1
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Sakama A, Seo H, Hara J, Shindo Y, Ikeda Y, Oka K, Citterio D, Hiruta Y. Rational design of pH-responsive near-infrared spirocyclic cyanines: the effects of substituents and the external environment. Chem Commun (Camb) 2024; 60:5984-5987. [PMID: 38770871 DOI: 10.1039/d4cc01484g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/22/2024]
Abstract
pH-responsive spirocyclic cyanine dyes were designed and synthesized. The equilibrium constant for cyclization (pKcycl) could be rationally controlled by changing the nucleophilic moiety and the side chains. Encapsulation in polymeric micelles inhibited the H-aggregation of the dye, and the pKcycl could be shifted according to the amphiphilic polymer employed.
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Affiliation(s)
- Akihiro Sakama
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, Hiyoshi 3-14-1, Kohoku-ku, Yokohama, Kanagawa, 223-8522, Japan.
| | - Hyemin Seo
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, Hiyoshi 3-14-1, Kohoku-ku, Yokohama, Kanagawa, 223-8522, Japan.
| | - Joji Hara
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, Hiyoshi 3-14-1, Kohoku-ku, Yokohama, Kanagawa, 223-8522, Japan.
| | - Yutaka Shindo
- Department of Biosciences and Informatics, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, Kanagawa 223-8522, Japan
- School of Frontier Engineering, Kitasato University, 1-15-1 Kitasato, Minami-ku, Sagamihara, Kanagawa, 252-0373, Japan
| | - Yuma Ikeda
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, Hiyoshi 3-14-1, Kohoku-ku, Yokohama, Kanagawa, 223-8522, Japan.
| | - Kotaro Oka
- Department of Biosciences and Informatics, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, Kanagawa 223-8522, Japan
- School of Frontier Engineering, Kitasato University, 1-15-1 Kitasato, Minami-ku, Sagamihara, Kanagawa, 252-0373, Japan
- Waseda Research Institute for Science and Engineering, Waseda University, 2-2 Wakamatsu-cho, Shinjuku-ku, Tokyo 162-8480, Japan
- College of Medicine, Kaohsiung Medical University, Kaohsiung City 80708, Taiwan
| | - Daniel Citterio
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, Hiyoshi 3-14-1, Kohoku-ku, Yokohama, Kanagawa, 223-8522, Japan.
| | - Yuki Hiruta
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, Hiyoshi 3-14-1, Kohoku-ku, Yokohama, Kanagawa, 223-8522, Japan.
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2
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Ma J, Sun R, Xia K, Xia Q, Liu Y, Zhang X. Design and Application of Fluorescent Probes to Detect Cellular Physical Microenvironments. Chem Rev 2024; 124:1738-1861. [PMID: 38354333 DOI: 10.1021/acs.chemrev.3c00573] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2024]
Abstract
The microenvironment is indispensable for functionality of various biomacromolecules, subcellular compartments, living cells, and organisms. In particular, physical properties within the biological microenvironment could exert profound effects on both the cellular physiology and pathology, with parameters including the polarity, viscosity, pH, and other relevant factors. There is a significant demand to directly visualize and quantitatively measure the fluctuation in the cellular microenvironment with spatiotemporal resolution. To satisfy this need, analytical methods based on fluorescence probes offer great opportunities due to the facile, sensitive, and dynamic detection that these molecules could enable in varying biological settings from in vitro samples to live animal models. Herein, we focus on various types of small molecule fluorescent probes for the detection and measurement of physical parameters of the microenvironment, including pH, polarity, viscosity, mechanical force, temperature, and electron potential. For each parameter, we primarily describe the chemical mechanisms underlying how physical properties are correlated with changes of various fluorescent signals. This review provides both an overview and a perspective for the development of small molecule fluorescent probes to visualize the dynamic changes in the cellular environment, to expand the knowledge for biological process, and to enrich diagnostic tools for human diseases.
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Affiliation(s)
- Junbao Ma
- Department of Chemistry and Research Center for Industries of the Future, Westlake University, 600 Dunyu Road, Hangzhou 310030, Zhejiang Province, China
- Westlake Laboratory of Life Sciences and Biomedicine, 18 Shilongshan Road, Hangzhou 310024, Zhejiang Province, China
- Institute of Natural Sciences, Westlake Institute for Advanced Study, Hangzhou 310030, Zhejiang Province, China
| | - Rui Sun
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, Liaoning 116023, China
- University of the Chinese Academy of Sciences, 19 A Yuquan Road, Shijingshan District, Beijing 100049, China
| | - Kaifu Xia
- Department of Chemistry and Research Center for Industries of the Future, Westlake University, 600 Dunyu Road, Hangzhou 310030, Zhejiang Province, China
- Westlake Laboratory of Life Sciences and Biomedicine, 18 Shilongshan Road, Hangzhou 310024, Zhejiang Province, China
- Institute of Natural Sciences, Westlake Institute for Advanced Study, Hangzhou 310030, Zhejiang Province, China
| | - Qiuxuan Xia
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, Liaoning 116023, China
- University of the Chinese Academy of Sciences, 19 A Yuquan Road, Shijingshan District, Beijing 100049, China
| | - Yu Liu
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, Liaoning 116023, China
- State Key Laboratory of Medical Proteomics, National Chromatographic R. & A. Center, Chinese Academy of Sciences Dalian Liaoning 116023, China
| | - Xin Zhang
- Department of Chemistry and Research Center for Industries of the Future, Westlake University, 600 Dunyu Road, Hangzhou 310030, Zhejiang Province, China
- Westlake Laboratory of Life Sciences and Biomedicine, 18 Shilongshan Road, Hangzhou 310024, Zhejiang Province, China
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3
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Adair LD, New EJ. Molecular fluorescent sensors for in vivo imaging. Curr Opin Biotechnol 2023; 83:102973. [PMID: 37531801 DOI: 10.1016/j.copbio.2023.102973] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Revised: 06/26/2023] [Accepted: 07/03/2023] [Indexed: 08/04/2023]
Abstract
Small-molecule fluorophores are powerful tools for biological research. They have enabled researchers to study cellular architecture and decipher biological processes. Responsive fluorescent sensors have enabled the study of a wide range of analytes and their effects on biological phenomena in situ. The application of fluorescent sensors to studies in living organisms is complicated by challenges such as biocompatibility, chemostability, photostability and sufficient penetration of light through living tissues. Translation to in vivo imaging is therefore not straightforward and requires innovative approaches. Recent advances in the design of fluorophores with improved photophysical properties and the development of long-wavelength-emitting fluorophore scaffolds that can be modularly functionalised with targeting and sensing groups have allowed the application of fluorogenic, ratiometric and reversible sensors in vivo.
