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Huang Z, Huang L, Zhang C, Chen G, Mai H. Blocking β2-AR and Inhibiting COX-2: A Promising Approach to Suppress OSCC Development. Int Dent J 2024:S0020-6539(24)00166-7. [PMID: 39043526 DOI: 10.1016/j.identj.2024.06.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2024] [Revised: 06/22/2024] [Accepted: 06/25/2024] [Indexed: 07/25/2024] Open
Abstract
OBJECTIVES β2-adrenergic receptor (β2-AR) and cyclooxygenase-2 (COX-2) are overexpressed in various malignant tumours including oral squamous cell carcinoma (OSCC), suggesting that they may contribute to the development of OSCC. This study aims to investigate the potential synergistic effect of β2-AR blockade and COX-2 inhibition on suppressing the development of OSCC. METHODS Effects of blocking β2-AR and inhibiting COX-2 on migration and invasion of OSCC cells were detected by wound-healing assay and transwell invasion assay. Western blot and enzyme-linked immunosorbent assay (ELISA) were used to detect the expression of genes related to the progression of OSCC. In vivo, OSCC xenograft models were established to evaluate the effect of combined treatment on survival time, tumour size, and submandibular lymph node metastasis. Immunohistochemistry, Western blot, and ELISA were used to detect the expression of invasion and metastasis relative genes. RESULTS In vitro, blocking β2-AR or inhibiting COX-2 alone could suppress invasion and metastasis of OSCC cells, and suppression with combined treatment was more significant. Expression of genes related to invasion and metastasis, including EGFR, TGF-β1, IL-1β, MMP2, and VEGFA, were downregulated significantly, especially in the combined treatment group. In vivo, the combined treatment could significantly prolong survival time in tumour-bearing mice and inhibit the growth of tumours. Furthermore, submandibular lymph node metastasis was less in the combined treatment group, and expression of the abovementioned genes was also downregulated. CONCLUSIONS The combination of β2-AR blockade and COX-2 inhibition can significantly suppress the development of OSCC via downregulating EGFR, TGF-β1, IL-1β, MMP2, and VEGFA. Findings suggest that the combined use of a β2-AR blocker and a COX-2 inhibitor could be a promising adjuvant therapy in OSCC. Both drugs are commonly prescribed, and their safety and efficacy are well established. Their use in adjuvants in OSCC should therefore be promoted in clinical practice.
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Affiliation(s)
- Zeliu Huang
- Department of Oral and Maxillofacial Surgery, College and Hospital of Stomatology, Guangxi Medical University, Nanning, Guangxi, China; Guangxi Key Laboratory of Oral and Maxillofacial Rehabilitation and Reconstruction, Nanning, Guangxi, China; Guangxi Key Laboratory of Oral and Maxillofacial Surgery Disease Treatment, Nanning, Guangxi, China; Guangxi Clinical Research Center for Craniofacial Deformity, Nanning, Guangxi, China
| | - Laifeng Huang
- Department of Oral and Maxillofacial Surgery, College and Hospital of Stomatology, Guangxi Medical University, Nanning, Guangxi, China; Guangxi Key Laboratory of Oral and Maxillofacial Rehabilitation and Reconstruction, Nanning, Guangxi, China; Guangxi Key Laboratory of Oral and Maxillofacial Surgery Disease Treatment, Nanning, Guangxi, China; Guangxi Clinical Research Center for Craniofacial Deformity, Nanning, Guangxi, China
| | - Chong Zhang
- Department of Oral and Maxillofacial Surgery, College and Hospital of Stomatology, Guangxi Medical University, Nanning, Guangxi, China; Guangxi Key Laboratory of Oral and Maxillofacial Rehabilitation and Reconstruction, Nanning, Guangxi, China; Guangxi Key Laboratory of Oral and Maxillofacial Surgery Disease Treatment, Nanning, Guangxi, China; Guangxi Clinical Research Center for Craniofacial Deformity, Nanning, Guangxi, China
| | - Guosheng Chen
- Department of Oral and Maxillofacial Surgery, College and Hospital of Stomatology, Guangxi Medical University, Nanning, Guangxi, China; Guangxi Key Laboratory of Oral and Maxillofacial Rehabilitation and Reconstruction, Nanning, Guangxi, China; Guangxi Key Laboratory of Oral and Maxillofacial Surgery Disease Treatment, Nanning, Guangxi, China; Guangxi Clinical Research Center for Craniofacial Deformity, Nanning, Guangxi, China
| | - Huaming Mai
- Department of Oral and Maxillofacial Surgery, College and Hospital of Stomatology, Guangxi Medical University, Nanning, Guangxi, China; Guangxi Key Laboratory of Oral and Maxillofacial Rehabilitation and Reconstruction, Nanning, Guangxi, China; Guangxi Key Laboratory of Oral and Maxillofacial Surgery Disease Treatment, Nanning, Guangxi, China; Guangxi Clinical Research Center for Craniofacial Deformity, Nanning, Guangxi, China.
