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Mari JF, de Miranda ÉJFP, Mendes-Correa MC, Chow FC, Vidal JE. Progressive multifocal leukoencephalopathy and spectrum of predisposing conditions: a 20-year retrospective cohort study in a tertiary center in São Paulo, Brazil. Neurol Sci 2024:10.1007/s10072-024-07669-4. [PMID: 39007964 DOI: 10.1007/s10072-024-07669-4] [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: 05/24/2024] [Accepted: 06/20/2024] [Indexed: 07/16/2024]
Abstract
BACKGROUND Epidemiological studies on predisposing conditions and outcomes of progressive multifocal leukoencephalopathy (PML) cases have been carried out exclusively in high-income countries. We aim to report and compare the main characteristics and outcomes of patients with PML and several underlying diseases in a referral center in a middle-income country. METHODS We performed a retrospective cohort study of PML cases admitted to a tertiary care hospital in São Paulo, Brazil during 2000-2022. Demographic and PML-specific variables were recorded. One-year case-fatality rate and factors associated with death were identified using a multivariate Cox proportional hazards regression model. RESULTS Ninety-nine patients with PML were included. HIV infection (84.8%) and malignancy (14.1%) were the most prevalent underlying conditions. Other predisposing diseases were autoimmune/inflammatory diseases (5.1%) and solid organ transplantation (1.0%). One (1.0%) patient had liver cirrhosis and another (1.0%) patient was previously healthy. Focal motor deficits (64.2%) and gait instability (55.1%) were the most common signs. The one-year case-fatality rate was 52.5% (95% CI 42.2-62.7). The one-year case-fatality rate (95% CI) in patients with or without malignancy (85.7%, 95% CI 57.2-98.2% and 47.1%, 95% CI 36.1-58.2%, respectively) were statistically different (P = 0.009). Crude and adjusted Cox regression models identified malignancy as independently associated with death (adjusted HR = 3.92, 95% CI 1.76-8.73, P = 0.001). CONCLUSIONS HIV/AIDS was the predisposing condition in 84.8% of PML cases. The one-year case-fatality rate was 52.5% and having a malignancy was independently associated with death. This study reports emerging data on the epidemiology and outcome of PML in a middle-income country.
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Affiliation(s)
- Julia Ferreira Mari
- Departamento de Moléstias Infecciosas e Parasitárias, Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | | | - Maria Cassia Mendes-Correa
- Laboratório de Investigação Médica (LIM 52) do Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - Felicia C Chow
- Weill Institute for Neurosciences, Department of Neurology, University of California, San Francisco, CA, USA
- Department of Medicine (Infectious Diseases), University of California, San Francisco, CA, USA
| | - José Ernesto Vidal
- Departamento de Moléstias Infecciosas e Parasitárias, Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil.
- Departamento de Neurologia, Instituto de Infectologia Emílio Ribas, São Paulo, Brazil.
- Laboratório de Investigação Médica (LIM 49) do Hospital das Clínicas da Faculdade de Medicina da, Universidade de São Paulo, São Paulo, Brazil.
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Amirifard H, Shahbazi M, Farahmand G, Ranjbar Z, Kaeedi M, Heydari Havadaragh S. Progressive multifocal leukoencephalopathy in a patient with B-cell chronic lymphocytic leukemia after COVID-19 vaccination, complicated with COVID-19 and mucormycosis: a case report. BMC Neurol 2024; 24:151. [PMID: 38704555 PMCID: PMC11069241 DOI: 10.1186/s12883-024-03650-y] [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: 02/12/2023] [Accepted: 04/23/2024] [Indexed: 05/06/2024] Open
Abstract
BACKGROUND Progressive multifocal leukoencephalopathy (PML) is a rare and fatal opportunistic viral demyelinating infectious disease of the central nervous system (CNS). There are various clinical presenting symptoms for the disease. CASE PRESENTATION This paper presents a clinical case of PML in a patient with B-Chronic lymphocytic leukemia (B-CLL), previously treated with Chlorambucil, later complicated later with COVID-19 and mucormycosis. CONCLUSION PML can develop in the setting of cellular immune dysfunction. Late diagnosis of this disease based on nonspecific symptoms is common, therefore when we face a neurological complication in a CLL or immunocompromised patient, we should consider PML infection. A remarkable feature of this case is the possible triggering effect of COVID-19 vaccination for emergence of PML as the disease can be asymptomatic or sub-clinical before diagnosis.
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Affiliation(s)
- Hamed Amirifard
- Iranian Center of Neurological Research, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran
- Neurology, Iranian Center of Neurological Research, Tehran University of medical sciences, Imam Khomeini Hospital Complex, Tehran, Iran
| | - Mojtaba Shahbazi
- Iranian Center of Neurological Research, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran
- Neurology, Iranian Center of Neurological Research, Tehran University of medical sciences, Imam Khomeini Hospital Complex, Tehran, Iran
| | - Ghasem Farahmand
- Iranian Center of Neurological Research, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Zahra Ranjbar
- Iranian Center of Neurological Research, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran
- Neurology, Iranian Center of Neurological Research, Tehran University of medical sciences, Imam Khomeini Hospital Complex, Tehran, Iran
| | - Maryam Kaeedi
- Iranian Center of Neurological Research, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran
- Neurology, Iranian Center of Neurological Research, Tehran University of medical sciences, Imam Khomeini Hospital Complex, Tehran, Iran
| | - Sanaz Heydari Havadaragh
- Iranian Center of Neurological Research, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran.
- Neurology, Iranian Center of Neurological Research, Tehran University of medical sciences, Imam Khomeini Hospital Complex, Tehran, Iran.
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Aiba M, Okada K, Funakoshi T, Nozu R, Takahashi T, Ozu S, Hidaka D, Ogasawara R, Sugita J, Ogasawara M, Kobayashi N, Imamura M, Shizukawa H, Ota S. Development of progressive multifocal leukoencephalopathy after cord blood transplantation in a patient with refractory angioimmunoblastic T-cell lymphoma. J Infect Chemother 2024:S1341-321X(24)00066-7. [PMID: 38423299 DOI: 10.1016/j.jiac.2024.02.025] [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: 01/06/2024] [Revised: 02/19/2024] [Accepted: 02/26/2024] [Indexed: 03/02/2024]
Abstract
A patient undergoing cord blood transplantation for refractory angioimmunoblastic T-cell lymphoma was subsequently managed with long-term immunosuppressants for chronic graft-versus-host disease (GVHD). On day 591 post-transplant, she exhibited disorientation and cognitive dysfunction. Magnetic resonance imaging (MRI) of the brain revealed two hyperintense foci in the white matter, suggestive of progressive multifocal leukoencephalopathy (PML). However, we did not include PML in the differential diagnosis at that time. Unfortunately, she developed progressive cognitive impairment, and repeated brain MRIs showed a progression in lesion size. She was still taking immunosuppressants to control her GVHD, therefore we suspected PML. The diagnosis of PML was confirmed through the detection of a John Cunningham (JC) virus in the cerebrospinal fluid on day 640 post-transplant. This report highlights the critical need to consider PML in differential diagnoses for post-allogeneic transplant patients, especially those who exhibit progressive neurological symptoms while on prolonged immunosuppressant therapy.
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Affiliation(s)
- Masayuki Aiba
- Department of Hematology, Sapporo Hokuyu Hospital, Sapporo, Japan.
| | - Kohei Okada
- Department of Hematology, Sapporo Hokuyu Hospital, Sapporo, Japan
| | | | - Rintaro Nozu
- Department of Hematology, Sapporo Hokuyu Hospital, Sapporo, Japan
| | - Tomoki Takahashi
- Department of Hematology, Sapporo Hokuyu Hospital, Sapporo, Japan
| | - Shunsuke Ozu
- Department of Hematology, Sapporo Hokuyu Hospital, Sapporo, Japan
| | - Daisuke Hidaka
- Department of Hematology, Sapporo Hokuyu Hospital, Sapporo, Japan
| | - Reiki Ogasawara
- Department of Hematology, Sapporo Hokuyu Hospital, Sapporo, Japan
| | - Junichi Sugita
- Department of Hematology, Sapporo Hokuyu Hospital, Sapporo, Japan
| | | | - Naoki Kobayashi
- Department of Hematology, Sapporo Hokuyu Hospital, Sapporo, Japan
| | - Masahiro Imamura
- Department of Hematology, Sapporo Hokuyu Hospital, Sapporo, Japan
| | | | - Shuichi Ota
- Department of Hematology, Sapporo Hokuyu Hospital, Sapporo, Japan
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Sakurai S, Maezawa M, Nakao S, Hirofuji S, Miyasaka K, Yamashita M, Matsui K, Nishida S, Kobayashi R, Iguchi K, Hayashi Y, Suzuki A, Nakamura M. Progressive multifocal leukoencephalopathy analyzed using the Japanese Adverse Drug Event Report database. J Neurol Sci 2023; 455:122789. [PMID: 37984106 DOI: 10.1016/j.jns.2023.122789] [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: 07/10/2023] [Revised: 11/07/2023] [Accepted: 11/09/2023] [Indexed: 11/22/2023]
Abstract
BACKGROUND Progressive multifocal leukoencephalopathy (PML) has been reported as the development of drugs with immunomodulatory properties, such as anticancer, immunosuppressive, and biological agents, has accelerated. To clarify an incidence profile of drug-associated PML in real-world clinical practice, we analyzed reported patients with PML using the Japanese Adverse Drug Event Report (JADER) database. METHODS We analyzed PML reports extracted from the JADER database based on the preferred term of "progressive multifocal leukoencephalopathy" from between 2004 and 2021. This was a retrospective, observational study. We evaluated the effects of causative drugs, underlying diseases, and the age of the patients on the annual number of PML reports. RESULTS The JADER database contained 773,966 reports published between April 2004 and March 2022, from which we identified 361 PML events. These PML events may include multiple counts of the same case reported by different pathways and patients diagnosed with probable or possible PML. The number of PML reports and reporting ratios have gradually increased over the past decade. The annual number of PML reports associated with biologics, immunosuppressants, and antineoplastic drugs showed an increasing trend. Females aged ≥30 years showed an increase in PML reports; in contrast, there the number of reports for males aged ≥50 years increased. CONCLUSIONS The number of PML reports and reporting ratios have gradually increased in the past decade in Japan, and it considered that it was related to change in the treatment of malignancies and autoimmune diseases, and the increasing use of biologics, immunosuppressive agents, and antineoplastic agents.
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Affiliation(s)
- Shuji Sakurai
- Department of Pharmacy, Gifu University Hospital, Gifu, Japan
| | - Mika Maezawa
- Laboratory of Drug Informatics, Gifu Pharmaceutical University, Gifu, Japan
| | - Satoshi Nakao
- Laboratory of Drug Informatics, Gifu Pharmaceutical University, Gifu, Japan
| | - Sakiko Hirofuji
- Laboratory of Drug Informatics, Gifu Pharmaceutical University, Gifu, Japan
| | - Koumi Miyasaka
- Laboratory of Drug Informatics, Gifu Pharmaceutical University, Gifu, Japan
| | - Moe Yamashita
- Laboratory of Drug Informatics, Gifu Pharmaceutical University, Gifu, Japan
| | - Kensuke Matsui
- Laboratory of Drug Informatics, Gifu Pharmaceutical University, Gifu, Japan
| | - Shohei Nishida
- Department of Pharmacy, Gifu University Hospital, Gifu, Japan
| | - Ryo Kobayashi
- Department of Pharmacy, Gifu University Hospital, Gifu, Japan; Laboratory of Advanced Medical Pharmacy, Gifu Pharmaceutical University, Gifu, Japan
| | - Kazuhiro Iguchi
- Laboratory of Community Pharmacy, Gifu Pharmaceutical University, Gifu, Japan
| | - Yuichi Hayashi
- Department of Pharmacy, Gifu University Hospital, Gifu, Japan; Faculty of Nursing Science, Tsuruga Nursing University, Fukui, Japan
| | - Akio Suzuki
- Department of Pharmacy, Gifu University Hospital, Gifu, Japan; Laboratory of Advanced Medical Pharmacy, Gifu Pharmaceutical University, Gifu, Japan
| | - Mitsuhiro Nakamura
- Laboratory of Drug Informatics, Gifu Pharmaceutical University, Gifu, Japan.
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Jiang R, Song Z, Liu L, Mei X, Sun J, Qi T, Wang Z, Song W, Tang Y, Yang J, Xu S, Zhao B, Shen Y, Zhang R, Chen J. Survival and prognostic factors of progressive multifocal leukoencephalopathy in people living with HIV in modern ART era. Front Cell Infect Microbiol 2023; 13:1208155. [PMID: 38029233 PMCID: PMC10663249 DOI: 10.3389/fcimb.2023.1208155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Accepted: 10/24/2023] [Indexed: 12/01/2023] Open
Abstract
Background The incidence of progressive multifocal leukoencephalopathy (PML) in people living with HIV (PLWH) is 2%-4%. Currently, there is no effective therapeutic strategy for the treatment of PML in PLWH, resulting in a mortality of up to 50%. This study aimed to identify risk factors of death and prognostic markers in people living with HIV with PML. Methods A retrospective cohort study of AIDS-related PML individuals was conducted from January 1, 2015, to October 1, 2022, in Shanghai, China. PLWH who were diagnosed with PML for the first time were included. Kaplan-Meier curve and Cox regression were used to analyze the survival and its predictors. Levels of inflammatory markers and immune checkpoint inhibitors in blood and cerebrospinal fluid (CSF) were measured in the prestored samples using bead-based multiplex assay Indolamine 2,3-dioxygenase was determined using ELISA. Results Twenty of 71 subjects had initiated antiretroviral therapy (ART) before PML onset and no patients discontinued ART during this period. In total, 34 patients (47.9%) had opportunistic infections (OIs), the median CD4+ T cell count was 73.0 (33.0-149.0) cells/μL. The estimated probability of survival at six months was 78% (95% confidential intervals [CIs]:0.63-0.85). OIs, low CD4+ T cell count were associated with lower estimated six-month survival (hazard ratio 8.01, 95% CIs: 1.80-35.00, P=0.006 and 5.01, 95% CIs:1.57-16.03, p=0.007). Indolamine 2,3-dioxygenase activity in CSF of non-survivors group were higher than survivors group (p<0.05). Conclusions The survival rate of AIDS-related PML in the modern ART era was higher than the survival rate a decade ago. Low CD4+T cell count, OIs, were all associated with death of individuals with AIDS-related PML. The role of IDO in AIDS-related PML warrant further investigation.
