Physicochemical properties and protective effects on UVA-induced photoaging in Hs68 cells of Pleurotus ostreatus polysaccharides by fractional precipitation

Int J Biol Macromol. 2023 Feb 15:228:537-547. doi: 10.1016/j.ijbiomac.2022.12.254. Epub 2022 Dec 27.

Abstract

The development of natural ingredients protecting skin from UVA-induced photoaging is widely expected. The present study investigated the physicochemical properties, antioxidant, moisturizing, collagenase and elastase inhibitory activities, and protective effect on UVA-induced photoaging in Hs68 cells of Pleurotus ostreatus polysaccharides (POPs). POP-40, POP-60, and POP-80 were extracted by gradient precipitation of 40 %, 60 %, and 80 % ethanol, which could be prepared in large quantities. The results showed that POPs had good DPPH and ABTS radical scavenging abilities, water retention capacity, and collagenase and elastase inhibition effects. POP-80 had the best efficacy. Further determined the anti-inflammatory and antisenescence activities of POPs in Hs68 cells. The results indicated that after UVA irradiation, the contents of ROS, senescent cells, NF-κB activity, and proinflammatory cytokines increased in Hs68 cells. However, cells pretreated with 50 μg/mL POPs significantly decreased the contents of ROS and the number of senescent cells, reduced NF-κB activity, and inhibited IL-6 and TNF-α production. There was no significant difference in reducing the accumulation of ROS and senescent cells between POP-80 and the common anti-inflammatory substance quercetin. The results suggested that POP-80 may be potential cosmeceutical ingredients as it can protect Hs68 cells from photodamage.

Keywords: Photoaging; Pleurotus ostreatus; Polysaccharide.

MeSH terms

  • Anti-Inflammatory Agents / pharmacology
  • Fractional Precipitation
  • Humans
  • NF-kappa B
  • Pleurotus* / chemistry
  • Polysaccharides / chemistry
  • Polysaccharides / pharmacology
  • Reactive Oxygen Species
  • Skin Aging*
  • Skin Diseases*
  • Ultraviolet Rays / adverse effects

Substances

  • Anti-Inflammatory Agents
  • NF-kappa B
  • Polysaccharides
  • Reactive Oxygen Species