Blocking nutrient scavenging weakens pancreatic tumor defenses

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Cancer cells and tumors do not exist in a vacuum. Far from the isolation and self-sufficiency of the fictional Wakanda, tumors develop in and alter the nearby milieu of immune cells, connective tissue, blood vessels and a sea of proteins and carbohydrates that provide structure and other supportive functions.

Cancer cells interact with this neighborhood – which scientists term the tumor microenvironment – in many ways, including obtaining extra resources needed to fuel their unchecked growth. Like a fishing trawler deploying its net, pancreatic ductal adenocarcinoma (PDAC) cells reform their cell surfaces to grab additional nutrients from the jelly-like substance between cells called the extracellular matrix.

This cellular…



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