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Liu H, Xiong H, Li C, Xu M, Yun Y, Ruan Y, Tang L, Zhang T, Su D, Sun X. 131I Induced In Vivo Proteolysis by Photoswitchable azoPROTAC Reinforces Internal Radiotherapy. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2310865. [PMID: 38678537 DOI: 10.1002/smll.202310865] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2023] [Revised: 03/18/2024] [Indexed: 05/01/2024]
Abstract
Photopharmacology, incorporating photoswitches such as azobenezes into drugs, is an emerging therapeutic method to realize spatiotemporal control of pharmacological activity by light. However, most photoswitchable molecules are triggered by UV light with limited tissue penetration, which greatly restricts the in vivo application. Here, this study proves that 131I can trigger the trans-cis photoisomerization of a reported azobenezen incorporating PROTACs (azoPROTAC). With the presence of 50 µCi mL-1 131I, the azoPROTAC can effectively down-regulate BRD4 and c-Myc levels in 4T1 cells at a similar level as it does under light irradiation (405 nm, 60 mW cm-2). What's more, the degradation of BRD4 can further benefit the 131I-based radiotherapy. The in vivo experiment proves that intratumoral co-adminstration of 131I (300 µCi) and azoPROTC (25 mg kg-1) via hydrogel not only successfully induce protein degradation in 4T1 tumor bearing-mice but also efficiently inhibit tumor growth with enhanced radiotherapeutic effect and anti-tumor immunological effect. This is the first time that a radioisotope is successfully used as a trigger in photopharmacology in a mouse model. It believes that this study will benefit photopharmacology in deep tissue.
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Affiliation(s)
- Huihui Liu
- State Key Laboratory of Natural Medicines, Key Laboratory of Drug Quality Control and Pharmacovigilance, School of Pharmacy, China Pharmaceutical University, Nanjing, 210009, China
- NHC Key Laboratory of Nuclear Technology Medical Transformation (Mianyang Central Hospital), Mianyang, 621000, China
| | - Hehua Xiong
- State Key Laboratory of Natural Medicines, Key Laboratory of Drug Quality Control and Pharmacovigilance, School of Pharmacy, China Pharmaceutical University, Nanjing, 210009, China
| | - Changjun Li
- State Key Laboratory of Natural Medicines, Key Laboratory of Drug Quality Control and Pharmacovigilance, School of Pharmacy, China Pharmaceutical University, Nanjing, 210009, China
| | - Mengxia Xu
- State Key Laboratory of Natural Medicines, Key Laboratory of Drug Quality Control and Pharmacovigilance, School of Pharmacy, China Pharmaceutical University, Nanjing, 210009, China
| | - Yuyang Yun
- State Key Laboratory of Natural Medicines, Key Laboratory of Drug Quality Control and Pharmacovigilance, School of Pharmacy, China Pharmaceutical University, Nanjing, 210009, China
| | - Yiling Ruan
- State Key Laboratory of Natural Medicines, Key Laboratory of Drug Quality Control and Pharmacovigilance, School of Pharmacy, China Pharmaceutical University, Nanjing, 210009, China
| | - Lijun Tang
- Department of Nuclear Medicine, The First Affiliated Hospital of Nanjing Medical University, Guangzhou Road 300, Nanjing, 210029, China
| | - Tao Zhang
- Department of Radiopharmaceuticals, Nuclear Medicine Clinical Translation Center, Nanjing Medical University, Nanjing, 211166, China
| | - Dan Su
- Key Laboratory of Drug Safety Evaluation and Research of Zhejiang Province, Department of Clinical Medicine, Hangzhou Medical College, Hangzhou, 310053, China
| | - Xiaolian Sun
- State Key Laboratory of Natural Medicines, Key Laboratory of Drug Quality Control and Pharmacovigilance, School of Pharmacy, China Pharmaceutical University, Nanjing, 210009, China
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Nasra S, Bhatia D, Kumar A. Recent advances in nanoparticle-based drug delivery systems for rheumatoid arthritis treatment. NANOSCALE ADVANCES 2022; 4:3479-3494. [PMID: 36134349 PMCID: PMC9400644 DOI: 10.1039/d2na00229a] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Accepted: 07/19/2022] [Indexed: 05/28/2023]
Abstract
Nanotechnology has increasingly emerged as a promising tool for exploring new approaches, from treating complex conditions to early detection of the onset of multiple disease states. Tailored designer nanoparticles can now more comprehensively interact with their cellular targets and various pathogens due to a similar size range and tunable surface properties. The basic goal of drug delivery is to employ pharmaceuticals only where they are needed, with as few adverse effects and off-target consequences as possible. Rheumatoid arthritis (RA) is a chronic inflammatory illness that leads to progressive loss of bone and cartilage, resulting in acute impairment, decreased life expectancy, and increased death rates. Recent advancements in treatment have significantly slowed the progression of the disease and improved the lives of many RA sufferers. Some patients, on the other hand, attain or maintain illness remission without needing to continue immunosuppressive therapy. Furthermore, a large percentage of patients do not respond to current treatments or acquire tolerance to them. As a result, novel medication options for RA therapy are still needed. Nanocarriers, unlike standard medications, are fabricated to transport drugs directly to the location of joint inflammation, evading systemic and negative effects. As a result, researchers are reconsidering medicines that were previously thought to be too hazardous for systemic delivery. This article gives an overview of contemporary nanotechnology-based tactics for treating rheumatoid arthritis, as well as how the nanotherapeutic regimen could be enhanced in the future.
