Related Experiment Video
Updated: Jul 13, 2026

06:44
Assessment of Global DNA Double-Strand End Resection using BrdU-DNA Labeling coupled with Cell Cycle Discrimination Imaging
Published on: April 28, 2021
Tumor suppression by DNA base excision repair.
1Department of Translational Oncology, Experimental Oncology B Laboratory, Istituto Nazionale Ricerca Cancro, Genova, Italy. guido.frosina@istge.it
Mini Reviews in Medicinal Chemistry
|July 14, 2007
Summary
Base excision repair (BER) is crucial for fixing DNA damage. Research is needed to link BER defects to specific tumor types, using lab and population studies.
Area of Science:
- Molecular biology
- Genetics
- Cancer research
Background:
- Base excision repair (BER) is the primary mechanism for repairing endogenous DNA damage.
- Defects in BER are hypothesized to contribute to various tumor types.
- The specific link between BER deficiencies and distinct cancers remains unclear.
Purpose of the Study:
- To investigate the potential connection between Base Excision Repair (BER) pathway defects and the development of different cancer types.
- To explore the utility of in vitro and molecular epidemiology studies in elucidating this relationship.
Main Methods:
- Utilizing in vitro experimental models to assess BER pathway functionality.
- Employing molecular epidemiology techniques to analyze DNA repair variations in human populations.
- Correlating findings from experimental and epidemiological data.
Main Results:
- The abstract does not contain specific results.
- Further research is indicated to establish concrete findings.
Conclusions:
- The relationship between Base Excision Repair (BER) defects and specific tumor types requires further investigation.
- In vitro and molecular epidemiology studies are proposed as key methodologies to unravel this complex issue.
Related Concept Videos
Base Excision Repair
One of the common DNA damages is the chemical alteration of single bases by alkylation, oxidation, or deamination. The altered bases cause mispairing and strand breakage during replication. This type of damage causes minimal change to the DNA double helix structure and can be repaired by the base excision repair (BER) pathways. BER corrects damaged DNA sequences by removing the damaged base and restoring the original base sequence using the complementary strand as a template.
The first step of...
The first step of...
Base Excision Repair
One of the common DNA damages is the chemical alteration of single bases by alkylation, oxidation, or deamination. The altered bases cause mispairing and strand breakage during replication. This type of damage causes minimal change to the DNA double helix structure and can be repaired by the base excision repair (BER) pathways. BER corrects damaged DNA sequences by removing the damaged base and restoring the original base sequence using the complementary strand as a template.
The first step of...
The first step of...
Nucleotide Excision Repair
Overview
Nucleotide Excision Repair
DNA Distortion and Damage
Cells are regularly exposed to mutagens—factors in the environment that can damage DNA and generate mutations. UV radiation is one of the most common mutagens and is estimated to introduce a significant number of changes in DNA. These include bends or kinks in the structure, which can block DNA replication or transcription. If these errors are not fixed, the damage can cause mutations, which in turn can result in cancer or disease depending on which sequences are...
Cells are regularly exposed to mutagens—factors in the environment that can damage DNA and generate mutations. UV radiation is one of the most common mutagens and is estimated to introduce a significant number of changes in DNA. These include bends or kinks in the structure, which can block DNA replication or transcription. If these errors are not fixed, the damage can cause mutations, which in turn can result in cancer or disease depending on which sequences are...
Nucleotide Excision Repair
Overview
Long-patch Base Excision Repair
Since the discovery of the two BER pathways, there has been a debate about how a cell chooses one pathway over the other and the factors determining this selection. Numerous in vitro experiments have pointed out multiple determinants for the sub-pathway selection. These are:

