Serum-free cultivation of Plasmodium falciparum gametocytes in vitro.

Several components were tested for their ability to replace human serum in cultures of Plasmodium falciparum set up for the development of gametocytes. Besides a serum-free medium, AIM*V (Gibco BRL), RPMI medium supplemented with commercially available serum substitutes was used to culture gametocytes. The following substances served as serum replacements: Basal Medium Supplement (Biochrom), Ultroser G (Gibco BRL) and Nutridoma-SR (Boehringer Mannheim). All serum-free additives supported some parasite growth, but only in RPMI supplemented with Nutridoma-SR were morphologically mature gametocytes obtained. The asexual forms developed almost as well as in RPMI with human serum added.