IgM N-糖化与COVID-19的严重程度和补体沉积率相关
Benjamin S Haslund-Gourley1, Kyra Woloszczuk1, Jintong Hou1
1Drexel University/Tower Health Hospital, Philadelphia, PA, USA.
Nature communications
|January 9, 2024
概括
在COVID-19患者中改变的IgM N-糖化,与疾病严重程度相关. 了解IgM糖化中的这些变化对于管理严重急性呼吸系统综合征冠状病毒2 (SARS-CoV-2) 感染至关重要.
科学领域:
- 免疫学 免疫学 免疫学
- 葡萄糖生物学 葡萄糖生物学
- 病毒学 病毒学
背景情况:
- 免疫球蛋白G (IgG) 糖化在严重急性呼吸系统综合征冠状病毒2 (SARS-CoV-2) 感染中至关重要,影响免疫反应.
- 免疫球蛋白M (IgM) N-糖化在急性病毒感染 (包括COVID-19) 中的作用仍然基本上未被探索.
研究的目的:
- 调查IgM N-糖化在2019年冠状病毒病 (COVID-19) 中的作用及其与疾病严重程度的相关性.
- 探索IgM N-糖化变化与Golgi糖化转移酶的表达之间的联系.
主要方法:
- 在健康对照组和住院COVID-19患者中分析IgM N-糖化样本.
- 对IgM N-甘化模式与COVID-19严重程度的临床标志物的相关性分析.
- 评估SARS-CoV-2特异性免疫球蛋白N-甘氨酸配置文件.
- 研究戈尔吉糖转移酶表达的研究.
- 测量IgM抗体依赖补充沉积的测量.
主要成果:
- 在COVID-19患者中观察到高曼诺斯和IgM的化,与疾病严重程度相关.
- 针对SARS-CoV-2的特定IgM N-甘氨酸样本反映了这些趋势.
- 升高的IgM曼诺基化和化与临床严重性标志物有显著的相关性.
- 在IgM N-甘化中的变化与Golgi甘转移酶的改变表达有关.
- 在严重的COVID-19病例中,抗原特异性IgM抗体依赖补充物的沉积量更高.
结论:
- 在COVID-19期间,IgM N-糖化模式发生显著变化,与疾病严重程度相关.
- 这项研究确定了IgM糖化和在SARS-CoV-2感染中免疫反应之间的联系.
- 对IgM糖化及其下游免疫功能的进一步研究是有必要的,以了解人类病毒性疾病.
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