Change in N-Glycosylation of Plasma Proteins in Japanese Semisupercentenarians |
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| Authors: | Yuri Miura Noritaka Hashii Hiroki Tsumoto Daisuke Takakura Yuki Ohta Yukiko Abe Yasumichi Arai Nana Kawasaki Nobuyoshi Hirose Tamao Endo SONIC |
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| Institution: | 1. Research Team for Mechanism of Aging, Tokyo Metropolitan Institute of Gerontology, Tokyo, Japan.; 2. Division of Biological Chemistry and Biologicals, National Institute of Health Sciences, Tokyo, Japan.; 3. Center for Supercentenarian Research, Keio University School of Medicine, Tokyo, Japan.; Pacific Northwest National Laboratory, UNITED STATES, |
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| Abstract: | An N-glycomic analysis of plasma proteins was performed in Japanese semisupercentenarians (SSCs) (mean 106.7 years), aged controls (mean 71.6 years), and young controls (mean 30.2 years) by liquid chromatography/mass spectrometry (LC/MS) using a graphitized carbon column. Characteristic N-glycans in SSCs were discriminated using a multivariate analysis; orthogonal projections to latent structures (O-PLS). The results obtained showed that multi-branched and highly sialylated N-glycans as well as agalacto- and/or bisecting N-glycans were increased in SSCs, while biantennary N-glycans were decreased. Since multi-branched and highly sialylated N-glycans have been implicated in anti-inflammatory activities, these changes may play a role in the enhanced chronic inflammation observed in SSCs. The levels of inflammatory proteins, such as CRP, adiponectin, IL-6, and TNF-α, were elevated in SSCs. These results suggested that responses to inflammation may play an important role in extreme longevity and healthy aging in humans. This is the first study to show that the N-glycans of plasma proteins were associated with extreme longevity and healthy aging in humans. |
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