Unified platform for genetic and serological detection of COVID-19 with single-molecule technology

PLoS One. 2021 Jul 26;16(7):e0255096. doi: 10.1371/journal.pone.0255096. eCollection 2021.

Abstract

The COVID-19 pandemic raises the need for diverse diagnostic approaches to rapidly detect different stages of viral infection. The flexible and quantitative nature of single-molecule imaging technology renders it optimal for development of new diagnostic tools. Here we present a proof-of-concept for a single-molecule based, enzyme-free assay for detection of SARS-CoV-2. The unified platform we developed allows direct detection of the viral genetic material from patients' samples, as well as their immune response consisting of IgG and IgM antibodies. Thus, it establishes a platform for diagnostics of COVID-19, which could also be adjusted to diagnose additional pathogens.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Antibodies, Viral / blood
  • Base Sequence
  • COVID-19 / blood
  • COVID-19 / diagnosis*
  • COVID-19 / immunology
  • COVID-19 / virology
  • COVID-19 Nucleic Acid Testing / methods*
  • COVID-19 Nucleic Acid Testing / standards
  • COVID-19 Serological Testing / methods*
  • COVID-19 Serological Testing / standards
  • Enzyme-Linked Immunosorbent Assay
  • Humans
  • Immune Sera / chemistry
  • Immunoglobulin G / blood
  • Immunoglobulin M / blood
  • Nasopharynx / virology
  • Polyproteins / blood
  • Polyproteins / genetics
  • RNA, Viral / blood
  • RNA, Viral / genetics
  • SARS-CoV-2 / genetics
  • SARS-CoV-2 / immunology*
  • Sensitivity and Specificity
  • Single Molecule Imaging / instrumentation
  • Single Molecule Imaging / methods*
  • Viral Proteins / blood
  • Viral Proteins / genetics*

Substances

  • Antibodies, Viral
  • Immune Sera
  • Immunoglobulin G
  • Immunoglobulin M
  • ORF1ab polyprotein, SARS-CoV-2
  • Polyproteins
  • RNA, Viral
  • Viral Proteins

Grants and funding

N.F. is supported by the Israel Cancer Research Fund. E.S. is an incumbent of the Lisa and Jeffrey Aronin Family Career Development chair. This research was supported by internal grants of the Weizmann Institute of Science, as well as Quinquin Foundation, The Benoziyo Fund for the Advancement of Science, The Sagol Institute for Longevity Research and The Willner Family Center for Vascular Biology.