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Bernard-Valnet R, Moisset X, Maubeuge N, Lefebvre M, Ouallet JC, Roumier M, Lebrun-Frenay C, Ciron J, Biotti D, Clavelou P, Godeau B, Du Pasquier RA, Martin-Blondel G. CCR5 Blockade in Inflammatory PML and PML-IRIS Associated With Chronic Inflammatory Diseases' Treatments. NEUROLOGY-NEUROIMMUNOLOGY & NEUROINFLAMMATION 2021; 9:9/1/e1097. [PMID: 34728496 PMCID: PMC8564863 DOI: 10.1212/nxi.0000000000001097] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Accepted: 09/09/2021] [Indexed: 12/02/2022]
Abstract
Background and Objectives Progressive multifocal leukoencephalopathy (PML) is a disabling neurologic disorder resulting from the infection of the CNS by JC polyomavirus in immunocompromised individuals. For the last 2 decades, increasing use of immunotherapies leads to iatrogenic PML. Iatrogenic PML is often associated with signs of inflammation at onset (inflammatory PML) and/or after treatment withdrawal immune reconstitution inflammatory syndrome (PML-IRIS). Although immune reconstitution is a key element for viral clearance, it may also be harmful and induce clinical worsening. A C-C chemokine receptor type 5 (CCR5) antagonist (maraviroc) has been proposed to prevent and/or limit the deleterious immune responses underlying PML-IRIS. However, the data to support its use remain scarce and disputed. Methods We conducted a multicenter retrospective cohort study at 8 university hospitals in France and Switzerland by collecting clinical, biological, and radiologic data of patients who developed inflammatory PML (iPML) or PML-IRIS related to immunosuppressive therapies used for chronic inflammatory diseases between 2010 and 2020. We added to this cohort, a meta-analysis of individual case reports of patients with iPML/PML-IRIS treated with maraviroc published up to 2021. Results Overall, 27 cases were identified in the cohort and 9 from the literature. Among them, 27 met the inclusion criteria: 16 treated with maraviroc and 11 with standard of care (including corticosteroids use). Most cases were related to MS (92.6%) and natalizumab (88%). Inflammatory features (iPML) were present at onset in 12 patients (44.4%), and most patients (92.6%) received corticosteroids within the course of PML. Aggravation due to PML-IRIS was not prevented by maraviroc compared with patients who received only corticosteroids (adjusted odds ratio: 0.408, 95% CI: 0.06–2.63). Similarly, maraviroc did not influence time to clinical worsening due to PML-IRIS (adjusted hazard ratio = 0.529, 95% CI: 0.14–2.0) or disability at the last follow-up (adjusted odds ratio: 2, 95% CI: 0.23–17.3). Discussion The use of CCR5 blockade did not help to keep deleterious immune reconstitution in check even when associated with corticosteroids. Despite maraviroc's reassuring safety profile, this study does not support its use in iPML/PML-IRIS. Classification of Evidence This study provides Class IV evidence showing that adding maraviroc to the management of iatrogenic iPML/PML-IRIS does not improve the outcome.
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Affiliation(s)
- Raphael Bernard-Valnet
- From the Service of Neurology (R.B.-V., R.A.D.P.), Department of Clinical Neurosciences, Lausanne University Hospital (Centre Hospitalier Universitaire Vaudois) and Lausanne University, Switzerland; Université Clermont Auvergne (X.M., P.C.), CHU de Clermont-Ferrand, Inserm, Neuro-Dol, ; Department of Neurology (N.M.), CHU de Poitiers, Hôpital La Milétrie; Department of Infectious Diseases (M.L., G.M.-B.), Toulouse University Hospital; Service de Neurologie, Pôle des Neurosciences Cliniques (J.-C.O.), CHU de Bordeaux Pellegrin Tripode; Service de Médecine Interne (M.R., B.G.), CHU Henri Mondor, Créteil; CRCSEP Nice (C.L.-F.), CHU de Nice, Université Nice Côte D'Azur, UR2CA-URRIS, Neurologie Pasteur 2; Department of Neurosciences (J.C.,D.B.), Toulouse University Hospital, France.
| | - Xavier Moisset
- From the Service of Neurology (R.B.-V., R.A.D.P.), Department of Clinical Neurosciences, Lausanne University Hospital (Centre Hospitalier Universitaire Vaudois) and Lausanne University, Switzerland; Université Clermont Auvergne (X.M., P.C.), CHU de Clermont-Ferrand, Inserm, Neuro-Dol, ; Department of Neurology (N.M.), CHU de Poitiers, Hôpital La Milétrie; Department of Infectious Diseases (M.L., G.M.-B.), Toulouse University Hospital; Service de Neurologie, Pôle des Neurosciences Cliniques (J.-C.O.), CHU de Bordeaux Pellegrin Tripode; Service de Médecine Interne (M.R., B.G.), CHU Henri Mondor, Créteil; CRCSEP Nice (C.L.-F.), CHU de Nice, Université Nice Côte D'Azur, UR2CA-URRIS, Neurologie Pasteur 2; Department of Neurosciences (J.C.,D.B.), Toulouse University Hospital, France
| | - Nicolas Maubeuge
- From the Service of Neurology (R.B.-V., R.A.D.P.), Department of Clinical Neurosciences, Lausanne University Hospital (Centre Hospitalier Universitaire Vaudois) and Lausanne University, Switzerland; Université Clermont Auvergne (X.M., P.C.), CHU de Clermont-Ferrand, Inserm, Neuro-Dol, ; Department of Neurology (N.M.), CHU de Poitiers, Hôpital La Milétrie; Department of Infectious Diseases (M.L., G.M.-B.), Toulouse University Hospital; Service de Neurologie, Pôle des Neurosciences Cliniques (J.-C.O.), CHU de Bordeaux Pellegrin Tripode; Service de Médecine Interne (M.R., B.G.), CHU Henri Mondor, Créteil; CRCSEP Nice (C.L.-F.), CHU de Nice, Université Nice Côte D'Azur, UR2CA-URRIS, Neurologie Pasteur 2; Department of Neurosciences (J.C.,D.B.), Toulouse University Hospital, France
| | - Mathilde Lefebvre
- From the Service of Neurology (R.B.-V., R.A.D.P.), Department of Clinical Neurosciences, Lausanne University Hospital (Centre Hospitalier Universitaire Vaudois) and Lausanne University, Switzerland; Université Clermont Auvergne (X.M., P.C.), CHU de Clermont-Ferrand, Inserm, Neuro-Dol, ; Department of Neurology (N.M.), CHU de Poitiers, Hôpital La Milétrie; Department of Infectious Diseases (M.L., G.M.-B.), Toulouse University Hospital; Service de Neurologie, Pôle des Neurosciences Cliniques (J.-C.O.), CHU de Bordeaux Pellegrin Tripode; Service de Médecine Interne (M.R., B.G.), CHU Henri Mondor, Créteil; CRCSEP Nice (C.L.-F.), CHU de Nice, Université Nice Côte D'Azur, UR2CA-URRIS, Neurologie Pasteur 2; Department of Neurosciences (J.C.,D.B.), Toulouse University Hospital, France
| | - Jean-Christophe Ouallet
- From the Service of Neurology (R.B.-V., R.A.D.P.), Department of Clinical Neurosciences, Lausanne University Hospital (Centre Hospitalier Universitaire Vaudois) and Lausanne University, Switzerland; Université Clermont Auvergne (X.M., P.C.), CHU de Clermont-Ferrand, Inserm, Neuro-Dol, ; Department of Neurology (N.M.), CHU de Poitiers, Hôpital La Milétrie; Department of Infectious Diseases (M.L., G.M.-B.), Toulouse University Hospital; Service de Neurologie, Pôle des Neurosciences Cliniques (J.-C.O.), CHU de Bordeaux Pellegrin Tripode; Service de Médecine Interne (M.R., B.G.), CHU Henri Mondor, Créteil; CRCSEP Nice (C.L.-F.), CHU de Nice, Université Nice Côte D'Azur, UR2CA-URRIS, Neurologie Pasteur 2; Department of Neurosciences (J.C.,D.B.), Toulouse University Hospital, France
| | - Mathilde Roumier
- From the Service of Neurology (R.B.-V., R.A.D.P.), Department of Clinical Neurosciences, Lausanne University Hospital (Centre Hospitalier Universitaire Vaudois) and Lausanne University, Switzerland; Université Clermont Auvergne (X.M., P.C.), CHU de Clermont-Ferrand, Inserm, Neuro-Dol, ; Department of Neurology (N.M.), CHU de Poitiers, Hôpital La Milétrie; Department of Infectious Diseases (M.L., G.M.-B.), Toulouse University Hospital; Service de Neurologie, Pôle des Neurosciences Cliniques (J.-C.O.), CHU de Bordeaux Pellegrin Tripode; Service de Médecine Interne (M.R., B.G.), CHU Henri Mondor, Créteil; CRCSEP Nice (C.L.-F.), CHU de Nice, Université Nice Côte D'Azur, UR2CA-URRIS, Neurologie Pasteur 2; Department of Neurosciences (J.C.,D.B.), Toulouse University Hospital, France
| | - Christine Lebrun-Frenay
