Immune responses elicited by bacterial minicells capable of simultaneous DNA and protein antigen delivery.
Vaccine
; 24(33-34): 6009-17, 2006 Aug 14.
Article
in En
| MEDLINE
| ID: mdl-16806602
ABSTRACT
Recent events surrounding emerging infectious diseases, bioterrorism and increasing multidrug antibiotic resistance in bacteria have drastically increased current needs for effective vaccines. Many years of study have shown that live, attenuated pathogens are often more effective at delivering heterologous protein or DNA to induce protective immune responses. However, these vaccine carriers have inherent safety concerns that have limited their development and their use in many patient populations. Studies using nonliving delivery mechanisms have shown that providing both protein antigen and DNA encoding the antigen to an individual induces an improved, more protective immune response but rarely, if ever, are both delivered simultaneously. Here, non-replicating bacterial minicells derived from a commensal E. coli strain are shown to effectively induce antigen-specific immune responses after simultaneous protein and DNA delivery. These data demonstrate the potential use of achromosomal bacterial minicells as a vaccine carrier.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Vaccines, Synthetic
/
Vaccines, DNA
/
Green Fluorescent Proteins
/
Escherichia coli
/
Antibody Formation
Limits:
Animals
Language:
En
Journal:
Vaccine
Year:
2006
Document type:
Article
Affiliation country:
United States