AG Melanie Fiedler
Virusinfektionen unter Immunsuppression
Forschungsschwerpunkte
- Hepatitis E-Virusinfektion bei Immunsuppression
- Immunität gegen Masern, Mumps und Röteln
Projekt
Bei Patienten mit immunsuppressiver Therapie verläuft die Hepatitis E-Virus (HEV)-Infektion häufig chronisch. In Zusammenarbeit mit der Klinik für Nephrologie untersuchen wir die Häufigkeit der HEV-Infektion bei Patienten nach Nierentransplantation und den Erfolg einer frühen Ribavirintherapie. In Kooperation mit dem Konsiliarlabor für HEV, Institut für Klinische Mikrobiologie und Hygiene, Universitätsklinikum Regensburg, werden Sequenzanalysen durchgeführt.
Die Bestimmung der Immunität gegen Masern, Mumps und Röteln (MMR) ist wichtig bei Kindern nach Nierentransplantation und unter Immunsuppression. Die chronische Erkrankung dieser Kinder vor Transplantation kann zu einem schlechteren Ansprechen auf die Impfungen gegen diese Erreger führen. Die Immunität wird in der Regel mit IgG-Testungen überprüft, die allerdings nur eine begrenzte Aussagekraft zur Immunitätslage haben. Wir überprüfen die Funktionalität der Antikörper mittels Plaqueassays/Neutralisationstesten in Zusammenarbeit mit dem Nationalen Referenzzentrum für MMR und vergleichen die Aussagekraft verschiedener Teste miteinander.
Arbeitsgruppe

Dr. med. Melanie Fiedler
Tel.: +49 (0)201 723 85457
E-Mail: melanie.fiedler@uni-due.de
Publikationen
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COVID-19 vaccination in psoriasis patients receiving systemic treatment : A prospective single-center studyIn: Frontiers in Immunology Jg. 14 (2023) S. 1107438Online Volltext: dx.doi.org/ (Open Access)
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COVID-19 vaccination in advanced skin cancer patients receiving systemic anticancer treatment : A prospective singlecenter study investigating seroconversion ratesIn: Frontiers in Oncology Jg. 12 (2022) 879876Online Volltext: dx.doi.org/ Online Volltext (Open Access)
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Discrepancy between frequent occurrence of COVID-19-like symptoms and low seroconversion rates among healthcare workersIn: Journal of Medical Virology Jg. 94 (2022) Nr. 3: Special Issue on New coronavirus (2019‐nCoV or SARS‐CoV‐2) and the outbreak of the respiratory illness (COVID‐19): Part‐XVIII, S. 951 - 957Online Volltext: dx.doi.org/ (Open Access)
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Establishment and clinical validation of an in-cell-ELISA-based assay for the rapid quantification of Rabies virus neutralizing antibodiesIn: PLoS Neglected Tropical Diseases Jg. 16 (2022) Nr. 5, e0010425Online Volltext: dx.doi.org/ Online Volltext (Open Access)
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The Course of Anti-HBc Antibodies over Time in Immunocompromised HostsIn: Vaccines Jg. 10 (2022) Nr. 2, 137Online Volltext: dx.doi.org/ (Open Access)
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Common respiratory viral infections : Bilateral versus unilateral bronchoalveolar lavage versus endotracheal aspirationIn: Journal of Medical Virology Jg. 93 (2021) Nr. 6, S. 3955 - 3959Online Volltext: dx.doi.org/
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Comparison of three cellular assays to predict the course of CMV infection in liver transplant recipientsIn: Vaccines Jg. 9 (2021) Nr. 2, S. 88Online Volltext: dx.doi.org/ Online Volltext (Open Access)
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Norovirus Infections in Kidney Transplant RecipientsIn: Transplantation Jg. 105 (2021) Nr. 12, S. 2655 - 2660Online Volltext: dx.doi.org/
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Observational cohort study of neurological involvement among patients with SARS-CoV-2 infectionIn: Therapeutic Advances in Neurological Disorders Jg. 14 (2021)Online Volltext: dx.doi.org/ Online Volltext (Open Access)
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Performance of the LIAISON® SARS-CoV-2 Antigen Assay vs. SARS-CoV-2-RT-PCRIn: Pathogens Jg. 10 (2021) Nr. 6, 658Online Volltext: dx.doi.org/ Online Volltext (Open Access)
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Vitamin C und Thiamin im Septischen Schock – Eine retrospektive Vorher-Nachher-Studie an chirurgischen PatientenIn: Anästhesiologie & Intensivmedizin Jg. 62 (2021) Nr. 2, S. 63 - 69Online Volltext: dx.doi.org/
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Prevalence of active hepatitis E virus infection and efficacy of ribavirin treatment in renal allograft recipientsIn: Transplant Infectious Disease Jg. 21 (2019) Nr. 3, e13088Online Volltext: dx.doi.org/
