相关实验视频

Updated: Jan 9, 2026

Myeloid Innate Signaling Pathway Regulation by MALT1 Paracaspase Activity

Myeloid Innate Signaling Pathway Regulation by MALT1 Paracaspase Activity

Published on: January 7, 2019

顺序素-1/p62 在正常和低毒条件下调解在树突细胞中的TLR4诱导的炎症程序

Federica Coppola¹, Sara Monaci¹, Alessandro Falsini¹

¹Department of Molecular and Developmental Medicine, University of Siena, Via Aldo Moro 2, 53100, Siena, Italy.

Cellular and molecular life sciences : CMLS

|December 1, 2025

概括

顺序素-1/p62蛋白调节在不同氧气水平下树突细胞 (DC) 中的托尔类受体4 (TLR4) 炎症反应. 抑制 p62 的作用.

科学领域:

免疫学免疫学免疫学
细胞生物学细胞生物学
分子生物学分子生物学

背景情况:

序列组-1/p62是一种适应蛋白,对NFκB信号传输至关重要.
树突细胞 (DCs) 调解免疫反应,表达托尔类受体 (TLRs),包括TLR4.
在免疫反应过程中,DC必须适应不同氧气张力 (低氧).

研究的目的:

在正常和缺氧条件下研究p62在DC中脂聚糖 (LPS) 诱导的炎症反应中的作用.
确定p62/RIP1相互作用对DC中NFκB激活和IL-1β产生的影响.
探索p62作为潜在的炎症疾病治疗点.

主要方法:

研究了p62在LPS刺激的DCs中在normoxia和hypoxia下的作用.
分析了p62/RIP1相互作用及其对p62 ZZ-域的依赖.
利用了p62 ZZ-域的药理抑制与XRK3F2.2.
测量NFκB激活和IL-1β的产生.

主要成果:

在DC中,LPS诱导了p62过度表达和增强了p62/RIP1相互作用,不论氧气水平如何.
药理上抑制p62 ZZ-域减弱的p62/RIP1相互作用.
抑制导致NFκB激活和IL-1β产生减少.
在正常和缺氧条件下,p62被发现对DC炎症反应至关重要.

结论:

在DC中,p62是TLR4介导的炎症反应的关键调节者.
在NFκB激活和IL-1β产生中,p62 ZZ域对p62的功能至关重要.
p62代表了在各种微环境中调节炎症状况的潜在治疗标.

关键词:

树突性细胞树突性细胞在SQSTM1/p62中使用.在 TLR4 中,在XRK3F2中使用.

更多相关视频

Detection of Neu1 Sialidase Activity in Regulating TOLL-like Receptor Activation

Detection of Neu1 Sialidase Activity in Regulating TOLL-like Receptor Activation

Published on: September 7, 2010

Development and Functional Characterization of Murine Tolerogenic Dendritic Cells

Development and Functional Characterization of Murine Tolerogenic Dendritic Cells

Published on: May 18, 2018

相关概念视频

Regulation of the Unfolded Protein Response

Regulation of the Unfolded Protein Response

Inositol-requiring kinase one or IRE1 is the most conserved eukaryotic unfolded protein response (UPR) receptor. It is a type I transmembrane protein kinase receptor with a distinctive site-specific RNase activity. As the binding mechanics of the misfolded proteins with the N-terminal domain of IRE-1 are unclear, three binding models — direct, indirect, and allosteric -- are proposed for receptor activation. Nevertheless, it is known that once a misfolded protein associates with IRE1, it...

Abnormal Proliferation

Abnormal Proliferation

Under normal conditions, most adult cells remain in a non-proliferative state unless stimulated by internal or external factors to replace lost cells. Abnormal cell proliferation is a condition in which the cell's growth exceeds and is uncoordinated with normal cells. In such situations, cell division persists in the same excessive manner even after cessation of the stimuli, leading to persistent tumors. The tumor arises from the damaged cells that replicate to pass the damage to the...