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Meylor J, Artunduaga DC, Mendoza M, Hooshmand SI, Obeidat AZ. Progressive multifocal leukoencephalopathy in patients with chronic kidney disease. Neurol Sci 2024; 45:1619-1624. [PMID: 37950135 DOI: 10.1007/s10072-023-07182-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Accepted: 11/02/2023] [Indexed: 11/12/2023]
Abstract
Progressive multifocal leukoencephalopathy (PML) is an opportunistic central nervous system infection caused by the human polyomavirus 2, leading to demyelination from oligodendrocyte death and rapid neurologic decline. Most commonly, PML affects patients in immunocompromised states. However, rare reports of PML in an immunocompetent host exist. Here, we report two cases of PML in older individuals with chronic kidney disease (CKD). CKD can ultimately lead to immune system dysfunction and place patients in a relatively immunosuppressed state. Testing for JC virus should remain a consideration for rapid, unexplained neurologic decline even without known immunocompromised status in the appropriate clinical setting.
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Affiliation(s)
- Jennifer Meylor
- Department of Neurology, Medical College of Wisconsin, Milwaukee, WI, USA
| | | | - Michael Mendoza
- Department of Neurology, Medical College of Wisconsin, Milwaukee, WI, USA
| | - Sam I Hooshmand
- Department of Neurology, Medical College of Wisconsin, Milwaukee, WI, USA
| | - Ahmed Z Obeidat
- Department of Neurology, Medical College of Wisconsin, Milwaukee, WI, USA.
- Department of Neurology, Division of Neuroimmunology and Multiple Sclerosis, The Medical College of Wisconsin, Hub of Collaborative Research, 8701 Watertown Plank Road, Milwaukee, WI, 53226, USA.
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Bond ACS, Crocker MA, Wilczek MP, DuShane JK, Sandberg AL, Bennett LJ, Leclerc NR, Maginnis MS. High-throughput drug screen identifies calcium and calmodulin inhibitors that reduce JCPyV infection. Antiviral Res 2024; 222:105817. [PMID: 38246207 PMCID: PMC10922812 DOI: 10.1016/j.antiviral.2024.105817] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2023] [Revised: 01/09/2024] [Accepted: 01/18/2024] [Indexed: 01/23/2024]
Abstract
JC polyomavirus (JCPyV) is a nonenveloped, double-stranded DNA virus that infects the majority of the population. Immunocompetent individuals harbor infection in their kidneys, while severe immunosuppression can result in JCPyV spread to the brain, causing the neurodegenerative disease progressive multifocal leukoencephalopathy (PML). Due to a lack of approved therapies to treat JCPyV and PML, the disease results in rapid deterioration, and is often fatal. In order to identify potential antiviral treatments for JCPyV, a high-throughput, large-scale drug screen was performed using the National Institutes of Health Clinical Collection (NCC). Drugs from the NCC were tested for inhibitory effects on JCPyV infection, and drugs from various classes that reduced JCPyV infection were identified, including receptor agonists and antagonists, calcium signaling modulators, and enzyme inhibitors. Given the role of calcium signaling in viral infection including Merkel cell polyomavirus and simian virus 40 polyomavirus (SV40), calcium signaling inhibitors were further explored for the capacity to impact JCPyV infection. Calcium and calmodulin inhibitors trifluoperazine (TFP), W-7, tetrandrine, and nifedipine reduced JCPyV infection, and TFP specifically reduced viral internalization. Additionally, TFP and W-7 reduced infection by BK polyomavirus, SV40, and SARS-CoV-2. These results highlight specific inhibitors, some FDA-approved, for the possible treatment and prevention of JCPyV and several other viruses, and further illuminate the calcium and calmodulin pathway as a potential target for antiviral drug development.
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Affiliation(s)
- Avery C S Bond
- Department of Molecular and Biomedical Sciences, The University of Maine, Orono, ME, 04469, USA
| | - Mason A Crocker
- Department of Molecular and Biomedical Sciences, The University of Maine, Orono, ME, 04469, USA
| | - Michael P Wilczek
- Department of Molecular and Biomedical Sciences, The University of Maine, Orono, ME, 04469, USA
| | - Jeanne K DuShane
- Department of Molecular and Biomedical Sciences, The University of Maine, Orono, ME, 04469, USA
| | - Amanda L Sandberg
- Department of Molecular and Biomedical Sciences, The University of Maine, Orono, ME, 04469, USA
| | - Lucas J Bennett
- Department of Molecular and Biomedical Sciences, The University of Maine, Orono, ME, 04469, USA
| | - Nicholas R Leclerc
- Department of Molecular and Biomedical Sciences, The University of Maine, Orono, ME, 04469, USA
| | - Melissa S Maginnis
- Department of Molecular and Biomedical Sciences, The University of Maine, Orono, ME, 04469, USA; Graduate School of Biomedical Science and Engineering, Orono, ME, 04469, USA.
