Application of the formed by the functional polymers such as a stationary phase chromatography of affinity for the purification of growth factors and method of purification corresponding

摘要

The invention relates to the use, as a stationary phase in affinity chromatography in the purification of growth factors of the FGF type, of polymers or copolymers to which are bound, in statistical fashion, -SO3H groups and groups -SO3M where M represents a physiologically acceptable metal, as well as, preferably, groups -SO2R where R represents a radical obtained by removal of a hydrogen atom on the amine function of an amino acid or an amino acid derivative. The invention also relates to the production of a purified bFGF or aFGF growth factor, or of a mixture of these growth factors, which consists in performing affinity chromatography on a resin as defined above, an elution being carried out with a buffer of neutral pH having an ionic strength equivalent to that of a 0.15M to 2.5M NaCl solution.