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Adoptive transfer of cellular immunity against cytomegalovirus by virus-specific lymphocytes from a third-party family donorIn: Bone Marrow Transplantation Jg. 53 (2018) Nr. 10, S. 1351 - 1355Online Volltext: dx.doi.org/ (Open Access)
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Amino acid substitutions within HLA-B*27- restricted T cell epitopes prevent recognition by hepatitis delta virus-specific CD8⁺ T cellsIn: Journal of Virology Jg. 92 (2018) Nr. 13, e01891-17Online Volltext: dx.doi.org/ Online Volltext (Open Access)
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Assessing the risk of CMV reactivation and reconstitution of antiviral immune response post bone marrow transplantation by the QuantiFERON-CMV-assay and real time PCRIn: Journal of Clinical Virology Jg. 99-100 (2018) S. 61 - 66Online Volltext: dx.doi.org/ (Open Access)
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Microbiologic Diagnostic Workup of Acute Respiratory Failure with Pulmonary Infiltrates after Allogeneic Hematopoietic Stem Cell Transplantation : Findings in the Era of Molecular- and Biomarker-Based AssaysIn: Biology of Blood and Marrow Transplantation Jg. 24 (2018) Nr. 8, S. 1707 - 1714Online Volltext: dx.doi.org/ Online Volltext (Open Access)
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T-Track-CMV and QuantiFERON-CMV assays for prediction of protection from CMV reactivation in kidney transplant recipientsIn: Journal of Clinical Virology Jg. 105 (2018) S. 91 - 96Online Volltext: dx.doi.org/
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Early Cytomegalovirus Reactivation and Donor Constellation Reduce Early and Late Relapse Incidence of Acute Myeloid Leukemia in a Long-Term Study
60th ASH Annual Meeting; December 1-4, 2018; San Diego, USA,In: Blood Jg. 132 (2018) Nr. Supplement 1, S. 3413 - 3413Online Volltext: dx.doi.org/ (Open Access) -
Efficacy of Ribavirin Treatment for Active Hepatitis E Infection in Renal Allograft Recipients
27th Annual Meeting of the German Transplantation Society, Berlin, Germany, 7–10 November 2018,In: Transplant International Jg. 31 (2018) Nr. S5, S. 30Online Volltext: dx.doi.org/ (Open Access) -
CMV elispot assays are superior to the quantiferon CMV assay to predict protection from CMV reactivation in kidney ans liver transplant recipientsIn: HLA: Immune Response Genetics (Human Leukocyte Antigens) Jg. 89 (2017) Nr. 6, S. 375Online Volltext: dx.doi.org/
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Cytomegalovirus reactivation in patients with refractory checkpoint inhibitor-induced colitisIn: European Journal of Cancer (EJC) Jg. 86 (2017) S. 248 - 256Online Volltext: dx.doi.org/
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Early CMV replication after allogeneic stem cell transplantation is associated with a reduced relapse risk in acute myeloid leukemia : results of a prospective non-interventional trialIn: Oncology Research and Treatment Jg. 40 (2017) Nr. Suppl. 3, Jahrestagung der Deutschen, Österreichischen und Schweizerischen Gesellschaften für Hämatologie und Medizinische Onkologie, Stuttgart, 29. September-3. Oktober 2017: Abstracts, S. 101Online Volltext: dx.doi.org/
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Humans with latent toxoplasmosis display altered reward modulation of cognitive controlIn: Scientific Reports Jg. 7 (2017) Nr. 1, S. 10170Online Volltext: dx.doi.org/ Online Volltext (Open Access)
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Humoral and Cellular Responses to a Single Dose of Fendrix in Renal Transplant Recipients with Non-response to Previous Hepatitis B VaccinationIn: Scandinavian Journal of Immunology Jg. 85 (2017) Nr. 1, S. 51 - 57Online Volltext: dx.doi.org/ (Open Access)
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Transplantation of Renal Allografts From Organ Donors Reactive for HCV Antibodies to HCV-Negative Recipients: Safety and Clinical OutcomeIn: Kidney International Reports Jg. 2 (2017) Nr. 1, S. 53 - 59Online Volltext: dx.doi.org/ (Open Access)
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Control of hepatitis B virus infection in hematopoietic stem cell recipients after receiving grafts from vaccinated donorsIn: Bone Marrow Transplantation Jg. 51 (2016) Nr. 3, S. 428 - 431Online Volltext: dx.doi.org/
