Melatonin prevents cadmium-induced bone damage: First evidence on an improved osteogenic/adipogenic differentiation balance of mesenchymal stem cells as underlying mechanism

Latifa Knani, Desirée Bartolini, Safa Kechiche, Cristina Tortoioli, Giuseppe Murdolo, Massimo Moretti, Imed Messaoudi, Russel J Reiter, Francesco Galli

Research output: Contribution to journalArticle

3 Scopus citations

Abstract

Melatonin (MLT) plays a role in preserving bone health, a function that may depend on homeostatic effects on both mature osteoblasts and mesenchymal stem cells (MSCs) of the bone tissue. In this study, these functions of MLT have been investigated in rat bone (femur) and in human adipose MSC (hMSC) during chronic exposure to low-grade cadmium (Cd) toxicity, a serious public health concern. The in vivo findings demonstrate that MLT protects against Cd-induced bone metabolism disruption and accumulation of bone marrow adipocytes, a cue of impaired osteogenic potential of skeletal MSC niches. This latter symptom was recapitulated in hMSCs in which Cd toxicity stimulated adipogenic differentiation. MLT was found to rescue, at least in part, the osteogenic differentiation properties of these cells. This study reports on a new bone cytoprotection function of MLT pertinent to Cd toxicity and its interfering effect on skeletal MSC differentiation properties that is worth investigating for its possible impact on human bone pathophysiology.

Original languageEnglish (US)
Article numbere12597
JournalJournal of pineal research
DOIs
StateAccepted/In press - Jan 1 2019

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Keywords

  • adipogenesis
  • bone
  • cadmium
  • melatonin
  • mesenchymal stem cells
  • osteoblasts
  • osteogenesis

ASJC Scopus subject areas

  • Endocrinology

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