Project description:White Leghorn chicken eggs were incubated for 18 days and dissected. Brain, breast muscle, bursa Fabricii, heart, kidney, liver, lung, ovary, spleen, and testicle tissues were sampled.
Project description:Transcriptional profiling of chicken spleen tissues from Marek's disease virus (MDV) infected and non-infected control individuals from three inbred chicken lines 63, 72, RCSM with varying disease resistance characteristics. Line 63 is highly resistant; line 72 is highly susceptible; and line RCSM has intermediate resistance. Our goal was to investigate the genetic basis of systemic variation in disease resistance in these genetically similar individuals. Three time points were chosen at different stages of disease progression - 5 days post-infection (dpi) - early cytolytic phase; 10 dpi - latent phase; and 21 dpi - late cytolytic phase with 4 replicates at each stage.
Project description:8 weeks old Chickens (White leghorn (LSL), 4 per group), were i.v. injected every three hours with 1x10^7 Units recombinant chicken interferon alpha to obtain a plasma concentration similar to the amount of type I IFN produced during natural infection. Three (1 IFN injection), six (2 injections) and nine (three injections) hours after the first injection spleen and lung of the birds were sampled and subjected to microarray analysis using Agilent 4x44k chicken arrays customized with a multitude of immune genes (e.g. chemokines and chemokine receptors, cytokines and cytokine receptors). Birds receiving buffer only served as control.