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Role of serum from asphyxiated neonates in the inducement of human renal tubular cell adhesion to neutrophils / 中国当代儿科杂志
Chinese Journal of Contemporary Pediatrics ; (12): 633-636, 2008.
Article Dans Chinois | WPRIM | ID: wpr-317373
ABSTRACT
<p><b>OBJECTIVE</b>To study the role of serum from asphyxiated neonates in the inducement of human renal proximal tubular epithelial cells (HK-2) adhesion to neutrophils and possible mechanisms.</p><p><b>METHODS</b>HK-2 cells were cultured randomly with 20% serum from neonates (1, 3, and 7 days after asphyxia), pyrrolidine dithiocarbamate (PDTC) or placebo. The activity of myeloperoxidase (MPO), an indicator of adhesion ability of HK-2 cells to neutrophils in suspensions, was detected by the biochemistry assay. Intercellular adhesion molecule-1 (ICAM-1) and nuclear factor-kappaB (NF-kappaB) of HK-2 cells were examined with the immunohistochemical staining.</p><p><b>RESULTS</b>The expression of MPO in the post-asphyxial 1-day serum treatment group were significantly higher than that in the PDTC treatment and the control groups as well as the post-asphyxial 3 and 7-day serum treatment groups (P<0.01). The expression of ICAM-1 and NF-kappaB in the post-asphyxial 1-day serum treatment group was also significantly higher than that in the other groups (P<0.01).</p><p><b>CONCLUSIONS</b>Serum from asphyxiated neonates can induce HK-2 cell adhesion to neutrophils, possibly through activating NF-kappaB and increasing the synthesis and expression of ICAM-1 on the surface of renal tubular epithelial cells.</p>
Sujets)
Texte intégral: Disponible Indice: WPRIM (Pacifique occidental) Sujet Principal: Anatomopathologie / Physiologie / Asphyxie néonatale / Sang / Adhérence cellulaire / Cellules cultivées / Facteur de transcription NF-kappa B / Molécule-1 d&apos;adhérence intercellulaire / Tubules rénaux / Métabolisme Type d'étude: Essai clinique contrôlé Limites du sujet: Humains / Nouveau-né langue: Chinois Texte intégral: Chinese Journal of Contemporary Pediatrics Année: 2008 Type: Article

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Texte intégral: Disponible Indice: WPRIM (Pacifique occidental) Sujet Principal: Anatomopathologie / Physiologie / Asphyxie néonatale / Sang / Adhérence cellulaire / Cellules cultivées / Facteur de transcription NF-kappa B / Molécule-1 d&apos;adhérence intercellulaire / Tubules rénaux / Métabolisme Type d'étude: Essai clinique contrôlé Limites du sujet: Humains / Nouveau-né langue: Chinois Texte intégral: Chinese Journal of Contemporary Pediatrics Année: 2008 Type: Article