Crotalus durissus collilineatus venom induces tnf-α and il-10 production in human peripheral blood mononuclear cells
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2014
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Snake venom has been the subject of numerous studies in an attempt to find properties and biological effects that may be beneficial
to man. In this study we evaluated in vitro the effects of Crotalus durissus terrificus (Cdt) and Crotalus durissus collilineatus (Cdc)
venom in human peripheral blood mononuclear cells (PBMCs). At 24 h, a significant decrease of viable cells was observed in cells
stimulated with the Cdc venom at 0.0005 mg/mL and 0.005 mg/mL compared to the negative control. At 48 h, a significant decrease
of viable cells was observed only in cells stimulated with Cdc venom at 0.005 mg/mL. A significant increase of TNF-α and IL-10 was
detected 48 hours after culture of PBMC with Cdc, but not with Cdt venom. The expression of CD69 and PD1 (programmed death-
1), activation and regulatory cell markers, on CD8+ and CD8− T cells did not change in the presence of Cdt and Cdc venom. Our
results suggest the presence of proinflammatory and anti-inflammatory components in the Cdc venom. Further analysis should be
done to identify those Cdc venom components as it has been done for the Cdt venom by other authors, indicating that modulatory
components are found in the venom of different species of Crotalus snakes.
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RIBEIRO, Camila Bastos; SANTOS, Jéssica Cristina dos; SILVA, Jacyelle Medeiros; GODOI, Pedro Henrique Silva de; MAGALHÃES, Marta Regina; SPADAFORA-FERREIRA, Mônica; FONSECA, Simone Gonçalves; FRIMER, Iirmtraut Araci Hoffman. Crotalus durissus collilineatus venom induces tnf-α and il-10 production in human peripheral blood mononuclear cells. ISRN Inflammation, Rockville, v. 2014, p. 1-7, 2014.