Project description:The mRNA expression of antimony resistant strains of Leishmania donovani was compared to the expression of the sensitive Leishmania donovani.
Project description:Mouse models were infected with Leishmania donovani and the effects were observed over multiple passages to observe the macrophage-parasite interaction
Project description:The mRNA expression of antimony resistant strains of Leishmania donovani was compared to the expression of the sensitive Leishmania donovani. The antimony resistant and sensitive Leishmania donovani were grown in complete M199 medium with 10% FCS and Penicillin streptomycin mixture. At stationary phase (5 day culture) cells were harvested in sterile Phosphate buffered saline and used for RNA isolation.
Project description:Monastrol treatment of Leishmania donovani infected macrophages Macrophages were infected with Leishmania donovani and treated with monastrol to look for signalling molecules
Project description:Monocyte derived dendritic cells (MDDC) were infected with Leishmania major or Leishmania donovani parasites and collected at 4, 8, and 24 hours post-infection to analyze the differential effects those parasite species have on human host cell gene expression over time.
Project description:In this study, we examined the transcriptome of Leishmania donovani promastigotes and axenic amastigotes to identify differentially regulated mRNAs utilizing the serial analysis of gene expression Keywords: stage differentiation; axenic amastigotes
Project description:Monocyte derived dendritic cells (MDDC) were infected with Leishmania major or Leishmania donovani parasites and collected at 4, 8, and 24 hours post-infection to analyze the differential effects those parasite species have on human host cell gene expression over time. Monocyte derived dendritic cells (MDDC) were generated from blood buffy coats collected from five anonymous healthy human donors and infected 10:1 (parasite to host cell) with Leishmania major Friedlin V1 strain or Leishmania donovani 1S strain parasites, where after 4, 8, or 24 hours total RNA was harvested from cells, cDNA generated, and hybridized to human gene transcipt expression arrays to assess differential host cell gene transcriptional expression differences relative to uninfected cells.
Project description:Murine bone marrow derived macrophages were infected with Leishmania major or Leishmania donovania promastigotes, allowed to phagocytose latex beads or not treated. Gene expression profiles were compared to identify i) the effect of Leishmania infection; ii) the differences in effects between L. major and L. donovani; and iii) the effect of pahgocytosis of latex beads.
Project description:We report the first systematic study of the effect of Hsp90 inhibition on the global protein synthesis in Leishmania parasites using an integrated chemical biology approach. Heat shock protein 90 (Hsp90) is a conserved molecular chaperone responsible for the folding of newly synthesised proteins. It is regarded as a master regulator of protein homeostasis of the cell, and its inhibition has been proposed to affect functions of a large array of its client proteins. We showed that the Hsp90 inhibition affects synthesis of many Leishmania proteins, with important chaperones and virulence factors showing an overall increased relative expression whilst many ribosomal proteins showing a down-regulation. This study defines the Leishmania parasite’s response to Hsp90 inhibition at its nascent global protein synthesis and provides a rich resource for future studies on Leishmania biology and antileishmanial drug development.
