Abstract: A method for producing tissue plasminogen activator (t-PA) in eukaryotic host cells is disclosed. Enhanced levels of t-PA production are obtained by co-amplification of the t-PA gene through treatment of cultures transformed with mutant or wild type DHFR with methotrexate.

Abstract: D-factor, growth hormone, IL-1, and tumor necrosis factors are employed alone or in combination as synergistic cytoprotective agents for patients exposed to toxic doses of ionizing radiation and/or chemotherapy. Synergistic cytoprotective regimens are provided. Use of D-factor, growth hormone, tumor necrosis factors, and/or IL-1, alone or in synergistic combination, is disclosed for the prevention and treatment of alopecia.

Abstract: Distinct .alpha.-, .beta.- and .gamma.-interferon genes from various animal species have been identified, cloned and expressed to produce the corresponding non-human animal interferon proteins. Specifically disclosed are interferons of bovine, porcine, feline and rabbit origin.

Abstract: Distinct .alpha.-, .beta.- and .gamma.-interferon genes from various animal species have been identified, cloned and expressed to produce the corresponding non-human animal interferon proteins. Specifically disclosed are interferons of bovine, porcine, feline and rabbit origin.

Abstract: Nucleic acid encoding TGF-.beta. has been isolated and cloned into vectors which are replicated in bacteria and expressed in eukaryotic cells. TGF-.beta. is recovered from transformed cultures for use in known therapeutic modalities. Nucleic acid encoding TGF-.beta. is useful in diagnosis and identification of TGF-.beta. clones.

Abstract: Described are methods and means for the construction and microbial expression of quasi-synthetic genes arising from the combination of organic synthesis and enzymatic reverse transcription from messenger RNA sequences incomplete from the standpoint of the desired protein product. Preferred products of expression lack bio-inactivating leader sequences common in eukaryotic expression products but problematic with regard to microbial cleavage to yield bioactive material. Illustrative is a preferred embodiment in which a gene coding for human growth hormone (useful in, e.g., treatment of hypopituitary dwarfism) is constructed and expressed.

Abstract: The invention concerns novel inhibitors of tumor necrosis factor receptor associated factor-(TRAF) mediated signal transduction. The invention encompasses the novel inhibitor proteins (I-TRAFs), nucleic acid encoding them, methods for their recombinant production, and their use in screening assays and as pharmaceuticals.

Abstract: The invention provides methods and compositions relating to a novel tumor necrosis factor receptor associated factor number six (TRAF6) protein, which transcriptionally activates Nuclear Factor .kappa.B. The invention provides isolated TRAF6 hybridization probes and primers capable of hybridizing with the disclosed TRAF6 gene, nucleic acids encoding the subject TRAF6 proteins, methods of making the subject TRAF6 proteins, and methods of using the subject compositions in diagnosis and drug screening.

Abstract: Tissue plasminogen activator (t-PA) derivatives are produced in useful quantities using recombinant DNA techniques. Specific derivatives include amino acid deletion derivatives and amino acid substitution derivatives. A deletion derivative lacking the N-terminal first 68 amino acids is specifically exemplified having requisite t-PA characteristics. The invention disclosed thus enables the production of t-PA derivatives via recombinant means. Methods, expression vehicles and various host cells useful in the production of said t-PA derivatives are also disclosed.

Abstract: A human tissue plasminogen activator (t-PA) is produced in useful quantities using recombinant DNA techniques. The invention disclosed thus enables the production of t-PA free of contaminants with which it is ordinarily associated in its native cellular environment. Methods, expression vehicles and various host cells useful in its production are also disclosed.

Abstract: Methods and compositions are provided which include use of lymphotoxin (LT) and one or more other anti-cancer therapies for treating cancer in vivo or ex vivo. LT can be employed, for instance, with chemotherapy or radiation therapy to provide improved anti-cancer therapy.

Abstract: The invention concerns new tumor necrosis factor receptor associated factors, designated TRAFs. The new factors are capable of specific association with the intracellular domain of the type 2 TNF receptor (TNF-R2) and CD40, and are involved in the mediation of TNF and CD40 ligand biological activities.

Abstract: A screening method for the selection of mutagenized proteins that are normally secreted by cells is described. The method includes the development of a cloning vector for the expression of secretory proteins as fusion proteins on the cell surface of transfected mammalian cells. The secreted protein is displayed on the cell surface by fusion with the glycophospholipid membrane anchor of decay accelerating factor (DAF). Tissue-type plasminogen activator (t-PA), which is normally secreted, is used as a model protein. PCR mutagenesis is used to generate random mutations within the Kringle 1 (K1) domain of t-PA. Fluorescence activated cell sorting (FACS) is employed to screen for t-PA mutants possessing a loss of an epitope to a specific Mab, whose nonlinear binding domains overlap with the t-PA clearance receptor contact regions novel t-PA mutants designated N115S, N1425S, and K159R were discovered by this method.

Abstract: Tissue plasminogen activator (t-PA) derivatives are produced in useful quantities using recombinant DNA techniques. Specific derivatives include amino acid deletion derivatives and amino acid substitution derivatives. A deletion derivative lacking the N-terminal first 68 amino acids is specifically exemplified having requisite t-PA characteristics. The invention disclosed thus enables the production of t-PA derivatives via recombinant means. Methods, expression vehicles and various host cells useful in the production of said t-PA derivatives are also disclosed.

Abstract: Tissue plasminogen activator (t-PA) derivatives are produced in useful quantifies using recombinant DNA techniques. Specific derivatives include amino acid deletion derivatives and amino acid substitution derivatives. A deletion derivative lacking the N-terminal first 68 amino acids is specifically exemplified having requisite t-PA characteristics. The invention disclosed thus enables the production of t-PA derivatives via recombinant means. Methods, expression vehicles and various host cells useful in the production of said t-PA derivatives are also disclosed.

Abstract: D-factor, growth hormone, IL-1, and tumor necrosis factors are employed alone or in combination as synergistic cytoprotective agents for patients exposed to toxic doses of ionizing radiation and/or chemotherapy. Synergistic cytoprotective regimens are provided. Use of D-factor, growth hormone, tumor necrosis factors, and/or IL-1, alone or in synergistic combination, is disclosed for the prevention and treatment of alopecia.

Abstract: The invention provides methods and compositions relating to a novel tumor necrosis factor receptor associated factor number six (TRAF6) protein, which transcriptionally activates Nuclear Factor .kappa.B. The invention provides isolated TRAF6 hybridization probes and primers capable of hybridizing with the disclosed TRAF6 gene, nucleic acids encoding the subject TRAF6 proteins, methods of making the subject TRAF6 proteins, and methods of using the subject compositions in diagnosis and drug screening.

Abstract: The invention concerns new tumor necrosis factor receptor associated factors, designated TRAF.

Abstract: Human tissue plasminogen activator (t-PA) is produced in useful quantities using recombinant DNA techniques. The invention disclosed thus enables the production of t-PA free of contaminants with which it is ordinarily associated in its native cellular environment. Methods, expression vehicles and various host cells useful in its production are also disclosed.

Abstract: The invention concerns new tumor necrosis factor receptor associated factors, designated TRAF. The new factors are capable of specific association with the intracellular domain of the type 2 TNF receptor (TNF-R2), and are involved in the mediation of TNF biological activities.