Heat-inducible vectors for use in gene therapy

E. W. Gerner, Evan M Hersh, M. Pennington, T. C. Tsang, David T. Harris, F. Vasanwala, J. Brailey

Research output: Contribution to journalArticle

39 Citations (Scopus)

Abstract

The objectives of this study were to quantity and compare the activities of a minimal heat shock (HS) promoter and other promoters used in gene therapy applications, and to identify strategies to amplify the heat inducibility of therapeutic genes. Human tumour cells were transiently or stably transfected with the HS promoter driving expression of reporter genes. HS promoter activity was induced transiently, with maximum activity 16-24 h after HS, and was dependent on temperature. The activity of the minimal HS promoter was similar, after 42°C HS for 1 h, to that of the cytomegalovirus (CMV) promoter. To determine if the HS promoter could be used to activate a second conditional promoter, cells were transiently transfected with vectors containing both the HS and human immunodeficiency virus type 1 (HIV1) promoters. When the IL-2 gene was placed downstream of the HIV1 promoter, IL-2 production was temperature-independent. The addition of the HIV tat gene downstream of the HS promoter caused IL-2 to be induced more than 3 fold after a single 42°C HS. These data indicate that the minimal HS promoter, following activation by clinically attainable temperatures (≤ 42°C), can drive expression of therapeutic genes at levels comparable to the CMV promoter and be used in conjunction with a second conditional promoter to drive temperature-dependent, gene expression.

Original languageEnglish (US)
Pages (from-to)171-181
Number of pages11
JournalInternational Journal of Hyperthermia
Volume16
Issue number2
StatePublished - Mar 2000

Fingerprint

Genetic Therapy
Shock
Hot Temperature
Interleukin-2
Temperature
Cytomegalovirus
HIV-1
tat Genes
Gene Expression
Reporter Genes
Genes
HIV

Keywords

  • Gene expression
  • Heat shock
  • Promoter

ASJC Scopus subject areas

  • Cancer Research
  • Radiological and Ultrasound Technology

Cite this

Gerner, E. W., Hersh, E. M., Pennington, M., Tsang, T. C., Harris, D. T., Vasanwala, F., & Brailey, J. (2000). Heat-inducible vectors for use in gene therapy. International Journal of Hyperthermia, 16(2), 171-181.

Heat-inducible vectors for use in gene therapy. / Gerner, E. W.; Hersh, Evan M; Pennington, M.; Tsang, T. C.; Harris, David T.; Vasanwala, F.; Brailey, J.

In: International Journal of Hyperthermia, Vol. 16, No. 2, 03.2000, p. 171-181.

Research output: Contribution to journalArticle

Gerner, EW, Hersh, EM, Pennington, M, Tsang, TC, Harris, DT, Vasanwala, F & Brailey, J 2000, 'Heat-inducible vectors for use in gene therapy', International Journal of Hyperthermia, vol. 16, no. 2, pp. 171-181.
Gerner EW, Hersh EM, Pennington M, Tsang TC, Harris DT, Vasanwala F et al. Heat-inducible vectors for use in gene therapy. International Journal of Hyperthermia. 2000 Mar;16(2):171-181.
Gerner, E. W. ; Hersh, Evan M ; Pennington, M. ; Tsang, T. C. ; Harris, David T. ; Vasanwala, F. ; Brailey, J. / Heat-inducible vectors for use in gene therapy. In: International Journal of Hyperthermia. 2000 ; Vol. 16, No. 2. pp. 171-181.
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