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De Vleeschauwer SI, van de Ven M, Oudin A, Debusschere K, Connor K, Byrne AT, Ram D, Rhebergen AM, Raeves YD, Dahlhoff M, Dangles-Marie V, Hermans ER. OBSERVE: guidelines for the refinement of rodent cancer models. Nat Protoc 2024:10.1038/s41596-024-00998-w. [PMID: 38992214 DOI: 10.1038/s41596-024-00998-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Accepted: 02/23/2024] [Indexed: 07/13/2024]
Abstract
Existing guidelines on the preparation (Planning Research and Experimental Procedures on Animals: Recommendations for Excellence (PREPARE)) and reporting (Animal Research: Reporting of In Vivo Experiments (ARRIVE)) of animal experiments do not provide a clear and standardized approach for refinement during in vivo cancer studies, resulting in the publication of generic methodological sections that poorly reflect the attempts made at accurately monitoring different pathologies. Compliance with the 3Rs guidelines has mainly focused on reduction and replacement; however, refinement has been harder to implement. The Oncology Best-practices: Signs, Endpoints and Refinements for in Vivo Experiments (OBSERVE) guidelines are the result of a European initiative supported by EurOPDX and INFRAFRONTIER, and aim to facilitate the refinement of studies using in vivo cancer models by offering robust and practical recommendations on approaches to research scientists and animal care staff. We listed cancer-specific clinical signs as a reference point and from there developed sets of guidelines for a wide variety of rodent models, including genetically engineered models and patient derived xenografts. In this Consensus Statement, we systematically and comprehensively address refinement and monitoring approaches during the design and execution of murine cancer studies. We elaborate on the appropriate preparation of tumor-initiating biologicals and the refinement of tumor-implantation methods. We describe the clinical signs to monitor associated with tumor growth, the appropriate follow-up of animals tailored to varying clinical signs and humane endpoints, and an overview of severity assessment in relation to clinical signs, implantation method and tumor characteristics. The guidelines provide oncology researchers clear and robust guidance for the refinement of in vivo cancer models.
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Affiliation(s)
| | - Marieke van de Ven
- Laboratory Animal Facility, The Netherlands Cancer Institute, Amsterdam, the Netherlands
| | - Anaïs Oudin
- NORLUX Neuro-Oncology Laboratory, Department of Oncology, Luxembourg Institute of Health, Luxembourg, Luxembourg
| | - Karlijn Debusschere
- Animal Core Facility VUB, Brussels, Belgium
- Core ARTH Animal Facilities, Medicine and Health Sciences Ghent University, Ghent, Belgium
| | - Kate Connor
- Department of Physiology and Medical Physics, Royal College of Surgeons in Ireland, Dublin, Ireland
| | - Annette T Byrne
- Department of Physiology and Medical Physics, Royal College of Surgeons in Ireland, Dublin, Ireland
| | - Doreen Ram
- Laboratory Animal Facility, The Netherlands Cancer Institute, Amsterdam, the Netherlands
| | | | | | - Maik Dahlhoff
- Institute of in vivo and in vitro Models, University of Veterinary Medicine Vienna, Vienna, Austria
| | | | - Els R Hermans
- Laboratory Animal Facility, The Netherlands Cancer Institute, Amsterdam, the Netherlands
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2
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Sechrist ZR, Lee G, Schwarz EM, Cole CL. Validation of dual energy X-ray absorptiometry for longitudinal quantification of tumor burden in a murine model of pancreatic ductal adenocarcinoma. PLoS One 2024; 19:e0292196. [PMID: 38165848 PMCID: PMC10760650 DOI: 10.1371/journal.pone.0292196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Accepted: 12/12/2023] [Indexed: 01/04/2024] Open
Abstract
Noninvasive imaging is central to preclinical, in vivo models of pancreatic ductal adenocarcinoma (PDAC). While bioluminescent imaging (BLI) is a gold standard, its signal is dependent on the metabolic activity of tumor cells. In contrast, dual energy X-ray absorptiometry (DEXA) is a direct measure of body composition. Thus, we aimed to assess its potential for longitudinal quantification of tumor burden versus BLI. We utilized the KCKO murine model of PDAC and subjected tumor-bearing (n = 20) and non-tumor control (NTC) (n = 10) animals to weekly BLI and DEXA measurements for up to 10 weeks. While BLI detected tumors at 1-week, it failed to detect tumor growth, displayed a decreasing trend overtime (slope = -9.0x108; p = 0.0028), and terminal signal did not correlate with ex vivo tumor mass (r = 0.01853; p = 0.6286). In contrast, DEXA did not detect elevated changes in abdominal cavity lean mass until week 2 post inoculation and tumors were not visible until week 3, but successfully quantified a tumor growth trend (slope = 0.7322; p<0.0001), and strongly correlated with final tumor mass (r = 0.9351; p<0.0001). These findings support the use of BLI for initial tumor engraftment and persistence but demonstrate the superiority of DEXA for longitudinal tumor burden studies. As tumor detection by DEXA is not restricted to luciferase expressing models, future studies to assess its value in various cancer models and as an in vivo outcome measure of treatment efficacy are warranted.
