Multi-author review

Cellular and Molecular Life Sciences

, Volume 68, Issue 22, pp 3675-3685

The potter’s wheel: the host’s role in sculpting its microbiota

  • Charles L. BevinsAffiliated withDepartment of Microbiology and Immunology, University of California Davis School of Medicine
  • , Nita H. SalzmanAffiliated withDivision of Gastroenterology, Department of Pediatrics, Children’s Research Institute, Medical College of Wisconsin Email author 

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Animals, ranging from basal metazoans to primates, are host to complex microbial ecosystems; engaged in a symbiotic relationship that is essential for host physiology and homeostasis. Epithelial surfaces vary in the composition of colonizing microbiota as one compares anatomic sites, developmental stages and species origin. Alterations of microbial composition likely contribute to susceptibility to several distinct diseases. The forces that shape the colonizing microbial composition are the focus of much current investigation, and it is evident that there are pressures exerted both by the host and the external environment to mold these ecosystems. The focus of this review is to discuss recent studies that demonstrate the critical importance of host factors in selecting for its microbiome. Greater insight into host–microbiome interactions will be essential for understanding homeostasis at mucosal surfaces, and developing useful interventions when homeostasis is disrupted.


Microbial colonization Bacteria Microflora Intestine Mucosa Immunoglobulin A Antimicrobial peptide Defensin Mucus Dysbiosis Homeostasis