This project focuses on basic and applied research on human retroviruses, HIV-1 and HTLV-I. It covers three broad areas: I) basic research studying the regulated expression of HIV-1; II) basic research on cellular transformation events as related to HTLV-I; and III) applied research towards developing small molecular inhibitors targeted against HIV-1. Some notable scientific advances from our research program in 2002-2003 include: 1) the finding that human cyclin T1 has a transcriptional activation domain and can be recruited to the HIV-1 LTR by Sp1; 2) the characterization of small Tat pepetides which can be used to inhibit HIV-1 replication; 3) the identification of a small molecule which binds avidly to TAR RNA and which can inhibit HIV-1 replication; 4) the demonstration that the second exon of Tat contains an in vivo replication important function; 5) the finding that Tat is ubiquinated and that ubiquination of Tat does not dictate proteolysi; 6) the elucidation of different requirements for p300 and PCAF in the activation of integrated versus non-integrated HTLV-I LTR; and 7) the unexpected discovery that Tax can repress telomerase expression in human cells.
| Yeung, Man Lung; Houzet, Laurent; Yedavalli, Venkat S R K et al. (2009) A genome-wide short hairpin RNA screening of jurkat T-cells for human proteins contributing to productive HIV-1 replication. J Biol Chem 284:19463-73 |
| Yeung, Man Lung; Bennasser, Yamina; Watashi, Koichi et al. (2009) Pyrosequencing of small non-coding RNAs in HIV-1 infected cells: evidence for the processing of a viral-cellular double-stranded RNA hybrid. Nucleic Acids Res 37:6575-86 |
| Grassmann, Ralph; Jeang, Kuan-Teh (2008) The roles of microRNAs in mammalian virus infection. Biochim Biophys Acta : |
| Jeang, Kuan-Teh (2007) World AIDS Day 2007: AIDS at 26, are we there yet? Retrovirology 4:86 |
| Lee, Jia Hai; Yedavalli, Venkat Rk; Jeang, Kuan-Teh (2007) Activation of HIV-1 expression and replication by cGMP dependent protein kinase type 1-beta (PKG1beta). Retrovirology 4:91 |
| Berkhout, Ben; Jeang, Kuan-Teh (2007) RISCy business: MicroRNAs, pathogenesis, and viruses. J Biol Chem 282:26641-5 |
| Yeung, Man Lung; Bennasser, Yamina; Le, Shu-Yun et al. (2007) RNA interference and HIV-1. Adv Pharmacol 55:427-38 |
| Yeung, Man Lung; Benkirane, Monsef; Jeang, Kuan-Teh (2007) Small non-coding RNAs, mammalian cells, and viruses: regulatory interactions? Retrovirology 4:74 |
| Yedavalli, Venkat R K; Jeang, Kuan-Teh (2007) Methylation: a regulator of HIV-1 replication? Retrovirology 4:9 |
| Triboulet, Robinson; Mari, Bernard; Lin, Yea-Lih et al. (2007) Suppression of microRNA-silencing pathway by HIV-1 during virus replication. Science 315:1579-82 |
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