1
|
Sangkaew W, Sianglum W, Wunnoo S, Voravuthikunchai SP, Joycharat N. Bioactive substance contents and therapeutic potential for skin inflammation of an herbal gel containing Derris reticulata and Glycyrrhiza glabra. PHARMACEUTICAL BIOLOGY 2024; 62:648-658. [PMID: 39150231 PMCID: PMC11332287 DOI: 10.1080/13880209.2024.2385456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2024] [Revised: 07/09/2024] [Accepted: 07/22/2024] [Indexed: 08/17/2024]
Abstract
CONTEXT Derris reticulata Craib. and Glycyrrhiza glabra L., of the Fabaceae, have been used as active components in Thai herbal formulas for the treatment of fever and skin diseases. OBJECTIVE To evaluate the physicochemical and pharmacological properties of the developed herbal gel formulation containing the combined extract from D. reticulata stem wood and G. glabra root (RGF). MATERIALS AND METHODS The potential of the herbal gel formulation containing RGF (8% w/w) as the active ingredient was studied by evaluating the anti-inflammatory, antioxidant, and anti-Staphylococcus aureus activities using quantitative reverse transcription-polymerase chain reaction assay, spectrophotometric method, and broth microdilution technique, respectively. The reference standards for the biological testing included Nω-nitro-L-arginine (L-NA), ascorbic acid, catechin, and penicillin G. The stability study of the RGF herbal gel was performed by a heating-cooling test (at 45 °C for 24 h and at 4 °C for 24 h/1 cycle; for 6 cycles), and the bioactive marker compounds in the herbal gel were investigated by the HPLC technique. RESULTS RGF showed promising pharmacological effects, particularly on its anti-inflammatory property (IC50 73.86 µg/mL), compared to L-NA (IC50 47.10 µg/mL). The RGF-containing gel demonstrated anti-inflammatory (IC50 3.59 mg/mL) and free radical scavenging effects (IC50 0.05-4.39 mg/mL), whereas it had no anti-S. aureus activity (MIC > 10 mg/mL). The active ingredient in the developed herbal gel significantly inhibited lipopolysaccharide-induced nitric oxide production by downregulating iNOS mRNA levels. The contents of the bioactive markers in the RGF gel (lupinifolin and glabridin) did not change significantly after stability testing. DISCUSSION AND CONCLUSIONS The RGF-containing gel has potential to be further developed as an herbal product for the treatment of skin inflammation.
Collapse
Affiliation(s)
- Warissara Sangkaew
- Traditional Thai Medical Research and Innovation Center, Faculty of Traditional Thai Medicine, Prince of Songkla University, Songkhla, Thailand
| | - Wipawadee Sianglum
- Division of Biological Science, Faculty of Science, Prince of Songkla University, Songkhla, Thailand
| | - Suttiwan Wunnoo
- Center of Antimicrobial Biomaterial Innovation-Southeast Asia, Faculty of Science, Prince of Songkla University, Songkhla, Thailand
| | | | - Nantiya Joycharat
- Traditional Thai Medical Research and Innovation Center, Faculty of Traditional Thai Medicine, Prince of Songkla University, Songkhla, Thailand
| |
Collapse
|
2
|
Wang Z, Zhai B, Sun J, Zhang X, Zou J, Shi Y, Guo D. Recent advances of injectable in situ-forming hydrogels for preventing postoperative tumor recurrence. Drug Deliv 2024; 31:2400476. [PMID: 39252545 PMCID: PMC11389645 DOI: 10.1080/10717544.2024.2400476] [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: 04/12/2024] [Revised: 07/17/2024] [Accepted: 08/30/2024] [Indexed: 09/11/2024] Open
Abstract
The unavoidable residual tumor tissue from surgery and the strong aggressiveness of tumor cells pose challenges to the postoperative treatment of tumor patients, accompanied by in situ tumor recurrence and decreased quality of life. Therefore, there is an urgent need to explore appropriate postoperative therapeutic strategies to remove residual tumor cells after surgery to inhibit tumor recurrence and metastasis after surgery. In recent years, with the rapid development of biomedical materials, the study of local delivery systems as postoperative delivery of therapeutic agents has gradually attracted the attention of researchers. Injectable in situ-forming hydrogel is a locally administered agent injected in situ as a solution that can be loaded with various therapeutic agents and rapidly gels to form a semi-solid gel at the treatment site. This type of hydrogel tightly fills the surgical site and covers irregular excision surfaces. In this paper, we review the recent advances in the application of injectable in situ-forming hydrogels in postoperative therapy, focusing on the matrix materials of this type of hydrogel and its application in the postoperative treatment of different types of tumors, as well as discussing the challenges and prospects of its clinical application.
Collapse
Affiliation(s)
- Zhanpeng Wang
- School of Pharmacy, Shaanxi University of Chinese Medicine, Xi'an, People's Republic of China
| | - Bingtao Zhai
- School of Pharmacy, Shaanxi University of Chinese Medicine, Xi'an, People's Republic of China
- State Key Laboratory of Research & Development of Characteristic Qin Medicine Resources (Cultivation), Shaanxi University of Chinese Medicine, Xi'an, People's Republic of China
| | - Jing Sun
- School of Pharmacy, Shaanxi University of Chinese Medicine, Xi'an, People's Republic of China
| | - Xiaofei Zhang
- School of Pharmacy, Shaanxi University of Chinese Medicine, Xi'an, People's Republic of China
| | - Junbo Zou
- School of Pharmacy, Shaanxi University of Chinese Medicine, Xi'an, People's Republic of China
| | - Yajun Shi
- School of Pharmacy, Shaanxi University of Chinese Medicine, Xi'an, People's Republic of China
| | - Dongyan Guo
- School of Pharmacy, Shaanxi University of Chinese Medicine, Xi'an, People's Republic of China
- Shaanxi Key Laboratory of Chinese Medicine Fundamentals and New Drugs Research, Shaanxi University of Chinese Medicine, Xi'an, People's Republic of China
| |
Collapse
|
3
|
Naik K, du Toit LC, Ally N, Choonara YE. In vivo evaluation of a Nano-enabled therapeutic vitreous substitute for the precise delivery of triamcinolone to the posterior segment of the eye. Drug Deliv Transl Res 2024; 14:2668-2694. [PMID: 38519828 PMCID: PMC11384602 DOI: 10.1007/s13346-024-01566-1] [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] [Accepted: 02/26/2024] [Indexed: 03/25/2024]
Abstract
This study focused on the design of a thermoresponsive, nano-enabled vitreous substitute for the treatment of retinal diseases. Synthesis of a hydrogel composed of hyaluronic acid and a poloxamer blend was undertaken. Poly(D,L-lactide-co-glycolide) acid nanoparticles encapsulating triamcinolone acetonide (TA) were synthesised with a spherical morphology and mean diameter of ~ 153 nm. Hydrogel fabrication and nanoparticle loading within the hydrogel was confirmed via physicochemical analysis. Gelation studies indicated that hydrogels formed in nine minutes and 10 min for the unloaded and nanoparticle-loaded hydrogels, respectively. The hydrogels displayed in situ gel formation properties, and rheometric viscoelastic studies indicated the unloaded and loaded hydrogels to have modulus values similar to those of the natural vitreous at 37 °C. Administration of the hydrogels was possible via 26G needles allowing for clinical application and drug release of triamcinolone acetonide from the nanoparticle-loaded hydrogel, which provided sustained in vitro drug release over nine weeks. The hydrogels displayed minimal swelling, reaching equilibrium swelling within 12 h for the unloaded hydrogel, and eight hours for the nanoparticle-loaded hydrogel. Biodegradation in simulated vitreous humour with lysozyme showed < 20% degradation within nine weeks. Biocompatibility of both unloaded and loaded hydrogels was shown with mouse fibroblast and human retinal pigment epithelium cell lines. Lastly, a pilot in vivo study in a New Zealand White rabbit model displayed minimal toxicity with precise, localised drug release behaviour, and ocular TA levels maintained within the therapeutic window for the 28-day investigation period, which supports the potential applicability of the unloaded and nanoparticle-loaded hydrogels as vitreous substitutes that function as drug delivery systems following vitrectomy surgery.
Collapse
Affiliation(s)
- Kruti Naik
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, School of Therapeutic Sciences, Faculty of Health Sciences, University of the Witwatersrand, 7 York Road, Johannesburg, Parktown, 2193, South Africa
| | - Lisa Claire du Toit
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, School of Therapeutic Sciences, Faculty of Health Sciences, University of the Witwatersrand, 7 York Road, Johannesburg, Parktown, 2193, South Africa
| | - Naseer Ally
- Division of Ophthalmology, Department of Neurosciences, School of Clinical Medicine, Faculty of Health Sciences, University of the Witwatersrand, 7 York Road, Johannesburg, Parktown, 2193, South Africa
| | - Yahya Essop Choonara
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, School of Therapeutic Sciences, Faculty of Health Sciences, University of the Witwatersrand, 7 York Road, Johannesburg, Parktown, 2193, South Africa.
| |
Collapse
|
4
|
Park J, Hassan MA, Nabawy A, Li CH, Jiang M, Parmar K, Reddivari A, Goswami R, Jeon T, Patel R, Rotello VM. Engineered Bacteriophage-Polymer Nanoassemblies for Treatment of Wound Biofilm Infections. ACS NANO 2024; 18:26928-26936. [PMID: 39287559 DOI: 10.1021/acsnano.4c08671] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/19/2024]
Abstract
The antibacterial efficacy and specificity of lytic bacteriophages (phages) make them promising therapeutics for treatment of multidrug-resistant bacterial infections. Restricted penetration of phages through the protective matrix of biofilms, however, may limit their efficacy against biofilm infections. Here, engineered polymers were used to generate noncovalent phage-polymer nanoassemblies (PPNs) that penetrate bacterial biofilms and kill resident bacteria. Phage K, active against multiple strains of Staphylococcus aureus, including methicillin-resistant S. aureus (MRSA), was assembled with cationic poly(oxanorbornene) polymers into PPNs. The PPNs retained phage infectivity, while demonstrating enhanced biofilm penetration and killing relative to free phages. PPNs achieved 3-log10 bacterial reduction (∼99.9%) against MRSA biofilms in vitro. PPNs were then incorporated into Poloxamer 407 (P407) hydrogels and applied onto in vivo wound biofilms, demonstrating controlled and sustained release. Hydrogel-incorporated PPNs were effective in a murine MRSA wound biofilm model, showing a 1.5-log10 reduction in bacterial load compared to a 0.5 log reduction with phage K in P407 hydrogel. Overall, this work showcases the therapeutic potential of phage K engineered with cationic polymers for treating wound biofilm infections.
Collapse
Affiliation(s)
- Jungmi Park
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant Street, Amherst, Massachusetts 01003, United States
| | - Muhammad Aamir Hassan
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant Street, Amherst, Massachusetts 01003, United States
| | - Ahmed Nabawy
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant Street, Amherst, Massachusetts 01003, United States
| | - Cheng Hsuan Li
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant Street, Amherst, Massachusetts 01003, United States
| | - Mingdi Jiang
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant Street, Amherst, Massachusetts 01003, United States
| | - Krupa Parmar
- Division of Clinical Microbiology, Department of Laboratory Medicine and Pathology, Mayo Clinic, 200 First Street SW, Rochester, Minnesota 55905, United States
| | - Annika Reddivari
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant Street, Amherst, Massachusetts 01003, United States
| | - Ritabrita Goswami
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant Street, Amherst, Massachusetts 01003, United States
| | - Taewon Jeon
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant Street, Amherst, Massachusetts 01003, United States
| | - Robin Patel
- Division of Clinical Microbiology, Department of Laboratory Medicine and Pathology, Mayo Clinic, 200 First Street SW, Rochester, Minnesota 55905, United States
- Division of Public Health, Infectious Diseases and Occupational Medicine, Mayo Clinic, 200 First Street SW, Rochester, Minnesota 55905, United States
| | - Vincent M Rotello
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant Street, Amherst, Massachusetts 01003, United States
| |
Collapse
|
5
|
Ferreira JGDJ, Flores VG, Marco MR, Fraga BB, Zorzo RR, de Morais PDF, Morisso FDP, Fleck JD, Charão MF, de Mattos CB, Betti AH. Diazepam nanocapsules as an alternative for sleep induction: Development study and toxicity assessment. Food Chem Toxicol 2024; 192:114962. [PMID: 39197520 DOI: 10.1016/j.fct.2024.114962] [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: 04/26/2024] [Revised: 07/29/2024] [Accepted: 08/23/2024] [Indexed: 09/01/2024]
Abstract
Diazepam (DZP) is a sedative medication prescribed to treat anxiety and as a sleep inducer, although its residual effects are unfavorable to patients. Nanotechnology represents a tool to improve the pharmacological characteristics of drugs, reducing their side effects. This study aimed to develop and characterize DZP nanocapsules and to evaluate their toxicity in alternative models and the hypnotic-sedative effect in mice. Nanocapsules were prepared by the nanoprecipitation method and properly characterized. Long-term and accelerated stability studies were performed. The in vitro release profile was determined by diffusion in Franz cells. The safety of the formulation was evaluated in the Caenorhabditis elegans (C. elegans) and the oral acute toxicity in mice. Pharmacological evaluation was performed using thiopental-induced sleeping time. DZP was successfully incorporated into Poly-(ɛ-caprolactone) (PCL) nanocapsules, with high entrapment efficiency. The nanocapsule did not affect the development or survival of C. elegans, different from the free drug, which affected the nematode development at the higher tested dose. No signs of toxicity, nor body mass or feed consumption changes were observed during the 14 days evaluated. Finally, this innovative formulation carrying DZP can produce a hypnotic-effect at a reduced dose compared to the free drug, with no toxicity in alternative models.
Collapse
Affiliation(s)
- Julia Gabriele de Jesus Ferreira
- Bioanalysis Laboratory, Health Sciences Institute, Universidade FEEVALE, Novo Hamburgo, RS, Brazil; Postgraduate Program on Toxicology and Analytical Toxicology, Universidade FEEVALE, Novo Hamburgo, Brazil
| | | | - Mariana Roza Marco
- Bioanalysis Laboratory, Health Sciences Institute, Universidade FEEVALE, Novo Hamburgo, RS, Brazil
| | - Bianca Bordignon Fraga
- Bioanalysis Laboratory, Health Sciences Institute, Universidade FEEVALE, Novo Hamburgo, RS, Brazil
| | - Roberta Rodrigues Zorzo
- Bioanalysis Laboratory, Health Sciences Institute, Universidade FEEVALE, Novo Hamburgo, RS, Brazil
| | | | - Fernando Dal Pont Morisso
- Advanced Materials Studies Laboratory, Health Sciences Institute, Universidade FEEVALE, Novo Hamburgo, RS, Brazil
| | - Juliane Deise Fleck
- Molecular Microbiology Laboratory, Health Sciences Institute, Universidade FEEVALE, Novo Hamburgo, RS, Brazil; Postgraduate Program on Toxicology and Analytical Toxicology, Universidade FEEVALE, Novo Hamburgo, Brazil
| | - Mariele Feiffer Charão
- Bioanalysis Laboratory, Health Sciences Institute, Universidade FEEVALE, Novo Hamburgo, RS, Brazil; Postgraduate Program on Toxicology and Analytical Toxicology, Universidade FEEVALE, Novo Hamburgo, Brazil
| | - Cristiane Bastos de Mattos
- Bioanalysis Laboratory, Health Sciences Institute, Universidade FEEVALE, Novo Hamburgo, RS, Brazil; Postgraduate Program on Toxicology and Analytical Toxicology, Universidade FEEVALE, Novo Hamburgo, Brazil
| | - Andresa Heemann Betti
- Bioanalysis Laboratory, Health Sciences Institute, Universidade FEEVALE, Novo Hamburgo, RS, Brazil; Postgraduate Program on Toxicology and Analytical Toxicology, Universidade FEEVALE, Novo Hamburgo, Brazil.
| |
Collapse
|
6
|
Durán E, Sepúlveda M, Romero-Hasler P, Valdés F, Villamizar Sarmiento MG, Soto-Bustamante E, Neira-Carrillo A, Neira V, Ignacio Covarrubias J, Oyarzun-Ampuero F, Burgess DJ, Valenzuela C. Parenteral iron nutrition: Iron dextran-poloxamer thermosensitive hydrogel for prolonged intramuscular iron supplementation. Int J Pharm 2024; 663:124559. [PMID: 39122197 DOI: 10.1016/j.ijpharm.2024.124559] [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: 05/10/2024] [Revised: 08/01/2024] [Accepted: 08/04/2024] [Indexed: 08/12/2024]
Abstract
The objective of this study was to evaluate the potential of novel poloxamer thermosensitive hydrogels (PTHs) formulations for prolonged release of iron dextran particles (IDP) for intramuscular (IM) injection. The thermosensitive behaviour helps to avoid hepcidin overexpression and toxicity by releasing IDPs without iron accumulation in injection or deposit sites. We hypothesized that novel PTH formulation would prolong iron liberation compared to the commercial iron dextran formulation (FEDEX). PTHs loaded with IDPs were developed with increasing iron content (0.1, 0.2 and 0.4 g of iron/g of poloxamer) and characterized as a prolonged release IM iron supplement. The PTHs had a biocompatible pH for IM injection (6.4) and thermosensitive viscosity, increasing from ∼50 (4 °C) to ∼3000 mPa.s (37 °C). PTHs were successfully injected in the sol state (at 4 °C) into pork meat at 37 °C, transitioning to the gel state in situ (in ∼60-190 s). Structural characterization indicated that there were no PTH-IDP chemical interactions, suggesting that IDP entrapment in PTHs was physical upon gelation. In vitro release studies revealed that iron release from PTH (0.4 g of iron/g of poloxamer) reached 100 % by day 10, whereas 100 % release from FEDEX was complete in 4 h. This novel iron PTH formulation achieved a 60 times long iron release compared to the commercial product. In conclusion, the reported strategy shows adequate IDP entrapment/release properties for prolonged iron release following ex vivo IM injection using biocompatible materials. These results provide a strong basis for future preclinical evaluation to elucidate aspects such as drug release, local irritation, biocompatibility, and efficacy.
