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European journal of pharmacology

Cinnamaldehyde protects human dental pulp cells against oxidative stress through the Nrf2/HO-1-dependent antioxidant response.


PMID 28882558

Abstract

Cinnamaldehyde (CA) has various functional properties, such as anti-cancer, anti-microbial, anti-inflammatory, and anti-oxidant activities. This study examined the intracellular signaling mechanisms of CA on the oxidative stress response in human dental pulp cells (hDPCs). The results showed that CA did not have any cell cytotoxicity or cause morphological changes at concentrations up to 50µM. A CA treatment strongly up-regulated the cellular protein level of heme oxygenase-1 (HO-1) and promoted Nrf2 translocation to the nucleus. CA-mediated Nrf2/HO-1 activation reduced the level of reactive oxygen species and protected the hDPCs from H