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Paolucci M, Gentile L, Gentile M, Borghi A, Merli E, Marchionni E, Guerra L, Galluzzo S, Cilloni N, Simonetti L, Zini A. Progressive multifocal leukoencephalopathy in multiple myeloma: a case report of a patient with SARS-CoV-2 infection and an updated systematic literature review. Neurol Sci 2023; 44:2995-2998. [PMID: 37421487 DOI: 10.1007/s10072-023-06944-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Accepted: 07/04/2023] [Indexed: 07/10/2023]
Abstract
BACKGROUND Progressive multifocal leukoencephalopathy (PML) is a demyelinating disease of the central nervous system caused by a reactivation of the human polyomavirus 2 (HPyV-2, previously known as JCV) in immunosuppressed individuals. Few cases of PML have been described in multiple myeloma (MM) patients. METHODS We described a case of PML in a patient with MM with fatal worsening that occurred during SARS-CoV-2 infection. We also performed a literature review to update the 16 cases series of MM patients with PML already collected until April 2020. RESULTS A 79-year-old female patient with refractory IgA lambda MM in Pomalidomide- Cyclophosphamide-Dexamethasone regimen developed gradual lower limbs and left arm paresis along with a decreased consciousness 3.5 years after the MM diagnosis. Symptoms developed shortly after the recognition of hypogammaglobulinemia. After SARS-CoV-2 infection, her neurological status quickly worsened until she deceased. MRI features and JCV-positive PCR on CSF confirmed the PML diagnosis. Our literature review adds sixteen clinical cases of PML in MM published between May 2020 and March 2023 to the 16 cases already collected in the previously published review by Koutsavlis. DISCUSSION PML has been increasingly described in MM patients. It remains questionable if the HPyV-2 reactivation is determined by the severity of MM itself, by the effect of drugs or by a combination of both. SARS-CoV-2 infection may have a role in worsening PML in affected patients.
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Affiliation(s)
- Matteo Paolucci
- UOC Neurologia e Rete Stroke Metropolitana, Ospedale Maggiore, IRCCS Istituto delle Scienze Neurologiche di Bologna, Largo Bartolo Nigrisoli, 2, Bologna, 40133, Italy.
| | - Luana Gentile
- UOC Neurologia e Rete Stroke Metropolitana, Ospedale Maggiore, IRCCS Istituto delle Scienze Neurologiche di Bologna, Largo Bartolo Nigrisoli, 2, Bologna, 40133, Italy
| | - Mauro Gentile
- UOC Neurologia e Rete Stroke Metropolitana, Ospedale Maggiore, IRCCS Istituto delle Scienze Neurologiche di Bologna, Largo Bartolo Nigrisoli, 2, Bologna, 40133, Italy
| | - Annamaria Borghi
- UOC Neurologia e Rete Stroke Metropolitana, Ospedale Maggiore, IRCCS Istituto delle Scienze Neurologiche di Bologna, Largo Bartolo Nigrisoli, 2, Bologna, 40133, Italy
| | - Elena Merli
- UOC Neurologia e Rete Stroke Metropolitana, Ospedale Maggiore, IRCCS Istituto delle Scienze Neurologiche di Bologna, Largo Bartolo Nigrisoli, 2, Bologna, 40133, Italy
| | - Elisa Marchionni
- Infectious Disease Unit, Department for Integrated Infectious Risk Management, IRCCS Azienda Ospedaliero-Universitaria di Bologna Bologna, Bologna, Italy
| | - Luca Guerra
- Infectious Disease Unit, Department for Integrated Infectious Risk Management, IRCCS Azienda Ospedaliero-Universitaria di Bologna Bologna, Bologna, Italy
| | - Simone Galluzzo
- UOSI Neuroradiologia Ospedale Maggiore, IRCCS Istituto delle Scienze Neurologiche di Bologna, Bologna, Italy
| | - Nicola Cilloni
- Intensive Care Unit, Maggiore Hospital, AUSL Bologna, Bologna, Italy
| | - Luigi Simonetti
- UOSI Neuroradiologia Ospedale Maggiore, IRCCS Istituto delle Scienze Neurologiche di Bologna, Bologna, Italy
| | - Andrea Zini
- UOC Neurologia e Rete Stroke Metropolitana, Ospedale Maggiore, IRCCS Istituto delle Scienze Neurologiche di Bologna, Largo Bartolo Nigrisoli, 2, Bologna, 40133, Italy
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Soni N, Ora M, Mangla R, Singh R, Ellika S, Agarwal A, Meyers SP, Bathla G. Radiological abnormalities in progressive multifocal leukoencephalopathy: Identifying typical and atypical imaging patterns for early diagnosis and differential considerations. Mult Scler Relat Disord 2023; 77:104830. [PMID: 37418930 DOI: 10.1016/j.msard.2023.104830] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Revised: 05/22/2023] [Accepted: 06/11/2023] [Indexed: 07/09/2023]
Abstract
Progressive multifocal leukoencephalopathy (PML) is a rare viral central nervous system (CNS) demyelinating disease primarily associated with a compromised immune system. PML is seen mainly in individuals with human immunodeficiency virus, lymphoproliferative disease, and multiple sclerosis. Patients on immunomodulators, chemotherapy, and solid organ or bone marrow transplants are predisposed to PML. Recognition of various PML-associated typical and atypical imaging abnormalities is critical for early diagnosis and differentiating it from other conditions, especially in high-risk populations. Early PML recognition should expedite efforts at immune-system restoration, allowing for a favorable outcome. This review aims to provide a practical overview of radiological abnormalities in PML patients and address differential considerations.
