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Neu is so named because it was derived from a rodent glioblastoma cell line, a type of neural tumor. ErbB-2 was named for its similarity to ErbB (avian erythroblastosis oncogene B), the oncogene later found to code for EGFR. Molecular cloning of the gene showed that HER2, Neu, and ErbB-2 are all encoded by the same orthologs. [10]
The prognosis of the most common form of invasive carcinoma NST is intermediate. Regardless of the histological subtype, the prognosis of IDC depends also on tumor size, presence of cancer in the lymph nodes, histological grade, presence of cancer in small vessels (vascular invasion), expression of hormone receptors and of oncogenes like HER2/neu.
ERBB2/HER2-amplified: has overexpressed HER2/neu [40] Normal breast-like [ 39 ] [ 46 ] [ 49 ] Claudin -low: a more recently described class; often triple-negative, but distinct in that there is low expression of cell-cell junction proteins [ 48 ] including E-cadherin [ 48 ] and frequently there is infiltration with lymphocytes .
This test is intended for women with early-stage (Stage I or II), node-negative, estrogen receptor-positive (ER+) invasive breast cancer who will be treated with hormone therapy. Oncotype DX looks at a panel of 21 genes in cells taken during tumor biopsy .
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]
The molecule is highly expressed in a variety of cancer cell types, most notably breast cancer. As such, antibodies against HER2/neu have been FDA approved for clinical treatment of cancer under the drug name Herceptin. There are commercially available immunohistochemical tests, Dako HercepTest, Leica Biosystems Oracle [26] and Ventana Pathway ...
A new approach to a routine blood test could predict a person’s 30-year risk of heart disease, research published Saturday in the New England Journal of Medicine found.. Doctors have long ...
Trastuzumab targets the Her2/neu (also known as ErbB2) receptor expressed in some types of breast cancer; Alemtuzumab; Cetuximab target the epidermal growth factor receptor . It is approved for use in the treatment of metastatic colorectal cancer [24] [25] and squamous cell carcinoma of the head and neck. [26] [27] Panitumumab also targets the ...
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