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Andreozzi V, Capuano R, Scannapieco S, Barra F, d'Arco B, Giordano C, Caterino M, De Marca U, Di Filippo F, Di Gregorio M, Barone P. Bariatric surgery and dimethyl fumarate-induced lymphopenia in patients with multiple sclerosis. Neurol Sci 2024; 45:2807-2810. [PMID: 38150132 DOI: 10.1007/s10072-023-07283-w] [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: 09/22/2023] [Accepted: 12/19/2023] [Indexed: 12/28/2023]
Abstract
INTRODUCTION Lymphopenia is a known side effect of dimethyl fumarate (DMF), a disease-modifying therapy (DMT) for patients with multiple sclerosis (pwMS). A body mass index ≥ 30 kg/m2 has been identified as a protective factor; however, no data are available on lymphopenia in pwMS undergoing to weight loss due to bariatric surgery. METHODS We described two pwMS with history of bariatric surgery who started DMF as DMT. RESULTS The two pwMS experienced persistent lymphopenia during DMF-treatment, which was resolved after its discontinuation. CONCLUSIONS Several mechanisms might modify DMF pharmacokinetic profiles after bariatric surgery and its bioavailability. Absolute lymphocyte count should be monitored in pwMS treated with DMF and history of bariatric surgery and weight loss.
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Affiliation(s)
- Valentina Andreozzi
- Neurology Unit, University Hospital "San Giovanni di Dio E Ruggi d'Aragona", Largo Città di Ippocrate, 84100, Salerno, Italy
| | - Rocco Capuano
- Neurology Unit, University Hospital "San Giovanni di Dio E Ruggi d'Aragona", Largo Città di Ippocrate, 84100, Salerno, Italy.
| | - Sara Scannapieco
- Neurology Unit, University Hospital "San Giovanni di Dio E Ruggi d'Aragona", Largo Città di Ippocrate, 84100, Salerno, Italy
| | - Francesca Barra
- Neurology Unit, University Hospital "San Giovanni di Dio E Ruggi d'Aragona", Largo Città di Ippocrate, 84100, Salerno, Italy
| | - Beatrice d'Arco
- Neurology Unit, University Hospital "San Giovanni di Dio E Ruggi d'Aragona", Largo Città di Ippocrate, 84100, Salerno, Italy
| | - Caterina Giordano
- Neurology Unit, University Hospital "San Giovanni di Dio E Ruggi d'Aragona", Largo Città di Ippocrate, 84100, Salerno, Italy
| | - Miriam Caterino
- Neurology Unit, University Hospital "San Giovanni di Dio E Ruggi d'Aragona", Largo Città di Ippocrate, 84100, Salerno, Italy
| | - Umberto De Marca
- Neurology Unit, University Hospital "San Giovanni di Dio E Ruggi d'Aragona", Largo Città di Ippocrate, 84100, Salerno, Italy
| | - Federico Di Filippo
- Neurology Unit, University Hospital "San Giovanni di Dio E Ruggi d'Aragona", Largo Città di Ippocrate, 84100, Salerno, Italy
| | - Maria Di Gregorio
- Neurology Unit, University Hospital "San Giovanni di Dio E Ruggi d'Aragona", Largo Città di Ippocrate, 84100, Salerno, Italy
| | - Paolo Barone
- Neurology Unit, University Hospital "San Giovanni di Dio E Ruggi d'Aragona", Largo Città di Ippocrate, 84100, Salerno, Italy
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Canto-Gomes J, Boleixa D, Teixeira C, Martins da Silva A, González-Suárez I, Cerqueira J, Correia-Neves M, Nobrega C. Distinct disease-modifying therapies are associated with different blood immune cell profiles in people with relapsing-remitting multiple sclerosis. Int Immunopharmacol 2024; 131:111826. [PMID: 38461632 DOI: 10.1016/j.intimp.2024.111826] [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: 12/01/2023] [Revised: 03/05/2024] [Accepted: 03/06/2024] [Indexed: 03/12/2024]
Abstract
Disease modifying therapies (DMTs) used for treating people with relapsing-remitting multiple sclerosis (pwRRMS) target the immune system by different mechanisms of action. However, there is a lack of a comprehensive assessment of their effects on the immune system in comparison to treatment-naïve pwRRMS. Herein, we evaluated the numbers of circulating B cells, CD4+ and CD8+ T cells, regulatory T cells (Tregs), natural killer (NK) cells and NKT cells, and their subsets, in pwRRMS who were treatment-naïve or treated with different DMTs. Compared to treatment-naïve pwRRMS, common and divergent effects on immune system cells were observed on pwRRMS treated with different DMTs, with no consistent pattern across all therapies in any of the cell populations analysed. PwRRMS treated with fingolimod, dimethyl fumarate (DMF), or alemtuzumab have reduced numbers of CD4+ and CD8+ T cells, as well as Treg subsets, with fingolimod causing the most pronounced decrease in T cell subsets. In contrast, teriflunomide and interferon (IFN) β have minimal impact on T cells, and natalizumab marginally increases the number of memory T cells in the blood. The effect of DMTs on the B cell, NKT and NK cell subsets is highly variable with alemtuzumab inducing a strong increase in the number of the most immature NK cells and its subsets. This study comprehensively evaluates the magnitude of the effect of different DMTs on blood immune cells providing a better understanding of therapy outcome. Furthermore, the lack of a discernible pattern in the effects of DMTs on blood immune cells suggests that multiple immune cells can independently modulate the disease.
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Affiliation(s)
- João Canto-Gomes
- Life and Health Sciences Research Institute, School of Medicine, University of Minho, Braga, Portugal; ICVS/3B's, PT Government Associate Laboratory, Braga, Guimarães, Portugal
| | - Daniela Boleixa
- Porto University Hospital Center, Porto, Portugal; Multidisciplinary Unit for Biomedical Research (UMIB) - ICBAS, University of Porto, Porto, Portugal
| | - Catarina Teixeira
- Porto University Hospital Center, Porto, Portugal; Multidisciplinary Unit for Biomedical Research (UMIB) - ICBAS, University of Porto, Porto, Portugal
| | - Ana Martins da Silva
- Porto University Hospital Center, Porto, Portugal; Multidisciplinary Unit for Biomedical Research (UMIB) - ICBAS, University of Porto, Porto, Portugal
| | - Inés González-Suárez
- Álvaro Cunqueiro Hospital, Vigo, Spain; University Hospital Complex of Vigo, Vigo, Spain
| | - João Cerqueira
- Life and Health Sciences Research Institute, School of Medicine, University of Minho, Braga, Portugal; ICVS/3B's, PT Government Associate Laboratory, Braga, Guimarães, Portugal; Hospital of Braga, Braga, Portugal; Clinical Academic Centre, Hospital of Braga, Braga, Portugal
| | - Margarida Correia-Neves
- Life and Health Sciences Research Institute, School of Medicine, University of Minho, Braga, Portugal; ICVS/3B's, PT Government Associate Laboratory, Braga, Guimarães, Portugal; Division of Infectious Diseases and Center for Molecular Medicine, Department of Medicine Solna, Karolinska Institutet, 17176 Stockholm, Sweden
| | - Claudia Nobrega
- Life and Health Sciences Research Institute, School of Medicine, University of Minho, Braga, Portugal; ICVS/3B's, PT Government Associate Laboratory, Braga, Guimarães, Portugal.
