Хайдуков Сергей Валерьевич

Доктор биологических наук

Старший научный сотрудник (Отдел «Научно-инновационный центр Технопарк»), Старший научный сотрудник (Центр коллективного пользования ИБХ)

Тел.: +7 (495) 336-63-88

Эл. почта: khsv@mail.ibch.ru

Избранные публикации

  1. Mamedov I.Z., Britanova O.V., Chkalina A.V., Staroverov D.B., Amosova A.L., Mishin A.S., Kurnikova M.A., Zvyagin I.V., Mutovina Z.Y., Gordeev A.V., Khaidukov S.V., Sharonov G.V., Shagin D.A., Chudakov D.M., Lebedev Y.B. (2009). Individual characterization of stably expanded T cell clones in ankylosing spondylitis patients. Autoimmunity 42 (6), 525–36 [+]

    Ankylosing spondylitis (AS) is commonly characterized by clonal expansions of T cells. However, these clonal populations are poorly studied and their role in disease initiation and progression remains unclear. Here, we performed mass sequencing of TCR V beta libraries to search for the expanded T cell clones for two AS patients. A number of clones comprising more than 5% of the corresponding TCR V beta family were identified in both patients. For the first time, expanded clones were shown to be stably abundant in blood samples of AS patients for the prolonged period (1.5 and 2.5 years for two patients, correspondingly). These clones were individually characterized in respect to their differentiation status using fluorescent cell sorting with CD27, CD28, and CD45RA markers followed by quantitative identification of each clone within corresponding fraction using real time PCR analysis. Stable clones differed in phenotype and several were shown to belong to the proinflammatory CD27 - /CD28 - population. Their potentially cytotoxic status was confirmed by staining with perforin-specific antibodies. Search for the TCR V beta CRD3 sequences homologous to the identified clones revealed close matches with the previously reported T cell clones from AS and reactive arthritis patients, thus supporting their role in the disease and proposing consensus TCR V beta CDR3 motifs for AS. Interestingly, these motifs were also found to have homology with earlier reported virus-specific CDR3 variants, indicating that viral infections could play role in development of AS.

  2. Ponomarenko N.A., Vorobiev I.I., Alexandrova E.S., Reshetnyak A.V., Telegin G.B., Khaidukov S.V., Avalle B., Karavanov A., Morse H.C. 3rd, Thomas D., Friboulet A., Gabibov A.G. (2006). Induction of a protein-targeted catalytic response in autoimmune prone mice: antibody-mediated cleavage of HIV-1 glycoprotein GP120. Biochemistry 45 (1), 324–30 [+]

    We have induced a polyclonal IgG that degrades the HIV-1 surface antigen, glycoprotein gp120, by taking advantage of the susceptibility of SJL mice to a peptide-induced autoimmune disorder, experimental autoimmune encephalomyelitis (EAE). Specific pathogen-free SJL mice were immunized with structural fragments of gp120, fused in-frame with encephalitogenic peptide MBP(85-101). It has resulted in a pronounced disease-associated immune response against antigens. A dramatic increase of gp120 degradation level by purified polyclonal IgG from immunized versus nonimmunized mice has been demonstrated by a newly developed fluorescence-based assay. This activity was inhibited by anti-mouse immunoglobulin antibodies as well as by Ser- and His-reactive covalent inhibitors. A dominant proteolysis site in recombinant gp120 incubated with purified polyclonal IgG from immunized mice was shown by SDS-PAGE. The SELDI-based mass spectrometry revealed that these antibodies exhibited significant specificity toward the Pro484-Leu485 peptide bond. The sequence surrounding this site is present in nearly half of the HIV-I variants. This novel strategy can be generalized for creating a catalytic vaccine against viral pathogens.

  3. Рапопорт Е.М., Некрасов М.В., Хайдуков С.В., Свирщевская Е.В., Жигис Л.С., Козлов Л.В., Баталова Т.Н., Зубов В.П., Бовин Н.В. (2000). Изучение клеточной локализации галактозосвязывающего лектина из сыворотки крови человека. Биохимия 65 (11), 1558–1563 ID:207