sphingosine-competitive

K145 hydrochloride is a selective sphk2 inhibitor with substrate competitiveness and oral activity, with IC50 of 4.3 µM and Ki of 6.4 µM. K145 hydrochloride can induce apoptosis and has strong antitumor activity.

PF-543 (Sphingosine Kinase 1 Inhibitor II), a novel sphingosine-competitive inhibitor of SphK1, inhibits SphK1 with IC50 of 2.0 nM and Ki of 3.6 nM.

PF-543 hydrochloride (PF-543) inhibits SphK1 with a K(i) of 3.6 nM, is sphingosine-competitive and is more than 100-fold selective for SphK1 over the SphK2 isoform.

MP-A08 is a highly selective, ATP-competitive inhibitor of sphingosine kinase (SPHK1) that targets both SphK1 and SphK2 [Ki: 6.9 ± 0.8 μM and 27 ± 3 μM, respectively].

N,N-Dimethylsphingosine, an endogenous metabolite, is a potent competitive sphingosine kinase (SphK) inhibitor that selectively inhibits sphingosine phosphorylation without affecting its N-acylation.DMS is elevated in models of neuropathic pain, and may mediate mechanical nociception by increasing the release of IL-1β and MCP-1.

SK1-I hydrochloride is the salt form of SK1-I(BML-258). SK1-I is a selective and competitive sphingosine kinase 1 (SphK1) inhibitor and sphingosine analog that is inactive against SphK2 and a variety of other protein kinases, and possesses anti-leukemic potential to inhibit tumor cell growth and promote apoptosis.

(R)-FTY720-OMe is a structural analogue of FTY720 which acts as a specific competitive inhibitor of sphingosine kinase 2 (SK2). Furthermore, (R)-FTY720-OMe does not inhibit sphingosine kinase 1 (SK1) activity.

KSI-6666 is an orally effective competitive antagonist of sphingosine 1-phosphate receptor 1 (S1PR1), with an IC50 value of 6.4 nM. It exhibits anti-inflammatory activity in models of autoimmune encephalomyelitis and T-cell transfer-induced colitis.