2225938-17-8
2225938-17-8 structure
- Name: MS1943
- Chemical Name: MS1943
- CAS Number: 2225938-17-8
- Molecular Formula: C42H54N8O3
- Molecular Weight: 718.93
- Catalog: Signaling Pathways Epigenetics Histone Methyltransferase
- Create Date: 2020-04-14 09:11:58
- Modify Date: 2025-08-26 00:22:48
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MS1943 is a first-in-class, orally bioavailable EZH2 selective degrader, with an IC50 of 120 nM. MS1943 significantly reduces EZH2 protein levels in numerous triple-negative breast cancer (TNBC) and other cancer and noncancerous cell lines. MS1943 effectively blocks proliferation of multiple TNBC and other cancer cell lines[1].
| Name | MS1943 |
|---|
| Description | MS1943 is a first-in-class, orally bioavailable EZH2 selective degrader, with an IC50 of 120 nM. MS1943 significantly reduces EZH2 protein levels in numerous triple-negative breast cancer (TNBC) and other cancer and noncancerous cell lines. MS1943 effectively blocks proliferation of multiple TNBC and other cancer cell lines[1]. |
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| Related Catalog | |
| Target |
EZH2:120 nM (IC50) |
| In Vitro | MS1943 (0.625-5 μM; 3 days)inhibits cell growth with an GI50 of 2.2 µM[1]. MS1943 (0.625-5 μM; 4 days)induces cell death in MDA-MB-468 cells. MS1943 effectively reduces EZH2 levels in BT549, HCC70 and MDA-MB-231 TNBC cells, as well as KARPAS-422 and SUDHL8 lymphoma cells and PNT2 non-cancerous prostate cells[1]. MS1943 (1.25-5.0μM; 2 days) inhibits EZH2 and SUZ12 protein levels in a concentration- and timedependent manner, without affecting EED protein levels, whereas the H3K27me3 mark was also suppressed[1]. Cell Viability Assay[1] Cell Line: MDA-MB-468 cells Concentration: 0.625, 1.25, 2.5, 5 μM Incubation Time: 3 days Result: Inhibits cell growth with an GI50 of 2.2 µM. Western Blot Analysis[1] Cell Line: MDA-MB-468 cells Concentration: 1.25, 2.5, 5.0 μM Incubation Time: 2 days Result: Reduced EZH2 protein levels in a concentration- and time-dependent manner. |
| In Vivo | MS1943 (150 mg/kg body weight; i.p.; once daily for 36 days) suppresses tumor growth[1]. MS1943 induces apoptosis in the MDA-MB-468 xenograft model[1]. A single i.p. injection of MS1943 at 50 mg/kg body weight achieved a peak plasma concentration (Cmax) of 2.9 µM and resulted in plasma concentrations above its cellular IC50 value for ~2h. A single 150 mg/kg body weight p.o. dose achieved Cmax of 1.1 µM, but plasma concentrations were below the cellular IC50 value[1]. Animal Model: Eight-week-old female BALB/c nude mice (MDA-MB-468 xenografts)[1] Dosage: 150 mg/kg body weight Administration: i.p.; once daily for 36 days Result: Suppresses tumor growth. |
| References |
| Molecular Formula | C42H54N8O3 |
|---|---|
| Molecular Weight | 718.93 |