1
|
Ostruszka R, Halili A, Pluháček T, Rárová L, Jirák D, Šišková K. Advanced protein-embedded bimetallic nanocomposite optimized for in vivo fluorescence and magnetic resonance bimodal imaging. J Colloid Interface Sci 2024; 663:467-477. [PMID: 38422973 DOI: 10.1016/j.jcis.2024.02.116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Revised: 02/01/2024] [Accepted: 02/13/2024] [Indexed: 03/02/2024]
Abstract
HYPOTHESIS The development of bimodal imaging probes represents a hot topic of current research. Herein, we deal with developing an innovative bimodal contrast agent enabling fluorescence imaging (FI)/magnetic resonance imaging (MRI) and, simultaneously, consisting of biocompatible nanostructures. Optimized synthesis of advanced protein-embedded bimetallic (APEBM) nanocomposite containing luminescent gold nanoclusters (AuNC) and superparamagnetic iron oxide nanoparticles (SPION), suitable for in vivo dual-modal FI/MR imaging is reported. EXPERIMENTS The APEBM nanocomposite was prepared by a specific sequential one-pot green synthetic approach that is optimized to increase metals (Au, Fe) content and, consequently, the imaging ability of the resulting nanostructures. The protein matrix, represented by serum albumin, was intentionally chosen, and used since it creates an efficient protein corona for both types of optically/magnetically-susceptible nanostructures (AuNC, SPION) and ensures biocompatibility of the resulting APEBM nanocomposite although it contains elevated metal concentrations (approx. 1 mg·mL-1 of Au, around 0.3 mg·mL-1 of Fe). In vitro and in vivo imaging was performed. FINDINGS Successful in vivo FI and MRI recorded in healthy mice corroborated the applicability of the APEBM nanocomposite and, simultaneously, served as a proof of concept concerning the potential future exploitation of this new FI/MRI bimodal contrast agent in preclinical and clinical practice.
Collapse
Affiliation(s)
- Radek Ostruszka
- Department of Experimental Physics, Faculty of Science, Palacký University Olomouc, tř. 17. listopadu 12, 77900 Olomouc, Czech Republic
| | - Aminadav Halili
- Institute for Clinical and Experimental Medicine, Vídeňská 9, 140 21 Prague, Czech Republic
| | - Tomáš Pluháček
- Department of Analytical Chemistry, Faculty of Science, Palacký University Olomouc, tř. 17. listopadu 12, 77900 Olomouc, Czech Republic
| | - Lucie Rárová
- Department of Experimental Biology, Faculty of Science, Palacký University Olomouc, Šlechtitelů 27, 77900 Olomouc, Czech Republic
| | - Daniel Jirák
- Institute for Clinical and Experimental Medicine, Vídeňská 9, 140 21 Prague, Czech Republic; Faculty of Health Studies, Technical University of Liberec, Studentská 1402/2, 46117 Liberec, Czech Republic
| | - Karolína Šišková
- Department of Experimental Physics, Faculty of Science, Palacký University Olomouc, tř. 17. listopadu 12, 77900 Olomouc, Czech Republic.
| |
Collapse
|
2
|
Yang Y, Tao J, Liang F, Sun B, Jiang J, Zhao M, Gao D. A fluorescent probe for ultrarapid H2O2 detection during reagent-stimulated oxidative stress in cells and zebrafish. Spectrochim Acta A Mol Biomol Spectrosc 2024; 313:124061. [PMID: 38479226 DOI: 10.1016/j.saa.2024.124061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Revised: 02/08/2024] [Accepted: 02/18/2024] [Indexed: 04/02/2024]
Abstract
Hydrogen peroxide(H2O2), as a reliable signaling biomolecule for oxidative stress, its accurate detection during agent-stimulated oxidative stress plays a vital role in pathological and physiological mechanism exploration for disease theranostics. It's necessary to develop an efficient method for their detection. In view of the advantages of fluorescent probes, we rationally constructed a novel fluorescent probe Compound 2 based on 4-(Bromomethyl)benzeneboronic acid pinacol ester_Herein, a small molecule fluorescent probe was fabricated using isoflore nitrile as fluorescent group, phenylboronic acid pinacol ester as the response group, to detect H2O2. The probe Compound 2 has a strong fluorescence intensity at 575 nm, indicating that the structure of the probe molecule is reasonably designed, and the Stokes shift is up to 172 nm. While the detection time is as low as 30 s and the LOD of the probe for H2O2 is as low as 3.7 μmol/L,the quantum yield is Φ = 40.31 %. It has been successfully used for imaging detection of H2O2 in HepG2 cells and zebrafish for its low toxicity. It can be found that this small molecule fluorescent probe can identify H2O2 in tumor cells significantly and efficiently, which would realize the early diagnosis of tumor.
Collapse
Affiliation(s)
- Yulong Yang
- Department of Veterinary Medicine, Shanxi Agricultural University, Jinzhong 030801, China.
| | - Jiali Tao
- Department of Mining Engineering, Shanxi Institute of Engineering and Technology, Yangquan 045000, China.
| | - Fenfen Liang
- Department of Mining Engineering, Shanxi Institute of Engineering and Technology, Yangquan 045000, China.
| | - Bin Sun
- Department of Mining Engineering, Shanxi Institute of Engineering and Technology, Yangquan 045000, China.
| | - Junbing Jiang
- Department of Veterinary Medicine, Shanxi Agricultural University, Jinzhong 030801, China; Department of Mining Engineering, Shanxi Institute of Engineering and Technology, Yangquan 045000, China.
| | - Mingxia Zhao
- Department of Mining Engineering, Shanxi Institute of Engineering and Technology, Yangquan 045000, China.
| | - Dan Gao
- Department of Shenyang Institute of Technology, Fushun, Liaoning 113122,China.
| |
Collapse
|
3
|
Liu C, Li P, Yan X, Yang L, Liu P, Wang Q. Design of a dual Ir-Eu tag for fluorescent visualization and ICP-MS quantification of SIRPα and its host cells. Anal Bioanal Chem 2024; 416:2691-2697. [PMID: 38133669 DOI: 10.1007/s00216-023-05108-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Revised: 12/10/2023] [Accepted: 12/12/2023] [Indexed: 12/23/2023]
Abstract
With the expansion of ICP-MS application into the field of bioanalysis, there is an urgent need for novel element tags today. Here, we report the design of a dual-element Ir-Eu tag, opening the door to simultaneous fluorescent imaging and ICP-MS quantification. The ratio of 153Eu/193Ir may serve as a precision control of the labeling process, allowing internal validation of the quantitative results obtained. As for SIRPα and its host cell analysis exemplified here, the Ir-Eu tag demonstrated superior figures of ICP-MS quantification with the LOD (3σ) down to 0.5 (153Eu) and 1.1 (193Ir) pM SIRPα and 220 (153Eu) and 830 (193Ir) RAW264.7 cells more than 130 times more sensitive compared with the LOD (3σ) of 65.2 pM SIRPα at 612 nm using fluorometry. Not limited to these demonstrations, we believe that the design ideas of the dual Ir-Eu tags should be applicable to various cases of bioanalysis when dual optical profiling and ICP-MS quantification are indispensable.
Collapse
Affiliation(s)
- Chunlan Liu
- Department of Chemistry & the MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
- College of Chemistry and Bioengineering, Yichun University, Yichun, 336000, China
| | - Pengtao Li
- Department of Hepatobiliary Surgery & Fujian Provincial Key Laboratory of Chronic Liver Disease and Hepatocellular Carcinoma, Xiamen Key Laboratory of Translational Medical of Digestive System Tumor, Zhongshan Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, 361000, China
| | - Xiaowen Yan
- Department of Chemistry & the MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Limin Yang
- Department of Chemistry & the MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Pingguo Liu
- Department of Hepatobiliary Surgery & Fujian Provincial Key Laboratory of Chronic Liver Disease and Hepatocellular Carcinoma, Xiamen Key Laboratory of Translational Medical of Digestive System Tumor, Zhongshan Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, 361000, China.
| | - Qiuquan Wang
- Department of Chemistry & the MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China.
| |
Collapse
|
4
|
Wang L, Ma Y, Lin W. Construction of a turn-on fluorescent probe for detecting formaldehyde in biological systems and real food samples. Food Chem 2024; 450:139315. [PMID: 38615534 DOI: 10.1016/j.foodchem.2024.139315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2024] [Revised: 03/27/2024] [Accepted: 04/08/2024] [Indexed: 04/16/2024]
Abstract
The monitoring of formaldehyde (FA) in biosystems and real foods is critical for ensuring human health and food safety. However, the development of effective and highly selective assays for sensing FA in organisms and real food samples remains challenging. Herein, a hydrophilic group-modified the probe (Nap-FA) was reported, which utilizes the specific chemical reaction between FA and hydrazino to trigger a "turn-on" fluorescence response. The probe Nap-FA displayed superior selectivity, high sensitivity, good photostability and a low detection limit in the reaction with FA. Notably, Nap-FA has been successfully used for imaging FA in cells, zebrafish, and plant root tissues. In addition, the rationally constructed probe Nap-FA could rapidly and visually detect FA in real food samples. This work provides a prospective approach for monitoring FA in complex biological systems and food fields.
Collapse
Affiliation(s)
- Lin Wang
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan, Shandong 250022, PR China
| | - Yanyan Ma
- Shandong Provincial Key Laboratory of Marine Monitoring Instrument Equipment Technology, National Engineering and Technological Research Center of Marine Monitoring Equipment, Institute of Oceanographic Instrumentation, Qilu University of Technology (Shandong Academy of Sciences), Qingdao, Shandong 266061, PR China
| | - Weiying Lin
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan, Shandong 250022, PR China; Institute of Optical Materials and Chemical Biology, Guangxi Key Laboratory of Electrochemical Energy Materials, School of Chemistry and Chemical Engineering, Guangxi University, Nanning, Guangxi 530004, PR China.
| |
Collapse
|
5
|
Oropallo A, Beneat A, Rao A, Goodman E. Revisiting Heinz-Lippman disease as a complication of chronic venous insufficiency. J Vasc Surg Cases Innov Tech 2024; 10:101408. [PMID: 38389931 PMCID: PMC10882172 DOI: 10.1016/j.jvscit.2023.101408] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Accepted: 12/14/2023] [Indexed: 02/24/2024] Open
Abstract
Chronic venous insufficiency with and without ulceration is a common complication of varicose veins. Heinz-Lippmann disease is a potentially underreported complication of chronic venous insufficiency that involves heterotopic ossification of the peri-wound that might contribute to the chronicity of venous leg ulcers. Most commonly, heterotopic ossification is associated with traumatic injury. We report the cases of three patients with chronic venous insufficiency and no history of trauma who were found to have subcutaneous calcifications consistent with Heinz-Lippmann disease. Osteomyelitis was confirmed in two patients. Physical examination and diagnostic imaging can be helpful in determining the diagnosis. Interventions can include biopsy to rule out osteomyelitis, with subsequent treatment, if needed.
Collapse
Affiliation(s)
- Alisha Oropallo
- Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Hempstead, NY
- Department of Vascular Surgery, Northwell Health, Manhasset, NY
- Northwell Health Comprehensive Wound Care Center, North Shore University Hospital, Lake Success, NY
| | - Amanda Beneat
- Northwell Health Comprehensive Wound Care Center, North Shore University Hospital, Lake Success, NY
| | - Amit Rao
- Northwell Health Comprehensive Wound Care Center, North Shore University Hospital, Lake Success, NY
| | - Eric Goodman
- Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Hempstead, NY
- Department of Radiology, Northwell Health, Manhasset, NY
| |
Collapse
|
6
|
Yang Z, Zhong T, Mo Q, He J, Chong J, Hu X, Zhao S, Qin J. Monoamine oxidase B activatable red fluorescence probe for bioimaging in cells and zebrafish. Bioorg Chem 2024; 145:107156. [PMID: 38387393 DOI: 10.1016/j.bioorg.2024.107156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Revised: 01/18/2024] [Accepted: 01/24/2024] [Indexed: 02/24/2024]
Abstract
A real-time and specific for the detection of Monoamine Oxidase B (MAO-B) to investigate the MAO-B-relevant disease development and treatment process is urgently desirable. Here, we utilized MAO-B to catalyze the conversion of propylamino groups to aldehyde groups, which was then quickly followed by a β-elimination process to produce fluorescent probes (FNJP) that may be used to detect MAO-B in vitro and in vivo. The FNJP probe possesses unique properties, including favorable reactivity (Km = 10.8 μM), high cell permeability, and NIR characteristics (λem = 610 nm). Moreover, the FNJP probe showed high selectivity for MAO-B and was able to detect endogenous MAO-B levels from a mixed population of NIH-3 T3 and HepG2 cells. MAO-B expression was found to be increased in cells under lipopolysaccharide-stimulated cellular oxidative stress in neuronal-like SH-SY5Y cells. In addition, the visualization of FNJP for MAO-B activity in zebrafish can be an effective tool for exploring the biofunctions of MAO-B. Considering these excellent properties, the FNJP probe may be a powerful tool for detecting MAO-B levels in living organisms and can be used for accurate clinical diagnoses of related diseases.
Collapse
Affiliation(s)
- Zhengmin Yang
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, PR China; Qiannan Medical College for Nationalities, Duyun 558003, PR China
| | - Tiantian Zhong
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, PR China
| | - Qingyuan Mo
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, PR China
| | - Jiman He
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, PR China
| | - Jia Chong
- Qiannan Medical College for Nationalities, Duyun 558003, PR China
| | - Xianyun Hu
- Qiannan Medical College for Nationalities, Duyun 558003, PR China
| | - Shulin Zhao
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, PR China
| | - Jiangke Qin
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, PR China.
| |
Collapse
|
7
|
Du J, Zhou S, Ma Y, Wei Y, Li Q, Huang H, Chen L, Yang Y, Yu S. Folic acid functionalized gadolinium-doped carbon dots as fluorescence / magnetic resonance imaging contrast agent for targeted imaging of liver cancer. Colloids Surf B Biointerfaces 2024; 234:113721. [PMID: 38176338 DOI: 10.1016/j.colsurfb.2023.113721] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Revised: 11/28/2023] [Accepted: 12/19/2023] [Indexed: 01/06/2024]
Abstract
Gadolinium-doped carbon dots (Gd-CDs), as a new class of nanomaterial, has a wide application prospect in targeted imaging and monitoring diagnosis and treatment of liver cancer because of their good fluorescence (FL)-magnetic resonance (MR) imaging properties. First, Gd-CDs were synthesized by hydrothermal method with gadodiamide as gadolinium source, citric acid as carbon source and silane coupling agent (KH-792) as coupling agent with FL quantum yield (QY) of 48.2%. Then, folic acid (FA), which is highly expressed in liver cancer, was used as a targeting component to modify Gd-CDs to obtain targeted imaging agent (Gd-CDs-FA). The results showed that Gd-CDs and Gd-CDs-FA have low cytotoxicity and good biocompatibility, and the targeting and selectivity of Gd-CDs-FA to HepG2 cells could be observed under confocal laser scanning microscope (CLSM). The T1 longitudinal relaxation rates (r1) of Gd-CDs and Gd-CDs-FA are 15.92 mM-1s-1 and 13.56 mM-1s-1, respectively. They showed good MR imaging ability in vitro and in vivo, and MR imaging in nude mice further proved the targeting imaging performance of Gd-CDs-FA. Therefore, Gd-CDs-FA with higher QY showed good FL-MR targeting imaging ability of liver cancer, which broke through the limitations of single molecular imaging probe in sensitivity and soft tissue resolution. This study provides a new idea for the application of Gd-CDs in FL and MR targeting imaging of liver cancer.
