The intestinal commensal fungus Wallemia mellicola enhances asthma in mice through Dectin-2.

IF 2.7 3区 医学 Q3 INFECTIOUS DISEASES Medical mycology Pub Date : 2024-01-27 DOI:10.1093/mmy/myae004
Amjad N Kanj, Irene Riestra Guiance, Theodore J Kottom, Kyle J Schaefbauer, Malay Choudhury, Andrew H Limper, Joseph H Skalski
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Abstract

Overgrowth of the fungus Wallemia mellicola in the intestines of mice enhances the severity of asthma. Wallemia mellicola interacts with the immune system through Dectin-2 expressed on the surface of myeloid and intestinal epithelial cells. Using Dectin-2-deficient mice, we show that the interaction of W. mellicola with Dectin-2 is essential for the gut-lung pathways, enhancing the severity of asthma in mice with W. mellicola intestinal dysbiosis. These findings offer better insight into dysbiosis-associated inflammation and highlight the role pattern recognition receptors have in immune recognition of commensal fungi in the gut, leading to alterations in immune function in the lungs.

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共生真菌 Wallemia mellicola 通过 Dectin-2 增强小鼠的哮喘能力。
真菌 Wallemia mellicola 在小鼠肠道中的过度生长会加剧哮喘的严重程度。W. mellicola 通过表达在髓细胞和肠上皮细胞表面的 Dectin-2 与免疫系统相互作用。我们利用 Dectin-2 缺陷小鼠表明,麦地那龙线虫与 Dectin-2 的相互作用对肠道-肺部通路至关重要,从而加剧了麦地那龙线虫肠道菌群失调小鼠哮喘的严重程度。这些发现使我们对与菌群失调相关的炎症有了更深入的了解,并突出了模式识别受体在肠道共生真菌的免疫识别中的作用,从而导致肺部免疫功能的改变。
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来源期刊
Medical mycology
Medical mycology 医学-兽医学
CiteScore
5.70
自引率
3.40%
发文量
632
审稿时长
12 months
期刊介绍: Medical Mycology is a peer-reviewed international journal that focuses on original and innovative basic and applied studies, as well as learned reviews on all aspects of medical, veterinary and environmental mycology as related to disease. The objective is to present the highest quality scientific reports from throughout the world on divergent topics. These topics include the phylogeny of fungal pathogens, epidemiology and public health mycology themes, new approaches in the diagnosis and treatment of mycoses including clinical trials and guidelines, pharmacology and antifungal susceptibilities, changes in taxonomy, description of new or unusual fungi associated with human or animal disease, immunology of fungal infections, vaccinology for prevention of fungal infections, pathogenesis and virulence, and the molecular biology of pathogenic fungi in vitro and in vivo, including genomics, transcriptomics, metabolomics, and proteomics. Case reports are no longer accepted. In addition, studies of natural products showing inhibitory activity against pathogenic fungi are not accepted without chemical characterization and identification of the compounds responsible for the inhibitory activity.
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