Proteomics (Published)

This project serves as a centralized repository for omics datasets published by research groups within the SyNergy Cluster. It encompasses investigations such as proteomics and transcriptomics, which are further divided into individual studies led by SyNergy members. Each study is linked to relevant publications, assays and data files (with links to external repositories).

To explore investigations and their associated studies in more detail, please visit the 'Related items' tab on the Project ...

Loss-of-function mutations in CLN3 cause juvenile Batten disease, featuring neurodegeneration and early-stage neuroinflammation. How loss of CLN3 function leads to early neuroinflammation is not yet understood. Here, we have comprehensively studied microglia from Cln3∆ex7/8 mice, a genetically accurate disease model. Loss of CLN3 function in microglia leads to lysosomal storage material accumulation and abnormal morphology of subcellular organelles. Moreover, pathological proteomic signatures are ...

Ubiquitin carboxyl-terminal hydrolase 19 (USP19) is a unique deubiquitinase, characterized by multiple variants generated by alternative splicing. Several variants bear a C-terminal transmembrane domain that anchors them to the endoplasmic reticulum. Other than regulating protein stability by preventing proteasome degradation, USP19 has been reported to rescue substrates from endoplasmic reticulum-associated protein degradation in a catalytic-independent manner, promote autophagy, and address ...

Ectodomain shedding, which is the proteolytic release of transmembrane proteins from the cell surface, is crucial for cell-to-cell communication and other biological processes. The metalloproteinase ADAM17 mediates ectodomain shedding of over 50 transmembrane proteins ranging from cytokines and growth factors, such as TNF and EGFR ligands, to signalling receptors and adhesion molecules. Yet, the ADAM17 sheddome is only partly defined and biological functions of the protease have not been fully ...

Proteins delivered by endocytosis or autophagy to lysosomes are degraded by exo- and endoproteases. In humans 15 lysosomal cathepsins (CTS) act as important physiological regulators. The cysteine proteases CTSB and CTSL and the aspartic protease CTSD are the most abundant and functional important lysosomal proteinases. Whereas their general functions in proteolysis in the lysosome, their individual substrate, cleavage specificity, and their possible sequential action on substrate proteins have ...

The bone marrow in the skull is important for shaping immune responses in the brain and meninges, but its molecular makeup among bones and relevance in human diseases remain unclear. Here, we show that the mouse skull has the most distinct transcriptomic profile compared with other bones in states of health and injury, characterized by a late-stage neutrophil phenotype. In humans, proteome analysis reveals that the skull marrow is the most distinct, with differentially expressed neutrophil-related ...

Cells were collected and lysed in urea buffer (9 M Urea, 50 mM Tris pH 8, 150 mM NaCl, 1x Roche protease inhibitor cocktail) followed by short sonification. Samples were cleared by centrifugation and protein amounts were adapted. Protein reduction was performed with dithiothreitol (DTT; 5 mM final) for 25 min at 56°C and protein alkylation by the addition of iodoacetamide (14 mM final) for 30 min at room temperature. Protein mixtures were quenched with DTT and diluted 1:5 with 1 M Tris-Hcl, pH ...

The microglial proteome of homozygous Cln3Δex7/8/Δex7/8 was compared with those of littermate control heterozygous (Cln3Δex7/8/+) or wildtype (Cln3+/+) mice at 3 (Cln3Δex7/8/Δex7/8 n=5 vs controls n=7) and 12 months (Cln3Δex7/8/Δex7/8 n=4 vs controls n=5) of age. Microglia were acutely isolated using MACS with CD11b microbeads (Miltenyi Biotec) as previously described in Colombo et al. 36 Sample preparation and mass spectrometric measurements using data independent acquisition were performed as ...

Wild-type (WT) and ADAM17 knockout (KO) mouse embryonic fibroblasts (MEFs) were cultured in Dulbecco’s Modified Eagle’s Medium (DMEM), containing 1% L-Glutamine, 1% Penicilin and Streptomycin, 1% Sodium Pyruvate and 10% Fetal Bovine Serum (FBS) at 37 °C, 5% CO2 (all reagents were purchased from Euroclone, Pero, Italy). HTB94 were kindly provided by Prof Hideaki Nagase, and cultured in DMEM containing 1% L-Glutamine, 1% Penicillin and Streptomycin, 1% Sodium Pyruvate and 10% FBS at 37° C, 5% CO2. ...

HeLa WT and CTS DBLZ-deficient as well as SH-SY5Y WT and CTS DBL-deficient cell clones (each n=6) were seeded 24 h after cell pellet collection. Cells were washed in ice cold PBS and harvested with a cell scraper. A modified RIPA lysis buffer (1% Triton X-100, 0.5% sodium deoxycholate, 0.1% SDS, 150 mM NaCl, 5 mM EDTA, 50 mM TrisHCl pH 8) was used to lyse the cells one ice for 30 min. The supernatant was collected after centrifugation at 16.000 rpm for 10 min at 4°C. 10 μl were used to determine ...

Sample preparation for proteomics analysis was performed as described previously with slight modifications. Briefly, for mouse samples, SDC lysis buffer (2% SDC, 100 mM Tris-HCl pH 8.5) was used to lyse the cell pellets at 95°C for 45 min at 600 rpm in a thermoshaker. For human samples which were fixed in PFA, prior to the SDC lysis buffer step, the samples were first resuspended in 6% SDS buffer, heat denatured, sonicated and then precipitated using 80% acetone overnight in -20°C. Next day, these ...

After respective treatment, cells were washed 2 times with ice-cold DPBS, scraped in PBS and pellets either processed immediately or stored at -80°C. Cells were lysed in RIPA buffer for 30 min on ice. After clearance by centrifugation at 20,000 × g for 10 min at 4 °C, protein concentrations were adjusted using BCA assay. Cleared and adjusted supernatants were incubated overnight on an overhead rotator with preequilibrated streptavidin agarose (Sigma). Next day, beads were washed 2 times with RIPA ...