MS143
Based on 1 Customer Validation
MS143 is a VHL-recruiting AKT protein PROTAC degrader with a DC50 of 46 nM in PC3 prostate cancer cells. MS143 preferentially binds to AKT1 and AKT3, with weaker binding activity towards AKT2. MS143 degrades AKT and blocks the phosphorylation of downstream signaling molecules in the PI3K/AKT/mTOR pathway. MS143 inhibits cancer cell growth and xenograft tumor growth. MS143 can be used for research on prostate cancer, triple-negative breast cancer, and breast cancer.
(Pink: Akt ligand (HY-15431); Blue: VHL ligand (HY-125845); Black: linker).
For research use only. We do not sell to patients.
- CAS No.: 2376137-41-4
- Formula: C59H81ClN12O6S
- Molecular Weight:1121.87
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Storage:Powder -20°C, 3 years ; In solvent -80°C, 6 months , -20°C, 1 month
All PROTACs Isoforms
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Biological Activity
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Akt 46 nM (DC50) |
Akt1 26 nM (Kd) |
Akt2 400 nM (Kd) |
Akt3 88 nM (Kd) |
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Cell Line
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Type | Value | Description | References |
|---|---|---|---|---|
| MDA-MB-468 | GI50 |
1 μM
Compound: 20; , MS143
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Antiproliferative activity against human MDA-MB-468 cells assessed as cell growth by measured after 5 days by IncuCyte zoom live cell analysis
Antiproliferative activity against human MDA-MB-468 cells assessed as cell growth by measured after 5 days by IncuCyte zoom live cell analysis
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[PMID: 35119851] |
| PC-3 | GI50 |
0.8 μM
Compound: 20; , MS143
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Antiproliferative activity against human PC-3 cells assessed as inhibition of cell growth measured after 5 days by IncuCyte zoom live cell analysis
Antiproliferative activity against human PC-3 cells assessed as inhibition of cell growth measured after 5 days by IncuCyte zoom live cell analysis
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[PMID: 35119851] |
MS143 (compound 20) exhibits the highest affinity for AKT1, moderate affinity for AKT3, and lower affinity for AKT2, with corresponding Kd values of 26 nM, 88 nM, and 400 nM[1].
MS143 (1 nM-10 μM; 24 h) potently induces concentration-dependent degradation of total AKT in PC3 cells, with a DC50 of 46 nM[1].
MS143 (1 μM; 1-24 h) induces rapid AKT degradation and inhibits downstream signaling pathways in PC3 cells, with significant degradation achieved within 4 h and complete depletion within 8 h at the concentration of 1 μM[1].
MS143 (1 μM; 24 h following 2 h pretreatment) induces AKT degradation in PC3 cells in a manner dependent on the VHL E3 ligase and the ubiquitin-proteasome system, which is confirmed by experiments showing that specific pathway inhibitors and competitors restore AKT levels[1].
MS143 (administered for 5 consecutive days) potently inhibits the proliferation of PC3 and MDA-MB-468 cancer cells, with GI50 values of 0.8 μM and 1.0 μM in the two cell lines, respectively[1].
MS143 (100 nM-1 μM) exhibits significantly greater selectivity for the degradation of AKT1 and AKT3 over AKT2 in PC3 cells, and depletes approximately 90% of AKT1/AKT3 at a concentration of 100 nM[1].
MS143 (1 μM; 24 h, followed by washout periods) induces sustained AKT degradation and downstream signaling pathway inhibition in PC3 cells, with only partial recovery of AKT levels observed 48 h after compound washout[1].
MS143 (1 μM-10 μM; 24 h) potently induces AKT degradation and downstream signaling pathway inhibition in BT474 cells, and effectively suppresses colony formation of this cell line[1].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
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Cell Line:PC3 prostate cancer cells
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Concentration:1 nM, 3 nM, 10 nM, 30 nM, 100 nM, 300 nM, 1 μM, 3 μM, 10 μM
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Incubation Time:24 h
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Result:Induced concentration-dependent degradation of total AKT (T-AKT), with a DC50 of 46 nM.
