Naphthalimide-rhodamine based fluorescent probe for ratiometric sensing of cellular pH

Naphthalimide-rhodamine based fluorescent probe for ratiometric sensing of cellular pH
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用于细胞 pH 值比例传感的萘酰亚胺-罗丹明荧光探针

DOI:
10.1016/j.cclet.2017.09.014
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发表时间:
2017-10
影响因子:
9.1
通讯作者:
Shiguo Sun
Shiguo Sun
中科院分区:
化学1区
文献类型:
--
作者:
Jia Wen;Pengyi Xia;Ziming Zheng;Yongqian Xu;Hongjuan Li;Fengyu Liu;Shiguo Sun

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癌细胞中溶酶体的pH值略低于正常细胞中的pH值,可用于区分癌细胞与正常细胞。据此,设计并合成了一种pl(a)为4.20的基于萘酰亚胺-罗丹明的荧光探针(以下简称RBN),用于通过荧光共振能量转移(FRET)对细胞pH值进行比例传感,该探针可以通过比例荧光强度(I-577/I-540)精确响应不同的pH值。 RBN可以根据不同的荧光响应来区分癌细胞和正常细胞,特别是RBN表现出优异的水溶性和低细胞毒性,所有这些对于癌症诊断和治疗的潜在应用具有重要意义。 (C) 2017 中国化学会、中国医学科学院药物研究所。
The pH values of lysosomes in cancer cells is slightly lower than that in normal cells, which can be used to distinguish cancer cells from normal cells. According to this, a naphthalimide-rhodamine based fluorescent probe (hereafter referred to as RBN) with a pl(a) of 4.20 was designed and synthesized for ratiometric sensing of cellular pH via fluorescence resonance energy transfer (FRET), which can respond to different pH precisely through ratiometric fluorescence intensity (I-577/I-540). RBN can be employed to distinguish cancer cells from normal cells on the basis of different fluorescent response, in particular, RBN showed excellent water solubility and low cell toxicity, all these are quite significant for potential application in cancer diagnose and therapy. (C) 2017 Chinese Chemical Society and Institute of Materia Medica, Chinese Academy of Medical Sciences.
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