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Early Replication of Human Cytomegalovirus (HCMV) is associated with a reduced risk of hematologic relapse in myeloid neoplasias after matched Unrelated Stem Cell Transplantation (HSCT) in an anti-thymocyte-globuline dependent mannerIn: Oncology Research and Treatment Jg. 39 (2016) Nr. Suppl. 3, S. 312 - 313Online Volltext: dx.doi.org/
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Humoral and cellular responses to a single dose of fendrix in kidney transplant recipients with non-response to conventional Hepatitis B vaccinesIn: Transplant International Jg. 29 Suppl. 3 (2016) S. 16 V107Online Volltext: dx.doi.org/
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Donor- and recipient-derived immunity in ABO incompatible living-related liver transplantationIn: Human Immunology Jg. 76 (2015) Nr. 9, S. 631 - 635Online Volltext: dx.doi.org/
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Clinical performance of the novel DiaSorin LIAISON® XL murex : HBsAg Quant, HCV-Ab, HIV-Ab/Ag assaysIn: Journal of Clinical Virology Jg. 59 (2014) Nr. 1, S. 44 - 49Online Volltext: dx.doi.org/
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Hepatitis C virus hypervariable region 1 variants presented on hepatitis B virus capsid-like particles induce cross-neutralizing antibodiesIn: PLoS ONE Jg. 9 (2014) Nr. 7, S. e102235Online Volltext: dx.doi.org/ (Open Access)
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Induction of a robust T- and B-cell immune response in non- and low-responders to conventional vaccination against hepatitis B by using a third generation PreS/S vaccineIn: Vaccine Jg. 32 (2014) Nr. 39, S. 5077 - 5082Online Volltext: dx.doi.org/
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Toll-like receptor-mediated immune responses are attenuated in the presence of high levels of hepatitis B virus surface antigenIn: Journal of Viral Hepatitis Jg. 21 (2014) Nr. 12, S. 860 - 872Online Volltext: dx.doi.org/
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Combination of DNA Prime - Adenovirus Boost Immunization with Entecavir Elicits Sustained Control of Chronic Hepatitis B in the Woodchuck ModelIn: PLoS Pathogens Jg. 9 (2013) Nr. 6, S. e100339Online Volltext: dx.doi.org/ (Open Access)
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Immune ecasion of hepatitis delta from CD8+ t cell immune responseIn: Journal of Hepatology Jg. 58 (2013) Nr. Suppl. 1, S. S20Online Volltext: dx.doi.org/
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Increase in West Nile virus infections imported to Germany in 2012In: Journal of Clinical Virology Jg. 58 (2013) Nr. 3, S. 587 - 589Online Volltext: dx.doi.org/
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Molecular characterization of woodchuck CD4 (wCD4) and production of a depletion monoclonal antibody against wCD4In: Molecular Immunology Jg. 56 (2013) Nr. 1/2, S. 64 - 71Online Volltext: dx.doi.org/
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Prime/boost immunization with DNA and adenoviral vectors protects from hepatitis D virus (HDV) infection after simultaneous infection with HDV and woodchuck hepatitis virusIn: Journal of Virology Jg. 87 (2013) Nr. 13, S. 7708 - 7716Online Volltext: dx.doi.org/
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DNA Prime-adenovirus boost immunization induces a vigorous and multifunctional T-cell response against hepadnaviral proteins in the mouse and woodchuck modelIn: Journal of Virology Jg. 86 (2012) Nr. 17, S. 9297 - 9310Online Volltext: dx.doi.org/
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Krankenhaushygiene : Umgang mit einem EHEC-AusbruchIn: Deutsche Medizinische Wochenschrift - DMW Jg. 137 (2012) Nr. 18, S. 933 - 936Online Volltext: dx.doi.org/
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Prevalence of hepatitis e virus infection in pediatric solid organ transplant recipients : a single-center experienceIn: Pediatric Transplantation Jg. 16 (2012) Nr. 7, S. 742 - 747Online Volltext: dx.doi.org/
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Donor- and recipient-derived immunity in ABO incompatible living donor liver transplantationIn: Tissue Antigens Jg. 77 (2011) Nr. 5, S. 439Online Volltext: dx.doi.org/
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Primary HHV 6 infection after liver transplantation with acute graft rejection and multi-organ failure: Successful treatment with a 2.5-fold dose of cidofovir and reduction of immunosuppressionIn: Pediatric Transplantation Jg. 15 (2011) Nr. 6, S. E126 - E129Online Volltext: dx.doi.org/
