Infants Infected with Respiratory Syncytial Virus Generate Potent Neutralizing Antibodies that Lack Somatic Hypermutation.
Infants Infected with Respiratory Syncytial Virus Generate Potent Neutralizing Antibodies that Lack Somatic Hypermutation.
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DOI:
10.1016/j.immuni.2018.01.005
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发表时间:
2018-02-20
期刊:
影响因子:
32.4
通讯作者:
Walker LM
中科院分区:
文献类型:
--
作者:
Goodwin E;Gilman MSA;Wrapp D;Chen M;Ngwuta JO;Moin SM;Bai P;Sivasubramanian A;Connor RI;Wright PF;Graham BS;McLellan JS;Walker LM
Respiratory syncytial virus (RSV) is a leading cause of infant mortality, and there are currently no licensed vaccines to protect this vulnerable population. A comprehensive understanding of infant antibody responses to natural RSV infection would facilitate vaccine development. Here, we isolated over 450 RSV fusion glycoprotein (F)-specific antibodies from seven RSV-infected infants and found that half of the antibodies recognized only two antigenic sites. Antibodies targeting both sites showed convergent sequence features, and structural studies revealed the molecular basis for their recognition of RSV F. A subset of antibodies targeting one of these sites displayed potent neutralizing activity despite lacking somatic mutations, and similar antibodies were detected in RSV-naïve B cell repertoires, suggesting that expansion of these B cells in infants may be possible with suitably designed vaccine antigens. Collectively, our results provide fundamental insights into infant antibody responses and a framework for the rational design of age-specific RSV vaccines.
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影响因子:
14.8
作者:
Gietz, R. Daniel;Schiestl, Robert H.
通讯作者:
Schiestl, Robert H.
影响因子:
5.9
作者:
Graham BS
通讯作者:
Graham BS
DOI:
10.1107/s0907444904019158
发表时间:
2004-12-01
影响因子:
2.2
作者:
Emsley, P;Cowtan, K
通讯作者:
Cowtan, K
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通讯作者:
Crowe, James E., Jr.
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6.4
作者:
HALL, CB;WALSH, EE;SCHNABEL, KC
通讯作者:
SCHNABEL, KC