Cited by 88Virus-based gene therapy researchTelomeres, Telomerase, and SenescenceViral-associated cancers and disorders

Histone deacetylase inhibitor FR901228 enhances the antitumor effect of telomerase-specific replication-selective adenoviral agent OBP-301 in human lung cancer cells

Watanabe, Takanori, Hioki, Masayoshi, Fujiwara, Toshiya, Nishizaki, Masahiko, Kagawa, Shunsuke, Taki, Masaki, Kishimoto, Hiroyuki, Endo, Yoshikatsu +3 more·2006·Experimental Cell Research

Abstract

Replication-competent oncolytic viruses are being developed for human cancer therapy. We previously reported that an attenuated adenovirus OBP-301 (Telomelysin), in which the human telomerase reverse transcriptase promoter element drives expression of E1A and E1B genes linked with an internal ribosome entry site, could replicate in and causes selective lysis of human cancer cells. Infection efficiency in target cancer cells is the most important factor that predicts the antitumor effects of OBP-301. The objectives of this study are to examine the effects of the histone deacetylase inhibitor FR901228 on the level of coxsackie and adenovirus receptor (CAR) expression and OBP-301-mediated oncolysis in human non-small cell lung cancer cell lines. Flow cytometric analysis revealed up-regulated CAR expression in A549 and H460 cells following treatment with 1 ng/ml of FR901228, which was associated with increased infection efficiency as confirmed by replication-deficient beta-galactosidase-expressing adenovirus vector. In contrast, neither CAR expression nor infection efficiency was affected by FR901228 in H1299 cells. To visualize and quantify viral replication in the presence of FR901228, we used OBP-401 (Telomelysin-GFP) that expresses the green fluorescent protein (GFP) reporter gene under the control of the cytomegalovirus promoter in the E3 region. Fluorescence microscopy and flow cytometry showed that FR901228 increased GFP expression in A549 and H460 cells following OBP-401 infection in a dose-dependent manner, but this effect did not occur in H1299 cells. In addition, OBP-301 and FR901228 demonstrated a synergistic antitumor effect in A549 cells in vitro, as confirmed by isobologram analysis. Our data indicate that FR901228 preferentially increases adenovirus infectivity via up-regulation of CAR expression, leading to a profound oncolytic effect, which may have a significant impact on the outcome of adenovirus-based oncolytic virotherapy.

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Crossref · 10.1016/j.yexcr.2005.10.026

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Authors
Watanabe, T., Hioki, M., Fujiwara, T., Nishizaki, M., Kagawa, S., Taki, M., Kishimoto, H., Endo, Y., Urata, Y., Tanaka, N., & Fujiwara, T.
Affiliations
  • Okayama University (JP)
  • Oncolys BioPharma (Japan) (JP)
Corresponding author
Fujiwara, Toshiyoshi
Venue
Experimental Cell Research
Publisher
Elsevier BV
Published
2006-02
Volume
312
Issue
3
Pages
256-265
ISSN
0014-4827 (ISSN-L)
OpenAlex
W2064951429
Cited by
88
References
35
Citations by year
2026: 2 · 2025: 2 · 2023: 5 · 2022: 2 · 2021: 1 · 2020: 2 · 2018: 5 · 2017: 3 · 2016: 3 · 2015: 1 · 2014: 4 · 2013: 7 · 2012: 7
FWCI
3.24
Type
journal article
Language
en
Open access
closed
Locations
  • Experimental Cell Research (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Ministry of Education, Culture, Sports, Science and Technology
  • Ministry of Health, Labour and Welfare
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Virus-based gene therapy research
  • Health Sciences › Medicine › Physiology › Telomeres, Telomerase, and Senescence
  • Health Sciences › Medicine › Oncology › Viral-associated cancers and disorders
Keywords
histone deacetylase inhibitors, OBP-301, oncolytic adenovirus, telomerase reverse transcriptase promoter, coxsackievirus and adenovirus receptor, CAR expression, non-small cell lung cancer, oncolytic virotherapy, synergistic antitumor effect, telomerase, A549 cells, H460 cells, H1299 cells
MeSH terms
Adenoviridae, Adenoviridae Infections, Antibiotics, Antineoplastic, Carcinoma, Non-Small-Cell Lung, Cell Cycle, Cell Survival, DNA-Binding Proteins, Enzyme Inhibitors, Flow Cytometry, Humans, Lung Neoplasms, Promoter Regions, Genetic, Receptors, Virus, Virus Replication, Genetic Therapy, Adenovirus E1 Proteins, Telomerase, Cell Line, Tumor, Depsipeptides, Green Fluorescent Proteins, Oncolytic Viruses, Histone Deacetylase Inhibitors, Coxsackie and Adenovirus Receptor-Like Membrane Protein

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