Gene Arrays, Prognosis, and Therapeutic Interventions
| Autor: | M. Kadri Altundag, Y. Yavuz Ozisik, Cagatay Arslan |
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| Rok vydání: | 2016 |
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| Zdroj: | Breast Disease ISBN: 9783319228426 Breast Disease ISBN: 9783030046057 |
| Popis: | Among women, breast cancer accounts for one-third of cancer cases and is the second most frequent cause of death. Improvements in treatment agents and screening procedures have increased the diagnosis of early breast cancer and survival rates. Adjuvant chemotherapy and endocrine treatment decrease the mortality of early breast cancer by approximately 50 %. However, not all early breast cancer patients benefit equally from adjuvant endocrine treatment and/or chemotherapy. Patients at high risk are classically identified based on clinicopathological factors, such as age, tumor size, histopathological grade, nodal status, hormone and HER2 receptor positivity, and menopausal status. However, for patients with early breast cancer, using these standard clinicopathological factors might not thoroughly show the individual risk of disease recurrence and the benefits from adjuvant systemic chemotherapy. Many patients with early breast cancer do not derive benefit from adjuvant systemic chemotherapy. Quality-of-life issues, acute and long-term side effects of systemic chemotherapy, and the cost of unnecessary treatments are the main factors of concern for this group of patients. Quantitative approaches for defining prognoses and for individualizing treatments are required. In recent years, molecular signatures of gene expression have been correlated with breast cancer recurrence risk. Several tests for genomic expression have been developed and validated on specimens from previous phase III studies to improve the prognostication of early breast cancer patients and/or the prediction of adjuvant systemic treatment. The most commonly used genomic expression-based tests used for prognostic information and for the prediction of chemotherapy benefits in early breast cancer are summarized below. |
| Databáze: | OpenAIRE |
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