Literature DB >> 11991617

Cellular immune responses in Helicobacter heilmannii infection: evaluation of the role of the host and the bacterium.

S M S Cinque1, D M M Queiroz, G A Rocha, T F Soares, A M M F Nogueira, A M C Faria, O A Martins-Filho, R Correa-Oliveira.   

Abstract

We evaluated some aspects of the immune response to Helicobacter heilmannii in two mouse strains. Gastritis that was more severe in infected C57BL/6 mice. A proliferative response to H. pylori antigens was observed in splenocytes from H. heilmannii-positive and -negative mice, similar in the positive- and negative-BALB/c mice, but lower in the positive- than in the negative-C57BL/6 animals. A decrease in B cells and an increase in CD4+ cells after stimulation with type I H. pylori antigen and an increase in CD8+ cells after stimulation with type I and II antigens was observed in infected C57BL/6 mice. Conversely, the percentage of CD4+, CD8+, and B cells was similar in positive- and negative-BALB/c mice. These results demonstrated that the immune response is similar in H. heilmannii and H. pylori infection and strengthened the importance of host and bacterial virulence markers in the immune response to gastric Helicobacter infections.

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Year:  2002        PMID: 11991617     DOI: 10.1023/a:1014756404047

Source DB:  PubMed          Journal:  Dig Dis Sci        ISSN: 0163-2116            Impact factor:   3.199


  35 in total

1.  Suppressor effector function of CD4+CD25+ immunoregulatory T cells is antigen nonspecific.

Authors:  A M Thornton; E M Shevach
Journal:  J Immunol       Date:  2000-01-01       Impact factor: 5.422

2.  T-cell, antibody, and cytokine responses to homologs of the 60-kilodalton heat shock protein in Helicobacter pylori infection.

Authors:  S A Sharma; G G Miller; R A Peek; G Pérez-Pérez; M J Blaser
Journal:  Clin Diagn Lab Immunol       Date:  1997-07

3.  Gastric ulcers and Helicobacter heilmannii.

Authors:  J C Debongnie; M Donnay; J Mairesse; V Lamy; X Dekoninck; B Ramdani
Journal:  Eur J Gastroenterol Hepatol       Date:  1998-03       Impact factor: 2.566

4.  Gastric lymphoma and Helicobacter pylori.

Authors:  P G Isaacson
Journal:  N Engl J Med       Date:  1994-05-05       Impact factor: 91.245

5.  Helicobacter heilmannii-associated primary gastric low-grade MALT lymphoma: complete remission after curing the infection.

Authors:  A Morgner; N Lehn; L P Andersen; C Thiede; M Bennedsen; K Trebesius; B Neubauer; A Neubauer; M Stolte; E Bayerdörffer
Journal:  Gastroenterology       Date:  2000-05       Impact factor: 22.682

Review 6.  The role of Helicobacter species in newly recognized gastrointestinal tract diseases of animals.

Authors:  J G Fox; A Lee
Journal:  Lab Anim Sci       Date:  1997-06

Review 7.  Helicobacter pylori and the pathogenesis of gastroduodenal inflammation.

Authors:  M J Blaser
Journal:  J Infect Dis       Date:  1990-04       Impact factor: 5.226

8.  A spiral microorganism in the stomach of pigs.

Authors:  D M Queiroz; G A Rocha; E N Mendes; A P Lage; A C Carvalho; A J Barbosa
Journal:  Vet Microbiol       Date:  1990-08       Impact factor: 3.293

Review 9.  Helicobacter pylori phenotypes associated with peptic ulceration.

Authors:  M J Blaser
Journal:  Scand J Gastroenterol Suppl       Date:  1994

10.  Naive and memory T cells show distinct pathways of lymphocyte recirculation.

Authors:  C R Mackay; W L Marston; L Dudler
Journal:  J Exp Med       Date:  1990-03-01       Impact factor: 14.307

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