Journal
AMERICAN JOURNAL OF PATHOLOGY
Volume 189, Issue 1, Pages 44-57Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.ajpath.2018.09.009
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Funding
- National Cancer Institute/NIH [NIH 5K12CA001727-20]
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Pancreatic ductal adenocarcinoma (PDAC) is increasing in incidence and is projected to become the second leading cause of cancer death in the United States. Despite significant advances in understanding the disease, there has been minimal increase in PDAC patient survival. PDAC tumors are unique in the fact that there is significant desmoplasia. This generates a large stromal compartment composed of immune cells, inflammatory cells, growth factors, extracellular matrix, and fibroblasts, comprising the tumor microenvironment (TME), which may represent anywhere from 15% to 85% of the tumor. It has become evident that the TME, including both the stroma and extracellular component, plays an important role in tumor progression and chemoresistance of PDAC. This review will discuss the multiple components of the TME, their specific impact on tumorigenesis, and the multiple therapeutic targets.
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