Note to users. If you're seeing this message, it means that your browser cannot find this page's style/presentation instructions -- or possibly that you are using a browser that does not support current Web standards. Find out more about why this message is appearing, and what you can do to make your experience of our site the best it can be.
Subscribe

Sci. Signal., 17 July 2012
Vol. 5, Issue 233, p. ra50
[DOI: 10.1126/scisignal.2002581]

RESEARCH ARTICLES

Epidermal Growth Factor Receptor Is Essential for Toll-Like Receptor 3 Signaling

Michifumi Yamashita, Saurabh Chattopadhyay, Volker Fensterl, Paramananda Saikia*, Jaime L. Wetzel, and Ganes C. Sen{dagger}

Department of Molecular Genetics, Lerner Research Institute, Cleveland Clinic, 9500 Euclid Avenue, NE20, Cleveland, OH 44195, USA.

* Present address: School of Life Science, University of Hyderabad, Hyderabad 500046, India.

Abstract: Toll-like receptors (TLRs) recognize specific microbial products and elicit innate immune signals to activate specific transcription factors that induce protective proteins, such as interferon. TLR3 is localized to endosomes and recognizes double-stranded RNA (dsRNA), which is generated by virally infected or apoptotic cells. TLR3 has been genetically linked to several human diseases, including some without viral etiology. Unlike other TLRs, TLR3 requires phosphorylation of two specific tyrosine residues in its cytoplasmic domain to recruit the adaptor protein TRIF (Toll–interleukin-1 receptor domain–containing adaptor protein inducing interferon-β) and initiate the antiviral response. We showed that two protein tyrosine kinases, the epidermal growth factor receptor (EGFR) ErbB1 and Src, bound sequentially to dsRNA-activated TLR3 and phosphorylated the two tyrosine residues. In cells lacking EGFR or treated with an inhibitor of EGFR, viral replication was enhanced and induction of antiviral genes was impaired. Thus, these results reveal a connection between antiviral innate immunity and cell growth regulators.

{dagger} To whom correspondence should be addressed. E-mail: seng{at}ccf.org

Citation: M. Yamashita, S. Chattopadhyay, V. Fensterl, P. Saikia, J. L. Wetzel, G. C. Sen, Epidermal Growth Factor Receptor Is Essential for Toll-Like Receptor 3 Signaling. Sci. Signal. 5, ra50 (2012).

Read the Full Text

THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
The human gene connectome as a map of short cuts for morbid allele discovery.
Y. Itan, S.-Y. Zhang, G. Vogt, A. Abhyankar, M. Herman, P. Nitschke, D. Fried, L. Quintana-Murci, L. Abel, and J.-L. Casanova (2013)
PNAS 110, 5558-5563
   Abstract »    Full Text »    PDF »
2012: Signaling Breakthroughs of the Year.
M. B. Yaffe and N. R. Gough (2013)
Science Signaling 6, eg1
   Abstract »    Full Text »    PDF »
Comment on "Epidermal Growth Factor Receptor Is Essential for Toll-Like Receptor 3 Signaling".
B. Burtness, S. Marur, J. E. Bauman, E. A. Golemis, R. Mehra, and S. J. Cohen (2012)
Science Signaling 5, lc5
   Abstract »    Full Text »    PDF »

To Advertise     Find Products

Science Signaling. ISSN 1937-9145 (online), 1945-0877 (print). Pre-2008: Science's STKE. ISSN 1525-8882