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Collongues N, Durand-Dubief F, Lebrun-Frenay C, Audoin B, Ayrignac X, Bensa C, Bigaut K, Bourre B, Carra-Dallière C, Ciron J, Defer G, Kwiatkowski A, Leray E, Maillart E, Marignier R, Mathey G, Morel N, Thouvenot E, Zéphir H, Boucher J, Boutière C, Branger P, Da Silva A, Demortière S, Guillaume M, Hebant B, Januel E, Kerbrat A, Manchon E, Moisset X, Montcuquet A, Pierret C, Pique J, Poupart J, Prunis C, Roux T, Schmitt P, Androdias G, Cohen M. Cancer and multiple sclerosis: 2023 recommendations from the French Multiple Sclerosis Society. Mult Scler 2024; 30:899-924. [PMID: 38357870 DOI: 10.1177/13524585231223880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2024]
Abstract
BACKGROUND Epidemiological data reveal that 45% of persons with multiple sclerosis (PwMS) in France are more than 50 years. This population more than 50 is more susceptible to cancer, and this risk may be increased by frequent use of immunosuppressive drugs. Consequently, concerns have arisen about the potential increased risk of cancer in PwMS and how patients should be screened and managed in terms of cancer risk. OBJECTIVE To develop evidence-based recommendations to manage the coexistence of cancer and multiple sclerosis (MS). METHODS The French Group for Recommendations in MS collected articles from PubMed and university databases covering the period January 1975 through June 2022. The RAND/UCLA method was employed to achieve formal consensus. MS experts comprehensively reviewed the full-text articles and developed the initial recommendations. A group of multidisciplinary health care specialists then validated the final proposal. RESULTS Five key questions were addressed, encompassing various topics such as cancer screening before or after initiating a disease-modifying therapy (DMT), appropriate management of MS in the context of cancer, recommended follow-up for cancer in patients receiving a DMT, and the potential reintroduction of a DMT after initial cancer treatment. A strong consensus was reached for all 31 recommendations. CONCLUSION These recommendations propose a strategic approach to managing cancer risk in PwMS.
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Affiliation(s)
- Nicolas Collongues
- Department of Neurology, University Hospital of Strasbourg, Strasbourg, France
- Center for Clinical Investigation, INSERM U1434, Strasbourg, France
- Biopathology of Myelin, Neuroprotection and Therapeutic Strategy, INSERM U1119, Strasbourg, France
- Department of Pharmacology, Addictology, Toxicology, and Therapeutics, Strasbourg University, Strasbourg, France
| | - Françoise Durand-Dubief
- Service de Sclérose en Plaques, Pathologies de la Myéline et Neuro-Inflammation, Hôpital Neurologique Pierre Wertheimer, Bron, France
| | - Christine Lebrun-Frenay
- Department of Neurology, CHU Nice, Nice, France
- Université Côte d'Azur, UMR2CA-URRIS, Nice, France
| | - Bertrand Audoin
- Department of Neurology, CRMBM, APHM, Aix-Marseille University, Marseille, France
| | - Xavier Ayrignac
- Department of Neurology, Montpellier University Hospital, Montpellier, France
- University of Montpellier, Montpellier, France
- INM, INSERM, Montpellier, France
| | - Caroline Bensa
- Department of Neurology, Hôpital Fondation Adolphe de Rothschild, Paris, France
| | - Kévin Bigaut
- Department of Neurology, University Hospital of Strasbourg, Strasbourg, France
- Biopathology of Myelin, Neuroprotection and Therapeutic Strategy, INSERM U1119, Strasbourg, France
| | | | | | - Jonathan Ciron
- CHU de Toulouse, CRC-SEP, Department of Neurology, Toulouse, France
- Université Toulouse III, Infinity, INSERM UMR1291-CNRS UMR5051, Toulouse, France
| | - Gilles Defer
- Department of Neurology, Caen University Hospital, Caen, France
| | - Arnaud Kwiatkowski
- Department of Neurology, Lille Catholic University, Lille Catholic Hospitals, Lille, France
| | - Emmanuelle Leray
- Université de Rennes, EHESP, CNRS, INSERM, ARENES-UMR 6051, RSMS-U1309, Rennes, France
| | | | - Romain Marignier
- Service de Sclérose en Plaques, Pathologies de la Myéline et Neuro-Inflammation, Hôpital Neurologique Pierre Wertheimer, Bron, France
| | - Guillaume Mathey
- Department of Neurology, Nancy University Hospital, Nancy, France
| | - Nathalie Morel
- Service de Neurologie, Centre Hospitalier Annecy Genevois, Epagny-Metz-Tessy, France
| | - Eric Thouvenot
- Service de Neurologie, CHU de Nîmes, Nîmes, France
- Institut de Génomique Fonctionnelle, Université de Montpellier, CNRS, INSERM, Montpellier, France
| | - Hélène Zéphir
- University of Lille, INSERM U1172, CHU de Lille, Lille, France
| | - Julie Boucher
- Department of Neurology, CHU de Lille, Lille, France
| | - Clémence Boutière
- Department of Neurology, University Hospital of Marseille, Marseille, France
| | - Pierre Branger
- Service de Neurologie, CHU de Caen Normandie, Caen, France
| | - Angélique Da Silva
- Breast Cancer Unit, Centre François Baclesse, Institut Normand du Sein, Caen, France
| | - Sarah Demortière
- Department of Neurology, CRMBM, APHM, Aix-Marseille University, Marseille, France
| | | | | | - Edouard Januel
- Sorbonne Université, Paris, France/Institut Pierre Louis d'Epidémiologie et de Santé Publique, AP-HP, Hôpital Pitié Salpêtrière, Département de Santé Publique, Paris, France
- Département de Neurologie, Hôpital Pitié Salpêtrière, AP-HP, Paris, France
| | - Anne Kerbrat
- Service de Neurologie, CHU de Rennes, France
- EMPENN U1228, INSERM-INRIA, Rennes, France
| | - Eric Manchon
- Service de Neurologie, Centre Hospitalier de Gonesse, Gonesse, France
| | - Xavier Moisset
- Université Clermont Auvergne, CHU Clermont-Ferrand, INSERM, Neuro-Dol, Clermont-Ferrand, France
| | | | - Chloé Pierret
- Université de Rennes, EHESP, CNRS, INSERM, ARENES-UMR 6051, RSMS U-1309, Rennes, France
| | - Julie Pique
- Service de Sclérose en Plaques, Pathologies de la Myéline et Neuro-Inflammation, Hôpital Neurologique Pierre Wertheimer, Bron, France
| | - Julien Poupart
- Department of Neurology and U995-LIRIC-Lille Inflammation Research International Center, INSERM, University of Lille, CHU Lille, Lille, France
| | - Chloé Prunis
- Department of Neurology, Nancy University Hospital, Nancy, France
| | - Thomas Roux
- Hôpital La Pitié-Salpêtrière, Service de Neurologie, Paris, France
- CRC-SEP Paris. Centre des maladies inflammatoires rares du cerveau et de la moelle de l'enfant et de l'adulte (Mircem)
| | | | - Géraldine Androdias
- Service de Sclérose en Plaques, Pathologies de la Myéline et Neuro-Inflammation, Service de Neurologie, Hôpital Neurologique Pierre Wertheimer, Bron, France
- Clinique de la Sauvegarde-Ramsay Santé, Lyon, France
| | - Mikael Cohen
- Department of Neurology, CHU Nice, Nice, France/Université Côte d'Azur, UMR2CA-URRIS, Nice, France
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Greenfield J, Metz LM, Khakban A, Llorian ER, Michaux KD, Traboulsee A, Oh J, Smyth P, Lynd LD, Bulloch AGM, Williams JVA, Patten SB. Cancer risk, disease-modifying therapy, and age in multiple sclerosis: A retrospective population-based cohort study. Mult Scler Relat Disord 2023; 80:105091. [PMID: 37924714 DOI: 10.1016/j.msard.2023.105091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Revised: 10/02/2023] [Accepted: 10/18/2023] [Indexed: 11/06/2023]
Abstract
BACKGROUND Long-term population-based safety studies are needed to investigate cancer outcomes in people with multiple sclerosis (MS) treated with modern disease-modifying therapy (DMT). OBJECTIVES To investigate if exposure to DMT increases the risk of invasive cancer in MS. METHODS We used population-based administrative health data from Alberta, Canada between 2008 and 2018. DMT exposure was defined in two ways: first as exposure to any DMT, and second by DMT type (modulating, sequestering, depleting). Study outcome was time to first diagnosis of invasive cancer. Cancer risk was compared to the general population using standardized incidence ratios (SIRs) and to the unexposed MS cases using hazard ratios (HRs). RESULTS The analysis included 14,313 MS cases: 5,801 (40.5 %) were exposed to DMT. Median (interquartile range) follow-up was 8.4 (4.3, 10.4) years. Compared to the general population, there was no difference in cancer risk for the overall MS population (SIR: 0.94, 95 % confidence interval [CI]: 0.87, 1.02) or the DMT-exposed MS cases (SIR: 0.89; 95 % CI: 0.75, 1.05). Compared to unexposed MS cases, we found an interaction with age for exposure to any DMT (p = 0.001) and modulating DMT (p = 0.001), indicating that a difference in the risk of cancer associated with DMT depends on age. Cancer risk was not associated with exposure to sequestering DMT (HR: 1.28, 95 % CI: 0.78, 2.08) or depleting DMT (HR: 2.29, 95 % CI: 0.86, 6.14). CONCLUSIONS Cancer risk for MS patients was similar to the general population. In the MS population, the age-dependent effect of DMT for cancer risk suggests a higher risk of cancer with age 62 or older and a protective effect at younger age. Further investigation is required to clarify whether the interaction between DMT exposure and age is a causal effect.
