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Characterizing Lewis Pairs Using Titration Coupled with In Situ Infrared Spectroscopy
Published on: February 20, 2020
Detection of Lewis antigen structural change by FTIR spectroscopy
Carbohydrate Polymers
|February 13, 2013
Summary
Fourier transform infrared spectroscopy (FTIR) can detect structural changes in mucin carbohydrates, specifically sialyl-Lewis x and sulfo-Lewis x, which are key biomarkers for respiratory diseases.
Area of Science:
- Biochemistry
- Glycobiology
- Spectroscopy
Background:
- Mucins are glycoproteins with altered glycosylation in respiratory diseases.
- Specific modifications like sialyl-Lewis x and sulfo-Lewis x are potential disease biomarkers.
Purpose of the Study:
- To evaluate Fourier transform infrared spectroscopy (FTIR) for detecting structural changes in Lewis x antigen derivatives.
Main Methods:
- Utilized FTIR to analyze infrared (IR) spectra of mono- and oligosaccharides.
- Compared specific IR spectra to identify contributions of sugar moieties.
Main Results:
- FTIR successfully detected spectral differences corresponding to structural modifications in Lewis x derivatives.
- Analysis of IR spectra allowed determination of key sugar moiety contributions.
Conclusions:
- FTIR is a viable method for identifying structural variations in mucin-associated carbohydrate antigens.
- This technique can aid in understanding biomarkers for respiratory disease progression.
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