Solomonsterol A, a marine pregnane-X-receptor agonist, attenuates inflammation and immune dysfunction in a mouse model of arthritis

Mar Drugs. 2013 Dec 24;12(1):36-53. doi: 10.3390/md12010036.

Abstract

In the present study we provide evidence that solomonsterol A, a selective pregnane X receptor (PXR) agonist isolated from the marine sponge Theonella swinhoei, exerts anti-inflammatory activity and attenuates systemic inflammation and immune dysfunction in a mouse model of rheumatoid arthritis. Solomonsterol A was effective in protecting against the development of arthritis induced by injecting transgenic mice harboring a humanized PXR, with anti-collagen antibodies (CAIA) with beneficial effects on joint histopathology and local inflammatory response reducing the expression of inflammatory markers (TNFα, IFNγ and IL-17 and chemokines MIP1α and RANTES) in draining lymph nodes. Solomonsterol A rescued mice from systemic inflammation were assessed by measuring arthritis score, CRP and cytokines in the blood. In summary, the present study provides a molecular basis for the regulation of systemic local and systemic immunity by PXR agonists.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Anti-Inflammatory Agents*
  • Arthritis, Rheumatoid / chemically induced
  • Arthritis, Rheumatoid / drug therapy*
  • Arthritis, Rheumatoid / pathology
  • C-Reactive Protein / metabolism
  • Cartilage / pathology
  • Chemokine CCL3 / metabolism
  • Chemokine CCL5 / metabolism
  • Cholanes / pharmacology*
  • Collagen Type II
  • Cytokines / blood
  • Hepatocytes / drug effects
  • Humans
  • Immunologic Deficiency Syndromes / drug therapy*
  • Interferon-gamma / metabolism
  • Interleukin-17 / metabolism
  • Liver / drug effects
  • Liver / metabolism
  • Lymph Nodes / drug effects
  • Lymph Nodes / metabolism
  • Mice, Inbred C57BL
  • Mice, Transgenic
  • Models, Molecular
  • Molecular Conformation
  • Porifera / chemistry*
  • Pregnane X Receptor
  • Receptors, Steroid / agonists*
  • Receptors, Steroid / biosynthesis
  • Receptors, Steroid / genetics
  • Sulfuric Acid Esters / pharmacology*
  • Transcriptional Activation
  • Tumor Necrosis Factor-alpha / metabolism

Substances

  • Anti-Inflammatory Agents
  • Chemokine CCL3
  • Chemokine CCL5
  • Cholanes
  • Collagen Type II
  • Cytokines
  • Interleukin-17
  • Pregnane X Receptor
  • Receptors, Steroid
  • Sulfuric Acid Esters
  • Tumor Necrosis Factor-alpha
  • cholan-2,3,24-tryl-2,3,24-trisulfate
  • Interferon-gamma
  • C-Reactive Protein