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Affiliation(s)
- Zachary R. Sechrist
- Department of Pathology and Laboratory Medicine, University of Rochester Medical Center, Rochester, New York, United States of America
- Department of Surgical Oncology, University of Rochester Medical Center, Rochester, New York, United States of America
- Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, New York, United States of America
| | - Grace Lee
- Department of Biology, University of Rochester, Rochester, New York, United States of America
| | - Edward M. Schwarz
- Department of Pathology and Laboratory Medicine, University of Rochester Medical Center, Rochester, New York, United States of America
- Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, New York, United States of America
| | - Calvin L. Cole
- Department of Pathology and Laboratory Medicine, University of Rochester Medical Center, Rochester, New York, United States of America
- Department of Surgical Oncology, University of Rochester Medical Center, Rochester, New York, United States of America
- Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, New York, United States of America
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3
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Cortez NE, Rodriguez Lanzi C, Hong BV, Xu J, Wang F, Chen S, Ramsey JJ, Pontifex MG, Müller M, Vauzour D, Vahmani P, Hwang CI, Matsukuma K, Mackenzie GG. A ketogenic diet in combination with gemcitabine increases survival in pancreatic cancer KPC mice. CANCER RESEARCH COMMUNICATIONS 2022; 2:951-965. [PMID: 36382086 PMCID: PMC9648418 DOI: 10.1158/2767-9764.crc-22-0256] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Revised: 08/07/2022] [Accepted: 08/09/2022] [Indexed: 06/01/2023]
Abstract
Pancreatic ductal adenocarcinoma (PDAC) continues to be a major health problem. A ketogenic diet (KD), characterized by a very low carbohydrate and high fat composition, has gained attention for its anti-tumor potential. We evaluated the effect and mechanisms of feeding a strict KD alone or in combination with gemcitabine in the autochthonous LSL-KrasG12D/+; LSL-Trp53 R172H/+; Pdx1-Cre (KPC) mouse model. For this purpose, both male and female pancreatic tumor-bearing KPC mice were allocated to a control diet (CD; %kcal: 70% carb, 14% protein, 16% fat), a KD (%kcal: 14% protein, 1% carb, 85% fat), a CD + gemcitabine (CG), or a KD + gemcitabine (KG) group. Mice fed a KD alone or in combination with gemcitabine showed significantly increased blood β-hydroxybutyrate levels compared to mice fed a CD or CG. KPC mice fed a KG had a significant increase in overall median survival compared to KPC mice fed a CD (increased overall median survival by 42%). Interestingly, when the data was disaggregated by sex, the effect of a KG was significant in female KPC mice (60% increase in median overall survival), but not in male KPC mice (28% increase in median overall survival). Mechanistically, the enhanced survival response to a KD combined with gemcitabine was multifactorial, including inhibition of ERK and AKT pathways, regulation of fatty acid metabolism and the modulation of the gut microbiota. In summary, a KD in combination with gemcitabine appears beneficial as a treatment strategy in PDAC in KPC mice, deserving further clinical evaluation.
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Affiliation(s)
- Natalia E. Cortez
- Department of Nutrition, University of California, Davis. Davis, California
| | | | - Brian V. Hong
- Department of Nutrition, University of California, Davis. Davis, California
| | - Jihao Xu
- Department of Microbiology and Molecular Genetics, University of California Davis, Davis, California
| | - Fangyi Wang
- Department of Animal Science, University of California, Davis. Davis, California
| | - Shuai Chen
- Division of Biostatistics, Department of public Health Sciences, University of California, Davis. Davis, California
| | - Jon J. Ramsey
- Department of Molecular Biosciences, University of California Davis, Davis, California
| | - Matthew G. Pontifex
- Norwich Medical School, Biomedical Research Centre, University of East Anglia, Norwich, United Kingdom
| | - Michael Müller
- Norwich Medical School, Biomedical Research Centre, University of East Anglia, Norwich, United Kingdom
| | - David Vauzour
- Norwich Medical School, Biomedical Research Centre, University of East Anglia, Norwich, United Kingdom
| | - Payam Vahmani
- Department of Animal Science, University of California, Davis. Davis, California
| | - Chang-il Hwang
- Department of Microbiology and Molecular Genetics, University of California Davis, Davis, California
- University of California, Davis Comprehensive Cancer Center, Sacramento, California
| | - Karen Matsukuma
- University of California, Davis Comprehensive Cancer Center, Sacramento, California
- Department of Pathology and Laboratory Medicine, Sacramento, California
| | - Gerardo G. Mackenzie
- Department of Nutrition, University of California, Davis. Davis, California
- University of California, Davis Comprehensive Cancer Center, Sacramento, California
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Ewers KM, Patil S, Kopp W, Thomale J, Quilitz T, Magerhans A, Wang X, Hessmann E, Dobbelstein M. HSP90 Inhibition Synergizes with Cisplatin to Eliminate Basal-like Pancreatic Ductal Adenocarcinoma Cells. Cancers (Basel) 2021; 13:cancers13246163. [PMID: 34944784 PMCID: PMC8699576 DOI: 10.3390/cancers13246163] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Revised: 11/30/2021] [Accepted: 12/03/2021] [Indexed: 12/20/2022] Open
Abstract
Simple Summary Pancreatic cancer is currently difficult to treat, but the drug cisplatin represents one of the most important therapeutic options. We find that cells derived from this cancer fall into two classes regarding their sensitivity towards cisplatin, and we observe that cells with high expression levels of GATA6 and microRNA 200 are mostly sensitive. However, those cells that respond poorly to cisplatin can be sensitized by drugs that inhibit HSP90, a protein that helps other proteins to fold properly. This was also found in a mouse model of pancreatic cancer. Our results suggest that the combination of cisplatin with HSP90-inhibitory drugs might improve the treatment of pancreatic cancer. Abstract To improve the treatment of pancreatic ductal adenocarcinoma (PDAC), a promising strategy consists of personalized chemotherapy based on gene expression profiles. Investigating a panel of PDAC-derived human cell lines, we found that their sensitivities towards cisplatin fall in two distinct classes. The platinum-sensitive class is characterized by the expression of GATA6, miRNA-200a, and miRNA-200b, which might be developable as predictive biomarkers. In the case of resistant PDAC cells, we identified a synergism of cisplatin with HSP90 inhibitors. Mechanistic explanations of this synergy include the degradation of Fanconi anemia pathway factors upon HSP90 inhibition. Treatment with the drug combination resulted in increased DNA damage and chromosome fragmentation, as we have reported previously for ovarian cancer cells. On top of this, HSP90 inhibition also enhanced the accumulation of DNA-bound platinum. We next investigated an orthotopic syngeneic animal model consisting of tumors arising from KPC cells (LSL-KrasG12D/+; LSL-Trp53R172H/+; Pdx-1-Cre, C57/BL6 genetic background). Here again, when treating established tumors, the combination of cisplatin with the HSP90 inhibitor onalespib was highly effective and almost completely prevented further tumor growth. We propose that the combination of platinum drugs and HSP90 inhibitors might be worth testing in the clinics for the treatment of cisplatin-resistant PDACs.
