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  • Hydralazine induces stress resistance and extends C. elegans lifespan by activating the NRF2/SKN-1 signalling pathway.

Hydralazine induces stress resistance and extends C. elegans lifespan by activating the NRF2/SKN-1 signalling pathway.

Nature communications (2017-12-22)
Esmaeil Dehghan, Yiqiang Zhang, Bahar Saremi, Sivaramakrishna Yadavali, Amirmansoor Hakimi, Maryam Dehghani, Mohammad Goodarzi, Xiaoqin Tu, Scott Robertson, Rueyling Lin, Asish Chudhuri, Hamid Mirzaei
ABSTRACT

Nuclear factor (erythroid-derived 2)-like 2 and its Caenorhabditis elegans ortholog, SKN-1, are transcription factors that have a pivotal role in the oxidative stress response, cellular homeostasis, and organismal lifespan. Similar to other defense systems, the NRF2-mediated stress response is compromised in aging and neurodegenerative diseases. Here, we report that the FDA approved drug hydralazine is a bona fide activator of the NRF2/SKN-1 signaling pathway. We demonstrate that hydralazine extends healthy lifespan (~25%) in wild type and tauopathy model C. elegans at least as effectively as other anti-aging compounds, such as curcumin and metformin. We show that hydralazine-mediated lifespan extension is SKN-1 dependent, with a mechanism most likely mimicking calorie restriction. Using both in vitro and in vivo models, we go on to demonstrate that hydralazine has neuroprotective properties against endogenous and exogenous stressors. Our data suggest that hydralazine may be a viable candidate for the treatment of age-related disorders.

MATERIALS
Product Number
Brand
Product Description

Sigma-Aldrich
タンパク質カルボニル含量アッセイキット, sufficient for 100 colorimetric tests
Sigma-Aldrich
アミロイドタンパク質非Aβ成分, ≥80% (HPLC)