具有促炎特征的激活NK细胞与周产期艾滋病毒感染青少年的异构发生有关
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Isolation of Exosomes from the Plasma of HIV-1 Positive Individuals
Published on: January 5, 2016
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medRxiv : the preprint server for health sciences
|November 21, 2023
概括
在患有围产期获得的人类免疫缺陷病毒 (PHIV) 的青少年中,激活的自然杀手 (NK) 细胞子集可能会导致心血管疾病风险. 这些细胞可能会促进血管巨细胞对氧化低密度脂蛋白的吸收,从而导致动脉样硬化.
科学领域:
- 免疫学 免疫学 免疫学
- 心血管科学 心血管科学
- 传染性疾病 传染性疾病
背景情况:
- 抗逆转录病毒疗法 (ART) 不能完全恢复人类免疫缺陷病毒 (HIV) 患者的免疫功能,导致持续的免疫激活和功能障碍.
- 围产期获得的HIV (PHIV) 和终身ART可能会改变免疫系统的发育,可能加速衰老并增加心血管疾病 (CVD) 风险.
- 自然杀手 (NK) 细胞在艾滋病毒的进展中发挥作用,并与心血管疾病有关,但它们在PHIV青少年的艾滋病毒相关心血管风险中的具体作用尚不清楚.
研究的目的:
- 为了研究NK细胞子集及其在PHIV青少年中与乌干达HIV阴性青少年相比,在PHIV青少年中的动脉生成中的潜在作用.
- 探索NK细胞可能导致PHIV心血管风险的机制.
主要方法:
- 在PHIV青少年和HIV阴性对照中对NK细胞子集的比较分析.
- 评估NK细胞子集对神经动脉发生的潜在贡献.
主要成果:
- 在PHIV青少年中发现了活性NK细胞子集.
- 这些被激活的NK子集可以通过增强血氧化低密度脂蛋白 (Ox-LDL) 通过血管巨细胞的吸收来促进动脉生成.
结论:
- 在PHIV青少年中激活的NK细胞子集可能导致动脉样硬化并增加心血管风险.
- 这一发现为PHIV和CVD联系的机制提供了新的见解,突出了NK细胞作为潜在的治疗点.
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