title: Absorption of ablastic activity from mouse serum by using a Trypanosoma musculi population rich in dividing forms.
abstract: An in vivo assay of ablastin activity was developed by passive transfer of ablastic serum into nude mice. Preparations of Trypanosoma musculi that contained 35 to 50% dividing forms removed ablastic activity from mouse serum, but absorption of serum with a parasite preparation consisting of less than 5% dividing forms did not appreciably alter ablastic activity. These data suggest that ablastin is an antibody that can be absorbed onto homologous trypanosomes.
mesh_terms: D000818:Animals; D000906:Antibodies / Q000502:physiology*; D006790:Host-Parasite Interactions; D051379:Mice; D008819:Mice, Nude / Q000097:blood / Q000276:immunology* / Q000469:parasitology; D014345:Trypanosoma / Q000276:immunology*
chemical_list: D000906:Antibodies