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Wang J, Li K, Hao D, Li X, Zhu Y, Yu H, Chen H. Pulmonary fibrosis: pathogenesis and therapeutic strategies. MedComm (Beijing) 2024; 5:e744. [PMID: 39314887 PMCID: PMC11417429 DOI: 10.1002/mco2.744] [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: 02/18/2024] [Revised: 08/31/2024] [Accepted: 09/02/2024] [Indexed: 09/25/2024] Open
Abstract
Pulmonary fibrosis (PF) is a chronic and progressive lung disease characterized by extensive alterations of cellular fate and function and excessive accumulation of extracellular matrix, leading to lung tissue scarring and impaired respiratory function. Although our understanding of its pathogenesis has increased, effective treatments remain scarce, and fibrotic progression is a major cause of mortality. Recent research has identified various etiological factors, including genetic predispositions, environmental exposures, and lifestyle factors, which contribute to the onset and progression of PF. Nonetheless, the precise mechanisms by which these factors interact to drive fibrosis are not yet fully elucidated. This review thoroughly examines the diverse etiological factors, cellular and molecular mechanisms, and key signaling pathways involved in PF, such as TGF-β, WNT/β-catenin, and PI3K/Akt/mTOR. It also discusses current therapeutic strategies, including antifibrotic agents like pirfenidone and nintedanib, and explores emerging treatments targeting fibrosis and cellular senescence. Emphasizing the need for omni-target approaches to overcome the limitations of current therapies, this review integrates recent findings to enhance our understanding of PF and contribute to the development of more effective prevention and management strategies, ultimately improving patient outcomes.
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Affiliation(s)
- Jianhai Wang
- Department of Respiratory MedicineHaihe HospitalTianjin UniversityTianjinChina
- Department of TuberculosisHaihe HospitalTianjin UniversityTianjinChina
- Key Research Laboratory for Infectious Disease Prevention for State Administration of Traditional Chinese MedicineTianjin Institute of Respiratory DiseasesTianjinChina
- Tianjin Key Laboratory of Lung Regenerative Medicine, Haihe HospitalTianjin UniversityTianjinChina
| | - Kuan Li
- Department of Respiratory MedicineHaihe HospitalTianjin UniversityTianjinChina
- Department of TuberculosisHaihe HospitalTianjin UniversityTianjinChina
- Tianjin Key Laboratory of Lung Regenerative Medicine, Haihe HospitalTianjin UniversityTianjinChina
| | - De Hao
- Department of Respiratory MedicineHaihe HospitalTianjin UniversityTianjinChina
| | - Xue Li
- Department of Respiratory MedicineHaihe HospitalTianjin UniversityTianjinChina
- Department of TuberculosisHaihe HospitalTianjin UniversityTianjinChina
- Tianjin Key Laboratory of Lung Regenerative Medicine, Haihe HospitalTianjin UniversityTianjinChina
| | - Yu Zhu
- Department of Clinical LaboratoryNankai University Affiliated Third Central HospitalTianjinChina
- Department of Clinical LaboratoryThe Third Central Hospital of TianjinTianjin Key Laboratory of Extracorporeal Life Support for Critical DiseasesArtificial Cell Engineering Technology Research Center of TianjinTianjin Institute of Hepatobiliary DiseaseTianjinChina
| | - Hongzhi Yu
- Tianjin Key Laboratory of Lung Regenerative Medicine, Haihe HospitalTianjin UniversityTianjinChina
| | - Huaiyong Chen
- Department of Respiratory MedicineHaihe HospitalTianjin UniversityTianjinChina
- Department of TuberculosisHaihe HospitalTianjin UniversityTianjinChina
- Key Research Laboratory for Infectious Disease Prevention for State Administration of Traditional Chinese MedicineTianjin Institute of Respiratory DiseasesTianjinChina
- Tianjin Key Laboratory of Lung Regenerative Medicine, Haihe HospitalTianjin UniversityTianjinChina
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2
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Wu WW. Association of naples prognostic score and lung health: A population-based study. Respir Med 2024; 232:107751. [PMID: 39089390 DOI: 10.1016/j.rmed.2024.107751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/19/2024] [Revised: 06/22/2024] [Accepted: 07/29/2024] [Indexed: 08/04/2024]
Abstract
BACKGROUND The Naples Prognostic Score (NPS) is a novel indicator of inflammatory and nutritional status, but its relationship to lung health is unknown. OBJECTIVE To evaluate the relationship of NPS to lung health problems. METHODS A total of 15,600 participants aged 20 years or older with an available assessment of chronic lung diseases were enrolled from the National Health and Nutrition Examination Survey 2007-2012. The NPS was calculated based on serum albumin, total cholesterol, neutrophil-to-lymphocyte ratio, and lymphocyte-to-monocyte ratio. Associations of NPS with chronic lung disease (diagnosed asthma, chronic bronchitis, and emphysema), respiratory symptoms (cough, phlegm production, wheeze, and exertional dyspnea), and spirometric measurements (FEV1, FVC, and obstructive or restrictive spirometry pattern) were evaluated. Kaplan-Meier survival analysis and multiple Cox regressions were used to assess the significance of NPS in relation to all-cause mortality and chronic lower respiratory diseases mortality in participants. Furthermore, to comprehensively assess the association between NSP and chronic lower respiratory diseases mortality, Fine-Gray subdistribution hazards model was performed to analyze non-chronic lower respiratory diseases mortality as a competitive risk. RESULTS People with a higher NPS score were associated with greater odds of asthma, chronic bronchitis, respiratory symptoms (including phlegm production, wheeze, and exertional dyspnea), and a greater risk of obstructive and restrictive spirometry. A higher NPS score was significantly associated with decreased FEV1 and FVC in both overall participants and those with lung health problems. Longitudinally, we found that those in the category with highest NPS were at greater risk of all-cause mortality and chronic lower respiratory diseases mortality in those with chronic lung disease, and respiratory symptoms. CONCLUSIONS An elevated NPS is associated with a host of adverse pulmonary outcomes. Prospective studies to define NPS as a biomarker for impaired lung health are warranted.
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Affiliation(s)
- Wen Wen Wu
- Department of Respiratory and Critical Care Medicine, Clinical Research Center for Respiratory Disease, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China; West China School of Medicine, Sichuan University, Chengdu, China.
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3
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Li N, Tan G, Xie Z, Chen W, Yang Z, Wang Z, Liu S, He M. Distinct enterotypes and dysbiosis: unraveling gut microbiota in pulmonary and critical care medicine inpatients. Respir Res 2024; 25:304. [PMID: 39127664 DOI: 10.1186/s12931-024-02943-7] [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: 04/12/2024] [Accepted: 08/06/2024] [Indexed: 08/12/2024] Open
Abstract
BACKGROUND The gut-lung axis, pivotal for respiratory health, is inadequately explored in pulmonary and critical care medicine (PCCM) inpatients. METHODS Examining PCCM inpatients from three medical university-affiliated hospitals, we conducted 16S ribosomal RNA sequencing on stool samples (inpatients, n = 374; healthy controls, n = 105). We conducted statistical analyses to examine the gut microbiota composition in PCCM inpatients, comparing it to that of healthy controls. Additionally, we explored the associations between gut microbiota composition and various clinical factors, including age, white blood cell count, neutrophil count, platelet count, albumin level, hemoglobin level, length of hospital stay, and medical costs. RESULTS PCCM inpatients exhibited lower gut microbiota diversity than healthy controls. Principal Coordinates Analysis revealed marked overall microbiota structure differences. Four enterotypes, including the exclusive Enterococcaceae enterotype in inpatients, were identified. Although no distinctions were found at the phylum level, 15 bacterial families exhibited varying abundances. Specifically, the inpatient population from PCCM showed a significantly higher abundance of Enterococcaceae, Lactobacillaceae, Erysipelatoclostridiaceae, Clostridiaceae, and Tannerellaceae. Using random forest analyses, we calculated the areas under the receiver operating characteristic curves (AUCs) to be 0.75 (95% CIs 0.69-0.80) for distinguishing healthy individuals from inpatients. The four most abundant genera retained in the classifier were Blautia, Subdoligranulum, Enterococcus, and Klebsiella. CONCLUSIONS Evidence of gut microbiota dysbiosis in PCCM inpatients underscores the gut-lung axis's significance, promising further avenues in respiratory health research.
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Affiliation(s)
- Naijian Li
- Department of Allergy and Clinical Immunology, State Key Laboratory of Respiratory Disease, National Center for Respiratory Medicine, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital, Guangzhou Medical University, Guangzhou, People's Republic of China
- Johns Hopkins Asthma & Allergy Center, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Guiyan Tan
- Department of Respiratory and Critical Care Medicine, The First People's Hospital of Foshan, Foshan, People's Republic of China
| | - Zhiling Xie
- Department of Pulmonary and Critical Care Medicine, Zhongshan City People's Hospital, Zhongshan, People's Republic of China
| | - Weixin Chen
- Department of Chinese and Western Medicine in Clinical Medicine, The Clinical School of Chinese and Western Medicine, Guangzhou Medical University, Guangzhou, People's Republic of China
| | - Zhaowei Yang
- Department of Allergy and Clinical Immunology, State Key Laboratory of Respiratory Disease, National Center for Respiratory Medicine, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital, Guangzhou Medical University, Guangzhou, People's Republic of China
| | - Zhang Wang
- Biomedical Research Center, Institute of Ecological Sciences, School of Life Sciences, State Key Laboratory of Respiratory Disease, South China Normal University, Guangzhou, People's Republic of China
| | - Sha Liu
- Department of Pulmonary and Critical Care Medicine, The Second Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, People's Republic of China.
| | - Mengzhang He
- Department of Pulmonary and Critical Care Medicine, The Second Affiliated Hospital, Guangzhou Medical University, Guangzhou, People's Republic of China.
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Wang X, Zhang C, Su J, Ren S, Wang X, Zhang Y, Yuan Z, He X, Wu X, Li M, Du F, Chen Y, Deng S, Zhao Y, Wang X, Sun Y, Shen J, Ji H, Hou Y, Xiao Z. Rejuvenation Strategy for Inducing and Enhancing Autoimmune Response to Eliminate Senescent Cells. Aging Dis 2024:AD.2024.0579. [PMID: 39122450 DOI: 10.14336/ad.2024.0579] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2024] [Accepted: 07/17/2024] [Indexed: 08/12/2024] Open
Abstract
The process of aging, which involves progressive changes in the body over time, is closely associated with the development of age-related diseases. Cellular senescence is a pivotal hallmark and mechanism of the aging process. The accumulation of senescent cells can significantly contribute to the onset of age-related diseases, thereby compromising overall health. Conversely, the elimination of senescent cells enhances the body's regenerative and reparative capacity, thereby retarding the aging process. Here, we present a brief overview of 12 Hallmarks of aging and subsequently emphasize the potential of immune checkpoint blockade, innate immune cell therapy (including T cells, iNKT cells, macrophages, and NK cells), as well as CAR-T cell therapy for inducing and augmenting immune responses aimed at eliminating senescent cells. In addition to CAR-T cells, we also explore the possibility of engineered immune cells such as CAR-NK and CAR-M cells to eliminate senescent cells. In summary, immunotherapy, as an emerging strategy for the treatment of aging, offers new prospects for age-related research.
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Affiliation(s)
- Xingyue Wang
- Laboratory of Molecular Pharmacology, Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, China
| | - Chengyu Zhang
- Laboratory of Molecular Pharmacology, Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, China
| | - Jiahong Su
- Laboratory of Molecular Pharmacology, Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, China
| | - Siqi Ren
- Laboratory of Molecular Pharmacology, Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, China
| | - Xiang Wang
- Laboratory of Molecular Pharmacology, Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, China
| | - Yinping Zhang
- Laboratory of Molecular Pharmacology, Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, China
| | - Zijun Yuan
- Laboratory of Molecular Pharmacology, Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, China
| | - Xinyu He
- Laboratory of Molecular Pharmacology, Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, China
| | - Xu Wu
- Laboratory of Molecular Pharmacology, Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, China
- Cell Therapy &;amp Cell Drugs of Luzhou Key Laboratory, Luzhou, Sichuan, China
- South Sichuan Institute of Translational Medicine, Luzhou, Sichuan, China
| | - Mingxing Li
- Laboratory of Molecular Pharmacology, Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, China
- Cell Therapy &;amp Cell Drugs of Luzhou Key Laboratory, Luzhou, Sichuan, China
- South Sichuan Institute of Translational Medicine, Luzhou, Sichuan, China
| | - Fukuan Du
- Laboratory of Molecular Pharmacology, Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, China
- Cell Therapy &;amp Cell Drugs of Luzhou Key Laboratory, Luzhou, Sichuan, China
- South Sichuan Institute of Translational Medicine, Luzhou, Sichuan, China
| | - Yu Chen
- Laboratory of Molecular Pharmacology, Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, China
- Cell Therapy &;amp Cell Drugs of Luzhou Key Laboratory, Luzhou, Sichuan, China
- South Sichuan Institute of Translational Medicine, Luzhou, Sichuan, China
| | - Shuai Deng
- Laboratory of Molecular Pharmacology, Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, China
- Cell Therapy &;amp Cell Drugs of Luzhou Key Laboratory, Luzhou, Sichuan, China
- South Sichuan Institute of Translational Medicine, Luzhou, Sichuan, China
| | - Yueshui Zhao
- Laboratory of Molecular Pharmacology, Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, China
- Cell Therapy &;amp Cell Drugs of Luzhou Key Laboratory, Luzhou, Sichuan, China
- South Sichuan Institute of Translational Medicine, Luzhou, Sichuan, China
| | - Xiaodong Wang
- Department of Hepatobiliary Disease, The Affiliated Traditional Chinese Medicine Hospital, Southwest Medical University, Luzhou, Sichuan 646000, China
| | - Yuhong Sun
- Laboratory of Molecular Pharmacology, Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, China
| | - Jing Shen
- Laboratory of Molecular Pharmacology, Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, China
- Cell Therapy &;amp Cell Drugs of Luzhou Key Laboratory, Luzhou, Sichuan, China
- South Sichuan Institute of Translational Medicine, Luzhou, Sichuan, China
| | - Huijiao Ji
- Laboratory of Molecular Pharmacology, Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, China
| | - Yunqing Hou
- LongmaTan District People's Hospital of Luzhou City, Luzhou 646600, China
| | - Zhangang Xiao
- Laboratory of Molecular Pharmacology, Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, China
- Cell Therapy &;amp Cell Drugs of Luzhou Key Laboratory, Luzhou, Sichuan, China
- South Sichuan Institute of Translational Medicine, Luzhou, Sichuan, China
- Department of Pharmacology, School of Pharmacy, Sichuan College of Traditional Chinese Medicine, Mianyang 621000, China
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Shi G, Yue L, Tang Z, Wang Y, Hu X, Tong Y. Serum growth differentiation factor 15 as a biomarker for malnutrition in patients with acute exacerbation of chronic obstructive pulmonary disease. Front Nutr 2024; 11:1404063. [PMID: 39050134 PMCID: PMC11267996 DOI: 10.3389/fnut.2024.1404063] [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: 03/20/2024] [Accepted: 06/28/2024] [Indexed: 07/27/2024] Open
Abstract
Background Chronic obstructive pulmonary disease (COPD) is a common respiratory disease that often coexists with malnutrition during acute exacerbation (AECOPD) and significantly affects the prognosis. Previous studies have shown that growth differentiation factor 15 (GDF15) levels promote appetite suppression, weight loss, and muscle weakness, and are markedly high in peripheral blood following inflammatory stimulation. However, it is still unknown whether serum GDF15 levels can be used to predict malnutrition in patients with AECOPD. Methods A total of 142 patients admitted to the Department of Respiratory Medicine at Anshun People's Hospital between December 2022 and August 2023 were selected for this study. The participants were divided into two groups: malnutrition group (n = 44) and non-malnutrition group (n = 98) based on a body mass index (BMI) < 18.5 kg/m2, according to the Global Leadership Initiative on Malnutrition (GLIM) criteria. Serum GDF15 levels were measured using the enzyme-linked immunosorbent assay (ELISA) and compared between the two groups. Spearman correlation analysis was used to examine the association between serum GDF15 levels, baseline data, and clinical indicators. Binary logistic regression was used to identify the independent risk factors for AECOPD combined with malnutrition. The predictive value of serum GDF15, albumin (ALB), and a combination of these was evaluated to identify malnutrition in patients with AECOPD using a receiver operating characteristic (ROC) curve. Results Serum GDF15 levels in patients with malnutrition and AECOPD were significantly higher than those in patients without malnutrition, whereas the serum ALB levels were significantly lower than those in patients without malnutrition (p < 0.001). Moreover, serum GDF15 levels were negatively correlated with BMI (r = -0.562, p < 0.001), mid-arm circumference (r = -0.505, p < 0.001), calf circumference (r = -0.490, p < 0.001), total protein (r = -0.486, p < 0.001), ALB (r = -0.445, p < 0.001), and prognostic nutritional index (r = -0.276, p = 0.001), and positively correlated with C-reactive protein (r = 0.318, p < 0.001), COPD assessment test score (r = 0.286, p = 0.001), modified medical research council classification (r = 0.310, p < 0.001), and global initiative for chronic obstructive pulmonary disease grade (r = 0.177, p = 0.035). Furthermore, serum GDF15 levels were an independent risk factor for malnutrition in patients with AECOPD (OR = 1.010, 95% CI, 1.003∼1.016). The optimal cut-off value of serum GDF15 level was 1,092.885 pg/mL, with a sensitivity of 65.90% and a specificity of 89.80%, while the serum ALB level was 36.15 g/L, with a sensitivity of 86.40% and a specificity of 65.00%, as well as a combined sensitivity of 84.10% and a specificity of 73.90%. Serum GDF15 and serum ALB levels had a good predictive ability (AUC = 0.856, AUC = 0.887), and the ROC revealed a greater combined prediction value for the two (AUC = 0.935). Conclusion Serum GDF15 levels could be used as a potential biomarker in the prediction of malnutrition in patients with AECOPD, offering a guidance for future clinical evaluation of malnutrition.
