Logo-bi
BioImpacts. 2022;12(3): 203-210.
doi: 10.34172/bi.2021.23219
PMID: 35677669
PMCID: PMC9124873
Scopus ID: 85132073917
  Abstract View: 608
  PDF Download: 315
  Full Text View: 39

Original Research

Expression of functional eGFP-fused antigen-binding fragment of ranibizumab in Pichia pastoris

Shirin Movaghar Asareh 1 ORCID logo, Tahereh Savei 1 ORCID logo, Sareh Arjmand 1* ORCID logo, Seyed Omid Ranaei Siadat 1* ORCID logo, Fataneh Fatemi 1, Mehrab Pourmadadi 1, Javad Shabani Shayeh 1

1 Protein Research Center, Shahid Beheshti University, Tehran, Iran
*Corresponding Authors: Corresponding authors: Seyed Omid Ranaei Siadat, Email o_ranaei@sbu.ac.ir; Sareh Arjmand, Email s_arjmand@sbu.ac.ir, Email: s_arjmand@sbu.ac.ir; Email: o_ranaei@sbu.ac.ir

Abstract

Introduction: Ranibizumab is a mouse monoclonal antibody fragment antigen-binding (Fab) against human vascular endothelial growth factor-A (VEGF-A), inhibiting angiogenesis. This antibody is commercially produced in Escherichia coli host and used to treat wet age-related macular degeneration (AMD).Methods: In this study, the heavy and light chains of ranibizumab were expressed in Pichia pastoris. The expressed chains were incubated overnight at 4°C for interaction. The formation of an active structure was evaluated based on the interaction with substrate VEGF-A using an indirect ELISA, and an electrochemical setup. Furthermore, reconstruction of split enhanced green fluorescent protein (eGFP) reporter, chimerized at the C-terminus of the heavy and light chains, was used to characterize chains’ interaction.
Results: P. pastoris efficiently expressed designed constructs and secreted them into the culture medium. The anti-Fab antibody detected the constructed Fab structure in western blot analysis. Reconstruction of the split reporter confirmed the interaction between heavy and light chains. The designed ELISA and electrochemical setup results verified the binding activity of the recombinant Fab structure against VEGF-A.
Conclusion: In this work, we indicated that the heavy and light chains of ranibizumab Fab fragments (with or without linkage to split parts of eGFP protein) were produced in P. pastoris. The fluorescence of reconstructed eGFP was detected after incubating the equal ratio of chimeric-heavy and light chains. Immunoassay and electrochemical tests verified the bioactivity of constructed Fab. The data suggested that P. pastoris could be considered a potential efficient eukaryotic host for ranibizumab production.
First Name
 
Last Name
 
Email Address
 
Comments
 
Security code


Abstract View: 608

Your browser does not support the canvas element.


PDF Download: 315

Your browser does not support the canvas element.


Full Text View: 39

Your browser does not support the canvas element.

Submitted: 04 Jul 2020
Revision: 02 Jan 2021
Accepted: 06 Jan 2021
ePublished: 11 Oct 2021
EndNote EndNote

(Enw Format - Win & Mac)

BibTeX BibTeX

(Bib Format - Win & Mac)

Bookends Bookends

(Ris Format - Mac only)

EasyBib EasyBib

(Ris Format - Win & Mac)

Medlars Medlars

(Txt Format - Win & Mac)

Mendeley Web Mendeley Web
Mendeley Mendeley

(Ris Format - Win & Mac)

Papers Papers

(Ris Format - Win & Mac)

ProCite ProCite

(Ris Format - Win & Mac)

Reference Manager Reference Manager

(Ris Format - Win only)

Refworks Refworks

(Refworks Format - Win & Mac)

Zotero Zotero

(Ris Format - Firefox Plugin)