Collapse
Affiliation(s)
- Jinglei Du
- Shanxi Province Cancer Hospital, Shanxi Hospital Affiliated to Cancer Hospital, Chinese Academy of Medical Sciences, Cancer Hospital Affiliated to Shanxi Medical University, Taiyuan 030001, China
| | - Shizhao Zhou
- Shanxi Medical University, Taiyuan 030001, China
| | - Yihua Ma
- Honghui Hospital of Xi' an Jiaotong University, Xi' an 710054, China
| | - Yingying Wei
- Shanxi Medical University, Taiyuan 030001, China
| | - Qiang Li
- Interventional Treatment Department, Second Hospital of Shanxi Medical University, Taiyuan 030001, China
| | - Hui Huang
- Shanxi Province Cancer Hospital, Shanxi Hospital Affiliated to Cancer Hospital, Chinese Academy of Medical Sciences, Cancer Hospital Affiliated to Shanxi Medical University, Taiyuan 030001, China
| | - Lin Chen
- Key Laboratory of Interface Science and Engineering in Advanced Materials, Taiyuan University of Technology, Ministry of Education, Taiyuan 030024, China.
| | - Yongzhen Yang
- Key Laboratory of Interface Science and Engineering in Advanced Materials, Taiyuan University of Technology, Ministry of Education, Taiyuan 030024, China
| | - Shiping Yu
- Shanxi Province Cancer Hospital, Shanxi Hospital Affiliated to Cancer Hospital, Chinese Academy of Medical Sciences, Cancer Hospital Affiliated to Shanxi Medical University, Taiyuan 030001, China.
| |
Collapse
|
8
|
Ye M, Yu X, Yuan Y, He M, Zhuang J, Xiong S, Li J, Wang Y, Li C, Xiong X, Deng H. Design a dual-response two-photon fluorescent probe for simultaneous imaging of mitochondrial viscosity and peroxynitrite in a thrombosis model. Anal Chim Acta 2024; 1287:342088. [PMID: 38182381 DOI: 10.1016/j.aca.2023.342088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Revised: 11/13/2023] [Accepted: 11/28/2023] [Indexed: 01/07/2024]
Abstract
BACKGROUND Venous thromboembolism is a sudden cardiovascular disease that can lead to death, and its pathologic development is closely related to vascular viscosity and inflammation. However, direct evidence from in vivo is really scarce. The key limitation is that the combined probes cannot detect multiple markers simultaneously, which may lead to unreliable results. Therefore, to develop a single probe that can simultaneously monitor the variations of viscosity in the vascular microenvironment as well as inflammation level during venous thrombosis. RESULTS A dual-responsive two-photon fluorescent probe, Cou-ONOO, was designed and synthesized. Cou-ONOO provides a visualization tool for monitoring the viscosity of the vascular as well as the inflammatory marker ONOO‾ during thromboembolism via dual-channel simultaneous imaging. As a single probe that can recognize dual targets, Cou-ONOO effectively avoids the problems from unreliable results caused by complex synthesis and differences in intracellular localization, diffusion, and metabolism of different dyes as using combinatorial probes. Using Cou-ONOO, simultaneous imaging the variations of viscosity and ONOO‾at the cellular and tissue levels was successfully performed. In addition, Cou-ONOO also successfully visualized and tracked the viscosity of the vascular microenvironment and ONOO‾ during venous embolism in mice. SIGNIFICANCE Experimental results show that both viscosity and inflammation are abnormally overexpressed in the microenvironment at the thrombus site during venous thrombosis. An intuitive visualization tool to elucidate the variations of viscosity as well as inflammation level in the vascular microenvironment during thrombosis was provided, which will facilitate a better clinical understanding of the pathological process of thrombosis.
Collapse
Affiliation(s)
- Miantai Ye
- Department of Vascular Surgery, Renmin Hospital of Wuhan University, Wuhan, 430060, China; Key Laboratory of Analytical Chemistry of the State Ethnic Affairs Commission, College of Chemistry and Material Science, South-central Minzu University, Wuhan, 430074, China
| | - Xiaohui Yu
- Department of Vascular Surgery, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Yan Yuan
- Department of Vascular Surgery, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Meng He
- Key Laboratory of Analytical Chemistry of the State Ethnic Affairs Commission, College of Chemistry and Material Science, South-central Minzu University, Wuhan, 430074, China
| | - Junli Zhuang
- Department of Vascular Surgery, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Sizheng Xiong
- Department of Vascular Surgery, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Jie Li
- Department of Vascular Surgery, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Yanying Wang
- Key Laboratory of Analytical Chemistry of the State Ethnic Affairs Commission, College of Chemistry and Material Science, South-central Minzu University, Wuhan, 430074, China
| | - Chunya Li
- Key Laboratory of Analytical Chemistry of the State Ethnic Affairs Commission, College of Chemistry and Material Science, South-central Minzu University, Wuhan, 430074, China.
| | - Xiaoxing Xiong
- Department of Neurosurgery, Renmin Hospital of Wuhan University, Wuhan, 430060, China.
| | - Hongping Deng
- Department of Vascular Surgery, Renmin Hospital of Wuhan University, Wuhan, 430060, China.
| |
Collapse
|
9
|
Wang L, Ma Y, Lin W. A coumarin-based fluorescent probe for highly selective detection of hazardous mercury ions in living organisms. J Hazard Mater 2024; 461:132604. [PMID: 37757555 DOI: 10.1016/j.jhazmat.2023.132604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Revised: 09/18/2023] [Accepted: 09/20/2023] [Indexed: 09/29/2023]
Abstract
In recent years, heavy metal mercury (II) pollutants have caused serious harm to human health and ecosystems. It has become critical to develop simple and highly selective sensing solutions for monitoring mercury (II). In this work, we designed and developed a novel fluorescent probe Coa-SH using the Hg2+-induced chemical reaction as a sensing mechanism. The probe Coa-SH showed high selectivity for the detection of Hg2+ by desulfurization reactions in solution. The test strips prepared with this probe could be applied to detect mercury ions in aqueous solutions. In addition, the probe Coa-SH provided a tool to detect Hg2+ in living systems. In living cells and zebrafish, the probe turned on bright red fluorescent signals in the presence of mercury ions. Importantly, the probe Coa-SH enabled Hg2+ detection in plant onion roots. This work provides an effective method for monitoring mercury ions in the environment and in living organisms.
Collapse
Affiliation(s)
- Lin Wang
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan, Shandong 250022, PR China
| | - Yanyan Ma
- Shandong Provincial Key Laboratory of Marine Monitoring Instrument Equipment Technology, National Engineering and Technological Research Center of Marine Monitoring Equipment, Institute of Oceanographic Instrumentation, Qilu University of Technology (Shandong Academy of Sciences), Qingdao, Shandong 266061, PR China
| | - Weiying Lin
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan, Shandong 250022, PR China; Institute of Optical Materials and Chemical Biology, Guangxi Key Laboratory of Electrochemical Energy Materials, School of Chemistry and Chemical Engineering, Guangxi University, Nanning, Guangxi 530004, PR China.
| |
Collapse
|
10
|
Lightle HE, Kafley P, Lewis TR, Wang RE. Site-specific protein conjugates incorporating Para-Azido-L-Phenylalanine for cellular and in vivo imaging. Methods 2023; 219:95-101. [PMID: 37804961 PMCID: PMC10841489 DOI: 10.1016/j.ymeth.2023.10.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Revised: 10/04/2023] [Accepted: 10/04/2023] [Indexed: 10/09/2023] Open
Abstract
This work features the use of amber suppression-mediated unnatural amino acid (UAA) incorporation into proteins for various imaging purposes. The site-specific incorporation of the UAA, p-azido-L-phenylalanine (pAzF), provides an azide handle that can be used to complete the strain promoted azide-alkyne click cycloaddition (SPAAC) reaction to introduce an imaging modality such as a fluorophore or a positron emission tomography (PET) tracer on the protein of interest (POI). Such methodology can be pursued directly in mammalian cell lines or on proteins expressed in vitro, thereby conferring a homogeneous pool of protein conjugates. A general procedure for UAA incorporation to use with a site-specific protein labeling method is provided allowing for in vitro and in vivo imaging applications based on the representative proteins PTEN and PD-L1. This approach would help elucidate the cellular or in vivo biological activities of the POI.
Collapse
Affiliation(s)
- Hailey E Lightle
- Department of Chemistry, Temple University, 1901 N. 13(th) Street, Philadelphia, PA 19122, USA
| | - Parmila Kafley
- Department of Chemistry, Temple University, 1901 N. 13(th) Street, Philadelphia, PA 19122, USA
| | - Todd R Lewis
- Department of Chemistry, Temple University, 1901 N. 13(th) Street, Philadelphia, PA 19122, USA
| | - Rongsheng E Wang
- Department of Chemistry, Temple University, 1901 N. 13(th) Street, Philadelphia, PA 19122, USA.
| |
Collapse
|
11
|
Wang Y, Zhao L, Xie L, Pang M, Zhang Y, Ran H, Huang J, Wang J, Tao Y, Lyu S. Construction of a robust turn-on fluorescence NIR sensor for rapid detection and imaging of ONOO - in inflammatory models. Spectrochim Acta A Mol Biomol Spectrosc 2023; 295:122624. [PMID: 36933443 DOI: 10.1016/j.saa.2023.122624] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 03/08/2023] [Accepted: 03/09/2023] [Indexed: 06/18/2023]
Abstract
Peroxynitrite (OONO-) is closely related to the occurrence and development of health and inflammatory diseases. The physiological and pathological results of OONO- are related to the local concentration of ONOO-. Therefore, to develop of a simple, rapid and reliable OONO- detection tool is badly needed. In this work, we developed a small-molecule near-infrared (NIR) turn-on fluorescence sensor (NN1), harnessing a well-known response group phenylboronic acid response toward OONO-. It shows high detection sensitivity and yields a ratio (I658/I0) fluorescence enhancement (∼280-fold). In addition, NN1 can be effectively used to detect endogenous and exogenous ONOO- in living inflammatory cells. Notably, NN1 can be applied to OONO- imaging analysis in drug-induced inflammatory mice model with satisfactory results. Therefore, NN1 is a robust molecular biological tool, which has a good prospect in the study of ONOO- and the occurrence and development of inflammatory diseases.
Collapse
Affiliation(s)
- Yan Wang
- Phase I Clinical Trial Ward, Department of Planning and Finance, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, PR China
| | - Lulu Zhao
- College of Pharmacy, International Medical College, and Department of Anesthesiology, Chongqing Medical University, Chongqing 400016, PR China
| | - Liyun Xie
- College of Pharmacy, International Medical College, and Department of Anesthesiology, Chongqing Medical University, Chongqing 400016, PR China
| | - Meiling Pang
- College of Pharmacy, International Medical College, and Department of Anesthesiology, Chongqing Medical University, Chongqing 400016, PR China
| | - Yazhen Zhang
- College of Pharmacy, International Medical College, and Department of Anesthesiology, Chongqing Medical University, Chongqing 400016, PR China
| | - Hongyan Ran
- College of Pharmacy, International Medical College, and Department of Anesthesiology, Chongqing Medical University, Chongqing 400016, PR China
| | - Jianji Huang
- College of Pharmacy, International Medical College, and Department of Anesthesiology, Chongqing Medical University, Chongqing 400016, PR China
| | - Junyi Wang
- College of Pharmacy, International Medical College, and Department of Anesthesiology, Chongqing Medical University, Chongqing 400016, PR China
| | - Yi Tao
- College of Pharmacy, International Medical College, and Department of Anesthesiology, Chongqing Medical University, Chongqing 400016, PR China
| | - Shunqiao Lyu
- Phase I Clinical Trial Ward, Department of Planning and Finance, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, PR China.
| |
Collapse
|
12
|
Wu X, Shen Y, Tan S, Jiang X, Chen Z, Yu Q, Chen H, Zhuang Y, Zeng H, Fu X, Zhou H, Dou Z, Chen G, Li X. Multiscale imaging of peroxynitrite in gliomas with a blood-brain barrier permeable probe reveals its potential as a biomarker and target for glioma treatment. Biosens Bioelectron 2023; 236:115415. [PMID: 37245459 DOI: 10.1016/j.bios.2023.115415] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2023] [Revised: 05/19/2023] [Accepted: 05/19/2023] [Indexed: 05/30/2023]
Abstract
Cancer development is driven by diverse processes, and metabolic alterations are among the primary characteristics. Multiscale imaging of aberrant metabolites in cancer is critical to understand the pathology and identify new targets for treatment. While peroxynitrite (ONOO-) is reported being enriched in some tumors and plays important tumorigenic roles, whether it is upregulated in gliomas remains unexplored. To determine the levels and roles of ONOO- in gliomas, efficient tools especially those with desirable blood-brain barrier (BBB) permeability and can realize the in situ imaging of ONOO- in multiscale glioma-related samples are indispensable. Herein, we proposed a strategy of physicochemical property-guided probe design, which resulted in the development of a fluorogenic probe NOSTracker for smartly tracking ONOO-. The probe showed sufficient BBB permeability. ONOO- triggered oxidation of its arylboronate group was automatically followed by a self-immolative cleavage of a fluorescence-masking group, liberating its fluorescence signal. The probe was not only highly sensitive and selective towards ONOO-, but its fluorescence favored desirable stability in various complex biological milieus. Guaranteed by these properties, multiscale imaging of ONOO- was realized in vitro in patient-derived primary glioma cells, ex vivo in clinical glioma slices, and in vivo in the glioma of live mice. The results showed the upregulation of ONOO- in gliomas. Furthermore, a specific ONOO- scavenger uric acid (UA) was pharmaceutically used to downregulate ONOO- in glioma cell lines, and an anti-proliferative effect was observed. These results taken together imply the potential of ONOO- as a biomarker and target for glioma treatment, and propose NOSTracker as a reliable tool to further explore the role of ONOO- in glioma development.
Collapse
Affiliation(s)
- Xinyan Wu
- The Second Affiliated Hospital, Key Laboratory of Precise Treatment and Clinical Translational Research of Neurological Diseases, School of Medicine, Zhejiang University, Hangzhou, 310058, China
| | - Yikai Shen
- Institute of Drug Discovery and Design, Zhejiang Province Key Laboratory of Anti-Cancer Drug Research, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058, China; Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Shuyu Tan
- Institute of Drug Discovery and Design, Zhejiang Province Key Laboratory of Anti-Cancer Drug Research, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Xuefeng Jiang
- Institute of Drug Discovery and Design, Zhejiang Province Key Laboratory of Anti-Cancer Drug Research, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Zihang Chen
- The Second Affiliated Hospital, Key Laboratory of Precise Treatment and Clinical Translational Research of Neurological Diseases, School of Medicine, Zhejiang University, Hangzhou, 310058, China
| | - Qian Yu
- The Second Affiliated Hospital, Key Laboratory of Precise Treatment and Clinical Translational Research of Neurological Diseases, School of Medicine, Zhejiang University, Hangzhou, 310058, China
| | - Huaijun Chen
- The Second Affiliated Hospital, Key Laboratory of Precise Treatment and Clinical Translational Research of Neurological Diseases, School of Medicine, Zhejiang University, Hangzhou, 310058, China
| | - Yilian Zhuang
- Institute of Drug Discovery and Design, Zhejiang Province Key Laboratory of Anti-Cancer Drug Research, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Hanhai Zeng
- The Second Affiliated Hospital, Key Laboratory of Precise Treatment and Clinical Translational Research of Neurological Diseases, School of Medicine, Zhejiang University, Hangzhou, 310058, China
| | - Xiongjie Fu
- The Second Affiliated Hospital, Key Laboratory of Precise Treatment and Clinical Translational Research of Neurological Diseases, School of Medicine, Zhejiang University, Hangzhou, 310058, China
| | - Hang Zhou
- The Second Affiliated Hospital, Key Laboratory of Precise Treatment and Clinical Translational Research of Neurological Diseases, School of Medicine, Zhejiang University, Hangzhou, 310058, China
| | - Zhangqi Dou
- The Second Affiliated Hospital, Key Laboratory of Precise Treatment and Clinical Translational Research of Neurological Diseases, School of Medicine, Zhejiang University, Hangzhou, 310058, China
| | - Gao Chen
- The Second Affiliated Hospital, Key Laboratory of Precise Treatment and Clinical Translational Research of Neurological Diseases, School of Medicine, Zhejiang University, Hangzhou, 310058, China.
| | - Xin Li
- Institute of Drug Discovery and Design, Zhejiang Province Key Laboratory of Anti-Cancer Drug Research, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058, China; Innovation Center of Yangtze River Delta, Zhejiang University, China; Hangzhou Institute of Innovative Medicine, Zhejiang University, China.
| |
Collapse
|
13
|
Wang L, Ma Y, Li S, Lin W. Regulation of the alkyl chain of fluorescent probes to selectively target the cell membrane or mitochondria in living cells. Spectrochim Acta A Mol Biomol Spectrosc 2023; 290:122280. [PMID: 36586172 DOI: 10.1016/j.saa.2022.122280] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 12/19/2022] [Accepted: 12/24/2022] [Indexed: 06/17/2023]
Abstract
The visualization of cell membrane and mitochondrial behavior in living cells is of great life science value, but challenging due to the lack of ideal probes. In this work, two novel fluorescent probes based on different lengths of alkyl chains were reported for selective targeting of cell membranes or mitochondria of living cells. The probe CTM (1-Octadecyl-4-[9-ethyl-6-(diphenylamino)-9H-carbazol-3-yl] pyridinium) achieved cell membrane-specific staining in cells. Moreover, the probe CTM could monitor cell membrane damage through subcellular migration. Once the cell membrane was damaged, the probe CTM migrated into the mitochondria as a signal reporter. In addition, the probe MTM (1-Dodecly-4-[9-ethyl-6-(diphenylamino)-9H-carbazol-3-yl] pyridinium) with the shorter alkyl chain bearing the same skeleton structure penetrated the cell membrane and exhibited high affinity to mitochondria. This work will provide a useful tool to visualize the behavior of cell membranes and mitochondria in living cells.
