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Yuan R, Zhang Y, Liao L, Ge Y, Li W, Zhi Q. Biomineralization-Inspired Anti-Caries Strategy Based on Multifunctional Nanogels as Mineral Feedstock Carriers. Int J Nanomedicine 2023; 18:4933-4947. [PMID: 37693886 PMCID: PMC10488770 DOI: 10.2147/ijn.s418465] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Accepted: 08/28/2023] [Indexed: 09/12/2023] Open
Abstract
Background Dentin caries remains a significant public concern, with no clinically viable material that effectively combines remineralization and antimicrobial properties. To address this issue, this study focused on the development of a bio-inspired multifunctional nanogel with both antibacterial and biomineralization properties. Methods First, p(NIPAm-co-DMC) (PNPDC) copolymers were synthesized from N-isopropylacrylamide (NIPAm) and 2-methacryloyloxyethyl-trimethyl ammonium chloride (DMC). Subsequently, PNPDC was combined with γ-polyglutamic acid (γ-PGA) through physical cross-linking to form nanogels. These nanogels served as templates for the mineralization of calcium phosphate (Cap), resulting in Cap-loaded PNPDC/PGA nanogels. The nanogels were characterized using various techniques, including TEM, particle tracking analysis, XRD, and FTIR. The release properties of ions were also assessed. In addition, the antibacterial properties of the Cap-loaded PNPDC/PGA nanogels were evaluated using the broth microdilution method and a biofilm formation assay. The remineralization effects were examined on both demineralized dentin and type I collagen in vitro. Results PNPDC/PGA nanogels were successfully synthesized and loaded with Cap. The diameter of the Cap-loaded PNPDC/PGA nanogels was measured as 196.5 nm at 25°C and 162.3 nm at 37°C. These Cap-loaded nanogels released Ca2+ and PO43- ions quickly, effectively blocking dental tubules with a depth of 10 μm and promoting the remineralization of demineralized dentin within 7 days. Additionally, they facilitated the heavy intrafibrillar mineralization of type I collagen within 3 days. Moreover, the Cap-loaded nanogels exhibited MIC50 and MIC90 values of 12.5 and 50 mg/mL against Streptococcus mutans, respectively, with an MBC value of 100 mg/mL. At a concentration of 50 mg/mL, the Cap-loaded nanogels also demonstrated potent inhibitory effects on biofilm formation by Streptococcus mutans while maintaining good biocompatibility. Conclusion Cap-loaded PNPDC/PGA nanogels are a multifunctional biomimetic system with antibacterial and dentin remineralization effects. This strategy of using antibacterial nanogels as mineral feedstock carriers offered fresh insight into the clinical management of caries.
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Affiliation(s)
- Rui Yuan
- Hospital of Stomatology, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong, 510030, People’s Republic of China
| | - Yuwen Zhang
- Hospital of Stomatology, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong, 510030, People’s Republic of China
| | - Liqiong Liao
- Biomaterials Research Center, School of Biomedical Engineering, Southern Medical University, Guangzhou, Guangdong, 510515, People’s Republic of China
| | - Yige Ge
- Hospital of Stomatology, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong, 510030, People’s Republic of China
| | - Weichang Li
- Hospital of Stomatology, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong, 510030, People’s Republic of China
| | - Qinghui Zhi
- Hospital of Stomatology, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong, 510030, People’s Republic of China
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Dorost P, García-Alvarez M, Martínez de Ilarduya A. Hydrophobic Modification of Poly(γ-glutamic acid) by Grafting 4-Phenyl-butyl Side Groups for the Encapsulation and Release of Doxorubicin. Pharmaceutics 2023; 15:pharmaceutics15051377. [PMID: 37242619 DOI: 10.3390/pharmaceutics15051377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 04/20/2023] [Accepted: 04/27/2023] [Indexed: 05/28/2023] Open
Abstract
The delivery of drugs is a great challenge, since most of active pharmaceutical ingredients developed today are hydrophobic and poorly water soluble. From this perspective, drug encapsulation on biodegradable and biocompatible polymers can surpass this problem. Poly(γ-glutamic acid) (PGGA), a bioedible and biocompatible polymer has been chosen for this purpose. Carboxylic side groups of PGGA have been partially esterified with 4-phenyl-butyl bromide, producing a series of aliphatic-aromatic ester derivatives with different hydrophilic-lipophilic balances. Using nanoprecipitation or emulsion/evaporation methods, these copolymers were self-assembled in a water solution, forming nanoparticles with average diameters between 89 and 374 nm and zeta potential values between -13.1 and -49.5 mV. The hydrophobic core containing 4-phenyl-butyl side groups was used for the encapsulation of an anticancer drug, such as Doxorubicin (DOX). The highest encapsulation efficiency was reached for a copolymer derived from PGGA, with a 46 mol% degree of esterification. Drug release studies carried out for 5 days at different pHs (4.2 and 7.4) indicated that DOX was released faster at pH 4.2, revealing the potential of these nanoparticles as chemotherapy agents.
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Affiliation(s)
- Porochista Dorost
- Departament d'Enginyeria Química, Universitat Politècnica de Catalunya, ETSEIB, Diagonal 647, 08028 Barcelona, Spain
| | - Montserrat García-Alvarez
- Departament d'Enginyeria Química, Universitat Politècnica de Catalunya, ETSEIB, Diagonal 647, 08028 Barcelona, Spain
| | - Antxon Martínez de Ilarduya
- Departament d'Enginyeria Química, Universitat Politècnica de Catalunya, ETSEIB, Diagonal 647, 08028 Barcelona, Spain
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Liao Z, Huang J, Lo PC, Lovell JF, Jin H, Yang K. Self-adjuvanting cancer nanovaccines. J Nanobiotechnology 2022; 20:345. [PMID: 35883176 PMCID: PMC9316869 DOI: 10.1186/s12951-022-01545-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2022] [Accepted: 07/04/2022] [Indexed: 11/12/2022] Open
Abstract
Nanovaccines, a new generation of vaccines that use nanoparticles as carriers and/or adjuvants, have been widely used in the prevention and treatment of various diseases, including cancer. Nanovaccines have sparked considerable interest in cancer therapy due to a variety of advantages, including improved access to lymph nodes (LN), optimal packing and presentation of antigens, and induction of a persistent anti-tumor immune response. As a delivery system for cancer vaccines, various types of nanoparticles have been designed to facilitate the delivery of antigens and adjuvants to lymphoid organs and antigen-presenting cells (APCs). Particularly, some types of nanoparticles are able to confer an immune-enhancing capability and can themselves be utilized for adjuvant-like effect for vaccines, suggesting a direction for a better use of nanomaterials and the optimization of cancer vaccines. However, this role of nanoparticles in vaccines has not been well studied. To further elucidate the role of self-adjuvanting nanovaccines in cancer therapy, we review the mechanisms of antitumor vaccine adjuvants with respect to nanovaccines with self-adjuvanting properties, including enhancing cross-presentation, targeting signaling pathways, biomimicking of the natural invasion process of pathogens, and further unknown mechanisms. We surveyed self-adjuvanting cancer nanovaccines in clinical research and discussed their advantages and challenges. In this review, we classified self-adjuvanting cancer nanovaccines according to the underlying immunomodulatory mechanism, which may provide mechanistic insights into the design of nanovaccines in the future.
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Affiliation(s)
- Zhiyun Liao
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Jing Huang
- College of Biomedicine and Health and College of Life Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
| | - Pui-Chi Lo
- Department of Biomedical Sciences, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China
| | - Jonathan F Lovell
- Department of Biomedical Engineering, University at Buffalo, State University of New York, Buffalo, NY, 14260, USA
| | - Honglin Jin
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China. .,College of Biomedicine and Health and College of Life Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China.
| | - Kunyu Yang
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.
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Li D, Hou L, Gao Y, Tian Z, Fan B, Wang F, Li S. Recent Advances in Microbial Synthesis of Poly-γ-Glutamic Acid: A Review. Foods 2022; 11:foods11050739. [PMID: 35267372 PMCID: PMC8909396 DOI: 10.3390/foods11050739] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Revised: 02/12/2022] [Accepted: 02/26/2022] [Indexed: 02/01/2023] Open
Abstract
Poly-γ-glutamic acid (γ-PGA) is a natural, safe, non-immunogenic, biodegradable, and environmentally friendly glutamic biopolymer. γ-PGA has been regarded as a promising bio-based materials in the food field, medical field, even in environmental engineering field, and other industrial fields. Microbial synthesis is an economical and effective way to synthesize γ-PGA. Bacillus species are the most widely studied producing strains. γ-PGA biosynthesis involves metabolic pathway of racemization, polymerization, transfer, and catabolism. Although microbial synthesis of γ-PGA has already been used extensively, productivity and yield remain the major constraints for its industrial application. Metabolic regulation is an attempt to solve the above bottleneck problems and meet the demands of commercialization. Therefore, it is important to understand critical factors that influence γ-PGA microbial synthesis in depth. This review focuses on production strains, biosynthetic pathway, and metabolic regulation. Moreover, it systematically summarizes the functional properties, purification procedure, and industrial application of γ-PGA.
