Nonprogressing HIV-infected children share fundamental immunological features of nonpathogenic SIV infection.
Nonprogressing HIV-infected children share fundamental immunological features of nonpathogenic SIV infection.
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DOI:
10.1126/scitranslmed.aag1048
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发表时间:
2016-09-28
影响因子:
17.1
通讯作者:
Goulder P
中科院分区:
文献类型:
--
作者:
Muenchhoff M;Adland E;Karimanzira O;Crowther C;Pace M;Csala A;Leitman E;Moonsamy A;McGregor C;Hurst J;Groll A;Mori M;Sinmyee S;Thobakgale C;Tudor-Williams G;Prendergast AJ;Kloverpris H;Roider J;Leslie A;Shingadia D;Brits T;Daniels S;Frater J;Willberg CB;Walker BD;Ndung'u T;Jooste P;Moore PL;Morris L;Goulder P
Disease-free infection in HIV-infected adults is associated with HLA-mediated suppression of viremia, whereas in the sooty mangabey and other healthy natural hosts of SIV, viral replication continues unabated. To better understand factors preventing HIV disease, we here investigated pediatric infection, where AIDS typically develops more rapidly than in adults. Among 170 non-progressing anti-retroviral therapy-naïve children aged >5yrs maintaining normal-for-age CD4 T-cell counts, immune activation levels were low despite high viremia (median 26,000 copies/ml). Potent, broadly neutralizing antibody responses in the majority of subjects and strong virus-specific T-cell activity were present but did not drive pediatric non-progression. However, reduced CCR5 expression and low HIV infection in long-lived central memory CD4 T-cells were observed in pediatric non-progressors. These children therefore express two cardinal immunological features of non-pathogenic SIV infection in sooty mangabeys - low immune activation despite high viremia and low CCR5 expression on long-lived central memory CD4 T-cells – suggesting closer similarities with non-pathogenetic mechanisms evolved over thousands of years in natural SIV hosts than those operating in HIV-infected adults.
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影响因子:
82.9
作者:
通讯作者:
--
影响因子:
82.9
作者:
通讯作者:
--
影响因子:
82.9
作者:
Hessell AJ;Jaworski JP;Epson E;Matsuda K;Pandey S;Kahl C;Reed J;Sutton WF;Hammond KB;Cheever TA;Barnette PT;Legasse AW;Planer S;Stanton JJ;Pegu A;Chen X;Wang K;Siess D;Burke D;Park BS;Axthelm MK;Lewis A;Hirsch VM;Graham BS;Mascola JR;Sacha JB;Haigwood NL
通讯作者:
Haigwood NL
影响因子:
6.4
作者:
Hunt, Peter W.;Brenchley, Jason;Deeks, Steven G.
通讯作者:
Deeks, Steven G.
影响因子:
20.3
作者:
Deeks, SG;Kitchen, CMR;Hecht, FM
通讯作者:
Hecht, FM