METHODS FOR PRODUCING AND PREPARING CELLS FOR CELL THERAPY

摘要

The invention features methods for expansion and packaging of cells. Expansi on is achieved by providing cells that include neural progenitor cells; plating the cells in culture vessels at an average density of 1 X 105 to 7 X 105 cells/cm2; and culturing said cells in culture medium and under conditions permissible for proliferation of said neural progenitor cells, wherein the volume of medium results in an initial cell density of between 5 X 104 and 1 .5 X 105 cells per milliliter of medium. Preparation of cells for transplantati on includes providing a cell suspension that includes single cells, aggregates of fewer than two hundred cells, or a combination thereof; and re-aggregating t he cells in said cell suspension, wherein greater than 50 % of reaggregates consist of between 25 and 500 cells/reaggregate.