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Adaptive Immune Response of Vγ2Vδ2+ T Cells During Mycobacterial Infections
Journal article   Peer reviewed

Adaptive Immune Response of Vγ2Vδ2+ T Cells During Mycobacterial Infections

Craig T Morita, Yun Shen, Dejiang Zhou, Liyou Qiu, Xioamin Lai, Meredith Simon, Ling Shen, Zhongchen Kou, Qifan Wang, Liming Jiang, …
Science (American Association for the Advancement of Science), Vol.295(5563), pp.2255-2258
03/22/2002
DOI: 10.1126/science.1068819
PMCID: PMC2872146
PMID: 11910108
url
http://doi.org/10.1126/science.1068819View
Open Access

Abstract

To examine the role of T cell receptor (TCR) in γδ T cells in adaptive immunity, a macaque model was used to follow Vγ2Vδ2 + T cell responses to mycobacterial infections. These phosphoantigen-specific γδ T cells displayed major expansion during Mycobacterium bovis Bacille Calmette-Guérin (BCG) infection and a clear memory-type response after BCG reinfection. Primary and recall expansions of Vγ2Vδ2 + T cells were also seen during Mycobacterium tuberculosis infection of naïve and BCG-vaccinated macaques, respectively. This capacity to rapidly expand coincided with a clearance of BCG bacteremia and immunity to fatal tuberculosis in BCG-vaccinated macaques. Thus, Vγ2Vδ2 + T cells may contribute to adaptive immunity to mycobacterial infections.

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