The Yolk Sac Feeds Pancreatic Tumors

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Abstract

In this issue ofImmunity,Zhu et al. (2017)report that tumor-associated macrophages in a mouse model of pancreatic ductal adenocarcinoma (PDAC) originate from both the yolk sac (YS) and bone marrow. Differential ablation of these populations indicates that only the YS-derived macrophages promote PDAC progression and growth.

In this issue of Immunity, Zhu et al. (2017) report that tumor-associated macrophages in a mouse model of pancreatic ductal adenocarcinoma (PDAC) originate from both the yolk sac (YS) and bone marrow. Differential ablation of these populations indicates that only the YS-derived macrophages promote PDAC progression and growth.

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