Z-LEHD-FMK TFA 是一种选择性和不可逆的 caspase-9 抑制剂,可防止致命的再灌注损伤并减弱细胞凋亡。Z-LEHD-FMK TFA 在大鼠脊髓损伤模型中也表现出神经保护作用。
生物活性 |
Z-LEHD-FMK TFA is a selective and irreversible inhibitor of caspase-9, protects against lethal reperfusion injury and attenuates apoptosis. Z-LEHD-FMK TFA exhibits the neuroprotective effect in a rat model of spinal cord trauma[1][2][3].
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IC50 Target |
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体外研究 (In Vitro) |
Z-LEHD-FMK (20 μM; pretreated for 30 min) completely protects HCT116 and 293 cells from TRAIL-induced toxicity[1]. Z-LEHD-FMK (20 μM ; 6 h) protects normal human hepatocytes from TRAIL-induced apoptosis[1].
MCE has not independently confirmed the accuracy of these methods. They are for reference only.
Apoptosis Analysis[1]
Cell Line: |
SW480, H460, HCT116 and 293 cells |
Concentration: |
20 μM |
Incubation Time: |
Pretreated for 30 min |
Result: |
Protected HCT116 and 293 cells from TRAIL-induced apoptosis. |
Western Blot Analysis[1]
Cell Line: |
HCT116, SW480 cells |
Concentration: |
20 μM |
Incubation Time: |
2 h |
Result: |
Protected procaspase 3 from cleavage in HCT116 cells but not in SW480 cells, especially at the 16-h time point. |
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体内研究 (In Vivo) |
Z-LEHD-FMK (0.8 μmol/kg; i.v. for 7 d) protects neurons, glia, myelin, axons, and intracellular organelles in spinal cord injury (SCI) rats[2].
MCE has not independently confirmed the accuracy of these methods. They are for reference only.
Animal Model: |
Male Wistar albino rats (250-350 g) with SCI[2] |
Dosage: |
0.8 μmol/kg |
Administration: |
I.v. for 1 or 7 days |
Result: |
Decreased the mean apoptotic cell count at 24 hours and 7 days postinjury. |
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分子量 |
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Formula |
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CAS 号 |
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运输条件 |
Room temperature in continental US; may vary elsewhere.
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储存方式 |
Please store the product under the recommended conditions in the Certificate of Analysis.
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Solvent Solubility |
In Vitro:;
H2O
Peptide Solubility and Storage Guidelines:
1.;;Calculate the length of the peptide.
2.;;Calculate the overall charge of the entire peptide according to the following table:
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Contents |
Assign value |
Acidic amino acid |
Asp (D), Glu (E), and the C-terminal -COOH. |
-1 |
Basic amino acid |
Arg (R), Lys (K), His (H), and the N-terminal -NH2 |
+1 |
Neutral amino acid |
Gly (G), Ala (A), Leu (L), Ile (I), Val (V), Cys (C), Met (M), Thr (T), Ser (S), Phe (F), Tyr (Y), Trp (W), Pro (P), Asn (N), Gln (Q) |
0 |
3.;;Recommended solution:
Overall charge of peptide |
Details |
Negative (lt;0) |
1.;;Try to dissolve the peptide in water first. 2.;;If water fails, add NH4OH (lt;50 μL). 3.;;If the peptide still does not dissolve, add DMSO (50-100 μL) to solubilize the peptide. |
Positive (gt;0) |
1.;;Try to dissolve the peptide in water first. 2.;;If water fails, try dissolving the peptide in a 10%-30% acetic acid solution. 3.;;If the peptide still does not dissolve, try dissolving the peptide in a small amount of DMSO. |
Zero (=0) |
1.;;Try to dissolve the peptide in organic solvent (acetonitrile, methanol, etc.) first. 2.;;For very hydrophobic peptides, try dissolving the peptide in a small amount of DMSO, and then dilute the solution with water to the desired concentration. |
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参考文献 |
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[1]. Ozoren N, 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 Nov 15; 60(22): 6259-65.
[2]. Colak A, 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 Mar; 2(3): 327-34.
[3]. Mocanu MM, et, al. Caspase inhibition and limitation of myocardial infarct size: protection against lethal reperfusion injury. Br J Pharmacol. 2000 May; 130(2): 197-200.
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