Neutrophil Granules Mnemonic for USMLE

The granules of neutrophils contain many compounds essential for proper neutrophil function. These molecules include myeloperoxidase or MPO, elastase, lysozyme, NADPH oxidase and lactoferrin.

NADPH Oxidase and Myeloperoxidase both play important roles in the oxidative burst  of neutrophils, catalyzing the production of reactive oxygen species that are toxic to pathogens.

Lysozyme breaks down the walls of bacteria, inducing cell death, while lactoferrin sequesters free iron to slow down bacterial growth.

Lastly, elastase works to aid wound healing and tissue remodeling.
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