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Baeva ME, Metz LM, Greenfield J, Camara-Lemarroy CR. Simple Parameters from Complete Blood Count Predict Lymphopenia, Adverse Effects and Efficacy in People with MS treated with Dimethyl Fumarate. Mult Scler Relat Disord 2023; 74:104699. [PMID: 37031552 DOI: 10.1016/j.msard.2023.104699] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2022] [Revised: 03/28/2023] [Accepted: 04/02/2023] [Indexed: 04/05/2023]
Abstract
BACKGROUND Dimethyl fumarate (DMF) is a first-line oral therapy for relapsing-remitting multiple sclerosis (RRMS). This retrospective study aims to determine the utility of routine complete blood counts (CBC) in predicting lymphopenia, adverse effects and efficacy in a real-world clinical setting. METHODS The Calgary Multiple Sclerosis (MS) Clinic manages over 1800 people with MS on disease-modifying therapies (DMT). Data of patients with relapsing-remitting MS (pwMS) who initiated DMF between July 1, 2013 and December 31, 2014 were included. Patients were followed for one year. DMT use is carefully monitored and pwMS need a screening CBC and have regular CBCs done at follow-up. Demographic, clinical, MRI and relapse information are collected prospectively in a clinic database. We analyzed CBCs at baseline and month 3. RESULTS We identified 139 pwMS in the study period who started DMF. Median follow-up time on-drug was 12 (0.16-12) months. In our study, 15.8% of pwMS developed lymphopenia grade 2 or higher. Baseline lymphocyte counts and older age were significant predictors of lymphopenia. Higher baseline eosinophil counts predicted flushing/gastrointestinal adverse effects, and higher baseline monocyte counts were predictive of breakthrough disease activity. Neutrophil and platelet to lymphocyte ratios, markers that have been associated with overall mortality in the general population, were increased at month 3. CONCLUSIONS Routinely obtained CBCs during the screening and monitoring of people with MS starting DMF offer clinically useful information and generate interesting hypotheses. Age and baseline lymphocyte counts are reinforced as clinically useful predictors of lymphopenia. Our novel findings that baseline eosinophil and monocyte counts could offer insights into usual adverse effects and efficacy, respectively, should be further investigated as a potentially new set of biomarkers.
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Patel V, Joharapurkar A, Kshirsagar S, Patel M, Savsani H, Patel A, Ranvir R, Jain M. Repurposing dimethyl fumarate for gastric ulcer and ulcerative colitis: evidence of local efficacy without systemic side effect. MEDICINE IN DRUG DISCOVERY 2022. [DOI: 10.1016/j.medidd.2022.100142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022] Open
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Ravn J, Jensen HB, Kant M, Andersen PB, Góra MK, Sejbæk T. Risk factors for development of lymphopenia in dimethyl fumarate-treated patients with multiple sclerosis. Mult Scler Relat Disord 2022; 67:104081. [DOI: 10.1016/j.msard.2022.104081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Revised: 04/30/2022] [Accepted: 07/28/2022] [Indexed: 10/31/2022]
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Borrelli S, Mathias A, Goff GL, Pasquier RD, Théaudin M, Pot C. Delayed and recurrent dimethyl fumarate induced-lymphopenia in patients with Multiple sclerosis. Mult Scler Relat Disord 2022; 63:103887. [DOI: 10.1016/j.msard.2022.103887] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Revised: 04/11/2022] [Accepted: 05/13/2022] [Indexed: 11/24/2022]
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Dinoto A, Sartori A, Cheli M, Pasquin F, Baldini S, Bratina A, Bosco A, Manganotti P. Lymphopenia during treatment with dimethyl fumarate in patients with multiple sclerosis: Prevalence, predicting factors and clinical outcomes. Mult Scler Relat Disord 2022; 57:103357. [PMID: 35158466 DOI: 10.1016/j.msard.2021.103357] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Revised: 10/06/2021] [Accepted: 10/28/2021] [Indexed: 01/01/2023]
Abstract
BACKGROUND Lymphopenia is a common side effect of treatment with dimethyl fumarate (DMF) in patients with multiple sclerosis (PwMS). Prevalence and predictive factors of this side effect are still uncertain, because literature has provided discrepant results and it is still a matter of debate if lymphopenia is associated with a better treatment outcome. METHODS We retrospectively recruited PwMS treated for at least one month with DMF and collected clinical, demographic data and absolute lymphocyte count (ALC) during follow-up. Lymphopenia was graded according to CTCAE. Patients according to the grade in lymphopenia (all grades) and severe lymphopenia (grade II-IV). To evaluate predictors of lymphopenia, we compared characteristics of patients with/without lymphopenia and patients with/without severe lymphopenia. A logistic binary regression was performed to elucidate any predictive factor of lymphopenia and severe lymphopenia. Area under the curve (AUC) was calculated to evaluate sensibility and specificity of predictors. We analyzed treatment outcome with NEDA-3 status at 1- and 2-years. RESULTS 98 of 105 patients treated with DMF were included. 46.9% developed lymphopenia, 27.6% severe lymphopenia. Lymphopenia was associated with basal ALC (p<0.001, AUC=0.786), treatment duration (p = 0.01, AUC=0.685),% of reduction at third month (p = 0.001, AUC=0.616) Severe lymphopenia was associated with basal ALC (p = 0.003, AUC=0.750).NEDA-3 status at 1-year (n = 66) and at 2-year (n = 44) did not differ in patients with/without lymphopenia (p = 0.059; p = 0.583) or with/without severe lymphopenia (p = 1.02; p = 0.169). CONCLUSION Lymphopenia is a common side effect of DMF and basal ALC predicts its development. Lymphopenia is not associated with the achievement of NEDA-3 status.