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Affiliation(s)
- Rui Jiang
- Department of Infection and Immunology, Shanghai Public Health Clinical Center, Fudan University, Shanghai, China
| | - Zichen Song
- Scientifc Research Center, Shanghai Public Health Clinical Center, Fudan University, Shanghai, China
| | - Li Liu
- Department of Infection and Immunology, Shanghai Public Health Clinical Center, Fudan University, Shanghai, China
| | - Xue Mei
- Department of Liver Intensive Care Unit, Shanghai Public Health Clinical Center, Fudan University, Shanghai, China
| | - Jianjun Sun
- Department of Infection and Immunology, Shanghai Public Health Clinical Center, Fudan University, Shanghai, China
| | - Tangkai Qi
- Department of Infection and Immunology, Shanghai Public Health Clinical Center, Fudan University, Shanghai, China
| | - Zhenyan Wang
- Department of Infection and Immunology, Shanghai Public Health Clinical Center, Fudan University, Shanghai, China
| | - Wei Song
- Department of Infection and Immunology, Shanghai Public Health Clinical Center, Fudan University, Shanghai, China
| | - Yang Tang
- Department of Infection and Immunology, Shanghai Public Health Clinical Center, Fudan University, Shanghai, China
| | - Junyang Yang
- Department of Infection and Immunology, Shanghai Public Health Clinical Center, Fudan University, Shanghai, China
| | - Shuibao Xu
- Department of Infection and Immunology, Shanghai Public Health Clinical Center, Fudan University, Shanghai, China
| | - Bihe Zhao
- Department of Infection and Immunology, Shanghai Public Health Clinical Center, Fudan University, Shanghai, China
| | - Yinzhong Shen
- Department of Infection and Immunology, Shanghai Public Health Clinical Center, Fudan University, Shanghai, China
| | - Renfang Zhang
- Department of Infection and Immunology, Shanghai Public Health Clinical Center, Fudan University, Shanghai, China
| | - Jun Chen
- Department of Infection and Immunology, Shanghai Public Health Clinical Center, Fudan University, Shanghai, China
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Otaka H, Imai S, Fushimi K. Epidemiology of progressive multifocal leukoencephalopathy in Japan and effectiveness of mefloquine: A retrospective analysis of a nationwide inpatient database. J Neurol Sci 2023; 453:120774. [PMID: 37651882 DOI: 10.1016/j.jns.2023.120774] [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: 05/21/2023] [Revised: 08/21/2023] [Accepted: 08/24/2023] [Indexed: 09/02/2023]
Abstract
INTRODUCTION Progressive multifocal leukoencephalopathy (PML) is an infrequent yet devastating neurological infection that arises in immunocompromised patients. The epidemiological features of PML in Japan and its evolution in recent years remain unclear. There are no established treatments that directly target PML. Although mefloquine has shown in vitro activity against JC virus, its clinical effectiveness has not been confirmed in population-level studies. METHODS We retrospectively analyzed the admission data of patients with PML recorded in the Diagnosis Procedure Combination (DPC) database from fiscal year 2010 to 2020 (11 years). Descriptive statistics were used to illustrate the epidemiological features. Changes in the frequency of PML admission, underlying diseases, and in-hospital mortality over time were also examined. Furthermore, we evaluated the effectiveness of mefloquine in improving activities of daily living at discharge using propensity score matching. RESULTS We identified 610 PML cases diagnosed by the treating physicians, which may include possible PML. Among them, 419 were first-time admissions. The median age at admission was 62.0 years, and 62.8% were men. HIV was the most common underlying condition, accounting for 22.9% of cases, followed by hematologic malignancies (18.4%), and autoimmune diseases (17.9%). Over the study period, the frequency of PML admissions showed an increasing trend, whereas the in-hospital mortality rate showed a decreasing trend. The effectiveness of mefloquine was not confirmed. CONCLUSIONS The results of this study will help clarify and update the clinical picture of PML in Japan. The DPC database was shown to be useful tool for epidemiological research on rare infectious disease such as PML.
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Affiliation(s)
- Hiromichi Otaka
- Department of Health Policy and Informatics, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8510, Japan
| | - Shinobu Imai
- Department of Health Policy and Informatics, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8510, Japan; Department of Clinical Data Management and Research, Clinical Research Center, National Hospital Organization Headquarters, 2-5-21 Higashigaoka, Meguro-ku, Tokyo 152-8621, Japan; Department of Healthcare and Regulatory Sciences, School of Pharmacy, Showa University, 1-5-8 Hatanodai, Shinagawa-ku, Tokyo 142-8555, Japan
| | - Kiyohide Fushimi
- Department of Health Policy and Informatics, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8510, Japan; Department of Clinical Data Management and Research, Clinical Research Center, National Hospital Organization Headquarters, 2-5-21 Higashigaoka, Meguro-ku, Tokyo 152-8621, Japan.
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Rocchi A, Sariyer IK, Berger JR. Revisiting JC virus and progressive multifocal leukoencephalopathy. J Neurovirol 2023; 29:524-537. [PMID: 37659983 DOI: 10.1007/s13365-023-01164-w] [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: 05/04/2023] [Revised: 07/10/2023] [Accepted: 07/27/2023] [Indexed: 09/04/2023]
Abstract
Since its definition 65 years ago, progressive multifocal leukoencephalopathy (PML) has continued to devastate a growing population of immunosuppressed patients despite major advances in our understanding of the causative JC virus (JCV). Unless contained by the immune system, JCV lyses host oligodendrocytes collateral to its life cycle, leading to demyelination, neurodegeneration, and death. Novel treatments have stagnated in the absence of an animal model while current antiviral agents fail to address the now ubiquitous polyomavirus. In this review, we highlight the established pathogenesis by which JCV infection progresses to PML, highlighting major challenges that must be overcome to eliminate the underlying virus and, therefore, the debilitating disease.
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Affiliation(s)
- Angela Rocchi
- Department of Microbiology, Immunology and Inflammation, Center for Neurovirology and Gene Editing, Temple University Lewis Katz School of Medicine, Philadelphia, PA, 19140, USA
| | - Ilker K Sariyer
- Department of Microbiology, Immunology and Inflammation, Center for Neurovirology and Gene Editing, Temple University Lewis Katz School of Medicine, Philadelphia, PA, 19140, USA.
| | - Joseph R Berger
- Department of Neurology, Perelman School of Medicine, University of Pennsylvania, 3400 Convention Avenue, Philadelphia, PA, 19104, USA.
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Grant S, Skinner T, Turner D, Griggs G, Eve H. An atypical case of progressive multifocal leukoencephalopathy in a patient with high grade B-cell lymphoma causing diagnostic delay. JRSM Open 2023; 14:20542704231200395. [PMID: 37822464 PMCID: PMC10563469 DOI: 10.1177/20542704231200395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/13/2023] Open
Abstract
Progressive multifocal leukoencephalopathy (PML) is a rare disease of the central nervous system caused by opportunistic infection with JC virus. It presents in patients who are immunocompromised, and diagnosis is made by correlating clinical findings and radiological changes with the detection of JC virus in cerebrospinal fluid. Rarely, a brain biopsy is needed. A 72 year old with high grade B-cell lymphoma developed right arm weakness and limb ataxia shortly after his diagnosis. CNS involvement was excluded with a normal CT head, MRI brain/spine, and CSF examination. A paraneoplastic cause was suspected, and he received 5 cycles of Rituximab-containing chemotherapy to a complete metabolic remission. His neurology evolved during treatment despite serial MRI and CSF examination remaining normal. CSF and serum were both negative for JC virus by PCR. Following completion of chemotherapy, he deteriorated acutely with seizures and personality changes. It was only at this point that a repeat MRI showed new multiple scattered ring enhancing lesions within both cerebral hemispheres. The patient underwent a brain biopsy confirming JC virus positive-PML by immunohistochemistry and passed away one month later. This case illustrates the diagnostic challenges associated with PML and had several atypical features which led to diagnostic delay, specifically the onset of symptoms before starting immunochemotherapy, and the lack of radiological change despite evolving neurology. The eventual MRI abnormalities were not altogether classical for PML which, coupled with the JC-negativity in CSF and serum, meant a brain biopsy was required to reach the diagnosis.
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Affiliation(s)
- Sabrina Grant
- Haematology Department, Torbay and South Devon NHS Foundation Trust, Torquay, UK
| | - Thomas Skinner
- Haematology Department, Torbay and South Devon NHS Foundation Trust, Torquay, UK
| | - Deborah Turner
- Haematology Department, Torbay and South Devon NHS Foundation Trust, Torquay, UK
| | - Gareth Griggs
- Haematology Department, Torbay and South Devon NHS Foundation Trust, Torquay, UK
| | - Heather Eve
- Haematology Department, Torbay and South Devon NHS Foundation Trust, Torquay, UK
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Aye SL, Trivedi Y, Bolgarina Z, Desai HN, Senaratne M, Swami SS, Mohammed L. The Prognosis of Progressive Multifocal Leukoencephalopathy in HIV/AIDS Patients Undergoing Highly Active Antiretroviral Treatment: A Systematic Review. Cureus 2023; 15:e45155. [PMID: 37842471 PMCID: PMC10575567 DOI: 10.7759/cureus.45155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Accepted: 09/12/2023] [Indexed: 10/17/2023] Open
Abstract
Progressive multifocal leukoencephalopathy (PML), a viral infection of the central nervous system (CNS), is most commonly associated with advanced HIV infection. Although the severe neurological conditions - PML and progressive multifocal leukoencephalopathy immune reconstitution inflammatory syndrome (PML-IRIS) - are linked to HIV, little is known about their characteristics in the era of established antiretroviral therapy (ART). The aim of this systematic review, which was performed by adhering to Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) 2020 guidelines, was to determine the prognosis of PML in patients with HIV. We gathered and examined articles, including case-control and cohort studies, systematic reviews, and meta-analyses that were published between January 1, 2013, and May 2023. These articles were compiled from the following databases: Pubmed, Pubmed Central, Google Scholar, Wiley Library, and ScienceDirect. A total of 519 records were found from these databases for our systematic review after applying the proper filters. They were then further screened and put through quality appraisal tools, which ultimately led to the selection of 10 articles for the final analysis. This research offers crucial insights into the clinical consequences of PML in HIV patients receiving highly active antiretroviral therapy (HAART).
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Affiliation(s)
- Soe Lwin Aye
- Internal Medicine, California Institute of Behavioral Neurosciences & Psychology, Fairfield, USA
| | - Yash Trivedi
- Internal Medicine, California Institute of Behavioral Neurosciences & Psychology, Fairfield, USA
| | - Zoryana Bolgarina
- Obstetrics and Gynecology, California Institute of Behavioral Neurosciences & Psychology, Fairfield, USA
| | - Heet N Desai
- Internal Medicine, California Institute of Behavioral Neurosciences & Psychology, Fairfield, USA
| | - Mithum Senaratne
- Internal Medicine, California Institute of Behavioral Neurosciences & Psychology, Fairfield, USA
| | - Shivling S Swami
- Internal Medicine, California Institute of Behavioral Neurosciences & Psychology, Fairfield, USA
| | - Lubna Mohammed
- Internal Medicine, California Institute of Behavioral Neurosciences & Psychology, Fairfield, USA
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10
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Ostolaza A, Gastón I, Marta J, Ormazabal I, Erro ME. Progressive multifocal leukoencephalopathy: Report of a case preceding the diagnosis of systemic lymphoma. Neurologia 2023; 38:511-513. [PMID: 36162701 DOI: 10.1016/j.nrleng.2022.07.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Accepted: 07/15/2022] [Indexed: 10/14/2022] Open
Affiliation(s)
- A Ostolaza
- Servicio de Neurología, Complejo Hospitalario de Navarra, Pamplona, Spain.
| | - I Gastón
- Servicio de Neurología, Complejo Hospitalario de Navarra, Pamplona, Spain
| | - J Marta
- Servicio de Neurología, Complejo Hospitalario de Navarra, Pamplona, Spain
| | - I Ormazabal
- Servicio de Hematología, Complejo Hospitalario de Navarra, Pamplona, Spain
| | - M E Erro
- Servicio de Neurología, Complejo Hospitalario de Navarra, Pamplona, Spain; Laboratorio de Neuroepigenética-Navarrabiomed, Universidad Pública de Navarra (UPNA), IdiSNA (Navarra Institute for Health Research), Pamplona, Spain
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11
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Kim J, Kim C, Lee JA, Lee SJ, Lee KH, Kim JH, Ahn JY, Jeong SJ, Ku NS, Choi JY, Yeom JS, Song YG. Long-term prognosis and overall mortality in patients with progressive multifocal leukoencephalopathy. Sci Rep 2023; 13:14291. [PMID: 37652945 PMCID: PMC10471597 DOI: 10.1038/s41598-023-41147-9] [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: 02/12/2023] [Accepted: 08/22/2023] [Indexed: 09/02/2023] Open
Abstract
Progressive multifocal leukoencephalopathy (PML) is a rare but fatal opportunistic infection and mainly occurs in patients with immunosuppressive conditions. Despite the increasing number of patients receiving immunosuppressive treatments, studies on PML are still lacking due to its low prevalence and incidence. We retrospectively reviewed patients diagnosed with PML in two tertiary hospitals in South Korea from 1999 to 2021. Total of 47 PML patients were included. Of 27 patients (57.4%) were diagnosed with human immunodeficiency virus (HIV). Median last follow-up modified Rankin Scale (mRS) score was higher in the non-HIV PML group than that in the HIV group (5 vs. 4, p = 0.020). Median survival duration was lower in the non-HIV group (184 vs. 1,564 days). The 1-year and overall mortality rates of PML patients were significantly higher in the non-HIV group than that in HIV group (60.0% vs. 25.9%, p = 0.019; 80.0% vs. 40.7%, p = 0.007). Initial mRS score (HR 1.685, p = 0.038) and highly active antiretroviral therapy (HAART) in HIV patients (HR 0.374, p = 0.013) had a significant effect on overall mortality. Our findings suggest that early detection of PML with low mRS score and early initiation of HAART in patients with HIV may improve prognosis.
