More than 90% of the world population is persistently infected with several herpesviruses. Kaposi's sarcoma-associated herpesvirus (KSHV) can establish persistent infection in the oral cavity and can be transmitted orally. KSHV infection manifests in AIDS patients and leads to several lymphoproliferative diseases as well as Kaposi's sarcoma. Although the host cells and the immune system have evolved mechanisms to control herpesviral infections, herpesviruses have also developed strategies to evade and/or antagonize them. Herpesviruses employ multiple viral genes to achieve precise gene expression control and to counteract the host immune system, both of which are essential to establish, maintain, and reactivate from latency. The successful transition between latency and lytic replication is critical for viral persistence in the host. It has not been clearly understood about how the virus regulates its own expression and deregulates cellular transcription to efficiently replicate and evade immune responses. To understand the mechanisms of KSHV persistence, concentrated on at the level of gene expression regulation and immune evasion, four laboratories in California join forces. The following four projects will be primarily addressed: 1) the mechanism of inhibition on type inhibiting interferon production by KSHV ORF36 (project leader: Ren Sun, UCLA);2) the transcriptional regulatory role of ORF36 as the sole viral kinase of KSHV (project leader: Hsing-Jien Kung, UC Davis);3) the mechanism underlying two KSHV-encoded modulators (ORF10 and ORF45) of innate immune pathways (Project leader, Don Ganem, UCSF);4) development of develop a non-human primate model for the KSHV persistent infection of KSHV to determine the immune evasive role of ORF10, ORF36, K-bZIPPRF45 and K5K3 during viral infection in vivo (Project leader: Jae Jung, Harvard/USC).

Public Health Relevance

Public Relevance There are extensive interactions among projects, which generate synergy towards one common theme: the virus-host interactions underlying the persistent infection of KSHV. These collaborative activities are facilitated by a Coordination Administration Core. Accomplishing these goals will provide new insight and opportunities to develop novel therapeutic approaches against persistent herpesviral infection and associated diseases. Further, the collaboration stimulated by this program project will not only promote researches outlined in this proposal, but also facilitate joint researches in other aspects of KSHV biology and cultivation of new generation of scientists for multidisciplinary research in the herpesvirology field.

National Institute of Health (NIH)
National Institute of Dental & Craniofacial Research (NIDCR)
Research Program Projects (P01)
Project #
Application #
Study Section
Special Emphasis Panel (ZDE1-PZ (13))
Program Officer
Rodriguez-Chavez, Isaac R
Project Start
Project End
Budget Start
Budget End
Support Year
Fiscal Year
Total Cost
Indirect Cost
University of California Los Angeles
Schools of Medicine
Los Angeles
United States
Zip Code
Seo, Gil Ju; Yang, Aerin; Tan, Brandon et al. (2015) Akt Kinase-Mediated Checkpoint of cGAS DNA Sensing Pathway. Cell Rep 13:440-9
Rodgers, Mary A; Bowman, James W; Liang, Qiming et al. (2014) Regulation where autophagy intersects the inflammasome. Antioxid Redox Signal 20:495-506
Campbell, Mel; Kim, Kevin Y; Chang, Pei-Ching et al. (2014) A lytic viral long noncoding RNA modulates the function of a latent protein. J Virol 88:1843-8
Feng, Jun; De Jesus, Paul D; Su, Victoria et al. (2014) RIOK3 is an adaptor protein required for IRF3-mediated antiviral type I interferon production. J Virol 88:7987-97
Buskiewicz, Iwona A; Koenig, Andreas; Roberts, Brian et al. (2014) c-FLIP-Short reduces type I interferon production and increases viremia with coxsackievirus B3. PLoS One 9:e96156
Kim, Kevin Y; Huerta, Steve B; Izumiya, Chie et al. (2013) Kaposi's sarcoma-associated herpesvirus (KSHV) latency-associated nuclear antigen regulates the KSHV epigenome by association with the histone demethylase KDM3A. J Virol 87:6782-93
Toth, Zsolt; Brulois, Kevin; Jung, Jae U (2013) The chromatin landscape of Kaposi's sarcoma-associated herpesvirus. Viruses 5:1346-73
Kronstad, Lisa M; Brulois, Kevin F; Jung, Jae U et al. (2013) Dual short upstream open reading frames control translation of a herpesviral polycistronic mRNA. PLoS Pathog 9:e1003156
Knipe, David M; Lieberman, Paul M; Jung, Jae U et al. (2013) Snapshots: chromatin control of viral infection. Virology 435:141-56
Amini-Bavil-Olyaee, Samad; Choi, Youn Jung; Lee, Jun Han et al. (2013) The antiviral effector IFITM3 disrupts intracellular cholesterol homeostasis to block viral entry. Cell Host Microbe 13:452-64

Showing the most recent 10 out of 46 publications