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    SB273005
    SB273005

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    This product is for research use only, not for human use. We do not sell to patients.
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    InvivoChem Cat #: V1600
    CAS #: 205678-31-5Purity ≥98%

    Description: SB273005 (SB 273005; SB-273005) is a novel and potent integrin inhibitor with potential usefulness in bone resorption, osteoporosis and arthritis. It inhibits integrin αvβ3 receptor and αvβ5 receptor with Ki values of 1.2 nM and 0.3 nM, respectively. SB 273005 binds αvβ3 and αvβ5 with low nM affinity, but binds weakly to integrins αIIbβ3 and α5β1. SB 273005 inhibits αvβ3-mediated cell adhesion with an IC50 value of 3 nM, endothelial cell migration with an IC50 of 1.8 nM, and osteoclast-mediated bone resorption with an IC50 of 11 nM in vitro.

    References: J Med Chem. 2000 Jan 13;43(1):22-6; Arthritis Rheum. 2001 Jan;44(1):128-37.

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    Molecular Weight (MW)451.44
    FormulaC22H24F3N3O4
    CAS No.205678-31-5
    Storage-20℃ for 3 years in powder form
    -80℃ for 2 years in solvent
    Solubility (In vitro)DMSO: 90 mg/mL (199.4 mM)
    Water: <1 mg/mL
    Ethanol: 16 mg/mL (35.4 mM)
    Other infoChemical Name: 2-[(4S)-8-[2-[6-(Methylamino)pyridin-2-yl]ethoxy]-3-oxo-2-(2,2,2-trifluoroethyl)-4,5-dihydro-1H-2-benzazepin-4-yl]acetic acid
    InChi Key: KSSPHFGIOASRDE-HNNXBMFYSA-N
    InChi Code: InChI=1S/C22H24F3N3O4/c1-26-19-4-2-3-17(27-19)7-8-32-18-6-5-14-9-15(11-20(29)30)21(31)28(12-16(14)10-18)13-22(23,24)25/h2-6,10,15H,7-9,11-13H2,1H3,(H,26,27)(H,29,30)/t15-/m0/s1
    SMILES Code: O=C(O)C[[email protected]]1C(N(CC(F)(F)F)CC2=CC(OCCC3=NC(NC)=CC=C3)=CC=C2C1)=O
    SynonymsSB-273005; SB 273005; SB273005


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    In Vitro

    In vitro activity: In vitro, SB273005 inhibits human osteoclast-mediated bone resorption with IC50 of 11 nM. In blood containing MDA-MB-231 cells, a combination of SB273005 and lamifiban inhibits tumor cell adhesion to vascular extracellular matrix (ECM).


    Kinase Assay: SB 273005 binds αvβ3 and αvβ5 with low nM affinity, but binds weakly to integrins αIIbβ3 and α5β1. SB 273005 inhibits αvβ3-mediated cell adhesion with an IC50 value of 3 nM, endothelial cell migration with an IC50 of 1.8 nM, and osteoclast-mediated bone resorption with an IC50 of 11 nM in vitro.

    In VivoIn rat models of bone resorption and osteoporosis, SB273005 (30 mg/kg, p.o.) inhibits the parathyroid hormone-stimulated calcemic response, and inhibits bone loss. In rat with adjuvant-induced arthritis, SB273005 (60 mg/kg, p.o.) significantly reduces the symptoms of adjuvant-induced arthritis. SB273005 (1000 mg/kg/day, p.o.) causes acute, transient necrosis of vascular smooth muscle cell (VSMC) in aorta and renal arteries of mice. In pregnant mice, SB273005 reverses the reduction of Th1 cell-produced IL-2 levels and the increase of Th2 cell-derived IL-10 levels.
    Animal modelThyroidectomized−parathyroidectomized (TPTx) rat model of bone resorption, and ovariectomized (Ovx) rat model of osteoporosis
    Formulation & DosageDissolved in 1% methylcellulose; 30 mg/kg; i.p. injection 
    ReferencesJ Med Chem. 2000 Jan 13;43(1):22-6; Arthritis Rheum. 2001 Jan;44(1):128-37.


    These protocols are for reference only. InvivoChem does not independently validate these methods.

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