Breast Cancer: From Genetic Predisposition to Personalized Treatment
Breast cancer is the most common malignancy in women. However, thanks to advances in medicine, patient survival and quality of life have improved dramatically. One of the main reasons is the transition from a “general” approach to targeted and personalized treatment, which takes into account the biology of each tumor and the specific characteristics of each woman.
The importance of prevention and early diagnosis
Prevention and early diagnosis are the first link in this chain. Regular mammography, clinical examination and awareness of symptoms lead to the detection of cancer at a stage where it can be effectively treated. However, beyond detection, modern oncology also focuses on “why” cancer develops, proceeding to genetic and molecular testing.
The role of genetic predisposition
Approximately 5–10% of breast cancer cases are related to ovarian, but also to inherited genetic mutations, the best known being BRCA1 and BRCA2. Women who carry such mutations have an increased risk of developing breast cancer and are eligible for preventive screening and intervention.
Genetic testing, when performed in a targeted manner and with proper guidance, offers valuable information for prevention and family planning.
From molecular biology to personalized therapy
Understanding the molecular biology of tumors has radically changed the treatment of the disease. We are no longer talking about a single “breast cancer” but about different biological subtypes, each with its own behavior and therapeutic strategy. The main markers that determine treatment are:
– Hormone receptors (estrogen and progesterone): when positive, hormonal therapies are used.
– The HER2 marker: when positive, it is treated with specifically targeted drugs (such as trastuzumab, pertuzumab and newer inhibitors).
– Triple-negative tumors, which do not express any of the above markers and are a field where immunotherapy and PARP inhibitors have already opened up new avenues.
Molecular tests and avoiding unnecessary treatments
In the early stages of the disease, tests such as Oncotype DX or MammaPrint allow the assessment of the risk of recurrence and help in making a decision on whether or not chemotherapy is needed. This avoids treatments without real benefit, reduces toxicity and improves the quality of life of patients.
Holistic approach to women’s care
Individualized treatment does not stop in the laboratory. The overall treatment of a woman with breast cancer takes into account her age, general condition, comorbidities, but also her personal preferences. The collaboration of an oncologist, surgeon, radiation therapist, psychologist and nutritionist creates a comprehensive treatment plan that respects the uniqueness of each patient.
Hope, Precision, and Humanity
October, Breast Cancer Awareness Month, reminds us that prevention saves lives, but also that science is advancing at an impressive pace. From genetic predisposition to personalized treatment, modern oncology offers hope, precision, and humanity — three elements that make up the future of breast cancer care.
