1
|
Racovita S, Trofin MA, Vasiliu AL, Avadanei M, Loghin DF, Mihai M, Vasiliu S. Studies on Sorption and Release of Doxycycline Hydrochloride from Zwitterionic Microparticles with Carboxybetaine Moieties. Int J Mol Sci 2024; 25:7871. [PMID: 39063114 PMCID: PMC11277556 DOI: 10.3390/ijms25147871] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2024] [Revised: 07/15/2024] [Accepted: 07/17/2024] [Indexed: 07/28/2024] Open
Abstract
The aim of this study was to examine the use of zwitterionic microparticles as new and efficient macromolecular supports for the sorption of an antibiotic (doxycycline hydrochloride, DCH) from aqueous solution. The effect of relevant process parameters of sorption, like dosage of microparticles, pH value, contact time, the initial concentration of drug and temperature, was evaluated to obtain the optimal experimental conditions. The sorption kinetics were investigated using Lagergren, Ho, Elovich and Weber-Morris models, respectively. The sorption efficiency was characterized by applying the Langmuir, Freundlich and Dubinin-Radushkevich isotherm models. The calculated thermodynamic parameters (ΔH, ΔS and ΔG) show that the sorption of doxycycline hydrochloride onto zwitterionic microparticles is endothermic, spontaneous and favorable at higher temperatures. The maximum identified sorption capacity value is 157.860 mg/g at 308 K. The Higuchi, Korsmeyer-Peppas, Baker-Lonsdale and Kopcha models are used to describe the release studies. In vitro release studies show that the release mechanism of doxycycline hydrochloride from zwitterionic microparticles is predominantly anomalous or non-Fickian diffusion. This study could provide the opportunity to expand the use of these new zwitterionic structures in medicine and water purification.
Collapse
Affiliation(s)
- Stefania Racovita
- “Petru Poni” Institute of Macromolecular Chemistry, 41 A Grigore Ghica Voda Alley, 700487 Iasi, Romania; (M.-A.T.); (A.-L.V.); (M.A.); (D.F.L.); (M.M.); (S.V.)
| | | | | | | | | | | | | |
Collapse
|
2
|
Liu H, Lu HH, Alp Y, Wu R, Thayumanavan S. Structural Determinants of Stimuli-Responsiveness in Amphiphilic Macromolecular Nano-assemblies. Prog Polym Sci 2024; 148:101765. [PMID: 38476148 PMCID: PMC10927256 DOI: 10.1016/j.progpolymsci.2023.101765] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/14/2024]
Abstract
Stimuli-responsive nano-assemblies from amphiphilic macromolecules could undergo controlled structural transformations and generate diverse macroscopic phenomenon under stimuli. Due to the controllable responsiveness, they have been applied for broad material and biomedical applications, such as biologics delivery, sensing, imaging, and catalysis. Understanding the mechanisms of the assembly-disassembly processes and structural determinants behind the responsive properties is fundamentally important for designing the next generation of nano-assemblies with programmable responsiveness. In this review, we focus on structural determinants of assemblies from amphiphilic macromolecules and their macromolecular level alterations under stimuli, such as the disruption of hydrophilic-lipophilic balance (HLB), depolymerization, decrosslinking, and changes of molecular packing in assemblies, which eventually lead to a series of macroscopic phenomenon for practical purposes. Applications of stimuli-responsive nano-assemblies in delivery, sensing and imaging were also summarized based on their structural features. We expect this review could provide readers an overview of the structural considerations in the design and applications of nanoassemblies and incentivize more explorations in stimuli-responsive soft matters.
Collapse
Affiliation(s)
- Hongxu Liu
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065 P. R. China
- Department of Chemistry, University of Massachusetts Amherst, Amherst, Massachusetts 01003, United States
| | - Hung-Hsun Lu
- Department of Chemistry, University of Massachusetts Amherst, Amherst, Massachusetts 01003, United States
| | - Yasin Alp
- Department of Chemistry, University of Massachusetts Amherst, Amherst, Massachusetts 01003, United States
| | - Ruiling Wu
- Department of Chemistry, University of Massachusetts Amherst, Amherst, Massachusetts 01003, United States
| | - S. Thayumanavan
- Department of Chemistry, University of Massachusetts Amherst, Amherst, Massachusetts 01003, United States
- Department of Biomedical Engineering, University of Massachusetts, Amherst, Massachusetts 01003, United States
- Center for Bioactive Delivery, Institute for Applied Life Sciences, University of Massachusetts, Amherst, Massachusetts 01003, United States
| |
Collapse
|
3
|
Zhang F, Pei G, Huang B, Xu J, Zhang L. Exploring release mechanisms by disrupting π-π stacking regions in stable micelles. J Mater Chem B 2023; 11:9246-9259. [PMID: 37721031 DOI: 10.1039/d3tb01388j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/19/2023]
Abstract
π-π stacking strategies can enhance the stability performance of delivery platforms but are often restricted by incomplete drug release performance, even with the help of crosslinking strategies. Therefore, there has been considerable interest in enhancing the drug release performance by disrupting the π-π stacking region (structural rearrangements). Herein, we synthesized poly(3-(isobutyloxy)-2-oxopropyl benzoate)-b-poly(2-hydroxybutyl methacrylate)-co-poly((ethylene glycol)methylether methacrylate) [PBOOPMA-b-P(HBMA-co-PEGMA), PHB] and revealed the drug release mechanism of PHB-based micelles. The structural rearrangements derived from the crosslinking strategy were revealed to improve the early release performance by 43-55% using micellar dissolutions. Moreover, the esterase-responsive strategy was elucidated to induce reassembly with 77-79% size variation, intensifying the structural rearrangements, which was also synergistic with the crosslinking strategy. Based on the advantages of improving drug release performance, the esterase-responsive strategy was considered a promising candidate for enhancing late release performance. Meanwhile, it is believed that such responsive modulation (crosslinking, esterase-responsive) in the π-π stacking region will become highly promising for subsequent research. Finally, the biosafety of 95.81% at 400 mg L-1 and drug cytotoxicity of IC50 ≈ 2.5 mg L-1 of PHB-EDE@CPT were also validated, confirming the broad application prospects of PHB-based crosslinked micelles.
Collapse
Affiliation(s)
- Fusheng Zhang
- Guangdong Provincial Key Lab of Green Chemical Product Technology, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China.
| | - Gongcui Pei
- Guangdong Provincial Key Lab of Green Chemical Product Technology, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China.
| | - Baihao Huang
- Guangdong Provincial Key Lab of Green Chemical Product Technology, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China.
| | - Jianchang Xu
- Key Laboratory of Advanced Drug Delivery Systems of Zhejiang Province, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China
| | - Lijuan Zhang
- Guangdong Provincial Key Lab of Green Chemical Product Technology, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China.
| |
Collapse
|
4
|
Recent Advances in the Application of ATRP in the Synthesis of Drug Delivery Systems. Polymers (Basel) 2023; 15:polym15051234. [PMID: 36904474 PMCID: PMC10007417 DOI: 10.3390/polym15051234] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Revised: 02/26/2023] [Accepted: 02/27/2023] [Indexed: 03/06/2023] Open
Abstract
Advances in atom transfer radical polymerization (ATRP) have enabled the precise design and preparation of nanostructured polymeric materials for a variety of biomedical applications. This paper briefly summarizes recent developments in the synthesis of bio-therapeutics for drug delivery based on linear and branched block copolymers and bioconjugates using ATRP, which have been tested in drug delivery systems (DDSs) over the past decade. An important trend is the rapid development of a number of smart DDSs that can release bioactive materials in response to certain external stimuli, either physical (e.g., light, ultrasound, or temperature) or chemical factors (e.g., changes in pH values and/or environmental redox potential). The use of ATRPs in the synthesis of polymeric bioconjugates containing drugs, proteins, and nucleic acids, as well as systems applied in combination therapies, has also received considerable attention.
Collapse
|
5
|
Lin W, Zhang J, Zhang F, Wu W, Chen F, Zhang Z, Lin X, Yang C, Yi G. Mesoscopic Simulations of Diselenide-Containing Crosslinked Doxorubicin-Loaded Micelles and Their Tumor Microenvironment Responsive Release Behaviors. J Pharm Sci 2022; 112:1388-1400. [PMID: 36566929 DOI: 10.1016/j.xphs.2022.12.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Revised: 12/18/2022] [Accepted: 12/19/2022] [Indexed: 12/24/2022]
Abstract
There is currently limited research on the structure-property relationship of reduction stimuli-responsive polymeric crosslinked micelles using mesoscopic simulations. Herein, dissipative particle dynamics (DPD) simulations were used to simulate the self-assembly process of the blank non-crosslinked micelle, the structure and doxorubicin (DOX) distribution of diselenide crosslinked micelle with different crosslinker contents (CCs) based on the nearest-neighbor bonding principle. The results revealed that the formation of a three-layer spherical micelle and the loaded DOX mainly distributed in the polycaprolactone (PCL) core and hydroxyethyl methacrylate (HEMA) mesosphere. The larger the dosage of DOX, the more DOX encapsulated, but the encapsulation of DOX in the hydrophobic domain would reach saturation when the dosage increased to 6.0 %. In micelles with lower CCs or crosslinking levels (CLs), DOX entered the middle layer and the inner core faster. Then, based on the nearest media-bead bond breaking principle and subsequently DPD simulation, the effects of different CCs on the micelle structure and DOX release properties were investigated. Low CC could cause fast drug release. With the increase of CCs, the micelle showed a slower DOX release trend. The multilayer crosslinked network system also affected the DOX release rate. Hence, this work can provide some mesoscale guidance for the structural design and structure-property relationship of stimuli-responsive reversible crosslinked micelles for drug delivery.
