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Ramzy A, Edeer N, Baker RK, O’Dwyer S, Mojibian M, Verchere CB, Kieffer TJ. Insulin Null β-cells Have a Prohormone Processing Defect That Is Not Reversed by AAV Rescue of Proinsulin Expression. Endocrinology 2022; 163:6569864. [PMID: 35435956 PMCID: PMC9119694 DOI: 10.1210/endocr/bqac051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/23/2022] [Indexed: 11/19/2022]
Abstract
Up to 6% of diabetes has a monogenic cause including mutations in the insulin gene, and patients are candidates for a gene therapy. Using a mouse model of permanent neonatal diabetes, we assessed the efficacy of an adeno-associated virus (AAV)-mediated gene therapy. We used AAVs with a rat insulin 1 promoter (Ins1) regulating a human insulin gene (INS; AAV Ins1-INS) or native mouse insulin 1 (Ins1; AAV Ins-Ins1) to deliver an insulin gene to β-cells of constitutive insulin null mice (Ins1-/-Ins2-/-) and adult inducible insulin-deficient mice [Ins1-/-Ins2f/f PdxCreER and Ins1-/-Ins2f/f mice administered AAV Ins1-Cre)]. Although AAV Ins1-INS could successfully infect and confer insulin expression to β-cells, insulin null β-cells had a prohormone processing defect. Secretion of abundant proinsulin transiently reversed diabetes. We reattempted therapy with AAV Ins1-Ins1, but Ins1-/-Ins2-/- β-cells still had a processing defect of both replaced Ins1 and pro-islet amyloid polypeptide (proIAPP). In adult inducible models, β-cells that lost insulin expression developed a processing defect that resulted in impaired proIAPP processing and elevated circulating proIAPP, and cells infected with AAV Ins1-Ins1 to rescue insulin expression secreted proinsulin. We assessed the subcellular localization of prohormone convertase 1/3 (PC1/3) and detected defective sorting of PC1/3 to glycogen-containing vacuoles and retention in the endoplasmic reticulum as a potential mechanism underlying defective processing. We provide evidence that persistent production of endogenous proinsulin within β-cells is necessary for β-cells to be able to properly store and process proinsulin.
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Affiliation(s)
- Adam Ramzy
- Department of Cellular and Physiological Sciences, Life Sciences Institute, University of British Columbia, Vancouver, BC, Canada
| | - Nazde Edeer
- Department of Cellular and Physiological Sciences, Life Sciences Institute, University of British Columbia, Vancouver, BC, Canada
| | - Robert K Baker
- Department of Cellular and Physiological Sciences, Life Sciences Institute, University of British Columbia, Vancouver, BC, Canada
| | - Shannon O’Dwyer
- Department of Cellular and Physiological Sciences, Life Sciences Institute, University of British Columbia, Vancouver, BC, Canada
| | - Majid Mojibian
- Department of Cellular and Physiological Sciences, Life Sciences Institute, University of British Columbia, Vancouver, BC, Canada
| | - C Bruce Verchere
- Department of Pathology and Laboratory Medicine, BC Children’s Hospital Research Institute, Vancouver, BC, Canada
- Department of Surgery, University of British Columbia, Vancouver, BC, Canada
| | - Timothy J Kieffer
- Correspondence: Timothy J. Kieffer, PhD, Department of Cellular and Physiological Sciences, University of British Columbia, 2350 Health Sciences Mall, Vancouver, V6T 1Z3, Canada.
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Mercier F, Passot G, Bonnot PE, Cashin P, Ceelen W, Decullier E, Villeneuve L, Walter T, Levine EA, Glehen O, Baik SH, Baratti D, Bhatt A, De Hingh I, De Simone M, Dubé P, Edwards RP, Franko J, Gonzalez-Bayon L, Gushchin V, Holtzman MP, Hsieh MC, Kecmanovic D, Lee KW, Lehmann K, Liu Y, Mehta S, Morris DL, O’Dwyer S, Orsenigo E, Pande PK, Park EJ, Pingpank JF, Piso P, Rajan F, Rau B, Sardi A, Sideris L, Sommariva A, Spiliotis J, Tentes AAK, Teo M, Yarema R, Younan R, Zaveri SS, Zeh HJ, Abba J, Abboud K, Alyami M, Arvieux C, Bakrin N, Bereder JM, Bouzard D, Brigand C, Carrère S, Delroeux D, Dumont F, Eveno C, Facy O, Guyon F, Ferron G, Kianmanesh R, Dico RL, Lorimier G, Marchal F, Mariani P, Meeus P, Msika S, Ortega-Deballon P, Paquette B, Peyrat P, Pirro N, Pocard M, Porcheron J, Quenet F, Rat P, Sgarbura O, Thibaudeau E, Tuech JJ, Zinzindohoue F. An International Registry of Peritoneal Carcinomatosis from Appendiceal Goblet Cell Carcinoma Treated with Cytoreductive Surgery and Hyperthermic Intraperitoneal Chemotherapy. World J Surg 2022; 46:1336-1343. [PMID: 35286418 DOI: 10.1007/s00268-022-06498-w] [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] [Accepted: 02/08/2022] [Indexed: 11/24/2022]
Abstract
