The membrane-bound transcription factor CREB3L1 is activated in response to virus infection to inhibit proliferation of virus-infected cells

Cell Host Microbe. 2011 Jul 21;10(1):65-74. doi: 10.1016/j.chom.2011.06.006.


CREB3L1/OASIS is a cellular transcription factor synthesized as a membrane-bound precursor and activated by regulated intramembrane proteolysis in response to stimuli like ER stress. Comparing gene expression between Huh7 subclones that are permissive for hepatitis C virus (HCV) replication versus the nonpermissive parental Huh7 cells, we identified CREB3L1 as a host factor that inhibits proliferation of virus-infected cells. Upon infection with diverse DNA and RNA viruses, including murine γ-herpesvirus 68, HCV, West Nile virus (WNV), and Sendai virus, CREB3L1 was proteolytically cleaved, allowing its NH(2) terminus to enter the nucleus and induce multiple genes encoding inhibitors of the cell cycle to block cell proliferation. Consistent with this, we observed a necessity for CREB3L1 expression to be silenced in proliferating cells that harbor replicons of HCV or WNV. Our results indicate that CREB3L1 may play an important role in limiting virus spread by inhibiting proliferation of virus-infected cells.

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Cell Line
  • Cell Nucleus / metabolism
  • Cell Proliferation
  • Cyclic AMP Response Element-Binding Protein / genetics
  • Cyclic AMP Response Element-Binding Protein / metabolism*
  • Hepacivirus / pathogenicity*
  • Hepacivirus / physiology
  • Hepatocytes / virology
  • Host-Pathogen Interactions*
  • Humans
  • Nerve Tissue Proteins / genetics
  • Nerve Tissue Proteins / metabolism*
  • Replicon
  • Rhadinovirus / pathogenicity
  • Sendai virus / pathogenicity
  • Virus Replication
  • West Nile virus / pathogenicity


  • CREB3L1 protein, human
  • Cyclic AMP Response Element-Binding Protein
  • Nerve Tissue Proteins

Associated data

  • GEO/GSE25156
  • GEO/GSE25157