The expression of a human immunodeficiency virus (HIV) type 1 provirus (F2-HIV) cloned from a nonproducer, chronically infected CD4 down-regulated Hut-78 cell clone (F12) does not lead to the formation of viral particles and, upon transfection in HeLa CD4+ cells, confers resistance to HIV superinfection without affecting the CD4 receptor exposure. In an attempt to transfer the anti-HIV properties of F12-HIV into human primary cells, we constructed a Moloney murine leukemia virus-based retroviral vector containing an F12-HIV genome lacking the 3' long terminal repeat and part of the nef gene, which was expressed under the control of its 5' long terminal repeat. The F12-HIV genome was inserted in the orientation opposite to that of the murine leukemia virus transcriptional unit and was designated the N2/F12-HIV nef- antisense vector. Lymphoblastoid CEMss cells, as well as human peripheral blood lymphocytes, were successfully transduced by the recombinant retrovirus emerging from the producer PA317 clones. CEMss clones expressing the F12-HIV nef-antisense vector became resistant to HIV superinfection even at the highest utilized multiplicity of infection (105 50% tissue culture infective doses per 106 cells). In transduced CEMss cells the viral interference induced by the F12-HIV expression is not due to CD4 HIV receptor down-regulation. Nonproducer, interfering HIV proviruses transduced into retroviral vectors may, therefore, provide an alternative strategy for the protection of CD4+ human primary cells from HIV infection, which strategy may be used in designating a safe and efficient gene therapy protocol for patients with AIDS.

A nonproducer, interfering human immunodeficiency virus (HIV) type 1 provirus can be transduced through a murine leukemia virus-based retroviral vector: Recovery of an anti-HIV mouse/human pseudotype retrovirus / Federico, M.; Nappi, F.; Ferrari, G.; Chelucci, C.; Mavilio, F.; Verani, P.. - In: JOURNAL OF VIROLOGY. - ISSN 0022-538X. - 69:11(1995), pp. 6618-6626. [10.1128/jvi.69.11.6618-6626.1995]

A nonproducer, interfering human immunodeficiency virus (HIV) type 1 provirus can be transduced through a murine leukemia virus-based retroviral vector: Recovery of an anti-HIV mouse/human pseudotype retrovirus

Mavilio F.;
1995

Abstract

The expression of a human immunodeficiency virus (HIV) type 1 provirus (F2-HIV) cloned from a nonproducer, chronically infected CD4 down-regulated Hut-78 cell clone (F12) does not lead to the formation of viral particles and, upon transfection in HeLa CD4+ cells, confers resistance to HIV superinfection without affecting the CD4 receptor exposure. In an attempt to transfer the anti-HIV properties of F12-HIV into human primary cells, we constructed a Moloney murine leukemia virus-based retroviral vector containing an F12-HIV genome lacking the 3' long terminal repeat and part of the nef gene, which was expressed under the control of its 5' long terminal repeat. The F12-HIV genome was inserted in the orientation opposite to that of the murine leukemia virus transcriptional unit and was designated the N2/F12-HIV nef- antisense vector. Lymphoblastoid CEMss cells, as well as human peripheral blood lymphocytes, were successfully transduced by the recombinant retrovirus emerging from the producer PA317 clones. CEMss clones expressing the F12-HIV nef-antisense vector became resistant to HIV superinfection even at the highest utilized multiplicity of infection (105 50% tissue culture infective doses per 106 cells). In transduced CEMss cells the viral interference induced by the F12-HIV expression is not due to CD4 HIV receptor down-regulation. Nonproducer, interfering HIV proviruses transduced into retroviral vectors may, therefore, provide an alternative strategy for the protection of CD4+ human primary cells from HIV infection, which strategy may be used in designating a safe and efficient gene therapy protocol for patients with AIDS.
1995
69
11
6618
6626
A nonproducer, interfering human immunodeficiency virus (HIV) type 1 provirus can be transduced through a murine leukemia virus-based retroviral vector: Recovery of an anti-HIV mouse/human pseudotype retrovirus / Federico, M.; Nappi, F.; Ferrari, G.; Chelucci, C.; Mavilio, F.; Verani, P.. - In: JOURNAL OF VIROLOGY. - ISSN 0022-538X. - 69:11(1995), pp. 6618-6626. [10.1128/jvi.69.11.6618-6626.1995]
Federico, M.; Nappi, F.; Ferrari, G.; Chelucci, C.; Mavilio, F.; Verani, P.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11380/1248041
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