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Affiliation(s)
- Jinnam Kim
- Division of Infectious Diseases, Department of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, 50-1 Yonsei-Ro, Seodaemun-Gu, Seoul, 03722, Korea
- AIDS Research Institute, Yonsei University College of Medicine, Seoul, Korea
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - Changhyup Kim
- Division of Infectious Diseases, Department of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, 50-1 Yonsei-Ro, Seodaemun-Gu, Seoul, 03722, Korea
- AIDS Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Jung Ah Lee
- Division of Infectious Diseases, Department of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, 50-1 Yonsei-Ro, Seodaemun-Gu, Seoul, 03722, Korea
- AIDS Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Se Ju Lee
- Division of Infectious Diseases, Department of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, 50-1 Yonsei-Ro, Seodaemun-Gu, Seoul, 03722, Korea
- AIDS Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Ki Hyun Lee
- Division of Infectious Diseases, Department of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, 50-1 Yonsei-Ro, Seodaemun-Gu, Seoul, 03722, Korea
- AIDS Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Jung Ho Kim
- Division of Infectious Diseases, Department of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, 50-1 Yonsei-Ro, Seodaemun-Gu, Seoul, 03722, Korea.
- AIDS Research Institute, Yonsei University College of Medicine, Seoul, Korea.
| | - Jin Young Ahn
- Division of Infectious Diseases, Department of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, 50-1 Yonsei-Ro, Seodaemun-Gu, Seoul, 03722, Korea
- AIDS Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Su Jin Jeong
- Division of Infectious Diseases, Department of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, 50-1 Yonsei-Ro, Seodaemun-Gu, Seoul, 03722, Korea
- AIDS Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Nam Su Ku
- Division of Infectious Diseases, Department of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, 50-1 Yonsei-Ro, Seodaemun-Gu, Seoul, 03722, Korea
- AIDS Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Jun Yong Choi
- Division of Infectious Diseases, Department of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, 50-1 Yonsei-Ro, Seodaemun-Gu, Seoul, 03722, Korea
- AIDS Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Joon-Sup Yeom
- Division of Infectious Diseases, Department of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, 50-1 Yonsei-Ro, Seodaemun-Gu, Seoul, 03722, Korea
- AIDS Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Young Goo Song
- Division of Infectious Diseases, Department of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, 50-1 Yonsei-Ro, Seodaemun-Gu, Seoul, 03722, Korea
- AIDS Research Institute, Yonsei University College of Medicine, Seoul, Korea
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12
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Lei T, Deng A, Li L, Wang M, Wu D, Zhou T. Progressive multifocal leukoencephalopathy in an HIV patient: A case report and literature review. Clin Case Rep 2023; 11:e7784. [PMID: 37564607 PMCID: PMC10410124 DOI: 10.1002/ccr3.7784] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Revised: 06/10/2023] [Accepted: 06/30/2023] [Indexed: 08/12/2023] Open
Abstract
Key Clinical Message Progressive multifocal leukoencephalopathy (PML) is a rare opportunistic infection of the brain caused by reactivation of the JC virus, which can lead to a lytic infection of oligodendrocytes. We report a patient with HIV who developed PML. Abstract Progressive multifocal leukoencephalopathy (PML) is a rare opportunistic infection of the brain caused by reactivation of the John Cunningham virus (JCV), which can lead to a lytic infection of oligodendrocytes. Herein, we report the case of a patient with HIV who developed PML that presented as a progressive disturbance of consciousness and movement. The patient's clinical symptoms progressively deteriorated, and positive JC viral DNA in his cerebrospinal fluid (CSF) helped us diagnose him with PML. Magnetic resonance imaging (MRI) showed multiple asymmetric subcortical and deep white-matter lesions. Although we administered immunoreconstructive therapy, the patient's condition gradually worsened. Therefore, we suggest that PML should be considered if such lesions are found in MRIs of HIV patients.
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Affiliation(s)
- Ting Lei
- Center of Infectious Diseases, West China HospitalSichuan UniversityChengduChina
| | - Ai Deng
- Center of Infectious Diseases, West China HospitalSichuan UniversityChengduChina
| | - Lianchi Li
- Department of Critical Care Medicine, West China HospitalSichuan UniversityChengduChina
| | - Ming Wang
- Center of Infectious Diseases, West China HospitalSichuan UniversityChengduChina
| | - Dongbo Wu
- Center of Infectious Diseases, West China HospitalSichuan UniversityChengduChina
| | - Taoyou Zhou
- Center of Infectious Diseases, West China HospitalSichuan UniversityChengduChina
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13
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McEntire CRS, Fletcher A, Toledano M, Epstein S, White E, Tan CS, Mao-Draayer Y, Banks SA, Aksamit AJ, Gelfand JM, Thakur KT, Anand P, Cortese I, Bhattacharyya S. Characteristics of Progressive Multifocal Leukoencephalopathy Associated With Sarcoidosis Without Therapeutic Immune Suppression. JAMA Neurol 2023; 80:624-633. [PMID: 37093609 PMCID: PMC10126944 DOI: 10.1001/jamaneurol.2023.0841] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Accepted: 02/17/2023] [Indexed: 04/25/2023]
Abstract
Importance Progressive multifocal leukoencephalopathy can occur in the context of systemic sarcoidosis (S-PML) in the absence of therapeutic immune suppression and can initially be mistaken for neurosarcoidosis or other complications of sarcoidosis. Earlier recognition of S-PML could lead to more effective treatment of the disease. Objective To describe characteristics of patients with S-PML. Design, Setting, and Participants For this case series, records from 8 academic medical centers in the United States were reviewed from 2004 to 2022. A systematic review of literature from 1955 to 2022 yielded data for additional patients. Included were patients with S-PML who were not receiving therapeutic immune suppression. The median follow-up time for patients who survived the acute range of illness was 19 months (range, 2-99). Data were analyzed in February 2023. Exposures Sarcoidosis without active therapeutic immune suppression. Main Outcomes and Measures Clinical, laboratory, and radiographic features of patients with S-PML. Results Twenty-one patients with S-PML not receiving therapeutic immune suppression were included in this study, and data for 37 patients were collected from literature review. The median age of the 21 study patients was 56 years (range, 33-72), 4 patients (19%) were female, and 17 (81%) were male. The median age of the literature review patients was 49 years (range, 21-74); 12 of 34 patients (33%) with reported sex were female, and 22 (67%) were male. Nine of 21 study patients (43%) and 18 of 31 literature review patients (58%) had simultaneous presentation of systemic sarcoidosis and PML. Six of 14 study patients (43%) and 11 of 19 literature review patients (58%) had a CD4+ T-cell count greater than 200/μL. In 2 study patients, a systemic flare of sarcoidosis closely preceded S-PML development. Ten of 17 study patients (59%) and 21 of 35 literature review patients (60%) died during the acute phase of illness. No meaningful predictive differences were found between patients who survived S-PML and those who did not. Conclusions and Relevance In this case series, patients with sarcoidosis developed PML in the absence of therapeutic immune suppression, and peripheral blood proxies of immune function were often only mildly abnormal. Systemic sarcoidosis flares may rarely herald the onset of S-PML. Clinicians should consider PML in any patient with sarcoidosis and new white matter lesions on brain magnetic resonance imaging.
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Affiliation(s)
| | - Anita Fletcher
- Neuroimmunology Clinic, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, Maryland
| | - Michel Toledano
- Department of Neurology, Mayo Clinic Rochester, Rochester, Minnesota
| | - Samantha Epstein
- Department of Neurology, Yale University School of Medicine, New Haven, Connecticut
| | - Emily White
- Department of Neurology, Boston Medical Center, Boston, Massachusetts
| | - C. Sabrina Tan
- Division of Infectious Diseases, Center for Virology and Vaccines Research, Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts
- Division of Infectious Diseases, Department of Medicine, University of Iowa, Iowa City
| | | | - Samantha A. Banks
- Department of Neurology, Mayo Clinic Rochester, Rochester, Minnesota
| | - Allen J. Aksamit
- Department of Neurology, Mayo Clinic Rochester, Rochester, Minnesota
| | | | - Kiran T. Thakur
- Department of Neurology, Columbia University Irving Medical Center–New York Presbyterian Hospital, New York
| | - Pria Anand
- Department of Neurology, Boston Medical Center, Boston, Massachusetts
| | - Irene Cortese
- Experimental Immunotherapeutics Unit, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, Maryland
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14
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Nakamichi K, Miura Y, Shimokawa T, Takahashi K, Suzuki T, Funata N, Harada M, Mori K, Sanjo N, Yukitake M, Takahashi K, Hamaguchi T, Izaki S, Oji S, Nakahara J, Ae R, Kosami K, Nukuzuma S, Nakamura Y, Nomura K, Kishida S, Mizusawa H, Yamada M, Takao M, Ebihara H, Saijo M. Nationwide Laboratory Surveillance of Progressive Multifocal Leukoencephalopathy in Japan: Fiscal Years 2011-2020. Viruses 2023; 15:v15040968. [PMID: 37112948 PMCID: PMC10144269 DOI: 10.3390/v15040968] [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: 03/23/2023] [Revised: 04/11/2023] [Accepted: 04/12/2023] [Indexed: 04/29/2023] Open
Abstract
Progressive multifocal leukoencephalopathy (PML) is a devastating demyelinating disease caused by JC virus (JCV), predominantly affecting patients with impaired cellular immunity. PML is a non-reportable disease with a few exceptions, making national surveillance difficult. In Japan, polymerase chain reaction (PCR) testing for JCV in the cerebrospinal fluid (CSF) is performed at the National Institute of Infectious Diseases to support PML diagnosis. To clarify the overall profile of PML in Japan, patient data provided at the time of CSF-JCV testing over 10 years (FY2011-2020) were analyzed. PCR testing for 1537 new suspected PML cases was conducted, and 288 (18.7%) patients tested positive for CSF-JCV. An analysis of the clinical information on all individuals tested revealed characteristics of PML cases, including the geographic distribution, age and sex patterns, and CSF-JCV-positivity rates among the study subjects for each type of underlying condition. During the last five years of the study period, a surveillance system utilizing ultrasensitive PCR testing and widespread clinical attention to PML led to the detection of CSF-JCV in the earlier stages of the disease. The results of this study will provide valuable information not only for PML diagnosis, but also for the treatment of PML-predisposing conditions.
