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Sadeghi MS, Sangrizeh FH, Jahani N, Abedin MS, Chaleshgari S, Ardakan AK, Baeelashaki R, Ranjbarpazuki G, Rahmanian P, Zandieh MA, Nabavi N, Aref AR, Salimimoghadam S, Rashidi M, Rezaee A, Hushmandi K. Graphene oxide nanoarchitectures in cancer therapy: Drug and gene delivery, phototherapy, immunotherapy, and vaccine development. ENVIRONMENTAL RESEARCH 2023; 237:117027. [PMID: 37659647 DOI: 10.1016/j.envres.2023.117027] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2023] [Revised: 08/19/2023] [Accepted: 08/29/2023] [Indexed: 09/04/2023]
Abstract
The latest advancements in oncology involves the creation of multifunctional nanostructures. The integration of nanoparticles into the realm of cancer therapy has brought about a transformative shift, revolutionizing the approach to addressing existing challenges and limitations in tumor elimination. This is particularly crucial in combating the emergence of resistance, which has significantly undermined the effectiveness of treatments like chemotherapy and radiotherapy. GO stands as a carbon-derived nanoparticle that is increasingly finding utility across diverse domains, notably in the realm of biomedicine. The utilization of GO nanostructures holds promise in the arena of oncology, enabling precise transportation of drugs and genetic material to targeted sites. GO nanomaterials offer the opportunity to enhance the pharmacokinetic behavior and bioavailability of drugs, with documented instances of these nanocarriers elevating drug accumulation at the tumor location. The GO nanostructures encapsulate genes, shielding them from degradation and facilitating their uptake within cancer cells, thereby promoting efficient gene silencing. The capability of GO to facilitate phototherapy has led to notable advancements in reducing tumor progression. By PDT and PTT combination, GO nanomaterials hold the capacity to diminish tumorigenesis. GO nanomaterials have the potential to trigger both cellular and innate immunity, making them promising contenders for vaccine development. Additionally, types of GO nanoparticles that respond to specific stimuli have been applied in cancer eradication, as well as for the purpose of cancer detection and biomarker diagnosis. Endocytosis serves as the mechanism through which GO nanomaterials are internalized. Given these advantages, the utilization of GO nanomaterials for tumor elimination comes highly recommended.
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Affiliation(s)
- Mohammad Saleh Sadeghi
- Department of Pharmaceutics, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | | | - Negar Jahani
- Faculty of Veterinary Medicine, Islamic Azad University, Science and Research Branch, Tehran, Iran
| | - Mahdi Sadegh Abedin
- Student Research Committee, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Soheila Chaleshgari
- Department of Avian Diseases, Faculty of Veterinary Medicine, Chamran University, Ahvaz, Iran
| | - Alireza Khodaei Ardakan
- Faculty of Veterinary Medicine, Islamic Azad University, Science and Research Branch, Tehran, Iran
| | - Reza Baeelashaki
- Department of Food Hygiene and Quality Control, Division of Animal Feed Hygiene, Faculty of Veterinary Medicine, Islamic Azad University, Shabestar Branch, Shabestar, Iran
| | - Golnaz Ranjbarpazuki
- Student Research Committee, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Parham Rahmanian
- Faculty of Veterinary Medicine, Islamic Azad University, Science and Research Branch, Tehran, Iran
| | - Mohammad Arad Zandieh
- Department of Food Hygiene and Quality Control, Division of Epidemiology, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran
| | - Noushin Nabavi
- Department of Urologic Sciences, University of British Columbia, Vancouver, BC, V5Z 1M9, Canada
| | - Amir Reza Aref
- Department of Cancer Biology, Center for Cancer Systems Biology, Dana-Farber Cancer Institute, Department of Genetics, Harvard Medical School, Boston, MA, USA; Department of Translational Sciences, Xsphera Biosciences Inc. Boston, MA, USA
| | - Shokooh Salimimoghadam
- Department of Biochemistry and Molecular Biology, Faculty of Veterinary Medicine, Shahid Chamran University of Ahvaz, Ahvaz, Iran
| | - Mohsen Rashidi
- Department Pharmacology, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran; The Health of Plant and Livestock Products Research Center, Mazandaran University of Medical Sciences, Sari, Iran.
| | - Aryan Rezaee
- Student Research Committee, School of Medicine, Iran University of Medical Sciences, Tehran, Iran.
| | - Kiavash Hushmandi
- Department of Food Hygiene and Quality Control, Division of Epidemiology, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran.
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2
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Zarepour A, Karasu Ç, Mir Y, Nematollahi MH, Iravani S, Zarrabi A. Graphene- and MXene-based materials for neuroscience: diagnostic and therapeutic applications. Biomater Sci 2023; 11:6687-6710. [PMID: 37646462 DOI: 10.1039/d3bm01114c] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
Abstract
MXenes and graphene are two-dimensional materials that have gained increasing attention in neuroscience, particularly in sensing, theranostics, and biomedical engineering. Various composites of graphene and MXenes with fascinating thermal, optical, magnetic, mechanical, and electrical properties have been introduced to develop advanced nanosystems for diagnostic and therapeutic applications, as exemplified in the case of biosensors for neurotransmitter detection. These biosensors display high sensitivity, selectivity, and stability, making them promising tools for neuroscience research. MXenes have been employed to create high-resolution neural interfaces for neuroelectronic devices, develop neuro-receptor-mediated synapse devices, and stimulate the electrophysiological maturation of neural circuits. On the other hand, graphene/derivatives exhibit therapeutic applicability in neuroscience, as exemplified in the case of graphene oxide for targeted delivery of therapeutic agents to the brain. While MXenes and graphene have potential benefits in neuroscience, there are also challenges/limitations associated with their use, such as toxicity, environmental impacts, and limited understanding of their properties. In addition, large-scale production and commercialization as well as optimization of reaction/synthesis conditions and clinical translation studies are very important aspects. Thus, it is important to consider the use of these materials in neuroscience research and conduct further research to obtain an in-depth understanding of their properties and potential applications. By addressing issues related to biocompatibility, long-term stability, targeted delivery, electrical interfaces, scalability, and cost-effectiveness, MXenes and graphene have the potential to greatly advance the field of neuroscience and pave the way for innovative diagnostic and therapeutic approaches for neurological disorders. Herein, recent advances in therapeutic and diagnostic applications of graphene- and MXene-based materials in neuroscience are discussed, focusing on important challenges and future prospects.
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Affiliation(s)
- Atefeh Zarepour
- Department of Biomedical Engineering, Faculty of Engineering and Natural Sciences, Istinye University, 34396 Istanbul, Turkey.
| | - Çimen Karasu
- Cellular Stress Response and Signal Transduction Research Laboratory, Department of Medical Pharmacology, Faculty of Medicine, Gazi University, 06500 Ankara, Turkey
| | - Yousof Mir
- Applied Cellular and Molecular Research Center, Kerman University of Medical Sciences, Kerman, Iran.
| | - Mohammad Hadi Nematollahi
- Applied Cellular and Molecular Research Center, Kerman University of Medical Sciences, Kerman, Iran.
| | - Siavash Iravani
- Faculty of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, 81746-73461, Isfahan, Iran.
| | - Ali Zarrabi
- Department of Biomedical Engineering, Faculty of Engineering and Natural Sciences, Istinye University, 34396 Istanbul, Turkey.
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Chen X, Zhang L, Wang X, Xu L, Sun J, Liu Y, Liu X, Kalvakolanu DV, Guo B. Stat3 shRNA delivery with folate receptor-modified multi-functionalized graphene oxide particles for combined infrared radiation and gene therapy in hepatocellular carcinoma. Anticancer Drugs 2023; 34:715-724. [PMID: 36729998 DOI: 10.1097/cad.0000000000001461] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
As a vital oncogene, a variety of inhibitors targeting Stat3 and its various upstream signaling pathways has been explored. Since small molecules, peptidomimetics and other peptide inhibitors usually lead to side effects and difficult administration, gene therapeutics that have characteristics of low toxicity and high targeting, make them an attractive alternative for targeting Stat3. A major challenge to this approach is the lack of safe delivery systems for in-vivo applications. Among the various siRNA delivery systems, nanoparticles emerge as a new tool for gene delivery with high biocompatibility, low cost, and minimal toxicity. In this study, we developed a graphene oxide (GO)-based nanocarrier, GO-polyethyleneimine (PEI)-polyethylene glycol (PEG)-folic acid (FA), as a tool targeting for Stat3-specific shRNA to mouse hepatoma cells in vitro and in vivo . Infrared photothermal therapy was combined in vivo since GO has the characteristic of infrared absorbability. Our results suggest a significant tumor growth inhibition after treatment with GO-PEI-PEG-FA- sh-Stat3 combined with infrared photothermal therapy. Thus, GO-PEI-PEG-FA appears to be a novel nano-transformer that could be used in the clinics in future.
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Affiliation(s)
- Xuyang Chen
- Department of Plastic Surgery, China-Japan Union Hospital, Jilin University, Changchun 130033, China
- Department of Pathophysiology, Basic Medical College, Jilin University, Changchun 130021, China
| | - Ling Zhang
- Greenebaum NCI Comprehensive Cancer Center, Department of Microbiology and Immunology University of Maryland School Medicine, Baltimore, Maryland, USA
| | - Xiaoqin Wang
- Department of Plastic Surgery, China-Japan Union Hospital, Jilin University, Changchun 130033, China
| | - Libo Xu
- Department of Plastic Surgery, China-Japan Union Hospital, Jilin University, Changchun 130033, China
| | - Jicheng Sun
- Department of Plastic Surgery, China-Japan Union Hospital, Jilin University, Changchun 130033, China
| | - Yiran Liu
- Department of Plastic Surgery, China-Japan Union Hospital, Jilin University, Changchun 130033, China
| | - Xiaorui Liu
- Department of Plastic Surgery, China-Japan Union Hospital, Jilin University, Changchun 130033, China
| | - Dhan V Kalvakolanu
- Greenebaum NCI Comprehensive Cancer Center, Department of Microbiology and Immunology University of Maryland School Medicine, Baltimore, Maryland, USA
| | - Baofeng Guo
- Department of Plastic Surgery, China-Japan Union Hospital, Jilin University, Changchun 130033, China
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Hosseini SM, Mohammadnejad J, Najafi-Taher R, Zadeh ZB, Tanhaei M, Ramakrishna S. Multifunctional Carbon-Based Nanoparticles: Theranostic Applications in Cancer Therapy and Diagnosis. ACS APPLIED BIO MATERIALS 2023; 6:1323-1338. [PMID: 36921253 DOI: 10.1021/acsabm.2c01000] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/17/2023]
Abstract
Cancer diagnosis and treatment are the most critical challenges in modern medicine. Conventional cancer treatments no longer meet the needs of the health field due to the high rate of mutations and epigenetic factors that have caused drug resistance in tumor cells. Hence, the search for unique methods and factors is quickly expanding. The development of nanotechnology in medicine and the search for a system to integrate treatment and diagnosis to achieve an effective approach to overcome the known limitations of conventional treatment methods have led to the emergence of theranostic nanoparticles and nanosystems based on these nanoparticles. An influential group of these nanoparticles is carbon-based theranostic nanoparticles. These nanoparticles have received significant attention due to their unique properties, such as electrical conductivity, high strength, excellent surface chemistry, and wide range of structural diversity (graphene, nanodiamond, carbon quantum dots, fullerenes, carbon nanotubes, and carbon nanohorns). These nanoparticles were widely used in various fields, such as tissue engineering, drug delivery, imaging, and biosensors. In this review, we discuss in detail the recent features and advances in carbon-based theranostic nanoparticles and the advanced and diverse strategies used to treat diseases with these nanoparticles.
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Affiliation(s)
- Seyed Mohammad Hosseini
- Department of Life Science Engineering Faculty of Modern Science and Technology, Nano Biotechnology Group, University of Tehran, Tehran 1439957131, Iran
| | - Javad Mohammadnejad
- Department of Life Science Engineering Faculty of Modern Science and Technology, Nano Biotechnology Group, University of Tehran, Tehran 1439957131, Iran
| | - Roqya Najafi-Taher
- Department of Medical Nanotechnology, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran 11114115, Iran
| | - Zahra Beiram Zadeh
- Department of Civil & Environmental Engineering, National University of Singapore, 1 Engineering Drive 2, Singapore 117576, Singapore
| | - Mohammad Tanhaei
- Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore 637371, Singapore
| | - Seeram Ramakrishna
- Department of Mechanical Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore 117576, Singapore
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5
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Kaur H, Garg R, Singh S, Jana A, Bathula C, Kim HS, Kumbar SG, Mittal M. Progress and challenges of graphene and its congeners for biomedical applications. J Mol Liq 2022; 368:120703. [PMID: 38130892 PMCID: PMC10735213 DOI: 10.1016/j.molliq.2022.120703] [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] [Indexed: 11/13/2022]
Abstract
Nanomaterials by virtue of their small size and enhanced surface area, present unique physicochemical properties that enjoy widespread applications in bioengineering, biomedicine, biotechnology, disease diagnosis, and therapy. In recent years, graphene and its derivatives have attracted a great deal of attention in various applications, including photovoltaics, electronics, energy storage, catalysis, sensing, and biotechnology owing to their exceptional structural, optical, thermal, mechanical, and electrical. Graphene is a two-dimensional sheet of sp2 hybridized carbon atoms of atomic thickness, which are arranged in a honeycomb crystal lattice structure. Graphene derivatives are graphene oxide (GO) and reduced graphene oxide (rGO), which are highly oxidized and less oxidized forms of graphene, respectively. Another form of graphene is graphene quantum dots (GQDs), having a size of less than 20 nm. Contemporary graphene research focuses on using graphene nanomaterials for biomedical purposes as they have a large surface area for loading biomolecules and medicine and offer the potential for the conjugation of fluorescent dyes or quantum dots for bioimaging. The present review begins with the synthesis, purification, structure, and properties of graphene nanomaterials. Then, we focussed on the biomedical application of graphene nanomaterials with special emphasis on drug delivery, bioimaging, biosensing, tissue engineering, gene delivery, and chemotherapy. The implications of graphene nanomaterials on human health and the environment have also been summarized due to their exposure to their biomedical applications. This review is anticipated to offer useful existing understanding and inspire new concepts to advance secure and effective graphene nanomaterials-based biomedical devices.
