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Z-LEHD-FMK

Catalog No.GC16990

Irreversible Caspase-9 inhibitor.

Products are for research use only. Not for human use. We do not sell to patients.

Z-LEHD-FMK Chemical Structure

Cas No.: 210345-04-3

Size Price Stock Qty
1mg
$279.00
In stock
5mg
$761.00
In stock

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Sample solution is provided at 25 µL, 10mM.

Product Documents

Quality Control & SDS

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Protocol

Cell experiment [1]:

Cell lines

Human colon cancer, HCT116, human embryonic fibroblastand 293 cell lines

Preparation method

Soluble in DMSO > 10 mM. General tips for obtaining a higher concentration: Please warm the tube at 37 ℃ for 10 minutes and/or shake it in the ultrasonic bath for a while. Stock solution can be stored below -20℃ for several months.

Reaction Conditions

20 μM Z-LEHD-FMK for 30 mins followed by 20ng/ml TRAIL for 4 hours

Applications

Z-LEHD-FMK completely protects HCT116 and 293 cells from TRAIL-induced toxicity. Z-LEHD-FMK also protected human hepatocytes from TRAIL-induced apoptosis. The colony growth of HCT116 is reduced in the presence of TRAIL, and there are significantly more colonies present when the HCT116 cells were incubated in the presence of TRAIL and Z-LEHD-FMK.

Animal experiment [2]:

Animal models

Adult male Wistar albino rats, 250 to 350 g, spinal cord injury model

Dosage form

Intravenous 0.8-mM/kg injection of z-LEHD-fmk.

Preparation method

Dry-form z-LEHD-fmk was dissolved in dimethylsulfoxide prepared with phosphatebuffered saline.

Applications

At 24 hours post-injury, the mean apoptotic cell count in trauma-only controls was significantly higher than that in z-LEHD-fmk–treated group. Electron microscopy results also show Z-LEHD-FMK treatment protected neurons, glia, myelin, axons, and intracellular organelles. The specimens treated with z-LEHD-fmk displays significantly fewer apoptotic cells and diminished axonal demyelination.

Other notes

Please test the solubility of all compounds indoor, and the actual solubility may slightly differ with the theoretical value. This is caused by an experimental system error and it is normal.

References:

1. Ozoren N, Kim K, Burns TF, et al. The caspase 9 inhibitor Z-LEHD-FMK protects human liver cells while permitting death of cancer cells exposed to tumor necrosis factor-related apoptosis-inducing ligand. Cancer Res, 2000, 60(22): 6259-6265.

2. Colak A, Karao lan A, Barut S, et al. Neuroprotection and functional recovery after application of the caspase-9 inhibitor z-LEHD-fmk in a rat model of traumatic spinal cord injury. J Neurosurg Spine, 2005, 2(3): 327-334.

Background

Z-LEHD-FMK is a specific and irreversible inhibitor of caspase-9 [1].

Caspase-9 is an initiator caspase and plays an important role in the mitochondrial death pathway. Caspase-9 is activated during programmed cell death and cleaves procaspase-7 and procaspase-3.

Z-LEHD-FMK is a specific and irreversible caspase-9 inhibitor. In HCT116 human colon cancer cell line and 293 human embryonic kidney cell line, Z-LEHD-FMK inhibited apoptosis mediated by tumor necrosis factor-related apoptosis-inducing ligand (TRAIL). These results suggested that TRAIL induced death through the mitochondrial pathway in some human cells. In a colony assay, Z-LEHD-FMK inhibited the reduction of colony growth of HCT116 induced by TRAIL. In normal human hepatocytes, Z-LEHD-FMK protected cells from TRAIL-induced apoptosis. These results suggested that a combination of Z-LEHD-FMK and TRAIL selectively killed cancer cells while protecting normal liver cells [1].

In rats with focal ischemia/reperfusion, Z-LEHD-FMK improved neurological outcome by 63% and reduced infarction volume by 49% [2]. In spinal cord trauma rat model, Z-LEHD-FMK reduced apoptotic cell count and protected neurons, myelin, axons, glia and intracellular organelles in the spinal cord [3].

References:
[1].  Ozoren N, Kim K, Burns TF, et al. The caspase 9 inhibitor Z-LEHD-FMK protects human liver cells while permitting death of cancer cells exposed to tumor necrosis factor-related apoptosis-inducing ligand. Cancer Res, 2000, 60(22): 6259-6265.
[2].  Mouw G, Zechel JL, Zhou Y, et al. Caspase-9 inhibition after focal cerebral ischemia improves outcome following reversible focal ischemia. Metab Brain Dis, 2002, 17(3): 143-151.
[3].  Colak A, Karaoğlan A, Barut S, et al. Neuroprotection and functional recovery after application of the caspase-9 inhibitor z-LEHD-fmk in a rat model of traumatic spinal cord injury. J Neurosurg Spine, 2005, 2(3): 327-334.

Chemical Properties

Cas No. 210345-04-3 SDF
Chemical Name methyl (4S)-5-[[(2S)-1-[[(3S)-5-fluoro-1-methoxy-1,4-dioxopentan-3-yl]amino]-3-(1H-imidazol-5-yl)-1-oxopropan-2-yl]amino]-4-[[(2S)-4-methyl-2-(phenylmethoxycarbonylamino)pentanoyl]amino]-5-oxopentanoate
Canonical SMILES CC(C)CC(C(=O)NC(CCC(=O)OC)C(=O)NC(CC1=CN=CN1)C(=O)NC(CC(=O)OC)C(=O)CF)NC(=O)OCC2=CC=CC=C2
Formula C32H43FN6O10 M.Wt 690.72
Solubility ≥ 107.4 mg/mL in DMSO, ≥ 98.2 mg/mL in EtOH Storage Store at -20° C
General tips Please select the appropriate solvent to prepare the stock solution according to the solubility of the product in different solvents; once the solution is prepared, please store it in separate packages to avoid product failure caused by repeated freezing and thawing.Storage method and period of the stock solution: When stored at -80°C, please use it within 6 months; when stored at -20°C, please use it within 1 month.
To increase solubility, heat the tube to 37°C and then oscillate in an ultrasonic bath for some time.
Shipping Condition Evaluation sample solution: shipped with blue ice. All other sizes available: with RT, or with Blue Ice upon request.

Complete Stock Solution Preparation Table

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1 mg 5 mg 10 mg
1 mM 1.4478 mL 7.2388 mL 14.4776 mL
5 mM 0.2896 mL 1.4478 mL 2.8955 mL
10 mM 0.1448 mL 0.7239 mL 1.4478 mL
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Method for preparing DMSO master liquid: mg drug pre-dissolved in μL DMSO ( Master liquid concentration mg/mL, Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug. )

Method for preparing in vivo formulation: Take μL DMSO master liquid, next addμL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH2O, mix and clarify.

Method for preparing in vivo formulation: Take μL DMSO master liquid, next add μL Corn oil, mix and clarify.

Note: 1. Please make sure the liquid is clear before adding the next solvent.
2. Be sure to add the solvent(s) in order. You must ensure that the solution obtained, in the previous addition, is a clear solution before proceeding to add the next solvent. Physical methods such as vortex, ultrasound or hot water bath can be used to aid dissolving.
3. All of the above co-solvents are available for purchase on the GlpBio website.

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Average Rating: 5 ★★★★★ (Based on Reviews and 38 reference(s) in Google Scholar.)

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