期刊
TUMOR BIOLOGY
卷 37, 期 12, 页码 15467-15476出版社
SAGE PUBLICATIONS LTD
DOI: 10.1007/s13277-016-5353-y
关键词
Ca2+; IP(3)Rs; Autophagic regulation; Apoptosis; Mitochondria
类别
Autophagy is an evolutionarily conserved lysosomal catabolic process used as an internal engine in response to nutrient starvation or metabolic stress. A number of protein complexes and an intricate network of stress signaling cascades impinge on the regulation of autophagy; the mammalian target of rapamycin serves as a canonical player. Ca2+, as a major intracellular second messenger, regulates multiple physiological and pathological functions. Although significant information is already well-established about the role of Ca2+ in apoptosis, its role in autophagy has been recently determined and is poorly understood. Intracellular Ca2+ positively and negatively affects autophagy. In this review, evidence for both views and the interplay of Ca2+ between autophagy and apoptosis induction are discussed. The available data revealed the bidirectional role of Ca2+ in the regulation of autophagy. Moreover, the data also indicated that this role probably depends on the context of time, space, Ca2+ source, and cell state, thus either preventing or enhancing autophagy.
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