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Affiliation(s)
- Harshdeep Kaur
- Department of Chemistry, University institute of science, Chandigarh University, Gharuan, Punjab 140413, India
| | - Rahul Garg
- Department of Chemical Engineering, Indian Institute of Technology Ropar, Nangal Rd, Hussainpur, Rupnagar, Punjab 140001, India
| | - Sajan Singh
- AMBER/School of Chemistry, Trinity College of Dublin, Ireland
| | - Atanu Jana
- Division of Physics and Semiconductor Science, Dongguk University-Seoul, Seoul 04620, South Korea
| | - Chinna Bathula
- Division of Electronics and Electrical Engineering, Dongguk University-Seoul, Seoul 04620, South Korea
| | - Hyun-Seok Kim
- Division of Electronics and Electrical Engineering, Dongguk University-Seoul, Seoul 04620, South Korea
| | - Sangamesh G. Kumbar
- Department of Biomedical Engineering, University of Connecticut, Storrs, CT, USA
| | - Mona Mittal
- Department of Chemistry, University institute of science, Chandigarh University, Gharuan, Punjab 140413, India
- Department of Chemistry, Galgotia college of engineering, Knowledge Park, I, Greater Noida, Uttar Pradesh 201310, India
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Nizami MZI, Yin IX, Lung CYK, Niu JY, Mei ML, Chu CH. In Vitro Studies of Graphene for Management of Dental Caries and Periodontal Disease: A Concise Review. Pharmaceutics 2022; 14:pharmaceutics14101997. [PMID: 36297434 PMCID: PMC9611330 DOI: 10.3390/pharmaceutics14101997] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Revised: 09/07/2022] [Accepted: 09/19/2022] [Indexed: 11/16/2022] Open
Abstract
Graphene is a single-layer two-dimensional carbon-based nanomaterial. It presents as a thin and strong material that has attracted many researchers’ attention. This study provides a concise review of the potential application of graphene materials in caries and periodontal disease management. Pristine or functionalized graphene and its derivatives exhibit favorable physicochemical, mechanical, and morphological properties applicable to biomedical applications. They can be activated and functionalized with metal and metal nanoparticles, polymers, and other small molecules to exhibit multi-differentiation activities, antimicrobial activities, and biocompatibility. They were investigated in preventive dentistry and regenerative dentistry. Graphene materials such as graphene oxide inhibit cariogenic microbes such as Streptococcus mutans. They also inhibit periodontal pathogens that are responsible for periodontitis and root canal infection. Graphene-fluorine promotes enamel and dentin mineralization. These materials were also broadly studied in regenerative dental research, such as dental hard and soft tissue regeneration, as well as periodontal tissue and bone regeneration. Graphene oxide-based materials, such as graphene oxide-fibroin, were reported as promising in tissue engineering for their biocompatibility, bioactivity, and ability to enhance cell proliferation properties in periodontal ligament stem cells. Laboratory research showed that graphene can be used exclusively or by incorporating it into existing dental materials. The success of laboratory studies can translate the application of graphene into clinical use.
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Affiliation(s)
| | - Iris Xiaoxue Yin
- Faculty of Dentistry, University of Hong Kong, Hong Kong SAR 999077, China
| | | | - John Yun Niu
- Faculty of Dentistry, University of Hong Kong, Hong Kong SAR 999077, China
| | - May Lei Mei
- Faculty of Dentistry, University of Otago, Dunedin 9054, New Zealand
| | - Chun Hung Chu
- Faculty of Dentistry, University of Hong Kong, Hong Kong SAR 999077, China
- Correspondence:
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Qin H, Ji Y, Li G, Xu X, Zhang C, Zhong W, Xu S, Yin Y, Song J. MicroRNA-29b/graphene oxide–polyethyleneglycol–polyethylenimine complex incorporated within chitosan hydrogel promotes osteogenesis. Front Chem 2022; 10:958561. [PMID: 35936077 PMCID: PMC9354773 DOI: 10.3389/fchem.2022.958561] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Accepted: 06/30/2022] [Indexed: 11/26/2022] Open
Abstract
MicroRNAs (miRNAs) play a pivotal role in regulating a number of physiologic and pathologic processes including bone marrow mesenchymal stem cell (BMSC) osteogenic differentiation, making them a candidate used to promote osteogenesis. However, due to intrinsic structure and characteristics, “naked” miRNAs are unstable in serum and could not pass across the cellular membrane. Nano delivery systems seem to be a solution to these issues. Recently, graphene oxide (GO)-based nanomaterials are considered to be promising for gene delivery due to their unique physiochemical characteristics such as high surface area, biocompatibility, and easy modification. In this work, a GO-based nanocomplex functionalized by polyethyleneglycol (PEG) and polyethylenimine (PEI) was prepared for loading and delivering miR-29b, which participates in multiple steps of bone formation. The nanocomplex revealed good biocompatibility, miRNA loading capacity, and transfection efficiency. The miR-29b/GO-PEG-PEI nanocomplex was capsulated into chitosan (CS) hydrogel for osteogenesis. In vitro and in vivo evaluation indicated that miR-29b/GO-PEG-PEI@CS composite hydrogel was able to promote BMSC osteogenic differentiation and bone regeneration. All these results indicate that PEG/PEI functionalized GO could serve as a promising candidate for miRNA cellular delivery, and the miR-29b/GO-PEG-PEI@CS hydrogel has the potential for repairing bone defects in vivo.
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Affiliation(s)
- Han Qin
- College of Stomatology, Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China
| | - Yujie Ji
- College of Stomatology, Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China
| | - Guangyue Li
- College of Stomatology, Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China
| | - Xiaohui Xu
- College of Stomatology, Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China
| | - Chuangwei Zhang
- College of Stomatology, Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China
| | - Wenjie Zhong
- College of Stomatology, Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China
| | - Shihan Xu
- College of Stomatology, Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China
| | - Yuanyuan Yin
- College of Stomatology, Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China
| | - Jinlin Song
- College of Stomatology, Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China
- *Correspondence: Jinlin Song,
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8
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Habib S, Singh M. Carbon-based Nanomaterials for delivery of small RNA molecules: a focus on potential cancer treatment applications. Pharm Nanotechnol 2022; 10:PNT-EPUB-124198. [PMID: 35670355 DOI: 10.2174/2211738510666220606102906] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Revised: 03/17/2022] [Accepted: 04/11/2022] [Indexed: 11/22/2022]
Abstract
BACKGROUND Nucleic acid-mediated therapy holds immense potential in the treatment of recalcitrant human diseases such as cancer. This is underscored by advances in understanding the mechanisms of gene regulation. In particular, the endogenous protective mechanism of gene silencing known as RNA interference (RNAi) has been extensively exploited. METHODS We review here the developments from 2011 to 2021, in the use of nanographene oxide, carbon nanotubes, fullerenes, carbon nanohorns, carbon nanodots and nanodiamonds for the delivery of therapeutic small RNA molecules. RESULTS Appropriately designed effector molecules such as small interfering RNA (siRNA), can, in theory, silence the expression of any disease-causing gene. Alternatively, siRNA can be generated in vivo through the introduction of plasmid-based short hairpin RNA (shRNA) expression vectors. Other small RNAs such as micro RNA (miRNA) also function in post-transcriptional gene regulation and are aberrantly expressed under disease conditions. The miRNA-based therapy involves either restoration of miRNA function through the introduction of miRNA mimics; or the inhibition of miRNA function by delivering anti-miRNA oligomers. However, the large size, hydrophilicity, negative charge and nuclease-sensitivity of nucleic acids necessitate an appropriate carrier for their introduction as medicine into cells. CONCLUSION While numerous organic and inorganic materials have been investigated for this purpose, the perfect carrier agent remains elusive. In recent years, carbon-based nanomaterials have received widespread attention in biotechnology due to their tunable surface characteristics, mechanical, electrical, optical and chemical properties.
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Affiliation(s)
- Saffiya Habib
- Nano-Gene and Drug Delivery Laboratory, Discipline of Biochemistry, School of Life Sciences, University of KwaZulu-Natal, Private Bag X54001, Durban, South Africa
| | - Moganavelli Singh
- Nano-Gene and Drug Delivery Laboratory, Discipline of Biochemistry, School of Life Sciences, University of KwaZulu-Natal, Private Bag X54001, Durban, South Africa
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9
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Lai WF, Obireddy SR, Zhang H, Zhang D, Wong WT. Advances in analysis of pharmaceuticals by using graphene-based sensors. ChemMedChem 2022; 17:e202200111. [PMID: 35618680 DOI: 10.1002/cmdc.202200111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Revised: 05/23/2022] [Indexed: 11/10/2022]
Abstract
Safe and effective use of drugs relies on proper pharmaceutical analysis. Graphene has been extensively used to construct sensors for this purpose. Over the years, a large variety of pharmaceutical sensors have been developed from graphene or its derivatives. This articles reviews the current status of sensor development from graphene and its derivatives, and discusses the use of graphene-based sensors in pharmaceutical analysis. It is hoped that this article cannot only offer a snapshot of recent advances in the fabrication and use of graphene-based sensors, but can also provide insights into future engineering and optimization of the sensors for effective pharmaceutical analysis.
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Affiliation(s)
- Wing-Fu Lai
- The Chinese University of Hong Kong, School of Life and Health Sciences, 518172, Shenzhen, CHINA
| | - Sreekanth Reddy Obireddy
- Sri Krishnadevaraya University, Chemistry, TIRUPATI NATIONAL HIGHWAY, ITUKALAPALLI, 515004, India, 515003, ANANTHAPURAMU, INDIA
| | - Haotian Zhang
- The Chinese University of Hong Kong, School of Life and Health Sciences, CHINA
| | | | - Wing-Tak Wong
- The Hong Kong Polytechnic University, Applied Biology and Chemical Technology, CHINA
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10
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Rheological Properties of Different Graphene Nanomaterials in Biological Media. MATERIALS 2022; 15:ma15103593. [PMID: 35629621 PMCID: PMC9147357 DOI: 10.3390/ma15103593] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 05/11/2022] [Accepted: 05/16/2022] [Indexed: 02/04/2023]
Abstract
Carbon nanomaterials have received increased attention in the last few years due to their potential applications in several areas. In medicine, for example, these nanomaterials could be used as contrast agents, drug transporters, and tissue regenerators or in gene therapy. This makes it necessary to know the behavior of carbon nanomaterials in biological media to assure good fluidity and the absence of deleterious effects on human health. In this work, the rheological characterization of different graphene nanomaterials in fetal bovine serum and other fluids, such as bovine serum albumin and water, is studied using rotational and microfluidic chip rheometry. Graphene oxide, graphene nanoplatelets, and expanded graphene oxide at concentrations between 1 and 3 mg/mL and temperatures in the 25–40 °C range were used. The suspensions were also characterized by transmission and scanning electron microscopy and atomic force microscopy, and the results show a high tendency to aggregation and reveals that there is a protein–nanomaterial interaction. Although rotational rheometry is customarily used, it cannot provide reliable measurements in low viscosity samples, showing an apparent shear thickening, whereas capillary viscometers need transparent samples; therefore, microfluidic technology appears to be a suitable method to measure low viscosity, non-transparent Newtonian fluids, as it is able to determine small variations in viscosity. No significant changes in viscosity are found within the solid concentration range studied but it decreases between 1.1 and 0.6 mPa·s when the temperature raises from 25 to 40 °C.
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11
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Liu C, Tan D, Chen X, Liao J, Wu L. Research on Graphene and Its Derivatives in Oral Disease Treatment. Int J Mol Sci 2022; 23:ijms23094737. [PMID: 35563128 PMCID: PMC9104291 DOI: 10.3390/ijms23094737] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Revised: 04/20/2022] [Accepted: 04/22/2022] [Indexed: 02/07/2023] Open
Abstract
Oral diseases present a global public health problem that imposes heavy financial burdens on individuals and health-care systems. Most oral health conditions can be treated in their early stage. Even if the early symptoms of oral diseases do not seem to cause significant discomfort, prompt treatment is essential for preventing their progression. Biomaterials with superior properties enable dental therapies with applications in restoration, therapeutic drug/protein delivery, and tissue regeneration. Graphene nanomaterials have many unique mechanical and physiochemical properties and can respond to the complex oral microenvironment, which includes oral microbiota colonization and high masticatory force. Research on graphene nanomaterials in dentistry, especially in caries, periodontitis therapy, and implant coatings, is progressing rapidly. Here, we review the development of graphene and its derivatives for dental disease therapy.
