scholarly journals The in vivo immunomodulatory effect of recombinant tumour necrosis factor-alpha in guinea pigs vaccinated with Mycobacterium bovis bacille Calmette-Guérin

2011 ◽  
Vol 165 (1) ◽  
pp. 110-120 ◽  
Author(s):  
J. C. Kramp ◽  
D. N. McMurray ◽  
C. Formichella ◽  
A. Jeevan
Keyword(s):  
Tumour Necrosis Factor ◽  
Mycobacterium Bovis ◽  
Guinea Pigs ◽  
Tumour Necrosis ◽  
Tumour Necrosis Factor Alpha ◽  
Bacille Calmette Guerin ◽  
Necrosis Factor Alpha ◽  
Factor Alpha ◽  
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.

Sign in / Sign up

Export Citation Format

Share Document