1
|
Wang B, Ren L, Liang T, Hu W, Qiang T. Near infrared in and out: Deep imaging for scrap leather induced autophagy in vivo by an ultrasensitive two-photon polarity probe. Biosens Bioelectron 2023; 237:115453. [PMID: 37331101 DOI: 10.1016/j.bios.2023.115453] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Revised: 05/31/2023] [Accepted: 06/06/2023] [Indexed: 06/20/2023]
Abstract
As one of the important means for eukaryotic cells to maintain homeostasis, autophagy allows for transporting deformed biomacromolecules and damaged organelles to lysosome for digestion and degradation. The process of autophagy entails the merging of autophagosomes and lysosomes, culminating in the breakdown of biomacromolecules. This, in turn, leads to a change in lysosomal polarity. Therefore, fully understanding the changes of lysosomal polarity during autophagy is of significance to the study of membrane fluidity and enzymatic reaction. However, the shorter emission wavelength has greatly damaged the imaging depth, thus seriously limiting its biological application. Therefore, in this work, a near infrared in and out lysosome-targeted polarity-sensitive probe NCIC-Pola was developed. The fluorescence intensity of NCIC-Pola showed an approximate 1160-fold increase when the polarity decreased under two-photon excitation (TPE). In addition, the excellent fluorescence emission wavelength (692 nm) enabled the deep imaging analysis of scrap leather induced autophagy in vivo.
Collapse
Affiliation(s)
- Baoshuai Wang
- College of Bioresources and Materials Engineering, Shaanxi University of Science & Technology, Xi'an, 710021, China
| | - Longfang Ren
- College of Bioresources and Materials Engineering, Shaanxi University of Science & Technology, Xi'an, 710021, China.
| | - Tianyu Liang
- College of Bioresources and Materials Engineering, Shaanxi University of Science & Technology, Xi'an, 710021, China; College of Chemistry and Materials Engineering, Bohai University, Jinzhou, 121013, China
| | - Wei Hu
- College of Bioresources and Materials Engineering, Shaanxi University of Science & Technology, Xi'an, 710021, China; Key Laboratory of Auxiliary Chemistry and Technology for Chemical Industry, Ministry of Education, Shaanxi University of Science and Technology, Xi'an, 710021, China; Shaanxi Collaborative Innovation Center of Industrial Auxiliary Chemistry & Technology, Shaanxi University of Science & Technology, Xi'an, 710021, China.
| | - Taotao Qiang
- College of Bioresources and Materials Engineering, Shaanxi University of Science & Technology, Xi'an, 710021, China; Key Laboratory of Auxiliary Chemistry and Technology for Chemical Industry, Ministry of Education, Shaanxi University of Science and Technology, Xi'an, 710021, China; Shaanxi Collaborative Innovation Center of Industrial Auxiliary Chemistry & Technology, Shaanxi University of Science & Technology, Xi'an, 710021, China.
| |
Collapse
|
2
|
Zou X, Shi Y, Zhang S, Quan J, Han J, Han S. Fluorescence-On Imaging of Reticulophagy Enabled by an Acidity-Reporting Solvatochromic Probe. Anal Chem 2023. [PMID: 37463355 DOI: 10.1021/acs.analchem.3c02016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/20/2023]
Abstract
Aberrant autophagy of the endoplasmic reticulum (reticulophagy) is engaged in diverse pathological disorders. Herein, we reported sensitive imaging of reticulophagy with ER-Green-proRed, a diad combining a solvatochromic entity of trifluoromethylated naphthalimide for long-term ER tracking by green fluorescence and an entity of rhodamine-lactam fluorogenic to lysosomal acidity. Stringently accumulated in the ER to give green fluorescence, ER-Green-proRed exhibits robust red fluorescence upon codelivery with the ER subdomain into lysosomes. The relevance of turn-on red fluorescence to reticulophagy was validated by reticulophagy modulated by starvation, reticulophagic receptors, and autophagy inhibition. This imaging method was successfully employed to discern reticulophagy induced by various pharmacological agents. These results show the potential of ER-targeted pH probes, as exemplified by ER-Green-proRed, to image reticulophagy and to identify reticulophagy inducers.
