Direct Conjugation of Retinoic Acid with Gold Nanoparticles to Improve Neural Differentiation of Human Adipose Stem Cells.
Vajihe AsgariAmir Landarani-IsfahaniHossein SalehiNoushin AmirpourBatool HashemibeniMohammad KazemiMohsen TaghizadehPublished in: Journal of molecular neuroscience : MN (2020)
Gold nanoparticles (AuNPs) have been proposed as useful medical carriers in the field of regenerative medicine. This study aimed to assess the direct conjugation ability of retinoic acid (RA) with AuNPs and to develop a strategy to differentiate the human adipose-derived stromal/stem cells (hADSCs) into neurons using AuNPs-RA. The physical properties of this nanocarrier were characterized using FT-IR, TEM, and FE-SEM. Moreover, the efficiency of RA conjugation on AuNPs was determined at 99% using UV-Vis spectroscopy. According to the MTT assay, an RA concentration of 66 μM caused a 50% inhibition of cell viability and AuNPs were not cytotoxic in concentrations below 5 μg/ml. Real-time PCR and immunocytochemistry proved that AuNPs-RA is able to increase the expression of neuronal marker genes and the number of neuronal protein (GFAP and MAP2)-positive cells, 14 days post-induction of hADSCs. Taken together, these results confirmed that the AuNPs-RA promote the neuronal differentiation of hADSCs.
Keyphrases
- rheumatoid arthritis
- gold nanoparticles
- stem cells
- disease activity
- endothelial cells
- ankylosing spondylitis
- interstitial lung disease
- healthcare
- physical activity
- induced apoptosis
- drug delivery
- induced pluripotent stem cells
- high throughput
- spinal cord
- high resolution
- cerebral ischemia
- skeletal muscle
- adipose tissue
- cell therapy
- gene expression
- pluripotent stem cells
- cell death
- metabolic syndrome
- binding protein
- signaling pathway
- cell proliferation
- blood brain barrier
- systemic sclerosis
- mass spectrometry
- single cell
- protein protein