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Heredero-Jung DH, Elena-Pérez S, García-Sánchez A, Estravís M, Isidoro-García M, Sanz C, Dávila I. Interleukin 5 Receptor Subunit Alpha Expression as a Potential Biomarker in Patients with Nasal Polyposis. Biomedicines 2023; 11:1966. [PMID: 37509606 PMCID: PMC10377376 DOI: 10.3390/biomedicines11071966] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Revised: 07/06/2023] [Accepted: 07/10/2023] [Indexed: 07/30/2023] Open
Abstract
Chronic Rhinosinusitis with Nasal Polyposis (CRSwNP) affects the quality of life of patients suffering from it. The search for a suitable biomarker has been conducted over the last decades. Interleukin 5 receptor subunit alpha (IL-5Rα) involves the activation, maintenance, and survival of eosinophils, which are highly tied to chronic inflammatory processes of the airways, like asthma or CRSwNP. In this study, we evaluate the utility of IL5RA as a genetic biomarker in CRSwNP. IL5RA mRNA expression level was analyzed in different groups of patients by performing qPCR assays. A significant increase in IL5RA expression was observed in CRSwNP patients, especially those with asthma and atopy. We found differences in expression levels when comparing groups with or without polyposis or asthma, as well as some atypical cases related to eosinophil levels. That opens a path to future studies to further characterize groups of patients with common features in the context of pharmacogenetics and in an era towards developing a more precise personalized treatment with IL-5Rα as a therapeutic target for CRSwNP.
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Affiliation(s)
- David Hansoe Heredero-Jung
- Department of Clinical Biochemistry, University Hospital of Salamanca, 37007 Salamanca, Spain
- Allergic Disease Research Group IIMD-01, Institute for Biomedical Research of Salamanca (IBSAL), 37007 Salamanca, Spain
| | - Sandra Elena-Pérez
- Department of Clinical Biochemistry, University Hospital of Salamanca, 37007 Salamanca, Spain
- Allergic Disease Research Group IIMD-01, Institute for Biomedical Research of Salamanca (IBSAL), 37007 Salamanca, Spain
| | - Asunción García-Sánchez
- Allergic Disease Research Group IIMD-01, Institute for Biomedical Research of Salamanca (IBSAL), 37007 Salamanca, Spain
- Department of Biomedical Sciences and Diagnostics, University of Salamanca, 37007 Salamanca, Spain
- Results-Oriented Cooperative Research Networks in Health (RICORS), Carlos III Health Institute, 28029 Madrid, Spain
| | - Miguel Estravís
- Allergic Disease Research Group IIMD-01, Institute for Biomedical Research of Salamanca (IBSAL), 37007 Salamanca, Spain
- Results-Oriented Cooperative Research Networks in Health (RICORS), Carlos III Health Institute, 28029 Madrid, Spain
| | - María Isidoro-García
- Department of Clinical Biochemistry, University Hospital of Salamanca, 37007 Salamanca, Spain
- Allergic Disease Research Group IIMD-01, Institute for Biomedical Research of Salamanca (IBSAL), 37007 Salamanca, Spain
- Results-Oriented Cooperative Research Networks in Health (RICORS), Carlos III Health Institute, 28029 Madrid, Spain
- Department of Medicine, University of Salamanca, 37007 Salamanca, Spain
| | - Catalina Sanz
- Allergic Disease Research Group IIMD-01, Institute for Biomedical Research of Salamanca (IBSAL), 37007 Salamanca, Spain
- Department of Biomedical Sciences and Diagnostics, University of Salamanca, 37007 Salamanca, Spain
- Department of Microbiology and Genetics, University of Salamanca, 37007 Salamanca, Spain
| | - Ignacio Dávila
- Allergic Disease Research Group IIMD-01, Institute for Biomedical Research of Salamanca (IBSAL), 37007 Salamanca, Spain
- Department of Biomedical Sciences and Diagnostics, University of Salamanca, 37007 Salamanca, Spain
- Results-Oriented Cooperative Research Networks in Health (RICORS), Carlos III Health Institute, 28029 Madrid, Spain
- Department of Allergy, University Hospital of Salamanca, 37007 Salamanca, Spain
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Elena-Pérez S, Heredero-Jung DH, García-Sánchez A, Estravís M, Martin MJ, Ramos-González J, Triviño JC, Isidoro-García M, Sanz C, Dávila I. Molecular Analysis of IL-5 Receptor Subunit Alpha as a Possible Pharmacogenetic Biomarker in Asthma. Front Med (Lausanne) 2021; 7:624576. [PMID: 33644088 PMCID: PMC7904892 DOI: 10.3389/fmed.2020.624576] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2020] [Accepted: 12/30/2020] [Indexed: 01/17/2023] Open
Abstract