Collapse
Affiliation(s)
- Emerson Durán
- Escuela de Medicina Veterinaria, Facultad de Recursos Naturales y Medicina Veterinaria, Universidad Santo Tomás, Ejercito Libertador 146, Santiago 8370003, Chile; Departamento de Fomento de la Producción Animal, Facultad de Ciencias Veterinarias y Pecuarias, Universidad de Chile, Santa Rosa 11.735, La Pintana, Santiago, Chile; Programa de Doctorado en Ciencias Silvoagropecuarias y Veterinarias, Campus Sur Universidad de Chile, Santa Rosa 11.315, La Pintana, Santiago CP: 8820808, Chile
| | - Marcela Sepúlveda
- Departamento de Fomento de la Producción Animal, Facultad de Ciencias Veterinarias y Pecuarias, Universidad de Chile, Santa Rosa 11.735, La Pintana, Santiago, Chile
| | - Patricio Romero-Hasler
- Departamento de Química Orgánica y Fisicoquímica, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Olivos 1.007, Independencia, Santiago, Chile
| | - Fabrizzio Valdés
- Departamento de Fomento de la Producción Animal, Facultad de Ciencias Veterinarias y Pecuarias, Universidad de Chile, Santa Rosa 11.735, La Pintana, Santiago, Chile
| | - María Gabriela Villamizar Sarmiento
- Departamento de Ciencias y Tecnología Farmacéuticas, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Santos Dumont 964, Independencia, Santiago, Chile
| | - Eduardo Soto-Bustamante
- Departamento de Química Orgánica y Fisicoquímica, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Olivos 1.007, Independencia, Santiago, Chile
| | - Andrónico Neira-Carrillo
- Laboratorios de Materiales Bio-relacionados (CIMAT) y Síntesis y Caracterización de Polímeros Funcionalizados y Biomoléculas (POLYFORMS), Departamento de Ciencias Biológicas Animales, Facultad de Ciencias Veterinarias y Pecuarias, Universidad de Chile, Santa Rosa 11.735, La Pintana, Santiago, Chile
| | - Víctor Neira
- Departamento de Medicina Preventiva, Facultad de Ciencias Veterinarias y Pecuarias, Universidad de Chile, Santa Rosa 11.735, La Pintana, Santiago, Chile
| | - José Ignacio Covarrubias
- Departamento de Producción Agrícola, Facultad de Ciencias Agronómicas, Universidad de Chile, Santa Rosa 11.315, La Pintana, Santiago, Chile
| | - Felipe Oyarzun-Ampuero
- Departamento de Ciencias y Tecnología Farmacéuticas, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Santos Dumont 964, Independencia, Santiago, Chile
| | - Diane J Burgess
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Connecticut, 69 North Eagleville Road, Storrs, CT 06269, USA
| | - Carolina Valenzuela
- Departamento de Fomento de la Producción Animal, Facultad de Ciencias Veterinarias y Pecuarias, Universidad de Chile, Santa Rosa 11.735, La Pintana, Santiago, Chile.
| |
Collapse
|
7
|
Shahien MM, Alshammari A, Ibrahim S, Ahmed EH, Atia HA, Elariny HA, Abdallah MH. Development of Glycerosomal pH Triggered In Situ Gelling System to Ameliorate the Nasal Delivery of Sulpiride for Pediatric Psychosis. Gels 2024; 10:608. [PMID: 39330210 PMCID: PMC11430852 DOI: 10.3390/gels10090608] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2024] [Revised: 09/17/2024] [Accepted: 09/20/2024] [Indexed: 09/28/2024] Open
Abstract
Sulpiride (Sul) is a medication that blocks dopamine D2 receptors. It is used to treat gastrointestinal disturbances and has antipsychotic effects depending on the dose given. Sulpiride is subject to P-glycoprotein efflux, resulting in limited bioavailability and erratic absorption. Hence, the aim of this study was to generate a glycerosomal in situ gel of sulpiride for intranasal administration, specifically targeting children with schizophrenia who may have difficulty swallowing traditional solid medications, for enhancing its bioavailability. This study aimed to demonstrate the efficacy of intranasal administration of glycerin-encapsulated lipid-nanovesicles (glycerosomes) mixed with in situ gels for prolonged release of anti-psychotic medication. A Box-Behnken design was utilized to create sulpiride-loaded glycerosomes (Sul-GMs), with the lipid amount (A), glycerin concentration (B), and sonication time (C) acting as independent variables. Their impact on the entrapment efficiency, EE% (Y1), and in vitro drug release (Y2) were evaluated. The sulpiride EE% showed an increase when the glycerin concentration was raised to 25% v/v. Nevertheless, when the glycerin concentration was raised to 40% v/v, there was a notable decrease in the EE%. The optimized glycerosome was added to pH triggered carbopol 974P in situ gel formulations including HPMC K15M with different concentrations. The in situ gel formulation (G3) comprising 0.6% carbopol 974P and 0.6% hydroxypropyl methyl cellulose-K15M (HPMC K15M) demonstrated suitable pH, viscosity, desired gel strength, spreadability, and mucoadhesive strength. Consequently, it was selected for in vitro study, ex vivo permeation investigation, and in vivo evaluations. The glycerosomal in situ gel exhibited favorable ex vivo permeability of SU when applied to the nasal mucosa. The pharmacokinetic investigation revealed that the optimized Sul-loaded glycerosomal in situ gel exhibited a significant fourfold and twofold enhancement in systemic bioavailability compared to both the control gel and the commercially available formulation. Finally, the intranasal administration of Sul-loaded glycerosomal in situ gel is a promising alternative to oral treatment for pediatric patients with psychosis.
Collapse
Affiliation(s)
- Mona M. Shahien
- Department of Pediatrics, College of Medicine, University of Ha’il, Ha’il 81442, Saudi Arabia; (M.M.S.); (S.I.)
| | - Alia Alshammari
- Department of Pharmaceutics, College of Pharmacy, University of Ha’il, Ha’il 81442, Saudi Arabia;
| | - Somaia Ibrahim
- Department of Pediatrics, College of Medicine, University of Ha’il, Ha’il 81442, Saudi Arabia; (M.M.S.); (S.I.)
| | - Enas Haridy Ahmed
- Department of Anatomy, College of Medicine, University of Ha’il, Ha’il 81442, Saudi Arabia;
- Department of Anatomy and Embryology, Faculty of Medicine, Ain Shams University, Cairo 11566, Egypt
| | - Hanan Abdelmawgoud Atia
- Department of Pharmacology and Toxicology, College of Pharmacy, University of Ha’il, Ha’il 81442, Saudi Arabia; (H.A.A.); (H.A.E.)
- Department of Biochemistry, Faculty of Pharmacy, Al-Azhar University, Cairo 11651, Egypt
| | - Hemat A. Elariny
- Department of Pharmacology and Toxicology, College of Pharmacy, University of Ha’il, Ha’il 81442, Saudi Arabia; (H.A.A.); (H.A.E.)
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Al-Azhar University, Cairo 11651, Egypt
| | - Marwa H. Abdallah
- Department of Pharmaceutics, College of Pharmacy, University of Ha’il, Ha’il 81442, Saudi Arabia;
- Department of Pharmaceutics, Faculty of Pharmacy, Zagazig University, Zagazig 44519, Egypt
| |
Collapse
|
8
|
Boșca AB, Dinte E, Mihu CM, Pârvu AE, Melincovici CS, Șovrea AS, Mărginean M, Constantin AM, Băbțan AM, Muntean A, Ilea A. Local Drug Delivery Systems as Novel Approach for Controlling NETosis in Periodontitis. Pharmaceutics 2024; 16:1175. [PMID: 39339210 PMCID: PMC11435281 DOI: 10.3390/pharmaceutics16091175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2024] [Revised: 09/02/2024] [Accepted: 09/04/2024] [Indexed: 09/30/2024] Open
Abstract
Periodontitis is a chronic inflammation caused by periodontopathogenic bacteria in the dental biofilm, and also involves the inflammatory-immune response of the host. Polymorphonuclear neutrophils (PMNs) play essential roles in bacterial clearance by multiple mechanisms, including the formation of neutrophil extracellular traps (NETs) that retain and destroy pathogens. During PD progression, the interaction between PMNs, NETs, and bacteria leads to an exaggerated immune response and a prolonged inflammatory state. As a lesion matures, PMNs accumulate in the periodontal tissues and die via NETosis, ultimately resulting in tissue injury. A better understanding of the role of NETs, the associated molecules, and the pathogenic pathways of NET formation in periodontitis, could provide markers of NETosis as reliable diagnostic and prognostic tools. Moreover, an assessment of NET biomarker levels in biofluids, particularly in saliva or gingival crevicular fluid, could be useful for monitoring periodontitis progression and treatment efficacy. Preventing excessive NET accumulation in periodontal tissues, by both controlling NETs' formation and their appropriate removal, could be a key for further development of more efficient therapeutic approaches. In periodontal therapy, local drug delivery (LDD) systems are more targeted, enhancing the bioavailability of active pharmacological agents in the periodontal pocket and surrounding tissues for prolonged time to ensure an optimal therapeutic outcome.
Collapse
Affiliation(s)
- Adina Bianca Boșca
- Department of Histology, Faculty of Medicine, “Iuliu Hațieganu” University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania; (A.B.B.)
| | - Elena Dinte
- Department of Pharmaceutical Technology and Biopharmaceutics, Faculty of Pharmacy, “Iuliu Hațieganu” University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania
| | - Carmen Mihaela Mihu
- Department of Histology, Faculty of Medicine, “Iuliu Hațieganu” University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania; (A.B.B.)
| | - Alina Elena Pârvu
- Department of Pathophysiology, Faculty of Medicine, “Iuliu Hațieganu” University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania
| | - Carmen Stanca Melincovici
- Department of Histology, Faculty of Medicine, “Iuliu Hațieganu” University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania; (A.B.B.)
| | - Alina Simona Șovrea
- Department of Histology, Faculty of Medicine, “Iuliu Hațieganu” University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania; (A.B.B.)
| | - Mariana Mărginean
- Department of Histology, Faculty of Medicine, “Iuliu Hațieganu” University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania; (A.B.B.)
| | - Anne-Marie Constantin
- Department of Histology, Faculty of Medicine, “Iuliu Hațieganu” University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania; (A.B.B.)
| | - Anida-Maria Băbțan
- Department of Oral Rehabilitation, Faculty of Dentistry, “Iuliu Hațieganu” University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania (A.I.)
| | - Alexandrina Muntean
- Department of Paediatric Dentistry, Faculty of Dentistry, “Iuliu Hațieganu” University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania
| | - Aranka Ilea
- Department of Oral Rehabilitation, Faculty of Dentistry, “Iuliu Hațieganu” University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania (A.I.)
| |
Collapse
|
9
|
Yang Y, Ma Y, Wang J, Zhang R, Wu M, Zhong S, He W, Cui X. An Injectable Thermosensitive Hydrogel with Antibacterial and Antioxidation Properties for Accelerating Wound Healing. ACS APPLIED MATERIALS & INTERFACES 2024; 16:46053-46065. [PMID: 39171732 DOI: 10.1021/acsami.4c09465] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/23/2024]
Abstract
As a new type of wound dressing, hydrogels have attracted more and more attention. However, traditional hydrogel wound dressings lack inherent antibacterial properties and are difficult to match irregular wounds, which leads to an easy wound bacterial infection. To solve the problems associated with traditional hydrogels, in this research, a thermosensitive hydrogel (PFLD) for wound dressings was developed based on Poloxamer 407 (PF127), lysine (Lys), and 3,4-dihydroxyphenylacetic acid (DOPAC). Rheological tests indicated that the PFLD hydrogel possesses injectability, adaptability to deformation, and sufficient mechanical strength for wound dressing applications. In addition, it could in situ gel at 33 °C, which indicated that the hydrogel could undergo sol-to-gel transition under body temperature. Upon using it in wound treatment, it could adapt to irregular wounds to achieve full coverage of the wound and promote the rapid hemostasis of wound bleeding. Due to the presence of DOPAC in the hydrogel, it exhibited excellent antibacterial and antioxidant properties on the wounds. The skin defect model showed that the wound shrinkage was the fastest after PFLD hydrogel treatment. On day 14, the wound shrinkage rates were 81.68 and 99.77% for the control and PFLD hydrogel groups, respectively. Therefore, the PFLD hydrogel has a broad application prospect as a dressing for the treatment of irregular wounds.
Collapse
Affiliation(s)
- Yongyan Yang
- College of Chemistry, Jilin University, Changchun 130012, P. R. China
| | - Ying Ma
- College of Veterinary Medicine, Jilin University, Changchun 130012, P. R. China
| | - Jingfei Wang
- College of Chemistry, Jilin University, Changchun 130012, P. R. China
| | - Ruiting Zhang
- College of Chemistry, Jilin University, Changchun 130012, P. R. China
| | - Meiyi Wu
- College of Chemistry, Jilin University, Changchun 130012, P. R. China
| | - Shuangling Zhong
- College of Resources and Environment, Jilin Agricultural University, Changchun 130118, P. R. China
| | - Wenqi He
- College of Veterinary Medicine, Jilin University, Changchun 130012, P. R. China
| | - Xuejun Cui
- College of Chemistry, Jilin University, Changchun 130012, P. R. China
- Weihai Institute for Bionics-Jilin University, Weihai 264400, P. R. China
| |
Collapse
|
10
|
Shobeirean A, Attar H, Varshochian R, Rezvanfar MA. Glatiramer acetate in situ forming gel, a new approach for multiple sclerosis treatment. Daru 2024:10.1007/s40199-024-00532-z. [PMID: 39225953 DOI: 10.1007/s40199-024-00532-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2024] [Accepted: 07/25/2024] [Indexed: 09/04/2024] Open
Abstract
BACKGROUND Glatiramer acetate (GA), a commonly used treatment for multiple sclerosis (MS), requires long-term frequent injections to ensure its effectiveness. This often leads to adverse effects, patient noncompliance, and economic inefficiency. OBJECTIVES In this study, poloxamer, as a thermosensitive polymer modified by chitosan (CS) and hyaluronic acid (HA), was employed to prepare an in situ forming prolonged release formulation of GA to overcome the problems derived from frequent repeated injections and to enhance the patient compliance. METHODS The sol-gel formulation was produced through a cold method and optimized using design of experiments. The final product was characterized in terms of gelation time (GT), rheological behaviors, morphological properties, assay, and drug release kinetics. RESULTS The in vitro release rate of GA during the first 24 h was quite rapid, but then it continued at a slower rate of 0.05 mg ml-1h-1. The in vivo analysis after the subcutaneous injections showed lower levels of IL-5, IL-13, and uric acid (UA) in mice treated with the gel formulation compared with those receiving free GA in the first few days. However, after 10 days, significantly higher concentrations were detected, which continued to increase slowly. CONCLUSION It can be concluded that the designed thermosensitive sol-gel formula is capable of extending the effectiveness of GA and can be considered as a promising sustained release formulation for the treatment of MS.
Collapse
Affiliation(s)
- Anahita Shobeirean
- Department of Chemical Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Hossein Attar
- Department of Chemical Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Reyhaneh Varshochian
- Department of Pharmaceutics and Pharmaceutical Nanotechnology, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Mohammad Amin Rezvanfar
- Department of Toxicology and Pharmacology, Faculty of Pharmacy, Pharmaceutical Sciences Research Center, Tehran University of Medical Sciences, Tehran, Iran
| |
Collapse
|
11
|
Kinali H, Kalaycioglu GD, Boyacioglu O, Korkusuz P, Aydogan N, Vargel I. Clinic-oriented injectable smart material for the treatment of diabetic wounds: Coordinating the release of GM-CSF and VEGF. Int J Biol Macromol 2024; 276:133661. [PMID: 38992546 DOI: 10.1016/j.ijbiomac.2024.133661] [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: 04/03/2024] [Revised: 06/16/2024] [Accepted: 07/02/2024] [Indexed: 07/13/2024]
Abstract
Chronic wounds are often caused by diabetes and present a challenging clinical problem due to vascular problems leading to ischemia. This inhibits proper wound healing by delaying inflammatory responses and angiogenesis. To address this problem, we have developed injectable particle-loaded hydrogels which sequentially release Granulocyte-macrophage- colony-stimulating-factor (GM-CSF) and Vascular endothelial growth factor (VEGF) encapsulated in polycaprolactone-lecithin-geleol mono-diglyceride hybrid particles. GM-CSF promotes inflammation, while VEGF facilitates angiogenesis. The hybrid particles (200-1000 nm) designed within the scope of the study can encapsulate the model proteins Bovine Serum Albumin 65 ± 5 % and Lysozyme 77 ± 10 % and can release stably for 21 days. In vivo tests and histological findings revealed that in the hydrogels containing GM-CSF/VEGF-loaded hybrid particles, wound depth decreased, inflammation phase increased, and fibrotic scar tissue decreased, while mature granulation tissue was formed on day 10. These findings confirm that the hybrid particles first initiate the inflammation phase by delivering GM-CSF, followed by VEGF, increasing the number of vascularization and thus increasing the healing rate of wounds. We emphasize the importance of multi-component and sequential release in wound healing and propose a unifying therapeutic strategy to sequentially deliver ligands targeting wound healing stages, which is very important in the treatment of the diabetic wounds.
Collapse
Affiliation(s)
- Hurmet Kinali
- Department of Bioengineering, Graduate School of Science and Engineering, Hacettepe University, Beytepe, Ankara 06800, Turkey
| | - Gokce Dicle Kalaycioglu
- Department of Chemical Engineering, Faculty of Engineering, Hacettepe University, Ankara 06800, Turkey
| | - Ozge Boyacioglu
- Department of Bioengineering, Graduate School of Science and Engineering, Hacettepe University, Beytepe, Ankara 06800, Turkey; Department of Medical Biochemistry, Faculty of Medicine, Atılım University, 06830 Gölbaşı, Ankara, Turkey
| | - Petek Korkusuz
- Department of Histology and Embryology, Faculty of Medicine, Hacettepe University, 06100 Sıhhiye, Ankara, Turkey
| | - Nihal Aydogan
- Department of Bioengineering, Graduate School of Science and Engineering, Hacettepe University, Beytepe, Ankara 06800, Turkey; Department of Chemical Engineering, Faculty of Engineering, Hacettepe University, Ankara 06800, Turkey.
| | - Ibrahim Vargel
- Department of Bioengineering, Graduate School of Science and Engineering, Hacettepe University, Beytepe, Ankara 06800, Turkey; Department of Plastic and Reconstructive Surgery, Faculty of Medicine, Hacettepe University, 06560 Ankara, Turkey.
| |
Collapse
|
12
|
Bedogni G, Michelena LV, Seremeta K, Okulik N, Salomon C. Exploring the Dissolution, Solid-state Properties, and Long-term Storage Stability of Cryoprotectant-free Fenbendazole Nanoparticles. AAPS PharmSciTech 2024; 25:199. [PMID: 39198340 DOI: 10.1208/s12249-024-02921-8] [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: 06/06/2024] [Accepted: 08/14/2024] [Indexed: 09/01/2024] Open
Abstract
Fenbendazole is an antiparasitic drug widely used in veterinary medicine to treat parasitic infections caused in animals like cattle, horses, sheep, and dogs. Recently, it has been repositioned as a potential alternative for cancer treatment. However, it is a highly hydrophobic molecule (0.9 ug/mL), which can compromise its dissolution rate and absorption. Thus, this work aimed to apply a nanotechnological approach to improve drug solubility and dissolution performance. Fenbendazole nanoparticles stabilized by different poloxamers were obtained by lyophilization without cryoprotectants. The behavior of the drug in the solid state was analyzed by X-ray diffractometry, differential scanning calorimetry, and infrared spectroscopy. The nanosystems were also evaluated for solubility and dissolution rate. A long-term stability evaluation was performed for three years at room temperature. The yields of the lyophilization ranged between 75 and 81% for each lot. The nanoparticles showed a submicron size (< 340 nm) and a low polydispersity depending on the stabilizer. The physicochemical properties of the prepared systems indicated a remarkable amorphization of the drug, which influenced its solubility and dissolution performance. The drug dissolution from both the fresh and aged nanosystems was significantly higher than that of the raw drug. In particular, nanoparticles prepared with poloxamer 407 showed no significant modifications in their particle size in three years of storage. Physical stability studies indicated that the obtained systems prepared with P188, P237, and P407 suffered certain recrystallization during long storage at 25 °C. These findings confirm that selected poloxamers exhibited an important effect in formulating fenbendazole nanosystems with improved dissolution.