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Affiliation(s)
- Jamie Greenfield
- Department of Clinical Neurosciences, University of Calgary, 9th Floor South Tower, Foothills Medical centre, 1403 29 Street NW, Calgary, AB T2N 2T9, Canada.
| | - Luanne M Metz
- Department of Clinical Neurosciences, University of Calgary, 9th Floor South Tower, Foothills Medical centre, 1403 29 Street NW, Calgary, AB T2N 2T9, Canada
| | - Amir Khakban
- Collaboration for Outcomes Research and Evaluation, Faculty of Pharmaceutical Sciences, University of British Columbia, Vancouver, BC, Canada
| | - Elisabet Rodriguez Llorian
- Collaboration for Outcomes Research and Evaluation, Faculty of Pharmaceutical Sciences, University of British Columbia, Vancouver, BC, Canada
| | - Kristina D Michaux
- Collaboration for Outcomes Research and Evaluation, Faculty of Pharmaceutical Sciences, University of British Columbia, Vancouver, BC, Canada
| | - Anthony Traboulsee
- Division of Neurology, Department of Medicine, University of British Columbia, Vancouver, BC, Canada
| | - Jiwon Oh
- Division of Neurology, St. Michael's Hospital, University of Toronto, Toronto, ON, Canada
| | - Penelope Smyth
- Division of Neurology, Department of Medicine, University of Alberta, Edmonton, AB, Canada
| | - Larry D Lynd
- Collaboration for Outcomes Research and Evaluation, Faculty of Pharmaceutical Sciences, University of British Columbia, Vancouver, BC, Canada; Centre for Health Evaluation and Outcome Sciences (CHÉOS), St. Paul's Hospital, Vancouver, BC, Canada
| | - Andrew G M Bulloch
- Department of Community Health Sciences, University of Calgary, Calgary, AB, Canada
| | - Jeanne V A Williams
- Department of Community Health Sciences, University of Calgary, Calgary, AB, Canada
| | - Scott B Patten
- Department of Community Health Sciences, University of Calgary, Calgary, AB, Canada
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Thakolwiboon S, Mills EA, Yang J, Doty J, Belkin MI, Cho T, Schultz C, Mao-Draayer Y. Immunosenescence and multiple sclerosis: inflammaging for prognosis and therapeutic consideration. FRONTIERS IN AGING 2023; 4:1234572. [PMID: 37900152 PMCID: PMC10603254 DOI: 10.3389/fragi.2023.1234572] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/04/2023] [Accepted: 09/29/2023] [Indexed: 10/31/2023]
Abstract
Aging is associated with a progressive decline of innate and adaptive immune responses, called immunosenescence. This phenomenon links to different multiple sclerosis (MS) disease courses among different age groups. While clinical relapse and active demyelination are mainly related to the altered adaptive immunity, including invasion of T- and B-lymphocytes, impairment of innate immune cell (e.g., microglia, astrocyte) function is the main contributor to disability progression and neurodegeneration. Most patients with MS manifest the relapsing-remitting phenotype at a younger age, while progressive phenotypes are mainly seen in older patients. Current disease-modifying therapies (DMTs) primarily targeting adaptive immunity are less efficacious in older patients, suggesting that immunosenescence plays a role in treatment response. This review summarizes the recent immune mechanistic studies regarding immunosenescence in patients with MS and discusses the clinical implications of these findings.
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Affiliation(s)
| | - Elizabeth A. Mills
- Department of Neurology, University of Michigan, Ann Arbor, MI, United States
| | - Jennifer Yang
- Department of Neurology, University of Michigan, Ann Arbor, MI, United States
| | - Jonathan Doty
- Michigan Institute for Neurological Disorders, Farmington Hills, MI, United States
| | - Martin I. Belkin
- Michigan Institute for Neurological Disorders, Farmington Hills, MI, United States
| | - Thomas Cho
- Department of Neurology, University of Michigan, Ann Arbor, MI, United States
| | - Charles Schultz
- Department of Neurology, University of Michigan, Ann Arbor, MI, United States
| | - Yang Mao-Draayer
- Department of Neurology, University of Michigan, Ann Arbor, MI, United States
- Michigan Institute for Neurological Disorders, Farmington Hills, MI, United States
- Autoimmune Center of Excellence, University of Michigan, Ann Arbor, MI, United States
- Graduate Program in Immunology, Program in Biomedical Sciences, University of Michigan, Ann Arbor, MI, United States
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BAHAR Y, YILDIZ E, BAHAR AR, KARABUDAK R. Is cancer risk reduced in multiple sclerosis? Results from a tertiary referral center. Turk J Med Sci 2023; 53:962-969. [PMID: 38031938 PMCID: PMC10760532 DOI: 10.55730/1300-0144.5660] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Revised: 08/18/2023] [Accepted: 03/27/2023] [Indexed: 12/01/2023] Open
Abstract
BACKGROUND Multiple sclerosis (MS) patients may be protected against cancer because of increased immune surveillance. However, aberrant T/B cell functioning in MS may increase the risk of cancer. We aimed to compare the frequency of cancer among patients with MS with an appropriate control group matched by the variables such as age, gender, tobacco smoking history, body mass index (BMI), and family history of cancer. METHODS The MS patients who were registered and followed up at the MS Center in Hacettepe University Hospitals and appropriately matched with controls were included. A self-administered questionnaire with links to the online survey was delivered. RESULTS Overall, 1037 responses out of 2074 in MS patients and 506 responses out of 1500 control group were included. Fourteen (1.35%) of MS patients and 18 (3.6%) of the controls were diagnosed with cancer. The odds ratio of having cancer in patients with MS compared to the control group was 0.389 (95% CI = 0.161-0.940, p < 0.05). DISCUSSION There was no statistically significant difference in age, gender, tobacco smoking, and BMI between the groups after propensity score matching. The odds of having cancer were lower in our MS patients compared to the controls. The autoimmune changes responsible for the pathogenesis of MS may be responsible for the decrease in cancer risk.
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Affiliation(s)
- Yasemin BAHAR
- Department of Medicine, Faculty of Medicine, Hacettepe University, Ankara,
Turkiye
| | - Egemen YILDIZ
- Department of Emergency Medicine, Sultan 2. Abdulhamid Han Training and Research Hospital, University of Health Sciences, İstanbul,
Turkiye
| | - Abdul Rasheed BAHAR
- Department of Medicine, Faculty of Medicine, Hacettepe University, Ankara,
Turkiye
| | - Rana KARABUDAK
- Department of Neurology, Faculty of Medicine, Hacettepe University, Ankara,
Turkiye
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Bridge F, Brotherton JML, Foong Y, Butzkueven H, Jokubaitis VG, Van der Walt A. Risk of cervical pre-cancer and cancer in women with multiple sclerosis exposed to high efficacy disease modifying therapies. Front Neurol 2023; 14:1119660. [PMID: 36846149 PMCID: PMC9950275 DOI: 10.3389/fneur.2023.1119660] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Accepted: 01/24/2023] [Indexed: 02/12/2023] Open
Abstract
There is a growing need to better understand the risk of malignancy in the multiple sclerosis (MS) population, particularly given the relatively recent and widespread introduction of immunomodulating disease modifying therapies (DMTs). Multiple sclerosis disproportionately affects women, and the risk of gynecological malignancies, specifically cervical pre-cancer and cancer, are of particular concern. The causal relationship between persistent human papillomavirus (HPV) infection and cervical cancer has been definitively established. To date, there is limited data on the effect of MS DMTs on the risk of persistent HPV infection and subsequent progression to cervical pre-cancer and cancer. This review evaluates the risk of cervical pre-cancer and cancer in women with MS, including the risk conferred by DMTs. We examine additional factors, specific to the MS population, that alter the risk of developing cervical cancer including participation in HPV vaccination and cervical screening programs.
