Reprogramming tumor microenvironment could improve prospects for treatment of pancreatic cancer

Researchers at the Karlsruhe Institute of Technology have identified the CD44 molecule as a key regulator of the tumor microenvironment in pancreatic cancer. Inactivating this molecule could potentially weaken the protective barrier around tumors and improve the efficacy of immunotherapies.
Why it matters
This discovery offers a promising new target for treating one of the most aggressive and therapy-resistant forms of cancer.
by Leonie Kroll, Karlsruhe Institute of Technology
edited by Lisa Lock , reviewed by Robert Egan
This article has been reviewed according to Science X's editorial process and policies . Editors have highlighted the following attributes while ensuring the content's credibility:
Add to Preferred Sources CD44 (green) activates cancer-associated fibroblasts. When the molecule is inactivated (right), the cells change their shape and lose their activation state. Credit: Treffert et al./KIT Pancreatic cancer is one of the most aggressive and difficult-to-treat cancers. One reason for its resistance to therapy is the dense tissue surrounding the tumor that acts as a protective barrier and suppresses the immune response. It is a complex tissue made of supporting cells, blood vessels and immune cells—the tumor microenvironment. In pancreatic cancer, this surrounding tissue accounts for up to 90% of the tumor mass.
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