Переверзев Антон Петрович


Аспирант (Лаборатория биофотоники)

Эл. почта: anton.pereverzev@gmail.com

Избранные публикации

  1. Gurskaya N.G., Pereverzev A.P., Staroverov D.B., Markina N.M., Lukyanov K.A. (2016). Analysis of Nonsense-Mediated mRNA Decay at the Single-Cell Level Using Two Fluorescent Proteins. Meth. Enzymol. 572, 291–314 [+]

    Nonsense-mediated mRNA decay (NMD) is an evolutionarily conserved mechanism of specific degradation of transcripts with a premature stop codon. NMD eliminates aberrant mRNAs arising from mutations, alternative splicing, and other events in cells. In addition, many normal transcripts undergo NMD. Recent studies demonstrated that NMD activity is specifically regulated and that NMD can play a role of global regulator of gene expression. Recently, we developed dual-color fluorescent protein-based reporters for quantification of NMD activity using fluorescence microscopy and flow cytometry (Pereverzev, Gurskaya, et al., 2015). Due to ratiometric fluorescence response, these reporters make it possible to assess NMD activity in live cells at the single-cell level and to reveal otherwise hidden heterogeneity of cells in respect of NMD activity. Here we provide a detailed description of applications of the NMD reporters in mammalian cell lines.

    ID:1528
  2. Pereverzev A.P., Matlashov M.E., Staroverov D.B., Lukyanov K.A., Gurskaya N.G. (2015). Differences of Nonsense-Mediated mRNA Degradation Activity in Mammalian Cell Lines Revealed by a Fluorescence Reporter. Bioorg. Khim. 41 (5), 587–91 [+]

    Activity of nonsense-mediated mRNA degradation (NMD) was studied in several mammalian cell cultures using recently developed genetically encoded fluorescence sensor [Pereverzev et al., Sci. Rep., 2015, vol. 5, p. 7729]. This NMD reporter enables measurement of NMD activity in single live cells using ratio of green and red fluorescent proteins signals. The following cell lines were analyzed: mouse colon carcinoma CT26, mouse Lewis lung carcinoma LLC, human T-cell leukemia Jurkat, and spontaneously immortalized human keratinocytes HaCaT. These cell lines demonstrated very different NMD activities. In CT26, NMD activity was low, whereas in LLC it was high (8.5-fold higher than in CT26). Jurkat and HaCaT cells possessed strong heterogeneity and consisted of two cell subpopulations with high and low NMD activities. In addition, we detected high NMD activity in primary culture of mouse embryonic hippocampal neurons.

    ID:1416
  3. Pereverzev A.P., Gurskaya N.G., Ermakova G.V., Kudryavtseva E.I., Markina N.M., Kotlobay A.A., Lukyanov S.A., Zaraisky A.G., Lukyanov K.A. (2015). Method for quantitative analysis of nonsense-mediated mRNA decay at the single cell level. Sci Rep 5, 7729 [+]

    Nonsense-mediated mRNA decay (NMD) is a ubiquitous mechanism of degradation of transcripts with a premature termination codon. NMD eliminates aberrant mRNA species derived from sources of genetic variation such as gene mutations, alternative splicing and DNA rearrangements in immune cells. In addition, recent data suggest that NMD is an important mechanism of global gene expression regulation. Here, we describe new reporters to quantify NMD activity at the single cell level using fluorescent proteins of two colors: green TagGFP2 and far-red Katushka. TagGFP2 was encoded by mRNA targeted to either the splicing-dependent or the long 3'UTR-dependent NMD pathway. Katushka was used as an expression level control. Comparison of the fluorescence intensities of cells expressing these reporters and cells expressing TagGFP2 and Katushka from corresponding control NMD-independent vectors allowed for the assessment of NMD activity at the single cell level using fluorescence microscopy and flow cytometry. The proposed reporter system was successfully tested in several mammalian cell lines and in transgenic Xenopus embryos.

    ID:1247