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Affiliation(s)
- Neetu Soni
- Radiodiagnosis (Neuroradiology and Nuclear Medicine), University of Rochester Medical Center, Rochester, NY 14618, USA.
| | - Manish Ora
- Department of Nuclear Medicine, SGPGIMS, Lucknow, Uttar Pradesh, India
| | | | - Rohit Singh
- Division of Hematology-Oncology at the University of Vermont Medical Center, Burlington, VT, USA
| | - Shehanaz Ellika
- Radiodiagnosis (Neuroradiology and Nuclear Medicine), University of Rochester Medical Center, Rochester, NY 14618, USA
| | - Amit Agarwal
- Radiology, Mayo Clinic in Florida, San Pablo Dr, Jacksonville, FL 32224-1865, USA
| | - Steven P Meyers
- Radiodiagnosis (Neuroradiology and Nuclear Medicine), University of Rochester Medical Center, Rochester, NY 14618, USA
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Nagahori T, Shiraishi W, Nishikawa M, Matsuyoshi A, Ogura T, Yamada Y, Takahashi K, Suzuki T, Nakamichi K, Hashimoto T, Hatano T. A human T-lymphotropic virus-1 carrier who developed progressive multifocal leukoencephalopathy following immunotherapy for sarcoidosis: a case report. BMC Neurol 2023; 23:52. [PMID: 36726087 PMCID: PMC9893603 DOI: 10.1186/s12883-023-03094-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Accepted: 01/27/2023] [Indexed: 02/03/2023] Open
Abstract
BACKGROUND Progressive multifocal leukoencephalopathy (PML) is a devastating demyelinating disorder of the central nervous system caused by opportunistic infection of the JC virus (JCV). CASE PRESENTATION A 58-year-old Japanese woman was admitted to our hospital for aphasia. She had a 5-year history of untreated sarcoidosis and was a human T cell lymphotropic virus-1 (HTLV-1) carrier. Serum angiotensin-converting enzyme, soluble interleukin-2 receptor, lysozyme, and calcium levels were elevated. JCV-DNA was not detected in cerebrospinal fluid by PCR testing. Skin biopsy revealed noncaseating granuloma formation. Bilateral multiple nodular lesions were present on chest X-ray. Brain magnetic resonance imaging showed left frontal and temporal lesions without gadolinium enhancement. As we suspected that systemic sarcoidosis had developed into neurosarcoidosis, we started steroid and infliximab administration. After treatment, the chest X-ray and serum abnormalities ameliorated, but the neurological deficits remained. At 1 month after immunotherapy, she developed right hemiparesis. Cerebrospinal fluid was positive for prototype (PML-type) JCV on repeated PCR testing. Brain biopsy revealed demyelinating lesions with macrophage infiltration, atypical astrocytes, and JCV antigen-positive cells. We diagnosed her with PML and started mefloquine, leading to partial remission. CONCLUSIONS Sarcoidosis and HTLV-1 infection both affect T cell function, especially CD4+ T cells, and may developped the patient's PML. The comorbidity of sarcoidosis, PML, and HTLV-1 infection has not been reported, and this is the world's first report of PML associated with HTLV-1 infection and sarcoidosis.
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Affiliation(s)
- Takashi Nagahori
- grid.415432.50000 0004 0377 9814Department of Neurosurgery, Kokura Memorial Hospital, Fukuoka, Japan
| | - Wataru Shiraishi
- grid.415432.50000 0004 0377 9814Department of Neurology, Kokura Memorial Hospital, Fukuoka, Japan ,Shiraishi Internal Medicine Clinic, Fukuoka, Japan
| | - Masafumi Nishikawa
- grid.415432.50000 0004 0377 9814Department of Neurology, Kokura Memorial Hospital, Fukuoka, Japan
| | - Ayano Matsuyoshi
- grid.415432.50000 0004 0377 9814Department of Neurology, Kokura Memorial Hospital, Fukuoka, Japan
| | - Takenori Ogura
- grid.415432.50000 0004 0377 9814Department of Neurosurgery, Kokura Memorial Hospital, Fukuoka, Japan
| | - Yui Yamada
- grid.415432.50000 0004 0377 9814Department of Pathology, Kokura Memorial Hospital, Fukuoka, Japan
| | - Kenta Takahashi
- grid.410795.e0000 0001 2220 1880Department of Pathology, National Institute of Infectious Diseases, Tokyo, Japan
| | - Tadaki Suzuki
- grid.410795.e0000 0001 2220 1880Department of Pathology, National Institute of Infectious Diseases, Tokyo, Japan
| | - Kazuo Nakamichi
- grid.410795.e0000 0001 2220 1880Department of Virology, National Institute of Infectious Diseases, Tokyo, Japan
| | - Tetsuya Hashimoto
- grid.415432.50000 0004 0377 9814Department of Neurology, Kokura Memorial Hospital, Fukuoka, Japan
| | - Taketo Hatano
- grid.415432.50000 0004 0377 9814Department of Neurosurgery, Kokura Memorial Hospital, Fukuoka, Japan
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Li Q, Tang C, Zhu J, Zhang L. A case of progressive multifocal leukoencephalopathy with hypogammaglobulinemia and a TCF3 mutation. J Neurovirol 2022; 28:616-618. [PMID: 35976539 DOI: 10.1007/s13365-022-01092-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Revised: 01/03/2022] [Accepted: 08/10/2022] [Indexed: 01/13/2023]
Abstract
Progressive multifocal leukoencephalopathy (PML) is a rare and potentially fatal demyelinating disease of the central nervous system (CNS) caused by JC virus; it was previously seen predominantly in immunocompromised patients and those under intense immune suppression. Here, we report the case of a patient with PML with hypogammaglobulinemia and a heterozygous mutation in the TCF3 gene. As the TCF3 gene has been demonstrated to play an important role in the B cell differentiation process and the patient had no other medical history of the immune system, he was diagnosed with common variable immunodeficiency (CVID). To our knowledge, this is the first case of patient with a TCF3 gene deficiency and hypogammaglobulinemia who developed PML.
