The Amplite® Fluorimetric Neutrophil Elastase Activity Assay Kit provides a robust and accurate method for quantifying neutrophil elastase (NE) activity. This assay is based on the proteolytic cleavage of a synthetic substrate by NE, which can be quantified at Ex/Em= 360/470 nm. It offers a direct measure of enzymatic activity proportional to the NE present in the samples. The kit’s straightforward protocol is optimized for the sensitive detection of NE in blood and plasma samples and is suitable for screening and characterizing chemotactic agents triggering neutrophil stimulation. Neutrophil elastase, also known as leukocyte elastase, ELANE, ELA2, elastase 2, neutrophil, elaszym, serine elastase, subtype human leukocyte elastase (HLE) is a cytotoxic Serine Protease with a broad substrate specificity. Azurophil granules of neutrophil store NE and release them in response to multiple stimuli like pathogens, immune complexes, or chemotactic agents such as PMA causing degradation of a range of extracellular matrix proteins, including fibronectin, laminin, proteoglycans, collagens, and elastin. NE hydrolysis accounts for approximately 80% of the total protease hydrolysis activity in the human body. Disease implications of NE include cystic fibrosis, COPD, lung emphysema, rheumatoid arthritis, and adult respiratory distress syndrome. NE has also been associated with lung injury seen in COVID-19.
Neutrophil Elastase Remodels Mammary Tumors to Facilitate Lung Metastasis.
Authors:
Lulla, Amriti R and Akli, Said and Karakas, Cansu and Caruso, Joseph A and Warma, Lucas D and Fowlkes, Natalie W and Rao, Xiayu and Wang, Jing and Hunt, Kelly K and Watowich, Stephanie S and Keyomarsi, Khandan
Journal:
Molecular cancer therapeutics (2024): 492-506
Human neutrophil elastase inhibitors: Classification, biological-synthetic sources and their relevance in related diseases.
Authors:
Ocampo-Gallego, Jhonnatan Styver and Pedroza-Escobar, David and Caicedo-Ortega, Ana Ruth and Berumen-Murra, María Teresa and Novelo-Aguirre, Ana Lucía and de Sotelo-León, Rebeca Denis and Delgadillo-Guzmán, Dealmy
Journal:
Fundamental & clinical pharmacology (2024): 13-32
Elevated first-trimester neutrophil elastase and proteinase 3 increase the risk of gestational diabetes mellitus and adverse fetal outcomes.
Authors:
Wang, Lihong and Zhou, Zhoujunhao and Xu, Xinming and Li, Yue and Zhang, Rui and Yu, Zhiyan and Huang, Xinmei and Zang, Shufei and Sun, Tiange
Journal:
Reproductive biology and endocrinology : RB&E (2024): 2
Neutrophil Elastase Degrades Histone Deacetylases and Sirtuin 1 in Primary Human Monocyte Derived Macrophages.
Authors:
Zheng, Shuo and Bulut, Gamze B and Kummarapurugu, Apparao B and Ma, Jonathan and Voynow, Judith A
Journal:
International journal of molecular sciences (2024)
Botulinum toxin type A ameliorates rat dorsal root ganglia neuron pyroptosis in postherpetic neuralgia by upregulating cathelicidin antimicrobial peptide to inhibit neutrophil elastase.