Collapse
Affiliation(s)
- Xiaoxue Zou
- Department of Chemical Biology, College of Chemistry and Chemical Engineering, State Key Laboratory for Physical Chemistry of Solid Surfaces, the Key Laboratory for Chemical Biology of Fujian Province, the MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, Xiamen University, Xiamen 361005, China
| | - Yilong Shi
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Signaling Network, School of Life Sciences, Xiamen University, Xiamen 361005, China
| | - Shuo Zhang
- Department of Chemical Biology, College of Chemistry and Chemical Engineering, State Key Laboratory for Physical Chemistry of Solid Surfaces, the Key Laboratory for Chemical Biology of Fujian Province, the MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, Xiamen University, Xiamen 361005, China
| | - Jialiang Quan
- Department of Chemical Biology, College of Chemistry and Chemical Engineering, State Key Laboratory for Physical Chemistry of Solid Surfaces, the Key Laboratory for Chemical Biology of Fujian Province, the MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, Xiamen University, Xiamen 361005, China
| | - Jiahuai Han
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Signaling Network, School of Life Sciences, Xiamen University, Xiamen 361005, China
| | - Shoufa Han
- Department of Chemical Biology, College of Chemistry and Chemical Engineering, State Key Laboratory for Physical Chemistry of Solid Surfaces, the Key Laboratory for Chemical Biology of Fujian Province, the MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, Xiamen University, Xiamen 361005, China
| |
Collapse
|
3
|
Wang Y, Wang P, Li C. Fluorescence microscopic platforms imaging mitochondrial abnormalities in neurodegenerative diseases. Adv Drug Deliv Rev 2023; 197:114841. [PMID: 37088402 DOI: 10.1016/j.addr.2023.114841] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2023] [Revised: 04/10/2023] [Accepted: 04/18/2023] [Indexed: 04/25/2023]
Abstract
Neurodegenerative diseases (NDs) are progressive disorders that cause the degeneration of neurons. Mitochondrial dysfunction is a common symptom in NDs and plays a crucial role in neuronal loss. Mitochondrial abnormalities can be observed in the early stages of NDs and evolve throughout disease progression. Visualizing mitochondrial abnormalities can help understand ND progression and develop new therapeutic strategies. Fluorescence microscopy is a powerful tool for dynamically imaging mitochondria due to its high sensitivity and spatiotemporal resolution. This review discusses the relationship between mitochondrial dysfunction and ND progression, potential biomarkers for imaging dysfunctional mitochondria, advances in fluorescence microscopy for detecting organelles, the performance of fluorescence probes in visualizing ND-associated mitochondria, and the challenges and opportunities for developing new generations of fluorescence imaging platforms for monitoring mitochondria in NDs.
Collapse
Affiliation(s)
- Yicheng Wang
- Key Laboratory of Smart Drug Delivery, Ministry of Education, School of Pharmacy; Zhongshan Hospital, Fudan University, Shanghai, China
| | - Pengwei Wang
- Key Laboratory of Smart Drug Delivery, Ministry of Education, School of Pharmacy; Zhongshan Hospital, Fudan University, Shanghai, China
| | - Cong Li
- Key Laboratory of Smart Drug Delivery, Ministry of Education, School of Pharmacy; Zhongshan Hospital, Fudan University, Shanghai, China; State Key Laboratory of Medical Neurobiology, Fudan University Shanghai 201203, China.
