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Hissong E, Arora K, Andy C, Jessurun J, Yantiss RK. Histologic Manifestations of Gastrointestinal Adenovirus Infection After Stem Cell Transplant. Am J Surg Pathol 2024; 48:521-527. [PMID: 38329327 DOI: 10.1097/pas.0000000000002197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2024]
Abstract
Adenovirus can cause severe disease in hematopoietic stem cell transplant (HSCT) patients. Histopathologic features of this infection in gastrointestinal biopsies and their distinction from graft-versus-host disease (GVHD) have been incompletely studied. We retrospectively identified patients with gastrointestinal adenovirus infection. H&E-stained sections were reviewed and the histologic features were recorded. The extent of immunostaining was determined using a semiquantitative scale and a maximum number of positive cells per high-power field. Information regarding the clinical course and endoscopic findings were obtained from the electronic medical records. The study group included 32 HSCT patients. Most (81%) presented with diarrhea and detectable virus in the serum. Twenty patients had multiorgan involvement in the gastrointestinal tract, mostly in the duodenum (62%) and colon (56%). Characteristic features included apoptotic epithelial cells with nuclear disarray (84%) and tufted aggregates of degenerating epithelial cells (69%), the latter of which was more commonly seen in the study population more than a control group of HSCT patients with GI involvement by GVHD. Viral inclusions were limited to the superficial epithelium in 59% of samples, and the density of viral inclusions within biopsies was variable (grade 1: 40%, grade 2: 38%, and grade 3: 22%). Following therapy, 10 patients (30%) improved and 14 (42%) had progressive disease. Patients with disease progression were often older (64 vs. 36 years, P =0.01) with higher serologic viral loads, prior history of GVHD, multifocal involvement, and increased number and density of immunoreactive nuclei. Adenovirus infection elicits a spectrum of histologic changes that can simulate or occur in combination with gastrointestinal GVHD. Patients with progressive disease are more likely to have high viral loads and more extensive infection of the gastrointestinal tract.
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Affiliation(s)
| | | | - Caroline Andy
- Population Health Sciences, Weill Cornell Medicine, New York, NY
| | | | - Rhonda K Yantiss
- Department of Pathology and Laboratory Medicine, Miller School of Medicine, University of Miami, Miami, FL
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Thomas SJ, Ouellette CP. Viral meningoencephalitis in pediatric solid organ or hematopoietic cell transplant recipients: a diagnostic and therapeutic approach. Front Pediatr 2024; 12:1259088. [PMID: 38410764 PMCID: PMC10895047 DOI: 10.3389/fped.2024.1259088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/15/2023] [Accepted: 01/26/2024] [Indexed: 02/28/2024] Open
Abstract
Neurologic complications, both infectious and non-infectious, are frequent among hematopoietic cell transplant (HCT) and solid organ transplant (SOT) recipients. Up to 46% of HCT and 50% of SOT recipients experience a neurological complication, including cerebrovascular accidents, drug toxicities, as well as infections. Defects in innate, adaptive, and humoral immune function among transplant recipients predispose to opportunistic infections, including central nervous system (CNS) disease. CNS infections remain uncommon overall amongst HCT and SOT recipients, compromising approximately 1% of total cases among adult patients. Given the relatively lower number of pediatric transplant recipients, the incidence of CNS disease amongst in this population remains unknown. Although infections comprise a small percentage of the neurological complications that occur post-transplant, the associated morbidity and mortality in an immunosuppressed state makes it imperative to promptly evaluate and aggressively treat a pediatric transplant patient with suspicion for viral meningoencephalitis. This manuscript guides the reader through a broad infectious and non-infectious diagnostic differential in a transplant recipient presenting with altered mentation and fever and thereafter, elaborates on diagnostics and management of viral meningoencephalitis. Hypothetical SOT and HCT patient cases have also been constructed to illustrate the diagnostic and management process in select viral etiologies. Given the unique risk for various opportunistic viral infections resulting in CNS disease among transplant recipients, the manuscript will provide a contemporary review of the epidemiology, risk factors, diagnosis, and management of viral meningoencephalitis in these patients.
