1. PROTAC Stem Cell/Wnt JAK/STAT Signaling
  2. PROTACs STAT
  3. SD-436

SD-436 is a highly selective and efficacious STAT3 PROTAC degrader (DC50: 0.5 μM), with IC50 of 19 nM (STAT3), 270 nM (STAT1), 360 nM (STAT4), >10 μM (STAT5) and >10 μM (STAT6). SD-436 promotes ubiquitination and degradation of STAT3, and induces tumor regression. SD-436 can be used for tumor research, such as leukemia and lymphoma (Pink: STAT3 ligand (HY-169361); Blue: E3 ligase ligand (HY-43722); Black: linker (HY-147052).

For research use only. We do not sell to patients.

SD-436 Chemical Structure

SD-436 Chemical Structure

CAS No. : 2497585-50-7

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Description

SD-436 is a highly selective and efficacious STAT3 PROTAC degrader (DC50: 0.5 μM), with IC50 of 19 nM (STAT3), 270 nM (STAT1), 360 nM (STAT4), >10 μM (STAT5) and >10 μM (STAT6). SD-436 promotes ubiquitination and degradation of STAT3, and induces tumor regression. SD-436 can be used for tumor research, such as leukemia and lymphoma (Pink: STAT3 ligand (HY-169361); Blue: E3 ligase ligand (HY-43722); Black: linker (HY-147052)[1].

IC50 & Target[1]

Cereblon

 

STAT3

19 nM (IC50)

STAT1

270 nM (IC50)

STAT5

>10 μM (IC50)

STAT6

>10 μM (IC50)

In Vitro

SD-436 (4 day treatment) inhibits the growth of MOLM-16 leukemia cell line, SU-DHL-1 and SUP-M2 lymphoma cell lines, with IC50 of 0.038 μM (MOLM-16), 0.43 μM (SU-DHL-1) and 0.39 μM (SUP-M2)[1].
SD-436 (0.1 nM-40 μM, 4 or 20 h) selectively reduces the levels of STAT3 protein in human PBMCs, SU-DHL-1 and MOLM-16 cell line (4 h)[1].
SD-436 (0.1 nM-40 μM, 20 h) effectively reduces the levels of the mutated STAT3 protein (STAT3K658R) in a dose-dependent manner in the Pfeiffer cell line, with a DC50 value of 2.5 nM[1].
SD-436 shows excellent stability in mouse, rat, dog, monkey and human plasma, with T1/2 of >120 min[1].
SD-436 has no significant inhibition of the human ether-a-go-go-related gene potassium channels (hERG inhibition: 1.3% for 3μM and 1.1% for 30 μM)[1].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

Western Blot Analysis[1]

Cell Line: PBMC, MOLM-16, SU-DHL-1 and Pfeiffer
Concentration: 0.1 nM, 0.5 nM, 2.5 nM, 13 nM, 64 nM, 320 nM, 1600 nM, 8000 nM, 40000 nM
Incubation Time: 20 h
Result: Reduced the levels of STAT3 protein in human PBMCs and SU-DHL-1 cell line, with DC50 of 0.1 nM and 10 nM, respectively.
Achieved near complete degradation at 320 nM with merely a 4 h treatment time in the MOLM-16 cell line.
Reduced the levels of the mutated STAT3 protein in a dose-dependent manner in the Pfeiffer cell line, with a DC50 value of 2.5 nM.
Showed high selectivity for STAT3 over other STAT proteins.
In Vivo

SD-436 (5 mg/kg, i.v., single) effectively induces rapid, complete, and durable depletion of STAT3 in mouse native (liver and spleen) and MOLM-16 xenograft tumor tissues[1].
SD-436 (5-25 mg/kg, i.v.) shows antitumor activity in leukemia and lymphoma xenograft models in mice[1].
Pharmacokinetics of SD-436 in mice, rats, and dogs

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

Species IV dose (mg/kg) t1/2 (h) Cmax (ng/mL) AUC(0-t) (h × ng/mL) Vz (L/kg) CI (mL/min/kg) Cl (%HBF)
ICR mouse 5 22.1 130,185 859,223 0.10 0.051 0.1%
SD rat 5 1.0 82,626 59,484 0.12 1.4 2.6%
beagle dog 1 2.3 8861 10,699 0.29 1.5 2.7%
Animal Model: MOLM-16 acute leukemia xenograft model and the SU-DHL-1 lymphoma xenograft model in SCID mice (injected subcutaneously with 3 × 106 MOLM-16 cells or 5 × 106 SU-DHL-1 cells)[1]
Dosage: 5, 10, 20 mg/kg (MOLM-16); 10, 25 mg/kg (SU-DHL-1)
Administration: Intravenous injection (i.v.); once a week, four weeks (MOLM-16: 5, 10, 20 mg/kg; SU-DHL-1: 10, 25 mg/kg) or twice a week, four weeks (SU-DHL-1: 25 mg/kg)
Result: Showed that SD-436 at 5 mg/kg was able to achieve a maximum of 76% tumor regression in the MOLM-16 leukemia xenograft model.
Induced complete tumor regression at 10 and 20 mg/kg in the MOLM-16 leukemia xenograft model.
Achieved complete and long-lasting tumor regression in the SU-DHL-1 xenograft model at 25 mg/kg weekly dosing schedule.
Molecular Weight

1248.20

Formula

C58H62F4N9O14PS

CAS No.
SMILES

O=C1[C@H](CN(CC[C@@H]2N1[C@@H](CC2)C(N[C@@H](CCC(N)=O)C(N[C@H](C(N3CCC(CC3)CCC#CC4=CC=CC5=C4CN(C5=O)C6CCC(NC6=O)=O)=O)CC7=CC=C(C(F)=C7)F)=O)=O)C(OC)=O)NC(C8=CC9=C(S8)C=CC(C(F)(P(O)(O)=O)F)=C9)=O

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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
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Help & FAQs
  • Do most proteins show cross-species activity?

    Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

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SD-436
Cat. No.:
HY-169360
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