Emodin anthrone (EmodAn) is a MARCH7 stabilizer that inhibits ferroptosis ( EC 50 =70 nM). Emodin anthrone is also a precursor to Emodin ( HY-14393 ) and possesses antibiotic activity. Emodin anthrone directly binds to MARCH7 and blocks its ubiquitination-mediated degradation at the K608 site; this action enhances MARCH7-mediated K48 ubiquitination and degradation of NCOA4 , as well as its regulation of the intracellular localization of TFR1 via K63 ubiquitination, thereby reducing the intracellular labile iron pool and blocking ferroptosis . Emodin anthrone demonstrates in vivo cardioprotective effects and exhibits a favorable safety profile. Emodin anthrone is applicable to research on ferroptosis-related cardiovascular diseases, including Doxorubicin ( HY-15142A )-induced cardiomyopathy and myocardial ischemia-reperfusion injury.
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