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Lefebvre A, Marhfor S, Baert G, Deleporte P, Grolez GP, Boileau M, Morales O, Vignoud S, Delhem N, Mortier L, Dewalle AS. Photodynamic Therapy Using a Rose-Bengal Photosensitizer for Hepatocellular Carcinoma Treatment: Proposition for a Novel Green LED-Based Device for In Vitro Investigation. Biomedicines 2024; 12:2120. [PMID: 39335633 PMCID: PMC11428738 DOI: 10.3390/biomedicines12092120] [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: 07/23/2024] [Revised: 09/04/2024] [Accepted: 09/10/2024] [Indexed: 09/30/2024] Open
Abstract
Hepatocellular carcinoma (HCC) is one of the most common cancers worldwide. Despite new treatments, the HCC rate remains important, making it necessary to develop novel therapeutic strategies. Photodynamic therapy (PDT) using a Rose-Bengal (RB) photosensitizer (RB-PDT) could be a promising approach for liver tumor treatment. However, the lack of standardization in preclinical research and the diversity of illumination parameters used make comparison difficult across studies. This work presents and characterizes a novel illumination device based on one green light-emitting diode (CELL-LED-550/3) dedicated to an in vitro RB-PDT. The device was demonstrated to deliver a low average irradiance of 0.62 mW/cm2 over the 96 wells of a multi-well plate. Thermal characterization showed that illumination does not cause cell heating and can be performed inside an incubator, allowing a more rigorous assessment of cell viability after PDT. An in vitro cytotoxic study of the RB-PDT on an HCC cell line (HepG2) demonstrated that RB-PDT induces a significant decrease in cell viability: almost all the cells died after a light dose irradiation of 0.3 J/cm2 using 75 µM of RB (<10% of viability). In conclusion, the RB-PDT could be a therapeutic option to treat unresectable liver lesions and subclinical disease remaining in the post-resection tumor surgical margin.
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Affiliation(s)
- Anthony Lefebvre
- Inserm, CHU Lille, U1189-ONCO-THAI-Assisted Laser Therapy and Immunotherapy for Oncology, University of Lille, 59000 Lille, France
| | - Smail Marhfor
- Inserm, CHU Lille, U1189-ONCO-THAI-Assisted Laser Therapy and Immunotherapy for Oncology, University of Lille, 59000 Lille, France
- CEA, LETI, University of Grenoble Alpes, 38000 Grenoble, France
| | - Gregory Baert
- Inserm, CHU Lille, U1189-ONCO-THAI-Assisted Laser Therapy and Immunotherapy for Oncology, University of Lille, 59000 Lille, France
| | - Pascal Deleporte
- Inserm, CHU Lille, U1189-ONCO-THAI-Assisted Laser Therapy and Immunotherapy for Oncology, University of Lille, 59000 Lille, France
| | - Guillaume Paul Grolez
- Inserm, CHU Lille, U1189-ONCO-THAI-Assisted Laser Therapy and Immunotherapy for Oncology, University of Lille, 59000 Lille, France
| | - Marie Boileau
- Inserm, CHU Lille, U1189-ONCO-THAI-Assisted Laser Therapy and Immunotherapy for Oncology, University of Lille, 59000 Lille, France
- Department of Dermatology, Claude Huriez Hospital, CHU Lille, 59000 Lille, France
| | - Olivier Morales
- Inserm, CHU Lille, U1189-ONCO-THAI-Assisted Laser Therapy and Immunotherapy for Oncology, University of Lille, 59000 Lille, France
- CNRS, Inserm, CHU Lille, UMR9020-U1277-CANTHER-Cancer Heterogeneity Plasticity and Resistance to Therapies, University of Lille, 59000 Lille, France
| | | | - Nadira Delhem
- Inserm, CHU Lille, U1189-ONCO-THAI-Assisted Laser Therapy and Immunotherapy for Oncology, University of Lille, 59000 Lille, France
| | - Laurent Mortier
- Inserm, CHU Lille, U1189-ONCO-THAI-Assisted Laser Therapy and Immunotherapy for Oncology, University of Lille, 59000 Lille, France
- Department of Dermatology, Claude Huriez Hospital, CHU Lille, 59000 Lille, France
| | - Anne-Sophie Dewalle
- Inserm, CHU Lille, U1189-ONCO-THAI-Assisted Laser Therapy and Immunotherapy for Oncology, University of Lille, 59000 Lille, France
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Body N, Lefebvre C, Eeckhout S, Léonard AS, Troian-Gautier L, Hermans S, Riant O. Structure-Activity Relationship of Benzophenazine Derivatives for Homogeneous and Heterogenized Photooxygenation Catalysis. Chemistry 2024; 30:e202400242. [PMID: 38805006 DOI: 10.1002/chem.202400242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2024] [Revised: 05/27/2024] [Accepted: 05/28/2024] [Indexed: 05/29/2024]
Abstract
Singlet oxygen is a powerful oxidant used in various applications, such as organic synthesis, medicine, and environmental remediation. Organic and inorganic photosensitizers are commonly used to generate this reactive species through energy transfer with the triplet ground state of oxygen. We describe here a series of novel benzophenazine derivatives as a promising class of photosensitizers for singlet oxygen photosensitization. In this study, we investigated the structure-activity relationship of these benzophenazine derivatives. Akin to a molecular compass, the southern fragment was first functionalized with either aromatic tertiary amines, alkyl tertiary amines, aromatic sulfur groups, alkyl sulfur groups, or cyclic ethers. Enhanced photophysical properties (in terms of triplet excited-state lifetime, absorption wavelength, triplet state energy, and O2 quenching capabilities) were obtained with cyclic ether and sulfur groups. Conversely, the presence of an amine moiety was detrimental to the photocatalysts. The western and northern fragments were also investigated and slightly undesirable to negligible changes in photophysical properties were observed. The most promising candidate was then immobilized on silica nanoparticles and its photoactivity was evaluated in the citronellol photooxidation reaction. A high NMR yield of 97 % in desired product was obtained, with only a slight decrease over several recycling runs (85 % in the fourth run). These results provide insights into the design of efficient photosensitizers for singlet oxygen generation and the development of heterogeneous systems.
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Affiliation(s)
- Nathalie Body
- Université catholique de Louvain (UCLouvain), Institut de la Matière Condensée et des Nanosciences (IMCN), Molecular Chemistry, Materials and Catalysis (MOST), Place Louis Pasteur 1, bte L4.01.02, 1348, Louvain-la-Neuve, Belgium
| | - Corentin Lefebvre
- Université catholique de Louvain (UCLouvain), Institut de la Matière Condensée et des Nanosciences (IMCN), Molecular Chemistry, Materials and Catalysis (MOST), Place Louis Pasteur 1, bte L4.01.02, 1348, Louvain-la-Neuve, Belgium
| | - Sarah Eeckhout
- Université catholique de Louvain (UCLouvain), Institut de la Matière Condensée et des Nanosciences (IMCN), Molecular Chemistry, Materials and Catalysis (MOST), Place Louis Pasteur 1, bte L4.01.02, 1348, Louvain-la-Neuve, Belgium
| | - Anne-Sophie Léonard
- Université catholique de Louvain (UCLouvain), Institut de la Matière Condensée et des Nanosciences (IMCN), Molecular Chemistry, Materials and Catalysis (MOST), Place Louis Pasteur 1, bte L4.01.02, 1348, Louvain-la-Neuve, Belgium
| | - Ludovic Troian-Gautier
- Université catholique de Louvain (UCLouvain), Institut de la Matière Condensée et des Nanosciences (IMCN), Molecular Chemistry, Materials and Catalysis (MOST), Place Louis Pasteur 1, bte L4.01.02, 1348, Louvain-la-Neuve, Belgium
- Wel Research Institute, Avenue Pasteur 6, 1300, Wavre, Belgium
| | - Sophie Hermans
- Université catholique de Louvain (UCLouvain), Institut de la Matière Condensée et des Nanosciences (IMCN), Molecular Chemistry, Materials and Catalysis (MOST), Place Louis Pasteur 1, bte L4.01.02, 1348, Louvain-la-Neuve, Belgium
| | - Olivier Riant
- Université catholique de Louvain (UCLouvain), Institut de la Matière Condensée et des Nanosciences (IMCN), Molecular Chemistry, Materials and Catalysis (MOST), Place Louis Pasteur 1, bte L4.01.02, 1348, Louvain-la-Neuve, Belgium
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Uddin MMN, Bekmukhametova A, Antony A, Barman SK, Houang J, Wu MJ, Hook J, George L, Wuhrer R, Mawad D, Ta D, Lauto A. Photodynamic Treatment of Human Breast and Prostate Cancer Cells Using Rose Bengal-Encapsulated Nanoparticles. Molecules 2023; 28:6901. [PMID: 37836744 PMCID: PMC10574360 DOI: 10.3390/molecules28196901] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 09/28/2023] [Accepted: 09/29/2023] [Indexed: 10/15/2023] Open
Abstract
Cancer, a prominent cause of death, presents treatment challenges, including high dosage requirements, drug resistance, poor tumour penetration and systemic toxicity in traditional chemotherapy. Photodynamic therapy, using photosensitizers like rose bengal (RB) with a green laser, shows promise against breast cancer cells in vitro. However, the hydrophilic RB struggles to efficiently penetrate the tumour site due to the unique clinical microenvironment, aggregating around rather than entering cancer cells. In this study, we have synthesized and characterized RB-encapsulated chitosan nanoparticles with a peak particle size of ~200 nm. These nanoparticles are readily internalized by cells and, in combination with a green laser (λ = 532 nm) killed 94-98% of cultured human breast cancer cells (MCF-7) and prostate cancer cells (PC3) at a low dosage (25 μg/mL RB-nanoparticles, fluence ~126 J/cm2, and irradiance ~0.21 W/cm2). Furthermore, these nanoparticles are not toxic to cultured human normal breast cells (MCF10A), which opens an avenue for translational applications.
