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Ajona D, Zandueta C, Corrales L, Moreno H, Pajares MJ, Ortiz-Espinosa S, Martínez-Terroba E, Perurena N, de Miguel FJ, Jantus-Lewintre E, Camps C, Vicent S, Agorreta J, Montuenga LM, Pio R, Lecanda F. Blockade of the Complement C5a/C5aR1 Axis Impairs Lung Cancer Bone Metastasis by CXCL16-mediated Effects. Am J Respir Crit Care Med 2019; 197:1164-1176. [PMID: 29327939 DOI: 10.1164/rccm.201703-0660oc] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
RATIONALE C5aR1 (CD88), a receptor for complement anaphylatoxin C5a, is a potent immune mediator. Its impact on malignant growth and dissemination of non-small cell lung cancer cells is poorly understood. OBJECTIVES To investigate the contribution of the C5a/C5aR1 axis to the malignant phenotype of non-small cell lung cancer cells, particularly in skeletal colonization, a preferential lung metastasis site. METHODS Association between C5aR1 expression and clinical outcome was assessed in silico and validated by immunohistochemistry. Functional significance was evaluated by lentiviral gene silencing and ligand l-aptamer inhibition in in vivo models of lung cancer bone metastasis. In vitro functional assays for signaling, migration, invasion, metalloprotease activity, and osteoclastogenesis were also performed. MEASUREMENTS AND MAIN RESULTS High levels of C5aR1 in human lung tumors were significantly associated with shorter recurrence-free survival, overall survival, and bone metastasis. Silencing of C5aR1 in lung cancer cells led to a substantial reduction in skeletal metastatic burden and osteolysis in in vivo models. Furthermore, metalloproteolytic, migratory, and invasive tumor cell activities were modulated in vitro by C5aR1 stimulation or gene silencing. l-Aptamer blockade or C5aR1 silencing significantly reduced the osseous metastatic activity of lung cancer cells in vivo. This effect was associated with decreased osteoclastogenic activity in vitro and was rescued by the exogenous addition of the chemokine CXCL16. CONCLUSIONS Disruption of C5aR1 signaling in lung cancer cells abrogates their tumor-associated osteoclastogenic activity, impairing osseous colonization. This study unveils the role played by the C5a/C5aR1 axis in lung cancer dissemination and supports its potential use as a novel therapeutic target.
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Affiliation(s)
- Daniel Ajona
- 1 Center for Applied Medical Research, Program in Solid Tumors and Biomarkers, Pamplona, Spain.,2 IdiSNA (Navarra Institute for Health Research), Pamplona, Spain.,3 CIBERONC (Centro de Investigación Biomédica en Red de Cáncer), Spain.,4 Department of Biochemistry and Genetics, School of Sciences, and
| | - Carolina Zandueta
- 1 Center for Applied Medical Research, Program in Solid Tumors and Biomarkers, Pamplona, Spain.,2 IdiSNA (Navarra Institute for Health Research), Pamplona, Spain.,3 CIBERONC (Centro de Investigación Biomédica en Red de Cáncer), Spain
| | - Leticia Corrales
- 1 Center for Applied Medical Research, Program in Solid Tumors and Biomarkers, Pamplona, Spain
| | - Haritz Moreno
- 1 Center for Applied Medical Research, Program in Solid Tumors and Biomarkers, Pamplona, Spain.,2 IdiSNA (Navarra Institute for Health Research), Pamplona, Spain
| | - María J Pajares
- 1 Center for Applied Medical Research, Program in Solid Tumors and Biomarkers, Pamplona, Spain.,2 IdiSNA (Navarra Institute for Health Research), Pamplona, Spain.,3 CIBERONC (Centro de Investigación Biomédica en Red de Cáncer), Spain.,5 Department of Histology and Pathology, School of Medicine, University of Navarra, Pamplona, Spain
| | - Sergio Ortiz-Espinosa
- 1 Center for Applied Medical Research, Program in Solid Tumors and Biomarkers, Pamplona, Spain.,3 CIBERONC (Centro de Investigación Biomédica en Red de Cáncer), Spain.,4 Department of Biochemistry and Genetics, School of Sciences, and
| | - Elena Martínez-Terroba
- 1 Center for Applied Medical Research, Program in Solid Tumors and Biomarkers, Pamplona, Spain.,5 Department of Histology and Pathology, School of Medicine, University of Navarra, Pamplona, Spain
| | - Naiara Perurena
- 1 Center for Applied Medical Research, Program in Solid Tumors and Biomarkers, Pamplona, Spain
| | - Fernando J de Miguel
- 1 Center for Applied Medical Research, Program in Solid Tumors and Biomarkers, Pamplona, Spain.,4 Department of Biochemistry and Genetics, School of Sciences, and
| | - Eloisa Jantus-Lewintre
- 3 CIBERONC (Centro de Investigación Biomédica en Red de Cáncer), Spain.,6 Molecular Oncology Laboratory, Fundación Investigación, Hospital General Universitario de Valencia, Valencia, Spain.,7 Department of Biotechnology, Universitat Politècnica de València, Valencia, Spain
| | - Carlos Camps
- 3 CIBERONC (Centro de Investigación Biomédica en Red de Cáncer), Spain.,6 Molecular Oncology Laboratory, Fundación Investigación, Hospital General Universitario de Valencia, Valencia, Spain.,8 Department of Medical Oncology, Hospital General Universitario de Valencia, Valencia, Spain; and.,9 Department of Medicine, Universitat de València, Valencia, Spain
| | - Silvestre Vicent
- 1 Center for Applied Medical Research, Program in Solid Tumors and Biomarkers, Pamplona, Spain.,2 IdiSNA (Navarra Institute for Health Research), Pamplona, Spain.,3 CIBERONC (Centro de Investigación Biomédica en Red de Cáncer), Spain.,5 Department of Histology and Pathology, School of Medicine, University of Navarra, Pamplona, Spain
| | - Jackeline Agorreta
- 1 Center for Applied Medical Research, Program in Solid Tumors and Biomarkers, Pamplona, Spain.,2 IdiSNA (Navarra Institute for Health Research), Pamplona, Spain.,3 CIBERONC (Centro de Investigación Biomédica en Red de Cáncer), Spain.,5 Department of Histology and Pathology, School of Medicine, University of Navarra, Pamplona, Spain
| | - Luis M Montuenga
- 1 Center for Applied Medical Research, Program in Solid Tumors and Biomarkers, Pamplona, Spain.,2 IdiSNA (Navarra Institute for Health Research), Pamplona, Spain.,3 CIBERONC (Centro de Investigación Biomédica en Red de Cáncer), Spain.,5 Department of Histology and Pathology, School of Medicine, University of Navarra, Pamplona, Spain
| | - Ruben Pio
- 1 Center for Applied Medical Research, Program in Solid Tumors and Biomarkers, Pamplona, Spain.,2 IdiSNA (Navarra Institute for Health Research), Pamplona, Spain.,3 CIBERONC (Centro de Investigación Biomédica en Red de Cáncer), Spain.,4 Department of Biochemistry and Genetics, School of Sciences, and
| | - Fernando Lecanda
- 1 Center for Applied Medical Research, Program in Solid Tumors and Biomarkers, Pamplona, Spain.,2 IdiSNA (Navarra Institute for Health Research), Pamplona, Spain.,3 CIBERONC (Centro de Investigación Biomédica en Red de Cáncer), Spain.,5 Department of Histology and Pathology, School of Medicine, University of Navarra, Pamplona, Spain
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