Collapse
Affiliation(s)
- Lin Wang
- Institute of Fluorescent Probes for Biological Imaging, School of Chemistry and Chemical Engineering, School of Materials Science and Engineering, University of Jinan, Jinan, Shandong 250022, PR China
| | - Yanyan Ma
- Shandong Provincial Key Laboratory of Marine Monitoring Instrument Equipment Technology, National Engineering and Technological Research Center of Marine Monitoring Equipment, Institute of Oceanographic Instrumentation, Qilu University of Technology (Shandong Academy of Sciences), Qingdao, Shandong 266061, PR China
| | - Shifei Li
- Institute of Fluorescent Probes for Biological Imaging, School of Chemistry and Chemical Engineering, School of Materials Science and Engineering, University of Jinan, Jinan, Shandong 250022, PR China
| | - Weiying Lin
- Institute of Fluorescent Probes for Biological Imaging, School of Chemistry and Chemical Engineering, School of Materials Science and Engineering, University of Jinan, Jinan, Shandong 250022, PR China; Guangxi Key Laboratory of Electrochemical Energy Materials, Institute of Optical Materials and Chemical Biology, School of Chemistry and Chemical Engineering, Guangxi University, Nanning, Guangxi 530004, PR China.
| |
Collapse
|
14
|
Zheng X, Feng Q, Chen J, Yan J, Li X, Guo L. Quantification analysis of microplastics released from disposable polystyrene tableware with fluorescent polymer staining. Sci Total Environ 2023; 864:161155. [PMID: 36572298 DOI: 10.1016/j.scitotenv.2022.161155] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Revised: 11/26/2022] [Accepted: 12/19/2022] [Indexed: 06/17/2023]
Abstract
Ingesting microplastics (MPs) from plastic tableware is an important source of health risk to human bodies. However, the comprehensive information of MPs released from disposable tableware has not been explored. Herein, a new visual quantification method for polystyrene MPs is proposed with carbon nitride fluorescent polymers staining, which can overcome the disadvantages of high signal background and photobleaching derived from organic dyes staining. Combining with fluorescence microscope and ImageJ software, the quantity, shape, and size distribution of MPs carried by the brand-new disposable polystyrene tableware (DPT) samples before usage and released from the clean DPT samples in different simulated usage scenes were studied. The brand-new DPT samples were found to carry a large number of MPs particles and the clean DPT samples could release MPs during usage. Fiber and fragment are the main morphology of the detected MPs and fiber accounts for 45-52 %. The particles with size <50 μm are the majority of the detected MPs and the distribution fraction of MPs particles is gradually decreased with the raising of particle size within 50 μm. The released MPs particles are increased with the raising of contact time and temperature, and greatly boosted for the DPT samples with cracks. The DPT samples are more like to release MPs in weak acidic condition (pH 4.0) than in weak alkaline (pH 8.3) and neutral (pH 7.0) conditions. The obtained results help to assess the food safety of tack-out food and the health risk of MPs exposure to human.
Collapse
Affiliation(s)
- Xueyi Zheng
- Ministry of Education Key Laboratory for Analytical Science of Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, College of Chemistry, Fuzhou University, Fuzhou 350116, China
| | - Qiaocheng Feng
- Ministry of Education Key Laboratory for Analytical Science of Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, College of Chemistry, Fuzhou University, Fuzhou 350116, China
| | - Jingru Chen
- Ministry of Education Key Laboratory for Analytical Science of Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, College of Chemistry, Fuzhou University, Fuzhou 350116, China
| | - Jiaquan Yan
- Fujian Provincial Key Laboratory of Information Processing and Intelligent Control, College of Computer and Control Engineering, Minjiang University, Fuzhou, 350121, China
| | - Xiaojing Li
- College of Environment & Safety Engineering, Fuzhou University, Fuzhou 350108, China
| | - Liangqia Guo
- Ministry of Education Key Laboratory for Analytical Science of Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, College of Chemistry, Fuzhou University, Fuzhou 350116, China.
| |
Collapse
|
15
|
Wang K, Yao K, Chen XY, Wen DK, Qin YJ, Hu ZG, Yang YS. Discovery of the cysteine dynamics during the development and treatment of diabetic process by fluorescent imaging. Redox Biol 2023; 62:102660. [PMID: 36906953 PMCID: PMC10023934 DOI: 10.1016/j.redox.2023.102660] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Revised: 03/05/2023] [Accepted: 03/06/2023] [Indexed: 03/09/2023] Open
Abstract
Herein, a novel fluorescent probe RhoDCM was developed for monitoring the cysteine (Cys) dynamics. For the first time, the Cys-triggered implement was applied in relatively complete diabetic mice models. The response of RhoDCM towards Cys suggested advantages including practical sensitivity, high selectivity, rapid reaction, and steadiness in various pH and temperature conditions. RhoDCM could basically monitor the intracellular Cys level, both exogenous and endogenous. It could further monitor the glucose level via detecting consumed Cys. Furthermore, the diabetic mice models including the no diabetic control group, the induced model groups by streptozocin (STZ) or alloxan, and the treatment groups induced by STZ and treated with vildagliptin (Vil), dapagliflozin (DA), or metformin (Metf) were constructed. The models were checked by oral glucose tolerance test and significant liver-related serum indexes. Based on the models, the in vivo imaging and penetrating depth fluorescence imaging both indicated that RhoDCM could characterize the status of the development and treatment in the diabetic process via monitoring the Cys dynamics. Consequently, RhoDCM seemed beneficial for inferring the order of severity in the diabetic process and evaluating the potency of therapeutic schedules, which might be informatic for correlated investigations.
Collapse
Affiliation(s)
- Kai Wang
- Department of Medical Laboratory, Affiliated Children's Hospital of Jiangnan University, Wuxi, Jiangsu, China; State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, 210023, China
| | - Kun Yao
- School of Pharmacy, Nanjing Medical University, Nanjing, 211166, China; Laboratory of Medicinal Chemical Biology, Department of Medicinal Chemistry, College of Pharmaceutical Sciences, Soochow University, Suzhou, 215123, China
| | - Xu-Yang Chen
- Department of Medical Laboratory, Affiliated Children's Hospital of Jiangnan University, Wuxi, Jiangsu, China; State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, 210023, China
| | - Da-Ke Wen
- Department of Medical Laboratory, Affiliated Children's Hospital of Jiangnan University, Wuxi, Jiangsu, China
| | - Ya-Juan Qin
- School of Pharmacy, Nanjing Medical University, Nanjing, 211166, China
| | - Zhi-Gang Hu
- Department of Medical Laboratory, Affiliated Children's Hospital of Jiangnan University, Wuxi, Jiangsu, China.
| | - Yu-Shun Yang
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, 210023, China; Jinhua Advanced Research Institute, Jinhua, 321019, China.
| |
Collapse
|
16
|
Wei H, Wang Y, Chen Q, Sun Y, Yue T, Dong B. Development of an Endoplasmic Reticulum-targeting Fluorescent Probe for the Imaging of Superoxide Anion in Living Cells. J Fluoresc 2023; 33:509-15. [PMID: 36449229 DOI: 10.1007/s10895-022-03079-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Accepted: 11/08/2022] [Indexed: 12/05/2022]
Abstract
Superoxide anion (O2•-) is an important reactive oxygen species (ROS), and plays critical roles in biological systems. ER stress has close relation with many metabolic diseases, and could lead to the abnormal production of ROS including O2•-. Herein, we present an ER-targeting probe (ER-Tf) for the detection of O2•- in living cells. The probe ER-Tf used triflate as the response site for O2•-, and employed p-methylbenzenesulfonamide as ER-targeting moiety. In response to O2•-, the triflate of the probe ER-Tf converted to hydroxyl group, providing strong blue emission under the excitation of ultraviolet light. The probe ER-Tf exhibited high sensitivity and selectivity to O2•-. Bioimaging experiments showed that the probe ER-Tf can be applied to detect O2•- at ER, and also demonstrated that rotenone could increase the generation of O2•- in living cells, while the O2•- level at ER showed no remarkable change during ferroptosis.
Collapse
|
17
|
Tutty MA, Prina-Mello A. A Method for the In Vitro Cytotoxicity Assessment of Anti-cancer Compounds and Materials Using High Content Screening Analysis. Methods Mol Biol 2023; 2645:241-249. [PMID: 37202624 DOI: 10.1007/978-1-0716-3056-3_15] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
To date, there is a large bottleneck associated with cancer drug design and development: a lack of appropriate methodologies for screening their potential toxicity. This issue not only causes a high attrition rate for these compounds but also slows down the drug discovery process in general. To overcome this problem, robust, accurate, and reproducible methodologies for assessing anti-cancer compounds are essential. Multiparametric technique and high-throughput analysis, in particular, are favored due to the time- and cost-effective way in which they assess large panels of materials, and due to their large informational output. Following extensive work within our group, we have developed a protocol for assessing the toxicity of anti-cancer compounds using a high-content screening and analysis (HCSA) platform, which is both time-effective and reproducible.
Collapse
Affiliation(s)
- Melissa Anne Tutty
- Laboratory for Biological Characterization of Advanced Materials (LBCAM), Trinity Translational Medicine Institute, Trinity Centre for Health Sciences, Trinity College Dublin, Dublin, Ireland
- Nanomedicine and Molecular Imaging Group, Trinity Translational Medicine Institute (TTMI), School of Medicine, Trinity College Dublin, Dublin, Ireland
| | - Adriele Prina-Mello
- Laboratory for Biological Characterization of Advanced Materials (LBCAM), Trinity Translational Medicine Institute, Trinity Centre for Health Sciences, Trinity College Dublin, Dublin, Ireland.
- Nanomedicine and Molecular Imaging Group, Trinity Translational Medicine Institute (TTMI), School of Medicine, Trinity College Dublin, Dublin, Ireland.
- Trinity St. James's Cancer Institute, St. James's Hospital, Trinity College Dublin, Dublin, Ireland.
- Advanced Materials and Bioengineering Research (AMBER) Centre, CRANN Institute, Trinity College Dublin, Dublin, Ireland.
| |
Collapse
|
18
|
Chen Z, Lv W, Yang C, Ping M, Fu F. Sensitive detection and intracellular imaging of free copper ions based on DNA-templated silver nanoclusters aggregation-inducing fluorescence enhancement effect. Spectrochim Acta A Mol Biomol Spectrosc 2022; 283:121734. [PMID: 35970089 DOI: 10.1016/j.saa.2022.121734] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Revised: 07/27/2022] [Accepted: 08/06/2022] [Indexed: 06/15/2023]
Abstract
Free copper ions (Cu+ and Cu2+) have critical toxicity to cells, although copper is an essential element for human body. Hence, sensitive monitoring is crucial to avoid over intake of Cu+/Cu2+. We herein designed a ssDNA sequence (A31) for synthetizing A31-templated silver nanoclusters (AgNCs), and demonstrated that Cu+/Cu2+ can induce the aggregation of A31-templated AgNCs and thus greatly enhanced the fluorescence emission of A31-templated AgNCs. Based on Cu+/Cu2+-induced fluorescence enhancement effect of A31-templated AgNCs, a label-free and signal-on fluorescent sensing platform was developed for the specific and sensitive detection of Cu+/Cu2+ in biological samples and intracellular imaging of Cu+/Cu2+ in cells. The signal-on fluorescent sensing platform could be used to rapidly detect Cu+ and Cu2+ with a detection limit of 0.1 µM within 30 min., and to perform the intracellular imaging of Cu+ and Cu2+ in cells with good cell permeability and biocompatibility. By using the signal-on fluorescent sensing platform, we have successfully detected Cu+ and Cu2+ in cells fluids and human serum with a recovery of 90-104% and a RSD (n = 5) < 5%, and performed the imaging of Cu+/Cu2+ in Hela cells. The developed fluorescent sensing platform has obvious analytical and imaging advantages such as signal-on, simple operation, short analysis time, both Cu+ and Cu2+ detection, similar or higher sensitivity, good cell permeability and biocompatibility, which promising a reliable approach for the rapid and on-site detection or imaging of free copper ions in biological samples in clinical diagnosis.
Collapse
Affiliation(s)
- Zhiqiang Chen
- Key Laboratory for Analytical Science of Food Safety and Biology of MOE, Fujian Provincial Key Lab of Analysis and Detection for Food Safety, College of Chemistry, Fuzhou University, Fuzhou, Fujian 350116, China; College of Food and Biological Engineering, Zhangzhou Institute of Technology, Zhangzhou, Fujian 36300, China
| | - Wenchao Lv
- Key Laboratory for Analytical Science of Food Safety and Biology of MOE, Fujian Provincial Key Lab of Analysis and Detection for Food Safety, College of Chemistry, Fuzhou University, Fuzhou, Fujian 350116, China
| | - Chen Yang
- Key Laboratory for Analytical Science of Food Safety and Biology of MOE, Fujian Provincial Key Lab of Analysis and Detection for Food Safety, College of Chemistry, Fuzhou University, Fuzhou, Fujian 350116, China
| | - Meiling Ping
- Key Laboratory for Analytical Science of Food Safety and Biology of MOE, Fujian Provincial Key Lab of Analysis and Detection for Food Safety, College of Chemistry, Fuzhou University, Fuzhou, Fujian 350116, China
| | - FengFu Fu
- Key Laboratory for Analytical Science of Food Safety and Biology of MOE, Fujian Provincial Key Lab of Analysis and Detection for Food Safety, College of Chemistry, Fuzhou University, Fuzhou, Fujian 350116, China.
| |
Collapse
|
19
|
Betzer O, Gao Y, Shamul A, Motiei M, Sadan T, Yehuda R, Atkins A, Cohen CJ, Shen M, Shi X, Popovtzer R. Multifunctional nanoprobe for real-time in vivo monitoring of T cell activation. Nanomedicine 2022; 46:102596. [PMID: 36031044 DOI: 10.1016/j.nano.2022.102596] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Revised: 08/03/2022] [Accepted: 08/08/2022] [Indexed: 06/15/2023]
Abstract
Genetically engineered T cells are a powerful new modality for cancer immunotherapy. However, their clinical application for solid tumors is challenging, and crucial knowledge on cell functionality in vivo is lacking. Here, we fabricated a nanoprobe composed of dendrimers incorporating a calcium sensor and gold nanoparticles, for dual-modal monitoring of engineered T cells within a solid tumor. T cells engineered to express a melanoma-specific T-cell receptor and loaded with the nanoprobe were longitudinally monitored within melanoma xenografts in mice. Fluorescent imaging of the nanoprobe's calcium sensor revealed increased intra-tumoral activation of the T cells over time, up to 24 h. Computed tomography imaging of the nanoprobe's gold nanoparticles revealed the cells' intra-tumoral distribution pattern. Quantitative analysis revealed the intra-tumoral T cell quantities. Thus, this nanoprobe reveals intra-tumoral persistence, penetration and functional status of genetically engineered T cells, which can advance T cell-based immunotherapy and promote next-generation live cell imaging.