Collapse
Affiliation(s)
- Wenjing Lin
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, 510006, PR China
| | - Jieheng Zhang
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, 510006, PR China
| | - Fusheng Zhang
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, 510640, PR China
| | - Wensheng Wu
- College of Environmental and Chemical Engineering, Zhaoqing University, Zhaoqing, 526061, PR China
| | - Feihua Chen
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, 510006, PR China
| | - Zikang Zhang
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, 510006, PR China
| | - Xiaofeng Lin
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, 510006, PR China
| | - Chufen Yang
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, 510006, PR China.
| | - Guobin Yi
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, 510006, PR China.
| |
Collapse
|
6
|
Gebrie HT, Addisu KD, Darge HF, Birhan YS, Thankachan D, Tsai HC, Wu SY. pH/redox-responsive core cross-linked based prodrug micelle for enhancing micellar stability and controlling delivery of chemo drugs: An effective combination drug delivery platform for cancer therapy. BIOMATERIALS ADVANCES 2022; 139:213015. [PMID: 35882161 DOI: 10.1016/j.bioadv.2022.213015] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Revised: 06/22/2022] [Accepted: 07/02/2022] [Indexed: 06/15/2023]
Abstract
Core-crosslinking of micelles (CCMs) appears to be a favorable strategy to enhance micellar stability and sustained release of the loaded drug. In this study, the DOX-conjugated pH-sensitive polymeric prodrug Methoxy Poly (ethylene oxide)-b-Poly (Aspartate-Hydrazide) (mPEG-P [Asp-(Hyd-DOX)] was created using ring-opening polymerization. To further enhance the micellar system, 3,3'-diselanediyldipropanoic acid (DSeDPA) was applied to link the hydrophobic segment via click reaction to form pH/redox-responsive CCMs. Dual anti-cancer drugs, DOX as a pro-drug and SN-38 as a targeting drug, were used to enhance inhibition. DLS confirmed that the non-cross-linked micelle (NCMs) showed a higher (96.43 nm) particle size compared to the CCMs (72.63 nm). Due to micellar shrinkage after crosslinking, CCMs displayed SN-38 drug loading (7.32 %) and encapsulation efficiency (86.23 %). The mPEG-P(Asp-Hyd) copolymer's in vitro cytotoxicity on HeLa and HaCaT cell lines found that 84.52 % of the cells are alive, and zebrafish (Danio rerio) embryos and larvae are highly biocompatible. The DOX/SN-38@CCMs had a sustained discharge profile in vitro, unlike the DOX/SN-38@NCMs. In DOX/SN-38@CCMs, HeLa cells were inhibited 50.90 % more than HaCaT (14.25 %) at the maximum drug dose (10 μg/mL). The CCMs successfully targeted and supplied DOX/SN-38 in HeLa cells rather than HaCaT cells, based on cellular uptake of 2D cell culture. CCMs, unlike NCMs, inhibit the growth of spheroids for extended periods of time due to the prolonged release of the loaded drug. Overall, CCMs are good-looking for use as regulated delivery of DOX/SN-38 in cancer cells because of all of these appealing characteristics.
Collapse
Affiliation(s)
- Hailemichael Tegenu Gebrie
- Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology, Taipei 106, Taiwan, ROC
| | - Kefyalew Dagnew Addisu
- Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology, Taipei 106, Taiwan, ROC
| | - Haile Fentahun Darge
- Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology, Taipei 106, Taiwan, ROC
| | - Yihenew Simegniew Birhan
- Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology, Taipei 106, Taiwan, ROC
| | - Darieo Thankachan
- Department of Materials Science And Engineering, National Taiwan University of Science and Technology, Taipei 106, Taiwan, ROC
| | - Hsieh-Chih Tsai
- Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology, Taipei 106, Taiwan, ROC; Advanced Membrane Material Center, National Taiwan University of Science and Technology, Taipei 106, Taiwan, ROC; R&d Center for Membrane Technology, Chung Yuan Christian University, Chungli, Taoyuan 320, Taiwan, ROC.
| | - Szu-Yuan Wu
- Department of Food Nutrition and Health Biotechnology, College of Medical and Health Science, Asia University, Taichung, Taiwan; Division of Radiation Oncology, Department of Medicine, Lo-Hsu Medical Foundation, Lotung Poh-Ai Hospital, Yilan, Taiwan; Big Data Center, Lo-Hsu Medical Foundation, Lotung Poh-Ai Hospital, Yilan, Taiwan; Department of Healthcare Administration, College of Medical and Health Science, Asia University, Taichung, Taiwan; Artificial Intelligence Development Center, Fu Jen Catholic University, Taipei, Taiwan.; Graduate Institute of Business Administration, College of Management, Fu Jen Catholic University, Taipei, Taiwan; Center for Regional Anesthesia and Pain Medicine, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan.
| |
Collapse
|
7
|
Jazani AM, Arezi N, Shetty C, Oh JK. Shell-Sheddable/Core-Degradable ABA Triblock Copolymer Nanoassemblies: Synthesis via RAFT and Concurrent ATRP/RAFT Polymerization and Drug Delivery Application. Mol Pharm 2022. [DOI: 10.1021/acs.molpharmaceut.1c00622] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Arman Moini Jazani
- Department of Chemistry and Biochemistry, Concordia University, Montreal, Quebec H4B 1R6, Canada
| | - Newsha Arezi
- Department of Chemistry and Biochemistry, Concordia University, Montreal, Quebec H4B 1R6, Canada
| | - Chaitra Shetty
- Department of Chemistry and Biochemistry, Concordia University, Montreal, Quebec H4B 1R6, Canada
| | - Jung Kwon Oh
- Department of Chemistry and Biochemistry, Concordia University, Montreal, Quebec H4B 1R6, Canada
| |
Collapse
|
8
|
Redox-Responsive Crosslinked Mixed Micelles for Controllable Release of Caffeic Acid Phenethyl Ester. Pharmaceutics 2022; 14:pharmaceutics14030679. [PMID: 35336053 PMCID: PMC8953340 DOI: 10.3390/pharmaceutics14030679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 03/11/2022] [Accepted: 03/18/2022] [Indexed: 11/17/2022] Open
Abstract
We report the elaboration of redox-responsive functional micellar nanocarriers designed for triggered release of caffeic acid phenethyl ester (CAPE) in cancer therapy. Three-layered micelles, comprising a poly(ε-caprolactone) (PCL) core, a middle poly(acrylic acid)/poly(ethylene oxide) (PAA/PEO) layer and a PEO outer corona, were prepared by co-assembly of PEO113-b-PCL35-b-PEO113 and PAA13-b-PCL35-b-PAA13 amphiphilic triblock copolymers in aqueous media. The preformed micelles were loaded with CAPE via hydrophobic interactions between the drug molecules and PCL core, and subsequently crosslinked by reaction of carboxyl groups from PAA and a disulfide crosslinking agent. The reaction of crosslinking took place in the middle layer of the nanocarriers without changing the encapsulation efficiency (EE~90%) of the system. The crosslinked polymeric micelles (CPMs) exhibited superior structural stability and did not release CAPE in phosphate buffer (pH 7.4). However, in weak acidic media and in the presence of 10 mM reducing agent (dithiothreitol, DTT), the payload was released at a high rate from CPMs due to the breakup of disulfide linkages. The physicochemical properties of the nanocarriers were investigated by dynamic and electrophoretic light scattering (DLS and ELS) and atomic force microscopy (AFM). The rapid release of CAPE under intracellular-like conditions and the lack of premature drug release in media resembling the blood stream (neutral pH) make the developed CPMs a promising candidate for controllable drug release in the microenvironment of tumors.
Collapse
|
9
|
Yadav S, Ramesh K, Kumar P, Jo SH, Yoo SII, Gal YS, Park SH, Lim KT. Near-Infrared Light-Responsive Shell-Crosslinked Micelles of Poly(d,l-lactide)- b-poly((furfuryl methacrylate)- co-( N-acryloylmorpholine)) Prepared by Diels-Alder Reaction for the Triggered Release of Doxorubicin. MATERIALS (BASEL, SWITZERLAND) 2021; 14:7913. [PMID: 34947507 PMCID: PMC8705764 DOI: 10.3390/ma14247913] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Revised: 12/15/2021] [Accepted: 12/15/2021] [Indexed: 01/05/2023]
Abstract
In the present study, we developed near-infrared (NIR)-responsive shell-crosslinked (SCL) micelles using the Diels-Alder (DA) click reaction between an amphiphilic copolymer poly(d,l-lactide)20-b-poly((furfuryl methacrylate)10-co-(N-acryloylmorpholine)78) (PLA20-b-P(FMA10-co-NAM78)) and a diselenide-containing crosslinker, bis(maleimidoethyl) 3,3'-diselanediyldipropionoate (BMEDSeDP). The PLA20-b-P(FMA10-co-NAM78) copolymer was synthesized by RAFT polymerization of FMA and NAM using a PLA20-macro-chain transfer agent (PLA20-CTA). The DA reaction between BMEDSeDP and the furfuryl moieties in the copolymeric micelles in water resulted in the formation of SCL micelles. The SCL micelles were analyzed by 1H-NMR, FE-SEM, and DLS. An anticancer drug, doxorubicin (DOX), and an NIR sensitizer, indocyanine green (ICG), were effectively incorporated into the SCL micelles during the crosslinking reaction. The DOX/ICG-loaded SCL micelles showed pH- and NIR-responsive drug release, where burst release was observed under NIR laser irradiation. The in vitro cytotoxicity analysis demonstrated that the SCL was not cytotoxic against normal HFF-1 cells, while DOX/ICG-loaded SCL micelles exhibited significant antitumor activity toward HeLa cells. Thus, the SCL micelles of PLA20-b-P(FMA10-co-NAM78) can be used as a potential delivery vehicle for the controlled drug release in cancer therapy.
Collapse
Affiliation(s)
- Sonyabapu Yadav
- Department of Display Engineering, Pukyong National University, Busan 48513, Korea; (S.Y.); (K.R.); (P.K.)
| | - Kalyan Ramesh
- Department of Display Engineering, Pukyong National University, Busan 48513, Korea; (S.Y.); (K.R.); (P.K.)
- Department of Chemistry, University of Massachusetts Lowell, Lowell, MA 01854, USA
| | - Parveen Kumar
- Department of Display Engineering, Pukyong National University, Busan 48513, Korea; (S.Y.); (K.R.); (P.K.)
| | - Sung-Han Jo
- Department of Biomedical Engineering, Pukyong National University, Busan 48513, Korea; (S.-H.J.); (S.-H.P.)
| | - Seong II Yoo
- Department of Polymer Engineering, Pukyong National University, Busan 48513, Korea;
| | - Yeong-Soon Gal
- Department of Fire Safety, Kyungil University, Gyeongsan 38428, Korea;
| | - Sang-Hyug Park
- Department of Biomedical Engineering, Pukyong National University, Busan 48513, Korea; (S.-H.J.); (S.-H.P.)
| | - Kwon Taek Lim
- Department of Display Engineering, Pukyong National University, Busan 48513, Korea; (S.Y.); (K.R.); (P.K.)
| |
Collapse
|
10
|
Arjama M, Mehnath S, Rajan M, Jeyaraj M. Engineered Hyaluronic Acid-Based Smart Nanoconjugates for Enhanced Intracellular Drug Delivery. J Pharm Sci 2021; 112:1603-1614. [PMID: 34678274 DOI: 10.1016/j.xphs.2021.10.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Revised: 10/12/2021] [Accepted: 10/12/2021] [Indexed: 12/20/2022]
Abstract
Bacterial polysaccharides can be easily modified to offer dual stimuli-responsive drug delivery systems with double targeting potential. In this research work, bacterial polysaccharides hyaluronic acid (HA) were functionalized with α-tocopherol polyethylene glycol succinate (TPGS) and cholic acid (CA) to form multifunctional polysaccharides nanoconjugates (TPGS-HA-CA). Smart nanoconjugates were synthesized by forming a redox-responsive disulfide bond, and it is composed of double targeting ligands. Doxorubicin (DOX) encapsulated smart nanoconjugates were exhibited an average size of 200 nm with a uniform core-shell structure. It serves the pH-responsive side chain modulation of TPGS-HA-CA, which affords a high degree of swelling at acidic pH. Under the pH 5.0 it shows 57% of release due to the side chain modulation of C-H/N-H. Polysaccharides nanoconjugates exhibited the double stimuli-responsive drug delivery by rapid disassembly of disulfide linkage, which exhibited 72% drug release (pH 5.0+GSH 10 mM). In cytotoxic studies, DOX@TPGS-HA-CA exhibited a higher cytotoxic effect compared to DOX. Hyaluronic acid functionalization with CA, TPGS increases cell internalization, and dual stimuli activity promotes more cell death. Overall, multifunctional polysaccharides hydrogel nanoconjugates is a prospective material that has great potential for targeting breast cancer therapy.
