The Immune-Microbiota Axis
Keywords:
Immunity, innate immunity, acquired immunity, vaccination, microbiota, immune microbiome cross talkAbstract
This document explores the "Immune-Microbiota Axis," highlighting how trillions of microbes act as essential trainers for our immune system. It examines how modern, hyper-sanitized lifestyles and antibiotic overuse deplete microbial diversity, leading to autoimmune disorders and allergies. By understanding this synergy, medical science is moving toward personalized treatments that utilize our "second genome" to optimize health. Modern medicine now recognizes that a patient’s microbial diversity—not just a balance of "good vs. bad" bacteria—determines the success of treatments like vaccines. Overusing antibiotics is like a "scorched-earth" policy; it wipes out the diverse microbial communities that are foundational to our survival and long-term health.
References
[1] M. C. Arrieta, L. T. Stiemsma, N. Amenyogbe, E. M. Brown, and B. Finlay, “The intestinal microbiome and health,” Journal of Clinical Gastroenterology, vol. 48, pp. S8–S12, 2014.
[2] Y. Belkaid and T. W. Hand, “Role of the microbiota in immunity and inflammation,” Nature, vol. 512, no. 7510, pp. 121–130, 2014.
[3] S. R. Bordenstein and K. R. Theis, “Host biology in light of the holobiont concept,” PLOS Biology, vol. 13, no. 8, p. e1002226, 2015.
[4] T. Gensollen, S. S. Iyer, D. L. Kasanecki, and R. S. Blumberg, “How colonization by microbiota in early life shapes the immune system,” Science, vol. 352, no. 6285, pp. 539–544, 2016.
[5] S. F. Gilbert, J. Sapp, and A. I. Tauber, “A symbiotic view of life: We have never been individuals,” The Quarterly Review of Biology, vol. 87, no. 4, pp. 325–341, 2012.
[6] L. V. Hooper, D. R. Littman, and A. J. Macpherson, “Interactions between the microbiota and the immune system,” Science, vol. 336, no. 6086, pp. 1268–1273, 2012.
[7] A. L. Kau, P. P. Ahern, N. W. Griffin, A. L. Goodman, and J. I. Gordon, “Human nutrition, the gut microbiome and the immune system,” Nature, vol. 474, no. 7351, pp. 327–336, 2011.
[8] A. Koh, F. De Vadder, P. Kovatcheva-Datchary, and F. Bäckhed, “From dietary fiber to host physiology: Short-chain fatty acids as key bacterial metabolites,” Cell, vol. 165, no. 6, pp. 1332–1345, 2016.
[9] S. V. Lynch and O. Pedersen, “The human intestinal microbiome in health and disease,” New England Journal of Medicine, vol. 375, no. 24, pp. 2369–2379, 2016.
[10] C. L. Maynard, C. O. Elson, R. D. Hatton, and C. T. Weaver, “Reciprocal interactions between the mucosal immune system and commensal bacteria,” Nature, vol. 489, no. 7415, pp. 231–241, 2012.
