RGLS4326

RGLS4326 (RG4326) is a first-in-class, short oligonucleotide inhibitor of microRNA-17 (miR-17). RGLS4326 can be used for the research of autosomal dominant polycystic kidney disease (ADPKD). RGLS4326 inhibits miR-17 function in HeLa cells with an EC50 value of 28.3 nM[1].

Research Areas >> Cancer

Signaling Pathways >> Others >> Others

Research Areas >> Metabolic Disease

MicroRNA[1]

RGLS4326, a single-stranded, chemically modified, short oligonucleotide of 9-nt with full complementarity to the miR-17 seed sequence. RGLS4326 inhibits the pathologic functions of the miR-17 family of miRNAs in ADPKD[1]. RGLS4326 treatment inhibits miR-17 function in kidney collecting duct cells in culture as measured by miR-17 PD-Sig, with an EC50 value of 77.2 ± 20.2 nM[1]. RGLS4326 suppresses the growth of primary human autosomal dominant polycystic kidney disease (ADPKD) cysts[1]. Cell Proliferation Assay[1] Cell Line: Primary cysts in 3D Matrigel Concentration: 5, 20, 100, and 300  nM Incubation Time: 9 days Result: Decreased in cyst epithelial cell proliferation.

RGLS4326 preferentially distributes to kidney tubules and cysts. RGLS4326 (a single 30 mg/kg SC injection) is rapidly absorbed into plasma, showing Tmax of ≤1 h, Cmax of 8.5 µg/mL, and half-life of <4 h in wild-type mice[1]. In vivo administration of RGLS4326 also upregulates the expression of the direct miR-17 target genes Pkd1 and Pkd2[1]. Animal Model: Pkd2-KO mice[1] Dosage: 20 mg/kg Administration: SC injection Result: Compared to non-cystic control kidneys, polycystic kidneys of PBS-treated Pkd2-KO mice exhibit an age-dependent progressive decline in miR-17 PD-Sig, indicative of increasing miR-17 activity with disease progression. Administration of RGLS4326 reversed this decline in miR-17 PD-Sig, indicating a sustained functional inhibition of miR-17.

[1]. Edmund C Lee, et al. Discovery and preclinical evaluation of anti-miR-17 oligonucleotide RGLS4326 for the treatment of polycystic kidney disease. Nat Commun. 2019 Sep 12;10(1):4148.