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Yan Q, Liu Z, Chen Y, Zhang X, Zheng W, Liu X, Huang H, Liu Q, Jiang Y, Zhan S, Huang X. ITGAM-macrophage modulation as a potential strategy for treating neutrophilic Asthma: insights from bioinformatics analysis and in vivo experiments. Apoptosis 2024; 29:393-411. [PMID: 37950848 DOI: 10.1007/s10495-023-01914-5] [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] [Accepted: 10/27/2023] [Indexed: 11/13/2023]
Abstract
Identification of molecular biomarkers associated with neutrophilic asthma (NA) phenotype may inform the discovery of novel pathobiological mechanisms and the development of diagnostic markers. Three mRNA transcriptome datasets extracted from induced sputum of asthma patients with various inflammatory types were used to screen for macrophage-related molecular mechanisms and targets in NA. Furthermore, the predicted targets were also validated on an independent dataset (N = 3) and animal model (N = 5). A significant increase in total cells, neutrophils and macrophages was observed in bronchoalveolar lavage (BAL) fluid of NA mice induced by ovalbumin/freund's adjuvant, complete (OVA/CFA). And we also found elevated levels of neutrophil and macrophage infiltration in NA subtype in external datasets. NA mice had increased secretion of IgE, IL-1β, TNF-α and IL-6 in serum and BAL fluid. MPO, an enzyme present in neutrophils, was also highly expressed in NA mice. Then, weighted gene co-expression network analysis (WGCNA) identified 684 targets with the strongest correlation with NA, and we obtained 609 macrophage-related specific differentially expressed genes (DEGs) in NA by integrating macrophage-related genes. The top 10 genes with high degree values were obtained and their mRNA levels and diagnostic performance were then determined by RT-qPCR and receiver operator characteristic (ROC) analysis. Statistically significant correlations were found between macrophages and all key targets, with the strongest correlation between ITGAM and macrophages in NA. Double-Immunofluorescence staining further confirmed the co-localization of ITGAM and F4/80 in NA. ITGAM was identified as a critical target to distinguish NA from healthy/non-NA individuals, which may provide a novel avenue to further uncover the mechanisms and therapy of NA.
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Affiliation(s)
- Qian Yan
- The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
- Guangzhou University of Chinese Medicine, Guangzhou, China
- Lingnan Medical Research Center of Guangzhou, University of Chinese Medicine, Guangzhou, China
- Guangdong Provincial Clinical Research Academy of Chinese Medicine, Guangzhou, China
| | - Zixing Liu
- The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
- Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Yujing Chen
- Guangzhou University of Chinese Medicine, Guangzhou, China
- Haikou hospital of Chinese traditional medicine, Haikou, China
| | - Xinxin Zhang
- The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
- Guangzhou University of Chinese Medicine, Guangzhou, China
- Lingnan Medical Research Center of Guangzhou, University of Chinese Medicine, Guangzhou, China
- Guangdong Provincial Clinical Research Academy of Chinese Medicine, Guangzhou, China
| | - Wenjiang Zheng
- The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
- Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Xiaohong Liu
- The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Huiting Huang
- The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Qiong Liu
- The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Yong Jiang
- Shenzhen Hospital of Integrated Traditional Chinese and Western Medicine, Shenzhen, China.
| | - Shaofeng Zhan
- The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China.
| | - Xiufang Huang
- The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China.
- Guangzhou University of Chinese Medicine, Guangzhou, China.
- Lingnan Medical Research Center of Guangzhou, University of Chinese Medicine, Guangzhou, China.
- Guangdong Provincial Clinical Research Academy of Chinese Medicine, Guangzhou, China.
- Lingnan Medical Research Center of Guangzhou, University of Chinese Medicine, the First Affiliated Hospital of Guangzhou University of Chinese Medicine, 12 Airport Road, Guangzhou, 510405, People's Republic of China.
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Lajiness JD, Cook-Mills JM. Catching Our Breath: Updates on the Role of Dendritic Cell Subsets in Asthma. Adv Biol (Weinh) 2023; 7:e2200296. [PMID: 36755197 PMCID: PMC10293089 DOI: 10.1002/adbi.202200296] [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: 11/01/2022] [Revised: 01/04/2023] [Indexed: 02/10/2023]
Abstract
Dendritic cells (DCs), as potent antigen presenting cells, are known to play a central role in the pathophysiology of asthma. The understanding of DC biology has evolved over the years to include multiple subsets of DCs with distinct functions in the initiation and maintenance of asthma. Furthermore, asthma is increasingly recognized as a heterogeneous disease with potentially diverse underlying mechanisms. The goal of this review is to summarize the role of DCs and the various subsets therein in the pathophysiology of asthma and highlight some of the crucial animal models shaping the field today. Potential future avenues of investigation to address existing gaps in knowledge are discussed.