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Affiliation(s)
- Guifen Shi
- Department of Respiratory and Critical Care Medicine, The Affiliated Hospital of Guizhou Medical University, Guiyang, China
| | - Longfei Yue
- Department of General Medicine, The Anshun People’s Hospital, Anshun, China
| | - Zhengying Tang
- Department of Respiratory and Critical Care Medicine, The Affiliated Hospital of Guizhou Medical University, Guiyang, China
| | - Yingling Wang
- Department of Respiratory and Critical Care Medicine, The Affiliated Hospital of Guizhou Medical University, Guiyang, China
| | - Xiwei Hu
- Department of Respiratory and Critical Care Medicine, The Affiliated Hospital of Guizhou Medical University, Guiyang, China
| | - Yufeng Tong
- Department of Respiratory and Critical Care Medicine, The Non-directly Affiliated Anshun Central Hospital, Guizhou Medical University, Anshun, China
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He S, Tian J, Zang J, Long L, Liu P, Zhang Y, Xiao J. Implications of intestinal microecology and immune function alterations for immunotherapy outcomes in advanced unresectable lung adenocarcinoma. THE CLINICAL RESPIRATORY JOURNAL 2024; 18:e13762. [PMID: 38685799 PMCID: PMC11058370 DOI: 10.1111/crj.13762] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2023] [Revised: 04/10/2024] [Accepted: 04/12/2024] [Indexed: 05/02/2024]
Abstract
OBJECTIVE This investigation aims to explore alterations in intestinal microecology and immune function among patients with advanced, unresectable lung adenocarcinoma undergoing different outcomes from immunotherapy. METHODS A cohort of 30 patients diagnosed with advanced unresectable lung adenocarcinoma received sintilimab immunotherapy as a monotherapy. Post four treatment cycles, efficacy was assessed, leading to the segregation of patients into two distinct cohorts: those responsive to treatment and those nonresponsive. Analysis involved observing variations in the abundance, distribution, and composition of fecal intestinal microorganisms pretreatment and posttreatment via 16S rRNA gene sequencing. RESULTS In this study involving 30 advanced lung adenocarcinoma patients, significant observations were made regarding the impact of immunotherapy on immune function and the gut microbiome composition. Patients were divided into treatment and control groups, revealing that immunotherapy led to a significant increase in CD4+ T cells and a decrease in CD8+ T cells among the treatment-responsive individuals, indicating an enhanced immune response. Furthermore, an in-depth analysis of the gut microbiome showed an increase in diversity and abundance of beneficial bacteria such as Faecalibacterium and Subdoligranulum in the treatment group. These findings highlight the dual effect of immunotherapy on modulating immune function and altering gut microbiome diversity, suggesting its potential therapeutic benefits in improving the health status of patients with advanced lung adenocarcinoma. CONCLUSION The structuring of gut flora plays a pivotal role in augmenting the efficacy of anti-tumor immunotherapy, underscoring the interplay between intestinal microecology and immune response in cancer treatment outcomes.
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Affiliation(s)
- Shuang He
- The First Clinical College of Shandong University of Traditional Chinese MedicineJinanChina
| | - Jin Tian
- Oncology Center I DepartmentQingdao Hiser Hospital Affiliated of Qingdao University (Qingdao Traditional Chinese Medicine Hospital)QingdaoChina
| | - Jianhua Zang
- Oncology Center I DepartmentQingdao Hiser Hospital Affiliated of Qingdao University (Qingdao Traditional Chinese Medicine Hospital)QingdaoChina
| | - Lin Long
- Oncology Center I DepartmentQingdao Hiser Hospital Affiliated of Qingdao University (Qingdao Traditional Chinese Medicine Hospital)QingdaoChina
| | - Peng Liu
- Department of Radiotherapy for OncologyQingdao Hiser Hospital Affiliated of Qingdao University (Qingdao Traditional Chinese Medicine Hospital)QingdaoChina
| | - Yexi Zhang
- Rehabilitation Centre of Acupuncture and MassageQingdao Hiser Hospital Affiliated of Qingdao University (Qingdao Traditional Chinese Medicine Hospital)QingdaoChina
| | - Jun Xiao
- Oncology Center I DepartmentQingdao Hiser Hospital Affiliated of Qingdao University (Qingdao Traditional Chinese Medicine Hospital)QingdaoChina
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Flor-Rufino C, Pérez-Ros P, Martínez-Arnau FM. Influence of physical exercise on respiratory muscle function in older adults: A systematic review and meta-analysis. Geriatr Nurs 2024; 57:189-198. [PMID: 38685166 DOI: 10.1016/j.gerinurse.2024.04.016] [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: 01/30/2024] [Accepted: 04/12/2024] [Indexed: 05/02/2024]
Abstract
Respiratory function decreases with aging. The literature showed that non-ventilatory specific exercise could have a positive impact on respiratory muscles. A systematic literature review was conducted to assess the effects of non-ventilatory specific exercise on maximal inspiratory (MIP) and expiratory pressure (MEP) and peak expiratory flow (PEF) in older adults. The included 9 trials investigated the effects of resistance training, yoga, Pilates, physical activity based on walking, and whole-body vibration training. The meta-analysis showed no statistically significant differences in MIP, MEP, and PEF after implementation of a non-ventilatory specific exercise program in older individuals. Between-study heterogeneity was substantial for MIP and MEP outcomes but it was not statistically significant for PEF. Further RCTs will be necessary to determine the effects of physical exercise interventions. PROSPERO registry CRD42023478262.
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Affiliation(s)
- Cristina Flor-Rufino
- Department of Physiotherapy, Universitat de Valencia, Gascó Oliag 5, 46010, Valencia, Spain; Department of Physiotherapy, Universidad Europea de Valencia, Paseo de la Alameda, 7, 46010, Valencia
| | - Pilar Pérez-Ros
- Department of Nursing, Universitat de Valencia, Menéndez Pelayo, 19, 46010, Valencia, Spain; Frailty and cognitive impairment Research Group (FROG), University of Valencia, Menéndez y Pelayo, 19, 46010, Valencia, Spain..
| | - Francisco M Martínez-Arnau
- Department of Physiotherapy, Universitat de Valencia, Gascó Oliag 5, 46010, Valencia, Spain; Frailty and cognitive impairment Research Group (FROG), University of Valencia, Menéndez y Pelayo, 19, 46010, Valencia, Spain
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Li Y, Chen J, Xing Y, Wang J, Liang Q, Zeng J, Wang S, Yang Q, Lu J, Hu J, Lu W. Bufei Huoxue capsule attenuates COPD-related inflammation and regulates intestinal microflora, metabolites. Front Pharmacol 2024; 15:1270661. [PMID: 38659586 PMCID: PMC11041376 DOI: 10.3389/fphar.2024.1270661] [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: 08/01/2023] [Accepted: 03/14/2024] [Indexed: 04/26/2024] Open
Abstract
Background: Bufei Huoxue capsule (BFHX) is widely used for the clinical treatment of chronic obstructive pulmonary disease (COPD) in China. Objectives: The aim of this study is to explore the effects on COPD and the underlying mechanism of BFHX. The process and methods: In this study, we established a COPD mouse model through cigarette smoke (CS) exposure in combination with lipopolysaccharide (LPS) intratracheal instillation. Subsequently, BFHX was orally administrated to COPD mice, and their pulmonary function, lung pathology, and lung inflammation, including bronchoalveolar lavage fluid (BALF) cell count and classification and cytokines, were analyzed. In addition, the anti-oxidative stress ability of BFHX was detected by Western blotting, and the bacterial diversity, abundance, and fecal microbiome were examined using 16S rRNA sequencing technology. Outcome: BFHX was shown to improve pulmonary function, suppress lung inflammation, decrease emphysema, and increase anti-oxidative stress, whereas 16S rRNA sequencing indicated that BFHX can dynamically regulate the diversity, composition, and distribution of the intestinal flora microbiome and regulate the lysine degradation and phenylalanine metabolism of COPD mice. These results highlight another treatment option for COPD and provide insights into the mechanism of BFHX.
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Affiliation(s)
- Yuanyuan Li
- Guangzhou Medicine University,Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical, Guangzhou, China
| | - Jiali Chen
- Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Yue Xing
- Guangzhou Medicine University,Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical, Guangzhou, China
| | - Jian Wang
- Guangzhou Medicine University,Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical, Guangzhou, China
| | - Qiuling Liang
- First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Jiamin Zeng
- Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Siyi Wang
- Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Qiong Yang
- Key Laboratory of National Health Commission for the Diagnosis and Treatment of COPD, Inner Mongolia People’s Hospital, Hohhot, China
| | - Jianing Lu
- Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Jieying Hu
- Guangzhou Medicine University,Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical, Guangzhou, China
| | - Wenju Lu
- Guangzhou Medicine University,Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical, Guangzhou, China
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Lian Q, Song X, Yang J, Wang L, Xu P, Wang X, Xu X, Yang B, He J, Ju C. Alterations of lung microbiota in lung transplant recipients with pneumocystis jirovecii pneumonia. Respir Res 2024; 25:125. [PMID: 38486264 PMCID: PMC10941442 DOI: 10.1186/s12931-024-02755-9] [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: 01/21/2024] [Accepted: 03/04/2024] [Indexed: 03/17/2024] Open
Abstract
BACKGROUND Increasing evidence revealed that lung microbiota dysbiosis was associated with pulmonary infection in lung transplant recipients (LTRs). Pneumocystis jirovecii (P. jirovecii) is an opportunistic fungal pathogen that frequently causes lethal pneumonia in LTRs. However, the lung microbiota in LTRs with P. jirovecii pneumonia (PJP) remains unknow. METHODS In this prospective observational study, we performed metagenomic next-generation sequencing (mNGS) on 72 bronchoalveolar lavage fluid (BALF) samples from 61 LTRs (20 with PJP, 22 with PJC, 19 time-matched stable LTRs, and 11 from LTRs after PJP recovery). We compared the lung microbiota composition of LTRs with and without P. jirovecii, and analyzed the related clinical variables. RESULTS BALFs collected at the episode of PJP showed a more discrete distribution with a lower species diversity, and microbiota composition differed significantly compared to P. jirovecii colonization (PJC) and control group. Human gammaherpesvirus 4, Phreatobacter oligotrophus, and Pseudomonas balearica were the differential microbiota species between the PJP and the other two groups. The network analysis revealed that most species had a positive correlation, while P. jirovecii was correlated negatively with 10 species including Acinetobacter venetianus, Pseudomonas guariconensis, Paracandidimonas soli, Acinetobacter colistiniresistens, and Castellaniella defragrans, which were enriched in the control group. The microbiota composition and diversity of BALF after PJP recovery were also different from the PJP and control groups, while the main components of the PJP recovery similar to control group. Clinical variables including age, creatinine, total protein, albumin, IgG, neutrophil, lymphocyte, CD3+CD45+, CD3+CD4+ and CD3+CD8+ T cells were deeply implicated in the alterations of lung microbiota in LTRs. CONCLUSIONS This study suggests that LTRs with PJP had altered lung microbiota compared to PJC, control, and after recovery groups. Furthermore, lung microbiota is related to age, renal function, nutritional and immune status in LTRs.
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Affiliation(s)
- Qiaoyan Lian
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, Department of Organ transplantation, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, 510120, Guangzhou, Guangdong, P.R. China
| | - Xiuling Song
- Vision Medicals Co., Ltd, 510700, Guangzhou, Guangdong, P.R. China
| | - Juhua Yang
- Vision Medicals Co., Ltd, 510700, Guangzhou, Guangdong, P.R. China
| | - Lulin Wang
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, Department of Organ transplantation, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, 510120, Guangzhou, Guangdong, P.R. China
| | - Peihang Xu
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, Department of Organ transplantation, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, 510120, Guangzhou, Guangdong, P.R. China
| | - Xiaohua Wang
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, Department of Organ transplantation, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, 510120, Guangzhou, Guangdong, P.R. China
| | - Xin Xu
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, Department of Organ transplantation, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, 510120, Guangzhou, Guangdong, P.R. China
- Department of Thoracic Surgery, the First Affiliated Hospital of Guangzhou Medical University, 510120, Guangzhou, Guangdong, P.R. China
| | - Bin Yang
- Vision Medicals Co., Ltd, 510700, Guangzhou, Guangdong, P.R. China
| | - Jianxing He
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, Department of Organ transplantation, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, 510120, Guangzhou, Guangdong, P.R. China.
- Department of Thoracic Surgery, the First Affiliated Hospital of Guangzhou Medical University, 510120, Guangzhou, Guangdong, P.R. China.
| | - Chunrong Ju
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, Department of Organ transplantation, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, 510120, Guangzhou, Guangdong, P.R. China.
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10
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Eladham MW, Selvakumar B, Saheb Sharif-Askari N, Saheb Sharif-Askari F, Ibrahim SM, Halwani R. Unraveling the gut-Lung axis: Exploring complex mechanisms in disease interplay. Heliyon 2024; 10:e24032. [PMID: 38268584 PMCID: PMC10806295 DOI: 10.1016/j.heliyon.2024.e24032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2023] [Revised: 12/18/2023] [Accepted: 01/02/2024] [Indexed: 01/26/2024] Open
Abstract
The link between gut and lung starts as early as during organogenesis. Even though they are anatomically distinct, essential bidirectional crosstalk via complex mechanisms supports GLA. Emerging studies have demonstrated the association of gut and lung diseases via multifaceted mechanisms. Advancements in omics and metagenomics technologies revealed a potential link between gut and lung microbiota, adding further complexity to GLA. Despite substantial studies on GLA in various disease models, mechanisms beyond microbial dysbiosis regulating the interplay between gut and lung tissues during disease conditions are not thoroughly reviewed. This review outlines disease specific GLA mechanisms, emphasizing research gaps with a focus on gut-to-lung direction based on current GLA literature. Moreover, the review discusses potential gut microbiota and their products like metabolites, immune modulators, and non-bacterial contributions as a basis for developing treatment strategies for lung diseases. Advanced experimental methods, modern diagnostic tools, and technological advancements are also highlighted as crucial areas for improvement in developing novel therapeutic approaches for GLA-related diseases. In conclusion, this review underscores the importance of exploring additional mechanisms within the GLA to gain a deeper understanding that could aid in preventing and treating a wide spectrum of lung diseases.
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Affiliation(s)
- Mariam Wed Eladham
- Research Institute for Medical and Health Sciences, University of Sharjah, Sharjah, United Arab Emirates
| | - Balachandar Selvakumar
- Research Institute for Medical and Health Sciences, University of Sharjah, Sharjah, United Arab Emirates
| | - Narjes Saheb Sharif-Askari
- Research Institute for Medical and Health Sciences, University of Sharjah, Sharjah, United Arab Emirates
- Department of Clinical Sciences, College of Medicine, University of Sharjah, Sharjah, United Arab Emirates
| | - Fatemeh Saheb Sharif-Askari
- Research Institute for Medical and Health Sciences, University of Sharjah, Sharjah, United Arab Emirates
- Department of Pharmacy Practice and Pharmaceutics, College of Pharmacy, University of Sharjah, Sharjah, United Arab Emirates
| | | | - Rabih Halwani
- Research Institute for Medical and Health Sciences, University of Sharjah, Sharjah, United Arab Emirates
- Department of Clinical Sciences, College of Medicine, University of Sharjah, Sharjah, United Arab Emirates
- Prince Abdullah Ben Khaled Celiac Disease Research Chair, Department of Pediatrics, Faculty of Medicine, King Saud University, Saudi Arabia
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11
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Pragman AA, Hodgson SW, Wu T, Zank A, Reilly CS, Wendt CH. Sputum microbiome α-diversity is a key feature of the COPD frequent exacerbator phenotype. ERJ Open Res 2024; 10:00595-2023. [PMID: 38333651 PMCID: PMC10851948 DOI: 10.1183/23120541.00595-2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Accepted: 11/07/2023] [Indexed: 02/10/2024] Open
Abstract
Background The lung microbiome is an inflammatory stimulus whose role in COPD pathogenesis is incompletely understood. We hypothesised that the frequent exacerbator phenotype is associated with decreased α-diversity and increased lung inflammation. Our objective was to assess correlations between the frequent exacerbator phenotype, the microbiome and inflammation longitudinally during exacerbation-free periods. Methods We conducted a case-control longitudinal observational study of the frequent exacerbator phenotype and characteristics of the airway microbiome. 81 subjects (41 frequent and 40 infrequent exacerbators) provided nasal, oral and sputum microbiome samples at two visits over 2-4 months. Exacerbation phenotype, relevant clinical factors and sputum cytokine values were associated with microbiome findings. Results The frequent exacerbator phenotype was associated with lower sputum microbiome α-diversity (p=0.0031). This decrease in α-diversity among frequent exacerbators was enhanced when the sputum bacterial culture was positive (p<0.001). Older age was associated with decreased sputum microbiome α-diversity (p=0.0030). Between-visit β-diversity was increased among frequent exacerbators and those who experienced a COPD exacerbation between visits (p=0.025 and p=0.014, respectively). Sputum cytokine values did not differ based on exacerbation phenotype or other clinical characteristics. Interleukin (IL)-17A was negatively associated with α-diversity, while IL-6 and IL-8 were positively associated with α-diversity (p=0.012, p=0.012 and p=0.0496, respectively). IL-22, IL-17A and IL-5 levels were positively associated with Moraxella abundance (p=0.027, p=0.0014 and p=0.0020, respectively). Conclusions Even during exacerbation-free intervals, the COPD frequent exacerbator phenotype is associated with decreased sputum microbiome α-diversity and increased β-diversity. Decreased sputum microbiome α-diversity and Moraxella abundance are associated with lung inflammation.
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Affiliation(s)
- Alexa A. Pragman
- Department of Medicine, Minneapolis VA Health Care System and Department of Medicine, University of Minnesota, Minneapolis, MN, USA
| | - Shane W. Hodgson
- Research Service, Minneapolis VA Health Care System, Minneapolis, MN, USA
| | - Tianhua Wu
- Division of Biostatistics, University of Minnesota, Minneapolis, MN, USA
| | - Allison Zank
- Research Service, Minneapolis VA Health Care System, Minneapolis, MN, USA
| | - Cavan S. Reilly
- Division of Biostatistics, University of Minnesota, Minneapolis, MN, USA
| | - Chris H. Wendt
- Department of Medicine, Minneapolis VA Health Care System and Department of Medicine, University of Minnesota, Minneapolis, MN, USA
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12
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Sah RK, Nandan A, Kv A, S P, S S, Jose A, Venkidasamy B, Nile SH. Decoding the role of the gut microbiome in gut-brain axis, stress-resilience, or stress-susceptibility: A review. Asian J Psychiatr 2024; 91:103861. [PMID: 38134565 DOI: 10.1016/j.ajp.2023.103861] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Revised: 12/01/2023] [Accepted: 12/08/2023] [Indexed: 12/24/2023]
Abstract
Increased exposure to stress is associated with stress-related disorders, including depression, anxiety, and neurodegenerative conditions. However, susceptibility to stress is not seen in every individual exposed to stress, and many of them exhibit resilience. Thus, developing resilience to stress could be a big breakthrough in stress-related disorders, with the potential to replace or act as an alternative to the available therapies. In this article, we have focused on the recent advancements in gut microbiome research and the potential role of the gut-brain axis (GBA) in developing resilience or susceptibility to stress. There might be a complex interaction between the autonomic nervous system (ANS), immune system, endocrine system, microbial metabolites, and bioactive lipids like short-chain fatty acids (SCFAs), neurotransmitters, and their metabolites that regulates the communication between the gut microbiota and the brain. High fiber intake, prebiotics, probiotics, plant supplements, and fecal microbiome transplant (FMT) could be beneficial against gut dysbiosis-associated brain disorders. These could promote the growth of SCFA-producing bacteria, thereby enhancing the gut barrier and reducing the gut inflammatory response, increase the expression of the claudin-2 protein associated with the gut barrier, and maintain the blood-brain barrier integrity by promoting the expression of tight junction proteins such as claudin-5. Their neuroprotective effects might also be related to enhancing the expression of brain-derived neurotrophic factor (BDNF) and glucagon-like peptide (GLP-1). Further investigations are needed in the field of the gut microbiome for the elucidation of the mechanisms by which gut dysbiosis contributes to the pathophysiology of neuropsychiatric disorders.