Collapse
Affiliation(s)
- Mukherjee Arjama
- National Centre for Nanoscience and Nanotechnology, University of Madras, Guindy Campus, Chennai 25, Tamil Nadu, India
| | - Sivaraj Mehnath
- National Centre for Nanoscience and Nanotechnology, University of Madras, Guindy Campus, Chennai 25, Tamil Nadu, India
| | - Mariappan Rajan
- Department of Natural Products Chemistry, School of Chemistry, Madurai Kamaraj University, Madurai 21, Tamil Nadu, India
| | - Murugaraj Jeyaraj
- National Centre for Nanoscience and Nanotechnology, University of Madras, Guindy Campus, Chennai 25, Tamil Nadu, India.
| |
Collapse
|
11
|
Dong J, Du X, Zhang Y, Zhuang T, Cui X, Li Z. Thermo/glutathione-sensitive release kinetics of heterogeneous magnetic micro-organogel prepared by sono-catalysis. Colloids Surf B Biointerfaces 2021; 208:112109. [PMID: 34562785 DOI: 10.1016/j.colsurfb.2021.112109] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Revised: 09/06/2021] [Accepted: 09/07/2021] [Indexed: 12/17/2022]
Abstract
To improve the loading and delivery for hydrophobic drugs and optimize the release efficiency in tumor microenvironment, a novel core-shell magnetic micro-organogel carrier was successfully prepared by a sono-catalysis process in the study. As-synthesized magnetic micro-organogel had an appropriate dispersibility in water owing to the hydrophilicity of protein shell and could be kept steadily with a well-defined spherical morphology owing to the three-dimensional gel structure of oil core, and it promised an accessible targeted drug delivery owing to its good magnetism-mediated motion ability. Moreover, the magnetic micro-organogel showed a high loading efficiency up to 94.22% for coumarin 6 which was dissolved into the micro-organogel as a model hydrophobic drug. More importantly, the release kinetics revealed that the magnetic micro-organogel had a thermo-sensitive and glutathione (GSH)-sensitive ability to control the drug release, and proved that its release mechanisms referred to the combination of erosion, diffusion and degradation.
Collapse
Affiliation(s)
- Jun Dong
- College of Chemistry and Chemical Engineering, Shandong Sino-Japanese Center for Collaborative Research of Carbon Nanomaterials, Instrumental Analysis Center, Qingdao University, 266071 Qingdao, China
| | - Xiaoyu Du
- College of Chemistry and Chemical Engineering, Shandong Sino-Japanese Center for Collaborative Research of Carbon Nanomaterials, Instrumental Analysis Center, Qingdao University, 266071 Qingdao, China
| | - Yongqiang Zhang
- College of Chemistry, Jilin University, 130012 Changchun, China; Junan Sub-Bureau of Linyi Ecological Environmental Bureau, 276600 Linyi, China
| | - Tingting Zhuang
- College of Chemistry and Chemical Engineering, Shandong Sino-Japanese Center for Collaborative Research of Carbon Nanomaterials, Instrumental Analysis Center, Qingdao University, 266071 Qingdao, China
| | - Xuejun Cui
- College of Chemistry, Jilin University, 130012 Changchun, China
| | - Zhanfeng Li
- College of Chemistry and Chemical Engineering, Shandong Sino-Japanese Center for Collaborative Research of Carbon Nanomaterials, Instrumental Analysis Center, Qingdao University, 266071 Qingdao, China.
| |
Collapse
|
12
|
Hu X, Jazani AM, Oh JK. Recent advances in development of imine-based acid-degradable polymeric nanoassemblies for intracellular drug delivery. POLYMER 2021. [DOI: 10.1016/j.polymer.2021.124024] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
|
13
|
Murugan B, Sagadevan S, Fatimah I, Oh WC, Motalib Hossain MA, Johan MR. Smart stimuli-responsive nanocarriers for the cancer therapy – nanomedicine. NANOTECHNOLOGY REVIEWS 2021; 10:933-953. [DOI: 10.1515/ntrev-2021-0067] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
Abstract
Abstract
Nanomedicine is ongoing current research in the applications of nanotechnology for cancer therapy. Simply from a technology perspective, this field of research has an enormous broadening and success to date. Recently, nanomedicine has also made inroads in the treatment of cancer. Stimuli-responsive nanoparticles are an emerging field of research because its targeting capacity is of great interest in the treatment of cancer. The responsive nanoparticles are efficient in encountering different internal biological stimuli (acidic, pH, redox, and enzyme) and external stimuli (temperature, ultrasounds, magnetic field, and light), which are used as smart nanocarriers for delivery of the chemotherapeutic and imaging agents for cancer therapy. In-depth, the responsive nanocarrier that responds to the biological cues is of pronounced interest due to its capability to provide a controlled release profile at the tumor-specific site. The outlook of this review focuses on the stimuli-responsive nanocarrier drug delivery systems in sequence to address the biological challenges that need to be evaluated to overcome conventional cancer therapy.
Collapse
Affiliation(s)
- Baranya Murugan
- Centre for Nanotechnology & Advanced Biomaterials, SASTRA Deemed-to-be University , Thanjavur , 613401 , India
- School of Chemical & Biotechnology, SASTRA Deemed-to-be University , Thanjavur , 613401 , India
| | - Suresh Sagadevan
- Nanotechnology & Catalysis Research Centre, University of Malaya , 50603 , Kuala Lumpur , Malaysia
| | - Is Fatimah
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Islam Indonesia, Kampus Terpadu UII , Jl. Kaliurang Km 14, Sleman , Yogyakarta , Indonesia
| | - Won-Chun Oh
- Department of Advanced Materials Science and Engineering, Hanseo University , Seosan-si , Chungnam , 356-706 , Republic of Korea
| | - Mohd Abd Motalib Hossain
- Nanotechnology & Catalysis Research Centre, University of Malaya , 50603 , Kuala Lumpur , Malaysia
| | - Mohd Rafie Johan
- Nanotechnology & Catalysis Research Centre, University of Malaya , 50603 , Kuala Lumpur , Malaysia
| |
Collapse
|
14
|
Oliveira ASR, Mendonça PV, Simões S, Serra AC, Coelho JFJ. Amphiphilic well‐defined degradable star block copolymers by combination of ring‐opening polymerization and atom transfer radical polymerization: Synthesis and application as drug delivery carriers. JOURNAL OF POLYMER SCIENCE 2021. [DOI: 10.1002/pol.20200802] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Andreia S. R. Oliveira
- Centre for Mechanical Engineering, Materials and Processes, Department of Chemical Engineering University of Coimbra Coimbra Portugal
| | - Patrícia V. Mendonça
- Centre for Mechanical Engineering, Materials and Processes, Department of Chemical Engineering University of Coimbra Coimbra Portugal
| | - Sérgio Simões
- Faculty of Pharmacy University of Coimbra Coimbra Portugal
| | - Arménio C. Serra
- Centre for Mechanical Engineering, Materials and Processes, Department of Chemical Engineering University of Coimbra Coimbra Portugal
| | - Jorge F. J. Coelho
- Centre for Mechanical Engineering, Materials and Processes, Department of Chemical Engineering University of Coimbra Coimbra Portugal
| |
Collapse
|
15
|
Wen W, Guo C, Guo J. Acid-Responsive Adamantane-Cored Amphiphilic Block Polymers as Platforms for Drug Delivery. NANOMATERIALS 2021; 11:nano11010188. [PMID: 33451051 PMCID: PMC7828523 DOI: 10.3390/nano11010188] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Revised: 01/06/2021] [Accepted: 01/09/2021] [Indexed: 12/19/2022]
Abstract
Four-arm star-shaped (denoted as ‘S’) polymer adamantane-[poly(lactic-co-glycolic acid)-b-poly(N,N’-diethylaminoethyl methacrylate) poly(ethylene glycol) monomethyl ether]4 (S-PLGA-D-P) and its linear (denoted as ‘L’) counterpart (L-PLGA-D-P) were synthesized, then their self-assembled micelles were further developed to be platforms for anticancer drug delivery. Two types of polymeric micelles exhibited strong pH-responsiveness and good drug loading capacity (21.6% for S-PLGA-D-P and 22.9% for L-PLGA-D-P). Using doxorubicin (DOX) as the model drug, their DOX-loaded micelles displayed well controlled drug release behavior (18.5–19.0% of DOX release at pH 7.4 and 77.6–78.8% of DOX release at pH 5.0 within 80 h), good cytocompatibility against NIH-3T3 cells and effective anticancer efficacy against MCF-7 cells. However, the star-shaped polymeric micelles exhibited preferable stability, which was confirmed by the lower critical micelle concentration (CMC 0.0034 mg/mL) and decrease rate of particle sizes after 7 days incubation (3.5%), compared with the linear polymeric micelle L-PLGA-D-P (CMC 0.0070 mg/mL, decrease rate of particle sizes was 9.6%). Overall, these developed polymeric micelles have promising application as drug delivery system in cancer therapy.
Collapse
Affiliation(s)
- Weiqiu Wen
- School of Chemical Engineering & Light Industry, Guangdong University of Technology, Guangzhou 510006, China;
| | - Chong Guo
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, China;
| | - Jianwei Guo
- School of Chemical Engineering & Light Industry, Guangdong University of Technology, Guangzhou 510006, China;
- Correspondence:
| |
Collapse
|
16
|
Herold HM, Döbl A, Wohlrab S, Humenik M, Scheibel T. Designed Spider Silk-Based Drug Carrier for Redox- or pH-Triggered Drug Release. Biomacromolecules 2020; 21:4904-4912. [PMID: 33249826 DOI: 10.1021/acs.biomac.0c01138] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Targeted drug delivery and controlled drug release can be obtained using specifically designed polymers as carriers. Due to their biocompatibility and biodegradability and especially the lack of an immune response, materials made of spider silk proteins are promising candidates for use in such applications. Particles made of recombinant spider silk proteins have previously been shown to be suitable drug and gene carriers as they could readily be loaded with various drug substances or biologicals, and subsequent release was observed over a defined period of time. However, the respective substances were bound non-covalently via hydrophobic or charge-charge interactions, and hence, the release of loaded substances could not be spatio-temporally controlled. Here, we present a setup of chemically modified recombinant spider silk protein eADF4 and variants thereof, combining their well-established biocompatible properties with covalent drug binding and triggered release upon changes in the pH or redox state, respectively. The usefulness of the spider silk platform technology was shown with model substances and cytostatic drugs bound to spider silk particles or films via a pH-labile hydrazine linker as one option, and the drugs could be released from the spider silk carriers upon acidification of the environment as seen, e.g., in tumorous tissues or endo/lysosomes. Sulfhydryl-bearing spider silk variants allowed model substance release if exposed to intracellular GSH (glutathione) levels as a second coupling option. The combination of non-immunogenic, nontoxic spider silk materials as drug carriers with precisely triggerable release chemistry presents a platform technology for a wide range of applications.
