von Mässenhausen, A.* ; Schlecht, M.N.* ; Beer, K.* ; Maremonti, F.* ; Tonnus, W.* ; Belavgeni, A.* ; Gavali, S.* ; Flade, K.* ; Riley, J.S.* ; Zamora Gonzalez, N.* ; Brucker, A.J.* ; Becker, J.N.* ; Tmava, M.* ; Meyer, C.* ; Peitzsch, M.* ; Hugo, C.* ; Gembardt, F.* ; Angeli, J.P.F.* ; Bornstein, S.R. ; Tait, S.W.G.* ; Linkermann, A.*
Treatment with siRNAs is commonly associated with GPX4 up-regulation and target knockdown-independent sensitization to ferroptosis.
Sci. Adv. 10:eadk7329 (2024)
Small interfering RNAs (siRNAs) are widely used in biomedical research and in clinical trials. Here, we demonstrate that siRNA treatment is commonly associated with significant sensitization to ferroptosis, independently of the target protein knockdown. Genetically targeting mitochondrial antiviral-signaling protein (MAVS) reversed the siRNA-mediated sensitizing effect, but no activation of canonical MAVS signaling, which involves phosphorylation of IkBα and interferon regulatory transcription factor 3 (IRF3), was observed. In contrast, MAVS mediated a noncanonical signal resulting in a prominent increase in mitochondrial ROS levels, and increase in the BACH1/pNRF2 transcription factor ratio and GPX4 up-regulation, which was associated with a 50% decrease in intracellular glutathione levels. We conclude that siRNAs commonly sensitize to ferroptosis and may severely compromise the conclusions drawn from silencing approaches in biomedical research. Finally, as ferroptosis contributes to a variety of pathophysiological processes, we cannot exclude side effects in human siRNA-based therapeutical concepts that should be clinically tested.
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Publication type
Article: Journal article
Document type
Scientific Article
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Keywords
Clinical-pharmacology; Therapeutics; Necrosis; Pathway; Disease; Death; Risk
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Language
english
Publication Year
2024
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0
HGF-reported in Year
2024
ISSN (print) / ISBN
2375-2548
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2375-2548
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Volume: 10,
Issue: 11,
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Article Number: eadk7329
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American Association for the Advancement of Science (AAAS)
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Washington, DC [u.a.]
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Peer reviewed
Institute(s)
Institute of Pancreatic Islet Research (IPI)
POF-Topic(s)
90000 - German Center for Diabetes Research
Research field(s)
Helmholtz Diabetes Center
PSP Element(s)
G-502600-007
Grants
Cancer Research UK Programme
BMBF (FERROPath consortium)
DFG
International research training group
Heisenberg-Professorship
German Research Foundation
Copyright
Erfassungsdatum
2024-05-07