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Affiliation(s)
- Liam D Adair
- School of Chemistry, The University of Sydney, NSW 2006, Australia; Australian Research Council Centre of Excellence for Innovations in Peptide and Protein Science, The University of Sydney, NSW 2006, Australia; The University of Sydney Nano Institute (Sydney Nano), The University of Sydney, NSW 2006, Australia.
| | - Elizabeth J New
- School of Chemistry, The University of Sydney, NSW 2006, Australia; Australian Research Council Centre of Excellence for Innovations in Peptide and Protein Science, The University of Sydney, NSW 2006, Australia; The University of Sydney Nano Institute (Sydney Nano), The University of Sydney, NSW 2006, Australia.
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4
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Usama SM, Caldwell DR, Shrestha P, Luciano MP, Patel NL, Kalen JD, Ivanic J, Schnermann MJ. Modified norcyanines enable ratiometric pH imaging beyond 1000 nm. Biosens Bioelectron 2022; 217:114610. [PMID: 36137483 PMCID: PMC9555292 DOI: 10.1016/j.bios.2022.114610] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2022] [Revised: 07/26/2022] [Accepted: 07/28/2022] [Indexed: 02/06/2023]
Abstract
Activatable fluorophores with emission beyond 1000 nm have the potential to enable high contrast imaging in complex in vivo settings. However, there are few scaffolds that can be applied to this challenge. Here we detail the synthesis and evaluation of benzo[c,d]indole-substituted norcyanines that enable pH responsive fluorescence imaging in the long wavelength (>1150 nm) range. A key component of our molecular design is the installation of a hydrophilic substituted quaternary amine in the central dihydropyridine ring system. A compound with a C4'-phenyl substituent, but not the C4'-protio homologue, exhibits absorbance maxima of 740 nm and 1130 nm in basic and acidic media, respectively, with evidence of J-aggregate-like properties. These two distinct absorbances enabled ratiometric imaging of probe internalization in a tumor model. Overall, these studies provide a new class of activatable long-wavelength responsive fluorophores with promising photophysical properties.
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Affiliation(s)
- Syed Muhammad Usama
- Chemical Biology Laboratory, Center for Cancer Research, National Cancer Institute, Frederick, MD, 21702, United States
| | - Donald R Caldwell
- Chemical Biology Laboratory, Center for Cancer Research, National Cancer Institute, Frederick, MD, 21702, United States
| | - Pradeep Shrestha
- Chemical Biology Laboratory, Center for Cancer Research, National Cancer Institute, Frederick, MD, 21702, United States
| | - Michael P Luciano
- Chemical Biology Laboratory, Center for Cancer Research, National Cancer Institute, Frederick, MD, 21702, United States
| | - Nimit L Patel
- Small Animal Imaging Program, Frederick National Laboratory for Cancer Research, Leidos Biomedical Research Inc, Frederick, MD, 21702, United States
| | - Joseph D Kalen
- Small Animal Imaging Program, Frederick National Laboratory for Cancer Research, Leidos Biomedical Research Inc, Frederick, MD, 21702, United States
| | - Joseph Ivanic
- Advanced Biomedical Computational Science, Frederick National Laboratory for Cancer Research, Leidos Biomedical Research Inc, Frederick, MD, 21702, United States
| | - Martin J Schnermann
- Chemical Biology Laboratory, Center for Cancer Research, National Cancer Institute, Frederick, MD, 21702, United States.
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5
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Near-infrared fluorescence imaging during ex vivo lung perfusion: Non-invasive real-time evaluation of regional lung perfusion and edema. J Thorac Cardiovasc Surg 2022; 164:e185-e203. [DOI: 10.1016/j.jtcvs.2022.02.048] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Revised: 02/16/2022] [Accepted: 02/28/2022] [Indexed: 11/21/2022]
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6
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Li H, Kim Y, Jung H, Hyun JY, Shin I. Near-infrared (NIR) fluorescence-emitting small organic molecules for cancer imaging and therapy. Chem Soc Rev 2022; 51:8957-9008. [DOI: 10.1039/d2cs00722c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We discuss recent advances made in the development of NIR fluorescence-emitting small organic molecules for tumor imaging and therapy.
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Affiliation(s)
- Hui Li
- Department of Chemistry, Yonsei University, 03722 Seoul, Republic of Korea
| | - Yujun Kim
- Department of Chemistry, Yonsei University, 03722 Seoul, Republic of Korea
| | - Hyoje Jung
- Department of Chemistry, Yonsei University, 03722 Seoul, Republic of Korea
| | - Ji Young Hyun
- Department of Drug Discovery, Data Convergence Drug Research Center, Korea Research Institute of Chemical Technology (KRICT), Daejeon 34114, Republic of Korea
| | - Injae Shin
- Department of Chemistry, Yonsei University, 03722 Seoul, Republic of Korea
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7
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Dong X, Chi J, Shao C, Lei L, Yang L, Zhao C, Liu H. Multifunctional hydrogel microsphere with reflection in near-infrared region for in vivo pH monitoring and drug release in tumor microenvironment. CHEMICAL ENGINEERING JOURNAL 2021; 421:127873. [DOI: 10.1016/j.cej.2020.127873] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/04/2024]
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8
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Shen J, Shao K, Zhang W, He Y. Hypoxia-Triggered In Situ Self-Assembly of a Charge Switchable Azo Polymer with AIEgens for Tumor Imaging. ACS Macro Lett 2021; 10:702-707. [PMID: 35549096 DOI: 10.1021/acsmacrolett.1c00183] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
In recent years, stimuli-responsive in situ self-assembly fluorescent probes for tumor imaging, which leverage the advantage of efficient penetrability and satisfactory accumulation, have attracted much attention. In this work, we rationally integrate charge switchable azobenzene moiety and long wavelength aggregation-induced emission fluorogens (AIEgens) into one water-soluble polymer to construct the hypoxia-triggered in situ self-assembly fluorescent probe for tumor imaging. Due to the good water solubility and the quenching effect of azobenzene moiety, the AIEgens containing polymer showed no significant fluorescence. Under a tumor hypoxic environment, the enzymatic reduction of azobenzene triggered cationic quaternary ammonium converting into anionic carboxylate. Then self-assembly nanoparticles were obtained, driven by the electrostatic interaction between negatively charged carboxylate ion and positively charged AIEgens, which emitted a strong orange-red fluorescence.