Collapse
Affiliation(s)
- Oshra Betzer
- The Alexander Kofkin Faculty of Engineering, Bar-Ilan University, Ramat Gan 5290002, Israel; Bar-Ilan Institute for Nanotechnology and Advanced Materials (BINA), Bar-Ilan University, Ramat Gan 5290002, Israel
| | - Yue Gao
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, International Joint Laboratory for Advanced Fiber and Low-dimension Materials, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, PR China
| | - Astar Shamul
- The Mina and Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Ramat Gan 5290002, Israel
| | - Menachem Motiei
- The Alexander Kofkin Faculty of Engineering, Bar-Ilan University, Ramat Gan 5290002, Israel; Bar-Ilan Institute for Nanotechnology and Advanced Materials (BINA), Bar-Ilan University, Ramat Gan 5290002, Israel
| | - Tamar Sadan
- The Alexander Kofkin Faculty of Engineering, Bar-Ilan University, Ramat Gan 5290002, Israel
| | - Ronen Yehuda
- The Mina and Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Ramat Gan 5290002, Israel
| | - Ayelet Atkins
- The Mina and Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Ramat Gan 5290002, Israel
| | - Cyrille J Cohen
- The Mina and Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Ramat Gan 5290002, Israel
| | - Mingwu Shen
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, International Joint Laboratory for Advanced Fiber and Low-dimension Materials, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, PR China
| | - Xiangyang Shi
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, International Joint Laboratory for Advanced Fiber and Low-dimension Materials, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, PR China.
| | - Rachela Popovtzer
- The Alexander Kofkin Faculty of Engineering, Bar-Ilan University, Ramat Gan 5290002, Israel; Bar-Ilan Institute for Nanotechnology and Advanced Materials (BINA), Bar-Ilan University, Ramat Gan 5290002, Israel.
| |
Collapse
|
20
|
Rosenbohm J, Minnick G, Safa BT, Esfahani AM, Jin X, Zhai H, Lavrik NV, Yang R. A multi-material platform for imaging of single cell-cell junctions under tensile load fabricated with two-photon polymerization. Biomed Microdevices 2022; 24:33. [PMID: 36207557 DOI: 10.1007/s10544-022-00633-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/04/2022] [Indexed: 11/29/2022]
Abstract
We previously reported a single-cell adhesion micro tensile tester (SCAμTT) fabricated from IP-S photoresin with two-photon polymerization (TPP) for investigating the mechanics of a single cell-cell junction under defined tensile loading. A major limitation of the platform is the autofluorescence of IP-S, the photoresin for TPP fabrication, which significantly increases background signal and makes fluorescent imaging of stretched cells difficult. In this study, we report the design and fabrication of a new SCAμTT platform that mitigates autofluorescence and demonstrate its capability in imaging a single cell pair as its mutual junction is stretched. By employing a two-material design using IP-S and IP-Visio, a photoresin with reduced autofluorescence, we show a significant reduction in autofluorescence of the platform. Further, by integrating apertures onto the substrate with a gold coating, the influence of autofluorescence on imaging is almost completely mitigated. With this new platform, we demonstrate the ability to image a pair of epithelial cells as they are stretched up to 250% strain, allowing us to observe junction rupture and F-actin retraction while simultaneously recording the accumulation of over 800 kPa of stress in the junction. The platform and methodology presented here can potentially enable detailed investigation of the mechanics of and mechanotransduction in cell-cell junctions and improve the design of other TPP platforms in mechanobiology applications.
Collapse
Affiliation(s)
- Jordan Rosenbohm
- Department of Mechanical and Materials Engineering, University of Nebraska-Lincoln, Lincoln, NE, 68588, USA
| | - Grayson Minnick
- Department of Mechanical and Materials Engineering, University of Nebraska-Lincoln, Lincoln, NE, 68588, USA
| | - Bahareh Tajvidi Safa
- Department of Mechanical and Materials Engineering, University of Nebraska-Lincoln, Lincoln, NE, 68588, USA
| | - Amir Monemian Esfahani
- Department of Mechanical and Materials Engineering, University of Nebraska-Lincoln, Lincoln, NE, 68588, USA
| | - Xiaowei Jin
- Department of Mechanical and Materials Engineering, University of Nebraska-Lincoln, Lincoln, NE, 68588, USA
| | - Haiwei Zhai
- Department of Mechanical and Materials Engineering, University of Nebraska-Lincoln, Lincoln, NE, 68588, USA
| | - Nickolay V Lavrik
- Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, TN, 37831-6054, USA.
| | - Ruiguo Yang
- Department of Mechanical and Materials Engineering, University of Nebraska-Lincoln, Lincoln, NE, 68588, USA.
- Nebraska Center for Integrated Biomolecular Communication, University of Nebraska-Lincoln, Lincoln, NE, 68588, USA.
| |
Collapse
|
21
|
Lei Y, Xiao Y, Yuan L, Ma C, Yu H, Zhang X, Zhang Y, Xiao Y. A new six-membered spiro-rhodamine probe for Cu 2+ and its imaging in mitochondria and lysosomes of Hela cells. Spectrochim Acta A Mol Biomol Spectrosc 2022; 278:121334. [PMID: 35576842 DOI: 10.1016/j.saa.2022.121334] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 04/06/2022] [Accepted: 04/28/2022] [Indexed: 06/15/2023]
Abstract
Different from five-membered rhodamine spirolactam (Rh-OH), a new six-membered spiro-rhodamine probe (SRh-OH) bearing urea structure has been developed in this paper. Compared with five-membered Rh-OH, six-membered SRh-OH exhibited higher selectivity and sensitivity to Cu2+ in aqueous solution. Upon addition of 10 equiv. Cu2+, the molar extinction coefficient of SRh-OH at 563 nm can be up to 4.73 × 104 Lmol-1cm-1. In the range of Cu2+ from 0 to 28 μM, there was an excellent linear relationship between the absorption or emission intensity and Cu2+ concentration. The detection limit of SRh-OH was as low as 26 nM (S/N = 3). The reversible binding mode of SRh-OH with Cu2+ was further confirmed by S2- and EDTA addition. Bio-imaging showed SRh-OH can map the distribution of Cu2+ not only in mitochondria but also in lysosomes of Hela cells.
Collapse
Affiliation(s)
- Yongsheng Lei
- College of Environmental Sciences, Liaoning University, Shenyang 110036, PR China
| | - Yannan Xiao
- College of Environmental Sciences, Liaoning University, Shenyang 110036, PR China
| | - Lin Yuan
- College of Environmental Sciences, Liaoning University, Shenyang 110036, PR China
| | - Chen Ma
- College of Environmental Sciences, Liaoning University, Shenyang 110036, PR China
| | - Haibo Yu
- College of Environmental Sciences, Liaoning University, Shenyang 110036, PR China; State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, PR China.
| | - Xinfu Zhang
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, PR China.
| | - Ying Zhang
- College of Environmental Sciences, Liaoning University, Shenyang 110036, PR China.
| | - Yi Xiao
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, PR China
| |
Collapse
|
22
|
Wang S, Liu W, Zheng X, Ren H, Wu J, Li F, Wang P. A ratiometric fluorescent probe for detection of γ-glutamyl transpeptidase in blood serum and living cells. Spectrochim Acta A Mol Biomol Spectrosc 2022; 278:121325. [PMID: 35567819 DOI: 10.1016/j.saa.2022.121325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Revised: 04/24/2022] [Accepted: 04/25/2022] [Indexed: 06/15/2023]
Abstract
γ-Glutamyl transpeptidase (GGT) is one of the biomarker of cancer, hepatitis, and numerous other diseases. The accurate analysis of GGT is useful for the early diagnosis of these diseases. In this work, Probe 1, a ratiometric fluorescent probe based on 2,3,5,6-tetrafluoroterephthalonitrile, was designed for GGT detection. The results indicated that Probe 1 can sensitively and selectively detect GGT in phosphate buffered solution and complex biological systems (e.g., blood serum). Furthermore, Probe 1 has been successfully applied for ratiometric imaging of GGT in cancer cells and normal cells.
Collapse
Affiliation(s)
- Shuai Wang
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials and City U-CAS Joint Laboratory of Functional Materials and Devices, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, PR China; School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Weimin Liu
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials and City U-CAS Joint Laboratory of Functional Materials and Devices, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, PR China; School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing 100049, PR China.
| | - Xiuli Zheng
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials and City U-CAS Joint Laboratory of Functional Materials and Devices, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, PR China
| | - Haohui Ren
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials and City U-CAS Joint Laboratory of Functional Materials and Devices, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, PR China
| | - Jiasheng Wu
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials and City U-CAS Joint Laboratory of Functional Materials and Devices, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, PR China
| | - Fan Li
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials and City U-CAS Joint Laboratory of Functional Materials and Devices, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, PR China
| | - Pengfei Wang
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials and City U-CAS Joint Laboratory of Functional Materials and Devices, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, PR China; School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing 100049, PR China.
| |
Collapse
|
23
|
Zheng SY, Tang WQ, Zhang M, Yan JR, Liu F, Yan GP, Liang SC, Wang YF. Dual-modal polypeptide-containing contrast agents for magnetic resonance/fluorescence imaging. Bioorg Chem 2022; 129:106161. [PMID: 36162287 DOI: 10.1016/j.bioorg.2022.106161] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2022] [Revised: 09/04/2022] [Accepted: 09/12/2022] [Indexed: 12/23/2022]
Abstract
Dual-modal magnetic resonance/fluorescent imaging (MRI/FI) attracts moreandmoreattentions in diagnosis of tumors. A corresponding dual-modal imaging agent with sufficient tumor sensitivity and specificity should be matched to improve imaging quality. Tripeptide (RGD) and pentapeptide (YIGSR) were selected as the tumor-targeting groups and attached to gadolinium diethylenetriaminepentaacetic acid (Gd-DTPA) and rhodamine B (RhB), and then make two novel polypeptide-based derivatives (RGD-Gd-DTPA-RhB and YIGSR-Gd-DTPA-RhB), respectively. These derivatives were further characterized and their properties, such as cell uptake, cell cytotoxicity, MRI and FI assay, were measured. YIGSR-Gd-DTPA-RhB and RGD-Gd-DTPA-RhB had high relaxivity, good tumor-targeting property, low cell cytotoxicity and good red FI in B16F10 melanoma cells. Moreover, YIGSR-Gd-DTPA-RhB and RGD-Gd-DTPA-RhB possessed high uptake to B16F10 melanoma, and then achieve highly enhanced FI and MRI of tumors in mice for a prolonged time. Therefore, YIGSR-Gd-DTPA-RhB and RGD-Gd-DTPA-RhB can be applied as the potential agents for tumor targeted MRI/FI in vivo.
Collapse
|
24
|
Boussedra S, Benoit L, Koual M, Bentivegna E, Nguyen-Xuan HT, Bats AS, Azaïs H. Fluorescence guided surgery to improve peritoneal cytoreduction in epithelial ovarian cancer: A systematic review of available data. Eur J Surg Oncol 2022; 48:1217-1223. [PMID: 35227555 DOI: 10.1016/j.ejso.2022.02.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Revised: 02/10/2022] [Accepted: 02/17/2022] [Indexed: 11/19/2022] Open
Abstract
During surgery for advanced epithelial ovarian cancer (EOC), the most important prognostic factor is the absence of residual tumor. Invisible microscopic peritoneal metastasis (mPM) are not removed during surgery and can be responsible of peritoneal recurrences. The aim of this current systematic review is to assess the role of fluorescence in evaluating mPM in EOC. We performed a systematic review using bibliographic citations from PubMed, Clinical Trials.gov, Embase, Cochrane Library, and Web of Science databases. MeSH terms for fluorescence, EOC and peritoneal carcinomatosis were combined and not restricted to the English language. The final search was performed on September 1rst, 2021. The primary outcome was to determine the diagnostic accuracy of fluorescence. We also reviewed the different techniques used. Eighty-seven studies were identified. Of these, 10 were included for analysis. The sensitivity and specificity of fluorescence ranged between 66.7-100% and 54.2-100%, respectively. Most importantly, the negative predictive value (NPV) ranged from 90 to 100% Due to the heterogeneity of the studies, no consensus was reached concerning the optimal use of fluorescence in terms of type of dye, type and timing of injection and imager to use. No adverse event was reported. Fluorescence can safely be used in EOC to evaluate mPM with a high NPV. However, a randomized controlled trial is needed to homogenize current practice.
Collapse
Affiliation(s)
- Safia Boussedra
- Department of Medical and Surgical Sciences (DIMEC), IRCCS Sant'Orsola-Malpighi, Obstetric and Gynecologic Unit, University of Bologna, Bologna, Italy; Gynecologic and Breast Oncologic Surgery Department, Georges Pompidou European Hospital, APHP. Centre, Université de Paris, Paris, France
| | - Louise Benoit
- Gynecologic and Breast Oncologic Surgery Department, Georges Pompidou European Hospital, APHP. Centre, Université de Paris, Paris, France; INSERM UMR-S 1124, Université de Paris, Centre Universitaire des Saint-Père, Paris, France.
| | - Meriem Koual
- Gynecologic and Breast Oncologic Surgery Department, Georges Pompidou European Hospital, APHP. Centre, Université de Paris, Paris, France; INSERM UMR-S 1124, Université de Paris, Centre Universitaire des Saint-Père, Paris, France
| | - Enrica Bentivegna
- Gynecologic and Breast Oncologic Surgery Department, Georges Pompidou European Hospital, APHP. Centre, Université de Paris, Paris, France
| | - Huyen-Thu Nguyen-Xuan
- Gynecologic and Breast Oncologic Surgery Department, Georges Pompidou European Hospital, APHP. Centre, Université de Paris, Paris, France
| | - Anne-Sophie Bats
- Gynecologic and Breast Oncologic Surgery Department, Georges Pompidou European Hospital, APHP. Centre, Université de Paris, Paris, France; INSERM UMR-S 1147, Université de Paris, Centre de Recherche des Cordeliers, Paris, France
| | - Henri Azaïs
- Gynecologic and Breast Oncologic Surgery Department, Georges Pompidou European Hospital, APHP. Centre, Université de Paris, Paris, France; INSERM UMR-S 1147, Université de Paris, Centre de Recherche des Cordeliers, Paris, France
| |
Collapse
|
25
|
von Kroge P, Russ D, Wagner J, Grotelüschen R, Reeh M, Izbicki JR, Mann O, Wipper SH, Duprée A. Quantification of gastric tube perfusion following esophagectomy using fluorescence imaging with indocyanine green. Langenbecks Arch Surg 2022; 407:2693-2701. [PMID: 35581393 DOI: 10.1007/s00423-022-02546-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Accepted: 05/09/2022] [Indexed: 10/18/2022]
Abstract
INTRODUCTION Anastomotic leakage (AL) remains a prevalent and life-threatening complication after esophagectomy. Gastric tube perfusion assessment using indocyanine green fluorescence imaging (ICG-FI) has been published in several studies and appears to be a promising tool to reduce AL rates by changing the surgical approach, namely by an intraoperative evaluation of the anastomosis localization. METHODS In this study, gastric tube perfusion was quantified by using ICG-FI in 20 high-risk patients undergoing esophagectomy. From a time-dependent fluorescence intensity curve, the following three parameters were evaluated: slope of fluorescence intensity (SFI), background subtracted peak fluorescence intensity (BSFI), and time to slope (TTS). RESULTS The values between pyloric region and tip showed a similar downward trend and SFI and BSFI significantly correlated with the distance to the pyloric region. SFI and BSFI were significantly decreased at the tip of the gastric tube. The placement of anastomosis in an area with homogenous fluorescence pattern was correlated with no AL in 92.9% of cases. An inhomogeneous fluorescence pattern at anastomotic site was a risk factor for the occurrence of an AL (p < 0.05). Reduction of perfusion up to 32% using SFI and up to 23% using BSFI was not associated with AL. CONCLUSION ICG-FI can be used to quantify the gastric tube perfusion by calculating SFI, BSFI, and TTS. The anastomosis should be created in areas with homogeneous fluorescence pattern. A reduction in blood flow of up to 32% can be accepted without causing an increased rate of insufficiency.
