Intrinsic chemoresistance is the main reason for the failure of human pancreatic ductal adenocarcinoma (PDAC) therapy. To identify the candidate protein, we compared the protein expression profiling of PDAC cells and its distinct surviving cells following primary treatment with gemcitabine (GEM) and 5-fluorouracil (5-FU) by two-dimensional electrophoresis combined with liquid chromatography-mass spectrometry or mass spectrometry. A total of 20 differentially expressed proteins were identified, and annexin A1 (ANXA1) was analyzed for further validation. The functional validation showed that the downregulation of ANXA1 contributes to GEM and 5-FU resistance in PDAC cells through protein kinase C/c-Jun N-terminal kinase/P-glycoprotein signaling pathway. Our findings provide a platform for the further elucidation of the underlying mechanisms of PDAC intrinsic chemoresistance and demonstrated that ANXA1 may be a valid marker for anticancer drug development.
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http://dx.doi.org/10.1007/s10637-019-00785-5 | DOI Listing |
Langenbecks Arch Surg
December 2024
Department of Surgery, TUM Universitätsklinikum Klinikum Rechts der Isar Technische Universität München, Ismaninger Str. 22, 81675, Munich, Germany.
Objective: Splenectomy is regularly performed in total and distal pancreatectomy due to technical reasons, lymph node dissection and radicality of the operation. However, the spleen serves as an important organ for competent immune function, and its removal is associated with an increased incidence of cancer and a worse outcome in some cancer entities (Haematologica 99:392-398, 2014; Dis Colon Rectum 51:213-217, 2008; Dis Esophagus 21:334-339, 2008). The impact of splenectomy in pancreatic cancer is not fully resolved (J Am Coll Surg 188:516-521, 1999; J Surg Oncol 119:784-793, 2019).
View Article and Find Full Text PDFBMC Surg
December 2024
Department of Surgery, Transplantation and Gastroenterology, Semmelweis University, Budapest, Hungary.
Background: Biliary leakage is a serious complication of hepato-pancreato-biliary operations, increasing morbidity and mortality, and challenging clinicians.
Objective: This study aims to evaluate the incidence of bilioenteric anastomotic leakage, treatment options, and their outcomes at a high-volume tertiary referral center.
Methods: A retrospective cohort study was conducted to analyze the outcomes of patients who underwent biliary anastomosis formation between 2016 and 2021.
Clin Epigenetics
December 2024
Zhejiang Cancer Hospital, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou, 310022, Zhejiang, China.
Background: Pancreatic adenocarcinoma (PDAC) exhibits a complex microenvironment with diverse cell populations influencing patient prognosis. Single-cell RNA sequencing (scRNA-seq) was used to identify prognosis-related cell types, and DNA methylation (DNAm)-based models were developed to predict outcomes based on their cellular characteristics.
Methods: We integrated scRNA-seq, bulk data, and clinical information to identify key cell populations associated with prognosis.
BMC Surg
December 2024
Department of Pancreatic Surgery, Fudan University Shanghai Cancer Center, Shanghai, 200032, China.
Background: Abdominal fluid collection (AFC) is one of the most common complications after pancreatic surgery, yet there are few recommendations on how to manage it. Most cases of AFC only require observation, while others may require more invasive techniques. Unfortunately, there are no drugs that effectively promote the absorption of AFCs.
View Article and Find Full Text PDFBMC Surg
December 2024
Department of Surgery, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.
Background: The introduction of enhanced recovery programmes (ERP) in pancreatic surgery has significantly improved clinical outcomes by decreasing the length of hospital stay, cost and complications without increasing readmissions and reoperations. To complement evidence on these outcomes, there is a need to explore patients' perspectives of a structured ERP. Therefore, this study aimed to explore the health-related quality of life (HRQoL) of patients before and after implementing ERP in pancreaticoduodenectomy ad modum Whipple (PD) at a regional surgical centre.
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