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YAP promotes fibrosis by regulating macrophage to myofibroblast transdifferentiation and M2 polarization in chronic pancreatitis.
Int Immunopharmacol
January 2025
Division of Pancreatic Surgery, Department of General Surgery, West China Hospital, Sichuan University, Chengdu, Sichuan CN 610041, China. Electronic address:
Chronic pancreatitis (CP) is a clinical entity characterized by progressive inflammation and irreversible fibrosis of the pancreas, which ultimately leads to exocrine and/or endocrine insufficiency as well as an increased risk of pancreatic cancer. Currently, there are no specific or effective approved therapies for CP. Herein, we show that macrophage to myofibroblast transdifferentiation (MMT) and M2 macrophage polarization are associated with both human CP and CP experimental mouse models.
View Article and Find Full Text PDFUnraveling the landscape of pediatric pancreatic tumors: Insights from Japan.
World J Gastrointest Oncol
January 2025
Faculty of Medicine, Imperial College London, London SW7 2AZ, United Kingdom.
Pediatric pancreatic tumors, though rare, pose significant diagnostic and management challenges. The recent, 22-year nationwide survey on pediatric pancreatic tumors in Japan by Makita offers valuable insights into this uncommon entity, revealing striking geographical variations and questioning current treatment paradigms. This editorial commentary analyzes the study's key findings, including the predominance of solid pseudopapillary neoplasms and their younger age of onset, which contrast sharply with Western data.
View Article and Find Full Text PDFSystematic review and meta-analysis of the prognostic role of fibroblast-activation protein in gastrointestinal cancers.
J Gastrointest Oncol
December 2024
Department of Visceral, Vascular and Endocrine Surgery, University Hospital Halle (Saale), Martin-Luther-University Halle-Wittenberg, Halle, Germany.
Background: Gastrointestinal (GI) cancers, particularly pancreatic cancer, are characterized by a dense stromal tumor microenvironment where cancer-associated fibroblasts (CAFs) predominate. CAFs comprise highly heterogeneous subpopulations with different functions, which can be both tumor-promoting and tumor-restraining. This systematic review and meta-analysis aims to comprehensively assess the impact of the CAF marker fibroblast-activation protein (FAP) expression on clinical outcomes in GI cancers.
View Article and Find Full Text PDFThe impact of neoadjuvant therapy in patients with left-sided resectable pancreatic cancer: an international multicenter study.
Ann Oncol
January 2025
Division of Surgical Oncology, Department of Surgery, University of Colorado School of Medicine, Anschutz Medical Campus, Aurora, CO, USA.
Purpose: To assess the association between neoadjuvant therapy and overall survival (OS) in patients with left-sided resectable pancreatic cancer (RPC) compared to upfront surgery.
Background: Left-sided pancreatic cancer is associated with worse OS compared to right-sided pancreatic cancer. Although neoadjuvant therapy is currently seen as not effective in patients with RPC, current randomized trials included mostly patients with right-sided RPC.
Gene expression dynamics in fibroblasts during early-stage murine pancreatic carcinogenesis.
iScience
January 2025
Department of Visceral, Vascular and Endocrine Surgery, Martin-Luther-University Halle-Wittenberg, University Medical Center Halle, 06120 Halle (Saale), Germany.
Pancreatic ductal adenocarcinoma (PDAC) is characterized by aggressive growth and metastasis, partly driven by fibroblast-mediated stromal interactions. Using RNA sequencing of fibroblasts from early-stage KPC mouse models, we identified significant upregulation of genes involved in adipogenesis, fatty acid metabolism, and the ROS pathway. ANGPTL4, a key adipogenesis regulator, was highly expressed in fibroblasts and promoted pancreatic cancer cell proliferation and migration through paracrine signaling.
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