Mast cells infiltrate the esophageal smooth muscle in patients with eosinophilic esophagitis, express TGF- beta 1, and increase esophageal smooth muscle contraction - Aceves, Seema S; Chen, Diana; Newbury, Robert O; Dohil, Ranjan; Bastian, John F; Broide, David H (Journal of allergy and clinical immunology, 2010)