Completed Preclinical (in vivo) 2013

    The erythropoietin-derived peptide ARA290 reverses mechanical allodynia in the neuritis model

    Pulman KGT, Smith M, Mengozzi M, et al.

    Neuroscience

    DOI: 10.1016/j.neuroscience.2012.12.022

    Summary

    Demonstrated that ARA-290 prevented the development of mechanical allodynia (neuropathic pain) in a nerve inflammation model. Both low and high doses were equally effective, suggesting potential for treating neuropathic pain where nerve injury is absent on clinical assessment.

    Key Findings

    • ARA-290 prevented development of mechanical allodynia in neuritis model
    • Both 30 and 120 mcg/kg doses were equally effective
    • Suggests therapeutic potential for neuropathic pain from nerve inflammation without frank injury

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    Completed 2024

    Erythropoietin-derived peptide ARA290 mediates brain tissue protection through the beta-common receptor in mice with cerebral ischemic stroke

    Wang RL, Yang ZH, Huang YY, et al.

    CNS Neuroscience & Therapeutics

    Showed that ARA-290 exerts neuroprotective effects comparable to erythropoietin in a mouse middle cerebral artery occlusion model, without causing erythropoiesis. The protective mechanism operates through the beta-common receptor, reducing neuronal apoptosis and inflammatory cytokines.

    • ARA-290 provided neuroprotection comparable to EPO in cerebral ischemic stroke model
    • Neuroprotective effect mediated specifically through the beta-common receptor

    DOI: 10.1111/cns.14688

    Completed 2014

    Erythropoietin-derived nonerythropoietic peptide ameliorates experimental autoimmune neuritis by inflammation suppression and tissue protection

    Liu Y, Luo B, Han F, et al.

    PLoS ONE

    Demonstrated that ARA-290, an EPO-derived nonerythropoietic peptide, significantly improved recovery in experimental autoimmune neuritis without inducing erythropoiesis. The peptide suppressed inflammation, promoted nerve regeneration and remyelination, and modulated T cell differentiation.

    • ARA-290 improved nerve regeneration and remyelination without stimulating erythropoiesis
    • Increased regulatory T cells and Th2 cells while decreasing Th1 cells

    DOI: 10.1371/journal.pone.0090942