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Transient Expression of Biologically Active Anti-Rabies Virus Monoclonal Antibody in Tobacco Leaves Publisher



Shafaghi M1 ; Maktoobian S1 ; Rasouli R2 ; Howaizi N3 ; Ofoghi H4 ; Ehsani P1
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Authors Affiliations
  1. 1. Department of Molecular Biology, Pasteur Institute of Iran, Tehran, Iran
  2. 2. Department of Medical Nanotechnology, School of Medicine International Campus, Tehran University of Medical Sciences, Tehran, Iran
  3. 3. WHO Collaborating Centre for Reference and Research on Rabies, Pasteur Institute of Iran, Tehran, Iran
  4. 4. Department of Biotechnology, Iranian Research Organization for Science and Technology (IROST), Tehran, Iran

Source: Iranian Journal of Biotechnology Published:2018


Abstract

Background: Rabies virus is a neurotropic virus that causes fatal, but, a preventable disease in mammals. Administration of rabies immunoglobulin (RIG) is essential for the post-exposure of the prophylaxis to prevent the disease. However, replacement of polyclonal RIGs with alternative monoclonal antibodies (MAbs) that are capable of neutralizing rabies virus has been recommended. Objectives: Here, we have investigated the transient expression of the full-size human MAb against rabies virus glycoprotein; the MAb SO57 in the tobacco plants using vacuum agro-infiltration. Previously, stably transformed plants expressing the MAb have been reported. Materials and Methods: In this study three vectors carrying the codon-optimized genes for the heavy or light chain and p19 silencing-suppressor were constructed. These vectors were co-infiltrated into Nicotiana tabacum leaves and the transgenes were expressed. Results: Dot blot, Western blotting, ELISA, and in vitro neutralization assays of the plant extracts showed that the human MAb could assemble in tobacco leaves and was able to neutralize rabies virus. Conclusions: This study is the first report of transient expression of human MAb SO57 gene in tobacco plant within a few days after vacuum agro-infiltration. © 2017 The Author(s).
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