Collapse
Affiliation(s)
- Heike M Herold
- Lehrstuhl Biomaterialien, Fakultät für Ingenieurwissenschaften, Universität Bayreuth, Prof.-Rüdiger-Bormann-Str. 1, Bayreuth 95447, Germany
| | - Annika Döbl
- Lehrstuhl Biomaterialien, Fakultät für Ingenieurwissenschaften, Universität Bayreuth, Prof.-Rüdiger-Bormann-Str. 1, Bayreuth 95447, Germany
| | - Stefanie Wohlrab
- Lehrstuhl Biomaterialien, Fakultät für Ingenieurwissenschaften, Universität Bayreuth, Prof.-Rüdiger-Bormann-Str. 1, Bayreuth 95447, Germany
| | - Martin Humenik
- Lehrstuhl Biomaterialien, Fakultät für Ingenieurwissenschaften, Universität Bayreuth, Prof.-Rüdiger-Bormann-Str. 1, Bayreuth 95447, Germany
| | - Thomas Scheibel
- Lehrstuhl Biomaterialien, Fakultät für Ingenieurwissenschaften, Universität Bayreuth, Prof.-Rüdiger-Bormann-Str. 1, Bayreuth 95447, Germany.,Bayreuther Zentrum für Kolloide und Grenzflächen (BZKG), Universität Bayreuth, Universitätsstraße 30, Bayreuth 95440, Germany.,Bayerisches Polymerinstitut (BPI), Universitätsstraße 30, Bayreuth 95440, Germany.,Bayreuther Zentrum für Molekulare Biowissenschaften (BZMB), Universität Bayreuth, Universitätsstraße 30, Bayreuth 95440, Germany.,Bayreuther Materialzentrum (BayMAT), Universität Bayreuth, Universitätsstraße 30, Bayreuth 95440, Germany
| |
Collapse
|
17
|
Lo YL, Huang XS, Chen HY, Huang YC, Liao ZX, Wang LF. ROP and ATRP fabricated redox sensitive micelles based on PCL-SS-PMAA diblock copolymers to co-deliver PTX and CDDP for lung cancer therapy. Colloids Surf B Biointerfaces 2020; 198:111443. [PMID: 33203600 DOI: 10.1016/j.colsurfb.2020.111443] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Revised: 10/25/2020] [Accepted: 10/28/2020] [Indexed: 12/15/2022]
Abstract
Combining dual drugs in one vehicle to cancer cells offers spatiotemporal localization of drug at the site of action, leading to synergistic therapeutic effects and reduced side effects. To improve pH/redox responsiveness to the tumor microenvironments for cancer therapy, a pH/redox-responsive micelle based on poly(ε-caprolactone)-SS-poly(methacrylic acid) (PCL-SS-PMAA) diblock copolymer was fabricated for dual drug delivery. The PCL-SS-PMAA was formulated into a core-shell micelle (PSPm) in an aqueous solution. The critical micelle concentration (CMC) values of PSPm were 7.94 × 10-3 mg mL-1 at pH 5.0 and 1.00 × 10-2 mg mL-1 at pH 7.4. The hydrodynamic diameters of PSPm were within 210-270 nm, depending on pH values. Changes in morphology and size of PSPm were clearly observed before and after exposure to a reducing agent. Paclitaxel (PTX) was encapsulated into the core and cisplatin (CDDP) was chelated on the shell of PSPm, with both PTX and CDDP being efficiently released from PSPm in the presence of a reducing agent in an acid condition. MTT and annexin V/propidium iodide dual staining results demonstrated that co-loading of CDDP and PTX into PSPm had a synergistic effect in killing lung cancer cells and exerted superior antitumor activity over the combination of single drug-loaded PSPm or the combination of free-CDDP and free-PTX at equivalent drug amounts. Hence, encapsulating the dual drugs into PSPm exhibits a synergistic effect for potential lung cancer therapy.
Collapse
Affiliation(s)
- Yu-Lun Lo
- Department of Medicinal & Applied Chemistry, College of Life Sciences, Kaohsiung Medical University, Kaohsiung, 807, Taiwan
| | - Xiao-Shan Huang
- Institute of Medical Science and Technology, National Sun Yat-Sen University, Kaohsiung, 804, Taiwan
| | - Hsuan-Ying Chen
- Department of Medicinal & Applied Chemistry, College of Life Sciences, Kaohsiung Medical University, Kaohsiung, 807, Taiwan
| | - Yuan-Chun Huang
- Department of Medicinal & Applied Chemistry, College of Life Sciences, Kaohsiung Medical University, Kaohsiung, 807, Taiwan
| | - Zi-Xian Liao
- Institute of Medical Science and Technology, National Sun Yat-Sen University, Kaohsiung, 804, Taiwan.
| | - Li-Fang Wang
- Department of Medicinal & Applied Chemistry, College of Life Sciences, Kaohsiung Medical University, Kaohsiung, 807, Taiwan; Institute of Medical Science and Technology, National Sun Yat-Sen University, Kaohsiung, 804, Taiwan; Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung, 807, Taiwan.
| |
Collapse
|
18
|
Birhan YS, Darge HF, Hanurry EY, Andrgie AT, Mekonnen TW, Chou HY, Lai JY, Tsai HC. Fabrication of Core Crosslinked Polymeric Micelles as Nanocarriers for Doxorubicin Delivery: Self-Assembly, In Situ Diselenide Metathesis and Redox-Responsive Drug Release. Pharmaceutics 2020; 12:E580. [PMID: 32585885 PMCID: PMC7356386 DOI: 10.3390/pharmaceutics12060580] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2020] [Revised: 06/09/2020] [Accepted: 06/17/2020] [Indexed: 11/23/2022] Open
Abstract
Polymeric micelles (PMs) have been used to improve the poor aqueous solubility, slow absorption and non-selective biodistribution of chemotherapeutic agents (CAs), albeit, they suffer from disassembly and premature release of payloads in the bloodstream. To alleviate the thermodynamic instability of PMs, different core crosslinking approaches were employed. Herein, we synthesized the poly(ethylene oxide)-b-poly((2-aminoethyl)diselanyl)ethyl l-aspartamide)-b-polycaprolactone (mPEG-P(LA-DSeDEA)-PCL) copolymer which self-assembled into monodispersed nanoscale, 156.57 ± 4.42 nm, core crosslinked micelles (CCMs) through visible light-induced diselenide metathesis reaction between the pendant selenocystamine moieties. The CCMs demonstrated desirable doxorubicin (DOX)-loading content (7.31%) and encapsulation efficiency (42.73%). Both blank and DOX-loaded CCMs (DOX@CCMs) established appreciable colloidal stability in the presence of bovine serum albumin (BSA). The DOX@CCMs showed redox-responsive drug releasing behavior when treated with 5 and 10 mM reduced glutathione (GSH) and 0.1% H2O2. Unlike the DOX-loaded non-crosslinked micelles (DOX@NCMs) which exhibited initial burst release, DOX@CCMs demonstrated a sustained release profile in vitro where 71.7% of the encapsulated DOX was released within 72 h. In addition, the in vitro fluorescent microscope images and flow cytometry analysis confirmed the efficient cellular internalization of DOX@CCMs. The in vitro cytotoxicity test on HaCaT, MDCK, and HeLa cell lines reiterated the cytocompatibility (≥82% cell viability) of the mPEG-P(LA-DSeDEA)-PCL copolymer and DOX@CCMs selectively inhibit the viabilities of 48.85% of HeLa cells as compared to 15.75% of HaCaT and 7.85% of MDCK cells at a maximum dose of 10 µg/mL. Overall, all these appealing attributes make CCMs desirable as nanocarriers for the delivery and controlled release of DOX in tumor cells.
Collapse
Affiliation(s)
- Yihenew Simegniew Birhan
- Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology, Taipei 106, Taiwan; (Y.S.B.); (H.F.D.); (E.Y.H.); (A.T.A.); (T.W.M.); (H.-Y.C.); (J.-Y.L.)
| | - Haile Fentahun Darge
- Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology, Taipei 106, Taiwan; (Y.S.B.); (H.F.D.); (E.Y.H.); (A.T.A.); (T.W.M.); (H.-Y.C.); (J.-Y.L.)
| | - Endiries Yibru Hanurry
- Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology, Taipei 106, Taiwan; (Y.S.B.); (H.F.D.); (E.Y.H.); (A.T.A.); (T.W.M.); (H.-Y.C.); (J.-Y.L.)
| | - Abegaz Tizazu Andrgie
- Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology, Taipei 106, Taiwan; (Y.S.B.); (H.F.D.); (E.Y.H.); (A.T.A.); (T.W.M.); (H.-Y.C.); (J.-Y.L.)
| | - Tefera Worku Mekonnen
- Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology, Taipei 106, Taiwan; (Y.S.B.); (H.F.D.); (E.Y.H.); (A.T.A.); (T.W.M.); (H.-Y.C.); (J.-Y.L.)
| | - Hsiao-Ying Chou
- Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology, Taipei 106, Taiwan; (Y.S.B.); (H.F.D.); (E.Y.H.); (A.T.A.); (T.W.M.); (H.-Y.C.); (J.-Y.L.)
| | - Juin-Yih Lai
- Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology, Taipei 106, Taiwan; (Y.S.B.); (H.F.D.); (E.Y.H.); (A.T.A.); (T.W.M.); (H.-Y.C.); (J.-Y.L.)
- Advanced Membrane Materials Center, National Taiwan University of Science and Technology, Taipei 106, Taiwan
- R&D Center for Membrane Technology, Chung Yuan Christian University, Chungli, Taoyuan 320, Taiwan
| | - Hsieh-Chih Tsai
- Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology, Taipei 106, Taiwan; (Y.S.B.); (H.F.D.); (E.Y.H.); (A.T.A.); (T.W.M.); (H.-Y.C.); (J.-Y.L.)