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Affiliation(s)
- Danfeng Li
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, No. 2 Yuan Ming Yuan West Road, Beijing 100193, China; (D.L.); (L.H.); (Y.G.); (Z.T.); (B.F.)
| | - Lizhen Hou
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, No. 2 Yuan Ming Yuan West Road, Beijing 100193, China; (D.L.); (L.H.); (Y.G.); (Z.T.); (B.F.)
| | - Yaxin Gao
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, No. 2 Yuan Ming Yuan West Road, Beijing 100193, China; (D.L.); (L.H.); (Y.G.); (Z.T.); (B.F.)
| | - Zhiliang Tian
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, No. 2 Yuan Ming Yuan West Road, Beijing 100193, China; (D.L.); (L.H.); (Y.G.); (Z.T.); (B.F.)
| | - Bei Fan
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, No. 2 Yuan Ming Yuan West Road, Beijing 100193, China; (D.L.); (L.H.); (Y.G.); (Z.T.); (B.F.)
- Key Laboratory of Agro-Products Quality and Safety Control in Storage and Transport Process, Ministry of Agriculture and Rural Affairs, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Fengzhong Wang
- Key Laboratory of Agro-Products Quality and Safety Control in Storage and Transport Process, Ministry of Agriculture and Rural Affairs, Chinese Academy of Agricultural Sciences, Beijing 100193, China
- Key Laboratory of Agro-Products Processing, Ministry of Agriculture and Rural Affairs, Chinese Academy of Agricultural Sciences, Beijing 100193, China
- Correspondence: (F.W.); (S.L.); Tel.: +86-010-62815977 (F.W.); +86-010-62810295 (S.L.)
| | - Shuying Li
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, No. 2 Yuan Ming Yuan West Road, Beijing 100193, China; (D.L.); (L.H.); (Y.G.); (Z.T.); (B.F.)
- Correspondence: (F.W.); (S.L.); Tel.: +86-010-62815977 (F.W.); +86-010-62810295 (S.L.)
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Johnson LC, Akinmola AT, Scholz C. Poly(glutamic acid): From natto to drug delivery systems. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2022. [DOI: 10.1016/j.bcab.2022.102292] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Controlled Release of Chlorogenic Acid from Polyvinyl Alcohol/Poly(γ-Glutamic Acid) Blended Electrospun Nanofiber Mats with Potential Applications in Diabetic Foot Treatment. Polymers (Basel) 2021; 13:polym13172943. [PMID: 34502982 PMCID: PMC8434031 DOI: 10.3390/polym13172943] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Revised: 08/16/2021] [Accepted: 08/16/2021] [Indexed: 12/30/2022] Open
Abstract
This work biosynthesized poly(γ-glutamic acid) (γ-PGA) produced by Bacillus licheniformis ATCC-9945a. This material was utilized to prepare electrospun nanofibers with solutions of 10% polyvinyl alcohol (PVA) (w/v) mixed with γ-PGA at 5 and 10% w/v, intended as a wound dressing for diabetic foot treatment. These solutions were loaded with chlorogenic acid (CGA), an active hypoglycemic agent. Morphological analysis showed a decrease in size of the fibers with the combination of PVA/γ-PGA compared to pure PVA nanofibers, which was attributed to the hydrogen bonding interactions between the glutaraldehyde vapors, γ-PGA, and PVA that permitted nanofiber cross-linking and allowed CGA release. The in vitro release analysis showed that the PVA membranes reached 28% delivery after the first 24 h. Notably, the nanofiber mat with PVA blended with 5% γ-PGA reached 57% delivery, and the PVA nanofiber with 10% γ-PGA reached 66% release after the same amount of time. The rate constant for the release kinetics showed that PVA with 5% γ-PGA had a higher value than that of the other samples, reaching saturation first.
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Balogun-Agbaje OA, Odeniyi OA, Odeniyi MA. Drug delivery applications of poly-γ-glutamic acid. FUTURE JOURNAL OF PHARMACEUTICAL SCIENCES 2021. [DOI: 10.1186/s43094-021-00280-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Abstract
Background
Poly-γ-glutamic acid (γ-PGA) is a biopolymer of microbial origin, consisting of repeating units of l-glutamic acid and/or D-glutamic acid. The biopolymer has found use in the fields of agriculture, food, wastewater, and medicine, owing to its non-toxic, biodegradable, and biocompatible properties. Due to its biodegradability, γ-PGA is being tipped to dislodge synthetic plastics in drug delivery application. High cost of production, relative to plastics, is however a clog in the wheel of achieving this.
Main body of abstract
This review looked at the production, nanoparticles fabrication, and drug delivery application of γ-PGA. γ-PGA production optimization by modifying the fermentation medium to tailor towards the production of desirable polymer at reduced cost and techniques for the formulation of γ-PGA nanoparticle as well as its characterization were discussed. This review also evaluated the application of γ-PGA and its nanoparticles in the delivery of drugs to action site. Characterization of γ-PGA and its nanoparticles is a crucial step towards determining the applicability of the biopolymer. γ-PGA has been used in the delivery of active agents to action sites.
Conclusion
This review highlights some of the efforts that have been made in the appraisal of γ-PGA and its nanoparticles for drug delivery. γ-PGA is a candidate for future extensive use in drug delivery.
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Le TMD, Nguyen VVL, Trinh TA, Pham NS, Lee DS, Huynh DP. Sulfonamide functionalized amino acid‐based
pH
‐ and temperature‐sensitive biodegradable injectable hydrogels: Synthesis, physicochemical characterization and in vivo degradation kinetics. J Appl Polym Sci 2021. [DOI: 10.1002/app.50488] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Thai Minh Duy Le
- School of Chemical Engineering and Theranostic Macromolecules Research Center Sungkyunkwan University Suwon South Korea
| | - Vu Viet Linh Nguyen
- Ho Chi Minh City University of Technology and Education Ho Chi Minh City Vietnam
| | - Thuy An Trinh
- Faculty of Materials Technology Ho Chi Minh University of Technology (HCMUT) Ho Chi Minh City Vietnam
- Vietnam National University Ho Chi Minh City Linh Trung Ward, Thu Duc District Ho Chi Minh City Vietnam
| | - Ngoc Sinh Pham
- National Key Laboratory of Polymer and Composite Materials Ho Chi Minh University of Technology, Vietnam National University Ho Chi Minh City Vietnam
| | - Doo Sung Lee
- School of Chemical Engineering and Theranostic Macromolecules Research Center Sungkyunkwan University Suwon South Korea
| | - Dai Phu Huynh
- Faculty of Materials Technology Ho Chi Minh University of Technology (HCMUT) Ho Chi Minh City Vietnam
- Vietnam National University Ho Chi Minh City Linh Trung Ward, Thu Duc District Ho Chi Minh City Vietnam
- Research Center for Polymeric Materials Ho Chi Minh University of Technology, Vietnam National University Ho Chi Minh City Vietnam
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Tanaka T, Sano K, Munekane M, Yamasaki T, Sasaki H, Mukai T. A Radiolabeled Self-assembled Nanoparticle Probe for Diagnosis of Lung-Metastatic Melanoma. Biol Pharm Bull 2021; 44:410-415. [PMID: 33642549 DOI: 10.1248/bpb.b20-00810] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Melanoma is a highly malignant skin cancer that frequently metastasizes to the lung, bone, and brain at an early phase. Therefore, noninvasive detection of metastasized melanoma could be beneficial to determine suitable therapeutic strategies. We previously reported a biocompatible ternary anionic complex composed of plasmid DNA (pDNA), polyethyleneimine (PEI), and γ-polyglutamic acid (γ-PGA) based on an electrostatic interaction, which was highly taken up by melanoma cells (B16-F10), even if it was negatively charged. Here, we developed a radiolabeled γ-PGA complex by using indium-111 (111In)-labeled polyamidoamine dendrimer (4th generation; G4) instead of pDNA and iodine-125 (125I)-labeled PEI instead of native PEI, and evaluated its effectiveness as a melanoma-targeted imaging probe. This ternary complex was synthesized at a theoretical charge ratio; carboxyl groups of 111In-diethylenetriaminepentaacetic acid (DTPA)-G4 : amino groups of 125I-PEI : carboxyl groups of γ-PGA was 1 : 8 : 16, and the size and zeta potential were approximately 29 nm and -33 mV, respectively. This complex was taken up by B16-F10 cells with time. Furthermore, a biodistribution study, using normal mice, demonstrated its accumulation in the liver, spleen, and lung, where macrophage cells are abundant. Almost the same level of radioactivity derived from both 111In and 125I was observed in these organs at an early phase after probe injection. Compared with the normal mice, significantly higher lung-to-blood ratios of radioactivity were observed in the B16-F10-lung metastatic cancer model. In conclusion, the radiolabeled γ-PGA complex would hold potentialities for nuclear medical imaging of lung metastatic melanoma.
