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Wen Y, Wang J, Zheng W, Zhu J, Song X, Chen T, Zhang M, Huang Z, Li J. A supramolecular colloidal system based on folate-conjugated β-cyclodextrin polymer and indocyanine green for enhanced tumor-targeted cell imaging in 2D culture and 3D tumor spheroids. J Colloid Interface Sci 2024; 667:259-268. [PMID: 38636227 DOI: 10.1016/j.jcis.2024.04.072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Revised: 04/04/2024] [Accepted: 04/10/2024] [Indexed: 04/20/2024]
Abstract
Indocyanine green (ICG) is an FDA-approved medical diagnostic agent that is widely used as a near-infrared (NIR) fluorescent imaging molecular probe. However, ICG tends to aggregate to form dimers or H-aggregates in water and lacks physical and optical stability, which greatly decreases its absorbance and fluorescence intensity in various applications. Additionally, ICG has no tissue- or tumor-targeting properties, and its structure is not easy to modify, which has further limited its application in cancer diagnosis. In this study, we addressed these challenges by developing a supramolecular colloidal carrier system that targets tumor cells. To this end, we synthesized a water-soluble β-cyclodextrin (β-CD) polymer conjugated with folate (FA), denoted PCD-FA, which is capable of forming inclusion complexes with ICG in water through host-guest interactions between the β-CD moieties and ICG molecules. The inclusion complexes formed by PCD-FA and ICG, called ICG@PCD-FA, dispersed stably in solution as colloidal nanoparticles, greatly improving the physical and optical properties of ICG by preventing ICG dimer formation, where ICG appeared as monomers and even J-aggregates. This resulted in stronger and more stable absorption at a longer wavelength of 900 nm, which may allow for deeper tissue penetration and imaging with reduced interference from biological tissues' autofluorescence. Moreover, ICG@PCD-FA showed a targeting effect on folate receptor-positive (FR+) tumor cells, which specifically highlighted FR+ cells via NIR endoscopic imaging. Notably, ICG@PCD-FA further improved permeation and accumulation in FR+ 3D tumor spheroids. Therefore, this ICG@PCD-FA supramolecular colloidal system may have a great potential for use in tumor NIR imaging and diagnostic applications.
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Affiliation(s)
- Yuting Wen
- Department of Biomedical Engineering, National University of Singapore, 15 Kent Ridge Crescent, Singapore 119276, Singapore; National University of Singapore (Suzhou) Research Institute, Suzhou, Jiangsu 215000, China; National University of Singapore (Chongqing) Research Institute, Yubei District, Chongqing 401120, China
| | - Jianfeng Wang
- Department of Biomedical Engineering, National University of Singapore, 15 Kent Ridge Crescent, Singapore 119276, Singapore
| | - Wei Zheng
- Department of Biomedical Engineering, National University of Singapore, 15 Kent Ridge Crescent, Singapore 119276, Singapore
| | - Jingling Zhu
- Department of Biomedical Engineering, National University of Singapore, 15 Kent Ridge Crescent, Singapore 119276, Singapore; NUS Environmental Research Institute (NERI), National University of Singapore, 5A Engineering Drive 1, Singapore 117411, Singapore
| | - Xia Song
- Department of Biomedical Engineering, National University of Singapore, 15 Kent Ridge Crescent, Singapore 119276, Singapore
| | - Taili Chen
- Department of Biomedical Engineering, National University of Singapore, 15 Kent Ridge Crescent, Singapore 119276, Singapore
| | - Miao Zhang
- Department of Biomedical Engineering, National University of Singapore, 15 Kent Ridge Crescent, Singapore 119276, Singapore
| | - Zhiwei Huang
- Department of Biomedical Engineering, National University of Singapore, 15 Kent Ridge Crescent, Singapore 119276, Singapore; NUS Environmental Research Institute (NERI), National University of Singapore, 5A Engineering Drive 1, Singapore 117411, Singapore.
| | - Jun Li
- Department of Biomedical Engineering, National University of Singapore, 15 Kent Ridge Crescent, Singapore 119276, Singapore; National University of Singapore (Suzhou) Research Institute, Suzhou, Jiangsu 215000, China; National University of Singapore (Chongqing) Research Institute, Yubei District, Chongqing 401120, China; NUS Environmental Research Institute (NERI), National University of Singapore, 5A Engineering Drive 1, Singapore 117411, Singapore.
