Comment on

• Nasal mast cells in perennial allergic rhinitics exhibit increased expression of the Fc epsilonRI, CD40L, IL-4, and IL-13, and can induce IgE synthesis in B cells.

  Pawankar R, Okuda M, Yssel H, Okumura K, Ra C. Pawankar R, et al. J Clin Invest. 1997 Apr 1;99(7):1492-9. doi: 10.1172/JCI119311. J Clin Invest. 1997. PMID: 9119992 Free PMC article.