Project description:We sought to characterize the host response through proteome profiling of nasopharyngeal swab specimens. A mass spectrometer combining trapped ion mobility spectrometry and high-resolution QTOF mass spectrometer with a parallel accumulation-serial fragmentation (PASEF) was deployed for unbiased proteome profiling. First, deep proteome profiling of nasopharyngeal swabs was performed in PASEF-DDA mode, which identified 7,723 proteins and 102,392 peptides that were then used for constructing a spectral library. Subsequently, quantitative proteome profiling was carried out for 90 nasopharyngeal swab samples in diaPASEF mode which resulted in 5,023 protein identifications. Functional analysis revealed two significant features of biological processes of innate immune response and viral life cycle. Overall, we provide the in-depth proteome record from nasopharyngeal swab samples and suggest relevant host response along with proteins playing a pivotal role against viral infection, which would assist for mining promising drug targets in the future.
Project description:A detailed proteomic analysis of the nasopharyngeal/oropharyngeal swab samples collected from normal individuals and individuals infected with SARS-CoV-2 involving high throughput quantitative (iTRAQ) proteomics analysis.
Project description:MicroRNAs are biomarkers of prognosis and survival for many types of cancer. We evaluated whether microRNAs can predict the survival and efficacy of concurrent chemotherapy in nasopharyngeal carcinoma (NPC) patients. We retrospectively analyzed microRNA expression in 312 paraffin-embedded NPC specimens and 18 normal nasopharyngeal tissues using microarray. We found Forty-one microRNAs are differentially expressed between NPC and normal tissues, and a five-microRNA signature can predict survival independent of stage. NPC patients with the low-risk microRNA signature have a favorable response to concurrent chemotherapy. microRNA profiling of nasopharyngeal carcinoma tissues vs. normal nasopharyngeal tissues 312 paraffin-embedded nasopharyngeal carcinoma tissues and 18 paraffin-embedded normal nasopharyngeal tissues
Project description:MicroRNAs are biomarkers of prognosis and survival for many types of cancer. We evaluated whether microRNAs can predict the survival and efficacy of concurrent chemotherapy in nasopharyngeal carcinoma (NPC) patients. We retrospectively analyzed microRNA expression in 312 paraffin-embedded NPC specimens and 18 normal nasopharyngeal tissues using microarray. We found Forty-one microRNAs are differentially expressed between NPC and normal tissues, and a five-microRNA signature can predict survival independent of stage. NPC patients with the low-risk microRNA signature have a favorable response to concurrent chemotherapy.
