Schiller, Christian; Nitschké, Maximilian J. E.; Seidl, Alexander; Kremmer, Elisabeth; Weiss, Elisabeth H.
Rat Monoclonal Antibodies Specific for LST1 Proteins.
In: Hybridoma, Vol. 28, No. 4
The LST1 gene is located in the human MHC class III region and encodes transmembrane and soluble isoforms
that have been suggested to play a role in the regulation of the immune response and are associated with
inflammatory diseases such as rheumatoid arthritis. Here we describe the generation and characterization of the
first monoclonal antibodies against LST1. Two hybridoma lines secreting monoclonal antibodies designated 7E2
and 8D12 were established. The 7E2 antibody detects recombinant and endogenous LST1 by Western blot
analysis while 8D12 reacts with recombinant and endogenous LST1 in immunoprecipitation and flow cytometry
procedures. The newly established antibodies were used to survey LST1 protein expression in human cell lines,
which was found to be tightly regulated, allowing the expression of transmembrane isoforms but suppressing