Title |
Alterations of the Human Skin N- and O-Glycome in Basal Cell Carcinoma and Squamous Cell Carcinoma
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Published in |
Frontiers in oncology, March 2018
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DOI | 10.3389/fonc.2018.00070 |
Pubmed ID | |
Authors |
Uwe Möginger, Sonja Grunewald, René Hennig, Chu-Wei Kuo, Falko Schirmeister, Harald Voth, Erdmann Rapp, Kay-Hooi Khoo, Peter H. Seeberger, Jan C. Simon, Daniel Kolarich |
Abstract |
The glycome of one of the largest and most exposed human organs, the skin, as well as glycan changes associated with non-melanoma skin cancers have not been studied in detail to date. Skin cancers such as basal cell carcinoma (BCC) and squamous cell carcinoma (SCC) are among the most frequent types of cancers with rising incidence rates in the aging population. We investigated the healthy human skinN- andO-glycome and its changes associated with BCC and SCC. Matched patient samples were obtained from frozen biopsy and formalin-fixed paraffin-embedded tissue samples for glycomics analyses using two complementary glycomics approaches: porous graphitized carbon nano-liquid chromatography electro spray ionization tandem mass spectrometry and capillary gel electrophoresis with laser induced fluorescence detection. The human skinN-glycome is dominated by complex typeN-glycans that exhibit almost similar levels of α2-3 and α2-6 sialylation. Fucose is attached exclusively to theN-glycan core. Core 1 and core 2 typeO-glycans carried up to three sialic acid residues. An increase of oligomannose typeN-glycans and core 2 typeO-glycans was observed in BCC and SCC, while α2-3 sialylation levels were decreased in SCC but not in BCC. Furthermore, glycopeptide analyses provided insights into the glycoprotein candidates possibly associated with the observedN-glycan changes, with glycoproteins associated with binding events being the most frequently identified class. |
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Geographical breakdown
Country | Count | As % |
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Australia | 3 | 13% |
United States | 3 | 13% |
Germany | 3 | 13% |
Spain | 2 | 9% |
Canada | 1 | 4% |
Switzerland | 1 | 4% |
Austria | 1 | 4% |
United Kingdom | 1 | 4% |
Croatia | 1 | 4% |
Other | 1 | 4% |
Unknown | 6 | 26% |
Demographic breakdown
Type | Count | As % |
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Members of the public | 15 | 65% |
Scientists | 8 | 35% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
---|---|---|
Unknown | 43 | 100% |
Demographic breakdown
Readers by professional status | Count | As % |
---|---|---|
Student > Ph. D. Student | 15 | 35% |
Researcher | 5 | 12% |
Other | 2 | 5% |
Student > Bachelor | 2 | 5% |
Student > Doctoral Student | 2 | 5% |
Other | 3 | 7% |
Unknown | 14 | 33% |
Readers by discipline | Count | As % |
---|---|---|
Biochemistry, Genetics and Molecular Biology | 10 | 23% |
Medicine and Dentistry | 5 | 12% |
Chemistry | 4 | 9% |
Agricultural and Biological Sciences | 2 | 5% |
Immunology and Microbiology | 2 | 5% |
Other | 5 | 12% |
Unknown | 15 | 35% |