Xiang-Jin Meng
   Basic researcher
   University
   Thought Leader
   Super Expert
Fields of Expertise:
-
POSITIONS
  • 1999 - present
University Distinguished Professor

Virginia Polytechnic Institute and State University, Blacksburg, Virginia, USA





BIOGRAPHY

The Meng lab has made many important seminal contributions to the study of hepatitis E virus (HEV), including discovery of the first animal hepatitis E virus, swine HEV from pigs, which led to the eventual recognition of hepatitis E as a zoonotic disease, discovery of avian HEV from chickens with he... Read more
The Meng lab has made many important seminal contributions to the study of hepatitis E virus (HEV), including discovery of the first animal hepatitis E virus, swine HEV from pigs, which led to the eventual recognition of hepatitis E as a zoonotic disease, discovery of avian HEV from chickens with hepatitis-splenomegaly syndrome in the United States, first demonstration of experimental cross-species HEV infection, establishment of a pig model and a chicken model for HEV, development of genotypes 1, 3 and 4 HEV and avian HEV infectious clones and replicons, and development of a unique chronic hepatitis E model in pigs. The Meng lab has conducted extensive structural and functional studies of HEV genes, cross-species infection, HEV immunology and vaccine studies, mechanism of HEV-associated extrahepatic disease manifestations, and HEV pathogenesis studies using HEV reverse genetic systems and animal models. The Meng lab currently focuses on understanding the underlying mechanisms of HEV pathogenesis, particularly cross-species HEV transmission and extrahepatic manifestations of HEV-associated diseases such as HEV-associated high mortality during pregnancy, chronic infection, and neurological diseases.

SCIENTIFIC TRAININGS & EDUCATION
  • 1980-07-01 - 1985-05-31

    M.D.
    Binzhou Medical University, BinZhou, China
  • 1985-08-01 - 1988-06-30

    M.S.
    Hubei Medical University, Wuhan, China
  • 1991-05-01 - 1999-06-30

    Ph.D.
    Iowa State University, Ames, Iowa, USA

POSITIONS
  • 1999 - present
University Distinguished Professor

Virginia Polytechnic Institute and State University, Blacksburg, Virginia, USA

KEY PUBLICATIONS | ALL PUBLICATIONS

A novel virus in swine is closely related to the human hepatitis E virus

Meng, X.J., R.H. Purcell, P.G. Halbur, J.R. Lehman, D.M. Webb, T.S. Tsareva, J.S. Haynes, B.J. Thacker, and S.U. Emerson

Publication: Proceedings of the National Academy of Sciences USA. 1997; 94:9860-9865.

Discovery of first animal HEV


Genetic and experimental evidence for cross-species infection by the swine hepatitis E virus

Meng, X.J., P.G. Halbur, M. Shapiro, S. Govindarajan, J.D. Bruna, I. K. Mushahwar, R.H. Purcell, and S.U. Emerson

Publication: Journal of Virology. 1998;72:9714-9721.

First demonstration of cross-species HEV infection


Recombinant hepatitis E virus genomes infectious for primates: importance of capping and discovery of a cis-reactive element

Emerson SU, Zhang M, Meng X.J., St. Clair M, Nguyen H, Huang Y, and Purcell RH

Publication: Proceedings of the National Academy of Sciences USA. 2001;98:15270-15275.

Development of infectious clone for HEV


Initiation at the third in-frame AUG codon of open reading frame 3 of the hepatitis E virus is essential for viral infectivity in vivo.

Huang YW, Oprissnig T, Halbur PG, and Meng XJ.

Publication: Journal of Virology. 2007;81:3018-3026.

Identification of authentic ORF3 start


Deletions of the hypervariable region (HVR) in open reading frame 1 of hepatitis E virus do not abolish virus infectivity: evidence for attenuation of HVR deletion mutants in vivo.

Pudupakam RS, Y.W. Huang, P. Billam, S. Ramamoorthy, F.W. Pierson, and X.J. Meng.

Publication: Journal of Virology. 2009;83(1):384-95.

Discover that the hypervariable region of HEV is dispensable for HEV infection


Pig model mimicking chronic hepatitis E virus infection in immunocompromised patients to assess immune correlates during chronicity

Cao D, Cao QM, Subramaniam S, Yugo DM, Heffron CL, Rogers AJ, Kenney SP, Tian D, Matzinger SR, Overend C, Catanzaro N, LeRoith T, Wang H, PiƱeyro P, Lindstrom N, Clark-Deener S, Yuan L, and X.J. Meng.

Publication: Proceedings of the National Academy of Sciences USA. 2017;114(27):6914-6923.

Development of a chronic HEV infection model


Progesterone-Mediated Enhancement of Hepatitis E Virus Replication in Human Liver Cells.

Sooryanarain H, Ahmed SA, X.J. Meng

Publication: mBio. 2021:e0143421. doi: 10.1128/mBio.01434-21.

Elucidate the role of Progesterone in HEV infection


The U-rich untranslated regions (UTR) of the hepatitis E virus induces differential type I and type III interferon responses in a host cell-dependent manner

Sooryanarain H, C.L. Heffron, and X.J. Meng.

Publication: mBio. 2020;11(1):e03103-19. doi: 10.1128/mBio.03103-19.

Identification of HEV RNA PAMPs that induce differential Type I and Type III Interferon responses in HEV infected cells


ACHIEVEMENTS
Member, National Academy of Sciences, USA 2016

Fellow, National Academy of Inventors, USA 2014

Fellow, American Academy of Microbiology 2012

Fellow, American Association for the Advancement of Sciences 2021