151
|
Optimization and evaluation of Oridonin-loaded Soluplus ®-Pluronic P105 mixed micelles for oral administration. Int J Pharm 2016; 518:193-202. [PMID: 28012993 DOI: 10.1016/j.ijpharm.2016.12.047] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2016] [Revised: 12/07/2016] [Accepted: 12/21/2016] [Indexed: 01/07/2023]
Abstract
In this study, a new type of mixed micelles was developed using Soluplus® (SOL) and Pluronic® P105 (P105) for the encapsulation of Oridonin (ORN). Oridonin-loaded micelles (ORN-M) were simply prepared using solvent evaporation and characterized for particle size, particle morphology, encapsulation efficiency, and drug loading. In addition, the in vitro drug release behavior of ORN-M was assessed using the widely applied dialysis bag technique. The pharmacokinetic property of ORN was explored in rats after oral administration of ORN-M. Optimized ORN-M were of a small size (137.2±1.65nm) and spherical shape when the ratio of SOL:P105 was 3:1, with entrapment efficiency 90.48±1.85% and drug loading 15.08±0.38%. Oral absorption capacity of ORN was greatly enhanced with a relative bioavailability of 210.55% in comparison to that of in-house suspensions, which suggests that ORN-M shows significantly improved bioavailability and drug absorption characteristics. Overall, the optimized SOL-P105 dual mixed micelles show great potential for use as oral drug carriers for cancer treatment.
Collapse
|
152
|
Wen J, Yang K, Xu Y, Li H, Liu F, Sun S. Construction of A Triple-Stimuli-Responsive System Based on Cerium Oxide Coated Mesoporous Silica Nanoparticles. Sci Rep 2016; 6:38931. [PMID: 27941942 PMCID: PMC5150981 DOI: 10.1038/srep38931] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2016] [Accepted: 11/15/2016] [Indexed: 12/11/2022] Open
Abstract
In this work, a triple-stimuli (GSH, pH and light irradiation) responsive system were designed based on CeO2 nanoparticles (CeO2 NPs) coated doxorubicin (DOX) and photosensitizer hematoporphyrin (HP) dual-loaded mesoporous silica nanoparticles (MSN). Upon entering into cancer cells, both high concentration of intracellular GSH and low pH environment would reduce CeO2 NPs to cerium ions, accompanied with the degradation of CeO2 NPs and the conformational change of HP under light irradiation, the preloaded DOX are thus released from the nanocarrier, resulting in a contrast fluorescence enhancement. Meanwhile, 1O2 generated from HP for potential photodynamic therapy (PDT) upon light irradiation. In comparison, not much influence can be observed for normal cells. This nanosystem not only has a significantly enhanced efficacy for cancer cells but also broad the scope for the future design and applications of multifunctional platforms for synergetic chemotherapy and PDT.
Collapse
Affiliation(s)
- Jia Wen
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Science, Northwest A&F University, Yangling, Shaanxi 712100, People’s Republic of China
| | - Kui Yang
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Science, Northwest A&F University, Yangling, Shaanxi 712100, People’s Republic of China
| | - Yongqian Xu
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Science, Northwest A&F University, Yangling, Shaanxi 712100, People’s Republic of China
| | - Hongjuan Li
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Science, Northwest A&F University, Yangling, Shaanxi 712100, People’s Republic of China
| | - Fengyu Liu
- State Key Laboratory of Fine Chemicals, School of Chemistry, Dalian University of Technology, No.2 linggong Road, Ganjingzi, District, Dalian 116023, People’s Republic of China
| | - Shiguo Sun
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Science, Northwest A&F University, Yangling, Shaanxi 712100, People’s Republic of China
| |
Collapse
|
153
|
Wang M. Emerging Multifunctional NIR Photothermal Therapy Systems Based on Polypyrrole Nanoparticles. Polymers (Basel) 2016; 8:E373. [PMID: 30974650 PMCID: PMC6432477 DOI: 10.3390/polym8100373] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2016] [Revised: 10/05/2016] [Accepted: 10/10/2016] [Indexed: 01/09/2023] Open
Abstract
Near-infrared (NIR)-light-triggered therapy platforms are now considered as a new and exciting possibility for clinical nanomedicine applications. As a promising photothermal agent, polypyrrole (PPy) nanoparticles have been extensively studied for the hyperthermia in cancer therapy due to their strong NIR light photothermal effect and excellent biocompatibility. However, the photothermal application of PPy based nanomaterials is still in its preliminary stage. Developing PPy based multifunctional nanomaterials for cancer treatment in vivo should be the future trend and object for cancer therapy. In this review, the synthesis of PPy nanoparticles and their NIR photothermal conversion performance were first discussed, followed by a summary of the recent progress in the design and implementation on the mulitifunctionalization of PPy or PPy based therapeutic platforms, as well as the introduction of their exciting biomedical applications based on the synergy between the photothermal conversion effect and other stimulative responsibilities.
