HCV assay

Chemistry: molecular biology and microbiology – Measuring or testing process involving enzymes or... – Involving virus or bacteriophage

Reexamination Certificate

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C435S007100, C435S235100, C424S189100, C424S192100, C424S228100

Reexamination Certificate

active

10658782

ABSTRACT:
An HCV antigen/antibody/antigen assay is provided. The assay employs an isolated first antigen from a region of the HCV polyprotein, and an HCV multiple epitope fusion antigen that includes an epitope from the same region of the polyprotein as the first antigen. Both the first antigen and the multiple epitope fusion antigen bind antibodies present in an HCV-infected sample.

REFERENCES:
patent: 5350671 (1994-09-01), Houghton et al.
patent: 5712087 (1998-01-01), Houghton et al.
patent: 5843752 (1998-12-01), Dasmahapatra et al.
patent: 5871904 (1999-02-01), Kashiwakuma et al.
patent: 5990276 (1999-11-01), Zhang et al.
patent: 6171782 (2001-01-01), Houghton et al.
patent: 6210675 (2001-04-01), Highfield et al.
patent: 6306579 (2001-10-01), Seidel et al.
patent: 6428792 (2002-08-01), Valenzuela et al.
patent: 6632601 (2003-10-01), Chien et al.
patent: 6797809 (2004-09-01), Chien et al.
patent: 318216 (1989-05-01), None
patent: 388232 (1990-09-01), None
patent: 0450931 (1991-10-01), None
patent: 0472207 (1992-02-01), None
patent: WO 93/00365 (1993-01-01), None
patent: WO 94/01778 (1994-01-01), None
patent: WO 97/44469 (1997-11-01), None
patent: WO 01/96870 (2001-12-01), None
Chien et al. (1999) Journal of Clinical Microbiology, vol. 37, No. 5; p. 1393-97.
Choo, Q.L. et al. Genetic organization and diversity of the hepatitis C virus (1991) Proc. Natl. Acad. Sci., 88:2451-2455.
Wang et al., “Molecular design and immunogenicity studies of multiple antigenic peptide corresponding to envelope glycoprotein hypervariable region 1 of hepatitis C virus (abstract).” Chinese J. Exp. Clin. Virol., Jun. 2000, vol. 14, No. 2.
Puntoriero et al., “Towards a solution for hepatitis C virus hypervariability: mimotopes of the hypervariable region 1 can induce antibodies cross-reacting with a large number of viral variants,” The EMBO Journal, vol. 17, No. 13 (1998), pp. 321-3533.
Beld et al., “Evaluation of automated RNA-extraction technology and a qualitative HCV assay for sensitivity and detection of HCV RNA in pool-screening systems,”Transfusion40:575-579, 2000.
Chen et al., “Human and murine antibody recognition is focused on the ATPase/helicase domain, but not the protease domain of the hepatitis C virus non-structural 3 protein,”Hepatology28:219-224, 1998.
Chien et al., “Diagnosis of Hepatitis C Virus (HCV) Infection Using an Immunodominant Chimeric Polyprotein to Capture Circulating Antibodies: Reevaluation of the Role of HCV in Liver Disease,”Proc. Natl. Acad. Sci. U.S.A. 89: 10011-10015 (1992).
Chien et al., “Use of Recombinant HCV Antigen in the Serodiagnosis of Hepatitis C Virus Infection: Significant Improvement in HCV Antibody Detection as Compared with the First Generation HCV C100-3 ELISA and the Synthetic Peptide EIA Tests,”Journal of Gastroenterology Hepatology8:S33-39 (1993).
Chien et al., “Distinct subtypes of hepatitis C virus defined by antibodies directed to the putative core, NS4, and NS5 region polypeptides,”Virol. Hepatitis and Liver Disease:320-324, 1994.
Choo et al., “Isolation of a cDNA Clone Derived from a Blood-Borne Non-A, Non-B Viral Hepatits Genome,”Science244:359-362 (1989).
Choo et al., “Hepatitis C Virus: The Major Causative Agent of Viral Non-A, Non-B Hepatitis,”British Medical Bulletin46(2):423-441 (1990).
Cruse et al., Illustrated Dictionary of Immunology, CRC Press, Boca Raton FL, 1995, p. 76.
Ebeling et al., “Recombinant Immunoblot Assay for Hepatitis C Virus Antibody as Predictor of Infectivity,”Lancet335:982-983 (1990).
Houghton et al., “Molecular Biology of the Hepatitis C Viruses: Implications for Diagnos, Development and Control of Viral Disease,”Hepatology14:381-388 (1991).
Kotwal et al., “Detection of acute hepatitis C virus infection by ELISA using a synthetic peptide comprising a structural epitope,”Proc. Natl. Acad. Sci. USA89:4486-4489, 1992.
Kuo et al.,“An Assay for Circulating Antibodies to a Major Etiologic Virus of Human Non-A, Non-B Hepatitis,”Science244:362-364 (1989).
Pereboeva et al., “Hepatitis C Epitopes From Phage-Displayed cDNA Libraries and Improved Diagnosis with a Chimeric Antigen,”J. Medical Virology60:144-151, 2000.
Van der Poel et al., “Infectivity of Blood Seropositve for Hepatitis C Virus Antibodies,”Lancet335:558-560 (1990).
Van der Poel et al., “Confirmation of hepatitis C virus infection by new four-antigen recombinant immunoblot assay,”Lancet337:317-319, 1991.
Yao et al., “Molecular views of viral polyprotein processing revealed by the crystal structure of the hepatitis C virus bifunctional protease-helicase,” Structure 7(11):1353-1363, 1999.
Chien et al., “Use of a Novel Hepatitis C Virus (HCV) Major-Epitope Chimeric Polypeptide for Diagnosis of HCV Infection,” Journal of Clinical Microbiology, 37(5):1393-1397 (1999).

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