RBD immunogen

SARS-CoV-2 Spike protein Receptor Binding Domain used for immunization.

Phase of research

Potential treatment - pre-clinical evidence

How it helps

Vaccine

Drug status

Experimental

2
Supporting references
0
Contradictory references
6
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0
Clinical trials

General information

RBD immunogen refers to various experimental protein preparations which elicit immune response based on SARS-CoV-2 Spike RBD presentation.

The recombinant RBD domain or RBD/mouse IgG1-Fc fusion protein was used experimentally to induce immune response by Zang et al. (2020) or to elicit lasting neutralizing antibody response in mice, optimally when adjuvanted with Zn-chitosan, by Srivastava et al. (2021).

 


Supporting references

Link Tested on Impact factor Notes Publication date
Immunization with the receptor-binding domain of SARS-CoV-2 elicits antibodies cross-neutralizing SARS-CoV-2 and SARS-CoV without antibody-dependent enhancement
Spike protein Protein factor Animal model In vitro
BALB/c mice; in vitro assays 6.26

The SARS-CoV-2 spike protein recombinant RBD domain or RBD/mouse IgG1-Fc fusion protein was used to immunize mice. The anti-sera from immunized mice were found to react with RBD, competitively inhibit ACE2-RBD binding and neutralized SARS-CoV-2 pseudovirus in vitro without antibody-dependent enhancement.

Sep/03/2020
Induction of Potent and Durable Neutralizing Antibodies Against SARS-CoV-2 Using a Receptor Binding Domain-Based Immunogen
Spike protein Protein factor Animal model In vitro
in vitro binding assay; Vero E6 cells; female BALB/c mice; SARS CoV-2 (ATCC CRL-1586) 5.09

The recombinant protein domain with conserved glycosylation and disulphide bridge sites was used as an immunogen. It was adjuvanted with a spectrum of formulations. After three rounds of vaccination in mice, high titres of RBD-binding and virus-neutralizing antibodies were detected. The likely protective effect persisted during the full observation period and was most potent when Zn-chitosan was used as an adjuvant.

Mar/11/2021

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