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Updated: Apr 27, 2026

Monitoring Neutrophil Elastase and Cathepsin G Activity in Human Sputum Samples
Published on: May 21, 2021
Antimicrobial activity of human eosinophil granule proteins
1Immunochemistry Laboratory, National Institute of Immunology, New Delhi, India.
Abstract:
Eosinophils secrete a number of proinflammatory mediators, like cytokines, chemokines, and granule proteins which are responsible for the initiation and sustenance of inflammatory response caused by them. The eosinophil granule proteins, ECP, EDN, MBP, and EPO possess antimicrobial activity against bacteria, helminths, protozoa, and viruses. In this chapter, we describe various assays used to detect and quantitate the antimicrobial activities of eosinophil granule proteins, particularly ECP and EDN. We have taken a model organism for each assay and described the method for antiviral, antihelminthic, antiprotozoan, and antibacterial activity of purified eosinophil granule proteins.
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