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Human mast cells de...
Human mast cells decrease SLPI levels in type II - like alveolar cell model, in vitro.
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- Hollander, Camilla (author)
- Lund University,Lunds universitet,Enheten för kroniska inflammatoriska och degenerativa sjukdomar,Forskargrupper vid Lunds universitet,Chronic Inflammatory and Degenerative Diseases Research Unit,Lund University Research Groups
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- Nyström, Max (author)
- Lund University,Lunds universitet,Enheten för kroniska inflammatoriska och degenerativa sjukdomar,Forskargrupper vid Lunds universitet,Chronic Inflammatory and Degenerative Diseases Research Unit,Lund University Research Groups
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- Janciauskiene, Sabina (author)
- Lund University,Lunds universitet,Enheten för kroniska inflammatoriska och degenerativa sjukdomar,Forskargrupper vid Lunds universitet,Chronic Inflammatory and Degenerative Diseases Research Unit,Lund University Research Groups
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- Westin, Ulla (author)
- Lund University,Lunds universitet,Laryngoesofagologi, allergi och livskvalitet,Forskargrupper vid Lunds universitet,Laryngoesophagology, Allergy and Life Quality,Lund University Research Groups
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(creator_code:org_t)
- Springer Science and Business Media LLC, 2003
- 2003
- English 9 s.
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In: Cancer Cell International. - : Springer Science and Business Media LLC. - 1475-2867. ; 3:1
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Abstract
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- Background Mast cells are known to accumulate at sites of inflammation and upon activation to release their granule content, e.g. histamine, cytokines and proteases. The secretory leukocyte protease inhibitor (SLPI) is produced in the respiratory mucous and plays a role in regulating the activity of the proteases. Result We have used the HMC-1 cell line as a model for human mast cells to investigate their effect on SLPI expression and its levels in cell co-culture experiments, in vitro. In comparison with controls, we found a significant reduction in SLPI levels (by 2.35-fold, p < 0.01) in a SLPI-producing, type II-like alveolar cell line, (A549) when co-cultured with HMC-1 cells, but not in an HMC-1-conditioned medium, for 96 hours. By contrast, increased SLPI mRNA expression (by 1.58-fold, p < 0.05) was found under the same experimental conditions. Immunohistochemical analysis revealed mast cell transmigration in co-culture with SLPI-producing A549 cells for 72 and 96 hours. Conclusion These results indicate that SLPI-producing cells may assist mast cell migration and that the regulation of SLPI release and/or consumption by mast cells requires interaction between these cell types. Therefore, a "local relationship" between mast cells and airway epithelial cells might be an important step in the inflammatory response.
Subject headings
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Cancer och onkologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Cancer and Oncology (hsv//eng)
Publication and Content Type
- art (subject category)
- ref (subject category)
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