Cytotoxic 6-alkylsalicylic acids from the endophytic Streptomyces laceyi

J Antibiot (Tokyo). 2006 Dec;59(12):797-800. doi: 10.1038/ja.2006.105.

Abstract

Two new 6-alkylsalicylic acids, salaceyins A and B were isolated by bioassay-guided fractionation from the culture of the endophytic Streptomyces laceyi MS53 and their structures were determined on the basis of spectroscopic data. Salaceyins A and B exhibited modest cytotoxicity against a human breast cancer cell line (SKBR3) with IC50 values of 3.0 and 5.5 microg/ml, respectively.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Antineoplastic Agents / chemistry
  • Antineoplastic Agents / isolation & purification*
  • Antineoplastic Agents / pharmacology
  • Cell Line, Tumor
  • Humans
  • Salicylates / chemistry
  • Salicylates / isolation & purification*
  • Salicylates / pharmacology
  • Streptomyces / metabolism*

Substances

  • Antineoplastic Agents
  • Salicylates
  • salaceyin A
  • salaceyin B