期刊
EUROPEAN JOURNAL OF DERMATOLOGY
卷 20, 期 1, 页码 68-73出版社
JOHN LIBBEY EUROTEXT LTD
DOI: 10.1684/ejd.2010.0821
关键词
amoxicillin; DRESS; drug allergy; human herpesvirus; infectious mononucleosis; virus replication
类别
Amoxicillin is known to induce exanthema in patients with EBV-induced infectious mononucleosis. It is widely recognized that the reactivation of herpesviruses, including HHV-6 (Human Herpesvirus 6) and EBV (Epstein Barr virus) is associated with DRESS (Drug Reaction with Eosinophilia and Systemic Symptoms). We report 7 cases of amoxicillin-induced flare in patients with DRESS induced by other drugs and investigate whether amoxicillin may have a direct effect on HHV-6 replication in vitro. 7 cases of DRESS with amoxicillin-induced flare were retrospectively analysed. The influence of amoxicillin on HHV-6 HST strain replication was studied in vitro in a human T lymphoblastoid MT4 cell line. The viral replication was quantified by immunofluorescence assay and by real-time polymerase chain reaction (PCR). Comparisons were performed using the Student's t test. Amoxicillin-induced flare was observed in 7 patients with DRESS induced by other drugs. In two cases HHV-6 reactivation was studied and was demonstrated by PCR. Amoxicillin neither modified cell viability nor cell proliferation for the range of tested concentrations. Amoxicillin increased the replication of HHV-6 at 25 mu g.mL(-1) and 50 mu g.mL(-1). Amoxicillin may induce a flare of DRESS, possibly by acting directly on herpesvirus replication.
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