MATE-1 modulation by kinin B1 receptor enhances cisplatin efflux from renal cells

GR Estrela, F Wasinski, RJF Felizardo… - Molecular and cellular …, 2017 - Springer
Molecular and cellular biochemistry, 2017Springer
Cisplatin is a drug widely used in chemotherapy that frequently causes severe renal
dysfunction. Organic transporters have an important role to control the absorption and
excretion of cisplatin in renal cells. Deletion and blockage of kinin B1 receptor has already
been show to protect against cisplatin-induced acute kidney injury. To test whether it exerts
its protective function by modulating the organic transporters in kidney, we studied kinin B1
receptor knockout mice and treatment with a receptor antagonist at basal state and in …
Abstract
Cisplatin is a drug widely used in chemotherapy that frequently causes severe renal dysfunction. Organic transporters have an important role to control the absorption and excretion of cisplatin in renal cells. Deletion and blockage of kinin B1 receptor has already been show to protect against cisplatin-induced acute kidney injury. To test whether it exerts its protective function by modulating the organic transporters in kidney, we studied kinin B1 receptor knockout mice and treatment with a receptor antagonist at basal state and in presence of cisplatin. Cisplatin administration caused downregulation of renal organic transporters; in B1 receptor knockout mice, this downregulation of organic transporters in kidney was absent; and treatment by a B1 receptor antagonist attenuated the downregulation of the transporter MATE-1. Moreover, kinin B1 receptor deletion and blockage at basal state resulted in higher renal expression of MATE-1. Moreover we observed that kinin B1 receptor deletion and blockage result in less accumulation of platinum in renal tissue. Thus, we propose that B1 receptor deletion and blockage protect the kidney from cisplatin-induced acute kidney injury by upregulating the expression of MATE-1, thereby increasing the efflux of cisplatin from renal cells.
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