Project description:Adult cardiac progenitor/stem cells (CPC/CSC) are multipotent resident populations involved in cardiac homeostasis and heart repair. Assisted by complementary RNAseq analysis, we defined the proteome fraction associable to specific CPC functions by comparison with human mesenchymal stem cells (MSC), the reference population for cell therapy. Label-free proteomics analysis identified 526 proteins expressed differentially in CPC. Quantitative iTRAQ analysis confirmed differential expression of a substantial proportion of these proteins expressed specifically in CPC relative to MSC. Systems biology analysis defined a clear overrepresentation of several categories related to enhanced angiogenic potential. The CPC plasma membrane compartment is comprised by 1595 proteins including a minimal signature of 167 proteins expressed preferentially in CPC. Of these core CPC functions, we selected a panel of 15 predicted cell surface markers and validated high differential expression of CDH5, CD200 and F11R in CPC.
Project description:We developed a sample preparation method for low-input proteomics using lauryl maltose neopentyl glycol. Using the developed method, we performed proteome analysis of 100ng of HEK293T proteins, coIP samples, and serum extracellular vesicles, and further challenged label-free single-cell proteomics of HEK293F cells.
Project description:This dataset includes raw label-free mass spectrometry proteomics data of different sinonasal tumor entities as well as normal sinonasal tissue. 72 samples were processed on a Q Exactive HF-X instrument coupled to an easy nanoLC 1200 system using one microgram of peptides and an 110 minutes gradient.
Project description:Urinary proteomics studies have primarily focused on identifying markers of chronic kidney disease (CKD) progression. Here, we aimed to specify CKD-related injury markers through proteomics analysis in urine of patients with CKD. Label-free quantitative proteomics analysis based on liquid chromatography-tandem mass spectrometry was performed on urine samples obtained from 6, 9, 11, and 10 patients in health control, CKD stage 1, 3 and 5, respectively.
Project description:Urinary proteomics studies have primarily focused on identifying markers of chronic kidney disease (CKD) progression. Here, we aimed to specify CKD-related injury markers through proteomics analysis in urine of patients with CKD. Label-free quantitative proteomics analysis based on liquid chromatography-tandem mass spectrometry was performed on urine samples obtained from 6, 9, 11, and 10 patients in health control, CKD stage 1, 3 and 5, respectively.
Project description:Using mass spectrometry-based label-free quantitative (LFQ) proteomics analysis of in vitro differentiated murine Th17 and induced T regulatory (iTreg) cells. More than 4000 proteins covering almost all subcellular compartments were detected. Quantitative comparison of the protein expression profiles resulted in the identification of proteins specifically expressed in the Th17 and iTreg cells. Importantly, our combined analysis of proteome and gene expression data revealed protein expression changes that were not associated with changes at the transcriptional level.