We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Aluminum Hydroxide Adjuvant Differentially Activates the Three Complement Pathways with Major Involvement of the Alternative Pathway.
- Authors
Güven, Esin; Duus, Karen; Laursen, Inga; Højrup, Peter; Houen, Gunnar
- Abstract
Al(OH)3 is the most common adjuvant in human vaccines, but its mode of action remains poorly understood. Complement involvement in the adjuvant properties of Al(OH)3 has been suggested in several reports together with a depot effect. It is here confirmed that Al(OH)3 treatment of serum depletes complement components and activates the complement system. We show that complement activation by Al(OH)3 involves the three major pathways by monitoring complement components in Al(OH)3-treated serum and in Al(OH)3-containing precipitates. Al(OH)3 activation of complement results in deposition of C3 cleavage products and membrane attack complex (MAC) and in generation of the anaphylatoxins C3a and C5a. Complement activation was time dependent and inhibited by chelation with EDTA but not EGTA+Mg2+. We thus confirm that Al(OH)3 activates the complement system and show that the alternative pathway is of major importance.
- Subjects
ALUMINUM hydroxide; IMMUNOLOGICAL adjuvants; BLOOD serum analysis; COMPLEMENT activation; ANAPHYLATOXINS; EGTAZIC acid; BIOCHEMISTRY
- Publication
PLoS ONE, 2013, Vol 8, Issue 9, p1
- ISSN
1932-6203
- Publication type
Article
- DOI
10.1371/journal.pone.0074445