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Kumari P, Arora S, Pan Y, Ahmed I, Kumar S, Parshad B. Tailoring Indocyanine Green J-Aggregates for Imaging, Cancer Phototherapy, and Drug Delivery: A Review. ACS APPLIED BIO MATERIALS 2024; 7:5121-5135. [PMID: 39039943 DOI: 10.1021/acsabm.4c00651] [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] [Indexed: 07/24/2024]
Abstract
Indocyanine green J-aggregates (ICG-Jagg) have emerged as a significant subject of interest in biomedical applications due to their unique optical properties, tunable size, and excellent biocompatibility. This comprehensive review aims to provide an in-depth exploration of ICG-Jagg, with a focus on elucidating the diverse facets of their preparation and the factors that influence the preparation process. Additionally, the review discusses their applications in biomedical diagnostics, such as imaging and contrast agents, as well as their utilization in drug delivery and various phototherapeutic interventions.
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Affiliation(s)
- Pooja Kumari
- Department of Chemistry, Deenbandhu Chhoturam University of Science and Technology, Sonipat 131039, Murthal, India
| | - Smriti Arora
- Institut für Chemie und Biochemie Organische Chemie, Freie Universität Berlin, Takustrasse 3, Berlin 14195, Germany
| | - Yuanwei Pan
- Institute of Biomedical Health Technology and Engineering, Shenzhen Bay Laboratory, Shenzhen 518132, China
| | - Ishtiaq Ahmed
- Department of Chemical Engineering and Biotechnology, University of Cambridge, Cambridge CB3 0AS, U.K
| | - Sumit Kumar
- Department of Chemistry, Deenbandhu Chhoturam University of Science and Technology, Sonipat 131039, Murthal, India
| | - Badri Parshad
- Wellman Center for Photomedicine, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts 02129, United States
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Alotaibi H, Hatahet T, Al-Jamal WT. Indocyanine green J-aggregate (IJA) theranostics: Challenges and opportunities. Int J Pharm 2024; 661:124456. [PMID: 38986962 DOI: 10.1016/j.ijpharm.2024.124456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2024] [Revised: 07/06/2024] [Accepted: 07/08/2024] [Indexed: 07/12/2024]
Abstract
Indocyanine green is an FDA-approved fluorescent imaging dye used for determining cardiac output, hepatic function, liver blood flow, and retinal perfusion. It has been investigated preclinically in photoacoustic imaging and photothermal therapy (PTT); however, ICG photodegradation limits its biomedical applications. An aggregated form of ICG, known as J-aggregate (IJA), exhibits superior photoacoustic signals and thermal stability than the monomeric ICG. Nevertheless, IJA still suffers from low stability in the biological milieu, and short in vivo blood circulation. To address these limitations, a range of nanocarriers have been developed to enhance IJA stability and performance. This review focuses on IJA potentials and limitations, besides the recent development of IJA-loaded nanocarriers, particularly for cancer imaging and therapy.
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Affiliation(s)
- Hamoud Alotaibi
- School of Pharmacy, Queen's University Belfast, Belfast BT9 7BL, United Kingdom; Department of Pharmaceutics, College of Pharmacy, Northern Border University, Arar 91431, Saudi Arabia
| | - Taher Hatahet
- School of Pharmacy, Queen's University Belfast, Belfast BT9 7BL, United Kingdom; China Medical University and Queen's University Joint College, Shenyang, People's Republic of China
| | - Wafa' T Al-Jamal
- School of Pharmacy, Queen's University Belfast, Belfast BT9 7BL, United Kingdom.
