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Rabea EM, Belal MM, Hafez AH, Elbanna AH, Khalifa MA, Nourelden AZ, Mahmoud NH, Zaazouee MS. Safety and efficacy of extended versus standard interval dosing of natalizumab in multiple sclerosis patients: a systematic review and meta-analysis. Acta Neurol Belg 2024; 124:407-417. [PMID: 38457005 PMCID: PMC10965735 DOI: 10.1007/s13760-024-02480-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Accepted: 01/12/2024] [Indexed: 03/09/2024]
Abstract
BACKGROUND Multiple sclerosis (MS) is a chronic inflammatory, immune-mediated disease affecting the central nervous system. Natalizumab, an FDA-approved monoclonal antibody for MS, has been explored for its off-label extended interval dosing (EID), suggesting a potential reduction in the risk of progressive multifocal leukoencephalopathy (PML) compared to standard interval dosing (SID). Our objective was to assess the efficacy and safety of EID in comparison to SID for natalizumab treatment in patients with MS. METHODS We searched PubMed, Embase, WOS, Scopus, Ovid, Science Direct, Clinical trials.gov, and Cochrane Library. Our assessed outcomes were clinical relapses, MRI activity, change in expanded disability status scale [EDSS], and the risk of PML. The EID group was defined as 5 to 8 weeks [EID (Q5-8W)]. The analysis was conducted using RevMan ver. 5.4. The effect estimates were presented as a risk ratio [RR] or mean difference with 95% confidence intervals [CI] using SID group as the reference for comparisons. RESULTS Fourteen studies met our inclusion criteria: 2 RCTs, 1 switched single-arm trial, and 12 observational studies. No significant differences were found in all efficacy outcomes of interest. Risk of clinical relapses [RR = 0.90, (95%CI 0.80, 1.02)], risk of new or newly enlarging T2 hyperintense MRI lesions [RR = 0.78, (95%CI 0.59, 1.04)], risk gadolinium enhancing lesions [RR = 1.30, (95%CI 0.98, 1.72)], change in EDSS [MD = 0.09 (95%CI - 0.57, 0.76)], risk of PML [RR = 1.09, 95%CI (0.24, 4.94)]. CONCLUSION In summary, our meta-analysis indicates that natalizumab maintains its effectiveness under extended interval dosing [up to 8 weeks], presenting comparable risks for clinical relapses, MRI lesions, EDSS, and PML. Caution is advised given study limitations and heterogeneity. Robust conclusions necessitate well-designed high-quality prospective studies.
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Affiliation(s)
| | | | | | | | | | | | - Nada H Mahmoud
- Faculty of Medicine, Alexandria University, Alexandria, Egypt
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Teni FS, Machado A, Fink K, Gyllensten H, Hillert J, Friberg E. Recent trends in disease-modifying therapy use and associated sickness absence and disability pension among people with multiple sclerosis in Sweden. Mult Scler 2024; 30:419-431. [PMID: 38243631 PMCID: PMC10935615 DOI: 10.1177/13524585231225929] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Revised: 12/20/2023] [Accepted: 12/23/2023] [Indexed: 01/21/2024]
Abstract
BACKGROUND Disease-modifying therapies (DMTs) have led to improved health and work productivity among people with multiple sclerosis (PwMS). OBJECTIVES To describe trajectories of recent DMT use and their association with sickness absence and/or disability pension (SADP) among PwMS in Sweden. METHODS A longitudinal register-based study was conducted among 1395 PwMS with treatment start in 2014/2015. While DMT use over 5 years was assessed using sequence analysis resulting in four clusters, a 7-year (Y-2 toY4) trend of SADP was analyzed using zero-inflated negative binomial regression. RESULTS Four clusters of DMT use trajectories were identified: long-term non-high-efficacy (483, 34.6%), long-term high-efficacy (572, 41%), escalation (221, 15.8%), and discontinuation (119, 8.5%). Progressive MS and higher expanded disability status scale scores were associated with the escalation, long-term high-efficacy, or discontinuation clusters. PwMS in the long-term high-efficacy and escalation clusters had higher likelihood of being on SADP. However, PwMS initiating high-efficacy DMTs demonstrated steeper decline in SADP than others. CONCLUSION Using sequence analysis, this study showed recent DMT use trajectories among PwMS where initiation of high-efficacy DMTs has become more common. The trend of SADP was stable and lower in those using non-high-efficacy DMTs and larger improvements were shown in those initiating high-efficacy DMTs.
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Affiliation(s)
- Fitsum Sebsibe Teni
- Division of Insurance Medicine, Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden
| | - Alejandra Machado
- Division of Insurance Medicine, Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden
| | - Katharina Fink
- Division of Neurology, Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden
| | - Hanna Gyllensten
- Institute of Health and Care Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Jan Hillert
- Division of Neurology, Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden
| | - Emilie Friberg
- Division of Insurance Medicine, Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden
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Haki M, AL-Biati HA, Al-Tameemi ZS, Ali IS, Al-hussaniy HA. Review of multiple sclerosis: Epidemiology, etiology, pathophysiology, and treatment. Medicine (Baltimore) 2024; 103:e37297. [PMID: 38394496 PMCID: PMC10883637 DOI: 10.1097/md.0000000000037297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/26/2023] [Revised: 01/25/2024] [Accepted: 01/26/2024] [Indexed: 02/25/2024] Open
Abstract
Multiple sclerosis (MS) is a chronic autoimmune disease with demyelination, inflammation, neuronal loss, and gliosis (scarring). Our object to review MS pathophysiology causes and treatment. A Narrative Review article was conducted by searching on Google scholar, PubMed, Research Gate about relevant keywords we exclude any unique cases and case reports. The destruction of myelinated axons in the central nervous system reserves this brunt. This destruction is generated by immunogenic T cells that produce cytokines, copying a proinflammatory T helper cells1-mediated response. Autoreactive cluster of differentiation 4 + cells, particularly the T helper cells1 subtype, are activated outside the system after viral infections. T-helper cells (cluster of differentiation 4+) are the leading initiators of MS myelin destruction. The treatment plan for individuals with MS includes managing acute episodes, using disease-modifying agents to decrease MS biological function of MS, and providing symptom relief. Management of spasticity requires physiotherapy, prescription of initial drugs such as baclofen or gabapentin, secondary drug options such as tizanidine or dantrolene, and third-line treatment such as benzodiazepines. To treat urinary incontinence some options include anticholinergic medications such as oxybutynin hydrochloride, tricyclic antidepressants (such as amitriptyline), and intermittent self-catheterization. When it comes to bowel problems, one can try to implement stool softeners and consume a high roughage diet. The review takes about MS causes Pathophysiology and examines current treatment strategies, emphasizing the advancements in disease-modifying therapies and symptomatic treatments. This comprehensive analysis enhances the understanding of MS and underscores the ongoing need for research to develop more effective treatments.
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Affiliation(s)
- Maha Haki
- Department of Pharmacy, Bilad Alrafidain University College, Diyala, Iraq
| | - Haeder A. AL-Biati
- Department of Pharmacy, Bilad Alrafidain University College, Diyala, Iraq
| | - Zahraa Salam Al-Tameemi
- Department of Pharmacy, Bilad Alrafidain University College, Diyala, Iraq
- Dr. Hany Akeel Institute, Iraqi Medical Research Center, Baghdad, Iraq
| | - Inas Sami Ali
- Department of Pharmacy, Bilad Alrafidain University College, Diyala, Iraq
| | - Hany A. Al-hussaniy
- Department of Pharmacy, Bilad Alrafidain University College, Diyala, Iraq
- Dr. Hany Akeel Institute, Iraqi Medical Research Center, Baghdad, Iraq
- Department of Pharmacology, College of Medicine, University of Baghdad, Baghdad, Iraq
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Zhao T, Taylor BV, Campbell JA, Palmer AJ. The disease-modifying therapy utilisation and cost trend for multiple sclerosis in Australia between 2013 and 2022. Mult Scler 2024; 30:80-88. [PMID: 38116594 DOI: 10.1177/13524585231213230] [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: 12/21/2023]
Abstract
BACKGROUND The MS disease-modifying therapies (DMTs) prescribing landscape in Australia have changed over time. OBJECTIVES This study evaluated the utilisation and cost trends of MS-related DMTs in Australia over 10 years and investigated differences between States/Territories. METHODS The prescription and costs of 16 DMTs were extracted from the Pharmaceutical Benefits Scheme for 2013-2022. Descriptive approaches analysed the total number of people prescribed DMTs and total DMT costs per 10,000 population, proportions of prescriptions/costs by DMT groups and the number of people prescribed each individual DMT and costs of each DMT over the 10-year period. All estimates were for Australia and each State/Territory individually. RESULTS The number of people prescribed DMT and costs per 10,000 population had substantial growth between 2013 and 2022: 125%/164% for Australia, and 94%-251%/129%-373% for individual States/Territories. Higher efficacy group accounted for 54% of total people prescribed DMTs in 2013 and 75% in 2022. Fingolimod was the most popular DMT until 2020, then was dominated by ocrelizumab. The trends of individual DMT prescriptions and costs differed between states particularly in Western Australia (WA), Tasmania and Northern Territory (NT). CONCLUSION DMT prescriptions and costs continuously increased over the last decade, particularly for higher efficacy DMTs, and their trends differed between States/Territories.
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Affiliation(s)
- Ting Zhao
- Menzies Institute for Medical Research, University of Tasmania, Medical Science Precinct, Hobart, TAS, Australia
| | - Bruce V Taylor
- Menzies Institute for Medical Research, University of Tasmania, Medical Science Precinct, Hobart, TAS, Australia
| | - Julie A Campbell
- Menzies Institute for Medical Research, University of Tasmania, Medical Science Precinct, Hobart, TAS, Australia
| | - Andrew J Palmer
- Menzies Institute for Medical Research, University of Tasmania, Medical Science Precinct, Hobart, TAS, Australia
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Veillard D, Baumstarck K, Hamonic S, Ousmen A, Hamidou Z, Edan G, Auquier P. Dyadic coping strategies and quality of care experience: An original study of patients living with multiple sclerosis and their caregivers. Rev Neurol (Paris) 2023; 179:1118-1127. [PMID: 37718212 DOI: 10.1016/j.neurol.2023.02.072] [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: 10/27/2022] [Revised: 02/12/2023] [Accepted: 02/17/2023] [Indexed: 09/19/2023]
Abstract
BACKGROUND AND OBJECTIVE Multiple sclerosis has a major impact on the lives of patients and their caregivers. Measuring their experience is essential for improving the quality of care. Based on a sample of patient-informal caregiver dyads we examine whether coping strategies they implemented influenced their self-experience of quality of care. METHODS One hundred and eighty three dyads were involved in this cross-sectional study. Self reported data included experience with the quality of care (Musicare) and coping strategies (Brief Cope) for patients and their caregivers. An actor-partner interdependence model (APIM) analysis was performed to assess the dyadic effects of coping strategies on experience of quality of care. RESULTS Positive coping strategies were the most used by patients and caregivers alike. They were associated with a better experience of relationships with healthcare professionals, information about the disease and patient reception at the sites providing care. APIM analyses confirmed most of these results and identified one "partner" effect. CONCLUSION The experience of the quality of the care of patients living with MS is related to the use of positive coping strategies.
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Affiliation(s)
- D Veillard
- Public Health and Epidemiology Department, Rennes University Hospital, Rennes, France; Public Health: Quality of Life and Chronic Diseases EA3279, Aix-Marseille University, Marseille, France.
| | - K Baumstarck
- Public Health: Quality of Life and Chronic Diseases EA3279, Aix-Marseille University, Marseille, France
| | - S Hamonic
- Public Health and Epidemiology Department, Rennes University Hospital, Rennes, France
| | - A Ousmen
- Public Health and Epidemiology Department, Rennes University Hospital, Rennes, France
| | - Z Hamidou
- Public Health: Quality of Life and Chronic Diseases EA3279, Aix-Marseille University, Marseille, France
| | - G Edan
- Clinical Neuroscience Centre, CIC-P 1414 INSERM, Rennes University Hospital, Rennes, France
| | - P Auquier
- Public Health: Quality of Life and Chronic Diseases EA3279, Aix-Marseille University, Marseille, France
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Xu Q, Yang X, Qiu Z, Li D, Wang H, Ye H, Jiao L, Zhang J, Di L, Lei P, Dong H, Liu Z. Clinical features of MOGAD with brainstem involvement in the initial attack versus NMOSD and MS. Mult Scler Relat Disord 2023; 77:104797. [PMID: 37402345 DOI: 10.1016/j.msard.2023.104797] [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: 02/24/2023] [Revised: 04/28/2023] [Accepted: 06/03/2023] [Indexed: 07/06/2023]
Abstract
OBJECTIVE To assess the characteristics of Myelin oligodendrocyte glycoprotein (MOG) antibody-associated disorder (MOGAD) with brainstem involvement in the first event (BSIFE) and make comparisons with aquaporin-4-IgG seropositive neuromyelitis optica spectrum disorder (AQP4-IgG-NMOSD) and multiple sclerosis (MS). METHODS From 2017 to 2022, this study identified MOG-IgG-positive patients with brainstem or both brainstem and cerebellum lesions in the first episode. As a comparison group, AQP4-IgG-NMOSD (n = 30) and MS (n = 30) patients with BSIFE were enroled. RESULTS Thirty-five patients (35/146, 24.0%) were the BSIFE of MOGAD. Isolated brainstem episodes occurred in 9 of the 35 (25.7%) MOGAD patients, which was similar to MS (7/30, 23.3%) but was lower than AQP4-IgG-NMOSD (17/30, 56.7%, P = 0.011). Pons (21/35, 60.0%), medulla oblongata (20/35, 57.1%) and middle cerebellar peduncle (MCP, 19/35, 54.3%) were the most frequently affected areas. Intractable nausea (n = 7), vomiting (n = 8) and hiccups (n = 2) happened in MOGAD patients, but EDSS of MOGAD was lower than AQP4-IgG-NMOSD (P = 0.001) at the last follow-up. MOGAD patients with or without BSIFE did not significantly differ in terms of the ARR (P = 0.102), mRS (P = 0.823), or EDSS (P = 0.598) at the most recent follow-up. Specific oligoclonal bands appeared in MOGAD (13/33, 39.4%) and AQP4-IgG-NMOSD (7/24, 29.2%) in addition to MS (20/30, 66.7%). Fourteen MOGAD patients (40.0%) experienced relapse in this study. When the brainstem was involved in the first attack, there was an increased likelihood of a second attack occurring at the same location (OR=12.22, 95%CI 2.79 to 53.59, P = 0.001). If the first and second events were both in the brainstem, the third event was likely to occur at the same location (OR=66.00, 95%CI 3.47 to 1254.57, P = 0.005). Four patients experienced relapses after the MOG-IgG turned negative. CONCLUSION BSIFE occurred in 24.0% of MOGAD. Pons, medulla oblongata and MCP were the most frequently involved regions. Intractable nausea, vomiting and hiccups occurred in MOGAD and AQP4-IgG-NMOSD, but not MS. The prognosis of MOGAD was better than AQP4-IgG-NMOSD. In contrast to MS, BSIFE may not indicate a worse prognosis for MOGAD. When patients with BSIFE, MOGAD tent to reoccur in the brainstem. Four of the 14 recurring MOGAD patients relapsed after the MOG-IgG test turned negative.
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Affiliation(s)
- Qiao Xu
- Department of Neurology, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
| | - Xixi Yang
- Department of Neurology, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
| | - Zhandong Qiu
- Department of Neurology, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
| | - Dawei Li
- Department of Neurology, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
| | - Hongxing Wang
- Department of Neurology, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
| | - Hong Ye
- Department of Neurology, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
| | - Lidong Jiao
- Department of Neurology, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
| | - Jing Zhang
- Department of Neurology, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
| | - Li Di
- Department of Neurology, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
| | - Peng Lei
- Department of Neurology, The First College of Clinical Medical Science, China Three Gorges University and Yichang Central People's Hospital, Yichang 443000, China
| | - Huiqing Dong
- Department of Neurology, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
| | - Zheng Liu
- Department of Neurology, Xuanwu Hospital, Capital Medical University, Beijing 100053, China.
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Sammi MK, Fryman A, Baker E, Moloney B, Powers K, West R, Bittner F, Lane M, Martin K, Pepelyayeva Y, Anderson VC, Rooney WD, Yadav V. Vascular disease risk factors in multiple sclerosis: Effect on metabolism and brain volumes. Mult Scler Relat Disord 2023; 74:104675. [PMID: 37121104 PMCID: PMC10560072 DOI: 10.1016/j.msard.2023.104675] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Revised: 03/21/2023] [Accepted: 03/26/2023] [Indexed: 04/03/2023]
Abstract
BACKGROUND Vascular disease risk factors (VDRF) such as hypertension, hyperlipidemia, obesity, diabetes and heart disease likely play a role in disease progression in people with multiple sclerosis (PwMS) (Marrie, Rudick et al. 2010). Studies exploring the mechanistic connection between vascular disease and MS disease progression are scant. We hypothesized that phosphate energy metabolism impairment in PwMS with VDRFs (VDRF+) will be greater compared to PwMS without VDRFs (VDRF-) and is related to increased brain atrophy in VDRF+. To test this hypothesis, we planned to study the differences in the high energy phosphate (HEP) metabolites in cerebral gray matter as assessed by 31P magnetic resonance spectroscopic imaging (MRSI) and MRI brain volumetric in the VDRF+ and VDRF- PwMS at four different timepoints over a 3 yearlong period using a 7T MR system. We present here the results from the cross-sectional evaluation of HEP metabolites and brain volumes. We also evaluated the differences in clinical impairment, blood metabolic biomarkers and quality of life in VDRF+ and VDRF- PwMS in this cohort. METHODS Group differences in high energy phosphate metabolites were assessed from a volume of interest in the occipital region using linear mixed models. Brain parenchymal and white matter lesion volumes were determined from MR anatomic images. We present here the cross-sectional analysis of the baseline data collected as part of a longitudinal 3 yearlong study where we obtained baseline and subsequent 6-monthly clinical and laboratory data and annual 7T MRI volumetric and 31P MR spectroscopic imaging (MRSI) data on 52 PwMS with and without VDRF. Key clinical and laboratory outcomes included: body mass index (BMI), waist and thigh circumferences and disability [Expanded Disability Status Scale (EDSS)], safety (complete blood count with differential, complete metabolic), lipid panel including total cholesterol and HbA1C. We analyzed clinical and laboratory data for the group differences using student's t or χ2 test. We investigated relationship between phosphate metabolites and VDRF using mixed effect linear regression. RESULTS Complete MRI data were available for 29 VDRF+, age 56.3 (6.8) years [mean (SD)] (83% female), and 23 VDRF-, age 52.5 (7.5) years (57% female) individuals with MS. The mean value of normalized adenosine triphosphate (ATP) (calculated as the ratio of ATP to total phosphate signal in a voxel) was decreased by 4.5% (p < .05) in VDRF+ compared to VDRF- MS group. White matter lesion (WML) volume fraction in VDRF+ individuals {0.007 (0.007)} was more than doubled compared to VDRF- participants {0.003 (0.006), p= .02}. CONCLUSIONS We found significantly lower brain ATP and higher inorganic phosphate (Pi) in those PwMS with VDRFs compared to those without. ATP depletion may reflect mitochondrial dysfunction. Ongoing longitudinal data analysis from this study, not presented here, will evaluate the relationship of phosphate metabolites, brain atrophy and disease progression in PwMS with and without vascular disease.