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Affiliation(s)
- Francesca Bridge
- Department of Neuroscience, Central Clinical School, Monash University, Melbourne, VIC, Australia,Department of Neurology, Alfred Health, Melbourne, VIC, Australia,*Correspondence: Francesca Bridge ✉
| | - Julia M. L. Brotherton
- Australian Centre for the Prevention of Cervical Cancer (Formerly Victorian Cytology Service), Carlton South, VIC, Australia,Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, University of Melbourne, Melbourne, VIC, Australia
| | - Yi Foong
- Department of Neuroscience, Central Clinical School, Monash University, Melbourne, VIC, Australia,Department of Neurology, Alfred Health, Melbourne, VIC, Australia,Department of Neurosciences, Eastern Health, Melbourne, VIC, Australia
| | - Helmut Butzkueven
- Department of Neuroscience, Central Clinical School, Monash University, Melbourne, VIC, Australia,Department of Neurology, Alfred Health, Melbourne, VIC, Australia
| | - Vilija G. Jokubaitis
- Department of Neuroscience, Central Clinical School, Monash University, Melbourne, VIC, Australia,Department of Neurology, Alfred Health, Melbourne, VIC, Australia
| | - Anneke Van der Walt
- Department of Neuroscience, Central Clinical School, Monash University, Melbourne, VIC, Australia,Department of Neurology, Alfred Health, Melbourne, VIC, Australia
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Zuroff L, Rezk A, Shinoda K, Espinoza DA, Elyahu Y, Zhang B, Chen AA, Shinohara RT, Jacobs D, Alcalay RN, Tropea TF, Chen-Plotkin A, Monsonego A, Li R, Bar-Or A. Immune aging in multiple sclerosis is characterized by abnormal CD4 T cell activation and increased frequencies of cytotoxic CD4 T cells with advancing age. EBioMedicine 2022; 82:104179. [PMID: 35868128 PMCID: PMC9305354 DOI: 10.1016/j.ebiom.2022.104179] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Revised: 06/12/2022] [Accepted: 07/05/2022] [Indexed: 01/01/2023] Open
Abstract
BACKGROUND Immunosenescence (ISC) describes age-related changes in immune-system composition and function. Multiple sclerosis (MS) is a lifelong inflammatory condition involving effector and regulatory T-cell imbalance, yet little is known about T-cell ISC in MS. We examined age-associated changes in circulating T cells in MS compared to normal controls (NC). METHODS Forty untreated MS (Mean Age 43·3, Range 18-72) and 49 NC (Mean Age 48·6, Range 20-84) without inflammatory conditions were included in cross-sectional design. T-cell subsets were phenotypically and functionally characterized using validated multiparametric flow cytometry. Their aging trajectories, and differences between MS and NC, were determined using linear mixed-effects models. FINDINGS MS patients demonstrated early and persistent redistribution of naïve and memory CD4 T-cell compartments. While most CD4 and CD8 T-cell aging trajectories were similar between groups, MS patients exhibited abnormal age-associated increases of activated (HLA-DR+CD38+; (P = 0·013) and cytotoxic CD4 T cells, particularly in patients >60 (EOMES: P < 0·001). Aging MS patients also failed to upregulate CTLA-4 expression on both CD4 (P = 0·014) and CD8 (P = 0·009) T cells, coupled with abnormal age-associated increases in frequencies of B cells expressing costimulatory molecules. INTERPRETATION While many aspects of T-cell aging in MS are conserved, the older MS patients harbour abnormally increased frequencies of CD4 T cells with activated and cytotoxic effector profiles. Age-related decreased expression of T-cell co-inhibitory receptor CTLA-4, and increased B-cell costimulatory molecule expression, may provide a mechanism that drives aberrant activation of effector CD4 T cells that have been implicated in progressive disease. FUNDING Stated in Acknowledgements section of manuscript.
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Affiliation(s)
- Leah Zuroff
- The Center for Neuroinflammation and Experimental Therapeutics and the Department of Neurology, Hospital of the University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Ayman Rezk
- The Center for Neuroinflammation and Experimental Therapeutics and the Department of Neurology, Hospital of the University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Koji Shinoda
- The Center for Neuroinflammation and Experimental Therapeutics and the Department of Neurology, Hospital of the University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Diego A Espinoza
- The Center for Neuroinflammation and Experimental Therapeutics and the Department of Neurology, Hospital of the University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Yehezqel Elyahu
- The Shraga Segal Department of Microbiology, Immunology and Genetics, Faculty of Health Sciences; Zlotowski Neuroscience Center and Regenerative Medicine and Stem Cell Research Center; and National Institute for Biotechnology, Ben-Gurion University of the Negev, Beer-Sheva 8410501, Israel
| | - Bo Zhang
- Department of Cardiology, The fourth affiliated hospital of Harbin Medical University, Harbin, Heilongjiang, 150001, China
| | - Andrew A Chen
- Center for Biomedical Image Computing and Analytics, University of Pennsylvania, Philadelphia, PA 19104, USA; Department of Biostatistics, Epidemiology, and Informatics, Center for Clinical Epidemiology and Biostatistics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Russell T Shinohara
- Department of Biostatistics, Epidemiology, and Informatics, Center for Clinical Epidemiology and Biostatistics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Dina Jacobs
- The Center for Neuroinflammation and Experimental Therapeutics and the Department of Neurology, Hospital of the University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Roy N Alcalay
- Department of Neurology, Columbia University, New York, NY 10032, USA; The Center for Movement Disorders, Neurological Institute, Tel Aviv Medical Center, Tel Aviv 6423914, Israel
| | - Thomas F Tropea
- Department of Neurology, Perelman school of medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Alice Chen-Plotkin
- Department of Neurology, Perelman school of medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Alon Monsonego
- The Shraga Segal Department of Microbiology, Immunology and Genetics, Faculty of Health Sciences; Zlotowski Neuroscience Center and Regenerative Medicine and Stem Cell Research Center; and National Institute for Biotechnology, Ben-Gurion University of the Negev, Beer-Sheva 8410501, Israel
| | - Rui Li
- The Center for Neuroinflammation and Experimental Therapeutics and the Department of Neurology, Hospital of the University of Pennsylvania, Philadelphia, PA, 19104, USA.
| | - Amit Bar-Or
- The Center for Neuroinflammation and Experimental Therapeutics and the Department of Neurology, Hospital of the University of Pennsylvania, Philadelphia, PA, 19104, USA.
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Kuiper JG, Overbeek JA, Foch C, Boutmy E, Sabidó M. Incidence of malignancies in patients with multiple sclerosis versus a healthy matched cohort: A population-based cohort study in the Netherlands using the PHARMO Database Network. J Clin Neurosci 2022; 103:49-55. [PMID: 35810606 DOI: 10.1016/j.jocn.2022.06.025] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Revised: 06/07/2022] [Accepted: 06/28/2022] [Indexed: 11/18/2022]
Abstract
This study estimated the incidence of malignancy in patients with multiple sclerosis (MS) versus a matched general population cohort in the Netherlands. Adults with a diagnosis of MS between 2006 and 2014 in the General Practitioner (GP) Database of the PHARMO Database Network with ≥ 1 year of patient history were matched to four non-MS individuals based on year of birth, sex, and GP practice. Patients were followed-up until the earliest malignancy diagnosis, death, or end of data collection. Age-adjusted incidence rates (IR) were measured overall and by cancer type. Standardized incidence ratios (SIR) were calculated as the ratio of stratification-specific IRs in the MS and non-MS cohorts. A total of 1,692 MS patients were matched to 6,768 non-MS patients. Age-adjusted IR of any malignancy, excluding non-melanoma skin cancer (n = 27), in the MS cohort was 48.3 (95%CI:30.1-66.5) per 10,000 PY. An increased incidence of any malignancy was observed in the MS cohort versus the non-MS cohort (SIR 1.8 [95%CI:1.1-2.5]). The most commonly observed malignancies in the MS cohort were breast cancer (n = 8; IR 20.4 [95%CI:6.3-34.5] per 10,000 PY) and melanoma (n = 6; IR 14.8 [95%CI:3.0-26.7] per 10,000 PY). The corresponding SIR observed between cohorts was 1.4 (95%CI:0.4-2.4) and 3.4 (95%CI:0.7-6.2), respectively. While the small increased incidence of malignancy in the MS cohort could be an artefact created by a different distribution of risk factors, an increased incidence of malignancy in MS patients in the Netherlands cannot be excluded.