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Affiliation(s)
- Jiajia Shen
- Department of Chemical Engineering, Key Laboratory of Advanced Materials (MOE), Tsinghua University, Beijing 100084, China
| | - Kuanchun Shao
- Department of Chemical Engineering, Key Laboratory of Advanced Materials (MOE), Tsinghua University, Beijing 100084, China
| | - Wenlong Zhang
- Department of Chemical Engineering, Key Laboratory of Advanced Materials (MOE), Tsinghua University, Beijing 100084, China
| | - Yaning He
- Department of Chemical Engineering, Key Laboratory of Advanced Materials (MOE), Tsinghua University, Beijing 100084, China
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9
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Usama SM, Inagaki F, Kobayashi H, Schnermann MJ. Norcyanine-Carbamates Are Versatile Near-Infrared Fluorogenic Probes. J Am Chem Soc 2021; 143:5674-5679. [PMID: 33844539 DOI: 10.1021/jacs.1c02112] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Fluorogenic probes in the near-infrared (NIR) region have the potential to provide stimuli-dependent information in living organisms. Here, we describe a new class of fluorogenic probes based on the heptamethine cyanine scaffold, the most broadly used NIR chromophore. These compounds result from modification of heptamethine norcyanines with stimuli-responsive carbamate linkers. The resulting cyanine carbamates (CyBams) exhibit exceptional turn-ON ratios (∼170×) due to dual requirements for NIR emission: carbamate cleavage through 1,6-elimination and chromophore protonation. Illustrating their utility in complex in vivo settings, a γ-glutamate substituted CyBam was applied to imaging γ-glutamyl transpeptidase (GGT) activity in a metastatic model of ovarian cancer. Overall, CyBams have significant potential to extend the reach of fluorogenic strategies to intact tissue and live animal imaging applications.
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Affiliation(s)
- Syed Muhammad Usama
- Chemical Biology Laboratory, Center for Cancer Research, National Cancer Institute, Frederick, Maryland 21702, United States
| | - Fuyuki Inagaki
- Molecular Imaging Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland 20892, United States
| | - Hisataka Kobayashi
- Molecular Imaging Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland 20892, United States
| | - Martin J Schnermann
- Chemical Biology Laboratory, Center for Cancer Research, National Cancer Institute, Frederick, Maryland 21702, United States
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10
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Exner RM, Cortezon‐Tamarit F, Pascu SI. Explorations into the Effect of meso-Substituents in Tricarbocyanine Dyes: A Path to Diverse Biomolecular Probes and Materials. Angew Chem Int Ed Engl 2021; 60:6230-6241. [PMID: 32959963 PMCID: PMC7985877 DOI: 10.1002/anie.202008075] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2020] [Revised: 07/22/2020] [Indexed: 12/13/2022]
Abstract
Polymethine cyanine dyes have been widely recognized as promising chemical tools for a range of life science and biomedical applications, such as fluorescent staining of DNA and proteins in gel electrophoresis, fluorescence guided surgery, or as ratiometric probes for probing biochemical pathways. The photophysical properties of such dyes can be tuned through the synthetic modification of the conjugated backbone, for example, by altering aromatic cores or by varying the length of the conjugated polymethine chain. Alternative routes to shaping the absorption, emission, and photostability of dyes of this family are centered around the chemical modifications on the polymethine chain. This Minireview aims to discuss strategies for the introduction of substituents in the meso-position, their effect on the photophysical properties of these dyes and some structure-activity correlations which could help overcome common limitations in the state of the art in the synthesis.
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Affiliation(s)
- Rüdiger M. Exner
- Department of ChemistryUniversity of BathClaverton DownBathBA2 7AYUK
| | | | - Sofia I. Pascu
- Department of ChemistryUniversity of BathClaverton DownBathBA2 7AYUK
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11
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Prasad S, Chandra A, Cavo M, Parasido E, Fricke S, Lee Y, D'Amone E, Gigli G, Albanese C, Rodriguez O, Del Mercato LL. Optical and magnetic resonance imaging approaches for investigating the tumour microenvironment: state-of-the-art review and future trends. NANOTECHNOLOGY 2021; 32:062001. [PMID: 33065554 DOI: 10.1088/1361-6528/abc208] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The tumour microenvironment (TME) strongly influences tumorigenesis and metastasis. Two of the most characterized properties of the TME are acidosis and hypoxia, both of which are considered hallmarks of tumours as well as critical factors in response to anticancer treatments. Currently, various imaging approaches exist to measure acidosis and hypoxia in the TME, including magnetic resonance imaging (MRI), positron emission tomography and optical imaging. In this review, we will focus on the latest fluorescent-based methods for optical sensing of cell metabolism and MRI as diagnostic imaging tools applied both in vitro and in vivo. The primary emphasis will be on describing the current and future uses of systems that can measure intra- and extra-cellular pH and oxygen changes at high spatial and temporal resolution. In addition, the suitability of these approaches for mapping tumour heterogeneity, and assessing response or failure to therapeutics will also be covered.
