1
|
Micaletti F, Escoffre JM, Kerneis S, Bouakaz A, Galvin JJ, Boullaud L, Bakhos D. Microbubble-assisted ultrasound for inner ear drug delivery. Adv Drug Deliv Rev 2024; 204:115145. [PMID: 38042259 DOI: 10.1016/j.addr.2023.115145] [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: 09/21/2023] [Revised: 11/20/2023] [Accepted: 11/22/2023] [Indexed: 12/04/2023]
Abstract
Treating pathologies of the inner ear is a major challenge. To date, a wide range of procedures exists for administering therapeutic agents to the inner ear, with varying degrees of success. The key is to deliver therapeutics in a way that is minimally invasive, effective, long-lasting, and without adverse effects on vestibular and cochlear function. Microbubble-assisted ultrasound ("sonoporation") is a promising new modality that can be adapted to the inner ear. Combining ultrasound technology with microbubbles in the middle ear can increase the permeability of the round window, enabling therapeutic agents to be delivered safely and effectively to the inner ear in a targeted manner. As such, sonoporation is a promising new approach to treat hearing loss and vertigo. This review summarizes all studies on the delivery of therapeutic molecules to the inner ear using sonoporation.
Collapse
Affiliation(s)
- Fabrice Micaletti
- ENT and Cervico-Facial Surgery Department, University Hospital Center of Tours, 2 Boulevard Tonnellé, 37044 Tours, France.
| | | | - Sandrine Kerneis
- ENT and Cervico-Facial Surgery Department, University Hospital Center of Tours, 2 Boulevard Tonnellé, 37044 Tours, France
| | - Ayache Bouakaz
- UMR 1253, iBrain, Université de Tours, Inserm, Tours, France
| | - John J Galvin
- Faculty of medicine, Université de Tours, 10 boulevard Tonnellé, 37044 Tours, France; House Institute Foundation, 2100 W 3rd Street, Suite 111, Los Angeles, CA 90057, USA
| | - Luc Boullaud
- ENT and Cervico-Facial Surgery Department, University Hospital Center of Tours, 2 Boulevard Tonnellé, 37044 Tours, France
| | - David Bakhos
- ENT and Cervico-Facial Surgery Department, University Hospital Center of Tours, 2 Boulevard Tonnellé, 37044 Tours, France; UMR 1253, iBrain, Université de Tours, Inserm, Tours, France; Faculty of medicine, Université de Tours, 10 boulevard Tonnellé, 37044 Tours, France; House Institute Foundation, 2100 W 3rd Street, Suite 111, Los Angeles, CA 90057, USA
| |
Collapse
|
2
|
Uner B, Macit Celebi MS. Anti-obesity effects of chlorogenic acid and caffeine- lipid nanoparticles through PPAR-γ/C/EBP-ɑ pathways. Int J Obes (Lond) 2023; 47:1108-1119. [PMID: 37596386 DOI: 10.1038/s41366-023-01365-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 07/21/2023] [Accepted: 08/09/2023] [Indexed: 08/20/2023]
Abstract
Obesity is considered one of the most crucial health problems of the century. Therefore, reducing obesity is critically important. Caffeine (CF) and chlorogenic acid (CLA), which are substantial components in green bean coffee which maximize thermogenesis in brown adipose tissue. In our study, we have prepared CF, CLA, and CF + CLA loaded-solid lipid nanoparticles (SLN) since the SLNs are cost-effective, tissue-localized, and highly stable. The central composite design model was preferred to select the optimized formulation. UHPLC was used for quantification related to the CF and CLA amounts. The high-pressure homogenization (HPH) method was used while SLN formulations were prepared in the presence of poloxamer® 407 (surfactant) and Compritol® 888 ATO (solid lipid). The nanoparticles were characterized, followed by the utilization of 3T3-F442A cell lines for the evaluation of the adipogenesis activity of the formulations. Then, rt-PCR and ELISA studies of adipogenic markers were conducted. After optimal formulations were selected with an average of 110.2 ± 0.1 nm, CF (1 mM) + CLA (0.5 mM)-loaded SLN formulation has been proven significantly effective by using PPAR-γ/C/EBP-a pathways. In a nutshell, our study has shown that CF + CLA loaded-SLN has been affected 45.8% times more than regular extracted coffee (p < 0.05) on the adipocyte cells.
Collapse
Affiliation(s)
- Burcu Uner
- Department of Pharmaceutical and Administrative Sciences, University of Health Science and Pharmacy in St Louis, St. Louis, MO, USA.
| | | |
Collapse
|
3
|
Matadh AV, Echanur A, Suresh S, Chede L, Maibach H, Kulkarni V, Murthy SN, H N S. Can Continuous Manufacturing of Topical Semisolids by Hot Melt Extrusion Soon Be a Reality? Mol Pharm 2023; 20:3779-3790. [PMID: 37421361 DOI: 10.1021/acs.molpharmaceut.3c00201] [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: 07/10/2023]
Abstract
For more than five decades, pharmaceutical manufacturers have been relying heavily on batch manufacturing that is a sequential, multistep, laborious, and time-consuming process. However, late advances in manufacturing technologies have prompted manufacturers to consider continuous manufacturing (CM) is a feasible manufacturing process that encompasses fewer steps and is less tedious and quick. Global regulatory agencies are taking a proactive role to facilitate pharmaceutical industries to adopt CM that assures product quality by employing robust manufacturing technologies encountering fewer interruptions, thereby substantially reducing product failures and recalls. However, adopting innovative CM is known to pose technical and regulatory challenges. Hot melt extrusion (HME) is one such state-of-the-art enabling technology that facilitates CM of diverse pharmaceutical dosage forms, including topical semisolids. Efforts have been made to continuously manufacture semisolids by HME integrating the principles of Quality by Design (QbD) and Quality Risk Management (QRM) and deploying Process Analytical Technologies (PAT) tools. Attempts have been made to systematically elucidate the effect of critical material attributes (CMA) and critical process parameters (CPP) on product critical quality attributes (CQA) and Quality Target Product Profiles (QTPP) deploying PAT tools. The article critically reviews the feasibility of one of the enabling technologies such as HME in CM of topical semisolids. The review highlights the benefits of the CM process and challenges ahead to implement the technology to topical semisolids. Once the CM of semisolids adopting melt extrusion integrated with PAT tools becomes a reality, the process can be extended to manufacture sterile semisolids that usually involve more critical processing steps.
