バットASC2は炎症体を抑制し,炎症疾患を緩和する
Matae Ahn1, Vivian Chih-Wei Chen2, Pritisha Rozario2
1Programme in Emerging Infectious Diseases, Duke-NUS Medical School, Singapore 169857, Singapore; SingHealth Duke-NUS Medicine Academic Clinical Program, Singapore 168753, Singapore; SingHealth PGY1 Residency Program, Singapore 169608, Singapore; Department of Internal Medicine, Singapore General Hospital, Singapore 169608, Singapore.
Cell
|May 12, 2023
まとめ
炎症性疾患やウイルス感染症の 治療の可能性を提示する 強力な炎症体を抑制する 独特のタンパク質であるASC2を 持っています
科学分野:
- 免疫学
- ウイルス学
- 老化に関する研究
背景:
- コウモリには 驚くべき長寿と ウイルスへの抵抗力があり 炎症性の経路が変化していることも 関連しています
- 炎症性疾患の管理における炎症体シグナル伝達の役割は完全に理解されていません.
研究 の 目的:
- コウモリにおける炎症体信号伝達の新しい調節体を特定し,特徴づけること.
- コウモリ由来の炎症体調節剤の 治療の可能性を調査する
主な方法:
- バットASC2の表現と機能を特定し特徴づけました
- バットASC2のヒトとマウスの炎症体に対する抑制能力を評価した.
- 炎とウイルス感染モデルにおけるコウモリASC2の有効性を評価するためにマウスモデルを使用した.
- バットASC2の機能強化に寄与する主要残留物を分析した.
主要な成果:
- バットASC2はヒトとマウスの炎症体の両方の強力な阻害剤です.
- バットASC2のトランスジェニック発現は実験的な腹膜炎とウイルス誘発の炎症を改善した.
- バットASC2はインフルエンザAウイルスに感染したマウスの死亡率を低下させた.
- バットASC2は,SARS-CoV-2の免疫複合体によって引き起こされる炎症体の活性化を抑制した.
結論:
- バットASC2は炎症体活性化の重要な負の調節体として作用する.
- バットASC2は炎症性疾患やウイルス感染症の治療に有効である.
関連する概念動画
Caspases
12.6K
Caspase, a family of cysteine proteases, serve as effectors in apoptosis. The ced3 gene in C.elegans was first identified to be involved in apoptosis. This gene encodes the ced-3 caspase that is similar to the interleukin-1-beta converting enzyme or ICE in mammals. In addition to apoptosis, caspases also function in the inflammatory response. Inflammatory caspases are essential in activating pro-inflammatory cytokines that recruit immune cells and block the replication of pathogens inside...
12.6K
The JAK-STAT Signaling Pathway
9.0K
Several cytokine receptors have tightly bound Janus kinase or JAK proteins attached at their cytosolic tail. Small signaling molecules such as cytokines, growth hormones, or prolactins bind to the cytokine receptors and initiate their dimerization. The dimerization brings the cytosolic JAKs together that trans-phosphorylate and activates each other. The activated JAKs now phosphorylate cytosolic tails of the cytokine receptors, which serve as binding sites for adaptor proteins such as SH2...
9.0K
Inflammatory Response
2.2K
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,...
2.2K
Antiasthma Drugs: Inhaled Corticosteroids and Glucocorticoids
320
Inhaled corticosteroids (ICS) are anti-inflammatory drugs used primarily in treating persistent asthma and providing long-term maintenance. They target the bronchial mucosa, the lining of the airways, to control inflammation, a critical factor in asthma progression and exacerbation.
ICS work through a multifaceted mechanism of action. They suppress the inflammatory response caused by the proliferation of TH cells. They also reduce the transcription of the IL-2 gene, which is involved in the...
ICS work through a multifaceted mechanism of action. They suppress the inflammatory response caused by the proliferation of TH cells. They also reduce the transcription of the IL-2 gene, which is involved in the...
320
Drugs for Treatment of Crohn's Disease in IBD Using Immunomodulatory Agents
207
Crohn's disease is an inflammatory bowel disorder marked by chronic inflammation of the GI tract. Various treatment strategies for Crohn's disease are employed, such as immunomodulatory agents, glucocorticoids, and biologics or anti-TNF therapy. Azathioprine (Imuran), a commonly used immunomodulatory drug for Crohn's disease, is converted in the body to mercaptopurine, which inhibits purine biosynthesis and cell proliferation. Both are utilized in severe cases of Inflammatory Bowel...
207
T Cell Types and Functions
1.1K
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...
1.1K


