Dojindo,-硫生物-SSP4/SSP4/SB10

很明显,在生物体内存在大量含有硫烷硫的分子,例如过硫化物和多硫化物。 这些分子种类参与硫化氢的产生、储存和释放,硫化氢被认为是一种重要的生理介质。 此外,最近的研究表明,过硫化物和多硫化物可能通过蛋白质的 s- 硫化作用来控制细胞内信号转导。SSP4 (Sulfane Sulfur Probe 4) 是一种新型荧光探针,可以选择性地检测硫烷硫。 SSP4 本身不发荧光,但与硫烷反应时会发出强烈的绿色荧光。 因此,SSP4 能够实现硫烷硫的高灵敏度荧光检测和成像。

Fig. 1 Chemical Reaction with sulfane sulfer

Fig. 2 Fluorescence spectrum (Em: 482nm/Ex: 515nm)


Chemical species containing sulfane sulfurs:

Fig. 3 The formation of sulfane sulfer in vivo changes due to reduction/oxidation and translation

1. W. Chen, C. Liu, B. Peng, Y. Zhao, A. Pacheco, and M. Xian,“New fluorescent probe for sulfane sulfurs and the application in bioimaging“, Chem. Sci., 2013, 4, 2892.2. T. Ida, T. Sawa, H. Ihara. Y. Tsuchiya, Y. Watanabe, Y. Kumagai, M. Suematsu, H. Motohashi, S. Fujii, T, Matsunaga, M. Yamamoto, K. Ono, N. O. Devarie-Baez, M. Xian, J. M Fukuto, and T. Akaike, “Reactive cysteine persulfides and S-polythiolation regulate oxidative stress and redox signaling”, Proc Natl Acad Sci U S A., 2014, 111, 7606.3. E. Marutani, M. Sakaguchi, W. Chen, K. Sasakura, J. Liu, M. Xian, K. Hanaoka, T. Nagano, and F. Ichinose, “Cytoprotective effects of hydrogen sulfide-releasing N-methyl-D-aspartate receptor antagonists mediated by intracellular sulfane sulfur”, Med. Chem. Commun., 2014, 5, 1577.4. M. Sakaguchi, E. Marutani, H-S. Shin, W. Chen, K. Hanaoka, M. Xian, and F. Ichinose, “Sodium Thiosulfate Attenuates Acute Lung Injury in Mice”, Anesthesiology. 2014,121, 1248.

Cell Imaging:

Left: Control cellsRight: Treatment of 100 μmol/l Na2S3

Cell: CHO cellExposure time: 1,000 msc