细胞内膜网膜氨基酶1 (ERAP1) 和2 (ERAP2) 对中性粒细胞功能的影响
Irma Saulle1,2, Fiona Limanaqi1, Micaela Garziano1,2
1Dipartimento di Scienze Biomediche e Cliniche, Università degli Studi di Milano, Milano, Italy.
细胞外 细胞内细胞网 aminopeptidases 1 和 2 (ERAP1/2) 在炎症期间促进中性粒细胞的生存和耐受性. 这些酶增强中性粒细胞的激活,迁移和细胞化,同时减少有害的活性氧物种 (ROS).
科学领域:
- 免疫学 免疫学 免疫学
- 细胞生物学 细胞生物学
- 生物化学 生物化学
背景情况:
- 细胞内网膜氨基酶1 (ERAP1) 和2 (ERAP2) 对于维持细胞平衡至关重要.
- 它们在压力条件下调节免疫细胞功能,特别是中性粒细胞的作用需要进一步阐明.
研究的目的:
- 研究细胞外重组人体ERAP1和ERAP2 (rhERAP1/2) 对中性粒细胞功能的影响.
- 评估rherap1/2内部化,激活,迁移,代谢活动和中性粒细胞的免疫反应.
主要方法:
- 从健康人群中获得的中性粒细胞被RhERAP1/2.2刺激.
- 技术包括西布洛特,RT-qPCR,ELISA,共聚焦显微镜,跨井迁移,氧化和流细胞计.
- 评估参数:rhERAP内部化,激活标志物,细胞因子释放,颗粒分泌,迁移,氧气消耗,ROS,细胞和自.
主要成果:
- 中性粒细胞内化了rHERAP1/2,导致激活 (MAC-1+/CD66b+),细胞因子释放和颗粒酶分泌的增加.
- rhERAP1/2增强了中性粒细胞迁移,自和细胞化.
- 刺激减少了活性氧物种 (ROS) 的积累,而不会影响氧气消耗率.
结论:
- 细胞外ERAP1和ERAP2通过促进在炎症性压力期间的生存和耐受性来显著塑造中性粒细胞平衡.
- 这些发现提供了对免疫反应和潜在的基于ERAP的治疗策略的洞察力,用于治疗中性粒细胞相关疾病.
更多相关视频
14:05Morphological and Compositional Analysis of Neutrophil Extracellular Traps Induced by Microbial and Chemical Stimuli
Published on: November 4, 2022
11:32Real-Time, High-Throughput Microscopic Quantification of Human Neutrophil Extracellular Trap Release and Assessing the Pharmacology of Antagonists
Published on: October 18, 2024
相关概念视频
The Unfolded Protein Response
Export of Misfolded Proteins out of the ER
Role of ER in the Secretory Pathway
Components of the secretory pathway
About a third of proteins synthesized in the cell are sorted via the secretory route. They shuffle between different compartments in membrane-bound vesicles until they reach their final destination. The main intracellular compartments involved...
Endoplasmic Reticulum
Protein Modifications in the RER
Broadly, these modifications can be categorized into four main categories — glycosylation, formation of disulfide bonds, assembly of protein subunits, and specific proteolytic cleavages like removal of signal...
The Early Endosome: Endocytosis of Transferrin