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Affiliation(s)
- Sanya J. Thomas
- Host Defense Program, Section of Infectious Diseases, Nationwide Children’s Hospital, Columbus, OH, United States
- Division of Infectious Diseases, Department of Pediatrics, Ohio State University College of Medicine, Columbus, OH, United States
| | - Christopher P. Ouellette
- Host Defense Program, Section of Infectious Diseases, Nationwide Children’s Hospital, Columbus, OH, United States
- Division of Infectious Diseases, Department of Pediatrics, Ohio State University College of Medicine, Columbus, OH, United States
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Cesaro S. Adenovirus infection in allogeneic hematopoietic cell transplantation. Transpl Infect Dis 2023; 25 Suppl 1:e14173. [PMID: 37846850 DOI: 10.1111/tid.14173] [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: 08/16/2023] [Revised: 09/30/2023] [Accepted: 10/03/2023] [Indexed: 10/18/2023]
Abstract
Adenovirus (AdV) infection occurs in 0-20% of patients in the first 3-4 months after allogeneic hematopoietic cell transplantation (HCT), being higher in pediatric than in adult patients. About 50% of AdV infections involve the blood, which in turn, correlates with an increased risk developing AdV diseases, end-organ damage, and 6-month overall mortality. The main risk factors for AdV infection are T-cell depletion of the graft by ex vivo selection procedures or in vivo use of alemtuzumab or antithymocyte serum, development of graft versus host disease (GVHD) grade III-IV, donor type (haploidentical or human leucocyte antigen mismatched related donor > cord blood> unrelated matched donor) and severe lymphopenia (<0.2 × 109 /L). The prevention of AdV disease relies on early diagnosis of increasing viral replication in blood or stool and the pre-emptive start of cidofovir as viral load exceeds the threshold of ≥102-3 copies/mL in blood and/or 106 copies/g stool in the stool. Cidofovir (CDV), a cytosine monophosphate nucleotide analog, is currently the only antiviral recommended for AdV infection despite limited efficacy and moderate risk of nephrotoxicity. Brincidofovir, a lipid derivative of CDV with more favorable pharmacokinetics properties and superior efficacy, is not available and currently is being investigated for other viral infections. The enhancement of virus-specific T-cell immunity in the first few months post-HCT by the administration of donor-derived or third-party-donor-derived virus-specific T-cells represents an innovative and promising modality of intervention and data of efficacy and safety of the ongoing prospective randomized studies are eagerly awaited.
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Affiliation(s)
- Simone Cesaro
- Pediatric Hematology Oncology, Department of Mother and Child, Azienda Ospedaliera Universitaria Integrata Verona, Verona, Italy
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Grasa C, Monteagudo-Vilavedra E, Pérez-Arenas E, Falces-Romero I, Mozo Del Castillo Y, Schüffelmann-Gutiérrez C, Del Rosal T, Méndez-Echevarría A, Baquero-Artigao F, Zarauza Santoveña A, Serrano Fernández P, Sainz T, Calvo C. Adenovirus Infection in Hematopoietic and Solid Organ Paediatric Transplant Recipients: Treatment, Outcomes, and Use of Cidofovir. Microorganisms 2023; 11:1750. [PMID: 37512922 PMCID: PMC10386416 DOI: 10.3390/microorganisms11071750] [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: 05/09/2023] [Revised: 06/20/2023] [Accepted: 07/01/2023] [Indexed: 07/30/2023] Open
Abstract
BACKGROUND human adenovirus (hAdV) infection constitutes an important cause of morbidity and mortality in transplant recipients, due to their immune status. Among drugs currently available, cidofovir (CDF) is the most prescribed. METHODS Retrospective study of hAdV infection in paediatric transplant recipients from a tertiary paediatric centre, describing characteristics, management, and outcomes, and focused on the role of CDF. RESULTS 49 episodes of infection by hAdV were detected during a four-year period: 38 episodes in patients that received allogeneic hematopoietic stem cell transplantation (77.6%) and 11 in solid organ transplant recipients (22.4%). Twenty-five patients (52.1%) were symptomatic, presenting mainly fever and/or diarrhoea. CDF was prescribed in 24 patients (49%), with modest results. CDF use was associated with the presence of symptoms resulting in lower lymphocyte count, paediatric intensive care unit admission, and high viral load. Other therapeutic measures included administration of intravenous immunoglobulin, reducing immunosuppression, and T-lymphocyte infusion. Despite treatment, 22.9% of patients did not resolve the infection and there were three deaths related to hAdV infection. All-cause mortality was 16.7% (8 episodes) by 30 days, and 32.7% (16 episodes) by 90 days, of which, 3 episodes (3/16, 18.8%) were attributed to hAdV directly. CONCLUSIONS hAdV infection had high morbidity and mortality in our series. CDF use is controversial, and available therapeutic options are limited. Transplant patients with low lymphocyte count are at higher risk of persistent positive viremias, and short-term survival of these patients was influenced by the resolution of hAdV infection.