Collapse
Affiliation(s)
- Mozhen Wang
- CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei 230026, China.
| |
Collapse
|
154
|
Edson JA, Kwon YJ. Design, challenge, and promise of stimuli-responsive nanoantibiotics. NANO CONVERGENCE 2016; 3:26. [PMID: 28191436 PMCID: PMC5271158 DOI: 10.1186/s40580-016-0085-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2016] [Accepted: 09/22/2016] [Indexed: 05/18/2023]
Abstract
Over the past few years, there have been calls for novel antimicrobials to combat the rise of drug-resistant bacteria. While some promising new discoveries have met this call, it is not nearly enough. The major problem is that although these new promising antimicrobials serve as a short-term solution, they lack the potential to provide a long-term solution. The conventional method of creating new antibiotics relies heavily on the discovery of an antimicrobial compound from another microbe. This paradigm of development is flawed due to the fact that microbes can easily transfer a resistant mechanism if faced with an environmental pressure. Furthermore, there has been some evidence to indicate that the environment of the microbe can provide a hint as to their virulence. Because of this, the use of materials with antimicrobial properties has been garnering interest. Nanoantibiotics, (nAbts), provide a new way to circumvent the current paradigm of antimicrobial discovery and presents a novel mechanism of attack not found in microbes yet; which may lead to a longer-term solution against drug-resistance formation. This allows for environment-specific activation and efficacy of the nAbts but may also open up and create new design methods for various applications. These nAbts provide promise, but there is still ample work to be done in their development. This review looks at possible ways of improving and optimizing nAbts by making them stimuli-responsive, then consider the challenges ahead, and industrial applications.Graphical abstractA graphic detailing how the current paradigm of antibiotic discovery can be circumvented by the use of nanoantibiotics.
Collapse
Affiliation(s)
- Julius A. Edson
- Department of Chemical Engineering and Material Science, University of California, Irvine, Irvine, CA USA
| | - Young Jik Kwon
- Department of Chemical Engineering and Material Science, University of California, Irvine, Irvine, CA USA
- Department of Pharmaceutical Sciences, University of California, Irvine, Irvine, CA USA
- Department of Biomedical Engineering, University of California, Irvine, Irvine, CA USA
- Department of Molecular Biology and Biochemistry, University of California, Irvine, Irvine, CA USA
- 132 Sprague Hall, Irvine, CA USA
| |
Collapse
|
155
|
Das R, Rinaldi-Montes N, Alonso J, Amghouz Z, Garaio E, García JA, Gorria P, Blanco JA, Phan MH, Srikanth H. Boosted Hyperthermia Therapy by Combined AC Magnetic and Photothermal Exposures in Ag/Fe3O4 Nanoflowers. ACS APPLIED MATERIALS & INTERFACES 2016; 8:25162-9. [PMID: 27589410 DOI: 10.1021/acsami.6b09942] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Over the past two decades, magnetic hyperthermia and photothermal therapy are becoming very promising supplementary techniques to well-established cancer treatments such as radiotherapy and chemotherapy. These techniques have dramatically improved their ability to perform controlled treatments, relying on the procedure of delivering nanoscale objects into targeted tumor tissues, which can release therapeutic killing doses of heat either upon AC magnetic field exposure or laser irradiation. Although an intense research effort has been made in recent years to study, separately, magnetic hyperthermia using iron oxide nanoparticles and photothermal therapy based on gold or silver plasmonic nanostructures, the full potential of combining both techniques has not yet been systematically explored. Here we present a proof-of-principle experiment showing that designing multifunctional silver/magnetite (Ag/Fe3O4) nanoflowers acting as dual hyperthermia agents is an efficient route for enhancing their heating ability or specific absorption rate (SAR). Interestingly, the SAR of the nanoflowers is increased by at least 1 order of magnitude under the application of both an external magnetic field of 200 Oe and simultaneous laser irradiation. Furthermore, our results show that the synergistic exploitation of the magnetic and photothermal properties of the nanoflowers reduces the magnetic field and laser intensities that would be required in the case that both external stimuli were applied separately. This constitutes a key step toward optimizing the hyperthermia therapy through a combined multifunctional magnetic and photothermal treatment and improving our understanding of the therapeutic process to specific applications that will entail coordinated efforts in physics, engineering, biology, and medicine.
