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An enzyme-linked immunoassay for lipoprotein lipase
J W Goers1, M E Pedersen, P A Kern
1Department of Chemistry, California Polytechnic State University, San Luis Obispo 93407.
Analytical Biochemistry
|October 1, 1987
Summary
Researchers developed a sensitive enzyme-linked immunosorbent assay (ELISA) to measure rat lipoprotein lipase (LPL) mass. This assay effectively quantifies LPL in various rat tissues, even with denatured samples.
Area of Science:
- Biochemistry
- Immunology
- Analytical Chemistry
Background:
- Lipoprotein lipase (LPL) is crucial for lipid metabolism.
- Quantifying LPL mass in biological samples is essential for research.
- Existing methods may have limitations in sensitivity or sample versatility.
Purpose of the Study:
- To develop and validate a specific enzyme-linked immunosorbent assay (ELISA) for quantifying rat lipoprotein lipase (LPL) mass.
- To establish a sensitive assay capable of measuring LPL in diverse rat tissue extracts.
Main Methods:
- Generation of polyclonal antibodies against bovine milk LPL.
- Affinity purification of antibodies using bovine LPL columns.
- Development of a solid-phase ELISA for rat LPL detection.
- Validation using immunoprecipitation and enzyme inhibition assays.
Main Results:
- The generated antibodies were specific for LPL.
- The ELISA demonstrated sensitivity ranging from 1.0 to 20 ng/ml of LPL.
- Assay results paralleled LPL enzyme activity.
- Denatured and undenatured rat LPL samples yielded comparable mass quantitation.
Conclusions:
- A highly specific and sensitive ELISA for rat LPL mass has been successfully developed.
- This assay enables effective quantitation of LPL across various rat tissue types.
- The assay's ability to measure denatured LPL enhances its utility in diverse research applications.