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Affiliation(s)
- Manoj K Sammi
- Advanced Imaging Research Center, Oregon Health & Science University, Portland, OR, USA.
| | - Allison Fryman
- Department of Neurology, Oregon Health & Science University, Portland, OR, USA; Department of Veterans Affairs MS Center of Excellence-West, Portland, OR, USA
| | - Eric Baker
- Advanced Imaging Research Center, Oregon Health & Science University, Portland, OR, USA
| | - Brendan Moloney
- Advanced Imaging Research Center, Oregon Health & Science University, Portland, OR, USA
| | - Katherine Powers
- Advanced Imaging Research Center, Oregon Health & Science University, Portland, OR, USA
| | - Randy West
- Advanced Imaging Research Center, Oregon Health & Science University, Portland, OR, USA
| | - Frank Bittner
- Department of Neurology, Oregon Health & Science University, Portland, OR, USA
| | - Michael Lane
- Department of Neurology, Oregon Health & Science University, Portland, OR, USA; Department of Veterans Affairs MS Center of Excellence-West, Portland, OR, USA
| | - Kayla Martin
- Department of Neurology, Oregon Health & Science University, Portland, OR, USA; Department of Veterans Affairs MS Center of Excellence-West, Portland, OR, USA
| | - Yuliya Pepelyayeva
- Department of Neurology, Oregon Health & Science University, Portland, OR, USA
| | - Valerie C Anderson
- Advanced Imaging Research Center, Oregon Health & Science University, Portland, OR, USA
| | - William D Rooney
- Advanced Imaging Research Center, Oregon Health & Science University, Portland, OR, USA
| | - Vijayshree Yadav
- Department of Neurology, Oregon Health & Science University, Portland, OR, USA; Department of Veterans Affairs MS Center of Excellence-West, Portland, OR, USA.
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Koduru TS, Gupta VN, Veeranna B, Seetharaman S. A Dual Therapy of Nanostructured Lipid Carrier Loaded with Teriflunomide-A Dihydro-Orotate Dehydrogenase Inhibitor and an miR-155-Antagomir in Cuprizone-Induced C57BL/6J Mouse. Pharmaceutics 2023; 15:pharmaceutics15041254. [PMID: 37111739 PMCID: PMC10143733 DOI: 10.3390/pharmaceutics15041254] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Revised: 03/14/2023] [Accepted: 04/10/2023] [Indexed: 04/29/2023] Open
Abstract
The effective treatment of central nervous system (CNS) disorders such as multiple sclerosis (MS) has been challenging due to the limited ability of therapeutic agents to cross the blood-brain barrier (BBB). In this study, we investigated the potential of nanocarrier systems to deliver miR-155-antagomir-teriflunomide (TEF) dual therapy to the brain via intranasal (IN) administration to manage MS-associated neurodegeneration and demyelination. Our results showed that the combinatorial therapy of miR-155-antagomir and TEF loaded in nanostructured lipid carriers (NLCs) significantly increased brain concentration and improved targeting potential. The novelty of this study lies in the use of a combinatorial therapy approach of miR-155-antagomir and TEF loaded in NLCs. This is a significant finding, as the effective delivery of therapeutic molecules to the CNS has been a challenge in treating neurodegenerative disorders. Additionally, this study sheds light on the potential use of RNA-targeting therapies in personalized medicine, which could revolutionize the way CNS disorders are managed. Furthermore, our findings suggest that nanocarrier-loaded therapeutic agents have great potential for safe and economical delivery in treating CNS disorders. Our study provides novel insights into the effective delivery of therapeutic molecules via the IN route for managing neurodegenerative disorders. In particular, our results demonstrate the potential of delivering miRNA and TEF via the intranasal route using the NLC system. We also demonstrate that the long-term use of RNA-targeting therapies could be a promising tool in personalized medicine. Importantly, using a cuprizone-induced animal model, our study also investigated the effects of TEF-miR155-antagomir-loaded NLCs on demyelination and axonal damage. Following six weeks of treatment, the TEF-miR155-antagomir-loaded NLCs potentially lowered the demyelination and enhanced the bioavailability of the loaded therapeutic molecules. Our study is a paradigm shift in delivering miRNAs and TEF via the intranasal route and highlights the potential of this approach for managing neurodegenerative disorders. In conclusion, our study provides critical insights into the effective delivery of therapeutic molecules via the IN route for managing CNS disorders, and especially MS. Our findings have significant implications for the future development of nanocarrier-based therapies and personalized medicine. Our results provide a strong foundation for further studies and the potential to develop safe and economic therapeutics for CNS disorders.
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Affiliation(s)
- Trideva Sastri Koduru
- Department of Pharmaceutics, JSS College of Pharmacy, JSS Academy of Higher Education & Research, Shivarathreeshwara Nagara, Mysuru 570015, India
| | - Vishal N Gupta
- Department of Pharmaceutics, JSS College of Pharmacy, JSS Academy of Higher Education & Research, Shivarathreeshwara Nagara, Mysuru 570015, India
| | - Balamuralidhara Veeranna
- Department of Pharmaceutics, JSS College of Pharmacy, JSS Academy of Higher Education & Research, Shivarathreeshwara Nagara, Mysuru 570015, India
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Wilken J, Traboulsee A, Nelson F, Ionete C, Kolind S, Fratto T, Kane R, Gandhi R, Rawlings AM, Roesch N, Ozog MA, DeLuca J. Longitudinal assessment of neurocognitive function in people with relapsing multiple sclerosis initiating alemtuzumab in routine clinical practice: LEM-COG study results. Mult Scler Relat Disord 2023; 73:104677. [PMID: 37028124 DOI: 10.1016/j.msard.2023.104677] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 02/21/2023] [Accepted: 03/26/2023] [Indexed: 03/29/2023]
Abstract
BACKGROUND Alemtuzumab is effective in reducing relapse rate and disability, but limited data exist on its effect on cognitive function in relapsing multiple sclerosis (RMS). The present study assessed neurocognitive function and safety associated with alemtuzumab treatment in RMS. METHODS This longitudinal, single-arm, prospective study included people with RMS (aged 25-55 years) who were treated with alemtuzumab in clinical practice in the United States of America and Canada. The first participant was enrolled in December 2016. The primary endpoint was the change from baseline to post-baseline (month [M] 12/24) in MS-COGnitive (MS-COG) composite score. Secondary endpoints included Paced Auditory Serial Addition Test (PASAT), Symbol Digit Modalities Test (SDMT), Brief Visuospatial Memory Test-Revised (BVMT-R), Selective Reminding Test (SRT), Controlled Oral Word Association Test (COWAT), and Automated Neuropsychological Assessment Metrics (ANAM) scores. Depression and fatigue were assessed using Hamilton Rating Scale-Depression (HAM-D) and Fatigue Severity Scale (FSS)/Modified Fatigue Impact Scale (MFIS), respectively. Magnetic resonance imaging (MRI) parameters were assessed when available. Safety was assessed throughout the study. Descriptive statistics were used for the pre-specified statistical analyses. Since the study was terminated early (November 2019) because of operational and resource difficulties, post hoc analyses for statistical inference were performed among participants who had a baseline value and at least one complete post-baseline assessment for cognitive parameters, fatigue, or depression. RESULTS Of the 112 participants enrolled, 39 were considered as the primary analysis population at M12. At M12, a mean change of 0.25 (95% confidence interval [CI]: 0.04, 0.45; p = 0.0049; effect size [ES]: 0.39) was observed in the MS-COG composite score. Improvements were observed in processing speed (based on PASAT and SDMT; p < 0.0001; ES: 0.62), as well as in individual PASAT, SDMT and COWAT scores. An improvement was also noted in HAM-D (p = 0.0054; ES: -0.44), but not in fatigue scores. Among MRI parameters, decreases in burden of disease volume (BDV; ES: -0.12), new gadolinium-enhancing lesions (ES: -0.41) and newly active lesions (ES: -0.07) were observed at M12. About 92% of participants showed stable or improved cognitive status at M12. There were no new safety signals reported in the study. The most common adverse events (≥10% of participants) were headache, fatigue, nausea, insomnia, urinary tract infection, pain in extremity, chest discomfort, anxiety, dizziness, arthralgia, flushing, and rash. Hypothyroidism (3.7%) was the most frequent adverse event of special interest. CONCLUSION The findings from this study suggest that alemtuzumab has a positive impact on cognitive function with significant improvements in processing speed and depression in people with RMS over a period of 12 months. The safety profile of alemtuzumab was consistent with previous studies.
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Smith AD, Moog TM, Burgess KW, McCreary M, Okuda DT. Factors associated with the misdiagnosis of neuromyelitis optica spectrum disorder. Mult Scler Relat Disord 2023; 70:104498. [PMID: 36610360 DOI: 10.1016/j.msard.2023.104498] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 12/05/2022] [Accepted: 01/01/2023] [Indexed: 01/04/2023]
Abstract
BACKGROUND Neuromyelitis optica spectrum disorder (NMOSD) is a rare autoimmune condition that is associated with severe disability. Approximately 40% of individuals are misdiagnosed with multiple sclerosis (MS) or other diseases. We aimed to define factors that influence the misdiagnosis of people with NMOSD and provide strategies for reducing error rates. METHODS A retrospective study was performed involving all people with a confirmed diagnosis of NMOSD within a single academic institution. Comprehensive clinical timelines were constructed for each individual that included presenting symptoms, provider type and timing of evaluations, aquaporin 4-IgG (AQP4) results, and MRI scans. Two-sample comparisons of continuous and categorial variables were performed for people accurately diagnosed with NMOSD and those originally misdiagnosed with another medical condition. A subanalysis of only AQP4-IgG positive people was also performed. RESULTS The study cohort included 199 people fulfilling International Panel criteria for NMOSD with 71 people (62 female; mean age at first symptom presentation (standard deviation (SD)) = 32.8 years (y) (SD 16.1)) being initially misdiagnosed and 128 people (106 female; 41.14y (SD 15.41)) who were accurately diagnosed. Of the 199 people with NMOSD, 166 had a positive serostatus. Identified factors associated with misdiagnosis, regardless of AQP4-IgG serostatus, were the presence of protracted nausea/vomiting/hiccups without any accompanying neurological symptoms, 23 (32.4%) versus 16 (12.5%) (p = 0.001), a longer median (range) time to see a neuroimmunology specialist 4.2y (0.14-31.8) versus 0.5y (0.0-21.2) (p<0.0001), and a delay in acquiring an MRI study, 4.7y (0.0-27.3) versus 0.3y (0.0-20.2) (p<0.0001). A greater proportion of people misdiagnosed were identified with a negative live-cell based AQP4-IgG serum test result, 13/13 (100%) versus 22/114 (19.3%) (p<0.0001). Additionally, the mean (SD) time between a first negative and successive live-cell based AQP4-IgG positive test result was greater for people misdiagnosed with another condition, 3.9y (SD 5.0) versus 1.5y (SD 2.1) (p = 0.01). Although not significant between groups, a rash was also reported in 63/199 people with NMOSD, with 31/63 having an anti-nuclear antibody titer ≥ 1:160. CONCLUSION Defined factors can help guide both generalists and specialists in the pursuit of strategies aimed at efficiently diagnosing those with NMOSD such that effective care can be delivered.
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Affiliation(s)
- Alexander D Smith
- Department of Neurology, Neuroinnovation Program, Multiple Sclerosis & Neuroimmunology Imaging Program, The University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Tatum M Moog
- Department of Neurology, Neuroinnovation Program, Multiple Sclerosis & Neuroimmunology Imaging Program, The University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Katy W Burgess
- Department of Neurology, Neuroinnovation Program, Multiple Sclerosis & Neuroimmunology Imaging Program, The University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Morgan McCreary
- Department of Neurology, Neuroinnovation Program, Multiple Sclerosis & Neuroimmunology Imaging Program, The University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Darin T Okuda
- Department of Neurology, Neuroinnovation Program, Multiple Sclerosis & Neuroimmunology Imaging Program, The University of Texas Southwestern Medical Center, Dallas, TX, USA.
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Xu Z, Lu S, Liu X, Tang L, Liu Z, Cui J, Wang W, Lu W, Huang J. Drug repurposing of ilepcimide that ameliorates experimental autoimmune encephalomyelitis via restricting inflammatory response and oxidative stress. Toxicol Appl Pharmacol 2023; 458:116328. [PMID: 36455640 DOI: 10.1016/j.taap.2022.116328] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2022] [Revised: 11/22/2022] [Accepted: 11/24/2022] [Indexed: 11/30/2022]
Abstract
Multiple sclerosis (MS) is an inflammatory and demyelinating disease of the central nervous system (CNS) that remains incurable. Herein, we demonstrated that ilepcimide (Antiepilepsirine), an antiepileptic drug used for decades, protects mice from experimental autoimmune encephalomyelitis (EAE), a mouse model of MS. Our studies found that ilepcimide treatment effectively ameliorates demyelination, blood-brain barrier leakage and infiltration of CD4+ and CD8+ T cells in EAE mice. On the one hand, ilepcimide can inhibit dihydroorotate dehydrogenase (DHODH), an important therapeutic target for MS. Computer molecular docking, thermal shift and fluorescence quenching assay demonstrated the directly interaction between ilepcimide and DHODH. Accordingly, ilepcimide observably repressed T cell proliferation in mixed lymphocyte reaction (MLR) assay and concanavalin A (Con-A) model in a DHODH-dependent manner. On the other hand, ilepcimide exhibited neuroprotective effect possibly through activating NRF2 antioxidant pathway in mouse neural crest-derived Neuro2a cells. Collectively, our findings have revealed the therapeutic potential of ilepcimide in EAE mouse model via restricting inflammatory response and oxidative stress, offering a potential opportunity for repurposing existing drug ilepcimide for MS therapy.
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Affiliation(s)
- Zhaomin Xu
- Shanghai Frontiers Science Center of Optogenetic Techniques for Cell Metabolism, School of Pharmacy, East China University of Science and Technology, Shanghai, China
| | - Sisi Lu
- Shanghai Frontiers Science Center of Optogenetic Techniques for Cell Metabolism, School of Pharmacy, East China University of Science and Technology, Shanghai, China
| | - Xi Liu
- Shanghai Frontiers Science Center of Optogenetic Techniques for Cell Metabolism, School of Pharmacy, East China University of Science and Technology, Shanghai, China
| | - Lu Tang
- Shanghai Frontiers Science Center of Optogenetic Techniques for Cell Metabolism, School of Pharmacy, East China University of Science and Technology, Shanghai, China
| | - Zehui Liu
- Shanghai Frontiers Science Center of Optogenetic Techniques for Cell Metabolism, School of Pharmacy, East China University of Science and Technology, Shanghai, China
| | - Jiayan Cui
- Shanghai Frontiers Science Center of Optogenetic Techniques for Cell Metabolism, School of Pharmacy, East China University of Science and Technology, Shanghai, China
| | - Wanyan Wang
- Shanghai Frontiers Science Center of Optogenetic Techniques for Cell Metabolism, School of Pharmacy, East China University of Science and Technology, Shanghai, China
| | - Weiqiang Lu
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai, China.
| | - Jin Huang
- Shanghai Frontiers Science Center of Optogenetic Techniques for Cell Metabolism, School of Pharmacy, East China University of Science and Technology, Shanghai, China.
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Kalinichenko EN, Babitskaya SV. The Development of the Combination Drug Leukovir ® Tablets for the Treatment of Multiple Sclerosis: A Comprehensive Review. Curr Drug Targets 2023; 24:1271-1281. [PMID: 38037996 DOI: 10.2174/0113894501272301231124074141] [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: 08/11/2023] [Revised: 10/31/2023] [Accepted: 11/08/2023] [Indexed: 12/02/2023]
Abstract
The review is devoted to the development and study of the drug Leukovir® (cladribine+ ribavirin) and its use in the treatment of relapsing-remitting and secondary progressive forms of multiple sclerosis, a chronic neurodegenerative disease aiming the risk reduction of relapse and progression of a disability. In clinical trials Leukovir® has proved to be efficient by up to 56 weeks for the treatment of relapsing-remitting and secondary progressive forms of multiple sclerosis. The drug is registered in the Republic of Belarus. The efficacy, safety and tolerability profile of the drug Leukovir® suggests that it is well suited for disease-modifying therapy of multiple sclerosis. Patients require four 35-day courses of treatment, each consisting of seven days of treatment followed by a break of 28 days. The use of Leukovir® has contributed to the suppression of inflammatory process activity according to MRI data and stabilization of the clinical condition. It has reduced the number of relapses in patients with relapsing-remitting and secondary-progressive forms of multiple sclerosis.
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Affiliation(s)
- Elena N Kalinichenko
- Institute of Bioorganic Chemistry, National Academy of Sciences of Belarus, BY-220141, 5/2 Academician V.F. Kuprevich Street, Minsk, Belarus
| | - Svetlana V Babitskaya
- Institute of Bioorganic Chemistry, National Academy of Sciences of Belarus, BY-220141, 5/2 Academician V.F. Kuprevich Street, Minsk, Belarus
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Trends and Perspectives of Biological Drug Approvals by the FDA: A Review from 2015 to 2021. Biomedicines 2022; 10:biomedicines10092325. [PMID: 36140426 PMCID: PMC9496574 DOI: 10.3390/biomedicines10092325] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Revised: 09/12/2022] [Accepted: 09/14/2022] [Indexed: 11/16/2022] Open
Abstract
Despite belonging to a relatively new class of pharmaceuticals, biological drugs have been used since the 1980s, when they brought about a breakthrough in the treatment of chronic diseases, especially cancer. They conquered a large space in the pipeline of the pharmaceutical industry and boosted the innovation portfolio and arsenal of therapeutic compounds available. Here, we report on biological drug approvals by the US Food and Drug Administration (FDA) from 2015 to 2021. The number of drugs included in this class grew over this period, totaling 90 approvals, with an average of 13 authorizations per year. This figure contrasts with previous periods, which registered between 2 and 8 approvals per year. We highlight the great potential and advantages of biological drugs. In this context, these therapeutics show high efficacy and high selectivity, and they have brought about a significant increase in patient survival and a reduction of adverse reactions. The development and production of biopharmaceuticals pose a major challenge because these processes require cutting-edge technology, thereby making the drugs very expensive. However, we believe that, in the near future, biological medicines will be more accessible and new drugs belonging to this class will become available as new technologies emerge. Such advances will enhance the production of these biopharmaceuticals, thereby making the process increasingly profitable and less expensive, thereby bringing about greater availability of these drugs.
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Jacobs M, Geiger M, Summers S, Janes T, Boyea R, Zinn K, Aburashed R, Spence D. Interferon-β Decreases the Hypermetabolic State of Red Blood Cells from Patients with Multiple Sclerosis. ACS Chem Neurosci 2022; 13:2658-2665. [PMID: 35946788 DOI: 10.1021/acschemneuro.2c00332] [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: 01/20/2023] Open
Abstract
Multiple sclerosis (MS) is an inflammatory disease characterized by damage to the myelin sheath surrounding axons in the central nervous system. While the exact mechanism of this destruction is unknown, excess nitric oxide (NO) and adenosine triphosphate (ATP) have been measured in tissues and fluids obtained from people with MS. Here, incubation of interferon-beta (IFN-β), an MS drug with an unknown mechanism of action, with red blood cells (RBCs) obtained from people with MS provide evidence of a potential hypermetabolic state in the MS RBC that is decreased with IFN-β intervention. Specifically, binding of all three components of an albumin/C-peptide/Zn2+ complex to MS RBCs was significantly increased in comparison to control RBCs. For example, the binding of C-peptide to MS RBCs was significantly increased (3.4 ± 0.1 nM) compared to control RBCs (1.6 ± 0.2 nM). However, C-peptide binding to MS RBCs was reduced to a value (1.6 ± 0.3 nM) statistically equal to that of control RBCs in the presence of 2 nM IFN-β. Similar trends were measured for albumin and Zn2+ binding to RBCs when in the presence of IFN-β. RBC function was also affected by incubation of cells with IFN-β. Specifically, RBC-derived ATP and measurable membrane GLUT1 were both significantly decreased (56 and 24%, respectively) in the presence of IFN-β. Collectively, our results suggest that IFN-β inhibits albumin binding to the RBC, thereby reducing its ability to deliver ligands such as C-peptide and Zn2+ to the cell and normalizing the basal hypermetabolic state.