Collapse
Affiliation(s)
- R Das
- Department of Physics, University of South Florida , Tampa, Florida 33620, United States
| | - N Rinaldi-Montes
- Department of Physics, University of South Florida , Tampa, Florida 33620, United States
- Departamento de Física, Universidad de Oviedo , Oviedo E-33007, Spain
| | - J Alonso
- Department of Physics, University of South Florida , Tampa, Florida 33620, United States
- BCMaterials Edificio No. 500, Parque Tecnológico de Vizcaya , Derio 48160, Spain
| | - Z Amghouz
- Servicios Científico-Técnicos, Universidad de Oviedo , Oviedo E-33006, Spain
| | - E Garaio
- Department of Electricity and Electronics, University of Basque Country (UPV/EHU) , Leoia 48940, Spain
| | - J A García
- BCMaterials Edificio No. 500, Parque Tecnológico de Vizcaya , Derio 48160, Spain
- Department of Applied Physics II, University of Basque Country (UPV/EHU) , Leoia 48940, Spain
| | - P Gorria
- Departamento de Física & IUTA, EPI, Universidad de Oviedo , Gijón E-33203, Spain
| | - J A Blanco
- Departamento de Física, Universidad de Oviedo , Oviedo E-33007, Spain
| | - M H Phan
- Department of Physics, University of South Florida , Tampa, Florida 33620, United States
| | - H Srikanth
- Department of Physics, University of South Florida , Tampa, Florida 33620, United States
| |
Collapse
|
156
|
Wang L, Luan J, Du L, Li L, Liu J, Liu Z, Zhuo R. Polyaspartamide-based multi-responsive micelle with sheddable shell for antitumor drug delivery. RSC Adv 2016. [DOI: 10.1039/c6ra23173j] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A multi-stimuli (pH/thermo/reduction) responsive graft copolymer based on a polyaspartamide derivative is reported for Dox delivery.
Collapse
Affiliation(s)
- Lei Wang
- Key Laboratory of Biomedical Polymers of the Ministry of Education
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan 430072
- P. R. China
| | - Jie Luan
- Key Laboratory of Biomedical Polymers of the Ministry of Education
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan 430072
- P. R. China
| | - Lina Du
- Key Laboratory of Biomedical Polymers of the Ministry of Education
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan 430072
- P. R. China
| | - Le Li
- Key Laboratory of Biomedical Polymers of the Ministry of Education
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan 430072
- P. R. China
| | - Jia Liu
- Key Laboratory of Biomedical Polymers of the Ministry of Education
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan 430072
- P. R. China
| | - Zhilan Liu
- Key Laboratory of Biomedical Polymers of the Ministry of Education
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan 430072
- P. R. China
| | - Renxi Zhuo
- Key Laboratory of Biomedical Polymers of the Ministry of Education
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan 430072
- P. R. China
| |
Collapse
|