| |
Collapse
|
4
|
Su S, Chai L, An Q, Hu W, Wang L, Li X, Zhang H, Li C. Tracking Autophagy Process with a TBET and AIE-Based Ratiometric Two-Photon Viscosity Probe. Anal Chem 2022; 94:15146-15154. [PMID: 36260837 DOI: 10.1021/acs.analchem.2c03555] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Autophagy is a cellular self-degrading process that plays a key role in cellular health and functioning. Since autophagy disorder is related to many diseases, it is highly important to detect autophagy. This study aimed to establish a dual-sensing mechanism-based ratiometric viscosity-sensitive lysosome-targeted two-photon fluorescent probe Vis-sun to track the autophagy process (the increase in lysosome viscosity during autophagy) by combining through bond energy transfer (TBET) and aggregation-induced emission (AIE). The introduction of TBET not only overcame the interference of background signals but also achieved the baseline separation of two emission peaks, thus reducing the crosstalk between emissions, as well as the noninvasive bio-sensing of biological targets and long-term real-time tracer imaging by introducing AIE. In vitro experiments showed that the fluorescence intensity at 485 nm decreased gradually on increasing the volume ratio of water to tetrahydrofuran (Vwater/VTHF), while the fluorescence intensity at 605 nm increased significantly. Also, the fluorescence signal was maximized when the water content reached 100%. At the same time, the probe exhibited a significant dependence on the ambient viscosity. Therefore, the dynamic monitoring of lysosome viscosity during autophagy and the in situ imaging of autophagy fluctuations during stroke-induced neuroinflammation were successfully achieved by implementing Vis-sun lysosome anchoring with morpholine.
Collapse
Affiliation(s)
- Shengze Su
- Key Laboratory of Analytical Chemistry of the State Ethnic Affairs Commission, College of Chemistry and Material Science, South-central University for Nationalities, Wuhan 430074, China
| | - Li Chai
- Key Laboratory of Analytical Chemistry of the State Ethnic Affairs Commission, College of Chemistry and Material Science, South-central University for Nationalities, Wuhan 430074, China
| | - Qian An
- Key Laboratory of Analytical Chemistry of the State Ethnic Affairs Commission, College of Chemistry and Material Science, South-central University for Nationalities, Wuhan 430074, China
| | - Wei Hu
- Department of Chemistry, Xinzhou Normal University, Xinzhou 034000, Shanxi, China
| | - Lina Wang
- Department of Chemistry, Xinzhou Normal University, Xinzhou 034000, Shanxi, China
| | - Xingcan Li
- Key Laboratory of Analytical Chemistry of the State Ethnic Affairs Commission, College of Chemistry and Material Science, South-central University for Nationalities, Wuhan 430074, China
| | - Huijuan Zhang
- Key Laboratory of Analytical Chemistry of the State Ethnic Affairs Commission, College of Chemistry and Material Science, South-central University for Nationalities, Wuhan 430074, China
| | - Chunya Li
- Key Laboratory of Analytical Chemistry of the State Ethnic Affairs Commission, College of Chemistry and Material Science, South-central University for Nationalities, Wuhan 430074, China
| |
Collapse
|
5
|
Zhai S, Hu W, Wang W, Chai L, An Q, Li C, Liu Z. Tracking autophagy process with a through bond energy transfer-based ratiometric two-photon viscosity probe. Biosens Bioelectron 2022; 213:114484. [PMID: 35724553 DOI: 10.1016/j.bios.2022.114484] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2022] [Revised: 06/08/2022] [Accepted: 06/11/2022] [Indexed: 11/02/2022]
Abstract
Autophagy is a self-degradation process in cells, which is of vital significance to the health and operation of organisms. Due to the increase of lysosomal viscosity during autophagy, viscosity probes that specifically accumulate in lysosome are powerful tools for monitoring autophagy and investigating related diseases. However, there is still a lack of viscosity-sensitive ratiometric autophagy probes, which restricts the tracking of autophagy with high accuracy in complex physiological environment. Herein, a viscosity-responsive, lysosome targeted two-photon fluorescent probe Lyso-Vis was designed based on through bond energy transfer (TBET) mechanism. The TBET-based probe achieved the separation of two emission baselines, which greatly improved the resolution and reliability of sensing and imaging. Under 810 nm two-photon excitation, the emission intensity ratio of the red and green channel increased with a viscosity dependent manner. Lyso-Vis not only for the first time realized ratiometric sensing of lysosomal viscosity during autophagy process, but also visualized the association of autophagy with inflammation and stroke, and it was applied to explore the activation and inhibition of autophagy during stroke in mice.
