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Jacques FH, Apedaile BE, Danis I, Sikati-Foko V, Lecompte M, Fortin J. Motor Evoked Potential-A Pilot Study Looking at Reliability and Clinical Correlations in Multiple Sclerosis. J Clin Neurophysiol 2024; 41:357-364. [PMID: 36943437 PMCID: PMC11060055 DOI: 10.1097/wnp.0000000000001003] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/23/2023] Open
Abstract
PURPOSE Multiple sclerosis (MS) is a clinically heterogeneous disease. Biomarkers that can assess pathological processes that are unseen with conventional imaging remain an unmet need in MS disease management. Motor evoked potentials (MEPs) could be such a biomarker. To determine and follow longitudinal MEP reliability and correlations with clinical measures in MS patients. METHODS This is a single-center study in alemtuzumab-treated MS patients to evaluate temporal reliability of MEPs, identify MEP minimum detectible differences, and explore correlations with existing clinical scales. Ten MS patients recently treated with alemtuzumab were evaluated every 6 months over 3 years. Clinical evaluations consisted of expanded disability status scale, timed 25-foot walk, 6-minute walk, and nine-hole peg test. MEPs were measured twice, 2 weeks apart, every 6 months. RESULTS Eight patients completed all 3 years of study. The intraclass correlation coefficient for MEP parameters ranged from 0.76 to 0.98. TA latency and amplitude with facilitation significantly and strongly correlated with all clinical measures, whereas the MEP duration modestly correlated. Biceps latency with facilitation significantly and moderately correlated with 9-hole peg test. Longitudinal correlations demonstrated good predictive values for either clinical deterioration or improvement. CONCLUSIONS MEPs have excellent intrapatient and intrarater reliability, and TA MEPs significantly and strongly correlated with expanded disability status scale, 6-minute walk, and timed 25-foot walk, whereas biceps MEPs significantly and moderately correlated with nine-hole peg test. Further studies using larger cohorts of MS patients are indicated. CLINICAL TRIAL REGISTRATION ClinicalTrials.gov, Identifier: NCT02623946.
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Affiliation(s)
- F H Jacques
- Clinique Neuro-Outaouais, Gatineau, Quebec, Canada
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2
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Spitzer A, Gritsch S, Nomura M, Jucht A, Fortin J, Raviram R, Weisman HR, Gonzalez Castro LN, Druck N, Chanoch-Myers R, Lee JJY, Mylvaganam R, Lee Servis R, Fung JM, Lee CK, Nagashima H, Miller JJ, Arrillaga-Romany I, Louis DN, Wakimoto H, Pisano W, Wen PY, Mak TW, Sanson M, Touat M, Landau DA, Ligon KL, Cahill DP, Suvà ML, Tirosh I. Mutant IDH inhibitors induce lineage differentiation in IDH-mutant oligodendroglioma. Cancer Cell 2024:S1535-6108(24)00093-X. [PMID: 38579724 DOI: 10.1016/j.ccell.2024.03.008] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Revised: 01/05/2024] [Accepted: 03/13/2024] [Indexed: 04/07/2024]
Abstract
A subset of patients with IDH-mutant glioma respond to inhibitors of mutant IDH (IDHi), yet the molecular underpinnings of such responses are not understood. Here, we profiled by single-cell or single-nucleus RNA-sequencing three IDH-mutant oligodendrogliomas from patients who derived clinical benefit from IDHi. Importantly, the tissues were sampled on-drug, four weeks from treatment initiation. We further integrate our findings with analysis of single-cell and bulk transcriptomes from independent cohorts and experimental models. We find that IDHi treatment induces a robust differentiation toward the astrocytic lineage, accompanied by a depletion of stem-like cells and a reduction of cell proliferation. Furthermore, mutations in NOTCH1 are associated with decreased astrocytic differentiation and may limit the response to IDHi. Our study highlights the differentiating potential of IDHi on the cellular hierarchies that drive oligodendrogliomas and suggests a genetic modifier that may improve patient stratification.
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Affiliation(s)
- Avishay Spitzer
- Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot 761001, Israel; Department of Oncology, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel; Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Simon Gritsch
- Department of Pathology and Center for Cancer Research, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA; Broad Institute of Harvard and MIT, Cambridge, MA 02142, USA; Department of Neurology, Brigham and Women's Hospital, Boston, MA, USA
| | - Masashi Nomura
- Department of Pathology and Center for Cancer Research, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA; Broad Institute of Harvard and MIT, Cambridge, MA 02142, USA
| | - Alexander Jucht
- Department of Pathology and Center for Cancer Research, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA; Broad Institute of Harvard and MIT, Cambridge, MA 02142, USA
| | - Jerome Fortin
- Princess Margaret Cancer Centre, University Health Network, Toronto, ON M5G 2C1, Canada; Department of Neurology and Neurosurgery, Montreal Neurological Institute-Hospital, McGill University, Montreal, Canada
| | - Ramya Raviram
- New York Genome Center, New York, NY, USA; Weill Cornell Medicine, New York, NY, USA
| | - Hannah R Weisman
- Department of Pathology and Center for Cancer Research, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA; Broad Institute of Harvard and MIT, Cambridge, MA 02142, USA
| | - L Nicolas Gonzalez Castro
- Department of Pathology and Center for Cancer Research, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA; Broad Institute of Harvard and MIT, Cambridge, MA 02142, USA; Center for Neuro-Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA 02215, USA; Department of Neurology, Brigham and Women's Hospital, Boston, MA, USA
| | - Nicholas Druck
- Department of Pathology and Center for Cancer Research, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA; Broad Institute of Harvard and MIT, Cambridge, MA 02142, USA
| | - Rony Chanoch-Myers
- Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot 761001, Israel
| | - John J Y Lee
- Department of Pathology and Center for Cancer Research, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA; Broad Institute of Harvard and MIT, Cambridge, MA 02142, USA
| | - Ravindra Mylvaganam
- Department of Pathology and Center for Cancer Research, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA
| | - Rachel Lee Servis
- Department of Pathology and Center for Cancer Research, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA
| | - Jeremy Man Fung
- Department of Pathology and Center for Cancer Research, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA
| | - Christine K Lee
- Department of Neurosurgery, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA
| | - Hiroaki Nagashima
- Department of Neurosurgery, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA
| | - Julie J Miller
- Pappas Center for Neuro-Oncology, Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA
| | - Isabel Arrillaga-Romany
- Departments of Neurology and Radiation Oncology, Division of Hematology/Oncology, Massachusetts General Hospital Cancer Center, Harvard Medical School, Boston, MA 02114, USA
| | - David N Louis
- Department of Pathology and Center for Cancer Research, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA
| | - Hiroaki Wakimoto
- Department of Neurosurgery, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA
| | - Will Pisano
- Department of Pathology, Brigham and Women's Hospital, Boston, MA, USA
| | - Patrick Y Wen
- Center for Neuro-Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA 02215, USA
| | - Tak W Mak
- Princess Margaret Cancer Centre, University Health Network, Toronto, ON M5G 2C1, Canada; Centre for Oncology and Immunology, Hong Kong Science Park, Hong Kong SAR, China; Department of Pathology, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China
| | - Marc Sanson
- Sorbonne Université, Inserm, CNRS, UMR S 1127, Institut du Cerveau, ICM, AP-HP, Hôpitaux Universitaires La Pitié Salpêtrière - Charles Foix, Service de Neurologie 2-Mazarin, Paris, France
| | - Mehdi Touat
- Sorbonne Université, Inserm, CNRS, UMR S 1127, Institut du Cerveau, ICM, AP-HP, Hôpitaux Universitaires La Pitié Salpêtrière - Charles Foix, Service de Neurologie 2-Mazarin, Paris, France; Department of Neurology, Brigham and Women's Hospital, Boston, MA, USA
| | - Dan A Landau
- New York Genome Center, New York, NY, USA; Weill Cornell Medicine, New York, NY, USA
| | - Keith L Ligon
- Broad Institute of Harvard and MIT, Cambridge, MA 02142, USA; Department of Pathology, Brigham and Women's Hospital, Boston, MA, USA; Department of Pathology, Dana-Farber Cancer Institute, Boston, MA, USA.
| | - Daniel P Cahill
- Department of Neurosurgery, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA.
| | - Mario L Suvà
- Department of Pathology and Center for Cancer Research, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA; Broad Institute of Harvard and MIT, Cambridge, MA 02142, USA.
| | - Itay Tirosh
- Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot 761001, Israel.
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3
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Zheng C, Snow BE, Elia AJ, Nechanitzky R, Dominguez-Brauer C, Liu S, Tong Y, Cox MA, Focaccia E, Wakeham AC, Haight J, Tobin C, Hodgson K, Gill KT, Ma W, Berger T, Heikenwälder M, Saunders ME, Fortin J, Leung SY, Mak TW. Tumor-specific cholinergic CD4 + T lymphocytes guide immunosurveillance of hepatocellular carcinoma. Nat Cancer 2023; 4:1437-1454. [PMID: 37640929 PMCID: PMC10597839 DOI: 10.1038/s43018-023-00624-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] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Accepted: 07/26/2023] [Indexed: 08/31/2023]
Abstract
Cholinergic nerves are involved in tumor progression and dissemination. In contrast to other visceral tissues, cholinergic innervation in the hepatic parenchyma is poorly detected. It remains unclear whether there is any form of cholinergic regulation of liver cancer. Here, we show that cholinergic T cells curtail the development of liver cancer by supporting antitumor immune responses. In a mouse multihit model of hepatocellular carcinoma (HCC), we observed activation of the adaptive immune response and induction of two populations of CD4+ T cells expressing choline acetyltransferase (ChAT), including regulatory T cells and dysfunctional PD-1+ T cells. Tumor antigens drove the clonal expansion of these cholinergic T cells in HCC. Genetic ablation of Chat in T cells led to an increased prevalence of preneoplastic cells and exacerbated liver cancer due to compromised antitumor immunity. Mechanistically, the cholinergic activity intrinsic in T cells constrained Ca2+-NFAT signaling induced by T cell antigen receptor engagement. Without this cholinergic modulation, hyperactivated CD25+ T regulatory cells and dysregulated PD-1+ T cells impaired HCC immunosurveillance. Our results unveil a previously unappreciated role for cholinergic T cells in liver cancer immunobiology.
