Expression of neurexin Ialpha splice variants in sympathetic neurons: selective changes during differentiation and in response to neurotrophins
Neurexins are a surprisingly diverse group of alternatively spliced proteins possibly involved in neural cell recognition processes. We find neurexin Ialpha and its splice variants highly conserved between mammals and birds. In vivo, neurexin Ialpha is expressed in sympathetic neurons during target...
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Published in | Molecular and cellular neuroscience Vol. 15; no. 6; pp. 561 - 572 |
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Main Authors | , |
Format | Journal Article |
Language | English |
Published |
United States
01.06.2000
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Abstract | Neurexins are a surprisingly diverse group of alternatively spliced proteins possibly involved in neural cell recognition processes. We find neurexin Ialpha and its splice variants highly conserved between mammals and birds. In vivo, neurexin Ialpha is expressed in sympathetic neurons during target innervation and relative expression levels of splice variants change with development. In vitro, no such changes are observed in the absence of growth factors, indicating that interactions with the environment are required to modify the splicing pattern. Specific alterations in splice variant expression are induced in vitro by neurotrophins. Expression patterns of splice variants in vivo and neurotrophin-induced regulation without changes in cell composition in vitro demonstrate that neurexin splice variant expression varies during differentiation of individual neurons. Our data suggest that changes in neurexin splice variants contribute to alterations of neuronal cell surface properties during target innervation. |
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AbstractList | Neurexins are a surprisingly diverse group of alternatively spliced proteins possibly involved in neural cell recognition processes. We find neurexin Ialpha and its splice variants highly conserved between mammals and birds. In vivo, neurexin Ialpha is expressed in sympathetic neurons during target innervation and relative expression levels of splice variants change with development. In vitro, no such changes are observed in the absence of growth factors, indicating that interactions with the environment are required to modify the splicing pattern. Specific alterations in splice variant expression are induced in vitro by neurotrophins. Expression patterns of splice variants in vivo and neurotrophin-induced regulation without changes in cell composition in vitro demonstrate that neurexin splice variant expression varies during differentiation of individual neurons. Our data suggest that changes in neurexin splice variants contribute to alterations of neuronal cell surface properties during target innervation. |
Author | Patzke, H Ernsberger, U |
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BackLink | https://www.ncbi.nlm.nih.gov/pubmed/10860582$$D View this record in MEDLINE/PubMed |
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SubjectTerms | Alternative Splicing - physiology Animals Brain-Derived Neurotrophic Factor - pharmacology Cell Differentiation - drug effects Cell Differentiation - genetics Cells, Cultured Chick Embryo Cloning, Molecular Ganglia, Sympathetic - cytology Ganglia, Sympathetic - embryology Ganglia, Sympathetic - physiology Gene Expression Regulation, Developmental - drug effects Glycoproteins In Situ Hybridization Molecular Sequence Data Nerve Growth Factor - pharmacology Nerve Tissue Proteins - genetics Neuropeptides Neurotrophin 3 - pharmacology RNA, Messenger - analysis Sequence Homology, Amino Acid |
Title | Expression of neurexin Ialpha splice variants in sympathetic neurons: selective changes during differentiation and in response to neurotrophins |
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