iTRAQ-Based Proteomic Profiling of Skin Aging Protective Effects of Tremella fuciformis-Derived Polysaccharides on D-Galactose-Induced Aging Mice.

IF 4.2 2区化学 Q2 BIOCHEMISTRY & MOLECULAR BIOLOGY

Molecules Pub Date : 2024-11-02 DOI:10.3390/molecules29215191

Yuanyuan Xu, Xiaofei Liu, Jingjing Guan, Jin Chen, Xiaofei Xu

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引用次数: 0

Abstract

In the present study, a heteromannan primarily composed of mannose, fucose, xylose, glucose, and arabinose at a molar ratio of 4.78:1.18:1:0.82:0.11 containing a low proportion of glucuronic acid with weight-average molecular weights of 3.6 × 10⁶ Da, named NTP, was prepared from the fruiting body of Tremella fuciformis. The anti-skin-aging effects of NTP on d-Galactose-induced aging mice and the biological mechanisms were investigated by an iTRAQ-based proteomics approach. NTP substantially mitigated skin aging characterized by a decreased loss of hydroxyproline and hyaluronic acid and reduced oxidative stress in the skin. Moreover, 43 differentially expressed proteins (DEPs) were identified in response to NTP, of which 23 were up-regulated and 20 were down-regulated. Bioinformatics analysis revealed that these DEPs were mainly involved in the biological functions of cellular and metabolic regulations, immune system responses, and structural components. The findings provided new insights into the biological mechanisms underlying the anti-skin-aging actions of T. fuciformis-derived polysaccharides and facilitated NTP applications in naturally functional foods.

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基于 iTRAQ 的蛋白质组剖析发现粘菌多糖对 D-半乳糖诱导的老化小鼠皮肤老化的保护作用

本研究从粘孢子菌的子实体中制备了一种主要由甘露糖、岩藻糖、木糖、葡萄糖和阿拉伯糖组成的杂甘露聚糖，其摩尔比为4.78:1.18:1:0.82:0.11，含有较低比例的葡萄糖醛酸，重量平均分子量为3.6×106 Da，命名为NTP。采用基于 iTRAQ 的蛋白质组学方法研究了 NTP 对 d-半乳糖诱导的老化小鼠皮肤的抗衰老作用及其生物学机制。NTP 大大缓解了皮肤老化，其特点是减少了羟脯氨酸和透明质酸的流失，降低了皮肤的氧化应激。此外，还发现了 43 个响应 NTP 的差异表达蛋白（DEPs），其中 23 个上调，20 个下调。生物信息学分析表明，这些差异表达蛋白主要参与细胞和代谢调节、免疫系统反应和结构成分的生物学功能。这些发现为了解粘菌多糖抗皮肤老化作用的生物机制提供了新的视角，并促进了 NTP 在天然功能食品中的应用。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Molecules 化学-有机化学

CiteScore

7.40

自引率

8.70%

发文量

7524

审稿时长

1.4 months

期刊介绍： Molecules (ISSN 1420-3049, CODEN: MOLEFW) is an open access journal of synthetic organic chemistry and natural product chemistry. All articles are peer-reviewed and published continously upon acceptance. Molecules is published by MDPI, Basel, Switzerland. Our aim is to encourage chemists to publish as much as possible their experimental detail, particularly synthetic procedures and characterization information. There is no restriction on the length of the experimental section. In addition, availability of compound samples is published and considered as important information. Authors are encouraged to register or deposit their chemical samples through the non-profit international organization Molecular Diversity Preservation International (MDPI). Molecules has been launched in 1996 to preserve and exploit molecular diversity of both, chemical information and chemical substances.