Collapse
Affiliation(s)
- Giselle Bedogni
- Instituto de Química Rosario, Consejo Nacional de Investigaciones Científicas y Técnicas (IQUIR-CONICET), Suipacha 531, Rosario, 2000, Argentina
| | - Lina Vargas Michelena
- Instituto de Química Rosario, Consejo Nacional de Investigaciones Científicas y Técnicas (IQUIR-CONICET), Suipacha 531, Rosario, 2000, Argentina
| | - Katia Seremeta
- Departamento de Ciencias Básicas y Aplicadas, Universidad Nacional del Chaco Austral, Cte. Fernández 755, Pcia. Roque Sáenz Peña, Chaco, 3700, Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Chaco, Presidencia Roque Sáenz Peña, Argentina
| | - Nora Okulik
- Departamento de Ciencias Básicas y Aplicadas, Universidad Nacional del Chaco Austral, Cte. Fernández 755, Pcia. Roque Sáenz Peña, Chaco, 3700, Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Chaco, Presidencia Roque Sáenz Peña, Argentina
| | - Claudio Salomon
- Instituto de Química Rosario, Consejo Nacional de Investigaciones Científicas y Técnicas (IQUIR-CONICET), Suipacha 531, Rosario, 2000, Argentina.
- Área Técnica Farmacéutica, Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario, Suipacha 531, Rosario, 2000, Argentina.
| |
Collapse
|
13
|
Omer S, Nagy N, Pinke B, Mészáros L, Kazsoki A, Zelkó R. Development and Evaluation of Different Electrospun Cysteamine-Loaded Nanofibrous Webs: A Promising Option for Treating a Rare Lysosomal Storage Disorder. Pharmaceutics 2024; 16:1052. [PMID: 39204398 PMCID: PMC11360779 DOI: 10.3390/pharmaceutics16081052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2024] [Revised: 08/05/2024] [Accepted: 08/05/2024] [Indexed: 09/04/2024] Open
Abstract
Nanofibers can be utilized to overcome the challenges faced by conventional ophthalmic formulations. This study aimed to develop and characterize cysteamine (Cys)-loaded nanofiber-based ophthalmic inserts (OIs) as a potential candidate for the treatment of ophthalmic cystinosis using water-soluble polyvinyl alcohol (PVA)/poloxamer 407 (PO-407) and water-insoluble tetraethoxysilane (TEOS)/PVA nanofibers. Plain and Cys-loaded fibers in different proportions were prepared by the electrospinning method and studied for their morphological, physicochemical, release study, cytocompatibility effects, and stability study. The fiber formation was confirmed by scanning electron microscopy, while Fourier transform infrared spectra showed the most critical peaks for the Cys and the excipients. The release of the Cys was fast from the two polymeric matrices (≤20 min). The release from TEOS/PVA nanofibers is characterized by Case II transport (0.75 < β < 1), while the release from PVA/PO-407 nanofibers follows Fickian diffusion (β < 0.75). The cytocompatibility of compositions was confirmed by hen eggs tested on the chorioallantoic membrane (HET-CAM) of chick embryos. All formulations remained stable under stress conditions (40 ± 2 °C, 75 ± 5% relative humidity) regarding morphology and physicochemical characteristics. The developed nanofibrous mats could be an excellent alternative to available Cys drops, with better stability and convenience of self-administration as OIs.
Collapse
Affiliation(s)
- Safaa Omer
- Center of Pharmacology and Drug Research & Development, University Pharmacy Department of Pharmacy Administration, Semmelweis University, Hőgyes Endre Street 7-9, H-1092 Budapest, Hungary;
| | - Nándor Nagy
- Department of Anatomy, Histology and Embryology, Semmelweis University, Tűzoltó Street 58, H-1094 Budapest, Hungary;
| | - Balázs Pinke
- Department of Polymer Engineering, Faculty of Mechanical Engineering, Budapest University of Technology and Economics, Műegyetem Rkp. 3, H-1111 Budapest, Hungary; (B.P.)
| | - László Mészáros
- Department of Polymer Engineering, Faculty of Mechanical Engineering, Budapest University of Technology and Economics, Műegyetem Rkp. 3, H-1111 Budapest, Hungary; (B.P.)
| | - Adrienn Kazsoki
- Center of Pharmacology and Drug Research & Development, University Pharmacy Department of Pharmacy Administration, Semmelweis University, Hőgyes Endre Street 7-9, H-1092 Budapest, Hungary;
| | - Romána Zelkó
- Center of Pharmacology and Drug Research & Development, University Pharmacy Department of Pharmacy Administration, Semmelweis University, Hőgyes Endre Street 7-9, H-1092 Budapest, Hungary;
| |
Collapse
|
14
|
Jose AD, Foo KL, Hu G, Ngar L, Ryda B, Jaiswal J, Wu Z, Agarwal P, Thakur SS. Design and evaluation of curcumin-loaded poloxamer hydrogels as injectable depot formulations. Eur J Pharm Biopharm 2024; 201:114372. [PMID: 38897552 DOI: 10.1016/j.ejpb.2024.114372] [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: 02/27/2024] [Revised: 06/06/2024] [Accepted: 06/16/2024] [Indexed: 06/21/2024]
Abstract
Poloxamer hydrogels are of interest as injectable depot delivery systems. However, their use for delivering hydrophobic drugs, such as curcumin, is limited due to poor loading capacity. Here, we evaluated the influence of incorporating hydrophobic medium chain triglycerides (MCT) or amphiphilic polyethylene glycol 400 (PEG400) on the physicochemical properties, drug loading, and in vitro compatibility of a curcumin-loaded poloxamer hydrogel. Poloxamer 407 and 188 hydrogel formulations (16:6 w/w) were prepared and MCT and PEG400 (saturated with curcumin) were added to these systems, either alone or in combination, up to a 10 % w/w additive solvent load. Formulation viscoelasticity, gelation behaviour, injectability, morphology and release profiles were assessed. The cytocompatibility of the formulations was also assessed on dermal fibroblasts (HDFn). Both additives increased curcumin loading into the formulation. Addition of MCT to the hydrogel significantly increased its gelation speed, while PEG400 had a less profound impact. Both additive solvents increased the force required to inject the formulation. PEG400 containing systems were single phase, whereas MCT addition created emulsion systems. All formulations released ∼20-30 % of their loaded curcumin in a sustained fashion over 24 h. The modified hydrogel systems showed good biocompatibility on cells when administering up to ∼100-150 µM curcumin into the culture. This study addresses a key limitation in loading hydrophobic drugs into hydrogels and provides a strategy to enhance drug loading and performance of hydrogels by integrating additives such as MCT and PEG400 into the systems.
Collapse
Affiliation(s)
- Ashok David Jose
- School of Pharmacy, Faculty of Medical and Health Sciences, University of Auckland, Private Bag 92019, Auckland 1142, New Zealand
| | - Kea Leigh Foo
- School of Pharmacy, Faculty of Medical and Health Sciences, University of Auckland, Private Bag 92019, Auckland 1142, New Zealand
| | - Grace Hu
- School of Pharmacy, Faculty of Medical and Health Sciences, University of Auckland, Private Bag 92019, Auckland 1142, New Zealand
| | - Linda Ngar
- School of Pharmacy, Faculty of Medical and Health Sciences, University of Auckland, Private Bag 92019, Auckland 1142, New Zealand
| | - Bovinae Ryda
- School of Pharmacy, Faculty of Medical and Health Sciences, University of Auckland, Private Bag 92019, Auckland 1142, New Zealand
| | - Jagdish Jaiswal
- Auckland Cancer Society Research Centre, Faculty of Medical and Health Sciences, University of Auckland, Private Bag 92019, Auckland 1142, New Zealand
| | - Zimei Wu
- School of Pharmacy, Faculty of Medical and Health Sciences, University of Auckland, Private Bag 92019, Auckland 1142, New Zealand
| | - Priyanka Agarwal
- Buchanan Ocular Therapeutics Unit, Department of Ophthalmology, New Zealand National Eye Centre, Faculty of Medical and Health Sciences, University of Auckland, Private Bag 92019, Auckland 1142, New Zealand.
| | - Sachin Sunil Thakur
- School of Pharmacy, Faculty of Medical and Health Sciences, University of Auckland, Private Bag 92019, Auckland 1142, New Zealand.
| |
Collapse
|
15
|
Karpuz M, Aydin HH, Ozgenc E, Erel-Akbaba G, Atlihan-Gundogdu E, Senyigit Z. 99mTc-labeled, tofacitinib citrate encapsulated chitosan microspheres loaded in situ gel formulations for intra-articular treatment of rheumatoid arthritis. Drug Dev Res 2024; 85:e22247. [PMID: 39138857 DOI: 10.1002/ddr.22247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2024] [Revised: 07/07/2024] [Accepted: 07/28/2024] [Indexed: 08/15/2024]
Abstract
Inflammatory diseases including rheumatoid arthritis are major health problems. Although different techniques and drugs are clinically available for the diagnosis and therapy of the disease, novel approaches regarding radiolabeled drug delivery systems are researched. Hence, in the present study, it was aimed to design, prepare, and characterize 99mTc-radiolabeled and tofacitinib citrate-encapsulated microsphere loaded poloxamer in situ gel formulations for the intra-articular treatment. Among nine different microsphere formulations, MS/TOFA-9 was chosen as the most proper one due to particle size, high encapsulation efficiency, and in vitro drug release behavior. Poloxamer 338 at a concentration of 15% was used to prepare in situ gel formulations. For intra-articular administration, microspheres were dispersed in an in situ gel containing 15% Poloxamer 338 and characterized in terms of gelation temperature, viscosity, rheological, mechanical, and spreadability properties. After the determination of the safe dose for MS/TOFA-9 and PLX-MS/TOFA-9 as 40 µL/mL in the cell culture study performed on healthy cells, the high anti-inflammatory effects were due to significant cellular inhibition of fibroblasts. In the radiolabeling studies with 99mTc, the optimum radiolabeling condition was determined as 200 ppm SnCl2 and 0.5 mg ascorbic acid, and both 99mTc-MS/TOFA-9 and 99mTc-PLX-MS/TOFA-9 exhibited high cellular binding capacity. In conclusion, although further in vivo experiments are required, PLX-MS/TOFA-9 was found to be a promising agent for intra-articular injection in rheumatoid arthritis.
Collapse
Affiliation(s)
- Merve Karpuz
- Department of Radiopharmacy, Faculty of Pharmacy, Izmir Katip Celebi University, Izmir, Turkey
| | - Husniye Hande Aydin
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Izmir Katip Celebi University, Izmir, Turkey
| | - Emre Ozgenc
- Department of Radiopharmacy, Faculty of Pharmacy, Ege University, Izmir, Turkey
| | - Gulsah Erel-Akbaba
- Department of Pharmaceutical Biotechnology, Faculty of Pharmacy, Izmir Katip Celebi University, Izmir, Turkey
| | | | - Zeynep Senyigit
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Izmir Katip Celebi University, Izmir, Turkey
| |
Collapse
|
16
|
Aguilar-Vázquez R, Romero-Montero A, Del Prado-Audelo ML, Cariño-Calvo L, González-Del Carmen M, Vizcaíno-Dorado PA, Caballero-Florán IH, Peña-Corona SI, Chávez-Corona JI, Bernad-Bernad MJ, Magaña JJ, Cortés H, Leyva-Gómez G. Biopolymeric Insulin Membranes for Antimicrobial, Antioxidant, and Wound Healing Applications. Pharmaceutics 2024; 16:1012. [PMID: 39204356 PMCID: PMC11360745 DOI: 10.3390/pharmaceutics16081012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2024] [Revised: 07/12/2024] [Accepted: 07/26/2024] [Indexed: 09/04/2024] Open
Abstract
Delayed wound healing increases the wound's vulnerability to possible infections, which may have lethal outcomes. The treatments available can be effective, but the urgency is not fully encompassed. The drug repositioning strategy proposes effective alternatives for enhancing medical therapies for chronic diseases. Likewise, applying wound dressings as biodegradable membranes is extremely attractive due to their ease of application, therapeutic effectiveness, and feasibility in industrial manufacturing. This article aims to demonstrate the pleiotropic effects during insulin repositioning in wound closure by employing a biopolymeric membrane-type formulation with insulin. We prepared biopolymeric membranes with sodium alginate cross-linked with calcium chloride, supported in a mixture of xanthan gum and guar gum, and plasticized with glycerol and sorbitol. Human insulin was combined with poloxamer 188 as a protein stabilizing agent. Our investigation encompassed physicochemical and mechanical characterization, antioxidant and biological activity through antibacterial tests, cell viability assessments, and scratch assays as an in vitro and in vivo wound model. We demonstrated that our biopolymeric insulin membranes exhibited adequate manipulation and suitable mechanical resistance, transparency, high swelling capability (1100%), and 30% antioxidant activity. Furthermore, they exhibited antibacterial activity (growth inhibition of S. aureus at 85% and P. aeruginosa at 75%, respectively), and insulin promoted wound closure in vitro with a 5.5-fold increase and 72% closure at 24 h. Also, insulin promoted in vivo wound closure with a 3.2-fold increase and 92% closure at 10 days compared with the groups without insulin, and this is the first report that demonstrates this therapeutic effect with two administrations of 0.7 IU. In conclusion, we developed a multifunctional insulin-loaded biopolymeric membrane in this study, with the main activity derived from insulin's role in wound closure and antioxidant activity, augmented by the antimicrobial effect attributed to the polymer poloxamer 188. The synergistic combination of excipients enhances its usefulness and highlights our innovation as a promising material in wound healing materials.
Collapse
Affiliation(s)
- Rocío Aguilar-Vázquez
- Departamento de Farmacia, Facultad de Química, Universidad Nacional Autónoma de México, Ciudad de México 04510, Mexico; (R.A.-V.); (A.R.-M.); (S.I.P.-C.); (J.I.C.-C.); (M.J.B.-B.)
| | - Alejandra Romero-Montero
- Departamento de Farmacia, Facultad de Química, Universidad Nacional Autónoma de México, Ciudad de México 04510, Mexico; (R.A.-V.); (A.R.-M.); (S.I.P.-C.); (J.I.C.-C.); (M.J.B.-B.)
| | - María L. Del Prado-Audelo
- Tecnologico de Monterrey, Escuela de Ingenieria y Ciencias, Campus Ciudad de Mexico, Ciudad de Mexico 14380, Mexico; (M.L.D.P.-A.); (I.H.C.-F.); (J.J.M.)
| | | | | | - Pablo Adrián Vizcaíno-Dorado
- Laboratorio de Medicina Genómica, Departamento de Genómica, Instituto Nacional de Rehabilitación Luis Guillermo Ibarra Ibarra, Ciudad de México 14389, Mexico; (P.A.V.-D.); (H.C.)
| | - Isaac Hiram Caballero-Florán
- Tecnologico de Monterrey, Escuela de Ingenieria y Ciencias, Campus Ciudad de Mexico, Ciudad de Mexico 14380, Mexico; (M.L.D.P.-A.); (I.H.C.-F.); (J.J.M.)
| | - Sheila Iraís Peña-Corona
- Departamento de Farmacia, Facultad de Química, Universidad Nacional Autónoma de México, Ciudad de México 04510, Mexico; (R.A.-V.); (A.R.-M.); (S.I.P.-C.); (J.I.C.-C.); (M.J.B.-B.)
| | - Juan Isaac Chávez-Corona
- Departamento de Farmacia, Facultad de Química, Universidad Nacional Autónoma de México, Ciudad de México 04510, Mexico; (R.A.-V.); (A.R.-M.); (S.I.P.-C.); (J.I.C.-C.); (M.J.B.-B.)
- Laboratorio de Investigación y Posgrado en Tecnología Farmacéutica, Universidad Nacional Autónoma de México-FESC, Campus 1, Cuautitlán Izcalli 54714, Mexico
| | - María Josefa Bernad-Bernad
- Departamento de Farmacia, Facultad de Química, Universidad Nacional Autónoma de México, Ciudad de México 04510, Mexico; (R.A.-V.); (A.R.-M.); (S.I.P.-C.); (J.I.C.-C.); (M.J.B.-B.)
| | - Jonathan J. Magaña
- Tecnologico de Monterrey, Escuela de Ingenieria y Ciencias, Campus Ciudad de Mexico, Ciudad de Mexico 14380, Mexico; (M.L.D.P.-A.); (I.H.C.-F.); (J.J.M.)
- Laboratorio de Medicina Genómica, Departamento de Genómica, Instituto Nacional de Rehabilitación Luis Guillermo Ibarra Ibarra, Ciudad de México 14389, Mexico; (P.A.V.-D.); (H.C.)
| | - Hernán Cortés
- Laboratorio de Medicina Genómica, Departamento de Genómica, Instituto Nacional de Rehabilitación Luis Guillermo Ibarra Ibarra, Ciudad de México 14389, Mexico; (P.A.V.-D.); (H.C.)
| | - Gerardo Leyva-Gómez
- Departamento de Farmacia, Facultad de Química, Universidad Nacional Autónoma de México, Ciudad de México 04510, Mexico; (R.A.-V.); (A.R.-M.); (S.I.P.-C.); (J.I.C.-C.); (M.J.B.-B.)
- Departamento de Fisiología, Biofísica y Neurociencias, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Ciudad de México 04510, Mexico
| |
Collapse
|
17
|
Khodadadi Yazdi M, Seidi F, Hejna A, Zarrintaj P, Rabiee N, Kucinska-Lipka J, Saeb MR, Bencherif SA. Tailor-Made Polysaccharides for Biomedical Applications. ACS APPLIED BIO MATERIALS 2024; 7:4193-4230. [PMID: 38958361 PMCID: PMC11253104 DOI: 10.1021/acsabm.3c01199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2023] [Revised: 05/28/2024] [Accepted: 05/28/2024] [Indexed: 07/04/2024]
Abstract
Polysaccharides (PSAs) are carbohydrate-based macromolecules widely used in the biomedical field, either in their pure form or in blends/nanocomposites with other materials. The relationship between structure, properties, and functions has inspired scientists to design multifunctional PSAs for various biomedical applications by incorporating unique molecular structures and targeted bulk properties. Multiple strategies, such as conjugation, grafting, cross-linking, and functionalization, have been explored to control their mechanical properties, electrical conductivity, hydrophilicity, degradability, rheological features, and stimuli-responsiveness. For instance, custom-made PSAs are known for their worldwide biomedical applications in tissue engineering, drug/gene delivery, and regenerative medicine. Furthermore, the remarkable advancements in supramolecular engineering and chemistry have paved the way for mission-oriented biomaterial synthesis and the fabrication of customized biomaterials. These materials can synergistically combine the benefits of biology and chemistry to tackle important biomedical questions. Herein, we categorize and summarize PSAs based on their synthesis methods, and explore the main strategies used to customize their chemical structures. We then highlight various properties of PSAs using practical examples. Lastly, we thoroughly describe the biomedical applications of tailor-made PSAs, along with their current existing challenges and potential future directions.
