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Development and Validation of an Ultrasensitive Single Molecule Array Digital Enzyme-linked Immunosorbent Assay for Human Interferon-α
Published on: June 14, 2018
[Development of a sensitive enzyme immunoassay for protein 1/Clara cell 10 kDa protein using monoclonal antibodies]
T Yamaguchi1, Y Itoh, T Yamada
1Department of Clinical Pathology, Jichi Medical School, Tochigi.
Insights
A new enzyme-linked immunosorbent assay (ELISA) accurately measures Protein 1 (P1)/Clara cell 10 kDa protein in bodily fluids. This sensitive assay can quantify P1 levels in serum, bronchoalveolar lavage, and seminal fluids.
Area of Science:
- Biochemistry
- Immunology
- Biotechnology
Context:
- Protein 1 (P1), also known as Clara cell 10 kDa protein, is a biologically significant protein.
- Existing methods for P1 quantification may lack the required sensitivity or specificity for certain clinical applications.
- The development of robust diagnostic tools is crucial for understanding P1's role in various physiological and pathological conditions.
Purpose:
- To develop and validate a highly sensitive sandwich enzyme-linked immunosorbent assay (ELISA) for the quantification of Protein 1 (P1).
- To utilize recently generated and characterized monoclonal antibodies for enhanced assay performance.
- To establish the precision, reproducibility, specificity, and sensitivity of the developed ELISA for P1 detection.
Summary:
- A sensitive sandwich ELISA was successfully developed for Protein 1 (P1)/Clara cell 10 kDa protein using two novel monoclonal antibodies.
- The assay demonstrated satisfactory precision, reproducibility, and specificity, including species specificity.
- The detection sensitivity reached 5 ng/l, enabling quantification of P1 in various body fluids such as serum, bronchoalveolar lavage fluid, and seminal fluid.
Impact:
- The developed ELISA provides a sensitive and reliable method for quantifying P1 in biological samples.
- This assay facilitates further research into the clinical significance of P1 in different body fluids.
- Quantification of P1 levels can aid in diagnosing and monitoring conditions associated with this protein.
Abstract:
Protein 1 (P1)/Clara cell 10 kDa protein is a dimer of identical subunits of 70 amino acids. Designed to expand its clinical significance, a sensitive sandwich enzyme-linked immunosorbent assay (ELISA) for P1 was developed using two monoclonal antibodies, which were recently generated and characterized in this laboratory. The precision, reproducibility and specificity of the assay were quite satisfactory. Species specificity was also satisfactory. The detection sensitivity was 5 ng/l; high enough to quantify P1 in several body fluids. P1 was distributed in the value of 13 to 25 micrograms/l, 153-4300 micrograms/l and 145-8600 micrograms/l, in serum, bronchoalveolar lavage fluids and seminal fluids, respectively.
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