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Zhang H, Ai Y, Zhang X, Deng F, Jiang S, Xie S, Peng M, Chen W, Hu J, Deng S, Zhang L. Visualization of Blood-Brain Barrier Disruption in Septic Mice with the New Method Based on in Vivo Imaging Technology. Neurocrit Care 2024:10.1007/s12028-024-02018-x. [PMID: 38982003 DOI: 10.1007/s12028-024-02018-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2024] [Accepted: 05/16/2024] [Indexed: 07/11/2024]
Abstract
BACKGROUND Dynamic monitoring of the blood-brain barrier (BBB) functional status in septic mice can help to explore the pathological mechanisms. Therefore, we proposed a new method for monitoring BBB permeability and applied it to the detection of sepsis models. METHODS The new method involves the construction of an optical cranial window and in vivo imaging. We performed dynamic monitoring of BBB permeability and cerebral blood flow (CBF) in cecal ligation puncture (CLP) and endotoxemia (lipopolysaccharide [LPS]) mice. RESULTS The sensitivity and accuracy of this method were higher than those of Evans blue evaluation. The increase of BBB permeability in the group of CLP mice was relatively mild and correlated with overall survival, and the damage was irreversible. Contrarily, BBB damage in the LPS group was more acute and severe, unrelated to overall survival, but recoverable. The CBF decreased significantly in both model mouse groups 24 h after modeling, but only the CBF proportion decrease in the LPS group was significantly correlated with an increase in BBB permeability. Within 24 h after both models were established, the decrease in blood flow in the digestive organs occurred earlier than in the brain and kidneys, and the decrease in small intestine blood flow in the LPS group progressed faster. CONCLUSIONS We have successfully demonstrated the feasibility of our novel method to detect BBB permeability in mice. Our results revealed a significant difference in the BBB permeability change trend between the CLP and LPS model mice when survival curves were consistent. Notably, the CLP-model mice demonstrated a closer resemblance to clinical patients. Our findings suggest that early-stage brain tissue hypoperfusion has a greater impact on BBB function damage in endotoxemia mice, which is related to the faster progression of blood flow redistribution.
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Affiliation(s)
- Haisong Zhang
- Department of Critical Care Medicine, Xiangya Hospital, Central South University, Changsha, 410008, China
| | - Yuhang Ai
- Department of Critical Care Medicine, Xiangya Hospital, Central South University, Changsha, 410008, China
| | - Xiaolei Zhang
- Department of Critical Care Medicine, Xiangya Hospital, Central South University, Changsha, 410008, China
| | - Fuxing Deng
- Department of Critical Care Medicine, Xiangya Hospital, Central South University, Changsha, 410008, China
| | - Shiwei Jiang
- Department of Critical Care Medicine, Xiangya Hospital, Central South University, Changsha, 410008, China
| | - Shucai Xie
- Department of Critical Care Medicine, Xiangya Hospital, Central South University, Changsha, 410008, China
| | - Milin Peng
- Department of Critical Care Medicine, Xiangya Hospital, Central South University, Changsha, 410008, China
| | - Wei Chen
- Department of Critical Care Medicine, Xiangya Hospital, Central South University, Changsha, 410008, China
| | - Jiyun Hu
- Department of Critical Care Medicine, Xiangya Hospital, Central South University, Changsha, 410008, China
| | - Songyun Deng
- Department of Critical Care Medicine, Xiangya Hospital, Central South University, Changsha, 410008, China
| | - Lina Zhang
- Department of Critical Care Medicine, Xiangya Hospital, Central South University, Changsha, 410008, China.
