Temporally resolved proteomics identifies nidogen-2 as a cotarget in pancreatic cancer that modulates fibrosis and therapy response
Details
Publication Year 2024-07-05,Volume 10,Issue #27,Page eadl1197
Journal Title
Science Advances
Publication Type
Research article
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is characterized by increasing fibrosis, which can enhance tumor progression and spread. Here, we undertook an unbiased temporal assessment of the matrisome of the highly metastatic KPC (Pdx1-Cre, LSL-Kras(G12D/+), LSL-Trp53(R172H/+)) and poorly metastatic KP(fl)C (Pdx1-Cre, LSL-Kras(G12D/+), Trp53(fl/+)) genetically engineered mouse models of pancreatic cancer using mass spectrometry proteomics. Our assessment at early-, mid-, and late-stage disease reveals an increased abundance of nidogen-2 (NID2) in the KPC model compared to KP(fl)C, with further validation showing that NID2 is primarily expressed by cancer-associated fibroblasts (CAFs). Using biomechanical assessments, second harmonic generation imaging, and birefringence analysis, we show that NID2 reduction by CRISPR interference (CRISPRi) in CAFs reduces stiffness and matrix remodeling in three-dimensional models, leading to impaired cancer cell invasion. Intravital imaging revealed improved vascular patency in live NID2-depleted tumors, with enhanced response to gemcitabine/Abraxane. In orthotopic models, NID2 CRISPRi tumors had less liver metastasis and increased survival, highlighting NID2 as a potential PDAC cotarget.
Publisher
American Association for the Advancement of Science
Keywords
Animals; *Pancreatic Neoplasms/metabolism/pathology/genetics; *Proteomics/methods; Mice; *Fibrosis; Humans; *Carcinoma, Pancreatic Ductal/metabolism/pathology/genetics; Cancer-Associated Fibroblasts/metabolism/pathology; Disease Models, Animal; Cell Line, Tumor; Calcium-Binding Proteins/metabolism/genetics; Gemcitabine; Deoxycytidine/analogs & derivatives/pharmacology; Cell Adhesion Molecules
Department(s)
Laboratory Research
Open Access at Publisher's Site
https://doi.org/10.1126/sciadv.adl1197
Terms of Use/Rights Notice
Refer to copyright notice on published article.


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