1
|
Quadrado RFN, Zhai Z, Zavadinack M, Klassen G, Iacomini M, Edgar KJ, Fajardo AR. All-polysaccharide, self-healing, pH-sensitive, in situ-forming hydrogel of carboxymethyl chitosan and aldehyde-functionalized hydroxyethyl cellulose. Carbohydr Polym 2024; 336:122105. [PMID: 38670749 DOI: 10.1016/j.carbpol.2024.122105] [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: 11/18/2023] [Revised: 03/25/2024] [Accepted: 03/26/2024] [Indexed: 04/28/2024]
Abstract
In situ forming hydrogels are promising for biomedical applications, especially in drug delivery. The precursor solution can be injected at the target site, where it undergoes a sol-gel transition to afford a hydrogel. In this sense, the most significant characteristic of these hydrogels is fast gelation behavior after injection. This study describes an all-polysaccharide, rapidly in situ-forming hydrogel composed of carboxymethyl chitosan (CMCHT) and hydroxyethyl cellulose functionalized with aldehyde groups (HEC-Ald). The HEC-Ald was synthesized through acetal functionalization, followed by acid deprotection. This innovative approach avoids cleavage of pyran rings, as is inherent in the periodate oxidation approach, which is the most common method currently employed for adding aldehyde groups to polysaccharides. The resulting hydrogel exhibited fast stress relaxation, self-healing properties, and pH sensitivity, which allowed it to control the release of an encapsulated model drug in response to the medium pH. Based on the collected data, the HEC-Ald/CMCHT hydrogels show promise as pH-sensitive drug carriers.
Collapse
Affiliation(s)
- Rafael F N Quadrado
- Laboratório de Tecnologia e Desenvolvimento de Compósitos e Materiais Poliméricos (LaCoPol), Federal University of Pelotas, 96010-900 Pelotas, RS, Brazil
| | - Zhenghao Zhai
- Macromolecules Innovation Institute, Virginia Tech, Blacksburg, VA 24061, USA
| | - Matheus Zavadinack
- Department of Biochemistry and Molecular Biology, Paraná Federal University, 81531-980 Curitiba, PR, Brazil
| | - Giseli Klassen
- Department of Basic Pathology, Paraná Federal University, 81531-980 Curitiba, PR, Brazil
| | - Marcello Iacomini
- Department of Biochemistry and Molecular Biology, Paraná Federal University, 81531-980 Curitiba, PR, Brazil
| | - Kevin J Edgar
- Macromolecules Innovation Institute, Virginia Tech, Blacksburg, VA 24061, USA; Department of Sustainable Biomaterials, Virginia Tech, Blacksburg, VA 24061, USA
| | - André R Fajardo
- Laboratório de Tecnologia e Desenvolvimento de Compósitos e Materiais Poliméricos (LaCoPol), Federal University of Pelotas, 96010-900 Pelotas, RS, Brazil.
| |
Collapse
|
2
|
Ahmad A, Dhanalekshmi UM, Koumaravelu K, Francis AP, Khan SA, Abuzinadah MF, Selvasudha N. A Study on Pharmacokinetic Functionalities and Safety Margins of an Optimized Simvastatin Nanoformulation. Pharmaceuticals (Basel) 2023; 16:ph16030380. [PMID: 36986480 PMCID: PMC10056947 DOI: 10.3390/ph16030380] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Revised: 02/22/2023] [Accepted: 02/26/2023] [Indexed: 03/06/2023] Open
Abstract
A pharmaceutical formulation with favorable pharmacokinetic parameters is more likely to be efficacious and safe to overcome the failures of the drug resulting from lack of efficacy, poor bioavailability, and toxicity. In this view, we aimed to evaluate the pharmacokinetic functionalities and safety margin of an optimized CS-SS nanoformulation (F40) by in vitro/in vivo methods. The everted sac technique was used to evaluate the improved absorption of a simvastatin formulation. In vitro protein binding in bovine serum and mice plasma was performed. The formulation’s liver and intestinal CYP3A4 activity and metabolic pathways were investigated by the qRT-PCR technique. The excretion of cholesterol and bile acids was measured to demonstrate the formulation’s cholesterol depletion effect. Safety margins were determined by histopathology as well as fiber typing studies. In vitro protein binding results revealed the existence of a high percentage of free drugs (22.31 ± 3.1%, 18.20 ± 1.9%, and 16.9 ± 2.2%, respectively) compared to the standard formulation. The controlled metabolism in the liver was demonstrated from CYP3A4 activity. The formulation showed enhanced PK parameters in rabbits such as a lower Cmax, clearance, and a higher Tmax, AUC, Vd, and t1/2. qRT-PCR screening further proved the different metabolic pathways followed by simvastatin (SREBP-2) and chitosan (PPAR-γ pathway) in the formulation. The results from qRT-PCR and histopathology confirmed the toxicity level. Hence, this pharmacokinetic profile of the nanoformulation proved it has a unique synergistic hypolipidemic modality.
