TY - JOUR U1 - Wissenschaftlicher Artikel A1 - Kyriazi, Despoina A1 - Voth, Lea A1 - Bader, Almke A1 - Ewert, Wiebke A1 - Gerlach, Juliane A1 - Elfrink, Kerstin A1 - Franz, Peter A1 - Tsap, Mariana I. A1 - Schirmer, Bastian A1 - Damiano-Guercio, Julia A1 - Hartmann, Falk K. A1 - Plenge, Masina A1 - Salari, Azam A1 - Schöttelndreier, Dennis A1 - Strienke, Katharina A1 - Bresch, Nadine A1 - Salinas, Claudio A1 - Gutzeit, Herwig O. A1 - Schaumann, Nora A1 - Hussein, Kais A1 - Bähre, Heike A1 - Brüsch, Inga A1 - Claus, Peter A1 - Neumann, Detlef A1 - Taft, Manuel H. A1 - Shcherbata, Halyna R. A1 - Ngezahayo, Anaclet A1 - Bähler, Martin A1 - Amiri, Mahdi A1 - Knölker, Hans-Joachim A1 - Preller, Matthias A1 - Tsiavaliaris, Georgios T1 - An allosteric inhibitor of RhoGAP class-IX myosins suppresses the metastatic features of cancer cells JF - Nature Communications N2 - Aberrant Ras homologous (Rho) GTPase signalling is a major driver of cancer metastasis, and GTPase-activating proteins (GAPs), the negative regulators of RhoGTPases, are considered promising targets for suppressing metastasis, yet drug discovery efforts have remained elusive. Here, we report the identification and characterization of adhibin, a synthetic allosteric inhibitor of RhoGAP class-IX myosins that abrogates ATPase and motor function, suppressing RhoGTPase-mediated modes of cancer cell metastasis. In human and murine adenocarcinoma and melanoma cell models, including three-dimensional spheroid cultures, we reveal anti-migratory and anti-adhesive properties of adhibin that originate from local disturbances in RhoA/ROCK-regulated signalling, affecting actin-dynamics and actomyosin-based cell-contractility. Adhibin blocks membrane protrusion formation, disturbs remodelling of cell-matrix adhesions, affects contractile ring formation, and disrupts epithelial junction stability; processes severely impairing single/collective cell migration and cytokinesis. Combined with the non-toxic, non-pathological signatures of adhibin validated in organoids, mouse and Drosophila models, this mechanism of action provides the basis for developing anti-metastatic cancer therapies. Y1 - 2024 UN - https://nbn-resolving.org/urn:nbn:de:hbz:1044-opus-87388 SN - 2041-1723 SS - 2041-1723 U6 - https://doi.org/10.1038/s41467-024-54181-6 DO - https://doi.org/10.1038/s41467-024-54181-6 PM - 39550360 VL - 15 SP - 25 S1 - 25 PB - Springer Nature ER -