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Affiliation(s)
- Toshie Tanaka
- Laboratory of Biophysical Chemistry, Kobe Pharmaceutical University
| | - Kohei Sano
- Laboratory of Biophysical Chemistry, Kobe Pharmaceutical University
| | | | | | - Hitoshi Sasaki
- Department of Hospital Pharmacy, Nagasaki University Hospital
| | - Takahiro Mukai
- Laboratory of Biophysical Chemistry, Kobe Pharmaceutical University
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Zhang Y, Teng Z, Ni Q, Tao J, Cao X, Wen Y, Wu L, Fang C, Wan B, Zhang X, Lu G. Orderly Curled Silica Nanosheets with a Small Size and Macromolecular Loading Pores: Synthesis and Delivery of Macromolecules To Eradicate Drug-Resistant Cancer. ACS APPLIED MATERIALS & INTERFACES 2020; 12:57810-57820. [PMID: 33326227 DOI: 10.1021/acsami.0c19497] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Hierarchically organized silica nanomaterials have shown great promise for nanomedicine. However, the synthesis of silica nanomaterials with a small size and macromolecular loading pore is still a big challenge. Herein, orderly curled silica nanosheets (OCSNs) with a ∼42 nm diameter and orderly connected large channels (∼13.4 nm) were successfully prepared for the first time. The key to the formation of the unique structure (OCSNs) is using an oil/water reaction system with high concentrations of the surfactant and alkali. The prepared OCSNs exhibit a long blood circulation halftime (0.97 h) and low internalization in the reticuloendothelial system. Notably, the large superficial channels can concurrently house large guest molecules (siRNA) and chemotherapeutic drugs. Furthermore, drug-loaded OCSNs modified with polyglutamic acids can greatly increase the accumulation of incorporated siRNA and doxorubicin in solid tumors and restrain the growth of drug-resistant orthotopic breast cancer by inducing cell apoptosis. Overall, we report the preparation of hierarchically OCSNs; their small size and macromolecular loading pores are very promising for the delivery of large guest molecules and chemotherapeutic drugs for cancer therapy.
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Affiliation(s)
- Yunlei Zhang
- Department of Respiratory and Critical Care Medicine, The Affiliated Jiangning Hospital of Nanjing Medical University, Nanjing 211100, P. R. China
- Department of Medical Imaging, Jinling Hospital, Medical School of Nanjing University, Nanjing 210002, P.R. China
- Central Laboratory, Translational Medicine Research Center, The Affiliated Jiangning Hospital of Nanjing Medical University, Nanjing 211100, P. R. China
| | - Zhaogang Teng
- Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Centre for Advanced Materials (SICAM), Nanjing University of Posts and Telecommunications, 9 Wenyuan Road, Nanjing 210023, P.R. China
| | - Qianqian Ni
- Department of Medical Imaging, Jinling Hospital, Medical School of Nanjing University, Nanjing 210002, P.R. China
| | - Jun Tao
- Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Centre for Advanced Materials (SICAM), Nanjing University of Posts and Telecommunications, 9 Wenyuan Road, Nanjing 210023, P.R. China
| | - Xiongfeng Cao
- Department of Medical Imaging, Jinling Hospital, Medical School of Nanjing University, Nanjing 210002, P.R. China
| | - Yuting Wen
- Department of Respiratory and Critical Care Medicine, The Affiliated Jiangning Hospital of Nanjing Medical University, Nanjing 211100, P. R. China
| | - Liangquan Wu
- Department of Respiratory and Critical Care Medicine, The Affiliated Jiangning Hospital of Nanjing Medical University, Nanjing 211100, P. R. China
| | - Chao Fang
- Central Laboratory, Translational Medicine Research Center, The Affiliated Jiangning Hospital of Nanjing Medical University, Nanjing 211100, P. R. China
| | - Bing Wan
- Department of Respiratory and Critical Care Medicine, The Affiliated Jiangning Hospital of Nanjing Medical University, Nanjing 211100, P. R. China
| | - Xiuwei Zhang
- Department of Respiratory and Critical Care Medicine, The Affiliated Jiangning Hospital of Nanjing Medical University, Nanjing 211100, P. R. China
| | - Guangming Lu
- Department of Medical Imaging, Jinling Hospital, Medical School of Nanjing University, Nanjing 210002, P.R. China
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, P.R. China
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Qi N, Zhang Y, Tang X, Li A. Cationic/Anionic Polyelectrolyte (PLL/PGA) Coated Vesicular Phospholipid Gels (VPGs) Loaded with Cytarabine for Sustained Release and Anti-glioma Effects. DRUG DESIGN DEVELOPMENT AND THERAPY 2020; 14:1825-1836. [PMID: 32494124 PMCID: PMC7229786 DOI: 10.2147/dddt.s248362] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Accepted: 04/09/2020] [Indexed: 11/23/2022]
Abstract
Background Cationic and anionic polymer-modified nanoparticles offer promising properties for the drug and gene delivery. Our study uses cationic/anionic polyelectrolyte coated vesicular phospholipid gels (VPGs) loaded with cytarabine (Ara-C) that enhance in vitro and in vivo anti-glioma effects. Methods Sodium cholesteryl sulfate (SCS) or octadecylamine (ODA) incorporated in a phospholipids phase were used to prepare charged VPGs, and cationic ε-polylysine (PLL) coated VPGs (PLL-SCS VPGs) and anionic γ-polyglutamic acid (PGA) coated VPGs (PGA-ODA VPGs) were prepared via electrostatic interactions, respectively. The morphology, particle size, zeta potential, rheology properties, and in vitro release were then characterized. The in vitro cytotoxicity and cellular uptake were evaluated on U87-MG glioma cells. The in vivo antitumor effects were studied on BALB/c nude mice bearing a right flank U87-MG glioma model. Results The TEM images and physicochemical properties of cationic/anionic polyelectrolyte coated VPGs exhibited that polymers covered on the vesicular surface. The results of rheologic property analysis showed that cationic/anionic polyelectrolyte coated VPGs enhanced the viscosity of uncoated VPGs. The in vitro release experiments revealed that cationic/anionic polyelectrolyte coated VPGs kept Ara-C sustained release up to 18 days. Specially, compared with PLL-SCS VPGs, PGA-ODA VPGs demonstrated higher in vitro cytotoxicity and cellular uptake efficiency in U87-MG glioma cells, and enhanced in vivo antitumor effects when subcutaneously injected around the tumor. No severe toxicity appeared in the right flank U87-MG glioma model of BALB/c nude mice. Conclusion Anionic γ-PGA coated VPGs were superior to cationic PLL coated VPGs in terms of improving the anti-glioma effect for local delivery.
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Affiliation(s)
- Na Qi
- Integrated Hospital of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510315, People's Republic of China.,Department of Pharmacy, Guilin Medical University, Guilin 541004, People's Republic of China
| | - Yu Zhang
- Department of Pharmaceutics, Shenyang Pharmaceutical University, Shenyang 110016, People's Republic of China
| | - Xing Tang
- Department of Pharmaceutics, Shenyang Pharmaceutical University, Shenyang 110016, People's Republic of China
| | - Aimin Li
- Integrated Hospital of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510315, People's Republic of China
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Juriga D, Sipos E, Hegedűs O, Varga G, Zrínyi M, Nagy KS, Jedlovszky-Hajdú A. Fully amino acid-based hydrogel as potential scaffold for cell culturing and drug delivery. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2019; 10:2579-2593. [PMID: 31921537 PMCID: PMC6941446 DOI: 10.3762/bjnano.10.249] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Accepted: 12/10/2019] [Indexed: 06/10/2023]
Abstract
Polymer hydrogels are ideal scaffolds for both tissue engineering and drug delivery. A great advantage of poly(amino acid)-based hydrogels is their high similarity to natural proteins. However, their expensive and complicated synthesis often limits their application. The use of poly(aspartic acid) (PASP) seems an appropriate solution for this problem due to the relatively cheap and simple synthesis of PASP. Using amino acids not only as building blocks in the polymer backbone but also as cross-linkers can improve the biocompatibility and the biodegradability of the hydrogel. In this paper, PASP cross-linked with cystamine (CYS) and lysine-methylester (LYS) was introduced as fully amino acid-based polymer hydrogel. Gels were synthesized employing six different ratios of CYS and LYS. The pH dependent swelling degree and the concentration of the elastically active chain were determined. After reduction of the disulfide bonds of CYS, the presence of thiol side groups was also detected. To determine the concentration of the reactive cross-linkers in the hydrogels, a new method based on the examination of the swelling behavior was established. Using metoprolol as a model drug, cell proliferation and drug release kinetics were studied at different LYS contents and in the presence of thiol groups. The optimal ratio of cross-linkers for the proliferation of periodontal ligament cells was found to be 60-80% LYS and 20-40% CYS. The reductive conditions resulted in an increased drug release due to the cleavage of disulfide bridges in the hydrogels. Consequently, these hydrogels provide new possibilities in the fields of both tissue engineering and controlled drug delivery.