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Affiliation(s)
- Carlos Grasa
- Pediatric Infectious Diseases Department, Instituto de Investigación Sanitaria del Hospital Universitario la Paz (IdiPAZ), Hospital Universitario la Paz, 28046 Madrid, Spain
- Centro de Investigación Biomédica en Red en Enfermedades Infecciosas (CIBERINFEC), Instituto de Salud Carlos III-ISCIII, 28029 Madrid, Spain
| | | | - Elena Pérez-Arenas
- Pediatric Infectious Diseases Department, Instituto de Investigación Sanitaria del Hospital Universitario la Paz (IdiPAZ), Hospital Universitario la Paz, 28046 Madrid, Spain
| | - Iker Falces-Romero
- Centro de Investigación Biomédica en Red en Enfermedades Infecciosas (CIBERINFEC), Instituto de Salud Carlos III-ISCIII, 28029 Madrid, Spain
- Microbiology Department, Instituto de Investigación Sanitaria del Hospital Universitario la Paz (IdiPAZ), Hospital Universitario la Paz, 28041 Madrid, Spain
| | - Yasmina Mozo Del Castillo
- Pediatric Hematology and Oncology Department, Instituto de Investigación Sanitaria del Hospital Universitario la Paz (IdiPAZ), Hospital Universitario la Paz, 28046 Madrid, Spain
| | - Cristina Schüffelmann-Gutiérrez
- Pediatric Intensive Care Department, Instituto de Investigación Sanitaria del Hospital Universitario la Paz (IdiPAZ), Hospital Universitario la Paz, 28046 Madrid, Spain
| | - Teresa Del Rosal
- Pediatric Infectious Diseases Department, Instituto de Investigación Sanitaria del Hospital Universitario la Paz (IdiPAZ), Hospital Universitario la Paz, 28046 Madrid, Spain
- Centro de Investigación Biomédica en Red en Enfermedades Raras (CIBERER), Instituto de Salud Carlos III-ISCIII, 28029 Madrid, Spain
- Red de Investigación Traslacional en Infectología Pediátrica (RITIP), 28046 Madrid, Spain
| | - Ana Méndez-Echevarría
- Pediatric Infectious Diseases Department, Instituto de Investigación Sanitaria del Hospital Universitario la Paz (IdiPAZ), Hospital Universitario la Paz, 28046 Madrid, Spain
- Centro de Investigación Biomédica en Red en Enfermedades Infecciosas (CIBERINFEC), Instituto de Salud Carlos III-ISCIII, 28029 Madrid, Spain
- Red de Investigación Traslacional en Infectología Pediátrica (RITIP), 28046 Madrid, Spain
- Medicine Faculty, Universidad Autónoma de Madrid, Ciudad Universitaria de Cantoblanco, 28049 Madrid, Spain
| | - Fernando Baquero-Artigao
- Pediatric Infectious Diseases Department, Instituto de Investigación Sanitaria del Hospital Universitario la Paz (IdiPAZ), Hospital Universitario la Paz, 28046 Madrid, Spain
- Centro de Investigación Biomédica en Red en Enfermedades Infecciosas (CIBERINFEC), Instituto de Salud Carlos III-ISCIII, 28029 Madrid, Spain
| | | | | | - Talía Sainz
- Pediatric Infectious Diseases Department, Instituto de Investigación Sanitaria del Hospital Universitario la Paz (IdiPAZ), Hospital Universitario la Paz, 28046 Madrid, Spain
- Centro de Investigación Biomédica en Red en Enfermedades Infecciosas (CIBERINFEC), Instituto de Salud Carlos III-ISCIII, 28029 Madrid, Spain
- Red de Investigación Traslacional en Infectología Pediátrica (RITIP), 28046 Madrid, Spain
- Medicine Faculty, Universidad Autónoma de Madrid, Ciudad Universitaria de Cantoblanco, 28049 Madrid, Spain
| | - Cristina Calvo
- Pediatric Infectious Diseases Department, Instituto de Investigación Sanitaria del Hospital Universitario la Paz (IdiPAZ), Hospital Universitario la Paz, 28046 Madrid, Spain
- Centro de Investigación Biomédica en Red en Enfermedades Infecciosas (CIBERINFEC), Instituto de Salud Carlos III-ISCIII, 28029 Madrid, Spain
- Red de Investigación Traslacional en Infectología Pediátrica (RITIP), 28046 Madrid, Spain
- Medicine Faculty, Universidad Autónoma de Madrid, Ciudad Universitaria de Cantoblanco, 28049 Madrid, Spain
