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Grosso R, Benito E, Carbajo-Gordillo AI, Díaz MJ, García-Martín MG, de-Paz MV. Advanced interpenetrating polymer networks for innovative gastroretentive formulations targeting Helicobacter pylori gastric colonization. Eur J Pharm Sci 2024; 200:106840. [PMID: 38909691 DOI: 10.1016/j.ejps.2024.106840] [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: 02/07/2024] [Revised: 04/25/2024] [Accepted: 06/20/2024] [Indexed: 06/25/2024]
Abstract
The escalating challenges of Helicobacter pylori-induced gastric complications, driven by rising antibiotic resistance and persistent cancer risks, underscore the demand for innovative therapeutic strategies. This study addresses this urgency through the development of tailored semi-interpenetrating polymer networks (semi-IPN) serving as gastroretentive matrices for amoxicillin (AMOX). They are biodegradable, absorb significant volume of simulated gastric fluid (swelling index > 360 %) and exhibit superporous microstructures, remarkable mucoadhesion, and buoyancy. The investigation includes assessment at pH 1.2 for comparative analysis with prior studies and, notably, at pH 5.0, reflecting the acidic environment in H. pylori-infected stomachs. The semi-IPN demonstrated gel-like structures, maintaining integrity throughout the 24-hour controlled release study, and disintegrating upon completing their intended function. Evaluated in gastroretentive drug delivery system performance, AMOX release at pH 1.2 and pH 5.0 over 24 h (10 %-100 %) employed experimental design methodology, elucidating dominant release mechanisms. Their mucoadhesive, buoyant, three-dimensional scaffold stability, and gastric biodegradability make them ideal for accommodating substantial AMOX quantities. Furthermore, exploring the inclusion of the potassium-competitive acid blocker (P-CAB) vonoprazan (VONO) in AMOX-loaded formulations shows promise for precise and effective drug delivery. This innovative approach has the potential to combat H. pylori infections, thereby preventing the gastric cancer induced by this pathogen.
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Affiliation(s)
- Roberto Grosso
- Departamento de Química Orgánica y Farmacéutica, Facultad de Farmacia, Universidad de Sevilla, C/ Prof. García González, n. 2, 41012, Seville, Spain
| | - Elena Benito
- Departamento de Química Orgánica y Farmacéutica, Facultad de Farmacia, Universidad de Sevilla, C/ Prof. García González, n. 2, 41012, Seville, Spain.
| | - Ana I Carbajo-Gordillo
- Departamento de Química Orgánica y Farmacéutica, Facultad de Farmacia, Universidad de Sevilla, C/ Prof. García González, n. 2, 41012, Seville, Spain
| | | | - M Gracia García-Martín
- Departamento de Química Orgánica y Farmacéutica, Facultad de Farmacia, Universidad de Sevilla, C/ Prof. García González, n. 2, 41012, Seville, Spain
| | - M-Violante de-Paz
- Departamento de Química Orgánica y Farmacéutica, Facultad de Farmacia, Universidad de Sevilla, C/ Prof. García González, n. 2, 41012, Seville, Spain.
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Grosso R, de-Paz MV. Thiolated-Polymer-Based Nanoparticles as an Avant-Garde Approach for Anticancer Therapies-Reviewing Thiomers from Chitosan and Hyaluronic Acid. Pharmaceutics 2021; 13:854. [PMID: 34201403 PMCID: PMC8227107 DOI: 10.3390/pharmaceutics13060854] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Revised: 06/04/2021] [Accepted: 06/05/2021] [Indexed: 12/21/2022] Open
Abstract
Thiomers (or thiolated polymers) have broken through as avant-garde approaches in anticancer therapy. Their distinguished reactivity and properties, closely linked to their final applications, justify the extensive research conducted on their preparation and use as smart drug-delivery systems (DDSs). Multiple studies have demonstrated that thiomer-rich nanoformulations can overcome major drawbacks found when administering diverse active pharmaceutical ingredients (APIs), especially in cancer therapy. This work focuses on providing a complete and concise review of the synthetic tools available to thiolate cationic and anionic polymers, in particular chitosan (CTS) and hyaluronic acid (HA), respectively, drawing attention to the most successful procedures. Their chemical reactivity and most relevant properties regarding their use in anticancer formulations are also discussed. In addition, a variety of NP formation procedures are outlined, as well as their use in cancer therapy, particularly for taxanes and siRNA. It is expected that the current work could clarify the main synthetic strategies available, with their scope and drawbacks, as well as provide some insight into thiomer chemistry. Therefore, this review can inspire new research strategies in the development of efficient formulations for the treatment of cancer.