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Affiliation(s)
- Dávid Juriga
- Laboratory of Nanochemistry, Department of Biophysics and Radiation Biology, Semmelweis University, Nagyvarad square 4, Budapest, Hungary
| | - Evelin Sipos
- Laboratory of Nanochemistry, Department of Biophysics and Radiation Biology, Semmelweis University, Nagyvarad square 4, Budapest, Hungary
| | - Orsolya Hegedűs
- Department of Oral Biology, Semmelweis University, Nagyvarad square 4, Budapest, Hungary
| | - Gábor Varga
- Department of Oral Biology, Semmelweis University, Nagyvarad square 4, Budapest, Hungary
| | - Miklós Zrínyi
- Laboratory of Nanochemistry, Department of Biophysics and Radiation Biology, Semmelweis University, Nagyvarad square 4, Budapest, Hungary
| | - Krisztina S Nagy
- Laboratory of Nanochemistry, Department of Biophysics and Radiation Biology, Semmelweis University, Nagyvarad square 4, Budapest, Hungary
- Department of Oral Biology, Semmelweis University, Nagyvarad square 4, Budapest, Hungary
| | - Angéla Jedlovszky-Hajdú
- Laboratory of Nanochemistry, Department of Biophysics and Radiation Biology, Semmelweis University, Nagyvarad square 4, Budapest, Hungary
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13
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Liu B, Che C, Liu J, Si M, Gong Z, Li Y, Zhang J, Yang G. Fabrication and Antitumor Mechanism of a Nanoparticle Drug Delivery System: Graphene Oxide/Chitosan Oligosaccharide/
γ
‐Polyglutamic Acid Composites for Anticancer Drug Delivery. ChemistrySelect 2019. [DOI: 10.1002/slct.201903145] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Baoqing Liu
- College of Life SciencesQufu Normal University Qufu 273165, Shandong China
| | - Chengchuan Che
- College of Life SciencesQufu Normal University Qufu 273165, Shandong China
| | - Jinfeng Liu
- College of Life SciencesQufu Normal University Qufu 273165, Shandong China
| | - Meiru Si
- College of Life SciencesQufu Normal University Qufu 273165, Shandong China
| | - Zhijin Gong
- College of Life SciencesQufu Normal University Qufu 273165, Shandong China
| | - Yuan Li
- College of Life SciencesQufu Normal University Qufu 273165, Shandong China
| | - Junming Zhang
- College of Life SciencesQufu Normal University Qufu 273165, Shandong China
| | - Ge Yang
- College of Life SciencesQufu Normal University Qufu 273165, Shandong China
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14
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Bakan B, Kayhan CT, Koksal Karayildirim C, Dagdeviren M, Gulcemal S, Yildirim Y, Akgol S, Karabay Yavasoglu NU. Synthesis, characterization, toxicity and in vivo imaging of lysine graft polymeric nanoparticles. JOURNAL OF POLYMER RESEARCH 2019. [DOI: 10.1007/s10965-019-1901-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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15
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Zhu R, Gao X, Xiao Y, Yang N, Jin Y. Improved performance in γ-polyglutamic acid production by Bacillus subtilis LX on industrial scale by impeller retrofitting and its unstructured microbial growth kinetics model. Prep Biochem Biotechnol 2019; 49:307-314. [DOI: 10.1080/10826068.2018.1541810] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Ruiyan Zhu
- Applied Chemistry Key Lab of Hebei Province, Yanshan University, Qinhuangdao, China
| | - Xiaojia Gao
- Agricultural Biotechnology Key Lab of Hebei Province, Leading Bio-agriculture Co. Ltd, Qinhuangdao, China
| | - Yan Xiao
- Agricultural Biotechnology Key Lab of Hebei Province, Leading Bio-agriculture Co. Ltd, Qinhuangdao, China
| | - Na Yang
- Agricultural Biotechnology Key Lab of Hebei Province, Leading Bio-agriculture Co. Ltd, Qinhuangdao, China
| | - Yangzhuoyue Jin
- Applied Chemistry Key Lab of Hebei Province, Yanshan University, Qinhuangdao, China
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16
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Csikós Z, Fazekas E, Rózsa D, Borbély J, Kerekes K. Crosslinked poly-γ-glutamic acid based nanosystem for drug delivery. J Drug Deliv Sci Technol 2018. [DOI: 10.1016/j.jddst.2018.10.026] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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17
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Yu Z, Liu W, Huo P. Preparation, characterization, and antimicrobial activity of poly(γ-glutamic acid)/chitosan blends. Polym Bull (Berl) 2018. [DOI: 10.1007/s00289-018-2485-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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18
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Qi N, Tang B, Liu G, Liang X. Poly(γ-glutamic acid)-coated lipoplexes loaded with Doxorubicin for enhancing the antitumor activity against liver tumors. NANOSCALE RESEARCH LETTERS 2017; 12:361. [PMID: 28532126 PMCID: PMC5438329 DOI: 10.1186/s11671-017-2081-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/14/2017] [Accepted: 04/12/2017] [Indexed: 06/07/2023]
Abstract
The study was to develop poly-γ-glutamic acid (γ-PGA)-coated Doxorubicin (Dox) lipoplexes that enhance the antitumor activity against liver tumors. γ-PGA-coated lipoplexes were performed by electrostatistically attracting to the surface of cationic charge liposomes with anionic γ-PGA. With the increasing of γ-PGA concentration, the particle size of γ-PGA-coated Dox lipoplexes slightly increased, the zeta potential from positive shifted to negative, and the entrapment efficiency (EE) were no significant change. The release rate of γ-PGA-coated Dox lipoplexes slightly increased at acidic pH, the accelerated Dox release might be attributed to greater drug delivery to tumor cells, resulting in a higher antitumor activity. Especially, γ-PGA-coated Dox lipoplexes exhibited higher cellular uptake, significant in vitro cytotoxicity in HepG2 cells, and improved in vivo antitumor efficacy toward HepG2 hepatoma-xenografted nude models in comparison with Dox liposomes and free Dox solution. In addition, the analysis results via flow cytometry showed that γ-PGA-coated Dox lipoplexes induce S phase cell cycle arrest and significantly increased apoptosis rate of HepG2 cells. In conclusion, the presence of γ-PGA on the surface of Dox lipoplexes enhanced antitumor effects of liver tumors.
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Affiliation(s)
- Na Qi
- Department of Pharmacy, Guilin Medical University, Ring North 2rd Road No. 109, Guilin, 541004 People’s Republic of China
| | - Bo Tang
- Laboratory of Liver Injury and Repair Molecular Medicine, Guilin Medical University, Lequn Road No.15, Guilin, 541001 People’s Republic of China
| | - Guang Liu
- School of chemistry and pharmacy, Guangxi Normal University, Yucai Road No.15, Guilin, 541004 People’s Republic of China
| | - Xingsi Liang
- Laboratory of Liver Injury and Repair Molecular Medicine, Guilin Medical University, 15 Lequn Road, Guilin, 541001 People’s Republic of China
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Qiu Y, Sha Y, Zhang Y, Xu Z, Li S, Lei P, Xu Z, Feng X, Xu H. Development of Jerusalem artichoke resource for efficient one-step fermentation of poly-(γ-glutamic acid) using a novel strain Bacillus amyloliquefaciens NX-2S. BIORESOURCE TECHNOLOGY 2017; 239:197-203. [PMID: 28521229 DOI: 10.1016/j.biortech.2017.05.005] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2017] [Revised: 04/27/2017] [Accepted: 05/01/2017] [Indexed: 06/07/2023]
Abstract
This study aimed to develop non-food fermentation for the cost-effective production of poly-(γ-glutamic acid) (γ-PGA) using a novel strain of Bacillus amyloliquefaciens NX-2S. The new isolate assimilated inulin more efficiently than other carbohydrates from Jerusalem artichoke, without hydrolytic treatment. To investigate the effect of inulin on γ-PGA production, the transcript levels of γ-PGA synthetase genes (pgsB, pgsC, pgsA), regulatory genes (comA, degQ, degS), and the glutamic acid biosynthesis gene (glnA) were analyzed; inulin addition upregulated these key genes. Without exogenous glutamate, strain NX-2S could produce 6.85±0.22g/L of γ-PGA during fermentation. Exogenous glutamate greatly enhances the γ-PGA yield (39.4±0.38g/L) and productivity (0.43±0.05g/L/h) in batch fermentation. Our study revealed a potential method of non-food fermentation to produce high-value products.
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Affiliation(s)
- Yibin Qiu
- State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing 211816, China; College of Food Science and Light Industry, Nanjing Tech University, Nanjing 211816, China
| | - Yuanyuan Sha
- State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing 211816, China; College of Food Science and Light Industry, Nanjing Tech University, Nanjing 211816, China
| | - Yatao Zhang
- State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing 211816, China; College of Food Science and Light Industry, Nanjing Tech University, Nanjing 211816, China
| | - Zongqi Xu
- State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing 211816, China; College of Food Science and Light Industry, Nanjing Tech University, Nanjing 211816, China
| | - Sha Li
- State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing 211816, China; College of Food Science and Light Industry, Nanjing Tech University, Nanjing 211816, China
| | - Peng Lei
- State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing 211816, China; College of Food Science and Light Industry, Nanjing Tech University, Nanjing 211816, China
| | - Zheng Xu
- State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing 211816, China; College of Food Science and Light Industry, Nanjing Tech University, Nanjing 211816, China
| | - Xiaohai Feng
- State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing 211816, China; College of Food Science and Light Industry, Nanjing Tech University, Nanjing 211816, China
| | - Hong Xu
- State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing 211816, China; College of Food Science and Light Industry, Nanjing Tech University, Nanjing 211816, China.
