Objective To review the common genotyping techniques of Chlamydia trachomatis in terms of their principles,characteristics,applications and limitations.Data sources Data used in this review were mainly from English li...Objective To review the common genotyping techniques of Chlamydia trachomatis in terms of their principles,characteristics,applications and limitations.Data sources Data used in this review were mainly from English literatures of PubMed database.The search terms were ＂Chlamydia trachomatis＂ and ＂genotyping＂.Meanwhile,data from World Health Organization were also cited.Study selection Original articles and reviews relevant to present review＇s theme were selected.Results Different genotyping techniques were applied on different occasions according to their characteristics,especially in epidemiological studies worldwide,which pushed the study of Chlamydia trachomatis forward greatly.In addition,summaries of some epidemiological studies by genotyping were also included in this work for reference and comparison.Conclusions A clear understanding of common genotyping techniques could be helpful to genotype C.trachomatis more appropriately and effectively.Furthermore,more studies on the association of genotypes of Ch/amydia trachomatis with clinical manifestations should be performed.展开更多
HLA-A＊02 is the most prevalent and polymorphic major histocompatibility complex （MHC） allele family in humans. Functional differences have been revealed among subtypes, demanding further subtyping of HLA-A＊02 in b...HLA-A＊02 is the most prevalent and polymorphic major histocompatibility complex （MHC） allele family in humans. Functional differences have been revealed among subtypes, demanding further subtyping of HLA-A＊02 in basic and clinical settings. However, the fast growing polymorphisms render traditional primeror probe-based typing methods impractical and result in increasing ambiguities in direct sequence-based typing. In this study, we combined group-specific amplification and mono-allelic sequencing to design and validate a simple scheme for the complete screening and accurate subtyping of all 540 reported HLA-A＊02 alleles. This scheme could be performed in routine labs to facilitate studies with an interest in HLA-A＊02.展开更多
文摘Objective To review the common genotyping techniques of Chlamydia trachomatis in terms of their principles,characteristics,applications and limitations.Data sources Data used in this review were mainly from English literatures of PubMed database.The search terms were ＂Chlamydia trachomatis＂ and ＂genotyping＂.Meanwhile,data from World Health Organization were also cited.Study selection Original articles and reviews relevant to present review＇s theme were selected.Results Different genotyping techniques were applied on different occasions according to their characteristics,especially in epidemiological studies worldwide,which pushed the study of Chlamydia trachomatis forward greatly.In addition,summaries of some epidemiological studies by genotyping were also included in this work for reference and comparison.Conclusions A clear understanding of common genotyping techniques could be helpful to genotype C.trachomatis more appropriately and effectively.Furthermore,more studies on the association of genotypes of Ch/amydia trachomatis with clinical manifestations should be performed.
基金The authors would like to thank Jueqin Yang for assistance with sample preparation. The authors would also like to thank the Fred Hutchinson Cancer Research Center IHWG Cell and Gene Bank for providing reference genomic DNA samples. This work was supported through grants from the National Natural Science Foundation of China （NSF-30830093） and the National Key Program （973） for Basic Research of China （2009CB522409） to HJ. Supplementary Information accompanies the paper on Cellular ＆ Molecular Immunology website.
文摘HLA-A＊02 is the most prevalent and polymorphic major histocompatibility complex （MHC） allele family in humans. Functional differences have been revealed among subtypes, demanding further subtyping of HLA-A＊02 in basic and clinical settings. However, the fast growing polymorphisms render traditional primeror probe-based typing methods impractical and result in increasing ambiguities in direct sequence-based typing. In this study, we combined group-specific amplification and mono-allelic sequencing to design and validate a simple scheme for the complete screening and accurate subtyping of all 540 reported HLA-A＊02 alleles. This scheme could be performed in routine labs to facilitate studies with an interest in HLA-A＊02.