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Affiliation(s)
- Katharina M. Ewers
- Institute of Molecular Oncology, Göttingen Center of Molecular Biosciences (GZMB), University Medical Center Göttingen, Justus von Liebig Weg 11, 37077 Göttingen, Germany; (K.M.E.); (T.Q.); (A.M.)
- Clinical Research Unit 5002, KFO5002, University Medical Center Göttingen, 37075 Göttingen, Germany; (S.P.); (W.K.); (E.H.)
| | - Shilpa Patil
- Clinical Research Unit 5002, KFO5002, University Medical Center Göttingen, 37075 Göttingen, Germany; (S.P.); (W.K.); (E.H.)
- Department of Gastroenterology, Gastrointestinal Oncology and Endocrinology, University Medical Center Göttingen, 37075 Göttingen, Germany
| | - Waltraut Kopp
- Clinical Research Unit 5002, KFO5002, University Medical Center Göttingen, 37075 Göttingen, Germany; (S.P.); (W.K.); (E.H.)
- Department of Gastroenterology, Gastrointestinal Oncology and Endocrinology, University Medical Center Göttingen, 37075 Göttingen, Germany
| | - Jürgen Thomale
- Institute of Cell Biology (Cancer Research), University of Duisburg-Essen Medical School, 45141 Essen, Germany;
| | - Tabea Quilitz
- Institute of Molecular Oncology, Göttingen Center of Molecular Biosciences (GZMB), University Medical Center Göttingen, Justus von Liebig Weg 11, 37077 Göttingen, Germany; (K.M.E.); (T.Q.); (A.M.)
- Clinical Research Unit 5002, KFO5002, University Medical Center Göttingen, 37075 Göttingen, Germany; (S.P.); (W.K.); (E.H.)
| | - Anna Magerhans
- Institute of Molecular Oncology, Göttingen Center of Molecular Biosciences (GZMB), University Medical Center Göttingen, Justus von Liebig Weg 11, 37077 Göttingen, Germany; (K.M.E.); (T.Q.); (A.M.)
- Clinical Research Unit 5002, KFO5002, University Medical Center Göttingen, 37075 Göttingen, Germany; (S.P.); (W.K.); (E.H.)
| | - Xin Wang
- Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, China;
| | - Elisabeth Hessmann
- Clinical Research Unit 5002, KFO5002, University Medical Center Göttingen, 37075 Göttingen, Germany; (S.P.); (W.K.); (E.H.)
- Department of Gastroenterology, Gastrointestinal Oncology and Endocrinology, University Medical Center Göttingen, 37075 Göttingen, Germany
| | - Matthias Dobbelstein
- Institute of Molecular Oncology, Göttingen Center of Molecular Biosciences (GZMB), University Medical Center Göttingen, Justus von Liebig Weg 11, 37077 Göttingen, Germany; (K.M.E.); (T.Q.); (A.M.)
- Clinical Research Unit 5002, KFO5002, University Medical Center Göttingen, 37075 Göttingen, Germany; (S.P.); (W.K.); (E.H.)
- Correspondence:
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Moerland JA, Zhang D, Reich LA, Carapellucci S, Lockwood B, Leal AS, Krieger-Burke T, Aleiwi B, Ellsworth E, Liby KT. The novel rexinoid MSU-42011 is effective for the treatment of preclinical Kras-driven lung cancer. Sci Rep 2020; 10:22244. [PMID: 33335263 PMCID: PMC7746742 DOI: 10.1038/s41598-020-79260-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Accepted: 12/07/2020] [Indexed: 12/13/2022] Open
Abstract
Effective drugs are needed for lung cancer, as this disease remains the leading cause of cancer-related deaths. Rexinoids are promising drug candidates for cancer therapy because of their ability to modulate genes involved in inflammation, cell proliferation or differentiation, and apoptosis through activation of the retinoid X receptor (RXR). The only currently FDA-approved rexinoid, bexarotene, is ineffective as a single agent for treating epithelial cancers and induces hypertriglyceridemia. Here, we used a previously validated screening paradigm to evaluate 23 novel rexinoids for biomarkers related to efficacy and safety. These biomarkers include suppression of inducible nitric oxide synthase (iNOS) and induction of sterol regulatory element-binding protein (SREBP). Because of its potent iNOS suppression, low SREBP induction, and activation of RXR, MSU-42011 was selected as our lead compound. We next used MSU-42011 to treat established tumors in a clinically relevant Kras-driven mouse model of lung cancer. KRAS is one of the most common driver mutations in human lung cancer and correlates with aggressive disease progression and poor patient prognosis. Ultrasound imaging was used to detect and monitor tumor development and growth over time in the lungs of the A/J mice. MSU-42011 markedly decreased the tumor number, size, and histopathology of lung tumors compared to the control and bexarotene groups. Histological sections of lung tumors in mice treated with MSU-42011 exhibited reduced cell density and fewer actively proliferating cells compared to the control and bexarotene-treated tumors. Although bexarotene significantly (p < 0.01) elevated plasma triglycerides and cholesterol, treatment with MSU-42011 did not increase these biomarkers, demonstrating a more favorable toxicity profile in vivo. The combination of MSU-42011 and carboplatin and paclitaxel reduced macrophages in the lung and increased activation markers of CD8+T cells compared to the control groups. Our results validate our screening paradigm for in vitro testing of novel rexinoids and demonstrate the potential for MSU-42011 to be developed for the treatment of KRAS-driven lung cancer.
