A novel murine long-chain acyl-CoA synthetase expressed in brain participates in neuronal cell proliferation

Refsum disease (RfD) is an autosomal recessive neurologic disorder of the lipid metabolism. We have identified a novel murine long-chain acyl-CoA synthetase (mLACS) associated with the RfD gene using yeast two-hybrid assay. Northern blot analyses revealed that mLACS was expressed mainly in the brain...

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Veröffentlicht in:Biochemical and biophysical research communications 2003-06, Vol.305 (4), p.925-933
Hauptverfasser: Kee, Hae Jin, Koh, Jeong Tae, Yang, Sung Yeul, Lee, Zang Hee, Baik, Yung Hong, Kim, Kyung Keun
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container_title Biochemical and biophysical research communications
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creator Kee, Hae Jin
Koh, Jeong Tae
Yang, Sung Yeul
Lee, Zang Hee
Baik, Yung Hong
Kim, Kyung Keun
description Refsum disease (RfD) is an autosomal recessive neurologic disorder of the lipid metabolism. We have identified a novel murine long-chain acyl-CoA synthetase (mLACS) associated with the RfD gene using yeast two-hybrid assay. Northern blot analyses revealed that mLACS was expressed mainly in the brain and testis. mLACS was highly expressed in the brain at 2 weeks after birth and maintained through adult life. Expressions of the brain-specific LACS family increased in the PC12 cells undergoing neurite outgrowth by nerve growth factor. mLACS preferentially catalyzed the formation of arachidonoyl-CoA more than palmitoyl-CoA or oleoyl-CoA in PC12 cells. Triacsin C, an inhibitor of LACS, suppressed the cell proliferation and decreased mLACS expression in parent PC12 cells, but not in stably anti-sense mLACS cDNA-transfected cells. Our results indicate that mLACS participates in neuronal cell proliferation and differentiation, and interaction of the RfD gene with brain-selective mLACS may be involved in the pathogenesis of RfD.
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subjects Amino Acid Sequence
Animals
Brain - enzymology
Brain-specific
Cell Division
Cell Line
Cell Survival
Cloning, Molecular
Coenzyme A Ligases - genetics
Coenzyme A Ligases - metabolism
Coenzyme A Ligases - physiology
Enzyme Inhibitors - pharmacology
Long-chain acyl-CoA synthetase
Mice
Mixed Function Oxygenases - metabolism
Molecular Sequence Data
Nerve Growth Factor - pharmacology
Neurons - enzymology
PC12 Cells
Phytanoyl-CoA α-hydroxylase
Rats
Refsum disease
Repressor Proteins
Saccharomyces cerevisiae Proteins
Sequence Alignment
Tissue Distribution
Transcription, Genetic
Triacsin C
Triazenes - pharmacology
title A novel murine long-chain acyl-CoA synthetase expressed in brain participates in neuronal cell proliferation
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