PUBLICATION

Novel Natural Product-like Caged Xanthones Bearing a Carbamate Moiety Exhibit Antitumor Potency and Anti-Angiogenesis Activity In vivo

Authors
Xu, X., Wu, Y., Hu, M., Li, X., Bao, Q., Bian, J., You, Q., Zhang, X.
ID
ZDB-PUB-180426-19
Date
2016
Source
Scientific Reports   6: 35771 (Journal)
Registered Authors
Keywords
none
MeSH Terms
  • Angiogenesis Inhibitors/chemistry
  • Angiogenesis Inhibitors/pharmacology*
  • Animals
  • Animals, Genetically Modified
  • Antineoplastic Agents/chemistry
  • Antineoplastic Agents/pharmacology*
  • Antineoplastic Agents, Phytogenic/chemistry
  • Antineoplastic Agents, Phytogenic/pharmacology
  • Apoptosis/drug effects
  • Biological Products/chemistry
  • Biological Products/pharmacology*
  • Cell Line, Tumor
  • Drug Design
  • Drug Screening Assays, Antitumor
  • Female
  • Garcinia/chemistry
  • HCT116 Cells
  • HSP90 Heat-Shock Proteins/antagonists & inhibitors
  • Hep G2 Cells
  • Humans
  • Hypoxia-Inducible Factor 1, alpha Subunit/antagonists & inhibitors
  • Mice
  • Mice, Nude
  • Structure-Activity Relationship
  • Xanthones/chemistry
  • Xanthones/pharmacology*
  • Xenograft Model Antitumor Assays
  • Zebrafish
PubMed
27767192 Full text @ Sci. Rep.
Abstract
DDO-6101, a simplified structure obtained from the Garcinia natural product (NP) gambogic acid (GA), has been previously shown to possess high cytotoxicity to a variety of human tumour cell lines. To improve its physicochemical properties and in vivo cytotoxic potency, a series of novel carbamate-bearing derivatives based on DDO-6101 was synthesized and characterized. The structural modifications revealed that the presence of a carbamate moiety was useful for obtaining comparable cytotoxicity and improved aqueous solubility and permeability. 8n, which contains a bipiperidine carbamate moiety, displayed better drug properties and potential in in vivo antitumor activity. In addition, an antitumor mechanistic study suggested that 8n (DDO-6337) inhibited the ATPase activity of Hsp90 (Heat shock protein 90), leading to the inhibition of HIF-1a and ultimately contributing to its anti-angiogenesis and antitumor properties.
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