Sensitization of non-small cell lung cancer cells to cisplatin by naturally occurring isothiocyanates.

Sensitization of non-small cell lung cancer cells to cisplatin by naturally occurring isothiocyanates.
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DOI:
10.1021/tx100187f
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发表时间:
2010-08-16
影响因子:
4.1
通讯作者:
Chung, Fung-Lung
Chung, Fung-Lung
中科院分区:
医学3区
文献类型:
--
作者:
Di Pasqua, Anthony J.;Hong, Charles;Wu, Mona Y.;McCracken, Erin;Wang, Xiantao;Mi, Lixin;Chung, Fung-Lung

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我们发现,天然存在的异硫氰酸酯(ITCs)敏感的人非小细胞肺癌细胞顺铂。此外,ITC侧链部分的结构对于敏化是重要的。在NCI-H596细胞中,20 μM异硫氰酸苄酯(BITC)和异硫氰酸苯乙酯(PEITC)可增强不同浓度顺铂的疗效,但萝卜硫素(SFN)不能。将BITC和PEITC的浓度降低至10 μM仍允许细胞对顺铂敏化。细胞铂积累和DNA铂化都不能解释这种增加的细胞毒性。BITC和PEITC消耗β-微管蛋白,但SFN不消耗;这与致敏相关并且可能对致敏重要。
We show that naturally occurring isothiocyanates (ITCs) sensitize human non-small cell lung cancer cells to cisplatin. Moreover, structure of the ITC side chain moiety is important for sensitization. In NCI-H596 cells, 20 μM benzyl isothiocyanate (BITC) and phenethyl isothiocyanate (PEITC) enhance the efficacy of various concentrations of cisplatin, but sulforaphane (SFN) does not. Reducing the concentration of BITC and PEITC to 10 μM still allows for sensitization of cells to cisplatin. Neither cellular platinum accumulation nor DNA-platination account for this increased cytotoxicity. BITC and PEITC deplete β-tubulin, but SFN does not; this correlates with and may be important for sensitization.
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