Dual mechanisms of 9-beta-D-arabinofuranosylguanine resistance in CEM T-lymphoblast leukemia cells.
Dual mechanisms of 9-beta-D-arabinofuranosylguanine resistance in CEM T-lymphoblast leukemia cells.
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CEM T 淋巴细胞白血病细胞中 9-β-D-阿拉伯呋喃鸟嘌呤抗性的双重机制。
DOI:
10.1006/bbrc.2001.5124
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发表时间:
2001
影响因子:
3.1
通讯作者:
A. Karlsson
中科院分区:
文献类型:
--
作者:
S. Curbo;C. Zhu;M. Johansson;J. Balzarini;A. Karlsson
The guanine nucleoside analog araG is selectively toxic to T-lymphoblasts and has recently shown promise in treatment of lymphoid malignancies of T-cell origin. The molecular mechanism of this tissue-selective cytotoxicity is, however, yet unclear. AraG is phosphorylated, and thereby pharmacologically activated, by the mitochondrial deoxguanosine kinase and the cytosolic/nuclear deoxycytidine kinase. We have recently shown that araG is predominantly incorporated into mitochondrial DNA of cancer cell lines, which suggests a role of mitochondria as its pharmacological target. In the present study, we have generated araG-resistant CEM T-lymphoblast cell lines and show that araG resistance may occur by two separate molecular mechanisms that can occur sequentially. The first mechanism is associated with a decrease of araG incorporation into mitochondrial DNA, and the second event is associated with loss of dCK activity.
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DOI:
10.1073/pnas.88.4.1531
发表时间:
1991-02-01
影响因子:
11.1
作者:
CHOTTINER, EG;SHEWACH, DS;MITCHELL, BS
通讯作者:
MITCHELL, BS
影响因子:
11.2
作者:
J. Mackey;R. Mani;M. Selner;D. Mowles;J. Young;J. A. Belt;C. R. Crawford;C. Cass
通讯作者:
J. Mackey;R. Mani;M. Selner;D. Mowles;J. Young;J. A. Belt;C. R. Crawford;C. Cass
影响因子:
11.2
作者:
Shewach,DS;Daddona,PE;Ashcraft,E;Mitchell,BS
通讯作者:
Mitchell,BS
影响因子:
11.2
作者:
Verhoef,V;Fridland,A
通讯作者:
Fridland,A
DOI:
--
发表时间:
1999
期刊:
Cancer research.
影响因子:
--
作者:
RodriguezJr,CO;Gandhi,V
通讯作者:
Gandhi,V