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Affiliation(s)
- Mir Muhammad Nasir Uddin
- School of Science, Western Sydney University, Penrith, NSW 2750, Australia
- Department of Pharmacy, Faculty of Biological Sciences, University of Chittagong, Chittagong 4331, Bangladesh
| | | | - Anu Antony
- School of Science, Western Sydney University, Penrith, NSW 2750, Australia
| | - Shital K. Barman
- School of Science, Western Sydney University, Penrith, NSW 2750, Australia
| | - Jessica Houang
- School of Science, Western Sydney University, Penrith, NSW 2750, Australia
| | - Ming J. Wu
- School of Science, Western Sydney University, Penrith, NSW 2750, Australia
| | - James Hook
- School of Chemistry, University of New South Wales, Sydney, NSW 2052, Australia
| | - Laurel George
- Advanced Materials Characterisation Facility, Western Sydney University, Penrith, NSW 2750, Australia
| | - Richard Wuhrer
- Advanced Materials Characterisation Facility, Western Sydney University, Penrith, NSW 2750, Australia
| | - Damia Mawad
- School of Materials Science and Engineering and Australian Centre for NanoMedicine, University of New South Wales, Kensington, NSW 2052, Australia
| | - Daniel Ta
- School of Science, Western Sydney University, Penrith, NSW 2750, Australia
| | - Antonio Lauto
- School of Science, Western Sydney University, Penrith, NSW 2750, Australia
- Biomedical Engineering & Neuroscience Research Group, The MARCS Institute, Western Sydney University, Penrith, NSW 2750, Australia
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Impact of silica nanoparticles architectures on the photosensitization of O2 by immobilized Rose Bengal. J Photochem Photobiol A Chem 2023. [DOI: 10.1016/j.jphotochem.2023.114648] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/02/2023]
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Mori N, Kawasaki H, Nishida E, Kanemoto Y, Miyaji H, Umeda J, Kondoh K. Rose bengal-decorated rice husk-derived silica nanoparticles enhanced singlet oxygen generation for antimicrobial photodynamic inactivation. JOURNAL OF MATERIALS SCIENCE 2023; 58:2801-2813. [PMID: 36713647 PMCID: PMC9875779 DOI: 10.1007/s10853-023-08194-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Accepted: 01/10/2023] [Indexed: 06/18/2023]
Abstract
UNLABELLED Rice husks are well known for their high silica content, and the RH-derived silica nanoparticles (RH NPs) are amorphous and biocompatible; therefore, they are suitable raw materials for biomedical applications. In this study, rose bengal-impregnated rice husk nanoparticles (RB-RH NPs) were prepared for their potential photosensitization and 1O2 generation as antimicrobial photodynamic inactivation. RB is a halogen-xanthene type's photosensitizer showing high singlet oxygen efficiency, and the superior photophysical properties are desirable for RB in the antimicrobial photodynamic inactivation of bacteria. To enhance the binding of anionic RB to RH NPs, we conducted cationization for the RH NPs using polyethyleneimine (PEI). The control of the RB adsorption state on cationic PEI-modified RH NPs was essential for RB RH-NP photosensitizers to obtain efficient 1O2 generation. Minimizing RB aggregation allowed highly efficient 1O2 production from RB-RH NPs at the molar ratio of RB with the PEI, XRB/PEI. = 0.1. The RB-RH NPs have significant antimicrobial activity against Streptococcus mutans compared to free RB after white light irradiation. The RB-RH NP-based antimicrobial photodynamic inactivation can be employed effectively in treating Streptococcus mutans for dental applications. SUPPLEMENTARY INFORMATION The online version contains supplementary material available at 10.1007/s10853-023-08194-z.
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Affiliation(s)
- Nanase Mori
- Department of Chemistry and Materials Engineering, Faculty of Chemistry, Materials and Bioengineering, Kansai University, Suita-shi, Osaka 564-8689 Japan
| | - Hideya Kawasaki
- Department of Chemistry and Materials Engineering, Faculty of Chemistry, Materials and Bioengineering, Kansai University, Suita-shi, Osaka 564-8689 Japan
| | - Erika Nishida
- Department of Periodontology and Endodontology, Faculty of Dental Medicine, Hokkaido University, Sapporo, Hokkaido 060-8586 Japan
| | - Yukimi Kanemoto
- Department of Periodontology and Endodontology, Faculty of Dental Medicine, Hokkaido University, Sapporo, Hokkaido 060-8586 Japan
| | - Hirofumi Miyaji
- Department of Periodontology and Endodontology, Faculty of Dental Medicine, Hokkaido University, Sapporo, Hokkaido 060-8586 Japan
| | - Junko Umeda
- Joining and Welding Research Institute, Osaka University, Ibaraki, 567-0047 Japan
| | - Katsuyoshi Kondoh
- Joining and Welding Research Institute, Osaka University, Ibaraki, 567-0047 Japan
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Sachdeva A, Dhawan D, Jain GK, Yerer MB, Collignon TE, Tewari D, Bishayee A. Novel Strategies for the Bioavailability Augmentation and Efficacy Improvement of Natural Products in Oral Cancer. Cancers (Basel) 2022; 15:cancers15010268. [PMID: 36612264 PMCID: PMC9818473 DOI: 10.3390/cancers15010268] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Revised: 12/21/2022] [Accepted: 12/27/2022] [Indexed: 01/03/2023] Open
Abstract
Oral cancer is emerging as a major cause of mortality globally. Oral cancer occupies a significant proportion of the head and neck, including the cheeks, tongue, and oral cavity. Conventional methods in the treatment of cancer involve surgery, radiotherapy, and immunotherapy, and these have not proven to completely eradicate cancerous cells, may lead to the reoccurrence of oral cancer, and possess numerous adverse side effects. Advancements in novel drug delivery approaches have gained popularity in cancer management with an increase in the number of cases associated with oral cancer. Natural products are potent sources for drug discovery, especially for anticancer drugs. Natural product delivery has major challenges due to its low solubility, poor absorption, inappropriate size, instability, poor permeation, and first-pass metabolism. Therefore, it is of prime importance to investigate novel treatment approaches for the delivery of bioactive natural products. Nanotechnology is an advanced method of delivering cancer therapy with minimal damage to normal cells while targeting cancer cells. Therefore, the present review elaborates on the advancements in novel strategies for natural product delivery that lead to the significant enhancement of bioavailability, in vivo activity, and fewer adverse events for the prevention and treatment of oral cancer. Various approaches to accomplish the desired results involve size reduction, surface property modification, and polymer attachment, which collectively result in the higher stability of the formulation.
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Affiliation(s)
- Alisha Sachdeva
- Department of Pharmaceutics, Delhi Institute of Pharmaceutical Sciences and Research, Delhi Pharmaceutical Sciences and Research University, New Delhi 110 017, India
| | - Dimple Dhawan
- Department of Pharmaceutics, Delhi Institute of Pharmaceutical Sciences and Research, Delhi Pharmaceutical Sciences and Research University, New Delhi 110 017, India
| | - Gaurav K. Jain
- Department of Pharmaceutics, Delhi Institute of Pharmaceutical Sciences and Research, Delhi Pharmaceutical Sciences and Research University, New Delhi 110 017, India
- Center for Advanced Formulation Development, Delhi Pharmaceutical Sciences and Research University, New Delhi 110 017, India
| | - Mükerrem Betül Yerer
- Department of Pharmacology, Faculty of Pharmacy, Erciyes University, Kayseri 38039, Turkey
| | - Taylor E. Collignon
- College of Osteopathic Medicine, Lake Erie College of Osteopathic Medicine, Bradenton, FL 34211, USA
| | - Devesh Tewari
- Department of Pharmacognosy and Phytochemistry, School of Pharmaceutical Sciences, Delhi Pharmaceutical Sciences and Research University, New Delhi 110 017, India
- Correspondence: or (D.T.); or (A.B.)
| | - Anupam Bishayee
- College of Osteopathic Medicine, Lake Erie College of Osteopathic Medicine, Bradenton, FL 34211, USA
- Correspondence: or (D.T.); or (A.B.)
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Dhaini B, Wagner L, Moinard M, Daouk J, Arnoux P, Schohn H, Schneller P, Acherar S, Hamieh T, Frochot C. Importance of Rose Bengal Loaded with Nanoparticles for Anti-Cancer Photodynamic Therapy. Pharmaceuticals (Basel) 2022; 15:ph15091093. [PMID: 36145315 PMCID: PMC9504923 DOI: 10.3390/ph15091093] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 08/09/2022] [Accepted: 08/16/2022] [Indexed: 11/23/2022] Open
Abstract
Rose Bengal (RB) is a photosensitizer (PS) used in anti-cancer and anti-bacterial photodynamic therapy (PDT). The specific excitation of this PS allows the production of singlet oxygen and oxygen reactive species that kill bacteria and tumor cells. In this review, we summarize the history of the use of RB as a PS coupled by chemical or physical means to nanoparticles (NPs). The studies are divided into PDT and PDT excited by X-rays (X-PDT), and subdivided on the basis of NP type. On the basis of the papers examined, it can be noted that RB used as a PS shows remarkable cytotoxicity under the effect of light, and RB loaded onto NPs is an excellent candidate for nanomedical applications in PDT and X-PDT.
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Affiliation(s)
- Batoul Dhaini
- Reactions and Chemical Engineering Laboratory, Université de Lorraine, LRGP-CNRS, F-54000 Nancy, France
| | - Laurène Wagner
- Laboratory of Macromolecular Physical Chemistry, Université de Lorraine, LCPM-CNRS, F-54000 Nancy, France
| | - Morgane Moinard
- Reactions and Chemical Engineering Laboratory, Université de Lorraine, LRGP-CNRS, F-54000 Nancy, France
| | - Joël Daouk
- Department of Biology, Signals and Systems in Cancer and Neuroscience, Université de Lorraine, CRAN-CNRS, F-54000 Nancy, France
| | - Philippe Arnoux
- Reactions and Chemical Engineering Laboratory, Université de Lorraine, LRGP-CNRS, F-54000 Nancy, France
| | - Hervé Schohn
- Department of Biology, Signals and Systems in Cancer and Neuroscience, Université de Lorraine, CRAN-CNRS, F-54000 Nancy, France
| | - Perrine Schneller
- Department of Biology, Signals and Systems in Cancer and Neuroscience, Université de Lorraine, CRAN-CNRS, F-54000 Nancy, France
| | - Samir Acherar
- Laboratory of Macromolecular Physical Chemistry, Université de Lorraine, LCPM-CNRS, F-54000 Nancy, France
| | - Tayssir Hamieh
- Faculty of Science and Engineering, Maastricht University, P.O. Box 616, 6200 MD Maastricht, The Netherlands
- Laboratory of Materials, Catalysis, Environment and Analytical Methods Laboratory (MCEMA), Faculty of Sciences, Lebanese University, Hadath 6573, Lebanon
| | - Céline Frochot
- Reactions and Chemical Engineering Laboratory, Université de Lorraine, LRGP-CNRS, F-54000 Nancy, France
- Correspondence:
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Afarid M, Mahmoodi S, Baghban R. Recent achievements in nano-based technologies for ocular disease diagnosis and treatment, review and update. J Nanobiotechnology 2022; 20:361. [PMID: 35918688 PMCID: PMC9344723 DOI: 10.1186/s12951-022-01567-7] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Accepted: 07/19/2022] [Indexed: 11/10/2022] Open
Abstract
Ocular drug delivery is one of the most challenging endeavors among the various available drug delivery systems. Despite having suitable drugs for the treatment of ophthalmic disease, we have not yet succeeded in achieving a proper drug delivery approach with the least adverse effects. Nanotechnology offers great opportunities to overwhelm the restrictions of common ocular delivery systems, including low therapeutic effects and adverse effects because of invasive surgery or systemic exposure. The present review is dedicated to highlighting and updating the recent achievements of nano-based technologies for ocular disease diagnosis and treatment. While further effort remains, the progress illustrated here might pave the way to new and very useful ocular nanomedicines.
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Affiliation(s)
- Mehrdad Afarid
- Poostchi Ophthalmology Research Center, Department of Ophthalmology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Shirin Mahmoodi
- Department of Medical Biotechnology, School of Medicine, Fasa University of Medical Sciences, Fasa, Iran
| | - Roghayyeh Baghban
- Poostchi Ophthalmology Research Center, Department of Ophthalmology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran.
