{"doi":"10.1186/1749-8104-6-38","title":"Microtubules are organized independently of the centrosome in Drosophilaneurons","abstract":"<jats:title>Abstract</jats:title>\n          <jats:sec>\n            <jats:title>Background</jats:title>\n            <jats:p>The best-studied arrangement of microtubules is that organized by the centrosome, a cloud of microtubule nucleating and anchoring proteins is clustered around centrioles. However, noncentrosomal microtubule arrays are common in many differentiated cells, including neurons. Although microtubules are not anchored at neuronal centrosomes, it remains unclear whether the centrosome plays a role in organizing neuronal microtubules. We use <jats:italic>Drosophila</jats:italic> as a model system to determine whether centrosomal microtubule nucleation is important in mature neurons.</jats:p>\n          </jats:sec>\n          <jats:sec>\n            <jats:title>Results</jats:title>\n            <jats:p>In developing and mature neurons, centrioles were not surrounded by the core nucleation protein γ-tubulin. This suggests that the centrioles do not organize functional centrosomes in <jats:italic>Drosophila</jats:italic> neurons <jats:italic>in vivo</jats:italic>. Consistent with this idea, centriole position was not correlated with a specific region of the cell body in neurons, and growing microtubules did not cluster around the centriole, even after axon severing when the number of growing plus ends is dramatically increased. To determine whether the centrosome was required for microtubule organization in mature neurons, we used two approaches. First, we used <jats:italic>DSas-4</jats:italic> centriole duplication mutants. In these mutants, centrioles were present in many larval sensory neurons, but they were not fully functional. Despite reduced centriole function, microtubule orientation was normal in axons and dendrites. Second, we used laser ablation to eliminate the centriole, and again found that microtubule polarity in axons and dendrites was normal, even 3 days after treatment.</jats:p>\n          </jats:sec>\n          <jats:sec>\n            <jats:title>Conclusion</jats:title>\n            <jats:p>We conclude that the centrosome is not a major site of microtubule nucleation in <jats:italic>Drosophila</jats:italic> neurons, and is not required for maintenance of neuronal microtubule organization in these cells.</jats:p>\n          </jats:sec>","journal":"Neural Development","year":2011,"id":43023,"datarank":3.258021060809463,"base_score":4.543294782270004,"endowment":4.543294782270004,"self_citation_contribution":0.6814942173405006,"citation_network_contribution":2.5765268434689625,"self_endowment_contribution":0.6814942173405006,"citer_contribution":2.5765268434689625,"corpus_percentile":null,"corpus_rank":null,"citation_count":93,"citer_count":84,"citers_with_citation_signal":72,"citers_with_endowment":72,"datacite_reuse_total":0,"is_dataset":false,"is_dataset_confidence":null,"is_oa":false,"file_count":0,"downloads":0,"has_version_chain":false,"published_date":null,"fair_score":55.0,"fair_percentile":80.29903254177661,"algorithm_id":"datarank_citation_only_1hop_v6","ranking_scope":"data_only","authors":[{"id":205049,"name":"Michelle C Stone","orcid":null,"position":1,"is_corresponding":false},{"id":205050,"name":"Melissa M Rolls","orcid":null,"position":2,"is_corresponding":false},{"id":205048,"name":"Michelle M Nguyen","orcid":null,"position":0,"is_corresponding":false}],"reference_count":0,"raw_metadata":{"has_enrichment":true,"base_score":4.543294782270004,"endowment":4.543294782270004,"datacite_reuse_total":0,"file_count":0,"downloads":0,"views":0,"has_version_chain":false,"is_dataset":false,"is_oa":false,"pmid":"22145670","pmcid":"PMC3271965","openalex_id":"https://openalex.org/W2061552604","authors":[],"funders":[{"funder_name":"NIGMS NIH HHS","grant_id":"R01 GM085115","title":null},{"funder_name":"National Institutes of Health","grant_id":"5R01GM085115-04","title":"Using Drosophila Neurons to Identify Mechanisms that Control Microtubule Polarity"}],"total_grants":2,"fwci":2.0551,"citation_percentile":0.85483123,"influential_citations":3,"citation_trend":[{"year":2012,"count":3},{"year":2013,"count":6},{"year":2014,"count":6},{"year":2015,"count":3},{"year":2016,"count":10},{"year":2017,"count":7},{"year":2018,"count":3},{"year":2019,"count":11},{"year":2020,"count":13},{"year":2021,"count":12},{"year":2022,"count":3},{"year":2023,"count":3},{"year":2024,"count":4},{"year":2025,"count":8},{"year":2026,"count":1}],"oa_status":"gold","license":"cc-by","oa_locations":[{"url":"https://neuraldevelopment.biomedcentral.com/counter/pdf/10.1186/1749-8104-6-38","host_type":"journal"},{"url":"https://neuraldevelopment.biomedcentral.com/counter/pdf/10.1186/1749-8104-6-38","host_type":"GOLD"},{"url":"https://neuraldevelopment.biomedcentral.com/counter/pdf/10.1186/1749-8104-6-38","host_type":"publisher"},{"url":"https://link.springer.com/content/pdf/10.1186/1749-8104-6-38.pdf","host_type":"publisher"},{"url":"https://doi.org/10.1186/1749-8104-6-38","host_type":"journal"},{"url":"https://pubmed.ncbi.nlm.nih.gov/22145670","host_type":"repository"},{"url":"https://doaj.org/article/9144d808b8c247b9a811152ffab7ca36","host_type":"repository"},{"url":"https://www.ncbi.nlm.nih.gov/pmc/articles/3271965","host_type":"repository"},{"url":"https://europepmc.org/articles/PMC3271965","host_type":"Europe_PMC"},{"url":"https://europepmc.org/articles/PMC3271965?pdf=render","host_type":"Europe_PMC"},{"url":"https://neuraldevelopment.biomedcentral.com/track/pdf/10.1186/1749-8104-6-38","host_type":""},{"url":"http://dx.doi.org/10.1186/1749-8104-6-38","host_type":""},{"url":"https://dx.doi.org/10.1186/1749-8104-6-38","host_type":""}],"fields_of_study":["Microtubule and mitosis dynamics","Hedgehog Signaling Pathway Studies","Nuclear Structure and Function","Biology","Medicine","0301 basic medicine","0303 health sciences","03 medical and health sciences","Animals","Axons","Centrosome","Dendrites","Drosophila","Microtubules","Sensory Receptor Cells","Spindle Apparatus"],"mesh_terms":["Animals","Axons","Dendrites","Drosophila","Microtubules","Spindle Apparatus","Sensory Receptor Cells","Centrosome"],"keywords":["Centrosome","Centriole","Microtubule","Cell biology","Microtubule nucleation","Biology","Basal body","Microtubule organizing center","Astral microtubules","Cilium","Centrosome cycle","Flagellum","Genetics","Cell","Cell cycle","Sensory Receptor Cells","Dendrites","Spindle Apparatus","Microtubules","Axons","Developmental Neuroscience","Animals","Drosophila","Neurology. 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