Methods and compositions for the optimization of human hematopoietic progenitor cell cultures
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United States of America Patent
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Mar 21, 1995
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Aug 5, 1991
filing date -
Jun 15, 1989
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Abstract
Methods, including culture media conditions, which provide for ex vivo human stem cell division and stable genetic transformation and/or the optimization of human hematopoietic progenitor cell cultures and/or increasing the metabolism or GM-CSF secretion or IL-6 secretion of human stromal cells are disclosed. The methods rely on culturing human stem cells and/or human hematopoietic progenitor cells and/or human stromal cells in a liquid culture medium which is replaced, preferably perfused, either continuously or periodically, at a rate of 1 ml of medium per ml of culture per about 24 to about 48 hour period, and removing metabolic products and replenishing depleted nutrients while maintaining the culture under physiologically acceptable conditions. Optionally growth factors are added to the culture medium.
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