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Pancreatic Neoplasms: HELP
Articles by Astrid Magenau
Based on 6 articles published since 2010
(Why 6 articles?)
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Between 2010 and 2020, Astrid Magenau wrote the following 6 articles about Pancreatic Neoplasms.
 
+ Citations + Abstracts
1 Article ROBO2 is a stroma suppressor gene in the pancreas and acts via TGF-β signalling. 2018

Pinho, Andreia V / Van Bulck, Mathias / Chantrill, Lorraine / Arshi, Mehreen / Sklyarova, Tatyana / Herrmann, David / Vennin, Claire / Gallego-Ortega, David / Mawson, Amanda / Giry-Laterriere, Marc / Magenau, Astrid / Leuckx, Gunther / Baeyens, Luc / Gill, Anthony J / Phillips, Phoebe / Timpson, Paul / Biankin, Andrew V / Wu, Jianmin / Rooman, Ilse. ·Cancer Division, The Garvan Institute of Medical Research, Sydney, Darlinghurst 2010, NSW, Australia. andreia.pinho@mq.edu.au. · Faculty of Medicine and Health Sciences, Macquarie University, Sydney, Macquarie University 2109, NSW, Australia. andreia.pinho@mq.edu.au. · Australian Pancreatic Cancer Genome Initiative (APGI), Sydney, Darlinghurst 2010, NSW, Australia. andreia.pinho@mq.edu.au. · Oncology Research Centre, Vrije Universiteit Brussel, Brussels, 1090, Belgium. · Cancer Division, The Garvan Institute of Medical Research, Sydney, Darlinghurst 2010, NSW, Australia. · Australian Pancreatic Cancer Genome Initiative (APGI), Sydney, Darlinghurst 2010, NSW, Australia. · St. Vincent's Clinical School, UNSW, Sydney, Darlinghurst 2010, NSW, Australia. · Beta cell Neogenesis Lab, Vrije Universiteit Brussel, Brussels, 1090, Belgium. · Cancer Diagnosis and Pathology Group, Kolling Institute of Medical Research, Royal North Shore Hospital, University of Sydney, Sydney, St. Leonards 2065, NSW, Australia. · Lowy Cancer Research Centre, University of New South Wales, Sydney, Sydney 2052, NSW, Australia. · Wolfson Wohl Cancer Research Centre, Institute of Cancer Sciences, University of Glasgow, Glasgow, G61 1BD, Scotland, UK. · West of Scotland Pancreatic Unit, Glasgow Royal Infirmary, Glasgow, G5 0SF, Scotland, UK. · South Western Sydney Clinical School, UNSW, Liverpool, Liverpool 2170, NSW, Australia. · Key laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Center for Cancer Bioinformatics, Peking University Cancer Hospital & Institute, Beijing, 100142, China. · Australian Pancreatic Cancer Genome Initiative (APGI), Sydney, Darlinghurst 2010, NSW, Australia. irooman@vub.be. · Oncology Research Centre, Vrije Universiteit Brussel, Brussels, 1090, Belgium. irooman@vub.be. ·Nat Commun · Pubmed #30504844.

ABSTRACT: Whereas genomic aberrations in the SLIT-ROBO pathway are frequent in pancreatic ductal adenocarcinoma (PDAC), their function in the pancreas is unclear. Here we report that in pancreatitis and PDAC mouse models, epithelial Robo2 expression is lost while Robo1 expression becomes most prominent in the stroma. Cell cultures of mice with loss of epithelial Robo2 (Pdx1

2 Article Removing physiological motion from intravital and clinical functional imaging data. 2018

Warren, Sean C / Nobis, Max / Magenau, Astrid / Mohammed, Yousuf H / Herrmann, David / Moran, Imogen / Vennin, Claire / Conway, James Rw / Mélénec, Pauline / Cox, Thomas R / Wang, Yingxiao / Morton, Jennifer P / Welch, Heidi Ce / Strathdee, Douglas / Anderson, Kurt I / Phan, Tri Giang / Roberts, Michael S / Timpson, Paul. ·Kinghorn Cancer Centre, Garvan Institute of Medical Research, University of New South Wales, Sydney, Australia. · St Vincent's Clinical School, Faculty of Medicine, University of New South Wales, Sydney, Australia. · Therapeutics Research Centre, Diamantina Institute, Faculty of Medicine, University of Queensland, Woolloongabba, Australia. · Immunology Division, Garvan Institute of Medical Research, Sydney, Australia. · Department of Bioengineering, Institute of Engineering in Medicine, University of California, San Diego, San Diego, United States. · Cancer Research UK Beatson Institute, Glasgow, United Kingdom. · Signalling Programme, Babraham Institute, Cambridge, United Kingdom. · Francis Crick Institute, London, United Kingdom. · Therapeutics Research Centre, School of Pharmacy and Medical Sciences, University of South Australia, Adelaide, Australia. ·Elife · Pubmed #29985127.

