Synthesis and biological evaluation of berberine analogues as novel up-regulators for both low-density-lipoprotein receptor and insulin receptor

Bioorg Med Chem Lett. 2009 Nov 1;19(21):6004-8. doi: 10.1016/j.bmcl.2009.09.059. Epub 2009 Sep 19.

Abstract

Berberine (BBR) is a natural compound with up-regulating activity on both low-density-lipoprotein receptor (LDLR) and insulin receptor (InsR). This one-drug-multiple-target characteristic might be suitable for the treatment of metabolic syndrome. In searching for up-regulators effective for both LDLR and InsR expression, the structure-activity relationship (SAR) analysis for BBR analogues was done. Fourteen BBR analogues were designed, synthesized and biologically evaluated. SAR analysis revealed that appropriate modifications on the phenyl ring A or D of BBR might retain the up-regulatory activities on the expression of both LDLR and InsR. Among these compounds, compound 13a bearing 9-methoxy and 10-hydroxyl on the ring D showed promising activities on either LDLR or InsR gene expression. The 10-hydroxyl of 13a could be an arm to connect proper chemical groups for optimizing drug-bioavailability in vivo. Thus, 13a could be considered to be a parent compound to make pro-drugs for either blood lipids or glucose.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Berberine / analogs & derivatives*
  • Berberine / chemical synthesis
  • Berberine / chemistry
  • Berberine / pharmacology
  • Cell Line, Tumor
  • Humans
  • Hypolipidemic Agents / chemical synthesis*
  • Hypolipidemic Agents / chemistry
  • Hypolipidemic Agents / pharmacology
  • RNA, Messenger / metabolism
  • Receptor, Insulin / metabolism*
  • Receptors, LDL / metabolism*
  • Structure-Activity Relationship
  • Up-Regulation

Substances

  • Hypolipidemic Agents
  • RNA, Messenger
  • Receptors, LDL
  • Berberine
  • Receptor, Insulin