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Kuryanova AS, Aksenova NA, Savko MA, Glagolev NN, Dubovik AS, Plashchina IG, Timashev PS, Solov’eva AB. Effect of Amphiphilic Polymers on the Activity of Rose Bengal during the Photooxidation of Tryptophan in an Aqueous Medium. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A 2022. [DOI: 10.1134/s0036024422050168] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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10
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Bekmukhametova A, Uddin MMN, Houang J, Malladi C, George L, Wuhrer R, Barman SK, Wu MJ, Mawad D, Lauto A. Fabrication and characterization of chitosan nanoparticles using the coffee-ring effect for photodynamic therapy. Lasers Surg Med 2022; 54:758-766. [PMID: 35195285 DOI: 10.1002/lsm.23530] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2021] [Revised: 01/30/2022] [Accepted: 02/07/2022] [Indexed: 11/11/2022]
Abstract
BACKGROUND AND OBJECTIVES Biocompatible nanoparticles have been increasingly used in a variety of medical applications, including photodynamic therapy. Although the impact of synthesis parameters and purification methods is reported in previous studies, it is still challenging to produce a reliable protocol for the fabrication, purification, and characterization of nanoparticles in the 200-300 nm range that are highly monodisperse for biomedical applications. STUDY DESIGN/MATERIALS AND METHODS We investigated the synthesis of chitosan nanoparticles in the 200-300 nm range by evaluating the chitosan to sodium tripolyphosphate (TPP) mass ratio and acetic acid concentration of the chitosan solution. Chitosan nanoparticles were also crosslinked to rose bengal and incubated with human breast cancer cells (MCF-7) to test photodynamic activity using a green laser (λ = 532 nm, power = 90 mW). RESULTS We established a simple protocol to fabricate and purify biocompatible nanoparticles with the most frequent size occurring between 200 and 300 nm. This was achieved using a chitosan to TPP mass ratio of 5:1 in 1% v/v acetic acid at a pH of 5.5. The protocol involved the formation of nanoparticle coffee rings that showed the particle shape to be spherical in the first approximation. Photodynamic treatment with rose bengal-nanoparticles killed ~98% of cancer cells. CONCLUSION A simple protocol was established to prepare and purify spherical and biocompatible chitosan nanoparticles with a peak size of ~200 nm. These have remarkable antitumor activity when coupled with photodynamic treatment.
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Affiliation(s)
- Alina Bekmukhametova
- School of Science, Western Sydney University, Penrith, New South Wales, Australia
| | - Mir Muhammad Nasir Uddin
- School of Science, Western Sydney University, Penrith, New South Wales, Australia.,Department of Pharmacy, Faculty of Biological Science, University of Chittagong, Chittagong, Bangladesh
| | - Jessica Houang
- School of Science, Western Sydney University, Penrith, New South Wales, Australia
| | - Chandra Malladi
- Molecular Biology and Genetics, Proteomics and Lipidomics Lab, School of Medicine, Western Sydney University, Penrith, New South Wales, Australia
| | - Laurel George
- Advanced Materials Characterisation Facility, Western Sydney University, Penrith, New South Wales, Australia
| | - Richard Wuhrer
- Advanced Materials Characterisation Facility, Western Sydney University, Penrith, New South Wales, Australia
| | - Shital K Barman
- School of Science, Western Sydney University, Penrith, New South Wales, Australia
| | - Ming J Wu
- School of Science, Western Sydney University, Penrith, New South Wales, Australia
| | - Damia Mawad
- School of Materials Science and Engineering and Australian Centre for NanoMedicine, University of New South Wales, Kensington, New South Wales, Australia
| | - Antonio Lauto
- School of Science, Western Sydney University, Penrith, New South Wales, Australia.,Biomedical Engineering & Neuroscience Research Group, The MARCS Institute, University of New South Wales, Penrith, New South Wales, Australia
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Torres-Martínez A, Bedrina B, Falomir E, Marín MJ, Angulo-Pachón CA, Galindo F, Miravet JF. Non-Polymeric Nanogels as Versatile Nanocarriers: Intracellular Transport of the Photosensitizers Rose Bengal and Hypericin for Photodynamic Therapy. ACS APPLIED BIO MATERIALS 2021; 4:3658-3669. [PMID: 35014451 DOI: 10.1021/acsabm.1c00139] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The use of nanocarriers for intracellular transport of actives has been extensively studied in recent years and represents a central area of nanomedicine. The main novelty of this paper lies on the use of nanogels formed by a low-molecular-weight gelator (1). Here, non-polymeric, molecular nanogels are successfully used for intracellular transport of two photodynamic therapy (PDT) agents, Rose Bengal (RB) and hypericin (HYP). The two photosensitizers (PSs) exhibit different drawbacks for their use in clinical applications. HYP is poorly water-soluble, while the cellular uptake of RB is hindered due to its dianionic character at physiological pH values. Additionally, both PSs tend to aggregate precluding an effective PDT. Despite the different nature of these PSs, nanogels from gelator 1 provide, in both cases, an efficient intracellular transport into human colon adenocarcinoma cells (HT-29) and a notably improved PDT efficiency, as assessed by confocal laser scanning microscopy and flow cytometry. Furthermore, no significant dark toxicity of the nanogels is observed, supporting the biocompatibility of the delivery system. The developed nanogels are highly reproducible due to their non-polymeric nature, and their synthesis is easily scaled up. The results presented here thus confirm the potential of molecular nanogels as valuable nanocarriers, capable of entrapping both hydrophobic and hydrophilic actives, for PDT of cancer.
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Affiliation(s)
- Ana Torres-Martínez
- Departament de Química Inorgànica i Orgànica, Universitat Jaume I, Avda. Sos Baynat s/n, Castelló de la Plana 12071, Spain
| | - Begoña Bedrina
- Departament de Química Inorgànica i Orgànica, Universitat Jaume I, Avda. Sos Baynat s/n, Castelló de la Plana 12071, Spain
| | - Eva Falomir
- Departament de Química Inorgànica i Orgànica, Universitat Jaume I, Avda. Sos Baynat s/n, Castelló de la Plana 12071, Spain
| | - María J Marín
- School of Chemistry, University of East Anglia, Norwich Research Park, Norwich NR4 7TJ, U.K
| | - César A Angulo-Pachón
- Departament de Química Inorgànica i Orgànica, Universitat Jaume I, Avda. Sos Baynat s/n, Castelló de la Plana 12071, Spain
| | - Francisco Galindo
- Departament de Química Inorgànica i Orgànica, Universitat Jaume I, Avda. Sos Baynat s/n, Castelló de la Plana 12071, Spain
| | - Juan F Miravet
- Departament de Química Inorgànica i Orgànica, Universitat Jaume I, Avda. Sos Baynat s/n, Castelló de la Plana 12071, Spain
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12
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Zakir M, Khurshid A, Khan MI, Khattak A, Khan MA. The application of aluminium phthalocyanine AlPs-4-mediated photodynamic therapy against human soft tissue sarcoma (RMS) cell line. J PORPHYR PHTHALOCYA 2020. [DOI: 10.1142/s1088424621500012] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
The main challenge in the cancer treatment is the on-target drug delivery to the affected cells. Various therapies have been designed to target the affected cells efficiently but still the success is awaited. An iron and cobalt nanocomposite for the effective drug delivery to target cells was designed. The photodynamic effect of anticancer drugs loaded with iron oxide and cobalt ferrite nanomaterials coated with polyvinyl alcohol (PVA) was studied. The iron oxide nanoparticles (IONPs) and cobalt ferrite (CF) NPs without the loaded drugs were characterized by UV, XRD, FTIR, SEM and EDX techniques. The photodynamic effect of the photosensitizer, doxorubicin, and dacarbazine loaded nanomaterials were screened against human rhabdomyosarcoma (RMS) cells after incubation for 3 h, 24 h, and 48 h using MTT assay. The combination of photodynamic therapy (PDT) with chemo drugs is studied over different doses. When RMS cells were exposed to nanomaterials loaded with chemo drugs and PDT alone, it resulted in less cell killing compared to chemo drugs followed by PDT. These results revealed that in the case of combined treatment (combination therapy) the cell viability decreases as compared to individual treatment (monotherapy). The in vitro studies showed positive results which give a new pathway for the in vivo studies.
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Affiliation(s)
- Muhammad Zakir
- Department of Chemistry, Kohat University of Science and Technology, Kohat-26000, Pakistan
| | - Ahmat Khurshid
- Department of Physics and Applied Mathematics, Pakistan Institute of Engineering and Applied, Sciences (PIEAS), Islamabad, 45650, Pakistan
| | - Muhammad Iqbal Khan
- Department of Chemistry, Kohat University of Science and Technology, Kohat-26000, Pakistan
| | - Asma Khattak
- Department of Zoology, Kohat University of Science and Technology, Kohat-26000, Pakistan
| | - Murad Ali Khan
- Department of Chemistry, Kohat University of Science and Technology, Kohat-26000, Pakistan
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13
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Shumatbaeva AM, Morozova JE, Syakaev VV, Shalaeva YV, Sapunova AS, Voloshina AD, Gubaidullin AT, Bazanova OB, Babaev VM, Nizameev IR, Kadirov MK, Antipin IS. The pH-responsive calix[4]resorcinarene-mPEG conjugates bearing acylhydrazone bonds: Synthesis and study of the potential as supramolecular drug delivery systems. Colloids Surf A Physicochem Eng Asp 2020. [DOI: 10.1016/j.colsurfa.2020.124453] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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14
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Soria-Castro SM, Lebeau B, Cormier M, Neunlist S, Daou TJ, Goddard JP. Organic/Inorganic Heterogeneous Silica-Based Photoredox Catalyst for Aza-Henry Reactions. European J Org Chem 2019. [DOI: 10.1002/ejoc.201901382] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Silvia M. Soria-Castro
- Université de Haute-Alsace (UHA); Université de Strasbourg; CNRS; Laboratoire d'Innovation Moléculaire et Applications (LIMA) UMR 7042; 68100 Mulhouse France
- Université de Haute Alsace (UHA); CNRS; Axe Matériaux à Porosité Contrôlée (MPC); Institut de Science des Matériaux de Mulhouse (IS2M), UMR 7361; 68100 Mulhouse France
- Université de Strasbourg; 67000 Strasbourg France
| | - Bénédicte Lebeau
- Université de Haute Alsace (UHA); CNRS; Axe Matériaux à Porosité Contrôlée (MPC); Institut de Science des Matériaux de Mulhouse (IS2M), UMR 7361; 68100 Mulhouse France
- Université de Strasbourg; 67000 Strasbourg France
| | - Morgan Cormier
- Université de Haute-Alsace (UHA); Université de Strasbourg; CNRS; Laboratoire d'Innovation Moléculaire et Applications (LIMA) UMR 7042; 68100 Mulhouse France
| | - Serge Neunlist
- Université de Haute-Alsace (UHA); Université de Strasbourg; CNRS; Laboratoire d'Innovation Moléculaire et Applications (LIMA) UMR 7042; 68100 Mulhouse France
| | - T. Jean Daou
- Université de Haute Alsace (UHA); CNRS; Axe Matériaux à Porosité Contrôlée (MPC); Institut de Science des Matériaux de Mulhouse (IS2M), UMR 7361; 68100 Mulhouse France
- Université de Strasbourg; 67000 Strasbourg France
| | - Jean-Philippe Goddard
- Université de Haute-Alsace (UHA); Université de Strasbourg; CNRS; Laboratoire d'Innovation Moléculaire et Applications (LIMA) UMR 7042; 68100 Mulhouse France
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15
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Sztandera K, Gorzkiewicz M, Klajnert-Maculewicz B. Nanocarriers in photodynamic therapy-in vitro and in vivo studies. WILEY INTERDISCIPLINARY REVIEWS-NANOMEDICINE AND NANOBIOTECHNOLOGY 2019; 12:e1509. [PMID: 31692285 DOI: 10.1002/wnan.1599] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Revised: 09/14/2019] [Accepted: 09/19/2019] [Indexed: 01/16/2023]
Abstract
Photodynamic therapy (PDT) is a minimally invasive technique which has proven to be successful in the treatment of several types of tumors. This relatively simple method exploits three inseparable elements: phototoxic compound (photosensitizer [PS]), light source, and oxygen. Upon irradiation by light with specified wavelength, PS generates reactive oxygen species, which starts the cascade of reactions leading to cell death. The positive therapeutic outcome of PDT may be limited due to several aspects, including low water solubility of PSs, hampering their effective administration and blood circulation, as well as low tumor specificity, inefficient cellular uptake and activation energies requiring prolonged illumination times. One of the promising approaches to overcome these obstacles involves the use of carrier systems modulating pharmacokinetics and pharmacodynamics of the PSs. In the present review, we summarized current in vitro and in vivo studies regarding the use of nanoparticles as potential delivery devices for PSs to enhance their cellular uptake and cytotoxic properties, and thus-the therapeutic outcome of PDT. This article is categorized under: Therapeutic Approaches and Drug Discovery > Emerging Technologies Nanotechnology Approaches to Biology > Nanoscale Systems in Biology Therapeutic Approaches and Drug Discovery > Nanomedicine for Oncologic Disease.
