Table of Contents Author Guidelines Submit a Manuscript
Mediators of Inflammation
Volume 7, Issue 5, Pages 339-346
http://dx.doi.org/10.1080/09629359890866

Local inflammation, lethality and cytokine release in mice injected with Bothrops atrox venom

1Laboratório de Imunoparasitologia, SP, Brazil
2Laboratório de Biologia do Reconhecer, Centro de Biociências e Biotecnologia, Universidade Estadual do Norte Fluminense, Av Alberto Lamego 2000, Campos dos Goytacazes, RJ CEP 28015–620, Brazil
3Laboratório de Imunoquimica do Instituto Butantan São Paulo, SP, Brazil

Copyright © 1998 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

We have provided evidence that: (a) lethality of mice to crude Bothrops venom varies according the isogenic strain (A/J > C57Bl/6 > A/Sn > BALB/c > C3H/ HePas > DBA/2 > C3H/He); (b)BALB/c mice (LD50=100.0 μg) were injected i.p. with 50 μg of venom produced IL-6, IL-10, INF-γ, TNF-α and NO in the serum. In vitro the cells from the mice injected and challenged with the venom only released IL-10 while peritoneal macrophages released IL-10, INF-γ and less amounts of IL-6; (c) establishment of local inflammation and necrosis induced by the venom, coincides with the peaks of TNF-α, IFN-γ and NO and the damage was neutralized when the venom was incubated with a monoclonal antibody against a 60 kDa haemorrhagic factor. These results suggest that susceptibility to Bothrops a trox venom is genetically dependent but MHC independent; that IL-6, IL10, TNF-α, IFN-γ and NO can be involved in the mediation of tissue damage; and that the major venom component inducers of the lesions are haemorrhagins.