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Ruiz CF, McDonnell R, Kaplan J, de Jong J, Shugrue C, Rudolph MC, Gorelick FS, Wysolmerski J, Rodeheffer M, Muzumdar MD. Abstract PR015: Excess dietary oleic acid primes the pancreas for cancer. Cancer Res 2022. [DOI: 10.1158/1538-7445.panca22-pr015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Abstract
Human epidemiologic studies support a strong link between increased pancreatic adenocarcinoma (PDAC) risk and high fat diet (HFD) consumption, obesity, and overall energy imbalance. Given the rapid rise in worldwide obesity rates and the prevalence of western diets rich in fat, deciphering these mechanisms is not only a societal imperative but also represents a key untapped target to develop novel strategies for prevention and therapy. The translational relevance of diet research, however, has been limited by inconsistencies in fat source and consumption across human populations and mouse studies. Therefore, whether and how specific dietary fatty acids drive cancer development is poorly understood. To identify commonly consumed dietary fats capable of promoting pancreatic tumorigenesis, we fed a novel panel of 12 isocaloric HFDs – differing solely in fat source and representing the diversity of modern human fat consumption (as per statistics from the USDA) – to an oncogenic Kras-driven mouse model (KC: Pdx1-Cre; KrasLSL-G12D/+) that closely mimics the genetic and histologic features of human PDAC progression. Surprisingly, we found that diets rich in oleic acid (OA), a monounsaturated fat typically associated with good health, were strongly correlated with enhanced precancerous pancreatic intraepithelial neoplasia (PanIN) formation, arguing that OA enhances Kras-induced cellular transformation and early progression. High-oleic diets (HODs) and OA treatment of primary acinar cells induced loss of acinar cell identity and acquisition of ductal markers, consistent with a direct role for OA in acinar-to-ductal metaplasia (ADM), a prerequisite step in early PDAC development. Lipidomic analyses of plasma, liver, and muscle of mice fed HODs revealed greater circulating OA levels and increased tissue incorporation of OA into the acyl chains of phospholipids and sphingolipids, which make up the plasma membrane of cells and mediate intracellular and extracellular signaling. Furthermore, plasma and tissue OA levels more strongly correlated with tumor development, suggesting that direct OA pancreatic tissue incorporation could drive tumorigenesis. Indeed, molecular and biochemical analyses confirmed upregulation in the expression of de novo lipogenesis genes, alterations in lipid metabolism, and enhanced mTOR signaling in pancreata of mice fed HODs. Overall, these results directly link dietary OA to pancreatic lipid metabolism and transformation during PDAC development and highlight the complex pleiotropic effects of dietary fatty acids on health and disease: OA, while beneficial for heart health, may promote the development of certain cancers, such as PDAC. Uncovering the links between specific dietary fats and tumorigenesis are critical to enable precision nutritional guidance for the prevention and treatment of PDAC and potentially other obesity-associated cancers.
Citation Format: Christian F. Ruiz, Rylee McDonnell, Jennifer Kaplan, Jasper de Jong, Christine Shugrue, Michael C. Rudolph, Fred S. Gorelick, John Wysolmerski, Matthew Rodeheffer, Mandar D. Muzumdar. Excess dietary oleic acid primes the pancreas for cancer [abstract]. In: Proceedings of the AACR Special Conference on Pancreatic Cancer; 2022 Sep 13-16; Boston, MA. Philadelphia (PA): AACR; Cancer Res 2022;82(22 Suppl):Abstract nr PR015.
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Van Boxem K, Rijsdijk M, Hans G, de Jong J, Kallewaard JW, Vissers K, van Kleef M, Rathmell JP, Van Zundert J. Recommended Dexamethasone Dose for Epidural Administration: Response to the Comments of Koetsier. Pain Pract 2019; 19:345-346. [PMID: 30588728 DOI: 10.1111/papr.12758] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Koen Van Boxem
- Department of Anesthesiology, Critical Care and Multidisciplinary Pain Center, Ziekenhuis Oost-Limburg, Genk/Lanaken, Belgium
| | - Mienke Rijsdijk
- Pain Clinic, Department of Anesthesiology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Guy Hans
- Multidisciplinary Pain Center, Antwerp University Hospital, Edegem, Belgium.,Laboratory for Pain Research, University of Antwerp, Wilrijk, Belgium
| | - Jasper de Jong
- Department of Pain Management, Westfriesgasthuis, Hoorn, The Netherlands
| | - Jan Willem Kallewaard
- Department of Anesthesiology and Pain Management, Rijnstate Ziekenhuis, Arnhem, The Netherlands
| | - Kris Vissers
- Department of Anesthesiology, Pain and Palliative Medicine, Radboud University Nijmegen Medical Center, Nijmegen, The Netherlands
| | - Maarten van Kleef
- Department of Anesthesiology and Pain Management, University Medical Centre Maastricht, Maastricht, The Netherlands
| | - James P Rathmell
- Department of Anesthesia and Critical Care, Massachusetts General Hospital, Boston, Massachusetts, U.S.A.,Department of Anesthesia, Harvard Medical School, Boston, Massachusetts, U.S.A
