WSTF核オートファギーは慢性的な炎症を調節するが,急性炎症ではない
Yu Wang1,2,3,4, Vinay V Eapen5, Yaosi Liang1,2,3,6
1Center for Regenerative Medicine, Massachusetts General Hospital, Boston, MA, USA.
Nature
|July 3, 2025
まとめ
慢性炎症は急性炎症とは異なり,クロマチンの改造に影響する核自閉症を含みます. WSTF- ATG8の相互作用を阻害することは,本質的な急性炎症反応に影響を与えることなく,慢性炎症を標的とする.
科学分野:
- 細胞生物学
- 免疫学
- 分子生物学
背景:
- 急性炎症は感染症と闘いますが 慢性炎症は関節炎や癌や 代謝機能障害に関連した脂肪肝炎 (MASH) のような病気を誘発します
- 慢性炎症と急性炎症を区別するメカニズムは十分に理解されていないため,標的治療の開発が困難である.
研究 の 目的:
- 慢性炎症と急性炎症を区別する 分子機構を特定する
- 慢性炎症を標的とした 治療戦略を探求する
主な方法:
- 慢性炎症における核オートファジーとクロマチンの再構成の役割を調査した.
- WSTF (クロマチンの改造剤) とATG8 (オートファジータンパク質) の相互作用を調べました.
- 細胞に浸透するペプチドを用いて,疾患モデルにおけるWSTF- ATG8の相互作用を阻害した.
主要な成果:
- 慢性的な炎症は急性ではなく,WSTF-ATG8相互作用によるクロマチンの改造に影響を与える核オートファギーを含む.
- WSTF核の輸出と分解は,炎症遺伝子の上にクロマチンを開き,炎症を拡大する.
- WSTF- ATG8の相互作用を阻害することで,老化,MASH,骨関節炎のモデルにおける慢性炎症が抑制されました.
結論:
- 核オートファギーの媒介によるWSTFの分解は慢性炎症の重要な差異因子です.
- WSTF-ATG8の相互作用をターゲットにすることで,急性反応を危うくすることなく慢性炎症疾患の治療に特異的なアプローチが提供されます.
関連する概念動画
Inflammatory Response
8.3K
An inflammatory response is a localized, nonspecific immune reaction that occurs when a tissue is injured. It is characterized by redness, swelling, heat, and pain, which are commonly called the cardinal signs and symptoms of inflammation. Inflammation can sometimes result in a loss of function.
Inflammation can be triggered by various stimuli, such as impact, abrasion, chemical irritation, infections, and extreme hot or cold temperatures. These can damage cells and connective tissue fibers,...
Inflammation can be triggered by various stimuli, such as impact, abrasion, chemical irritation, infections, and extreme hot or cold temperatures. These can damage cells and connective tissue fibers,...
8.3K
Autophagy
4.6K
Autophagy is a self-digesting process by which a cell protects itself from threats both within and outside the cell, ranging from abnormal proteins to invading bacteria. In this process, obsolete components of the cell and invading microbes are degraded by hydrolytic enzymes active in an acidic environment of the lysosomal lumen.
An autophagic pathway consists of a series of signaling events activated in response to diverse stress and physiological conditions such as food deprivation,...
An autophagic pathway consists of a series of signaling events activated in response to diverse stress and physiological conditions such as food deprivation,...
4.6K
NF-κB-dependent Signaling Pathway
7.9K
The transcription factor NF-κB was discovered in 1986 in the lab of Nobel laureate Professor David Baltimore, for its interaction with the immunoglobulin light chain enhancer in B-cells. After more than three decades of study, it is now evident that NF-κB regulates the expression of over 100 genes. Most of these genes play an essential role in the innate and adaptive immune responses as well as the inflammatory responses of animals.
NF-κB-dependent Signaling Mechanism
The...
NF-κB-dependent Signaling Mechanism
The...
7.9K
Inflammation
55.4K
Overview
55.4K
Autophagic Cell Death
3.6K
Christian de Duve discovered “autophagy,” a process in which cellular components are engulfed by membrane-bound organelles called autophagosomes. The autophagosomes then fuse with lysosomes to digest the enclosed contents. Autophagy is generally activated in cells to prevent cell death. However, cell death is triggered when the damage is beyond repair.
Autophagy and Apoptosis
Autophagy can activate apoptosis. In normal conditions, the autophagy activating protein Beclin-1 and...
Autophagy and Apoptosis
Autophagy can activate apoptosis. In normal conditions, the autophagy activating protein Beclin-1 and...
3.6K
T Cell Types and Functions
1.4K
When T cells with CD4 markers are activated, they give rise to two types of effector cells: helper T cells and regulatory T cells. Meanwhile, T cells with CD8 markers differentiate into effector cytotoxic T cells. The differentiation of CD4 T cells into helper T cell subsets, such as Th1, Th2, and Th17 cells, is dependent on the antigen type, antigen-presenting cell, and regulatory cytokines.
Th1 cells stimulate dendritic cells to express necessary co-stimulatory molecules on their surfaces for...
Th1 cells stimulate dendritic cells to express necessary co-stimulatory molecules on their surfaces for...
1.4K


