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Rozbeský D, Krejzová J, Křenek K, Prchal J, Hrabal R, Kožíšek M, Weignerová L, Fiore M, Dumy P, Křen V, Renaudet O. Re-evaluation of binding properties of recombinant lymphocyte receptors NKR-P1A and CD69 to chemically synthesized glycans and peptides. Int J Mol Sci 2014; 15:1271-83. [PMID: 24445261 PMCID: PMC3907868 DOI: 10.3390/ijms15011271] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2013] [Revised: 12/19/2013] [Accepted: 01/03/2014] [Indexed: 01/20/2023] Open
Abstract
The binding of monosaccharides and short peptides to lymphocyte receptors (human CD69 and rat NKR-P1A) was first reported in 1994 and then in a number of subsequent publications. Based on this observation, numerous potentially high-affinity saccharide ligands have been synthesized over the last two decades in order to utilize their potential in antitumor therapy. Due to significant inconsistencies in their reported binding properties, we decided to re-examine the interaction between multiple ligands and CD69 or NKR-P1A. Using NMR titration and isothermal titration calorimetry we were unable to detect the binding of the tested ligands such as N-acetyl-d-hexosamines and oligopeptides to both receptors, which contradicts the previous observations published in more than twenty papers over the last fifteen years.
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Affiliation(s)
- Daniel Rozbeský
- Institute of Microbiology, Academy of Sciences of the Czech Republic, Vídeňská 1083, Prague 4 CZ14220, Czech Republic.
| | - Jana Krejzová
- Institute of Microbiology, Academy of Sciences of the Czech Republic, Vídeňská 1083, Prague 4 CZ14220, Czech Republic.
| | - Karel Křenek
- Institute of Microbiology, Academy of Sciences of the Czech Republic, Vídeňská 1083, Prague 4 CZ14220, Czech Republic.
| | - Jan Prchal
- Institute of Microbiology, Academy of Sciences of the Czech Republic, Vídeňská 1083, Prague 4 CZ14220, Czech Republic.
| | - Richard Hrabal
- Institute of Microbiology, Academy of Sciences of the Czech Republic, Vídeňská 1083, Prague 4 CZ14220, Czech Republic.
| | - Milan Kožíšek
- Institute of Microbiology, Academy of Sciences of the Czech Republic, Vídeňská 1083, Prague 4 CZ14220, Czech Republic.
| | - Lenka Weignerová
- Institute of Microbiology, Academy of Sciences of the Czech Republic, Vídeňská 1083, Prague 4 CZ14220, Czech Republic.
| | - Michele Fiore
- Institute of Microbiology, Academy of Sciences of the Czech Republic, Vídeňská 1083, Prague 4 CZ14220, Czech Republic.
| | - Pascal Dumy
- Institute of Microbiology, Academy of Sciences of the Czech Republic, Vídeňská 1083, Prague 4 CZ14220, Czech Republic.
| | - Vladimír Křen
- Institute of Microbiology, Academy of Sciences of the Czech Republic, Vídeňská 1083, Prague 4 CZ14220, Czech Republic.
| | - Olivier Renaudet
- Institute of Microbiology, Academy of Sciences of the Czech Republic, Vídeňská 1083, Prague 4 CZ14220, Czech Republic. ^
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