- From the Service of Neurology (R.B.-V., R.A.D.P.), Department of Clinical Neurosciences, Lausanne University Hospital (Centre Hospitalier Universitaire Vaudois) and Lausanne University, Switzerland; Université Clermont Auvergne (X.M., P.C.), CHU de Clermont-Ferrand, Inserm, Neuro-Dol, ; Department of Neurology (N.M.), CHU de Poitiers, Hôpital La Milétrie; Department of Infectious Diseases (M.L., G.M.-B.), Toulouse University Hospital; Service de Neurologie, Pôle des Neurosciences Cliniques (J.-C.O.), CHU de Bordeaux Pellegrin Tripode; Service de Médecine Interne (M.R., B.G.), CHU Henri Mondor, Créteil; CRCSEP Nice (C.L.-F.), CHU de Nice, Université Nice Côte D'Azur, UR2CA-URRIS, Neurologie Pasteur 2; Department of Neurosciences (J.C.,D.B.), Toulouse University Hospital, France
| | - Jonathan Ciron
- From the Service of Neurology (R.B.-V., R.A.D.P.), Department of Clinical Neurosciences, Lausanne University Hospital (Centre Hospitalier Universitaire Vaudois) and Lausanne University, Switzerland; Université Clermont Auvergne (X.M., P.C.), CHU de Clermont-Ferrand, Inserm, Neuro-Dol, ; Department of Neurology (N.M.), CHU de Poitiers, Hôpital La Milétrie; Department of Infectious Diseases (M.L., G.M.-B.), Toulouse University Hospital; Service de Neurologie, Pôle des Neurosciences Cliniques (J.-C.O.), CHU de Bordeaux Pellegrin Tripode; Service de Médecine Interne (M.R., B.G.), CHU Henri Mondor, Créteil; CRCSEP Nice (C.L.-F.), CHU de Nice, Université Nice Côte D'Azur, UR2CA-URRIS, Neurologie Pasteur 2; Department of Neurosciences (J.C.,D.B.), Toulouse University Hospital, France
| | - Damien Biotti
- From the Service of Neurology (R.B.-V., R.A.D.P.), Department of Clinical Neurosciences, Lausanne University Hospital (Centre Hospitalier Universitaire Vaudois) and Lausanne University, Switzerland; Université Clermont Auvergne (X.M., P.C.), CHU de Clermont-Ferrand, Inserm, Neuro-Dol, ; Department of Neurology (N.M.), CHU de Poitiers, Hôpital La Milétrie; Department of Infectious Diseases (M.L., G.M.-B.), Toulouse University Hospital; Service de Neurologie, Pôle des Neurosciences Cliniques (J.-C.O.), CHU de Bordeaux Pellegrin Tripode; Service de Médecine Interne (M.R., B.G.), CHU Henri Mondor, Créteil; CRCSEP Nice (C.L.-F.), CHU de Nice, Université Nice Côte D'Azur, UR2CA-URRIS, Neurologie Pasteur 2; Department of Neurosciences (J.C.,D.B.), Toulouse University Hospital, France
| | - Pierre Clavelou
- From the Service of Neurology (R.B.-V., R.A.D.P.), Department of Clinical Neurosciences, Lausanne University Hospital (Centre Hospitalier Universitaire Vaudois) and Lausanne University, Switzerland; Université Clermont Auvergne (X.M., P.C.), CHU de Clermont-Ferrand, Inserm, Neuro-Dol, ; Department of Neurology (N.M.), CHU de Poitiers, Hôpital La Milétrie; Department of Infectious Diseases (M.L., G.M.-B.), Toulouse University Hospital; Service de Neurologie, Pôle des Neurosciences Cliniques (J.-C.O.), CHU de Bordeaux Pellegrin Tripode; Service de Médecine Interne (M.R., B.G.), CHU Henri Mondor, Créteil; CRCSEP Nice (C.L.-F.), CHU de Nice, Université Nice Côte D'Azur, UR2CA-URRIS, Neurologie Pasteur 2; Department of Neurosciences (J.C.,D.B.), Toulouse University Hospital, France
| | - Bertrand Godeau
- From the Service of Neurology (R.B.-V., R.A.D.P.), Department of Clinical Neurosciences, Lausanne University Hospital (Centre Hospitalier Universitaire Vaudois) and Lausanne University, Switzerland; Université Clermont Auvergne (X.M., P.C.), CHU de Clermont-Ferrand, Inserm, Neuro-Dol, ; Department of Neurology (N.M.), CHU de Poitiers, Hôpital La Milétrie; Department of Infectious Diseases (M.L., G.M.-B.), Toulouse University Hospital; Service de Neurologie, Pôle des Neurosciences Cliniques (J.-C.O.), CHU de Bordeaux Pellegrin Tripode; Service de Médecine Interne (M.R., B.G.), CHU Henri Mondor, Créteil; CRCSEP Nice (C.L.-F.), CHU de Nice, Université Nice Côte D'Azur, UR2CA-URRIS, Neurologie Pasteur 2; Department of Neurosciences (J.C.,D.B.), Toulouse University Hospital, France
| | - Renaud A Du Pasquier
- From the Service of Neurology (R.B.-V., R.A.D.P.), Department of Clinical Neurosciences, Lausanne University Hospital (Centre Hospitalier Universitaire Vaudois) and Lausanne University, Switzerland; Université Clermont Auvergne (X.M., P.C.), CHU de Clermont-Ferrand, Inserm, Neuro-Dol, ; Department of Neurology (N.M.), CHU de Poitiers, Hôpital La Milétrie; Department of Infectious Diseases (M.L., G.M.-B.), Toulouse University Hospital; Service de Neurologie, Pôle des Neurosciences Cliniques (J.-C.O.), CHU de Bordeaux Pellegrin Tripode; Service de Médecine Interne (M.R., B.G.), CHU Henri Mondor, Créteil; CRCSEP Nice (C.L.-F.), CHU de Nice, Université Nice Côte D'Azur, UR2CA-URRIS, Neurologie Pasteur 2; Department of Neurosciences (J.C.,D.B.), Toulouse University Hospital, France
| | - Guillaume Martin-Blondel
- From the Service of Neurology (R.B.-V., R.A.D.P.), Department of Clinical Neurosciences, Lausanne University Hospital (Centre Hospitalier Universitaire Vaudois) and Lausanne University, Switzerland; Université Clermont Auvergne (X.M., P.C.), CHU de Clermont-Ferrand, Inserm, Neuro-Dol, ; Department of Neurology (N.M.), CHU de Poitiers, Hôpital La Milétrie; Department of Infectious Diseases (M.L., G.M.-B.), Toulouse University Hospital; Service de Neurologie, Pôle des Neurosciences Cliniques (J.-C.O.), CHU de Bordeaux Pellegrin Tripode; Service de Médecine Interne (M.R., B.G.), CHU Henri Mondor, Créteil; CRCSEP Nice (C.L.-F.), CHU de Nice, Université Nice Côte D'Azur, UR2CA-URRIS, Neurologie Pasteur 2; Department of Neurosciences (J.C.,D.B.), Toulouse University Hospital, France
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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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Graf LM, Rosenkranz SC, Hölzemer A, Hagel C, Goebell E, Jordan S, Friese MA, Addo MM, Schulze Zur Wiesch J, Beisel C. Clinical Presentation and Disease Course of 37 Consecutive Cases of Progressive Multifocal Leukoencephalopathy (PML) at a German Tertiary-Care Hospital: A Retrospective Observational Study. Front Neurol 2021; 12:632535. [PMID: 33613439 PMCID: PMC7890249 DOI: 10.3389/fneur.2021.632535] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Accepted: 01/04/2021] [Indexed: 01/27/2023] Open
Abstract
Background: Progressive multifocal leukoencephalopathy (PML) caused by JCV is a rare but frequently fatal disease of the central nervous system, usually affecting immunocompromised individuals. Our study aims to expand the data on patient characteristics, diagnosis, clinical course, possible PML-directed treatment, and outcome of patients with PML at a German tertiary-care hospital. Methods:In this single-center observational cohort study, 37 consecutive patients with a confirmed diagnosis of PML seen at the University Medical Center Hamburg-Eppendorf from 2013 until 2019 were retrospectively analyzed by chart review with a special focus on demographics, risk factors, and clinical aspects as well as PML-directed treatment and survival. Results:We identified 37 patients with definite, probable, and possible PML diagnosis. 36 patients (97%) had underlying immunosuppressive disorders such as HIV/AIDS (n = 17; 46%), previous treatment with monoclonal antibodies (n = 6; 16%), hematological or oncological malignancies (n = 6; 16%), sarcoidosis (n = 5; 14%), solid organ transplantation (n = 1; 3%), and diagnosis of mixed connective tissue disease (n = 1; 3%). In only one patient no evident immunocompromised condition was detected (n = 1; 3%). Treatment attempts to improve the outcome of PML were reported in 13 patients (n = 13; 35%). Twenty seven percent of patients were lost to follow-up (n = 10). Twenty four-month survival rate after diagnosis of PML was 56% (n = 15). Conclusion: This interdisciplinary retrospective study describes epidemiology, risk factors, clinical course, and treatment trials in patients with PML at a German tertiary-care hospital. Acquired immunosuppression due to HIV-1 constituted the leading cause of PML in this monocenter cohort.
