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BACKGROUND:The overall 5‐year survival rate of approximately 60% for head and neck cancer patients has remained essentially unchanged over the past 30 years. MicroRNA‐137 (miR‐137) plays an essential role in cell‐cycle control at the G1/S‐phase checkpoint. However, the aberrant miR‐137 promoter methylation observed in squamous cell carcinoma of the head and neck (SCCHN) suggests a tumor‐specific molecular...
Purpose Recent studies have demonstrated a high frequency of IDH mutations in adult “secondary” malignant gliomas arising from preexisting lower grade lesions, often in young adults, but not in “primary” gliomas. Because pediatric malignant gliomas share some molecular features with adult secondary gliomas, we questioned whether a subset of these tumors also exhibited IDH mutations. Experimental...
BackgroundAlkylating agents are commonly used in the treatment of childhood malignant gliomas. Overexpression of O6‐methylguanine‐DNA methyltransferase (MGMT) constitutes an important mechanism for resistance to such agents, and MGMT status has been associated with outcome in several recent trials. Deficiency in mismatch repair (MMR) function has been implicated in preclinical studies as an additional...
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