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Brar T, Marks L, Lal D. Insights into the epigenetics of chronic rhinosinusitis with and without nasal polyps: a systematic review. FRONTIERS IN ALLERGY 2023; 4:1165271. [PMID: 37284022 PMCID: PMC10240395 DOI: 10.3389/falgy.2023.1165271] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Accepted: 05/03/2023] [Indexed: 06/08/2023] Open
Abstract
Background Epigenetics facilitates insights on the impact of host environment on the genesis of chronic rhinosinusitis (CRS) through modulations of host gene expression and activity. Epigenetic mechanisms such as DNA methylation cause reversible but heritable changes in gene expression over generations of progeny, without altering the DNA base-pair sequences. These studies offer a critical understanding of the environment-induced changes that result in host predisposition to disease and may help in developing novel biomarkers and therapeutics. The goal of this systematic review is to summarize the current evidence on epigenetics of CRS with a focus on chronic rhinosinusitis with nasal polyps (CRSwNP) and highlight gaps that merit further research. Methods A systematic review of the English language literature was performed to identify investigations related to epigenetic studies in subjects with CRS. Results The review identified 65 studies. These have focused on DNA methylation and non-coding RNAs, with only a few on histone deacetylation, alternative polyadenylation, and chromatin accessibility. Studies include those investigating in vivo and in vitro changes or both. Studies also include animal models of CRS. Almost all have been conducted in Asia. The genome-wide studies of DNA methylation found differences in global methylation between CRSwNP and controls, while others specifically found significant differences in methylation of the CpG sites of the thymic stromal lymphopoietin (TSLP), IL-8, and PLAT. In addition, DNA methyltransferase inhibitors and histone deacetylase inhibitors were studied as potential therapeutic agents. Majority of the studies investigating non-coding RNAs focused on micro-RNAs (miRNA) and found differences in global expression of miRNA levels. These studies also revealed some previously known as well as novel targets and pathways such as tumor necrosis factor alpha, TGF beta-1, IL-10, EGR2, aryl hydrocarbon receptor, PI3K/AKT pathway, mucin secretion, and vascular permeability. Overall, the studies have found a dysregulation in pathways/genes involving inflammation, immune regulation, tissue remodeling, structural proteins, mucin secretion, arachidonic acid metabolism, and transcription. Conclusions Epigenetic studies in CRS subjects suggest that there is likely a major impact of the environment. However, these are association studies and do not directly imply pathogenesis. Longitudinal studies in geographically and racially diverse population cohorts are necessary to quantify genetic vs. environmental risks for CRSwNP and CRS without nasal polyps and assess heritability risk, as well as develop novel biomarkers and therapeutic agents.
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Affiliation(s)
- Tripti Brar
- Division of Rhinology, Department of Otolaryngology, Mayo Clinic in Arizona, Phoenix, AZ, United States
| | - Lisa Marks
- Division of Education, Department of Library Services, Mayo Clinic, Phoenix, AZ, United States
| | - Devyani Lal
- Division of Rhinology, Department of Otolaryngology, Mayo Clinic in Arizona, Phoenix, AZ, United States
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2
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Li J, Qiu CY, Tao YJ, Cheng L. Epigenetic modifications in chronic rhinosinusitis with and without nasal polyps. Front Genet 2023; 13:1089647. [PMID: 36699454 PMCID: PMC9868256 DOI: 10.3389/fgene.2022.1089647] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Accepted: 12/23/2022] [Indexed: 01/10/2023] Open
Abstract
Chronic rhinosinusitis (CRS) has brought a huge socioeconomic burden. However, its mechanism is still elusive, which may involve genetic, environmental and some other factors. Epigenetic analyses have been conducted to explore the mechanisms underlying CRS. Here, we reviewed the fruits in the epigenetic studies on DNA methylation, histone modification, and non-coding RNA regulation. We concluded that the epigenetic research on CRS has made great breakthroughs, especially in the past 5 years and the field of microRNAs. "Epigenetic therapies" are expected to be designed to treat CRS in the future.
