Niruriside, a new HIV REV/RRE binding inhibitor from Phyllanthus niruri

J Nat Prod. 1996 Feb;59(2):196-9. doi: 10.1021/np9600560.

Abstract

During the screening of natural products for their ability to inhibit the binding of HIV-REV protein to [33P]-labeled RRE RNA, one novel compound, niruriside (1), was isolated from the MeOH extract of the dried leaf of Phyllanthus niruri L. by bioassay-guided fractionation. The structure of niruriside was determined by spectroscopic methods. Niruriside showed specific inhibitory activity against the binding of REV protein to RRE RNA with an IC50 value of 3.3 microM; however, niruriside did not protect CEM-SS cells from acute HIV infection at concentrations up to 260 microM using an XTT dye reduction assay.

MeSH terms

  • Antiviral Agents / chemistry
  • Antiviral Agents / isolation & purification*
  • Antiviral Agents / pharmacology*
  • Binding, Competitive
  • Cinnamates / chemistry
  • Cinnamates / isolation & purification*
  • Cinnamates / pharmacology*
  • Disaccharides / chemistry
  • Disaccharides / isolation & purification*
  • Disaccharides / pharmacology*
  • Gene Expression Regulation, Viral / drug effects*
  • Gene Products, rev / drug effects*
  • Gene Products, rev / genetics
  • HIV-1 / drug effects*
  • HIV-1 / genetics
  • Humans
  • India
  • Leukemia, T-Cell
  • Plant Extracts / chemistry
  • Plant Leaves / chemistry*
  • Plants, Medicinal / chemistry*
  • Protein Binding / drug effects
  • Protein Binding / genetics
  • RNA, Viral / drug effects
  • Tumor Cells, Cultured
  • rev Gene Products, Human Immunodeficiency Virus

Substances

  • Antiviral Agents
  • Cinnamates
  • Disaccharides
  • Gene Products, rev
  • Plant Extracts
  • RNA, Viral
  • niruriside
  • rev Gene Products, Human Immunodeficiency Virus