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Affiliation(s)
- Ranjay Kumar Sah
- Department of Pharmacology, Amrita School of Pharmacy, Amrita Vishwa Vidyapeetham, AIMS Health Sciences Campus, Kochi 682 041, Kerala, India
| | - Amritasree Nandan
- Department of Pharmacology, Amrita School of Pharmacy, Amrita Vishwa Vidyapeetham, AIMS Health Sciences Campus, Kochi 682 041, Kerala, India
| | - Athira Kv
- Department of Pharmacology, Amrita School of Pharmacy, Amrita Vishwa Vidyapeetham, AIMS Health Sciences Campus, Kochi 682 041, Kerala, India.
| | - Prashant S
- Department of Pharmaceutical Chemistry, Amrita School of Pharmacy, Amrita Vishwa Vidyapeetham, AIMS Health Sciences Campus, Kochi 682 041, Kerala, India
| | - Sathianarayanan S
- NITTE (Deemed to be University), NGSM Institute of Pharmaceutical Sciences, Department of Pharmaceutical Chemistry, Mangalore, India
| | - Asha Jose
- JSS College of Pharmacy, JSS Academy of Higher Education and research, Ooty 643001, Tamil Nadu, India
| | - Baskar Venkidasamy
- Department of Oral & Maxillofacial Surgery, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences (SIMATS), Saveetha University, Chennai 600 077, Tamil Nadu, India.
| | - Shivraj Hariram Nile
- Division of Food and Nutritional Biotechnology, National Agri-Food Biotechnology Institute (NABI), Sector-81, Mohali 140306, Punjab, India.
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13
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Noordine ML, Seyoum Y, Bruneau A, Baye K, Lefebvre T, Cherbuy C, Canonne-Hergaux F, Nicolas G, Humblot C, Thomas M. The microbiota and the host organism switch between cooperation and competition based on dietary iron levels. Gut Microbes 2024; 16:2361660. [PMID: 38935764 PMCID: PMC11212566 DOI: 10.1080/19490976.2024.2361660] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/13/2024] [Accepted: 05/24/2024] [Indexed: 06/29/2024] Open
Abstract
The microbiota significantly impacts digestive epithelium functionality, especially in nutrient processing. Given the importance of iron for both the host and the microbiota, we hypothesized that host-microbiota interactions fluctuate with dietary iron levels. We compared germ-free (GF) and conventional mice (SPF) fed iron-containing (65 mg/Kg) or iron-depleted (<6 mg/Kg) diets. The efficacy of iron privation was validated by iron blood parameters. Ferritin and Dmt1, which represent cellular iron storage and transport respectively, were studied in tissues where they are abundant: the duodenum, liver and lung. When the mice were fed an iron-rich diet, the microbiota increased blood hemoglobin and hepcidin and the intestinal ferritin levels, suggesting that the microbiota helps iron storage. When iron was limiting, the microbiota inhibited the expression of the intestinal Dmt1 transporter, likely via the pathway triggered by Hif-2α. The microbiota assists the host in storing intestinal iron when it is abundant and competes with the host by inhibiting Dmt1 in conditions of iron scarcity. Comparison between duodenum, liver and lung indicates organ-specific responses to microbiota and iron availability. Iron depletion induced temporal changes in microbiota composition and activity, reduced α-diversity of microbiota, and led to Lactobacillaceae becoming particularly more abundant after 60 days of privation. By inoculating GF mice with a simplified bacterial mixture, we show that the iron-depleted host favors the gut fitness of Bifidobacterium longum.
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Affiliation(s)
- Marie-Louise Noordine
- Micalis Institute, Institut national de recherche pour l’agriculture, l’alimentation et l’environnement (INRAE), AgroParisTech, Université Paris-Saclay, UMR1319, Jouy-en-Josas, France
- Center for Microbiome Medicine (PaCeMM) FHU, AP-HP, Paris, Ile-de-France, France
| | - Yohannes Seyoum
- Micalis Institute, Institut national de recherche pour l’agriculture, l’alimentation et l’environnement (INRAE), AgroParisTech, Université Paris-Saclay, UMR1319, Jouy-en-Josas, France
- Center for Food Science and Nutrition, College of Natural and Computational Sciences, Addis Ababa University, Addis Ababa, Ethiopia
- QualiSud, Université de Montpellier, Avignon Université, CIRAD, Institut Agro, IRD, Université de la Réunion, Montpellier Cedex, France
| | - Aurélia Bruneau
- Micalis Institute, Institut national de recherche pour l’agriculture, l’alimentation et l’environnement (INRAE), AgroParisTech, Université Paris-Saclay, UMR1319, Jouy-en-Josas, France
- Center for Microbiome Medicine (PaCeMM) FHU, AP-HP, Paris, Ile-de-France, France
| | - Kaleab Baye
- Center for Food Science and Nutrition, College of Natural and Computational Sciences, Addis Ababa University, Addis Ababa, Ethiopia
| | - Thibaud Lefebvre
- Assistance Publique-Hôpitaux de Paris, Centre Français des Porphyries, Hôpital Louis Mourier, Colombes, France
- Institut National de la Santé et de la Recherche Médicale, U1149, Centre de Recherches sur l’Inflammation, Paris, France
| | - Claire Cherbuy
- Micalis Institute, Institut national de recherche pour l’agriculture, l’alimentation et l’environnement (INRAE), AgroParisTech, Université Paris-Saclay, UMR1319, Jouy-en-Josas, France
- Center for Microbiome Medicine (PaCeMM) FHU, AP-HP, Paris, Ile-de-France, France
| | - François Canonne-Hergaux
- IRSD, Université de Toulouse, INSERM, INRAE, ENVT, Univ Toulouse III - Paul Sabatier (UPS), Toulouse, France
- U1188 DéTROI, Université de La Réunion, Paris, France
| | - Gaël Nicolas
- Institut National de la Santé et de la Recherche Médicale, U1149, Centre de Recherches sur l’Inflammation, Paris, France
- Université Paris Diderot, site Bichat, Sorbonne Paris Cité, Paris, Ile-de-France, France
| | - Christèle Humblot
- QualiSud, Université de Montpellier, Avignon Université, CIRAD, Institut Agro, IRD, Université de la Réunion, Montpellier Cedex, France
| | - Muriel Thomas
- Micalis Institute, Institut national de recherche pour l’agriculture, l’alimentation et l’environnement (INRAE), AgroParisTech, Université Paris-Saclay, UMR1319, Jouy-en-Josas, France
- Center for Microbiome Medicine (PaCeMM) FHU, AP-HP, Paris, Ile-de-France, France
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14
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Malik JA, Zafar MA, Lamba T, Nanda S, Khan MA, Agrewala JN. The impact of aging-induced gut microbiome dysbiosis on dendritic cells and lung diseases. Gut Microbes 2023; 15:2290643. [PMID: 38087439 PMCID: PMC10718154 DOI: 10.1080/19490976.2023.2290643] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Accepted: 11/28/2023] [Indexed: 12/18/2023] Open
Abstract
Aging is an inevitable natural process that impacts every individual, and understanding its effect on the gut microbiome and dendritic cell (DC) functionality in elderly subjects is crucial. DCs are vital antigen-presenting cells (APCs) that orchestrate the immune response, maintaining immune tolerance to self-antigens and bridging innate and adaptive immunity. With aging, there is a shift toward nonspecific innate immunity, resulting in a decline in adaptive immune responses. This alteration raises significant concerns about managing the health of an elderly population. However, the precise impact of aging and microbiome changes on DC function and their implications in lung-associated diseases remain relatively understudied. To illuminate this subject, we will discuss recent advancements in understanding the connections between aging, gut dysbiosis, DCs, and lung diseases. Emphasizing the key concepts linking age-related gut microbiome changes and DC functions, we will focus on their relevance to overall health and immune response in elderly individuals. This article aims to improve our understanding of the intricate relationship between aging, gut microbiome, and DCs, potentially benefiting the management of age-associated diseases and promoting healthy aging.
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Affiliation(s)
- Jonaid Ahmad Malik
- Department of Biomedical Engineering, Indian Institute of Ropar, Rupnagar, Punjab, India
| | - Mohammad Adeel Zafar
- Department of Biomedical Engineering, Indian Institute of Ropar, Rupnagar, Punjab, India
| | - Taruna Lamba
- Department of Biomedical Engineering, Indian Institute of Ropar, Rupnagar, Punjab, India
| | - Sidhanta Nanda
- Department of Biomedical Engineering, Indian Institute of Ropar, Rupnagar, Punjab, India
| | - Mohammad Affan Khan
- Department of Biomedical Engineering, Indian Institute of Ropar, Rupnagar, Punjab, India
| | - Javed Naim Agrewala
- Department of Biomedical Engineering, Indian Institute of Ropar, Rupnagar, Punjab, India
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15
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Choi B, San José Estépar R, Godbole S, Curtis JL, Wang JM, San José Estépar R, Rosas IO, Mayers JR, Hobbs BD, Hersh CP, Ash SY, Han MK, Bowler RP, Stringer KA, Washko GR, Labaki WW. Plasma metabolomics and quantitative interstitial abnormalities in ever-smokers. Respir Res 2023; 24:265. [PMID: 37925418 PMCID: PMC10625195 DOI: 10.1186/s12931-023-02576-2] [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: 09/12/2023] [Accepted: 10/23/2023] [Indexed: 11/06/2023] Open
Abstract
BACKGROUND Quantitative interstitial abnormalities (QIA) are an automated computed tomography (CT) finding of early parenchymal lung disease, associated with worse lung function, reduced exercise capacity, increased respiratory symptoms, and death. The metabolomic perturbations associated with QIA are not well known. We sought to identify plasma metabolites associated with QIA in smokers. We also sought to identify shared and differentiating metabolomics features between QIA and emphysema, another smoking-related advanced radiographic abnormality. METHODS In 928 former and current smokers in the Genetic Epidemiology of COPD cohort, we measured QIA and emphysema using an automated local density histogram method and generated metabolite profiles from plasma samples using liquid chromatography-mass spectrometry (Metabolon). We assessed the associations between metabolite levels and QIA using multivariable linear regression models adjusted for age, sex, body mass index, smoking status, pack-years, and inhaled corticosteroid use, at a Benjamini-Hochberg False Discovery Rate p-value of ≤ 0.05. Using multinomial regression models adjusted for these covariates, we assessed the associations between metabolite levels and the following CT phenotypes: QIA-predominant, emphysema-predominant, combined-predominant, and neither- predominant. Pathway enrichment analyses were performed using MetaboAnalyst. RESULTS We found 85 metabolites significantly associated with QIA, with overrepresentation of the nicotinate and nicotinamide, histidine, starch and sucrose, pyrimidine, phosphatidylcholine, lysophospholipid, and sphingomyelin pathways. These included metabolites involved in inflammation and immune response, extracellular matrix remodeling, surfactant, and muscle cachexia. There were 75 metabolites significantly different between QIA-predominant and emphysema-predominant phenotypes, with overrepresentation of the phosphatidylethanolamine, nicotinate and nicotinamide, aminoacyl-tRNA, arginine, proline, alanine, aspartate, and glutamate pathways. CONCLUSIONS Metabolomic correlates may lend insight to the biologic perturbations and pathways that underlie clinically meaningful quantitative CT measurements like QIA in smokers.
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Affiliation(s)
- Bina Choi
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Brigham and Women's Hospital, 75 Francis Street, Pulmonary-PBB-CA-3, Boston, MA, 02115, USA.
- Applied Chest Imaging Laboratory, Brigham and Women's Hospital, Boston, MA, USA.
| | - Raúl San José Estépar
- Applied Chest Imaging Laboratory, Brigham and Women's Hospital, Boston, MA, USA
- Department of Radiology, Brigham and Women's Hospital, Boston, MA, USA
| | - Suneeta Godbole
- Anschutz Medical Campus, Department of Biostatistics and Informatics, University of Colorado, Aurora, CO, USA
| | - Jeffrey L Curtis
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, University of Michigan, Ann Arbor, MI, USA
- Medical Service, VA Ann Arbor Healthcare System, Ann Arbor, MI, USA
| | - Jennifer M Wang
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, University of Michigan, Ann Arbor, MI, USA
| | - Rubén San José Estépar
- Applied Chest Imaging Laboratory, Brigham and Women's Hospital, Boston, MA, USA
- Department of Radiology, Brigham and Women's Hospital, Boston, MA, USA
| | | | - Jared R Mayers
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Brigham and Women's Hospital, 75 Francis Street, Pulmonary-PBB-CA-3, Boston, MA, 02115, USA
| | - Brian D Hobbs
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Brigham and Women's Hospital, 75 Francis Street, Pulmonary-PBB-CA-3, Boston, MA, 02115, USA
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital, Boston, MA, USA
| | - Craig P Hersh
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Brigham and Women's Hospital, 75 Francis Street, Pulmonary-PBB-CA-3, Boston, MA, 02115, USA
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital, Boston, MA, USA
| | - Samuel Y Ash
- Applied Chest Imaging Laboratory, Brigham and Women's Hospital, Boston, MA, USA
- Department of Critical Care, South Shore Hospital, South Weymouth, MA, USA
| | - MeiLan K Han
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, University of Michigan, Ann Arbor, MI, USA
| | - Russell P Bowler
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, National Jewish Health, Denver, CO, USA
| | - Kathleen A Stringer
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, University of Michigan, Ann Arbor, MI, USA
- Department of Clinical Pharmacy, College of Pharmacy, University of Michigan, Ann Arbor, MI, USA
| | - George R Washko
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Brigham and Women's Hospital, 75 Francis Street, Pulmonary-PBB-CA-3, Boston, MA, 02115, USA
- Applied Chest Imaging Laboratory, Brigham and Women's Hospital, Boston, MA, USA
| | - Wassim W Labaki
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, University of Michigan, Ann Arbor, MI, USA
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Ding K, Sun E, Huang R, Heng W, Li X, Liu J, Zhao J, Li C, Feng L, Jia X. Integrated metabolome-microbiome analysis investigates the different regulations of Pudilan Xiaoyan oral liquid in young rats with acute pharyngitis compared to adult rats. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2023; 120:155037. [PMID: 37611464 DOI: 10.1016/j.phymed.2023.155037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Revised: 07/21/2023] [Accepted: 08/15/2023] [Indexed: 08/25/2023]
Abstract
BACKGROUND Pudilan Xiaoyan Oral Liquid (PDL) is a famous traditional Chinese prescription recorded in the Chinese Pharmacopeia, which is widely used to treat inflammatory diseases of the respiratory tract in children and adults. However, the endogenous changes in children and adults with PDL in the treatment of acute pharyngitis remain unclear. PURPOSE The differential regulatory roles of PDL in endogenous metabolism and gut microbes in young and adult rats were investigated with a view to providing a preclinical data reference for PDL in medication for children. METHODS An acute pharyngitis model was established, and serum levels of inflammatory factors and histopathology were measured. This study simulated the growth and development of children in young rats and explored the endogenous metabolic characteristics and intestinal microbial composition after the intervention of PDL by using serum metabolomic technique and 16S rRNA high-throughput sequencing technique. RESULTS The results showed that PDL had therapeutic effects on young and adult rats with acute pharyngitis. Sixteen biomarkers were identified by metabolomics in the serum of young rats and 23 in adult rats. PDL can also affect intestinal microbial diversity and community richness in young and adult rats. Alloprevotella, Allobaculum, Alistipes, Bifidobacterium, and Enterorhabdus were prominent bacteria in young rats. Bacteria from the phylum Firmicutes of the adult rats changed more significantly under the treatment of PDL. In young rats, amino acid metabolism was the primary regulatory mode of PDL, whereas, in adult rats, glycerophospholipid metabolism was studied. CONCLUSION The regulation of PDL on the serum metabolite group and intestinal microflora in young rats was different from that in adult rats, indicating the necessity of an independent study on children's medication. PDL may also exert therapeutic effects on young and adult rats by regulating gut microbial homeostasis. The results support the clinical application of PDL.
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Affiliation(s)
- Ke Ding
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210028, China; Key Laboratory of New Drug Delivery System of Chinese Materia Medica, Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing 210028, China
| | - E Sun
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210028, China; Key Laboratory of New Drug Delivery System of Chinese Materia Medica, Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing 210028, China.
| | - Ran Huang
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210028, China; Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing 210029, China
| | - Wangqin Heng
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210028, China; Key Laboratory of New Drug Delivery System of Chinese Materia Medica, Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing 210028, China
| | - Xuan Li
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210028, China; Key Laboratory of New Drug Delivery System of Chinese Materia Medica, Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing 210028, China
| | - Jun Liu
- Jiangsu Key Laboratory of Chinese Medicine and Characteristic Preparations for Paediatrics, Jumpcan Pharmaceutical Co., Ltd., Taixing 225400, China
| | - Jing Zhao
- Jiangsu Key Laboratory of Chinese Medicine and Characteristic Preparations for Paediatrics, Jumpcan Pharmaceutical Co., Ltd., Taixing 225400, China
| | - Chao Li
- Jiangsu Key Laboratory of Chinese Medicine and Characteristic Preparations for Paediatrics, Jumpcan Pharmaceutical Co., Ltd., Taixing 225400, China
| | - Liang Feng
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Xiaobin Jia
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210028, China; School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, China.