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Liu F, Wei R, Yin J, Shen M, Wu Y, Guo W, Sun D. Host-guest interactions of indocyanine green with β-cyclodextrin permit real-time characterization of the rat lymphatic system. JVS Vasc Sci 2022; 3:211-218. [PMID: 35574516 PMCID: PMC9092501 DOI: 10.1016/j.jvssci.2022.02.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Accepted: 02/15/2022] [Indexed: 01/04/2023] Open
Abstract
Objective Fluorescence contrast technology using indocyanine green (ICG) could be useful for the rapid, dynamic, and objective assessment of blood vessels and the surrounding tissues when combined with near-infrared (NIR) imaging. Although ICG is a clinically available NIR fluorescence imaging probe, it can easily aggregate and is, thus, unstable. In the present study, we examined the efficacy of a host–guest ICG–β-cyclodextrin (CD) complex, which is used in pharmaceutics to improve the water solubility, stability, and bioavailability of hydrophobic molecules, for NIR imaging after hind footpad administration in a rat model. Methods To verify the performance of the ICG-β-CD complex with the host–guest self-assembly method in vivo, we performed simultaneous small animal (IVIS Spectrum system; PerkinElmer, Waltham, MA) and clinical (DIGI-MIH-001 near-infrared fluorescence imaging system; Beijing Digital Precision Medical Technology Co, Ltd, Beijing, China) imaging and evaluated the fluorescent properties of the ICG-β-CD complex in the hind footpad model of Sprague-Dawley male rats. Results We successfully prepared the ICG-β-CD complex. Compared with ICG, in vivo experiments showed that this complex had reduced absorbance at 710 nm and increased absorbance at 780 nm, indicating that it could prevent the dimeric aggregation of ICG, and a significantly higher fluorescence intensity at 730 nm excitation. After injection of 1.25 mg/mL of ICG or ICG-β-CD complex solutions into the rat hind footpad, fluorescent NIR lymphatic images were observed with both imaging systems. During the 12-hour observation period, the signal background ratio of ICG-β-CD showed a greater acute increase and a higher signal background ratio compared with ICG. The signal background ratio of ICG-β-CD was 125 to 100 from 260 to 540 minutes. These in vivo data suggest that ICG-β-CD has greater diffusion from the injection site and faster transport to the lymphatic system compared with ICG. Conclusions ICG-β-CD showed faster lymphatic transport than ICG, allowing for more rapid lymphatic NIR imaging. Thus, the ICG-β-CD complex might be a promising fluorescent agent for clinical lymphatic NIR imaging. The lymphatic system plays a crucial role in maintaining tissue fluid homeostasis by draining protein-rich fluid from the perivascular interstitial spaces back into the circulation. The lymphatic system also plays a variety of roles in the progression of some peripheral vascular diseases, including venous leg ulcers, atherosclerotic vascular disease, and severe foot infection. Understanding the dynamic changes of the lymphatic fluid is indispensable for a variety of clinical situations and research areas. We investigated the potential feasibility of the indocyanine green–β-cyclodextrin complex in clinical applications using clinically available near-infrared fluorescence imaging equipment.
