The Biosensis NGFR/p75ECDRapidTM enzyme-linked immunosorbent assay (ELISA) Kit s a sandwich ELISA that allows the quantification of the extracellular domain (ECD) of human p75 neurotrophin receptor in less than 4 hours in urine only if used as directed. Please refer to the kit protocol for specific use instructions for urine application.
This ELISA kit consists of a pre-coated mouse monoclonal anti-p75ECD capture antibody, a biotinylated mouse monoclonal anti-p75ECD detection antibody and horseradish peroxidase (HRP)-conjugated streptavidin. The addition of a substrate (3,3',5,5'-tetramethylbenzidine, TMB) yields a colored reaction product which is directly proportional to the concentration of p75ECD present in samples and protein standards. A human p75ECD positive control (QC sample) is provided to assure consistent assay performance.
This NGFR/p75ECD ELISA kit employs a recombinant human p75ECD-Fc chimera. While there is a current lack of a commercially available, true human p75ECD standard, this ELISA kit allows quantification of human p75ECD as p75ECD-Fc human equivalents. Please note that the antibodies used in this ELISA do not cross-react with mouse p75ECD.
Note: For research use only. Not for diagnostic and clinical purposes.
The Biosensis NGFR/p75ECDRapidTM enzyme-linked immunosorbent assay (ELISA) Kit s a sandwich ELISA that allows the quantification of the extracellular domain (ECD) of human p75 neurotrophin receptor in less than 4 hours in urine only if used as directed. Please refer to the kit protocol for specific use instructions for urine application.
This ELISA kit consists of a pre-coated mouse monoclonal anti-p75ECD capture antibody, a biotinylated mouse monoclonal anti-p75ECD detection antibody and horseradish peroxidase (HRP)-conjugated streptavidin. The addition of a substrate (3,3',5,5'-tetramethylbenzidine, TMB) yields a colored reaction product which is directly proportional to the concentration of p75ECD present in samples and protein standards. A human p75ECD positive control (QC sample) is provided to assure consistent assay performance.
This NGFR/p75ECD ELISA kit employs a recombinant human p75ECD-Fc chimera. While there is a current lack of a commercially available, true human p75ECD standard, this ELISA kit allows quantification of human p75ECD as p75ECD-Fc human equivalents. Please note that the antibodies used in this ELISA do not cross-react with mouse p75ECD.
Note: For research use only. Not for diagnostic and clinical purposes.
Application DetailsELISA. For the quantification of Nerve growth factor receptor, extracellular domain (NGFR/p75ECD) in Urine. Please download the detailed product insert for complete instructions for the successful use of this ELISA. Use only as directed.
Scientific BackgroundThe nerve growth factor (NGF) receptor (NGFR), also known as p75 neurotrophin receptor (p75NTR; TNFRS16; CD271) is a common receptor for the neurotrophins NGF, BDNF, NT-3 and NT-4/5. In neurons, p75NTR mediates a variety of physiological functions including survival, apoptosis, neurite outgrowth and synaptic plasticity. A potential pathological role for p75NTR has become evident in recent years. Altered p75NTR expression levels are implicated in degeneration of spinal motor neurons in human and mouse models of amyotrophic lateral sclerosis (ALS). Importantly, the extracellular domain of p75NTR (p75ECD) is shed from the cell membrane and excreted in urine. Recent findings further suggest that p75ECD could be an early biomarker for ALS in humans, as significantly elevated p75ECD levels are found in urine of ALS patients as compared to healthy controls.
Shipping StatementFor order quantities larger than 1 plate, this product is supplied in package units of 2 plates.
Parallelism of six serially diluted human urine samples from healthy donors.
This standard curve generated in our laboratories is for demonstration purposes only, but can be used as a guide to expected performance. A standard curve should be generated for each assay.
Specific ReferencesCovarrubias C et al. (2023) Decrease in the Ratio proBDNF/BDNF in the Urine of Aging Female Patients with OAB Metabolites. 13(6), 723.Application: Human, Urine.
General ReferencesThe following references give a general background on the suitability of p75ECD as a biomarker for ALS disease progression.
Shepheard et al. (2017) Neurology 2017 Feb 22. doi: 10.1212/WNL.0000000000003741. [Epub ahead of print].
Shepheard et al. (2014) PLoS ONE 9(1): e87398. doi:10.1371/journal.pone.0087398.
DiStefano & Johnson (1988) Proc Natl Acad Sci USA 85: 270-274.