Tiny Sacs Released By Brain Tumor Cells Carry Information That May Guide Treatment

Microvesicles - tiny membrane-covered sacs - released from glioblastoma cells contain molecules that may provide data that can guide treatment of the deadly brain tumor. Researchers have found tumor-associated RNA and proteins in membrane microvesicles called exosomes in blood samples from glioblastoma patients. Detailed analysis of exosome contents identified factors that could facilitate a tumor's growth through delivery of genetic information or proteins, or signify its vulnerability to particular medications.

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