Optical sensor revealed abnormal nuclease spatial activity on cancer cell membrane
Optical sensor revealed abnormal nuclease spatial activity on cancer cell membrane
复制标题
光学传感器显示癌细胞膜上异常的核酸酶空间活性
DOI:
10.1002/jbio.201800351
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发表时间:
2019
影响因子:
2.8
通讯作者:
Wang, Xuefeng
中科院分区:
文献类型:
--
作者:
Wang, Yongliang;Zhao, Yuanchang;Sarkar, Anwesha;Wang, Xuefeng
Nucleases are important enzymes that cleave nucleic acids and play critical roles in DNA repair, immune defense and potentially in cancer invasion. However, their spatial dynamics at subcellular level is much less studied. Here, we developed a surface‐tethered nuclease sensor (SNS) which directly converts membrane‐bound nuclease (MN) activity to fluorescent signal, therefore, mapping MN activity on cell adhesion sites with high resolution and sensitivity. With SNS, we studied MN activity on the ventral membrane of cancer cells, where MN activity initially occurs in punctate regions and advances in a coral‐shaped pattern. In six tested cell‐lines, the MN activity levels in cancer cells are significantly higher than those in non‐cancer cells. We then tested SNS as a sensitive approach to detect cancer cells at single cell level. Single breast cancer cells were successfully detected from thousands of adherent non‐cancer cells and from millions of non‐adherent blood cells.
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影响因子:
6.6
作者:
Beaty, Brian T.;Condeelis, John
通讯作者:
Condeelis, John
影响因子:
17.1
作者:
Chen, Weiqiang;Weng, Shinuo;Zhang, Feng;Allen, Steven;Li, Xiang;Bao, Liwei;Lam, Raymond H. W.;Macoska, Jill A.;Merajver, Sofia D.;Fu, Jianping
通讯作者:
Fu, Jianping
DOI:
--
发表时间:
2007
期刊:
J Biol Chem (In press)
影响因子:
--
作者:
Koga;T et al.;Shiokawa D. et al.;Shiokawa D. et al.
通讯作者:
Shiokawa D. et al.
影响因子:
14.9
作者:
Marras, SAE;Kramer, FR;Tyagi, S
通讯作者:
Tyagi, S
DOI:
10.1016/s0021-9258(19)69608-0
发表时间:
1981
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
M. Perry;R. Chalkley
通讯作者:
R. Chalkley