Collapse
Affiliation(s)
- Mohsen Khodadadi Yazdi
- Division
of Electrochemistry and Surface Physical Chemistry, Faculty of Applied
Physics and Mathematics, Gdańsk University
of Technology, Narutowicza
11/12, 80-233 Gdańsk, Poland
- Advanced
Materials Center, Gdańsk University
of Technology, Narutowicza
11/12, 80-233 Gdańsk, Poland
| | - Farzad Seidi
- Jiangsu
Co−Innovation Center for Efficient Processing and Utilization
of Forest Resources and International Innovation Center for Forest
Chemicals and Materials, Nanjing Forestry
University, Nanjing 210037, China
| | - Aleksander Hejna
- Institute
of Materials Technology, Poznan University
of Technology, PL-61-138 Poznań, Poland
| | - Payam Zarrintaj
- School
of Chemical Engineering, Oklahoma State
University, 420 Engineering
North, Stillwater, Oklahoma 74078, United States
| | - Navid Rabiee
- Department
of Biomaterials, Saveetha Dental College and Hospitals, SIMATS, Saveetha University, Chennai 600077, India
| | - Justyna Kucinska-Lipka
- Department
of Polymer Technology, Faculty of Chemistry, Gdańsk University of Technology, 80-233 Gdańsk, Poland
| | - Mohammad Reza Saeb
- Department
of Pharmaceutical Chemistry, Medical University
of Gdańsk, J.
Hallera 107, 80-416 Gdańsk, Poland
| | - Sidi A. Bencherif
- Chemical
Engineering Department, Northeastern University, Boston, Massachusetts 02115, United States
- Department
of Bioengineering, Northeastern University, Boston, Massachusetts 02115, United States
- Harvard
John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138, United States
| |
Collapse
|
18
|
Zeneli E, Lange JJ, Holm R, Kuentz M. A study of hydrophobic domain formation of polymeric drug precipitation inhibitors in aqueous solution. Eur J Pharm Sci 2024; 198:106791. [PMID: 38705420 DOI: 10.1016/j.ejps.2024.106791] [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: 11/09/2023] [Revised: 04/17/2024] [Accepted: 05/03/2024] [Indexed: 05/07/2024]
Abstract
Despite the widespread use of polymers as precipitation inhibitors in supersaturating drug formulations, the current understanding of their mechanisms of action is still incomplete. Specifically, the role of hydrophobic drug interactions with polymers by considering possible supramolecular conformations in aqueous dispersion is an interesting topic. Accordingly, this study investigated the tendency of polymers to create hydrophobic domains, where lipophilic compounds may nest to support drug solubilisation and supersaturation. Fluorescence spectroscopy with the environment-sensitive probe pyrene was compared with atomistic molecular dynamics simulations of the model drug fenofibrate (FENO). Subsequently, kinetic drug supersaturation and thermodynamic solubility experiments were conducted. As a result, the different polymers showed hydrophobic domain formation to a varying degree and the molecular simulations supported interpretation of fluorescence spectroscopy data. Molecular insights were gained into the conformational structure of how the polymers interacted with FENO in solution phase, which apart from nucleation and crystal growth effects, determined drug concentrations in solution. Notable was that even at the lowest polymer concentration of 0.01 %, w/v, there were polymer-specific solubilisation effects of FENO observed and the resulting reduction in apparent drug supersaturation provided relevant knowledge both from a mechanistic and practical perspective.
Collapse
Affiliation(s)
- Egis Zeneli
- Institute of Pharma Technology, University of Applied Sciences and Arts Northwestern Switzerland, Hofackerstr. 30, Muttenz CH-4132, Switzerland; Institute of Pharmaceutical Technology, University of Basel, Basel, Switzerland
| | | | - René Holm
- Department of Physics, Chemistry and Pharmacy, University of Southern Denmark, Odense, Denmark
| | - Martin Kuentz
- Institute of Pharma Technology, University of Applied Sciences and Arts Northwestern Switzerland, Hofackerstr. 30, Muttenz CH-4132, Switzerland.
| |
Collapse
|
19
|
Roy CF, Cohen-Tenoudji B, Mijovic T. Ceftazidime Poloxamer Gel: Expanding the Therapeutic Armamentarium for Ciprofloxacin-Resistant Pseudomonas Mastoid Cavity Otorrhea. Otol Neurotol 2024; 45:e490-e493. [PMID: 38773842 DOI: 10.1097/mao.0000000000004206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/24/2024]
Abstract
OBJECTIVE To present and evaluate the treatment of ciprofloxacin-resistant Pseudomonas mastoid cavity otorrhea with a ceftazidime thermosensitive poloxamer gel. STUDY DESIGN A retrospective clinical capsule report. PATIENTS Three patients diagnosed with ciprofloxacin-resistant Pseudomonas otorrhea in the setting of a previous canal-wall-down mastoidectomy between March 2019 and June 2023 visiting our tertiary care institution were retrospectively reviewed. INTERVENTION Application of a 2% ceftazidime thermosensitive poloxamer gel to mastoid cavity. MAIN OUTCOME MEASURES No evidence of disease during microscopic inspection of the ear within a month of initial treatment or bacterial eradication on subsequent culture. RESULTS Two patients had complete resolution of symptoms and achieved a safe and dry ear after topical application of the hydrogel. The second patient had pseudomonal eradication on culture, but persistent otorrhea due to other multidrug-resistant bacteria and an anatomically unfavorable mastoid cavity, which ultimately resolved after revision surgery. CONCLUSIONS This small case series suggests that topical treatment of mastoid cavity otorrhea with a 2% ceftazidime poloxomer gel is a potential therapeutic avenue in patients with ciprofloxacin-resistant Pseudomonas .
Collapse
Affiliation(s)
- Catherine F Roy
- Department of Otolaryngology Head & Neck Surgery, McGill University Health Center, Montreal, QC, Canada
| | | | - Tamara Mijovic
- Department of Otolaryngology Head & Neck Surgery, McGill University Health Center, Montreal, QC, Canada
| |
Collapse
|
20
|
Ivanova N, Ermenlieva N, Simeonova L, Vilhelmova-Ilieva N, Bratoeva K, Stoyanov G, Andonova V. In Situ Gelling Behavior and Biopharmaceutical Characterization of Nano-Silver-Loaded Poloxamer Matrices Designed for Nasal Drug Delivery. Gels 2024; 10:385. [PMID: 38920931 PMCID: PMC11203177 DOI: 10.3390/gels10060385] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2024] [Revised: 05/25/2024] [Accepted: 05/29/2024] [Indexed: 06/27/2024] Open
Abstract
A combination of Poloxamer 407 (P407) and hydroxypropyl methylcellulose (HPMC) hydrosols is proposed as an in situ thermo-gelling vehicle for the nasal drug delivery of chlorhexidine-silver nanoparticles conjugates (SN-CX). Optimization of the formulation was carried out by applying varying ratios of P407 and HPMC in the presence and absence of SN-CX so that gelation would occur in the temperature range of the nasal cavity (30-34 °C). Mechanisms for the observed gelation phenomena were suggested based on viscosimetry, texture analysis, and dynamic light scattering. Tests were carried out for sprayability, washout time, in vitro drug release, ex vivo permeation, and antimicrobial activity. When applied separately, HPMC was found to lower the P407 gelation temperature (Tg), whereas SN-CX increased it. However, in the presence of HPMC, SN-CX interfered with the P407 micellar organization in a principally contrasting way while leading to an even further decrease in Tg. SN-CX-loaded nasal formulations composed of P407 16% and HPMC 0.1% demonstrated a desired gelation at 31.9 °C, good sprayability (52.95% coverage of the anterior nasal cavity), mucoadhesion for 70 min under simulated nasal clearance, expedient release and permeation, and preserved anti-infective activity against seasonal Influenza virus and beta-coronavirus, Pseudomonas aeruginosa, Klebsiella pneumoniae, Staphylococcus aureus and other pathogens. Our findings suggest that the current development could be considered a potential formulation of a protective nasal spray against respiratory infections.
Collapse
Affiliation(s)
- Nadezhda Ivanova
- Department of Pharmaceutical Technologies, Faculty of Pharmacy, Medical University of Varna, 9000 Varna, Bulgaria;
| | - Neli Ermenlieva
- Department of Microbiology and Virology, Faculty of Medicine, Medical University of Varna, 9000 Varna, Bulgaria;
| | - Lora Simeonova
- Department of Virology, Stephan Angeloff Institute of Microbiology, Bulgarian Academy of Sciences, 26 G. Bonchev Str., 1113 Sofia, Bulgaria; (L.S.); (N.V.-I.)
| | - Neli Vilhelmova-Ilieva
- Department of Virology, Stephan Angeloff Institute of Microbiology, Bulgarian Academy of Sciences, 26 G. Bonchev Str., 1113 Sofia, Bulgaria; (L.S.); (N.V.-I.)
| | - Kameliya Bratoeva
- Department of Physiology and Pathophysiology, Faculty of Medicine, Medical University of Varna, 9000 Varna, Bulgaria;
| | - Georgi Stoyanov
- Clinical Pathology, Complex Oncology Center, 9700 Shumen, Bulgaria;
| | - Velichka Andonova
- Department of Pharmaceutical Technologies, Faculty of Pharmacy, Medical University of Varna, 9000 Varna, Bulgaria;
| |
Collapse
|
21
|
Masclef J, Prunet J, Schmidt BVKJ. Synthesis of PEG-Polycycloether Block Copolymers: Poloxamer Mimics Containing a Rigid Helical Block. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2310277. [PMID: 38520722 PMCID: PMC11165552 DOI: 10.1002/advs.202310277] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Revised: 02/23/2024] [Indexed: 03/25/2024]
Abstract
Poloxamers are amphiphilic block copolymers consisting of poly(ethylene glycol) (PEG) and poly(propylene glycol) segments. Their self-assembly and interfacial properties are tied to the relative hydrophilicity and hydrophobicity of each block and can therefore be adjusted by changing block lengths. Here, a series of PEG-polycycloether block copolymers is synthesized that have the same structure as a poloxamer, but they encompass a rigid polycyclic backbone as the hydrophobic block. A variety of polymer structures are synthesized, for example diblock or triblock architectures, with/without olefinic units, atactic or isotactic backbone, and different block lengths. Due to their amphiphilicity, self-assembly into spherical aggregates (diameters ranging from 64 to 132 nm) at low concentrations (critical aggregation concentration as low as 0.04 mg mL-1) is observed in water. Low surface tensions (as low as 26.7 mN m-1) are observed as well as the formation of stable high internal phase emulsions (HIPEs) irrespective of the oil/water ratio. This contrasts with the properties of the commonly used poloxamers P188 or P407 and illustrates the significance of the rigid polycycloether block. These new colloidal properties offer new prospects for applications in emulsion formulations for biomedicine, cosmetics, and the food industry.
Collapse
Affiliation(s)
| | - Joëlle Prunet
- School of Chemistry, Joseph Black BuildingUniversity of GlasgowGlasgowG12 8QQUK
| | | |
Collapse
|
22
|
Kovacevic B, Wagle SR, Ionescu CM, Foster T, Đanić M, Mikov M, Mooranian A, Al-Salami H. Biotechnological Effects of Advanced Smart-Bile Acid Cyclodextrin-Based Nanogels for Ear Delivery and Treatment of Hearing Loss. Adv Healthc Mater 2024; 13:e2303149. [PMID: 38514042 DOI: 10.1002/adhm.202303149] [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: 02/26/2024] [Indexed: 03/23/2024]
Abstract
Inner ear delivery requires safe and effective drug delivery vehicles incorporating high-viscosity formulations with permeation enhancers. This study designs novel thermoresponsive-smart polymer-bile acid and cyclodextrin-based nanogels for inner ear delivery. Nanogels are examined for their rheological and physical properties. The biocompatibility studies will be assessed on auditory and macrophage cell lines by investigating the impact of nanogels on cellular viability, mitochondrial respiration, glycolysis, intracellular oxidative stress, inflammatory profile, and macrophage polarization. Novel ther nanogels based on bile acid and beta-cyclodextrin show preserved porous nanogels' inner structure, exhibit non-Newtonian, shear-thinning fluid behavior, have fast gelation at 37 °C and minimal albumin adsorption on the surface. The nanogels have minimal impact on cellular viability, mitochondrial respiration, glycolysis, intracellular oxidative stress, and inflammatory profile of the auditory cell line House Ear Institute-Organ of Corti 1 after 24 h incubation. Nanogel exposure of 24 h to macrophage cell line RAW264.7 leads to decreased viability, mitochondrial dysfunction, and increased intracellular ROS and inflammatory cytokines. However, polarization changes from M2 anti-inflammatory to M1 pro-inflammatory macrophages are minimal, and inflammatory products of RAW264.7 macrophages do not overly disrupt the survivability of HEI-OC1 cells. Based on these results, thermoresponsive bile acid and cyclodextrin nanogels can be potential drug delivery vehicles for inner ear drug delivery.
Collapse
Affiliation(s)
- Bozica Kovacevic
- The Biotechnology and Drug Development Research Laboratory, Curtin Medical School & Curtin Health Innovation Research Institute, Curtin University, Bentley, Perth, WA 6102, Australia
| | - Susbin Raj Wagle
- The Biotechnology and Drug Development Research Laboratory, Curtin Medical School & Curtin Health Innovation Research Institute, Curtin University, Bentley, Perth, WA 6102, Australia
| | - Corina Mihaela Ionescu
- The Biotechnology and Drug Development Research Laboratory, Curtin Medical School & Curtin Health Innovation Research Institute, Curtin University, Bentley, Perth, WA 6102, Australia
| | - Thomas Foster
- The Biotechnology and Drug Development Research Laboratory, Curtin Medical School & Curtin Health Innovation Research Institute, Curtin University, Bentley, Perth, WA 6102, Australia
| | - Maja Đanić
- Department of Pharmacology, Toxicology and Clinical Pharmacology, Faculty of Medicine, University of Novi Sad, Novi Sad, 21101, Serbia
| | - Momir Mikov
- Department of Pharmacology, Toxicology and Clinical Pharmacology, Faculty of Medicine, University of Novi Sad, Novi Sad, 21101, Serbia
| | - Armin Mooranian
- The Biotechnology and Drug Development Research Laboratory, Curtin Medical School & Curtin Health Innovation Research Institute, Curtin University, Bentley, Perth, WA 6102, Australia
- School of Pharmacy, University of Otago, Dunedin, Otago, 9016, New Zealand
| | - Hani Al-Salami
- The Biotechnology and Drug Development Research Laboratory, Curtin Medical School & Curtin Health Innovation Research Institute, Curtin University, Bentley, Perth, WA 6102, Australia
- Medical School, University of Western Australia, Perth, 6009, Australia
| |
Collapse
|
23
|
KOLAY S, KAYAMAN APOHAN N, BABUÇ E, GÜN G. Effect of quince seed gum (QSG) on the performance of injectable hyaluronic acid hydrogels in terms of the rheological, morphological, and mechanical aspect. Turk J Chem 2024; 48:422-435. [PMID: 39050932 PMCID: PMC11265888 DOI: 10.55730/1300-0527.3669] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Revised: 06/14/2024] [Accepted: 05/29/2024] [Indexed: 07/27/2024] Open
Abstract
Injectable hydrogels play an important role in tissue engineering as a filling and repairing material. This study aimed to develop a new injectable hydrogel based on hyaluronic acid (HA) and quince seed gum (QSG) and investigate the effect of QSG on hydrogel performance. The amount of unreacted 1,4-Butanediol diglycidyl ether is maintained at an undetectable level for HA-QSG hydrogels. Amino acid analysis showed that the HA-QSG hydrogel had rich amino acid concentrations of leucine, arginine, and valine. After thermal sterilization, the elastic modulus of HA-QSG gels for dermal and intraarticular filler applications is 63 Pa and 92 Pa, respectively. Pore size was found below 200 μm and the dense homogeneous pore structure was observed.
Collapse
Affiliation(s)
- Serdar KOLAY
- Department of Chemistry, Institute of Pure and Applied Sciences, Marmara University, İstanbul,
Turkiye
- World Medicine, İstanbul,
Turkiye
| | | | | | | |
Collapse
|
24
|
Radeva L, Yordanov Y, Spassova I, Kovacheva D, Tibi IPE, Zaharieva MM, Kaleva M, Najdenski H, Petrov PD, Tzankova V, Yoncheva K. Incorporation of Resveratrol-Hydroxypropyl-β-Cyclodextrin Complexes into Hydrogel Formulation for Wound Treatment. Gels 2024; 10:346. [PMID: 38786263 PMCID: PMC11121020 DOI: 10.3390/gels10050346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2024] [Revised: 05/08/2024] [Accepted: 05/12/2024] [Indexed: 05/25/2024] Open
Abstract
Resveratrol could be applied in wound healing therapies because of its antioxidant, anti-inflammatory and antibacterial effects. However, the main limitation of resveratrol is its low aqueous solubility. In this study, resveratrol was included in hydroxypropyl-β-cyclodextrin complexes and further formulated in Pluronic F-127 hydrogels for wound treatment therapy. IR-spectroscopy and XRD analysis confirmed the successful incorporation of resveratrol into complexes. The wound-healing ability of these complexes was estimated by a scratch assay on fibroblasts, which showed a tendency for improvement of the effect of resveratrol after complexation. The antimicrobial activity of resveratrol in aqueous dispersion and in the complexes was evaluated on methicillin-resistant Staphylococcus aureus (MRSA), Escherichia coli, and Candida albicans strains. The results revealed a twofold decrease in the MIC and stronger inhibition of the metabolic activity of MRSA after treatment with resveratrol in the complexes compared to the suspended drug. Furthermore, the complexes were included in Pluronic hydrogel, which provided efficient drug release and appropriate viscoelastic properties. The formulated hydrogel showed excellent biocompatibility which was confirmed via skin irritation test on rabbits. In conclusion, Pluronic hydrogel containing resveratrol included in hydroxypropyl-β-cyclodextrin complexes is a promising topical formulation for further studies directed at wound therapy.
Collapse
Affiliation(s)
- Lyubomira Radeva
- Faculty of Pharmacy, Medical University of Sofia, 1000 Sofia, Bulgaria
| | - Yordan Yordanov
- Faculty of Pharmacy, Medical University of Sofia, 1000 Sofia, Bulgaria
| | - Ivanka Spassova
- Institute of General and Inorganic Chemistry, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
| | - Daniela Kovacheva
- Institute of General and Inorganic Chemistry, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
| | | | - Maya M. Zaharieva
- The Stephan Angeloff Institute of Microbiology, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
| | - Mila Kaleva
- The Stephan Angeloff Institute of Microbiology, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
| | - Hristo Najdenski
- The Stephan Angeloff Institute of Microbiology, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
| | - Petar D. Petrov
- Institute of Polymers, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
| | - Virginia Tzankova
- Faculty of Pharmacy, Medical University of Sofia, 1000 Sofia, Bulgaria
| | | |
Collapse
|
25
|
Li Q, Wang D, Xiao C, Wang H, Dong S. Advances in Hydrogels for Periodontitis Treatment. ACS Biomater Sci Eng 2024; 10:2742-2761. [PMID: 38639082 DOI: 10.1021/acsbiomaterials.4c00220] [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: 04/20/2024]
Abstract
Periodontitis is a common condition characterized by a bacterial infection and the disruption of the body's immune-inflammatory response, which causes damage to the teeth and supporting tissues and eventually results in tooth loss. Current therapy involves the systemic and local administration of antibiotics. However, the existing treatments cannot exert effective, sustained release and maintain an effective therapeutic concentration of the drug at the lesion site. Hydrogels are used to treat periodontitis due to their low cytotoxicity, exceptional water retention capability, and controlled drug release profile. Hydrogels can imitate the extracellular matrix of periodontal cells while offering suitable sites to load antibiotics. This article reviews the utilization of hydrogels for periodontitis therapy based on the pathogenesis and clinical manifestations of the disease. Additionally, the latest therapeutic strategies for smart hydrogels and the main techniques for hydrogel preparation have been discussed. The information will aid in designing and preparing future hydrogels for periodontitis treatment.