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Affiliation(s)
- M Jacobs
- Department of Comparative Medicine and Integrative Biology, Michigan State University, East Lansing, Michigan 48824, United States.,Institute for Quantitative Health Science and Engineering, Michigan State University, East Lansing, Michigan 48824, United States
| | - M Geiger
- Department of Chemistry, Michigan State University, East Lansing, Michigan 48824, United States.,Institute for Quantitative Health Science and Engineering, Michigan State University, East Lansing, Michigan 48824, United States
| | - S Summers
- Department of Biomedical Engineering, Michigan State University, East Lansing, Michigan 48824, United States.,Institute for Quantitative Health Science and Engineering, Michigan State University, East Lansing, Michigan 48824, United States
| | - T Janes
- Department of Chemistry, Michigan State University, East Lansing, Michigan 48824, United States
| | - R Boyea
- Department of Chemistry, Michigan State University, East Lansing, Michigan 48824, United States
| | - K Zinn
- Department of Biomedical Engineering, Michigan State University, East Lansing, Michigan 48824, United States.,Institute for Quantitative Health Science and Engineering, Michigan State University, East Lansing, Michigan 48824, United States
| | - R Aburashed
- Memorial Healthcare Institute for Neuroscience, Michigan State University, East Lansing, Michigan 48824, United States
| | - D Spence
- Department of Biomedical Engineering, Michigan State University, East Lansing, Michigan 48824, United States.,Institute for Quantitative Health Science and Engineering, Michigan State University, East Lansing, Michigan 48824, United States
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The incidence and prevalence, diagnosis, and treatment of multiple sclerosis in China: a narrative review. Neurol Sci 2022; 43:4695-4700. [PMID: 35583839 PMCID: PMC9349092 DOI: 10.1007/s10072-022-06126-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Accepted: 05/07/2022] [Indexed: 10/27/2022]
Abstract
AbstractIn 2018, the first list of rare diseases was published by the National Health Council of China, and multiple sclerosis (MS) was included in this list. Since then, the Chinese government and neurologists have made efforts to improve the clinical outcomes of patients with MS. During last few years, the incidence of MS in China was also investigated. The early and accurate diagnosis of MS was improved due to the application and promotion of magnetic resonance imaging and new diagnosis criteria. The market for and medical insurance access to disease-modifying therapies (DMTs) has been greatly accelerated, which has provided more treatment options and improved clinical outcomes for patients with MS, as well as reduced treatment cost. The pattern of MS in China is gradually changing, from delayed to early diagnosis, and from no treatment to treatment with DMTs during remission. This narrative review aimed to summarize an update to the status of MS in China, including incidence and prevalence, diagnosis, and available treatments. This would help to better understand the diagnosis and treatment gap between mainland China and other Asian regions, demonstrating the necessity of accurate diagnosis and optimized treatment of MS in China.
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Health-related quality of life of patients with multiple sclerosis: Analysis of ten years of national data. Mult Scler Relat Disord 2022; 66:104019. [PMID: 35839614 DOI: 10.1016/j.msard.2022.104019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Revised: 06/22/2022] [Accepted: 07/01/2022] [Indexed: 11/23/2022]
Abstract
BACKGROUND Multiple sclerosis (MS) is a progressive autoimmune disease of the central nervous system. Both the physical and mental burden of MS affect patients' health-related quality of life (HRQoL). However, there is limited research at the national level evaluating the humanistic burden among MS patients. OBJECTIVES This study evaluated the HRQoL and functional limitations among MS patients using ten years of national survey data. METHODS Guided by the conceptual framework of the Wilson and Cleary model, this study compared HRQoL between adults diagnosed with MS (Clinical Classification Code= "080″) and non-MS adults using the 2006-2015 Medical Expenditure Panel Survey (MEPS) data. The humanistic burden included HRQoL and functional limitations. The HRQoL was evaluated using physical component summary (PCS) and mental component summary (MCS) based on the Short Form Health Survey (SF-12). The study applied the multivariable Generalized Linear Models (GLM) to estimate the marginal differences in PCS and MCS based on the SF-12. In addition, seeking help for activities of daily living (ADL) and instrumental activities of daily living (IADL) were modeled with multivariable logistic regression. RESULTS According to the MEPS, the estimated annual prevalence of MS was 0.52 million (95% Confidence Interval [CI]: 0.42-0.60). MS patients were mainly female (71.90%), middle aged (50-64 years, 40.21%), non-Hispanic whites (78.29%), and enrolled in private insurance plans (68.93%). The average PCS scores in MS and non-MS groups were 35.70 and 49.48, respectively. The average MCS scores were 45.58 and 51.25 for MS and non-MS groups, respectively. In addition, 18.26% of MS patients sought help for ADL, and 27.08% sought help for IADL. After adjusting for individual, biological, and environmental characteristics, the multivariable GLM with Poisson distribution indicated that the marginal difference of PCS score was 11.10 (95% CI: 9.50-12.61) units lower, and the MCS score was 4.89 (95% CI: 3.44-6.30) units lower among MS patients. In addition, MS patients were 17.32 (95% CI: 11.61-25.84) and 14.43 (95% CI: 10.09-20.65) times more likely to request assistance for ADL and IADL, respectively. CONCLUSIONS MS was associated with lower physical and mental HRQoL than their non-MS counterparts and MS patients were more likely to request help for ADL and IADL. More work is needed to evaluate the effect of treatment strategies on improving the HRQoL and functional limitations in MS.
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An Accurate Multiple Sclerosis Detection Model Based on Exemplar Multiple Parameters Local Phase Quantization: ExMPLPQ. APPLIED SCIENCES-BASEL 2022. [DOI: 10.3390/app12104920] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Multiple sclerosis (MS) is a chronic demyelinating condition characterized by plaques in the white matter of the central nervous system that can be detected using magnetic resonance imaging (MRI). Many deep learning models for automated MS detection based on MRI have been presented in the literature. We developed a computationally lightweight machine learning model for MS diagnosis using a novel handcrafted feature engineering approach. The study dataset comprised axial and sagittal brain MRI images that were prospectively acquired from 72 MS and 59 healthy subjects who attended the Ozal University Medical Faculty in 2021. The dataset was divided into three study subsets: axial images only (n = 1652), sagittal images only (n = 1775), and combined axial and sagittal images (n = 3427) of both MS and healthy classes. All images were resized to 224 × 224. Subsequently, the features were generated with a fixed-size patch-based (exemplar) feature extraction model based on local phase quantization (LPQ) with three-parameter settings. The resulting exemplar multiple parameters LPQ (ExMPLPQ) features were concatenated to form a large final feature vector. The top discriminative features were selected using iterative neighborhood component analysis (INCA). Finally, a k-nearest neighbor (kNN) algorithm, Fine kNN, was deployed to perform binary classification of the brain images into MS vs. healthy classes. The ExMPLPQ-based model attained 98.37%, 97.75%, and 98.22% binary classification accuracy rates for axial, sagittal, and hybrid datasets, respectively, using Fine kNN with 10-fold cross-validation. Furthermore, our model outperformed 19 established pre-trained deep learning models that were trained and tested with the same data. Unlike deep models, the ExMPLPQ-based model is computationally lightweight yet highly accurate. It has the potential to be implemented as an automated diagnostic tool to screen brain MRIs for white matter lesions in suspected MS patients.
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Ji Q, Dong H, Lee H, Liu Z, Tong Y, Elkin K, Haddad Y, Geng X, Ding Y. Clinical Characteristics and Outcomes of Multiple Sclerosis and Neuromyelitis Optica Spectrum Disorder With Brainstem Lesions as Heralding Prodrome. Front Neurol 2022; 13:836337. [PMID: 35614913 PMCID: PMC9124782 DOI: 10.3389/fneur.2022.836337] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Accepted: 02/28/2022] [Indexed: 12/14/2022] Open
Abstract
ObjectiveThe present study sought to differentiate multiple sclerosis and neuromyelitis optica spectrum disorder patients at their first attack by describing and distinguishing their clinical features, radiographic characteristics, and immunologic characteristics of serum and cerebrospinal fluid.MethodsWe retrospectively studied 58 patients with multiple sclerosis (MS) and 52 patients with neuromyelitis optica spectrum disorder (NMOSD) by referencing brainstem lesions as the prodromal events. Their demographics and presentation at the time of the first attack was evaluated including their gender, age, clinical features of the first attack, the expanded disability status scale (EDSS), brainstem lesion(s) by head MRI, and immunological indices of serum and cerebrospinal fluid.ResultsThe NMOSD group had more female patients (4.8 vs. 1.9, p < 0.05), and was older than the MS group (37.81 ± 16.60 vs. 27.57 ± 11.17, p <0.001). NMOSD patients also had a significantly higher association with autoimmune diseases or positive autoimmune antibodies (p < 0.01). There was no significant difference in the EDSS scores between the two groups (p = 0.420). Central hiccups, vomiting, and pyramidal tract signs were more common in the NMOSD group than the MS group (p < 0.001, p < 0.001, p < 0.01), while eye movement abnormalities were more common with MS (p < 0.01). There were no significant differences in other clinical manifestations such as vertigo, diplopia, limb weakness, numbness, and eating difficulty. MS patients were more likely to have midbrain and pons imaging lesions (p < 0.001, p < 0.001), while NMOSD patients had more lesions in the medulla oblongata (p < 0.001). The lesions in the MS group were mostly located in the periphery, while those in the NMOSD group were centrally located (p < 0.001, p < 0.001). Patchy lesions were more common in MS patients (p < 0.001), while large lesions were more common in the NMOSD group (p < 0.001). Finally, serum AQP4 Ab was found only in the NMOSD group (p < 0.001).ConclusionPatients with MS and NMOSD have differentiating clinical manifestations at the time of their first brainstem lesions which include central hiccups, vomiting, pyramidal tract signs, and abnormal eye movements. Additionally, distinct imaging manifestations such as lesion location(s) and morphology may also aid in the development of pathognomonic criteria leading to timely initial diagnosis of MS and NMOSD.
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Affiliation(s)
- Qiling Ji
- Department of Neurology, Beijing Luhe Hospital, Capital Medical University, Beijing, China
| | - Huiqing Dong
- Department of Neurology, Xuanwu Hospital, Capital Medical University, Beijing, China
- *Correspondence: Huiqing Dong
| | - Hangil Lee
- Department of Neurosurgery, Wayne State University School of Medicine, Detroit, MI, United States
| | - Zheng Liu
- Department of Neurology, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Yanna Tong
- Department of Neurology, Beijing Luhe Hospital, Capital Medical University, Beijing, China
| | - Kenneth Elkin
- Department of Neurosurgery, Wayne State University School of Medicine, Detroit, MI, United States
| | - Yazeed Haddad
- Department of Neurosurgery, Wayne State University School of Medicine, Detroit, MI, United States
| | - Xiaokun Geng
- Department of Neurology, Beijing Luhe Hospital, Capital Medical University, Beijing, China
- Department of Neurosurgery, Wayne State University School of Medicine, Detroit, MI, United States
- Xiaokun Geng
| | - Yuchuan Ding
- Department of Neurosurgery, Wayne State University School of Medicine, Detroit, MI, United States
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Dietrich M, Hecker C, Martin E, Langui D, Gliem M, Stankoff B, Lubetzki C, Gruchot J, Göttle P, Issberner A, Nasiri M, Ramseier P, Beerli C, Tisserand S, Beckmann N, Shimshek D, Petzsch P, Akbar D, Levkau B, Stark H, Köhrer K, Hartung HP, Küry P, Meuth SG, Bigaud M, Zalc B, Albrecht P. Increased Remyelination and Proregenerative Microglia Under Siponimod Therapy in Mechanistic Models. NEUROLOGY(R) NEUROIMMUNOLOGY & NEUROINFLAMMATION 2022; 9:9/3/e1161. [PMID: 35354603 PMCID: PMC8969301 DOI: 10.1212/nxi.0000000000001161] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Accepted: 01/27/2022] [Indexed: 12/11/2022]
Abstract
Background and Objectives Siponimod is an oral, selective sphingosine-1-phosphate receptor-1/5 modulator approved for treatment of multiple sclerosis. Methods Mouse MRI was used to investigate remyelination in the cuprizone model. We then used a conditional demyelination Xenopus laevis model to assess the dose-response of siponimod on remyelination. In experimental autoimmune encephalomyelitis–optic neuritis (EAEON) in C57Bl/6J mice, we monitored the retinal thickness and the visual acuity using optical coherence tomography and optomotor response. Optic nerve inflammatory infiltrates, demyelination, and microglial and oligodendroglial differentiation were assessed by immunohistochemistry, quantitative real-time PCR, and bulk RNA sequencing. Results An increased remyelination was observed in the cuprizone model. Siponimod treatment of demyelinated tadpoles improved remyelination in comparison to control in a bell-shaped dose-response curve. Siponimod in the EAEON model attenuated the clinical score, reduced the retinal degeneration, and improved the visual function after prophylactic and therapeutic treatment, also in a bell-shaped manner. Inflammatory infiltrates and demyelination of the optic nerve were reduced, the latter even after therapeutic treatment, which also shifted microglial differentiation to a promyelinating phenotype. Discussion These results confirm the immunomodulatory effects of siponimod and suggest additional regenerative and promyelinating effects, which follow the dynamics of a bell-shaped curve with high being less efficient than low concentrations.
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Affiliation(s)
- Michael Dietrich
- From the Department of Neurology (M.D., C.H., M.G., J.G., P.G., A.I., M.N., H.-P.H., P.K., S.G.M.), Heinrich Heine University Düsseldorf, Medical Faculty (P.A.), Düsseldorf, Germany; Sorbonne Université (E.M., D.L., B.S., C.L., D.A., B.Z.), Inserm, CNRS, Institut du Cerveau, Pitié-Salpêtrière Hospital; AP-HP (B.S.), Saint-Antoine Hospital; AP-HP (C.L.), Pitié-Salpêtrière Hospital, Paris, France; Novartis Institutes for BioMedical Research (P.R., C.B., S.T., N.B., D.S., M.B.), Basel, Switzerland; Biological and Medical Research Center (BMFZ) (P.P., K.K.), Heinrich Heine University Düsseldorf, Medical Faculty; Institute for Molecular Medicine III (B.L.), University Hospital Düsseldorf and Heinrich Heine University Düsseldorf; Institute of Pharmaceutical and Medicinal Chemistry (H.S.), Heinrich Heine University Düsseldorf, Duesseldorf, Germany; Brain and Mind Center (H.-P.H.), University of Sydney, NSW, Australia; and Medical University of Vienna (H.-P.H.), Vienna, Austria
| | - Christina Hecker
- From the Department of Neurology (M.D., C.H., M.G., J.G., P.G., A.I., M.N., H.-P.H., P.K., S.G.M.), Heinrich Heine University Düsseldorf, Medical Faculty (P.A.), Düsseldorf, Germany; Sorbonne Université (E.M., D.L., B.S., C.L., D.A., B.Z.), Inserm, CNRS, Institut du Cerveau, Pitié-Salpêtrière Hospital; AP-HP (B.S.), Saint-Antoine Hospital; AP-HP (C.L.), Pitié-Salpêtrière Hospital, Paris, France; Novartis Institutes for BioMedical Research (P.R., C.B., S.T., N.B., D.S., M.B.), Basel, Switzerland; Biological and Medical Research Center (BMFZ) (P.P., K.K.), Heinrich Heine University Düsseldorf, Medical Faculty; Institute for Molecular Medicine III (B.L.), University Hospital Düsseldorf and Heinrich Heine University Düsseldorf; Institute of Pharmaceutical and Medicinal Chemistry (H.S.), Heinrich Heine University Düsseldorf, Duesseldorf, Germany; Brain and Mind Center (H.-P.H.), University of Sydney, NSW, Australia; and Medical University of Vienna (H.-P.H.), Vienna, Austria
| | - Elodie Martin
- From the Department of Neurology (M.D., C.H., M.G., J.G., P.G., A.I., M.N., H.-P.H., P.K., S.G.M.), Heinrich Heine University Düsseldorf, Medical Faculty (P.A.), Düsseldorf, Germany; Sorbonne Université (E.M., D.L., B.S., C.L., D.A., B.Z.), Inserm, CNRS, Institut du Cerveau, Pitié-Salpêtrière Hospital; AP-HP (B.S.), Saint-Antoine Hospital; AP-HP (C.L.), Pitié-Salpêtrière Hospital, Paris, France; Novartis Institutes for BioMedical Research (P.R., C.B., S.T., N.B., D.S., M.B.), Basel, Switzerland; Biological and Medical Research Center (BMFZ) (P.P., K.K.), Heinrich Heine University Düsseldorf, Medical Faculty; Institute for Molecular Medicine III (B.L.), University Hospital Düsseldorf and Heinrich Heine University Düsseldorf; Institute of Pharmaceutical and Medicinal Chemistry (H.S.), Heinrich Heine University Düsseldorf, Duesseldorf, Germany; Brain and Mind Center (H.-P.H.), University of Sydney, NSW, Australia; and Medical University of Vienna (H.-P.H.), Vienna, Austria
| | - Dominique Langui
- From the Department of Neurology (M.D., C.H., M.G., J.G., P.G., A.I., M.N., H.-P.H., P.K., S.G.M.), Heinrich Heine University Düsseldorf, Medical Faculty (P.A.), Düsseldorf, Germany; Sorbonne Université (E.M., D.L., B.S., C.L., D.A., B.Z.), Inserm, CNRS, Institut du Cerveau, Pitié-Salpêtrière Hospital; AP-HP (B.S.), Saint-Antoine Hospital; AP-HP (C.L.), Pitié-Salpêtrière Hospital, Paris, France; Novartis Institutes for BioMedical Research (P.R., C.B., S.T., N.B., D.S., M.B.), Basel, Switzerland; Biological and Medical Research Center (BMFZ) (P.P., K.K.), Heinrich Heine University Düsseldorf, Medical Faculty; Institute for Molecular Medicine III (B.L.), University Hospital Düsseldorf and Heinrich Heine University Düsseldorf; Institute of Pharmaceutical and Medicinal Chemistry (H.S.), Heinrich Heine University Düsseldorf, Duesseldorf, Germany; Brain and Mind Center (H.-P.H.), University of Sydney, NSW, Australia; and Medical University of Vienna (H.-P.H.), Vienna, Austria
| | - Michael Gliem
