Melanie Korsen

ORCID: 0000-0003-2882-002X
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About
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Research Areas
  • Multiple Sclerosis Research Studies
  • Peripheral Neuropathies and Disorders
  • Polyomavirus and related diseases
  • Chronic Lymphocytic Leukemia Research
  • Hereditary Neurological Disorders
  • Immunotherapy and Immune Responses
  • SARS-CoV-2 and COVID-19 Research
  • Systemic Sclerosis and Related Diseases
  • Health Systems, Economic Evaluations, Quality of Life
  • Acute Lymphoblastic Leukemia research
  • Glaucoma and retinal disorders
  • Ocular Diseases and Behçet’s Syndrome
  • Amyotrophic Lateral Sclerosis Research
  • Sarcoidosis and Beryllium Toxicity Research
  • RNA regulation and disease
  • Neuroinflammation and Neurodegeneration Mechanisms
  • Inflammatory Myopathies and Dermatomyositis
  • Mast cells and histamine
  • interferon and immune responses
  • Rheumatoid Arthritis Research and Therapies
  • Autoimmune and Inflammatory Disorders Research
  • Vasculitis and related conditions
  • Immunodeficiency and Autoimmune Disorders
  • CNS Lymphoma Diagnosis and Treatment
  • Muscle and Compartmental Disorders

Heinrich Heine University Düsseldorf
2020-2025

Düsseldorf University Hospital
2021-2024

Essen University Hospital
2021-2023

The University of Sydney
2023

Justus-Liebig-Universität Gießen
2023

Palacký University Olomouc
2023

Medical University of Vienna
2023

University Hospital of Basel
2023

University of Basel
2023

University Hospital Münster
2019-2021

Ingo Kleiter Anna Gahlen Nadja Borisow Katrin Fischer Klaus–Dieter Wernecke and 95 more Kerstin Hellwig Florence Pache Klemens Ruprecht Joachim Havla Tania Kümpfel Orhan Aktaş Hans‐Peter Hartung Marius Ringelstein Christian Geis Christoph Kleinschnitz Achim Berthele Bernhard Hemmer Klemens Angstwurm Jan‐Patrick Stellmann S. Schuster Martin Stangel Florian Lauda Hayrettin Tumani Christoph Mayer Markus Krumbholz Lena Zeltner Ulf Ziemann Ralf A. Linker Matthias Schwab Martin Marziniak Florian Then Bergh Ulrich Hofstadt‐van Oy Oliver Neuhaus Uwe K. Zettl Jürgen Faiss Brigitte Wildemann Friedemann Paul Sven Jarius Corinna Trebst Philipp Albrecht Ilya Ayzenberg Antonios Bayas Judith Bellmann‐Strobl F. Bischof Stefan Bittner Tobias Böttcher Johannes Brettschneider Mathias Buttmann Marcus D’Souza Barbara Ettrich Benedikt Frank Achim Gass Matthias Grothe Kersten Guthke Axel Haarmann Eva Marie Habedank F. Hoffmann Olaf Hoffmann Martin W. Hümmert Jutta Junghans Markku Kaste Barbara Kaulen Pawel Kermer Peter Kern Luisa Klotz Wolfgang Köhler E. Kolesilova Melanie Korsen Markus C. Kowarik Stefan Langel D.H. Lee Martin Liebetrau Felix Luessi Wael Marouf Stefanie Meister Arthur Melms Imke Metz Christoph Münch Sabine Niehaus Marc Pawlitzki Hannah Pellkofer Hans-Ulrich Puhlmann Refik Pul N. Retzlaf Arne Riedlinger Paulus Rommer Luise Röpke Kevin Rostásy Lioba Rückriem Christoph Ruschil Sven Schippling Makbule Şenel Joern P. Sieb Claudia Sommer Annette Spreer Andreas Steinbrecher Heike Stephanik Muriel Stoppe Marie Süße Björn Tackenberg

To analyze whether 1 of the 2 apheresis techniques, therapeutic plasma exchange (PE) or immunoadsorption (IA), is superior in treating neuromyelitis optica spectrum disorder (NMOSD) attacks and to identify predictive factors for complete remission (CR).This retrospective cohort study was based on registry German Neuromyelitis Optica Study Group, a nationwide network established 2008. It recruited patients with diagnosed according 2006 Wingerchuk criteria aquaporin-4...