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Affiliation(s)
- Kazuo Nakamichi
- Department of Virology 1, National Institute of Infectious Diseases, Shinjuku-ku, Tokyo 162-8640, Japan
| | - Yoshiharu Miura
- Department of Neurology, Tokyo Metropolitan Cancer and Infectious Diseases Center Komagome Hospital, Bunkyo-ku, Tokyo 113-8677, Japan
| | - Toshio Shimokawa
- Department of Medical Data Science, Graduate School of Medicine, Wakayama Medical University, Wakayama 641-8509, Japan
| | - Kenta Takahashi
- Department of Pathology, National Institute of Infectious Diseases, Shinjuku-ku, Tokyo 162-8640, Japan
| | - Tadaki Suzuki
- Department of Pathology, National Institute of Infectious Diseases, Shinjuku-ku, Tokyo 162-8640, Japan
| | - Nobuaki Funata
- Department of Pathology, Tokyo Metropolitan Cancer and Infectious Diseases Center Komagome Hospital, Bunkyo-ku, Tokyo 113-8677, Japan
| | - Masafumi Harada
- Department of Radiology, Tokushima University School of Medicine, Tokushima 770-8503, Japan
| | - Koichiro Mori
- Department of Radiology, Tokyo Metropolitan Cancer and Infectious Diseases Center Komagome Hospital, Bunkyo-ku, Tokyo 113-8677, Japan
| | - Nobuo Sanjo
- Department of Neurology and Neurological Science, Tokyo Medical and Dental University Graduate School of Medical and Dental Sciences, Bunkyo-ku, Tokyo 113-8510, Japan
| | - Motohiro Yukitake
- Department of Neurology, Kouhoukai Takagi Hospital, Okawa-shi 831-0016, Fukuoka, Japan
| | - Kazuya Takahashi
- Department of Neurology, Hokuriku Brain and Neuromuscular Disease Center, National Hospital Organization Iou National Hospital, Kanazawa-shi 920-0192, Ishikawa, Japan
| | - Tsuyoshi Hamaguchi
- Department of Neurology, Kanazawa Medical University, Kahoku-gun 920-0293, Ishikawa, Japan
| | - Shoko Izaki
- Department of Neurology, National Hospital Organization Saitama Hospital, Wako-shi 351-0102, Saitama, Japan
- Department of Neurology, Saitama Medical Center, Saitama Medical University, Kawagoe-shi 350-8550, Saitama, Japan
| | - Satoru Oji
- Department of Neurology, Saitama Medical Center, Saitama Medical University, Kawagoe-shi 350-8550, Saitama, Japan
| | - Jin Nakahara
- Department of Neurology, Keio University School of Medicine, Shinjuku-ku, Tokyo 160-8582, Japan
| | - Ryusuke Ae
- Division of Public Health, Center for Community Medicine, Jichi Medical University, Shimotsuke-shi 329-0498, Tochigi, Japan
| | - Koki Kosami
- Division of Public Health, Center for Community Medicine, Jichi Medical University, Shimotsuke-shi 329-0498, Tochigi, Japan
| | - Souichi Nukuzuma
- Department of Infectious Diseases, Kobe Institute of Health, Kobe-shi 650-0046, Hyogo, Japan
| | - Yosikazu Nakamura
- Division of Public Health, Center for Community Medicine, Jichi Medical University, Shimotsuke-shi 329-0498, Tochigi, Japan
| | - Kyoichi Nomura
- Department of Neurology, Saitama Medical Center, Saitama Medical University, Kawagoe-shi 350-8550, Saitama, Japan
- Higashimatsuyama Municipal Hospital, Higashimatsuyama-shi 355-0005, Saitama, Japan
| | - Shuji Kishida
- Department of Neurology, Narita Tomisato Tokushukai Hospital, Tomisato-shi 286-0201, Chiba, Japan
| | - Hidehiro Mizusawa
- Department of Neurology, National Center Hospital, National Center of Neurology and Psychiatry, Kodaira-shi, Tokyo 187-8551, Japan
| | - Masahito Yamada
- Division of Neurology, Department of Internal Medicine, Kudanzaka Hospital, Chiyoda-ku, Tokyo 102-0074, Japan
| | - Masaki Takao
- Department of Laboratory Medicine, National Center Hospital, National Center of Neurology and Psychiatry, Kodaira-shi, Tokyo 187-8551, Japan
- Department of General Internal Medicine, National Center Hospital, National Center of Neurology and Psychiatry, Kodaira-shi, Tokyo 187-8551, Japan
| | - Hideki Ebihara
- Department of Virology 1, National Institute of Infectious Diseases, Shinjuku-ku, Tokyo 162-8640, Japan
| | - Masayuki Saijo
- Department of Virology 1, National Institute of Infectious Diseases, Shinjuku-ku, Tokyo 162-8640, Japan
- Medical Affairs Department, Health and Welfare Bureau, Sapporo-shi 060-0042, Hokkaido, Japan
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15
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Valente J, Del-Tejo PL, Cubas-Vega NC, Rodrigues MGDA, de Barros FRB, Alexandre MA, Arêas GPT, Bastos M, Pinto SD, Barros CMSS, Marinho EP, Mello S, Ferreira E, Aprigio V, Monte RL, Sampaio V, Lacerda M, Baia-da-Silva DC, Val F. Sequelae and mortality in patients with HIV/AIDS and Progressive Multifocal Leukoencephalopathy: Systematic review and case series in the Brazilian Amazon. FRONTIERS IN TROPICAL DISEASES 2023. [DOI: 10.3389/fitd.2023.1050477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/17/2023] Open
Abstract
BackgroundProgressive Multifocal Leukoencephalopathy (PML) is an opportunistic neurological disease that mainly affects individuals with HIV/AIDS and has high morbidity and mortality, due to its demyelinating characteristic. This co-infection has been reported since the begging of HIV/Aids epidemic with increasing unfavorable outcomes, however, factors associated to sequelae and death are greatly unknown. In this study we aimed to understand factors associated with the main outcomes of individuals diagnosed with PML and HIV/AIDS, in addition to reporting the characteristics of patients presenting to a referral center in infectious diseases in the Brazilian Amazon.MethodsA systematic review was performed until July 2022, following the PRISMA guidelines, at Medline/Pubmed, Web of Science, Lilacs and Scielo databases using combinations of HIV, Aids, JC Virus and Progressive Multifocal Leukoencephalopathy, with no restriction to publication date. Additional cases, meeting the eligibility criteria, were added from our hospital database, which consisted of patients presenting PML/HIV between 2010 and 2022. A meta-analysis aiming to explore factors associated to sequelae and death was performed. Baseline characteristics were described using mean and standard deviation, or median and interquartile range when appropriate; multivariate analysis was performed to study factors associated to death and sequelae outcomes.ResultsEighteen patients were diagnosed between 2010 and 2022, of these, 10 had positive PCR for JC virus. In the Systematic Review, 216 studies yielded 235 confirmed cases of co-infection. A total of 245 were included for analysis. The rates of death and sequelae were, respectively, 47.1% (114/242) and 41.2% (54/131). The use of antiretroviral therapy was more associated with a lower chance of death (OR 0.30, 95% CI: 0.11-0.83), while muscle weakness (OR 4.82, 95% CI: 2.07-11.21) and muscle spasms (OR 6.12, 95% CI: 1.05-35.76) were associated with greater chances of sequelae.ConclusionThose on antiretroviral therapy appear to be less likely to die, and among those who survive, those who have muscle weakness as a symptom on admission are more likely to develop sequelae. Adherence to ART, as well as a comprehensive clinical evaluation and follow-up may help to improve clinical outcomes and awareness of morbidities.
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16
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Hoeynck BW, Cohen AD, Stadtmauer EA, Susanibar-Adaniya SP, Vogl DT, Waxman AJ, Bardsley M, Le S, LaMaestra L, Garfall AL. Progressive multifocal leukoencephalopathy in multiple myeloma. Eur J Haematol Suppl 2023; 110:322-329. [PMID: 36465014 DOI: 10.1111/ejh.13909] [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: 08/22/2022] [Revised: 11/28/2022] [Accepted: 11/30/2022] [Indexed: 12/12/2022]
Abstract
Progressive multifocal leukoencephalopathy (PML) is a rare and often fatal demyelinating disease of the central nervous system caused by reactivation of the JC virus in the context of immune suppression such as HIV, malignancy, and certain immunomodulatory medications. PML has been reported only rarely in multiple myeloma patients, and its presenting features and natural history in this population are not well known. We describe six cases of PML among multiple myeloma patients treated at our institution between 2013 and 2022, including two that developed on or shortly after treatment with recently developed BCMA-directed immunotherapies.
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Affiliation(s)
- Brian W Hoeynck
- Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Adam D Cohen
- Abramson Cancer Center, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA.,Division of Hematology/Oncology, Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Edward A Stadtmauer
- Abramson Cancer Center, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA.,Division of Hematology/Oncology, Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Sandra P Susanibar-Adaniya
- Abramson Cancer Center, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA.,Division of Hematology/Oncology, Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Dan T Vogl
- Abramson Cancer Center, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA.,Division of Hematology/Oncology, Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Adam J Waxman
- Abramson Cancer Center, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA.,Division of Hematology/Oncology, Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Mark Bardsley
- Abramson Cancer Center, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Samantha Le
- Abramson Cancer Center, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Lexis LaMaestra
- Abramson Cancer Center, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Alfred L Garfall
- Abramson Cancer Center, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA.,Division of Hematology/Oncology, Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
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17
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Joly M, Conte C, Cazanave C, Le Moing V, Tattevin P, Delobel P, Sommet A, Martin-Blondel G. Progressive multifocal leukoencephalopathy: epidemiology and spectrum of predisposing conditions. Brain 2023; 146:349-358. [PMID: 35779271 DOI: 10.1093/brain/awac237] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2022] [Revised: 05/15/2022] [Accepted: 06/20/2022] [Indexed: 01/11/2023] Open
Abstract
Population-based data on the epidemiology of progressive multifocal leukoencephalopathy, its predisposing conditions and mortality rate are lacking, although such data are crucial to raise awareness among clinicians and to lay foundations for future therapeutic trials in immunomodulating therapies. In our study, patients were identified by interrogating the French national healthcare reimbursement database from 1 January 2008 to 31 December 2017, using progressive multifocal leukoencephalopathy International Classification of Diseases code and a patient's selection algorithm. Overall incidence rate, 1-year all-cause mortality rate and survival patterns were calculated, and factors associated with death were identified using a multivariate Cox proportional hazards regression model. Our cohort is the largest to date, comprising 584 patients with incident progressive multifocal leukoencephalopathy. The overall incidence in France from 2010 to 2017 was stable during the study period at 0.11 per 100 000 person-years, 95% confidence interval [0.10-0.12]. Predisposing diseases were HIV infection (43.7%), followed by haematological malignancies (21.9%), chronic inflammatory diseases (20.2%), solid organ transplantation (4.3%), solid neoplasm (4.1%) and primary immune deficiency (1.5%). The 1-year mortality rate was 38.2%, with a 95% confidence interval (34.2-42.2). In multivariate analysis, factors independently associated with death were older age [adjusted hazard ratio 0.33 (0.20-0.53) for patients aged 20 to 40 compared with patients aged over 60], male gender [adjusted hazard ratio 0.73 (0.54-0.99) for females compared with males] and predisposing immunosuppressive disease, with the highest risk for solid neoplasms [adjusted hazard ratio 4.34 (2.25-8.37)], followed by haematological malignancies [adjusted hazard ratio 3.13 (1.85-5.30)] and HIV infection [adjusted hazard ratio 1.83 (1.12-3.00)], compared with chronic inflammatory diseases. Immune reconstitution inflammatory syndrome was notified in 7.0% of patients. In conclusion, incidence of progressive multifocal leukoencephalopathy is stable in France, and HIV infection remains the main predisposing disease. This large-size cohort uncovers a higher risk of mortality for male patients compared to females, and the worst prognosis for patients with solid neoplasm, while prognosis in patients with haematological malignancies appeared less dismal than in previous studies.
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Affiliation(s)
- Marine Joly
- Department of Infectious and Tropical Diseases, Toulouse University Hospital Center, Toulouse 31300, France
| | - Cécile Conte
- Department of Medical Pharmacology, CIC 1436, Toulouse University Hospital Center, Toulouse 31300, France
| | - Charles Cazanave
- Department of Infectious and Tropical Diseases, Bordeaux University Hospital Center, Bordeaux 33300, France
| | - Vincent Le Moing
- Department of Infectious and Tropical Diseases, Montpellier University Hospital Center, Montpellier 34295, France
| | - Pierre Tattevin
- Department of Medical Intensive Care and Infectious Diseases, Rennes University Hospital Center, Rennes 35000, France
| | - Pierre Delobel
- Department of Infectious and Tropical Diseases, Toulouse University Hospital Center, Toulouse 31300, France.,Institut Toulousain des Maladies Infectieuses et Inflammatoires (Infinity) INSERM UMR1291, CNRS UMR5051, University of Toulouse III, Toulouse 31300, France
| | - Agnès Sommet
- Department of Medical Pharmacology, CIC 1436, Toulouse University Hospital Center, Toulouse 31300, France
| | - Guillaume Martin-Blondel
- Department of Infectious and Tropical Diseases, Toulouse University Hospital Center, Toulouse 31300, France.,Institut Toulousain des Maladies Infectieuses et Inflammatoires (Infinity) INSERM UMR1291, CNRS UMR5051, University of Toulouse III, Toulouse 31300, France
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18
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Ostolaza A, Gastón I, Marta J, Ormazabal I, Erro M. Leucoencefalopatía multifocal progresiva: a propósito de un caso que precede al diagnóstico de un linfoma sistémico. Neurologia 2022. [DOI: 10.1016/j.nrl.2022.07.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022] Open
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19
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Complexities of JC Polyomavirus Receptor-Dependent and -Independent Mechanisms of Infection. Viruses 2022; 14:v14061130. [PMID: 35746603 PMCID: PMC9228512 DOI: 10.3390/v14061130] [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: 04/26/2022] [Revised: 05/19/2022] [Accepted: 05/20/2022] [Indexed: 02/05/2023] Open
Abstract
JC polyomavirus (JCPyV) is a small non-enveloped virus that establishes lifelong, persistent infection in most of the adult population. Immune-competent patients are generally asymptomatic, but immune-compromised and immune-suppressed patients are at risk for the neurodegenerative disease progressive multifocal leukoencephalopathy (PML). Studies with purified JCPyV found it undergoes receptor-dependent infectious entry requiring both lactoseries tetrasaccharide C (LSTc) attachment and 5-hydroxytryptamine type 2 entry receptors. Subsequent work discovered the major targets of JCPyV infection in the central nervous system (oligodendrocytes and astrocytes) do not express the required attachment receptor at detectable levels, virus could not bind these cells in tissue sections, and viral quasi-species harboring recurrent mutations in the binding pocket for attachment. While several research groups found evidence JCPyV can use novel receptors for infection, it was also discovered that extracellular vesicles (EVs) can mediate receptor independent JCPyV infection. Recent work also found JCPyV associated EVs include both exosomes and secretory autophagosomes. EVs effectively present a means of immune evasion and increased tissue tropism that complicates viral studies and anti-viral therapeutics. This review focuses on JCPyV infection mechanisms and EV associated and outlines key areas of study necessary to understand the interplay between virus and extracellular vesicles.
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Pinnetti C, Cimini E, Vergori A, Mazzotta V, Grassi G, Mondi A, Forbici F, Amendola A, Grisetti S, Baldini F, Candela C, Casetti R, Campioni P, Capobianchi MR, Agrati C, Antinori A. Use of Pembrolizumab for Treatment of Progressive Multifocal Leukoencephalopathy in People Living with HIV. Viruses 2022; 14:v14050970. [PMID: 35632711 PMCID: PMC9146231 DOI: 10.3390/v14050970] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Revised: 04/28/2022] [Accepted: 05/02/2022] [Indexed: 02/04/2023] Open
Abstract
Progressive Multifocal Leukoencephalopathy (PML) is a demyelinating disease occurring in advanced HIV infection, caused by the reactivation of poliomavirus JC (JCV). The use of pembrolizumab for treatment is based on the inhibition of programmed cell death protein 1 (PD-1), potentially improving the anti JCV-specific response. We used pembrolizumab with combined antiretroviral treatment (cART) on a compassionate-use basis. At each administration, clinical evaluation, MRI and laboratory testing, including CD3, CD4, CD8, PD-1 markers, HIV-RNA and JCV-DNA in cerebrospinal fluid (CSF)/plasma pairs, were performed. The JCV-specific T cell response was analysed by Elispot assay. This study included five HIV patients: four male, median age 43 years (29–52), median CD4 and CD8 count 150 (15–158) and 973 (354–1250) cell/mm3, respectively; median JCV-DNA and HIV-RNA in CSF/plasma pairs 9.540/1.503 cps/mL and 2.230/619 cp/mL, respectively. Overall, patients received between two and seven doses of pembrolizumab. After treatment, we observed JCV-DNA reduction and PD-1 down-regulation both in CSF and in plasma (high in circulating CD4 and CD8 at baseline), which remained stable at low levels in all patients. Three out of five patients showed stability of clinical picture and neuroimaging, while two others died. More data are needed in order to identify predictors of response to therapy.
