ABSTRACT: Comparative analysis of transcriptional profiles of adult Schistosoma japonicum from different laboratory animals and the natural host, water buffalo
Project description:To investigate microRNAs (miRNAs) involving in the regulation of the schistosome development and survival, we compared miRNA expression profiles of adult Schistosoma japonicum derived from yellow cattle and water buffalo using high-throughput sequencing with Illumina Hiseq Xten.
Project description:The microarray analysis of gene expression difference between cattle and buffalo, provide us a profiling as a new platform to discover the difference between their compatibility with schistosoma japonicum.
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.
Project description:Analysis of differentially expressed gene of different parasite stage helps to determine which genes are likely to be the key players in transition through a developmental stage, thus help to further understand schistosome biology and host-parasite relationship, facilitate the discovery of novel gene products than could represent targets for the development of new drugs and vaccines to control schitosomiasis.Samples were analyzed at cercariae, egg and adult worm stage. Keywords = Schistosoma japonicum Keywords = different development stage Keywords = differentially expressed gene Keywords: time-course
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).
Project description:Although numerous researches on schistosomiasis japonica have been performed using laboratory animal models, the comparison of gene expression profiles of S. japonicum from the different laboratory animals and natural hosts is still a gap. We systematically compared the gene expression profiles of schistosomes from different laboratory animals and water buffaloes. The findings of this study provide the basis for schistosomiasis research in different mammalian hosts at transcriptional level and valuable resource for the screening of anti-schistosomal intervention targets.