- From the Department of Neurology (M.D., C.H., M.G., J.G., P.G., A.I., M.N., H.-P.H., P.K., S.G.M.), Heinrich Heine University Düsseldorf, Medical Faculty (P.A.), Düsseldorf, Germany; Sorbonne Université (E.M., D.L., B.S., C.L., D.A., B.Z.), Inserm, CNRS, Institut du Cerveau, Pitié-Salpêtrière Hospital; AP-HP (B.S.), Saint-Antoine Hospital; AP-HP (C.L.), Pitié-Salpêtrière Hospital, Paris, France; Novartis Institutes for BioMedical Research (P.R., C.B., S.T., N.B., D.S., M.B.), Basel, Switzerland; Biological and Medical Research Center (BMFZ) (P.P., K.K.), Heinrich Heine University Düsseldorf, Medical Faculty; Institute for Molecular Medicine III (B.L.), University Hospital Düsseldorf and Heinrich Heine University Düsseldorf; Institute of Pharmaceutical and Medicinal Chemistry (H.S.), Heinrich Heine University Düsseldorf, Duesseldorf, Germany; Brain and Mind Center (H.-P.H.), University of Sydney, NSW, Australia; and Medical University of Vienna (H.-P.H.), Vienna, Austria
| | - Bruno Stankoff
- From the Department of Neurology (M.D., C.H., M.G., J.G., P.G., A.I., M.N., H.-P.H., P.K., S.G.M.), Heinrich Heine University Düsseldorf, Medical Faculty (P.A.), Düsseldorf, Germany; Sorbonne Université (E.M., D.L., B.S., C.L., D.A., B.Z.), Inserm, CNRS, Institut du Cerveau, Pitié-Salpêtrière Hospital; AP-HP (B.S.), Saint-Antoine Hospital; AP-HP (C.L.), Pitié-Salpêtrière Hospital, Paris, France; Novartis Institutes for BioMedical Research (P.R., C.B., S.T., N.B., D.S., M.B.), Basel, Switzerland; Biological and Medical Research Center (BMFZ) (P.P., K.K.), Heinrich Heine University Düsseldorf, Medical Faculty; Institute for Molecular Medicine III (B.L.), University Hospital Düsseldorf and Heinrich Heine University Düsseldorf; Institute of Pharmaceutical and Medicinal Chemistry (H.S.), Heinrich Heine University Düsseldorf, Duesseldorf, Germany; Brain and Mind Center (H.-P.H.), University of Sydney, NSW, Australia; and Medical University of Vienna (H.-P.H.), Vienna, Austria
| | - Catherine Lubetzki
- From the Department of Neurology (M.D., C.H., M.G., J.G., P.G., A.I., M.N., H.-P.H., P.K., S.G.M.), Heinrich Heine University Düsseldorf, Medical Faculty (P.A.), Düsseldorf, Germany; Sorbonne Université (E.M., D.L., B.S., C.L., D.A., B.Z.), Inserm, CNRS, Institut du Cerveau, Pitié-Salpêtrière Hospital; AP-HP (B.S.), Saint-Antoine Hospital; AP-HP (C.L.), Pitié-Salpêtrière Hospital, Paris, France; Novartis Institutes for BioMedical Research (P.R., C.B., S.T., N.B., D.S., M.B.), Basel, Switzerland; Biological and Medical Research Center (BMFZ) (P.P., K.K.), Heinrich Heine University Düsseldorf, Medical Faculty; Institute for Molecular Medicine III (B.L.), University Hospital Düsseldorf and Heinrich Heine University Düsseldorf; Institute of Pharmaceutical and Medicinal Chemistry (H.S.), Heinrich Heine University Düsseldorf, Duesseldorf, Germany; Brain and Mind Center (H.-P.H.), University of Sydney, NSW, Australia; and Medical University of Vienna (H.-P.H.), Vienna, Austria
| | - Joel Gruchot
- From the Department of Neurology (M.D., C.H., M.G., J.G., P.G., A.I., M.N., H.-P.H., P.K., S.G.M.), Heinrich Heine University Düsseldorf, Medical Faculty (P.A.), Düsseldorf, Germany; Sorbonne Université (E.M., D.L., B.S., C.L., D.A., B.Z.), Inserm, CNRS, Institut du Cerveau, Pitié-Salpêtrière Hospital; AP-HP (B.S.), Saint-Antoine Hospital; AP-HP (C.L.), Pitié-Salpêtrière Hospital, Paris, France; Novartis Institutes for BioMedical Research (P.R., C.B., S.T., N.B., D.S., M.B.), Basel, Switzerland; Biological and Medical Research Center (BMFZ) (P.P., K.K.), Heinrich Heine University Düsseldorf, Medical Faculty; Institute for Molecular Medicine III (B.L.), University Hospital Düsseldorf and Heinrich Heine University Düsseldorf; Institute of Pharmaceutical and Medicinal Chemistry (H.S.), Heinrich Heine University Düsseldorf, Duesseldorf, Germany; Brain and Mind Center (H.-P.H.), University of Sydney, NSW, Australia; and Medical University of Vienna (H.-P.H.), Vienna, Austria
| | - Peter Göttle
- From the Department of Neurology (M.D., C.H., M.G., J.G., P.G., A.I., M.N., H.-P.H., P.K., S.G.M.), Heinrich Heine University Düsseldorf, Medical Faculty (P.A.), Düsseldorf, Germany; Sorbonne Université (E.M., D.L., B.S., C.L., D.A., B.Z.), Inserm, CNRS, Institut du Cerveau, Pitié-Salpêtrière Hospital; AP-HP (B.S.), Saint-Antoine Hospital; AP-HP (C.L.), Pitié-Salpêtrière Hospital, Paris, France; Novartis Institutes for BioMedical Research (P.R., C.B., S.T., N.B., D.S., M.B.), Basel, Switzerland; Biological and Medical Research Center (BMFZ) (P.P., K.K.), Heinrich Heine University Düsseldorf, Medical Faculty; Institute for Molecular Medicine III (B.L.), University Hospital Düsseldorf and Heinrich Heine University Düsseldorf; Institute of Pharmaceutical and Medicinal Chemistry (H.S.), Heinrich Heine University Düsseldorf, Duesseldorf, Germany; Brain and Mind Center (H.-P.H.), University of Sydney, NSW, Australia; and Medical University of Vienna (H.-P.H.), Vienna, Austria
| | - Andrea Issberner
- From the Department of Neurology (M.D., C.H., M.G., J.G., P.G., A.I., M.N., H.-P.H., P.K., S.G.M.), Heinrich Heine University Düsseldorf, Medical Faculty (P.A.), Düsseldorf, Germany; Sorbonne Université (E.M., D.L., B.S., C.L., D.A., B.Z.), Inserm, CNRS, Institut du Cerveau, Pitié-Salpêtrière Hospital; AP-HP (B.S.), Saint-Antoine Hospital; AP-HP (C.L.), Pitié-Salpêtrière Hospital, Paris, France; Novartis Institutes for BioMedical Research (P.R., C.B., S.T., N.B., D.S., M.B.), Basel, Switzerland; Biological and Medical Research Center (BMFZ) (P.P., K.K.), Heinrich Heine University Düsseldorf, Medical Faculty; Institute for Molecular Medicine III (B.L.), University Hospital Düsseldorf and Heinrich Heine University Düsseldorf; Institute of Pharmaceutical and Medicinal Chemistry (H.S.), Heinrich Heine University Düsseldorf, Duesseldorf, Germany; Brain and Mind Center (H.-P.H.), University of Sydney, NSW, Australia; and Medical University of Vienna (H.-P.H.), Vienna, Austria
| | - Milad Nasiri
- From the Department of Neurology (M.D., C.H., M.G., J.G., P.G., A.I., M.N., H.-P.H., P.K., S.G.M.), Heinrich Heine University Düsseldorf, Medical Faculty (P.A.), Düsseldorf, Germany; Sorbonne Université (E.M., D.L., B.S., C.L., D.A., B.Z.), Inserm, CNRS, Institut du Cerveau, Pitié-Salpêtrière Hospital; AP-HP (B.S.), Saint-Antoine Hospital; AP-HP (C.L.), Pitié-Salpêtrière Hospital, Paris, France; Novartis Institutes for BioMedical Research (P.R., C.B., S.T., N.B., D.S., M.B.), Basel, Switzerland; Biological and Medical Research Center (BMFZ) (P.P., K.K.), Heinrich Heine University Düsseldorf, Medical Faculty; Institute for Molecular Medicine III (B.L.), University Hospital Düsseldorf and Heinrich Heine University Düsseldorf; Institute of Pharmaceutical and Medicinal Chemistry (H.S.), Heinrich Heine University Düsseldorf, Duesseldorf, Germany; Brain and Mind Center (H.-P.H.), University of Sydney, NSW, Australia; and Medical University of Vienna (H.-P.H.), Vienna, Austria
| | - Pamela Ramseier
- From the Department of Neurology (M.D., C.H., M.G., J.G., P.G., A.I., M.N., H.-P.H., P.K., S.G.M.), Heinrich Heine University Düsseldorf, Medical Faculty (P.A.), Düsseldorf, Germany; Sorbonne Université (E.M., D.L., B.S., C.L., D.A., B.Z.), Inserm, CNRS, Institut du Cerveau, Pitié-Salpêtrière Hospital; AP-HP (B.S.), Saint-Antoine Hospital; AP-HP (C.L.), Pitié-Salpêtrière Hospital, Paris, France; Novartis Institutes for BioMedical Research (P.R., C.B., S.T., N.B., D.S., M.B.), Basel, Switzerland; Biological and Medical Research Center (BMFZ) (P.P., K.K.), Heinrich Heine University Düsseldorf, Medical Faculty; Institute for Molecular Medicine III (B.L.), University Hospital Düsseldorf and Heinrich Heine University Düsseldorf; Institute of Pharmaceutical and Medicinal Chemistry (H.S.), Heinrich Heine University Düsseldorf, Duesseldorf, Germany; Brain and Mind Center (H.-P.H.), University of Sydney, NSW, Australia; and Medical University of Vienna (H.-P.H.), Vienna, Austria
| | - Christian Beerli
- From the Department of Neurology (M.D., C.H., M.G., J.G., P.G., A.I., M.N., H.-P.H., P.K., S.G.M.), Heinrich Heine University Düsseldorf, Medical Faculty (P.A.), Düsseldorf, Germany; Sorbonne Université (E.M., D.L., B.S., C.L., D.A., B.Z.), Inserm, CNRS, Institut du Cerveau, Pitié-Salpêtrière Hospital; AP-HP (B.S.), Saint-Antoine Hospital; AP-HP (C.L.), Pitié-Salpêtrière Hospital, Paris, France; Novartis Institutes for BioMedical Research (P.R., C.B., S.T., N.B., D.S., M.B.), Basel, Switzerland; Biological and Medical Research Center (BMFZ) (P.P., K.K.), Heinrich Heine University Düsseldorf, Medical Faculty; Institute for Molecular Medicine III (B.L.), University Hospital Düsseldorf and Heinrich Heine University Düsseldorf; Institute of Pharmaceutical and Medicinal Chemistry (H.S.), Heinrich Heine University Düsseldorf, Duesseldorf, Germany; Brain and Mind Center (H.-P.H.), University of Sydney, NSW, Australia; and Medical University of Vienna (H.-P.H.), Vienna, Austria
| | - Sarah Tisserand
- From the Department of Neurology (M.D., C.H., M.G., J.G., P.G., A.I., M.N., H.-P.H., P.K., S.G.M.), Heinrich Heine University Düsseldorf, Medical Faculty (P.A.), Düsseldorf, Germany; Sorbonne Université (E.M., D.L., B.S., C.L., D.A., B.Z.), Inserm, CNRS, Institut du Cerveau, Pitié-Salpêtrière Hospital; AP-HP (B.S.), Saint-Antoine Hospital; AP-HP (C.L.), Pitié-Salpêtrière Hospital, Paris, France; Novartis Institutes for BioMedical Research (P.R., C.B., S.T., N.B., D.S., M.B.), Basel, Switzerland; Biological and Medical Research Center (BMFZ) (P.P., K.K.), Heinrich Heine University Düsseldorf, Medical Faculty; Institute for Molecular Medicine III (B.L.), University Hospital Düsseldorf and Heinrich Heine University Düsseldorf; Institute of Pharmaceutical and Medicinal Chemistry (H.S.), Heinrich Heine University Düsseldorf, Duesseldorf, Germany; Brain and Mind Center (H.-P.H.), University of Sydney, NSW, Australia; and Medical University of Vienna (H.-P.H.), Vienna, Austria
| | - Nicolau Beckmann
- From the Department of Neurology (M.D., C.H., M.G., J.G., P.G., A.I., M.N., H.-P.H., P.K., S.G.M.), Heinrich Heine University Düsseldorf, Medical Faculty (P.A.), Düsseldorf, Germany; Sorbonne Université (E.M., D.L., B.S., C.L., D.A., B.Z.), Inserm, CNRS, Institut du Cerveau, Pitié-Salpêtrière Hospital; AP-HP (B.S.), Saint-Antoine Hospital; AP-HP (C.L.), Pitié-Salpêtrière Hospital, Paris, France; Novartis Institutes for BioMedical Research (P.R., C.B., S.T., N.B., D.S., M.B.), Basel, Switzerland; Biological and Medical Research Center (BMFZ) (P.P., K.K.), Heinrich Heine University Düsseldorf, Medical Faculty; Institute for Molecular Medicine III (B.L.), University Hospital Düsseldorf and Heinrich Heine University Düsseldorf; Institute of Pharmaceutical and Medicinal Chemistry (H.S.), Heinrich Heine University Düsseldorf, Duesseldorf, Germany; Brain and Mind Center (H.-P.H.), University of Sydney, NSW, Australia; and Medical University of Vienna (H.-P.H.), Vienna, Austria
| | - Derya Shimshek
- From the Department of Neurology (M.D., C.H., M.G., J.G., P.G., A.I., M.N., H.-P.H., P.K., S.G.M.), Heinrich Heine University Düsseldorf, Medical Faculty (P.A.), Düsseldorf, Germany; Sorbonne Université (E.M., D.L., B.S., C.L., D.A., B.Z.), Inserm, CNRS, Institut du Cerveau, Pitié-Salpêtrière Hospital; AP-HP (B.S.), Saint-Antoine Hospital; AP-HP (C.L.), Pitié-Salpêtrière Hospital, Paris, France; Novartis Institutes for BioMedical Research (P.R., C.B., S.T., N.B., D.S., M.B.), Basel, Switzerland; Biological and Medical Research Center (BMFZ) (P.P., K.K.), Heinrich Heine University Düsseldorf, Medical Faculty; Institute for Molecular Medicine III (B.L.), University Hospital Düsseldorf and Heinrich Heine University Düsseldorf; Institute of Pharmaceutical and Medicinal Chemistry (H.S.), Heinrich Heine University Düsseldorf, Duesseldorf, Germany; Brain and Mind Center (H.-P.H.), University of Sydney, NSW, Australia; and Medical University of Vienna (H.-P.H.), Vienna, Austria
| | - Patrick Petzsch
- From the Department of Neurology (M.D., C.H., M.G., J.G., P.G., A.I., M.N., H.-P.H., P.K., S.G.M.), Heinrich Heine University Düsseldorf, Medical Faculty (P.A.), Düsseldorf, Germany; Sorbonne Université (E.M., D.L., B.S., C.L., D.A., B.Z.), Inserm, CNRS, Institut du Cerveau, Pitié-Salpêtrière Hospital; AP-HP (B.S.), Saint-Antoine Hospital; AP-HP (C.L.), Pitié-Salpêtrière Hospital, Paris, France; Novartis Institutes for BioMedical Research (P.R., C.B., S.T., N.B., D.S., M.B.), Basel, Switzerland; Biological and Medical Research Center (BMFZ) (P.P., K.K.), Heinrich Heine University Düsseldorf, Medical Faculty; Institute for Molecular Medicine III (B.L.), University Hospital Düsseldorf and Heinrich Heine University Düsseldorf; Institute of Pharmaceutical and Medicinal Chemistry (H.S.), Heinrich Heine University Düsseldorf, Duesseldorf, Germany; Brain and Mind Center (H.-P.H.), University of Sydney, NSW, Australia; and Medical University of Vienna (H.-P.H.), Vienna, Austria
| | - David Akbar
- From the Department of Neurology (M.D., C.H., M.G., J.G., P.G., A.I., M.N., H.-P.H., P.K., S.G.M.), Heinrich Heine University Düsseldorf, Medical Faculty (P.A.), Düsseldorf, Germany; Sorbonne Université (E.M., D.L., B.S., C.L., D.A., B.Z.), Inserm, CNRS, Institut du Cerveau, Pitié-Salpêtrière Hospital; AP-HP (B.S.), Saint-Antoine Hospital; AP-HP (C.L.), Pitié-Salpêtrière Hospital, Paris, France; Novartis Institutes for BioMedical Research (P.R., C.B., S.T., N.B., D.S., M.B.), Basel, Switzerland; Biological and Medical Research Center (BMFZ) (P.P., K.K.), Heinrich Heine University Düsseldorf, Medical Faculty; Institute for Molecular Medicine III (B.L.), University Hospital Düsseldorf and Heinrich Heine University Düsseldorf; Institute of Pharmaceutical and Medicinal Chemistry (H.S.), Heinrich Heine University Düsseldorf, Duesseldorf, Germany; Brain and Mind Center (H.-P.H.), University of Sydney, NSW, Australia; and Medical University of Vienna (H.-P.H.), Vienna, Austria
| | - Bodo Levkau
- From the Department of Neurology (M.D., C.H., M.G., J.G., P.G., A.I., M.N., H.-P.H., P.K., S.G.M.), Heinrich Heine University Düsseldorf, Medical Faculty (P.A.), Düsseldorf, Germany; Sorbonne Université (E.M., D.L., B.S., C.L., D.A., B.Z.), Inserm, CNRS, Institut du Cerveau, Pitié-Salpêtrière Hospital; AP-HP (B.S.), Saint-Antoine Hospital; AP-HP (C.L.), Pitié-Salpêtrière Hospital, Paris, France; Novartis Institutes for BioMedical Research (P.R., C.B., S.T., N.B., D.S., M.B.), Basel, Switzerland; Biological and Medical Research Center (BMFZ) (P.P., K.K.), Heinrich Heine University Düsseldorf, Medical Faculty; Institute for Molecular Medicine III (B.L.), University Hospital Düsseldorf and Heinrich Heine University Düsseldorf; Institute of Pharmaceutical and Medicinal Chemistry (H.S.), Heinrich Heine University Düsseldorf, Duesseldorf, Germany; Brain and Mind Center (H.-P.H.), University of Sydney, NSW, Australia; and Medical University of Vienna (H.-P.H.), Vienna, Austria
| | - Holger Stark
- From the Department of Neurology (M.D., C.H., M.G., J.G., P.G., A.I., M.N., H.-P.H., P.K., S.G.M.), Heinrich Heine University Düsseldorf, Medical Faculty (P.A.), Düsseldorf, Germany; Sorbonne Université (E.M., D.L., B.S., C.L., D.A., B.Z.), Inserm, CNRS, Institut du Cerveau, Pitié-Salpêtrière Hospital; AP-HP (B.S.), Saint-Antoine Hospital; AP-HP (C.L.), Pitié-Salpêtrière Hospital, Paris, France; Novartis Institutes for BioMedical Research (P.R., C.B., S.T., N.B., D.S., M.B.), Basel, Switzerland; Biological and Medical Research Center (BMFZ) (P.P., K.K.), Heinrich Heine University Düsseldorf, Medical Faculty; Institute for Molecular Medicine III (B.L.), University Hospital Düsseldorf and Heinrich Heine University Düsseldorf; Institute of Pharmaceutical and Medicinal Chemistry (H.S.), Heinrich Heine University Düsseldorf, Duesseldorf, Germany; Brain and Mind Center (H.-P.H.), University of Sydney, NSW, Australia; and Medical University of Vienna (H.-P.H.), Vienna, Austria
| | - Karl Köhrer
- From the Department of Neurology (M.D., C.H., M.G., J.G., P.G., A.I., M.N., H.-P.H., P.K., S.G.M.), Heinrich Heine University Düsseldorf, Medical Faculty (P.A.), Düsseldorf, Germany; Sorbonne Université (E.M., D.L., B.S., C.L., D.A., B.Z.), Inserm, CNRS, Institut du Cerveau, Pitié-Salpêtrière Hospital; AP-HP (B.S.), Saint-Antoine Hospital; AP-HP (C.L.), Pitié-Salpêtrière Hospital, Paris, France; Novartis Institutes for BioMedical Research (P.R., C.B., S.T., N.B., D.S., M.B.), Basel, Switzerland; Biological and Medical Research Center (BMFZ) (P.P., K.K.), Heinrich Heine University Düsseldorf, Medical Faculty; Institute for Molecular Medicine III (B.L.), University Hospital Düsseldorf and Heinrich Heine University Düsseldorf; Institute of Pharmaceutical and Medicinal Chemistry (H.S.), Heinrich Heine University Düsseldorf, Duesseldorf, Germany; Brain and Mind Center (H.-P.H.), University of Sydney, NSW, Australia; and Medical University of Vienna (H.-P.H.), Vienna, Austria
| | - Hans-Peter Hartung
- From the Department of Neurology (M.D., C.H., M.G., J.G., P.G., A.I., M.N., H.-P.H., P.K., S.G.M.), Heinrich Heine University Düsseldorf, Medical Faculty (P.A.), Düsseldorf, Germany; Sorbonne Université (E.M., D.L., B.S., C.L., D.A., B.Z.), Inserm, CNRS, Institut du Cerveau, Pitié-Salpêtrière Hospital; AP-HP (B.S.), Saint-Antoine Hospital; AP-HP (C.L.), Pitié-Salpêtrière Hospital, Paris, France; Novartis Institutes for BioMedical Research (P.R., C.B., S.T., N.B., D.S., M.B.), Basel, Switzerland; Biological and Medical Research Center (BMFZ) (P.P., K.K.), Heinrich Heine University Düsseldorf, Medical Faculty; Institute for Molecular Medicine III (B.L.), University Hospital Düsseldorf and Heinrich Heine University Düsseldorf; Institute of Pharmaceutical and Medicinal Chemistry (H.S.), Heinrich Heine University Düsseldorf, Duesseldorf, Germany; Brain and Mind Center (H.-P.H.), University of Sydney, NSW, Australia; and Medical University of Vienna (H.-P.H.), Vienna, Austria
| | - Patrick Küry
- From the Department of Neurology (M.D., C.H., M.G., J.G., P.G., A.I., M.N., H.-P.H., P.K., S.G.M.), Heinrich Heine University Düsseldorf, Medical Faculty (P.A.), Düsseldorf, Germany; Sorbonne Université (E.M., D.L., B.S., C.L., D.A., B.Z.), Inserm, CNRS, Institut du Cerveau, Pitié-Salpêtrière Hospital; AP-HP (B.S.), Saint-Antoine Hospital; AP-HP (C.L.), Pitié-Salpêtrière Hospital, Paris, France; Novartis Institutes for BioMedical Research (P.R., C.B., S.T., N.B., D.S., M.B.), Basel, Switzerland; Biological and Medical Research Center (BMFZ) (P.P., K.K.), Heinrich Heine University Düsseldorf, Medical Faculty; Institute for Molecular Medicine III (B.L.), University Hospital Düsseldorf and Heinrich Heine University Düsseldorf; Institute of Pharmaceutical and Medicinal Chemistry (H.S.), Heinrich Heine University Düsseldorf, Duesseldorf, Germany; Brain and Mind Center (H.-P.H.), University of Sydney, NSW, Australia; and Medical University of Vienna (H.-P.H.), Vienna, Austria
| | - Sven Günther Meuth
