Chemistry: molecular biology and microbiology – Virus or bacteriophage – except for viral vector or...
Reexamination Certificate
2000-03-06
2002-12-31
Park, Hankyel T. (Department: 1648)
Chemistry: molecular biology and microbiology
Virus or bacteriophage, except for viral vector or...
C435S007100, C435S325000, C435S372200, C424S229100, C424S230100, C536S023720
Reexamination Certificate
active
06500663
ABSTRACT:
FIELD OF THE INVENTION
This invention relates to a novel isolated herpesvirus that is associated with Kaposi's sarcoma (KS). Methods and compositions relating to the detection and treatment of the virus and KS are described.
BACKGROUND OF THE INVENTION
Throughout this application, various publications may be referenced by Arabic numerals in brackets. Full citations for these publications may be found at the end of the specification immediately preceding the claims. The disclosures of the publications cited herein are in their entirety hereby incorporated by reference into this application to more fully describe the state of the art to which this invention pertains.
Kaposi's sarcoma (KS) is the most common neoplasm occurring in persons with acquired immunodeficiency syndrome (AIDS). Approximately 15-20% of AIDS patients develop this neoplasm which rarely occurs in immunocompetent individuals [13, 14]. Epidemiologic evidence suggests that AIDS-associated KS (AIDS-KS) has an infectious etiology. Gay and bisexual AIDS patients are approximately twenty times more likely than hemophiliac AIDS patients to develop KS, and KS may be associated with specific sexual practices among gay men with AIDS [6, 15, 55, 83]. KS is uncommon among adult AIDS patients infected through heterosexual or parenteral HIV transmission, or among pediatric AIDS patients infected through vertical HIV transmission [77]. Agents previously suspected of causing KS include cytomegalovirus, hepatitis B virus, human papillomavirus, Epstein-Barr virus, human herpesvirus 6, human immunodeficiency virus (HIV), and Mycoplasma penetrans [18, 23, 85, 91, 92]. Non-infectious environmental agents, such as nitrite inhalants, also have been proposed to play a role in KS tumorigenesis [33]. Extensive investigations, however, have not demonstrated an etiologic association between any of these agents and AIDS-KS [37, 44, 46, 90].
SUMMARY OF THE INVENTION
This invention provides an isolated DNA molecule which is at least 30 nucleotides in length and which uniquely defines a herpesvirus associated with Kaposi's sarcoma. This invention provides an isolated herpesvirus associated with Kaposi's sarcoma.
This invention provides an isolated peptide encoded by the isolated DNA molecule. Further, this invention provides an isolated DNA virus wherein the viral DNA is about 270 kb in size; wherein the DNA encodes a thymidine kinase; and wherein the viral DNA is capable of selectively hybridizing to a nucleic acid probe selected from the group consisting of SEQ. ID NOs:10-12.
This invention provides an antibody specific to the peptide. Antisense and triplex oligonucleotide molecules are also provided. Further, this invention provides a transgenic nonhuman mammal and a cell line containing at least a portion of the isolated DNA molecule.
This invention provides a method of vaccinating a subject for KS, prophylaxis diagnosing or treating a subject with KS and detecting expression of a DNA virus associated with Kaposi's sarcoma in a cell.
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patent: 5861240 (1999-01-01), Ganem
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Chang Yuan
Moore Patrick S.
Cooper & Dunham LLP
Park Hankyel T.
The Trustees of Columbia University in the City of New York
White John P.
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