10.1212/nxi.0000000000000504 article EN cc-by-nc-nd Neurology Neuroimmunology & Neuroinflammation 2018-09-27

Background Vaccination has proven to be effective in preventing SARS-CoV-2 transmission and severe disease courses. However, immunocompromised patients have not been included clinical trials real-world data point an attenuated immune response vaccines among with multiple sclerosis (MS) receiving immunomodulatory therapies. Methods We performed a retrospective study including 59 ocrelizumab (OCR)-treated MS who received vaccination. Anti-SARS-CoV-2-antibody titres, routine blood parameters...

10.1136/jnnp-2021-328197 article EN cc-by-nc Journal of Neurology Neurosurgery & Psychiatry 2022-02-22

Introduction: The efficacy of anti-CD20 antibodies has significantly contributed to advancing our understanding disease pathogenesis and improved treatment outcomes in relapsing-remitting multiple sclerosis (RRMS). A comprehensive analysis the peripheral immune cell profile, combined with prospective clinical characterization, RRMS patients treated ocrelizumab (OCR) or ofatumumab (OFA) was performed further understand reconstitution following B-cell depletion. Methods: REBELLION-MS is a...

10.3390/cells14070552 article EN cc-by Cells 2025-04-06
Marius Ringelstein Jens Harmel Hanna Zimmermann Alexander U. Brandt Friedemann Paul and 95 more Axel Haarmann Mathias Buttmann Martin W. Hümmert Corinna Trebst Christoph Schroeder Ilya Ayzenberg Ingo Kleiter Kerstin Hellwig Joachim Havla Tania Kümpfel Sven Jarius Brigitte Wildemann Paulus Rommer Martin S. Weber Hannah Pellkofer Luise Röpke Christian Geis Nele Retzlaff Uwe K. Zettl Michael Deppe Luisa Klotz Kim Lea Young Jan‐Patrick Stellmann Matthias Kaste Pawel Kermer Wael Marouf Florian Lauda Hayrettin Tumani Jonas Graf Alexander Klistorner Hans‐Peter Hartung Orhan Aktaş Philipp Albrecht Klemens Angstwurm Antonios Bayas Achim Berthele Judith Bellmann–Strobl Felix Bischof Stefan Bittner Tobias Böttcher Johannes Brettschneider Marcus D’Souza Barbara Ettrich Jürgen Faiss Benedikt Frank Anna Gahlen Achim Gass Matthias Grothe Kerstin Guthke Eva Marie Habedank Bernhard Hemmer Frank Hoffmann Olaf Hoffmann Ulrich Hofstadt‐van Oy Jutta Junghans Barbara Kaulen Peter Kern Christoph Kleinschnitz Wolfgang Köhler Melanie Korsen Markus C. Kowarik Markus Krumbholz Stefan Langel Martin Liebetrau Ralf A. Linker De-Hyung Lee Felix Luessi Martin Marziniak Christoph Mayer Stefanie Meister Arthur Melms Imke Metz Christoph Münch Oliver Neuhaus Sabine Niehaus Florence Pache Marc Pawlitzki Hans-Ulrich Puhlmann Refik Pul Kevin Rostásy Lioba Rückriem Klemens Ruprecht Christoph Ruschil Sven Schippling S. Schuster Matthias Schwab Makbule Şenel Jörn Peter Sieb Nadja Siebert Claudia Sommer Annette Spreer Martin Stangel A. Steinbrecher Heike Stephanik Muriel Stoppe

To investigate if patients with neuromyelitis optica spectrum disorder (NMOSD) develop subclinical visual pathway impairment independent of acute attacks.A total 548 longitudinally assessed full-field evoked potentials (VEP) 167 NMOSD from 16 centers were retrospectively evaluated for changes P100 latencies and P100-N140 amplitudes. Rates change in (RCL) amplitudes (RCA) over time analyzed each individual eye using linear regression compared generalized estimating equation models.The rates...

10.1212/wnl.0000000000008684 article EN Neurology 2019-12-04

Myelin oligodendrocyte glycoprotein-antibody-associated disease (MOGAD) is an inflammatory autoimmune condition of the central nervous system. However, data on pain and depression have remained scarce. The aim this study was to assess features chronic as well their impact health-related quality life (hr-QoL) in MOGAD.Patients with MOGAD were identified Neuromyelitis Optica Study Group registry. Data acquired by a questionnaire, including clinical, demographic, (PainDetect, Brief Pain...

