Abstract：
:Type I interferons, particularly interferon-alpha (IFN-α), play a vital role in the host's anti-viral defenses by interfering with viral replication. However, the virus rapidly evolves to exploit the IFN-α response for its replication, spread, and pathogenic function. In this study, we attempted to determine IFN-α susceptibility and productivity of infectious transmitted/founder (TF) (n = 8) and non-transmitted (NT) viruses (n = 8) derived from HIV-1 infected infants. Independent experiments were carried out to determine IFN-α resistance, replication fitness, and viral productivity in CD4+ T cells over a short period. In vitro studies showed that TF viruses were resistant to IFN-α during the very near moment of transmission, but in the subsequent time points, they became susceptible to IFN-α. We did not observe much difference in replicative fitness of the TF viruses in cultures treated with and without IFN-α, but the difference was significant in the case of NT viruses obtained from the same individual. Despite increased susceptibility to IFN-α, NT viruses produced more viral particles than TF viruses. Similar results were also obtained in cultures treated with maraviroc (MVC). The study identified unique characteristics of TF viruses thus prompting further investigation into virus-host interaction occurring during the early stages of HIV infection.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Ashokkumar M,Sonawane A,Sperk M,Tripathy SP,Neogi U,Hanna LEdoi
10.1038/s41598-020-59596-xsubject
Has Abstractpub_date
2020-02-17 00:00:00pages
2747issue
1issn
2045-2322pii
10.1038/s41598-020-59596-xjournal_volume
10pub_type
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pub_type： 杂志文章
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journal_title：Scientific reports
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pub_type： 杂志文章
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pub_type： 杂志文章,已发布勘误
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pub_type： 杂志文章,meta分析
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pub_type： 临床试验,杂志文章
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pub_type： 已发布勘误
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