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Interplay between HIV-1 infection and host microRNAs Public Deposited

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  • Using microRNA array analyses of in vitro HIV-1-infected CD4(+) cells, we find that several host microRNAs are significantly up- or downregulated around the time HIV-1 infection peaks in vitro. While microRNA-223 levels were significantly enriched in HIV-1-infected CD4(superscript+)CD8(superscript-) PBMCs, microRNA-29a/b, microRNA-155 and microRNA-21 levels were significantly reduced. Based on the potential for microRNA binding sites in a conserved sequence of the Nef-3'-LTR, several host microRNAs potentially could affect HIV-1 gene expression. Among those microRNAs, the microRNA-29 family has seed complementarity in the HIV-1 3'-UTR, but the potential suppressive effect of microRNA-29 on HIV-1 is severely blocked by the secondary structure of the target region. Our data support a possible regulatory circuit at the peak of HIV-1 replication which involves downregulation of microRNA-29, expression of Nef, the apoptosis of host CD4 cells and upregulation of microRNA-223.
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  • Sun, G., Li, H., Wu, X., Covarrubias, M., Scherer, L., Meinking, K., . . . . (2012). Interplay between HIV-1 infection and host microRNAs. Nucleic Acids Research, 40(5), 2181-2196. doi: 10.1093/nar/gkr961
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  • 40
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  • 5
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  • description.provenance : Approved for entry into archive by Deborah Campbell(deborah.campbell@oregonstate.edu) on 2012-07-23T20:31:41Z (GMT) No. of bitstreams: 1 GombartAdrianFBiochemistryBiophysicsInterplayBetweenHIV.pdf: 9583553 bytes, checksum: f4eebc0a76074f8eb1835b294e4fe167 (MD5)
  • description.provenance : Made available in DSpace on 2012-07-23T20:31:41Z (GMT). No. of bitstreams: 1 GombartAdrianFBiochemistryBiophysicsInterplayBetweenHIV.pdf: 9583553 bytes, checksum: f4eebc0a76074f8eb1835b294e4fe167 (MD5) Previous issue date: 2012-03
  • description.provenance : Submitted by Deborah Campbell (deborah.campbell@oregonstate.edu) on 2012-07-23T20:28:57Z No. of bitstreams: 1 GombartAdrianFBiochemistryBiophysicsInterplayBetweenHIV.pdf: 9583553 bytes, checksum: f4eebc0a76074f8eb1835b294e4fe167 (MD5)

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