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. 2001 Sep;7(9):1010-5.
doi: 10.1038/nm0901-1010.

Glutamate release promotes growth of malignant gliomas

T Takano  1 , J H Lin, G Arcuino, Q Gao, J Yang, M Nedergaard
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VSports - Glutamate release promotes growth of malignant gliomas

T Takano et al. Nat Med. 2001 Sep.

"V体育官网" Abstract

Glutamate neurotoxicity has been implicated in stroke, head trauma, multiple sclerosis and neurodegenerative diseases. Although recent data show that cultured glioma cells secrete glutamate, the growth potential of brain tumors has not yet been linked to an excitotoxic mechanism VSports手机版. Using bioluminescence detection of glutamate release from freshly prepared brain slices, we show that implanted glioma cells continue to secrete glutamate. Moreover, gliomas with high glutamate release have a distinct growth advantage in host brain that is not present in vitro. Treatment with the NMDA receptor antagonists MK801 or memantine slowed the growth of glutamate-secreting tumors in situ, suggesting that activation of NMDA receptors facilitates tumor expansion. These findings support a new approach for therapy of brain tumors, based upon antagonizing glutamate secretion or its target receptors. .

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