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Identification and characterization of HIV-specific resident memory CD8 + T cells in human lymphoid tissue

Buggert, Marcus, Nguyen, Son, Salgado-Montes de Oca, Gonzalo, Bengsch, Bertram, Darko, Samuel, Ransier, Amy, Roberts, Emily R., del Alcazar, Daniel, Brody, Irene Bukh, Vella, Laura A., Beura, Lalit, Wijeyesinghe, Sathi, Herati, Ramin S., Del Rio Estrada, Perla M., Ablanedo-Terrazas, Yuria, Kuri-Cervantes, Leticia, Sada Japp, Alberto, Manne, Sasikanth, Vartanian, Shant, Huffman, Austin, Sandberg, Johan K., Gostick, Emma, Nadolski, Gregory, Silvestri, Guido, Canaday, David H., Price, David A., Petrovas, Constantinos, Su, Laura F., Vahedi, Golnaz, Dori, Yoav, Frank, Ian, Itkin, Maxim G., Wherry, E. John, Deeks, Steven G., Naji, Ali, Reyes-Terán, Gustavo, Masopust, David, Douek, Daniel C. and Betts, Michael R. 2018. Identification and characterization of HIV-specific resident memory CD8 + T cells in human lymphoid tissue. Science Immunology 3 (24) , eaar4526. 10.1126/sciimmunol.aar4526

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Current paradigms of CD8+ T cell–mediated protection in HIV infection center almost exclusively on studies of peripheral blood, which is thought to provide a window into immune activity at the predominant sites of viral replication in lymphoid tissues (LTs). Through extensive comparison of blood, thoracic duct lymph (TDL), and LTs in different species, we show that many LT memory CD8+ T cells bear phenotypic, transcriptional, and epigenetic signatures of resident memory T cells (TRMs). Unlike their circulating counterparts in blood or TDL, most of the total and follicular HIV-specific CD8+ T cells in LTs also resemble TRMs. Moreover, high frequencies of HIV-specific CD8+ TRMs with skewed clonotypic profiles relative to matched blood samples are present in LTs of individuals who spontaneously control HIV replication in the absence of antiretroviral therapy (elite controllers). Single-cell RNA sequencing analysis confirmed that HIV-specific TRMs are enriched for effector-related immune genes and signatures compared with HIV-specific non-TRMs in elite controllers. Together, these data indicate that previous studies in blood have largely failed to capture the major component of HIV-specific CD8+ T cell responses resident within LTs.

Item Type: Article
Date Type: Published Online
Status: Published
Schools: Medicine
Publisher: American Association for the Advancement of Science
ISSN: 2470-9468
Date of First Compliant Deposit: 1 March 2019
Date of Acceptance: 26 March 2018
Last Modified: 04 Mar 2019 11:15

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