Comment on

• Adaptation of innate lymphoid cells to a micronutrient deficiency promotes type 2 barrier immunity.

  Spencer SP, Wilhelm C, Yang Q, Hall JA, Bouladoux N, Boyd A, Nutman TB, Urban JF Jr, Wang J, Ramalingam TR, Bhandoola A, Wynn TA, Belkaid Y. Spencer SP, et al. Science. 2014 Jan 24;343(6169):432-7. doi: 10.1126/science.1247606. Science. 2014. PMID: 24458645 Free PMC article.
• Intestinal epithelial cells: regulators of barrier function and immune homeostasis.

  Peterson LW, Artis D. Peterson LW, et al. Nat Rev Immunol. 2014 Mar;14(3):141-53. doi: 10.1038/nri3608. Nat Rev Immunol. 2014. PMID: 24566914 Review.