Immature dendritic cell exosomes suppress experimental autoimmune myasthenia gravis

J Neuroimmunol. 2015 Aug 15:285:71-5. doi: 10.1016/j.jneuroim.2015.04.009. Epub 2015 Apr 23.

Abstract

Immature dendritic cell-derived exosomes (iMDEX) display a certain degree of immunosuppressive activity in autoimmune diseases. However, the role of iMDEX in experimental autoimmune myasthenia gravis (EAMG) is still unclear. Therefore, we tested the effects of mouse bone marrow (BM)-derived iMDEX on tolerance induction in a mouse model of EAMG. In this study, we found that the CELLine culture system produced more exosomes, the morphology and phenotype of these exosomes were found to be identical when compared with traditional cell culture. And, iMDEX(1000) ameliorated the progression of EAMG by reducing AChR-reactive lymphocyte proliferation, AChR antibody levels and pro-inflammatory cytokine levels.

Keywords: Exosomes; Experimental autoimmune myasthenia gravis (EAMG); Immature dendritic cell (iMDC).

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Cells, Cultured
  • Dendritic Cells / immunology*
  • Dendritic Cells / pathology
  • Exosomes / immunology*
  • Female
  • Mice
  • Mice, Inbred C57BL
  • Myasthenia Gravis, Autoimmune, Experimental / immunology*
  • Myasthenia Gravis, Autoimmune, Experimental / pathology
  • Myasthenia Gravis, Autoimmune, Experimental / prevention & control*