Rapid determination of human cytomegalovirus susceptibility to ganciclovir directly from clinical specimen primocultures
نویسندگان
چکیده
منابع مشابه
Rapid detection directly from patient serum samples of human cytomegalovirus UL97 mutations conferring ganciclovir resistance.
Ganciclovir-resistant cytomegalovirus can cause disease and death in transplant recipients. We describe here a rapid PCR- and sequencing-based assay for ganciclovir resistance that can be performed in 1 to 2 working days directly from patient specimens, without the need for amplification of the virus by cell culture. An evaluation of 120 sequential samples submitted for clinical testing reveale...
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Rapid, quantitative, and objective determination of the susceptibilities of human cytomegalovirus (HCMV) clinical isolates to ganciclovir has been assessed by an assay that uses a fluorochrome-labeled monoclonal antibody to an HCMV immediate-early antigen and flow cytometry. Analysis of the ganciclovir susceptibilities of 25 phenotypically characterized clinical isolates by flow cytometry demon...
متن کاملFlow cytometric determination of ganciclovir susceptibilities of human cytomegalovirus clinical isolates.
A flow cytometric assay has been developed for the measurement of susceptibilities to ganciclovir of laboratory strains and clinical isolates of human cytomegalovirus (HCMV). The assay uses fluorochrome-labeled monoclonal antibodies to HCMV immediate-early and late antigens to identify HCMV-infected cells and flow cytometry to detect and quantitate the number of antigen-positive cells. By this ...
متن کاملCytomegalovirus UL97 phosphotransferase mutations that affect susceptibility to ganciclovir.
Most ganciclovir (GCV)-resistant cytomegalovirus (CMV) isolates contain UL97 gene mutations at codon 460 or 520 or between codons 590 and 607, where an increasing variety of mutations have been detected, including deletions. To determine their phenotypic effect, 9 UL97 mutations not previously studied were transferred to drug-sensitive laboratory CMV strains that contained unique restriction si...
متن کاملCytomegalovirus UL97 mutations affecting cyclopropavir and ganciclovir susceptibility.
Among the 7 most common UL97 mutations encountered in ganciclovir-resistant clinical cytomegalovirus isolates, the associated cyclopropavir cross-resistance varies from insignificant (L595S) to substantial (M460I and H520Q) as determined by recombinant phenotyping. Mutations M460I and H520Q were preferentially selected in vitro under cyclopropavir and conferred 12- to 20-fold increases in 50% e...
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ژورنال
عنوان ژورنال: Journal of Clinical Microbiology
سال: 1992
ISSN: 0095-1137,1098-660X
DOI: 10.1128/jcm.30.11.2917-2920.1992