101
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Xiangbin Liu, Qu G, Yu Q, Zhang N, Wang L, Wang J. Synthesis of Poly(ethylene glycol) Grafted Polyamidoamine Dendrimer Hydrogels and Their Temperature and pH Sensitive Properties. POLYMER SCIENCE SERIES B 2020. [DOI: 10.1134/s1560090420040089] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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102
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Yoon HY, Yang HM, Kim CH, Goo YT, Kang MJ, Lee S, Choi YW. Current status of the development of intravesical drug delivery systems for the treatment of bladder cancer. Expert Opin Drug Deliv 2020; 17:1555-1572. [DOI: 10.1080/17425247.2020.1810016] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Ho Yub Yoon
- College of Pharmacy, Chung-Ang University, Seoul, Korea
| | - Hee Mang Yang
- College of Pharmacy, Chung-Ang University, Seoul, Korea
| | | | - Yoon Tae Goo
- College of Pharmacy, Chung-Ang University, Seoul, Korea
| | | | - Sangkil Lee
- College of Pharmacy, Keimyung University, Daegu, Korea
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103
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Kuddushi M, Ray D, Aswal V, Hoskins C, Malek N. Poly(vinyl alcohol) and Functionalized Ionic Liquid-Based Smart Hydrogels for Doxorubicin Release. ACS APPLIED BIO MATERIALS 2020; 3:4883-4894. [PMID: 35021732 DOI: 10.1021/acsabm.0c00393] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Limitations associated with the traditional cancer therapies prompt the scientific community to develop effective, safer, smarter, and targeted drug carriers that improve the efficiency of the drug carrier, reduce the adverse effects of the drug on the healthy cells, and help in preventing the cancer recurrences. This research aims to design a stimuli-responsive, self-healable, adhesive, and injectable polymeric hydrogel with an ester-functionalized ionic liquid as one of the additives to improve the efficiency of the anticancer drug in encapsulation and localized delivery. The designed polymeric hydrogel responds to intracellular biological stimuli (e.g., acidic pH of cancerous cells and temperature), changes the morphology through changing the shape and size of the gelator within the hydrogel matrix, and releases encapsulated doxorubicin (DOX) at the tumor site efficiently. Molecular interactions, gel morphology, and mechanical strength of the hydrogel were characterized through various analytical techniques, including small-angle neutron scattering. Adhesive properties of the polymeric hydrogel were measured by lap-shear strength tests and the biocompatibility and cellular drug uptake study on human breast cancer (MCF-7) and human cervical carcinoma cells (HeLa). The in vitro cytotoxicity and drug release study showed that the hybrid hydrogel is more effective at killing the cancerous cells, and the targeted release of DOX occurred at intracellular acidic pH. The polymeric hydrogel provides an efficient therapeutic approach for the encapsulation and release of the drug. Overall, the study offers a proof of concept to test the feasibility of the hydrogel system whether the hydrogel formulation helped or hindered the total cellular DOX trafficking.
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Affiliation(s)
- Muzammil Kuddushi
- Applied Chemistry Department, S.V. National Institute of Technology, Surat 395007, Gujarat, India.,Department of Pure & Applied Chemistry, University of Strathclyde, 99 George Street, Glasgow G1 1XQ, U.K
| | - Debes Ray
- Solid State Physics Division, Bhabha Atomic Research Center Trombay, Mumbai 400085, India
| | - Vinod Aswal
- Solid State Physics Division, Bhabha Atomic Research Center Trombay, Mumbai 400085, India
| | - Clare Hoskins
- Department of Pure & Applied Chemistry, University of Strathclyde, 99 George Street, Glasgow G1 1XQ, U.K
| | - Naved Malek
- Applied Chemistry Department, S.V. National Institute of Technology, Surat 395007, Gujarat, India
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104
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Bisht R, Nirmal S, Agrawal R, Jain GK, Nirmal J. Injectable in-situ gel depot system for targeted delivery of biologics to the retina. J Drug Target 2020; 29:46-59. [PMID: 32729731 DOI: 10.1080/1061186x.2020.1803886] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
In current clinical settings, frequent intravitreal (IVT) injections of anti-vascular endothelial growth factors are used due to their short in-vivo half-life and rapid clearance from the back of the eye. The IVT injections are associated with pain, risk of infection, retinal detachment, and financial burden. Biologics molecules can undergo physical, chemical, and enzymatic degradation during formulation development and in the biological environment. Moreover, the complex ocular structures also act as a rate-limiting barrier for these biologics. Thus, delivering stable and clinically relevant biologics concentration to the back of the eye is still a challenge. Compare to other drug delivery platforms, injectable in-situ gelling depot systems (IISGDs) have emerged as an effective system for biologics delivery. In this review, we have discussed various biologics used in ocular therapeutics and their associated challenges. Different routes of delivery and associated tissue barriers are also discussed. Different types of IISGDs developed to date for biologics delivery to the back of the eye were also covered. To conclude, various critical parameters related to the formulation development process and injectable depot systems that need careful consideration and further investigations were highlighted.