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Kawelah MR, Han S, Atila Dincer C, Jeon J, Brisola J, Hussain AF, Jeevarathinam AS, Bouchard R, Marras AE, Truskett TM, Sokolov KV, Johnston KP. Antibody-Conjugated Polymersomes with Encapsulated Indocyanine Green J-Aggregates and High Near-Infrared Absorption for Molecular Photoacoustic Cancer Imaging. ACS APPLIED MATERIALS & INTERFACES 2024; 16:5598-5612. [PMID: 38270979 PMCID: PMC11246536 DOI: 10.1021/acsami.3c16584] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/26/2024]
Abstract
Imaging plays a critical role in all stages of cancer care from early detection to diagnosis, prognosis, and therapy monitoring. Recently, photoacoustic imaging (PAI) has started to emerge into the clinical realm due to its high sensitivity and ability to penetrate tissues up to several centimeters deep. Herein, we encapsulated indocyanine green J (ICGJ) aggregate, one of the only FDA-approved organic exogenous contrast agents that absorbs in the near-infrared range, at high loadings up to ∼40% w/w within biodegradable polymersomes (ICGJ-Ps) composed of poly(lactide-co-glycolide-b-polyethylene glycol) (PLGA-b-PEG). The small Ps hydrodynamic diameter of 80 nm is advantageous for in vivo applications, while directional conjugation with epidermal growth factor receptor (EGFR) targeting cetuximab antibodies renders molecular specificity. Even when exposed to serum, the ∼11 nm-thick membrane of the Ps prevents dissociation of the encapsulated ICGJ for at least 48 h with a high ratio of ICGJ to monomeric ICG absorbances (i.e., I895/I780 ratio) of approximately 5.0 that enables generation of a strong NIR photoacoustic (PA) signal. The PA signal of polymersome-labeled breast cancer cells is proportional to the level of cellular EGFR expression, indicating the feasibility of molecular PAI with antibody-conjugated ICGJ-Ps. Furthermore, the labeled cells were successfully detected with PAI in highly turbid tissue-mimicking phantoms up to a depth of 5 mm with the PA signal proportional to the amount of cells. These data show the potential of molecular PAI with ICGJ-Ps for clinical applications such as tumor margin detection, evaluation of lymph nodes for the presence of micrometastasis, and laparoscopic imaging procedures.
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Affiliation(s)
- Mohammed R Kawelah
- McKetta Department of Chemical Engineering, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Sangheon Han
- Department of Imaging Physics, MD Anderson Cancer Center, Houston, Texas 77030, United States
- Department of Bioengineering, Rice University, Houston, Texas 77005, United States
| | - Ceren Atila Dincer
- McKetta Department of Chemical Engineering, The University of Texas at Austin, Austin, Texas 78712, United States
- Department of Chemical Engineering, Faculty of Engineering, Ankara Universit, Ankara 06100, Turkey
| | - Jongyeong Jeon
- McKetta Department of Chemical Engineering, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Joel Brisola
- McKetta Department of Chemical Engineering, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Aasim F Hussain
- Department of Biomedical Engineering, The University of Texas at Austin, Austin, Texas 78712, United States
| | | | - Richard Bouchard
- Department of Imaging Physics, MD Anderson Cancer Center, Houston, Texas 77030, United States
| | - Alexander E Marras
- Walker Department of Mechanical Engineering, The University of Texas at Austin, Austin, Texas 78712, United States
- Texas Materials Institute, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Thomas M Truskett
- McKetta Department of Chemical Engineering, The University of Texas at Austin, Austin, Texas 78712, United States
- Texas Materials Institute, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Konstantin V Sokolov
- Department of Imaging Physics, MD Anderson Cancer Center, Houston, Texas 77030, United States
- Graduate School of Biomedical Sciences, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030, United States
- Department of Bioengineering, Rice University, Houston, Texas 77005, United States
| | - Keith P Johnston
- McKetta Department of Chemical Engineering, The University of Texas at Austin, Austin, Texas 78712, United States
- Texas Materials Institute, The University of Texas at Austin, Austin, Texas 78712, United States
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Mahmut Z, Zhang C, Ruan F, Shi N, Zhang X, Wang Y, Zheng X, Tang Z, Dong B, Gao D, Sun J. Medical Applications and Advancement of Near Infrared Photosensitive Indocyanine Green Molecules. Molecules 2023; 28:6085. [PMID: 37630337 PMCID: PMC10459369 DOI: 10.3390/molecules28166085] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 07/30/2023] [Accepted: 08/04/2023] [Indexed: 08/27/2023] Open
Abstract
Indocyanine green (ICG) is an important kind of near infrared (NIR) photosensitive molecules for PTT/PDT therapy as well as imaging. When exposed to NIR light, ICG can produce reactive oxygen species (ROS), which can kill cancer cells and pathogenic bacteria. Moreover, the absorbed light can also be converted into heat by ICG molecules to eliminate cancer cells. In addition, it performs exceptionally well in optical imaging-guided tumor therapy and antimicrobial therapy due to its deeper tissue penetration and low photobleaching properties in the near-infrared region compared to other dyes. In order to solve the problems of water and optical stability and multi-function problem of ICG molecules, composite nanomaterials based on ICG have been designed and widely used, especially in the fields of tumors and sterilization. So far, ICG molecules and their composite materials have become one of the most famous infrared sensitive materials. However, there have been no corresponding review articles focused on ICG molecules. In this review, the molecular structure and properties of ICG, composite material design, and near-infrared light- triggered anti-tumor, and antibacterial, and clinical applications are reviewed in detail, which of great significance for related research.
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Affiliation(s)
- Zulpya Mahmut
- Department of Cell Biology and Medical Genetics, College of Basic Medical Science, Jilin University, Changchun 130021, China; (Z.M.); (C.Z.); (X.Z.); (Y.W.); (X.Z.)
| | - Chunmei Zhang
- Department of Cell Biology and Medical Genetics, College of Basic Medical Science, Jilin University, Changchun 130021, China; (Z.M.); (C.Z.); (X.Z.); (Y.W.); (X.Z.)
| | - Fei Ruan
- State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun 130012, China; (F.R.); (Z.T.)
| | - Nan Shi
- Department of Respiratory Medicine, No. 964 Hospital of People’s Liberation Army, 4799 Xi’an Road, Changchun 130062, China;
| | - Xinyao Zhang
- Department of Cell Biology and Medical Genetics, College of Basic Medical Science, Jilin University, Changchun 130021, China; (Z.M.); (C.Z.); (X.Z.); (Y.W.); (X.Z.)
| | - Yuda Wang
- Department of Cell Biology and Medical Genetics, College of Basic Medical Science, Jilin University, Changchun 130021, China; (Z.M.); (C.Z.); (X.Z.); (Y.W.); (X.Z.)
| | - Xianhong Zheng
- Department of Cell Biology and Medical Genetics, College of Basic Medical Science, Jilin University, Changchun 130021, China; (Z.M.); (C.Z.); (X.Z.); (Y.W.); (X.Z.)
| | - Zixin Tang
- State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun 130012, China; (F.R.); (Z.T.)
| | - Biao Dong
- State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun 130012, China; (F.R.); (Z.T.)
| | - Donghui Gao
- Department of Anesthesiology and Operating Room, School and Hospital of Stomatology, Jilin University, Changchun 130012, China
| | - Jiao Sun
- Department of Cell Biology and Medical Genetics, College of Basic Medical Science, Jilin University, Changchun 130021, China; (Z.M.); (C.Z.); (X.Z.); (Y.W.); (X.Z.)
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Lu W, Liu W, Hu A, Shen J, Yi H, Cheng Z. Combinatorial Polydopamine-Liposome Nanoformulation as an Effective Anti-Breast Cancer Therapy. Int J Nanomedicine 2023; 18:861-879. [PMID: 36844433 PMCID: PMC9944797 DOI: 10.2147/ijn.s382109] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Accepted: 01/27/2023] [Indexed: 02/18/2023] Open
Abstract
Introduction Drug delivery systems (DDSs) based on liposomes are potential tools to minimize the side effects and substantially enhance the therapeutic efficacy of chemotherapy. However, it is challenging to achieve biosafe, accurate, and efficient cancer therapy of liposomes with single function or single mechanism. To solve this problem, we designed a multifunctional and multimechanism nanoplatform based on polydopamine (PDA)-coated liposomes for accurate and efficient combinatorial cancer therapy of chemotherapy and laser-induced PDT/PTT. Methods ICG and DOX were co-incorporated in polyethylene glycol modified liposomes, which were further coated with PDA by a facile two-step method to construct PDA-liposome nanoparticles (PDA@Lipo/DOX/ICG). The safety of nanocarriers was investigated on normal HEK-293 cells, and the cellular uptake, intracellular ROS production capacity, and combinatorial treatment effect of the nanoparticles were assessed on human breast cancer cells MDA-MB-231. In vivo biodistribution, thermal imaging, biosafety assessment, and combination therapy effects were estimated based on MDA-MB-231 subcutaneous tumor model. Results Compared with DOX·HCl and Lipo/DOX/ICG, PDA@Lipo/DOX/ICG showed higher toxicity on MDA-MB-231 cells. After endocytosis by target cells, PDA@Lipo/DOX/ICG produced a large amount of ROS for PDT by 808 nm laser irradiation, and the cell inhibition rate of combination therapy reached up to 80.4%. After the tail vein injection (DOX equivalent of 2.5 mg/kg) in mice bearing MDA-MB-231 tumors, PDA@Lipo/DOX/ICG significantly accumulated at the tumor site at 24 h post injection. After 808 nm laser irradiation (1.0 W/cm2, 2 min) at this timepoint, PDA@Lipo/DOX/ICG efficiently suppressed the proliferation of MDA-MB-231 cell and even thoroughly ablated tumors. Negligible cardiotoxicity and no treatment-induced side effects were observed. Conclusion PDA@Lipo/DOX/ICG is a multifunctional nanoplatform based on PDA-coated liposomes for accurate and efficient combinatorial cancer therapy of chemotherapy and laser-induced PDT/PTT.
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Affiliation(s)
- Wangxing Lu
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, 410000, People’s Republic of China
| | - Wenjie Liu
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, 410000, People’s Republic of China
| | - Anna Hu
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, 410000, People’s Republic of China
| | - Jian Shen
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, 410000, People’s Republic of China
| | - Hanxi Yi
- School of Basic Medical Science, Central South University, Changsha, 410000, People’s Republic of China,Correspondence: Hanxi Yi; Wenjie Liu, Email ;
| | - Zeneng Cheng
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, 410000, People’s Republic of China
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Correlation of spectroscopic and structural properties of indocyanine green j-aggregates. BIOMEDICAL PHOTONICS 2022. [DOI: 10.24931/2413-9432-2022-11-3-4-16] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Indocyanine green (ICG), when in free form in a liquid, can form stable nanoparticle structures or colloidal solution, while changing its spectroscopic properties. In the work, the aggregation degree and the average size of nanoparticles depending on the concentration of a colloidal solution of indocyanine green (ICG NPs) in the form of J-aggregates were investigated by various methods based on light scattering. The size of nanoparticles is an important parameter from the point of view of clinical application, because the technique of intravenous administration of drugs, in order to avoid microvascular thrombosis and embolism, provides dosage forms with inclusions of individual molecules or their clusters, not exceeding 500 nm diameter. In turn, small nanoparticles less than 30 nm lead to prolonged circulation of the drug in the body with an increased possibility of permeation into cells of healthy tissue. In the course of studies, it was found that an increase in the concentration of ICG NPs in the solution leads to an increase in the average size of spontaneously formed J-aggregates, which, in turn, leads to a decrease in the absorption coefficient in the aggregates. Presumably, this phenomenon, i.e. the established nonlinear dependence of the J-aggregate absorption on its size, can be explained by the formation of absorption centers on the J-aggregate surface in the form of mobile surface molecules. The threshold range of ICG molecule concentration was determined, at which there is a transition from aggregation with an increase in size with a slow addition of ICG J-aggregate molecules in height to a rapid addition in width.