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Affiliation(s)
- Saumya Prasad
- Institute of Nanotechnology, National Research Council (CNR-NANOTEC), c/o Campus Ecotekne, via Monteroni, 73100, Lecce, Italy
| | - Anil Chandra
- Institute of Nanotechnology, National Research Council (CNR-NANOTEC), c/o Campus Ecotekne, via Monteroni, 73100, Lecce, Italy
| | - Marta Cavo
- Institute of Nanotechnology, National Research Council (CNR-NANOTEC), c/o Campus Ecotekne, via Monteroni, 73100, Lecce, Italy
| | - Erika Parasido
- Department of Oncology, Georgetown University Medical Center, Washington, DC, United States of America
- Center for Translational Imaging, Georgetown University Medical Center, Washington, DC, United States of America
| | - Stanley Fricke
- Department of Oncology, Georgetown University Medical Center, Washington, DC, United States of America
- Center for Translational Imaging, Georgetown University Medical Center, Washington, DC, United States of America
- Department of Radiology, Georgetown University Medical Center, Washington, DC, United States of America
| | - Yichien Lee
- Department of Oncology, Georgetown University Medical Center, Washington, DC, United States of America
| | - Eliana D'Amone
- Institute of Nanotechnology, National Research Council (CNR-NANOTEC), c/o Campus Ecotekne, via Monteroni, 73100, Lecce, Italy
| | - Giuseppe Gigli
- Institute of Nanotechnology, National Research Council (CNR-NANOTEC), c/o Campus Ecotekne, via Monteroni, 73100, Lecce, Italy
- Department of Mathematics and Physics 'Ennio De Giorgi', University of Salento, via Arnesano, 73100, Lecce, Italy
| | - Chris Albanese
- Department of Oncology, Georgetown University Medical Center, Washington, DC, United States of America
- Center for Translational Imaging, Georgetown University Medical Center, Washington, DC, United States of America
- Department of Radiology, Georgetown University Medical Center, Washington, DC, United States of America
| | - Olga Rodriguez
- Department of Oncology, Georgetown University Medical Center, Washington, DC, United States of America
- Center for Translational Imaging, Georgetown University Medical Center, Washington, DC, United States of America
| | - Loretta L Del Mercato
- Institute of Nanotechnology, National Research Council (CNR-NANOTEC), c/o Campus Ecotekne, via Monteroni, 73100, Lecce, Italy
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12
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Yang Z, Gu B, Jiang C, Zhang L, Liu Q, Song S. A pH-responsive photoacoustic imaging probe for tumor pH imaging in vivo based on polyaniline-bovine serum albumin. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2021; 33:102356. [PMID: 33460778 DOI: 10.1016/j.nano.2020.102356] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Revised: 11/29/2020] [Accepted: 12/13/2020] [Indexed: 02/04/2023]
Abstract
Precise pH detection in tumors can guide the design of pH-responsive drugs and theranostic agents to improve treatment efficacy. However, most reported pH-responsive probes are fluorescent probes, for which in vivo application is limited by low probe penetration depth. In this study, a pH-responsive polyaniline-bovine serum albumin (BSA) probe was constructed for precise pH detection in tumors using photoacoustic imaging. The probe can be used to generate high-resolution images of deep biological tissues. The photoacoustic signal of the polyaniline-BSA probe exhibits a clear linear relationship with pH in the range of 5-6.8 both in vitro and in vivo, indicating that the probe is ideal for precise pH detection in most tumors. The polyaniline-BSA probe also exhibits satisfactory biocompatibility, low toxicity, fast response, and good reversibility. This work provides a useful in vivo pH detection probe for developing pH-responsive drugs and theranostic agents.
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Affiliation(s)
- Ziyi Yang
- Department of Nuclear Medicine, Fudan University Shanghai Cancer Center, Shanghai, China; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China; Center for Biomedical Imaging, Fudan University, Shanghai, China; Shanghai Engineering Research Center of Molecular Imaging Probes, Shanghai, China
| | - Bingxin Gu
- Department of Nuclear Medicine, Fudan University Shanghai Cancer Center, Shanghai, China; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China; Center for Biomedical Imaging, Fudan University, Shanghai, China; Shanghai Engineering Research Center of Molecular Imaging Probes, Shanghai, China
| | - Chunjuan Jiang
- Department of Nuclear Medicine, Fudan University Shanghai Cancer Center, Shanghai, China; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China; Center for Biomedical Imaging, Fudan University, Shanghai, China; Shanghai Engineering Research Center of Molecular Imaging Probes, Shanghai, China
| | - Le Zhang
- Department of Nuclear Medicine, Fudan University Shanghai Cancer Center, Shanghai, China; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China; Center for Biomedical Imaging, Fudan University, Shanghai, China; Shanghai Engineering Research Center of Molecular Imaging Probes, Shanghai, China
| | - Qiufang Liu
- Department of Nuclear Medicine, Fudan University Shanghai Cancer Center, Shanghai, China; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China; Center for Biomedical Imaging, Fudan University, Shanghai, China; Shanghai Engineering Research Center of Molecular Imaging Probes, Shanghai, China
| | - Shaoli Song
- Department of Nuclear Medicine, Fudan University Shanghai Cancer Center, Shanghai, China; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China; Center for Biomedical Imaging, Fudan University, Shanghai, China; Shanghai Engineering Research Center of Molecular Imaging Probes, Shanghai, China.
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13
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Exner RM, Cortezon‐Tamarit F, Pascu SI. Explorations into the Effect of
meso
‐Substituents in Tricarbocyanine Dyes: A Path to Diverse Biomolecular Probes and Materials. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202008075] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Rüdiger M. Exner
- Department of Chemistry University of Bath Claverton Down Bath BA2 7AY UK
| | | | - Sofia I. Pascu
- Department of Chemistry University of Bath Claverton Down Bath BA2 7AY UK
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14
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Chen Y. Recent advances in fluorescent probes for extracellular pH detection and imaging. Anal Biochem 2020; 612:113900. [PMID: 32926864 DOI: 10.1016/j.ab.2020.113900] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Accepted: 08/02/2020] [Indexed: 12/12/2022]
Abstract
Extracellular pH plays vital roles in physiological and pathological processes including tumor metastasis and chemotherapy resistance. Abnormal extracellular pH is known to be associated with various pathological states, such as those in tumors, ischemic stroke, infection, and inflammation. Specifically, dysregulated pH is regarded as a hallmark of cancer because enhanced glycolysis and poor perfusion in most solid malignant tumors create an acidic extracellular environment, which enhances tumor growth, invasion, and metastasis. Close connection between the cell functions with extracellular pH means that precise and real-time measurement of the dynamic change of extracellular pH can provide critical information for not only studying physiological and pathological processes but also diagnosis of cancer and other diseases. This review highlights the recent development of based fluorescent probes for extracellular pH measurement, including design strategies, reaction mechanism and applications for the detection and imaging of extracellular pH.
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Affiliation(s)
- Yi Chen
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, China; University of Chinese Academy of Sciences, Beijing, 100190, China.
