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Comparison of HIV-1 nef and gag variations and host HLA characteristics as determinants of disease progression among HIV-1 vertically infected Kenyan children
http://hdl.handle.net/2297/43945
http://hdl.handle.net/2297/4394582565e68-d016-471f-bb03-6e03aba93e50
名前 / ファイル | ライセンス | アクション |
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ME-PR-ICHIMURA-H-0137140.pdf (418.3 kB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2017-10-03 | |||||
タイトル | ||||||
タイトル | Comparison of HIV-1 nef and gag variations and host HLA characteristics as determinants of disease progression among HIV-1 vertically infected Kenyan children | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
著者 |
Saina, Matilda
× Saina, Matilda× Bi, Xiuqiong× Lihana, Raphael× Lwembe, Raphael× Ishizaki, Azumi× Panikulam, Annie× Palakudy, Tresa× Musoke, Rachel× Owens, Mary× Songok, Elijah Maritim× Ichimura, Hiroshi |
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書誌情報 |
PLoS ONE 巻 10, 号 8, p. e0137140, 発行日 2015-08-28 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 1932-6203 | |||||
DOI | ||||||
関連タイプ | isVersionOf | |||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1371/journal.pone.0137140 | |||||
出版者 | ||||||
出版者 | Public Library of Science | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Objectives: Disease progression varies among HIV-1-infected individuals. The present study aimed to explore possible viral and host factors affecting disease progression in HIV-1-infected children. Methods: Since 2000, 102 HIV-1 vertically-infected children have been followed-up in Kenya. Here we studied 29 children (15 male/14 female) who started antiretroviral treatment at <5 years of age (rapid progressors; RP), and 32 (17 male/15 female) who started at >10 years of age (slow progressors; SP). Sequence variations in the HIV-1 gag and nef genes and the HLA class I-related epitopes were compared between the two groups. Results: Based on nef sequences, HIV-1 subtypes A1/D were detected in 62.5%/12.5% of RP and 66.7%/20%of SP, with no significant difference in subtype distribution between groups (p = 0.8). In the ten Nef functional domains, only the PxxP3 region showed significantly greater variation in RP (33.3%) than SP (7.7%, p = 0.048). Gag sequences did not significantly differ between groups. The reportedly protective HLA-A alleles, A∗74:01, A∗32:01 and A∗26, were more commonly observed in SP (50.0%) than RP (11.1%, p = 0.010), whereas the reportedly disease-susceptible HLA-B∗45:01 was more common in RP (33.3%) than SP (7.4%, p = 0.045). Compared to RP, SP showed a significantly higher median number of predicted HLA-B-related 12-mer epitopes in Nef (3 vs. 2, p = 0.037), HLA-B-related 11-mer epitopes in Gag (2 vs. 1, p = 0.029), and HLA-A-related 9-mer epitopes in Gag (4 vs. 1, p = 0.051). SP also had fewer HLA-C-related epitopes in Nef (median 4 vs. 5, p = 0.046) and HLA-C-related 11-mer epitopes in Gag (median 1 vs. 1.5, p = 0.044) than RP. Conclusions: Compared to rapid progressors, slow progressors had more protective HLA-A alleles and more HLA-B-related epitopes in both the Nef and Gag proteins. These results suggest that the host factor HLA plays a stronger role in disease progression than the Nef and Gag sequence variations in HIV-1-infected Kenyan children. © 2015 Saina et al. | |||||
著者版フラグ | ||||||
出版タイプ | AM | |||||
出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa |