論文 - 詳細
| RRC ID | 45709 |
|---|---|
| 著者 | Chew YL, Fan X, Götz J, Nicholas HR. |
| タイトル | Regulation of age-related structural integrity in neurons by protein with tau-like repeats (PTL-1) is cell autonomous. |
| ジャーナル | Sci Rep |
| Abstract |
PTL-1 is the sole homolog of the MAP2/MAP4/tau family in Caenorhabditis elegans. Accumulation of tau is a pathological hallmark of neurodegenerative diseases such as Alzheimer's disease. Therefore, reducing tau levels has been suggested as a therapeutic strategy. We previously showed that PTL-1 maintains age-related structural integrity in neurons, implying that excessive reduction in the levels of a tau-like protein is detrimental. Here, we demonstrate that the regulation of neuronal ageing by PTL-1 occurs via a cell-autonomous mechanism. We re-expressed PTL-1 in a null mutant background using a pan-neuronal promoter to show that PTL-1 functions in neurons to maintain structural integrity. We next expressed PTL-1 only in touch neurons and showed rescue of the neuronal ageing phenotype of ptl-1 mutant animals in these neurons but not in another neuronal subset, the ventral nerve cord GABAergic neurons. Knockdown of PTL-1 in touch neurons also resulted in premature neuronal ageing in these neurons but not in GABAergic neurons. Additionally, expression of PTL-1 in touch neurons alone was unable to rescue the shortened lifespan observed in ptl-1 mutants, but pan-neuronal re-expression restored wild-type longevity, indicating that, at least for a specific group of mechanosensory neurons, premature neuronal ageing and organismal ageing can be decoupled. |
| 巻・号 | 4 |
| ページ | 5185 |
| 公開日 | 2014-6-5 |
| DOI | 10.1038/srep05185 |
| PII | srep05185 |
| PMID | 24898126 |
| PMC | PMC4046136 |
| MeSH | Animals Animals, Genetically Modified / genetics Animals, Genetically Modified / metabolism* Caenorhabditis elegans / cytology Caenorhabditis elegans / genetics Caenorhabditis elegans / metabolism* Caenorhabditis elegans Proteins / antagonists & inhibitors Caenorhabditis elegans Proteins / genetics Caenorhabditis elegans Proteins / metabolism* Fluorescent Antibody Technique Image Processing, Computer-Assisted Longevity / physiology* Microtubule-Associated Proteins / antagonists & inhibitors Microtubule-Associated Proteins / genetics Microtubule-Associated Proteins / metabolism* Neurons / cytology* Neurons / metabolism* RNA Interference |
| IF | 3.998 |
| 引用数 | 10 |
| 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 | 5 |
| 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 | tm543 |