Noninvasive imaging of sialyltransferase activity in living cells by chemoselective recognition.
Noninvasive imaging of sialyltransferase activity in living cells by chemoselective recognition.
复制标题
通过化学选择性识别对活细胞中唾液酸转移酶活性进行无创成像
DOI:
10.1038/srep10947
复制
发表时间:
2015-06-05
影响因子:
4.6
通讯作者:
Ju H
中科院分区:
文献类型:
--
作者:
Bao L;Ding L;Yang M;Ju H
To elucidate the biological and pathological functions of sialyltransferases (STs), intracellular ST activity evaluation is necessary. Focusing on the lack of noninvasive methods for obtaining the dynamic activity information, this work designs a sensing platform for in situ FRET imaging of intracellular ST activity and tracing of sialylation process. The system uses tetramethylrhodamine isothiocyanate labeled asialofetuin (TRITC-AF) as a ST substrate and fluorescein isothiocyanate labeled 3-aminophenylboronic acid (FITC-APBA) as the chemoselective recognition probe of sialylation product, both of which are encapsulated in a liposome vesicle for cellular delivery. The recognition of FITC-APBA to sialylated TRITC-AF leads to the FRET signal that is analyzed by FRET efficiency images. This strategy has been used to evaluate the correlation of ST activity with malignancy and cell surface sialylation, and the sialylation inhibition activity of inhibitors. This work provides a powerful noninvasive tool for glycan biosynthesis mechanism research, cancer diagnostics and drug development.
登录
查看更多内容
影响因子:
4
作者:
Parker, Randy B.;Kohler, Jennifer J.
通讯作者:
Kohler, Jennifer J.
影响因子:
4.2
作者:
ISHII, S;VOLPE, JJ
通讯作者:
VOLPE, JJ
影响因子:
15
作者:
Lin, Wei;Du, Yifei;Chen, Xing
通讯作者:
Chen, Xing
影响因子:
9.7
作者:
Pinho, Sandra;Marcos, Nuno T.;Reis, Celso A.
通讯作者:
Reis, Celso A.
影响因子:
8
作者:
Hashiramoto, A.;Mizukami, H.;Yamashita, T.
通讯作者:
Yamashita, T.