PURPOSE Peritoneal carcinomatosis from appendiceal goblet cell carcinoma (A-GCC) is a rare and aggressive form of appendiceal tumor. Cytoreductive surgery (CRS) and hyperthermic intra peritoneal chemotherapy (HIPEC) was reported as an interesting alternative regarding survival compared to surgery without HIPEC and/or systemic chemotherapy. Our aim was to evaluate the impact of CRS and HIPEC for patients presenting A-GCC through an international registry. METHODS A prospective multicenter international database was retrospectively searched to identify all patients with A-GCC tumor and peritoneal metastases who underwent CRS and HIPEC through the Peritoneal Surface Oncology Group International (PSOGI). The post-operative complications, long-term results, and principal prognostic factors were analyzed. RESULTS The analysis included 83 patients. After a median follow-up of 47 months, the median overall survival (OS) was 34.6 months. The 3- and 5-year OS was 48.5% and 35.7%, respectively. Patients who underwent complete macroscopic CRS had a significantly better survival than those treated with incomplete CRS. The 5-year OS was 44% and 0% for patients who underwent complete, and incomplete CRS, respectively (HR 9.65, p < 0.001). Lymph node involvement and preoperative chemotherapy were also predictive of a worse prognosis. There were 3 postoperative deaths, and 30% of the patients had major complications. CONCLUSION CRS and HIPEC may increase long-term survival in selected patients with peritoneal metastases of A-GCC origin, especially when complete CRS is achieved. Ideally, randomized control trials or more retrospective data are needed to confirm CRS and HIPEC as the gold standard in this pathology.
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Affiliation(s)
- Frederic Mercier
- Department of Surgical Oncology, CHU Montreal, University of Montreal, 1000 St-Denis, Montreal, QC, H2X 0C1, Canada. .,The Department of Surgical Oncology, CHU Lyon Sud, Hospices civils de Lyon, University of Lyon, Lyon, France.
| | - Guillaume Passot
- The Department of Surgical Oncology, CHU Lyon Sud, Hospices civils de Lyon, University of Lyon, Lyon, France.,EMR 37-38, Lyon 1 University, Lyon, France
| | | | - Peter Cashin
- Department of Surgery, Akademiska Sjukhuset, Uppsala University Hospital, Uppasala, Sweden
| | - Wim Ceelen
- Department of Gastrointestinal Surgery, Gent University Hospital, Ghent, Belgium
| | - Evelyne Decullier
- Hospices Civils de Lyon, Pôle Santé Publique, Unité de Recherche Clinique, Lyon, France
| | - Laurent Villeneuve
- EMR 37-38, Lyon 1 University, Lyon, France.,Hospices Civils de Lyon, Pôle Santé Publique, Unité de Recherche Clinique, Lyon, France
| | - Thomas Walter
- Department of Gastroenterology and Oncology, Hospices Civils de Lyon, Edouard Herriot Hospital University of Lyon, Lyon, France
| | - Edward A Levine
- Section of Surgical Oncology, Department of General Surgery, Wake Forest School of Medicine, Winston-Salem, NC, USA
| | - Olivier Glehen
- The Department of Surgical Oncology, CHU Lyon Sud, Hospices civils de Lyon, University of Lyon, Lyon, France.,EMR 37-38, Lyon 1 University, Lyon, France
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Erener S, Ellis CE, Ramzy A, Glavas MM, O’Dwyer S, Pereira S, Wang T, Pang J, Bruin JE, Riedel MJ, Baker RK, Webber TD, Lesina M, Blüher M, Algül H, Kopp JL, Herzig S, Kieffer TJ. Deletion of pancreas-specific miR-216a reduces beta-cell mass and inhibits pancreatic cancer progression in mice. Cell Rep Med 2021; 2:100434. [PMID: 34841287 PMCID: PMC8606901 DOI: 10.1016/j.xcrm.2021.100434] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Revised: 03/08/2021] [Accepted: 10/05/2021] [Indexed: 12/20/2022]
Abstract
miRNAs have crucial functions in many biological processes and are candidate biomarkers of disease. Here, we show that miR-216a is a conserved, pancreas-specific miRNA with important roles in pancreatic islet and acinar cells. Deletion of miR-216a in mice leads to a reduction in islet size, β-cell mass, and insulin levels. Single-cell RNA sequencing reveals a subpopulation of β-cells with upregulated acinar cell markers under a high-fat diet. miR-216a is induced by TGF-β signaling, and inhibition of miR-216a increases apoptosis and decreases cell proliferation in pancreatic cells. Deletion of miR-216a in the pancreatic cancer-prone mouse line KrasG12D;Ptf1aCreER reduces the propensity of pancreatic cancer precursor lesions. Notably, circulating miR-216a levels are elevated in both mice and humans with pancreatic cancer. Collectively, our study gives insights into how β-cell mass and acinar cell growth are modulated by a pancreas-specific miRNA and also suggests miR-216a as a potential biomarker for diagnosis of pancreatic diseases.