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Affiliation(s)
- Feng Liu
- Department of Vascular and Endovascular Surgery, Chinese PLA General Hospital, Beijing, China
- Department of Vascular and Endovascular Surgery, The First Hospital of Hebei Medical University, Shijiazhuang, China
| | - Ren Wei
- Department of Vascular and Endovascular Surgery, Chinese PLA General Hospital, Beijing, China
| | - Jianhan Yin
- Department of Vascular and Endovascular Surgery, Chinese PLA General Hospital, Beijing, China
- School of Medicine, Nankai University, Tianjin, China
| | - Ming Shen
- Department of Cardiology, The First Hospital of Hebei Medical University, Shijiazhuang, China
| | - Yuanbin Wu
- Department of Cardiology, Chinese PLA General Hospital, Beijing, China
| | - Wei Guo
- Department of Vascular and Endovascular Surgery, Chinese PLA General Hospital, Beijing, China
| | - Di Sun
- Department of Chemistry, Renmin University of China, Beijing, China
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology of China, Beijing, China
- Correspondence: Di Sun, PhD, CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology of China, Beijing 100190, China
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Li D, Smith BD. Deuterated Indocyanine Green (ICG) with Extended Aqueous Storage Shelf-Life: Chemical and Clinical Implications. Chemistry 2021; 27:14535-14542. [PMID: 34403531 PMCID: PMC8530945 DOI: 10.1002/chem.202102816] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Indexed: 12/17/2022]
Abstract
Indocyanine Green (ICG) is a clinically approved near-infrared fluorescent dye that is used extensively for various imaging and diagnostic procedures. One drawback with ICG is its instability in water, which means that reconstituted clinical doses have to be used very shortly after preparation. Two deuterated versions of ICG were prepared with deuterium atoms on the heptamethine chain, and the spectral, physiochemical, and photostability properties were quantified. A notable mechanistic finding is that self-aggregation of ICG in water strongly favors dye degradation by a photochemical oxidative dimerization reaction that gives a nonfluorescent product. Storage stability studies showed that replacement of C-H with C-D decreased the dimerization rate constant by a factor of 3.1, and it is likely that many medical and preclinical procedures will benefit from the longer shelf-lives of these two deuterated ICG dyes. The discovery that ICG self-aggregation promotes photoinduced electron transfer can be exploited as a new paradigm for next-generation photodynamic therapies.
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Affiliation(s)
- Dong‐Hao Li
- Department of Chemistry & BiochemistryUniversity of Notre Dame251 Nieuwland Science HallNotre DameIN, 46545USA
| | - Bradley D. Smith
- Department of Chemistry & BiochemistryUniversity of Notre Dame251 Nieuwland Science HallNotre DameIN, 46545USA
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Lisovskaya A, Carmichael I, Harriman A. Pulse Radiolysis Investigation of Radicals Derived from Water-Soluble Cyanine Dyes: Implications for Super-resolution Microscopy. J Phys Chem A 2021; 125:5779-5793. [PMID: 34165985 DOI: 10.1021/acs.jpca.1c03776] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Light-induced blinking, an inherent feature of many forms of super-resolution microscopy, has been linked to transient reduction of the fluorescent cyanine dye used as an imaging agent. There is, however, only scant literature information related to one-electron reduced cyanine dyes, especially in an aqueous environment. Here, we examine a small series of cyanine dyes, possessing disparate π-conjugation lengths, under selective reducing or oxidizing conditions. The experiment allows recording of both differential absorption spectra and decay kinetics of the resultant one-electron reduced or oxidized transient species in water. Relative to the ground state, absorption transitions for the various radicals are weak and somewhat broadened but do allow correlation with the π-conjugation length. In all cases, absorption maxima lie to the blue of the main ground-state transition. Under anaerobic conditions, the transient species decay on the microsecond to millisecond time scale, with the mean lifetime depending on molecular structure, radiation dose, and dye concentration. The experimental absorption spectra recorded for the one-electron reduced radicals and the presumed dimer cation radical compare well to spectra obtained from time-dependent density functional theory calculations. The results allow conclusions to be drawn regarding the plausibility of the reduced species being responsible for light-induced blinking in direct stochastic optical reconstruction microscopy.