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Affiliation(s)
- Chunxing Zheng
- Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
- Centre for Oncology and Immunology, Hong Kong Science Park, Hong Kong SAR, China
| | - Bryan E Snow
- Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
| | - Andrew J Elia
- Tumor Immunotherapy Program, Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
| | - Robert Nechanitzky
- Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
| | | | - Shaofeng Liu
- Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
| | - Yin Tong
- Centre for Oncology and Immunology, Hong Kong Science Park, Hong Kong SAR, China
- Department of Pathology, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Queen Mary Hospital, Pokfulam, Hong Kong SAR, China
| | - Maureen A Cox
- Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
- Department of Microbiology and Immunology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Enrico Focaccia
- Division of Chronic Inflammation and Cancer, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Andrew C Wakeham
- Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
| | - Jillian Haight
- Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
| | - Chantal Tobin
- Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
| | - Kelsey Hodgson
- Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
| | - Kyle T Gill
- Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
| | - Wei Ma
- Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
| | - Thorsten Berger
- Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
| | - Mathias Heikenwälder
- Division of Chronic Inflammation and Cancer, German Cancer Research Center (DKFZ), Heidelberg, Germany
- The M3 Research Center, Medical Faculty Tübingen, Tübingen, Germany
| | - Mary E Saunders
- Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
| | - Jerome Fortin
- Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
| | - Suet Yi Leung
- Centre for Oncology and Immunology, Hong Kong Science Park, Hong Kong SAR, China
- Department of Pathology, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Queen Mary Hospital, Pokfulam, Hong Kong SAR, China
| | - Tak W Mak
- Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada.
- Centre for Oncology and Immunology, Hong Kong Science Park, Hong Kong SAR, China.
- Tumor Immunotherapy Program, Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada.
- Department of Pathology, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Queen Mary Hospital, Pokfulam, Hong Kong SAR, China.
- Departments of Immunology and Medical Biophysics, University of Toronto, Toronto, Ontario, Canada.
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4
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Leca J, Lemonnier F, Meydan C, Foox J, El Ghamrasni S, Mboumba DL, Duncan GS, Fortin J, Sakamoto T, Tobin C, Hodgson K, Haight J, Smith LK, Elia AJ, Butler D, Berger T, de Leval L, Mason CE, Melnick A, Gaulard P, Mak TW. IDH2 and TET2 mutations synergize to modulate T Follicular Helper cell functional interaction with the AITL microenvironment. Cancer Cell 2023; 41:323-339.e10. [PMID: 36736318 DOI: 10.1016/j.ccell.2023.01.003] [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: 02/24/2022] [Revised: 04/11/2022] [Accepted: 01/11/2023] [Indexed: 02/05/2023]
Abstract
Angioimmunoblastic T cell lymphoma (AITL) is a peripheral T cell lymphoma that originates from T follicular helper (Tfh) cells and exhibits a prominent tumor microenvironment (TME). IDH2 and TET2 mutations co-occur frequently in AITL, but their contribution to tumorigenesis is poorly understood. We developed an AITL mouse model that is driven by Idh2 and Tet2 mutations. Malignant Tfh cells display aberrant transcriptomic and epigenetic programs that impair TCR signaling. Neoplastic Tfh cells bearing combined Idh2 and Tet2 mutations show altered cross-talk with germinal center B cells that promotes B cell clonal expansion while decreasing Fas-FasL interaction and reducing B cell apoptosis. The plasma cell count and angiogenesis are also increased in the Idh2-mutated tumors, implying a major relationship between Idh2 mutation and the characteristic AITL TME. Our mouse model recapitulates several features of human IDH2-mutated AITL and provides a rationale for exploring therapeutic targeting of Tfh-TME cross-talk for AITL patients.
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Affiliation(s)
- Julie Leca
- University Health Network, Princess Margaret Cancer Centre, Toronto, ON M5G 1L7, Canada.
| | - Franҫois Lemonnier
- University Paris-Est Créteil, INSERM U955, Institut Mondor de Recherche Biomédicale, 94010 Créteil, France; AP-HP, Lymphoid Malignancies Unit, Henri Mondor Hospital, 94010 Créteil, France
| | - Cem Meydan
- Department of Physiology and Biophysics, Weill Cornell Medicine, New York, NY 10021, USA; The HRH Prince Alwaleed Bin Talal Bin Abdulaziz Alsaud Institute for Computational Biomedicine, Weill Cornell Medicine, New York, NY 10065, USA
| | - Jonathan Foox
- Department of Physiology and Biophysics, Weill Cornell Medicine, New York, NY 10021, USA; The HRH Prince Alwaleed Bin Talal Bin Abdulaziz Alsaud Institute for Computational Biomedicine, Weill Cornell Medicine, New York, NY 10065, USA
| | - Samah El Ghamrasni
- University Health Network, Princess Margaret Cancer Centre, Toronto, ON M5G 1L7, Canada
| | - Diana-Laure Mboumba
- University Paris-Est Créteil, INSERM U955, Institut Mondor de Recherche Biomédicale, 94010 Créteil, France
| | - Gordon S Duncan
- University Health Network, Princess Margaret Cancer Centre, Toronto, ON M5G 1L7, Canada
| | - Jerome Fortin
- University Health Network, Princess Margaret Cancer Centre, Toronto, ON M5G 1L7, Canada
| | - Takashi Sakamoto
- University Health Network, Princess Margaret Cancer Centre, Toronto, ON M5G 1L7, Canada; Department of Hematology and Oncology, Graduate School of Medicine, Kyoto University, Kyoto 606-8501, Japan
| | - Chantal Tobin
- University Health Network, Princess Margaret Cancer Centre, Toronto, ON M5G 1L7, Canada
| | - Kelsey Hodgson
- University Health Network, Princess Margaret Cancer Centre, Toronto, ON M5G 1L7, Canada
| | - Jillian Haight
- University Health Network, Princess Margaret Cancer Centre, Toronto, ON M5G 1L7, Canada
| | - Logan K Smith
- University Health Network, Princess Margaret Cancer Centre, Toronto, ON M5G 1L7, Canada
| | - Andrew J Elia
- University Health Network, Princess Margaret Cancer Centre, Toronto, ON M5G 1L7, Canada
| | - Daniel Butler
- Department of Physiology and Biophysics, Weill Cornell Medicine, New York, NY 10021, USA
| | - Thorsten Berger
- University Health Network, Princess Margaret Cancer Centre, Toronto, ON M5G 1L7, Canada
| | - Laurence de Leval
- Institute of Pathology, Department of Laboratory Medicine and Pathology, Lausanne University Hospital, Lausanne 1011, Switzerland; Lausanne University, Lausanne 1011, Switzerland
| | - Christopher E Mason
- Department of Physiology and Biophysics, Weill Cornell Medicine, New York, NY 10021, USA; The HRH Prince Alwaleed Bin Talal Bin Abdulaziz Alsaud Institute for Computational Biomedicine, Weill Cornell Medicine, New York, NY 10065, USA; WorldQuant Initiative for Quantitative Prediction, Weill Cornell Medicine, New York, NY 10021, USA
| | - Ari Melnick
- Department of Medicine, Division of Hematology and Medical Oncology, Weill Cornell Medicine, New York, NY 10065, USA
| | - Philippe Gaulard
- University Paris-Est Créteil, INSERM U955, Institut Mondor de Recherche Biomédicale, 94010 Créteil, France; AP-HP, Pathology Department, Henri Mondor Hosital, 94010 Créteil, France
| | - Tak W Mak
- University Health Network, Princess Margaret Cancer Centre, Toronto, ON M5G 1L7, Canada; Departments of Medical Biophysics and Immunology, University of Toronto, Toronto, ON M5G 1L7, Canada; Department of Pathology, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China; Centre for Oncology and Immunology, Hong Kong Science Park, Hong Kong SAR, China.
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5
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Fortin J, Chiang MF, Meydan C, Foox J, Ramachandran P, Leca J, Lemonnier F, Li WY, Gams MS, Sakamoto T, Chu M, Tobin C, Laugesen E, Robinson TM, You-Ten A, Butler DJ, Berger T, Minden MD, Levine RL, Guidos CJ, Melnick AM, Mason CE, Mak TW. Distinct and opposite effects of leukemogenic Idh and Tet2 mutations in hematopoietic stem and progenitor cells. Proc Natl Acad Sci U S A 2023; 120:e2208176120. [PMID: 36652477 PMCID: PMC9942850 DOI: 10.1073/pnas.2208176120] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
Mutations in IDH1, IDH2, and TET2 are recurrently observed in myeloid neoplasms. IDH1 and IDH2 encode isocitrate dehydrogenase isoforms, which normally catalyze the conversion of isocitrate to α-ketoglutarate (α-KG). Oncogenic IDH1/2 mutations confer neomorphic activity, leading to the production of D-2-hydroxyglutarate (D-2-HG), a potent inhibitor of α-KG-dependent enzymes which include the TET methylcytosine dioxygenases. Given their mutual exclusivity in myeloid neoplasms, IDH1, IDH2, and TET2 mutations may converge on a common oncogenic mechanism. Contrary to this expectation, we observed that they have distinct, and even opposite, effects on hematopoietic stem and progenitor cells in genetically engineered mice. Epigenetic and single-cell transcriptomic analyses revealed that Idh2R172K and Tet2 loss-of-function have divergent consequences on the expression and activity of key hematopoietic and leukemogenic regulators. Notably, chromatin accessibility and transcriptional deregulation in Idh2R172K cells were partially disconnected from DNA methylation alterations. These results highlight unanticipated divergent effects of IDH1/2 and TET2 mutations, providing support for the optimization of genotype-specific therapies.
