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Zhou W, Yao Y, Qin H, Xing X, Li Z, Ouyang M, Fan H. Size Dependence of Gold Nanorods for Efficient and Rapid Photothermal Therapy. Int J Mol Sci 2024; 25:2018. [PMID: 38396695 PMCID: PMC10888739 DOI: 10.3390/ijms25042018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Revised: 01/31/2024] [Accepted: 02/05/2024] [Indexed: 02/25/2024] Open
Abstract
In recent years, gold nanomaterials have become a hot topic in photothermal tumor therapy due to their unique surface plasmon resonance characteristics. The effectiveness of photothermal therapy is highly dependent on the shape and size of gold nanoparticles. In this work, we investigate the photothermal therapeutic effects of four different sizes of gold nanorods (GNRs). The results show that the uptake of short GNRs with aspect ratios 3.3-3.5 by cells is higher than that of GNRs with aspect ratios 4-5.5. Using a laser with single pulse energy as low as 28 pJ laser for 20 s can induce the death of liver cancer cells co-cultured with short GNRs. Long GNRs required twice the energy to achieve the same therapeutic effect. The dual-temperature model is used to simulate the photothermal response of intracellular clusters irradiated by a laser. It is found that small GNRs are easier to compact because of their morphological characteristics, and the electromagnetic coupling between GNRs is better, which increases the internal field enhancement, resulting in higher local temperature. Compared with a single GNR, GNR clusters are less dependent on polarization and wavelength, which is more conducive to the flexible selection of excitation laser sources.
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Affiliation(s)
- Wei Zhou
- Guangdong Provincial Key Laboratory of Nanophotonic Functional Materials and Devices, School of Information and Optoelectronic Science and Engineering, Guangdong Basic Research Center of Excellence for Structure and Fundamental Interactions of Matter, South China Normal University, Guangzhou 510006, China (Y.Y.)
- Technology & Centre for Optical and Electromagnetic Research, South China Academy of Advanced Optoelectronics and National Center for International Research on Green Optoelectronics, South China Normal University, Guangzhou 510006, China;
| | - Yanhua Yao
- Guangdong Provincial Key Laboratory of Nanophotonic Functional Materials and Devices, School of Information and Optoelectronic Science and Engineering, Guangdong Basic Research Center of Excellence for Structure and Fundamental Interactions of Matter, South China Normal University, Guangzhou 510006, China (Y.Y.)
| | - Hailing Qin
- Guangdong Provincial Key Laboratory of Nanophotonic Functional Materials and Devices, School of Information and Optoelectronic Science and Engineering, Guangdong Basic Research Center of Excellence for Structure and Fundamental Interactions of Matter, South China Normal University, Guangzhou 510006, China (Y.Y.)
| | - Xiaobo Xing
- Technology & Centre for Optical and Electromagnetic Research, South China Academy of Advanced Optoelectronics and National Center for International Research on Green Optoelectronics, South China Normal University, Guangzhou 510006, China;
| | - Zongbao Li
- Ministry of Education Key Laboratory of Textile Fiber Products, School of Materials Science and Engineering, Wuhan Textile University, Wuhan 430200, China;
| | - Min Ouyang
- Guangdong Provincial Key Laboratory of Nanophotonic Functional Materials and Devices, School of Information and Optoelectronic Science and Engineering, Guangdong Basic Research Center of Excellence for Structure and Fundamental Interactions of Matter, South China Normal University, Guangzhou 510006, China (Y.Y.)
| | - Haihua Fan
- Guangdong Provincial Key Laboratory of Nanophotonic Functional Materials and Devices, School of Information and Optoelectronic Science and Engineering, Guangdong Basic Research Center of Excellence for Structure and Fundamental Interactions of Matter, South China Normal University, Guangzhou 510006, China (Y.Y.)
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Zhao M, Liu Y, Yin C. Gold nanorod-chitosan based nanocomposites for photothermal and chemoembolization therapy of breast cancer. Int J Biol Macromol 2024; 259:129197. [PMID: 38184048 DOI: 10.1016/j.ijbiomac.2023.129197] [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: 08/03/2023] [Revised: 12/06/2023] [Accepted: 12/31/2023] [Indexed: 01/08/2024]
Abstract
Gold nanorods (AuNR) have received significant attention in tumor thermo-chemotherapy. However, insufficient thermal availability limits the in vivo highly efficient applications of AuNR in photothermal therapy. In this study, we have fabricated N-isopropylacrylamide grafted O-carboxymethyl chitosan nanoparticles (NCMC NPs) with thermo-responsive properties for co-encapsulating AuNR and doxorubicin (DOX), forming AuNR@NCMC/DOX nanocomposites (NCs). As a result of the thermo- and photothermal-responsiveness, AuNR@NCMC/DOX NCs exhibited irreversible aggregation at high temperature and under near-infrared (NIR) irradiation with an increase of size to 3 μm. When AuNR@NCMC/DOX NCs reached tumor sites following intravenous administration, they were located in the tumor vessels under NIR irradiation due to an embolization effect. This response enhanced tumor targeting, on-demand release, and the thermal performance of AuNR@NCMC/DOX NCs. We have observed higher tumor accumulation of DOX and AuNR with subsequent stronger inhibition of tumor growth than that achieved without NIR irradiation. The development of AuNR-based NCs with multiple smart responsivenesses at tumors can provide a promising paradigm for solid tumor treatment via the cooperative effects of photothermal therapy and chemoembolization.
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Affiliation(s)
- Mengxin Zhao
- State Key Laboratory of Genetic Engineering, Department of Pharmaceutical Sciences, School of Life Sciences, Fudan University, Shanghai 200438, China
| | - Yifu Liu
- State Key Laboratory of Genetic Engineering, Department of Pharmaceutical Sciences, School of Life Sciences, Fudan University, Shanghai 200438, China
| | - Chunhua Yin
- State Key Laboratory of Genetic Engineering, Department of Pharmaceutical Sciences, School of Life Sciences, Fudan University, Shanghai 200438, China.
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3
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Liu J, Liu YY, Li CS, Cao A, Wang H. Exocytosis of Nanoparticles: A Comprehensive Review. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:2215. [PMID: 37570533 PMCID: PMC10421347 DOI: 10.3390/nano13152215] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2023] [Revised: 07/24/2023] [Accepted: 07/26/2023] [Indexed: 08/13/2023]
Abstract
Both biomedical applications and safety assessments of manufactured nanomaterials require a thorough understanding of the interaction between nanomaterials and cells, including how nanomaterials enter cells, transport within cells, and leave cells. However, compared to the extensively studied uptake and trafficking of nanoparticles (NPs) in cells, less attention has been paid to the exocytosis of NPs. Yet exocytosis is an indispensable process of regulating the content of NPs in cells, which in turn influences, even decides, the toxicity of NPs to cells. A comprehensive understanding of the mechanisms and influencing factors of the exocytosis of NPs is not only essential for the safety assessment of NPs but also helpful for guiding the design of safe and highly effective NP-based materials for various purposes. Herein, we review the current status and progress of studies on the exocytosis of NPs. Firstly, we introduce experimental procedures and considerations. Then, exocytosis mechanisms/pathways are summarized with a detailed introduction of the main pathways (lysosomal and endoplasmic reticulum/Golgi pathway) and the role of microtubules; the patterns of exocytosis kinetics are presented and discussed. Subsequently, the influencing factors (initial content and location of intracellular NPs, physiochemical properties of NPs, cell type, and extracellular conditions) are fully discussed. Although there are inconsistent results, some rules are obtained, like smaller and charged NPs are more easily excreted. Finally, the challenges and future directions in the field have been discussed.
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Affiliation(s)
| | | | | | | | - Haifang Wang
- Institute of Nanochemistry and Nanobiology, Shanghai University, Shanghai 200444, China
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Li Z, Liu J, Ballard K, Liang C, Wang C. Low-dose albumin-coated gold nanorods induce intercellular gaps on vascular endothelium by causing the contraction of cytoskeletal actin. J Colloid Interface Sci 2023; 649:844-854. [PMID: 37390532 DOI: 10.1016/j.jcis.2023.06.154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Revised: 06/17/2023] [Accepted: 06/22/2023] [Indexed: 07/02/2023]
Abstract
Cytotoxicity of nanoparticles, typically evaluated by biochemical-based assays, often overlook the cellular biophysical properties such as cell morphology and cytoskeletal actin, which could serve as more sensitive indicators for cytotoxicity. Here, we demonstrate that low-dose albumin-coated gold nanorods (HSA@AuNRs), although being considered noncytotoxic in multiple biochemical assays, can induce intercellular gaps and enhance the paracellular permeability between human aortic endothelial cells (HAECs). The formation of intercellular gaps can be attributed to the changed cell morphology and cytoskeletal actin structures, as validated at the monolayer and single cell levels using fluorescence staining, atomic force microscopy, and super-resolution imaging. Molecular mechanistic study shows the caveolae-mediated endocytosis of HSA@AuNRs induces the calcium influx and activates actomyosin contraction in HAECs. Considering the important roles of endothelial integrity/dysfunction in various physiological/pathological conditions, this work suggests a potential adverse effect of albumin-coated gold nanorods on the cardiovascular system. On the other hand, this work also offers a feasible way to modulate the endothelial permeability, thus promoting drug and nanoparticle delivery across the endothelium.
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Affiliation(s)
- Zhengqiang Li
- Nanoscience and Biomedical Engineering, South Dakota School of Mines and Technology, 501 E St Joseph Street, Rapid City, SD 57701, USA; BioSystems Networks & Translational Research (BioSNTR), 501 E St Joseph Street, Rapid City, SD 57701, USA
| | - Jinyuan Liu
- Nanoscience and Biomedical Engineering, South Dakota School of Mines and Technology, 501 E St Joseph Street, Rapid City, SD 57701, USA; BioSystems Networks & Translational Research (BioSNTR), 501 E St Joseph Street, Rapid City, SD 57701, USA
| | - Katherine Ballard
- Nanoscience and Biomedical Engineering, South Dakota School of Mines and Technology, 501 E St Joseph Street, Rapid City, SD 57701, USA; BioSystems Networks & Translational Research (BioSNTR), 501 E St Joseph Street, Rapid City, SD 57701, USA
| | - Chao Liang
- Department of Anesthesiology, Zhongshan Hospital (Xiamen) Fudan University, Xiamen 361015, China; Department of Anesthesiology, Zhongshan Hospital, Fudan University, Shanghai 200032, China.
| | - Congzhou Wang
- Nanoscience and Biomedical Engineering, South Dakota School of Mines and Technology, 501 E St Joseph Street, Rapid City, SD 57701, USA; BioSystems Networks & Translational Research (BioSNTR), 501 E St Joseph Street, Rapid City, SD 57701, USA.
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Kowalik A, Majerek M, Mrowiec K, Solich J, Faron-Górecka A, Woźnicka O, Dziedzicka-Wasylewska M, Łukasiewicz S. Dopamine D 2 and Serotonin 5-HT 1A Dimeric Receptor-Binding Monomeric Antibody scFv as a Potential Ligand for Carrying Drugs Targeting Selected Areas of the Brain. Biomolecules 2022; 12:749. [PMID: 35740874 PMCID: PMC9221303 DOI: 10.3390/biom12060749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Accepted: 05/23/2022] [Indexed: 11/16/2022] Open
Abstract
Targeted therapy uses multiple ways of ensuring that the drug will be delivered to the desired site. One of these ways is an encapsulation of the drug and functionalization of the surface. Among the many molecules that can perform such a task, the present work focused on the antibodies of single-chain variable fragments (scFvs format). We studied scFv, which specifically recognizes the dopamine D2 and serotonin 5-HT1A receptor heteromers. The scFvD2-5-HT1A protein was analyzed biochemically and biologically, and the obtained results indicated that the antibody is properly folded and non-toxic and can be described as low-immunogenic. It is not only able to bind to the D2-5-HT1A receptor heteromer, but it also influences the cAMP signaling pathway and-when surfaced on nanogold particles-it can cross the blood-brain barrier in in vitro models. When administered to mice, it decreased locomotor activity, matching the effect induced by clozapine. Thus, we are strongly convinced that scFvD2-5-HT1A, which was a subject of the present investigation, is a promising targeting ligand with the potential for the functionalization of nanocarriers targeting selected areas of the brain.
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Affiliation(s)
- Agata Kowalik
- Department of Physical Biochemistry, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, 30-387 Krakow, Poland; (A.K.); (M.M.); (K.M.); (M.D.-W.)
| | - Mateusz Majerek
- Department of Physical Biochemistry, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, 30-387 Krakow, Poland; (A.K.); (M.M.); (K.M.); (M.D.-W.)
| | - Krzysztof Mrowiec
- Department of Physical Biochemistry, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, 30-387 Krakow, Poland; (A.K.); (M.M.); (K.M.); (M.D.-W.)
| | - Joanna Solich
- Department of Pharmacology, Maj Institute of Pharmacology, Polish Academy of Science, 31-343 Krakow, Poland; (J.S.); (A.F.-G.)
| | - Agata Faron-Górecka
- Department of Pharmacology, Maj Institute of Pharmacology, Polish Academy of Science, 31-343 Krakow, Poland; (J.S.); (A.F.-G.)
| | - Olga Woźnicka
- Department of Cell Biology and Imaging, Institute of Zoology and Biomedical Research, Jagiellonian University, 30-387 Krakow, Poland;
| | - Marta Dziedzicka-Wasylewska
- Department of Physical Biochemistry, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, 30-387 Krakow, Poland; (A.K.); (M.M.); (K.M.); (M.D.-W.)