Collapse
Affiliation(s)
- Qiqi Li
- The First Outpatient Department, Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, School and Hospital of Stomatology, Jilin University, Changchun 130021, China
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
| | - Di Wang
- The First Outpatient Department, Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, School and Hospital of Stomatology, Jilin University, Changchun 130021, China
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
| | - Chunsheng Xiao
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
| | - Hao Wang
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
| | - Shujun Dong
- The First Outpatient Department, Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, School and Hospital of Stomatology, Jilin University, Changchun 130021, China
| |
Collapse
|
26
|
Ajvazi N, Milošev I, Cerc Korošec R, Rodič P, Božić B. Development and Characterization of Gelatin-Based Hydrogels Containing Triblock Copolymer and Phytic Acid. Gels 2024; 10:294. [PMID: 38786211 PMCID: PMC11121302 DOI: 10.3390/gels10050294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2024] [Revised: 04/19/2024] [Accepted: 04/22/2024] [Indexed: 05/25/2024] Open
Abstract
In recent research, significant interest has been directed towards gelatin-based hydrogels due to their affordable price, extensive availability, and biocompatibility, making them promising candidates for various biomedical applications. The development and characterization of novel hydrogels formed from varying ratios of gelatin, triblock copolymer Pluronic F-127, and phytic acid have been presented. Swelling properties were examined at different pH levels. The morphology of hydrogels and their thermal properties were analyzed using scanning electron microscopy (SEM), thermogravimetric analysis (TG), and differential scanning calorimetry (DSC). Fourier-transform infrared (FTIR) analysis of the hydrogels was also performed. The introduction of phytic acid in the hydrogel plays a crucial role in enhancing the intermolecular interactions within gelatin-based hydrogels, contributing to a more stable, elastic, and robust network structure.
Collapse
Affiliation(s)
- Njomza Ajvazi
- Jožef Stefan Institute, Jamova 39, 1000 Ljubljana, Slovenia; (N.A.); (P.R.); (B.B.)
| | - Ingrid Milošev
- Jožef Stefan Institute, Jamova 39, 1000 Ljubljana, Slovenia; (N.A.); (P.R.); (B.B.)
- Valdoltra Orthopaedic Hospital, Jadranska c. 31, 6280 Ankaran, Slovenia
| | - Romana Cerc Korošec
- Faculty of Chemistry and Chemical Technology, University of Ljubljana, Večna Pot 113, 1000 Ljubljana, Slovenia;
| | - Peter Rodič
- Jožef Stefan Institute, Jamova 39, 1000 Ljubljana, Slovenia; (N.A.); (P.R.); (B.B.)
| | - Bojan Božić
- Jožef Stefan Institute, Jamova 39, 1000 Ljubljana, Slovenia; (N.A.); (P.R.); (B.B.)
- Faculty of Biology, Institute of Physiology and Biochemistry “Ivan Djaja”, University of Belgrade, Studenski Trg 3, 11000 Beograd, Serbia
| |
Collapse
|
27
|
Thapa R, Pandey P, Parat MO, Gurung S, Parekh HS. Phase transforming in situ gels for sustained and controlled transmucosal drug delivery via the intravaginal route. Int J Pharm 2024; 655:124054. [PMID: 38548071 DOI: 10.1016/j.ijpharm.2024.124054] [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: 02/14/2024] [Revised: 03/24/2024] [Accepted: 03/25/2024] [Indexed: 04/01/2024]
Abstract
Direct, reliable, controlled, and sustained drug delivery to female reproductive tract (FRT) remains elusive, with conventional dosage forms falling way short of the mark, leading to premature leakage, erratic drug delivery, and loss of compliance. Historically, the intravaginal route remains underserved by the pharmaceutical sector. To comprehensively address this, we turned our focus to phase-transforming sol-gels, using poloxamers, a thermosensitive polymer and, doxycycline (as hyclate salt, DOXH) as our model agent given its potential use in sexually transmitted infections (STIs). We further enhanced mucoadhesiveness through screening of differing viscosity grade hydroxypropyl methyl celluloses (HPMCs). The optimised sol-gels remained gelled at body temperature (<37 °C) and were prepared in buffer aligned to vaginal cavity pH and osmolality. Lead formulations were progressed based on their ability to retain key rheological properties, and acidic pH in the presence of simulated vaginal fluid (SVF). From a shelf-life perspective, DOXH stability, gelation temperature (Tsol-gel), and pH to three months (2-8 °C) was attained. In summary, the meticulously engineered, phase-transforming sol-gels provided sustained mucoretention despite dilution by vaginal fluid, paving the way for localised antimicrobial drug delivery at concentrations that potentially far exceed the minimum inhibitory concentration (MIC) for target STI-causing bacteria of the FRT.
Collapse
Affiliation(s)
- Ritu Thapa
- School of Pharamcy, The University of Queensland, 20 Cornwall St, Woollongabba, QLD 4102, Australia
| | - Preeti Pandey
- School of Pharamcy, The University of Queensland, 20 Cornwall St, Woollongabba, QLD 4102, Australia.
| | - Marie-Odile Parat
- School of Pharamcy, The University of Queensland, 20 Cornwall St, Woollongabba, QLD 4102, Australia
| | - Shila Gurung
- School of Health and Allied Sciences, Pokhara University, Pokhara-30, Kaski 33700, Nepal
| | - Harendra S Parekh
- School of Pharamcy, The University of Queensland, 20 Cornwall St, Woollongabba, QLD 4102, Australia.
| |
Collapse
|
28
|
Dutta RS, Elhassan GO, Devi TB, Bhattacharjee B, Singh M, Jana BK, Sahu S, Mazumder B, Sahu RK, Khan J. Enhanced efficacy of β-carotene loaded solid lipid nanoparticles optimized and developed via central composite design on breast cancer cell lines. Heliyon 2024; 10:e28457. [PMID: 38586388 PMCID: PMC10998123 DOI: 10.1016/j.heliyon.2024.e28457] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Revised: 03/16/2024] [Accepted: 03/19/2024] [Indexed: 04/09/2024] Open
Abstract
β-carotene is obtained from both plants and animals and has been the subject of intense research because of its provitamin-A, antioxidant, and anticancer effects. Its limited absorption and oxidative degradation significantly reduce its antitumor efficacy when taken orally. In our study, we utilize a central composite design to develop "bio-safe and highly bio-compatible" solid lipid nanoparticles (SLNs) by using only the combination of palmitic acid and poloxamer-407, a block co-polymer as a surfactant. The current research aim to develop and characterize SLNs loaded with β-carotene to improve their bioavailability and therapeutic efficacy. In addition, the improved cytotoxicity of solid lipid nanoparticles loaded with β-carotene was screened in-vitro in human breast cancer cell lines (MCF-7). The nanoparticles exhibits good stability, as indicated by their mean zeta potential of -26.3 ± 1.3 mV. The particles demonstrated high drug loading and entrapment capabilities. The fabricated nanoparticle's prolonged release potential was shown by the in-vitro release kinetics, which showed a first-order release pattern that adhered to the Higuchi model and showed a slow, linear, and steady release over 48 h. Moreover, a diffusion-type release mechanism was used to liberate β-carotene from the nanoparticles. For six months, the nanoparticles also showed a notable degree of physical stability. Lastly, using the MTT assay, the anti-cancer properties of β-carotene-loaded solid lipid nanoparticles were compared with intact β-carotene on MCF-7 cell lines. The cytotoxicity tests have shown that the encapsulation of β-carotene in the lipid bilayers of the optimized formulation does not interfere with the anti-cancer activity of the drug. When compared to standard β-carotene, β-carotene loaded SLNs showed enhanced anticancer efficacy and it is a plausible therapeutic candidate for enhancing the solubility of water-insoluble and degradation-sensitive biotherapeutics like β-carotene.
Collapse
Affiliation(s)
- Rajat Subhra Dutta
- School of Pharmaceutical Sciences, Girijananda Chowdhury University-Tezpur Campus, 784501, Assam, India
- Department of Pharmaceutical Sciences, Dibrugarh University, Dibrugarh, 786004, Assam, India
| | - Gamal Osman Elhassan
- Department of Pharmaceutics, College of Pharmacy, Qassim University, Buraidah, 52571, Saudi Arabia
| | | | - Bedanta Bhattacharjee
- School of Pharmaceutical Sciences, Girijananda Chowdhury University-Tezpur Campus, 784501, Assam, India
| | - Mohini Singh
- Department of Pharmaceutical Sciences, Dibrugarh University, Dibrugarh, 786004, Assam, India
| | - Bani Kumar Jana
- Department of Pharmaceutical Sciences, Dibrugarh University, Dibrugarh, 786004, Assam, India
| | - Supriya Sahu
- School of Pharmaceutical Sciences, Girijananda Chowdhury University-Tezpur Campus, 784501, Assam, India
| | - Bhaskar Mazumder
- Department of Pharmaceutical Sciences, Dibrugarh University, Dibrugarh, 786004, Assam, India
| | - Ram Kumar Sahu
- Department of Pharmaceutical Sciences, Hemvati Nandan Bahuguna Garhwal University (A Central University), Chauras Campus, Tehri Garhwal, Uttarakhand, India
| | - Jiyauddin Khan
- School of Pharmacy, Management and Science University, 40100, Shah Alam, Selangor, Malaysia
| |
Collapse
|
29
|
Ruan M, Wang R, He Y. Novel Drug Delivery Systems for the Management of Fungal Keratitis. J Ocul Pharmacol Ther 2024; 40:160-172. [PMID: 38394222 DOI: 10.1089/jop.2023.0161] [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: 02/25/2024] Open
Abstract
Fungal keratitis (FK) is a dangerous corneal infection that is common in tropical and subtropical areas. Its incidence is extremely high, and ocular trauma and contact lenses can lead to FK, but its common treatment such as using topical antifungal eye drop instillation is often less effective because of several drawbacks of the drugs typically used, including limited ocular penetration, high frequency of dosing, poor biocompatibility, and the potential for severe drug reactions. Therefore, the development of novel drug delivery devices for the treatment of FK is urgent. The urgent need for novel drug delivery devices to treat FK has led to the development of several techniques, including nanoparticles (NPs), in situ forming hydrogels, contact lenses, and microneedles (MNs). However, it is important to note that the main mechanisms differ between these techniques. NPs can transport large amounts of drugs and be taken up by cells owing to their large surface area and small size. In situ forming hydrogels can significantly extend the residence time of drugs because of their strong adhesive properties. Contact lenses, with their comfortable shape and drug-carrying capacity, can also act as drug delivery devices. MNs can create channels in the cornea, bypassing its barrier and enhancing drug bioavailability. This article will go over novel medication delivery techniques for treating FK and make a conclusion about their advantages and limitations in anticipation to serve the best option for the individual therapy of FK.
Collapse
Affiliation(s)
- Mengyu Ruan
- Department of Ophthalmology, The Second Hospital of Jilin University, Changchun, China
| | - Ruiqing Wang
- Department of Ophthalmology, The Second Hospital of Jilin University, Changchun, China
| | - Yuxi He
- Department of Ophthalmology, The Second Hospital of Jilin University, Changchun, China
| |
Collapse
|
30
|
Yang Y, Nan W, Zhang R, Shen S, Wu M, Zhong S, Zhang Y, Cui X. Fabrication of carboxymethyl cellulose-based thermo-sensitive hydrogels and inhibition of corneal neovascularization. Int J Biol Macromol 2024; 261:129933. [PMID: 38309411 DOI: 10.1016/j.ijbiomac.2024.129933] [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: 11/06/2023] [Revised: 01/19/2024] [Accepted: 01/31/2024] [Indexed: 02/05/2024]
Abstract
Corneal neovascularization (CNV) is a common multifactorial sequela of anterior corneal segment inflammation, which could lead to visual impairment and even blindness. The main treatments available are surgical sutures and invasive drug injections, which could cause serious ocular complications. To solve this problem, a thermo-sensitive drug-loaded hydrogel with high transparency was prepared in this study, which could achieve the sustained-release of drugs without affecting normal vision. In briefly, the thermo-sensitive hydrogel (PFNOCMC) was prepared from oxidized carboxymethyl cellulose (OCMC) and aminated poloxamer 407 (PF127-NH2). The results proved the PFNOCMC hydrogels possess high transparency, suitable gel temperature and time. In the CNV model, the PFNOCMC hydrogel loading bone morphogenetic protein 4 (BMP4) showed significant inhibition of CNV, this is due to the hydrogel allowed the drug to stay longer in the target area. The animal experiments on the ocular surface were carried out, which proved the hydrogel had excellent biocompatibility, and could realize the sustained-release of loaded drugs, and had a significant inhibitory effect on the neovascularization after ocular surface surgery. In conclusion, PFNOCMC hydrogels have great potential as sustained-release drug carriers in the biomedical field and provide a new minimally invasive option for the treatment of neovascular ocular diseases.
Collapse
Affiliation(s)
- Yongyan Yang
- College of Chemistry, Jilin University, Changchun 130012, PR China
| | - Weijin Nan
- Department of Ophthalmology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200080, PR China
| | - Ruiting Zhang
- College of Chemistry, Jilin University, Changchun 130012, PR China
| | - Sitong Shen
- Department of Ophthalmology, The Second Hospital of Jilin University, Changchun 130041, PR China
| | - Meiliang Wu
- Department of Ophthalmology, The Second Hospital of Jilin University, Changchun 130041, PR China
| | - Shuangling Zhong
- College of Resources and Environment, Jilin Agricultural University, Changchun 130118, PR China
| | - Yan Zhang
- Department of Ophthalmology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200080, PR China.
| | - Xuejun Cui
- College of Chemistry, Jilin University, Changchun 130012, PR China; Weihai Institute for Bionics-Jilin University, Weihai 264400, PR China.
| |
Collapse
|
31
|
Ganguly R, Kumar S, Soumya M, Khare A, Bhainsa KC, Aswal VK, Kohlbrecher J. Structural and therapeutic properties of salicylic acid-solubilized Pluronic solutions and hydrogels. SOFT MATTER 2024; 20:2075-2087. [PMID: 38345756 DOI: 10.1039/d4sm00079j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/29/2024]
Abstract
Salicylic acid (SA) finds extensive applications in the treatment of rheumatic and skin diseases because of its analgesic, anti-inflammatory and exfoliating properties. As it is lipophilic in nature, there is a need for appropriate delivery systems to harness these properties for different applications. Herein, we examined the suitability of Pluronic P123/F127 micellar systems as delivery media by investigating the structural, flow and antimicrobial properties of P123/F127-SA solutions and hydrogels using DLS, SANS, rheological and zone inhibition measurement techniques. SA modulates the aggregation characteristics of these surfactant systems and brings about spherical-to-worm-like micelle-to-vesicular structural transitions in the hydrophobic Pluronic P123 system, a spherical-to-worm-like micellar transition in the mixed P123/F127 system and an onset of inter-micellar attraction in the hydrophilic Pluronic F127 system. SA-solubilized systems of both hydrophobic and hydrophilic Pluronics inhibit the growth of Gram-positive and Gram-negative bacteria with comparable MIC values. This suggests that the interaction of SA molecules with the bacterial cell membrane remains unobstructed upon encapsulation in Pluronic micelles. F127 hydrogel-based SA formulations with rheological properties suitable for topical applications and up to 15% SA loading were prepared. These will be useful SA ointments as F127 is an FDA-approved excipient for topical drug delivery applications. The results indicate that Pluronics remain effective as delivery agents for SA and exhibit interesting structural polymorphism upon its solubilization.
Collapse
Affiliation(s)
- R Ganguly
- Chemistry Division, Bhabha Atomic Research Centre, Mumbai-400085, India.
| | - S Kumar
- Solid State Physics Division, Bhabha Atomic Research Centre, Mumbai-400085, India
| | - M Soumya
- Nuclear Agriculture & Biotech Division, Bhabha Atomic Research Centre, Mumbai-400085, India
| | - A Khare
- Radiation Biology & Health Sciences Division, Bhabha Atomic Research Centre, Mumbai-400085, India
| | - K C Bhainsa
- Nuclear Agriculture & Biotech Division, Bhabha Atomic Research Centre, Mumbai-400085, India
| | - V K Aswal
- Solid State Physics Division, Bhabha Atomic Research Centre, Mumbai-400085, India
| | | |
Collapse
|
32
|
Zhang C, Wang J, Wu H, Fan W, Li S, Wei D, Song Z, Tao Y. Hydrogel-Based Therapy for Age-Related Macular Degeneration: Current Innovations, Impediments, and Future Perspectives. Gels 2024; 10:158. [PMID: 38534576 DOI: 10.3390/gels10030158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2023] [Revised: 01/20/2024] [Accepted: 01/23/2024] [Indexed: 03/28/2024] Open
Abstract
Age-related macular degeneration (AMD) is an ocular disease that leads to progressive photoreceptor death and visual impairment. Currently, the most common therapeutic strategy is to deliver anti-vascular endothelial growth factor (anti-VEGF) agents into the eyes of patients with wet AMD. However, this treatment method requires repeated injections, which potentially results in surgical complications and unwanted side effects for patients. An effective therapeutic approach for dry AMD also remains elusive. Therefore, there is a surge of enthusiasm for the developing the biodegradable drug delivery systems with sustained release capability and develop a promising therapeutic strategy. Notably, the strides made in hydrogels which possess intricate three-dimensional polymer networks have profoundly facilitated the treatments of AMD. Researchers have established diverse hydrogel-based delivery systems with marvelous biocompatibility and efficacy. Advantageously, these hydrogel-based transplantation therapies provide promising opportunities for vision restoration. Herein, we provide an overview of the properties and potential of hydrogels for ocular delivery. We introduce recent advances in the utilization of hydrogels for the delivery of anti-VEGF and in cell implantation. Further refinements of these findings would lay the basis for developing more rational and curative therapies for AMD.
