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Dessie EY, Ding L, Mersha TB. Integrative analysis identifies gene signatures mediating the effect of DNA methylation on asthma severity and lung function. Clin Epigenetics 2024; 16:15. [PMID: 38245772 PMCID: PMC10800055 DOI: 10.1186/s13148-023-01611-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Accepted: 12/02/2023] [Indexed: 01/22/2024] Open
Abstract
DNA methylation (DNAm) changes play a key role in regulating gene expression in asthma. To investigate the role of epigenetics and transcriptomics change in asthma, we used publicly available DNAm (asthmatics, n = 96 and controls, n = 46) and gene expression (asthmatics, n = 79 and controls, n = 39) data derived from bronchial epithelial cells (BECs). We performed differential methylation/expression and weighted co-methylation/co-expression network analyses to identify co-methylated and co-expressed modules associated with asthma severity and lung function. For subjects with both DNAm and gene expression data (asthmatics, n = 79 and controls, n = 39), machine-learning technique was used to prioritize CpGs and differentially expressed genes (DEGs) for asthma risk prediction, and mediation analysis was used to uncover DEGs that mediate the effect of DNAm on asthma severity and lung function in BECs. Finally, we validated CpGs and their associated DEGs and the asthma risk prediction model in airway epithelial cells (AECs) dataset. The asthma risk prediction model based on 18 CpGs and 28 DEGs showed high accuracy in both the discovery BEC dataset with area under the receiver operating characteristic curve (AUC) = 0.99 and the validation AEC dataset (AUC = 0.82). Genes in the three co-methylated and six co-expressed modules were enriched in multiple pathways including WNT/beta-catenin signaling and notch signaling. Moreover, we identified 35 CpGs correlated with DEGs in BECs, of which 17 CpGs including cg01975495 (SERPINE1), cg10528482 (SLC9A3), cg25477769 (HNF1A) and cg26639146 (CD9), cg17945560 (TINAGL1) and cg10290200 (FLNC) were replicated in AECs. These DEGs mediate the association between DNAm and asthma severity and lung function. Overall, our study investigated the role of DNAm and gene expression change in asthma and provided an insight into the mechanisms underlying the effects of DNA methylation on asthma, asthma severity and lung function.
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Affiliation(s)
- Eskezeia Y Dessie
- Division of Asthma Research, Department of Pediatrics, Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Lili Ding
- Division of Biostatistics and Epidemiology, Department of Pediatrics, Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Tesfaye B Mersha
- Division of Asthma Research, Department of Pediatrics, Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, OH, USA.
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Zhong Z, Huang X, Zhang S, Zheng S, Cheng X, Li R, Wu D, Mo L, Qu S. Blocking Notch signalling reverses miR-155-mediated inflammation in allergic rhinitis. Int Immunopharmacol 2023; 116:109832. [PMID: 36764280 DOI: 10.1016/j.intimp.2023.109832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2022] [Revised: 01/23/2023] [Accepted: 01/30/2023] [Indexed: 02/11/2023]
Abstract
Although recent studies have shown that the Notch signalling pathway induces the production of Th2-related immune factors, the exact mechanism through which Notch signalling exacerbates allergic rhinitis (AR) remains unknown. To investigate the roles of Notch in AR, serum, nasal mucosa and spleen samples were isolated from BALB/c mice. Paraffin sections were stained with haematoxylin and eosin (H&E) or periodic acid-Schiff (PAS) to assess inflammation. Flow cytometry was performed to detect group 2 innate lymphoid cells (ILC2s) in the serum samples, and cytokine levels were measured by enzyme-linked immunosorbent assays (ELISAs). The mRNA expression levels of the Notch signalling pathway components and miR-155 were measured by quantitative real-time PCR (qRT-PCR). In addition, human nasal epithelial cells (HNEpCs) were cultured to investigate the functional consequences of Notch pathway inhibition. The findings demonstrated that symptomatology and pathology were substantially altered, and AR model mice were established. In vivo stimulation with ovalbumin (OVA) significantly increased the Th2-type immune responses and the expression of OVA-sIgE, IL-4, GATA3, NF-κB and miR-155. However, the Notch signalling pathway was significantly deteriorated in AR, and this effect was accompanied by reduced Notch1, Notch2, RBPj and Hes1 levels. These effects were abrogated by gamma-secretase inhibitor IX (DAPT) treatment, and DAPT inhibited the wound healing and proliferation of HNEpCs in a dose-dependent manner. Therefore, our results suggest that blocking the Notch pathway may alleviate miR-155-mediated inflammation via the regulation of immune homeostasis in AR.