- Department of Pharmacology, Maj Institute of Pharmacology, Polish Academy of Science, 31-343 Krakow, Poland; (J.S.); (A.F.-G.)
| | - Sylwia Łukasiewicz
- Department of Physical Biochemistry, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, 30-387 Krakow, Poland; (A.K.); (M.M.); (K.M.); (M.D.-W.)
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Al-Zoubi MS, Al-Zoubi RM. Nanomedicine Tactics in Cancer Treatment: Challenge and Hope. Crit Rev Oncol Hematol 2022; 174:103677. [DOI: 10.1016/j.critrevonc.2022.103677] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2022] [Revised: 03/31/2022] [Accepted: 03/31/2022] [Indexed: 10/18/2022] Open
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Wang T, Bi M, Wu J, Li X, Meng Y, Yin Z, Hang W. Single-Cell Mass Spectrometry Imaging of TiO2 Nanoparticles with Subcellular Resolution. CHINESE JOURNAL OF ANALYTICAL CHEMISTRY 2022. [DOI: 10.1016/j.cjac.2022.100085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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8
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Zhang F, Hou Y, Zhu M, Deng B, Zhao M, Zhu X, Sun Y, Chen D, Jiang C, Wang L, Chen C, Chen H, Chen H, Zheng H, Li W. Death Pathways of Cancer Cells Modulated by Surface Molecule Density on Gold Nanorods. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2021; 8:e2102666. [PMID: 34523247 PMCID: PMC8596106 DOI: 10.1002/advs.202102666] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Revised: 08/12/2021] [Indexed: 05/13/2023]
Abstract
Necrosis induces strong inflammation with undesirable implications in clinics compared with apoptosis. Fortunately, the switch between necrosis and apoptosis could be realized by tailoring the appropriate structural properties of gold nano rods (GNRs) that could precisely modulate cell death pathways. Herein, the intracellular interaction between GNRs and organelles is monitored and it is found that lysosomes dominates necrosis/apoptosis evoking. Then the surface molecule density of GNRs, which is first defined as ρsurf. molecule (Nsurf. molecules /(a × π × Diameter × Length)), mediates lysosome activities as the membrane permeabilization (LMP), the Cathepsin B and D release, the cross-talk between lysosome and different organelles, which selectively evokes apoptosis or necrosis and the production of TNF-α from macrophages. GNRs with small ρsurf. molecule mainly induce apoptosis, while with large ρsurf. molecule they greatly contribute to necrosis. Interestingly, necrosis can be suppressed by GNRs with higher ρsurf. molecule due to the overexpression of key protease caspase 8, which cleaves the RIP1-RIP3 complex and activates caspase 3 followed by necrosis to apoptosis transition. This investigation indicates that the ρsurf. molecule greatly affects the utility of nanomaterials and different structural properties of nanomaterials have different implications in clinics.
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Affiliation(s)
- Fulei Zhang
- Department of Nanomedicine & International Joint Cancer InstituteNaval Medical UniversityShanghai200433China
| | - Yi Hou
- Department of Nanomedicine & International Joint Cancer InstituteNaval Medical UniversityShanghai200433China
| | - Minhui Zhu
- Department of Otolaryngology Head & Neck SurgeryShanghai Changhai HospitalNaval Medical University168 Changhai RoadShanghai200433China
| | - Bo Deng
- State Key Laboratory of New Textile Materials and Advanced Processing TechnologiesWuhan430073China
| | - Mengxin Zhao
- Department of Nanomedicine & International Joint Cancer InstituteNaval Medical UniversityShanghai200433China
| | - Xiandi Zhu
- Department of Nanomedicine & International Joint Cancer InstituteNaval Medical UniversityShanghai200433China
| | - Yun Sun
- Department of Nanomedicine & International Joint Cancer InstituteNaval Medical UniversityShanghai200433China
| | - Di Chen
- Department of Nanomedicine & International Joint Cancer InstituteNaval Medical UniversityShanghai200433China
| | - Cheng Jiang
- Department of Nanomedicine & International Joint Cancer InstituteNaval Medical UniversityShanghai200433China
| | - Liming Wang
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and NanosafetyInstitute of High Energy Physics and National Center for Nanoscience and Technology of ChinaChinese Academy of SciencesBeijing100049China
| | - Chunying Chen
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and NanosafetyInstitute of High Energy Physics and National Center for Nanoscience and Technology of ChinaChinese Academy of SciencesBeijing100049China
| | - Huaiwen Chen
- Department of Otolaryngology Head & Neck SurgeryShanghai Changhai HospitalNaval Medical University168 Changhai RoadShanghai200433China
| | - Han Chen
- Department of General SurgeryNavy No.905 Hospital of Chinese People's Liberation ArmyNaval Medical UniversityShanghai200050China
| | - Hongliang Zheng
- Department of Otolaryngology Head & Neck SurgeryShanghai Changhai HospitalNaval Medical University168 Changhai RoadShanghai200433China
| | - Wei Li
- Department of Nanomedicine & International Joint Cancer InstituteNaval Medical UniversityShanghai200433China
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Liu J, Kang L, Ratnayake I, Ahrenkiel P, Smith S, Wang C. Targeting cancer cell adhesion molecule, CD146, with low-dose gold nanorods and mild hyperthermia disrupts actin cytoskeleton and cancer cell migration. J Colloid Interface Sci 2021; 601:556-569. [PMID: 34090032 PMCID: PMC8349892 DOI: 10.1016/j.jcis.2021.05.144] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2021] [Revised: 05/10/2021] [Accepted: 05/23/2021] [Indexed: 12/16/2022]
Abstract
Cluster of differentiation 146 (CD146), a cancer cell adhesion molecule, is over-expressed on the surfaces of melanoma, breast, ovarian, and prostate cancer cells, and its high expression indicates the migration tendency of these cancer cells and poor patient prognosis. Here, we hypothesize that targeting the CD146 with low-dose gold nanorods combined with mild hyperthermia can stop the migration of these cancer cells. Two metastatic cancer cells including a melanoma and a breast cancer cell line are selected as the model systems. Cell migration assays show that the migration of both cell lines can be completely stopped by the treatment. Atomic force microscopy and super resolution fluorescence microscopy reveal the alterations of actin cytoskeleton and cell morphology correspond to the inhibited cell migration. Further mechanistic analysis indicates the treatment disrupts the actin cytoskeleton by a synergistic mechanism including depleting membrane CD146 and interfering ezrin-radixin-moesin phosphorylation. As a result, we believe targeting CD146 with low-dose gold nanorods and mild hyperthermia could be a versatile, effective, and safe approach for stopping cancer metastasis. More broadly, the concept of targeting cancer cell surface markers that connect the underlying actin cytoskeleton, offers enormous potential in treating cancer metastasis, which accounts for more than 90% of cancer-associated mortality.
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Affiliation(s)
- Jinyuan Liu
- Nanoscience and Nanoengineering, South Dakota School of Mines and Technology, 501 East Saint Joseph Street, Rapid City, SD 57701, USA; BioSystems Networks & Translational Research (BioSNTR), 501 East Saint Joseph Street, Rapid City, SD 57701, USA
| | - Lin Kang
- Nanoscience and Nanoengineering, South Dakota School of Mines and Technology, 501 East Saint Joseph Street, Rapid City, SD 57701, USA; BioSystems Networks & Translational Research (BioSNTR), 501 East Saint Joseph Street, Rapid City, SD 57701, USA
| | - Ishara Ratnayake
- Nanoscience and Nanoengineering, South Dakota School of Mines and Technology, 501 East Saint Joseph Street, Rapid City, SD 57701, USA; BioSystems Networks & Translational Research (BioSNTR), 501 East Saint Joseph Street, Rapid City, SD 57701, USA
| | - Phil Ahrenkiel
- Nanoscience and Nanoengineering, South Dakota School of Mines and Technology, 501 East Saint Joseph Street, Rapid City, SD 57701, USA; BioSystems Networks & Translational Research (BioSNTR), 501 East Saint Joseph Street, Rapid City, SD 57701, USA
| | - Steve Smith
- Nanoscience and Nanoengineering, South Dakota School of Mines and Technology, 501 East Saint Joseph Street, Rapid City, SD 57701, USA; BioSystems Networks & Translational Research (BioSNTR), 501 East Saint Joseph Street, Rapid City, SD 57701, USA
| | - Congzhou Wang
- Nanoscience and Nanoengineering, South Dakota School of Mines and Technology, 501 East Saint Joseph Street, Rapid City, SD 57701, USA; BioSystems Networks & Translational Research (BioSNTR), 501 East Saint Joseph Street, Rapid City, SD 57701, USA.
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Sidebottom RB, Allison JC, Aulwes EF, Broder BA, Freeman MS, Magnelind PE, Mariam FG, Merrill FE, Neukirch LP, Schurman T, Sinnis J, Tang Z, Tupa D, Tybo JL, Wilde CH, Espy M. Contrast-enhanced proton radiographic sensitivity limits for tumor detection. J Med Imaging (Bellingham) 2021; 8:053501. [PMID: 34708145 DOI: 10.1117/1.jmi.8.5.053501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Accepted: 10/11/2021] [Indexed: 11/14/2022] Open
Abstract
Purpose: Proton radiography may guide proton therapy cancer treatments with beam's-eye-view anatomical images and a proton-based estimation of proton stopping power. However, without contrast enhancement, proton radiography will not be able to distinguish tumor from tissue. To provide this contrast, functionalized, high- Z nanoparticles that specifically target a tumor could be injected into a patient before imaging. We conducted this study to understand the ability of gold, as a high- Z , biologically compatible tracer, to differentiate tumors from surrounding tissue. Approach: Acrylic and gold phantoms simulate a tumor tagged with gold nanoparticles (AuNPs). Calculations correlate a given thickness of gold to levels of tumor AuNP uptake reported in the literature. An identity, × 3 , and × 7 proton magnifying lens acquired lens-refocused proton radiographs at the 800-MeV LANSCE proton beam. The effects of gold in the phantoms, in terms of percent density change, were observed as changes in measured transmission. Variable areal densities of acrylic modeled the thickness of the human body. Results: A 1 - μ m -thick gold strip was discernible within 1 cm of acrylic, an areal density change of 0.2%. Behind 20 cm of acrylic, a 40 - μ m gold strip was visible. A 1-cm-diameter tumor tagged with 1 × 10 5 50-nm AuNPs per cell has an amount of contrast agent embedded within it that is equivalent to a 65 - μ m thickness of gold, an areal density change of 0.63% in a tissue thickness of 20 cm, which is expected to be visible in a typical proton radiograph. Conclusions: We indicate that AuNP-enhanced proton radiography might be a feasible technology to provide image-guidance to proton therapy, potentially reducing off-target effects and sparing nearby tissue. These data can be used to develop treatment plans and clinical applications can be derived from the simulations.
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Affiliation(s)
| | - Jason C Allison
- Los Alamos National Laboratory, Los Alamos, New Mexico, United States
| | - Ethan F Aulwes
- Los Alamos National Laboratory, Los Alamos, New Mexico, United States
| | - Brittany A Broder
- Los Alamos National Laboratory, Los Alamos, New Mexico, United States
| | - Matthew S Freeman
- Los Alamos National Laboratory, Los Alamos, New Mexico, United States
| | - Per E Magnelind
- Los Alamos National Laboratory, Los Alamos, New Mexico, United States
| | - Fesseha G Mariam
- Los Alamos National Laboratory, Los Alamos, New Mexico, United States
| | - Frank E Merrill
- Los Alamos National Laboratory, Los Alamos, New Mexico, United States
| | - Levi P Neukirch
- Los Alamos National Laboratory, Los Alamos, New Mexico, United States
| | - Tamsen Schurman
- Los Alamos National Laboratory, Los Alamos, New Mexico, United States
| | - James Sinnis
- Los Alamos National Laboratory, Los Alamos, New Mexico, United States
| | - Zhaowen Tang
- Los Alamos National Laboratory, Los Alamos, New Mexico, United States
| | - Dale Tupa
- Los Alamos National Laboratory, Los Alamos, New Mexico, United States
| | - Joshua L Tybo
- Los Alamos National Laboratory, Los Alamos, New Mexico, United States
| | - Carl H Wilde
- Los Alamos National Laboratory, Los Alamos, New Mexico, United States
| | - Michelle Espy
- Los Alamos National Laboratory, Los Alamos, New Mexico, United States
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11
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Zhang W, Du B, Gao M, Tung CH. A Hybrid Nanogel to Preserve Lysosome Integrity for Fluorescence Imaging. ACS NANO 2021; 15:16442-16451. [PMID: 34612039 DOI: 10.1021/acsnano.1c05864] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Fluorescence imaging of lysosomes provides a powerful tool to probe the lysosome physiology in living cells, yet the continuous light exposure inevitably causes lysosome damage and phototoxicity, which remains a formidable challenge. Here the long-term lysosome tracking with minimized photodamage was realized using a multifunctional nanoprobe, a platinum nanoparticle, and a quinacrine co-loaded nanogel. To construct the hybrid nanogel, cisplatin first functioned as cross-linker to withhold all components and then was reduced to a platinum nanoparticle in situ by ethanol. The platinum nanoparticle enabled a long-term quinacrine fluorescence imaging of lysosome by scavenging the light induced reactive oxygen species which could damage lysosomal membranes.