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15
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Liu HY, Zhang SQ, Cui MC, Gao LH, Zhao H, Wang KZ. pH-Sensitive Near-IR Emitting Dinuclear Ruthenium Complex for Recognition, Two-Photon Luminescent Imaging, and Subcellular Localization of Cancer Cells. ACS APPLIED BIO MATERIALS 2020; 3:5420-5427. [PMID: 35021715 DOI: 10.1021/acsabm.0c00712] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
A dinuclear Ru(II) complex of [(bpy)2Ru(Hdip)Ru(H2bip)](ClO4)4 {bpy is 2,2'-bipyridine, Hdip is 2-(2,6-di(pyridin-2-yl)-pyridin-4-yl)-1H-imidazo[4,5-f]-[1,10]phenanthroline, and H2bip is 2,6-bis(imidazole-2-yl)-pyridine} was synthesized and characterized by elemental analysis, mass spectrometry, and 1H NMR spectroscopy. Spectrophotometric pH titrations in aqueous buffer and in vitro cell experiments indicated the response ability of the complex to pH fluctuations in the physiological pH range (6.0-8.0). The complex was found to be capable of differentiating live HeLa cells from healthy HEK293 cells by selectively accumulating in lysosomes of the HeLa cells. The low cytotoxicity (IC50 > 100 μM), a large Stokes shift (∼200 nm), strong near-IR emission at ∼700 nm, a relatively long excited state lifetime, high photostability, and solubility make this complex considerably promising in real-time tracking and visualization of lysosomes in live cells. More interestingly, the tumor cell-specific two-photon luminescent imaging properties also endow this Ru complex with potential for applications in high-resolution tumor imaging and luminescence-guided tumor resection.
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Affiliation(s)
- Hui-Yu Liu
- Key Laboratory of Radiopharmaceuticals, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Si-Qi Zhang
- Key Laboratory of Radiopharmaceuticals, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Meng-Chao Cui
- Key Laboratory of Radiopharmaceuticals, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Li-Hua Gao
- School of Science, Beijing Technology and Business University, Key Laboratory of Cosmetic (Beijing Technology and Business University), China National Light Industry, Beijing 100048, China
| | - Hua Zhao
- School of Science, Beijing Technology and Business University, Key Laboratory of Cosmetic (Beijing Technology and Business University), China National Light Industry, Beijing 100048, China
| | - Ke-Zhi Wang
- Key Laboratory of Radiopharmaceuticals, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing 100875, China
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16
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Liu CL, Liu X, Wang Y, Deng Z, Liu T, Sukhova GK, Wojtkiewicz GR, Tang R, Zhang JY, Achilefu S, Nahrendorf M, Libby P, Wang X, Shi GP. Reduced Nhe1 (Na +-H + Exchanger-1) Function Protects ApoE-Deficient Mice From Ang II (Angiotensin II)-Induced Abdominal Aortic Aneurysms. Hypertension 2020; 76:87-100. [PMID: 32475310 DOI: 10.1161/hypertensionaha.119.14485] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
IgE-mediated activation of Nhe1 (Na+-H+ exchanger-1) induces aortic cell extracellular acidification and promotes cell apoptosis. A pH-sensitive probe pHrodo identified acidic regions at positions of macrophage accumulation, IgE expression, and cell apoptosis in human and mouse abdominal aortic aneurysm (AAA) lesions. Ang II (angiotensin II)-induced AAA in Nhe1-insufficient Apoe-/-Nhe1+/- mice and Apoe-/-Nhe1+/+ littermates tested Nhe1 activity in experimental AAA, because Nhe1-/- mice develop ataxia and epileptic-like seizures and die early. Nhe1 insufficiency reduced AAA incidence and size, lesion macrophage and T-cell accumulation, collagen deposition, elastin fragmentation, cell apoptosis, smooth muscle cell loss, and MMP (matrix metalloproteinase) activity. Nhe1 insufficiency also reduced blood pressure and the plasma apoptosis marker TCTP (translationally controlled tumor protein) but did not affect plasma IgE. While pHrodo localized the acidic regions to macrophage clusters, IgE expression, and cell apoptosis in AAA lesions from Apoe-/-Nhe1+/+ mice, such acidic areas were much smaller in lesions from Apoe-/-Nhe1+/- mice. Nhe1-FcεR1 colocalization in macrophages from AAA lesions support a role of IgE-mediated Nhe1 activation. Gelatin zymography, immunoblot, and real-time polymerase chain reaction analyses demonstrated that Nhe1 insufficiency reduced the MMP activity, cysteinyl cathepsin expression, IgE-induced apoptosis, and NF-κB activation in macrophages and blocked IgE-induced adhesion molecule expression in endothelial cells. A near-infrared fluorescent probe (LS662) together with fluorescence reflectance imaging of intact aortas showed reduced acidity in AAA lesions from Nhe-1-insufficient mice. This study revealed extracellular acidity at regions rich in macrophages, IgE expression, and cell apoptosis in human and mouse AAA lesions and established a direct role of Nhe1 in AAA pathogenesis.
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Affiliation(s)
- Cong-Lin Liu
- From the Department of Cardiology, Institute of Clinical Medicine, the First Affiliated Hospital of Zhengzhou University, China (C.-L.L., Y.W., J.-Y.Z., X.W., G.-P.S.).,Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA (C.-L.L., X.L., Y.W., Z.D., T.L., G.K.S., P.L., G.-P.S.)
| | - Xin Liu
- Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA (C.-L.L., X.L., Y.W., Z.D., T.L., G.K.S., P.L., G.-P.S.)
| | - Yunzhe Wang
- From the Department of Cardiology, Institute of Clinical Medicine, the First Affiliated Hospital of Zhengzhou University, China (C.-L.L., Y.W., J.-Y.Z., X.W., G.-P.S.).,Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA (C.-L.L., X.L., Y.W., Z.D., T.L., G.K.S., P.L., G.-P.S.)
| | - Zhiyong Deng
- Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA (C.-L.L., X.L., Y.W., Z.D., T.L., G.K.S., P.L., G.-P.S.)
| | - Tianxiao Liu
- Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA (C.-L.L., X.L., Y.W., Z.D., T.L., G.K.S., P.L., G.-P.S.)
| | - Galina K Sukhova
- Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA (C.-L.L., X.L., Y.W., Z.D., T.L., G.K.S., P.L., G.-P.S.)
| | - Gregory R Wojtkiewicz
- Center for Systems Biology, Massachusetts General Hospital, Harvard Medical School, Boston (G.R.W., M.N.)
| | - Rui Tang
- Mallinckrodt Institute of Radiology, Washington University School of Medicine, St. Louis, MO (R.T., S.A.)
| | - Jin-Ying Zhang
- From the Department of Cardiology, Institute of Clinical Medicine, the First Affiliated Hospital of Zhengzhou University, China (C.-L.L., Y.W., J.-Y.Z., X.W., G.-P.S.)
