Ovarian cancer is one of the most aggressive forms of gynecological cancer, as it is often diagnosed at an advanced stage. Although many factors can contribute to its occurrence, genetic predisposition plays a decisive role. In this article, we examine what genetic predisposition means, what the main genetic risk factors are, and how prevention and early diagnosis can really save lives.
What is the genetic predisposition for ovarian cancer?
Genetic predisposition refers to inherited mutations that increase the risk of developing cancer. In the case of ovarian cancer, predisposition is mainly associated with mutations in the BRCA1 and BRCA2 genes. These genes are involved in DNA repair and help prevent uncontrolled cell division.
- Women with a BRCA1 mutation have a risk of developing ovarian cancer of up to 44%.
- Women with a BRCA2 mutation have a corresponding risk of up to 17%.
- In the general population, the risk is only 1-2%.
What other genetic factors are associated with ovarian cancer?
In addition to BRCA1 and BRCA2, other gene mutations are associated with an increased risk of ovarian cancer, such as:
- TP53: It often mutates into aggressive forms of cancer.
- RAD51D and RAD51C: They are involved in DNA repair.
- Genes associated with Lynch syndrome: They are associated with an increased risk of colon, endometrial, and ovarian cancers.
Genetic predisposition is not the only risk factor, but it is one of the most important for the implementation of preventive and diagnostic interventions.
Who should undergo genetic testing?
Genetic testing is recommended for women who:
- They have a family history of breast or ovarian cancer, especially at a young age.
- They have already been diagnosed with breast or ovarian cancer and wish to examine whether it is a hereditary form.
- They come from families with known mutations in BRCA or other high-risk genes.
The procedure is simple and is done through a blood test or saliva sample.
How does genetic predisposition affect prevention and treatment?
Knowing the existence of a genetic mutation can lead to personalized prevention and treatment strategies.
- Prevention:
- Regular monitoring with gynecological ultrasounds and markers such as CA-125.
- Surgical prophylaxis, e.g. preventive salpingo-oophorectomy, especially in high-risk women.
- Pharmaceutical prevention using hormonal preparations, such as contraceptives, which have been shown to reduce the risk.
- Treatment:
- Targeted therapies, such as PARP inhibitors, which target cancer cells with defective DNA repair mechanisms.
- Immunotherapy, which activates the immune system to fight cancer cells.
What should women with a genetic predisposition know?
The existence of a genetic mutation does not mean necessary that cancer will develop. However, information and prevention are crucial. These women should:
- They are informed by specialized gynecologists or geneticists.
- They adopt a healthy lifestyle (diet, regular exercise).
- They schedule regular preventive checks.
Conclusion
Genetic predisposition to ovarian cancer is a critical factor in early detection and prevention of the disease. Understanding your genetic risk, getting tested, and taking appropriate steps can make a difference. If you have a family history of cancer, talk to your doctor about genetic testing. Knowledge is power — and in this case, life-saving.