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Affiliation(s)
- Josephina G Kuiper
- Research, PHARMO Institute for Drug Outcomes Research, Utrecht, The Netherlands.
| | - Jetty A Overbeek
- Research, PHARMO Institute for Drug Outcomes Research, Utrecht, The Netherlands
| | - Caroline Foch
- R&D Global Epidemiology, Merck Healthcare KGaA, Darmstadt, Germany
| | | | - Meritxell Sabidó
- R&D Global Epidemiology, Merck Healthcare KGaA, Darmstadt, Germany
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8
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Nørgaard M, Veres K, Sellebjerg FT, Svingel LS, Foch C, Boutmy E, Sabidó M, Magyari M. Incidence of malignancy in multiple sclerosis: A cohort study in the Danish Multiple Sclerosis Registry. Mult Scler J Exp Transl Clin 2021; 7:20552173211053939. [PMID: 34840804 PMCID: PMC8613897 DOI: 10.1177/20552173211053939] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
Background The association between multiple sclerosis and malignancy is controversial and a current appraisal is needed. Objective To determine the incidence of malignancy in patients with multiple sclerosis compared with the general population and in relation to disease-modifying therapy. Methods Patients with multiple sclerosis (1995 – 2015) were matched by birth year and sex to individuals without multiple sclerosis in the general population. Patients with multiple sclerosis initiating disease-modifying therapy were evaluated using landmark period analysis. Malignancy risk was assessed by incidence rates, incidence rate ratios, and standardised incidence ratios. Results The standardised incidence ratio of any malignancy (excluding non-melanoma skin cancer) in patients with multiple sclerosis (n = 10,557) was 0.96 (95% CI 0.88 – 1.06), and there was no increased incidence of specific malignancy types compared with the general population cohort (n = 103,761). At the 48-month landmark period, the age-adjusted incidence per 100,000 person-years of any malignancy (excluding non-melanoma skin cancer) was 436.7 (95% CI 361.0 – 512.4) in patients newly treated with immunomodulator-only and 675.1 (95% CI 130.4 – 1219.9) in patients newly treated with immunosuppressant-only. Conclusions There was no increased incidence of malignancy overall or by type in patients with multiple sclerosis compared neither with the general population nor in relation to disease-modifying therapy.
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Affiliation(s)
- Mette Nørgaard
- Department of Clinical Epidemiology, Aarhus University Hospital, Denmark
| | - Katalin Veres
- Department of Clinical Epidemiology, Aarhus University Hospital, Denmark
| | - Finn T Sellebjerg
- The Danish Multiple Sclerosis Center, Department of Neurology, Copenhagen University Hospital, Denmark
| | - Lise S Svingel
- Department of Clinical Epidemiology, Aarhus University Hospital, Denmark
| | | | | | | | - Melinda Magyari
- Danish Multiple Sclerosis Center, Department of Neurology, Copenhagen University Hospital, Rigshospitalet, Denmark
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9
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Jakimovski D, Eckert SP, Zivadinov R, Weinstock-Guttman B. Considering patient age when treating multiple sclerosis across the adult lifespan. Expert Rev Neurother 2021; 21:353-364. [PMID: 33595379 DOI: 10.1080/14737175.2021.1886082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Introduction: The successful development of anti-inflammatory disease-modifying treatments (DMT) significantly improved disease outcomes and longevity of persons with multiple sclerosis (pwMS). However, the shift toward an elderly MS population has resulted with new concerns regarding DMT efficacy and safety.Areas covered: This review summarizes the evidence of an age-based decrease in the efficacy of MS DMTs and increase in pharmacovigilance concerns. The age effects on pathophysiological MS processes, immunosenescence and its relevance to DMT selection or discontinuation are also reviewed. Lastly, the authors discuss the influence of age-associated comorbidities on DMT initiation and drug-induced events.Expert opinion: There is an age discrepancy between pwMS included in regulatory drug trials and an aging real-world MS population. Most trials demonstrate significantly diminished anti-inflammatory efficacy in patients older than 40 years old. Older age is associated with a greater risk for adverse events including serious infections. Age-associated comorbidities influence the risk-benefit analysis and sometimes cause patients to discontinue DMTs. Instead of chronological age cutoffs, therefore, studies should aim at promoting biologically-based age biomarkers.
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Affiliation(s)
- Dejan Jakimovski
- Buffalo Neuroimaging Analysis Center, Department of Neurology, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, State University of New York, Buffalo, NY, USA.,Jacobs Comprehensive MS Treatment and Research Center, Department of Neurology, Jacobs School of Medicine and Biomedical Sciences University at Buffalo, Buffalo, NY, USA
| | - Svetlana P Eckert
- Jacobs Comprehensive MS Treatment and Research Center, Department of Neurology, Jacobs School of Medicine and Biomedical Sciences University at Buffalo, Buffalo, NY, USA
| | - Robert Zivadinov
- Buffalo Neuroimaging Analysis Center, Department of Neurology, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, State University of New York, Buffalo, NY, USA.,Jacobs Comprehensive MS Treatment and Research Center, Department of Neurology, Jacobs School of Medicine and Biomedical Sciences University at Buffalo, Buffalo, NY, USA.,Center for Biomedical Imaging at Clinical Translational Science Institute, University at Buffalo, State University of New York, Buffalo, NY, USA
| | - Bianca Weinstock-Guttman
- Jacobs Comprehensive MS Treatment and Research Center, Department of Neurology, Jacobs School of Medicine and Biomedical Sciences University at Buffalo, Buffalo, NY, USA
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10
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Gómez-Moreno M, Sánchez-Seco VG, Moreno-García S, Cámara PS, Sabin-Muñoz J, Ayuso-Peralta L, Oreja-Guevara C, Díaz-Díaz J, Sainz de la Maza S, Costa-Frossard L, Pilo de la Fuente B, Aladro-Benito Y. Cancer diagnosis in a Spanish cohort of multiple sclerosis patients under dimethylfumarate treatment. Mult Scler Relat Disord 2021; 49:102747. [PMID: 33524928 DOI: 10.1016/j.msard.2021.102747] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Accepted: 01/08/2021] [Indexed: 10/22/2022]
Abstract
BACKGROUND Potential increase of cancer incidence is one of the main safety concerns of the disease-modifying therapies employed in Multiple Sclerosis (MS). OBJECTIVE Detailed description of patients who developed cancer among a prospective cohort of Spanish MS patients on dimethyl fumarate (DMF) treatment. METHODS We describe patients who developed cancer among a cohort of 886 MS patients on DMF treatment (2681 patient-years), with a median time of exposure of 39.5 months (IQR 23-51.5), who participated in a multicentre and prospective real-world study conducted in 16 Spanish National Health System hospitals from February 2014 to May 2019. Local researchers were periodically contacted by the investigation team to monitor safety issues. Cancer histories were collected from the medical records and the information was updated at July 30th 2020. RESULTS Eight Caucasian women developed cancer, which accounts for 0.9% and an accumulated malignancy rate of 298.39 cases per 100,000 patient-years of DMF exposure. At the time of cancer diagnosis, age was between 33 to 67 years and median time on DMF treatment 16.5 months (range 1-53). Two patients had familiar history of cancer. No specific cancer lines were found (breast cancer in 2 cases, thyroid in 3, urothelial carcinoma, cervix and a progression to leiomyosarcoma from a mitotically active leiomyoma). DMF was withdrawn during cancer treatment in 6 patients and reintroduced later. All cancers except one are in complete remission. The patient with leiomyosarcoma died by cancer progression. CONCLUSION A relationship between cancers and DMF is unlikely because the malignancy rate was similar to that of the age-and sex-matched general population, and because of the absence of specific tumour cell lines. Nevertheless, as with other immunosuppressive DMTs, clinicians treating MS should be aware of any potential cancer symptom and demand proper testing.
