PinA1
PinA1 is a selective Molecular glue degrader of CK1α with an EC50 of 2.09 µM. PinA1 induces the formation of a stable CRBN-PinA1-CK1α ternary complex to promote the polyubiquitination and subsequent proteasomal degradation of CK1α. PinA1 activates the p53 signaling pathway. PinA1 induces G1 cell cycle arrest. PinA1 induces p53-dependent Apoptosis. PinA1 can be used in studies related to acute myeloid leukemia.
For research use only. We do not sell to patients.
- Formula: C24H34N4O3
- Molecular Weight:426.55
-
Storage:
Please store the product under the recommended conditions in the Certificate of Analysis.
Biological Activity
Description
Cellular Effect
|
Cell Line
|
Type | Value | Description | References |
|---|---|---|---|---|
| Jurkat | DC50 |
46.9 nM
|
Degradation of CK1α in CK1α-HiBiT engineered Jurkat cells after 16 hours of incubation assessed by HiBiT protein degradation assay using Nano-Glo HiBiT Lytic Reagent with luminescence measurement.
Degradation of CK1α in CK1α-HiBiT engineered Jurkat cells after 16 hours of incubation assessed by HiBiT protein degradation assay using Nano-Glo HiBiT Lytic Reagent with luminescence measurement.
|
42545171 |
| MOLM-13 | IC50 |
below 0.5 μM
|
Reduction of cell viability in TP53 wild-type FLT3-ITD AML MOLM-13 cells incubated for 48 to 120 hours measured by CellTiter-Glo assay.
Reduction of cell viability in TP53 wild-type FLT3-ITD AML MOLM-13 cells incubated for 48 to 120 hours measured by CellTiter-Glo assay.
|
42545171 |
| MV4-11 | IC50 |
below 0.5 μM
|
Reduction of cell viability in TP53 wild-type FLT3-ITD AML MV4-11 cells incubated for 48 to 120 hours measured by CellTiter-Glo assay.
Reduction of cell viability in TP53 wild-type FLT3-ITD AML MV4-11 cells incubated for 48 to 120 hours measured by CellTiter-Glo assay.
|
42545171 |
| MOLM-14 | IC50 |
below 0.5 μM
|
Reduction of cell viability in TP53 wild-type FLT3-ITD AML MOLM-14 cells incubated for 48 to 120 hours measured by CellTiter-Glo assay.
Reduction of cell viability in TP53 wild-type FLT3-ITD AML MOLM-14 cells incubated for 48 to 120 hours measured by CellTiter-Glo assay.
|
42545171 |
In Vitro
PinA1 (up to 100 µM; 1 h) effectively promotes the assembly of the ternary complex between CRBN and CK1α in a fully defined biochemical system, with an EC50 of 2.09 µmol/L[1].
PinA1 (16 h) is a highly potent and cell-preferential CK1α degrader in engineered Jurkat cells, with a DC50 of 46.9 nmol/L against CK1α, and it does not induce significant IKZF1 degradation[1].
PinA1 (at concentrations up to 1 or 100 µM; for 48-120 h) selectively inhibits the proliferation of TP53 wild-type FLT3-ITD AML cell lines with IC50 values below 0.5 µM, whereas TP53-mutant AML cells exhibit tolerance to its antiproliferative effect [1].
PinA1 (1 µM; 24-72 h) induces sustained G1-phase cell cycle arrest in TP53 wild-type MOLM-14 and MV4-11 AML cells, while the cell cycle progression of TP53-mutant AML cells remains largely unaffected[1].
PinA1 (0.1-10 µM) selectively degrades CK1α and strongly activates the p53 signaling pathway exclusively in primary acute myeloid leukemia cells with wild-type TP53, while exhibiting no significant p53-inducing effect in normal hematopoietic cells or primary acute myeloid leukemia cells with mutant TP53[1].
PinA1 selectively degrades CK1α and specifically induces p53-dependent apoptosis in TP53 wild-type acute myeloid leukemia cell lines and in vitro cultured primary acute myeloid leukemia cells, while exhibiting extremely low toxicity to normal human hematopoietic cells[2].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
-
Cell Line:TP53 wild-type and TP53-mutant AML cell lines
-
Concentration:Up to 1 or 100 µmol/L
-
Incubation Time:48 to 120 hours
-
Result:Potently reduces viability of TP53 wild-type FLT3-ITD AML cell lines MOLM-13, MV4-11, and MOLM-14, with all IC50 values below 0.5 µmol/L; TP53-mutant AML cell lines Kasumi-1, KG-1, and THP-1 are highly resistant to PinA1.
-
Cell Line:MOLM-14, MV4-11, OCI-AML3, Kasumi-1, KG-1, and THP-1 AML cell lines
-
Concentration:1 µmol/L
-
Incubation Time:24, 48, or 72 hours
-
Result:Induces prominent G1 cell-cycle arrest in TP53 wild-type MOLM-14 and MV4-11 cells that persists across the full 72 hour observation period; TP53-mutant Kasumi-1, KG-1, and THP-1 cells show only minimal, negligible increases in G1-phase cell population.
In Vivo
PinA1 (35 mg/kg; i.p.; twice daily; 2 weeks) exhibits potent in vivo CK1α degradation, p53 pathway activation, and anti-leukemia efficacy in a systemic AML cell line-derived xenograft model[1].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
-
Animal Model:NOD-Prkdcem26Cd52/Gpt (NOD/SCID) mice (female, 6 to 8 weeks old)[1]
-
Dosage:2-36 mg/kg
-
Administration:i.p.; once daily or twice daily; 14 days
-
Result:Inhibited leukemia cell growth in a dose-dependent manner across both once-daily and twice-daily dosing schedules.
Achieved near-complete inhibition of tumor growth at the highest equivalent total daily dose groups (36 mg/kg once daily, 18 mg/kg twice daily), with near-zero net change in tumor volume between day 0 and day 15.
Showed a reduced tumor growth area under the curve (days 0-15) relative to vehicle-treated controls across all treatment groups.
Confirmed target engagement in harvested tumor samples by CK1α degradation and concurrent p21 upregulation.
Exhibited no significant body weight loss or overt signs of toxicity across all treatment groups.
Chemical Information
-
Molecular Weight 426.55
-
Formula C24H34N4O3
-
SMILES
N[C@@H]1CC[C@@H](N(C2=C(CN([C@@H]3C(NC(CC3)=O)=O)C4=O)C4=CC=C2)CCCCC)CC1
-
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
References
Calculators
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)