Regulated genetic suicide mechanism compositions and methods
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United States of America Patent
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Feb 21, 2017
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May 28, 2015
filing date -
Jun 25, 2008
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Abstract
Embodiments of the present invention relates to the incorporation and use of a regulated genetic suicide mechanism for use in the improved purification of biologics, including adjunct use in various eubacterial minicell production and purification methodologies. Described herein are high-yield eubacterial minicell-producing strains with genetic modifications that comprise a regulated genetic suicide mechanism that irreparably destroys the parent cell chromosome such that live parental cells in a culture can be functionally eliminated at any time during the course of a minicell production and purification run. Embodiments of the present invention also describe methods useful in the elimination of live parental cells during the production of other cell-based biologics.
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