Citation: Rong Hu, Sheng-Liang Li, Hao-Tian Bai, Yun-Xia Wang, Li-Bing Liu, Feng-Ting Lv, Shu Wang. Regulation of oxidative stress inside living cells through polythiophene derivatives[J]. Chinese Chemical Letters, ;2016, 27(4): 545-549. shu

Regulation of oxidative stress inside living cells through polythiophene derivatives

Beijing National Laboratory for Molecular Science, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China

Received Date: 22 January 2016
Revised Date: 29 January 2016

Fund Project: The authors are grateful to the National Natural Science Foundation of China (Nos. 21473220, 21373243, 21473221).

Oxidative stress stimulated by angiotensin II (Ang II) plays an important role in the progression of inflammation and cardiovascular disease. In this work, polythiophene modified with dihydropyridine groups (PTDHP) realized the control of oxidative stress induced by Angiotensin II stimulation in living cells, by inhibiting the activity of NADPH oxidase via DHP groups. Upon light irradiation, the PTDHP could sensitize surrounding oxygen molecules to generate reactive oxygen species (ROS). The generated ROS oxidized the pendant DHP of polythiophene into pyridine group, which inactivated the control ability of DHP to oxidative stress in living cells. Thus, PTDHP can not only control the intracellular oxidative stress effectively and suppress ROS to some degree in dark, but also regulate its anti-oxidative effect under light irradiation.
- Angiotensin II,
- Oxidative stress,
- Conjugated polymer,
- Dihydropiridine,
- Regulation
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