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Rat monoclonal antibodies specific for LST1 proteins
Christian Schiller1, Maximilian J E Nitschké, Alexander Seidl
1Department of Biology II, Ludwig-Maximilians-Universität München, Germany.
Hybridoma (2005)
|August 12, 2009
Summary
Researchers developed novel monoclonal antibodies targeting the LST1 gene, crucial in immune response and inflammatory diseases. These antibodies enabled the study of LST1 protein expression, revealing tightly regulated isoform expression in human cells.
Area of Science:
- Immunology
- Molecular Biology
- Genetics
Background:
- The LST1 gene, located in the human MHC class III region, encodes transmembrane and soluble protein isoforms.
- LST1 is implicated in immune response regulation and associated with inflammatory diseases like rheumatoid arthritis.
Purpose of the Study:
- To generate and characterize the first monoclonal antibodies against LST1.
- To investigate LST1 protein expression in human cell lines using these novel antibodies.
Main Methods:
- Generation of hybridoma lines secreting monoclonal antibodies (7E2 and 8D12).
- Western blot analysis for antibody detection of recombinant and endogenous LST1 (7E2).
- Immunoprecipitation and flow cytometry for antibody detection of recombinant and endogenous LST1 (8D12).
Main Results:
- Two monoclonal antibodies, 7E2 and 8D12, were successfully established.
- Both antibodies demonstrated reactivity with recombinant and endogenous LST1.
- Survey of human cell lines revealed tightly regulated LST1 protein expression, favoring transmembrane over soluble isoforms.
Conclusions:
- Novel monoclonal antibodies provide essential tools for LST1 research.
- LST1 protein expression is tightly controlled, with differential regulation of its isoforms.
- Further research into LST1's role in immune regulation and inflammatory diseases is warranted.
