LXR agonist Prevents Peripheral Neuropathy and modifies PNS immune cells in Aged Mice
Gavini, C.; Elshareif, N.; Germanwala, A.; Aubert, G.; Calcutt, N.; Aubert, V.
Show abstract
Peripheral neuropathy is a common and progressive disorder in the elderly that interferes with daily activities and increases the risk of injury. It is of importance to find efficient treatments to treat or delay this age-related neurodegeneration. We previously demonstrated that activation of the cholesterol sensor Liver X receptor (LXR) with the potent agonist GW3965, alleviates pain in a diet-induced obesity model. Because cholesterol had also been linked to neuropathy during aging, we sought to test whether LXR activation may improve neuropathy and pain in aged mice by treating 21-month-old mice for 3 months with GW3965. Treatment resulted in a significant increase in nerve fibers of the sub-basal plexus, accompanied by a change in polarization, metabolism, and cholesterol content of macrophages in the sciatic nerve. These results suggest that activation of the LXR may block the progression of neuropathy associated with aging by modifying nerve-immune cell cholesterol, thereby providing new pathways to target in efforts to delay neuropathy during aging.
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