibody producing cells with a selected antigen and a labeled anti-antibody antibody, wherein said anti-antibody antibody is capable of distinguishing cells producing an antibody which binds to the selected antigen from those cells which do not; and c) identifying an antibody producing cell capable of producing an antibody which binds to the selected antigen.