ABSTRACT: Intravital microscopy can provide unique insights into the function of biological processes in a native context. However, physiological motion caused by peristalsis, respiration and the heartbeat can present a significant challenge, particularly for functional readouts such as fluorescence lifetime imaging (FLIM), which require longer acquisition times to obtain a quantitative readout. Here, we present and benchmark

3 Article Intravital Imaging to Monitor Therapeutic Response in Moving Hypoxic Regions Resistant to PI3K Pathway Targeting in Pancreatic Cancer. 2018

Conway, James R W / Warren, Sean C / Herrmann, David / Murphy, Kendelle J / Cazet, Aurélie S / Vennin, Claire / Shearer, Robert F / Killen, Monica J / Magenau, Astrid / Mélénec, Pauline / Pinese, Mark / Nobis, Max / Zaratzian, Anaiis / Boulghourjian, Alice / Da Silva, Andrew M / Del Monte-Nieto, Gonzalo / Adam, Arne S A / Harvey, Richard P / Haigh, Jody J / Wang, Yingxiao / Croucher, David R / Sansom, Owen J / Pajic, Marina / Caldon, C Elizabeth / Morton, Jennifer P / Timpson, Paul. ·Garvan Institute of Medical Research and The Kinghorn Cancer Centre, Cancer Division, Sydney, NSW 2010, Australia. · Garvan Institute of Medical Research and The Kinghorn Cancer Centre, Cancer Division, Sydney, NSW 2010, Australia; St Vincent's Clinical School, Faculty of Medicine, University of NSW, Sydney, NSW 2010, Australia. · St Vincent's Clinical School, Faculty of Medicine, University of NSW, Sydney, NSW 2010, Australia; Developmental and Stem Cell Biology Division, Victor Chang Cardiac Research Institute, Sydney, NSW 2010, Australia. · Developmental and Stem Cell Biology Division, Victor Chang Cardiac Research Institute, Sydney, NSW 2010, Australia. · St Vincent's Clinical School, Faculty of Medicine, University of NSW, Sydney, NSW 2010, Australia; Developmental and Stem Cell Biology Division, Victor Chang Cardiac Research Institute, Sydney, NSW 2010, Australia; School of Biotechnology and Biomolecular Science, University of New South Wales, Sydney, NSW 2033, Australia. · Australian Centre for Blood Diseases, Monash University, Melbourne, VIC 3004, Australia. · Department of Bioengineering, University of Illinois, Urbana-Champaign, Urbana, IL 61801, USA. · Garvan Institute of Medical Research and The Kinghorn Cancer Centre, Cancer Division, Sydney, NSW 2010, Australia; St Vincent's Clinical School, Faculty of Medicine, University of NSW, Sydney, NSW 2010, Australia; School of Medicine and Medical Science, University College Dublin, Belfield, Dublin 4, Ireland. · Cancer Research UK Beatson Institute, Switchback Road, Bearsden, Glasgow G61 1BD, UK; Institute of Cancer Sciences, University of Glasgow, Glasgow G61 1QH, UK. · Cancer Research UK Beatson Institute, Switchback Road, Bearsden, Glasgow G61 1BD, UK; Institute of Cancer Sciences, University of Glasgow, Glasgow G61 1QH, UK. Electronic address: j.morton@beatson.gla.ac.uk. · Garvan Institute of Medical Research and The Kinghorn Cancer Centre, Cancer Division, Sydney, NSW 2010, Australia; St Vincent's Clinical School, Faculty of Medicine, University of NSW, Sydney, NSW 2010, Australia. Electronic address: p.timpson@garvan.org.au. ·Cell Rep · Pubmed #29898401.