Collapse
Affiliation(s)
- Anusha V Matadh
- Institute for Drug Delivery and Biomedical Research, Mahalaxmipuram, Bengaluru 560086, Karnataka, India
| | - Anusha Echanur
- Institute for Drug Delivery and Biomedical Research, Mahalaxmipuram, Bengaluru 560086, Karnataka, India
| | - Sarasija Suresh
- Institute for Drug Delivery and Biomedical Research, Mahalaxmipuram, Bengaluru 560086, Karnataka, India
| | - Laxmishanthi Chede
- College of Pharmacy, The University of Iowa, Iowa City, Iowa 52242, United States
| | - Howard Maibach
- University of California, 2340 Sutter Street, San Francisco, California 94115, United States
| | - Vijay Kulkarni
- Steer Life Sciences, Fourth Phase, Peenya, Industrial Area, Bengaluru 560058, Karnataka, India
| | - S Narasimha Murthy
- Institute for Drug Delivery and Biomedical Research, Mahalaxmipuram, Bengaluru 560086, Karnataka, India
- Topical Products Testing, LLC, 9, Industrial Park Drive, Oxford, Mississippi 38655, United States
| | - Shivakumar H N
- Institute for Drug Delivery and Biomedical Research, Mahalaxmipuram, Bengaluru 560086, Karnataka, India
- KLE College of Pharmacy, Second Block, Rajajinagar, Bengaluru 560010, Karnataka, India
| |
Collapse
|
4
|
Lima AL, Gross IP, de Sá-Barreto LL, Gratieri T, Gelfuso GM, Cunha-Filho M. Extrusion-based systems for topical and transdermal drug delivery. Expert Opin Drug Deliv 2023; 20:979-992. [PMID: 37522812 DOI: 10.1080/17425247.2023.2241362] [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: 04/10/2023] [Accepted: 07/24/2023] [Indexed: 08/01/2023]
Abstract
INTRODUCTION Although the administration of drugs on the skin is a safe and noninvasive therapeutic alternative, producing formulations capable of disrupting the cutaneous barriers is still a challenge. In this scenario, extrusion-based techniques have emerged as disruptive technologies to ensure unique drug-excipient interactions that facilitate drug skin diffusion for systemic or local effect and even mean the key to obtain viable industrial products. AREAS COVERED This article presents a comprehensive overview of extrusion-based techniques in developing pharmaceutical dosage forms for topical or transdermal drug delivery. First, the theoretical basis of how extrusion-based techniques can optimize the permeation of drugs through the skin is examined. Then, the current state-of-the-art of drug products developed by extrusion-based techniques, specifically by hot-melt extrusion (HME) and fused deposition modeling (FDM) 3D printing, are discussed and contrasted with the current pharmaceutical processes. EXPERT OPINION A wide variety of pharmaceutical products can be obtained using HME and FDM 3D printing, including new dosage forms designed for a perfect anatomical fit. Despite the limitations of pharmaceutical products produced with HME and FDM 3D printing regarding thermal stability and available excipients, the advantages in industrial adaptability and improved bioavailability allied with patient-match devices certainly deserve full attention and investment.
Collapse
Affiliation(s)
- Ana Luiza Lima
- Laboratory of Food, Drugs, and Cosmetics (LTMAC), School of Health Sciences, University of Brasilia, Brasília, DF, Brazil
| | - Idejan P Gross
- Laboratory of Food, Drugs, and Cosmetics (LTMAC), School of Health Sciences, University of Brasilia, Brasília, DF, Brazil
| | - Lívia Lira de Sá-Barreto
- Laboratory of Food, Drugs, and Cosmetics (LTMAC), School of Health Sciences, University of Brasilia, Brasília, DF, Brazil
| | - Tais Gratieri
- Laboratory of Food, Drugs, and Cosmetics (LTMAC), School of Health Sciences, University of Brasilia, Brasília, DF, Brazil
| | - Guilherme Martins Gelfuso
- Laboratory of Food, Drugs, and Cosmetics (LTMAC), School of Health Sciences, University of Brasilia, Brasília, DF, Brazil
| | - Marcilio Cunha-Filho
- Laboratory of Food, Drugs, and Cosmetics (LTMAC), School of Health Sciences, University of Brasilia, Brasília, DF, Brazil
| |
Collapse
|
5
|
Tambe SM, Jain DD, Hasmukh Mehta C, Ashwini T, Yogendra Nayak U, Amin PD. Hot-melt extruded in situ gelling systems (MeltDrops Technology): Formulation development, in silico modelling and in vivo studies. Eur J Pharm Biopharm 2023:S0939-6411(23)00122-4. [PMID: 37182553 DOI: 10.1016/j.ejpb.2023.05.008] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Accepted: 05/08/2023] [Indexed: 05/16/2023]
Abstract
In situ gelling systems (ISGS) can prolong retention time and bioavailability of ophthalmic solutions. The complexity and cost of ISGS avert their industrial scale-up and clinical implementation. In this study, we demonstrate novel application of hot-melt extrusion (HME) technology for continuous manufacturing of ISGS (MeltDrops Technology). Timolol maleate (TIM) and dorzolamide hydrochloride (DRZ) loaded MeltDrops were successfully developed using HME for glaucoma management, thereby resolving issues with batch manufacturing of ISGS, prolonging retention time thus improving bioavailability. The MeltDrops technology involves one-step, i.e., passing all the ingredients through an extruder at a screw speed between 20-50 rpm and barrel temperature of 80 °C. The comparative evaluation of MeltDrops and batch-processed ISGS demonstrated that MeltDrops exhibited better physical and chemical content uniformity. The extrusion temperature and screw speed were critical factors influencing content uniformity and properties of the MeltDrops. MeltDrops showed sustained drug release for >12 hours in vitro (TIM= 83.07%; DRZ = 60.43%, 12hours) versus marketed eyedrops. The developed MeltDrops followed Peppas-Sahlin model, combining Fickian diffusion and swelling processes. The in vivo study in New Zealand rabbits revealed superior effectiveness and safety of the MeltDrops as compared to the marketed eyedrops. Herein we conclude, MeltDrops would serve as a cutting-edge platform technology that can be used to manufacture various ISGS with one-step processability, cost-effectiveness, and improved product quality, which are otherwise processed by batch manufacturing that involves numerous complex processing steps.
