Applicability of Brugia malayi immune antibody library for the isolation of a human recombinant monoclonal antibody to Echinococcus granulosus antigen B

Exp Parasitol. 2020 Dec:219:108029. doi: 10.1016/j.exppara.2020.108029. Epub 2020 Oct 21.

Abstract

Echinococcus granulosus is a worldwide zoonotic infection that causes human cystic echinococcosis (CE) or hydatid disease. The present study describes the isolation and production of a monoclonal antibody against recombinant AgB protein using the developed Human AntibodY Disease ENhanced (HAYDEN)-Filariasis library. The DNA sequences of the isolated clones were analyzed, followed by gene analysis and binding assays. Clone E1 showed a full-length sequence and represents the IgHV5-LV3 antibody gene family. The antibody protein yield was satisfactory, and it reacted specifically against rAgB. The novel E1 protein is potentially useful for the development of an antigen detection assay for CE. The ability of the Brugia malayi immune antibody library to isolate antibodies against Echinococcus granulosus antigens highlights the broad coverage of immune antibody libraries.

Keywords: Hydatid disease; Monoclonal antibody; Phage display; Recombinant antigen B.

MeSH terms

  • Animals
  • Antibodies, Helminth / immunology*
  • Antibodies, Monoclonal / immunology
  • Antibodies, Monoclonal / isolation & purification*
  • Base Sequence
  • Blotting, Western
  • Brugia malayi / genetics
  • Brugia malayi / immunology*
  • Echinococcosis / diagnosis
  • Echinococcus granulosus / genetics
  • Echinococcus granulosus / immunology*
  • Electrophoresis, Polyacrylamide Gel
  • Enzyme-Linked Immunosorbent Assay
  • Epitopes / immunology
  • Humans
  • Lipoproteins / genetics
  • Lipoproteins / immunology*

Substances

  • Antibodies, Helminth
  • Antibodies, Monoclonal
  • Epitopes
  • Lipoproteins
  • antigen B, Echinococcus granulosus