Collapse
Affiliation(s)
- Shuyang Zhai
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Wei Hu
- Key Laboratory of Analytical Chemistry of the State Ethnic Affairs Commission, College of Chemistry and Material Science, South-central University for Nationalities, Wuhan, 430074, China
| | - Weibo Wang
- Key Laboratory of Pesticide and Chemical Biology College of Chemistry, Ministry of Education Central China Normal University, Wuhan, 430079, China
| | - Li Chai
- Key Laboratory of Analytical Chemistry of the State Ethnic Affairs Commission, College of Chemistry and Material Science, South-central University for Nationalities, Wuhan, 430074, China
| | - Qian An
- Key Laboratory of Analytical Chemistry of the State Ethnic Affairs Commission, College of Chemistry and Material Science, South-central University for Nationalities, Wuhan, 430074, China
| | - Chunya Li
- Key Laboratory of Analytical Chemistry of the State Ethnic Affairs Commission, College of Chemistry and Material Science, South-central University for Nationalities, Wuhan, 430074, China.
| | - Zhihong Liu
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China.
| |
Collapse
|
6
|
Li M, Huang Y, Song S, Shuang S, Dong C. Piperazine-Based Mitochondria-Immobilized pH Fluorescent Probe for Imaging Endogenous ONOO – and Real-Time Tracking of Mitophagy. ACS APPLIED BIO MATERIALS 2022; 5:2777-2785. [DOI: 10.1021/acsabm.2c00213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Minglu Li
- College of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, P. R. China
| | - Yue Huang
- College of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, P. R. China
| | - Shengmei Song
- Institute of Environmental Science, Shanxi University, Taiyuan 030006, P. R. China
| | - Shaomin Shuang
- College of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, P. R. China
| | - Chuan Dong
- Institute of Environmental Science, Shanxi University, Taiyuan 030006, P. R. China
| |
Collapse
|
7
|
Hu W, Qiang T, Chai L, Liang T, Ren L, Cheng F, Li C, James TD. Simultaneous tracking of autophagy and oxidative stress during stroke with an ICT-TBET integrated ratiometric two-photon platform. Chem Sci 2022; 13:5363-5373. [PMID: 35655567 PMCID: PMC9093177 DOI: 10.1039/d1sc06805a] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Accepted: 04/12/2022] [Indexed: 12/15/2022] Open
Abstract
Over recent years, fluorescent probes exhibiting simultaneous responses to multiple targets have been developed for in situ, real-time monitoring of cellular metabolism using two photon fluorescence sensing techniques due to numerous advantages including ease of operation, rapid reporting, high resolution, long visualization time and being non-invasive. However, due to interference from different fluorescence channels during simultaneous monitoring of multiple targets and the lack of ratiometric capability amongst the available probes, the accuracy in tracing metabolic processes has been restricted. With this research, using a through-bond energy transfer (TBET) mechanism, we designed a viscosity and peroxynitrite (ONOO-) mitochondria-targeting two-photon ratiometric fluorescent probe Mito-ONOO. Our results indicated that with decreasing levels of mitochondrial viscosity and increasing levels of ONOO-, the maximum of the emission wavelength of the probe shifted from 621 nm to 495 nm under 810 nm two-photon excitation. The baselines for the two emission peaks were significantly separated (Δλ = 126 nm), improving the resolution and reliability of bioimaging. Moreover, by ratiometric analysis during oxygen-glucose deprivation/reoxygenation (OGD/R, commonly used to simulate cell ischemia/reperfusion injury), the real-time visualization of the metabolic processes of autophagy and oxidative stress was possible. Our research indicated that during cellular oxygen-glucose deprivation/reoxygenation, cells produce ONOO-, causing cellular oxidative stress and cellular autophagy after 15 min, as such Mito-ONOO exhibits the potential for the monitoring and diagnosis of stroke, as well as providing insight into potential treatments, and drug design.
