Abstract：
:In this study, the haemolytic activities of Bupleurum chinense saponins (BCS) and its adjuvant potentials on the immune responses of ICR mice against ovalbumin (OVA) were evaluated. BCS showed a slight haemolytic effect, with its haemolytic percents being 3.32% and 1.19% at the concentrations of 500 and 250 microg/ml, respectively. ICR mice were immunized subcutaneously with OVA 100 microg alone or with OVA 100 microg dissolved in saline containing aluminium hydroxide gel (Alum, 200 microg), QuilA (10 and 20 microg) or BCS (50, 100 or 200 microg) on Days 1 and 15. Two weeks later (Day 28), concanavalin A (Con A)-, lipopolysaccharide (LPS)- and OVA-stimulated splenocyte proliferation and OVA-specific antibodies in serum were measured. BCS significantly enhanced the Con A-, LPS-, and OVA-induced splenocyte proliferation in the OVA-immunized mice especially at a dose of 100 microg (P<0.05 or P<0.001). OVA-specific IgG, IgG1 and IgG2b antibody levels in serum were also significantly enhanced by BCS compared with OVA control group (P<0.01 or P<0.001). Moreover, no significant differences (P>0.05) were observed between enhancing effect of BCS and QuilA on the OVA-specific IgG2b antibody responses to OVA in mice. In conclusion, the results suggest that BCS could be safely used as adjuvant with low or non-haemolytic effect.
journal_name
Vaccinejournal_title
Vaccineauthors
Sun HXdoi
10.1016/j.vaccine.2005.09.030subject
Has Abstractpub_date
2006-02-27 00:00:00pages
1324-31issue
9eissn
0264-410Xissn
1873-2518pii
S0264-410X(05)00984-9journal_volume
24pub_type
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