Collapse
Affiliation(s)
- Srushti M Tambe
- Institute of Chemical Technology, Department of Pharmaceutical Science and Technology, Mumbai 400019, India
| | - Divya D Jain
- Institute of Chemical Technology, Department of Pharmaceutical Science and Technology, Mumbai 400019, India
| | - Chetan Hasmukh Mehta
- Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India
| | - T Ashwini
- Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India
| | - Usha Yogendra Nayak
- Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India
| | - Purnima D Amin
- Institute of Chemical Technology, Department of Pharmaceutical Science and Technology, Mumbai 400019, India.
| |
Collapse
|
6
|
Kolimi P, Youssef AAA, Narala S, Nyavanandi D, Dudhipala N, Bandari S, Repka MA. Development and characterization of itraconazole non-aqueous creams for the treatment of topical fungal infections. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2022.103818] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
7
|
Alzahrani A, Nyavanandi D, Mandati P, Adel Ali Youssef A, Narala S, Bandari S, Repka M. A systematic and robust assessment of hot-melt extrusion-based amorphous solid dispersions: Theoretical prediction to practical implementation. Int J Pharm 2022; 624:121951. [PMID: 35753536 DOI: 10.1016/j.ijpharm.2022.121951] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Revised: 06/03/2022] [Accepted: 06/20/2022] [Indexed: 10/17/2022]
Abstract
Amorphous solid dispersions (ASDs) have gained attention as a formulation strategy in recent years, with the potential to improve the apparent solubility and, hence, the oral bioavailability of poorly soluble drugs. The process of formulating ASDs is commonly faced with challenges owing to the intrinsic physical and chemical instability of the initial amorphous form and the long-term physical stability of drug formulations. Numerous research publications on hot-melt extrusion (HME) technology have demonstrated that it is the most efficient approach for manufacturing reasonably stable ASDs. The HME technique has been established as a faster scale-up production strategy for formulation evaluation and has the potential to minimize the time to market. Thermodynamic evaluation and theoretical predictions of drug-polymer solubility and miscibility may assist to reduce the product development cost by HME. This review article highlights robust and established prediction theories and experimental approaches for the selection of polymeric carriers for the development of hot melt extrusion based stable amorphous solid dispersions (ASDs). In addition, this review makes a significant contribution to the literature as a pilot guide for ASD assessment, as well as to confirm the drug-polymer compatibility and physical stability of HME-based formulations.
Collapse
Affiliation(s)
- Abdullah Alzahrani
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS, 38677; Department of Pharmacy, East Jeddah Hospital, Ministry of Health, Jeddah 22253, Saudi Arabia
| | - Dinesh Nyavanandi
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS, 38677
| | - Preethi Mandati
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS, 38677
| | - Ahmed Adel Ali Youssef
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS, 38677; Department of Pharmaceutical Technology, Faculty of Pharmacy, Kafrelsheikh University, Kafrelsheikh 33516, Egypt
| | - Sagar Narala
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS, 38677
| | - Suresh Bandari
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS, 38677
| | - Michael Repka
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS, 38677; Pii Center for Pharmaceutical Technology, The University of Mississippi, University, MS 38677, USA.
| |
Collapse
|
8
|
Amorphization of Drugs for Transdermal Delivery-a Recent Update. Pharmaceutics 2022; 14:pharmaceutics14050983. [PMID: 35631568 PMCID: PMC9143970 DOI: 10.3390/pharmaceutics14050983] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Revised: 11/12/2021] [Accepted: 11/16/2021] [Indexed: 12/10/2022] Open
Abstract
Amorphous solid dispersion is a popular formulation approach for orally administered poorly water-soluble drugs, especially for BCS class II. But oral delivery could not be an automatic choice for some drugs with high first-pass metabolism susceptibility. In such cases, transdermal delivery is considered an alternative if the drug is potent and the dose is less than 10 mg. Amorphization of drugs causes supersaturation and enhances the thermodynamic activity of the drugs. Hence, drug transport through the skin could be improved. The stabilization of amorphous system is a persistent challenge that restricts its application. A polymeric system, where amorphous drug is dispersed in a polymeric carrier, helps its stability. However, high excipient load often becomes problematic for the polymeric amorphous system. Coamorphous formulation is another approach, where one drug is mixed with another drug or low molecular weight compound, which stabilizes each other, restricts crystallization, and maintains a single-phase homogenous amorphous system. Prevention of recrystallization along with enhanced skin permeation has been observed by the transdermal coamorphous system. But scalable manufacturing methods, extensive stability study and in-depth in vivo evaluation are lacking. This review has critically studied the mechanistic aspects of amorphization and transdermal permeation by analyzing recent researches in this field to propose a future direction.
