在糖尿病病中,健康和硬化性淋巴体中的蛋白质N-甘氨酸在糖尿病病中
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Updated: Jun 25, 2025

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Assessment of Kidney Function in Mouse Models of Glomerular Disease
Published on: June 30, 2018
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Dušan Veličković1, John P Shapiro2, Samir V Parikh2
1Earth and Biological Sciences Directorate, Pacific Northwest National Laboratory, Richland, Washington.
Journal of the American Society of Nephrology : JASN
|May 21, 2024
概括
糖尿病病改变了质体中的N-甘氨酸结构,硬化区域显示了特定的变化. 这些发现揭示了DKD中独特的糖化模式.
科学领域:
- 腎臟病學 (nephrology) 是一種醫學專業.
- 葡萄糖生物学 葡萄糖生物学
- 质谱仪成像成像 质谱仪成像
背景情况:
- 糖尿病是病的主要原因之一.
- 糖尿病病 (DKD) 涉及质体的复杂病理变化.
- 糖化中的变化与DKD的发病因子有关,但其特征尚不清楚.
研究的目的:
- 综合评估DKD患者质细胞中的N-甘氨酸组成变化.
- 为了确定与DKD中球性硬化症相关的特定N-甘氨酸结构.
- 将糖化学与蛋白学和转录学整合起来,以了解糖化化机制的改变.
主要方法:
- 从DKD和健康脏活检中质中的N-甘氨酸的非向质谱成像 (MSI).
- 区域蛋白质组学用于量化参与糖化酶的酶.
- 单核RNA测序 (snRNAseq) 数据的二次分析,用于糖化机械的转录.
主要成果:
- 鉴定了120种N-甘氨酸,其中12种在DKD质细胞中显著增加,所有这些都含有N-乙酸丁胺 (LacNAc).
- 五个N-甘氨酸结构区分了硬化和健康的淋巴细胞;硬化淋巴细胞缺乏核心的化和四天线结构.
- 坐标的奥米克揭示了减少的蛋白质和基因表达的fucosylated/分支N-glycans在硬化皮细胞,与下调的化和LacNAc合成基因.
结论:
- 综合空间糖基因组学,蛋白质组学和转录组学在DKD患者的硬化质体中发现了一个独特的蛋白质N-糖基化特征.
- 这些发现突出了特定的糖甘变化和DKD病变的潜在分子变化.
- 这项研究为了解糖化在DKD进展中的作用提供了基础.
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