A Homozygous Mutation in Human PRICKLE1 Causes an Autosomal-Recessive Progressive Myoclonus Epilepsy-Ataxia Syndrome

Alexander G. Bassuk, Robyn H. Wallace, Aimee Buhr, Andrew R. Buller, Zaid Afawi, Masahito Shimojo, Shingo Miyata, Shan Chen, Pedro Gonzalez-Alegre, Hilary L. Griesbach, Shu Wu, Marcus Nashelsky, Eszter K. Vladar, Dragana Antic, Polly J. Ferguson, Sebahattin Cirak, Thomas Voit, Matthew P. Scott, Jeffrey D. Axelrod, Christina GurnettAzhar S. Daoud, Sara Kivity, Miriam Y. Neufeld, Aziz Mazarib, Rachel Straussberg, Simri Walid, Amos D. Korczyn, Diane C. Slusarski, Samuel F. Berkovic, Hatem I. El-Shanti

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Abstract

Progressive myoclonus epilepsy (PME) is a syndrome characterized by myoclonic seizures (lightning-like jerks), generalized convulsive seizures, and varying degrees of neurological decline, especially ataxia and dementia. Previously, we characterized three pedigrees of individuals with PME and ataxia, where either clinical features or linkage mapping excluded known PME loci. This report identifies a mutation in PRICKLE1 (also known as RILP for REST/NRSF interacting LIM domain protein) in all three of these pedigrees. The identified PRICKLE1 mutation blocks the PRICKLE1 and REST interaction in vitro and disrupts the normal function of PRICKLE1 in an in vivo zebrafish overexpression system. PRICKLE1 is expressed in brain regions implicated in epilepsy and ataxia in mice and humans, and, to our knowledge, is the first molecule in the noncanonical WNT signaling pathway to be directly implicated in human epilepsy.

Original languageEnglish
Pages (from-to)572-581
Number of pages10
JournalAmerican Journal of Human Genetics
Volume83
Issue number5
DOIs
Publication statusPublished - 17 Nov 2008

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ASJC Scopus subject areas

  • Genetics
  • Genetics(clinical)

Cite this

Bassuk, A. G., Wallace, R. H., Buhr, A., Buller, A. R., Afawi, Z., Shimojo, M., Miyata, S., Chen, S., Gonzalez-Alegre, P., Griesbach, H. L., Wu, S., Nashelsky, M., Vladar, E. K., Antic, D., Ferguson, P. J., Cirak, S., Voit, T., Scott, M. P., Axelrod, J. D., ... El-Shanti, H. I. (2008). A Homozygous Mutation in Human PRICKLE1 Causes an Autosomal-Recessive Progressive Myoclonus Epilepsy-Ataxia Syndrome. American Journal of Human Genetics, 83(5), 572-581. https://doi.org/10.1016/j.ajhg.2008.10.003