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Affiliation(s)
- Carmela Pinnetti
- HIV/AIDS Unit, National Institute for Infectious Diseases, Lazzaro Spallanzani IRCCS, 00149 Rome, Italy; (V.M.); (A.M.); (S.G.); (F.B.); (C.C.); (A.A.)
- Correspondence: (C.P.); (A.V.); Tel.: +39-0655170482 (C.P. & A.V.); Fax: +39-0655170477 (C.P. & A.V.)
| | - Eleonora Cimini
- Cellular Immunology and Pharmacology Laboratory, National Institute for Infectious Diseases, Lazzaro Spallanzani IRCCS, 00149 Rome, Italy; (E.C.); (G.G.); (R.C.); (C.A.)
| | - Alessandra Vergori
- HIV/AIDS Unit, National Institute for Infectious Diseases, Lazzaro Spallanzani IRCCS, 00149 Rome, Italy; (V.M.); (A.M.); (S.G.); (F.B.); (C.C.); (A.A.)
- Correspondence: (C.P.); (A.V.); Tel.: +39-0655170482 (C.P. & A.V.); Fax: +39-0655170477 (C.P. & A.V.)
| | - Valentina Mazzotta
- HIV/AIDS Unit, National Institute for Infectious Diseases, Lazzaro Spallanzani IRCCS, 00149 Rome, Italy; (V.M.); (A.M.); (S.G.); (F.B.); (C.C.); (A.A.)
| | - Germana Grassi
- Cellular Immunology and Pharmacology Laboratory, National Institute for Infectious Diseases, Lazzaro Spallanzani IRCCS, 00149 Rome, Italy; (E.C.); (G.G.); (R.C.); (C.A.)
| | - Annalisa Mondi
- HIV/AIDS Unit, National Institute for Infectious Diseases, Lazzaro Spallanzani IRCCS, 00149 Rome, Italy; (V.M.); (A.M.); (S.G.); (F.B.); (C.C.); (A.A.)
| | - Federica Forbici
- Laboratory of Virology, National Institute for Infectious Diseases, Lazzaro Spallanzani IRCCS, 00149 Rome, Italy; (F.F.); (A.A.); (M.R.C.)
| | - Alessandra Amendola
- Laboratory of Virology, National Institute for Infectious Diseases, Lazzaro Spallanzani IRCCS, 00149 Rome, Italy; (F.F.); (A.A.); (M.R.C.)
| | - Susanna Grisetti
- HIV/AIDS Unit, National Institute for Infectious Diseases, Lazzaro Spallanzani IRCCS, 00149 Rome, Italy; (V.M.); (A.M.); (S.G.); (F.B.); (C.C.); (A.A.)
| | - Francesco Baldini
- HIV/AIDS Unit, National Institute for Infectious Diseases, Lazzaro Spallanzani IRCCS, 00149 Rome, Italy; (V.M.); (A.M.); (S.G.); (F.B.); (C.C.); (A.A.)
| | - Caterina Candela
- HIV/AIDS Unit, National Institute for Infectious Diseases, Lazzaro Spallanzani IRCCS, 00149 Rome, Italy; (V.M.); (A.M.); (S.G.); (F.B.); (C.C.); (A.A.)
| | - Rita Casetti
- Cellular Immunology and Pharmacology Laboratory, National Institute for Infectious Diseases, Lazzaro Spallanzani IRCCS, 00149 Rome, Italy; (E.C.); (G.G.); (R.C.); (C.A.)
| | - Paolo Campioni
- Radiology Unit, National Institute for Infectious Diseases Lazzaro Spallanzani IRCCS, 00149 Rome, Italy;
| | - Maria Rosaria Capobianchi
- Laboratory of Virology, National Institute for Infectious Diseases, Lazzaro Spallanzani IRCCS, 00149 Rome, Italy; (F.F.); (A.A.); (M.R.C.)
| | - Chiara Agrati
- Cellular Immunology and Pharmacology Laboratory, National Institute for Infectious Diseases, Lazzaro Spallanzani IRCCS, 00149 Rome, Italy; (E.C.); (G.G.); (R.C.); (C.A.)
| | - Andrea Antinori
- HIV/AIDS Unit, National Institute for Infectious Diseases, Lazzaro Spallanzani IRCCS, 00149 Rome, Italy; (V.M.); (A.M.); (S.G.); (F.B.); (C.C.); (A.A.)
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Anand P, Vincent Lau K, Martinez-Ramirez S. MRI Shrimp Sign in Sarcoidosis-Associated Cerebellar Progressive Multifocal Leukoencephalopathy. AJNR Am J Neuroradiol 2022; 43:E1-E2. [PMID: 35058301 PMCID: PMC8985664 DOI: 10.3174/ajnr.a7407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- P. Anand
- Department of NeurologyBoston Medical CenterBoston University School of MedicineBoston, Massachusetts
| | - K.H. Vincent Lau
- Department of NeurologyBoston Medical CenterBoston University School of MedicineBoston, Massachusetts
| | - S. Martinez-Ramirez
- Department of NeurologyBoston Medical CenterBoston University School of MedicineBoston, Massachusetts
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22
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Corey S, Smith BR, Cortese ICM. Promise and Challenges of Checkpoint Inhibitor Therapy for Progressive Multifocal Leukoencephalopathy in HIV. Curr HIV/AIDS Rep 2022; 19:580-591. [PMID: 36181625 PMCID: PMC9759507 DOI: 10.1007/s11904-022-00626-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/29/2022] [Indexed: 01/31/2023]
Abstract
PURPOSE OF REVIEW Progressive multifocal leukoencephalopathy (PML) is a severe opportunistic infection that remains an important cause of morbidity and mortality in people living with HIV (PLWH). Immune checkpoint molecules are negative regulators of the immune response that have been targeted as a strategy to bolster anti-viral immunity in PML, with varied outcomes reported. While initiation and optimization of antiretroviral therapy remains the standard of care in HIV-related PML, the specific opportunities and risks for checkpoint blockade in these cases should be explored. RECENT FINDINGS As of April 15, 2022, only 5 of the 53 total published cases of PML treated with checkpoint blockade had underlying HIV infection; four of these had a favorable outcome. The risk of promoting immune reconstitution inflammatory syndrome is a major concern and underscores the importance of patient selection and monitoring. Checkpoint blockade warrants further exploration as a potentially promising option for treatment escalation in HIV-related PML.
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Affiliation(s)
- Sydney Corey
- grid.416870.c0000 0001 2177 357XExperimental Immunotherapeutics Unit, National Institute of Neurological Disorders and Stroke, National Institutes of Health, 10 Center Drive, 5C103, Bethesda, MD 20892-1684 USA
| | - Bryan R. Smith
- grid.416870.c0000 0001 2177 357XSection of Infections of the Nervous System, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD USA
| | - Irene C. M. Cortese
- grid.416870.c0000 0001 2177 357XExperimental Immunotherapeutics Unit, National Institute of Neurological Disorders and Stroke, National Institutes of Health, 10 Center Drive, 5C103, Bethesda, MD 20892-1684 USA
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23
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PI3K/AKT/mTOR Signaling Pathway Is Required for JCPyV Infection in Primary Astrocytes. Cells 2021; 10:cells10113218. [PMID: 34831441 PMCID: PMC8624856 DOI: 10.3390/cells10113218] [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] [Received: 10/08/2021] [Revised: 11/05/2021] [Accepted: 11/12/2021] [Indexed: 12/13/2022] Open
Abstract
Astrocytes are a main target of JC polyomavirus (JCPyV) in the central nervous system (CNS), where the destruction of these cells, along with oligodendrocytes, leads to the fatal disease progressive multifocal leukoencephalopathy (PML). There is no cure currently available for PML, so it is essential to discover antivirals for this aggressive disease. Additionally, the lack of a tractable in vivo models for studying JCPyV infection makes primary cells an accurate alternative for elucidating mechanisms of viral infection in the CNS. This research to better understand the signaling pathways activated in response to JCPyV infection reveals and establishes the importance of the PI3K/AKT/mTOR signaling pathway in JCPyV infection in primary human astrocytes compared to transformed cell lines. Using RNA sequencing and chemical inhibitors to target PI3K, AKT, and mTOR, we have demonstrated the importance of this signaling pathway in JCPyV infection of primary astrocytes not observed in transformed cells. Collectively, these findings illuminate the potential for repurposing drugs that are involved with inhibition of the PI3K/AKT/mTOR signaling pathway and cancer treatment as potential therapeutics for PML, caused by this neuroinvasive virus.
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24
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Farmania R, Sharma S, Handa R, Seth A. Progressive Multifocal Leukoencephalopathy as the Initial Presentation in an Apparently Healthy Child. Ann Indian Acad Neurol 2021; 24:612-614. [PMID: 34728969 PMCID: PMC8513966 DOI: 10.4103/aian.aian_818_20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Revised: 08/08/2020] [Accepted: 08/18/2020] [Indexed: 11/29/2022] Open
Affiliation(s)
- Rajni Farmania
- Consultant Pediatric Neurologist, BLK Super Speciality Hospital, New Delhi, India
| | - Suvasini Sharma
- Department of Pediatrics (Neurology Division), Lady Hardinge Medical College and Kalawati Saran Children's Hospital, New Delhi, India
| | - Rahul Handa
- Consultant Neurologist, BLK Super Speciality Hospital, New Delhi, India
| | - Anju Seth
- Department of Pediatrics, Lady Hardinge Medical College and Kalawati Saran Children's Hospital, New Delhi, India
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Fukumoto T, Sakashita Y, Katada F, Takeuchi R, Miyamoto R, Izumi Y, Sato S, Shibayama H, Takahashi K, Suzuki T, Nakamichi K, Murayama S, Fukutake T. "Burnt-out" progressive multifocal leukoencephalopathy in idiopathic CD4 + lymphocytopenia. Neuropathology 2021; 41:484-488. [PMID: 34595780 DOI: 10.1111/neup.12773] [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: 05/01/2021] [Revised: 07/19/2021] [Accepted: 07/28/2021] [Indexed: 11/29/2022]
Abstract
Progressive multifocal leukoencephalopathy (PML) is a fatal disease caused by John Cunningham virus (JCV) infection; however, a growing number of PML patients now survive longer and achieve remission, largely due to the advent of combination antiretroviral therapy. Several reports have suggested that the pathology in such patients presents only chronic demyelination without characteristic cellular changes, being referred to as "burnt-out" PML. On the other hand, our knowledge of "burnt-out" PML is still substantially limited, especially in patients with non-human immunodeficiency virus infection. Here, we report a case of PML associated with idiopathic CD4+ lymphocytopenia (ICL) who presented with spontaneous remission and survived for 11 years after onset. Notably, postmortem examination revealed surprisingly broad "burnt-out" lesions lacking the classic histopathological findings. However, pathogenic JCV-specific DNA sequences was still present in the autopsied brain tissue. This case suggests that complete remission can be achieved with a persistent presence of JCV-specific pathogenic sequences, even after a catastrophic infection. Considering that there have been a few reported cases of PML with ICL with long survival, the long-term survival of our case may share a favorable immunological response that is unique to a subgroup of ICL.
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Affiliation(s)
- Tatsuya Fukumoto
- Department of Neurology, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan.,Department of Neurology, Kameda Medical Center, Kamogawa, Japan
| | - Yasuhiro Sakashita
- Department of Neurology and Neuropathology, Tokyo Metropolitan Geriatric Hospital and Institute of Gerontology, Tokyo, Japan
| | - Fumiaki Katada
- Department of Neurology, Kameda Medical Center, Kamogawa, Japan
| | - Ryoko Takeuchi
- Department of Neurology, Kameda Medical Center, Kamogawa, Japan
| | - Ryosuke Miyamoto
- Department of Neurology, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
| | - Yuishin Izumi
- Department of Neurology, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
| | - Susumu Sato
- Department of Neurology, Kameda Medical Center, Kamogawa, Japan
| | | | - Kenta Takahashi
- Department of Pathology, National Institute of Infectious Diseases, Tokyo, Japan
| | - Tadaki Suzuki
- Department of Pathology, National Institute of Infectious Diseases, Tokyo, Japan
| | - Kazuo Nakamichi
- Department of Virology 1, National Institute of Infectious Diseases, Tokyo, Japan
| | - Shigeo Murayama
- Department of Neurology and Neuropathology, Tokyo Metropolitan Geriatric Hospital and Institute of Gerontology, Tokyo, Japan
| | - Toshio Fukutake
- Department of Neurology, Kameda Medical Center, Kamogawa, Japan
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26
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BK virus-specific T cells for immunotherapy of progressive multifocal leukoencephalopathy: an open-label, single-cohort pilot study. Lancet Neurol 2021; 20:639-652. [PMID: 34302788 DOI: 10.1016/s1474-4422(21)00174-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Revised: 05/11/2021] [Accepted: 05/25/2021] [Indexed: 11/22/2022]
Abstract
BACKGROUND Progressive multifocal leukoencephalopathy, a rare disease of the CNS caused by JC virus and occurring in immunosuppressed people, is typically fatal unless adaptive immunity is restored. JC virus is a member of the human polyomavirus family and is closely related to the BK virus. We hypothesised that use of partly HLA-matched donor-derived BK virus-specific T cells for immunotherapy in progressive multifocal leukoencephalopathy would be feasible and safe. METHODS We did an open-label, single-cohort pilot study in patients (aged 18 years or older) with clinically definite progressive multifocal leukoencephalopathy and disease progression in the previous month at the National Institutes of Health (NIH) Clinical Center (Bethesda, MD, USA). Overlapping peptide libraries derived from large T antigen and major capsid protein VP1 of BK virus with high sequence homology to JC virus counterparts were used to generate polyomavirus-specific T cells cross-recognising JC virus antigens. Polyomavirus-specific T cells were manufactured from peripheral blood mononuclear cells of first-degree relative donors aged 18 years or older. These cells were administered to patients by intravenous infusion at 1 × 106 polyomavirus-specific T cells per kg, followed by up to two additional infusions at 2 × 106 polyomavirus-specific T cells per kg. The primary endpoints were feasibility (no manufacturing failure based on meeting release criteria, achieving adequate numbers of cell product for clinical use, and showing measurable antiviral activity) and safety in all patients. The safety monitoring period was 28 days after each infusion. Patients were followed up with serial MRI for up to 12 months after the final infusion. This trial is registered at ClinicalTrials.gov, NCT02694783. FINDINGS Between April 7, 2016, and Oct 19, 2018, 26 patients were screened, of whom 12 were confirmed eligible and received treatment derived from 14 matched donors. All administered polyomavirus-specific T cells met the release criteria and recognised cognate antigens in vitro. 12 patients received at least one infusion, ten received at least two, and seven received a total of three infusions. The median on-study follow-up was 109·5 days (range 23-699). All infusions were tolerated well, and no serious treatment-related adverse events were observed. Seven patients survived progressive multifocal leukoencephalopathy for longer than 1 year after the first infusion, whereas five died of progressive multifocal leukoencephalopathy within 3 months. INTERPRETATION We showed that generation of polyomavirus-specific T cells from healthy related donors is feasible, and these cells can be safely used as an infusion for adoptive immunotherapy of progressive multifocal leukoencephalopathy. Although not powered to assess efficacy, our data provide additional support for this strategy as a potential life-saving therapy for some patients. FUNDING Intramural Research Program of the National Institute of Neurological Disorders and Stroke of the NIH.