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20
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Kulhari H, Telukutla SR, Pooja D, Shukla R, Sistla R, Bansal V, Adams DJ. Peptide grafted and self-assembled poly(γ-glutamic acid)-phenylalanine nanoparticles targeting camptothecin to glioma. Nanomedicine (Lond) 2017. [DOI: 10.2217/nnm-2017-0067] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Aim: To synthesize cRGDfK peptide conjugated poly(γ-glutamic acid)-phenylalanine nanoparticles to improve the therapeutic efficacy of camptothecin (CPT) against glioblastoma multiforme. Methods: Peptide-conjugated, drug-loaded nanoparticles (cRGDfK-conjugated camptothecin-loaded PGA–PA nanoparticles [RCPN]) were prepared and physico-chemically characterized using different techniques. Nanoparticles were evaluated for in vitro anticancer activity, cellular uptake, induction of apoptosis and wound healing cell migration against U87MG human glioblastoma cells. Results: RCPN, with a particle size of <100 nm and 65% CPT encapsulation efficiency, exhibited a dose- and time-dependent cytotoxicity to glioblastoma cells. Compared with native CPT or unconjugated nanoparticles, RCPN induced apoptosis, increased reactive oxygen species generation and inhibited U87MG cell migration. Conclusion: cRGDfK-mediated and amphiphilic copolymer-based nanomedicines represent a new approach for improved delivery of anticancer drugs to and treatment of glioblastoma multiforme.
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Affiliation(s)
- Hitesh Kulhari
- Ian Potter NanoBioSensing Facility, NanoBiotechnology Research Laboratory, School of Science, RMIT University, Melbourne, VIC 3001, Australia
- Health Innovations Research Institute, RMIT University, Melbourne, VIC 3083, Australia
- IICT-RMIT Research Centre, CSIR-Indian Institute of Chemical Technology, Hyderabad, Telangana 500607, India
- Medicinal Chemistry & Pharmacology Division, CSIR-Indian Institute of Chemical Technology, Hyderabad, Telangana 500607, India
| | - Srinivasa R Telukutla
- Ian Potter NanoBioSensing Facility, NanoBiotechnology Research Laboratory, School of Science, RMIT University, Melbourne, VIC 3001, Australia
- IICT-RMIT Research Centre, CSIR-Indian Institute of Chemical Technology, Hyderabad, Telangana 500607, India
- Medicinal Chemistry & Pharmacology Division, CSIR-Indian Institute of Chemical Technology, Hyderabad, Telangana 500607, India
| | - Deep Pooja
- Medicinal Chemistry & Pharmacology Division, CSIR-Indian Institute of Chemical Technology, Hyderabad, Telangana 500607, India
| | - Ravi Shukla
- Ian Potter NanoBioSensing Facility, NanoBiotechnology Research Laboratory, School of Science, RMIT University, Melbourne, VIC 3001, Australia
- Health Innovations Research Institute, RMIT University, Melbourne, VIC 3083, Australia
| | - Ramakrishna Sistla
- Medicinal Chemistry & Pharmacology Division, CSIR-Indian Institute of Chemical Technology, Hyderabad, Telangana 500607, India
| | - Vipul Bansal
- Ian Potter NanoBioSensing Facility, NanoBiotechnology Research Laboratory, School of Science, RMIT University, Melbourne, VIC 3001, Australia
- Health Innovations Research Institute, RMIT University, Melbourne, VIC 3083, Australia
| | - David J Adams
- Health Innovations Research Institute, RMIT University, Melbourne, VIC 3083, Australia
- Illawarra Health & Medical Research Institute (IHMRI), University of Wollongong, Wollongong, NSW 2522, Australia
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21
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Khalil IR, Burns ATH, Radecka I, Kowalczuk M, Khalaf T, Adamus G, Johnston B, Khechara MP. Bacterial-Derived Polymer Poly-y-Glutamic Acid (y-PGA)-Based Micro/Nanoparticles as a Delivery System for Antimicrobials and Other Biomedical Applications. Int J Mol Sci 2017; 18:ijms18020313. [PMID: 28157175 PMCID: PMC5343849 DOI: 10.3390/ijms18020313] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2016] [Accepted: 01/18/2017] [Indexed: 12/12/2022] Open
Abstract
In the past decade, poly-γ-glutamic acid (γ-PGA)-based micro/nanoparticles have garnered remarkable attention as antimicrobial agents and for drug delivery, owing to their controlled and sustained-release properties, low toxicity, as well as biocompatibility with tissue and cells. γ-PGA is a naturally occurring biopolymer produced by several gram-positive bacteria that, due to its biodegradable, non-toxic and non-immunogenic properties, has been used successfully in the medical, food and wastewater industries. Moreover, its carboxylic group on the side chains can offer an attachment point to conjugate antimicrobial and various therapeutic agents, or to chemically modify the solubility of the biopolymer. The unique characteristics of γ-PGA have a promising future for medical and pharmaceutical applications. In the present review, the structure, properties and micro/nanoparticle preparation methods of γ-PGA and its derivatives are covered. Also, we have highlighted the impact of micro/nanoencapsulation or immobilisation of antimicrobial agents and various disease-related drugs on biodegradable γ-PGA micro/nanoparticles.
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Affiliation(s)
- Ibrahim R Khalil
- Faculty of Science and Engineering, University of Wolverhampton, Wulfruna Street, Wolverhampton WV1 1LY, UK.
- Polish Academy of Sciences, Centre of Polymer and Carbon Materials, Zabrze 41-819, Poland.
| | - Alan T H Burns
- Faculty of Science and Engineering, University of Wolverhampton, Wulfruna Street, Wolverhampton WV1 1LY, UK.
| | - Iza Radecka
- Faculty of Science and Engineering, University of Wolverhampton, Wulfruna Street, Wolverhampton WV1 1LY, UK.
| | - Marek Kowalczuk
- Faculty of Science and Engineering, University of Wolverhampton, Wulfruna Street, Wolverhampton WV1 1LY, UK.
- Polish Academy of Sciences, Centre of Polymer and Carbon Materials, Zabrze 41-819, Poland.
| | - Tamara Khalaf
- Faculty of Science and Engineering, University of Wolverhampton, Wulfruna Street, Wolverhampton WV1 1LY, UK.
| | - Grazyna Adamus
- Polish Academy of Sciences, Centre of Polymer and Carbon Materials, Zabrze 41-819, Poland.
| | - Brian Johnston
- Faculty of Science and Engineering, University of Wolverhampton, Wulfruna Street, Wolverhampton WV1 1LY, UK.
| | - Martin P Khechara
- Faculty of Science and Engineering, University of Wolverhampton, Wulfruna Street, Wolverhampton WV1 1LY, UK.
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γ-Polyglutamic acid/chitosan nanoparticles for the plant growth regulator gibberellic acid: Characterization and evaluation of biological activity. Carbohydr Polym 2017; 157:1862-1873. [DOI: 10.1016/j.carbpol.2016.11.073] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2016] [Revised: 10/27/2016] [Accepted: 11/19/2016] [Indexed: 11/23/2022]
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23
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Hu P, Zhang Z, Shen F, Yu X, Li M, Ni H, Li L. Poly-γ-glutamic acid coupled Pseudomonas putida cells surface-displaying metallothioneins: composited copper(ii) biosorption and inducible flocculation in aqueous solution. RSC Adv 2017. [DOI: 10.1039/c7ra01546a] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Schematic illustration of the preparation, biosorption, and induced flocculation of the biocomposite MB546-PGA.
