Skip to main content

Aryl Hydrocarbon Receptor: An Environmental Sensor in Control of Allergy Outcomes

  • Chapter
  • First Online:
Allergy Prevention and Exacerbation

Abstract

The mechanisms how environmental compounds influence the human immune system are unknown. The environmentally sensitive transcription factor aryl hydrocarbon receptor (AhR) has immune-modulating functions and responds to a wide variety of small molecules. Since AhR is highly expressed in cells at body surfaces, such as skin, gut mucosa and particularly in mucosal-associated lymphocytes, this molecule is perfectly positioned to be a sensor of external environmental signals. The role of AhR in the balance of immunity and tolerance and in the control of local homeostasis has been clearly demonstrated in recent years [Kiss et al., Science (New York, NY) 334(6062):1561–1565, 2011; Li et al., Cell 147(3):629–640, 2011]. Deletion of AhR in mice resulted in altered composition of gut microbiota, impaired function and inflammatory immune activation of gut epithelium. In addition to xenobiotics, AhR ligands now include endogenous metabolites, dietary derivatives and bacterial metabolites (Denison and Nagy. Annu Rev Pharmacol Toxicol 43:309–334, 2003). Xenobiotics such as dietary components, products of microbiota, and ubiquitous environmental pollutants may have shaped the AhR system in intestinal epithelia or other body surfaces during millions of years of evolution. Thus, the crosstalk among the dietary components/xenobiotics, AhR and the gut microbiome appears to be an important factor in the maintenance of the mucosal immunity and immune homeostasis. These exciting discoveries provide a novel perspective for the biological role of AhR, which has been originally studied only as a sensor of toxicants, but which has been now implicated in a wide range of human conditions, including autoimmune and allergic disorders.

This is a preview of subscription content, log in via an institution to check access.

Access this chapter

Chapter
USD 29.95
Price excludes VAT (USA)
  • Available as PDF
  • Read on any device
  • Instant download
  • Own it forever
eBook
USD 129.00
Price excludes VAT (USA)
  • Available as EPUB and PDF
  • Read on any device
  • Instant download
  • Own it forever
Softcover Book
USD 169.99
Price excludes VAT (USA)
  • Compact, lightweight edition
  • Dispatched in 3 to 5 business days
  • Free shipping worldwide - see info
Hardcover Book
USD 169.99
Price excludes VAT (USA)
  • Durable hardcover edition
  • Dispatched in 3 to 5 business days
  • Free shipping worldwide - see info

Tax calculation will be finalised at checkout

Purchases are for personal use only

Institutional subscriptions

References

Download references

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Francesca Fallarino .

Editor information

Editors and Affiliations

Rights and permissions

Reprints and permissions

Copyright information

© 2017 Springer International Publishing AG

About this chapter

Check for updates. Verify currency and authenticity via CrossMark

Cite this chapter

Gargaro, M., Pirro, M., Manni, G., De Luca, A., Zelante, T., Fallarino, F. (2017). Aryl Hydrocarbon Receptor: An Environmental Sensor in Control of Allergy Outcomes. In: Schmidt-Weber, C. (eds) Allergy Prevention and Exacerbation. Birkhäuser Advances in Infectious Diseases. Springer, Cham. https://doi.org/10.1007/978-3-319-69968-4_9

Download citation

Publish with us

Policies and ethics