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Affiliation(s)
- Alexandra Lisovskaya
- Notre Dame Radiation Laboratory, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Ian Carmichael
- Notre Dame Radiation Laboratory, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Anthony Harriman
- Molecular Photonics Laboratory, Bedson Building, Newcastle University, Newcastle upon Tyne NE1 7RU, United Kingdom
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Jo G, Lee BY, Kim EJ, Park MH, Hyun H. Indocyanine Green and Methyl-β-Cyclodextrin Complex for Enhanced Photothermal Cancer Therapy. Biomedicines 2020; 8:E476. [PMID: 33167365 PMCID: PMC7694321 DOI: 10.3390/biomedicines8110476] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Revised: 11/04/2020] [Accepted: 11/04/2020] [Indexed: 12/12/2022] Open
Abstract
A feasible and biocompatible supramolecular complex self-assembled from indocyanine green (ICG) and methyl-β-cyclodextrin (Mβ-CD) was developed for targeted cancer imaging, which enhanced fluorescence-guided photothermal cancer therapy. This study confirmed that the formation of an inclusion complex of the heterocyclic ICG moiety and Mβ-CD inner cavity could result in improved tumor targetability compared with free ICG. The ICG-CD complex could be used as a bifunctional phototherapeutic agent for targeted cancer phototherapy due to the high tumor targetability of the Mβ-CD moiety and effective photothermal performance of the near-infrared (NIR) ICG moiety. Upon NIR laser irradiation, the photothermal effect exerted by the ICG-CD complex significantly enhanced the temperature at the tumor site by 56.2 °C within 5 min. Targeting HT-29 tumors using the ICG-CD complex resulted in an apparent reduction in tumor volumes over the 9 days after photothermal treatment. Moreover, no tumor recurrence or body weight loss were observed after administering a single dose of ICG-CD complex with NIR laser irradiation. Therefore, the administration of the biocompatible ICG-CD complex in combination with NIR laser treatment can be safely explored as a potential strategy for future clinical applications.
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Affiliation(s)
- Gayoung Jo
- Department of Biomedical Sciences, Chonnam National University Medical School, Hwasun 58128, Korea; (G.J.); (B.Y.L.)
| | - Bo Young Lee
- Department of Biomedical Sciences, Chonnam National University Medical School, Hwasun 58128, Korea; (G.J.); (B.Y.L.)
| | - Eun Jeong Kim
- Department of Surgery, Chonnam National University Medical School, Hwasun 58128, Korea;
| | - Min Ho Park
- Department of Surgery, Chonnam National University Medical School, Hwasun 58128, Korea;
| | - Hoon Hyun
- Department of Biomedical Sciences, Chonnam National University Medical School, Hwasun 58128, Korea; (G.J.); (B.Y.L.)
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Ahoulou EO, Drinkard KK, Basnet K, St. Lorenz A, Taratula O, Henary M, Grant KB. DNA Photocleavage in the Near-Infrared Wavelength Range by 2-Quinolinium Dicarbocyanine Dyes. Molecules 2020; 25:molecules25122926. [PMID: 32630496 PMCID: PMC7355653 DOI: 10.3390/molecules25122926] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2020] [Revised: 06/19/2020] [Accepted: 06/22/2020] [Indexed: 12/21/2022] Open
Abstract
Here, we report the syntheses of two pentamethine cyanine dyes containing quinolinium rings and substituted with either hydrogen (3) or bromine (4) at the meso carbon. The electron withdrawing bromine atom stabilizes dye 4 in aqueous buffer, allowing complex formation to occur between the dye and double-helical DNA. UV–visible, CD, and fluorescence spectra recorded at low DNA concentrations suggest that dye 4 initially binds to the DNA as a high-order aggregate. As the ratio of DNA to dye is increased, the aggregate is converted to monomeric and other low-order dye forms that interact with DNA in a non-intercalative fashion. The brominated dye 4 is relatively unreactive in the dark, but, under 707–759 nm illumination, generates hydroxyl radicals that cleave DNA in high yield (pH 7.0, 22 °C). Dye 4 is also taken up by ES2 ovarian carcinoma cells, where it is non-toxic under dark conditions. Upon irradiation of the ES2 cells at 694 nm, the brominated cyanine reduces cell viability from 100 ± 10% to 14 ± 1%. Our results suggest that 2-quinolinium-based carbocyanine dyes equipped with stabilizing electron withdrawing groups may have the potential to serve as sensitizing agents in long-wavelength phototherapeutic applications.
