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Antitumor effect of snake venoms
Universidade Estadual Paulista (UNESP)
The search for biological antitumor agents has been pursued for over half a century. Snake venom has been shown to possess a wide spectrum of biological activities. The objectives of the present review are to evaluate the existing controversies on this subject published in a number of papers and to propose probable explanations for the phenomena observed. We reported our results obtained in a study, in which we evaluated the action of the venoms of Crotalus durissus terrificus and Bothrops jararaca on Ehrlich ascites tumor cells. We noticed an important antitumor effect, mainly with Bothrops jararaca venom, as well as an increase in the functional activity of macrophages. We also observed an increase in the number of mononuclear and polymorphonuclear cells with Bothrops jararaca venom. Considering these findings, we postulate that both Borhrops jararaca and Crotalus durissus terrificus venoms can act directly on tumor cells. In addition, we propose an indirect mechanism, based on the stimulation of the inflammatory response, to inhibit tumor growth and to promote its rejection.
Issue Date: 
Journal of Venomous Animals and Toxins, v. 2, n. 2, p. 79-90, 1996.
Time Duration: 
  • Bothrops jararaca
  • Cancer
  • Crotalus durissus terrificus
  • Inflammation
  • Snakes
  • Venom
  • antineoplastic agent
  • batroxobin
  • interleukin 6
  • snake venom
  • antineoplastic activity
  • cancer inhibition
  • cytolysis
  • drug mechanism
  • ehrlich ascites tumor cell
  • human
  • inflammation
  • leukocyte count
  • lymphokine activated killer cell
  • macrophage
  • mononuclear cell
  • nonhuman
  • polymorphonuclear cell
  • review
  • sarcoma
  • snakebite
  • tumor cell
Access Rights: 
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Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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