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GDC-0152 is a small-molecule IAP antagonist that triggers tumor cell apoptosis by selectively antagonizing IAPs. GDC-0152 binds to the XIAP BIR3 domain, the BIR domain of ML-IAP, and the BIR3 domains of cIAP1 and cIAP2 with K(i) values of 28, 14, 17, and 43 nM, respectively. GDC-0152 inhibits tumor growth when dosed orally in the MDA-MB-231 breast cancer xenograft model. GDC-0152 induces activation of caspase-3/7, and lead to decreased viability of breast cancer cells without affecting normal mammary epithelial cells. GDC-0152 induces NF-κB transcriptional activity leading to expression of several chemokines and cytokines, of which tumor necrosis factor alpha (TNF-α) is the most important for single-agent tumor activity.
| Cell Experiment | |
|---|---|
| Cell lines | MDA-MB-231, mormal HMECs cell lines |
| Preparation method | Cell Viability and Caspase Activation Assays Human breast carcinoma MDA-MB-231 were obtained from ATCC. Normal human mammary epithelial cells (HMECs) were obtained from Cambrex Corp.. Cells were dissociated from tissue culture flasks by incubation with Accutase® (Innovative Cell Technology Inc.) for 5–10 minutes. Detached cells were washed with phosphate-buffered saline (PBS) and were resuspended in assay media (MDA-MB-231 cells: RPMI1640 supplemented with 10% fetal bovine serum [Sigma-Aldrich] and 2 mM L-glutamine [GlutaMAX-1; Gibco/Invitrogen Corp.]) or culture media (HMECs: MEBM® with MEGM SingleQuots® provided by Cambrex Corp.). Cells were placed in tissue culture-treated, white-wall (Corning, Inc.) or black-wall (PE Biosystems), clear-bottom, 96-well plates at 1 × 104 cells/well in a volume of 50 μL. The plates were incubated at 37°C and 5% CO2 overnight, the media was removed, and 1 or it's enantiomer were added in assay media. Cells cultured in white-wall, clear-bottom plates were incubated at 37°C and 5% CO2 for 3 days before cell viability was measured using the CellTiter-Glo® luminescent cell viability assay kit (Promega Corp.) according to the manufacturer's instructions. Cells seeded in black-wall, clear-bottom plates were incubated at 37°C and 5% CO2 for 3–24 hours before caspase-3 and -7 homogeneous activities were assessed using the Apo-ONE® caspase-3/7 assay kit (Promega Corp.) according to the manufacturer's instructions. |
| Concentrations | |
| Incubation time | 3 days |
| Animal Experiment | |
|---|---|
| Animal models | Human breast cancer MDA-MB-231 cells tumor xenograft mice |
| Formulation | PBS |
| Dosages | 4.0 ml/kg |
| Administration | oral gavage |
| Molecular Weight | 498.64 |
| Formula | C25H34N6O3S |
| CAS Number | 873652-48-3 |
| Solubility (25°C) | DMSO 79 mg/mL Ethanol 60 mg/mL |
| Storage |
Powder -20°C 3 years ; 4°C 2 years In solvent -80°C 6 months ; -20°C 1 month |
| Related IAP Products |
|---|
| Sanggenon G
Sanggenon G is a cell-permeable and potent inhibitor of X-linked inhibitor of apoptosis protein (XIAP). |
| TD-1092
TD-1092 is a pan-inhibitor of apoptosis (IAP) degrader with two different types of E3 ligase conjugates, IAP and CRBN, that induces proteasomal degradation of cIAP2 and XIAP in a CRBN-dependent manner. TD1092 also activates apoptotic proteases (apoptosis 3/7) and leads to apoptosis by promoting IAP degradation. In addition, TD1092 also blocks the TNFα-mediated NF-κB signaling pathway and inhibits the phosphorylation of IKK, IkBα, p65, and p38. TD1092 can be used as a PROTAC for cancer research. |
| LBW242
LBW242, a 3-mer and Smac mimetic, is a potent and orally active proapoptotic IAP inhibitor. LBW242 shows effects on mutant FLT3-expressing cells. LBW242 has activity against multiple myeloma, and potentiates TRAIL- and anticancer agent-mediated cell death of ovarian cancer cells. |
| UC-112
UC-112 is a novel potent IAP(Inhibitor of apoptosis) inhibitor. UC-112 potently inhibit cell growth in two human melanoma (A375 and M14) and two human prostate (PC-3 and DU145) cancer cell lines(IC50=0.7-3.4 uM). |
| SBP-0636457
SBP-0636457 (SB1-0636457) is a SMAC mimetic, and as an IAP antagonist. SBP-0636457 binds to the BIR-domains of the IAP proteins, with a Ki of 0.27 μM. SBP-0636457 can be used for the research of solid tumors and hematologic cancers. |
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