Collapse
Affiliation(s)
- Chengzhi Zhang
- Department of Ophthalmology, Henan Eye Institute, Henan Eye Hospital, Henan Provincial People's Hospital (People's Hospital of Zheng Zhou University), Zhengzhou 450003, China
- College of Medicine, Zhengzhou University, Zhengzhou 450001, China
| | - Jiale Wang
- Department of Ophthalmology, Henan Eye Institute, Henan Eye Hospital, Henan Provincial People's Hospital (People's Hospital of Zheng Zhou University), Zhengzhou 450003, China
- College of Medicine, Zhengzhou University, Zhengzhou 450001, China
| | - Hao Wu
- Department of Ophthalmology, Henan Eye Institute, Henan Eye Hospital, Henan Provincial People's Hospital (People's Hospital of Zheng Zhou University), Zhengzhou 450003, China
- College of Medicine, Zhengzhou University, Zhengzhou 450001, China
| | - Wenhui Fan
- Department of Ophthalmology, Henan Eye Institute, Henan Eye Hospital, Henan Provincial People's Hospital (People's Hospital of Zheng Zhou University), Zhengzhou 450003, China
- College of Medicine, Zhengzhou University, Zhengzhou 450001, China
| | - Siyu Li
- Department of Ophthalmology, Henan Eye Institute, Henan Eye Hospital, Henan Provincial People's Hospital (People's Hospital of Zheng Zhou University), Zhengzhou 450003, China
- College of Medicine, Zhengzhou University, Zhengzhou 450001, China
| | - Dong Wei
- Department of Ophthalmology, Henan Eye Institute, Henan Eye Hospital, Henan Provincial People's Hospital (People's Hospital of Zheng Zhou University), Zhengzhou 450003, China
- College of Medicine, Zhengzhou University, Zhengzhou 450001, China
| | - Zongming Song
- Department of Ophthalmology, Henan Eye Institute, Henan Eye Hospital, Henan Provincial People's Hospital (People's Hospital of Zheng Zhou University), Zhengzhou 450003, China
| | - Ye Tao
- Department of Ophthalmology, Henan Eye Institute, Henan Eye Hospital, Henan Provincial People's Hospital (People's Hospital of Zheng Zhou University), Zhengzhou 450003, China
- College of Medicine, Zhengzhou University, Zhengzhou 450001, China
| |
Collapse
|
33
|
Chen X, Song H, Song K, Zhang Y, Wang J, Hong J, Xie Q, Zhao J, Liu M, Wang X. Temperature-sensitive hydrogel releasing pectolinarin facilitate scarless wound healing. J Cell Mol Med 2024; 28:e18130. [PMID: 38332511 PMCID: PMC10853586 DOI: 10.1111/jcmm.18130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Revised: 11/28/2023] [Accepted: 12/27/2023] [Indexed: 02/10/2024] Open
Abstract
The dressing that promotes scarless healing is essential for both normal function and aesthetics after a wound. With a deeper understanding of the mechanisms involved in scar formation during the wound healing process, the ideal dressing becomes clearer and more promising. For instance, the yes-associated transcriptional regulator (YAP) has been extensively studied as a key gene involved in regulating scar formation. However, there has been limited attention given to pectolinarin, a natural flavonoid that may exhibit strong binding affinity to YAP, in the context of scarless healing. In this study, we successfully developed a temperature-sensitive Pluronic@F-127 hydrogel as a platform for delivering pectolinarin to promote scarless wound healing. The bioactive pectolinarin was released from the hydrogel, effectively enhancing endothelial cell migration, proliferation and the expression of angiogenesis-related genes. Additionally, a concentration of 20 μg/mL of pectolinarin demonstrated remarkable antioxidant ability, capable of counteracting the detrimental effects of reactive oxygen species (ROS). Our results from rat wound healing models demonstrated that the hydrogel accelerated wound healing, promoting re-epithelialization and facilitating skin appendage regeneration. Furthermore, we discovered that a concentration of 50 μg/mL of pectolinarin incorporated to the hydrogel exhibited the most favourable outcomes in terms of promoting wound healing and minimizing scar formation. Overall, our study highlights that the significant potential of locally released pectolinarin might substantially inhibit YAP and promoting scarless wound healing.
Collapse
Affiliation(s)
- Xiaohang Chen
- Shanxi Medical University School and Hospital of StomatologyTaiyuanChina
- Shanxi Province Key Laboratory of Oral Diseases Prevention and New MaterialsTaiyuanChina
| | - Haoyue Song
- Shanxi Medical University School and Hospital of StomatologyTaiyuanChina
- Shanxi Province Key Laboratory of Oral Diseases Prevention and New MaterialsTaiyuanChina
| | - Kun Song
- Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital, Laboratory of Facial Plastic and ReconstructionFujian Medical UniversityFuzhouChina
| | - Yuan Zhang
- Shanxi Medical University School and Hospital of StomatologyTaiyuanChina
- Shanxi Province Key Laboratory of Oral Diseases Prevention and New MaterialsTaiyuanChina
| | - Jia Wang
- Shanxi Medical University School and Hospital of StomatologyTaiyuanChina
- Shanxi Province Key Laboratory of Oral Diseases Prevention and New MaterialsTaiyuanChina
| | - Jinjia Hong
- Shanxi Medical University School and Hospital of StomatologyTaiyuanChina
- Shanxi Province Key Laboratory of Oral Diseases Prevention and New MaterialsTaiyuanChina
| | - Qingpeng Xie
- Shanxi Medical University School and Hospital of StomatologyTaiyuanChina
- Shanxi Province Key Laboratory of Oral Diseases Prevention and New MaterialsTaiyuanChina
| | - Jing Zhao
- Shanxi Medical University School and Hospital of StomatologyTaiyuanChina
- Shanxi Province Key Laboratory of Oral Diseases Prevention and New MaterialsTaiyuanChina
| | - Meixian Liu
- Shanxi Medical University School and Hospital of StomatologyTaiyuanChina
- Shanxi Province Key Laboratory of Oral Diseases Prevention and New MaterialsTaiyuanChina
| | - Xing Wang
- Shanxi Medical University School and Hospital of StomatologyTaiyuanChina
- Shanxi Province Key Laboratory of Oral Diseases Prevention and New MaterialsTaiyuanChina
| |
Collapse
|
34
|
Slavkova M, Lazov C, Spassova I, Kovacheva D, Tibi IPE, Stefanova D, Tzankova V, Petrov PD, Yoncheva K. Formulation of Budesonide-Loaded Polymeric Nanoparticles into Hydrogels for Local Therapy of Atopic Dermatitis. Gels 2024; 10:79. [PMID: 38275852 PMCID: PMC10815368 DOI: 10.3390/gels10010079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2023] [Revised: 01/17/2024] [Accepted: 01/18/2024] [Indexed: 01/27/2024] Open
Abstract
Budesonide is a mineral corticoid applied in the local therapy of pediatric atopic dermatitis. Unfortunately, its dermal administration is hindered by the concomitant adverse effects and its physicochemical properties. The characteristic pH change in the atopic lesions can be utilized for the preparation of a pH-sensitive nanocarrier. In this view, the formulation of Eudragit L 100 nanoparticles as a budesonide delivery platform could provide more efficient release to the desired site, improve its penetration, and subsequently lower the undesired effects. In this study, budesonide-loaded Eudragit L100 nanoparticles were prepared via the nanoprecipitation method (mean diameter 57 nm, -31.2 mV, and approx. 90% encapsulation efficiency). Their safety was proven by cytotoxicity assays on the HaCaT keratinocyte cell line. Further, the drug-loaded nanoparticles were incorporated into two types of hydrogels based on methylcellulose or Pluronic F127. The formulated hydrogels were characterized with respect to their pH, occlusion, rheology, penetration, spreadability, and drug release. In conclusion, the developed hydrogels containing budesonide-loaded nanoparticles showed promising potential for the pediatric treatment of atopic dermatitis.
Collapse
Affiliation(s)
- Marta Slavkova
- Faculty of Pharmacy, Medical University of Sofia, 1000 Sofia, Bulgaria (I.P.-E.T.); (D.S.); (V.T.)
| | - Christophor Lazov
- Faculty of Pharmacy, Medical University of Sofia, 1000 Sofia, Bulgaria (I.P.-E.T.); (D.S.); (V.T.)
| | - Ivanka Spassova
- Institute of General and Inorganic Chemistry, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria; (I.S.); (D.K.)
| | - Daniela Kovacheva
- Institute of General and Inorganic Chemistry, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria; (I.S.); (D.K.)
| | - Ivanka Pencheva-El Tibi
- Faculty of Pharmacy, Medical University of Sofia, 1000 Sofia, Bulgaria (I.P.-E.T.); (D.S.); (V.T.)
| | - Denitsa Stefanova
- Faculty of Pharmacy, Medical University of Sofia, 1000 Sofia, Bulgaria (I.P.-E.T.); (D.S.); (V.T.)
| | - Virginia Tzankova
- Faculty of Pharmacy, Medical University of Sofia, 1000 Sofia, Bulgaria (I.P.-E.T.); (D.S.); (V.T.)
| | - Petar D. Petrov
- Institute of Polymers, Bulgarian Academy of Sciences, Akad. G. Bonchev Str. 103A, 1113 Sofia, Bulgaria;
| | - Krassimira Yoncheva
- Faculty of Pharmacy, Medical University of Sofia, 1000 Sofia, Bulgaria (I.P.-E.T.); (D.S.); (V.T.)
| |
Collapse
|
35
|
Yadav D, Sharma PK, Malviya R, Mishra PS, Surendra AV, Rao GSNK, Rani BR. Stimuli-responsive Biomaterials for Tissue Engineering Applications. Curr Pharm Biotechnol 2024; 25:981-999. [PMID: 37594093 DOI: 10.2174/1389201024666230818121821] [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: 01/24/2023] [Revised: 06/14/2023] [Accepted: 07/12/2023] [Indexed: 08/19/2023]
Abstract
The use of ''smart materials,'' or ''stimulus responsive'' materials, has proven useful in a variety of fields, including tissue engineering and medication delivery. Many factors, including temperature, pH, redox state, light, and magnetic fields, are being studied for their potential to affect a material's properties, interactions, structure, and/or dimensions. New tissue engineering and drug delivery methods are made possible by the ability of living systems to respond to both external stimuli and their own internal signals) for example, materials composed of stimuliresponsive polymers that self assemble or undergo phase transitions or morphology transformation. The researcher examines the potential of smart materials as controlled drug release vehicles in tissue engineering, aiming to enable the localized regeneration of injured tissue by delivering precisely dosed drugs at precisely timed intervals.
Collapse
Affiliation(s)
- Deepika Yadav
- Department of Pharmacy, School of Medical and Allied Sciences, Galgotias University Greater Noida, Uttar Pradesh, India
| | - Pramod Kumar Sharma
- Department of Pharmacy, School of Medical and Allied Sciences, Galgotias University Greater Noida, Uttar Pradesh, India
| | - Rishabha Malviya
- Department of Pharmacy, School of Medical and Allied Sciences, Galgotias University Greater Noida, Uttar Pradesh, India
| | - Prem Shankar Mishra
- Department of Pharmacy, School of Medical and Allied Sciences, Galgotias University Greater Noida, Uttar Pradesh, India
| | | | - G S N Koteswara Rao
- Shobhaben Pratapbhai Patel School of Pharmacy, NMIMS Deemed University, Mumbai, India
| | - Budha Roja Rani
- Institute of Pharmaceutical Technology, Sri Padmavathi Mahila Visvavidyalayam, Tirupati, A.P., India
| |
Collapse
|
36
|
Monteiro APF, Pérez-Jiménez A, Spitzlei C, Caucheteux J, Alves VD, Lambert S, Grandfils C. Interpenetrating alginate network as drug delivery matrix: Effects on protein stability and release. J Biomed Mater Res B Appl Biomater 2024; 112:e35354. [PMID: 37986690 DOI: 10.1002/jbm.b.35354] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Revised: 09/26/2023] [Accepted: 10/30/2023] [Indexed: 11/22/2023]
Abstract
The study investigates the rheological properties and protein release capacity of a uniform hydrogel composed of sodium alginate (SA) and poloxamer (P407). The hydrogel is prepared through the sustained release of calcium ions, resulting in a reinforced and homogeneous interpenetrating networks (IPNs) of SA and P407 polymeric chains. By adjusting the amount of crosslink agent, the hydrogel exhibites an adjustable dissolution ratio and adaptable gelling time. Moreover, the composite showed a well-structured network and superior mechanical strength, enabling the sustained release of both calcium ions and Soybean Trypsin Inhibitor (STI) protein, a model of Bone Morphogenic Protein (BMP). Importantly, the protein release kinetic can be tuned based on the SA content in the polymeric blend, highlighting the versatile nature of this hydrogel for drug delivery purposes.
Collapse
Affiliation(s)
- Ana P F Monteiro
- Interfaculty Research Center of Biomaterials (CEIB), University of Liège, Liège, Belgium
- Department of Chemical Engineering - Nanomaterials, Catalysis and Electrochemistry (NCE), University of Liège, Liège, Belgium
| | - Aurora Pérez-Jiménez
- Interfaculty Research Center of Biomaterials (CEIB), University of Liège, Liège, Belgium
| | - Claire Spitzlei
- Interfaculty Research Center of Biomaterials (CEIB), University of Liège, Liège, Belgium
| | - Joachim Caucheteux
- Interfaculty Research Center of Biomaterials (CEIB), University of Liège, Liège, Belgium
| | - Vitor Delgado Alves
- LEAF-Linking Landscape Environment Agriculture and Food Research Center, Associate Laboratory TERRA, Instituto Superior de Agronomia, University of Lisbon, Lisbon, Portugal
| | - Stéphanie Lambert
- Department of Chemical Engineering - Nanomaterials, Catalysis and Electrochemistry (NCE), University of Liège, Liège, Belgium
| | - Christian Grandfils
- Interfaculty Research Center of Biomaterials (CEIB), University of Liège, Liège, Belgium
| |
Collapse
|
37
|
Wu TY, Huang CC, Tsai HC, Lin TK, Chen PY, Darge HF, Hong ZX, Harn HJ, Lin SZ, Lai JY, Chen YS. Mucin-mediated mucosal retention via end-terminal modified Pluronic F127-based hydrogel to increase drug accumulation in the lungs. BIOMATERIALS ADVANCES 2024; 156:213722. [PMID: 38101076 DOI: 10.1016/j.bioadv.2023.213722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Revised: 11/29/2023] [Accepted: 12/02/2023] [Indexed: 12/17/2023]
Abstract
Noninvasive lung drug delivery is critical for treating respiratory diseases. Pluronic-based copolymers have been used as multifunctional materials for medical and biological applications. However, the Pluronic F127-based hydrogel is rapidly degraded, adversely affecting the mechanical stability for prolonged drug release. Therefore, this study designed two thermosensitive copolymers by modifying the Pluronic F127 terminal groups with carboxyl (ADF127) or amine groups (EDF127) to improve the viscosity and storage modulus of drug formulations. β-alanine and ethylenediamine were conjugated at the terminal of Pluronic F127 using a two-step acetylation process, and the final copolymers were characterized using 1H nuclear magnetic resonance (1H NMR) and Fourier-transform infrared spectra. According to the 1H NMR spectra, Pluronic F127 was functionalized to form ADF127 and EDF127 with 85 % and 71 % functionalization degrees, respectively. Rheological studies revealed that the ADF127 (15 wt%) and EDF127 (15 wt%) viscosities increased from 1480 Pa.s (Pluronic F127) to 1700 Pa.s and 1800 Pa.s, respectively. Furthermore, the elastic modulus of ADF127 and EDF127 increased, compared with that of native Pluronic F127 with the addition of 5 % mucin, particularly for ADF127, thereby signifying the stronger adhesive nature of ADF127 and EDF127 with mucin. Additionally, ADF127 and EDF127 exhibited a decreased gelation temperature, decreasing from 33 °C (Pluronic F127 at 15 wt%) to 24 °C. Notably, the in vitro ADF127 and EDF127 drug release was prolonged (95 %; 48 h) by the hydrogel encapsulation of the liposome-Bdph combined with mucin, and the intermolecular hydrogen bonding between the mucin and the hydrogel increased the retention time and stiffness of the hydrogels. Furthermore, ADF127 and EDF127 incubated with NIH-3T3 cells exhibited biocompatibility within 2 mg/mL, compared with Pluronic F127. The nasal administration method was used to examine the biodistribution of the modified hydrogel carrying liposomes or exosomes with fluorescence using the IVIS system. Drug accumulation in the lungs decreased in the following order: ADF127 > EDF127 > liposomes or exosomes alone. These results indicated that the carboxyl group-modified Pluronic F127 enabled well-distributed drug accumulation in the lungs, which is beneficial for intranasal administration routes in treating diseases such as lung fibrosis.
Collapse
Affiliation(s)
- Tsung-Yun Wu
- Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology, Taipei 106, Taiwan, ROC
| | - Chun-Chiang Huang
- Taiwan Instrument Research Institute, National Applied Research Laboratories, Hsinchu 302, Taiwan, ROC
| | - Hsieh-Chih Tsai
- Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology, Taipei 106, Taiwan, ROC; Advanced Membrane Materials Center, National Taiwan University of Science and Technology, Taipei 106, Taiwan, ROC; R&D Center for Membrane Technology, Chung Yuan Christian University, Chungli, Taoyuan 320, Taiwan, ROC.
| | - Tzu-Kai Lin
- Department of Dermatology, Skin Institute, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien 970, Taiwan, ROC; Department of Dermatology, School of Medicine, Tzu Chi University, Hualien 970, Taiwan, ROC
| | - Pei-Yu Chen
- Bioinnovation Center, Buddhist Tzu Chi Medical Foundation, Hualien 970, Taiwan, ROC
| | - Haile Fentahun Darge
- Centre for Ocular Research & Education (CORE), School of Optometry and Vision Science, University of Waterloo, 200 University Avenue West, Waterloo, ON N2L 3G1, Canada
| | - Zhen-Xiang Hong
- Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology, Taipei 106, Taiwan, ROC
| | - Horng-Jyh Harn
- Bioinnovation Center, Buddhist Tzu Chi Medical Foundation, Hualien 970, Taiwan, ROC; Centre for Ocular Research & Education (CORE), School of Optometry and Vision Science, University of Waterloo, 200 University Avenue West, Waterloo, ON N2L 3G1, Canada; Department of Pathology, Hualien Tzu Chi Hospital, Tzu Chi University, Buddhist Tzu Chi Medical Foundation, Hualien 970, Taiwan, ROC
| | - Shinn-Zong Lin
- Bioinnovation Center, Buddhist Tzu Chi Medical Foundation, Hualien 970, Taiwan, ROC; Department of Neurosurgery, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien 970, Taiwan, ROC
| | - Juin-Yih Lai
- Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology, Taipei 106, Taiwan, ROC; Advanced Membrane Materials Center, National Taiwan University of Science and Technology, Taipei 106, Taiwan, ROC; R&D Center for Membrane Technology, Chung Yuan Christian University, Chungli, Taoyuan 320, Taiwan, ROC; Department of Chemical Engineering and Materials Science, Yuan Ze University, Chungli, Taoyuan 320, Taiwan, ROC
| | - Yu-Shuan Chen
- Bioinnovation Center, Buddhist Tzu Chi Medical Foundation, Hualien 970, Taiwan, ROC; Department of Medical Research, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien 970, Taiwan, ROC; Tzu Chi University of Science and Technology, Hualien 970, Taiwan, ROC.
| |
Collapse
|
38
|
Ding Y, Dong Y, Ma M, Luo L, Wang X, Fang B, Li Y, Liu L, Ren F. CO 2 electrocatalytic reduction to ethylene and its application outlook in food science. iScience 2023; 26:108434. [PMID: 38125022 PMCID: PMC10730755 DOI: 10.1016/j.isci.2023.108434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2023] Open
Abstract
The efficient conversion of CO2 is considered to be an important step toward carbon emissions peak and carbon neutrality. Presently, great efforts have been devoted to the study of efficient nanocatalysts, electrolytic cell, and electrolytes to achieve high reactivity and selectivity in the electrochemical reduction of CO2 to mono- and multi-carbon (C2+) compounds. However, there are very few reviews focusing on highly reactive and selective ethylene production and application in the field of electrochemical carbon dioxide reduction reaction (CO2RR). Ethylene is a class of multi-carbon compounds that are widely applied in industrial, ecological, and agricultural fields. This review focuses especially on the convertibility of CO2 reduction to generate ethylene technology in practical applications and provides a detailed summary of the latest technologies for the efficient production of ethylene by CO2RR and suggests the potential application of CO2RR systems in food science to further expand the application market of CO2RR for ethylene production.