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Affiliation(s)
- Jerome Fortin
- aPrincess Margaret Cancer Centre, University Health Network, Toronto, ONM5G 2C1, Canada
- 2To whom correspondence may be addressed. , , or
| | - Ming-Feng Chiang
- aPrincess Margaret Cancer Centre, University Health Network, Toronto, ONM5G 2C1, Canada
| | - Cem Meydan
- bDepartment of Physiology and Biophysics, Weill Cornell Medicine, New York, NY10065
- cThe HRH Prince Alwaleed Bin Talal Bin Abdulaziz Al-Saud Institute for Computational Biomedicine, Weill Cornell Medicine, New York, NY10065
- dWorldQuant Initiative for Quantitative Prediction, Weill Cornell Medicine, New York, NY10065
| | - Jonathan Foox
- bDepartment of Physiology and Biophysics, Weill Cornell Medicine, New York, NY10065
- cThe HRH Prince Alwaleed Bin Talal Bin Abdulaziz Al-Saud Institute for Computational Biomedicine, Weill Cornell Medicine, New York, NY10065
| | | | - Julie Leca
- aPrincess Margaret Cancer Centre, University Health Network, Toronto, ONM5G 2C1, Canada
| | - François Lemonnier
- aPrincess Margaret Cancer Centre, University Health Network, Toronto, ONM5G 2C1, Canada
- eInstitut Mondor de Recherche Biomédicale, INSERMU955, Université Paris Est Créteil, Créteil94010, France
| | - Wanda Y. Li
- aPrincess Margaret Cancer Centre, University Health Network, Toronto, ONM5G 2C1, Canada
- fCentre for Oncology and Immunology, Hong Kong Science Park, Hong Kong SAR, China
| | - Miki S. Gams
- gDepartment of Immunology, The Hospital for Sick Children Research Institute, University of Toronto, Toronto, ONM5G 0A4, Canada
| | - Takashi Sakamoto
- aPrincess Margaret Cancer Centre, University Health Network, Toronto, ONM5G 2C1, Canada
- hDepartment of Hematology and Oncology, Graduate School of Medicine, Kyoto University, Kyoto606-8501, Japan
| | - Mandy Chu
- aPrincess Margaret Cancer Centre, University Health Network, Toronto, ONM5G 2C1, Canada
| | - Chantal Tobin
- aPrincess Margaret Cancer Centre, University Health Network, Toronto, ONM5G 2C1, Canada
| | - Eric Laugesen
- aPrincess Margaret Cancer Centre, University Health Network, Toronto, ONM5G 2C1, Canada
| | - Troy M. Robinson
- iHuman Oncology and Pathogenesis Program, Memorial Sloan Kettering Cancer Center, New York, NY10065
- jLouis V. Gerstner, Jr. Graduate School of Biomedical Sciences, Memorial Sloan Kettering Cancer Center, New York, NY10065
| | - Annick You-Ten
- aPrincess Margaret Cancer Centre, University Health Network, Toronto, ONM5G 2C1, Canada
| | - Daniel J. Butler
- bDepartment of Physiology and Biophysics, Weill Cornell Medicine, New York, NY10065
| | - Thorsten Berger
- aPrincess Margaret Cancer Centre, University Health Network, Toronto, ONM5G 2C1, Canada
| | - Mark D. Minden
- aPrincess Margaret Cancer Centre, University Health Network, Toronto, ONM5G 2C1, Canada
| | - Ross L. Levine
- iHuman Oncology and Pathogenesis Program, Memorial Sloan Kettering Cancer Center, New York, NY10065
- kCenter for Epigenetics Research, Memorial Sloan Kettering Cancer Center, New York, NY10065
- lCenter for Hematologic Malignancies, Memorial Sloan Kettering Cancer Center, New York, NY10065
| | - Cynthia J. Guidos
- gDepartment of Immunology, The Hospital for Sick Children Research Institute, University of Toronto, Toronto, ONM5G 0A4, Canada
| | - Ari M. Melnick
- mDepartment of Medicine, Division of Hematology and Medical Oncology, Weill Cornell Medicine, New York, NY10021
| | - Christopher E. Mason
- bDepartment of Physiology and Biophysics, Weill Cornell Medicine, New York, NY10065
- cThe HRH Prince Alwaleed Bin Talal Bin Abdulaziz Al-Saud Institute for Computational Biomedicine, Weill Cornell Medicine, New York, NY10065
- dWorldQuant Initiative for Quantitative Prediction, Weill Cornell Medicine, New York, NY10065
| | - Tak W. Mak
- aPrincess Margaret Cancer Centre, University Health Network, Toronto, ONM5G 2C1, Canada
- fCentre for Oncology and Immunology, Hong Kong Science Park, Hong Kong SAR, China
- nDepartment of Pathology, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China
- 2To whom correspondence may be addressed. , , or
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6
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Yanchus C, Drucker KL, Kollmeyer TM, Tsai R, Winick-Ng W, Liang M, Malik A, Pawling J, De Lorenzo SB, Ali A, Decker PA, Kosel ML, Panda A, Al-Zahrani KN, Jiang L, Browning JWL, Lowden C, Geuenich M, Hernandez JJ, Gosio JT, Ahmed M, Loganathan SK, Berman J, Trcka D, Michealraj KA, Fortin J, Carson B, Hollingsworth EW, Jacinto S, Mazrooei P, Zhou L, Elia A, Lupien M, He HH, Murphy DJ, Wang L, Abyzov A, Dennis JW, Maass PG, Campbell K, Wilson MD, Lachance DH, Wrensch M, Wiencke J, Mak T, Pennacchio LA, Dickel DE, Visel A, Wrana J, Taylor MD, Zadeh G, Dirks P, Eckel-Passow JE, Attisano L, Pombo A, Ida CM, Kvon EZ, Jenkins RB, Schramek D. A noncoding single-nucleotide polymorphism at 8q24 drives IDH1-mutant glioma formation. Science 2022; 378:68-78. [PMID: 36201590 PMCID: PMC9926876 DOI: 10.1126/science.abj2890] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Establishing causal links between inherited polymorphisms and cancer risk is challenging. Here, we focus on the single-nucleotide polymorphism rs55705857, which confers a sixfold greater risk of isocitrate dehydrogenase (IDH)-mutant low-grade glioma (LGG). We reveal that rs55705857 itself is the causal variant and is associated with molecular pathways that drive LGG. Mechanistically, we show that rs55705857 resides within a brain-specific enhancer, where the risk allele disrupts OCT2/4 binding, allowing increased interaction with the Myc promoter and increased Myc expression. Mutating the orthologous mouse rs55705857 locus accelerated tumor development in an Idh1R132H-driven LGG mouse model from 472 to 172 days and increased penetrance from 30% to 75%. Our work reveals mechanisms of the heritable predisposition to lethal glioma in ~40% of LGG patients.
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Affiliation(s)
- Connor Yanchus
- Centre for Molecular and Systems Biology, Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, ON M5G 1X5, Canada
- Department of Molecular Genetics, University of Toronto, Toronto, ON M5S 1A8, Canada
| | - Kristen L. Drucker
- Division of Experimental Pathology, Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN 55905, USA
| | - Thomas M. Kollmeyer
- Division of Experimental Pathology, Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN 55905, USA
| | - Ricky Tsai
- Centre for Molecular and Systems Biology, Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, ON M5G 1X5, Canada
| | - Warren Winick-Ng
- Max-Delbrück Centre for Molecular Medicine, Berlin Institute for Medical Systems Biology, Epigenetic Regulation and Chromatin Architecture Group, 13092 Berlin, Germany
| | - Minggao Liang
- Department of Molecular Genetics, University of Toronto, Toronto, ON M5S 1A8, Canada
- Hospital for Sick Children, Toronto, ON M5G 1X8, Canada
| | - Ahmad Malik
- Centre for Molecular and Systems Biology, Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, ON M5G 1X5, Canada
- Department of Molecular Genetics, University of Toronto, Toronto, ON M5S 1A8, Canada
| | - Judy Pawling
- Centre for Molecular and Systems Biology, Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, ON M5G 1X5, Canada
| | - Silvana B. De Lorenzo
- Division of Experimental Pathology, Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN 55905, USA
| | - Asma Ali
- Division of Experimental Pathology, Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN 55905, USA
| | - Paul A. Decker
- Department of Quantitative Health Sciences, Mayo Clinic, Rochester, MN 55905, USA
| | - Matt L. Kosel
- Department of Quantitative Health Sciences, Mayo Clinic, Rochester, MN 55905, USA
| | - Arijit Panda
- Department of Quantitative Health Sciences, Mayo Clinic, Rochester, MN 55905, USA
| | - Khalid N. Al-Zahrani
- Centre for Molecular and Systems Biology, Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, ON M5G 1X5, Canada
| | - Lingyan Jiang
- Centre for Molecular and Systems Biology, Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, ON M5G 1X5, Canada
| | - Jared W. L. Browning
- Department of Molecular Genetics, University of Toronto, Toronto, ON M5S 1A8, Canada
- Hospital for Sick Children, Toronto, ON M5G 1X8, Canada
| | - Chris Lowden
- Centre for Molecular and Systems Biology, Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, ON M5G 1X5, Canada
| | - Michael Geuenich
- Centre for Molecular and Systems Biology, Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, ON M5G 1X5, Canada
- Department of Molecular Genetics, University of Toronto, Toronto, ON M5S 1A8, Canada
| | - J. Javier Hernandez
- Centre for Molecular and Systems Biology, Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, ON M5G 1X5, Canada
- Department of Molecular Genetics, University of Toronto, Toronto, ON M5S 1A8, Canada
| | - Jessica T. Gosio
- Centre for Molecular and Systems Biology, Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, ON M5G 1X5, Canada
- Department of Molecular Genetics, University of Toronto, Toronto, ON M5S 1A8, Canada
| | | | - Sampath Kumar Loganathan
- Centre for Molecular and Systems Biology, Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, ON M5G 1X5, Canada
| | - Jacob Berman
- Centre for Molecular and Systems Biology, Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, ON M5G 1X5, Canada
| | - Daniel Trcka
- Centre for Molecular and Systems Biology, Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, ON M5G 1X5, Canada
| | | | - Jerome Fortin
- Princess Margaret Cancer Centre, University Health Network, Toronto, ON M5G 2C1, Canada
| | - Brittany Carson
- Centre for Molecular and Systems Biology, Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, ON M5G 1X5, Canada
| | - Ethan W. Hollingsworth
- Department of Developmental and Cell Biology, University of California, Irvine, CA 92617, USA
| | - Sandra Jacinto
- Department of Developmental and Cell Biology, University of California, Irvine, CA 92617, USA
| | - Parisa Mazrooei
- Princess Margaret Cancer Centre, University Health Network, Toronto, ON M5G 2C1, Canada
- Department of Medical Biophysics, University of Toronto, Toronto, ON M5G 1L7, Canada
| | - Lily Zhou
- Princess Margaret Cancer Centre, University Health Network, Toronto, ON M5G 2C1, Canada
| | - Andrew Elia
- Princess Margaret Cancer Centre, University Health Network, Toronto, ON M5G 2C1, Canada
| | - Mathieu Lupien
- Princess Margaret Cancer Centre, University Health Network, Toronto, ON M5G 2C1, Canada