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Kim J, Lee S, Moodley Y, Yagnik L, Birnie D, Dwivedi G. The role of the host-microbiome and metabolomics in sarcoidosis. Am J Physiol Cell Physiol 2023; 325:C1336-C1353. [PMID: 37746695 DOI: 10.1152/ajpcell.00316.2023] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Revised: 09/19/2023] [Accepted: 09/19/2023] [Indexed: 09/26/2023]
Abstract
Sarcoidosis is a complex inflammatory fibrotic disease that affects multiple organ systems. It is characterized by the infiltration of lymphocytes and mononuclear phagocytes, which form non-caseating granulomas in affected organs. The lungs and intrathoracic lymph nodes are the most commonly affected organs. The underlying cause of sarcoidosis is unknown, but it is believed to occur in genetically predisposed individuals who are exposed to pathogenic organisms, environmental contaminants, or self and non-self-antigens. Recent research has suggested that the microbiome may play a role in the development of respiratory conditions, including sarcoidosis. Additionally, metabolomic studies have identified potential biomarkers for monitoring sarcoidosis progression. This review will focus on recent microbiome and metabolomic findings in sarcoidosis, with the goal of shedding light on the pathogenesis and possible diagnostic and therapeutic approaches.
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Affiliation(s)
- Junwoo Kim
- Department of Advanced Clinical and Translational Cardiovascular Imaging, Harry Perkins Institute of Medical Research, Murdoch, Western Australia, Australia
- School of Medicine, The University of Western Australia, Crawley, Western Australia, Australia
| | - Silvia Lee
- Department of Advanced Clinical and Translational Cardiovascular Imaging, Harry Perkins Institute of Medical Research, Murdoch, Western Australia, Australia
- School of Medicine, The University of Western Australia, Crawley, Western Australia, Australia
| | - Yuben Moodley
- Department of Advanced Clinical and Translational Cardiovascular Imaging, Harry Perkins Institute of Medical Research, Murdoch, Western Australia, Australia
- School of Medicine, The University of Western Australia, Crawley, Western Australia, Australia
- Department of Respiratory Internal Medicine, Fiona Stanley Hospital, Murdoch, Western Australia, Australia
| | - Lokesh Yagnik
- Department of Advanced Clinical and Translational Cardiovascular Imaging, Harry Perkins Institute of Medical Research, Murdoch, Western Australia, Australia
- School of Medicine, The University of Western Australia, Crawley, Western Australia, Australia
- Department of Respiratory Internal Medicine, Fiona Stanley Hospital, Murdoch, Western Australia, Australia
| | - David Birnie
- Department of Advanced Clinical and Translational Cardiovascular Imaging, Harry Perkins Institute of Medical Research, Murdoch, Western Australia, Australia
- School of Medicine, The University of Western Australia, Crawley, Western Australia, Australia
- Division of Cardiology, Department of Medicine, University of Ottawa, University of Ottawa Heart Institute, Ottawa, Ontario, Canada
| | - Girish Dwivedi
- Department of Advanced Clinical and Translational Cardiovascular Imaging, Harry Perkins Institute of Medical Research, Murdoch, Western Australia, Australia
- School of Medicine, The University of Western Australia, Crawley, Western Australia, Australia
- Division of Cardiology, Department of Medicine, University of Ottawa, University of Ottawa Heart Institute, Ottawa, Ontario, Canada
- Department of Cardiology, Fiona Stanley Hospital, Murdoch, Western Australia, Australia
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18
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Boopathi S, Priya PS, Haridevamuthu B, Nayak SPRR, Chandrasekar M, Arockiaraj J, Jia AQ. Expanding germ-organ theory: Understanding non-communicable diseases through enterobacterial translocation. Pharmacol Res 2023; 194:106856. [PMID: 37460001 DOI: 10.1016/j.phrs.2023.106856] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Revised: 07/02/2023] [Accepted: 07/14/2023] [Indexed: 07/29/2023]
Abstract
Diverse microbial communities colonize different habitats of the human body, including gut, oral cavity, nasal cavity and tissues. These microbial communities are known as human microbiome, plays a vital role in maintaining the health. However, changes in the composition and functions of human microbiome can result in chronic low-grade inflammation, which can damage the epithelial cells and allows pathogens and their toxic metabolites to translocate into other organs such as the liver, heart, and kidneys, causing metabolic inflammation. This dysbiosis of human microbiome has been directly linked to the onset of several non-communicable diseases. Recent metabolomics studies have revealed that pathogens produce several uraemic toxins. These metabolites can serve as inter-kingdom signals, entering the circulatory system and altering host metabolism, thereby aggravating a variety of diseases. Interestingly, Enterobacteriaceae, a critical member of Proteobacteria, has been commonly associated with several non-communicable diseases, and the abundance of this family has been positively correlated with uraemic toxin production. Hence, this review provides a comprehensive overview of Enterobacterial translocation and their metabolites role in non-communicable diseases. This understanding may lead to the identification of novel biomarkers for each metabolic disease as well as the development of novel therapeutic drugs.
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Affiliation(s)
- Seenivasan Boopathi
- Hainan General Hospital, Hainan affiliated hospital of Hainan Medical University, Haikou 570311, China; Toxicology and Pharmacology Laboratory, Department of Biotechnology, Faculty of Science and Humanities, SRM Institute of Science and Technology, Kattankulathur 603 203, Chengalpattu District, Tamil Nadu, India
| | - P Snega Priya
- Toxicology and Pharmacology Laboratory, Department of Biotechnology, Faculty of Science and Humanities, SRM Institute of Science and Technology, Kattankulathur 603 203, Chengalpattu District, Tamil Nadu, India
| | - B Haridevamuthu
- Toxicology and Pharmacology Laboratory, Department of Biotechnology, Faculty of Science and Humanities, SRM Institute of Science and Technology, Kattankulathur 603 203, Chengalpattu District, Tamil Nadu, India
| | - S P Ramya Ranjan Nayak
- Toxicology and Pharmacology Laboratory, Department of Biotechnology, Faculty of Science and Humanities, SRM Institute of Science and Technology, Kattankulathur 603 203, Chengalpattu District, Tamil Nadu, India
| | - Munisamy Chandrasekar
- Department of Veterinary Clinical Medicine, Madras Veterinary College, Chennai, Tamil Nadu, India
| | - Jesu Arockiaraj
- Toxicology and Pharmacology Laboratory, Department of Biotechnology, Faculty of Science and Humanities, SRM Institute of Science and Technology, Kattankulathur 603 203, Chengalpattu District, Tamil Nadu, India.
| | - Ai-Qun Jia
- Hainan General Hospital, Hainan affiliated hospital of Hainan Medical University, Haikou 570311, China.
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19
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Liu S, Zhang L, Li S. Advances in nutritional supplementation for sarcopenia management. Front Nutr 2023; 10:1189522. [PMID: 37492597 PMCID: PMC10365293 DOI: 10.3389/fnut.2023.1189522] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2023] [Accepted: 06/20/2023] [Indexed: 07/27/2023] Open
Abstract
Sarcopenia is a syndrome characterized by a decline in muscular mass, strength, and function with advancing age. The risk of falls, fragility, hospitalization, and death is considerably increased in the senior population due to sarcopenia. Although there is no conclusive evidence for drug treatment, resistance training has been unanimously recognized as a first-line treatment for managing sarcopenia, and numerous studies have also pointed to the combination of nutritional supplementation and resistance training as a more effective intervention to improve quality of life for people with sarcopenia. People with both malnutrition and sarcopenia have a higher mortality rate, so identifying people at risk of malnutrition and intervening early is extremely important to avoid sarcopenia and its associated problems. This article provides important information for dietary interventions in sarcopenia by summarizing the discoveries and developments of nutritional supplements such as protein, leucine, β-hydroxy-β-methylbutyric acid, vitamin D, vitamin C, vitamin E, omega-3 fatty acids, creatine, inorganic nitrate, probiotics, minerals, collagen peptides, and polyphenols in the management of sarcopenia.
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Affiliation(s)
- Simin Liu
- General Practice Ward/International Medical Center Ward, General Practice Medical Center, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Lin Zhang
- General Practice Ward/International Medical Center Ward, General Practice Medical Center, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Shuangqing Li
- General Practice Ward/International Medical Center Ward, General Practice Medical Center, West China Hospital, Sichuan University, Chengdu, Sichuan, China
- National Clinical Research Center for Geriatrics, Multimorbidity Laboratory, West China Hospital, Sichuan University, Chengdu, Sichuan, China
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20
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Strauss M, Mičetić Turk D, Lorber M, Pogačar MŠ, Koželj A, Tušek Bunc K, Fijan S. The Multi-Strain Probiotic OMNi-BiOTiC ® Active Reduces the Duration of Acute Upper Respiratory Disease in Older People: A Double-Blind, Randomised, Controlled Clinical Trial. Microorganisms 2023; 11:1760. [PMID: 37512932 PMCID: PMC10385525 DOI: 10.3390/microorganisms11071760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 06/30/2023] [Accepted: 07/04/2023] [Indexed: 07/30/2023] Open
Abstract
Immunosenescence is the adverse change in the human immune function during aging, leaving older people more prone to an increased risk of infections and morbidity. Acute upper respiratory tract infections (URTIs) are very common among older people, often resulting in continued morbidity and mortality. Therefore, approaches, such as consuming probiotics, that shorten the duration or even reduce the incidence of URTIs in older people are being studied. The aim of this study was to determine the effects of a multi-strain probiotic OMNi-BiOTiC® Active, which contains 11 live probiotic strains, on the incidence, duration, and severity of URTIs in older people. In this randomized double-blinded placebo-controlled study, 95 participants, with an average age of 70.9 years in the probiotic group and 69.6 years in the placebo group, were randomly allocated to two groups: 1010 cfu per day of the multi-strain probiotic intervention OMNi-BiOTiC® Active (49) or placebo (46). The incidence of URTIs in older people after 12 weeks supplementation with OMNi-BiOTiC® showed no statistically significant difference between the two groups (p = 0.5244). However, the duration of the URTI infections was statistically significantly different between the groups (p = 0.011). The participants that consumed the probiotic had an average duration of illness of 3.1 ± 1.6 days, whilst participants that received the placebo had symptoms for an average of 6.0 ± 3.8 days (p = 0.011). Statistically significant differences in lymphocyte counts in both groups after supplementation (p = 0.035 for the probiotic group and p = 0.029 for the placebo group) and between both groups were found (p = 0.009). Statistically significant differences in eosinophil (p = 0.002) and basophil counts (p = 0.001) in the probiotic groups before and after supplementation with probiotics were also found. Supplementation with the multi-strain probiotic OMNi-BiOTiC® Active may benefit older people with URTIs. Larger randomised controlled clinical trials are warranted. Clinical Trial Registration; identifier NCT05879393.
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Affiliation(s)
- Maja Strauss
- Faculty of Health Sciences, University of Maribor, Žitna ulica 15, 2000 Maribor, Slovenia
| | - Dušanka Mičetić Turk
- Faculty of Health Sciences, University of Maribor, Žitna ulica 15, 2000 Maribor, Slovenia
- Faculty of Medicine, University of Maribor, Taborska ulica 8, 2000 Maribor, Slovenia
| | - Mateja Lorber
- Faculty of Health Sciences, University of Maribor, Žitna ulica 15, 2000 Maribor, Slovenia
| | - Maja Šikić Pogačar
- Faculty of Medicine, University of Maribor, Taborska ulica 8, 2000 Maribor, Slovenia
| | - Anton Koželj
- Faculty of Health Sciences, University of Maribor, Žitna ulica 15, 2000 Maribor, Slovenia
| | - Ksenija Tušek Bunc
- Faculty of Medicine, University of Maribor, Taborska ulica 8, 2000 Maribor, Slovenia
- Community Healthcare Center dr. Adolf Drolc Maribor, 2000 Maribor, Slovenia
| | - Sabina Fijan
- Faculty of Health Sciences, University of Maribor, Žitna ulica 15, 2000 Maribor, Slovenia
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21
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Wenger NM, Qiao L, Nicola T, Nizami Z, Martin I, Halloran BA, Tanaka K, Evans M, Xu X, Dinan TG, Kakilla C, DunnGalvin G, Ambalavanan N, Willis KA, Gaggar A, Lal CV. Clinical trial of a probiotic and herbal supplement for lung health. Front Nutr 2023; 10:1168582. [PMID: 37384109 PMCID: PMC10293651 DOI: 10.3389/fnut.2023.1168582] [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: 02/17/2023] [Accepted: 05/24/2023] [Indexed: 06/30/2023] Open
Abstract
Introduction Dysbiosis of the gut microbiome may augment lung disease via the gut-lung axis. Proteobacteria may contribute to tissue proteolysis followed by neutrophil recruitment, lung tissue injury, and perpetuation of chronic inflammation. To study the effects of probiotics across the gut-lung axis, we sought to determine if a Lactobacillus probiotic and herbal blend was safe and well-tolerated in healthy volunteers and asthmatic patients. Methods We conducted a 1-month randomized, open-label clinical trial in Cork, Ireland with healthy and asthmatic patients who took the blend twice a day. The primary endpoint was safety with exploratory endpoints including quality of life, lung function, gut microbiome ecology, and inflammatory biomarkers. Results All subjects tolerated the blend without adverse events. Asthmatic subjects who took the blend showed significant improvements in lung function as measured by forced expiratory volume and serum short chain fatty acid levels from baseline to Week 4. The gut microbiome of asthmatic subjects differed significantly from controls, with the most prominent difference in the relative abundance of the proteobacteria Escherichia coli. Administration of the probiotic maintained overall microbial community architecture with the only significant difference being an increase in absolute abundance of the probiotic strains measured by strain-specific PCR. Conclusion This study supports the safety and efficacy potential of a Lactobacillus probiotic plus herbal blend to act on the gut-lung axis. However, due to the lack of a control group, a longer blinded, placebo-controlled study will be warranted to confirm the efficacy improvements observed in this trial. Clinical trial registration https://clinicaltrials.gov/, identifier NCT05173168.
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Affiliation(s)
- Nancy M. Wenger
- Division of Neonatology, Department of Pediatrics, University of Alabama at Birmingham, Birmingham, AL, United States
| | - Luhua Qiao
- Division of Neonatology, Department of Pediatrics, University of Alabama at Birmingham, Birmingham, AL, United States
| | - Teodora Nicola
- Division of Neonatology, Department of Pediatrics, University of Alabama at Birmingham, Birmingham, AL, United States
| | - Zoha Nizami
- Division of Neonatology, Department of Pediatrics, University of Alabama at Birmingham, Birmingham, AL, United States
| | - Isaac Martin
- Division of Neonatology, Department of Pediatrics, University of Alabama at Birmingham, Birmingham, AL, United States
| | - Brian A. Halloran
- Division of Neonatology, Department of Pediatrics, University of Alabama at Birmingham, Birmingham, AL, United States
| | - Kosuke Tanaka
- Division of Neonatology, Department of Pediatrics, University of Alabama at Birmingham, Birmingham, AL, United States
| | - Michael Evans
- Division of Neonatology, Department of Pediatrics, University of Alabama at Birmingham, Birmingham, AL, United States
| | - Xin Xu
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, University of Alabama at Birmingham, Birmingham, AL, United States
- Program in Protease and Matrix Biology, University of Alabama at Birmingham, Birmingham, AL, United States
| | | | | | | | - Namasivayam Ambalavanan
- Division of Neonatology, Department of Pediatrics, University of Alabama at Birmingham, Birmingham, AL, United States
| | - Kent A. Willis
- Division of Neonatology, Department of Pediatrics, University of Alabama at Birmingham, Birmingham, AL, United States
| | - Amit Gaggar
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, University of Alabama at Birmingham, Birmingham, AL, United States
- Program in Protease and Matrix Biology, University of Alabama at Birmingham, Birmingham, AL, United States
| | - Charitharth Vivek Lal
- Division of Neonatology, Department of Pediatrics, University of Alabama at Birmingham, Birmingham, AL, United States
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22
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Cheong KL, Chen S, Teng B, Veeraperumal S, Zhong S, Tan K. Oligosaccharides as Potential Regulators of Gut Microbiota and Intestinal Health in Post-COVID-19 Management. Pharmaceuticals (Basel) 2023; 16:860. [PMID: 37375807 DOI: 10.3390/ph16060860] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2023] [Revised: 06/05/2023] [Accepted: 06/07/2023] [Indexed: 06/29/2023] Open
Abstract
The COVID-19 pandemic has had a profound impact worldwide, resulting in long-term health effects for many individuals. Recently, as more and more people recover from COVID-19, there is an increasing need to identify effective management strategies for post-COVID-19 syndrome, which may include diarrhea, fatigue, and chronic inflammation. Oligosaccharides derived from natural resources have been shown to have prebiotic effects, and emerging evidence suggests that they may also have immunomodulatory and anti-inflammatory effects, which could be particularly relevant in mitigating the long-term effects of COVID-19. In this review, we explore the potential of oligosaccharides as regulators of gut microbiota and intestinal health in post-COVID-19 management. We discuss the complex interactions between the gut microbiota, their functional metabolites, such as short-chain fatty acids, and the immune system, highlighting the potential of oligosaccharides to improve gut health and manage post-COVID-19 syndrome. Furthermore, we review evidence of gut microbiota with angiotensin-converting enzyme 2 expression for alleviating post-COVID-19 syndrome. Therefore, oligosaccharides offer a safe, natural, and effective approach to potentially improving gut microbiota, intestinal health, and overall health outcomes in post-COVID-19 management.