10.1111/ene.14729 article EN European Journal of Neurology 2021-01-14

Abstract Background Immune dysregulation is a hallmark of autoimmune diseases the central nervous system (CNS), characterized by an excessive immune response, and primary CNS tumors (pCNS-tumors) showing highly immunosuppressive parenchymal microenvironment. Methods Aiming to provide novel insights into pathogenesis autoimmunity cerebral tumor immunity, we analyzed peripheral blood (PB) cerebrospinal fluid (CSF) 81 limbic encephalitis (ALE), 148 relapsing–remitting multiple sclerosis (RRMS),...

10.1186/s12974-024-03269-3 article EN cc-by Journal of Neuroinflammation 2024-11-04

To report 77 patients with multiple sclerosis (MS) who developed skin-related adverse events (AEs) following treatment cladribine.We evaluated our prospective bicentric cladribine cohort. Cladribine-treated a skin AE were identified.Two hundred thirty-nine cladribine-treated MS evaluated. Seventy-seven (32%) showed at least 1 median month after initiation (range: 1-12). Within first 3 months last exposition, hair thinning (n = 28, 12%), rash 20; 8%), mucositis 13, 5%), and pruritus 6, 3%)...

10.1212/nxi.0000000000000990 article EN cc-by-nc-nd Neurology Neuroimmunology & Neuroinflammation 2021-04-10

Background and Objectives Cladribine is a cytotoxic drug which ameliorates the clinical course of relapsing-remitting multiple sclerosis. In addition to cytotoxicity, mode action may include immunomodulatory mechanisms. This in vitro study was designed investigate cladribine's effects on cell function after removal cladribine distinguish versus effects. Methods Cells were incubated absence or presence (1×10-8 M 1×10-5 M) for 72 h. removed from culture surviving peripheral blood mononuclear...

10.1371/journal.pone.0129182 article EN cc-by PLoS ONE 2015-06-18

Dalfampridine exerts beneficial effects on walking ability in a subgroup of patients with multiple sclerosis (MS). These are termed "responders". Here, we investigated whether the responder status respect to mobility measures would determine dalfampridine treatment effect other MS symptoms. We therefore assessed ability, upper limb function, cognition, fatigue, visual evoked potentials (VEPs), depression, and quality life before after treatment.Patients impaired were recruited. Maximal...

10.1002/brb3.559 article EN cc-by Brain and Behavior 2016-11-11

Therapeutic options targeting inflammation in multiple sclerosis (MS) have evolved rapidly for relapsing-remitting MS, whereas few therapies are available progressive forms of particular secondary MS (SPMS). The approval siponimod SPMS has allowed optimism the otherwise discouraging therapeutic landscape.We conducted a retrospective, multicenter, non-interventional study analyzing efficacy and safety under real-world conditions 227 patients. According to retrospective framework, data was...

10.1186/s42466-022-00219-3 article EN cc-by Neurological Research and Practice 2022-11-07

Cyclic GMP-AMP-synthase is a sensor of endogenous nucleic acids, which subsequently elicits stimulator interferon genes (STING)-dependent type I (IFN) response defending us against viruses and other intracellular pathogens. This pathway can drive pathological inflammation, as documented for interferonopathies. In contrast, specific STING activation subsequent IFN-β release have shown beneficial effects on experimental autoimmune encephalomyelitis (EAE) model multiple sclerosis (MS). Although...

10.3390/ijms21239249 article EN International Journal of Molecular Sciences 2020-12-04

B cell-depleting antibodies were proven as effective strategy for the treatment of relapsing multiple sclerosis (RMS). The monoclonal antibody ocrelizumab was approved in 2017 United States and 2018 European Union, but despite efficacy randomized, controlled clinical trials, its effectiveness real-world setting remains to be fully elucidated. In particular, most study patients naive or switched from injectable therapies, whereas oral substances made up >1% previous treatments.We evaluated...