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Affiliation(s)
- Qiong Li
- Department of Neurology, Daping Hospital, Army Medical University, Chongqing, 400042, People's Republic of China
| | - Chunhua Tang
- Department of Neurology, Daping Hospital, Army Medical University, Chongqing, 400042, People's Republic of China
| | - Jie Zhu
- Department of Neurology, Daping Hospital, Army Medical University, Chongqing, 400042, People's Republic of China
| | - Lili Zhang
- Department of Neurology, Daping Hospital, Army Medical University, Chongqing, 400042, People's Republic of China.
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Kartau M, Auvinen E, Verkkoniemi-Ahola A, Mannonen L, Helanterä I, Anttila VJ. JC polyomavirus DNA detection in clinical practice. J Clin Virol 2021; 146:105051. [PMID: 34883406 DOI: 10.1016/j.jcv.2021.105051] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2021] [Revised: 11/20/2021] [Accepted: 11/29/2021] [Indexed: 12/29/2022]
Abstract
BACKGROUND There are limited data about the use and clinical value of JC polyomavirus (JCPyV) DNA detection in various clinical indications. METHODS We reviewed the clinical records of 410 patients from whom cerebrospinal fluid (CSF), plasma, urine, or tissue samples had been collected for JCPyV DNA polymerase chain reaction (PCR) between 2012 and 2018. RESULTS JCPyV DNA was analyzed in 224 plasma, 190 CSF-, 32 urine and 10 tissue samples. 240 patients had a history of hematopoietic stem cell or solid organ transplantation, 159 had nephrological disease, 90 had hematologic malignancies, 58 had neurological disease, 37 had infectious disease and 23 had AIDS/HIV as underlying disease. Six patients had no underlying disease. The main reasons to take CSF or plasma samples were neurological symptoms of unknown etiology. Most urine samples were taken to monitor kidney transplantation patients. JCPyV DNA PCR contributed to the diagnosis of progressive multifocal leukoencephalopathy in eight patients (2.0%), of which seven had hematologic malignancy as an underlying disease. CONCLUSIONS JCPyV PCR is most informative among immunosuppressed patients with neurologic symptoms. CSF and brain biopsy are useful when there is clinical suspicion of PML, whereas plasma samples are not useful. The value of plasma samples is a matter of dispute in the screening of JCPyV-associated nephropathy, as BK polyomavirus is the causative agent in most polyomavirus-associated nephropathy cases. JCPyV detection is valuable in case the patient has past, current or planned treatment with immunosuppressive drugs.
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Bose G, Rush C, Atkins HL, Freedman MS. A real-world single-centre analysis of alemtuzumab and cladribine for multiple sclerosis. Mult Scler Relat Disord 2021; 52:102945. [PMID: 33901969 DOI: 10.1016/j.msard.2021.102945] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Revised: 02/24/2021] [Accepted: 04/07/2021] [Indexed: 11/28/2022]
Abstract
BACKGROUND Highly active MS may warrant higher efficacy treatments for disease control. However, these often confer more risk and have not been compared in head-to-head clinical trials, making relative efficacy and safety difficult to interpret. Alemtuzumab and cladribine are two high-efficacy treatments given as discrete courses separated by one year, followed by a durable response that potentially does not require ongoing treatment. Before the approval of oral cladribine, our centre had been treating patients with a bioequivalent intravenous (IV) regimen since 2010. The objective of this study is to report the safety and efficacy data of alemtuzumab and cladribine in a real-world, single centre setting. METHODS We retrospectively reviewed all patients treated with alemtuzumab or cladribine at the Ottawa Hospital MS Clinic with 2 or more years of follow-up. Information on baseline demographic variables, previous treatment, and prior disease activity was collected. Outcomes investigated were "no evidence of disease activity" (NEDA) and its constituents: new clinical relapse, new MRI activity, and Expanded Disability Status Scale (EDSS) progression; as well as any adverse events or treatment discontinuation. We performed univariate and multiple logistic regression to determine differences in 2-year NEDA and time-to-event analyses with Cox regression models to determine factors associated with each outcome through the study period. RESULTS Forty-six patients were treated with alemtuzumab and 65 with cladribine of whom 51 (78%) received the intravenous regimen, followed for a total of 420.1 person-years. The cladribine group was older (p=.0002), with higher baseline EDSS (p=.0015), and more likely secondary progressive (p<.0001). Alemtuzumab had a higher rate of 2-year NEDA than cladribine (OR 4.78, 95%CI: 1.57-14.50, p=.006), but beyond 2 years the difference was not statistically significant (HR 0.50, 95%CI: 0.25-1. 30, p=.061). More prior treatments were associated with lower likelihood of retaining NEDA (HR 1.26, 95%CI: 1.03-1.54, p=.027). Alemtuzumab had more infusion reactions (80% vs. 17%, p<.0001), shingles (22% vs. 2%, p=.005), and secondary autoimmunity (52% vs. 3%, p<.0001) than cladribine, but there was no difference in grade 3 or higher adverse events (21.7% vs. 18.5%, p=1.0). CONCLUSION In our cohort alemtuzumab and cladribine achieved similar rates of NEDA in long-term follow-up, with overall less adverse events with cladribine. Patient registries would allow more robust comparisons, detection of adverse events, and assessment of a durable response.
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Affiliation(s)
- Gauruv Bose
- University of Ottawa and The Ottawa Hospital Research Institute, Department of Medicine, The Ottawa Hospital Civic Campus, 1053 Carling Ave, Ottawa ON K1Y 4E9, Canada.
| | - Carolina Rush
- University of Ottawa and The Ottawa Hospital Research Institute, Department of Medicine, The Ottawa Hospital General Campus, Multiple Sclerosis Clinic, 501 Smyth Road, Box 601, Ottawa ON K1H 8L6, Canada.
| | - Harold L Atkins
- University of Ottawa and The Ottawa Hospital Research Institute, Department of Medicine, The Ottawa Hospital General Campus, Blood and Marrow Transplant Program, 501 Smyth Road, Box 926, Ottawa, ON K1H 8L6, Canada.
| | - Mark S Freedman
- University of Ottawa and The Ottawa Hospital Research Institute, Department of Medicine, The Ottawa Hospital General Campus, Multiple Sclerosis Clinic, 501 Smyth Road, Box 601, Ottawa ON K1H 8L6, Canada.