Collapse
Affiliation(s)
- Wei Hu
- College of Bioresources and Materials Engineering, Shaanxi Collaborative Innovation Center of Industrial Auxiliary Chemistry & Technology, Shaanxi University of Science & Technology Xi'an 710021 China
| | - Taotao Qiang
- College of Bioresources and Materials Engineering, Shaanxi Collaborative Innovation Center of Industrial Auxiliary Chemistry & Technology, Shaanxi University of Science & Technology Xi'an 710021 China
| | - Li Chai
- Key Laboratory of Analytical Chemistry of the State Ethnic Affairs Commission, College of Chemistry and Material Science, South-Central University for Nationalities Wuhan 430074 China
| | - Tianyu Liang
- College of Bioresources and Materials Engineering, Shaanxi Collaborative Innovation Center of Industrial Auxiliary Chemistry & Technology, Shaanxi University of Science & Technology Xi'an 710021 China
| | - Longfang Ren
- College of Bioresources and Materials Engineering, Shaanxi Collaborative Innovation Center of Industrial Auxiliary Chemistry & Technology, Shaanxi University of Science & Technology Xi'an 710021 China
| | - Fei Cheng
- College of Bioresources and Materials Engineering, Shaanxi Collaborative Innovation Center of Industrial Auxiliary Chemistry & Technology, Shaanxi University of Science & Technology Xi'an 710021 China
| | - Chunya Li
- Key Laboratory of Analytical Chemistry of the State Ethnic Affairs Commission, College of Chemistry and Material Science, South-Central University for Nationalities Wuhan 430074 China
| | - Tony D James
- Department of Chemistry, University of Bath Bath BA27AY UK .,School of Chemistry and Chemical Engineering, Henan Normal University Xinxiang 453007 China
| |
Collapse
|
8
|
Chai L, Liang T, An Q, Hu W, Wang Y, Wang B, Su S, Li C. Near-Infrared in and out: Observation of Autophagy during Stroke via a Lysosome-Targeting Two-Photon Viscosity-Dependent Probe. Anal Chem 2022; 94:5797-5804. [PMID: 35380428 DOI: 10.1021/acs.analchem.1c05143] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Fluorescence imaging using probes with two-photon excitation and near-infrared emission is currently the most popular in situ method for monitoring biological species or events, with a large imaging depth, low background fluorescence, low optical damage, and high spatial and temporal resolution. Nevertheless, current fluorescent dyes with near-infrared emission still have some disadvantages such as poor water solubility, low fluorescence quantum yield, and small two-photon absorption cross sections. These drawbacks are mainly caused by the structural characteristics of dyes with large conjugation surfaces but lacking strong and rigid structures. Herein, a lysosome-targeted and viscosity-sensitive probe (NCIC-VIS) is designed and synthesized. The protonation of morpholine not only helps anchor NCIC-VIS to the lysosome but also significantly enhances its water solubility. More importantly, its viscosity can increase the rigid structure of NCIC-VIS, which will improve the fluorescence quantum yield and the two-photon absorption cross section due to the imposed restrictions on molecular torsion. Based on the abovementioned characteristics, the real-time imaging of cellular autophagy (could increase the viscosity of lysosomes) was realized using NCIC-VIS. The results demonstrated that the level of autophagy was significantly enhanced in mice during stroke, while the inhibition of oxidative stress significantly reduced the degree of autophagy. The study corroborates that oxidative stress induced by stroke can lead to the development of autophagy.