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Affiliation(s)
- Krzysztof Sztandera
- Department of General Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, Lodz, Poland
| | - Michał Gorzkiewicz
- Department of General Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, Lodz, Poland
| | - Barbara Klajnert-Maculewicz
- Department of General Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, Lodz, Poland.,Leibniz Institute of Polymer Research Dresden, Dresden, Germany
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16
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R Mokoena D, P George B, Abrahamse H. Enhancing Breast Cancer Treatment Using a Combination of Cannabidiol and Gold Nanoparticles for Photodynamic Therapy. Int J Mol Sci 2019; 20:E4771. [PMID: 31561450 PMCID: PMC6801525 DOI: 10.3390/ijms20194771] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2019] [Revised: 09/17/2019] [Accepted: 09/19/2019] [Indexed: 12/19/2022] Open
Abstract
Indisputably, cancer is a global crisis that requires immediate intervention. Despite the use of conventional treatments over the past decades, it is acceptable to admit that these are expensive, invasive, associated with many side effects and, therefore, a reduced quality of life. One of the most possible solutions to this could be the use of gold nanoparticle (AuNP) conjugated photodynamic therapy (PDT) in combination with cannabidiol (CBD), a Cannabis derivative from the Cannabis sativa. Since the use of Cannabis has always been associated with recreation and psychoactive qualities, the positive effects of Cannabis or its derivatives on cancer treatment have been misunderstood and hence misinterpreted. On the other hand, AuNP-PDT is the most favoured form of treatment for cancer, due to its augmented specificity and minimal risk of side effects compared to conventional treatments. However, its use requires the consideration of several physical, biologic, pharmacologic and immunological factors, which may hinder its effectiveness if not taken into consideration. In this review, the role of gold nanoparticle mediated PDT combined with CBD treatment on breast cancer cells will be deliberated.
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Affiliation(s)
- Dimakatso R Mokoena
- Laser Research Centre, Faculty of Health Sciences, University of Johannesburg, P.O. Box: 17011, Johannesburg 2028, South Africa.
| | - Blassan P George
- Laser Research Centre, Faculty of Health Sciences, University of Johannesburg, P.O. Box: 17011, Johannesburg 2028, South Africa.
| | - Heidi Abrahamse
- Laser Research Centre, Faculty of Health Sciences, University of Johannesburg, P.O. Box: 17011, Johannesburg 2028, South Africa.
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17
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Vanerio N, Stijnen M, de Mol BA, Kock LM. Biomedical Applications of Photo- and Sono-Activated Rose Bengal: A Review. PHOTOBIOMODULATION PHOTOMEDICINE AND LASER SURGERY 2019; 37:383-394. [DOI: 10.1089/photob.2018.4604] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Noemi Vanerio
- LifeTec Group BV, Eindhoven, The Netherlands
- Department of Cardiothoracic Surgery & Cardiovascular Sciences, Amsterdam University Medical Center, Amsterdam, The Netherlands
| | | | - Bas A.J.M. de Mol
- Department of Cardiothoracic Surgery & Cardiovascular Sciences, Amsterdam University Medical Center, Amsterdam, The Netherlands
| | - Linda M. Kock
- LifeTec Group BV, Eindhoven, The Netherlands
- Department of Biomedical Engineering, Eindhoven University of Technology, Eindhoven, The Netherlands
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18
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Xia Y, Padmanabhan P, Sarangapani S, Gulyás B, Vadakke Matham M. Bifunctional Fluorescent/Raman Nanoprobe for the Early Detection of Amyloid. Sci Rep 2019; 9:8497. [PMID: 31186449 PMCID: PMC6560097 DOI: 10.1038/s41598-019-43288-2] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Accepted: 03/27/2019] [Indexed: 11/09/2022] Open
Abstract
One of the pathological hallmarks of Alzheimer's disease (AD) is the abnormal aggregation of amyloid beta (Aβ) peptides. Therefore the detection of Aβ peptides and imaging of amyloid plaques are considered as promising diagnostic methods for AD. Here we report a bifunctional nanoprobe prepared by conjugating gold nanoparticles (AuNPs) with Rose Bengal (RB) dye. RB is chosen due to its unique Raman fingerprints and affinity with Aβ peptides. After the conjugation, Raman signals of RB were significantly enhanced due to the surface-enhanced Raman scattering (SERS) effect. Upon binding with Aβ42 peptides, a spectrum change was detected, and the magnitude of the spectrum changes can be correlated with the concentration of target peptides. The peptide/probe interaction also induced a remarkable enhancement in the probes' fluorescence emission. This fluorescence enhancement was further utilized to image amyloid plaques in the brain slices from transgenic mice. In this study, the RB-AuNPs were used for both SERS-based detection of Aβ42 peptides and fluorescence-based imaging of amyloid plaques. Compared to monofunctional probes, the multifunctional probe is capable to provide more comprehensive pathophysiological information, and therefore, the implementation of such multifunctional amyloid probes is expected to help the investigation of amyloid aggregation and the early diagnosis of AD.
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Affiliation(s)
- Yang Xia
- School of Mechanical and Aerospace Engineering, Center for Optical and Laser Engineering (COLE), Nanyang Technological University (NTU), Singapore, 639798, Singapore.,Lee Kong Chian School of Medicine, Nanyang Technological University (NTU), Singapore, 637553, Singapore
| | - Parasuraman Padmanabhan
- Lee Kong Chian School of Medicine, Nanyang Technological University (NTU), Singapore, 637553, Singapore.
| | - Sreelatha Sarangapani
- School of Mechanical and Aerospace Engineering, Center for Optical and Laser Engineering (COLE), Nanyang Technological University (NTU), Singapore, 639798, Singapore
| | - Balázs Gulyás
- Lee Kong Chian School of Medicine, Nanyang Technological University (NTU), Singapore, 637553, Singapore
| | - Murukeshan Vadakke Matham
- School of Mechanical and Aerospace Engineering, Center for Optical and Laser Engineering (COLE), Nanyang Technological University (NTU), Singapore, 639798, Singapore.
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19
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Chang YC, del Valle AC, Yeh HP, He Y, Huang YF. Development of Photo-Activated ROS-Responsive Nanoplatform as a Dual-Functional Drug Carrier in Combinational Chemo-Photodynamic Therapy. Front Chem 2019; 6:647. [PMID: 30687694 PMCID: PMC6334191 DOI: 10.3389/fchem.2018.00647] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2018] [Accepted: 12/12/2018] [Indexed: 11/13/2022] Open
Abstract
Dual functional drug carrier has been a modern strategy in cancer therapy because it is a platform to elicit additive and synergistic effects through combination therapy. Photo-activated external stimuli such as reactive oxygen species (ROS) also ensure adequate drug delivery in a precise temporal and spatial manner. However, current ROS-responsive drug delivery systems usually require tedious synthetic procedures. A facile one-pot approach has been reported herein, to obtain self-assembled polymeric nanocarriers (NCs) for simultaneous paclitaxel (PTX)- and Rose Bengal (RB)-loading to achieve combined chemo-photodynamic therapy and controlled drug release in responsive to a light-induced ROS stimulus. To encapsulate these hydrophobic and hydrophilic drugs, chitosan (CTS), branched polyethylenimine (bPEI) and polyvinyl alcohol (PVA) were selected and fabricated into nanoblended matrices through an oil-in-water emulsion method. The amphiphilic properties of CTS permit simultaneous entrapment of PTX and RB, while the encapsulation efficiency of RB was further improved by increasing the amount of short-chain bPEI. During the one-step assembly process, bovine serum albumin (BSA) was also added to condense the cationic tripolymer mixtures into more stable nanocarriers (BNCs). Hyaluronic acid (HA) was subsequently grafted onto the surface of BNCs through electrostatic interaction, leading to the formation of HA-BSA/CTS/PVA/bPEI-blended nanocarriers (HBNCs) to achieve an efficient prostate-cancer-cell uptake. Importantly, in response to external light irradiation, HBNCs become destabilized owing to the RB-mediated photodynamic action. It allows an on-demand dual-payload release to evoke a simultaneous photodynamic and chemo treatment for cancer cell eradication. Thus, HBNCs present a new promising approach that exhibits a specific vulnerability to RB-induced photosensitization. The consequent dual-cargo release is also expected to successfully combat cancer through a synergistic anti-tumor effect.
