Psorospermin, a new antileukemic xanthone from Psorospermum febrifugum

J Nat Prod. Mar-Apr 1980;43(2):296-301. doi: 10.1021/np50008a010.

Abstract

An ethanolic extract of Psorospermum febrifugum was fractionated with antileukemic activity in vivo in the P388 lymphocytic leukemia in mice and in vitro in the KB cell culture system used as a guide. The new antileukemic xanthone psorospermin 1 was isolated, and its structure was elucidated. The chlorohydrin of O-methylpsorospermin 2 was also isolated after treatment of the fraction containing psorospermin chlorohydrin 6 with diazomethane. Psorospermin 1 was demonstrated to have significant antitumor activity in the P388 in vivo system as well as cytotoxicity against the KB in vitro system.

Publication types

  • Research Support, U.S. Gov't, P.H.S.

MeSH terms

  • Animals
  • Antineoplastic Agents, Phytogenic / isolation & purification*
  • Carcinoma, Squamous Cell
  • Cell Line
  • Chemical Phenomena
  • Chemistry
  • Female
  • Humans
  • Leukemia P388 / drug therapy
  • Mass Spectrometry
  • Mice
  • Mitosis / drug effects
  • Nasopharyngeal Neoplasms
  • Neoplasms, Experimental / drug therapy
  • Ovum / drug effects
  • Plants, Medicinal / analysis*
  • Sea Urchins
  • Xanthenes / isolation & purification*
  • Xanthenes / pharmacology
  • Xanthones*

Substances

  • Antineoplastic Agents, Phytogenic
  • Xanthenes
  • Xanthones
  • psorospermin