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Affiliation(s)
- Penggao Hu
- State Key Laboratory of Agricultural Microbiology
- College of Life Science and Technology
- Huazhong Agricultural University
- Wuhan 430070
- China
| | - Zhongna Zhang
- State Key Laboratory of Agricultural Microbiology
- College of Life Science and Technology
- Huazhong Agricultural University
- Wuhan 430070
- China
| | - Fei Shen
- State Key Laboratory of Agricultural Microbiology
- College of Life Science and Technology
- Huazhong Agricultural University
- Wuhan 430070
- China
| | - Xun Yu
- State Key Laboratory of Agricultural Microbiology
- College of Life Science and Technology
- Huazhong Agricultural University
- Wuhan 430070
- China
| | - Mingshun Li
- State Key Laboratory of Agricultural Microbiology
- College of Life Science and Technology
- Huazhong Agricultural University
- Wuhan 430070
- China
| | - Hong Ni
- College of Life Sciences
- Hubei University
- Wuhan 430062
- China
| | - Lin Li
- State Key Laboratory of Agricultural Microbiology
- College of Life Science and Technology
- Huazhong Agricultural University
- Wuhan 430070
- China
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Spatiotemporal Programing for the On-Demand Release of Bupivacaine Based on an Injectable Composite Hydrogel. J Pharm Sci 2016; 105:3634-3644. [DOI: 10.1016/j.xphs.2016.09.020] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2016] [Revised: 09/13/2016] [Accepted: 09/22/2016] [Indexed: 11/23/2022]
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25
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Modification of microbial polymers by thiol-ene click reaction: Nanoparticle formation and drug encapsulation. REACT FUNCT POLYM 2016. [DOI: 10.1016/j.reactfunctpolym.2016.07.020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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26
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Tukappa A, Ultimo A, de la Torre C, Pardo T, Sancenón F, Martínez-Máñez R. Polyglutamic Acid-Gated Mesoporous Silica Nanoparticles for Enzyme-Controlled Drug Delivery. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:8507-15. [PMID: 27468799 DOI: 10.1021/acs.langmuir.6b01715] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Mesoporous silica nanoparticles (MSNs) are highly attractive as supports in the design of controlled delivery systems that can act as containers for the encapsulation of therapeutic agents, overcoming common issues such as poor water solubility and poor stability of some drugs and also enhancing their bioavailability. In this context, we describe herein the development of polyglutamic acid (PGA)-capped MSNs that can selectively deliver rhodamine B and doxorubicin. PGA-capped MSNs remain closed in an aqueous environment, yet they are able to deliver the cargo in the presence of pronase because of the hydrolysis of the peptide bonds in PGA. The prepared solids released less than 20% of the cargo in 1 day in water, whereas they were able to reach 90% of the maximum release of the entrapped guest in ca. 5 h in the presence of pronase. Studies of the PGA-capped nanoparticles with SK-BR-3 breast cancer cells were also undertaken. Rhodamine-loaded nanoparticles were not toxic, whereas doxorubicin-loaded nanoparticles were able to efficiently kill more than 90% of the cancer cells at a concentration of 100 μg/mL.
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Affiliation(s)
- Asha Tukappa
- Instituto Interuniversitario de Investigación de Reconocimiento Molecular y Desarrollo Tecnológico (IDM), Universitat Politècnica de València, Universitat de València , Camino de Vera s/n, 46022 Valencia, Spain
- Department of Biotechnology, Gulbarga University , Gulbarga 585106, Karnataka, India
| | - Amelia Ultimo
- Instituto Interuniversitario de Investigación de Reconocimiento Molecular y Desarrollo Tecnológico (IDM), Universitat Politècnica de València, Universitat de València , Camino de Vera s/n, 46022 Valencia, Spain
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN)
| | - Cristina de la Torre
- Instituto Interuniversitario de Investigación de Reconocimiento Molecular y Desarrollo Tecnológico (IDM), Universitat Politècnica de València, Universitat de València , Camino de Vera s/n, 46022 Valencia, Spain
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN)
| | - Teresa Pardo
- Instituto Interuniversitario de Investigación de Reconocimiento Molecular y Desarrollo Tecnológico (IDM), Universitat Politècnica de València, Universitat de València , Camino de Vera s/n, 46022 Valencia, Spain
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN)
| | - Félix Sancenón
- Instituto Interuniversitario de Investigación de Reconocimiento Molecular y Desarrollo Tecnológico (IDM), Universitat Politècnica de València, Universitat de València , Camino de Vera s/n, 46022 Valencia, Spain
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN)
| | - Ramón Martínez-Máñez
- Instituto Interuniversitario de Investigación de Reconocimiento Molecular y Desarrollo Tecnológico (IDM), Universitat Politècnica de València, Universitat de València , Camino de Vera s/n, 46022 Valencia, Spain
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN)
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27
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Xu T, Peng F, Zhang T, Chi B, Xu H, Mao C, Feng S. Poly(γ-glutamic acid), coagulation? Anticoagulation? JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2016; 27:1599-610. [DOI: 10.1080/09205063.2016.1221700] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Tingting Xu
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Food Science and Light Industry, Nanjing Tech University, Nanjing, China
- Jiangsu Key Laboratory of Biofunctional Materials, School of Chemistry and Materials Science, National and Local Joint Engineering Research Center of Biomedical Functional Materials, Nanjing Normal University, Nanjing, China
| | - Fang Peng
- Jiangsu Key Laboratory of Biofunctional Materials, School of Chemistry and Materials Science, National and Local Joint Engineering Research Center of Biomedical Functional Materials, Nanjing Normal University, Nanjing, China
| | - Tao Zhang
- Jiangsu Key Laboratory of Biofunctional Materials, School of Chemistry and Materials Science, National and Local Joint Engineering Research Center of Biomedical Functional Materials, Nanjing Normal University, Nanjing, China
| | - Bo Chi
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Food Science and Light Industry, Nanjing Tech University, Nanjing, China
| | - Hong Xu
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Food Science and Light Industry, Nanjing Tech University, Nanjing, China
| | - Chun Mao
- Jiangsu Key Laboratory of Biofunctional Materials, School of Chemistry and Materials Science, National and Local Joint Engineering Research Center of Biomedical Functional Materials, Nanjing Normal University, Nanjing, China
| | - Shuaihui Feng
- Jiangsu Key Laboratory of Biofunctional Materials, School of Chemistry and Materials Science, National and Local Joint Engineering Research Center of Biomedical Functional Materials, Nanjing Normal University, Nanjing, China
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Kamaly N, Yameen B, Wu J, Farokhzad OC. Degradable Controlled-Release Polymers and Polymeric Nanoparticles: Mechanisms of Controlling Drug Release. Chem Rev 2016; 116:2602-63. [PMID: 26854975 PMCID: PMC5509216 DOI: 10.1021/acs.chemrev.5b00346] [Citation(s) in RCA: 1534] [Impact Index Per Article: 191.8] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Nazila Kamaly
- Laboratory of Nanomedicine and Biomaterials, Department of Anesthesiology, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts 02115, United States
| | - Basit Yameen
- Laboratory of Nanomedicine and Biomaterials, Department of Anesthesiology, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts 02115, United States
| | - Jun Wu
- Laboratory of Nanomedicine and Biomaterials, Department of Anesthesiology, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts 02115, United States
| | - Omid C. Farokhzad
- Laboratory of Nanomedicine and Biomaterials, Department of Anesthesiology, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts 02115, United States
- King Abdulaziz University, Jeddah 21589, Saudi Arabia
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Novel applications of ubiquinone biopolymer nanocarriers for preventive and regenerative therapeutics: The Saccharomyces cerevisiae paradigm. Int J Pharm 2015; 478:416-425. [DOI: 10.1016/j.ijpharm.2014.11.034] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2014] [Revised: 11/11/2014] [Accepted: 11/13/2014] [Indexed: 01/30/2023]
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Lanz-Landázuri A, Martínez de Ilarduya A, García-Alvarez M, Muñoz-Guerra S. Poly(β,L-malic acid)/Doxorubicin ionic complex: A pH-dependent delivery system. REACT FUNCT POLYM 2014. [DOI: 10.1016/j.reactfunctpolym.2014.04.005] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Lanz-Landázuri A, Portilla-Arias J, Martínez de Ilarduya A, García-Alvarez M, Holler E, Ljubimova J, Muñoz-Guerra S. Nanoparticles of esterified polymalic acid for controlled anticancer drug release. Macromol Biosci 2014; 14:1325-36. [PMID: 24902676 DOI: 10.1002/mabi.201400124] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2014] [Revised: 05/09/2014] [Indexed: 11/12/2022]
Abstract
Esterification of microbial poly(malic acid) is performed with either ethanol or 1-butanol to obtain polymalate conjugates capable to form nanoparticles (100-350 nm). Degradation under physiological conditions takes place with release of malic acid and the corresponding alcohol as unique degradation products. The anticancer drugs Temozolomide and Doxorubicin are encapsulated in nanoparticles with efficiency of 17 and 37%, respectively. In vitro drug release assays show that Temozolomide is almost completely discharged in a few hours whereas Doxorubicin is steadily released along several days. Drug-loaded nano-particles show remarkable effectiveness against cancer cells. Partially ethylated poly(malic acid) nano-particles are those showing the highest cellular uptake.
