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MonoPEGylated Human Interferon beta-1a Preparation: Optimization of Conditions for N-Terminal Pegylation
MonoPEGylated Human Interferon beta-1a Preparation: Optimization of Conditions for N-Terminal PegylationАвтор: D.V. Korzhavin, T.V. Chernovskaya, Yu.G. Efanov, E.G. Rudenko, R.A. Ivanov, A.B. Pshenichnikova, and V.I. Shvets Страница: 49-60
MonoPEGylated Human Interferon beta-1a Preparation: Optimization of Conditions for N-Terminal Pegylation Biotekhnologiya, 2015, N 1, P. 49-60 UDC 577.112.4 Section: “Biologicals Technology”
D.V. Korzhavin 1, 2, *, T.V. Chernovskaya 1, Yu.G. Efanov 1, E.G. Rudenko 1, R.A. Ivanov 1, A.B. Pshenichnikova 2, and V.I. Shvets 2 1 The BIOCAD Biopharmaceutical Co., 198515, St.-Petersburg Russia 2 The Lomonosov Moscow State University for Fine Chemical Technology, 119571, Moscow Russia e-mail: korjavin@biocad.ru
A modification of recombinant human IFN beta-1a by polyethylene glycol at α-amino group of N-terminal methionine has been performed. The PEGylation was conducted using activated butyraldehyde PEG derivative with molecular mass of 30000 Da. As a result of the multifactorial experiment, the dependence of monoPEGylated protein yield on the reaction conditions was demonstrated, and optimal PEGylation conditions were established. We developed a one-step chromatographic purification scheme allowing to obtain the monoPEG-IFN beta-1a conjugate with the above 98% purity . Mass-spectrometric studies showed that the molecular mass of the conjugate is 54130 Da, wherein the N-terminal methionine is associated with one PEG molecule. The obtained PEG-IFN beta-1a has specific antiviral activity, and it can be considered as a perspective candidate to the design of long-acting medicine for the prolonged treatment of multiple sclerosis.
Key words: human IFN-beta, modification, multiple sclerosis, polyethylene glycol, prolonged release form.
29.05.2015, 1711 просмотров. |
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