Application of a Agilent hydatid 4x44k - cDNA microarray for identification of dihydroartemisinin targeting genes in Echinococcus granulosus larval protoscoleces

A cDNA microarray composed of 9306 uniEST probes was constructed andapplied to detect the gene expression profile of protoscoleces of E. granulosus treated with dihydroartemisinin in vitro, respectively. Compared with the untreated protoscoleces, 752 genes were up-regulated and 269 genes were down-regulated in protoscoleces treated with dihydroartemisinin. The differential expression genes in protoscoleces induced by dihydroartemisinin were clustered into molecular metabolic process, cell development and differentiation, anatomical structure morphogenesis and formation, and were enriched in calcium signaling pathway, protein processing in endoplasmic reticulum (ER), molecular metabolism and synthesis, Wnt signaling pathway, MAPK signaling pathway, TGF-beta signaling pathway. Isolated E. granulosus protoscoleces were treated with dihydroartemisinin and was extracted of total RNA using the TRIZOL Reagent according to the manufacturer's instructions. Gene-expression profiling was performed for each RNA sample separately on the GeneChip of Echinococcus granulosus Genome Array (Capitalbio) at CapitalBio Corporation (Beijing, China).