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Affiliation(s)
- Lisa M Graf
- Division of Infectious Disease, I. Department of Internal Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Sina C Rosenkranz
- Institute of Neuroimmunology and Multiple Sclerosis, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.,Department of Neurology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Angelique Hölzemer
- Division of Infectious Disease, I. Department of Internal Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.,German Center for Infection Research (DZIF), Partner Site Hamburg-Lübeck-Borstel-Riems, Hamburg, Germany.,Heinrich Pette Institute, Leibniz Institute for Experimental Virology, Hamburg, Germany
| | - Christian Hagel
- Institute of Neuropathology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Einar Goebell
- Department of Diagnostic and Interventional Neuroradiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Sabine Jordan
- Division of Infectious Disease, I. Department of Internal Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.,Department of Tropical Medicine, Bernhard Nocht Institute for Tropical Medicine, Hamburg, Germany
| | - Manuel A Friese
- Institute of Neuroimmunology and Multiple Sclerosis, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Marylyn M Addo
- Division of Infectious Disease, I. Department of Internal Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.,German Center for Infection Research (DZIF), Partner Site Hamburg-Lübeck-Borstel-Riems, Hamburg, Germany
| | - Julian Schulze Zur Wiesch
- Division of Infectious Disease, I. Department of Internal Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.,German Center for Infection Research (DZIF), Partner Site Hamburg-Lübeck-Borstel-Riems, Hamburg, Germany
| | - Claudia Beisel
- Division of Infectious Disease, I. Department of Internal Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.,German Center for Infection Research (DZIF), Partner Site Hamburg-Lübeck-Borstel-Riems, Hamburg, Germany.,Heinrich Pette Institute, Leibniz Institute for Experimental Virology, Hamburg, Germany
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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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Kirincich J, Basic-Jukic N, Radic J, Lovric-Kujundzic S, Kastelan Z. A Kidney Transplant Recipient With Fulminant Progressive Multifocal Leukoencephalopathy-Immune Reconstitution Inflammatory Syndrome: A Rare Clinical Outcome and Review of the Literature. EXP CLIN TRANSPLANT 2019; 18:242-246. [PMID: 31580233 DOI: 10.6002/ect.2018.0227] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Progressive multifocal leukoencephalopathy is a devastating disease affecting the central nervous system that may be seen in immunocompromised patients. We present a case of a kidney transplant recipient who received tacrolimus, mycophenolic acid, and prednisone and who developed motor deficits, altered cognition, and speech abnormalities, which culminated in a coma. The diagnosis was made by detecting John Cunningham polyomavirus DNA with polymerase chain reaction and observing characteristic findings on magnetic resonance imaging. Soon after immunosuppressive therapy was withdrawn, the patient's clinical status deteriorated due to immune reconstitution inflammatory syndrome, and prednisone was administered. Unfortunately, the patient died about 9 months after onset of symptoms. This case serves to illustrate the fulminant progression of progressive multifocal leukoencephalopathy and the possible complications that may arise when treating it.
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Affiliation(s)
- Jason Kirincich
- >From the Department of Nephrology, Arterial Hypertension, Dialysis and Transplantation, University Hospital Centre Zagreb, Zagreb, Croatia
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Cevaal PM, Bekker LG, Hermans S. TB-IRIS pathogenesis and new strategies for intervention: Insights from related inflammatory disorders. Tuberculosis (Edinb) 2019; 118:101863. [PMID: 31561185 DOI: 10.1016/j.tube.2019.101863] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2019] [Revised: 09/10/2019] [Accepted: 09/12/2019] [Indexed: 12/29/2022]
Abstract
In almost one in five HIV/tuberculosis (TB) co-infected patients, initiation of antiretroviral therapy (ART) is complicated by TB immune reconstitution inflammatory syndrome (TB-IRIS). Corticosteroids have been suggested for treatment of severe cases, however no therapy is currently licensed for TB-IRIS. Hence, there is a strong need for more specific therapeutics, and therefore, a better understanding of TB-IRIS pathogenesis. Immune reconstitution following ART is a precariously balanced functional restoration of adaptive immunity. In those patients predisposed to disease, an incomplete activation of the innate immune system leads to a hyper-inflammatory response that comprises partially overlapping innate, adaptive and effector arms, eventually leading to clinical symptoms. Interestingly, many of these pathological mechanisms are shared by related inflammatory disorders. We here describe therapeutic strategies that originate from these other disciplines and discuss their potential application in TB-IRIS. These new avenues of interventions range from final-phase treatment of symptoms to early-phase prevention of disease onset. In conclusion, we propose a novel approach for the discovery and development of therapeutics, based on an updated model of TB-IRIS pathogenesis. Further experimental studies validating the causal relationships in the proposed model could greatly contribute to providing a solid immunological basis for future clinical trials on TB-IRIS therapeutics.
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Affiliation(s)
- Paula M Cevaal
- Amsterdam UMC, University of Amsterdam, Department of Global Health, Amsterdam Institute for Global Health and Development, Amsterdam Public Health Research Institute, Paasheuvelweg 25, 1105, BP Amsterdam, the Netherlands.
| | - Linda-Gail Bekker
- Desmond Tutu HIV Centre, Institute for Infectious Disease and Molecular Medicine, University of Cape Town, Anzio Rd, Observatory, 7925, Cape Town, South Africa
| | - Sabine Hermans
- Amsterdam UMC, University of Amsterdam, Department of Global Health, Amsterdam Institute for Global Health and Development, Amsterdam Public Health Research Institute, Paasheuvelweg 25, 1105, BP Amsterdam, the Netherlands; Desmond Tutu HIV Centre, Institute for Infectious Disease and Molecular Medicine, University of Cape Town, Anzio Rd, Observatory, 7925, Cape Town, South Africa
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Summers NA, Kelley CF, Armstrong W, Marconi VC, Nguyen ML. Not a Disease of the Past: A Case Series of Progressive Multifocal Leukoencephalopathy in the Established Antiretroviral Era. AIDS Res Hum Retroviruses 2019; 35:544-552. [PMID: 30834775 DOI: 10.1089/aid.2018.0232] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Progressive multifocal leukoencephalopathy (PML) and PML immune reconstitution inflammatory syndrome (PML-IRIS) can be devastating neurological processes associated with HIV, but limited knowledge of their characteristics in the established antiretroviral therapy (ART) era is available. We conducted a case series to evaluate the clinical course of PML and PML-IRIS at our urban safety-net hospital in Atlanta, GA. All HIV-positive individuals with a positive John Cunningham virus DNA polymerase chain reaction in the spinal fluid between May 1, 2013 to June 1, 2017 were identified from the electronic health records (EHRs) using the HIV Disease Registry. Demographics, symptom presentation, laboratory data, imaging results, treatment, and outcomes were abstracted from the EHR. PML and PML-IRIS were defined using the American Association of Neurology criteria. Of the 32 individuals identified, 6 (19%) were felt to have asymptomatic positive results. Of the remainder, 15 (58%) HIV-positive patients had PML and 11 (42%) PML-IRIS (2 with an unmasking presentation and 9 with a paradoxical presentation). The most common presenting symptoms were motor weakness (18, 69%), cognitive deficits (15, 58%), and dysarthria (11, 42%). Corticosteroids were used in 12 patients and maraviroc in 3 patients. Outcomes were dismal with 7 (47%) patients with PML and 9 (82%) with PML-IRIS dying or being referred to hospice, with median survival times of 266 days in the PML group and 109 days in the PML-IRIS group. Despite widespread access to ART, patients with PML continue to have poor outcomes, particularly among those who develop PML-IRIS. More research is needed to understand the risks for and prevention of PML-IRIS.
