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Bothropoides pauloensis venom effects on isolated perfused kidney and cultured renal tubular epithelial cells

2015; Elsevier BV; Volume: 108; Linguagem: Inglês

10.1016/j.toxicon.2015.09.031

1879-3150

Aline Diogo Marinho, Isabel Cristina Oliveira de Morais, Dânya Bandeira Lima, Antônio Rafael Coelho Jorge, Roberta Jeane Bezerra Jorge, Ramon Róseo Paula Pessoa Bezerra de Menezes, Clarissa Perdigão Mello, Gustavo J.S. Pereira, João Alison de Moraes Silveira, Marcos Hikari Toyama, Mar Orzáez, Alice Maria Costa Martins, Helena Serra Azul Monteiro,

Mosquito-borne diseases and control

Snake envenomation (Bothrops genus) is common in tropical countries and acute kidney injury is one of the complications observed in Bothrops snakebite with relevant morbidity and mortality. Here, we showed that Bothropoides pauloensis venom (BpV) decreased cell viability (IC50 of 7.5 μg/mL). Flow cytometry with annexin V and propidium iodide showed that cell death occurred predominantly by apoptosis and late apoptosis, through caspases 3 and 7 activation, mitochondrial membrane potential collapse and ROS overproduction. BpV reduced perfusion pressure, renal vascular resistance, urinary flow, glomerular filtration rate, percentage of sodium, chloride or potassium tubular transportation. These findings demonstrated that BpV cytotoxicity on renal epithelial cells might be responsible for the nephrotoxicity observed in isolated kidney.