{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,30]],"date-time":"2026-07-30T14:23:37Z","timestamp":1785421417956,"version":"3.56.0"},"reference-count":19,"publisher":"National Academy of Sciences","issue":"24","license":[{"start":{"date-parts":[[2026,6,8]],"date-time":"2026-06-08T00:00:00Z","timestamp":1780876800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["www.pnas.org"],"crossmark-restriction":true},"short-container-title":["Proc. Natl. Acad. Sci. U.S.A."],"published-print":{"date-parts":[[2026,6,16]]},"abstract":"<jats:p>\u03b1-synuclein (\u03b1-syn) aggregation is a hallmark of synucleinopathies, a class of neurodegenerative disorders such as Parkinson\u2019s disease (PD). Several lines of evidence indicate the involvement of mitochondria in the disease pathology. Despite extensive study, the link between \u03b1-syn aggregation and mechanisms of mitochondrial toxicity remains not fully understood. Using high-resolution imaging with electron microscopy, we examined SH-SY5Y cells exposed to \u03b1-syn fibrils vs control cells with a focus on mitochondria. We found that upon exposure to \u03b1-syn fibrils, mitochondria cristae structure gets defects, and mitochondria enhance the budding of mitochondrial-derived vesicles (MDVs). MDV formation reflects an evolutionarily conserved mechanism reminiscent of bacterial outer membrane vesicle biogenesis. Structural proteomics analysis by mass spectrometry corroborates this microscopy observation by identifying changes in multiple proteins that regulate cristae structure, MDV formation, and trafficking. Our results suggest that \u03b1-syn may promote MDV generation, and support an important link between \u03b1-syn and mitochondria which will be important for future mechanistic studies. The processes we detected could be of interest for diagnostics and potential therapeutic interventions.<\/jats:p>","DOI":"10.1073\/pnas.2604082123","type":"journal-article","created":{"date-parts":[[2026,6,8]],"date-time":"2026-06-08T19:08:11Z","timestamp":1780945691000},"update-policy":"https:\/\/doi.org\/10.1073\/pnas.cm10313","source":"Crossref","is-referenced-by-count":0,"title":["Alpha-synuclein fibrils induce budding of mitochondrial-derived vesicles"],"prefix":"10.1073","volume":"123","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-9148-0200","authenticated-orcid":false,"given":"Thomas","family":"Braun","sequence":"first","affiliation":[{"id":[{"id":"https:\/\/ror.org\/02s6k3f65","id-type":"ROR","asserted-by":"publisher"}],"name":"Biozentrum, University of Basel","place":["Basel, Switzerland"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7653-6918","authenticated-orcid":false,"given":"Viviane","family":"Reber","sequence":"additional","affiliation":[{"name":"Department of Biology, Institute of Molecular Systems Biology, Swiss Federal Institute of Technology Z\u00fcrich","place":["Z\u00fcrich, Switzerland"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Cinzia","family":"Tiberi","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/02s6k3f65","id-type":"ROR","asserted-by":"publisher"}],"name":"BioEM Lab, Biozentrum, University of Basel","place":["Basel, Switzerland"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Andri","family":"Fr\u00e4nkl","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/02s6k3f65","id-type":"ROR","asserted-by":"publisher"}],"name":"Biozentrum, University of Basel","place":["Basel, Switzerland"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Dhiman","family":"Ghosh","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/01m0th787","id-type":"ROR","asserted-by":"publisher"}],"name":"Department of Chemistry and Applied Biosciences, Institute of Molecular Physical Science, Swiss Federal Institute of Technology Z\u00fcrich","place":["Z\u00fcrich, Switzerland"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6333-066X","authenticated-orcid":false,"given":"Roland","family":"Riek","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/01m0th787","id-type":"ROR","asserted-by":"publisher"}],"name":"Department of Chemistry and Applied Biosciences, Institute of Molecular Physical Science, Swiss Federal Institute of Technology Z\u00fcrich","place":["Z\u00fcrich, Switzerland"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3706-5911","authenticated-orcid":false,"given":"Tetiana","family":"Serdiuk","sequence":"additional","affiliation":[{"name":"Department of Biology, Institute of Molecular Systems Biology, Swiss Federal Institute of Technology Z\u00fcrich","place":["Z\u00fcrich, Switzerland"]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"341","published-online":{"date-parts":[[2026,6,8]]},"reference":[{"key":"e_1_3_3_1_2","doi-asserted-by":"publisher","DOI":"10.1126\/science.aam9080"},{"key":"e_1_3_3_2_2","doi-asserted-by":"publisher","DOI":"10.3389\/fnins.2018.00388"},{"key":"e_1_3_3_3_2","doi-asserted-by":"publisher","DOI":"10.1002\/mdc3.13344"},{"key":"e_1_3_3_4_2","doi-asserted-by":"publisher","DOI":"10.1097\/00001756-200001170-00041"},{"key":"e_1_3_3_5_2","doi-asserted-by":"publisher","DOI":"10.1038\/s41531-023-00561-6"},{"key":"e_1_3_3_6_2","doi-asserted-by":"publisher","DOI":"10.1038\/s41593-019-0423-2"},{"key":"e_1_3_3_7_2","doi-asserted-by":"publisher","DOI":"10.3389\/fnmol.2022.947191"},{"key":"e_1_3_3_8_2","doi-asserted-by":"publisher","DOI":"10.1523\/JNEUROSCI.1659-16.2016"},{"key":"e_1_3_3_9_2","doi-asserted-by":"publisher","DOI":"10.1038\/s41467-018-04422-2"},{"key":"e_1_3_3_10_2","doi-asserted-by":"publisher","DOI":"10.1038\/s41419-019-2092-1"},{"key":"e_1_3_3_11_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.cell.2020.12.021"},{"key":"e_1_3_3_12_2","doi-asserted-by":"publisher","DOI":"10.15252\/embj.2019102539"},{"key":"e_1_3_3_13_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.cmet.2023.11.014"},{"key":"e_1_3_3_14_2","doi-asserted-by":"publisher","DOI":"10.15252\/embj.201488104"},{"key":"e_1_3_3_15_2","doi-asserted-by":"publisher","DOI":"10.1038\/s41467-025-62895-4"},{"key":"e_1_3_3_16_2","doi-asserted-by":"publisher","DOI":"10.1126\/sciadv.abe5085"},{"key":"e_1_3_3_17_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.cophys.2024.100765"},{"key":"e_1_3_3_18_2","doi-asserted-by":"publisher","DOI":"10.1038\/s41467-024-54212-2"},{"key":"e_1_3_3_19_2","doi-asserted-by":"crossref","unstructured":"T. Braun Alpha-synuclein fibrils induce budding of mitochondrial-derived vesicles. PRIDE. https:\/\/www.ebi.ac.uk\/pride\/archive\/projects\/PXD078690. 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