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Adenovirus Infection in Pediatric Hematopoietic Cell Transplantation: A Challenge Still Open for Survival. J Clin Med 2022; 11:jcm11164827. [PMID: 36013066 PMCID: PMC9410345 DOI: 10.3390/jcm11164827] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2022] [Revised: 08/13/2022] [Accepted: 08/16/2022] [Indexed: 11/16/2022] Open
Abstract
Human Adenovirus (HAdV) infection occurs in 14−16% of patients in the early months after pediatric hematopoietic cell transplantation (HCT) and this correlates with a higher risk of developing HAdV disease and overall 6-month mortality. The main risk factors for HAdV infection are T-cell depletion of the graft by ex vivo CD34+ selection or in vivo use of alemtuzumab or anti-thymocyte serum, the development of grade III-IV graft versus host disease (GVHD), the type of donor (unrelated donor, cord blood, haploidentical, or HLA mismatched parent), and severe lymphopenia (<0.2 × 109/L). The prevention of HAdV disease is based on early intervention with antivirals in the asymptomatic patient when the permitted viral load threshold in the blood (≥102−3 copies/mL) and/or in the stool (109 copies/g stool) is exceeded. Cidofovir, a monophosphate nucleotide analog of cytosine, is the primary drug for preemptive therapy, used at 5 mg/kg/week for 2 weeks followed by 3−5 mg/kg every 2 weeks. The alternative schedule is 1 mg/kg every other day (three times/week). Enhancing virus-specific T-cell immunity in the first months post-HCT by donor-derived or third-party-derived virus-specific T cells represents an innovative and promising way of intervention, applicable both in prevention and therapeutic settings.
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Ehlert K, Schulte JH, Kühl JS, Lang P, Eggert A, Voigt S. Efficacy of Brincidofovir in Pediatric Stem Cell Transplant Recipients With Adenovirus Infections. J Pediatric Infect Dis Soc 2021:piab072. [PMID: 34379779 DOI: 10.1093/jpids/piab072] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Accepted: 07/20/2021] [Indexed: 11/14/2022]
Abstract
BACKGROUND Adenovirus (AdV) infections are of particular concern in pediatric hematopoietic stem cell transplantation (HSCT) recipients as therapeutic options are limited. Brincidofovir (BCV) is the lipid-conjugated pro-drug of cidofovir (CDV) with oral bioavailability and higher intracellular concentrations of the active drug. METHODS In this retrospective, single-center analysis, we included allogeneic pediatric HSCT recipients with refractory AdV infections because of contraindications or insufficient response to CDV. Common posttransplant viruses were monitored at least weekly by PCR in blood, stool, and urine. RESULTS Each of the 8 patients received 6 to 12 doses of BCV. BCV treatment was initiated between days +5 and +77. AdV DNAemia and intestinal AdV infection disappeared completely in 6/8 patients. Early AdV DNAemia before day +21 did not result in increased mortality. One patient with a systemic, acyclovir-resistant HSV-1 infection responded rapidly to BCV. Four patients did not survive. AdV infection-related death in 2 patients was accompanied by >1 × 109/mL AdV copy numbers in the blood. Two more patients died of graft-vs-host disease and acute respiratory distress syndrome, respectively, both not related to AdV. CONCLUSIONS AdV DNAemia and intestinal infection subsided completely in 75% of pediatric HSCT recipients treated with BCV. AdV DNAemia exceeding 1 × 109/mL and a poor lymphocyte recovery of <250/µL were associated with high mortality. Early AdV DNAemia before day +21, however, did not result in a worse outcome. Although access to BCV is currently suspended, further clinical trials are needed to clarify the role of BCV in HSCT recipients with AdV infections and its potential benefit in preventing AdV DNAemia in immunocompromised patients.