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Affiliation(s)
- Weiqi Zhang
- State Key Laboratory of Medical Molecular Biology & Department of Biomedical Engineering, Institute of Basic Medical Sciences Chinese Academy of Medical Sciences, School of Basic Medicine Peking Union Medical College, Beijing 100005, People's Republic of China
- Molecular Imaging Innovations Institute, Department of Radiology, Weill Cornell Medicine, New York, New York 10065, United States
| | - Baoji Du
- Molecular Imaging Innovations Institute, Department of Radiology, Weill Cornell Medicine, New York, New York 10065, United States
| | - Menghan Gao
- State Key Laboratory of Medical Molecular Biology & Department of Biomedical Engineering, Institute of Basic Medical Sciences Chinese Academy of Medical Sciences, School of Basic Medicine Peking Union Medical College, Beijing 100005, People's Republic of China
| | - Ching-Hsuan Tung
- Molecular Imaging Innovations Institute, Department of Radiology, Weill Cornell Medicine, New York, New York 10065, United States
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Zamora-Perez P, Pelaz B, Tsoutsi D, Soliman MG, Parak WJ, Rivera-Gil P. Hyperspectral-enhanced dark field analysis of individual and collective photo-responsive gold-copper sulfide nanoparticles. NANOSCALE 2021; 13:13256-13272. [PMID: 34477734 DOI: 10.1039/d0nr08256b] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
We used hyperspectral-enhanced dark field microscopy for studying physicochemical changes in biomaterials by tracking their unique spectral signatures along their pathway through different biological environments typically found in any biomedical application. We correlate these spectral signatures with discrete environmental features causing changes in nanoparticles' physicochemical properties. We use this correlation to track the nanoparticles intracellularly and to assess the impact of these changes on their functionality. We focus on one example of a photothermal nanocomposite, i.e., polymer-coated gold/copper sulfide nanoparticles, because their performance depends on their localized surface plasmon peak, which is highly sensitive to environmental changes. We found spectral differences both in the dependence of time and discrete environmental factors, affecting the range of illumination wavelengths that can be used to activate the functionality of these types of nanoparticles. The presence of proteins (protein corona) and the increase in ionic strength induce a spectral broadening towards the NIR region which we associated with nanoparticles' agglomeration. In acidic environments, such as that of the lysosome, a red shift was also observed in addition to a decrease in the scattering intensity probably associated with a destabilization of the proteins and/or the change in the net charge of the polymer around the nanoparticles. We observed a loss of the photo-excitation potential of those nanoparticles exposed to acidic conditions in the <600 nm spectral rage. In a similar manner, ageing induces a transitioning from a broad multipeak spectrum to a distinct shoulder with time (up to 8 months) with the loss of spectral contribution in the 450-600 nm range. Hence, a fresh preparation of nanoparticles before their application would be recommended for an optimal performance. We highlight the impact of ageing and the acidic environment on the responsiveness of this type of plasmonic nanoparticle. Regardless of the spectral differences found, polymer-coated gold/copper sulfide nanoparticles retained their photothermal response as demonstrated in vitro upon two-photon irradiation. This could be ascribed to their robust geometry provided by the polymer coating. These results should be useful to rationally design plasmonic photothermal probes.
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Affiliation(s)
- Paula Zamora-Perez
- Integrative Biomedical Materials and Nanomedicine Lab, Department of Experimental and Health Sciences (DCEXS), Pompeu Fabra University (UPF), Biomedical Research Park (PRBB), carrer Doctor Aiguader 88, 08003 Barcelona, Spain.
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Rahman S, Kumar V, Kumar A, Abdullah TS, Rather IA, Jan AT. Molecular Perspective of Nanoparticle Mediated Therapeutic Targeting in Breast Cancer: An Odyssey of Endoplasmic Reticulum Unfolded Protein Response (UPR ER) and Beyond. Biomedicines 2021; 9:biomedicines9060635. [PMID: 34199484 PMCID: PMC8229605 DOI: 10.3390/biomedicines9060635] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 05/26/2021] [Accepted: 05/28/2021] [Indexed: 12/21/2022] Open
Abstract
Breast cancer (BC) is the second most frequent cause of death among women. Representing a complex and heterogeneous type of cancer, its occurrence is attributed by both genetic (gene mutations, e.g., BRCA1, BRCA2) and non-genetic (race, ethnicity, etc.) risk factors. The effectiveness of available treatment regimens (small molecules, cytotoxic agents, and inhibitors) decreased due to their poor penetration across biological barriers, limited targeting, and rapid body clearance along with their effect on normal resident cells of bone marrow, gastrointestinal tract, and hair follicles. This significantly reduced their clinical outcomes, which led to an unprecedented increase in the number of cases worldwide. Nanomedicine, a nano-formulation of therapeutics, emerged as a versatile delivering module for employment in achieving the effective and target specific delivery of pharmaceutical payloads. Adoption of nanotechnological approaches in delivering therapeutic molecules to target cells ensures not only reduced immune response and toxicity, but increases the stability of therapeutic entities in the systemic circulation that averts their degradation and as such increased extravasations and accumulation via enhanced permeation and the retention (EPR) effect in target tissues. Additionally, nanoparticle (NP)-induced ER stress, which enhances apoptosis and autophagy, has been utilized as a combative strategy in the treatment of cancerous cells. As nanoparticles-based avenues have been capitalized to achieve better efficacy of the new genera of therapeutics with enhanced specificity and safety, the present study is aimed at providing the fundamentals of BC, nanotechnological modules (organic, inorganic, and hybrid) employed in delivering different therapeutic molecules, and mechanistic insights of nano-ER stress induced apoptosis and autophagy with a perspective of exploring this avenue for use in the nano-toxicological studies. Furthermore, the current scenario of USA FDA approved nano-formulations and the future perspective of nanotechnological based interventions to overcome the existing challenges are also discussed.
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Affiliation(s)
- Safikur Rahman
- Department of Botany, Munshi Singh College, BR Ambedkar Bihar University, Muzaffarpur 845401, India;
| | - Vijay Kumar
- Department of Biotechnology, Yeungnam University, Gyeongsan 38541, Korea;
| | - Anuj Kumar
- School of Chemical Engineering, Yeungnam University, Gyeongsan 38541, Korea;
| | - Tasduq S. Abdullah
- Council of Scientific and Industrial Research–Indian Institute of Integrative Medicine (CSIR–IIIM), Jammu 180001, India;
| | - Irfan A. Rather
- Department of Biological Sciences, Faculty of Science, King Abdulaziz University (KAU), P.O. Box 80141, Jeddah 21589, Saudi Arabia
- Correspondence: (I.A.R.); (A.T.J.)
| | - Arif Tasleem Jan
- School of Biosciences and Biotechnology, Baba Ghulam Shah Badshah University, Rajouri 185234, India
- Correspondence: (I.A.R.); (A.T.J.)
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Nakhla S, Rahawy A, Salam MAE, Shalaby T, Zaghloul M, El-Abd E. Radiosensitizing and Phototherapeutic Effects of AuNPs are Mediated by Differential Noxa and Bim Gene Expression in MCF-7 Breast Cancer Cell Line. IEEE Trans Nanobioscience 2020; 20:20-27. [PMID: 33017288 DOI: 10.1109/tnb.2020.3028562] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
To compare the apoptotic efficiency of AuNPs, ionizing and non-ionizing radiotherapy, phototherapy, and AuNPs-ionizing-radiotherapy), MCF-7 cells were used as a model for luminal B subtypes of breast carcinoma. A mixture of AuNPs [66% of Au-nanospheres (AuNSs) and 34% of Au-nanorods (AuNRs)] was synthesized and characterized by optical spectroscopy, zeta potential, and transmission electron microscopy (TEM). MCF-7 were divided into six groups (triplicates); after each treatment, cell viability was tested by MTT assay and relative gene expression levels of Bim and Noxa proapoptotic markers were assayed by qRT-PCR. A dose-dependent significant reduction in cell viability of MCF-7 was detected by all examined treatment protocols. Lower viability detected at extended exposure (48 hours) to AuNPs ( [Formula: see text]/ml) was mediated by the upregulation of Noxa gene expression. AuNS and AuNR in vitro PTTs were mediated by differential expression of Bim and Noxa while AuNPs mixture had a combined effect on both Bim and Noxa. Cellular recovery was observed two days-post x-rays irradiation at does < 3 Gy. AuNPs showed dose enhancement factor (DEF) > 12 indicating a high radiosensitizing effect that was partially mediated by Noxa. In conclusion, AuNPs combined therapies exert better anti-proliferative effects via differential regulation of Noxa and Bim gene expressions.
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Hong Y, Han Y, Wu J, Zhao X, Cheng J, Gao G, Qian Q, Wang X, Cai W, Zreiqat H, Feng D, Xu J, Cui D. Chitosan modified Fe 3O 4/KGN self-assembled nanoprobes for osteochondral MR diagnose and regeneration. Theranostics 2020; 10:5565-5577. [PMID: 32373231 PMCID: PMC7196312 DOI: 10.7150/thno.43569] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2020] [Accepted: 03/27/2020] [Indexed: 01/07/2023] Open
Abstract
Chondral and osteochondral defects caused by trauma or pathological changes, commonly progress into total joint degradation, even resulting in disability. The cartilage restoration is a great challenge because of its avascularity and limited proliferative ability. Additionally, precise diagnosis using non-invasive detection techniques is challenging, which increases problems associated with chondral disease treatment. Methods: To achieve a theranostic goal, we used an integrated strategy that relies on exploiting a multifunctional nanoprobe based on chitosan-modified Fe3O4 nanoparticles, which spontaneously self-assemble with the oppositely charged small molecule growth factor, kartogenin (KGN). This nanoprobe was used to obtain distinctively brighter T2-weighted magnetic resonance (MR) imaging, allowing its use as a positive contrast agent, and could be applied to obtain accurate diagnosis and osteochondral regeneration therapy. Results: This nanoprobe was first investigated using adipose tissue-derived stem cells (ADSCs), and was found to be a novel positive contrast agent that also plays a significant role in stimulating ADSCs differentiation into chondrocytes. This self-assembled probe was not only biocompatible both in vitro and in vivo, contributing to cellular internalization, but was also used to successfully make distinction of normal/damaged tissue in T2-weighted MR imaging. This novel combination was systematically shown to be biosafe via the decrement of apparent MR signals and elimination of ferroferric oxide over a 12-week regeneration period. Conclusion: Here, we established a novel method for osteochondral disease diagnosis and reconstruction. Using the Fe3O4-CS/KGN nanoprobe, it is easy to distinguish the defect position, and it could act as a tool for dynamic observation as well as a stem cell-based therapy for directionally chondral differentiation.
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Affiliation(s)
- Yuping Hong
- Institute of Nano Biomedicine and Engineering, Shanghai Engineering Research Centre for Intelligent Diagnosis and Treatment Instrument, Department of Instrument Science and Engineering, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, 800 Dongchuan RD, Shanghai 200240, PR China
| | - Yaguang Han
- Department of Joint Surgery and Sports Medicine, Changzheng Hospital, Second Military Medical University, 415 Fengyang RD, Shanghai 200003, PR China
| | - Jun Wu
- Department of Joint Surgery and Sports Medicine, Changzheng Hospital, Second Military Medical University, 415 Fengyang RD, Shanghai 200003, PR China
| | - Xinxin Zhao
- Department of Radiology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, 160 Pujian RD, Shanghai 200127, PR China
| | - Jin Cheng
- Institute of Nano Biomedicine and Engineering, Shanghai Engineering Research Centre for Intelligent Diagnosis and Treatment Instrument, Department of Instrument Science and Engineering, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, 800 Dongchuan RD, Shanghai 200240, PR China
| | - Guo Gao
- Institute of Nano Biomedicine and Engineering, Shanghai Engineering Research Centre for Intelligent Diagnosis and Treatment Instrument, Department of Instrument Science and Engineering, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, 800 Dongchuan RD, Shanghai 200240, PR China
| | - Qirong Qian
- Department of Joint Surgery and Sports Medicine, Changzheng Hospital, Second Military Medical University, 415 Fengyang RD, Shanghai 200003, PR China
| | - Xiuying Wang
- School of Computer Science, Faculty of Engineering, University of Sydney, NSW 2006, Australia
| | - Weidong Cai
- School of Computer Science, Faculty of Engineering, University of Sydney, NSW 2006, Australia
| | - Hala Zreiqat
- Murray Maxwell Biomechanics Laboratory, Kolling Institute, Royal North Shore Hospital, University of Sydney, NSW 2065, Australia
| | - Dagan Feng
- School of Computer Science, Faculty of Engineering, University of Sydney, NSW 2006, Australia
| | - Jianrong Xu
- Department of Radiology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, 160 Pujian RD, Shanghai 200127, PR China
| | - Daxiang Cui
- Institute of Nano Biomedicine and Engineering, Shanghai Engineering Research Centre for Intelligent Diagnosis and Treatment Instrument, Department of Instrument Science and Engineering, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, 800 Dongchuan RD, Shanghai 200240, PR China
- Institute of Nano Biomedicine, National Engineering Center for Nanotechnology, 28 Jianchuan East RD, Shanghai 200241, PR China
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Ahijado-Guzmán R, Sánchez-Arribas N, Martínez-Negro M, González-Rubio G, Santiago-Varela M, Pardo M, Piñeiro A, López-Montero I, Junquera E, Guerrero-Martínez A. Intercellular Trafficking of Gold Nanostars in Uveal Melanoma Cells for Plasmonic Photothermal Therapy. NANOMATERIALS 2020; 10:nano10030590. [PMID: 32213846 PMCID: PMC7153714 DOI: 10.3390/nano10030590] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Revised: 03/04/2020] [Accepted: 03/11/2020] [Indexed: 01/11/2023]
Abstract
Efficient plasmonic photothermal therapies (PPTTs) using non-harmful pulse laser irradiation at the near-infrared (NIR) are a highly sought goal in nanomedicine. These therapies rely on the use of plasmonic nanostructures to kill cancer cells while minimizing the applied laser power density. Cancer cells have an unsettled capacity to uptake, retain, release, and re-uptake gold nanoparticles, thus offering enormous versatility for research. In this work, we have studied such cell capabilities for nanoparticle trafficking and its impact on the effect of photothermal treatments. As our model system, we chose uveal (eye) melanoma cells, since laser-assisted eye surgery is routinely used to treat glaucoma and cataracts, or vision correction in refractive surgery. As nanostructure, we selected gold nanostars (Au NSs) due to their high photothermal efficiency at the near-infrared (NIR) region of the electromagnetic spectrum. We first investigated the photothermal effect on the basis of the dilution of Au NSs induced by cell division. Using this approach, we obtained high PPTT efficiency after several cell division cycles at an initial low Au NS concentration (pM regime). Subsequently, we evaluated the photothermal effect on account of cell division upon mixing Au NS-loaded and non-loaded cells. Upon such mixing, we observed trafficking of Au NSs between loaded and non-loaded cells, thus achieving effective PPTT after several division cycles under low irradiation conditions (below the maximum permissible exposure threshold of skin). Our study reveals the ability of uveal melanoma cells to release and re-uptake Au NSs that maintain their plasmonic photothermal properties throughout several cell division cycles and re-uptake. This approach may be readily extrapolated to real tissue and even to treat in situ the eye tumor itself. We believe that our method can potentially be used as co-therapy to disperse plasmonic gold nanostructures across affected tissues, thus increasing the effectiveness of classic PPTT.
