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[Her2/neu receptor: one of the basic factors rendering tailored therapy feasible in breast cancer patients]
1Orvostudományi Kar, II. Pathologiai Intézet, Budapest. kj@korb2.sote.hu
Abstract:
In a considerable part of breast carcinomas the amount of cell surface Her2/neu receptors has been increased such that it becomes the main factor defining the behaviour of the tumor. At the same time, in such amount, this receptor is easily detectable by simple, routine pathological methods. If we are aware of the exact biological characteristics of a given tumor, targeted therapy may be used since an antibody against the Her2 receptor is already available. This drug, called trastuzumab (Herceptin), has been used in advanced breast carcinoma as adjuvant or primary treatment. In clinical trials its advantage in early stage breast carcinomas has been investigated so far.
Insights
Increased Her2/neu receptors in breast cancer are detectable and targetable. Trastuzumab (Herceptin) offers targeted therapy for advanced cases, with ongoing trials for early-stage breast carcinoma.
Area of Science:
- Oncology
- Molecular Biology
- Pathology
Context:
- A significant subset of breast carcinomas exhibit overexpression of cell surface Her2/neu receptors.
- This overexpression is a key determinant of tumor behavior and is detectable via standard pathological methods.
Purpose:
- To highlight the significance of Her2/neu receptor status in breast cancer.
- To discuss the potential for targeted therapy using antibodies against the Her2 receptor.
Summary:
- Her2/neu receptor overexpression is common in breast carcinomas and influences tumor characteristics.
- The receptor's abundance allows for detection using routine pathological techniques.
- Trastuzumab (Herceptin), an antibody targeting Her2, is utilized in advanced breast cancer treatment and is being evaluated for early-stage disease.
Impact:
- Enables personalized medicine approaches in breast cancer treatment.
- Trastuzumab provides a targeted therapeutic option for patients with Her2-positive tumors.
- Clinical trials are exploring the efficacy of trastuzumab in earlier stages of breast cancer.
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