The Microbiota Is Not an Organ: Introducing the Muco-Microbiotic Layer as a Novel Morphofunctional Structure
Abstract
:1. Brief Introduction to the History and Terminology Related to the Term “Microbiota” and about Its Definition in Scientific Literature
2. Microscopic Anatomy of Human Airways and Bowel: Similarities and Differences
3. The “Ghost” Layer
4. Extracellular Vesicles: Physiology and Pathophysiology
5. Airway Composition
6. Bowel Mucus Composition
7. Bowel Microbiota Composition
Anatomy | Density | Kingdoms | Phylum | Genus | (%) | References | |
---|---|---|---|---|---|---|---|
URT (upper respiratory tract) | Nasal cavity | 103 | Bacteria | Actinomycetota | Corynebacterium spp. | 20–25% | [16,73,74,76,77,78,107,132,133,134] |
Bacillota | Staphylococcus spp. | 7–12% | |||||
Streptococcus spp. | 8.5–13% | ||||||
Pseudomonadota | Haemophilus spp. | 2–7% | |||||
Moraxella spp. | 13–18% | ||||||
Nasopharynx | 103 | Actinomycetota | Corynebacterium spp. | 6–11% | |||
Bacillota | Staphylococcus spp. | 12–17% | |||||
Streptococcus spp. | 10.5–15% | ||||||
Pseudomonadota | Moraxella spp. | 14–19% | |||||
Oropharynx | 106 | Actinomycetota | Rothia spp. | 5.5–10% | |||
Bacteroidota | Prevotella spp. | 12–17% | |||||
Bacillota | Streptococcus spp. | 23–28,5% | |||||
Lactobacillus spp. | 1–5% | ||||||
Veillonella spp. | 4–9% | ||||||
Fusobacteriota | Leptotrichia spp. | 4–9% | |||||
LRT (lower respiratory tract | Lungs | 102 | Bacteria | Bacteroidota | Prevotella spp. | 75–80% | |
Bacillota | Lactobacillus spp. | 78–83% | |||||
Streptococcus spp. | |||||||
Veillonella spp. | |||||||
Pseudomonadota | Halomonas spp. | 41–46% |
Domain | Kingdoms | Phylum | Genus | (%) | References |
---|---|---|---|---|---|
Procaryota | Bacteria | Bacteroidota | Bacteroides | 73.13 ± 22.16% | [136,137,138,139] |
Prevotella | |||||
Bacillota | Clostridium | 22.2 ± 18.66% | |||
Lactobacillus | |||||
Actinomycetota | Bifidobacterium | 1.67 ± 2.94 | |||
Fusobacteriota | Fusobacterium | 19 ± 21.4% | |||
Pseudomonadota | Escherichia | 2.15 ± 10.39% | |||
Shigella | |||||
Verrucomicrobiota | Akkermansia | 1 ± 2% | |||
Spirochaetota | Brachyspira | 5 ± 7.8% | |||
Archea | Euryarchaeota | Halobacterium | 0.1 ± 21.3% | [140,141] | |
Domain | Kingdoms | Phylum | Family | (%) | References |
Eukaryota | Fungi | Ascomycota | Aspergillaceae | 47.8 ± 99.5% | |
Debaryomycetaceae | [142,143,144] | ||||
Dipodascaceae | |||||
Saccharomycetaceae | |||||
Basidiomycota | Tremellaceae | 47.8 ± 99.5% | |||
Malasseziaceae | |||||
Virii | Bacteriophage | Uroviricota | Demerecviridae | 80 ± 84% | [139,145,146,147] |
Ackermannviridae | |||||
Autographiviridae |
8. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Acknowledgments
Conflicts of Interest
References
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Fucarino, A.; Burgio, S.; Paladino, L.; Caruso Bavisotto, C.; Pitruzzella, A.; Bucchieri, F.; Cappello, F. The Microbiota Is Not an Organ: Introducing the Muco-Microbiotic Layer as a Novel Morphofunctional Structure. Anatomia 2022, 1, 186-203. https://doi.org/10.3390/anatomia1020019
Fucarino A, Burgio S, Paladino L, Caruso Bavisotto C, Pitruzzella A, Bucchieri F, Cappello F. The Microbiota Is Not an Organ: Introducing the Muco-Microbiotic Layer as a Novel Morphofunctional Structure. Anatomia. 2022; 1(2):186-203. https://doi.org/10.3390/anatomia1020019
Chicago/Turabian StyleFucarino, Alberto, Stefano Burgio, Letizia Paladino, Celeste Caruso Bavisotto, Alessandro Pitruzzella, Fabio Bucchieri, and Francesco Cappello. 2022. "The Microbiota Is Not an Organ: Introducing the Muco-Microbiotic Layer as a Novel Morphofunctional Structure" Anatomia 1, no. 2: 186-203. https://doi.org/10.3390/anatomia1020019
APA StyleFucarino, A., Burgio, S., Paladino, L., Caruso Bavisotto, C., Pitruzzella, A., Bucchieri, F., & Cappello, F. (2022). The Microbiota Is Not an Organ: Introducing the Muco-Microbiotic Layer as a Novel Morphofunctional Structure. Anatomia, 1(2), 186-203. https://doi.org/10.3390/anatomia1020019