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Jiang Y, Shi C, Tian S, Zhi F, Shen X, Shang D, Tian J. Comprehensive molecular characterization of hypertension-related genes in cancer. CARDIO-ONCOLOGY 2022; 8:10. [PMID: 35513851 PMCID: PMC9069779 DOI: 10.1186/s40959-022-00136-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Accepted: 04/29/2022] [Indexed: 11/14/2022]
Abstract
Background During cancer treatment, patients have a significantly higher risk of developing cardiovascular complications such as hypertension. In this study, we investigated the internal relationships between hypertension and different types of cancer. Methods First, we comprehensively characterized the involvement of 10 hypertension-related genes across 33 types of cancer. The somatic copy number alteration (CNA) and single nucleotide variant (SNV) of each gene were identified for each type of cancer. Then, the expression patterns of hypertension-related genes were analyzed across 14 types of cancer. The hypertension-related genes were aberrantly expressed in different types of cancer, and some were associated with the overall survival of patients or the cancer stage. Subsequently, the interactions between hypertension-related genes and clinically actionable genes (CAGs) were identified by analyzing the co-expressions and protein–protein interactions. Results We found that certain hypertension-related genes were correlated with CAGs. Next, the pathways associated with hypertension-related genes were identified. The positively correlated pathways included epithelial to mesenchymal transition, hormone androgen receptor, and receptor tyrosine kinase, and the negatively correlated pathways included apoptosis, cell cycle, and DNA damage response. Finally, the correlations between hypertension-related genes and drug sensitivity were evaluated for different drugs and different types of cancer. The hypertension-related genes were all positively or negatively correlated with the resistance of cancer to the majority of anti-cancer drugs. These results highlight the importance of hypertension-related genes in cancer. Conclusions This study provides an approach to characterize the relationship between hypertension-related genes and cancers in the post-genomic era. Supplementary Information The online version contains supplementary material available at 10.1186/s40959-022-00136-z.
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Haen P, Mege D, Crescence L, Dignat-George F, Dubois C, Panicot-Dubois L. Thrombosis Risk Associated with Head and Neck Cancer: A Review. Int J Mol Sci 2019; 20:E2838. [PMID: 31212608 PMCID: PMC6600456 DOI: 10.3390/ijms20112838] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Revised: 05/30/2019] [Accepted: 06/07/2019] [Indexed: 12/12/2022] Open
Abstract
Venous thromboembolism (VTE) is a common complication for cancer patients. VTE-associated risk varies according to the type of tumor disease. Head and neck cancer is a common cancer worldwide, and most tumors are squamous cell carcinomas due to tobacco and alcohol abuse. The risk of VTE associated with head and neck (H&N) cancer is considered empirically low, but despite the high incidence of H&N cancer, few data are available on this cancer; thus, it is difficult to state the risk of VTE. Our review aims to clarify this situation and tries to assess the real VTE risk associated with H&N cancer. We report that most clinical studies have concluded that there is a very low thrombosis risk associated with H&N cancer. Even with the biases that often exist, this clinical review seems to confirm that the risk of VTE was empirically hypothesized. Furthermore, we highlight that H&N cancer has all the biological features of a cancer associated with a high thrombosis risk, including a strong expression of procoagulant proteins, modified thrombosis/fibrinolysis mechanisms, and secretions of procoagulant microparticles and procoagulant cytokines. Thus, this is a paradoxical situation, and some undiscovered mechanisms that could explain this clinical biological ambivalence might exist.
