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Progressive multifocal leukoencephalopathy

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https://www.readbyqxmd.com/read/28721111/visual-consequences-of-medications-for-multiple-sclerosis-the-good-the-bad-the-ugly-and-the-unknown
#1
REVIEW
Heather E Moss
Multiple sclerosis (MS) is associated with vision changes both due to MS effects on visual pathways and due to medication effects on the visual pathways. Distinguishing the causes of vision change are critical to appropriate diagnosis and management. The incidence, presentation, and treatment of fingolimod-associated macular edema, alemtuzumab-associated thyroid orbitopathy, and progressive multifocal leukoencephalopathy in MS patients are reviewed. Evidence for beneficial effects of acute, chronic, and symptomatic MS medications on vision is presented...
2017: Eye and Brain
https://www.readbyqxmd.com/read/28721050/the-use-of-natalizumab-for-multiple-sclerosis
#2
REVIEW
Rachel Brandstadter, Ilana Katz Sand
Natalizumab is a monoclonal antibody that acts as an α4 integrin antagonist to prevent leukocyte trafficking into the central nervous system. It is US Food and Drug Administration (FDA) approved for the treatment of relapsing-remitting multiple sclerosis (RRMS). Natalizumab demonstrated high efficacy in Phase III trials by reducing the annualized relapse rate, preventing multiple sclerosis (MS) lesion accumulation on magnetic resonance imaging, and decreasing the probability of sustained progression of disability...
2017: Neuropsychiatric Disease and Treatment
https://www.readbyqxmd.com/read/28711999/erratum-to-progressive-multifocal-leukoencephalopathy-in-patients-treated-with-fumaric-acid-esters-a-review-of-19-cases
#3
Robbert-Jan Gieselbach, Annemarie H Muller-Hansma, Martijn T Wijburg, Marjolein S de Bruin-Weller, Bob W van Oosten, Dennis J Nieuwkamp, Frank E Coenjaerts, Mike P Wattjes, Jean-Luc Murk
No abstract text is available yet for this article.
July 15, 2017: Journal of Neurology
https://www.readbyqxmd.com/read/28707781/john-cunningham-virus-conversion-in-relation-to-natalizumab-concentration-in-multiple-sclerosis-patients
#4
Z L E van Kempen, C E Leurs, A de Vries, A Vennegoor, T Rispens, M P Wattjes, J Killestein
BACKGROUND AND PURPOSE: Infection with the John Cunningham virus (JCV) is required for the development of progressive multifocal leukoencephalopathy, the feared complication of natalizumab treatment in multiple sclerosis patients. The JCV seroconversion rate seems higher in natalizumab treated patients than in the normal population, with an unknown cause. METHODS: Natalizumab concentration was correlated to JCV antibody status and seroconversion in a large cohort of multiple sclerosis patients...
July 14, 2017: European Journal of Neurology: the Official Journal of the European Federation of Neurological Societies
https://www.readbyqxmd.com/read/28681388/matrix-metalloproteinase-9-is-decreased-in-natalizumab-treated-multiple-sclerosis-patients-at-risk-for-progressive-multifocal-leukoencephalopathy
#5
Nicolas Fissolo, Béatrice Pignolet, Clara Matute-Blanch, Juan Carlos Triviño, Berta Miró, Miriam Mota, Santiago Perez-Hoyos, Alex Sanchez, Patrick Vermersch, Aurélie Ruet, Jérôme de Sèze, Pierre Labauge, Sandra Vukusic, Caroline Papeix, Laurent Almoyna, Ayman Tourbah, Pierre Clavelou, Thibault Moreau, Jean Pelletier, Christine Lebrun-Frenay, Xavier Montalban, David Brassat, Manuel Comabella
OBJECTIVE: To identify biomarkers associated with the development of progressive multifocal leukoencephalopathy (PML) in multiple sclerosis (MS) patients treated with natalizumab (NTZ). METHODS: Relapsing-remitting MS patients who developed PML under NTZ therapy (pre-PML) and non-PML NTZ-treated patients (NTZ-ctr) were included in the study. Cryopreserved peripheral blood mononuclear cells and serum samples collected at baseline, at 1- and 2-year treated time points, and during PML were analyzed for gene expression by RNA sequencing and for serum protein levels by Luminex and enzyme-linked immunosorbent assays, respectively...
