Regulation of oleoyl-CoA synthesis in the peripheral nervous system: demonstration of a link with myelin synthesis. 1998

B Garbay, and F Boiron-Sargueil, and M Shy, and T Chbihi, and H Jiang, and J Kamholz, and C Cassagne
Laboratoire de Biogenèse Membranaire, UMR-CNRS 5544, Université Victor Ségalen Bordeaux 2, France.

We studied the regulation of oleic acid synthesis in the PNS. During mouse postnatal development, the proportion of 18:1 rises in the sciatic nerve from 17% at 5 days of age to 33% at 25 days. However, this rise does not occur in the dysmyelinating mutant mouse trembler. In normal mouse development, the total stearoyl-CoA desaturase (SCD) activity measured in sciatic nerve homogenates is high during the first 3 weeks. Yet in trembler nerves, this SCD activity represents only 15% of normal values. Using the RT-PCR technique, we demonstrate that the SCD2 isoform is predominantly expressed in the PNS. Northern blot analysis showed that the mRNA levels for SCD2 parallel those of other specific myelin proteins in both normal mouse and trembler mutant development. Similar experiments in a rat demyelination-remyelination model confirmed that SCD2 mRNA levels are regulated in the PNS in a similar manner to myelin-specific proteins.

UI MeSH Term Description Entries
D008810 Mice, Inbred C57BL One of the first INBRED MOUSE STRAINS to be sequenced. This strain is commonly used as genetic background for transgenic mouse models. Refractory to many tumors, this strain is also preferred model for studying role of genetic variations in development of diseases. Mice, C57BL,Mouse, C57BL,Mouse, Inbred C57BL,C57BL Mice,C57BL Mice, Inbred,C57BL Mouse,C57BL Mouse, Inbred,Inbred C57BL Mice,Inbred C57BL Mouse
D008818 Mice, Neurologic Mutants Mice which carry mutant genes for neurologic defects or abnormalities. Lurcher Mice,Nervous Mice,Reeler Mice,Staggerer Mice,Weaver Mice,Chakragati Mice,Chakragati Mouse,Lurcher Mouse,Mice, Neurological Mutants,Mouse, Neurologic Mutant,Mouse, Neurological Mutant,Nervous Mouse,Neurologic Mutant Mice,Neurological Mutant Mouse,Reeler Mouse,Staggerer Mouse,Weaver Mouse,ckr Mutant Mice,Mice, Chakragati,Mice, Lurcher,Mice, Nervous,Mice, Neurologic Mutant,Mice, Reeler,Mice, Staggerer,Mice, Weaver,Mice, ckr Mutant,Mouse, Chakragati,Mouse, Lurcher,Mouse, Nervous,Mouse, Reeler,Mouse, Staggerer,Mouse, Weaver,Mutant Mice, Neurologic,Mutant Mice, ckr,Mutant Mouse, Neurologic,Neurologic Mutant Mouse
D008969 Molecular Sequence Data Descriptions of specific amino acid, carbohydrate, or nucleotide sequences which have appeared in the published literature and/or are deposited in and maintained by databanks such as GENBANK, European Molecular Biology Laboratory (EMBL), National Biomedical Research Foundation (NBRF), or other sequence repositories. Sequence Data, Molecular,Molecular Sequencing Data,Data, Molecular Sequence,Data, Molecular Sequencing,Sequencing Data, Molecular
D009186 Myelin Sheath The lipid-rich sheath surrounding AXONS in both the CENTRAL NERVOUS SYSTEMS and PERIPHERAL NERVOUS SYSTEM. The myelin sheath is an electrical insulator and allows faster and more energetically efficient conduction of impulses. The sheath is formed by the cell membranes of glial cells (SCHWANN CELLS in the peripheral and OLIGODENDROGLIA in the central nervous system). Deterioration of the sheath in DEMYELINATING DISEASES is a serious clinical problem. Myelin,Myelin Sheaths,Sheath, Myelin,Sheaths, Myelin
D004789 Enzyme Activation Conversion of an inactive form of an enzyme to one possessing metabolic activity. It includes 1, activation by ions (activators); 2, activation by cofactors (coenzymes); and 3, conversion of an enzyme precursor (proenzyme or zymogen) to an active enzyme. Activation, Enzyme,Activations, Enzyme,Enzyme Activations
D000214 Acyl Coenzyme A S-Acyl coenzyme A. Fatty acid coenzyme A derivatives that are involved in the biosynthesis and oxidation of fatty acids as well as in ceramide formation. Acyl CoA,Fatty Acyl CoA,Long-Chain Acyl CoA,Acyl CoA, Fatty,Acyl CoA, Long-Chain,CoA, Acyl,CoA, Fatty Acyl,CoA, Long-Chain Acyl,Coenzyme A, Acyl,Long Chain Acyl CoA
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D012333 RNA, Messenger RNA sequences that serve as templates for protein synthesis. Bacterial mRNAs are generally primary transcripts in that they do not require post-transcriptional processing. Eukaryotic mRNA is synthesized in the nucleus and must be exported to the cytoplasm for translation. Most eukaryotic mRNAs have a sequence of polyadenylic acid at the 3' end, referred to as the poly(A) tail. The function of this tail is not known for certain, but it may play a role in the export of mature mRNA from the nucleus as well as in helping stabilize some mRNA molecules by retarding their degradation in the cytoplasm. Messenger RNA,Messenger RNA, Polyadenylated,Poly(A) Tail,Poly(A)+ RNA,Poly(A)+ mRNA,RNA, Messenger, Polyadenylated,RNA, Polyadenylated,mRNA,mRNA, Non-Polyadenylated,mRNA, Polyadenylated,Non-Polyadenylated mRNA,Poly(A) RNA,Polyadenylated mRNA,Non Polyadenylated mRNA,Polyadenylated Messenger RNA,Polyadenylated RNA,RNA, Polyadenylated Messenger,mRNA, Non Polyadenylated
D013230 Stearoyl-CoA Desaturase An enzyme that catalyzes the formation of oleoyl-CoA, A, and water from stearoyl-CoA, AH2, and oxygen where AH2 is an unspecified hydrogen donor. Stearyl-CoA Desaturase,Stearate Desaturase,delta-9 Desaturase,Desaturase, Stearate,Desaturase, Stearoyl-CoA,Desaturase, Stearyl-CoA,Desaturase, delta-9,Stearoyl CoA Desaturase,Stearyl CoA Desaturase,delta 9 Desaturase
D051379 Mice The common name for the genus Mus. Mice, House,Mus,Mus musculus,Mice, Laboratory,Mouse,Mouse, House,Mouse, Laboratory,Mouse, Swiss,Mus domesticus,Mus musculus domesticus,Swiss Mice,House Mice,House Mouse,Laboratory Mice,Laboratory Mouse,Mice, Swiss,Swiss Mouse,domesticus, Mus musculus

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