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Affiliation(s)
- Rubén Ahijado-Guzmán
- Departamento de Química Física, Universidad Complutense de Madrid, Avenida Complutense s/n, 28040 Madrid, Spain; (N.S.-A.); (M.M.-N.); (G.G.-R.); (I.L.-M.); (E.J.)
- Correspondence: (R.A.-G.); (A.G.-M.); Tel.: +34-934-4274 (A.G.-M.)
| | - Natalia Sánchez-Arribas
- Departamento de Química Física, Universidad Complutense de Madrid, Avenida Complutense s/n, 28040 Madrid, Spain; (N.S.-A.); (M.M.-N.); (G.G.-R.); (I.L.-M.); (E.J.)
| | - María Martínez-Negro
- Departamento de Química Física, Universidad Complutense de Madrid, Avenida Complutense s/n, 28040 Madrid, Spain; (N.S.-A.); (M.M.-N.); (G.G.-R.); (I.L.-M.); (E.J.)
| | - Guillermo González-Rubio
- Departamento de Química Física, Universidad Complutense de Madrid, Avenida Complutense s/n, 28040 Madrid, Spain; (N.S.-A.); (M.M.-N.); (G.G.-R.); (I.L.-M.); (E.J.)
| | - María Santiago-Varela
- Instituto de Investigación Sanitaria de Santiago (IDIS), Xerencia de Xestión Integrada de Santiago (XXIS/SERGAS), Hospital Clínico Universitario de Santiago, Travesía da Choupana s/n, 15706 Santiago de Compostela, Spain; (M.S.-V.); (M.P.); (A.P.)
| | - María Pardo
- Instituto de Investigación Sanitaria de Santiago (IDIS), Xerencia de Xestión Integrada de Santiago (XXIS/SERGAS), Hospital Clínico Universitario de Santiago, Travesía da Choupana s/n, 15706 Santiago de Compostela, Spain; (M.S.-V.); (M.P.); (A.P.)
| | - Antonio Piñeiro
- Instituto de Investigación Sanitaria de Santiago (IDIS), Xerencia de Xestión Integrada de Santiago (XXIS/SERGAS), Hospital Clínico Universitario de Santiago, Travesía da Choupana s/n, 15706 Santiago de Compostela, Spain; (M.S.-V.); (M.P.); (A.P.)
| | - Iván López-Montero
- Departamento de Química Física, Universidad Complutense de Madrid, Avenida Complutense s/n, 28040 Madrid, Spain; (N.S.-A.); (M.M.-N.); (G.G.-R.); (I.L.-M.); (E.J.)
- Instituto de Investigación Sanitaria Hospital 12 de Octubre (imas12), Avda. Córdoba s/n, 28041 Madrid, Spain
| | - Elena Junquera
- Departamento de Química Física, Universidad Complutense de Madrid, Avenida Complutense s/n, 28040 Madrid, Spain; (N.S.-A.); (M.M.-N.); (G.G.-R.); (I.L.-M.); (E.J.)
| | - Andrés Guerrero-Martínez
- Departamento de Química Física, Universidad Complutense de Madrid, Avenida Complutense s/n, 28040 Madrid, Spain; (N.S.-A.); (M.M.-N.); (G.G.-R.); (I.L.-M.); (E.J.)
- Correspondence: (R.A.-G.); (A.G.-M.); Tel.: +34-934-4274 (A.G.-M.)
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Chuang YC, Hsia Y, Chu CH, Lin LJ, Sivasubramanian M, Lo LW. Precision control of the large-scale green synthesis of biodegradable gold nanodandelions as potential radiotheranostics. Biomater Sci 2019; 7:4720-4729. [PMID: 31495835 DOI: 10.1039/c9bm00897g] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Herein, we report a new type of biodegradable, high surface-area gold nanodandelions (GNDs). This report possesses important features and some are the first of its kind: (1) the large scale green synthesis of GNDs with high monodispersity and a circa 100% yield with consistent chemistry, manufacturing and controls (CMC); (2) cellular/physiological degradability of GNDs leading to its disassembly into debris, which is indicative of the potential for possible body clearance; (3) precision control of the chemicophysical properties of the GNDs including shape, petal number and size, all can be judiciously fine-tuned by the synthetic parameters; (4) highly efficient radiotheranostics of GNDs encompassing better enhanced computed tomography (CT) contrast and pronounced X-ray induced reactive oxygen species (ROS) generation than conventional spherical gold nanoparticles (AuNP). It is noteworthy that the GNDs demonstrate a unique combinational effect of radiosensitization (production of superoxide anions and hydroxyl radicals) and type II photodynamic interaction (generation of singlet oxygen). Given the above, our reported GNDs are promising in clinical translation as radiotheranostics.
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Affiliation(s)
- Yao-Chen Chuang
- Institute of Biomedical Engineering and Nanomedicine, National Health Research Institutes, Zhunan, Miaoli 35053, Taiwan.
| | - Yu Hsia
- Institute of Biomedical Engineering and Nanomedicine, National Health Research Institutes, Zhunan, Miaoli 35053, Taiwan. and Institute of Biotechnology, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Chia-Hui Chu
- Institute of Biomedical Engineering and Nanomedicine, National Health Research Institutes, Zhunan, Miaoli 35053, Taiwan.
| | - Li-Jie Lin
- Institute of Biomedical Engineering and Nanomedicine, National Health Research Institutes, Zhunan, Miaoli 35053, Taiwan.
| | - Maharajan Sivasubramanian
- Institute of Biomedical Engineering and Nanomedicine, National Health Research Institutes, Zhunan, Miaoli 35053, Taiwan.
| | - Leu-Wei Lo
- Institute of Biomedical Engineering and Nanomedicine, National Health Research Institutes, Zhunan, Miaoli 35053, Taiwan.
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Francisco V, Lino M, Ferreira L. A near infrared light-triggerable modular formulation for the delivery of small biomolecules. J Nanobiotechnology 2019; 17:97. [PMID: 31526377 PMCID: PMC6747754 DOI: 10.1186/s12951-019-0530-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2019] [Accepted: 09/10/2019] [Indexed: 12/02/2022] Open
Abstract
Background Externally triggered drug delivery systems hold considerable promise for improving the treatment of many diseases, in particular, diseases where the spatial–temporal release of the drug is critical to maximize their biological effect whilst minimizing undesirable, off-target, side effects. Results Herein, we developed a light-triggerable formulation that takes advantage of host–guest chemistry to complex drugs functionalized with a guest molecule and release it after exposure to near infrared (NIR) light due to the disruption of the non-covalent host–guest interactions. The system is composed by a gold nanorod (AuNR), which generates plasmonic heat after exposure to NIR, a thin layer of hyaluronic acid immobilized to the AuNR upon functionalization with a macrocycle, cucurbit[6]uril (CB[6]), and a drug functionalized with a guest molecule that interacts with the macrocycle. For proof of concept, we have used this formulation for the intracellular release of a derivative of retinoic acid (RA), a molecule known to play a key role in tissue development and homeostasis as well as during cancer treatment. We showed that the formulation was able to conjugate approximately 65 μg of RA derivative per mg of CB[6] @AuNR and released it within a few minutes after exposure to a NIR laser. Importantly, the bioactivity of RA released from the formulation was demonstrated in a reporter cell line expressing luciferase under the control of the RA receptor. Conclusions This NIR light-triggered supramolecular-based modular platform holds great promise for theranostic applications.
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Affiliation(s)
- Vitor Francisco
- CNC-Center for Neurosciences and Cell Biology, University of Coimbra, 3004-517, Coimbra, Portugal
| | - Miguel Lino
- Faculty of Medicine, University of Coimbra, 3000-548, Coimbra, Portugal
| | - Lino Ferreira
- CNC-Center for Neurosciences and Cell Biology, University of Coimbra, 3004-517, Coimbra, Portugal. .,Faculty of Medicine, University of Coimbra, 3000-548, Coimbra, Portugal.
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Yang XJ, Li XL, Chen HY, Xu JJ. NIR-Activated Spatiotemporally Controllable Nanoagent for Achieving Synergistic Gene-Chemo-Photothermal Therapy in Tumor Ablation. ACS APPLIED BIO MATERIALS 2019; 2:2994-3001. [DOI: 10.1021/acsabm.9b00329] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Xue-Jiao Yang
- State Key Laboratory of Analytical Chemistry for Life Science and Collaborative Innovation Center of Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Xiang-Ling Li
- State Key Laboratory of Analytical Chemistry for Life Science and Collaborative Innovation Center of Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Hong-Yuan Chen
- State Key Laboratory of Analytical Chemistry for Life Science and Collaborative Innovation Center of Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Jing-Juan Xu
- State Key Laboratory of Analytical Chemistry for Life Science and Collaborative Innovation Center of Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
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20
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Exocytosis - a putative road-block in nanoparticle and nanocomplex mediated gene delivery. J Control Release 2019; 303:67-76. [DOI: 10.1016/j.jconrel.2019.04.012] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2019] [Revised: 04/08/2019] [Accepted: 04/09/2019] [Indexed: 12/14/2022]
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21
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Sun X, Jiang L, Wang C, Sun S, Mei L, Huang L. Systematic investigation of intracellular trafficking behavior of one-dimensional alumina nanotubes. J Mater Chem B 2019; 7:2043-2053. [PMID: 32254808 DOI: 10.1039/c8tb03349h] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Nanotube materials exhibit high drug loading capacity and controlled drug release properties, providing new opportunities for drug delivery. However, the intracellular trafficking paths of 1-dimensional (1D) nanostructured materials are poorly understood compared to their spherical counterparts, impeding the broad application of 1D materials as drug carriers. Here, we report the intracellular trafficking mechanism of nontoxic and biocompatible nanomaterials called anodic alumina nanotubes (AANTs), a model for 1D materials with a geometry that can be precisely engineered. The results indicated that AANTs enter the cells mainly by caveolin endocytosis and micropinocytosis and that cells use a novel macropinocytosis-late endosomes (LEs)-lysosomes route to transport AANTs. Moreover, liposomes (marked by DsRed-Rab18) are fully involved in the classical pathway of early endosomes (EEs)/LEs developing into lysosomes. The AANTs were delivered to the cells via two pathways: slow endocytosis recycling and GLUT4 exocytosis vesicles. The AANTs also induced intracellular autophagy and then degraded via the endolysosomal pathway. Blocking endolysosomal pathways using autophagy inhibitors prevented the degradation of AANTs through lysosomes. Our results add new insights into the pathways and mechanisms of intracellular trafficking of AANTs, and suggest that intracellular trafficking and lysosomal degradation are highly interdependent and important for efficient drug delivery, and should be evaluated together for drug carrier development.
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Affiliation(s)
- Xiangyu Sun
- Department of Physics, Tsinghua University, Beijing 10008, China.
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Cancino-Bernardi J, Marangoni VS, Besson JCF, Cancino MEC, Natali MRM, Zucolotto V. Gold-based nanospheres and nanorods particles used as theranostic agents: An in vitro and in vivo toxicology studies. CHEMOSPHERE 2018; 213:41-52. [PMID: 30212718 DOI: 10.1016/j.chemosphere.2018.09.012] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Revised: 08/09/2018] [Accepted: 09/02/2018] [Indexed: 06/08/2023]
Abstract
The adverse effect of gold-based nanoparticles is still an open question since it depends on several factors as shape, surface charge or route of administration. In this study, we investigated the influence of shape and human serum albumin (HSA) coating on the adverse effects of spherical (AuNP) and nanorods (AuNR) gold-based particles. F C3H (fibroblast) and HTC (hepatocellular carcinoma) cell lines both from liver were exposed to 25, 75 and 125 μg mL-1, which correspond to 109 NP mL-1. For in vivo studies, Wistar rats received these materials by oral administration in doses of 10 μg kg-1 or 40 μg kg-1. Systemic toxicity was verified after 24 h and 48 h by morphological analysis, blood parameters and myeloperoxidase enzyme activity. Our results revealed that HSA corona does not influence totally the pathway of interactions between AuNP and AuNR. In vitro results evidenced that AuNP can decrease in at least 50% viability of F C3H and cell adhesion of HTC, but corona significantly overcomes these effects. No differences between shape or corona were observed in function of cell lines. In vivo studies showed that 40 μg kg-1 of AuNP-HSA caused an enhancement of the myeloperoxidase response indicating inflammatory processes. An increase from 40% to 80% on alkaline phosphatase levels were found for all groups. Our findings suggested that gold-based particles coated or not with HSA do not cause expressive adverse effects on in vitro or in vivo systems, and their oral administration cannot cause a systemic effect in the experimental conditions used here.
