A cell permeable NPE caged ADP-ribose for studying TRPM2.
A cell permeable NPE caged ADP-ribose for studying TRPM2.
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用于研究 TRPM2 的细胞渗透性 NPE 笼状 ADP-核糖
DOI:
10.1371/journal.pone.0051028
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发表时间:
2012
期刊:
影响因子:
3.7
通讯作者:
Yue J
中科院分区:
文献类型:
--
作者:
Yu P;Wang Q;Zhang LH;Lee HC;Zhang L;Yue J
Transient potential receptor melastatin-2 (TRPM2) is a non-selective Ca2+-permeable cation channel of the TRPM channel subfamily and is mainly activated by intracellular adenosine diphosphate ribose (ADPR). Here we synthesized a 1-(2-nitrophenyl)ethyl caged ADPR (NPE-ADPR) and found that uncaging of NPE-ADPR efficiently stimulated Ca2+, Mg2+, and Zn2+ influx in a concentration-dependent manner in intact human Jurkat T-lymphocytes. The cation influx was inhibited by inhibitors or knockdown of TRPM2. Likewise, uncaging of NPE-ADPR markedly induced cation entry in HEK 293 cells that overexpress TRPM2. As expected, high temperature increased the ability of the photolyzed NPE-ADPR to induce cation entry, whereas acidic pH inhibited. Moreover, the absence of extracellular Ca2+ significantly inhibited Mg2+ and Zn2+ influx after uncaging NPE-ADPR. On the other hand, the absence of extracellular Na+ or Mg2+ had no effect on photolyzed NPE-ADPR induced Ca2+ entry. Taken together, our results indicated that NPE-ADPR is a cell permeable ADPR analogue that is useful for studying TRPM2-mediated cation entry in intact cells.
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影响因子:
4.8
作者:
Lambert, Sachar;Drews, Anna;Oberwinkler, Johannes
通讯作者:
Oberwinkler, Johannes
影响因子:
4
作者:
Perraud, AL;Schmitz, C;Scharenberg, AM
通讯作者:
Scharenberg, AM
DOI:
10.1097/mco.0b013e3283312956
发表时间:
2009-11-01
影响因子:
3.1
作者:
Prasad, Ananda S.
通讯作者:
Prasad, Ananda S.
DOI:
10.1007/978-94-007-0265-3_42
发表时间:
2011-01-01
期刊:
TRANSIENT RECEPTOR POTENTIAL CHANNELS
影响因子:
--
作者:
Islam, Md Shahidul
通讯作者:
Islam, Md Shahidul
影响因子:
64.8
作者:
Li, Feng-Yen;Chaigne-Delalande, Benjamin;Kanellopoulou, Chrysi;Davis, Jeremiah C.;Matthews, Helen F.;Douek, Daniel C.;Cohen, Jeffrey I.;Uzel, Gulbu;Su, Helen C.;Lenardo, Michael J.
通讯作者:
Lenardo, Michael J.