Collapse
Affiliation(s)
- Philipp von Kroge
- Department of General, Visceral and Thoracic Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
| | - Detlef Russ
- Department for the Development of Applications, Institute for Laser Technology, University Ulm, Ulm, Germany
| | - Jonas Wagner
- Department of General, Visceral and Thoracic Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Rainer Grotelüschen
- Department of General, Visceral and Thoracic Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Matthias Reeh
- Department of General, Visceral and Thoracic Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Jakob R Izbicki
- Department of General, Visceral and Thoracic Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Oliver Mann
- Department of General, Visceral and Thoracic Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Sabine H Wipper
- Department of Vascular Surgery, University Medical Center Innsbruck, Innsbruck, Austria
| | - Anna Duprée
- Department of General, Visceral and Thoracic Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| |
Collapse
|
26
|
Jiang B, Liu C, Guo Y, Yang H, Sun T, Zhang Y, Zhou K, Guo Y, Chen H, Sun L. Precursor structure-determined fluorescence labeling for mesenchymal stem cells among four polyethylenimine-based carbon quantum dots. Colloids Surf B Biointerfaces 2022; 213:112411. [PMID: 35176604 DOI: 10.1016/j.colsurfb.2022.112411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Revised: 01/17/2022] [Accepted: 02/10/2022] [Indexed: 11/25/2022]
Abstract
A series of polyethylenimine (PEI)-based CQDs have been synthesized via a hydrothermal method by mixing linear PEI with linear citric acid (CA with COOH groups, PEICA), linear glucose (G with OH groups, PEIG), cyclic hyaluronic acid (HA with COOH groups, PEIHA) and cyclic boron nitride (BN with OH groups, PEIBN). PEICA had the best labeling effect (100.00 ± 0.26%) and the lowest cytotoxicity (100.89 ± 18.00%) for mesenchymal stem cells (MSCs), followed by PEIG (91.83 ± 7.60%; 92.84 ± 5.56%), PEIHA (84.34 ± 7.87%; 61.27 ± 11.34%) and PEIBN (1.33 ± 0.84%; 22.72 ± 11.47%). The labeling effect of PEIHA for MSCs is lower than that of PEIG because the surface potential of PEIHA (6.58 mV) is higher than that of PEIG (0.50 mV). For PEIBN, it is likely that the precursor (BN) is less biocompatible than CA, HA and glucose. Thus, the linear acid (CA) is more appropriate to react with PEI for synthesizing CQDs with high labeling performance for MSCs. The control experimental results show that factors (such as surface potential, aromatic component, etc.) may all contribute to MSC labeling by PEICA. This work is helpful to design CQDs with high MSC labeling efficiency.
Collapse
Affiliation(s)
- Bo Jiang
- Department of Rheumatology and Immunology, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing 210008, PR China
| | - Cong Liu
- Nanjing Drum Tower Hospital, Clinical College of Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210008, PR China
| | - Ying Guo
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, College of Environment, Hohai University, Nanjing 210098, PR China
| | - Hui Yang
- Nanjing Drum Tower Hospital, Clinical College of Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210008, PR China
| | - Tian Sun
- Department of Rheumatology and Immunology, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing 210008, PR China
| | - Yueyang Zhang
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing 210009, PR China
| | - Kangxin Zhou
- Department of Rheumatology and Immunology, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing 210008, PR China
| | - Yong Guo
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, College of Environment, Hohai University, Nanjing 210098, PR China.
| | - Hongwei Chen
- Department of Rheumatology and Immunology, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing 210008, PR China; Nanjing Drum Tower Hospital, Clinical College of Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210008, PR China.
| | - Lingyun Sun
- Nanjing Drum Tower Hospital, Clinical College of Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210008, PR China.
| |
Collapse
|
27
|
Abstract
Since the first fluorescent proteins (FPs) were identified and isolated over fifty years ago, FPs have become commonplace yet indispensable tools for studying the constitutive secretory pathway in live cells. At the same time, genetically encoded chemical tags have provided a new use for much older fluorescent dyes. Innovation has also produced several specialized methods to allow synchronous release of cargo proteins from the endoplasmic reticulum (ER), enabling precise characterization of sequential trafficking steps in the secretory pathway. Without the constant innovation of the researchers who design these tools to control, image, and quantitate protein secretion, major discoveries about ER-to-Golgi transport and later stages of the constitutive secretory pathway would not have been possible. We review many of the tools and tricks, some 25 years old and others brand new, that have been successfully implemented to study ER-to-Golgi transport in intact and living cells.
Collapse
Affiliation(s)
- Danette Kowal Seiler
- Division of Biological Sciences, Center for Structural & Functional Neuroscience, University of Montana, Missoula, MT, 59812, USA
| | - Jesse C Hay
- Division of Biological Sciences, Center for Structural & Functional Neuroscience, University of Montana, Missoula, MT, 59812, USA.
| |
Collapse
|
28
|
Wang H, Obeidy P, Wang Z, Zhao Y, Wang Y, Su QP, Cox CD, Ju LA. Fluorescence-coupled micropipette aspiration assay to examine calcium mobilization caused by red blood cell mechanosensing. Eur Biophys J 2022; 51:135-146. [PMID: 35286429 PMCID: PMC8964638 DOI: 10.1007/s00249-022-01595-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Revised: 02/21/2022] [Accepted: 02/24/2022] [Indexed: 12/16/2022]
Abstract
Mechanical stimuli such as tension, compression, and shear stress play critical roles in the physiological functions of red blood cells (RBCs) and their homeostasis, ATP release, and rheological properties. Intracellular calcium (Ca2+) mobilization reflects RBC mechanosensing as they transverse the complex vasculature. Emerging studies have demonstrated the presence of mechanosensitive Ca2+ permeable ion channels and their function has been implicated in the regulation of RBC volume and deformability. However, how these mechanoreceptors trigger Ca2+ influx and subsequent cellular responses are still unclear. Here, we introduce a fluorescence-coupled micropipette aspiration assay to examine RBC mechanosensing at the single-cell level. To achieve a wide range of cell aspirations, we implemented and compared two negative pressure adjusting apparatuses: a homemade water manometer (- 2.94 to 0 mmH2O) and a pneumatic high-speed pressure clamp (- 25 to 0 mmHg). To visualize Ca2+ influx, RBCs were pre-loaded with an intensiometric probe Cal-520 AM, then imaged under a confocal microscope with concurrent bright-field and fluorescent imaging at acquisition rates of 10 frames per second. Remarkably, we observed the related changes in intracellular Ca2+ levels immediately after aspirating individual RBCs in a pressure-dependent manner. The RBC aspirated by the water manometer only displayed 1.1-fold increase in fluorescence intensity, whereas the RBC aspirated by the pneumatic clamp showed up to threefold increase. These results demonstrated the water manometer as a gentle tool for cell manipulation with minimal pre-activation, while the high-speed pneumatic clamp as a much stronger pressure actuator to examine cell mechanosensing directly. Together, this multimodal platform enables us to precisely control aspiration and membrane tension, and subsequently correlate this with intracellular calcium concentration dynamics in a robust and reproducible manner.
Collapse
Affiliation(s)
- Haoqing Wang
- School of Biomedical Engineering, Faculty of Engineering, The University of Sydney, Darlington, NSW, 2008, Australia.,Charles Perkins Centre, The University of Sydney, Camperdown, NSW, 2006, Australia.,Heart Research Institute, Newtown, NSW, 2042, Australia
| | - Peyman Obeidy
- School of Biomedical Engineering, Faculty of Engineering, The University of Sydney, Darlington, NSW, 2008, Australia
| | - Zihao Wang
- School of Biomedical Engineering, Faculty of Engineering, The University of Sydney, Darlington, NSW, 2008, Australia.,School of Aerospace, Mechanical and Mechatronic Engineering, Faculty of Engineering, The University of Sydney, Darlington, NSW, 2008, Australia
| | - Yunduo Zhao
- School of Biomedical Engineering, Faculty of Engineering, The University of Sydney, Darlington, NSW, 2008, Australia.,Molecular Cardiology and Biophysics Division, Victor Chang Cardiac Research Institute, Sydney, NSW, 2010, Australia
| | - Yao Wang
- School of Biomedical Engineering, Faculty of Engineering, The University of Sydney, Darlington, NSW, 2008, Australia.,Cellular and Genetic Medicine Unit, School of Medical Sciences, University of New South Wales, Sydney, NSW, 2052, Australia
| | - Qian Peter Su
- Charles Perkins Centre, The University of Sydney, Camperdown, NSW, 2006, Australia.,Heart Research Institute, Newtown, NSW, 2042, Australia.,School of Biomedical Engineering, Faculty of Engineering and Information Technology, University of Technology Sydney, Sydney, NSW, 2007, Australia
| | - Charles D Cox
- Molecular Cardiology and Biophysics Division, Victor Chang Cardiac Research Institute, Sydney, NSW, 2010, Australia.,Faculty of Medicine, St. Vincent's Clinical School, University of New South Wales, Sydney, NSW, 2010, Australia
| | - Lining Arnold Ju
- School of Biomedical Engineering, Faculty of Engineering, The University of Sydney, Darlington, NSW, 2008, Australia. .,Charles Perkins Centre, The University of Sydney, Camperdown, NSW, 2006, Australia. .,Heart Research Institute, Newtown, NSW, 2042, Australia.
| |
Collapse
|
29
|
Liu T, Peng Q, Wang J, Yu C, Huang X, Luo Q, Zeng Y, Hou Y, Zhang Y, Luo A, Zou Z, Chen M, Peng Y. A FRET-based ratiometric fluorescent probe for hydrogen polysulfide detection in living cells and zebrafish. Spectrochim Acta A Mol Biomol Spectrosc 2022; 267:120524. [PMID: 34739897 DOI: 10.1016/j.saa.2021.120524] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Revised: 10/11/2021] [Accepted: 10/17/2021] [Indexed: 06/13/2023]
Abstract
Hydrogen polysulfide (H2Sn, n > 1) is an important active sulfur molecule (RSS) in organisms, which have been considered to be involved in redox signaling and cytoprotective processes. In this work, in order to quickly and accurately detect H2Sn in biosystems, 2-fluoro-5-nitrobenzoic ester was used as the response moiety for H2Sn, and the FRET strategy was adopted to effectively connect the donor (6-hydroxy-2-naphthoic acid) and acceptor (4-substituted-1,8-naphthalimide) to construct a new ratiometric H2Sn fluorescent probe NPNA-H2Sn. NPNA-H2Sn exhibited a more than ∼ 8.0-fold ratio enhancement towards H2Sn at I450/I526 and a very high sensitivity with a very low detection limit of 40.3 nM. Impressive, NPNA-H2Sn was further used for fluorescence imaging of H2Sn in living cells and zebrafish, which showed high-clear ratiometric images. Therefore, we have demonstrated that NPNA-H2Sn could be applied for ratiometric images of endogenous H2Sn in living biosystems and provide a powerful molecular tool for evaluating the physiological and pathological functions of H2Sn.
Collapse
Affiliation(s)
- Teng Liu
- Department of New Pediatrics, Xiangya Hospital of Central South University, Changsha 410008, PR China
| | - Qiyao Peng
- Chongqing Key Laboratory for Pharmaceutical Metabolism Research, The Key Laboratory of Biochemistry and Molecular Pharmacology, College of Pharmacy, College of Traditional Chinese Medicine, Chongqing Medical University, Chongqing 400016, PR China; Department of New Pediatrics, Xiangya Hospital of Central South University, Changsha 410008, PR China
| | - Junyi Wang
- Chongqing Key Laboratory for Pharmaceutical Metabolism Research, The Key Laboratory of Biochemistry and Molecular Pharmacology, College of Pharmacy, College of Traditional Chinese Medicine, Chongqing Medical University, Chongqing 400016, PR China
| | - Chao Yu
- Chongqing Key Laboratory for Pharmaceutical Metabolism Research, The Key Laboratory of Biochemistry and Molecular Pharmacology, College of Pharmacy, College of Traditional Chinese Medicine, Chongqing Medical University, Chongqing 400016, PR China
| | - Xuekuan Huang
- Chongqing Key Laboratory for Pharmaceutical Metabolism Research, The Key Laboratory of Biochemistry and Molecular Pharmacology, College of Pharmacy, College of Traditional Chinese Medicine, Chongqing Medical University, Chongqing 400016, PR China
| | - Quan Luo
- Department of Rehabilitation, Hunan Provincial People's Hospital, the First Affiliated Hospital of Hunan Normal University, Changsha 410000, PR China
| | - Yajun Zeng
- Chongqing Key Laboratory for Pharmaceutical Metabolism Research, The Key Laboratory of Biochemistry and Molecular Pharmacology, College of Pharmacy, College of Traditional Chinese Medicine, Chongqing Medical University, Chongqing 400016, PR China
| | - Yi Hou
- Chongqing Key Laboratory for Pharmaceutical Metabolism Research, The Key Laboratory of Biochemistry and Molecular Pharmacology, College of Pharmacy, College of Traditional Chinese Medicine, Chongqing Medical University, Chongqing 400016, PR China
| | - Yuan Zhang
- Chongqing Key Laboratory for Pharmaceutical Metabolism Research, The Key Laboratory of Biochemistry and Molecular Pharmacology, College of Pharmacy, College of Traditional Chinese Medicine, Chongqing Medical University, Chongqing 400016, PR China
| | - Aiming Luo
- Hunan Kaiyoukang Health Technology Co., Ltd, Changsha 410008, PR China
| | - Zhaoxia Zou
- Hunan Kaiyoukang Health Technology Co., Ltd, Changsha 410008, PR China
| | - Meizi Chen
- Department of General Internal Medicine, the First People's Hospital of Chenzhou, Chenzhou 423000, PR China
| | - Yongbo Peng
- Chongqing Key Laboratory for Pharmaceutical Metabolism Research, The Key Laboratory of Biochemistry and Molecular Pharmacology, College of Pharmacy, College of Traditional Chinese Medicine, Chongqing Medical University, Chongqing 400016, PR China.
| |
Collapse
|
30
|
Zhang X, Zhang L, Liu S, Zhu X, Zhou P, Cheng X, Zhang R, Zhang L, Chen L. Insight into sulfur dioxide and its derivatives metabolism in living system with visualized evidences via ultra-sensitive fluorescent probe. J Hazard Mater 2022; 423:127179. [PMID: 34544003 DOI: 10.1016/j.jhazmat.2021.127179] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Revised: 08/30/2021] [Accepted: 09/06/2021] [Indexed: 06/13/2023]
Abstract
Sulfur dioxide (SO2) and its derivatives have long been considered as hazardous environmental pollutants but commonly used as food additives in safe dose range. They also could be produced from biological metabolism process of sulfur-containing amino acids. However, their physiological roles remain extremely obscure mainly due to lack of efficient tools for monitoring and imaging strategy establishment. Furthermore, most of current studies of this aspect focus on novel probe design or just imaging them rather than on the ins and outs. Therefore, there is a high significance of establishing highly sensitive detection strategy for monitoring SO2 derivatives in living systems, food and environment. Herein, we design a fluorescent probe MS-Bindol for sensitively detecting SO2 derivatives with a low detection limit (0.2 nM). We have established an imaging strategy for investigation of SO2 derivatives metabolism in living cells and zebrafish, providing visualize evidences and verified that SO2 derivatives could be synthetized from thiosulfate and glutathione(GSH) and be hardly consumed by using sulfite oxidase inhibitors (ferricyanide or arsenite). Moreover, the probe also exhibits excellent practicability in food as well as environmental samples. Our studies may help biologist for better understanding SO2 derivatives metabolism and deeply explore their physiological roles in biological systems.
