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Mamedov AE, Filimonova IN, Smirnov IV, Belogurov AA. Peculiarities of the Presentation of the Encephalitogenic MBP Peptide by HLA-DR Complexes Providing Protection and Predisposition to Multiple Sclerosis. Acta Naturae 2021; 13:127-133. [PMID: 33959392 PMCID: PMC8084299 DOI: 10.32607/actanaturae.11008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Accepted: 08/05/2020] [Indexed: 12/02/2022] Open
Abstract
Predisposition to multiple sclerosis (MS), a chronic autoimmune disease of the central nervous system, is due to various factors. The genetic component is considered one of the most important factors. HLA class II genes contribute the most to the development of MS. The HLA-DRB1*15 allele group is considered one of the main genetic risk factors predisposing to MS. The group of HLA-DRB1*01 alleles was shown to have a protective effect against this disease in the Russian population. In this work, we compared the binding of the encephalitogenic fragment of the myelin basic protein (MBP) to two HLA-DR complexes that provide protection against and predisposition to MS: HLA-DR1 (HLA-DRB1*0101) and HLA-DR15 (HLA-DRB1*1501), respectively. We found that the myelin peptide MBP88-100 binds to HLA-DR1 at a rate almost an order of magnitude lower than the viral peptide of hemagglutinin (HA). The same was true for the binding of MBP85-97 to HLA-DR15 in comparison with viral pp65. The structure of the C-terminal part of the peptide plays a key role in the binding to HLA-DR1 for equally high-affinity N-terminal regions of the peptides. The IC50 of the myelin peptide MBP88-100 competing with viral HA for binding to HLA-DR1 is almost an order of magnitude higher than that of HA. As for HA, the same was also true for the binding of MBP85-97 to HLA-DR15 in comparison with viral pp65. Thus, autoantigenic MBP cannot compete with the viral peptide for binding to protective HLA-DR1. However, it is more competitive than viral peptide for HLA-DR15.
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Affiliation(s)
- A. E. Mamedov
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry Russian Academy of Sciences, Moscow, 117997 Russia
| | - I. N. Filimonova
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry Russian Academy of Sciences, Moscow, 117997 Russia
| | - I. V. Smirnov
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry Russian Academy of Sciences, Moscow, 117997 Russia
- Institute of Fundamental Medicine and Biology, Kazan (Volga) Federal University, Kazan, 420008 Russia
| | - A. A. Belogurov
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry Russian Academy of Sciences, Moscow, 117997 Russia
- Lomonosov Moscow State University, Moscow, 119991 Russia
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Ishina IA, Filimonova IN, Zakharova MY, Ovchinnikova LA, Mamedov AE, Lomakin YA, Belogurov AA. Exhaustive Search of the Receptor Ligands by the CyCLOPS (Cytometry Cell-Labeling Operable Phage Screening) Technique. Int J Mol Sci 2020; 21:ijms21176258. [PMID: 32872428 PMCID: PMC7504098 DOI: 10.3390/ijms21176258] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Revised: 08/25/2020] [Accepted: 08/27/2020] [Indexed: 01/01/2023] Open
Abstract
Effective and versatile screening of the peptide ligands capable of selectively binding to diverse receptors is in high demand for the state-of-the-art technologies in life sciences, including probing of specificity of the cell surface receptors and drug development. Complex microenvironment and structure of the surface receptors significantly reduce the possibility to determine their specificity, especially when in vitro conditions are utilized. Previously, we designed a publicly available platform for the ultra-high-throughput screening (uHTS) of the specificity of surface-exposed receptors of the living eukaryotic cells, which was done by consolidating the phage display and flow cytometry techniques. Here, we significantly improved this methodology and designed the fADL-1e-based phage vectors that do not require a helper hyperphage for the virion assembly. The enhanced screening procedure was tested on soluble human leukocyte antigen (HLA) class II molecules and transgenic antigen-specific B cells that express recombinant lymphoid B-cell receptor (BCR). Our data suggest that the improved vector system may be successfully used for the comprehensive search of the receptor ligands in either cell-based or surface-immobilized assays.
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Affiliation(s)
- Irina A. Ishina
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry RAS, 117997 Moscow, Russia; (I.A.I.); (I.N.F.); (M.Y.Z.); (L.A.O.); (A.E.M.)
| | - Ioanna N. Filimonova
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry RAS, 117997 Moscow, Russia; (I.A.I.); (I.N.F.); (M.Y.Z.); (L.A.O.); (A.E.M.)
| | - Maria Y. Zakharova
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry RAS, 117997 Moscow, Russia; (I.A.I.); (I.N.F.); (M.Y.Z.); (L.A.O.); (A.E.M.)
- Pirogov Russian National Research Medical University, 117997 Moscow, Russia
| | - Leyla A. Ovchinnikova
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry RAS, 117997 Moscow, Russia; (I.A.I.); (I.N.F.); (M.Y.Z.); (L.A.O.); (A.E.M.)
| | - Azad E. Mamedov
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry RAS, 117997 Moscow, Russia; (I.A.I.); (I.N.F.); (M.Y.Z.); (L.A.O.); (A.E.M.)
| | - Yakov A. Lomakin
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry RAS, 117997 Moscow, Russia; (I.A.I.); (I.N.F.); (M.Y.Z.); (L.A.O.); (A.E.M.)
