Search results
Results from the WOW.Com Content Network
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]
All four ErbB receptor family members are nearly same in the structure having single-chain of modular glycoproteins. [4] This structure is made up of an extracellular region or ectodomain or ligand binding region that contains approximately 620 amino acids, a single transmembrane-spanning region containing approximately 23 residues, and an intracellular cytoplasmic tyrosine kinase domain ...
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 .
In biomedical contexts, a biomarker, or biological marker, is a measurable indicator of some biological state or condition. Biomarkers are often measured and evaluated using blood, urine, or soft tissues [1] to examine normal biological processes, pathogenic processes, or pharmacologic responses to a therapeutic intervention. [2]
Causes of Hypertension. There are many different causes of high blood pressure, but often one single cause isn’t found. When this happens, it’s known as essential hypertension or primary ...
The human ERBB3 gene is located on the long arm of chromosome 12 (12q13). It is encoded by 23,651 base pairs and translates into 1342 amino acids. [5]During human development, ERBB3 is expressed in skin, bone, muscle, nervous system, heart, lungs, and intestinal epithelium. [6]
A complete blood count and serum electrolyte test is usually obtained; [59] when an ovarian cancer is present, these tests often show a high number of platelets (20–25% of patients) and low blood sodium levels due to chemical signals secreted by the tumor. [29] A positive test for inhibin A and inhibin B can indicate a granulosa cell tumor. [31]
The HER2 gene (also known as HER2/neu and ErbB2 gene) is amplified in 20–30% of early-stage breast cancers. [44] Trastuzumab is a monoclonal antibody targeting HER2, inducing an immune-mediated response that causes internalization and recycling of HER2. It may also upregulate cell cycle inhibitors such as p21 Waf1 and p27 Kip1. [58]