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Samain R, Brunel A, Douché T, Fanjul M, Cassant-Sourdy S, Rochotte J, Cros J, Neuzillet C, Raffenne J, Duluc C, Perraud A, Nigri J, Gigoux V, Bieche I, Ponzo M, Carpentier G, Cascone I, Tomasini R, Schmid HA, Mathonnet M, Nicolle R, Bousquet MP, Martineau Y, Pyronnet S, Jean C, Bousquet C. Pharmacologic Normalization of Pancreatic Cancer-Associated Fibroblast Secretome Impairs Prometastatic Cross-Talk With Macrophages. Cell Mol Gastroenterol Hepatol 2021; 11:1405-1436. [PMID: 33482394 PMCID: PMC8024982 DOI: 10.1016/j.jcmgh.2021.01.008] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 01/08/2021] [Accepted: 01/11/2021] [Indexed: 02/07/2023]
Abstract
BACKGROUND & AIMS Cancer-associated fibroblasts (CAFs) from pancreatic adenocarcinoma (PDA) present high protein synthesis rates. CAFs express the G-protein-coupled somatostatin receptor sst1. The sst1 agonist SOM230 blocks CAF protumoral features in vitro and in immunocompromised mice. We have explored here the therapeutic potential of SOM230, and underlying mechanisms, in immunocompetent models of murine PDA mimicking the heavy fibrotic and immunosuppressive stroma observed in patient tumors. METHODS Large-scale mass spectrometry analyses were performed on media conditioned from 9 patient PDA-derived CAF primary cultures. Spontaneous transgenic and experimental (orthotopic co-graft of tumor cells plus CAFs) PDA-bearing mice were longitudinally ultrasound-monitored for tumor and metastatic progression. Histopathology and flow cytometry analyses were performed on primary tumors and metastases. Stromal signatures were functionally validated through bioinformatics using several published, and 1 original, PDA database. RESULTS Proteomics on the CAF secretome showed that SOM230 controls stromal activities including inflammatory responses. Among the identified secreted proteins, we validated that colony-stimulating factor 1 (CSF-1) (a macrophage growth factor) was reduced by SOM230 in the tumor and plasma of PDA-harboring mice, alongside intratumor stromal normalization (reduced CAF and macrophage activities), and dramatic metastasis reduction. In transgenic mice, these SOM230 benefits alleviate the chemotherapy-induced (gemcitabine) immunosuppressive stroma reshaping. Mechanistically, SOM230 acts in vivo on CAFs through sst1 to disrupt prometastatic CAF production of CSF-1 and cross-talk with macrophages. We found that in patients, stromal CSF-1 was associated with aggressive PDA forms. CONCLUSIONS We propose SOM230 as an antimetastatic therapy in PDA for its capacity to remodel the fibrotic and immunosuppressive myeloid stroma. This pharmacotherapy should benefit PDA patients treated with chemotherapies.
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Affiliation(s)
- Rémi Samain
- Centre de Recherches en Cancérologie de Toulouse (CRCT), Université de Toulouse, INSERM Unité Mixte de Recherche UMR-1037, CNRS Equipe de Recherche Labellisée ERL5294, Equipe de Recherche Labellisée "Ligue Contre le Cancer" & "LabEx Toucan", Toulouse, France
| | - Alexia Brunel
- Centre de Recherches en Cancérologie de Toulouse (CRCT), Université de Toulouse, INSERM Unité Mixte de Recherche UMR-1037, CNRS Equipe de Recherche Labellisée ERL5294, Equipe de Recherche Labellisée "Ligue Contre le Cancer" & "LabEx Toucan", Toulouse, France
| | - Thibault Douché
- Centre de Recherches en Cancérologie de Toulouse (CRCT), Université de Toulouse, INSERM Unité Mixte de Recherche UMR-1037, CNRS Equipe de Recherche Labellisée ERL5294, Equipe de Recherche Labellisée "Ligue Contre le Cancer" & "LabEx Toucan", Toulouse, France
| | - Marjorie Fanjul
- Centre de Recherches en Cancérologie de Toulouse (CRCT), Université de Toulouse, INSERM Unité Mixte de Recherche UMR-1037, CNRS Equipe de Recherche Labellisée ERL5294, Equipe de Recherche Labellisée "Ligue Contre le Cancer" & "LabEx Toucan", Toulouse, France
| | - Stéphanie Cassant-Sourdy
- Centre de Recherches en Cancérologie de Toulouse (CRCT), Université de Toulouse, INSERM Unité Mixte de Recherche UMR-1037, CNRS Equipe de Recherche Labellisée ERL5294, Equipe de Recherche Labellisée "Ligue Contre le Cancer" & "LabEx Toucan", Toulouse, France