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Affiliation(s)
- Suheda Erener
- Department of Cellular & Physiological Sciences, Life Sciences Institute, University of British Columbia, Vancouver, BC, Canada
- Institute for Diabetes and Cancer, Helmholtz Center Munich, Neuherberg, Germany
| | - Cara E. Ellis
- Department of Cellular & Physiological Sciences, Life Sciences Institute, University of British Columbia, Vancouver, BC, Canada
| | - Adam Ramzy
- Department of Cellular & Physiological Sciences, Life Sciences Institute, University of British Columbia, Vancouver, BC, Canada
| | - Maria M. Glavas
- Department of Cellular & Physiological Sciences, Life Sciences Institute, University of British Columbia, Vancouver, BC, Canada
| | - Shannon O’Dwyer
- Department of Cellular & Physiological Sciences, Life Sciences Institute, University of British Columbia, Vancouver, BC, Canada
| | - Sandra Pereira
- Department of Cellular & Physiological Sciences, Life Sciences Institute, University of British Columbia, Vancouver, BC, Canada
| | - Tom Wang
- Department of Cellular & Physiological Sciences, Life Sciences Institute, University of British Columbia, Vancouver, BC, Canada
| | - Janice Pang
- Department of Cellular & Physiological Sciences, Life Sciences Institute, University of British Columbia, Vancouver, BC, Canada
| | - Jennifer E. Bruin
- Department of Cellular & Physiological Sciences, Life Sciences Institute, University of British Columbia, Vancouver, BC, Canada
- Department of Biology and Institute of Biochemistry, Carleton University, Ottawa, ON, Canada
| | - Michael J. Riedel
- Department of Cellular & Physiological Sciences, Life Sciences Institute, University of British Columbia, Vancouver, BC, Canada
| | - Robert K. Baker
- Department of Cellular & Physiological Sciences, Life Sciences Institute, University of British Columbia, Vancouver, BC, Canada
| | - Travis D. Webber
- Department of Cellular & Physiological Sciences, Life Sciences Institute, University of British Columbia, Vancouver, BC, Canada
| | - Marina Lesina
- Comprehensive Cancer Center Munich, Technical University of Munich, Munich, Germany
| | - Matthias Blüher
- Helmholtz Institute for Metabolic, Obesity and Vascular Research (HI-MAG) of the Helmholtz Zentrum München at the University of Leipzig and University Hospital Leipzig, Leipzig, Germany
- Medical Department III – Endocrinology, Nephrology, Rheumatology, University of Leipzig Medical Center, Leipzig, Germany
| | - Hana Algül
- Comprehensive Cancer Center Munich, Technical University of Munich, Munich, Germany
| | - Janel L. Kopp
- Department of Cellular & Physiological Sciences, Life Sciences Institute, University of British Columbia, Vancouver, BC, Canada
| | - Stephan Herzig
- Institute for Diabetes and Cancer, Helmholtz Center Munich, Neuherberg, Germany
- Joint Heidelberg-IDC Translational Diabetes Program, Inner Medicine 1, Heidelberg University Hospital, Heidelberg, Germany
- Technical University Munich, 85764 Neuherberg, Germany
- Deutsches Zentrum für Diabetesforschung, 85764 Neuherberg, Germany
| | - Timothy J. Kieffer
- Department of Cellular & Physiological Sciences, Life Sciences Institute, University of British Columbia, Vancouver, BC, Canada
- Department of Surgery, University of British Columbia, Vancouver, BC, Canada
- School of Biomedical Engineering, University of British Columbia, Vancouver, BC, Canada
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O’Dwyer S, Moyle W, Taylor T, Creese J, Zimmer-Gembeck M. HOMICIDAL THOUGHTS IN FAMILY CAREGIVERS OF PEOPLE WITH DEMENTIA. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.2912] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- S. O’Dwyer
- Medical School, University of Exeter, Exeter, United Kingdom,
- Griffith University, Brisbane, Queensland, Australia
| | - W. Moyle
- Griffith University, Brisbane, Queensland, Australia
| | - T. Taylor
- Griffith University, Brisbane, Queensland, Australia
| | - J. Creese
- Griffith University, Brisbane, Queensland, Australia
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O’Dwyer S, Moyle W, Taylor T, Creese J, Zimmer-Gembeck M. IN THEIR OWN WORDS: HOW FAMILY CAREGIVERS OF PEOPLE WITH DEMENTIA DEFINE RESILIENCE. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.1651] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- S. O’Dwyer
- Medical School, University of Exeter, Exeter, United Kingdom,
- Griffith University, Brisbane, Queensland, Australia
| | - W. Moyle
- Griffith University, Brisbane, Queensland, Australia
| | - T. Taylor
- Griffith University, Brisbane, Queensland, Australia
| | - J. Creese
- Griffith University, Brisbane, Queensland, Australia
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