TY - JOUR U1 - Zeitschriftenartikel, wissenschaftlich - begutachtet (reviewed) A1 - Schneidewind, Laila A1 - Neumann, Thomas A1 - Knoll, Florian A1 - Zimmermann, Kathrin A1 - Smola, Sigrun A1 - Schmidt, Christian Andreas A1 - Krüger, William T1 - Are the Polyomaviruses BK and JC Associated with Opportunistic Infections, Graft-versus-Host Disease, or Worse Outcomes in Adult Patients Receiving Their First Allogeneic Stem Cell Transplantation with Low-Dose Alemtuzumab? JF - Acta Haematologica N2 - Background: The association of polyomaviruses BK and JC with other opportunistic infections and graft-versus-host disease (GvHD) in allogeneic stem cell transplantation is controversially discussed. Methods: We conducted a retrospective study of 64 adult patients who received their first allogeneic stem cell transplantation between March 2010 and December 2014; the follow-up time was 2 years. Results: Acute leukemia was the most frequent underlying disease (45.3%), and conditioning included myeloablative (67.2%) and nonmyeloablative protocols (32.8%). All patients received 10 mg of alemtuzumab on day -2 (20 mg in case of mismatch) as GvHD prophylaxis. Twenty-seven patients (41.5%) developed cytomegalovirus (CMV) reactivation. BKPyV-associated hemorrhagic cystitis was diagnosed in 10 patients (15.6%). Other opportunistic infections caused by viruses or protozoa occurred rarely (<10%). There was no association of BKPyV or JCPyV with CMV reactivation, Epstein-Barr virus reactivation, human herpes virus 6, or parvovirus B19 infection requiring treatment. There was a significant correlation of BKPyV-associated hemorrhagic cystitis with toxoplasmosis (p = 0.013). Additionally, there was a significant link of simultaneous BKPyV and JCPyV viruria with toxoplasmosis (p = 0.047). BKPyV and JCPyV were not associated with GvHD, relapse, or death. Conclusion: We found no association of BKPyV or JCPyV with viral infections or GvHD. Only the correlation of both polyomaviruses with toxoplasmosis was significant. This is a novel and interesting finding. KW - - KW - Adult allogeneic stem cell transplantation KW - BK-associated hemorrhagic cystitis KW - BK polyomavirus KW - Graft-versus-host disease KW - Transplantation-associated infections Y1 - 2017 UN - https://nbn-resolving.org/urn:nbn:de:gbv:9-opus-31550 SN - 0001-5792 SS - 0001-5792 SN - 1421-9662 SS - 1421-9662 U6 - https://doi.org/10.1159/000468972 DO - https://doi.org/10.1159/000468972 PM - 28591758 VL - 138 IS - 1 SP - 3 EP - 9 PB - S. Karger AG CY - Basel, Switzerland ER -