Collapse
|
9
|
Gadziński P, Osmałek TZ, Froelich A, Wilmańska O, Nowak A, Tatarek A. Rheological and textural analysis as tools for investigation of drug-polymer and polymer-polymer interactions on the example of low-acyl gellan gum and mesalazine. J Biomater Appl 2022; 36:1400-1416. [PMID: 34994229 DOI: 10.1177/08853282211052755] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
PURPOSE In the performed study, the rheological and textural parameters of gellan-based hydrogels were investigated and their dependence on three factors was taken into consideration: (i) The presence of the model drug, (ii) The presence and type of the ionic crosslinking agent, and (iii) the composition of the polymer network. The objective was to compare two analytical methods, regarded as complementary, and define to what extent the obtained results correlate with each other. METHODS The hydrogels contained low-acyl gellan gum or its mixtures with hydroxyethyl cellulose or κ-carrageenan. CaCl2 and MgCl2 were used as gelling agents. Mesalazine was used as a model drug. The rheological analysis included oscillatory stress and frequency sweeping. The texture profile analysis was performed to calculate texture parameters. RESULTS Placebo gels without the addition of gelling agents had the weakest structure. The drug had the strongest ability to increase the stiffness of the polymer network. The weakest structure revealed the placebo samples without the addition of gelling agents. Texture analysis revealed no significant influence of the drug on the strength of the gels, while rheological measurements indicated clear differences. CONCLUSIONS It can be concluded that in the case of some parameters methods correlate, that is, the effect related to gelling ions. However, the rheological analysis seems to be more precise and sensitive to some changes in the mechanical properties of the gels.
Collapse
Affiliation(s)
- Piotr Gadziński
- Chair and Department of Pharmaceutical Technology, Poznan University of Medical Sciences, Poznań, Poland
| | - Tomasz Zbigniew Osmałek
- Chair and Department of Pharmaceutical Technology, Poznan University of Medical Sciences, Poznań, Poland
| | - Anna Froelich
- Chair and Department of Pharmaceutical Technology, Poznan University of Medical Sciences, Poznań, Poland
| | - Oliwia Wilmańska
- Student's Research Group of Pharmaceutical Technology, Chair and Department of Pharmaceutical Technology, Poznan University of Medical Sciences,Poznań, Poland
| | - Agata Nowak
- Student's Research Group of Pharmaceutical Technology, Chair and Department of Pharmaceutical Technology, Poznan University of Medical Sciences,Poznań, Poland
| | - Adam Tatarek
- Chair and Department of Pharmaceutical Technology, Poznan University of Medical Sciences, Poznań, Poland
| |
Collapse
|
10
|
Fan W, Zhang X, Zhu W, Zhang X, Di L. Preparation of Curcumin-Eudragit ® E PO Solid Dispersions with Gradient Temperature through Hot-Melt Extrusion. Molecules 2021; 26:4964. [PMID: 34443551 PMCID: PMC8400050 DOI: 10.3390/molecules26164964] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Revised: 08/06/2021] [Accepted: 08/08/2021] [Indexed: 01/02/2023] Open
Abstract
Hot-melt extrusion (HME) has great advantages for the preparation of solid dispersion (SD), for instance, it does not require any organic solvents. Nevertheless, its application to high-melting-point and thermosensitive drugs has been rarely reported. In this study, thermally unstable curcumin (Cur) was used as a drug model. The HME process was systematically studied by adjusting the gradient temperature mode and residence time, with the content, crystallinity and dissolution of Cur as the investigated factors. The effects of barrel temperature, screw speed and cooling rate on HME were also examined. Solubility parameters and the Flory-Huggins method were used to evaluate the miscibility between Cur and carriers. Differential scanning calorimetry, X-ray diffraction, Fourier transform infrared spectroscopy, equilibrium solubility and in vitro and in vivo experiments were used to characterize and evaluate the results. An amorphous Cur SD was successfully obtained, increasing the solubility and release of Cur. In the optimal process, the mass ratio of Cur to Eudragit® E PO (EPO) was 1:4 and the barrel temperature was set at a gradient heating mode (130 °C-135 °C-140 °C-145 °C-150 °C-155 °C-160 °C) at 100 rpm. Related pharmacokinetic test results also showed the improved bioavailability of the drug in rats. In a pharmacodynamic analysis of Sprague-Dawley rats, the Cmax and the bioavailability of the Cur-EPO SD were 2.6 and 1.5 times higher than those of Cur, respectively. The preparation of the amorphous SD not only provided more solubility but also improved the bioavailability of Cur, which provides an effective way to improve the bioavailability of BCS II drugs.
Collapse
Affiliation(s)
- Wenling Fan
- Laboratory of Pharmacy Engineering, College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China; (X.Z.); (W.Z.); (X.Z.)
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Xiaotong Zhang
- Laboratory of Pharmacy Engineering, College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China; (X.Z.); (W.Z.); (X.Z.)
| | - Wenjing Zhu
- Laboratory of Pharmacy Engineering, College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China; (X.Z.); (W.Z.); (X.Z.)
| | - Xinyi Zhang
- Laboratory of Pharmacy Engineering, College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China; (X.Z.); (W.Z.); (X.Z.)
| | - Liuqing Di
- Institute of Jiangsu Engineering Research Center for Efficient Delivery System of Traditional Chinese Medicine, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China;
| |
Collapse
|
11
|
Liao AH, Shih CP, Li MW, Lin YC, Chuang HC, Wang CH. Development of thermosensitive poloxamer 407-based microbubble gel with ultrasound mediation for inner ear drug delivery. Drug Deliv 2021; 28:1256-1271. [PMID: 34142922 PMCID: PMC8216251 DOI: 10.1080/10717544.2021.1938758] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
Abstract
ABSTRACTSOur previous study first investigated feasibility of applying ultrasound (US) and microbubbles (MBs) via external auditory canal to facilitate drug delivery into inner ear. However, most drugs are in aqueous formulae and eliminated via Eustachian tubes after drug application. In this study, feasibility of sustained release of thermosensitive poloxamer 407 (P407)-based MB gel for US mediation-enhanced inner ear drug (dexamethasone, DEX) delivery was investigated. The sol-to-gel transition temperature showed that mixture of DEX and only 10% and 12.5% P407 in MBs can be used for in vitro and in vivo drug delivery experiments. In in vitro Franz diffusion experiments, the release rates of 12.5% P407-MBs + US groups in the model using DEX as the delivered reagent at 3 h resulted in values 1.52 times greater than those of 12.5% P407-MBs groups. In guinea pigs, by filling tympanic bulla with DEX in 12.5% P407-MBs (DEX-P407-MBs), USMB applied at post-treatment days 1 and 7 induced 109.13% and 66.67% increases in DEX delivery efficiencies, respectively, compared to the group without US. On the 28th day after US-mediated P407-MB treatment, the safety assessment showed no significant changes in the hearing thresholds and no damage to the integrity of cochlea or middle ear. These are the first results to demonstrate feasibility of US-modified liquid form DEX-P407-MB cavitation for enhancing permeability of round window membrane. Then, a gel form of DEX-P407-MBs was generated and thus prolonged the release of DEX in middle ear to maintain the therapeutic DEX level in inner ear for at least 7 days.
