D Di Luca, P Mirandola, T Ravaioli, B Bigoni, E Cassai
{"title":"HHV-6变异在人体组织中的分布。","authors":"D Di Luca, P Mirandola, T Ravaioli, B Bigoni, E Cassai","doi":"","DOIUrl":null,"url":null,"abstract":"<p><p>Human herpesvirus (HHV)-6 strains segregate into two variants (HHV-6A and HHV-6B), closely related to each other but clearly and easily distinguishable. These two HHV-6 variants differ in their ability to grow in T-cell lines, have distinctive patterns of DNA restriction fragments, and show specific reactivities with some monoclonal antibodies. The degree of DNA homology between variants ranges from 97% in the most conserved region to 75% in the immediate early region 1. HHV-6B is the etiologic agent of exanthema subitum but HHV-6A has not yet been clearly associated with any human pathology. HHV-6 sequences are frequently detected by the polymerase chain reaction (PCR) in healthy and pathological tissues. HHV-6B is more prevalent in peripheral blood mononuclear cells and in lymphatic tissue. The prevalence of HHV-6A may be greater in some pathological conditions such as Kaposi's sarcoma, and in skin biopsies. Results so far available support the hypothesis that HHV-6 variants may have different epidemiologies.</p>","PeriodicalId":77176,"journal":{"name":"Infectious agents and disease","volume":"5 4","pages":"203-14"},"PeriodicalIF":0.0000,"publicationDate":"1996-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Distribution of HHV-6 variants in human tissues.\",\"authors\":\"D Di Luca, P Mirandola, T Ravaioli, B Bigoni, E Cassai\",\"doi\":\"\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><p>Human herpesvirus (HHV)-6 strains segregate into two variants (HHV-6A and HHV-6B), closely related to each other but clearly and easily distinguishable. These two HHV-6 variants differ in their ability to grow in T-cell lines, have distinctive patterns of DNA restriction fragments, and show specific reactivities with some monoclonal antibodies. The degree of DNA homology between variants ranges from 97% in the most conserved region to 75% in the immediate early region 1. HHV-6B is the etiologic agent of exanthema subitum but HHV-6A has not yet been clearly associated with any human pathology. HHV-6 sequences are frequently detected by the polymerase chain reaction (PCR) in healthy and pathological tissues. HHV-6B is more prevalent in peripheral blood mononuclear cells and in lymphatic tissue. The prevalence of HHV-6A may be greater in some pathological conditions such as Kaposi's sarcoma, and in skin biopsies. Results so far available support the hypothesis that HHV-6 variants may have different epidemiologies.</p>\",\"PeriodicalId\":77176,\"journal\":{\"name\":\"Infectious agents and disease\",\"volume\":\"5 4\",\"pages\":\"203-14\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1996-10-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Infectious agents and disease\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Infectious agents and disease","FirstCategoryId":"1085","ListUrlMain":"","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Human herpesvirus (HHV)-6 strains segregate into two variants (HHV-6A and HHV-6B), closely related to each other but clearly and easily distinguishable. These two HHV-6 variants differ in their ability to grow in T-cell lines, have distinctive patterns of DNA restriction fragments, and show specific reactivities with some monoclonal antibodies. The degree of DNA homology between variants ranges from 97% in the most conserved region to 75% in the immediate early region 1. HHV-6B is the etiologic agent of exanthema subitum but HHV-6A has not yet been clearly associated with any human pathology. HHV-6 sequences are frequently detected by the polymerase chain reaction (PCR) in healthy and pathological tissues. HHV-6B is more prevalent in peripheral blood mononuclear cells and in lymphatic tissue. The prevalence of HHV-6A may be greater in some pathological conditions such as Kaposi's sarcoma, and in skin biopsies. Results so far available support the hypothesis that HHV-6 variants may have different epidemiologies.