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Affiliation(s)
- Alessandro Dinoto
- Neurology Unit, Department of Medical, Surgical and Health Sciences, Cattinara University Hospital, ASUGI, University of Trieste, Strada di Fiume,447, 34149, Trieste, Italy.
| | - Arianna Sartori
- Neurology Unit, Department of Medical, Surgical and Health Sciences, Cattinara University Hospital, ASUGI, University of Trieste, Strada di Fiume,447, 34149, Trieste, Italy
| | - Marta Cheli
- Neurology Unit, Department of Medical, Surgical and Health Sciences, Cattinara University Hospital, ASUGI, University of Trieste, Strada di Fiume,447, 34149, Trieste, Italy
| | - Fulvio Pasquin
- Neurology Unit, Department of Medical, Surgical and Health Sciences, Cattinara University Hospital, ASUGI, University of Trieste, Strada di Fiume,447, 34149, Trieste, Italy
| | - Sara Baldini
- Neurology Unit, Department of Medical, Surgical and Health Sciences, Cattinara University Hospital, ASUGI, University of Trieste, Strada di Fiume,447, 34149, Trieste, Italy
| | - Alessio Bratina
- Neurology Unit, Department of Medical, Surgical and Health Sciences, Cattinara University Hospital, ASUGI, University of Trieste, Strada di Fiume,447, 34149, Trieste, Italy
| | - Antonio Bosco
- Neurology Unit, Department of Medical, Surgical and Health Sciences, Cattinara University Hospital, ASUGI, University of Trieste, Strada di Fiume,447, 34149, Trieste, Italy
| | - Paolo Manganotti
- Neurology Unit, Department of Medical, Surgical and Health Sciences, Cattinara University Hospital, ASUGI, University of Trieste, Strada di Fiume,447, 34149, Trieste, Italy
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Sainzde la Maza S, Muñoz JS, Pilode la Fuente B, Thuissard I, Andreu‑Vázquez C, Sánchez-Seco VG, Salgado-Cámara P, Costa-Frossard L, Monreal E, Ayuso-Peralta L, García-Vasco L, García‑Domínguez JM, Martínez-Ginés ML, Fernández CM, Díaz-Díaz J, Oreja-Guevara C, Gómez‑Moreno M, Martín H, Rubio-Flores L, Blasco MR, Villar-Guimerans LM, Aladro Y. Early predictive risk factors for dimethyl fumarate-associated lymphopenia in patients with multiple sclerosis. Mult Scler Relat Disord 2022; 59:103669. [DOI: 10.1016/j.msard.2022.103669] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Revised: 01/16/2022] [Accepted: 02/03/2022] [Indexed: 11/16/2022]
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Ahmadi A, Fallah Vastani Z, Abounoori M, Azizi M, Labani‐Motlagh A, Mami S, Mami S. The role of
NK
and
NKT
cells in the pathogenesis and improvement of multiple sclerosis following
disease‐modifying
therapies. Health Sci Rep 2022; 5:e489. [PMID: 35229046 PMCID: PMC8865072 DOI: 10.1002/hsr2.489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Revised: 11/09/2021] [Accepted: 12/07/2021] [Indexed: 11/07/2022] Open
Abstract
Background Multiple sclerosis (MS) is an autoimmune inflammatory disease of the central nervous system (CNS) that T cells become autoreactive by recognizing CNS antigens. Both innate and adaptive immune systems are involved in the pathogenesis of MS. In recent years, the impact of innate immune cells on MS pathogenesis has received more attention. CD56bright NK cells, as an immunoregulatory subset of NK cells, can increase the production of cytokines that modulate adaptive immune responses, whereas CD56dim NK cells are more active in cytolysis functions. These two main subsets of NK cells may have different effects on the onset or progression of MS. Invariant NKT (iNKT) cells are other immune cells involved in the control of autoimmune diseases; however, variant NKT (vNKT) cells, despite limited information, could play a role in MS remission via an immunoregulatory pathway. Aim We aimed to evaluate the influence of MS therapeutic agents on NK and NKT cells and NK cell subtypes. Materials and Methods The possible mechanism of each MS therapeutic agent has been presented here, focusing on the effects of different disease‐modifying therapies on the number of NK and NKT subtypes. Results Expansion of CD56bright NK cells, reduction in the CD56dim cells, and enhancement in NKT cells are the more important innate immune cells alterations following the disease‐modifying therapies. Conclusion Expansion of CD56bright NK cells or reduction in the CD56dim cells has been associated with a successful response to different treatments in MS. iNKT and vNKT cells could have beneficial effects on MS improving. It seems that they are enhanced due to some of MS drugs, leading to disease improvement. However, a reduction in the number of NKT cells could be due to the adverse effects of some of MS drugs on the bone marrow.
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Affiliation(s)
- Alireza Ahmadi
- Student Research Committee, Department of Laboratory Sciences, Faculty of Allied Medical Sciences Ilam University of Medical Sciences Ilam Iran
| | - Zahra Fallah Vastani
- Student Research Committee, Department of Laboratory Sciences, Faculty of Allied Medical Sciences Ilam University of Medical Sciences Ilam Iran
| | - Mahdi Abounoori
- Student Research Committee, School of Medicine Mazandaran University of Medical Sciences Sari Iran
| | - Mahdieh Azizi
- Department of Immunology, School of Medicine Isfahan University of Medical Sciences Isfahan Iran
| | - Alireza Labani‐Motlagh
- Department of Pulmonary Immunology The University of Texas Health Science Center at Tyler Texas USA
| | - Sajad Mami
- Department of laboratory and clinical science, faculty of veterinary medicine Ilam University Ilam Iran
| | - Sanaz Mami
- Department of Immunology, School of Medicine Ilam University of Medical Sciences Ilam Iran
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Wrona D, Majkutewicz I, Świątek G, Dunacka J, Grembecka B, Glac W. Dimethyl Fumarate as the Peripheral Blood Inflammatory Mediators Inhibitor in Prevention of Streptozotocin-Induced Neuroinflammation in Aged Rats. J Inflamm Res 2022; 15:33-52. [PMID: 35027835 PMCID: PMC8749052 DOI: 10.2147/jir.s342280] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Accepted: 11/23/2021] [Indexed: 12/17/2022] Open
Abstract
Purpose Intracerebroventricular-(ICV)-streptozotocin-(STZ)-induced neuroinflammation is a model of Alzheimer’s disease (AD) compatible with the inflammation hypothesis of ageing (“inflammaging” state). Previously, we observed age-dependent (young vs aged) dimethyl fumarate (DMF)-induced anti-inflammatory and neuroprotective effects in the brain along with improvement in cognitive functions in rats with the ICV-STZ-induced model of AD. To evaluate whether DMF reduces neuroinflammation based on the peripheral inflammatory response inhibition, we determined peripheral inflammatory mediators in young and aged rats with the ICV-STZ-induced AD pathology following DMF therapy. Materials and Methods Young (4-month-old) and aged (22-month-old) rats were fed with 0.4% DMF rat chow for 21 consecutive days after ICV-STZ (3 mg/ventricle) injections. After behavioral testing, blood and spleens were collected to determine the numbers of leukocytes (WBC), lymphocytes and their subpopulations, haematological parameters, the concanavalin (Con)-A-induced production and plasma concentration of interferon (IFN)-γ, interleukin (IL)-6, IL-10 and corticosterone (COR). Results Age-dependent anti-inflammatory effect of the DMF treatment in rats with ICV-STZ injections manifested as decreased peripheral WBC and lymphocyte numbers, including TCD3+CD4+CD8−, TCD3+CD4−CD8+, B (CD45RA+) and NK (161a+), in aged rats. Furthermore, DMF lowered the blood and spleen lymphocyte production of pro-inflammatory IFN-γ and IL-6 in young and aged rats, whereas it enhanced the plasma level of anti-inflammatory IL-10 and lymphocyte’s ability to produce it in aged rats only. In parallel to changes in peripheral WBC numbers in the model of AD, DMF decreased the red blood cell number, haemoglobin concentration, haematocrit and mean platelet volume in aged, but not young, rats. In contrast to controls, DMF did not influence the COR response in STZ groups. Conclusion Besides preventing neuroinflammation, DMF acts on the pro-/anti-inflammatory balance in the periphery and causes an anti-inflammatory shift in T lymphocytes which could contribute to DMF’s therapeutic effects in the ICV-STZ-induced model of AD, in particular, in aged rats.