| | - Samuel Achilefu
- Mallinckrodt Institute of Radiology, Washington University School of Medicine, St. Louis, MO (R.T., S.A.)
| | - Matthias Nahrendorf
- Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA (C.-L.L., X.L., Y.W., Z.D., T.L., G.K.S., P.L., G.-P.S.)
| | - Peter Libby
- Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA (C.-L.L., X.L., Y.W., Z.D., T.L., G.K.S., P.L., G.-P.S.)
| | - Xiaofang Wang
- From the Department of Cardiology, Institute of Clinical Medicine, the First Affiliated Hospital of Zhengzhou University, China (C.-L.L., Y.W., J.-Y.Z., X.W., G.-P.S.)
| | - Guo-Ping Shi
- From the Department of Cardiology, Institute of Clinical Medicine, the First Affiliated Hospital of Zhengzhou University, China (C.-L.L., Y.W., J.-Y.Z., X.W., G.-P.S.).,Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA (C.-L.L., X.L., Y.W., Z.D., T.L., G.K.S., P.L., G.-P.S.)
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17
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Paradigms in Fluorescence Molecular Imaging: Maximizing Measurement of Biological Changes in Disease, Therapeutic Efficacy, and Toxicology/Safety. Mol Imaging Biol 2020; 21:599-611. [PMID: 30218390 DOI: 10.1007/s11307-018-1273-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Fluorescence molecular imaging (MI) is an important concept in preclinical research that focuses on the visualization of cellular and biological function in a non-invasive fashion to better understand in vivo disease processes and treatment effects. MI differs fundamentally from traditional preclinical imaging strategies in that it generally relies on reporter probes specific for particular targets or pathways that can be used to reveal biological changes in situ, at the site(s) of disease. In contrast, the more established imaging modalities, like magnetic resonance imaging, X-ray, micro X-ray computed tomography, and ultrasound, historically have relied primarily on late-stage anatomical or physiologic changes. The practical application of fluorescence MI, however, has drifted somewhat from the emphasis on quantifying biology, and based on the publication record, it now appears to include any imaging in which a probe or contrast agent is used to non-invasively acquire in vivo endpoint information. Unfortunately, the mere use of a defined biologically specific probe, in the absence of careful study design, does not guarantee that any useful biological information is actually gained, although often useful endpoint results still can be achieved. This review proposes to add subcategories of MI, termed MI biological assessment (or MIBA), that emphasize a focus on obtaining early and clear biological changes associated with disease development, therapeutic efficacy, and drug-induced tissue changes. Proper selection of probes and careful study design are critical for maximizing the non-invasive assessment of in vivo biological changes, and applications of these critical elements are described.
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18
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Azizi M, Dianat-Moghadam H, Salehi R, Farshbaf M, Iyengar D, Sau S, Iyer AK, Valizadeh H, Mehrmohammadi M, Hamblin MR. Interactions Between Tumor Biology and Targeted Nanoplatforms for Imaging Applications. ADVANCED FUNCTIONAL MATERIALS 2020; 30:1910402. [PMID: 34093104 PMCID: PMC8174103 DOI: 10.1002/adfm.201910402] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2019] [Indexed: 05/04/2023]
Abstract
Although considerable efforts have been conducted to diagnose, improve, and treat cancer in the past few decades, existing therapeutic options are insufficient, as mortality and morbidity rates remain high. Perhaps the best hope for substantial improvement lies in early detection. Recent advances in nanotechnology are expected to increase the current understanding of tumor biology, and will allow nanomaterials to be used for targeting and imaging both in vitro and in vivo experimental models. Owing to their intrinsic physicochemical characteristics, nanostructures (NSs) are valuable tools that have received much attention in nanoimaging. Consequently, rationally designed NSs have been successfully employed in cancer imaging for targeting cancer-specific or cancer-associated molecules and pathways. This review categorizes imaging and targeting approaches according to cancer type, and also highlights some new safe approaches involving membrane-coated nanoparticles, tumor cell-derived extracellular vesicles, circulating tumor cells, cell-free DNAs, and cancer stem cells in the hope of developing more precise targeting and multifunctional nanotechnology-based imaging probes in the future.
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Affiliation(s)
- Mehdi Azizi
- Proteomics Research Centre, Tabriz University of Medical Sciences, Tabriz 5165665811, Iran
| | - Hassan Dianat-Moghadam
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz 5165665621, Iran
| | - Roya Salehi
- Department of Medical Nanotechnology, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Golgasht Street, Tabriz 516615731, Iran
| | - Masoud Farshbaf
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz 6581151656, Iran
| | - Disha Iyengar
- U-BiND Systems Laboratory, Department of Pharmaceutical Sciences, Wayne State University, Detroit, MI 48201, USA
| | - Samaresh Sau
- U-BiND Systems Laboratory, Department of Pharmaceutical Sciences, Wayne State University, Detroit, MI 48201, USA
| | - Arun K Iyer
- U-BiND Systems Laboratory, Department of Pharmaceutical Sciences, Wayne State University, Detroit, MI 48201, USA
| | - Hadi Valizadeh
- Department of Medical Nanotechnology, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Golgasht Street, Tabriz 516615731, Iran
| | | | - Michael R Hamblin
- Wellman Center for Photomedicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA
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19
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Liu CL, Zhang X, Liu J, Wang Y, Sukhova GK, Wojtkiewicz GR, Liu T, Tang R, Achilefu S, Nahrendorf M, Libby P, Guo J, Zhang JY, Shi GP. Na +-H + exchanger 1 determines atherosclerotic lesion acidification and promotes atherogenesis. Nat Commun 2019; 10:3978. [PMID: 31484936 PMCID: PMC6726618 DOI: 10.1038/s41467-019-11983-3] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2017] [Accepted: 08/15/2019] [Indexed: 01/25/2023] Open
Abstract
The pH in atherosclerotic lesions varies between individuals. IgE activates macrophage Na+-H+ exchanger (Nhe1) and induces extracellular acidification and cell apoptosis. Here, we show that the pH-sensitive pHrodo probe localizes the acidic regions in atherosclerotic lesions to macrophages, IgE, and cell apoptosis. In Apoe-/- mice, Nhe1-deficiency or anti-IgE antibody reduces atherosclerosis and blocks lesion acidification. Reduced atherosclerosis in Apoe-/- mice receiving bone marrow from Nhe1- or IgE receptor FcεR1-deficient mice, blunted foam cell formation and signaling in IgE-activated macrophages from Nhe1-deficient mice, immunocomplex formation of Nhe1 and FcεR1 in IgE-activated macrophages, and Nhe1-FcεR1 colocalization in atherosclerotic lesion macrophages support a role of IgE-mediated macrophage Nhe1 activation in atherosclerosis. Intravenous administration of a near-infrared fluorescent pH-sensitive probe LS662, followed by coregistered fluorescent molecular tomography-computed tomography imaging, identifies acidic regions in atherosclerotic lesions in live mice, ushering a non-invasive and radiation-free imaging approach to monitor atherosclerotic lesions in live subjects.