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Bernard-Valnet R, Koralnik IJ, Du Pasquier R. Advances in Treatment of Progressive Multifocal Leukoencephalopathy. Ann Neurol 2021; 90:865-873. [PMID: 34405435 PMCID: PMC9291129 DOI: 10.1002/ana.26198] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 08/09/2021] [Accepted: 08/11/2021] [Indexed: 12/19/2022]
Abstract
Progressive multifocal encephalopathy (PML) is a severe demyelinating disease of the central nervous system (CNS) caused by JC virus (JCV), which occurs in immunocompromised individuals. Management of PML relies on restoration of immunity within the CNS. However, when this restoration cannot be readily achieved, PML has a grim prognosis. Innovative strategies have shown promise in promoting anti‐JCV immune responses, and include T‐cell adoptive transfer or immune checkpoint inhibitor therapies. Conversely, management of immune reconstitution inflammatory syndrome, particularly in iatrogenic PML, remains a major challenge. In this paper, we review recent development in the treatment of PML. ANN NEUROL 2021;90:865–873
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Affiliation(s)
- Raphaël Bernard-Valnet
- Service of Neurology, Department of Clinical Neurosciences, University Hospital of Lausanne and University of Lausanne, Lausanne, Switzerland
| | - Igor J Koralnik
- Davee Department of Neurology, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Renaud Du Pasquier
- Service of Neurology, Department of Clinical Neurosciences, University Hospital of Lausanne and University of Lausanne, Lausanne, Switzerland
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Anand P. Neurologic Infections in Patients on Immunomodulatory and Immunosuppressive Therapies. ACTA ACUST UNITED AC 2021; 27:1066-1104. [PMID: 34623105 DOI: 10.1212/con.0000000000000985] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
PURPOSE OF REVIEW Both broadly immunosuppressive medications and selective immunomodulatory agents that act on particular components of the immune system are increasingly used in the treatment of neurologic and non-neurologic diseases. These therapies predispose patients to particular infections, some of which may affect the nervous system. Therefore, familiarity with the clinical and radiologic features of neurologic infections associated with specific immunomodulatory therapies is of importance for the practicing neurologist. This article reviews these neuroinfectious conditions, as well as other neurologic complications unique to transplant recipients and other patients who are immunocompromised. RECENT FINDINGS Diagnosis of infectious pathogens in patients who are immunocompromised may be particularly challenging because a decreased immune response can lead to atypical imaging or laboratory findings. Next-generation sequencing and other novel diagnostic modalities may improve the rate of early identification of neurologic infections in patients who are immunocompromised and ultimately ameliorate outcomes in this vulnerable population. SUMMARY A broad range of bacterial, viral, fungal, and parasitic infections of the nervous system can complicate solid organ and hematopoietic cell transplantation as well as other forms of immunocompromise. In addition to neurologic infections, such patients are at risk of neurotoxic and neuroinflammatory complications related to immunomodulatory and immunosuppressive therapies. Early recognition of infectious and noninfectious complications of immunocompromise is essential to guide appropriate treatment, which can include antimicrobial therapy and, in some cases, withdrawal of the predisposing medication with a transition to an alternative regimen.
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Bakal JA, Charlton CL, Hlavay B, Jansen GH, Svenson LW, Power C. Progressive multifocal leukoencephalopathy and Creutzfeldt-Jakob disease: population-wide incidences, comorbidities, costs of care, and outcomes. J Neurovirol 2021; 27:476-481. [PMID: 33978904 DOI: 10.1007/s13365-021-00983-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Revised: 04/20/2021] [Accepted: 04/27/2021] [Indexed: 10/21/2022]
Abstract
Neurological disorders associated with chronic infections are often progressive as well as challenging to diagnose and manage. Among 4.4 million persons from 2004 to 2019 receiving universal health, progressive multifocal leukoencephalopathy (PML, n = 58) and Creutzfeldt-Jakob disease (CJD, n = 93) cases were identified, revealing stable yearly incidence rates with divergent comorbidities: HIV/AIDS affected 37.8% of PML cases while cerebrovascular disease affected 26.9% of CJD cases. Most CJD cases died within 1 year (73%) although PML cases lived beyond 5 years (34.1%) despite higher initial costs of care. PML and CJD represent important neurological disorders with evolving risk variables and impact on health care.
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Affiliation(s)
- J A Bakal
- Provincial Research Data Services-Alberta Health Services, Edmonton, AB, Canada
| | - C L Charlton
- Public Health Laboratory, Alberta Precision Laboratories, Edmonton, AB, Canada
- Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, AB, Canada
- Li Ki Sheng Institute of Virology, Edmonton, AB, Canada
| | - B Hlavay
- Department of Medicine, Medical Research Centre, University of Alberta, 6-11 Heritage, Edmonton, AB, Canada
| | - G H Jansen
- Division of Anatomical Pathology, University of Ottawa, Ottawa, ON, Canada
| | - L W Svenson
- Department of Medicine, Medical Research Centre, University of Alberta, 6-11 Heritage, Edmonton, AB, Canada
- Analytics & Performance Reporting Branch, Alberta Health, Edmonton, AB, Canada
- School of Public Health, University of Alberta, Edmonton, AB, Canada
- Department of Community Health Sciences, University of Calgary, Calgary, AB, Canada
| | - C Power
- Department of Medicine, Medical Research Centre, University of Alberta, 6-11 Heritage, Edmonton, AB, Canada.
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30
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Ruiz Romagnoli E, Akly MP, Miquelini LA, Funes J, Gillanders T, Besada C. Understanding progressive multifocal leukoencephalopathy: links between milky-way appearance and mismatch T2/FLAIR. Neuroradiol J 2021; 34:646-655. [PMID: 34048309 DOI: 10.1177/19714009211019374] [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: 11/17/2022] Open
Abstract
BACKGROUND Magnetic resonance imaging is essential to diagnose progressive multifocal leukoencephalopathy. The broad radiological spectrum may partially be explained by genetic viral mutations and their differential neurotropism. Recent pharmacovigilance-magnetic resonance imaging studies have provided new insight into pathophysiology and radiological markers of early stages. However, how lesions evolve and why certain anatomical locations are more frequently affected remains unknown. We aim to describe a new sign - T2/fluid-attenutated inversion recovery mismatch - as a complementary marker of cavitated lesions and propose a link with the milky-way appearance, a key early sign. Furthermore, we hypothesise viral dissemination routes. METHODS We conducted a retrospective longitudinal study from January 2010 to January 2020, to analyse clinical and magnetic resonance imaging features of 13 progressive multifocal leukoencephalopathy individuals at the symptomatic stage (mean age 58.3 years (SD ± 16.8) - 61.5% were women). RESULTS The most prevalent pathology was HIV (61.5%) and motor deficit prevailed regarding other symptoms (76.9%). Frontal lobes (76.9%), middle cerebellar peduncle (61.5%), cerebellum (61.5%), and pons (53.8%) were most commonly affected, and the cortico-ponto-cerebellar pathway seemed involved in these patients. Five patients had a pure radiological pattern. Milky-way appearance was the most frequent radiological sign (58.3%). Five patients with milky-way appearance had concomitantly T2/fluid-attenuated inversion recovery mismatch (P = 0.02). This sign showed high sensitivity and specificity (100-71%, P = 0.02) to assess evolved lesions besides diffusion. CONCLUSION The possible tract-dependent spread, as well as clinical and genetic, have implications on the MRI variability of progressive multifocal leukoencephalopathy. The milky-way appearance could reflect a transitional phase towards evolved lesions, the latter demonstrated by T2/fluid-attenuated inversion recovery mismatch. Both could be key magnetic resonance imaging signs to diagnose progressive multifocal leukoencephalopathy at the symptomatic stage.
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Affiliation(s)
| | | | | | - Jorge Funes
- 37533Hospital Italiano de Buenos Aires, Argentina
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31
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Fischbach L, Bauer T, Rüber T, Grobe-Einsler M, Sitter A, Radbruch A, Kaut O. Treatment of progressive multifocal Leukoencephalopathy associated with idiopathic lymphocytopenia with Nivolumab. J Neurol Sci 2021; 427:117503. [PMID: 34051624 DOI: 10.1016/j.jns.2021.117503] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 05/11/2021] [Accepted: 05/17/2021] [Indexed: 11/18/2022]
Affiliation(s)
- Laura Fischbach
- Department of Epileptology, University Hospital Bonn, Venusberg-Campus 1, 53127 Bonn, Germany.
| | - Tobias Bauer
- Department of Epileptology, University Hospital Bonn, Venusberg-Campus 1, 53127 Bonn, Germany.
| | - Theodor Rüber
- Department of Epileptology, University Hospital Bonn, Venusberg-Campus 1, 53127 Bonn, Germany.
| | - Marcus Grobe-Einsler
- Department of Neurology, University Hospital Bonn, Venusberg-Campus 1, 53127 Bonn, Germany; German Center for Neurodegenerative Diseases (DZNE), Venusberg-Campus 1, 53127 Bonn, Germany.
| | - Aileen Sitter
- Department of Psychiatry and Psychotherapy, University Hospital Bonn, Venusberg-Campus 1, 53127 Bonn, Germany.
| | - Alexander Radbruch
- Department of Neuroradiology, University Hospital Bonn, Venusberg-Campus 1, 53127 Bonn, Germany.
| | - Oliver Kaut
- Department of Neurology, University Hospital Bonn, Venusberg-Campus 1, 53127 Bonn, Germany.
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Complications neurologiques de l’infection par le virus JC : revue générale. Rev Med Interne 2021; 42:177-185. [DOI: 10.1016/j.revmed.2020.08.021] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Revised: 07/28/2020] [Accepted: 08/27/2020] [Indexed: 12/11/2022]
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McEntire CR, Fong KT, Jia DT, Cooper ER, Cervantes-Arslanian AM, Mateen FJ, Anand P, Thakur KT. Central nervous system disease with JC virus infection in adults with congenital HIV. AIDS 2021; 35:235-244. [PMID: 33394671 PMCID: PMC7945987 DOI: 10.1097/qad.0000000000002734] [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] [Indexed: 11/26/2022]
Abstract
OBJECTIVE The aim of this study was to describe the natural history of individuals with congenital HIV who develop JC virus (JCV) infection of the central nervous system (CNS). METHODS We retrospectively evaluated individuals with congenital HIV who met criteria for progressive multifocal leukoencephalopathy (PML) or JCV granule cell neuronopathy (JCV GCN) at three major healthcare centres in the northeast USA. Data on adherence to combined antiretroviral therapy (cART), neurologic symptoms, serum markers of immunity and HIV infection, cerebrospinal fluid (CSF) analyses, radiographic features, modified Rankin Scale (mRS) scores and survival were collected from the electronic medical record up to a censoring date of 1 August 2020. RESULTS Among 10 adults with congenitally acquired HIV, nine were diagnosed with definitive PML and one was diagnosed with probable JCV GCN. Individuals presented at the time of their PML or JCV GCN diagnosis with a mean mRS of 2.0 (standard deviation 1.0). A premorbid mRS was documented for six patients and was zero in all cases. The most common risk factor was confirmed cART nonadherence in nine individuals. Five individuals with PML and one with JCV GCN died, with a latency from symptom onset to death of approximately 3 months for three individuals, and approximately 2 years for the remaining two. CONCLUSION Youth-adulthood transition is a high-risk point for dropping off from medical care. The study of this timepoint in people living with HIV could help inform effective care in these individuals.