Collapse
Affiliation(s)
- Yuxuan Ding
- Department of Nutrition and Health, China Agricultural University, Beijing 100193, China
| | - Yixuan Dong
- Department of Nutrition and Health, China Agricultural University, Beijing 100193, China
| | - Min Ma
- Department of Nutrition and Health, China Agricultural University, Beijing 100193, China
| | - Lili Luo
- Department of Nutrition and Health, China Agricultural University, Beijing 100193, China
| | - Xifan Wang
- Department of Nutrition and Health, China Agricultural University, Beijing 100193, China
| | - Bing Fang
- Department of Nutrition and Health, China Agricultural University, Beijing 100193, China
| | - Yixuan Li
- Department of Nutrition and Health, China Agricultural University, Beijing 100193, China
| | - Libing Liu
- Department of Nutrition and Health, China Agricultural University, Beijing 100193, China
| | - Fazheng Ren
- Department of Nutrition and Health, China Agricultural University, Beijing 100193, China
| |
Collapse
|
39
|
Almutairy BK, Khafagy ES, Abu Lila AS. Development of Carvedilol Nanoformulation-Loaded Poloxamer-Based In Situ Gel for the Management of Glaucoma. Gels 2023; 9:952. [PMID: 38131938 PMCID: PMC10742441 DOI: 10.3390/gels9120952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Revised: 11/24/2023] [Accepted: 11/30/2023] [Indexed: 12/23/2023] Open
Abstract
The objective of the current study was to fabricate a thermosensitive in situ gelling system for the ocular delivery of carvedilol-loaded spanlastics (CRV-SPLs). In situ gel formulations were prepared using poloxamer analogs by a cold method and was further laden with carvedilol-loaded spanlastics to boost the precorneal retention of the drug. The gelation capacity, rheological characteristics, muco-adhesion force and in vitro release of various in situ gel formulations (CS-ISGs) were studied. The optimized formula (F2) obtained at 22% w/v poloxamer 407 and 5% w/v poloxamer 188 was found to have good gelation capacity at body temperature with acceptable muco-adhesion properties, appropriate viscosity at 25 °C that would ease its ocular application, and relatively higher viscosity at 37 °C that promoted prolonged ocular residence of the formulation post eye instillation and displayed a sustained in vitro drug release pattern. Ex vivo transcorneal penetration studies through excised rabbit cornea revealed that F2 elicited a remarkable (p ˂ 0.05) improvement in CRV apparent permeation coefficient (Papp = 6.39 × 10-6 cm/s) compared to plain carvedilol-loaded in situ gel (CRV-ISG; Papp = 2.67 × 10-6 cm/s). Most importantly, in normal rabbits, the optimized formula (F2) resulted in a sustained intraocular pressure reduction and a significant enhancement in the ocular bioavailability of carvedilol, as manifested by a 2-fold increase in the AUC0-6h of CRV in the aqueous humor, compared to plain CRV-ISG formulation. To sum up, the developed thermosensitive in situ gelling system might represent a plausible carrier for ophthalmic drug delivery for better management of glaucoma.
Collapse
Affiliation(s)
- Bjad K. Almutairy
- Department of Pharmaceutics, College of Pharmacy, Prince Sattam Bin Abdulaziz University, Al-Kharj 11942, Saudi Arabia;
| | - El-Sayed Khafagy
- Department of Pharmaceutics, College of Pharmacy, Prince Sattam Bin Abdulaziz University, Al-Kharj 11942, Saudi Arabia;
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Suez Canal University, Ismailia 41522, Egypt
| | - Amr Selim Abu Lila
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Zagazig University, Zagazig 44519, Egypt;
- Department of Pharmaceutics, College of Pharmacy, University of Hail, Hail 81442, Saudi Arabia
- Medical and Diagnostic Research Center, University of Hail, Hail 81442, Saudi Arabia
| |
Collapse
|
40
|
Hu Z, Zhou Y, Wu H, Hong G, Chen M, Jin W, Lu W, Zuo M, Xie Z, Shi J. An injectable photopolymerizable chitosan hydrogel doped anti-inflammatory peptide for long-lasting periodontal pocket delivery and periodontitis therapy. Int J Biol Macromol 2023; 252:126060. [PMID: 37524282 DOI: 10.1016/j.ijbiomac.2023.126060] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Revised: 07/27/2023] [Accepted: 07/28/2023] [Indexed: 08/02/2023]
Abstract
Periodontitis is a common chronic inflammatory disease caused by plaque that leads to alveolar bone resorption and tooth loss. Inflammation control and achieving better tissue repair are the key to periodontitis treatment. In this study, human β-Defensin 1 short motif Pep-B with inflammation inhibition and differentiation regulation properties, is firstly used in the treatment of periodontitis, and an injectable photopolymerizable Pep-B/chitosan methacryloyl composite hydrogel (CMSA/Pep-B) is constructed. We confirm that Pep-B improves inflammation, and restores osteogenic behavior and function of injured stem cells. CMSA/Pep-B has good injectability, fluidity and photopolymerizability, and can sustainably release Pep-B to maintain drug concentration in periodontal pockets. Furthermore, animal experiments showed that CMSA/Pep-B significantly ameliorated the inflammation of the periodontium and reduced the alveolar bone loss by decreasing inflammatory infiltration, osteoclast formation and collagen destruction. In conclusion, CMSA/Pep-B is envisaged to be a novel bioactive material or therapeutic drug for treating periodontitis.
Collapse
Affiliation(s)
- Zihe Hu
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Engineering Research Center of Oral Biomaterials and Devices of Zhejiang Province, Hangzhou 310000, China.
| | - Yanyan Zhou
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Engineering Research Center of Oral Biomaterials and Devices of Zhejiang Province, Hangzhou 310000, China.
| | - Haiyan Wu
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Engineering Research Center of Oral Biomaterials and Devices of Zhejiang Province, Hangzhou 310000, China.
| | - Gaoying Hong
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Engineering Research Center of Oral Biomaterials and Devices of Zhejiang Province, Hangzhou 310000, China.
| | - Mumian Chen
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Engineering Research Center of Oral Biomaterials and Devices of Zhejiang Province, Hangzhou 310000, China.
| | - Wenjing Jin
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Engineering Research Center of Oral Biomaterials and Devices of Zhejiang Province, Hangzhou 310000, China.
| | - Weiying Lu
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Engineering Research Center of Oral Biomaterials and Devices of Zhejiang Province, Hangzhou 310000, China.
| | - Minghao Zuo
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Engineering Research Center of Oral Biomaterials and Devices of Zhejiang Province, Hangzhou 310000, China.
| | - Zhijian Xie
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Engineering Research Center of Oral Biomaterials and Devices of Zhejiang Province, Hangzhou 310000, China.
| | - Jue Shi
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Engineering Research Center of Oral Biomaterials and Devices of Zhejiang Province, Hangzhou 310000, China.
| |
Collapse
|
41
|
Chen LC, Lin SY, Cheng WJ, Sheu MT, Chung CY, Hsu CH, Lin HL. Poloxamer sols endowed with in-situ gelability and mucoadhesion by adding hypromellose and hyaluronan for prolonging corneal retention and drug delivery. Drug Deliv 2023; 30:2158964. [PMID: 36587631 PMCID: PMC9809414 DOI: 10.1080/10717544.2022.2158964] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
The purpose of this study was to develop poloxamer (P407)-based in-situ thermogellable hydrogels with reducing concentration of P407 by adding hypromellose (HPMC) and with enhancing mucoadhesion of resulting hydrogels by adding hyaluronic acid (HA) for prolonging ocular delivery of hydroxypropyl-β-cyclodextrin (HPβCD)-solubilized testosterone (TES). Results demonstrated that 0.5% TES solution was successfully solubilized with adding 10% HPβCD. Non-gellable 13% P407 sol became in-situ gellable with adding 2.0-2.5% HPMC and mucoadhesibility was further imporved with adding 0.3% HA-L (low MW) or HA-H (high MW). Optimized 0.5% HPβCD-solubilized TES P407-based thermogellable hydrogels with enhancement of mucoadhesion for prolonging ocular delivery comprised 13% P407, 2.5% HPMC, and 0.3% HA-L or HA-H. Furthermore, rheological measurements under simulated eye blinking confirmed that non-thixotropic properties of optimized hydrogels could be spreaded evenly and retain a greater amount of drug-loaded hydrogels on the ocular surface for a longer period to prolong drug delivery. Compared with conventional eye drops, the prolonged residence time of optimized hydrogels from ex vivo and in vivo studies were observed, indicating relationships between rheological properties and in vivo performances. It was concluded that P407-based thermosensitive hydrogels with reducing concentration of P407 and enhancing mucoadhesion was successfully formulated by adding 2.5% HPMC and 0.3% HA in 13% P407 for potentially accomplishing effective clinical treatment of DED.
Collapse
Affiliation(s)
- Ling-Chun Chen
- Department of Biotechnology and Pharmaceutical Technology, Yuanpei University of Medical Technology, Hsinchu, Taiwan, ROC
| | - Shyr-Yi Lin
- Division of Gastroenterology, Department of Internal Medicine, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan, ROC,Department of General Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan, ROC,Center for Drug Evaluation, Taipei, Taiwan, ROC
| | - Wei-Jie Cheng
- School of Pharmacy, College of Pharmacy, Taipei Medical University, Taipei, Taiwan, ROC
| | - Ming-Thau Sheu
- School of Pharmacy, College of Pharmacy, Taipei Medical University, Taipei, Taiwan, ROC
| | - Chi-Yun Chung
- School of Pharmacy, College of Pharmacy, Kaohsiung Medical University, Kaohsiung, Taiwan, ROC
| | - Chen-Hsuan Hsu
- School of Pharmacy, College of Pharmacy, Taipei Medical University, Taipei, Taiwan, ROC
| | - Hong-Liang Lin
- School of Pharmacy, College of Pharmacy, Kaohsiung Medical University, Kaohsiung, Taiwan, ROC,CONTACT Hong-Liang Lin
| |
Collapse
|
42
|
Nguyen TN, Yoo SY, Tangchang W, Lee JY, Son HY, Park JS. Sustained delivery of triamcinolone acetonide from a thermosensitive microemulsion gel system for the treatment of sensorineural hearing loss. Drug Deliv 2023; 30:2242003. [PMID: 37537864 PMCID: PMC10405762 DOI: 10.1080/10717544.2023.2242003] [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: 08/16/2022] [Revised: 04/17/2023] [Accepted: 07/03/2023] [Indexed: 08/05/2023] Open
Abstract
Intratympanic administration for the delivery of steroids has been extensively studied but limited because of low permeability of the drug through the row window membrane. Here, to effectively deliver poorly soluble triamcinolone acetonide (TA), microemulsions (ME) were prepared from Capmul MCM (oil), Cremophor RH40 (surfactant), and tetraglycol (cosurfactant) based on solubility studies, emulsifying ability test, and pseudoternary phase diagrams. Microemulsion gel (MEG) was prepared by mixing TA-ME with a poloxamer hydrogel base. The physicochemical properties of ME and MEG formulations were characterized, and the toxicity and oto-protective effectiveness were evaluated in vitro and in vivo. The ME-3 formulation showed a small droplet size (16.5 ± 0.2 nm), narrow PDI (0.067 ± 0.041), and enhanced TA solubility (2619.7 ± 57.6 μg/g). The optimized MEG demonstrated temperature-dependent gelation with a gelation time of 208 ± 10 sec at 37 °C. Slow degradation of the gel matrix sustained release of TA from MEG compared to the ME formulation. Both TA-ME and TA-MEG were found to be nontoxic to NIH3T3 cells at the test concentrations (0 to 5 µg/mL), and biocompatible after intratympanic administration to mice. The incorporation of ME into thermosensitive hydrogels prolonged retention of TA at the site of administration until 6 days. As a consequence, the enhanced drug absorption into the cochlea in TA-MEG group (approximately 2 times higher than other groups) protected hair cells, spiral ganglion neurons, and stria vascular cells from cisplatin-induced damage. Therefore, this injectable TA-loaded MEG is an effective and safe vehicle for the sustained delivery of triamcinolone acetonide into the inner ear.
Collapse
Affiliation(s)
- Thu Nhan Nguyen
- College of Pharmacy, Chungnam National University, Yuseong-gu, Daejeon, Republic of Korea
| | - So-Yeol Yoo
- College of Pharmacy, Chungnam National University, Yuseong-gu, Daejeon, Republic of Korea
| | - Warisraporn Tangchang
- College of Veterinary Medicine, Chungnam National University, Yuseong-gu, Daejeon, Republic of Korea
| | - Jae-Young Lee
- College of Pharmacy, Chungnam National University, Yuseong-gu, Daejeon, Republic of Korea
| | - Hwa-Young Son
- College of Veterinary Medicine, Chungnam National University, Yuseong-gu, Daejeon, Republic of Korea
| | - Jeong-Sook Park
- College of Pharmacy, Chungnam National University, Yuseong-gu, Daejeon, Republic of Korea
| |
Collapse
|
43
|
Miao G, He Y, Lai K, Zhao Y, He P, Tan G, Wang X. Accelerated blood clearance of PEGylated nanoparticles induced by PEG-based pharmaceutical excipients. J Control Release 2023; 363:12-26. [PMID: 37717659 DOI: 10.1016/j.jconrel.2023.09.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 08/31/2023] [Accepted: 09/01/2023] [Indexed: 09/19/2023]
Abstract
PEGylated nanomedicines have been extensively developed and applied to cancer therapy. However, the antitumor efficacy of these nanoparticles is hampered by the accelerated blood clearance (ABC) effect caused by anti-PEG antibodies in vivo. There is still limited understanding about the cause of pre-existing anti-PEG antibodies in the human body. Herein, we discovered that PEG-based pharmaceutical excipients, commonly used in clinical and daily settings, could induce anti-PEG antibodies in vivo and lead to considerable potential clinical impacts on pharmacokinetics and pharmacodynamics of PEGylated nanoparticles. Specifically, we investigated the ability of poloxamer 188 (F68) and poloxamer 407 (F127), the two most frequently used PEG-based pharmaceutical excipients, to elicit the production of anti-PEG antibodies and influence the pharmacokinetics of PEGylated nanoparticles, with PEGylated liposome nanoparticles (L-NPs) as a model. Anti-PEG IgG and IgM levels were significantly boosted 3.8- and 32.2-fold, respectively, after pre-injection with F68, leading to rapid clearance of subsequently injected L-NPs from circulation due to the capture by neutrophils and monocytes. However, pre-injection of F127 did not induce the production of anti-PEG IgG, although there was a 7.7-fold increase in IgM level, which resulted in minimal effect on circulation time of L-NPs. Furthermore, the potential clinical impacts of F68 and F127 were further inspected for PEGylated liposomal doxorubicin (PLD). It was found that administering F68 prior to treatment led to over a one-third decrease in the antitumor effectiveness of PLD, while F127 had a negligible impact. Our study elucidates the mechanism by which PEG-based pharmaceutical excipients influence the effectiveness of PEGylated nanomedicines. It also highlights the significance of considering the potential for an ABC effect induced by PEG-based pharmaceutical excipients in patients.
Collapse
Affiliation(s)
- Guifeng Miao
- Guangdong Provincial Key Laboratory of Construction and Detection in Tissue Engineering, Biomaterials Research Center, School of Biomedical Engineering, Southern Medical University, 510515 Guangzhou, Guangdong Province, China
| | - Yuejian He
- Guangdong Provincial Key Laboratory of Construction and Detection in Tissue Engineering, Biomaterials Research Center, School of Biomedical Engineering, Southern Medical University, 510515 Guangzhou, Guangdong Province, China
| | - Keren Lai
- Guangdong Provincial Key Laboratory of Construction and Detection in Tissue Engineering, Biomaterials Research Center, School of Biomedical Engineering, Southern Medical University, 510515 Guangzhou, Guangdong Province, China
| | - Yan Zhao
- Guangdong Provincial Key Laboratory of Construction and Detection in Tissue Engineering, Biomaterials Research Center, School of Biomedical Engineering, Southern Medical University, 510515 Guangzhou, Guangdong Province, China
| | - Peiyi He
- Guangdong Provincial Key Laboratory of Construction and Detection in Tissue Engineering, Biomaterials Research Center, School of Biomedical Engineering, Southern Medical University, 510515 Guangzhou, Guangdong Province, China
| | - Guozhu Tan
- Guangdong Provincial Key Laboratory of Construction and Detection in Tissue Engineering, Biomaterials Research Center, School of Biomedical Engineering, Southern Medical University, 510515 Guangzhou, Guangdong Province, China
| | - Xiaorui Wang
- Guangdong Provincial Key Laboratory of Construction and Detection in Tissue Engineering, Biomaterials Research Center, School of Biomedical Engineering, Southern Medical University, 510515 Guangzhou, Guangdong Province, China.
| |
Collapse
|
44
|
Xin C, Duo K, Yu X, Liu L. Evaluation of the in vitro performance of generic and original adapalene gel. Drug Dev Ind Pharm 2023; 49:680-691. [PMID: 37847563 DOI: 10.1080/03639045.2023.2271966] [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: 05/06/2023] [Accepted: 10/12/2023] [Indexed: 10/18/2023]
Abstract
OBJECTIVE The aim was to evaluate the difference of the in vitro behavior between the commercially available generic adapalene gel and original product with Topical Classification System (TCS), and to analyze the effect of changes of excipients on the release behavior. SIGNIFICANCE Establishing in vitro performance assays to understand the impact of formulation variables on the critical quality attributes (CQA) is critical for the quality assessment of semi-solid generic drug. METHODS In vitro release (IVR), in vitro permeation (IVP), viscosity, and pH measurement methods for adapalene gels were established and validated. The differences between generic adapalene gel from 7 companies and original products were evaluated by correlation analysis (CA) and principal component analysis (PCA), and the relationship among 4 parameters was elucidated. The effect of excipients on the above variables was examined by univariate tests. RESULTS There were some differences between the gels of 5 of the 7 imitation enterprises and reference listed drug (RLD). There were varying degrees of correlation between viscosity, pH, the adapalene amount retained in skin and release rate. The result validated the key role of IVR, and identified that pH value, type of suspending agent, the amount of carbomer, etc. had certain effects on the release rate. CONCLUSIONS The factors mentioned above should be considered when developing and manufacturing generic adapalene gels, and the application of TCS in the evaluation of generic topical drugs was advanced. Additionally, our research revealed some discrepancies from USP<1724>, which could be valuable information for the revision.
