A hemofiltration system for a mammal comprises a hemofilter and an adsorbent device. The hemofilter removes ultrafiltrate from a blood stream extracted from the mammal to create a filtered blood stream and an ultrafiltrate stream. The adsorbent device is comprised of one or more adsorbent materials and is used to adsorb inflammatory mediators from the ultrafiltrate stream received from the hemofilter removing inflammatory mediators that cause inflammatory mediator related disease, sepsis, and SIRS/MODS/MOSF to create a post adsorption ultrafiltrate stream. The post adsorption ultrafiltrate stream is selectively combined with the filtered blood stream and together with the filtered blood stream is returned to the mammal.

Hemofiltration systems, methods and devices used to treat inflammatory mediator related disease

A process for the preparation of albumin which has extremely low levels of or is essentially free of colorants, metal ions, human proteins, fragments of albumin, polymers or aggregates of albumin, and viruses, and which is relatively non-glycated, relatively high in free thiol and with an intact C-terminus. The process comprises passing albumin (preferably expressed and secreted by transformed yeast) through two chromatography purifications, ultrafiltering the product, passing through two further chromatography steps and again ultrafiltering the product.

High purity albumin and method of producing

Human serum albumin from recombinant DNA technology: Challenges and strategies

The invention provides a process for purifying recombinant human serum albumin (rHSA) by heating a culture medium containing rHSA and the rHSA-producing host cells, feeding said heated solution upwardly into a fluidized bed in which adsorbent particles are suspended to effect contacting with the adsorbent particles and then recovering the adsorbed fraction containing the rHSA, and a composition comprising rHSA which shows a A350/A280 ratio of below 0.015, when formulated into a 25 % solution of said albumin.

Process for purifying recombinant human serum albumin

This invention provides modified human plasma polypeptides or Fc scaffolds and uses thereof, such as modified hPP and modified hA polypeptides or Fc scaffolds that vary from natural isoforms of the human plasma polypeptides or Fc scaffolds by virtue of comprising one or more non-naturally encoded amino acids.

Modified human plasma polypeptide or fc scaffolds and their uses

Human serum albumin obtained by gene manipulation techniques can be purified by a combination of specified steps in which a culture supernatant obtained from a human serum albumin-producing host is subjected to ultrafiltration, heat treatment, acid treatment and another ultrafiltration, followed by subsequent treatments with a cation exchanger, a hydrophobic chromatography carrier and an anion exchanger, and by salting-out to thereby obtain a pure form of human serum albumin which contains substantially no proteinous and polysaccharide contaminants, which is formulated into a pharmaceutical preparation. The thus obtained human serum albumin can further be purified by treating recombinant human serum albumin with a hydrophobic chromatography carrier at pH of 2 to 5 and a salt concentration of 0.4 to 1 and exposing the carrier to a pH of 6 to 8 and a salt concentration of 0.01 to 0.3 M, or treating the culture supernatant with boric acid or a salt thereof at pH 8 to 11 for 1 to 10 hours and recovering the supernatant. This process makes it possible to effeciently purify recombinant human serum albumin and to provide substantially pure human serum albumin which does not contain producer host-related substances and other contaminants and is sufficiently free from coloration.

Kazuhiro Oohara

Papers

Recombinant human serum albumin, process for producing the same and pharmaceutical preparation containing the same