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Affiliation(s)
- Nathan A. Summers
- Department of Medicine, Division of Infectious Diseases, Emory University School of Medicine, Atlanta, Georgia
- Grady Health Systems, Atlanta, Georgia
| | - Colleen F. Kelley
- Department of Medicine, Division of Infectious Diseases, Emory University School of Medicine, Atlanta, Georgia
- Grady Health Systems, Atlanta, Georgia
- Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, Georgia
| | - Wendy Armstrong
- Department of Medicine, Division of Infectious Diseases, Emory University School of Medicine, Atlanta, Georgia
- Grady Health Systems, Atlanta, Georgia
| | - Vincent C. Marconi
- Department of Medicine, Division of Infectious Diseases, Emory University School of Medicine, Atlanta, Georgia
- Grady Health Systems, Atlanta, Georgia
- Department of Global Health, Rollins School of Public Health, Emory University, Atlanta, Georgia
| | - Minh Ly Nguyen
- Department of Medicine, Division of Infectious Diseases, Emory University School of Medicine, Atlanta, Georgia
- Grady Health Systems, Atlanta, Georgia
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Troncoso LL, Pontillo A, Oliveira EMLD, Finkelszteijn A, Schneider S, Chies JAB. CCR5Δ32 - A piece of protection in the inflammatory puzzle of multiple sclerosis susceptibility. Hum Immunol 2018; 79:621-626. [PMID: 29729320 DOI: 10.1016/j.humimm.2018.04.015] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Revised: 04/25/2018] [Accepted: 04/26/2018] [Indexed: 01/08/2023]
Abstract
BACKGROUND Leucocyte infiltration and activation in the central nervous system (CNS) is an important step in the pathogenesis of multiple sclerosis (MS). The Chemokine receptor 5 (CCR5) is implicated in immune cell migration and cytokine release in the CNS, and it was demonstrated to strongly contribute to CNS inflammation and damage in several models of sterile and pathogen-mediated CNS diseases. Although the inhibition of CCR5 results in a beneficial effect in experimental models of MS, conflicting results have been found about the loss-of-function variant CCR5Δ32 (rs333) in MS patients. The aim of this study was to evaluate the association of CCR5Δ32 and MS in a Brazilian case/control cohort. PATIENTS AND METHODS 261 MS patients and 435 healthy controls were genotyped for CCR5Δ32. Allelic and genotypic frequencies were compared between patients and controls (case/control analysis), and among patients classified according to the MS clinical form (relapsing remitting versus progressive) and severity (EDSS, MSSS and progression index). RESULTS AND DISCUSSION The CCR5Δ32 variant frequency was statistically higher in controls as compared to patients presenting European-derived ethnic background. The variant was more frequent in progressive MS as compared to RR-MS patients, and, although not statistically significant, a higher frequency of the truncated allele was observed among patients with less severe forms of MS. These findings emphasize the potential involvement of CCR5 signaling in CNS inflammation and damage in MS. CONCLUSION The CCR5Δ32 deletion is a protective factor against the development and progression of MS in European-derived Brazilian patients.
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Affiliation(s)
- Lian Lopes Troncoso
- Laboratório de Imunobiologia e Imunogenética, Programa de Pós-Graduação em Genética e Biologia Molecular, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Alessandra Pontillo
- Universidade de São Paulo, Instituto de Ciências Biomédicas, Departamento de Imunologia, São Paulo, SP, Brazil
| | - Enedina Maria Lobato de Oliveira
- Ambulatório de Doenças Desmielinizantes da disciplina de Neurologia, Escola, Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, SP, Brazil
| | | | | | - José Artur Bogo Chies
- Laboratório de Imunobiologia e Imunogenética, Programa de Pós-Graduação em Genética e Biologia Molecular, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil.
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Abstract
Progressive multifocal leukoencephalopathy (PML) is a relatively common complication of HIV disease. In this chapter changes to the epidemiology are discussed along with an update in its pathogenesis and treatment. Immune reconstitution inflammatory syndrome is increasingly frequent in PML; accordingly management strategies and prognosis are detailed.
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Affiliation(s)
- Shaun Zhai
- Department of Neurology, St. Vincent's Hospital, Sydney, NSW, Australia
| | - Bruce James Brew
- Department of Neurology, St. Vincent's Hospital, Sydney, NSW, Australia; Department of HIV Medicine and Peter Duncan Neurosciences Unit, St. Vincent's Centre for Applied Medical Research, St. Vincent's Hospital, Sydney, NSW, Australia.
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10
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Fournier A, Martin-Blondel G, Lechapt-Zalcman E, Dina J, Kazemi A, Verdon R, Mortier E, de La Blanchardière A. Immune Reconstitution Inflammatory Syndrome Unmasking or Worsening AIDS-Related Progressive Multifocal Leukoencephalopathy: A Literature Review. Front Immunol 2017; 8:577. [PMID: 28588577 PMCID: PMC5440580 DOI: 10.3389/fimmu.2017.00577] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2016] [Accepted: 05/01/2017] [Indexed: 12/26/2022] Open
Abstract
Incidence of progressive multifocal leukoencephalopathy (PML) in HIV-infected patients has declined in the combined antiretroviral therapy (cART) era although a growing number of acquired immunodeficiency syndrome (AIDS)-related PML-immune reconstitution inflammatory syndromes (PML-IRIS) have been published during the same period. Therapeutic management of PML-IRIS is not consensual and mainly relies on corticosteroids. Our main aim was, in addition to provide a thoughtful analysis of published PML-IRIS cases, to assess the benefit of corticosteroids in the management of PML-IRIS, focusing on confirmed cases. We performed a literature review of the 46 confirmed cases of PML-IRIS cases occurring in HIV-infected patients from 1998 to September 2016 (21 unmasking and 25 paradoxical PML-IRIS). AIDS-related PML-IRIS patients were mostly men (sex ratio 4/1) with a median age of 40.5 years (range 12-66). Median CD4 T cell count before cART and at PML-IRIS onset was 45/μl (0-301) and 101/μl (20-610), respectively. After cART initiation, PML-IRIS occurred within a median timescale of 38 days (18-120). Clinical signs were motor deficits (69%), speech disorders (36%), cognitive disorders (33%), cerebellar ataxia (28%), and visual disturbances (23%). Brain MRI revealed hyperintense areas on T2-weighted sequences and FLAIR images (76%) and suggestive contrast enhancement (87%). PCR for John Cunningham virus (JCV) in cerebrospinal fluid (CSF) was positive in only 84% of cases; however, when performed, brain biopsy confirmed diagnosis of PML in 90% of cases and demonstrated histological signs of IRIS in 95% of cases. Clinical worsening related to PML-IRIS and leading to death was observed in 28% of cases. Corticosteroids were prescribed in 63% of cases and maraviroc in one case. Statistical analysis failed to demonstrate significant benefit from steroid treatment, despite spectacular improvement in certain cases. Diagnosis of PML-IRIS should be considered in HIV-infected patients with worsening neurological symptoms after initiation or resumption of effective cART, independently of CD4 cell count prior to cART. If PCR for JCV is negative in CSF, brain biopsy should be discussed. Only large multicentric randomized trials could potentially demonstrate the possible efficacy of corticosteroids and/or CCR5 antagonists in the management of PML-IRIS.
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Affiliation(s)
- Anna Fournier
- Department of Infectious and Tropical Diseases, CHU Côte de Nacre, Caen, France
| | - Guillaume Martin-Blondel
- Department of Infectious and Tropical Diseases, CHU Toulouse, Toulouse, France.,INSERM U1043 - CNRS UMR 5282, Université Toulouse III, Centre de Physiopathologie Toulouse-Purpan, Toulouse, France
| | | | - Julia Dina
- Department of Virology, CHU Côte de Nacre, Caen, France
| | | | - Renaud Verdon
- Department of Infectious and Tropical Diseases, CHU Côte de Nacre, Caen, France
| | - Emmanuel Mortier
- Department of Internal Medicine, Hôpital Louis Mourier, Colombes, France
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11
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Alvarado-de la Barrera C, Reyes-Terán G. Confusion in the Study of Immune Reconstitution Inflammatory Syndrome. Pathog Immun 2017; 2:126-137. [PMID: 28736762 PMCID: PMC5519094 DOI: 10.20411/pai.v2i1.195] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
As a consequence of late presentation for HIV care, a significant proportion of individuals develop immune reconstitution inflammatory syndrome (IRIS) soon after initiation of antiretroviral therapy. Incidence, predictors, and models of pathogenesis of IRIS vary in the literature. Here we discuss factors that may contribute to this lack of consensus. We propose that different pathogens drive different types of IRIS and suggest that these clinical conditions should be studied individually and not grouped under the general heading of "IRIS."