- From the Department of Neurology (M.D., C.H., M.G., J.G., P.G., A.I., M.N., H.-P.H., P.K., S.G.M.), Heinrich Heine University Düsseldorf, Medical Faculty (P.A.), Düsseldorf, Germany; Sorbonne Université (E.M., D.L., B.S., C.L., D.A., B.Z.), Inserm, CNRS, Institut du Cerveau, Pitié-Salpêtrière Hospital; AP-HP (B.S.), Saint-Antoine Hospital; AP-HP (C.L.), Pitié-Salpêtrière Hospital, Paris, France; Novartis Institutes for BioMedical Research (P.R., C.B., S.T., N.B., D.S., M.B.), Basel, Switzerland; Biological and Medical Research Center (BMFZ) (P.P., K.K.), Heinrich Heine University Düsseldorf, Medical Faculty; Institute for Molecular Medicine III (B.L.), University Hospital Düsseldorf and Heinrich Heine University Düsseldorf; Institute of Pharmaceutical and Medicinal Chemistry (H.S.), Heinrich Heine University Düsseldorf, Duesseldorf, Germany; Brain and Mind Center (H.-P.H.), University of Sydney, NSW, Australia; and Medical University of Vienna (H.-P.H.), Vienna, Austria
| | - Marc Bigaud
- From the Department of Neurology (M.D., C.H., M.G., J.G., P.G., A.I., M.N., H.-P.H., P.K., S.G.M.), Heinrich Heine University Düsseldorf, Medical Faculty (P.A.), Düsseldorf, Germany; Sorbonne Université (E.M., D.L., B.S., C.L., D.A., B.Z.), Inserm, CNRS, Institut du Cerveau, Pitié-Salpêtrière Hospital; AP-HP (B.S.), Saint-Antoine Hospital; AP-HP (C.L.), Pitié-Salpêtrière Hospital, Paris, France; Novartis Institutes for BioMedical Research (P.R., C.B., S.T., N.B., D.S., M.B.), Basel, Switzerland; Biological and Medical Research Center (BMFZ) (P.P., K.K.), Heinrich Heine University Düsseldorf, Medical Faculty; Institute for Molecular Medicine III (B.L.), University Hospital Düsseldorf and Heinrich Heine University Düsseldorf; Institute of Pharmaceutical and Medicinal Chemistry (H.S.), Heinrich Heine University Düsseldorf, Duesseldorf, Germany; Brain and Mind Center (H.-P.H.), University of Sydney, NSW, Australia; and Medical University of Vienna (H.-P.H.), Vienna, Austria
| | - Bernard Zalc
- From the Department of Neurology (M.D., C.H., M.G., J.G., P.G., A.I., M.N., H.-P.H., P.K., S.G.M.), Heinrich Heine University Düsseldorf, Medical Faculty (P.A.), Düsseldorf, Germany; Sorbonne Université (E.M., D.L., B.S., C.L., D.A., B.Z.), Inserm, CNRS, Institut du Cerveau, Pitié-Salpêtrière Hospital; AP-HP (B.S.), Saint-Antoine Hospital; AP-HP (C.L.), Pitié-Salpêtrière Hospital, Paris, France; Novartis Institutes for BioMedical Research (P.R., C.B., S.T., N.B., D.S., M.B.), Basel, Switzerland; Biological and Medical Research Center (BMFZ) (P.P., K.K.), Heinrich Heine University Düsseldorf, Medical Faculty; Institute for Molecular Medicine III (B.L.), University Hospital Düsseldorf and Heinrich Heine University Düsseldorf; Institute of Pharmaceutical and Medicinal Chemistry (H.S.), Heinrich Heine University Düsseldorf, Duesseldorf, Germany; Brain and Mind Center (H.-P.H.), University of Sydney, NSW, Australia; and Medical University of Vienna (H.-P.H.), Vienna, Austria
| | - Philipp Albrecht
- From the Department of Neurology (M.D., C.H., M.G., J.G., P.G., A.I., M.N., H.-P.H., P.K., S.G.M.), Heinrich Heine University Düsseldorf, Medical Faculty (P.A.), Düsseldorf, Germany; Sorbonne Université (E.M., D.L., B.S., C.L., D.A., B.Z.), Inserm, CNRS, Institut du Cerveau, Pitié-Salpêtrière Hospital; AP-HP (B.S.), Saint-Antoine Hospital; AP-HP (C.L.), Pitié-Salpêtrière Hospital, Paris, France; Novartis Institutes for BioMedical Research (P.R., C.B., S.T., N.B., D.S., M.B.), Basel, Switzerland; Biological and Medical Research Center (BMFZ) (P.P., K.K.), Heinrich Heine University Düsseldorf, Medical Faculty; Institute for Molecular Medicine III (B.L.), University Hospital Düsseldorf and Heinrich Heine University Düsseldorf; Institute of Pharmaceutical and Medicinal Chemistry (H.S.), Heinrich Heine University Düsseldorf, Duesseldorf, Germany; Brain and Mind Center (H.-P.H.), University of Sydney, NSW, Australia; and Medical University of Vienna (H.-P.H.), Vienna, Austria
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20
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Song Z, Krishnan A, Gaetano L, Tustison NJ, Clayton D, de Crespigny A, Bengtsson T, Jia X, Carano RAD. Deformation-based morphometry identifies deep brain structures protected by ocrelizumab. Neuroimage Clin 2022; 34:102959. [PMID: 35189455 PMCID: PMC8861820 DOI: 10.1016/j.nicl.2022.102959] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Revised: 02/02/2022] [Accepted: 02/05/2022] [Indexed: 11/24/2022]
Abstract
BACKGROUND Despite advancements in treatments for multiple sclerosis, insidious disease progression remains an area of unmet medical need, for which atrophy-based biomarkers may help better characterize the progressive biology. METHODS We developed and applied a method of longitudinal deformation-based morphometry to provide voxel-level assessments of brain volume changes and identified brain regions that were significantly impacted by disease-modifying therapy. RESULTS Using brain MRI data from two identically designed pivotal trials of relapsing multiple sclerosis (total N = 1483), we identified multiple deep brain regions, including the thalamus and brainstem, where volume loss over time was reduced by ocrelizumab (p < 0.05), a humanized anti-CD20 + monoclonal antibody approved for the treatment of multiple sclerosis. Additionally, identified brainstem shrinkage, as well as brain ventricle expansion, was associated with a greater risk for confirmed disability progression (p < 0.05). CONCLUSIONS The identification of deep brain structures has a strong implication for developing new biomarkers of brain atrophy reduction to advance drug development for multiple sclerosis, which has an increasing focus on targeting the progressive biology.
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Affiliation(s)
- Zhuang Song
- Personalized Healthcare Imaging, Genentech, Inc., South San Francisco, CA 94080, USA.
| | - Anithapriya Krishnan
- Personalized Healthcare Imaging, Genentech, Inc., South San Francisco, CA 94080, USA
| | - Laura Gaetano
- Product Development Medical Affair, F. Hoffmann-La Roche Ltd, CH-4070 Basel, Switzerland
| | - Nicholas J Tustison
- Department of Radiology and Medical Imaging, University of Virginia, Charlottesville, VA 22904, USA
| | - David Clayton
- Clinical Imaging Group, Genentech, Inc., South San Francisco, CA 94080, USA
| | - Alex de Crespigny
- Clinical Imaging Group, Genentech, Inc., South San Francisco, CA 94080, USA
| | - Thomas Bengtsson
- Personalized Healthcare Imaging, Genentech, Inc., South San Francisco, CA 94080, USA
| | - Xiaoming Jia
- Biomarker Development, Genentech, Inc., South San Francisco, CA 94080, USA
| | - Richard A D Carano
- Personalized Healthcare Imaging, Genentech, Inc., South San Francisco, CA 94080, USA
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21
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Lipsky P, Vallano PT, Smith J, Owens W, Snider D, Bandaru V, Sun Y, Wallingford R, Duncan J, Lewis J, Southall J, Ansari A, Li H. Demonstration of Equivalence of Generic Glatiramer Acetate and Copaxone ®. Front Pharmacol 2022; 12:760726. [PMID: 35002702 PMCID: PMC8740218 DOI: 10.3389/fphar.2021.760726] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Accepted: 11/26/2021] [Indexed: 11/24/2022] Open
Abstract
The objective of the current work was to demonstrate the equivalence of Mylan’s glatiramer acetate (GA) to that of the reference product Copaxone® (COP) using the four criteria for active pharmaceutical ingredient sameness as established by the US Food and Drug Administration (FDA). The reaction scheme used to produce Mylan’s glatiramer acetate (MGA) was compared with that of COP, determined from publicly available literature. Comparative analyses of MGA and COP were performed for physicochemical properties such as amino acid composition and molecular weight distributions. Spectroscopic fingerprints were obtained using circular dichroism spectroscopy. Structural signatures for polymerization and depolymerization including total diethylamine (DEA) content, relative proportions of DEA-adducted amino acids, and N-and C-terminal amino acid sequences were probed with an array of highly sensitive analytical methods. Biological activity of the products was assessed using validated murine Experimental autoimmune encephalomyelitis (EAE) models of multiple sclerosis. MGA is produced using the same fundamental reaction scheme as COP and was shown to have equivalent physicochemical properties and composition. Analyses of multiple structural signatures demonstrated equivalence of MGA and COP with regard to polymerization, depolymerization, and propagational shift. Examination of the impact on prevention and treatment of EAE demonstrated equivalence of MGA and COP with respect to both activity and toxicity, and thereby provided confirmatory evidence of sameness. A rigorous, multi-pronged comparison of MGA and COP produced using an equivalent fundamental reaction scheme demonstrated equivalent physicochemical properties, structural signatures for polymerization and depolymerization, and biological activity as evidenced by comparable effects in EAE. These studies demonstrate the equivalence of MGA and COP, establishing active ingredient sameness by the US Food and Drug Administration (FDA) criteria for GA, and provide compelling evidence that the FDA-approved generic MGA can be substituted for COP for the treatment of patients with relapsing-remitting MS.
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Affiliation(s)
- Peter Lipsky
- RILITE Research Institute, Charlottesville, VA, United States
| | - Patrick T Vallano
- Viatris Viatris Research and Development, Morgantown, WV, United States
| | - Jeffrey Smith
- Viatris Viatris Research and Development, Morgantown, WV, United States
| | - Walter Owens
- Viatris Viatris Research and Development, Morgantown, WV, United States
| | - Daniel Snider
- Viatris Viatris Research and Development, Morgantown, WV, United States
| | - Viswanath Bandaru
- Viatris Viatris Research and Development, Morgantown, WV, United States
| | - Yunfu Sun
- Viatris Viatris Research and Development, Morgantown, WV, United States
| | - Ross Wallingford
- Viatris Viatris Research and Development, Morgantown, WV, United States
| | - Joseph Duncan
- Viatris Viatris Research and Development, Morgantown, WV, United States
| | - Joshua Lewis
- Viatris Viatris Research and Development, Morgantown, WV, United States
| | - Jason Southall
- Viatris Viatris Research and Development, Morgantown, WV, United States
| | - Azeem Ansari
- Viatris Viatris Research and Development, Morgantown, WV, United States
| | - Hong Li
- Viatris Viatris Research and Development, Morgantown, WV, United States
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22
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Guarnaccia JB, Cabot A, Garten LL, Napoli S, Hasbani MJ. Teriflunomide levels in women whose male sexual partner is on teriflunomide for relapsing multiple sclerosis. Mult Scler Relat Disord 2022; 57:103347. [PMID: 35158456 DOI: 10.1016/j.msard.2021.103347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Revised: 10/05/2021] [Accepted: 10/24/2021] [Indexed: 11/27/2022]
Abstract
BACKGROUND For small molecules such as teriflunomide, used to treat relapsing multiple sclerosis (MS), that are potentially embryotoxic, there is a theoretical risk of transmission of the medication from males on the drug to female sexual partners. However, that risk has been undefined up to now. METHODS Teriflunomide concentrations were assayed concomitantly in ten sexually active couples, not using barrier methods of contraception, in whom the male partner with MS was on treatment with teriflunomide 14 mg daily for at least two months. These results were compared by male and female age, teriflunomide concentrations and reported average number of incidences of sexual intercourse per month. The threshold level of detection of teriflunomide was 0.020 µg/ml in females. RESULTS The average age of the cohort was 46.70 for males and 47.10 for females. Four of ten females had detectible teriflunomide concentrations (mean 0.046 µg/ml (range 0.22-0.077, standard deviation 0.025). Male age and both female teriflunomide positive threshold and female teriflunomide concentration were inversely correlated (r = 0.67, R2=0.45, p = 0.034) for the former and (r = 0.62, R2=0.39, p = 0.05, ns) for the latter. No significant correlations were observed for female age, male teriflunomide concentrations, or reported mean monthly episodes of sexual intercourse. CONCLUSION This limited study suggests that the small risk that low levels of teriflunomide can be transmitted from male to female partners via sexual intercourse is related to male age. This supports the recommendations found in the United States Product Insert (USPI) stating that men taking teriflunomide who do not wish to father a child, and their female partners, should use reliable contraception. Men wishing to father a child should discontinue use of teriflunomide and undergo an accelerated elimination procedure to reduce the plasma concentrations of the medication to less than 0.02 mg/L (0.02 µg/ml1.
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Affiliation(s)
| | - Ann Cabot
- MS Specialty Care Program, Concord Hospital, NH, United States
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23
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Shabalina D, Zulkaidarova A, Khramchenko M, Subocheva S, Abros’kina M, Prokopenko S. Experience of remote rehabilitation for patients with multiple sclerosis. Zh Nevrol Psikhiatr Im S S Korsakova 2022; 122:69-73. [DOI: 10.17116/jnevro202212211169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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24
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Zahid M, Busmail A, Penumetcha SS, Ahluwalia S, Irfan R, Khan SA, Rohit Reddy S, Vasquez Lopez ME, Mohammed L. Tumor Necrosis Factor Alpha Blockade and Multiple Sclerosis: Exploring New Avenues. Cureus 2021; 13:e18847. [PMID: 34804701 PMCID: PMC8597935 DOI: 10.7759/cureus.18847] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Accepted: 10/17/2021] [Indexed: 11/07/2022] Open
Abstract
Multiple sclerosis (MS) is the most common disabling disease of the central nervous system (CNS) with a progressive neurodegenerative pattern. It is characterized by demyelination of white matter in CNS and apoptosis of oligodendrocytes. Tumor necrosis factor (TNF) alpha is a major cytokine in the pathogenesis of MS. However, the failure of TNF alpha inhibitors in preclinical and clinical trials disapproved of their use in MS patients. Nevertheless, failures and misses sometimes open avenues for new hits. In the later years, it was discovered that TNF signaling is mediated via two different receptors, TNFR1 and TNFR2, both of which have paradoxical effects. TNFR1 mediates demyelination and apoptosis, while TNFR2 promotes remyelination and neuroprotection. This explained the cause of the failure of non-selective TNF alpha-blockers in MS. It also enlightened researchers that repurposing the previously formulated non-selective TNF alpha-blockers using a receptor-selective approach could lead to discovering novel biologic agents with a broader spectrum of indications and better safety profiles. This review focuses on a novel premier TNFR1 blocker, atrosab, which has been tested in animal models of MS, experimental autoimmune encephalomyelitis (EAE), where it demonstrated a reduction in symptom severity. The early promise shown by atrosab in preclinical studies has given us hope to find another revolutionary drug for MS in the future. Clinical trials, which will finally decide whether this drug can be used as a better therapeutic agent for MS or not, are still going on, but currently, there is no approved evidence regarding efficacy of these agents in treating MS.
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Affiliation(s)
- Maryam Zahid
- Research & Development, California Institute of Behavioral Neurosciences & Psychology, Fairfield, USA
| | - Alberto Busmail
- Internal Medicine, California Institute of Behavioral Neurosciences & Psychology, Fairfield, USA
| | - Sai Sri Penumetcha
- Internal Medicine, Chalmeda Anand Rao Institute of Medical Sciences, Karimnagar, IND.,Internal Medicine, California Institute of Behavioral Neurosciences & Psychology, Fairfield, USA
| | - Saher Ahluwalia
- Internal Medicine, California Institute of Behavioral Neurosciences & Psychology, Fairfield, USA
| | - Rejja Irfan
- Internal Medicine, Shalamar Medical & Dental College, Lahore, PAK.,Internal Medicine, Brooklyn Medical Services, New York, USA.,Research and Development, California Institute of Behavioral Neurosciences & Psychology, Fairfield, USA
| | - Sawleha Arshi Khan
- Research, California Institute of Behavioral Neurosciences & Psychology, Fairfield, USA
| | - Sai Rohit Reddy
- Gastroenterology and Hepatology, Mayo Clinic, Rochester, USA.,School of Medicine, Armed Forces Medical College, Pune, IND.,Internal Medicine, California Institute of Behavioral Neurosciences & Psychology, Fairfield, USA
| | - Maria Elisa Vasquez Lopez
- Research and Development, California Institute of Behavioral Neurosciences & Psychology, Fairfield, USA
| | - Lubna Mohammed
- Internal Medicine, California Institute of Behavioral Neurosciences & Psychology, Fairfield, USA
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25
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Etemadifar M, Sami R, Salari M, Sedaghat N, Sigari AA, Aghababaei A, Najafi M, Tehrani DS. Outcome of COVID-19 infection in multiple sclerosis patients receiving disease-modifying therapies. JOURNAL OF RESEARCH IN MEDICAL SCIENCES 2021; 26:85. [PMID: 34760002 PMCID: PMC8548892 DOI: 10.4103/jrms.jrms_1047_20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Subscribe] [Scholar Register] [Received: 10/03/2020] [Revised: 12/15/2020] [Accepted: 06/07/2021] [Indexed: 11/04/2022]
Abstract
Background With the spread of COVID-19, treatment of diseases such as multiple sclerosis (MS) should be resumed with caution due to the disease-modifying therapies (DMTs) used in this subset of patients and the immunoregulatory effects of these drugs. We aim to assess the outcome of COVID-19 infection in MS patients receiving DMTs. Materials and Methods This is a cross-sectional study involving 45 COVID-19-infected patients previously diagnosed with MS. The data regarding their MS status and the type of DMT taken by the patients were extracted from the Isfahan MS Institute registry and were summarized. Diagnosis of MS was based on the 2017 McDonald Criteria, and the diagnosis of COVID-19 was based on computed tomography scan and polymerase chain reaction of nasopharyngeal swabs. Results Out of the 45 MS patients infected with COVID-19, 5 had unfavorable outcomes. Two patients deceased and the other three had persistent respiratory complications on the 4-week follow-up visit. Hypertension, diabetes, seizures, and rheumatoid arthritis were among the comorbidities that the patients reported. Both patients who died received rituximab as part of their MS treatment. All other patients recovered completely. Conclusion Each different drug category may possess a distinct risk for infection, therefore until robust evidence are available, the safest drug should be utilized or the therapy should be postponed, if possible, to minimize patient risk. Disease-modifying therapy use in MS patients should be cautiously applied as their effect on COVID-19 infection prognosis is not yet studied.