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Affiliation(s)
- Chengcheng Liu
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Periodontics, West China School & Hospital of Stomatology, Sichuan University, Chengdu 610041, China; (C.L.); (X.C.)
| | - Dan Tan
- Department of Periodontics and Oral Mucosal Diseases, The Affiliated Stomatological Hospital of Southwest Medical University, Luzhou 646000, China;
| | - Xiaoli Chen
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Periodontics, West China School & Hospital of Stomatology, Sichuan University, Chengdu 610041, China; (C.L.); (X.C.)
| | - Jinfeng Liao
- State Key Laboratory of Oral Diseases, West China School & Hospital of Stomatology, Sichuan University, Chengdu 610041, China
- Correspondence: (J.L.); (L.W.)
| | - Leng Wu
- Department of Stomatology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
- School of Stomatology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan 430030, China
- Correspondence: (J.L.); (L.W.)
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Yang YY, Zhang W, Liu H, Jiang JJ, Wang WJ, Jia ZY. Cell-Penetrating Peptide-Modified Graphene Oxide Nanoparticles Loaded with Rictor siRNA for the Treatment of Triple-Negative Breast Cancer. Drug Des Devel Ther 2021; 15:4961-4972. [PMID: 34916779 PMCID: PMC8671723 DOI: 10.2147/dddt.s330059] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2021] [Accepted: 10/01/2021] [Indexed: 12/17/2022] Open
Abstract
Introduction Breast cancer is a malignant tumor that seriously threatens women's life and health. Methods In this study, we proposed to use graphene nanoparticles loaded with siRNA that can silence Rictor molecules essential for the mammalian target of rapamycin (mTOR) complex 2 (mTORC2) complex to enhance gene delivery to tumor cells through modification of cell-penetrating peptide (CPP) for the treatment of breast cancer. Results Remarkably, we successfully synthesized graphene oxide (GO)/polyethyleneimine (PEI)/polyethylene glycol (PEG)/CPP/small interfering RNA (siRNA) system, and the results were observed by atomic force microscopy (AFM) and ultraviolet visible (UV-Vis) absorption spectra. The optimum mass ratio of siRNA to GO-PEI-PEG-CPP was 1:0.5. We screened out Rictor siRNA-2 from 9 candidates, which presented the highest inhibition rate, and this siRNA was selected for the subsequent experiments. We validated that Rictor siRNA-2 significantly reduced the Rictor expression in triple negative breast cancer (TNBC) cells. Confocal fluorescence microscope and flow cytometry analysis showed that GO-PEI-PEG-CPP/siRNA was able to be effectively uptake by TNBC cells. GO-PEI-PEG-CPP/siRNA improved the effect of siRNA on the inhibition of TNBC cell viability and the induction of TNBC cell apoptosis. The expression of Rictor and the phosphorylation of Akt and p70s6k were inhibited by GO-PEI-PEG-CPP/siRNA. Tumorigenicity analysis in nude mice showed that GO-PEI-PEG-CPP/siRNA significantly repressed the tumor growth of TNBC cells in vivo. The levels of ki-67 were repressed by GO-PEI-PEG-CPP/siRNA, and the apoptosis was induced by GO-PEI-PEG-CPP/siRNA in the system. Discussion Therefore, we concluded that CPP-modified GO nanoparticles loaded with Rictor siRNA significantly repressed TNBC progression by the inhibition of PI3K/Akt/mTOR signaling. Our finding provides a promising therapeutic strategy for the treatment of TNBC.
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Affiliation(s)
- Yun-Yun Yang
- Outpatient Comprehensive Treatment, Cangzhou Central Hospital, Cangzhou, Hebei Province, People's Republic of China
| | - Wei Zhang
- Department of Thyroid and Breast I, Cangzhou Central Hospital, Cangzhou, Hebei Province, People's Republic of China
| | - Hui Liu
- Department of Thyroid and Breast I, Cangzhou Central Hospital, Cangzhou, Hebei Province, People's Republic of China
| | - Jun-Jie Jiang
- Department of Thyroid and Breast I, Cangzhou Central Hospital, Cangzhou, Hebei Province, People's Republic of China
| | - Wen-Jie Wang
- Department of General Surgery, Botou Hospital, Cangzhou, Hebei Province, People's Republic of China
| | - Zheng-Yan Jia
- Department of General Surgery, Qingxian People's Hospital, Cangzhou, Hebei Province, People's Republic of China
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Burdanova MG, Kharlamova MV, Kramberger C, Nikitin MP. Applications of Pristine and Functionalized Carbon Nanotubes, Graphene, and Graphene Nanoribbons in Biomedicine. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:3020. [PMID: 34835783 PMCID: PMC8626004 DOI: 10.3390/nano11113020] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Revised: 10/27/2021] [Accepted: 11/02/2021] [Indexed: 12/12/2022]
Abstract
This review is dedicated to a comprehensive description of the latest achievements in the chemical functionalization routes and applications of carbon nanomaterials (CNMs), such as carbon nanotubes, graphene, and graphene nanoribbons. The review starts from the description of noncovalent and covalent exohedral modification approaches, as well as an endohedral functionalization method. After that, the methods to improve the functionalities of CNMs are highlighted. These methods include the functionalization for improving the hydrophilicity, biocompatibility, blood circulation time and tumor accumulation, and the cellular uptake and selectivity. The main part of this review includes the description of the applications of functionalized CNMs in bioimaging, drug delivery, and biosensors. Then, the toxicity studies of CNMs are highlighted. Finally, the further directions of the development of the field are presented.
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Affiliation(s)
- Maria G. Burdanova
- Center for Photonics and 2D Materials, Moscow Institute of Physics and Technology, Institutskii Pereulok 9, 141700 Dolgoprudny, Russia;
- Department of Physics, Moscow Region State University, Very Voloshinoy Street, 24, 141014 Mytishi, Russia
| | - Marianna V. Kharlamova
- Phystech School of Biological and Medical Physics, Moscow Institute of Physics and Technology, Institutskii Pereulok 9, 141700 Dolgoprudny, Russia;
- Institute of Materials Chemistry, Vienna University of Technology, Getreidemarkt 9/BC/2, 1060 Vienna, Austria
| | - Christian Kramberger
- Faculty of Physics, University of Vienna, Strudlhofgasse 4, 1090 Vienna, Austria;
| | - Maxim P. Nikitin
- Phystech School of Biological and Medical Physics, Moscow Institute of Physics and Technology, Institutskii Pereulok 9, 141700 Dolgoprudny, Russia;
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Cham Sa-Ard W, Fawcett D, Fung CC, Chapman P, Rattan S, Poinern GEJ. Synthesis, characterisation and thermo-physical properties of highly stable graphene oxide-based aqueous nanofluids for potential low-temperature direct absorption solar applications. Sci Rep 2021; 11:16549. [PMID: 34400658 PMCID: PMC8367989 DOI: 10.1038/s41598-021-94406-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Accepted: 06/17/2021] [Indexed: 12/02/2022] Open
Abstract
Two types of highly stable 0.1% graphene oxide-based aqueous nanofluids were synthesised and investigated. The first nanofluid (GO) was prepared under the influence of ultrasonic irradiation without surfactant. The second nanofluid was treated with tetra ethyl ammonium hydroxide to reduce the graphene oxide to form reduced graphene oxide (RGO) during ultrasonic irradiation. The GO and RGO powders were characterised by various techniques such as field emission scanning electron microscopy, transmission electron microscopy, X-ray diffraction and Raman. Also UV–visible absorption spectroscopy was carried out and band gap energies were determined. Optical band gap energies for indirect transitions ranged from 3.4 to 4.4 eV and for direct transitions they ranged between 2.2 and 3.7 eV. Thermal conductivity measurements of the GO-based aqueous nanofluid revealed an enhancement of 9.5% at 40 °C compared to pure water, while the RGO-based aqueous nanofluid at 40 °C had a value 9.23% lower than pure water. Furthermore, the photothermal response of the RGO-based aqueous nanofluid had a temperature increase of 13.5 °C, (enhancement of 60.2%) compared to pure water, the GO-based aqueous nanofluid only displayed a temperature rise of 10.9 °C, (enhancement of 46.6%) after 20 min exposure to a solar irradiance of 1000 W m−2. Both nanofluid types displayed good long-term stability, with the GO-based aqueous nanofluid having a zeta potential of 30.3 mV and the RGO-based aqueous nanofluid having a value of 47.6 mV after 6 months. The good dispersion stability and photothermal performance makes both nanofluid types very promising working fluids for low-temperature direct absorption solar collectors.
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Affiliation(s)
- Wisut Cham Sa-Ard
- Murdoch Applied Innovation Nanotechnology Research Group, Department of Physics, Energy Studies and Nanotechnology, Harry Butler Institute, Murdoch University, Murdoch, WA, 6150, Australia
| | - Derek Fawcett
- Murdoch Applied Innovation Nanotechnology Research Group, Department of Physics, Energy Studies and Nanotechnology, Harry Butler Institute, Murdoch University, Murdoch, WA, 6150, Australia
| | - Chun Che Fung
- School of Engineering and Energy, Murdoch University, Murdoch, WA, 6150, Australia
| | - Peter Chapman
- School of Molecular and Life Sciences, Faculty of Science and Engineering, Curtin University, Bentley, WA, 6102, Australia
| | - Supriya Rattan
- Murdoch Applied Innovation Nanotechnology Research Group, Department of Physics, Energy Studies and Nanotechnology, Harry Butler Institute, Murdoch University, Murdoch, WA, 6150, Australia
| | - Gerrard Eddy Jai Poinern
- Murdoch Applied Innovation Nanotechnology Research Group, Department of Physics, Energy Studies and Nanotechnology, Harry Butler Institute, Murdoch University, Murdoch, WA, 6150, Australia.
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Karachevtsev MV, Valeev VA, Karachevtsev VA. Interaction of double-stranded polynucleotide poly(A:U) with graphene/graphene oxide. THE EUROPEAN PHYSICAL JOURNAL. E, SOFT MATTER 2021; 44:24. [PMID: 33686498 DOI: 10.1140/epje/s10189-021-00030-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Accepted: 01/29/2021] [Indexed: 06/12/2023]
Abstract
Hybrids formed by DNA/RNA and graphene family nanomaterials are considered as potentially useful multifunctional agents in biosensing and nanomedicine. In this work, we study the noncovalent interaction between double-stranded (ds) RNA, polyadenylic:polyuridylic acids (poly(A:U)) and graphene oxide/graphene (GO/Gr) using UV absorption spectroscopy and molecular dynamics (MD) simulations. RNA melting showed that relatively long ds-RNA is adsorbed onto GO (at an ionic strength of [Formula: see text]) at that a large fraction of RNA maintains the duplex structure. It was revealed that this fraction decreases over long time (during a few days), indicating a slow adsorption process of the long polymer. MD simulations showed that the adsorption of duplex (rA)[Formula: see text]: (rU)[Formula: see text] or (rA)[Formula: see text]: (rU)[Formula: see text] on graphene starts with the interaction between [Formula: see text]-systems of graphene and base pairs located at a duplex tail. In contrast to relatively long duplex (rA)[Formula: see text]: (rU)[Formula: see text] which keeps parallel arrangement along the graphene surface, the shorter one ((rA)[Formula: see text]: (rU)[Formula: see text]) always adopts a perpendicular orientation relative to graphene even in case of the initial parallel orientation. It was found out that (rA)[Formula: see text]: (rU)[Formula: see text] forms the stable hybrid with graphene keeping essential fraction of the duplex, while (rA)[Formula: see text]: (rU)[Formula: see text] demonstrates the duplex unzipping into two single strands with time. The interaction energies between adenine/uracil stacked with graphene as well between nucleotides in water environment were determined.
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Affiliation(s)
- Maksym V Karachevtsev
- B. Verkin Institute for Low Temperature Physics and Engineering, National Academy of Sciences of Ukraine, 47, Nauky Ave., Kharkiv, 61103, Ukraine.
| | - Vladimir A Valeev
- B. Verkin Institute for Low Temperature Physics and Engineering, National Academy of Sciences of Ukraine, 47, Nauky Ave., Kharkiv, 61103, Ukraine
| | - Victor A Karachevtsev
- B. Verkin Institute for Low Temperature Physics and Engineering, National Academy of Sciences of Ukraine, 47, Nauky Ave., Kharkiv, 61103, Ukraine
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16
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Graphene-based nanomaterial system: a boon in the era of smart nanocarriers. JOURNAL OF PHARMACEUTICAL INVESTIGATION 2021. [DOI: 10.1007/s40005-021-00513-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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17
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Ma B, Guo S, Nishina Y, Bianco A. Reaction between Graphene Oxide and Intracellular Glutathione Affects Cell Viability and Proliferation. ACS APPLIED MATERIALS & INTERFACES 2021; 13:3528-3535. [PMID: 33428377 DOI: 10.1021/acsami.0c17523] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Graphene oxide (GO) is currently developed for biomedical applications as a promising nanoplatform for drug delivery, phototherapy, and biosensing. As a consequence, its safety and cytotoxicity issues have attracted extensive attention. It has been demonstrated that GO causes an increase of intracellular oxidative stress, likely leading to its cytotoxicity and inhibition of cell proliferation. Being one of the main reductive intracellular substances, glutathione (GSH) is vital in the regulation of the oxidative stress level to maintain normal cellular functions. In this study, we found that GSH could be oxidized to GSSG by GO, leading to the formation of reduced GO (rGO). GSH depletion affects the intracellular reductive/oxidative balance, provoking the increase of the reactive oxygen species level, sequentially inhibiting cell viability and proliferation. Therefore, the reaction between GO and GSH provides a new perspective to explain the origin of GO cytotoxicity.
