SLM6031434 is an inhibitor of sphingosine kinase 2 (SPHK2) (K = 0.4 μM for the recombinant mouse enzyme). It is selective for SPHK2 over SPHK1 (Ks = >20 μM). It decreases sphingosine-1-phosphate (S1P; ) and increases sphingosine levels in U937 monocytic leukemia cells in a concentration-dependent manner. SLM6031434 (5 mg/kg) reduces blood S1P levels in Sphk1, but not Sphk2, mice. SLM6031434 also increases blood S1P levels in wild-type mice and rats.
SLM6031434 is a highly selective sphingosine kinase 2 (SphK2) inhibitor with an IC50 value of 0.4 μM for SphK2. SLM6031434 exerts anti-fibrotic effects by increasing sphingosine accumulation and Smad7 expression. SLM6031434 demonstrates effective anti-fibrotic efficacy in a unilateral ureteral obstruction (UUO)-induced tubulointerstitial fibrosis mouse model. SLM6031434 can be used for the study of proteinuric kidney diseases or chronic kidney disease (CKD).
体外研究
SLM6031434 (3 μM, 16 h) reduces the expression of TGFβ-induced profibrotic markers (Col1, FN-1, CTGF) in primary mouse renal fibroblasts.
SLM6031434 (0.3-10 μM, 16 h) increased Smad7 protein expression in primary mouse renal fibroblasts in a dose-dependent manner.
SLM6031434 (1 μM, 20 h) significantly increased the ceramide levels in human podocytes.
SLM6031434 (1 μM, 24 h) upregulates the protein and mRNA expression of nephrin and Wilms tumor suppressor gene 1 (WT1) in wild-type human podocytes.
体内研究
SLM6031434 (5 mg/kg, intraperitoneal injection, daily for 9 days) alleviates unilateral ureteral obstruction-induced renal interstitial fibrosis in mice.
Animal Model:
UUO-induced renal interstitial fibrosis mouse models were established by performing unilateral ureteral ligation surgery on 10-12 week-old adult male mice
Dosage:
5 mg/kg
Administration:
i.p., daily, 9 days
Result:
Reduced collagen accumulation and ECM deposition.
Decreased α-SMA expression to reduce myofibroblast activation.
Downregulated mRNA and protein levels of Col1, FN-1, CTGF.
Increased sphingosine accumulation and Smad7 expression, while reduced Smad2 phosphorylation.
Reduced F4/80-positive macrophage infiltration and downregulated iNOS, Mcr1 mRNA.
分子式
C22H30F3N5O2
分子量
453.50
CAS号
1897379-33-7
运输条件
Room temperature in continental US; may vary elsewhere.