HCV antigen-antibody combination assay and methods and compositions for use therein
First Claim
Patent Images
1. A method for the combined detection of an HCV antigen and an HCV antibody in a test sample, the method comprising:
- a) providing the following components;
i. a solid phase comprising a tagged anti-HCV core monoclonal antibody and a first tagged HCV capture antigen bound thereto, wherein the anti-HCV core monoclonal antibody binds an HCV core antigen in the test sample and the first HCV capture antigen binds a first anti-HCV antibody in the test sample, and wherein the first HCV capture antigen consisting of the amino acid sequence of SEQ ID NO;
97, 98, 99, 100, 102, 103, 104, 105, or 106; and
ii. a first detectably labeled HCV detection antigen for binding to the first anti-HCV antibody captured by the first HCV capture antigen;
b) incubating the components of step (a) under conditions whereby;
i. the tagged anti-HCV core monoclonal antibody specifically binds to the HCV core antigen present in the test sample to produce an anti-HCV core monoclonal antibody-HCV core antigen complex captured on the solid phase;
ii. the first tagged HCV capture antigen specifically binds to the first anti-HCV antibody present in the test sample to produce a first HCV capture antigen-first anti-HCV antibody complex captured on the solid phase; and
iii. the first detectably labeled HCV detection antigen specifically binds to the anti-HCV antibody of the first HCV capture antigen-first anti-HCV antibody complex captured on the solid phase;
c) isolating the solid phase comprising the captured HCV antigen and the first captured anti-HCV antibody from unreacted test sample and reagents;
d) contacting the isolated solid phase with a detectably labeled conjugate antibody that binds to the HCV core antigen of the anti-HCV core monoclonal antibody-HCV core antigen complex; and
e) detecting;
i. a first signal generated from the detectably labeled conjugate antibody, wherein presence of the first signal indicates presence of the HCV core antigen in the test sample; and
ii. a second signal generated from the first detectably labeled HCV detection antigen, wherein presence of the second signal indicates presence of the first anti-HCV antibody in the test sample.
2 Assignments
0 Petitions
Accused Products
Abstract
The present invention generally relates to combination immunoassays, reagents and kits for simultaneous detection of HCV antigens and anti-HCV antibodies in a test sample.
-
Citations
4 Claims
-
1. A method for the combined detection of an HCV antigen and an HCV antibody in a test sample, the method comprising:
-
a) providing the following components; i. a solid phase comprising a tagged anti-HCV core monoclonal antibody and a first tagged HCV capture antigen bound thereto, wherein the anti-HCV core monoclonal antibody binds an HCV core antigen in the test sample and the first HCV capture antigen binds a first anti-HCV antibody in the test sample, and wherein the first HCV capture antigen consisting of the amino acid sequence of SEQ ID NO;
97, 98, 99, 100, 102, 103, 104, 105, or 106; andii. a first detectably labeled HCV detection antigen for binding to the first anti-HCV antibody captured by the first HCV capture antigen; b) incubating the components of step (a) under conditions whereby; i. the tagged anti-HCV core monoclonal antibody specifically binds to the HCV core antigen present in the test sample to produce an anti-HCV core monoclonal antibody-HCV core antigen complex captured on the solid phase; ii. the first tagged HCV capture antigen specifically binds to the first anti-HCV antibody present in the test sample to produce a first HCV capture antigen-first anti-HCV antibody complex captured on the solid phase; and iii. the first detectably labeled HCV detection antigen specifically binds to the anti-HCV antibody of the first HCV capture antigen-first anti-HCV antibody complex captured on the solid phase; c) isolating the solid phase comprising the captured HCV antigen and the first captured anti-HCV antibody from unreacted test sample and reagents; d) contacting the isolated solid phase with a detectably labeled conjugate antibody that binds to the HCV core antigen of the anti-HCV core monoclonal antibody-HCV core antigen complex; and e) detecting; i. a first signal generated from the detectably labeled conjugate antibody, wherein presence of the first signal indicates presence of the HCV core antigen in the test sample; and ii. a second signal generated from the first detectably labeled HCV detection antigen, wherein presence of the second signal indicates presence of the first anti-HCV antibody in the test sample. - View Dependent Claims (2, 3, 4)
-
Specification