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Affiliation(s)
- Rohit Bisht
- Department of Pharmacy, Translational Pharmaceutics Research Laboratory, Birla Institute of Technology and Science (BITS)-Pilani, Hyderabad, Telangana, India
| | - Sonali Nirmal
- School of Material Science and Engineering, Nanyang Technological University, Singapore, Singapore.,Incozen Therapeutics Pvt. Ltd., Hyderabad, Telangana, India (Current affiliation)
| | - Rupesh Agrawal
- School of Material Science and Engineering, Nanyang Technological University, Singapore, Singapore.,National Healthcare Group Eye Institute, Tan Tock Seng Hospital, Singapore, Singapore
| | - Gaurav K Jain
- Department of Pharmaceutics, School of Pharmaceutical Sciences, Delhi Pharmaceutical Sciences and Research University, New Delhi, India
| | - Jayabalan Nirmal
- Department of Pharmacy, Translational Pharmaceutics Research Laboratory, Birla Institute of Technology and Science (BITS)-Pilani, Hyderabad, Telangana, India
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105
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Popescu R, Ghica MV, Dinu-Pîrvu CE, Anuța V, Lupuliasa D, Popa L. New Opportunity to Formulate Intranasal Vaccines and Drug Delivery Systems Based on Chitosan. Int J Mol Sci 2020; 21:ijms21145016. [PMID: 32708704 PMCID: PMC7404068 DOI: 10.3390/ijms21145016] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Revised: 07/12/2020] [Accepted: 07/13/2020] [Indexed: 12/11/2022] Open
Abstract
In an attempt to develop drug delivery systems that bypass the blood–brain barrier (BBB) and prevent liver and intestinal degradation, it was concluded that nasal medication meets these criteria and can be used for drugs that have these drawbacks. The aim of this review is to present the influence of the properties of chitosan and its derivatives (mucoadhesion, permeability enhancement, surface tension, and zeta potential) on the development of suitable nasal drug delivery systems and on the nasal bioavailability of various active pharmaceutical ingredients. Interactions between chitosan and proteins, lipids, antigens, and other molecules lead to complexes that have their own applications or to changing characteristics of the substances involved in the bond (conformational changes, increased stability or solubility, etc.). Chitosan and its derivatives have their own actions (antibacterial, antifungal, immunostimulant, antioxidant, etc.) and can be used as such or in combination with other molecules from the same class to achieve a synergistic effect. The applicability of the properties is set out in the second part of the paper, where nasal formulations based on chitosan are described (vaccines, hydrogels, nanoparticles, nanostructured lipid carriers (NLC), powders, emulsions, etc.).
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Affiliation(s)
- Roxana Popescu
- Department of Physical and Colloidal Chemistry, Faculty of Pharmacy, University of Medicine and Pharmacy “Carol Davila”, 020956 Bucharest, Romania; (R.P.); (M.V.G.); (V.A.); (L.P.)
| | - Mihaela Violeta Ghica
- Department of Physical and Colloidal Chemistry, Faculty of Pharmacy, University of Medicine and Pharmacy “Carol Davila”, 020956 Bucharest, Romania; (R.P.); (M.V.G.); (V.A.); (L.P.)
| | - Cristina-Elena Dinu-Pîrvu
- Department of Physical and Colloidal Chemistry, Faculty of Pharmacy, University of Medicine and Pharmacy “Carol Davila”, 020956 Bucharest, Romania; (R.P.); (M.V.G.); (V.A.); (L.P.)
- Correspondence:
| | - Valentina Anuța
- Department of Physical and Colloidal Chemistry, Faculty of Pharmacy, University of Medicine and Pharmacy “Carol Davila”, 020956 Bucharest, Romania; (R.P.); (M.V.G.); (V.A.); (L.P.)
| | - Dumitru Lupuliasa
- Department of Pharmaceutical Technology and Biopharmacy, Faculty of Pharmacy, University of Medicine and Pharmacy ”Carol Davila”, 020956 Bucharest, Romania;
| | - Lăcrămioara Popa
- Department of Physical and Colloidal Chemistry, Faculty of Pharmacy, University of Medicine and Pharmacy “Carol Davila”, 020956 Bucharest, Romania; (R.P.); (M.V.G.); (V.A.); (L.P.)