ABSTRACT: Application of advanced intravital imaging facilitates dynamic monitoring of pathway activity upon therapeutic inhibition. Here, we assess resistance to therapeutic inhibition of the PI3K pathway within the hypoxic microenvironment of pancreatic ductal adenocarcinoma (PDAC) and identify a phenomenon whereby pronounced hypoxia-induced resistance is observed for three clinically relevant inhibitors. To address this clinical problem, we have mapped tumor hypoxia by both immunofluorescence and phosphorescence lifetime imaging of oxygen-sensitive nanoparticles and demonstrate that these hypoxic regions move transiently around the tumor. To overlay this microenvironmental information with drug response, we applied a FRET biosensor for Akt activity, which is a key effector of the PI3K pathway. Performing dual intravital imaging of drug response in different tumor compartments, we demonstrate an improved drug response to a combination therapy using the dual mTORC1/2 inhibitor AZD2014 with the hypoxia-activated pro-drug TH-302.

4 Article A RhoA-FRET Biosensor Mouse for Intravital Imaging in Normal Tissue Homeostasis and Disease Contexts. 2017

Nobis, Max / Herrmann, David / Warren, Sean C / Kadir, Shereen / Leung, Wilfred / Killen, Monica / Magenau, Astrid / Stevenson, David / Lucas, Morghan C / Reischmann, Nadine / Vennin, Claire / Conway, James R W / Boulghourjian, Alice / Zaratzian, Anaiis / Law, Andrew M / Gallego-Ortega, David / Ormandy, Christopher J / Walters, Stacey N / Grey, Shane T / Bailey, Jacqueline / Chtanova, Tatyana / Quinn, Julian M W / Baldock, Paul A / Croucher, Peter I / Schwarz, Juliane P / Mrowinska, Agata / Zhang, Lei / Herzog, Herbert / Masedunskas, Andrius / Hardeman, Edna C / Gunning, Peter W / Del Monte-Nieto, Gonzalo / Harvey, Richard P / Samuel, Michael S / Pajic, Marina / McGhee, Ewan J / Johnsson, Anna-Karin E / Sansom, Owen J / Welch, Heidi C E / Morton, Jennifer P / Strathdee, Douglas / Anderson, Kurt I / Timpson, Paul. ·The Garvan Institute of Medical Research, St. Vincent's Clinical School, Faculty of Medicine, University of New South Wales, Sydney, NSW 2010, Australia. · Cancer Research UK Beatson Institute, Switchback Road, Bearsden, Glasgow G611BD, UK. · Neuromuscular and Regenerative Medicine Unit, University of New South Wales, Sydney, NSW 2010, Australia; Oncology Research Unit, School of Medical Sciences, University of New South Wales, Sydney, NSW 2010, Australia. · Neuromuscular and Regenerative Medicine Unit, University of New South Wales, Sydney, NSW 2010, Australia. · Oncology Research Unit, School of Medical Sciences, University of New South Wales, Sydney, NSW 2010, Australia. · Developmental and Stem Cell Biology Division, Victor Chang Cardiac Research Institute, Sydney, NSW 2010, Australia; St. Vincent's Clinical School of Biotechnology and Biomolecular Sciences, University of New South Wales, Sydney, NSW 2052, Australia. · Centre for Cancer Biology, SA Pathology and University of South Australia School of Medicine, University of Adelaide, Adelaide, SA 5000, Australia. · Signalling Programme, Babraham Institute, Cambridge CB223AT, UK. · Francis Crick Institute, London NW11AT, UK. Electronic address: kurt.anderson@crick.ac.uk. · The Garvan Institute of Medical Research, St. Vincent's Clinical School, Faculty of Medicine, University of New South Wales, Sydney, NSW 2010, Australia. Electronic address: p.timpson@garvan.org.au. ·Cell Rep · Pubmed #28978480.

ABSTRACT: The small GTPase RhoA is involved in a variety of fundamental processes in normal tissue. Spatiotemporal control of RhoA is thought to govern mechanosensing, growth, and motility of cells, while its deregulation is associated with disease development. Here, we describe the generation of a RhoA-fluorescence resonance energy transfer (FRET) biosensor mouse and its utility for monitoring real-time activity of RhoA in a variety of native tissues in vivo. We assess changes in RhoA activity during mechanosensing of osteocytes within the bone and during neutrophil migration. We also demonstrate spatiotemporal order of RhoA activity within crypt cells of the small intestine and during different stages of mammary gestation. Subsequently, we reveal co-option of RhoA activity in both invasive breast and pancreatic cancers, and we assess drug targeting in these disease settings, illustrating the potential for utilizing this mouse to study RhoA activity in vivo in real time.

