Reactivation of human herpesviruses after allogeneic peripheral blood stem cell transplantation and bone marrow transplantation

Leukemia & Lymphoma
Y MaedaM Harada

Abstract

Reactivation of latent herpesviruses results in outcomes ranging from asymptomatic shedding of viruses to severe diseases, depending on the immunological competence of the host. Severe and prolonged suppression of cellular and humoral immunity after hematopoietic stem cell transplantation is accompanied by a high incidence of symptomatic recurrent herpesvirus infections. Subclinical reactivation also occurs more frequently than previously expected in transplant recipients. An increasing viral load in the blood detected by an antigenemia assay or PCR and viral shedding in regional fluids have a predictive value for subsequent diseases. Monitoring of viral DNA in the peripheral blood after allogeneic bone marrow transplantation (allo-BMT) reveals unique temporal profiles of detection for each herpesvirus. Recent studies demonstrate that recovery of CD4+ T cells is enhanced within one month after allogeneic peripheral blood stem cell transplantation (allo-PBSCT) compared to allo-BMT. To clarify whether this immunological advantage could affect the reactivation of human herpesvirus (HHV), we monitored the emergence of viral DNA by a nested-double polymerase chain reaction in peripheral blood leukocytes. Detection rates of HHV-6 DNA...Continue Reading

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Citations

Dec 21, 2007·Clinical Reviews in Allergy & Immunology·Tetsuo Shiohara, Yoko Kano
Apr 24, 2010·International Journal of Hematology·Per Ljungman
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Jun 18, 2015·The Pediatric Infectious Disease Journal·Hiroki MiuraTetsushi Yoshikawa

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