Inhibition of the Platelet-activating factor receptor for the treatment of Amyotrophic Lateral Sclerosis?

Author:

Briones Marcelo R. S.ORCID,Snyder Amanda M.ORCID,Neely Elizabeth B.,Connor James R.ORCID,Broach James R.ORCID

Abstract

AbstractCerebrospinal Fluids (CSF) of Amyotrophic Lateral Sclerosis (ALS) patients have increased levels of the inflammatory cytokine IL-18. Because IL-18 is produced by dendritic cells stimulated by the Platelet-activating factor (PAF), a major neuroinflammatory mediator, it is expected that PAF is involved in ALS. Pilot experimental data on amplification of PAF receptor (PAFR) mRNA by RT-PCR show that PAFR is overexpressed, as compared to age matched controls, in the spinal cords of transgenic ALS mouse model SOD1-G93A, suggesting PAF mediation. Although anti-inflammatory drugs have been tested for ALS before, no clinical trial has been conducted using PAFR specific inhibitors. Therefore, we hypothesize that administration of PAFR inhibitors, such as Ginkgolide B, PCA 4248 and WEB 2086, have potential to function as a novel therapy for ALS, particularly in SOD1 familial ALS forms. Because currently there are only two approved drugs with modest effectiveness for ALS therapy, a search for novel drugs and targets is essential.

Publisher

Cold Spring Harbor Laboratory

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