Antioxidant, antitumor and immunomodulatory activities of water-soluble polysaccharides in Abrus cantoniensis

Int J Biol Macromol. 2016 Aug:89:707-16. doi: 10.1016/j.ijbiomac.2016.04.005. Epub 2016 Apr 4.

Abstract

Abrus cantoniensis is a vegetative food in tropical areas of Asia and claimed as folk beverages and soups consumed for cleansing liver toxicants and preventing liver diseases. Polysaccharides (ACP-І and ACP-II) were extracted with hot water from A. cantoniensis, and isolated by DEAE cellulose chromatography. The chemical properties as well as antioxidant, antitumor and immunomodulatory activities of ACP-I and ACP-II were investigated. The results showed that the ACP-I (9.09kDa) contained only glucose and ACP-II (38.45kDa) consisted of rhamnose, arabinose, galactose and glucose. ACP-II exhibited higher oxygen radical absorbance capacity (ORAC) and hydroxyl radical prevention capacity (HRPC) than ACP-I with ORAC values and HRPC values of 53.42±3.32μmol Trolox equiv./g DW and 34.84±5.07μmol Trolox equiv./g DW. Besides, in the wound healing assay, ACP-II exhibited potent migration inhibitory effects on MCF-7 cells. ACP-II could also significantly stimulate the proliferation of splenocytes and thymocytes, and enhanced NO production of peritoneal macrophages. These findings suggest that the polysaccharide ACP-II in A. cantoniensis could be served as a novel potential functional food.

Keywords: Abrus cantoniensis; Antitumor; Immunomodulatory; Polysaccharides.

MeSH terms

  • Abrus / chemistry*
  • Antineoplastic Agents / administration & dosage*
  • Antineoplastic Agents / chemistry
  • Antioxidants / administration & dosage*
  • Antioxidants / chemistry
  • Breast Neoplasms / drug therapy
  • Female
  • Humans
  • Immunologic Factors / administration & dosage
  • Immunologic Factors / chemistry
  • MCF-7 Cells
  • Plant Extracts / administration & dosage*
  • Plant Extracts / chemistry

Substances

  • Antineoplastic Agents
  • Antioxidants
  • Immunologic Factors
  • Plant Extracts