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Affiliation(s)
- Effibe O. Ahoulou
- Department of Chemistry, Georgia State University, Atlanta, GA 30303, USA; (E.O.A.); (K.K.D.); (K.B.)
| | - Kaitlyn K. Drinkard
- Department of Chemistry, Georgia State University, Atlanta, GA 30303, USA; (E.O.A.); (K.K.D.); (K.B.)
| | - Kanchan Basnet
- Department of Chemistry, Georgia State University, Atlanta, GA 30303, USA; (E.O.A.); (K.K.D.); (K.B.)
| | - Anna St. Lorenz
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, Portland, OR 97201, USA; (A.S.L.); (O.T.)
| | - Oleh Taratula
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, Portland, OR 97201, USA; (A.S.L.); (O.T.)
| | - Maged Henary
- Department of Chemistry, Georgia State University, Atlanta, GA 30303, USA; (E.O.A.); (K.K.D.); (K.B.)
- Center for Diagnostics and Therapeutics, Georgia State University, Atlanta, GA 30303, USA
- Correspondence: (M.H.); (K.B.G.); Tel.: +1-404-413-5566 (M.H.); +1-404-413-5522 (K.B.G.)
| | - Kathryn B. Grant
- Department of Chemistry, Georgia State University, Atlanta, GA 30303, USA; (E.O.A.); (K.K.D.); (K.B.)
- Correspondence: (M.H.); (K.B.G.); Tel.: +1-404-413-5566 (M.H.); +1-404-413-5522 (K.B.G.)
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Devatha G, Roy P, Rao A, Roy S, Pillai PP. Multicolor Luminescent Patterning via Photoregulation of Electron and Energy Transfer Processes in Quantum Dots. J Phys Chem Lett 2020; 11:4099-4106. [PMID: 32357301 DOI: 10.1021/acs.jpclett.0c01121] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Ability to create high-contrast multicolor luminescent patterns is essential to realize the full potential of quantum dots (QDs) in display technologies. The idea of using a nonemissive state is adopted in the present work to enhance the color-contrast of QD-based photopatterns. This is achieved at a multicolor level by the photoregulation of electron and energy transfer processes in a single QD nanohybrid film, composed of one QD donor and two dye acceptors. The dominance of photoinduced electron transfer over the energy transfer process generates a nonluminescent QD nanohybrid film, which provides the black background for multicolor patterning. The superior photostability of QDs over dyes is used for the photoregulation of electron and energy transfer processes. Selective photodegradation of electron acceptor dye triggered the onset of the energy transfer process, thereby imparting a luminescent color to the QD nanohybrid film. Further, a controlled photoregulation of energy transfer process paved the way for multicolor patterning.
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Affiliation(s)
- Gayathri Devatha
- Department of Chemistry and Centre for Energy Sciences, Indian Institute of Science Education and Research (IISER), Dr. Homi Bhabha Road, Pashan, Pune 411 008, India
| | - Pradyut Roy
- Department of Chemistry and Centre for Energy Sciences, Indian Institute of Science Education and Research (IISER), Dr. Homi Bhabha Road, Pashan, Pune 411 008, India
| | - Anish Rao
- Department of Chemistry and Centre for Energy Sciences, Indian Institute of Science Education and Research (IISER), Dr. Homi Bhabha Road, Pashan, Pune 411 008, India
| | - Soumendu Roy
- Department of Chemistry and Centre for Energy Sciences, Indian Institute of Science Education and Research (IISER), Dr. Homi Bhabha Road, Pashan, Pune 411 008, India
| | - Pramod P Pillai
- Department of Chemistry and Centre for Energy Sciences, Indian Institute of Science Education and Research (IISER), Dr. Homi Bhabha Road, Pashan, Pune 411 008, India
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Basnet K, Fatemipouya T, St Lorenz A, Nguyen M, Taratula O, Henary M, Grant KB. Single photon DNA photocleavage at 830 nm by quinoline dicarbocyanine dyes. Chem Commun (Camb) 2019; 55:12667-12670. [PMID: 31584046 PMCID: PMC6953408 DOI: 10.1039/c9cc04751d] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
We have synthesized symmetrical carbocyanine dyes in which two 4-quinolinium rings are joined by a pentamethine bridge that is meso-substituted with H or Cl. Irradiation of the halogenated dye at 830 nm produces hydroxyl radicals that generate DNA direct strand breaks. This represents the first reported example of DNA photocleavage upon single photon excitation of a chromophore at wavelengths above 800 nm.
