Effects of Tumour Necrosis Factor Alpha and Interleukin-1 Alpha and Beta on Human Neutrophil Migration, Respiratory Burst and Degranulation

1988 ◽  
Vol 86 (1) ◽  
pp. 82-91 ◽  
Author(s):  
Antonio Ferrante ◽  
Madhuri Nandoskar ◽  
Alfred Walz ◽  
David H.B. Goh ◽  
Ingeborg C. Kowanko
1992 ◽  
Vol 1 (6) ◽  
pp. 397-401 ◽  
Author(s):  
F. Q. Cunha ◽  
W. M. S. Cunha Tamashiro

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.


Sign in / Sign up

Export Citation Format

Share Document