期刊
JOURNAL OF MEDICAL VIROLOGY
卷 80, 期 8, 页码 1405-1414出版社
WILEY-LISS
DOI: 10.1002/jmv.21225
关键词
human cytomegalovirus; gB-genotypes; gH-genotypes; lung transplantation; genotype-specific quantitative PCR
类别
Human cytomegalovirus (CMV) is a major cause of disease and transplant dysfunction in lung transplant recipients. Simultaneous emergence of more than one CMV-genotype can occur, and appears to be disadvantageous for the patient. In this study, the dynamics of individual CMV-genotypes in blood and lung was assessed within mixed CMV-genotype populations emerging after lung transplantation. In 69 plasma and 76 bronchoalveolar lavage samples of 16 lung transplant recipients with mixed CMV-genotype infections within the first year posttransplantation each of the major glycoprotein B (gB) and glycoprotein H (gH) genotypes was selectively quantified by genotype-specific quantitative TaqMan assays. The data obtained revealed that individually different genotype dynamics occurred for the individual patients and that the relative levels of the genotypes to each other may change over time. The quantitative development was independent of the specific gB-gH-genotype. In 10 of the 16 lung recipients the patient's individual genotype composition was the same in blood and lung. Genotype development during the follow-up was influenced by antiviral treatment. These data show for the first time that the CMV load used as diagnostic tool after transplantation is not always a constant entity but reflects the sum of the individual CMV-genotype dynamics developing over time.
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