Adventitial fibroblast–ILC2 niche restrains liver fibrosis

Altieri, Anthony; Buechler, Matthew B.

doi:10.1038/s41577-023-00909-2

Nat Rev Immunol

2023

DOI: 10.1038/s41577-023-00909-2

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Adventitial fibroblast–ILC2 niche restrains liver fibrosis

Anthony Altieri

Matthew B. Buechler

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2024

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Dietary human milk oligosaccharides reduce allergic airway inflammation by modulating SCFAs level and ILC2 activity

Han,

Wang,

Cao

et al. 2024

Immunology

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Group 2 innate lymphoid cells (ILC2s) play a crucial role in the progression of asthma, yet the regulatory mechanisms modulating ILC2 responses in asthma remain underexplored. Human milk oligosaccharides (HMOs), vital non‐nutritive components of breast milk, are known to significantly shape immune system development and influence the incidence of allergic diseases. However, their impact on ILC2‐driven asthma is not fully understood. Our research reveals that dietary HMOs act as potent inhibitors of ILC2 responses and allergic airway inflammation. Treatment with 2′‐fucosyllactose (2'‐FL) and 6′‐sialyllactose (6'‐SL) significantly reduced ILC2‐related airway inflammation induced by papain or Alternaria alternata in mice, evidenced by decreased eosinophil (EOS) infiltration and lower IL‐5 and IL‐13 levels in BALF. Notably, while ILC2 expresses HMO receptors, HMO did not act directly on ILC2 but potentially modulated their activity through alterations in gut microbiota derived SCFAs. HMO treatments alleviated airway inflammation in SCFA‐dependent manners, with SCFA depletion or receptor blocking reversing these beneficial effects. This study reveals the potential of dietary HMOs in managing asthma through modulation of ILC2 activity and the gut‐lung axis, proposing a new therapeutic avenue that utilises the immunomodulatory capacities of nutritional components to combat respiratory diseases.

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Dietary human milk oligosaccharides reduce allergic airway inflammation by modulating SCFAs level and ILC2 activity

Han,

Wang,

Cao

et al. 2024

Immunology

View full text Add to dashboard Cite

show abstract

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Adventitial fibroblast–ILC2 niche restrains liver fibrosis

Cited by 1 publication

References 1 publication

Dietary human milk oligosaccharides reduce allergic airway inflammation by modulating SCFAs level and ILC2 activity

Dietary human milk oligosaccharides reduce allergic airway inflammation by modulating SCFAs level and ILC2 activity

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