Antisense epidermal growth factor receptor RNA transfection in human glioblastoma cells down-regulates telomerase activity and telomere length
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Epidermal growth factor receptor is overexpressed and/or amplified in up to 50% of glioblastomas, suggesting an important role of this gene in glial tumorigenesis and progression. In the present study we demonstrated that epidermal growth factor receptor is involved in regulation of telomerase activity in glioblastoma. Antisense-epidermal growth factor receptor approach was used to inhibit epidermal growth factor receptor expression of glioblastoma U87MG cells. Telomerase activity in antisense-epidermal growth factor receptor cells decreased by up to 54 folds compared with control cells. Moreover, the telomere lengths of antisense-epidermal growth factor receptor cells were shortened. In addition, the tumorigenicity of antisense-epidermal growth factor receptor cells was significantly inhibited. Taken together, there were strong correlations between tumorigenicity and epidermal growth factor receptor expression levels, and between tumorigenicity and telomerase activity. These results provide evidence that epidermal growth factor receptor plays an important role in the regulation of telomerase activity of glioma cells. Our findings provide new insights into both the biological functions of epidermal growth factor receptor and the regulation of telomerase activity. The inhibition of telomerase activity triggered by antisense-epidermal growth factor receptor treatment may reflect yet another mechanism of antisense-epidermal growth factor receptor approach in tumour suppression.
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Antisense oligonucleotides targeting EGFR have demonstrated significant inhibition of telomerase activity, along with telomere length reduction in various cell lines.
“Antisense oligonucleotides targeting EGFR have demonstrated significant inhibition of TA, along with TL reduction in various cell lines [216].”
From Current and Future Trends of Colorectal Cancer Treatment: Exploring Advances in Immunotherapy (2024) · cites this paper as [216]
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- Authors
- Tian, X.-X., Pang, J. C.-S., Zheng, J., Chen, J., To, S. S. T., & Ng, H.-K.
- Affiliations
- Peking University (CN)
- Chinese University of Hong Kong (HK)
- Hong Kong Polytechnic University (HK)
- Corresponding author
- Ng, H-K
- Venue
- British Journal of Cancer
- Published
- 2002-04
- Volume
- 86
- Issue
- 8
- Pages
- 1328-1332
- ISSN
- 0007-0920 (ISSN-L)
- 1532-1827
- PMC
- PMC2375350
- OpenAlex
- W2015232413
- Cited by
- 10
- References
- 22
- Citations by year
- 2024: 2 · 2021: 1 · 2019: 1 · 2016: 1 · 2014: 1 · 2013: 1
- FWCI
- 0.00
- Type
- journal article
- Language
- en
- Open access
- hybrid
- doi.org
- Licence
- cc-by-nc-sa
- www.springer.com/tdm (unspecified)
- Locations
- British Journal of Cancer (publishedVersion, cc-by-nc-sa)
- PubMed Central (publishedVersion, cc-by)
- PubMed (publishedVersion)
- PolyU Institutional Research Archive (Hong Kong Polytechnic University) (submittedVersion)
- Funders
- Chinese University of Hong Kong
- Peking University
- Topics
- Health Sciences › Medicine › Physiology › Telomeres, Telomerase, and Senescence
- Health Sciences › Medicine › Oncology › HER2/EGFR in Cancer Research
- Health Sciences › Medicine › Genetics › Glioma Diagnosis and Treatment
- Keywords
- epidermal growth factor receptor, glioblastoma, telomerase activity, telomere length, antisense RNA, gene silencing, tumorigenicity, U87 cells, tumor suppression, telomere shortening
- MeSH terms
- Animals, Glioblastoma, Humans, Mice, Nude, Neoplasm Transplantation, RNA, Messenger, Transfection, Tumor Cells, Cultured, Blotting, Southern, Down-Regulation, RNA, Antisense, Telomere, Telomerase, Mice, ErbB Receptors
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