Micronuclear collapse under oxidative stress drives amphisome-mediated export of DNA in Parkinson disease
H Tavares, O Gonçalves, Rita Gaspar, Margarida Beatriz, Cláudia M. Deus, Sofia Benfeito, Fernando Cagide, Fernanda Borges, Philip Seibler, Christine Klein, A. Raquel Esteves, Sandra M. Cardoso, Nuno Raimundo, Ira Milošević, Paulo S. Pinheiro, , Carla Lopes
The paper shows that oxidative stress causes micronuclear collapse in Parkinson's fibroblasts, leading to DNA export via amphisomes and pro-inflammatory EVs, which can be mitigated by a mitochondria-targeted antioxidant.
bioRxiv · Dec 2, 2025 · PreprintNeuroscience