Characterization of ABC transporter ABCB1 expressed in human neural stem/progenitor cells

Mohammed Omedul Islam, Yonehiro Kanemura, Jesmin Tajria, Hideki Mori, Satoshi Kobayashi, Tomoko Shofuda, Jun Miyake, Masayuki Hara, Mami Yamasaki, Hideyuki Okano

研究成果: Article査読

47 被引用数 (Scopus)

抄録

We investigated the localization and functional expression of the ABC transporter ABCB1 in human fetal neural stem/progenitor cells (hNSPCs). RT-PCR analysis revealed ABCB1 gene expression in hNSPCs. We found a single band in immunoblotted hNSPCs lysates probed with ABCB1 antibody, and detected ABCB1 at the hNSPCs cell membrane by immunocytochemistry and subcellular fractionation. ABCB1 inhibitors and substrate, and ATP-depleting agents enhanced hNSPCs' rhodamine 123 accumulation, and hNSPCs microsomes had vanadate-sensitive ATPase activity. ABCB1 and nestin expression decreased during hNSPCs differentiation, while the astroglial marker GFAP increased. ABCB1 may maintain hNSPCs in an undifferentiated state and could be a neural stem/progenitor marker.

本文言語English
ページ(範囲)3473-3480
ページ数8
ジャーナルFEBS Letters
579
17
DOI
出版ステータスPublished - 2005 7月 27

ASJC Scopus subject areas

  • 生物理学
  • 構造生物学
  • 生化学
  • 分子生物学
  • 遺伝学
  • 細胞生物学

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