10.1212/nxi.0000000000200104 article EN cc-by-nc-nd Neurology Neuroimmunology & Neuroinflammation 2023-04-11

Cladribine has been approved for the treatment of multiple sclerosis (MS) and its administration results in a long-lasting depletion lymphocytes. As lymphopenia is known to hamper immune responses vaccination, we evaluated immunogenicity influenza vaccine patients undergoing cladribine at different stages vs. controls. The antibody response 90 cladribine-treated MS was prospectively compared with 10 control subjects receiving platform immunotherapy (NCT05019248). Serum samples were collected...

10.3390/cells12091243 article EN cc-by Cells 2023-04-25

Relapse and MRI activity usually decline with aging but are replaced by progression independent of relapse (PIRA) in patients multiple sclerosis (PwMS). However, several older PwMS continue to experience clinical relapses, the impact on their disease remains undetermined. We aimed determine an index outcomes than 50 years identify risk factors disadvantageous outcomes.

10.1212/wnl.0000000000209574 article EN Neurology 2024-06-13

A critical issue in the management of relapsing MS (RMS) is discontinuation disease-modifying treatments (DMT) due to lack efficacy, intolerability or impending risks. With new therapeutic agents introduced into treatment RMS, immediate- and long-term consequences sequential drug use, as well effect sequence which drugs are given, unclear but may affect adverse events, immunocompetence. In absence clinical studies specifically addressing these concerns, observations from practice particular...

10.1007/s00415-021-10956-1 article EN cc-by Journal of Neurology 2022-01-09

Introduction Given the varying severity of coronavirus disease 2019 (COVID-19) and rapid spread Severe-Acute-Respiratory-Syndrome-Corona-Virus-2 (SARS-CoV-2), vaccine-mediated protection particularly vulnerable individuals has gained increasing attention during course pandemic. Methods We performed a 1-year follow-up study 51 ocrelizumab-treated patients with multiple sclerosis (OCR-pwMS) who received COVID-19 vaccination in 2021. retrospectively identified 37 additional OCR-pwMS, 42 pwMS...

10.3389/fimmu.2022.1037214 article EN cc-by Frontiers in Immunology 2022-12-23

For treatment of relapsing-remitting multiple sclerosis (RRMS), a broad range disease-modifying therapies (DMT) is available. However, few comparative effectiveness studies between different drugs have been performed.This study aimed to compare the efficacy and continuation natalizumab ocrelizumab in real-world cohort patients with (RRMS) from two German university hospitals.We performed retrospective analysis RRMS who initiated or January 2016 April 2019 at hospitals Mainz Düsseldorf....

10.1177/17562864221142924 article EN Therapeutic Advances in Neurological Disorders 2022-01-01

To provide further evidence for sirolimus, a mammalian target of rapamycin inhibitor, as treatment strategy patients with inclusion body myositis (IBM).We acquired longitudinal clinical data and immunological assessments CD8+ T-cell subsets in peripheral blood evaluation potential anti-inflammatory effects sirolimus.Therapy sirolimus 2 mg/day by mouth led to rapid sustained improvement motor symptoms an observation period more than 1 year. Treatment was well tolerated, no occurrence adverse...

10.1111/ene.15231 article EN cc-by-nc-nd European Journal of Neurology 2022-03-07

Abstract Background and purpose To provide an overview on the status of clinical research in neurology Germany. Methods German university hospitals, nonuniversity neurological medical practices were surveyed regarding their activities during period 2013 to 2017. Results Fifty percent 10.6% 5.2% Germany responded our questionnaire. More than 80% studies conducted have been phase III/IV noninterventional trials (NISs), whereas <1% I 3.5% investigator‐initiated (IITs). University hospitals...

10.1111/ene.14763 article EN cc-by-nc-nd European Journal of Neurology 2021-02-08

Thursday, April 30April 14, 2020Free AccessCharacterization of T cells in NMOSD patients - an emerging role for disease pathogenesis (4017)Maren Lindner, Urvashi Bhatia, Andreas Schulte-Mecklenbeck, Timo Wirth, Catharina Gross, Tyge Schmidt, Melanie Korsen, … Show All , Tilman Schneider-Hohendorf, Nicholas Schwab, Sumanta Barman, Orhan Aktas, Norbert Goebels, Anne Winkler, Christine Stadelmann-Nessler, Wolfgang Brueck, Tania Kuempfel, Nadja Siebert, Friedemann Paul, Ingo Kleiter, Heinz...

10.1212/wnl.94.15_supplement.4017 article EN Neurology 2020-04-14
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