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Affiliation(s)
- Jing Li
- Department of Otorhinolaryngology & Clinical Allergy Center, The First Affiliated Hospital, Nanjing Medical University, Nanjing, China,Department of Otorhinolaryngology, The Affiliated Jiangning Hospital, Nanjing Medical University, Nanjing, China
| | - Chang-Yu Qiu
- Department of Otorhinolaryngology & Clinical Allergy Center, The First Affiliated Hospital, Nanjing Medical University, Nanjing, China,International Centre for Allergy Research, Nanjing Medical University, Nanjing, China
| | - Yue-Jin Tao
- Department of Otorhinolaryngology, The Affiliated Jiangning Hospital, Nanjing Medical University, Nanjing, China,*Correspondence: Yue-Jin Tao, ; Lei Cheng,
| | - Lei Cheng
- Department of Otorhinolaryngology & Clinical Allergy Center, The First Affiliated Hospital, Nanjing Medical University, Nanjing, China,International Centre for Allergy Research, Nanjing Medical University, Nanjing, China,*Correspondence: Yue-Jin Tao, ; Lei Cheng,
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3
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Blight BJ, Gill AS, Sumsion JS, Pollard CE, Ashby S, Oakley GM, Alt JA, Pulsipher A. Cell Adhesion Molecules are Upregulated and May Drive Inflammation in Chronic Rhinosinusitis with Nasal Polyposis. J Asthma Allergy 2021; 14:585-593. [PMID: 34079296 PMCID: PMC8166329 DOI: 10.2147/jaa.s307197] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Accepted: 04/20/2021] [Indexed: 11/23/2022] Open
Abstract
Purpose Chronic rhinosinusitis with nasal polyps (CRSwNP) is predominantly characterized by eosinophil- and T helper 2 cell (Th2)-biased inflammation. Integrins and intercellular adhesion molecules (ICAMs) are superfamilies of cell adhesion molecules (CAMs) that facilitate the recruitment and trafficking of immune cells and have been implicated in coordinating eosinophil and Th2 cell adhesion and signaling in asthma. The roles of CAMs in CRSwNP, however, remain poorly understood. The purpose of this study was to characterize the systemic and local expression of CAMs and identify which CAMs are potentially involved in CRSwNP pathology. Materials and Methods A prospective observational study was conducted using peripheral blood and anterior ethmoid tissues of patients with CRSwNP (n=32) and controls (n=15). Multiplex gene analysis and Pearson correlations were performed to identify associations between systemically and locally expressed CAMs. Based on the gene expression results, immunohistochemical evaluation and quantification of cells expressing integrins ITGAM, ITGAX, and ITGB2, as well as ICAM-3 in sinonasal tissues were conducted to compare local protein expression patterns. Results Integrin and ICAM genes were significantly elevated in the blood (p<0.001 to p<0.05) and sinuses (p<0.0003 to p<0.05) of patients with CRSwNP compared to controls. Strong positive correlations of genes expressed in the blood (p<0.01 to p<0.05) and sinuses (p<0.01) were observed between ITGAM, ITGAX, ITGB2, and ICAM3. ITGAM-, ITGB2-, ICAM-3-, and ICAM-3/ITGB2-positive cell counts were significantly increased in CRSwNP compared to controls (p<0.0001 to p<0.04), and a positive correlation between ICAM-3/ITGB2- and ITGAM-positive cell counts was observed (p<0.02). Conclusion The systemic and local expression of ITGAM, ITGB2, and ICAM-3 is significantly upregulated in CRSwNP, suggesting that integrin complex ITGAM/ITGB2 and ICAM-3 serve a potential role in inflammation-mediated signaling in CRSwNP.