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Affiliation(s)
- J Cancino-Bernardi
- Nanomedicine and Nanotoxicology Group, Physics Institute of São Carlos, University of São Paulo, CP 369, 13560-970, São Carlos, SP, Brazil.
| | - V S Marangoni
- Nanomedicine and Nanotoxicology Group, Physics Institute of São Carlos, University of São Paulo, CP 369, 13560-970, São Carlos, SP, Brazil
| | - J C F Besson
- Morphologic Science Department, State University of Maringá, CP, 87020-900, Maringá, PR, Brazil
| | - M E C Cancino
- Morphologic Science Department, State University of Maringá, CP, 87020-900, Maringá, PR, Brazil
| | - M R M Natali
- Morphologic Science Department, State University of Maringá, CP, 87020-900, Maringá, PR, Brazil
| | - V Zucolotto
- Nanomedicine and Nanotoxicology Group, Physics Institute of São Carlos, University of São Paulo, CP 369, 13560-970, São Carlos, SP, Brazil
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Reifarth M, Schubert US, Hoeppener S. Considerations for the Uptake Characteristic of Inorganic Nanoparticles into Mammalian Cells-Insights Gained by TEM Investigations. ACTA ACUST UNITED AC 2018. [DOI: 10.1002/adbi.201700254] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Martin Reifarth
- Laboratory of Organic and Macromolecular Chemistry (IOMC); Friedrich Schiller University Jena; Humboldtstr. 10 07743 Jena Germany
- Jena Center for Soft Matter (JCSM); Friedrich Schiller University Jena; Philosophenweg 7 07743 Jena Germany
| | - Ulrich S. Schubert
- Laboratory of Organic and Macromolecular Chemistry (IOMC); Friedrich Schiller University Jena; Humboldtstr. 10 07743 Jena Germany
- Jena Center for Soft Matter (JCSM); Friedrich Schiller University Jena; Philosophenweg 7 07743 Jena Germany
| | - Stephanie Hoeppener
- Laboratory of Organic and Macromolecular Chemistry (IOMC); Friedrich Schiller University Jena; Humboldtstr. 10 07743 Jena Germany
- Jena Center for Soft Matter (JCSM); Friedrich Schiller University Jena; Philosophenweg 7 07743 Jena Germany
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24
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Chen Y, Bian X, Aliru M, Deorukhkar AA, Ekpenyong O, Liang S, John J, Ma J, Gao X, Schwartz J, Singh P, Ye Y, Krishnan S, Xie H. Hypoxia-targeted gold nanorods for cancer photothermal therapy. Oncotarget 2018; 9:26556-26571. [PMID: 29899876 PMCID: PMC5995181 DOI: 10.18632/oncotarget.25492] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2018] [Accepted: 05/08/2018] [Indexed: 11/25/2022] Open
Abstract
Tumor hypoxia is a well-recognized driver of resistance to traditional cancer therapies such as chemotherapy and radiation therapy. We describe development of a new nanoconstruct composed of gold nanorods (GNRs) conjugated to carbonic anhydrase IX (CAIX) antibody that specifically binds to CAIX, a biomarker of hypoxia, to facilitate targeting tumor hypoxic areas for focused photothermal ablation. Physicochemical characterization studies confirmed the size, shape, monodispersity, surface charge, and serum stability of the GNRs. Enzyme-linked immunosorbent assays and cellular binding and uptake studies confirmed successful conjugation of antibody to the GNRs and specificity for CAIX. Near-infrared irradiation of CAIX-overexpressing cells treated with GNR/anti-CAIX resulted in significantly higher cell death than cells treated with control GNRs. In vivo biodistribution studies using hyperspectral imaging and inductively coupled plasma mass spectrometry confirmed intravenous administration results not only in greater accumulation of GNR/anti-CAIX in tumors than control GNRs but also greater penetration into hypoxic areas of tumors. Near-infrared ablation of these tumors showed no tumor regression in the sham-treated group, regression but recurrence in the non-targeted-GNR group, and complete tumor regression in the targeted-GNR group. GNR/anti-CAIX nanoconstructs show promise as hypoxia targeting and photothermal ablation agents for cancer treatment.
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Affiliation(s)
- Yuan Chen
- Department of Pharmaceutical and Environmental Sciences, College of Pharmacy and Health Sciences, Texas Southern University, Houston, TX, USA
| | - Xiaomei Bian
- Department of Pharmaceutical and Environmental Sciences, College of Pharmacy and Health Sciences, Texas Southern University, Houston, TX, USA
| | - Maureen Aliru
- Department of Radiation Oncology, Division of Radiation Oncology, The University of Texas M. D. Anderson Cancer Center, Houston, TX, USA
| | - Amit A Deorukhkar
- Department of Radiation Oncology, Division of Radiation Oncology, The University of Texas M. D. Anderson Cancer Center, Houston, TX, USA
| | - Oscar Ekpenyong
- Department of Pharmaceutical and Environmental Sciences, College of Pharmacy and Health Sciences, Texas Southern University, Houston, TX, USA
| | - Su Liang
- Department of Pharmaceutical and Environmental Sciences, College of Pharmacy and Health Sciences, Texas Southern University, Houston, TX, USA
| | - Jyothy John
- Department of Pharmaceutical and Environmental Sciences, College of Pharmacy and Health Sciences, Texas Southern University, Houston, TX, USA
| | - Jing Ma
- Department of Pharmaceutical and Environmental Sciences, College of Pharmacy and Health Sciences, Texas Southern University, Houston, TX, USA
| | - Xiuqing Gao
- Department of Pharmaceutical and Environmental Sciences, College of Pharmacy and Health Sciences, Texas Southern University, Houston, TX, USA
| | - Jon Schwartz
- Nanospectra Biosciences, Inc., Houston, Texas, USA
| | - Pankaj Singh
- Department of Radiation Oncology, Division of Radiation Oncology, The University of Texas M. D. Anderson Cancer Center, Houston, TX, USA
| | - Yuanqing Ye
- Department of Epidemiology, Division of OVP, Cancer Prevention and Population Science, The University of Texas M. D. Anderson Cancer Center, Houston, TX, USA
| | - Sunil Krishnan
- Department of Radiation Oncology, Division of Radiation Oncology, The University of Texas M. D. Anderson Cancer Center, Houston, TX, USA
| | - Huan Xie
- Department of Pharmaceutical and Environmental Sciences, College of Pharmacy and Health Sciences, Texas Southern University, Houston, TX, USA
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25
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Khanehzar A, Fraire JC, Xi M, Feizpour A, Xu F, Wu L, Coronado EA, Reinhard BM. Nanoparticle-cell interactions induced apoptosis: a case study with nanoconjugated epidermal growth factor. NANOSCALE 2018; 10:6712-6723. [PMID: 29589623 PMCID: PMC6035871 DOI: 10.1039/c8nr01106k] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
In addition to the intrinsic toxicity associated with the chemical composition of nanoparticles (NP) and their ligands, biofunctionalized NP can perturb specific cellular processes through NP-cell interactions and induce programmed cell death (apoptosis). In the case of the epidermal growth factor (EGF), nanoconjugation has been shown to enhance the apoptotic efficacy of the ligand, but the critical aspects of the underlying mechanism and its dependence on the NP morphology remain unclear. In this manuscript we characterize the apoptotic efficacy of nanoconjugated EGF as a function of NP size (with sphere diameters in the range 20-80 nm), aspect ratio (A.R., in the range of 4.5 to 8.6), and EGF surface loading in EGFR overexpressing MDA-MB-468 cells. We demonstrate a significant size and morphology dependence in this relatively narrow parameter space with spherical NP with a diameter of approx. 80 nm being much more efficient in inducing apoptosis than smaller spherical NP or rod-shaped NP with comparable EGF loading. The nanoconjugated EGF is found to trigger an EGFR-dependent increase in cytoplasmic reactive oxygen species (ROS) levels but no indications of increased mitochondrial ROS levels or mitochondrial membrane damage are detected at early time points of the apoptosis induction. The increase in cytoplasmic ROS is accompanied by a perturbation of the intracellular glutathione homeostasis, which represents an important check-point for NP-EGF mediated apoptosis. Abrogation of the oxidative stress through the inhibition of EGFR signaling by the EGFR inhibitor AG1478 or addition of antioxidants N-acetyl cysteine (NAC) or tempol, but not trolox, successfully suppressed the apoptotic effect of nanoconjugated EGF. A model to account for the observed morphology dependence of EGF nanoconjugation enhanced apoptosis and the underlying NP-cell interactions is discussed.
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Affiliation(s)
- Ali Khanehzar
- Department of Chemistry and the Photonics Center, Boston University, Boston, Massachusetts 02215, USA.
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Abstract
Cell death is crucial to human health and is related to various serious diseases. Therefore, generation of new cell death regulators is urgently needed for disease treatment. Nanoparticles (NPs) are now routinely used in a variety of fields, including consumer products and medicine. Exhibiting stability and ease of decoration, gold nanoparticles (GNPs) could be used in diagnosis and disease treatment. Upon entering the human body, GNPs contact human cells in the blood, targeting organs and the immune system. This property results in the disturbance of cell function and even cell death. Therefore, GNPs may act as powerful cell death regulators. However, at present, we are far from establishing a structure–activity relationship between the physicochemical properties of GNPs and cell death, and predicting GNP-induced cell death. In this review, GNPs’ size, shape, and surface properties are observed to play key roles in regulating various cell death modalities and related signaling pathways. These results could guide the design of GNPs for nanomedicine.
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Affiliation(s)
- Hainan Sun
- School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China.
| | - Jianbo Jia
- School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China.
- School of Environmental Science and Engineering, Guangzhou University, Guangzhou 510006, China.
| | - Cuijuan Jiang
- School of Environmental Science and Engineering, Shandong University, Jinan 250100, China.
| | - Shumei Zhai
- School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China.
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27
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Shrivastava R, Dube A. Effect of the polyelectrolyte coating on the photothermal efficiency of gold nanorods and the photothermal induced cancer cell damage. IET Nanobiotechnol 2017; 11:909-916. [PMID: 29155389 PMCID: PMC8676409 DOI: 10.1049/iet-nbt.2016.0132] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2016] [Revised: 11/11/2016] [Accepted: 11/17/2016] [Indexed: 09/26/2023] Open
Abstract
Coating gold nanorods (GNRs) with polyelectrolytes is an effective approach to make them biocompatible for potential use in photothermal treatment (PTT) of cancer. The authors report the effect of coating of the GNRs with polystyrene sulphonate (PSS-GNRs) and PSS plus poly di-allyl di-methyl ammonium chloride (PDDAC-GNRs) on its photothermal conversion efficiency (PTE), cellular uptake and subsequently the photothermal induced cytotoxicity in human oral cancer cells (NT8e). Coating of GNRs with PSS led to decrease in PTE by ∼30% and further coating it with PDDAC led to its increase to similar level, with respect to as- prepared GNRs. The cellular uptake of PDDAC-GNRs in cancer cells was double than that for PSS-GNRs. PTT of cancer cells after treatment with 60 pM of either PDDAC-GNRs or PSS-GNRs resulted in cytotoxicty of ∼90%. At higher concentration of 120 pM, while PSS-GNRs showed no further change, for PDDAC-GNR the photothermal induced cytotoxicity decreased to ∼50%. The broadening of longitudinal surface plasmon peak of PDDAC-GNRs and appearance of dark clusters in cells under bright-field microscope suggested intracellular clustering of PDDAC-GNRs. In conclusion, despite high PTE and cellular uptake of PDDAC-GNRs, its intracellular clustering (due to acidic pH ) adversely affect the PTT of cancer cells.
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Affiliation(s)
- Rashmi Shrivastava
- Photobiology Lab, Laser Biomedical Applications Section, Raja Ramanna Centre for Advanced Technology, Indore-452013, India.
| | - Alok Dube
- Photobiology Lab, Laser Biomedical Applications Section, Raja Ramanna Centre for Advanced Technology, Indore-452013, India
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28
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Anozie UC, Dalhaimer P. Molecular links among non-biodegradable nanoparticles, reactive oxygen species, and autophagy. Adv Drug Deliv Rev 2017; 122:65-73. [PMID: 28065863 DOI: 10.1016/j.addr.2017.01.001] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2016] [Revised: 01/02/2017] [Accepted: 01/03/2017] [Indexed: 12/15/2022]
Abstract
For nanoparticles to be successful in combating diseases in the clinic in the 21st century and beyond, they must localize to target areas of the body and avoid damaging non-target, healthy tissues. Both soft and stiff, bio-degradable and non-biodegradable nanoparticles are anticipated to be used to this end. It has been shown that stiff, non-biodegradable nanoparticles cause reactive oxygen species (ROS) generation and autophagy in a variety of cell lines in vitro. Both responses can lead to significant remodeling of the cytosol and even apoptosis. Thus these are crucial cellular functions to understand. Improved assays have uncovered crucial roles of the Akt/mTOR signaling pathway in both ROS generation and autophagy initiation after cells have internalized stiff, non-biodegradable nanoparticles over varying geometries in culture. Of particular - yet unresolved - interest is how these nanoparticles cause the activation of these pathways. This article reviews the most recent advances in nanoparticle generation of ROS and autophagy initiation with a focus on stiff, non-biodegradable technologies. We provide experimental guidelines to the reader for fleshing out the effects of their nanoparticles on the above pathways with the goal of tuning nanoparticle design.