- Department of Medical Biophysics, University of Toronto, Toronto, ON M5G 1L7, Canada
- Ontario Institute for Cancer Research, Toronto, ON M5G 0A3, Canada
| | - Housheng Hansen He
- Princess Margaret Cancer Centre, University Health Network, Toronto, ON M5G 2C1, Canada
- Department of Medical Biophysics, University of Toronto, Toronto, ON M5G 1L7, Canada
| | - Daniel J. Murphy
- Institute of Cancer Sciences, University of Glasgow, Glasgow G61 1BD, Scotland, UK
- Cancer Research UK Beatson Institute, Glasgow G61 1BD, Scotland, UK
| | - Liguo Wang
- Department of Quantitative Health Sciences, Mayo Clinic, Rochester, MN 55905, USA
| | - Alexej Abyzov
- Department of Quantitative Health Sciences, Mayo Clinic, Rochester, MN 55905, USA
| | - James W. Dennis
- Centre for Molecular and Systems Biology, Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, ON M5G 1X5, Canada
| | - Philipp G. Maass
- Department of Molecular Genetics, University of Toronto, Toronto, ON M5S 1A8, Canada
- Hospital for Sick Children, Toronto, ON M5G 1X8, Canada
| | - Kieran Campbell
- Centre for Molecular and Systems Biology, Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, ON M5G 1X5, Canada
- Department of Molecular Genetics, University of Toronto, Toronto, ON M5S 1A8, Canada
| | - Michael D. Wilson
- Department of Molecular Genetics, University of Toronto, Toronto, ON M5S 1A8, Canada
- Hospital for Sick Children, Toronto, ON M5G 1X8, Canada
| | - Daniel H. Lachance
- Departments of Neurology and Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN 55905, USA
| | - Margaret Wrensch
- Department of Neurological Surgery, University of California, San Francisco, CA 94143, USA
| | - John Wiencke
- Department of Neurological Surgery, University of California, San Francisco, CA 94143, USA
| | - Tak Mak
- Princess Margaret Cancer Centre, University Health Network, Toronto, ON M5G 2C1, Canada
- Department of Medical Biophysics, University of Toronto, Toronto, ON M5G 1L7, Canada
| | - Len A. Pennacchio
- Environmental Genomics and Systems Biology Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94710, USA
- Comparative Biochemistry Program, University of California, Berkeley, CA 94720, USA
- US Department of Energy Joint Genome Institute, Berkeley, CA 94720, USA
| | - Diane E. Dickel
- Environmental Genomics and Systems Biology Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94710, USA
| | - Axel Visel
- Environmental Genomics and Systems Biology Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94710, USA
- US Department of Energy Joint Genome Institute, Berkeley, CA 94720, USA
- School of Natural Sciences, University of California, Merced, CA 95343, USA
| | - Jeffrey Wrana
- Centre for Molecular and Systems Biology, Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, ON M5G 1X5, Canada
- Department of Molecular Genetics, University of Toronto, Toronto, ON M5S 1A8, Canada
| | - Michael D. Taylor
- Hospital for Sick Children, Toronto, ON M5G 1X8, Canada
- Department of Medical Biophysics, University of Toronto, Toronto, ON M5G 1L7, Canada
| | - Gelareh Zadeh
- Hospital for Sick Children, Toronto, ON M5G 1X8, Canada
| | - Peter Dirks
- Department of Molecular Genetics, University of Toronto, Toronto, ON M5S 1A8, Canada
- Hospital for Sick Children, Toronto, ON M5G 1X8, Canada
| | | | - Liliana Attisano
- Department of Biochemistry, University of Toronto, Toronto, ON M5S 1A8, Canada
- Donnelly Centre, University of Toronto, Toronto, ON M5S 3E1, Canada
| | - Ana Pombo
- Max-Delbrück Centre for Molecular Medicine, Berlin Institute for Medical Systems Biology, Epigenetic Regulation and Chromatin Architecture Group, 13092 Berlin, Germany
- Institute of Biology, Humboldt University of Berlin, 10115 Berlin, Germany
| | - Cristiane M. Ida
- Division of Experimental Pathology, Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN 55905, USA
| | - Evgeny Z. Kvon
- Department of Developmental and Cell Biology, University of California, Irvine, CA 92617, USA
| | - Robert B. Jenkins
- Division of Experimental Pathology, Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN 55905, USA
| | - Daniel Schramek
- Centre for Molecular and Systems Biology, Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, ON M5G 1X5, Canada
- Department of Molecular Genetics, University of Toronto, Toronto, ON M5S 1A8, Canada
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7
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Fisette-Paulhus I, Morin M, Fortin J, Girard-Côté L, Gagnon C. Introducing a Guide in Physical Therapy Addressing Sexual Function in Adults with Neuromuscular Disorders. J Sex Med 2022. [DOI: 10.1016/j.jsxm.2022.05.109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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8
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Yanchus C, Drucker K, Kollmeyer T, Tsai R, Jiang L, Ali A, Carson B, Pawling J, Malik A, Al-Zahrani K, Loganathan SK, Fortin J, Zhou L, Elia A, Dennis JW, Mak T, Taylor M, Zadeh G, Dirks P, Jenkins R, Schramek D. TMOD-18. DIRECT IN VIVO CRISPR SCREEN IDENTIFIES COOPERATING TUMOR SUPPRESSORS THAT DRIVE PROGRESSION OF IDH1-MUTANT LOW-GRADE GLIOMA TO AGGRESSIVE GLIOBLASTOMA. Neuro Oncol 2021. [DOI: 10.1093/neuonc/noab196.879] [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: 11/14/2022] Open
Abstract
Abstract
Low-grade glioma (LGG) are generally slowly growing brain cancers, that frequently undergo malignant progression to aggressive, secondary glioblastoma with a dismal prognosis. By combining genetically engineered Idh1-mutant mice with in vivo CRISPR gene editing we generated a mouse model faithfully recapitulating the founder mutations of LGG. Clonal activation of the neomorphic Idh1 R132H mutation cooperates with Trp53 and Atrx mutations to trigger development of brain tumors but only with ~30% penetrance and very long latency. To elucidate the molecular mechanisms underlying the malignant progression of IDH1-mutant LGG, we devised and deployed a direct in vivo CRISPR screen targeting genes commonly mutated in human IDH-mutant secondary glioblastoma. Stereotaxic delivery of a lentiviral sgRNA library targeting the mouse orthologs of these genes into the brain of Idh1 R132H ;Trp53;Atrx;Cas9 and control Idh1 wt ;Trp53;Atrx;Cas9 compound mutant mice resulted in rapid formation of tumors that recapitulate human Idh1-mutant glioblastoma. Deconvoluting the screen showed that PI3K pathway members Pten and Pik3ca as well as Notch1, Smarca4 and Fat1 are preferentially enriched in Idh1 R132H-tumors, while Rb1 and NF2 were enriched in Idh1 wt tumors. Co-mutation analysis further identified additional co-occurring driver combinations such as Bcor-Met, Olig2-Met, Olig2-Med12 or Bcor-Olig2. We validated the tumor suppressive function of Notch1 and Pten using conventional floxed knock-out alleles and found that Notch1 functions in a haploinsufficient manner. Interestingly, Idh1 R132H did not alter tumor latency or pathology in a high grade p53;Pten;Rb1 mutant background, indicating that the neomorphic IDH-mutations can drive low but not high grade glioma development. Our study provides a functional landscape of gliomagenesis suppressors in vivo.
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Affiliation(s)
| | | | | | - Ricky Tsai
- Lunenfeld-Tanenbaum Research Institute, Toronto, ON, Canada
| | - Lingyan Jiang
- Lunenfeld-Tanenbaum Research Institute, Toronto, ON, Canada
| | | | | | - Judy Pawling
- Lunenfeld-Tanenbaum Research Institute, Toronto, ON, Canada
| | | | | | | | - Jerome Fortin
- Princess Margaret Cancer Centre, Toronto, ON, Canada
| | - Lily Zhou
- Princess Margaret Cancer Centre, Toronto, ON, Canada
| | - Andrew Elia
- Princess Margaret Cancer Centre, Toronto, ON, Canada
| | - James W Dennis
- Lunenfeld-Tanenbaum Research Institute, Toronto, ON, Canada
| | - Tak Mak
- Princess Margaret Cancer Centre, Toronto, ON, Canada
| | | | | | - Peter Dirks
- The Hospital for Sick Children, Toronto, ON, Canada
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9
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Fortin J, Grondin S, Blanchet S. Level of processing's effect on episodic retrieval following traumatic brain injury in the elderly: An event-related potential study. Brain Cogn 2021; 154:105805. [PMID: 34638050 DOI: 10.1016/j.bandc.2021.105805] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2021] [Revised: 09/21/2021] [Accepted: 09/26/2021] [Indexed: 11/18/2022]
Abstract
Individuals who have sustained a traumatic brain injury (TBI) can suffer from episodic memory impairments. Until now, the neural correlates underlying episodic retrieval in individuals with TBI remained scarce, particularly in older adults. We aimed to fill this gap by recording event-related potentials during an old/new episodic recognition task in 26 older adults, 13 healthy and 13 with TBI. The task manipulated the level of processing in encoding with the use of semantic organizational strategies (deep guided, deep self-guided, and shallow encoding). For all encoding conditions, behavioral data analyses on the discrimination rate indicated that older adults with TBI were globally impaired compared with healthy older adults. The electrophysiological results indicated that the left-parietal effect was larger in the deep guided condition than in the shallow condition. In addition, the results show that the mid-frontal and left-parietal positive old/new effects were absent in both groups. The main findings are the observation, in the control group only, of an early frontal old/new effect (P200; 150-300 ms) and of a late frontal old/new effect on the left hemisphere, only in the Spontaneous condition. Together, results suggest an impairment of the allocation of attentional resources and working memory necessary for retrieving and monitoring items in the elderly with TBI.
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Affiliation(s)
- J Fortin
- École de psychologie, Université Laval, Quebec city, Quebec, Canada; Centre for Interdisciplinary Research in Rehabilitation and Social Integration, CIRRIS, Quebec City (QC), Canada.
| | - S Grondin
- École de psychologie, Université Laval, Quebec city, Quebec, Canada; Centre for Interdisciplinary Research in Rehabilitation and Social Integration, CIRRIS, Quebec City (QC), Canada.
| | - S Blanchet
- École de psychologie, Université Laval, Quebec city, Quebec, Canada; Laboratoire Mémoire, Cerveau et Cognition (LMC(2)), Institut de Psychologie, Université de Paris, Paris, France.
