Nepafenac
Based on 1 Customer Validation
Nepafenac (AHR 9434; AL 6515), a nonsteroidal anti-inflammatory agent, is a topically administered COX-2 inhibitor with an IC50 of 0.12 μM. Nepafenac exhibits only weak COX-1 inhibitory activity (IC50 = 64.3 μM). Nepafenac possesses unique prodrug properties, which enable it to rapidly convert into the active metabolite Amfenac (HY-17479) in the ocular tissues, thereby achieving high concentrations in the retina and choroid. Nepafenac reduces inflammation and pain by inhibiting the activity of cyclooxygenase (COX) enzymes and thereby decreasing the production of prostaglandin PGE₂. Nepafenac can delay the metastasis of uveal melanoma (UM) in rabbit eyes. Nepafenac is mainly used for pain management and inflammation control after ophthalmic surgeries.
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- Pureté : 99.56%
- CAS No.: 78281-72-8
- Formule: C15H14N2O2
- Masse moléculaire:254.28
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Stockage:Powder -20°C, 3 years , 4°C, 2 years ; In solvent -80°C, 2 years , -20°C, 1 year
Activité biologique
Description
IC50 & Target
[1]|
COX-1 64.3 μM (IC50) |
COX-2 0.12 μM (IC50) |
In Vitro
Nepafenac (0.05%-0.1% eye drops, 0-500 min) inhibits PGE₂ by 90-95% in the isolated rabbit iris/ciliary body and by 55% in the retina/choroid, for a duration of 6 hours and 4 hours, respectively at 1%[1].
Nepafenac (7-117 μM, 0-400 min) has a stronger isolated rabbit corneal and conjunctiva/sclera permeability than Diclofenac (HY-15036) with permeation coefficients (kps) of 727 × 10-6 min-1 and 128 × 10-6 min-1, respectively[2].
Nepafenac (0.05%-0.1% eye drops, 5 min) results in sustained flux of drug across the cornea for 6 h with short term perfusion of the isolated rabbit corneal surface and accumulates at 16.7 μM on the corneal endothelial side[2].
Nepafenac (8.9-140 μM, 0-6 h) can effectively hydrolyze into Amfenac in the cornea, iris/ciliary body, and retina/choroid of both rabbit and human eyes, moreover, the hydrolysis in rabbit cornea shows time and dose dependence[2].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only. Further protocols information, click here.
In Vivo
Nepafenac (0.3% eye drops, topical ocular administration, twice daily for 12 weeks) delays the progression of uveal melanoma (UM) in rabbits[3].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
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Animal Model:Trauma-induced model of acute ocular inflammation established in New Zealand Albino rabbits (2-2.5 kg)[1]
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Dosage:0.1% eye drops
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Administration:Topical ocular administration, single dose
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Result:Reduced protein exudation by 61% and inhibited PGE₂ by 98%. Exhibited the anti-inflammatory effect lasts for 8 hours after a single administration.
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Animal Model:Human UM cell line induced xenograft tumor model established in male New Zealand albino rabbits[3]
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Dosage:0.3% eye drops
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Administration:Topical ocular administration, twice daily for 12 weeks
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Result:Reduced the incidence of tumors.
Alleviated the tumor morphology, mainly presenting as flat lesions (in the control group, large tumors accompanied by vitreous hemorrhage were more common).
Significantly reduced the staining intensity of COX-2 in tumors. Delayed the appearance time of circulating tumor cells (CMCs), and reduced the lung and liver metastasis of the tumor.
Essai clinique
| NCT Number | Sponsor | Condition | Start Date |
Phase
|
|---|---|---|---|---|
| NCT01329991 | Plexxikon| | 2011-05 | PHASE1 |
Chemical Information
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CAS No. 78281-72-8
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Appearance Solid
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Masse moléculaire 254.28
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Formule C15H14N2O2
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Color Light yellow to yellow
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SMILES
O=C(N)CC1=CC=CC(C(C2=CC=CC=C2)=O)=C1N
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Synonyms
AHR 9434; AL 6515
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Livraison
Room temperature in continental US; may vary elsewhere.
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Stockage
Powder -20°C 3 years 4°C 2 years In solvent -80°C 2 years -20°C 1 year
Solvant et solubilité
In Vitro:
DMSO : 100 mg/mL (393.27 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)
Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 2 years; -20°C, 1 year. When stored at -80°C, please use it within 2 years. When stored at -20°C, please use it within 1 year.
Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 2 years; -20°C, 1 year. When stored at -80°C, please use it within 2 years. When stored at -20°C, please use it within 1 year.
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
Protocole
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Cell Cytotoxicity Assay
Cytotoxicity assays are usually based on the assessment of cell membrane damage, which can also be indirectly detected by measuring cell viability. Detection methods include MTT assay, CKK-8 assay, LDH assay and ATP assay, etc.
