Amb motiu del tancament d'estiu, la validació de documents es reprendrà a partir del 28 d'agost de 2026. Disculpeu les molèsties.
Con motivo del cierre de verano, la validación de documentos se reanudará a partir del 28 de agosto de 2026. Disculpad las molestias
Due to the summer closure, document validation will resume starting August 28, 2026. We apologize for any inconvenience.

Tipus de document

Article

Versió

Versió publicada

Data de publicació

Llicència de publicació

cc-by (c)  Chakraborty, R. et al., 2026
Si us plau utilitzeu sempre aquest identificador per citar o enllaçar aquest document: https://hdl.handle.net/2445/230387

Impaired α-Synuclein aggregate clearance in neuronal cells drive their spread to microglia through tunneling nanotubes

Títol de la revista

Director/Tutor

ISSN de la revista

Títol del volum

Resum

Tunneling nanotubes (TNTs) play a crucial role in intercellular communication, enabling transfer of molecular cargoes over long distances between connected cells. Previous studies have demonstrated efficient, directional transfer of α-Synuclein (α-Syn) aggregates from neurons to microglia, with endosomal trafficking and lysosomal processing identified as the primary events following α-Syn internalization. Using human neuronal and microglial cell lines, we show that microglia exhibit higher lysosomal turnover, particularly through lysophagy, whereas neuronal lysosomes display compromised degradative capacity and impaired autophagic flux upon α-Syn exposure, resulting in compromised aggregate clearance. Such a response to α-Syn aggregates is also conserved in human iPSC-derived neurons and microglia. Moreover, perturbing aggregate clearance via autophagy inhibition enhances TNT-mediated transfer of α-Syn from neuronal cells to microglia. Microglia co-cultured with α-Syn-containing neurons upregulate autophagy flux, enabling efficient degradation of the transferred aggregates. These results highlight dysfunctional autophagy in neurons as a key driver outsourcing α-Syn aggregates to microglia.

Matèries (anglès)

Citació

Citació

CHAKRABORTY, Ranabir, et al. Impaired α-Synuclein aggregate clearance in neuronal cells drive their spread to microglia through tunneling nanotubes. Nature Communications. 2026. Vol. 17. ISSN 2041-1723. [consulted: 27 of August of 2026]. Available at: https://hdl.handle.net/2445/230387

Exportar metadades

JSON - METS

Compartir registre