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Zhang Z, Yin C, Song X, Liu X, Zhong C, Zheng J, Ni Y, Shen R, Guo Y, Li X, Lin C, Zhang Y, Hu G. A self-fused peptide-loaded hydrogel with injectability and tissue-adhesiveness for preventing postoperative peritoneal adhesions. Mater Today Bio 2024; 28:101205. [PMID: 39221222 PMCID: PMC11364900 DOI: 10.1016/j.mtbio.2024.101205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2024] [Revised: 08/05/2024] [Accepted: 08/13/2024] [Indexed: 09/04/2024] Open
Abstract
Peritoneal adhesions commonly occur following abdominal or pelvic surgery and can cause serious complications. Currently, physical barriers are the primary approach used in clinical practice to prevent adhesion, although their effectiveness is frequently inadequate. In this study, we developed an injectable peptide-loaded hydrogel with multiple functions, including self-fusion, tissue-adhesiveness, anti-inflammation, anti-cell adhesion and anti-angiogenesis. To assess the effectiveness of these hydrogels, which are stabilized by dynamic imine bonds and acetal connections, in preventing postoperative abdominal adhesions, we utilized both a rat abdominal adhesion model and a rat model simulating repeated-injury adhesions. In comparison to the commercially available HA hydrogel, as-prepared hydrogels exhibited significant reductions in inflammation, fibrosis, and angiogenesis, leading to an obvious decrease in peritoneal adhesions. Moreover, this peptide-loaded hydrogel demonstrated an ideal degradation time, maintaining an in vivo viability for about 10 days. We believe this peptide-loaded hydrogel presents a promising solution for the challenging clinical issue of postoperative abdominal adhesions.
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Affiliation(s)
- Zequn Zhang
- Department of Gastrointestinal Surgery, The Third Xiangya Hospital of Central South University, Changsha, 410013, China
- Department of General Surgery, The Second Xiangya Hospital of Central South University, Changsha, 410011, China
| | - Chao Yin
- Hunan Provincial Key Laboratory of Micro & Nano Materials Interface Science, College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, China
- College of Pharmacy, Xinjiang Medical University, Urumqi, 830011, China
| | - Xianwen Song
- Hunan Provincial Key Laboratory of Micro & Nano Materials Interface Science, College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, China
| | - Xi Liu
- Department of Gastrointestinal Surgery, The Third Xiangya Hospital of Central South University, Changsha, 410013, China
| | - Chonglei Zhong
- Department of Gastrointestinal Surgery, The Third Xiangya Hospital of Central South University, Changsha, 410013, China
| | - Jun Zheng
- Hunan Provincial Key Laboratory of Micro & Nano Materials Interface Science, College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, China
| | - Yaqiong Ni
- Hunan Provincial Key Laboratory of Micro & Nano Materials Interface Science, College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, China
| | - Rujuan Shen
- State Key Laboratory of Powder Metallurgy, Central South University, Changsha, 410083, China
| | - Yihang Guo
- Department of Gastrointestinal Surgery, The Third Xiangya Hospital of Central South University, Changsha, 410013, China
| | - Xiaorong Li
- Department of Gastrointestinal Surgery, The Third Xiangya Hospital of Central South University, Changsha, 410013, China
| | - Changwei Lin
- Department of Gastrointestinal Surgery, The Third Xiangya Hospital of Central South University, Changsha, 410013, China
| | - Yi Zhang
- Hunan Provincial Key Laboratory of Micro & Nano Materials Interface Science, College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, China
- National Engineering Research Center for Advanced Polymer Processing Technology, Zhengzhou University, Zhengzhou, 450002, China
| | - Gui Hu
- Department of Gastrointestinal Surgery, The Third Xiangya Hospital of Central South University, Changsha, 410013, China
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Das AC, Nichols JM, Crelli CV, Liu L, Vichare R, Pham HV, Gaffney CM, Cherry FR, Grace PM, Shepherd AJ, Janjic JM. Injectable, reversibly thermoresponsive captopril-laden hydrogel for the local treatment of sensory loss in diabetic neuropathy. Sci Rep 2024; 14:18978. [PMID: 39152212 PMCID: PMC11329637 DOI: 10.1038/s41598-024-69437-w] [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: 04/27/2024] [Accepted: 08/05/2024] [Indexed: 08/19/2024] Open
Abstract
A major and irreversible complication of diabetes is diabetic peripheral neuropathy (DPN), which can lead to significant disability and decreased quality of life. Prior work demonstrates the peptide hormone Angiotensin II (Ang II) is released locally in neuropathy and drives inflammation and impaired endoneurial blood flow. Therefore, we proposed that by utilizing a local thermoresponsive hydrogel injection, we could deliver inhibitors of angiotensin-converting enzyme (ACE) to suppress Ang II production and reduce nerve dysfunction in DPN through local drug release. The ACE inhibitor captopril was encapsulated into a micelle, which was then embedded into a reversibly thermoresponsive pluronics-based hydrogel matrix. Drug-free and captopril-loaded hydrogels demonstrated excellent product stability and sterility. Rheology testing confirmed sol properties with low viscosity at ambient temperature and increased viscosity and gelation at 37 °C. Captopril-loaded hydrogels significantly inhibited Ang II production in comparison to drug-free hydrogels. DPN mice treated with captopril-loaded hydrogels displayed normalized mechanical sensitivity and reduced inflammation, without side-effects associated with systemic exposure. Our data demonstrate the feasibility of repurposing ACE inhibitors as locally delivered anti-inflammatories for the treatment of sensory deficits in DPN. To the best of our knowledge, this is the first example of a locally delivered ACE inhibitor for the treatment of DPN.
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Affiliation(s)
- Amit Chandra Das
- School of Pharmacy and Graduate School of Pharmaceutical Sciences, Duquesne University, 600 Forbes Ave., Pittsburgh, PA, 15282, USA
| | - James M Nichols
- Department of Symptom Research, Division of Internal Medicine, The University of Texas MD Anderson Cancer Center, 6565 MD Anderson Blvd., Houston, TX, 77030, USA
| | - Caitlin V Crelli
- School of Pharmacy and Graduate School of Pharmaceutical Sciences, Duquesne University, 600 Forbes Ave., Pittsburgh, PA, 15282, USA
| | - Lu Liu
- School of Pharmacy and Graduate School of Pharmaceutical Sciences, Duquesne University, 600 Forbes Ave., Pittsburgh, PA, 15282, USA
| | - Riddhi Vichare
- School of Pharmacy and Graduate School of Pharmaceutical Sciences, Duquesne University, 600 Forbes Ave., Pittsburgh, PA, 15282, USA
| | - Hoang Vu Pham
- Department of Symptom Research, Division of Internal Medicine, The University of Texas MD Anderson Cancer Center, 6565 MD Anderson Blvd., Houston, TX, 77030, USA
| | - Caitlyn M Gaffney
- Department of Symptom Research, Division of Internal Medicine, The University of Texas MD Anderson Cancer Center, 6565 MD Anderson Blvd., Houston, TX, 77030, USA
| | - Fisher R Cherry
- Department of Symptom Research, Division of Internal Medicine, The University of Texas MD Anderson Cancer Center, 6565 MD Anderson Blvd., Houston, TX, 77030, USA
| | - Peter M Grace
- Department of Symptom Research, Division of Internal Medicine, The University of Texas MD Anderson Cancer Center, 6565 MD Anderson Blvd., Houston, TX, 77030, USA
| | - Andrew J Shepherd
- Department of Symptom Research, Division of Internal Medicine, The University of Texas MD Anderson Cancer Center, 6565 MD Anderson Blvd., Houston, TX, 77030, USA.
| | - Jelena M Janjic
- School of Pharmacy and Graduate School of Pharmaceutical Sciences, Duquesne University, 600 Forbes Ave., Pittsburgh, PA, 15282, USA.
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Alzhrani RF, Xu H, Zhang Y, Maniruzzaman M, Cui Z. Development of novel 3D printable inks for protein delivery. Int J Pharm 2024; 659:124277. [PMID: 38802027 DOI: 10.1016/j.ijpharm.2024.124277] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Revised: 05/12/2024] [Accepted: 05/24/2024] [Indexed: 05/29/2024]
Abstract
The application of 3D printing technology in the delivery of macromolecules, such as proteins and enzymes, is limited by the lack of suitable inks. In this study, we report the development of novel inks for 3D printing of constructs containing proteins while maintaining the activity of the proteins during and after printing. Different ink formulations containing Pluronic F-127 (20-35 %, w/v), trehalose (2-10 %, w/v) or mannitol, poly (ethylene glycol) diacrylate (PEGDA) (0 or 10 %, w/w), and diphenyl(2,4,6-trimethylbenzoyl) phosphine oxide (TPO, 0 or 0.2 mg/mL) were prepared for 3D-microextrusion printing. The F2 formulation that contained β-galactosidase (β-gal) as a model enzyme, Pluronic F-127 (30 %), and trehalose (10 %) demonstrated the desired viscosity, printability, and dose flexibility. The shear-thinning property of the F2 formulation enabled the printing of β-gal containing constructs with a good peak force during extrusion. After 3D printing, the enzymatic activity of the β-gal in the constructs was maintained for an extended period, depending on the construct design and storage conditions. For instance, there was a 50 % reduction in β-gal activity in the two-layer constructs, but only a 20 % reduction in the four-layer construct (i.e., 54.5 ± 1.2 % and 82.7 ± 9.9 %, respectively), after 4 days of storage. The β-gal activity in constructs printed from the F2 formulation was maintained for up to 20 days when stored in sealed bags at room temperatures (21 ± 2 °C), but not when stored unsealed in the same conditions (e.g., ∼60 % activity loss within 7 days). The β-gal from constructs printed from F2 started to release within 5 min and reached 100 % after 20 min. With the design flexibility offered by the 3D printing, the β-gal release from the constructs was delayed to 3 h by printing a backing layer of β-gal-free F5 ink on the constructs printed from the F2 ink. Finally, ovalbumin as an alternative protein was also incorporated in similar ink compositions. Ovalbumin exhibited a release profile like that of the β-gal, and the release can also be modified with different shape design and/or ink composition. In conclusion, ink formulations that possess desirable properties for 3D printing of protein-containing constructs while maintaining the protein activity during and after printing were developed.
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Affiliation(s)
- Riyad F Alzhrani
- The University of Texas at Austin, College of Pharmacy, Division of Molecular Pharmaceutics and Drug Delivery, Austin, TX 78712, United States; Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Haiyue Xu
- The University of Texas at Austin, College of Pharmacy, Division of Molecular Pharmaceutics and Drug Delivery, Austin, TX 78712, United States
| | - Yu Zhang
- The University of Texas at Austin, College of Pharmacy, Division of Molecular Pharmaceutics and Drug Delivery, Austin, TX 78712, United States; Pharmaceutical Engineering and 3D Printing (PharmE3D) Lab, Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS 38677, United States
| | - Mohammed Maniruzzaman
- The University of Texas at Austin, College of Pharmacy, Division of Molecular Pharmaceutics and Drug Delivery, Austin, TX 78712, United States; Pharmaceutical Engineering and 3D Printing (PharmE3D) Lab, Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS 38677, United States.
| | - Zhengrong Cui
- The University of Texas at Austin, College of Pharmacy, Division of Molecular Pharmaceutics and Drug Delivery, Austin, TX 78712, United States.
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Ge R, Chen JL, Zheng F, Yin SM, Dai M, Wang YM, Chen Q, Li YH, Zhu GQ, Chen AD. Asprosin promotes vascular inflammation via TLR4-NFκB-mediated NLRP3 inflammasome activation in hypertension. Heliyon 2024; 10:e31659. [PMID: 38841464 PMCID: PMC11152944 DOI: 10.1016/j.heliyon.2024.e31659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2023] [Revised: 05/19/2024] [Accepted: 05/20/2024] [Indexed: 06/07/2024] Open
Abstract
Objective and design Mild vascular inflammation promotes the pathogenesis of hypertension. Asprosin, a newly discovered adipokine, is closely associated with metabolic diseases. We hypothesized that asprosin might led to vascular inflammation in hypertension via NLRP3 inflammasome formation. This study shows the importance of asprosin in the vascular inflammation of hypertension. Methods Primary vascular smooth muscle cells (VSMCs) were obtained from the aorta of animals, including spontaneously hypertensive rats (SHR), Wistar-Kyoto rats (WKY), NLRP3-/- and wild-type mice. Studies were performed in VSMCs in vitro, as well as WKY and SHR in vivo. Results Asprosin expressions were up-regulated in VSMCs and media of arteries in SHR. Asprosin overexpression promoted NLRP3 inflammasome activation via Toll-like receptor 4 (TLR4), accompanied with activation of NFκB signaling pathway in VSMCs. Exogenous asprosin protein showed similar roles in promoting NLRP3 inflammasome activation. Knockdown of asprosin restrained NLRP3 inflammasome and p65-NFκB activation in VSMCs of SHR. NLRP3 inhibitor MCC950 or NFκB inhibitor BAY11-7082 attenuated asprosin-caused VSMC proliferation and migration. Asprosin-induced interleukin-1β production, proliferation and migration were attenuated in NLRP3-/- VSMCs. Local asprosin knockdown in common carotid artery of SHR attenuated inflammation and vascular remodeling. Conclusions Asprosin promoted NLRP3 inflammasome activation in VSMCs by TLR4-NFκB pathway, and thereby stimulates VSMCs proliferation, migration, and vascular remodeling of SHR.