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Affiliation(s)
| | - Kathryn T. Fong
- Department of Neurology, Columbia University Irving Medical Center, New York, NY 10032
| | - Dan Tong Jia
- Department of Neurology, Northwestern Memorial Hospital, Chicago, IL 60611
| | - Ellen R. Cooper
- Department of Pediatrics, Boston University School of Medicine, Boston, MA 02215
| | - Anna M. Cervantes-Arslanian
- Departments of Neurology, Neurosurgery, and Medicine (Infectious Disease), Boston Medical Center, Boston, MA 02118
| | - Farrah J. Mateen
- Department of Neurology, Massachusetts General Hospital, Boston, MA 02114
| | - Pria Anand
- Departments of Neurology, Neurosurgery, and Medicine (Infectious Disease), Boston Medical Center, Boston, MA 02118
| | - Kiran T Thakur
- Department of Neurology, Columbia University Irving Medical Center, New York, NY 10032
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JC Polyomavirus and Transplantation: Implications for Virus Reactivation after Immunosuppression in Transplant Patients and the Occurrence of PML Disease. TRANSPLANTOLOGY 2021. [DOI: 10.3390/transplantology2010004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The JC polyomavirus (JCPyV/JCV) is a member of the Polyomaviridae family and is ubiquitious in the general population, infecting 50–80% of individuals globally. A primary infection with JCV usally results in an asymptomatic, persistent infection that establishes latency in the renourinary tract. Reactivation from latency via iatrogenic immununosuppression for allograft transplantation may result in organ pathology and a potential life-threatening neuropathological disease in the form of progressive multifocal leukoencephalopathy (PML). Currently, no treatment exists for PML, a rare complication that occurs after transplantation, with an incidence of 1.24 per 1000 persons a year among solid organ transplant patients. PML is also observed in HIV patients who are immununosuppressed and are not receiving antiretroviral therapy, as well as individuals treated with biologics to suppress chronic inflammatory responses due to multiple sclerosis, Crohn’s disease, non-Hodgkin’s lymphoma, rheumatoid arthritis, and other autoimmune-mediated hematological disorders. Here, we describe the proposed mechanisms of JCV reactivation as it relates to iatrogenic immunosuppression for graft survival and the treatment of proinflammatory disease, such as biologics, proposed trafficking of JCV from the renourinary tract, JCV central nervous system dissemination and the pathology of PML in immunosuppressed patients, and potential novel therapeutics for PML disease.
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Mian A, Andrapalliyal N, Weathers AL, Pohlman B, Hill BT. Late occurrence of progressive multifocal leukoencephalopathy after anti-CD19 chimeric antigen receptor T-cell therapy. Eur J Haematol 2021; 106:584-588. [PMID: 33459429 DOI: 10.1111/ejh.13583] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Accepted: 01/14/2021] [Indexed: 01/08/2023]
Abstract
Progressive multifocal leukoencephalopathy (PML) is a life-threatening infection of the central nervous system in immunocompromised patients, with an established predilection in non-Hodgkin's lymphoma and stem cell transplant recipients. In the era of chimeric antigen receptor T-cell therapy (CAR T-cell), the occurrence of new-onset neurological symptoms and encephalopathy in this patient population can be attributed to a variety of factors, including therapy-related neurotoxicity or disease progression. PML has not been implicated as a common cause of encephalopathy in CAR T-cell therapy recipients, and the identification of such rare infections is important to guide prognosis and treatment decisions. We hereby report the first case of late occurrence of PML, over one year after CAR T-cell therapy, for a patient with relapsed large B-cell lymphoma.
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Affiliation(s)
- Agrima Mian
- Department of Hematology and Medical Oncology, Taussig Cancer Institute, Cleveland Clinic, Cleveland, OH, USA
| | | | | | - Brad Pohlman
- Department of Hematology and Medical Oncology, Taussig Cancer Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Brian T Hill
- Department of Hematology and Medical Oncology, Taussig Cancer Institute, Cleveland Clinic, Cleveland, OH, USA
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Steingrímsson V, Gíslason GK, Þorsteinsdóttir S, Rögnvaldsson S, Gottfreðsson M, Aspelund T, Turesson I, Björkholm M, Landgren O, Kristinsson SY. A nationwide study on inpatient opportunistic infections in patients with chronic lymphocytic leukemia in the pre-ibrutinib era. Eur J Haematol 2020; 106:346-353. [PMID: 33211356 DOI: 10.1111/ejh.13553] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Revised: 11/13/2020] [Accepted: 11/16/2020] [Indexed: 12/11/2022]
Abstract
OBJECTIVE Opportunistic infections in chronic lymphocytic leukemia (CLL) have been described in clinical trials, single-center studies, and case reports. We performed a nationwide study to estimate the incidence and impact of inpatient opportunistic infections. METHODS The incidence rate (IR) and incidence rate ratio (IRR) for Swedish CLL patients diagnosed 1994-2013, and matched controls were calculated, as well as the case-fatality ratio (CFR). RESULTS Among 8989 CLL patients, a total of 829 opportunistic infections were registered (IR 16.6 per 1000 person-years) compared with 252 opportunistic infections in 34 283 matched controls (IR 0.99). The highest incidence in the CLL cohort was for Pneumocystis pneumonia (200 infections, IR 4.03); Herpes zoster (146 infections, IR 2.94), and Pseudomonas (83 infections, IR 1.66) infections. The highest risk relative to matched controls was observed for Pneumocystis pneumonia (IRR 114, 95% confidence interval 58.7-252). The 60-day CFR for CLL patients with opportunistic infections was 23% (188/821), highest for progressive multifocal encephalopathy (5/7, 71%) and aspergillosis (25/60, 42%). CONCLUSION We have uniquely depicted the incidence of rare and serious infections in CLL patients and found a relatively high incidence of Pneumocystis pneumonia. Of the most common opportunistic infections, CLL patients with aspergillosis had the poorest prognosis.
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Affiliation(s)
| | | | | | | | - Magnús Gottfreðsson
- Faculty of Medicine, University of Iceland, Reykjavik, Iceland.,Department of Infectious Diseases, Landspitali University Hospital, Reykjavik, Iceland
| | - Thor Aspelund
- Centre for Public Health Sciences, University of Iceland, Reykjavik, Iceland
| | - Ingemar Turesson
- Department of Hematology and Coagulation Disorders, Skane University Hospital, Malmö, Sweden
| | - Magnus Björkholm
- Department of Medicine, Karolinska University Hospital and Karolinska Institutet, Stockholm, Sweden
| | - Ola Landgren
- Myeloma Service, Memorial Sloan-Kettering Cancer Center, New York, NY, USA
| | - Sigurdur Y Kristinsson
- Faculty of Medicine, University of Iceland, Reykjavik, Iceland.,Department of Medicine, Karolinska University Hospital and Karolinska Institutet, Stockholm, Sweden
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Breville G, Koralnik IJ, Lalive PH. Brainstem progressive multifocal leukoencephalopathy. Eur J Neurol 2020; 28:1016-1021. [PMID: 33128290 DOI: 10.1111/ene.14617] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Accepted: 10/18/2020] [Indexed: 12/01/2022]
Abstract
BACKGROUND AND PURPOSE Progressive multifocal leukoencephalopathy (PML) is a severe infection caused by the polyomavirus JC that develops in the central nervous system (CNS) of immunosuppressed patients. The infection frequently starts in the brain hemispheres and can spread into other CNS regions such as the brainstem. Initial isolated PML brainstem lesions are exceptional. We aimed to describe the challenging diagnosis of PML with isolated brainstem lesions at the time of disease onset. METHODS We describe a case of PML starting with an isolated brainstem lesion and reviewed clinical, radiological, and biological features of all the reported cases of isolated brainstem PML. RESULTS Isolated brainstem PML at disease onset is extremely rare. In addition to our case, only nine PML cases presenting with strictly isolated radioanatomical brainstem location at the time of disease onset were retrieved through the literature. All patients share similar brain magnetic resonance imaging features, without contrast enhancement. Eight patients presented with initial clinical worsening, but full recovery occurred in three patients, partial recovery in two, and death in three. Even if prognosis is reserved because of the surrounding vital structures in the brainstem, clinical recovery may occur. CONCLUSIONS This case report and literature review emphasize that isolated brainstem lesion is an atypical presentation of PML at disease onset.
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Affiliation(s)
- Gautier Breville
- Division of Neurology, Department of Neurosciences, Geneva University Hospital, Geneva, Switzerland
| | - Igor J Koralnik
- Division of Neuro-Infectious Diseases and Global Neurology, Department of Neurology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Patrice H Lalive
- Division of Neurology, Department of Neurosciences, Geneva University Hospital, Geneva, Switzerland.,Department of Pathology and Immunology, Faculty of Medicine, University of Geneva, Geneva, Switzerland.,Division of Laboratory Medicine, Diagnostic Department, Geneva University Hospital, Geneva, Switzerland
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Cortese I, Reich DS, Nath A. Progressive multifocal leukoencephalopathy and the spectrum of JC virus-related disease. Nat Rev Neurol 2020; 17:37-51. [PMID: 33219338 PMCID: PMC7678594 DOI: 10.1038/s41582-020-00427-y] [Citation(s) in RCA: 149] [Impact Index Per Article: 37.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/13/2020] [Indexed: 02/06/2023]
Abstract
Progressive multifocal leukoencephalopathy (PML) is a devastating CNS infection caused by JC virus (JCV), a polyomavirus that commonly establishes persistent, asymptomatic infection in the general population. Emerging evidence that PML can be ameliorated with novel immunotherapeutic approaches calls for reassessment of PML pathophysiology and clinical course. PML results from JCV reactivation in the setting of impaired cellular immunity, and no antiviral therapies are available, so survival depends on reversal of the underlying immunosuppression. Antiretroviral therapies greatly reduce the risk of HIV-related PML, but many modern treatments for cancers, organ transplantation and chronic inflammatory disease cause immunosuppression that can be difficult to reverse. These treatments — most notably natalizumab for multiple sclerosis — have led to a surge of iatrogenic PML. The spectrum of presentations of JCV-related disease has evolved over time and may challenge current diagnostic criteria. Immunotherapeutic interventions, such as use of checkpoint inhibitors and adoptive T cell transfer, have shown promise but caution is needed in the management of immune reconstitution inflammatory syndrome, an exuberant immune response that can contribute to morbidity and death. Many people who survive PML are left with neurological sequelae and some with persistent, low-level viral replication in the CNS. As the number of people who survive PML increases, this lack of viral clearance could create challenges in the subsequent management of some underlying diseases. In this Review, Cortese et al. provide an overview of the pathobiology and evolving presentations of progressive multifocal leukoencephalopathy and other diseases caused by JC virus, and discuss emerging immunotherapeutic approaches that could increase survival. Progressive multifocal leukoencephalopathy (PML) is a rare, debilitating and often fatal disease of the CNS caused by JC virus (JCV). JCV establishes asymptomatic, lifelong persistent or latent infection in immune competent hosts, but impairment of cellular immunity can lead to reactivation of JCV and PML. PML most commonly occurs in patients with HIV infection or lymphoproliferative disease and in patients who are receiving natalizumab for treatment of multiple sclerosis. The clinical phenotype of PML varies and is shaped primarily by the host immune response; changes in the treatment of underlying diseases associated with PML have changed phenotypes over time. Other clinical manifestations of JCV infection have been described, including granule cell neuronopathy. Survival of PML depends on reversal of the underlying immunosuppression; emerging immunotherapeutic strategies include use of checkpoint inhibitors and adoptive T cell transfer.
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Affiliation(s)
- Irene Cortese
- Neuroimmunology Clinic, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD, USA.
| | - Daniel S Reich
- Translational Neuroradiology Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD, USA
| | - Avindra Nath
- Section of Infections of the Nervous System, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD, USA
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Möhn N, Luo Y, Skripuletz T, Schwenkenbecher P, Ladwig A, Warnke C, Meuth SG, Wiendl H, Gross CC, Schröder C, Haghikia A, Stangel M. Cerebrospinal fluid analysis in 108 patients with progressive multifocal leukoencephalopathy. Fluids Barriers CNS 2020; 17:65. [PMID: 33109245 PMCID: PMC7590675 DOI: 10.1186/s12987-020-00227-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Accepted: 10/17/2020] [Indexed: 11/25/2022] Open
Abstract
BACKGROUND Progressive multifocal leukoencephalopathy (PML) is caused by an opportunistic infection with JC polyoma virus (JCPyV) and mainly affects immunocompromised patients. It leads to pronounced demyelination of the central nervous system (CNS) resulting in severe disability or even death. Detection of JCPyV DNA in the cerebrospinal fluid (CSF) is usually accepted as proof for the diagnosis of PML. Routine CSF parameters, like CSF cell count, protein concentration, Qalbumin, or intrathecal immunoglobulin synthesis are mostly considered normal. However, this has not been investigated systematically. METHODS We analyzed routine CSF parameters in a cohort of 108 PML patients that were treated at four different neurological centers in Germany. The patients exhibited different underlying conditions with natalizumab-treated multiple sclerosis (n = 54) and human immunodeficiency virus (HIV)-infection (n = 25) being the most frequent. The data were collected at the respective centers in accordance with local requirements and then jointly analyzed. The total PML cohort was compared with a control group of patients with normal pressure hydrocephalus (NPH) and idiopathic intracranial hypertension (IIH). Multiple sclerosis and HIV patients were additionally compared with their own non-PML control groups. RESULTS The PML group showed an elevated cell count (p < 0.001) compared to the control group, however, this effect was mainly driven by HIV-PML patients. This subgroup also demonstrated a significantly higher proportion of patients with a disturbed blood-CSF-barrier function. CONCLUSIONS This comprehensive, retrospective study on CSF diagnostic analysis in PML patients provides insight into the CSF of those patients. It demonstrates that CSF composition in PML patients may be specific for the underlying condition that predisposes for the development of PML and thus data have to be interpreted in this context.
