Continuous centrifugation process for the separation of biologic

Details Continuous centrifugation process for the separation of biologic Continuous centrifugation process for the separation of biologic

1994-06-07

1997-06-24

Housel, James C.

Chemistry: molecular biology and microbiology

Maintaining blood or sperm in a physiologically active state...

435 6, 435261, 436518, 436523, 436532, 424529, A01N 102, C12Q 168, C12N 102

Patent

active

056416229

ABSTRACT:
A method combining the techniques of immunoaffinity separation and continuous flow centrifugal separation is provided for selective separation of a nucleated heterogeneous cell population from a heterogeneous cell mixture. The heterogeneous cell mixture is intimately contacted to promote binding thereto by particles having attached a substance that actively binds to a specific desired type of cell out of the cell mixture. The particles are selected so that the sedimentation velocity of the particle/cell conjugate differs sufficiently from those of other cells in the cell mixture to allow its separation by means of a continuous flow cell separator. The method rapidly processes large volumes of cell mixture with the high accuracy expected of immunoaffinity separation and can be used to separate, for example, various types of leukocytes from whole blood, bone marrow concentrate, or a peripheral blood stem cell concentrate; or precursors of lymphokine activated killer cells, tumor infiltrating lymphocyte cells, or activated killer monocytes from lymphocyte or monocyte cell concentrates or from a tissue cell preparation.

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