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10
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Fortin J, Bassi C, Ramachandran P, Li WY, Tian R, Zarrabi I, Hill G, Snow BE, Haight J, Tobin C, Hodgson K, Wakeham A, Stambolic V, Mak TW. Concerted roles of PTEN and ATM in controlling hematopoietic stem cell fitness and dormancy. J Clin Invest 2021; 131:131698. [PMID: 33444287 DOI: 10.1172/jci131698] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2019] [Accepted: 01/13/2021] [Indexed: 12/21/2022] Open
Abstract
In order to sustain proficient life-long hematopoiesis, hematopoietic stem cells (HSCs) must possess robust mechanisms to preserve their quiescence and genome integrity. DNA-damaging stress can perturb HSC homeostasis by affecting their survival, self-renewal, and differentiation. Ablation of the kinase ataxia telangiectasia mutated (ATM), a master regulator of the DNA damage response, impairs HSC fitness. Paradoxically, we show here that loss of a single allele of Atm enhances HSC functionality in mice. To explain this observation, we explored a possible link between ATM and the tumor suppressor phosphatase and tensin homolog (PTEN), which also regulates HSC function. We generated and analyzed a knockin mouse line (PtenS398A/S398A), in which PTEN cannot be phosphorylated by ATM. Similar to Atm+/-, PtenS398A/S398A HSCs have enhanced hematopoietic reconstitution ability, accompanied by resistance to apoptosis induced by genotoxic stress. Single-cell transcriptomic analyses and functional assays revealed that dormant PtenS398A/S398A HSCs aberrantly tolerate elevated mitochondrial activity and the accumulation of reactive oxygen species, which are normally associated with HSC priming for self-renewal or differentiation. Our results unveil a molecular connection between ATM and PTEN, which couples the response to genotoxic stress and dormancy in HSCs.
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Affiliation(s)
- Jerome Fortin
- Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
| | - Christian Bassi
- Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
| | | | - Wanda Y Li
- Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
| | - Ruxiao Tian
- Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
| | - Ida Zarrabi
- Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
| | - Graham Hill
- Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
| | - Bryan E Snow
- Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
| | - Jillian Haight
- Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
| | - Chantal Tobin
- Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
| | - Kelsey Hodgson
- Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
| | - Andrew Wakeham
- Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
| | - Vuk Stambolic
- Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada.,Department of Medical Biophysics, University of Toronto, Toronto, Ontario, Canada
| | - Tak W Mak
- Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
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11
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Gagnon C, Fortin J, Lamontagne ME, Plourde A. The Rare Knowledge Mining Methodological Framework for the Development of Practice Guidelines and Knowledge Translation Tools for Rare Diseases. J Neuromuscul Dis 2021; 8:1017-1029. [PMID: 34250944 DOI: 10.3233/jnd-200536] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Rare diseases bring on a heavy health, social and economic burden that impacts patients' lives and puts pressure on the healthcare system. Furthermore, they are often associated with limited published studies to inform multidisciplinary clinical practice thus limiting evidence-based practice. Moreover, the development of knowledge translation products including clinical care guidelines are often very challenging based on the current available methodological frameworks relying mostly on critical appraisal of the published research evidence where randomized clinical trial design is considered as the gold standard. To overcome this barrier, we proposed the Rare Knowledge Mining Methological Framework (RKMMF). The RKMMF is one possible answer to improve the development of knowledge translation products for rare diseases. This framework includes other sources of evidence including registry information and qualitative studies and the involvement of expert patients. This article documents the RKMMF structure and its application is exemplified through knowledge translation products developed for a neuromuscular population.
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Affiliation(s)
- C Gagnon
- Groupe de Recherche Interdisciplinaire sur les Maladies Neuromusculaires (GRIMN), Centre Intégré Universitaire de Santé et de Services Sociaux du Saguenay-Lac-Saint-Jean, Saguenay, Québec, Canada.,Centre de recherche Charles-Le Moyne-Saguenay-Lac-Saint-Jean sur les innovations en santé, Faculté de Médecine et des Sciences de la Santé, Université de Sherbrooke, Sherbrooke, Québec, Canada
| | - J Fortin
- Groupe de Recherche Interdisciplinaire sur les Maladies Neuromusculaires (GRIMN), Centre Intégré Universitaire de Santé et de Services Sociaux du Saguenay-Lac-Saint-Jean, Saguenay, Québec, Canada
| | - M E Lamontagne
- Center for Interdisciplinary Research in Rehabilitation and Social Integration, Institut de réadaptation en déficience physique de Québec, boul. Wilfrid-Hamel, Québec, QC, Canada.,Département de réadaptation, Faculté de Médecine, Université Laval, Québec, QC, Canada
| | - A Plourde
- Groupe de Recherche Interdisciplinaire sur les Maladies Neuromusculaires (GRIMN), Centre Intégré Universitaire de Santé et de Services Sociaux du Saguenay-Lac-Saint-Jean, Saguenay, Québec, Canada
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12
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Leca J, Fortin J, Mak TW. Illuminating the cross-talk between tumor metabolism and immunity in IDH-mutated cancers. Curr Opin Biotechnol 2020; 68:181-185. [PMID: 33360716 DOI: 10.1016/j.copbio.2020.11.013] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Revised: 11/16/2020] [Accepted: 11/30/2020] [Indexed: 02/02/2023]
Abstract
Mutations in the genes encoding isocitrate dehydrogenase 1 (IDH1) and 2 (IDH2) are key drivers of diverse cancers, including gliomas and hematological malignancies. IDH mutations cause neomorphic enzymatic activity that results in the production of the oncometabolite 2-hydroxyglutarate (2-HG). In addition to 2-HG's well-known effects on tumor cells themselves, it has become increasingly clear that 2-HG directly influences the tumor microenvironment (TME). In particular, the non-cell-autonomous impact of 2-HG on the immune system likely plays a major role in shaping disease development and response to therapy. It is therefore critical to understand how IDH mutations affect the metabolism, epigenetics, and functions of tumor-infiltrating immune cells. Such knowledge may point towards new therapeutic approaches to treat IDH-mutant cancers.
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Affiliation(s)
- Julie Leca
- Princess Margaret Cancer Centre, University Health Network, Toronto, ON, Canada
| | - Jerome Fortin
- Princess Margaret Cancer Centre, University Health Network, Toronto, ON, Canada
| | - Tak W Mak
- Princess Margaret Cancer Centre, University Health Network, Toronto, ON, Canada; Departments of Medical Biophysics and Immunology, University of Toronto, Toronto, ON, Canada; Department of Pathology, University of Hong Kong, Hong Kong, Hong Kong.
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13
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Wu A, Mak T, Fortin J. DIPG-41. DISSECTING THE MECHANISTIC BASIS FOR ACVR1 AND PIK3CA MUTATION CO-OCCURRENCE IN DIFFUSE MIDLINE GLIOMAS USING GENETICALLY ENGINEERED MOUSE MODELS. Neuro Oncol 2020. [PMCID: PMC7715261 DOI: 10.1093/neuonc/noaa222.088] [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] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Diffuse midline gliomas (DMGs) are aggressive childhood brain tumors with a dismal prognosis. Most of these tumors carry K27M mutations in histone H3-encoding genes, particularly H3F3A and HIST1H3B. In addition, activating mutations in ACVR1 and PIK3CA co-occur in a subset of DMGs. To understand how these lesions drive the development of DMGs, we generated genetically engineered mouse models in which Acvr1G328V, Hist1h3bK27M, and Pik3caH1047R are targeted to the OLIG2-expressing cell lineage. Animals carrying Acvr1G328V and Pik3caH1047R, with (“AHPO”) or without (“APO”) Hist1h3bK27M, developed high-grade diffuse gliomas involving midline and forebrain regions. Neither Acvr1G328V nor Pik3caH1047R drove tumorigenesis by themselves, but Acvr1G328V was sufficient to cause oligodendroglial differentiation arrest, pointing to a role in the earliest stages of gliomas formation. Transcriptomic analyses of AHPO and APO tumors indicated a predominantly proneural and oligodendrocyte precursor-like gene expression signature, consistent with the corresponding human pathology. Genes encoding transcription factors (TFs) with dual roles in controlling glial and neuronal differentiation were upregulated in tumors. Some of these genes were mildly induced by Acvr1G328V alone. Functional experiments using CRISPR/Cas9-mediated gene editing in patient-derived cell lines confirmed a role for some of these TFs in controlling DMG cell fitness. Overall, our results suggest that Pik3caH1047R consolidates Acvr1G328V-induced glial differentiation arrest to drive DMG development and progression.
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Affiliation(s)
- Annette Wu
- Princess Margaret Cancer Centre, University Health Network, Toronto, ON, Canada
| | - Tak Mak
- Princess Margaret Cancer Centre, University Health Network, Toronto, ON, Canada
| | - Jerome Fortin
- Princess Margaret Cancer Centre, University Health Network, Toronto, ON, Canada
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14
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Vittecoq B, Fortin J, Maury J, Violette S. Earthquakes and extreme rainfall induce long term permeability enhancement of volcanic island hydrogeological systems. Sci Rep 2020; 10:20231. [PMID: 33214641 PMCID: PMC7677319 DOI: 10.1038/s41598-020-76954-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Accepted: 11/04/2020] [Indexed: 11/09/2022] Open
Abstract
Earthquakes affect near-surface permeability, however temporal permeability evolution quantification is challenging due to the scarcity of observations data. Using thirteen years of groundwater level observations, we highlight clear permeability variations induced by earthquakes in an aquifer and overlaying aquitard. Dynamic stresses, above a threshold value PGV > 0.5 cm s−1, were mostly responsible for these variations. We develop a new model using earth tides responses of water levels between earthquakes. We demonstrate a clear permeability increase of the hydrogeological system, with the permeability of the aquifer increasing 20-fold and that of the aquitard 300-fold over 12 years, induced by fracture creation or fracture unclogging. In addition, we demonstrate unprecedented observations of increase in permeability due to the effect of extreme tropical deluges of rainfall and hurricanes. The water pressure increase induced by the exceptional rainfall events thus act as piston strokes strong enough to unclog congested fractures by colloids, particles or precipitates. Lastly, an analysis of regional permeabilities also highlights a permeability increase over geological timeframes (× 40 per million years), corroborating the trend observed over the last decade. This demonstrates that permeability of aquifers of andesitic volcanic islands, such as the Lesser Antilles, significantly evolve with time due to seismic activity and extreme rainfall.