Collapse
Affiliation(s)
- Xia Zhang
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Shandong Key Laboratory of Coastal Environmental Processes, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Li Zhang
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Shandong Key Laboratory of Coastal Environmental Processes, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Shudi Liu
- College of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, China
| | - Xiaozhen Zhu
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Shandong Key Laboratory of Coastal Environmental Processes, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China
| | - Panpan Zhou
- College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China
| | - Xinyan Cheng
- College of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, China
| | - Renjie Zhang
- College of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, China
| | - Liangwei Zhang
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Shandong Key Laboratory of Coastal Environmental Processes, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China; Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao 266071, China.
| | - Lingxin Chen
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Shandong Key Laboratory of Coastal Environmental Processes, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China; Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao 266071, China; Laboratory for Marine Biology and Biotechnology, Pilot National Laboratory for Marine Science and Technology, Qingdao 266237, China; School of Pharmacy, Binzhou Medical University, Yantai 264003, China.
| |
Collapse
|
31
|
Lu B, Yin J, Liu C, Lin W. Lipid droplet polarity decreases during the pathology of muscle injury as revealed by a polarity sensitive sensor. Spectrochim Acta A Mol Biomol Spectrosc 2021; 262:120149. [PMID: 34252741 DOI: 10.1016/j.saa.2021.120149] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Revised: 06/24/2021] [Accepted: 07/01/2021] [Indexed: 06/13/2023]
Abstract
Revealing the relationship between lipid droplets (LDs)polarity and disease is indispensable in clinicopathological diagnosis. So far, muscle injury is often ignored as it is not life-threatening as cardiovascular and cerebrovascular diseases, making the exploration of the internal relationship between muscle injury and LDs polarity a gray area. Herein, a fluorescent probe (CCB) with powerful polar-sensitive as well as precise LDs targeting was designed for visualizing the LDs polarity in the pathology of muscle injury. By means of the probe CCB, the identification of cancer cells and the monitoring of LDs polarity changes in dysfunctional cells were successfully realized. Furthermore, the penetration ability of CCB in tissues of mice was tested to verify the applicability of the probe in organisms. Importantly, by CCB, the relationship between muscle damage and LDs polarity was explored, revealing that muscle damage caused a significant decrease in LDs polarity accompanied by a significant increase in fluorescence. Most importantly, it is the first time to reveal the relationship between muscle damage and LDs polarity. Therefore, the probe CCB will be a powerful monitoring platform for diagnosing related diseases caused by abnormal LDs polarity.
Collapse
Affiliation(s)
- Bingli Lu
- Institute of Fluorescent Probes for Biological Imaging, School of Chemistry and Chemical Engineering, School of Materials Science and Engineering, University of Jinan, Jinan, Shandong 250022, PR China
| | - Junling Yin
- Institute of Fluorescent Probes for Biological Imaging, School of Chemistry and Chemical Engineering, School of Materials Science and Engineering, University of Jinan, Jinan, Shandong 250022, PR China
| | - Cong Liu
- Institute of Fluorescent Probes for Biological Imaging, School of Chemistry and Chemical Engineering, School of Materials Science and Engineering, University of Jinan, Jinan, Shandong 250022, PR China
| | - Weiying Lin
- Institute of Fluorescent Probes for Biological Imaging, School of Chemistry and Chemical Engineering, School of Materials Science and Engineering, University of Jinan, Jinan, Shandong 250022, PR China; Guangxi Key Laboratory of Electrochemical Energy Materials, Institute of Optical Materials and Chemical Biology, School of Chemistry and Chemical Engineering, Guangxi University, Nanning, Guangxi 530004, PR China.
| |
Collapse
|
32
|
Yuan H, Jiang A, Fang H, Chen Y, Guo Z. Optical properties of natural small molecules and their applications in imaging and nanomedicine. Adv Drug Deliv Rev 2021; 179:113917. [PMID: 34384827 DOI: 10.1016/j.addr.2021.113917] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 07/31/2021] [Accepted: 08/05/2021] [Indexed: 01/10/2023]
Abstract
Natural small molecules derived from plants have fascinated scientists for centuries due to their practical applications in various fields, especially in nanomedicine. Some of the natural molecules were found to show intrinsic optical features such as fluorescence emission and photosensitization, which could be beneficial to provide spatial temporal information and help tracking the drugs in biological systems. Much efforts have been devoted to the investigation of optical properties and practical applications of natural molecules. In this review, optical properties of natural small molecules and their applications in fluorescence imaging, and theranostics will be summarized. First, we will introduce natural small molecules with different fluorescence emission, ranging from blue to near infrared emission. Second, imaging applications in biological samples will be covered. Third, we will discuss the applications of theranostic nanomedicines or drug delivering systems containing fluorescent natural molecules acting as imaging agents or photosensitizers. Finally, future perspectives in this field will be discussed.
Collapse
Affiliation(s)
- Hao Yuan
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Chemistry and Biomedicine Innovation Center (ChemBIC), Nanjing University, 163 Xianlin Avenue, Nanjing 210093, China
| | - Ao Jiang
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Chemistry and Biomedicine Innovation Center (ChemBIC), Nanjing University, 163 Xianlin Avenue, Nanjing 210093, China
| | - Hongbao Fang
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Chemistry and Biomedicine Innovation Center (ChemBIC), Nanjing University, 163 Xianlin Avenue, Nanjing 210093, China
| | - Yuncong Chen
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Chemistry and Biomedicine Innovation Center (ChemBIC), Nanjing University, 163 Xianlin Avenue, Nanjing 210093, China.
| | - Zijian Guo
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Chemistry and Biomedicine Innovation Center (ChemBIC), Nanjing University, 163 Xianlin Avenue, Nanjing 210093, China.
| |
Collapse
|
33
|
Gallagher BR, Zhao Y. Expansion microscopy: A powerful nanoscale imaging tool for neuroscientists. Neurobiol Dis 2021; 154:105362. [PMID: 33813047 PMCID: PMC8600979 DOI: 10.1016/j.nbd.2021.105362] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 03/26/2021] [Accepted: 03/31/2021] [Indexed: 01/13/2023] Open
Abstract
One of the biggest unsolved questions in neuroscience is how molecules and neuronal circuitry create behaviors, and how their misregulation or dysfunction results in neurological disease. Light microscopy is a vital tool for the study of neural molecules and circuits. However, the fundamental optical diffraction limit precludes the use of conventional light microscopy for sufficient characterization of critical signaling compartments and nanoscopic organizations of synapse-associated molecules. We have witnessed rapid development of super-resolution microscopy methods that circumvent the resolution limit by controlling the number of emitting molecules in specific imaging volumes and allow highly resolved imaging in the 10-100 nm range. Most recently, Expansion Microscopy (ExM) emerged as an alternative solution to overcome the diffraction limit by physically magnifying biological specimens, including nervous systems. Here, we discuss how ExM works in general and currently available ExM methods. We then review ExM imaging in a wide range of nervous systems, including Caenorhabditis elegans, Drosophila, zebrafish, mouse, and human, and their applications to synaptic imaging, neuronal tracing, and the study of neurological disease. Finally, we provide our prospects for expansion microscopy as a powerful nanoscale imaging tool in the neurosciences.
Collapse
Affiliation(s)
- Brendan R Gallagher
- Department of Biological Sciences, Carnegie Mellon University, Pittsburgh, PA, USA
| | - Yongxin Zhao
- Department of Biological Sciences, Carnegie Mellon University, Pittsburgh, PA, USA.
| |
Collapse
|
34
|
Mensah-Brown KG, Germi JW, Quattrone F, Maloney-Wilensky E, Lee JYK, Chen HI, Schuster JM. Use of Second Window ICG in spinal cord biopsy of a mildly contrast-enhancing lesion: Technical note and review of the literature. Neurochirurgie 2021:S0028-3770(21)00161-2. [PMID: 34102223 DOI: 10.1016/j.neuchi.2021.05.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2021] [Revised: 05/24/2021] [Accepted: 05/25/2021] [Indexed: 11/23/2022]
Abstract
INTRODUCTION Indocyanine green (ICG) is commonly used to visualize cerebral vasculature, particularly in the management of cerebral aneurysms. There have also been attempts to use ICG for visualization of tumors. Injection of ICG followed by immediate fluorescence microscopy is limited by the short time window for imaging and administration and restricted depth of imaging. Second Window Indocyanine Green (SWIG) addresses these issues by allowing for longer contrast times and the imaging of deeper regions of brain tissue. Biopsy of spinal cord lesions is often difficult for a variety of reasons, including the delicate nature of the tissue and differentiating normal from lesional tissue visually, especially in lesions with heterogeneous enhancement. METHODS In this case report, we describe the use of second window ICG to facilitate the visualization of a spinal cord lesion and subsequent biopsy of the lesion. RESULTS This patient is a 24-year-old female who had recurrence of a suprasellar germinoma. An MRI of the rest of the neuraxis was performed to assess for the presence of drop metastases. The spinal cord from C2-5 was expanded with areas of patchy enhancement; however, this lesion was asymptomatic. The patient's oncologist requested a biopsy of this lesion to help direct subsequent care of her recurrent germinoma. The day before surgery, the patient had an intravenous injection of ICG dye. She then underwent a C3-5 laminectomy for biopsy of her cervical intramedullary lesion. After opening of the dura, no visible abnormality of the spinal cord could be identified. A Stryker endoscope showed an area of ICG uptake in the cord at approximately the C3-4 level. A midline myelotomy was centered over the ICG demarcated area and several samples were taken for pathology. Final biopsy results determined the lesion to be spinal cord parenchyma with perivascular and intraparenchymal lymphocytes - not consistent with spinal cord tumor or germinoma. CONCLUSION Second Window ICG is effective in visualizing otherwise visually unremarkable spinal cord lesions. This technology can facilitate biopsy of these lesions and possibly their surgical resection.
Collapse
|
35
|
Peng Y, Fang C, Zhu G, Peng F, Tian J, Su S, Li B, Yang X. Preliminary application of indocyanine green fluorescence imaging in postoperative gastrointestinal fistula. Photodiagnosis Photodyn Ther 2021; 34:102336. [PMID: 33965600 DOI: 10.1016/j.pdpdt.2021.102336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Revised: 03/24/2021] [Accepted: 05/03/2021] [Indexed: 10/21/2022]
Abstract
We describe a case using indocyanine green (ICG) fluorescence imaging for diagnosis of postoperative gastrointestinal fistula. When the fistula is very large, both indocyanine green and methylene blue can be found in the postoperative drainage. After treatment, when the leak became small, only ICG fluorescence imaging continued to be demonstrated. ICG fluorescence imaging is likely to prove to be a safe and effective method of examination, and one that is very practical and easy to execute for the diagnosis of postoperative gastrointestinal fistula.
Collapse
Affiliation(s)
- Yisheng Peng
- Department of General Surgery (Hepatobiliary Surgery), The Affiliated Hospital of Southwest Medical University, Luzhou, 646000, China; Academician (Expert) Workstation of Sichuan Province, Luzhou, 646000, China
| | - Cheng Fang
- Department of General Surgery (Hepatobiliary Surgery), The Affiliated Hospital of Southwest Medical University, Luzhou, 646000, China; Academician (Expert) Workstation of Sichuan Province, Luzhou, 646000, China
| | - Gang Zhu
- Department of General Surgery (Hepatobiliary Surgery), The Affiliated Hospital of Southwest Medical University, Luzhou, 646000, China; Academician (Expert) Workstation of Sichuan Province, Luzhou, 646000, China
| | - Fangyi Peng
- Department of General Surgery (Hepatobiliary Surgery), The Affiliated Hospital of Southwest Medical University, Luzhou, 646000, China; Academician (Expert) Workstation of Sichuan Province, Luzhou, 646000, China
| | - Jie Tian
- Key Laboratory of Molecular Imaging, Institute of Automation, Chinese Academy of Sciences, Beijing, China
| | - Song Su
- Department of General Surgery (Hepatobiliary Surgery), The Affiliated Hospital of Southwest Medical University, Luzhou, 646000, China; Academician (Expert) Workstation of Sichuan Province, Luzhou, 646000, China
| | - Bo Li
- Department of General Surgery (Hepatobiliary Surgery), The Affiliated Hospital of Southwest Medical University, Luzhou, 646000, China; Academician (Expert) Workstation of Sichuan Province, Luzhou, 646000, China.
| | - Xiaoli Yang
- Department of General Surgery (Hepatobiliary Surgery), The Affiliated Hospital of Southwest Medical University, Luzhou, 646000, China; Academician (Expert) Workstation of Sichuan Province, Luzhou, 646000, China.
| |
Collapse
|
36
|
Xu H, Zhao Y, Gao X, Wang F, Gu Y. An innovative fluorescent probe targeting IGF1R for breast cancer diagnosis. Eur J Med Chem 2021; 219:113440. [PMID: 33892274 DOI: 10.1016/j.ejmech.2021.113440] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2021] [Revised: 03/16/2021] [Accepted: 03/30/2021] [Indexed: 12/24/2022]
Abstract
Breast cancer is the most dangerous, among all malignant tumors that threaten women's lives and health. Surgical resection can effectively prolong the survival time of patients with early breast cancer. Insulin-like growth factor type 1 receptor (IGF1R) is a member of the large family of receptor tyrosine kinases, and it's significantly overexpressed in breast cancer cells, which make them ideal biomarkers for the diagnosis and surgery navigation of breast cancer. Herein, we developed a series of IGF1R-targeted probes (YQ-L) for fluorescent imaging in breast cancer based on the strategy of drug repositioning. YQ-L exhibited specific IGF1R binding both in vitro and in vivo, especially probe 5d exhibited higher tumor uptake with a high tumor/normal ratio in the MCF-7 tumor bearing mouse. The maximum T/N ratio of probe 5d was 4.9, which was about 3 times that of indocyanine green (ICG). Meanwhile, probe 5d displayed more favorable in vivo pharmacokinetic properties than that of ICG with less hepatic and intestinal uptake. Convenient preparation, excellent IGF1R specificity in breast cancer, rapid clearance from normal organs and good biosafety profiles of probe 5d warrant further investigations for clinical translation in detection and surgery navigation of breast cancer.