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Affiliation(s)
- Yu-Cheng Chang
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu, Taiwan
| | - Andrea C. del Valle
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu, Taiwan
| | - Huan-Pu Yeh
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu, Taiwan
| | - Yue He
- Laboratory of Quality & Safety Risk Assessment for Citrus Products, Ministry of Agriculture, Citrus Research Institute, Southwest University, Chongqing, China
| | - Yu-Fen Huang
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu, Taiwan
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20
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Ludvíková L, Štacko P, Sperry J, Klán P. Photosensitized Cross-Linking of Tryptophan and Tyrosine Derivatives by Rose Bengal in Aqueous Solutions. J Org Chem 2018; 83:10835-10844. [DOI: 10.1021/acs.joc.8b01545] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Lucie Ludvíková
- Department of Chemistry and RECETOX, Faculty of Science, Masaryk University, Kamenice 5, 625 00 Brno, Czech Republic
| | - Peter Štacko
- Department of Chemistry and RECETOX, Faculty of Science, Masaryk University, Kamenice 5, 625 00 Brno, Czech Republic
| | - Jonathan Sperry
- School of Chemical Sciences, University of Auckland, 23 Symonds Street, Auckland, New Zealand
| | - Petr Klán
- Department of Chemistry and RECETOX, Faculty of Science, Masaryk University, Kamenice 5, 625 00 Brno, Czech Republic
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21
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Yeh HP, Del Valle AC, Syu MC, Qian Y, Chang YC, Huang YF. A New Photosensitized Oxidation-Responsive Nanoplatform for Controlled Drug Release and Photodynamic Cancer Therapy. ACS APPLIED MATERIALS & INTERFACES 2018; 10:21160-21172. [PMID: 29863836 DOI: 10.1021/acsami.8b05205] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Abnormal biochemical alteration such as unbalanced reactive oxygen species (ROS) levels has been considered as a potential disease-specific trigger to deliver therapeutics to target sites. However, in view of their minute variations in concentration, short lifetimes, and limited ranges of action, in situ generation of ROS with specific manipulations should be more effective for ROS-responsive drug delivery. Here we present a new delivery nanoplatform for photodynamic therapy (PDT) with on-demand drug release regulated by light irradiation. Rose bengal (RB) molecules, which exhibit a high yield of ROS generation, were encapsulated in a mixture of chitosan (CTS), poly(vinyl alcohol) (PVA), and branched polyethylenimine ( bPEI) with hydrophobic iron oxide nanoparticles through an oil-in-water emulsion method. The as-prepared magnetic nanoclusters (MNCs) with a tripolymer coating displayed high water dispersibility, efficient cellular uptake, and the cationic groups of CTS and bPEI were effective for RB loading through electrostatic interaction. The encapsulation efficiency of RB in MNCs could be further improved by increasing the amount of short bPEI chains. During the photodynamic process, controlled release of the host molecules (i.e., RB) or guest molecules (i.e., paclitaxel) from the bPEI-based nanoplatform was achieved simultaneously through a photooxidation action sensitized by RB. This approach promises specific payload release and highly effective PDT or PDT combined therapy in various cancer cell lines including breast (MCF-7 and multidrug resistant MCF-7 subline), SKOV-3 ovarian, and Tramp-C1 prostate. In in vivo xenograft studies, the nanoengineered light-switchable carrier also greatly augments its PDT efficacy against multidrug resistant MCF-7/MDR tumor as compared with free drugs. All the above findings suggest that the substantial effects of enhanced drug distribution for efficient cancer therapy was achieved with this smart nanocarrier capable of on demand drug release and delivery, thus exerting its therapeutic activity to a greater extent.
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Affiliation(s)
- Huan-Pu Yeh
- Department of Biomedical Engineering and Environmental Sciences , National Tsing Hua University , Hsinchu , Taiwan ROC
| | - Andrea C Del Valle
- Department of Biomedical Engineering and Environmental Sciences , National Tsing Hua University , Hsinchu , Taiwan ROC
| | - Ming-Chen Syu
- Department of Biomedical Engineering and Environmental Sciences , National Tsing Hua University , Hsinchu , Taiwan ROC
| | - Yu Qian
- Department of Biomedical Engineering and Environmental Sciences , National Tsing Hua University , Hsinchu , Taiwan ROC
| | - Yu-Cheng Chang
- Department of Biomedical Engineering and Environmental Sciences , National Tsing Hua University , Hsinchu , Taiwan ROC
| | - Yu-Fen Huang
- Department of Biomedical Engineering and Environmental Sciences , National Tsing Hua University , Hsinchu , Taiwan ROC
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22
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Li C, Lin F, Sun W, Wu FG, Yang H, Lv R, Zhu YX, Jia HR, Wang C, Gao G, Chen Z. Self-Assembled Rose Bengal-Exopolysaccharide Nanoparticles for Improved Photodynamic Inactivation of Bacteria by Enhancing Singlet Oxygen Generation Directly in the Solution. ACS APPLIED MATERIALS & INTERFACES 2018; 10:16715-16722. [PMID: 29641169 DOI: 10.1021/acsami.8b01545] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
It is of great value to develop new antibacterial photodynamic therapy (PDT) strategies to improve antibacterial PDT efficacy of noncationic photosensitizers without introducing cytotoxicity, which is a great challenge for current leading efforts on antimicrobial PDT based on cell surface engineering. In this research, the hydrophobic and anionic photosensitizer rose bengal (RB) was chemically conjugated with bacterial exopolysaccharide (EPS) to generate an amphiphilic and negatively charged compound EPS-RB that could self-assemble into nanoparticles (NPs) in solution. These EPS-RB NPs possessed an increased singlet oxygen generation property in solution. As a result, EPS-RB exhibited improved photoinactivation for both Gram-negative and Gram-positive bacteria, leading to a record low RB working concentration, 8 μM or 500 nM for Escherichia coli or Staphylococcus aureus, respectively. Upon light irradiation, more EPS-RB bound to the cell surface and penetrated into bacteria than RB, with EPS-RB staying around the cell surface of the most irradiated E. coli while entering all irradiated S. aureus. Both scanning electron microscopy and fluorescence confocal imaging results show that the cell membrane of E. coli was damaged heavily but not S. aureus. All of these observations indicate that both the enhanced singlet oxygen production of EPS-RB NPs in solution and their consequently increased membrane binding and cellular penetration into the bacteria through the damaged cell membrane contribute to their significantly improved bacterial photoinactivation efficiency. In addition, EPS-RB has low cytotoxicity and negligible hemolytic activity, showing great biocompatibility. Therefore, the construction of EPS-RB provides a new strategy for the PDT effectiveness improvement of the separated cell/sensitizer systems and thus the design of next-generation antimicrobial agents.
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Affiliation(s)
- Chengcheng Li
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering , Southeast University , Nanjing 210096 , China
| | - Fengming Lin
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering , Southeast University , Nanjing 210096 , China
| | - Wei Sun
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering , Southeast University , Nanjing 210096 , China
| | - Fu-Gen Wu
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering , Southeast University , Nanjing 210096 , China
| | - Hang Yang
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering , Southeast University , Nanjing 210096 , China
| | - Roujing Lv
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering , Southeast University , Nanjing 210096 , China
| | - Ya-Xuan Zhu
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering , Southeast University , Nanjing 210096 , China
| | - Hao-Ran Jia
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering , Southeast University , Nanjing 210096 , China
| | - Chu Wang
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering , Southeast University , Nanjing 210096 , China
| | - Ge Gao
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering , Southeast University , Nanjing 210096 , China
| | - Zhan Chen
- Department of Chemistry , University of Michigan , 930 North University Avenue , Ann Arbor , Michigan 48109 , United States
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23
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Loya-Castro MF, Sánchez-Mejía M, Sánchez-Ramírez DR, Domínguez-Ríos R, Escareño N, Oceguera-Basurto PE, Figueroa-Ochoa ÉB, Quintero A, del Toro-Arreola A, Topete A, Daneri-Navarro A. Preparation of PLGA/Rose Bengal colloidal particles by double emulsion and layer-by-layer for breast cancer treatment. J Colloid Interface Sci 2018; 518:122-129. [DOI: 10.1016/j.jcis.2018.02.013] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2017] [Revised: 02/02/2018] [Accepted: 02/04/2018] [Indexed: 12/27/2022]
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Kumar S, Meena VK, Hazari PP, Sharma SK, Sharma RK. Rose Bengal attached and dextran coated gadolinium oxide nanoparticles for potential diagnostic imaging applications. Eur J Pharm Sci 2018. [PMID: 29522909 DOI: 10.1016/j.ejps.2018.03.008] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
We report here, reverse micelle mediated synthesis of multifunctional dextran (dex) coated Gd2O3 nanoparticles (NPs) carrying rose bengal (RB) dye for magnetic resonance and optical imaging. The diameter of these RB attached dex coated Gd2O3 NPs (Gd-dex-RB NPs) was found to be ~17 nm as measured by TEM. NMR line broadening effect on the surrounding water protons affirmed the paramagnetic nature of these NPs. Optical properties of Gd-dex-RB NPs were validated by UV-Vis and fluorescence spectroscopy. Time dependent release profile of RB from NPs at two different pH of 7.4 and 5.0 revealed that these NPs behave as slow releasing system. In-vitro study revealed that NPs are efficiently taken up by cells and show optical activity in cellular environment. In vitro cell viability (SRB) assay was performed on cancerous (A-549, U-87) and normal (HEK-293) cell lines, showed the absence of cytotoxic effect of Gd-dex-RB NPs. Therefore, such multifunctional NPs can be efficiently used for bio-imaging and optical tracking.
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Affiliation(s)
- Shailja Kumar
- Nanotechnology and Drug Delivery Research Lab, Department of Chemistry, University of Delhi, Delhi, India
| | - Virendra Kumar Meena
- Nanotechnology and Drug Delivery Research Lab, Department of Chemistry, University of Delhi, Delhi, India; Institute of Nuclear Medicine and Allied Sciences, DRDO, Ministry of Defense, Delhi, India
| | - Puja Panwar Hazari
- Institute of Nuclear Medicine and Allied Sciences, DRDO, Ministry of Defense, Delhi, India
| | - Surinder Kumar Sharma
- Department of Pharmaceutical Sciences, Lovely professional University, Jalandhar, Punjab, India
| | - Rakesh Kumar Sharma
- Nanotechnology and Drug Delivery Research Lab, Department of Chemistry, University of Delhi, Delhi, India.
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25
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Epelde-Elezcano N, Prieto-Montero R, Martínez-Martínez V, Ortiz MJ, Prieto-Castañeda A, Peña-Cabrera E, Belmonte-Vázquez JL, López-Arbeloa I, Brown R, Lacombe S. Adapting BODIPYs to singlet oxygen production on silica nanoparticles. Phys Chem Chem Phys 2018; 19:13746-13755. [PMID: 28503687 DOI: 10.1039/c7cp01333g] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
A modified Stöber method is used to synthesize spherical core-shell silica nanoparticles (NPs) with an external surface functionalized by amino groups and with an average size around 50 nm. Fluorescent dyes and photosensitizers of singlet oxygen were fixed, either separately or conjointly, respectively in the core or in the shell. Rhodamines were encapsulated in the core with relatively high fluorescence quantum yields (Φfl ≥ 0.3), allowing fluorescence tracking of the particles. Various photosensitizers of singlet oxygen (PS) were covalenty coupled to the shell, allowing singlet oxygen production. The stability of NP suspensions strongly deteriorated upon grafting the PS, affecting their apparent singlet oxygen quantum yields. Agglomeration of NPs depends both on the type and on the amount of grafted photosensitizer. New, lab-made, halogenated 4,4-difluoro-4-bora-3a,4a-diaza-s-indacenes (BODIPY) grafted to the NPs achieved higher singlet oxygen quantum yields (ΦΔ ∼ 0.35-0.40) than Rose Bengal (RB) grafted NPs (ΦΔ ∼ 0.10-0.27). Finally, we combined both fluorescence and PS functions in the same NP, namely a rhodamine in the silica core and a BODIPY or RB grafted in the shell, achieving the performance Φfl ∼ 0.10-0.20, ΦΔ ∼ 0.16-0.25 with a single excitation wavelength. Thus, proper choice of the dyes, of their concentrations inside and on the NPs and the grafting method enables fine-tuning of singlet oxygen production and fluorescence emission.
