ACETAMINOPHEN-PROTEIN ADDUCT ASSAY DEVICE AND METHOD
First Claim
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1. A device for use in conducting a competitive assay, wherein the device detects an amount of APAP-protein adduct in a sample, the device comprising:
- a. an amount of anti-APAP antibody coupled to an indicator; and
,b. an amount of synthetic APAP-protein adduct.
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Abstract
The present invention describes devices and methods for detecting and measuring the amount of acetaminophen-protein adducts in a sample.
8 Citations
54 Claims
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1. A device for use in conducting a competitive assay, wherein the device detects an amount of APAP-protein adduct in a sample, the device comprising:
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a. an amount of anti-APAP antibody coupled to an indicator; and
,b. an amount of synthetic APAP-protein adduct. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A device for use in conducting a competitive assay, wherein the device detects an amount of APAP-protein adduct in a sample, the device comprising:
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a. an amount of synthetic APAP-protein adduct coupled to an indicator; and
,b. an amount of anti-APAP antibody. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A device for use in conducting a sandwich assay, wherein the device detects an amount of APAP-protein adduct in a sample, the device comprising:
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a. an amount of a first anti-APAP antibody coupled to an indicator, wherein an antigenic determinant recognized by the first anti-APAP antibody is selected from the group consisting of a 3-(cysteine-S-yl) linkage of the APAP-protein adduct, an exposed portion of the APAP in the APAP-protein adduct, and an APAP hapten; and
,b. an amount of a second anti-APAP antibody, wherein a second antigenic determinant recognized by the second anti-APAP antibody is selected from the group consisting of a 3-(cysteine-S-yl) linkage of the APAP-protein adduct, an exposed portion of the APAP in the APAP-protein adduct, and an APAP hapten. - View Dependent Claims (16, 17, 18)
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19. A device for use in conducting a sandwich assay, wherein the device detects an amount of APAP-protein adduct in a sample, the device comprising:
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a. an amount of a first anti-APAP antibody coupled to an indicator, wherein the antigenic determinant recognized by the first anti-APAP antibody is selected from the group consisting of a 3-(cysteine-S-yl) linkage of the APAP-protein adduct, an exposed portion of the APAP in the APAP-protein adduct, and an APAP hapten; and
,b. an amount of a second anti-APAP antibody, wherein the antigenic determinant recognized by the second anti-APAP antibody is an antigenic determinant of a protein selected from the group consisting of a protein forming an APAP-protein adduct and a protein forming an APAP-protein complex. - View Dependent Claims (20, 21, 22)
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23. A device for detecting an APAP-protein adduct comprising an anti-APAP antibody.
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24. A dipstick device for detecting and quantifying an APAP-protein adduct in a sample, the device comprising:
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a. an amount of a synthetic APAP-protein adduct coupled to a nanoparticulate gold indicator, wherein the synthetic APAP-protein adduct is diffusively attached at a sample contact end of a substrate; and
,b. an amount of an anti-APAP antibody, wherein the anti-APAP antibody is adhered to the substrate in a test zone, and wherein an antigenic determinant recognized by the anti-APAP antibody is APAP bound to a protein, wherein the protein comprises at least one cysteine residue. - View Dependent Claims (25, 26, 27)
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28. A dipstick device for detecting and quantifying an APAP-protein adduct in a sample, the device comprising:
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a. an amount of a synthetic APAP-protein adduct , wherein the synthetic APAP-protein adduct is adhered to a substrate in a test zone, and wherein the synthetic APAP-protein adduct is selected from the group consisting of APAP bound to BSA, APAP bound to ovalbumin, APAP bound to lactalbumin and combinations thereof; and
,b. an amount of an anti-APAP antibody coupled to a nanoparticulate gold indicator, wherein the anti-APAP antibody is diffusively attached at a sample contact end of the substrate, and wherein an antigenic determinant recognized by the anti-APAP antibody is APAP bound to a protein comprising at least one cysteine residue. - View Dependent Claims (29, 30)
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31. A dipstick device for detecting and quantifying an APAP-protein adduct in a sample, the device comprising:
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a. an amount of a first anti-APAP antibody coupled to a nanoparticulate gold indicator, wherein the first anti-APAP antibody is diffusively attached at a sample contact end of a substrate, and wherein an antigenic determinant recognized by the first anti-APAP antibody is selected from the group consisting of a 3-(cysteine-S-yl) linkage of the APAP-protein adduct, an exposed portion of the APAP in the APAP-protein adduct, and an APAP hapten; and
,b. an amount of a second anti-APAP antibody adhered to the substrate in a test zone, wherein an antigenic determinant of the second anti-APAP antibody is selected from the group consisting of a 3-(cysteine-S-yl) linkage of the APAP-protein adduct, an exposed portion of the APAP in the APAP-protein adduct, and an APAP hapten. - View Dependent Claims (32)
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33. A dipstick device for detecting and quantifying an APAP-protein adduct in a sample, the device comprising:
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a. an amount of a first anti-APAP antibody coupled to a nanoparticulate gold indicator, wherein the first anti-APAP antibody is diffusively attached to a sample contact end of a substrate, and wherein an antigenic determinant recognized by the first anti-APAP antibody is selected from the group consisting of a 3-(cysteine-S-yl) linkage of the APAP-protein adduct, an exposed portion of the APAP in the APAP-protein adduct, and an APAP hapten; and
,b. an amount of a second anti-APAP antibody adhered to the substrate in a test zone, wherein the antigenic determinant recognized by the second anti-APAP antibody is a segment of a protein selected from the group consisting of a protein forming an APAP-protein adduct and a protein forming an APAP-protein complex. - View Dependent Claims (34)
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35. A method of determining an amount of APAP-protein adduct in a sample, comprising:
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a. contacting an amount of the sample with a substrate comprising an anti-APAP antibody coupled to an indicator and further comprising a synthetic APAP-protein adduct; and
,b. determining the amount of APAP-protein adduct in the sample by measuring an indicator change caused by inhibition of binding of the synthetic APAP-protein adduct to the anti-APAP antibody coupled to the indicator. - View Dependent Claims (36, 37, 38, 39, 40, 41)
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42. A method of determining an amount of APAP-protein adduct in a sample, comprising:
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a. contacting an amount of the sample with a substrate comprising an amount of a synthetic APAP-protein adduct coupled to an indicator and further comprising an anti-APAP antibody; and
,b. determining an amount of APAP-protein adduct in a sample by measuring an indicator change caused by inhibition of binding of the anti-APAP antibody to the synthetic APAP-protein adduct coupled to an indicator. - View Dependent Claims (43, 44, 45, 46, 47, 48)
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49. A method of determining an amount of an APAP-protein adduct in a sample, comprising:
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a. contacting an amount of the sample with a substrate comprising an amount of a first anti-APAP antibody conjugated with an indicator and further comprising a second anti-APAP antibody; and
,b. determining the amount of APAP-protein adduct in the sample by measuring indicator changes caused by the binding of the APAP-protein adduct to the first anti-APAP antibody and to the second anti-APAP antibody. - View Dependent Claims (50, 51, 52, 53, 54)
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Specification