- Advanced Membrane Materials Center, National Taiwan University of Science and Technology, Taipei 106, Taiwan
- R&D Center for Membrane Technology, Chung Yuan Christian University, Chungli, Taoyuan 320, Taiwan
| |
Collapse
|
19
|
Liu H, Quan Y, Jiang X, Zhao X, Zhou Y, Fu J, Du L, Zhao X, Zhao J, Liang L, Yi D, Huang Y, Ye G. Using Polypeptide Bearing Furan Side Chains as a General Platform to Achieve Highly Effective Preparation of Smart Glycopolypeptide Analogue-Based Nano-Prodrugs for Cancer Treatment. Colloids Surf B Biointerfaces 2020; 194:111165. [PMID: 32521460 DOI: 10.1016/j.colsurfb.2020.111165] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Revised: 05/26/2020] [Accepted: 06/01/2020] [Indexed: 10/24/2022]
Abstract
Although several synthetic polypeptide-based nano-prodrugs (NPDs) have entered clinical trials for cancer treatment, achieving a highly effective production of the NPDs for clinical translation remains a challenge. Herein, we develop a typical preparation of pH/glutathione (GSH) dual-responsive glycopolypeptide analogue NPDs having a high drug capsulation/loading efficiency of ca. 93% and ca. 27% even based on ring-opening polymerization (ROP) of a novel and general furan-containing N-carboxyanhydride (NCA) monomer, which facilitates the Diels-Alder (D-A) side-chain functionalization by maleimide modified chemotherapy drug without using any reactive additives. High reactivity of the D-A reaction resulting in the high preparation efficiency of the NPDs is confirmed by 1H NMR and density functional theory (DFT) calculations. The self-assembled properties as well as the dual-responsiveness of the NPDs are systemically studied by particle size and zeta potential assay, transmission electron microscopy and drug-delivery dynamics. The cell uptake mechanism, intracellular drug distribution, in vitro/vivo antitumor activity evaluations and the main organ damages of the NPDs are all investigated. Our work can provide a good solution to solve the inefficient fabrication of the smart synthetic polypeptide-based micelles for cancer treatment by following this general and sophisticated platform.
Collapse
Affiliation(s)
- Houhe Liu
- The Fifth Affiliated Hospital & School of Pharmaceutical Sciences & Key Lab of Molecular Target and Clinical Pharmacology of Guangdong Province, Guangzhou Medical University, Guangzhou, 511436, China
| | - Yusi Quan
- The Fifth Affiliated Hospital & School of Pharmaceutical Sciences & Key Lab of Molecular Target and Clinical Pharmacology of Guangdong Province, Guangzhou Medical University, Guangzhou, 511436, China
| | - Xinlin Jiang
- The Fifth Affiliated Hospital & School of Pharmaceutical Sciences & Key Lab of Molecular Target and Clinical Pharmacology of Guangdong Province, Guangzhou Medical University, Guangzhou, 511436, China
| | - Xiaotian Zhao
- The Fifth Affiliated Hospital & School of Pharmaceutical Sciences & Key Lab of Molecular Target and Clinical Pharmacology of Guangdong Province, Guangzhou Medical University, Guangzhou, 511436, China
| | - Yi Zhou
- The Fifth Affiliated Hospital & School of Pharmaceutical Sciences & Key Lab of Molecular Target and Clinical Pharmacology of Guangdong Province, Guangzhou Medical University, Guangzhou, 511436, China
| | - Jijun Fu
- The Fifth Affiliated Hospital & School of Pharmaceutical Sciences & Key Lab of Molecular Target and Clinical Pharmacology of Guangdong Province, Guangzhou Medical University, Guangzhou, 511436, China
| | - Lingran Du
- The Fifth Affiliated Hospital & School of Pharmaceutical Sciences & Key Lab of Molecular Target and Clinical Pharmacology of Guangdong Province, Guangzhou Medical University, Guangzhou, 511436, China
| | - Xiaoya Zhao
- The Fifth Affiliated Hospital & School of Pharmaceutical Sciences & Key Lab of Molecular Target and Clinical Pharmacology of Guangdong Province, Guangzhou Medical University, Guangzhou, 511436, China
| | - Jing Zhao
- The Fifth Affiliated Hospital & School of Pharmaceutical Sciences & Key Lab of Molecular Target and Clinical Pharmacology of Guangdong Province, Guangzhou Medical University, Guangzhou, 511436, China
| | - Lu Liang
- The Fifth Affiliated Hospital & School of Pharmaceutical Sciences & Key Lab of Molecular Target and Clinical Pharmacology of Guangdong Province, Guangzhou Medical University, Guangzhou, 511436, China
| | - Di Yi
- Department of Pathology, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, 511436, China
| | - Yugang Huang
- The Fifth Affiliated Hospital & School of Pharmaceutical Sciences & Key Lab of Molecular Target and Clinical Pharmacology of Guangdong Province, Guangzhou Medical University, Guangzhou, 511436, China.
| | - Guodong Ye
- The Fifth Affiliated Hospital & School of Pharmaceutical Sciences & Key Lab of Molecular Target and Clinical Pharmacology of Guangdong Province, Guangzhou Medical University, Guangzhou, 511436, China.
| |
Collapse
|
20
|
Su M, Xiao S, Shu M, Lu Y, Zeng Q, Xie J, Jiang Z, Liu J. Enzymatic multifunctional biodegradable polymers for pH- and ROS-responsive anticancer drug delivery. Colloids Surf B Biointerfaces 2020; 193:111067. [PMID: 32388121 DOI: 10.1016/j.colsurfb.2020.111067] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Revised: 04/11/2020] [Accepted: 04/17/2020] [Indexed: 01/09/2023]
Abstract
A new family of multifunctional biodegradable block copolymers, PEG-poly(ω-pentadecalactone-co-N-methyldiethyleneamine sebacate-co-2,2'-thiodiethylene sebacate) (PEG-PMT), were synthesized via lipase-catalyzed copolymerization procedures. Amphiphilic PEG-PMT copolymers can be readily transformed into stable micellar nanoparticles through self-assembling processes in aqueous medium. The particle sizes increase dramatically after exposure of the particles to the acidic pH and high reactive oxygen species (ROS) conditions in tumor microenvironments, due to protonation of thioether groups and oxidation of amino groups in the PMT micelle cores, respectively. For example, docetaxel (DTX)-loaded PEG-PM-19 % TS micelles were triggered synergistically by acidic pH and ROS stimuli to release over 85 % of the anti-cancer drug. In particular, DTX/PEG-PMT-19 % TS and DTX/PEG-PMT-48 % TS micelles performed better than commercial Duopafei formulation in prohibiting growth of CT-26 tumors xenografed in vivo (70 % of tumor-inhibiting efficiency). Biosafety analysis revealed that DTX-loaded PEG-PMT nanoparticles possessed minimal toxicity towards normal organs, such as liver and kidney. These experimental data demonstrated that the pH- and ROS-responsive PEG-PMT micelles are promising vectors for both delivery of anti-tumor drugs and their controlled release at tumor intracellular sites.
Collapse
Affiliation(s)
- Meifei Su
- School of Biomedical Engineering, Sun Yat-sen University, Guangzhou, Guangdong, 510006, China
| | - Shuting Xiao
- School of Biomedical Engineering, Sun Yat-sen University, Guangzhou, Guangdong, 510006, China
| | - Man Shu
- School of Biomedical Engineering, Sun Yat-sen University, Guangzhou, Guangdong, 510006, China
| | - Yao Lu
- School of Biomedical Engineering, Sun Yat-sen University, Guangzhou, Guangdong, 510006, China
| | - Qiang Zeng
- School of Biomedical Engineering, Sun Yat-sen University, Guangzhou, Guangdong, 510006, China
| | - Jianhua Xie
- School of Biomedical Engineering, Sun Yat-sen University, Guangzhou, Guangdong, 510006, China
| | - Zhaozhong Jiang
- Department of Biomedical Engineering, Integrated Science and Technology Center, Yale University, 600 West Campus Drive, West Haven, CT, 06516, United States.
| | - Jie Liu
- School of Biomedical Engineering, Sun Yat-sen University, Guangzhou, Guangdong, 510006, China.
| |
Collapse
|
21
|
Yu C, Wang L, Xu Z, Teng W, Wu Z, Xiong D. Smart micelles self-assembled from four-arm star polymers as potential drug carriers for pH-triggered DOX release. JOURNAL OF POLYMER RESEARCH 2020. [DOI: 10.1007/s10965-020-02108-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
|
22
|
Dual-Responsive Cross-Linked Micelles from Amphiphilic Four-Arm Star Copolymers with Different Block Ratios for Triggering DOX Release. Macromol Res 2020. [DOI: 10.1007/s13233-020-9094-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
|
23
|
Xiong D, Wen L, Peng S, Xu J, Zhang L. Reversible Cross-Linked Mixed Micelles for pH Triggered Swelling and Redox Triggered Degradation for Enhanced and Controlled Drug Release. Pharmaceutics 2020; 12:E258. [PMID: 32178423 PMCID: PMC7151195 DOI: 10.3390/pharmaceutics12030258] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Revised: 03/04/2020] [Accepted: 03/10/2020] [Indexed: 01/20/2023] Open
Abstract
Good stability and controlled drug release are important properties of polymeric micelles for drug delivery. A good candidate for drug delivery must have outstanding stability in a normal physiological environment, followed with low drug leakage and side effects. Moreover, the chemotherapeutic drug in the micellar core should also be quickly and "on-demand" released in the intracellular microenvironment at the tumor site, which is in favor of overcoming multidrug resistance (MDR) effects of tumor cells. In this work, a mixed micelle was prepared by the simple mix of two amphiphilic copolymers, namely PCL-SS-P(PEGMA-co-MAEBA) and PCL-SS-PDMAEMA, in aqueous solution. In the mixed micelle's core-shell structure, PCL blocks were used as the hydrophobic core, while the micellar hydrophilic shell consisted of two blocks, namely P(PEGMA-co-MAEBA) and PDMAEMA. In the micellar shell, PEGMA provided hydrophilicity and stability, while MAEBA introduced the aldehyde sites for reversible crosslinking. Meanwhile, the PDMAEMA blocks were also introduced in the micellar shell for pH-responding protonation and swelling of the micelle. The disulfide bonds between the hydrophobic core and hydrophilic shell had redox sensitive properties. Reversible cross-linked micelles (RCLMs) were obtained by crosslinking the micellar shell with an imine structure. RCLMs showed good stability and excellent ability against extensive dilution by aqueous solution. In addition, the stability in different conditions with various pH values and glutathione (GSH) concentrations was studied. Then, the anticancer drug doxorubicin (DOX) was selected as the model drug to evaluate drug entrapment and release capacity of mixed micelles. The in vitro release profiles indicated that this RCLM had controlled drug release. In the simulated normal physiological environment (pH 7.4), the drug release of the RCLMs was restrained obviously, and the cumulative drug release content was only 25.7 during 72 h. When it came to acidic conditions (pH 5.0), de-crosslinking of the micelles occurred, as well as protonation of PDMAEMA blocks and micellar swelling at the same time, which enhanced the drug release to a large extent (81.4%, 72 h). Moreover, the drug release content was promoted further in the presence of the reductant GSH. In the condition of pH 5.0 with 10 mM GSH, disulfide bonds broke-up between the micelle core and shell, followed by shedding of the shell from the inner core. Then, the micellar disassembly (degradation) happened based on the de-crosslinking and swelling, and the drug release was as high as 95.3%. The MTT assay indicated that the CLSMs showed low cytotoxicity and good biocompatibility against the HepG2 cells. In contrast, the DOX-loaded CLSMs could efficiently restrain the proliferation of tumor cells, and the cell viability after 48 h incubation was just 13.2%, which was close to that of free DOX. This reversible cross-linked mixed micelle with pH/redox responsive behaviors is a potential nanocarrier for chemotherapy.
