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Reviews
- Microbiome-Mucosal Immunity Nexus: Driving Forces in Respiratory Disease Progression.
- Young Chae Park, Soo Yeon Choi, Yunah Cha, Hyeong Won Yoon, Young Min Son
- J. Microbiol. 2024;62(9):709-725. Published online September 6, 2024
- DOI: https://doi.org/10.1007/s12275-024-00167-4
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Abstract
- The importance of the complex interplay between the microbiome and mucosal immunity, particularly within the respiratory tract, has gained significant attention due to its potential implications for the severity and progression of lung diseases. Therefore, this review summarizes the specific interactions through which the respiratory tract-specific microbiome influences mucosal immunity and ultimately impacts respiratory health. Furthermore, we discuss how the microbiome affects mucosal immunity, considering tissue-specific variations, and its capacity in respiratory diseases containing asthma, chronic obstructive pulmonary disease, and lung cancer. Additionally, we investigate the external factors which affect the relationship between respiratory microbiome and mucosal immune responses. By exploring these intricate interactions, this review provides valuable insights into the potential for microbiome-based interventions to modulate mucosal immunity and alleviate the severity of respiratory diseases.
- Application of Microbiome‑Based Therapies in Chronic Respiratory Diseases
- Se Hee Lee, Jang Ho Lee, Sei Won Lee
- J. Microbiol. 2024;62(3):201-216. Published online April 18, 2024
- DOI: https://doi.org/10.1007/s12275-024-00124-1
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- 3 Citations
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Abstract
- The application of microbiome-based therapies in various areas of human disease has recently increased. In chronic respiratory disease, microbiome-based clinical applications are considered compelling options due to the limitations of current treatments. The lung microbiome is ecologically dynamic and afected by various conditions, and dysbiosis is associated with disease severity, exacerbation, and phenotype as well as with chronic respiratory disease endotype. However, it is not easy to directly modulate the lung microbiome. Additionally, studies have shown that chronic respiratory diseases can be improved by modulating gut microbiome and administrating metabolites. Although the composition, diversity, and abundance of the microbiome between the gut and lung are considerably diferent, modulation of the gut microbiome could improve lung dysbiosis. The gut microbiome infuences that of the lung via bacterial-derived components and metabolic degradation products, including short-chain fatty acids. This phenomenon might be associated with the cross-talk between the gut microbiome and lung, called gut-lung axis. There are multiple alternatives to modulate the gut microbiome, such as prebiotics, probiotics, and postbiotics ingestion and fecal material transplantation. Several studies have shown that high-fber diets, for example, present benefcial efects through the production of short-chain fatty acids. Additionally, genetically modifed probiotics to secrete some benefcial molecules might also be utilized to treat chronic respiratory diseases. Further studies on microbial modulation to regulate immunity and potentiate conventional pharmacotherapy will improve microbiome modulation techniques, which will develop as a new therapeutic area in chronic respiratory diseases.
Journal Article
- Complete gammaproteobacterial endosymbiont genome assembly from a seep tubeworm Lamellibrachia satsuma
- Ajit Kumar Patra , Yong min Kwon , Youngik Yang
- J. Microbiol. 2022;60(9):916-927. Published online August 1, 2022
- DOI: https://doi.org/10.1007/s12275-022-2057-4
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- 1 Citations
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Abstract
- Siboglinid tubeworms thrive in hydrothermal vent and seep habitats via a symbiotic relationship with chemosynthetic bacteria. Difficulties in culturing tubeworms and their symbionts in a laboratory setting have hindered the study of host-microbe interactions. Therefore, released symbiont genomes are fragmented, thereby limiting the data available on the genome that affect subsequent analyses. Here, we present a complete genome of gammaproteobacterial endosymbiont from the tubeworm Lamellibrachia satsuma collected from a seep in Kagoshima Bay, assembled using a hybrid approach that combines sequences generated from the Illumina and Oxford Nanopore platforms. The genome consists of a single circular chromosome with an assembly size of 4,323,754 bp and a GC content of 53.9% with 3,624 protein-coding genes. The genome is of high quality and contains no assembly gaps, while the completeness and contamination are 99.33% and 2.73%, respectively. Comparative genome analysis revealed a total of 1,724 gene clusters shared in the vent and seep tubeworm symbionts, while 294 genes were found exclusively in L. satsuma symbionts such as transposons, genes for defense mechanisms, and inorganic ion transportations. The addition of this complete endosymbiont genome assembly would be valuable for comparative studies particularly with tubeworm symbiont genomes as well as with other chemosynthetic microbial communities.
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