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Affiliation(s)
- Claudia Alvarado-de la Barrera
- Departamento de Investigación en Enfermedades Infecciosas, Instituto Nacional de Enfermedades Respiratorias Ismael Cosío Villegas, Mexico City
| | - Gustavo Reyes-Terán
- Departamento de Investigación en Enfermedades Infecciosas, Instituto Nacional de Enfermedades Respiratorias Ismael Cosío Villegas, Mexico City
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12
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Steiner I, Benninger F. Maraviroc in PML-IRIS: A separate ball game under HIV infection and natalizumab? NEUROLOGY-NEUROIMMUNOLOGY & NEUROINFLAMMATION 2017; 4:e331. [PMID: 28210663 PMCID: PMC5299630 DOI: 10.1212/nxi.0000000000000331] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
- Israel Steiner
- Department of Neurology, Rabin Medical Center, Beilinson Hospital, Petach Tikva, Israel
| | - Felix Benninger
- Department of Neurology, Rabin Medical Center, Beilinson Hospital, Petach Tikva, Israel
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13
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Opportunistic Neurologic Infections in Patients with Acquired Immunodeficiency Syndrome (AIDS). Curr Neurol Neurosci Rep 2016; 16:10. [PMID: 26747443 DOI: 10.1007/s11910-015-0603-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Infections of the central nervous system (CNS) in individuals with human immunodeficiency virus (HIV) remain a substantial cause of morbidity and mortality despite the introduction of highly active antiretroviral therapy (HAART) especially in the resource-limited regions of the world. Diagnosis of these infections may be challenging because findings on cerebrospinal fluid (CSF) analysis and brain imaging are nonspecific. While brain biopsy provides a definitive diagnosis, it is an invasive procedure associated with a relatively low mortality rate, thus less invasive modalities have been studied in recent years. Diagnosis, therefore, can be established based on a combination of a compatible clinical syndrome, radiologic and CSF findings, and understanding of the role of HIV in these infections. The most common CNS opportunistic infections are AIDS-defining conditions; thus, treatment of these infections in combination with HAART has greatly improved survival.
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14
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Martin-Blondel G, Brassat D, Bauer J, Lassmann H, Liblau RS. CCR5 blockade for neuroinflammatory diseases — beyond control of HIV. Nat Rev Neurol 2016; 12:95-105. [DOI: 10.1038/nrneurol.2015.248] [Citation(s) in RCA: 82] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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15
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Loignon M, Toma E. Treatment options for progressive multifocal leukoencephalopathy in HIV-infected persons: current status and future directions. Expert Rev Anti Infect Ther 2016; 14:177-91. [PMID: 26655489 DOI: 10.1586/14787210.2016.1132162] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Progressive multifocal encephalopathy (PML) caused by JC virus was frequently encountered in AIDS patients before combination antiretroviral therapy (cART). Incidence decreased and the outcome improved with cART. The immune reconstitution with cART is beneficial for HIV-infected patients and is an effective treatment for PML. However, when it is excessive an inflammatory response immune syndrome might occur with deterioration of PML. So far, no specific therapy has proven efficacious in small clinical trials in spite of some optimistic case reports. Combination of drugs targeted at different stages of JC virus life cycle seems to have a better effect. Passive and active immune therapies, immune competence "boosters" appear promising. New future approaches such as gene editing are not far away.
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Affiliation(s)
- Maude Loignon
- a Department of Microbiology, Immunology and Infectious Diseases , University of Montreal, Succursale Centre Ville , Montreal , Quebec , Canada
| | - Emil Toma
- a Department of Microbiology, Immunology and Infectious Diseases , University of Montreal, Succursale Centre Ville , Montreal , Quebec , Canada.,b Département de microbiologie et maladies infectieuses , Hôtel-Dieu Hospital du Centre Hospitalier de l'Université de Montréal (CHUM) , Montreal , Quebec , Canada
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16
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French MA. Therapeutic CCR5 blockade illuminates IRIS pathogenesis. Lancet HIV 2015; 1:e50-1. [PMID: 26423985 DOI: 10.1016/s2352-3018(14)70005-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Affiliation(s)
- Martyn A French
- School of Pathology and Laboratory Medicine, University of Western Australia, Perth, WA 6000, Australia; Department of Clinical Immunology, Royal Perth Hospital and PathWest Laboratory Medicine, Perth, WA, Australia.
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17
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Woollard SM, Kanmogne GD. Maraviroc: a review of its use in HIV infection and beyond. DRUG DESIGN DEVELOPMENT AND THERAPY 2015; 9:5447-68. [PMID: 26491256 PMCID: PMC4598208 DOI: 10.2147/dddt.s90580] [Citation(s) in RCA: 92] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The human immunodeficiency virus-1 (HIV-1) enters target cells by binding its envelope glycoprotein gp120 to the CD4 receptor and/or coreceptors such as C-C chemokine receptor type 5 (CCR5; R5) and C-X-C chemokine receptor type 4 (CXCR4; X4), and R5-tropic viruses predominate during the early stages of infection. CCR5 antagonists bind to CCR5 to prevent viral entry. Maraviroc (MVC) is the only CCR5 antagonist currently approved by the United States Food and Drug Administration, the European Commission, Health Canada, and several other countries for the treatment of patients infected with R5-tropic HIV-1. MVC has been shown to be effective at inhibiting HIV-1 entry into cells and is well tolerated. With expanding MVC use by HIV-1-infected humans, different clinical outcomes post-approval have been observed with MVC monotherapy or combination therapy with other antiretroviral drugs, with MVC use in humans infected with dual-R5- and X4-tropic HIV-1, infected with different HIV-1 genotype or infected with HIV-2. This review discuss the role of CCR5 in HIV-1 infection, the development of the CCR5 antagonist MVC, its pharmacokinetics, pharmacodynamics, drug–drug interactions, and the implications of these interactions on treatment outcomes, including viral mutations and drug resistance, and the mechanisms associated with the development of resistance to MVC. This review also discusses available studies investigating the use of MVC in the treatment of other diseases such as cancer, graft-versus-host disease, and inflammatory diseases.
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Affiliation(s)
- Shawna M Woollard
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE, USA
| | - Georgette D Kanmogne
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE, USA
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18
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Faulkner M. Risk of progressive multifocal leukoencephalopathy in patients with multiple sclerosis. Expert Opin Drug Saf 2015; 14:1737-48. [DOI: 10.1517/14740338.2015.1093620] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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19
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Martin-Blondel G, Pignolet B, Liblau RS. [Migration and pathogenicity of CD8 T cells in central nervous system diseases]. Med Sci (Paris) 2015; 31:748-55. [PMID: 26340834 DOI: 10.1051/medsci/20153108013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The implication of CD8 T cells in infectious and inflammatory diseases of the central nervous system has received increasing attention. CD8 T cells are crucial players of the adaptive immune system against neurotropic infections, but can also trigger tissue damage. Here we review the molecular mechanisms used by CD8 T cells to migrate into the central nervous system, and describe diseases that imply CD8 T cell-mediated pathogenicity. We also suggest therapeutic strategies targeting this population.
