Employing methods of DNA-mediated gene transfer, we propose to define and analyze Epstein-Barr virus genes which play important biologic roles in the processes of latency, viral replication and lymphocyte immortalization. We have recently found that unusual forms of EBV DNA, resembling herpes virus """"""""defective"""""""" DNA, seem to be responsible for interrupting latency and activating the viral genome. We plan to define the structure and examine the biologic function of this """"""""heterogeneous"""""""" DNA. We have identified a second EB nuclear antigen encoded or induced by the Bam HI M fragment. We will define the limits of this gene and identify polypeptides which are its products. We will locate, by means of gene transfer techniques, EBV genome regions which encode viral membrane antigens, early antigens and capsid antigens. We will continue efforts to describe portions of EBV DNA which are important in the process of lymphocyte immortalization. These efforts will include examination of the expression of selected EBV genes such as EBER's and EBNA's during the course of immortalization. We shall attempt to transform both lymphoid and other differentiated cells with EBV DNA fragments. We will develop methods of transfer of foreign DNA into human lymphocytes. Taken together the studies should ultimately contribute understanding of the biologic processes which underlie the involvement of EBV with an increasing number of diverse malignant lymphoproliferative diseases of man.

Agency
National Institute of Health (NIH)
Institute
National Cancer Institute (NCI)
Type
Research Project (R01)
Project #
5R01CA012055-16
Application #
3163599
Study Section
Experimental Virology Study Section (EVR)
Project Start
1979-01-01
Project End
1988-12-31
Budget Start
1987-01-01
Budget End
1987-12-31
Support Year
16
Fiscal Year
1987
Total Cost
Indirect Cost
Name
Yale University
Department
Type
DUNS #
082359691
City
New Haven
State
CT
Country
United States
Zip Code
06520
Park, Richard; Miller, George (2018) Epstein-Barr Virus-Induced Nodules on Viral Replication Compartments Contain RNA Processing Proteins and a Viral Long Noncoding RNA. J Virol 92:
Gorres, Kelly L; Daigle, Derek; Mohanram, Sudharshan et al. (2016) Valpromide Inhibits Lytic Cycle Reactivation of Epstein-Barr Virus. MBio 7:e00113
Wang'ondu, Ruth; Teal, Stuart; Park, Richard et al. (2015) DNA Damage Signaling Is Induced in the Absence of Epstein-Barr Virus (EBV) Lytic DNA Replication and in Response to Expression of ZEBRA. PLoS One 10:e0126088
Gorres, Kelly L; Daigle, Derek; Mohanram, Sudharshan et al. (2014) Activation and repression of Epstein-Barr Virus and Kaposi's sarcoma-associated herpesvirus lytic cycles by short- and medium-chain fatty acids. J Virol 88:8028-44
Park, Richard; El-Guindy, Ayman; Heston, Lee et al. (2014) Nuclear translocation and regulation of intranuclear distribution of cytoplasmic poly(A)-binding protein are distinct processes mediated by two Epstein Barr virus proteins. PLoS One 9:e92593
McAllister, Shane C; Shedd, Duane; Mueller, Nancy E et al. (2014) Serum IgA to Epstein-Barr virus early antigen-diffuse identifies Hodgkin's lymphoma. J Med Virol 86:1621-8
El-Guindy, Ayman; Ghiassi-Nejad, Maryam; Golden, Sean et al. (2013) Essential role of Rta in lytic DNA replication of Epstein-Barr virus. J Virol 87:208-23
Yu, Kuan-Ping; Heston, Lee; Park, Richard et al. (2013) Latency of Epstein-Barr virus is disrupted by gain-of-function mutant cellular AP-1 proteins that preferentially bind methylated DNA. Proc Natl Acad Sci U S A 110:8176-81
Daigle, Derek; Gradoville, Lyn; Tuck, David et al. (2011) Valproic acid antagonizes the capacity of other histone deacetylase inhibitors to activate the Epstein-barr virus lytic cycle. J Virol 85:5628-43
Park, Richard; Wang'ondu, Ruth; Heston, Lee et al. (2011) Efficient induction of nuclear aggresomes by specific single missense mutations in the DNA-binding domain of a viral AP-1 homolog. J Biol Chem 286:9748-62

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