5 Article Transient tissue priming via ROCK inhibition uncouples pancreatic cancer progression, sensitivity to chemotherapy, and metastasis. 2017

Vennin, Claire / Chin, Venessa T / Warren, Sean C / Lucas, Morghan C / Herrmann, David / Magenau, Astrid / Melenec, Pauline / Walters, Stacey N / Del Monte-Nieto, Gonzalo / Conway, James R W / Nobis, Max / Allam, Amr H / McCloy, Rachael A / Currey, Nicola / Pinese, Mark / Boulghourjian, Alice / Zaratzian, Anaiis / Adam, Arne A S / Heu, Celine / Nagrial, Adnan M / Chou, Angela / Steinmann, Angela / Drury, Alison / Froio, Danielle / Giry-Laterriere, Marc / Harris, Nathanial L E / Phan, Tri / Jain, Rohit / Weninger, Wolfgang / McGhee, Ewan J / Whan, Renee / Johns, Amber L / Samra, Jaswinder S / Chantrill, Lorraine / Gill, Anthony J / Kohonen-Corish, Maija / Harvey, Richard P / Biankin, Andrew V / Anonymous241184 / Evans, T R Jeffry / Anderson, Kurt I / Grey, Shane T / Ormandy, Christopher J / Gallego-Ortega, David / Wang, Yingxiao / Samuel, Michael S / Sansom, Owen J / Burgess, Andrew / Cox, Thomas R / Morton, Jennifer P / Pajic, Marina / Timpson, Paul. ·The Kinghorn Cancer Centre, Garvan Institute of Medical Research, Sydney, New South Wales 2010, Australia. · St. Vincent's Clinical School, Faculty of Medicine, University of New South Wales, Sydney, New South Wales 2010, Australia. · Developmental and Stem Cell Biology Division, Victor Chang Cardiac Research Institute, Sydney, New South Wales 2010, Australia. · Biomedical Imaging Facility, Mark Wainwright Analytical Centre, Lowy Cancer Research Centre, University of New South Wales, Sydney, New South Wales 2052, Australia. · Department of Pathology, St. Vincent's Hospital, Sydney, New South Wales 2010, Australia. · Illawarra Health and Medical Research Institute, University of Wollongong, Wollongong, New South Wales 2522, Australia. · Immune Imaging Program, Centenary Institute, University of Sydney, Sydney, New South Wales 2006, Australia. · University of Sydney Medical School, Sydney, New South Wales 2006, Australia. · Department of Dermatology, Royal Prince Alfred Hospital, Camperdown, New South Wales 2050, Australia. · Cancer Research UK Beatson Institute, Glasgow, Scotland G61 BD, U.K. · Cancer Diagnosis and Pathology Research Group, Kolling Institute of Medical Research and Royal North Shore Hospital, Sydney, New South Wales 2065, Australia. · University of Sydney, Sydney, New South Wales 2006, Australia. · Australian Pancreatic Cancer Genome Initiative. · Department of Surgery, Royal North Shore Hospital, Sydney, New South Wales 2065, Australia. · Macarthur Cancer Therapy Centre, Campbelltown Hospital, Sydney, New South Wales 2560, Australia. · School of Medicine, Western Sydney University, Penrith, Sydney, New South Wales 2751, Australia. · School of Biotechnology and Biomolecular Science, University of New South Wales, Sydney, New South Wales 2052, Australia. · Wolfson Wohl Cancer Research Centre, Institute of Cancer Sciences, University of Glasgow, Scotland G61 BD, U.K. · West of Scotland Pancreatic Unit, Glasgow Royal Infirmary, Scotland G61 BD, U.K. · Department of Bioengineering, Institute of Engineering in Medicine, University of California, San Diego, San Diego, CA 92121, USA. · Centre for Cancer Biology, SA Pathology and University of South Australia School of Medicine, University of Adelaide, Adelaide, South Australia 5000, Australia. · The Kinghorn Cancer Centre, Garvan Institute of Medical Research, Sydney, New South Wales 2010, Australia. m.pajic@garvan.org.au p.timpson@garvan.org.au. ·Sci Transl Med · Pubmed #28381539.