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Affiliation(s)
- Guillaume Martin-Blondel
- Département des maladies infectieuses et tropicales, hôpital universitaire de Toulouse, France - Inserm U1043, CNRS UMR 5282, centre de physiopathologie Toulouse-Purpan, hôpital Purpan, place du Docteur Baylac, 31024 Toulouse, France - Université Toulouse III, Toulouse, F-31000, France
| | - Béatrice Pignolet
- Inserm U1043, CNRS UMR 5282, centre de physiopathologie Toulouse-Purpan, hôpital Purpan, place du Docteur Baylac, 31024 Toulouse, France - Département des neurosciences, hôpital universitaire de Toulouse, France
| | - Roland S Liblau
- Inserm U1043, CNRS UMR 5282, centre de physiopathologie Toulouse-Purpan, hôpital Purpan, place du Docteur Baylac, 31024 Toulouse, France - Université Toulouse III, Toulouse, F-31000, France
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20
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High CCR5 expression in natalizumab-associated progressive multifocal leukoencephalopathy immune reconstitution inflammatory syndrome supports treatment with the CCR5 inhibitor maraviroc. Acta Neuropathol 2015; 129:467-8. [PMID: 25604548 DOI: 10.1007/s00401-015-1391-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2014] [Revised: 01/14/2015] [Accepted: 01/14/2015] [Indexed: 10/24/2022]
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21
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Martin-Blondel G, Bauer J, Uro-Coste E, Biotti D, Averseng-Peaureaux D, Fabre N, Dumas H, Bonneville F, Lassmann H, Marchou B, Liblau RS, Brassat D. Therapeutic use of CCR5 antagonists is supported by strong expression of CCR5 on CD8(+) T cells in progressive multifocal leukoencephalopathy-associated immune reconstitution inflammatory syndrome. Acta Neuropathol 2015; 129:463-5. [PMID: 25589222 DOI: 10.1007/s00401-015-1383-6] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2014] [Revised: 12/23/2014] [Accepted: 01/06/2015] [Indexed: 10/24/2022]
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22
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Immune reconstitution disorders in patients with HIV infection: from pathogenesis to prevention and treatment. Curr HIV/AIDS Rep 2015; 11:223-32. [PMID: 24950732 DOI: 10.1007/s11904-014-0213-0] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
An immune reconstitution disorder occurs in up to 40 % of severely immunodeficient HIV patients who commence antiretroviral therapy (ART), with an immune reconstitution inflammatory syndrome (IRIS) being encountered most commonly. Differences in the immunopathogenesis of an IRIS associated with different types of pathogen have become apparent but common features have also been defined. These include severe immunodeficiency prior to commencing ART associated with a high pathogen load and 'compensatory' immune responses, particularly innate immune responses, which inadequately control the pathogen and increase the risk of immunopathology as the immune system recovers on ART. Prevention of an IRIS may be achieved by optimising therapy for opportunistic infections before ART is commenced, delaying ART or using immunomodulatory therapy to prevent or suppress the immune response that causes the immunopathology. However, further clinical studies are required to examine these options in a systematic manner for the various types of IRIS.
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23
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Maraviroc Failed to Control Progressive Multifocal Leukoencephalopathy-Associated IRIS in a Patient with Advanced HIV Infection. Case Rep Med 2014; 2014:381480. [PMID: 25587282 PMCID: PMC4284930 DOI: 10.1155/2014/381480] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2014] [Accepted: 12/11/2014] [Indexed: 01/27/2023] Open
Abstract
Due to the lack of therapeutic options for patients with progressive multifocal leukoencephalopathy-associated immune reconstitution inflammatory syndrome (PML-associated IRIS), maraviroc has generated expectations among the medical community. However, we report a patient with advanced HIV infection, who developed PML-associated IRIS and had a fatal outcome despite the addition of maraviroc to suppressive ART. Future studies are required to define the therapeutic role of maraviroc in PML-associated IRIS and differentiate individuals who may benefit from maraviroc from those who may develop neurological deterioration.
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24
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Sierra-Madero JG, Ellenberg SS, Rassool MS, Tierney A, Belaunzarán-Zamudio PF, López-Martínez A, Piñeirúa-Menéndez A, Montaner LJ, Azzoni L, Benítez CR, Sereti I, Andrade-Villanueva J, Mosqueda-Gómez JL, Rodriguez B, Sanne I, Lederman MM. Effect of the CCR5 antagonist maraviroc on the occurrence of immune reconstitution inflammatory syndrome in HIV (CADIRIS): a double-blind, randomised, placebo-controlled trial. Lancet HIV 2014; 1:e60-7. [PMID: 26423989 DOI: 10.1016/s2352-3018(14)70027-x] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
BACKGROUND Immune reconstitution inflammatory syndrome (IRIS) is a common complication of antiretroviral therapy (ART) in patients with HIV. IRIS is associated with an increased risk of admission to hospital and death. We assessed whether CCR5 blockade with maraviroc reduces the risk of IRIS. METHODS The CADIRIS study was a double-blind, randomised, placebo-controlled trial that recruited participants from five clinical sites in Mexico and one in South Africa and followed them for 1 year. Patients were eligible if they were adults with HIV, who were naive to ART, had CD4 count lower than 100 cells per μL and HIV RNA greater than 1000 copies per mL. Participants were randomly assigned (1:1) by permuted block randomisation to receive either maraviroc (600 mg twice daily) or placebo in addition to an ART regimen that included tenofovir, emtricitabine, and efavirenz for 48 weeks. Patients, care providers, and members of the research team were masked to treatment allocation. Clinical and laboratory evaluations were done at baseline, and weeks 2, 4, 8, 12, 16, 24, 48, and 60. The primary outcome was time to an IRIS event by 24 weeks. All patients who were randomly assigned contributed to the primary time-to-event analysis from the date of ART initiation until week 24, the time of an IRIS event or death. This trial is registered with ClinicalTrials.gov, number NCT00988780. FINDINGS Between Dec 10, 2009, and Jan 17, 2012, we screened 362 patients; of whom 279 met the inclusion criteria and three refused to participate; thus 276 participants were randomly assigned (140 to receive maraviroc and 136 to receive placebo). 64 (23%) patients had IRIS events, 33 (24%) in the maraviroc group and 31 (23%) in the placebo group (p=0·74). No difference in the time to IRIS events was noted between the treatment groups (HR 1·08, 95% CI 0·66-1·77; log-rank test p=0·74). 37 participants (26%) in the maraviroc group had grade 3 or 4 adverse events compared with 24 (18%) in placebo group; p=0·072); 25 (18%) in the maraviroc group and 21 (15%) in the placebo group had serious treatment emergent adverse events (p=0·63). INTERPRETATION Maraviroc had no significant effect on development of IRIS after ART initiation. Inclusion of this CCR5 inhibitor in an initial treatment regimen does not confer a meaningful protection from the occurrence of IRIS in people with advanced HIV infection. FUNDING Pfizer.
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Affiliation(s)
- Juan G Sierra-Madero
- Departmento de Infectología, Instituto Nacional de Ciencias Médicas y Nutrición "Salvador Zubirán", México DF, México
| | - Susan S Ellenberg
- Department of Biostatistics and Epidemiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Mohammed S Rassool
- Clinical HIV Research Unit, Department of Internal Medicine, Faculty of Health Sciences, University of Witwatersrand, Johannesburg, South Africa
| | - Ann Tierney
- Department of Biostatistics and Epidemiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Pablo F Belaunzarán-Zamudio
- Departmento de Infectología, Instituto Nacional de Ciencias Médicas y Nutrición "Salvador Zubirán", México DF, México.
| | - Alondra López-Martínez
- Departmento de Infectología, Instituto Nacional de Ciencias Médicas y Nutrición "Salvador Zubirán", México DF, México
| | - Alicia Piñeirúa-Menéndez
- Departmento de Infectología, Instituto Nacional de Ciencias Médicas y Nutrición "Salvador Zubirán", México DF, México
| | - Luis J Montaner
- HIV-1 Immunopathogenesis Laboratory, The Wistar Institute, Philadelphia, PA, USA
| | - Livio Azzoni
- HIV-1 Immunopathogenesis Laboratory, The Wistar Institute, Philadelphia, PA, USA
| | | | - Irini Sereti
- HIV Pathogenesis Unit, Laboratory of Immunoregulation, National Institute of Allergy and Infectious Diseases/National Institutes of Health, Bethesda, MD, USA
| | | | - Juan L Mosqueda-Gómez
- Centro Ambulatorio para la Prevención y Atención del SIDA e Infecciones de Transmisión Sexual, León, Guanajuato, México
| | - Benigno Rodriguez
- Center for AIDS Research, Case Western Reserve University, Cleveland, OH, USA
| | - Ian Sanne
- Clinical HIV Research Unit, Department of Internal Medicine, Faculty of Health Sciences, University of Witwatersrand, Johannesburg, South Africa
| | - Michael M Lederman
- Center for AIDS Research, Case Western Reserve University, Cleveland, OH, USA
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Clifford DB. Progressive multifocal leukoencephalopathy therapy. J Neurovirol 2014; 21:632-6. [PMID: 25227934 DOI: 10.1007/s13365-014-0289-8] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2014] [Revised: 09/03/2014] [Accepted: 09/05/2014] [Indexed: 12/31/2022]
Abstract
Progressive multifocal leukoencephalopathy (PML) is caused by the JC virus in the setting of chronic immune deficiency. Developing therapy has been challenged by the rarity of the disease as well as the complexity of patients in whom it develops. Several small trials directed at presumptive antiviral therapies have failed to show convincing clinical efficacy. However, the prognosis of PML has evolved from an almost uniformly fatal encephalitis to a disease where a majority of patients survive. This improvement in outlook has been driven by effective immune reconstitution strategies for the underlying disease, most prominently the improved therapy for human immunodeficiency virus and ability to reverse the effects of natalizumab. While a rapid acting and effective antiviral therapy remains a sought for goal, optimal immune reconstitution to control JC virus without causing brain-damaging immune reconstitution inflammatory syndrome (IRIS) currently is the most practical approach to treat PML.