Collapse
Affiliation(s)
- Changying Xin
- Heilongjiang Institute for Drug Control, Harbin, Heilongjiang, China
| | - Kai Duo
- Heilongjiang Institute for Drug Control, Harbin, Heilongjiang, China
| | - Xinying Yu
- Heilongjiang Institute for Drug Control, Harbin, Heilongjiang, China
| | - Liqun Liu
- Heilongjiang Institute for Drug Control, Harbin, Heilongjiang, China
| |
Collapse
|
45
|
Abdallah MH, El-Horany HES, El-Nahas HM, Ibrahim TM. Tailoring Risperidone-Loaded Glycethosomal In Situ Gels Using Box-Behnken Design for Treatment of Schizophrenia-Induced Rats via Intranasal Route. Pharmaceutics 2023; 15:2521. [PMID: 38004501 PMCID: PMC10675145 DOI: 10.3390/pharmaceutics15112521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Revised: 10/17/2023] [Accepted: 10/20/2023] [Indexed: 11/26/2023] Open
Abstract
Schizophrenic patients often face challenges with adherence to oral regimens. The study aimed to highlight the potentiality of intranasal ethanol/glycerin-containing lipid-nanovesicles (glycethosomes) incorporated into in situ gels for sustaining anti-psychotic risperidone (RS) release. The Box-Behnken Design (BBD) was followed for in vitro characterization. Glycethosomal-based in situ gels were examined by physical, ex vivo, and in vivo investigations. The ethanol impact on minimizing the vesicle size (VS) and enhancing the zeta potential (ZP) and entrapment efficiency (EE%) of nanovesicles was observed. Glycerin displayed positive action on increasing VS and ZP of nanovesicles, but reduced their EE%. After incorporation into various mucoadhesive agent-enriched poloxamer 407 (P407) in situ gels, the optimized gel containing 20% P407 and 1% hydroxypropyl methyl cellulose-K4M (HPMC-K4M) at a 4:1 gel/glycethosomes ratio showed low viscosity and high spreadability with acceptable pH, gel strength, and mucoadhesive strength ranges. The ethanol/glycerin mixture demonstrated a desirable ex vivo skin permeability of RS through the nasal mucosa. By pharmacokinetic analysis, the optimized gel showed eight-fold and three-fold greater increases in RS bioavailability than the control gel and marketed tablet, respectively. Following biochemical assessments of schizophrenia-induced rats, the optimized gel boosted the neuroprotective, anti-oxidant, and anti-inflammatory action of RS in comparison to other tested preparations. Collectively, the intranasal RS-loaded glycethosomal gel offered a potential substitute to oral therapy for schizophrenic patients.
Collapse
Affiliation(s)
- Marwa H. Abdallah
- Department of Pharmaceutics, College of Pharmacy, University of Ha’il, Ha’il 81442, Saudi Arabia
- Department of Pharmaceutics, Faculty of Pharmacy, Zagazig University, Zagazig 44519, Egypt; (H.M.E.-N.); (T.M.I.)
| | - Hemat El-Sayed El-Horany
- Department of Biochemistry, College of Medicine, University of Ha’il, Ha’il 81442, Saudi Arabia;
- Department of Medical Biochemistry, Faculty of Medicine, Tanta University, Tanta 31511, Egypt
| | - Hanan M. El-Nahas
- Department of Pharmaceutics, Faculty of Pharmacy, Zagazig University, Zagazig 44519, Egypt; (H.M.E.-N.); (T.M.I.)
| | - Tarek M. Ibrahim
- Department of Pharmaceutics, Faculty of Pharmacy, Zagazig University, Zagazig 44519, Egypt; (H.M.E.-N.); (T.M.I.)
| |
Collapse
|
46
|
Ingrungruengluet P, Wang D, Li X, Yang C, Waiprib Y, Li C. Preparation and Primary Bioactivity Evaluation of Novel Water-Soluble Curcumin-Loaded Polymeric Micelles Fabricated with Chitooligosaccharides and Pluronic F-68. Pharmaceutics 2023; 15:2497. [PMID: 37896257 PMCID: PMC10609826 DOI: 10.3390/pharmaceutics15102497] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Revised: 10/11/2023] [Accepted: 10/17/2023] [Indexed: 10/29/2023] Open
Abstract
Curcumin (CU) is a bioactive compound extracted from turmeric and has various advantages. However, the benefit of CU is limited by its low water solubility (11 ng/mL). This research aimed to fabricate a water-soluble CU nano-formulation with chitooligosaccharides (COS) and pluronic F-68 (PF) utilizing the polymeric micelle method. The optimized curcumin-loaded chitooligosaccharides/pluronic F-68 micelles (COSPFCU) exhibited high encapsulation efficiency and loading capacity (75.57 ± 2.35% and 10.32 ± 0.59%, respectively). The hydrodynamic diameter of lyophilized COSPFCU was 73.89 ± 11.69 nm with a polydispersity index below 0.3. The COSPFCU could be completely redispersed in water and showed high DPPH scavenging ability. Meanwhile, COSPFCU could significantly reduce the cytotoxicity of the RAW 264.7 cells compared to native CU. Furthermore, COSPFCU improved the inhibition of NO release activity at 72.83 ± 2.37% but 33.20 ± 3.41% for the CU, with a low cytotoxicity concentration in the RAW 264.7 cells.
Collapse
Affiliation(s)
- Pattarachat Ingrungruengluet
- Shandong Key Laboratory of Glycoscience and Glycotechnology, Key Laboratory of Marine Drugs of Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China (X.L.); (C.Y.)
- Department of Fishery Products, Faculty of Fisheries, Kasetsart University, Bangkok 10900, Thailand
| | - Dingfu Wang
- Shandong Key Laboratory of Glycoscience and Glycotechnology, Key Laboratory of Marine Drugs of Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China (X.L.); (C.Y.)
| | - Xin Li
- Shandong Key Laboratory of Glycoscience and Glycotechnology, Key Laboratory of Marine Drugs of Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China (X.L.); (C.Y.)
| | - Cheng Yang
- Shandong Key Laboratory of Glycoscience and Glycotechnology, Key Laboratory of Marine Drugs of Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China (X.L.); (C.Y.)
| | - Yaowapha Waiprib
- Department of Fishery Products, Faculty of Fisheries, Kasetsart University, Bangkok 10900, Thailand
- Center for Advanced Studies for Agriculture and Food (CASAF), Kasetsart University Institute for Advanced Studies, Kasetsart University, Bangkok 10900, Thailand
| | - Chunxia Li
- Shandong Key Laboratory of Glycoscience and Glycotechnology, Key Laboratory of Marine Drugs of Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China (X.L.); (C.Y.)
| |
Collapse
|
47
|
Wunnoo S, Lorenzo-Leal AC, Voravuthikunchai SP, Bach H. Advanced biomaterial agent from chitosan/poloxamer 407-based thermosensitive hydrogen containing biosynthesized silver nanoparticles using Eucalyptus camaldulensis leaf extract. PLoS One 2023; 18:e0291505. [PMID: 37862295 PMCID: PMC10588896 DOI: 10.1371/journal.pone.0291505] [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: 05/16/2023] [Accepted: 08/30/2023] [Indexed: 10/22/2023] Open
Abstract
CONTEXT The emergence of multidrug-resistant (MDR) pathogens poses a significant challenge for global public health systems, increasing hospital morbidity and mortality and prolonged hospitalization. OBJECTIVE We evaluated the antimicrobial activity of a thermosensitive hydrogel containing bio-synthesized silver nanoparticles (bio-AgNPs) based on chitosan/poloxamer 407 using a leaf extract of Eucalyptus calmadulensis. RESULTS The thermosensitive hydrogel was prepared by a cold method after mixing the ingredients and left at 4°C overnight to ensure the complete solubilization of poloxamer 407. The stability of the hydrogel formulation was evaluated at room temperature for 3 months, and the absorption peak (420 nm) of the NPs remained unchanged. The hydrogel formulation demonstrated rapid gelation under physiological conditions, excellent water retention (85%), and broad-spectrum antimicrobial activity against MDR clinical isolates and ATCC strains. In this regard, minimum inhibitory concentration and minimum microbial concentration values of the bio-AgNPs ranged from 2-8 μg/mL to 8-128 μg/mL, respectively. Formulation at concentrations <64 μg/mL showed no cytotoxic effect on human-derived macrophages (THP-1 cells) with no induction of inflammation. CONCLUSIONS The formulated hydrogel could be used in biomedical applications as it possesses a broad antimicrobial spectrum and anti-inflammatory properties without toxic effects on human cells.
Collapse
Affiliation(s)
- Suttiwan Wunnoo
- Faculty of Science, Division of Biological Science, Prince of Songkhla University, Hat Yai, Songkhla, Thailand
- Center of Antimicrobial Biomaterial Innovation-Southeast Asia, Prince of Songkhla University, Hat Yai, Songkhla, Thailand
- Division of Infectious Disease, Department of Medicine, University of British Columbia, Vancouver, BC, Canada
| | - Ana C Lorenzo-Leal
- Division of Infectious Disease, Department of Medicine, University of British Columbia, Vancouver, BC, Canada
| | - Supayang P Voravuthikunchai
- Faculty of Science, Division of Biological Science, Prince of Songkhla University, Hat Yai, Songkhla, Thailand
- Center of Antimicrobial Biomaterial Innovation-Southeast Asia, Prince of Songkhla University, Hat Yai, Songkhla, Thailand
| | - Horacio Bach
- Division of Infectious Disease, Department of Medicine, University of British Columbia, Vancouver, BC, Canada
| |
Collapse
|
48
|
Li X, Tan TTY, Lin Q, Lim CC, Goh R, Otake KI, Kitagawa S, Loh XJ, Lim JYC. MOF-Thermogel Composites for Differentiated and Sustained Dual Drug Delivery. ACS Biomater Sci Eng 2023; 9:5724-5736. [PMID: 37729089 DOI: 10.1021/acsbiomaterials.3c01103] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/22/2023]
Abstract
In recent years, multidrug therapy has gained increasing popularity due to the possibility of achieving synergistic drug action and sequential delivery of different medical payloads for enhanced treatment efficacy. While a number of composite material release platforms have been developed, few combine the bottom-up design versatility of metal-organic frameworks (MOFs) to tailor drug release behavior, with the convenience of temperature-responsive hydrogels (or thermogels) in their unique ease of administration and formulation. Yet, despite their potential, MOF-thermogel composites have been largely overlooked for simultaneous multidrug delivery. Herein, we report the first systematic study of common MOFs (UiO-66, MIL-53(Al), MIL-100(Fe), and MOF-808) with different pore sizes, geometries, and hydrophobicities for their ability to achieve simultaneous dual drug release when embedded within PEG-containing thermogel matrices. After establishing that MOFs exert small influences on the rheological properties of the thermogels despite the penetration of polymers into the MOF pores in solution, the release profiles of ibuprofen and caffeine as model hydrophobic and hydrophilic drugs, respectively, from MOF-thermogel composites were investigated. Through these studies, we elucidated the important role of hydrophobic matching between MOF pores and loaded drugs in order for the MOF component to distinctly influence drug release kinetics. These findings enabled us to identify a viable MOF-thermogel composite containing UiO-66 that showed vastly different release kinetics between ibuprofen and caffeine, enabling temporally differentiated yet sustained simultaneous drug release to be achieved. Finally, the MOF-thermogel composites were shown to be noncytotoxic in vitro, paving the way for these underexploited composite materials to find possible clinical applications for multidrug therapy.
Collapse
Affiliation(s)
- Xin Li
- Laboratory for Green Porous Materials, Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis #08-03, Singapore 138634, Republic of Singapore
| | - Tristan T Y Tan
- Laboratory for Green Porous Materials, Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis #08-03, Singapore 138634, Republic of Singapore
| | - Qianyu Lin
- Laboratory for Green Porous Materials, Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis #08-03, Singapore 138634, Republic of Singapore
| | - Chen Chuan Lim
- Institute of Sustainability for Chemicals, Energy and Environment (ISCE2), Agency for Science, Technology and Research (A*STAR), 1 Pesek Road Jurong Island, Singapore 627833, Republic of Singapore
| | - Rubayn Goh
- Laboratory for Green Porous Materials, Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis #08-03, Singapore 138634, Republic of Singapore
| | - Ken-Ichi Otake
- Laboratory for Green Porous Materials, Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis #08-03, Singapore 138634, Republic of Singapore
- Institute for Integrated Cell-Material Sciences, Kyoto University Institute for Advanced Study, Kyoto University, Yoshida Ushinomiya-cho, Sakyo-ku, Kyoto 606-8501, Japan
| | - Susumu Kitagawa
- Laboratory for Green Porous Materials, Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis #08-03, Singapore 138634, Republic of Singapore
- Institute for Integrated Cell-Material Sciences, Kyoto University Institute for Advanced Study, Kyoto University, Yoshida Ushinomiya-cho, Sakyo-ku, Kyoto 606-8501, Japan
| | - Xian Jun Loh
- Laboratory for Green Porous Materials, Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis #08-03, Singapore 138634, Republic of Singapore
- Institute of Sustainability for Chemicals, Energy and Environment (ISCE2), Agency for Science, Technology and Research (A*STAR), 1 Pesek Road Jurong Island, Singapore 627833, Republic of Singapore
- Department of Materials Science and Engineering, National University of Singapore (NUS), 9 Engineering Drive, Singapore 117576, Republic of Singapore
| | - Jason Y C Lim
- Laboratory for Green Porous Materials, Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis #08-03, Singapore 138634, Republic of Singapore
- Department of Materials Science and Engineering, National University of Singapore (NUS), 9 Engineering Drive, Singapore 117576, Republic of Singapore
| |
Collapse
|
49
|
Makabenta JMV, Nabawy A, Chattopadhyay AN, Jeon T, Park J, Lo PC, Nosovitski S, Huang R, Li CH, Jiang M, Rotello VM. Antimicrobial polymer-loaded hydrogels for the topical treatment of multidrug-resistant wound biofilm infections. J Control Release 2023; 362:513-523. [PMID: 37666301 PMCID: PMC10591942 DOI: 10.1016/j.jconrel.2023.09.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 08/30/2023] [Accepted: 09/01/2023] [Indexed: 09/06/2023]
Abstract
Integration of antimicrobial polymeric nanoparticles into hydrogel materials presents a promising strategy to address multidrug-resistant biofilm infections. Here we report an injectable hydrogel loaded with engineered cationic antimicrobial polymeric nanoparticles (PNPs) for the effective topical treatment of severe wound biofilm infections. The PNPs demonstrated biofilm penetration and disruption, resulting in the eradication of resistant and persister cells that reside within the biofilm. Significantly, PNPs did not elicit resistance development even after multiple exposures to sub-therapeutic doses. In vitro studies showed PNPs significantly reduced prolonged inflammation due to infection and promoted fibroblast migration. These PNPs were then incorporated into Poloxamer 407 (P407) hydrogels and utilized as an inert carrier for PNPs to provide a controlled and sustained topical release of the antimicrobial nanoparticles at the wound area. In vivo studies using a mature (4-day) wound biofilm infection in a murine model mimicking severe human wound infections demonstrated provided 99% bacterial biofilm clearance and significantly enhanced wound healing. Overall, this work demonstrated the efficacy and selectivity of the antimicrobial polymer-loaded hydrogel platform as a topical treatment for difficult-to-treat wound biofilm infections.
Collapse
Affiliation(s)
- Jessa Marie V Makabenta
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant Street, Amherst, MA 01003, United States
| | - Ahmed Nabawy
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant Street, Amherst, MA 01003, United States
| | - Aritra Nath Chattopadhyay
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant Street, Amherst, MA 01003, United States
| | - Taewon Jeon
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant Street, Amherst, MA 01003, United States
| | - Jungmi Park
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant Street, Amherst, MA 01003, United States
| | - Pui Chi Lo
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant Street, Amherst, MA 01003, United States
| | - Stas Nosovitski
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant Street, Amherst, MA 01003, United States
| | - Rui Huang
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant Street, Amherst, MA 01003, United States
| | - Cheng-Hsuan Li
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant Street, Amherst, MA 01003, United States
| | - Mingdi Jiang
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant Street, Amherst, MA 01003, United States
| | - Vincent M Rotello
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant Street, Amherst, MA 01003, United States.
| |
Collapse
|
50
|
Semenova MN, Melik-Nubarov NS, Semenov VV. Application of Pluronics for Enhancing Aqueous Solubility of Lipophilic Microtubule Destabilizing Compounds on the Sea Urchin Embryo Model. Int J Mol Sci 2023; 24:14695. [PMID: 37834142 PMCID: PMC10572563 DOI: 10.3390/ijms241914695] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2023] [Revised: 09/16/2023] [Accepted: 09/26/2023] [Indexed: 10/15/2023] Open
Abstract
In screening, the dilution of DMSO stock solution of a lipophilic molecule with an assay medium often causes compound precipitation. To overcome the issue, the application of Pluronics as cosolvents was examined using a phenotypic sea urchin embryo assay that allows for the quick and facile evaluation of the antiproliferative effect together with systemic toxicity. Maximum tolerated concentration values for Pluronics L121, P123, and F127 were 1.4 μM, 8.6 μM, and 39.7 μM, respectively, and correlated directly with their hydrophilicity. Pluronics L121 and P123 suppressed cleavage and blastomeres retained the round shape, unlike hydrophilic Pluronic F127, which induced fertilization envelope creasing and embryo deformation that could be associated with the interaction of hydrophilic PEO units with mucopolysaccharides at the surface of sea urchin embryos. The toxicity of P123, but not of L121 and F127, was temperature-dependent and markedly increased at lower temperatures. CMC values obtained at different temperatures confirmed that the toxic effect of P123 was associated with both unimers and micelles, whereas F127 toxicity was related mainly to micelles. Evaluation using phenotypic sea urchin embryo assay revealed that potent microtubule destabilizers, namely albendazole, diarylisoxazole, and two chalcones, retained antimitotic activity after the dilution of their DMSO or 2-pyrrolidone stock solutions with 1.25% w/v Pluronic P123 or 5% w/v Pluronic F127. It was suggested that Pluronic P123 and Pluronic F127 could be used as cosolvents to improve the solubility of lipophilic molecules in aqueous medium.
Collapse
Affiliation(s)
- Marina N. Semenova
- N.K. Koltzov Institute of Developmental Biology RAS, 26 Vavilov Street, 119334 Moscow, Russia;
| | - Nikolay S. Melik-Nubarov
- Department of Chemistry, M.V. Lomonosov Moscow State University, Leninskie Gory, 1/11B, 119991 Moscow, Russia;
| | - Victor V. Semenov
- N.D. Zelinsky Institute of Organic Chemistry RAS, 47 Leninsky Prospect, 119991 Moscow, Russia
| |
Collapse
|