Collapse
Affiliation(s)
- Li Chai
- Key Laboratory of Analytical Chemistry of the State Ethnic Affairs Commission, College of Chemistry and Material Science, South-Central University for Nationalities, Wuhan 430074, China
| | - Tianyu Liang
- College of Bioresources and Materials Engineering, Shaanxi University of Science & Technology, Xi'an 710021, China
| | - Qian An
- Key Laboratory of Analytical Chemistry of the State Ethnic Affairs Commission, College of Chemistry and Material Science, South-Central University for Nationalities, Wuhan 430074, China
| | - Wei Hu
- College of Bioresources and Materials Engineering, Shaanxi University of Science & Technology, Xi'an 710021, China
| | - Yanying Wang
- Key Laboratory of Analytical Chemistry of the State Ethnic Affairs Commission, College of Chemistry and Material Science, South-Central University for Nationalities, Wuhan 430074, China
| | - Baoshuai Wang
- College of Bioresources and Materials Engineering, Shaanxi University of Science & Technology, Xi'an 710021, China
| | - Shengze Su
- Key Laboratory of Analytical Chemistry of the State Ethnic Affairs Commission, College of Chemistry and Material Science, South-Central University for Nationalities, Wuhan 430074, China
| | - Chunya Li
- Key Laboratory of Analytical Chemistry of the State Ethnic Affairs Commission, College of Chemistry and Material Science, South-Central University for Nationalities, Wuhan 430074, China
| |
Collapse
|
9
|
Yang M, He Y, Deng S, Xiao L, Tian M, Xin Y, Lu C, Zhao F, Gong Y. Mitochondrial Quality Control: A Pathophysiological Mechanism and Therapeutic Target for Stroke. Front Mol Neurosci 2022; 14:786099. [PMID: 35153669 PMCID: PMC8832032 DOI: 10.3389/fnmol.2021.786099] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Accepted: 12/21/2021] [Indexed: 12/15/2022] Open
Abstract
Stroke is a devastating disease with high mortality and disability rates. Previous research has established that mitochondria, as major regulators, are both influenced by stroke, and further regulated the development of poststroke injury. Mitochondria are involved in several biological processes such as energy generation, calcium homeostasis, immune response, apoptosis regulation, and reactive oxygen species (ROS) generation. Meanwhile, mitochondria can evolve into various quality control systems, including mitochondrial dynamics (fission and fusion) and mitophagy, to maintain the homeostasis of the mitochondrial network. Various activities of mitochondrial fission and fusion are associated with mitochondrial integrity and neurological injury after stroke. Additionally, proper mitophagy seems to be neuroprotective for its effect on eliminating the damaged mitochondria, while excessive mitophagy disturbs energy generation and mitochondria-associated signal pathways. The balance between mitochondrial dynamics and mitophagy is more crucial than the absolute level of each process. A neurovascular unit (NVU) is a multidimensional system by which cells release multiple mediators and regulate diverse signaling pathways across the whole neurovascular network in a way with a high dynamic interaction. The turbulence of mitochondrial quality control (MQC) could lead to NVU dysfunctions, including neuron death, neuroglial activation, blood–brain barrier (BBB) disruption, and neuroinflammation. However, the exact changes and effects of MQC on the NVU after stroke have yet to be fully illustrated. In this review, we will discuss the updated mechanisms of MQC and the pathophysiology of mitochondrial dynamics and mitophagy after stroke. We highlight the regulation of MQC as a potential therapeutic target for both ischemic and hemorrhagic stroke.
Collapse
Affiliation(s)
- Miaoxian Yang
- Department of Critical Care Medicine, Huashan Hospital, Fudan University, Shanghai, China
| | - Yu He
- Department of Critical Care Medicine, Huashan Hospital, Fudan University, Shanghai, China
| | - Shuixiang Deng
- Department of Critical Care Medicine, Huashan Hospital, Fudan University, Shanghai, China
| | - Lei Xiao
- The State Key Laboratory of Medical Neurobiology, MOE Frontiers Center for Brain Science, The Institutes of Brain Science, Fudan University, Shanghai, China
| | - Mi Tian
- Department of Critical Care Medicine, Huashan Hospital, Fudan University, Shanghai, China
| | - Yuewen Xin
- Department of Critical Care Medicine, Huashan Hospital, Fudan University, Shanghai, China
| | - Chaocheng Lu
- Department of Critical Care Medicine, Huashan Hospital, Fudan University, Shanghai, China
| | - Feng Zhao
- Department of Critical Care Medicine, Huashan Hospital, Fudan University, Shanghai, China
- *Correspondence: Feng Zhao,
| | - Ye Gong
