alexa Cerebrospinal Fluid as a Liquid Biopsy Medium to Detect Brain Tumors

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Cerebrospinal Fluid as a Liquid Biopsy Medium to Detect Brain Tumors

Researchers has validated the use of cerebrospinal fluid (CSF) as a liquid biopsy medium for the potential identification, prognosis, and tracking of brain tumor genomic alterations not in real time prior to and throughout drug treatment regimens. Contrary to low plasma concentration levels, CSF contains very high amounts of circulating tumor DNA (ctDNA). Using a lumbar puncture—colloquially referred to as a spinal tap— the investigators were able to search for ctDNA corresponding to different brain cancers.

Study concluded with Cerebrospinal fluid-derived circulating tumor DNA better represents the genomic alterations of brain tumors than plasma.

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