Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1999-2-4
pubmed:abstractText
Porins, purified from Salmonella typhi strain 0901 provided 90% protection to BALB/c mice against a lethal dose (300 x LD50) of S. typhi Ty2 when given intraperitoneally. To measure the porin-induced cellular immune responses, macrophages and lymphocytes were isolated from spleen and lamina propria (LP) of porin immunised-challenge mice and of infected and control mice; T-cell phenotypes, lymphocyte proliferation and cytokine production were studied. The secretory IgA (sIgA) antibody level in the intestinal fluid was also measured to study mucosal immune response. After immunisation, the splenic lymphocytes exhibited a significant increase in total T-cell count and CD4+/CD8+ ratio, while the LP lymphocytes (LPL) exhibited an increase in CD4+/CD8+ ratio only. They also exhibited a significant increase in porin-specific proliferative response and cytokine levels (IL-1, IL-2, IFN-gamma and IL-4). After immunisation, sIgA antibody was also found to be increased. These results suggest that porins given intraperitoneally induce cellular and humoral immune responses both at systemic and mucosal levels.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
0022-2615
pubmed:author
pubmed:issnType
Print
pubmed:volume
48
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
79-88
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed-meshheading:9920129-Animals, pubmed-meshheading:9920129-Antibodies, Bacterial, pubmed-meshheading:9920129-Immunity, Mucosal, pubmed-meshheading:9920129-Immunization, pubmed-meshheading:9920129-Immunoglobulin A, Secretory, pubmed-meshheading:9920129-Injections, Intraperitoneal, pubmed-meshheading:9920129-Interferon-gamma, pubmed-meshheading:9920129-Interleukins, pubmed-meshheading:9920129-Intestinal Mucosa, pubmed-meshheading:9920129-Lymphocyte Activation, pubmed-meshheading:9920129-Lymphocyte Count, pubmed-meshheading:9920129-Macrophages, pubmed-meshheading:9920129-Mice, pubmed-meshheading:9920129-Mice, Inbred BALB C, pubmed-meshheading:9920129-Porins, pubmed-meshheading:9920129-Salmonella typhi, pubmed-meshheading:9920129-Spleen, pubmed-meshheading:9920129-T-Lymphocytes, pubmed-meshheading:9920129-Typhoid Fever
pubmed:year
1999
pubmed:articleTitle
Induction of systemic and mucosal immune response in mice immunised with porins of Salmonella typhi.
pubmed:affiliation
Department of Paediatrics, Postgraduate Institute of Medical Education and Research, Chandigarh, India.
pubmed:publicationType
Journal Article