Collapse
Affiliation(s)
- Di Xiong
- School of Chemical Engineering, Xiangtan University, Xiangtan 411105, China
- Postdoctoral Station of Chemical Engineering and Technology, School of Chemical Engineering, Xiangtan University, Xiangtan 411105, China
| | - Liyang Wen
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China; (L.W.); (S.P.); (J.X.)
| | - Shiyuan Peng
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China; (L.W.); (S.P.); (J.X.)
| | - Jianchang Xu
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China; (L.W.); (S.P.); (J.X.)
| | - Lijuan Zhang
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China; (L.W.); (S.P.); (J.X.)
| |
Collapse
|
24
|
Alsehli M. Polymeric nanocarriers as stimuli-responsive systems for targeted tumor (cancer) therapy: Recent advances in drug delivery. Saudi Pharm J 2020; 28:255-265. [PMID: 32194326 PMCID: PMC7078546 DOI: 10.1016/j.jsps.2020.01.004] [Citation(s) in RCA: 52] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2019] [Accepted: 01/19/2020] [Indexed: 11/24/2022] Open
Abstract
In the last decade, considerable attention has been devoted to the use of biodegradable polymeric materials as potential drug delivery carriers. However, bioavailability and drug release at the disease site remain uncontrollable even with the use of polymeric nanocarriers. To address this issue, successful methodologies have been developed to synthesize polymeric nanocarriers incorporated with regions exhibiting a response to stimuli such as redox potential, temperature, pH, and light. The resultant stimuli-responsive polymeric nanocarriers have shown tremendous promise in drug delivery applications, owing to their ability to enhance the bioavailability of drugs at the disease site. In such systems, drug release is controlled in response to specific stimuli, either exogenous or endogenous. This review reports recent advances in the design of stimuli-responsive nanocarriers for drug delivery in cancer therapy. In particular, the synthetic methodologies investigated to date to introduce different types of stimuli-responsive elements within the biomaterials are described. The sufficient understanding of these stimuli-responsive nanocarriers will allow the development of a better drug delivery system that will allow us to solve the challenges encountered in targeted cancer therapy.
Collapse
Affiliation(s)
- Mosa Alsehli
- Department of Chemistry, Taibah University, Madina, Saudi Arabia
| |
Collapse
|
25
|
Huang Y, Yan J, Peng S, Tang Z, Tan C, Ling J, Lin W, Lin X, Zu X, Yi G. pH/Reduction Dual-Stimuli-Responsive Cross-Linked Micelles Based on Multi-Functional Amphiphilic Star Copolymer: Synthesis and Controlled Anti-Cancer Drug Release. Polymers (Basel) 2020; 12:E82. [PMID: 31947729 PMCID: PMC7023672 DOI: 10.3390/polym12010082] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Revised: 12/18/2019] [Accepted: 12/23/2019] [Indexed: 12/03/2022] Open
Abstract
Novel approach has been constructed for preparing the amphiphilic star copolymer pH/reduction stimuli-responsive cross-linked micelles (SCMs) as a smart drug delivery system for the well-controlled anti-tumor drug doxorubicin (DOX) release. The SCMs had a low CMC value of 5.3 mg/L. The blank and DOX-loaded SCMs both had a spherical shape with sizes around 100-180 nm. In addition, the good stability and well pH/reduction-sensitivity of the SCMs were determined by dynamic light scattering (DLS) as well. The SCMs owned a low release of DOX in bloodstream and normal tissues while it had a fast release in tumor higher glutathione (GSH) concentration and/or lower pH value conditions, which demonstrates their pH/reduction dual-responsiveness. Furthermore, we conducted the thermodynamic analysis to study the interactions between the DOX and polymer micelles in the DOX release process. The values of the thermodynamic parameters at pH 7.4 and at pH 5.0 conditions indicated that the DOX release was endothermic and controlled mainly by the forces of an electrostatic interaction. At pH 5.0 with 10 mM GSH condition, electrostatic interaction, chemical bond, and hydrophobic interactions contributed together on DOX release. With the low cytotoxicity of blank SCMs and well cytotoxicity of DOX-loaded SCMs, the results indicated that the SCMs could form a smart cancer microenvironment-responsive drug delivery system. The release kinetic and thermodynamic analysis offer a theoretical foundation for the interaction between drug molecules and polymer matrices, which helps provide a roadmap for the oriented design and control of anti-cancer drug release for cancer therapy.
Collapse
Affiliation(s)
- Yunwei Huang
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China
| | - Jingye Yan
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China
| | - Shiyuan Peng
- Guangdong Provincial Key Lab of Green Chemical Product Technology, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China
| | - Zilun Tang
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China
| | - Cuiying Tan
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China
| | - Jiabao Ling
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China
| | - Wenjing Lin
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China
| | - Xiaofeng Lin
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China
| | - Xihong Zu
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China
| | - Guobin Yi
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China
| |
Collapse
|
26
|
Jazani AM, Oh JK. Development and disassembly of single and multiple acid-cleavable block copolymer nanoassemblies for drug delivery. Polym Chem 2020. [DOI: 10.1039/d0py00234h] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Acid-degradable block copolymer-based nanoassemblies are promising intracellular candidates for tumor-targeting drug delivery as they exhibit the enhanced release of encapsulated drugs through their dissociation.
Collapse
Affiliation(s)
- Arman Moini Jazani
- Department of Chemistry and Biochemistry
- Concordia University
- Montreal
- Canada H4B 1R6
| | - Jung Kwon Oh
- Department of Chemistry and Biochemistry
- Concordia University
- Montreal
- Canada H4B 1R6
| |
Collapse
|
27
|
Shang Y, Zheng N, Wang Z. Tetraphenylsilane-Cored Star-Shaped Polymer Micelles with pH/Redox Dual Response and Active Targeting Function for Drug-Controlled Release. Biomacromolecules 2019; 20:4602-4610. [DOI: 10.1021/acs.biomac.9b01472] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Yingqi Shang
- State Key Laboratory of Fine Chemicals, Department of Polymer Science and Materials, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, Liaoning, China
| | - Nan Zheng
- State Key Laboratory of Fine Chemicals, Department of Polymer Science and Materials, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, Liaoning, China
| | - Zhonggang Wang
- State Key Laboratory of Fine Chemicals, Department of Polymer Science and Materials, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, Liaoning, China
| |
Collapse
|
28
|
Li Z, Du X, Cui X, Wang Z. Ultrasonic-assisted fabrication and release kinetics of two model redox-responsive magnetic microcapsules for hydrophobic drug delivery. ULTRASONICS SONOCHEMISTRY 2019; 57:223-232. [PMID: 31078396 DOI: 10.1016/j.ultsonch.2019.04.037] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2019] [Revised: 04/12/2019] [Accepted: 04/26/2019] [Indexed: 05/27/2023]
Abstract
The smart biocompatible carriers have an advantage in the high-efficiency delivery and stimuli-responsive release of drugs. This study describes two model magnetic microcapsules (MMC) fabricated by sonicating the hydrophobic drug-loaded oil phase in an albumin aqueous solution, where magnetic nanoparticles are either encapsulated into the core or embedded onto the albumin shell. The as-prepared MMC with magnetic shell (MS) or with magnetic core (MC) shows an appropriate dispersibility with a well-defined spherical morphology in water, an excellent magnetism-mediated shifting ability for targeted drug delivery, and a good biocompatibility for high-level cell viability. Moreover, both the two microcapsules also show a high efficiency to trap the hydrophobic drugs, where the embedding ratios are 87.41% for MMC-MS and 95.31% for MMC-MC, respectively. Meanwhile in current study, the release kinetics and mechanism reveal that the sulfhydryl-crosslinked shell structure endows the MMC with a redox-responsive behavior to release the contents for controlled drug release, and the release rate or the release amount can be adjusted by changing the dosage of reducing agent. Therefore, the MMC have great potential as a smart carrier of hydrophobic drugs for enhancing the therapeutic efficiency.
Collapse
Affiliation(s)
- Zhanfeng Li
- College of Chemistry and Chemical Engineering, Shandong Sino-Japanese Center for Collaborative Research of Carbon Nanomaterials, State Key Laboratory of Bio-Fibers and Eco-Textiles, Qingdao University, 266071 Qingdao, China; College of Chemistry, Jilin University, 130012 Changchun, China
| | - Xiaoyu Du
- College of Chemistry and Chemical Engineering, Shandong Sino-Japanese Center for Collaborative Research of Carbon Nanomaterials, State Key Laboratory of Bio-Fibers and Eco-Textiles, Qingdao University, 266071 Qingdao, China
| | - Xuejun Cui
- College of Chemistry, Jilin University, 130012 Changchun, China.
| | - Zonghua Wang
- College of Chemistry and Chemical Engineering, Shandong Sino-Japanese Center for Collaborative Research of Carbon Nanomaterials, State Key Laboratory of Bio-Fibers and Eco-Textiles, Qingdao University, 266071 Qingdao, China.
| |
Collapse
|
29
|
Lin W, Xue Z, Wen L, Li Y, Liang Z, Xu J, Yang C, Gu Y, Zhang J, Zu X, Luo H, Yi G, Zhang L. Mesoscopic simulations of drug-loaded diselenide crosslinked micelles: Stability, drug loading and release properties. Colloids Surf B Biointerfaces 2019; 182:110313. [DOI: 10.1016/j.colsurfb.2019.06.043] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Revised: 06/08/2019] [Accepted: 06/18/2019] [Indexed: 11/28/2022]
|
30
|
Shang Y, Guo L, Wang Z. Tetraphenylsilane‐Cored Star‐Shaped Amphiphilic Block Copolymers for pH‐Responsive Anticancer Drug Delivery. MACROMOL CHEM PHYS 2019. [DOI: 10.1002/macp.201900248] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Yingqi Shang
- Department of Polymer Science and MaterialsSchool of Chemical EngineeringDalian University of Technology Dalian 116024 China
| | - Lingxiao Guo
- Department of Polymer Science and MaterialsSchool of Chemical EngineeringDalian University of Technology Dalian 116024 China
| | - Zhonggang Wang
- Department of Polymer Science and MaterialsSchool of Chemical EngineeringDalian University of Technology Dalian 116024 China
| |
Collapse
|
31
|
Fabrication of Polymer Micelles with Zwitterionic Shell and Biodegradable Core for Reductively Responsive Release of Doxorubicin. Polymers (Basel) 2019; 11:polym11061019. [PMID: 31181866 PMCID: PMC6631697 DOI: 10.3390/polym11061019] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2019] [Revised: 05/27/2019] [Accepted: 06/06/2019] [Indexed: 12/22/2022] Open
Abstract
To achieve a high stability in physiological environment and rapid intracellular drug release, a biodegradable zwitterionic triblock copolymer with a disulfide-linked poly-ε-caprolactone and polycarboxybetaine methacrylate (PCBMA-SS-PCL-SS-PCBMA) was prepared for micellar carrier to delivery doxorubicin (DOX) into tumor cells. PCBMA-SS-PCL-SS-PCBMA was obtained by following steps: i) introducing disulfide bonds through end-group modification of PCL diol with cystamine dihydrochloride; ii) preparing PCL-RAFT macromolecular chain transfer agent by EDC/NHS chemistry; iii) RAFT polymerization of zwitterionic monomer. Self-assembling from PCBMA-SS-PCL-SS-PCBMA, polymeric micelles had many advantages, such as ultra-low protein absorption in serum and obvious reduction-responsiveness in the presence of DTT. Furthermore, DOX-loaded micelles exhibited high stability upon centrifugation and lyophilization, a fast intracellular drug release and enhanced drug efficacy due to GSH-triggered PCBMA shell shedding and micellar reassembling. Thus, the polymeric micelles integrated several functions and properties could be prospectively utilized as valuable nanocarriers in cancer chemotherapeutics.
