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Biliopancreatic cancer is one of the most aggressive solid neoplasms, and incidence is rising worldwide. It is known that ATF6¿ is one of the transmembrane proteins that acts crucially in endoplasmic reticulum stress response, and knockdown induces apoptosis of pancreatic cells. Apart from this, p-p38 has been previously correlated with better outcome in pancreatic cancer. Interestingly, ATF6¿ knockdown pancreatic cells showed increased p-p38. The aim of this study was to evaluate the expression of these 2 proteins, p-p38 and ATF6¿, and their correlation with the outcome of biliopancreatic adenocarcinoma patients. Samples from patients with biliopancreatic adenocarcinoma that underwent pancreaticoduodenectomy from 2007 to 2013 were used to construct a tissue microarray to evaluate p-p38 and ATF6¿ proteins by immunohistochemistry. We observed that both markers showed a tendency to impact in the time to recurrence; then a combination of these 2 proteins was analyzed. Combination of ATF6¿(high) and p-p38(low) was strongly associated with a higher risk of recurrence (hazard ratio 2.918, P = 0.013). This 2-protein model remained significant after multivariate adjustment.We proposed a 2-protein signature based on ATF6¿(high) and p-p38(low) as a potential biomarker of risk of recurrence in resected biliopancreatic adenocarcinoma patients. Javier Martinez-Useros1*, Tihomir Georgiev-Hristov2, MarõÂa JesuÂs FernaÂndez-Aceñero3, Aurea Borrero-Palacios1, Alberto Indacochea4,5, Santiago Guerrero4,6, Weiyao Li1, Arancha CebriaÂn1, Teresa GoÂmez del Pulgar1, Alberto Puime-Otin7, Laura del Puerto- Nevado1, MarõÂa RodrõÂguez-RemõÂrez1, Nuria PeÂrez7, Angel CeldraÂn8, FaÂtima Gebauer4,6, Jesus Garcia-Foncillas1*; Martinez-Useros, Javier; Georgiev-Hristov, Tihomir; Fernandez-Aceñero, Maria J.; Borrero-Palacios, Aurea; Indacocheas, Ignacio; Et al. Fecha: 2017

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Listar por autor "Et al."

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