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Affiliation(s)
- Danuta Wrona
- Department of Animal and Human Physiology, Faculty of Biology, University of Gdansk, Gdansk, 80-308, Poland
| | - Irena Majkutewicz
- Department of Animal and Human Physiology, Faculty of Biology, University of Gdansk, Gdansk, 80-308, Poland
| | - Grzegorz Świątek
- Department of Animal and Human Physiology, Faculty of Biology, University of Gdansk, Gdansk, 80-308, Poland
| | - Joanna Dunacka
- Department of Animal and Human Physiology, Faculty of Biology, University of Gdansk, Gdansk, 80-308, Poland
| | - Beata Grembecka
- Department of Animal and Human Physiology, Faculty of Biology, University of Gdansk, Gdansk, 80-308, Poland
| | - Wojciech Glac
- Department of Animal and Human Physiology, Faculty of Biology, University of Gdansk, Gdansk, 80-308, Poland
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NKT and NKT-like Cells in Autoimmune Neuroinflammatory Diseases-Multiple Sclerosis, Myasthenia Gravis and Guillain-Barre Syndrome. Int J Mol Sci 2021; 22:ijms22179520. [PMID: 34502425 PMCID: PMC8431671 DOI: 10.3390/ijms22179520] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Revised: 08/27/2021] [Accepted: 08/27/2021] [Indexed: 12/14/2022] Open
Abstract
NKT cells comprise three subsets—type I (invariant, iNKT), type II, and NKT-like cells, of which iNKT cells are the most studied subset. They are capable of rapid cytokine production after the initial stimulus, thus they may be important for polarisation of Th cells. Due to this, they may be an important cell subset in autoimmune diseases. In the current review, we are summarising results of NKT-oriented studies in major neurological autoimmune diseases—multiple sclerosis, myasthenia gravis, and Guillain-Barre syndrome and their corresponding animal models.
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Anagnostouli MC, Velonakis G, Dalakas MC. Aggressive Herpes Zoster in Young Patients With Multiple Sclerosis Under Dimethyl Fumarate: Significance of CD8 + and Natural Killer Cells. NEUROLOGY-NEUROIMMUNOLOGY & NEUROINFLAMMATION 2021; 8:8/4/e1017. [PMID: 34049996 PMCID: PMC8168045 DOI: 10.1212/nxi.0000000000001017] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/02/2021] [Accepted: 03/22/2021] [Indexed: 11/15/2022]
Affiliation(s)
- Maria C Anagnostouli
- From the Multiple Sclerosis and Demyelinating Diseases Unit and Immunogenetics Laboratory (M.C.A.), 1st Department of Neurology, Medical School, National and Kapodistrian University of Athens, NKUA, Aeginition University Hospital, Athens, Greece; Research Unit of Radiology (G.V.), 2nd Department of Radiology, Medical School, National and Kapodistrian University of Athens, Greece; Neuroimmunology Unit (M.C.D.), Department of Pathophysiology, National and Kapodistrian University of Athens, Greece; and Department of Neurology (M.C.D.), Thomas Jefferson University, Philadelphia, PA.
| | - Georgios Velonakis
- From the Multiple Sclerosis and Demyelinating Diseases Unit and Immunogenetics Laboratory (M.C.A.), 1st Department of Neurology, Medical School, National and Kapodistrian University of Athens, NKUA, Aeginition University Hospital, Athens, Greece; Research Unit of Radiology (G.V.), 2nd Department of Radiology, Medical School, National and Kapodistrian University of Athens, Greece; Neuroimmunology Unit (M.C.D.), Department of Pathophysiology, National and Kapodistrian University of Athens, Greece; and Department of Neurology (M.C.D.), Thomas Jefferson University, Philadelphia, PA
| | - Marinos C Dalakas
- From the Multiple Sclerosis and Demyelinating Diseases Unit and Immunogenetics Laboratory (M.C.A.), 1st Department of Neurology, Medical School, National and Kapodistrian University of Athens, NKUA, Aeginition University Hospital, Athens, Greece; Research Unit of Radiology (G.V.), 2nd Department of Radiology, Medical School, National and Kapodistrian University of Athens, Greece; Neuroimmunology Unit (M.C.D.), Department of Pathophysiology, National and Kapodistrian University of Athens, Greece; and Department of Neurology (M.C.D.), Thomas Jefferson University, Philadelphia, PA
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Lee CH, Jiang B, Nakhaei-Nejad M, Barilla D, Blevins G, Giuliani F. Cross-sectional analysis of peripheral blood mononuclear cells in lymphopenic and non-lymphopenic relapsing-remitting multiple sclerosis patients treated with dimethyl fumarate. Mult Scler Relat Disord 2021; 52:103003. [PMID: 34118574 DOI: 10.1016/j.msard.2021.103003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Revised: 03/24/2021] [Accepted: 04/29/2021] [Indexed: 11/18/2022]
Abstract
BACKGROUND Relapsing-remitting multiple sclerosis (RRMS) is an autoimmune disorder of the central nervous system. Dimethyl Fumarate is a disease-modifying medication used to treat RRMS patients that can induce lymphopenia. We aimed to immunophenotype peripheral blood mononuclear cells (PBMC) in RRMS patients cross-sectionally and examine the characteristics and modifications of lymphopenia over time. METHODS Characterization of PBMC was done by multiparametric flow cytometry. Patients had been on treatment for up to 4 years and were grouped into lymphopenic (DMF-L) and non-lymphopenic (DMF-N) patients. RESULTS Lymphopenia affected the cell population changes over time, with other patient characteristics (gender, age, and previous treatment status) also having significant effects. In both lymphopenic and non-lymphopenic patients, PBMC percentages were reduced over time. While overall T and B cells frequencies were not affected, males, older patients and untreated patients had significant changes in B cell subpopulations over time. CD4+ to CD8+T cell ratio increased significantly in lymphopenic patients over time. CD4-CD8-T cell population was similarly reduced in both lymphopenic and non-lymphopenic patients, over time. While the monocyte and NK overall populations were not changed, non-classical monocyte subpopulation decreased over time in lymphopenic patients. We also found CD56-CD16+ and CD56-CD16- NK cells frequencies changed over time in lymphopenic patients. Immune populations showed correlations with clinical outcomes measured by EDSS and relapse rate. Analysis of the overall immunophenotype showed that, while groups divided by other patient characteristics showed differences, the lymphopenia status overrode these differences, resulting in similar immunophenotype within DMF-L. CONCLUSIONS Our data provide evidence that under the same therapy, lymphopenia affects how the immunophenotype changes over time and can override the differences associated with other patient characteristics and possibly mask other significant changes in the immune profile of patients.
