A mouse model for Glut-1 haploinsufficiency

Dong Wang, Juan M. Pascual, Hong Yang, Kristin Engelstad, Xia Mao, Jianfeng Cheng, Jong Yoo, Jeffrey L. Noebels, Darryl C. De Vivo

Research output: Contribution to journalArticle

123 Scopus citations

Abstract

Glut-1 deficiency syndrome (Glut-1 DS, OMIM #606777) is characterized by infantile seizures, developmental delay, acquired microcephaly and hypoglycorrhachia. It is caused by haploinsufficiency of the blood-brain barrier hexose carrier. Heterozygous mutations or hemizygosity of the GLUT-1 gene cause Glut-1 DS. We generated a heterozygous haploinsufficient mouse model by targeted disruption of the promoter and exon 1 regions of the mouse GLUT-1 gene. GLUT-1+/- mice have epileptiform discharges on electroencephalography (EEG), impaired motor activity, incoordination, hypoglycorrhachia, microencephaly, decreased brain glucose uptake as measured by positron emission tomography (PET) scan and decreased brain Glut-1 expression by western blot (66%). The GLUT-1+/- murine phenotype mimics the classical human presentation of Glut-1 DS. This GLUT-1+/- mouse model creates an opportunity to investigate Glut-1 function, to examine the pathophysiology of Glut-1 DS in vivo and to evaluate new treatment strategies.

Original languageEnglish (US)
Pages (from-to)1169-1179
Number of pages11
JournalHuman molecular genetics
Volume15
Issue number7
DOIs
StatePublished - Apr 1 2006

ASJC Scopus subject areas

  • Molecular Biology
  • Genetics
  • Genetics(clinical)

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    Wang, D., Pascual, J. M., Yang, H., Engelstad, K., Mao, X., Cheng, J., Yoo, J., Noebels, J. L., & De Vivo, D. C. (2006). A mouse model for Glut-1 haploinsufficiency. Human molecular genetics, 15(7), 1169-1179. https://doi.org/10.1093/hmg/ddl032