Barroilhet Lab

University of Wisconsin-Madison

OBSTETRICS & GYNECOLOGY

Madison · United States

NIH-funded
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NIH R01 · 2024

Repurposing Atovaquone for Preventing Ovarian Cancer: An Example of Successful Inhibition of Oxidative Phosphorylation

Early detection of ovarian cancer using screening algorithms is ineffective, even in high-risk populations. Patients who carry germline mutations, such as BRCA, have limited options to lower their ovarian cancer risk, short of removing their ovaries and fallopian tubes. There is a critical need for novel methods to prevent ovarian cancer without the negative consequences of surgical menopause. Drugs that inhibit OXPHOS, such as atovaquone, have potential as effective chemoprevention agents. Atovaquone is a mitochondrial complex III inhibitor. Preliminary data from our laboratory support atovaquone's ability to effectively block OXPHOS by interfering with mitochondrial electron transport.…

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