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29
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Zhou J, Cao Z, Panwar N, Hu R, Wang X, Qu J, Tjin SC, Xu G, Yong KT. Functionalized gold nanorods for nanomedicine: Past, present and future. Coord Chem Rev 2017. [DOI: 10.1016/j.ccr.2017.08.020] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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30
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Biological safety and tissue distribution of (16-mercaptohexadecyl)trimethylammonium bromide-modified cationic gold nanorods. Biomaterials 2017; 154:275-290. [PMID: 29149721 DOI: 10.1016/j.biomaterials.2017.10.044] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2017] [Revised: 10/13/2017] [Accepted: 10/27/2017] [Indexed: 12/18/2022]
Abstract
The exceptionally high cellular uptake of gold nanorods (GNRs) bearing cationic surfactants makes them a promising tool for biomedical applications. Given the known specific toxic and stress effects of some preparations of cationic nanoparticles, the purpose of this study was to evaluate, in an in vitro and in vivo in mouse, the potential harmful effects of GNRs coated with (16-mercaptohexadecyl)trimethylammonium bromide (MTABGNRs). Interestingly, even after cellular accumulation of high amounts of MTABGNRs sufficient for induction of photothermal effect, no genotoxicity (even after longer-term accumulation), induction of autophagy, destabilization of lysosomes (dominant organelles of their cellular destination), alterations of actin cytoskeleton, or in cell migration could be detected in vitro. In vivo, after intravenous administration, the majority of GNRs accumulated in mouse spleen followed by lungs and liver. Microscopic examination of the blood and spleen showed that GNRs interacted with white blood cells (mononuclear and polymorphonuclear leukocytes) and thrombocytes, and were delivered to the spleen red pulp mainly as GNR-thrombocyte complexes. Importantly, no acute toxic effects of MTABGNRs administered as 10 or 50 μg of gold per mice, as well as no pathological changes after their high accumulation in the spleen were observed, indicating good tolerance of MTABGNRs by living systems.
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31
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Gulumian M, Andraos C. In Search of a Converging Cellular Mechanism in Nanotoxicology and Nanomedicine in the Treatment of Cancer. Toxicol Pathol 2017; 46:4-13. [PMID: 29034767 DOI: 10.1177/0192623317735776] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Multiple applications of nanomaterials have raised concern with regard to their toxicity. With increasing research into nanomaterial safety, mechanisms involved in the toxic effects of nanomaterials have begun to emerge. The importance of nanomaterial-induced lysosomal membrane permeabilization through overloading or direct damage of the lysosomal compartment, resulting in the blockade of autophagosome-lysosome fusion and autophagy dysfunction, as well as inflammasome activation were cited as emerging mechanisms of nanomaterial toxicity. It has recently been proposed that these very mechanisms leading to nanomaterial toxicity may be utilized in nanotherapeutics. This review discusses these nanomaterial-induced mechanisms in detail and how it has been exploited in cancer research. This review also addresses certain considerations that need to be kept in mind when using nanomaterials in therapeutics.
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Affiliation(s)
- Mary Gulumian
- 1 National Institute for Occupational Health (NIOH), Johannesburg, South Africa.,2 Haematology and Molecular Medicine Department, School of Pathology, University of the Witwatersrand, Johannesburg, South Africa
| | - Charlene Andraos
- 1 National Institute for Occupational Health (NIOH), Johannesburg, South Africa
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32
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Han Y, Li X, Chen H, Hu X, Luo Y, Wang T, Wang Z, Li Q, Fan C, Shi J, Wang L, Zhao Y, Wu C, Chen N. Real-Time Imaging of Endocytosis and Intracellular Trafficking of Semiconducting Polymer Dots. ACS APPLIED MATERIALS & INTERFACES 2017; 9:21200-21208. [PMID: 28586196 DOI: 10.1021/acsami.7b05662] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Semiconducting polymer dots (Pdots) have shown great promise in biomedical applications, including biosensing, drug delivery, and live imaging of cells and biomolecules. Insight into the mechanism and regulation of cellular uptake and intracellular metabolism of Pdots is important for the development of superior Pdots-based theranostic nanoconjugates. Herein, we performed real-time imaging of endocytosis and intracellular trafficking of a type of fluorescent Pdots that showed excellent biocompatibility in various types of cells. The endocytic routes and kinetics of Pdots were differently regulated in distinct cell types. Following endocytosis, Pdots were transported in vesicles along microtubule and destined for lysosomes. Furthermore, our results revealed exosome-mediated extracellular release of Pdots and have tracked the dynamic process at the single particle level. These results provide new insight into the design of more effective and selective imaging probes as well as drug carriers.
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Affiliation(s)
- Yuping Han
- College of Life Sciences, Sichuan University , Chengdu 610064, China
| | - Xiaoming Li
- School of Life Science and Technology, ShanghaiTech University , Shanghai 201210, China
| | - Haobin Chen
- Department of Biomedical Engineering, Southern University of Science and Technology , Shenzhen, Guangdong 518055, China
| | - Xingjie Hu
- Division of Physical Biology and Bioimaging Center, Shanghai Synchrotron Radiation Facility, CAS Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences , Shanghai 201800, China
| | - Yao Luo
- College of Life Sciences, Sichuan University , Chengdu 610064, China
- Division of Physical Biology and Bioimaging Center, Shanghai Synchrotron Radiation Facility, CAS Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences , Shanghai 201800, China
| | - Ting Wang
- College of Life Sciences, Sichuan University , Chengdu 610064, China
- Division of Physical Biology and Bioimaging Center, Shanghai Synchrotron Radiation Facility, CAS Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences , Shanghai 201800, China
| | - Zejun Wang
- Division of Physical Biology and Bioimaging Center, Shanghai Synchrotron Radiation Facility, CAS Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences , Shanghai 201800, China
| | - Qian Li
- Division of Physical Biology and Bioimaging Center, Shanghai Synchrotron Radiation Facility, CAS Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences , Shanghai 201800, China
| | - Chunhai Fan
- Division of Physical Biology and Bioimaging Center, Shanghai Synchrotron Radiation Facility, CAS Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences , Shanghai 201800, China
- School of Life Science and Technology, ShanghaiTech University , Shanghai 201210, China
| | - Jiye Shi
- Division of Physical Biology and Bioimaging Center, Shanghai Synchrotron Radiation Facility, CAS Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences , Shanghai 201800, China
- UCB Pharma , 208 Bath Road, Slough SL1 3WE, United Kingdom
| | - Lihua Wang
- Division of Physical Biology and Bioimaging Center, Shanghai Synchrotron Radiation Facility, CAS Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences , Shanghai 201800, China
| | - Yun Zhao
- College of Life Sciences, Sichuan University , Chengdu 610064, China
| | - Changfeng Wu
- Department of Biomedical Engineering, Southern University of Science and Technology , Shenzhen, Guangdong 518055, China
| | - Nan Chen
- Division of Physical Biology and Bioimaging Center, Shanghai Synchrotron Radiation Facility, CAS Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences , Shanghai 201800, China
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Zhang J, Wang M, Webster TJ. Growth process and anticancer properties of gold nanorods. J Biomed Mater Res A 2017; 105:2616-2621. [DOI: 10.1002/jbm.a.36119] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2016] [Revised: 01/19/2017] [Accepted: 05/18/2017] [Indexed: 11/06/2022]
Affiliation(s)
- Junyan Zhang
- Department of Chemical Engineering; Northeastern University; Boston Massachusetts
| | - Mian Wang
- Department of Chemical Engineering; Northeastern University; Boston Massachusetts
| | - Thomas J. Webster
- Department of Chemical Engineering; Northeastern University; Boston Massachusetts
- Wenzhou Institute of Biomaterials and Engineering; Wenzhou Medical University; Wenzhou Zhejiang China
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Wang T, Wang L, Li X, Hu X, Han Y, Luo Y, Wang Z, Li Q, Aldalbahi A, Wang L, Song S, Fan C, Zhao Y, Wang M, Chen N. Size-Dependent Regulation of Intracellular Trafficking of Polystyrene Nanoparticle-Based Drug-Delivery Systems. ACS APPLIED MATERIALS & INTERFACES 2017; 9:18619-18625. [PMID: 28497682 DOI: 10.1021/acsami.7b05383] [Citation(s) in RCA: 68] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Nanoparticles (NPs) have shown great promise as intracellular imaging probes or nanocarriers and are increasingly being used in biomedical applications. A detailed understanding of how NPs get "in and out" of cells is important for developing new nanomaterials with improved selectivity and less cytotoxicity. Both physical and chemical characteristics have been proven to regulate the cellular uptake of NPs. However, the exocytosis process and its regulation are less explored. Herein, we investigated the size-regulated endocytosis and exocytosis of carboxylated polystyrene (PS) NPs. PS NPs with a smaller size were endocytosed mainly through the clathrin-dependent pathway, whereas PS NPs with a larger size preferred caveolae-mediated endocytosis. Furthermore, our results revealed exocytosis of larger PS NPs and tracked the dynamic process at the single-particle level. These results indicate that particle size is a key factor for the regulation of intracellular trafficking of NPs and provide new insight into the development of more effective cellular nanocarriers.
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Affiliation(s)
- Ting Wang
- College of Life Sciences, Sichuan University , Chengdu 610064, China
| | - Lu Wang
- Division of Physical Biology and Bioimaging Center, Shanghai Synchrotron Radiation Facility, CAS Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences , Shanghai 201800, China
| | - Xiaoming Li
- School of Life Science and Technology, ShanghaiTech University , Shanghai 201210, China
| | - Xingjie Hu
- Division of Physical Biology and Bioimaging Center, Shanghai Synchrotron Radiation Facility, CAS Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences , Shanghai 201800, China
| | - Yuping Han
- College of Life Sciences, Sichuan University , Chengdu 610064, China
| | - Yao Luo
- College of Life Sciences, Sichuan University , Chengdu 610064, China
| | - Zejun Wang
- Division of Physical Biology and Bioimaging Center, Shanghai Synchrotron Radiation Facility, CAS Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences , Shanghai 201800, China
| | - Qian Li
- Division of Physical Biology and Bioimaging Center, Shanghai Synchrotron Radiation Facility, CAS Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences , Shanghai 201800, China
| | - Ali Aldalbahi
- Chemistry Department, King Saud University , Riyadh 11451, Saudi Arabia
| | - Lihua Wang
- Division of Physical Biology and Bioimaging Center, Shanghai Synchrotron Radiation Facility, CAS Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences , Shanghai 201800, China
| | - Shiping Song
- Division of Physical Biology and Bioimaging Center, Shanghai Synchrotron Radiation Facility, CAS Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences , Shanghai 201800, China
| | - Chunhai Fan
- Division of Physical Biology and Bioimaging Center, Shanghai Synchrotron Radiation Facility, CAS Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences , Shanghai 201800, China
| | - Yun Zhao
- College of Life Sciences, Sichuan University , Chengdu 610064, China
| | - Maolin Wang
- College of Life Sciences, Sichuan University , Chengdu 610064, China
| | - Nan Chen
- Division of Physical Biology and Bioimaging Center, Shanghai Synchrotron Radiation Facility, CAS Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences , Shanghai 201800, China
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Intracellular Accumulation of Gold Nanoparticles Leads to Inhibition of Macropinocytosis to Reduce the Endoplasmic Reticulum Stress. Sci Rep 2017; 7:40493. [PMID: 28145529 PMCID: PMC5286442 DOI: 10.1038/srep40493] [Citation(s) in RCA: 65] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2016] [Accepted: 12/06/2016] [Indexed: 12/31/2022] Open
Abstract
Understanding the toxicity of nanomaterials remains largely limited to acute cellular response, i.e., short-term in vitro cell-death based assays, and analyses of tissue- and organ-level accumulation and clearance patterns in animal models, which have produced very little information about how these materials (from the toxicity point of view) interact with the complex intracellular machinery. In particular, understanding the mechanism of toxicity caused by the gradual accumulation of nanomaterials due to prolonged exposure times is essential yet still continue to be a largely unexplored territory. Herein, we show intracellular accumulation and the associated toxicity of gold nanoparticles (AuNPs) for over two-months in the cultured vascular endothelial cells. We observed that steady exposure of AuNPs at low (non-lethal) dose leads to rapid intracellular accumulation without causing any detectable cell death while resulting in elevated endoplasmic reticulum (ER) stress. Above a certain intracellular AuNP threshold, inhibition of macropinocytosis mechanism ceases further nanoparticle uptake. Interestingly, the intracellular depletion of nanoparticles is irreversible. Once reaching the maximum achievable intracellular dose, a steady depletion is observed, while no cell death is observed at any stage of this overall process. This depletion is important for reducing the ER stress. To our knowledge, this is the first report suggesting active regulation of nanoparticle uptake by cells and the impact of long-term exposure to nanoparticles in vitro.
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36
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Yang M, Liu Y, Hou W, Zhi X, Zhang C, Jiang X, Pan F, Yang Y, Ni J, Cui D. Mitomycin C-treated human-induced pluripotent stem cells as a safe delivery system of gold nanorods for targeted photothermal therapy of gastric cancer. NANOSCALE 2017; 9:334-340. [PMID: 27922138 DOI: 10.1039/c6nr06851k] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Human-induced pluripotent stem cells (iPS) possess an intrinsic tumor tropism ability. However, iPS cells are impeded in clinical applications of tumor therapy due to the formation of teratomas and their survival in normal organs such as the liver, lungs, spleen and kidneys. Mitomycin C (MMC) can overcome this limitation by suppressing iPS proliferation. Herein, we fabricated a safe delivery system of iPS cells treated with MMC loading with gold nanorods (AuNRs) for the targeted photothermal treatment of gastric cancer. Our results showed that the tumor cells were efficiently killed by the heat generated from the gold nanorods, and the iPS cells ultimately died due to the action of MMC seven days after the photothermal treatment. This suggested that pre-treated iPS cells with MMC can be used as a novel and safe approach for targeted tumor therapy. This paves the road for clinical translation in the future.