Collapse
Affiliation(s)
- Haoran Xu
- State Key Laboratory of Natural Medicine, Department of Biomedical Engineering, School of Engineering, China Pharmaceutical University, No. 24 Tongjia Lane Gulou District, Nanjing, 211198, China
| | - Yue Zhao
- State Key Laboratory of Natural Medicine, Department of Biomedical Engineering, School of Engineering, China Pharmaceutical University, No. 24 Tongjia Lane Gulou District, Nanjing, 211198, China
| | - Xin Gao
- State Key Laboratory of Natural Medicine, Department of Biomedical Engineering, School of Engineering, China Pharmaceutical University, No. 24 Tongjia Lane Gulou District, Nanjing, 211198, China
| | - Fang Wang
- State Key Laboratory of Natural Medicine, Department of Biomedical Engineering, School of Engineering, China Pharmaceutical University, No. 24 Tongjia Lane Gulou District, Nanjing, 211198, China
| | - Yueqing Gu
- State Key Laboratory of Natural Medicine, Department of Biomedical Engineering, School of Engineering, China Pharmaceutical University, No. 24 Tongjia Lane Gulou District, Nanjing, 211198, China.
| |
Collapse
|
37
|
Jiang H, Tang D, Li N, Li J, Li Z, Han Q, Liu X, Zhu X. A novel chemosensor for the distinguishable detections of Cu 2+ and Hg 2+ by off-on fluorescence and ratiometric UV-visible absorption. Spectrochim Acta A Mol Biomol Spectrosc 2021; 250:119365. [PMID: 33418474 DOI: 10.1016/j.saa.2020.119365] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2020] [Revised: 12/15/2020] [Accepted: 12/17/2020] [Indexed: 06/12/2023]
Abstract
A novel dual-functional chemosensor, derived from the conjugation of rhodamine B with a quinoline derivative (RHQ), was firstly synthesized with high efficiency and cost-effectiveness for the distinguishable detections of Cu2+ and Hg2+ via ring-opening and ring-forming mechanism. The chemosensor exhibits highly selective and distinguishable responses for Cu2+ and Hg2+ in CH3CN-H2O (4:1, v/v) with off-on fluorescence and ratiometric ultraviolet-visible (UV-Vis) absorption changes. Additionally, Cu2+ is identified by opening a rhodamine spirocycle with a UV-Vis absorption band, at around 560 nm and fluorescence turn-on. Interestingly, Hg2+ is discerned by opening the rhodamine spirocycle and by generating a new special cycle for the quinoline unit. Resultantly, there were two UV-Vis absorption bands at around 365 nm and 560 nm, which were accompanied by fluorescence turn-on. Moreover, the chemosensor can quantitatively detect Cu2+ and Hg2+ by off-on fluorescence and ratiometric UV-Vis absorption changes, respectively. Furthermore, the chemosensor with low cytotoxicity could be successfully administered to monitor Cu2+ and Hg2+ in living cells. This work may pay the way for the development of dual-functional chemosensor for quantificationally detecting metal ions in environmental and biological systems.
Collapse
Affiliation(s)
- Huie Jiang
- College of Bioresources Chemistry and Materials Engineering, National Demonstration Center for Experimental Light Chemistry Engineering Education, Shaanxi University of Science and Technology, Xi'an 710021, China; Department of Chemistry, Hong Kong Baptist University, Hong Kong, China.
| | - Danni Tang
- College of Bioresources Chemistry and Materials Engineering, National Demonstration Center for Experimental Light Chemistry Engineering Education, Shaanxi University of Science and Technology, Xi'an 710021, China
| | - Nihao Li
- College of Bioresources Chemistry and Materials Engineering, National Demonstration Center for Experimental Light Chemistry Engineering Education, Shaanxi University of Science and Technology, Xi'an 710021, China
| | - Junwei Li
- College of Bioresources Chemistry and Materials Engineering, National Demonstration Center for Experimental Light Chemistry Engineering Education, Shaanxi University of Science and Technology, Xi'an 710021, China
| | - Zhijian Li
- College of Bioresources Chemistry and Materials Engineering, National Demonstration Center for Experimental Light Chemistry Engineering Education, Shaanxi University of Science and Technology, Xi'an 710021, China
| | - Qingxin Han
- College of Bioresources Chemistry and Materials Engineering, National Demonstration Center for Experimental Light Chemistry Engineering Education, Shaanxi University of Science and Technology, Xi'an 710021, China
| | - Xinhua Liu
- College of Bioresources Chemistry and Materials Engineering, National Demonstration Center for Experimental Light Chemistry Engineering Education, Shaanxi University of Science and Technology, Xi'an 710021, China
| | - Xunjin Zhu
- Department of Chemistry, Hong Kong Baptist University, Hong Kong, China.
| |
Collapse
|
38
|
Zhao S, Qian Y, Mu Y. Tracking single cells in zebrafish brain. J Neurosci Methods 2021; 353:109086. [PMID: 33508409 DOI: 10.1016/j.jneumeth.2021.109086] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Revised: 01/16/2021] [Accepted: 01/19/2021] [Indexed: 10/22/2022]
Abstract
Changes in cell locations and morphologies shape the brain. Tracking single cells over time is a vital step to study these changes, but densely arranged brain cells impede such observation. Larval zebrafish has become a popular model animal for single-cell tracking, owing to its small, transparent brain and easy genetic manipulation. In this article, we review recent single-cell tracking studies on neurons and non-neuronal cells in the larval zebrafish brain, including soma migration, process refinement, and interactions among cell types. These findings yield new insights regarding how the translocation and morphological changes of individual cells determine brain function.
Collapse
Affiliation(s)
- Shan Zhao
- Institute of Neuroscience, State Key Laboratory of Neuroscience, Center for Excellence in Brain Science and Intelligence Technology, Chinese Academy of Sciences, 320 Yue-Yang Road, Shanghai, 200031, China
| | - Yu Qian
- Institute of Neuroscience, State Key Laboratory of Neuroscience, Center for Excellence in Brain Science and Intelligence Technology, Chinese Academy of Sciences, 320 Yue-Yang Road, Shanghai, 200031, China
| | - Yu Mu
- Institute of Neuroscience, State Key Laboratory of Neuroscience, Center for Excellence in Brain Science and Intelligence Technology, Chinese Academy of Sciences, 320 Yue-Yang Road, Shanghai, 200031, China.
| |
Collapse
|
39
|
Yu X, Xiang L, Yang S, Qu S, Zeng X, Zhou Y, Yang R. A near-infrared fluorogenic probe with fast response for detecting sodium dithionite in living cells. Spectrochim Acta A Mol Biomol Spectrosc 2021; 245:118887. [PMID: 32927301 DOI: 10.1016/j.saa.2020.118887] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Revised: 08/25/2020] [Accepted: 08/25/2020] [Indexed: 06/11/2023]
Abstract
Developing a reliable fluorescence probe is crucial for accurately monitoring sodium dithionite (Na2S2O4, SDT) in biosystems, but the current reported azo-based ones suffers from short excitation/emission wavelengths and relative slow response speed. To address this issue, we herein present a novel near-infrared emissive fluorescence probe for SDT, namely DCM-MQ, consisting of a dicyanomethylene-benzopyran fluorogenic reporter and a 1-methylquinolinium as recognition moiety. On the basis of the specific reduction mechanism, DCM-MQ exhibited a rapid colorimetric and fluorescent recognition for SDT (less than 3 s) with large Stokes shift (112 nm) and high sensitivity (detection limit was 19 nM). The fluorescence imaging results demonstrate that DCM-MQ is competent for monitoring SDT in living systems.
Collapse
Affiliation(s)
- Xizi Yu
- Hunan Provincial Key Laboratory of Cytochemistry, Hunan Provincial Engineering Research Center for Food Processing of Aquatic Biotic Resources, School of Chemistry and Food Engineering, Changsha University of Science and Technology, Changsha 410114, PR China
| | - Lie Xiang
- Hunan Provincial Key Laboratory of Cytochemistry, Hunan Provincial Engineering Research Center for Food Processing of Aquatic Biotic Resources, School of Chemistry and Food Engineering, Changsha University of Science and Technology, Changsha 410114, PR China
| | - Sheng Yang
- Hunan Provincial Key Laboratory of Cytochemistry, Hunan Provincial Engineering Research Center for Food Processing of Aquatic Biotic Resources, School of Chemistry and Food Engineering, Changsha University of Science and Technology, Changsha 410114, PR China.
| | - Shuanglin Qu
- College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, PR China
| | - Xianqing Zeng
- Hunan Provincial Key Laboratory of Cytochemistry, Hunan Provincial Engineering Research Center for Food Processing of Aquatic Biotic Resources, School of Chemistry and Food Engineering, Changsha University of Science and Technology, Changsha 410114, PR China
| | - Yibo Zhou
- Hunan Provincial Key Laboratory of Cytochemistry, Hunan Provincial Engineering Research Center for Food Processing of Aquatic Biotic Resources, School of Chemistry and Food Engineering, Changsha University of Science and Technology, Changsha 410114, PR China
| | - Ronghua Yang
- Hunan Provincial Key Laboratory of Cytochemistry, Hunan Provincial Engineering Research Center for Food Processing of Aquatic Biotic Resources, School of Chemistry and Food Engineering, Changsha University of Science and Technology, Changsha 410114, PR China; Laboratory of Chemical Biology & Traditional Chinese Medicine Research, Ministry of Education, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, PR China.
| |
Collapse
|
40
|
Ahmed N, Zareen W, Zhang D, Yang X, Ye Y. A DCM-based NIR sensor for selective and sensitive detection of Zn 2+ in living cells. Spectrochim Acta A Mol Biomol Spectrosc 2020; 243:118758. [PMID: 32810778 DOI: 10.1016/j.saa.2020.118758] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 07/19/2020] [Accepted: 07/23/2020] [Indexed: 06/11/2023]
Abstract
Zinc ion is the 2nd abundant transition metal element in human's body. It is responsible for many physiological and biological functioning in the body, such as growth of people, immunity, endocrine, etc. The deficiency of zinc could result in an increasing risk for growth retardation, neurological disorder and infectious disease. Thus, developing a nondestructive method for detecting Zn2+ in living systems is important. Here we reported a 2-(2-methyl-4H-ylidene)- malononitrile (DCM)-based NIR probe DF-Zn for selective and sensitive detection of Zn2+. The probe DF-Zn is cell-permeable and stable at broad pH range. DF-Zn showed a fast response to Zn2+, big stock's shift, and "nude-eye" recognition for Zn2+. Moreover, the selective binding of probe DF-Zn to Zn2+ was reversible. With the addition of EDTA in buffer solution, reversible response of probe to Zn2+ could be observed in MCF-7 cells imaging.
Collapse
Affiliation(s)
- Nadeem Ahmed
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
| | - Wajeeha Zareen
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
| | - Di Zhang
- Institute of Agricultural Quality Standards and Testing Technology, Henan Academy of Agricultural Sciences, Zhengzhou 450002, China.
| | - Xiaopeng Yang
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
| | - Yong Ye
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, China.
| |
Collapse
|
41
|
Miao L, Liu W, Qiao Q, Li X, Xu Z. Fluorescent antibiotics for real-time tracking of pathogenic bacteria. J Pharm Anal 2020; 10:444-451. [PMID: 33133728 PMCID: PMC7591806 DOI: 10.1016/j.jpha.2020.09.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2020] [Revised: 09/15/2020] [Accepted: 09/15/2020] [Indexed: 01/23/2023] Open
Abstract
The harm of pathogenic bacteria to humans has promoted extensive research on physiological processes of pathogens, such as the mechanism of bacterial infection, antibiotic mode of action, and bacterial antimicrobial resistance. Most of these processes can be better investigated by timely tracking of fluorophore-derived antibiotics in living cells. In this paper, we will review the recent development of fluorescent antibiotics featuring the conjugation with various fluorophores, and focus on their applications in fluorescent imaging and real-time detection for various physiological processes of bacteria in vivo. Profiles of Fluorophores-derived Antibiotics in Development. Discussing the influence on antibiotic activity after conjugating fluorophore. Fluorescent Tracking to better understand physiological processes of Pathogenic bacteria. Live-Cell imaging to investigate bacteria in their native environment.
Collapse
Affiliation(s)
- Lu Miao
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
| | - Weiwei Liu
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China.,State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian, 116012, China
| | - Qinglong Qiao
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
| | - Xiaolian Li
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian, 116012, China
| | - Zhaochao Xu
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
| |
Collapse
|
42
|
Ning J, Lin X, Su F, Sun A, Liu H, Luo J, Wang L, Tian Y. Development of a molecular K + probe for colorimetric/fluorescent/photoacoustic detection of K . Anal Bioanal Chem 2020; 412:6947-6957. [PMID: 32712812 DOI: 10.1007/s00216-020-02826-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Revised: 07/05/2020] [Accepted: 07/16/2020] [Indexed: 02/07/2023]
Abstract
The potassium ion (K+) plays significant roles in many biological processes. To date, great efforts have been devoted to the development of K+ sensors for colorimetric, fluorescent, and photoacoustic detection of K+ separately. However, the development of molecular K+ probes for colorimetric detection of urinary K+, monitoring K+ fluxes in living cells by fluorescence imaging, and photoacoustic imaging of K+ dynamics in deep tissues still remains an open challenge. Herein, we report the first molecular K+ probe (NK2) for colorimetric, fluorescent, and photoacoustic detection of K+. NK2 is composed of 2-dicyanomethylene-3-cyano-4,5,5-trimethyl-2,5-dihydrofuran (TCF) as the chromophore and phenylazacrown-6-lariat ether (ACLE) as the K+ recognition unit. Predominate features of NK2 include a short synthetic procedure, high K+ selectivity, large detection range (5-200 mM), and triple-channel detection manner. NK2 shows good response to K+ with obvious color changes, fluorescence enhancements (about threefold), and photoacoustic intensity changes. The existence of other metal ions (including Na+, Mg2+, Ca2+, Fe2+) and pH changes (6.5-9.0) have no obvious influence on K+ sensing of NK2. Portable test strips stained by NK2 can be used to qualitatively detect urinary K+ by color changes for self-diagnosis of diseases induced by high levels of K+. NK2 can be utilized to monitor K+ fluxes in living cells by fluorescent imaging. We also find its excellent performance in photoacoustic imaging of different K+ concentrations in the mouse ear. NK2 is the first molecular K+ probe for colorimetric, fluorescent, and photoacoustic detection of K+ in urine, in living cells, and in the mouse ear. The development of NK2 will broaden K+ probes' design and extend their applications to different fields. Graphical abstract.
Collapse
Affiliation(s)
- Juewei Ning
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Xiangwei Lin
- Department of Biomedical Engineering, City University of Hong Kong, 83 Tat Chee Ave, Kowloon, 999077, Hong Kong, China.,City University of Hong Kong Shenzhen Research Institute, Yuexing Yi Dao, Nanshan District, Shenzhen, 518057, China
| | - Fengyu Su
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen, 518055, China.,Academy for Advanced Interdisciplinary Studies, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Aihui Sun
- Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Hongtian Liu
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Jingdong Luo
- Department of Chemistry, City University of Hong Kong, 83 Tat Chee Ave, Kowloon, 999077, Hong Kong, China
| | - Lidai Wang
- Department of Biomedical Engineering, City University of Hong Kong, 83 Tat Chee Ave, Kowloon, 999077, Hong Kong, China. .,City University of Hong Kong Shenzhen Research Institute, Yuexing Yi Dao, Nanshan District, Shenzhen, 518057, China.
| | - Yanqing Tian
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen, 518055, China.
| |
Collapse
|
43
|
O'Shea C, Kabir SN, Holmes AP, Lei M, Fabritz L, Rajpoot K, Pavlovic D. Cardiac optical mapping - State-of-the-art and future challenges. Int J Biochem Cell Biol 2020; 126:105804. [PMID: 32681973 PMCID: PMC7456775 DOI: 10.1016/j.biocel.2020.105804] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Revised: 07/10/2020] [Accepted: 07/13/2020] [Indexed: 11/06/2022]
Abstract
Cardiac optical mapping is a fluorescent imaging method to study electrical behaviour and calcium handling in the heart. Optical mapping provides higher spatio-temporal resolution than electrode techniques, allowing unique insights into cardiac electrophysiology in health and disease from a variety of pre-clinical models. Both transmembrane voltage and intracellular calcium dynamics can be studied with the use of appropriate fluorescent dyes. Optical mapping has traditionally required the use of mechanical uncouplers, however computational and technical developments have lessened the requirement for these agents. Novel fluorescent dyes have been developed to optimise spectral properties, experimental timescales, biological compatibility and fluorescence output. The combination of these developments has made possible novel mapping experiments, including recent in vivo application of the technique.
Cardiac optical mapping utilises fluorescent dyes to directly image the electrical function of the heart at a high spatio-temporal resolution which far exceeds electrode techniques. It has therefore become an invaluable tool in cardiac electrophysiological research to map the propagation of heterogeneous electrical signals across the myocardium. In this review, we introduce the principles behind cardiac optical mapping and discuss some of the challenges and state of the art in the field. Key advancements discussed include newly developed fluorescent indicators, tools for the analysis of complex datasets, panoramic imaging systems and technical and computational approaches to realise optical mapping in freely beating hearts.
