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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

Humoral and cellular immunity induced by antigens adjuvanted with colloidal iron hydroxide.

The immunopotentiating activities of colloidal iron hydroxide, a novel, experimental mineral adjuvant, and of aluminium hydroxide. the licensed adjuvant for human vaccines, were compared. Our studies revealed that colloidal iron hydroxide and aluminium hydroxide behaved comparably with respect to supporting induction of an antibody response to tetanus toxoid. Furthermore, mice immunized with both, the experimental vaccine (tick-borne encephalitis virus (TBEV) antigen adsorbed to colloidal iron hydroxide) or with a commercially available TBEV vaccine (adjuvanted with aluminium hydroxide), developed long-lasting antibody responses which protected the animals from TBEV infection even one year after vaccination. The use of colloidal iron hydroxide as adjuvant had the additional advantage to reproducibly support induction of HIV-1 envelope-specific cytotoxic T lymphocytes (CTL), when used as adjuvant for a HIV-1 env-carrying recombinant fowlpox virus and being applied via the subcutaneous route. Aluminium hydroxide was much less active in this respect. Non-adjuvanted recombinant fowlpox elicited CTLs only when given intravenously or intraperitoneally, vaccination routes considered not to be suitable for routine use in humans. Further studies to evaluate the use of colloidal iron as possible alternative and/or supplement for routinely used mineral adjuvants may therefore be warranted.[1]


  1. Humoral and cellular immunity induced by antigens adjuvanted with colloidal iron hydroxide. Leibl, H., Tomasits, R., Brühl, P., Kerschbaum, A., Eibl, M.M., Mannhalter, J.W. Vaccine (1999) [Pubmed]
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