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Affiliation(s)
- Meng Yang
- Institute of Nano Biomedicine and Engineering, Shanghai Engineering Research Centre for Intelligent Diagnosis and Treatment Instrument, Department of Instrument Science and Engineering, School of Electronic Information and Electrical Engineering, National Center for Translational Medicine, Shanghai Jiao Tong University, Shanghai 200240, P.R. China.
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37
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Pramanik SK, Sreedharan S, Singh H, Green NH, Smythe C, Thomas JA, Das A. Imaging cellular trafficking processes in real time using lysosome targeted up-conversion nanoparticles. Chem Commun (Camb) 2017; 53:12672-12675. [DOI: 10.1039/c7cc08185e] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Peptide conjugated upconverting nanoparticles for specific imaging of lysosome
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Affiliation(s)
| | | | - Harwinder Singh
- CSIR-Central Salt & Marine Chemicals Research Institute
- Bhavnagar 364002
- India
| | - Nicola H. Green
- Department of Materials Science and Engineering
- Kroto Research Institute
- North Campus
- Broad Lane
- University of Sheffield
| | - Carl Smythe
- Department of Biomedical Science
- University of Sheffield
- Sheffield
- UK
| | - Jim. A. Thomas
- Department of Chemistry
- University of Sheffield
- Sheffield
- UK
| | - Amitava Das
- CSIR-Central Salt & Marine Chemicals Research Institute
- Bhavnagar 364002
- India
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One low-dose exposure of gold nanoparticles induces long-term changes in human cells. Proc Natl Acad Sci U S A 2016; 113:13318-13323. [PMID: 27821760 DOI: 10.1073/pnas.1616400113] [Citation(s) in RCA: 99] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
We report the in vitro long-term (20 wk) changes in cells exposed to well-characterized gold nanoparticles (Au NPs) with varying shapes and surface coatings under both chronic (exposure to Au NPs continuously over 20 wk) and nonchronic (initial acute cell exposure to Au NPs, followed by 20 wk in NP-free cell media) conditions. Both chronic and nonchronic Au NPs exposures at low dose induce modifications at the gene level after long periods. In attempt to overcome from the injuries caused by nanoparticle exposure, genes related to oxidative stress, cell cycle regulation, and inflammation are among those presenting differential expression levels. Surprisingly, the nonchronic exposure induced more gene expression changes than its chronic counterpart and the stress effects caused by this type of exposure were sustained even after 20 wk without any additional NP exposure. NP surface chemistry played an important role in the alteration of gene regulation. Overall, our data suggest that (i) cells can adaptively respond to chronic, low-level NP insults; (ii) the cell stress response is not reversible over time upon removal of NPs upon acute, nonchronic exposure; and (iii) polyethylene glycol is not as benign a surface chemistry as is generally supposed.
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Yong T, Hu J, Zhang X, Li F, Yang H, Gan L, Yang X. Domino-Like Intercellular Delivery of Undecylenic Acid-Conjugated Porous Silicon Nanoparticles for Deep Tumor Penetration. ACS APPLIED MATERIALS & INTERFACES 2016; 8:27611-27621. [PMID: 27653799 DOI: 10.1021/acsami.6b11127] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Improving the intratumoral distribution of anticancer agents remains the critical challenge for developing efficient cancer chemotherapy. Luminescent porous silicon nanoparticles (PSiNPs) have attracted considerable attention in the biomedical field especially in drug delivery. Here, we described the lysosomal exocytosis-mediated domino-like intercellular delivery of undecylenic acid-conjugated PSiNPs (UA-PSiNPs) for deep tumor penetration. UA-PSiNPs with significantly improved stability in physiological conditions were internalized into tumor cells by macropinocytosis-, caveolae-, and clathrin-mediated endocytosis and mainly colocalized with Golgi apparatus and lysosomes. Substantial evidence showed that UA-PSiNPs was excreted from cells via lysosomal exocytosis after cellular uptake. The exocytosed UA-PSiNPs induced a domino-like infection of adjacent cancer cells and allowed encapsulated doxorubicin (DOX) to deeply penetrate into both three-dimensional tumor spheroids and in vivo tumors. In addition, DOX-loaded UA-PSiNPs exhibited strong antitumor activity and few side effects in vivo. This study demonstrated that UA-PSiNPs as a drug carrier might be applied for deep tumor penetration, offering a new insight into the design of more efficient delivery systems of anticancer drugs.
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Affiliation(s)
- Tuying Yong
- National Engineering Research Center for Nanomedicine, Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology , Wuhan, Hubei 430074, China
| | - Jun Hu
- National Engineering Research Center for Nanomedicine, Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology , Wuhan, Hubei 430074, China
| | - Xiaoqiong Zhang
- National Engineering Research Center for Nanomedicine, Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology , Wuhan, Hubei 430074, China
| | - Fuying Li
- National Engineering Research Center for Nanomedicine, Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology , Wuhan, Hubei 430074, China
| | - Hao Yang
- National Engineering Research Center for Nanomedicine, Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology , Wuhan, Hubei 430074, China
| | - Lu Gan
- National Engineering Research Center for Nanomedicine, Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology , Wuhan, Hubei 430074, China
| | - Xiangliang Yang
- National Engineering Research Center for Nanomedicine, Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology , Wuhan, Hubei 430074, China
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Zhang F, Zhu X, Gong J, Sun Y, Chen D, Wang J, Wang Y, Guo M, Li W. Lysosome–mitochondria-mediated apoptosis specifically evoked in cancer cells induced by gold nanorods. Nanomedicine (Lond) 2016; 11:1993-2006. [DOI: 10.2217/nnm-2016-0139] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Aim: The main aim of this article is to explain the apoptosis mechanisms of cancer cells specifically triggered by gold nanorods (GNRs). Materials & methods: GNRs were synthesized and optimized, the lysosome damage, cathepsin D, mitochondrial membrane potential, caspase-9, cleaved caspase-9, caspase-3 and intracellular GNRs location related to apoptosis was systematically evaluated. Results: GNRs specifically induce cancer cell apoptosis while posing a negligible impact on normal cells. After incubation with GNRs, the lysosomal permeability in cancer cells as indicated by cathepsin D was markedly higher than that in normal cells and resulted in an obvious decrease in mitochondrial membrane potential. Western blot analysis further confirmed that apoptosis occurred through caspase-9 and caspase-3 activation following mitochondrial damage. Transmission electron microscope images showed that GNRs did not appear in most of the damaged mitochondria but mainly accumulated in lysosomes. Conclusion: These findings indicated that GNR-induced apoptosis specifically in cancer cells by affecting lysosomes and mitochondria.
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Affiliation(s)
- Fulei Zhang
- International Joint Cancer Institute, The Second Military Medical University, Shanghai 200433, China
| | - Xiandi Zhu
- International Joint Cancer Institute, The Second Military Medical University, Shanghai 200433, China
| | - Jing Gong
- Department of Radiology, The Second Military Medical University, First Affiliated, Hospital, 168 Changhai Road, Shanghai 200433, China
| | - Yun Sun
- International Joint Cancer Institute, The Second Military Medical University, Shanghai 200433, China
| | - Di Chen
- International Joint Cancer Institute, The Second Military Medical University, Shanghai 200433, China
| | - Jie Wang
- International Joint Cancer Institute, The Second Military Medical University, Shanghai 200433, China
| | - Ying Wang
- International Joint Cancer Institute, The Second Military Medical University, Shanghai 200433, China
| | - Mengfang Guo
- International Joint Cancer Institute, The Second Military Medical University, Shanghai 200433, China
| | - Wei Li
- International Joint Cancer Institute, The Second Military Medical University, Shanghai 200433, China
- PLA General Hospital Cancer Center, PLA Graduate School of Medicine, Beijing 100853, China
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Comenge J, Fragueiro O, Sharkey J, Taylor A, Held M, Burton NC, Park BK, Wilm B, Murray P, Brust M, Lévy R. Preventing Plasmon Coupling between Gold Nanorods Improves the Sensitivity of Photoacoustic Detection of Labeled Stem Cells in Vivo. ACS NANO 2016; 10:7106-7116. [PMID: 27308890 DOI: 10.1021/acsnano.6b03246] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Gold nanorods are excellent contrast agents for imaging technologies which rely on near-infrared absorption such as photoacoustic imaging. For cell tracking applications, the cells of interest are labeled with the contrast agent prior to injection. However, after uptake into cells by endocytosis, the confinement and high concentration in endosomes leads to plasmon band broadening and reduced absorbance. This would limit the potential of multispectral optoacoustic tomography in terms of spectral processing and, consequently, sensitivity. Here, we show that steric hindrance provided by silica coating of the nanorods leads to the preservation of their spectral properties and improved photoacoustic sensitivity. This strategy allowed the detection and monitoring of as few as 2 × 10(4) mesenchymal stem cells in mice over a period of 15 days with a high spatial resolution. Importantly, the silica-coated nanorods did not affect the viability or differentiation potential of the transplanted mesenchymal stem cells.
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Affiliation(s)
- Joan Comenge
- Institute of Integrative Biology, University of Liverpool , Liverpool L69 7ZB, United Kingdom
| | - Oihane Fragueiro
- Department of Chemistry, University of Liverpool , Liverpool L69 7ZD, United Kingdom
| | - Jack Sharkey
- Institute of Translational Medicine, University of Liverpool , Liverpool L69 3BX, United Kingdom
| | - Arthur Taylor
- Institute of Translational Medicine, University of Liverpool , Liverpool L69 3BX, United Kingdom
| | - Marie Held
- Institute of Integrative Biology, University of Liverpool , Liverpool L69 7ZB, United Kingdom
| | - Neal C Burton
- iThera Medical GmbH , Zielstattstrasse 13, 81379 Munich, Germany
| | - Brian Kevin Park
- Institute of Translational Medicine, University of Liverpool , Liverpool L69 3BX, United Kingdom
| | - Bettina Wilm
- Institute of Translational Medicine, University of Liverpool , Liverpool L69 3BX, United Kingdom
| | - Patricia Murray
- Institute of Translational Medicine, University of Liverpool , Liverpool L69 3BX, United Kingdom
| | - Mathias Brust
- Department of Chemistry, University of Liverpool , Liverpool L69 7ZD, United Kingdom
| | - Raphaël Lévy
- Institute of Integrative Biology, University of Liverpool , Liverpool L69 7ZB, United Kingdom
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42
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Liu Y, Yang M, Zhang J, Zhi X, Li C, Zhang C, Pan F, Wang K, Yang Y, Martinez de la Fuentea J, Cui D. Human Induced Pluripotent Stem Cells for Tumor Targeted Delivery of Gold Nanorods and Enhanced Photothermal Therapy. ACS NANO 2016; 10:2375-85. [PMID: 26761620 DOI: 10.1021/acsnano.5b07172] [Citation(s) in RCA: 141] [Impact Index Per Article: 17.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
How to improve effective accumulation and intratumoral distribution of plasmonic gold nanoparticles has become a great challenge for photothermal therapy of tumors. Herein, we reported a nanoplatform with photothermal therapeutic effects by fabricating Au nanorods@SiO2@CXCR4 nanoparticles and loading the prepared nanoparticles into the human induced pluripotent stem cells(AuNRs-iPS). In virtue of the prominent optical properties of Au nanorods@SiO2@CXCR4 and remarkable tumor target migration ability of iPS cells, the Au nanorods delivery mediated by iPS cells via the nanoplatform AuNRs-iPS was found to have a prolonged retention time and spatially even distribution in MGC803 tumor-bearing nude mice observed by photoacoustic tomography and two-photon luminescence. On the basis of these improvements, the nanoplatform displayed a robust migration capacity to target the tumor site and to improve photothermal therapeutic efficacy on inhibiting the growth of tumors in xenograft mice under a low laser power density. The combination of gold nanorods with human iPS cells as a theranostic platform paves an alternative road for cancer theranostics and holds great promise for clinical translation in the near future.
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43
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Song H, Xu Q, Di H, Guo T, Qi Z, Zhao S. Time evolution and dynamic cellular uptake of PEGYlated gold nanorods. RSC Adv 2016. [DOI: 10.1039/c5ra24460a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The protein corona formed and evolved of PEGYlated GNRs which alter GNRs characteristics significantly leading to dynamic cellular uptake pathways.
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Affiliation(s)
- Hongyuan Song
- Department of Ophthalmology
- Changhai Hospital
- Second Military Medical University
- Shanghai 200433
- China
| | - Qingqiang Xu
- Department of Microbiology
- Second Military Medical University
- Shanghai 200433
- China
| | - Hongwei Di
- Department of Microbiology
- Second Military Medical University
- Shanghai 200433
- China
| | - Ting Guo
- Department of Ophthalmology
- Changhai Hospital
- Second Military Medical University
- Shanghai 200433
- China
| | - Zhongtian Qi
- Department of Microbiology
- Second Military Medical University
- Shanghai 200433
- China
| | - Shihong Zhao
- Department of Ophthalmology
- Changhai Hospital
- Second Military Medical University
- Shanghai 200433
- China
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Xia Y, You P, Xu F, Liu J, Xing F. Novel Functionalized Selenium Nanoparticles for Enhanced Anti-Hepatocarcinoma Activity In vitro. NANOSCALE RESEARCH LETTERS 2015; 10:1051. [PMID: 26334544 PMCID: PMC4558992 DOI: 10.1186/s11671-015-1051-8] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2015] [Accepted: 08/17/2015] [Indexed: 05/26/2023]
Abstract
Selenium nanoparticles loaded with an anticancer molecule offer a new strategy for cancer treatment. In the current study, anisomycin-loaded functionalized selenium nanoparticles (SeNPs@Am) have been made by conjugating anisomycin to the surface of selenium nanoparticles to improve anticancer efficacy. The prepared nanoparticles were fully characterized by transmission electronic microscopy, energy dispersive X-ray spectroscopy, Fourier-transformed infrared spectroscopy, and X-ray photoelectron spectroscopy. The results showed that anisomycin was successfully conjugated with selenium nanoparticles. The size of particles could be effectively regulated through altering the reaction concentrations of sodium selenite and anisomycin. The SeNPs@Am particles (56 nm) exhibited the greatest capacity for cellular uptake. The further study showed that SeNPs@Am entered human hepatocellular carcinoma HepG2 cells in a dose or time-dependent manner via macropinocytosis and clathrin-mediated endocytosis pathways. SeNPs@Am significantly inhibited HepG2 cell proliferation with the low cytotoxicity against normal cells, and dramatically precluded the aggression and migration of HepG2 cells. It also arrested the cell cycle progression at the G0/G1 phase through the activation of the cyclin-dependent kinase inhibitors with inhibition of CDK-2 and ICBP90, and induced the cell apoptosis through activating the caspase cascade signaling in HepG2 cells, markedly superior to anisomycin alone. The findings indicate that SeNPs@Am may be a promising drug for hepatocellular carcinoma.