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Affiliation(s)
- Rui Ge
- Key Laboratory of Targeted Intervention of Cardiovascular Disease, Collaborative Innovation Center for Cardiovascular Disease Translational Medicine, and Department of Physiology, Nanjing Medical University, Nanjing, Jiangsu, 211166, China
| | - Jun-Liu Chen
- Key Laboratory of Targeted Intervention of Cardiovascular Disease, Collaborative Innovation Center for Cardiovascular Disease Translational Medicine, and Department of Physiology, Nanjing Medical University, Nanjing, Jiangsu, 211166, China
| | - Fen Zheng
- Key Laboratory of Targeted Intervention of Cardiovascular Disease, Collaborative Innovation Center for Cardiovascular Disease Translational Medicine, and Department of Physiology, Nanjing Medical University, Nanjing, Jiangsu, 211166, China
| | - Shu-Min Yin
- Key Laboratory of Targeted Intervention of Cardiovascular Disease, Collaborative Innovation Center for Cardiovascular Disease Translational Medicine, and Department of Physiology, Nanjing Medical University, Nanjing, Jiangsu, 211166, China
| | - Min Dai
- Key Laboratory of Targeted Intervention of Cardiovascular Disease, Collaborative Innovation Center for Cardiovascular Disease Translational Medicine, and Department of Physiology, Nanjing Medical University, Nanjing, Jiangsu, 211166, China
| | - Yi-Ming Wang
- Key Laboratory of Targeted Intervention of Cardiovascular Disease, Collaborative Innovation Center for Cardiovascular Disease Translational Medicine, and Department of Physiology, Nanjing Medical University, Nanjing, Jiangsu, 211166, China
| | - Qi Chen
- Department of Pathophysiology, Nanjing Medical University, Nanjing, Jiangsu, 211166, China
| | - Yue-Hua Li
- Department of Pathophysiology, Nanjing Medical University, Nanjing, Jiangsu, 211166, China
| | - Guo-Qing Zhu
- Key Laboratory of Targeted Intervention of Cardiovascular Disease, Collaborative Innovation Center for Cardiovascular Disease Translational Medicine, and Department of Physiology, Nanjing Medical University, Nanjing, Jiangsu, 211166, China
- Department of Pathophysiology, Nanjing Medical University, Nanjing, Jiangsu, 211166, China
| | - Ai-Dong Chen
- Key Laboratory of Targeted Intervention of Cardiovascular Disease, Collaborative Innovation Center for Cardiovascular Disease Translational Medicine, and Department of Physiology, Nanjing Medical University, Nanjing, Jiangsu, 211166, China
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Vidal L, Lopez-Garzon M, Venegas V, Vila I, Domínguez D, Rodas G, Marotta M. A Novel Tendon Injury Model, Induced by Collagenase Administration Combined with a Thermo-Responsive Hydrogel in Rats, Reproduces the Pathogenesis of Human Degenerative Tendinopathy. Int J Mol Sci 2024; 25:1868. [PMID: 38339145 PMCID: PMC10855568 DOI: 10.3390/ijms25031868] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Revised: 01/25/2024] [Accepted: 01/29/2024] [Indexed: 02/12/2024] Open
Abstract
Patellar tendinopathy is a common clinical problem, but its underlying pathophysiology remains poorly understood, primarily due to the absence of a representative experimental model. The most widely used method to generate such a model is collagenase injection, although this method possesses limitations. We developed an optimized rat model of patellar tendinopathy via the ultrasound-guided injection of collagenase mixed with a thermo-responsive Pluronic hydrogel into the patellar tendon of sixty male Wistar rats. All analyses were carried out at 3, 7, 14, 30, and 60 days post-injury. We confirmed that our rat model reproduced the pathophysiology observed in human patients through analyses of ultrasonography, histology, immunofluorescence, and biomechanical parameters. Tendons that were injured by the injection of the collagenase-Pluronic mixture exhibited a significant increase in the cross-sectional area (p < 0.01), a high degree of tissue disorganization and hypercellularity, significantly strong neovascularization (p < 0.01), important changes in the levels of types I and III collagen expression, and the organization and presence of intra-tendinous calcifications. Decreases in the maximum rupture force and stiffness were also observed. These results demonstrate that our model replicates the key features observed in human patellar tendinopathy. Collagenase is evenly distributed, as the Pluronic hydrogel prevents its leakage and thus, damage to surrounding tissues. Therefore, this model is valuable for testing new treatments for patellar tendinopathy.
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Affiliation(s)
- Laura Vidal
- Leitat Technological Center, Carrer de la Innovació 2, 08225 Terrassa, Spain
- Bioengineering, Cell Therapy and Surgery in Congenital Malformations Laboratory, Vall d’Hebron Institut de Recerca (VHIR), Universitat Autònoma de Barcelona (UAB), 08035 Barcelona, Spain
| | - Maria Lopez-Garzon
- Leitat Technological Center, Carrer de la Innovació 2, 08225 Terrassa, Spain
- Bioengineering, Cell Therapy and Surgery in Congenital Malformations Laboratory, Vall d’Hebron Institut de Recerca (VHIR), Universitat Autònoma de Barcelona (UAB), 08035 Barcelona, Spain
| | - Vanesa Venegas
- Leitat Technological Center, Carrer de la Innovació 2, 08225 Terrassa, Spain
- Bioengineering, Cell Therapy and Surgery in Congenital Malformations Laboratory, Vall d’Hebron Institut de Recerca (VHIR), Universitat Autònoma de Barcelona (UAB), 08035 Barcelona, Spain
| | - Ingrid Vila
- Leitat Technological Center, Carrer de la Innovació 2, 08225 Terrassa, Spain
- Bioengineering, Cell Therapy and Surgery in Congenital Malformations Laboratory, Vall d’Hebron Institut de Recerca (VHIR), Universitat Autònoma de Barcelona (UAB), 08035 Barcelona, Spain
| | - David Domínguez
- Medical Department of Futbol Club Barcelona (FIFA Medical Center of Excellence) and Barça Innovation, 08970 Sant Joan Despí, Spain
| | - Gil Rodas
- Leitat Technological Center, Carrer de la Innovació 2, 08225 Terrassa, Spain
- Medical Department of Futbol Club Barcelona (FIFA Medical Center of Excellence) and Barça Innovation, 08970 Sant Joan Despí, Spain
- Sports Medicine Unit, Hospital Clínic and Sant Joan de Déu, 08950 Barcelona, Spain
- Faculty of Medicine and Health Sciences, University of Barcelona, 08007 Barcelona, Spain
| | - Mario Marotta
- Leitat Technological Center, Carrer de la Innovació 2, 08225 Terrassa, Spain
- Bioengineering, Cell Therapy and Surgery in Congenital Malformations Laboratory, Vall d’Hebron Institut de Recerca (VHIR), Universitat Autònoma de Barcelona (UAB), 08035 Barcelona, Spain
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Shin MD, Jung E, Moreno‐Gonzalez MA, Ortega‐Rivera OA, Steinmetz NF. Pluronic F127 "nanoarmor" for stabilization of Cowpea mosaic virus immunotherapy. Bioeng Transl Med 2024; 9:e10574. [PMID: 38193118 PMCID: PMC10771553 DOI: 10.1002/btm2.10574] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Revised: 06/01/2023] [Accepted: 06/10/2023] [Indexed: 01/10/2024] Open
Abstract
Our lab demonstrated that intratumoral Cowpea mosaic virus (CPMV) is a potent antitumor immunotherapy when used as in situ vaccine. As we pave the way for human clinical translation, formulation chemistry needs to be optimized for long-term storage of the drug candidate. In this work, CPMV was nanoengineered with Pluronic F127 to realize liquid and gel formulations which mitigate structural changes and RNA release during long-term storage. We evaluated the CPMV-F127 formulations for their stability and biological activity through a combination of in vitro assays and efficacy in vivo using a B16F10 murine melanoma model. Results demonstrate that both F127 liquid and gel formulations preserve CPMV structure and function following extended periods of thermal incubation at 4°C, 25°C, and 37°C. Heat-incubated CPMV without formulation resulted in structural changes and inferior in vivo efficacy. In stark contrast, in vivo efficacy was preserved when CPMV was formulated and protected with the F127 "nanoarmor."
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Affiliation(s)
- Matthew D. Shin
- Department of NanoEngineeringUniversity of CaliforniaLa JollaCaliforniaUSA
- Center for Nano‐ImmunoEngineeringUniversity of CaliforniaLa JollaCaliforniaUSA
| | - Eunkyeong Jung
- Department of NanoEngineeringUniversity of CaliforniaLa JollaCaliforniaUSA
- Center for Nano‐ImmunoEngineeringUniversity of CaliforniaLa JollaCaliforniaUSA
| | - Miguel A. Moreno‐Gonzalez
- Department of NanoEngineeringUniversity of CaliforniaLa JollaCaliforniaUSA
- Center for Nano‐ImmunoEngineeringUniversity of CaliforniaLa JollaCaliforniaUSA
| | - Oscar A. Ortega‐Rivera
- Department of NanoEngineeringUniversity of CaliforniaLa JollaCaliforniaUSA
- Center for Nano‐ImmunoEngineeringUniversity of CaliforniaLa JollaCaliforniaUSA
| | - Nicole F. Steinmetz
- Department of NanoEngineeringUniversity of CaliforniaLa JollaCaliforniaUSA
- Center for Nano‐ImmunoEngineeringUniversity of CaliforniaLa JollaCaliforniaUSA
- Department of BioengineeringUniversity of CaliforniaLa JollaCaliforniaUSA
- Department of RadiologyUniversity of CaliforniaLa JollaCaliforniaUSA
- Moores Cancer CenterUniversity of CaliforniaLa JollaCaliforniaUSA
- Institute for Materials Discovery and Design, Department of NanoEngineeringUniversity of CaliforniaLa JollaCaliforniaUSA
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Balafouti A, Forys A, Trzebicka B, Gerardos AM, Pispas S. Anionic Hyperbranched Amphiphilic Polyelectrolytes as Nanocarriers for Antimicrobial Proteins and Peptides. MATERIALS (BASEL, SWITZERLAND) 2023; 16:7702. [PMID: 38138846 PMCID: PMC10745097 DOI: 10.3390/ma16247702] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2023] [Revised: 12/13/2023] [Accepted: 12/14/2023] [Indexed: 12/24/2023]
Abstract
This manuscript presents the synthesis of hyperbranched amphiphilic poly (lauryl methacrylate-co-tert-butyl methacrylate-co-methacrylic acid), H-P(LMA-co-tBMA-co-MAA) copolymers via reversible addition fragmentation chain transfer (RAFT) copolymerization of tBMA and LMA, and their post-polymerization modification to anionic amphiphilic polyelectrolytes. The focus is on investigating whether the combination of the hydrophobic characters of LMA and tBMA segments, as well as the polyelectrolyte and hydrophilic properties of MAA segments, both distributed within a unique hyperbranched polymer chain topology, would result in intriguing, branched copolymers with the potential to be applied in nanomedicine. Therefore, we studied the self-assembly behavior of these copolymers in aqueous media, as well as their ability to form complexes with cationic proteins, namely lysozyme (LYZ) and polymyxin (PMX). Various physicochemical characterization techniques, including size exclusion chromatography (SEC) and proton nuclear magnetic resonance (1H-NMR), verified the molecular characteristics of these well-defined copolymers, whereas light scattering and fluorescence spectroscopy techniques revealed promising nanoparticle (NP) self- and co-assembly properties of the copolymers in aqueous media.
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Affiliation(s)
- Anastasia Balafouti
- Theoretical and Physical Chemistry Institute, National Hellenic Research Foundation, 48 Vassileos Constantinou Ave., 11635 Athens, Greece; (A.B.); (A.M.G.)
- Department of Chemistry, National and Kapodistrian University of Athens (NKUA), 15784 Athens, Greece
| | - Aleksander Forys
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, 34 ul. M. Curie-Skłodowskiej, 41-819 Zabrze, Poland; (A.F.); (B.T.)
| | - Barbara Trzebicka
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, 34 ul. M. Curie-Skłodowskiej, 41-819 Zabrze, Poland; (A.F.); (B.T.)
| | - Angelica Maria Gerardos
- Theoretical and Physical Chemistry Institute, National Hellenic Research Foundation, 48 Vassileos Constantinou Ave., 11635 Athens, Greece; (A.B.); (A.M.G.)
- Department of Chemistry, National and Kapodistrian University of Athens (NKUA), 15784 Athens, Greece
| | - Stergios Pispas
- Theoretical and Physical Chemistry Institute, National Hellenic Research Foundation, 48 Vassileos Constantinou Ave., 11635 Athens, Greece; (A.B.); (A.M.G.)
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8
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Niloy KK, Lowe TL. Injectable systems for long-lasting insulin therapy. Adv Drug Deliv Rev 2023; 203:115121. [PMID: 37898336 DOI: 10.1016/j.addr.2023.115121] [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: 04/29/2023] [Revised: 10/20/2023] [Accepted: 10/25/2023] [Indexed: 10/30/2023]
Abstract
Insulin therapy is the mainstay to treat diabetes characterizedd by hyperglycemia. However, its short half-life of only 4-6 min limits its effectiveness in treating chronic diabetes. Advances in recombinant DNA technology and protein engineering have led to several insulin analogue products that have up to 42 h of glycemic control. However, these insulin analogues still require once- or twice-daily injections for optimal glycemic control and have poor patient compliance and adherence issues. To achieve insulin release for more than one day, different injectable delivery systems including microspheres, in situ forming depots, nanoparticles and composite systems have been developed. Several of these delivery systems have advanced to clinical trials for once-weekly insulin injection. This review comprehensively summarizes the developments of injectable insulin analogs and delivery systems covering the whole field of injectable long-lasting insulin technologies from prototype design, preclinical studies, clinical trials to marketed products for the treatment of diabetes.
