|
1
|
Sundaresan V, Al-Ramadhani S, Balaraman P, Holt S, Mansel R, Cree I, Larsimont D, Salgado R. Metasin-BLNA: The NHS Solution Cost Effective-Rapid Intraoperative Molecular Assessment of Sentinel Lymph Nodes from Breast Cancer Patients. Eur J Surg Oncol 2011. [DOI: 10.1016/j.ejso.2011.03.039] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
|
|
3
|
Qureshi A, Zheng R, Parlett T, Shi X, Balaraman P, Cheloufi S, Murphy B, Guntermann C, Eagles P. Gene silencing of HIV chemokine receptors using ribozymes and single-stranded antisense RNA. Biochem J 2006; 394:511-8. [PMID: 16293105 PMCID: PMC1408682 DOI: 10.1042/bj20051268] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The chemokine receptors CXCR4 and CCR5 are required for HIV-1 to enter cells, and the progression of HIV-1 infection to AIDS involves a switch in the co-receptor usage of the virus from CCR5 to CXCR4. These receptors therefore make attractive candidates for therapeutic intervention, and we have investigated the silencing of their genes by using ribozymes and single-stranded antisense RNAs. In the present study, we demonstrate using ribozymes that a depletion of CXCR4 and CCR5 mRNAs can be achieved simultaneously in human PBMCs (peripheral blood mononuclear cells), cells commonly used by the virus for infection and replication. Ribozyme activity leads to an inhibition of the cell-surface expression of both CCR5 and CXCR4, resulting in a significant inhibition of HIV-1 replication when PBMCs are challenged with the virus. In addition, we show that small single-stranded antisense RNAs can also be used to silence CCR5 and CXCR4 genes when delivered to PBMCs. This silencing is caused by selective degradation of receptor mRNAs.
Collapse
MESH Headings
- Cells, Cultured
- DNA-Directed RNA Polymerases/metabolism
- Flow Cytometry
- Gene Expression
- Gene Silencing
- HIV-1/physiology
- Humans
- Leukocytes, Mononuclear/metabolism
- Leukocytes, Mononuclear/virology
- RNA, Antisense/biosynthesis
- RNA, Antisense/genetics
- RNA, Antisense/metabolism
- RNA, Catalytic/biosynthesis
- RNA, Catalytic/genetics
- RNA, Catalytic/metabolism
- RNA, Messenger/genetics
- RNA, Messenger/metabolism
- Receptors, CCR5/analysis
- Receptors, CCR5/genetics
- Receptors, CCR5/metabolism
- Receptors, CXCR4/analysis
- Receptors, CXCR4/genetics
- Receptors, CXCR4/metabolism
- Viral Proteins/metabolism
- Virus Replication
Collapse
Affiliation(s)
- Amer Qureshi
- *Randall Division of Cell and Molecular Biophysics, King's College London, University of London, Guy's Campus, London Bridge, London SE1 1UL, U.K
- †Department of Immunology, St Bartholomew's and the Royal London School of Medicine and Dentistry, Queen Mary College, University of London, London EC1A 7BE, U.K
| | - Richard Zheng
- †Department of Immunology, St Bartholomew's and the Royal London School of Medicine and Dentistry, Queen Mary College, University of London, London EC1A 7BE, U.K
| | - Terry Parlett
- *Randall Division of Cell and Molecular Biophysics, King's College London, University of London, Guy's Campus, London Bridge, London SE1 1UL, U.K
| | - Xiaoju Shi
- *Randall Division of Cell and Molecular Biophysics, King's College London, University of London, Guy's Campus, London Bridge, London SE1 1UL, U.K
- †Department of Immunology, St Bartholomew's and the Royal London School of Medicine and Dentistry, Queen Mary College, University of London, London EC1A 7BE, U.K
| | - Priyadhashini Balaraman
- *Randall Division of Cell and Molecular Biophysics, King's College London, University of London, Guy's Campus, London Bridge, London SE1 1UL, U.K
- †Department of Immunology, St Bartholomew's and the Royal London School of Medicine and Dentistry, Queen Mary College, University of London, London EC1A 7BE, U.K
| | - Sihem Cheloufi
- *Randall Division of Cell and Molecular Biophysics, King's College London, University of London, Guy's Campus, London Bridge, London SE1 1UL, U.K
| | - Brendan Murphy
- †Department of Immunology, St Bartholomew's and the Royal London School of Medicine and Dentistry, Queen Mary College, University of London, London EC1A 7BE, U.K
| | - Christine Guntermann
- †Department of Immunology, St Bartholomew's and the Royal London School of Medicine and Dentistry, Queen Mary College, University of London, London EC1A 7BE, U.K
| | - Peter Eagles
- *Randall Division of Cell and Molecular Biophysics, King's College London, University of London, Guy's Campus, London Bridge, London SE1 1UL, U.K
- To whom correspondence should be addressed (email )
| |
Collapse
|