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Affiliation(s)
- Brennan J Blight
- Division of Otolaryngology-Head and Neck Surgery, Rhinology-Sinus and Skull Base Surgery Program, Department of Surgery, University of Utah School of Medicine, Salt Lake City, UT, USA
| | - Amarbir S Gill
- Division of Otolaryngology-Head and Neck Surgery, Rhinology-Sinus and Skull Base Surgery Program, Department of Surgery, University of Utah School of Medicine, Salt Lake City, UT, USA
| | - Jorgen S Sumsion
- Division of Otolaryngology-Head and Neck Surgery, Rhinology-Sinus and Skull Base Surgery Program, Department of Surgery, University of Utah School of Medicine, Salt Lake City, UT, USA
| | - Chelsea E Pollard
- Division of Otolaryngology-Head and Neck Surgery, Rhinology-Sinus and Skull Base Surgery Program, Department of Surgery, University of Utah School of Medicine, Salt Lake City, UT, USA
| | - Shaelene Ashby
- Division of Otolaryngology-Head and Neck Surgery, Rhinology-Sinus and Skull Base Surgery Program, Department of Surgery, University of Utah School of Medicine, Salt Lake City, UT, USA
| | - Gretchen M Oakley
- Division of Otolaryngology-Head and Neck Surgery, Rhinology-Sinus and Skull Base Surgery Program, Department of Surgery, University of Utah School of Medicine, Salt Lake City, UT, USA
| | - Jeremiah A Alt
- Division of Otolaryngology-Head and Neck Surgery, Rhinology-Sinus and Skull Base Surgery Program, Department of Surgery, University of Utah School of Medicine, Salt Lake City, UT, USA
| | - Abigail Pulsipher
- Division of Otolaryngology-Head and Neck Surgery, Rhinology-Sinus and Skull Base Surgery Program, Department of Surgery, University of Utah School of Medicine, Salt Lake City, UT, USA
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Gill AS, Pulsipher A, Sumsion JS, Oakley GM, Leclair LW, Howe H, Orlandi RR, Alt JA. Transcriptional Changes in Chronic Rhinosinusitis with Asthma Favor a Type 2 Molecular Endotype Independent of Polyp Status. J Asthma Allergy 2021; 14:405-413. [PMID: 33911879 PMCID: PMC8071779 DOI: 10.2147/jaa.s301825] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Accepted: 03/16/2021] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Data regarding the inflammatory profile of patients with asthma and chronic rhinosinusitis (CRS-A) with (CRSwNP-A) and without (CRSsNP-A) nasal polyposis remain limited. OBJECTIVE Define and compare systemic transcriptional changes in patients with CRS-A to those with non-asthma-related CRS with (CRSwNP) and without nasal polyposis (CRSsNP). METHODS Thirty-four patients with CRS-A (n=19) and CRS (n=15) were prospectively enrolled into an observational study. Demographic information and subjective and objective disease severity measures were recorded. Multiplex gene expression analysis of mRNA extracted from peripheral blood was performed. A total of 594 genes associated with innate/adaptive immunity were analyzed using NanoString technology. Gene expression ratios were reported for genes that were differentially expressed among these cohorts. Linear regression analysis was used to compare the mRNA transcript copy numbers for each gene with disease severity. RESULTS There was no significant difference in age, gender, nasal polyposis, or health-related quality of life measures between the two groups (p>0.05). HLA class II histocompatibility antigen, DRB3-1 beta chain (HLA-DRB3) was significantly upregulated in the peripheral blood of patients with CRSsNP-A compared to CRSsNP, whereas chemokine (C-C motif) ligands 4 (CCL4) and zinc finger protein helios (IKZF2) were significantly upregulated in CRSwNP-A compared to CRSwNP (p<0.05). CONCLUSION Patients with CRSsNP-A demonstrate a molecular endotype associated with a Th2-dominant inflammatory profile compared to CRSsNP. Patients with CRSwNP-A similarly demonstrate an overrepresentation of genes associated with Th2-driven inflammation compared to patients with CRSwNP.
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Affiliation(s)
- Amarbir S Gill
- Division of Otolaryngology – Head and Neck Surgery, Department of Surgery, University of Utah, Salt Lake City, UT, USA
| | - Abigail Pulsipher
- Division of Otolaryngology – Head and Neck Surgery, Department of Surgery, University of Utah, Salt Lake City, UT, USA
| | | | - Gretchen M Oakley
- Division of Otolaryngology – Head and Neck Surgery, Department of Surgery, University of Utah, Salt Lake City, UT, USA
| | - Laurie W Leclair
- Department of Pulmonology/Critical Care Medicine, University of Utah, Salt Lake City, UT, USA
| | - Heather Howe
- Department of Pulmonology/Critical Care Medicine, University of Utah, Salt Lake City, UT, USA
| | - Richard R Orlandi
- Division of Otolaryngology – Head and Neck Surgery, Department of Surgery, University of Utah, Salt Lake City, UT, USA
| | - Jeremiah A Alt
- Division of Otolaryngology – Head and Neck Surgery, Department of Surgery, University of Utah, Salt Lake City, UT, USA
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Hao Y, Zhao Y, Wang P, Du K, Li Y, Yang Z, Wang X, Zhang L. Transcriptomic Signatures and Functional Network Analysis of Chronic Rhinosinusitis With Nasal Polyps. Front Genet 2021; 12:609754. [PMID: 33603773 PMCID: PMC7884819 DOI: 10.3389/fgene.2021.609754] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Accepted: 01/07/2021] [Indexed: 11/13/2022] Open
Abstract
Chronic rhinosinusitis with nasal polyps (CRSwNP) is a chronic sinonasal inflammatory disease with limited treatment options of corticosteroids, sinus surgery, or both. CRSwNP is frequently associated with allergic rhinitis and asthma, but the molecular mechanisms underlying CRSwNP inflammation are not completely understood. We obtained four gene expression profiles (GSE136825, GSE36830, GSE23552, and GSE72713) from four Gene Expression Omnibus (GEO), which collectively included 65 nasal polyp samples from CRSwNP patients and 54 nasal mucosal samples from healthy controls. Using an integrated analysis approach, we identified 76 co-differentially expressed genes (co-DEGs, including 45 upregulated and 31 downregulated) in CRSwNP patients compared with the healthy controls. Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) analyses identified the terms including immune effector process, leukocyte migration, regulation of the inflammatory response, Staphylococcus aureus infection, and cytokine-cytokine receptor interaction. protein-protein interaction (PPI) network analysis and real-time quantitative PCR (RT-qPCR) showed that 7 genes might be crucial in CRSwNP pathogenesis. Repurposing drug candidates (Alfadolone, Hydralazine, SC-560, Iopamidol, Iloprost, etc) for CRSwNP treatment were identified from the Connectivity Map (CMap) database. Our results suggest multiple molecular mechanisms, diagnostic biomarkers, potential therapeutic targets, and new repurposing drug candidates for CRSwNP treatment.