Collapse
Affiliation(s)
- Ai-Ho Liao
- Graduate Institute of Biomedical Engineering, National Taiwan University of Science and Technology, Taipei, Taiwan.,Department of Biomedical Engineering, National Defense Medical Center, Taipei, Taiwan
| | - Cheng-Ping Shih
- Department of Otolaryngology-Head and Neck Surgery, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Ming-Wei Li
- Department of Mechanical Engineering, National Taipei University of Technology, Taipei, Taiwan
| | - Yi-Chun Lin
- Graduate Institute of Medical Sciences, National Defense Medical Center, Taipei, Taiwan
| | - Ho-Chiao Chuang
- Department of Mechanical Engineering, National Taipei University of Technology, Taipei, Taiwan
| | - Chih-Hung Wang
- Department of Otolaryngology-Head and Neck Surgery, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan.,Graduate Institute of Medical Sciences, National Defense Medical Center, Taipei, Taiwan.,Taichung Armed Forces General Hospital, Taichung, Taiwan
| |
Collapse
|
12
|
|
13
|
Zamram QAZM, Mohsin HF, Mohamad MM, Nor Hazalin NAM, Hamid KA. Physical characterisation and stability study of formulated Chromolaena odorata gel. Curr Drug Deliv 2021; 19:479-490. [PMID: 33874872 DOI: 10.2174/1567201818666210419114809] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2021] [Revised: 02/25/2021] [Accepted: 03/01/2021] [Indexed: 11/22/2022]
Abstract
AIM Formulating topical products for skin delivery has always been a challenge for pharmaceutical scientists to fulfil good formulation criteria. Despite the challenges, gel-based drug delivery offers some advantages such that it is non-invasive, painless, avoidance of the first-pass metabolism and has satisfactory patient compliance. OBJECTIVES In this study, Chromolaena odorata gel and quercetin gel (bioactive flavonoid compound) were successfully formulated and compared with placebo and conventional wound aid gel. The chromatographic profilling was conducted to screen the presence of phytoconstituents. Subsequently, all formulated gels were subjected to physical characteristic and stability study. METHODS Reverse Phase High-Performance Liquid Chromatography (RP-HPLC) of C.odorata methanolic leaves extract shows a distinct compound separation at retention time 8.4min to 34.8 min at 254nm. All gels were characterised by evaluating their rheological properties including storage modulus, loss modulus and plastic viscosity. Besides, texture analysis was performed to measure the gels' firmness, consistency, cohesiveness, and viscosity index. RESULTS From the observation, C. odorata gel demonstrated better spreadability as compared to the other gels, which acquired less work and favourable to be applied onto the skin. Moreover, C. odorata gel showed no changes in organoleptic properties and proven to be stable after 30 days of accelerated stability study at 40°C ± 2°C with relative humidity (RH) of 75%± 5%. CONCLUSION C. odorata gel has shown to be stable, reflecting the combination of materials used in the formulation, which did not degrade throughout the study. This work suggests the potential of this gel as a vehicle to deliver the active ingredients of C. odorata to the skin, which can be further explored as a topical application in antimicrobial wound management or other skin diseases study.
Collapse
Affiliation(s)
- Qurratul Ain Zakirah Mohd Zamram
- Department of Pharmaceutics, Faculty of Pharmacy, Universiti Teknologi MARA, Cawangan Selangor, 42300 Puncak Alam, Selangor. Malaysia
| | - Hannis Fadzillah Mohsin
- Department of Pharmacology and Chemistry, Faculty of Pharmacy, Universiti Teknologi MARA, Cawangan Selangor, 42300 Puncak Alam, Selangor. Malaysia
| | - Mashani Mohamad Mohamad
- Department of Pharmaceutical Life Sciences, Faculty of Pharmacy, Universiti Teknologi MARA, Cawangan Selangor, 42300 Puncak Alam, Selangor. Malaysia
| | - Nurul Aqmar Mohamad Nor Hazalin
- Department of Pharmaceutical Life Sciences, Faculty of Pharmacy, Universiti Teknologi MARA, Cawangan Selangor, 42300 Puncak Alam, Selangor. Malaysia
| | - Khuriah Abdul Hamid
- Department of Pharmaceutics, Faculty of Pharmacy, Universiti Teknologi MARA, Cawangan Selangor, 42300 Puncak Alam, Selangor. Malaysia
| |
Collapse
|
14
|
Preventive effect of nasal Timosaponin BII-loaded temperature-/ion-sensitive in situ hydrogels on Alzheimer’s disease. JOURNAL OF TRADITIONAL CHINESE MEDICAL SCIENCES 2021. [DOI: 10.1016/j.jtcms.2021.01.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
|
15
|
Nogami S, Uchiyama H, Kadota K, Tozuka Y. Design of a pH-responsive oral gel formulation based on the matrix systems of gelatin/hydroxypropyl methylcellulose phthalate for controlled drug release. Int J Pharm 2021; 592:120047. [DOI: 10.1016/j.ijpharm.2020.120047] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Revised: 10/07/2020] [Accepted: 11/01/2020] [Indexed: 01/24/2023]
|
16
|
Dhaval M, Sharma S, Dudhat K, Chavda J. Twin-Screw Extruder in Pharmaceutical Industry: History, Working Principle, Applications, and Marketed Products: an In-depth Review. J Pharm Innov 2020. [DOI: 10.1007/s12247-020-09520-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
17
|
Hot melt-extrusion improves the properties of cyclodextrin-based poly(pseudo)rotaxanes for transdermal formulation. Int J Pharm 2020; 586:119510. [DOI: 10.1016/j.ijpharm.2020.119510] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Revised: 06/02/2020] [Accepted: 06/03/2020] [Indexed: 01/24/2023]
|
18
|
Thakkar R, Ashour EA, Shukla A, Wang R, Chambliss WG, Bandari S, Murthy N, Repka MA. A Comparison Between Lab-Scale and Hot-Melt-Extruder-Based Anti-inflammatory Ointment Manufacturing. AAPS PharmSciTech 2020; 21:200. [PMID: 32676978 DOI: 10.1208/s12249-020-01738-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Accepted: 06/22/2020] [Indexed: 01/13/2023] Open
Abstract