Collapse
Affiliation(s)
- Aftab Ahmad
- Health Information Technology Department, Faculty of Applied Studies, King Abdulaziz University, Jeddah 21589, Saudi Arabia
- Pharmacovigilance and Medication Safety Unit, Center of Research Excellence for Drug Research and Pharmaceutical Industries, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Unnikrishnan Meenakshi Dhanalekshmi
- College of Pharmacy, National University of Science and Technology, Muscat PC 130, Oman
- Centre of Molecular Medicine and Diagnostics (COMMAND), Saveetha Dental College and Hospitals, Saveetha Institute of Medical & Technical Sciences, Saveetha University, Chennai 600077, India
- Correspondence: (U.M.D.); (N.S.)
| | | | - Arul Prakash Francis
- Centre of Molecular Medicine and Diagnostics (COMMAND), Saveetha Dental College and Hospitals, Saveetha Institute of Medical & Technical Sciences, Saveetha University, Chennai 600077, India
| | - Shah Alam Khan
- College of Pharmacy, National University of Science and Technology, Muscat PC 130, Oman
- Centre of Molecular Medicine and Diagnostics (COMMAND), Saveetha Dental College and Hospitals, Saveetha Institute of Medical & Technical Sciences, Saveetha University, Chennai 600077, India
| | - Mohammed F. Abuzinadah
- Department of Medical Laboratory Technology, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Nandakumar Selvasudha
- Department of Biotechnology, Pondicherry University, Puducherry 605014, India
- Correspondence: (U.M.D.); (N.S.)
| |
Collapse
|
3
|
Nichols BLB, Chen J, Mischnick P, Edgar KJ. Selective Oxidation of 2-Hydroxypropyl Ethers of Cellulose and Dextran: Simple and Efficient Introduction of Versatile Ketone Groups to Polysaccharides. Biomacromolecules 2020; 21:4835-4849. [PMID: 33236636 DOI: 10.1021/acs.biomac.0c01045] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Oxidation of polysaccharides has been a useful approach to new materials. However, selectivity in oxidation of polysaccharide macromolecular polyols remains a significant challenge with few methods for the synthesis of ketone-substituted polysaccharides. We report here a selective, practical, and efficient process, beginning with 2-hydroxypropyl ethers of polysaccharides that are simple and economical to prepare. We demonstrate this approach herein using commercial 2-hydroxypropyl cellulose (HPC) and 2-hydroxypropyl dextran (HPD) that we prepared. We oxidize the terminal, secondary alcohols of the oligo(2-hydroxypropyl) substituents with sodium hypochlorite so that the product has an oligo(2-hydroxypropyl) side chains terminated by a ketone. We demonstrate the high chemo- and regioselectivity of this oxidation by analytical methods including hydrolysis to monosaccharides and mass spectrometry of the resulting mixture. We provide an initial demonstration of the potential utility of these keto-polysaccharides by reacting Ox-HPC with primary amines to form Schiff base imines, providing proactive polymers.
