Rhesus macaque model of hCoV-EMC respiratory infection
Ontology highlight
ABSTRACT: Microarray analysis of peripheral blood mononuclear cells (PBMCs), lungs, and lung lesions collected over the course of hCoV-EMC infection of 6 rhesus macaques. 6 rhesus macaques were infected intratracheally with hCoV-EMC. PBMCs were collected at days 0, 1, 3, and 6, and lungs were collected from serial sacrifices of 3 animals each at day 3 and day 6. Infection produced a mild-moderate, self-limiting respiratory infection, and was not lethal. We performed microarray analysis (using Agilent Rhesus arrays) on all lungs, lung lesions, and PBMCs collected for the study.
Project description:Microarray analysis of peripheral blood mononuclear cells (PBMCs), lungs, and lung lesions collected over the course of hCoV-EMC infection of 6 rhesus macaques.
Project description:Differential expression was determined in Calu-3 cells between mock infected and infection with either Human coronavirus EMC and SARS coronavirus at different times post infection. Calu-3 2B4 cells were infected with Human Coronavirus EMC 2012 (HCoV-EMC) or mock infected. Samples were collected 0, 3, 7, 12, 18 and 24 hpi. There are 3 mock and 3 infected replicates for each time point, except for 12 hpi for which there are only 2 infected replicates (one replicate did not pass RNA quality check). There were no mock sampes at 18 hpi, and therefore infected samples at 18 hpi were compared with mocks at 24 hpi. For direct comparison with SARS-CoV infected cells, raw data from HCoV-EMC experiments were quantile normalized together with the SARS-CoV dataset (GEO Series accession number GSE33267).
Project description:The objective of this study is to characterize the response to newly emerged, highly pathogenic H7N9 influenza virus isolated from human patients in 2013 in China. This study examines the pathogenesis of H7N9 influenza in cynomolgus macaques. The study compares lung lesions to adjacent right lower lobe lung tissue in animals necropsied at days 3 and 6 post-infection (n=4 animals/timepoint). 3-4 lesions from each animal were collected and equal amounts of pooled RNA from lesions from individual animals at each time point were used for microarray. 8 cynomolgus macaques were infected via oral, intraocular, intranasal, and intratracheal administration of a combined total of 7x10^6 TCID50. Lungs, lung lesions, and trachea samples were collected from serial sacrifices of 4 animals each at day 3 and day 6. Infection produced a moderate-severe, self-limiting respiratory infection, and was not lethal. We performed microarray analysis (using Agilent Rhesus arrays) on all lungs, lung lesions, and trachea collected for the study.
Project description:Viral pneumonia has been frequently reported during early stages of influenza virus pandemics and in many human cases of highly pathogenic avian influenza (HPAI) H5N1 virus infection. To better understand the pathogenesis of this disease, we produced non-lethal viral pneumonia in rhesus macaques by using an HPAI H5N1 virus (A/Anhui/2/2005; referred to as Anhui/2). Infected macaques were monitored for 14 days, and tissue samples were collected at 6 time points for virologic, histopathologic and transcriptomic analyses. Thirteen colony-bred male or female rhesus macaques (Macaca mulatta), aged from 2.5 to 3.5 years and ranging in weight from 2.8 to 4.4 kg, were used for experiments. Twelve macaques were individually infected intratracheally with 10^7 EID50 of Anhui/2 in 4 ml of phosphate-buffered saline (PBS). At 6 h, 12 h, 1 d, 3 d, 6 d, and 14 d post-infection (p.i.), two animals per time-point were euthanized under anesthesia and necropsies were performed. Lung samples were collected and stored in RNAlater (Ambion, Austin, USA) at -80M-BM-0C for RNA analyses. The remaining macaque (mock-infected) was inoculated with 4 ml of PBS intratracheally and euthanized at 6 h p.i. Lung tissues from the mock-infected animal were collected and stored as described.
Project description:Microarray analysis of lungs (right lower lobe) on day 3 post-infection with MERS-CoV with and without treatment beginning 8 h post-infection with intravenous type I interferon (IFN) and ribavirin (RBV). Dosages are as follows: IFN a2b 5 million IU/kg s.c. q8, RBV loading dose 50mg/kg i.v.; RBV maintenance dose 10mg/kg i.m. q8 6 rhesus macaques were infected with 7x10e6 TCID50 total (4x10e6 intratracheal, 1x10e6 oral, 1x10e6 intranasal, 1x10e6 intraocular)
Project description:The objectives of this study were to determine the molecular mechanisms of host response during transition from primary to chronic SIV infection in the oral mucosa of rhesus macaques Transcriptioinal profiles were determined for 2 rhesus macaques infected for 6 wk with SIVmac251 and compared to profiles of 3 uninfected healthy controls
Project description:Microarray analysis of PBMC from cynomolgus macaques collected longitudinally over the course of infection with Lassa-Josiah, Lassa-Z132, Lassa-SorombaR, or Lujo viruses (n=3 animals/infection condition). 3 macaques from each group were infected intramuscularly with 10^4 PFU of Lassa-Josiah, Lassa-Z132, Lassa-SorombaR, or Lujo viruses. PBMC were collected at days 1, 4, 7, 10, 13, and 29 (for surviving animals). We performed microarray analysis on PBMC samples using Agilent rhesus macaque arrays on all samples, as well as on PBMC from 3 uninfected animals for use as a control.
Project description:Immunization of macaques with simian immunodeficiency virus with deletions in nef (SIV?nef) has been shown to elicit protective immunity to infection by pathogenic SIV, yet our understanding of the mechanisms that orchestrate protection and prevent pathogenesis remains limited. In the study, we utilize whole-genome transcriptional profiling to reveal molecular signatures of protective immunity in circulating CD8+ T cells of rhesus macaques vaccinated with SIVmac239?nef and challenged with pathogenic SIVmac251. Microarrays were used to characterize changes in gene expression in blood CD8+ T cells that occur following vaccination of rhesus macaques with attenuated SIV?nef and subsequent challenge with pathogenic SIVmac251, in comparison to corresponding changes in healthy controls and unvaccinated animals infected with pathogenic SIVmac251 CD8+ T cells were isolated by magnetic beads from the blood of healthy uninfected macaques, macaques vaccinated with SIV?nef, and unvaccinated controls infected with SIVmac251, and used for RNA extraction and hybridization on Affymetrix microarrays. Blood samples from vaccinated animals were collected prior to vaccination, at 3, 20, and 40 weeks following vaccination. After the 40 week vaccination period, macaques were challenged with SIVmac251, and blood was again collected at 3 weeks following challenge. Blood was collected from the unvaccinated controls at 3 weeks following infection with SIVmac251
Project description:To find the differences in innate immune response between nonpathogenic and pathogenic SIV infection, we examined transcriptome in PBMCs from macques infected with pathogenic or nonpathogenic SIV. Juvenile macaques were intavenousy infected with SIVmac239 or M-bM-^HM-^F5G. Blood samples were collected at 1 week and 3 weeks pi. Total RNA from the PBMCs were used for the microarray analysis.