Achieved complete T-AKT depletion at concentrations of 300 nM and higher.
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Cell Line:PC3 prostate cancer cells
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Concentration:1 μM
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Incubation Time:1 h, 2 h, 4 h, 8 h, 12 h, 24 h
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Result:Induced substantial AKT degradation and inhibited phosphorylated PRAS40 (P-PRAS40) and phosphorylated S6 (P-S6) phosphorylation within 4 h.
Achieved complete depletion of T-AKT within 8 h.
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Cell Line:PC3 prostate cancer cells
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Concentration:1 μM (MS143 (HY-143883); pretreatment with 1 μM VHL-2, 1 μM MLN4924 (HY-70062), 10 μM MG132 (HY-13259), or 1 μM AZD5363 (HY-15431))
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Incubation Time:24 h (MS143 incubation following 2 h pretreatment)
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Result:Pretreatment with VHL-2, MLN4924, MG132, or AZD5363 significantly diminished MS143's AKT degradation activity and restored T-AKT levels.
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Cell Line:PC3 prostate cancer cells
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Concentration:1 μM
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Incubation Time:24 h, followed by 0 h, 24 h, 48 h washout periods
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Result:Induced profound, persistent AKT degradation.
T-AKT levels and downstream signaling inhibition were only partially recovered 48 h post-washout.
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Cell Line:BT474 breast cancer cells
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Concentration:1, 5, 10 μM
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Incubation Time:24 h
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Result:Induced potent AKT degradation and downstream signaling inhibition at tested concentrations, with activity similar to the VHL-recruiting degrader MS21 and slightly enhanced downstream signaling inhibition compared to MS21.
Effectively inhibited colony formation in BT474 cells, similar to MS21.
| Species | Dose | Route | Cmax | Tmax | AUC0-12 |
|---|---|---|---|---|---|
| Mice[1] | 75 mg/kg | i.p. | 7000 ng/mL | 2 h | 63600 ng·h/mL |
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
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Animal Model:Nude mice (Foxn1nu, athymic
nude
(Male immunocompromised NU/J mice
(6 weeks old) were engrafted with PC-3
human prostate cancer cells)[1] -
Dosage:75 mg/kg
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Administration:i.p.; once daily; 22 days
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Result:Exerted 92% tumor growth suppression versus vehicle control.
Produced negligible body weight decline in treated mice.
Eliminated nearly all total AKT and Ser473-phosphorylated AKT within tumor tissue.
Diminished Thr246-phosphorylated PRAS40 abundance in tumor samples.
Chemical Information
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CAS No. 2376137-41-4
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Appearance Solid
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Molecular Weight 1121.87
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Formula C59H81ClN12O6S
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Color White to off-white
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SMILES
O=C(N1[C@@H](C[C@H](C1)O)C(NCC2=CC=C(C3=C(N=CS3)C)C=C2)=O)[C@H](C(C)(C)C)NC(CCCCCCCCCCC(N(CC4)CCN4CC[C@@H](C5=CC=C(C=C5)Cl)NC(C6(CCN(CC6)C7=C8C(NC=C8)=NC=N7)N)=O)=O)=O
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Shipping
Room temperature in continental US; may vary elsewhere.
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Storage
Powder -20°C 3 years In solvent -80°C 6 months -20°C 1 month
Purity & Documentation
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Data Sheet (276 KB)
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SDS (251 KB)
- English - EN (251 KB)
- Français - FR (251 KB)
- Deutsch - DE (251 KB)
- Norwegian - NO (251 KB)
- Español - ES (251 KB)
- Swedish - SV (251 KB)
- Italian - IT (251 KB)
- Korean - KR (251 KB)
- Portuguese - PT (251 KB)
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Handling Instructions (2659 KB)
References
Calculators
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)