Highly Sensitive Detection of Zika Virus Nonstructural Protein 1 in Serum Samples by a Two-Site Nanobody ELISA

Dublin Core

Title

Highly Sensitive Detection of Zika Virus Nonstructural Protein 1 in Serum Samples by a Two-Site Nanobody ELISA

Subject

ZIKA-VIRUS
INMUNOENSAYO ELISA
NANOCUERPOS
BIBLIOGRAFIA NACIONAL QUIMICA
2020

Abstract

The Zika virus was introduced in Brazil in 2015 and, shortly after, spread all over the Americas. Nowadays, it remains present in more than 80 countries and represents a major threat due to some singularities among other flaviviruses. Due to its easy transmission, high percentage of silent cases, the severity of its associated complications, and the lack of prophylactic methods and e ective treatments, it is essential to develop reliable and rapid diagnostic tests for early containment of the infection. Nonstructural protein 1 (NS1), a glycoprotein involved in all flavivirus infections, is secreted since the beginning of the infection into the blood stream and has proven to be a valuable biomarker for the early diagnosis of other flaviviral infections. Here, we describe the development of a highly sensitive nanobody ELISA for the detection of the NS1 protein in serum samples. Nanobodies were selected from a library generated from a llama immunized with Zika NS1 (ZVNS1) by a two-step high-throughput screening geared to identify the most sensitive and specific nanobody pairs. The assay was performed with a sub-ng/mL detection limit in the sera and showed excellent reproducibility and accuracy when validated with serum samples spiked with 0.80, 1.60, or 3.10 ng/mL of ZVNS1. Furthermore, the specificity of the developed ELISA was demonstrated using a panel of flavivirus’ NS1 proteins; this is of extreme relevance in countries endemic for more than one flavivirus. Considering that the nanobody sequences are provided, the assay can be reproduced in any laboratory at low cost, which may help to strengthen the diagnostic capacity of the disease even in low-resource countries.

Creator

Delfin Riela, Triana
Rossotti, Martín
Alvez-Rosado, Romina
Leizagoyen, Carmen
González-Sapienza, Gualberto

Source

Biomolecules v. 10, 2020. -- p. 1-14.--e 1652

Publisher

MDPI

Date

2020

Rights

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Format

Pdf

Language

Inglés

Type

Artículo

Identifier

doi:10.3390/biom10121652

Document Item Type Metadata

Original Format

Pdf
Date Added
March 26, 2021
Collection
Bibliografía Nacional Química
Item Type
Document
Tags
, ,
Citation
Delfin Riela, Triana et al., “Highly Sensitive Detection of Zika Virus Nonstructural Protein 1 in Serum Samples by a Two-Site Nanobody ELISA,” RIQUIM - Repositorio Institucional de la Facultad de Química - UdelaR, accessed November 17, 2025, https://riquim.fq.edu.uy/items/show/6209.