Impaired amino acid transport at the blood brain barrier is a cause of autism spectrum disorder
Tarlungeanu D-C, Deliu E, Dotter C, Kara M, Janiesch P, Scalise M, Galluccio M, Tesulov M, Morelli E, Sönmez F, Bilgüvar K, Ohgaki R, Kanai Y, Johansen A, Esharif S, Ben Omran T, Topcu M, Schlessinger A, Indiveri C, Duncan K, Caglayan A, Günel M, Gleeson J, Novarino G. 2016. Impaired amino acid transport at the blood brain barrier is a cause of autism spectrum disorder. Cell. 167(6), 1481–1494.
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Author
Tarlungeanu, Dora-ClaraISTA;
Deliu, ElenaISTA 
;
Dotter, ChristophISTA ;
Kara, Majdi;
Janiesch, Philipp;
Scalise, Mariafrancesca;
Galluccio, Michele;
Tesulov, Mateja;
Morelli, EmanuelaISTA;
Sönmez, Fatma;
Bilgüvar, Kaya;
Ohgaki, Ryuichi
All
;
Dotter, ChristophISTA ;
Kara, Majdi;
Janiesch, Philipp;
Scalise, Mariafrancesca;
Galluccio, Michele;
Tesulov, Mateja;
Morelli, EmanuelaISTA;
Sönmez, Fatma;
Bilgüvar, Kaya;
Ohgaki, Ryuichi
All
Department
Abstract
Autism spectrum disorders (ASD) are a group of genetic disorders often overlapping with other neurological conditions. We previously described abnormalities in the branched-chain amino acid (BCAA) catabolic pathway as a cause of ASD. Here, we show that the solute carrier transporter 7a5 (SLC7A5), a large neutral amino acid transporter localized at the blood brain barrier (BBB), has an essential role in maintaining normal levels of brain BCAAs. In mice, deletion of Slc7a5 from the endothelial cells of the BBB leads to atypical brain amino acid profile, abnormal mRNA translation, and severe neurological abnormalities. Furthermore, we identified several patients with autistic traits and motor delay carrying deleterious homozygous mutations in the SLC7A5 gene. Finally, we demonstrate that BCAA intracerebroventricular administration ameliorates abnormal behaviors in adult mutant mice. Our data elucidate a neurological syndrome defined by SLC7A5 mutations and support an essential role for the BCAA in human brain function.
Publishing Year
Date Published
2016-12-01
Journal Title
Cell
Acknowledgement
This work was supported by NICHD (P01HD070494) and SFARI (grant 275275) to J.G.G., and FWF (SFB35_3523) to G.N.
We thank A.C. Manzano, Mike Liu, and F. Marr for technical assistance, and R. Shigemoto and the IST Austria Electron Microscopy (EM) Facility for assistance. We acknowledge support from CIDR for genome-wide SNP analysis (X01HG008823) and Broad Institute Center for Mendelian Disorders (UM1HG008900 to D. MacArthur), the Yale Center for Mendelian Disorders (U54HG006504 to M.G.), the Gregory M. Kiez and Mehmet Kutman Foundation (M.G.), Italian Ministry of Instruction University and Research (PON01_00937 to C.I.), and NIH (R01-GM108911 to A.S.). This work was supported by NICHD (P01HD070494) and SFARI (grant 275275) to J.G.G., and FWF (SFB35_3523) to G.N.
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Volume
167
Issue
6
Page
1481 - 1494
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Cite this
Tarlungeanu D-C, Deliu E, Dotter C, et al. Impaired amino acid transport at the blood brain barrier is a cause of autism spectrum disorder. Cell. 2016;167(6):1481-1494. doi:10.1016/j.cell.2016.11.013
Tarlungeanu, D.-C., Deliu, E., Dotter, C., Kara, M., Janiesch, P., Scalise, M., … Novarino, G. (2016). Impaired amino acid transport at the blood brain barrier is a cause of autism spectrum disorder. Cell. Cell Press. https://doi.org/10.1016/j.cell.2016.11.013
Tarlungeanu, Dora-Clara, Elena Deliu, Christoph Dotter, Majdi Kara, Philipp Janiesch, Mariafrancesca Scalise, Michele Galluccio, et al. “Impaired Amino Acid Transport at the Blood Brain Barrier Is a Cause of Autism Spectrum Disorder.” Cell. Cell Press, 2016. https://doi.org/10.1016/j.cell.2016.11.013.
D.-C. Tarlungeanu et al., “Impaired amino acid transport at the blood brain barrier is a cause of autism spectrum disorder,” Cell, vol. 167, no. 6. Cell Press, pp. 1481–1494, 2016.
Tarlungeanu D-C, Deliu E, Dotter C, Kara M, Janiesch P, Scalise M, Galluccio M, Tesulov M, Morelli E, Sönmez F, Bilgüvar K, Ohgaki R, Kanai Y, Johansen A, Esharif S, Ben Omran T, Topcu M, Schlessinger A, Indiveri C, Duncan K, Caglayan A, Günel M, Gleeson J, Novarino G. 2016. Impaired amino acid transport at the blood brain barrier is a cause of autism spectrum disorder. Cell. 167(6), 1481–1494.
Tarlungeanu, Dora-Clara, et al. “Impaired Amino Acid Transport at the Blood Brain Barrier Is a Cause of Autism Spectrum Disorder.” Cell, vol. 167, no. 6, Cell Press, 2016, pp. 1481–94, doi:10.1016/j.cell.2016.11.013.
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