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Affiliation(s)
- Baojin Ma
- CNRS, Immunology, Immunopathology and Therapeutic Chemistry, UPR3572, University of Strasbourg, ISIS, Strasbourg 67000, France
| | - Shi Guo
- CNRS, Immunology, Immunopathology and Therapeutic Chemistry, UPR3572, University of Strasbourg, ISIS, Strasbourg 67000, France
| | - Yuta Nishina
- Graduate School of Natural Science and Technology, Okayama University, Tsushimanaka, Kita-ku, Okayama 700-8530, Japan
- Research Core for Interdisciplinary Sciences, Okayama University, Tsushimanaka, Kita-ku, Okayama 700-8530, Japan
| | - Alberto Bianco
- CNRS, Immunology, Immunopathology and Therapeutic Chemistry, UPR3572, University of Strasbourg, ISIS, Strasbourg 67000, France
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Shiralizadeh Dezfuli A, Kohan E, Tehrani Fateh S, Alimirzaei N, Arzaghi H, Hamblin MR. Organic dots (O-dots) for theranostic applications: preparation and surface engineering. RSC Adv 2021; 11:2253-2291. [PMID: 35424170 PMCID: PMC8693874 DOI: 10.1039/d0ra08041a] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2020] [Accepted: 11/08/2020] [Indexed: 12/17/2022] Open
Abstract
Organic dots is a term used to represent materials including graphene quantum dots and carbon quantum dots because they rely on the presence of other atoms (O, H, and N) for their photoluminescence or fluorescence properties. They generally have a small size (as low as 2.5 nm), and show good photostability under prolonged irradiation. The excitation and emission wavelengths of O-dots can be tailored according to their synthetic procedure, where although their quantum yield is quite low compared with organic dyes, this is partly compensated by their large absorption coefficients. A wide range of strategies have been used to modify the surface of O-dots for passivation, improving their solubility and biocompatibility, and allowing the attachment of targeting moieties and therapeutic cargos. Hybrid nanostructures based on O-dots have been used for theranostic applications, particularly for cancer imaging and therapy. This review covers the synthesis, physics, chemistry, and characterization of O-dots. Their applications cover the prevention of protein fibril formation, and both controlled and targeted drug and gene delivery. Multifunctional therapeutic and imaging platforms have been reported, which combine four or more separate modalities, frequently including photothermal or photodynamic therapy and imaging and drug release.
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Affiliation(s)
- Amin Shiralizadeh Dezfuli
- Physiology Research Center, Iran University of Medical Sciences Tehran Iran
- Ronash Technology Pars Company Tehran Iran
| | - Elmira Kohan
- Department of Science, University of Kurdistan Kurdistan Sanandaj Iran
| | - Sepand Tehrani Fateh
- School of Medicine, Shahid Beheshti University of Medical Sciences (SBMU) Tehran Iran
| | - Neda Alimirzaei
- Institute of Nanoscience and Nanotechnology, University of Kashan Kashan Iran
| | - Hamidreza Arzaghi
- Department of Medical Biotechnology, Faculty of Allied Medical Sciences, Iran University of Medical Sciences (IUMS) Tehran Iran
| | - Michael R Hamblin
- Wellman Center for Photomedicine, Massachusetts General Hospital, Harvard Medical School Boston MA 02114 USA
- Laser Research Centre, Faculty of Health Science, University of Johannesburg Doornfontein 2028 South Africa
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Lázaro I, Sharp P, Gurcan C, Ceylan A, Stylianou M, Kisby T, Chen Y, Vranic S, Barr K, Taheri H, Ozen A, Bussy C, Yilmazer A, Kostarelos K. Deep Tissue Translocation of Graphene Oxide Sheets in Human Glioblastoma 3D Spheroids and an Orthotopic Xenograft Model. ADVANCED THERAPEUTICS 2020. [DOI: 10.1002/adtp.202000109] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Irene Lázaro
- Nanomedicine Lab, National Graphene Institute and Faculty of Biology, Medicine and Health University of Manchester AV Hill Building Manchester M13 9PT UK
- John A Paulson School of Engineering and Applied Sciences Harvard University 58 Oxford Street Cambridge MA 02138 USA
- Wyss Institute for Biologically Inspired Engineering at Harvard University 3 Blackfan Circle Boston MA 02115 USA
| | - Paul Sharp
- Nanomedicine Lab, National Graphene Institute and Faculty of Biology, Medicine and Health University of Manchester AV Hill Building Manchester M13 9PT UK
| | - Cansu Gurcan
- Department of Biomedical Engineering, Faculty of Engineering Ankara University Ankara 06830 Turkey
- Stem Cell Institute Ankara University Ankara 06520 Turkey
| | - Ahmet Ceylan
- Department of Histology Embryology, Faculty of Veterinary Medicine Ankara University Ankara 06110 Turkey
| | - Maria Stylianou
- Nanomedicine Lab, National Graphene Institute and Faculty of Biology, Medicine and Health University of Manchester AV Hill Building Manchester M13 9PT UK
| | - Thomas Kisby
- Nanomedicine Lab, National Graphene Institute and Faculty of Biology, Medicine and Health University of Manchester AV Hill Building Manchester M13 9PT UK
| | - Yingxian Chen
- Nanomedicine Lab, National Graphene Institute and Faculty of Biology, Medicine and Health University of Manchester AV Hill Building Manchester M13 9PT UK
| | - Sandra Vranic
- Nanomedicine Lab, National Graphene Institute and Faculty of Biology, Medicine and Health University of Manchester AV Hill Building Manchester M13 9PT UK
| | - Katharine Barr
- Nanomedicine Lab, National Graphene Institute and Faculty of Biology, Medicine and Health University of Manchester AV Hill Building Manchester M13 9PT UK
| | - Hadiseh Taheri
- Department of Biomedical Engineering, Faculty of Engineering Ankara University Ankara 06830 Turkey
| | - Asuman Ozen
- Department of Histology Embryology, Faculty of Veterinary Medicine Ankara University Ankara 06110 Turkey
| | - Cyrill Bussy
- Nanomedicine Lab, National Graphene Institute and Faculty of Biology, Medicine and Health University of Manchester AV Hill Building Manchester M13 9PT UK
| | - Acelya Yilmazer
- Department of Biomedical Engineering, Faculty of Engineering Ankara University Ankara 06830 Turkey
- Stem Cell Institute Ankara University Ankara 06520 Turkey
| | - Kostas Kostarelos
- Nanomedicine Lab, National Graphene Institute and Faculty of Biology, Medicine and Health University of Manchester AV Hill Building Manchester M13 9PT UK
- Catalan Institute of Nanoscience and Nanotechnology (ICN2) UAB Campus Bellaterra Barcelona 08193 Spain
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20
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Lan MY, Hsu YB, Lan MC, Chen JP, Lu YJ. Polyethylene Glycol-Coated Graphene Oxide Loaded with Erlotinib as an Effective Therapeutic Agent for Treating Nasopharyngeal Cancer Cells. Int J Nanomedicine 2020; 15:7569-7582. [PMID: 33116488 PMCID: PMC7548234 DOI: 10.2147/ijn.s265437] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2020] [Accepted: 09/09/2020] [Indexed: 12/19/2022] Open
Abstract
Introduction Nasopharyngeal carcinoma (NPC) is a common cancer in southern China and Taiwan, and radiation therapy combined with or without chemotherapy is its mainstay treatment. Although it is highly sensitive to radiotherapy, local recurrence and distant metastasis remain difficult unsolved problems. In recent years, graphene oxide (GO) has been found to be a promising novel anticancer drug carrier. Here, we present our designed functionalized GO, polyethylene glycol-coated GO (GO-PEG), as a drug carrier, which was loaded with erlotinib and showed promising anticancer effects on NPC cells. Methods The effects of GO-PEG-erlotinib on the proliferation, migration, and invasion of NPC cells were investigated by WST-8 assay, wound healing assay, and invasion assay, respectively. RNA sequencing was conducted and analyzed to determine the molecular mechanisms by which GO-PEG-erlotinib affects NPC cells. Results Our results showed that GO-PEG-erlotinib reduced NPC cell viability in a dose-dependent manner and also inhibited the migration and invasion of NPC cells. The RNA sequencing revealed several related molecular mechanisms. Conclusion GO-PEG-erlotinib effectively suppressed NPC cell proliferation, migration, and invasion, likely by several mechanisms. GO-PEG-erlotinib may be a potential therapeutic agent for treating NPC in the future.
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Affiliation(s)
- Ming-Ying Lan
- Department of Otolaryngology-Head and Neck Surgery, Taipei Veterans General Hospital, Taipei, Taiwan.,School of Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Yen-Bin Hsu
- Department of Otolaryngology-Head and Neck Surgery, Taipei Veterans General Hospital, Taipei, Taiwan.,School of Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Ming-Chin Lan
- Department of Otolaryngology-Head and Neck Surgery, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei City, Taiwan.,School of Medicine, Tzu Chi University, Hualien, Taiwan
| | - Jyh-Ping Chen
- Department of Chemical and Materials Engineering, Chang Gung University, Taoyuan, Taiwan.,Department of Plastic and Reconstructive Surgery and Craniofacial Research Center, Chang Gung Memorial Hospital, Taoyuan, Taiwan.,Research Center for Food and Cosmetic Safety, Research Center for Chinese Herbal Medicine, College of Human Ecology, Chang Gung University of Science and Technology, Taoyuan, Taiwan.,Department of Materials Engineering, Ming Chi University of Technology, Taipei, Taiwan
| | - Yu-Jen Lu
- Department of Neurosurgery, Chang Gung Memorial Hospital Linkuo Medical Center and College of Medicine, Chang Gung University, Taoyuan, Taiwan
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Codelivery of HIF-1α siRNA and Dinaciclib by Carboxylated Graphene Oxide-Trimethyl Chitosan-Hyaluronate Nanoparticles Significantly Suppresses Cancer Cell Progression. Pharm Res 2020; 37:196. [PMID: 32944844 DOI: 10.1007/s11095-020-02892-y] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2020] [Accepted: 07/24/2020] [Indexed: 01/07/2023]
Abstract
PURPOSE Hypoxia-inducible factor (HIF) is one of the critical components of the tumor microenvironment that is involved in tumor development. HIF-1α functionally and physically interacts with CDK1, 2, and 5 and stimulates the cell cycle progression and Cyclin-Dependent Kinase (CDK) expression. Therefore, hypoxic tumor microenvironment and CDK overexpression lead to increased cell cycle progression and tumor expansion. Therefore, we decided to suppress cancer cell expansion by blocking HIF-1α and CDK molecules. METHODS In the present study, we used the carboxylated graphene oxide (CGO) conjugated with trimethyl chitosan (TMC) and hyaluronate (HA) nanoparticles (NPs) loaded with HIF-1α-siRNA and Dinaciclib, the CDK inhibitor, for silencing HIF-1α and blockade of CDKs in CD44-expressing cancer cells and evaluated the impact of combination therapy on proliferation, metastasis, apoptosis, and tumor growth. RESULTS The results indicated that the manufactured NPs had conceivable physicochemical properties, high cellular uptake, and low toxicity. Moreover, combination therapy of cancer cells using CGO-TMC-HA NPs loaded with HIF-1α siRNA and Dinaciclib (SCH 727965) significantly suppressed the CDKs/HIF-1α and consequently, decreased the proliferation, migration, angiogenesis, and colony formation in tumor cells. CONCLUSIONS These results indicate the ability of CGO-TMC-HA NPs for dual drug/gene delivery in cancer treatment. Furthermore, the simultaneous inhibition of CDKs/HIF-1α can be considered as a novel anti-cancer treatment strategy; however, further research is needed to confirm this treatment in vivo. Graphical Abstract The suppression of HIF-1α and CDKs inhibits cancer growth. HIF-1α is overexpressed by the cells present in the tumor microenvironment. The hypoxic environment elevates mitochondrial ROS production and increases p38 MAP kinase, JAK/STAT, ERK, JNK, and Akt/PI3K signaling, resulting in cyclin accumulation and aberrant cell cycle progression. Furthermore, the overexpression of HIF-1α/CDK results in increased expression of genes such as BCL2, Bcl-xl, Ki-67, TGFβ, VEGF, FGF, MMP2, MMP9, and, HIF-1α and consequently raise the survival, proliferation, angiogenesis, metastasis, and invasion of tumor cells. In conclusion, HIF-1α-siRNA/Dinaciclib-loaded CGO-TMC-HA NPs can inhibit the tumor expansion by blockage of CDKs and HIF-1α (JAK: Janus kinase, STAT: Signal transducer and activator of transcription, MAPK: mitogen-activated protein kinase, ERK: extracellular signal-regulated kinase, JNK: c-Jun N-terminal kinase, PI3K: phosphatidylinositol 3-kinase).