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Affiliation(s)
- Nerea Epelde-Elezcano
- Departamento de Química Física, Universidad del País Vasco-EHU, Apartado 644, 48080, Bilbao, Spain.
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Sarafbidabad M, Parsaee Z, Noor Mohammadi Z, Karachi N, Razavi R. Novel double layer film composed of reduced graphene oxide and Rose Bengal dye: design, fabrication and evaluation as an efficient chemosensor for silver(i) detection. NEW J CHEM 2018. [DOI: 10.1039/c8nj01796d] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel silver-chemosensor fabricated with reduced graphene oxide and Rose Bengal (RB) based on the interaction of Ag+ and RB.
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Affiliation(s)
- Mohsen Sarafbidabad
- Department of Biomedical Engineering
- Faculty of Engineering
- University of Isfahan
- Isfahan
- Iran
| | - Zohreh Parsaee
- Young Researchers and Elite Club
- Bushehr Branch
- Islamic Azad University
- Bushehr
- Iran
| | - Zahra Noor Mohammadi
- Department of Chemistry
- Khozestan Science and Research Branch
- Islamic Azad University
- Khozestan
- Iran
| | - Nima Karachi
- Department of Chemistry
- Islamic Azad University
- Marvdasht
- Iran
| | - Razieh Razavi
- Department of Chemistry
- Faculty of Science
- University of Jiroft
- Jiroft
- Iran
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Larue L, Ben Mihoub A, Youssef Z, Colombeau L, Acherar S, André JC, Arnoux P, Baros F, Vermandel M, Frochot C. Using X-rays in photodynamic therapy: an overview. Photochem Photobiol Sci 2018; 17:1612-1650. [DOI: 10.1039/c8pp00112j] [Citation(s) in RCA: 72] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Photodynamic therapy is a therapeutic option to treat cancer and other diseases.
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Yan T, Cheng J, Liu Z, Cheng F, Wei X, He J. pH-Sensitive mesoporous silica nanoparticles for chemo-photodynamic combination therapy. Colloids Surf B Biointerfaces 2018; 161:442-448. [DOI: 10.1016/j.colsurfb.2017.11.006] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2017] [Revised: 10/21/2017] [Accepted: 11/01/2017] [Indexed: 01/08/2023]
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Rosa-Pardo I, Roig-Pons M, Heredia AA, Usagre JV, Ribera A, Galian RE, Pérez-Prieto J. Fe 3O 4@Au@mSiO 2 as an enhancing nanoplatform for Rose Bengal photodynamic activity. NANOSCALE 2017; 9:10388-10396. [PMID: 28702636 DOI: 10.1039/c7nr00449d] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
A novel nanoplatform composed of three types of materials with different functionalities, specifically core-shell Fe3O4@Au nanoparticles encapsulated near the outer surface of mesoporous silica (mSiO2) nanoparticles, has been successfully synthesised and used to enhance the efficiency of a photosensitiser, namely Rose Bengal, in singlet oxygen generation. Fe3O4 is responsible for the unusual location of the Fe3O4@Au nanoparticle, while the plasmonic shell acts as an optical antenna. In addition, the mesoporous silica matrix firmly encapsulates Rose Bengal by chemical bonding inside the pores, thus guaranteeing its photostability, and in turn making the nanosystem biocompatible. Moreover, the silica surface of the nanoplatform ensures further functionalisation on demand.
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Affiliation(s)
- I Rosa-Pardo
- ICMOL, Universidad de Valencia, Catedrático José Beltrán 2, 46980, Paterna, Valencia, Spain.
| | - M Roig-Pons
- ICMOL, Universidad de Valencia, Catedrático José Beltrán 2, 46980, Paterna, Valencia, Spain.
| | - A A Heredia
- ICMOL, Universidad de Valencia, Catedrático José Beltrán 2, 46980, Paterna, Valencia, Spain.
| | - J V Usagre
- ICMOL, Universidad de Valencia, Catedrático José Beltrán 2, 46980, Paterna, Valencia, Spain.
| | - A Ribera
- ICMOL, Universidad de Valencia, Catedrático José Beltrán 2, 46980, Paterna, Valencia, Spain.
| | - R E Galian
- ICMOL, Universidad de Valencia, Catedrático José Beltrán 2, 46980, Paterna, Valencia, Spain.
| | - J Pérez-Prieto
- ICMOL, Universidad de Valencia, Catedrático José Beltrán 2, 46980, Paterna, Valencia, Spain.
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Sanchez-Vazquez B, Amaral AJR, Yu DG, Pasparakis G, Williams GR. Electrosprayed Janus Particles for Combined Photo-Chemotherapy. AAPS PharmSciTech 2017; 18:1460-1468. [PMID: 27696302 DOI: 10.1208/s12249-016-0638-4] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2016] [Accepted: 09/21/2016] [Indexed: 11/30/2022] Open
Abstract
This work is a proof of concept study establishing the potential of electrosprayed Janus particles for combined photodynamic therapy-chemotherapy. Sub-micron-sized particles of polyvinylpyrrolidone containing either an anti-cancer drug (carmofur) or a photosensitiser (rose bengal; RB), and Janus particles containing both in separate compartments were prepared. The functional components were present in the amorphous form in all the particles, and infrared spectroscopy indicated that intermolecular interactions formed between the different species. In vitro drug release studies showed that both carmofur and RB were released at approximately the same rate, with dissolution complete after around 250 min. Cytotoxicity studies were undertaken on model human dermal fibroblasts (HDF) and lung cancer (A549) cells, and the influence of light on cell death explored. Formulations containing carmofur as the sole active ingredient were highly toxic to both cell lines, with or without a light treatment. The RB formulations were non-toxic to HDF when no light was applied, and with photo-treatment caused large amounts of cell death for both A549 and HDF cells. The Janus formulation containing both RB and carmofur was non-toxic to HDF without light, and only slightly toxic with the photo-treatment. In contrast, it was hugely toxic to A549 cells when light was applied. The Janus particles are thus highly selective for cancer cells, and it is hence proposed that such electrosprayed particles containing both a chemotherapeutic agent and photosensitiser have great potential in combined chemotherapy/photodynamic therapy.
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Sneider A, VanDyke D, Paliwal S, Rai P. Remotely Triggered Nano-Theranostics For Cancer Applications. Nanotheranostics 2017; 1:1-22. [PMID: 28191450 PMCID: PMC5298883 DOI: 10.7150/ntno.17109] [Citation(s) in RCA: 63] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2016] [Accepted: 10/16/2016] [Indexed: 01/02/2023] Open
Abstract
Nanotechnology has enabled the development of smart theranostic platforms that can concurrently diagnose disease, start primary treatment, monitor response, and, if required, initiate secondary treatments. Recent in vivo experiments demonstrate the promise of using theranostics in the clinic. In this paper, we review the use of remotely triggered theranostic nanoparticles for cancer applications, focusing heavily on advances in the past five years. Remote triggering mechanisms covered include photodynamic, photothermal, phototriggered chemotherapeutic release, ultrasound, electro-thermal, magneto-thermal, X-ray, and radiofrequency therapies. Each section includes a brief overview of the triggering mechanism and summarizes the variety of nanoparticles employed in each method. Emphasis in each category is placed on nano-theranostics with in vivo success. Some of the nanotheranostic platforms highlighted include photoactivatable multi-inhibitor nanoliposomes, plasmonic nanobubbles, reduced graphene oxide-iron oxide nanoparticles, photoswitching nanoparticles, multispectral optoacoustic tomography using indocyanine green, low temperature sensitive liposomes, and receptor-targeted iron oxide nanoparticles loaded with gemcitabine. The studies reviewed here provide strong evidence that the field of nanotheranostics is rapidly evolving. Such nanoplatforms may soon enable unique advances in the clinical management of cancer. However, reproducibility in the synthesis procedures of such "smart" platforms that lend themselves to easy scale-up in their manufacturing, as well as the development of new and improved models of cancer that are more predictive of human responses, need to happen soon for this field to make a rapid clinical impact.
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Affiliation(s)
| | | | | | - Prakash Rai
- ✉ Corresponding author: Prakash Rai, Phone 978-934-4971,
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Silica nanoparticles doped with anthraquinone for lung cancer phototherapy. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2016; 165:1-9. [DOI: 10.1016/j.jphotobiol.2016.10.008] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2016] [Accepted: 10/11/2016] [Indexed: 11/24/2022]
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Arriagada F, Correa O, Günther G, Nonell S, Mura F, Olea-Azar C, Morales J. Morin Flavonoid Adsorbed on Mesoporous Silica, a Novel Antioxidant Nanomaterial. PLoS One 2016; 11:e0164507. [PMID: 27812111 PMCID: PMC5094702 DOI: 10.1371/journal.pone.0164507] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2016] [Accepted: 09/26/2016] [Indexed: 12/25/2022] Open
Abstract
Morin (2´,3, 4´,5,7-pentahydroxyflavone) is a flavonoid with several beneficial health effects. However, its poor water solubility and it sensitivity to several environmental factors avoid its use in applications like pharmaceutical and cosmetic. In this work, we synthetized morin-modified mesoporous silica nanoparticles (AMSNPs-MOR) as useful material to be used as potential nanoantioxidant. To achieve this, we characterized its adsorption kinetics, isotherm and the antioxidant capacity as hydroxyl radical (HO•) scavenger and singlet oxygen (1O2) quencher. The experimental data could be well fitted with Langmuir, Freundlich and Temkin isotherm models, besides the pseudo-second order kinetics model. The total quenching rate constant obtained for singlet oxygen deactivation by AMSNPs-MOR was one order of magnitude lower than the morin rate constant reported previously in neat solvents and lipid membranes. The AMSNPs-MOR have good antioxidant properties by itself and exhibit a synergic effect with morin on the antioxidant property against hydroxyl radical. This effect, in the range of concentrations studied, was increased when the amount of morin adsorbed increased.