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Affiliation(s)
- Masoud Etemadifar
- Department of Neurosurgery, Alzahra University Hospital, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Ramin Sami
- Department of Internal Medicine, Khorshid University Hospital, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Mehri Salari
- Department of Neurology, Shahid Beheshti University, Tehran, Iran
| | - Nahad Sedaghat
- Alzahra Research Institute, Alzahra University Hospital, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Amirhossein Akhavan Sigari
- Alzahra Research Institute, Alzahra University Hospital, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Ali Aghababaei
- School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Mohammadreza Najafi
- Department of Neurology, Alzahra University Hospital, Isfahan University of Medical Sciences, Isfahan, Iran
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26
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Duffy LV, Sarill K, Forbes P, Camposano S, McCabe M. Shared Decision Making and Disease Modifying Therapy in Families of Children and Adolescents with Pediatric Onset Multiple Sclerosis. J Pediatr Nurs 2021; 61:404-409. [PMID: 34655844 DOI: 10.1016/j.pedn.2021.09.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 09/02/2021] [Accepted: 09/07/2021] [Indexed: 10/20/2022]
Abstract
BACKGROUND Deciding on a disease modifying therapy (DMT) for the treatment of pediatric onset multiple sclerosis (POMS) often presents a challenge to families. Parents are often overwhelmed by DMT choices, but they desire to be an integral part of the decision making process for their child. There is no standard approach for how best to involve families in this process. The aim of this study was to describe the experience of decision making related to the use of disease modifying therapy in parents of children and adolescents with POMS. METHODS The research aim was addressed using a descriptive survey design. Participants were recruited from the Pediatric MS and Related Disorders Program at Boston Children's Hospital as well as from the Pediatric Multiple Sclerosis Alliance online Facebook group. RESULTS Overall, fewer than half of parents felt very satisfied with the DMT they chose for their child with POMS (44%). Parental satisfaction with the decision making process increased with a high level of control of the process (p < 0.0001), satisfaction with communication (p < 0.0001), and feeling supported by the healthcare provider (p < 0.0001). PRACTICE IMPLICATIONS Healthcare providers should recognize the importance of the role of the family in the decision making process and how this directly impacts health outcomes. An open discussion at the time of DMT education should involve identification of family values and preferences. The use of online decision support tools have a valuable role in determining family preferences. CONCLUSION There is an opportunity of healthcare providers to foster shared decision making practices to improve satisfaction among parents of children and adolescents with POMS. Healthcare providers should work closely with families to identify and incorporate their personal preferences for their role in the decision making process. Future research should include the testing of decision support tools for decision making in POMS.
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Affiliation(s)
- Lisa V Duffy
- School of Nursing, Bouvé College of Health Sciences, Northeastern University, Boston, MA, United States of America; Department of Neurology, Boston Children's Hospital, Boston, MA, United States of America.
| | - Kiera Sarill
- Albany Medical College, Albany, NY, United States of America
| | - Peter Forbes
- Boston Children's Hospital, Boston, MA, United States of America
| | - Susana Camposano
- Department of Neurology, Boston Children's Hospital, Boston, MA, United States of America
| | - Margaret McCabe
- Children's Hospital of Philadelphia, PA, United States of America
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27
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Samjoo IA, Worthington E, Haltner A, Spin P, Drudge C, Cameron C, Brennan R, Dahlke F, Adlard N. Indirect comparisons of siponimod with fingolimod and ofatumumab in multiple sclerosis: assessing the feasibility of propensity score matching analyses. Curr Med Res Opin 2021; 37:1933-1944. [PMID: 34384311 DOI: 10.1080/03007995.2021.1968362] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
OBJECTIVE Head-to-head trials comparing siponimod with fingolimod or ofatumumab in patients with multiple sclerosis (MS) are lacking. Instead, the comparative efficacy of siponimod can be derived from indirect treatment comparisons (ITCs). We assessed the suitability of ITCs leveraging individual patient data from relevant phase III trials across different MS phenotypes. METHODS One siponimod trial in patients with secondary progressive MS (SPMS), four fingolimod trials (three in relapsing-remitting MS [RRMS], and one in primary progressive MS [PPMS]), and two ofatumumab trials in relapsing MS (RMS) were considered. The suitability of ITCs was evaluated based on trial design, patient eligibility criteria, baseline patient characteristics, placebo response, and outcome definitions for each trial. Analyses deemed feasible were conducted using one-to-one propensity score matching (PSM). RESULTS An ITC between siponimod in SPMS and either fingolimod in RRMS or ofatumumab in RMS was not feasible because of insufficient overlap in key patient characteristics (e.g. disability level and relapse history) and differences in placebo response. However, a comparison between siponimod in SPMS and fingolimod in PPMS was feasible because of sufficient overlap in eligibility criteria and baseline characteristics. One-to-one PSM demonstrated siponimod was favored relative to fingolimod for time to 6- and 3-month confirmed disability progression though not significantly different (hazard ratio 0.76 [95% confidence interval 0.48-1.20; p-value = .240] and hazard ratio 0.80 [95% confidence interval 0.52-1.22; p-value = .300], respectively). CONCLUSIONS For trials in MS, clinical phenotype is an important determinant of ITC feasibility. An ITC between siponimod in SPMS and either fingolimod in RRMS or ofatumumab in RMS was not feasible. The only feasible comparison was between siponimod in SPMS and fingolimod in PPMS.
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28
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Dworsky-Fried Z, Chadwick CI, Kerr BJ, Taylor AMW. Multiple Sclerosis and the Endogenous Opioid System. Front Neurosci 2021; 15:741503. [PMID: 34602975 PMCID: PMC8484329 DOI: 10.3389/fnins.2021.741503] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Accepted: 08/26/2021] [Indexed: 01/10/2023] Open
Abstract
Multiple sclerosis (MS) is an autoimmune disease characterized by chronic inflammation, neuronal degeneration and demyelinating lesions within the central nervous system. The mechanisms that underlie the pathogenesis and progression of MS are not fully known and current therapies have limited efficacy. Preclinical investigations using the murine experimental autoimmune encephalomyelitis (EAE) model of MS, as well as clinical observations in patients with MS, provide converging lines of evidence implicating the endogenous opioid system in the pathogenesis of this disease. In recent years, it has become increasingly clear that endogenous opioid peptides, binding μ- (MOR), κ- (KOR) and δ-opioid receptors (DOR), function as immunomodulatory molecules within both the immune and nervous systems. The endogenous opioid system is also well known to play a role in the development of chronic pain and negative affect, both of which are common comorbidities in MS. As such, dysregulation of the opioid system may be a mechanism that contributes to the pathogenesis of MS and associated symptoms. Here, we review the evidence for a connection between the endogenous opioid system and MS. We further explore the mechanisms by which opioidergic signaling might contribute to the pathophysiology and symptomatology of MS.
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Affiliation(s)
- Zoë Dworsky-Fried
- Department of Pharmacology, University of Alberta, Edmonton, AB, Canada
| | - Caylin I. Chadwick
- Neuroscience and Mental Health Institute, University of Alberta, Edmonton, AB, Canada
| | - Bradley J. Kerr
- Department of Pharmacology, University of Alberta, Edmonton, AB, Canada
- Neuroscience and Mental Health Institute, University of Alberta, Edmonton, AB, Canada
- Department of Anesthesiology and Pain Medicine, University of Alberta, Edmonton, AB, Canada
| | - Anna M. W. Taylor
- Department of Pharmacology, University of Alberta, Edmonton, AB, Canada
- Neuroscience and Mental Health Institute, University of Alberta, Edmonton, AB, Canada
- Department of Anesthesiology and Pain Medicine, University of Alberta, Edmonton, AB, Canada
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29
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Rice DR, Kaplan TB, Hotan GC, Vogel AC, Matiello M, Gillani RL, Hutto SK, Ham AS, Klawiter EC, George IC, Galetta K, Mateen FJ. Electronic pill bottles to monitor and promote medication adherence for people with multiple sclerosis: A randomized, virtual clinical trial. J Neurol Sci 2021; 428:117612. [PMID: 34392138 DOI: 10.1016/j.jns.2021.117612] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Revised: 07/25/2021] [Accepted: 08/04/2021] [Indexed: 11/19/2022]
Abstract
OBJECTIVE We perform a randomized trial to test the impact of electronic pill bottles with audiovisual reminders on oral disease modifying therapy (DMT) adherence in people with MS (PwMS). METHODS Adults with multiple sclerosis (MS) taking an oral DMT were randomized 1:1 for 90 days to remote smartphone app- and pill bottle-based (a) adherence monitoring, or (b) adherence monitoring with audiovisual medication reminders. Optimal adherence was defined as the proportion of doses taken ±3 h of the scheduled time. Numbers of missed pills and pills taken early, on time, late, and extra were recorded. A multivariable regression model tested possible associations between optimal adherence and age, MS duration, cognitive functioning, and number of daily prescription pills. RESULTS 85 participants (66 female; mean age 44.9 years) took dimethyl/diroximel fumarate (n = 49), fingolimod (n = 26), or teriflunomide (n = 10). Optimal adherence was on average higher in the monitoring with reminders arm (71.4%) than the monitoring only arm (61.6%; p = 0.033). In a multivariable model, optimal adherence was less likely in younger participants (p < 0.001) and those taking more daily prescription pills (p < 0.001). In the monitoring only arm, 4.0% of doses were taken early, 61.6% on time, 5.6% late, 4.4% in excess, and 24.4% were missed. In the reminders arm, these proportions were 3.4%, 71.4%, 3.7%, 8.7%, and 12.8%, respectively. CONCLUSION We map real-world oral DMT adherence patterns using mHealth technology. PwMS who received medication reminders had higher optimal adherence. Nonadherence was more nuanced than simply missing pills. Developing strategies to improve adherence remains important in longitudinal MS care.
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Affiliation(s)
- Dylan R Rice
- Department of Neurology, Massachusetts General Hospital, Boston, MA, USA
| | - Tamara B Kaplan
- Department of Neurology, Brigham and Women's Hospital, Boston, MA, USA; Harvard Medical School, Boston, MA, USA
| | - Gladia C Hotan
- Institute of High Performance Computing, Agency for Science, Technology and Research, Singapore
| | - Andre C Vogel
- Department of Neurology, Massachusetts General Hospital, Boston, MA, USA
| | - Marcelo Matiello
- Department of Neurology, Massachusetts General Hospital, Boston, MA, USA; Harvard Medical School, Boston, MA, USA
| | - Rebecca L Gillani
- Department of Neurology, Massachusetts General Hospital, Boston, MA, USA; Harvard Medical School, Boston, MA, USA
| | - Spencer K Hutto
- Department of Neurology, Massachusetts General Hospital, Boston, MA, USA; Harvard Medical School, Boston, MA, USA
| | | | - Eric C Klawiter
- Department of Neurology, Massachusetts General Hospital, Boston, MA, USA; Harvard Medical School, Boston, MA, USA
| | - Ilena C George
- Department of Neurology, Massachusetts General Hospital, Boston, MA, USA; Harvard Medical School, Boston, MA, USA
| | - Kristin Galetta
- Department of Neurology, Brigham and Women's Hospital, Boston, MA, USA; Harvard Medical School, Boston, MA, USA
| | - Farrah J Mateen
- Department of Neurology, Massachusetts General Hospital, Boston, MA, USA; Harvard Medical School, Boston, MA, USA.
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Dantas LA, Pereira MS, Gauza ADM, Schulz MEB, Silva GFD, Martin MEM, Medeiros Junior WLGD, Gonçalves MVM. Latent tuberculosis infection reactivation in patients with multiple sclerosis in use of disease-modifying therapies: A systematic review. Mult Scler Relat Disord 2021; 55:103184. [PMID: 34384990 DOI: 10.1016/j.msard.2021.103184] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Revised: 07/22/2021] [Accepted: 07/31/2021] [Indexed: 01/31/2023]
Abstract
BACKGROUND Tuberculosis (TB) is an infectious-contagious disease caused by Mycobacterium tuberculosis. This disease can act acutely or in latent form as granuloma. Multiple Sclerosis (MS) is a chronic inflammatory disease more common in the Central Nervous System (CNS). Its treatment involves disease-modifying therapies (DMTs), which can predispose MS patients to a higher risk of infections by interfering in the immune system. Patients undergoing MS treatment could be more susceptible to Latent Tuberculosis Infection (LTBI) reactivation. This study aims to elucidate the possible relationship between MS and LTBI through a systematic review of the literature. METHODS MEDLINE/PubMed, Cochrane, ScienceDirect, LILACS, and SciELO were systematically reviewed from 2010 to 2020 and Google Scholar from 2015 to 2020 to detect eligible papers. The following keywords were used for this search: "LTBI and MS"; "Multiple Sclerosis and Latent Tuberculosis"; "Multiple Sclerosis and Latent Tuberculosis infection reactivation"; "Multiple Sclerosis and Pulmonary Tuberculosis"; "Multiple Sclerosis and Active Tuberculosis"; "Multiple Sclerosis and Tuberculosis Reactivation" for MEDLINE/Pubmed and ScienceDirect; and "Multiple Sclerosis and Latent Tuberculosis Infection" for Google Scholar, Cochrane, SCIELO, and LILACS. The filter for "review articles," "research articles," and "case reports" was applied in ScienceDirect. RESULTS Fourteen (14) studies describing the relationship between MS and LTBI were included in qualitative synthesis: case-report (2), prevalence (2), non-systematic review (4), expert consensus (2), and case-control (4) studies. CONCLUSION The reactivation of LTBI is well understood, but hardly any literature addressed the association between the contagious disease and MS' treatment. The selected articles are observational studies that offer limited data and differ in many aspects detailed over this study. These divergences make it challenging to compare articles' results. Nevertheless, most reports recommend screening for LTBI before starting MS treatment, mainly in high incidence countries.
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Affiliation(s)
- Luiza Andraus Dantas
- Medical student - Department of Medicine, University of the Region of Joinville (UNIVILLE), Brazil.
| | | | - Amanda de Miranda Gauza
- Medical student - Department of Medicine, University of the Region of Joinville (UNIVILLE), Brazil
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Leblanc S, Roux J, Tillaut H, Le Page E, Leray E. Disease-modifying therapy usage in patients with multiple sclerosis in France: A 6-year population-based study. Rev Neurol (Paris) 2021; 177:1250-1261. [PMID: 34253346 DOI: 10.1016/j.neurol.2021.04.006] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Revised: 04/21/2021] [Accepted: 04/23/2021] [Indexed: 11/19/2022]
Abstract
BACKGROUND Most data regarding the use of disease-modifying therapies (DMTs) in multiple sclerosis (MS) comes from clinical series or regional databases that have a risk of recruitment bias. French health administrative data offers the significant advantage of being extensive in regards to both MS population coverage and DMT prescriptions. OBJECTIVES To describe patterns of DMTs usage at the level of the entire French population of MS patients from 2010 to 2015. METHODS MS patients were identified during a 6-year study period via the French national health data system (covering 97% of the general population) and characteristics of patients who received at least one treatment were compared to those that never received treatment over the indicated period. A state sequence analysis was performed to study in a longitudinal way MS patients who started DMTs in 2010 and then to classify them into groups of similar therapeutic patterns. DMTs were categorized into first-line, second-line and off-label use, and included untreated periods for at least six months. Groups that were obtained were described and compared using a multinomial logistic regression. RESULTS A total of 112,415 patients with MS were identified, of whom 54.0% received at least one DMT over the 6 years. The probability of being treated significantly decreased with age. Comorbidities and physical limitations appeared to be more frequent in not treated patients than in treated patients. Significant differences were also found between the two groups regarding the use of healthcare services (hospitalizations and visits to general practitioner, neurologist and nurse). Based on the 6-year therapeutic sequences, a four-cluster typology was obtained on the 4,474 patients who started a DMT in 2010. The first group which consisted of more than half of the patients (57.0%) mainly used first-line DMTs. The second group (13.1%) represented patients with second-line DMTs whereas the third group (7.3%) was comprised of off-label users and the last group (22.6%) was composed of MS patients who received no or minimal treatments. Classification into one of these groups was associated with patient's age, long-term disease status, pregnancy occurrence, estimated level of disability, levels of care (visits to a neurologist, nurse and/or physiotherapist and hospital/rehabilitation stays) and occurrence of death. CONCLUSIONS The exhaustive population-based dataset from the French national health data system gave the opportunity to provide a detailed description regarding the use of DMTs for MS at national level. The innovative method of state sequence analysis allowed obtaining four homogeneous groups of patients among thousands of longitudinal therapeutic sequences. The predominant place of first-line treatments was confirmed even if the type of first-line treatments has probably changed since 2015.
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Affiliation(s)
- S Leblanc
- Univ Rennes, EHESP, REPERES (Pharmacoepidemiology and health services research) - EA 7449, 15, avenue du Professeur Léon Bernard, CS 74312, 35000 Rennes, France.
| | - J Roux
- Univ Rennes, EHESP, REPERES (Pharmacoepidemiology and health services research) - EA 7449, 15, avenue du Professeur Léon Bernard, CS 74312, 35000 Rennes, France
| | - H Tillaut
- Univ Rennes, EHESP, REPERES (Pharmacoepidemiology and health services research) - EA 7449, 15, avenue du Professeur Léon Bernard, CS 74312, 35000 Rennes, France
| | - E Le Page
- Inserm CIC-P 1414, Rennes University Hospital, Rennes University, 2, rue Henri le Guilloux, 35000 Rennes, France; Neurology department, Rennes University Hospital, Rennes University, 2, rue Henri le Guilloux, 35000 Rennes, France
| | - E Leray
- Univ Rennes, EHESP, REPERES (Pharmacoepidemiology and health services research) - EA 7449, 15, avenue du Professeur Léon Bernard, CS 74312, 35000 Rennes, France; Inserm CIC-P 1414, Rennes University Hospital, Rennes University, 2, rue Henri le Guilloux, 35000 Rennes, France
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Safaeinejad F, Asadi S, Ghafghazi S, Niknejad H. The Synergistic Anti-Apoptosis Effects of Amniotic Epithelial Stem Cell Conditioned Medium and Ponesimod on the Oligodendrocyte Cells. Front Pharmacol 2021; 12:691099. [PMID: 34234678 PMCID: PMC8255610 DOI: 10.3389/fphar.2021.691099] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Accepted: 06/09/2021] [Indexed: 12/14/2022] Open
Abstract
Multiple sclerosis is a chronic inflammatory and neurodegenerative disease of the central nervous system. The current treatment of Multiple sclerosis is based on anti-inflammatory disease-modifying treatments, which can not regenerate myelin and eventually neurons. So, we need new approaches for axonal protection and remyelination. Amniotic epithelial stem cells amniotic epithelial cells, as a neuroprotective and neurogenic agent, are a proper source in tissue engineering and regenerative medicine. Due to differentiation capability and secretion of growth factors, AECs can be a candidate for the treatment of MS. Moreover, sphingosine-1-phosphate (S1P) receptor modulators were recently approved by FDA for MS. Ponesimod is an S1P receptor-1 modulator that acts selectively as an anti-inflammatory agent and provides a suitable microenvironment for the function of the other neuroprotective agents. In this study, due to the characteristics of AECs, they are considered a treatment option in MS. The conditioned medium of AECs concurrently with ponesimod was used to evaluate the viability of the oligodendrocyte cell line after induction of cell death by cuprizone. Cell viability after treatment by conditioned medium and ponesimod was increased compared to untreated groups. Also, the results showed that combination therapy with CM and ponesimod had a synergistic anti-apoptotic effect on oligodendrocyte cells. The combination treatment with CM and ponesimod reduced the expression of caspase-3, caspase-8, Bax, and Annexin V proteins and increased the relative BCL-2/Bax ratio, indicating inhibition of apoptosis as a possible mechanism of action. Based on these promising results, combination therapy with amniotic stem cells and ponesimode could be a proper alternative for multiple sclerosis treatment.
