Use of functional polymer resins as stationary phase in the affinity chromatography for the cleaning of the growth factor and corresponding purification process.

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.