Collapse
|
32
|
Chen F, Li Y, Fu Y, Hou Y, Chen Y, Luo X. The synthesis and co-micellization of PCL-P(HEMA/HEMA-LA) and PCL-P(HEMA/HEMA-FA) as shell cross-linked drug carriers with target/redox properties. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2019; 30:276-294. [PMID: 30556773 DOI: 10.1080/09205063.2018.1558486] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
In order to obtain target/redox shell cross-linked micelles (TCM), copolymers poly(ε-caprolactone)-poly(2-hydroxyethyl methacrylate/methacrylate-alpha lipoic acid) and poly(ε-caprolactone)-poly(2-hydroxyethyl methacrylate/methacrylate-folate, PCL-P(HEMA/HEMA-LA) and PCL-P(HEMA/HEMA-FA) were designed and synthesized. The copolymers PCL-P(HEMA/HEMA-LA) could form reduction-sensitive cross-linked micelles (CM) by using a catalytic amount of DTT. The micelles maintained high stability against dilution but were destroyed in 10 mM dithiothreitol (DTT). The drug loaded content (DLC) of CM was 8.9%, which was almost twice as much as non-cross-linked micelle (NCM). In vitro drug release at pH 7.4 showed that the cumulative release rate of CM in 36 h was less than 30%, while it was about 50% for NCM. When PCL-P(HEMA/HEMA-LA) and PCL-P(HEMA/HEMA-FA) (FA 1%, 3% and 5%) formed target/redox micelles, IC50 of TCM with FA 3% was the lowest (1.4 µg/mL) to Hela cells with excessive expression folate receptors. The cell uptake of TCM by Hela cells is higher than target non-cross-linked micelles (TNCM), while there was not much difference between both micelles uptaken by A549 cells, which are lack of folate receptors. Therefore, the drug carriers of TCM have potential to be explored as shell cross-linked target/redox drug carriers to the cancer cells on the surface with excessive folate receptors.
Collapse
Affiliation(s)
- Fan Chen
- a College of Polymer Science and Engineering , Sichuan University , Chengdu , P. R. China
| | - Yi Li
- a College of Polymer Science and Engineering , Sichuan University , Chengdu , P. R. China
| | - Ye Fu
- a College of Polymer Science and Engineering , Sichuan University , Chengdu , P. R. China
| | - Yu Hou
- a College of Polymer Science and Engineering , Sichuan University , Chengdu , P. R. China
| | - Yuanwei Chen
- a College of Polymer Science and Engineering , Sichuan University , Chengdu , P. R. China
| | - Xianglin Luo
- a College of Polymer Science and Engineering , Sichuan University , Chengdu , P. R. China.,b State Key Lab of Polymer Materials Engineering , Sichuan University , Chengdu , P.R. China
| |
Collapse
|
33
|
Xu J, Zhang J, Xiong D, Lin W, Wen L, Zhang L. Enhanced stability of crosslinked and charged unimolecular micelles from multigeometry triblock copolymers with short hydrophilic segments: dissipative particle dynamics simulation. SOFT MATTER 2019; 15:546-558. [PMID: 30644512 DOI: 10.1039/c8sm01941j] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
High micellar stability and well-performed drug loading and release are two conflicting factors for unimolecular micelles as an ideal drug delivery system. Achieving the formation of unimolecular micelles with short hydrophilic blocks is a challenging and promising approach to solve this bottleneck and limitation of current unimolecular micelle systems. In this work, dissipative particle dynamics (DPD) simulation is used to study the synergetic effect of crosslinking and electrostatic repulsion on stability of unimolecular micelles and to analyze the micro-mechanism and factors influencing this synergetic stabilization strategy. The strategy can generate unimolecular micelles with extremely high stability for various supramolecular polymers with short hydrophilic chains. Protonation of DEAEMA blocks leads to a large improvement in micellar hydrophilicity. The protonated middle layer further shrinks through crosslinking to produce the largest charge density, enlarging the electrostatic repulsion between colloidal particles. Additionally, the crosslinking and protonation treatment maximizes the extension degree of hydrophilic EO segments due to the increasing steric hindrance and poor compatibility between DEAHEMA and EO blocks. In this study, the relation between shrinkage degree of hydrophobic cores and stability of unimolecular micelles is first reported. The above-mentioned transition of micellar structures and properties results in the maximum degree of core shrinkage (Rg of MMA blocks) corresponding to the high stability of unimolecular micelles. Further study shows that the increasing cyclization degree, the mode of end cyclization, and the crosslinking and electrostatic repulsion of the middle layer all exert favorable effects on the stability of unimolecular micelles due to controlled shrinkage of hydrophobic cores.
Collapse
Affiliation(s)
- Jianchang Xu
- Guangdong Provincial Key Lab of Green Chemical Product Technology, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China.
| | - Jing Zhang
- Guangdong Provincial Key Lab of Green Chemical Product Technology, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China.
| | - Di Xiong
- School of Chemical Engineering, Xiangtan University, Xiangtan 411105, China
| | - Wenjing Lin
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China
| | - Liyang Wen
- Guangdong Provincial Key Lab of Green Chemical Product Technology, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China.
| | - Lijuan Zhang
- Guangdong Provincial Key Lab of Green Chemical Product Technology, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China.
| |
Collapse
|
34
|
Gong YH, Shu M, Xie JH, Zhang C, Cao Z, Jiang ZZ, Liu J. Enzymatic synthesis of PEG–poly(amine-co-thioether esters) as highly efficient pH and ROS dual-responsive nanocarriers for anticancer drug delivery. J Mater Chem B 2019; 7:651-664. [PMID: 32254798 DOI: 10.1039/c8tb02882f] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Novel multifunctional drug nanocarriers with pH and ROS dual-responsibilities were developed using enzymatically synthesized materials.
Collapse
Affiliation(s)
- Yi-hong Gong
- School of Biomedical Engineering
- Sun Yat-sen University
- Guangzhou
- China
| | - Man Shu
- School of Biomedical Engineering
- Sun Yat-sen University
- Guangzhou
- China
| | - Jian-hua Xie
- School of Biomedical Engineering
- Sun Yat-sen University
- Guangzhou
- China
| | - Chao Zhang
- School of Biomedical Engineering
- Sun Yat-sen University
- Guangzhou
- China
| | - Zhong Cao
- School of Biomedical Engineering
- Sun Yat-sen University
- Guangzhou
- China
| | - Zhao-zhong Jiang
- Department of Biomedical Engineering
- Integrated Science and Technology Center
- Yale University
- West Haven
- USA
| | - Jie Liu
- School of Biomedical Engineering
- Sun Yat-sen University
- Guangzhou
- China
| |
Collapse
|
35
|
Pandey B, Patil NG, Bhosle GS, Ambade AV, Gupta SS. Amphiphilic Glycopolypeptide Star Copolymer-Based Cross-Linked Nanocarriers for Targeted and Dual-Stimuli-Responsive Drug Delivery. Bioconjug Chem 2018; 30:633-646. [DOI: 10.1021/acs.bioconjchem.8b00831] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Bhawana Pandey
- Academy of Scientific and Innovative Research, (AcSIR), New Delhi 110025, India
| | - Naganath G. Patil
- Academy of Scientific and Innovative Research, (AcSIR), New Delhi 110025, India
| | - Govind S. Bhosle
- Academy of Scientific and Innovative Research, (AcSIR), New Delhi 110025, India
| | - Ashootosh V. Ambade
- Academy of Scientific and Innovative Research, (AcSIR), New Delhi 110025, India
| | - Sayam Sen Gupta
- Department of Chemical Sciences, Indian Institute of Science Education and Research, Mohanpur, Kolkata 741246, India
| |
Collapse
|
36
|
|
37
|
Self-assembled amphiphilic chitosan nanoparticles for quercetin delivery to breast cancer cells. Eur J Pharm Biopharm 2018; 131:203-210. [DOI: 10.1016/j.ejpb.2018.08.009] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2018] [Revised: 07/05/2018] [Accepted: 08/22/2018] [Indexed: 01/25/2023]
|
38
|
Asghar S, Minhas MU, Ahmad M, Khan KU, Sohail M, Khalid I. Hydrophobic-hydrophilic cross-linked matrices for controlled release formulation of Highly water-soluble drug venlafaxine: Synthesis and evaluation studies. ADVANCES IN POLYMER TECHNOLOGY 2018. [DOI: 10.1002/adv.22085] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Saima Asghar
- Faculty of Pharmacy and Alternative Medicine; The Islamia University of Bahawalpur; Bahawalpur Punjab Pakistan
| | - Muhammad Usman Minhas
- Faculty of Pharmacy and Alternative Medicine; The Islamia University of Bahawalpur; Bahawalpur Punjab Pakistan
| | - Mahmood Ahmad
- Faculty of Pharmacy and Alternative Medicine; The Islamia University of Bahawalpur; Bahawalpur Punjab Pakistan
| | - Kifayat Ullah Khan
- Faculty of Pharmacy and Alternative Medicine; The Islamia University of Bahawalpur; Bahawalpur Punjab Pakistan
| | - Muhammad Sohail
- Department of Pharmacy; COMSATS Institute of Information and Technology; Abbottabad KPK Pakistan
| | - Ikrima Khalid
- Faculty of Pharmaceutical Sciences; GC University Faisalabad; Faisalabad Punjab Pakistan
| |
Collapse
|
39
|
Cyphert EL, von Recum HA, Yamato M, Nakayama M. Surface sulfonamide modification of poly(N-isopropylacrylamide)-based block copolymer micelles to alter pH and temperature responsive properties for controlled intracellular uptake. J Biomed Mater Res A 2018; 106:1552-1560. [PMID: 29396906 DOI: 10.1002/jbm.a.36356] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2017] [Revised: 01/20/2018] [Accepted: 01/24/2018] [Indexed: 11/11/2022]
Abstract
Two different surface sulfonamide-functionalized poly(N-isopropylacrylamide)-based polymeric micelles were designed as pH-/temperature-responsive vehicles. Both sulfadimethoxine- and sulfamethazine-surface functionalized micelles were characterized to determine physicochemical properties, hydrodynamic diameters, zeta potentials, temperature-dependent size changes, and lower critical solution temperatures (LCST) in both pH 7.4 and 6.8 solutions (simulating both physiological and mild low pH conditions), and tested in the incorporation of a proof-of-concept hydrophobic antiproliferative drug, paclitaxel. Cellular uptake studies were conducted using bovine carotid endothelial cells and fluorescently labeled micelles to evaluate if there was enhanced cellular uptake of the micelles in a low pH environment. Both variations of micelles showed enhanced intracellular uptake under mildly acidic (pH 6.8) conditions at temperatures slightly above their LCST and minimal uptake at physiological (pH 7.4) conditions. Due to the less negative zeta potential of the sulfamethazine-surface micelles compared to sulfadimethoxine-surface micelles, and the proximity of their LCST to physiological temperature (37°C), the sulfamethazine variation was deemed more amenable for clinically relevant temperature and pH-stimulated applications. Nevertheless, we believe both polymeric micelle variations have the capacity to be implemented as an intracellular drug or gene delivery system in response to mildly acidic conditions. © 2018 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 106A: 1552-1560, 2018.
