Project description:Porcine reproductive and respiratory syndrome (PRRS), caused by PRRS virus (PRRSV), is the most economically important disease in pig populations. Lung damage is one major pathological condition following PRRSV infection, often leading to animal death. In vivo, PRRSV productive infection occurs predominately in alveolar macrophages of the lung. Here, transcriptome profiling of pulmonary alveolar macrophages (PAMs) from Tongcheng piglets pre- and post- infection of highly pathogenic PRRSV has been performed using porcine Affymetrix GeneChip. All animal procedures were performed according to protocols approved by the Biological Studies Animal Care and Use Committee of Hubei Province, China. Piglets used in this study were free from PRRSV, pseudorabies virus (PRV) and porcine circovirus type 2 (PCV2) determined by ELISA test for serum antibodies. Twelve of 5-week-old boars were obtained from three litters (four piglets per litter), and raised in pathogen-free facilities. In order to perform a paired experiment, every four full-sib individuals were divided equally into two groups: one infected group and one control group with 6 piglets in each group. The infected groups were challenged with PRRSV-Wuh2 (3 ml/15 kg, 10-5 TCID50/ml) by intramuscular inoculation. Slaughters were carried out at 0 days post-infection (dpi) for uninfected (control) groups, and at 5 or 7 dpi for infected groups. The PAMs for microarray analysis were collected by bronchoalveolar lavage from three uninfected pigs and three infected pigs at 5 dpi. Total of 6 microarrays have been hybridized in this experiment.
Project description:To assess in order to assess potential disparities in gene expression due to developmental differences we performed a comparison between hippocampus and heart tissues from rat and mouse pup (one week old) and adult (10 week old) animals.
Project description:To assess in order to assess potential disparities in gene expression due to developmental differences we performed a comparison between hippocampus and heart tissues from rat and mouse pup (one week old) and adult (10 week old) animals.
Project description:In the present study, we catalogued the proteome of postsynaptic density (PSD) derived from the hippocampus of three-week old (P19) mice. samples in 100 min gradient time.
Project description:In the present study, we catalogued the proteome of postsynaptic density (PSD) derived from the hippocampus of three-week old (P19) mice. samples in 100 min gradient time.
Project description:An PRRSV specific IgG-type Mab-PN9cx3, demonstrated broad recognition and neutralization activity against both PRRSV-1 and PRRSV-2 isolates in vitro, was tested for in vivo protection experiments. Administration of Mab-PN9cx3 20mg in piglets significantly alleviated the pathological changes in lungs and decreased virus loads in PAMs after challenging with two heterogenous PRRSV isolates: HP-PRRSV-JXA1 and PRRSV NADC-30 like HNhx when compared with piglets inoculated virus . Transcriptome profile for porcine alveolar macrophage of different groups were analyzed via RNA-sequencing.
Project description:Peripheral blood transcriptome is an important intermediate data source for investigation of the mechanism of Salmonella invasion, proliferation, and transmission but its development in pig is quite limited. We challenged four-week-old piglets (Duroc × Landrace × Yorkshire crossbred) with Salmonella enterica serovar Typhimurium LT2 and investigated the peripheral blood miRNA expression profile before treatment (d0) and at 2 days post inoculation (dpi) using deep sequencing technology.
Project description:To investigate the gene expression level changes in the whole genome scale in porcine alveolar macrophage collected from the piglets individually or dually infected with PRRSV and Mph The results in this study will be further described in Bin li et al., 2021. Veterinary microbiology
