Abstract:
An antigen which, as its major immunizing component, comprises a determinant of an adhesin polypeptide or an immunogenically active subsequence thereof or a precursor therefor which is convertible to an immunogenically active form, antibodies against which determinant react with the adhesion polypeptide produced by pathogenic adhesin-forming bacteria which adhere to mammalian tissue, antibodies against such antigen, and DNA expressing, as a principal gene product thereof, such antigen.
Abstract:
A new, human proteinaceous lymphokine denominated cytotoxicity triggering factor (CTF) is disclosed as are methods of its preparation and use. Substantially pure CTF has an apparent M.sub.r of about 55 kd, is capable of inducing secretion of a tumor-killing factor containing tumor necrosis factor-alpha from primed monocytes, and is substantially free from pyrogen as well as interferon-gamma, interleukin-2 and direct cytotoxin.
Abstract:
A stable trioma cell line capable of secreting a non-human primate monoclonal antibody specific against a selected antigen. An exemplary cell line secretes chimpanzee monoclonal antibody specific against an antigen associated with hepatitis nonA/nonB infection. The cell line is produced, in the method of the invention, by isolating lymphocytes from a primate immunized with the selected antigen, and immortalizing the lymphocytes by fusion with a stable, non-antibody-secreting murine myeloma/human hybridoma cell line having selected-for human characteristics. The trioma fusion products are selected for secretion of the desired antibody, which has a variety of diagnostic and/or therapeutic uses.
Abstract:
Regression associated antigens are identified in material from neoplastic cells by their immunological reactivity with regression associated antibodies from the serum of patients diagnosed as undergoing regression of a tumor. Regression associated antibodies are identified by their absence during progression of a neoplastic disease state and by their presence in a diagnosed state of regression. The antigens are purified, used to monitor the condition of cancer patients, and production of antibodies and treatments employing those antibodies are described.
Abstract:
Bifunctional derivatives of a 3-carboxhydrazide of an antineoplastic dimeric indole-dihydroindole alkaloids, useful both in forming conjugates with immunoglobulins and as anti-tumor agents.
Abstract:
A cell growth inhibitor consisting essentially of a peptide substantially free of cytotoxins and containing an amino acid sequence of Phe-Cys-Arg-Phe-Leu-Leu-Cys-Pro-Ser-Arg-Thr-Ser-Asp. The peptide may be obtained by fractionation of venom from proteroglyphodont snakes. One cytostatically active fraction contains a peptide with a molecular weight of 3200-3500 daltons, 27-29 amino acid groups, and a blocked amino terminus. Another fraction contains an oligomer or precursor of the lower molecular weight peptide. Also disclosed is a method of inhibiting the growth of cells by introducing the cell growth inhibitor to the cells to be inhibited in an effective amount.
Abstract:
The invention relates to conjugates including at least one linker, a biomolecule coupled to the linker, and cyclohexane derivatives of the following formula: and oligomers thereof.
Abstract:
A propiophenone derivative of the formula �I!: ##STR1## wherein X is O, S or methylene, OY is a protected or unprotected OH, Z is .beta.-D-glucopyranosyl or 4-O-(.alpha.-D-glucopyranosyl)-.beta.-D-glucopyranosyl or wherein one or more hydroxy groups of these groups may optionally be acylated, and the dotted line means the presence or absence of a double bond, or a pharmaceutically acceptable salt thereof. Said compounds have excellent hypoglycemic activity so that they are useful in the prophylaxis or treatment of diabetes.
Abstract:
This invention relates to a method of inhibiting platelet aggregation using 1,4-diazocine compounds which are mimics of the peptide sequence Arg--Gly--Asp.
Abstract:
Disclosed are compounds having antigenic binding affinity with antibodies directed against human chorionic gonadotropin. The compounds typically include or consist of an oligopeptide with the sequence:AA1' AA2' AA3' AA4' AA5' AA6'wherein AA1' is Gly, Asn, Ser, Phe, Arg Leu, or Lys; AA2' is Pro, Trp, Ala, Val, or Glu; AA3' is Arg, Gln, Ile, Met, Val, Thr, Ser, Gly, or Phe; AA4' is Tyr, Glu, Leu, Phe, Pro, or Thr; AA5' is Asp, Asn, Leu, Met, Val, Tyr, Ser, Ile, Ala, Gly, or Phe; and AA6' is Phe, Trp, Ala, Thr, Arg, Asp, or Val.