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Affiliation(s)
- Kumar Kulldeep Niloy
- Department of Pharmaceutical Sciences, University of Tennessee Health Science Center, Memphis, TN 38163, USA; Department of Pharmaceutical Sciences, St. Jude Children's Research Hospital, Memphis, TN 38105, USA.
| | - Tao L Lowe
- Department of Pharmaceutical Sciences, University of Tennessee Health Science Center, Memphis, TN 38163, USA; Department of Oral and Maxillofacial Surgery, School of Dentistry, University of Maryland, Baltimore, MD 21201, USA; Fischell Department of Bioengineering, A. James Clark School of Engineering, University of Maryland, College Park, MD 20742, USA.
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Patel HS, Vyas BA, Tripathi S, Sharma RK. Design, Development, and Evaluation of SA-F127:TPGS Polymeric Mixed Micelles for Improved Delivery of Glipizide Drug: In-vitro, Ex-vivo, and In-vivo Investigations. AAPS PharmSciTech 2023; 24:213. [PMID: 37848728 DOI: 10.1208/s12249-023-02659-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Accepted: 09/13/2023] [Indexed: 10/19/2023] Open
Abstract
The anti-diabetic glipizide (GLN) drug has notable pharmaceutical advantages, but poor aqueous solubility restricts its wide applications. The present work was to develop a mixed polymeric micelle system composed of SA-F127 and TPGS to improve the water solubility and effective delivery of the GLN. First, we synthesized SA-F127 and confirmed it through FTIR, NMR, and GPC techniques. The GLN-PMM were fabricated with the thin-film technique and optimized with CCD design. The developed GLN-PMM was characterized using DLS, Zeta, TEM, Rheology, FTIR, DSC, and XRD measurements. The GLN-PMM manifested a spherical morphology with 67.86 nm particle size, a -3.85 mV zeta potential, and a 0.582±0.06 PDI value. The polymeric mixed micelles showed excellent compatibility with GLN and were amorphous in nature. NMR studies confirmed the encapsulation of GLN in the core of the mixed micelle. In addition, the GLN-PMM micelles were tested in vitro for cumulative drug release, ex vivo for permeation, and in vivo for anti-diabetic investigations. The GLN-PMM release profile in the various pH environments showed over 90% after 24 h, clearly indicating sustained release. The GLN-PMM micelles gave higher 88.86±3.39% GLN permeation from the goat intestine compared with free GLN. In-vivo anti-diabetic investigation proves the powerful anti-diabetic properties of GLN-PMM in comparison to the marketed formulation. These findings demonstrated that the polymeric mixed micelles of SA-F127 and TPGS could be a promising, effective, and environment-friendly approach for oral delivery of the GLN.
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Affiliation(s)
- Hemil S Patel
- Applied Chemistry Department, Faculty of Technology and Engineering, The Maharaja Sayajirao University of Baroda, Vadodara, 390001, Gujarat, India
| | - Bhavin A Vyas
- Department of Pharmacology and Pharmacy Practice, Maliba Pharmacy College, Uka Tarsadia University, Bardoli, 394350, Gujarat, India
| | - Subhash Tripathi
- Department of Chemistry, GLA University, Mathura, 281406, Uttar Pradesh, India
| | - Rakesh K Sharma
- Applied Chemistry Department, Faculty of Technology and Engineering, The Maharaja Sayajirao University of Baroda, Vadodara, 390001, Gujarat, India.
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10
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Ward CL, Cornejo MA, Peli Thanthri SH, Linz TH. A review of electrophoretic separations in temperature-responsive Pluronic thermal gels. Anal Chim Acta 2023; 1276:341613. [PMID: 37573098 DOI: 10.1016/j.aca.2023.341613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Revised: 07/10/2023] [Accepted: 07/11/2023] [Indexed: 08/14/2023]
Abstract
Gel electrophoresis is a ubiquitous bioanalytical technique used in research laboratories to validate protein and nucleic acid samples. Polyacrylamide and agarose have been the gold standard gel materials for decades, but an alternative class of polymer has emerged with potentially superior performance. Pluronic thermal gels are water-soluble polymers that possess the unique ability to undergo a change in viscosity in response to changing temperature. Thermal gels can reversibly convert between low-viscosity liquids and high-viscosity solid gels using temperature as an adjustable parameter. The properties of thermal gels provide unmatched flexibility as a dynamic separations matrix to measure analytes ranging from small molecules to cells. This review article describes the physical and chemical properties of Pluronic thermal gels to provide a fundamental overview of polymer behavior. The performance of thermal gels is then reviewed to highlight their applications as a gel matrix for electrokinetic separations in capillary, microfluidic, and slab gel formats. The use of dynamic temperature-responsive gels in bioanalytical separations is an underexplored area of research but one that holds exciting potential to achieve performance unattainable with conventional static polymers.
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Affiliation(s)
- Cassandra L Ward
- Department of Chemistry, Wayne State University, Detroit, MI, USA; Lumigen Instrument Center, Wayne State University, Detroit, MI, USA.
| | - Mario A Cornejo
- Department of Chemistry, Wayne State University, Detroit, MI, USA
| | | | - Thomas H Linz
- Department of Chemistry, Wayne State University, Detroit, MI, USA.
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11
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Sahandi Zangabad P, Abousalman Rezvani Z, Tong Z, Esser L, Vasani RB, Voelcker NH. Recent Advances in Formulations for Long-Acting Delivery of Therapeutic Peptides. ACS APPLIED BIO MATERIALS 2023; 6:3532-3554. [PMID: 37294445 DOI: 10.1021/acsabm.3c00193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Recent preclinical and clinical studies have focused on the active area of therapeutic peptides due to their high potency, selectivity, and specificity in treating a broad range of diseases. However, therapeutic peptides suffer from multiple disadvantages, such as limited oral bioavailability, short half-life, rapid clearance from the body, and susceptibility to physiological conditions (e.g., acidic pH and enzymolysis). Therefore, high peptide dosages and dose frequencies are required for effective patient treatment. Recent innovations in pharmaceutical formulations have substantially improved therapeutic peptide administration by providing the following advantages: long-acting delivery, precise dose administration, retention of biological activity, and improvement of patient compliance. This review discusses therapeutic peptides and challenges in their delivery and explores recent peptide delivery formulations, including micro/nanoparticles (based on lipids, polymers, porous silicon, silica, and stimuli-responsive materials), (stimuli-responsive) hydrogels, particle/hydrogel composites, and (natural or synthetic) scaffolds. This review further covers the applications of these formulations for prolonged delivery and sustained release of therapeutic peptides and their impact on peptide bioactivity, loading efficiency, and (in vitro/in vivo) release parameters.
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Affiliation(s)
- Parham Sahandi Zangabad
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutics Science, Monash University, Parkville Campus, Parkville, Victoria 3052, Australia
- Melbourne Centre for Nanofabrication, Victorian Node of the Australian National Fabrication Facility, Clayton, Victoria 3168, Australia
| | - Zahra Abousalman Rezvani
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutics Science, Monash University, Parkville Campus, Parkville, Victoria 3052, Australia
- Commonwealth Scientific and Industrial Research Organization (CSIRO), Clayton, Victoria 3168, Australia
| | - Ziqiu Tong
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutics Science, Monash University, Parkville Campus, Parkville, Victoria 3052, Australia
| | - Lars Esser
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutics Science, Monash University, Parkville Campus, Parkville, Victoria 3052, Australia
- Commonwealth Scientific and Industrial Research Organization (CSIRO), Clayton, Victoria 3168, Australia
| | - Roshan B Vasani
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutics Science, Monash University, Parkville Campus, Parkville, Victoria 3052, Australia
| | - Nicolas H Voelcker
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutics Science, Monash University, Parkville Campus, Parkville, Victoria 3052, Australia
- Melbourne Centre for Nanofabrication, Victorian Node of the Australian National Fabrication Facility, Clayton, Victoria 3168, Australia
- Department of Materials Science and Engineering, Monash University, Clayton, Victoria 3800, Australia
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12
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Basu M, Hassan P. Influence of temperature and organic acid on self-assembly behavior of Pluronic F127. J Mol Liq 2023. [DOI: 10.1016/j.molliq.2023.121630] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/17/2023]
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13
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Guo L, Xu J, Du B. Self-assembly of ABCBA Linear Pentablock Terpolymers. POLYM REV 2023. [DOI: 10.1080/15583724.2023.2178008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
Affiliation(s)
- Lei Guo
- State Key Laboratory of Motor Vehicle Biofuel Technology, Department of Polymer Science & Engineering, Zhejiang University, Hangzhou, China
| | - Junting Xu
- State Key Laboratory of Motor Vehicle Biofuel Technology, Department of Polymer Science & Engineering, Zhejiang University, Hangzhou, China
| | - Binyang Du
- State Key Laboratory of Motor Vehicle Biofuel Technology, Department of Polymer Science & Engineering, Zhejiang University, Hangzhou, China
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14
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Faris Taufeq FY, Habideen NH, Rao LN, Podder PK, Katas H. Potential Hemostatic and Wound Healing Effects of Thermoresponsive Wound Dressing Gel Loaded with Lignosus rhinocerotis and Punica granatum Extracts. Gels 2023; 9:48. [PMID: 36661814 PMCID: PMC9858555 DOI: 10.3390/gels9010048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Revised: 12/30/2022] [Accepted: 01/03/2023] [Indexed: 01/11/2023] Open
Abstract
Biologically active compounds in Lignosus rhinocerotis and Punica granatum are found to facilitate wound healing and exhibit hemostatic activity, making them a good combination as bioactives for wound dressings. This study, therefore, aimed to evaluate the potential of thermoresponsive gels loaded with L. rhinocerotis (HLRE) and P. granatum (PPE) extracts as dressings for wound treatment. The gels were prepared using Pluronic PF127 polymer and mixed with PEG 400 and/or starch prior to incorporation with both extracts (0.06 to 1 mg/mL). The gelation temperature (Tgel) at the skin temperature was achieved when Pluronic PF127 was mixed with 22% w/v PEG 400 and reduced to 25.7 ± 0.3-26.7 ± 1.2 °C after adding HLRE and PPE. The gels exhibited satisfactory hardness (2.02 ± 0.19-6.45 ± 0.53 N), cohesiveness (0.9 ± 0.07-2.28 ± 0.4 mJ), adhesiveness (5.07 ± 2.41-19.6 ± 1.1 mJ), and viscosity (0.15 ± 0.04-0.95 ± 0.03 Pa.s), suitable for wound dressings. The optimized gels displayed high thrombin activity and cell migration rate (wound closure of 74% ± 12-89% ± 2 within 24 h), demonstrating hemostatic and healing effects. The thermoresponsive gels demonstrated advantages to be used as dressings for treating acute and open wounds.
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Affiliation(s)
- Farha Yasmin Faris Taufeq
- Centre for Drug Delivery Technology, Faculty of Pharmacy, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, Kuala Lumpur 50300, Malaysia
| | - Nur Hamizah Habideen
- Centre for Drug Delivery Technology, Faculty of Pharmacy, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, Kuala Lumpur 50300, Malaysia
| | - Loageshwari Nagaswa Rao
- Centre for Drug Delivery Technology, Faculty of Pharmacy, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, Kuala Lumpur 50300, Malaysia
| | - Promit Kumar Podder
- Centre for Drug Delivery Technology, Faculty of Pharmacy, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, Kuala Lumpur 50300, Malaysia
| | - Haliza Katas
- Centre for Drug Delivery Technology, Faculty of Pharmacy, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, Kuala Lumpur 50300, Malaysia
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15
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Gabashvili AN, Chmelyuk NS, Sarkisova VA, Melnikov PA, Semkina AS, Nikitin AA, Abakumov MA. Myxococcus xanthus Encapsulin as a Promising Platform for Intracellular Protein Delivery. Int J Mol Sci 2022; 23:ijms232415591. [PMID: 36555233 PMCID: PMC9778880 DOI: 10.3390/ijms232415591] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 12/05/2022] [Accepted: 12/06/2022] [Indexed: 12/13/2022] Open
Abstract
Introducing a new genetically encoded material containing a photoactivatable label as a model cargo protein, based on Myxococcus xanthus (Mx) encapsulin system stably expressed in human 293T cells. Encapsulin from Mx is known to be a protein-based container for a ferritin-like cargo in its shell which could be replaced with an exogenous cargo protein, resulting in a modified encapsulin system. We replaced Mx natural cargo with a foreign photoactivatable mCherry (PAmCherry) fluorescent protein and isolated encapsulins, containing PAmCherry, from 293T cells. Isolated Mx encapsulin shells containing photoactivatable label can be internalized by macrophages, wherein the PAmCherry fluorescent signal remains clearly visible. We believe that a genetically encoded nanocarrier system obtained in this study, can be used as a platform for controllable delivery of protein/peptide therapeutics in vitro.
