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On-line Analysis and Simultaneous Isolation of Recombinant t-PA Using High Performance Membrane Affinity Chromatography

Found recently serine protease called, as tissue plasminogen activator (t-PA) is able to dissolve efficiently the blood clots. Thus this protein seems to be extremely useful in clinical practice in the cases of heart attack victims.

Real process of fibrinolysis in human blood system represents very complicated network of simultaneous biological events. It is clear that t-PA has a branched set of functional complements with their own, and probably different, affinity to this enzyme. It seems to be possible and quite interesting to investigate all these pairs separately creating them in vitro. At the same time, it is clear that the affinity chromatography approach could become as the most convenient way to create such biological pairs.

The recently developed High Performance Membrane (Monolith) Chromatography (HPMC) is quite promising in this regard, because of its high capacity and selectivity, combined with low backpressure and short operation times. Due to the inherent speed of the isolation it facilitates the recovery of a biologically active product, since the exposure to putative denaturing influences.


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