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Affiliation(s)
- Alberto Lanz-Landázuri
- Departament d'Enginyeria Química, Universitat Politècnica de Catalunya, ETSEIB, Diagonal 647, 08028, Barcelona, Spain
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Tolentino A, Alla A, Martínez de Ilarduya A, Muñoz-Guerra S. Complexes of polyglutamic acid and long-chain alkanoylcholines: Nanoparticle formation and drug release. Int J Biol Macromol 2014; 66:346-53. [DOI: 10.1016/j.ijbiomac.2014.02.043] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2013] [Revised: 02/17/2014] [Accepted: 02/19/2014] [Indexed: 10/25/2022]
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da Silva SB, Cantarelli VV, Ayub MAZ. Production and optimization of poly-γ-glutamic acid by Bacillus subtilis BL53 isolated from the Amazonian environment. Bioprocess Biosyst Eng 2013; 37:469-79. [DOI: 10.1007/s00449-013-1016-1] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2013] [Accepted: 07/08/2013] [Indexed: 12/01/2022]
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Uversky VN. The alphabet of intrinsic disorder: II. Various roles of glutamic acid in ordered and intrinsically disordered proteins. INTRINSICALLY DISORDERED PROTEINS 2013; 1:e24684. [PMID: 28516010 PMCID: PMC5424795 DOI: 10.4161/idp.24684] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/21/2013] [Revised: 03/27/2013] [Accepted: 04/12/2013] [Indexed: 11/19/2022]
Abstract
The ability of a protein to fold into unique functional state or to stay intrinsically disordered is encoded in its amino acid sequence. Both ordered and intrinsically disordered proteins (IDPs) are natural polypeptides that use the same arsenal of 20 proteinogenic amino acid residues as their major building blocks. The exceptional structural plasticity of IDPs, their capability to exist as heterogeneous structural ensembles and their wide array of important disorder-based biological functions that complements functional repertoire of ordered proteins are all rooted within the peculiar differential usage of these building blocks by ordered proteins and IDPs. In fact, some residues (so-called disorder-promoting residues) are noticeably more common in IDPs than in sequences of ordered proteins, which, in their turn, are enriched in several order-promoting residues. Furthermore, residues can be arranged according to their “disorder promoting potencies,” which are evaluated based on the relative abundances of various amino acids in ordered and disordered proteins. This review continues a series of publications on the roles of different amino acids in defining the phenomenon of protein intrinsic disorder and concerns glutamic acid, which is the second most disorder-promoting residue.
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Affiliation(s)
- Vladimir N Uversky
- Department of Molecular Medicine and USF Health Byrd Alzheimer's Research Institute; College of Medicine; University of South Florida; Tampa, FL USA.,Institute for Biological Instrumentation; Russian Academy of Sciences; Moscow, Russia
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36
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Hudson D, Margaritis A. Biopolymer nanoparticle production for controlled release of biopharmaceuticals. Crit Rev Biotechnol 2013; 34:161-79. [DOI: 10.3109/07388551.2012.743503] [Citation(s) in RCA: 69] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Tan J, Wang Y, Yip X, Glynn F, Shepherd RK, Caruso F. Nanoporous peptide particles for encapsulating and releasing neurotrophic factors in an animal model of neurodegeneration. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2012; 24:3362-6. [PMID: 22610659 PMCID: PMC3543853 DOI: 10.1002/adma.201200634] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2012] [Revised: 04/13/2012] [Indexed: 05/29/2023]
Abstract
Neurotrophin-BDNF can be effectively encapsulated in nanoporous poly(L-glutamic acid) particles prepared via mesoporous silica templating. The loaded BDNF can be released in a sustained manner with retained biological activity. Animal experiments demonstrate the released BDNF can efficiently rescue the auditory neurons (as indicated by the arrows) in the cochlea of guinea pigs with sensorineural hearing loss.
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Affiliation(s)
- Justin Tan
- Bionics Institute, East Melbourne, Victoria 3002 (Australia). Department of Otolaryngology, The University of Melbourne, East Melbourne, Victoria 3002 (Australia)
| | - Yajun Wang
- Department of Chemical and Biomolecular Engineering, The University of Melbourne Parkville, Victoria 3010 (Australia)
| | - Xiaopei Yip
- Bionics Institute, East Melbourne, Victoria 3002 (Australia)
| | - Fergal Glynn
- Bionics Institute, East Melbourne, Victoria 3002 (Australia)
| | - Robert K. Shepherd
- Bionics Institute, East Melbourne, Victoria 3002 (Australia). Department of Otolaryngology, The University of Melbourne, East Melbourne, Victoria 3002 (Australia)
| | - Frank Caruso
- Department of Chemical and Biomolecular Engineering, The University of Melbourne Parkville, Victoria 3010 (Australia)
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Zhang H, Zhu J, Zhu X, Cai J, Zhang A, Hong Y, Huang J, Huang L, Xu Z. High-level exogenous glutamic acid-independent production of poly-(γ-glutamic acid) with organic acid addition in a new isolated Bacillus subtilis C10. BIORESOURCE TECHNOLOGY 2012; 116:241-6. [PMID: 22522018 DOI: 10.1016/j.biortech.2011.11.085] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2011] [Revised: 11/23/2011] [Accepted: 11/24/2011] [Indexed: 05/08/2023]
Abstract
A new exogenous glutamic acid-independent γ-PGA producing strain was isolated and characterized as Bacillus subtilis C10. The factors influencing the endogenous glutamic acid supply and the biosynthesis of γ-PGA in this strain were investigated. The results indicated that citric acid and oxalic acid showed the significant capability to support the overproduction of γ-PGA. This stimulated increase of γ-PGA biosynthesis by citric acid or oxalic acid was further proved in the 10 L fermentor. To understand the possible mechanism contributing to the improved γ-PGA production, the activities of four key intracellular enzymes were measured, and the possible carbon fluxes were proposed. The result indicated that the enhanced level of pyruvate dehydrogenase (PDH) activity caused by oxalic acid was important for glutamic acid synthesized de novo from glucose. Moreover, isocitrate dehydrogenase (ICDH) and glutamate dehydrogenase (GDH) were the positive regulators of glutamic acid biosynthesis, while 2-oxoglutarate dehydrogenase complex (ODHC) was the negative one.
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Affiliation(s)
- Huili Zhang
- Department of Chemical and Biological Engineering, Institute of Biological Engineering, Zhejiang University, Hangzhou 310027, PR China
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Il’ina AV, Zubareva AA, Kurek DV, Levov AN, Varlamov VP. Nanoparticles based on succinylchitosan with doxorubicin: Preparation and properties. ACTA ACUST UNITED AC 2012. [DOI: 10.1134/s1995078012010107] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Babiuch K, Gottschaldt M, Werz O, Schubert US. Particulate transepithelial drug carriers: barriers and functional polymers. RSC Adv 2012. [DOI: 10.1039/c2ra20726e] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
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Sharma A, Madhunapantula SV, Robertson GP. Toxicological considerations when creating nanoparticle-based drugs and drug delivery systems. Expert Opin Drug Metab Toxicol 2011; 8:47-69. [PMID: 22097965 DOI: 10.1517/17425255.2012.637916] [Citation(s) in RCA: 116] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
INTRODUCTION The biggest challenge faced by the scientific community involved in drug development is to deliver safe and effective dosage of drugs without causing systemic toxicity. Therefore, novel nano-based delivery vehicles specifically targeting tumors but not normal tissues are urgently needed. AREAS COVERED Nanoparticles have beneficial aspects but can be toxic themselves, which is always a concern for any drug or delivery agent. This review examines and details the toxicological aspects that should be considered when planning to use nanoparticles in animals or in man for drug delivery or imaging. Subjects discussed in this review include i) overviews of applications of various nanoparticles for drug delivery and imaging; ii) toxicological aspects to consider when selecting particular nanoparticles for use in various applications in animals or man; iii) hurdles faced when examining nanoparticle toxicity; and iv) current approaches for assessing nanoparticle toxicity. EXPERT OPINION Nanotechnology has significant potential for advancing therapeutic efficacy and imaging in cancer; however, these agents can be toxic. Therefore, toxicity needs to be considered when selecting nanoparticles for a particular application. Methods for assessing nanoparticle toxicity need to be improved and standardized across all nanotechnology platforms in order to speed up the application of nanoparticle use in humans.
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Affiliation(s)
- Arati Sharma
- The Pennsylvania State University College of Medicine, Department of Pharmacology, R130, 500 University Drive, Hershey, PA 17033, USA
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Park HS, Lee JE, Cho MY, Noh YW, Sung MH, Poo H, Hong KS, Lim YT. pH-stimuli-responsive near-infrared optical imaging nanoprobe based on poly(γ-glutamic acid)/poly(β-amino ester) nanoparticles. NANOTECHNOLOGY 2011; 22:465603. [PMID: 22033077 DOI: 10.1088/0957-4484/22/46/465603] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
pH-stimuli-responsive near-infrared optical imaging nanoprobes are designed and synthesized in this study in a facile one-step synthesis process based on the use of the biocompatible and biodegradable polymer poly(γ-glutamic acid) (γ-PGA)/poly(β-amino ester) (PBAE). PBAE has good transfection efficiency and promotes degradation properties under acidic conditions. This pH-responsive degradability can be used for the effective release of encapsulating materials after cellular uptake. As an optical imaging probe, indocyanine green (ICG) is an FDA-approved near-infrared fluorescent dye with a quenching property at a high concentration. In this regard, we focus here on the rapid degradation of PBAE in an acidic environment, in which the nanoparticles are disassembled. This allows the ICG dyes to show enhanced fluorescence signals after being releasing from the particles. We demonstrated this principle in cellular uptake experiments. We expect that the developed pH-stimuli-responsive smart nanoprobes can be applied in intracellular delivery signaling applications.
