Retinol binding protein 4 antagonists and protein synthesis inhibitors: Potential for therapeutic development.

Retinol-binding protein 4 (RBP4) is a serum protein that transports Vitamin A. RBP4 is correlated with numerous diseases and metabolic syndromes, including insulin resistance in type 2 diabetes, cardiovascular diseases, obesity, and macular degeneration. Recently, RBP4 antagonists and protein synthesis inhibitors are under development to regulate the effect of RBP4. Several RBP4 antagonists, especially BPN-14136, have demonstrated promising safety profiles and potential therapeutic benefits in animal studies. Two RBP4 antagonists, specifically tinlarebant (Belite Bio) and STG-001 (Stargazer) are currently undergoing clinical trials. Some antidiabetic drugs and nutraceuticals have been reported to reduce RBP4 expression, but more clinical data is needed to evaluate their therapeutical benefits. As regulating RBP4 levels or its activities would benefit a wide range of patients, further research is highly recommended to develop clinically useful RBP4 antagonists or protein synthesis inhibitors. Copyright © 2021 Elsevier Masson SAS. All rights reserved.

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Noheul Kim, Ronny Priefer. Retinol binding protein 4 antagonists and protein synthesis inhibitors: Potential for therapeutic development. European journal of medicinal chemistry. 2021 Dec 15;226:113856

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PMID: 34547506

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