Hot-melt extrusion (HME) has been extensively investigated for continuous manufacturing of amorphous solid dispersions, to improve the solubility of poorly water-soluble drug substances, impart abuse deterrence to controlled substances, taste masking for pediatric and geriatric formulations and development of cocrystal system. Much research has been conducted on the continuous manufacturing of solid dosage forms using HME, but its applicability in the manufacturing of semisolids remains an unexplored domain. This study aimed to explore the applicability of HME in the continuous manufacturing of topical semi-solid formulations with two active pharmaceutical ingredients (APIs). Ointments containing a combination of triamcinolone acetonide and lidocaine hydrochloride were screened based on a quality target product profile (QTPP) and established critical quality attributes (CQAs) using design of experiments (DoE). Three selected formulations, manufactured by a lab-scale fusion method and HME, were subjected to further characterization studies including work of adhesion, stiffness, apparent pH, content uniformity, differential scanning calorimetry, accelerated stability, and in vitro drug release testing. Selected formulations met design characteristics and demonstrated the applicability of HME in the continuous manufacturing of semi-solid formulations. Graphical abstract.
Collapse
|
19
|
Djekic L, Čalija B, Medarević Đ. Gelation behavior, drug solubilization capacity and release kinetics of poloxamer 407 aqueous solutions: The combined effect of copolymer, cosolvent and hydrophobic drug. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.112639] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
|
20
|
Systematic screening of pharmaceutical polymers for hot melt extrusion processing: a comprehensive review. Int J Pharm 2020; 576:118989. [DOI: 10.1016/j.ijpharm.2019.118989] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2019] [Revised: 12/20/2019] [Accepted: 12/21/2019] [Indexed: 01/10/2023]
|
21
|
Mendonsa N, Almutairy B, Kallakunta VR, Sarabu S, Thipsay P, Bandari S, Repka MA. Manufacturing strategies to develop amorphous solid dispersions: An overview. J Drug Deliv Sci Technol 2019; 55. [PMID: 32863891 DOI: 10.1016/j.jddst.2019.101459] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Since the past several decades, poor water solubility of existing and new drugs in the pipeline have remained a challenging issue for the pharmaceutical industry. Literature describes several approaches to improve the overall solubility, dissolution rate, and bioavailability of drugs with poor water solubility. Moreover, the development of amorphous solid dispersion (SD) using suitable polymers and methods have gained considerable importance in the recent past. In the present review, we attempt to discuss the important and industrially scalable thermal strategies for the development of amorphous SD. These include both solvent (spray drying and fluid bed processing) and fusion (hot melt extrusion and KinetiSol®) based techniques. The current review also provides insights into the thermodynamic properties of drugs, their polymer miscibility and solubility, and their molecular dynamics to develop stable and more efficient amorphous SD.
Collapse
Affiliation(s)
- Nicole Mendonsa
- Department of Pharmaceutics and Drug Delivery, The University of Mississippi, Oxford, MS, 38677, United States
| | - Bjad Almutairy
- Department of Pharmaceutics and Drug Delivery, The University of Mississippi, Oxford, MS, 38677, United States
| | - Venkata Raman Kallakunta
- Department of Pharmaceutics and Drug Delivery, The University of Mississippi, Oxford, MS, 38677, United States
| | - Sandeep Sarabu
- Department of Pharmaceutics and Drug Delivery, The University of Mississippi, Oxford, MS, 38677, United States
| | - Priyanka Thipsay
- Department of Pharmaceutics and Drug Delivery, The University of Mississippi, Oxford, MS, 38677, United States
| | - Suresh Bandari
- Department of Pharmaceutics and Drug Delivery, The University of Mississippi, Oxford, MS, 38677, United States
| | - Michael A Repka
- Department of Pharmaceutics and Drug Delivery, The University of Mississippi, Oxford, MS, 38677, United States.,Pii Center for Pharmaceutical Innovation & Instruction, The University of Mississippi, Oxford, MS, 38677, United States
| |
Collapse
|
22
|
Escalona-Rayo CF, Serrano-Castañeda P, López-Cervantes M, Escobar-Chávez JJ. Optimization of Unidirectional Mucoadhesive Buccal Patches Based on Chitosan and Pluronic® F-127 for Metoprolol Controlled Release: In Vitro and Ex Vivo Evaluations. J Pharm Innov 2019. [DOI: 10.1007/s12247-019-09401-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
23
|
Mendonsa NS, Pradhan A, Sharma P, Prado RMB, Murthy SN, Kundu S, Repka MA. A quality by design approach to develop topical creams via hot-melt extrusion technology. Eur J Pharm Sci 2019; 136:104948. [PMID: 31173868 DOI: 10.1016/j.ejps.2019.06.002] [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: 11/27/2018] [Revised: 04/11/2019] [Accepted: 06/02/2019] [Indexed: 10/26/2022]
Abstract
The advantages of hot-melt extrusion technology (HME) over conventional techniques to develop topical semisolids have been established. However, this technique is not widely used for semisolid production. Therefore, the aim of this novel work was to develop creams using the melt extrusion technology while applying Quality by Design (QbD) principles to study the effects of the extrusion process parameters on the product characteristics. The model drug selected was hydrocortisone acetate. A 23 factorial design was considered for the factor influence study, which resulted in eight formulations to be extruded. Of the process parameters considered, the temperature of zone 2 had a significant influence on the work of adhesion of the creams. A similar permeation profile was obtained for all the formulations with the formulations following a diffusion based drug release mechanism. The results from the size distribution graph indicated stable cream formulations. In conclusion, this technology coupled with a design of experiments approach could be utilized to study how the extrusion process parameters could be modified to develop consistent topical creams with ideal product characteristics.