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Affiliation(s)
- Fahimeh Safaeinejad
- Department of Pharmacology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Sareh Asadi
- Neurobiology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Shiva Ghafghazi
- Department of Pharmacology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Hassan Niknejad
- Department of Pharmacology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Pellizoni FP, Leite AZ, Rodrigues NDC, Ubaiz MJ, Gonzaga MI, Takaoka NNC, Mariano VS, Omori WP, Pinheiro DG, Matheucci Junior E, Gomes E, Oliveira DGLV. Detection of Dysbiosis and Increased Intestinal Permeability in Brazilian Patients with Relapsing-Remitting Multiple Sclerosis. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph18094621. [PMID: 33925359 PMCID: PMC8123689 DOI: 10.3390/ijerph18094621] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Revised: 04/12/2021] [Accepted: 04/14/2021] [Indexed: 02/07/2023]
Abstract
Dysbiosis, associated with barrier disruption and altered gut–brain communications, has been associated with multiple sclerosis (MS). In this study, we evaluated the gut microbiota in relapsing–remitting patients (RRMS) receiving disease-modifying therapies (DMTs) and correlated these data with diet, cytokines levels, and zonulin concentrations. Stool samples were used for 16S sequencing and real-time PCR. Serum was used for cytokine determination by flow cytometry, and zonulin quantification by ELISA. Pearson’s chi-square, Mann–Whitney, and Spearman’s correlation were used for statistical analyses. We detected differences in dietary habits, as well as in the gut microbiota in RRMS patients, with predominance of Akkermansia muciniphila and Bacteroides vulgatus and decreased Bifidobacterium. Interleukin-6 concentrations were decreased in treated patients, and we detected an increased intestinal permeability in RRMS patients when compared with controls. We conclude that diet plays an important role in the composition of the gut microbiota, and intestinal dysbiosis, detected in RRMS patients could be involved in increased intestinal permeability and affect the clinical response to DTMs. The future goal is to predict therapeutic responses based on individual microbiome analyses (personalized medicine) and propose dietary interventions and the use of probiotics or other microbiota modulators as adjuvant therapy to enhance the therapeutic efficacy of DMTs.
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Affiliation(s)
- Felipe Papa Pellizoni
- Microbiome Study Group, School of Health Sciences Dr. Paulo Prata, Barretos 14785-002, Brazil; (F.P.P.); (M.J.U.); (M.I.G.); (N.N.C.T.)
| | - Aline Zazeri Leite
- Microbiology Program, Institute of Biosciences, Humanities and Exact Sciences, São Paulo State University, Sao Jose do Rio Preto 15054-000, Brazil; (A.Z.L.); (E.G.)
| | | | - Marcelo Jordão Ubaiz
- Microbiome Study Group, School of Health Sciences Dr. Paulo Prata, Barretos 14785-002, Brazil; (F.P.P.); (M.J.U.); (M.I.G.); (N.N.C.T.)
| | - Marina Ignácio Gonzaga
- Microbiome Study Group, School of Health Sciences Dr. Paulo Prata, Barretos 14785-002, Brazil; (F.P.P.); (M.J.U.); (M.I.G.); (N.N.C.T.)
| | - Nauyta Naomi Campos Takaoka
- Microbiome Study Group, School of Health Sciences Dr. Paulo Prata, Barretos 14785-002, Brazil; (F.P.P.); (M.J.U.); (M.I.G.); (N.N.C.T.)
| | | | - Wellington Pine Omori
- Department of Technology, School of Agricultural and Veterinarian Sciences, São Paulo State University (UNESP), Jaboticabal 14884-900, Brazil; (W.P.O.); (D.G.P.)
| | - Daniel Guariz Pinheiro
- Department of Technology, School of Agricultural and Veterinarian Sciences, São Paulo State University (UNESP), Jaboticabal 14884-900, Brazil; (W.P.O.); (D.G.P.)
| | | | - Eleni Gomes
- Microbiology Program, Institute of Biosciences, Humanities and Exact Sciences, São Paulo State University, Sao Jose do Rio Preto 15054-000, Brazil; (A.Z.L.); (E.G.)
| | - de Gislane Lelis Vilela Oliveira
- Microbiology Program, Institute of Biosciences, Humanities and Exact Sciences, São Paulo State University, Sao Jose do Rio Preto 15054-000, Brazil; (A.Z.L.); (E.G.)
- Food Engineering and Technology Department, São Paulo State University (UNESP), Sao Jose do Rio Preto 15054-000, Brazil
- Correspondence: ; Tel.: +55-17-3212-1058
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Liu Z, Liao Q, Wen H, Zhang Y. Disease modifying therapies in relapsing-remitting multiple sclerosis: A systematic review and network meta-analysis. Autoimmun Rev 2021; 20:102826. [PMID: 33878488 DOI: 10.1016/j.autrev.2021.102826] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Accepted: 02/17/2021] [Indexed: 12/21/2022]
Abstract
OBJECTIVE To compare the efficacy and compliance of up-to-date disease modifying therapies (DMTs) in patients with remitting-relapsing MS (RRMS). METHODS We searched PubMed, EMBASE and Cochrane Library for eligible studies. Annualized relapse rate, discontinuation due to adverse events (AEs) were assessed as primary outcomes. Sensitivity analysis and inconsistency detection were performed to evaluated whether exclusion of high-risk studies affected the validity. Risk of bias was assessed using Cochrane's Risk-of-Bias Tool 2. Surface under the cumulative ranking curve (SUCRA) was used to estimate the rankings among different DMTs. RESULTS 21 studies were included for main report. Seven studies were evaluated as "high risk" and were therefore excluded. Exclusion of high-risk studies did not affect the validity of evidence. The risk of relapses for most DMTs except Betaseron 50 μg was significantly lower comparing to placebo. Incompliance in patients treated with DMTs was not significantly increased comparing to placebo. Dimethyl fumarate and ocrelizumab had superiority in improving MRI outcomes. Ocrelizumab and ofatumumab had the largest reduction of risk in disability progression at 3 months. Referring to SUCRA, ofatumumab, alemtuzumab and natalizumab showed the best efficacy and compliance. CONCLUSION The present study demonstrated the hierarchy of DMTs treating RRMS. Ofatumumab, alemtuzumab and natalizumab have superiority with respect to effectiveness and compliance. More studies are required to explore the long-term effect of DMTs. Our findings could provide helpful information and contribute to clinical treatment decision-making.
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Affiliation(s)
- Zhuoyi Liu
- Department of Anesthesiology, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Qiao Liao
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Haicheng Wen
- Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Yihao Zhang
- Department of General Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China.
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Abstract
The risk of JC polyomavirus encephalopathy varies among biologic classes and among agents within the same class. Of currently used biologics, the highest risk is seen with natalizumab followed by rituximab. Multiple other agents have also been implicated. Drug-specific causality is difficult to establish because many patients receive multiple immunomodulatory medications concomitantly or sequentially, and have other immunocompromising factors related to their underlying disease. As use of biologic therapies continues to expand, further research is needed into pathogenesis, treatment, and prevention of JC polyomavirus encephalopathy such that risk for its development is better understood and mitigated, if not eliminated altogether.
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Taylor B, Patel MP, Peters KB. When tumefactive demyelination is truly a tumor: case report of a radiographic misdiagnosis. CNS Oncol 2021; 10:CNS69. [PMID: 33448234 PMCID: PMC7962173 DOI: 10.2217/cns-2020-0028] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022] Open
Abstract
Oligodendrogliomas are slow-growing tumors that account for 15–20% of gliomas. This case report describes the case of an adult male patient diagnosed initially with tumefactive demyelination and multiple sclerosis, which was subsequently found to be a well-differentiated low-grade oligodendroglioma. This case emphasizes the importance of timely diagnosis in oligodendrogliomas and other brain tumors for the prompt initiation of appropriate therapy, to minimize the likelihood of disease progression, ensure symptom management and escalation of unnecessary treatments for multiple sclerosis.
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Affiliation(s)
- Breanna Taylor
- Department of Pharmacy, University of Miami Health System, Sylvester Comprehensive Cancer Center, Miami, FL 33136, USA
| | - Mallika P Patel
- Department of Pharmacy, Duke University Hospital, The Preston Robert Tisch Brain Tumor Center, Durham, NC 27710, USA
| | - Katherine B Peters
- Department of Neurosurgery, Duke University School of Medicine, The Preston Robert Tisch Brain Tumor Center, Durham, NC 27710, USA
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Mimura LAN, Fraga-Silva TFDC, de Oliveira LRC, Ishikawa LLW, Borim PA, Machado CDM, Júnior JDADCEH, da Fonseca DM, Sartori A. Preclinical Therapy with Vitamin D3 in Experimental Encephalomyelitis: Efficacy and Comparison with Paricalcitol. Int J Mol Sci 2021; 22:ijms22041914. [PMID: 33671896 PMCID: PMC7918993 DOI: 10.3390/ijms22041914] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Revised: 02/04/2021] [Accepted: 02/07/2021] [Indexed: 02/06/2023] Open
Abstract
Multiple sclerosis (MS) is a chronic demyelinating disease of the central nervous system (CNS). MS and its animal model called experimental autoimmune encephalomyelitis (EAE) immunopathogenesis involve a plethora of immune cells whose activation releases a variety of proinflammatory mediators and free radicals. Vitamin D3 (VitD) is endowed with immunomodulatory and antioxidant properties that we demonstrated to control EAE development. However, this protective effect triggered hypercalcemia. As such, we compared the therapeutic potential of VitD and paricalcitol (Pari), which is a non-hypercalcemic vitamin D analog, to control EAE. From the seventh day on after EAE induction, mice were injected with VitD or Pari every other day. VitD, but not Pari, displayed downmodulatory ability being able to reduce the recruitment of inflammatory cells, the mRNA expression of inflammatory parameters, and demyelination at the CNS. Lower production of proinflammatory cytokines by lymph node-derived cells and IL-17 by gut explants, and reduced intestinal inflammation were detected in the EAE/VitD group compared to the EAE untreated or Pari groups. Dendritic cells (DCs) differentiated in the presence of VitD developed a more tolerogenic phenotype than in the presence of Pari. These findings suggest that VitD, but not Pari, has the potential to be used as a preventive therapy to control MS severity.
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Affiliation(s)
- Luiza Ayumi Nishiyama Mimura
- Department of Chemical and Biological Sciences, Institute of Biosciences, São Paulo State University (UNESP), Botucatu 18618-689, Brazil; (T.F.d.C.F.-S.); (L.R.C.d.O.); (L.L.W.I.); (A.S.)
- Correspondence:
| | - Thais Fernanda de Campos Fraga-Silva
- Department of Chemical and Biological Sciences, Institute of Biosciences, São Paulo State University (UNESP), Botucatu 18618-689, Brazil; (T.F.d.C.F.-S.); (L.R.C.d.O.); (L.L.W.I.); (A.S.)
| | - Larissa Ragozzo Cardoso de Oliveira
- Department of Chemical and Biological Sciences, Institute of Biosciences, São Paulo State University (UNESP), Botucatu 18618-689, Brazil; (T.F.d.C.F.-S.); (L.R.C.d.O.); (L.L.W.I.); (A.S.)
| | - Larissa Lumi Watanabe Ishikawa
- Department of Chemical and Biological Sciences, Institute of Biosciences, São Paulo State University (UNESP), Botucatu 18618-689, Brazil; (T.F.d.C.F.-S.); (L.R.C.d.O.); (L.L.W.I.); (A.S.)
| | - Patrícia Aparecida Borim
- Botucatu Medical School, Department of Tropical Diseases and Image Diagnosis, São Paulo State University (UNESP), Botucatu 18618-687, Brazil;
| | - Carla de Moraes Machado
- Department of Structural and Functional Biology, Institute of Biosciences, São Paulo State University (UNESP), Botucatu 18618-689, Brazil; (C.d.M.M.); (J.d.A.d.C.eH.J.)
| | - José de Anchieta de Castro e Horta Júnior
- Department of Structural and Functional Biology, Institute of Biosciences, São Paulo State University (UNESP), Botucatu 18618-689, Brazil; (C.d.M.M.); (J.d.A.d.C.eH.J.)
| | - Denise Morais da Fonseca
- Department of Immunology, Institute of Biomedical Sciences, University of Sao Paulo (USP), São Paulo 05508-000, Brazil;
| | - Alexandrina Sartori
- Department of Chemical and Biological Sciences, Institute of Biosciences, São Paulo State University (UNESP), Botucatu 18618-689, Brazil; (T.F.d.C.F.-S.); (L.R.C.d.O.); (L.L.W.I.); (A.S.)
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Liu R, Li Y, Zhou H, Wang H, Liu D, Wang H, Wang Z. OIP5-AS1 facilitates Th17 differentiation and EAE severity by targeting miR-140-5p to regulate RhoA/ROCK2 signaling pathway. Life Sci 2021:119108. [PMID: 33515560 DOI: 10.1016/j.lfs.2021.119108] [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: 04/08/2020] [Revised: 01/04/2021] [Accepted: 01/21/2021] [Indexed: 12/18/2022]
Abstract
AIMS Multiple sclerosis (MS) is one of the commonest neurologic disorders globally. LncRNA OIP5-AS1 has been found to be implicated in the etiology of MS. This study was to explore the roles and molecular mechanisms of OIP5-AS1 in the development of MS. MATERIALS AND METHODS RT-qPCR assay was used to measure expressions of OIP5-AS1, miR-140-5p, IL-17A mRNA and RhoA mRNA. CD4+IL-17+ cell proportion was determined by flow cytometry. IL-17A secretion was examined by ELISA assay. Cell inflammatory infiltration and demyelination were assessed by histological analyses. The interaction between miR-140-5p and OIP5-AS1 or RhoA 3'UTR was validated by bioinformatical analysis and luciferase reporter assay. Western blot assay was performed to detect protein expressions of ROCK2 and RhoA. An experimental autoimmune encephalomyelitis (EAE) models was established to explore the role of OIP5-AS1 in MS in vivo. KEY FINDINGS OIP5-AS1 expression was enhanced in MS patients. Also, elevated OIP5-AS1 level was observed during T-helper 17 (Th17) differentiation. Moreover, OIP5-AS1 promoted Th17 differentiation in vitro and contributed to the development of EAE in vivo. Mechanical explorations revealed that OIP5-AS1 targeted miR-140-5p to regulate Th17 differentiation. Moreover, RhoA was a target of miR-140-5p and miR-140-5p inhibited the activation of RhoA/ROCK2 signaling. Also, RhoA upregulation abrogated the inhibitory effects of miR-140-5p on Th17 differentiation. SIGNIFICANCE OIP5-AS1 contributed to EAE development by targeting miR-140-5p/RhoA and activating RhoA/ROCK2 signaling pathway, shedding light on the roles and molecular mechanisms of OIP5-AS1 in the development of MS and providing some candidate targets for the diagnose and treatment of MS.
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Affiliation(s)
- Ruihua Liu
- Department of Neurology, Luoyang Central Hospital Affiliated to Zhengzhou University, Luoyang, China.
| | - Yan Li
- Department of Neurology, Luoyang Central Hospital Affiliated to Zhengzhou University, Luoyang, China
| | - Haitao Zhou
- Department of Neurology, Luoyang Central Hospital Affiliated to Zhengzhou University, Luoyang, China
| | - Hao Wang
- Department of Neurology, Luoyang Central Hospital Affiliated to Zhengzhou University, Luoyang, China
| | - Dequan Liu
- Department of Neurology, Luoyang Central Hospital Affiliated to Zhengzhou University, Luoyang, China
| | - Huilin Wang
- Department of Neurology, Luoyang Central Hospital Affiliated to Zhengzhou University, Luoyang, China
| | - Zhenghua Wang
- Department of Laboratory, Luoyang Central Hospital Affiliated to Zhengzhou University, Luoyang, China
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Cotchett KR, Dittel BN, Obeidat AZ. Comparison of the Efficacy and Safety of Anti-CD20 B Cells Depleting Drugs in Multiple Sclerosis. Mult Scler Relat Disord 2021; 49:102787. [PMID: 33516134 DOI: 10.1016/j.msard.2021.102787] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Revised: 01/12/2021] [Accepted: 01/19/2021] [Indexed: 12/24/2022]
Abstract
Rituximab, ocrelizumab, ofatumumab and ublituximab are disease modifying therapies (DMT) currently used in the treatment of multiple sclerosis (MS) or are in advanced stages of clinical trials. These monoclonal antibodies deplete B cells by targeting the cell surface protein CD20. This review highlights the similarities and major differences between the four agents. We summarize data from various clinical trials of each of these therapeutics and discuss their efficacy and safety. Additional considerations regarding the route of administration and cost are presented. Among the four therapeutics, only ocrelizumab is approved for primary progressive (PP) MS. Infusion/injection related reactions (IRRs) are the most common adverse events associated with all four therapeutics. In phase III trials of ocrelizumab and ofatumumab, the incidence of IRRs was lower with ofatumumab. Ofatumumab is unique among the four therapeutics due to its availability as a subcutaneous injection (SQ). Although SQ administration may be appealing for some patients it may raise concerns regarding medication compliance among physicians. Phase II trials studying ublituximab for the treatment of RMS yielded promising results. Phase III trials are currently comparing the efficacy of ublituximab to teriflunomide.
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Affiliation(s)
- Kelly R Cotchett
- Department of Microbiology and Immunology, Medical College of Wisconsin, Milwaukee, WI; Versiti Blood Research Institute, Milwaukee, WI
| | - Bonnie N Dittel
- Department of Microbiology and Immunology, Medical College of Wisconsin, Milwaukee, WI; Versiti Blood Research Institute, Milwaukee, WI
| | - Ahmed Z Obeidat
- Department of Neurology, Medical College of Wisconsin, Milwaukee, WI.
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Dietrich M, Hecker C, Nasiri M, Samsam S, Issberner A, Kohne Z, Hartung HP, Albrecht P. Neuroprotective Properties of Dimethyl Fumarate Measured by Optical Coherence Tomography in Non-inflammatory Animal Models. Front Neurol 2021; 11:601628. [PMID: 33519681 PMCID: PMC7838501 DOI: 10.3389/fneur.2020.601628] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Accepted: 12/15/2020] [Indexed: 12/26/2022] Open
Abstract
While great advances have been made in the immunomodulatory treatment of multiple sclerosis (MS), there is still an unmet need for drugs with neuroprotective potential. Dimethyl fumarate (DMF) has been suggested to exert both immunomodulatory and neuroprotective effects in MS. To investigate if DMF has neuroprotective effects independent of immunomodulation we evaluated its effects in the non-inflammatory animal models of light-induced photoreceptor loss and optic nerve crush. This might also reveal applications for DMF besides MS, such as age related macular degeneration. Retinal neurodegeneration was longitudinally assessed by in vivo retinal imaging using optical coherence tomography (OCT), and glutathione (GSH) measurements as well as histological investigations were performed to clarify the mode of action. For light-induced photoreceptor loss, one eye of C57BL/6J mice was irradiated with a LED cold light lamp while for optic nerve crush the optic nerve was clamped behind the eye bulb. The other eye served as control. GSH was measured in the optic nerve, choroid and retina and immunohistological staining of retinal microglia (Iba1) was performed. Mice were treated with 15 or 30 mg DMF/kg bodyweight or vehicle. While no protective effects were observed in optic nerve crush, in the light-induced retinal degeneration model DMF treatment significantly reduced retinal degeneration. In these mice, GSH levels in the retina and surrounding choroid were increased and histological investigations revealed less microglial activation in the outer retinal layers, suggesting both antioxidant and anti-inflammatory effects.