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Affiliation(s)
- Kit-Leong Cheong
- Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Guangdong Province Engineering Laboratory for Marine Biological Products, Guangdong Provincial Engineering Technology Research Center of Seafood, Guangdong Provincial Science and Technology Innovation Center for Subtropical Fruit and Vegetable Processing, College of Food Science and Technology, Guangdong Ocean University, Zhanjiang 524088, China
| | - Shutong Chen
- Department of Biology, College of Science, Shantou University, Shantou 515063, China
| | - Bo Teng
- Department of Biology, College of Science, Shantou University, Shantou 515063, China
| | - Suresh Veeraperumal
- Department of Biology, College of Science, Shantou University, Shantou 515063, China
| | - Saiyi Zhong
- Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Guangdong Province Engineering Laboratory for Marine Biological Products, Guangdong Provincial Engineering Technology Research Center of Seafood, Guangdong Provincial Science and Technology Innovation Center for Subtropical Fruit and Vegetable Processing, College of Food Science and Technology, Guangdong Ocean University, Zhanjiang 524088, China
| | - Karsoon Tan
- Guangxi Key Laboratory of Beibu Gulf Biodiversity Conservation, Beibu Gulf University, Qinzhou 535000, China
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23
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Shi H, Zhao T, Geng R, Sun L, Fan H. The associations between gut microbiota and chronic respiratory diseases: a Mendelian randomization study. Front Microbiol 2023; 14:1200937. [PMID: 37333634 PMCID: PMC10272395 DOI: 10.3389/fmicb.2023.1200937] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Accepted: 05/16/2023] [Indexed: 06/20/2023] Open
Abstract
Introduction Growing evidence indicates that variations in the composition of the gut microbiota are linked to the onset and progression of chronic respiratory diseases (CRDs), albeit the causal relationship between the two remains unclear. Methods We conducted a comprehensive two-sample Mendelian randomization (MR) analysis to investigate the relationship between gut microbiota and five main CRDs, including chronic obstructive pulmonary disease (COPD), asthma, idiopathic pulmonary fibrosis (IPF), sarcoidosis, and pneumoconiosis. For MR analysis, the inverse variance weighted (IVW) method was utilized as the primary method. The MR-Egger, weighted median, and MR-PRESSO statistical methods were used as a supplement. To detect heterogeneity and pleiotropy, the Cochrane and Rucker Q test, MR-Egger intercept test, and MR-PRESSO global test were then implemented. The leave-one-out strategy was also applied to assess the consistency of the MR results. Results Based on substantial genetic data obtained from genome-wide association studies (GWAS) comprising 3,504,473 European participants, our study offers evidence that several gut microbial taxa, including 14 probable microbial taxa (specifically, 5, 3, 2, 3 and 1 for COPD, asthma, IPF, sarcoidosis, and pneumoconiosis, respectively) and 33 possible microbial taxa (specifically, 6, 7, 8, 7 and 5 for COPD, asthma, IPF, sarcoidosis, and pneumoconiosis, respectively) play significant roles in the formation of CRDs. Discussion This work implies causal relationships between the gut microbiota and CRDs, thereby shedding new light on the gut microbiota-mediated prevention of CRDs.
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Affiliation(s)
- Hanyu Shi
- Department of Internal Medicine, Hospital of the First Mobile Corps of the Chinese People’s Armed Police Force, Dingzhou, Hebei, China
| | - Tong Zhao
- Department of Internal Medicine, Hospital of the First Mobile Corps of the Chinese People’s Armed Police Force, Dingzhou, Hebei, China
| | - RuiHui Geng
- Department of Internal Medicine, Hospital of the First Mobile Corps of the Chinese People’s Armed Police Force, Dingzhou, Hebei, China
| | - Liang Sun
- Department of Pulmonary and Critical Care, Characteristic Medical Center of the Chinese People’s Armed Police Force, Tianjin, China
| | - Haojun Fan
- Institute of Disaster and Emergency Medicine, Tianjin University, Tianjin, China
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Oh S, Seo H. Dietary intervention with functional foods modulating gut microbiota for improving the efficacy of COVID-19 vaccines. Heliyon 2023; 9:e15668. [PMID: 37124341 PMCID: PMC10121067 DOI: 10.1016/j.heliyon.2023.e15668] [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: 01/06/2023] [Revised: 04/17/2023] [Accepted: 04/18/2023] [Indexed: 05/02/2023] Open
Abstract
Dysbiosis of the gut microbiota with aging contributes to a reduction in important cross-feeding bacterial reactions in the gut and immunosenescence, which could contribute to a decrease in vaccine efficacy. Fever, cough, and fatigue are the main signs of coronavirus disease 2019 (COVID-19); however, some patients with COVID-19 present with gastrointestinal symptoms. COVID-19 vaccination against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is one of the best measures to reduce SARS-CoV-2 infection rates and the severity of COVID-19. The immunogenicity of COVID-19 vaccines is influenced by the composition of the gut microbiota, and the immune response to COVID-19 vaccines decreases with age. In this review, we discuss gut microbiota dysbiosis and immunosenescence in the older adults, the role of gut microbiota in improving the efficacy of COVID-19 vaccines, and dietary interventions to improve the efficacy of COVID-19 vaccines in the older adults.
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Affiliation(s)
- Soyoung Oh
- Infectious Disease Research Center, Citizen's Health Bureau, Seoul Metropolitan Government, 110, Sejong-daero, Jung-gu, Seoul, 04524, Republic of Korea
| | - Haesook Seo
- Infectious Disease Research Center, Citizen's Health Bureau, Seoul Metropolitan Government, 110, Sejong-daero, Jung-gu, Seoul, 04524, Republic of Korea
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25
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Xie Y, Zhang Y, Wang T, Liu Y, Ma J, Wu S, Duan C, Qiao W, Cheng K, Lu L, Zhuang R, Bian K. Ablation of CD226 on CD4+ T cells modulates asthma progress associated with altered IL-10 response and gut microbiota. Int Immunopharmacol 2023; 118:110051. [PMID: 36989896 DOI: 10.1016/j.intimp.2023.110051] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Revised: 03/06/2023] [Accepted: 03/15/2023] [Indexed: 03/29/2023]
Abstract
To investigate the role of the costimulatory molecule CD226 in asthma pathogenesis, we produced a CD4+ T-cell-specific CD226 knockout mice model (Cd226ΔCD4) and induced airway allergic inflammation by administering ovalbumin (OVA). Our results revealed alleviated lung inflammation, decreased levels of OVA-specific IgE, and increased levels of IL-10 in the serum of Cd226ΔCD4 mice (P < 0.05). Moreover, IL-10 levels in CD4+ T cells were significantly elevated in the mediastinal lymph node, spleen, and Peyer's patches in the Cd226ΔCD4 mice compared with those in controls (P < 0.05 to P < 0.01). Notably, there was a significantly higher IL-10 mRNA levels in the large intestine of the mice (P < 0.05). The protective effect of CD226 deficiency is also associated with the accumulation of gut TCRγδ+ intraepithelial lymphocytes and reversion of the gut microbiome dysbiosis. The Bacteroidetes-to-Firmicutes ratio and the abundance of Akkermansia increased in the absence of CD226 after OVA treatment. Our data reveal the synchronous changes in the lung and intestine in OVA-treated CD226-knockout mice, supporting the gut-lung axis concept and providing evidence for novel therapeutic approaches for asthma.
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Li J, Chen Y, Shi Q, Sun J, Zhang C, Liu L. Omega-3 polyunsaturated fatty acids ameliorate PM2.5 exposure induced lung injury in mice through remodeling the gut microbiota and modulating the lung metabolism. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:40490-40506. [PMID: 36609968 PMCID: PMC9822699 DOI: 10.1007/s11356-022-25111-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/17/2022] [Accepted: 12/29/2022] [Indexed: 06/17/2023]
Abstract
Short-term or long-term exposure to fine particulate matter (PM2.5) is related to increased incidences of respiratory diseases. This study aimed to investigate the influences of omega-3 polyunsaturated fatty acids (ω-3 PUFAs) supplementation on oxidative stress, inflammation, lung metabolic profile, and gut microbiota in PM2.5-induced lung injury mice. Mice were divided into four groups (n = 15, per group): two unsupplemented groups, control group and PM2.5 group, and two supplemented groups with ω-3 PUFAs, ω-3 PUFAs group, and ω-3 PUFAs + PM2.5 group. Mice in the supplemented groups were placed on an ω-3 PUFAs-enriched diet (ω-3 PUFAs, 21 g/kg). During the 5th to 6th week of dietary supplementation, mice were exposed to PM2.5 by intra-tracheal instillation. ω-3 PUFAs ameliorate lung histopathological injury, reduce inflammatory responses and oxidative stress, affect lung metabolite profile, and modulate gut microbiota in PM2.5-induced lung injury mice. Thus, supplementary ω-3 PUFAs showed effectiveness in attenuation of PM2.5-induced lung injury, indicating that the interventions exhibited preventive and therapeutic potential.
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Affiliation(s)
- Jingli Li
- Department of Pulmonary and Critical Care Medicine, Shaoxing People's Hospital, Shaoxing, 312000, Zhejiang, China
| | - Yang Chen
- Department of Critical Care Medicine, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, 310006, Zhejiang, China
| | - Qiangqiang Shi
- Department of Respiratory Medicine, Affiliated Dongyang Hospital of Wenzhou Medical University, Dongyang, 322100, Zhejiang, China
| | - Jian Sun
- Department of Pulmonary and Critical Care Medicine, Shaoxing People's Hospital, Shaoxing, 312000, Zhejiang, China
| | - Chunyi Zhang
- Department of Pulmonary and Critical Care Medicine, Shaoxing People's Hospital, Shaoxing, 312000, Zhejiang, China
| | - Lingjing Liu
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, Zhejiang, China.
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Stefania C, Angela B, Stefania C, Antonio C, Andrea AS, Gianrocco M, Tiziana S, Luca RB. Idiopathic pulmonary fibrosis and intestinal disorders: An observational study. Ann Diagn Pathol 2023; 62:152072. [PMID: 36529590 DOI: 10.1016/j.anndiagpath.2022.152072] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Revised: 11/24/2022] [Accepted: 11/28/2022] [Indexed: 12/12/2022]
Abstract
BACKGROUND AND AIM Idiopathic pulmonary fibrosis (IPF) is a chronic respiratory disease characterized by a progressive decline in lung function and a specific histopathologic pattern defined as usual interstitial pneumonia. Early diagnosis and new therapeutic protocols have contributed to a reduction in disease progression. Thus, some patients may develop extrapulmonary diseases including malignancies and chronic pathologies. The aim of this study was to investigate the frequency of intestinal disorders such as polyps, colorectal carcinoma (CRC), and chronic inflammatory bowel disease (IBD) in patients with IPF. METHODS From the database of 189 patients with IPF (148 males, 78.3 %; 41 females, 21.7 %) residing in the district of Modena, we identified 44 patients (36 males, 81.8 %; 8 females, 18.2 %) with a histologically confirmed intestinal disease. RESULTS Intestinal polyps were detected in 41 cases (93.2 %), of which 4 were associated with CRC and 1 with IBD; 1 patient had only CRC (2.3 %), and 2 patients had only IBD (4.5 %). Both males and females developed bowel disease, but males seemed to have a higher number of polyps and high-grade adenomas with a predisposition to malignant transformation. CONCLUSIONS As patients with IPF may present with intestinal diseases that can evolve into malignancies in some cases, they should undergo appropriate follow-up and targeted colorectal screening. Thus, colorectal pathologies should not take a back seat. These preliminary results encourage further research to select suitable patients for specific diagnostic and therapeutic procedures in order to prolong survival and improve the quality of life.
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Affiliation(s)
- Caramaschi Stefania
- Department of Medical and Surgical Sciences for Children and Adults, University of Modena and Reggio Emilia, University Hospital of Modena, Modena, Italy
| | - Bertani Angela
- Department of Specialized Medicine, Gastroenterology Unit, University Hospital of Modena, Modena, Italy
| | - Cerri Stefania
- Center for Rare Lung Disease, Department of Specialized Medicine, Respiratory Disease Unit, University Hospital of Modena, Modena, Italy
| | - Colecchia Antonio
- Department of Specialized Medicine, Gastroenterology Unit, University Hospital of Modena, Modena, Italy
| | | | - Manco Gianrocco
- Department of Surgery, University Hospital of Modena, Modena, Italy
| | | | - Reggiani Bonetti Luca
- Department of Medical and Surgical Sciences for Children and Adults, University of Modena and Reggio Emilia, University Hospital of Modena, Modena, Italy
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Le Guern R, Grandjean T, Stabler S, Bauduin M, Gosset P, Kipnis É, Dessein R. Gut colonisation with multidrug-resistant Klebsiella pneumoniae worsens Pseudomonas aeruginosa lung infection. Nat Commun 2023; 14:78. [PMID: 36604442 PMCID: PMC9816093 DOI: 10.1038/s41467-022-35767-4] [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: 12/18/2021] [Accepted: 12/28/2022] [Indexed: 01/07/2023] Open
Abstract
Carbapenemase-producing Enterobacterales (CPE) are spreading rapidly in hospital settings. Asymptomatic CPE gut colonisation may be associated with dysbiosis and gut-lung axis alterations, which could impact lung infection outcomes. In this study, in male C57BL/6JRj mice colonised by CPE, we characterise the resulting gut dysbiosis, and analyse the lung immune responses and outcomes of subsequent Pseudomonas aeruginosa lung infection. Asymptomatic gut colonisation by CPE leads to a specific gut dysbiosis and increases the severity of P. aeruginosa lung infection through lower numbers of alveolar macrophages and conventional dendritic cells. CPE-associated dysbiosis is characterised by a near disappearance of the Muribaculaceae family and lower levels of short-chain fatty acids. Faecal microbiota transplantation restores immune responses and outcomes of lung infection outcomes, demonstrating the involvement of CPE colonisation-induced gut dysbiosis in altering the immune gut-lung axis, possibly mediated by microbial metabolites such as short-chain fatty acids.
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Affiliation(s)
- Rémi Le Guern
- Univ. Lille, CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, U1019 - UMR 9017 - CIIL - Center for Infection and Immunity of Lille, F-59000, Lille, France.
| | - Teddy Grandjean
- Univ. Lille, CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, U1019 - UMR 9017 - CIIL - Center for Infection and Immunity of Lille, F-59000, Lille, France
| | - Sarah Stabler
- Univ. Lille, CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, U1019 - UMR 9017 - CIIL - Center for Infection and Immunity of Lille, F-59000, Lille, France
| | - Marvin Bauduin
- Univ. Lille, CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, U1019 - UMR 9017 - CIIL - Center for Infection and Immunity of Lille, F-59000, Lille, France
| | - Philippe Gosset
- Univ. Lille, CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, U1019 - UMR 9017 - CIIL - Center for Infection and Immunity of Lille, F-59000, Lille, France
| | - Éric Kipnis
- Univ. Lille, CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, U1019 - UMR 9017 - CIIL - Center for Infection and Immunity of Lille, F-59000, Lille, France
| | - Rodrigue Dessein
- Univ. Lille, CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, U1019 - UMR 9017 - CIIL - Center for Infection and Immunity of Lille, F-59000, Lille, France
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Ye S, Wang L, Li S, Ding Q, Wang Y, Wan X, Ji X, Lou Y, Li X. The correlation between dysfunctional intestinal flora and pathology feature of patients with pulmonary tuberculosis. Front Cell Infect Microbiol 2022; 12:1090889. [PMID: 36619765 PMCID: PMC9811264 DOI: 10.3389/fcimb.2022.1090889] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2022] [Accepted: 11/28/2022] [Indexed: 12/24/2022] Open
Abstract
Introduction Recent studies have provided insights into the important contribution of gut microbiota in the development of Pulmonary Tuberculosis (PTB). As a chronic consumptive infectious disease, PTB involves many pathological characteristics. At present, research on intestinal flora and clinical pathological Index of PTB is still rare. Methods We performed a cross-sectional study in 63 healthy controls (HCs) and 69 patients with untreated active PTB to assess the differences in their microbiota in feces via 16S rRNA gene sequencing. Results Significant alteration of microbial taxonomic and functional capacity was observed in PTB as compared to the HCs. The results showed that the alpha diversity indexes of the PTB patients were lower than the HCs (P<0.05). Beta diversity showed differences between the two groups (P<0.05). At the genus level, the relative abundance of Bacteroides, Parabacteroides and Veillonella increased, while Faecalibacterium, Bifidobacterium, Agathobacter and CAG-352 decreased significantly in the PTB group, when compared with the HCs. The six combined genera, including Lactobacillus, Faecalibacterium, Roseburia, Dorea, Monnoglobus and [Eubacterium]_ventriosum_group might be a set of diagnostic biomarkers for PTB (AUC=0.90). Besides, the predicted bacterial functional pathway had a significant difference between the two groups (P<0.05), which was mainly related to the nutrient metabolism pathway. Significant alterations in the biochemical index were associated with changes in the relative abundance of specific bacteria, the short chain fatty acid (SCFA)-producing bacteria enriched in HCs had a positively correlated with most of the biochemical indexes. Discussion Our study indicated that the gut microbiota in PTB patients was significantly different from HCs as characterized by the composition and metabolic pathway, which related to the change of biochemical indexes in the PTB group. It was hypothesized that the abovementioned changes in the gut microbiota could exert an impact on the clinical characteristics of PTB through the regulation of the nutrient utilization pathway of the host by way of the gut-lung axis.
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Affiliation(s)
- Shiqing Ye
- Wenzhou Key Laboratory of Sanitary Microbiology, Key Laboratory of Laboratory Medicine, Ministry of Education, China, Zhejiang Provincial Key Laboratory of Medical Genetics, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China,Colorectal Cancer Research Center, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Liang Wang
- Wenzhou Key Laboratory of Sanitary Microbiology, Key Laboratory of Laboratory Medicine, Ministry of Education, China, Zhejiang Provincial Key Laboratory of Medical Genetics, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China,Colorectal Cancer Research Center, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Shengkai Li
- Wenzhou Key Laboratory of Sanitary Microbiology, Key Laboratory of Laboratory Medicine, Ministry of Education, China, Zhejiang Provincial Key Laboratory of Medical Genetics, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China,Colorectal Cancer Research Center, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Qingyong Ding
- Wenzhou Key Laboratory of Sanitary Microbiology, Key Laboratory of Laboratory Medicine, Ministry of Education, China, Zhejiang Provincial Key Laboratory of Medical Genetics, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China,Colorectal Cancer Research Center, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Yu Wang
- Wenzhou Key Laboratory of Sanitary Microbiology, Key Laboratory of Laboratory Medicine, Ministry of Education, China, Zhejiang Provincial Key Laboratory of Medical Genetics, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China,Colorectal Cancer Research Center, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Xinxin Wan
- Wenzhou Key Laboratory of Sanitary Microbiology, Key Laboratory of Laboratory Medicine, Ministry of Education, China, Zhejiang Provincial Key Laboratory of Medical Genetics, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China,Colorectal Cancer Research Center, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Xiaoyun Ji
- Wenzhou Key Laboratory of Sanitary Microbiology, Key Laboratory of Laboratory Medicine, Ministry of Education, China, Zhejiang Provincial Key Laboratory of Medical Genetics, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China,Colorectal Cancer Research Center, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Yongliang Lou
- Wenzhou Key Laboratory of Sanitary Microbiology, Key Laboratory of Laboratory Medicine, Ministry of Education, China, Zhejiang Provincial Key Laboratory of Medical Genetics, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China,Colorectal Cancer Research Center, Wenzhou Medical University, Wenzhou, Zhejiang, China,*Correspondence: Xiang Li, ; Yongliang Lou,
| | - Xiang Li
- Wenzhou Key Laboratory of Sanitary Microbiology, Key Laboratory of Laboratory Medicine, Ministry of Education, China, Zhejiang Provincial Key Laboratory of Medical Genetics, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China,Colorectal Cancer Research Center, Wenzhou Medical University, Wenzhou, Zhejiang, China,*Correspondence: Xiang Li, ; Yongliang Lou,
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The Role of Gut Bacteriome in Asthma, Chronic Obstructive Pulmonary Disease and Obstructive Sleep Apnoea. Microorganisms 2022; 10:microorganisms10122457. [PMID: 36557710 PMCID: PMC9781820 DOI: 10.3390/microorganisms10122457] [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: 10/29/2022] [Revised: 11/30/2022] [Accepted: 12/08/2022] [Indexed: 12/14/2022] Open
Abstract
The human body contains a very complex and dynamic ecosystem of bacteria. The bacteriome interacts with the host bi-directionally, and changes in either factor impact the entire system. It has long been known that chronic airway diseases are associated with disturbances in the lung bacteriome. However, less is known about the role of gut bacteriome in the most common respiratory diseases. Here, we aim to summarise the evidence concerning the role of the intestinal bacteriome in the pathogenesis and disease course of bronchial asthma, chronic obstructive pulmonary disease, and obstructive sleep apnea. Furthermore, we discuss the consequences of an altered gut bacteriome on the most common comorbidities of these lung diseases. Lastly, we also reflect on the therapeutic potential of influencing the gut microbiome to improve disease outcomes.