Collapse
Affiliation(s)
- Nicole S Mendonsa
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, MS 38677, USA
| | - Adwait Pradhan
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, MS 38677, USA
| | - Purnendu Sharma
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, MS 38677, USA
| | - Rosa M B Prado
- Dave C. Swalm School of Chemical Engineering, Mississippi State University, Oktibbeha County, MS 39762, USA
| | - S Narasimha Murthy
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, MS 38677, USA
| | - Santanu Kundu
- Dave C. Swalm School of Chemical Engineering, Mississippi State University, Oktibbeha County, MS 39762, USA
| | - Michael A Repka
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, MS 38677, USA; Pii Center for Pharmaceutical Technology, School of Pharmacy, The University of Mississippi, Oxford, MS 38677, USA.
| |
Collapse
|
24
|
Sarabu S, Bandari S, Kallakunta VR, Tiwari R, Patil H, Repka MA. An update on the contribution of hot-melt extrusion technology to novel drug delivery in the twenty-first century: part II. Expert Opin Drug Deliv 2019; 16:567-582. [PMID: 31046479 DOI: 10.1080/17425247.2019.1614912] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
INTRODUCTION Interest in hot-melt extrusion (HME) technology for novel applications is growing day by day, which is evident from several hundred publications within the last 5 years. HME is a cost-effective, solvent free, 'green' technology utilized for various formulations with low investment costs compared to conventional technologies. HME has also earned the attention of the pharmaceutical industry by the transformation of this technology for application in continuous manufacturing. AREAS COVERED Part II of the review focuses on various novel opportunities or innovations of HME such as multiple component systems (co-crystals, co-amorphous systems and salts), twin-screw granulation, semi-solids, co-extrusion, abuse deterrent formulations, solid self-emulsifying drug delivery systems, chronotherapeutic drug delivery systems, and miscellaneous applications. EXPERT OPINION HME is being investigated as an alternative technology for preparation of multicomponent systems such as co-crystals and co-amorphous techniques. Twin-screw granulation has gained increased interest in preparation of granules via twin-screw melt granulation or twin-screw dry granulation. This novel application of the HME process provides a promising alternate approach in the formulation of granules and solid dosage forms. However, this technology may need to be further investigated for scalability aspects of these novel applications for industrial production.
Collapse
Affiliation(s)
- Sandeep Sarabu
- a Department of Pharmaceutics and Drug Delivery , The University of Mississippi, University , MS , USA
| | - Suresh Bandari
- a Department of Pharmaceutics and Drug Delivery , The University of Mississippi, University , MS , USA
| | - Venkata Raman Kallakunta
- a Department of Pharmaceutics and Drug Delivery , The University of Mississippi, University , MS , USA
| | - Roshan Tiwari
- a Department of Pharmaceutics and Drug Delivery , The University of Mississippi, University , MS , USA
| | - Hemlata Patil
- a Department of Pharmaceutics and Drug Delivery , The University of Mississippi, University , MS , USA
| | - Michael A Repka
- a Department of Pharmaceutics and Drug Delivery , The University of Mississippi, University , MS , USA.,b Pii Center for Pharmaceutical Technology , The University of Mississippi, University , MS , USA
| |
Collapse
|
25
|
Bhagurkar AM, Darji M, Lakhani P, Thipsay P, Bandari S, Repka MA. Effects of formulation composition on the characteristics of mucoadhesive films prepared by hot-melt extrusion technology. J Pharm Pharmacol 2018; 71:293-305. [PMID: 30485903 DOI: 10.1111/jphp.13046] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2018] [Accepted: 10/30/2018] [Indexed: 01/21/2023]
Abstract
OBJECTIVES To investigate the effects of formulation composition on the physico-chemical and drug release properties of mucoadhesive buccal films prepared by melt extrusion technology, using a response surface methodology. METHODS Salbutamol sulphate, an antiasthmatic drug was used for this study. Klucel hydroxypropylcellulose (HPC) EF (film-forming polymer), Benecel hydroxypropylmethylcellulose (HPMC) K-15M (drug release retardant) and polyethylene glycol (PEG) 4500 (plasticiser) were the three independent factors utilised for the study. The responses were fitted to a full quadratic model and P-values for each of the factors were used to determine their significance on the film characteristics. KEY FINDINGS Films were successfully extruded using the corotating twin-screw extruder. The torque during extrusion was found to be significantly affected by all the three factors and no interaction between factors was observed. A significant interaction was observed between HPC and PEG 4500 for stiffness of films. For disintegration time and swelling index, a significant interaction was found between HPC and HPMC. The in vitro % drug release was directly correlated with HPMC content and not with other factors and varied from 69-89% at 4 h. CONCLUSIONS The influence of extrusion process and formulation parameters on salbutamol sulphate films was elucidated, indicating the use of melt extrusion as a feasible method for film preparation.