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106
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Physicochemical Investigations of Chitosan-Based Hydrogels Containing Aloe Vera Designed for Biomedical Use. MATERIALS 2020; 13:ma13143073. [PMID: 32660077 PMCID: PMC7412484 DOI: 10.3390/ma13143073] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Revised: 07/05/2020] [Accepted: 07/07/2020] [Indexed: 12/31/2022]
Abstract
In this work, synthesis and investigations on chitosan-based hydrogels modified with Aloe vera juice are presented. These materials were synthesized by UV radiation. Investigations involved analysis of chemical structure by FTIR spectroscopy, sorption properties in physiological liquids, strength properties by texture analyzer, surface topography by Atomic Force Microscopy (AFM technique), and in vitro cytotoxicity by MTT test using L929 murine fibroblasts. Particular attention was focused both on determining the impact of the amount and the molecular weight of the crosslinker used for the synthesis as well as on the introduced additive on the properties of hydrogels. It was proven that modified hydrogels exhibited higher swelling ability. Introduced additive affected the tensile strength of hydrogels—modified materials showed 23% higher elongation. The greater amount of the crosslinker used in the synthesis, the more compact the structure, leading to the lower elasticity and lower sorption of hydrogels was reported. Above 95%, murine fibroblasts remained viable after 24 h incubation with hydrogels. It indicates that tested materials did not exhibit cytotoxicity toward these lines. Additionally, materials with Aloe vera juice were characterized by lower surface roughness. Conducted investigations allowed us to state that such modified hydrogels may be considered as useful for biomedical purposes.
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107
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Gong Y, Wu GH, Zhang LY, Zhang Z, Liao YH, Liu XT. Effect of nintedanib thermo-sensitive hydrogel on neovascularization in alkali burn rat model. Int J Ophthalmol 2020; 13:879-885. [PMID: 32566497 DOI: 10.18240/ijo.2020.06.04] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Accepted: 04/13/2020] [Indexed: 01/16/2023] Open
Abstract
AIM To investigate the effects of nintedanib thermo-sensitive hydrogel (NTH) on neovascularization and related markers in corneal alkali burns of Wistar rats. METHODS NTH was prepared by grinding, and its phase-transition temperature was determined. Thirty specific-pathogen-free Wistar rats served as a model of corneal alkali burn in the right eye were randomly divided into 3 groups (n=10, each): model group treated with 0.9% saline once a day, NTH group with 0.2% nintedanib b.i.d, and dexamethasone group with dexamethasone ointment once a day. The left eye of rats served as the controls. The corneal transparency was observed under a slit-lamp microscope, and the area of neovascularization was calculated. On day 7, the rats were sacrificed, and the cornea was removed and embedded with paraffin, then stained with hematoxylin-eosin, and the expression of vascular endothelial growth factor receptor 2 (VEGFR-2) and CD31 in the corneal tissues of each group was detected by immunofluorescence. RESULTS The phase-transition temperature of nintedanib obtained by grinding was 37°C after adding artificial tears. The results of the alkali burn model indicated that the growth rate of neovascularization in the NTH group was slower than that in the model group, and the neovascularization area was significantly smaller than that in the model group (P<0.05). Moreover, CD31 and VEGFR-2 expression levels in the NTH group were significantly lower than those in the model group. CONCLUSION NTH becomes colloidal at body temperature, which is beneficial for releasing the drug slowly and can significantly inhibit the neovascularization of corneal induced by alkali burn in rats.
