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 OkanoNorio Mori, Takeo Yoshikawa

研究成果: Article

4 被引用数 (Scopus)

抄録

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.

本文言語English
論文番号16239
ジャーナルScientific reports
5
DOI
出版ステータスPublished - 2015 11 9

ASJC Scopus subject areas

  • General

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