| | - Jan Van Zundert
- Department of Anesthesiology, Critical Care and Multidisciplinary Pain Center, Ziekenhuis Oost-Limburg, Genk/Lanaken, Belgium.,Department of Anesthesiology and Pain Management, University Medical Centre Maastricht, Maastricht, The Netherlands
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Van Boxem K, Rijsdijk M, Hans G, de Jong J, Kallewaard JW, Vissers K, van Kleef M, Rathmell JP, Van Zundert J. Safe Use of Epidural Corticosteroid Injections: Recommendations of the WIP Benelux Work Group. Pain Pract 2018; 19:61-92. [PMID: 29756333 PMCID: PMC7379698 DOI: 10.1111/papr.12709] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2018] [Accepted: 05/03/2018] [Indexed: 12/11/2022]
Abstract
BACKGROUND Epidural corticosteroid injections are used frequently worldwide in the treatment of radicular pain. Concerns have arisen involving rare major neurologic injuries after this treatment. Recommendations to prevent these complications have been published, but local implementation is not always feasible due to local circumstances, necessitating local recommendations based on literature review. METHODS A work group of 4 stakeholder pain societies in Belgium, The Netherlands, and Luxembourg (Benelux) has reviewed the literature involving neurological complications after epidural corticosteroid injections and possible safety measures to prevent these major neurologic injuries. RESULTS Twenty-six considerations and recommendations were selected by the work group. These involve the use of imaging, injection equipment particulate and nonparticulate corticosteroids, epidural approach, and maximal volume to be injected. CONCLUSION Raising awareness about possible neurological complications and adoption of safety measures recommended by the work group aim at reducing the risks for these devastating events.
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Affiliation(s)
- Koen Van Boxem
- Department of Anesthesiology, Critical Care and Multidisciplinary Pain Center, Ziekenhuis Oost-Limburg, Genk/Lanaken, Belgium
| | - Mienke Rijsdijk
- Pain Clinic, Department of Anesthesiology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Guy Hans
- Multidisciplinary Pain Center, Antwerp University Hospital, Edegem, Belgium.,Laboratory for Pain Research, University of Antwerp, Wilrijk, Belgium
| | - Jasper de Jong
- Department of Pain Management, Westfriesgasthuis, Hoorn, The Netherlands
| | - Jan Willem Kallewaard
- Department of Anesthesiology and Pain Management, Rijnstate Ziekenhuis, Arnhem, The Netherlands
| | - Kris Vissers
- Department of Anesthesiology, Pain and Palliative Medicine, Radboud University Nijmegen Medical Center, Nijmegen, The Netherlands
| | - Maarten van Kleef
- Department of Anesthesiology and Pain Management, University Medical Centre Maastricht, Maastricht, The Netherlands
| | - James P Rathmell
- Department of Anesthesia and Critical Care, Massachusetts General Hospital, Boston, Massachusetts, U.S.A.,Department of Anesthesiology, Perioperative, and Pain Medicine, Brigham and Women's Hospital, Boston, Massachusetts, U.S.A
| | - Jan Van Zundert
- Department of Anesthesiology, Critical Care and Multidisciplinary Pain Center, Ziekenhuis Oost-Limburg, Genk/Lanaken, Belgium.,Department of Anesthesiology and Pain Management, University Medical Centre Maastricht, Maastricht, The Netherlands
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Jespersen NZ, Larsen TJ, Peijs L, Daugaard S, Homøe P, Loft A, de Jong J, Mathur N, Cannon B, Nedergaard J, Pedersen BK, Møller K, Scheele C. A classical brown adipose tissue mRNA signature partly overlaps with brite in the supraclavicular region of adult humans. Cell Metab 2013; 17:798-805. [PMID: 23663743 DOI: 10.1016/j.cmet.2013.04.011] [Citation(s) in RCA: 426] [Impact Index Per Article: 38.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2013] [Revised: 04/07/2013] [Accepted: 04/18/2013] [Indexed: 12/21/2022]
Abstract
Human brown adipose tissue (BAT) has been detected in adults but was recently suggested to be of brite/beige origin. We collected BAT from the supraclavicular region in 21 patients undergoing surgery for suspected cancer in the neck area and assessed the gene expression of established murine markers for brown, brite/beige, and white adipocytes. We demonstrate that a classical brown expression signature, including upregulation of miR-206, miR-133b, LHX8, and ZIC1 and downregulation of HOXC8 and HOXC9, coexists with an upregulation of two newly established brite/beige markers, TBX1 and TMEM26. A similar mRNA expression profile was observed when comparing isolated human adipocytes from BAT and white adipose tissue (WAT) depots, differentiated in vitro. In conclusion, our data suggest that human BAT might consist of both classical brown and recruitable brite adipocytes, an observation important for future considerations on how to induce human BAT.
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Affiliation(s)
- Naja Zenius Jespersen
- Centre of Inflammation and Metabolism, Department of Infectious Diseases, Rigshospitalet, DK-2100 Copenhagen, Denmark
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