Cancers · 2025
Valine-Niclosamide for Treatment of Androgen Receptor Splice Variant-Positive Hepatocellular Carcinoma.
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Hoelzen Emma J, Radomska Hanna S, Kulp Samuel K, Adeluola Adeoluwa A, Granchie Lauren A, Cheng Jeffrey, Dauki Anees M, Campbell Moray J, Mohammed Shabber, Xing Enming, Hai Min, Fukuda Mayu, Cheng Xiaolin, Phelps Mitch A, Li Pui-Kai, Coss Christopher C
Аннотация
BACKGROUND/OBJECTIVES: Hepatocellular carcinoma (HCC) is the predominant form of liver cancer and currently is the second-leading cause of cancer-related mortality globally. Current front-line systemic therapies for advanced HCC offer only modest improvements in patient overall survival. HCC is a sexually dimorphic disease, and cancer progression is driven in part by AR activity. Here, we present novel niclosamide pro-drugs for use in advanced HCC based upon niclosamide's known anti-AR activity and additional anti-cancer pathway efficacy.
METHODS: Niclosamide analogs were evaluated for their impacts on the AR protein in two HCC cell lines with different AR phenotypes. Amino acid conjugates of niclosamide were developed, and pharmacokinetic (PK) analyses were conducted to determine improvements in clearance and oral exposure. Finally, niclosamide analogs and amino acid conjugates were evaluated in an in vivo model of HCC.
RESULTS: Niclosamide analogs maintained anti-AR properties in HCC. Valine-conjugated niclosamide showed improved oral exposure, positioning it as a potential therapeutic in advanced HCC.
CONCLUSIONS: Valine-niclosamide improves upon niclosamide's poor solubility and oral bioavailability, increasing its utility for a variety of therapeutic uses. Further study of valine-niclosamide in advanced HCC and in other cancers or diseases is warranted.
METHODS: Niclosamide analogs were evaluated for their impacts on the AR protein in two HCC cell lines with different AR phenotypes. Amino acid conjugates of niclosamide were developed, and pharmacokinetic (PK) analyses were conducted to determine improvements in clearance and oral exposure. Finally, niclosamide analogs and amino acid conjugates were evaluated in an in vivo model of HCC.
RESULTS: Niclosamide analogs maintained anti-AR properties in HCC. Valine-conjugated niclosamide showed improved oral exposure, positioning it as a potential therapeutic in advanced HCC.
CONCLUSIONS: Valine-niclosamide improves upon niclosamide's poor solubility and oral bioavailability, increasing its utility for a variety of therapeutic uses. Further study of valine-niclosamide in advanced HCC and in other cancers or diseases is warranted.