ABSTRACT: The emerging standard of care for patients with inoperable pancreatic cancer is a combination of cytotoxic drugs gemcitabine and Abraxane, but patient response remains moderate. Pancreatic cancer development and metastasis occur in complex settings, with reciprocal feedback from microenvironmental cues influencing both disease progression and drug response. Little is known about how sequential dual targeting of tumor tissue tension and vasculature before chemotherapy can affect tumor response. We used intravital imaging to assess how transient manipulation of the tumor tissue, or "priming," using the pharmaceutical Rho kinase inhibitor Fasudil affects response to chemotherapy. Intravital Förster resonance energy transfer imaging of a cyclin-dependent kinase 1 biosensor to monitor the efficacy of cytotoxic drugs revealed that priming improves pancreatic cancer response to gemcitabine/Abraxane at both primary and secondary sites. Transient priming also sensitized cells to shear stress and impaired colonization efficiency and fibrotic niche remodeling within the liver, three important features of cancer spread. Last, we demonstrate a graded response to priming in stratified patient-derived tumors, indicating that fine-tuned tissue manipulation before chemotherapy may offer opportunities in both primary and metastatic targeting of pancreatic cancer.

6 Article Intravital FRAP Imaging using an E-cadherin-GFP Mouse Reveals Disease- and Drug-Dependent Dynamic Regulation of Cell-Cell Junctions in Live Tissue. 2016

Erami, Zahra / Herrmann, David / Warren, Sean C / Nobis, Max / McGhee, Ewan J / Lucas, Morghan C / Leung, Wilfred / Reischmann, Nadine / Mrowinska, Agata / Schwarz, Juliane P / Kadir, Shereen / Conway, James R W / Vennin, Claire / Karim, Saadia A / Campbell, Andrew D / Gallego-Ortega, David / Magenau, Astrid / Murphy, Kendelle J / Ridgway, Rachel A / Law, Andrew M / Walters, Stacey N / Grey, Shane T / Croucher, David R / Zhang, Lei / Herzog, Herbert / Hardeman, Edna C / Gunning, Peter W / Ormandy, Christopher J / Evans, T R Jeffry / Strathdee, Douglas / Sansom, Owen J / Morton, Jennifer P / Anderson, Kurt I / Timpson, Paul. ·Cancer Research UK Beatson Institute, Switchback Road, Bearsden, Glasgow G61 1BD, UK. · The Garvan Institute of Medical Research and The Kinghorn Cancer Centre, Cancer Division, St Vincent's Clinical School, Faculty of Medicine, University of New South Wales, Sydney, NSW 2010, Australia. · Neuromuscular and Regenerative Medicine Unit, School of Medical Sciences, University of New South Wales, Sydney, NSW 2052, Australia. · Oncology Research Unit, School of Medical Sciences, University of New South Wales, Sydney, NSW 2052, Australia. · Cancer Research UK Beatson Institute, Switchback Road, Bearsden, Glasgow G61 1BD, UK. Electronic address: k.anderson@beatson.gla.ac.uk. · The Garvan Institute of Medical Research and The Kinghorn Cancer Centre, Cancer Division, St Vincent's Clinical School, Faculty of Medicine, University of New South Wales, Sydney, NSW 2010, Australia. Electronic address: p.timpson@garvan.org.au. ·Cell Rep · Pubmed #26725115.

ABSTRACT: E-cadherin-mediated cell-cell junctions play a prominent role in maintaining the epithelial architecture. The disruption or deregulation of these adhesions in cancer can lead to the collapse of tumor epithelia that precedes invasion and subsequent metastasis. Here we generated an E-cadherin-GFP mouse that enables intravital photobleaching and quantification of E-cadherin mobility in live tissue without affecting normal biology. We demonstrate the broad applications of this mouse by examining E-cadherin regulation in multiple tissues, including mammary, brain, liver, and kidney tissue, while specifically monitoring E-cadherin mobility during disease progression in the pancreas. We assess E-cadherin stability in native pancreatic tissue upon genetic manipulation involving Kras and p53 or in response to anti-invasive drug treatment and gain insights into the dynamic remodeling of E-cadherin during in situ cancer progression. FRAP in the E-cadherin-GFP mouse, therefore, promises to be a valuable tool to fundamentally expand our understanding of E-cadherin-mediated events in native microenvironments.