ALL患者释放的细胞外囊泡含有HNE附加蛋白质:附带损伤的影响
Jenni Ho1, Suriyan Sukati2, Tamara Taylor3
1Department of Toxicology and Cancer Biology, University of Kentucky, USA; Markey Cancer Center, University of Kentucky, USA.
Free radical biology & medicine
|December 6, 2024
概括
细胞外囊泡 (EVs) 作为检测氧化应激和神经元损伤的敏感生物标志物在小儿急性淋巴细胞白血病 (ALL) 幸存者中显示出希望. 早期发现可能有助于预防长期的神经认知能力下降.
科学领域:
- 神经科学是一个神经科学.
- 在瘤学瘤学.
- 生物化学 生物化学
背景情况:
- 儿童急性淋巴细胞白血病 (ALL) 幸存者经常经历神经认知缺陷.
- 氧化应激是癌症幸存者的非目标组织损伤的关键媒介.
- 早期识别氧化应激标志物对于预防神经元损伤至关重要.
研究的目的:
- 研究细胞外囊泡 (EVs) 作为氧化应激和非目标神经元损伤的敏感指标.
- 在早期治疗期间,分析儿科ALL患者的EV货物和相关标记物.
- 为了将EV概况与神经炎症和神经元稳定性相关联.
主要方法:
- 在治疗的前两个月中,从儿科ALL患者的血清和脑脊液 (CSF) 中分离EV.
- 纳米粒子跟踪分析 (NTA) 用于EV粒子量化.
- 测量神经元标记物 (NeuN,BDNF),天体细胞激活 (GFAP),白血病标记物 (CD19,CD22) 和氧化应激标记物 (HNE附加蛋白).
- 在患者血清中量化促炎性细胞因子 (TNF-α,IL-1β,IL-6,IL-8).
主要成果:
- 电动汽车作为氧化损伤指标表现出敏感性.
- 电动车显示出作为神经元稳定性下降的标记物的潜力.
- 白血病负担,而不是治疗,显著影响了促炎性细胞因子的产生,治疗开始后的水平下降.
- 在治疗开始后观察到的TNF-α,IL-1β,IL-6和IL-8等细胞因子的显著减少.
结论:
- 细胞外囊泡是氧化应激的一个有希望的,敏感的生物标志物.
- 电动汽车可以作为神经元稳定性和非目标损伤的指标.
- 白血病负担是儿科ALL患者全身炎症的主要驱动因素.
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