Soluble AXL is a novel blood marker for early detection of pancreatic ductal adenocarcinoma and differential diagnosis from chronic pancreatitis
Early diagnosis is crucial for patients with pancreatic ductal adenocarcinoma (PDAC). The AXL receptor tyrosine kinase is proteolytically processed releasing a soluble form (sAXL) into the blood stream. Here we explore the use of sAXL as a biomarker for PDAC. AXL was analysed by immunohistochemistry...
| Autores: | , , , , , , , , , , , , , , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2021 |
| País: | España |
| Institución: | Universitat Autònoma de Barcelona |
| Repositorio: | Dipòsit Digital de Documents de la UAB |
| Idioma: | inglés |
| OAI Identifier: | oai:ddd.uab.cat:250893 |
| Acceso en línea: | https://ddd.uab.cat/record/250893 https://dx.doi.org/urn:doi:10.1016/j.ebiom.2021.103797 |
| Access Level: | acceso abierto |
| Palabra clave: | PDAC, Pancreatic ductal adenocarcinoma Saxl, Soluble AXL CP, Chronic pancreatitis CA19-9, Carbohydrate antigen 19-9 RTKs, Receptor tyrosine kinases PanINs, Pancreatic intraepithelial neoplasias IPMNs, Intraductal papillary mucinous neoplasms ROC, Receiver operating curve AUC, Area under the curve IQR, Interquartile range IHC, Immunohistochemistry FDA, Food and drug administration GAS6, Growth arrest-specific factor 6 TCGA, The Cancer Genome Atlas GTEx, Genotype-tissue expression HCC, Hepatocellular carcinoma PDAC AXL Pancreas Biomarker Differential diagnosis |
| Sumario: | Early diagnosis is crucial for patients with pancreatic ductal adenocarcinoma (PDAC). The AXL receptor tyrosine kinase is proteolytically processed releasing a soluble form (sAXL) into the blood stream. Here we explore the use of sAXL as a biomarker for PDAC. AXL was analysed by immunohistochemistry in human pancreatic tissue samples. RNA expression analysis was performed using TCGA/GTEx databases. The plasma concentrations of sAXL, its ligand GAS6, and CA19-9 were studied in two independent cohorts, the HMar cohort (n = 59) and the HClinic cohort (n = 142), including healthy controls, chronic pancreatitis (CP) or PDAC patients, and in a familial PDAC cohort (n = 68). AXL expression and sAXL release were studied in PDAC cell lines and murine models. AXL is increased in PDAC and precursor lesions as compared to CP or controls. sAXL determined in plasma from two independent cohorts was significantly increased in the PDAC group as compared to healthy controls or CP patients. Patients with high levels of AXL have a lower overall survival. ROC analysis of the plasma levels of sAXL, GAS6, or CA19-9 in our cohorts revealed that sAXL outperformed CA19-9 for discriminating between CP and PDAC. Using both sAXL and CA19-9 increased the diagnostic value. These results were validated in murine models, showing increased sAXL specifically in animals developing PDAC but not those with precursor lesions or acinar tumours. sAXL appears as a biomarker for early detection of PDAC and PDAC-CP discrimination that could accelerate treatment and improve its dismal prognosis. |
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