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Published on: January 12, 2020
Nuclear endonuclease G controls cell proliferation in ovarian cancer
Ye Na Choi1, Tae Woong Seo1, Yui Taek Lee1
1Department of Biology, Kyung Hee University, Seoul, South Korea.
Abstract:
Ovarian cancer is characterized by a high degree of genetic heterogeneity. Platinum-based chemotherapy and some gene-targeted therapies have shown limited treatment efficacy due to toxicity and recurrence, and thus, it is essential to identify additional therapeutic targets based on an understanding of the pathological mechanism. Here, we report that endonuclease G, which exhibits altered expression in ovarian cancer, does not function as a cell death effector that digests chromosomal DNA in ovarian cancer. Endonuclease G is modulated by intracellular reactive oxygen species dynamics and plays a role in cell proliferation in ovarian cancer, suggesting that targeting endonuclease G alone or in combination with other antitumor agents may have the potential for development into a treatment for endonuclease G-overexpressing cancers, including ovarian cancer.
Insights
Endonuclease G does not cause cell death in ovarian cancer but influences proliferation. Targeting this enzyme may offer new therapeutic strategies for ovarian cancer treatment.
Area of Science:
- Oncology
- Molecular Biology
- Biochemistry
Background:
- Ovarian cancer exhibits significant genetic heterogeneity.
- Current treatments like chemotherapy have limited efficacy due to toxicity and recurrence.
- Identifying novel therapeutic targets is crucial for improving ovarian cancer treatment outcomes.
Purpose of the Study:
- To investigate the role of endonuclease G in ovarian cancer.
- To determine if endonuclease G functions as a cell death effector in ovarian cancer.
- To explore the potential of targeting endonuclease G as a therapeutic strategy.
Main Methods:
- Analysis of endonuclease G expression in ovarian cancer.
- Investigation of endonuclease G's function in relation to cell death and DNA digestion.
- Assessment of the modulation of endonuclease G by reactive oxygen species.
- Evaluation of endonuclease G's role in ovarian cancer cell proliferation.
Main Results:
- Endonuclease G expression is altered in ovarian cancer.
- Endonuclease G does not function as a cell death effector by digesting chromosomal DNA in ovarian cancer.
- Endonuclease G activity is modulated by intracellular reactive oxygen species dynamics.
- Endonuclease G plays a role in ovarian cancer cell proliferation.
Conclusions:
- Endonuclease G's role in ovarian cancer is not as a DNA-degrading cell death effector.
- Endonuclease G's involvement in proliferation, modulated by reactive oxygen species, presents a potential therapeutic target.
- Targeting endonuclease G, alone or in combination, may offer a novel treatment approach for ovarian cancer and other cancers with high endonuclease G expression.
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