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Affiliation(s)
- Simran Nasra
- Biological & Life Sciences, School of Arts & Sciences, Ahmedabad University, Central Campus Navrangpura Ahmedabad Gujarat India +91796191127
| | - Dhiraj Bhatia
- Biological Engineering Discipline, Indian Institute of Technology, IIT Gandhinagar Palaj 382355 Gujarat India
| | - Ashutosh Kumar
- Biological & Life Sciences, School of Arts & Sciences, Ahmedabad University, Central Campus Navrangpura Ahmedabad Gujarat India +91796191127
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Pan Y, Tang W, Fan W, Zhang J, Chen X. Development of nanotechnology-mediated precision radiotherapy for anti-metastasis and radioprotection. Chem Soc Rev 2022; 51:9759-9830. [DOI: 10.1039/d1cs01145f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Radiotherapy (RT), including external beam RT and internal radiation therapy, uses high-energy ionizing radiation to kill tumor cells.
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Affiliation(s)
- Yuanbo Pan
- Department of Neurosurgery, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310009, China
- Key Laboratory of Precise Treatment and Clinical Translational Research of Neurological Diseases, Hangzhou, 310009, Zhejiang, China
- Clinical Research Center for Neurological Diseases of Zhejiang Province, Hangzhou, 310009, China
- Departments of Diagnostic Radiology, Surgery, Chemical and Biomolecular Engineering, and Biomedical Engineering, Yong Loo Lin School of Medicine and College of Design and Engineering, National University of Singapore, Singapore 119074, Singapore
| | - Wei Tang
- Departments of Pharmacy and Diagnostic Radiology, Nanomedicine Translational Research Program, Faculty of Science and Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117544, Singapore
| | - Wenpei Fan
- State Key Laboratory of Natural Medicines and Jiangsu Key Laboratory of Drug Discovery for Metabolic Diseases, Center of Advanced Pharmaceuticals and Biomaterials, China Pharmaceutical University, Nanjing, 210009, China
| | - Jianmin Zhang
- Department of Neurosurgery, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310009, China
- Key Laboratory of Precise Treatment and Clinical Translational Research of Neurological Diseases, Hangzhou, 310009, Zhejiang, China
- Clinical Research Center for Neurological Diseases of Zhejiang Province, Hangzhou, 310009, China
| | - Xiaoyuan Chen
- Departments of Diagnostic Radiology, Surgery, Chemical and Biomolecular Engineering, and Biomedical Engineering, Yong Loo Lin School of Medicine and College of Design and Engineering, National University of Singapore, Singapore 119074, Singapore
- Clinical Imaging Research Centre, Centre for Translational Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117599, Singapore
- Nanomedicine Translational Research Program, NUS Center for Nanomedicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117597, Singapore
- Institute of Molecular and Cell Biology, Agency for Science, Technology, and Research (A*STAR), 61 Biopolis Drive, Proteos, Singapore, 138673, Singapore
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Brevé TG, Filius M, Weerdenburg S, van der Griend SJ, Groeneveld TP, Denkova AG, Eelkema R. Light sensitive phenacyl crosslinked dextran hydrogels for controlled delivery. Chemistry 2021; 28:e202103523. [PMID: 34939694 PMCID: PMC9306828 DOI: 10.1002/chem.202103523] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Indexed: 11/16/2022]
Abstract
Stimuli‐responsive soft materials enable controlled release of loaded drug molecules and biomolecules. Controlled release of potent chemotherapeutic or immunotherapeutic agents is crucial to reduce unwanted side effects. In an effort to develop controlled release strategies that can be triggered by using Cerenkov luminescence, we have developed polymer hydrogels that can release bovine serum albumin and immunoglobulin G by using light (254 nm–375 nm) as a trigger. We describe the synthesis and photochemical characterization of two light sensitive phenacyl bis‐azide crosslinkers that are used to prepare transparent self‐supporting hydrogel patches. One crosslinker was designed to optimize the overlap with the Cerenkov luminescence emission window, bearing an π‐extended phenacyl core, resulting in a high quantum yield (14 %) of photocleavage when irradiated with 375 nm light. We used the extended phenacyl crosslinker for the preparation of protein‐loaded dextran hydrogel patches, which showed efficient and selective dosed release of bovine serum albumin or immunoglobulin G after irradiation with 375 nm light. Cerenkov‐triggered release is as yet inconclusive due to unexpected side‐reactivity. Based on the high quantum yield, efficient release and large overlap with the Cerenkov window, we envision application of these photosensitive soft materials in radiation targeted drug release.
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Affiliation(s)
- Tobias G Brevé
- Delft University of Technology: Technische Universiteit Delft, Department of Chemical Engineering, NETHERLANDS
| | - Mike Filius
- Delft University of Technology: Technische Universiteit Delft, Department of Bionanoscience, NETHERLANDS
| | - Sven Weerdenburg
- Delft University of Technology: Technische Universiteit Delft, Department of Chemical engineering, NETHERLANDS
| | - Stefan J van der Griend
- Delft University of Technology: Technische Universiteit Delft, Department of Chemical Engineering, NETHERLANDS
| | - Tim P Groeneveld
- Delft University of Technology: Technische Universiteit Delft, Department of Chemical Engineering, NETHERLANDS
| | - Antonia G Denkova
- Delft University of Technology: Technische Universiteit Delft, Department of Radiation Science and Technology, NETHERLANDS
| | - Rienk Eelkema
- Delft University of Technology: Technische Universiteit Delft, Department of Chemical Engineering, van der Maasweg 9, 2629HZ, Delft, NETHERLANDS
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Zhang Y, Jiang Q, Liu X, Peng L, Tang X, Li L, Ling X, Yang X, He C, Tao X, Hou D. A Study of Hydrophobically Modified Pullulan Nanoparticles with Different Hydrophobic Densities on the Effect of Anti-Colon Cancer Cell Efficiency. J Biomed Nanotechnol 2021; 17:1972-1983. [PMID: 34706797 DOI: 10.1166/jbn.2021.3173] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
To discuss the effect of hydrophobic groups of a polymer on the structural properties and function of polymer nanoparticles (NPs), we grafted chenodeoxycholic acid (CDCA) with pullulan (PU) to form hydrophobically modified PU (PUC). Three PUC polymers, namely, PUC-1, PUC-2, and PUC-3, with different degrees of substitution were designed by changing the feed ratio of CDCA and PU. 1H-NMR spectra showed that the PUC polymer was successfully synthesized, and the degrees of hydrophobic substitution for PUC-1, PUC-2, and PUC-3 were calculated to be 10.66%, 13.92%, and 16.94%, respectively. The PUC NPs were prepared by the dialysis method and were shown to be uniformly spherical by transmission electron microscopy (TEM). The average sizes were about (220±10) nm, (203±7) nm, and (163±6) nm under dynamic light scattering (DLS) for PUC-1 NPs, PUC-2 NPs, and PUC-3 NPs, respectively. Drug release experiments showed that the three PUC/DOX NPs exhibited good sustained release. At 48 h, the IC50 of doxorubicin in inhibiting colon cancer HCT116 cells was 0.0904 μg/mL. A cell study showed that PUC-3/DOX NPs had the highest uptake efficiency by HCT116 cells with the most cytotoxicity and inhibited the migration of HCT116 cells with the highest efficiency. The structural properties and function of polymer NPs were closely related to the hydrophobic groups in the polymer, and NPs with higher hydrophobicity showed a smaller size, higher drug capacity, and greater cell efficiency.
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Affiliation(s)
- Yi Zhang
- Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province, School of Medicine; Key Laboratory of Protein Chemistry and Developmental Biology of Fish of Ministry of Education, Hunan Normal University, Changsha, 410013, PR China
| | - Qing Jiang
- Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province, School of Medicine; Key Laboratory of Protein Chemistry and Developmental Biology of Fish of Ministry of Education, Hunan Normal University, Changsha, 410013, PR China
| | - Xinyi Liu
- Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province, School of Medicine; Key Laboratory of Protein Chemistry and Developmental Biology of Fish of Ministry of Education, Hunan Normal University, Changsha, 410013, PR China
| | - Liping Peng
- Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province, School of Medicine; Key Laboratory of Protein Chemistry and Developmental Biology of Fish of Ministry of Education, Hunan Normal University, Changsha, 410013, PR China
| | - Xinyi Tang
- Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province, School of Medicine; Key Laboratory of Protein Chemistry and Developmental Biology of Fish of Ministry of Education, Hunan Normal University, Changsha, 410013, PR China
| | - Ling Li
- Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province, School of Medicine; Key Laboratory of Protein Chemistry and Developmental Biology of Fish of Ministry of Education, Hunan Normal University, Changsha, 410013, PR China
| | - Xiao Ling
- Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province, School of Medicine; Key Laboratory of Protein Chemistry and Developmental Biology of Fish of Ministry of Education, Hunan Normal University, Changsha, 410013, PR China
| | - Xiaoping Yang
- Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province, School of Medicine; Key Laboratory of Protein Chemistry and Developmental Biology of Fish of Ministry of Education, Hunan Normal University, Changsha, 410013, PR China
| | - Chunlian He
- Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province, School of Medicine; Key Laboratory of Protein Chemistry and Developmental Biology of Fish of Ministry of Education, Hunan Normal University, Changsha, 410013, PR China
| | - Xiaojun Tao
- Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province, School of Medicine; Key Laboratory of Protein Chemistry and Developmental Biology of Fish of Ministry of Education, Hunan Normal University, Changsha, 410013, PR China
| | - Defu Hou
- Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province, School of Medicine; Key Laboratory of Protein Chemistry and Developmental Biology of Fish of Ministry of Education, Hunan Normal University, Changsha, 410013, PR China
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Yi X, Shen M, Liu X, Gu J. Emerging strategies based on nanomaterials for ionizing radiation-optimized drug treatment of cancer. NANOSCALE 2021; 13:13943-13961. [PMID: 34477676 DOI: 10.1039/d1nr03034e] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Drug-radiotherapy is a common and effective combinational treatment for cancer. This study aimed to explore the ionizing radiation-optimized drug treatment based on nanomaterials so as to improve the synergistic efficacy of drug-radiotherapy against cancer and limit the adverse effect on healthy organs. In this review, these emerging strategies were divided into four parts. First, the delivery of the drug-loaded nanoparticles was optimized owing to the strengthened passive targeting process, active targeting process, and cell targeting process of nanoparticles after ionizing radiation exposure. Second, nanomaterials were designed to respond to the ionizing radiation, thus leading to the release of the loading drugs controllably. Third, radiation-activated pro-drugs were loaded onto nanoparticles for radiation-triggered drug therapy. In particular, nontoxic nanoparticles with radiosensitization capability and innocuous radio-dynamic contrast agents can be considered as radiation-activated drugs, which were discussed in this review. Fourth, according to the various synergetic mechanisms, radiotherapy could improve the drug response of cancer, obtaining optimized drug-radiotherapy. Finally, relative suggestions were provided to further optimize these aforementioned strategies. Therefore, a novel topic was selected and the emerging strategies in this region were discussed, aiming to stimulate the inspiration for the development of ionizing radiation-optimized drug treatment based on nanomaterials.
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Affiliation(s)
- Xuan Yi
- School of Pharmacy, Jiangsu Key Laboratory of Inflammation and Molecular Drug Targets, Nantong University, Nantong, Jiangsu 226001, China.
