The adjuvant effect of synthetic oligodeoxynucleotide containing CpG motif converts the anti-Haemophilus influenzae type b glycoconjugates into efficient anti-polysaccharide and anti-carrier polyvalent vaccines.
Vaccine
; 19(23-24): 3058-66, 2001 Apr 30.
Article
en En
| MEDLINE
| ID: mdl-11312000
Synthetic oligodeoxynucleotides containing CpG immunostimulatory sequences (ISS) have been shown to act as potent adjuvants of type 1 immune responses when co-administered with protein or peptide vaccines. We have recently shown that ISS can increase the anti-polysaccharide (CHO) and anti-tetanus toxoid (TT) or anti-diphtheria (CRM) toxoid antibody levels if used as adjuvant of anti-Haemophilus influenzae type b (Hib) CHO vaccine conjugated with TT or CRM. The analysis of anti-TT and anti-CRM IgG subclasses showed a significant increase in IgG2a, IgG2b and/or IgG3 in the presence of ISS. Anti-TT and anti-CRM antibodies were shown to neutralize the activity of both the tetanus and diphtheria toxin in vivo or in vitro tests respectively. These data show that ISS have the potential to increase host antibody response against both the CHO and the protein component of a conjugated vaccine, and encourage the investigation to identify strategies of vaccination with schedules aimed at the valuation of protein carriers as protective immunogens.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Oligodesoxirribonucleótidos
/
Adyuvantes Inmunológicos
/
Haemophilus influenzae
/
Vacunas contra Haemophilus
Límite:
Animals
Idioma:
En
Revista:
Vaccine
Año:
2001
Tipo del documento:
Article
País de afiliación:
Italia
Pais de publicación:
Países Bajos