甘化作为一个复杂的翻译后修改过程,参与了与糖蛋白相关的免疫力
Meng Tian1, Xiaoyu Li1, Liuchunyang Yu1
1School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, 100029, China.
Cell communication and signaling : CCS
|May 5, 2025
概括
蛋白质糖化对细胞过程和免疫功能至关重要. 本文重点介绍了五种免疫性甘油蛋白,强调了甘油化.
科学领域:
- 生物化学和分子生物学
- 免疫学 免疫学 免疫学
- 细胞生物学 细胞生物学
背景情况:
- 蛋白质糖化是真核细胞中一个关键的翻译后修饰,对蛋白质功能和细胞调节至关重要.
- 葡萄糖蛋白的适当折叠和成熟需要在内 плазма网膜和戈尔吉装置内复杂的质量控制机制.
- 错误折叠的葡萄糖蛋白被识别,分离和降解以确保细胞的忠实性.
研究的目的:
- 审查五种关键免疫相关糖蛋白的作用.
- 阐明糖化对关键免疫功能的影响.
- 探索针对免疫疗法的治疗策略,以糖基化为向.
主要方法:
- 文献综述,重点关注与免疫相关的葡萄糖蛋白和糖化.
- 分析糖化对免疫过程的影响.
- 在糖基化途径中识别潜在的治疗点.
主要成果:
- 糖基化显著影响抗原呈现和免疫效应器功能.
- 糖化对免疫识别,受体结合以及细胞粘附/迁移至关重要.
- 了解葡萄糖蛋白在免疫中的作用,可以了解疾病病因.
结论:
- 糖化是免疫糖蛋白的功能不可或缺的一部分.
- 向糖基化途径为新型免疫疗法提供了一个有希望的途径.
- 对糖蛋白生物学的进一步研究可以推进治疗策略.
相关概念视频
Protein Glycosylation
6.4K
Glycosylation, the most common post-translational modification for proteins, serves diverse functions. Adding sugars to proteins makes the proteins more resistant to proteolytic digestion. Glycosylated proteins can act as markers and receptors to promote cell-cell adhesion. Additionally, they have many essential quality control functions in the cell, such as correct protein folding and facilitating transport of misfolded proteins to the cytosol, which can be degraded.
Glycosylation occurs in...
Glycosylation occurs in...
6.4K
Proteoglycans
3.8K
Glycans, a class of complex heterogeneous molecules, can be covalently attached to proteins to form glycosylated proteins that regulate various physiological and pathological processes. Glycosylated proteins or glycoproteins comprise N-linked and O-linked oligosaccharides. O-glycosylation is the most common type of protein glycosylation. Here, glycans attach to the oxygen atom of the hydroxyl groups of Serine or Threonine residues. O-linked glycosylation occurs later in protein processing,...
3.8K
Oligosaccharide Assembly
2.7K
Protein glycosylation starts in the ER lumen and continues in the Golgi apparatus. Glycosyltransferases catalyze the addition of sugar molecules or glycosylation of proteins. Usually, these enzymes add sugars to the hydroxyl groups of selected serine or threonine residues to form O-linked glycans or the amino groups of asparagine residues to form N-linked glycans. Different positions on the same polypeptide chain can contain differently linked glycans.
Multiple sugar molecules that may or may...
Multiple sugar molecules that may or may...
2.7K
Glycocalyx and its Functions
3.4K
The glycocalyx is a carbohydrate-rich, fuzzy-appearing layer on the outer surface of the cell membrane. It is highly hydrophilic, because of this it attracts large amounts of water to the cell's surface. This aids the cell's interaction with the watery environment and also helps it to obtain substances dissolved in the water. It is also important for cell identification, self/non-self determination, and embryonic development and is used in cell-to-cell attachments to form tissues.
3.4K
Antigens Involved in Adaptive Immunity
342
An antigen is any substance the immune system identifies as foreign and potentially harmful to the body, prompting an immune response. Antigens have two functional properties: immunogenicity and reactivity. Immunogenicity is the ability of an antigen to stimulate a specific immune response. At the same time, reactivity describes the antigen's ability to react with the cells and antibodies produced in response to it.
Complete Antigens
Complete antigens possess both immunogenicity and...
Complete Antigens
Complete antigens possess both immunogenicity and...
342
Matrix Proteoglycans and Glycoproteins
3.7K
Proteoglycans are extensively glycosylated proteins, commonly found in the extracellular matrix, interwoven with collagen fibers. Hyaline cartilage, the most common type of cartilage in the body, consists of short and dispersed collagen fibers associated with large amounts of proteoglycans. These proteoglycans have long negative charges that attract cations, which in turn attract water molecules. This influx of ions and water molecules swells up the proteoglycan like a water-soaked gel that can...
3.7K