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Affiliation(s)
- David B Clifford
- Washington University School of Medicine, Box 8111, 660 South Euclid Avenue, Saint Louis, MO, 63110, USA.
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Agnihotri SP, Dang X, Carter JL, Fife TD, Bord E, Batson S, Koralnik IJ. JCV GCN in a natalizumab-treated MS patient is associated with mutations of the VP1 capsid gene. Neurology 2014; 83:727-32. [PMID: 25037207 DOI: 10.1212/wnl.0000000000000713] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
OBJECTIVE To describe the clinical, neuroimaging, immunologic, and virologic characteristics of JC virus-associated granule cell neuronopathy (JCV GCN) in a natalizumab-treated patient with multiple sclerosis (MS) who developed immune reconstitution inflammatory syndrome (IRIS) after natalizumab withdrawal. METHODS We obtained longitudinal clinical data as well as MRI and proton magnetic resonance spectroscopy from this patient with MS. We measured JCV-specific cellular immune response in his peripheral blood by intracellular cytokine staining and sequenced a fragment of JCV VP1 capsid gene detected in his CSF. We contrast our findings with the first recently reported case. RESULTS This patient presented with worsening cerebellar symptoms and progressive cerebellar atrophy without new MS lesions on MRI after 63 months of natalizumab monotherapy. JCV DNA was detected in his CSF by PCR and harbored novel GCN-type mutations in the VP1 gene. He developed IRIS upon discontinuation of natalizumab and plasma exchange, which manifested itself by a worsening of clinical symptoms and contrast enhancement in the cerebellum on MRI. Treatment with corticosteroids resulted in resolution of IRIS, as demonstrated by proton magnetic resonance spectroscopy. The patient had a strong JCV-specific T-cell response in his peripheral blood and remains alive after 15 months from onset of symptoms, although with significant disability. He did not have MS relapse on glatiramer acetate. CONCLUSIONS JCV GCN should be considered in patients on natalizumab presenting with progressive cerebellar symptoms and cerebellar atrophy, and is associated with mutations in the JCV VP1 gene. Natalizumab withdrawal may be complicated by JCV GCN IRIS, and require treatment with corticosteroids.
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Affiliation(s)
- Shruti P Agnihotri
- From the Division of Neurovirology, Department of Neurology (S.P.A., X.D., E.B., S.B., I.J.K.), Center for Virology and Vaccine Research (S.P.A., X.D., E.B., S.B., I.J.K.), and Department of Medicine (I.J.K.), Beth Israel Deaconess Medical Center, Boston, MA; Department of Neurology (J.L.C., T.D.F.), University of Arizona College of Medicine, Tucson; and Barrow Neurological Institute (T.D.F.), Phoenix, AZ
| | - Xin Dang
- From the Division of Neurovirology, Department of Neurology (S.P.A., X.D., E.B., S.B., I.J.K.), Center for Virology and Vaccine Research (S.P.A., X.D., E.B., S.B., I.J.K.), and Department of Medicine (I.J.K.), Beth Israel Deaconess Medical Center, Boston, MA; Department of Neurology (J.L.C., T.D.F.), University of Arizona College of Medicine, Tucson; and Barrow Neurological Institute (T.D.F.), Phoenix, AZ
| | - Jonathan L Carter
- From the Division of Neurovirology, Department of Neurology (S.P.A., X.D., E.B., S.B., I.J.K.), Center for Virology and Vaccine Research (S.P.A., X.D., E.B., S.B., I.J.K.), and Department of Medicine (I.J.K.), Beth Israel Deaconess Medical Center, Boston, MA; Department of Neurology (J.L.C., T.D.F.), University of Arizona College of Medicine, Tucson; and Barrow Neurological Institute (T.D.F.), Phoenix, AZ
| | - Terry D Fife
- From the Division of Neurovirology, Department of Neurology (S.P.A., X.D., E.B., S.B., I.J.K.), Center for Virology and Vaccine Research (S.P.A., X.D., E.B., S.B., I.J.K.), and Department of Medicine (I.J.K.), Beth Israel Deaconess Medical Center, Boston, MA; Department of Neurology (J.L.C., T.D.F.), University of Arizona College of Medicine, Tucson; and Barrow Neurological Institute (T.D.F.), Phoenix, AZ
| | - Evelyn Bord
- From the Division of Neurovirology, Department of Neurology (S.P.A., X.D., E.B., S.B., I.J.K.), Center for Virology and Vaccine Research (S.P.A., X.D., E.B., S.B., I.J.K.), and Department of Medicine (I.J.K.), Beth Israel Deaconess Medical Center, Boston, MA; Department of Neurology (J.L.C., T.D.F.), University of Arizona College of Medicine, Tucson; and Barrow Neurological Institute (T.D.F.), Phoenix, AZ
| | - Stephanie Batson
- From the Division of Neurovirology, Department of Neurology (S.P.A., X.D., E.B., S.B., I.J.K.), Center for Virology and Vaccine Research (S.P.A., X.D., E.B., S.B., I.J.K.), and Department of Medicine (I.J.K.), Beth Israel Deaconess Medical Center, Boston, MA; Department of Neurology (J.L.C., T.D.F.), University of Arizona College of Medicine, Tucson; and Barrow Neurological Institute (T.D.F.), Phoenix, AZ
| | - Igor J Koralnik
- From the Division of Neurovirology, Department of Neurology (S.P.A., X.D., E.B., S.B., I.J.K.), Center for Virology and Vaccine Research (S.P.A., X.D., E.B., S.B., I.J.K.), and Department of Medicine (I.J.K.), Beth Israel Deaconess Medical Center, Boston, MA; Department of Neurology (J.L.C., T.D.F.), University of Arizona College of Medicine, Tucson; and Barrow Neurological Institute (T.D.F.), Phoenix, AZ.
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HIV-1 induces cytoskeletal alterations and Rac1 activation during monocyte-blood-brain barrier interactions: modulatory role of CCR5. Retrovirology 2014; 11:20. [PMID: 24571616 PMCID: PMC4015682 DOI: 10.1186/1742-4690-11-20] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2013] [Accepted: 01/07/2014] [Indexed: 01/06/2023] Open
Abstract
Background Most HIV strains that enter the brain are macrophage-tropic and use the CCR5 receptor to bind and infect target cells. Because the cytoskeleton is a network of protein filaments involved in cellular movement and migration, we investigated whether CCR5 and the cytoskeleton are involved in endothelial-mononuclear phagocytes interactions, adhesion, and HIV-1 infection. Results Using a cytoskeleton phospho-antibody microarray, we showed that after co-culture with human brain microvascular endothelial cells (HBMEC), HIV-1 infected monocytes increased expression and activation of cytoskeleton-associated proteins, including Rac1/cdc42 and cortactin, compared to non-infected monocytes co-cultured with HBMEC. Analysis of brain tissues from HIV-1-infected patients validated these findings, and showed transcriptional upregulation of Rac1 and cortactin, as well as increased activation of Rac1 in brain tissues of HIV-1-infected humans, compared to seronegative individuals and subjects with HIV-1-encephalitis. Confocal imaging showed that brain cells expressing phosphorylated Rac1 were mostly macrophages and blood vessels. CCR5 antagonists TAK-799 and maraviroc prevented HIV-induced upregulation and phosphorylation of cytoskeleton-associated proteins, prevented HIV-1 infection of macrophages, and diminished viral-induced adhesion of monocytes to HBMEC. Ingenuity pathway analysis suggests that during monocyte-endothelial interactions, HIV-1 alters protein expression and phosphorylation associated with integrin signaling, cellular morphology and cell movement, cellular assembly and organization, and post-translational modifications in monocytes. CCR5 antagonists prevented these HIV-1-induced alterations. Conclusions HIV-1 activates cytoskeletal proteins during monocyte-endothelial interactions and increase transcription and activation of Rac1 in brain tissues. In addition to preventing macrophage infection, CCR5 antagonists could diminish viral-induced alteration and phosphorylation of cytoskeletal proteins, monocyte adhesion to the brain endothelium and viral entry into the central nervous system.
