Neutrophil interaction with activated endothelial cells (EC) is required for transmigration. We examined consequences of this interaction on NETosis. Co-culture of activated EC with neutrophils induced neutrophil extracellular trap (NET) formation, which was partially dependent on production of IL-8 by activated EC. Extended neutophil/EC co-culture resulted in EC damage, which could be abrogated by inclusion of either diphenyleneiodonium to inhibit the NAPDH oxidase pathway required for NETosis, or DNAse to disrupt NETs. These findings offer new insight into mechanisms whereby NETs trigger damage to the endothelium in sepsis, small vessel vasculitis and possibly the villous trophoblast in preeclampsia. (C) 2010 Federation of European Biochemical Societies. Published by Elsevier B.V. All rights reserved.
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Univ Fed Rio de Janeiro, Dept Imunol, Inst Microbiol Prof Paulo de Goes, BR-21941902 Rio De Janeiro, BrazilUniv Fed Rio de Janeiro, Dept Imunol, Inst Microbiol Prof Paulo de Goes, BR-21941902 Rio De Janeiro, Brazil
Guimaraes-Costa, Anderson B.
;
Nascimento, Michelle T. C.
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Univ Fed Rio de Janeiro, Dept Imunol, Inst Microbiol Prof Paulo de Goes, BR-21941902 Rio De Janeiro, BrazilUniv Fed Rio de Janeiro, Dept Imunol, Inst Microbiol Prof Paulo de Goes, BR-21941902 Rio De Janeiro, Brazil
Nascimento, Michelle T. C.
;
Froment, Giselle S.
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Univ Fed Rio de Janeiro, Dept Imunol, Inst Microbiol Prof Paulo de Goes, BR-21941902 Rio De Janeiro, BrazilUniv Fed Rio de Janeiro, Dept Imunol, Inst Microbiol Prof Paulo de Goes, BR-21941902 Rio De Janeiro, Brazil
Froment, Giselle S.
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Soares, Rodrigo P. P.
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Fundacao Oswaldo Cruz, Ctr Pesquisas Rene Rachou, Lab Entomol Med, BR-30190002 Belo Horizonte, MG, BrazilUniv Fed Rio de Janeiro, Dept Imunol, Inst Microbiol Prof Paulo de Goes, BR-21941902 Rio De Janeiro, Brazil
Soares, Rodrigo P. P.
;
Morgado, Fernanda N.
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Fundacao Oswaldo Cruz, Lab Imunoparasitol, BR-21045900 Rio De Janeiro, BrazilUniv Fed Rio de Janeiro, Dept Imunol, Inst Microbiol Prof Paulo de Goes, BR-21941902 Rio De Janeiro, Brazil
Morgado, Fernanda N.
;
Conceicao-Silva, Fatima
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Fundacao Oswaldo Cruz, Lab Imunoparasitol, BR-21045900 Rio De Janeiro, BrazilUniv Fed Rio de Janeiro, Dept Imunol, Inst Microbiol Prof Paulo de Goes, BR-21941902 Rio De Janeiro, Brazil
Conceicao-Silva, Fatima
;
Saraiva, Elvira M.
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Univ Fed Rio de Janeiro, Dept Imunol, Inst Microbiol Prof Paulo de Goes, BR-21941902 Rio De Janeiro, BrazilUniv Fed Rio de Janeiro, Dept Imunol, Inst Microbiol Prof Paulo de Goes, BR-21941902 Rio De Janeiro, Brazil
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Univ Fed Rio de Janeiro, Dept Imunol, Inst Microbiol Prof Paulo de Goes, BR-21941902 Rio De Janeiro, BrazilUniv Fed Rio de Janeiro, Dept Imunol, Inst Microbiol Prof Paulo de Goes, BR-21941902 Rio De Janeiro, Brazil
Guimaraes-Costa, Anderson B.
;
Nascimento, Michelle T. C.
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Univ Fed Rio de Janeiro, Dept Imunol, Inst Microbiol Prof Paulo de Goes, BR-21941902 Rio De Janeiro, BrazilUniv Fed Rio de Janeiro, Dept Imunol, Inst Microbiol Prof Paulo de Goes, BR-21941902 Rio De Janeiro, Brazil
Nascimento, Michelle T. C.
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Froment, Giselle S.
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Univ Fed Rio de Janeiro, Dept Imunol, Inst Microbiol Prof Paulo de Goes, BR-21941902 Rio De Janeiro, BrazilUniv Fed Rio de Janeiro, Dept Imunol, Inst Microbiol Prof Paulo de Goes, BR-21941902 Rio De Janeiro, Brazil
Froment, Giselle S.
;
Soares, Rodrigo P. P.
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Fundacao Oswaldo Cruz, Ctr Pesquisas Rene Rachou, Lab Entomol Med, BR-30190002 Belo Horizonte, MG, BrazilUniv Fed Rio de Janeiro, Dept Imunol, Inst Microbiol Prof Paulo de Goes, BR-21941902 Rio De Janeiro, Brazil
Soares, Rodrigo P. P.
;
Morgado, Fernanda N.
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Fundacao Oswaldo Cruz, Lab Imunoparasitol, BR-21045900 Rio De Janeiro, BrazilUniv Fed Rio de Janeiro, Dept Imunol, Inst Microbiol Prof Paulo de Goes, BR-21941902 Rio De Janeiro, Brazil
Morgado, Fernanda N.
;
Conceicao-Silva, Fatima
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Fundacao Oswaldo Cruz, Lab Imunoparasitol, BR-21045900 Rio De Janeiro, BrazilUniv Fed Rio de Janeiro, Dept Imunol, Inst Microbiol Prof Paulo de Goes, BR-21941902 Rio De Janeiro, Brazil
Conceicao-Silva, Fatima
;
Saraiva, Elvira M.
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Univ Fed Rio de Janeiro, Dept Imunol, Inst Microbiol Prof Paulo de Goes, BR-21941902 Rio De Janeiro, BrazilUniv Fed Rio de Janeiro, Dept Imunol, Inst Microbiol Prof Paulo de Goes, BR-21941902 Rio De Janeiro, Brazil