Intracellular ATP concentration contributes to the cytotoxic and cytoprotective effects of adenosine.
Intracellular ATP concentration contributes to the cytotoxic and cytoprotective effects of adenosine.
复制标题
细胞内 ATP 浓度有助于腺苷的细胞毒性和细胞保护作用。
DOI:
10.1371/journal.pone.0076731
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发表时间:
2013
期刊:
影响因子:
3.7
通讯作者:
Liu J
中科院分区:
文献类型:
--
作者:
Li S;Li X;Guo H;Liu S;Huang H;Liu N;Yang C;Tang P;Liu J
Extracellular adenosine (Ade) interacts with cells by two pathways: by activating cell surface receptors at nanomolar/micromolar concentrations; and by interfering with the homeostasis of the intracellular nucleotide pool at millimolar concentrations. Ade shows both cytotoxic and cytoprotective effects; however, the underlying mechanisms remain unclear. In the present study, the effects of adenosine-mediated ATP on cell viability were investigated. Adenosine treatment was found to be cytoprotective in the low intracellular ATP state, but cytotoxic under the normal ATP state. Adenosine-mediated cytotoxicity and cytoprotection rely on adenosine-derived ATP formation, but not via the adenosine receptor pathway. Ade enhanced proteasome inhibition-induced cell death mediated by ATP generation. These data provide a new pathway by which adenosine exerts dual biological effects on cell viability, suggesting an important role for adenosine as an ATP precursor besides the adenosine receptor pathway.
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影响因子:
3.7
作者:
Huang H;Liu N;Guo H;Liao S;Li X;Yang C;Liu S;Song W;Liu C;Guan L;Li B;Xu L;Zhang C;Wang X;Dou QP;Liu J
通讯作者:
Liu J
影响因子:
6.5
作者:
Merighi, S;Mirandola, P;Borea, PA
通讯作者:
Borea, PA
影响因子:
--
作者:
ETHIER, MF;CHANDER, V;DOBSON, JG
通讯作者:
DOBSON, JG
影响因子:
64.5
作者:
Hsu, Peggy P.;Sabatini, David M.
通讯作者:
Sabatini, David M.
影响因子:
44.1
作者:
通讯作者:
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