Amplification of RNA Detection Signals in Biological Samples
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United States of America Patent
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Issued Date -
Nov 17, 2022
app pub date -
May 13, 2022
filing date -
May 14, 2021
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Abstract
Methods include contacting a biological sample with a first probe, where the first probe includes a capture moiety having an oligonucleotide sequence that selectively binds to a RNA in the sample, and a secondary oligonucleotide region that does not bind to the RNA, contacting the sample with a second probe, where the second probe includes a probe binding region that is complementary to, and hybridizes to, a portion of the secondary oligonucleotide region, and includes a reporter moiety, and extending the secondary oligonucleotide region using the second probe as a template to generate an extended secondary oligonucleotide region featuring multiple copies of the reporter moiety, where the reporter moiety includes a plurality of label regions each featuring an oligonucleotide sequence, and one or more of the label regions of the reporter moiety are different from the other label regions of the reporter moiety.
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