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Wu S, Liu Y, Zhang H, Lei L. Nano-graphene oxide with antisense walR RNA inhibits the pathogenicity of Enterococcus faecalis in periapical periodontitis. J Dent Sci 2020; 15:65-74. [PMID: 32257002 PMCID: PMC7109485 DOI: 10.1016/j.jds.2019.09.006] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Revised: 09/18/2019] [Indexed: 02/05/2023] Open
Abstract
Background/purpose Enterococcus faecalis (E. faecalis) is considered a predominant pathogen for persistent periapical infections. Antisense walR (ASwalR) RNA was reported to inhibit the biofilm formation and sensitized E. faecalis to calcium hydroxide medication. The aims of this study were to investigate whether the graphene oxide (GO) nanosheets could be used to enhance antibacterial activity of ASwalR RNA for E. faecalis in periapical periodontitis. Materials and methods We developed a graphene-based plasmid transformation system by loading antisense walR plasmid with GO-polyethylenimine (PEI) complexes (GO-PEI-ASwalR). The particle size distributions and zeta-potential of the GO-PEI-ASwalR were evaluated. Then, ASwalR plasmids were labeled with gene encoding enhanced green fluorescent protein (ASwalR-eGFP). The transformation efficiencies and the bacterial viability of E. faecalis were evaluated by confocal laser scanning microscopy. Quantitative real-time PCR assays were used to investigate the expressions of E. faecalis virulent genes after transformed by GO-PEI-ASwalR. Also, the antibacterial properties of the GO-PEI-ASwalR were validated in the rat periapical periodontitis model. Results We showed that GO-PEI could efficiently deliver the ASwalR plasmid into E. faecalis cell. GO-PEI-ASwalR significantly reduced virulent-associated gene expressions. Furthermore, GO-PEI-ASwalR suppressed biofilm aggregation and improved bactericidal effects using infected canal models in vitro. In four-weeks periapical infective rat models, the GO-PEI-ASwalR strains remarkably reduced the periapical lesion size. Conclusion Transformation efficiency and antibacterial prosperity of ASwalR can be marked improved by GO-PEI based delivery system for E. faecalis infections.
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Affiliation(s)
- Shizhou Wu
- Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, China.,State Key Laboratory of Oral Diseases, Department of Preventive Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Yunjie Liu
- West China School of Public Health, Sichuan University, Chengdu, China
| | - Hui Zhang
- Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, China
| | - Lei Lei
- State Key Laboratory of Oral Diseases, Department of Preventive Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu, China
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WU S, LIU Y, ZHANG H, LEI L. Nano-graphene oxide with antisense vicR RNA reduced exopolysaccharide synthesis and biofilm aggregation for Streptococcus mutans . Dent Mater J 2020; 39:278-286. [PMID: 31827056 DOI: 10.4012/dmj.2019-039] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Shizhou WU
- Department of Orthopedics, West China Hospital, Sichuan University
- State Key Laboratory of Oral Diseases, Department of Preventive Dentistry, West China Hospital of Stomatology, Sichuan University
| | - Yunjie LIU
- West China School of Public Health, Sichuan University
| | - Hui ZHANG
- Department of Orthopedics, West China Hospital, Sichuan University
| | - Lei LEI
- State Key Laboratory of Oral Diseases, Department of Preventive Dentistry, West China Hospital of Stomatology, Sichuan University
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Ou L, Sun T, Liu M, Zhang Y, Zhou Z, Zhan X, Lu L, Zhao Q, Lai R, Shao L. Efficient miRNA Inhibitor Delivery with Graphene Oxide-Polyethylenimine to Inhibit Oral Squamous Cell Carcinoma. Int J Nanomedicine 2020; 15:1569-1583. [PMID: 32210552 PMCID: PMC7069571 DOI: 10.2147/ijn.s220057] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Accepted: 01/02/2020] [Indexed: 12/25/2022] Open
Abstract
Background MicroRNAs (miRNAs) are widely believed to be promising targets for oral squamous cell carcinoma (OSCC) gene therapy. miR-214 has been identified as a promoter of OSCC aggression and metastasis. Methods Graphene oxide-polyethylenimine (GO-PEI) complexes were prepared and loaded with a miRNA inhibitor at different N/P ratios. The transfection efficiency of GO-PEI-inhibitor was tested in Cal27 and SCC9 cells. Moreover, the tumor inhibition ability of GO-PEI-inhibitor was measured in an OSCC xenograft mouse model by intratumoral injection. Results Here, we show that a GO-PEI complex efficiently delivers a miR-214 inhibitor into OSCC cells and controls the intracellular release of the miR-214 inhibitor. These results indicate that the GO-PEI-miR-214 inhibitor complex efficiently inhibited cellular miR-214, resulting in a decrease in OSCC cell invasion and migration and an increase in cell apoptosis by targeting PTEN and p53. In the xenograft mouse model, the GO-PEI-miR-214 inhibitor complex significantly prevented tumor volume growth. Conclusion This study indicates that functionalized GO-PEI with low toxicity has promising potential for miRNA delivery for the treatment of OSCC.
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Affiliation(s)
- Lingling Ou
- The First Affiliated Hospital of Jinan University, Department of Stomatology, Guangzhou 510632, People's Republic of China
| | - Ting Sun
- The First Affiliated Hospital of Jinan University, Department of Stomatology, Guangzhou 510632, People's Republic of China
| | - Minyi Liu
- The First Affiliated Hospital of Jinan University, Department of Stomatology, Guangzhou 510632, People's Republic of China
| | - Ye Zhang
- The First Affiliated Hospital of Jinan University, Department of Stomatology, Guangzhou 510632, People's Republic of China
| | - Zhiying Zhou
- The First Affiliated Hospital of Jinan University, Department of Stomatology, Guangzhou 510632, People's Republic of China
| | - Xiaozhen Zhan
- The First Affiliated Hospital of Jinan University, Department of Stomatology, Guangzhou 510632, People's Republic of China
| | - Lihong Lu
- The First Affiliated Hospital of Jinan University, Department of Stomatology, Guangzhou 510632, People's Republic of China
| | - Qingtong Zhao
- The First Affiliated Hospital of Jinan University, Department of Stomatology, Guangzhou 510632, People's Republic of China
| | - Renfa Lai
- The First Affiliated Hospital of Jinan University, Department of Stomatology, Guangzhou 510632, People's Republic of China
| | - Longquan Shao
- Stomatological Hospital of Southern Medical University, Department of Prosthodontics, Guangzhou 510260, People's Republic of China
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Xia M, Luo D, Dong J, Zheng M, Meng G, Wu J, Wei J. Graphene oxide arms oncolytic measles virus for improved effectiveness of cancer therapy. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2019; 38:408. [PMID: 31533779 PMCID: PMC6749703 DOI: 10.1186/s13046-019-1410-x] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/07/2019] [Accepted: 09/03/2019] [Indexed: 12/16/2022]
Abstract
BACKGROUND Replication-competent oncolytic viruses (OVs) have been proven to be a potent anticancer weapon for clinical therapy. The preexisting neutralizing antibody in patients is a big challenge for oncolytic efficacy of OVs. Graphene oxide sheets (GOS) possess excellent biological compatibility and are easy to decorate for targeted delivery. METHODS We generated PEI-GOS-PEG-FA (Polyethyleneimine-Graphene oxide sheets-Polyethylene glycol-Folic acid). After intravenous injection, the distribution of PEI-GOS-PEG-FA in tumor-bearing mice was visualized by the IVIS Lumina XR system. Then, the oncolytic measles virus (MV-Edm) was coated with PEI-GOS-PEG-FA to form a viral-GOS complex (GOS/MV-Edm). The oncolytic effects of GOS/MV-Edm were investigated both in vitro and in vivo. RESULTS GOS/MV-Edm exhibited higher infectivity and enhanced oncolysis. In tumor-bearing mice, GOS/MV-Edm had significantly elevated viral replication within the tumor mass, and achieved an improved antitumor effect. Then, we confirmed that GOS/MV-Edm entered cancer cells via the folate receptor instead of CD46, a natural cognate receptor of MV-Edm. GOS/MV-Edm remained the infectivity in murine cells that lack CD46. Finally, we found that GOS/MV-Edm was effectively protected from neutralization in the presence of antiserum both in vitro and in vivo. In passively antiserum immunized tumor-bearing mice, the survival was remarkably improved with intravenous injection of GOS/MV-Edm. CONCLUSION Our findings demonstrate that GOS/MV-Edm displays significantly elevated viral replication within the tumor mass, leading to an improved antitumor effect in solid tumor mouse model. Our study provided a novel strategy to arm OVs for more efficient cancer therapy. That may become a promising therapeutic strategy for cancer patients.
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Affiliation(s)
- Mao Xia
- Department of Laboratory Medicine, The Affiliated Drum Tower Hospital, Medical School of Nanjing University, Nanjing, 210008, China
| | - Dongjun Luo
- Department of Hepatobiliary Surgery, The Affiliated Drum Tower Hospital, Medical School of Nanjing University, Nanjing, 210008, China
| | - Jie Dong
- Jiangsu Key Laboratory of Molecular Medicine, Medical School of Nanjing University, Nanjing, 210093, China
| | - Meihong Zheng
- Jiangsu Key Laboratory of Molecular Medicine, Medical School of Nanjing University, Nanjing, 210093, China
| | - Gang Meng
- The Affiliated Drum Tower Hospital, Medical School of Nanjing University, Nanjing, 210008, China
| | - Junhua Wu
- Jiangsu Key Laboratory of Molecular Medicine, Medical School of Nanjing University, Nanjing, 210093, China.
| | - Jiwu Wei
- Jiangsu Key Laboratory of Molecular Medicine, Medical School of Nanjing University, Nanjing, 210093, China.
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26
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de Lázaro I, Vranic S, Marson D, Rodrigues AF, Buggio M, Esteban-Arranz A, Mazza M, Posocco P, Kostarelos K. Graphene oxide as a 2D platform for complexation and intracellular delivery of siRNA. NANOSCALE 2019; 11:13863-13877. [PMID: 31298676 DOI: 10.1039/c9nr02301a] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
The development of efficient and safe nucleic acid delivery vectors remains an unmet need holding back translation of gene therapy approaches to the bedside. Graphene oxide (GO) could help bypass such bottlenecks, thanks to its large surface area, versatile chemistry and biocompatibility, which could overall enhance transfection efficiency while abolishing some of the limitations linked to the use of viral vectors. Here, we aimed to assess the capacity of bare GO, without any further surface modification, to complex a short double-stranded nucleic acid of biological relevance (siRNA) and mediate its intracellular delivery. GO formed stable complexes with siRNA at 10 : 1, 20 : 1 and 50 : 1 GO : siRNA mass ratios. Complexation was further corroborated by atomistic molecular dynamics simulations. GO : siRNA complexes were promptly internalized in a primary mouse cell culture, as early as 4 h after exposure. At this time point, intracellular siRNA levels were comparable to those provided by a lipid-based transfection reagent that achieved significant gene silencing. The time-lapse tracking of internalized GO and siRNA evidenced a sharp decrease of intracellular siRNA from 4 to 12 h, while GO was sequestered in large vesicles, which may explain the lack of biological effects (i.e. gene silencing) achieved by GO : siRNA complexes. This study underlines the potential of non-surface modified GO flakes to act as 2D siRNA delivery platforms, without the need for cationic functionalization, but warrants further vector optimization to allow the effective release of the nucleic acid and achieve efficient gene silencing.