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Affiliation(s)
- Yan Gong
- Department of Ophthalmology, Ningbo Eye Hospital, Ningbo 315040, Zhejiang Province, China
| | - Guo-Hai Wu
- Department of Ophthalmology, Ningbo Eye Hospital, Ningbo 315040, Zhejiang Province, China
| | - Ling-Yi Zhang
- Department of Ophthalmology, Ningbo Eye Hospital, Ningbo 315040, Zhejiang Province, China
| | - Zhe Zhang
- Department of Ophthalmology, Ningbo Eye Hospital, Ningbo 315040, Zhejiang Province, China
| | - Yan-Hong Liao
- Department of Ophthalmology, Ningbo Eye Hospital, Ningbo 315040, Zhejiang Province, China
| | - Xiao-Tian Liu
- Department of Ophthalmology, Ningbo Eye Hospital, Ningbo 315040, Zhejiang Province, China
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108
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Ziminska M, Wilson JJ, McErlean E, Dunne N, McCarthy HO. Synthesis and Evaluation of a Thermoresponsive Degradable Chitosan-Grafted PNIPAAm Hydrogel as a "Smart" Gene Delivery System. MATERIALS 2020; 13:ma13112530. [PMID: 32498464 PMCID: PMC7321466 DOI: 10.3390/ma13112530] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 05/28/2020] [Accepted: 05/29/2020] [Indexed: 12/18/2022]
Abstract
Thermoresponsive hydrogels demonstrate tremendous potential as sustained drug delivery systems. However, progress has been limited as formulation of a stable biodegradable thermosensitive hydrogel remains a significant challenge. In this study, free radical polymerization was exploited to formulate a biodegradable thermosensitive hydrogel characterized by sustained drug release. Highly deacetylated chitosan and N-isopropylacrylamide with distinctive physical properties were employed to achieve a stable, hydrogel network at body temperature. The percentage of chitosan was altered within the copolymer formulations and the subsequent physical properties were characterized using 1H-NMR, FTIR, and TGA. Viscoelastic, swelling, and degradation properties were also interrogated. The thermoresponsive hydrogels were loaded with RALA/pEGFP-N1 nanoparticles and release was examined. There was sustained release of nanoparticles over three weeks and, more importantly, the nucleic acid cargo remained functional and this was confirmed by successful transfection of the NCTC-929 fibroblast cell line. This tailored thermoresponsive hydrogel offers an option for sustained delivery of macromolecules over a prolonged considerable period.
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Affiliation(s)
- Monika Ziminska
- School of Pharmacy, Queen’s University of Belfast, 97 Lisburn Road, Belfast BT9 7BL, UK; (M.Z.); (J.J.W.); (E.M.)
| | - Jordan J. Wilson
- School of Pharmacy, Queen’s University of Belfast, 97 Lisburn Road, Belfast BT9 7BL, UK; (M.Z.); (J.J.W.); (E.M.)
- School of Chemistry and Chemical Engineering, Queen’s University of Belfast, Belfast BT9 5AG, UK
| | - Emma McErlean
- School of Pharmacy, Queen’s University of Belfast, 97 Lisburn Road, Belfast BT9 7BL, UK; (M.Z.); (J.J.W.); (E.M.)
| | - Nicholas Dunne
- School of Pharmacy, Queen’s University of Belfast, 97 Lisburn Road, Belfast BT9 7BL, UK; (M.Z.); (J.J.W.); (E.M.)
- School of Mechanical and Manufacturing Engineering, Dublin City University, Dublin 9, Ireland
- Centre for Medical Engineering Research, School of Mechanical and Manufacturing Engineering, Dublin City University, Dublin 9, Ireland
- Department of Mechanical and Manufacturing Engineering, School of Engineering, Trinity College Dublin, Dublin 2, Ireland
- Advanced Manufacturing Research Centre (I-Form), School of Mechanical and Manufacturing Engineering, Dublin City University, Glasnevin, Dublin 9, Ireland
- Advanced Materials and Bioengineering Research Centre (AMBER), Trinity College Dublin, Dublin 9, Ireland
- Advanced Processing Technology Research Centre, Dublin City University, Dublin 9, Ireland
- Trinity Centre for Biomedical Engineering, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin 2, Ireland
- Correspondence: (N.D.); (H.O.M.); Tel.: +353-(0)1-7005712 (N.D.); +44-(0)28-90972149/1993 (H.O.M.)
| | - Helen O. McCarthy
- School of Pharmacy, Queen’s University of Belfast, 97 Lisburn Road, Belfast BT9 7BL, UK; (M.Z.); (J.J.W.); (E.M.)
- School of Chemical Sciences, Dublin City University, Dublin 9, Ireland
- Correspondence: (N.D.); (H.O.M.); Tel.: +353-(0)1-7005712 (N.D.); +44-(0)28-90972149/1993 (H.O.M.)