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Abstract
Viral encephalitis is difficult to treat. Herpes simplex encephalitis has been successfully treated with acyclovir, but is still a cause for significant morbidity even with that treatment. A rare form of autoimmune encephalitis related to NMDA receptor antibody after infection by herpes simplex can be treated with corticosteroid therapy. Arthropod-borne encephalitides, such as West Nile virus encephalitis and Eastern equine encephalitis, are primarily treated with supportive measures. Attempts have been made to use immunoglobulin therapy with limited effects. Progressive multifocal leukoencephalopathy has been treated with an emerging immune activation therapy in a limited number of patients with incomplete success.
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Affiliation(s)
- Allen J Aksamit
- Department of Neurology, Mayo Clinic, 200 First Street Southwest, Rochester, MN 55905, USA.
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Lauver MD, Lukacher AE. JCPyV VP1 Mutations in Progressive MultifocalLeukoencephalopathy: Altering Tropismor Mediating Immune Evasion? Viruses 2020; 12:v12101156. [PMID: 33053912 PMCID: PMC7600905 DOI: 10.3390/v12101156] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Revised: 10/08/2020] [Accepted: 10/09/2020] [Indexed: 12/15/2022] Open
Abstract
Polyomaviruses are ubiquitous human pathogens that cause lifelong, asymptomatic infections in healthy individuals. Although these viruses are restrained by an intact immune system, immunocompromised individuals are at risk for developing severe diseases driven by resurgent viral replication. In particular, loss of immune control over JC polyomavirus can lead to the development of the demyelinating brain disease progressive multifocal leukoencephalopathy (PML). Viral isolates from PML patients frequently carry point mutations in the major capsid protein, VP1, which mediates virion binding to cellular glycan receptors. Because polyomaviruses are non-enveloped, VP1 is also the target of the host's neutralizing antibody response. Thus, VP1 mutations could affect tropism and/or recognition by polyomavirus-specific antibodies. How these mutations predispose susceptible individuals to PML and other JCPyV-associated CNS diseases remains to be fully elucidated. Here, we review the current understanding of polyomavirus capsid mutations and their effects on viral tropism, immune evasion, and virulence.
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Katsuse K, Akiyama K, Ishida T, Kitayama C, Ishibashi Y, Ochi M, Kumasaka T, Takahashi K, Suzuki T, Nakamichi K, Saijo M, Hashida H. Progressive multifocal leukoencephalopathy in a patient with primary amyloid light-chain amyloidosis. Clin Neurol Neurosurg 2020; 192:105709. [PMID: 32058201 DOI: 10.1016/j.clineuro.2020.105709] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Revised: 01/10/2020] [Accepted: 02/01/2020] [Indexed: 10/25/2022]
Affiliation(s)
- Kazuto Katsuse
- Department of Neurology, Japanese Red Cross Medical Center, 4-1-22 Hiroo, Shibuya-ku, Tokyo, 150-8935, Japan.
| | - Kaho Akiyama
- Department of Neurology, Japanese Red Cross Medical Center, 4-1-22 Hiroo, Shibuya-ku, Tokyo, 150-8935, Japan
| | - Tadao Ishida
- Department of Hematology, Japanese Red Cross Medical Center, 4-1-22 Hiroo, Shibuya-ku, Tokyo, 150-8935, Japan
| | - Chigusa Kitayama
- Department of Nephrology, Japanese Red Cross Medical Center, 4-1-22 Hiroo, Shibuya-ku, Tokyo, 150-8935, Japan
| | - Yoshitaka Ishibashi
- Department of Nephrology, Japanese Red Cross Medical Center, 4-1-22 Hiroo, Shibuya-ku, Tokyo, 150-8935, Japan
| | - Mieko Ochi
- Department of Pathology, Japanese Red Cross Medical Center, 4-1-22 Hiroo, Shibuya-ku, Tokyo, 150-8935, Japan
| | - Toshio Kumasaka
- Department of Pathology, Japanese Red Cross Medical Center, 4-1-22 Hiroo, Shibuya-ku, Tokyo, 150-8935, Japan
| | - Kenta Takahashi
- Department of Pathology, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo, 162-8640, Japan
| | - Tadaki Suzuki
- Department of Pathology, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo, 162-8640, Japan
| | - Kazuo Nakamichi
- Department of Virology 1, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo, 162-8640, Japan
| | - Masayuki Saijo
- Department of Virology 1, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo, 162-8640, Japan
| | - Hideji Hashida
- Department of Neurology, Japanese Red Cross Medical Center, 4-1-22 Hiroo, Shibuya-ku, Tokyo, 150-8935, Japan
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Mullins C, Miranda J, Sandoval H, Ramos-Duran L, Tonarelli SB. The Benefit of Mirtazapine in the Treatment of Progressive Multifocal Leukoencephalopathy in a Young HIV-positive Patient: A Case Report. Innov Clin Neurosci 2018; 15:33-35. [PMID: 29497578 PMCID: PMC5819719] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Highly active antiretroviral therapy is well-established in the treatment of human immunodeficiency virus (HIV)-positive patients. Nonadherence with therapy regimens often leads to the occurrence of opportunistic infections that further complicate treatment and challenge the treating physician. We report a young HIV-positive patient who suffered from progressive multifocal leukoencephalopathy caused by the human John Cunningham virus and showed objective clinical improvement after adding mirtazapine to the treatment regimen, an observation that is supported by the emerging literature.
