Role of antibody to leukocytosis-promoting factor hemagglutinin and to filamentous hemagglutinin in immunity to pertussis

Autor: J L Cowell, C R Manclark, H Sato, K Izumiya, Y Sato
Rok vydání: 1981
Předmět:
Zdroj: Infection and Immunity. 31:1223-1231
ISSN: 1098-5522
0019-9567
DOI: 10.1128/iai.31.3.1223-1231.1981
Popis: Gamma globulins were obtained from rabbits hyperimmunized with the filamentous hemagglutinin (FHA) or the leukocytosis-promoting factor hemagglutinin (LPF.HA) of Bordetella pertussis. Double immunodiffusion analyses showed the antibodies to be highly specific for the homologous antigen. Intraperitoneal injection of anti-FHA or anti-LPF.HA into 10-day-old ICR mice 30 min before aerosol challenge with B. pertussis protected the mice from disease as evidenced by survival and a normal rate of gain in body weight. Both anti-LPF.HA and anti-FHA enhanced the clearance of B. pertussis from the lung and prevented leukocytosis which normally occurs after aerosol infection of mice with B. pertussis. Anti-LPF.HA, but not anti-FHA, neutralized the leukocytosis-promoting and histamine-sensitizing activities of LPF.HA when incubated with the purified protein in vitro. Anti-FHA, but not anti-LPF.HA, prevented the attachment of B. pertussis to mammalian cells (HeLa and Vero) in culture.
Databáze: OpenAIRE