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Affiliation(s)
| | - M.-Violante de-Paz
- Departamento Química Orgánica y Farmacéutica, Facultad de Farmacia, Universidad de Sevilla, 41012 Sevilla, Spain;
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Cocarta A, Hobzova R, Trchova M, Svojgr K, Kodetova M, Pochop P, Uhlik J, Sirc J. 2‐Hydroxyethyl Methacrylate Hydrogels for Local Drug Delivery: Study of Topotecan and Vincristine Sorption/Desorption Kinetics and Polymer‐Drug Interaction by ATR‐FTIR Spectroscopy. MACROMOL CHEM PHYS 2021. [DOI: 10.1002/macp.202100086] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Ana‐Irina Cocarta
- Institute of Macromolecular Chemistry Academy of Sciences of the Czech Republic Heyrovsky Sq. 2 Prague 6 162 06 Czech Republic
| | - Radka Hobzova
- Institute of Macromolecular Chemistry Academy of Sciences of the Czech Republic Heyrovsky Sq. 2 Prague 6 162 06 Czech Republic
| | - Miroslava Trchova
- Institute of Macromolecular Chemistry Academy of Sciences of the Czech Republic Heyrovsky Sq. 2 Prague 6 162 06 Czech Republic
| | - Karel Svojgr
- Department of Pediatric Hematology and Oncology, 2nd Faculty of Medicine Charles University and Motol University Hospital V Uvalu 84 Prague 5 150 06 Czech Republic
| | - Martina Kodetova
- Department of Ophthalmology, 2nd Faculty of Medicine Charles University and Motol University Hospital V Uvalu 84 Prague 5 150 06 Czech Republic
| | - Pavel Pochop
- Department of Ophthalmology, 2nd Faculty of Medicine Charles University and Motol University Hospital V Uvalu 84 Prague 5 150 06 Czech Republic
| | - Jiri Uhlik
- Department of Histology and Embryology, 2nd Faculty of Medicine Charles University V Uvalu 84 Prague 5 150 06 Czech Republic
| | - Jakub Sirc
- Institute of Macromolecular Chemistry Academy of Sciences of the Czech Republic Heyrovsky Sq. 2 Prague 6 162 06 Czech Republic
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Jindal A, Sarkar S, Alam A. Nanomaterials-Mediated Immunomodulation for Cancer Therapeutics. Front Chem 2021; 9:629635. [PMID: 33708759 PMCID: PMC7940769 DOI: 10.3389/fchem.2021.629635] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2020] [Accepted: 01/18/2021] [Indexed: 12/16/2022] Open
Abstract
Immunotherapy holds great promise in overcoming the limitations of conventional regimens for cancer therapeutics. There is growing interest among researchers and clinicians to develop novel immune-strategies for cancer diagnosis and treatment with better specificity and lesser adversity. Immunomodulation-based cancer therapies are rapidly emerging as an alternative approach that employs the host's own defense mechanisms to recognize and selectively eliminate cancerous cells. Recent advances in nanotechnology have pioneered a revolution in the field of cancer therapy. Several nanomaterials (NMs) have been utilized to surmount the challenges of conventional anti-cancer treatments like cytotoxic chemotherapy, radiation, and surgery. NMs offer a plethora of exceptional features such as a large surface area to volume ratio, effective loading, and controlled release of active drugs, tunable dimensions, and high stability. Moreover, they also possess the inherent property of interacting with living cells and altering the immune responses. However, the interaction between NMs and the immune system can give rise to unanticipated adverse reactions such as inflammation, necrosis, and hypersensitivity. Therefore, to ensure a successful and safe clinical application of immunomodulatory nanomaterials, it is imperative to acquire in-depth knowledge and a clear understanding of the complex nature of the interactions between NMs and the immune system. This review is aimed at providing an overview of the recent developments, achievements, and challenges in the application of immunomodulatory nanomaterials (iNMs) for cancer therapeutics with a focus on elucidating the mechanisms involved in the interplay between NMs and the host's immune system.