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Affiliation(s)
- Anna N. Gabashvili
- Laboratory “Biomedical Nanomaterials”, National University of Science and Technology “MISiS”, Leninskiy Avenue, 4, 119049 Moscow, Russia
| | - Nelly S. Chmelyuk
- Laboratory “Biomedical Nanomaterials”, National University of Science and Technology “MISiS”, Leninskiy Avenue, 4, 119049 Moscow, Russia
- Department of Medical Nanobiotechnology, Pirogov Russian National Research Medical University, Ostrovityanova Street, 1, 117997 Moscow, Russia
| | - Viktoria A. Sarkisova
- Biology Faculty, Lomonosov Moscow State University, Leninskiy Gory, 119234 Moscow, Russia
- Cell Proliferation Laboratory, Engelhardt Institute of Molecular Biology, Vavilova Street, 32, 119991 Moscow, Russia
| | - Pavel A. Melnikov
- Department of Basic and Applied Neurobiology, Serbsky National Medical Research Center for Psychiatry and Narcology, Kropotkinskiy Lane, 23, 119991 Moscow, Russia
| | - Alevtina S. Semkina
- Department of Medical Nanobiotechnology, Pirogov Russian National Research Medical University, Ostrovityanova Street, 1, 117997 Moscow, Russia
- Department of Basic and Applied Neurobiology, Serbsky National Medical Research Center for Psychiatry and Narcology, Kropotkinskiy Lane, 23, 119991 Moscow, Russia
| | - Aleksey A. Nikitin
- Laboratory “Biomedical Nanomaterials”, National University of Science and Technology “MISiS”, Leninskiy Avenue, 4, 119049 Moscow, Russia
| | - Maxim A. Abakumov
- Laboratory “Biomedical Nanomaterials”, National University of Science and Technology “MISiS”, Leninskiy Avenue, 4, 119049 Moscow, Russia
- Department of Medical Nanobiotechnology, Pirogov Russian National Research Medical University, Ostrovityanova Street, 1, 117997 Moscow, Russia
- Correspondence:
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16
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Thermoresponsive phase behavior and nanoscale self-assembly generation in normal and reverse Pluronics®. Colloid Polym Sci 2022. [DOI: 10.1007/s00396-022-05039-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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17
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Juang RS, Wang KS, Cheng YW, Wu WE, Lin YH, Jeng RJ, Huang LY, Yang MC, Liu SH, Liu TY. Intelligent and thermo-responsive Au-pluronic® F127 nanocapsules for Raman-enhancing detection of biomolecules. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 279:121475. [PMID: 35696969 DOI: 10.1016/j.saa.2022.121475] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2022] [Revised: 05/23/2022] [Accepted: 06/03/2022] [Indexed: 06/15/2023]
Abstract
Thermo-responsive Raman-enhanced nanocapsules were successfully fabricated by Pluronic® F127 (F127) decorated with gold nanoparticles (AuNPs) for surface-enhanced Raman scattering (SERS) detection of biomolecules. F127 nanocapsules changes from hydrophilicity (swelling) to hydrophobicity (de-swelling) when the temperature increases from 15 °C to 37 °C, owing to the lower critical solution temperature (LCST) of F127 is about 26.5 °C. The size of nanocapsules would be enormous shrinking from 160 nm to 20 nm, resulting in a significant decrease in the distance between AuNPs to enhance hot spot effect, which increases the sensitivity of SERS detection. Based on the thermo-sensitive behavior, the ratio of AuNPs and F127 would be manipulated to find the optimal SERS enhancement effect. SERS nanocapsules can rapidly detect biomolecules (adenine and R6G) with limit of detection (LOD) lower than 10-6 M. In addition, the relatively difficult to detect clinical samples, carboxyl-terminal parathyroid hormone fragments (C-PTH), can also be measured by the thermo-responsive SERS nanocapsules developed in this work. It is expected the biomolecules can be adsorbed at low temperature (15 °C), as well as collected and concentrated at high temperature (37 °C) for SERS detection, to increase the sensitivity and stability of SERS detection.
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Affiliation(s)
- Ruey-Shin Juang
- Department of Chemical and Materials Engineering, Chang Gung University, Guishan, Taoyuan 33302, Taiwan; Division of Nephrology, Department of Internal Medicine, Chang Gung Memorial Hospital, Linkou, Taiwan; Department of Safety, Health and Environmental Engineering, Ming Chi University of Technology, New Taipei City 243303, Taiwan
| | - Kuan-Syun Wang
- Institute of Polymer Science and Engineering, National Taiwan University, Taipei 10617, Taiwan
| | - Yu-Wei Cheng
- Department of Chemical Engineering, Ming Chi University of Technology, New Taipei City 243303, Taiwan
| | - Wei-En Wu
- Department of Materials Engineering, Ming Chi University of Technology, New Taipei City 243303, Taiwan
| | - Yu-Hsuan Lin
- Department of Materials Engineering, Ming Chi University of Technology, New Taipei City 243303, Taiwan
| | - Ru-Jong Jeng
- Institute of Polymer Science and Engineering, National Taiwan University, Taipei 10617, Taiwan
| | - Li-Ying Huang
- Department of Materials Science and Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan
| | - Ming-Chien Yang
- Department of Materials Science and Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan.
| | - Shou-Hsuan Liu
- Division of Nephrology, Department of Internal Medicine, Chang Gung Memorial Hospital, Linkou, Taiwan.
| | - Ting-Yu Liu
- Department of Materials Engineering, Ming Chi University of Technology, New Taipei City 243303, Taiwan.
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18
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Chen H, Zhi H, Feng B, Cui B, Zhao X, Sun C, Wang Y, Cui H, Zhang B, Zeng Z. Thermo-Responsive Quaternary Ammonium Chitosan Nanocapsules with On-Demand Controlled Pesticide Release and Maximally Synergistic Biological Activity. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:7653-7661. [PMID: 35698843 DOI: 10.1021/acs.jafc.2c01791] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Pesticides play an important role in pest control. However, they can be limited due to low utilization efficiency, causing substantial losses to the environment and ecological damage. Nanotechnology is an active area of research regarding encapsulation of pesticides for sustainable pest control. Here, we developed intelligent formulations of avermectin (Av) quaternary ammonium chitosan surfactant (QACS) nanocapsules (i.e., Av-Th@QACS) with on-demand controlled release properties, toward ambient temperature and maximal synergistic biological activity of Av and QACS. The Av-Th@QACS regulated the quantity of pesticide release in accordance with the ambient temperature changes and, insofar as this release is a means of responding to variations in pest populations, maximized the synergistic activity. In addition, the Av-Th@QACS were highly adhesive to crop leaves as a result of the prolonged retention time on the crop leaves. Therefore, Av-Th@QACS exhibited greater control against aphids at 35 °C than at 15 and 25 °C. Compared with commercial formulations, Av-Th@QACS was more toxic at 35 °C and less toxic at 15 °C. Thus, researchers can apply Av-Th@QACS as intelligent nanopesticides with an on-demand, controlled release and synergistic biological activity and, in so doing, prolong pesticide duration and improve the utilization efficiency.
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Affiliation(s)
- Hongyan Chen
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, PR China
| | - Heng Zhi
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, PR China
| | - Boyuan Feng
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, PR China
| | - Bo Cui
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, PR China
| | - Xiang Zhao
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, PR China
| | - Changjiao Sun
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, PR China
| | - Yan Wang
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, PR China
| | - Haixin Cui
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, PR China
| | - Baohong Zhang
- Department of Biology, East Carolina University, Greenville, North Carolina 27858, United States
| | - Zhanghua Zeng
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, PR China
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19
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Fan R, Sun W, Zhang T, Wang R, Tian Y, Zhang H, Li J, Zheng A, Song S. Paclitaxel-nanocrystals-loaded network thermosensitive hydrogel for localised postsurgical recurrent of breast cancer after surgical resection. Biomed Pharmacother 2022; 150:113017. [PMID: 35483193 DOI: 10.1016/j.biopha.2022.113017] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2022] [Accepted: 04/19/2022] [Indexed: 11/02/2022] Open
Abstract
The recurrence of cancer after local surgery has been a difficult problem in the clinic for a long time. In recent years, local treatment via drug-loaded thermosensitive hydrogels have become a promising strategy to prevent cancer recurrence. Thus, a thermosensitive hydrogel based on poloxamer 407, poloxamer 188 and the bioadhesive excipient carbomer 974P was designed to locally release paclitaxel and prevent local tumour recurrence after direct smearing of the hydrogel at the site of injury in the surgical cavity. To improve the local drug concentration, paclitaxel was prepared into nanocrystals via a wet mill process. A series of studies were performed on this paclitaxel nanocrystal thermosensitive hydrogel (PTX-NCS-gel), including examination of its rheological properties and in vitro release and dissolution studies. Moreover, a postoperative tumour recurrence mouse model was established to evaluate the antitumour effects of this thermosensitive hydrogel. The results showed that PTX-NCS-gel had a clear, regular network structure with excellent temperature sensitivity and could be gelated within minutes at 33.1 °C. Additionally, the rheological property investigation indicated that the hydrogel has proper viscoelasticity and self-recovery ability. In vivo imaging showed that PTX-NCS-gel inhibited both local tumour recurrence and distant metastasis. Moreover, PTX-NCS-gel has the following advantages: it is more convenient to administer, avoids strong allergic responses, and has fewer side effects on the liver and spleen. This hydrogel has the potential to serve as a powerful auxiliary medication to prevent postoperative local tumour recurrence.
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Affiliation(s)
- Ranran Fan
- School of Pharmacy, Bengbu Medical College, Anhui 233030, China; Institute of Pharmacology and Toxicology, Academy of Military Medical Sciences, Academy of Military Sciences, Beijing 100850, China
| | - Wenjun Sun
- Institute of Pharmacology and Toxicology, Academy of Military Medical Sciences, Academy of Military Sciences, Beijing 100850, China
| | - Ting Zhang
- School of Basic Medical Sciences, Zhengzhou University, Zhengzhou 450000, China
| | - Rongrong Wang
- North China University of Science and Technology, Hebei 063210, China
| | - Yang Tian
- Institute of Pharmacology and Toxicology, Academy of Military Medical Sciences, Academy of Military Sciences, Beijing 100850, China
| | - Hui Zhang
- Institute of Pharmacology and Toxicology, Academy of Military Medical Sciences, Academy of Military Sciences, Beijing 100850, China.
| | - Jianchun Li
- School of Pharmacy, Bengbu Medical College, Anhui 233030, China.
| | - Aiping Zheng
- Institute of Pharmacology and Toxicology, Academy of Military Medical Sciences, Academy of Military Sciences, Beijing 100850, China.
| | - Shenghan Song
- Department of Vascular Surgery, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, China.
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20
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Kim J, Francis DM, Sestito LF, Archer PA, Manspeaker MP, O'Melia MJ, Thomas SN. Thermosensitive hydrogel releasing nitric oxide donor and anti-CTLA-4 micelles for anti-tumor immunotherapy. Nat Commun 2022; 13:1479. [PMID: 35304456 PMCID: PMC8933465 DOI: 10.1038/s41467-022-29121-x] [Citation(s) in RCA: 47] [Impact Index Per Article: 23.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Accepted: 02/23/2022] [Indexed: 01/01/2023] Open
Abstract
Due to their autosynchronous roles in shaping the anti-tumor immune response, complex immune regulatory networks acting both locally within the tumor microenvironment as well as in its draining lymph nodes play critical roles in the cancer immunotherapy response. We describe herein a thermosensitive co-polymer hydrogel system formed from biocompatible polymers gelatin and Pluronic® F127 that are widely used in humans to enable the sustained release of a nitric oxide donor and antibody blocking immune checkpoint cytotoxic T-lymphocyte-associated protein-4 for efficient and durable anti-tumor immunotherapy. By virtue of its unique gel formation and degradation properties that sustain drug retention at the tumor tissue site for triggered release by the tumor microenvironment and formation of in situ micelles optimum in size for lymphatic uptake, this rationally designed thermosensitive hydrogel facilitates modulation of two orthogonal immune signaling networks relevant to the regulation of the anti-tumor immune response to improve local and abscopal effects of cancer immunotherapy.
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Affiliation(s)
- Jihoon Kim
- Parker H. Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, 315 Ferst Dr NW, Atlanta, GA, 30332, USA.,George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, 315 Ferst Dr NW, Atlanta, GA, 30332, USA
| | - David M Francis
- Parker H. Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, 315 Ferst Dr NW, Atlanta, GA, 30332, USA.,School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, 315 Ferst Dr NW, Atlanta, GA, 30332, USA
| | - Lauren F Sestito
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology, 313 Ferst Dr NW, Atlanta, GA, 30332, USA.,Wallace H. Coulter Department of Biomedical Engineering, Emory University, 201 Dowman Drive, Atlanta, GA, 30322, USA
| | - Paul A Archer
- Parker H. Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, 315 Ferst Dr NW, Atlanta, GA, 30332, USA.,School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, 315 Ferst Dr NW, Atlanta, GA, 30332, USA
| | - Margaret P Manspeaker
- Parker H. Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, 315 Ferst Dr NW, Atlanta, GA, 30332, USA.,School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, 315 Ferst Dr NW, Atlanta, GA, 30332, USA
| | - Meghan J O'Melia
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology, 313 Ferst Dr NW, Atlanta, GA, 30332, USA.,Wallace H. Coulter Department of Biomedical Engineering, Emory University, 201 Dowman Drive, Atlanta, GA, 30322, USA
| | - Susan N Thomas
- Parker H. Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, 315 Ferst Dr NW, Atlanta, GA, 30332, USA. .,George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, 315 Ferst Dr NW, Atlanta, GA, 30332, USA. .,Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology, 313 Ferst Dr NW, Atlanta, GA, 30332, USA. .,Wallace H. Coulter Department of Biomedical Engineering, Emory University, 201 Dowman Drive, Atlanta, GA, 30322, USA. .,Winship Cancer Institute, Emory University School of Medicine, 1365-C Clifton Road NE, Atlanta, GA, 30322, USA.