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Wenger NM, Qiao L, Nicola T, Nizami Z, Xu X, Willis KA, Ambalavanan N, Gaggar A, Lal CV. Efficacy of a Probiotic and Herbal Supplement in Models of Lung Inflammation. Microorganisms 2022; 10:microorganisms10112136. [PMID: 36363728 PMCID: PMC9699185 DOI: 10.3390/microorganisms10112136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Revised: 10/20/2022] [Accepted: 10/27/2022] [Indexed: 01/08/2023] Open
Abstract
Background: Gut microbiome dysbiosis is associated with lung disease through the gut-lung axis. Abundant proteobacteria increase MMP-9 and contribute to tissue proteolysis followed by neutrophil recruitment, lung tissue injury, and perpetuation of chronic lung disease. We sought to determine if a scientifically formulated probiotic and herbal supplement could attenuate neutrophilic inflammation and improve lung structure and function in models of lung inflammation. Methods: For in vitro experiments, epithelial cells exposed to proteobacteria were treated with resB—a blend of three probiotic Lactobacillus strains and turmeric, holy basil, and vasaka herbal extracts. For in vivo experimentation, mice exposed to pulmonary proteobacteria-derived lipopolysaccharide were treated by gavage with resB. Results: In vitro, the bacterial and herbal components of resB decreased activity of the MMP-9 pathway. Mice exposed to LPS and pre- and post-treated with resB had decreased neutrophil recruitment and inflammatory biomarkers in bronchoalveolar lavage fluid, serum, and lung tissue compared to untreated mice. Conclusions: This study describes the mechanisms and efficacy of probiotic and herbal blend in pre-clinical models of lung injury and inflammation.
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Affiliation(s)
| | - Luhua Qiao
- Division of Neonatology, Department of Pediatrics, University of Alabama at Birmingham, Birmingham, AL 35233, USA
| | - Teodora Nicola
- Division of Neonatology, Department of Pediatrics, University of Alabama at Birmingham, Birmingham, AL 35233, USA
| | - Zoha Nizami
- Division of Neonatology, Department of Pediatrics, University of Alabama at Birmingham, Birmingham, AL 35233, USA
| | - Xin Xu
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, University of Alabama at Birmingham, Birmingham, AL 35233, USA
- Program in Protease and Matrix Biology, University of Alabama at Birmingham, Birmingham, AL 35233, USA
| | - Kent A. Willis
- Division of Neonatology, Department of Pediatrics, University of Alabama at Birmingham, Birmingham, AL 35233, USA
| | - Namasivayam Ambalavanan
- Division of Neonatology, Department of Pediatrics, University of Alabama at Birmingham, Birmingham, AL 35233, USA
| | - Amit Gaggar
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, University of Alabama at Birmingham, Birmingham, AL 35233, USA
- Program in Protease and Matrix Biology, University of Alabama at Birmingham, Birmingham, AL 35233, USA
| | - Charitharth Vivek Lal
- Division of Neonatology, Department of Pediatrics, University of Alabama at Birmingham, Birmingham, AL 35233, USA
- Correspondence: ; Tel.: +1-667-295-7372
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Seibert B, Cáceres CJ, Carnaccini S, Cardenas-Garcia S, Gay LC, Ortiz L, Geiger G, Rajao DS, Ottesen E, Perez DR. Pathobiology and dysbiosis of the respiratory and intestinal microbiota in 14 months old Golden Syrian hamsters infected with SARS-CoV-2. PLoS Pathog 2022; 18:e1010734. [PMID: 36279276 PMCID: PMC9632924 DOI: 10.1371/journal.ppat.1010734] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Revised: 11/03/2022] [Accepted: 10/05/2022] [Indexed: 11/06/2022] Open
Abstract
The pandemic of severe acute respiratory syndrome coronavirus 2 (SARS2) affected the geriatric population. Among research models, Golden Syrian hamsters (GSH) are one of the most representative to study SARS2 pathogenesis and host responses. However, animal studies that recapitulate the effects of SARS2 in the human geriatric population are lacking. To address this gap, we inoculated 14 months old GSH with a prototypic ancestral strain of SARS2 and studied the effects on virus pathogenesis, virus shedding, and respiratory and gastrointestinal microbiome changes. SARS2 infection led to high vRNA loads in the nasal turbinates (NT), lungs, and trachea as well as higher pulmonary lesions scores later in infection. Dysbiosis throughout SARS2 disease progression was observed in the pulmonary microbial dynamics with the enrichment of opportunistic pathogens (Haemophilus, Fusobacterium, Streptococcus, Campylobacter, and Johnsonella) and microbes associated with inflammation (Prevotella). Changes in the gut microbial community also reflected an increase in multiple genera previously associated with intestinal inflammation and disease (Helicobacter, Mucispirillum, Streptococcus, unclassified Erysipelotrichaceae, and Spirochaetaceae). Influenza A virus (FLUAV) pre-exposure resulted in slightly more pronounced pathology in the NT and lungs early on (3 dpc), and more notable changes in lungs compared to the gut microbiome dynamics. Similarities among aged GSH and the microbiome in critically ill COVID-19 patients, particularly in the lower respiratory tract, suggest that GSHs are a representative model to investigate microbial changes during SARS2 infection. The relationship between the residential microbiome and other confounding factors, such as SARS2 infection, in a widely used animal model, contributes to a better understanding of the complexities associated with the host responses during viral infections.
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Affiliation(s)
- Brittany Seibert
- Department of Population Health, College of Veterinary Medicine, University of Georgia, Athens, Georgia, United States of America
| | - C. Joaquín Cáceres
- Department of Population Health, College of Veterinary Medicine, University of Georgia, Athens, Georgia, United States of America
| | - Silvia Carnaccini
- Department of Population Health, College of Veterinary Medicine, University of Georgia, Athens, Georgia, United States of America
| | - Stivalis Cardenas-Garcia
- Department of Population Health, College of Veterinary Medicine, University of Georgia, Athens, Georgia, United States of America
| | - L. Claire Gay
- Department of Population Health, College of Veterinary Medicine, University of Georgia, Athens, Georgia, United States of America
| | - Lucia Ortiz
- Department of Population Health, College of Veterinary Medicine, University of Georgia, Athens, Georgia, United States of America
| | - Ginger Geiger
- Department of Population Health, College of Veterinary Medicine, University of Georgia, Athens, Georgia, United States of America
| | - Daniela S. Rajao
- Department of Population Health, College of Veterinary Medicine, University of Georgia, Athens, Georgia, United States of America
| | - Elizabeth Ottesen
- Department of Microbiology, University of Georgia, Athens, Georgia, United States of America
| | - Daniel R. Perez
- Department of Population Health, College of Veterinary Medicine, University of Georgia, Athens, Georgia, United States of America
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Jones RP, Ponomarenko A. Roles for Pathogen Interference in Influenza Vaccination, with Implications to Vaccine Effectiveness (VE) and Attribution of Influenza Deaths. Infect Dis Rep 2022; 14:710-758. [PMID: 36286197 PMCID: PMC9602062 DOI: 10.3390/idr14050076] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Revised: 09/15/2022] [Accepted: 09/15/2022] [Indexed: 08/29/2023] Open
Abstract
Pathogen interference is the ability of one pathogen to alter the course and clinical outcomes of infection by another. With up to 3000 species of human pathogens the potential combinations are vast. These combinations operate within further immune complexity induced by infection with multiple persistent pathogens, and by the role which the human microbiome plays in maintaining health, immune function, and resistance to infection. All the above are further complicated by malnutrition in children and the elderly. Influenza vaccination offers a measure of protection for elderly individuals subsequently infected with influenza. However, all vaccines induce both specific and non-specific effects. The specific effects involve stimulation of humoral and cellular immunity, while the nonspecific effects are far more nuanced including changes in gene expression patterns and production of small RNAs which contribute to pathogen interference. Little is known about the outcomes of vaccinated elderly not subsequently infected with influenza but infected with multiple other non-influenza winter pathogens. In this review we propose that in certain years the specific antigen mix in the seasonal influenza vaccine inadvertently increases the risk of infection from other non-influenza pathogens. The possibility that vaccination could upset the pathogen balance, and that the timing of vaccination relative to the pathogen balance was critical to success, was proposed in 2010 but was seemingly ignored. Persons vaccinated early in the winter are more likely to experience higher pathogen interference. Implications to the estimation of vaccine effectiveness and influenza deaths are discussed.
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Affiliation(s)
- Rodney P Jones
- Healthcare Analysis and Forecasting, Wantage OX12 0NE, UK
| | - Andrey Ponomarenko
- Department of Biophysics, Informatics and Medical Instrumentation, Odessa National Medical University, Valikhovsky Lane 2, 65082 Odessa, Ukraine
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Intestinal Klebsiella pneumoniae Contributes to Pneumonia by Synthesizing Glutamine in Multiple Myeloma. Cancers (Basel) 2022; 14:cancers14174188. [PMID: 36077725 PMCID: PMC9454521 DOI: 10.3390/cancers14174188] [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: 07/28/2022] [Revised: 08/22/2022] [Accepted: 08/23/2022] [Indexed: 11/16/2022] Open
Abstract
Pneumonia accounts for a significant cause of morbidity and mortality in multiple myeloma (MM) patients. It has been previously shown that intestinal Klebsiella pneumonia (K. pneumonia) enriches in MM and promotes MM progression. However, what role the altered gut microbiota plays in MM with pneumonia remains unknown. Here, we show that intestinal K. pneumonia is significantly enriched in MM with pneumonia. This enriched intestinal K. pneumonia links to the incidence of pneumonia in MM, and intestinal colonization of K. pneumonia contributes to pneumonia in a 5TGM1 MM mice model. Further targeted metabolomic assays reveal the elevated level of glutamine, which is consistently increased with the enrichment of K. pneumonia in MM mice and patients, is synthesized by K. pneumonia, and leads to the elevated secretion of TNF-α in the lung normal fibroblast cells for the higher incidence of pneumonia. Inhibiting glutamine synthesis by establishing glnA-mutated K. pneumonia alleviates the incidence of pneumonia in the 5TGM1 MM mice model. Overall, our work proposes that intestinal K. pneumonia indirectly contributes to pneumonia in MM by synthesizing glutamine. Altogether, we unveil a gut–lung axis in MM with pneumonia and establish a novel mechanism and a possible intervention strategy for MM with pneumonia.
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Caruso C, Ligotti ME, Accardi G, Aiello A, Candore G. An immunologist's guide to immunosenescence and its treatment. Expert Rev Clin Immunol 2022; 18:961-981. [PMID: 35876758 DOI: 10.1080/1744666x.2022.2106217] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
INTRODUCTION : The ageing process causes several changes in the immune system, although immune ageing is strongly influenced by individual immunological history, as well as genetic and environmental factors leading to inter-individual variability. AREAS COVERED : Here, we focused on the biological and clinical meaning of immunosenescence. Data on SARS-CoV-2 and Yellow Fever vaccine have demonstrated the clinical relevance of immunosenescence, while inconsistent results, obtained from longitudinal studies aimed at looking for immune risk phenotypes, have revealed that the immunosenescence process is highly context-dependent. Large projects have allowed the delineation of the drivers of immune system variance, including genetic and environmental factors, sex, smoking, and co-habitation. Therefore, it is difficult to identify the interventions that can be envisaged to maintain or improve immune function in older people. That suggests that drug treatment of immunosenescence should require personalized intervention. Regarding this, we discussed the role of changes in lifestyle as a potential therapeutic approach. EXPERT OPINION : Our review points out that age is only part of the problem of immunosenescence. Everyone ages differently because he/she is unique in genetics and experience of life and this applies even more to the immune system (immunobiography). Finally, the present review shows how appreciable results in the modification of immunosenescence biomarkers can be achieved with lifestyle modification.
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Affiliation(s)
- Calogero Caruso
- Laboratorio di Immunopatologia e Immunosenescenza, Dipartimento di Biomedicina, Neuroscienze e Diagnostica Avanzata, Università di Palermo, Palermo, Italy
| | - Mattia Emanuela Ligotti
- Laboratorio di Immunopatologia e Immunosenescenza, Dipartimento di Biomedicina, Neuroscienze e Diagnostica Avanzata, Università di Palermo, Palermo, Italy
| | - Giulia Accardi
- Laboratorio di Immunopatologia e Immunosenescenza, Dipartimento di Biomedicina, Neuroscienze e Diagnostica Avanzata, Università di Palermo, Palermo, Italy
| | - Anna Aiello
- Laboratorio di Immunopatologia e Immunosenescenza, Dipartimento di Biomedicina, Neuroscienze e Diagnostica Avanzata, Università di Palermo, Palermo, Italy
| | - Giuseppina Candore
- Laboratorio di Immunopatologia e Immunosenescenza, Dipartimento di Biomedicina, Neuroscienze e Diagnostica Avanzata, Università di Palermo, Palermo, Italy
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Kishida S, Kato-Mori Y, Okamoto M, Hagiwara K. Anti-inflammatory effect a specific Lactiplantibacillus plantarum in an ovalbumin-induced asthma model. Microbiol Immunol 2022; 66:442-452. [PMID: 35674213 DOI: 10.1111/1348-0421.13014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Revised: 05/13/2022] [Accepted: 06/02/2022] [Indexed: 11/29/2022]
Abstract
Autoimmune, allergic, and respiratory inflammatory diseases are some of the most important health issues worldwide. Disorders of the gut microbiota have been associated with the induction of allergic and inflammatory diseases, and probiotics are being tested for disease prevention. We examined functional Lactiplantibacillus plantarum RGU (Lp-1) to mice with ovalbumin (OVA)-induced asthma model to elucidate the inhibitory effect on pathological progression in asthma model. Prior to the experiments, the intestinal lactic acid bacteria were reduced by administering multiple antibiotics (MAB) to evaluate the administration effect of lactic acid bacteria. Mice were administered with Lp-1 or comparative control lactic acid bacteria in each group. After that, OVA-induced asthma was induced, and cytokine gene expression and histological findings were compared. Exacerbation of lung lesions was confirmed in the MAB group. The Lp-1 group mice had alleviated lung lesions with a decrease in IL-1β, IL-13, IL-17 and an increase in IL-10 of the splenocytes and bronchial lymph nodes compared with the MAB group, but not in the other groups. In OVA-induced asthma, administration of specific Lactiplantibacillus was confirmed to induce anti-inflammatory cytokines.
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Affiliation(s)
- Shigefumi Kishida
- Department of Pathobiology, Graduate School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Hokkaido, Japan
| | - Yuko Kato-Mori
- Graduate School of Science, Technology and Innovation, Kobe University, Kobe, Japan
| | - Minoru Okamoto
- Department of Pathobiology, Graduate School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Hokkaido, Japan
| | - Katsuro Hagiwara
- Department of Pathobiology, Graduate School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Hokkaido, Japan
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Giron M, Thomas M, Dardevet D, Chassard C, Savary-Auzeloux I. Gut microbes and muscle function: can probiotics make our muscles stronger? J Cachexia Sarcopenia Muscle 2022; 13:1460-1476. [PMID: 35278043 PMCID: PMC9178375 DOI: 10.1002/jcsm.12964] [Citation(s) in RCA: 72] [Impact Index Per Article: 36.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Revised: 01/07/2022] [Accepted: 02/03/2022] [Indexed: 12/20/2022] Open
Abstract
Evidence suggests that gut microbiota composition and diversity can be a determinant of skeletal muscle metabolism and functionality. This is true in catabolic (sarcopenia and cachexia) or anabolic (exercise or in athletes) situations. As gut microbiota is known to be causal in the development and worsening of metabolic dysregulation phenotypes such as obesity or insulin resistance, it can regulate, at least partially, skeletal muscle mass and function. Skeletal muscles are physiologically far from the gut. Signals generated by the gut due to its interaction with the gut microbiome (microbial metabolites, gut peptides, lipopolysaccharides, and interleukins) constitute links between gut microbiota activity and skeletal muscle and regulate muscle functionality via modulation of systemic/tissue inflammation as well as insulin sensitivity. The probiotics able to limit sarcopenia and cachexia or promote health performances in rodents are mainly lactic acid bacteria and bifidobacteria. In humans, the same bacteria have been tested, but the scarcity of the studies, the variability of the populations, and the difficulty to measure accurately and with high reproducibility muscle mass and function have not allowed to highlight specific strains able to optimize muscle mass and function. Further studies are required on more defined population, in order to design personalized nutrition. For elderly, testing the efficiency of probiotics according to the degree of frailty, nutritional state, or degree of sarcopenia before supplementation is essential. For exercise, selection of probiotics capable to be efficient in recreational and/or elite athletes, resistance, and/or endurance exercise would also require further attention. Ultimately, a combination of strategies capable to optimize muscle functionality, including bacteria (new microbes, bacterial ecosystems, or mix, more prone to colonize a specific gut ecosystem) associated with prebiotics and other 'traditional' supplements known to stimulate muscle anabolism (e.g. proteins), could be the best way to preserve muscle functionality in healthy individuals at all ages or patients.
