Neuroprotective Effect of Apolipoprotein D in Cuprizone-Induced Cell Line Models: A Potential Therapeutic Approach for Multiple Sclerosis and Demyelinating Diseases.
Eva Martinez-PinillaNúria Rubio-SardónRafael PeláezEnrique García-ÁlvarezEva Del ValleJorge ToliviaIgnacio M LarráyozAna NavarroPublished in: International journal of molecular sciences (2021)
Apolipoprotein D (Apo D) overexpression is a general finding across neurodegenerative conditions so the role of this apolipoprotein in various neuropathologies such as multiple sclerosis (MS) has aroused a great interest in last years. However, its mode of action, as a promising compound for the development of neuroprotective drugs, is unknown. The aim of this work was to address the potential of Apo D to prevent the action of cuprizone (CPZ), a toxin widely used for developing MS models, in oligodendroglial and neuroblastoma cell lines. On one hand, immunocytochemical quantifications and gene expression measures showed that CPZ compromised neural mitochondrial metabolism but did not induce the expression of Apo D, except in extremely high doses in neurons. On the other hand, assays of neuroprotection demonstrated that antipsychotic drug, clozapine, induced an increase in Apo D synthesis only in the presence of CPZ, at the same time that prevented the loss of viability caused by the toxin. The effect of the exogenous addition of human Apo D, once internalized, was also able to directly revert the loss of cell viability caused by treatment with CPZ by a reactive oxygen species (ROS)-independent mechanism of action. Taken together, our results suggest that increasing Apo D levels, in an endo- or exogenous way, moderately prevents the neurotoxic effect of CPZ in a cell model that seems to replicate some features of MS which would open new avenues in the development of interventions to afford MS-related neuroprotection.
Keyphrases
- multiple sclerosis
- mass spectrometry
- reactive oxygen species
- gene expression
- cerebral ischemia
- high glucose
- ms ms
- endothelial cells
- escherichia coli
- white matter
- drug induced
- diabetic rats
- poor prognosis
- brain injury
- dna methylation
- high throughput
- cell therapy
- subarachnoid hemorrhage
- single cell
- spinal cord
- physical activity
- stem cells
- climate change
- mesenchymal stem cells
- minimally invasive
- long non coding rna
- bone marrow
- risk assessment
- binding protein
- electronic health record