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Affiliation(s)
- Jessica A Moerland
- Department of Pharmacology and Toxicology, Michigan State University, B430 Life Science Building, 1355 Bogue Street, East Lansing, MI, 48824, USA
| | - Di Zhang
- Department of Pharmacology and Toxicology, Michigan State University, B430 Life Science Building, 1355 Bogue Street, East Lansing, MI, 48824, USA
| | - Lyndsey A Reich
- Department of Pharmacology and Toxicology, Michigan State University, B430 Life Science Building, 1355 Bogue Street, East Lansing, MI, 48824, USA
| | - Sarah Carapellucci
- Department of Pharmacology and Toxicology, Michigan State University, B430 Life Science Building, 1355 Bogue Street, East Lansing, MI, 48824, USA
| | - Beth Lockwood
- Department of Pharmacology and Toxicology, Michigan State University, B430 Life Science Building, 1355 Bogue Street, East Lansing, MI, 48824, USA
| | - Ana S Leal
- Department of Pharmacology and Toxicology, Michigan State University, B430 Life Science Building, 1355 Bogue Street, East Lansing, MI, 48824, USA
| | - Teresa Krieger-Burke
- Department of Pharmacology and Toxicology, Michigan State University, B430 Life Science Building, 1355 Bogue Street, East Lansing, MI, 48824, USA
- In Vivo Facility, Michigan State University, East Lansing, MI, USA
| | - Bilal Aleiwi
- Department of Pharmacology and Toxicology, Michigan State University, B430 Life Science Building, 1355 Bogue Street, East Lansing, MI, 48824, USA
- Medicial Chemistry Core, Michigan State University, East Lansing, MI, USA
| | - Edmund Ellsworth
- Department of Pharmacology and Toxicology, Michigan State University, B430 Life Science Building, 1355 Bogue Street, East Lansing, MI, 48824, USA
- Medicial Chemistry Core, Michigan State University, East Lansing, MI, USA
| | - Karen T Liby
- Department of Pharmacology and Toxicology, Michigan State University, B430 Life Science Building, 1355 Bogue Street, East Lansing, MI, 48824, USA.
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Hessmann E, Buchholz SM, Demir IE, Singh SK, Gress TM, Ellenrieder V, Neesse A. Microenvironmental Determinants of Pancreatic Cancer. Physiol Rev 2020; 100:1707-1751. [DOI: 10.1152/physrev.00042.2019] [Citation(s) in RCA: 86] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Pancreatic ductal adenocarcinoma (PDAC) belongs to the most lethal solid tumors in humans. A histological hallmark feature of PDAC is the pronounced tumor microenvironment (TME) that dynamically evolves during tumor progression. The TME consists of different non-neoplastic cells such as cancer-associated fibroblasts, immune cells, endothelial cells, and neurons. Furthermore, abundant extracellular matrix components such as collagen and hyaluronic acid as well as matricellular proteins create a highly dynamic and hypovascular TME with multiple biochemical and physical interactions among the various cellular and acellular components that promote tumor progression and therapeutic resistance. In recent years, intensive research efforts have resulted in a significantly improved understanding of the biology and pathophysiology of the TME in PDAC, and novel stroma-targeted approaches are emerging that may help to improve the devastating prognosis of PDAC patients. However, none of anti-stromal therapies has been approved in patients so far, and there is still a large discrepancy between multiple successful preclinical results and subsequent failure in clinical trials. Furthermore, recent findings suggest that parts of the TME may also possess tumor-restraining properties rendering tailored therapies even more challenging.