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Affiliation(s)
- Chieh-Hsin Lee
- Division of Neurology, Department of Medicine, University of Alberta, Alberta Canada T6G 2M8, Edmonton, Canada
| | - Bei Jiang
- Department of Mathematical and Statistical Sciences, University of Alberta, Edmonton, Canada
| | - Maryam Nakhaei-Nejad
- Division of Neurology, Department of Medicine, University of Alberta, Alberta Canada T6G 2M8, Edmonton, Canada
| | - David Barilla
- Division of Neurology, Department of Medicine, University of Alberta, Alberta Canada T6G 2M8, Edmonton, Canada
| | - Gregg Blevins
- Division of Neurology, Department of Medicine, University of Alberta, Alberta Canada T6G 2M8, Edmonton, Canada
| | - Fabrizio Giuliani
- Division of Neurology, Department of Medicine, University of Alberta, Alberta Canada T6G 2M8, Edmonton, Canada.
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Lower lymphocyte counts and older age are associated with reduced multiple sclerosis disease activity during dimethyl fumarate treatment. Mult Scler Relat Disord 2021; 49:102781. [PMID: 33524927 DOI: 10.1016/j.msard.2021.102781] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2020] [Revised: 01/12/2021] [Accepted: 01/16/2021] [Indexed: 11/20/2022]
Abstract
BACKGROUND delayed-release dimethyl fumarate (DMF) is a disease modifying therapy for relapsing-remitting multiple sclerosis (MS) with antioxidant and anti-inflammatory properties. The drug causes lymphocyte count reduction, which can lead to lymphopenia development during treatment. This is an important safety issue, due to infectious risk, mainly progressive multifocal leukoencephalopathy (PML). If the lymphocyte count influences the response to treatment is still a matter of debate, as there are contrasting contrasting data in the literature. Considering this, we aimed to identify DMF induced lymphopenia risk factors and to evaluate lymphopenia impact on MS disease activity in a real world setting. METHODS a retrospective study on 135 MS patients receiving DMF with a mean treatment duration of 32.3±15.9 months was performed. Baseline and follow-up demographic, clinical, magnetic resonance imaging (MRI) and laboratory data were collected. RESULTS 44 patients (32.6%) developed lymphopenia, with 11 (8.1%) grade 1, 23 (17.0%) grade 2 and 10 (7.4 %) grade 3. Older age and lower basal absolute lymphocyte count were found to be associated with lymphopenia development on a binary regression model (p<0.001 and p=0.009). When compared with non lymphopenic+lymphopenia grade 1 patients, those experiencing lymphopenia grade 2+3 had longer disease activity free survival (p<0.001), fewer clinical relapses (p=0.005) and lower MRI disease activity (p≤0.001). On Cox regression model, older age and lymphopenia grade 2+3 were found to be protective factors against disease activity (HR=0.966; 95% C.I.=0.942-0.992; p=0.009 for age; HR=0.137; 95% C.I.=0.043-0.439; p=0.001 for lymphopenia grade 2+3) and MRI disease activity (HR=0.968; 95% C.I.=0.941-0.997; p=0.030 for age; HR=0.142; 95% C.I.=0.034-0.591; p=0.007 for lymphopenia grade 2+3). Only lymphopenia grade 2+3 was found to be a predictor of clinical relapses (HR=0.970; 95% C.I.=0.936-1.005; p=0.095 for age; HR=0.115; 95% C.I.=0.016-0.854; p=0.034 for lymphopenia grade 2+3), with a protective effect. CONCLUSION older age and lower basal lymphocyte count were found to be associated with lymphopenia development. Lymphopenia grade 2+3 and older age could be protective against clinical and radiologic disease activity during DMF treatment.
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Rodríguez-Regal A, Ramos-Rúa L, Anibarro-García L, Lopez Real AM, Amigo-Jorrín MDC. Effectiveness of Dimethyl Fumarate in Real-World Clinical Practice and Strategy to Minimize Adverse Effects and Use of Healthcare Resources. Patient Prefer Adherence 2021; 15:149-158. [PMID: 33542621 PMCID: PMC7853639 DOI: 10.2147/ppa.s284425] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Accepted: 01/14/2021] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Dimethyl fumarate (DMF) has shown efficacy in reducing relapse rates in patients with multiple sclerosis (MS). However, associated adverse effects (AE) such as gastrointestinal (GI) AE, flushing and lymphopenia are the main cause of treatment discontinuation. The aim of this study was to evaluate the effectiveness of DMF, and to assess strategies to reduce treatment discontinuation rates in routine clinical practice. PATIENTS AND METHODS Ninety patients started DMF treatment between August 2015 and February 2020. Prior to DMF therapy, patients received written information regarding treatment and the management of AE, along with medical prescriptions. Clinical and analytical data were collected at clinical visits performed at least 6-monthly, and disease progression was evaluated by brain magnetic resonance imaging (MRI). RESULTS Prior to DMF, 78.7% of patients had an annualized relapse rate (ARR) of 1.07 (range: 1-3) and median Expanded Disability Status Scale (EDSS) score of 1.0 (range: 0-2). At final follow-up, ARR and median EDSS scores were significantly reduced to 0.09 (range: 0-2; p< 0.001) and 0 (range: 0-1.625; p< 0.001), respectively. Just over one quarter of patients with brain MRI (26.8% of 71 patients) showed improvement in disease activity based on MRI evaluation. Lymphopenia was associated with previous treatment lines (p=0.042) and longer disease duration (p=0.032). A total of twelve patients abandoned DMF treatment, mainly due to lymphopenia (7.9%), but none did it because of GI AE or flushing. CONCLUSION In our series, DMF showed high clinical and radiological efficacy. Providing patients with complete information prior to treatment on the management of associated AE helps them to better understand what to expect, improves tolerance and reduces clinical and telephone consultations, which may help to reduce the use and cost of healthcare resources.