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21
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Sustained Delivery of Lactoferrin Using Poloxamer Gels for Local Bone Regeneration in a Rat Calvarial Defect Model. MATERIALS 2021; 15:ma15010212. [PMID: 35009359 PMCID: PMC8745849 DOI: 10.3390/ma15010212] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Revised: 12/23/2021] [Accepted: 12/25/2021] [Indexed: 01/02/2023]
Abstract
Lactoferrin (LF) is a multifunctional milk glycoprotein that promotes bone regeneration. Local delivery of LF at the bone defect site is a promising approach for enhancement of bone regeneration, but efficient systems for sustained local delivery are still largely missing. The aim of this study was to investigate the potential of the poloxamers for sustained delivery of LF to enhance local bone regeneration. The developed LF/poloxamer formulations were liquid at room temperature (20 °C) transforming to a sustained releasing gel depot at body temperature (37 °C). In vitro release studies demonstrated an initial burst release (~50%), followed by slower release of LF for up to 72 h. Poloxamer, with and without LF, increased osteoblast viability at 72 h (p < 0.05) compared to control, and the immune response from THP-1 cells was mild when compared to the suture material. In rat calvarial defects, the LF/poloxamer group had lower bone volume than the controls (p = 0.0435). No difference was observed in tissue mineral density and lower bone defect coverage scores (p = 0.0267) at 12 weeks after surgery. In conclusion, LF/poloxamer formulations support cell viability and do not induce an unfavourable immune response; however, LF delivery via the current formulation of LF200/poloxamer gel did not demonstrate enhanced bone regeneration and was not compatible with the rat calvarial defect model.
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22
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Nor Azlan AYH, Katas H, Mohamad Zin N, Fauzi MB. Dual Action Gels Containing DsiRNA Loaded Gold Nanoparticles: Augmenting Diabetic Wound Healing by Promoting Angiogenesis and Inhibiting Infection. Eur J Pharm Biopharm 2021; 169:78-90. [PMID: 34582971 DOI: 10.1016/j.ejpb.2021.09.007] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Revised: 08/08/2021] [Accepted: 09/20/2021] [Indexed: 11/19/2022]
Abstract
Hyperglycemia induces the prostaglandin transporter (PGT) gene overexpression, leading to poor vascularization and wound healing. Dicer substrate small interfering RNA (DsiRNA) and gold nanoparticles (AuNPs) co-loaded into PF127 gel was developed to overcome the disturbance and infections. The AuNPs were biosynthesized using cold and hot water extracts of Lignosus rhinocerotis (abbreviated CLRE and HLRE, respectively). The wound healing efficacy of a PF127 gel containing DsiRNA-AuNPs-CLRE and -HLRE (assigned as F2 and F3, respectively) was evaluated in a diabetes-induced Wistar rat model. The F2 (DC) and F3 (DH) treated groups revealed a faster wound closure (92.67 ± 3.4% and 85.1 ± 7.3%, respectively) than the positive control (commercial gel, DTI)(74.9 ± 13.3%). DH and DC groups presented an increased blood vessel density, along with decreased inflammatory cells. In comparison to positive control, higher prostaglandin E2 (PGE2) (495 ±79 and 50 ±121 pg/mL, for DC and DH group, respectively), vascular endothelial growth factor (VEGF) (49 ±15 and 38 ±3 pg/mL, for DC and DH group, respectively) and VEGF-A levels were detected in both groups (DC and DH), indicating the effectiveness of DsiRNA in enhancing PGE2 production and vascularization. On evaluating microbiomes adhered to the wound areas, Gram-positive bacteria Staphylococcus and Corynebacterium, as well as Gram-negative Pseudomonas, Rodentibacter, and Acinetobacter, were found to be sensitive to the gel. Collectively, the gel was confirmed as a promising dressing for diabetic wound therapy, warranting further studies for clinical use.
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Affiliation(s)
- Ahmad Yasser Hamdi Nor Azlan
- Centre for Drug Delivery Technology, Faculty of Pharmacy, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, 50300, Kuala Lumpur, Malaysia; Faculty of Pharmacy and Health Sciences, Universiti Kuala Lumpur Royal College of Medicine Perak, 3, Jalan Greentown, 30450 Ipoh, Perak, Malaysia
| | - Haliza Katas
- Centre for Drug Delivery Technology, Faculty of Pharmacy, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, 50300, Kuala Lumpur, Malaysia.
| | - Noraziah Mohamad Zin
- Center For Diagnostic, Therapeutic and Investigative Studies, Faculty of Helath Sciences, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, 50300 Kuala Lumpur, Malaysia
| | - Mh Busra Fauzi
- Centre for Tissue Engineering and Regenerative Medicine, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur, 56000, Cheras, Malaysia
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Giuliano E, Fresta M, Cosco D. Development and characterization of poloxamine 908-hydrogels for potential pharmaceutical applications. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.116588] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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24
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Hyaluronic Acid-Functionalized Nanomicelles Enhance SAHA Efficacy in 3D Endometrial Cancer Models. Cancers (Basel) 2021; 13:cancers13164032. [PMID: 34439185 PMCID: PMC8394402 DOI: 10.3390/cancers13164032] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Revised: 07/28/2021] [Accepted: 08/09/2021] [Indexed: 12/24/2022] Open
Abstract
Simple Summary One of the major limitations to cancer therapies are the side effects caused by the drug interacting with any tissue in the body. There is often a balance between patient health and effectively treating the disease. To by-pass this balancing act nanoparticles are being used to deliver therapeutics straight to the tumors, acting as “Trojan Horses”. Endometrial cancers are known to have more of the cell surface protein CD44 than healthy tissues. Here, to efficiently target endometrial cancer, hyaluronic acid, which naturally binds to the CD44 protein was attached to the surface of nanoparticles and tested on microtissues or spheroids to better model a tumor and understand drug delivery performance. We show that our hyaluronic acid-nanoparticle formulations improve drug effects and interact with the cancer cells more than without this targeting agent. Abstract Histone Deacetylase (HDAC) enzymes are upregulated in cancer leading to the development of HDAC inhibiting compounds, several of which are currently in clinical trials. Side effects associated with toxicity and non-specific targeting indicate the need for efficient drug delivery approaches and tumor specific targeting to enhance HDAC efficacy in solid tumor cancers. SAHA encapsulation within F127 micelles functionalized with a surface hyaluronic acid moiety, was developed to target endometrial cancer cells expressing elevated levels of CD44. In vitro viability and morphology analyses was conducted in both 2D and 3D models to assess the translational potential of this approach. Encapsulation enhanced SAHA delivery and activity, demonstrating increased cytotoxic efficacy in 2D and 3D endometrial cancer models. High-content imaging showed improved nanoparticle internalization in 2D and CD44 enhanced penetration in 3D models. In addition, the nano-delivery system enhanced spheroid penetration resulting in cell growth suppression, p21 associated cell cycle arrest, as well as overcoming the formation of an EMT associated phenotype observed in free drug treated type II endometrial cancer cells. This study demonstrates that targeted nanoparticle delivery of SAHA could provide the basis for improving its efficacy in endometrial cancer. Using 3D models for endometrial cancer allows the elucidation of nanoparticle performance and CD44 targeting, likely through penetration and retention within the tumor model.
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Comite E, El-Nakhel C, Rouphael Y, Ventorino V, Pepe O, Borzacchiello A, Vinale F, Rigano D, Staropoli A, Lorito M, Woo SL. Bioformulations with Beneficial Microbial Consortia, a Bioactive Compound and Plant Biopolymers Modulate Sweet Basil Productivity, Photosynthetic Activity and Metabolites. Pathogens 2021; 10:pathogens10070870. [PMID: 34358020 PMCID: PMC8308691 DOI: 10.3390/pathogens10070870] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Revised: 07/05/2021] [Accepted: 07/06/2021] [Indexed: 11/16/2022] Open
Abstract
Increasing attention is being given to the development of innovative formulations to substitute the use of synthetic chemicals to improve agricultural production and resource use efficiency. Alternatives can include biological products containing beneficial microorganisms and bioactive metabolites able to inhibit plant pathogens, induce systemic resistance and promote plant growth. The efficacy of such bioformulations can be increased by the addition of polymers as adjuvants or carriers. Trichoderma afroharzianum T22, Azotobacter chroococcum 76A and 6-pentyl-α-pyrone (6PP; a Trichoderma secondary metabolite) were administrated singularly or in a consortium, with or without a carboxymethyl cellulose-based biopolymer (BP), and tested on sweet basil (Ocimum basilicum L.) grown in a protected greenhouse. The effect of the treatments on basil yield, photosynthetic activity and secondary metabolites production was assessed. Photosynthetic efficiency was augmented by the applications of the bioformulations. The applications to the rhizosphere with BP + 6PP and BP + T22 + 76A increased the total fresh weight of basil by 26.3% and 23.6%, respectively. Untargeted LC-MS qTOF analysis demonstrated that the plant metabolome was significantly modified by the treatments. Quantification of the profiles for the major phenolic acids indicated that the treatment with the T22 + 76A consortium increased rosmarinic acid content by 110%. The use of innovative bioformulations containing microbes, their metabolites and a biopolymer was found to modulate the cultivation of fresh basil by improving yield and quality, thus providing the opportunity to develop farming systems with minimal impact on the environmental footprint from the agricultural production process.
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Affiliation(s)
- Ernesto Comite
- Department of Agricultural Sciences, University of Naples Federico II, 80055 Portici, Italy; (E.C.); (C.E.-N.); (Y.R.); (V.V.); (O.P.); (A.S.); (M.L.)
| | - Christophe El-Nakhel
- Department of Agricultural Sciences, University of Naples Federico II, 80055 Portici, Italy; (E.C.); (C.E.-N.); (Y.R.); (V.V.); (O.P.); (A.S.); (M.L.)
| | - Youssef Rouphael
- Department of Agricultural Sciences, University of Naples Federico II, 80055 Portici, Italy; (E.C.); (C.E.-N.); (Y.R.); (V.V.); (O.P.); (A.S.); (M.L.)
| | - Valeria Ventorino
- Department of Agricultural Sciences, University of Naples Federico II, 80055 Portici, Italy; (E.C.); (C.E.-N.); (Y.R.); (V.V.); (O.P.); (A.S.); (M.L.)
- Task Force on Microbiome Studies, University of Naples Federico II, 80055 Portici, Italy
| | - Olimpia Pepe
- Department of Agricultural Sciences, University of Naples Federico II, 80055 Portici, Italy; (E.C.); (C.E.-N.); (Y.R.); (V.V.); (O.P.); (A.S.); (M.L.)
- Task Force on Microbiome Studies, University of Naples Federico II, 80055 Portici, Italy
| | - Assunta Borzacchiello
- National Research Council, Institute for Composite Polymers and Biomaterials, 80125 Napoli, Italy;
| | - Francesco Vinale
- Department of Veterinary Medicine and Animal Production, University of Naples Federico II, 80137 Naples, Italy;
- Institute for Sustainable Plant Protection, National Research Council, 80055 Portici, Italy
| | - Daniela Rigano
- Department of Pharmacy, University of Naples Federico II, 80131 Naples, Italy;
| | - Alessia Staropoli
- Department of Agricultural Sciences, University of Naples Federico II, 80055 Portici, Italy; (E.C.); (C.E.-N.); (Y.R.); (V.V.); (O.P.); (A.S.); (M.L.)
- Institute for Sustainable Plant Protection, National Research Council, 80055 Portici, Italy
| | - Matteo Lorito
- Department of Agricultural Sciences, University of Naples Federico II, 80055 Portici, Italy; (E.C.); (C.E.-N.); (Y.R.); (V.V.); (O.P.); (A.S.); (M.L.)
| | - Sheridan L. Woo
- Task Force on Microbiome Studies, University of Naples Federico II, 80055 Portici, Italy
- Institute for Sustainable Plant Protection, National Research Council, 80055 Portici, Italy
- Department of Pharmacy, University of Naples Federico II, 80131 Naples, Italy;
- Correspondence:
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26
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Mitochondria-targeted ROS- and GSH-responsive diselenide-crosslinked polymer dots for programmable paclitaxel release. J IND ENG CHEM 2021. [DOI: 10.1016/j.jiec.2021.04.016] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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27
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Francis DM, Manspeaker MP, Schudel A, Sestito LF, O'Melia MJ, Kissick HT, Pollack BP, Waller EK, Thomas SN. Blockade of immune checkpoints in lymph nodes through locoregional delivery augments cancer immunotherapy. Sci Transl Med 2021; 12:12/563/eaay3575. [PMID: 32998971 PMCID: PMC8377700 DOI: 10.1126/scitranslmed.aay3575] [Citation(s) in RCA: 131] [Impact Index Per Article: 43.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Revised: 02/11/2020] [Accepted: 08/28/2020] [Indexed: 12/12/2022]
Abstract
Systemic administration of immune checkpoint blockade (ICB) monoclonal antibodies (mAbs) can unleash antitumor functions of T cells but is associated with variable response rates and off-target toxicities. We hypothesized that antitumor efficacy of ICB is limited by the minimal accumulation of mAb within tissues where antitumor immunity is elicited and regulated, which include the tumor microenvironment (TME) and secondary lymphoid tissues. In contrast to systemic administration, intratumoral and intradermal routes of administration resulted in higher mAb accumulation within both the TME and its draining lymph nodes (LNs) or LNs alone, respectively. The use of either locoregional administration route resulted in pronounced T cell responses from the ICB therapy, which developed in the secondary lymphoid tissues and TME of treated mice. Targeted delivery of mAb to tumor-draining lymph nodes (TdLNs) alone was associated with enhanced antitumor immunity and improved therapeutic effects compared to conventional systemic ICB therapy, and these effects were sustained at reduced mAb doses and comparable to those achieved by intratumoral administration. These data suggest that locoregional routes of administration of ICB mAb can augment ICB therapy by improving immunomodulation within TdLNs.