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Affiliation(s)
- Pierre Haen
- Aix Marseille Univ, INSERM 1263, INRA, Center for CardioVascular and Nutrition Research (C2VN), 27 Boulevard Jean Moulin, 13385 Marseille, France.
- Department of Maxillo-Facial Surgery, Army Training Hospital, Laveran, 13013 Marseille, France.
| | - Diane Mege
- Aix Marseille Univ, INSERM 1263, INRA, Center for CardioVascular and Nutrition Research (C2VN), 27 Boulevard Jean Moulin, 13385 Marseille, France.
- Department of Digestive Surgery, Timone University Hospital, AP-HM, 13005 Marseille, France.
| | - Lydie Crescence
- Aix Marseille Univ, INSERM 1263, INRA, Center for CardioVascular and Nutrition Research (C2VN), 27 Boulevard Jean Moulin, 13385 Marseille, France.
| | - Françoise Dignat-George
- Aix Marseille Univ, INSERM 1263, INRA, Center for CardioVascular and Nutrition Research (C2VN), 27 Boulevard Jean Moulin, 13385 Marseille, France.
- Laboratoire d'Hématologie, Centre Hospitalo-Universitaire Conception, 385 Boulevard Baille, 13385 Marseille, France.
| | - Christophe Dubois
- Aix Marseille Univ, INSERM 1263, INRA, Center for CardioVascular and Nutrition Research (C2VN), 27 Boulevard Jean Moulin, 13385 Marseille, France.
| | - Laurence Panicot-Dubois
- Aix Marseille Univ, INSERM 1263, INRA, Center for CardioVascular and Nutrition Research (C2VN), 27 Boulevard Jean Moulin, 13385 Marseille, France.
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Abstract
Bioactive lipids are essential components of human cells and tissues. As discussed in this review, the cancer lipidome is diverse and malleable, with the ability to promote or inhibit cancer pathogenesis. Targeting lipids within the tumor and surrounding microenvironment may be a novel therapeutic approach for treating cancer patients. Additionally, the emergence of a novel super-family of lipid mediators termed specialized pro-resolving mediators (SPMs) has revealed a new role for bioactive lipid mediators in the resolution of inflammation in cancer biology. The role of SPMs in cancer holds great promise in our understanding of cancer pathogenesis and can ultimately be used in future cancer diagnostics and therapy.
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Affiliation(s)
- Megan L Sulciner
- Center for Vascular Biology Research, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA.
- Department of Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA.
| | - Allison Gartung
- Center for Vascular Biology Research, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
- Department of Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - Molly M Gilligan
- Center for Vascular Biology Research, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
- Department of Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - Charles N Serhan
- Department of Anesthesiology, Center for Experimental Therapeutics and Reperfusion Injury, Perioperative and Pain Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Dipak Panigrahy
- Center for Vascular Biology Research, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
- Department of Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
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Differential Expression of Prostaglandin I2 Synthase Associated with Arachidonic Acid Pathway in the Oral Squamous Cell Carcinoma. JOURNAL OF ONCOLOGY 2018; 2018:6301980. [PMID: 30532780 PMCID: PMC6250001 DOI: 10.1155/2018/6301980] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/17/2018] [Accepted: 10/16/2018] [Indexed: 12/11/2022]
Abstract
Introduction Differential expression of genes encoding cytochrome P450 (CYP) and other oxygenases enzymes involved in biotransformation mechanisms of endogenous and exogenous compounds can lead to oral tumor development. Objective We aimed to identify the expression profile of these genes, searching for susceptibility biomarkers in oral squamous cell carcinoma. Patients and Methods Sixteen oral squamous cell carcinoma samples were included in this study (eight tumor and eight adjacent non-tumor tissues). Gene expression quantification was performed using TaqMan Array Human CYP450 and other Oxygenases 96-well plate (Applied Biosystems) by real time qPCR. Protein quantification was performed by ELISA and IHC methods. Bioinformatics tools were used to find metabolic pathways related to the enzymes encoded by differentially expressed genes. Results. CYP27B1, CYP27A1, CYP2E1, CYP2R1, CYP2J2, CYP2U1, CYP4F12, CYP4X1, CYP4B1, PTGIS, ALOX12, and MAOB genes presented differential expression in the oral tumors. After correction by multiple tests, only the PTGIS (Prostaglandin I2 Synthase) gene presented significant differential expression (P < 0.05). The PTGIS gene and protein were reduced in oral tumors. Conclusion PTGIS presents downexpression in oral tumors. PTGIS play an important role in the arachidonic acid metabolism. Arachidonic acid and/or metabolites are derived from this pathway, which can influence the regulation of important physiological mechanisms in tumorigenesis process.