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Affiliation(s)
- Mayra Gómez-Moreno
- Department of Neurology, Hospital Universitario Infanta Leonor, Avenida Gran Vía del Este, 80, 28031 Madrid, Spain
| | - Victoria Galán Sánchez-Seco
- Multiple Sclerosis Unit, Department of Neurology, Hospital Universitario Doce de Octubre, Av. de Córdoba, s/n, 28041 Madrid, Spain
| | - Sara Moreno-García
- Multiple Sclerosis Unit, Department of Neurology, Hospital Universitario Doce de Octubre, Av. de Córdoba, s/n, 28041 Madrid, Spain
| | - Paula Salgado Cámara
- Multiple Sclerosis Unit, Department of Neurology, Hospital Universitario Doce de Octubre, Av. de Córdoba, s/n, 28041 Madrid, Spain
| | - Julia Sabin-Muñoz
- Multiple Sclerosis Unit, Department of Neurology, Hospital Universitario Puerta de Hierro, Calle Joaquín Rodrigo, 1, 28222 Majadahonda, Madrid, Spain
| | - Lucia Ayuso-Peralta
- Department of Neurology, Hospital Universitario Príncipe de Asturias, Carr. de Alcalá, s/n, 28805 Meco, Madrid, Spain
| | - Celia Oreja-Guevara
- Multiple Sclerosis Unit, Department of Neurology, Hospital Universitario Clínico San Carlos, Calle del Prof Martín Lagos, s/n, 28040 Madrid, Spain
| | - Judit Díaz-Díaz
- Multiple Sclerosis Unit, Department of Neurology, Hospital Universitario Clínico San Carlos, Calle del Prof Martín Lagos, s/n, 28040 Madrid, Spain
| | - Susana Sainz de la Maza
- Multiple Sclerosis Unit, Department of Neurology,Hospital Universitario Ramón y Cajal, M-607, km. 9, 100, 28034 Madrid, Spain
| | - Lucienne Costa-Frossard
- Multiple Sclerosis Unit, Department of Neurology,Hospital Universitario Ramón y Cajal, M-607, km. 9, 100, 28034 Madrid, Spain
| | - Belén Pilo de la Fuente
- Multiple Sclerosis Unit, Department of Neurology,Hospital Universitario Getafe, Carr. Madrid - Toledo, Km 12,500, 28905 Getafe, Madrid, Spain
| | - Yolanda Aladro-Benito
- Multiple Sclerosis Unit, Department of Neurology,Hospital Universitario Getafe, Carr. Madrid - Toledo, Km 12,500, 28905 Getafe, Madrid, Spain.
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11
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Marrie RA, Maxwell C, Mahar A, Ekuma O, McClintock C, Seitz D, Webber C, Groome PA. Cancer Incidence and Mortality Rates in Multiple Sclerosis: A Matched Cohort Study. Neurology 2020; 96:e501-e512. [PMID: 33239364 DOI: 10.1212/wnl.0000000000011219] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Accepted: 09/21/2020] [Indexed: 12/12/2022] Open
Abstract
OBJECTIVE To determine whether cancer risk differs in people with and without multiple sclerosis (MS), we compared incidence rates and cancer-specific mortality rates in MS and matched cohorts using population-based data sources. METHODS We conducted a retrospective matched cohort study using population-based administrative data from Manitoba and Ontario, Canada. We applied a validated case definition to identify MS cases, then selected 5 controls without MS matched on birth year, sex, and region. We linked these cohorts to cancer registries, and estimated incidence of breast, colorectal, and 13 other cancers. For breast and colorectal cancers, we constructed Cox models adjusting for age at the index date, area-level socioeconomic status, region, birth cohort year, and comorbidity. We pooled findings across provinces using meta-analysis. RESULTS We included 53,983 MS cases and 269,915 controls. Multivariable analyses showed no difference in breast cancer risk (pooled hazard ratio [HR] 0.92 [95% confidence interval (CI) 0.78-1.09]) or colorectal cancer risk (pooled HR 0.83 [95% CI 0.64-1.07]) between the cohorts. Mortality rates for breast and colorectal did not differ between cohorts. Bladder cancer incidence and mortality rates were higher among the MS cohort. Although the incidence of prostate, uterine, and CNS cancers differed between the MS and matched cohorts, mortality rates did not. CONCLUSION The incidence of breast and colorectal cancers does not differ between persons with and without MS; however, the incidence of bladder cancer is increased. Reported differences in the incidence of some cancers in the MS population may reflect ascertainment differences rather than true differences.
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Affiliation(s)
- Ruth Ann Marrie
- From the Department of Internal Medicine (R.A.M.), Department of Community Health Sciences (R.A.M., A.M.), and Manitoba Centre for Health Policy (A.M., O.E.), Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba; ICES (C. Maxwell), Toronto; Schools of Pharmacy and Public Health & Health Systems (C. Maxwell), University of Waterloo; ICES Queen's (A.M., C. McClintock, D.S., P.A.G.) and Division of Cancer Care and Epidemiology, Cancer Research Institute (P.A.G.), Queen's University, Kingston; Departments of Psychiatry and Community Health Sciences (D.S.), Cumming School of Medicine, University of Calgary; Ottawa Hospital Research Institute (C.W.); and Bruyère Research Institute (C.W.), Ottawa, Canada.
| | - Colleen Maxwell
- From the Department of Internal Medicine (R.A.M.), Department of Community Health Sciences (R.A.M., A.M.), and Manitoba Centre for Health Policy (A.M., O.E.), Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba; ICES (C. Maxwell), Toronto; Schools of Pharmacy and Public Health & Health Systems (C. Maxwell), University of Waterloo; ICES Queen's (A.M., C. McClintock, D.S., P.A.G.) and Division of Cancer Care and Epidemiology, Cancer Research Institute (P.A.G.), Queen's University, Kingston; Departments of Psychiatry and Community Health Sciences (D.S.), Cumming School of Medicine, University of Calgary; Ottawa Hospital Research Institute (C.W.); and Bruyère Research Institute (C.W.), Ottawa, Canada
| | - Alyson Mahar
- From the Department of Internal Medicine (R.A.M.), Department of Community Health Sciences (R.A.M., A.M.), and Manitoba Centre for Health Policy (A.M., O.E.), Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba; ICES (C. Maxwell), Toronto; Schools of Pharmacy and Public Health & Health Systems (C. Maxwell), University of Waterloo; ICES Queen's (A.M., C. McClintock, D.S., P.A.G.) and Division of Cancer Care and Epidemiology, Cancer Research Institute (P.A.G.), Queen's University, Kingston; Departments of Psychiatry and Community Health Sciences (D.S.), Cumming School of Medicine, University of Calgary; Ottawa Hospital Research Institute (C.W.); and Bruyère Research Institute (C.W.), Ottawa, Canada
| | - Okechukwu Ekuma
- From the Department of Internal Medicine (R.A.M.), Department of Community Health Sciences (R.A.M., A.M.), and Manitoba Centre for Health Policy (A.M., O.E.), Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba; ICES (C. Maxwell), Toronto; Schools of Pharmacy and Public Health & Health Systems (C. Maxwell), University of Waterloo; ICES Queen's (A.M., C. McClintock, D.S., P.A.G.) and Division of Cancer Care and Epidemiology, Cancer Research Institute (P.A.G.), Queen's University, Kingston; Departments of Psychiatry and Community Health Sciences (D.S.), Cumming School of Medicine, University of Calgary; Ottawa Hospital Research Institute (C.W.); and Bruyère Research Institute (C.W.), Ottawa, Canada
| | - Chad McClintock
- From the Department of Internal Medicine (R.A.M.), Department of Community Health Sciences (R.A.M., A.M.), and Manitoba Centre for Health Policy (A.M., O.E.), Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba; ICES (C. Maxwell), Toronto; Schools of Pharmacy and Public Health & Health Systems (C. Maxwell), University of Waterloo; ICES Queen's (A.M., C. McClintock, D.S., P.A.G.) and Division of Cancer Care and Epidemiology, Cancer Research Institute (P.A.G.), Queen's University, Kingston; Departments of Psychiatry and Community Health Sciences (D.S.), Cumming School of Medicine, University of Calgary; Ottawa Hospital Research Institute (C.W.); and Bruyère Research Institute (C.W.), Ottawa, Canada
| | - Dallas Seitz
- From the Department of Internal Medicine (R.A.M.), Department of Community Health Sciences (R.A.M., A.M.), and Manitoba Centre for Health Policy (A.M., O.E.), Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba; ICES (C. Maxwell), Toronto; Schools of Pharmacy and Public Health & Health Systems (C. Maxwell), University of Waterloo; ICES Queen's (A.M., C. McClintock, D.S., P.A.G.) and Division of Cancer Care and Epidemiology, Cancer Research Institute (P.A.G.), Queen's University, Kingston; Departments of Psychiatry and Community Health Sciences (D.S.), Cumming School of Medicine, University of Calgary; Ottawa Hospital Research Institute (C.W.); and Bruyère Research Institute (C.W.), Ottawa, Canada
| | - Colleen Webber
- From the Department of Internal Medicine (R.A.M.), Department of Community Health Sciences (R.A.M., A.M.), and Manitoba Centre for Health Policy (A.M., O.E.), Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba; ICES (C. Maxwell), Toronto; Schools of Pharmacy and Public Health & Health Systems (C. Maxwell), University of Waterloo; ICES Queen's (A.M., C. McClintock, D.S., P.A.G.) and Division of Cancer Care and Epidemiology, Cancer Research Institute (P.A.G.), Queen's University, Kingston; Departments of Psychiatry and Community Health Sciences (D.S.), Cumming School of Medicine, University of Calgary; Ottawa Hospital Research Institute (C.W.); and Bruyère Research Institute (C.W.), Ottawa, Canada
| | - Patti A Groome