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Affiliation(s)
- Muriel Giron
- Université Clermont Auvergne, INRAE, UNH, Clermont-Ferrand, France.,Université Paris-Saclay, INRAE UMR1319, AgroParisTech, Micalis Institute, Jouy-en-Josas, France.,INRAE UMR0545, Unité Mixte de Recherche sur le Fromage, Aurillac, France
| | - Muriel Thomas
- Université Paris-Saclay, INRAE UMR1319, AgroParisTech, Micalis Institute, Jouy-en-Josas, France
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Abstract
The gut microbiome plays critical roles in human health and disease. Recent studies suggest it may also be associated with chronic pain and postoperative pain outcomes. In animal models, the composition of the gut microbiome changes after general anesthesia and affects the host response to medications, including anesthetics and opioids. In humans, the gut microbiome is associated with the development of postoperative pain and neurocognitive disorders. Additionally, the composition of the gut microbiome has been associated with pain conditions including visceral pain, nociplastic pain, complex regional pain syndrome, and headaches, partly through altered concentration of circulating bacterial-derived metabolites. Furthermore, animal studies demonstrate the critical role of the gut microbiome in neuropathic pain via immunomodulatory mechanisms. This article reviews basic concepts of the human gut microbiome and its interactions with the host and provide a comprehensive overview of the evidence linking the gut microbiome to anesthesiology, critical care, and pain medicine.
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You X, Dadwal UC, Lenburg ME, Kacena MA, Charles JF. Murine Gut Microbiome Meta-analysis Reveals Alterations in Carbohydrate Metabolism in Response to Aging. mSystems 2022; 7:e0124821. [PMID: 35400171 PMCID: PMC9040766 DOI: 10.1128/msystems.01248-21] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Accepted: 03/28/2022] [Indexed: 11/23/2022] Open
Abstract
Compositional and functional alterations to the gut microbiota during aging are hypothesized to potentially impact our health. Thus, determining aging-specific gut microbiome alterations is critical for developing microbiome-based strategies to improve health and promote longevity in the elderly. In this study, we performed a meta-analysis of publicly available 16S rRNA gene sequencing data from studies investigating the effect of aging on the gut microbiome in mice. Aging reproducibly increased gut microbial alpha diversity and shifted the microbial community structure in mice. We applied the bioinformatic tool PICRUSt2 to predict microbial metagenome function and established a random forest classifier to differentiate between microbial communities from young and old hosts and to identify aging-specific metabolic features. In independent validation data sets, this classifier achieved an area under the receiver operating characteristic curve (AUC) of 0.75 to 0.97 in differentiating microbiomes from young and old hosts. We found that 50% of the most important predicted aging-specific metabolic features were involved in carbohydrate metabolism. Furthermore, fecal short-chain fatty acid (SCFA) concentrations were significantly decreased in old mice, and the expression of the SCFA receptor Gpr41 in the colon was significantly correlated with the relative abundances of gut microbes and microbial carbohydrate metabolic pathways. In conclusion, this study identified aging-specific alterations in the composition and function of the gut microbiome and revealed a potential relationship between aging, microbial carbohydrate metabolism, fecal SCFA, and colonic Gpr41 expression. IMPORTANCE Aging-associated microbial alteration is hypothesized to play an important role in host health and longevity. However, investigations regarding specific gut microbes or microbial functional alterations associated with aging have had inconsistent results. We performed a meta-analysis across 5 independent studies to investigate the effect of aging on the gut microbiome in mice. Our analysis revealed that aging increased gut microbial alpha diversity and shifted the microbial community structure. To determine if we could reliably differentiate the gut microbiomes from young and old hosts, we established a random forest classifier based on predicted metagenome function and validated its performance against independent data sets. Alterations in microbial carbohydrate metabolism and decreased fecal short-chain fatty acid (SCFA) concentrations were key features of aging and correlated with host colonic expression of the SCFA receptor Gpr41. This study advances our understanding of the impact of aging on the gut microbiome and proposes a hypothesis that alterations in gut microbiota-derived SCFA-host GPR41 signaling are a feature of aging.
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Affiliation(s)
- Xiaomeng You
- Department of Orthopaedic Surgery, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Ushashi C. Dadwal
- Orthopaedic Surgery, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Marc E. Lenburg
- Department of Medicine, Boston University School of Medicine, Boston, Massachusetts, USA
| | - Melissa A. Kacena
- Orthopaedic Surgery, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Julia F. Charles
- Department of Orthopaedic Surgery, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts, USA
- Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts, USA
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Peng YC, Xu JX, Zeng CF, Zhao XH, You XM, Xu PP, Li LQ, Qi LN. Operable hepatitis B virus-related hepatocellular carcinoma: gut microbiota profile of patients at different ages. ANNALS OF TRANSLATIONAL MEDICINE 2022; 10:477. [PMID: 35571398 PMCID: PMC9096381 DOI: 10.21037/atm-22-1572] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Accepted: 04/20/2022] [Indexed: 11/08/2022]
Abstract
Background Age was important prognostic factors for operable hepatocellular carcinoma patients. The aim of the present study was to assess the difference in gut microbiota in patients with operable hepatitis B virus-related hepatocellular carcinoma (HBV-HCC) at different ages ; to investigate the features of the microbiota and its function associated with different ages; to provide a preliminary look at effects of the gut microbiota dimension on prognostic. Methods From September 2020 to May 2021, patients with HBV-HCC were able to undergo liver resection and were recruited consecutively and divided into the younger age group (age <45 years) (Y.AG) (n=20), middle age group (age from 45 to 65 years) (M.AG) (n=13) 45–65 years, and older age group (age >65 years) (O.AG) (n=20). The relationships between gut microbiota and different ages were explored using 16S rRNA gene sequencing data. PICRUST2 was used to examine the metagenomic data in PHLF patients. Fisher’s exact and Mann-Whitney U-test were used for the data analysis. Results Pairwise comparison between the three groups showed that the α-diversity of Y.AG was significantly higher than that of O.AG (ACE Index, P=0.017; chao1 Index, P=0.031; observed_species Index, P=0.011; and goods_coverage Index, P=0.041). The β-diversity in the 3 groups differed significantly (stress =0.100), while the composition (β-diversity) differed significantly between the Y.AG and the M.AG (stress =0.090), the M.AG and the O.AG (stress =0.095), and the Y.AG and the O.AG (stress =0.099). At the genus level, 7 bacterial genera were significantly enriched in the O.AG compared with the Y.AG, of which Streptococcus, Blautia, Erysipelotrichaceae_UCG-003, and Fusicatenibacter represented the major variances in O.AG microbiomes. Eleven genera were significantly increased in the O.AG, of which Prevotella, Allorhizobium-Neorhizobium-Pararhizobium-Rhizobium, Ruminiclostridium, and Phascolarctobacterium represented the major variances in the O.AG. The Y.AG and the O.AG were predicted by PICRUSt2 analysis, which found 72 pathways related to differential gut microbiome at the genus level. Redundancy analysis showed that 7 environmental factors were significantly correlated with intestinal microorganisms, especially in the Y.AG compared with the O.AG. Conclusions Analysis of gut microbiota characteristics in patients of different ages could ultimately contribute to the development of novel avenues for the treatment of HCC at different ages.
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Affiliation(s)
- Yu-Chong Peng
- Department of Hepatobiliary Surgery, Guangxi Medical University Cancer Hospital, Nanning, China.,Key Laboratory of Early Prevention and Treatment for Regional High Frequency Tumor, Ministry of Education, Nanning, China
| | - Jing-Xuan Xu
- Department of Hepatobiliary Surgery, Guangxi Medical University Cancer Hospital, Nanning, China.,Key Laboratory of Early Prevention and Treatment for Regional High Frequency Tumor, Ministry of Education, Nanning, China
| | - Chuan-Fa Zeng
- Department of Hepatobiliary Surgery, Guangxi Medical University Cancer Hospital, Nanning, China.,Key Laboratory of Early Prevention and Treatment for Regional High Frequency Tumor, Ministry of Education, Nanning, China
| | - Xin-Hua Zhao
- Department of Hepatobiliary Surgery, Guangxi Medical University Cancer Hospital, Nanning, China.,Key Laboratory of Early Prevention and Treatment for Regional High Frequency Tumor, Ministry of Education, Nanning, China
| | - Xue-Mei You
- Department of Hepatobiliary Surgery, Guangxi Medical University Cancer Hospital, Nanning, China.,Key Laboratory of Early Prevention and Treatment for Regional High Frequency Tumor, Ministry of Education, Nanning, China
| | - Ping-Ping Xu
- Department of Hepatobiliary Surgery, Guangxi Medical University Cancer Hospital, Nanning, China.,Key Laboratory of Early Prevention and Treatment for Regional High Frequency Tumor, Ministry of Education, Nanning, China
| | - Le-Qun Li
- Department of Hepatobiliary Surgery, Guangxi Medical University Cancer Hospital, Nanning, China.,Key Laboratory of Early Prevention and Treatment for Regional High Frequency Tumor, Ministry of Education, Nanning, China.,Guangxi Liver Cancer Diagnosis and Treatment Engineering and Technology Research Center, Nanning, China
| | - Lu-Nan Qi
- Department of Hepatobiliary Surgery, Guangxi Medical University Cancer Hospital, Nanning, China.,Key Laboratory of Early Prevention and Treatment for Regional High Frequency Tumor, Ministry of Education, Nanning, China
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Description of a Newly Isolated Blautia faecis Strain and Its Benefit in Mouse Models of Post-Influenza Secondary Enteric and Pulmonary Infections. Nutrients 2022; 14:nu14071478. [PMID: 35406091 PMCID: PMC9003314 DOI: 10.3390/nu14071478] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Revised: 03/28/2022] [Accepted: 03/31/2022] [Indexed: 11/28/2022] Open
Abstract
The expanding knowledge on the systemic influence of the human microbiome suggests that fecal samples are underexploited sources of new beneficial strains for extra-intestinal health. We have recently shown that acetate, a main circulating microbiota-derived molecule, reduces the deleterious effects of pulmonary Streptococcus pneumoniae and enteric Salmonella enterica serovar Typhimurium bacterial post-influenza superinfections. Considering the beneficial and broad effects of acetate, we intended to isolate a commensal strain, producing acetate and potentially exploitable in the context of respiratory infections. We designed successive steps to select intestinal commensals that are extremely oxygen-sensitive, cultivable after a freezing process, without a proinflammatory effect on IL-8 induction, and producing acetate. We have identified the Blautia faecis DSM33383 strain, which decreased the TNFα-induced production of IL-8 by the intestinal epithelial cell line HT-29. The beneficial effect of this bacterial strain was further studied in two preclinical models of post-influenza Streptococcus pneumoniae (S.p) and Salmonella enterica serovar Typhimurium (S.t) superinfection. The intragastrical administration of Blautia faecis DSM33383 led to protection in influenza-infected mice suffering from an S.p. and, to a lesser extent, from an S.t secondary infection. Altogether, this study showed that Blautia faecis DSM33383 could be a promising candidate for preventive management of respiratory infectious diseases.
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Liu B, Yu Y, Zhao M, Xiao K, Yan P, Duan Z, Wang K, Zhao N, Cao J, Wang J, Xie L. Correlation Analysis of the Microbiome and Immune Function in the Lung-Gut Axis of Critically Ill Patients in the ICU. Front Med (Lausanne) 2022; 9:808302. [PMID: 35372413 PMCID: PMC8971608 DOI: 10.3389/fmed.2022.808302] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Accepted: 02/15/2022] [Indexed: 12/18/2022] Open
Abstract
Objective Critical illnesses in the intensive care unit (ICU) have been a global burden. We aimed to determine the correlation between the lung and gut in critically ill patients to find novel evidence of the lung-gut axis, which may be a new treatment for patients with critical illness in the ICU. Methods We collected bronchoalveolar lavage specimens and fecal samples of 31 patients with critical illness within 24 h after admission. Metagenomics was used to detect lung and intestinal samples. Immune cells were detected by flow cytometry. Results There are 86 common species in both lung and gut. The abundance of Enterococcus faecium is high in both the lung and gut of patients with critical illness in the respiratory intensive care unit (RICU). Corynebacterium striatum in the lung and gut is correlated with different immune cells. In addition, C. striatum in the lung and gut might share the same source, supporting the concept of a gut-lung axis in humans. Conclusions The microbiome in the lung and gut showed a correlation to some extent, and C. striatum in the lung and gut might share the same source. In addition, the microbiome showed a correlation with immunity, indicating a potential therapeutic target in patients with critical illness. The lung-gut axis might play an important role in patients with critical illness in the RICU.
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Affiliation(s)
- Bin Liu
- College of Pulmonary and Critical Care Medicine, Chinese PLA General Hospital, Beijing, China
- Medical School of Chinese PLA, Beijing, China
| | - Ying Yu
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Min Zhao
- Pharmaceutical Diagnostics, GE Healthcare, Beijing, China
| | - Kun Xiao
- College of Pulmonary and Critical Care Medicine, Chinese PLA General Hospital, Beijing, China
| | - Peng Yan
- College of Pulmonary and Critical Care Medicine, Chinese PLA General Hospital, Beijing, China
| | - Zhimei Duan
- College of Pulmonary and Critical Care Medicine, Chinese PLA General Hospital, Beijing, China
| | - Kaifei Wang
- College of Pulmonary and Critical Care Medicine, Chinese PLA General Hospital, Beijing, China
| | - Na Zhao
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
- Collaborative Innovation Center of Recovery and Reconstruction of Degraded Ecosystem in Wanjiang Basin Co-founded by Anhui Province and Ministry of Education, School of Ecology and Environment, Anhui Normal University, Wuhu, China
| | - Jiabao Cao
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Jun Wang
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
- University of Chinese Academy of Sciences, Beijing, China
- *Correspondence: Jun Wang
| | - Lixin Xie
- College of Pulmonary and Critical Care Medicine, Chinese PLA General Hospital, Beijing, China
- Lixin Xie
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Gebrayel P, Nicco C, Al Khodor S, Bilinski J, Caselli E, Comelli EM, Egert M, Giaroni C, Karpinski TM, Loniewski I, Mulak A, Reygner J, Samczuk P, Serino M, Sikora M, Terranegra A, Ufnal M, Villeger R, Pichon C, Konturek P, Edeas M. Microbiota medicine: towards clinical revolution. J Transl Med 2022; 20:111. [PMID: 35255932 PMCID: PMC8900094 DOI: 10.1186/s12967-022-03296-9] [Citation(s) in RCA: 100] [Impact Index Per Article: 50.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Accepted: 02/03/2022] [Indexed: 02/07/2023] Open
Abstract
The human gastrointestinal tract is inhabited by the largest microbial community within the human body consisting of trillions of microbes called gut microbiota. The normal flora is the site of many physiological functions such as enhancing the host immunity, participating in the nutrient absorption and protecting the body against pathogenic microorganisms. Numerous investigations showed a bidirectional interplay between gut microbiota and many organs within the human body such as the intestines, the lungs, the brain, and the skin. Large body of evidence demonstrated, more than a decade ago, that the gut microbial alteration is a key factor in the pathogenesis of many local and systemic disorders. In this regard, a deep understanding of the mechanisms involved in the gut microbial symbiosis/dysbiosis is crucial for the clinical and health field. We review the most recent studies on the involvement of gut microbiota in the pathogenesis of many diseases. We also elaborate the different strategies used to manipulate the gut microbiota in the prevention and treatment of disorders. The future of medicine is strongly related to the quality of our microbiota. Targeting microbiota dysbiosis will be a huge challenge.
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Zhao S, Feng P, Meng W, Jin W, Li X, Li X. Modulated Gut Microbiota for Potential COVID-19 Prevention and Treatment. Front Med (Lausanne) 2022; 9:811176. [PMID: 35308540 PMCID: PMC8927624 DOI: 10.3389/fmed.2022.811176] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Accepted: 02/08/2022] [Indexed: 12/12/2022] Open
Abstract
COVID-19, caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has gained global attention. SARS-CoV-2 identifies and invades human cells via angiotensin-converting enzyme 2 receptors, which is highly expressed both in lung tissues and intestinal epithelial cells. The existence of the gut-lung axis in disease could be profoundly important for both disease etiology and treatment. Furthermore, several studies reported that infected patients suffer from gastrointestinal symptoms. The gut microbiota has a noteworthy effect on the intestinal barrier and affects many aspects of human health, including immunity, metabolism, and the prevention of several diseases. This review highlights the function of the gut microbiota in the host's immune response, providing a novel potential strategy through the use of probiotics, gut microbiota metabolites, and dietary products to enhance the gut microbiota as a target for COVID-19 prevention and treatment.
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Affiliation(s)
- Shuai Zhao
- Intersection Laboratory of Life Medicine, School of Life Sciences, Lanzhou University, Lanzhou, China
| | - Pengya Feng
- Intersection Laboratory of Life Medicine, School of Life Sciences, Lanzhou University, Lanzhou, China
| | - Wenbo Meng
- Medical Frontier Innovation Research Center, Institute of Cancer Neuroscience, The First Hospital of Lanzhou University, The First Clinical Medical College of Lanzhou University, Lanzhou, China
| | - Weilin Jin
- Medical Frontier Innovation Research Center, Institute of Cancer Neuroscience, The First Hospital of Lanzhou University, The First Clinical Medical College of Lanzhou University, Lanzhou, China
| | - Xun Li
- Medical Frontier Innovation Research Center, Institute of Cancer Neuroscience, The First Hospital of Lanzhou University, The First Clinical Medical College of Lanzhou University, Lanzhou, China
| | - Xiangkai Li
- Intersection Laboratory of Life Medicine, School of Life Sciences, Lanzhou University, Lanzhou, China
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Galaris A, Fanidis D, Stylianaki EA, Harokopos V, Kalantzi AS, Moulos P, Dimas AS, Hatzis P, Aidinis V. Obesity Reshapes the Microbial Population Structure along the Gut-Liver-Lung Axis in Mice. Biomedicines 2022; 10:biomedicines10020494. [PMID: 35203702 PMCID: PMC8962327 DOI: 10.3390/biomedicines10020494] [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: 01/03/2022] [Revised: 02/11/2022] [Accepted: 02/17/2022] [Indexed: 11/16/2022] Open
Abstract
The microbiome is emerging as a major player in tissue homeostasis in health and disease. Gut microbiome dysbiosis correlates with several autoimmune and metabolic diseases, while high-fat diets and ensuing obesity are known to affect the complexity and diversity of the microbiome, thus modulating pathophysiology. Moreover, the existence of a gut-liver microbial axis has been proposed, which may extend to the lung. In this context, we systematically compared the microbiomes of the gut, liver, and lung of mice fed a high-fat diet to those of littermates fed a matched control diet. We carried out deep sequencing of seven hypervariable regions of the 16S rRNA microbial gene to examine microbial diversity in the tissues of interest. Comparison of the local microbiomes indicated that lung tissue has the least diverse microbiome under healthy conditions, while microbial diversity in the healthy liver clustered closer to the gut. Obesity increased microbial complexity in all three tissues, with lung microbial diversity being the most modified. Obesity promoted the expansion of Firmicutes along the gut-liver-lung axis, highlighting staphylococcus as a possible pathologic link between obesity and systemic pathophysiology, especially in the lungs.
