Changes in the dynamic expression of cell surface glycans and glycoconjugates have been associated with the onset and progression of a wide range of human diseases, and they play a key role in the regulation of a variety of cellular processes and immune functions, as well as intercellular and cell-pathogen interactions. Therefore, glycomics analysis of cellular glycans is necessary. Currently, CD BioGlyco has accumulated deep experience in the field of Glycoinformatics Services, and based on this, we provide systematic single-cell glycomics analysis services to our clients.
We provide CyTOF to analyze the expression and remodeling of single-cell surface glycans. Before identifying specific glycans that are remodeled, single-cell linkage determination is used to identify predictive prerequisite cells and quantify glycans using the midguard signal intensity (MSI) of glycopeptides from cell surface donors. Additionally, we provide electrospray ionization-mass spectrometry (ESI-MS) or matrix-assisted laser desorption/ionization-time of flight MS (MALDI-TOF-MS) to further identify glycan sequences.
In addition, CyTOF is suitable for the analysis of cell surface glycans in multiple tissues or multiple regions and is capable of assessing the relative glycan expression levels between cells in each region.
CyTOF is capable of being used for glycomics analysis of cells in multiple tissues that are infected or uninfected with a particular virus. In addition, by performing single-cell chain determinations on blood and tissue cells that have been infected with viruses, it is possible to identify cell-specific glycan features and remodeled glycan structures on the cell surface.
Using CyTOF in conjunction with single-cell RNA sequencing methods allows for more efficient glycomics analysis at the single-cell level. After incubating cells with biotinylated lectins, the method allows the use of this method to reveal the expression of cell surface glycans as well as the processes by which glycans regulate the host cell, and even to perform genome-wide analyses of cellular processes associated with differential surface glycosylation.
Technology: Lectins compatible with CyTOF
Journal: eLife
IF: 7.7
Published: 2022
Results: In this research, the authors developed a lectin-conjugated CyTOF technique to simultaneously characterize the proteins and glycans of human immune cells at the single-cell level. The authors used this method to analyze and compare the characterization of glycans from different tissues of the human body. In addition, the authors used a bioinformatics approach to distinguish between preferential human immunodeficiency virus (HIV) infection and virus-induced remodeling of cellular subpopulations, revealing that HIV regulates the level of cell surface glycans.
Fig.1 Expression of cellular glycans from different tissues. (Ma, et al. 2022)
CD BioGlyco's professional knowledge covers a wide range of glycomic analysis methods, which can be flexibly adapted to meet the needs of individual single-cell glycomics analysis projects. With decades of comprehensive glycomics analysis experience, our expert team is prepared to assist you in the planning, implementation, and optimization of your single-cell glycomics analysis procedures and guide you through all phases of product development. Please feel free to contact us if you would like more information on specific aspects of our services.
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We envision a future where the intricate world of carbohydrate is no longer shrouded in mystery, but rather illuminated by the power of cutting-edge computational tools.