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Chang Q, Zhu Y, Zhou G, Liang H, Li D, Cheng J, Pan P, Zhang Y. Vitamin D status, sleep patterns, genetic susceptibility, and the risk of incident adult-onset asthma: a large prospective cohort study. Front Nutr 2023; 10:1222499. [PMID: 37457981 PMCID: PMC10349527 DOI: 10.3389/fnut.2023.1222499] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2023] [Accepted: 06/09/2023] [Indexed: 07/18/2023] Open
Abstract
Introduction Vitamin D has been known to be associated with asthma, particularly in children, while the evidence among adults is limited and inconclusive. This study aimed to investigate the association between serum, vitamin D concentrations, and the incidence of adult-onset asthma and also the modified effect caused by sleep patterns and genetic risks. Methods A prospective cohort study with 307,872 participants aged between 37 and 73 years was conducted based on the UK Biobank, with a median follow-up of 12 years. The Cox proportional hazard model was applied to evaluate the association between vitamin D status and incident adult-onset asthma, and the modified effect was investigated by conducting stratified analysis according to sleep pattern score and genetic risk score, and subgroup analyses were performed by sex, age, BMI, and smoking status as well. Results Individuals with optimal vitamin D concentration were associated with 11.1% reduced risk of incident asthma compared to those participants with deficient vitamin D (HR = 0.889; 95% CI: 0.820-0.964; p = 0.005). Moreover, stratification analysis demonstrated that the protective effect of vitamin D on asthma risk was modified by sleep patterns or genetic susceptibility, with the strongest protective effect being observed in the subpopulation with a moderate sleep pattern (HR = 0.883; 95% CI: 0.797-0.977; p = 0.016) and a moderate genetic risk (HR = 0.817; 95% CI: 0.711-0.938; p = 0.004). In subgroup analyses, the protective effect of optimal vitamin D levels was only significant among men, individuals younger than 60 years of age, overweight individuals, and current or previous smokers. Conclusion Increased serum vitamin D levels were associated with a lower risk of incident adult-onset asthma, and this association was modified by sleep patterns and genetic predisposition to some extent.
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Affiliation(s)
- Qinyu Chang
- Center of Respiratory Medicine, Xiangya Hospital, Central South University, Changsha, Hunan, China
- National Key Clinical Specialty, Branch of National Clinical Research Center for Respiratory Disease, Xiangya Hospital, Central South University, Changsha, China
- Hunan Engineering Research Center for Intelligent Diagnosis and Treatment of Respiratory Disease, Changsha, Hunan, China
| | - Yiqun Zhu
- Center of Respiratory Medicine, Xiangya Hospital, Central South University, Changsha, Hunan, China
- National Key Clinical Specialty, Branch of National Clinical Research Center for Respiratory Disease, Xiangya Hospital, Central South University, Changsha, China
- Hunan Engineering Research Center for Intelligent Diagnosis and Treatment of Respiratory Disease, Changsha, Hunan, China
| | - Guowei Zhou
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Huaying Liang
- Center of Respiratory Medicine, Xiangya Hospital, Central South University, Changsha, Hunan, China
- National Key Clinical Specialty, Branch of National Clinical Research Center for Respiratory Disease, Xiangya Hospital, Central South University, Changsha, China
- Hunan Engineering Research Center for Intelligent Diagnosis and Treatment of Respiratory Disease, Changsha, Hunan, China
| | - Dianwu Li
- Center of Respiratory Medicine, Xiangya Hospital, Central South University, Changsha, Hunan, China
- National Key Clinical Specialty, Branch of National Clinical Research Center for Respiratory Disease, Xiangya Hospital, Central South University, Changsha, China
- Hunan Engineering Research Center for Intelligent Diagnosis and Treatment of Respiratory Disease, Changsha, Hunan, China
| | - Jun Cheng
- Department of Spine Surgery, The Third Xiangya Hospital, Central South University, Changsha, Hunan, China
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Pinhua Pan
- Center of Respiratory Medicine, Xiangya Hospital, Central South University, Changsha, Hunan, China
- National Key Clinical Specialty, Branch of National Clinical Research Center for Respiratory Disease, Xiangya Hospital, Central South University, Changsha, China
- Hunan Engineering Research Center for Intelligent Diagnosis and Treatment of Respiratory Disease, Changsha, Hunan, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Yan Zhang
- Center of Respiratory Medicine, Xiangya Hospital, Central South University, Changsha, Hunan, China
- National Key Clinical Specialty, Branch of National Clinical Research Center for Respiratory Disease, Xiangya Hospital, Central South University, Changsha, China
