American Association for Cancer Research
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Supplemental Methods, Table 1 from CD44 Regulates Pancreatic Cancer Invasion through MT1-MMP

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journal contribution
posted on 2023-04-03, 16:29 authored by Wei Jiang, Yaqing Zhang, Kevin T. Kane, Meredith A. Collins, Diane M. Simeone, Marina Pasca di Magliano, Kevin Tri Nguyen

Detailed methods, list of primers and antibodies.



Pancreatic cancer is one of the deadliest human malignancies due to its early metastatic spread and resistance to therapy. The mechanisms regulating pancreatic cancer metastasis are so far poorly understood. Here, using both in vitro and in vivo approaches, it is demonstrated that CD44, a transmembrane glycoprotein expressed on a subset of pancreatic cancer cells, is required for the induction of epithelial–mesenchymal transition (EMT) and the activation of an invasive program in pancreatic cancer. Mechanistically, the transcription factor Snail1 (SNAI1), a regulator of the EMT program, is a downstream target of CD44 in primary pancreatic cancer cells and regulates membrane bound metalloproteinase (MMP14/MT1-MMP) expression. In turn, MT1-MMP expression is required for pancreatic cancer invasion. Thus, these data establish the CD44–Snail–MMP axis as a key regulator of the EMT program and of invasion in pancreatic cancer.Implications: This study sets the stage for CD44 and MT1-MMP as therapeutic targets in pancreatic cancer, for which small molecule or biologic inhibitors are available.Visual Overview: Cancer Res; 13(1); 9–15. ©2014 AACR.