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Lan J, Chen S, Chen Z, Luo D, Yu C, Zeng L, Sun W, Zhang X, Yao X, Wu F, Chen J. Chemo-photodynamic antitumour therapy based on Er-doped upconversion nanoparticles coated with hypocrellin B and MnO 2. BIOMATERIALS ADVANCES 2024; 161:213891. [PMID: 38781738 DOI: 10.1016/j.bioadv.2024.213891] [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: 01/22/2024] [Revised: 04/29/2024] [Accepted: 05/10/2024] [Indexed: 05/25/2024]
Abstract
An antitumour chemo-photodynamic therapy nanoplatform was constructed based on phospholipid-coated NaYF4: Yb/Er upconversion nanoparticles (UCNPs). In this work, the amphiphilic block copolymer DSPE-PEG2000 was combined with the surface ligand oleic acid of the UCNPs through hydrophobic interaction to form liposomes with a dense hydrophobic layer in which the photosensitizer hypocrellin B (HB) was assembled. The coated HB formed J-aggregates, which caused a large redshift in the absorption spectrum and improved the quantum efficiency of energy transfer. Furthermore, MnO2 nanosheets grew in-situ on the liposomes through OMn coordination. Therefore, a multifunctional tumour microenvironment (TME)-responsive theranostic nanoplatform integrating photodynamic therapy (PDT) and chemodynamic therapy (CDT) was successfully developed. The results showed that this NIR-mediated chemo-photodynamic therapy nanoplatform was highly efficient for oncotherapy.
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Affiliation(s)
- Jianming Lan
- The School of Pharmacy, Fujian Medical University, Fuzhou 350122, PR China.
| | - Sisi Chen
- The School of Pharmacy, Fujian Medical University, Fuzhou 350122, PR China
| | - Zhiwei Chen
- The School of Pharmacy, Fujian Medical University, Fuzhou 350122, PR China
| | - Dengwang Luo
- Frontier Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering (Ministry of Education), School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, PR China
| | - Chunxiao Yu
- The School of Pharmacy, Fujian Medical University, Fuzhou 350122, PR China
| | - Lupeng Zeng
- The School of Pharmacy, Fujian Medical University, Fuzhou 350122, PR China
| | - Weiming Sun
- The School of Pharmacy, Fujian Medical University, Fuzhou 350122, PR China
| | - Xi Zhang
- The School of Pharmacy, Fujian Medical University, Fuzhou 350122, PR China
| | - Xu Yao
- The School of Pharmacy, Fujian Medical University, Fuzhou 350122, PR China
| | - Fang Wu
- The School of Pharmacy, Fujian Medical University, Fuzhou 350122, PR China
| | - Jinghua Chen
- The School of Pharmacy, Fujian Medical University, Fuzhou 350122, PR China.
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Li S, Wei X, Li S, Zhu C, Wu C. Up-Conversion Luminescent Nanoparticles for Molecular Imaging, Cancer Diagnosis and Treatment. Int J Nanomedicine 2020; 15:9431-9445. [PMID: 33268986 PMCID: PMC7701150 DOI: 10.2147/ijn.s266006] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Accepted: 10/06/2020] [Indexed: 12/21/2022] Open
Abstract
In the past few years, we have witnessed great development and application potential of various up-conversion luminescent nanoparticles (UCNPs) in the nanomedicine field. Based on the unique luminescent mechanism of UCNPs and the distinguishable features of cancer biomarkers and the microenvironment, an increasing number of smart UCNPs nanoprobes have been designed and widely applied to molecular imaging, cancer diagnosis, and treatment. Considerable technological success has been achieved, but the main obstacles to oncology nanomedicine is becoming an incomplete understanding of nano-bio interactions, the challenges regarding chemistry manufacturing and controls required for clinical translation and so on. This review highlights the progress of the design principles, synthesis and surface functionalization preparation, underlying applications and challenges of UCNPs-based probes for cancer bioimaging, diagnosis and treatment that capitalize on our growing understanding of tumor biology and smart nano-devices for accelerating the commercialization of UCNPs.