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Affiliation(s)
- Elisabeth Hessmann
- Department of Gastroenterology, Gastrointestinal Oncology, and Endocrinology, University Medical Centre Goettingen, Georg August University, Goettingen, Germany; Department of Surgery, Klinikum rechts der Isar, Technische Universität München, School of Medicine Munich, Munich, Germany; Sonderforschungsbereich/Collaborative Research Centre 1321 Modeling and Targeting Pancreatic Cancer, Munich, Germany; Deutsches Konsortium für Translationale Krebsforschung (DKTK) Munich Site, Munich, Germany; and
| | - Soeren M. Buchholz
- Department of Gastroenterology, Gastrointestinal Oncology, and Endocrinology, University Medical Centre Goettingen, Georg August University, Goettingen, Germany; Department of Surgery, Klinikum rechts der Isar, Technische Universität München, School of Medicine Munich, Munich, Germany; Sonderforschungsbereich/Collaborative Research Centre 1321 Modeling and Targeting Pancreatic Cancer, Munich, Germany; Deutsches Konsortium für Translationale Krebsforschung (DKTK) Munich Site, Munich, Germany; and
| | - Ihsan Ekin Demir
- Department of Gastroenterology, Gastrointestinal Oncology, and Endocrinology, University Medical Centre Goettingen, Georg August University, Goettingen, Germany; Department of Surgery, Klinikum rechts der Isar, Technische Universität München, School of Medicine Munich, Munich, Germany; Sonderforschungsbereich/Collaborative Research Centre 1321 Modeling and Targeting Pancreatic Cancer, Munich, Germany; Deutsches Konsortium für Translationale Krebsforschung (DKTK) Munich Site, Munich, Germany; and
| | - Shiv K. Singh
- Department of Gastroenterology, Gastrointestinal Oncology, and Endocrinology, University Medical Centre Goettingen, Georg August University, Goettingen, Germany; Department of Surgery, Klinikum rechts der Isar, Technische Universität München, School of Medicine Munich, Munich, Germany; Sonderforschungsbereich/Collaborative Research Centre 1321 Modeling and Targeting Pancreatic Cancer, Munich, Germany; Deutsches Konsortium für Translationale Krebsforschung (DKTK) Munich Site, Munich, Germany; and
| | - Thomas M. Gress
- Department of Gastroenterology, Gastrointestinal Oncology, and Endocrinology, University Medical Centre Goettingen, Georg August University, Goettingen, Germany; Department of Surgery, Klinikum rechts der Isar, Technische Universität München, School of Medicine Munich, Munich, Germany; Sonderforschungsbereich/Collaborative Research Centre 1321 Modeling and Targeting Pancreatic Cancer, Munich, Germany; Deutsches Konsortium für Translationale Krebsforschung (DKTK) Munich Site, Munich, Germany; and
| | - Volker Ellenrieder
- Department of Gastroenterology, Gastrointestinal Oncology, and Endocrinology, University Medical Centre Goettingen, Georg August University, Goettingen, Germany; Department of Surgery, Klinikum rechts der Isar, Technische Universität München, School of Medicine Munich, Munich, Germany; Sonderforschungsbereich/Collaborative Research Centre 1321 Modeling and Targeting Pancreatic Cancer, Munich, Germany; Deutsches Konsortium für Translationale Krebsforschung (DKTK) Munich Site, Munich, Germany; and
| | - Albrecht Neesse
- Department of Gastroenterology, Gastrointestinal Oncology, and Endocrinology, University Medical Centre Goettingen, Georg August University, Goettingen, Germany; Department of Surgery, Klinikum rechts der Isar, Technische Universität München, School of Medicine Munich, Munich, Germany; Sonderforschungsbereich/Collaborative Research Centre 1321 Modeling and Targeting Pancreatic Cancer, Munich, Germany; Deutsches Konsortium für Translationale Krebsforschung (DKTK) Munich Site, Munich, Germany; and
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Buchholz SM, Goetze RG, Singh SK, Ammer-Herrmenau C, Richards FM, Jodrell DI, Buchholz M, Michl P, Ellenrieder V, Hessmann E, Neesse A. Depletion of Macrophages Improves Therapeutic Response to Gemcitabine in Murine Pancreas Cancer. Cancers (Basel) 2020; 12:E1978. [PMID: 32698524 PMCID: PMC7409345 DOI: 10.3390/cancers12071978] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Revised: 07/09/2020] [Accepted: 07/16/2020] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND The tumor microenvironment (TME) is composed of fibro-inflammatory cells and extracellular matrix (ECM) components. However, the exact contribution of the various TME compartments towards therapeutic response is unknown. Here, we aim to dissect the specific contribution of tumor-associated macrophages (TAMs) towards drug delivery and response in pancreatic ductal adenocarcinoma (PDAC). METHODS The effect of gemcitabine was assessed in human and murine macrophages, human pancreatic stellate cells (hPSCs), and tumor cells (L3.6pl, BxPC3 and KPC) in vitro. The drug metabolism of gemcitabine was analyzed by liquid chromatography-tandem mass spectrometry (LC-MS/MS). Preclinical studies were conducted using KrasG12D;p48-Cre and KrasG12D;p53172H;Pdx-Cre mice to investigate gemcitabine delivery at different stages of tumor progression and upon pharmacological TAM depletion. RESULTS Gemcitabine accumulation was significantly increased in murine PDAC tissue compared to pancreatic intraepithelial neoplasia (PanIN) lesions and healthy control pancreas tissue. In vitro, macrophages accumulated and rapidly metabolized gemcitabine resulting in a significant drug scavenging effect for gemcitabine. Finally, pharmacological TAM depletion enhanced therapeutic response to gemcitabine in tumor-bearing KPC mice. CONCLUSION Macrophages rapidly metabolize gemcitabine in vitro, and pharmacological depletion improves the therapeutic response to gemcitabine in vivo. Our study supports the notion that TAMs might be a promising therapeutic target in PDAC.