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Affiliation(s)
- Nora Möhn
- Clinical Neuroimmunology and Neurochemistry, Department of Neurology, Hannover Medical School, Carl-Neuberg-Str. 1, 30625, Hannover, Germany
| | - Yi Luo
- Clinical Neuroimmunology and Neurochemistry, Department of Neurology, Hannover Medical School, Carl-Neuberg-Str. 1, 30625, Hannover, Germany
| | - Thomas Skripuletz
- Clinical Neuroimmunology and Neurochemistry, Department of Neurology, Hannover Medical School, Carl-Neuberg-Str. 1, 30625, Hannover, Germany
| | - Philipp Schwenkenbecher
- Clinical Neuroimmunology and Neurochemistry, Department of Neurology, Hannover Medical School, Carl-Neuberg-Str. 1, 30625, Hannover, Germany
| | - Anne Ladwig
- Department of Neurology, University of Cologne, Faculty of Medicine and University Hospital Cologne, Cologne, Germany
| | - Clemens Warnke
- Department of Neurology, University of Cologne, Faculty of Medicine and University Hospital Cologne, Cologne, Germany
| | - Sven G Meuth
- Department of Neurology with Institute of Translational Neurology, University Hospital Münster, Münster, Germany
| | - Heinz Wiendl
- Department of Neurology with Institute of Translational Neurology, University Hospital Münster, Münster, Germany
| | - Catharina C Gross
- Department of Neurology with Institute of Translational Neurology, University Hospital Münster, Münster, Germany
| | - Christoph Schröder
- Department of Neurology, Ruhr-University Bochum, St. Josef-Hospital Bochum, Bochum, Germany
| | - Aiden Haghikia
- Department of Neurology, Ruhr-University Bochum, St. Josef-Hospital Bochum, Bochum, Germany
| | - Martin Stangel
- Clinical Neuroimmunology and Neurochemistry, Department of Neurology, Hannover Medical School, Carl-Neuberg-Str. 1, 30625, Hannover, Germany.
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Holmes A, Wellings T, Walsh O, Rowlings P. Progressive multifocal leukoencephalopathy associated with a lymphoproliferative disorder treated with pembrolizumab. J Neurovirol 2020; 26:961-963. [DOI: 10.1007/s13365-020-00899-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Revised: 08/14/2020] [Accepted: 08/21/2020] [Indexed: 10/23/2022]
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Fifty Years of JC Polyomavirus: A Brief Overview and Remaining Questions. Viruses 2020; 12:v12090969. [PMID: 32882975 PMCID: PMC7552028 DOI: 10.3390/v12090969] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Revised: 08/28/2020] [Accepted: 08/30/2020] [Indexed: 12/11/2022] Open
Abstract
In the fifty years since the discovery of JC polyomavirus (JCPyV), the body of research representing our collective knowledge on this virus has grown substantially. As the causative agent of progressive multifocal leukoencephalopathy (PML), an often fatal central nervous system disease, JCPyV remains enigmatic in its ability to live a dual lifestyle. In most individuals, JCPyV reproduces benignly in renal tissues, but in a subset of immunocompromised individuals, JCPyV undergoes rearrangement and begins lytic infection of the central nervous system, subsequently becoming highly debilitating-and in many cases, deadly. Understanding the mechanisms allowing this process to occur is vital to the development of new and more effective diagnosis and treatment options for those at risk of developing PML. Here, we discuss the current state of affairs with regards to JCPyV and PML; first summarizing the history of PML as a disease and then discussing current treatment options and the viral biology of JCPyV as we understand it. We highlight the foundational research published in recent years on PML and JCPyV and attempt to outline which next steps are most necessary to reduce the disease burden of PML in populations at risk.
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Gonzalez Caldito N, Loeb JS, Okuda DT. Neuroimaging Insights Into Early Stages of HIV-Progressive Multifocal Leukoencephalopathy: A Case Report. J Cent Nerv Syst Dis 2020; 12:1179573520939339. [PMID: 32684750 PMCID: PMC7343350 DOI: 10.1177/1179573520939339] [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] [Received: 03/11/2020] [Accepted: 06/01/2020] [Indexed: 12/02/2022] Open
Abstract
This report aims to enhance the understanding of early longitudinal neuroimaging features of progressive multifocal leukoencephalopathy (PML) in human immunodeficiency virus (HIV). Neuroimaging has become crucial in the diagnosis and early recognition of PML. Recognition of magnetic resonance imaging (MRI) features in the early stages of PML is paramount to avoid misdiagnosis and facilitate the delivery of treatments aimed at reducing disease progression. A 49-year-old white man with HIV presented with 4-month progressive left-sided weakness. Neurological examination revealed mild cognitive impairment, left-sided hemiparesis, and somatosense impairment to all modalities. Brain MRI revealed a punctate pattern with innumerable T2-FLAIR (fluid attenuated inversion recovery) hyperintensities in the cortex, brainstem, cerebellum, subcortical, and periventricular areas. Susceptibility-weighted imaging (SWI) revealed hypointensities involving subcortical U-fibers and cortical architecture. A comprehensive diagnostic evaluation was inconclusive. John Cunningham virus (JCV) PCR in cerebrospinal fluid (CSF) was indeterminate. He was started on antiretroviral therapy. Repeat brain MRI performed 1.5 months later, in the setting of further neurological decline, demonstrated progression of the T2-hyperintensities into a large confluent white matter lesion in the right frontoparietal lobe. Despite an indeterminate JCV PCR, the appearance and characteristic progression of the lesions in successive imaging in the setting of severe immunosuppression, with extensive negative infectious workup, was indicative of PML. This clinical experience illustrates unique neuroimaging features of HIV-PML in early stages and its progression over time. It especially highlights the relevance of the SWI sequence in the diagnosis and features observed with disease evolution. Short-term imaging follow-up may assist with the recognition of MRI features consistent with the biology of the infection.
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Affiliation(s)
- Natalia Gonzalez Caldito
- Department of Neurology & Neurotherapeutics, The University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - J Scott Loeb
- Department of Neurology & Neurotherapeutics, The University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Darin T Okuda
- Department of Neurology & Neurotherapeutics, The University of Texas Southwestern Medical Center, Dallas, TX, USA
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Harypursat V, Zhou Y, Tang S, Chen Y. JC Polyomavirus, progressive multifocal leukoencephalopathy and immune reconstitution inflammatory syndrome: a review. AIDS Res Ther 2020; 17:37. [PMID: 32631361 PMCID: PMC7338111 DOI: 10.1186/s12981-020-00293-0] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Accepted: 06/29/2020] [Indexed: 01/15/2023] Open
Abstract
The human neurotropic virus JC Polyomavirus, a member of the Polyomaviridae family, is the opportunistic infectious agent causing progressive multifocal leukoencephalopathy, typically in immunocompromised individuals. The spectrum of underlying reasons for the systemic immunosuppression that permits JCV infection in the central nervous system has evolved over the past 2 decades, and therapeutic immunosuppression arousing JCV infection in the brain has become increasingly prominent as a trigger for PML. Effective immune restoration subsequent to human immunodeficiency virus-related suppression is now recognized as a cause for unexpected deterioration of symptoms in patients with PML, secondary to a rebound inflammatory phenomenon called immune reconstitution inflammatory syndrome, resulting in significantly increased morbidity and mortality in a disease already infamous for its lethality. This review addresses current knowledge regarding JC Polyomavirus, progressive multifocal leukoencephalopathy, progressive multifocal leukoencephalopathy-related immune reconstitution inflammatory syndrome, and the immunocompromised states that incite JC Polyomavirus central nervous system infection, and discusses prospects for the future management of these conditions.
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Affiliation(s)
- Vijay Harypursat
- Division of Infectious Diseases, Chongqing Public Health Medical Center, 109 Baoyu Road, Geleshan Town, Shapingba District, Chongqing, 400036, People's Republic of China
| | - Yihong Zhou
- Division of Infectious Diseases, Chongqing Public Health Medical Center, 109 Baoyu Road, Geleshan Town, Shapingba District, Chongqing, 400036, People's Republic of China
| | - Shengquan Tang
- Division of Infectious Diseases, Chongqing Public Health Medical Center, 109 Baoyu Road, Geleshan Town, Shapingba District, Chongqing, 400036, People's Republic of China
| | - Yaokai Chen
- Division of Infectious Diseases, Chongqing Public Health Medical Center, 109 Baoyu Road, Geleshan Town, Shapingba District, Chongqing, 400036, People's Republic of China.
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Dunham SR, Schmidt R, Clifford DB. Treatment of Progressive Multifocal Leukoencephalopathy Using Immune Restoration. Neurotherapeutics 2020; 17:955-965. [PMID: 32166631 PMCID: PMC7641288 DOI: 10.1007/s13311-020-00848-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Progressive multifocal leukoencephalopathy (PML) is a viral disease of the brain associated with immunodeficiency, immune suppressing medications, and malignancy. In the absence of effective anti-viral therapy for the causative JC virus, immune restoration has emerged as the critical therapeutic alternative. The evolving treatment of PML (and other rare JC virus-associated neurologic syndromes) requires consideration of baseline immune functioning and comorbid diseases while selecting from a number of therapeutic options to restore an effective immune response. This review focuses on the current options for management of PML in typical situations where this disease presents, including several where immune restoration is a standard therapeutic approach such as in PML associated with HIV/AIDS and in multiple sclerosis associated with natalizumab. Other circumstances in which PML occurs including associated with primary immunodeficiencies, malignancies, and transplants present greater challenges to immune reconstitution, but emerging concepts may enhance therapeutic options for these situations. Particular attention is focused on recent experience with checkpoint inhibitors, guidance for MS drug discontinuation, and strategies to monitor and facilitate immune restoration.
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Affiliation(s)
- S Richard Dunham
- Department of Neurology, Washington University in St Louis, St. Louis, MO, USA
| | - Robert Schmidt
- Department of Pathology & Immunology, Washington University in St Louis, St. Louis, MO, USA
| | - David B Clifford
- Department of Neurology, Washington University in St Louis, St. Louis, MO, USA.
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Eis PS, Bruno CD, Richmond TA, Koralnik IJ, Hanson BA, Major EO, Chow CR, Hendel-Chavez H, Stankoff B, Gasnault J, Taoufik Y, Hatchwell E. Germline Genetic Risk Variants for Progressive Multifocal Leukoencephalopathy. Front Neurol 2020; 11:186. [PMID: 32256442 PMCID: PMC7094807 DOI: 10.3389/fneur.2020.00186] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Accepted: 02/27/2020] [Indexed: 12/18/2022] Open
Abstract
Progressive multifocal leukoencephalopathy (PML) is a rare demyelinating disorder of the brain caused by reactivation of the JC virus (JCV), a polyomavirus that infects at least 60% of the population but is asymptomatic or results in benign symptoms in most people. PML occurs as a secondary disease in a variety of disorders or as a serious adverse event from immunosuppressant agents, but is mainly found in three groups: HIV-infected patients, patients with hematological malignancies, or multiple sclerosis (MS) patients on the immunosuppressant therapy natalizumab. It is severely debilitating and is deadly in ~50% HIV cases, ~90% of hematological malignancy cases, and ~24% of MS-natalizumab cases. A PML risk prediction test would have clinical utility in all at risk patient groups but would be particularly beneficial in patients considering therapy with immunosuppressant agents known to cause PML, such as natalizumab, rituximab, and others. While a JC antibody test is currently used in the clinical decision process for natalizumab, it is suboptimal because of its low specificity and requirement to periodically retest patients for seroconversion or to assess if a patient's JCV index has increased. Whereas a high specificity genetic risk prediction test comprising host genetic risk variants (i.e., germline variants occurring at higher frequency in PML patients compared to the general population) could be administered one time to provide clinicians with additional risk prediction information that is independent of JCV serostatus. Prior PML case reports support the hypothesis that PML risk is greater in patients with a genetically caused immunodeficiency disorder. To identify germline PML risk variants, we performed exome sequencing on 185 PML cases (70 in a discovery cohort and 115 in a replication cohort) and used the gnomAD variant database for interpretation. Our study yielded 19 rare variants (maximum allele frequency of 0.02 in gnomAD ethnically matched populations) that impact 17 immune function genes (10 are known to cause inborn errors of immunity). Modeling of these variants in a PML genetic risk test for MS patients considering natalizumab treatment indicates that at least a quarter of PML cases may be preventable.
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Affiliation(s)
- Peggy S Eis
- Population Bio, Inc., New York, NY, United States
| | | | - Todd A Richmond
- Richmond Bioinformatics Consulting, Seattle, WA, United States
| | - Igor J Koralnik
- Department of Neurology, Feinberg School of Medicine, Northwestern University, Chicago, IL, United States
| | - Barbara A Hanson
- Department of Neurology, Feinberg School of Medicine, Northwestern University, Chicago, IL, United States
| | - Eugene O Major
- Laboratory of Molecular Medicine and Neuroscience, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD, United States
| | | | - Houria Hendel-Chavez
- Department of Hematology and Immunology, Hôpitaux Universitaires Paris-Sud, INSERM 1184, Faculté de Médecine Paris-Sud, Le Kremlin-Bicêtre, France
| | - Bruno Stankoff
- Department of Neurology, Hôpital Saint-Antoine, Paris, France
| | - Jacques Gasnault
- Department of Internal Medicine, Hôpitaux Universitaires Paris-Sud, Le Kremlin-Bicêtre, France
| | - Yassine Taoufik
- Department of Hematology and Immunology, Hôpitaux Universitaires Paris-Sud, INSERM 1184, Faculté de Médecine Paris-Sud, Le Kremlin-Bicêtre, France
| | - Eli Hatchwell
- Population Bio UK, Inc., Oxfordshire, United Kingdom
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Berger JR. PD-1 inhibition: a novel approach to the treatment of progressive multifocal leukoencephalopathy. ANNALS OF TRANSLATIONAL MEDICINE 2019; 7:S281. [PMID: 32016000 DOI: 10.21037/atm.2019.11.107] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Joseph R Berger
- Department of Neurology, Perelman School of Medicine, University of Pennsylvania, Perelman Center for Advanced Medicine, Philadelphia, PA, USA
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Dalmau J. Learning from adverse treatment effects. NEUROLOGY - NEUROIMMUNOLOGY NEUROINFLAMMATION 2019; 6:e630. [PMID: 31659124 PMCID: PMC6865848 DOI: 10.1212/nxi.0000000000000630] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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