How macrophages use extracellular calreticulin to chase their prey.

Oncoimmunology

Centre de Recherche des Cordeliers, Université Paris Cité, Sorbonne Université, Inserm, Equipe labellisée par la Ligue contre le cancer, Institut Universitaire de France, Paris, France.

Published: December 2025


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Article Abstract

Recent findings reveal that macrophages actively control clearance by desialylating target cells via NEU1 and releasing cathepsin-cleaved calreticulin (CALR) to mark them for phagocytosis. This uncovers a dual role for CALR as immune activator or repressor, depending on its form and context, with distinct implications for cancer immunity.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC12258218PMC
http://dx.doi.org/10.1080/2162402X.2025.2533494DOI Listing

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