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Affiliation(s)
- Kanchan Basnet
- Department of Chemistry, Georgia State University, Atlanta, GA 30303, USA.
| | | | - Anna St Lorenz
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, Portland, OR 97201, USA
| | - Mindy Nguyen
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, Portland, OR 97201, USA
| | - Oleh Taratula
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, Portland, OR 97201, USA
| | - Maged Henary
- Department of Chemistry, Georgia State University, Atlanta, GA 30303, USA. and Center for Diagnostics and Therapeutics, Atlanta, GA 30303, USA
| | - Kathryn B Grant
- Department of Chemistry, Georgia State University, Atlanta, GA 30303, USA.
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Combination of Near Infrared Light-Activated Photodynamic Therapy Mediated by Indocyanine Green with Etoposide to Treat Non-Small-Cell Lung Cancer. Cancers (Basel) 2017; 9:cancers9060063. [PMID: 28587258 PMCID: PMC5483882 DOI: 10.3390/cancers9060063] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2017] [Accepted: 06/01/2017] [Indexed: 11/17/2022] Open
Abstract
Indocyanine green (ICG) has been reported as a potential near-infrared (NIR) photosensitizer for photodynamic therapy (PDT) of cancer. However the application of ICG-mediated PDT is both intrinsically and physiologically limited. Here we report a combination of ICG-PDT with a chemotherapy drug etoposide (VP-16), aiming to enhance the anticancer efficacy, to circumvent limitations of PDT using ICG, and to reduce side effects of VP-16. We found in controlled in vitro cell-based assays that this combination is effective in killing non-small-cell lung cancer cells (NSCLC, A549 cell line). We also found that the combination of ICG-PDT and VP-16 exhibits strong synergy in killing non-small-cell lung cancer cells partially through inducing more DNA double-strand breaks (DSBs), while it has a much weaker synergy in killing human normal cells (GM05757). Furthermore, by studying the treatment sequence dependence and the cytotoxicity of laser-irradiated mixtures of ICG and VP-16, we found that the observed synergy involves direct/indirect reactions between ICG and VP-16. We further propose that there exists an electron transfer reaction between ICG and VP-16 under irradiation. This study therefore shows the anticancer efficacy of ICG-PDT combined with VP-16. These findings suggest that ICG-mediated PDT may be applied in combination with the chemotherapy drug VP-16 to treat some cancers, especially the non-small-cell lung cancer.
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Suzuki T, Pérez-Sánchez H, P. Cerón-Carrasco J, Tamaoki H, Ishigaki Y, Katoono R, Fukushima T. Stereoselective Encapsulation for a Triarylmethylium o,o-Dimer by Natural γ-Cyclodextrin: Origin of Chiral Recognition for the Axially Chiral Dicationic Guest. HETEROCYCLES 2017. [DOI: 10.3987/com-17-13674] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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Wu H, Wang H, Liao H, Lv Y, Song X, Ma X, Tan M. Multifunctional Nanostructures for Tumor-Targeted Molecular Imaging and Photodynamic Therapy. Adv Healthc Mater 2016; 5:311-8. [PMID: 26626703 DOI: 10.1002/adhm.201500668] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2015] [Revised: 10/04/2015] [Indexed: 01/26/2023]
Abstract
A multifunctional ICG-FA-PPD nanostructure is constructed by a facile self-assembly method through the negatively charged indocyanine green (ICG)- and positively charged folic acid-modified PEI-PEG-gadoteric acid (FA-PPD). The resulting ICG-FA-PPD is not only able to be used for targeting tumors, magnetic resonance imaging (MRI), and near-infrared imaging, but, more importantly, it enables photodynamic therapy for tumor.
