The secretome of adipose-derived mesenchymal stem cells protects SH-SY5Y cells from arsenic-induced toxicity, independent of a neuron-like differentiation mechanism.

The secretome of adipose-derived mesenchymal stem cells protects SH-SY5Y cells from arsenic-induced toxicity, independent of a neuron-like differentiation mechanism. Neurotoxicology. 2018 Apr 13;: Authors: Curtis TM, Hannett JM, Harman RM, Puoplo NA, Van de Walle GR Abstract Arsenic exposure through contaminated food, water, and air causes irreversible neural damage and affects millions of people worldwide. Several studies have demonstrated that the secreted factors (secretome) from mesenchymal stromal/stem cells (MSCs) can promote neural recovery after several forms of injury including stroke and neurodegenerative diseases. The present study was conducted to determine if the secretome from adipose-derived MSCs (ADSCs) prevents arsenic damage to SH-SY5Y cells. To this end, human neuroblastoma cells (SH-SY5Y) were pre-treated with the secretome from ADSCs and then challenged with different concentrations of arsenic. After various doses and exposure times, the extent of neuronal injury was assessed using MTT reduction and LDH release assays as well as LIVE/DEAD staining. These data demonstrate that the ADSC secretome protects SH-SY5Y cells from arsenic-induced toxicity. Previous reports have shown that the secretome of MSCs can induce neuroblast differentiation and mature neurons are less susceptible to chemical-induced toxicity. In the current study, proliferation assays, neurite length assessment, and quantitative RT-PCR of different...
Source: Neurotoxicology - Category: Neurology Authors: Tags: Neurotoxicology Source Type: research