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Affiliation(s)
- Carola Mullins
- Drs. Mullins, Sandoval, and Ramos-Duran are with the Department of Radiology
- Dr. Miranda is with the Paul Foster School of Medicine
- Dr. Tonarelli is with the Department of Psychiatry- all with Texas Tech University Health Sciences Center in El Paso, Texas
| | - Jorge Miranda
- Drs. Mullins, Sandoval, and Ramos-Duran are with the Department of Radiology
- Dr. Miranda is with the Paul Foster School of Medicine
- Dr. Tonarelli is with the Department of Psychiatry- all with Texas Tech University Health Sciences Center in El Paso, Texas
| | - Hugo Sandoval
- Drs. Mullins, Sandoval, and Ramos-Duran are with the Department of Radiology
- Dr. Miranda is with the Paul Foster School of Medicine
- Dr. Tonarelli is with the Department of Psychiatry- all with Texas Tech University Health Sciences Center in El Paso, Texas
| | - Luis Ramos-Duran
- Drs. Mullins, Sandoval, and Ramos-Duran are with the Department of Radiology
- Dr. Miranda is with the Paul Foster School of Medicine
- Dr. Tonarelli is with the Department of Psychiatry- all with Texas Tech University Health Sciences Center in El Paso, Texas
| | - Silvina B Tonarelli
- Drs. Mullins, Sandoval, and Ramos-Duran are with the Department of Radiology
- Dr. Miranda is with the Paul Foster School of Medicine
- Dr. Tonarelli is with the Department of Psychiatry- all with Texas Tech University Health Sciences Center in El Paso, Texas
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Schröder C, Baerlecken NT, Pannicke U, Dörk T, Witte T, Jacobs R, Stoll M, Schwarz K, Grimbacher B, Schmidt RE, Atschekzei F. Evaluation of RAG1 mutations in an adult with combined immunodeficiency and progressive multifocal leukoencephalopathy. Clin Immunol 2017; 179:1-7. [PMID: 28216420 DOI: 10.1016/j.clim.2016.12.013] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2016] [Accepted: 12/16/2016] [Indexed: 11/22/2022]
Abstract
Here we describe novel mutations in recombination activation gene 1 (RAG1) in a compound heterozygous male patient with combined T and B cell immunodeficiency (CID). Clinical manifestations besides antibody deficiency included airway infections, granulomatosis and autoimmune features. He died at the age of 37 due to PML caused by JC virus infection. By targeted next-generation sequencing we detected post mortem in this patient three mutations in RAG1. One allele harbored two novel mutations (c.1123C>G, p.H375D and c.1430delC, p.F478Sfs*14), namely a missense variant and a frameshift deletion, of which the latter leads to a truncated RAG1 protein. The other allele revealed a previously described missense mutation (c.1420C>T, p.R474C, rs199474678). Functional analysis of the p.R474C variant in an in vitro V(D)J recombination assay exhibited reduced recombination activity compared to a wild-type control. Our findings suggest that mutations in RAG1, specifically the p.R474C variant, can be associated with relatively mild clinical symptoms or delayed occurrence of T cell and B cell deficiencies but may predispose to PML.
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de Regt MJA, Murk JL, Schneider-Hohendorf T, Wattjes MP, Hoepelman AIM, Arends JE. Progressive multifocal leukoencephalopathy and black fungus in a patient with rheumatoid arthritis without severe lymphocytopenia. JMM Case Rep 2016; 3:e005053. [PMID: 28348775 PMCID: PMC5330243 DOI: 10.1099/jmmcr.0.005053] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2015] [Accepted: 06/04/2016] [Indexed: 11/18/2022] Open
Abstract
Introduction: Progressive multifocal leukoencephalopathy (PML) is a rare demyelinating brain infection caused by JC polyomavirus (JCV), primarily seen in patients with severely compromised cellular immunity. Clinical presentation varies depending on the affected white matter. PML prognosis is variable and effective treatments are lacking. Case presentation: A 75-year-old Chinese woman with type 2 diabetes mellitus, chronic kidney disease and rheumatoid arthritis, treated with low-dose methotrexate and prednisolone for 2.5 years, developed a Pleurostomophora richardsiae infection of her left arm. After 6 months of treating this rare black fungus infection with voriconazole, surgery and immunosuppression discontinuation, she presented with progressive afebrile encephalopathy with right-sided hemiparesis. There were no signs of inflammation or metabolic abnormalities. Brain magnetic resonance imaging revealed diffuse frontal white matter lesions and a cerebrospinal fluid PCR confirmed PML due to JC virus. Severe lymphopenia was never present, and at PML diagnosis, CD4 and CD8 T-cell counts were 454 mm−3 and 277 mm−3. CD8 T-cells were able to respond to JCV VP1 peptide stimulation with TNFα secretion. Peripheral B-cell count was only 8 mm−3. Mirtazapine and Maraviroc were started, but unfortunately, she rapidly deteriorated and died 5 weeks after PML diagnosis. Conclusion: Although peripheral lymphocyte counts were never low and CD4 T-cell count was close to normal, the persistent black fungus infection was a hallmark of severely compromised cellular immunity. The unexpected extremely low absolute B-cell count might suggest a protective role for B-cells. The paradoxical, clinical PML onset months after immunosuppressive discontinuation suggests that it was only discovered in the context of an immune reconstitution inflammatory syndrome.