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109
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Boffito M, Torchio A, Tonda-Turo C, Laurano R, Gisbert-Garzarán M, Berkmann JC, Cassino C, Manzano M, Duda GN, Vallet-Regí M, Schmidt-Bleek K, Ciardelli G. Hybrid Injectable Sol-Gel Systems Based on Thermo-Sensitive Polyurethane Hydrogels Carrying pH-Sensitive Mesoporous Silica Nanoparticles for the Controlled and Triggered Release of Therapeutic Agents. Front Bioeng Biotechnol 2020; 8:384. [PMID: 32509740 PMCID: PMC7248334 DOI: 10.3389/fbioe.2020.00384] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2020] [Accepted: 04/07/2020] [Indexed: 01/25/2023] Open
Abstract
Injectable therapeutic formulations locally releasing their cargo with tunable kinetics in response to external biochemical/physical cues are gaining interest in the scientific community, with the aim to overcome the cons of traditional administration routes. In this work, we proposed an alternative solution to this challenging goal by combining thermo-sensitive hydrogels based on custom-made amphiphilic poly(ether urethane)s (PEUs) and mesoporous silica nanoparticles coated with a self-immolative polymer sensitive to acid pH (MSN-CS-SIP). By exploiting PEU chemical versatility, Boc-protected amino groups were introduced as PEU building block (PEU-Boc), which were then subjected to a deprotection reaction to expose pendant primary amines along the polymer backbone (PEU-NH2, 3E18 -NH2/gPEU-NH2) with the aim to accelerate system response to external acid pH environment. Then, thermo-sensitive hydrogels were designed (15% w/v) showing fast gelation in physiological conditions (approximately 5 min), while no significant changes in gelation temperature and kinetics were induced by the Boc-deprotection. Conversely, free amines in PEU-NH2 effectively enhanced and accelerated acid pH transfer (pH 5) through hydrogel thickness (PEU-Boc and PEU-NH2 gels covered approximately 42 and 52% of the pH delta between their initial pH and the pH of the surrounding buffer within 30 min incubation, respectively). MSN-CS-SIP carrying a fluorescent cargo as model drug (MSN-CS-SIP-Ru) were then encapsulated within the hydrogels with no significant effects on their thermo-sensitivity. Injectability and in situ gelation at 37°C were demonstrated ex vivo through sub-cutaneous injection in rodents. Moreover, MSN-CS-SIP-Ru-loaded gels turned out to be detectable through the skin by IVIS imaging. Cargo acid pH-triggered delivery from PEU-Boc and PEU-NH2 gels was finally demonstrated through drug release tests in neutral and acid pH environments (in acid pH environment approximately 2-fold higher cargo release). Additionally, acid-triggered payload release from PEU-NH2 gels was significantly higher compared to PEU-Boc systems at 3 and 4 days incubation. The herein designed hybrid injectable formulations could thus represent a significant step forward in the development of multi-stimuli sensitive drug carriers. Indeed, being able to adapt their behavior in response to biochemical cues from the surrounding physio-pathological environment, these formulations can effectively trigger the release of their payload according to therapeutic needs.
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Affiliation(s)
- Monica Boffito
- Department of Mechanical and Aerospace Engineering, Politecnico di Torino, Turin, Italy
| | - Alessandro Torchio
- Department of Mechanical and Aerospace Engineering, Politecnico di Torino, Turin, Italy
- Department of Surgical Sciences, Università degli Studi di Torino, Turin, Italy
| | - Chiara Tonda-Turo
- Department of Mechanical and Aerospace Engineering, Politecnico di Torino, Turin, Italy
| | - Rossella Laurano
- Department of Mechanical and Aerospace Engineering, Politecnico di Torino, Turin, Italy
- Department of Surgical Sciences, Università degli Studi di Torino, Turin, Italy
| | - Miguel Gisbert-Garzarán
- Departamento de Química en Ciencias Farmacéuticas, Instituto de Investigación Sanitaria del Hospital, Universidad Complutense de Madrid, Madrid, Spain
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Madrid, Spain
| | - Julia C. Berkmann
- Julius Wolff Institut, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Claudio Cassino
- Department of Science and Technological Innovation, Università del Piemonte Orientale, Alessandria, Italy
| | - Miguel Manzano
- Departamento de Química en Ciencias Farmacéuticas, Instituto de Investigación Sanitaria del Hospital, Universidad Complutense de Madrid, Madrid, Spain
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Madrid, Spain
| | - Georg N. Duda
- Julius Wolff Institut, Charité - Universitätsmedizin Berlin, Berlin, Germany
- BIH Center for Regenerative Therapies, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - María Vallet-Regí