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Affiliation(s)
- B Vittecoq
- BRGM, 97200, Fort-de-France, Martinique. .,CNRS, UMR.8538 - Laboratoire de Géologie, ENS-PSL Research University, 24 rue Lhomond, 75231, Paris, France.
| | - J Fortin
- CNRS, UMR.8538 - Laboratoire de Géologie, ENS-PSL Research University, 24 rue Lhomond, 75231, Paris, France
| | - J Maury
- BRGM, 45060, Orléans, France
| | - S Violette
- CNRS, UMR.8538 - Laboratoire de Géologie, ENS-PSL Research University, 24 rue Lhomond, 75231, Paris, France.,Sorbonne University, UFR.918, 75005, Paris, France
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15
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Fortin J, Tian R, Zarrabi I, Hill G, Williams E, Sanchez-Duffhues G, Thorikay M, Ramachandran P, Siddaway R, Wong JF, Wu A, Apuzzo LN, Haight J, You-Ten A, Snow BE, Wakeham A, Goldhamer DJ, Schramek D, Bullock AN, Dijke PT, Hawkins C, Mak TW. Mutant ACVR1 Arrests Glial Cell Differentiation to Drive Tumorigenesis in Pediatric Gliomas. Cancer Cell 2020; 37:308-323.e12. [PMID: 32142668 PMCID: PMC7105820 DOI: 10.1016/j.ccell.2020.02.002] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/10/2019] [Revised: 12/02/2019] [Accepted: 02/04/2020] [Indexed: 12/30/2022]
Abstract
Diffuse intrinsic pontine gliomas (DIPGs) are aggressive pediatric brain tumors for which there is currently no effective treatment. Some of these tumors combine gain-of-function mutations in ACVR1, PIK3CA, and histone H3-encoding genes. The oncogenic mechanisms of action of ACVR1 mutations are currently unknown. Using mouse models, we demonstrate that Acvr1G328V arrests the differentiation of oligodendroglial lineage cells, and cooperates with Hist1h3bK27M and Pik3caH1047R to generate high-grade diffuse gliomas. Mechanistically, Acvr1G328V upregulates transcription factors which control differentiation and DIPG cell fitness. Furthermore, we characterize E6201 as a dual inhibitor of ACVR1 and MEK1/2, and demonstrate its efficacy toward tumor cells in vivo. Collectively, our results describe an oncogenic mechanism of action for ACVR1 mutations, and suggest therapeutic strategies for DIPGs.
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MESH Headings
- Activin Receptors, Type I/antagonists & inhibitors
- Activin Receptors, Type I/chemistry
- Activin Receptors, Type I/genetics
- Activin Receptors, Type I/metabolism
- Animals
- Basic Helix-Loop-Helix Transcription Factors/genetics
- Basic Helix-Loop-Helix Transcription Factors/metabolism
- Bone Morphogenetic Proteins/genetics
- Bone Morphogenetic Proteins/metabolism
- Brain Neoplasms/drug therapy
- Brain Neoplasms/genetics
- Brain Neoplasms/pathology
- Cell Differentiation/genetics
- Cell Line, Tumor
- Class I Phosphatidylinositol 3-Kinases/genetics
- Class I Phosphatidylinositol 3-Kinases/metabolism
- Female
- Glioma/drug therapy
- Glioma/genetics
- Glioma/pathology
- Histones/genetics
- Histones/metabolism
- Humans
- Lactones/pharmacology
- Male
- Mice, Transgenic
- Mutation
- Neoplasms, Experimental/genetics
- Neoplasms, Experimental/pathology
- Neuroglia/metabolism
- Neuroglia/pathology
- Oligodendroglia/pathology
- Receptor, Platelet-Derived Growth Factor alpha/genetics
- Receptor, Platelet-Derived Growth Factor alpha/metabolism
- SOXC Transcription Factors/genetics
- SOXC Transcription Factors/metabolism
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Affiliation(s)
- Jerome Fortin
- Princess Margaret Cancer Centre, University Health Network, Toronto, ON M5G 1L7, Canada.
| | - Ruxiao Tian
- Princess Margaret Cancer Centre, University Health Network, Toronto, ON M5G 1L7, Canada
| | - Ida Zarrabi
- Princess Margaret Cancer Centre, University Health Network, Toronto, ON M5G 1L7, Canada
| | - Graham Hill
- Princess Margaret Cancer Centre, University Health Network, Toronto, ON M5G 1L7, Canada
| | - Eleanor Williams
- Structural Genomics Consortium, University of Oxford, Old Road Campus, Roosevelt Drive, Oxford OX3 7DQ, UK
| | - Gonzalo Sanchez-Duffhues
- Department of Cell and Chemical Biology and Oncode Institute, Leiden University Medical Center, P.O. Box 9600 RC, Leiden, the Netherlands
| | - Midory Thorikay
- Department of Cell and Chemical Biology and Oncode Institute, Leiden University Medical Center, P.O. Box 9600 RC, Leiden, the Netherlands
| | | | - Robert Siddaway
- The Arthur and Sonia Labatt Brain Tumour Research Centre, The Hospital for Sick Children, 555 University Avenue, Toronto, ON M5G1X8, Canada
| | - Jong Fu Wong
- Structural Genomics Consortium, University of Oxford, Old Road Campus, Roosevelt Drive, Oxford OX3 7DQ, UK
| | - Annette Wu
- Princess Margaret Cancer Centre, University Health Network, Toronto, ON M5G 1L7, Canada
| | - Lorraine N Apuzzo
- Department of Molecular and Cell Biology, University of Connecticut, Storrs, CT 06268, USA
| | - Jillian Haight
- Princess Margaret Cancer Centre, University Health Network, Toronto, ON M5G 1L7, Canada
| | - Annick You-Ten
- Princess Margaret Cancer Centre, University Health Network, Toronto, ON M5G 1L7, Canada
| | - Bryan E Snow
- Princess Margaret Cancer Centre, University Health Network, Toronto, ON M5G 1L7, Canada
| | - Andrew Wakeham
- Princess Margaret Cancer Centre, University Health Network, Toronto, ON M5G 1L7, Canada
| | - David J Goldhamer
- Department of Molecular and Cell Biology, University of Connecticut, Storrs, CT 06268, USA
| | - Daniel Schramek
- Center for Systems Biology, Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, ON M5G 1X5, Canada; Department of Molecular Genetics, University of Toronto, Toronto, ON M5S 1A8, Canada
| | - Alex N Bullock
- Structural Genomics Consortium, University of Oxford, Old Road Campus, Roosevelt Drive, Oxford OX3 7DQ, UK
| | - Peter Ten Dijke
- Department of Cell and Chemical Biology and Oncode Institute, Leiden University Medical Center, P.O. Box 9600 RC, Leiden, the Netherlands
| | - Cynthia Hawkins
- The Arthur and Sonia Labatt Brain Tumour Research Centre, The Hospital for Sick Children, 555 University Avenue, Toronto, ON M5G1X8, Canada; Division of Pathology, The Hospital for Sick Children, Toronto, ON M5G 1X8, Canada; Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON M5S 1A8, Canada
| | - Tak W Mak
- Princess Margaret Cancer Centre, University Health Network, Toronto, ON M5G 1L7, Canada.
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Feldsine PT, Jucker MT, Kaur M, Lienau AH, Kerr DE, Adamson A, Beaupre L, Bishop J, Casasola E, Cote C, Desilets S, D’lima C, Elahimanesh P, Fitzgerald S, Forgey R, Fortin J, Gohil V, Griffin J, Hardin M, Kaur D, Ketrenos J, King A, Kupski B, Luce S, Lucia L, Maeda S, Markun D, Marquez-Gonzalez M, McClendon J, McKessock J, Nelson C, Nguyen T, O’Brien C, Ramos M, Reilly S, Roa N, Schiffelbein Z, Shaffer K, Shepherd D, Sowell S, Trujillo E, Wang S, Williams K. Evaluation of the Assurance GDS® for Salmonella Method in Foods and Environmental Surfaces: Multilaboratory Collaborative Study. J AOAC Int 2019. [DOI: 10.1093/jaoac/93.1.150] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
Abstract
A multilaboratory collaborative study was conducted to compare the detection of Salmonella by the Assurance GDS® for Salmonella method and the Reference culture methods. Six foods, representing a variety of low microbial and high microbial load foods were analyzed. Seventeen laboratories in the United States and Canada participated in this study. No statistical differences (P < 0.05) were observed between the Assurance GDS for Salmonella and the Reference culture methods for any inoculation level of any food type or naturally contaminated food, except for pasta, for which the Assurance GDS method had a higher number of confirmed test portions for Salmonella compared to the Reference method.