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Affiliation(s)
- Irene de Lázaro
- Nanomedicine Lab, Faculty Biology, Medicine and Health, AV Hill Building, The University of Manchester, Manchester M13 9PT, UK. and National Graphene Institute, The University of Manchester, Booth Street E, Manchester M13 9PL, UK
| | - Sandra Vranic
- Nanomedicine Lab, Faculty Biology, Medicine and Health, AV Hill Building, The University of Manchester, Manchester M13 9PT, UK. and National Graphene Institute, The University of Manchester, Booth Street E, Manchester M13 9PL, UK
| | - Domenico Marson
- Molecular Simulation Engineering Laboratory, Department of Engineering and Architecture, University of Trieste, 34127 Trieste, Italy
| | - Artur Filipe Rodrigues
- Nanomedicine Lab, Faculty Biology, Medicine and Health, AV Hill Building, The University of Manchester, Manchester M13 9PT, UK. and National Graphene Institute, The University of Manchester, Booth Street E, Manchester M13 9PL, UK
| | - Maurizio Buggio
- Nanomedicine Lab, Faculty Biology, Medicine and Health, AV Hill Building, The University of Manchester, Manchester M13 9PT, UK. and National Graphene Institute, The University of Manchester, Booth Street E, Manchester M13 9PL, UK
| | - Adrián Esteban-Arranz
- Nanomedicine Lab, Faculty Biology, Medicine and Health, AV Hill Building, The University of Manchester, Manchester M13 9PT, UK. and National Graphene Institute, The University of Manchester, Booth Street E, Manchester M13 9PL, UK
| | - Mariarosa Mazza
- Nanomedicine Lab, Faculty Biology, Medicine and Health, AV Hill Building, The University of Manchester, Manchester M13 9PT, UK. and National Graphene Institute, The University of Manchester, Booth Street E, Manchester M13 9PL, UK
| | - Paola Posocco
- Molecular Simulation Engineering Laboratory, Department of Engineering and Architecture, University of Trieste, 34127 Trieste, Italy
| | - Kostas Kostarelos
- Nanomedicine Lab, Faculty Biology, Medicine and Health, AV Hill Building, The University of Manchester, Manchester M13 9PT, UK. and National Graphene Institute, The University of Manchester, Booth Street E, Manchester M13 9PL, UK
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Panwar N, Soehartono AM, Chan KK, Zeng S, Xu G, Qu J, Coquet P, Yong KT, Chen X. Nanocarbons for Biology and Medicine: Sensing, Imaging, and Drug Delivery. Chem Rev 2019; 119:9559-9656. [DOI: 10.1021/acs.chemrev.9b00099] [Citation(s) in RCA: 238] [Impact Index Per Article: 47.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Nishtha Panwar
- School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore 639798, Singapore
| | - Alana Mauluidy Soehartono
- School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore 639798, Singapore
| | - Kok Ken Chan
- School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore 639798, Singapore
| | - Shuwen Zeng
- School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore 639798, Singapore
- CINTRA CNRS/NTU/THALES, UMI 3288, Research Techno Plaza, 50 Nanyang Drive, Border X Block, Singapore 637553, Singapore
| | - Gaixia Xu
- Key Laboratory of Optoelectronics Devices and Systems of Ministry of Education/Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, P. R. China
| | - Junle Qu
- Key Laboratory of Optoelectronics Devices and Systems of Ministry of Education/Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, P. R. China
| | - Philippe Coquet
- CINTRA CNRS/NTU/THALES, UMI 3288, Research Techno Plaza, 50 Nanyang Drive, Border X Block, Singapore 637553, Singapore
- Institut d’Electronique, de Microélectronique et de Nanotechnologie (IEMN), CNRS UMR 8520—Université de Lille, 59650 Villeneuve d’Ascq, France
| | - Ken-Tye Yong
- School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore 639798, Singapore
| | - Xiaoyuan Chen
- Laboratory of Molecular Imaging and Nanomedicine, National Institute of Biomedical Imaging and Bioengineering, National Institutes of Health, Bethesda, Maryland 20892, United States
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Ou L, Lan Y, Feng Z, Feng L, Yang J, Liu Y, Bian L, Tan J, Lai R, Guo R. Functionalization of SF/HAP Scaffold with GO-PEI-miRNA inhibitor Complexes to Enhance Bone Regeneration through Activating Transcription Factor 4. Am J Cancer Res 2019; 9:4525-4541. [PMID: 31285777 PMCID: PMC6599658 DOI: 10.7150/thno.34676] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2019] [Accepted: 04/12/2019] [Indexed: 02/07/2023] Open
Abstract
Evidence indicates that microRNAs (miRNAs) play vital roles in regulating osteogenic differentiation and bone formation. Methods: Here, we show that a polyethyleneimine (PEI)-functionalized graphene oxide (GO) complex efficiently loaded with the miR-214 inhibitor is assembled into silk fibroin/hydroxyapatite (SF/HAP) scaffolds that spatially control the release of the miR-214 inhibitor. Results: SF/HAP/GO scaffolds with nanosized GO show high mechanical strength, and their hierarchical microporous structures promote cell adhesion and growth. The SF/HAP/GO-PEI scaffolds loaded with mir-214 inhibitor (SF/HAP/GPM) were tested for their ability to enhance osteogenic differentiation by inhibiting the expression of miR-214 while inversely increasing the expression of activating transcription factor 4 (ATF4) and activating the Akt and ERK1/2 signaling pathways in mouse osteoblastic cells (MC3T3-E1) in vitro. Similarly, the scaffolds activated the osteoblastic activity of endogenous osteoblast cells to repair critical-sized bone defects in rats without the need for loading osteoblast cells. Conclusion: This technology is used to increase osteogenic differentiation and mineralized bone formation in bone defects, which helps to achieve cell-free scaffold-based miRNA-inhibitor therapy for bone tissue engineering.
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Yao J, Wang H, Chen M, Yang M. Recent advances in graphene-based nanomaterials: properties, toxicity and applications in chemistry, biology and medicine. Mikrochim Acta 2019; 186:395. [PMID: 31154528 DOI: 10.1007/s00604-019-3458-x] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Accepted: 04/27/2019] [Indexed: 12/12/2022]
Abstract
This review (with 239 refs.) summarizes the progress that has been made in applications of graphene-based nanomaterials (such as plain graphene, graphene oxides, doped graphene oxides, graphene quantums dots) in biosensing, imaging, drug delivery and diagnosis. Following an introduction into the field, a first large section covers the toxicity of graphene and its derivatives (with subsections on bacterial toxicity and tissue toxicity). The use of graphene-based nanomaterials in sensors is reviewed next, with subsections on electrochemical, FET-based, fluorescent, chemiluminescent and colorimetric sensors and probes. The large field of imaging is treated next, with subchapters on optical, PET-based, and magnetic resonance based methods. A concluding section summarizes the current status, addresses current challenges, and gives an outlook on potential future trends. Graphical Abstract Schematic presentation of the potential applications of graphene-based materials in life science and biomedicine, emphatically reflected in some vital areas such as DNA analysis, biological monitoring, drug delivery, in vitro labelling, in vivo imaging, tumor target, etc.
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Affiliation(s)
- Jun Yao
- College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, 610500, People's Republic of China. .,State Key Laboratory of Oil & Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, 610500, People's Republic of China.
| | - Heng Wang
- College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, 610500, People's Republic of China
| | - Min Chen
- College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, 610500, People's Republic of China
| | - Mei Yang
- Key Laboratory of Green Catalysis of Higher Education Institutes of Sichuan, College of Chemistry and Environmental Engineering, Sichuan University of Science and Engineering, Zigong, 643000, People's Republic of China.
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30
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Mousavi SM, Soroshnia S, Hashemi SA, Babapoor A, Ghasemi Y, Savardashtaki A, Amani AM. Graphene nano-ribbon based high potential and efficiency for DNA, cancer therapy and drug delivery applications. Drug Metab Rev 2019; 51:91-104. [DOI: 10.1080/03602532.2019.1582661] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Seyyed Mojtaba Mousavi
- Department of Medical Nanotechnology School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, Iran
- Pharmaceutical Sciences Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Sadaf Soroshnia
- Department of Chemical Engineering, University of Mohaghegh Ardabili (UMA), Ardabil, Iran
| | - Seyyed Alireza Hashemi
- Department of Medical Nanotechnology School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, Iran
- Pharmaceutical Sciences Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Aziz Babapoor
- Department of Chemical Engineering, University of Mohaghegh Ardabili (UMA), Ardabil, Iran
| | - Younes Ghasemi
- Department of Medical Nanotechnology School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Amir Savardashtaki
- Department of Medical Biotechnology, Faculty of Advanced Medical Sciences and Technology, Shiraz, Iran
| | - Ali Mohammad Amani
- Department of Medical Nanotechnology School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, Iran
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Dual Drugs Anticancer Nanoformulation using Graphene Oxide-PEG as Nanocarrier for Protocatechuic Acid and Chlorogenic Acid. Pharm Res 2019; 36:91. [PMID: 31020429 DOI: 10.1007/s11095-019-2621-8] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2018] [Accepted: 04/01/2019] [Indexed: 02/07/2023]
Abstract
BACKGROUND The chemotherapy of cancer has been complicated by poor bioavailability, adverse side effects, high dose requirement, drug resistance and low therapeutic indices. Cancer cells have different ways to inhibit the chemotherapeutic drugs, use of dual/multiple anticancer agents may be achieve better therapeutic effects in particular for drug resistant tumors. Designing a biocompatible delivery system, dual or multiple drugs could addressing these chemotherapy drawbacks and it is the focus of many current biomedical research. METHODS In the present study, graphene oxide-polyethylene glycol (GOPEG) nanocarrier is designed and loaded with two anticancer drugs; Protocatechuic acid (PCA) and Chlorogenic acid (CA). The designed anticancer nanocomposite was further coated with folic acid to target the cancer cells, as their surface membranes are overexpressed with folate receptors. RESULTS The particle size distribution of the designed nanocomposite was found to be narrow, 9-40 nm. The release profiles of the loaded drugs; PCA and CA was conducted in human body simulated PBS solutions of pH 7.4 (blood pH) and pH 4.8 (intracellular lysosomal pH). Anticancer properties were evaluated against cancerous cells i.e. liver cancer, HEPG2 and human colon cancer, HT-29 cells. The cytocompatbility was assessed on normal 3T3 fibroblasts cells. CONCLUSION The size of the final designed anticancer nanocomposite formulation, GOPEG-PCACA-FA was found to be distributed at 9-40 nm with a median of 8 nm. The in vitro release of the drugs PCA and CA was found to be of sustained manner which took more than 100 h for the release. Furthermore, the designed formulation was biocompatible with normal 3T3 cells and showed strong anticancer activity against liver and colon cancer cells.
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Gu Z, Zhu S, Yan L, Zhao F, Zhao Y. Graphene-Based Smart Platforms for Combined Cancer Therapy. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2019; 31:e1800662. [PMID: 30039878 DOI: 10.1002/adma.201800662] [Citation(s) in RCA: 180] [Impact Index Per Article: 36.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Revised: 03/25/2018] [Indexed: 06/08/2023]
Abstract
The extensive research of graphene and its derivatives in biomedical applications during the past few years has witnessed its significance in the field of nanomedicine. Starting from simple drug delivery systems, the application of graphene and its derivatives has been extended to a versatile platform of multiple therapeutic modalities, including photothermal therapy, photodynamic therapy, magnetic hyperthermia therapy, and sonodynamic therapy. In addition to monotherapy, graphene-based materials are widely applied in combined therapies for enhanced anticancer activity and reduced side effects. In particular, graphene-based materials are often designed and fabricated as "smart" platforms for stimuli-responsive nanocarriers, whose therapeutic effects can be activated by the tumor microenvironment, such as acidic pH and elevated glutathione (termed as "endogenous stimuli"), or light, magnetic, or ultrasonic stimuli (termed as "exogenous stimuli"). Herein, the recent advances of smart graphene platforms for combined therapy applications are presented, starting with the principle for the design of graphene-based smart platforms in combined therapy applications. Next, recent advances of combined therapies contributed by graphene-based materials, including chemotherapy-based, photothermal-therapy-based, and ultrasound-therapy-based synergistic therapy, are outlined. In addition, current challenges and future prospects regarding this promising field are discussed.
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Affiliation(s)
- Zhanjun Gu
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, China
- College of Materials Science and Optoelectronic Technology, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Shuang Zhu
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, China
| | - Liang Yan
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, China
| | - Feng Zhao
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, China
| | - Yuliang Zhao
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, China
- College of Materials Science and Optoelectronic Technology, University of Chinese Academy of Sciences, Beijing, 100049, China
- CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology of China, Chinese Academy of Sciences, Beijing, 100190, China
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Loh CY, Arya A, Naema AF, Wong WF, Sethi G, Looi CY. Signal Transducer and Activator of Transcription (STATs) Proteins in Cancer and Inflammation: Functions and Therapeutic Implication. Front Oncol 2019; 9:48. [PMID: 30847297 PMCID: PMC6393348 DOI: 10.3389/fonc.2019.00048] [Citation(s) in RCA: 223] [Impact Index Per Article: 44.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2018] [Accepted: 01/17/2019] [Indexed: 01/10/2023] Open
Abstract
Signal Transducer and Activator of Transcription (STAT) pathway is connected upstream with Janus kinases (JAK) family protein and capable of integrating inputs from different signaling pathways. Each family member plays unique functions in signal transduction and crucial in mediating cellular responses to different kind of cytokines. STAT family members notably STAT3 and STAT5 have been involved in cancer progression whereas STAT1 plays opposite role by suppressing tumor growth. Persistent STAT3/5 activation is known to promote chronic inflammation, which increases susceptibility of healthy cells to carcinogenesis. Here, we review the role of STATs in cancers and inflammation while discussing current therapeutic implications in different cancers and test models, especially the delivery of STAT3/5 targeting siRNA using nanoparticulate delivery system.
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Affiliation(s)
- Chin-Yap Loh
- School of Biosciences, Faculty of Health and Medical Sciences, Taylor's University, Subang Jaya, Malaysia
| | - Aditya Arya
- School of Medicine, Faculty of Health and Medical Sciences, Taylor's University, Subang Jaya, Malaysia
| | - Ahmed Fadhil Naema
- Center of Biotechnology Researches, University of Al-Nahrain, Baghdad, Iraq
| | - Won Fen Wong
- Department of Medical Microbiology, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Gautam Sethi
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Chung Yeng Looi
- School of Biosciences, Faculty of Health and Medical Sciences, Taylor's University, Subang Jaya, Malaysia
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Jiang BP, Zhou B, Lin Z, Liang H, Shen XC. Recent Advances in Carbon Nanomaterials for Cancer Phototherapy. Chemistry 2019; 25:3993-4004. [PMID: 30328167 DOI: 10.1002/chem.201804383] [Citation(s) in RCA: 74] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2018] [Revised: 10/15/2018] [Indexed: 02/06/2023]
Abstract
Carbon nanomaterials have received great attention from the scientific community over the past few decades because of their unique physical and chemical properties. In this minireview, we will summarize the recent progress of the use of various carbon nanomaterials in the field of cancer phototherapy. The structural characteristics of each category and the surface functionalization strategies of these nanomaterials will be briefly introduced before focusing on their therapeutic applications. Recent advances on their use in photothermal therapy, photodynamic therapy, and combined phototherapies are presented. Moreover, a few challenges and perspectives on the development of carbon nanomaterials for future theranostics are also discussed.
