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Stiepel RT, Pena ES, Ehrenzeller SA, Gallovic MD, Lifshits LM, Genito CJ, Bachelder EM, Ainslie KM. A predictive mechanistic model of drug release from surface eroding polymeric nanoparticles. J Control Release 2022; 351:883-895. [PMID: 36208792 PMCID: PMC10407653 DOI: 10.1016/j.jconrel.2022.09.067] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Revised: 09/16/2022] [Accepted: 09/29/2022] [Indexed: 11/17/2022]
Abstract
Effective drug delivery requires ample dosing at the target tissue while minimizing negative side effects. Drug delivery vehicles such as polymeric nanoparticles (NPs) are often employed to accomplish this challenge. In this work, drug release of numerous drugs from surface eroding polymeric NPs was evaluated in vitro in physiologically relevant pH 5 and neutral buffers. NPs were loaded with paclitaxel, rapamycin, resiquimod, or doxorubicin and made from an FDA approved polyanhydride or from acetalated dextran (Ace-DEX), which has tunable degradation rates based on cyclic acetal coverage (CAC). By varying encapsulate, pH condition, and polymer, a range of distinct drug release profiles were achieved. To model the obtained drug release curves, a mechanistic mathematical model was constructed based on drug diffusion and polymer degradation. The resulting diffusion-erosion model accurately described drug release from the variety of surface eroding NPs. For drug release from varied CAC Ace-DEX NPs, the goodness of fit of the developed diffusion-erosion model was compared to several conventional drug release models. The diffusion-erosion model maintained optimal fit compared to conventional models across a range of conditions. Machine learning was then employed to estimate effective diffusion coefficients for the diffusion-erosion model, resulting in accurate prediction of in vitro release of dexamethasone and 3'3'-cyclic guanosine monophosphate-adenosine monophosphate from Ace-DEX NPs. This predictive modeling has potential to aid in the design of future Ace-DEX formulations where optimized drug release kinetics can lead to a desired therapeutic effect.
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Affiliation(s)
- Rebeca T Stiepel
- Division of Pharmacoengineering and Molecular Pharmaceutics, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, USA
| | - Erik S Pena
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill, USA
| | - Stephen A Ehrenzeller
- Division of Pharmacoengineering and Molecular Pharmaceutics, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, USA
| | | | - Liubov M Lifshits
- Division of Pharmacoengineering and Molecular Pharmaceutics, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, USA
| | - Christopher J Genito
- Department of Microbiology & Immunology, UNC School of Medicine, University of North Carolina, Chapel Hill, USA
| | - Eric M Bachelder
- Division of Pharmacoengineering and Molecular Pharmaceutics, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, USA
| | - Kristy M Ainslie
- Division of Pharmacoengineering and Molecular Pharmaceutics, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, USA; Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill, USA; Department of Microbiology & Immunology, UNC School of Medicine, University of North Carolina, Chapel Hill, USA.
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Oroná JD, Zorrilla SE, Peralta JM. Sensitivity analysis on the release of food active compounds from viscoelastic matrices. J FOOD ENG 2022. [DOI: 10.1016/j.jfoodeng.2021.110919] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Leong YH, Isa ASM, Mohamed Mahmood M, Moey CEJ, Utar Z, Soon YI, Majid MIA. Acute and repeated dose 28-day oral toxicity of poly(3-hydroxybutyrate-co-4-hydroxybutyrate) nanoparticles in Sprague-Dawley rats. Regul Toxicol Pharmacol 2018; 95:280-288. [PMID: 29567329 DOI: 10.1016/j.yrtph.2018.03.011] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2016] [Revised: 03/14/2018] [Accepted: 03/18/2018] [Indexed: 10/17/2022]
Abstract
This study aimed to investigate the oral acute and subacute toxicity of Poly [3-hydroxybutyrate-co-4-hydroxybutyrate], P(3HB-co-4HB) in the form of nanoparticles in Sprague-Dawley rats. Acute oral administration of P(3HB-co-4HB) nanoparticles was performed as a single dose up to 2000 mg/kg in six female rats for 14 days. Subacute toxicity study via oral administration for 28 days at doses of 0 (control), 500, 1000 and 2000 mg/kg in rats (10 rats in each group, female:male = 1:1) was conducted. The estimated lethal dose (LD50) of P(3HB-co-4HB) nanoparticles was >2000 mg/kg. No mortality, unusual changes in behaviour, adverse clinical signs, abnormal changes in body weights or food consumption were observed on all animals treated with P(3HB-co-4HB) nanoparticles during 14 days of the acute toxicity study. In the subacute test, there was no mortality and toxicologically significant changes in clinical signs, body weights, food consumption, hematology, clinical biochemistry, urinalysis, macroscopic findings, organ weights as well as histopathological examination were observed.
