Project description:We have used a Schistosoma japonicum infected murine model with in vivo sub-lethal dosages of praziquantel against adult parasites. Differential gene expression of parasites was followed between 30 minutes and 24 hours post- drug administration, using a whole transcriptome microarray platform. Differential gene expression was considered separately between parasite gender.
Project description:We have used a Schistosoma japonicum infected murine model with in vivo sub-lethal dosages of praziquantel against adult parasites. Differential gene expression of parasites was followed between 30 minutes and 24 hours post- drug administration, using a whole transcriptome microarray platform. Differential gene expression was considered separately between parasite gender. Total RNA was isolated from adult (7 week post cercarial challenge) Schistosoma japonicum male and females. Gene expression was determined through hybridisation on an Agilent custom designed oligo microarray.
Project description:The gogal of this study is to use RNA-Seq to systematically investigate the dynamics of the liver transcriptome over Schistosoma japonicum infection.
Project description:The gogal of this study is to use RNA-Seq to systematically investigate the dynamics of the liver transcriptome over Schistosoma japonicum infection.
Project description:Chinese and Philippine strains of the blood fluke Schistosoma japonicum present clear and distinctive phenotypes in areas of fecundity, pathology, drug sensitivity and immunology. Despite these differences large scale sequencing efforts have focused solely on Chinese mainland strain of the parasite. We have undertaken a comparative genomic hybridisation (CGH) approach to highlight some of the structural differences in the genome of two of the major geographical isolates of S. japonicum. We identified seven distinct regions of the S. japonicum genome that present differential CGH between Chinese and Philippine strains of the blood fluke Schistosoma japonicum, representing either deletion or duplication regions in the Philippine strain. Within these regions, genes that may be related to phenotypical differences are identified and discussed.
Project description:To define the differential gene regulation of adult Schistosoma japonicum in response to host insulin, we utilised a parasite microarray with 38,444 probes representing 19,222 genes. We cultured male and female adult worms were exposed to insulin and glucose; and then parasites were collected at three time-points. There were 1,437 probes (1101 genes) up or down regulated (±1.5 fold change) by insulin after 0.5, 3, 24 hours, with the majority, 712 probes (577 genes) and 623 probes (486 genes) were up-regulated at 24 hour of adding insulin in males and females respectively compared with the control (without insulin). Single colour microarray, insulin treated adult Schistosoma japonicum with technical replicates in duplicate: Separate male and female worms exposed to insulin at 0, 0.5, 3, 24 hours. This study includes 6 control samples for separate male and female worms cultured without insulin at 0, 0.5, 3, 24 hours.
Project description:Chinese and Philippine strains of the blood fluke Schistosoma japonicum present clear and distinctive phenotypes in areas of fecundity, pathology, drug sensitivity and immunology. Despite these differences large scale sequencing efforts have focused solely on Chinese mainland strain of the parasite. We have undertaken a comparative genomic hybridisation (CGH) approach to highlight some of the structural differences in the genome of two of the major geographical isolates of S. japonicum. We identified seven distinct regions of the S. japonicum genome that present differential CGH between Chinese and Philippine strains of the blood fluke Schistosoma japonicum, representing either deletion or duplication regions in the Philippine strain. Within these regions, genes that may be related to phenotypical differences are identified and discussed. Genomic DNA was isolated from adult (7 week post cercarial challenge) Schistosoma japonicum Chinese and Philippine isolates and separate maleand femalesamples comparatively hybridised on an Agilent customn designed oligo microarray.