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Meintjes G, Scriven J, Marais S. Management of the immune reconstitution inflammatory syndrome. Curr HIV/AIDS Rep 2012; 9:238-50. [PMID: 22752438 DOI: 10.1007/s11904-012-0129-5] [Citation(s) in RCA: 66] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
The immune reconstitution inflammatory syndrome (IRIS) is a frequent early complication of antiretroviral therapy (ART) in patients with advanced HIV. Because there is no confirmatory diagnostic test, the diagnosis is based on clinical presentation and exclusion of alternative causes for deterioration, such as antimicrobial drug resistance. Opportunistic infection treatment should be optimized. Mild cases may require symptomatic therapy alone or nonsteroidal anti-inflammatory drugs. Corticosteroids have been used to treat more severe cases of IRIS associated with mycobacterial and fungal infections. There is evidence from a randomized controlled trial that prednisone reduces morbidity and improves symptoms in paradoxical tuberculosis (TB)-IRIS. Neurological TB-IRIS is potentially life-threatening; high-dose corticosteroids are indicated and ART interruption should be considered if level of consciousness is depressed. When considering corticosteroid treatment clinicians should be aware of their side effects and only use them when the diagnosis of IRIS is certain. In viral forms of IRIS corticosteroids are generally avoided.
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Affiliation(s)
- Graeme Meintjes
- Institute of Infectious Diseases and Molecular Medicine, University of Cape Town, Cape Town, South Africa.
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Gheuens S, Wüthrich C, Koralnik IJ. Progressive multifocal leukoencephalopathy: why gray and white matter. ANNUAL REVIEW OF PATHOLOGY-MECHANISMS OF DISEASE 2012; 8:189-215. [PMID: 23092189 DOI: 10.1146/annurev-pathol-020712-164018] [Citation(s) in RCA: 97] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Since it was first described in 1958, progressive multifocal leukoencephalopathy (PML), a demyelinating disease of the brain caused by the polyomavirus JC (JCV), has evolved tremendously. It was once considered a noninflammatory disease that affected exclusively oligodendrocytes and astrocytes in the white matter of immunosuppressed individuals and was almost always fatal. Today, we understand that PML can present during the course of an immune reconstitution inflammatory syndrome and that it affects a broader range of individuals, including patients with minimal immunosuppression and those who are treated with novel immunomodulatory medications. Furthermore, JCV-infected glial cells are frequently located at the gray matter-white matter junction or within the gray matter, causing demyelinating lesions within cortical areas. Finally, JCV variants can also infect neurons, leading to the recognition of two distinct clinical entities: JCV granule cell neuronopathy and JCV encephalopathy.
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Affiliation(s)
- Sarah Gheuens
- Division of Neurovirology and Departments of Neurology and Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA.
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Pathogenesis of the immune reconstitution inflammatory syndrome in HIV-infected patients. Curr Opin Infect Dis 2012; 25:312-20. [PMID: 22562000 DOI: 10.1097/qco.0b013e328352b664] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
PURPOSE OF REVIEW The immune reconstitution inflammatory syndrome (IRIS) is an important clinical complication in HIV-infected patients initiating antiretroviral therapy. This review focuses on the latest literature pertaining to the pathogenesis of IRIS. RECENT FINDINGS The clinical manifestations of IRIS are heterogeneous due to the variety of opportunistic infections that are associated with this inflammatory syndrome. However, the disproportionate inflammation is a defining hallmark for which common mechanisms are suspected. Lymphopenia-induced proliferation in the context of systemic immune activation, presence of high antigenic exposure and a wider availability of interleukin-7 contribute to the exacerbated immune response underlying IRIS. Defect in pathogen clearance by phagocytes might favor high pathogen burden, which in turn is thought to activate both innate immune cells and pathogen-specific T cells upon correction of the CD4 T-cell lymphopenia, predisposing to IRIS. This common scenario might be further invigorated by functional impairments among regulatory T cells. SUMMARY Further insight into the cellular mechanisms driving IRIS is urgently needed. Understanding the relative contribution of distinct effector and regulatory T-cell subsets, and innate immune components to IRIS is required to inspire future therapeutic approaches.
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Shen MY, Liu YJ, Don MJ, Liu HY, Chen ZW, Mettling C, Corbeau P, Chiang CK, Jang YS, Li TH, Young P, Chang CLT, Lin YL, Yang WC. Combined phytochemistry and chemotaxis assays for identification and mechanistic analysis of anti-inflammatory phytochemicals in Fallopia japonica. PLoS One 2011; 6:e27480. [PMID: 22087325 PMCID: PMC3210798 DOI: 10.1371/journal.pone.0027480] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2011] [Accepted: 10/17/2011] [Indexed: 11/25/2022] Open
Abstract
Plants provide a rich source of lead compounds for a variety of diseases. A novel approach combining phytochemistry and chemotaxis assays was developed and used to identify and study the mechanisms of action of the active compounds in F. japonica, a medicinal herb traditionally used to treat inflammation. Based on a bioactivity-guided purification strategy, two anthranoids, emodin and physcion, were identified from F. japonica. Spectroscopic techniques were used to characterize its crude extract, fractions and phytochemicals. The crude extract, chloroform fraction, and anthranoids of F. japonica significantly inhibited CXCR4-mediated chemotaxis. Mechanistic studies showed that emodin and physcion inhibited chemotaxis via inactivating the MEK/ERK pathway. Moreover, the crude extract and emodin could prevent or treat type 1 diabetes in non-obese diabetic (NOD) mice. This study illustrates the applicability of a combinational approach for the study of anti-inflammatory medicine and shows the potential of F. japonica and its anthranoids for anti-inflammatory therapy.
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Affiliation(s)
- Ming-Yi Shen
- Biotechnology Research Center, Academia Sinica, Taipei, Taiwan
| | - Yan-Jun Liu
- Biotechnology Research Center, Academia Sinica, Taipei, Taiwan
- Institute of Pharmacology, National Yang-Ming University, Taipei, Taiwan
| | - Ming-Jaw Don
- National Research Institute of Chinese Medicine, Taipei, Taiwan
| | - Hsien-Yueh Liu
- Department of Veterinary Medicine, Department of Life Sciences, National Chung Hsing University, Taichung, Taiwan
| | - Zeng-Weng Chen
- Biotechnology Research Center, Academia Sinica, Taipei, Taiwan
| | - Clément Mettling
- Institut de Génétique Humaine (CNRS UPR-1142), Montpellier, France
| | - Pierre Corbeau
- Institut de Génétique Humaine (CNRS UPR-1142), Montpellier, France
| | - Chih-Kang Chiang
- Department of Chinese Medicine, Buddist Tzu Chi General Hospital, Hualien, Taiwan
| | - Yu-Song Jang
- Biotechnology Research Center, Academia Sinica, Taipei, Taiwan
| | - Tzu-Hsuan Li
- Biotechnology Research Center, Academia Sinica, Taipei, Taiwan
| | - Paul Young
- Biotechnology Research Center, Academia Sinica, Taipei, Taiwan
| | - Cicero L. T. Chang
- Department of Veterinary Medicine, Department of Life Sciences, National Chung Hsing University, Taichung, Taiwan
- * E-mail: (CLTC); (YLL); (WCY)
| | - Yea-Lih Lin
- Institut de Génétique Humaine (CNRS UPR-1142), Montpellier, France
- * E-mail: (CLTC); (YLL); (WCY)
| | - Wen-Chin Yang
- Biotechnology Research Center, Academia Sinica, Taipei, Taiwan
- Institute of Pharmacology, National Yang-Ming University, Taipei, Taiwan
- Department of Veterinary Medicine, Department of Life Sciences, National Chung Hsing University, Taichung, Taiwan
- * E-mail: (CLTC); (YLL); (WCY)
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Lawn SD, Meintjes G. Pathogenesis and prevention of immune reconstitution disease during antiretroviral therapy. Expert Rev Anti Infect Ther 2011; 9:415-30. [PMID: 21504399 DOI: 10.1586/eri.11.21] [Citation(s) in RCA: 62] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The risks of unmasking and paradoxical forms of immune reconstitution disease in HIV-infected patients starting antiretroviral therapy (ART) are fuelled by a combination of the late presentation of patients with advanced immunodeficiency, the associated high rates of opportunistic infections (OIs) and the need for rapid initiation of ART to minimize overall mortality risk. We review the risk factors and our current knowledge of the immunopathogenesis of immune reconstitution disease, leading to a discussion of strategies for prevention. Initiation of ART at higher CD4 counts, use of OI-preventive therapies prior to ART eligibility, intensified screening for OIs prior to ART initiation and optimum therapy for OIs are all needed. In addition, use of a range of pharmacological agents with immunosuppressive and immunomodulatory activity is being explored.
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Affiliation(s)
- Stephen D Lawn
- The Desmond Tutu HIV Centre, Institute of Infectious Disease and Molecular Medicine, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa.
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Martin-Blondel G, Delobel P, Blancher A, Massip P, Marchou B, Liblau RS, Mars LT. Pathogenesis of the immune reconstitution inflammatory syndrome affecting the central nervous system in patients infected with HIV. Brain 2011; 134:928-46. [DOI: 10.1093/brain/awq365] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
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