Quantification of cysteine hydropersulfide with a ratiometric near-infrared fluorescent probe based on selenium-sulfur exchange reaction.
Quantification of cysteine hydropersulfide with a ratiometric near-infrared fluorescent probe based on selenium-sulfur exchange reaction.
复制标题
基于硒硫交换反应的比例近红外荧光探针定量半胱氨酸氢过硫化物
DOI:
10.1039/c6sc00838k
复制
发表时间:
2016-08-01
期刊:
影响因子:
8.4
通讯作者:
Chen L
中科院分区:
文献类型:
--
作者:
Han X;Yu F;Song X;Chen L
A ratiometric near-infrared fluorescent probe based on a selenium–sulfur exchange reaction to quantify cysteine hydropersulfide in living cells and hepatic carcinoma rats. Cysteine hydropersulfide (Cys-SSH) plays primary roles in the synthesis of sulfur-containing cofactors, regulation of cellular signaling, activation or inactivation of enzyme activities, and modulation of cellular redox milieu. However, its biofunctions need to be further addressed due to the fact that many issues remain to be clarified. Herein, we conceive a novel ratiometric near-infrared fluorescent probe Cy-Dise for the sensitive and selective detection of Cys-SSH in living cells and in vivo for the first time. Cy-Dise is composed of three moieties: bis(2-hydroxyethyl) diselenide, heptamethine cyanine, and d-galactose. Cy-Dise exhibits a satisfactory linear ratio response to Cys-SSH via a selenium–sulfur exchange reaction in the range of 0–12 μM Cys-SSH. The experimental detection limit is determined to be 0.12 μM. The results of ratio imaging analyses confirm the qualitative and quantitative detection capabilities of Cy-Dise in HepG2 cells, HL-7702 cells, and primary hepatocytes. The level changes of Cys-SSH in cells stimulated by some related reagents are also observed. The probe is also suitable for deep tissue ratio imaging. Organ targeting tests with Cy-Dise in normal Spraque-Dawley (SD) rats and Walker-256 tumor SD rats verify its predominant localization in the liver. The probe is promising for revealing the roles of Cys-SSH in physiological and pathological processes.
登录
查看更多内容
影响因子:
8.4
作者:
Hu JJ;Wong NK;Lu MY;Chen X;Ye S;Zhao AQ;Gao P;Yi-Tsun Kao R;Shen J;Yang D
通讯作者:
Yang D
影响因子:
46.2
作者:
Lee MH;Kim JS;Sessler JL
通讯作者:
Sessler JL
影响因子:
8.4
作者:
Gong YJ;Zhang XB;Mao GJ;Su L;Meng HM;Tan W;Feng S;Zhang G
通讯作者:
Zhang G
DOI:
10.1002/anie.201506887
发表时间:
2015-11-16
期刊:
Angewandte Chemie (International ed. in English)
影响因子:
--
作者:
Chen W;Rosser EW;Matsunaga T;Pacheco A;Akaike T;Xian M
通讯作者:
Xian M
DOI:
10.1073/pnas.1310583110
发表时间:
2014-01-07
影响因子:
11.1
作者:
Chyan, Wen;Zhang, Daniel Y.;Radford, Robert J.
通讯作者:
Radford, Robert J.