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7
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Chen J, Qian C, Ren P, Yu H, Kong X, Huang C, Luo H, Chen G. Light-Responsive Micelles Loaded With Doxorubicin for Osteosarcoma Suppression. Front Pharmacol 2021; 12:679610. [PMID: 34220512 PMCID: PMC8249570 DOI: 10.3389/fphar.2021.679610] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Accepted: 05/19/2021] [Indexed: 01/14/2023] Open
Abstract
The enhancement of tumor targeting and cellular uptake of drugs are significant factors in maximizing anticancer therapy and minimizing the side effects of chemotherapeutic drugs. A key challenge remains to explore stimulus-responsive polymeric nanoparticles to achieve efficient drug delivery. In this study, doxorubicin conjugated polymer (Poly-Dox) with light-responsiveness was synthesized, which can self-assemble to form polymeric micelles (Poly-Dox-M) in water. As an inert structure, the polyethylene glycol (PEG) can shield the adsorption of protein and avoid becoming a protein crown in the blood circulation, improving the tumor targeting of drugs and reducing the cardiotoxicity of doxorubicin (Dox). Besides, after ultraviolet irradiation, the amide bond connecting Dox with PEG can be broken, which induced the responsive detachment of PEG and enhanced cellular uptake of Dox. Notably, the results of immunohistochemistry in vivo showed that Poly-Dox-M had no significant damage to normal organs. Meanwhile, they showed efficient tumor-suppressive effects. This nano-delivery system with the light-responsive feature might hold great promises for the targeted therapy for osteosarcoma.
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Affiliation(s)
- Jiayi Chen
- Bengbu Medical College, Bengbu, China.,Jiaxing Key Laboratory of Basic Research and Clinical Translation on Orthopedic Biomaterials, Department of Orthopaedics, The Second Affiliated Hospital of Jiaxing University, Jiaxing, China
| | | | - Peng Ren
- Bengbu Medical College, Bengbu, China.,Jiaxing Key Laboratory of Basic Research and Clinical Translation on Orthopedic Biomaterials, Department of Orthopaedics, The Second Affiliated Hospital of Jiaxing University, Jiaxing, China
| | - Han Yu
- Jiaxing Key Laboratory of Basic Research and Clinical Translation on Orthopedic Biomaterials, Department of Orthopaedics, The Second Affiliated Hospital of Jiaxing University, Jiaxing, China
| | - Xiangjia Kong
- Jiaxing Key Laboratory of Basic Research and Clinical Translation on Orthopedic Biomaterials, Department of Orthopaedics, The Second Affiliated Hospital of Jiaxing University, Jiaxing, China
| | - Chenglong Huang
- Jiaxing Key Laboratory of Basic Research and Clinical Translation on Orthopedic Biomaterials, Department of Orthopaedics, The Second Affiliated Hospital of Jiaxing University, Jiaxing, China
| | - Huanhuan Luo
- Jiaxing Key Laboratory of Basic Research and Clinical Translation on Orthopedic Biomaterials, Department of Orthopaedics, The Second Affiliated Hospital of Jiaxing University, Jiaxing, China
| | - Gang Chen
- Bengbu Medical College, Bengbu, China.,Jiaxing Key Laboratory of Basic Research and Clinical Translation on Orthopedic Biomaterials, Department of Orthopaedics, The Second Affiliated Hospital of Jiaxing University, Jiaxing, China
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Sooryakala K, Ramalingam S, Periandy S, Aarthi R. NLO evaluation on opto-electronic application and chemical potential oscillation analysis of 2-Chloro-4-nitro-N-methylaniline crystal using crystallographic, spectroscopic and theoretical tools. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.129961] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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9
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Fan R, Chen C, Hou H, Chuan D, Mu M, Liu Z, Liang R, Guo G, Xu J. Tumor Acidity and Near‐Infrared Light Responsive Dual Drug Delivery Polydopamine‐Based Nanoparticles for Chemo‐Photothermal Therapy. ADVANCED FUNCTIONAL MATERIALS 2021. [DOI: 10.1002/adfm.202009733] [Citation(s) in RCA: 64] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Rangrang Fan
- Department of Neurosurgery West China Hospital Sichuan University Chengdu 610041 P. R. China
- State Key Laboratory of Biotherapy and Cancer Center West China Hospital Sichuan University and Collaborative Innovation Center for Biotherapy Chengdu 610041 P. R. China
| | - Caili Chen
- School of Basic Medical Sciences Xinxiang Medical University Xinxiang Henan 453003 P. R. China
| | - Huan Hou
