A point-mutated Ag85B antigen improves recombinant bacterial expression and protects mice from aerosol M. tuberculosis challenge

Key Points

• Point mutation in the Ag85B antigen significantly enhances recombinant bacterial expression, leading to better outcomes against tuberculosis.
• Mice exposed to the aerosol challenge showed improved protection levels with the modified antigen, indicating a robust immune response.
• The study used a controlled animal model to evaluate the effectiveness of the point-mutated Ag85B against Mycobacterium tuberculosis.
• These findings may enable future advancements in tuberculosis vaccine development and highlight the importance of antigen modification.