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Affiliation(s)
- Ziling Zhong
- Guangxi Academy of Medical Sciences, The People's Hospital of Guangxi Zhuang Autonomous Region, Department of Otolaryngology, Nanning, Guangxi, China; Guangxi University of Chinese Medicine, Nanning, Guangxi, China
| | - Xueying Huang
- Guangxi Academy of Medical Sciences, The People's Hospital of Guangxi Zhuang Autonomous Region, Department of Otolaryngology, Nanning, Guangxi, China
| | - Shaojie Zhang
- Guangxi Academy of Medical Sciences, The People's Hospital of Guangxi Zhuang Autonomous Region, Department of Otolaryngology, Nanning, Guangxi, China
| | - Shaochuan Zheng
- Guangxi Academy of Medical Sciences, The People's Hospital of Guangxi Zhuang Autonomous Region, Department of Otolaryngology, Nanning, Guangxi, China; Youjiang Medical University for Nationalities, Baize, Guangxi, China
| | - Xiqiao Cheng
- Guangxi Academy of Medical Sciences, The People's Hospital of Guangxi Zhuang Autonomous Region, Department of Otolaryngology, Nanning, Guangxi, China; Guangxi University of Chinese Medicine, Nanning, Guangxi, China
| | - Rongrong Li
- Guangxi Academy of Medical Sciences, The People's Hospital of Guangxi Zhuang Autonomous Region, Department of Otolaryngology, Nanning, Guangxi, China
| | - Di Wu
- Guangxi Academy of Medical Sciences, The People's Hospital of Guangxi Zhuang Autonomous Region, Department of Otolaryngology, Nanning, Guangxi, China; Youjiang Medical University for Nationalities, Baize, Guangxi, China
| | - Liping Mo
- Guangxi Academy of Medical Sciences, The People's Hospital of Guangxi Zhuang Autonomous Region, Department of Otolaryngology, Nanning, Guangxi, China
| | - Shenhong Qu
- Guangxi Academy of Medical Sciences, The People's Hospital of Guangxi Zhuang Autonomous Region, Department of Otolaryngology, Nanning, Guangxi, China.
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Liu P, Kang C, Zhang J, Liu Y, Liu J, Hu T, Zeng X, Qiu S. The role of dendritic cells in allergic diseases. Int Immunopharmacol 2022; 113:109449. [DOI: 10.1016/j.intimp.2022.109449] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 11/06/2022] [Accepted: 11/09/2022] [Indexed: 11/18/2022]
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Crosstalk between ILC2s and Th2 CD4+ T Cells in Lung Disease. J Immunol Res 2022; 2022:8871037. [PMID: 35592688 PMCID: PMC9113865 DOI: 10.1155/2022/8871037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Revised: 03/30/2022] [Accepted: 04/18/2022] [Indexed: 12/03/2022] Open
Abstract
Cytokine secretion, such as interleukin-4 (IL-4), IL-5, IL-9, IL-13, and amphiregulin (Areg), by type 2 innate lymphoid cells (ILC2s) is indispensable for homeostasis, remodeling/repairing tissue structure, inflammation, and tumor immunity. Often viewed as the innate cell surrogate of T helper type 2 (Th2) cells, ILC2s not only secrete the same type 2 cytokines, but are also inextricably related to CD4+T cells in terms of cell origin and regulatory factors, bridging between innate and adaptive immunity. ILC2s interact with CD4+T cells to play a leading role in a variety of diseases through secretory factors. Here, we review the latest progress on ILC2s and CD4+T cells in the lung, the close relationship between the two, and their relevance in the lung disease and immunity. This literature review aids future research in pulmonary type 2 immune diseases and guides innovative treatment approaches for these diseases.
