scholarly journals The pan-chemokine inhibitor NR58-3.14.3 abolishes tumour necrosis factor-alpha accumulation and leucocyte recruitment induced by lipopolysaccharide in vivo

Immunology ◽  
2001 ◽  
Vol 103 (2) ◽  
pp. 244-254 ◽  
Author(s):  
Jill Reckless ◽  
Lauren M. Tatalick ◽  
David J. Grainger
Keyword(s):  
Tumour Necrosis Factor ◽  
Tumour Necrosis ◽  
Tumour Necrosis Factor Alpha ◽  
Necrosis Factor Alpha ◽  
Factor Alpha ◽  
Leucocyte Recruitment ◽  
Necrosis Factor

scholarly journals Tumour necrosis factor-alpha and interleukin-8 inhibit neutrophil migration in vitro and in vivo

1992 ◽  
Vol 1 (6) ◽  
pp. 397-401 ◽  
Author(s):  
F. Q. Cunha ◽  
W. M. S. Cunha Tamashiro
Keyword(s):  
Tumour Necrosis Factor ◽  
Tumour Necrosis ◽  
Neutrophil Migration ◽  
Tumour Necrosis Factor Alpha ◽  
Interleukin 8 ◽  
Human Neutrophils ◽  
Necrosis Factor Alpha ◽  
Factor Alpha ◽  
Necrosis Factor

Pretreatment of human neutrophils with recombinant tumour necrosis factor-alpha (rTNF-α) and/or interleukin-8 (rIL-8), but not with either transforming growth factor-beta, interleukin-6 or interferon-gamma, rendered these cells less responsive to FMLP, in microchemotaxis assays. This inhibitory effect was dose dependent and more powerful when neutrophils were pretreated with a mixture of both cytokines. Intravenous injection of human rIL-8 (hrIL-8) and/or murine rTNF-α (mrTNF-α) also significantly reduced in vivo neutrophil migration into peritoneal cavities of rats stimulated with carrageenan. These data suggest that the defect in neutrophil migration during septicaemia or endotoxaemia may be the result of the continuous release of IL-8 and TNF-α into the circulation. Thus, either the selective control or blockade of releasing of these cytokines as well as of its effects on neutrophils may be clinically useful in reestablishing the cell defence mechanisms.

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