0605329 - ÚOCHB 2026 RIV FR eng J - Článek v odborném periodiku
Sedláček, Jindřich - Šmahelová, Zuzana - Adámek, Michael - Šubová, Dominika - Svobodová, Lucie - Kadlecová, A. - Majer, Pavel - Machara, Aleš - Grantz Šašková, Klára
Small-molecule activators of NRF1 transcriptional activity prevent protein aggregation.
Biomedicine & Pharmacotherapy. Roč. 183, February (2025), č. článku 117864. ISSN 0753-3322. E-ISSN 1950-6007
Grant CEP: GA ČR(CZ) GA22-16389S; GA MŠMT(CZ) LX22NPO5103
Institucionální podpora: RVO:61388963
Klíčová slova: proteasome * NRF1 (NFE2L1) * DDI2 * NGLY1 * protein aggregates * small molecules * neurodegenerative diseases
Obor OECD: Organic chemistry
Impakt faktor: 6.9, rok: 2023 ; AIS: 1.141, rok: 2023
Způsob publikování: Open access
Web výsledku:
https://doi.org/10.1016/j.biopha.2025.117864DOI: https://doi.org/10.1016/j.biopha.2025.117864

Intracellular protein aggregation causes proteotoxic stress, underlying highly debilitating neurodegenerative disorders in parallel with decreased proteasome activity. Nevertheless, under such stress conditions, the expression of proteasome subunits is upregulated by Nuclear Factor Erythroid 2-related factor 1 (NRF1), a transcription factor that is encoded by NFE2L1. Activating the NRF1 pathway could accordingly delay the onset of neurodegenerative and other disorders with impaired cell proteostasis. Here, we present a series of small-molecule compounds based on bis(phenylmethylen)cycloalkanones and their heterocyclic analogues, identified via targeted library screening, that can induce NRF1-dependent downstream events, such as proteasome synthesis, heat shock response, and autophagy, in both model cell lines and Caenorhabditis elegans strains. These compounds increase proteasome activity and decrease the size and number of protein aggregates without causing any cellular stress or inhibiting the ubiquitin-proteasome system (UPS). Therefore, our compounds represent a new promising therapeutic approach for various protein conformational diseases, including the most debilitating neurodegenerative diseases.
Trvalý link: https://hdl.handle.net/11104/0363012