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Affiliation(s)
- Yun Hao
- Department of Otolaryngology Head and Neck Surgery, Beijing TongRen Hospital, Capital Medical University, Beijing, China.,Department of Allergy, Beijing TongRen Hospital, Capital Medical University, Beijing, China.,Beijing Key Laboratory of Nasal Diseases, Beijing Institute of Otolaryngology, Beijing, China
| | - Yan Zhao
- Department of Otolaryngology Head and Neck Surgery, Beijing TongRen Hospital, Capital Medical University, Beijing, China.,Department of Allergy, Beijing TongRen Hospital, Capital Medical University, Beijing, China.,Beijing Key Laboratory of Nasal Diseases, Beijing Institute of Otolaryngology, Beijing, China
| | - Ping Wang
- Department of Otolaryngology Head and Neck Surgery, Beijing TongRen Hospital, Capital Medical University, Beijing, China.,Department of Allergy, Beijing TongRen Hospital, Capital Medical University, Beijing, China.,Beijing Key Laboratory of Nasal Diseases, Beijing Institute of Otolaryngology, Beijing, China
| | - Kun Du
- Department of Otolaryngology Head and Neck Surgery, Beijing TongRen Hospital, Capital Medical University, Beijing, China.,Department of Allergy, Beijing TongRen Hospital, Capital Medical University, Beijing, China.,Beijing Key Laboratory of Nasal Diseases, Beijing Institute of Otolaryngology, Beijing, China
| | - Ying Li
- Department of Otolaryngology Head and Neck Surgery, Beijing TongRen Hospital, Capital Medical University, Beijing, China.,Department of Allergy, Beijing TongRen Hospital, Capital Medical University, Beijing, China.,Beijing Key Laboratory of Nasal Diseases, Beijing Institute of Otolaryngology, Beijing, China
| | - Zhen Yang
- Shanghai Key Laboratory of Medical Epigenetics, The International Co-laboratory of Medical Epigenetics and Metabolism, Ministry of Science and Technology, Pudong Hospital, Institutes of Biomedical Sciences, Fudan University, Shanghai, China
| | - Xiangdong Wang
- Department of Otolaryngology Head and Neck Surgery, Beijing TongRen Hospital, Capital Medical University, Beijing, China.,Department of Allergy, Beijing TongRen Hospital, Capital Medical University, Beijing, China.,Beijing Key Laboratory of Nasal Diseases, Beijing Institute of Otolaryngology, Beijing, China
| | - Luo Zhang
- Department of Otolaryngology Head and Neck Surgery, Beijing TongRen Hospital, Capital Medical University, Beijing, China.,Department of Allergy, Beijing TongRen Hospital, Capital Medical University, Beijing, China.,Beijing Key Laboratory of Nasal Diseases, Beijing Institute of Otolaryngology, Beijing, China.,Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China
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6
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Gao WQ, Hu XM, Zhang Q, Yang L, Lv XZ, Chen S, Wu P, Duan DW, Lang YH, Ning M, Lai KG, Zhang ZY, Liang B, Bao JY, Wu HD, Li T. Downregulation of circFASTKD1 ameliorates myocardial infarction by promoting angiogenesis. Aging (Albany NY) 2020; 13:3588-3604. [PMID: 33411690 PMCID: PMC7906207 DOI: 10.18632/aging.202305] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Accepted: 09/29/2020] [Indexed: 01/11/2023]
Abstract
Circular RNAs (circRNAs), a novel class of endogenous long non-coding RNAs, have attracted considerable attention due to their closed continuous loop structure and potential clinical value. In this study, we investigated the function of circFASTKD1 in vascular endothelial cells. CircFASTKD1 bound directly to miR-106a and relieved its inhibition of Large Tumor Suppressor Kinases 1 and 2, thereby suppressing the Yes-Associated Protein signaling pathway. Under both normal and hypoxic conditions, the ectopic expression of circFASTKD1 reduced the viability, migration, mobility and tube formation of vascular endothelial cells, whereas the downregulation of circFASTKD1 induced angiogenesis by promoting these processes. Moreover, downregulation of circFASTKD1 in mice improved cardiac function and repair after myocardial infarction. These findings indicate that circFASTKD1 is a potent inhibitor of angiogenesis after myocardial infarction and that silencing circFASTKD1 exerts therapeutic effects during hypoxia by stimulating angiogenesis in vitro and in vivo.
