Methods of identifying multiple epitopes in cells
DCFirst Claim
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1. A method of uniquely labeling target molecules within a plurality of cells, the method comprising:
- (a) coupling a common linker sequence to target molecules within the plurality of cells;
(b) dividing the plurality of cells into at least two primary reaction volumes, the at least two primary reaction volumes comprising a first primary reaction volume and a second primary reaction volume;
(c) providing primary nucleic acid tags to the at least two primary reaction volumes, wherein the primary nucleic acid tags provided to the first reaction volume are different from the primary nucleic acid tags provided to a second reaction volume;
(d) coupling the common linker sequences within each of the at least two primary reaction volumes with the provided primary nucleic acid tags;
(e) pooling the at least two primary reaction volumes;
(f) splitting the combined primary reaction volumes into at least two secondary reaction volumes, the at least two secondary reaction volumes comprising a first secondary reaction volume and a second secondary reaction volume;
(g) providing secondary nucleic acid tags to each of the at least two secondary reaction volumes, wherein the secondary nucleic acid tags provided to the first secondary reaction volume are different from the secondary nucleic acid tags provided to the second reaction volume; and
(h) coupling the target molecules within each of the at least two secondary reaction volumes with the provided secondary nucleic acid tags.
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Abstract
The invention provides methods, compositions, kits and devices for the detection of target molecules. In some embodiments, the invention allows for multiplexed target molecule detection.
87 Citations
22 Claims
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1. A method of uniquely labeling target molecules within a plurality of cells, the method comprising:
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(a) coupling a common linker sequence to target molecules within the plurality of cells; (b) dividing the plurality of cells into at least two primary reaction volumes, the at least two primary reaction volumes comprising a first primary reaction volume and a second primary reaction volume; (c) providing primary nucleic acid tags to the at least two primary reaction volumes, wherein the primary nucleic acid tags provided to the first reaction volume are different from the primary nucleic acid tags provided to a second reaction volume; (d) coupling the common linker sequences within each of the at least two primary reaction volumes with the provided primary nucleic acid tags; (e) pooling the at least two primary reaction volumes; (f) splitting the combined primary reaction volumes into at least two secondary reaction volumes, the at least two secondary reaction volumes comprising a first secondary reaction volume and a second secondary reaction volume; (g) providing secondary nucleic acid tags to each of the at least two secondary reaction volumes, wherein the secondary nucleic acid tags provided to the first secondary reaction volume are different from the secondary nucleic acid tags provided to the second reaction volume; and (h) coupling the target molecules within each of the at least two secondary reaction volumes with the provided secondary nucleic acid tags. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A method of labeling nucleic acid molecules within a first cell, the method comprising:
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(a) generating complementary DNAs (cDNAs) within a plurality of cells comprising the first cell by performing reverse transcription using a unique binding agent (UBA) that is complementary to a target RNA as a reverse transcription primer; (b) dividing the plurality of cells into a number (n) of reaction volumes; (c) providing a plurality of nucleic acid tags to each of the n reaction volumes, each nucleic acid tag comprising; a first nucleic acid strand comprising an annealing region at both the 3′
end and the 5′
end of a detectably distinct coding unit; anda second template nucleic acid strand comprising an overhang sequence, the overhang sequence comprising (i) a first annealing region that is complementary to at least one of the annealing region at the 5′
end of the first nucleic acid strand and the annealing region at the 5′
end of the unique binding agent, and (ii) a second annealing region that is complementary to the annealing region at the 3′
end of the first nucleic acid strand; andwherein each detectably distinct coding unit of the plurality of nucleic acid tags provided into a given reaction volume is the same, and wherein a different detectably distinct coding unit is provided into each of the n reaction volumes; (d) binding at least one of the cDNAs in each of the n reaction volumes to the nucleic acid tags; (e) pooling then reaction volumes; and (f) repeating steps (b), (c), (d), and (e) with the pooled reaction volumes.
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22. A method of barcoding nucleic acids within a cell, the method comprising:
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a) generating complementary DNAs (cDNAs) within a plurality of cells by performing reverse transcription using a unique binding agent (UBA) that is complementary to a target RNA as a reverse transcription primer; (b) dividing the plurality of cells into at least two reaction volumes; (c) providing a plurality of nucleic acid tags to each of the at least two reaction volumes, each nucleic acid tag comprising; a first nucleic acid strand comprising an annealing region at both the 3′
end and the 5′
end of a detectably distinct coding unit; anda second template nucleic acid strand comprising an overhang sequence, the overhang sequence comprising (i) a first annealing region that is complementary to at least one of the annealing region at the 5′
end of the first nucleic acid strand and the annealing region at the 5′
end of the unique binding agent, and (ii) a second annealing region that is complementary to the annealing region at the 3′
end of the first nucleic acid strand; andwherein each detectably distinct coding unit of the plurality of nucleic acid tags provided into a given reaction volume is the same, and wherein a different detectably distinct coding unit is provided into each reaction volume; (d) binding at least one of the cDNAs in each of the at least two reaction volumes to the nucleic acid tags; (e) pooling the at least two reaction volumes; and (f) repeating steps (b), (c), (d), and (e) at least once with the pooled reaction volumes.
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Specification