- Hunan Engineering Research Center for Intelligent Diagnosis and Treatment of Respiratory Disease, Changsha, Hunan, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
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Li Q, Sun J, Cao Y, Liu B, Zhao Z, Hu L, Zhang H, Kong Q, Wu J, Dong J. Icaritin inhibited cigarette smoke extract-induced CD8 + T cell chemotaxis enhancement by targeting the CXCL10/CXCR3 axis and TGF-β/Smad2 signaling. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2022; 96:153907. [PMID: 35026517 DOI: 10.1016/j.phymed.2021.153907] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Revised: 12/05/2021] [Accepted: 12/21/2021] [Indexed: 06/14/2023]
Abstract
BACKGROUND Chronic obstructive pulmonary disease (COPD) is a disabling/fatal disease characterized by progressive pulmonary function decline, and there are currently few drugs that can effectively reverse the decline in lung function; therefore, it is necessary to find novel drug targets. CD8+ T cells might be a new therapeutic target for alleviating lung tissue destruction and improving pulmonary function in COPD. The CXCL10/CXCR3 axis is a pivotal chemotactic axis involved in the abnormal infiltration of CD8+ T cells into the lung tissue of COPD; thus, inhibition of this axis might be a potential method to suppress CD8+ T cell-mediated lung tissue destruction in COPD. However, few drugs have been reported to target CD8+ T cells and the CXCL10/CXCR3 axis. Icaritin (ICT), one of the major components of Epimedii Folium, has been reported to have antioxidative effects in a COPD model in vitro. Whether ICT also has effects on CD8+ T cells and the CXCL10/CXCR3 axis in COPD has never been investigated. PURPOSE This study aimed to investigate the effects of ICT on CD8+ T cell chemotaxis and the CXCL10/CXCR3 axis in interferon (IFN)-γ + cigarette smoke extract (CSE)-stimulated THP-1-derived macrophages, which simulated the pulmonary microenvironment of COPD, and then to determine the mechanisms. METHODS The effects of ICT on the expression and secretion of CXCL9, CXCL10, and CXCL11 in THP-1-derived macrophages were measured by qRT-PCR and ELISA, and the effects of the supernatant of THP-1-derived macrophages treated with or without ICT on CD8+ T cell chemotaxis were also evaluated. Subsequently, the effects of ICT on the apoptosis and proliferation of CD8+ T cells were also assessed by EdU-488 assays and Annexin V/PI staining, respectively. Moreover, the mechanisms by which ICT inhibits the CXCL10/CXCR3 axis were investigated by RNA sequencing (RNA-seq) and KEGG pathway enrichment analysis. RESULTS The present study showed that ICT (5 μM) significantly suppressed the expression and secretion of CXCL9, CXCL10, and CXCL11 in THP-1-derived macrophages after stimulation with IFN-γ + CSE and indirectly inhibited CD8+ T cell chemotaxis by reducing the secretion of the above chemokines. In addition, this study found that ICT had no significant effect on the proliferation of CD8+ T cells, and neither led to apoptosis. The results of the RNA-seq analysis illustrated that the transforming growth factor (TGF)-β signaling pathway was significantly downregulated after ICT intervention, and subsequent qRT-PCR and western blotting showed that ICT could significantly downregulate the TGF-β-Smad2 signaling pathway. CONCLUSIONS ICT reduced CD8+ T cell chemotaxis by inhibiting the CXCL10/CXCR3 axis, and these effects might be achieved by suppressing the TGF-β-Smad2 signaling pathway.
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Affiliation(s)
- Qiuping Li
- Department of Integrative Medicine, Huashan Hospital, Fudan University, Shanghai 200040, China; Guangdong Provincial Geriatrics Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, China
| | - Jing Sun
- Department of Integrative Medicine, Huashan Hospital, Fudan University, Shanghai 200040, China; Institutes of Integrative Medicine, Fudan University, Shanghai 200040, China
| | - Yuxue Cao
- Department of Integrative Medicine, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - Baojun Liu
- Department of Integrative Medicine, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - Zhengxiao Zhao
- Department of Integrative Medicine, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - Lingli Hu
- Department of Integrative Medicine, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - Hu Zhang
- Department of Integrative Medicine, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - Qing Kong
- Department of Integrative Medicine, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - Jinfeng Wu
- Department of Integrative Medicine, Huashan Hospital, Fudan University, Shanghai 200040, China; Department of Dermatology, Huashan Hospital, Fudan University, Shanghai 200040, China.
| | - Jingcheng Dong
- Department of Integrative Medicine, Huashan Hospital, Fudan University, Shanghai 200040, China; Institutes of Integrative Medicine, Fudan University, Shanghai 200040, China.
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