KH176m
KH176m is the major active metabolite of KH176 (HY-121577). KH176m is a microsomal prostaglandin E synthase-1 (mPGES-1) inhibitor that can cross the blood-brain barrier, with an IC50 of 0.16 µM against mouse mPGES-1 and 1.51 µM against human mPGES-1. KH176m blocks LPS- or IL-1β-induced PGE2 production, scavenges ROS, inhibits lipid peroxidation, accelerates NADPH consumption, suppresses the growth of prostate cancer spheroids, reduces the CD44+ CD24− prostate cancer stem cell population, and protects fibroblasts with oxidative phosphorylation defects from redox stress-induced death. KH176m can be used in research related to mitochondrial diseases, inflammatory pain, inflammatory neurological diseases, inflammatory cancers, and prostate cancer.
Nur für Forschungszwecke. Wir verkaufen nicht an Patienten.
- CAS. Nr.: 2095304-61-1
- Formel: C19H28N2O4
- Molecular Weight:348.44
-
Speicherung:
Please store the product under the recommended conditions in the Certificate of Analysis.
Biologische Aktivität
Beschreibung
IC50 & Target
[1]|
mmPGES-1 0.16 μM (IC50) |
hmPGES-1 1.51 μM (IC50) |
In Vitro
KH176m (1 μM; 24 h) selectively reduces elevated levels of PGE2, PGE1, and PGA2 in primary human dermal fibroblasts from patients with mitochondrial complex I deficiency, without altering levels of PGD2 or PGF2α[1].
KH176m (72 h) dose-dependently reduces PGE2 levels in primary human skin fibroblasts from patients with mitochondrial complex I deficiency, with an IC50 of 85.3 nM[1].
KH176m (24 h) dose-dependently and selectively inhibits LPS (HY-D1056)-induced PGE2 production in primary human dermal fibroblasts from healthy donors and RAW264.7 cells, with IC50 values of 92.9 nM and 0.56 nM, respectively, without altering PGD2 levels[1].
KH176m (24 h) dose-dependently and selectively inhibits IL-1β-induced PGE2 production in primary dermal fibroblasts from healthy humans, with an IC50 of 0.28 μM after 24 h of incubation, without altering the level of PGD2[1].
KH176m (15 min) inhibits the enzymatic activity of mPGES-1 in lipopolysaccharide (LPS)-stimulated mouse macrophage-like RAW264.7 cells and microsomes of healthy primary human dermal fibroblasts, with IC50 values of 0.16 μM and 1.51 μM, respectively[1].
KH176m (1-10 μM; 6-24 h) dose-dependently inhibits the expression of mPGES-1 protein and mRNA in LPS- and IL-1β-induced mouse macrophage-like RAW264.7 cells, without altering the expression of COX-2, mPGES-2, cPGES or COX-1[1].
KH176m (0.62-5 µM; 2 min injection, 4 min dissociation) binds directly to purified recombinant human Prdx2 with a KD value of 0.305 µM, whereas KH176 shows no dose-dependent binding to Prdx2[3].
KH176m (1-10 μM; 24 h) dose-dependently reduces the expression of constitutive mPGES-1 protein in two-dimensionally cultured DU145 human prostate cancer cells and induces a decrease in spheroid size[2].
KH176m (0.3-3 μM; 7 days) dose-dependently reduces the sphere size and mPGES-1 mRNA expression of CD44+ CD24− cancer stem cells isolated from DU145 human prostate cancer cells cultured in Matrigel or ultra-low attachment plates for 7 days[2].
KH176m (0.3-3 μM; 7 days) reduces the proportion of CD44+ CD24− cancer stem cells in Matrigel-cultured human prostate cancer DU145 spheroids in a dose-dependent manner[2].
KH176m (3.2-88 nM; 24 h) potently protects complex I-deficient P4 primary human skin fibroblasts and a variety of other oxidative phosphorylation (OXPHOS)-deficient primary human skin fibroblasts against BSO (HY-106376)-induced death, with an EC50 value as low as 3.2 nM[3].
