Project description:The purpose of this research is to identify and evaluate the global gene expression of the rodent malaria parasites Plasmodium yoelii, Plasmodium berghei and Plasmodium chabaudi blood-stage parasites and specifically compare the blood stage gene expression profiles of samples derived from previous studies on Plasmodium falciparum, Plasmodium vivax and Plasmodium knowlesi Overall design: Mice were infected by intraperitoneal injections of P. berghei ANKA, P. chabaudi AS or P. yoelii 17x parasitized erythrocytes and parasitaemia and parasite stages were monitored by thin blood smears stained with Giemsa. Mice infected with P. chabaudi were highly synchronized and terminal bled every 2 hours under anesthesia over the course of 24 hr. For P. berghei and P. yoelii infection, mice were terminal bleed and the stage-specific parasitized erythrocytes were separated via Nycodenz density gradient. The ring stage interface was isolated, washed and subjected to ex vivo culture, which was then collected every 2 hr over the course of 24 hr over a complete IDC life-cycle. Samples labeled with Cy5 were hybridized against a reference RNA pool labeled with Cy3, consisting of equal amounts of P. yoelii or P. berghei or P. chabaudi RNA from each time point.
Project description:We infected wild type and Elf4 deficient mice with Plasmodium yoelii 17XNL, a non-lethal species, to investigate and compare anti-Plasmodium response of two groups of mice. Overall design: 10-week old wild type and Elf4 deficient mice were intraperitoneally injected with 1x10^5 Plasmodium infected red blood cells as experiment group. Spleen from uninfected mice (Day0) and mice infected for 2 days (Day2) were collected and used to carry out subsequent RNA-seq experiment.
Project description:Plasmodium yoelii YM asexual blood stage parasites express multiple members of the py235 gene family, part of the super-family of genes including those coding for Plasmodium vivax reticulocyte binding proteins and Plasmodium falciparum RH proteins. Dr Tony Holder's laboratory (NIMR, London) has been successful in deleting one of the RH family genes (Py01365) by transfection and insertion of the TgDHFR gene, and cloned the resulting parasite in YM background. The gene expression patterns of the mutant parasite line were compared to that of the wild type YM parasite. ArrayExpress Release Date: 2011-04-25 Publication Title: Targeted Disruption of py235ebp-1: Invasion of Erythrocytes by Plasmodium yoelii Using an Alternative Py235 Erythrocyte Binding Protein Publication Author List: Solabomi A. Ogun, Rita Tewari, Thomas D. Otto, Steven A. Howell, Ellen Knuepfer, Deirdre A. Cunningham, Zhengyao Xu, Arnab Pain, Anthony A. Holder Person Roles: submitter Person Last Name: Service Person First Name: Submission Person Mid Initials: Person Email: firstname.lastname@example.org Person Phone: Person Address: The Wellcome Trust Sanger Institute, Wellcome Trust Genome Campus, Hinxton, Cambridgeshire, CB10 1SA, United Kingdom Person Affiliation: Wellcome Trust Sanger Institute Person Roles: investigator Person Last Name: Holder Person First Name: Anthony Person Mid Initials: A Person Email: email@example.com Person Phone: Person Address: Division of Parasitology, MRC National Institute for Medical Research, London, UK Person Affiliation: MRC National Institute for Medical Research Person Roles: Project Coordinator Person Last Name: Sanders Person First Name: Mandy Person Mid Initials: J Person Email: firstname.lastname@example.org Person Phone: 01223 834244 Person Address: Wellcome Trust Genome Campus,Hinxton,Cambridge. CB10 1SA UK Person Affiliation: Wellcome Trust Sanger Institute Overall design: Experimental Design: genetic_modification_design Experimental Design: in_vivo_design Experimental Design: co-expression_design Experimental Factor Name: GENETICMODIFICATION Experimental Factor Name: GENOTYPE Experimental Factor Type: genetic_modification Experimental Factor Type: genotype
Project description:We infected wild type and Elf4 deficient mice with Plasmodium yoelii 17XNL, a non-lethal species, to investigate and compare anti-Plasmodium response of two groups of mice. Overall design: 10-week old wild type and Elf4 deficient mice were intraperitoneally injected with 1x10^5 Plasmodium infected red blood cells as experiment group. Bone marrow tissues from uninfected mice (Day0) and mice infected for 2 days (Day2) were collected and used to carry out RNA-seq experiment.