Untargeted Proteomics
The core of untargeted proteomics lies in the comprehensive analysis of protein expression in biological samples, rather than being limited to a predefined set of proteins. It provides us with a panoramic perspective to deeply understand organismal functions and disease mechanisms.
Untargeted proteomics relies on mass spectrometry techniques, particularly liquid chromatography-tandem mass spectrometry (LC-MS/MS), for the large-scale identification and quantification of proteins within cells. Unlike targeted proteomics, it does not require prior knowledge of specific proteins and instead explores all proteins in a sample in an exploratory manner. This approach allows researchers to identify thousands of proteins in a single experiment, revealing complex protein networks and pathways within cells.
Figure 1. Untargeted Proteomics
The main advantages of untargeted proteomics are its comprehensiveness and exploratory nature. It can be used for the discovery of disease biomarkers, analysis of drug action mechanisms, and basic understanding of biological processes. For example, in cancer research, by analyzing proteomic differences between tumor and normal tissues, researchers can discover new therapeutic targets and disease markers. In drug development, untargeted proteomics can help understand how drugs affect intracellular protein networks, thereby optimizing drug design.
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Related Services:
Quantitative Proteomic Analysis Based on SILAC/Dimethyl Labeling
TMT/iTRAQ/MultiNotch Quantitative Proteomics Analysis
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