METHODS, KITS, AND SYSTEMS FOR MULTIPLEXED DETECTION OF TARGET MOLECULES AND USES THEREOF
First Claim
1. A method for detecting a plurality of target protein molecules in a sample comprising:
- a. contacting a sample with a composition comprising a plurality of target probes, wherein each target probe in the plurality comprises;
i. a target-binding molecule that specifically binds to a distinct target molecule in the sample;
ii. an identification nucleotide sequence that identifies the target-binding molecule; and
iii. a cleavable linker between the target-binding molecule and the identification nucleotide sequence;
b. separating unbound target probes from a plurality of complexes in the sample, each complex having a target protein molecule and a single target probe bound thereto, wherein the complex does not have a second target probe binding to a different region of the target protein molecule;
c. releasing the identification nucleotide sequences from the plurality of complexes; and
d. detecting signals from the released identification nucleotide sequences based on a non-gel electrophoresis method, wherein the signals are distinguishable for the identification nucleotide sequences, thereby identifying the corresponding target-binding molecules and detecting a plurality of different target molecules in the sample.
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Abstract
Described herein are methods, compositions, kits and systems for multiplexed detection of target molecules from a sample. In some embodiments, the methods, compositions, kits and systems can be used to perform multiplexed protein analysis of a sample (e.g., a sample comprising a small number of cells or a single-cell sample). In some embodiments, the same sample subjected to a multiplexed protein analysis using the methods, compositions, kits and systems described herein can also be subjected to a nucleic acid (e.g., RNAs, microRNAs, and/or DNA) analysis, thereby creating an integrated expression profiling from a limited amount of sample.
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Citations
87 Claims
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1. A method for detecting a plurality of target protein molecules in a sample comprising:
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a. contacting a sample with a composition comprising a plurality of target probes, wherein each target probe in the plurality comprises; i. a target-binding molecule that specifically binds to a distinct target molecule in the sample; ii. an identification nucleotide sequence that identifies the target-binding molecule; and iii. a cleavable linker between the target-binding molecule and the identification nucleotide sequence; b. separating unbound target probes from a plurality of complexes in the sample, each complex having a target protein molecule and a single target probe bound thereto, wherein the complex does not have a second target probe binding to a different region of the target protein molecule; c. releasing the identification nucleotide sequences from the plurality of complexes; and d. detecting signals from the released identification nucleotide sequences based on a non-gel electrophoresis method, wherein the signals are distinguishable for the identification nucleotide sequences, thereby identifying the corresponding target-binding molecules and detecting a plurality of different target molecules in the sample. - View Dependent Claims (67, 68, 69, 70, 71, 72, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85)
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2-66. -66. (canceled)
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73. The method of claim wherein the releasing of the identification nucleotide sequences from the bound target probes comprises exposing the bound target probes to ultraviolet light.
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86. A kit for multiplexed detection of a plurality of different target molecules from a sample comprising:
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a. a plurality of target probes, wherein each target probe in the plurality comprises; i. a target-binding molecule that specifically binds to a distinct target molecule in the sample; ii. an identification nucleotide sequence that identifies the target-binding molecule; and iii. a cleavable, non-hybridizable linker between the target-binding molecule and the identification nucleotide sequence; b. a plurality of reporter probes, wherein each reporter probe comprises; i. a first target probe-specific region that is capable of binding a first portion of the identification nucleotide sequence; and ii. a detectable label that identifies the reporter probe. - View Dependent Claims (87)
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Specification