Merlin's disappearing act: NF2 loss conjures pancreatic cancer survival in the hostile tumor microenvironment.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 41480769.
- Also identified by DOI 10.1172/JCI200909 and PMC identifier 12721879.
- Licence recorded as CC BY.
- The licence permits redistribution, so the abstract is shown in full and the full text is available from the publisher.
Abstract
Pancreatic cancer cells "live on the edge," starved of nutrients, compressed by abundant stiff stroma, and deprived of oxygen. In this issue, Xu et al. leveraged human pancreas organoid-based CRISPR screens to identify new driver genes in pancreatic ductal adenocarcinoma (PDAC) development. Neurofibromatosis type 2 (NF2) emerged as the top tumor suppressor, whose loss enhances PDAC malignancy. Inactivation of NF2, which encodes the protein Merlin, promoted growth factor independence and enhanced macropinocytosis upon nutrient deprivation. Thus, NF2 status dictates the adaptability of pancreatic tumors under nutrient limitation, with NF2 inactivation endowing PDACs with the ability to survive the constraints of the harsh tumor microenvironment.
Medical subject headings
- Tumor Microenvironment
- Pancreatic Neoplasms
- Neurofibromin 2
- Carcinoma, Pancreatic Ductal
- Neoplasm Proteins