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Affiliation(s)
- David M Francis
- School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA.,Parker H. Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, GA 30332, USA
| | - Margaret P Manspeaker
- School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA.,Parker H. Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, GA 30332, USA
| | - Alex Schudel
- Parker H. Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, GA 30332, USA.,School of Material Science and Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA
| | - Lauren F Sestito
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, GA 30332, USA
| | - Meghan J O'Melia
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, GA 30332, USA
| | - Haydn T Kissick
- Winship Cancer Institute, Emory University, Atlanta, GA 30322, USA.,Department of Urology, Emory University School of Medicine, Atlanta, GA 30322, USA.,Emory Vaccine Center, Emory University School of Medicine, Atlanta, GA 30322, USA
| | - Brian P Pollack
- Winship Cancer Institute, Emory University, Atlanta, GA 30322, USA.,Atlanta Veterans Affairs Medical Center, Decatur, GA 30033, USA.,Departments of Dermatology and Pathology and Laboratory Medicine, Emory University School of Medicine, Atlanta, GA 30322, USA
| | - Edmund K Waller
- Winship Cancer Institute, Emory University, Atlanta, GA 30322, USA
| | - Susan N Thomas
- Parker H. Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, GA 30332, USA. .,Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, GA 30332, USA.,Winship Cancer Institute, Emory University, Atlanta, GA 30322, USA.,George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA
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28
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Sustained Release Systems for Delivery of Therapeutic Peptide/Protein. Biomacromolecules 2021; 22:2299-2324. [PMID: 33957752 DOI: 10.1021/acs.biomac.1c00160] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Peptide/protein therapeutics have been significantly applied in the clinical treatment of various diseases such as cancer, diabetes, etc. owing to their high biocompatibility, specificity, and therapeutic efficacy. However, due to their immunogenicity, instability stemming from its complex tertiary and quaternary structure, vulnerability to enzyme degradation, and rapid renal clearance, the clinical application of protein/peptide therapeutics is significantly confined. Though nanotechnology has been demonstrated to prevent enzyme degradation of the protein therapeutics and thus enhance the half-life, issues such as initial burst release and uncontrollable release kinetics are still unsolved. Moreover, the traditional administration method results in poor patient compliance, limiting the clinical application of protein/peptide therapeutics. Exploiting the sustained-release formulations for more controllable delivery of protein/peptide therapeutics to decrease the frequency of injection and enhance patient compliance is thus greatly meaningful. In this review, we comprehensively summarize the substantial advancements of protein/peptide sustained-release systems in the past decades. In addition, the advantages and disadvantages of all these sustained-release systems in clinical application together with their future challenges are also discussed in this review.
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29
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Revisiting the salt-triggered self-assembly in very hydrophilic triblock copolymer Pluronic® F88 using multitechnique approach. Colloid Polym Sci 2021. [DOI: 10.1007/s00396-021-04833-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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30
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Sahu S, Karan P, Mishra AK. Nature of Saccharide-Induced F127 Micellar Dehydration: An Insight with FDAPT (2-Formyl-5-(4'- N, N-dimethylaminophenyl)thiophene), a Multiparametric Fluorescent Probe. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:3067-3074. [PMID: 33650876 DOI: 10.1021/acs.langmuir.0c03284] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
FDAPT (2-formyl-5-(4'-N,N-dimethylaminophenyl)thiophene) is an efficient environment-sensitive fluorescent probe, which senses the alteration of its microenvironment with six different fluorescent parameters, namely, emission intensity, wavelength, fluorescence anisotropy, and corresponding three time-dependent parameters fluorescence lifetime, time-resolved emission spectrum, and anisotropy decay. In the present work, the nature of saccharide-induced dehydration of a F127 polymeric micelle is investigated in detail with FDAPT emission. Using a multiparametric fluorescence approach, it is observed that the saccharide molecules not only decrease the critical micellization temperature of the F127 solution but also strongly alter the physical properties inside the micellar structures. The local polarity and fluidity significantly decrease in the saccharide-induced micelle as compared to the normal F127 micelle. The probe solvation dynamics study reveals that the water content in the core as well as corona domain diminishes significantly in the saccharide-induced micelle as compared to the normal micelle. More precisely, dehydration occurs more in the core region than in the corona region. Also, the saccharide-induced dehydration alters the relative size of the core and corona regions. The extent of dehydration varies with different saccharide molecules. It is also found that the dehydration efficiency order is trisaccharide (raffinose) > disaccharide (sucrose) > monosaccharide (glucose and fructose).
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Affiliation(s)
- Saugata Sahu
- Department of Chemistry, Indian Institute of Technology Madras, Sardar Patel Road, Adyar, Chennai 600036, India
| | - Pulak Karan
- Department of Chemistry, Indian Institute of Technology Madras, Sardar Patel Road, Adyar, Chennai 600036, India
| | - Ashok Kumar Mishra
- Department of Chemistry, Indian Institute of Technology Madras, Sardar Patel Road, Adyar, Chennai 600036, India
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31
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Valero M, Hu W, Houston JE, Dreiss CA. Solubilisation of salicylate in F127 micelles: Effect of pH and temperature on morphology and interactions with cyclodextrin. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2020.114892] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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32
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Patel D, Rathod S, Tiwari S, Ray D, Kuperkar K, Aswal VK, Bahadur P. Self-Association in EO-BO-EO Triblock Copolymers as a Nanocarrier Template for Sustainable Release of Anticancer Drugs. J Phys Chem B 2020; 124:11750-11761. [PMID: 33305575 DOI: 10.1021/acs.jpcb.0c09386] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Ethylene oxide (EO)-butylene oxide (BO)-ethylene oxide (EO)-based triblock copolymers with varying hydrophilic-hydrophobic ratios in arrangement, generally referred to as EBE, were scrutinized in an aqueous environment. Various self-associative (micellization) physicochemical properties of these EBEs were examined at different temperatures unified with a quantum chemical study. The salting-out effect on 5%w/v EBE was examined by observing their aqueous solution behavior where the clear transparent solution/turbidity suggested the probable presence of spherical or ellipsoidal micelles, which was confirmed from the scattering outline. The hydrodynamic radius (Dh) of the formed micellar geometry as a function of temperature and electrolyte (2 M NaCl) was inspected from dynamic light scattering and further supported by small-angle neutron scattering, where the Q-range prototype and scattering parameters were evaluated by the best fitting of the structure factor. Furthermore, these micelles were employed as potential nanocarriers for anticancer (curcumin and quercetin) drugs, where its release profile at a particular time interval was estimated using UV-vis spectroscopy. Different kinetic models were employed to fit the release profile data that enabled this study to act as an ideal platform for drug delivery. Also, the plausible interactions between EO-BO-EO blocks and the anticancer drugs were inferred from the evaluated computational descriptors.
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Affiliation(s)
- Dhruvi Patel
- Applied Chemistry Department, Sardar Vallabhbhai National Institute of Technology (SVNIT), Ichchhanath, Surat 395 007, Gujarat, India
| | - Sachin Rathod
- Maliba Pharmacy College, UKA Tarsadia University (UTU), Gopal-Vidyanagar Campus, Surat 394 350, Gujarat, India
| | - Sanjay Tiwari
- Maliba Pharmacy College, UKA Tarsadia University (UTU), Gopal-Vidyanagar Campus, Surat 394 350, Gujarat, India
| | - Debes Ray
- Solid State Physics Division, Bhabha Atomic Research Centre (BARC), Trombay, Mumbai 400 085, Maharashtra, India
| | - Ketan Kuperkar
- Applied Chemistry Department, Sardar Vallabhbhai National Institute of Technology (SVNIT), Ichchhanath, Surat 395 007, Gujarat, India
| | - Vinod K Aswal
- Solid State Physics Division, Bhabha Atomic Research Centre (BARC), Trombay, Mumbai 400 085, Maharashtra, India
| | - Pratap Bahadur
- Department of Chemistry, Veer Narmad South Gujarat University (VNSGU), Udhana-Magdalla Road, Surat 395 007, Gujarat, India
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Nor Azlan AYH, Katas H, Habideen NH, Mh Busra MF. Dual-action of thermoresponsive gels containing DsiRNA-loaded gold nanoparticles for diabetic wound therapy: Characterization, in vitro safety and healing efficacy. Saudi Pharm J 2020; 28:1420-1430. [PMID: 33250649 PMCID: PMC7679469 DOI: 10.1016/j.jsps.2020.09.007] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Accepted: 09/11/2020] [Indexed: 01/13/2023] Open
Abstract
Diabetic wounds are difficult to treat due to multiple causes, including reduced blood flow and bacterial infections. Reduced blood flow is associated with overexpression of prostaglandin transporter (PGT) gene, induced by hyperglycaemia which causing poor vascularization and healing of the wound. Recently, gold nanoparticles (AuNPs) have been biosynthesized using cold and hot sclerotium of Lignosus rhinocerotis extracts (CLRE and HLRE, respectively) and capped with chitosan (CS) to produce biocompatible antibacterial nanocomposites. The AuNPs have shown to produce biostatic effects against selected gram positive and negative bacteria. Therefore, in this study, a dual therapy for diabetic wound consisting Dicer subtract small interfering RNA (DsiRNA) and AuNPs was developed to improve vascularization by inhibiting PGT gene expression and preventing bacterial infection, respectively. The nanocomposites were incorporated into thermoresponsive gel, made of pluronic and polyethylene glycol. The particle size of AuNPs synthesized using CLRE (AuNPs-CLRE) and HLRE (AuNPs-HLRE) was 202 ± 49 and 190 ± 31 nm, respectively with positive surface charge (+30 to + 45 mV). The thermoresponsive gels containing DsiRNA-AuNPs gelled at 32 ± 1 °C and released the active agents in sufficient amount with good texture and rheological profiles for topical application. DsiRNA-AuNPs and those incorporated into thermoresponsive pluronic gels demonstrated high cell viability, proliferation and cell migration rate via in vitro cultured cells of human dermal fibroblasts, indicating their non-cytotoxicity and wound healing properties. Taken together, the thermoresponsive gels are expected to be useful as a potential dressing that promotes healing of diabetic wounds.
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Affiliation(s)
- Ahmad Yasser Hamdi Nor Azlan
- Centre for Drug Delivery Research, Faculty of Pharmacy, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, Kuala Lumpur, Malaysia.,Faculty of Pharmacy and Health Sciences, Universiti Kuala Lumpur (Royal College of Medicine Perak), 3, Jalan Greentown, 30450 Ipoh, Perak, Malaysia
| | - Haliza Katas
- Centre for Drug Delivery Research, Faculty of Pharmacy, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, Kuala Lumpur, Malaysia
| | - Nur Hamizah Habideen
- Centre for Drug Delivery Research, Faculty of Pharmacy, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, Kuala Lumpur, Malaysia
| | - Mohd Fauzi Mh Busra
- Tissue Engineering Centre, UKM Medical Centre, 56000 Cheras, Kuala Lumpur, Malaysia
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34
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Kim SY, Mongey R, Wang P, Rothery S, Gaboriau DCA, Hind M, Griffiths M, Dean CH. The acid injury and repair (AIR) model: A novel ex-vivo tool to understand lung repair. Biomaterials 2020; 267:120480. [PMID: 33157373 DOI: 10.1016/j.biomaterials.2020.120480] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Revised: 09/11/2020] [Accepted: 10/18/2020] [Indexed: 12/22/2022]
Abstract
Research into mechanisms underlying lung injury and subsequent repair responses is currently of paramount importance. There is a paucity of models that bridge the gap between in vitro and in vivo research. Such intermediate models are critical for researchers to decipher the mechanisms that drive repair and to test potential new treatments for lung repair and regeneration. Here we report the establishment of a new tool, the Acid Injury and Repair (AIR) model, that will facilitate studies of lung tissue repair. In this model, injury is applied to a restricted area of a precision-cut lung slice using hydrochloric acid, a clinically relevant driver. The surrounding area remains uninjured, thus mimicking the heterogeneous pattern of injury frequently observed in lung diseases. We show that in response to injury, the percentage of progenitor cells (pro surfactant protein C, proSP-C and TM4SF1 positive) significantly increases in the injured region. Whereas in the uninjured area, the percentage of proSP-C/TM4SF1 cells remains unchanged but proliferating cells (Ki67 positive) increase. These effects are modified in the presence of inhibitors of proliferation (Cytochalasin D) and Wnt secretion (C59) demonstrating that the AIR model is an important new tool for research into lung disease pathogenesis and potential regenerative medicine strategies.
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Affiliation(s)
- Sally Yunsun Kim
- National Heart and Lung Institute, Imperial College London, London, UK
| | - Róisín Mongey
- National Heart and Lung Institute, Imperial College London, London, UK
| | - Peizhu Wang
- National Heart and Lung Institute, Imperial College London, London, UK
| | - Stephen Rothery
- Facility for Imaging by Light Microscopy, NHLI, Faculty of Medicine, Imperial College London, London, UK
| | - David C A Gaboriau
- Facility for Imaging by Light Microscopy, NHLI, Faculty of Medicine, Imperial College London, London, UK
| | - Matthew Hind
- National Heart and Lung Institute, Imperial College London, London, UK; National Institute for Health Research (NIHR) Respiratory Biomedical Research Unit at the Royal Brompton & Harefield NHS Foundation Trust and Imperial College, London, UK
| | - Mark Griffiths
- National Heart and Lung Institute, Imperial College London, London, UK; Peri-Operative Medicine Department, St Bartholomew's Hospital, London, UK
| | - Charlotte H Dean
- National Heart and Lung Institute, Imperial College London, London, UK; MRC Harwell Institute, Harwell Campus, Oxfordshire, UK.
