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首页> 外文期刊>Cell biology international. >Bufalin induces apoptosis and autophagy via the Ca2+/CaMKKβ/AMPK/Beclin1 signaling pathway in osteosarcoma cells
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Bufalin induces apoptosis and autophagy via the Ca2+/CaMKKβ/AMPK/Beclin1 signaling pathway in osteosarcoma cells

机译：Bufalin induces apoptosis and autophagy via the Ca2+/CaMKKβ/AMPK/Beclin1 signaling pathway in osteosarcoma cells

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摘要

Abstract Bufalin, a major cardiotonic compound of the traditional Chinese medicine Chanshu has been used for cancer treatment for several years. However, the molecular mechanisms of Bufalin‐induced autophagy in osteosarcoma (OS) is not fully understood. In the present study, it was shown that Bufalin induced crosstalk between apoptosis and autophagy, which resulted in OS cell death. Mechanistically, Bufalin induced autophagy by increased the ratio of microtubule‐associated protein 1A/1B‐light chain 3 (LC3)‐II/LC3‐I, and inducing apoptosis via the caspase‐dependent pathway. Inhibition of autophagy promoted Bufalin‐induced cell death. In contrast, suppression of apoptosis enhanced Bufalin‐induced autophagy. In addition, it was found that Bufalin activated the Ca2+/calmodulin‐dependent protein kinase β/AMPK/Beclin1 pathway, which resulted in induction of autophagy. These findings provide a mechanistic understanding of the means by which Bufalin mediates autophagy and apoptosis in OS cells.

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