Abstract:
:Human immunodeficiency virus type 1 (HIV-1) clade C causes >50% of all HIV infections worldwide, and an estimated 90% of all transmissions occur mucosally with R5 strains. A pathogenic R5 simian-human immunodeficiency virus (SHIV) encoding HIV clade C env is highly desirable to evaluate candidate AIDS vaccines in nonhuman primates. To this end, we generated SHIV-1157i, a molecular clone from a Zambian infant isolate that carries HIV clade C env. SHIV-1157i was adapted by serial passage in five monkeys, three of which developed peripheral CD4(+) T-cell depletion. After the first inoculated monkey developed AIDS at week 137 postinoculation, transfer of its infected blood to a naïve animal induced memory T-cell depletion and thrombocytopenia within 3 months in the recipient. In parallel, genomic DNA from the blood donor was amplified to generate the late proviral clone SHIV-1157ipd3. To increase the replicative capacity of SHIV-1157ipd3, an extra NF-kappaB binding site was engineered into its 3' long terminal repeat, giving rise to SHIV-1157ipd3N4. This virus was exclusively R5 tropic and replicated more potently in rhesus peripheral blood mononuclear cells than SHIV-1157ipd3 in the presence of tumor necrosis factor alpha. Rhesus macaques of Indian and Chinese origin were next inoculated intrarectally with SHIV-1157ipd3N4; this virus replicated vigorously in both sets of monkeys. We conclude that SHIV-1157ipd3N4 is a highly replication-competent, mucosally transmissible R5 SHIV that represents a valuable tool to test candidate AIDS vaccines targeting HIV-1 clade C Env.
journal_name
J Viroljournal_title
Journal of virologyauthors
Song RJ,Chenine AL,Rasmussen RA,Ruprecht CR,Mirshahidi S,Grisson RD,Xu W,Whitney JB,Goins LM,Ong H,Li PL,Shai-Kobiler E,Wang T,McCann CM,Zhang H,Wood C,Kankasa C,Secor WE,McClure HM,Strobert E,Else JG,Ruprecht Rdoi
10.1128/JVI.00558-06subject
Has Abstractpub_date
2006-09-01 00:00:00pages
8729-38issue
17eissn
0022-538Xissn
1098-5514pii
80/17/8729journal_volume
80pub_type
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journal_title:Journal of virology
pub_type: 杂志文章
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pub_type: 杂志文章
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pub_type: 杂志文章
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doi:10.1128/JVI.66.5.3140-3150.1992
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pub_type: 杂志文章
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pub_type: 杂志文章
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pub_type: 杂志文章
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pub_type: 杂志文章
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journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.17.3.841-853.1976
更新日期:1976-03-01 00:00:00
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pub_type: 杂志文章
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journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.64.8.3661-3673.1990
更新日期:1990-08-01 00:00:00
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journal_title:Journal of virology
pub_type: 杂志文章
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更新日期:2005-02-01 00:00:00
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journal_title:Journal of virology
pub_type: 杂志文章
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journal_title:Journal of virology
pub_type: 杂志文章
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更新日期:2015-10-01 00:00:00
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journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.54.2.576-585.1985
更新日期:1985-05-01 00:00:00