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Affiliation(s)
- Bang-Ping Jiang
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Science, Guangxi Normal University, Guilin, 541004, P.R. China
| | - Bo Zhou
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Science, Guangxi Normal University, Guilin, 541004, P.R. China
| | - Zhaoxing Lin
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Science, Guangxi Normal University, Guilin, 541004, P.R. China
| | - Hong Liang
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Science, Guangxi Normal University, Guilin, 541004, P.R. China
| | - Xing-Can Shen
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Science, Guangxi Normal University, Guilin, 541004, P.R. China
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Roche KC, Medik YB, Rodgers Z, Warner S, Wang AZ. Cancer Nanotherapeutics Administered by Non-conventional Routes. Bioanalysis 2019. [DOI: 10.1007/978-3-030-01775-0_11] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Graphene Oxide⁻PEG⁻Protocatechuic Acid Nanocomposite Formulation with Improved Anticancer Properties. NANOMATERIALS 2018; 8:nano8100820. [PMID: 30314340 PMCID: PMC6215288 DOI: 10.3390/nano8100820] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/20/2018] [Revised: 10/06/2018] [Accepted: 10/06/2018] [Indexed: 01/17/2023]
Abstract
The treatment of cancer through chemotherapy is limited by its toxicity to healthy tissues and organs, and its inability to target the cancer site. In this study, we have designed an anticancer nanocomposite delivery system for protocatechuic acid (PCA) using graphene oxide–polyethylene glycol as the nanocarrier, and coated with folic acid (GO–PEG–PCA–FA) for targeting the cancer cells. The designed anticancer delivery system was found to show much better anticancer activity than the free drug PCA against liver cancer HEP-G2 cells and human colon cancer HT-29 cells; at same time, it was found to be less toxic to normal fibroblast 3T3 cells. The folate-coated anticancer delivery system was found to show better activity then the free drug and the uncoated anticancer delivery system. The in vitro release of the PCA was found to be sustained in human physiological pHs, i.e., blood pH 7.4 and intracellular lysosomal pH 4.8. These in vitro findings are highly encouraging for further in vivo evaluation studies.
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Ghosal K, Sarkar K. Biomedical Applications of Graphene Nanomaterials and Beyond. ACS Biomater Sci Eng 2018; 4:2653-2703. [DOI: 10.1021/acsbiomaterials.8b00376] [Citation(s) in RCA: 127] [Impact Index Per Article: 21.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Krishanu Ghosal
- Gene Therapy and Tissue Engineering Lab, Department of Polymer Science & Technology, University of Calcutta, 92 A.P.C. Road, Kolkata 700 009, India
| | - Kishor Sarkar
- Gene Therapy and Tissue Engineering Lab, Department of Polymer Science & Technology, University of Calcutta, 92 A.P.C. Road, Kolkata 700 009, India
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Keles E, Song Y, Du D, Dong WJ, Lin Y. Recent progress in nanomaterials for gene delivery applications. Biomater Sci 2018; 4:1291-309. [PMID: 27480033 DOI: 10.1039/c6bm00441e] [Citation(s) in RCA: 133] [Impact Index Per Article: 22.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Nanotechnology-based gene delivery is the division of nanomedicine concerned with the synthesis, characterization, and functionalization of nanomaterials to be used in targeted-gene delivery applications. Nanomaterial-based gene delivery systems hold great promise for curing fatal inherited and acquired diseases, including neurological disorders, cancer, cardiovascular diseases, and acquired immunodeficiency syndrome (AIDS). However, their use in clinical applications is still controversial. To date, the Food and Drug Administration (FDA) has not approved any gene delivery system because of the unknown long-term toxicity and the low gene transfection efficiency of nanomaterials in vivo. Compared to viral vectors, nonviral gene delivery vectors are characterized by a low preexisting immunogenicity, which is important for preventing a severe immune response. In addition, nonviral vectors provide higher loading capacity and ease of fabrication. For these reasons, this review article focuses on applications of nonviral gene delivery systems, including those based on lipids, polymers, graphene, and other inorganic nanoparticles, and discusses recent advances in nanomaterials for gene therapy. Methods of synthesizing these nanomaterials are briefly described from a materials science perspective. Also, challenges, critical issues, and concerns about the in vivo applications of nanomaterial-based gene delivery systems are discussed. It should be noted that this article is not a comprehensive review of the literature.
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Affiliation(s)
- Erhan Keles
- Gene and Linda Voiland School of Chemical Engineering and Bioengineering, Washington State University, Pullman, WA 99164, USA
| | - Yang Song
- Department of Mechanical and Materials Engineering, Washington State University, Pullman, WA 99164, USA.
| | - Dan Du
- Department of Mechanical and Materials Engineering, Washington State University, Pullman, WA 99164, USA.
| | - Wen-Ji Dong
- Gene and Linda Voiland School of Chemical Engineering and Bioengineering, Washington State University, Pullman, WA 99164, USA and Department of Integrated Physiology and Neuroscience, Washington State University, Pullman, WA 99164, USA
| | - Yuehe Lin
- Department of Mechanical and Materials Engineering, Washington State University, Pullman, WA 99164, USA.
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Dou C, Ding N, Luo F, Hou T, Cao Z, Bai Y, Liu C, Xu J, Dong S. Graphene-Based MicroRNA Transfection Blocks Preosteoclast Fusion to Increase Bone Formation and Vascularization. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2018; 5:1700578. [PMID: 29619305 PMCID: PMC5826985 DOI: 10.1002/advs.201700578] [Citation(s) in RCA: 68] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2017] [Revised: 10/25/2017] [Indexed: 05/26/2023]
Abstract
The objective of this study is to design a graphene-based miRNA transfection drug delivery system for antiresorptive therapy. An efficient nonviral gene delivery system is developed using polyethylenimine (PEI) functionalized graphene oxide (GO) complex loaded with miR-7b overexpression plasmid. GO-PEI complex exhibits excellent transfection efficiency within the acceptable range of cytotoxicity. The overexpression of miR-7b after GO-PEI-miR-7b transfection significantly abrogates osteoclast (OC) fusion and bone resorption activity by hampering the expression of an essential fusogenic molecule dendritic cell-specific transmembrane protein. However, osteoclastogenesis occurs without cell-cell fusion and preosteoclast (POC) is preserved. Through preservation of POC, GO-PEI-miR-7b transfection promotes mesenchymal stem cell osteogenesis and endothelial progenitor cells angiogenesis in the coculture system. Platelet-derived growth factor-BB secreted by POC is increased by GO-PEI-miR-7b both in vitro and in vivo. In treating osteoporotic ovariectomized mice, GO-PEI-miR-7b significantly enhances bone mineral density, bone volume as well as bone vascularization through increasing CD31hiEmcnhi cell number. This study provides a cell-cell fusion targeted miRNA transfection drug delivery strategy in treating bone disorders with excessive osteoclastic bone resorption.
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Affiliation(s)
- Ce Dou
- Department of OrthopedicsSouthwest HospitalThird Military Medical UniversityChongqing400038China
| | - Ning Ding
- Department of OrthopedicsSouthwest HospitalThird Military Medical UniversityChongqing400038China
| | - Fei Luo
- Department of OrthopedicsSouthwest HospitalThird Military Medical UniversityChongqing400038China
| | - Tianyong Hou
- Department of OrthopedicsSouthwest HospitalThird Military Medical UniversityChongqing400038China
| | - Zhen Cao
- Department of Biomedical Materials ScienceThird Military Medical UniversityChongqing400038China
| | - Yun Bai
- Department of Biomedical Materials ScienceThird Military Medical UniversityChongqing400038China
| | - Chuan Liu
- Department of Biomedical Materials ScienceThird Military Medical UniversityChongqing400038China
| | - Jianzhong Xu
- Department of OrthopedicsSouthwest HospitalThird Military Medical UniversityChongqing400038China
| | - Shiwu Dong
- Department of Biomedical Materials ScienceThird Military Medical UniversityChongqing400038China
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Zhang L, Zhou Q, Song W, Wu K, Zhang Y, Zhao Y. Dual-Functionalized Graphene Oxide Based siRNA Delivery System for Implant Surface Biomodification with Enhanced Osteogenesis. ACS APPLIED MATERIALS & INTERFACES 2017; 9:34722-34735. [PMID: 28925678 DOI: 10.1021/acsami.7b12079] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Surface functionalization by small interfering RNA (siRNA) is a novel strategy for improved implant osseointegration. A gene delivery system with safety and high transfection activity is a crucial factor for an siRNA-functionalized implant to exert its biological function. To this end, polyethylene glycol (PEG) and polyethylenimine (PEI) dual-functionalized graphene oxide (GO; nGO-PEG-PEI) may present a promising siRNA vector. In this study, nanosized nGO-PEG-PEI was prepared and optimized for siRNA delivery. Titania nanotubes (NTs) fabricated by anodic oxidation were biomodified with nGO-PEG-PEI/siRNA by cathodic electrodeposition, designated as NT-GPP/siRNA. NT-GPP/siRNA possessed benign cytocompatibility, as evaluated by cell adhesion and proliferation. Cellular uptake and knockdown efficiency of the NT-GPP/siRNA were assessed by MC3T3-E1 cells, which exhibited high siRNA delivery efficiency and sustained target gene silencing. Casein kinase-2 interacting protein-1 (Ckip-1) is a negative regulator of bone formation. siRNA-targeting Ckip-1 (siCkip-1) was introduced to the implant, and a series of in vitro and in vivo experiments were carried out to evaluate the osteogenic capacity of NT-GPP/siCkip-1. NT-GPP/siCkip-1 dramatically improved the in vitro osteogenic differentiation of MC3T3-E1 cells in terms of improved osteogenesis-related gene expression, and increased alkaline phosphatase (ALP) production, collagen secretion, and extracellular matrix (ECM) mineralization. Moreover, NT-GPP/siCkip-1 led to apparently enhanced in vivo osseointegration, as indicated by histological staining and EDX line scanning. Collectively, these findings suggest that NT-GPP/siRNA represents a practicable and promising approach for implant functionalization, showing clinical potential for dental and orthopedic applications.
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Affiliation(s)
- Li Zhang
- The State Key Laboratory of Military Stomatology, National Clinical Research Center for Oral Diseases, and Shaanxi Key Laboratory of Oral Diseases, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University , Xi'an 710032, China
| | - Qing Zhou
- Department of Pharmaceutical Analysis, School of Pharmacy, The Fourth Military Medical University , Xi'an 710032, China
| | - Wen Song
- The State Key Laboratory of Military Stomatology, National Clinical Research Center for Oral Diseases, and Shaanxi Key Laboratory of Oral Diseases, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University , Xi'an 710032, China
| | - Kaimin Wu
- Department of Stomatology, 401 Military Hospital , Qingdao 266071, China
| | - Yumei Zhang
- The State Key Laboratory of Military Stomatology, National Clinical Research Center for Oral Diseases, and Shaanxi Key Laboratory of Oral Diseases, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University , Xi'an 710032, China
| | - Yimin Zhao
- The State Key Laboratory of Military Stomatology, National Clinical Research Center for Oral Diseases, and Shaanxi Key Laboratory of Oral Diseases, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University , Xi'an 710032, China
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Wu L, Xie J, Li T, Mai Z, Wang L, Wang X, Chen T. Gene delivery ability of polyethylenimine and polyethylene glycol dual-functionalized nanographene oxide in 11 different cell lines. ROYAL SOCIETY OPEN SCIENCE 2017; 4:170822. [PMID: 29134085 PMCID: PMC5666268 DOI: 10.1098/rsos.170822] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2017] [Accepted: 09/22/2017] [Indexed: 05/03/2023]
Abstract
We recently developed a polyethylenimine (PEI) and polyethylene glycol (PEG) dual-functionalized reduced graphene oxide (GO) (PEG-nrGO-PEI, RGPP) for high-efficient gene delivery in HepG2 and Hela cell lines. To evaluate the feasibility and applicability of RGPP as a gene delivery carrier, we here assessed the transfection efficiency of RGPP on gene plasmids and siRNA in 11 different cell lines. Commercial polyalkyleneimine cation transfection reagent (TR) was used as comparison. In HepG2 cells, RGPP exhibited much stronger delivery ability for siRNA and large size plasmids than TR. For green fluorescent protein (GFP) plasmid, RGPP showed about 47.1% of transfection efficiency in primary rabbit articular chondrocytes, and about 27% of transfection efficiency in both SH-SY5Y and A549 cell lines. RGPP exhibited about 37.2% of GFP plasmid transfection efficiency in EMT6 cells and about 26.0% of GFP plasmid transfection efficiency in LO2 cells, but induced about 33% of cytotoxicity in both cell lines. In 4T1 and H9C2 cell lines, RGPP had less than 10% of GFP plasmid transfection efficiency. Collectively, RGPP is a potential nano-carrier for high-efficiency gene delivery, and needs to be further optimized for different cell lines.
