1. Membrane Transporter/Ion Channel Cell Cycle/DNA Damage
  2. VDAC PERK
  3. NCATS-SM0225

NCATS-SM0225 is an endoplasmic reticulum-associated degradation (ERAD) inhibitor and a direct binder of VDAC1, VDAC2 and VDAC3. NCATS-SM0225 exhibits an IC50of 1.02 μM for ERAD and a Kd of 3.13 μM for human VDAC1 binding. NCATS-SM0225 disrupts cellular calcium homeostasis, enhances VDAC1-IP3R coupling and activating PERK. NCATS-SM0225 selectively kills cancer cells, exhibits tumor growth inhibitory effects in melanoma xenograft models. NCATS-SM0225 can be used for research on multiple cancers including melanoma, as well as the molecular mechanisms of ERAD and calcium homeostasis regulation.

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NCATS-SM0225

NCATS-SM0225 Chemical Structure

CAS No. : 1212623-02-3

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Description

NCATS-SM0225 is an endoplasmic reticulum-associated degradation (ERAD) inhibitor and a direct binder of VDAC1, VDAC2 and VDAC3. NCATS-SM0225 exhibits an IC50of 1.02 μM for ERAD and a Kd of 3.13 μM for human VDAC1 binding. NCATS-SM0225 disrupts cellular calcium homeostasis, enhances VDAC1-IP3R coupling and activating PERK. NCATS-SM0225 selectively kills cancer cells, exhibits tumor growth inhibitory effects in melanoma xenograft models. NCATS-SM0225 can be used for research on multiple cancers including melanoma, as well as the molecular mechanisms of ERAD and calcium homeostasis regulation[1].

IC50 & Target[1]

VDAC1

3.13 μM (Kd)

VDAC2

 

VDAC3

 

In Vitro

NCATS-SM0225 (0-12800 nM; 30 min) directly binds to recombinant human VDAC1 with a Kd of 3.13 μM.
NCATS-SM0225 (2 μM; 1 h) engages with all three VDAC1, VDAC2, VDAC3 in HeLa cells, as evidenced by enhanced thermal stability of the VDAC proteins[1].
NCATS-SM0225 (100-400 nM) modulates VDAC1 channel function by promoting voltage-dependent closure at lower negative potentials, with a functional IC50 of 140 nM[1].
NCATS-SM0225 (0.625-5 μM; 6 h) potently inhibits ER dislocation in HeLa cells with an IC50 of 1.02 μM, as measured by the NHK-drGFP reporter assay[1].
NCATS-SM0225 (0.625-5 μM; 6-22 h) elevates calcium levels in mitochondria, cytosol, and ER in HeLa cells in a VDAC-dependent manner, with effects enhanced by higher concentrations and longer incubation times[1].
NCATS-SM0225 (0-10 μM; 40-48 h) selectively induces apoptotic cell death in a subset of cancer cell lines while sparing normal cells, with selectivity correlating with its ability to disrupt calcium homeostasis and degrade ERAD complex proteins[1].
NCATS-SM0225 (1.25-10 μM; 6-24 h) induces selective degradation of ERAD complex proteins (HERP1, OS9, FAM8A1) in HeLa cells in a dose- and time-dependent, Ca2+-dependent manner, while activating PERK signaling[1].

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

Cell Viability Assay[1]

Cell Line: HeLa, Huh7, A375, U251, U87, PSN1, U2OS, MCF7ca, A253, BT474, MDA-MB-231, SKBR-3, T47D, MDA-MB-453, primary fibroblasts HDFa, GM05294, GM04390, primary melanocytes HEMa, primary hepatocytes
Concentration: 0, 2, 4, 6, 8, 10 μM
Incubation Time: 48 h
Result: Selectively induced cell death in a subset of cancer cell lines (HeLa, Huh7, A375, U251, U87, PSN1, U2OS, MCF7ca, A253, BT474) with significant viability reduction.
Caused minimal to no viability effect on insensitive cancer cell lines (MDA-MB-231, SKBR-3, T47D, MDA-MB-453) and normal cells up to 10 μM.

Western Blot Analysis[1]

Cell Line: HeLa cells
Concentration: 1.25, 2.5, 5, 10 μM
Incubation Time: 6 h; 24 h
Result: Reduced HERP1, OS9, and FAM8A1 protein levels in a dose-dependent manner.

Western Blot Analysis[1]

Cell Line: HeLa cells
Concentration: 1.25, 2.5, 5 μM
Incubation Time: 6 h
Result: Induced phosphorylation of PERK.
In Vivo

NCATS-SM0225 (20 mg/kg; intraperitoneal injection; daily for 14 days) can significantly inhibit the growth of A375 melanoma xenografts in male BALB/c-nu mice with no detectable toxicity[1].

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

Animal Model: Male BALB/c-nu nude mice (7 weeks old) were subcutaneously injected with A375 human melanoma cells (2 × 106 cells per mouse) which were suspended in a 1:1 mixture with Matrigel into the right flank[1]
Dosage: 20 mg/kg
Administration: intraperitoneal injection; once daily for 14 days
Result: Markedly inhibited tumor growth.
Showed no clinical signs of adverse effects.
Revealed no abnormalities in histological examination of the liver, pancreas, and kidney.
Molecular Weight

460.61

Formula

C23H28N2O4S2

CAS No.
SMILES

O=S(CC1=CC=CC=C1)(NC2=NC([C@@H](C)[C@]3([H])[C@](OC([C@H]4C)=O)([H])[C@@]4([H])CC[C@@]3(C)C5)=C5S2)=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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NCATS-SM0225
Cat. No.:
HY-181529
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