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Affiliation(s)
- Shuihong Li
- Institution of Pathogenic Biology, Hengyang Medical College, University of South China, Hengyang421001, Hunan, People’s Republic of China
| | - Xiaodan Wei
- School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu610054, Sichuan, People’s Republic of China
| | - Sisi Li
- Institution of Pathogenic Biology, Hengyang Medical College, University of South China, Hengyang421001, Hunan, People’s Republic of China
| | - Cuiming Zhu
- Institution of Pathogenic Biology, Hengyang Medical College, University of South China, Hengyang421001, Hunan, People’s Republic of China
| | - Chunhui Wu
- School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu610054, Sichuan, People’s Republic of China
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Zheng X, Liu W, Ge J, Jia Q, Nan F, Ding Y, Wu J, Zhang W, Lee CS, Wang P. Biodegradable Natural Product-Based Nanoparticles for Near-Infrared Fluorescence Imaging-Guided Sonodynamic Therapy. ACS APPLIED MATERIALS & INTERFACES 2019; 11:18178-18185. [PMID: 31037944 DOI: 10.1021/acsami.9b03270] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Natural products show high potential for clinical translation because of their specific biological activities and molecular structure diversities. Sonosensitizers that originate from natural products play a crucial role as anti-inflammatory and anticancer agents. Herein, hypocrellin-derivative nanoparticles (APHB NPs) were constructed for synchronous near-infrared fluorescence (NIR FL) imaging and sonodynamic therapy (SDT) for deep-seated tumors in vivo. The prepared APHB NPs exhibit excellent water solubility, FL in the NIR region, and effective reactive oxygen species generation under ultrasound stimulation. Furthermore, the APHB NPs show excellent biocompatibility, suitable biodegradation rate, and enhanced tumor accumulation. Therefore, the APHB NPs exhibit promising clinical potential as novel safe and precise NIR FL imaging and SDT agents for deep-seated tumor therapy.
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Affiliation(s)
- Xiuli Zheng
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials and CityU-CAS Joint Laboratory of Functional Materials and Devices, Technical Institute of Physics and Chemistry , Chinese Academy of Sciences , Beijing 100190 , People's Republic of China
- School of Future Technology , University of Chinese Academy of Sciences , Beijing 100049 , People's Republic of China
| | - Weimin Liu
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials and CityU-CAS Joint Laboratory of Functional Materials and Devices, Technical Institute of Physics and Chemistry , Chinese Academy of Sciences , Beijing 100190 , People's Republic of China
- School of Future Technology , University of Chinese Academy of Sciences , Beijing 100049 , People's Republic of China
| | - Jiechao Ge
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials and CityU-CAS Joint Laboratory of Functional Materials and Devices, Technical Institute of Physics and Chemistry , Chinese Academy of Sciences , Beijing 100190 , People's Republic of China
- School of Future Technology , University of Chinese Academy of Sciences , Beijing 100049 , People's Republic of China
| | - Qingyan Jia
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials and CityU-CAS Joint Laboratory of Functional Materials and Devices, Technical Institute of Physics and Chemistry , Chinese Academy of Sciences , Beijing 100190 , People's Republic of China
- School of Future Technology , University of Chinese Academy of Sciences , Beijing 100049 , People's Republic of China
| | - Fuchun Nan
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials and CityU-CAS Joint Laboratory of Functional Materials and Devices, Technical Institute of Physics and Chemistry , Chinese Academy of Sciences , Beijing 100190 , People's Republic of China
- School of Future Technology , University of Chinese Academy of Sciences , Beijing 100049 , People's Republic of China
| | - Ying Ding
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials and CityU-CAS Joint Laboratory of Functional Materials and Devices, Technical Institute of Physics and Chemistry , Chinese Academy of Sciences , Beijing 100190 , People's Republic of China
- School of Future Technology , University of Chinese Academy of Sciences , Beijing 100049 , People's Republic of China
| | - Jiasheng Wu
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials and CityU-CAS Joint Laboratory of Functional Materials and Devices, Technical Institute of Physics and Chemistry , Chinese Academy of Sciences , Beijing 100190 , People's Republic of China
| | - Wenjun Zhang
- Center of Super-Diamond and Advanced Films (COSDAF) & Department of Materials Science and Engineering , City University of Hong Kong , Kowloon 999077 , Hong Kong SAR , People's Republic of China
| | - Chun-Sing Lee
- Center of Super-Diamond and Advanced Films (COSDAF) & Department of Materials Science and Engineering , City University of Hong Kong , Kowloon 999077 , Hong Kong SAR , People's Republic of China
| | - Pengfei Wang
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials and CityU-CAS Joint Laboratory of Functional Materials and Devices, Technical Institute of Physics and Chemistry , Chinese Academy of Sciences , Beijing 100190 , People's Republic of China
- School of Future Technology , University of Chinese Academy of Sciences , Beijing 100049 , People's Republic of China
