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MRE11-RAD50-NBS1 complex alterations and DNA damage response: implications for cancer treatment
Lei Bian1, Yiling Meng1, Meichao Zhang1
1Department of Radiation Oncology, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China.
Abstract:
Genome instability is a hallmark of cancer cells and can be accelerated by defects in cellular responses to DNA damage. This feature of malignant cells opens new avenues for tumor targeted therapy. MRE11-RAD50-NBS1 complex plays a crucial role in sensing and repair of DNA damage. Through interacting with other important players of DNA damage response, MRE11-RAD50-NBS1 complex is engaged in various DNA damage repair pathways. Mutations in any member of this complex may lead to hypersensitivity to genotoxic agents and predisposition to malignancy. It is assumed that the defects in the complex may contribute to tumorigenesis and that treatments targeting the defect may be beneficial to cancer patients. Here, we summarized the recent research findings of the role of MRE11-RAD50-NBS1 complex in tumorigenesis, cancer treatment and discussed the potential approaches of targeting this complex to treat cancer.
Insights
Defects in the MRE11-RAD50-NBS1 complex accelerate cancer genome instability. Targeting this complex offers a promising strategy for novel tumor-targeted cancer therapies.
Area of Science:
- Oncology
- Molecular Biology
- Genetics
Background:
- Genome instability is a key characteristic of cancer.
- DNA damage response pathways are critical for maintaining genomic integrity.
- The MRE11-RAD50-NBS1 complex is vital for DNA damage sensing and repair.
Purpose of the Study:
- To review the role of the MRE11-RAD50-NBS1 complex in cancer development.
- To explore the potential of targeting this complex for cancer treatment.
- To summarize recent research on MRE11-RAD50-NBS1 complex in tumorigenesis and therapy.
Main Methods:
- Literature review of recent research findings.
- Analysis of the MRE11-RAD50-NBS1 complex's function in DNA repair.
- Discussion of therapeutic strategies targeting the complex.
Main Results:
- Mutations in the MRE11-RAD50-NBS1 complex can lead to hypersensitivity to DNA damaging agents.
- Defects in the complex are implicated in cancer predisposition and tumorigenesis.
- The complex's involvement in multiple DNA repair pathways highlights its significance.
Conclusions:
- The MRE11-RAD50-NBS1 complex is a critical player in maintaining genome stability.
- Dysfunction of this complex contributes to cancer development.
- Targeting the MRE11-RAD50-NBS1 complex presents a viable approach for developing new cancer therapies.
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