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Affiliation(s)
- Cong-Lin Liu
- Department of Cardiology, Institute of Clinical Medicine, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, 02115, USA
| | - Xian Zhang
- Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, 02115, USA
| | - Jing Liu
- Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, 02115, USA
| | - Yunzhe Wang
- Department of Cardiology, Institute of Clinical Medicine, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, 02115, USA
| | - Galina K Sukhova
- Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, 02115, USA
| | - Gregory R Wojtkiewicz
- Center for Systems Biology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, 02114, USA
| | - Tianxiao Liu
- Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, 02115, USA
| | - Rui Tang
- Mallinckrodt Institute of Radiology, Washington University School of Medicine, St. Louis, MO, 63110, USA
| | - Samuel Achilefu
- Mallinckrodt Institute of Radiology, Washington University School of Medicine, St. Louis, MO, 63110, USA
| | - Matthias Nahrendorf
- Center for Systems Biology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, 02114, USA
| | - Peter Libby
- Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, 02115, USA
| | - Junli Guo
- Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, 02115, USA.
- Key Laboratory of Emergency and Trauma of Ministry of Education, Institute of Cardiovascular Research of the First Affiliated Hospital, Hainan Medical University, 571199,, Haikou, China.
| | - Jin-Ying Zhang
- Department of Cardiology, Institute of Clinical Medicine, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.
| | - Guo-Ping Shi
- Department of Cardiology, Institute of Clinical Medicine, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.
- Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, 02115, USA.
- Key Laboratory of Emergency and Trauma of Ministry of Education, Institute of Cardiovascular Research of the First Affiliated Hospital, Hainan Medical University, 571199,, Haikou, China.
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20
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Nevozhay D, Weiger M, Friedl P, Sokolov KV. Spatiotemporally controlled nano-sized third harmonic generation agents. BIOMEDICAL OPTICS EXPRESS 2019; 10:3301-3316. [PMID: 31360600 PMCID: PMC6640828 DOI: 10.1364/boe.10.003301] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2019] [Revised: 06/05/2019] [Accepted: 06/05/2019] [Indexed: 05/09/2023]
Abstract
Here, we present a new class of third harmonic generation (THG) imaging probes that can be activated with precise spatiotemporal control using non-linear excitation. These probes consist of lipid-coated perfluorocarbon nanodroplets with embedded visible chromophores. The droplets undergo phase transition from liquid to gas upon heating mediated by two-photon absorption of NIR light by the embedded dyes. Resulting microbubbles provide a sharp, local refractive index mismatch, which makes an excellent source of THG signal. Potential applications of these probes include activatable THG agents for biological imaging and "on-demand" delivery of various compounds under THG monitoring.
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Affiliation(s)
- Dmitry Nevozhay
- Department of Imaging Physics, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, TX 77030, USA
- School of Biomedicine, Far Eastern Federal University, 8 Sukhanova Street, Vladivostok, 690950, Russia
- Equal contribution
| | - Michael Weiger
- Department of Genitourinary Medical Oncology, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, TX 77030, USA
- Equal contribution
| | - Peter Friedl
- Department of Genitourinary Medical Oncology, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, TX 77030, USA
- Department of Cell Biology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, Netherlands
- Cancer Genomics Centre, (CGC.nl), 3584 Utrecht, Netherlands
| | - Konstantin V. Sokolov
- Department of Imaging Physics, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, TX 77030, USA
- Department of Bioengineering, Rice University, 6100 Main St, Houston, TX 77005, USA
- Department of Biomedical Engineering, The University of Texas at Austin, 107 W Dean Keeton Street, Austin, TX 78712, USA
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21
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Hou JT, Ren WX, Li K, Seo J, Sharma A, Yu XQ, Kim JS. Fluorescent bioimaging of pH: from design to applications. Chem Soc Rev 2018; 46:2076-2090. [PMID: 28317979 DOI: 10.1039/c6cs00719h] [Citation(s) in RCA: 327] [Impact Index Per Article: 54.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Protons play crucial roles in many physiological and pathological processes, such as receptor-mediated signal transduction, ion transport, endocytosis, homeostasis, cell proliferation, and apoptosis. The urgent demand for pH imaging and measurement in biological systems has incited the development of fluorescent pH probes. Numerous fluorescent probes have been reported, but many lack the abilities needed for biological applications. Hence, the development of new pH probes with better biocompatibility, sensitivity, and site-specificity is still indispensable. This review highlights the recent trends in the development of fluorescent materials as essential tools for tracing pH variations in the biological processes of diverse living systems.
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Affiliation(s)
- Ji-Ting Hou
- Department of Chemistry, Korea University, Seoul 02841, Korea.
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22
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Mu H, Miki K, Takahashi Y, Teshima N, Oe M, Kojima K, Ohe K. pH Responsiveness of Near-infrared Fluorescent Cyanine Dyes Encapsulated in Self-assemblies Composed of Various Amphiphiles. CHEM LETT 2018. [DOI: 10.1246/cl.180402] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Huiying Mu
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Koji Miki
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Yuki Takahashi
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Naoto Teshima
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Masahiro Oe
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Kentaro Kojima
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Kouichi Ohe
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
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23
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Yue Y, Huo F, Lee S, Yin C, Yoon J. A review: the trend of progress about pH probes in cell application in recent years. Analyst 2018; 142:30-41. [PMID: 27757447 DOI: 10.1039/c6an01942k] [Citation(s) in RCA: 129] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Intracellular pH values are some of the most important factors that govern biological processes and the acid-base homeostasis in cells, body fluids and organs sustains the normal operations of the body. Subcellular organelles including the acidic lysosomes and the alkalescent mitochondria undergo various processes such as intracellular digestion, ATP production and apoptosis. Due to their precise imaging capabilities, fluorescent probes have attracted great attention for the illustration of pH modulated processes. Furthermore, based on the unique acidic extracellular environment of acidic lysosomes, fluorescent probes can specifically be activated in cancer cells or tumors. In this review, recently reported lysosome and mitochondria specific pH imaging probes as well as pH-activatable cancer cell-targetable probes have been discussed.
