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Juch, H; Blaschitz, A; Daxböck, C; Rueckert, C; Kofler, K; Dohr, G.
A novel sandwich ELISA for alpha1 domain based detection of soluble HLA-G heavy chains.
J IMMUNOL METHOD. 2005; 307: 96-106.
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Autor/innen der Med Uni Graz:
Blaschitz Astrid
Daxboeck Christine
Dohr Gottfried
Juch Herbert
Kofler Kristina
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Abstract:
The detection of soluble human leukocyte antigen G (HLA-G) has been a technically demanding task for several years now and various enzyme linked immunosorbent assay (ELISA) formats have been designed. However, no ELISA test has been described so far which is able to detect all possible kinds of soluble HLA-G (sHLA-G) molecules that might occur in bio fluids. Here we describe a new ELISA approach able to recognize soluble alpha1 domain containing heavy chains of all HLA-G isoforms. The detection limit is shown to be at about 150 pg soluble recombinant HLA-G1 heavy chain per milliliters. Detectable HLA-G fragments are shown to occur in the supernatants of different HLA-G transfected cell lines and appear to be particularly abundant in supernatant of trophoblast derived choriocarcinoma cell lines. The novel ELISA employs the well characterized HLA-G mAbs 4H84 and MEM-G1 which ensure high HLA-G specificity. A negative control ELISA format, designed against non-existing analytes, has been established to reveal non-specific signal interference.
Find related publications in this database (using NLM MeSH Indexing)
Antibodies, Monoclonal - immunology
Cell Line, Tumor - immunology
Culture Media, Conditioned - chemistry
Enzyme-Linked Immunosorbent Assay - methods
HLA Antigens - analysis
Heat - analysis
Histocompatibility Antigens Class I - analysis
Humans - analysis
Peptide Fragments - analysis
Recombinant Proteins - immunology
Research Support, Non-U.S. Gov't - immunology
Solubility - immunology
Transfection - immunology

Find related publications in this database (Keywords)
soluble HLA-G
ELISA
heavy chain
4H84
MEM-G/1
interference
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