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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Kramer, P. R. Wray, S. |
| Description | Country affiliation: United States Author Affiliation: Kramer PR ( Cellular and Developmental Neurobiology Section, National Institute of Neurological Disorders and Stroke (NINDS), National Institutes of Health (NIH), Bethesda, Maryland 20892, USA.) |
| Abstract | Although a variety of cues have been implicated in axonal targeting during embryogenesis and regeneration, the precise mechanisms guiding olfactory axons remain unclear. Appropriate olfactory axon pathfinding is essential for functional chemoreceptive and pheromone receptive systems. Olfactory axon pathfinding is also necessary for establishment of the neuroendocrine LHRH system, cells critical for reproductive function. LHRH cells exhibit neurophilic migration moving from the nasal region along olfactory axons into the brain. Factors involved in the migration of these neuroendocrine cells are as yet unresolved. We report identification of a novel factor termed nasal embryonic LHRH factor (NELF) that was discovered in a differential screen of migrating versus nonmigrating primary LHRH neurons. NELF is expressed in PNS and CNS tissues during embryonic development, including olfactory sensory cells and LHRH cells. NELF antisense experiments indicate that a reduction in NELF expression decreases olfactory axon outgrowth and the number of LHRH neurons that migrate out of the nasal tissue. These results demonstrate that NELF plays a role as a common guidance molecule for olfactory axon projections and subsequently, either directly or indirectly, in the neurophilic migration of LHRH cells. |
| File Format | HTM / HTML |
| ISSN | 08909369 |
| e-ISSN | 15495477 |
| Journal | Genes & Development |
| Issue Number | 14 |
| Volume Number | 14 |
| Language | English |
| Publisher | Cold Spring Harbor Laboratory Press |
| Publisher Date | 2000-07-15 |
| Publisher Place | United States |
| Access Restriction | Open |
| Subject Keyword | Discipline Molecular Discipline Biology__semicolon__developmental Discipline Biology__semicolon__genetics__semicolon__cell Discipline Biology Gonadotropin-releasing Hormone Metabolism Neurons Cytology Olfactory Nerve Transcription Factors Biosynthesis Genetics Amino Acid Sequence Animals Blotting, Western Cell Membrane Cell Movement Central Nervous System Embryology Dna, Antisense Dna, Complementary Gene Library Immunohistochemistry In Situ Hybridization Mice Molecular Sequence Data Nasal Mucosa Peripheral Nervous System Rna, Messenger Time Factors Physiology |
| Content Type | Text |
| Resource Type | Article |
| Subject | Genetics Developmental Biology |
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