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Abstract
Eicosanoids are 20-carbon bioactive lipids derived from the metabolism of polyunsaturated fatty acids, which can modulate various biological processes including cell proliferation, adhesion and migration, angiogenesis, vascular permeability and inflammatory responses. In recent years, studies have shown the importance of eicosanoids in the control of physiological and pathological processes associated with several diseases, including cancer. The polyunsaturated fatty acid predominantly metabolized to generate 2-series eicosanoids is arachidonic acid, which is the major n-6 polyunsaturated fatty acid found in animal fat and in the occidental diet. The three main pathways responsible for metabolizing arachidonic acid and other polyunsaturated fatty acids to generate eicosanoids are the cyclooxygenase, lipoxygenase and P450 epoxygenase pathways. Inflammation plays a decisive role in various stages of tumor development including initiation, promotion, invasion and metastasis. This review will focus on studies that have investigated the role of prostanoids and lipoxygenase-derived eicosanoids in the development and progression of different tumors, highlighting the findings that may provide insights into how these eicosanoids can influence cell proliferation, cell migration and the inflammatory process. A better understanding of the complex role played by eicosanoids in both tumor cells and the tumor microenvironment may provide new markers for diagnostic and prognostic purposes and identify new therapeutic strategies in cancer treatment.
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Affiliation(s)
- Renata Nascimento Gomes
- Departamento de Biologia Celular e do Desenvolvimento, Instituto de Ciencias Biomedicas, Universidade de São Paulo, SP, BR
| | - Souza Felipe da Costa
- Departamento de Biologia Celular e do Desenvolvimento, Instituto de Ciencias Biomedicas, Universidade de São Paulo, SP, BR
| | - Alison Colquhoun
- Departamento de Biologia Celular e do Desenvolvimento, Instituto de Ciencias Biomedicas, Universidade de São Paulo, SP, BR
- *Corresponding author. E-mail:
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Sasaki Y, Ochiai T, Takamura M, Kondo Y, Yokoyama C, Hara S. Role of prostacyclin synthase in carcinogenesis. Prostaglandins Other Lipid Mediat 2017; 133:49-52. [DOI: 10.1016/j.prostaglandins.2017.05.001] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2017] [Revised: 05/08/2017] [Accepted: 05/10/2017] [Indexed: 12/19/2022]
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HSP-90 Expression as a Predictor of Response to Radiotherapy in Head and Neck Cancer Patients. ACTA OTORRINOLARINGOLOGICA ESPANOLA 2016. [DOI: 10.1016/j.otoeng.2016.04.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Solà-Villà D, Dilmé JF, Rodríguez C, Soto B, Vila L, Escudero JR, Martínez-González J, Camacho M. Expression and Cellular Localization of 15-Hydroxy-Prostaglandin-Dehydrogenase in Abdominal Aortic Aneurysm. PLoS One 2015; 10:e0136201. [PMID: 26287481 PMCID: PMC4545606 DOI: 10.1371/journal.pone.0136201] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2015] [Accepted: 07/30/2015] [Indexed: 01/07/2023] Open
Abstract
PGE2 has been implicated in abdominal aortic aneurysm (AAA) associated hypervascularization. PGE2-metabolism involves 15-hydroxyprostaglandin-dehydrogenase (15-PGDH) the expression of which in AAA is unknown. The aim of this study was to examine the expression and cell distribution of 15-PGDH in AAA. Here, we show that 15-PGDH mRNA levels were significantly higher in aorta samples from patients undergoing AAA repair than in those from healthy multiorgan donors. Consequently, the ratio of metabolized PGE2 secreted by aortic samples was significantly higher in AAA. AAA production of total PGE2 and PGE2 metabolites correlated positively with PGI2 production, while the percentage of metabolized PGE2 correlated negatively with the total amount of PGE2 and with PGI2. Transcript levels of 15-PGDH were statistically associated with leukocyte markers but did not correlate with microvascular endothelial cell markers. Immunohistochemistry revealed 15-PGDH in the areas of leukocyte infiltration in AAA samples, mainly associated with CD45-positive cells, but not in normal aorta samples. We provide new data concerning 15-PGDH expression in human AAA, showing that 15-PGDH is upregulated in AAA and mainly expressed in infiltrating leukocytes. Our data suggest that microvasculature was not involved in PGE2 catabolism, reinforcing the potential role of microvasculature derived PGE2 in AAA-associated hypervascularization.