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Affiliation(s)
- Ana Rodríguez-Regal
- Department of Neurology, Complejo Hospitalario Universitario de Pontevedra (CHUP), Pontevedra, Spain
| | - Laura Ramos-Rúa
- Department of Neurology, Hospital Público de Monforte, Lugo, Spain
| | - Luis Anibarro-García
- Department of Internal Medicine, Complejo Hospitalario Universitario de Pontevedra (CHUP), Pontevedra, Spain
| | - Ana María Lopez Real
- Department OfNeurology, Complejo Hospitalario Universitario de Coruña (CHUAC), La Coruña, Spain
| | - María del Campo Amigo-Jorrín
- Department of Neurology, Complejo Hospitalario Universitario de Pontevedra (CHUP), Pontevedra, Spain
- Correspondence: María del Campo Amigo-Jorrín Complejo Hospitalario Universitario de Pontevedra (CHUP), Avda. Eduardo Pondal 4-6G, Pontevedra36003, Spain, Tel +34 619583752 Email
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Laroni A, Schiavetti I, Sormani MP, Uccelli A. COVID-19 in patients with multiple sclerosis undergoing disease-modifying treatments. Mult Scler 2020; 27:2126-2136. [PMID: 33205695 DOI: 10.1177/1352458520971817] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The CoronaVirus Disease 19 (COVID-19) pandemic is a threat of particular concern for people affected by chronic immune-mediated diseases, such as multiple sclerosis (MS), who are often treated with immunomodulatory and immunosuppressive drugs, which may increase the risk of infections in general. At the beginning of the COVID-19 pandemic, empirical guidelines on how to manage treatments for immune-mediated diseases, including MS, were released. Subsequently, the first clinical pictures and data sets have been published, describing the outcomes of COVID-19 in patients with MS treated with immunomodulatory and immunosuppressive drugs. Here we will review available information on how infections by human coronaviruses affect the immune system in untreated subjects and in patients affected by MS treated with drugs which modulate the immune system.
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Affiliation(s)
- Alice Laroni
- Department of Neuroscience, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health, University of Genova, Genova, Italy/IRCCS Ospedale Policlinico San Martino, Genova, Italy
| | - Irene Schiavetti
- Department of Health Sciences, Section of Biostatistics, University of Genova, Italy
| | - Maria Pia Sormani
- IRCCS Ospedale Policlinico San Martino, Genova, Italy/Department of Health Sciences, Section of Biostatistics, University of Genova, Italy
| | - Antonio Uccelli
- Department of Neuroscience, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health, University of Genova, Genova, Italy/IRCCS Ospedale Policlinico San Martino, Genova, Italy
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Dello Russo C, Scott KA, Pirmohamed M. Dimethyl fumarate induced lymphopenia in multiple sclerosis: A review of the literature. Pharmacol Ther 2020; 219:107710. [PMID: 33091427 DOI: 10.1016/j.pharmthera.2020.107710] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/15/2020] [Indexed: 12/13/2022]
Abstract
Dimethyl fumarate (DMF) is a first line medication for multiple sclerosis. It has a favourable safety profile, however, there is concern regarding the occurrence of moderate-severe and sustained lymphopenia and the associated risk of progressive multifocal leukoencephalopathy. We carried out an extensive literature review to understand the molecular mechanisms underlying this adverse reaction. Dynamic changes in certain components of the immune system are likely to be important for the therapeutic effects of DMF, including depletion of memory T cells and decrease in activated T cells together with expansion of naïve T cells. Similar modifications were reported for the B cell components. CD8+ T cells are particularly susceptible to DMF-induced cell death, with marked reductions observed in lymphopenic subjects. The reasons underlying such increased sensitivity are not known, nor it is known how expansion of other lymphocyte subsets occurs. Understanding the molecular mechanisms underlying DMF action is challenging: in vivo DMF is rapidly metabolized to monomethyl fumarate (MMF), a less potent immunomodulator in vitro. Pharmacokinetics indicate that MMF is the main active species in vivo. However, the relative importance of DMF and MMF in toxicity remains unclear, with evidence presented in favour of either of the compounds as toxic species. Pharmacogenetic studies to identify genetic predictors of DMF-induced lymphopenia are limited, with inconclusive results. A role of the gut microbiome in the pharmacological effects of DMF is emerging. It is clear that further investigations are necessary to understand the mechanisms of DMF-induced lymphopenia and devise preventive strategies. Periodic monitoring of absolute lymphocyte counts, currently performed in clinical practise, allows for the early detection of lymphopenia as a risk-minimization strategy.
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Affiliation(s)
- Cinzia Dello Russo
- MRC Centre for Drug Safety Science and Wolfson Centre for Personalised Medicine, Institute of Systems, Molecular and Integrative Biology (ISMIB), University of Liverpool, Liverpool, UK; Dept. of Healthcare Surveillance and Bioethics, Section of Pharmacology, Fondazione Policlinico Universitario A. Gemelli IRCCS - Università Cattolica del Sacro Cuore, Rome, Italy
| | - Kathryn Anne Scott
- MRC Centre for Drug Safety Science and Wolfson Centre for Personalised Medicine, Institute of Systems, Molecular and Integrative Biology (ISMIB), University of Liverpool, Liverpool, UK
| | - Munir Pirmohamed
- MRC Centre for Drug Safety Science and Wolfson Centre for Personalised Medicine, Institute of Systems, Molecular and Integrative Biology (ISMIB), University of Liverpool, Liverpool, UK.
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Hematological Alterations Related to Treatment with Teriflunomide and Dimethyl Fumarate in Multiple Sclerosis. NEUROSCI 2020. [DOI: 10.3390/neurosci1010003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
The exact mechanism of action of different modifying treatments in the evolutionary course of multiple sclerosis (MS) remains unknown, but it is assumed that they act upon the cells involved in acquired immunity. One effect of these treatments is the development of lymphopenia, which carries inherent safety risks. This study was conducted to understand the alterations that teriflunomide (TERI) and dimethyl fumarate (DMF) exert upon white blood cells in a series of patients with MS. This study included a total of 99 patients; 44 treated with DMF and 55 patients treated with TERI. Blood counts were evaluated at baseline and every 6 months in order to track the absolute leukocyte, lymphocyte, and neutrophil counts. Twelve months after starting treatment, we observed a significant decrease in leukocytes (21.1%), lymphocytes (39.1%), and neutrophils (10%) in the DMF group. In the TERI group, leukocytes decreased by 11.1%, lymphocytes by 8.1%, and neutrophils by 15.7%. Both TERI and DMF produced a significant decrease in leukocytes during the first year of treatment and this was mainly related with a decrease in neutrophils in the TERI group and a decrease in lymphocytes in the DMF group.