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Affiliation(s)
| | - Markus T Jucker
- BioControl Systems, Inc., 12822 SE 32nd St, Bellevue, WA 98005
| | - Mandeep Kaur
- BioControl Systems, Inc., 12822 SE 32nd St, Bellevue, WA 98005
| | - Andrew H Lienau
- BioControl Systems, Inc., 12822 SE 32nd St, Bellevue, WA 98005
| | - David E Kerr
- BioControl Systems, Inc., 12822 SE 32nd St, Bellevue, WA 98005
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Braaten K, Janiak E, Fulcher I, Cotrill A, Fortin J, Goldberg A. Surgical abortion in patients with opioid dependence: Disparities in demographic factors, procedural pain, and post-abortion contraception. Contraception 2019. [DOI: 10.1016/j.contraception.2019.03.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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18
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Fortin J, Tian R, Zarrabi I, Hill G, Williams E, Sanchez-Duffhues G, Thorikay M, Ramachandran P, Siddaway R, Wong J, Haight J, You-Ten A, Snow B, Wakeham A, Schramek D, Bullock A, Dijke PT, Hawkins C, Mak T. DIPG-13. A NOVEL MOUSE MODEL REVEALS UNEXPECTED MECHANISMS OF ACTION OF ACVR1 MUTATIONS IN DIFFUSE INTRINSIC PONTINE GLIOMA. Neuro Oncol 2019. [DOI: 10.1093/neuonc/noz036.034] [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)
- Jerome Fortin
- Campbell Family Institute for Cancer Research, Princess Margaret Cancer Centre, University Health Network, Toronto, ON, Canada
| | - Ruxiao Tian
- Campbell Family Institute for Cancer Research, Princess Margaret Cancer Centre, University Health Network, Toronto, ON, Canada
| | - Ida Zarrabi
- Campbell Family Institute for Cancer Research, Princess Margaret Cancer Centre, University Health Network, Toronto, ON, Canada
| | - Graham Hill
- Campbell Family Institute for Cancer Research, Princess Margaret Cancer Centre, University Health Network, Toronto, ON, Canada
| | - Eleanor Williams
- Structural Genomics Consortium, University of Oxford, Oxford, United Kingdom
| | - Gonzalo Sanchez-Duffhues
- Department off Cell and Chemical Biology, Oncode Institute, Leiden University Medical Center, Leiden, Netherlands
| | - Midory Thorikay
- Department off Cell and Chemical Biology, Oncode Institute, Leiden University Medical Center, Leiden, Netherlands
| | - Parameswaran Ramachandran
- Campbell Family Institute for Cancer Research, Princess Margaret Cancer Centre, University Health Network, Toronto, ON, Canada
| | - Robert Siddaway
- The Arthur and Sonia Labatt Brain Tumour Research Centre, The Hospital for Sick Children, Toronto, ON, Canada
| | - Jong Wong
- Structural Genomics Consortium, University of Oxford, Oxford, United Kingdom
| | - Jillian Haight
- Campbell Family Institute for Cancer Research, Princess Margaret Cancer Centre, University Health Network, Toronto, ON, Canada
| | - Annick You-Ten
- Campbell Family Institute for Cancer Research, Princess Margaret Cancer Centre, University Health Network, Toronto, ON, Canada
| | - Bryan Snow
- Campbell Family Institute for Cancer Research, Princess Margaret Cancer Centre, University Health Network, Toronto, ON, Canada
| | - Andrew Wakeham
- Campbell Family Institute for Cancer Research, Princess Margaret Cancer Centre, University Health Network, Toronto, ON, Canada
| | - Daniel Schramek
- Center for Systems Biology, Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, ON, Canada
- Department of Molecular Genetics, University of Toronto, Toronto, ON, Canada
| | - Alex Bullock
- Structural Genomics Consortium, University of Oxford, Oxford, United Kingdom
| | - Peter ten Dijke
- Department off Cell and Chemical Biology, Oncode Institute, Leiden University Medical Center, Leiden, Netherlands
| | - Cynthia Hawkins
- The Arthur and Sonia Labatt Brain Tumour Research Centre, The Hospital for Sick Children, Toronto, ON, Canada
- Division of Pathology, The Hospital for Sick Children, Toronto, ON, Canada
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada
| | - Tak Mak
- Campbell Family Institute for Cancer Research, Princess Margaret Cancer Centre, University Health Network, Toronto, ON, Canada
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Pocius K, Bartz D, Maurer R, Stenquist A, Fortin J, Goldberg A. Serum human chorionic gonadotropin (hCG) trend within the first few days after medication abortion: a prospective study. Contraception 2016. [DOI: 10.1016/j.contraception.2016.07.048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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20
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Horwitz G, Roncari D, Braaten K, Maurer R, Fortin J, Goldberg A. BMI as predictor of adverse outcomes with moderate intravenous sedation during surgical abortion. Contraception 2016. [DOI: 10.1016/j.contraception.2016.07.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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21
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Ngo L, Braaten K, Eichen E, Fortin J, Maurer R, Goldberg A. Naproxen sodium for pain control with intrauterine device insertion: a randomized controlled trial. Contraception 2016. [DOI: 10.1016/j.contraception.2016.07.083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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22
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Martin S, Parekh R, Guessasma M, Léchelle J, Fortin J, Saleh K. Study of the sintering kinetics of bimodal powders. A parametric DEM study. POWDER TECHNOL 2015. [DOI: 10.1016/j.powtec.2014.03.057] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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23
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Hitomi M, Deleyrolle L, Sinyuk M, Otvos B, Brunet S, Jarrar A, Flavahan W, Goan W, Mulkearns-Hubert E, Zhang A, Rohaus M, Oli M, Vedam-Mai V, Fortin J, Futch H, Wu Q, Ahluwalia M, Rich J, Reynolds B, Lathia J. SC-11 * DIFFERENTIAL CONNEXIN FUNCTION ENHANCES SELF-RENEWAL IN GLIOBLASTOMA. Neuro Oncol 2014. [DOI: 10.1093/neuonc/nou275.11] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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24
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Goldberg A, Fitzmaurice G, Fortin J, McKetta S, Dean G, Drey E, Lichtenberg E, Bednarek P, Chen B, Dutton C, Maurer R, Winikoff B. Cervical preparation before second-trimester dilation and evacuation: a multicenter randomized trial comparing osmotic dilators alone to dilators plus adjunctive misoprostol or mifepristone. Contraception 2014. [DOI: 10.1016/j.contraception.2014.05.202] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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25
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Villeneuve MP, Lebeuf Y, Gervais R, Tremblay G, Vuillemard J, Fortin J, Chouinard P. Milk volatile organic compounds and fatty acid profile in cows fed timothy as hay, pasture, or silage. J Dairy Sci 2013; 96:7181-7194. [DOI: 10.3168/jds.2013-6785] [Citation(s) in RCA: 82] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2013] [Accepted: 07/25/2013] [Indexed: 11/19/2022]
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26
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Fortin J, Wellisch A, Maier K. CNAP - Evolution of Continuous Non-Invasive Arterial Blood Pressure Monitoring. ACTA ACUST UNITED AC 2013; 58 Suppl 1:/j/bmte.2013.58.issue-s1-G/bmt-2013-4179/bmt-2013-4179.xml. [PMID: 24042825 DOI: 10.1515/bmt-2013-4179] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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27
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Lesko J, Fortin J, Rooney V, Rie M, Goldberg A. The role of a semi-quantitative urine pregnancy test after uterine evacuation for very early, undesired pregnancy: a pilot randomized controlled trial. Contraception 2013. [DOI: 10.1016/j.contraception.2013.05.040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Ngapo T, Riendeau L, Laberge C, Leblanc D, Fortin J. “Chilled” pork—Part I: Sensory and physico-chemical quality. Meat Sci 2012; 92:330-7. [DOI: 10.1016/j.meatsci.2012.04.032] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2012] [Revised: 04/23/2012] [Accepted: 04/25/2012] [Indexed: 10/28/2022]
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Ngapo T, Riendeau L, Laberge C, Fortin J. “Chilled” pork — Part II. Consumer perception of sensory quality. Meat Sci 2012; 92:338-45. [DOI: 10.1016/j.meatsci.2012.04.031] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2012] [Revised: 04/23/2012] [Accepted: 04/25/2012] [Indexed: 11/26/2022]
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Lester F, Kakaire O, Byamugisha J, Fortin J, Averbach S, Maurer R, Goldberg A. O397 INTRACESAREAN INSERTION OF THE COPPER T 380A VS 6-WEEK POST-CESAREAN INSERTION: AN RCT. Int J Gynaecol Obstet 2012. [DOI: 10.1016/s0020-7292(12)60827-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Lester F, Averbach S, Fortin J, Byamugisha J, Goldberg A, Kakaire O. M143 ACCEPTABILITY OF THE IUD AMONG WOMEN WHO OPTED OUT OF A RANDOMIZED CONTROLLED TRIAL OF INTRACESAREAN INSERTION OF THE COPPER-T 380A IN KAMPALA, UGANDA. Int J Gynaecol Obstet 2012. [DOI: 10.1016/s0020-7292(12)61337-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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32
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Pocius K, Mauer R, Fortin J, Charm S, Bartz D. Medication abortion follow-up: the use of early post-procedural serum HCG. Contraception 2012. [DOI: 10.1016/j.contraception.2012.05.044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Pouliot E, Gariépy C, Thériault M, Avezard C, Fortin J, Simmons NJ, Castonguay FW. Effects of low-voltage electrical stimulation and aging on lamb meat quality. Can J Anim Sci 2012. [DOI: 10.4141/cjas2011-076] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Pouliot, E., Gariépy, C., Thériault, M., Avezard, C., Fortin, J., Simmons, N. J. and Castonguay, F. W. 2012. Effects of low-voltage electrical stimulation and aging on lamb meat quality. Can. J. Anim. Sci. 92: 59–66. The aim of this study was to evaluate the effect of electrical stimulation (ES) and aging time on meat quality of heavy lamb as produced in Quebec. Seventy-six Suffolk-sired crossbred male lambs were slaughtered at a target weight of 50±2 kg. Half of them were electrically stimulated (ES vs. control) at 5–10 min postmortem (21 V; 0.25 A; 60 s). Postmortem pH decline and temperature were monitored. After carcass cutting, longissimus dorsi sections were assigned to aging periods of 1, 3 or 8 d. Temperature decline was the same for both treatments (P=0.749). However, ES carcasses always had a lower pH value than controls during the first 24 h (P<0.001) while the ultimate pH was equivalent (P=0.803). Tenderness, as assessed by either Warner-Bratzler shear force (39 carcasses) or sensory evaluation (35 carcasses) was enhanced by both ES (P<0.001) and aging (P<0.001). At each aging time, tenderness was greater for ES meat. In addition, only 3 d of aging were necessary for ES meat to achieve the tenderness level attained by the controls after 8 d. Sarcomeres were longer (P<0.001) in ES meat than in controls while myofibrillar fragmentation index was not affected by ES treatment (P=0.743). Electrical stimulation also had small effects on color parameters (a*, b* and L*; P<0.01) and flavor (P=0.04). These results provide the first evidence that tenderness of the meat from heavy lambs produced and processed in Quebec could be enhanced by ES, mostly through cold shortening reduction.