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Affiliation(s)
- Jacquelyn D Lajiness
- Department of Pediatrics, Division of Neonatology, Indiana University School of Medicine, 1030 West Michigan Street, Suite C 4600, Indianapolis, IN, 46202-5201, USA
| | - Joan M Cook-Mills
- Department of Pediatrics, Department of Microbiology and Immunology, Pediatric Pulmonary, Asthma, and Allergy Basic Research Program, Herman B Wells Center for Pediatric Research, Indiana University School of Medicine, 1044 W. Walnut Street, R4-202A, Indianapolis, IN, 46202, USA
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Li H, Ma L, Li W, Zheng B, Wang J, Chen S, Wang Y, Ge F, Qin B, Zheng X, Deng Y, Zeng R. Proline metabolism reprogramming of trained macrophages induced by early respiratory infection combined with allergen sensitization contributes to development of allergic asthma in childhood of mice. Front Immunol 2022; 13:977235. [PMID: 36211408 PMCID: PMC9533174 DOI: 10.3389/fimmu.2022.977235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Accepted: 09/02/2022] [Indexed: 11/13/2022] Open
Abstract
Background Infants with respiratory syncytial virus (RSV)-associated bronchiolitis are at increased risk of childhood asthma. Recent studies demonstrated that certain infections induce innate immune memory (also termed trained immunity), especially in macrophages, to respond more strongly to future stimuli with broad specificity, involving in human inflammatory diseases. Metabolic reprogramming increases the capacity of the innate immune cells to respond to a secondary stimulation, is a crucial step for the induction of trained immunity. We hypothesize that specific metabolic reprogramming of lung trained macrophages induced by neonatal respiratory infection is crucial for childhood allergic asthma. Objective To address the role of metabolic reprogramming in lung trained macrophages induced by respiratory virus infection in allergic asthma. Methods Neonatal mice were infected and sensitized by the natural rodent pathogen Pneumonia virus of mice (PVM), a mouse equivalent strain of human RSV, combined with ovalbumin (OVA). Lung CD11b+ macrophages in the memory phase were re-stimulated to investigate trained immunity and metabonomics. Adoptive transfer, metabolic inhibitor and restore experiments were used to explore the role of specific metabolic reprogramming in childhood allergic asthma. Results PVM infection combined with OVA sensitization in neonatal mice resulted in non-Th2 (Th1/Th17) type allergic asthma following OVA challenge in childhood of mice. Lung CD11b+ macrophages in the memory phage increased, and showed enhanced inflammatory responses following re-stimulation, suggesting trained macrophages. Adoptive transfer of the trained macrophages mediated the allergic asthma in childhood. The trained macrophages showed metabolic reprogramming after re-stimulation. Notably, proline biosynthesis remarkably increased. Inhibition of proline biosynthesis suppressed the development of the trained macrophages as well as the Th1/Th17 type allergic asthma, while supplement of proline recovered the trained macrophages as well as the allergic asthma. Conclusion Proline metabolism reprogramming of trained macrophages induced by early respiratory infection combined with allergen sensitization contributes to development of allergic asthma in childhood. Proline metabolism could be a well target for prevention of allergic asthma in childhood.
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Affiliation(s)
- Hanglin Li
- Department of Immunology, Hebei Medical University, Shijiazhuang, China
| | - Linyan Ma
- Department of Immunology, Hebei Medical University, Shijiazhuang, China
| | - Wenjian Li
- Department of Immunology, Hebei Medical University, Shijiazhuang, China
- Key Laboratory of Immune Mechanism and Intervention on Serious Disease in Hebei Province, Hebei Medical University, Shijiazhuang, China
| | - Boyang Zheng
- Department of Immunology, Hebei Medical University, Shijiazhuang, China
- The Fourth Affiliated Hospital of Hebei Medical University, Shijiazhuang, China
| | - Junhai Wang
- Department of Immunology, Hebei Medical University, Shijiazhuang, China
| | - Shunyan Chen
- Department of Immunology, Hebei Medical University, Shijiazhuang, China
| | - Yang Wang
- Department of Immunology, Hebei Medical University, Shijiazhuang, China
| | - Fei Ge
- Department of Immunology, Hebei Medical University, Shijiazhuang, China
| | - Beibei Qin
- Department of Immunology, Hebei Medical University, Shijiazhuang, China
- Clinical Lab, Hebei Provincial People’s Hospital, Shijiazhuang, China
| | - Xiaoqing Zheng
- Department of Immunology, Hebei Medical University, Shijiazhuang, China
- Key Laboratory of Immune Mechanism and Intervention on Serious Disease in Hebei Province, Hebei Medical University, Shijiazhuang, China
| | - Yuqing Deng
- Department of Immunology, Hebei Medical University, Shijiazhuang, China
- Key Laboratory of Immune Mechanism and Intervention on Serious Disease in Hebei Province, Hebei Medical University, Shijiazhuang, China
| | - Ruihong Zeng
- Department of Immunology, Hebei Medical University, Shijiazhuang, China
- Key Laboratory of Immune Mechanism and Intervention on Serious Disease in Hebei Province, Hebei Medical University, Shijiazhuang, China
- *Correspondence: Ruihong Zeng,
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