UMMS Affiliation

Department of Medicine, Division of Infectious Diseases and Immunology; Center for Infectious Disease and Vaccine Research

Publication Date

2011-12

Document Type

Article

Disciplines

Life Sciences | Medicine and Health Sciences | Women's Studies

Abstract

Dengue virus (DENV) is a leading cause of morbidity and mortality in most tropical and subtropical areas of the world. Dengue virus infection induces specific CD4+CD8- and CD8+CD4- T cells in humans. In primary infection, T-cell responses to DENV are serotype cross-reactive, but the highest response is to the serotype that caused the infection. The epitopes recognized by DENV-specific T cells are located in most of the structural and non-structural proteins, but NS3 is the protein that is most dominantly recognized. In patients with dengue hemorrhagic fever (DHF) caused by secondary DENV infection, T cells are highly activated in vivo. These highly activated T cells are DENV-specific and oligoclonal. Multiple kinds of lymphokines are produced by the activated T cells, and it has been hypothesized that these lymphokines are responsible for induction of plasma leakage, one of the most characteristic features of DHF. Thus, T-cells play important roles in the pathogenesis of DHF and in the recovery from DENV infection.

DOI of Published Version

10.2149/tmh.2011-S09

Source

Trop Med Health. 2011 Dec;39(4 Suppl):45-51. Epub 2011 Dec 1. Link to article on publisher's site

Journal/Book/Conference Title

Tropical medicine and health

Related Resources

Link to Article in PubMed

PubMed ID

22500136

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