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Biochem Biophys Res Commun. 2016 Jun 3;474(3):566-571. doi: 10.1016/j.bbrc.2016.04.108. Epub 2016 Apr 26.

Effects and mechanisms of melatonin on neural differentiation of induced pluripotent stem cells.

Author information

1
Department of Spine Surgery, The 3rd Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong 510630, China.
2
Department of Emergency, Guangdong Provincial Corps Hospital of Chinese People's Armed Police Forces, Guangzhou Medical University, Guangzhou, Guangdong 510000, China.
3
Department of Gynaecology, Common Splendor International Health Management, Guangzhou, Guangdong 510000, China.
4
Department of Spine Surgery, The 3rd Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong 510630, China. Electronic address: ronglm21@163.com.

Abstract

Melatonin, a lipophilic molecule mainly synthesized in the pineal gland, has properties of antioxidation, anti-inflammation, and antiapoptosis to improve neuroprotective functions. Here, we investigate effects and mechanisms of melatonin on neural differentiation of induced pluripotent stem cells (iPSCs). iPSCs were induced into neural stem cells (NSCs), then further differentiated into neurons in medium with or without melatonin, melatonin receptor antagonist (Luzindole) or Phosphatidylinositide 3 kinase (PI3K) inhibitor (LY294002). Melatonin significantly promoted the number of neurospheres and cell viability. In addition, Melatonin markedly up-regulated gene and protein expression of Nestin and MAP2. However, Luzindole or LY294002 attenuated these increase. The expression of pAKT/AKT were increased by Melatonin, while Luzindole or LY294002 declined these melatonin-induced increase. These results suggest that melatonin significantly increased neural differentiation of iPSCs via activating PI3K/AKT signaling pathway through melatonin receptor.

KEYWORDS:

AKT; Induced pluripotent stem cells; Melatonin; Membrane receptor; Neuronal differentiation

PMID:
27130826
DOI:
10.1016/j.bbrc.2016.04.108
[Indexed for MEDLINE]

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