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题名:
In situ quantification and evaluation of ClO-/H2S homeostasis in inflammatory gastric tissue by applying a rationally designed dual-response fluorescence probe featuring a novel H+-activated mechanism
作者: Fu, Qiang1,2; Chen, Guang1,3; Liu, Yuxia1; Cao, Ziping1; Zhao, Xianen1; Li, Guoliang1; Yu FaBiao(于法标)3; Chen, Lingxin3; Wang, Hua1; You, Jinmao1,2
刊名: ANALYST
ISSN号: 0003-2654
出版日期: 2017-05-07
卷号: 142, 期号:9, 页码:1619-1627
关键词: ENDOGENOUS HYDROGEN-SULFIDE ; LIVING CELLS ; HYPOCHLOROUS ACID ; BIOLOGICAL-SYSTEMS ; OXIDATIVE STRESS ; REDOX CYCLE ; SE-BODIPY ; POLYSULFIDES ; MITOCHONDRIA ; DAMAGE
学科分类: Chemistry
DOI: 10.1039/c7an00244k
产权排序: [Fu, Qiang; Chen, Guang; Liu, Yuxia; Cao, Ziping; Zhao, Xianen; Li, Guoliang; Wang, Hua; You, Jinmao] Qufu Normal Univ, Key Lab Life Organ Anal, Key Lab Pharmaceut Intermediates & Anal Nat Med, Qufu 273165, Shandong, Peoples R China; [Fu, Qiang; You, Jinmao] Qinghai Normal Univ, Xining, Peoples R China; [Chen, Guang; Yu, Fabiao; Chen, Lingxin] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Res Ctr Coastal Environm Engn & Technol, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Peoples R China
通讯作者: Chen, G
作者部门: 中科院海岸带环境过程与生态修复重点实验室
英文摘要: Homeostasis of ClO-/H2S plays a crucial role in the damage and repair of gastric tissue, but has rarely been investigated due to the challenge of in situ analysis in the highly acidic gastric environment. Herein, we designed a new H+-activated optical mechanism, involving controllable photoinduced electron transfer (PET) and switch of electron push-pull (SEPP), to develop the simple yet multifunctional probe (Z)-4( 2-benzylidenehydrazinyl)-7-nitrobenzo[c][1,2,5] oxadiazole (BNBD). First, the BNBD probe (Off) was protonated by the highly acidic media to trigger strong fluorescence (On). Then, the analytes ClO- and H2S reacted with the protonated BNBD, leading to ultrasensitive (ClO-: 2.7 nM and H2S: 6.9 nM) fluorescence quenching via the rapid oxidation of CvN (50 s) and nitro reduction (10 s), respectively. With the logical discrimination by absorbance/colour (ClO-: 300 nm/colorless and H2S: 400 nm/orange), a strategy for the in situ quantification of ClO-/H2S in gastric mucosa and juice was developed. For the first time, the in situ quantitative monitoring of endogenous H2S and ClO-/H2S homeostasis as well as the pathologic manifestation in gastric mucosa were realized, thus overcoming the challenge of ClO-/H2S analysis under highly acidic conditions and enabling the in situ tissue quantification of ClO-/H2S. In combination with the assessment of mucosal damage, this study confirms the injurious/rehabilitative effects of ClO-/H2S on gastric mucosa (at 50-90 mu m depth), which may facilitate the auxiliary diagnosis of stomach diseases induced by oxidative stress.
研究领域[WOS]: Chemistry
项目资助者: National Natural Science Foundation of China(21475074 ; Taishan Scholar Foundation of Shandong Province, P. R. China ; Open Funds of the Shandong Province Key Laboratory of Detection Technology for Tumor Markers(KLDTTM2015-6) ; Province Higher Educational Science and Technology Program(J14LC17) ; Opening Foundation of Shandong Provincial Key Laboratory of Detection Technology for Tumor Makers(KLDTTM2015-9) ; China Postdoctoral Science Foundation(2016 M600531) ; 21403123 ; 21375075 ; 31301595 ; 21402106 ; 21475075 ; 21275089 ; 21405093 ; 21405094 ; 81303179 ; 21305076)
关键词[WOS]: ENDOGENOUS HYDROGEN-SULFIDE ; LIVING CELLS ; HYPOCHLOROUS ACID ; BIOLOGICAL-SYSTEMS ; OXIDATIVE STRESS ; REDOX CYCLE ; SE-BODIPY ; POLYSULFIDES ; MITOCHONDRIA ; DAMAGE
文章类型: Article
收录类别: SCI
原文出处: 查看原文
语种: 英语
WOS记录号: WOS:000400688500025
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.yic.ac.cn/handle/133337/22049
Appears in Collections:中科院海岸带环境过程与生态修复重点实验室_期刊论文

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作者单位: 1.Qufu Normal Univ, Key Lab Life Organ Anal, Key Lab Pharmaceut Intermediates & Anal Nat Med, Qufu 273165, Shandong, Peoples R China
2.Qinghai Normal Univ, Xining, Peoples R China
3.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Res Ctr Coastal Environm Engn & Technol, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Peoples R China

Recommended Citation:
Fu, Qiang,Chen, Guang,Liu, Yuxia,et al. In situ quantification and evaluation of ClO-/H2S homeostasis in inflammatory gastric tissue by applying a rationally designed dual-response fluorescence probe featuring a novel H+-activated mechanism[J]. ANALYST,2017,142(9):1619-1627.
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