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Rodríguez-Martín E, Nieto-Gañán I, Hernández-Breijo B, Sobrino C, García-Hoz C, Bachiller J, Martínez-Feito A, Navarro-Compán V, Lapuente-Suanzes P, Bonilla G, Pascual-Salcedo D, Roy G, Jurado T, Nozal P, Vázquez-Díaz M, Balsa A, Villar LM, Plasencia-Rodríguez C. Blood Lymphocyte Subsets for Early Identification of Non-Remission to TNF Inhibitors in Rheumatoid Arthritis. Front Immunol 2020; 11:1913. [PMID: 32973793 PMCID: PMC7481468 DOI: 10.3389/fimmu.2020.01913] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Accepted: 07/16/2020] [Indexed: 12/21/2022] Open
Abstract
Background: TNF inhibitors (TNFis) are widely used for the treatment of rheumatoid arthritis (RA), although the response rates to this therapy in patients with RA remains heterogeneous and < 50% achieve remission (REM). Objective: To analyze baseline peripheral blood leukocytes profiles in order to search for biomarkers identifying patients who will most likely not achieve REM under TNFi treatment. Methods: A prospective bi-center pilot study including 98 RA patients treated with TNFis and followed-up during 6 months. Patients were classified according to DAS28 as follows: those who achieved REM (DAS28 ≤ 2.6) and those who did not (DAS28 > 2.6) at 6 months after starting TNFis. These rates were also assessed by simplified disease activity index (SDAI ≤ 3.3 and SDAI > 3.3, respectively). Peripheral blood immune cells were studied by flow cytometry before treatment initiation. Results: At 6 months, 61 or 80% of patients did not achieve REM by DAS28 or SDAI, respectively. Basal leukocyte profiles differed between REM vs. non-REM patients. Non-REM patients showed lower percentages of total and naïve B cells at baseline than REM subjects. A B lymphocyte/CD4+ lymphocyte ratio (BL/CD4 ratio) <0.2 clearly associated with a higher probability of non-REM status based on DAS28 at 6 months (OR = 9.2, p = 0.006). These data were confirmed when patient response was evaluated by SDAI index. Conclusion: Our results strongly suggest that BL/CD4 ratio could be considered as a useful biomarker for the early identification of non-remitters to TNFi in clinical practice.
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Affiliation(s)
| | - Israel Nieto-Gañán
- Department of Immunology, IRYCIS, Hospital Universitario Ramón y Cajal, Madrid, Spain
| | | | - Cristina Sobrino
- Department of Rheumatology, IRYCIS, Hospital Universitario Ramón y Cajal, Madrid, Spain
| | - Carlota García-Hoz
- Department of Immunology, IRYCIS, Hospital Universitario Ramón y Cajal, Madrid, Spain
| | - Javier Bachiller
- Department of Rheumatology, IRYCIS, Hospital Universitario Ramón y Cajal, Madrid, Spain
| | - Ana Martínez-Feito
- Immuno-Rheumatology Research Group, IdiPaz Hospital Universitario La Paz, Madrid, Spain
| | | | | | - Gema Bonilla
- Immuno-Rheumatology Research Group, IdiPaz Hospital Universitario La Paz, Madrid, Spain
| | - Dora Pascual-Salcedo
- Immuno-Rheumatology Research Group, IdiPaz Hospital Universitario La Paz, Madrid, Spain
| | - Garbiñe Roy
- Department of Immunology, IRYCIS, Hospital Universitario Ramón y Cajal, Madrid, Spain
| | - Teresa Jurado
- Immuno-Rheumatology Research Group, IdiPaz Hospital Universitario La Paz, Madrid, Spain
| | - Pilar Nozal
- Immuno-Rheumatology Research Group, IdiPaz Hospital Universitario La Paz, Madrid, Spain
| | - Mónica Vázquez-Díaz
- Department of Rheumatology, IRYCIS, Hospital Universitario Ramón y Cajal, Madrid, Spain
| | - Alejandro Balsa
- Immuno-Rheumatology Research Group, IdiPaz Hospital Universitario La Paz, Madrid, Spain
| | - Luisa M Villar
- Department of Immunology, IRYCIS, Hospital Universitario Ramón y Cajal, Madrid, Spain
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Valencia-Sanchez C, Carter JL. An evaluation of dimethyl fumarate for the treatment of relapsing remitting multiple sclerosis. Expert Opin Pharmacother 2020; 21:1399-1405. [PMID: 32543241 DOI: 10.1080/14656566.2020.1763304] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
INTRODUCTION In recent years there has been a dramatic rise in available disease-modifying therapies for the treatment of relapsing multiple sclerosis (MS). Dimethyl fumarate (DMF) is an oral drug approved by the FDA for relapsing MS with unique immunomodulatory and cytoprotective effects. AREAS COVERED Herein, the authors provide the reader with a review of the literature obtained via a PubMed database search and provide their expert opinion on the use of DMF in clinical practice. The article details DMF's mechanism of action, long-term data on efficacy, tolerability and safety. EXPERT OPINION Since approval, growing experience with DMF in clinical practice demonstrates a combination of efficacy, ease of administration along with an acceptable safety profile. The authors believe that DMF is a valuable long-term treatment option in patients with relapsing MS. However, long-term follow up studies are needed to provide further data on progressive multifocal leukoencephalopathy (PML) risk stratification for MS patients on treatment with DMF. Indeed, despite the strong association with lymphopenia, not all patients with DMF associated PML experienced prolonged overall lymphopenia, suggesting that additional predictive metrics are still needed.
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Affiliation(s)
- Cristina Valencia-Sanchez
- Department of Neurology, Mayo Clinic Arizona, Mayo Foundation for Medical Education and Research , Scottsdale, AZ, USA
| | - Jonathan L Carter
- Department of Neurology, Mayo Clinic Arizona, Mayo Foundation for Medical Education and Research , Scottsdale, AZ, USA
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Inshasi JS, Almadani A, Fahad SA, Noori SI, Alsaadi T, Shakra M, Shatila AO, Zein TM, Boshra A. High-efficacy therapies for relapsing-remitting multiple sclerosis: implications for adherence. An expert opinion from the United Arab Emirates. Neurodegener Dis Manag 2020; 10:257-266. [PMID: 32438857 DOI: 10.2217/nmt-2020-0016] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
The number of disease-modifying treatments (DMDs) for relapsing-remitting multiple sclerosis has increased. DMDs differ not only in their efficacy and safety/tolerability, but also in the treatment burden of, associated with their initiation, route/frequency of administration, maintenance treatment and monitoring. High-efficacy DMDs bring the prospect of improved suppression of relapses and progression of disability, but may have serious safety issues, and burdensome long-term monitoring. Studies of patient preferences in this area have focused on side effects, efficacy and route of administration. Adherence to DMDs is often suboptimal in relapsing-remitting multiple sclerosis and there is a need to understand more about how the complex therapeutic and administration profiles of newer DMDs interact with these barriers to support optimal adherence to therapy.
