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Pancreatic Neoplasms: HELP
Articles by Philipp Eser
Based on 3 articles published since 2010
(Why 3 articles?)

Between 2010 and 2020, Philipp Eser wrote the following 3 articles about Pancreatic Neoplasms.
+ Citations + Abstracts
1 Article A next-generation dual-recombinase system for time- and host-specific targeting of pancreatic cancer. 2014

Schönhuber, Nina / Seidler, Barbara / Schuck, Kathleen / Veltkamp, Christian / Schachtler, Christina / Zukowska, Magdalena / Eser, Stefan / Feyerabend, Thorsten B / Paul, Mariel C / Eser, Philipp / Klein, Sabine / Lowy, Andrew M / Banerjee, Ruby / Yang, Fangtang / Lee, Chang-Lung / Moding, Everett J / Kirsch, David G / Scheideler, Angelika / Alessi, Dario R / Varela, Ignacio / Bradley, Allan / Kind, Alexander / Schnieke, Angelika E / Rodewald, Hans-Reimer / Rad, Roland / Schmid, Roland M / Schneider, Günter / Saur, Dieter. ·Department of Internal Medicine II, Klinikum rechts der Isar, Technische Universität München, München, Germany. · German Cancer Research Center (DKFZ), Division for Cellular Immunology, Heidelberg, Germany. · Gene Center and Department of Biochemistry, Center for Integrated Protein Science CIPSM, Ludwig-Maximilians-Universität München, München, Germany. · Moores Cancer Center, Division of Surgical Oncology, University of California San Diego, La Jolla, California, USA. · Wellcome Trust Sanger Institute, Genome Campus, Hinxton, Cambridge, UK. · Department of Radiation Oncology, Duke University Medical Center, Durham, North Carolina, USA. · Department of Pharmacology and Cancer Biology, Duke University Medical Center, Durham, North Carolina, USA. · Helmholtz Zentrum München, Research Unit Comparative Medicine, Neuherberg, Germany. · MRC Protein Phosphorylation Unit, University of Dundee, Dundee, UK. · Instituto de Biomedicina y Biotecnología de Cantabria (CSIC-UC-Sodercan), Departamento de Biología Molecular, Universidad de Cantabria, Santander, Spain. · Livestock Biotechnology, Technische Universität München, Freising, Germany. · German Cancer Research Center (DKFZ) and German Cancer Consortium (DKTK), Heidelberg, Germany. ·Nat Med · Pubmed #25326799.

ABSTRACT: Genetically engineered mouse models (GEMMs) have dramatically improved our understanding of tumor evolution and therapeutic resistance. However, sequential genetic manipulation of gene expression and targeting of the host is almost impossible using conventional Cre-loxP-based models. We have developed an inducible dual-recombinase system by combining flippase-FRT (Flp-FRT) and Cre-loxP recombination technologies to improve GEMMs of pancreatic cancer. This enables investigation of multistep carcinogenesis, genetic manipulation of tumor subpopulations (such as cancer stem cells), selective targeting of the tumor microenvironment and genetic validation of therapeutic targets in autochthonous tumors on a genome-wide scale. As a proof of concept, we performed tumor cell-autonomous and nonautonomous targeting, recapitulated hallmarks of human multistep carcinogenesis, validated genetic therapy by 3-phosphoinositide-dependent protein kinase inactivation as well as cancer cell depletion and show that mast cells in the tumor microenvironment, which had been thought to be key oncogenic players, are dispensable for tumor formation.

2 Article Efemp1 and p27(Kip1) modulate responsiveness of pancreatic cancer cells towards a dual PI3K/mTOR inhibitor in preclinical models. 2013

Diersch, Sandra / Wenzel, Patrick / Szameitat, Melanie / Eser, Philipp / Paul, Mariel C / Seidler, Barbara / Eser, Stefan / Messer, Marlena / Reichert, Maximilian / Pagel, Philipp / Esposito, Irene / Schmid, Roland M / Saur, Dieter / Schneider, Günter. ·II. Medizinische Klinik, Technische Universität München, München, Germany. ·Oncotarget · Pubmed #23470560.

ABSTRACT: Pancreatic ductal adenocarcinoma (PDAC) remains a dismal disease with a poor prognosis and targeted therapies have failed in the clinic so far. Several evidences point to the phosphatidylinositol 3-kinase (PI3K)-mTOR pathway as a promising signaling node for targeted therapeutic intervention. Markers, which predict responsiveness of PDAC cells towards PI3K inhibitors are unknown. However, such markers are needed and critical to better stratify patients in clinical trials. We used a large murine Kras(G12D)- and PI3K (p110α(H1047R))-driven PDAC cell line platform to unbiased define modulators of responsiveness towards the dual PI3K-mTOR inhibitor Bez235. In contrast to other tumor models, we show that Kras(G12D)- and PI3K (p110α(H1047R))-driven PDAC cell lines are equally sensitive towards Bez235. In an unbiased approach we found that the extracellular matrix protein Efemp1 controls sensitivity of murine PDAC cells towards Bez235. We show that Efemp1 expression is connected to the cyclin-dependent kinase inhibitor p27(Kip1). In a murine Kras(G12D)-driven PDAC model, p27(Kip1) haploinsufficiency accelerates cancer development in vivo. Furthermore, p27(Kip1) controls Bez235 sensitivity in a gene dose-dependent fashion in murine PDAC cells and lowering of p27(Kip1) decreases Bez235 responsiveness in murine PDAC models. Together, we define the Efemp1-p27(Kip1) axis as a potential marker module of PDAC cell sensitivity towards dual PI3K-mTOR inhibitors, which might help to better stratify patients in clinical trials.

3 Article In vivo diagnosis of murine pancreatic intraepithelial neoplasia and early-stage pancreatic cancer by molecular imaging. 2011

Eser, Stefan / Messer, Marlena / Eser, Philipp / von Werder, Alexander / Seidler, Barbara / Bajbouj, Monther / Vogelmann, Roger / Meining, Alexander / von Burstin, Johannes / Algül, Hana / Pagel, Philipp / Schnieke, Angelika E / Esposito, Irene / Schmid, Roland M / Schneider, Günter / Saur, Dieter. ·II Medizinische Klinik, Technische Universität München, 81675 Munich, Germany. ·Proc Natl Acad Sci U S A · Pubmed #21628592.

ABSTRACT: Pancreatic ductal adenocarcinoma (PDAC) is a fatal disease with poor patient outcome often resulting from late diagnosis in advanced stages. To date methods to diagnose early-stage PDAC are limited and in vivo detection of pancreatic intraepithelial neoplasia (PanIN), a preinvasive precursor of PDAC, is impossible. Using a cathepsin-activatable near-infrared probe in combination with flexible confocal fluorescence lasermicroscopy (CFL) in a genetically defined mouse model of PDAC we were able to detect and grade murine PanIN lesions in real time in vivo. Our diagnostic approach is highly sensitive and specific and proved superior to clinically established fluorescein-enhanced imaging. Translation of this endoscopic technique into the clinic should tremendously improve detection of pancreatic neoplasia, thus reforming management of patients at risk for PDAC.