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Wando Mount Pleasant Library
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Village Library
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Hurd/St. Andrews Library
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Activation of Peripheral T Follicular Helper Cells During Acute Dengue Virus Infection.
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- Author(s): Haltaufderhyde, Kirk; Srikiatkhachorn, Anon; Green, Sharone; Macareo, Louis; Park, Sangshin; Kalayanarooj, Siripen; Rothman, Alan L; Mathew, Anuja
- Source:
Journal of Infectious Diseases. 11/15/2018, Vol. 218 Issue 10, p1675-1685. 11p. - Source:
- Additional Information
- Subject Terms:
- Abstract: Background Follicular helper T cells (TFH) are specialized CD4 T cells required for B-cell help and antibody production. Methods Given the postulated role of immune activation in dengue disease, we measured the expansion and activation of TFH in the circulation (peripheral TFH [pTFH]) collected from Thai children with laboratory-confirmed acute dengue virus (DENV) infection. Results We found significant expansion and activation of pTFH subsets during acute infection with the highest frequencies of activated pTFH (PD1hi pTFH and PD1+CD38+ pTFH) detected during the critical phase of illness. Numbers of activated pTFH were higher in patients with secondary compared with primary infections and in patients with more severe disease. We also found a positive correlation between the frequencies of activated pTFH and the frequencies of plasmablasts. Conclusions To our knowledge, this is the first ex vivo analysis of pTFH activation during acute DENV infection. Overall, our study supports the model that pTFH contribute to disease evolution during the critical stage of illness. [ABSTRACT FROM AUTHOR]
- Abstract: Copyright of Journal of Infectious Diseases is the property of Oxford University Press / USA and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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