The kinase domain of TRPM7 interacts with PAK1 and regulates pancreatic cancer cell epithelial-to-mesenchymal transition

Abstract Pancreatic ductal adenocarcinoma (PDAC) is the main and the deadliest form of pancreatic cancer. This is a major problem of public health since it will become the second leading cause of death by cancer in the next few years, mainly due to the lack of efficient therapies. Transient Receptor...

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Main Authors: Julie Auwercx, Bernadette Neve, Alison Vanlaeys, Mathilde Fourgeaud, Ingrid Bourrin-Reynard, Mouloud Souidi, Sylvie Brassart-Pasco, Frédéric Hague, Stéphanie Guenin, Belinda Duchene, Laurent Gutierrez, Olivier Destaing, Isabelle Dhennin-Duthille, Isabelle Van Seuningen, Nicolas Jonckheere, Mathieu Gautier
Format: Article
Language:English
Published: Nature Publishing Group 2025-04-01
Series:Cell Death and Disease
Online Access:https://doi.org/10.1038/s41419-025-07665-2
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author Julie Auwercx
Bernadette Neve
Alison Vanlaeys
Mathilde Fourgeaud
Ingrid Bourrin-Reynard
Mouloud Souidi
Sylvie Brassart-Pasco
Frédéric Hague
Stéphanie Guenin
Belinda Duchene
Laurent Gutierrez
Olivier Destaing
Isabelle Dhennin-Duthille
Isabelle Van Seuningen
Nicolas Jonckheere
Mathieu Gautier
author_facet Julie Auwercx
Bernadette Neve
Alison Vanlaeys
Mathilde Fourgeaud
Ingrid Bourrin-Reynard
Mouloud Souidi
Sylvie Brassart-Pasco
Frédéric Hague
Stéphanie Guenin
Belinda Duchene
Laurent Gutierrez
Olivier Destaing
Isabelle Dhennin-Duthille
Isabelle Van Seuningen
Nicolas Jonckheere
Mathieu Gautier
author_sort Julie Auwercx
collection DOAJ
description Abstract Pancreatic ductal adenocarcinoma (PDAC) is the main and the deadliest form of pancreatic cancer. This is a major problem of public health since it will become the second leading cause of death by cancer in the next few years, mainly due to the lack of efficient therapies. Transient Receptor Potential Cation Channel Subfamily M Member 7 (TRPM7) protein, a cation channel fused with a serine/threonine kinase domain is overexpressed in PDAC and associated with a low survival. In this work, we aim to study the role of kinase domain on pancreatic cell fates by using a model of kinase domain deletion by CRISPR-Cas9. PANC-1 and MIA PaCa-2 PDAC cell lines were used and kinase domain was deleted by CRISPR-Cas9 strategy. Kinase domain deletion (ΔK) was validated by RT-qPCR and western blots. The effect of kinase domain deletion on channel function was studied by patch-clamp and Mn2+-quenching. The cell phenotype was studied by MTT and cell migration/invasion assays. Finally, the role of kinase domain was studied in vivo in xenografted mice. Here we show that TRPM7 kinase domain is required to maintain a mesenchymal phenotype in PDAC cells. We also demonstrated that TRPM7 and PAK1 interact in the same protein complexes. Moreover, TRPM7 kinase domain is required for carcinogenesis and cancer cell dissemination in vivo. Intriguingly, the role of TRPM7 kinase is cell specific and may depend on the KRAS oncogene mutation status. In conclusion, TRPM7 kinase domain is required to maintain a mesenchymal and aggressive phenotype in PDAC cells, and it could be a promising target against PDAC.