July 6, 2017: Annals of Neurology
https://www.readbyqxmd.com/read/28681343/detectable-cerebrospinal-fluid-jcv-dna-in-late-presenting-hiv-positive-patients-beyond-progressive-multifocal-leukoencephalopathy
#6
S Mornese Pinna, E Scarvaglieri, M G Milia, D Imperiale, V Ghisetti, S Audagnotto, A Prochet, F Lipani, S Bonora, G Di Perri, A Calcagno
In the absence of effective prophylaxis and treatment, therapeutic options in HIV-positive patients with progressive multifocal leukoencephalopathy (PML) are limited to antiretroviral therapy: nevertheless, outcome is poor. We conducted a retrospective study (2009-2015) describing the outcome of 25 HIV-positive patients with detectable cerebrospinal fluid JC virus DNA: 14 had a probable PML while the others had evidence of other inflammatory central nervous system (CNS) affecting disorders. In the former group, 6-month mortality was 45...
July 5, 2017: Journal of Neurovirology
https://www.readbyqxmd.com/read/28674518/brain-susceptibility-changes-in-a-patient-with-natalizumab-related-progressive-multifocal-leukoencephalopathy-a-longitudinal-quantitative-susceptibility-mapping-and-relaxometry-study
#7
Giuseppe Pontillo, Sirio Cocozza, Roberta Lanzillo, Pasquale Borrelli, Anna De Rosa, Vincenzo Brescia Morra, Enrico Tedeschi, Giuseppe Palma
BACKGROUND: Brain MRI plays an essential role in both diagnosis and follow-up of the JC virus infection of the brain. Recently, MR studies with susceptibility-weighted imaging (SWI) sequences have shown hypointensities in U-fibers adjacent to white matter (WM) lesions of progressive multifocal leukoencephalopathy (PML). This finding has been confirmed with the use of quantitative susceptibility mapping (QSM), allowing to hypothesize a paramagnetic effect in these regions. Here, we report the first longitudinal assessment of QSM and R2* maps in natalizumab-associated PML to evaluate serial changes in susceptibility contrast images and their role in PML diagnosis and follow-up...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28665088/a-role-for-susceptibility-weighted-imaging-in-progressive-multifocal-leukoencephalopathy
#8
S M Yap, B Murray, T Lynch, E Kavanagh, P MacMahon
We report a radiologic finding on magnetic resonance imaging (MRI) of the brain of two cases of progressive multifocal leukoencephalopathy (PML) of hypointense signal of subcortical U-fibres on susceptibility weighted (SW) sequence. The first case is a 50-year-old man recently treated with chemotherapy including rituximab for non-Hodgkin's lymphoma. The second case is a 64-year-old woman with human immunodeficiency virus (HIV) infection. Iron deposition is a likely causative factor. We propose that SWI may be especially useful in the assessment of indeterminate cases to reduce the likelihood of a missed diagnosis of PML...
April 10, 2017: Irish Medical Journal
https://www.readbyqxmd.com/read/28643544/varicella-zoster-meningovasculitis-in-a-multiple-sclerosis-patient-treated-with-natalizumab
#9
Patricia Mulero, Cristina Auger, Laura Parolin, Elena Fonseca, Manuel Requena, Jordi Rio, Mar Tintoré, Alex Rovira, Xavier Montalban
BACKGROUND: Natalizumab is associated with the occasional occurrence of progressive multifocal leukoencephalopathy (PML). While natalizumab-associated PML is well described in multiple sclerosis (MS) patients, herpes and other infections have rarely been reported. OBJECTIVE: To report a case of varicella-zoster (VZV) meningovasculitis in a MS patient treated with natalizumab. METHODS: Case report. RESULTS: A 48-year-old woman diagnosed with MS in treatment with natalizumab (Expanded Disability Status Scale (EDSS): 4...
June 1, 2017: Multiple Sclerosis: Clinical and Laboratory Research
https://www.readbyqxmd.com/read/28643229/progressive-multifocal-leukoencephalopathy-in-a-patient-with-lymphoma-and-presumptive-hyper-ige-syndrome
#10
Rahsan Gocmen, Nazire Pinar Acar, Deniz Cagdas, Asli Kurne
We, herein, report a 23-year-old male with a rare inherited immunodeficiency disease, hyperimmunoglobulin IgE syndrome (HIES), who developed progressive multifocal leukoencephalopathy (PML) and lymphoma simultaneously. Primary immunodeficiency of the patient has remained undiagnosed until adulthood. PML is a severe demyelinating disease of the central nervous system caused by John Cunningham virus. HIES is a rare, inherited immunodeficiency characterized by high serum levels of IgE, recurrent staphylococcal infection, eczema, and hypereosinophilia...
