Hartleben, G. ; Schorpp, K.K. ; Kwon, Y. ; Betz, B. ; Tsokanos, F.-F. ; Dantes, Z.* ; Schäfer, A.* ; Rothenaigner, I. ; Monroy Kuhn, J.M. ; Morigny, P. ; Mehr, L. ; Lin, S. ; Seitz, S. ; Tokarz, J. ; Artati, A. ; Adamski, J. ; Plettenburg, O. ; Lutter, D. ; Irmler, M. ; Beckers, J. ; Reichert, M.* ; Hadian, K. ; Zeigerer, A. ; Herzig, S. ; Berriel Diaz, M.
Combination therapies induce cancer cell death through the integrated stress response and disturbed pyrimidine metabolism.
EMBO Mol. Med.:e12461 (2021)
By accentuating drug efficacy and impeding resistance mechanisms, combinatorial, multi-agent therapies have emerged as key approaches in the treatment of complex diseases, most notably cancer. Using high-throughput drug screens, we uncovered distinct metabolic vulnerabilities and thereby identified drug combinations synergistically causing a starvation-like lethal catabolic response in tumor cells from different cancer entities. Domperidone, a dopamine receptor antagonist, as well as several tricyclic antidepressants (TCAs), including imipramine, induced cancer cell death in combination with the mitochondrial uncoupler niclosamide ethanolamine (NEN) through activation of the integrated stress response pathway and the catabolic CLEAR network. Using transcriptome and metabolome analyses, we characterized a combinatorial response, mainly driven by the transcription factors CHOP and TFE3, which resulted in cell death through enhanced pyrimidine catabolism as well as reduced pyrimidine synthesis. Remarkably, the drug combinations sensitized human organoid cultures to the standard-of-care chemotherapy paclitaxel. Thus, our combinatorial approach could be clinically implemented into established treatment regimen, which would be further facilitated by the advantages of drug repurposing.
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Publication type
Article: Journal article
Document type
Scientific Article
Thesis type
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Keywords
Cancer Metabolism ; Integrated Stress Response ; Metabolic Vulnerabilities ; Pyrimidine Metabolism ; Tricyclic Antidepressants
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Language
english
Publication Year
2021
Prepublished in Year
HGF-reported in Year
2021
ISSN (print) / ISBN
1757-4676
e-ISSN
1757-4684
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Article Number: e12461
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Wiley
Publishing Place
Chichester
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0000-00-00
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0000-00-00
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0000-00-00
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Reviewing status
Peer reviewed
POF-Topic(s)
90000 - German Center for Diabetes Research
30203 - Molecular Targets and Therapies
30201 - Metabolic Health
30505 - New Technologies for Biomedical Discoveries
Research field(s)
Helmholtz Diabetes Center
Enabling and Novel Technologies
Genetics and Epidemiology
PSP Element(s)
G-501900-253
G-501900-251
G-505293-001
G-501900-254
G-502500-001
G-502297-001
G-505600-003
G-506300-001
G-502200-001
G-500600-004
A-630710-001
Grants
Helmholtz Alliance "Aging and Metabolic Programming, AMPro"
German Research Foundation
Copyright
Erfassungsdatum
2021-03-15