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Genetic immunization with LYVE-1 cDNA yields function-blocking antibodies against native protein
Adela R Cardones1, Wolfgang W Leitner, Lei Fang
1Dermatology, National Cancer Institute, National Institutes of Health, 10 Center Drive, Room 12N258, Bethesda, MD 20892, USA.
Microvascular Research
|November 1, 2005
Summary
Researchers developed a novel method using gene gun technology to produce specific antibodies against the LYVE-1 receptor. These antibodies effectively recognize LYVE-1 on lymphatic endothelial cells and block hyaluronic acid binding.
Area of Science:
- Immunology
- Cell Biology
- Biotechnology
Background:
- Lymphatic endothelial cells (LEC) express LYVE-1, a receptor for hyaluronic acid (HA).
- Specific antibodies are needed to study LYVE-1 function and its role in lymphatic biology.
Purpose of the Study:
- To generate specific antisera against human LYVE-1.
- To validate the functionality of these antibodies in recognizing native LYVE-1 and its role in HA binding.
Main Methods:
- Gene gun delivery of full-length human LYVE-1 cDNA into mouse skin.
- Production and characterization of LYVE-1 antisera.
- Flow cytometry, immunohistochemistry, and functional assays (HA binding inhibition).
Main Results:
- Gene gun delivery successfully produced LYVE-1-specific antisera.
- Antibodies recognized LYVE-1 on transfected cells and selectively stained lymphatic vessels in human tissues.
- Antisera blocked HA binding to LYVE-1-expressing cells, confirming functional recognition.
Conclusions:
- Gene gun-assisted cDNA delivery is an effective method for generating specific and functional antibodies against LYVE-1.
- The generated antisera can be used to identify lymphatic endothelial cells and study LYVE-1-mediated HA binding.