- From the Department of Internal Medicine (R.A.M.), Department of Community Health Sciences (R.A.M., A.M.), and Manitoba Centre for Health Policy (A.M., O.E.), Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba; ICES (C. Maxwell), Toronto; Schools of Pharmacy and Public Health & Health Systems (C. Maxwell), University of Waterloo; ICES Queen's (A.M., C. McClintock, D.S., P.A.G.) and Division of Cancer Care and Epidemiology, Cancer Research Institute (P.A.G.), Queen's University, Kingston; Departments of Psychiatry and Community Health Sciences (D.S.), Cumming School of Medicine, University of Calgary; Ottawa Hospital Research Institute (C.W.); and Bruyère Research Institute (C.W.), Ottawa, Canada
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12
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Increasing cancer risk over calendar year in people with multiple sclerosis: a case-control study. J Neurol 2020; 268:817-824. [PMID: 33084939 PMCID: PMC7914231 DOI: 10.1007/s00415-020-10170-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Revised: 08/12/2020] [Accepted: 08/14/2020] [Indexed: 11/25/2022]
Abstract
Background Data on cancer prevalence and incidence in multiple sclerosis (MS) patients are controversial. This study is aimed at estimating cancer risk in MS patients. Methods Nested case–control study using data collected between 01/01/1987 and 28/02/2016 from the United Kingdom Clinical Practice Research Datalink. Cancer diagnoses after first MS code (index date) was counted in 10,204 MS patients and 39,448 controls matched by sex, age, general practitioner, and registration year. Cancer rates were compared using multivariable Cox regression models. Ethics approval was not required. Results Cancer was reported in 433 (4.41%) MS patients and 2014 (5.31%) controls after index date. Cancer risk was associated with gender (HR for female = 0.88, 95% CI = 0.81–0.96, p = 0.004), age at index date (HR = 1.06, 95% CI = 1.06–1.07, p < 0.001), and index year (HR = 1.01, 95% CI = 1.00–1.02, p = 0.016), but not with MS status (HR = 0.95, 95% CI = 0.86–1.05, p = 0.323). A significant interaction between MS status and index year was found (HR = 1.02, 95% CI = 1.00–1.04, p = 0.022). Cancer risk was positively associated with index year among MS patients (HR = 1.03, 95% CI = 1.01–1.05; p = 0.010), but not controls (HR = 1.01, 95% CI = 0.99–1.02; p = 0.144). MS patients compared to controls had no increased risk for any specific cancer type. Conclusions Overall cancer risk was similar in multiple sclerosis patients and matched controls. The frequency of cancer diagnoses has increased over time among MS patients but not in controls. Electronic supplementary material The online version of this article (10.1007/s00415-020-10170-5) contains supplementary material, which is available to authorized users.
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13
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Magyari M, Sorensen PS. Comorbidity in Multiple Sclerosis. Front Neurol 2020; 11:851. [PMID: 32973654 PMCID: PMC7473304 DOI: 10.3389/fneur.2020.00851] [Citation(s) in RCA: 88] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2019] [Accepted: 07/07/2020] [Indexed: 01/09/2023] Open
Abstract
Comorbidities in patients with multiple sclerosis (MS) has become an area of increasing interest in the recent years. A comorbidity is defined as any additional disease that coexists in an individual with a given index disease and that is not an obvious complication of the index disease. The aim of this review is to describe the current evidence regarding the range of comorbidities in the population with MS reported in different countries and the current knowledge about the influence of comorbidities on the clinical features and therapeutic challenges in MS. Certain comorbidities are more prevalent in people with MS such as depression, anxiety, cerebro- and cardiovascular diseases, and certain autoimmune disorders such as diabetes, thyroid disease, and inflammatory bowel disease. A previous perception of a trend toward a lower overall risk of cancer in patients with MS appears to be challenged, but there is no evidence on any higher occurrence of malignancies in the population with MS. Comorbidities may modify the clinical presentation of MS, and have implications for treatment choice, adherence, and outcome. Several comorbid conditions are associated with increased disability progression, including diabetes, hypertension, and chronic obstructive pulmonary disease. Comorbidities are common in MS from the time of diagnosis and may account for some of the heterogeneity observed in MS, including diagnostic delay, clinical presentation, degree of disability progression, rate of health care utilization, working ability, employment status, and quality of life. Coexisting diseases and polypharmacy increase the complexity of patient management and poses major challenges, particularly with the increasing number of immunosuppressive disease-modifying therapies.
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Affiliation(s)
- Melinda Magyari
- Department of Neurology, Danish Multiple Sclerosis Center, Copenhagen University Hospital, Rigshospitalet, Denmark.,Department of Neurology, The Danish Multiple Sclerosis Registry, Copenhagen University Hospital, Rigshospitalet, Denmark
| | - Per Soelberg Sorensen
- Department of Neurology, Danish Multiple Sclerosis Center, Copenhagen University Hospital, Rigshospitalet, Denmark
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14
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Hauer L, Perneczky J, Sellner J. A global view of comorbidity in multiple sclerosis: a systematic review with a focus on regional differences, methodology, and clinical implications. J Neurol 2020; 268:4066-4077. [PMID: 32719975 PMCID: PMC8505322 DOI: 10.1007/s00415-020-10107-y] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2020] [Revised: 07/18/2020] [Accepted: 07/21/2020] [Indexed: 12/24/2022]
Abstract
Multiple sclerosis (MS) is a chronic autoimmune disorder of the central nervous system which is associated with numerous comorbidities. These include cardiovascular disease, psychiatric and neurologic disturbances, restless leg syndrome, migraine, cancer, autoimmune diseases, and metabolic disorders. Comorbid disease is an important consideration for clinicians treating patients with MS; early presentation of comorbidities can obscure or delay MS diagnosis, as well as significantly impacting the disease course. Improved understanding of comorbidities and their emergence in MS populations is important for improving the quality of life and optimizing treatment for patients. Therefore, we evaluated published studies reporting epidemiologic data on comorbidities and their associated impact on disease progression in patients with MS (PwMS). The prevalence of neurologic, cardiovascular, metabolic, and autoimmune comorbidities was elevated in PwMS in general, and furthermore, this adversely affected a broad range of outcomes. Compared with PwMS, cancer rates in people without MS or the general population were lower, which should prompt further studies into the mechanisms of both diseases. Studies were under-represented in many regions owing to the latitudinal gradient of MS and possible underfunding of studies.
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Affiliation(s)
- Larissa Hauer
- Department of Psychiatry, Psychotherapy and Psychosomatic Medicine, Christian Doppler Medical Center, Paracelsus Medical University, Salzburg, Austria
| | - Julian Perneczky
- Department of Neurology, Landesklinikum Mistelbach-Gänserndorf, Liechtensteinstrase 67, 2130, Mistelbach, Austria
| | - Johann Sellner
- Department of Neurology, Landesklinikum Mistelbach-Gänserndorf, Liechtensteinstrase 67, 2130, Mistelbach, Austria. .,Department of Neurology, Klinikum rechts der Isar, Technische Universität München, Munich, Germany. .,Department of Neurology, Christian Doppler Medical Center, Paracelsus Medical University, Salzburg, Austria.
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15
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Sirbu AM, Sirbu CA, Eftimie L, Soare AM, Ghinescu MC, Ionita-Radu F. Multiple sclerosis, human herpesvirus 4 and thyroid collision tumor: A case report. Exp Ther Med 2020; 20:3458-3461. [PMID: 32905114 DOI: 10.3892/etm.2020.8975] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Accepted: 06/29/2020] [Indexed: 12/19/2022] Open
Abstract
The role of interferon β-1b (IFNβ-1b), used for multiple sclerosis (MS) therapy, in cancer occurrence is uncertain. There is evidence supporting the role of human herpesvirus 4 [Epstein-Barr virus (EBV)] in thyroid cancer and MS. Simultaneous occurrence of papillary and medullary carcinomas is rare, and its association with MS in a young woman raises questions. A 46-year-old female patient was diagnosed with relapsing-remitting multiple sclerosis in 2008. In 2018, cervical MRI detected a thyroid nodule with right cervical adenopathy. Her thyroid function was normal, but increased calcitonin levels were found (70.53 pg/ml; normal value: <9.82 pg/ml). EBV serology tested positive. Paraclinical studies ruled out multiple endocrine neoplasia syndrome. Whole thyroid resection with whole cervical lymph node dissection was performed. To our knowledge, this is the first case that describes an association between MS and thyroid collision tumors. Histological examination ascertained both papillary and medullary thyroid cancer. After surgery, the calcitonin level normalized, and the patient received a therapeutic dose of iodine-131. IFNβ-1b therapy was discontinued. The coexistence of thyroid cancers in MS patients could be explained by immune-mediated inflammation. Although EBV is not the only agent responsible for the development of MS or thyroid cancers, it could be considered a contributory factor in our case. Further research on EBV involvement in the occurrence of simultaneous immune pathologies in various organs is needed to confirm these data.