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Wawrzyńczyk D, Bazylińska U, Lamch Ł, Kulbacka J, Szewczyk A, Bednarkiewicz A, Wilk KA, Samoć M. Förster Resonance Energy Transfer-Activated Processes in Smart Nanotheranostics Fabricated in a Sustainable Manner. CHEMSUSCHEM 2019; 12:706-719. [PMID: 30134014 DOI: 10.1002/cssc.201801441] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2018] [Revised: 07/31/2018] [Indexed: 06/08/2023]
Abstract
Multilayer nanocarriers loaded with optically activated payloads are gaining increasing attention due to their anticipated crucial role for providing new mechanisms of energy transfers in the health-oriented applications, as well as for energy storage and environmental protection. The combination of careful selection of optical components for efficient Förster resonance energy transfer, and surface engineering of the nanocarriers, allowed us to synthesize and characterize novel theranostic nanosystems for diagnosis and therapy of deep-seated tumors. The cargo, constrained within the oil core of the nanocapsules, composed of NaYF4 :Tm+3 , Yb+3 up-converting nanoparticles together with a second-generation porphyrin-based photosensitizing agent-Verteporfin, assured requisite diagnostic and therapeutic functions under near-IR laser excitation. The outer polyaminoacid shell of the nanocapsules was functionalized with a ligand-poly(l-glutamic acid) functionalized by PEG-ylated folic acid-to ensure both a "stealth" effect and active targeting towards human breast cancer cells. The preparation criteria of all nanocarrier building blocks meet the requirements for sustainable and green chemistry practices. The multifunctionality of the proposed nanocarriers is a consequence of both the surface-functionalized organic exterior part, which was accessible for selective accumulation in cancer cells, and the hydrophobic optically active interior, which shows phototoxicity upon irradiation within the first biological window.
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Affiliation(s)
- Dominika Wawrzyńczyk
- Advanced Materials Engineering and Modelling Group, Faculty of Chemistry, Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370, Wroclaw, Poland
| | - Urszula Bazylińska
- Department of Organic and Pharmaceutical Technology, Faculty of Chemistry, Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370, Wroclaw, Poland
| | - Łukasz Lamch
- Department of Organic and Pharmaceutical Technology, Faculty of Chemistry, Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370, Wroclaw, Poland
| | - Julita Kulbacka
- Department of Molecular and Cellular Biology, Faculty of Pharmacy with Division of Laboratory Diagnostics, Medical University of Wrocław, Borowska 211A, 50-556, Wrocław, Poland
| | - Anna Szewczyk
- Department of Molecular and Cellular Biology, Faculty of Pharmacy with Division of Laboratory Diagnostics, Medical University of Wrocław, Borowska 211A, 50-556, Wrocław, Poland
| | | | - Kazimiera A Wilk
- Department of Organic and Pharmaceutical Technology, Faculty of Chemistry, Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370, Wroclaw, Poland
| | - Marek Samoć
- Advanced Materials Engineering and Modelling Group, Faculty of Chemistry, Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370, Wroclaw, Poland
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Wysokińska E, Cichos J, Kowalczyk A, Karbowiak M, Strządała L, Bednarkiewicz A, Kałas W. Toxicity Mechanism of Low Doses of NaGdF₄:Yb 3+,Er 3+ Upconverting Nanoparticles in Activated Macrophage Cell Lines. Biomolecules 2019; 9:biom9010014. [PMID: 30609856 PMCID: PMC6359000 DOI: 10.3390/biom9010014] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2018] [Revised: 12/15/2018] [Accepted: 12/21/2018] [Indexed: 02/03/2023] Open
Abstract
Gadolinium-doped nanoparticles (NPs) are regarded as promising luminescent probes. In this report, we studied details of toxicity mechanism of low doses of NaGdF4-based fluorescent nanoparticles in activated RAW264.7, J774A.1 macrophages. These cell lines were specifically sensitive to the treatment with nanoparticles. Using nanoparticles of three different sizes, but with a uniform zeta potential (about −11 mV), we observed rapid uptake of NPs by the cells, resulting in the increased lysosomal compartment and subsequent superoxide induction along with a decrease in mitochondrial potential, indicating the impairment of mitochondrial homeostasis. At the molecular level, this led to upregulation of proapoptotic Bax and downregulation of anti-apoptotic Bcl-2, which triggered the apoptosis with phosphatidylserine externalization, caspase-3 activation and DNA fragmentation. We provide a time frame of the toxicity process by presenting data from different time points. These effects were present regardless of the size of nanoparticles. Moreover, despite the stability of NaGdF4 nanoparticles at low pH, we identified cell acidification as an essential prerequisite of cytotoxic reaction using acidification inhibitors (NH4Cl or Bafilomycin A1). Therefore, approaching the evaluation of the biocompatibility of such materials, one should keep in mind that toxicity could be revealed only in specific cells. On the other hand, designing gadolinium-doped NPs with increased resistance to harsh conditions of activated macrophage phagolysosomes should prevent NP decomposition, concurrent gadolinium release, and thus the elimination of its toxicity.
