First-in-class ultralong-target-residence-time p38α inhibitors as a mitosis-targeted therapy for colorectal cancer.
Ramona Rudalska, Jule Harbig, Michael Forster, Pascal Woelffing, Aylin Esposito, Mark Kudolo, Adelina Botezatu, Vanessa Haller, Nicole Janssen, Samuel Holzmayer, Philipp Nahidino, Omelyan Trompak, Tatu Pantsar, Thales Kronenberger, Can Yurttas, Elke Rist, Alexander N R Weber, Marc H Dahlke, German Ott, Alfred Koenigsrainer, Ulrich Rothbauer, Melanie Maerklin, Thomas Muerdter, Matthias Schwab, Stephan Singer, Lars Zender, Stefan Laufer, Daniel Dauch
Author Information
Ramona Rudalska: Department of Medical Oncology and Pneumology, University Hospital Tübingen, Tübingen, Germany. ORCID
Jule Harbig: Department of Medical Oncology and Pneumology, University Hospital Tübingen, Tübingen, Germany.
Michael Forster: IFIT Cluster of Excellence EXC 2180 'Image-Guided and Functionally Instructed Tumor Therapies', University of Tübingen, Tübingen, Germany. ORCID
Pascal Woelffing: Department of Medical Oncology and Pneumology, University Hospital Tübingen, Tübingen, Germany.
Aylin Esposito: Department of Medical Oncology and Pneumology, University Hospital Tübingen, Tübingen, Germany.
Mark Kudolo: IFIT Cluster of Excellence EXC 2180 'Image-Guided and Functionally Instructed Tumor Therapies', University of Tübingen, Tübingen, Germany.
Adelina Botezatu: Department of Medical Oncology and Pneumology, University Hospital Tübingen, Tübingen, Germany.
Vanessa Haller: IFIT Cluster of Excellence EXC 2180 'Image-Guided and Functionally Instructed Tumor Therapies', University of Tübingen, Tübingen, Germany.
Nicole Janssen: Dr. Margarete Fischer-Bosch Institute of Clinical Pharmacology, Stuttgart and University of Tübingen, Tübingen, Germany.
Samuel Holzmayer: IFIT Cluster of Excellence EXC 2180 'Image-Guided and Functionally Instructed Tumor Therapies', University of Tübingen, Tübingen, Germany. ORCID
Philipp Nahidino: IFIT Cluster of Excellence EXC 2180 'Image-Guided and Functionally Instructed Tumor Therapies', University of Tübingen, Tübingen, Germany.
Omelyan Trompak: Department of Medical Oncology and Pneumology, University Hospital Tübingen, Tübingen, Germany.
Tatu Pantsar: IFIT Cluster of Excellence EXC 2180 'Image-Guided and Functionally Instructed Tumor Therapies', University of Tübingen, Tübingen, Germany. ORCID
Thales Kronenberger: Department of Medical Oncology and Pneumology, University Hospital Tübingen, Tübingen, Germany. ORCID
Can Yurttas: Department of General, Visceral and Transplant Surgery, University Hospital Tübingen, Tübingen, Germany.
Elke Rist: Department of Medical Oncology and Pneumology, University Hospital Tübingen, Tübingen, Germany.
Alexander N R Weber: IFIT Cluster of Excellence EXC 2180 'Image-Guided and Functionally Instructed Tumor Therapies', University of Tübingen, Tübingen, Germany. ORCID
Marc H Dahlke: Department of General and Visceral Surgery, Robert Bosch Hospital, Stuttgart, Germany.
German Ott: Department of Clinical Pathology, Robert Bosch Hospital, Stuttgart, Germany.
Alfred Koenigsrainer: Department of Medical Oncology and Pneumology, University Hospital Tübingen, Tübingen, Germany.
Ulrich Rothbauer: IFIT Cluster of Excellence EXC 2180 'Image-Guided and Functionally Instructed Tumor Therapies', University of Tübingen, Tübingen, Germany.
Melanie Maerklin: IFIT Cluster of Excellence EXC 2180 'Image-Guided and Functionally Instructed Tumor Therapies', University of Tübingen, Tübingen, Germany. ORCID
Thomas Muerdter: Dr. Margarete Fischer-Bosch Institute of Clinical Pharmacology, Stuttgart and University of Tübingen, Tübingen, Germany.
Matthias Schwab: IFIT Cluster of Excellence EXC 2180 'Image-Guided and Functionally Instructed Tumor Therapies', University of Tübingen, Tübingen, Germany. ORCID
Stephan Singer: IFIT Cluster of Excellence EXC 2180 'Image-Guided and Functionally Instructed Tumor Therapies', University of Tübingen, Tübingen, Germany.
Lars Zender: Department of Medical Oncology and Pneumology, University Hospital Tübingen, Tübingen, Germany. ORCID
Stefan Laufer: IFIT Cluster of Excellence EXC 2180 'Image-Guided and Functionally Instructed Tumor Therapies', University of Tübingen, Tübingen, Germany.
Daniel Dauch: Department of Medical Oncology and Pneumology, University Hospital Tübingen, Tübingen, Germany. daniel.dauch@med.uni-tuebingen.de. ORCID
Colorectal cancer (CRC) constitutes the second leading cause of cancer-related death worldwide and advanced CRCs are resistant to targeted therapies, chemotherapies and immunotherapies. p38α (Mapk14) has been suggested as a therapeutic target in CRC; however, available p38α inhibitors only allow for insufficient target inhibition. Here we describe a unique class of p38α inhibitors with ultralong target residence times (designated ULTR-p38i) that robustly inhibit p38α downstream signaling and induce distinct biological phenotypes. ULTR-p38i monotherapy triggers an uncontrolled mitotic entry by activating Cdc25 and simultaneously blocking Wee1. Consequently, CRC cells undergo mitotic catastrophe, resulting in apoptosis or senescence. ULTR-p38i exhibit high selectivity, good pharmaco-kinetic properties and no measurable toxicity with strong therapeutic effects in patient-derived CRC organoids and syngeneic CRC mouse models. Conceptually, our study suggests ultralong-target-residence-time kinase inhibitors as an alternative to covalent inhibitors, which, because of the lack of cysteine residues, cannot be generated for many kinase cancer targets.
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