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Affiliation(s)
- E. Pouliot
- Département des sciences animales, 2425 rue de l'Agriculture, Université Laval, Québec, Québec, Canada G1V 0A6
| | - C. Gariépy
- Food Research and Development Centre, Agriculture and Agri-Food Canada, 3600 Casavant Blvd West, Saint-Hyacinthe, Quebec, Canada J2S 8E3
| | - M. Thériault
- Département des sciences animales, 2425 rue de l'Agriculture, Université Laval, Québec, Québec, Canada G1V 0A6
- Dairy and Swine Research and Development Centre, Agriculture and Agri-Food Canada, 2000 College Street, Sherbrooke, Quebec, Canada J1M 0C8
| | - C. Avezard
- Food Research and Development Centre, Agriculture and Agri-Food Canada, 3600 Casavant Blvd West, Saint-Hyacinthe, Quebec, Canada J2S 8E3
| | - J. Fortin
- Food Research and Development Centre, Agriculture and Agri-Food Canada, 3600 Casavant Blvd West, Saint-Hyacinthe, Quebec, Canada J2S 8E3
| | - N. J. Simmons
- Carne Technologies Ltd, 4 Matos Segedin Drive, PO Box 740, Cambridge 3450, New Zealand
| | - F. W. Castonguay
- Département des sciences animales, 2425 rue de l'Agriculture, Université Laval, Québec, Québec, Canada G1V 0A6
- Dairy and Swine Research and Development Centre, Agriculture and Agri-Food Canada, 2000 College Street, Sherbrooke, Quebec, Canada J1M 0C8
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Ougier-Simonin A, Guéguen Y, Fortin J, Schubnel A, Bouyer F. Permeability and elastic properties of cracked glass under pressure. ACTA ACUST UNITED AC 2011. [DOI: 10.1029/2010jb008077] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Taylor GP, Anderson J, Clayden P, Gazzard BG, Fortin J, Kennedy J, Lazarus L, Newell ML, Osoro B, Sellers S, Tookey PA, Tudor-Williams G, Williams A, de Ruiter A. British HIV Association and Children's HIV Association position statement on infant feeding in the UK 2011. HIV Med 2011; 12:389-93. [PMID: 21418503 DOI: 10.1111/j.1468-1293.2011.00918.x] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
To prevent the transmission of HIV infection during the postpartum period, the British HIV Association and Children's HIV Association (BHIVA/CHIVA) continue to recommend the complete avoidance of breast feeding for infants born to HIV-infected mothers, regardless of maternal disease status, viral load or treatment.
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Affiliation(s)
- G P Taylor
- British HIV Association (BHIVA), BHIVA Secretariat, Mediscript Ltd, London, UK.
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Pons A, David C, Fortin J, Stanchits S, Menéndez B, Mengus JM. X-ray imaging of water motion during capillary imbibition: A study on how compaction bands impact fluid flow in Bentheim sandstone. ACTA ACUST UNITED AC 2011. [DOI: 10.1029/2010jb007973] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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38
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Ngapo T, Fortin J, Martin JF. Do pig farmers preferences bias consumer choice for pork? Response to critique of the pork preference studies. Meat Sci 2010; 85:788-91. [DOI: 10.1016/j.meatsci.2010.03.022] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2009] [Revised: 03/08/2010] [Accepted: 03/11/2010] [Indexed: 11/16/2022]
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39
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Lacroix N, St-Gelais D, Champagne C, Fortin J, Vuillemard JC. Characterization of aromatic properties of old-style cheese starters. J Dairy Sci 2010; 93:3427-41. [DOI: 10.3168/jds.2009-2795] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2009] [Accepted: 04/01/2010] [Indexed: 11/19/2022]
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41
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Pouliot É, Gariépy C, Thériault M, Avezard C, Fortin J, Castonguay FW. Growth performance, carcass traits and meat quality of heavy lambs reared in a warm or cold environment during winter. Can J Anim Sci 2009. [DOI: 10.4141/cjas08101] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The goal of this study was to evaluate the impact of winter rearing environment on the growth performance and meat quality of heavy lambs. Half of sixty-four Dorset lambs (32 males and 32 females) were raised in each of two different environments: warm and cold with average temperature of 10.9 ± 0.7 °C and -2.0 ± 5.2 °C, respectively. The lambs were slaughtered at live weights of 41-45 kg for females and 46-50 kg for males. Cold environment had no adverse effect on either growth performance or carcass quality. The rate of longissimus dorsi muscle deposition (P = 0.049) and its depth at slaughter (P = 0.027) were rather greater in lambs reared in the cold environment and a higher proportion of oxido-glycolytic fibres (P = 0.047) was also observed in this muscle. Rearing environment had only a minor effect on the organoleptic qualities, with the cold environment promoting juiciness of the meat (P = 0.043). Therefore, cold environment rearing such as used in this study represents an economic advantage for lamb producers by reducing the costs associated with the construction of insulated barns, while maintaining growth performance, as well as carcass and meat quality. Key words: Lamb, rearing environment, temperature, growth, carcass, meat quality
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Faucitano L, Chouinard PY, Fortin J, Mandell IB, Lafrenière C, Girard CL, Berthiaume R. Comparison of alternative beef production systems based on forage finishing or grain-forage diets with or without growth promotants: 2. Meat quality, fatty acid composition, and overall palatability. J Anim Sci 2008; 86:1678-89. [PMID: 18375659 DOI: 10.2527/jas.2007-0756] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- L Faucitano
- Agriculture & Agri-Food Canada, Sherbrooke, Québec, J1M 1Z3, Canada.
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Fortin J, Marte W, Grüllenberger R, Hacker A, Habenbacher W, Heller A, Wagner C, Wach P, Skrabal F. Continuous non-invasive blood pressure monitoring using concentrically interlocking control loops. Comput Biol Med 2006; 36:941-57. [PMID: 16483562 DOI: 10.1016/j.compbiomed.2005.04.003] [Citation(s) in RCA: 137] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2004] [Revised: 04/11/2005] [Accepted: 04/18/2005] [Indexed: 11/18/2022]
Abstract
A new method and apparatus for non-disruptive blood pressure (BP) recording in the finger based on the vascular unloading technique is introduced. The instrument, in contrast to intermittent set point readjustments of the conventional vascular unloading technique, delivers BP without interruptions, thus refining the Penáz' principle. The method is based on concentrically interlocking control loops for correct long-term tracing of finger BP, including automatic set point adaptation, light control and separate inlet and outlet valves for electro-pneumatic control. Examples of long-term BP recordings at rest and during autonomic function tests illustrate the potential of the new instrument.
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Affiliation(s)
- J Fortin
- Institute of Medical Engineering, Graz, University of Technology, Krenngasse, Graz, Austria.
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Fortin J, Habenbacher W, Heller A, Hacker A, Grüllenberger R, Innerhofer J, Passath H, Wagner C, Haitchi G, Flotzinger D, Pacher R, Wach P. Non-invasive beat-to-beat cardiac output monitoring by an improved method of transthoracic bioimpedance measurement. Comput Biol Med 2005; 36:1185-203. [PMID: 16131462 DOI: 10.1016/j.compbiomed.2005.06.001] [Citation(s) in RCA: 161] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2005] [Revised: 06/17/2005] [Accepted: 06/17/2005] [Indexed: 10/25/2022]
Abstract
The report describes a method of impedance cardiography using an improved estimate of thoracic volume. The formulas and their implementation in hardware and software are explained and new shortband electrodes are described which generate a good homogeneous thoracic field. Examples of stroke volume and cardiac output curves underline the capabilities of the monitoring system "Task Force Monitor". In several experiments, results are compared to thermodilution as well as to BioZ measurements: the new method excels in comparison with thermodilution and is comparable to the BioZ device. Compared to traditional electrodes, the new shortband electrodes are shown to provide better reproducibility.
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Affiliation(s)
- J Fortin
- Institute of Medical Engineering, Graz University of Technology, Krenngasse 37, A-8010 Graz, Austria.
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Fortin J, Gagnon-Bertrand E, Vézina L, Rompré M. Preferential bromide and pesticide movement to tile drains under different cropping practices. J Environ Qual 2002; 31:1940-1952. [PMID: 12469844 DOI: 10.2134/jeq2002.1940] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Subsurface drainage systems are useful tools to study chemical leaching in soils. Our objective was to compare the breakthrough behavior of bromide, atrazine (2-chloro-4-ethylamino-6-isopropylamino-s-triazine) and metolachlor [2-chloro-N-(2-ethyl-6-methylphenyl)-N-(2-methoxy-1-methylethyl) acetamid] to tile drains under two fall tillage practices (conventional tillage [CT] with a moldboard plow, and reduced tillage [RT] with a chisel plow) in field plots cultivated with corn (Zea mays L.). Leachate volume were greater in RT than in CT, with no statistical differences. Soil analysis showed that bromide migrated deeper in the soil profile than both herbicides, with little tillage effect. All chemicals were detected in drainage water at the same time and followed an event-driven behavior. Tillage had no effect on atrazine and metolachlor found in drainage water, while bromide concentration peaks were higher in RT than in CT in 1999. Concentration peaks were recorded earlier for atrazine and metolachlor than for bromide. Plots of cumulative relative chemical mass (cumulative mass divided by total mass measured in drainage) as a function of cumulative drainage were mostly linear for bromide, while they were S-shaped for both herbicides. Drainage that corresponded to 50% of relative cumulative mass ranged from 40 to 55% for bromide and from 5 to 28% for both herbicides. Rapid chemical movement to tile drains suggested that preferential flow was important in both CT and RT, and that these tillage practices had little influence on this phenomena.
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Affiliation(s)
- J Fortin
- Département des sols et de génie agroalimentaire, Pavillon Paul-Comtois, Université Laval, Quebec, QC, Canada G1K 7P4.
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Fortin J. [The contrary adolescent: examples from school]. Rev Infirm 2002:20-2. [PMID: 12432634] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/27/2023]
Affiliation(s)
- J Fortin
- Université Lille 2, Droit et Santé, service d'épidémiologie et de santé publique, hôpital Calmette, CHRU, 59037 Lille, France
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Lagace L, Girouard C, Dumont J, Fortin J, Roy D. Rapid Prediction of Maple Syrup Grade and Sensory Quality by Estimation of Microbial Quality of Maple Sap Using ATP Bioluminescence. J Food Sci 2002. [DOI: 10.1111/j.1365-2621.2002.tb08734.x] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Fortin J. [Contravening adolescents: the example of the school institution]. Arch Pediatr 2001; 8 Suppl 2:482s-484s. [PMID: 11394159 DOI: 10.1016/s0929-693x(01)80117-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- J Fortin
- Université Lille 2, Droit et Santé, service d'épidémiologie et de santé publique, hôpital Calmette, CHRU, 59037 Lille, France
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