Cited by 86Virus-based gene therapy researchBacteriophages and microbial interactionsViral-associated cancers and disorders

Enhanced oncolysis by a tropism-modified telomerase-specific replication-selective adenoviral agent OBP-405 (‘Telomelysin-RGD’)

Open access
Taki, Masaki, Kagawa, Shunsuke, Nishizaki, Masahiko, Mizuguchi, Hiroyuki, Hayakawa, Takao, Kyo, Satoru, Nagai, Katsuyuki, Urata, Yasuo +2 more·2005·Oncogene

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 hTERT promoter element drives expression of E1A and E1B genes linked with an IRES, could replicate in cancer cells, and causes selective lysis of cancer cells. We further constructed OBP-405 ('Telomelysin-RGD') that contains an RGD motif in the HI loop of the fiber knob. We examined whether OBP-405 could be effective in overcoming the limitations of OBP-301, specifically their inefficient infection into cells lacking the primary receptor, the coxsackievirus and adenovirus receptor (CAR). By flow cytometric analysis, H1299 (lung) and SW620 (colorectal) tumor cells showed high levels of CAR expression, whereas LN444 (glioblastoma), LNZ308 (glioblastoma), and H1299-R5 (lung) tumor cells were negative for CAR expression. A quantitative real-time PCR analysis demonstrated that fiber-modified OBP-405 infected more efficiently than OBP-301, although the intracellular replication rate of both viruses was consistent. The comparative antitumor effect of fiber-modified OBP-405 and unmodified OBP-301 for human cancer cells was evaluated in vitro by XTT assay as well as in vivo by using athymic mice carrying xenografts. OBP-405 had a profound oncolytic effect on human cancer cell lines compared to OBP-301, in particular on cells with low CAR expression. Intratumoral injection of 10(7) plaque-forming units of OBP-405 into CAR-negative H1299-R5 lung tumor xenografts in nu/nu mice resulted in a significant inhibition of tumor growth and long-term survival in all treated mice. Moreover, selective replication of OBP-405 in the distant, uninjected H1299-R5 tumors was demonstrated. Our results suggest that fiber-modified replication-competent adenovirus OBP-405 exhibits a broad target range by increasing infection efficiency, an outcome that has important implications for the treatment of human cancers.

Integrity signals

Registry

Crossref · 10.1038/sj.onc.1208460

Cites

27 of 27 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

We couldn’t retrieve this paper’s full text, so its claims and self-check weren’t run. The registry and citation checks still apply.

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • Telomelysin efficiently kills a broad range of cancer cell types, including head and neck, lung, esophageal, pancreatic, hepatic, prostate, cervical cancers, melanoma, sarcoma, and mesothelioma.

    “Indeed, Telomelysin could efficiently kill head and neck, lung, esophageal, pancreatic, hepatic, prostate, and cervical cancers, as well as melanoma, sarcoma, and mesothelioma cells.(106,110)”

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Taki, M., Kagawa, S., Nishizaki, M., Mizuguchi, H., Hayakawa, T., Kyo, S., Nagai, K., Urata, Y., Tanaka, N., & Fujiwara, T.
Affiliations
  • Okayama University (JP)
  • National Institute of Health Sciences (JP)
  • Kanazawa University (JP)
  • Oncolys BioPharma (Japan) (JP)
Corresponding author
Fujiwara, Toshiyoshi
Venue
Oncogene
Published
2005-02-21
Volume
24
Issue
19
Pages
3130-3140
ISSN
  • 0950-9232 (ISSN-L)
  • 1476-5594
OpenAlex
W2022386076
Cited by
86
References
27
Citations by year
2025: 1 · 2024: 1 · 2023: 4 · 2022: 2 · 2020: 1 · 2019: 1 · 2018: 1 · 2017: 1 · 2016: 1 · 2014: 5 · 2013: 6 · 2012: 4
FWCI
4.15
Type
journal article
Language
en
Locations
  • Oncogene (publishedVersion)
  • PubMed (publishedVersion)
  • Institutional Repositories DataBase (IRDB) (submittedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Virus-based gene therapy research
  • Physical Sciences › Environmental Science › Ecology › Bacteriophages and microbial interactions
  • Health Sciences › Medicine › Oncology › Viral-associated cancers and disorders
Keywords
oncolytic adenovirus, OBP-301, telomerase reverse transcriptase promoter, RGD motif, coxsackievirus and adenovirus receptor, lung cancer, colorectal cancer, glioblastoma, tumor xenografts, intratumoral injection, anticancer activity
MeSH terms
Adenoviridae, Animals, Cell Survival, Female, Flow Cytometry, Humans, Indicators and Reagents, Mice, Inbred BALB C, Mice, Nude, Neoplasm Transplantation, Neoplasms, Neoplasms, Experimental, Promoter Regions, Genetic, Receptors, Virus, Tetrazolium Salts, Time Factors, Tissue Distribution, Genetic Therapy, Treatment Outcome, Reverse Transcriptase Polymerase Chain Reaction, Amino Acid Motifs, Cell Line, Tumor, Green Fluorescent Proteins, Mice, Coxsackie and Adenovirus Receptor-Like Membrane Protein

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review