- State Key Laboratory of Biotherapy and Cancer Center West China Hospital Sichuan University and Collaborative Innovation Center for Biotherapy Chengdu 610041 P. R. China
| | - Di Chuan
- State Key Laboratory of Biotherapy and Cancer Center West China Hospital Sichuan University and Collaborative Innovation Center for Biotherapy Chengdu 610041 P. R. China
| | - Min Mu
- State Key Laboratory of Biotherapy and Cancer Center West China Hospital Sichuan University and Collaborative Innovation Center for Biotherapy Chengdu 610041 P. R. China
| | - Zhiyong Liu
- Department of Neurosurgery West China Hospital Sichuan University Chengdu 610041 P. R. China
| | - Ruichao Liang
- Department of Neurosurgery West China Hospital Sichuan University Chengdu 610041 P. R. China
| | - Gang Guo
- State Key Laboratory of Biotherapy and Cancer Center West China Hospital Sichuan University and Collaborative Innovation Center for Biotherapy Chengdu 610041 P. R. China
| | - Jianguo Xu
- Department of Neurosurgery West China Hospital Sichuan University Chengdu 610041 P. R. China
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Pogue BW, Zhang R, Cao X, Jia JM, Petusseau A, Bruza P, Vinogradov SA. Review of in vivo optical molecular imaging and sensing from x-ray excitation. JOURNAL OF BIOMEDICAL OPTICS 2021; 26:JBO-200308VR. [PMID: 33386709 PMCID: PMC7778455 DOI: 10.1117/1.jbo.26.1.010902] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Accepted: 11/24/2020] [Indexed: 05/05/2023]
Abstract
SIGNIFICANCE Deep-tissue penetration by x-rays to induce optical responses of specific molecular reporters is a new way to sense and image features of tissue function in vivo. Advances in this field are emerging, as biocompatible probes are invented along with innovations in how to optimally utilize x-ray sources. AIM A comprehensive review is provided of the many tools and techniques developed for x-ray-induced optical molecular sensing, covering topics ranging from foundations of x-ray fluorescence imaging and x-ray tomography to the adaptation of these methods for sensing and imaging in vivo. APPROACH The ways in which x-rays can interact with molecules and lead to their optical luminescence are reviewed, including temporal methods based on gated acquisition and multipoint scanning for improved lateral or axial resolution. RESULTS While some known probes can generate light upon x-ray scintillation, there has been an emergent recognition that excitation of molecular probes by x-ray-induced Cherenkov light is also possible. Emission of Cherenkov radiation requires a threshold energy of x-rays in the high kV or MV range, but has the advantage of being able to excite a broad range of optical molecular probes. In comparison, most scintillating agents are more readily activated by lower keV x-ray energies but are composed of crystalline inorganic constituents, although some organic biocompatible agents have been designed as well. Methods to create high-resolution structured x-ray-optical images are now available, based upon unique scanning approaches and/or a priori knowledge of the scanned x-ray beam geometry. Further improvements in spatial resolution can be achieved by careful system design and algorithm optimization. Current applications of these hybrid x-ray-optical approaches include imaging of tissue oxygenation and pH as well as of certain fluorescent proteins. CONCLUSIONS Discovery of x-ray-excited reporters combined with optimized x-ray scan sequences can improve imaging resolution and sensitivity.
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Affiliation(s)
- Brian W. Pogue
- Thayer School of Engineering at Dartmouth, Hanover, New Hampshire, United States
- Geisel School of Medicine at Dartmouth, Lebanon, New Hampshire, United States
| | - Rongxiao Zhang
- Thayer School of Engineering at Dartmouth, Hanover, New Hampshire, United States
- Geisel School of Medicine at Dartmouth, Lebanon, New Hampshire, United States
| | - Xu Cao
- Thayer School of Engineering at Dartmouth, Hanover, New Hampshire, United States
| | - Jeremy Mengyu Jia
- Stanford University School of Medicine, Department of Radiation Oncology, Palo Alto, California, United States
| | - Arthur Petusseau
- Thayer School of Engineering at Dartmouth, Hanover, New Hampshire, United States
| | - Petr Bruza
- Thayer School of Engineering at Dartmouth, Hanover, New Hampshire, United States
| | - Sergei A. Vinogradov
- University of Pennsylvania, Perelman School of Medicine, Department of Biochemistry and Biophysics, Philadelphia, Pennsylvania, United States
- University of Pennsylvania, School of Arts of Sciences, Department of Chemistry, Philadelphia, Pennsylvania, United States
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