Project description:This project focuses on the neurotoxic effects of methamphetamine (METH) abuse and its impact on the central nervous system. Methamphetamine is a highly addictive synthetic drug that can cause severe cognitive and behavioral changes, as well as neurodegenerative diseases. We conducted transcriptome sequencing on METH-treated primary neurons from tree shrews to investigate the underlying mechanisms of METH-induced neuronal damage.
Project description:Deep sequencing of mRNA from Chinese tree shrew; Chinese tree shrew (Tupaia belangeri chinensis) is placed in Order Scandentia and embraces many unique features for a good experimental animal model. Currently, there are many attempts to employ tree shrew to establish model for a variety of human disorders such as social stress, myopia, HCV and HBV infection, and hepatocellular carcinoma .We present here a publicly available annotated genome sequence for Chinese tree shrew. Phylogenomic analysis of tree shrew and other mammalians highly supported its close affinity to primates. Characterization of key factors and signaling pathways of the nervous and immune systems in tree shrews showed that this animal had common and unique features, and had essential genetic basis for being a promising model for biomedical researches. Analysis of ploy(A)+ RNA of different specimens:kidney, pancreas, heart, liver, brain, testis and ovary form Chinese tree shrew
Project description:Deep sequencing of mRNA from Chinese tree shrew; Chinese tree shrew (Tupaia belangeri chinensis) is placed in Order Scandentia and embraces many unique features for a good experimental animal model. Currently, there are many attempts to employ tree shrew to establish model for a variety of human disorders such as social stress, myopia, HCV and HBV infection, and hepatocellular carcinoma .We present here a publicly available annotated genome sequence for Chinese tree shrew. Phylogenomic analysis of tree shrew and other mammalians highly supported its close affinity to primates. Characterization of key factors and signaling pathways of the nervous and immune systems in tree shrews showed that this animal had common and unique features, and had essential genetic basis for being a promising model for biomedical researches.
Project description:Although continual expansion of the brain during primate evolution accounts for our enhanced cognitive capabilities, the drivers of brain evolution have scarcely been explored. Tree shrews are closely related to primates that comparing their brains to primate brains at the single-cell level will provide new insights into the evolution of the primate brain.
Project description:In order elucidate the key signaling pathways in choroidal neovascularization, we induced choroidal angiogenesis by laser photocoagulation in 12 tree shrews and obtained mRNA profiles of their choroids and retinas by high-throughput transcriptome sequencing. Gene ontology(GO) and kyoto encyclopedia of genes and genomes(KEGG) enrichment analysis, hierarchical cluster analysis, weighted gene co-expression network analysis, protein-protein interaction (PPI) network analysis, and reverse transcription quantitative PCR (RT-qPCR) were performed.
Project description:Proteomic investigation of immune response of Lung Tissue from Lipopolysaccharide-induced Acute Respiratory Distress Syndrome in Tree Shrews
Project description:1-Methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) is a neurotoxin that can cause gastrointestinal ulcers by affecting dopamine levels. Therefore, MPTP has been considered a toxic substance that causes gastric ulcer disease in experimental animals. In this study, tree shrews were used as the animal model of gastric mucosa injury, and MPTP was intraperitoneally injected for 13 weeks, while tree shrews were not injected as the control group. Under the light microscope, local congestion or diffuse bleeding points of gastric mucosa and multiple redness and swelling bleeding symptoms on the inner wall were observed in the treatment group, as well as immune cell infiltration was found in HE staining, but no such phenomenon was observed in the control group. In order to explore the molecular basis of changes in MPTP induced gastric mucosa injury, the transcriptome and proteome data of gastric mucosa were analyzed. We observed significant differences in mRNA and protein expression levels under the influence of MPTP. The changes in mRNA and proteins are related to increased immune infiltration, cellular processes and angiogenesis. More differentially expressed genes play a role in immune function, especially the candidate genes RPL4 and ANXA1 with significant signal and core role. There are also differentially expressed genes that play a role in mucosal injury and shedding, especially candidate genes GAST and DDC with certain signaling and corresponding functions. Understanding the factors and molecular basis that affect the expression of related genes is crucial for coping with Emotionality gastric mucosa injury disease and developing new treatment methods to establish the ability to resist disease.