title: Cell-mediated immunity after pertussis vaccination and after natural infection.
abstract: The aim of this study was the investigation of the specific cell-mediated (CMI) responses induced by DTaP and to compare these data to immunity after natural infection. The ability of peripheral blood T-lymphocytes to respond to the pertussis related antigens pertussis-toxin (PT), filamentous haemagglutinin (FHA), and Pertactin (PRN) was investigated in 40 children before vaccination and at different times after vaccination with DTaP (Infanrix) by measurement of antigen-specific proliferation, lymphocyte phenotype, cytokine production and expression of activation markers (CD25, HLADR). Similar investigations were performed in children 4-6 weeks after recovery from natural pertussis. DTaP created a specific T-cell-response to PT, FHA and PRN that increased continually, depending on the progress of the vaccination schedule. In contrast to waning antibody titres, CMI was stable even between the post-basic vaccination and the pre-booster period. The magnitude of CMI after DTaP equalled those after natural infection. Measurement of cytokine-pattern showed induction of IFN-tau-producing T-helper-1-cells with lower stimulation of IL 10-producing T-helper-2-cells for DTaP and natural infection. Our data indicate that DTaP-vaccination induces a potent immune response to PT, FHA, and PRN at least equivalent to CMI after natural infection. The finding of a preferential T-helper-1-induction after DTaP and natural infection suggests a role of IFN gamma-activated macrophages in the protective response against B. pertussis-induced disease.
authors.affiliation: Children's Hospital, Pediatric Immunology & Infectious Diseases, Johannes Gutenberg-University, Mainz, Germany.
authors.forename: F
authors.initials: F
authors.lastname: Zepp
authors.forename: M
authors.initials: M
authors.lastname: Knuf
authors.forename: P
authors.initials: P
authors.lastname: Habermehl
authors.forename: H J
authors.initials: HJ
authors.lastname: Schmitt
authors.forename: C
authors.initials: C
authors.lastname: Meyer
authors.forename: R
authors.initials: R
authors.lastname: Clemens
authors.forename: M
authors.initials: M
authors.lastname: Slaoui
mesh_terms: D018829:Adhesins, Bacterial / Q000276:immunology; D000907:Antibodies, Bacterial / Q000096:biosynthesis; D000942:Antigens, Bacterial / Q000276:immunology; D001425:Bacterial Outer Membrane Proteins / Q000276:immunology; D016207:Cytokines / Q000096:biosynthesis; D015721:Diphtheria-Tetanus-Pertussis Vaccine / Q000276:immunology*; D022681:Diphtheria-Tetanus-acellular Pertussis Vaccines; D006684:HLA-DR Antigens / Q000378:metabolism; D006388:Hemagglutinins / Q000276:immunology; D006801:Humans; D007111:Immunity, Cellular; D007223:Infant; D008213:Lymphocyte Activation; D037342:Pertussis Toxin; D010641:Phenotype; D015375:Receptors, Interleukin-2 / Q000378:metabolism; D013601:T-Lymphocytes / Q000276:immunology*; D010566:Virulence Factors, Bordetella / Q000276:immunology; D014917:Whooping Cough / Q000276:immunology* / Q000517:prevention & control
chemical_list: D018829:Adhesins, Bacterial; D000907:Antibodies, Bacterial; D000942:Antigens, Bacterial; D001425:Bacterial Outer Membrane Proteins; D016207:Cytokines; D015721:Diphtheria-Tetanus-Pertussis Vaccine; D022681:Diphtheria-Tetanus-acellular Pertussis Vaccines; D006684:HLA-DR Antigens; D006388:Hemagglutinins; D015375:Receptors, Interleukin-2; D010566:Virulence Factors, Bordetella; C065273:filamentous hemagglutinin adhesin, Bordetella pertussis; C068929:pertactin; D037342:Pertussis Toxin