Immunoglobulin G glycome composition in transition from premenopause to postmenopause

Helena Deriš, Domagoj Kifer, Ana Cindrić, Tea Petrović, Ana Cvetko, Irena Trbojević-Akmačić, Ivana Kolčić, Ozren Polašek, Louise Newson, Tim Spector, Cristina Menni, Gordan Lauc*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

18 Citations (Scopus)

Abstract

Gonadal hormones affect immunoglobulin G (IgG) glycosylation, and the more proinflammatory IgG glycome composition might be one of the molecular mechanisms behind the increased proinflammatory phenotype in perimenopause. Using ultra-high-performance liquid chromatography, we analyzed IgG glycome composition in 5,080 samples from 1940 pre-, peri-, and postmenopausal women. Statistically significant decrease in galactosylation and sialylation was observed in postmenopausal women. Furthermore, during the transition from pre- to postmenopausal period, the rate of increase in agalactosylated structures (0.051/yr; 95%CI = 0.043–0.059, p < 0.001) and decrease in digalactosylated (−0.043/yr; 95%CI = −0.050 to −0.037, p < 0.001) and monosialylated glycans (−0.029/yr; 95%CI = −0.034 to −0.024, p < 0.001) were significantly higher than in either pre- or postmenopausal periods. The conversion to the more proinflammatory IgG glycome and the resulting decrease in the ability of IgG to suppress low-grade chronic inflammation may be an important molecular mechanism mediating the increased health risk in perimenopause and postmenopause.

Original languageEnglish
Article number103897
JournaliScience
Volume25
Issue number3
Early online date10 Feb 2022
DOIs
Publication statusPublished - 18 Mar 2022

Keywords

  • Glycomics
  • Molecular biology
  • Reproductive medicine

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