Disseminated Mycobacterium gordonae and Mycobacterium mantenii infection with elevated anti-IFN-γ neutralizing autoantibodies

J Infect Chemother. 2015 Jun;21(6):468-72. doi: 10.1016/j.jiac.2015.02.003. Epub 2015 Feb 12.

Abstract

A case of disseminated nontuberculous mycobacteria(l) (NTM) infection in a patient with positive neutralizing anti-interferon-γ (IFN-γ) autoantibodies involving bone, bronchus, systemic lymph nodes, and skin is reported. The causative NTMs were two different strains: Mycobacterium gordonae, which rarely causes true disease, and Mycobacterium mantenii, which is extremely rare. Anti-mycobacterial treatment successfully ameliorated all disseminated lesions. Although the concentration of anti-IFN-γ autoantibodies increased during the pre-treatment period, it gradually decreased after anti-mycobacterial treatment was started.

Keywords: Anti-IFN-γ neutralizing autoantibodies; Disseminated nontuberculous mycobacterium infection; Mycobacterium gordonae; Mycobacterium mantenii.

Publication types

  • Case Reports

MeSH terms

  • Aged
  • Antibodies, Neutralizing / immunology*
  • Autoantibodies / immunology*
  • Humans
  • Interferon-gamma / immunology*
  • Male
  • Mycobacterium Infections, Nontuberculous / immunology*
  • Nontuberculous Mycobacteria / immunology*

Substances

  • Antibodies, Neutralizing
  • Autoantibodies
  • Interferon-gamma