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Zhang X, Hu X, Tian T, Pang W. The role of ICOS in allergic disease: Positive or Negative? Int Immunopharmacol 2021; 103:108394. [PMID: 34922247 DOI: 10.1016/j.intimp.2021.108394] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Revised: 11/15/2021] [Accepted: 11/19/2021] [Indexed: 01/09/2023]
Abstract
With the rapid increase in the incidence of allergic diseases, the mechanisms underlying the development of these diseases have received a great deal of attention, and this is particularly true in regard to the role of ICOS in allergic diseases. Current studies have revealed that ICOS affects the functional activity of multiple immune cells that modulate the adaptive immune system. Additionally, ICOS also plays a crucial role in mediating cellular immunity and coordinating the response of the entire immune system, and thus, it plays a role in allergic reactions. However, the ICOS/ICOS-ligand (ICOS-L) axis functions in a dual role during the development of multiple allergic diseases. In this review, we explore the role of ICOS/ICOSL in the context of different immune cells that function in allergic diseases, and we summarize recent advances in their contribution to these diseases.
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Affiliation(s)
- Xueyan Zhang
- Department of Otorhinolaryngology-Head and Neck Surgery, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Xianyang Hu
- Key Laboratory of Medical Molecular Virology (MOE/NHC/CAMS), Department of Medical Microbiology and Parasitology, School of Basic Medical Sciences, Shanghai Medical College of Fudan University, Shanghai, China
| | - Tengfei Tian
- Department of Otolaryngology-Head and Neck Surgery, Eye Ear Nose and Throat Hospital, Fudan University, Shanghai, China
| | - Wenhui Pang
- Department of Otorhinolaryngology-Head and Neck Surgery, The Affiliated Hospital of Qingdao University, Qingdao, China.
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Jiang M, Cai R, Wang J, Li Z, Xu D, Jing J, Zhang F, Li F, Ding J. ILC2 Cells Promote Th2 Cell Differentiation in AECOPD Through Activated Notch-GATA3 Signaling Pathway. Front Immunol 2021; 12:685400. [PMID: 34354706 PMCID: PMC8329850 DOI: 10.3389/fimmu.2021.685400] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Accepted: 05/25/2021] [Indexed: 12/11/2022] Open
Abstract
This study is to investigate the capacity of type 2 innate lymphoid cells (ILC2s) in regulating the Th2 type adaptive immune response of acute exacerbation of chronic obstructive pulmonary disease (AECOPD). The study enrolled healthy people, stable chronic obstructive pulmonary disease (COPD) patients, and AECOPD patients. Flow cytometry was used to detect Th2 and ILC2 cells in the peripheral blood. In addition, ILC2s from the peripheral blood of AECOPD patients were stimulated with PBS, IL-33, Jagged1, DAPT, IL-33+Jagged1, IL-33+DAPT, and IL-33+Jagged-1+DAP in vitro. The levels of cytokines in the culture supernatant were detected by ELISA and the culture supernatant was used to culture CD4 + T cells. The mRNA and protein levels of Notch1, hes1, GATA3, RORα, and NF-κB of ILC2s were detected by real-time PCR and Western blot. The proportion of Th2 and ILC2s was significantly increased in the peripheral blood of AECOPD patients, alone with the increased Notch1, hes1, and GATA3 mRNA levels. In vitro results showed that the mRNA and protein levels of Notch1, hes1, GATA3 and NF-κB were significantly increased after stimulation with Notch agonist, meanwhile, the level of type 2 cytokines were increased in the supernatant of cells stimulated with Notch agonist, and significantly promoted differentiation of Th2 cells in vitro. Disruption of Notch pathway weakened GATA3 expression and cytokine production, and ultimately affected the differentiation of Th2 cells. In conclusion, our results suggest that ILC2s can promote Th2 cell differentiation in AECOPD via activated Notch-GATA3 signal pathway.
