Cyclosporin A enhances neurogenesis in the dentate gyrus of the hippocampus

Stem Cell Res. 2016 Jan;16(1):79-87. doi: 10.1016/j.scr.2015.12.007. Epub 2015 Dec 12.


Neural precursor cells (NPCs) in the adult mammalian brain demonstrate potential in applications of neural repair in the CNS. Recent work has shown that cyclosporin A (CsA), a commonly used immunosuppressive drug, expands the size of the NPC pool in the subventricular region by promoting cell survival. We asked if CsA had similar effects on NPCs in the dentate gyrus (DG) of the hippocampus, leading to increased neurogenesis. We used the in vitro and in vivo assays to examine CsA's effect on the size of the NPC pool and the proliferation and differentiation profile of cells within the DG. We found that CsA increases the numbers of NPCs and enriches for neurogenic NPCs in vitro. Similarly, in vivo systemic administration of CsA for 7 days increases the size of the NPC pool in the DG observed through increases in numbers of proliferating cells and newborn neurons. Consistent with CsA's pro-survival effects, we have shown that CsA enhances the survival of newborn cells that normally undergo cell death over the time of infusion. Together these findings support the hypothesis that CsA administration promotes neurogenesis and may have implications for neural repair.

Keywords: Cyclosporin A; Dentate gyrus; Hippocampus; Neural precursor; Neurogenesis; Survival.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Animals, Newborn
  • Bromodeoxyuridine / metabolism
  • Cell Count
  • Cell Death / drug effects
  • Cell Size
  • Cell Survival / drug effects
  • Clone Cells
  • Cyclosporine / pharmacology*
  • Dentate Gyrus / cytology*
  • Male
  • Mice
  • Multipotent Stem Cells / cytology
  • Multipotent Stem Cells / drug effects
  • Neural Stem Cells / cytology*
  • Neural Stem Cells / drug effects
  • Neurogenesis / drug effects*
  • Spheroids, Cellular / cytology


  • Cyclosporine
  • Bromodeoxyuridine