• Bulletin of the Korean Chemical Society
• /
• 제24권3호
• /
• pp.267-268
• /
• 2003

• 한국응용과학기술학회지
• /
• 제34권2호
• /
• pp.382-393
• /
• 2017

본 연구에서는 Phytosphingosine(PhS)과 Phytosphingosine-1-phosphate(PhS1P)를 피부 미용 측면에서 생리활성을 연구하여 화장품 소재로서 가능성 여부를 규명하고자 B16F10 멜라닌 세포, RAW264.7 대식 세포, HDF 섬유아세포를 이용하여 3가지 세포에 대한 독성을 파악하고 항염증, 항 멜라닌, MMP-1 발현 억제, Western blot analysis 실험을 통해 효과를 확인 하고자한다. 본 실험 결과 B16F10, RAW264.7, HDF 세포에 대한 독성이 낮은 것으로 확인하였으며, 항염증 NO 저해능 실험에서 PhS1P이 PhS보다 더 강력한 저해활성을 나타냈다. MMP-1 발현 또한 마찬가지로 PhS1P이 더 우수했고, 그 기작은 ERK 활성 감소에 의한 것임을 확인하였다. 한편, 멜라닌 생성 저해능은 알부틴 보다 우수하였으며, 그 작용은 Tyrosinase 발현을 억제하는 것임을 확인하였다. 이상의 결과를 종합하면, 생리활성물질인 PhS과 PhS1P는 주름개선 및 미백화장품의 피부 개선을 위한 기능성화장품으로 활용 가능성을 확인할 수 있었다.

• International Journal of Stem Cells
• /
• 제16권2호
• /
• pp.191-201
• /
• 2023

Background and Objectives: O-cyclic phytosphingosine-1-phosphate (cP1P) is a synthetic chemical and has a structure like sphingosine-1-phosphate (S1P). S1P is known to promote cell migration, invasion, proliferation, and anti-apoptosis through hippocampal signals. However, S1P mediated cellular-, molecular mechanism is still remained in the lung. Acute lung injury (ALI) and its severe form acute respiratory distress syndrome (ARDS) are characterized by excessive immune response, increased vascular permeability, alveolar-peritoneal barrier collapse, and edema. In this study, we determined whether cP1P primed human dermal derived mesenchymal stem cells (hdMSCs) ameliorate lung injury and its therapeutic pathway in ALI mice. Methods and Results: cP1P treatment significantly stimulated MSC migration and invasion ability. In cytokine array, secretion of vascular-related factors was increased in cP1P primed hdMSCs (hdMSC^cP1P), and cP1P treatment induced inhibition of Lats while increased phosphorylation of Yap. We next determined whether hdMSC^cP1P reduce inflammatory response in LPS exposed mice. hdMSC^cP1P further decreased infiltration of macrophage and neutrophil, and release of TNF-α, IL-1β, and IL-6 were reduced rather than naïve hdMSC treatment. In addition, phosphorylation of STAT1 and expression of iNOS were significantly decreased in the lungs of MSC^cP1P treated mice. Conclusions: Taken together, these data suggest that cP1P treatment enhances hdMSC migration in regulation of Hippo signaling and MSC^cP1P provide a therapeutic potential for ALI/ARDS treatment.

• International Journal of Stem Cells
• /
• 제16권4호
• /
• pp.448-449
• /
• 2023