Project description:Untargeted-metabolomics LC-MS/MS analysis of commercial natural products pool, analyzed with different DDA settings with the objective to find the best one.
Project description:Natural products exhibit potential as candidates for developing multi-target agents for Alzheimer's disease treatment. The aim of this study is to utilize network-based medicine to identify novel natural products for Alzheimer's disease, and investigate their efficacy and mechanisms of action. In this study, we identified (-)-Vestitol and Salviolone as new potential natural products for treating Alzheimer's disease via an Alzheimer's disease-related pathway-gene network. Both natural products improved the cognition of APP/PS1 transgenic mice, reduced Aβ deposition, and lowered soluble toxic Aβ levels in the brain. Notably, a synergistic effect was observed when the two natural products were combined. Transcriptomic analysis and qRT-PCR experiments revealed that the synergistic mechanism of (-)-Vestitol and Salviolone combination is associated with the regulation of a broader range of AD-related pathways and genes, particularly the neuroactive ligand-receptor interaction pathway and calcium signaling pathway.
Project description:SDF-1 has been reported to trigger ADAMTS4,5 overexpression through activating CXCR4 signaling in chondrocytes. Here we described the transcriptional changes of SDF-1-treatment as well as natural products CXCR4 antagonists treatment.
Project description:We integrated quantitative proteomics and activity-based protein profiling (ABPP) approach to systematically elucidate the involved pathways and the covalent targets of natural products.