共 28 条
The human IL-15 superagonist ALT-803 directs SIV-specific CD8+ T cells into B-cell follicles
被引:58
|作者:
Webb, Gabriela M.
[1
,2
]
Li, Shengbin
[3
]
Mwakalundwa, Gwantwa
[3
]
Folkvord, Joy M.
[4
]
Greene, Justin M.
[1
,2
]
Reed, Jason S.
[1
,2
]
Stanton, Jeffery J.
[2
]
Legasse, Alfred W.
[2
]
Hobbs, Theodore
[2
]
Martin, Lauren D.
[2
]
Park, Byung S.
[2
]
Whitney, James B.
[5
,6
]
Jeng, Emily K.
[7
]
Wong, Hing C.
[7
]
Nixon, Douglas F.
[8
]
Jones, R. Brad
[8
]
Connick, Elizabeth
[4
]
Skinner, Pamela J.
[3
]
Sacha, Jonah B.
[1
,2
]
机构:
[1] Oregon Hlth & Sci Univ, Vaccine & Gene Therapy Inst, Portland, OR 97201 USA
[2] Oregon Hlth & Sci Univ, Oregon Natl Primate Res Ctr, Portland, OR 97201 USA
[3] Univ Minnesota, Dept Vet Biomed Sci, St Paul, MN 55108 USA
[4] Univ Arizona, Div Infect Dis, Tucson, AZ USA
[5] Harvard Med Sch, Beth Israel Deaconess Med Ctr, Ctr Virol & Vaccine Res, Boston, MA USA
[6] MIT & Harvard, Ragon Inst MGH, Cambridge, MA USA
[7] Altor BioSci Corp, Miramar, FL USA
[8] George Washington Univ, Dept Microbiol Immunol & Trop Med, Washington, DC USA
基金:
美国国家卫生研究院;
关键词:
NONHUMAN-PRIMATES;
VIRAL-INFECTION;
FUSION COMPLEX;
REPLICATION;
THERAPY;
TISSUES;
HIV;
CTL;
NK;
D O I:
10.1182/bloodadvances.2017012971
中图分类号:
R5 [内科学];
学科分类号:
1002 ;
100201 ;
摘要:
Sequestering of latent HIV in follicular helper T cells within B-cell follicles that largely exclude cytotoxic T cells is a major barrier to cellular immune-based approaches to eradicate HIV. Here, we show that the clinical-grade human interleukin-15 (IL-15) superagonist ALT-803 activates and redirects simian immunodeficiency virus (SIV) specific CD8(+) T cells from the peripheral blood into B-cell follicles. In agreement with the increased trafficking of SIVspecific cytotoxic T cells to sites of cryptic viral replication, lymph nodes of elite controlling macaques contained fewer cells expressing SIV RNA or harboring SIV DNA post ALT-803 treatment. These data establish ALT-803 as an immunotherapeutic for HIV and other chronic viral pathogens that evade host immunity by persisting in B-cell follicles.
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页码:76 / 84
页数:9
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