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35
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Tong X, Pan W, Su T, Zhang M, Dong W, Qi X. Recent advances in natural polymer-based drug delivery systems. REACT FUNCT POLYM 2020. [DOI: 10.1016/j.reactfunctpolym.2020.104501] [Citation(s) in RCA: 58] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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36
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Huijghebaert S, De Bruyne P, Allegaert K, Vande Velde S, De Bruyne R, Van Biervliet S, Van Winckel M. Medical devices that look like medicines: safety and regulatory concerns for children in Europe. Arch Dis Child 2020; 105:147-154. [PMID: 31533915 DOI: 10.1136/archdischild-2018-316391] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/14/2018] [Revised: 07/28/2019] [Accepted: 08/23/2019] [Indexed: 01/11/2023]
Abstract
INTRODUCTION Medical devices (MedDevs) and medicines are assessed (and monitored) differently before and after launch. There are products for repeated oral ingestion that are marketed in the European Union as MedDevs. OBJECTIVES AND METHODS To illustrate the consequences of these differences in assessment, we compared the leaflet information of three MedDevs with the standards for medicines and with published evidence at launch. As examples, gelatin tannate (GT), its combination with tyndalised probiotics (TP) (GTTP) for diarrhoea and a gel containing hyaluronic acid (HA)/chondroitin sulfate (CS)/poloxamer (Pol407) (HACSPol) for gastro-oesophageal reflux disease were examined. RESULTS Applying standards for medicines, product composition is insufficiently defined in the MedDev leaflet (eg, plant origin, polymerisation grade, dose and ratio of the relevant constituents). As no age limit is mentioned in the leaflets, all 3 products allow use in children from birth onwards, although published clinical documentation in children was poor (GT) or lacking (GTTP and HACSPol). MedDev leaflets do not mention adverse events (AEs), while literature search suggests safety concerns such as tannic acid (TA) cytotoxicity, potentially more diarrhoea/AEs with TP, use of doses higher than established safe (TA and HA) and lack of chronic toxicity studies for oral Pol407. None refers to interactions with medicines, although some ingredients may affect medicine absorption. CONCLUSION Although these MedDevs require repeated oral intake as do medicines, their assessment and monitoring differ significantly from the standards for medicines. Compared with medicines, MedDevs for repeated oral use are poorly labelled and rely on very limited clinical information at market release.
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Affiliation(s)
| | - Pauline De Bruyne
- Department of Paediatric Gastroenteroloy, Ghent University Hospital - Ghent University, Gent, Belgium.,Department of Paediatric Gastroenterology, Erasmus MC, Rotterdam, The Netherlands
| | - Karel Allegaert
- Department of Paediatrics, Division of Neonatology, Sophia Children's Hospital, Erasmus MC, Rotterdam, The Netherlands.,Department of Development and Regeneration, KU Leuven, Leuven, Belgium
| | - Saskia Vande Velde
- Department of Paediatric Gastroenteroloy, Ghent University Hospital - Ghent University, Gent, Belgium
| | - Ruth De Bruyne
- Department of Paediatric Gastroenteroloy, Ghent University Hospital - Ghent University, Gent, Belgium
| | - Stephanie Van Biervliet
- Department of Paediatric Gastroenteroloy, Ghent University Hospital - Ghent University, Gent, Belgium
| | - Myriam Van Winckel
- Department of Paediatric Gastroenteroloy, Ghent University Hospital - Ghent University, Gent, Belgium
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Temperature-sensitive semi-IPN composite hydrogels for antibacterial applications. Colloids Surf A Physicochem Eng Asp 2019. [DOI: 10.1016/j.colsurfa.2019.04.012] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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38
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Mishra J, Mishra AK. Estimation of Micropolarity and Microviscosity of Pluronic F127–Surfactant Mixed Systems Using Fisetin as a Fluorescent Molecular Probe. ChemistrySelect 2019. [DOI: 10.1002/slct.201803924] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Jhili Mishra
- Department of ChemistryIndian Institute of Technology Madras Chennai 600036
| | - Ashok Kumar Mishra
- Department of ChemistryIndian Institute of Technology Madras Chennai 600036
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Akilo OD, Kumar P, Choonara YE, du Toit LC, Pradeep P, Modi G, Pillay V. In situ thermo-co-electroresponsive mucogel for controlled release of bioactive agent. Int J Pharm 2019; 559:255-270. [PMID: 30690131 DOI: 10.1016/j.ijpharm.2019.01.044] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2018] [Revised: 01/11/2019] [Accepted: 01/17/2019] [Indexed: 10/27/2022]
Abstract
The purpose of this work was to develop an in situ thermosensitive electro-responsive mucoadhesive gel loaded with bioactive agent (nanocomposite) meant for nose to brain delivery in a controllable manner when electric stimulation is applied. Nanocomposite was developed using a combinatorial blending of chitosan, hydroxypropylmethylcellulose, pluronic F127 and polyaniline which was then loaded with BCNU-Nano-co-Plex (the bioactive agent). The nanocomposite was a liquid at room temperature but formed an in situ mucogel at a temperature of 27.5 ± 0.5 °C. Furthermore, the nanocomposite possessed a redox element which makes it responsive to electrical stimulation (ES). The stimuli responsiveness enabled the formulation to release the bioactive agent when electrical potential was applied and demonstrated a desired 10.28% release of nanoparticles per application cycle. The results further revealed pore formation within the formulation which accommodated the loaded nanoparticles. The release profile also demonstrated a pulsatile release of the bioactive material when subjected to ES. This formulation may therefore be useful as a nose to brain drug delivery system that can be modulated to deliver bioactive agents to the brain via electro-actuation in an "on-off" drug release kinetics by means of an external ES for a controlled nose-to-brain delivery.
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Affiliation(s)
- Olufemi D Akilo
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, School of Therapeutic Sciences, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, 7 York Road, Parktown, 2193, South Africa
| | - Pradeep Kumar
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, School of Therapeutic Sciences, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, 7 York Road, Parktown, 2193, South Africa
| | - Yahya E Choonara
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, School of Therapeutic Sciences, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, 7 York Road, Parktown, 2193, South Africa
| | - Lisa C du Toit
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, School of Therapeutic Sciences, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, 7 York Road, Parktown, 2193, South Africa
| | - Priyamvada Pradeep
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, School of Therapeutic Sciences, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, 7 York Road, Parktown, 2193, South Africa
| | - Girish Modi
- Department of Neurology, Division of Neurosciences, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, 7 York Road, Parktown, 2193, South Africa
| | - Viness Pillay
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, School of Therapeutic Sciences, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, 7 York Road, Parktown, 2193, South Africa.
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Rodrigues RO, Baldi G, Doumett S, Garcia-Hevia L, Gallo J, Bañobre-López M, Dražić G, Calhelha RC, Ferreira IC, Lima R, Gomes HT, Silva AM. Multifunctional graphene-based magnetic nanocarriers for combined hyperthermia and dual stimuli-responsive drug delivery. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 93:206-217. [DOI: 10.1016/j.msec.2018.07.060] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2017] [Revised: 07/05/2018] [Accepted: 07/23/2018] [Indexed: 11/16/2022]
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41
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Akbar MU, Zia KM, Nazir A, Iqbal J, Ejaz SA, Akash MSH. Pluronic-Based Mixed Polymeric Micelles Enhance the Therapeutic Potential of Curcumin. AAPS PharmSciTech 2018; 19:2719-2739. [PMID: 29978290 DOI: 10.1208/s12249-018-1098-9] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2018] [Accepted: 06/06/2018] [Indexed: 12/31/2022] Open
Abstract
Curcumin is a naturally occurring constituent of turmeric that is a good substitute for synthetic medicines for the treatment of different diseases, due to its comparatively safer profile. However, there are certain shortcomings that limit its use as an ideal therapeutic agent. In order to overcome these drawbacks, we prepared novel curcumin-loaded mixed polymeric micelles using different biocompatible polymers by the thin-film hydration method. We investigated the critical micelle concentration and temperature, drug loading and encapsulation efficiency, and minimum inhibitory concentration by spectrophotometry. Surface morphology, stability, particle size, drug-polymer interaction, and physical state of the prepared formulations were investigated using scanning electron microscopy, zeta potential, particle size analyzer, Fourier-transform infrared spectroscopy, and X-ray diffraction, respectively. The drug loading and entrapment efficiency were significantly increased (P < 0.01) when curcumin was encapsulated with pluronic-based mixed polymeric micelles as compared to that of pluronic-based micelles alone. In vitro studies exhibited that pluronic-based mixed polymeric micelles significantly increased anticancer (P < 0.01), antimicrobial (P < 0.001), antioxidant (P < 0.001), and α-amylase inhibitory (P < 0.001) activities when compared to pure curcumin and/or pluronic-based micelles alone. These findings suggest that the formation of mixed polymeric micelles increases the stability and solubility of curcumin.
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42
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Basso J, Miranda A, Nunes S, Cova T, Sousa J, Vitorino C, Pais A. Hydrogel-Based Drug Delivery Nanosystems for the Treatment of Brain Tumors. Gels 2018; 4:E62. [PMID: 30674838 PMCID: PMC6209281 DOI: 10.3390/gels4030062] [Citation(s) in RCA: 65] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2018] [Revised: 07/09/2018] [Accepted: 07/18/2018] [Indexed: 11/16/2022] Open
Abstract
Chemotherapy is commonly associated with limited effectiveness and unwanted side effects in normal cells and tissues, due to the lack of specificity of therapeutic agents to cancer cells when systemically administered. In brain tumors, the existence of both physiological barriers that protect tumor cells and complex resistance mechanisms to anticancer drugs are additional obstacles that hamper a successful course of chemotherapy, thus resulting in high treatment failure rates. Several potential surrogate therapies have been developed so far. In this context, hydrogel-based systems incorporating nanostructured drug delivery systems (DDS) and hydrogel nanoparticles, also denoted nanogels, have arisen as a more effective and safer strategy than conventional chemotherapeutic regimens. The former, as a local delivery approach, have the ability to confine the release of anticancer drugs near tumor cells over a long period of time, without compromising healthy cells and tissues. Yet, the latter may be systemically administered and provide both loading and targeting properties in their own framework, thus identifying and efficiently killing tumor cells. Overall, this review focuses on the application of hydrogel matrices containing nanostructured DDS and hydrogel nanoparticles as potential and promising strategies for the treatment and diagnosis of glioblastoma and other types of brain cancer. Some aspects pertaining to computational studies are finally addressed.
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Affiliation(s)
- João Basso
- Faculty of Pharmacy, University of Coimbra, Coimbra 3000-354, Portugal.
- Center for Neurosciences and Cell Biology (CNC), University of Coimbra, Coimbra 3004-504, Portugal.
| | - Ana Miranda
- Faculty of Pharmacy, University of Coimbra, Coimbra 3000-354, Portugal.
- Center for Neurosciences and Cell Biology (CNC), University of Coimbra, Coimbra 3004-504, Portugal.
| | - Sandra Nunes
- Coimbra Chemistry Centre, Department of Chemistry, University of Coimbra, Coimbra 3004-535, Portugal.
| | - Tânia Cova
- Coimbra Chemistry Centre, Department of Chemistry, University of Coimbra, Coimbra 3004-535, Portugal.
| | - João Sousa
- Faculty of Pharmacy, University of Coimbra, Coimbra 3000-354, Portugal.
- LAQV REQUIMTE, Group of Pharmaceutical Technology, Porto 4051-401, Portugal.
| | - Carla Vitorino
- Faculty of Pharmacy, University of Coimbra, Coimbra 3000-354, Portugal.
- Center for Neurosciences and Cell Biology (CNC), University of Coimbra, Coimbra 3004-504, Portugal.
- LAQV REQUIMTE, Group of Pharmaceutical Technology, Porto 4051-401, Portugal.
| | - Alberto Pais
- Coimbra Chemistry Centre, Department of Chemistry, University of Coimbra, Coimbra 3004-535, Portugal.
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Abstract
Oral delivery is the most common method of drug administration with high safety and good compliance for patients. However, delivering therapeutic proteins to the target site via oral route involves tremendous challenge due to unfavourable conditions like biochemical barrier, mucus barrier and epithelial barriers. According to the functional differences of various protein drug delivery systems, the recent advances in pH responsive polymer-based drug delivery system, mucoadhesive polymer-based drug delivery system, absorption enhancers-based drug delivery system and composite polymer-based delivery system all were briefly summarised in this review, which not only clarified the clinic potential of these novel drug delivery systems, but also described the way for increasing oral bioavailability of therapeutic protein.