Collapse
Affiliation(s)
- Ajinkya M Bhagurkar
- Department of Pharmaceutics and Drug Delivery, The University of Mississippi School of Pharmacy, University, MS, USA
| | - Mittal Darji
- Department of Pharmaceutics and Drug Delivery, The University of Mississippi School of Pharmacy, University, MS, USA
| | - Prit Lakhani
- Department of Pharmaceutics and Drug Delivery, The University of Mississippi School of Pharmacy, University, MS, USA
| | - Priyanka Thipsay
- Department of Pharmaceutics and Drug Delivery, The University of Mississippi School of Pharmacy, University, MS, USA
| | - Suresh Bandari
- Department of Pharmaceutics and Drug Delivery, The University of Mississippi School of Pharmacy, University, MS, USA
| | - Michael A Repka
- Department of Pharmaceutics and Drug Delivery, The University of Mississippi School of Pharmacy, University, MS, USA
| |
Collapse
|
26
|
Liu Y, Yu F, Zhang B, Zhou M, Bei Y, Zhang Y, Tang J, Yang Y, Huang Y, Xiang Q, Zhao Y, Liang Q, Liu Y. Improving the protective effects of aFGF for peripheral nerve injury repair using sulfated chitooligosaccharides. Asian J Pharm Sci 2018; 14:511-520. [PMID: 32104478 PMCID: PMC7032102 DOI: 10.1016/j.ajps.2018.09.007] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2018] [Revised: 08/17/2018] [Accepted: 09/27/2018] [Indexed: 01/07/2023] Open
Abstract
Injury to the peripheral nerves can result in temporary or life-long neuronal dysfunction and subsequent economic or social disability. Acidic fibroblast growth factor (aFGF) promotes the growth and survival of neurons and is a possible treatment for peripheral nerve injury. Yet, the actual therapeutic utility of aFGF is limited by its short half-life and instability in vivo. In the present study, we prepared sulfated chitooligosaccharides (SCOS), which have heparin-like properties, to improve the bioactivity of aFGF. We investigated the protective effects of SCOS with or without aFGF on RSC96 cells exposed to Na2S2O4 hypoxia/reoxygenation injury. Cell viability was measured by MTT assay and cytotoxicity induced by Na2S2O4 was assessed by lactate dehydrogenase (LDH) release into the culture medium. Pretreatment with aFGF and SCOS dramatically decreased LDH release after injury compared to pretreatment with aFGF or SCOS alone. We subsequently prepared an aFGF/SCOS thermo-sensitive hydrogel with poloxamer and examined its effects in vivo. Paw withdrawal thresholds and thermal withdrawal latencies were measured in rats with sciatic nerve injury. Local injection of the aFGF/SCOS hydrogels (aFGF: 40, 80 µg/kg) increased the efficiency of sciatic nerve repair compared to aFGF (80 µg/kg) hydrogel alone. Especially aFGF/SCOS thermo-sensitive hydrogel decreased paw withdrawal thresholds from 117.75 ± 8.38 (g, 4 d) to 65.74 ± 3.39 (g, 10 d), but aFGF alone group were 140.58 ± 27.54 (g, 4 d) to 89.12 ± 5.60 (g, 10 d) (aFGF dose was 80 µg/kg, P < 0.05, n = 8). The thermal withdrawal latencies decreased from 11.61 ± 2.26 (s, 4 d) to 2.37 ±0.67 (s, 10 d). However, aFGF alone group were from 17.69 ± 1.47 (s, 4 d) to 4.65 ± 1.73 (s, 10 d) (P < 0.05, n = 8). Furthermore, the aFGF/SCOS hydrogels also exhibited good biocompatibility in mice. In summary, SCOS improved the protective effects of aFGF in RSC96 cells injured with Na2S2O4 and increased the efficiency of nerve repair and recovery of function in rats with sciatic nerve injury. These findings pave an avenue for the development of novel prophylactic and therapeutic strategies for peripheral nerve injury.
Collapse
Affiliation(s)
- Yanmei Liu
- Institute of Biomedicine and Guangdong Provincial Key Laboratory of Bioengineering Medicine, Jinan University, Guangzhou 510632, China
| | - Fenglin Yu
- Institute of Biomedicine and Guangdong Provincial Key Laboratory of Bioengineering Medicine, Jinan University, Guangzhou 510632, China
| | - Beibei Zhang
- Department of Pharmacy, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Meng Zhou
- College of Pharmacy, Jinan University, Guangzhou 510632, China
| | - Yu Bei
- College of Pharmacy, Jinan University, Guangzhou 510632, China
| | - Yifan Zhang
- Institute of Biomedicine and Guangdong Provincial Key Laboratory of Bioengineering Medicine, Jinan University, Guangzhou 510632, China
| | - Jianzhong Tang
- Institute of Biomedicine and Guangdong Provincial Key Laboratory of Bioengineering Medicine, Jinan University, Guangzhou 510632, China
| | - Yan Yang
- Institute of Biomedicine and Guangdong Provincial Key Laboratory of Bioengineering Medicine, Jinan University, Guangzhou 510632, China
| | - Yadong Huang
- Institute of Biomedicine and Guangdong Provincial Key Laboratory of Bioengineering Medicine, Jinan University, Guangzhou 510632, China.,College of Pharmacy, Jinan University, Guangzhou 510632, China
| | - Qi Xiang
- Institute of Biomedicine and Guangdong Provincial Key Laboratory of Bioengineering Medicine, Jinan University, Guangzhou 510632, China.,College of Pharmacy, Jinan University, Guangzhou 510632, China
| | - Yueping Zhao
- Department of Stomatology, Jinan University Medical College, Guangzhou 510632, China
| | - Qian Liang
- Department of Stomatology, Jinan University Medical College, Guangzhou 510632, China
| | - Yang Liu
- Department of Stomatology, Jinan University Medical College, Guangzhou 510632, China
| |
Collapse
|