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Affiliation(s)
- Wen-Qing Gao
- The Third Central Hospital of Tianjin, Tianjin, China.,Tianjin Key Laboratory of Extracorporeal Life Support for Critical Diseases, Tianjin, China.,Artificial Cell Engineering Technology Research Center, Tianjin, China
| | - Xiao-Min Hu
- The Third Central Hospital of Tianjin, Tianjin, China.,Tianjin Key Laboratory of Extracorporeal Life Support for Critical Diseases, Tianjin, China.,Artificial Cell Engineering Technology Research Center, Tianjin, China
| | - Qiang Zhang
- The Third Central Hospital of Tianjin, Tianjin, China.,Tianjin Key Laboratory of Extracorporeal Life Support for Critical Diseases, Tianjin, China.,Artificial Cell Engineering Technology Research Center, Tianjin, China
| | - Lan Yang
- Tianjin Key Laboratory of Early Druggability Evaluation of Innovative Drugs and Tianjin Key Laboratory of Molecular Drug Research, Tianjin International Joint Academy of Biomedicine, Tianjin, China
| | - Xin-Ze Lv
- Good Laboratory Practice Center, Tianjin International Joint Academy of Biomedicine, Tianjin, China
| | - Shuang Chen
- Tianjin Key Laboratory of Early Druggability Evaluation of Innovative Drugs and Tianjin Key Laboratory of Molecular Drug Research, Tianjin International Joint Academy of Biomedicine, Tianjin, China
| | - Peng Wu
- The Third Central Hospital of Tianjin, Tianjin, China.,Tianjin Key Laboratory of Extracorporeal Life Support for Critical Diseases, Tianjin, China.,Artificial Cell Engineering Technology Research Center, Tianjin, China
| | - Da-Wei Duan
- The Third Central Hospital of Tianjin, Tianjin, China.,Tianjin Key Laboratory of Extracorporeal Life Support for Critical Diseases, Tianjin, China.,Artificial Cell Engineering Technology Research Center, Tianjin, China
| | - Yu-Heng Lang
- The Third Central Hospital of Tianjin, Tianjin, China.,Tianjin Key Laboratory of Extracorporeal Life Support for Critical Diseases, Tianjin, China.,Artificial Cell Engineering Technology Research Center, Tianjin, China
| | - Meng Ning
- The Third Central Hospital of Tianjin, Tianjin, China.,Tianjin Key Laboratory of Extracorporeal Life Support for Critical Diseases, Tianjin, China.,Artificial Cell Engineering Technology Research Center, Tianjin, China
| | - Ke-Guan Lai
- Good Laboratory Practice Center, Tianjin International Joint Academy of Biomedicine, Tianjin, China
| | - Zhi-Yuan Zhang
- Tianjin Key Laboratory of Early Druggability Evaluation of Innovative Drugs and Tianjin Key Laboratory of Molecular Drug Research, Tianjin International Joint Academy of Biomedicine, Tianjin, China
| | - Bin Liang
- Tianjin Key Laboratory of Early Druggability Evaluation of Innovative Drugs and Tianjin Key Laboratory of Molecular Drug Research, Tianjin International Joint Academy of Biomedicine, Tianjin, China
| | - Jing-Yu Bao
- Good Laboratory Practice Center, Tianjin International Joint Academy of Biomedicine, Tianjin, China
| | - Hai-Dong Wu
- Tianjin Key Laboratory of Early Druggability Evaluation of Innovative Drugs and Tianjin Key Laboratory of Molecular Drug Research, Tianjin International Joint Academy of Biomedicine, Tianjin, China
| | - Tong Li
- The Third Central Hospital of Tianjin, Tianjin, China.,Tianjin Key Laboratory of Extracorporeal Life Support for Critical Diseases, Tianjin, China.,Artificial Cell Engineering Technology Research Center, Tianjin, China
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7
