Method of monomerizing human serum albumin polymers

• Main Author: NOUCHI TOSHINOBU,MIZOKAMI HIROSHI,TAJIMA YOSHITAKA
• Format: Patent
• Language: English
• Published: 20.09.2006
• Subjects: BEER; BIOCHEMISTRY; CHEMISTRY; ENZYMOLOGY; FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIREDCHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERSFROM A RACEMIC MIXTURE; HUMAN NECESSITIES; HYGIENE; MEDICAL OR VETERINARY SCIENCE; METALLURGY; MICROBIOLOGY; MUTATION OR GENETIC ENGINEERING; ORGANIC CHEMISTRY; PEPTIDES; PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES; SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS ORMEDICINAL PREPARATIONS; SPIRITS; VINEGAR; WINE

A method for converting a multimer of human serum albumin into monomers thereof comprises the step of treating the multimer with an alkaline solution. This method permits the efficient and quite simple conversion of human serum albumin multimers into monomers thereof at a low cost. A method for preventing the uncorrected holding of human serum albumin during a process for converting a multimer of human serum albumin into monomers thereof by treating the multimer with an alkaline solution, comprises the step of treating the human serum albumin-containing solution with the alkaline solution in the presence of an SH group-containing compound. This method permits the efficient inhibition of any intra-molecular or inter-molecular uncorrected holding of human serum albumin, which is specifically caused in an oxidative atmosphere during the process for preparing HSA from the plasma or the process for preparing rHSA according to the gene recombination technique. Moreover, the method likewise permits the preparation of high purity human serum albumin having a reduced content of a novel substance, which is formed through the uncorrected holding of human serum albumin and becomes a cause of side effects such as allergy observed when it is administered to a patient.