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Affiliation(s)
- Anca Maria Sirbu
- Department of Endocrinology, 'C.I. Parhon' National Institute of Endocrinology, 011863 Bucharest, Romania
| | - Carmen Adella Sirbu
- Department of Neurology, Faculty of Medicine, 'Titu Maiorescu' University, 031593 Bucharest, Romania.,Department of Neurology, 'Carol Davila' Central Military Emergency University Hospital, 010242 Bucharest, Romania
| | - Lucian Eftimie
- Department of Pathology, 'Carol Davila' University of Medicine and Pharmacy, 050474 Bucharest, Romania.,Department of Pathology, 'Carol Davila' Central Military Emergency University Hospital, 010242 Bucharest, Romania.,Center for Microscopy-Microanalysis and Information Processing, Politehnica University of Bucharest, 77206 Bucharest, Romania
| | - Angela Mirela Soare
- Department of Neurology, 'Witting' Clinical Hospital, 010243 Bucharest, Romania
| | - Minerva Claudia Ghinescu
- Department of Neurology, Faculty of Medicine, 'Titu Maiorescu' University, 031593 Bucharest, Romania
| | - Florentina Ionita-Radu
- Department of Neurology, Faculty of Medicine, 'Titu Maiorescu' University, 031593 Bucharest, Romania.,Department of Gastroenterology, 'Carol Davila' Central Military Emergency University Hospital, 010242 Bucharest, Romania
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16
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Melamed E, Lee MW. Multiple Sclerosis and Cancer: The Ying-Yang Effect of Disease Modifying Therapies. Front Immunol 2020; 10:2954. [PMID: 31998289 PMCID: PMC6965059 DOI: 10.3389/fimmu.2019.02954] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Accepted: 12/02/2019] [Indexed: 12/17/2022] Open
Abstract
Over the past two decades, the field of multiple sclerosis (MS) has been transformed by the rapidly expanding arsenal of new disease modifying therapies (DMTs). Current DMTs for MS aim to modulate innate and adaptive immune responses toward a less inflammatory phenotype. Since the immune system is also critical for identifying and eliminating malignant cells, immunosuppression from DMTs may predictably increase the risk of cancer development in MS patients. Compared with healthy controls, patients with autoimmune conditions, such as MS, may already have a higher risk of developing certain malignancies and this risk may further be magnified by DMT treatments. For those patients who develop both MS and cancer, these comorbid presentations create a challenge for clinicians on how to therapeutically address management of cancer in the context of MS autoimmunity. As there are currently no accepted guidelines for managing MS patients with prior history of or newly developed malignancy, we undertook this review to evaluate the molecular mechanisms of current DMTs and their potential for instigating and treating cancer in patients living with MS.
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Affiliation(s)
- Esther Melamed
- Department of Neurology, Dell Medical School, Austin, TX, United States
| | - Michael William Lee
- Department of Oncology, Department of Medical Education, Dell Medical School, Austin, TX, United States
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17
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Hongell K, Kurki S, Sumelahti ML, Soilu-Hänninen M. Risk of cancer among Finnish multiple sclerosis patients. Mult Scler Relat Disord 2019; 35:221-227. [DOI: 10.1016/j.msard.2019.08.005] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2019] [Revised: 07/29/2019] [Accepted: 08/04/2019] [Indexed: 12/12/2022]
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18
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Grytten N, Myhr KM, Celius EG, Benjaminsen E, Kampman M, Midgard R, Vatne A, Aarseth JH, Riise T, Torkildsen Ø. Risk of cancer among multiple sclerosis patients, siblings, and population controls: A prospective cohort study. Mult Scler 2019; 26:1569-1580. [DOI: 10.1177/1352458519877244] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Background: Risk of cancer in multiple sclerosis (MS) patients compared to their siblings is unknown. Objective: The objective was to prospectively investigate the risk of cancer among MS patients compared to siblings without MS and to population controls. Methods: We retrieved data on MS patients born between 1930 and 1979 from the Norwegian Multiple Sclerosis Registry and population studies and on cancer diagnosis from the Cancer Registry of Norway. We used adjusted Cox proportional hazard regression to estimate cancer risk among 6883 MS patients, 8918 siblings without MS, and 37,919 population controls. Results: During 65 years of follow-up, cancer risk among MS patients was higher than that among population controls (hazard ratio (HR) = 1.14, 95% confidence interval (CI): 1.05–1.23) in respiratory organs (HR = 1.66, 95% CI: 1.26–2.19), urinary organs (HR = 1.51, 95% CI: 1.12–2.04), and the central nervous system (HR = 1.52, 95% CI: 1.11–2. 09). Siblings had higher risk of hematological cancers compared with MS patients (HR = 1.82, 95% CI: 1.21–2.73) and population controls (HR = 1.72, 95% CI: 1.36–2.18). Conclusion: MS patients were associated with increased risk of cancer compared to population controls. Siblings had increased risk of hematological cancer. This indicates that MS and hematological cancer could share a common etiology.
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Affiliation(s)
- Nina Grytten
- Norwegian Multiple Sclerosis Competence Centre, Department of Neurology, Haukeland University Hospital, Bergen, Norway
| | - Kjell-Morten Myhr
- Department of Clinical Medicine, University of Bergen, Bergen, Norway/Department of Neurology, Haukeland University Hospital, Bergen, Norway
| | - Elisabeth G Celius
- Department of Neurology, Oslo University Hospital, Ullevål, Oslo, Norway/Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | | | - Margitta Kampman
- Department of Neurology, University Hospital of North Norway, Tromsø, Norway
| | - Rune Midgard
- Department of Neurology, Molde Hospital, Molde, Norway/Norwegian University of Science and Technology, Trondheim, Norway
| | - Anita Vatne
- Department of Rehabilitation, Hospital of Southern Norway, Kristiansand, Norway
| | - Jan H Aarseth
- Norwegian MS Registry and Biobank, Haukeland University Hospital, Bergen, Norway
| | - Trond Riise
- Norwegian Multiple Sclerosis Competence Centre, Department of Neurology, Haukeland University Hospital, Bergen, Norway/Department of Global Public Health and Primary Care, University of Bergen, Bergen, Norway
| | - Øivind Torkildsen
- Norwegian Multiple Sclerosis Competence Centre, Department of Neurology, Haukeland University Hospital, Bergen, Norway/Department of Clinical Medicine, University of Bergen, Bergen, Norway/Department of Neurology, Haukeland University Hospital, Bergen, Norway
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19
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D'Amico E, Chisari CG, Arena S, Zanghì A, Toscano S, Lo Fermo S, Maimone D, Castaing M, Sciacca S, Zappia M, Patti F. Cancer Risk and Multiple Sclerosis: Evidence From a Large Italian Cohort. Front Neurol 2019; 10:337. [PMID: 31024431 PMCID: PMC6469363 DOI: 10.3389/fneur.2019.00337] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2019] [Accepted: 03/19/2019] [Indexed: 12/17/2022] Open
Abstract
Introduction: The complexity of understanding cancer risk in MS is increased by inconsistencies in study design, and the lack of age-, sex-, and ethnicity-specific risk estimates. Aims of our study were to estimate the incidence of cancers in the MS population of Catania (Italy) and to evaluate the impact of disease-modifying treatments (DMTs) in cancer risk. Materials and Methods: We screened 2,730 PwMS according to the MS criteria of Mc Donald 2010 referring to MS center of Catania in the period between 2003 and 2013. We matched database of MS patients with the Integrated Cancer of Catania-Messina-Siracusae-Enna. We calculated age and sex specific standardized incidence ratios (SIR) and the relative risk (RR) of developing cancer in MS patients treated with at least two different DMTs compared to who received one or no treatment. Results: Out of 2,730, 1,180 MS patients (67.1% females; mean age 41.2 ± 12.9) were enrolled. We found 36 cancers. Global SIR was 1.18 (CI95% 0.78–1.58), with a significantly higher risk in men with a range age of 20 to 50 years [2.84; (CI95% 1.59–4.09)] and in women over 50 years [1.82 (CI95% 1.08–2.55)]. RR of developing cancer was 1.99 (CI95% 1.14–3.45) in MS patients switching one DMT and 3.38 (CI95% 1.83–6.22) in who switched at least twice. Discussion: Our results demonstrated that cancer risk was not increased in our MS population; but age and sex different distribution may partly drive cancer risk. Higher cancer risk in MS patients switching more than two DMTs should take into account in treatment decision making.
