Mastcell (IMAGE) La Jolla Institute for Immunology Caption Histamine-releasing factor amplifies food allergies by working in concert with IgE to stimulate the release of histamine from mast cells. Credit Sciencephoto Library Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.