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Affiliation(s)
- Yin-Hui Leong
- National Poison Centre, Universiti Sains Malaysia, 11800, USM, Penang, Malaysia.
| | - Anis Syaffini Mat Isa
- Malaysian Institute of Pharmaceuticals and Nutraceuticals (IPharm), National Institutes of Biotechnology Malaysia, Ministry of Science, Technology and Innovation, Block 5-D, Halaman Bukit Gambir, 11700 Penang, Malaysia
| | - Mazlianum Mohamed Mahmood
- Malaysian Institute of Pharmaceuticals and Nutraceuticals (IPharm), National Institutes of Biotechnology Malaysia, Ministry of Science, Technology and Innovation, Block 5-D, Halaman Bukit Gambir, 11700 Penang, Malaysia
| | - Chiew Erh Jacqueline Moey
- Malaysian Institute of Pharmaceuticals and Nutraceuticals (IPharm), National Institutes of Biotechnology Malaysia, Ministry of Science, Technology and Innovation, Block 5-D, Halaman Bukit Gambir, 11700 Penang, Malaysia
| | - Zulkhurnain Utar
- Malaysian Institute of Pharmaceuticals and Nutraceuticals (IPharm), National Institutes of Biotechnology Malaysia, Ministry of Science, Technology and Innovation, Block 5-D, Halaman Bukit Gambir, 11700 Penang, Malaysia
| | - Yong-Ing Soon
- Malaysian Institute of Pharmaceuticals and Nutraceuticals (IPharm), National Institutes of Biotechnology Malaysia, Ministry of Science, Technology and Innovation, Block 5-D, Halaman Bukit Gambir, 11700 Penang, Malaysia
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Lupi FR, Mancina V, Baldino N, Parisi OI, Scrivano L, Gabriele D. Effect of the monostearate/monopalmitate ratio on the oral release of active agents from monoacylglycerol organogels. Food Funct 2018; 9:3278-3290. [DOI: 10.1039/c8fo00594j] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
GMP/GMS organogels are promising systems for oral delivery in functional or medical foods.
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Affiliation(s)
- F. R. Lupi
- Department of Information
- Modelling
- Electronics and System Engineering
- (D.I.M.E.S.) University of Calabria
- I-87036 Rende
| | - V. Mancina
- Department of Information
- Modelling
- Electronics and System Engineering
- (D.I.M.E.S.) University of Calabria
- I-87036 Rende
| | - N. Baldino
- Department of Information
- Modelling
- Electronics and System Engineering
- (D.I.M.E.S.) University of Calabria
- I-87036 Rende
| | - O. I. Parisi
- Department of Pharmacy
- Health and Nutritional Sciences
- University of Calabria
- I-87036 Rende
- Italy
| | - L. Scrivano
- Department of Pharmacy
- Health and Nutritional Sciences
- University of Calabria
- I-87036 Rende
- Italy
| | - D. Gabriele
- Department of Information
- Modelling
- Electronics and System Engineering
- (D.I.M.E.S.) University of Calabria
- I-87036 Rende
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