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Affiliation(s)
- Soeren M. Buchholz
- Department of Gastroenterology, Gastrointestinal Oncology and Endocrinology, University Medical Center Göttingen, 37075 Göttingen, Germany; (S.M.B.); (R.G.G.); (S.K.S.); (C.A.-H.); (V.E.); (E.H.)
| | - Robert G. Goetze
- Department of Gastroenterology, Gastrointestinal Oncology and Endocrinology, University Medical Center Göttingen, 37075 Göttingen, Germany; (S.M.B.); (R.G.G.); (S.K.S.); (C.A.-H.); (V.E.); (E.H.)
| | - Shiv K. Singh
- Department of Gastroenterology, Gastrointestinal Oncology and Endocrinology, University Medical Center Göttingen, 37075 Göttingen, Germany; (S.M.B.); (R.G.G.); (S.K.S.); (C.A.-H.); (V.E.); (E.H.)
| | - Christoph Ammer-Herrmenau
- Department of Gastroenterology, Gastrointestinal Oncology and Endocrinology, University Medical Center Göttingen, 37075 Göttingen, Germany; (S.M.B.); (R.G.G.); (S.K.S.); (C.A.-H.); (V.E.); (E.H.)
| | - Frances M. Richards
- Cancer Research UK Cambridge Institute, The University of Cambridge, Li Ka Shing Centre, Cambridge CB2 1TN, UK; (F.M.R.); (D.I.J.)
| | - Duncan I. Jodrell
- Cancer Research UK Cambridge Institute, The University of Cambridge, Li Ka Shing Centre, Cambridge CB2 1TN, UK; (F.M.R.); (D.I.J.)
| | - Malte Buchholz
- Department of Medicine, Division of Gastroenterology, Endocrinology and Metabolism, Philipps University Marburg, 35037 Marburg, Germany;
| | - Patrick Michl
- Department of Internal Medicine I, Martin-Luther-University of Halle-Wittenberg, 06120 Halle, Germany;
| | - Volker Ellenrieder
- Department of Gastroenterology, Gastrointestinal Oncology and Endocrinology, University Medical Center Göttingen, 37075 Göttingen, Germany; (S.M.B.); (R.G.G.); (S.K.S.); (C.A.-H.); (V.E.); (E.H.)
| | - Elisabeth Hessmann
- Department of Gastroenterology, Gastrointestinal Oncology and Endocrinology, University Medical Center Göttingen, 37075 Göttingen, Germany; (S.M.B.); (R.G.G.); (S.K.S.); (C.A.-H.); (V.E.); (E.H.)
| | - Albrecht Neesse
- Department of Gastroenterology, Gastrointestinal Oncology and Endocrinology, University Medical Center Göttingen, 37075 Göttingen, Germany; (S.M.B.); (R.G.G.); (S.K.S.); (C.A.-H.); (V.E.); (E.H.)
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Ramu I, Buchholz SM, Patzak MS, Goetze RG, Singh SK, Richards FM, Jodrell DI, Sipos B, Ströbel P, Ellenrieder V, Hessmann E, Neesse A. SPARC dependent collagen deposition and gemcitabine delivery in a genetically engineered mouse model of pancreas cancer. EBioMedicine 2019; 48:161-168. [PMID: 31597597 PMCID: PMC6838446 DOI: 10.1016/j.ebiom.2019.09.024] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Revised: 09/07/2019] [Accepted: 09/13/2019] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND Pancreatic ductal adenocarcinoma (PDAC) is characterised by extensive matrix deposition that has been implicated in impaired drug delivery and therapeutic resistance. Secreted protein acidic and rich in cysteine (SPARC) is a matricellular protein that regulates collagen deposition and is highly upregulated in the activated stroma subtype with poor prognosis in PDAC patients. METHODS KrasG12D;p48-Cre;SPARC-/- (KC-SPARC-/-) and KrasG12D;p48-Cre;SPARCWT (KC-SPARCWT) were generated and analysed at different stages of carcinogenesis by histological grading, immunohistochemistry for epithelial and stromal markers, survival and preclinical analysis. Pharmacokinetic and pharmacodynamic studies were conducted by liquid chromatography-tandem mass spectrometry (LC-MS/MS) and immunohistochemistry following gemcitabine treatment (100 mg/kg) in vivo. FINDINGS Global genetic ablation of SPARC in a KrasG12D driven mouse model resulted in significantly reduced overall and mature collagen deposition around early and advanced pancreatic intraepithelial neoplasia (PanIN) lesions and in invasive PDAC (p < .001). However, detailed pathological scoring and molecular analysis showed no effects on PanIN to PDAC progression, vessel density (CD31), tumour incidence, grading or metastatic frequency. Despite comparable tumour kinetics, ablation of SPARC resulted in a significantly shortened survival in KC-SPARC-/- mice (280 days versus 485 days, p < .03, log-rank-test). Using LC-MS/MS, we show that SPARC dependent collagen deposition does not affect intratumoural gemcitabine accumulation or immediate therapeutic response in tumour bearing KC-SPARCWT and KC-SPARC-/-mice. INTERPRETATION Global SPARC ablation reduces the collagen-rich microenvironment in murine PDAC. Moreover, global SPARC depletion did not affect tumour growth kinetics, grading or metastatic frequency. Notably, the dense-collagen matrix did not restrict access of gemcitabine to the tumour. These findings may have direct translational implications in clinical trial design.