- Department of Critical Care Medicine, Huashan Hospital, Fudan University, Shanghai, China
- Department of Neurosurgery, Huashan Hospital, Fudan University, Shanghai, China
- Ye Gong,
| |
Collapse
|
10
|
Wang X, Sun Q, Song X, Wang Y, Hu W. Development of a ratiometric nitric oxide probe with baseline resolved emissions by an ESIPT and rhodol ring opened-closed integrated two-photon platform. RSC Adv 2022; 12:2721-2728. [PMID: 35425308 PMCID: PMC8979048 DOI: 10.1039/d1ra08426g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Accepted: 12/22/2021] [Indexed: 11/28/2022] Open
Abstract
In recent years, reflecting the degree of cellular inflammation through in situ monitoring of nitric oxide using fluorescence sensing has received much attention due to many merits such as non-invasiveness and easy operation. In particular, two-photon excitation microscopy can significantly improve the imaging resolution and visualization time. In the meantime, a ratiometric-based nitric oxide fluorescent sensor can avoid the interference of many factors, including light source intensity, solvent scattering degree, solvent color, solvent viscosity, probe distribution, and instrument performance, and improve the accuracy of the result. However, the mutual interference of two emission peaks is still an issue restricting the development of this field. In this work, the Rh-NO-F dye obtained by modifying the rhodol dye with benzothiazole exhibited excited state intramolecular proton transfer (ESIPT) in the closed ring state. In the open ring state, however, the emission wavelength can be significantly red-shifted by increasing the degree of dye conjugation. By introducing o-phenylenediamine, the recognition domain of NO, we successfully designed and synthesized a ratiometric two-photon NO fluorescent probe, Rh-NO-P, which showed a 154 nm increase in the maximum emission wavelength before and after the response and almost no interference between the two emission peaks. Confocal imaging showed that the probe could achieve in situ detection of exogenous NO fluctuations in cells. The probe was also successfully applied to detect the changes in NO content during wound healing in mice. A NO-specific two-photon ratiometric probe for evaluation of inflammation in the process of diabetic mouse skin ulcers was constructed.![]()
Collapse
Affiliation(s)
- Xumei Wang
- Hubei Key Laboratory of Biological Resources Protection and Utilization, School of Chemical and Environmental Engineering, Hubei Minzu University Enshi 445000 China
| | - Qi Sun
- Hubei Key Laboratory of Biological Resources Protection and Utilization, School of Chemical and Environmental Engineering, Hubei Minzu University Enshi 445000 China
| | - Xinjian Song
- Hubei Key Laboratory of Biological Resources Protection and Utilization, School of Chemical and Environmental Engineering, Hubei Minzu University Enshi 445000 China
| | - Yan Wang
- Hubei Key Laboratory of Biological Resources Protection and Utilization, School of Chemical and Environmental Engineering, Hubei Minzu University Enshi 445000 China
| | - Wei Hu
- College of Bioresources and Materials Engineering, Shaanxi University of Science & Technology Xi'an 710021 China
| |
Collapse
|
11
|
Wang L, Qiang T, Ren L, Cheng F, Hu W, Qu R. Observation of macrophage autophagy in the healing of diabetic ulcers via a lysosome-targeting polarity-specific two-photon probe. RSC Adv 2022; 12:3654-3661. [PMID: 35425343 PMCID: PMC8979232 DOI: 10.1039/d1ra08417h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Accepted: 01/19/2022] [Indexed: 12/25/2022] Open
Abstract
As a disease with high incidence, mutilation, and fatality rates, diabetic ulcers (DUs) have become a difficult and complicated disease of widely concern in recent years due to the unclear healing mechanism. The main reason for the delayed healing in DU patients is the unduly long chronic inflammation window, and the polarization state of macrophages plays a key role in this process. Since autophagy is believed to be closely related to the polarization trend of macrophages, recent studies have shown that autophagy is closely related to the healing of DU. To this end, a lysosome-targeting polarity-sensitive probe, XZTU-VIS, was developed to monitor the changes in lysosomal polarity, thereby assessing the autophagy of macrophages in mice suffering from DU. The experimental results showed that under two-photon fluorescence microscopy, the green channel fluorescence signal of XZTU-VIS decreased significantly during autophagy. In the meantime, DU models established using BV-2 cells and mice showed a process that could cause inflammation and the release of ROS, thereby inducing autophagy. A polarity-dependent two-photon fluorescent probe for evaluation of autophagy in the process of diabetic mouse skin ulcer-induced inflammation was constructed.![]()
