Skip to main navigation Skip to search Skip to main content

Fully Human Immunoglobulin G from Transchromosomic Bovines Treats Nonhuman Primates Infected with Ebola Virus Makona Isolate

  • Thomas Luke
  • , Richard S. Bennett
  • , Dawn M. Gerhardt
  • , Tracey Burdette
  • , Elena Postnikova
  • , Steven Mazur
  • , Anna N. Honko
  • , Nicholas Oberlander
  • , Russell Byrum
  • , Dan Ragland
  • , Marisa St Claire
  • , Krisztina B. Janosko
  • , Gale Smith
  • , Gregory Glenn
  • , Jay Hooper
  • , John Dye
  • , Subhamoy Pal
  • , Kimberly A. Bishop-Lilly
  • , Theron Hamilton
  • , Kenneth Frey
  • Laura Bollinger, Jiro Wada, Hua Wu, Jin An Jiao, Gene G. Olinger, Bronwyn Gunn, Galit Alter, Surender Khurana, Lisa E. Hensley, Eddie Sullivan, Peter B. Jahrling

Research output: Contribution to journalArticlepeer-review

Abstract

Transchromosomic bovines (Tc-bovines) adaptively produce fully human polyclonal immunoglobulin (Ig)G antibodies after exposure to immunogenic antigen(s). The National Interagency Confederation for Biological Research and collaborators rapidly produced and then evaluated anti-Ebola virus IgG immunoglobulins (collectively termed SAB-139) purified from Tc-bovine plasma after sequential hyperimmunization with an Ebola virus Makona isolate glycoprotein nanoparticle vaccine. SAB-139 was characterized by several in vitro production, research, and clinical level assays using wild-type Makona-C05 or recombinant virus/antigens from different Ebola virus variants. SAB-139 potently activates natural killer cells, monocytes, and peripheral blood mononuclear cells and has high-binding avidity demonstrated by surface plasmon resonance. SAB-139 has similar concentrations of galactose-1,3-galactose carbohydrates compared with human-derived intravenous Ig, and the IgG1 subclass antibody is predominant. All rhesus macaques infected with Ebola virus/H.sapiens-tc/GIN/2014/Makona-C05 and treated with sufficient SAB-139 at 1 day (n = 6) or 3 days (n = 6) postinfection survived versus 0% of controls. This study demonstrates that Tc-bovines can produce pathogen-specific human Ig to prevent and/or treat patients when an emerging infectious disease either threatens to or becomes an epidemic.

Original languageEnglish (US)
Pages (from-to)S636-S648
JournalJournal of Infectious Diseases
Volume218
DOIs
StatePublished - Nov 22 2018
Externally publishedYes

Keywords

  • Ebola
  • bovine
  • countermeasure
  • rhesus
  • therapeutic

ASJC Scopus subject areas

  • General Medicine

Fingerprint

Dive into the research topics of 'Fully Human Immunoglobulin G from Transchromosomic Bovines Treats Nonhuman Primates Infected with Ebola Virus Makona Isolate'. Together they form a unique fingerprint.

Cite this