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Affiliation(s)
- Jihad Said Inshasi
- MS Section, Rashid Hospital & Dubai Medical College, Dubai Health Authority (DHA), Dubai, UAE
| | - Abubaker Almadani
- Rashid Hospital & Dubai Medical College, Dubai health Authority (DHA), Dubai, UAE
| | - Sarmad Al Fahad
- Neurology Department, Neurospinal Hospital, Baghdad Medical College, Dubai, UAE
| | | | - Taoufik Alsaadi
- Neurology Department, American Center for Psychiatry & Neurology, Dubai, UAE
| | - Mustafa Shakra
- Department of Neurology, Sheikh Khalifa Medical City, Abu Dhabi, UAE
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Boffa G, Bruschi N, Cellerino M, Lapucci C, Novi G, Sbragia E, Capello E, Uccelli A, Inglese M. Fingolimod and Dimethyl-Fumarate-Derived Lymphopenia is not Associated with Short-Term Treatment Response and Risk of Infections in a Real-Life MS Population. CNS Drugs 2020; 34:425-432. [PMID: 32193826 DOI: 10.1007/s40263-020-00714-8] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
BACKGROUND The association between treatment-related lymphopenia in multiple sclerosis, drug efficacy and the risk of infections is not yet fully understood. OBJECTIVE The objective of this study was to assess whether lymphopenia is associated with short-term treatment response and infection rate in a real-life multiple sclerosis population treated with fingolimod and dimethyl-fumarate. We assessed the associations between baseline absolute lymphocyte count and the lymphocyte mean percentage decrease at 6 and 12 months with treatment response and the occurrence of adverse events over 12 months in the entire cohort of patients and in the two treatment groups separately. METHODS This is a retrospective observational real-world study of patients with multiple sclerosis treated with fingolimod and dimethyl-fumarate at the MS Center of the University of Genoa between 2011 and 2018. Patients with at least 12 months of follow-up were eligible if [1] they had an Expanded Disability Status Scale assessment at baseline and 12 months after treatment onset, [2] they had undergone brain magnetic resonance imaging at baseline and after 12 months, and [3] absolute lymphocyte counts were available at baseline, 6 and 12 months. Patients shifting from dimethyl-fumarate to fingolimod or vice versa were excluded from the analysis. RESULTS In total, 137 and 75 patients treated with fingolimod and dimethyl-fumarate, respectively, were included in the analysis. At 12 months, fingolimod-treated patients were more likely to experience grade II and grade III lymphopenia compared with dimethyl-fumarate patients (p < 0.001, χ2 = 94) and had a higher lymphocyte mean percentage decrease (p < 0.001, U = 540). A higher number of previous therapies and a lower baseline absolute lymphocyte count were predictors of lymphopenia at 6 months (p = 0.047, odds ratio = 1.60 and p = 0.014, odds ratio = 1.1) and 12 months (p = 0.003, odds ratio = 1.97 and p = 0.023, odds ratio = 1.1). In fingolimod-treated patients only, female sex and a higher Expanded Disability Status Scale score were predictors of lymphopenia at 12 months (p = 0.006, odds ratio = 7.58 and p = 0.03, odds ratio = 1.56). Neither absolute lymphocyte count at 6 and 12 months nor the mean percentage decrease at 6 and 12 months predicted No Evidence of Disease Activity (NEDA-3) status at 1 year, the occurrence of relapses, disease activity on MRI or disability progression. CONCLUSIONS Our findings suggest that peripheral blood lymphocyte changes are not associated with short-term treatment response and with the rate of infections during fingolimod and dimethyl-fumarate treatment in real-world patients. Higher treatment exposure and a lower baseline absolute lymphocyte count are risk factors for lymphopenia development during fingolimod and dimethyl-fumarate therapy.
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Affiliation(s)
- Giacomo Boffa
- Department of Neuroscience, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health (DINOGMI), University of Genoa, Genoa, Italy
| | - Nicolò Bruschi
- Department of Neuroscience, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health (DINOGMI), University of Genoa, Genoa, Italy
| | - Maria Cellerino
- Department of Neuroscience, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health (DINOGMI), University of Genoa, Genoa, Italy
| | - Caterina Lapucci
- Department of Neuroscience, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health (DINOGMI), University of Genoa, Genoa, Italy
| | - Giovanni Novi
- Department of Neuroscience, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health (DINOGMI), University of Genoa, Genoa, Italy
| | - Elvira Sbragia
- Department of Neuroscience, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health (DINOGMI), University of Genoa, Genoa, Italy
| | - Elisabetta Capello
- Ospedale Policlinico San Martino IRCCS, Largo Daneo 3, 16100, Genoa, Italy
| | - Antonio Uccelli
- Department of Neuroscience, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health (DINOGMI), University of Genoa, Genoa, Italy.,Ospedale Policlinico San Martino IRCCS, Largo Daneo 3, 16100, Genoa, Italy
| | - Matilde Inglese
- Department of Neuroscience, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health (DINOGMI), University of Genoa, Genoa, Italy. .,Ospedale Policlinico San Martino IRCCS, Largo Daneo 3, 16100, Genoa, Italy.
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Intracerebral Hemorrhage: Blood Components and Neurotoxicity. Brain Sci 2019; 9:brainsci9110316. [PMID: 31717522 PMCID: PMC6896063 DOI: 10.3390/brainsci9110316] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Revised: 10/30/2019] [Accepted: 11/07/2019] [Indexed: 12/13/2022] Open
Abstract
Intracerebral hemorrhage (ICH) is a subtype of stroke which is associated with the highest mortality and morbidity rates of all strokes. Although it is a major public health problem, there is no effective treatment for ICH. As a consequence of ICH, various blood components accumulate in the brain parenchyma and are responsible for much of the secondary brain damage and ICH-induced neurological deficits. Therefore, the strategies that could attenuate the blood component-induced neurotoxicity and improve hematoma resolution are highly needed. The present article provides an overview of blood-induced brain injury after ICH and emphasizes the need to conduct further studies elucidating the mechanisms of hematoma resolution after ICH.
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