Collapse
Affiliation(s)
- Christopher O'Shea
- Institute of Cardiovascular Sciences, University of Birmingham, Birmingham, UK
| | - S Nashitha Kabir
- Institute of Cardiovascular Sciences, University of Birmingham, Birmingham, UK
| | - Andrew P Holmes
- Institute of Cardiovascular Sciences, University of Birmingham, Birmingham, UK; Institute of Clinical Sciences, University of Birmingham, Birmingham, UK
| | - Ming Lei
- Department of Pharmacology, University of Oxford, Oxford, UK
| | - Larissa Fabritz
- Institute of Cardiovascular Sciences, University of Birmingham, Birmingham, UK; Department Cardiology, University Hospital Birmingham, Birmingham, UK
| | - Kashif Rajpoot
- School of Computer Science, University of Birmingham, Birmingham, UK
| | - Davor Pavlovic
- Institute of Cardiovascular Sciences, University of Birmingham, Birmingham, UK.
| |
Collapse
|
44
|
Wuttisarnwattana P, Eid S, Gargesha M, Cooke KR, Wilson DL. Cryo-imaging of Stem Cell Biodistribution in Mouse Model of Graft-Versus-Host-Disease. Ann Biomed Eng 2020; 48:1702-1711. [PMID: 32103369 DOI: 10.1007/s10439-020-02487-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2019] [Accepted: 02/21/2020] [Indexed: 12/13/2022]
Abstract
We demonstrated the use of multispectral cryo-imaging and software to analyze human mesenchymal stromal cells (hMSCs) biodistribution in mouse models of graft-versus-host-disease (GVHD) following allogeneic bone marrow transplantation (BMT). We injected quantum dot labeled MSCs via tail vein to mice receiving BMT and analyzed hMSC biodistribution in major organs (e.g. lung, liver, spleen, kidneys and bone marrow). We compared the biodistribution of hMSCs in mice following allogeneic BMT recipients (with GVHD) to the biodistribution following syngeneic BMT (without GVHD). Cryo-imaging system revealed cellular biodistribution and redistribution patterns in the animal model. We initially found clusters of cells in the lung that eventually dissociated to single cells and redistributed to other organs within 72 h. The in vivo half-life of the exogenous MSCs was about 21 h. We found that the biodistribution of stromal cells was not related to blood flow, rather cells preferentially homed to specific organs. In conclusion, cryo-imaging was suitable for analyzing the cellular biodistribution. It could provide capabilities of visualizing cells anywhere in the mouse model with single cell sensitivity. By characterizing the biodistribution and anatomical specificity of a therapeutic cellular product, we believe that cryo-imaging can play an important role in the advancement of stem and stromal cell therapies and regenerative medicine.
Collapse
Affiliation(s)
- Patiwet Wuttisarnwattana
- Department of Computer Engineering, Faculty of Engineering, Chiang Mai University, Chiang Mai, 50200, Thailand. .,Biomedical Engineering Institute, Chiang Mai University, Chiang Mai, Thailand.
| | - Saada Eid
- Department of Pediatric Hematology and Oncology, Case Western Reserve University, Cleveland, OH, USA
| | | | - Kenneth R Cooke
- Department of Oncology, The Sidney Kimmel Comprehensive Cancer Center, School of Medicine, Johns Hopkins University, Baltimore, MD, USA
| | - David L Wilson
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH, USA
| |
Collapse
|
45
|
Wei C, Wang X, Li X, Jia X, Hao X, Zhang J, Zhang P, Li X. An isophorone-fused near-infrared fluorescent probe with a large Stokes shift for imaging endogenous nitroxyl in living cells and zebrafish. Spectrochim Acta A Mol Biomol Spectrosc 2020; 227:117765. [PMID: 31707025 DOI: 10.1016/j.saa.2019.117765] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Revised: 11/04/2019] [Accepted: 11/04/2019] [Indexed: 06/10/2023]
Abstract
Nitroxyl (HNO) plays an important role in multiple physiological and pathological processes, but the detailed generation mechanism of the endogenous HNO still remained to explore and perfect further. There is an urgent need to develop an excellent fluorescent probe for selective recognition and sensitive detection of HNO in biological systems. Near-infrared (NIR) fluorescent probes with a large Stokes shift are an ideal tool for bioimaging applications. Here, we have developed a NIR fluorescent probe with a large Stokes shift, namely, NIR-HNO, to monitor HNO in cells and zebrafish. NIR-HNO consists of an isophorone-fused NIR fluorescence reporter and a diphenylphosphinobenzoyl HNO-responsive unit. Based on an aza-ylide intramolecular ester aminolysis reaction, NIR-HNO showed a rapid selective NIR fluorescent turn-on response for HNO, high sensitivity (detection limit was 39.6 nM), and large Stokes shift (265 nm). The biological imaging results indicate that NIR-HNO is a good candidate for imaging of endogenous HNO in living systems.
Collapse
Affiliation(s)
- Chao Wei
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of Ministry of Education, Key Laboratory of Chemical Biology of Hebei Province, College of Chemistry and Environmental Science, Hebei University, Baoding 071002, China; College of Chemistry and Environmental Science, Hebei University, Baoding 071002, China.
| | - Xiaofen Wang
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of Ministry of Education, Key Laboratory of Chemical Biology of Hebei Province, College of Chemistry and Environmental Science, Hebei University, Baoding 071002, China; College of Chemistry and Environmental Science, Hebei University, Baoding 071002, China
| | - Xueyan Li
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of Ministry of Education, Key Laboratory of Chemical Biology of Hebei Province, College of Chemistry and Environmental Science, Hebei University, Baoding 071002, China; College of Chemistry and Environmental Science, Hebei University, Baoding 071002, China
| | - Xu Jia
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of Ministry of Education, Key Laboratory of Chemical Biology of Hebei Province, College of Chemistry and Environmental Science, Hebei University, Baoding 071002, China; College of Chemistry and Environmental Science, Hebei University, Baoding 071002, China
| | - Xinya Hao
- College of Chemistry and Environmental Science, Hebei University, Baoding 071002, China
| | - Jiangyan Zhang
- College of Chemistry and Environmental Science, Hebei University, Baoding 071002, China
| | - Pingzhu Zhang
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of Ministry of Education, Key Laboratory of Chemical Biology of Hebei Province, College of Chemistry and Environmental Science, Hebei University, Baoding 071002, China; College of Chemistry and Environmental Science, Hebei University, Baoding 071002, China
| | - Xiaoliu Li
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of Ministry of Education, Key Laboratory of Chemical Biology of Hebei Province, College of Chemistry and Environmental Science, Hebei University, Baoding 071002, China; College of Chemistry and Environmental Science, Hebei University, Baoding 071002, China.
| |
Collapse
|
46
|
Montaño AR, Wang LG, Barth CW, Shams NA, Kumarapeli KASU, Gibbs SL. In Vivo Nerve-Specificity of Rhodamines and Si-rhodamines. Proc SPIE Int Soc Opt Eng 2020; 11222:112220I. [PMID: 32255888 PMCID: PMC7115044 DOI: 10.1117/12.2545311] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Accidental nerve damage or transection of vital nerve structures remains an unfortunate reality that is often associated with surgery. Despite the existence of nerve-sparing techniques, the success of such procedures is not only complicated by anatomical variance across patients but is also highly dependent on a surgeon's first-hand experience that is acquired over numerous procedures through trial and error, often with highly variable success rates. Fluorescent small molecules, such as rhodamines and fluoresceins have proven incredibly useful for biological imaging in the life sciences, and they appeared to have potential in illuminating vital nerve structures during surgical procedures. In order to make use of the current clinically relevant imaging systems and to provide surgeons with fluorescent contrast largely free from the interference of hemoglobin and water, it was first necessary to spectrally tune known fluorescent scaffolds towards near infrared (NIR) wavelengths. To determine whether the well-documented Si-substitution strategy could be applied towards developing a NIR fluorophore that retained nerve-specific properties of candidate molecules, an in vivo comparison was made between two compounds previously shown to highlight nervous structures - TMR and Rhodamine B - and their Si-substituted derivatives.
Collapse
Affiliation(s)
- Antonio R. Montaño
- Biomedical Engineering Department, Oregon Health & Science University, Portland, OR 97201
| | - Lei G. Wang
- Biomedical Engineering Department, Oregon Health & Science University, Portland, OR 97201
| | - Connor W. Barth
- Biomedical Engineering Department, Oregon Health & Science University, Portland, OR 97201
| | - Nourhan A. Shams
- Biomedical Engineering Department, Oregon Health & Science University, Portland, OR 97201
| | | | - Summer L. Gibbs
- Biomedical Engineering Department, Oregon Health & Science University, Portland, OR 97201
- Knight Cancer Institute, Oregon Health & Science University, Portland, OR 97201
- OHSU Center for Spatial Systems Biomedicine, Oregon Health & Science University, Portland, OR 97201
| |
Collapse
|
47
|
Liu MX, Xing JD, Su XQ. [Application of indocyanine green labeled near-infrared fluorescence laparoscopy in gastric cancer]. Zhonghua Zhong Liu Za Zhi 2019; 41:891-5. [PMID: 31874544 DOI: 10.3760/cma.j.issn.0253-3766.2019.12.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: With the development of laparoscopic surgery technique, the concept of minimally invasive surgery has gradually gained popularity. Laparoscopic minimally invasive technique applied in the treatment of gastric cancer has been recognized by surgeons. In recent years, the indocyanine green labeled near-infrared fluorescence laparoscopic technique has been gradually applied to the surgical treatment of gastric cancer. This technique overcomes the drawbacks of tactile lack of laparoscopic surgery and makes the laparoscopic surgery of gastric cancer more precise and minimally invasive. This article introduces the injection method of indocyanine green and discusses the application of fluorescent laparoscopy in gastric cancer surgery, including intraoperative tumor localization of early gastric cancer, sentinel lymph node biopsy, lymph node navigation of advanced gastric cancer, digestive tract reconstruction and gastrointestinal blood perfusion assessment during the procedure.
Collapse
|
48
|
Abstract
Microplastics (MPs, plastics 100 nm-5 mm in diameter) are estimated to accumulate in agricultural soils in quantities that exceed the total MP burden in ocean waters. Despite a wealth of information relating to the accumulation of MPs in aquatic species, there is little information on the uptake of MPs by terrestrial plants. Information about location of MPs in plant tissues is critical to understand the modes of their interaction with plants. Polystyrene (PS) is one of the most commonly used plastic polymers worldwide and it is often found in MPs sampled in the environment. The performance of traditional detection methods (i.e., transmission electron microscopy, TEM and scanning electron microscopy, SEM) for nanoparticles is limited due to the extensive sample preparation and the limited field of view. Here we report an approach for the imaging of different sizes of PS plastic beads (ranging from submicrometer to micrometer-sized) within plant tissues by using confocal laser scanning microscope (CLSM). Fluorescent dye Nile blue or 4-chloro-7-nitro-1,2,3-benzoxadiazole were encapsulated into the PS microbeads through swelling method and they were used to detect the localization of PS beads in the root and the green tissue respectively. •This is a simple and rapid approach for imaging of MPs in plant.•The fluorescent dyes can produce bright and stable emission signals that are distinguishable from the autofluorescence background of plant tissues.•The dyes leakage in the aqueous phase can be assumed to be negligible.
Collapse
Affiliation(s)
- Lianzhen Li
- Key Laboratory of Coastal Zone Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research (YIC), Chinese Academy of Sciences (CAS), China
| | - Yongming Luo
- Key Laboratory of Coastal Zone Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research (YIC), Chinese Academy of Sciences (CAS), China.,Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science (ISSAS), Chinese Academy of Sciences (CAS), China
| | - Willie J G M Peijnenburg
- National Institute of Public Health and the Environment, Center for Safety of Substances and Products, P.O. Box 1, 3720 BA, Bilthoven, the Netherlands.,Institute of Environmental Sciences (CML), Leiden University, Leiden, the Netherlands
| | - Ruijie Li
- Key Laboratory of Coastal Zone Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research (YIC), Chinese Academy of Sciences (CAS), China
| | - Jie Yang
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science (ISSAS), Chinese Academy of Sciences (CAS), China
| | - Qian Zhou
- Key Laboratory of Coastal Zone Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research (YIC), Chinese Academy of Sciences (CAS), China
| |
Collapse
|
49
|
Cho A, Cho SS, Buch VP, Buch LY, Lee JYK. Second Window Indocyanine Green (SWIG) Near Infrared Fluorescent Transventricular Biopsy of Pineal Tumor. World Neurosurg 2020; 134:196-200. [PMID: 31669685 DOI: 10.1016/j.wneu.2019.10.113] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2019] [Revised: 10/18/2019] [Accepted: 10/18/2019] [Indexed: 12/29/2022]
Abstract
BACKGROUND Second Window Indocyanine Green (SWIG) is a novel technique for real-time, intraoperative tumor visualization using a high-dose infusion of indocyanine green (ICG) 24 hours before surgery. Due to pathologic diversity found in the pineal region, tissue diagnosis in patients with pineal region mass is essential to optimize further clinical management. CASE DESCRIPTION We present the case of a 75-year-old woman with known pineal region mass for 18 years, who presented with progressive classic signs and symptoms of obstructive hydrocephalus over the past 6 months. Preoperative imaging confirmed a contrast-enhancing pineal region tumor, which appeared to be obstructing the aqueduct of Sylvius, causing proximal obstructive hydrocephalus. We delivered 5 mg/kg of ICG intravenously 24 hours before the surgery. The patient underwent an endoscopic third ventriculostomy and a biopsy of the pineal lesion. The tumor demonstrated clear near-infrared fluorescence, which was distinct from surrounding third ventricle floor and ependyma. The signal-to-background ratio was 2.9. The final pathology report revealed a World Health Organization grade I pineocytoma. CONCLUSIONS We report on a novel application of near-infrared fluorescence for tumor identification of pineal region tumors, using the "SWIG technique."
Collapse
|
50
|
Lei Y, Ren W, Wang CK, Tao RR, Xiang HJ, Feng LL, Gao YP, Jiang Q, Li X, Hu Y, Han F. Visualizing Autophagic Flux during Endothelial Injury with a Pathway-Inspired Tandem-Reaction Based Fluorogenic Probe. Am J Cancer Res 2019; 9:5672-5680. [PMID: 31534510 PMCID: PMC6735386 DOI: 10.7150/thno.33867] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2019] [Accepted: 06/07/2019] [Indexed: 12/18/2022] Open
Abstract
Autophagy is a dynamic and complicated catabolic process. Imaging autophagic flux can clearly advance knowledge of its pathophysiology significance. While the most common way autophagy is imaged relies on fluorescent protein-based probes, this method requires substantial genetic manipulation that severely restricts the application. Small fluorescent probes capable of tracking autophagic flux with good spatiotemporal resolution are highly demanable. Methods: In this study, we developed a small-molecule fluorogenic probe (AFG-1) that facilitates real-time imaging of autophagic flux in both intact cells and live mice. AFG-1 is inspired by the cascading nitrosative and acidic microenvironments evolving during autophagy. It operates over two sequential steps. In the first step, AFG-1 responds to the up-regulated peroxynitrite at the initiation of autophagy by its diphenylamino group being oxidatively dearylated to yield a daughter probe. In the second step, the daughter probe responds to the acidic autolysosomes at the late stage of autophagy by being protonated. Results: This pathway-dependent mechanism has been confirmed first by sequentially sensing ONOO- and acid in aqueous solution, and then by imaging autophagic flux in live cells. Furthermore, AFG-1 has been successfully applied to visualize autophagic flux in real-time in live mice following brain ischemic injury, justifying its robustness. Conclusion: Due to the specificity, easy operation, and the dynamic information yielded, AFG-1 should serve as a potential tool to explore the roles of autophagy under various pathological settings.
Collapse
|