摘要:
The present invention is directed to novel polypeptides having structural homology to IL-8 and to nucleic acid molecules encoding those polypeptides. Also provided herein are vectors and host cells comprising those nucleic acid sequences, chimeric polypeptide molecules comprising the polypeptides of the present invention fused to heterologous polypeptide sequences, antibodies which bind to the polypeptides of the present invention and to methods for producing the polypeptides of the present invention. Further provided herein are methods for treatment and diagnosis of inflammatory diseases.
摘要:
A prophylactic or therapeutic method for a disease associated with decreased expression of AOP-1 gene or AOP-1, comprising (1) transfecting a nucleic acid encoding AOP-1 or a nucleic acid encoding a polypeptide having an addition, deletion or substitution of one or more amino acids as compared with the amino acid sequence of AOP-1 while retaining the function of AOP-1, or (2) administering a material enhancing the expression of AOP-1 gene, a material enhancing the production of AOP-1 or a material enhancing the function of AOP-1.
摘要:
The present invention is directed to novel polypeptides having structural homology to IL-8 and to nucleic acid molecules encoding those polypeptides. Also provided herein are vectors and host cells comprising those nucleic acid sequences, chimeric polypeptide molecules comprising the polypeptides of the present invention fused to heterologous polypeptide sequences, antibodies which bind to the polypeptides of the present invention and to methods for producing the polypeptides of the present invention. Further provided herein are methods for treatment and diagnosis of inflammatory diseases.
摘要:
Hepatitis GB Virus (HGBV) synthetic peptides useful for a variety of diagnostic and therapeutic applications, kits for using the HGBV nucleic acid or amino acid sequences and antibodies which specifically bind to HGBV. Also provided are methods for producing antibodies, polyclonal or monoclonal, from the HGBV peptides.
摘要:
This invention provides a reagent capable of binding to T cells and having specificity for a unique sequence within the variable region of the .beta. chain of the T cell receptor, the presence of increased number of T cells carrying the unique sequence relative to the number of T cells carrying the sequence present in a normal subject being associated with a specific disease. Specific diseases such as human cancers, e.g. lymphomas; autoimmune diseases, e.g. rheumatoid arthritis; Alzheimer's disease; infectious diseases, e.g. those caused by bacteria, yeast or parasite; or allergies, may be diagnosed as follows. A suitable sample containing T cells is obtained from a subject. The sample is contacted under appropriate conditions with such a reagent. If the subject's cells contain the unique sequence, a detectable complex is formed between the reagent and T cells which contain the sequence. By quantitatively determining the number of T cells containing the sequence present in the complex formed and comparing this number with the number of T cells carrying the sequence determined for a normal subject, the disease with which the unique sequence is associated may be diagnosed. Similar reagents and methods may also be used to detect organ transplant rejection.
摘要:
A simultaneous sandwich immunoassay employing high-affinity monoclonal antibodies is disclosed. This simultaneous sandwich assembly has surprising sensitivity compared to forward and reverse sandwich assays for the detection of multi-determinant antigens such as hepatitis B surface antigen.
摘要:
A sensitive direct immunoassay system is provided for the detection of an antigen in body fluids. A single antibody which reacts with an antigen or antigens and which is bonded to an insoluble member, is incubated with a test sample. During this first period of incubation a portion of an antigen present in the test sample will combine with the antibody immobilized on the insoluble member. The antibody bonded member, to which antigen is attached, is then washed and incubated with an enzyme tagged antibody reagent. During the second incubation, the tagged antibody reacts with antigen fixed to the antibody member in the first incubation. Thus, an immobilized "sandwich" is formed of an insoluble member- antibody-antigen-enzyme tagged antibody. After the second incubation, the member is washed again to remove unreacted enzyme antibody reagent. The member is then exposed to a substrate which is converted by the enzyme to produce an end product. The tagged antibody reagent will be fixed in the second incubation only if antigen was present in the sample. The amount of enzyme tagged antitbody fixed is proportional to the amount of antigen or antigens present in the test sample up to the maximum capacity of the test. The concentration of the end product, and hence the amount of antigen or antigens, is determined by a spectrophotometer which measures the optical absorption of light by the end product. This readout is then compared against a standard value for both antigen negative and antigen positive samples.
摘要:
A test set useful for detecting the presence of antigens associated with hepatitis comprising an insoluble, polymeric disc-like solid having antibody reactive with antigens associated with hepatitis bonded thereto, an enzyme-hepatitis antibody conjugate reagent, an enzyme substrate solution, control sera negative, weakly positive, and strongly positive for antigens associated with hepatitis, an enzyme substrate buffer, and a horse globulin solution. Preferably, the enzyme of the conjugate is alkaline phosphatase, the enzyme substrate is p-nitrophenylphosphate and the substrate buffer has a pH on the order of 9.8.
摘要:
The formation of antibodies to the A-2 plaque virus previously propagated in tissue culture is described. The application describes an immune response against those antibodies and against the A-2 plaque virus antigen which is associated with human viral hepatitis both of type A and B origin. The reaction of antibody for A-2 plaque virus with the antigen from stool specimens of volunteers infected with type A hepatitis and from the sera of patients diagnosed as having type B hepatitis is described. Convalescent sera from both type A and type B hepatitis patients in reaction with the virus, demonstrate the presence of antigenic components in the plaque virus which react with human antibody formed in response to infection with either type A or type B hepatitis. Moreover, the A-2 plaque antibodies react with hepatitis B core antigen, while antibodies to HB.sub.c Ag react with A-2 plaque antigen. Additionally, methods for inducing antibody formation in humans from the A-2 plaque virus antigen are described, as are methods for detecting HB.sub.c Ag, HB.sub.c Ab, HAAg and HAAb.
摘要:
A method for direct radioimmunoassay of antigens or their associated antibodies utilizing a coated test apparatus comprising adding a serum to be tested for an antigen to test apparatus coated with its antibody; incubating the tubes for from 0.5 to 42 hours; aspirating the contents and washing the same with a Tris-HCl and sodium azide mixture; adding purified I.sup.125 labeled antibody into the tube and incubating for from 1 to 24 hours; aspirating and washing the contents; and counting the tube for I.sup.125 radiation. A similar assay for the antibody may be conducted utilizing an antigen coated apparatus and I.sup.125 labeled antigen. The method for coating these apparatus such as tubes comprises adding the antigen or antibody solution in a Tris-HCl, sodium azide solution into a suitable test tube or well, incubating the tubes at room temperature, aspirating and washing the contents and storing at from between 2.degree. and 25.degree. C. until use.