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Affiliation(s)
- Iswarya Ramu
- Department of Gastroenterology and Gastrointestinal Oncology, University Medical Centre Göttingen, Germany
| | - Sören M Buchholz
- Department of Gastroenterology and Gastrointestinal Oncology, University Medical Centre Göttingen, Germany
| | - Melanie S Patzak
- Department of Gastroenterology and Gastrointestinal Oncology, University Medical Centre Göttingen, Germany
| | - Robert G Goetze
- Department of Gastroenterology and Gastrointestinal Oncology, University Medical Centre Göttingen, Germany
| | - Shiv K Singh
- Department of Gastroenterology and Gastrointestinal Oncology, University Medical Centre Göttingen, Germany
| | - Frances M Richards
- Cancer Research UK Cambridge Institute, Li Ka Shing Centre, The University of Cambridge, United Kingdom
| | - Duncan I Jodrell
- Cancer Research UK Cambridge Institute, Li Ka Shing Centre, The University of Cambridge, United Kingdom
| | - Bence Sipos
- Institute of Pathology and Neuropathology, University Clinic Tübingen, Germany
| | - Philipp Ströbel
- Institute of Pathology, University Medical Centre Göttingen, Germany
| | - Volker Ellenrieder
- Department of Gastroenterology and Gastrointestinal Oncology, University Medical Centre Göttingen, Germany
| | - Elisabeth Hessmann
- Department of Gastroenterology and Gastrointestinal Oncology, University Medical Centre Göttingen, Germany
| | - Albrecht Neesse
- Department of Gastroenterology and Gastrointestinal Oncology, University Medical Centre Göttingen, Germany.
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Goetze RG, Buchholz SM, Ou N, Zhang Q, Patil S, Schirmer M, Singh SK, Ellenrieder V, Hessmann E, Lu QB, Neesse A. Preclinical Evaluation of 1,2-Diamino-4,5-Dibromobenzene in Genetically Engineered Mouse Models of Pancreatic Cancer. Cells 2019; 8:cells8060563. [PMID: 31181844 PMCID: PMC6627568 DOI: 10.3390/cells8060563] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2019] [Revised: 06/04/2019] [Accepted: 06/06/2019] [Indexed: 12/15/2022] Open
Abstract
Background: Pancreatic ductal adenocarcinoma (PDAC) is highly resistant to standard chemo- and radiotherapy. Recently, a new class of non-platinum-based halogenated molecules (called FMD compounds) was discovered that selectively kills cancer cells. Here, we investigate the potential of 1,2-Diamino-4,5-dibromobenzene (2Br-DAB) in combination with standard chemotherapy and radiotherapy in murine and human PDAC. Methods: Cell viability and colony formation was performed in human (Panc1, BxPC3, PaTu8988t, MiaPaCa) and three murine LSL-KrasG12D/+;LSL-Trp53R172H/+;Pdx-1-Cre (KPC) pancreatic cancer cell lines. In vivo, preclinical experiments were conducted in LSL-KrasG12D/+;p48-Cre (KC) and KPC mice using 2Br-DAB (7 mg/kg, i.p.), +/- radiation (10 × 1.8 Gy), gemcitabine (100 mg/kg, i.p.), or a combination. Tumor growth and therapeutic response were assessed by high-resolution ultrasound and immunohistochemistry. Results: 2Br-DAB significantly reduced cell viability in human and murine pancreatic cancer cell lines in a dose-dependent manner. In particular, colony formation in human Panc1 cells was significantly decreased upon 25 µM 2Br-DAB + radiation treatment compared with vehicle control (p = 0.03). In vivo, 2Br-DAB reduced tumor frequency in KC mice. In the KPC model, 2Br-DAB or gemcitabine monotherapy had comparable therapeutic effects. Furthermore, the combination of gemcitabine and 2Br-DAB or 2Br-DAB and 18 Gy irradiation showed additional antineoplastic effects. Conclusions: 2Br-DAB is effective in killing pancreatic cancer cells in vitro. 2Br-DAB was not toxic in vivo, and additional antineoplastic effects were observed in combination with irradiation.
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Affiliation(s)
- Robert G Goetze
- Department of Gastroenterology and Gastrointestinal Oncology, University Medicine Goettingen, 37075 Goettingen, Germany.
| | - Soeren M Buchholz
- Department of Gastroenterology and Gastrointestinal Oncology, University Medicine Goettingen, 37075 Goettingen, Germany.
| | - Ning Ou
- Department of Physics and Astronomy, University of Waterloo, Waterloo, ON N2L 3G1, Canada.
| | - Qinrong Zhang
- Department of Physics and Astronomy, University of Waterloo, Waterloo, ON N2L 3G1, Canada.
| | - Shilpa Patil
- Department of Gastroenterology and Gastrointestinal Oncology, University Medicine Goettingen, 37075 Goettingen, Germany.
| | - Markus Schirmer
- Department of Radiotherapy and Radiation Oncology, University Medicine Goettingen, 37075 Goettingen, Germany.
| | - Shiv K Singh
- Department of Gastroenterology and Gastrointestinal Oncology, University Medicine Goettingen, 37075 Goettingen, Germany.
| | - Volker Ellenrieder
- Department of Gastroenterology and Gastrointestinal Oncology, University Medicine Goettingen, 37075 Goettingen, Germany.
| | - Elisabeth Hessmann
- Department of Gastroenterology and Gastrointestinal Oncology, University Medicine Goettingen, 37075 Goettingen, Germany.
| | - Qing-Bin Lu
- Department of Physics and Astronomy, University of Waterloo, Waterloo, ON N2L 3G1, Canada.
| | - Albrecht Neesse
- Department of Gastroenterology and Gastrointestinal Oncology, University Medicine Goettingen, 37075 Goettingen, Germany.
