人体脂肪组织的细胞特征和蛋白质特征来自有或没有晚期冠状动脉疾病的捐赠者
Caitlin P S Ellis1,2, Benjamin W Tero1, Christian M Potts1
1MaineHealth Institute for Research, Scarborough, ME 04074, USA.
Biomedicines
|November 27, 2024
概括
周血管脂肪组织 (PVAT) 的分子特征在患有或没有冠状动脉疾病的患者之间有所不同. 蛋白质组学和异性质分析揭示了与心血管健康相关的独特蛋白质概况.
科学领域:
- 心血管生物学 心血管生物学
- 脂肪组织生物学 脂肪组织生物学
- 蛋白质组学是指蛋白质组学.
背景情况:
- 周血管脂肪组织 (PVAT) 通过膜信号传递影响血管功能.
- 了解PVAT分子特征对于心血管疾病研究至关重要.
研究的目的:
- 研究患有冠状动脉疾病 (CAD) 和没有冠状动脉疾病 (CAD) 的患者之间的PVAT分子差异.
- 识别与心血管健康和脂肪组织储存相关的蛋白质特征.
主要方法:
- 对PVAT和皮下脂肪组织进行比较分析,这些脂肪组织来自接受米特拉修复 (VR,没有CAD) 和冠状动脉旁路移植 (CABG,晚期CAD) 的患者.
- 进行了临床数据,组织病理学,蛋白质组学和多尺度异性质分析.
- 质谱法用于识别差异性蛋白质表达.
主要成果:
- 与VR捐赠者相比,来自CABG捐赠者的PVAT显示出不同的形态特征和蛋白质特征.
- 多尺度异性质分析区分了来自CAD和非CAD捐赠者的PVAT,与常规基因病理学不同.
- 蛋白质组分析发现了与分泌,胰岛素抵抗和脂肪细胞身份相关的蛋白质在仓库和患者组之间存在显著差异.
结论:
- 常规组织病理学不足以根据CAD状态区分PVAT.
- 多尺度异构和蛋白质组分析是识别与心血管疾病相关的PVAT差异的有价值工具.
- PVAT中的特定蛋白质特征与冠状动脉疾病的存在或不存在有关.
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