怀孕三个月期间的细胞外囊泡
Danilo Buca1, Alessandro Lucidi1, Davide Vincenzo Buca2
1Center for Fetal Care and High-Risk Pregnancy, Department of Obstetrics and Gynecology, University of Chieti, Italy.
Journal of reproductive immunology
|July 16, 2023
概括
怀孕期间细胞外囊泡 (EVs) 的分布在三个月内保持稳定,与出生体重或多普勒因子无关. 这一发现有助于解释针对妊娠并发症的EV生物标志物研究.
科学领域:
- 生殖生物学和围产医学.
- 细胞和分子生物学.
- 生物标志物的发现和诊断.
背景情况:
- 细胞外囊泡 (EVs) 对细胞间通信至关重要,并显示出怀孕并发症的潜在生物标志物.
- 之前的研究已将EV与流产,子宫前和妊娠期糖尿病等疾病联系起来.
- 然而,不同EV亚型在整个孕期的分布模式尚未得到很好的描述.
研究的目的:
- 量化和描述母体外周血液EVs (内皮质,上皮质,血小板和白细胞衍生) 的度和分布,在没有并发症的怀孕的第一,第二和第三季度.
- 研究EV度和百分比与新生儿出生体重和胎儿多普勒测量 (子宫和动脉) 之间的相关性.
主要方法:
- 一项前性观察性研究涉及64名没有并发症的孕妇,分为第一,第二和第三个三个月.
- 使用多色流细胞计分析了母亲的外周血液样本,以量化不同的EV亚型.
- 使用统计分析,包括单变量和多变量方法,来评估EV分布和相关性.
主要成果:
- 在三个季度之间,血小板,白细胞和内皮细胞EV的中位数度没有显著差异.
- 与第一和第二个三个月相比,在第三个三个月内表皮质衍生的EVs的度更高.
- 虽然白细胞和内皮EV百分比保持稳定,但血小板衍生的EV百分比在第一季度最高,上皮EV百分比在第三季度最高. 在EV指标和出生体重或多普勒结果之间没有发现任何关联.
结论:
- 孕妇EV的分布,包括血小板,白细胞,内皮和上皮亚型,在没有并发症的怀孕中,在妊娠三季度中没有显著变化.
- 新生儿出生体重或母亲/胎儿多普勒参数对EV分布没有影响.
- 这些发现为解释病理妊娠中EV研究提供了关键的基线,并支持未来使用EV作为"液体活检"生物标志物用于早期诊断和查妊娠并发症.
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