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Affiliation(s)
- Marieke J A de Regt
- Department of Internal Medicine and infectious Diseases, University Medical Centre Utrecht, the Netherlands
| | - Jean-Luc Murk
- Department of Medical Microbiology, University Medical Centre Utrecht , Utrecht , the Netherlands
| | | | - Mike P Wattjes
- Department of Radiology and Nuclear Medicine, VU University Medical Centre, Amsterdam, the Netherlands
| | - Andy I M Hoepelman
- Department of Internal Medicine and infectious Diseases, University Medical Centre Utrecht, the Netherlands
| | - Joop E Arends
- Department of Internal Medicine and infectious Diseases, University Medical Centre Utrecht, the Netherlands
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Abstract
The human polyomavirus JC (JCV) infects glial cells and is the etiologic agent of the CNS demyelinating disease progressive multifocal leukoencephalopathy. JCV can infect granule cell neurons of the cerebellum, causing JCV granule cell neuronopathy and cortical pyramidal neurons in JCV encephalopathy. Whether JCV also infects neurons in other areas of the CNS is unclear. We determined the prevalence and pattern of JCV infection of the hippocampus in archival samples from 28 patients with known JCV infection of the CNS and 66 control subjects. Among 28 patients, 11 (39.3%) had JCV infection of hippocampus structures demonstrated by immunohistochemistry. Those included gray matter (dentate gyrus and cornu ammonis, subiculum) in 11/11 and afferent or efferent white matter tracts (perforant path, alveus, fimbria) in 10/11. In the hippocampus, JCV infected granule cell and pyramidal neurons, astrocytes, and oligodendrocytes. Although glial cells expressed either JCV regulatory T Antigen or JCV VP1 capsid protein, infected neurons expressed JCV T Antigen only, suggesting an abortive/restrictive infection. None of the 66 control subjects had evidence of hippocampal JCV protein expression by immunohistochemistry or JCV DNA by in situ hybridization. These results greatly expand our understanding of JCV pathogenesis in the CNS.
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Affiliation(s)
- Christian Wüthrich
- From the Division of Neuro-Immunology (CW, SB, IJK); Department of Neurology (CW, SB, MPA, IJK); Center for Virology and Vaccine Research, Department of Medicine(CW, SB, IJK); Department of Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts (MPA); and John a. Burns School of Medicine, University of Hawaii, Honolulu, and the Pacific Health Research and Education Institute, Honolulu, Hawaii (LRW)
| | - Stephanie Batson
- From the Division of Neuro-Immunology (CW, SB, IJK); Department of Neurology (CW, SB, MPA, IJK); Center for Virology and Vaccine Research, Department of Medicine(CW, SB, IJK); Department of Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts (MPA); and John a. Burns School of Medicine, University of Hawaii, Honolulu, and the Pacific Health Research and Education Institute, Honolulu, Hawaii (LRW)
| | - Matthew P Anderson
- From the Division of Neuro-Immunology (CW, SB, IJK); Department of Neurology (CW, SB, MPA, IJK); Center for Virology and Vaccine Research, Department of Medicine(CW, SB, IJK); Department of Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts (MPA); and John a. Burns School of Medicine, University of Hawaii, Honolulu, and the Pacific Health Research and Education Institute, Honolulu, Hawaii (LRW)
| | - Lon R White
- From the Division of Neuro-Immunology (CW, SB, IJK); Department of Neurology (CW, SB, MPA, IJK); Center for Virology and Vaccine Research, Department of Medicine(CW, SB, IJK); Department of Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts (MPA); and John a. Burns School of Medicine, University of Hawaii, Honolulu, and the Pacific Health Research and Education Institute, Honolulu, Hawaii (LRW)
| | - Igor J Koralnik
- From the Division of Neuro-Immunology (CW, SB, IJK); Department of Neurology (CW, SB, MPA, IJK); Center for Virology and Vaccine Research, Department of Medicine(CW, SB, IJK); Department of Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts (MPA); and John a. Burns School of Medicine, University of Hawaii, Honolulu, and the Pacific Health Research and Education Institute, Honolulu, Hawaii (LRW).
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Borchardt J, Berger JR. Re-evaluating the incidence of natalizumab-associated progressive multifocal leukoencephalopathy. Mult Scler Relat Disord 2016; 8:145-50. [PMID: 27456891 DOI: 10.1016/j.msard.2016.03.005] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2015] [Accepted: 03/14/2016] [Indexed: 11/16/2022]
Abstract
OBJECTIVE To estimate the prospective risk of developing PML during therapy with natalizumab in JCV-seropositive patients. METHODS We analyzed postmarketing data about the incidence of PML on natalizumab, and quantified the risk by either applying the Kaplan-Meier estimator or, where this was not possible due to the unavailability of the respective raw data, using formulae yielding very similar figures. RESULTS In JCV-seropositive patients with prior immunosuppressant (IS) use, the incidence of PML during months 25-48 of natalizumab therapy is about 19.5 per thousand. Without prior IS use, the incidence during months 25-48 is approximately 7.4 per thousand, and during months 49-72, it is approximately 10.8 per thousand. If one additionally assumes that the JCV index is in the range 0.9-1.5, then the incidence during months 49-72 is around 6.2 per thousand in comparison to 17.0 per thousand when the JCV index exceeds 1.5. CONCLUSIONS Biogen's statistics concerning the risk of PML on natalizumab, while in principle helpful, underestimate the true incidence systematically and significantly; realistic estimates of the longterm risk of PML are nearly double those previously published, with some patient groups carrying a risk that is almost nine times higher. Fortunately, a refined risk-stratification algorithm with the incorporation of such markers as L-selectin and CSF lipid-specific IgM bands has the potential to make natalizumab a considerably safer drug.
