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Even though doxorubicin (DOX) is a potential chemotherapeutic drug, its usage is restricted due to its ability to induce cardiac damage. In order to prevent this damage, a potent cardioprotective agent should be associated with DOX treatment. Corilagin is a natural polyphenol tannic acid which unveils enormous pharmacological activities predominantly as an antitumor agent. Hence, the current work is designed to study the precise mechanisms of corilagin upon administration in doxorubicin induced cardiotoxicity in experimental rats. DOX treated rats showed diminished level of blood pressures and heart rate, whereas corilagin along with DOX treatment improved the status. Cardiotoxicity enzymes and biomarkers were found to be increased in the serum of DOX induced rats. Upon treatment, corilagin could reduce the cardiotoxicity enzymes and biomarkers in serum. Histopathological examination of cardiac tissue also revealed the anti-toxic effects of corilagin in contrast to DOX. Injection of DOX in rats showed inflammatory cells infiltration, necrosis and fragmented myofibrils. Corilagin treatment reverted the cardiac histology to near normal. Inflammatory mediators and P13K, Akt, and NF-κB were upregulated in DOX administered rats. Corilagin repressed the levels of P13K, Akt, and NF-κB in DOX induced rats. In the present investigations, corilagin improved cardiac function via reducing injury, inflammation and promoting apoptosis thereby suggesting that corilagin would be recommended for DOX-induced cardiotoxicity.

Cardioprotective effects of corilagin on doxorubicin induced cardiotoxicity via P13K/Akt and NF-κB signaling pathways in a rat model