Background: Asthma is a heterogeneous syndrome with a broad clinical spectrum and high drug response variability. The inflammatory response in asthma involves multiple effector cells and mediator molecules. Based on asthma immunopathogenesis, precision medicine can be a promising strategy for identifying biomarkers. Biologic therapies acting on the IL-5/IL-5 receptor axis have been developed. IL-5 promotes proliferation, differentiation and activation of eosinophils by binding to the IL-5 receptor, located on the surface of eosinophils and basophils. This study aimed to investigate the expression of IL5RA in patients with several types of asthma and its expression after treatment with benralizumab, a biologic directed against IL-5 receptor subunit alpha. Methods: Sixty peripheral blood samples, 30 from healthy controls and 30 from asthmatic patients, were selected for a transcriptomic RNAseq study. Differential expression analysis was performed by statistical assessment of fold changes and P-values. A validation study of IL5RA expression was developed using qPCR in 100 controls and 187 asthmatic patients. The effect of benralizumab on IL5RA expression was evaluated in five patients by comparing expression levels between pretreatment and after 3 months of treatment. The IL5RA mRNA levels were normalized to GAPDH and TBP expression values for each sample. Calculations were made by the comparative ΔΔCt method. All procedures followed the MIQE guidelines. Results:IL5RA was one of the most differentially overexpressed coding transcripts in the peripheral blood of asthmatic patients (P = 8.63E-08 and fold change of 2.22). In the qPCR validation study, IL5RA expression levels were significantly higher in asthmatic patients than in controls (P < 0.001). Significant expression differences were present in different asthmatic types. In the biological drug study, patients treated with benralizumab showed a significant decrease in IL5RA expression and blood eosinophil counts. A notable improvement in ACT and lung function was also observed in these patients. Conclusions: These results indicate that IL5RA is overexpressed in patients with different types of asthma. It could help identify which asthmatic patients will respond more efficiently to benralizumab, moving toward a more personalized asthma management. Although further studies are required, IL5RA could play a role as a biomarker and pharmacogenetic factor in asthma.
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Affiliation(s)
- Sandra Elena-Pérez
- Department of Clinical Biochemistry, University Hospital of Salamanca, Salamanca, Spain
| | | | - Asunción García-Sánchez
- Allergic Disease Research Group IIMD-01, Institute for Biomedical Research of Salamanca, Salamanca, Spain.,Department of Biomedical Sciences and Diagnostics, University of Salamanca, Salamanca, Spain.,Network for Cooperative Research in Health - RETICS ARADyAL, Carlos III Health Institute, Madrid, Spain
| | - Miguel Estravís
- Allergic Disease Research Group IIMD-01, Institute for Biomedical Research of Salamanca, Salamanca, Spain.,Department of Biomedical Sciences and Diagnostics, University of Salamanca, Salamanca, Spain.,Network for Cooperative Research in Health - RETICS ARADyAL, Carlos III Health Institute, Madrid, Spain
| | - Maria J Martin
- Allergic Disease Research Group IIMD-01, Institute for Biomedical Research of Salamanca, Salamanca, Spain.,Network for Cooperative Research in Health - RETICS ARADyAL, Carlos III Health Institute, Madrid, Spain
| | | | | | - María Isidoro-García
- Department of Clinical Biochemistry, University Hospital of Salamanca, Salamanca, Spain.,Allergic Disease Research Group IIMD-01, Institute for Biomedical Research of Salamanca, Salamanca, Spain.,Network for Cooperative Research in Health - RETICS ARADyAL, Carlos III Health Institute, Madrid, Spain.,Department of Medicine, University of Salamanca, Salamanca, Spain
| | - Catalina Sanz
- Allergic Disease Research Group IIMD-01, Institute for Biomedical Research of Salamanca, Salamanca, Spain.,Network for Cooperative Research in Health - RETICS ARADyAL, Carlos III Health Institute, Madrid, Spain.,Department of Microbiology and Genetics, University of Salamanca, Salamanca, Spain
| | - Ignacio Dávila
- Allergic Disease Research Group IIMD-01, Institute for Biomedical Research of Salamanca, Salamanca, Spain.,Department of Biomedical Sciences and Diagnostics, University of Salamanca, Salamanca, Spain.,Network for Cooperative Research in Health - RETICS ARADyAL, Carlos III Health Institute, Madrid, Spain.,Department of Allergy, University Hospital of Salamanca, Salamanca, Spain
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