Ara-290 (Cibinetide) — Non-Erythropoietic EPO Peptide | Neuroprotection Research
Ara-290 (Cibinetide, ARA 290) is a synthetic 11-amino-acid helix B surface peptide (HBSP) derived from the tissue-protective domain of erythropoietin — specifically the helix B region that binds the innate repair receptor (IRR, a β-common receptor heterodimer distinct from the classical erythropoietin receptor). By targeting the IRR rather than EPOR, Ara-290 produces EPO’s tissue-protective and anti-inflammatory effects without erythropoiesis, hematopoietic side effects, or thromboembolic risk.
Reconstitution: Reconstitute with Bacteriostatic Water (BAC Water) for multi-use stability, or Sterile Water for single-use protocols. Store lyophilized vials at 2–8°C.
Key Research Areas
🧠 Neuroprotection & Peripheral Neuropathy Research
Phase 2 clinical trial in sarcoidosis-associated small-fiber neuropathy demonstrated Ara-290 improved corneal nerve fiber density and neuropathic symptoms. Research shows nerve fiber regeneration and protection via IRR signalling in peripheral nerve injury models.
🩸 Anti-Inflammatory Without Erythropoiesis
Ara-290 potently suppresses inflammatory cytokines (TNF-α, IL-1β, IL-6) via IRR/β-common receptor signalling without any effect on red blood cell production — enabling EPO’s anti-inflammatory pathways to be studied in isolation from haematopoietic biology.
🩺 Metabolic & Pancreatic Research
IRR is expressed on pancreatic islet cells. Ara-290 research shows protection of beta cells from inflammatory and oxidative damage, improved insulin secretion, and potential applications in T1D and T2D protection research models.
❤️ Cardiac & Organ Protection
IRR-mediated cytoprotection extends to cardiac, renal, and hepatic tissue. Research in ischemia models shows significant Ara-290-mediated organ protection — consistent with EPO’s tissue-protective role but without hematological side effects.
Why Choose EhBuddy?
- ✅ Verified Purity — Third-party tested
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FOR RESEARCH USE ONLY (RUO). Not approved for human or veterinary use. Intended for in vitro and laboratory research only.













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