Collapse
Affiliation(s)
- Erika L Cyphert
- Department of Biomedical Engineering, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106
| | - Horst A von Recum
- Department of Biomedical Engineering, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106
| | - Masayuki Yamato
- Institute of Advanced Biomedical Engineering and Science, Tokyo Women's Medical University (TWIns), 8-1 Kawada-cho, Shinjuku, Tokyo 162-8666, Japan
| | - Masamichi Nakayama
- Institute of Advanced Biomedical Engineering and Science, Tokyo Women's Medical University (TWIns), 8-1 Kawada-cho, Shinjuku, Tokyo 162-8666, Japan
| |
Collapse
|
40
|
Zhang L, Wu L, Shi G, Sang X, Ni C. Studies on the preparation and controlled release of redox/pH-responsive zwitterionic nanoparticles based on poly-L-glutamic acid and cystamine. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2018; 29:646-662. [DOI: 10.1080/09205063.2018.1433108] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Liping Zhang
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi, China
| | - Luyan Wu
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi, China
| | - Gang Shi
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi, China
| | - Xinxin Sang
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi, China
| | - Caihua Ni
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi, China
| |
Collapse
|
41
|
Cao H, Chen C, Xie D, Chen X, Wang P, Wang Y, Song H, Wang W. A hyperbranched amphiphilic acetal polymer for pH-sensitive drug delivery. Polym Chem 2018. [DOI: 10.1039/c7py01739a] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
In this study, a novel hyperbranched amphiphilic block copolymer was synthesized using deactivation-enhanced atom transfer radical polymerization (DE-ATRP) for smart drug delivery.
Collapse
Affiliation(s)
- Hongliang Cao
- Key Laboratory for Ultrafine Materials of Ministry of Education
- and Shanghai Key Laboratory of Advanced Polymeric Materials
- School of Materials Science and Engineering
- East China University of Science and Technology
- Shanghai 200237
| | - Chao Chen
- School of Biotechnology and State Key Laboratory of Bioreactor Engineering
- Biomedical Nanotechnology Center
- East China University of Science and Technology
- Shanghai
- P. R. China
| | - Debiao Xie
- Key Laboratory for Ultrafine Materials of Ministry of Education
- and Shanghai Key Laboratory of Advanced Polymeric Materials
- School of Materials Science and Engineering
- East China University of Science and Technology
- Shanghai 200237
| | - Xin Chen
- Key Laboratory for Ultrafine Materials of Ministry of Education
- and Shanghai Key Laboratory of Advanced Polymeric Materials
- School of Materials Science and Engineering
- East China University of Science and Technology
- Shanghai 200237
| | - Ping Wang
- School of Biotechnology and State Key Laboratory of Bioreactor Engineering
- Biomedical Nanotechnology Center
- East China University of Science and Technology
- Shanghai
- P. R. China
| | - Yibing Wang
- School of Biotechnology and State Key Laboratory of Bioreactor Engineering
- Biomedical Nanotechnology Center
- East China University of Science and Technology
- Shanghai
- P. R. China
| | - Huajie Song
- Key Laboratory for Ultrafine Materials of Ministry of Education
- and Shanghai Key Laboratory of Advanced Polymeric Materials
- School of Materials Science and Engineering
- East China University of Science and Technology
- Shanghai 200237
| | - Wenxin Wang
- The Charles Institute of Dermatology
- School of Medicine and Medical Science
- University College of Dublin
- Dublin
- Ireland
| |
Collapse
|
42
|
Pan X, Fantin M, Yuan F, Matyjaszewski K. Externally controlled atom transfer radical polymerization. Chem Soc Rev 2018; 47:5457-5490. [DOI: 10.1039/c8cs00259b] [Citation(s) in RCA: 211] [Impact Index Per Article: 35.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
ATRP can be externally controlled by electrical current, light, mechanical forces and various chemical reducing agents. The mechanistic aspects and preparation of polymers with complex functional architectures and their applications are critically reviewed.
Collapse
Affiliation(s)
- Xiangcheng Pan
- State Key Laboratory of Molecular Engineering of Polymers
- Department of Macromolecular Science
- Fudan University
- Shanghai 200433
- China
| | - Marco Fantin
- Department of Chemistry
- Carnegie Mellon University
- Pittsburgh
- USA
| | - Fang Yuan
- State Key Laboratory of Molecular Engineering of Polymers
- Department of Macromolecular Science
- Fudan University
- Shanghai 200433
- China
| | | |
Collapse
|
43
|
Jazani AM, Oh JK. Dual Location, Dual Acidic pH/Reduction-Responsive Degradable Block Copolymer: Synthesis and Investigation of Ketal Linkage Instability under ATRP Conditions. Macromolecules 2017. [DOI: 10.1021/acs.macromol.7b02070] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Arman Moini Jazani
- Department of Chemistry and
Biochemistry, Concordia University, Montreal, Quebec, Canada H4B 1R6
| | - Jung Kwon Oh
- Department of Chemistry and
Biochemistry, Concordia University, Montreal, Quebec, Canada H4B 1R6
| |
Collapse
|
44
|
Zhao D, Ma S, Yi X, Cheng S, Zhuo R, Li F. Reversible core-crosslinked nanocarriers with pH-modulated targeting and redox-controlled drug release for overcoming drug resistance. J Mater Chem B 2017; 5:8399-8407. [PMID: 32370419 DOI: 10.1039/c7tb01504f] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Herein, a pH and redox dual-sensitive core-crosslinked targeting nanocarrier was prepared and used for co-delivery of doxorubicin (DOX) and tariquidar (TQR). The nanocarrier not only had excellent stability but also prevented the leakage of the drug in the normal physiological environment efficiently. Meanwhile, the targeting function of nanocarriers could also be suppressed in the normal physiological environment, protecting nanocarriers from being captured by RAW264.7 cells. Under mild acidic conditions, the targeting function was regained, leading to an effective tumor cell uptake of the nanocarrier. Furthermore, reduction-responsive drug release would occur in the cytoplasm due to the collapse of the reduction-sensitive crosslinked structure in the nanocarrier. By means of ligand-receptor mediated endocytosis and TQR-mediated glycoprotein (P-gp) inhibition, the IC50 value of DOX to MCF-7/ADR cells reduced from more than 100 μg mL-1 to 8.55 μg mL-1, exhibiting great potential in overcoming drug resistance.
Collapse
Affiliation(s)
- Dan Zhao
- Key Laboratory of Biomedical Polymers of Ministry of Education & College of Chemistry & Molecular Science, Wuhan University, Wuhan 430072, China.
| | - Shujie Ma
- Key Laboratory of Biomedical Polymers of Ministry of Education & College of Chemistry & Molecular Science, Wuhan University, Wuhan 430072, China.
| | - Xiaoqing Yi
- Key Laboratory of Biomedical Polymers of Ministry of Education & College of Chemistry & Molecular Science, Wuhan University, Wuhan 430072, China.
| | - Sixue Cheng
- Key Laboratory of Biomedical Polymers of Ministry of Education & College of Chemistry & Molecular Science, Wuhan University, Wuhan 430072, China.
| | - Renxi Zhuo
- Key Laboratory of Biomedical Polymers of Ministry of Education & College of Chemistry & Molecular Science, Wuhan University, Wuhan 430072, China.
| | - Feng Li
- Key Laboratory of Biomedical Polymers of Ministry of Education & College of Chemistry & Molecular Science, Wuhan University, Wuhan 430072, China.
| |
Collapse
|
45
|
Cong Z, Shi Y, Wang Y, Wang Y, Niu J, Chen N, Xue H. A novel controlled drug delivery system based on alginate hydrogel/chitosan micelle composites. Int J Biol Macromol 2017; 107:855-864. [PMID: 28935541 DOI: 10.1016/j.ijbiomac.2017.09.065] [Citation(s) in RCA: 63] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2017] [Revised: 09/10/2017] [Accepted: 09/17/2017] [Indexed: 12/13/2022]
Abstract
In this study, we present a novel cross-linked unimolecular micelle based on chitosan. For controlling drug delivery via oral administration, emodin (EMO) encapsulated micelles were loaded into sodium alginate hydrogel matrix to construct the pH-sensitive hydrogel/micelle composites. The optimized formulation of micelle that consists of 8.06% CaCl2, 1.71% chitosan and 26.52% β-GP was obtained by the combination of Box-Behnken experimental design and response surface methodology. The morphological analysis showed that the micelles exhibited a smaller diameter of about 80nm in aqueous solution, but dilated to 100-200nm in hydrogel owing to the formation of polyelectrolyte complexes. The physical characteristics in simulated digestive fluids were investigated, demonstrating that the ratio of hydrogel to micelle distinctly affected swelling, degradation and in vitro drug release behaviors. The hydrogel/micelle (1:1) exhibited a sustained-release profile, while hydrogel/micelle (3:1) exhibited a colon-specific profile. Their corresponding release mechanisms revealed that the release of drug from these two formulations followed a complex process, in which several mechanisms were involved or occurred simultaneously. These results demonstrated that the pH-sensitive hydrogel/micelle composites constructed with biocompatible materials can be a promising sustained-release or site-specific drug delivery system for instable or hydrophobic drugs.
Collapse
Affiliation(s)
- Zhaotong Cong
- School of Pharmacy, Lanzhou University, 199 Donggang West Road, Lanzhou 730000, China
| | - Yanbin Shi
- School of Pharmacy, Lanzhou University, 199 Donggang West Road, Lanzhou 730000, China.
| | - Yang Wang
- Frontage Laboratories Inc., 700 Pennsylvania Dr, Exton, PA 19341, USA
| | - Yanhong Wang
- School of Pharmacy, Lanzhou University, 199 Donggang West Road, Lanzhou 730000, China
| | - Jing'e Niu
- School of Pharmacy, Lanzhou University, 199 Donggang West Road, Lanzhou 730000, China
| | - Nana Chen
- School of Pharmacy, Lanzhou University, 199 Donggang West Road, Lanzhou 730000, China
| | - Haoyue Xue
- School of Pharmacy, Lanzhou University, 199 Donggang West Road, Lanzhou 730000, China
| |
Collapse
|