EUK-134 — The Synthetic SOD/Catalase Mimetic
EUK-134 is a highly stable, synthetic antioxidant molecule designed to mimic the body's natural superoxide dismutase (SOD) and catalase enzymes. By neutralizing reactive oxygen species and protecting mitochondrial integrity, it represents a compelling preclinical candidate for mitigating oxidative stress-driven aspects of aging and neurodegeneration.
Mechanism of Action
EUK-134 is a synthetic salen-manganese complex that acts as a dual mimetic of the endogenous antioxidant enzymes superoxide dismutase (SOD) and catalase. It directly scavenges superoxide radicals, converting them to hydrogen peroxide, and subsequently decomposes the hydrogen peroxide into water and oxygen. By neutralizing these reactive oxygen species (ROS), EUK-134 mitigates oxidative stress, prevents lipid peroxidation, and protects mitochondrial function. It has been shown to inhibit the activation of mitogen-activated protein kinase (MAPK) pathways and reduce p53 accumulation in response to cellular damage. Additionally, it attenuates endoplasmic reticulum (ER) stress and modulates NF-κB signaling, thereby reducing downstream inflammatory cascades.
Human Trial Evidence
No published human longevity trials. Animal/in-vitro evidence only. Research has primarily focused on its topical application for skin protection and preclinical models of oxidative stress and neurodegeneration.
Dosing Protocol
Unestablished in humans for systemic longevity purposes. In preclinical models, doses range widely (e.g., 10-30 mg/kg in rodents). Topically, it is used in skincare formulations at concentrations around 0.1%.
Safety & Contraindications
Safety profile for systemic use in humans is unknown due to a lack of clinical trials. Topically, it is generally well-tolerated but should not be combined with strong acids (like ascorbic acid) which can degrade the manganese complex. Potential systemic risks, drug interactions, and contraindications remain uncharacterized.
Key Papers
Lifespan extension and rescue of spongiform encephalopathy in superoxide dismutase 2 nullizygous mice treated with superoxide dismutase-catalase mimetics
The Journal of Neuroscience · 2001
A synthetic superoxide dismutase/catalase mimetic (EUK-134) inhibits membrane-damage-induced activation of mitogen-activated protein kinase pathways and reduces p53 accumulation in ultraviolet B-exposed primary human keratinocytes
The Journal of Investigative Dermatology · 2004
EUK-134, a synthetic superoxide dismutase and catalase mimetic, prevents oxidative stress and attenuates kainate-induced neuropathology
Proceedings of the National Academy of Sciences · 1999