硫化氢 (H 2 S) 是一种气体分子,因其在生物过程中的作用和在疾病(例如缺血性再灌注损伤)中的治疗潜力而受到关注。尽管具有临床相关性,但 H 2 S 向生物系统的输送因其高浓度的毒性而受到阻碍。在此,我们报告了第一个金属基 H 2 S 供体,可选择性地将这种气体输送到缺氧细胞。我们进一步表明,该化合物释放的 H 2 S 可以保护 H9c2 大鼠成肌细胞免受缺血性再灌注损伤的体外模型的影响。这些结果验证了氧化还原激活金属配合物作为缺氧选择性 H 2 S 释放剂的实用性,可用作研究这种气体分子在复杂生物系统中的作用的工具。
Reactive sulfur species have received considerable attention due to their various biological functions. Among these molecules, hydrogen polysulfides (H2Sn, n > 1) are recently suggested to be the actual signaling molecules derived from hydrogen sulfide (H2S). Hydrogen polysulfides may also have their own biosynthetic pathways. The research on H2Sn is rapidly growing. However, the detection of H2Sn is still challenging. In this work we report a H2Sn-mediated benzodithiolone formation under mild conditions. Based on this reaction, specific fluorescent probes for H2Sn are prepared and evaluated. The probe DSP-3 shows good selectivity and sensitivity for H2Sn.
Real-time monitoring of a photoactivated hydrogen persulfide donor for biological entities
Hydrogen persulfide (H2S2) plays an important role in sulfur-based redox signaling mechanisms. Herein, we developed a visible light activated ESIPT based H2S2 donor using a p-hydroxyphenacylphototrigger. The unique feature of the designed H2S2 donor system is the ability to monitor the H2S2 release in real time through a non-invasive fluorescence color change approach, with the color changing from
A Dinuclear Persulfide‐Bridged Ruthenium Compound is a Hypoxia‐Selective Hydrogen Sulfide (H
<sub>2</sub>
S) Donor
作者:Joshua J. Woods、Justin J. Wilson
DOI:10.1002/anie.202012620
日期:2021.1.18
Hydrogen sulfide (H2S) is a gaseousmolecule that has received attention for its role in biological processes and therapeutic potential in diseases, such as ischemic reperfusion injury. Despite its clinical relevance, delivery of H2S to biological systems is hampered by its toxicity at high concentrations. Herein, we report the first metal‐based H2S donor that delivers this gas selectively to hypoxic
硫化氢 (H 2 S) 是一种气体分子,因其在生物过程中的作用和在疾病(例如缺血性再灌注损伤)中的治疗潜力而受到关注。尽管具有临床相关性,但 H 2 S 向生物系统的输送因其高浓度的毒性而受到阻碍。在此,我们报告了第一个金属基 H 2 S 供体,可选择性地将这种气体输送到缺氧细胞。我们进一步表明,该化合物释放的 H 2 S 可以保护 H9c2 大鼠成肌细胞免受缺血性再灌注损伤的体外模型的影响。这些结果验证了氧化还原激活金属配合物作为缺氧选择性 H 2 S 释放剂的实用性,可用作研究这种气体分子在复杂生物系统中的作用的工具。