A protein typically associated with neurodegenerative diseases like Alzheimer’s might help scientists explore how gliomas, a type of cancerous brain tumor, become so aggressive.
The new study, in mouse models and human brain tumor tissues, was published in Science Translational Medicine and found a significant expression of the protein TAU in glioma cells, especially in those patients with better prognoses.
Patients with glioma are given a better prognosis when their tumor expresses a mutation in a gene called isocitrate dehydrogenase 1 (IDH1). In this international collaborative study, those IDH1 mutations stimulated the expression of TAU. Then, the presence of TAU acted as a brake for the formation of new blood vessels, which are necessary for the aggressive behavior of the tumors.
“We report that the levels of microtubule-associated protein TAU, which have been associated with neurodegenerative diseases, are epigenetically controlled by the balance between normal and mutant IDH1/2 in mouse and human gliomas,” says co-author. “In IDH1/2 mutant tumors, we found that expression levels of TAU decreased with tumor progression.”
That means levels of TAU could be used as a biomarker for tumor progression in mutant IDH1/2 gliomas, the author says.
https://labblog.uofmhealth.org/lab-notes/study-uncovers-unexpected-connection-between-gliomas-neurodegenerative-diseases
https://stm.sciencemag.org/content/12/527/eaax1501.editor-summary
Gliomas and Neurodegenerative Diseases are Connected?
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