- Correspondence: (Y.A.L.); (A.A.B.J.)
| | - Alexey A. Belogurov
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry RAS, 117997 Moscow, Russia; (I.A.I.); (I.N.F.); (M.Y.Z.); (L.A.O.); (A.E.M.)
- Lomonosov Moscow State University, 119991 Moscow, Russia
- Correspondence: (Y.A.L.); (A.A.B.J.)
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Mamedov A, Vorobyeva N, Filimonova I, Zakharova M, Kiselev I, Bashinskaya V, Baulina N, Boyko A, Favorov A, Kulakova O, Ziganshin R, Smirnov I, Poroshina A, Shilovskiy I, Khaitov M, Sykulev Y, Favorova O, Vlassov V, Gabibov A, Belogurov A. Protective Allele for Multiple Sclerosis HLA-DRB1*01:01 Provides Kinetic Discrimination of Myelin and Exogenous Antigenic Peptides. Front Immunol 2020; 10:3088. [PMID: 32010139 PMCID: PMC6978714 DOI: 10.3389/fimmu.2019.03088] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2018] [Accepted: 12/17/2019] [Indexed: 12/15/2022] Open
Abstract
Risk of the development of multiple sclerosis (MS) is known to be increased in individuals bearing distinct class II human leukocyte antigen (HLA) variants, whereas some of them may have a protective effect. Here we analyzed distribution of a highly polymorphous HLA-DRB1 locus in more than one thousand relapsing-remitting MS patients and healthy individuals of Russian ethnicity. Carriage of HLA-DRB1*15 and HLA-DRB1*03 alleles was associated with MS risk, whereas carriage of HLA-DRB1*01 and HLA-DRB1*11 was found to be protective. Analysis of genotypes revealed the compensatory effect of risk and resistance alleles in trans. We have identified previously unknown MBP153-161 peptide located at the C-terminus of MBP protein and MBP90-98 peptide that bound to recombinant HLA-DRB1*01:01 protein with affinity comparable to that of classical antigenic peptide 306-318 from the hemagglutinin (HA) of the influenza virus demonstrating the ability of HLA-DRB1*01:01 to present newly identified MBP153-161 and MBP90-98 peptides. Measurements of kinetic parameters of MBP and HA peptides binding to HLA-DRB1*01:01 catalyzed by HLA-DM revealed a significantly lower rate of CLIP exchange for MBP153-161 and MBP90-98 peptides as opposed to HA peptide. Analysis of the binding of chimeric MBP-HA peptides demonstrated that the observed difference between MBP153-161, MBP90-98, and HA peptide epitopes is caused by the lack of anchor residues in the C-terminal part of the MBP peptides resulting in a moderate occupation of P6/7 and P9 pockets of HLA-DRB1*01:01 by MBP153-161 and MBP90-98 peptides in contrast to HA308-316 peptide. This leads to the P1 and P4 docking failure and rapid peptide dissociation and release of empty HLA-DM-HLA-DR complex. We would like to propose that protective properties of the HLA-DRB1*01 allele could be directly linked to the ability of HLA-DRB1*01:01 to kinetically discriminate between antigenic exogenous peptides and endogenous MBP derived peptides.
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Affiliation(s)
- Azad Mamedov
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, Russia
| | | | - Ioanna Filimonova
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, Russia
| | - Maria Zakharova
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, Russia.,Pirogov Russian National Research Medical University, Moscow, Russia
| | - Ivan Kiselev
- Pirogov Russian National Research Medical University, Moscow, Russia
| | | | - Natalia Baulina
- Pirogov Russian National Research Medical University, Moscow, Russia
| | - Alexey Boyko
- Pirogov Russian National Research Medical University, Moscow, Russia.,Neuroimmunological Department of the Federal Center of Cerebrovascular Diseases and Stroke, Moscow, Russia
| | - Alexander Favorov
- Sidney Kimmel Comprehensive Cancer Center, The Johns Hopkins University, Baltimore, MD, United States.,Vavilov Institute of General Genetics, Russian Academy of Sciences, Moscow, Russia
| | - Olga Kulakova
- Pirogov Russian National Research Medical University, Moscow, Russia
| | - Rustam Ziganshin
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, Russia
| | - Ivan Smirnov
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, Russia.,Institute of Fundamental Medicine and Biology, Kazan (Volga) Federal University, Kazan, Russia
| | - Alina Poroshina
- National Research Center Institute of Immunology FMBA of Russia, Moscow, Russia
| | - Igor Shilovskiy
- National Research Center Institute of Immunology FMBA of Russia, Moscow, Russia
| | - Musa Khaitov
- National Research Center Institute of Immunology FMBA of Russia, Moscow, Russia
| | - Yuri Sykulev
- Department of Microbiology, Thomas Jefferson University, Philadelphia, PA, United States
| | - Olga Favorova
- Pirogov Russian National Research Medical University, Moscow, Russia
| | - Valentin Vlassov
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch of Russian Academy of Sciences, Novosibirsk, Russia
| | - Alexander Gabibov
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, Russia.,Department of Fundamental Medicine, Lomonosov Moscow State University, Moscow, Russia
| | - Alexey Belogurov
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, Russia.,Department of Fundamental Medicine, Lomonosov Moscow State University, Moscow, Russia
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