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Luminal A (ER and/or PR positive; HER2 negative) Luminal B (ER and/or PR positive; HER2 positive) HER2-enriched (ER/PR negative; HER2 positive) Basal like (triple negative). [6] Additionally, cancers can be ER-/PR+ or ER+/PR-, but these are unnamed and relatively rare. [7] The receptor status of a cancer is assessed for all breast cancers as it ...
HER2-positive tumors may be treated with the targeted medical therapy (e.g., trastuzumab). Further information: Breast cancer management and Breast cancer § Management Treatment of non-metastatic invasive breast cancer can vary based on staging, usually early stage (stages I and II) versus locally advanced (stage III).
Triple-negative breast cancer (TNBC) is any breast cancer that either lacks or shows low levels of estrogen receptor (ER), progesterone receptor (PR) and human epidermal growth factor receptor 2 (HER2) overexpression and/or gene amplification (i.e. the tumor is negative on all three tests giving the name triple-negative). [1]
[9] [17] HER2-positive breast cancers are well established as being associated with increased disease recurrence and a poor prognosis compared with other identifiably genetically distinct breast cancers with other known, or lack thereof, genetic markers that are thought to be associated with other breast cancers; however, drug agents targeting ...
ER-positive is one of the Receptor statuses identified in the classification of breast cancer.Receptor status was traditionally considered by reviewing each individual receptor (ER, PR, her2) in turn, but newer approaches look at these together, along with the tumor grade, to categorize breast cancer into several conceptual molecular classes [1] that have different prognoses [2] and may have ...
Cells with none of these receptors are called basal-like or triple negative. HER2-low has some HER2 proteins on the cell surface, but not enough to be classified as HER2-positive. [4] Trastuzumab deruxtecan is the first approved therapy by the US Food and Drug Administration (FDA) targeted to people with the HER2-low breast cancer subtype. [4]
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