UNIT 7.26 Measuring Degranulation of Mast Cells
Published Online: 1 MAY 2001
Copyright © 2003 by John Wiley and Sons, Inc.
Lab Protocol Title
Current Protocols in Immunology
How to Cite
Hohman, R. J. and Dreskin, S. C. 2001. Measuring Degranulation of Mast Cells. Current Protocols in Immunology. 8:IV:7.26:7.26.1–7.26.7.
- Published Online: 1 MAY 2001
- Published Print: DEC 1993
This unit describes methods for measuring exocytosis of preformed mediators from secretory granules as an indication of IgE receptor-mediated activation of mast cells. The first describes the measurement of biogenic amines (serotonin and histamine) secreted by activated rodent mast cells (for serotonin) or rodent and human mast cells (for histamine). The second and protocols detail techniques for measuring the release of β-glucuronidase, an enzyme that is synthesized by human and rodent mast cells, stored in secretory granules, and released during degranulation. Methods for assaying other enzymes released during degranulation, such as β-hexosaminidase and tryptase, are discussed in the Commentary. These protocols can also be applied to basophils where appropriate.