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Affiliation(s)
- Emanuele D'Amico
- Section of Neurosciences, Department "GF Ingrassia", University of Catania, Catania, Italy
| | - Clara G Chisari
- Section of Neurosciences, Department "GF Ingrassia", University of Catania, Catania, Italy
| | - Sebastiano Arena
- Section of Neurosciences, Department "GF Ingrassia", University of Catania, Catania, Italy
| | - Aurora Zanghì
- Section of Neurosciences, Department "GF Ingrassia", University of Catania, Catania, Italy
| | - Simona Toscano
- Section of Neurosciences, Department "GF Ingrassia", University of Catania, Catania, Italy
| | - Salvatore Lo Fermo
- Section of Neurosciences, Department "GF Ingrassia", University of Catania, Catania, Italy
| | | | - Marine Castaing
- Department of Hygiene, University of Catania, Catania, Italy
| | | | - Mario Zappia
- Section of Neurosciences, Department "GF Ingrassia", University of Catania, Catania, Italy
| | - Francesco Patti
- Section of Neurosciences, Department "GF Ingrassia", University of Catania, Catania, Italy
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20
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Nørgaard M, Veres K, Didden E, Wormser D, Magyari M. Multiple sclerosis and cancer incidence: A Danish nationwide cohort study. Mult Scler Relat Disord 2019; 28:81-85. [DOI: 10.1016/j.msard.2018.12.014] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2018] [Revised: 11/20/2018] [Accepted: 12/13/2018] [Indexed: 10/27/2022]
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21
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Boyko AN. Cancers and multiple sclerosis: risk of comorbidity and influence of disease modifying therapy. Zh Nevrol Psikhiatr Im S S Korsakova 2019; 119:86-93. [DOI: 10.17116/jnevro20191192286] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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22
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Lebrun C, Rocher F. Cancer Risk in Patients with Multiple Sclerosis: Potential Impact of Disease-Modifying Drugs. CNS Drugs 2018; 32:939-949. [PMID: 30143945 DOI: 10.1007/s40263-018-0564-y] [Citation(s) in RCA: 61] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
In the 1990s, the first disease-modifying therapies (DMTs) for multiple sclerosis (MS) were injectable immunomodulatory (IM) drugs, including four different interferon-β preparations and glatiramer acetate. Since 2000, more than 15 immunosuppressant (IS) drugs have been used, with a more or less specific action on inflammation. These include monoclonal antibodies targeting CTL4, the integrin receptor, the interleukin (IL)-2 receptor, CD19, CD20, CD52, and the sphingosine 1 phosphate family. The association between MS and cancer has long been investigated but has led to conflicting results. No studies have reported an increased risk of cancer after long-term exposure to IM. Several reports suggest an increase in cancer risk among MS patients treated with IS such as mitoxantrone, azathioprine and cyclophosphamide. Because of their action on the immune system, and due to a lack of available long-term data, a special warning of the potential risk of cancer accompanies the use of recent IS such as cladribine, fingolimod, natalizumab or alemtuzumab. In most studies, factors such as diet, smoking, solar radiation, and hormone therapy, all of which influence cancer risk, have not been considered. For fingolimod, natalizumab, alemtuzumab, dimethyl fumarate, teriflunomide, daclizumab and ocrelizumab, risk management plans outlined by regulatory agencies are mandatory. They allow prospective detection of some red flags, in particular those for the increased risk of cancer. We review the current evidence behind the increased risk of malignancy in MS patients receiving DMTs, and provide an overview of the DMTs that are currently in use and those in clinical trials. The known risks and benefits of these therapies will be considered.
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Affiliation(s)
- Christine Lebrun
- Centre de Ressources et Compétences Sclérose En Plaques, Neurologie, Université Nice Côte d'Azur, CHU Pasteur 2, 30 voie Romaine, 06002, Nice, France.
| | - Fanny Rocher
- Centre Régional de Pharmacovigilance, CHU Cimiez, Nice, France
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23
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Pazhouhandeh M, Sahraian MA, Siadat SD, Fateh A, Vaziri F, Tabrizi F, Ajorloo F, Arshadi AK, Fatemi E, Piri Gavgani S, Mahboudi F, Rahimi Jamnani F. A systems medicine approach reveals disordered immune system and lipid metabolism in multiple sclerosis patients. Clin Exp Immunol 2018; 192:18-32. [PMID: 29194580 DOI: 10.1111/cei.13087] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2017] [Revised: 11/19/2017] [Accepted: 11/20/2017] [Indexed: 02/06/2023] Open
Abstract
Identification of autoimmune processes and introduction of new autoantigens involved in the pathogenesis of multiple sclerosis (MS) can be helpful in the design of new drugs to prevent unresponsiveness and side effects in patients. To find significant changes, we evaluated the autoantibody repertoires in newly diagnosed relapsing-remitting MS patients (NDP) and those receiving disease-modifying therapy (RP). Through a random peptide phage library, a panel of NDP- and RP-specific peptides was identified, producing two protein data sets visualized using Gephi, based on protein--protein interactions in the STRING database. The top modules of NDP and RP networks were assessed using Enrichr. Based on the findings, a set of proteins, including ATP binding cassette subfamily C member 1 (ABCC1), neurogenic locus notch homologue protein 1 (NOTCH1), hepatocyte growth factor receptor (MET), RAF proto-oncogene serine/threonine-protein kinase (RAF1) and proto-oncogene vav (VAV1) was found in NDP and was involved in over-represented terms correlated with cell-mediated immunity and cancer. In contrast, transcription factor RelB (RELB), histone acetyltransferase p300 (EP300), acetyl-CoA carboxylase 2 (ACACB), adiponectin (ADIPOQ) and phosphoenolpyruvate carboxykinase 2 mitochondrial (PCK2) had major contributions to viral infections and lipid metabolism as significant events in RP. According to these findings, further research is required to demonstrate the pathogenic roles of such proteins and autoantibodies targeting them in MS and to develop therapeutic agents which can ameliorate disease severity.
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Affiliation(s)
- M Pazhouhandeh
- Human Antibody Lab, Innovation Center, Pasteur Institute of Iran, Tehran, Iran
| | - M-A Sahraian
- MS Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - S D Siadat
- Human Antibody Lab, Innovation Center, Pasteur Institute of Iran, Tehran, Iran.,Department of Mycobacteriology and Pulmonary Research, Microbiology Research Center, Pasteur Institute of Iran, Tehran, Iran
| | - A Fateh
- Human Antibody Lab, Innovation Center, Pasteur Institute of Iran, Tehran, Iran.,Department of Mycobacteriology and Pulmonary Research, Microbiology Research Center, Pasteur Institute of Iran, Tehran, Iran
| | - F Vaziri
- Human Antibody Lab, Innovation Center, Pasteur Institute of Iran, Tehran, Iran.,Department of Mycobacteriology and Pulmonary Research, Microbiology Research Center, Pasteur Institute of Iran, Tehran, Iran
| | - F Tabrizi
- Human Antibody Lab, Innovation Center, Pasteur Institute of Iran, Tehran, Iran
| | - F Ajorloo
- Human Antibody Lab, Innovation Center, Pasteur Institute of Iran, Tehran, Iran.,Department of Biology, Faculty of Science, Islamic Azad University, East Tehran Branch, Tehran, Iran
| | - A K Arshadi
- Human Antibody Lab, Innovation Center, Pasteur Institute of Iran, Tehran, Iran
| | - E Fatemi
- Biotechnology Research Center, Pasteur Institute of Iran, Tehran, Iran
| | - S Piri Gavgani
- Human Antibody Lab, Innovation Center, Pasteur Institute of Iran, Tehran, Iran
| | - F Mahboudi
- Biotechnology Research Center, Pasteur Institute of Iran, Tehran, Iran
| | - F Rahimi Jamnani
- Human Antibody Lab, Innovation Center, Pasteur Institute of Iran, Tehran, Iran.,Department of Mycobacteriology and Pulmonary Research, Microbiology Research Center, Pasteur Institute of Iran, Tehran, Iran
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