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Affiliation(s)
- Liping Wu
- MOE Key Laboratory of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou, Guangdong, People's Republic of China
| | - Jinshan Xie
- MOE Key Laboratory of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou, Guangdong, People's Republic of China
- Department of Pain Management, The First Affiliated Hospital of Jinan University, Guangzhou, Guangdong, People's Republic of China
| | - Tan Li
- MOE Key Laboratory of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou, Guangdong, People's Republic of China
| | - Zihao Mai
- MOE Key Laboratory of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou, Guangdong, People's Republic of China
| | - Lu Wang
- MOE Key Laboratory of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou, Guangdong, People's Republic of China
| | - Xiaoping Wang
- Department of Pain Management, The First Affiliated Hospital of Jinan University, Guangzhou, Guangdong, People's Republic of China
| | - Tongsheng Chen
- MOE Key Laboratory of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou, Guangdong, People's Republic of China
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Yin D, Li Y, Guo B, Liu Z, Xu Y, Wang X, Du Y, Xu L, Meng Y, Zhao X, Zhang L. Plasmid-Based Stat3 siRNA Delivered by Functional Graphene Oxide Suppresses Mouse Malignant Melanoma Cell Growth. Oncol Res 2017; 23:229-36. [PMID: 27098146 PMCID: PMC7838696 DOI: 10.3727/096504016x14550280421449] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
RNA interference (RNAi) has been used for cancer gene therapy in recent years. However, the application of RNAi is hindered in the absence of safe and efficient gene delivery. In this article, a novel vehicle of graphene oxide functionalized with polyethylenimine and polyethylene glycol (GO-PEI-PEG) was successfully synthetized and then used to deliver plasmid-based Stat3 siRNA. The carrier can readily bind plasmid with high transfection efficiency. Moreover, molecular biology studies reveal that Stat3-related gene and protein expressions were significantly inhibited, suggesting that the formation of GO-PEI-PEG complexes could be utilized as a promising gene delivery in cancer therapy.
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Affiliation(s)
- Di Yin
- Prostate Diseases Prevention and Treatment Research Centre and Department of Pathophysiology, Norman Bethune Medical School, Jilin University, Changchun, China
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Yin F, Hu K, Chen Y, Yu M, Wang D, Wang Q, Yong KT, Lu F, Liang Y, Li Z. SiRNA Delivery with PEGylated Graphene Oxide Nanosheets for Combined Photothermal and Genetherapy for Pancreatic Cancer. Am J Cancer Res 2017; 7:1133-1148. [PMID: 28435453 PMCID: PMC5399581 DOI: 10.7150/thno.17841] [Citation(s) in RCA: 130] [Impact Index Per Article: 18.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2016] [Accepted: 01/02/2017] [Indexed: 12/13/2022] Open
Abstract
Since the successful exfoliation of graphene from graphite in 2004, graphene and graphene oxide (GO) have been considered the most promising two-dimensional (2D) nanomaterials with distinguished physical and chemical characteristics and have attracted great attention in many different fields. Graphene oxide is well-known for its distinct physiochemical properties and shows only minimal cytotoxicity compared to carbon nanotubes. Until now, only limited efforts have been invested in utilizing GO for gene therapy in pancreatic cancer treatments. In this study, we utilized multi-functionalized monolayer GO as a gene delivery system to efficiently co-deliver HDAC1 and K-Ras siRNAs (small interfering RNAs targeting the HDAC1 gene and the G12C mutant K-Ras gene, respectively) to specifically target pancreatic cancer cells MIA PaCa-2. The systematic mechanistic elucidation of the dual gene silencing effects indicated the inactivation of both the HDAC1 and the K-Ras gene, thereby causing apoptosis, proliferation inhibition and cell cycle arrest in treated MIA PaCa-2 cells. The synergistic combination of gene silencing and NIR light thermotherapy showed significant anticancer efficacy, inhibiting in vivo tumor volume growth by >80%. Furthermore, GO can be metabolized in the mouse model within a reasonable period of time without obvious side effects. Based on preliminary in vivo application, this study for the first time indicates the promising potential of functionalized GO as a vehicle for gene therapy delivery with low toxicity for the treatment of pancreatic adenocarcinoma.
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Foreman HCC, Lalwani G, Kalra J, Krug LT, Sitharaman B. Gene delivery to mammalian cells using a graphene nanoribbon platform. J Mater Chem B 2017; 5:2347-2354. [DOI: 10.1039/c6tb03010f] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
We developed a novel oxidized graphene nanoribbon-based platform (O-GNR) for gene delivery of double-stranded DNA into mammalian cells.
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Affiliation(s)
| | - Gaurav Lalwani
- Theragnostic Technologies Inc
- Long Island High Technology Incubator Suite 123
- Stony Brook
- USA
| | - Jaslin Kalra
- Theragnostic Technologies Inc
- Long Island High Technology Incubator Suite 123
- Stony Brook
- USA
| | - Laurie T. Krug
- Department of Molecular Genetics and Microbiology
- Stony Brook University
- Stony Brook
- USA
| | - Balaji Sitharaman
- Department of Biomedical Engineering
- Stony Brook University
- Stony Brook
- USA
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Gulzar A, Yang P, He F, Xu J, Yang D, Xu L, Jan MO. Bioapplications of graphene constructed functional nanomaterials. Chem Biol Interact 2017; 262:69-89. [DOI: 10.1016/j.cbi.2016.11.019] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2016] [Revised: 10/28/2016] [Accepted: 11/17/2016] [Indexed: 10/20/2022]
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46
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Huang YP, Hung CM, Hsu YC, Zhong CY, Wang WR, Chang CC, Lee MJ. Suppression of Breast Cancer Cell Migration by Small Interfering RNA Delivered by Polyethylenimine-Functionalized Graphene Oxide. NANOSCALE RESEARCH LETTERS 2016; 11:247. [PMID: 27173676 PMCID: PMC4864886 DOI: 10.1186/s11671-016-1463-0] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2016] [Accepted: 05/03/2016] [Indexed: 05/14/2023]
Abstract
The carbon-based nanomaterial graphene can be chemically modified to associate with various molecules such as chemicals and biomolecules and developed as novel carriers for drug and gene delivery. In this study, a nonviral gene transfection reagent was produced by functionalizing graphene oxide (GO) with a polycationic polymer, polyethylenimine (PEI), to increase the biocompatibility of GO and to transfect small interfering RNA (siRNA) against C-X-C chemokine receptor type 4 (CXCR4), a biomarker associated with cancer metastasis, into invasive breast cancer cells. PEI-functionalized GO (PEI-GO) was a homogeneous aqueous solution that remained in suspension during storage at 4 °C for at least 6 months. The particle size of PEI-GO was 172 ± 4.58 and 188 ± 5.00 nm at 4 and 25 °C, respectively, and increased slightly to 262 ± 17.6 nm at 37 °C, but remained unaltered with time. Binding affinity of PEI-GO toward siRNA was assessed by electrophoretic mobility shift assay (EMSA), in which PEI-GO and siRNA were completely associated at a PEI-GO:siRNA weight ratio of 2:1 and above. The invasive breast cancer cell line, MDA-MB-231, was transfected with PEI-GO in complex with siRNAs against CXCR4 (siCXCR4). Suppression of the mRNA and protein expression of CXCR4 by the PEI-GO/siCXCR4 complex was confirmed by real-time PCR and western blot analysis. In addition, the metastatic potential of MDA-MB-231 cells was attenuated by the PEI-GO/siCXCR4 complex as demonstrated in wound healing assay. Our results suggest that PEI-GO is effective in the delivery of siRNA and may contribute to targeted gene therapy to suppress cancer metastasis.
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Affiliation(s)
- Yuan-Pin Huang
- Department of Cosmetics and Fashion Styling, Cheng Shiu University, Kaohsiung, Taiwan
| | - Chao-Ming Hung
- Department of General Surgery, E-Da Hospital, Kaohsiung, Taiwan
| | - Yi-Chiang Hsu
- Graduate Institute of Medical Sciences, Chang Jung Christian University, Tainan, Taiwan
- Innovative Research Center of Medicine, Chang Jung Christian University, Tainan, Taiwan
| | - Cai-Yan Zhong
- Department of Bioscience Technology, Chang Jung Christian University, No. 1 Changda Rd., Gueiren District, Tainan City, 71101, Taiwan
| | - Wan-Rou Wang
- Department of Bioscience Technology, Chang Jung Christian University, No. 1 Changda Rd., Gueiren District, Tainan City, 71101, Taiwan
| | - Chi-Chang Chang
- Department of Obstetrics and Gynecology, E-Da Hospital, Kaohsiung, Taiwan
| | - Mon-Juan Lee
- Innovative Research Center of Medicine, Chang Jung Christian University, Tainan, Taiwan.
- Department of Bioscience Technology, Chang Jung Christian University, No. 1 Changda Rd., Gueiren District, Tainan City, 71101, Taiwan.
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Vincent M, de Lázaro I, Kostarelos K. Graphene materials as 2D non-viral gene transfer vector platforms. Gene Ther 2016; 24:123-132. [PMID: 27874854 DOI: 10.1038/gt.2016.79] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2016] [Revised: 09/25/2016] [Accepted: 10/13/2016] [Indexed: 12/18/2022]
Abstract
Advances in genomics and gene therapy could offer solutions to many diseases that remain incurable today, however, one of the critical reasons halting clinical progress is due to the difficulty in designing efficient and safe delivery vectors for the appropriate genetic cargo. Safety and large-scale production concerns counter-balance the high gene transfer efficiency achieved with viral vectors, while non-viral strategies have yet to become sufficiently efficient. The extraordinary physicochemical, optical and photothermal properties of graphene-based materials (GBMs) could offer two-dimensional components for the design of nucleic acid carrier systems. We discuss here such properties and their implications for the optimization of gene delivery. While the design of such vectors is still in its infancy, we provide here an exhaustive and up-to-date analysis of the studies that have explored GBMs as gene transfer vectors, focusing on the functionalization strategies followed to improve vector performance and on the biological effects attained.
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Affiliation(s)
- M Vincent
- Nanomedicine Laboratory, Faculty of Medical and Human Sciences and National Graphene Institute, University of Manchester, Manchester, UK
| | - I de Lázaro
- Nanomedicine Laboratory, Faculty of Medical and Human Sciences and National Graphene Institute, University of Manchester, Manchester, UK
| | - K Kostarelos
- Nanomedicine Laboratory, Faculty of Medical and Human Sciences and National Graphene Institute, University of Manchester, Manchester, UK
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Imani R, Shao W, Taherkhani S, Emami SH, Prakash S, Faghihi S. Dual-functionalized graphene oxide for enhanced siRNA delivery to breast cancer cells. Colloids Surf B Biointerfaces 2016; 147:315-325. [DOI: 10.1016/j.colsurfb.2016.08.015] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2016] [Revised: 08/07/2016] [Accepted: 08/11/2016] [Indexed: 12/11/2022]
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Shim G, Kim MG, Park JY, Oh YK. Graphene-based nanosheets for delivery of chemotherapeutics and biological drugs. Adv Drug Deliv Rev 2016; 105:205-227. [PMID: 27085467 DOI: 10.1016/j.addr.2016.04.004] [Citation(s) in RCA: 111] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2016] [Revised: 03/17/2016] [Accepted: 04/07/2016] [Indexed: 01/12/2023]
Abstract
Graphene-based nanosheets (GNS), including graphenes, graphene oxides and reduced graphene oxides, have properties suitable for delivery of various molecules. With their two-dimensional structures, GNS provide relatively high surface areas and capacity for non-covalent π-π stacking and hydrophobic interactions with various drug molecules. Currently, GNS-based delivery applications extend to chemotherapeutics as well as biological drugs, including nucleic acid drugs, proteins, and peptides. Surfaces of GNS have been modified with various polymers, such as polyethylene glycol and biopolymers, which enhance biocompatibility and increase drug loading. Anticancer drugs are prominent among chemotherapeutic agents tested, and have been loaded onto GNS with relatively high loading capacities compared with other nanocarriers. For enhanced distribution to specific tissues, GNS have been covalently or non-covalently modified with targeting ligands, including folic acid, transferrins, and others. In this review, we cover the current status of GNS for delivery of anticancer chemotherapeutics and biological drugs, with a focus on nucleic acid drugs. Remaining challenges for the application of GNS for drug-delivery systems and future perspectives are also addressed.
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DNA-Dye-Conjugates: Conformations and Spectra of Fluorescence Probes. PLoS One 2016; 11:e0160229. [PMID: 27467071 PMCID: PMC4965132 DOI: 10.1371/journal.pone.0160229] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2016] [Accepted: 07/16/2016] [Indexed: 02/04/2023] Open
Abstract
Extensive molecular-dynamics (MD) simulations have been used to investigate DNA-dye and DNA-photosensitizer conjugates, which act as reactants in templated reactions leading to the generation of fluorescent products in the presence of specific desoxyribonucleic acid sequences (targets). Such reactions are potentially suitable for detecting target nucleic acids in live cells by fluorescence microscopy or flow cytometry. The simulations show how the attached dyes/photosensitizers influence DNA structure and reveal the relative orientations of the chromophores with respect to each other. Our results will help to optimize the reactants for the templated reactions, especially length and structure of the spacers used to link reporter dyes or photosensitizers to the oligonucleotides responsible for target recognition. Furthermore, we demonstrate that the structural ensembles obtained from the simulations can be used to calculate steady-state UV-vis absorption and emission spectra. We also show how important quantities describing the quenching of the reporter dye via fluorescence resonance energy transfer (FRET) can be calculated from the simulation data, and we compare these for different relative chromophore geometries.
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