Cited by 121Chronic Obstructive Pulmonary Disease (COPD) ResearchGut microbiota and healthAsthma and respiratory diseases

Fecal microbial transplantation and a high fiber diet attenuates emphysema development by suppressing inflammation and apoptosis

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Jang, Yoon Ok, Lee, Se Hee, Choi, Jong Jin, Kim, Do-Hyun, Choi, Je-Min, Kang, Min-Jong, Oh, Yeon-Mok, Park, Young-Jun +2 more·2020·Experimental & Molecular Medicine

Abstract

Recent work has suggested a microbial dysbiosis association between the lung and gut in respiratory diseases. Here, we demonstrated that gut microbiome modulation attenuated emphysema development. To modulate the gut microbiome, fecal microbiota transplantation (FMT) and diet modification were adopted in mice exposed to smoking and poly I:C for the emphysema model. We analyzed the severity of emphysema by the mean linear intercept (MLI) and apoptosis by the fluorescent TUNEL assay. Microbiome analysis was also performed in feces and fecal extracellular vesicles (EVs). The MLI was significantly increased with smoking exposure. FMT or a high-fiber diet (HFD) attenuated the increase. Weight loss, combined with smoking exposure, was not noted in mice with FMT. HFD significantly decreased macrophages and lymphocytes in bronchoalveolar lavage fluid. Furthermore, IL-6 and IFN-γ were decreased in the bronchoalveolar lavage fluid and serum. The TUNEL score was significantly lower in mice with FMT or HFD, suggesting decreased cell apoptosis. In the microbiome analysis, Bacteroidaceae and Lachnospiraceae, which are alleged to metabolize fiber into short-chain fatty acids (SCFAs), increased at the family level with FMT and HFD. FMT and HFD attenuated emphysema development via local and systemic inhibition of inflammation and changes in gut microbiota composition, which could provide a new paradigm in COPD treatment.

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Authors
Jang, Y. O., Lee, S. H., Choi, J. J., Kim, D.-H., Choi, J.-M., Kang, M.-J., Oh, Y.-M., Park, Y.-J., Shin, Y., & Lee, S. W.
Affiliations
  • Asan Medical Center (KR)
  • University of Ulsan (KR)
  • Hanyang University (KR)
  • Yale University (US)
  • Korea Research Institute of Bioscience and Biotechnology (KR)
Corresponding author
  • Shin, Yong
  • Lee, Sei Won
Venue
Experimental & Molecular Medicine
Published
2020-07
Volume
52
Issue
7
Pages
1128-1139
ISSN
  • 1226-3613 (ISSN-L)
  • 2092-6413
OpenAlex
W3042783890
Cited by
121
References
63
Citations by year
2026: 14 · 2025: 26 · 2024: 37 · 2023: 19 · 2022: 14 · 2021: 10 · 2020: 1
FWCI
6.19
Type
journal article
Language
en
Open access
Locations
  • Experimental & Molecular Medicine (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
National Research Foundation of Korea (2019R1F1A1057875, 2016R1A6A3A11932575)
Topics
  • Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Chronic Obstructive Pulmonary Disease (COPD) Research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Gut microbiota and health
  • Health Sciences › Medicine › Physiology › Asthma and respiratory diseases
Keywords
fecal microbiota transplantation, high-fiber diet, emphysema, gut-lung axis, gut microbiota, smoking, poly(I:C), chronic obstructive pulmonary disease, inflammation, apoptosis, short-chain fatty acids, Bacteroidaceae, Lachnospiraceae, extracellular vesicles, interleukin-6, interferon-gamma, bronchoalveolar lavage
MeSH terms
Fecal Microbiota Transplantation, Administration, Oral, Animals, Emphysema, Fatty Acids, Feces, Female, Inflammation, Mice, Inbred C57BL, Pulmonary Alveoli, Weight Loss, Apoptosis, Diet, High-Fat

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