Receptor on neuronal memebrane that induces development of glioma
**Core Concept**
The development of glioma, a type of brain tumor, is influenced by various molecular mechanisms, including the activation of specific receptors on neuronal membranes. This interaction can lead to the proliferation and survival of glioma cells.
**Why the Correct Answer is Right**
The correct answer is related to the epidermal growth factor receptor (EGFR) variant III (EGFRvIII), which is a mutated form of EGFR. This mutation leads to the constitutive activation of the receptor tyrosine kinase, resulting in the phosphorylation of downstream signaling molecules, including Akt and MAPK. The activation of these pathways promotes cell proliferation, survival, and angiogenesis, contributing to glioma development. The EGFRvIII mutation is commonly found in glioblastoma, a highly aggressive form of glioma.
**Why Each Wrong Option is Incorrect**
**Option A:** This option might refer to other types of receptors, such as the platelet-derived growth factor receptor (PDGFR), which plays a role in glioma development but is not the primary receptor involved in the context of glioma induction.
**Option B:** This option might refer to the HER2/neu receptor, which is overexpressed in some breast cancers but is not directly associated with glioma development.
**Option C:** This option might refer to the vascular endothelial growth factor receptor (VEGFR), which plays a role in angiogenesis but is not the primary receptor involved in the context of glioma induction.
**Clinical Pearl / High-Yield Fact**
The EGFRvIII mutation is a well-known marker for glioblastoma, and its presence can influence treatment decisions, including the use of tyrosine kinase inhibitors.
**Correct Answer: C.**