Abstract

The Nrf2/heme oxygenase-1 (HO-1) axis affords significant protection against oxidative stress and cellular damage. We synthesized a series of cobalt-based hybrid molecules (HYCOs) that combine an Nrf2 inducer with a releaser of carbon monoxide (CO), an anti-inflammatory product of HO-1. Two HYCOs markedly increased Nrf2/HO-1 expression, liberated CO and exerted anti-inflammatory activity in vitro. HYCOs also up-regulated tissue HO-1 and delivered CO in blood after administration in vivo, supporting their potential use against inflammatory conditions.

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