- Departamento de Química en Ciencias Farmacéuticas, Instituto de Investigación Sanitaria del Hospital, Universidad Complutense de Madrid, Madrid, Spain
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Madrid, Spain
| | - Katharina Schmidt-Bleek
- Julius Wolff Institut, Charité - Universitätsmedizin Berlin, Berlin, Germany
- BIH Center for Regenerative Therapies, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Gianluca Ciardelli
- Department of Mechanical and Aerospace Engineering, Politecnico di Torino, Turin, Italy
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Shan H, Li K, Zhao D, Chi C, Tan Q, Wang X, Yu J, Piao M. Locally Controlled Release of Methotrexate and Alendronate by Thermo-Sensitive Hydrogels for Synergistic Inhibition of Osteosarcoma Progression. Front Pharmacol 2020; 11:573. [PMID: 32508628 PMCID: PMC7248331 DOI: 10.3389/fphar.2020.00573] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2020] [Accepted: 04/15/2020] [Indexed: 12/28/2022] Open
Abstract
Osteosarcoma (OS) is a serious primary bone malignant tumor that can easily affect children and adolescents. Chemotherapy is one of the important and feasible clinical treatment strategies for the treatment of OS at present, which is severely limited due to insufficient retention time, poor penetration ability, and serious side effects of current anti-tumor drug preparations. In this work, a novel injectable thermo-sensitive hydrogel (mPEG45-PLV19) loaded with methotrexate and alendronate, and the sustained release at the tumor site synergistically inhibited the progression of OS. The mPEG45-PLV19 shows excellent physical and chemical properties. Compared with other treatment groups, the in vivo treatment of gel+ methotrexate + alendronate effectively inhibited the growth of tumor. More importantly, it significantly reduced bone destruction and lung metastasis caused by OS. Therefore, this injectable thermo-sensitive hydrogel drug delivery system has broad prospects for OS chemotherapy.
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Affiliation(s)
- Hongli Shan
- Department of Clinical Laboratory, The First Hospital of Jilin University, Changchun, China
| | - Ke Li
- Department of Orthopedics, the Fourth Affiliated Hospital of China Medical University, Shenyang, China
| | - Duoyi Zhao
- Department of Orthopedics, the Fourth Affiliated Hospital of China Medical University, Shenyang, China
| | - Changliang Chi
- Department of Urology, the First Hospital of Jilin University, Changchun, China
| | - Qinyuan Tan
- Department of Urology, the First Hospital of Jilin University, Changchun, China
| | - Xiaoqing Wang
- Department of Urology, the First Hospital of Jilin University, Changchun, China
| | - Jinhai Yu
- Department of Gastrointestinal Surgery, The First Hospital of Jilin University, Changchun, China
| | - Meihua Piao
- Department of Anesthesiology, The First Hospital of Jilin University, Changchun, China
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111
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Doxorubicin Loaded Poloxamer Thermosensitive Hydrogels: Chemical, Pharmacological and Biological Evaluation. Molecules 2020; 25:molecules25092219. [PMID: 32397328 PMCID: PMC7248767 DOI: 10.3390/molecules25092219] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Revised: 05/04/2020] [Accepted: 05/07/2020] [Indexed: 12/18/2022] Open
Abstract
(1) Background: doxorubicin is a potent chemotherapeutic agent, but it has limitations regarding its side effects and therapy resistance. Hydrogels potentially deal with these problems, but several characterizations need to be optimized to better understand how hydrogel assisted chemotherapy works. Poloxamer 407 (P407) hydrogels were mixed with doxorubicin and physico-chemical, biological, and pharmacological characterizations were considered. (2) Methods: hydrogels were prepared by mixing P407 in PBS at 4 °C. Doxorubicin was added upon solutions became clear. Time-to-gelation, hydrogel morphology, and micelles were studied first. The effects of P407-doxorubicin were evaluated on MC-38 colon cancer cells. Furthermore, doxorubicin release was assessed and contrasted with non-invasive in vivo whole body fluorescence imaging. (3) Results: 25% P407 had favorable gelation properties with pore sizes of 30–180 µm. P407 micelles were approximately 5 nm in size. Doxorubicin was fully released in vitro from 25% P407 hydrogel within 120 h. Furthermore, P407 micelles strongly enhanced the anti-neoplastic effects of doxorubicin on MC-38 cells. In vivo fluorescence imaging revealed that hydrogels retained fluorescence signals at the injection site for 168 h. (4) Conclusions: non-invasive imaging showed how P407 gels retained drug at the injection site. Doxorubicin P407 micelles strongly enhanced the anti-tumor effects.