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Affiliation(s)
- David Solà-Villà
- Autonomous University of Barcelona, Institute of Biomedical Research (II-B Sant Pau), Barcelona, Spain
| | - Jaime-Félix Dilmé
- Angiology, Vascular Biology and Inflammation Laboratory, Institute of Biomedical Research (II-B Sant Pau), Barcelona, Spain
- Vascular Surgery Department, Institute of Biomedical Research (II-B Sant Pau), Barcelona, Spain
| | - Cristina Rodríguez
- Cardiovascular Research Center (CSIC-ICCC), Institute of Biomedical Research (II-B Sant Pau), Barcelona, Spain
| | - Begoña Soto
- Angiology, Vascular Biology and Inflammation Laboratory, Institute of Biomedical Research (II-B Sant Pau), Barcelona, Spain
- Vascular Surgery Department, Institute of Biomedical Research (II-B Sant Pau), Barcelona, Spain
| | - Luis Vila
- Angiology, Vascular Biology and Inflammation Laboratory, Institute of Biomedical Research (II-B Sant Pau), Barcelona, Spain
| | - José-Román Escudero
- Angiology, Vascular Biology and Inflammation Laboratory, Institute of Biomedical Research (II-B Sant Pau), Barcelona, Spain
- Vascular Surgery Department, Institute of Biomedical Research (II-B Sant Pau), Barcelona, Spain
| | - José Martínez-González
- Cardiovascular Research Center (CSIC-ICCC), Institute of Biomedical Research (II-B Sant Pau), Barcelona, Spain
| | - Mercedes Camacho
- Angiology, Vascular Biology and Inflammation Laboratory, Institute of Biomedical Research (II-B Sant Pau), Barcelona, Spain
- * E-mail:
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García Lorenzo J, León Vintró X, Camacho Pérez de Madrid M. HSP-90 expression as a predictor of response to radiotherapy in head and neck cancer patients. ACTA OTORRINOLARINGOLOGICA ESPANOLA 2015; 67:130-4. [PMID: 26293741 DOI: 10.1016/j.otorri.2015.03.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2015] [Revised: 03/10/2015] [Accepted: 03/17/2015] [Indexed: 10/23/2022]
Abstract
INTRODUCTION AND OBJECTIVES HSP-90 is an intracellular protein that protects the cell from environmental stress situations. The overexpression of HSP-90 isoforms could serve as a mechanism of resistance to radiotherapy for tumour cells. We studied this effect in a sample of head and neck tumours. METHODS We included 87 patients diagnosed with oral cavity, oropharynx, larynx and hypopharynx tumours. We studied the expression of the HSP-90 isoforms by real-time PCR on pre-treatment biopsy samples. We analysed the relationship between HSP-90 expression levels and local relapse of the tumour with CRT decision trees. RESULTS The expression levels of the inducible citosolic isoform (HSP90AA) allowed the definition of 2 groups of patients with different rates of local relapse. The group with a low expression level showed a 2.9% local relapse rate, while the group with a high expression level showed a 38.2% rate. Survival curves showed differences in time to local relapse for both groups of patients. These differences did not reach statistical significance. CONCLUSIONS Radiotherapy response was related to expression levels of HSP-90 in a sample of head and neck cancer patients. This result could prove useful in the selection of treatments for this group of patients.