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spelling doaj-art-ac09a722e3fe4d29983f212d61c41f6d2025-08-20T02:30:19ZengNature Publishing GroupCell Death and Disease2041-48892025-04-0116111310.1038/s41419-025-07665-2The kinase domain of TRPM7 interacts with PAK1 and regulates pancreatic cancer cell epithelial-to-mesenchymal transitionJulie Auwercx0Bernadette Neve1Alison Vanlaeys2Mathilde Fourgeaud3Ingrid Bourrin-Reynard4Mouloud Souidi5Sylvie Brassart-Pasco6Frédéric Hague7Stéphanie Guenin8Belinda Duchene9Laurent Gutierrez10Olivier Destaing11Isabelle Dhennin-Duthille12Isabelle Van Seuningen13Nicolas Jonckheere14Mathieu Gautier15Université de Picardie Jules Verne, UR-UPJV 4667Univ. Lille, CNRS, Inserm, CHU Lille, UMR9020-U1277—CANTHER—Cancer Heterogeneity Plasticity and Resistance to TherapiesUniversité de Picardie Jules Verne, UR-UPJV 4667Université de Picardie Jules Verne, UR-UPJV 4667Institute for Advanced Biosciences, University Grenoble Alpes, INSERM U1209, CNRS UMR5309, site santé, Allée des AlpesUniv. Lille, CNRS, Inserm, CHU Lille, UMR9020-U1277—CANTHER—Cancer Heterogeneity Plasticity and Resistance to TherapiesUniversité de Reims Champagne-Ardenne, CNRS, MEDYCUniversité de Picardie Jules Verne, UR-UPJV 4667Université de Picardie Jules Verne, Centre de Ressources Régionales en Biologie Moléculaire (CRRBM)Univ. Lille, CNRS, Inserm, CHU Lille, UMR9020-U1277—CANTHER—Cancer Heterogeneity Plasticity and Resistance to TherapiesUniversité de Picardie Jules Verne, Centre de Ressources Régionales en Biologie Moléculaire (CRRBM)Institute for Advanced Biosciences, University Grenoble Alpes, INSERM U1209, CNRS UMR5309, site santé, Allée des AlpesUniversité de Picardie Jules Verne, UR-UPJV 4667Univ. Lille, CNRS, Inserm, CHU Lille, UMR9020-U1277—CANTHER—Cancer Heterogeneity Plasticity and Resistance to TherapiesUniv. Lille, CNRS, Inserm, CHU Lille, UMR9020-U1277—CANTHER—Cancer Heterogeneity Plasticity and Resistance to TherapiesUniversité de Picardie Jules Verne, UR-UPJV 4667Abstract Pancreatic ductal adenocarcinoma (PDAC) is the main and the deadliest form of pancreatic cancer. This is a major problem of public health since it will become the second leading cause of death by cancer in the next few years, mainly due to the lack of efficient therapies. Transient Receptor Potential Cation Channel Subfamily M Member 7 (TRPM7) protein, a cation channel fused with a serine/threonine kinase domain is overexpressed in PDAC and associated with a low survival. In this work, we aim to study the role of kinase domain on pancreatic cell fates by using a model of kinase domain deletion by CRISPR-Cas9. PANC-1 and MIA PaCa-2 PDAC cell lines were used and kinase domain was deleted by CRISPR-Cas9 strategy. Kinase domain deletion (ΔK) was validated by RT-qPCR and western blots. The effect of kinase domain deletion on channel function was studied by patch-clamp and Mn2+-quenching. The cell phenotype was studied by MTT and cell migration/invasion assays. Finally, the role of kinase domain was studied in vivo in xenografted mice. Here we show that TRPM7 kinase domain is required to maintain a mesenchymal phenotype in PDAC cells. We also demonstrated that TRPM7 and PAK1 interact in the same protein complexes. Moreover, TRPM7 kinase domain is required for carcinogenesis and cancer cell dissemination in vivo. Intriguingly, the role of TRPM7 kinase is cell specific and may depend on the KRAS oncogene mutation status. In conclusion, TRPM7 kinase domain is required to maintain a mesenchymal and aggressive phenotype in PDAC cells, and it could be a promising target against PDAC.https://doi.org/10.1038/s41419-025-07665-2
spellingShingle Julie Auwercx
Bernadette Neve
Alison Vanlaeys
Mathilde Fourgeaud
Ingrid Bourrin-Reynard
Mouloud Souidi
Sylvie Brassart-Pasco
Frédéric Hague
Stéphanie Guenin
Belinda Duchene
Laurent Gutierrez
Olivier Destaing
Isabelle Dhennin-Duthille
Isabelle Van Seuningen
Nicolas Jonckheere
Mathieu Gautier
The kinase domain of TRPM7 interacts with PAK1 and regulates pancreatic cancer cell epithelial-to-mesenchymal transition
Cell Death and Disease
title The kinase domain of TRPM7 interacts with PAK1 and regulates pancreatic cancer cell epithelial-to-mesenchymal transition
title_full The kinase domain of TRPM7 interacts with PAK1 and regulates pancreatic cancer cell epithelial-to-mesenchymal transition
title_fullStr The kinase domain of TRPM7 interacts with PAK1 and regulates pancreatic cancer cell epithelial-to-mesenchymal transition
title_full_unstemmed The kinase domain of TRPM7 interacts with PAK1 and regulates pancreatic cancer cell epithelial-to-mesenchymal transition
title_short The kinase domain of TRPM7 interacts with PAK1 and regulates pancreatic cancer cell epithelial-to-mesenchymal transition
title_sort kinase domain of trpm7 interacts with pak1 and regulates pancreatic cancer cell epithelial to mesenchymal transition
url https://doi.org/10.1038/s41419-025-07665-2
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