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Nezadi M, Keshvari H, Shokrolahi F, Shokrollahi P. Injectable, self-healing hydrogels based on gelatin, quaternized chitosan, and laponite as localized celecoxib delivery system for nucleus pulpous repair. Int J Biol Macromol 2024; 266:131337. [PMID: 38574911 DOI: 10.1016/j.ijbiomac.2024.131337] [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: 11/21/2023] [Revised: 03/19/2024] [Accepted: 04/01/2024] [Indexed: 04/06/2024]
Abstract
Utilization of injectable hydrogels stands as a paradigm of minimally invasive intervention in the context of intervertebral disc degeneration treatment. Restoration of nucleus pulposus (NP) function exerts a profound influence in alleviating back pain. This study introduces an innovative class of injectable shear-thinning hydrogels, founded on quaternized chitosan (QCS), gelatin (GEL), and laponite (LAP) with the capacity for sustained release of the anti-inflammatory drug, celecoxib (CLX). First, synthesis of Magnesium-Aluminum-Layered double hydroxide (LDH) was achieved through a co-precipitation methodology, as a carrier for celecoxib and a source of Mg ions. Intercalation of celecoxib within LDH layers (LDH-CLX) was verified through a battery of analytical techniques, including FTIR, XRD, SEM, EDAX, TGA and UV-visible spectroscopy confirmed a drug loading efficiency of 39.22 ± 0.09 % within LDH. Then, LDH-CLX was loaded in the optimal GEL-QCS-LAP hydrogel under physiological conditions. Release behavior (15 days profile), mechanical properties, swelling ratio, and degradation rate of the resulting composite were evaluated. A G* of 15-47 kPa was recorded for the hydrogel at 22-40 °C, indicating gel stability in this temperature range. Self-healing properties and injectability of the composite were proved by rheological measurements. Also, ex vivo injection into intervertebral disc of sheep, evidenced in situ forming and NP cavity filling behavior of the hydrogel. Support of GEL-QCS-LAP/LDH-CLX (containing mg2+ ions) for viability and proliferation (from ~94 % on day 1 to ~134 % on day 7) of NP cells proved using MTT assay, DAPI and Live/Dead assays. The hydrogel could significantly upregulate secretion of glycosaminoglycan (GAG, from 4.68 ± 0.1 to 27.54 ± 1.0 μg/ml), when LHD-CLX3% was loaded. We conclude that presence of mg2+ ion and celecoxib in the hydrogel can lead to creation of a suitable environment that encourages GAG secretion. In conclusion, the formulated hydrogel holds promise as a minimally invasive candidate for degenerative disc repair.
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Affiliation(s)
- Maryam Nezadi
- Department of Biomedical Engineering, Amirkabir University of Technology, Tehran, Iran; Department of Biomaterials, Faculty of Science, Iran Polymer and Petrochemical Institute, Tehran, Iran
| | - Hamid Keshvari
- Department of Biomedical Engineering, Amirkabir University of Technology, Tehran, Iran.
| | - Fatemeh Shokrolahi
- Department of Biomaterials, Faculty of Science, Iran Polymer and Petrochemical Institute, Tehran, Iran
| | - Parvin Shokrollahi
- Department of Biomaterials, Faculty of Science, Iran Polymer and Petrochemical Institute, Tehran, Iran.
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Ashwani PV, Gopika G, Arun Krishna KV, Jose J, John F, George J. Stimuli-Responsive and Multifunctional Nanogels in Drug Delivery. Chem Biodivers 2023; 20:e202301009. [PMID: 37718283 DOI: 10.1002/cbdv.202301009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Revised: 09/14/2023] [Accepted: 09/17/2023] [Indexed: 09/19/2023]
Abstract
Nanogels represent promising drug delivery systems in the biomedical field, designed to overcome challenges associated with standard treatment approaches. Stimuli-responsive nanogels, often referred to as intelligent materials, have garnered significant attention for their potential to enhance control over properties such as drug release and targeting. Furthermore, researchers have recently explored the application of nanogels in diverse sectors beyond biomedicine including sensing materials, catalysts, or adsorbents for environmental applications. However, to fully harness their potential as practical delivery systems, further research is required to better understand their pharmacokinetic behaviour, interactions between nanogels and bio distributions, as well as toxicities. One promising future application of stimuli-responsive multifunctional nanogels is their use as delivery agents in cancer treatment, offering an alternative to overcome the challenges with conventional approaches. This review discusses various synthetic methods employed in developing nanogels as efficient carriers for drug delivery in cancer treatment. The investigations explore, the key aspects of nanogels, including their multifunctionality and stimuli-responsive properties, as well as associated toxicity concerns. The discussions presented herein aim to provide the readers a comprehensive understanding of the potential of nanogels as smart drug delivery systems in the context of cancer therapy.
