2. BMS-066

BMS-066 is an IKKβ/Tyk2 pseudokinase inhibitor, with IC50s of 9 nM and 72 nM, respectively.

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BMS-066 Chemical Structure

BMS-066 Chemical Structure

CAS No. : 914946-88-6

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BMS-066 Related Antibodies

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Description

BMS-066 is an IKKβ/Tyk2 pseudokinase inhibitor, with IC50s of 9 nM and 72 nM, respectively.

IC50 & Target

IC50: 13 nM (IKKβ), 4.96 μM (IKKα)[1], 72 nM (Tyk2)[2].
In Vitro

BMS-066 is shown to inhibit IKKβ-catalyzed phosphorylation of IKKβ in vitro with an IC50 of 9 nM and is more than 500-fold selective for IKKβ over the closely related IKKα. To understand the selectivity on a more comprehensive scale, BMS-066 is assayed against 155 additional kinases at 10 μM, and only six of these kinases are inhibited more than 75%. This indicates that BMS-066 is more than 400-fold selective for IKKβ over more than 95% of the kinases tested. For the six kinases showing more than 75% inhibition at 10 μM, IC50 values are determined in dose-response assays and BMS-066 is shown to be more than 30-fold selective against even the next most potently inhibits kinase (Brk). BMS-066 inhibits LPS-stimulated cytokine production in human peripheral blood mononuclear cells, both at the protein and message level, with IC50 values of approximately 200 nM against these endpoints. BMS-066 inhibits the IKKβ-catalyzed phosphorylation of IkBα in LPS stimulated cells with a similar IC50 value[1]. BMS-066 shows IC50 values of 72 and 1020 nM against the Tyk2 pseudokinase domain probe displacement and IL-23-stimulated reporter assays, respectively[2].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

BMS-066 Related Antibodies
In Vivo

Once daily oral doses of 5 and 10 mg/kg starting at the time of adjuvant injection on day 1 significantly reduces paw swelling compared with vehicle-treated rats at the end of the study, with the high dose showing nearly complete suppression. The talocrural (ankle) joint space is narrowed. Inflammatory exudates containing neutrophils and cell debris are also evident within the joint space. The joints from animals receiving 10 mg/kg BMS-066 are normal or show minimal changes in both inflammation and bone resorption. Clear reduction of inflammation is also evident in the low dose of BMS-066 (5 mg/kg) and the bone resorption seems to be more focal and less severe compared with the control. Microcomputed tomography of the hind limbs also show that BMS-066 provides a dose-dependent protection against the pitting, loss of bone mass, woven porous bone, and fusion of the small bones evident in the rats. Bone density measurements also show a clear dose-dependent benefit of treatment with BMS-066. Serum drug level measurements in satellite animals on the first day of dosing show that a single dose provides coverage for approximately 3 h (6 h daily with twice daily dosing) of the mouse whole-blood IC50 value against LPS-induced TNF-α. It is also showed that IKKβ inhibitors suppress TNF-α and IL-1β production within these tissues in experimental arthritis model[1].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
Molecular Weight

379.42

Formula

C19H21N7O2
CAS No.
SMILES

CN1C=NC2=C1C(C=C(C3=CC=CC(CNC(COC)=O)=N3)N4)=C4N=C2NC
Shipping

Room temperature in continental US; may vary elsewhere.
Storage

Please store the product under the recommended conditions in the Certificate of Analysis.
Purity & Documentation
Cell Assay
[1]

When measuring the inhibition by BMS-066 of the phosphorylation of IkBα in human PBMCs, cells at a density of 1×107 per mL in RPMI 1640 medium supplemented with 10% FBS are preincubated for 30 min BMS-066 at 37°C. Cells are then stimulated for 5 min with LPS (100 ng/mL) and pelleted by rapid centrifugation; the pellets are solubilized by use of ice-cold 10×cell lysis buffer. To measure effects on transcription, human PBMCs are plated on 24-well plates at a density of 3×106 cells/well in RPMI 1640 medium plus 10% FBS and HEPES with varying concentrations of BMS-066 (0-10 μM)[1].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.
Animal Administration
[1]

Rats, Mice[1]
Male Lewis rats (225 g) are used. Vehicle (0.02 N HCl) or BMS-066 in vehicle is administered by oral gavage beginning on the day of adjuvant challenge. Eight animals are included in each treatment group. Male Lewis rats (250 g) are immunized intraperitoneally with 200 μg/rat of keyhole limpet hemocyanin diluted in phosphate-buffered saline. BMS-066 in 0.02 N HCl is administered by oral gavage once daily beginning on the day of immunization. Blood samples were collected on day 7 and on day 14 under isoflurane anesthesia. Male DBA/1 mice (20-25 g) are immunized with 200 μg/mouse of bovine type II collagen in 0.1 mL at the base of the tail on day 0 and on day 21. Vehicle (0.02 N HCl) or BMS-066 in vehicle is administered by oral gavage twice daily beginning on day 21. Mice were monitored after the second immunization for the development of paw inflammation. Each paw was individually scored as follows: 0, normal; 1, one or more swollen digits; 2, mild paw swelling; 3, moderate paw swelling; 4, fusion of joints/ankylosis[1].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.
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Help & FAQs
  • Do most proteins show cross-species activity?

    Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

Keywords:

BMS-066914946-88-6BMS066BMS 066Inhibitorinhibitorinhibit

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