Two new cytotoxic isomeric indole alkaloids from the roots of Nauclea orientalis

Fitoterapia. 2010 Oct;81(7):830-3. doi: 10.1016/j.fitote.2010.05.004. Epub 2010 May 21.

Abstract

A pair of new isomeric indole alkaloids, naucleaorals A (1) and B (2) were isolated from the roots of Nauclea orientalis. The structures of compounds 1 and 2 were fully characterized using spectroscopic data, and were tested for their cytotoxicity (HeLa and KB cells) and antimalarial activity. Compound 1 showed significant cytotoxicity to HeLa cells with an IC(50) value of 4.0 µg/mL, while compound 2 exhibited very modest cytotoxicity to both cell lines with IC(50) values of 7.8 and 9.5 µg/mL, respectively. Both compounds proved to be inactive in antimalarial assays (IC(50)>10.00 µg/mL).

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Antineoplastic Agents, Phytogenic / isolation & purification
  • Antineoplastic Agents, Phytogenic / pharmacology
  • Antineoplastic Agents, Phytogenic / therapeutic use*
  • Carcinoma, Squamous Cell / drug therapy*
  • Female
  • HeLa Cells
  • Humans
  • Indole Alkaloids / chemistry
  • Indole Alkaloids / isolation & purification
  • Indole Alkaloids / pharmacology
  • Indole Alkaloids / therapeutic use*
  • KB Cells
  • Phytotherapy*
  • Plant Extracts / chemistry
  • Plant Extracts / pharmacology
  • Plant Extracts / therapeutic use*
  • Plant Roots
  • Rubiaceae / chemistry*
  • Uterine Cervical Neoplasms / drug therapy*

Substances

  • Antineoplastic Agents, Phytogenic
  • Indole Alkaloids
  • Plant Extracts
  • naucleaoral A
  • naucleaoral B