Results 21 to 30 of about 51,251 (208)

Protection against pertussis in humans correlates to elevated serum antibodies and memory B cells [PDF]

open access: yes, 2017
Pertussis is a respiratory infection caused by Bordetella pertussis that may be particularly severe and even lethal in the first months of life when infants are still too young to be vaccinated. Adults and adolescents experience mild symptoms and are the
Carsetti, Rita   +13 more
core   +1 more source

Severe pertussis infection in infants less than 6 months of age: clinical manifestations and molecular characterization [PDF]

open access: yes, 2017
We conducted a study to determine the main traits of pertussis among unimmunized infants less than 6 months of age. From August 2012 to March 2015, 141 nasopharyngeal aspirates (NPAs) were collected from infants with respiratory symptoms attending 2
Buttinelli, Gabriele   +12 more
core   +1 more source

Genetics of pertussis toxin [PDF]

open access: yesMolecular Microbiology, 1989
SummaryPertussis toxin (PT) is the major virulence factor of Bordetella pertussis. The cloning and nucleotide sequencing of the PT genes from B. pertussis, Bordetella parapertussis and Bordetella bronchiseptica has elucidated the evolution of the Bordetella species and allowed considerable advances towards the understanding of their gene expression and
R, Gross, B, Aricò, R, Rappuoli
openaire   +2 more sources

The Fim and FhaB adhesins play a crucial role in nasal cavity infection and Bordetella pertussis transmission in a novel mouse catarrhal infection model.

open access: yesPLoS Pathogens, 2022
Pulmonary infections caused by Bordetella pertussis used to be the prime cause of infant mortality in the pre-vaccine era and mouse models of pertussis pneumonia served in characterization of B. pertussis virulence mechanisms.
Jana Holubova   +5 more
doaj   +1 more source

Ibrutinib inhibits SDF1/CXCR4 mediated migration in AML [PDF]

open access: yes, 2014
Pharmacological targeting of BTK using ibrutinib has recently shown encouraging clinical activity in a range of lymphoid malignancies. Recently we reported that ibrutinib inhibits human acute myeloid leukemia (AML) blast proliferation and leukemic cell ...
Bowles, Kristian M   +6 more
core   +2 more sources

Promoter of the pertussis toxin operon and production of pertussis toxin [PDF]

open access: yesJournal of Bacteriology, 1987
Pertussis toxin (PT), the major virulence factor of Bordetella pertussis, is composed of five different subunits whose genes are organized as an operon. We report the mapping of the promoter region of the PT operon and show that this promoter is only weakly active in Escherichia coli. Bordetella parapertussis and Bordetella bronchiseptica, which do not
NICOSIA, Alfredo, R. RAPPUOLI
openaire   +3 more sources

Genetically detoxified pertussis toxin induces superior antigen specific CD4 T cell responses compared to chemically detoxified pertussis toxin

open access: yesHuman Vaccines & Immunotherapeutics, 2019
Pertussis is resurgent worldwide. Currently available acellular pertussis vaccines contain chemically detoxified pertussis toxin (PTc); a highly immunogenic genetically detoxified pertussis toxin (PTg) vaccine has been off the market for over a decade ...
Naveen Surendran, Michael Pichichero
doaj   +1 more source

A phase IV, multi-centre, randomized clinical trial comparing two pertussis-containing vaccines in pregnant women in England and vaccine responses in their infants

open access: yesBMC Medicine, 2021
Background Pertussis vaccines containing three or five pertussis antigens are recommended in pregnancy in many countries, but no studies have compared the effect on infants’ antigen-specific immunoglobulin G (IgG) concentrations.
Christine Elizabeth Jones   +10 more
doaj   +1 more source

PTX Instructs the Development of Lung-Resident Memory T Cells in Bordetella pertussis Infected Mice

open access: yesToxins, 2021
Whooping cough is a severe, highly contagious disease of the human respiratory tract, caused by Bordetellapertussis. The pathogenicity requires several virulence factors, including pertussis toxin (PTX), a key component of current available vaccines ...
Julie Tomas   +6 more
doaj   +1 more source

Generalized Lévy walks and the role of chemokines in migration of effector CD8+ T cells. [PDF]

open access: yes, 2012
Chemokines have a central role in regulating processes essential to the immune function of T cells, such as their migration within lymphoid tissues and targeting of pathogens in sites of inflammation.
Banigan, Edward J   +11 more
core   +2 more sources

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