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RISS 인기검색어
- 검색키워드
- 저자 : Venkitasamy, B. (검색결과 1 건)
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Differential sensitivity of Madin-Darby canine kidney (MDCK) cells to epinephrine
Muthuraman, P.,Nagajyothi, P. C.,Chandrasekaran, M.,Enkhtaivan, G.,Venkitasamy, B.,Kim, D. H.,Cho, M.,Shim, J. Springer Science + Business Media 2016 The journal of nutrition, health & aging Vol.20 No.5
<P>Catecholamines regulate a variety of cellular functions in the mammalian kidney. The present study was aimed to investigate the differential sensitivity of Madin-Darby Kidney Cells (MDCK cells) to epinephrine in a dose-dependent manner. The loss of adhesion and altered cell shape were observed in MDCK cells. The presence of apoptosis and necrosis were studied by the fluorescence microscope and Confocal Laser Scanning Microscope (CLSM). Scanning Electron Microscope (SEM) analysis showed several surface microvilli, and cells were rounded having ruffled and crenated surface. Agarose gel electrophoresis study showed the presence of smearing, which further confirms the occurrence of necrosis. The fluorescence staining study showed the increased reactive oxygen species (ROS) level. Up-regulation of p53, bax, and caspase 3 mRNA expressions was evidenced by quantitative PCR (qPCR). Caspase 3 activity was also increased in epinephrine treated cells. Our experimental results do not imply that the epinephrine should not be used in the clinical treatments. However, our results add a research note of caution on the possible cytotoxic effect of maximal doses of epinephrine over a prolonged time.</P>
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