摘要:
Preparation process for a protein comprising at least one intramolecular disulphide bridge, and optionally one or more additional cysteines, comprising the oxidation of the corresponding reduced recombinant protein using an oxidizing agent and characterized in that an aqueous solution of the reduced protein is reacted at a pH of less than 5.0.
摘要:
A pharmaceutical composition containing IL-2 or IFN-.beta. dissolved in a suitable carrier medium at pH 7.0 to 8.0 stabilized with sodium laurate is suitable for parenteral injection into humans or animals. This formulation may be prepared by adding to either protein, after its recovery from a transformed organism, an effective amount of sodium laurate at a pH of 9 to 9.5 and then adjusting the pH of the formulation to between 7.0 and 8.0.
摘要:
An immunomodulating pharmaceutical composition comprising an effective, leukocyte interferon production inducing amount of NS1 and a pharmaceutically acceptable carrier or diluent; and a method of modulating the immune response in a human or other animal in need thereof by inducing the production of leukocyte IFN which comprises administering an effective amount of NS1 to such human or animal.
摘要:
This invention relates to the microbial production, via recombinant DNA technology, of new human leukocyte interferons, Le IF-K and Le IF-L for use in the treatment of viral and neoplastic diseases, and to the means and end products of such production.
摘要:
A process is disclosed for purifying gamma interferon from various contaminants resulting from disruption of the cell in which the interferon was produced. The process provides for sequential removal of (a) nucleic acids, (b) negatively charged contaminating proteins, (c) positively charged contaminating proteins and (d) low and high molecular weight impurities.
摘要:
Modified beta interferons containing amino acid substitutions in the beta interferon amino acids 115 to 145 are described. These modified beta interferons exhibit changes in the antiviral, cell growth regulatory or immunomodulatory activities when compared with unmodified beta interferon.
摘要:
A stable human .gamma.-interferon composition is produced by adding dextran and/or hydroxyethylstarch to an aqueous human .gamma.-interferon solution freezing the resulting solution and, if desired, drying the resulting frozen solution under reduced pressure.
摘要:
The invention relates to a process for the isolation and purification of .alpha.-interferons generated by plasmids from bacterial cultures which have been modified by genetic engineering, and of .alpha.-interferons from culture supernatants of induced mammalian cells, which comprises partition of appropriate crude substances containing interferon between an aqueous urea solution, which contains a surfactant, and a mixture of n-butanol and glacial acetic acid which contains water, and isolation of the purified .alpha.-interferons from the upper phase.
摘要:
An intact human immune interferon protein and a method for the extraction and purification of intact recombinant human immune interferon is disclosed. This method permits the purification to homogenity of intact recombinant human immune interferon.
摘要:
This disclosure relates to a method of stabilizing Human Fibroblast Interferon (HFIF) known as "Interferon .beta." with polyvinyl pyrrolidone and to transportable and storable vials containing such stabilized Interferon .beta..