Cell isolation and screening device and method of using same
First Claim
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1. A method of screening cells for a desired biological activity comprising:
- providing a cell isolation device defining a plurality of cell isolation regions, each cell isolation region encompassing a recess and bioaffinity ligands, each of the cell isolation regions being sized to isolate about one to about five cells on a surface within said recess, and the cell isolation regions positioned to have a predetermined pitch with respect to one another;
delivering the about one cell to about five cells to each of the cell isolation regions;
providing a cell expansion device defining a plurality of wells wherein the position of the wells of the cell expansion device corresponds to the predetermined pitch of the cell isolation regions;
placing said cell isolation device in direct contact with said cell expansion device, inverting said cell isolation device, and transferring the about one cell to about five cells from said surface of said cell isolation regions to the wells;
allowing the about one cell to about five cells to proliferate and exhibit a desired biological activity in the wells;
assaying the desired biological activity of the one cell to about five cells.
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Abstract
The present invention provides methods and devices for screening a single cell or a small group of cells for a desired biological activity. In particular, the present invention provides for delivering cell(s) to a plurality of cell isolation regions of a cell isolation device, transferring cell(s) to a plurality of wells of a cell expansion device and then detecting the potential desired biological activity of the cell(s). Each of the receptacles comprise a recess sized to isolate a single cell or small group of cells and each of the wells encompass a cavity that provides sufficient volume for cell proliferation.
94 Citations
21 Claims
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1. A method of screening cells for a desired biological activity comprising:
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providing a cell isolation device defining a plurality of cell isolation regions, each cell isolation region encompassing a recess and bioaffinity ligands, each of the cell isolation regions being sized to isolate about one to about five cells on a surface within said recess, and the cell isolation regions positioned to have a predetermined pitch with respect to one another; delivering the about one cell to about five cells to each of the cell isolation regions; providing a cell expansion device defining a plurality of wells wherein the position of the wells of the cell expansion device corresponds to the predetermined pitch of the cell isolation regions; placing said cell isolation device in direct contact with said cell expansion device, inverting said cell isolation device, and transferring the about one cell to about five cells from said surface of said cell isolation regions to the wells; allowing the about one cell to about five cells to proliferate and exhibit a desired biological activity in the wells; assaying the desired biological activity of the one cell to about five cells. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A kit for screening cells for a desired biological activity, the kit comprising:
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a cell isolation device defining a plurality of cell isolation regions, each cell isolation region encompassing a recess and bioaffinity ligands, each of the cell isolation regions being sized to isolate about one to about five cells therein, and the cell isolation regions further defining a predetermined pitch with respect to one another; and a cell expansion device defining a plurality of wells wherein the wells of the cell expansion device correspond to respective regions of the cell-isolation device, and the wells define a predetermined pitch matching the predetermined pitch of the cell isolation regions wherein when said cell isolation device is placed in direct contact with said cell expansion device and said cell isolation device is inverted said one cell to about five cells may be transferred from said surface of said cell isolation regions to said wells. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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Specification