EAG2 potassium channel with evolutionarily conserved function as a brain tumor target.
Nat Neurosci
; 18(9): 1236-46, 2015 Sep.
Article
en En
| MEDLINE
| ID: mdl-26258683
ABSTRACT
Over 20% of the drugs for treating human diseases target ion channels, but no cancer drug approved by the US Food and Drug Administration (FDA) is intended to target an ion channel. We found that the EAG2 (Ether-a-go-go 2) potassium channel has an evolutionarily conserved function for promoting brain tumor growth and metastasis, delineate downstream pathways, and uncover a mechanism for different potassium channels to functionally cooperate and regulate mitotic cell volume and tumor progression. EAG2 potassium channel was enriched at the trailing edge of migrating medulloblastoma (MB) cells to regulate local cell volume dynamics, thereby facilitating cell motility. We identified the FDA-approved antipsychotic drug thioridazine as an EAG2 channel blocker that reduces xenografted MB growth and metastasis, and present a case report of repurposing thioridazine for treating a human patient. Our findings illustrate the potential of targeting ion channels in cancer treatment.
Texto completo:
1
Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Tioridazina
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Neoplasias Encefálicas
/
Sistemas de Liberación de Medicamentos
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Evolución Molecular
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Canales de Potasio Éter-A-Go-Go
Tipo de estudio:
Diagnostic_studies
/
Prognostic_studies
Límite:
Adult
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Animals
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Female
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Humans
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Male
Idioma:
En
Revista:
Nat Neurosci
Asunto de la revista:
NEUROLOGIA
Año:
2015
Tipo del documento:
Article
País de afiliación:
Estados Unidos