Abstract
Activin A is a member of the transforming growth factor-β superfamily, which we have identified as having a role in inflammatory responses. We show that circulating levels of activin increase rapidly after LPS-induced challenge through activation of Toll-like receptor 4 and the key adaptor protein, MyD88. Treatment with the activin-binding protein, follistatin, alters the profiles of TNF, IL-1β, and IL-6 after LPS stimulation, indicating that activin modulates the release of several key proinflammatory cytokines. Further, mice administered one 10-μg dose of follistatin to block activin effects have increased survival after a lethal dose of LPS, and the circulating levels of activin correlate with survival outcome. These findings demonstrate activin A's crucial role in the inflammatory response and show that blocking its actions by the use of follistatin has significant therapeutic potential to reduce the severity of inflammatory diseases.
Bibliography
Jones, K. L., Mansell, A., Patella, S., Scott, B. J., Hedger, M. P., de Kretser, D. M., & Phillips, D. J. (2007). Activin A is a critical component of the inflammatory response, and its binding protein, follistatin, reduces mortality in endotoxemia. Proceedings of the National Academy of Sciences, 104(41), 16239â16244.
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Dates
Type | When |
---|---|
Created | 17 years, 10 months ago (Oct. 2, 2007, 8:25 p.m.) |
Deposited | 3 years, 4 months ago (April 12, 2022, 4:34 p.m.) |
Indexed | 2 months ago (June 26, 2025, 11:44 a.m.) |
Issued | 17 years, 10 months ago (Oct. 9, 2007) |
Published | 17 years, 10 months ago (Oct. 9, 2007) |
Published Online | 17 years, 10 months ago (Oct. 9, 2007) |
Published Print | 17 years, 10 months ago (Oct. 9, 2007) |
@article{Jones_2007, title={Activin A is a critical component of the inflammatory response, and its binding protein, follistatin, reduces mortality in endotoxemia}, volume={104}, ISSN={1091-6490}, url={http://dx.doi.org/10.1073/pnas.0705971104}, DOI={10.1073/pnas.0705971104}, number={41}, journal={Proceedings of the National Academy of Sciences}, publisher={Proceedings of the National Academy of Sciences}, author={Jones, Kristian L. and Mansell, Ashley and Patella, Shane and Scott, Bernadette J. and Hedger, Mark P. and de Kretser, David M. and Phillips, David J.}, year={2007}, month=oct, pages={16239–16244} }