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Chiarella E, Lombardo N, Lobello N, Aloisio A, Aragona T, Pelaia C, Scicchitano S, Bond HM, Mesuraca M. Nasal Polyposis: Insights in Epithelial-Mesenchymal Transition and Differentiation of Polyp Mesenchymal Stem Cells. Int J Mol Sci 2020; 21:E6878. [PMID: 32961745 PMCID: PMC7555226 DOI: 10.3390/ijms21186878] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Revised: 09/11/2020] [Accepted: 09/17/2020] [Indexed: 12/17/2022] Open
Abstract
Chronic rhinosinusitis is a common inflammatory disease of paranasal sinuses, which causes rhinorrhea, nasal congestion, and hyposmia. The genetic predisposition or the exposure to irritants can sustain the inflammatory response and the development of nasal polyposis. Nasal polyps are benign and teardrop-shaped growths that project in the nasal cavities, and originate from the ethmoid sinuses. This inflammatory process is associated with high expression of IL-4, IL-5 and IL-13 and IgE. Antibodies targeting these cytokines or receptors represent a therapeutic strategy in the treatment of nasal polyposis in combination with corticosteroids. The molecular pathogenesis of nasal polyps in chronic rhinosinusitis (CRS) patients is associated with remodeling transition, a process in which epithelial cells lose their typical phenotype, acquiring a mesenchymal-like aspect. TGFβ/SMAD, ERK, and Wnt/β-catenin pathways are altered during the nasal tissue remodeling. miRNA and inhibitor molecules targeting these signaling pathways are able to interfere with the process; which could lead to alternative therapies. Nasal polyps are an alternative source of mesenchymal stem cells, which can be isolated from surgical biopsies. A molecular understanding of the biology of PO-MSCs will contribute to the delineating inflammatory process underlying the development of nasal polyps.
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Affiliation(s)
- Emanuela Chiarella
- Laboratory of Molecular Haematopoiesis and Stem Cell Biology, Department of Experimental and Clinical Medicine, University “Magna Græcia”, 88100 Catanzaro, Italy; (E.C.); (A.A.); (S.S.)
| | - Nicola Lombardo
- Otolaryngology Head and Neck Surgery, Department Medical and Surgical Sciences, University “Magna Græcia”, 88100 Catanzaro, Italy; (N.L.); (N.L.)
| | - Nadia Lobello
- Otolaryngology Head and Neck Surgery, Department Medical and Surgical Sciences, University “Magna Græcia”, 88100 Catanzaro, Italy; (N.L.); (N.L.)
| | - Annamaria Aloisio
- Laboratory of Molecular Haematopoiesis and Stem Cell Biology, Department of Experimental and Clinical Medicine, University “Magna Græcia”, 88100 Catanzaro, Italy; (E.C.); (A.A.); (S.S.)
| | - Teodoro Aragona
- Otolaryngology, A.O.U. Ospedali Riuniti, 60123 Ancona, Italy;
| | - Corrado Pelaia
- Department of Health Sciences, University “Magna Græcia” of Catanzaro, 88100 Catanzaro, Italy;
| | - Stefania Scicchitano
- Laboratory of Molecular Haematopoiesis and Stem Cell Biology, Department of Experimental and Clinical Medicine, University “Magna Græcia”, 88100 Catanzaro, Italy; (E.C.); (A.A.); (S.S.)
| | - Heather Mandy Bond
- Laboratory of Molecular Haematopoiesis and Stem Cell Biology, Department of Experimental and Clinical Medicine, University “Magna Græcia”, 88100 Catanzaro, Italy; (E.C.); (A.A.); (S.S.)
| | - Maria Mesuraca
- Laboratory of Molecular Haematopoiesis and Stem Cell Biology, Department of Experimental and Clinical Medicine, University “Magna Græcia”, 88100 Catanzaro, Italy; (E.C.); (A.A.); (S.S.)
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