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Affiliation(s)
- Ajita Jindal
- School of Biotechnology, Jawaharlal Nehru University, New Delhi, India
| | - Sounik Sarkar
- Flowcytometry Facility, Modern Biology Department, University of Calcutta, Kolkata, India
| | - Aftab Alam
- Department of Clinical Neurosciences, University of Cambridge, Cambridge, United Kingdom
- Clare Hall, University of Cambridge, Cambridge, United Kingdom
- Charles River Laboratories, Cambridge Biomedical Campus, Cambridge, United Kingdom
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Benito E, Romero-Azogil L, Galbis E, de-Paz MV, García-Martín MG. Structurally simple redox polymersomes for doxorubicin delivery. Eur Polym J 2020. [DOI: 10.1016/j.eurpolymj.2020.109952] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Iglesias N, Galbis E, Díaz-Blanco MJ, Lucas R, Benito E, de-Paz MV. Nanostructured Chitosan-Based Biomaterials for Sustained and Colon-Specific Resveratrol Release. Int J Mol Sci 2019; 20:E398. [PMID: 30669264 PMCID: PMC6359380 DOI: 10.3390/ijms20020398] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2018] [Revised: 01/15/2019] [Accepted: 01/16/2019] [Indexed: 12/28/2022] Open
Abstract
In the present work, we demonstrate the preparation of chitosan-based composites as vehicles of the natural occurring multi-drug resveratrol (RES). Such systems are endowed with potential therapeutic effects on inflammatory bowel diseases (IBD), such as Crohn's disease (CD) and ulcerative colitis, through the sustained colonic release of RES from long-lasting mucoadhesive drug depots. The loading of RES into nanoparticles (NPs) was optimized regarding two independent variables: RES/polymer ratio, and temperature. Twenty experiments were carried out and a Box⁻Behnken experimental design was used to evaluate the significance of these independent variables related to encapsulation efficiency (EE). The enhanced RES EE values were achieved in 24 h at 39 °C and at RES/polymer ratio of 0.75:1 w/w. Sizes and polydispersities of the optimized NPs were studied by dynamic light scattering (DLS). Chitosan (CTS) dispersions containing the RES-loaded NPs were ionically gelled with tricarballylic acid to yield CTS-NPs composites. Macro- and microscopic features (morphology and porosity studied by SEM and spreadability), thermal stability (studied by TGA), and release kinetics of the RES-loaded CTS-NPs were investigated. Release patterns in simulated colon conditions for 48 h displayed significant differences between the NPs (final cumulative drug release: 79⁻81%), and the CTS-NPs composites (29⁻34%).
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Affiliation(s)
- Nieves Iglesias
- Dpto. Química Orgánica y Farmacéutica, Facultad de Farmacia, Universidad de Sevilla, 41012-Seville, Spain.
| | - Elsa Galbis
- Dpto. Química Orgánica y Farmacéutica, Facultad de Farmacia, Universidad de Sevilla, 41012-Seville, Spain.
| | - M Jesús Díaz-Blanco
- PRO2TECS. Departamento de Ingeniería Química, Facultad de Ciencias Experimentales, Campus El Carmen⁻21071-Huelva, Spain.
| | - Ricardo Lucas
- Dpto. Química Orgánica y Farmacéutica, Facultad de Farmacia, Universidad de Sevilla, 41012-Seville, Spain.
| | - Elena Benito
- Dpto. Química Orgánica y Farmacéutica, Facultad de Farmacia, Universidad de Sevilla, 41012-Seville, Spain.
| | - M-Violante de-Paz
- Dpto. Química Orgánica y Farmacéutica, Facultad de Farmacia, Universidad de Sevilla, 41012-Seville, Spain.
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Iglesias N, Galbis E, Romero-Azogil L, Benito E, Díaz-Blanco MJ, García-Martín MG, de-Paz MV. Experimental model design: exploration and optimization of customized polymerization conditions for the preparation of targeted smart materials by the Diels Alder click reaction. Polym Chem 2019. [DOI: 10.1039/c9py01076a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The experimental model design proposed herein has proved to be an indispensable tool to rapidly and easily elucidate the optimal polymerization conditions in the preparation of tailor-made responsive materials for biomedical applications.
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Affiliation(s)
- Nieves Iglesias
- Departamento de Química Orgánica y Farmacéutica
- Facultad de Farmacia
- Universidad de Sevilla
- 41012-Seville
- Spain
| | - Elsa Galbis
- Departamento de Química Orgánica y Farmacéutica
- Facultad de Farmacia
- Universidad de Sevilla
- 41012-Seville
- Spain
| | - Lucía Romero-Azogil
- Departamento de Química Orgánica y Farmacéutica
- Facultad de Farmacia
- Universidad de Sevilla
- 41012-Seville
- Spain
| | - Elena Benito
- Departamento de Química Orgánica y Farmacéutica
- Facultad de Farmacia
- Universidad de Sevilla
- 41012-Seville
- Spain
| | - M.-Jesús Díaz-Blanco
- PRO2TECS. Departamento de Ingeniería Química
- Facultad de Ciencias Experimentales
- Huelva
- Spain
| | - M.-Gracia García-Martín
- Departamento de Química Orgánica y Farmacéutica
- Facultad de Farmacia
- Universidad de Sevilla
- 41012-Seville
- Spain
| | - M.-Violante de-Paz
- Departamento de Química Orgánica y Farmacéutica
- Facultad de Farmacia
- Universidad de Sevilla
- 41012-Seville
- Spain
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