Frank W. Bergmann

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Curative resection has been shown to be one of the key factors influencing survival of pancreatic ductal adenocarcinoma (PDAC) patients. Although general guidelines for the processing of pancreatic specimens have been established, there is currently no widely accepted standardized protocol for pathological examination, especially with respect to resection(More)
BACKGROUND Surgery is the only therapy with potentially curative intention in pancreatic cancer. This analysis aimed to determine prognostic parameters in a patient cohort with resected pancreatic adenocarcinoma with a special focus on the revised R1-definition. METHODS Between October 2001 and August 2009, data from 1071 consecutively resected patients(More)
Tenascin C (TNC) is a component of the provisional extracellular matrix (ECM) that characterizes solid tumours. Cell surface annexin II is a high-affinity receptor for large TNC splice variants. The aim of this study was to analyse whether TNC and annexin II play a role in the development of pancreatic ductal adenocarcinoma (PDAC). PDAC is characterized by(More)
OBJECTIVE The objective of this study was to clarify the clinical and pathophysiological characteristics of autoimmune pancreatitis (AIP) and its subtypes (lymphoplasmacytic sclerosing pancreatitis [LPSP] and idiopathic duct-centric pancreatitis [IDCP]) seen around the world. METHODS An international multicenter survey of AIP was conducted in 15(More)
BACKGROUND & AIMS Cancer cells often lose contact inhibition to undergo anchorage-independent proliferation and become resistant to apoptosis by inactivating the Hippo signaling pathway, resulting in activation of the transcriptional co-activator yes-associated protein (YAP). However, the oncogenic mechanisms of YAP activity are unclear. METHODS By using(More)
Cannabinoids exert antiproliferative properties in a variety of malignant tumors, including pancreatic ductal adenocarcinoma (PDAC). In our study, we quantitatively evaluated the immunoreactivity for cannabinoid-1 (CB1) and cannabinoid-2 (CB2) receptors as well as for the endocannabinoid metabolizing enzymes fatty acid amide hydrolase (FAAH) and monoacyl(More)
BACKGROUND ALCAM (activated leucocyte cell adhesion molecule, synonym CD166) is a cell adhesion molecule, which belongs to the Ig superfamily. Disruption of the ALCAM-mediated adhesiveness by proteolytic sheddases such as ADAM17 has been suggested to have a relevant impact on tumour invasion. Although the expression of ALCAM is a valuable prognostic and(More)
We investigated the expression pattern and clinical significance of the costimulatory ligands B7-1, B7-2, B7-H1, and B7-DC, and their counter-receptors CTLA-4 and PD-1 in pancreatic cancer. Gene expression of all examined costimulatory molecules was significantly upregulated in pancreatic cancer tissues. B7-1, B7-2, B7-H1, and B7-DC protein was detectable(More)
Pancreatic cancer patients have an abysmal prognosis because of late diagnosis and lack of therapeutic options. Pancreatic intraepithelial neoplasias (PanINs), the precursor lesions, are a potential target for chemoprevention. Targeting eicosanoid pathways is an obvious choice because 5-lipoxygenase (5-LOX) has been suggested as a tumor promoter in(More)
BACKGROUND Preoperative biopsy of pancreatic lesions suspected of malignancy is controversial. METHODS A systematic Medline literature search was carried out. Diagnostic studies reporting quantitative preoperative pancreatic biopsy data were evaluated. RESULTS The analysis included 53 studies, mostly of a retrospective nature. Despite acceptable rates(More)