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112
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Engineering approaches for drug delivery systems production and characterization. Int J Pharm 2020; 581:119267. [DOI: 10.1016/j.ijpharm.2020.119267] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2020] [Revised: 03/22/2020] [Accepted: 03/24/2020] [Indexed: 12/17/2022]
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113
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Kohl K. Comparison of Dynamic Light Scattering and Rheometrical Methods to Determine the Gel Point of a Radically Polymerized Hydrogel under Mechanical Shear. MICROMACHINES 2020; 11:mi11050462. [PMID: 32354108 PMCID: PMC7281437 DOI: 10.3390/mi11050462] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Revised: 04/16/2020] [Accepted: 04/27/2020] [Indexed: 11/29/2022]
Abstract
The phase transition of nanocomposite hydrogels made of N-isopropylacrylamide (NIPAm) and clay (Laponite® XLS) was investigated under mechanical shear influencing the gelation. The hydrogels were synthesized by free radical polymerization. For the processing of cross-linked gels, the phase transition (liquid–solid) and its dependence on mechanical stress are of paramount importance. On the one hand, the determination of the gel point (tg) is possible with rheometry and, on the other hand, with dynamic light scattering (DLS). With rotational rheometry, by identifying the abrupt increase of viscosity, the gel point is evaluated. The DSL is an alternative method to rheometry, to investigate hydrogels under the action of the shear flow, to make results comparable to the rheometric investigations, with and without shear. Experimental parameters were chosen based on preparatory work to obtain comparable results regarding the determination of the gel point of a radically polymerized NIPAm hydrogel.
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Affiliation(s)
- Katinka Kohl
- Chair of Magnetofluiddynamics, Measuring and Automation Technology, Technische Universität Dresden, 01069 Dresden, Germany
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114
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Khodeir M, Jia H, Antoun S, Friebe C, Schubert US, Lu Y, Van Ruymbeke E, Gohy J. Synthesis and characterization of hydrogels containing
redox‐responsive
2,2,6,6
‐
tetramethylpiperidinyloxy
methacrylate and
thermoresponsive
N
‐isopropylacrylamide
. JOURNAL OF POLYMER SCIENCE 2020. [DOI: 10.1002/pol.20200172] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Miriam Khodeir
- Institute of Condensed Matter and Nanosciences (IMCN), Bio and Soft Matter (BSMA) Université Catholique de Louvain (UCL) Louvain‐la‐Neuve Belgium
| | - He Jia
- Institute of Condensed Matter and Nanosciences (IMCN), Bio and Soft Matter (BSMA) Université Catholique de Louvain (UCL) Louvain‐la‐Neuve Belgium
| | - Sayed Antoun
- Department of Chemistry, Faculty of Science Section III ‐ North Campus‐Tripoli Lebanese University (UL) Lebanon
| | - Christian Friebe
- Laboratory of Organic and Macromolecular Chemistry (IOMC) Friedrich Schiller Universität Jena Jena Germany
| | - Ulrich S. Schubert
- Laboratory of Organic and Macromolecular Chemistry (IOMC) Friedrich Schiller Universität Jena Jena Germany
| | - Yan Lu
- EM‐IEES Institute for Electrochemical Energy Storage Helmholtz‐Zentrum Berlin für Materialien und Energie Berlin Germany
- Institute of Chemistry University of Potsdam Potsdam Germany
| | - Evelyne Van Ruymbeke
- Institute of Condensed Matter and Nanosciences (IMCN), Bio and Soft Matter (BSMA) Université Catholique de Louvain (UCL) Louvain‐la‐Neuve Belgium
| | - Jean‐François Gohy
- Institute of Condensed Matter and Nanosciences (IMCN), Bio and Soft Matter (BSMA) Université Catholique de Louvain (UCL) Louvain‐la‐Neuve Belgium
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115
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Novel and revisited approaches in nanoparticle systems for buccal drug delivery. J Control Release 2020; 320:125-141. [DOI: 10.1016/j.jconrel.2020.01.006] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Revised: 01/02/2020] [Accepted: 01/04/2020] [Indexed: 12/15/2022]
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116
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Pastor Y, Ting I, Martínez AL, Irache JM, Gamazo C. Intranasal delivery system of bacterial antigen using thermosensitive hydrogels based on a Pluronic-Gantrez conjugate. Int J Pharm 2020; 579:119154. [PMID: 32081801 DOI: 10.1016/j.ijpharm.2020.119154] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Revised: 02/12/2020] [Accepted: 02/15/2020] [Indexed: 02/07/2023]
Abstract
Thermosensitive hydrogels have been studied as feasible needle-avoidance alternative to vaccine delivery. In this work, we report the development of a new thermal-sensitive hydrogel for intranasal vaccine delivery. This delivery system was formulated with a combination of the polymer Gantrez® AN119 and the surfactant Pluronic® F127 (PF127), with a high biocompatibility, biodegradability and immunoadjuvant properties. Shigella flexneri outer membrane vesicles were used as the antigen model. A stable and easy-to-produce thermosensitive hydrogel which allowed the incorporation of the OMV-antigenic complex was successfully synthetized. A rapid gel formation was achieved at body temperature, which prolonged the OMV-antigens residence time in the nasal cavity of BALB/c mice when compared to intranasal delivery of free-OMVs. In addition, the bacterial antigens showed a fast release profile from the hydrogel in vitro, with a peak at 30 min of incubation at 37 °C. Hydrogels appeared to be non-cytotoxic in the human epithelial HeLa cell line and nose epithelium as well, as indicated by the absence of histopathological features. Immunohistochemical studies revealed that after intranasal administration the OMVs reached the nasal associated lymphoid tissue. These results support the use of here described thermosensitive hydrogels as a potential platform for intranasal vaccination.