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Affiliation(s)
- Hao Wu
- Division of Biotechnology; Dalian Institute of Chemical Physics; Chinese Academy of Sciences; Dalian 116023 China
- University of the Chinese Academy of Sciences; Beijing 100049 China
| | - Huihui Wang
- Division of Biotechnology; Dalian Institute of Chemical Physics; Chinese Academy of Sciences; Dalian 116023 China
- University of the Chinese Academy of Sciences; Beijing 100049 China
| | - Han Liao
- Division of Biotechnology; Dalian Institute of Chemical Physics; Chinese Academy of Sciences; Dalian 116023 China
- University of the Chinese Academy of Sciences; Beijing 100049 China
| | - Yan Lv
- Division of Biotechnology; Dalian Institute of Chemical Physics; Chinese Academy of Sciences; Dalian 116023 China
- University of the Chinese Academy of Sciences; Beijing 100049 China
| | - Xiaojie Song
- Division of Biotechnology; Dalian Institute of Chemical Physics; Chinese Academy of Sciences; Dalian 116023 China
- University of the Chinese Academy of Sciences; Beijing 100049 China
| | - Xiaojun Ma
- Division of Biotechnology; Dalian Institute of Chemical Physics; Chinese Academy of Sciences; Dalian 116023 China
| | - Mingqian Tan
- Division of Biotechnology; Dalian Institute of Chemical Physics; Chinese Academy of Sciences; Dalian 116023 China
- National Engineering Research Center of Seafood; Liaoning Province Key Laboratory of Seafood Science and Technology; School of Food Science and Technology; Dalian Polytechnic University; Dalian 116034 China
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DeDora DJ, Suhrland C, Goenka S, Mullick Chowdhury S, Lalwani G, Mujica-Parodi LR, Sitharaman B. Sulfobutyl ether β-cyclodextrin (Captisol®) and methyl β-cyclodextrin enhance and stabilize fluorescence of aqueous indocyanine green. J Biomed Mater Res B Appl Biomater 2015; 104:1457-64. [DOI: 10.1002/jbm.b.33496] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2014] [Revised: 06/18/2015] [Accepted: 07/02/2015] [Indexed: 01/07/2023]
Affiliation(s)
- Daniel J. DeDora
- Department of Biomedical Engineering; Stony Brook University; Stony Brook New York 11794-5281
| | - Cassandra Suhrland
- Department of Biomedical Engineering; Stony Brook University; Stony Brook New York 11794-5281
| | - Shilpi Goenka
- Department of Biomedical Engineering; Stony Brook University; Stony Brook New York 11794-5281
| | - Sayan Mullick Chowdhury
- Department of Biochemistry and Cellular Biology; Stony Brook University; Stony Brook New York 11794-5281
| | - Gaurav Lalwani
- Department of Biomedical Engineering; Stony Brook University; Stony Brook New York 11794-5281
| | | | - Balaji Sitharaman
- Department of Biomedical Engineering; Stony Brook University; Stony Brook New York 11794-5281
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Gromov SP, Fomina MV, Nikiforov AS, Vedernikov AI, Kuz'mina LG, Howard JA. Synthesis of symmetrical cyanine dyes with two N-ammonioalkyl groups. Tetrahedron 2013. [DOI: 10.1016/j.tet.2013.05.015] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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14
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Suzuki T, Tamaoki H, Wada K, Katoono R, Nehira T, Kawai H, Fujiwara K. Induced preference for axial chirality in a triarylmethylium o,o-dimer upon complexation with natural γ-cyclodextrin: strong ECD signaling and fixation of supramolecular chirality to molecular chirality. Chem Commun (Camb) 2012; 48:2812-4. [DOI: 10.1039/c2cc17475h] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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