BQZ-485
BQZ-485 is a GDI2 inhibitor and a paraptosis inducer with antitumor activity. BQZ-485 binds to the Rab-binding platform domain of GDI2, disrupts the interaction between GDI2 and Rab1A, and impairs the membrane recycling of Rab1A. BQZ-485 blocks vesicle trafficking from the endoplasmic reticulum to the Golgi apparatus, and induces endoplasmic reticulum expansion, endoplasmic reticulum fusion, endoplasmic reticulum stress, unfolded protein response and cytoplasmic vacuolization. BQZ-485 is applicable to pancreatic cancer-related research.
For research use only. We do not sell to patients.
- CAS No.: 1906915-49-8
- Formula: C32H39NO3
- Molecular Weight:485.66
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Storage:
Please store the product under the recommended conditions in the Certificate of Analysis.
Biological Activity
Description
IC50 & Target
[1]|
eIF2-α |
Cellular Effect
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Cell Line
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Type | Value | Description | References |
|---|---|---|---|---|
| PC-3 | IC50 |
0.57 μM
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Antiproliferative activity against human PC-3 prostate cancer cells assessed as reduction in cell viability incubated for 48 h by cell viability assay.
Antiproliferative activity against human PC-3 prostate cancer cells assessed as reduction in cell viability incubated for 48 h by cell viability assay.
|
PMC10598831 |
In Vitro
BQZ-485 (compound 1) (0.1-10 μM; 48 h) potently inhibits the proliferation of human prostate cancer cell line PC-3, with an IC50 value of 0.57 μM[1].
BQZ-485 stabilizes the bindable and purified wild-type GDI2 protein; it directly binds to the purified GDI2 protein with a KD value of 46 μM[1].
BQZ-485 binds to domain I within the Rab-binding platform of GDI2, with a key interaction occurring with the Tyr245 residue; it inhibits the GDI2-Rab1A interaction in a NanoLuc-based cell-free assay, with an IC50 of 6.85 μM; it can inhibit GDI2WT-mediated retrieval of Rab1A from membranes, with an EC50 of 4.96 μM[1].
BQZ-485 (2 μM; 24 h) disrupts the subcellular distribution of Rab1A in human prostate cancer cell line PC-3, reducing cytoplasmic Rab1A while increasing membrane-bound Rab1A; it can disrupt the interaction between endogenous GDI2 and Rab1A in human prostate cancer cell line PC-3 expressing wild-type GDI2[1].
BQZ-485 (1 μM; 8 h, 0-720 min) induces endoplasmic reticulum-derived cytoplasmic vacuolization and paraptotic cell death in human prostate cancer cells PC-3[1].
BQZ-485 (1 μM; 24 h) induces endoplasmic reticulum stress and activates the unfolded protein response in human prostate cancer PC-3 cells, which is characterized by increased expression levels of GRP78, CHOP and p-eIF2α[1].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
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Cell Line:PC-3 human prostate cancer cells
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Concentration:2 μM
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Incubation Time:24 h
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Result:Caused depletion of Rab1A in the cytosolic fraction and accumulation of Rab1A in the membrane fraction, indicating disrupted Rab1A recycling.
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Cell Line:PC-3 human prostate cancer cells
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Concentration:1 μM
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Incubation Time:24 h
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Result:Upregulated the ER stress/UPR markers GRP78, CHOP, and phosphorylated eIF2α (p-eIF2α) compared to DMSO control.
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Cell Line:PC-3 human prostate cancer cells
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Concentration:0, 0.63, 1.25, 2.5, 5, 10, 20 μM
GDI2WT or GDI2Y245A 1 μM -
Incubation Time:30 min
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Result:Reduced GDI2‑mediated extraction of membrane‑bound Rab1A with an EC50 value of 4.96 μM.
Chemical Information
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CAS No. 1906915-49-8
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Molecular Weight 485.66
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Formula C32H39NO3
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SMILES
CC1=CC(C)=CC(COC2=CC3=C([C@](C[C@@H](O)C[C@@H]4C)([H])N4CC3)C=C2OCC5=CC(C)=CC(C)=C5)=C1
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Shipping
Room temperature in continental US; may vary elsewhere.
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Storage
Please store the product under the recommended conditions in the Certificate of Analysis.
Purity & Documentation
References
Calculators
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)