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Wu Y, Yu Y, Wang Z, Gao S, Zhang D, Yu A. NIR-II imaging with ICG for identifying perforators, assessing flap status and predicting division timing of pedicled flaps in a porcine model. JOURNAL OF BIOPHOTONICS 2022; 15:e202200061. [PMID: 35474297 DOI: 10.1002/jbio.202200061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2022] [Revised: 04/14/2022] [Accepted: 04/19/2022] [Indexed: 06/14/2023]
Abstract
The use of skin flaps to fill large defects is a key surgical technique in reconstructive surgery, effective real-time in vivo imaging for flap design and use is urgent. Currently, fluorescent imaging in the second NIR window (NIR-II; 1000-1700 nm) is characterized by non-radiation, less expensive and higher resolution in comparisons with the first NIR window (NIR-I; 700-900 nm) and other traditional imaging modalities. In this article, we identified the location and numbers of perforators and choke zone via NIR-II imaging. Then, eight abdominal perforator flaps were established and the perfusion zones were evaluatedat special time points. Finally, after eight pedicled flaps establishment, NIR-II imaging was used to guide the optimal timing for division of flap pedicle. The results showed that NIR-II fluorescence imaging with indocyanine green (ICG) can reliably visualize vascular supply, which makes it to be an accurate and in vivo imaging approach to flap clinical design and use.
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Affiliation(s)
- Yifan Wu
- Department of Orthopedics Trauma and Microsurgery, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Yifeng Yu
- Department of Orthopedics Trauma and Microsurgery, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Zheng Wang
- Department of Orthopedics Trauma and Microsurgery, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Siqi Gao
- Department of Orthopedics Trauma and Microsurgery, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Dong Zhang
- Department of Orthopedics Trauma and Microsurgery, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Aixi Yu
- Department of Orthopedics Trauma and Microsurgery, Zhongnan Hospital of Wuhan University, Wuhan, China
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Farrakhova D, Romanishkin I, Maklygina Y, Bezdetnaya L, Loschenov V. Analysis of Fluorescence Decay Kinetics of Indocyanine Green Monomers and Aggregates in Brain Tumor Model In Vivo. NANOMATERIALS 2021; 11:nano11123185. [PMID: 34947534 PMCID: PMC8709123 DOI: 10.3390/nano11123185] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/30/2021] [Revised: 11/22/2021] [Accepted: 11/23/2021] [Indexed: 12/26/2022]
Abstract
Spectroscopic approach with fluorescence time resolution allows one to determine the state of a brain tumor and its microenvironment via changes in the fluorescent dye's fluorescence lifetime. Indocyanine green (ICG) is an acknowledged infra-red fluorescent dye that self-assembles into stable aggregate forms (ICG NPs). ICG NPs aggregates have a tendency to accumulate in the tumor with a maximum accumulation at 24 h after systemic administration, enabling extended intraoperative diagnostic. Fluorescence lifetime analysis of ICG and ICG NPs demonstrates different values for ICG monomers and H-aggregates, indicating promising suitability for fluorescent diagnostics of brain tumors due to their affinity to tumor cells and stability in biological tissue.
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Affiliation(s)
- Dina Farrakhova
- Prokhorov General Physics Institute of the Russian Academy of Science, 119991 Moscow, Russia; (I.R.); (Y.M.); (V.L.)
- Correspondence: ; Tel.: +7-968-587-52-75
| | - Igor Romanishkin
- Prokhorov General Physics Institute of the Russian Academy of Science, 119991 Moscow, Russia; (I.R.); (Y.M.); (V.L.)
| | - Yuliya Maklygina
- Prokhorov General Physics Institute of the Russian Academy of Science, 119991 Moscow, Russia; (I.R.); (Y.M.); (V.L.)
| | - Lina Bezdetnaya
- Centre de Recherche en Automatique de Nancy, CNRS, Université de Lorraine, 54519 Vandoeuvre-lès-Nancy, France;
- Institut de Cancérologie de Lorraine, 54519 Vandoeuvre-lès-Nancy, France
| | - Victor Loschenov
- Prokhorov General Physics Institute of the Russian Academy of Science, 119991 Moscow, Russia; (I.R.); (Y.M.); (V.L.)
- Institute of Engineering Physics for Biomedicine, National Research Nuclear University MEPhI, 115409 Moscow, Russia
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