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Published on: July 12, 2018
A monoclonal antibody against GPNMB
Ping Zhang1, Jie Li, Xiaowen Pang
1Department of Dermatology, The General Hospital of the Air Force, Beijing, China.
Monoclonal Antibodies in Immunodiagnosis and Immunotherapy
|August 6, 2013
Summary
Researchers developed high-affinity monoclonal antibodies targeting GPNMB, a protein crucial in cells and tumors. These antibodies, G203 and F105, are valuable tools for investigating GPNMB
Area of Science:
- Biochemistry
- Immunology
- Oncology
Background:
- GPNMB (Glycoprotein Nonmetastatic Melanoma Protein B) is a transmembrane glycoprotein.
- GPNMB is associated with melanosomes and plays roles in various cell types and tumors.
- Developing specific antibodies against GPNMB is essential for functional studies.
Purpose of the Study:
- To generate and characterize high-specificity and high-affinity monoclonal antibodies against human GPNMB.
- To provide reliable tools for further research into GPNMB protein function.
Main Methods:
- Immunization of BALB/c mice with purified GST-GPNMB.
- Screening and characterization of monoclonal antibodies using techniques like Western blot and immunohistochemistry.
- Affinity determination of antibody-antigen interactions.
Main Results:
- Three monoclonal antibodies against GPNMB were successfully produced.
- Antibodies G203 and F105 demonstrated high affinity for GPNMB (Kd values ~2.7 × 10⁻⁸ M and ~1.6 × 10⁻⁸ M, respectively).
- Western blot and immunohistochemistry confirmed antibody binding to human GPNMB.
Conclusions:
- The generated monoclonal antibodies, particularly G203 and F105, are specific and possess high affinity for GPNMB.
- These antibodies serve as effective tools for the functional characterization of GPNMB in biological and pathological contexts.
