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US6294331B1 Expired / Lapsed US ⏱️ 0.0 years remaining

Methods for assessing genetic and phenotypic markers by simultaneous multicolor visualization of chromogenic dyes using brightfield microscopy and spectral imaging

Assignee: National Institutes of Health
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Filing: 1998-08-07
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Granted: 2001-09-25
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Expires: 2018-08-07
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Abstract

Abstract The present invention is directed to an improved method for detecting a genetic marker in a biological sample comprising contacting the biological sample with a nucleic acid probe linked to a detectable moiety, whereby the detectable moiety can be detected by the presence of a chromogenic dye associated with the detectable moiety, obtaining a spectral image of the biological sample using brightfield microscopy, and detecting the presence of the chromogenic dye, thereby detecting the genetic marker in the biological sample. The present invention also provides an improved method for detecting a phenotypic marker in a biological sample comprising contacting the biological sample with a compound comprising a detectable moiety, whereby the compound associates with the phenotypic marker and whereby the detectable moiety can be detected by the presence of a chromogenic dye associated with the detectable moiety, obtaining a spectral image of the biological sample using brightfield microscopy, and detecting the presence of the chromogenic dye, thereby detecting the phenotypic marker in the biological sample.

Inventors

  • 👤 Thomas Ried
  • 👤 Merryn V. E. MacVille
  • 👤 Anton H. N. Hopman

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-25 03:14
CPC Classifications
C; C12; C12Q; C12Q1/00; C12Q1/68; C12Q1/6813; C12Q1/6841

Claims Analysis

Total Claims: 8
Claim 1
Independent Claim 76 words
A method for detecting a genetic marker in a biological sample comprising: a) contacting the biological sample with a nucleic acid probe linked to a detectable moiety, whereby the detectable moiety can be detected by the presence of a chromogenic dye associated with the detectable moiety; b) obtaining a spectral image of the biological sample using brightfield microscopy; and c) detecting the presence of the chromogenic dye, thereby detecting the genetic marker in the biological sample.
Claim 2
Independent Claim 76 words
A method for detecting a genetic marker in a biological sample comprising: a) contacting the biological sample with a nucleic acid probe linked to a detectable moiety, whereby the detectable moiety can be detected by the presence of a chromogenic dye associated with the detectable moiety; b) obtaining a spectral image of the biological sample using brightfield microscopy; and c) detecting the presence of the chromogenic dye, thereby detecting the genetic marker in the biological sample.
Claim 3
Dependent Claim 22 words
The method of claim 1 , wherein the biological sample is contacted with nucleic acid probes having at least two different specificities.
Claim 4
Dependent Claim 15 words
The method of claim 1 , wherein the biological sample is attached to a substrate.
Claim 5
Dependent Claim 19 words
The method of claim 1 , wherein step (a) further comprises contacting the biological sample with a cytological stain.
Claim 6
Dependent Claim 19 words
The method of claim 1 , wherein step (c) further comprises distinguishing the cytological stain from the detectable moiety.
Claim 7
Dependent Claim 42 words
The method of claim 1 , wherein the genetic marker is selected from the group consisting of a centromere, a telomere, a general genetic loci, a specific genetic loci, a chromosome band, a chromosome-specific loci, a chromosome fragment, and a whole chromosome.
Claim 8
Dependent Claim 13 words
The method of claim 1 , wherein the detectable moiety comprises a hapten.

References Cited (Backward Citations)

WO1997021979A1 Cited
WO1997022848A1 Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 2004-09-24 2005-03-26 2005-09-25 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2008-09-24 2009-03-26 2009-09-25 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2012-09-24 2013-03-26 2013-09-25 $7700.00 Window Closed / Lapsed

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