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Affiliation(s)
- Shiming He
- a Institute of Military Cognition and Brain Sciences , Beijing , China.,b College of Pharmaceutical Sciences , Hebei University , Baoding , China.,c Key Laboratory of Pharmaceutical Quality Control of Hebei Province, College of Pharmaceutical Sciences , Hebei university , Baoding , China
| | - Zhongcheng Liu
- b College of Pharmaceutical Sciences , Hebei University , Baoding , China.,c Key Laboratory of Pharmaceutical Quality Control of Hebei Province, College of Pharmaceutical Sciences , Hebei university , Baoding , China
| | - Donggang Xu
- a Institute of Military Cognition and Brain Sciences , Beijing , China
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Arslan A, Kose Ozkan C, Sig AK, Dogan E, Esim O, Cetinkaya S, Atalay F, Tas C, Savaser A, Ozkan Y. Evaluation of a novel oxiconazole nitrate formulation: The thermosensitive gel. Saudi Pharm J 2018; 26:665-672. [PMID: 29991910 PMCID: PMC6035325 DOI: 10.1016/j.jsps.2018.02.025] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2017] [Accepted: 02/11/2018] [Indexed: 11/29/2022] Open
Abstract
Superficial fungal infections caused by Candida species are common skin diseases. Therefore, this study aimed to develop a new formulation containing oxiconazole nitrate, which is an azole group derivative for antifungal treatment, as a thermosensitive gel since there has been no literature study until now. MIC value of the novel thermosensitive formulation against three Candida species was calculated and time-dependent antifungal activity analysis was performed. Viscosity, transition temperature Tsol-gel (°C) and gelation time of the thermosensitive gel formulation were also determined in the viscometer. The measurements performed on the tensilometer device were analyzed for adhesion hardness and elongation percentages of the formulation. In the FT-IR spectrometer, the spectrum of solution and gel state was compared between 650 and 4000 cm-1 and it was found that there is no difference between them. It was found that the temperature is reversible on the formulation and did not cause any disruption of its components. Characterization parameters of the thermosensitive gel formulation containing oxiconazole nitrate and time-dependent activity against Candida species was observed to be the same as those of the solution containing only oxiconazole nitrate. MIC, MFC and time-dependent antifungal analysis did not show any particular difference between formulation and oxiconazole nitrate itself. Thermosensitive gel formulation containing oxiconazole nitrate was found to be effective on superficial fungal infections. We believe it is also appropriate for in vivo usage, but it is necessary to perform animal and human research. It is also needed to evaluate the formulation against other etiologic agents of superficial fungal infections.
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Affiliation(s)
- Alper Arslan
- University of Health Sciences, Department of Pharmaceutical Technology, Gulhane Campus, Ankara, Turkey
| | - Cansel Kose Ozkan
- University of Health Sciences, Department of Pharmaceutical Technology, Gulhane Campus, Ankara, Turkey
| | - Ali Korhan Sig
- University of Health Sciences, Department of Medical Microbiology, Gulhane Campus, Ankara, Turkey
| | - Eyup Dogan
- University of Health Sciences, Department of Medical Microbiology, Gulhane Campus, Ankara, Turkey
| | - Ozgur Esim
- University of Health Sciences, Department of Pharmaceutical Technology, Gulhane Campus, Ankara, Turkey
| | - Serdar Cetinkaya
- University of Health Sciences, Department of Pharmaceutical Toxicology, Gulhane Campus, Ankara, Turkey
| | - Filiz Atalay
- University of Health Sciences, Department of Pharmaceutical Technology, Gulhane Campus, Ankara, Turkey
| | - Cetin Tas
- University of Health Sciences, Department of Pharmaceutical Technology, Gulhane Campus, Ankara, Turkey
| | - Ayhan Savaser
- University of Health Sciences, Department of Pharmaceutical Technology, Gulhane Campus, Ankara, Turkey
| | - Yalcin Ozkan
- University of Health Sciences, Department of Pharmaceutical Technology, Gulhane Campus, Ankara, Turkey
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45
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Bakker MH, van Rooij E, Dankers PYW. Controlled Release of RNAi Molecules by Tunable Supramolecular Hydrogel Carriers. Chem Asian J 2018; 13:3501-3508. [PMID: 29858562 DOI: 10.1002/asia.201800582] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2018] [Revised: 05/27/2018] [Indexed: 11/06/2022]
Abstract
Local, sustained release and presentation of RNAi therapeutics can be achieved with hydrogel delivery systems. Here we show the development of a supramolecular hydrogel into a local RNAi delivery system. By careful material design, two simple but effective strategies are introduced to obtain controlled release of two classes of RNAi therapeutics, that is, microRNA and antimiR. It was shown that the release of microRNA could be regulated using cholesterol-modification for interaction with the supramolecular hydrogel. Non-modified antimiR release could be controlled via supramolecular introduction of positively charged additive molecules into the supramolecular hydrogel. In this way, either the cholesterol-modification on the drug or the charge introduction into the hydrogel provides handles for controlled RNAi therapy.
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Affiliation(s)
- Maarten H Bakker
- Institute for Complex Molecular Systems, Department of Biomedical Engineering, Laboratory of Chemical Biology, Eindhoven University of Technology, 5600 MB, Eindhoven, The Netherlands
| | - Eva van Rooij
- Hubrecht Institute, KNAW, and University Medical Center Utrecht, 3584 CT, Utrecht, The Netherlands
| | - Patricia Y W Dankers
- Institute for Complex Molecular Systems, Department of Biomedical Engineering, Laboratory of Chemical Biology, Eindhoven University of Technology, 5600 MB, Eindhoven, The Netherlands
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46
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Development of an Injectable Slow-Release Metformin Formulation and Evaluation of Its Potential Antitumor Effects. Sci Rep 2018; 8:3929. [PMID: 29500390 PMCID: PMC5834504 DOI: 10.1038/s41598-018-22054-w] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2017] [Accepted: 02/16/2018] [Indexed: 12/23/2022] Open
Abstract
Metformin is an antidiabetic drug which possesses antiproliferative activity in cancer cells when administered at high doses, due to its unfavorable pharmacokinetics. The aim of this work was to develop a pharmacological tool for the release of metformin in proximity of the tumor, allowing high local concentrations, and to demonstrate the in vivo antitumor efficacy after a prolonged metformin exposition. A 1.2% w/w metformin thermoresponsive parenteral formulation based on poloxamers P407 and P124, injectable at room temperature and undergoing a sol-gel transition at body temperature, has been developed and optimized for rheological, thermal and release control properties; the formulation is easily scalable, and proved to be stable during a 1-month storage at 5 °C. Using NOD/SCID mice pseudo-orthotopically grafted with MDA-MB-231/luc+ human breast cancer cells, we report that multiple administrations of 100 mg of the optimized metformin formulation close to the tumor site cause tissue accumulation of the drug at levels significantly higher than those observed in plasma, and enough to exert antiproliferative and pro-apoptotic activities. Our results demonstrate that this formulation is endowed with good stability, tolerability, thermal and rheological properties, representing a novel tool to be pursued in further investigations for adjuvant cancer treatment.
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Song Z, Sun J, Deng P, Zhou F, Xu H, Wen Y, Teng F, Ge D, Feng R. Oligochitosan-pluronic 127 conjugate for delivery of honokiol. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2018; 46:740-750. [DOI: 10.1080/21691401.2018.1434785] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Zhimei Song
- School of Biological Science and Technology, University of Jinan, Jinan, PR China
| | - Jingjie Sun
- College of Life Science and Bioengineering, Beijing University of Technology, Beijing, PR China
| | - Peizong Deng
- School of Biological Science and Technology, University of Jinan, Jinan, PR China
| | - Feilong Zhou
- School of Biological Science and Technology, University of Jinan, Jinan, PR China
| | - Hongmei Xu
- School of Biological Science and Technology, University of Jinan, Jinan, PR China
| | - Yi Wen
- School of Biological Science and Technology, University of Jinan, Jinan, PR China
| | - Fangfang Teng
- School of Biological Science and Technology, University of Jinan, Jinan, PR China
| | - Di Ge
- School of Biological Science and Technology, University of Jinan, Jinan, PR China
| | - Runliang Feng
- School of Biological Science and Technology, University of Jinan, Jinan, PR China
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Gad SF, Park J, Park JE, Fetih GN, Tous SS, Lee W, Yeo Y. Enhancing Docetaxel Delivery to Multidrug-Resistant Cancer Cells with Albumin-Coated Nanocrystals. Mol Pharm 2018; 15:10.1021/acs.molpharmaceut.7b00783. [PMID: 29341617 PMCID: PMC6064681 DOI: 10.1021/acs.molpharmaceut.7b00783] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Intravenous delivery of poorly water-soluble anticancer drugs such as docetaxel (DTX) is challenging due to the low bioavailability and the toxicity related to solubilizing excipients. Colloidal nanoparticles are used as alternative carriers, but low drug loading capacity and circulation instability limit their clinical translation. To address these challenges, DTX nanocrystals (NCs) were prepared using Pluronic F127 as an intermediate stabilizer and albumin as a functional surface modifier, which were previously found to be effective in producing small and stable NCs. We hypothesize that the albumin-coated DTX NCs (DTX-F-alb) will remain stable in serum-containing medium so as to effectively leverage the enhanced permeability and retention effect. In addition, the surface-bound albumin, in its native form, may contribute to cellular transport of NCs through interactions with albumin-binding proteins such as secreted protein acidic and rich in cysteine (SPARC). DTX-F-alb NCs showed sheet-like structure with an average length, width, and thickness of 284 ± 96, 173 ± 56, and 40 ± 8 nm and remained stable in 50% serum solution at a concentration greater than 10 μg/mL. Cytotoxicity and cellular uptake of DTX-F-alb and unformulated (free) DTX were compared on three cell lines with different levels of SPARC expression and DTX sensitivity. While the uptake of free DTX was highly dependent on DTX sensitivity, DTX-F-alb treatment resulted in relatively consistent cellular levels of DTX. Free DTX was more efficient in entering drug-sensitive B16F10 and SKOV-3 cells than DTX-F-alb, with consistent cytotoxic effects. In contrast, multidrug-resistant NCI/ADR-RES cells took up DTX-F-alb more than free DTX with time and responded better to the former. This difference was reduced by SPARC knockdown. The high SPARC expression level of NCI/ADR-RES cells, the known affinity of albumin for SPARC, and the opposing effect of SPARC knockdown support that DTX-F-alb have exploited the surface-bound albumin-SPARC interaction in entering NCI/ADR-RES cells. Albumin-coated NC system is a promising formulation for the delivery of hydrophobic anticancer drugs to multidrug-resistant tumors.
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Affiliation(s)
- Sheryhan F. Gad
- Department of Pharmaceutics, Faculty of Pharmacy, Assiut University, Assiut 71526, Egypt
- Department of Industrial and Physical Pharmacy, Purdue University, 575 Stadium Mall Drive, West Lafayette, IN 47907, USA
| | - Joonyoung Park
- Department of Industrial and Physical Pharmacy, Purdue University, 575 Stadium Mall Drive, West Lafayette, IN 47907, USA
| | - Ji Eun Park
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Republic of Korea
| | - Gihan N. Fetih
- Department of Pharmaceutics, Faculty of Pharmacy, Assiut University, Assiut 71526, Egypt
| | - Sozan S. Tous
- Department of Pharmaceutics, Faculty of Pharmacy, Assiut University, Assiut 71526, Egypt
| | - Wooin Lee
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Republic of Korea
| | - Yoon Yeo
- Department of Industrial and Physical Pharmacy, Purdue University, 575 Stadium Mall Drive, West Lafayette, IN 47907, USA
- Weldon School of Biomedical Engineering, Purdue University, West Lafayette, IN 47907, USA
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Fakhari A, Corcoran M, Schwarz A. Thermogelling properties of purified poloxamer 407. Heliyon 2017; 3:e00390. [PMID: 28920092 PMCID: PMC5576961 DOI: 10.1016/j.heliyon.2017.e00390] [Citation(s) in RCA: 133] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2017] [Revised: 07/31/2017] [Accepted: 08/16/2017] [Indexed: 12/14/2022] Open
Abstract
Poloxamers are triblock copolymers with a center block of hydrophobic polypropylene oxide (PPO) flanked by two hydrophilic polyethyleneoxide (PEO) blocks. Among this family of copolymers, poloxamer 407 is a non-ionic surfactant with reversible gelation properties above a particular polymer concentration and a particular temperature. Easy preparation of poloxamer 407 based sterile injectable formulations have made this copolymer a good candidate for drug delivery, specifically when controlled release of the drug is required. Previously, the applications of compendial poloxamer 407 preparations were demonstrated; however, low viscosity, poor elasticity, and sol-to-gel transition temperature (Tsol-gel) over a wide temperature range were observed. A purification process was introduced to eliminate impurities and low molecular weight copolymer molecules from the compendial poloxamer 407 resulting in higher viscosity values with Tsol-gel in a narrow temperature range. Here, poloxamer 407 was purified based on the proposed process and the rheological and analytical evaluation of the purified poloxamer 407 was conducted and compared to unpurified, compendial poloxamer 407. Then, the impact of poloxamer 407 concentration on gel formation was evaluated. For drug delivery applications, the effect of relevant buffer salts and the effect of addition of ethanol to the poloxamer 407 solutions were rheologically evaluated.
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Affiliation(s)
- Amir Fakhari
- Corresponding author at: 1 Medimmune Way, Gaithersburg, MD, 20878, United States.
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50
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Zhao LY, Zhang WM. Recent progress in drug delivery of pluronic P123: pharmaceutical perspectives. J Drug Target 2017; 25:471-484. [PMID: 28135859 DOI: 10.1080/1061186x.2017.1289538] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
This review focuses on recent investigations that used Pluronic P123 (P123) as pharmaceutical ingredients in vesicle, micelle, mixed micelle, in situ gel, tablet and emulsion. The main results from these studies show that P123 can significantly increase the stability of incorporated hydrophobic drugs with enhanced in vitro cytotoxicity and cellular uptake of anticancer drugs. Moreover, modified forms of P123 with RGD, folate or other targeted marker have shown its therapeutic potentials in various types of tumors and cancers. Furthermore, modified forms of P123 alone and/or mixed with other copolymers have less toxic effects and more tumor-specific delivery of anticancer drugs. They are promising materials as a nanoplatform for the drug delivery. Finally, the future perspectives of the field are briefly discussed.
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Affiliation(s)
- Li-Yan Zhao
- a Department of Pharmacy , Hebei North University , Zhangjiakou , PR China
| | - Wan-Ming Zhang
- a Department of Pharmacy , Hebei North University , Zhangjiakou , PR China
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