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Giotopoulou GA, Ntaliarda G, Μarazioti A, Lilis I, Spiropoulou N, Kalogianni F, Tourkochristou E, Giopanou I, Spella M, Iliopoulou M, Korfiati A, Theofilatos K, Mavroudi S, Mantamadiotis T, Goldmann T, Marwitz S, Stathopoulos GT. cAMP response element-binding protein mediates immune-evasion of KRAS-mutant lung adenocarcinoma. Lung Cancer 2021. [DOI: 10.1183/13993003.congress-2021.pa1116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Giotopoulou GA, Ntaliarda G, Marazioti A, Lilis I, Spiropoulou N, Kalogianni F, Tourkochristou E, Giopanou I, Spella M, Iliopoulou M, Korfiati A, Theofilatos K, Mavroudi S, Mantamadiotis T, Goldmann T, Marwitz S, Stathopoulos GT. LSC - 2021 - cAMP response element-binding protein mediates immune-evasion of KRAS-mutant lung adenocarcinoma. Lung Cancer 2021. [DOI: 10.1183/13993003.congress-2021.oa4320] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Giotopoulou G, Krontira A, Spiropoulou N, Tourkochristou E, Kanellakis N, Lilis I, Marazioti A, Spella M, Stathopoulos G. LSC - 2017 - CREB signaling in KRAS-driven lung adenocarcinoma. Lung Cancer 2017. [DOI: 10.1183/1393003.congress-2017.oa4861] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Giopanou I, Lilis I, Papaleonidopoulos V, Agalioti T, Kanellakis NI, Spiropoulou N, Spella M, Stathopoulos GT. Tumor-derived osteopontin isoforms cooperate with TRP53 and CCL2 to promote lung metastasis. Oncoimmunology 2016; 6:e1256528. [PMID: 28197374 DOI: 10.1080/2162402x.2016.1256528] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2016] [Accepted: 10/29/2016] [Indexed: 12/13/2022] Open
Abstract
The lungs are ubiquitous receptacles of metastases originating from various bodily tumors. Although osteopontin (SPP1) has been associated with tumor dissemination, the role of its isoforms in lung-directed metastasis is incompletely understood. We employed syngeneic mouse models of spontaneous and induced lung-targeted metastasis in C57BL/6 mice competent and deficient in both Spp1 alleles. Tumor-derived osteopontin expression was modulated using either stable anti-Spp1 RNA interference, or forced overexpression of intracellular and secreted Spp1 isoforms. Identified osteopontin's downstream partners were validated using lung adenocarcinoma cells conditionally lacking the Trp53 gene and Ccr2-deficient mice. We determined that host-derived osteopontin was dispensable for pulmonary colonization by different tumor types. Oppositely, tumor-originated intracellular osteopontin promoted tumor cell survival by preventing tumor-related protein 53-mediated apoptosis, while the secretory osteopontin functioned in a paracrine mode to accelerate lung metastasis by enhancing tumor-derived C-C-motif chemokine ligand 2 signaling to cognate host receptors. As new ways to target osteopontin signaling are becoming available, the cytokine may constitute an important therapeutic target against pulmonary involvement by cancers of other organs.
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Affiliation(s)
- Ioanna Giopanou
- Laboratory for Molecular Respiratory Carcinogenesis, Department of Physiology, Faculty of Medicine, University of Patras , Rio, Achaia, Greece
| | - Ioannis Lilis
- Laboratory for Molecular Respiratory Carcinogenesis, Department of Physiology, Faculty of Medicine, University of Patras , Rio, Achaia, Greece
| | - Vassilios Papaleonidopoulos
- Laboratory for Molecular Respiratory Carcinogenesis, Department of Physiology, Faculty of Medicine, University of Patras , Rio, Achaia, Greece
| | - Theodora Agalioti
- Laboratory for Molecular Respiratory Carcinogenesis, Department of Physiology, Faculty of Medicine, University of Patras , Rio, Achaia, Greece
| | - Nikolaos I Kanellakis
- Laboratory for Molecular Respiratory Carcinogenesis, Department of Physiology, Faculty of Medicine, University of Patras , Rio, Achaia, Greece
| | - Nikolitsa Spiropoulou
- Laboratory for Molecular Respiratory Carcinogenesis, Department of Physiology, Faculty of Medicine, University of Patras , Rio, Achaia, Greece
| | - Magda Spella
- Laboratory for Molecular Respiratory Carcinogenesis, Department of Physiology, Faculty of Medicine, University of Patras , Rio, Achaia, Greece
| | - Georgios T Stathopoulos
- Laboratory for Molecular Respiratory Carcinogenesis, Department of Physiology, Faculty of Medicine, University of Patras, Rio, Achaia, Greece; Comprehensive Pneumology Center (CPC) and Institute for Lung Biology and Disease (iLBD), University Hospital, Ludwig-Maximilians University and Helmholtz Zentrum München, Member of the German Center for Lung Research (DZL), Munich, Bavaria, Germany
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Giannou AD, Marazioti A, Spella M, Kanellakis NI, Apostolopoulou H, Psallidas I, Prijovich ZM, Vreka M, Zazara DE, Lilis I, Papaleonidopoulos V, Kairi CA, Patmanidi AL, Giopanou I, Spiropoulou N, Harokopos V, Aidinis V, Spyratos D, Teliousi S, Papadaki H, Taraviras S, Snyder LA, Eickelberg O, Kardamakis D, Iwakura Y, Feyerabend TB, Rodewald HR, Kalomenidis I, Blackwell TS, Agalioti T, Stathopoulos GT. Mast cells mediate malignant pleural effusion formation. J Clin Invest 2015; 125:2317-34. [PMID: 25915587 DOI: 10.1172/jci79840] [Citation(s) in RCA: 83] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2014] [Accepted: 03/26/2015] [Indexed: 01/02/2023] Open
Abstract
Mast cells (MCs) have been identified in various tumors; however, the role of these cells in tumorigenesis remains controversial. Here, we quantified MCs in human and murine malignant pleural effusions (MPEs) and evaluated the fate and function of these cells in MPE development. Evaluation of murine MPE-competent lung and colon adenocarcinomas revealed that these tumors actively attract and subsequently degranulate MCs in the pleural space by elaborating CCL2 and osteopontin. MCs were required for effusion development, as MPEs did not form in mice lacking MCs, and pleural infusion of MCs with MPE-incompetent cells promoted MPE formation. Once homed to the pleural space, MCs released tryptase AB1 and IL-1β, which in turn induced pleural vasculature leakiness and triggered NF-κB activation in pleural tumor cells, thereby fostering pleural fluid accumulation and tumor growth. Evaluation of human effusions revealed that MCs are elevated in MPEs compared with benign effusions. Moreover, MC abundance correlated with MPE formation in a human cancer cell-induced effusion model. Treatment of mice with the c-KIT inhibitor imatinib mesylate limited effusion precipitation by mouse and human adenocarcinoma cells. Together, the results of this study indicate that MCs are required for MPE formation and suggest that MC-dependent effusion formation is therapeutically addressable.
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