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Affiliation(s)
- Francisco Arriagada
- Departamento de Ciencias y Tecnología Farmacéuticas, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Sergio Livingstone, 1007, Independencia, Santiago, Chile
| | - Olosmira Correa
- Departamento de Ciencias y Tecnología Farmacéuticas, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Sergio Livingstone, 1007, Independencia, Santiago, Chile
| | - Germán Günther
- Departamento de Química Orgánica y Fisicoquímica, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Sergio Livingstone, 1007, Independencia, Santiago, Chile
| | - Santi Nonell
- Institut Químic de Sarriá (IQS), University Ramón Llull, Via Augusta, 390, 08017, Barcelona, Spain
| | - Francisco Mura
- Departamento de Química Inorgánica y Analítica, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Sergio Livingstone, 1007, Independencia, Santiago, Chile
| | - Claudio Olea-Azar
- Departamento de Química Inorgánica y Analítica, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Sergio Livingstone, 1007, Independencia, Santiago, Chile
| | - Javier Morales
- Departamento de Ciencias y Tecnología Farmacéuticas, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Sergio Livingstone, 1007, Independencia, Santiago, Chile
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Gehring J, Trepka B, Klinkenberg N, Bronner H, Schleheck D, Polarz S. Sunlight-Triggered Nanoparticle Synergy: Teamwork of Reactive Oxygen Species and Nitric Oxide Released from Mesoporous Organosilica with Advanced Antibacterial Activity. J Am Chem Soc 2016; 138:3076-84. [DOI: 10.1021/jacs.5b12073] [Citation(s) in RCA: 121] [Impact Index Per Article: 15.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Julia Gehring
- Department of Chemistry and ‡Department of
Biology, University of Konstanz, Konstanz D-78457, Germany
| | - Bastian Trepka
- Department of Chemistry and ‡Department of
Biology, University of Konstanz, Konstanz D-78457, Germany
| | - Nele Klinkenberg
- Department of Chemistry and ‡Department of
Biology, University of Konstanz, Konstanz D-78457, Germany
| | - Hannah Bronner
- Department of Chemistry and ‡Department of
Biology, University of Konstanz, Konstanz D-78457, Germany
| | - David Schleheck
- Department of Chemistry and ‡Department of
Biology, University of Konstanz, Konstanz D-78457, Germany
| | - Sebastian Polarz
- Department of Chemistry and ‡Department of
Biology, University of Konstanz, Konstanz D-78457, Germany
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Li Y, Tang J, Pan DX, Sun LD, Chen C, Liu Y, Wang YF, Shi S, Yan CH. A Versatile Imaging and Therapeutic Platform Based on Dual-Band Luminescent Lanthanide Nanoparticles toward Tumor Metastasis Inhibition. ACS NANO 2016; 10:2766-73. [PMID: 26794807 DOI: 10.1021/acsnano.5b07873] [Citation(s) in RCA: 97] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Upconversion (UC) luminescent lanthanide nanoparticles (LNPs) are expected to play an important role in imaging and photodynamic therapy (PDT) in vitro and in vivo. However, with the absorption of UC emissions by photosensitizers (PSs) to generate singlet oxygen ((1)O2) for PDT, the imaging signals from LNPs are significantly weakened. It is important to activate another imaging route to track the location of the LNPs during PDT process. In this work, Nd(3+)-sensitized LNPs with dual-band visible and near-infrared (NIR) emissions under single 808 nm excitation were reported to address this issue. The UC emissions in green could trigger covalently linked rose bengal (RB) molecules for efficient PDT, and NIR emissions deriving from Yb(3+) and magnetic resonance imaging (MRI) were used for imaging simultaneously. Notably, the designed therapeutic platform could further effectively avoid the overheating effect induced by the laser irradiation, due to the minimized absorption of biological media at around 808 nm. TdT-mediated dUTP nick end labeling (TUNEL) assay showed serious cell apoptosis in the tumor after PDT for 2 weeks, leading to an effective tumor inhibition rate of 67%. Benefit from the PDT, the tumor growth-induced liver and spleen burdens were largely attenuated, and the liver injury was also alleviated. More importantly, pulmonary and hepatic tumor metastases were significantly reduced after PDT. The Nd(3+)-sensitized LNPs provide a multifunctional nanoplatform for NIR light-assisted PDT with minimized heating effect and an effective inhibition of tumor growth and metastasis.
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Affiliation(s)
- Yang Li
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Rare Earth Materials Chemistry and Applications, PKU-HKU Joint Laboratory in Rare Earth Materials and Bioinorganic Chemistry, College of Chemistry and Molecular Engineering, Peking University , Beijing 100871, China
| | - Jinglong Tang
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety & CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology of China , Beijing 100190, China
| | - Dong-Xu Pan
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Rare Earth Materials Chemistry and Applications, PKU-HKU Joint Laboratory in Rare Earth Materials and Bioinorganic Chemistry, College of Chemistry and Molecular Engineering, Peking University , Beijing 100871, China
| | - Ling-Dong Sun
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Rare Earth Materials Chemistry and Applications, PKU-HKU Joint Laboratory in Rare Earth Materials and Bioinorganic Chemistry, College of Chemistry and Molecular Engineering, Peking University , Beijing 100871, China
| | - Chunying Chen
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety & CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology of China , Beijing 100190, China
| | - Ying Liu
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety & CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology of China , Beijing 100190, China
| | - Ye-Fu Wang
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Rare Earth Materials Chemistry and Applications, PKU-HKU Joint Laboratory in Rare Earth Materials and Bioinorganic Chemistry, College of Chemistry and Molecular Engineering, Peking University , Beijing 100871, China
| | - Shuo Shi
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Rare Earth Materials Chemistry and Applications, PKU-HKU Joint Laboratory in Rare Earth Materials and Bioinorganic Chemistry, College of Chemistry and Molecular Engineering, Peking University , Beijing 100871, China
| | - Chun-Hua Yan
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Rare Earth Materials Chemistry and Applications, PKU-HKU Joint Laboratory in Rare Earth Materials and Bioinorganic Chemistry, College of Chemistry and Molecular Engineering, Peking University , Beijing 100871, China
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Bhaumik J, Kirar S, Laha JK. Theranostic Nanoconjugates of Tetrapyrrolic Macrocycles and Their Applications in Photodynamic Therapy. OXIDATIVE STRESS IN APPLIED BASIC RESEARCH AND CLINICAL PRACTICE 2016. [DOI: 10.1007/978-3-319-30705-3_22] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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Chaudhuri S, Sardar S, Bagchi D, Dutta S, Debnath S, Saha P, Lemmens P, Pal SK. Photoinduced Dynamics and Toxicity of a Cancer Drug in Proximity of Inorganic Nanoparticles under Visible Light. Chemphyschem 2015; 17:270-7. [PMID: 26563628 DOI: 10.1002/cphc.201500905] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2015] [Revised: 11/06/2015] [Indexed: 12/22/2022]
Abstract
Drug sensitization with various inorganic nanoparticles (NPs) has proved to be a promising and an emergent concept in the field of nanomedicine. Rose bengal (RB), a notable photosensitizer, triggers the formation of reactive oxygen species under green-light irradiation, and consequently, it induces cytotoxicity and cell death. In the present study, the effect of photoinduced dynamics of RB upon complexation with semiconductor zinc oxide NPs is explored. To accomplish this, we successfully synthesized nanohybrids of RB with ZnO NPs with a particle size of 24 nm and optically characterized them. The uniform size and integrity of the particles were confirmed by high-resolution transmission electron microscopy. UV/Vis absorption and steady-state fluorescence studies reveal the formation of the nanohybrids. ultrafast picosecond-resolved fluorescence studies of RB-ZnO nanohybrids demonstrate an efficient electron transfer from the photoexcited drug to the semiconductor NPs. Picosecond-resolved Förster resonance energy transfer from ZnO NPs to RB unravel the proximity of the drug to the semiconductor at the molecular level. The photoinduced ROS formation was monitored using a dichlorofluorescin oxidation assay, which is a conventional oxidative stress indicator. It is observed that the ROS generation under green light illumination is greater at low concentrations of RB-ZnO nanohybrids compared with free RB. Substantial photodynamic activity of the nanohybrids in bacterial and fungal cell lines validated the in vitro toxicity results. Furthermore, the cytotoxic effect of the nanohybrids in HeLa cells, which was monitored by MTT assay, is also noteworthy.
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Affiliation(s)
- Siddhi Chaudhuri
- Department of Chemical, Biological & Macromolecular Sciences, S. N. Bose National Centre for Basic Sciences, Block JD, Sector III, Salt Lake, Kolkata, 700098, India
| | - Samim Sardar
- Department of Chemical, Biological & Macromolecular Sciences, S. N. Bose National Centre for Basic Sciences, Block JD, Sector III, Salt Lake, Kolkata, 700098, India
| | - Damayanti Bagchi
- Department of Chemical, Biological & Macromolecular Sciences, S. N. Bose National Centre for Basic Sciences, Block JD, Sector III, Salt Lake, Kolkata, 700098, India
| | - Shreyasi Dutta
- Department of Chemical, Biological & Macromolecular Sciences, S. N. Bose National Centre for Basic Sciences, Block JD, Sector III, Salt Lake, Kolkata, 700098, India
| | - Sushanta Debnath
- Crystallography and Molecular Biology Division, Saha Institute of Nuclear Physics, Sector I, Block AF, Bidhannagar, Kolkata, 700064, India
| | - Partha Saha
- Crystallography and Molecular Biology Division, Saha Institute of Nuclear Physics, Sector I, Block AF, Bidhannagar, Kolkata, 700064, India
| | - Peter Lemmens
- Institute for Condensed Matter Physics, TU Braunschweig, Mendelssohnstraße 3, 38106, Braunschweig, Germany
| | - Samir Kumar Pal
- Department of Chemical, Biological & Macromolecular Sciences, S. N. Bose National Centre for Basic Sciences, Block JD, Sector III, Salt Lake, Kolkata, 700098, India.
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Gu C, Yang J, Yuan Y, Yao M, Zhang X. The safety of photochemical tissue bonding for treating damaged corneal epithelium using limbal stem cells pre-cultured on human amniotic membrane. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2015; 148:59-65. [PMID: 25889946 DOI: 10.1016/j.jphotobiol.2015.03.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2014] [Revised: 02/18/2015] [Accepted: 03/08/2015] [Indexed: 12/24/2022]
Abstract
We previously demonstrated the feasibility of treating limbal stem cell deficiency (LSCD) with limbal stem cells (LSCs) pre-cultured on human amniotic membrane (HAM), using a suture-free technique called photochemical tissue bonding (PTB). However, important issues regarding the safety and the influence of PTB on LSCs have not been elucidated. In this study, LSCs, isolated from rabbit eyes and identified by cell markers, were labeled with BrdU prior to cultivation on de-epithelialized HAM to fabricate grafts. Rabbit LSCD models were created and randomly divided into groups for transplantation of fabricated grafts using sutures or PTB (n=10). Possible phototoxicity of PTB to LSCs was analyzed in vitro and in vivo. Restoration of corneal epithelium was evaluated at 28 days after grafting. Our results showed that phototoxicity did not occur in the LSCs cultured on HAM after PTB in vitro. Transplantation of grafts with PTB restored the damaged cornea epithelium effectively and no significant influences on LSC characteristics were found in both sutured and PTB groups. BrdU positive cells were tracked at 28 days post grafting suggesting that the restored epithelium was derived from the in vitro fabricated HAM/LSC graft. These data suggest that PTB is a safe and potential strategy for securing LSC/HAM grafts that produces with better outcomes than sutured attachment.
