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SncRNA715 Inhibits Schwann Cell Myelin Basic Protein Synthesis. 2015

Christina Müller, and Nina M Hochhaus, and Xavier Fontana, and Heiko J Luhmann, and Robin White
Institute of Physiology, University Medical Center of the Johannes Gutenberg University, Mainz, Germany.

Myelin basic proteins (MBP) are major constituents of the myelin sheath in the central nervous system (CNS) and the peripheral nervous system (PNS). In the CNS Mbp translation occurs locally at the axon-glial contact site in a neuronal activity-dependent manner. Recently we identified the small non-coding RNA 715 (sncRNA715) as a key inhibitor of Mbp translation during transport in oligodendrocytes. Mbp mRNA localization in Schwann cells has been observed, but has not been investigated in much detail. Here we could confirm translational repression of Mbp mRNA in Schwann cells. We show that sncRNA715 is expressed and its levels correlate inversely with MBP in cultured Schwann cells and in the sciatic nerve in vivo. Furthermore we could reduce MBP protein levels in cultured Schwann cells by increasing the levels of the inhibitory sncRNA715. Our findings suggest similarities in sncRNA715-mediated translational repression of Mbp mRNA in oligodendrocytes and Schwann cells.

UI MeSH Term Description Entries
D009836 Oligodendroglia A class of large neuroglial (macroglial) cells in the central nervous system. Oligodendroglia may be called interfascicular, perivascular, or perineuronal (not the same as SATELLITE CELLS, PERINEURONAL of GANGLIA) according to their location. They form the insulating MYELIN SHEATH of axons in the central nervous system. Interfascicular Oligodendroglia,Oligodendrocytes,Perineuronal Oligodendroglia,Perineuronal Satellite Oligodendroglia Cells,Perivascular Oligodendroglia,Satellite Cells, Perineuronal, Oligodendroglia,Perineuronal Satellite Oligodendrocytes,Interfascicular Oligodendroglias,Oligodendrocyte,Oligodendrocyte, Perineuronal Satellite,Oligodendrocytes, Perineuronal Satellite,Oligodendroglia, Interfascicular,Oligodendroglia, Perineuronal,Oligodendroglia, Perivascular,Perineuronal Satellite Oligodendrocyte,Satellite Oligodendrocyte, Perineuronal,Satellite Oligodendrocytes, Perineuronal
D002454 Cell Differentiation Progressive restriction of the developmental potential and increasing specialization of function that leads to the formation of specialized cells, tissues, and organs. Differentiation, Cell,Cell Differentiations,Differentiations, Cell
D002460 Cell Line Established cell cultures that have the potential to propagate indefinitely. Cell Lines,Line, Cell,Lines, Cell
D004676 Myelin Basic Protein An abundant cytosolic protein that plays a critical role in the structure of multilamellar myelin. Myelin basic protein binds to the cytosolic sides of myelin cell membranes and causes a tight adhesion between opposing cell membranes. Golli-MBP1 Protein,Golli-MBP2 Protein,HOG5 Protein,HOG7 Protein,MBP1 Protein,MBP2 Protein,MBP3 Protein,MBP4 Protein,Myelin Basic Protein, 17.2 kDa Isoform,Myelin Basic Protein, 18.5 kDa Isoform,Myelin Basic Protein, 20.2 kDa Isoform,Myelin Basic Protein, 21.5 kDa Isoform,Myelin Basic Protein, Isoform 1,Myelin Basic Protein, Isoform 2,Myelin Basic Protein, Isoform 3,Myelin Basic Protein, Isoform 4,Myelin Basic Protein, Isoform 5,Myelin Basic Protein, Isoform 6,Myelin Basic Protein, Isoform 7,Golli MBP1 Protein,Golli MBP2 Protein
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
D012583 Schwann Cells Neuroglial cells of the peripheral nervous system which form the insulating myelin sheaths of peripheral axons. Schwann Cell,Cell, Schwann,Cells, Schwann
D012584 Sciatic Nerve A nerve which originates in the lumbar and sacral spinal cord (L4 to S3) and supplies motor and sensory innervation to the lower extremity. The sciatic nerve, which is the main continuation of the sacral plexus, is the largest nerve in the body. It has two major branches, the TIBIAL NERVE and the PERONEAL NERVE. Nerve, Sciatic,Nerves, Sciatic,Sciatic Nerves
D014176 Protein Biosynthesis The biosynthesis of PEPTIDES and PROTEINS on RIBOSOMES, directed by MESSENGER RNA, via TRANSFER RNA that is charged with standard proteinogenic AMINO ACIDS. Genetic Translation,Peptide Biosynthesis, Ribosomal,Protein Translation,Translation, Genetic,Protein Biosynthesis, Ribosomal,Protein Synthesis, Ribosomal,Ribosomal Peptide Biosynthesis,mRNA Translation,Biosynthesis, Protein,Biosynthesis, Ribosomal Peptide,Biosynthesis, Ribosomal Protein,Genetic Translations,Ribosomal Protein Biosynthesis,Ribosomal Protein Synthesis,Synthesis, Ribosomal Protein,Translation, Protein,Translation, mRNA,mRNA Translations
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
D058727 RNA, Small Untranslated Short RNA, about 200 base pairs in length or shorter, that does not code for protein. Short Noncoding RNA,Small Non-Coding RNA,Small Non-Messenger RNA,Small Non-Protein-Coding RNA,Small Noncoding RNA,Small Untranslated RNA,sncRNA,sncRNAs,Non-Coding RNA, Small,Non-Messenger RNA, Small,Non-Protein-Coding RNA, Small,Noncoding RNA, Short,Noncoding RNA, Small,RNA, Short Noncoding,RNA, Small Non-Coding,RNA, Small Non-Messenger,RNA, Small Non-Protein-Coding,RNA, Small Noncoding,Small Non Coding RNA,Small Non Messenger RNA,Small Non Protein Coding RNA,Untranslated RNA, Small

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