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Affiliation(s)
- Michael Dietrich
- Department of Neurology, Medical Faculty, Heinrich-Heine University Düsseldorf, Düsseldorf, Germany
| | - Christina Hecker
- Department of Neurology, Medical Faculty, Heinrich-Heine University Düsseldorf, Düsseldorf, Germany
| | - Milad Nasiri
- Department of Neurology, Medical Faculty, Heinrich-Heine University Düsseldorf, Düsseldorf, Germany
| | - Sogol Samsam
- Department of Neurology, Medical Faculty, Heinrich-Heine University Düsseldorf, Düsseldorf, Germany
| | - Andrea Issberner
- Department of Neurology, Medical Faculty, Heinrich-Heine University Düsseldorf, Düsseldorf, Germany
| | - Zippora Kohne
- Department of Neurology, Medical Faculty, Heinrich-Heine University Düsseldorf, Düsseldorf, Germany
| | - Hans-Peter Hartung
- Department of Neurology, Medical Faculty, Heinrich-Heine University Düsseldorf, Düsseldorf, Germany
| | - Philipp Albrecht
- Department of Neurology, Medical Faculty, Heinrich-Heine University Düsseldorf, Düsseldorf, Germany
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Earla JR, Paranjpe R, Kachru N, Hutton GJ, Aparasu RR. Use of disease modifying agents in patients with multiple sclerosis: Analysis of ten years of national data. Res Social Adm Pharm 2020; 16:1670-1676. [DOI: 10.1016/j.sapharm.2020.02.016] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Revised: 01/23/2020] [Accepted: 02/24/2020] [Indexed: 10/24/2022]
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Rodríguez de Castro B, Pampín Sánchez R, Tembrás Martinez S, Ayastuy Ruiz A, Martínez-Múgica Barbosa C. Alemtuzumab for relapsing multiple sclerosis in clinical practice: A four-year retrospective one-center study. INTERNATIONAL JOURNAL OF RISK & SAFETY IN MEDICINE 2020; 31:259-265. [DOI: 10.3233/jrs-191029] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Background: Disease-modifying therapies for multiple sclerosis have been developed tremendously over the last two decades. Objective: The aim of this study was to review the short-, medium-, and long-term safety of alemtuzumab in relapsing remitting multiple sclerosis (RRMS). Method: This retrospective observational study (2015–2019) included all patients with highly active or rapidly progressing and aggressive RRMS who were treated with alemtuzumab at the Cabueñes University Hospital. The short-, medium-, and long-term adverse effects were evaluated following the risk management program of the European Medicines Agency. Results: 39 patients were included, 23 of them received at least two cycles of treatment. Most patients showed at least one adverse event. The following adverse reactions were reported: infusional reactions (17), urinary tract infections (six), thrombopenia (five), and thyroid dysfunction (six). Conclusion: In clinical practice alemtuzumab showed an acceptable safety profile in selected patients even if all of them suffered at least one adverse effect. Thorough and prolonged follow-up is required to further confirm the safety of this drug.
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Sen MK, Almuslehi MSM, Shortland PJ, Coorssen JR, Mahns DA. Revisiting the Pathoetiology of Multiple Sclerosis: Has the Tail Been Wagging the Mouse? Front Immunol 2020; 11:572186. [PMID: 33117365 PMCID: PMC7553052 DOI: 10.3389/fimmu.2020.572186] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2020] [Accepted: 08/27/2020] [Indexed: 12/18/2022] Open
Abstract
Multiple Sclerosis (MS) is traditionally considered an autoimmune-mediated demyelinating disease, the pathoetiology of which is unknown. However, the key question remains whether autoimmunity is the initiator of the disease (outside-in) or the consequence of a slow and as yet uncharacterized cytodegeneration (oligodendrocytosis), which leads to a subsequent immune response (inside-out). Experimental autoimmune encephalomyelitis has been used to model the later stages of MS during which the autoimmune involvement predominates. In contrast, the cuprizone (CPZ) model is used to model early stages of the disease during which oligodendrocytosis and demyelination predominate and are hypothesized to precede subsequent immune involvement in MS. Recent studies combining a boost, or protection, to the immune system with disruption of the blood brain barrier have shown CPZ-induced oligodendrocytosis with a subsequent immune response. In this Perspective, we review these recent advances and discuss the likelihood of an inside-out vs. an outside-in pathoetiology of MS.
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Affiliation(s)
- Monokesh K Sen
- School of Medicine, Western Sydney University, Penrith, NSW, Australia
| | - Mohammed S M Almuslehi
- School of Medicine, Western Sydney University, Penrith, NSW, Australia.,Department of Physiology, College of Veterinary Medicine, University of Diyala, Baqubah, Iraq
| | - Peter J Shortland
- School of Science, Western Sydney University, Penrith, NSW, Australia
| | - Jens R Coorssen
- Departments of Health Sciences and Biological Sciences, Faculties of Applied Health Sciences and Mathematics & Science, Brock University, St. Catharines, ON, Canada
| | - David A Mahns
- School of Medicine, Western Sydney University, Penrith, NSW, Australia
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Zeng Y, Li Z, Zhu H, Gu Z, Zhang H, Luo K. Recent Advances in Nanomedicines for Multiple Sclerosis Therapy. ACS APPLIED BIO MATERIALS 2020; 3:6571-6597. [PMID: 35019387 DOI: 10.1021/acsabm.0c00953] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Yujun Zeng
- Huaxi MR Research Center (HMRRC), Department of Radiology, Functional and Molecular Imaging Key Laboratory of Sichuan Province, National Clinical Research Center for Geriatrics, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Zhiqian Li
- Huaxi MR Research Center (HMRRC), Department of Radiology, Functional and Molecular Imaging Key Laboratory of Sichuan Province, National Clinical Research Center for Geriatrics, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Hongyan Zhu
- Huaxi MR Research Center (HMRRC), Department of Radiology, Functional and Molecular Imaging Key Laboratory of Sichuan Province, National Clinical Research Center for Geriatrics, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Zhongwei Gu
- Huaxi MR Research Center (HMRRC), Department of Radiology, Functional and Molecular Imaging Key Laboratory of Sichuan Province, National Clinical Research Center for Geriatrics, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Hu Zhang
- Amgen Bioprocessing Centre, Keck Graduate Institute, Claremont, California 91711, United States
| | - Kui Luo
- Huaxi MR Research Center (HMRRC), Department of Radiology, Functional and Molecular Imaging Key Laboratory of Sichuan Province, National Clinical Research Center for Geriatrics, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China
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Stevens MY, Cropper HC, Lucot KL, Chaney AM, Lechtenberg KJ, Jackson IM, Buckwalter MS, James ML. Development of a CD19 PET tracer for detecting B cells in a mouse model of multiple sclerosis. J Neuroinflammation 2020; 17:275. [PMID: 32948198 PMCID: PMC7501720 DOI: 10.1186/s12974-020-01880-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Accepted: 06/23/2020] [Indexed: 01/11/2023] Open
Abstract
Background B cells play a central role in multiple sclerosis (MS) through production of injurious antibodies, secretion of pro-inflammatory cytokines, and antigen presentation. The therapeutic success of monoclonal antibodies (mAbs) targeting B cells in some but not all individuals suffering from MS highlights the need for a method to stratify patients and monitor response to treatments in real-time. Herein, we describe the development of the first CD19 positron emission tomography (PET) tracer, and its evaluation in a rodent model of MS, experimental autoimmune encephalomyelitis (EAE). Methods Female C57BL/6 J mice were induced with EAE through immunization with myelin oligodendrocyte glycoprotein (MOG1–125). PET imaging of naïve and EAE mice was performed 19 h after administration of [64Cu]CD19-mAb. Thereafter, radioactivity in organs of interest was determined by gamma counting, followed by ex vivo autoradiography of central nervous system (CNS) tissues. Anti-CD45R (B220) immunostaining of brain tissue from EAE and naïve mice was also conducted. Results Radiolabelling of DOTA-conjugated CD19-mAb with 64Cu was achieved with a radiochemical purity of 99% and molar activity of 2 GBq/μmol. Quantitation of CD19 PET images revealed significantly higher tracer binding in whole brain of EAE compared to naïve mice (2.02 ± 0.092 vs. 1.68 ± 0.06 percentage of injected dose per gram, % ID/g, p = 0.0173). PET findings were confirmed by ex vivo gamma counting of perfused brain tissue (0.22 ± 0.020 vs. 0.12 ± 0.003 % ID/g, p = 0.0010). Moreover, ex vivo autoradiography of brain sections corresponded with PET imaging results and the spatial distribution of B cells observed in B220 immunohistochemistry—providing further evidence that [64Cu]CD19-mAb enables visualization of B cell infiltration into the CNS of EAE mice. Conclusion CD19-PET imaging can be used to detect elevated levels of B cells in the CNS of EAE mice, and has the potential to impact the way we study, monitor, and treat clinical MS.
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Affiliation(s)
- Marc Y Stevens
- Department of Radiology, Molecular Imaging Program at Stanford, 1201 Welch Rd, Stanford, CA, 94305, USA
| | - Haley C Cropper
- Department of Radiology, Molecular Imaging Program at Stanford, 1201 Welch Rd, Stanford, CA, 94305, USA
| | | | - Aisling M Chaney
- Department of Radiology, Molecular Imaging Program at Stanford, 1201 Welch Rd, Stanford, CA, 94305, USA
| | - Kendra J Lechtenberg
- Department of Neurology & Neurological Sciences, Stanford University, Stanford, CA, USA
| | - Isaac M Jackson
- Department of Radiology, Molecular Imaging Program at Stanford, 1201 Welch Rd, Stanford, CA, 94305, USA
| | - Marion S Buckwalter
- Department of Neurology & Neurological Sciences, Stanford University, Stanford, CA, USA
| | - Michelle L James
- Department of Radiology, Molecular Imaging Program at Stanford, 1201 Welch Rd, Stanford, CA, 94305, USA. .,Department of Neurology & Neurological Sciences, Stanford University, Stanford, CA, USA.
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Recent advances of long noncoding RNAs involved in the development of multiple sclerosis. Chin J Nat Med 2020; 18:36-46. [PMID: 31955822 DOI: 10.1016/s1875-5364(20)30003-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2019] [Indexed: 12/12/2022]
Abstract
Given the rapid increase of patients with autoimmune diseases and the lack of satisfactory therapies, the discovery of novel and effective therapeutic targets have been in an urgent demand. Recent studies have revealed that long noncoding RNAs (lncRNAs) play crucial roles in the development of multiple sclerosis (MS), which provides a new opportunity of uncovering novel mechanism associated with the progression of MS. This review highlights the dysregulation of lncRNAs in the development of MS in patients and animal models. Additionally, the potential clinical relevance of lncRNAs severed as therapeutic targets and diagnostic markers are discussed.
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Lin WW, Lu YC, Chuang CH, Cheng TL. Ab locks for improving the selectivity and safety of antibody drugs. J Biomed Sci 2020; 27:76. [PMID: 32586313 PMCID: PMC7318374 DOI: 10.1186/s12929-020-00652-z] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Accepted: 04/22/2020] [Indexed: 02/06/2023] Open
Abstract
Monoclonal antibodies (mAbs) are a major targeted therapy for malignancies, infectious diseases, autoimmune diseases, transplant rejection and chronic inflammatory diseases due to their antigen specificity and longer half-life than conventional drugs. However, long-term systemic antigen neutralization by mAbs may cause severe adverse events. Improving the selectivity of mAbs to distinguish target antigens at the disease site from normal healthy tissue and reducing severe adverse events caused by the mechanisms-of-action of mAbs is still a pressing need. Development of pro-antibodies (pro-Abs) by installing a protease-cleavable Ab lock is a novel and advanced recombinant Ab-based strategy that efficiently masks the antigen binding ability of mAbs in the normal state and selectively "turns on" the mAb activity when the pro-Ab reaches the proteolytic protease-overexpressed diseased tissue. In this review, we discuss the design and advantages/disadvantages of different Ab lock strategies, focusing particularly on spatial-hindrance-based and affinity peptide-based approaches. We expect that the development of different masking strategies for mAbs will benefit the local reactivity of mAbs at the disease site, increase the therapeutic efficacy and safety of long-term treatment with mAbs in chronic diseases and even permit scientists to develop Ab drugs for formerly undruggable targets and satisfy the unmet medical needs of mAb therapy.
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Affiliation(s)
- Wen-Wei Lin
- Department of Laboratory Medicine, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
- Drug Development and Value Creation Research Center, Kaohsiung Medical University, Kaohsiung, Taiwan
- Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Yun-Chi Lu
- Drug Development and Value Creation Research Center, Kaohsiung Medical University, Kaohsiung, Taiwan
- Department of Biomedical and Environmental Biology, Kaohsiung Medical University, 100 Shih-Chuan 1st Road, Kaohsiung, 80708, Taiwan
| | - Chih-Hung Chuang
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
- Drug Development and Value Creation Research Center, Kaohsiung Medical University, Kaohsiung, Taiwan
- Department of Medical Laboratory Science and Biotechnology, College of Health Sciences, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Tian-Lu Cheng
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.
- Drug Development and Value Creation Research Center, Kaohsiung Medical University, Kaohsiung, Taiwan.
- Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan.
- Department of Biomedical and Environmental Biology, Kaohsiung Medical University, 100 Shih-Chuan 1st Road, Kaohsiung, 80708, Taiwan.
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Lotan I, Ganelin-Cohen E, Tartakovsky E, Khasminsky V, Hellmann MA, Steiner I, Ben-Zvi I, Livneh A, Golderman S, Kaplan B. Saliva immunoglobulin free light chain analysis for monitoring disease activity and response to treatment in multiple sclerosis. Mult Scler Relat Disord 2020; 44:102339. [PMID: 32599469 DOI: 10.1016/j.msard.2020.102339] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Revised: 06/14/2020] [Accepted: 06/23/2020] [Indexed: 11/25/2022]
Abstract
BACKGROUND Immunoglobulin free light chains (FLC) have recently gained considerable interest as new promising intrathecal biomarkers of multiple sclerosis (MS). However, lumbar puncture is invasive and not practical for monitoring disease course. This study aimed to assess the utility of saliva FLC as a biomarker of disease activity and response to treatment in MS METHODS: Western blotting was used to study saliva FLC monomers and dimers. The intensity of immunoreactive FLC bands was quantified by electrophoresis analysis, and the obtained values were used as FLC indices to account for kappa and lambda FLC monomer and dimer levels. Firth's logistic regression analysis suitable to study small cohorts was applied to compare FLC levels between M.S. patients in relapse, MS patients in remission, and healthy controls. Association between FLC levels and clinical and radiological parameters was analyzed. RESULTS 55 MS patients and 40 healthy controls were evaluated. Saliva FLC levels were significantly higher in relapse compared to remission. Logistic regression analysis employing a combination of FLC indices confirmed the significant difference between these two groups. The FLC levels were significantly reduced by treatment with corticosteroids. During remission, patients treated with disease-modifying therapies had lower levels of FLC compared to untreated patients. The increased FLC levels were associated with the presence of gadolinium-enhancing lesions, but not with MRI T2 lesion load and EDSS scores. During individual patient follow-up, the changes of the saliva FLC levels were in concordance with the disease activity status. CONCLUSIONS Saliva FLC levels may be a useful biomarker for discriminating between stable remission and active disease. The developed test may serve as a new, non-invasive, and inexpensive tool for monitoring disease activity and response to treatment in MS.
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Affiliation(s)
- Itay Lotan
- Department of Neurology, Rabin Medical Center, Beilinson Hospital, Israel; Sackler Faculty of Medicine, Tel-Aviv University, Israel.
| | - Esther Ganelin-Cohen
- Sackler Faculty of Medicine, Tel-Aviv University, Israel; Institute of Pediatric Neurology, Schneider Children's Medical Center, Petach Tikva 49202, Israel
| | - Evgeny Tartakovsky
- Tartakovsky MLD Consultancy, P.O. Box 71, Rishon Lezion, 7510001, Israel
| | - Vadim Khasminsky
- Sackler Faculty of Medicine, Tel-Aviv University, Israel; Department of Radiology, Rabin Medical Center, Beilinson Hospital, Israel
| | - Mark A Hellmann
- Department of Neurology, Rabin Medical Center, Beilinson Hospital, Israel; Sackler Faculty of Medicine, Tel-Aviv University, Israel
| | - Israel Steiner
- Department of Neurology, Rabin Medical Center, Beilinson Hospital, Israel; Tartakovsky MLD Consultancy, P.O. Box 71, Rishon Lezion, 7510001, Israel
| | - Ilan Ben-Zvi
- Sackler Faculty of Medicine, Tel-Aviv University, Israel; Heller Institute of Medical Research, Sheba Medical Center, Tel-Hashomer, Israel
| | - Avi Livneh
- Sackler Faculty of Medicine, Tel-Aviv University, Israel; Heller Institute of Medical Research, Sheba Medical Center, Tel-Hashomer, Israel
| | - Sizilia Golderman
- Heller Institute of Medical Research, Sheba Medical Center, Tel-Hashomer, Israel
| | - Batia Kaplan
- Heller Institute of Medical Research, Sheba Medical Center, Tel-Hashomer, Israel
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Thome R, Boehm A, Ishikawa LLW, Casella G, Munhoz J, Ciric B, Zhang GX, Rostami A. Comprehensive Analysis of the Immune and Stromal Compartments of the CNS in EAE Mice Reveal Pathways by Which Chloroquine Suppresses Neuroinflammation. Brain Sci 2020; 10:brainsci10060348. [PMID: 32516999 PMCID: PMC7349328 DOI: 10.3390/brainsci10060348] [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] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Revised: 06/02/2020] [Accepted: 06/03/2020] [Indexed: 12/11/2022] Open
Abstract
Multiple sclerosis (MS) and experimental autoimmune encephalomyelitis (EAE) are neuroinflammatory diseases of the central nervous system (CNS), where leukocytes and CNS resident cells play important roles in disease development and pathogenesis. The antimalarial drug chloroquine (CQ) has been shown to suppress EAE by modulating dendritic cells (DCs) and Th17 cells. However, the mechanism of action by which CQ modulates EAE is far from being elucidated. Here, we comprehensively analyzed the CNS of CQ and PBS-treated EAE mice to identify and characterize the cells that are affected by CQ. Our results show that leukocytes are largely modulated by CQ and have a reduction in the expression of inflammatory markers. Intriguingly, CQ vastly modulated the CNS resident cells astrocytes, oligodendrocytes (OLs) and microglia (MG), with the latter producing IL-10 and IL-12p70. Overall, our results show a panoramic view of the cellular components that are affect by CQ and provide further evidence that drug repurposing of CQ will be beneficial to MS patients.
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50
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Earla JR, Thornton JD, Hutton GJ, Aparasu RR. Marginal Health Care Expenditure Burden Among U.S. Civilian Noninstitutionalized Individuals with Multiple Sclerosis: 2010-2015. J Manag Care Spec Pharm 2020; 26:741-749. [PMID: 32463779 PMCID: PMC10391019 DOI: 10.18553/jmcp.2020.26.6.741] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
BACKGROUND Multiple sclerosis (MS) is a chronic neuroinflammatory disorder with significant health care burden. However, little is known about health care expenditures since the introduction of oral agents for MS after 2010. OBJECTIVE To analyze health care expenditures in individuals with MS using Medical Expenditure Panel Survey (MEPS) data from 2010-2015. METHODS This retrospective cross-sectional study included adults (≥ 18 years) with MS (Clinical Classification Code 080) and those without MS based on the 2010-2015 full year consolidated MEPS Household Component and Medical Provider Component data files. Descriptive weighted analyses were performed to compare health care expenditures between individuals with MS and without MS. The 2-part model involving probit and generalized linear models was used to estimate the marginal increase in total health care expenditures for MS patients. RESULTS There were 0.61 million patients (95% CI = 0.50-0.72) diagnosed with MS annually, accounting for a prevalence of 0.25%. The 2-part model revealed that the marginal total health care expenditures in patients diagnosed with MS were $20,103.49 (95% CI = $14,516.24-$25,690.73) more compared with those without MS. Further, the mean adjusted prescription medication expenditures for the MS group were $13,092.16 (95% CI = $9,452.20-$16,732.12) higher than the non-MS group and accounted for 65.12% of total health care expenditures in MS. CONCLUSIONS MS is an expensive neuroinflammatory disease with a majority of the burden attributable to prescription medications. High prescription expenditure burden can be a barrier to optimal patient care in MS. DISCLOSURES No funding was received for this study. Hutton reports grants from Adamas, Biogen, EMD Serono, Genzyme, Hoffman-LaRoche, MedImmune, Mallinckrodt, and Novartis and fees from Biogen, Celgene, Genzyme, Genentech, and Novartis, outside the submitted work. Aparasu reports grants from Novartis, Incyte, and Astellas, outside the submitted work. Earla and Thornton have nothing to disclose. Part of the study findings was presented at the International Society for Pharmacoeconomics and Outcomes Research (ISPOR) 2019 National Conference; May 18-22, 2019; New Orleans, LA.
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Affiliation(s)
- Jagadeswara Rao Earla
- Pharmaceutical Health Outcomes and Policy, College of Pharmacy, University of Houston, Texas
| | - J. Douglas Thornton
- Pharmaceutical Health Outcomes and Policy, College of Pharmacy, University of Houston, Texas
| | | | - Rajender R. Aparasu
- Pharmaceutical Health Outcomes and Policy, College of Pharmacy, University of Houston, Texas
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