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Affiliation(s)
- Yongkang Yue
- Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education, Institute of Molecular Science, Key Laboratory of Materials for Energy Conversion and Storage of Shanxi Province, Shanxi University, Taiyuan 030006, China.
| | - Fangjun Huo
- Research Institute of Applied Chemistry, Shanxi University, Taiyuan, 030006, China
| | - Songyi Lee
- Department of Chemistry and Nano Science, Ewha Womans University, Seoul 120750, Korea.
| | - Caixia Yin
- Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education, Institute of Molecular Science, Key Laboratory of Materials for Energy Conversion and Storage of Shanxi Province, Shanxi University, Taiyuan 030006, China.
| | - Juyoung Yoon
- Department of Chemistry and Nano Science, Ewha Womans University, Seoul 120750, Korea.
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24
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Jo J, Lee CH, Kopelman R, Wang X. In vivo quantitative imaging of tumor pH by nanosonophore assisted multispectral photoacoustic imaging. Nat Commun 2017; 8:471. [PMID: 28883396 PMCID: PMC5589864 DOI: 10.1038/s41467-017-00598-1] [Citation(s) in RCA: 76] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2017] [Accepted: 07/12/2017] [Indexed: 02/04/2023] Open
Abstract
Changes of physiological pH are correlated with several pathologies, therefore the development of more effective medical pH imaging methods is of paramount importance. Here, we report on an in vivo pH mapping nanotechnology. This subsurface chemical imaging is based on tumor-targeted, pH sensing nanoprobes and multi-wavelength photoacoustic imaging (PAI). The nanotechnology consists of an optical pH indicator, SNARF-5F, 5-(and-6)-Carboxylic Acid, encapsulated into polyacrylamide nanoparticles with surface modification for tumor targeting. Facilitated by multi-wavelength PAI plus a spectral unmixing technique, the accuracy of pH measurement inside the biological environment is not susceptible to the background optical absorption of biomolecules, i.e., hemoglobins. As a result, both the pH levels and the hemodynamic properties across the entire tumor can be quantitatively evaluated with high sensitivity and high spatial resolution in in vivo cancer models. The imaging technology reported here holds the potential for both research on and clinical management of a variety of cancers. Background optical absorption of several biomolecules impedes an effective in vivo pH imaging in tumors. Here, the authors developed a visible light-based in vivo pH mapping method by coupling photoacoustic imaging and pH-responsive modified nanoparticles that selectively target tumor cells.
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Affiliation(s)
- Janggun Jo
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, Michigan, 48109, USA
| | - Chang H Lee
- Department of Chemistry, University of Michigan, Ann Arbor, Michigan, 48109, USA
| | - Raoul Kopelman
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, Michigan, 48109, USA. .,Department of Chemistry, University of Michigan, Ann Arbor, Michigan, 48109, USA.
| | - Xueding Wang
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, Michigan, 48109, USA. .,Department of Radiology, University of Michigan Medical School, Ann Arbor, Michigan, 48109, USA.
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25
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Miki K, Kojima K, Oride K, Harada H, Morinibu A, Ohe K. pH-Responsive near-infrared fluorescent cyanine dyes for molecular imaging based on pH sensing. Chem Commun (Camb) 2017. [DOI: 10.1039/c7cc03035e] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
pH-Responsive near-infrared cyanine dyes were synthesized and applied as imaging probes of acidic intracellular compartments of living cells.
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Affiliation(s)
- Koji Miki
- Department of Energy and Hydrocarbon Chemistry
- Graduate School of Engineering
- Kyoto University
- Kyoto 615-8510
- Japan
| | - Kentaro Kojima
- Department of Energy and Hydrocarbon Chemistry
- Graduate School of Engineering
- Kyoto University
- Kyoto 615-8510
- Japan
| | - Kazuaki Oride
- Department of Energy and Hydrocarbon Chemistry
- Graduate School of Engineering
- Kyoto University
- Kyoto 615-8510
- Japan
| | - Hiroshi Harada
- Laboratory of Cancer Cell Biology
- Radiation Biology Center
- Kyoto University
- Yoshida Konoe-cho
- Kyoto 606-8501
| | - Akiyo Morinibu
- Laboratory of Cancer Cell Biology
- Radiation Biology Center
- Kyoto University
- Yoshida Konoe-cho
- Kyoto 606-8501
| | - Kouichi Ohe
- Department of Energy and Hydrocarbon Chemistry
- Graduate School of Engineering
- Kyoto University
- Kyoto 615-8510
- Japan
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26
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Koo H, Yamada KM. Dynamic cell-matrix interactions modulate microbial biofilm and tissue 3D microenvironments. Curr Opin Cell Biol 2016; 42:102-112. [PMID: 27257751 PMCID: PMC5064909 DOI: 10.1016/j.ceb.2016.05.005] [Citation(s) in RCA: 70] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2016] [Revised: 05/07/2016] [Accepted: 05/10/2016] [Indexed: 01/22/2023]
Abstract
Microbial biofilms and most eukaryotic tissues consist of cells embedded in a three-dimensional extracellular matrix. This matrix serves as a scaffold for cell adhesion and a dynamic milieu that provides varying chemical and physical signals to the cells. Besides a vast array of specific molecular components, an extracellular matrix can provide locally heterogeneous microenvironments differing in porosity/diffusion, stiffness, pH, oxygen and metabolites or nutrient levels. Mechanisms of matrix formation, mechanosensing, matrix remodeling, and modulation of cell-cell or cell-matrix interactions and dispersal are being revealed. This perspective article aims to identify such concepts from the fields of biofilm or eukaryotic matrix biology relevant to the other field to help stimulate new questions, approaches, and insights.
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Affiliation(s)
- Hyun Koo
- Biofilm Research Labs, Levy Center for Oral Health, Department of Orthodontics and Divisions of Pediatric Dentistry & Community Oral Health, School of Dental Medicine, University of Pennsylvania, PA 19104, USA.
| | - Kenneth M Yamada
- Laboratory of Cell and Developmental Biology, Cell Biology Section, National Institute of Dental and Craniofacial Research, National Institutes of Health, Bethesda, MD 20892, USA
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