Detection of plurality of targets in biological samples
First Claim
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1. A method of detecting at least three sets of different targets in a biological sample via simultaneous addition of at least three sets of different target-binding probes followed by their sequential detection, the method comprising:
- (a) simultaneously contacting the at least three sets of different targets with the at least three sets of different target-binding probes to form a plurality of target-bound probes;
(b) covalently attaching each of the plurality of target-bound probes of step (a) to the corresponding target or to a molecule that is located in the vicinity of the corresponding target in the biological sample to form a plurality of covalently attached probes; and
(c) sequentially detecting the plurality of covalently attached probes of step (b) to sequentially detect each set of different target, wherein the sequential detection comprises;
(i) generating a first set of signals from a first set of probes in the plurality of covalently attached probes by contacting a first set of signal-generating probes that are capable of binding to the first set of probes;
(ii) detecting a first set of targets via observing the first set of signals that is generated in step (i);
(iii) modifying the observed first set of signals by applying a chemical agent after step (ii);
(iv) generating a second set of signals after step (iii) from a second set of probes in the plurality of covalently attached probes by contacting a second set of signal-generating probes that are capable of binding to the second set of probes;
(v) detecting a second set of targets via observing the second set of signals that is generated in step (iv);
(vi) modifying the observed second set of signals by applying a chemical agent after step (v); and
(vii) generating a subsequent set of signals from a subsequent set of probes in the plurality of covalently attached probes, detecting a subsequent set of targets via observing the subsequent set of signals, modifying the observed subsequent set of signals by applying a chemical agent, and repeating these steps till all sets of different targets are detected.
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Abstract
Methods for detecting a plurality of targets in a biological sample are provided. The method comprises contacting the biological sample with a plurality of target-binding probes to form a plurality of target-bound probes, covalently attaching at least one of the target-bound probes to the biological sample, and observing the signals from the target-bound probes sequentially. An associated kit and device for detection of the plurality of targets are also provided.
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Citations
11 Claims
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1. A method of detecting at least three sets of different targets in a biological sample via simultaneous addition of at least three sets of different target-binding probes followed by their sequential detection, the method comprising:
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(a) simultaneously contacting the at least three sets of different targets with the at least three sets of different target-binding probes to form a plurality of target-bound probes; (b) covalently attaching each of the plurality of target-bound probes of step (a) to the corresponding target or to a molecule that is located in the vicinity of the corresponding target in the biological sample to form a plurality of covalently attached probes; and (c) sequentially detecting the plurality of covalently attached probes of step (b) to sequentially detect each set of different target, wherein the sequential detection comprises; (i) generating a first set of signals from a first set of probes in the plurality of covalently attached probes by contacting a first set of signal-generating probes that are capable of binding to the first set of probes; (ii) detecting a first set of targets via observing the first set of signals that is generated in step (i); (iii) modifying the observed first set of signals by applying a chemical agent after step (ii); (iv) generating a second set of signals after step (iii) from a second set of probes in the plurality of covalently attached probes by contacting a second set of signal-generating probes that are capable of binding to the second set of probes; (v) detecting a second set of targets via observing the second set of signals that is generated in step (iv); (vi) modifying the observed second set of signals by applying a chemical agent after step (v); and (vii) generating a subsequent set of signals from a subsequent set of probes in the plurality of covalently attached probes, detecting a subsequent set of targets via observing the subsequent set of signals, modifying the observed subsequent set of signals by applying a chemical agent, and repeating these steps till all sets of different targets are detected. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification