Catalog No.S7015 Synonyms: TL32711
Molecular Weight(MW): 806.94
Birinapant is a SMAC mimetic antagonist, mostly to cIAP1 with Kd of <1 nM in a cell-free assay, less potent to XIAP. Phase 2.
Cited by 6 Publications
4 Customer Reviews
Western blot from tumours harvested at day 5 after treatment showing an increase in PARP cleavage in the irinotecan-treated group.
British Journal of Cancer, 2015, 112: 1471–1479. Birinapant purchased from Selleck.
Cell survival of macrophages was measured by MTT assay after(a) 24 h and (b) 2 or 4 h posttreatment of cells with SMAC mimetic (BP, 10 μM) with or without zVAD-fmk (50 μM) or Nec-1 (10 μM). Graphs show the percentage of surviving cells relative to the corresponding vehicle control. These graphs are representative of three biological replicates each carried out in triplicate.
Cell Death Differ, 2016, 23(10):1628-37.. Birinapant purchased from Selleck.
(a) Apoptosis assessed morphologically after DAPI staining (top panels) and by caspase 3/7 activation (bottom panels) in human cholangiocyte cell lines H69 and NHC, and the human breast cancer cell line MDA-MB-231, incubated for 24 h with or without (cnt) the SMAC mimetic TL32711 (1 μM), in the presence or absence of neutralizing antibodies against TNFα (1 μg/ml) or FasL (1 μg/ml), or recombinant TRAIL-R2:Fc (1 μg/ml).
Cell Death Dis, 2017, 8(1):e2535. Birinapant purchased from Selleck.
Purity & Quality Control
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|Description||Birinapant is a SMAC mimetic antagonist, mostly to cIAP1 with Kd of <1 nM in a cell-free assay, less potent to XIAP. Phase 2.|
Birinapant binds with XIAP and cIAP1 with Kd of 45 and <1 nM, respectively. Birinapant induces cell death as a single agent in TRAIL-insensitive SUM190 (ErbB2-overexpressing) cells (IC50, ~300 nM), and significantly increases potency of TRAIL-induced apoptosis in TRAIL-sensitive SUM149 (triple-negative, EGFR-activated) cells. Birinapant causes rapid cIAP1 degradation, caspase activation, PARP cleavage, and NF-κB activation.  Birinapant in combination with TNF-α exhibits a strong antimelanoma effect in vitro. Birinapant in combination with TNF-α(1 ng/mL) inhibits the growth of human melanoma cell lines WTH202, WM793B, WM1366 and WM164 with IC50s of 1.8, 2.5, 7.9 and 9 nM, respectively, while neither compound is effective individually. Birinapant singly treatment induces inhibition on proliferation of WM9 cells with IC50 of 2.4 nM. Birinapant significantly inhibits the target protein cIAP1 and cIAP2 in these cell lines.
|In vivo||Birinapant (30 mg/kg) treatment significantly induces abrogation of tumor growth in melanoma xenotransplantation models 451Lu with. |
Fluorescence polarization assay:The binding affinities of compounds to XIAP and cIAP1 are determined using a fluorogenic substrate and are reported as Kd values. Initially, the dissociation constant (Kd) for the fluorescently labeled modified Smac peptide (AbuRPF-K(5-Fam)-NH2; FP pep-tide) is determined using a fixed concentration of peptide (5 nM) and titrating varying concentrations of protein (0.075–5 μM in half log dilutions). The dose–response curves are produced by a nonlinear least squares fit to a single-site binding model using GraphPad Prism, with 5 nM of FP peptide and 50 nM of XIAP used in the assay. Various concentrations of Smac mimetics (100–0.001 μM in half log dilutions) are added to FP peptide:protein binary complex for 15 min at room temperature in 100μL of 0.1 M potassium phosphate buffer, pH 7.5, containing 100 mg/mL bovine c -globulin. Following incubation, the polarization values are measured on a multi-label plate reader using a 485 nm excitation filter and a 520 nm emission filter.
|In vitro||DMSO||100 mg/mL (123.92 mM)|
|Ethanol||55 mg/mL (68.15 mM)|
|In vivo||Add solvents to the product individually and in order(Data is from Selleck tests instead of citations):
For best results, use promptly after mixing.
* Please note that Selleck tests the solubility of all compounds in-house, and the actual solubility may differ slightly from published values. This is normal and is due to slight batch-to-batch variations.
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* When preparing stock solutions always use the batch-specific molecular weight of the product found on the vial label and MSDS / COA (available online).
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Clinical Trial Information
|NCT Number||Recruitment||Conditions||Sponsor/Collaborators||Start Date||Phases|
|NCT02587962||Not yet recruiting||Solid Tumors||TetraLogic Pharmaceuticals|Merck Sharp & Dohme Corp.||February 2017||Phase 1|Phase 2|
|NCT02756130||Not yet recruiting||Advanced Newly Diagnosed or Recurrent High Grade Serous Carcinomas (HGSC)||Jonsson Comprehensive Cancer Center|TetraLogic Pharmaceuticals||January 2017||Phase 2|
|NCT02288208||Terminated||Hepatitis B||TetraLogic Pharmaceuticals||November 2014||Phase 1|
|NCT02147873||Terminated||Myelodysplastic Syndrome (MDS)|Chronic Myelomonocytic Leukemia (CMML)||TetraLogic Pharmaceuticals||June 2014||Phase 2|
|NCT01940172||Completed||Relapsed Epithelial Ovarian Cancer|Relapsed Primary Peritoneal Cancer|Relapsed Fallopian Tube Cancer||TetraLogic Pharmaceuticals||November 2013||Phase 1|
|NCT01828346||Completed||Myelodysplastic Syndrome||TetraLogic Pharmaceuticals||June 2013||Phase 1|Phase 2|
Answers to questions you may have can be found in the inhibitor handling instructions. Topics include how to prepare stock solutions, how to store inhibitors, and issues that need special attention for cell-based assays and animal experiments.
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