Updates on antibody functions in Mycobacterium tuberculosis infection and their relevance for developing a vaccine against tuberculosis

JM Achkar, R Prados-Rosales - Current opinion in immunology, 2018 - Elsevier
JM Achkar, R Prados-Rosales
Current opinion in immunology, 2018Elsevier
Highlights•Antibody functions against M. tuberculosis differ among infection states in
humans.•These functions are influenced by isotypes and IgG Fc glycosylation
structures.•Inducing M. tuberculosis surface-specific antibodies improves TB vaccine
efficacy.•Vaccination induced antibodies may be synergistic with the cellular response.A
more effective vaccine to control tuberculosis (TB), a major global public health problem, is
urgently needed. Current vaccine candidates focus predominantly on eliciting cell-mediated …
Highlights
  • Antibody functions against M. tuberculosis differ among infection states in humans.
  • These functions are influenced by isotypes and IgG Fc glycosylation structures.
  • Inducing M. tuberculosis surface-specific antibodies improves TB vaccine efficacy.
  • Vaccination induced antibodies may be synergistic with the cellular response.
A more effective vaccine to control tuberculosis (TB), a major global public health problem, is urgently needed. Current vaccine candidates focus predominantly on eliciting cell-mediated immunity but other arms of the immune system also contribute to protection against TB. We review here recent studies that enhance our current knowledge of antibody-mediated functions against Mycobacterium tuberculosis. These findings, which contribute to the increasing evidence that antibodies have a protective role against TB, include demonstrations that firstly distinct human antibody Fc glycosylation patterns, found in latent M. tuberculosis infection but not in active TB, influence the efficacy of the host to control M. tuberculosis infection, secondly antibody isotype influences human antibody functions, and thirdly that antibodies targeting M. tuberculosis surface antigens are protective. We discuss these findings in the context of TB vaccine development and highlight the need for further research on antibody-mediated immunity in M. tuberculosis infection.
Elsevier