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Outbreak - pandemic 2009 influenza A (H1N1) infections in a hematology ward : Clinical presentation and outcome
Jahrestagung der Deutschen, Österreichischen und Schweizerischen Gesellschaften für Hämatologie und Onkologie. Basel, 30.09.–04.10. 2011,In: Onkologie Jg. 34 (2011) Nr. Suppl. 6, S. 43Online Volltext: dx.doi.org/ -
Prime/boost immunization with DNA and adenoviral vectors protects woodchucks from hepatitis D virus infectionIn: Journal of Hepatology Jg. 54 (2011) Nr. Suppl. 1, S. S439Online Volltext: dx.doi.org/
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Hemikolektomie bei Kolonischämie : Fallbericht von Schweinegrippe mit letalem VerlaufIn: Der Chirurg Jg. 81 (2010) Nr. 9, S. 841 - 845Online Volltext: dx.doi.org/ Online Volltext (Open Access)
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Severe H1N1 infection in a pediatric liver transplant recipient treated with intravenous zanamivir : efficiency and complications : Letters to the EditorIn: Transplantation Jg. 90 (2010) Nr. 2, S. 223 - 224Online Volltext: dx.doi.org/ (Open Access)
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Clinical outcome of hepatitis B virus infection in patients receiving hematopoietic stem cell grafts from immunized donors
19th Annual Congress of the German Transplantation Society, Hamburg, Germany, 7‐9 October 2010,In: Transplant International Jg. 23 (2010) Nr. Suppl. 2, S. 29Online Volltext: dx.doi.org/ -
Hepatitis B Virus specific immune transfer in abo incompatible living donor liver transplantation
19th Annual Congress of the German Transplantation Society, Hamburg, Germany, 7‐9 October 2010,In: Transplant International Jg. 23 (2010) Nr. Suppl. 2, S. 29Online Volltext: dx.doi.org/ -
Disseminated adenovirus infection with respiratory failure in pediatric liver transplant recipients : Impact of intravenous cidofovir and inhaled nitric oxideIn: Pediatric Transplantation Jg. 10 (2006) Nr. 1, S. 121 - 127Online Volltext: dx.doi.org/
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Immuntransfer durch Transplantation : Impfungen der Spender können auch die Empfänger schützenIn: Essener Unikate: Berichte aus Forschung und Lehre (2006) Nr. 27 : Medizin – Immunologie, S. 74 - 81Online Volltext (Open Access)
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Acute liver failure associated with Coxsackie virus B2 infection in a neonateIn: European Journal of Pediatrics Jg. 163 (2004) Nr. 2, S. 116 - 117Online Volltext: dx.doi.org/
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Adoptive transfer of immunity : A new strategy to interfere with severe hepatitis virus reinfection after woodchuck liver transplantationIn: Transplantation Jg. 77 (2004) Nr. 7, S. 965 - 972Online Volltext: dx.doi.org/
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Helper-dependent adenoviral vector-mediated delivery of woodchuck-specific genes for alpha interferon (IFN-α) and IFN-γ : IFN-α but not IFN-γ reduces woodchuck hepatitis virus replication in chronic infection in vivoIn: Journal of Virology Jg. 78 (2004) Nr. 18, S. 10111 - 10121Online Volltext: dx.doi.org/ (Open Access)
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High prevalence of human metapneumovirus infection in young children and genetic heterogeneity of the viral isolatesIn: Journal of Clinical Microbiology Jg. 41 (2003) Nr. 7, S. 3043 - 3045Online Volltext: dx.doi.org/
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A new model of hepatitis B virus reinfection : Liver transplantation in the woodchuckIn: Transplantation Jg. 74 (2002) Nr. 3, S. 373 - 380Online Volltext: dx.doi.org/
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Establishment of liver transplantation in woodchuckIn: Transplantation Proceedings Jg. 34 (2002) Nr. 6, S. 2314 - 2315Online Volltext: dx.doi.org/
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The potential role of bone marrow transplantation in augmenting donor-derived immunity to hepatitis B after rat liver transplantationIn: Liver Transplantation Jg. 8 (2002) Nr. 4, S. 397 - 404Online Volltext: dx.doi.org/ (Open Access)
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Large nontransplanted hepatocellular carcinoma in woodchucks : Treatment with adenovirus-mediated delivery of interleukin 12/B7.1 genesIn: Journal of the National Cancer Institute Jg. 93 (2001) Nr. 6, S. 472 - 479Online Volltext: dx.doi.org/ (Open Access)