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Affiliation(s)
- Min Jiang
- Xinjiang Laboratory of Respiratory Disease Research, Traditional Chinese Medicine Hospital Affiliated to Xinjiang Medical University, Urumqi, China
| | - Ren Cai
- Clinical Medical Research Institute, First Affiliated Hospital of Xinjiang Medical University, Urumqi, China
| | - Jing Wang
- Xinjiang Laboratory of Respiratory Disease Research, Traditional Chinese Medicine Hospital Affiliated to Xinjiang Medical University, Urumqi, China
| | - Zheng Li
- Xinjiang Laboratory of Respiratory Disease Research, Traditional Chinese Medicine Hospital Affiliated to Xinjiang Medical University, Urumqi, China
| | - Dan Xu
- Xinjiang Laboratory of Respiratory Disease Research, Traditional Chinese Medicine Hospital Affiliated to Xinjiang Medical University, Urumqi, China
| | - Jing Jing
- Xinjiang Laboratory of Respiratory Disease Research, Traditional Chinese Medicine Hospital Affiliated to Xinjiang Medical University, Urumqi, China
| | - Fengbo Zhang
- Department of Clinical Laboratory, First Affiliated Hospital of Xinjiang Medical University, Urumqi, China
| | - Fengsen Li
- Xinjiang Laboratory of Respiratory Disease Research, Traditional Chinese Medicine Hospital Affiliated to Xinjiang Medical University, Urumqi, China
| | - Jianbing Ding
- Department of Immunology, College of Basic Medicine, Xinjiang Medical University, Urumqi, China
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Vural S, Baumgartner M, Lichtner P, Eckstein G, Hariry H, Chen WC, Ruzicka T, Melnik B, Plewig G, Wagner M, Giehl KA. Investigation of gamma secretase gene complex mutations in German population with Hidradenitis suppurativa designate a complex polygenic heritage. J Eur Acad Dermatol Venereol 2021; 35:1386-1392. [PMID: 33559291 DOI: 10.1111/jdv.17163] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Accepted: 01/14/2021] [Indexed: 12/14/2022]
Abstract
BACKGROUND Hidradenitis suppurativa (HS) is a chronic inflammatory disease affecting apocrine gland-bearing skin in the axilla, groin and under the breasts. Mutations of the gamma secretase gene complex, which is essential in the activation of Notch signalling pathways, were shown in some families with HS and in a few sporadic cases. Although an imbalance in Notch signalling is implicated in the pathogenesis, the exact mechanism of HS development is yet unknown. OBJECTIVES We aim to investigate the genetic basis of HS by determining the presence of mutations of gamma secretase gene complex in a cohort of HS patients and by searching for a disease-causing pathogenic variant in a multi-generational HS family using parametric linkage analysis. METHODS Thirty-eight patients clinically diagnosed with HS were included in this study. All exons and exon-intron boundaries of the genes encoding gamma secretase complex consisting of six genes: APH1A, APH1B, PSENEN, NCSTN, PSEN1 and PSEN2 were sequenced by Sanger technique. Genetic mapping with parametric linkage analysis for the patients in the family was performed with eight affected and four healthy individuals. The logarithm of odds was calculated. RESULTS In a sporadic patient with early-onset, severe lesions in axilla and groin, a novel single-nucleotide deletion causing frameshift in exon 1 of the NCSTN gene was identified ((NM_015331.3): c.38delG, p.(Gly13Glufs*15)). The LOD score of 1.5 was never exceeded in any region of the genome, pointing towards intricate multi-genic inheritance pattern within the affected family. CONCLUSIONS The gamma secretase gene complex mutations were rare in our cohort (3.2%). Besides, our analysis indicates a possible complex multi-genic inheritance in a seemingly autosomal dominantly inherited large HS family. Genetics of both familial and sporadic HS may be complicated in most cases, and the role of other potential genes such as autoinflammatory and modifier genes as well as environmental factors may influence the pathogenesis.
