Dual regulation of dendritic morphogenesis in Drosophila by the COP9 signalosome.
Altered dendritic arborization contributes to numerous physiological processes including synaptic plasticity, behavior, learning and memory, and is one of the most consistent neuropathologic conditions found in a number of mental retardation disorders, schizophrenia, and neurodegenerative disease. C...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Public Library of Science (PLoS)
2009-01-01
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| Series: | PLoS ONE |
| Online Access: | http://europepmc.org/articles/PMC2762029?pdf=render |
| _version_ | 1828156317464788992 |
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| author | Inna Djagaeva Sergey Doronkin |
| author_facet | Inna Djagaeva Sergey Doronkin |
| author_sort | Inna Djagaeva |
| collection | DOAJ |
| description | Altered dendritic arborization contributes to numerous physiological processes including synaptic plasticity, behavior, learning and memory, and is one of the most consistent neuropathologic conditions found in a number of mental retardation disorders, schizophrenia, and neurodegenerative disease. COP9 signalosome (CSN), an evolutionarily conserved regulator of the Cullin-based ubiquitin ligases that act in the proteasome pathway, has been found associated with diverse debilitating syndromes, suggesting that CSN may be involved in regulation of dendritic arborization. However, the mechanism of this control, if it exists, is unknown. To address whether the CSN pathway plays a role in dendrites, we used a simple and genetically tractable model, Drosophila larval peripheral nervous system. Our model study identified the COP9 signalosome as the key and multilayer regulator of dendritic arborization. CSN is responsible for shaping the entire dendritic tree through both stimulating and then repressing dendritic branching. We identified that CSN exerts its dualistic function via control of different Cullins. In particular, CSN stimulates dendritic branching through Cullin1, and inhibits it via control of Cullin3 function. We also identified that Cullin1 acts in neurons with the substrate-specific F-box protein Slimb to target the Cubitus interruptus protein for degradation. |
| first_indexed | 2024-04-11T23:08:52Z |
| format | Article |
| id | doaj.art-9b7fb5bf8b9a4ac089e9b53de0f865cc |
| institution | Directory Open Access Journal |
| issn | 1932-6203 |
| language | English |
| last_indexed | 2024-04-11T23:08:52Z |
| publishDate | 2009-01-01 |
| publisher | Public Library of Science (PLoS) |
| record_format | Article |
| series | PLoS ONE |
| spelling | doaj.art-9b7fb5bf8b9a4ac089e9b53de0f865cc2022-12-22T03:57:55ZengPublic Library of Science (PLoS)PLoS ONE1932-62032009-01-01410e757710.1371/journal.pone.0007577Dual regulation of dendritic morphogenesis in Drosophila by the COP9 signalosome.Inna DjagaevaSergey DoronkinAltered dendritic arborization contributes to numerous physiological processes including synaptic plasticity, behavior, learning and memory, and is one of the most consistent neuropathologic conditions found in a number of mental retardation disorders, schizophrenia, and neurodegenerative disease. COP9 signalosome (CSN), an evolutionarily conserved regulator of the Cullin-based ubiquitin ligases that act in the proteasome pathway, has been found associated with diverse debilitating syndromes, suggesting that CSN may be involved in regulation of dendritic arborization. However, the mechanism of this control, if it exists, is unknown. To address whether the CSN pathway plays a role in dendrites, we used a simple and genetically tractable model, Drosophila larval peripheral nervous system. Our model study identified the COP9 signalosome as the key and multilayer regulator of dendritic arborization. CSN is responsible for shaping the entire dendritic tree through both stimulating and then repressing dendritic branching. We identified that CSN exerts its dualistic function via control of different Cullins. In particular, CSN stimulates dendritic branching through Cullin1, and inhibits it via control of Cullin3 function. We also identified that Cullin1 acts in neurons with the substrate-specific F-box protein Slimb to target the Cubitus interruptus protein for degradation.http://europepmc.org/articles/PMC2762029?pdf=render |
| spellingShingle | Inna Djagaeva Sergey Doronkin Dual regulation of dendritic morphogenesis in Drosophila by the COP9 signalosome. PLoS ONE |
| title | Dual regulation of dendritic morphogenesis in Drosophila by the COP9 signalosome. |
| title_full | Dual regulation of dendritic morphogenesis in Drosophila by the COP9 signalosome. |
| title_fullStr | Dual regulation of dendritic morphogenesis in Drosophila by the COP9 signalosome. |
| title_full_unstemmed | Dual regulation of dendritic morphogenesis in Drosophila by the COP9 signalosome. |
| title_short | Dual regulation of dendritic morphogenesis in Drosophila by the COP9 signalosome. |
| title_sort | dual regulation of dendritic morphogenesis in drosophila by the cop9 signalosome |
| url | http://europepmc.org/articles/PMC2762029?pdf=render |
| work_keys_str_mv | AT innadjagaeva dualregulationofdendriticmorphogenesisindrosophilabythecop9signalosome AT sergeydoronkin dualregulationofdendriticmorphogenesisindrosophilabythecop9signalosome |