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Escherichia coli in...
Escherichia coli induces transuroepithelial neutrophil migration by an intercellular adhesion molecule-1-dependent mechanism
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- Agace, W. W. (författare)
- Lund University,Lunds universitet,Slemhinnans immunologi,Forskargrupper vid Lunds universitet,Mucosal Immunology,Lund University Research Groups
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- Patarroyo, M. (författare)
- Karolinska Institutet
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- Svensson, M. (författare)
- Lund University,Lunds universitet,Avdelningen för mikrobiologi, immunologi och glykobiologi - MIG,Institutionen för laboratoriemedicin,Medicinska fakulteten,Division of Microbiology, Immunology and Glycobiology - MIG,Department of Laboratory Medicine,Faculty of Medicine
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- Carlemalm, E. (författare)
- Lund University,Lunds universitet,Sektion V,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,Section V,Department of Clinical Sciences, Lund,Faculty of Medicine
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- Svanborg, C. (författare)
- Lund University,Lunds universitet,Avdelningen för mikrobiologi, immunologi och glykobiologi - MIG,Institutionen för laboratoriemedicin,Medicinska fakulteten,Division of Microbiology, Immunology and Glycobiology - MIG,Department of Laboratory Medicine,Faculty of Medicine
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(creator_code:org_t)
- 1995
- 1995
- Engelska 9 s.
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Ingår i: Infection and Immunity. - 0019-9567. ; 63:10, s. 4054-4062
- Relaterad länk:
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https://lup.lub.lu.s...
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http://kipublication...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- During bacterial infections at mucosal sites, neutrophils migrate to the mucosa and cross the epithelial barrier. We have examined neutrophil migration across Escherichia coli-stimulated uroepithelial cell layers in an attempt to more fully understand this process. Stimulation of uroepithelial cells with E. coli or interleukin-1α (IL-1α) induced transepithelial neutrophil migration in a time- and stimulant dose-dependent manner. Uroepithelial cell lines and nontransformed uroepithelial cells expressed intercellular adhesion molecule-1 (ICAM-1) but not ICAM-2, E-selectin, or P- selectin. Epithelial ICAM-1 expression was enhanced after stimulation with E. coli or IL-1α. Anti-ICAM-1 antibody reduced transepithelial neutrophil migration by 61 to 85%, indicating that neutrophils bound ICAM-1 on the epithelial surface. Antibodies to CD18 and CD11b reduced migration by 70 to 79%, suggesting that CD11b/CD18 (Mac-1) was acting as the neutrophil receptor for ICAM-1 in this process. Anti-CD11a antibodies had no effect on neutrophil migration. In conclusion, E. coli induced ICAM-1- and Mac-1-dependent transepithelial neutrophil migration. Previous studies have shown that urinary tract epithelial cells secrete IL-8 when exposed to E. coli or IL- 1α. These observations suggest that epithelial cells play an active role in neutrophil migration during urinary tract infections.
Ämnesord
- MEDICIN OCH HÄLSOVETENSKAP -- Medicinska och farmaceutiska grundvetenskaper -- Immunologi inom det medicinska området (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Basic Medicine -- Immunology in the medical area (hsv//eng)
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
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