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Affiliation(s)
- Yu Xia
- Department of Immunobiology, Institute of Tissue Transplantation and Immunology, Jinan University, Guangzhou, 510632 People’s Republic of China
| | - Pengtao You
- Department of Immunobiology, Institute of Tissue Transplantation and Immunology, Jinan University, Guangzhou, 510632 People’s Republic of China
| | - Fangfang Xu
- Department of Immunobiology, Institute of Tissue Transplantation and Immunology, Jinan University, Guangzhou, 510632 People’s Republic of China
| | - Jing Liu
- Department of Stomatology, Jinan University, Guangzhou, 510632 People’s Republic of China
| | - Feiyue Xing
- Department of Immunobiology, Institute of Tissue Transplantation and Immunology, Jinan University, Guangzhou, 510632 People’s Republic of China
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Gehrmann MK, Kimm MA, Stangl S, Schmid TE, Noël PB, Rummeny EJ, Multhoff G. Imaging of Hsp70-positive tumors with cmHsp70.1 antibody-conjugated gold nanoparticles. Int J Nanomedicine 2015; 10:5687-700. [PMID: 26392771 PMCID: PMC4572731 DOI: 10.2147/ijn.s87174] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Real-time imaging of small tumors is still one of the challenges in cancer diagnosis, prognosis, and monitoring of clinical outcome. Targeting novel biomarkers that are selectively expressed on a large variety of different tumors but not normal cells has the potential to improve the imaging capacity of existing methods such as computed tomography. Herein, we present a novel technique using cmHsp70.1 monoclonal antibody-conjugated spherical gold nanoparticles for quantification of the targeted uptake of gold nanoparticles into membrane Hsp70-positive tumor cells. Upon binding, cmHsp70.1-conjugated gold nanoparticles but not nanoparticles coupled to an isotype-matched IgG1 antibody or empty nanoparticles are rapidly taken up by highly malignant Hsp70 membrane-positive mouse tumor cells. After 24 hours, the cmHsp70.1-conjugated gold nanoparticles are found to be enriched in the perinuclear region. Specificity for membrane Hsp70 was shown by using an Hsp70 knockout tumor cell system. Toxic side effects of the cmHsp70.1-conjugated nanoparticles are not observed at a concentration of 1–10 µg/mL. Experiments are ongoing to evaluate whether cmHsp70.1 antibody-conjugated gold nanoparticles are suitable for the detection of membrane-Hsp70-positive tumors in vivo.
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Affiliation(s)
- Mathias K Gehrmann
- Department of Radiation Oncology, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
| | - Melanie A Kimm
- Department of Diagnostic and Interventional Radiology, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
| | - Stefan Stangl
- Department of Radiation Oncology, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
| | - Thomas E Schmid
- Department of Radiation Oncology, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
| | - Peter B Noël
- Department of Diagnostic and Interventional Radiology, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
| | - Ernst J Rummeny
- Department of Diagnostic and Interventional Radiology, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
| | - Gabriele Multhoff
- Department of Radiation Oncology, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
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Zhou T, Du Y, Wei T. Transcriptomic analysis of human breast cancer cells reveals differentially expressed genes and related cellular functions and pathways in response to gold nanorods. BIOPHYSICS REPORTS 2015; 1:106-114. [PMID: 26942225 PMCID: PMC4762141 DOI: 10.1007/s41048-015-0005-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2014] [Accepted: 04/02/2015] [Indexed: 11/29/2022] Open
Abstract
Breast cancer is the leading cause of cancer deaths in women. Recent advances in nanomedicine have shown that gold nanorods (AuNRs), as multifunctional drug delivery and photothermal therapeutic agents, have potential for use in cancer therapy. However, the effect of AuNRs on the transcriptome of breast cancer cells is unknown. In the present study, cells of the triple-negative human breast cancer cell line MDA-MB-231, which has high metastatic activity, were treated with AuNRs for transcriptomic analysis using RNA-seq technology. In total, 3126 genes were found to be up-regulated and 3558 genes were found to be down-regulated in AuNR-treated MDA-MB-231 cells. These differentially expressed genes presumably take part in multiple biological pathways, including glycolysis and regulation of the actin cytoskeleton, and impact a variety of cellular functions, including chemoattractant activity. The distinct gene expression profile of MDA-MB-231 cells treated with AuNRs provides a foundation for further screening and validation of important genes involved in the interaction between AuNRs and MDA-MB-231 cells.
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Affiliation(s)
- Teng Zhou
- National Laboratory of Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing, 100101 China
| | - Yipeng Du
- National Laboratory of Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing, 100101 China
| | - Taotao Wei
- National Laboratory of Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing, 100101 China
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47
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Timerbaev AR. Role of mass spectrometry in the development and medicinal implementation of metal-based nanoparticles. JOURNAL OF ANALYTICAL CHEMISTRY 2015. [DOI: 10.1134/s1061934815090166] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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48
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Co-encapsulating the fusogenic peptide INF7 and molecular imaging probes in liposomes increases intracellular signal and probe retention. PLoS One 2015; 10:e0120982. [PMID: 25816348 PMCID: PMC4376389 DOI: 10.1371/journal.pone.0120982] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2014] [Accepted: 02/09/2015] [Indexed: 11/19/2022] Open
Abstract
Liposomes are promising vehicles to deliver diagnostic and therapeutic agents to cells in vivo. After uptake into cells by endocytosis, liposomes are degraded in the endolysosomal system. Consequently, the encapsulated cargo molecules frequently remain sequestered in endosomal compartments; this limits their usefulness in many applications (e.g. gene delivery). To overcome this, various fusogenic peptides have been developed to facilitate delivery of liposomally-encapsulated molecules into the cytosol. One such peptide is the pH-sensitive influenza-derived peptide INF7. Liposomal delivery of imaging agents is an attractive approach for enabling cell imaging and cell tracking in vivo, but can be hampered by inadequate intracellular accumulation and retention of probes caused by exocytosis (and possible degradation) of endosome-entrapped probes. Such signal loss could be minimized by facilitating escape of probe molecules from endolysosomal compartments into the cytosol. We investigated the ability of co-encapsulated INF7 to release liposomally-delivered rhodamine fluorophores into the cytosol after endosomal acidification/maturation. We co-encapsulated INF7 and fluorescent rhodamine derivatives having vastly different transport properties to show that after endocytosis by CV1 cells, the INF7 peptide is activated by acidic endosomal pH and facilitates efficient release of the fluorescent tracers into the cytosol. Furthermore, we show that INF7-facilitated escape from endosomes markedly enhanced retention of tracers that cannot be actively extruded from the cytosol. Minimizing loss of intracellular probes improves cellular imaging by increasing the signal-to-noise ratio of images and lengthening the time window that imaging can be performed. In particular, this will enhance in vivo electron paramagnetic resonance imaging, an emergent magnetic resonance imaging modality requires exogenous paramagnetic imaging agents and is highly promising for cellular and molecular imaging.
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49
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Chiu HW, Xia T, Lee YH, Chen CW, Tsai JC, Wang YJ. Cationic polystyrene nanospheres induce autophagic cell death through the induction of endoplasmic reticulum stress. NANOSCALE 2015; 7:736-46. [PMID: 25429417 DOI: 10.1039/c4nr05509h] [Citation(s) in RCA: 122] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Nanoparticles (NPs) have been used to produce a wide range of products that have applications in imaging and drug delivery in medicine. Due to their chemical stability, well-controlled sizes and surface charges, polystyrene (PS) NPs have been developed as biosensors and drug delivery carriers. However, the possible adverse biological effects and underlying mechanisms are still unclear. Recently, autophagy has been implicated in the regulation of cell death. In this study, we evaluated a library of PS NPs with different surface charges. We found that NH2-labeled polystyrene (NH2-PS) nanospheres were highly toxic with enhanced uptake in macrophage (RAW 264.7) and lung epithelial (BEAS-2B) cells. Furthermore, NH2-PS could induce autophagic cell death. NH2-PS increased autophagic flux due to reactive oxygen species (ROS) generation and endoplasmic reticulum (ER) stress caused by misfolded protein aggregation. The inhibition of ER stress decreased cytotoxicity and autophagy in the NH2-PS-treated cells. In addition, the Akt/mTOR and AMPK signaling pathways were involved in the regulation of NH2-PS-triggered autophagic cell death. These results suggest an important role of autophagy in cationic NP-induced cell death and provide mechanistic insights into the inhibition of the toxicity and safe material design.
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Affiliation(s)
- Hui-Wen Chiu
- Department of Environmental and Occupational Health, National Cheng Kung University, Tainan, Taiwan.
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50
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Mooney R, Roma L, Zhao D, Van Haute D, Garcia E, Kim SU, Annala AJ, Aboody KS, Berlin JM. Neural stem cell-mediated intratumoral delivery of gold nanorods improves photothermal therapy. ACS NANO 2014; 8:12450-60. [PMID: 25375246 PMCID: PMC4278682 DOI: 10.1021/nn505147w] [Citation(s) in RCA: 116] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2014] [Accepted: 11/06/2014] [Indexed: 05/19/2023]
Abstract
Plasmonic photothermal therapy utilizes biologically inert gold nanorods (AuNRs) as tumor-localized antennas that convert light into heat capable of eliminating cancerous tissue. This approach has lower morbidity than surgical resection and can potentially synergize with other treatment modalities including chemotherapy and immunotherapy. Despite these advantages, it is still challenging to obtain heating of the entire tumor mass while avoiding unnecessary collateral damage to surrounding healthy tissue. It is therefore critical to identify innovative methods to distribute an effective concentration of AuNRs throughout tumors without depositing them in surrounding healthy tissue. Here we demonstrate that AuNR-loaded, tumor-tropic neural stem cells (NSCs) can be used to improve the intratumoral distribution of AuNRs. A simple UV-vis technique for measuring AuNR loading within NSCs was established. It was then confirmed that NSC viability is unimpaired following AuNR loading and that NSCs retain AuNRs long enough to migrate throughout tumors. We then demonstrate that intratumoral injections of AuNR-loaded NSCs are more efficacious than free AuNR injections, as evidenced by reduced recurrence rates of triple-negative breast cancer (MDA-MB-231) xenografts following NIR exposure. Finally, we demonstrate that the distribution of AuNRs throughout the tumors is improved when transported by NSCs, likely resulting in the improved efficacy of AuNR-loaded NSCs as compared to free AuNRs. These findings highlight the advantage of combining cellular therapies and nanotechnology to generate more effective cancer treatments.
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Affiliation(s)
- Rachael Mooney
- Department of Neurosciences, Department of Molecular Medicine, and Division of Neurosurgery, Beckman Research Institute at City of Hope, 1500 East Duarte Road, Duarte, California 91010, United States
- Address correspondence to ,
| | - Luella Roma
- Department of Neurosciences, Department of Molecular Medicine, and Division of Neurosurgery, Beckman Research Institute at City of Hope, 1500 East Duarte Road, Duarte, California 91010, United States
| | - Donghong Zhao
- Department of Neurosciences, Department of Molecular Medicine, and Division of Neurosurgery, Beckman Research Institute at City of Hope, 1500 East Duarte Road, Duarte, California 91010, United States
| | - Desiree Van Haute
- Department of Neurosciences, Department of Molecular Medicine, and Division of Neurosurgery, Beckman Research Institute at City of Hope, 1500 East Duarte Road, Duarte, California 91010, United States
| | - Elizabeth Garcia
- Department of Neurosciences, Department of Molecular Medicine, and Division of Neurosurgery, Beckman Research Institute at City of Hope, 1500 East Duarte Road, Duarte, California 91010, United States
| | - Seung U. Kim
- Division of Neurology, Department of Medicine, UBC Hospital, University of British Columbia, Vancouver, British Columbia V6T2B5, Canada
| | - Alexander J. Annala
- Department of Neurosciences, Department of Molecular Medicine, and Division of Neurosurgery, Beckman Research Institute at City of Hope, 1500 East Duarte Road, Duarte, California 91010, United States
| | - Karen S. Aboody
- Department of Neurosciences, Department of Molecular Medicine, and Division of Neurosurgery, Beckman Research Institute at City of Hope, 1500 East Duarte Road, Duarte, California 91010, United States
| | - Jacob M. Berlin
- Department of Neurosciences, Department of Molecular Medicine, and Division of Neurosurgery, Beckman Research Institute at City of Hope, 1500 East Duarte Road, Duarte, California 91010, United States
- Address correspondence to ,
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