Abstract
Viruses manipulate the central machineries of host cells to their advantage. They prevent host cell antiviral responses to create a favorable environment for their survival and propagation. Measles virus (MV) encodes two nonstructural proteins MV-V and MV-C known to counteract the host interferon response and to regulate cell death pathways. Several molecular mechanisms underlining MV-V regulation of innate immunity and cell death pathways have been proposed, whereas MV-C host-interacting proteins are less studied. We suggest that some cellular factors that are controlled by MV-C protein during viral replication could be components of innate immunity and the cell death pathways. To determine which host factors are targeted by MV-C, we captured both direct and indirect host-interacting proteins of MV-C protein. For this, we used a strategy based on recombinant viruses expressing tagged viral proteins followed by affinity purification and a bottom-up mass spectrometry analysis. From the list of host proteins specifically interacting with MV-C protein in different cell lines, we selected the host targets that belong to immunity and cell death pathways for further validation. Direct protein interaction partners of MV-C were determined by applying protein complementation assay and the bioluminescence resonance energy transfer approach. As a result, we found that MV-C protein specifically interacts with p65–iASPP protein complex that controls both cell death and innate immunity pathways and evaluated the significance of these host factors on virus replication.
Original language | English (US) |
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Article number | 100049 |
Journal | Molecular and Cellular Proteomics |
Volume | 20 |
DOIs | |
State | Published - 2021 |
Funding
Acknowledgments—We thank Dr Kaoru Takeuchi and Dr Chantal Rabourdin-Combe for anti-C rAb polyclonal antibody and anti-N monoclonal antibody, respectively. We thank Dr.Hervé Bourhy from Lyssavirus Epidemiology and Neuropathology Laboratory of Institut Pasteur for providing us pYFP-p65 plasmid that contains EYFP reporter gene fused to p65. We thank all members of the Viral Genomics and Vaccination Unit and Laboratory of Molecular Genetics of RNA Viruses for their critical discussion, Dr Atousa Arbabian for technical support with experiments, Dr Dmitry Trubetskoy for the help with data representation, and Dr Aleksandr Barinov and Dr Caroline Demeret for critical reading. This work was supported by ANR 16 CE18 0016 01 Tangy ONCOMEVAX, the Institut Pasteur, and CNRS. We thank Dr Kaoru Takeuchi and Dr Chantal Rabourdin-Combe for anti-C rAb polyclonal antibody and anti-N monoclonal antibody, respectively. We thank Dr.Hervé Bourhy from Lyssavirus Epidemiology and Neuropathology Laboratory of Institut Pasteur for providing us pYFP-p65 plasmid that contains EYFP reporter gene fused to p65. We thank all members of the Viral Genomics and Vaccination Unit and Laboratory of Molecular Genetics of RNA Viruses for their critical discussion, Dr Atousa Arbabian for technical support with experiments, Dr Dmitry Trubetskoy for the help with data representation, and Dr Aleksandr Barinov and Dr Caroline Demeret for critical reading. This work was supported by ANR 16 CE18 0016 01 Tangy ONCOMEVAX, the Institut Pasteur, and CNRS. This work was supported by National Research Agency (ANR 16 CE18 0016 01 Tangy ONCOMEVAX), the Institut Pasteur, and the French National Centre for Scientific Research (CNRS). A. M., PhD, was supported by Région ile de France (IDF DIM 2016) and Institut Pasteur Calmette and Yersin 2019 grant. Funding and additional information—This work was supported by National Research Agency (ANR 16 CE18 0016 01 Tangy ONCOMEVAX), the Institut Pasteur, and the French National Centre for Scientific Research (CNRS). A. M., PhD, was supported by Région ile de France (IDF DIM 2016) and Institut Pasteur Calmette and Yersin 2019 grant.
Keywords
- Measles virus (MV) is a member of the genus Morbillivirus of the family Paramyxoviridae. This enveloped virus with a
ASJC Scopus subject areas
- Analytical Chemistry
- Biochemistry
- Molecular Biology