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10
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Patzak MS, Kari V, Patil S, Hamdan FH, Goetze RG, Brunner M, Gaedcke J, Kitz J, Jodrell DI, Richards FM, Pilarsky C, Gruetzmann R, Rümmele P, Knösel T, Hessmann E, Ellenrieder V, Johnsen SA, Neesse A. Cytosolic 5'-nucleotidase 1A is overexpressed in pancreatic cancer and mediates gemcitabine resistance by reducing intracellular gemcitabine metabolites. EBioMedicine 2019; 40:394-405. [PMID: 30709769 PMCID: PMC6413477 DOI: 10.1016/j.ebiom.2019.01.037] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2018] [Revised: 01/08/2019] [Accepted: 01/17/2019] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Cytosolic 5'-nucleotidase 1A (NT5C1A) dephosphorylates non-cyclic nucleoside monophosphates to produce nucleosides and inorganic phosphates. Here, we investigate NT5C1A expression in pancreatic ductal adenocarcinoma (PDAC) and its impact on gemcitabine metabolism and therapeutic efficacy. METHODS NT5C1A expression was determined by semiquantitative immunohistochemistry using tissue microarrays. Gemcitabine metabolites and response were assessed in several human and murine PDAC cell lines using crystal violet assays, Western blot, viability assays, and liquid chromatography tandem mass-spectrometry (LC-MS/MS). FINDINGS NT5C1A was strongly expressed in tumor cells of a large subgroup of resected PDAC patients in two independent patient cohorts (44-56% score 2 and 8-26% score 3, n = 414). In contrast, NT5C1A was expressed at very low levels in the tumor stroma, and neither stromal nor tumoral expression was a prognostic marker for postoperative survival. In vitro, NT5C1A overexpression increased gemcitabine resistance by reducing apoptosis levels and significantly decreased intracellular amounts of cytotoxic dFdCTP in +NT5C1A tumor cells. Co-culture experiments with conditioned media from +NT5C1A PSCs improved gemcitabine efficacy in tumor cells. In vivo, therapeutic efficacy of gemcitabine was significantly decreased and serum levels of the inactive gemcitabine metabolite dFdU significantly increased in mice bearing NT5C1A overexpressing tumors. INTERPRETATION NT5C1A is robustly expressed in tumor cells of resected PDAC patients. Moreover, NT5C1A mediates gemcitabine resistance by decreasing the amount of intracellular dFdCTP, leading to reduced tumor cell apoptosis and larger pancreatic tumors in mice. Further studies should clarify the role of NT5C1A as novel predictor for gemcitabine treatment response in patients with PDAC.
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MESH Headings
- 5'-Nucleotidase/genetics
- Animals
- Biomarkers, Tumor
- Carcinoma, Pancreatic Ductal/drug therapy
- Carcinoma, Pancreatic Ductal/genetics
- Carcinoma, Pancreatic Ductal/metabolism
- Carcinoma, Pancreatic Ductal/pathology
- Cell Line, Tumor
- Deoxycytidine/analogs & derivatives
- Deoxycytidine/pharmacokinetics
- Deoxycytidine/pharmacology
- Disease Models, Animal
- Drug Resistance, Neoplasm/genetics
- Gene Expression
- Humans
- Mice
- Mice, Transgenic
- Models, Biological
- Pancreatic Neoplasms/drug therapy
- Pancreatic Neoplasms/genetics
- Pancreatic Neoplasms/metabolism
- Pancreatic Neoplasms/pathology
- Prognosis
- Xenograft Model Antitumor Assays
- Gemcitabine
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Affiliation(s)
- Melanie S Patzak
- University Medical Center Goettingen, Department of Gastroenterology and Gastrointestinal Oncology, Goettingen, Germany
| | - Vijayalakshmi Kari
- University Medical Center Goettingen, Department of General, Visceral and Pediatric Surgery, Goettingen, Germany
| | - Shilpa Patil
- University Medical Center Goettingen, Department of Gastroenterology and Gastrointestinal Oncology, Goettingen, Germany
| | - Feda H Hamdan
- University Medical Center Goettingen, Department of General, Visceral and Pediatric Surgery, Goettingen, Germany
| | - Robert G Goetze
- University Medical Center Goettingen, Department of Gastroenterology and Gastrointestinal Oncology, Goettingen, Germany
| | - Marius Brunner
- University Medical Center Goettingen, Department of Gastroenterology and Gastrointestinal Oncology, Goettingen, Germany
| | - Jochen Gaedcke
- University Medical Center Goettingen, Department of General, Visceral and Pediatric Surgery, Goettingen, Germany
| | - Julia Kitz
- University Medical Center Goettingen, Institute of Pathology, Goettingen, Germany
| | - Duncan I Jodrell
- Cancer Research UK Cambridge Institute, University of Cambridge, Cambridge, United Kingdom
| | - Frances M Richards
- Cancer Research UK Cambridge Institute, University of Cambridge, Cambridge, United Kingdom
| | - Christian Pilarsky
- University Medical Center Erlangen, Department of Surgery, Erlangen, Germany
| | - Robert Gruetzmann
- University Medical Center Erlangen, Department of Surgery, Erlangen, Germany
| | - Petra Rümmele
- University Medical Center Erlangen, Institute of Pathology, Erlangen, Germany
| | - Thomas Knösel
- Ludwig Maximilian University Munich, Institute of Pathology, Munich, Germany
| | - Elisabeth Hessmann
- University Medical Center Goettingen, Department of Gastroenterology and Gastrointestinal Oncology, Goettingen, Germany
| | - Volker Ellenrieder
- University Medical Center Goettingen, Department of Gastroenterology and Gastrointestinal Oncology, Goettingen, Germany
| | - Steven A Johnsen
- University Medical Center Goettingen, Department of General, Visceral and Pediatric Surgery, Goettingen, Germany
| | - Albrecht Neesse
- University Medical Center Goettingen, Department of Gastroenterology and Gastrointestinal Oncology, Goettingen, Germany.
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