首页> 美国卫生研究院文献>Evidence-based Complementary and Alternative Medicine : eCAM >Antiageing Mechanisms of a Standardized Supercritical CO2 Preparation of Black Jack (Bidens pilosa L.) in Human Fibroblasts and Skin Fragments
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Antiageing Mechanisms of a Standardized Supercritical CO2 Preparation of Black Jack (Bidens pilosa L.) in Human Fibroblasts and Skin Fragments

机译:标准化超临界CO2制备人成纤维细胞和皮肤碎片中的黑杰克(Bidens pilosa L.)的抗衰老机理。

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摘要

The use of topical retinoids to treat skin disorders and ageing can induce local reactions, while oral retinoids are potent teratogens and produce several unwanted effects. This way, efforts to explore complementary care resources should be supported. Based on this, we evaluate the antiageing effects of a supercritical CO2 extract from Bidens pilosa L. (BPE-CO2A) containing a standardized multicomponent mixture of phytol, linolenic, palmitic, linoleic, and oleic acids. BPE-CO2A was assessed for its effects on human dermal fibroblasts (TGF-β1 and FGF levels using ELISA; collagen, elastin, and glycosaminoglycan by colorimetric assays, and mRNA expression of RXR, RAR, and EGFr by qRT-PCR) and human skin fragments (RAR, RXR, collagen, elastin, and glycosaminoglycan by immunohistochemical analysis). Levels of extracellular matrix elements, TGF-β1 and FGF, and EGFr gene expression were significantly increased by BPE-CO2A. The modulation of RXR and RAR was positively demonstrated after the treatment with BPE-CO2A or phytol, a component of BPE-CO2A. The effects produced by BPE-CO2A were similar to or better than those produced by retinol and retinoic acid. The ability to stimulate extracellular matrix elements, increase growth factors, and modulate retinoid and rexinoid receptors provides a basis for the development of preparation containing BPE-CO2A as an antiageing/skin-repair agent.
机译:使用局部类视黄醇治疗皮肤疾病和衰老会引起局部反应,而口服类视黄醇是有效的致畸剂,并会产生一些不良作用。这样,应该支持探索补充护理资源的努力。基于此,我们评估了来自Bidens pilosa L.(BPE-CO2A)的超临界CO2提取物的抗衰老作用,该提取物包含植物醇,亚麻酸,棕榈酸,亚油酸和油酸的标准化多组分混合物。使用ELISA评估了BPE-CO2A对人皮肤成纤维细胞的影响(TGF-β1和FGF水平;通过比色测定评估了胶原,弹性蛋白和糖胺聚糖,并通过qRT-PCR评估了RXR,RAR和EGFr的mRNA表达)和人皮肤片段(RAR,RXR,胶原蛋白,弹性蛋白和糖胺聚糖,通过免疫组织化学分析)。 BPE-CO2A显着提高了细胞外基质元素,TGF-β1和FGF以及EGFr基因表达的水平。在用BPE-CO2A或BPE-CO2A的成分植醇处理后,RXR和RAR的调节得到了积极的证明。 BPE-CO2A产生的效果与视黄醇和视黄酸产生的效果相似或更好。刺激细胞外基质元素,增加生长因子以及调节类视色素和类视色素受体的能力为开发含有BPE-CO2A作为抗衰老/皮肤修复剂的制剂提供了基础。

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