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Active Neutrophil Elastase (NE)

ELANE; HLE; HNE; ELA2; PMN-E; Neutrophil Elastase; Medullasin; Polymorphonuclear Leukocyte Elastase; Bone Marrow Serine Protease; Leukocyte Elastase; PMN Elastase

ACTIVITY TEST

Neutrophil elastase (NE), also known as polymorphonuclear leukocyte elastase, is a major protease in the primary granules of neutrophils, is involved in microbicidal activity. It is located primarily in the azurophil granules of polymorphonuclear leukocytes. NE is an important factor promoting inflammation, has bactericidal effects, and shortens the inflammatory process. NE also regulates tumor growth by promoting metastasis and tumor microenvironment remodeling. However, NE plays a role in killing tumors under certain conditions and promotes other diseases such as pulmonary ventilation dysfunction. Additionally, it plays a complex role in various physiological processes and mediates several diseases. Lactoferrin (LTF) has been identified as an interactor of NE, thus a functional binding ELISA assay was conducted to detect the interaction of recombinant mouse NE and recombinant goat LTF. Briefly, biotin-linked NE were diluted serially in PBS, with 0.01% BSA (pH 7.4). Duplicate samples of 100 μl were then transferred to LTF-coated microtiter wells and incubated for 1h at 37℃. Wells were washed with PBST 3 times and incubation with Streptavidin-HRP for 30min, then wells were aspirated and washed 5 times. With the addition of substrate solution, wells were incubated 15-25 minutes at 37℃. Finally, add 50 µl stop solution to the wells and read at 450 nm immediately. The binding activity of NE and LTF was shown in Figure 1, the EC50 for this effect is 0.084 ug/mL.

USAGE

Reconstitute in 10mM PBS (pH7.4) to a concentration of 0.1-1.0 mg/mL. Do not vortex.

STORAGE

Avoid repeated freeze/thaw cycles. Store at 2-8°C for one month. Aliquot and store at -80°C for 12 months.

STABILITY

The thermal stability is described by the loss rate. The loss rate was determined by accelerated thermal degradation test, that is, incubate the protein at 37°C for 48h, and no obvious degradation and precipitation were observed. The loss rate is less than 5% within the expiration date under appropriate storage condition.

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Magazine Citations
Mediators of Inflammation Long-Term Leukocyte Filtration Should Be Avoided during Extracorporeal Circulation Hindawi: 612848
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Clin Exp Pharmacol Physiol. Inhibition of ALDH2 protects PC12 cells against formaldehyde-induced cytotoxicity: involving the protection of hydrogen sulphide. pubmed:28251688
Journal of Cardiology Targeted regulation of sympathetic activity in paraventricular nucleus reduces inducible ventricular arrhythmias in rats after myocardial infarction 10.1016:j.jjcc.2018.06.003
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Cell Death & Disease Erythromycin suppresses neutrophil extracellular traps in smoking-related chronic pulmonary inflammation Pubmed: 31515489
Journal of nutritional science and vitaminology Co-Administration of Curcumin and Artepillin C Induces Development of Brown-Like Adipocytes in Association with Local Norepinephrine Production by Alternatively … Pubmed: 31474682
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Pathology & Oncology Research Neutrophil Extracellular Traps Associate with Clinical Stages in Breast Cancer Pubmed: 31656990
Bioscience Reports Inhibition of microRNA-146a attenuated heart failure in myocardial infarction rats Pubmed: 31763669
Oxidative Medicine and Cellular Longevity Neutrophil Elastase Inhibitors Suppress Oxidative Stress in Lung during Liver Transplantation Pubmed: 31871555
Cytokine Levels of pro-and anti-inflammatory cytokines in cystic fibrosis patients with or without gingivitis Pubmed: 31927460
Journal of neural transmission (Vienna, Austria : 1996) Neurotransmitter system aberrations in patients with drug addiction Pubmed: 32804296
experimental eye research Corneal epithelial injury-induced norepinephrine promotes Pseudomonas aeruginosa keratitis Pubmed: 32376471
CLINICAL AND EXPERIMENTAL HYPERTENSION Hyperinsulinemia rather than insulin resistance itself induces blood pressure elevation in high fat diet-fed rats Pubmed: 32349626
Br J Pharmacol Macrophage Extracellular Traps Aggravate Iron Overload©\Related Liver Ischemia/Reperfusion Injury 33959955
Evidence-Based Complementary and Alternative Medicine Zisheng Shenqi Decoction Ameliorates Monosodium Urate-Mediated Gouty Arthritis in Rats via Promotion of Autophagy through the AMPK/mTOR Signaling?¡­ 33505502
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Neuromodulation: Technology at the Neural Interface Transcutaneous Electrical Acustimulation Improved the Quality of Life in Patients With Diarrhea-Irritable Bowel Syndrome Pubmed:35088760
A Novel Role of Tinospora Cordifolia in Amelioration of Cancer-Induced Systemic Deterioration By Taming Neutrophil Infiltration and Hyperactivation
Catalog No. Related products for research use of Mus musculus (Mouse) Organism species Applications (RESEARCH USE ONLY!)
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