June 22, 2017: Journal of Neurovirology
https://www.readbyqxmd.com/read/28641055/long-term-safety-evaluation-of-natalizumab-for-the-treatment-of-multiple-sclerosis
#11
Marinella Clerico, Carlo Alberto Artusi, Alessandra Di Liberto, Simona Rolla, Valentina Bardina, Pierangelo Barbero, Stefania Federica De Mercanti, Luca Durelli
Natalizumab is a humanized monoclonal antibody highly effective in relapsing-remitting multiple sclerosis (MS). Important concerns about its safety have been pointed out mainly because of the risk of progressive multifocal leukoencephalopathy (PML), caused by the opportunistic John-Cunningham virus (JCV). Areas covered: This review analyzes all the safety aspects related to the use and safety of natalizumab in MS patients. Other than PML, post-marketing, safety red-flags have been reported, as liver or haematological serious adverse events...
July 5, 2017: Expert Opinion on Drug Safety
https://www.readbyqxmd.com/read/28638849/refractory-t-cell-anergy-and-rapidly-fatal-progressive-multifocal-leukoencephalopathy-after-prolonged-ctla4-therapy
#12
Manon Dekeyser, Marie-Ghislaine de Goër de Herve, Houria Hendel-Chavez, Céline Labeyrie, David Adams, Ghaïdaa Adebs Nasser, Jacques Gasnault, Antoine Durrbach, Yassine Taoufik
Progressive multifocal leukoencephalopathy (PML) is a deadly demyelinating disease due to central nervous system replication of the human polyomavirus JC virus (JCV) in immunosuppressed patients. The only effective therapeutic approach is to restore anti-JCV T-cell responses. In this study, we describe a case of rapidly fatal PML with JCV T-cell anergy in a renal transplant patient treated with CTLA4-Ig (belatacept, a CD28-B7 costimulation blocker and T-cell anergy inducer). T-cell anergy could not be reversed despite several therapeutic approaches...
2017: Open Forum Infectious Diseases
https://www.readbyqxmd.com/read/28637388/progressive-multifocal-leukoencephalopathy-endemic-viruses-and-lethal-brain-disease
#13
Sheila A Haley, Walter J Atwood
In 1971, the first human polyomavirus was isolated from the brain of a patient who died from a rapidly progressing demyelinating disease known as progressive multifocal leukoencephalopathy. The virus was named JC virus after the initials of the patient. In that same year a second human polyomavirus was discovered in the urine of a kidney transplant patient and named BK virus. In the intervening years it became clear that both viruses were widespread in the human population but only rarely caused disease. The past decade has witnessed the discovery of eleven new human polyomaviruses, two of which cause unusual and rare cancers...
June 21, 2017: Annual Review of Virology
https://www.readbyqxmd.com/read/28635055/melanoma-complicating-treatment-with-natalizumab-for-multiple-sclerosis-a-report-from-the-southern-network-on-adverse-reactions-sonar
#14
Rachel A Sabol, Virginia Noxon, Oliver Sartor, Joseph R Berger, Zaina Qureshi, Dennis W Raisch, LeAnn B Norris, Paul R Yarnold, Peter Georgantopoulos, William J Hrushesky, Laura Bobolts, Paul Ray, Akida Lebby, Robert C Kane, Charles L Bennett
A 43-year-old female with multiple sclerosis developed urethral melanoma. The only potential risk factor was treatment with natalizumab, a humanized monoclonal antibody against α4 integrins. To investigate the risk-exposure relationship, we reviewed this case, all other published cases, and cases of natalizumab-associated melanoma reported to regulatory agencies. Data sources included the Food and Drug Administration's (FDA) Adverse Event Reporting System (FAERS) (2004-2014), a FDA Advisory Committee Meeting Report, and peer-reviewed publications...
July 2017: Cancer Medicine
https://www.readbyqxmd.com/read/28629398/anaplastic-astrocytoma-mimicking-progressive-multifocal-leucoencephalopathy-a-case-report-and-review-of-the-overlapping-syndromes
#15
Ema Kantorová, Michal Bittšanský, Štefan Sivák, Eva Baranovičová, Petra Hnilicová, Vladimír Nosáľ, Daniel Čierny, Kamil Zeleňák, Wolfgang Brück, Egon Kurča
BACKGROUND: Co-occurrence of multiple sclerosis (MS) and glial tumours (GT) is uncommon although occasionally reported in medical literature. Interpreting the overlapping radiologic and clinical characteristics of glial tumours, MS lesions, and progressive multifocal leukoencephalopathy (PML) can be a significant diagnostic challenge. CASE PRESENTATION: We report a case of anaplastic astrocytoma mimicking PML in a 27-year-old patient with a 15-year history of MS...
