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Multiplex nucleic acid analysis using archived or fixed samples

  • US 20040259105A1
  • Filed: 10/03/2003
  • Published: 12/23/2004
  • Est. Priority Date: 10/03/2002
  • Status: Abandoned Application
First Claim
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1. A method for determining the expression level of target sequences in an archived tissue sample, said method comprising:

  • (a) contacting a nucleic acid molecule derived from an archived tissue sample with a plurality of probe sets under conditions where complementary probes form hybridization complexes with said target sequences, each of said probe sets comprising at least two universal priming sites and a target-specific sequence;

    (b) amplifying said probes forming said hybridization complexes to produce amplicons, each amplicon corresponding to one of said probe sets;

    (c) detecting said amplicons, wherein the detection of each of said amplicons indicates the presence of one of said plurality of target sequence in said archived tissue sample; and

    (d) determining the expression level of said target sequences.

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