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Affiliation(s)
- Jacinto García Lorenzo
- Servicio de Otorrinolaringología, Hospital de la Santa Creu i Sant Pau, Barcelona, España.
| | - Xavier León Vintró
- Servicio de Otorrinolaringología, Hospital de la Santa Creu i Sant Pau, Barcelona, España
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Expression of Prostacyclin-Synthase in Human Breast Cancer: Negative Prognostic Factor and Protection against Cell Death In Vitro. Mediators Inflamm 2015; 2015:864136. [PMID: 26265889 PMCID: PMC4526217 DOI: 10.1155/2015/864136] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2015] [Revised: 06/08/2015] [Accepted: 07/01/2015] [Indexed: 12/11/2022] Open
Abstract
Endogenously formed prostacyclin (PGI2) and synthetic PGI2 analogues have recently been shown to regulate cell survival in various cell lines. To elucidate the significance of PGI2 in human breast cancer, we performed immunohistochemistry to analyze expression of prostacyclin-synthase (PGIS) in 248 human breast cancer specimens obtained from surgical pathology files. We examined patients' 10-year survival retrospectively by sending a questionnaire to their general practitioners and performed univariate analysis to determine whether PGIS expression correlated with patient survival. Lastly, the effects of PGI2 and its analogues on cell death were examined in a human breast cancer cell line (MCF-7) and a human T-cell leukemia cell line (CCRF-CEM). PGIS expression was observed in tumor cells in 48.7% of samples and was associated with a statistically significant reduction in 10-year survival (P = 0.038; n = 193). Transient transfection of PGIS into MCF-7 cells exposed to sulindac increased cell viability by 50% and exposure to carbaprostacyclin protected against sulindac sulfone induced apoptosis in CCRF-CEM cells. Expression of PGIS is correlated with a reduced patient survival and protects against cell death in vitro, suggesting that PGIS is a potential therapeutic target in breast cancer.
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Riquier H, Abel D, Wera AC, Heuskin AC, Genard G, Lucas S, Michiels C. Effects of Alpha Particle and Proton Beam Irradiation as Putative Cross-Talk between A549 Cancer Cells and the Endothelial Cells in a Co-Culture System. Cancers (Basel) 2015; 7:481-502. [PMID: 25794049 PMCID: PMC4381270 DOI: 10.3390/cancers7010481] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2014] [Accepted: 03/10/2015] [Indexed: 01/28/2023] Open
Abstract
Background: High-LET ion irradiation is being more and more often used to control tumors in patients. Given that tumors are now considered as complex organs composed of multiple cell types that can influence radiosensitivity, we investigated the effects of proton and alpha particle irradiation on the possible radioprotective cross-talk between cancer and endothelial cells. Materials and Methods: We designed new irradiation chambers that allow co-culture study of cells irradiated with a particle beam. A549 lung carcinoma cells and endothelial cells (EC) were exposed to 1.5 Gy of proton beam or 1 and 2 Gy of alpha particles. Cell responses were studied by clonogenic assays and cell cycle was analyzed by flow cytometry. Gene expression studies were performed using Taqman low density array and by RT-qPCR. Results: A549 cells and EC displayed similar survival fraction and they had similar cell cycle distribution when irradiated alone or in co-culture. Both types of irradiation induced the overexpression of genes involved in cell growth, inflammation and angiogenesis. Conclusions: We set up new irradiation chamber in which two cell types were irradiated together with a particle beam. We could not show that tumor cells and endothelial cells were able to protect each other from particle irradiation. Gene expression changes were observed after particle irradiation that could suggest a possible radioprotective inter-cellular communication between the two cell types but further investigations are needed to confirm these results.
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Affiliation(s)
- Hélène Riquier
- URBC-NARILIS, University of Namur, 61 rue de Bruxelles, Namur 5000, Belgium.
| | - Denis Abel
- URBC-NARILIS, University of Namur, 61 rue de Bruxelles, Namur 5000, Belgium.
| | | | | | - Géraldine Genard
- URBC-NARILIS, University of Namur, 61 rue de Bruxelles, Namur 5000, Belgium.
| | - Stéphane Lucas
- LARN-PMR, NARILIS, University of Namur, Namur 5000, Belgium.
| | - Carine Michiels
- URBC-NARILIS, University of Namur, 61 rue de Bruxelles, Namur 5000, Belgium.
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