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Updated: Jun 21, 2026

Multiplexed Live-Cell Imaging for Drug Responses in Patient-Derived Organoid Models of Cancer
Published on: January 5, 2024
T-oligo induces apoptosis in advanced prostate cancer cells
Munirathinam Gnanasekar1, Sivasakthivel Thirugnanam, Guoxing Zheng
1Department of Biomedical Sciences, University of Illinois, College of Medicine, 1601 Parkview Avenue, Rockford, IL 61107, USA. mgnanas@uic.edu
Abstract:
Prostate cancer is the most frequently diagnosed malignancy in men. As cancer progresses from an androgen-sensitive stage to hormone-refractory stage, it turns resistant to androgen ablation therapy. At this stage, effective newer therapies that induce apoptosis are needed for treatment of prostate cancer. DNA oligonucleotides homologous to the telomere 3' overhang (T-oligo) induce apoptosis in several human cancer cells. In the present study, we studied the effect of T-oligo on prostate cancer cells. Our studies showed that androgen-independent DU-145 cells are sensitive to T-oligo in terms of inhibition of proliferation. Moreover, T-oligo induced DU-145 cells to undergo apoptosis. Therefore, our results are encouraging for further investigation in the potential application of T-oligo as a novel therapeutic approach for prostate cancer, especially the androgen-independent.
Insights
DNA oligonucleotides homologous to the telomere 3' overhang (T-oligo) show promise for treating advanced prostate cancer. T-oligo effectively inhibited proliferation and induced apoptosis in androgen-independent prostate cancer cells.
Area of Science:
- Oncology
- Molecular Biology
- Genetics
Background:
- Prostate cancer is a leading male malignancy.
- Hormone-refractory prostate cancer resists standard androgen ablation therapy.
- Novel therapeutic strategies inducing apoptosis are crucial for advanced stages.
Purpose of the Study:
- To investigate the therapeutic potential of DNA oligonucleotides homologous to the telomere 3' overhang (T-oligo) in prostate cancer.
- To evaluate the effect of T-oligo on androgen-independent prostate cancer cells.
Main Methods:
- Treatment of androgen-independent DU-145 prostate cancer cells with T-oligo.
- Assessment of cell proliferation inhibition.
- Evaluation of apoptosis induction.
Main Results:
- T-oligo significantly inhibited the proliferation of DU-145 cells.
- T-oligo treatment successfully induced apoptosis in DU-145 cells.
- Androgen-independent prostate cancer cells demonstrated sensitivity to T-oligo.
Conclusions:
- T-oligo exhibits potential as a novel therapeutic agent for prostate cancer.
- The findings support further research into T-oligo for treating androgen-independent prostate cancer.
- T-oligo represents a promising strategy for inducing apoptosis in resistant cancer cells.
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