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July 2025
Science Advances
Lamm GHU, Marin E, Alekseev A, Schellbach AV, Stetsenko A, Haro-Moreno JM, Bourenkov G, Borshchevskiy V, Asido M, Agthe M, Engilberge S, Rose SL, Caramello N, Royant A, Schneider TR, Bateman A, Mager T, Moser T, Rodriguez-Valera F, Wachtveitl J, Guskov A, Kovalev K
July 2025
Disease Models and Mechanism
van Wijk SW, Vree P, Huiskes FG, van der Palen RL, Liutkute A, Voigt N, Wallrath LL, Brundel BJJM
June 2025
Cardiovascular Research
Mason FE, Liutkute A, Voigt N
June 2025
Nucleic Acids Research
Gather F, Rauleac T, Akol I, Arumugam G, Fullio CL, Müller T, Kleidonas D, Geiss-Friedlander R, Fischer A, Vlachos A, Backofen R, Vogel T
June 2025
Science Advances
Karagulyan N, Thirumalai A, Michanski S, Qi Y, Fang Q, Wang H, Ortner NJ, Striessnig J, Strenzke N, Wichmann C, Hua Y, Moser T
June 2025
BioRxiv
Hamann TE, Wieland A, Tirincsi A, Vukusic K, Mohseni F, Wardenaar R, Losito M, Goenenc II, Wollnik B, Foijer F, Tolic IM, Storchova Z, Raschle M
June 2025
Non-coding RNA
Gisa V, Islam MR, Lbik D, Hofmann RM, Pena T, Krüger DM, Burkhardt S, Schütz AL, Sananbenesi F, Toischer K, Fischer A
June 2025
Cell Reports
Harris SS, Rajani RM, Zünkler J, Ellingford R, Yang M, Rowland JM, Schmidt A, Lee BI, Kehring M, Hellmuth M, Lam FKW, Fässler D, Erdinger S, Wolfer DP, Sala Frigerio C, Wolf F, Hyman BT, Müller UC, Busche MA
June 2025
Brain, Behavior, and Immunity
Solomon P, Budde M, Kohshour MO, Adorja K, Heilbronner M, Navarro-Flores A, Papiol S, Reich-Erkelenz D, Schulte EC, Senner F, Vogl T, Kaurani L, Krüger DM, Sananbenesi F, Pena T, Burkhardt S, Schütz AL, Anghelescu IG, Arolt V, Baune BT, Dannlowski U, Dietrich DE, Fallgatter AJ, Figge C, Juckel G, Konrad C, Lang FU, Reimer J, Reininghaus EZ, Schmauß M, Spitzer C, Wiltfang J, Zimmermann J, Fischer A, Falkai P, Schulze TG, Heilbronner U, Poschmann J
June 2025
BioRxiv
Chandran A, Agarwal A, Wang T, Amaral L, Chaves SR, Outeiro TF, Lautenschlager J

Authors

Chandran A, Agarwal A, Wang T, Amaral L, Chaves SR, Outeiro TF, Lautenschlager J

Journal

BioRxiv

Citation

bioRxiv 2025.06.06.657340.

Abstract

Alpha-synuclein is a pre-synaptic protein implicated in synucleinopathies like Parkinson’s disease and Dementia with Lewy Bodies, where it accumulates in intracellular aggregates termed Lewy bodies and Lewy neurites. Recent studies have reported that alpha-synuclein undergoes phase separation to form biomolecular condensates both in vitro and in mammalian cells. Alpha-synuclein condensates are thought to contribute to disease through progressive aggregation. Here we show that specific PD-associated alpha-synuclein variants fail to form biomolecular condensates. We demonstrate that only two alpha-synuclein variants associated with familial disease, E46K and E83Q, enhance condensate formation in vitro and in cells. However, variants including A30G, G51D, and A53E fail to form or have reduced levels of condensate formation in cells. The same phenotypes are reflected in the budding yeast model showing differential inclusion formation. In iPSC-derived neurons, the propensity of alpha-synuclein variants to undergo VAMP2-mediated phase separation reflects the level of synaptic enrichment. We show that the intrinsic propensity of alpha-synuclein to form condensates and the ability to bind lipid membranes are important to mediate condensate formation in cells. Our results emphasize that alpha-synuclein pathology follows divergent pathways, with both increased and decreased condensate formation contributing to disease. This study establishes biomolecular condensates as a key intermediate in alpha-synuclein dysfunction, providing a novel foundation for translational research.

DOI

10.1101/2025.06.06.657340

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