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Research Protocol for Inflammation-related Diseases
The NLRP3 inflammasome is a cytosolic innate immune signaling platform that integrates priming signals and danger-signal activation to promote caspase-1 activation, maturation of IL-1β and IL-18, and gasdermin D-mediated pyroptotic cell death. The core experimental logic is to determine whether inflammatory disease phenotypes are driven by increased NLRP3 expression, ASC-containing inflammasome assembly, caspase-1 cleavage, GSDMD cleavage, and extracellular release of IL-1β/IL-18 rather than by nonspecific cell injury alone. The pathway is strongly linked to inflammation-related disease phenotypes because monosodium urate crystals activate NALP3/NLRP3 inflammasome signaling in gout-like crystal inflammation, cholesterol crystals activate NLRP3 inflammasomes in atherogenesis models, and DSS-induced intestinal inflammation has been reported to involve NLRP3 inflammasome activity. However, experimental colitis studies also show context-dependent protective effects of NLRP3 inflammasome co
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Orthotopic Cell-Line Xenograft
Orthotopic cell-line xenograft models involve implantation of human cancer cell lines into the anatomically corresponding organ of immunodeficient mice to reproduce tumor growth within a native microenvironment, enabling more clinically relevant tumor behavior compared with subcutaneous models. These models are widely used because orthotopic placement better recapitulates tumor progression, including invasion and metastatic spread, which are often underrepresented in heterotopic implantation systems. Compared with conventional xenografts, orthotopic implantation is described as more technically complex but provides improved simulation of tumor-microenvironment interactions and metastatic behavior, making it particularly valuable for translational oncology research. Surgical orthotopic implantation approaches have been emphasized as enabling faithful reproduction of clinical cancer features, including metastasis and disease progression patterns that align with the tumor’s organ of origi
Pureté et documentation
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Fiche technique (275 KB)
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SDS (398 KB)
- English - EN (398 KB)
- Français - FR (398 KB)
- Deutsch - DE (398 KB)
- Norwegian - NO (398 KB)
- Español - ES (398 KB)
- Swedish - SV (398 KB)
- Italian - IT (398 KB)
- Korean - KR (398 KB)
- Portuguese - PT (398 KB)
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Instruction de manipulation (2659 KB)
Références
[1]. Gamache DA, Graff G, Brady MT et al. Nepafenac, a unique nonsteroidal prodrug with potential utility in the treatment of trauma-induced ocular inflammation: I. Assessment of anti-inflammatory efficacy. Inflammation. 2000 Aug;24(4):357-70. [Content Brief]
[2]. Ke TL, Graff G, Spellman JM, Yanni JM. Nepafenac, a unique nonsteroidal prodrug with potential utility in the treatment of trauma-induced ocular inflammation: II. In vitro bioactivation and permeation of external ocular barriers. Inflammation. 2000 Aug;24(4):371-84. [Content Brief]
[3]. Marshall JC, Fernandes BF, Di Cesare S et al. The use of a cyclooxygenase-2 inhibitor (Nepafenac) in an ocular and metastatic animal model of uveal melanoma. Carcinogenesis. 2007 Sep;28(9):2053-8. [Content Brief]
Complete Stock Solution Preparation Table
Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 2 years; -20°C, 1 year. When stored at -80°C, please use it within 2 years. When stored at -20°C, please use it within 1 year.
| Optional Solvent | Concentration Solvent Mass | 1 mg | 5 mg | 10 mg | 25 mg |
|---|---|---|---|---|---|
| DMSO | 1 mM | 3.9327 mL | 19.6634 mL | 39.3267 mL | 98.3168 mL |
| 5 mM | 0.7865 mL | 3.9327 mL | 7.8653 mL | 19.6634 mL | |
| 10 mM | 0.3933 mL | 1.9663 mL | 3.9327 mL | 9.8317 mL | |
| 15 mM | 0.2622 mL | 1.3109 mL | 2.6218 mL | 6.5545 mL | |
| 20 mM | 0.1966 mL | 0.9832 mL | 1.9663 mL | 4.9158 mL | |
| 25 mM | 0.1573 mL | 0.7865 mL | 1.5731 mL | 3.9327 mL | |
| 30 mM | 0.1311 mL | 0.6554 mL | 1.3109 mL | 3.2772 mL | |
| 40 mM | 0.0983 mL | 0.4916 mL | 0.9832 mL | 2.4579 mL | |
| 50 mM | 0.0787 mL | 0.3933 mL | 0.7865 mL | 1.9663 mL | |
| 60 mM | 0.0655 mL | 0.3277 mL | 0.6554 mL | 1.6386 mL | |
| 80 mM | 0.0492 mL | 0.2458 mL | 0.4916 mL | 1.2290 mL | |
| 100 mM | 0.0393 mL | 0.1966 mL | 0.3933 mL | 0.9832 mL |