多种机制的皮肤抗衰老作用 氨酸复合物
Fan Chen1, Xueping Guo2, Yue Wu1
1Department of Research and Development, Bloomage Biotechnology Co., Ltd., Shanghai, China.
概括
这项研究揭示了一种新型的氨酸复合物,通过增强原蛋白和皮肤-表皮结合蛋白,同时抑制矩阵金属蛋白酶-1 (MMP-1),有效地对抗皮肤内在衰老. 这种复合物提供了有前途的抗衰老益处.
科学领域:
- 皮肤病学和化学
- 生物化学 生物化学
- 分子生物学分子生物学
背景情况:
- 内在皮肤衰老的特点是细胞外基质的减少和皮肤-表皮结 (DEJ) 完整性的损害.
- 氨 (HA) 由于其天然的特性,已被公认为其在护肤方面的潜力.
- 了解HA在缓解衰老迹象中的机制对于开发有效的抗衰老策略至关重要.
研究的目的:
- 为了研究一种新型的氨酸复合物的多机制抗衰老作用.
- 评估该综合体对皮肤衰老的关键标志物的影响,包括原蛋白的产生和矩阵金属蛋白酶-1 (MMP-1) 的表达.
- 在重建的皮肤模型中评估复合物对皮肤-表皮结 (DEJ) 的影响.
主要方法:
- 使用了正常人纤维细胞的免疫组织化学分析和酶相关的免疫吸收分析 (ELISA).
- 评估了I型原蛋白和MMP-1的表达,以低分子量氨酸,其乙衍生物和HA复合物治疗后.
- 在重建的皮肤对应物上使用免疫组织化学分析和血素和欧染色来评估组织结构,DEJ完整性和蛋白质表达.
主要成果:
- 氨酸复合体在正常的人体皮肤纤维细胞中表现出协同作用,显著增加了I型原蛋白表达.
- 该复合物有效地抑制了矩阵金属蛋白酶-1 (MMP-1) 的产生.
- 在重建的皮肤等价物中,氨酸复合物增强了两个关键DEJ蛋白的表达,同时改善了组织结构.
结论:
- 新型氨酸复合物通过调节MMP-1表达和增强I型原蛋白和DEJ蛋白积累,在体外表现出显著的抗衰老特性.
- 这些发现凸显了氨酸复合物的多机制作用,用于打击皮肤内在衰老.
- 这项研究为探索各种类型的氨酸在护肤应用中的多样化生物活动开辟了新的途径.
相关概念视频
The Effect of Aging on Tissues
2.2K
Several body functions deteriorate with age. The external signs of aging are easily identifiable. For example, the skin becomes dry, less elastic, and thins out, forming wrinkles. The skin of the face begins to appear looser due to a decrease in the levels of elastic and collagen fibers in the connective tissue. Additionally, melanin production in the hair follicle decreases with age, resulting in gray hair. Moreover, the senses of sight and hearing decline, so glasses and hearing aids may...
2.2K
Renewal of Skin Epidermal Stem Cells
2.6K
The skin is divided into epidermis, dermis, and hypodermis, the skin's outermost, middle, and inner layers. The human epidermal layer regularly undergoes renewal, where old, dead cells are replaced by new cells. Epidermal stem cells or EpiSCs divide and differentiate to restore the lost cells. For the renewal process, some EpiSCs continuously self-renew. In contrast, few others differentiate into transit-amplifying cells, which later form prickle or spinous cells, followed by granular...
2.6K
Tissue Renewal without Stem Cells
1.7K
After cellular or tissue damage, the resident stem cells present in the human body can locally repair and regenerate the damaged tissue or organ. However, even though some tissues do not have stem cells, they can repair and regenerate with the help of pre-existing cells. For example, beta cells of the pancreas and hepatocytes of the liver can divide to renew and regenerate the tissue. Here, both cell division and cell death are well regulated by homeostasis.
However, failure of such a system...
However, failure of such a system...
1.7K
Aging
89
Aging is a complex biological phenomenon influenced by various processes that affect cellular and systemic functions. Several prominent theories attempt to explain its mechanisms, highlighting cellular limitations, oxidative damage, and hormonal changes as central factors in aging.
Cellular Clock Theory
The cellular clock theory posits that the human lifespan is closely tied to the finite capacity of cells to divide, a phenomenon governed by telomeres, which are protective caps at the ends of...
Cellular Clock Theory
The cellular clock theory posits that the human lifespan is closely tied to the finite capacity of cells to divide, a phenomenon governed by telomeres, which are protective caps at the ends of...
89
Reticular Dermis
2.6K
The papillary and reticular dermis are the two layers of the dermis. They are made of connective tissue with fibers of collagen extending from one to the other, making the border between the two somewhat indistinct. The dermal papillae extending into the epidermis belong to the papillary layer, whereas the dense collagen fiber bundles below belong to the reticular layer.
Reticular Layer
Underlying the papillary layer is the much thicker reticular layer, composed of dense, irregular connective...
Reticular Layer
Underlying the papillary layer is the much thicker reticular layer, composed of dense, irregular connective...
2.6K
Glycosaminoglycans
4.9K
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...
4.9K


