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MetabolomicsGlobal 13C tracing and metabolic flux analysis of intact human liver tissue ex vivo
Liver metabolism is central to human physiology and influences the pathogenesis of common metabolic diseases. Yet, our understanding of human liver metabolism remains incomplete, with much of current knowledge based on animal or cell culture models that do not fully recapitulate human physiology. He...
2024-07-23 | MTBLS10481 | MetaboLights
MetabolomicsHidden molecular clues in marine sediments revealed by untargeted mass spectrometry imaging

Mass spectrometry imaging (MSI) in sedimentary archives can produce records of molecular proxies at μm-scale resolution. For example, in annually varved sediments of the Santa Barbara Basin, such a fine resolution allows deciphering sub-annual distributions of archaeal tetraether lipids, haptophy...

2022-08-15 | MTBLS4609 | MetaboLights
MetabolomicsMass spectrometry imaging of phosphatidylcholine metabolism in lungs administered with therapeutic surfactants and isotopic tracers

Mass spectrometry imaging (MSI) visualises molecular distributions throughout tissues but is blind to dynamic metabolic processes. Here, MSI with high mass resolution together with multiple stable isotope labelling provided spatial analyses of phosphatidylcholine (PC) metabolism in mouse lungs. D...

2020-10-30 | MTBLS2075 | MetaboLights
MetabolomicsElucidation of xenoestrogen metabolism by non-targeted, stable isotope-assisted mass spectrometry in breast cancer cells

Environmental exposure to xenoestrogens, i.e., chemicals that imitate the hormone 17β-estradiol, has the potential to influence hormone homeostasis and action. Detailed knowledge of xenobiotic biotransformation processes in cell models is key when transferring knowledge learned from in vitro<...

2023-10-26 | MTBLS2716 | MetaboLights
ProteomicsGlobal quantification of intact proteins via chemical isotope labeling and mass spectrometry
Although thousands of intact proteins can be feasibly identified in recent years, global quantification of intact proteins is still challenging. Herein, we develop a high-throughput strategy for global intact protein quantification based on chemical isotope labeling. The isotope incorporation effici...
ORGANISM(S): Saccharomyces cerevisiae (Baker's yeast) 
2019-04-30 | PXD012526 | Pride
Intact protein quantification Ptop Chemical isotope labeling Highest isotopic peak Mass spectrometry 
ProteomicsGlycosylation Profiling of Neoplastic Biomarker Alpha Fetoprotein Through Intact Mass Protein Analysis
Glycosylation is an important post-translational modification (PTM) mechanism of proteins, that modulates protein function. Measurement of clinically adopted cancer protein biomarkers is commonly performed using affinity-based techniques, which often suffer from poor specificity and inability to dis...
ORGANISM(S): Homo sapiens (Human) 
2023-01-11 | PXD038602 | Pride
Intact proteins Hepatocellular carcinoma 
ProteomicsHuman serum N-linked intact glycopeptides LC-MS/MS
Large-scale identification of N-linked intact glycopeptides by liquid chromatography coupled tandem mass spectrometry (LC-MS/MS) in human serum is challenging due to the wide dynamic range of serum protein abundances, the lack of a complete serum N-Glycan database and the existence of non-specifical...
ORGANISM(S): Armoracia rusticana Homo sapiens (Human) Gallus gallus (Chicken) 
2020-04-21 | PXD015622 | Pride
N-linked intact glycopeptide Co-elution Spectral library search Human serum Isotopic distribution 
ProteomicsGlycosylation Profiling of Neoplastic Biomarker Alpha Fetoprotein Through Intact Mass Protein Analysis
Alpha fetoprotein (AFP) is a circulating cancer biomarker implicated in multiple neoplastic malignancies, including hepatocellular carcinoma (HCC). AFP glycoforms with core fucosylation structure (AFP-L3) are used clinically as a biomarker, to predict risk of developing HCC and to monitor its recur...
ORGANISM(S): Homo sapiens (Human) 
2023-01-11 | PXD038606 | Pride
Afp-l3 proteforms Core fucose Fucosylation High-resolution mass spectrometry Intact protein analysis 
ProteomicsDe Novo Sequencing of Polyclonal Antibodies by Integrating Intact Mass, Top-Down and Bottom-Up Mass Spectrometry
Antibodies are specialized proteins produced by the adaptive immune system to identify and neutralize harmful antigens. Antibody-based diagnostics and therapeutics have advanced rapidly, with recombinant antibodies derived from monoclonal antibodies (mAbs) becoming the preferred standard due to thei...
ORGANISM(S): Homo sapiens (Human) 
2025-10-31 | PXD063526 | Pride
Intact mass De novo sequencing Top-down Bottom-up Polyclonal antibody sequencing 
UnknownConfident assignment of intact mass tags to human salivary cystatins using top-down Fourier-transform ion cyclotron resonance mass spectrometry.
Not available
S-EPMC2873128 | biostudies-literature
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