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Affiliation(s)
- Hye Sun Park
- Graduate School and Department of Analytical Science and Technology, Chungnam National University, Yuseong-gu, Daejeon 305-764, Korea
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Kim HM, Lee H, Hong KS, Cho MY, Sung MH, Poo H, Lim YT. Synthesis and high performance of magnetofluorescent polyelectrolyte nanocomposites as MR/near-infrared multimodal cellular imaging nanoprobes. ACS NANO 2011; 5:8230-40. [PMID: 21932788 DOI: 10.1021/nn202912b] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
Here, we describe an easy but robust chemical strategy to synthesize high-performance magnetic resonance (MR)/near-infrared (NIR) multimodal imaging nanoprobes. Poly(γ-glutamic acid) was used for the convenient phase transfer of MnFe(2)O(4) nanoparticles dispersed in organic solvents into aqueous solutions and facilitated further ionic gelation with poly(l-lysine). During the gelation process, MnFe(2)O(4) nanoparticulate satellites were encapsulated in the ionic nanocomplex, which induced synergistic magnetism and resulted in huge T(2) relaxivity (r(2)). The positively charged outer surfaces were assembled with other negatively charged NIR emitting fluorescent nanocrystals and enabled the highly efficient delivery of the magnetofluorescent polyelectrolyte nanocomposites (MagFL-PEN) into cancer cells. The enhancement of negative contrast of MagFL-PEN at 2 μg/mL concentration was similar to that of Resovist at 20 μg/mL concentration. The NIR fluorescence microscopy images of the MagFL-PEN-labeled cells even at 12.5 pM were able to be clearly observed. The labeling efficiency of MagFL-PEN was approximately 65-fold higher compared to that of the commercialized fluorescent nanocrystals, only after 3 h incubation period, even at the test concentration (100 pM). Due to the high-performance capabilities both in materials properties and cell labeling efficiency, the MagFL-PEN is expected to be used as a highly efficient MR/NIR dual-modality imaging nanoprobe in the detection of cancer cells and monitoring of therapeutic cells in vivo.
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Affiliation(s)
- Hyun Min Kim
- Graduate School and Department of Analytical Science and Technology, Chungnam National University, Daejeon 305-764, Korea
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Inomata N, Chin K, Nagashima M, Ikezawa Z. Late-onset anaphylaxis due to poly (γ-glutamic acid) in the soup of commercial cold Chinese noodles in a patient with allergy to fermented soybeans (natto). Allergol Int 2011; 60:393-6. [PMID: 21430437 DOI: 10.2332/allergolint.10-cr-0267] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2010] [Accepted: 11/06/2010] [Indexed: 11/20/2022] Open
Abstract
BACKGROUND Fermented soybeans (natto) have been reported to induce IgE-mediated, late-onset anaphylaxis without early-phase responses. However, the relevant allergens of natto allergy have never been identified. CASE SUMMARY A 38-year-old man developed an anaphylactic reaction accompanied by flashing, generalized urticaria, conjunctival redness, and dyspnea 3 hours after ingestion of commercial cold Chinese noodles. He had avoided natto for the past year due to developing several anaphylactic reactions half a day after natto ingestion. The results of skin prick tests (SPTs) were strongly positive for natto and the soup of cold Chinese noodles. Furthermore, SPTs showed positive for poly (γ-glutamic acid) (PGA), which is a major constituent of natto mucilage, alone among all the ingredients of the cold Chinese noodle soup. Therefore, he was diagnosed with late-onset anaphylaxis to PGA contained in natto and the cold Chinese noodle soup. DISCUSSION These results indicated that in the present case, the relevant allergen of late-onset anaphylaxis may have been PGA in all episodes and that the patient had been sensitized by PGA through natto ingestion. PGA is produced by Bacillus subtilis during fermentation and is a high-molecular, biodegradable polymer. The late onset is therefore, hypothesized to be due to a delayed absorption of PGA, as PGA biodegrades to peptides sufficiently small to be absorbed in the bowel. PGA has recently been applied to a wide range of fields such as foods, cosmetics, and medicine. Therefore, patients with late-onset anaphylaxis to PGA of natto should avoid not only natto but also other materials containing PGA.
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Affiliation(s)
- Naoko Inomata
- Department of Dermatology, Yokohama City University Hospital, Kanagawa, Japan.
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Lanz-Landázuri A, García-Alvarez M, Portilla-Arias J, de Ilarduya AM, Patil R, Holler E, Ljubimova JY, Muñoz-Guerra S. Poly(methyl malate) nanoparticles: formation, degradation, and encapsulation of anticancer drugs. Macromol Biosci 2011; 11:1370-7. [PMID: 21793213 DOI: 10.1002/mabi.201100107] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2011] [Indexed: 11/12/2022]
Abstract
PMLA nanoparticles with diameters of 150-250 nm are prepared, and their hydrolytic degradation is studied under physiological conditions. Degradation occurs by hydrolysis of the side chain methyl ester followed by cleavage of the main-chain ester group with methanol and L-malic acid as the final degradation products. No alteration of the cell viability is found after 1 h of incubation, but toxicity increases significantly after 3 d, probably due to the noxious effect of the released methanol. Anticancer drugs temozolomide and doxorubicin are encapsulated in the NPs with 20-40% efficiency, and their release is monitored using in vitro essays. Temozolomide is fully liberated within several hours, whereas doxorubicin is steadily released from the particles over a period of 1 month.
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Affiliation(s)
- Alberto Lanz-Landázuri
- Departament d'Enginyeria Química, Universitat Politècnica de Catalunya, ETSEIB, Diagonal 647, 08028 Barcelona, Spain
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Chung KH, Cho MY, Sung MH, Poo H, Lim YT. Electrostatically assembled biocompatible polymer nanoparticles for MR/optical dual-modality imaging nanoprobes. Chem Commun (Camb) 2011; 47:8889-91. [DOI: 10.1039/c1cc11922b] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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47
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Wang C, Feng M, Deng J, Zhao Y, Zeng X, Han L, Pan S, Wu C. Poly(α-glutamic acid) combined with polycation as serum-resistant carriers for gene delivery. Int J Pharm 2010; 398:237-45. [PMID: 20678564 DOI: 10.1016/j.ijpharm.2010.07.048] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2010] [Revised: 07/05/2010] [Accepted: 07/26/2010] [Indexed: 11/30/2022]
Abstract
The transfection efficiency of cationic polymers decreases dramatically in the presence of serum, which hampers the in vivo application of these polymers for gene delivery. Due to its shielding effect of poly(alpha-glutamic acid) (PGA) from negatively charged serum proteins, it was introduced into DNA polyplexes to overcome the serum inhibitory effect. In the present studies, the transfection efficiency of DNA/PEI/PGA terplex system was compared to PEI 25 kDa and Lipofectamine 2000 in the presence of serum. The successful formation of DNA/PEI/PGA terplexes was confirmed by their near-neutral surface charge. Interaction between components in the terplex system demonstrated that PGA was competing with DNA to combine with PEI. PEI/PGA combined carriers were not cytotoxic at a C/N ratio higher than 0.3. The in vitro transfection efficiency of DNA/PEI/PGA terplexes was not significantly different from those of DNA/PEI25kDa in serum-free medium. Importantly, in serum-containing medium, the DNA terplexes at their optimal C/N ratios maintained the same level of transfection efficiency as that of serum-free medium, even though the transfection efficiency of PEI 25 kDa and Lipofectamine 2000 was significantly decreased under serum-containing conditions. CLSM results confirmed that the cellular import of pDNA delivered by PEI/PGA combined carriers was more efficient than PEI 25 kDa alone under serum-containing conditions. Therefore, PGA could be used as a versatile serum-resistant reagent to overcome the serum inhibitory effect of polycations for gene delivery.
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Affiliation(s)
- Cuifeng Wang
- School of Pharmaceutical Sciences, Sun Yat-sen University, University Town, Guangzhou 510006, PR China
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48
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Liu J, Ma X, Wang Y, Liu F, Qiao J, Li XZ, Gao X, Zhou T. Depressed Biofilm Production in Bacillus amyloliquefaciens C06 Causes γ-Polyglutamic Acid (γ-PGA) Overproduction. Curr Microbiol 2010; 62:235-41. [DOI: 10.1007/s00284-010-9696-0] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2010] [Accepted: 05/20/2010] [Indexed: 11/29/2022]
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Kalishwaralal K, BarathManiKanth S, Pandian SRK, Deepak V, Gurunathan S. Silver nano — A trove for retinal therapies. J Control Release 2010; 145:76-90. [DOI: 10.1016/j.jconrel.2010.03.022] [Citation(s) in RCA: 81] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2010] [Accepted: 03/24/2010] [Indexed: 11/29/2022]
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Manocha B, Margaritis A. A novel Method for the selective recovery and purification of γ-polyglutamic acid fromBacillus licheniformisfermentation broth. Biotechnol Prog 2010; 26:734-42. [DOI: 10.1002/btpr.370] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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