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Affiliation(s)
- Yadira Pastor
- Department of Microbiology and Parasitology, Institute of Tropical Health University of Navarra, 31008 Pamplona, Spain
| | - Isaiah Ting
- Department of Microbiology and Parasitology, Institute of Tropical Health University of Navarra, 31008 Pamplona, Spain
| | - Ana Luisa Martínez
- Department of Technology and Pharmaceutical Chemistry, University of Navarra, Spain
| | - Juan Manuel Irache
- Department of Technology and Pharmaceutical Chemistry, University of Navarra, Spain
| | - Carlos Gamazo
- Department of Microbiology and Parasitology, Institute of Tropical Health University of Navarra, 31008 Pamplona, Spain.
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117
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Nguyen DD, Lai JY. Advancing the stimuli response of polymer-based drug delivery systems for ocular disease treatment. Polym Chem 2020. [DOI: 10.1039/d0py00919a] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Recent exploitations of stimuli-responsive polymers as ophthalmic drug delivery systems for the treatment of eye diseases are summarized and discussed.
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Affiliation(s)
- Duc Dung Nguyen
- Graduate Institute of Biomedical Engineering
- Chang Gung University
- Taoyuan 33302
- Republic of China
| | - Jui-Yang Lai
- Graduate Institute of Biomedical Engineering
- Chang Gung University
- Taoyuan 33302
- Republic of China
- Department of Ophthalmology
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118
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Pereira Gomes I, Aparecida Duarte J, Chaves Maia AL, Rubello D, Townsend DM, Branco de Barros AL, Leite EA. Thermosensitive Nanosystems Associated with Hyperthermia for Cancer Treatment. Pharmaceuticals (Basel) 2019; 12:E171. [PMID: 31775273 PMCID: PMC6958340 DOI: 10.3390/ph12040171] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2019] [Revised: 11/20/2019] [Accepted: 11/21/2019] [Indexed: 12/20/2022] Open
Abstract
Conventional chemotherapy regimens have limitations due to serious adverse effects. Targeted drug delivery systems to reduce systemic toxicity are a powerful drug development platform. Encapsulation of antitumor drug(s) in thermosensitive nanocarriers is an emerging approach with a promise to improve uptake and increase therapeutic efficacy, as they can be activated by hyperthermia selectively at the tumor site. In this review, we focus on thermosensitive nanosystems associated with hyperthermia for the treatment of cancer, in preclinical and clinical use.
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Affiliation(s)
- Isabela Pereira Gomes
- Faculdade de Farmácia, Universidade Federal de Minas Gerais, 31279-901 Belo Horizonte, Brazil
| | | | - Ana Luiza Chaves Maia
- Faculdade de Farmácia, Universidade Federal de Minas Gerais, 31279-901 Belo Horizonte, Brazil
| | - Domenico Rubello
- Department of Nuclear Medicine, Radiology, Neuroradiology, Medical Physics, Clinical Laboratory, Microbiology, Pathology, Trasfusional Medicine, Santa Maria della Misericordia Hospital, 45100 Rovigo, Italy
| | - Danyelle M. Townsend
- Department of Drug Discovery and Pharmaceutical Sciences, Medical University of South Carolina, Charleston, SC 29425, USA
| | | | - Elaine Amaral Leite
- Faculdade de Farmácia, Universidade Federal de Minas Gerais, 31279-901 Belo Horizonte, Brazil
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