2023 Fiscal Year Final Research Report
Structural analysis of MUC1 modified glycans and role as diagnostic markers in salivary gland tumors
Project/Area Number |
22K15591
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Research Category |
Grant-in-Aid for Early-Career Scientists
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Allocation Type | Multi-year Fund |
Review Section |
Basic Section 50020:Tumor diagnostics and therapeutics-related
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Research Institution | Tokyo Dental College |
Principal Investigator |
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Project Period (FY) |
2022-04-01 – 2024-03-31
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Keywords | ムチン / 分子マトリックス電気泳動 / 糖鎖 / ホルマリン固定パラフィン包埋 / ヒドロキシルアミン / 唾液腺腫瘍 / 粘表皮癌 |
Outline of Final Research Achievements |
The purpose of this study was to collect sufficient cases and specimens for structural analysis of MUC1 modified glycans and role as diagnostic markers in salivary gland tumors. Formalin-fixed paraffin-embedded (FFPE) tissue sections are used for histopathological analysis, and stored FFPE sections are considered valuable for retrospective studies. In this study, we report a novel method to extraction of mucins from FFPE sections using hydroxylamine (HA). The extracted mucins were subjected to supported molecular matrix electrophoresis (SMME) and analyzed their glycan profiles, then compared to those of the mucins extracted from the FFPE sections by other methods. This study shows that hydroxylamine treatment could dissolve FFPE section and mucins can be efficiently extracted from the lysates.
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Free Research Field |
唾液腺腫瘍
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Academic Significance and Societal Importance of the Research Achievements |
唾液腺悪性腫瘍は年間発生数が人口10 万人あたり2.5~3.0人と稀な疾患である。そのため、十分な症例・検体を収集することは困難を極める。我々は検体の保存、保管に最も広く使用されている手法の1つであるホルマリン固定パラフィン包埋(FFPE)検体に着目し、 FFPE検体をもちいたムチン抽出法の開発をおこなった。 本研究より、ホルマリン固定パラフィン包埋検体からヒドロキシルアミン(HA)を用いてのムチン抽出は可能であり、抽出したムチンの糖鎖も凍結組織検体と同様であることから、FFPE検体を用いてのムチン抽出、糖鎖解析の可能性が示唆され、今後の研究に寄与するものと考えられた。
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