Collapse
Affiliation(s)
- Lina Wang
- College of Bioresources and Materials Engineering, Shaanxi Collaborative Innovation Center of Industrial Auxiliary Chemistry & Technology, Shaanxi University of Science & Technology, Xi'an, 710021, China
| | - Taotao Qiang
- College of Bioresources and Materials Engineering, Shaanxi Collaborative Innovation Center of Industrial Auxiliary Chemistry & Technology, Shaanxi University of Science & Technology, Xi'an, 710021, China
| | - Longfang Ren
- College of Bioresources and Materials Engineering, Shaanxi Collaborative Innovation Center of Industrial Auxiliary Chemistry & Technology, Shaanxi University of Science & Technology, Xi'an, 710021, China
| | - Fei Cheng
- College of Bioresources and Materials Engineering, Shaanxi Collaborative Innovation Center of Industrial Auxiliary Chemistry & Technology, Shaanxi University of Science & Technology, Xi'an, 710021, China
| | - Wei Hu
- College of Bioresources and Materials Engineering, Shaanxi Collaborative Innovation Center of Industrial Auxiliary Chemistry & Technology, Shaanxi University of Science & Technology, Xi'an, 710021, China
- Shaanxi Collaborative Innovation Center of Industrial Auxiliary Chemistry & Technology, Shaanxi University of Science & Technology, Xi'an, 710021, China
| | - Renyu Qu
- Jiangsu Sevencontinent Green Chemical Co., Ltd., Zhangjiagang, 215600, China
| |
Collapse
|
12
|
Liang T, Zhang D, Hu W, Tian C, Zeng L, Wu T, Lei D, Qiang T, Yang X, Sun X. A dual lock-and-key two photon fluorescence probe in response to hydrogen peroxide and viscosity: Application in cellular imaging and inflammation therapy. Talanta 2021; 235:122719. [PMID: 34517587 DOI: 10.1016/j.talanta.2021.122719] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Revised: 07/12/2021] [Accepted: 07/14/2021] [Indexed: 02/08/2023]
Abstract
Here, a dual lock-and-key fluorescence probe was developed for visualizing the inflammatory process in myocardial H9C2 cells. The probe possessed two-photon properties, viscosity sensitivity, and hydrogen peroxide (H2O2) responsiveness. A thiocarbamate spacer between fluorophore and H2O2 responsive unit enabled the release of carbonyl sulfide (COS). This rapidly converts to the anti-inflammatory hydrogen sulfide (H2S) by the ubiquitous enzyme carbon anhydrase. The probe displayed a dual response towards hydrogen peroxide and viscosity in vitro. No obvious fluorescence changes were observed towards either hydrogen peroxide or viscosity alone. In cellular experiments, the probe demonstrated good biocompatibility, low toxicity, and was shown responses towards exogenous and endogenous hydrogen peroxide under viscosity conditions. LPS induced cell inflammation showed it was able to effectively alleviate the inflammation-caused damage by releasing H2S and eliminating H2O2. The new protocol demonstrates its promising to achieve diagnosis and treatment of cellular inflammatory process.
Collapse
Affiliation(s)
- Tianyu Liang
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, 710049, China; College of Bioresources and Materials Engineering, Shaanxi University of Science & Technology, Xi'an, 710021, China
| | - Dongliang Zhang
- Department of Burns and Cutaneous Surgery, Xijing Hospital, The Fourth Military Medical University, Xi 'an, 710032, China
| | - Wei Hu
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, 710049, China; College of Bioresources and Materials Engineering, Shaanxi University of Science & Technology, Xi'an, 710021, China.
| | - Chenyang Tian
- Department of Burns and Cutaneous Surgery, Xijing Hospital, The Fourth Military Medical University, Xi 'an, 710032, China
| | - Lingyu Zeng
- Department of Chemistry, The University of Texas at Austin, Texas, 78712, United States
| | - Tianhong Wu
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, 710049, China
| | - Dongqing Lei
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, 710049, China
| | - Taotao Qiang
- College of Bioresources and Materials Engineering, Shaanxi University of Science & Technology, Xi'an, 710021, China
| | - Xuekang Yang
- Department of Burns and Cutaneous Surgery, Xijing Hospital, The Fourth Military Medical University, Xi 'an, 710032, China.
| | - Xiaolong Sun
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, 710049, China.
| |
Collapse
|
13
|
Ratiometric two-photon fluorescence probes for sensing, imaging and biomedicine applications at living cell and small animal levels. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2021.214114] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
|