PUBLICATION

Distribution of Zinc in Mycelial Cells and Antioxidant and Anti-Inflammatory Activities of Mycelia Zinc Polysaccharides from Thelephora ganbajun TG-01

Authors
Zheng, L., Ma, Y., Zhang, Y., Meng, Q., Yang, J., Gong, W., Liu, Q., Cai, L., Hao, L., Wang, B., Yang, Y.
ID
ZDB-PUB-200715-5
Date
2020
Source
Oxidative medicine and cellular longevity   2020: 2308017 (Journal)
Registered Authors
Keywords
none
MeSH Terms
  • Animals
  • Anti-Inflammatory Agents/isolation & purification
  • Anti-Inflammatory Agents/pharmacology*
  • Antioxidants/isolation & purification
  • Antioxidants/metabolism
  • Antioxidants/pharmacology*
  • Basidiomycota/metabolism*
  • Carbohydrate Conformation
  • Fungal Polysaccharides/chemistry
  • Fungal Polysaccharides/metabolism
  • Fungal Polysaccharides/pharmacology*
  • Molecular Weight
  • Monosaccharides/chemistry
  • Mycelium/metabolism
  • Neutrophil Infiltration/drug effects
  • Oxidative Stress/drug effects
  • Reactive Oxygen Species/metabolism
  • Zebrafish
  • Zinc/chemistry
  • Zinc/metabolism*
  • Zinc/pharmacology
PubMed
32655762 Full text @ Oxid Med Cell Longev
Abstract
This study demonstrates that Thelephora ganbajun had a strong ability to absorb zinc, and zinc can be compartmentally stored in the small vesicles and mainly accumulated in the form of zinc-enriched polysaccharides (zinc content was 25.0 ± 1.27 mg/g). Mycelia zinc polysaccharides (MZPS) and its fractions were isolated. The main fraction (MZPS-2) with the highest antioxidant activity in vitro was composed of mannose : galacturonic acid : glucose : galactose in a molar ratio of 61.19 : 1 : 39.67 : 48.67, with a weight-averaged molecular weight of 5.118 × 105 Da. MZPS-2 had both α-pyranose and β-pyranose configuration and had a triple helical conformation. By establishing zebrafish models, we found that MZPS-2 can significantly scavenge free radicals, reduce the generation of reactive oxygen species caused by inflammation, and inhibit the recruitment of neutrophils toward the injury site. Therefore, MZPS-2 exhibited antioxidant and anti-inflammatory effects and can be used as a zinc supplement with specific biological activities to alleviate zinc deficiency complications, such as chronic oxidative stress or inflammation.
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