Kaposi's sarcoma associated herpesvirus (KSHV/HHV-8) is associated with a number of human cancers in particular AIDS associated Kaposi sarcoma (KS) and pleural effusion lymphomas (PELs). KS of the soft palate as well as major involvement of the body and extremities has been known to be a common symptom associated with the onset of AIDS in the HIV immunocompromised population. This has become a pandemic and KS as well as pleural effusion lymphomas are now included as the leading causes of death in the HIV population in developing countries. KSHV was identified 15 years ago and has been tackled mostly on a level of the individual investigator. The focus of this application is to bring together 3 prominent groups of investigators within the University of Pennsylvania community to join their scientific expertise to address the mechanism of KSHV mediated oncogenesis. The overall goal will be to investigate the mechanism of viral control by encoded antigens during the early stages of infection of primary B cells. The fundamental cellular processes targeted during these early stages will provide novel new information as to the strict requirements for successful establishment of latency by the virus. The program consists of three scientific projects, an administrative core, a recombineering virus and vector core and a ChIP sequencing core. The scientific projects are: 1. The Role of the RBPJk-LANA complex during early infection;2. KSHV abortive replication following de novo infection;3. Chromatin regulation of KSHV during early infection of primary B-cells. The success of these projects will allow for the establishment of a more comprehensive mechanistic view of KSHV infection and pathogenesis and provide new clues for the development of strategies to prevent and treat KSHV associated cancers in the HIV population. In addition the accumulation of new information on KSHV biology will be critical for the broader area of herpesvirus biology with insights into the mechanism of oncogenesis associated with other viruses including EBV and so reducing the burden of disease in the HIV infected, transplants and other immunocompromised population

Public Health Relevance

KSHV is a human pathogen associated with a number of human malignancies. The mechanism regulating early infection stages that dictates successful establishment of latency is not well understood. This program will explore this specific stage of de novo infection which is critical for KSHV to establish a long-term latency. This will provide new clues for development of targeted therapies for treatment of associated diseases.

National Institute of Health (NIH)
National Cancer Institute (NCI)
Research Program Projects (P01)
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Special Emphasis Panel (ZCA1-RPRB-2 (J1))
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Read-Connole, Elizabeth Lee
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University of Pennsylvania
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Aneja, Kawalpreet K; Yuan, Yan (2017) Reactivation and Lytic Replication of Kaposi's Sarcoma-Associated Herpesvirus: An Update. Front Microbiol 8:613
Chen, Horng-Shen; De Leo, Alessandra; Wang, Zhuo et al. (2017) BET-Inhibitors Disrupt Rad21-Dependent Conformational Control of KSHV Latency. PLoS Pathog 13:e1006100
Jha, Hem C; Sun, Zhiguo; Upadhyay, Santosh K et al. (2016) KSHV-Mediated Regulation of Par3 and SNAIL Contributes to B-Cell Proliferation. PLoS Pathog 12:e1005801
Madireddy, Advaitha; Purushothaman, Pravinkumar; Loosbroock, Christopher P et al. (2016) G-quadruplex-interacting compounds alter latent DNA replication and episomal persistence of KSHV. Nucleic Acids Res 44:3675-94
Jha, Hem Chandra; Banerjee, Shuvomoy; Robertson, Erle S (2016) The Role of Gammaherpesviruses in Cancer Pathogenesis. Pathogens 5:
Shukla, Sanket Kumar; Jha, Hem Chandra; El-Naccache, Darine W et al. (2016) An EBV recombinant deleted for residues 130-159 in EBNA3C can deregulate p53/Mdm2 and Cyclin D1/CDK6 which results in apoptosis and reduced cell proliferation. Oncotarget 7:18116-34
Lieberman, Paul M (2016) Epigenetics and Genetics of Viral Latency. Cell Host Microbe 19:619-28
Sun, Zhiguo; Jha, Hem Chandra; Pei, Yong-Gang et al. (2016) Major Histocompatibility Complex Class II HLA-DR? Is Downregulated by Kaposi's Sarcoma-Associated Herpesvirus-Encoded Lytic Transactivator RTA and MARCH8. J Virol 90:8047-58
Huang, Hongda; Deng, Zhong; Vladimirova, Olga et al. (2016) Structural basis underlying viral hijacking of a histone chaperone complex. Nat Commun 7:12707
Jha, Hem C; Pei, Yonggang; Robertson, Erle S (2016) Epstein-Barr Virus: Diseases Linked to Infection and Transformation. Front Microbiol 7:1602

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