June 19, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28623673/a-prominent-lactate-peak-as-a-potential-key-magnetic-resonance-spectroscopy-mrs-feature-of-progressive-multifocal-leukoencephalopathy-pml-spectrum-pattern-observed-in-three-patients
#16
Duško Kozić, Mladen Bjelan, Jasmina Boban, Jelena Ostojić, Vesna Turkulov, Aleksandar Todorović, Slobodanka Lemajić-Komazec, Snežana Brkić
Progressive multifocal leukoencephalopathy (PML) is a rare, often fatal, opportunistic infection, associated with demyelinating process. PML is caused by John Cunningham (JC) polyomavirus, and predominantly involves patients with human immunodeficiency virus (HIV) disease or other immunocompromised conditions. The purpose of this report was to determine the role of magnetic resonance spectroscopy (MRS) in establishing the diagnosis of PML. MRS with long and short echo time was performed in two patients with PML associated with HIV infection and in one PML patient associated with chronic lymphocytic leukemia...
June 17, 2017: Bosnian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/28616447/natalizumab-pml-survivors-with-subsequent-ms-treatment-clinico-radiologic-outcome
#17
Elisabeth Maillart, Jean-Sebastien Vidal, David Brassat, Bruno Stankoff, Agnès Fromont, Jérôme de Sèze, Frédéric Taithe, Pierre Clavelou, Bertrand Bourre, Valérie Delvaux, Audrey Rico, Pierre Labauge, Ayman Tourbah, Christine Lebrun, Jean Pelletier, Thibault Moreau, Céline Louapre, Catherine Lubetzki, Caroline Papeix
OBJECTIVE: To describe the clinico-radiologic outcome of MS patients with natalizumab-related progressive multifocal leukoencephalopathy (Nz-PML) surviving and receiving disease-modifying therapy (DMT). METHODS: We describe clinical and radiologic evolution of Nz-PML survivors in an observational retrospective multicenter cohort to clarify the effect of different subsequent MS DMT strategies. Twenty-three patients from 11 centers were analyzed. Outcomes were (1) clinical efficacy of post-PML MS DMT, (2) radiologic efficacy of post-PML MS DMT, (3) radiologic evolution of PML lesion, and (4) disability progression...
May 2017: Neurology® Neuroimmunology & Neuroinflammation
https://www.readbyqxmd.com/read/28601287/cd4-cd8-ratio-during-natalizumab-treatment-in-multiple-sclerosis-patients
#18
Antonio Carotenuto, Giulia Scalia, Francesco Ausiello, Marcello Moccia, Cinzia Valeria Russo, Francesco Saccà, Anna De Rosa, Chiara Criscuolo, Luigi Del Vecchio, Vincenzo Brescia Morra, Roberta Lanzillo
Although improved, the risk of progressive multifocal leukoencephalopathy is a constant threat for patient affected by multiple sclerosis treated with natalizumab. We performed a 24months longitudinal study aimed to evaluate the total WBC and lymphocytes subsets modifications and their correlations with anti-JCV antibody index after 1 and 2years of natalizumab treatment. Natalizumab induced an increase of WBC, total and C19+ lymphocytes together with a decrease of CD3+, CD4+ T lymphocytes and CD4/CD8 ratio, which was positively related to anti-JCV antibodies index at month 0, 12 and 24...
August 15, 2017: Journal of Neuroimmunology
https://www.readbyqxmd.com/read/28592708/low-signal-intensity-rims-along-the-cerebral-cortex-and-u-fibers-on-susceptibility-weighted-imaging-in-progressive-multifocal-leukoencephalopathy
#19
Yuki Arita, Hirokazu Fujiwara, Jun Kurasawa, Suketaka Momoshima, Tsubasa Takizawa, Masahiro Jinzaki
No abstract text is available yet for this article.
June 8, 2017: Magnetic Resonance in Medical Sciences: MRMS
https://www.readbyqxmd.com/read/28588577/immune-reconstitution-inflammatory-syndrome-unmasking-or-worsening-aids-related-progressive-multifocal-leukoencephalopathy-a-literature-review
#20
REVIEW
Anna Fournier, Guillaume Martin-Blondel, Emmanuèle Lechapt-Zalcman, Julia Dina, Apolline Kazemi, Renaud Verdon, Emmanuel Mortier, Arnaud de La Blanchardière
Incidence of progressive multifocal leukoencephalopathy (PML) in HIV-infected patients has declined in the combined antiretroviral therapy (cART) era although a growing number of acquired immunodeficiency syndrome (AIDS)-related PML-immune reconstitution inflammatory syndromes (PML-IRIS) have been published during the same period. Therapeutic management of PML-IRIS is not consensual and mainly relies on corticosteroids. Our main aim was, in addition to provide a thoughtful analysis of published PML-IRIS cases, to assess the benefit of corticosteroids in the management of PML-IRIS, focusing on confirmed cases...
2017: Frontiers in Immunology
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