KH176m (255 nM; 24 h) potently reduces ROS levels in complex I-deficient P4 primary human skin fibroblasts, with an IC50 of 255 nM[3].
KH176m (3 µM) effectively scavenges hydrogen peroxide and superoxide anion in complex I-deficient P4 primary human skin fibroblasts[3].
KH176m (24 h) potently reduces the basal cytoplasmic superoxide level in complex I-deficient P4 primary human skin fibroblasts, with an EC50 of 1.7 µM[3].
KH176m (30 min) potently inhibits cumene hydroperoxide-induced lipid peroxidation in complex I-deficient P4 primary human skin fibroblasts, with an IC50 of 0.71 µM[3].
KH176m (30 min) potently reduces mitochondrial superoxide levels in complex I-deficient P4 primary human skin fibroblasts, with an IC50 of 14 µM[3].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
-
Cell Line:LPS-stimulated mouse macrophage-like RAW264.7 cells
-
Concentration:1, 3, 10 μM
-
Incubation Time:6 h (LPS stimulation); 24 h (LPS stimulation)
-
Result:Dose-dependently reduced LPS-induced mPGES-1 expression at both protein and mRNA levels.
Left expression of COX-2, mPGES-2, cPGES, and COX-1 unchanged.
-
Cell Line:IL-1β-stimulated primary human skin fibroblasts (healthy controls) with exogenous PGE2 supplementation
-
Concentration:3 μM
-
Incubation Time:24 h
-
Result:Inhibited IL-1β-induced mPGES-1 protein and mRNA expression.
Had its inhibitory effect reversed by supplementation with exogenous PGE2.
-
Cell Line:human prostate cancer DU145 cell line (2D culture)
-
Concentration:1, 3, 10 μM
-
Incubation Time:24 h
-
Result:Reduced constitutive mPGES-1 protein expression in a dose-dependent manner.
Caused statistically significant reductions relative to vehicle at 3 μM and 10 μM.
Chemical Information
-
CAS. Nr. 2095304-61-1
-
Molecular Weight 348.44
-
Formel C19H28N2O4
-
SMILES
C(C[C@](C(N[C@@H]1CCCNC1)=O)(C)O)C2=C(C)C(=O)C(C)=C(C)C2=O
-
Versand
Room temperature in continental US; may vary elsewhere.
-
Speicherung
Please store the product under the recommended conditions in the Certificate of Analysis.
Reinheit & Dokumentation
Verweise
[1]. Jiang X, et al. Mechanism of action and potential applications of selective inhibition of microsomal prostaglandin E synthase-1-mediated PGE2 biosynthesis by sonlicromanol's metabolite KH176m. Sci Rep. 2021 Jan 13;11(1):880. [Content Brief]
[2]. Jiang X, et al. Sonlicromanol's active metabolite KH176m normalizes prostate cancer stem cell mPGES-1 overexpression and inhibits cancer spheroid growth. PloS one. 2021;16(7):e0254315. [Content Brief]
[3]. Beyrath J, et al. KH176 Safeguards Mitochondrial Diseased Cells from Redox Stress-Induced Cell Death by Interacting with the Thioredoxin System/Peroxiredoxin Enzyme Machinery. Scientific reports. 2018 Apr 26;8(1):6577. [Content Brief]
Calculators
Konzentration (Stammlösung) × Volumen (Stammlösung) = Konzentration (Ziellösung) × Volumen (Ziellösung)
Keywords
- KH176m
- 2095304-61-1
- PGE synthase
- Reactive Oxygen Species (ROS)
- microsomal prostaglandin E synthase-1
- DU145 human prostate cancer cells
- primary human skin fibroblasts
- LNCaP human prostate cancer cells
- prostate cancer stem cells
- mPGES-1
- RAW264.7 cells
- peroxiredoxin
- mitochondrial complex I-deficient patients
- reactive oxygen species
- Inhibitor
- inhibitor
- inhibit