The development of ghost vaccines trials.

Area of Science:

• Biotechnology
• Vaccinology
• Immunology

Background:

• Bacterial ghosts are bacterial cell envelopes emptied of cellular contents.
• Ghost technology offers enhanced vaccine safety while preserving antigenicity.
• These platforms can express or carry antigens and DNA encoding epitopes.

Purpose of the Study:

• To review the development and applications of bacterial ghost vaccines over 30 years.
• To discuss how ghost vaccines stimulate the immune system, their benefits, and drawbacks.
• To categorize production methods and diverse applications of bacterial ghosts.

Main Methods:

• Classification of ghost vaccine production methods based on lysis patterns and bacterial types.
• Review of applications including killed vaccines, recombinant antigen platforms, and DNA carriers.
• Description of phage-mediated lysis and molecular manipulation of lysis genes.

Main Results:

• Bacterial ghosts serve as effective immune-presenting platforms for various vaccine types.
• Applications include alternative killed vaccines, recombinant antigen presentation, DNA vaccine delivery, and adjuvant use.
• The technology has evolved significantly, with ongoing molecular advancements.

Conclusions:

• Bacterial ghosts are highly qualified immune-presenting platforms.
• They are efficient as alternative killed vaccines and carriers for recombinant and DNA vaccines.
• Future molecular advancements will further enhance ghost production and antigen expression.