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Affiliation(s)
- Karoline Ehlert
- Department of Pediatric Hematology and Oncology, University Medicine Greifswald, Greifswald, Germany
| | - Johannes H Schulte
- Department of Pediatric Oncology and Hematology, Charité - Universitätsmedizin Berlin, Campus Virchow Klinikum, Berlin, Germany
- German Cancer Consortium (DKTK), partner site Berlin and German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Jörn-Sven Kühl
- Department of Pediatric Oncology, Hematology and Hemostaseology, Children's University Hospital Leipzig, Leipzig, Germany
| | - Peter Lang
- Department of Pediatric Hematology and Oncology, Children's University Hospital Tübingen, Tübingen, Germany
| | - Angelika Eggert
- Department of Pediatric Oncology and Hematology, Charité - Universitätsmedizin Berlin, Campus Virchow Klinikum, Berlin, Germany
- German Cancer Consortium (DKTK), partner site Berlin and German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Sebastian Voigt
- Department of Pediatric Oncology and Hematology, Charité - Universitätsmedizin Berlin, Campus Virchow Klinikum, Berlin, Germany
- Institute for Virology, University Hospital Essen, Essen, Germany
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Dodge MJ, MacNeil KM, Tessier TM, Weinberg JB, Mymryk JS. Emerging antiviral therapeutics for human adenovirus infection: Recent developments and novel strategies. Antiviral Res 2021; 188:105034. [PMID: 33577808 DOI: 10.1016/j.antiviral.2021.105034] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Revised: 02/04/2021] [Accepted: 02/05/2021] [Indexed: 12/11/2022]
Abstract
Human adenoviruses (HAdV) are ubiquitous human pathogens that cause a significant burden of respiratory, ocular, and gastrointestinal illnesses. Although HAdV infections are generally self-limiting, pediatric and immunocompromised individuals are at particular risk for developing severe disease. Currently, no approved antiviral therapies specific to HAdV exist. Recent outbreaks underscore the need for effective antiviral agents to treat life-threatening infections. In this review we will focus on recent developments in search of potential therapeutic agents for controlling HAdV infections, with a focus on those targeting post-entry stages of the virus replicative cycle.
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Affiliation(s)
- Mackenzie J Dodge
- Department of Microbiology and Immunology, The University of Western Ontario, London, ON, Canada
| | - Katelyn M MacNeil
- Department of Microbiology and Immunology, The University of Western Ontario, London, ON, Canada
| | - Tanner M Tessier
- Department of Microbiology and Immunology, The University of Western Ontario, London, ON, Canada
| | - Jason B Weinberg
- Department of Pediatrics, University of Michigan, Ann Arbor, MI, USA; Department of Microbiology and Immunology, University of Michigan, Ann Arbor, MI, USA
| | - Joe S Mymryk
- Department of Microbiology and Immunology, The University of Western Ontario, London, ON, Canada; Department of Otolaryngology, Head & Neck Surgery, The University of Western Ontario, London, ON, Canada; Department of Oncology, The University of Western Ontario, London, ON, Canada; London Regional Cancer Program, Lawson Health Research Institute, London, ON, Canada.
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