Abstract
Clinical gene therapy needs non invasive tools to evaluate the efficiency of gene transfer. This includes the evaluation of infection efficiency as well as the verification of successfull gene transfer in terms of gene transcription. These informations can be used for therapy planning, follow up studies in treated tumors and as an indicator of prognosis. Therapy planning is performed by the assessment of gene expression for example using radiolabeled specific substrates to determine the activity of suicide enzymes as the Herpes Simplex Virus thymidine kinase or cytosine deaminase. Furthermore, other in vivo reporter genes as receptors, antigens or transport proteins may be used in bicistronic vector systems for the evaluation of gene transduction and expression. This is done using radiolabeled ligands, antigens or substrates. Follow up studies with magnetic resonance imaging, single photon emission tomography or positron emission tomography may be done to evaluate early or late effects of gene therapy on tumor volume, metabolism or proliferation. Finally, enhancement of radioactive isotope accumulation in tumors by transfer of the appropriate genes may be used for the treatment of malignant tumors.
Keywords: Imaging Methods, Gene Therapy, Cancer, Clinical gene therapy, cytosine deaminase, (MRI), HIV-tat protein, SUICIDE GENE THERAPY, GCV treatment
Current Gene Therapy
Title: Imaging Methods in Gene Therapy of Cancer
Volume: 1 Issue: 2
Author(s): Uwe Haberkorn and Annette Altmann
Affiliation:
Keywords: Imaging Methods, Gene Therapy, Cancer, Clinical gene therapy, cytosine deaminase, (MRI), HIV-tat protein, SUICIDE GENE THERAPY, GCV treatment
Abstract: Clinical gene therapy needs non invasive tools to evaluate the efficiency of gene transfer. This includes the evaluation of infection efficiency as well as the verification of successfull gene transfer in terms of gene transcription. These informations can be used for therapy planning, follow up studies in treated tumors and as an indicator of prognosis. Therapy planning is performed by the assessment of gene expression for example using radiolabeled specific substrates to determine the activity of suicide enzymes as the Herpes Simplex Virus thymidine kinase or cytosine deaminase. Furthermore, other in vivo reporter genes as receptors, antigens or transport proteins may be used in bicistronic vector systems for the evaluation of gene transduction and expression. This is done using radiolabeled ligands, antigens or substrates. Follow up studies with magnetic resonance imaging, single photon emission tomography or positron emission tomography may be done to evaluate early or late effects of gene therapy on tumor volume, metabolism or proliferation. Finally, enhancement of radioactive isotope accumulation in tumors by transfer of the appropriate genes may be used for the treatment of malignant tumors.
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Cite this article as:
Haberkorn Uwe and Altmann Annette, Imaging Methods in Gene Therapy of Cancer, Current Gene Therapy 2001; 1 (2) . https://dx.doi.org/10.2174/1566523013348760
DOI https://dx.doi.org/10.2174/1566523013348760 |
Print ISSN 1566-5232 |
Publisher Name Bentham Science Publisher |
Online ISSN 1875-5631 |
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