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Affiliation(s)
- S Vural
- Department of Dermatology and Allergy, Ludwig-Maximilian-University of Munich, Munich, Germany.,Department of Dermatology and Venereology, Koç University School of Medicine, İstanbul, Turkey
| | - M Baumgartner
- Department of Dermatology and Allergy, Ludwig-Maximilian-University of Munich, Munich, Germany
| | - P Lichtner
- Institute of Human Genetics, Technical University Munich, Neuherberg, Germany.,Institute of Human Genetics, Helmholtz Zentrum München, Neuherberg, Germany
| | - G Eckstein
- Institute of Human Genetics, Technical University Munich, Neuherberg, Germany.,Institute of Human Genetics, Helmholtz Zentrum München, Neuherberg, Germany
| | - H Hariry
- Gemeinschaftpraxis, Gütersloh, Germany
| | - W C Chen
- Department of Dermatology and Allergy, Technical University of Munich, Munich, Germany
| | - T Ruzicka
- Department of Dermatology and Allergy, Ludwig-Maximilian-University of Munich, Munich, Germany
| | - B Melnik
- Gemeinschaftpraxis, Gütersloh, Germany.,Department of Dermatology, Environmental Medicine and Health Theory, University of Osnabrück, Osnabrück, Germany
| | - G Plewig
- Department of Dermatology and Allergy, Ludwig-Maximilian-University of Munich, Munich, Germany
| | - M Wagner
- Institute of Human Genetics, Technical University Munich, Neuherberg, Germany.,Institute of Human Genetics, Helmholtz Zentrum München, Neuherberg, Germany
| | - K A Giehl
- Department of Dermatology and Allergy, Ludwig-Maximilian-University of Munich, Munich, Germany
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Zhu H, Wang K, Yang L, Xu Q, Ren F, Liu X. [ Yanghe Pingchuan granule promotes BMSCs homing in asthmatic rats by upregulating miR-139-5p and downregulating Notch1/Hes1 pathway]. NAN FANG YI KE DA XUE XUE BAO = JOURNAL OF SOUTHERN MEDICAL UNIVERSITY 2021; 40:1703-1711. [PMID: 33380402 DOI: 10.12122/j.issn.1673-4254.2020.12.02] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
OBJECTIVE To observe the effect of Yanghe Pingchuan (YHPC) granule on miR-139-5p, Notch1/Hes1 pathway and homing of bone marrow-derived mesenchymal stem cells (BMSCs) in asthmatic rats. METHODS Fifty SD rats were randomized divided into normal control (NC) group, asthmatic model group, BMSCs transplantation group, BMSCs + dexamethasone (0.0625 mg/kg daily) group, and BMSCs+YHPC granule (3.5 g/kg daily) group. In all but the normal control group, asthmatic rat models were established by ovalbumin challenge, and BMSCs (1×106/mL) transplantation via the tail vein was performed in the latter 3 groups on last day of ovalbumin challenge. In all the groups, lung pathologies of the rats were evaluated using HE staining after the treatments. Flow cytometry was employed to detect pulmonary expression of CXCR4 protein, and ELISA was used to determine the expressions of interferon-γ (IFN-γ) and interleukin-4 (IL-4) in the lung tissue. The expressions of CXCR4, Notch1 and Hes1 in bronchial epithelial cells was examined using immunofluorescence assay. RT-PCR was used to detect the expressions of miR-139-5p, Notch1, Jagged1, RBP-J and Hes1 mRNAs, and the protein expressions of Notch1, Jagged1 and Hes1 were detected with Western blotting. RESULTS Compared with the normal control rats, the asthmatic rats exhibited significantly increased expressions of CXCR4, IL-4, Notch1, Jagged1, RBP-J, and Hes1 mRNA and Notch1, Jagged1, and Hes1 proteins and lowered expressions of INF-γ mRNA and miR-139-5p in the lung tissues (P < 0.05 or 0.01). Compared with those in the asthmatic model group, the mRNA expressions of CXCR4, IFN-γ, and miR-139-5p increased and the expressions of IL-4, Notch1, Jagged1, RBP-J, and Hes1 mRNA and Notch1, Jagged1, and Hes1 proteins decreased significantly in the 3 groups with BMSCs transplantation (P < 0.05 or 0.01). The rats in BMSCs+YHPC granule group showed significantly higher CXCR4, IFN-γ, and miR-139-5p mRNA expressions and lower IL-4 and Notch1 mRNA expressions than those in BMSCs transplantation group (P < 0.05). CONCLUSIONS YHPC granule can enhance the inhibitory effect of BMSCs homing on Th2 inflammatory response in asthmatic rats by up-regulating miR-139-5p and down-regulating Notch1/Hes1 pathway.
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Affiliation(s)
- Huizhi Zhu
- Department of Respiratory Medicine, First Affiliated Hospital of Anhui University of Chinese Medicine, Anhui University of Chinese Medicine, Hefei 230031, China
| | - Kun Wang
- Graduate School, Anhui University of Chinese Medicine, Hefei 230031, China
| | - Lei Yang
- Graduate School, Anhui University of Chinese Medicine, Hefei 230031, China
| | - Qingwen Xu
- Graduate School, Anhui University of Chinese Medicine, Hefei 230031, China
| | - Fengchun Ren
- Graduate School, Anhui University of Chinese Medicine, Hefei 230031, China
| | - Xiangguo Liu
- College of Integrated Chinese and Western Medicine, Anhui University of Chinese Medicine, Hefei 230031, China
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