Multiplexed detection with isotope-coded reporters
First Claim
1. A method for the detection of aberrant protease activity in a subject, comprising(a) administering to the subject a pro-diagnostic reagent comprising a set of isotope-coded reporter molecules (iCOREs) each conjugated to a carrier domain, wherein each iCORE comprises a mass tag conjugated to the carrier domain via a cleavable linker, under conditions suitable for cleavage of the cleavable linker by a disease-associated protease in vivo;
- (b) identifying and/or quantifying the iCOREs in a biological sample obtained from the subject; and
(c) determining that the subject has an aberrant protease activity signature based on the iCORES identified in (b).
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Abstract
Some aspects of this invention provide reagents and methods for the sensitive, quantitative and simultaneous detection of target analytes in complex biological samples by liquid chromatography tandem mass spectrometry (LC MS/MS). Some aspects of this invention provide affinity reagents encoded with mass reporters for the sensitive and quantitative translation of an analyte of interest into a mass tag. The reagents and methods provided herein have general utility in analyte detection and encoding, for example, in biomolecular profiling, molecular diagnostics, and biochemical encoding.
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Citations
18 Claims
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1. A method for the detection of aberrant protease activity in a subject, comprising
(a) administering to the subject a pro-diagnostic reagent comprising a set of isotope-coded reporter molecules (iCOREs) each conjugated to a carrier domain, wherein each iCORE comprises a mass tag conjugated to the carrier domain via a cleavable linker, under conditions suitable for cleavage of the cleavable linker by a disease-associated protease in vivo; -
(b) identifying and/or quantifying the iCOREs in a biological sample obtained from the subject; and (c) determining that the subject has an aberrant protease activity signature based on the iCORES identified in (b). - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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Specification