| Bioactivity | SB290157 trifluoroacetate is a potent and selective C3a receptor antagonist with an IC50 of 200 nM. |
| Target | IC50: 200 nM (C3aR) |
| Invitro | SB 290157, functions as a competitive antagonist of 125I-C3a radioligand binding to rat basophilic leukemia-2H3 cells expressing the human C3aR (RBL-C3aR), with an IC50 of 200 nM. SB 290157 blocks C3a-induced C3aR internalization in a concentration-dependent manner and C3a-induced Ca2+ mobilization in RBL-C3aR cells and human neutrophils with IC50s f 27.7 and 28 nM, respectively. SB 290157 is selective for the C3aR in that it does not antagonize the C5aR or six other chemotactic G protein-coupled receptors. SB 290157 also inhibits C3a-induced Ca2+ mobilization of RBL-2H3 cells expressing the mouse and guinea pig C3aRs. It potently inhibits C3a-mediated ATP release from guinea pig platelets and inhibits C3a-induced potentiation of the contractile response to field stimulation of perfused rat caudal artery[1]. |
| In Vivo | SB 290157, inhibits neutrophil recruitment in a guinea pig LPS-induced airway neutrophilia model and decreases paw edema in a rat adjuvant-induced arthritis model[1]. The antagonist is able to reduce joint swelling only at 3 h, and about 50% inhibition of joint swelling is observed with the concentration of 30 mg/kg. The C3 level is significantly decreased at 3 h compared with naive mice showing complement consumption. Furthermore, the C3 activation is observed and increased corresponding to the graded concentration of anti-OVA pAb[2]. |
| Name | SB290157 trifluoroacetate |
| CAS | 1140525-25-2 |
| Formula | C24H29F3N4O6 |
| Molar Mass | 526.51 |
| Appearance | Solid |
| Transport | Room temperature in continental US; may vary elsewhere. |
| Storage | -20°C, sealed storage, away from moisture *In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture) |
| Reference | [1]. Ames RS, et al. Identification of a selective nonpeptide antagonist of the anaphylatoxin C3areceptor that demonstrates antiinflammatory activity in animal models. J Immunol. 2001 May 15;166(10):6341-8. [2]. Hutamekalin P, et al. Effect of the C3a-receptor antagonist SB 290157 on anti-OVA polyclonalantibody-induced arthritis. J Pharmacol Sci. 2010;112(1):56-63. |
SB290157 trifluoroacetate
CAS: 1140525-25-2 F: C24H29F3N4O6 W: 526.51
SB290157 trifluoroacetate is a potent and selective C3a receptor antagonist with an IC50 of 200 nM.
Data collection：peptidedb@qq.com
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