Investigation of the fatty acid transporter-encoding genes SLC27A3 and SLC27A4 in autism

Motoko Maekawa, Yoshimi Iwayama, Tetsuo Ohnishi, Manabu Toyoshima, Chie Shimamoto, Yasuko Hisano, Tomoko Toyota, Shabeesh Balan, Hideo Matsuzaki, Yasuhide Iwata, Shu Takagai, Kohei Yamada, Motonori Ota, Satoshi Fukuchi, Yohei Okada, Wado Akamatsu, Masatsugu Tsujii, Nobuhiko Kojima, Yuji Owada, Hideyuki Okano & 2 others Norio Mori, Takeo Yoshikawa

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The solute carrier 27A (SLC27A) gene family encodes fatty acid transport proteins (FATPs) and includes 6 members. During fetal and postnatal periods of development, the growing brain requires a reliable supply of fatty acids. Because autism spectrum disorders (ASD) are now recognized as disorders caused by impaired early brain development, it is possible that functional abnormalities of SLC27A genes may contribute to the pathogenesis of ASD. Here, we confirmed the expression of SLC27A3 and SLC27A4 in human neural stem cells derived from human induced pluripotent stem cells, which suggested their involvement in the developmental stage of the central nervous system. Additionally, we resequenced the SLC27A3 and SLC27A4 genes using 267 ASD patient and 1140 control samples and detected 47 (44 novel and 29 nonsynonymous) and 30 (17 novel and 14 nonsynonymous) variants for the SLC27A3 and SLC27A4, respectively, revealing that they are highly polymorphic with multiple rare variants. The SLC27A4 Ser209 allele was more frequently represented in ASD samples. Furthermore, we showed that a SLC27A4 Ser209 mutant resulted in significantly higher fluorescently-labeled fatty acid uptake into bEnd3 cells, a mouse brain capillary-derived endothelial cell line, compared with SLC27A4 Gly209, suggesting that the functional change may contribute to ASD pathophysiology.

Original languageEnglish
Article number16239
JournalScientific Reports
Volume5
DOIs
Publication statusPublished - 2015 Nov 9

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Autistic Disorder
Fatty Acids
Genes
Brain
Fatty Acid Transport Proteins
Induced Pluripotent Stem Cells
Neural Stem Cells
Central Nervous System
Endothelial Cells
Alleles
Autism Spectrum Disorder
Cell Line

ASJC Scopus subject areas

  • General

Cite this

Maekawa, M., Iwayama, Y., Ohnishi, T., Toyoshima, M., Shimamoto, C., Hisano, Y., ... Yoshikawa, T. (2015). Investigation of the fatty acid transporter-encoding genes SLC27A3 and SLC27A4 in autism. Scientific Reports, 5, [16239]. https://doi.org/10.1038/srep16239

Investigation of the fatty acid transporter-encoding genes SLC27A3 and SLC27A4 in autism. / Maekawa, Motoko; Iwayama, Yoshimi; Ohnishi, Tetsuo; Toyoshima, Manabu; Shimamoto, Chie; Hisano, Yasuko; Toyota, Tomoko; Balan, Shabeesh; Matsuzaki, Hideo; Iwata, Yasuhide; Takagai, Shu; Yamada, Kohei; Ota, Motonori; Fukuchi, Satoshi; Okada, Yohei; Akamatsu, Wado; Tsujii, Masatsugu; Kojima, Nobuhiko; Owada, Yuji; Okano, Hideyuki; Mori, Norio; Yoshikawa, Takeo.

In: Scientific Reports, Vol. 5, 16239, 09.11.2015.

Research output: Contribution to journalArticle

Maekawa, M, Iwayama, Y, Ohnishi, T, Toyoshima, M, Shimamoto, C, Hisano, Y, Toyota, T, Balan, S, Matsuzaki, H, Iwata, Y, Takagai, S, Yamada, K, Ota, M, Fukuchi, S, Okada, Y, Akamatsu, W, Tsujii, M, Kojima, N, Owada, Y, Okano, H, Mori, N & Yoshikawa, T 2015, 'Investigation of the fatty acid transporter-encoding genes SLC27A3 and SLC27A4 in autism', Scientific Reports, vol. 5, 16239. https://doi.org/10.1038/srep16239
Maekawa M, Iwayama Y, Ohnishi T, Toyoshima M, Shimamoto C, Hisano Y et al. Investigation of the fatty acid transporter-encoding genes SLC27A3 and SLC27A4 in autism. Scientific Reports. 2015 Nov 9;5. 16239. https://doi.org/10.1038/srep16239
Maekawa, Motoko ; Iwayama, Yoshimi ; Ohnishi, Tetsuo ; Toyoshima, Manabu ; Shimamoto, Chie ; Hisano, Yasuko ; Toyota, Tomoko ; Balan, Shabeesh ; Matsuzaki, Hideo ; Iwata, Yasuhide ; Takagai, Shu ; Yamada, Kohei ; Ota, Motonori ; Fukuchi, Satoshi ; Okada, Yohei ; Akamatsu, Wado ; Tsujii, Masatsugu ; Kojima, Nobuhiko ; Owada, Yuji ; Okano, Hideyuki ; Mori, Norio ; Yoshikawa, Takeo. / Investigation of the fatty acid transporter-encoding genes SLC27A3 and SLC27A4 in autism. In: Scientific Reports. 2015 ; Vol. 5.
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