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Cholera caused by Vibrio cholerae O1 induces T-cell responses in the circulation.

Bhuiyan, Taufiqur Rahman, 1974 (author)
Gothenburg University,Göteborgs universitet,Institutionen för biomedicin, avdelningen för mikrobiologi och immunologi,Institute of Biomedicine, Department of Microbiology and Immunology
Lundin, Samuel B, 1970 (author)
Gothenburg University,Göteborgs universitet,Institutionen för biomedicin, avdelningen för mikrobiologi och immunologi,Institute of Biomedicine, Department of Microbiology and Immunology
Khan, Ashraful Islam (author)
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Lundgren, Anna, 1974 (author)
Gothenburg University,Göteborgs universitet,Institutionen för biomedicin, avdelningen för mikrobiologi och immunologi,Institute of Biomedicine, Department of Microbiology and Immunology
Harris, Jason B (author)
Calderwood, Stephen B (author)
Qadri, Firdausi (author)
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 (creator_code:org_t)
2009
2009
English.
In: Infection and immunity. - 1098-5522. ; 77:5, s. 1888-93
  • Journal article (peer-reviewed)
Abstract Subject headings
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  • Considerable effort is being made to understand the acute and memory antibody responses in natural cholera infection, while rather less is known about the roles of cellular immune responses involving T and B lymphocytes. We studied responses in adult patients hospitalized with cholera caused by Vibrio cholerae O1. Peripheral blood mononuclear cells from patients (n = 15) were analyzed by flow cytometry after stimulation with V. cholerae O1 membrane protein (MP) or toxin-coregulated pilus antigen (TcpA). The gamma interferon (IFN-gamma) and interleukin-13 (IL-13) responses in stimulated-lymphocyte supernatants were studied. The responses were compared with those of healthy controls (n = 10). Patients responded with increased frequencies of gut-homing CD4(+) T cells (CD4(+) beta7(+)), gut-homing CD8(+) T cells (CD8(+) beta7(+)), and gut-homing B cells (CD19(+) beta7(+)) at the early and/or late convalescent stages compared to the acute stage. After stimulation with MP or TcpA, proliferation of CD4(+) and CD8(+) T cells was increased at the acute stage and/or early convalescent stage compared to healthy controls. Increased IL-13 and IFN-gamma responses were observed after antigenic stimulation at the acute and convalescent stages compared to healthy controls. Thus, increases in the levels of gut-homing T and B cells, as well as involvement of CD8 and CD4 Th1-mediated (IFN-gamma) and CD4 Th2-mediated (IL-13) cytokine responses, take place in acute dehydrating disease caused by V. cholerae O1. Further studies are needed to determine if such responses are also stimulated after immunization with oral cholera vaccines and if these responses play a role in protection following exposure to cholera.

Subject headings

MEDICIN OCH HÄLSOVETENSKAP  -- Medicinska och farmaceutiska grundvetenskaper -- Mikrobiologi inom det medicinska området (hsv//swe)
MEDICAL AND HEALTH SCIENCES  -- Basic Medicine -- Microbiology in the medical area (hsv//eng)

Keyword

Adolescent
Adult
B-Lymphocyte Subsets
immunology
Cells
Cultured
Cholera
immunology
Flow Cytometry
Humans
Interferon-gamma
secretion
Interleukin-13
secretion
Male
Middle Aged
T-Lymphocyte Subsets
immunology
T-Lymphocytes
immunology
Vibrio cholerae O1
immunology
Young Adult

Publication and Content Type

ref (subject category)
art (subject category)

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