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Monoclonal antibody against human bone alkaline phosphatase
K Masuhara1, R Yoshikawa, K Takaoka
1Department of Orthopaedic Surgery, Osaka University Medical School, Japan.
International Orthopaedics
|January 1, 1991
Summary
Researchers developed a selective monoclonal antibody targeting human bone alkaline phosphatase (AP). This antibody shows higher binding to bone AP than liver AP, aiding in disease diagnosis.
Area of Science:
- Biochemistry
- Immunology
- Oncology
Background:
- Alkaline phosphatase (AP) exists in several isoenzyme forms.
- Bone-specific AP is a key biomarker for bone metabolism and diseases.
Purpose of the Study:
- To develop a monoclonal antibody with high selectivity for human bone alkaline phosphatase (AP).
- To evaluate the antibody's potential for sensitive and specific detection of bone AP.
Main Methods:
- Immunization using human osteosarcoma bone AP.
- Characterization of antibody binding affinity to bone and liver AP isoenzymes.
- Validation using mixtures of AP isoenzymes and patient sera.
Main Results:
- A monoclonal antibody exhibiting preferential binding to human bone AP was successfully developed.
- The most selective antibody demonstrated approximately 3.5-fold greater binding to bone AP compared to liver AP.
- The antibody's selectivity was confirmed in isoenzyme mixtures and in sera from patients with bone or liver diseases.
Conclusions:
- A highly selective monoclonal antibody for human bone AP has been generated.
- This antibody holds promise for developing sensitive diagnostic tools for bone-related conditions.
- Further development could lead to a highly specific immunoassay for quantitative bone AP analysis.