让MAVS变得更好
1Science Signaling, AAAS, Washington, DC 20005, USA.
Science signaling
|October 8, 2024
概括
增强线粒体抗病毒信号蛋白 (MAVS) 的棕化,可以增强身体对病毒感染的防御能力. 这种修改增强了天生的免疫系统对抗病毒的能力.
科学领域:
- 免疫学 免疫学 免疫学
- 分子生物学分子生物学
- 病毒学 病毒学
背景情况:
- 线粒体抗病毒信号蛋白 (MAVS) 对于启动抗病毒免疫反应至关重要.
- MAVS 作为一个信号枢纽,激活导致细胞因子生产的下游通路.
- MAVS的翻译后修改调节了其功能和稳定性.
研究的目的:
- 为了研究棕细胞代谢在调节MAVS功能中的作用.
- 为了确定增强MAVS棕化是否可以提高抗病毒免疫力.
主要方法:
- 位点定向突变发生,以确定MAVS上的棕化位点.
- 生物化学测定以评估MAVS棕化水平.
- 病毒感染模型用于评估修改MAVS的细胞中的抗病毒反应.
主要成果:
- 在MAVS上特定的氨酸残留物被确定为palmitoylation的关键部位.
- 增加MAVS的棕化导致其增强招募到脂质.
- 增强的MAVS棕化导致I型干扰素的强烈诱导,并改善病毒清除.
结论:
- 棕化是一种关键的翻译后修饰,可以积极调节MAVS活动.
- 向MAVS棕化是一种促进抗病毒免疫力的潜在策略.
相关概念视频
Masonry
Masonry, known for its strength, durability, and aesthetic versatility, encompasses construction with solid stone or man-made units like bricks, clay tiles, terra cotta, and concrete blocks, combined to form structures like walls, floors, and arches. These units are placed in a systematic fashion, known as coursing, and are bound together using mortar—a mixture typically made of water, cement, and sand.
The process of building with masonry is hands-on and can be executed with basic tools. A...
The process of building with masonry is hands-on and can be executed with basic tools. A...
Mortar
Mortar, a mixture of Portland cement, hydrated lime, sand, and water, is a crucial binding material in construction. Its primary function is to join masonry units together, filling gaps and ensuring a uniform distribution of weight across the structure. This helps in preventing potential weaknesses. Mortar also serves as a protective barrier against environmental elements such as water and wind, thereby safeguarding the interior of the structure. It also compensates for surface irregularities...
Reinforced Brick Masonry
Reinforced brick masonry is an advanced construction technique that enhances the structural integrity of brick walls by incorporating steel reinforcements. These reinforcements are either placed within the hollow cores of bricks or sandwiched between two layers of masonry, known as wythes, and are then secured in place with grout. Grout is a fluid mixture composed of Portland cement, aggregate, and water, providing the necessary bonding agent for the steel and brick.
To fortify brick walls...
To fortify brick walls...
Laying Concrete Masonry
Constructing a concrete masonry wall involves a series of steps designed to ensure durability, stability, and alignment. The construction starts with preparing the base, which includes cleaning the area where the wall will be erected. The next step involves spreading mortar where the first row of concrete blocks will be laid, typically starting at a corner section to help define the wall's boundaries.
Mortar application focuses on the face shells of the blocks, the sides that face outward, and...
Mortar application focuses on the face shells of the blocks, the sides that face outward, and...
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In hot, dry climates, the thermal mass of masonry walls can be beneficial, absorbing heat during the day and releasing it at night, thereby stabilizing indoor temperatures. However, in most other climates, additional insulation is necessary to enhance thermal resistance.
External insulation can be applied using an Exterior Insulation and Finish System (EIFS), which involves affixing panels of plastic foam to the wall and covering them with a polymeric stucco reinforced with glass fiber mesh.
External insulation can be applied using an Exterior Insulation and Finish System (EIFS), which involves affixing panels of plastic foam to the wall and covering them with a polymeric stucco reinforced with glass fiber mesh.
Mortar Joint Deterioration in Masonry
Mortar joint deterioration is a significant concern in masonry structures, with water accumulation in the joints leading to damage from freeze-thaw cycles. The repeated expansion of water during freezing and its melting during thawing develop and propagate cracks in the masonry joints. Eventually, this leads to the spalling of mortar from the joints, loosening masonry units and weakening the structure. The deteriorated mortar joints are also vulnerable to moisture intrusion into the walls.
The...
The...


