Abstract
The ribonucleic acid (RNA) helicases retinoic acid-inducible gene-I (RIG-I) and melanoma differentiation–associated gene 5 (MDA5) recognize distinct viral and synthetic RNAs, leading to the production of interferons. Although 5′-triphosphate single-stranded RNA is a RIG-I ligand, the role of RIG-I and MDA5 in double-stranded (ds) RNA recognition remains to be characterized. In this study, we show that the length of dsRNA is important for differential recognition by RIG-I and MDA5. The MDA5 ligand, polyinosinic-polycytidylic acid, was converted to a RIG-I ligand after shortening of the dsRNA length. In addition, viral dsRNAs differentially activated RIG-I and MDA5, depending on their length. Vesicular stomatitis virus infection generated dsRNA, which is responsible for RIG-I–mediated recognition. Collectively, RIG-I detects dsRNAs without a 5′-triphosphate end, and RIG-I and MDA5 selectively recognize short and long dsRNAs, respectively.
Bibliography
Kato, H., Takeuchi, O., Mikamo-Satoh, E., Hirai, R., Kawai, T., Matsushita, K., Hiiragi, A., Dermody, T. S., Fujita, T., & Akira, S. (2008). Length-dependent recognition of double-stranded ribonucleic acids by retinoic acidâinducible gene-I and melanoma differentiationâassociated gene 5. The Journal of Experimental Medicine, 205(7), 1601â1610.
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Dates
Type | When |
---|---|
Created | 17 years, 1 month ago (July 1, 2008, 7:56 p.m.) |
Deposited | 2 years ago (July 29, 2023, 11:54 a.m.) |
Indexed | 1 day, 10 hours ago (Aug. 26, 2025, 3:14 a.m.) |
Issued | 17 years, 1 month ago (June 30, 2008) |
Published | 17 years, 1 month ago (June 30, 2008) |
Published Online | 17 years, 1 month ago (June 30, 2008) |
Published Print | 17 years, 1 month ago (July 7, 2008) |
@article{Kato_2008, title={Length-dependent recognition of double-stranded ribonucleic acids by retinoic acid–inducible gene-I and melanoma differentiation–associated gene 5}, volume={205}, ISSN={0022-1007}, url={http://dx.doi.org/10.1084/jem.20080091}, DOI={10.1084/jem.20080091}, number={7}, journal={The Journal of Experimental Medicine}, publisher={Rockefeller University Press}, author={Kato, Hiroki and Takeuchi, Osamu and Mikamo-Satoh, Eriko and Hirai, Reiko and Kawai, Tomoji and Matsushita, Kazufumi and Hiiragi, Akane and Dermody, Terence S. and Fujita, Takashi and Akira, Shizuo}, year={2008}, month=jun, pages={1601–1610} }