Collapse
Affiliation(s)
- Brittany L B Nichols
- Department of Chemistry, Virginia Tech, Blacksburg, Virginia 24061, United States
| | - Junyi Chen
- Department of Chemistry, Virginia Tech, Blacksburg, Virginia 24061, United States
| | - Petra Mischnick
- Institute of Food Chemistry, Technische Universität Braunschweig, 38106 Braunschweig, Germany
| | - Kevin J Edgar
- Department of Sustainable Biomaterials, Virginia Tech, Blacksburg, Virginia 24061, United States.,Macromolecules Innovation Institute, Virginia Tech, Blacksburg, Virginia 24061, United States
| |
Collapse
|
4
|
Chai Z, Teng C, Yang L, Ren L, Yuan Z, Xu S, Cheng M, Wang Y, Yan Z, Qin C, Han X, Yin L. Doxorubicin delivered by redox-responsive Hyaluronic Acid–Ibuprofen prodrug micelles for treatment of metastatic breast cancer. Carbohydr Polym 2020; 245:116527. [DOI: 10.1016/j.carbpol.2020.116527] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Revised: 05/22/2020] [Accepted: 05/28/2020] [Indexed: 12/17/2022]
|
5
|
Abbas K, Hussain MA, Bukhari SNA, Amin M, Tahir MN, Bhosale SV. Flurbiprofen conjugates based on hydroxyethylcellulose: Synthesis, characterization, pharmaceutical and pharmacological applications. ARAB J CHEM 2020. [DOI: 10.1016/j.arabjc.2018.03.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022] Open
|
6
|
Ho DK, Nichols BLB, Edgar KJ, Murgia X, Loretz B, Lehr CM. Challenges and strategies in drug delivery systems for treatment of pulmonary infections. Eur J Pharm Biopharm 2019; 144:110-124. [PMID: 31493510 DOI: 10.1016/j.ejpb.2019.09.002] [Citation(s) in RCA: 79] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2019] [Revised: 08/23/2019] [Accepted: 09/03/2019] [Indexed: 01/08/2023]
Abstract
Inhalation therapy has been reported as the most effective treatment for respiratory bacterial infections due to the increasing relevance of drug bioavailability. Drug delivery systems (DDS) have the capacity to overcome pulmonary biological barriers limiting the bioavailability of inhaled anti-infectives. This is important to eradicate bacterial infections and to prevent the development of bacterial resistance. Despite substantial efforts in the field, the current state-of-the-art often fails to achieve those goals, and we still observe increasing bacterial resistance. We give a brief insight on benefits and challenges in pulmonary delivery of anti-infectives. In the context of drug delivery development for pulmonary infections, particularly focusing on Pseudomonas aeruginosa (PA) infections, this mini review will critically discuss the main requirements, as well as the recent strategies of drug delivery system synthesis and preparation. Finally, interaction of DDS with crucial pulmonary biological barriers will be of great importance for the success of future applications of the developed DDS.
Collapse
Affiliation(s)
- Duy-Khiet Ho
- Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Center for Infection Research (HZI), Saarland University, D-66123 Saarbrücken, Germany
| | - Brittany L B Nichols
- Department of Chemistry, Virginia Tech, Blacksburg, VA 24061, United States; Macromolecules Innovation Institute, Virginia Tech, Blacksburg, VA 24061, United States
| | - Kevin J Edgar
- Macromolecules Innovation Institute, Virginia Tech, Blacksburg, VA 24061, United States; Department of Sustainable Biomaterials, Virginia Tech, Blacksburg, VA 24061, United States
| | - Xabier Murgia
- Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Center for Infection Research (HZI), Saarland University, D-66123 Saarbrücken, Germany
| | - Brigitta Loretz
- Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Center for Infection Research (HZI), Saarland University, D-66123 Saarbrücken, Germany.
| | - Claus-Michael Lehr
- Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Center for Infection Research (HZI), Saarland University, D-66123 Saarbrücken, Germany; Department of Pharmacy, Saarland University, D-66123 Saarbrücken, Germany
| |
Collapse
|
7
|
Design of cellulose ether-based macromolecular prodrugs of ciprofloxacin for extended release and enhanced bioavailability. Int J Biol Macromol 2018; 113:719-728. [DOI: 10.1016/j.ijbiomac.2018.02.142] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2018] [Revised: 02/13/2018] [Accepted: 02/22/2018] [Indexed: 11/18/2022]
|