| | - Julia Rochotte
- Centre de Recherches en Cancérologie de Toulouse (CRCT), Université de Toulouse, INSERM Unité Mixte de Recherche UMR-1037, CNRS Equipe de Recherche Labellisée ERL5294, Equipe de Recherche Labellisée "Ligue Contre le Cancer" & "LabEx Toucan", Toulouse, France
| | - Jérôme Cros
- Department of Pathology, Beaujon-Bichat University Hospital–Paris Diderot University, Clichy, France
| | - Cindy Neuzillet
- Medical Oncology Department, Curie Institute, Versailles Saint-Quentin University, Saint Cloud, France
| | - Jérôme Raffenne
- Centre de Recherches en Cancérologie de Toulouse (CRCT), Université de Toulouse, INSERM Unité Mixte de Recherche UMR-1037, CNRS Equipe de Recherche Labellisée ERL5294, Equipe de Recherche Labellisée "Ligue Contre le Cancer" & "LabEx Toucan", Toulouse, France
| | - Camille Duluc
- Centre de Recherches en Cancérologie de Toulouse (CRCT), Université de Toulouse, INSERM Unité Mixte de Recherche UMR-1037, CNRS Equipe de Recherche Labellisée ERL5294, Equipe de Recherche Labellisée "Ligue Contre le Cancer" & "LabEx Toucan", Toulouse, France
| | - Aurélie Perraud
- Equipe d'Accueil EA 3842 Laboratory, Medicine and Pharmacy Faculties, University of Limoges, Limoges, France
| | - Jérémy Nigri
- INSERM U1068/UMR 7258 CNRS, Cancer Research Center of Marseille, Marseille, France
| | - Véronique Gigoux
- Centre de Recherches en Cancérologie de Toulouse (CRCT), Université de Toulouse, INSERM Unité Mixte de Recherche UMR-1037, CNRS Equipe de Recherche Labellisée ERL5294, Equipe de Recherche Labellisée "Ligue Contre le Cancer" & "LabEx Toucan", Toulouse, France
| | - Ivan Bieche
- Department of Genetics, Institut Curie, Paris Descartes University, Paris, France
| | - Matteo Ponzo
- Growth, Reparation and Tissue Regeneration Laboratory, Equipe de Recherche Labellisée ERL-CNRS 9215, University of Paris-Est, Créteil, France
| | - Gilles Carpentier
- Growth, Reparation and Tissue Regeneration Laboratory, Equipe de Recherche Labellisée ERL-CNRS 9215, University of Paris-Est, Créteil, France
| | - Ilaria Cascone
- Growth, Reparation and Tissue Regeneration Laboratory, Equipe de Recherche Labellisée ERL-CNRS 9215, University of Paris-Est, Créteil, France
| | - Richard Tomasini
- INSERM U1068/UMR 7258 CNRS, Cancer Research Center of Marseille, Marseille, France
| | | | - Muriel Mathonnet
- Equipe d'Accueil EA 3842 Laboratory, Medicine and Pharmacy Faculties, University of Limoges, Limoges, France
| | - Rémy Nicolle
- Programme Cartes d’Identité des Tumeurs, Ligue Nationale Contre Le Cancer, Paris, France
| | - Marie-Pierre Bousquet
- Institute for Pharmacology and Structural Biology, University of Toulouse, Toulouse, France
| | - Yvan Martineau
- Centre de Recherches en Cancérologie de Toulouse (CRCT), Université de Toulouse, INSERM Unité Mixte de Recherche UMR-1037, CNRS Equipe de Recherche Labellisée ERL5294, Equipe de Recherche Labellisée "Ligue Contre le Cancer" & "LabEx Toucan", Toulouse, France
| | - Stéphane Pyronnet
- Centre de Recherches en Cancérologie de Toulouse (CRCT), Université de Toulouse, INSERM Unité Mixte de Recherche UMR-1037, CNRS Equipe de Recherche Labellisée ERL5294, Equipe de Recherche Labellisée "Ligue Contre le Cancer" & "LabEx Toucan", Toulouse, France
| | - Christine Jean
- Centre de Recherches en Cancérologie de Toulouse (CRCT), Université de Toulouse, INSERM Unité Mixte de Recherche UMR-1037, CNRS Equipe de Recherche Labellisée ERL5294, Equipe de Recherche Labellisée "Ligue Contre le Cancer" & "LabEx Toucan", Toulouse, France
| | - Corinne Bousquet
- Centre de Recherches en Cancérologie de Toulouse (CRCT), Université de Toulouse, INSERM Unité Mixte de Recherche UMR-1037, CNRS Equipe de Recherche Labellisée ERL5294, Equipe de Recherche Labellisée "Ligue Contre le Cancer" & "LabEx Toucan", Toulouse, France,Correspondence Address correspondence to: Corinne Bousquet, VMD, PhD, INSERM U1037, Cancer Research Center of Toulouse, 2 Avenue Hubert Curien, CS53717, 31037 Toulouse Cedex 1, France. fax: (33) (0) 56131-9752.
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