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Affiliation(s)
- Edyta Wysokińska
- Hirszfeld Institute of Immunology and Experimental Therapy, PAS, 53-114 Wroclaw, Poland.
| | - Jakub Cichos
- Faculty of Chemistry, University of Wroclaw, 50-383 Wroclaw, Poland.
| | | | | | - Leon Strządała
- Hirszfeld Institute of Immunology and Experimental Therapy, PAS, 53-114 Wroclaw, Poland.
| | | | - Wojciech Kałas
- Hirszfeld Institute of Immunology and Experimental Therapy, PAS, 53-114 Wroclaw, Poland.
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Li Q, Huang C, Liu L, Hu R, Qu J. Enhancing Type I Photochemistry in Photodynamic Therapy Under Near Infrared Light by Using Antennae-Fullerene Complexes. Cytometry A 2018; 93:997-1003. [DOI: 10.1002/cyto.a.23596] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2018] [Accepted: 08/04/2018] [Indexed: 12/17/2022]
Affiliation(s)
- Qian Li
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering; Shenzhen University; Shenzhen 518060 China
| | - Chun Huang
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering; Shenzhen University; Shenzhen 518060 China
| | - Liwei Liu
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering; Shenzhen University; Shenzhen 518060 China
| | - Rui Hu
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering; Shenzhen University; Shenzhen 518060 China
| | - Junle Qu
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering; Shenzhen University; Shenzhen 518060 China
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Abstract
Photodynamic therapy (PDT) involves the combination of non-toxic dyes called photosensitizers (PS) and harmless visible light that interact with ambient oxygen to give reactive oxygen species (ROS) that can damage biomolecules and kill cells. PDT has mostly been developed as a cancer therapy but can also be used as an antimicrobial approach against localized infections. However even the longest wavelength used for exciting PS (in the 700 nm region) has relatively poor tissue penetration, and many PS are much better excited by blue and green light. Therefore upconversion nanoparticles (UCNPs) have been investigated in order to allow deeper-penetrating near-infrared light (980 nm or 810 nm) to be used for PDT. NaYF4 nanoparticles doped with Yb3+ and Er3+ or with Tm3+ and Er3+ have been attached to PS either by covalent conjugation, or by absorption to the coating or shell (used to render the UCNPs biocompatible). Forster resonance energy transfer to the PS then allows NIR light energy to be transduced into ROS leading to cell killing and tumor regression. Some studies have experimentally demonstrated the deep tissue advantage of UCNP-PDT. Recent advances have included dye-sensitized UCNPs and UCNPs coupled to PS, and other potentially synergistic drug molecules or techniques. A variety of bioimaging modalities have also been combined with upconversion PDT. Further studies are necessary to optimize the drug-delivery abilities of the UCNPs, improve the quantum yields, allow intravenous injection and tumor targeting, and ensure lack of toxicity at the required doses before potential clinical applications.
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Affiliation(s)
- Michael R Hamblin
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, MA, 02114 USA
- Department of Dermatology, Harvard Medical School, Boston, MA 02115, USA
- Harvard-MIT Division of Health Sciences and Technology, Cambridge, MA 02139, USA
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8
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Dawson P, Romanowski M. Excitation Modulation of Upconversion Nanoparticles for Switch-like Control of Ultraviolet Luminescence. J Am Chem Soc 2018; 140:5714-5718. [DOI: 10.1021/jacs.7b13677] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Peter Dawson
- Department of Biomedical Engineering, University of Arizona, Tucson, Arizona 85721, United States
| | - Marek Romanowski
- Department of Biomedical Engineering, University of Arizona, Tucson, Arizona 85721, United States
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Deng K, Li C, Huang S, Xing B, Jin D, Zeng Q, Hou Z, Lin J. Recent Progress in Near Infrared Light Triggered Photodynamic Therapy. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2017; 13:1702299. [PMID: 28961374 DOI: 10.1002/smll.201702299] [Citation(s) in RCA: 195] [Impact Index Per Article: 27.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2017] [Revised: 08/23/2017] [Indexed: 05/21/2023]
Abstract
Nowadays, photodynamic therapy (PDT) is under the research spotlight as an appealing modality for various malignant tumors. Compared with conventional PDT treatment activated by ultraviolet or visible light, near infrared (NIR) light-triggered PDT possessing deeper penetration to lesion area and lower photodamage to normal tissue holds great potential for in vivo deep-seated tumor. In this review, recent research progress related to the exploration of NIR light responsive PDT nanosystems is summarized. To address current obstacles of PDT treatment and facilitate the effective utilization, several innovative strategies are developed and introduced into PDT nanosystems, including the conjugation with targeted moieties, O2 self-sufficient PDT, dual photosensitizers (PSs)-loaded PDT nanoplatform, and PDT-involved synergistic therapy. Finally, the potential challenges as well as the prospective for further development are also discussed.