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Affiliation(s)
- P V Ashwani
- Bio-organic Laboratory, Department of Chemistry, Sacred Heart College, Kochi, 682013, India
| | - G Gopika
- Bio-organic Laboratory, Department of Chemistry, Sacred Heart College, Kochi, 682013, India
| | - K V Arun Krishna
- Bio-organic Laboratory, Department of Chemistry, Sacred Heart College, Kochi, 682013, India
| | - Josena Jose
- Bio-organic Laboratory, Department of Chemistry, Sacred Heart College, Kochi, 682013, India
| | - Franklin John
- Bio-organic Laboratory, Department of Chemistry, Sacred Heart College, Kochi, 682013, India
| | - Jinu George
- Bio-organic Laboratory, Department of Chemistry, Sacred Heart College, Kochi, 682013, India
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Idumah CI. Recently emerging advancements in polymeric nanogel nanoarchitectures for drug delivery applications. INT J POLYM MATER PO 2022. [DOI: 10.1080/00914037.2022.2124256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Affiliation(s)
- Christopher Igwe Idumah
- Department of Polymer Engineering, Faculty of Engineering, Nnamdi Azikiwe University, Awka, Nigeria
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Idumah CI, Nwuzor IC, Odera SR, Timothy UJ, Ngenegbo U, Tanjung FA. Recent advances in polymeric hydrogel nanoarchitectures for drug delivery applications. INT J POLYM MATER PO 2022. [DOI: 10.1080/00914037.2022.2120875] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Affiliation(s)
- Christopher Igwe Idumah
- Department of Polymer Engineering, Faculty of Engineering, Nnamdi Azikiwe University, Awka, Nigeria
| | - I. C. Nwuzor
- Department of Polymer Engineering, Faculty of Engineering, Nnamdi Azikiwe University, Awka, Nigeria
| | - S. R. Odera
- Department of Polymer Engineering, Faculty of Engineering, Nnamdi Azikiwe University, Awka, Nigeria
| | - U. J. Timothy
- Department of Polymer Engineering, Faculty of Engineering, Nnamdi Azikiwe University, Awka, Nigeria
| | - U. Ngenegbo
- Department of Parasitology and Entomology, Faculty of Biosciences, Nnamdi Azikiwe University, Awka, Nigeria
| | - F. A. Tanjung
- Faculty of Science and Technology, Universitas Medan Area, Medan, Indonesia
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Da LC, Sun Y, Lin YH, Chen SZ, Chen GX, Zheng BH, Du SR. Emerging Bioactive Agent Delivery-Based Regenerative Therapies for Lower Genitourinary Tissues. Pharmaceutics 2022; 14:pharmaceutics14081718. [PMID: 36015344 PMCID: PMC9414065 DOI: 10.3390/pharmaceutics14081718] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Revised: 08/05/2022] [Accepted: 08/12/2022] [Indexed: 11/20/2022] Open
Abstract
Injury to lower genitourinary (GU) tissues, which may result in either infertility and/or organ dysfunctions, threatens the overall health of humans. Bioactive agent-based regenerative therapy is a promising therapeutic method. However, strategies for spatiotemporal delivery of bioactive agents with optimal stability, activity, and tunable delivery for effective sustained disease management are still in need and present challenges. In this review, we present the advancements of the pivotal components in delivery systems, including biomedical innovations, system fabrication methods, and loading strategies, which may improve the performance of delivery systems for better regenerative effects. We also review the most recent developments in the application of these technologies, and the potential for delivery-based regenerative therapies to treat lower GU injuries. Recent progress suggests that the use of advanced strategies have not only made it possible to develop better and more diverse functionalities, but also more precise, and smarter bioactive agent delivery systems for regenerative therapy. Their application in lower GU injury treatment has achieved certain effects in both patients with lower genitourinary injuries and/or in model animals. The continuous evolution of biomaterials and therapeutic agents, advances in three-dimensional printing, as well as emerging techniques all show a promising future for the treatment of lower GU-related disorders and dysfunctions.
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Affiliation(s)
- Lin-Cui Da
- Center of Reproductive Medicine, Fujian Maternity and Child Health Hospital College of Clinical Medicine for Obstetrics & Gynecology and Pediatrics, Fujian Medical University, Fuzhou 350001, China
| | - Yan Sun
- Center of Reproductive Medicine, Fujian Maternity and Child Health Hospital College of Clinical Medicine for Obstetrics & Gynecology and Pediatrics, Fujian Medical University, Fuzhou 350001, China
| | - Yun-Hong Lin
- Center of Reproductive Medicine, Fujian Maternity and Child Health Hospital College of Clinical Medicine for Obstetrics & Gynecology and Pediatrics, Fujian Medical University, Fuzhou 350001, China
| | - Su-Zhu Chen
- Center of Reproductive Medicine, Fujian Maternity and Child Health Hospital College of Clinical Medicine for Obstetrics & Gynecology and Pediatrics, Fujian Medical University, Fuzhou 350001, China
| | - Gang-Xin Chen
- Center of Reproductive Medicine, Fujian Maternity and Child Health Hospital College of Clinical Medicine for Obstetrics & Gynecology and Pediatrics, Fujian Medical University, Fuzhou 350001, China
| | - Bei-Hong Zheng
- Center of Reproductive Medicine, Fujian Maternity and Child Health Hospital College of Clinical Medicine for Obstetrics & Gynecology and Pediatrics, Fujian Medical University, Fuzhou 350001, China
- Correspondence: (B.-H.Z.); (S.-R.D.)
| | - Sheng-Rong Du
- Center of Reproductive Medicine, Fujian Maternity and Child Health Hospital College of Clinical Medicine for Obstetrics & Gynecology and Pediatrics, Fujian Medical University, Fuzhou 350001, China
- The Key Laboratory of Innate Immune Biology of Fujian Province, Biomedical Research Center of South China, College of Life Sciences, Fujian Normal University, Fuzhou 350117, China
- Correspondence: (B.-H.Z.); (S.-R.D.)
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