来自黑的新型多糖:结构特征和免疫活性
Meng Meng1, Fang Ning1, Xiaoyang He1
1State Key Laboratory of Food Nutrition and Safety, Ministry of Education, College of Food Science and Engineering, Tianjin University of Science and Technology, No. 29, 13th Avenue, Tianjin Economy Technological Development Area, Tianjin 300457, China.
Foods (Basel, Switzerland)
|July 29, 2025
概括
黑色的朱多糖 (BJP) 在结构上被确定并被发现可以调节免疫反应. 这项研究表明,BJP.
科学领域:
- 食品科学与技术 食品科学与技术
- 免疫学 免疫学 免疫学
- 生物化学 生物化学
背景情况:
- 在超声波辅助的提取过程中,从黑色的朱中获得了原始多糖.
- 此前已经进行了多糖的初步结构识别 (BJP).
- BJP的精确结构和免疫调节潜力需要进一步调查.
研究的目的:
- 为了阐明黑色朱聚糖 (BJP) 的详细结构.
- 评估BJP在循环胺诱导免疫抑制小鼠模型中的免疫调节作用.
- 为开发黑色朱及其多糖提供科学基础.
主要方法:
- 用先进的识别技术对BJP进行了详细的结构分析.
- 用环胺治疗的小鼠免疫抑制的评估.
- 评估BJP对体重,器官指数,组织组织学 (HE染色),血清细胞因子和免疫球蛋白水平,肝氧化应激标志物和肠道短链脂肪酸的影响.
主要成果:
- 标志着BJP的结构,揭示了特定的单糖化合物组成和联系.
- 印度人民党的管理改善了环胺诱导的免疫抑制,减轻了体重减轻和器官损伤.
- 通过增加细胞因子 (IFN-γ,TNF-α,IL-2,IL-6) 和免疫球蛋白 (IgA,IgG) 水平,BJP增强了免疫细胞活性,减少了氧化应激,并通过短链脂肪酸生产促进了肠道平衡.
结论:
- 黑色的朱多糖 (BJP) 具有定义的复杂结构.
- BJP表现出显著的免疫调节特性,提供对免疫抑制的保护作用.
- 这些发现支持BJP作为免疫健康的功能成分的潜力.
相关概念视频
Biosynthesis of Polysaccharides
93
Polysaccharides such as glycogen and starch are synthesized from nucleoside diphosphate sugars, primarily uridine diphosphate glucose (UDPG) and adenosine diphosphate glucose (ADPG). These activated glucose donors act as key intermediates in carbohydrate metabolism and biosynthesis. UDPG primarily involves glycogen synthesis in animals and many bacteria, while ADPG plays a fundamental role in starch synthesis in plants and certain bacteria.UDPG is formed when glucose-1-phosphate reacts with...
93
Cellulose and Pectic Polysaccharides
3.9K
Every plant cell has a cell wall that protects the cell, provides structural support, and gives the cell shape. Cellulose, the main structural component of the plant cell wall, makes up over 30% of plant matter. It is the most abundant organic compound on earth. Cellulose is an unbranched polysaccharide composed of linear chains of glucose molecules linked by β (1→4) glycosidic bonds.
As a cell matures, its cell wall specializes according to its type. For example, the...
As a cell matures, its cell wall specializes according to its type. For example, the...
3.9K
Glycocalyx and its Functions
5.6K
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.
5.6K
Chemistry of Carbohydrates
75.5K
Carbohydrates are an essential part of the diet in humans and animals. Grains, fruits, and vegetables are natural sources of carbohydrates that provide energy to the body, particularly through glucose, a simple sugar that is a component of starch and an ingredient in many staple foods. The stoichiometric formula (CH2O)n, where n is the number of carbons in the molecule represents carbohydrates. In other words, the ratio of carbon to hydrogen to oxygen is 1:2:1 in carbohydrate molecules. This...
75.5K
Oligosaccharide Assembly
3.0K
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...
3.0K
Glycosaminoglycans
5.1K
Glycosaminoglycans (GAGs), also known as mucopolysaccharides, are long and linear polymers comprising of specific repeating disaccharides - the amino sugar that can be N-acetylglucosamine or N-acetylgalactosamine, and a uronic acid that is usually glucuronic acid or iduronic acid.
GAGS are found in the extracellular matrix of vertebrates, invertebrates, and bacteria. Due to their polar nature they attract water, and serve as excellent lubricants or shock absorbers in an animal body.
Hyaluronic...
GAGS are found in the extracellular matrix of vertebrates, invertebrates, and bacteria. Due to their polar nature they attract water, and serve as excellent lubricants or shock absorbers in an animal body.
Hyaluronic...
5.1K


