論文 - 詳細
| RRC ID | 45833 |
|---|---|
| 著者 | Qin J, Liang J, Ding M. |
| タイトル | Perlecan antagonizes collagen IV and ADAMTS9/GON-1 in restricting the growth of presynaptic boutons. |
| ジャーナル | J Neurosci |
| Abstract |
In the mature nervous system, a significant fraction of synapses are structurally stable over a long time scale. However, the mechanisms that restrict synaptic growth within a confined region are poorly understood. Here, we identified that in the C. elegans neuromuscular junction, collagens Type IV and XVIII, and the secreted metalloprotease ADAMTS/GON-1 are critical for growth restriction of presynaptic boutons. Without these components, ectopic boutons progressively invade into the nonsynaptic region. Perlecan/UNC-52 promotes the growth of ectopic boutons and functions antagonistically to collagen Type IV and GON-1 but not to collagen XVIII. The growth constraint of presynaptic boutons correlates with the integrity of the extracellular matrix basal lamina or basement membrane (BM), which surrounds chemical synapses. Fragmented BM appears in the region where ectopic boutons emerge. Further removal of UNC-52 improves the BM integrity and the tight association between BM and presynaptic boutons. Together, our results unravel the complex role of the BM in restricting the growth of presynaptic boutons and reveal the antagonistic function of perlecan on Type IV collagen and ADAMTS protein. |
| 巻・号 | 34(31) |
| ページ | 10311-24 |
| 公開日 | 2014-7-30 |
| DOI | 10.1523/JNEUROSCI.5128-13.2014 |
| PII | 34/31/10311 |
| PMID | 25080592 |
| PMC | PMC6608278 |
| MeSH | Animals Animals, Genetically Modified Caenorhabditis elegans Caenorhabditis elegans Proteins / genetics Caenorhabditis elegans Proteins / metabolism* Collagen Type IV / metabolism* Gene Expression Regulation, Developmental / genetics Heparan Sulfate Proteoglycans / genetics Heparan Sulfate Proteoglycans / metabolism* Imaging, Three-Dimensional Luminescent Proteins / genetics Male Metalloendopeptidases / genetics Metalloendopeptidases / metabolism* Microscopy, Electron, Transmission Neuromuscular Junction / cytology* Optical Imaging Presynaptic Terminals / metabolism* Presynaptic Terminals / ultrastructure* RNA Interference / physiology |
| IF | 5.674 |
| 引用数 | 15 |
| WOS 分野 | NEUROSCIENCES |
| オルトメトリクス指標 |
オルトメトリクス指標項目
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| 最多言及媒体 | X(Twitter) |
| 各媒体での言及数の合計 | 2 |
| 過去6か月間でのオルトメトリクス指標の変動値 | 0.0 |
| リソース情報 | |
| 線虫 | tm1092 |