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Affiliation(s)
- Chuan Gu
- Department of Burn and Plastic Surgery, No. 3 People's Hospital, and Institute of Traumatic Medicine, School of Medicine, Shanghai Jiao Tong University, Shanghai 201900, China; Wellman Center for Photomedicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA; Department of Plastic and Reconstructive Surgery, Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200011, China
| | - Jun Yang
- Department of Plastic and Reconstructive Surgery, Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200011, China
| | - Ying Yuan
- Department of Ophthalmology, Chengyang People's Hospital, Qingdao City, Shandong Province 266109, China
| | - Min Yao
- Department of Burn and Plastic Surgery, No. 3 People's Hospital, and Institute of Traumatic Medicine, School of Medicine, Shanghai Jiao Tong University, Shanghai 201900, China; Wellman Center for Photomedicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA
| | - Xiong Zhang
- Department of Burn and Plastic Surgery, No. 3 People's Hospital, and Institute of Traumatic Medicine, School of Medicine, Shanghai Jiao Tong University, Shanghai 201900, China.
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Gupta P, Das K, Sharma M. Effect of Complexing with Silica Nanoparticles on the Phototoxicty of Some Photosensitisers. ACTA ACUST UNITED AC 2014. [DOI: 10.1016/j.proeng.2013.09.249] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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40
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Rose-bengal-conjugated gold nanorods for in vivo photodynamic and photothermal oral cancer therapies. Biomaterials 2013; 35:1954-66. [PMID: 24331707 DOI: 10.1016/j.biomaterials.2013.11.066] [Citation(s) in RCA: 219] [Impact Index Per Article: 19.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2013] [Accepted: 11/21/2013] [Indexed: 01/14/2023]
Abstract
Gold nanorods (GNRs) conjugated with rose bengal (RB) molecules exhibit efficient singlet oxygen generation when illuminated by 532 nm green light and high photothermal efficiency under 810 nm near-infrared (NIR) irradiation. In vitro experiments show that reactive oxygen species generated by green light and hyperthermia produced by NIR light constitute two different mechanisms for cancer cell death. The RB-GNRs also exhibit improved photodynamic efficacy by enhancing the uptake of RB by cancer cells. In vivo experiments are conducted on hamster cheek pouches to resemble the human oral cancer conditions more accurately to assess the therapeutic effectiveness. Compared to the single photodynamic therapy (PDT) or photothermal therapy (PTT), the RB-GNRs with combined PDT-PTT capabilities provide better therapeutic effects against oral cancer and have large potential in cancer treatment.
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Simon T, Boca-Farcau S, Gabudean AM, Baldeck P, Astilean S. LED-activated methylene blue-loaded Pluronic-nanogold hybrids for in vitro photodynamic therapy. JOURNAL OF BIOPHOTONICS 2013; 6:950-959. [PMID: 23893922 DOI: 10.1002/jbio.201300058] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2013] [Revised: 07/02/2013] [Accepted: 07/03/2013] [Indexed: 06/02/2023]
Abstract
In this work we introduce a new class of multifunctional photodynamic agents based on the coupling of photosensitizer molecules with noble metal nanoparticles, which can be efficiently activated under low light intensity. The favourable modification of the photophysical properties of methylene blue (MB) in MB-loaded Pluronic-nanogold hybrids (Au-PF127-MB) increases the probability of singlet oxygen generation, which in turn allows the use of a light emitting diode (LED) irradiation source instead of commonly used, more invasive lasers. In this regard, Au-PF127-MB treated human lung carcinoma cells (HTB 177) were irradiated at different light doses, using a 660 nm LED source, the results indicating a dose dependent therapeutic effect, decreasing the cell viability down to 13%. Owing to their effectiveness, biocompatibility and integrated imaging and therapeutic functionalities, Au-PF127-MB could represent an important development in the field of biophotonic applications.
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Affiliation(s)
- Timea Simon
- Babes-Bolyai University, Faculty of Physics and Interdisciplinary Research Institute in Bio-Nano-Sciences, Nanobiophotonics and Laser Microspectroscopy Center, M. Kogalniceanu Str. 1, 400084, Cluj-Napoca, Romania; Laboratoire Interdisciplinaire de Physique, UMR 5588, CNRS, Universite Joseph Fourier and CNRS, 140 rue de la Physique, 87 38402, Saint Martin d'Heres cedex, France
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Mooi SM, Heyne B. Amplified Production of Singlet Oxygen in Aqueous Solution Using Metal Enhancement Effects. Photochem Photobiol 2013; 90:85-91. [DOI: 10.1111/php.12176] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2013] [Accepted: 09/20/2013] [Indexed: 01/05/2023]
Affiliation(s)
- Sara M. Mooi
- University of Calgary; Chemistry Department; Calgary Canada
| | - Belinda Heyne
- University of Calgary; Chemistry Department; Calgary Canada
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Pessoni L, Lacombe S, Billon L, Brown R, Save M. Photoactive, porous honeycomb films prepared from Rose Bengal-grafted polystyrene. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2013; 29:10264-10271. [PMID: 23855310 DOI: 10.1021/la402079z] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Honeycomb-structured porous polymer films based on photosensitizer-grafted polystyrene are prepared through the breath figure process. Rose Bengal (RB) photosensitizer is first attached to a well-defined poly(styrene-stat-4-vinylbenzyl chloride) statistical copolymer, synthesized by nitroxide-mediated radical polymerization. The RB grafted poly(styrene-stat-4-vinylbenzyl chloride) (ca. 20,000 g mol(-1) molar mass, 1.2 dispersity) leads to porous polymer films, with a hexagonal pore pattern, while a simple mixture of poly(styrene-stat-4-vinylbenzyl chloride) and the insoluble RB photosensitizer produced unstructured, nonporous films. The RB-grafted honeycomb films, compared with the corresponding nonporous flat films, are more efficient for oxidation of organic molecules via singlet oxygen production at a liquid/solid interface. The oxidations of 1,5-dihydroxynaphthalene to juglone and α-terpinene to ascaridole are followed in ethanol in the presence of both types of films. Oxidation of the organic molecules is a factor 5 greater with honeycomb compared to the nonporous films. This gain is ascribed to two factors: the specific location of the polar photosensitizer at the film interface and the greater exchange surface, as revealed by fluorescence and scanning electron microscopies.
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Affiliation(s)
- Laurence Pessoni
- CNRS, University of Pau and Pays de l'Adour, UMR 5254, IPREM, Equipe de Physique et Chimie des Polymères, 2 avenue du Président Angot, Pau, F-64053, France
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44
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Enhancement of phototoxicity of curcumin in human oral cancer cells using silica nanoparticles as delivery vehicle. Lasers Med Sci 2013; 29:645-52. [DOI: 10.1007/s10103-013-1357-7] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2012] [Accepted: 05/23/2013] [Indexed: 11/27/2022]
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Pileggi G, Wataha JC, Girard M, Grad I, Schrenzel J, Lange N, Bouillaguet S. Blue light-mediated inactivation of Enterococcus faecalis in vitro. Photodiagnosis Photodyn Ther 2013; 10:134-40. [DOI: 10.1016/j.pdpdt.2012.11.002] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2012] [Revised: 11/02/2012] [Accepted: 11/04/2012] [Indexed: 01/25/2023]
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Wang JH, Wang B, Liu Q, Li Q, Huang H, Song L, Sun TY, Wang H, Yu XF, Li C, Chu PK. Bimodal optical diagnostics of oral cancer based on Rose Bengal conjugated gold nanorod platform. Biomaterials 2013; 34:4274-83. [PMID: 23489924 DOI: 10.1016/j.biomaterials.2013.02.012] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2013] [Accepted: 02/06/2013] [Indexed: 01/20/2023]
Abstract
Early detection of cancer often requires time consuming protocols and expensive instrumentation. To address these limitations, a Rose Bengal conjugated gold nanorod (RB-GNR) platform is developed for optical detection of cancer cells. The GNRs are modified by poly(allylamine hydrochloride) and conjugated with RB molecules to produce RB-GNRs which exhibit strong optical absorption in the near-infrared (NIR) region, good stability in aqueous solution, low cytotoxicity, and high specificity to oral cancer cells. The label-free sensing assay utilizes RB-GNRs as the sensing probe and by monitoring the aggregation-induced red-shift in the NIR absorption wavelength, specific and quantitative analysis of the oral cancer cell lysate is accomplished down to a detection limit of 2000 cells/mL. By employing the RB-GNRs as an imaging probe, an imaging assay is established on a home-made NIR absorption imaging system. Based on the NIR absorption by the RB-GNRs specifically conjugated with the oral cancer cells, multi-channel, rapid and quantitative detection of oral cancer cells is demonstrated. The high sensitivity and specificity of the RB-GNR platform as demonstrated by the two complementary assays provide non-invasive optical diagnostics of oral cancer cells enabling convenient screening and monitoring.
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Affiliation(s)
- Jia-Hong Wang
- Key Laboratory of Artificial Micro- and Nano-Structures of Ministry of Education, School of Physics and Technology, Wuhan University, Wuhan 430072, China
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Suarasan S, Focsan M, Maniu D, Astilean S. Gelatin-nanogold bioconjugates as effective plasmonic platforms for SERS detection and tagging. Colloids Surf B Biointerfaces 2012; 103:475-81. [PMID: 23261569 DOI: 10.1016/j.colsurfb.2012.10.046] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2012] [Revised: 10/25/2012] [Accepted: 10/27/2012] [Indexed: 10/27/2022]
Abstract
It is well known that standard citrate-reduced gold nanoparticles (AuNPs) are unstable at high ionic strength solution, which limits their applications in the biomedical field. In this work we present an environmentally friendly approach for the stabilization of citrate-reduced AuNPs in aqueous solution. Specifically, the stability of the AuNPs against salt-induced aggregation was greatly improved in the presence of gelatin biopolymer and stabilization of individual or small assemblies of nanoparticles can be controlled by the amount of gelatin. Furthermore, the gelatin-nanogold bioconjugates were demonstrated to be operational as highly sensitive surface-enhanced Raman scattering (SERS) active substrate for the detection of Rose Bengal fluorophore in solution at very low concentration. The results suggest that such bioconjugates can be successfully employed not only for detection of analytes, but more interestingly for building SERS-active tags in view of imaging purpose. The stabilization of bioconjugates was analyzed by localized surface plasmon resonance spectroscopy (LSPR), transmission electron microscopy (TEM), dynamic light scattering (DLS) and zeta-potential, and the chemical interaction of gelatin with AuNPs was inferred from Fourier transform infrared spectroscopy (FT-IR).
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Affiliation(s)
- Sorina Suarasan
- Nanobiophotonics and Laser Microspectroscopy Center, Interdisciplinary Research Institute in Bio-Nano-Sciences and Faculty of Physics, Babes-Bolyai University, M. Kogalniceanu 1, 400084 Cluj-Napoca, Romania
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