1. Phenotypic screen identifies calcineurin-sparing FK506 analogs as BMP potentiators for treatment of acute kidney injury.
- Author
-
Larraufie MH, Gao X, Xia X, Devine PJ, Kallen J, Liu D, Michaud G, Harsch A, Savage N, Ding J, Tan K, Mihalic M, Roggo S, Canham SM, Bushell SM, Krastel P, Gao J, Izaac A, Altinoglu E, Lustenberger P, Salcius M, Harbinski F, Williams ET, Zeng L, Loureiro J, Cong F, Fryer CJ, Klickstein L, Tallarico JA, Jain RK, Rothman DM, and Wang S
- Subjects
- Animals, Cells, Cultured, Disease Models, Animal, High-Throughput Screening Assays, Humans, Male, Mice, Mice, Inbred C57BL, Molecular Structure, Phenotype, Tacrolimus analogs & derivatives, Tacrolimus chemistry, Acute Kidney Injury drug therapy, Bone Morphogenetic Proteins metabolism, Tacrolimus pharmacology
- Abstract
Acute kidney injury (AKI) is a life-threatening disease with no known curative or preventive therapies. Data from multiple animal models and human studies have linked dysregulation of bone morphogenetic protein (BMP) signaling to AKI. Small molecules that potentiate endogenous BMP signaling should have a beneficial effect in AKI. We performed a high-throughput phenotypic screen and identified a series of FK506 analogs that act as potent BMP potentiators by sequestering FKBP12 from BMP type I receptors. We further showed that calcineurin inhibition was not required for this activity. We identified a calcineurin-sparing FK506 analog oxtFK through late-stage functionalization and structure-guided design. OxtFK demonstrated an improved safety profile in vivo relative to FK506. OxtFK stimulated BMP signaling in vitro and in vivo and protected the kidneys in an AKI mouse model, making it a promising candidate for future development as a first-in-class therapeutic for diseases with dysregulated BMP signaling., Competing Interests: Declaration of interests The authors are either employees and/or shareholders of Novartis. J.D., M-H.L., D.M.R., N.S., and S.W. are inventors on patents US10259827B2 and WO2018087677A1 for BMP potentiators., (Copyright © 2021 Elsevier Ltd. All rights reserved.)
- Published
- 2021
- Full Text
- View/download PDF