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Affiliation(s)
- Apostolos Galaris
- Institute of Bioinnovation, Biomedical Sciences Research Center Alexander Fleming, 16672 Athens, Greece; (A.G.); (D.F.); (E.-A.S.); (A.-S.K.); (A.S.D.)
| | - Dionysios Fanidis
- Institute of Bioinnovation, Biomedical Sciences Research Center Alexander Fleming, 16672 Athens, Greece; (A.G.); (D.F.); (E.-A.S.); (A.-S.K.); (A.S.D.)
| | - Elli-Anna Stylianaki
- Institute of Bioinnovation, Biomedical Sciences Research Center Alexander Fleming, 16672 Athens, Greece; (A.G.); (D.F.); (E.-A.S.); (A.-S.K.); (A.S.D.)
| | - Vaggelis Harokopos
- Institute for Fundamental Biomedical Research, Biomedical Sciences Research Center Alexander Fleming, 16672 Athens, Greece; (V.H.); (P.M.); (P.H.)
| | - Alexandra-Styliani Kalantzi
- Institute of Bioinnovation, Biomedical Sciences Research Center Alexander Fleming, 16672 Athens, Greece; (A.G.); (D.F.); (E.-A.S.); (A.-S.K.); (A.S.D.)
| | - Panagiotis Moulos
- Institute for Fundamental Biomedical Research, Biomedical Sciences Research Center Alexander Fleming, 16672 Athens, Greece; (V.H.); (P.M.); (P.H.)
| | - Antigone S. Dimas
- Institute of Bioinnovation, Biomedical Sciences Research Center Alexander Fleming, 16672 Athens, Greece; (A.G.); (D.F.); (E.-A.S.); (A.-S.K.); (A.S.D.)
| | - Pantelis Hatzis
- Institute for Fundamental Biomedical Research, Biomedical Sciences Research Center Alexander Fleming, 16672 Athens, Greece; (V.H.); (P.M.); (P.H.)
| | - Vassilis Aidinis
- Institute of Bioinnovation, Biomedical Sciences Research Center Alexander Fleming, 16672 Athens, Greece; (A.G.); (D.F.); (E.-A.S.); (A.-S.K.); (A.S.D.)
- Correspondence:
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Brain Research Bulletin Special Issue: Brain–body communication in health and diseases Brain–spleen axis in health and diseases: a review and future perspective. Brain Res Bull 2022; 182:130-140. [DOI: 10.1016/j.brainresbull.2022.02.008] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Revised: 02/07/2022] [Accepted: 02/10/2022] [Indexed: 02/06/2023]
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Kim YJ, Lee JY, Lee JJ, Jeon SM, Silwal P, Kim IS, Kim HJ, Park CR, Chung C, Han JE, Choi JW, Tak EJ, Yoo JH, Jeong SW, Kim DY, Ketphan W, Kim SY, Jhun BW, Whang J, Kim JM, Eoh H, Bae JW, Jo EK. Arginine-mediated gut microbiome remodeling promotes host pulmonary immune defense against nontuberculous mycobacterial infection. Gut Microbes 2022; 14:2073132. [PMID: 35579969 PMCID: PMC9116420 DOI: 10.1080/19490976.2022.2073132] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Revised: 04/08/2022] [Accepted: 04/18/2022] [Indexed: 02/06/2023] Open
Abstract
Nontuberculous mycobacterial pulmonary diseases (NTM-PDs) are emerging as global health threats with issues of antibiotic resistance. Accumulating evidence suggests that the gut-lung axis may provide novel candidates for host-directed therapeutics against various infectious diseases. However, little is known about the gut-lung axis in the context of host protective immunity to identify new therapeutics for NTM-PDs. This study was performed to identify gut microbes and metabolites capable of conferring pulmonary immunity to NTM-PDs. Using metabolomics analysis of sera from NTM-PD patients and mouse models, we showed that the levels of l-arginine were decreased in sera from NTM-PD patients and NTM-infected mice. Oral administration of l-arginine significantly enhanced pulmonary antimicrobial activities with the expansion of IFN-γ-producing effector T cells and a shift to microbicidal (M1) macrophages in the lungs of NTM-PD model mice. Mice that received fecal microbiota transplants from l-arginine-treated mice showed increased protective host defense in the lungs against NTM-PD, whereas l-arginine-induced pulmonary host defense was attenuated in mice treated with antibiotics. Using 16S rRNA sequencing, we further showed that l-arginine administration resulted in enrichment of the gut microbiota composition with Bifidobacterium species. Notably, oral treatment with either Bifidobacterium pseudolongum or inosine enhanced antimicrobial pulmonary immune defense against NTM infection, even with multidrug-resistant clinical NTM strains. Our findings indicate that l-arginine-induced gut microbiota remodeling with enrichment of B. pseudolongum boosts pulmonary immune defense against NTM infection by driving the protective gut-lung axis in vivo.
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Affiliation(s)
- Young Jae Kim
- Department of Microbiology, Chungnam National University School of MedicineDaejeon, Korea
- Infection Control Convergence Research Center, Chungnam National University School of MedicineDaejeon, Korea
- Department of Medical Science, Chungnam National University School of MedicineDaejeon, Korea
- Brain Korea 21 FOUR Project for Medical Science, Chungnam National University School of MedicineDaejeon, Korea
| | - June-Young Lee
- Department of Life and Nanopharmaceutical Sciences and Department of Biology, Kyung Hee University, Seoul, Korea
- Department of Biomedical and Pharmaceutical Sciences, Kyung Hee University, Seoul, Korea
| | - Jae Jin Lee
- Department of Molecular Microbiology and Immunology, Keck School of Medicine, University of Southern CaliforniaCA, USA
| | - Sang Min Jeon
- Department of Microbiology, Chungnam National University School of MedicineDaejeon, Korea
- Infection Control Convergence Research Center, Chungnam National University School of MedicineDaejeon, Korea
- Department of Medical Science, Chungnam National University School of MedicineDaejeon, Korea
- Brain Korea 21 FOUR Project for Medical Science, Chungnam National University School of MedicineDaejeon, Korea
| | - Prashanta Silwal
- Department of Microbiology, Chungnam National University School of MedicineDaejeon, Korea
- Infection Control Convergence Research Center, Chungnam National University School of MedicineDaejeon, Korea
| | - In Soo Kim
- Department of Microbiology, Chungnam National University School of MedicineDaejeon, Korea
- Infection Control Convergence Research Center, Chungnam National University School of MedicineDaejeon, Korea
- Department of Medical Science, Chungnam National University School of MedicineDaejeon, Korea
| | - Hyeon Ji Kim
- Department of Microbiology, Chungnam National University School of MedicineDaejeon, Korea
- Infection Control Convergence Research Center, Chungnam National University School of MedicineDaejeon, Korea
- Department of Medical Science, Chungnam National University School of MedicineDaejeon, Korea
| | - Cho Rong Park
- Department of Microbiology, Chungnam National University School of MedicineDaejeon, Korea
- Infection Control Convergence Research Center, Chungnam National University School of MedicineDaejeon, Korea
- Department of Medical Science, Chungnam National University School of MedicineDaejeon, Korea
| | - Chaeuk Chung
- Infection Control Convergence Research Center, Chungnam National University School of MedicineDaejeon, Korea
- Division of Pulmonary and Critical Care, Department of Internal Medicine, Chungnam National University School of MedicineDaejeon, Korea
| | - Jeong Eun Han
- Department of Life and Nanopharmaceutical Sciences and Department of Biology, Kyung Hee University, Seoul, Korea
| | - Jee-Won Choi
- Department of Life and Nanopharmaceutical Sciences and Department of Biology, Kyung Hee University, Seoul, Korea
| | - Euon Jung Tak
- Department of Life and Nanopharmaceutical Sciences and Department of Biology, Kyung Hee University, Seoul, Korea
- Department of Biomedical and Pharmaceutical Sciences, Kyung Hee University, Seoul, Korea
| | - Ji-Ho Yoo
- Department of Biomedical and Pharmaceutical Sciences, Kyung Hee University, Seoul, Korea
| | - Su-Won Jeong
- Department of Life and Nanopharmaceutical Sciences and Department of Biology, Kyung Hee University, Seoul, Korea
| | - Do-Yeon Kim
- Department of Life and Nanopharmaceutical Sciences and Department of Biology, Kyung Hee University, Seoul, Korea
| | - Warisa Ketphan
- Department of Molecular Microbiology and Immunology, Keck School of Medicine, University of Southern CaliforniaCA, USA
| | - Su-Young Kim
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of MedicineSeoul, South Korea
| | - Byung Woo Jhun
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of MedicineSeoul, South Korea
| | - Jake Whang
- Korea Mycobacterium Resource Center (KMRC) & Basic Research Section, The Korean Institute of Tuberculosis (KIT), Cheongju, Korea
| | - Jin-Man Kim
- Department of Pathology, Chungnam National University School of Medicine, Daejeon, Korea
| | - Hyungjin Eoh
- Department of Molecular Microbiology and Immunology, Keck School of Medicine, University of Southern CaliforniaCA, USA
| | - Jin-Woo Bae
- Department of Life and Nanopharmaceutical Sciences and Department of Biology, Kyung Hee University, Seoul, Korea
- Department of Biomedical and Pharmaceutical Sciences, Kyung Hee University, Seoul, Korea
| | - Eun-Kyeong Jo
- Department of Microbiology, Chungnam National University School of MedicineDaejeon, Korea
- Infection Control Convergence Research Center, Chungnam National University School of MedicineDaejeon, Korea
- Department of Medical Science, Chungnam National University School of MedicineDaejeon, Korea
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48
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Meng Z, Chen H, Deng C, Meng S. Potential cellular endocrinology mechanisms underlying the effects of Chinese herbal medicine therapy on asthma. Front Endocrinol (Lausanne) 2022; 13:916328. [PMID: 36051395 PMCID: PMC9424672 DOI: 10.3389/fendo.2022.916328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/09/2022] [Accepted: 07/04/2022] [Indexed: 11/20/2022] Open
Abstract
Asthma is a complex syndrome with polygenetic tendency and multiple phenotypes, which has variable expiratory airflow limitation and respiratory symptoms that vary over time and in intensity. In recent years, continuous industrial development has seriously impacted the climate and air quality at a global scale. It has been verified that climate change can induce asthma in predisposed individuals and that atmospheric pollution can exacerbate asthma severity. At present, a subset of patients is resistant to the drug therapy for asthma. Hence, it is urgent to find new ideas for asthma prevention and treatment. In this review, we discuss the prescription, composition, formulation, and mechanism of traditional Chinese medicine monomer, traditional Chinese medicine monomer complex, single herbs, and traditional Chinese patent medicine in the treatment of asthma. We also discuss the effects of Chinese herbal medicine on asthma from the perspective of cellular endocrinology in the past decade, emphasizing on the roles as intracellular and extracellular messengers of three substances-hormones, substances secreted by pulmonary neuroendocrine cells, and neuroendocrine-related signaling protein-which provide the theoretical basis for clinical application and new drug development.
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Affiliation(s)
- Zeyu Meng
- The Second Clinical Medical College, Heilongjiang University of Chinese Medicine, Harbin, China
| | - Huize Chen
- Department of Traditional Chinese Medicine, Shanghai Jiao Tong University Affiliated Sixth People’s Hospital, Shanghai, China
| | - Chujun Deng
- Department of Traditional Chinese Medicine, Shanghai Jiao Tong University Affiliated Sixth People’s Hospital, Shanghai, China
| | - Shengxi Meng
- Department of Traditional Chinese Medicine, Shanghai Jiao Tong University Affiliated Sixth People’s Hospital, Shanghai, China
- *Correspondence: Shengxi Meng,
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Zhu M, Liu S, Zhao C, Shi J, Li C, Ling S, Cheng J, Dong W, Xu J. Alterations in the gut microbiota of AIDS patients with pneumocystis pneumonia and correlations with the lung microbiota. Front Cell Infect Microbiol 2022; 12:1033427. [PMID: 36339339 PMCID: PMC9634167 DOI: 10.3389/fcimb.2022.1033427] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Accepted: 10/05/2022] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Due to the inability to be cultured in vitro, the biological characteristics and pathogenicity of Pneumocystis jirovecii remain unclear. Intestinal microflora disorder is related to the occurrence and development of various pulmonary diseases. This work explores the pathogenesis of pneumocystis pneumonia (PCP) in acquired immune deficiency syndrome (AIDS) patients from a microbiome perspective, to provide better strategies for the diagnosis, treatment, and prevention of PCP. METHODS Subjects were divided into three groups: human immunodeficiency virus (HIV)-infected patients combined with PCP, HIV-infected patients without PCP, and HIV-negative. Stool and bronchoalveolar lavage fluid (BALF) samples were collected, total DNA was extracted, and 16S rRNA high-throughput sequencing was performed using an Illumina MiSeq platform. PICRUSt and BugBase were used to predict microflora functions, and correlation analysis of intestinal and lung bacterial flora was conducted. RESULTS Compared with the HIV- group, prevotella and another 21 genera in the intestinal microbiome were statistically different in the HIV+ group; 25 genera including Escherichia-Shigella from HIV+PCP+ group were statistically different from HIV+PCP- group. The abundance of Genera such as Porphyromonas was positively or negatively correlated with CD16/CD56+ (μL). Compared with the HIV- group, identification efficiency based on area under the curve (AUC) >0.7 for the HIV+ group identified seven genera in the gut microbiota, including Enterococcus (total AUC = 0.9519). Compared with the HIV+PCP- group, there were no bacteria with AUC >0.7 in the lung or intestine of the HIV+PCP+ group. The number of shared bacteria between BALF and fecal samples was eight species in the HIV- group, 109 species in PCP- patients, and 228 species in PCP+ patients, according to Venn diagram analysis. Changes in various clinical indicators and blood parameters were also closely related to the increase or decrease in the abundance of intestinal and pulmonary bacteria, respectively. CONCLUSIONS HIV infection and PCP significantly altered the species composition of lung and intestinal microbiomes, HIV infection also significantly affected intestinal microbiome gene functions, and PCP exacerbated the changes. The classification model can be used to distinguish HIV+ from HIV- patients, but the efficiency of bacterial classification was poor between PCP+ and PCP- groups. The microbiomes in the lung and gut were correlated to some extent, providing evidence for the existence of a lung-gut axis, revealing a potential therapeutic target in patients with HIV and PCP.
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Affiliation(s)
- Mingli Zhu
- Department of Microbiology and Immunology, School of Basic Medical Sciences, Xi’an Jiaotong University, Xi’an, China
- Department of Microbiology, Hangzhou Xixi Hospital Affiliated to Zhejiang Chinese Medical University, Hangzhou, China
| | - Sai Liu
- Department of Microbiology, Hangzhou Xixi Hospital Affiliated to Zhejiang Chinese Medical University, Hangzhou, China
| | - Chenfei Zhao
- Department of Microbiology, Hangzhou Xixi Hospital Affiliated to Zhejiang Chinese Medical University, Hangzhou, China
- Department of Clinical Laboratory, The First Hospital Affiliated to Zhejiang Chinese Medical University, Hangzhou, China
| | - Jinchuan Shi
- Department of Infectious Diseases, Hangzhou Xixi Hospital Affiliated to Zhejiang Chinese Medical University, Hangzhou, China
| | - Chaodan Li
- Department of Microbiology, Hangzhou Xixi Hospital Affiliated to Zhejiang Chinese Medical University, Hangzhou, China
| | - Shisheng Ling
- Research and Development Department, Assure Tech Institute of Medical Device, Hangzhou, China
| | - Jianghao Cheng
- Department of Microbiology, Hangzhou Xixi Hospital Affiliated to Zhejiang Chinese Medical University, Hangzhou, China
| | - Wenkun Dong
- Research and Development Department, Assure Tech Institute of Medical Device, Hangzhou, China
- *Correspondence: Wenkun Dong, ; Jiru Xu,
| | - Jiru Xu
- Department of Microbiology and Immunology, School of Basic Medical Sciences, Xi’an Jiaotong University, Xi’an, China
- *Correspondence: Wenkun Dong, ; Jiru Xu,
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50
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Ding K, Chen J, Zhan W, Zhang S, Chen Y, Long S, Lei M. Microbiome Links Cigarette Smoke-Induced Chronic Obstructive Pulmonary Disease and Dietary Fiber via the Gut-Lung Axis: A Narrative Review. COPD 2021; 19:10-17. [PMID: 34963421 DOI: 10.1080/15412555.2021.2019208] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Existing comprehensive management strategies for COPD effectively relieve the symptoms of patients, delay the deterioration of lung function, and prevent the progression of COPD through various means and multidisciplinary interventions. However, there has been limited progress in therapies that address the underlying causes of COPD pathogenesis. Recent studies have identified specific changes in the gut and pulmonary microbiota in response to exposure to smoke that can cause or exacerbate CS-COPD by regulating the inflammatory immune response in the lungs through the gut-lung axis. As a convenient and controllable intervention, modifying the diet to include more dietary fiber can effectively improve the prognosis of CS-COPD. Gut microbiota ferment dietary fiber to produce short-chain fatty acids, which connect the microbial communities in the lung and gut mucosa across the gut-lung axis, playing an anti-inflammatory and immunosuppressive role in the lungs. Given that the effect of dietary fiber on gut microbiota was highly similar to that of quitting smoking on gut microbiota, we assume that microbiota might be a potential therapeutic target for dietary fiber to alleviate and prevent CS-COPD. This study examines the similarities between pulmonary and gut microbiota changes in the presence of smoking and dietary fiber. It also highlights the mechanism by which SCFAs link pulmonary and gut microbiota in CS-COPD and analyzes the anti-inflammatory and immunomodulatory effects of short-chain fatty acids on CS-COPD via the gut-lung axis.
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Affiliation(s)
- Kaixi Ding
- Department of Geriatrics, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Jieling Chen
- Department of Respiration, Shehong Hospital of Traditional Chinese Medicine, Shehong, China
| | - Wenling Zhan
- Department of Geriatrics, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Shipeng Zhang
- Department of Geriatrics, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Yi Chen
- Department of Geriatrics, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Sipei Long
- Department of Geriatrics, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Ming Lei
- Department of Geriatrics, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
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