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Affiliation(s)
- Kerong Deng
- School of Applied Physics and Materials, Wuyi University, Jiangmen, Guangdong, 529020, China
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China
| | - Chunxia Li
- College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua, 321004, China
| | - Shanshan Huang
- School of Applied Physics and Materials, Wuyi University, Jiangmen, Guangdong, 529020, China
| | - Bengang Xing
- School of Physical & Mathematical Sciences, Nanyang Technological University, Singapore, 637371, Singapore
| | - Dayong Jin
- Institute for Biomedical Materials and Devices, Faculty of Science, University of Technology, Sydney, NSW, 2007, Australia
| | - Qingguang Zeng
- School of Applied Physics and Materials, Wuyi University, Jiangmen, Guangdong, 529020, China
| | - Zhiyao Hou
- School of Applied Physics and Materials, Wuyi University, Jiangmen, Guangdong, 529020, China
| | - Jun Lin
- School of Applied Physics and Materials, Wuyi University, Jiangmen, Guangdong, 529020, China
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China
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Yu S, Wang Z, Cao R, Meng L. Microwave–assisted synthesis of water–disperse and biocompatible NaGdF 4 : Yb,Ln@NaGdF 4 nanocrystals for UCL/CT/MR multimodal imaging. J Fluor Chem 2017. [DOI: 10.1016/j.jfluchem.2017.06.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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Abstract
This review summarizes the latest progress in deep photodynamic therapy (PDT), which overcomes the Achilles' heel of PDT.
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Affiliation(s)
- Wenpei Fan
- Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging
- Department of Biomedical Engineering
- School of Medicine
- Shenzhen University
- Shenzhen 518060
| | - Peng Huang
- Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging
- Department of Biomedical Engineering
- School of Medicine
- Shenzhen University
- Shenzhen 518060
| | - Xiaoyuan Chen
- Laboratory of Molecular Imaging and Nanomedicine
- National Institute of Biomedical Imaging and Bioengineering
- National Institutes of Health
- Bethesda
- USA
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Zeng L, Luo L, Pan Y, Luo S, Lu G, Wu A. In vivo targeted magnetic resonance imaging and visualized photodynamic therapy in deep-tissue cancers using folic acid-functionalized superparamagnetic-upconversion nanocomposites. NANOSCALE 2015; 7:8946-54. [PMID: 25920333 DOI: 10.1039/c5nr01932j] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Multifunctional nanoprobes used in magnetic resonance imaging (MRI) and photodynamic therapy (PDT) also have potential applications in diagnosis and visualized therapy of cancers, and hence it is important to investigate the active-targeting ability and in vivo reliability of these nanoprobes. In this work, folic acid (FA)-targeted, photosensitizer (PS)-loaded Fe3O4@NaYF4:Yb/Er (FA-NPs-PS) nanocomposites were synthesized for in vivo T2-weighted MRI and visualized PDT of cancers by modeling MCF-7 tumor-bearing nude mice. By measuring the upconversion luminescence (UCL) and fluorescence emission spectra, the as-prepared FA-NPs-PS nanocomposites showed near-infrared (NIR)-triggered PDT performance due to the production of a singlet oxygen species. Moreover, by tracing PS fluorescence in MCF-7, HeLa cells and in MCF-7 tumors, the FA-targeted nanocomposites demonstrated good targeting ability both in vitro and in vivo. Under the irradiation of a 980 nm laser, the viabilities of MCF-7 and HeLa cells incubated with FA-NPs-PS nanocomposites could decrease to about 18.4% and 30.7%, respectively, and the inhibition of MCF-7 tumors could reach about 94.9%. The transverse MR relaxivity of 63.79 mM(-1) s(-1) (r2 value) and in vivo MR imaging of MCF-7 tumors indicated an excellent T2-weighted MR performance. This work demonstrated that FA-targeted MRI/PDT nanoprobes are effective for in vivo diagnosis and visualized therapy of breast cancers.
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Affiliation(s)
- Leyong Zeng
- Key Laboratory of Magnetic Materials and Devices & Division of Functional Materials and Nanodevices, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, P. R. China.
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