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Affiliation(s)
| | - Joseph R Berger
- The Department of Neurology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States
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17
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Abstract
The risk algorithm for natalizumab-associated PML was first established in 2012 using the observations that JC virus antibody status, prolonged duration of natalizumab therapy (>2 years), and prior exposure to immunosuppressive therapy increased the risk for the disease. Prior to the publication of Biogen's algorithm, a risk algorithm was created by Fox and Rudick using an Excel spreadsheet in order to address the concerns of their patients. Applying the most recently available data regarding natalizumab-associated PML, the risk assessments for PML were recalculated. The current numbers indicate substantially higher risks for PML in 2015 than in 2012. Our calculations suggest that an individual having all three risk factors has an approximately 1 in 44 chance of developing PML.
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Affiliation(s)
- Joseph R Berger
- Multiple Sclerosis Division of the Department of Neurology, University of Pennsylvania, 3400 Spruce St., 3 W Gates, Philadelphia, PA, 19104, USA. .,Mellen Center for Multiple Sclerosis Treatment and Research, Neurological Institute, Cleveland Clinic, Cleveland, OH, USA.
| | - Robert J Fox
- Multiple Sclerosis Division of the Department of Neurology, University of Pennsylvania, 3400 Spruce St., 3 W Gates, Philadelphia, PA, 19104, USA.,Mellen Center for Multiple Sclerosis Treatment and Research, Neurological Institute, Cleveland Clinic, Cleveland, OH, USA
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Diotti RA, Mancini N, Clementi N, Sautto G, Moreno GJ, Criscuolo E, Cappelletti F, Man P, Forest E, Remy L, Giannecchini S, Clementi M, Burioni R. Cloning of the first human anti-JCPyV/VP1 neutralizing monoclonal antibody: epitope definition and implications in risk stratification of patients under natalizumab therapy. Antiviral Res 2014; 108:94-103. [PMID: 24909571 DOI: 10.1016/j.antiviral.2014.05.017] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2014] [Revised: 05/05/2014] [Accepted: 05/06/2014] [Indexed: 12/16/2022]
Abstract
JC virus (JCPyV) has gained novel clinical importance as cause of progressive multifocal leukoencephalopathy (PML), a rare demyelinating disease recently associated to immunomodulatory drugs, such as natalizumab used in multiple sclerosis (MS) cases. Little is known about the mechanisms leading to PML, and this makes the need of PML risk stratification among natalizumab-treated patients very compelling. Clinical and laboratory-based risk-stratification markers have been proposed, one of these is represented by the JCPyV-seropositive status, which includes about 54% of MS patients. We recently proposed to investigate the possible protective role of neutralizing humoral immune response in preventing JCPyV reactivation. In this proof-of-concept study, by cloning the first human monoclonal antibody (GRE1) directed against a neutralizing epitope on JCPyV/VP1, we optimized a robust anti-JCPyV neutralization assay. This allowed us to evaluate the neutralizing activity in JCPyV-positive sera from MS patients, demonstrating the lack of correlation between the level of anti-JCPyV antibody and anti-JCPyV neutralizing activity. Relevant consequences may derive from future clinical studies induced by these findings; indeed the study of the serum anti-JCPyV neutralizing activity could allow not only a better risk stratification of the patients during natalizumab treatment, but also a better understanding of the pathophysiological mechanisms leading to PML, highlighting the contribution of peripheral versus central nervous system JCPyV reactivation. Noteworthy, the availability of GRE1 could allow the design of novel immunoprophylactic strategies during the immunomodulatory treatment.
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Affiliation(s)
- Roberta Antonia Diotti
- Laboratorio di Microbiologia e Virologia, Università "Vita-Salute" San Raffaele, Milan, Italy
| | - Nicasio Mancini
- Laboratorio di Microbiologia e Virologia, Università "Vita-Salute" San Raffaele, Milan, Italy.
| | - Nicola Clementi
- Laboratorio di Microbiologia e Virologia, Università "Vita-Salute" San Raffaele, Milan, Italy
| | - Giuseppe Sautto
- Laboratorio di Microbiologia e Virologia, Università "Vita-Salute" San Raffaele, Milan, Italy
| | - Guisella Janett Moreno
- Laboratorio di Microbiologia e Virologia, Università "Vita-Salute" San Raffaele, Milan, Italy
| | - Elena Criscuolo
- Laboratorio di Microbiologia e Virologia, Università "Vita-Salute" San Raffaele, Milan, Italy
| | - Francesca Cappelletti
- Laboratorio di Microbiologia e Virologia, Università "Vita-Salute" San Raffaele, Milan, Italy
| | - Petr Man
- Institute of Microbiology, Academy of Sciences of the Czech Republic, Prague, Czech Republic; Department of Biochemistry, Faculty of Sciences, Charles University, Prague, Czech Republic
| | - Eric Forest
- Institut de Biologie Structurale, CEA, CNRS, UJF, Grenoble, France
| | - Louise Remy
- Institut de Biologie Structurale, CEA, CNRS, UJF, Grenoble, France
| | - Simone Giannecchini
- Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
| | - Massimo Clementi
- Laboratorio di Microbiologia e Virologia, Università "Vita-Salute" San Raffaele, Milan, Italy
| | - Roberto Burioni
- Laboratorio di Microbiologia e Virologia, Università "Vita-Salute" San Raffaele, Milan, Italy.
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