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Kouznetsov VV. Exploring acetaminophen prodrugs and hybrids: a review. RSC Adv 2024; 14:9691-9715. [PMID: 38525062 PMCID: PMC10958773 DOI: 10.1039/d4ra00365a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2024] [Accepted: 03/17/2024] [Indexed: 03/26/2024] Open
Abstract
This critical review highlights the advances in developing new molecules for treating pain syndrome, an important issue for human health. Acetaminophen (APAP, known as paracetamol) and nonsteroidal anti-inflammatory drugs (NSAIDs) are commonly used in clinical practice despite their adverse effects. Research is being conducted to develop innovative drugs with improved pharmaceutical properties to mitigate these effects. A more practical way to achieve that is to study well-known and time-tested drugs in their molecular combinations. Accordingly, the present work explores APAP and their combined chemical entities, i.e., prodrugs (soft drugs), codrugs (mutual prodrugs), and hybrids. Due to their molecular structure, APAP prodrugs or codrugs could be considered merged or conjugated hybrids; all these names are very fluid terms. This article proposed a structural classification of these entities to better analyze their advances. So, the following: carrier-linked O-modified APAP, -linked N-modified APAP derivatives (prodrugs), and direct- and spacer-N,O-linked APAP hybrids (codrugs) are the central parts of this review and are examined, especially ester and amide NSAID-APAP molecules. The C-linked APAP and nitric oxide (NO)-releasing APAP hybrids were also briefly discussed. Prime examples of APAP-based drugs such as propacetamol, benorylate, acetaminosalol, nitroparacetamol, and agent JNJ-10450232 weave well into this classification. The proposed classification is the first and original, giving a better understanding of the SAR studies for new pain relievers research and the design development for the analgesic APAP-(or NSAID)-based compounds.
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Affiliation(s)
- Vladimir V Kouznetsov
- Laboratorio de Química Orgánica y Biomolecular, Escuela de Química, Universidad Industrial de Santander Cl. 9 # Cra 27 A.A. 680006 Bucaramanga Colombia
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2
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Gao J, Chapman J. Discovery and Characterization of Novel Naphthalimide Analogs as Potent Multitargeted Directed Ligands against Alzheimer's Disease. Drug Dev Res 2020. [PMID: 32548880 DOI: 10.1002/ddr.21708] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2020] [Revised: 04/20/2020] [Accepted: 05/29/2020] [Indexed: 12/29/2022]
Abstract
Current therapeutic drugs for Alzheimer's disease (AD) can only offer limited symptomatic benefits and do not halt disease progression. Multitargeted directed ligands (MTDLs) have been considered to be a feasible way to treat AD due to the multiple neuropathological processes in AD. Previous studies proposed that compounds containing two aromatic groups connected by a carbon chain should act as effective amyloid β (Aβ) aggregation inhibitors although the optimal length of the carbon chain has not been explored. In the current study, a series of naphthalimide analogs were designed and synthesized based on the proposed structure and multiple bioactivities beneficial to the AD treatment were reported. In vitro studies showed that compound 8, which has two aromatic groups connected by a two-carbon chain, exhibited significant inhibition of Aβ aggregation through the prevention of elongation and association of Aβ fibril growth. Furthermore, this compound also displayed antioxidative activities and neuroprotection from Aβ monomer induced toxicity in primary cortical neurons. The results of the present study highlight a novel naphthalimide-based compound 8 as a promising MTDL against AD. Its structural elements can be further explored for enhanced therapeutic capabilities.
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Affiliation(s)
- Jie Gao
- Department of Clinical and Diagnostic Science, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - James Chapman
- Department of Discovery and Biomedical Sciences, University of South Carolina, Columbia, South Carolina, USA
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3
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Pires de Mello CP, Carmona-Moran C, McAleer CW, Perez J, Coln EA, Long CJ, Oleaga C, Riu A, Note R, Teissier S, Langer J, Hickman JJ. Microphysiological heart-liver body-on-a-chip system with a skin mimic for evaluating topical drug delivery. LAB ON A CHIP 2020; 20:749-759. [PMID: 31970354 PMCID: PMC7123528 DOI: 10.1039/c9lc00861f] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
Body-on-a-chip in vitro systems are a promising technology that aims to increase the predictive power of drug efficacy and toxicity in humans when compared to traditional animal models. Here, we developed a new heart-liver body-on-a-chip system with a skin surrogate to assess the toxicity of drugs that are topically administered. In order to test the utility of the system, diclofenac, ketoconazole, hydrocortisone and acetaminophen were applied topically through a synthetic skin surrogate (Strat-M membrane) and the toxicity results were compared to those of acute drug exposure from systemically applying the compounds. The heart-liver system was successful in predicting the effects for both cardiac and liver functions changes due to the compounds. The difference in the concentrations of drugs applied topically compared to systemically indicates that the barrier properties of the skin surrogate were efficient. One important advantage of this heart-liver system was the capability of showing differential effects of acute and chronic drug exposure which is necessary as part of the International Conference in Harmonisation (ICH) tri-partate guidelines. In conclusion, this work indicates a promising heart-liver body-on-a-chip system that can be used for the assessment of potential drug toxicity from dermal absorption as well as evaluate transport dynamics through the skin in the same system.
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Affiliation(s)
| | - Carlos Carmona-Moran
- NanoScience Technology Center, University of Central Florida, Orlando, FL 32826, USA.
| | | | - Julian Perez
- NanoScience Technology Center, University of Central Florida, Orlando, FL 32826, USA.
| | - Elizabeth A Coln
- NanoScience Technology Center, University of Central Florida, Orlando, FL 32826, USA.
| | | | - Carlota Oleaga
- NanoScience Technology Center, University of Central Florida, Orlando, FL 32826, USA.
| | - Anne Riu
- L'Oreal Research, and Innovation Division, Aulnay-sous-Bois, France
| | - Reine Note
- L'Oreal Research, and Innovation Division, Aulnay-sous-Bois, France
| | - Silvia Teissier
- L'Oreal Research, and Innovation Division, Aulnay-sous-Bois, France
| | - Jessica Langer
- L'Oreal Research, and Innovation Division, Clark, NJ, USA
| | - James J Hickman
- NanoScience Technology Center, University of Central Florida, Orlando, FL 32826, USA. and Hesperos, Inc., Orlando, FL 32826, USA
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4
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Huigens RW, Abouelhassan Y, Yang H. Phenazine Antibiotic-Inspired Discovery of Bacterial Biofilm-Eradicating Agents. Chembiochem 2019; 20:2885-2902. [PMID: 30811834 PMCID: PMC7325843 DOI: 10.1002/cbic.201900116] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2019] [Indexed: 12/19/2022]
Abstract
Bacterial biofilms are surface-attached communities of slow-growing and non-replicating persister cells that demonstrate high levels of antibiotic tolerance. Biofilms occur in nearly 80 % of infections and present unique challenges to our current arsenal of antibiotic therapies, all of which were initially discovered for their abilities to target rapidly dividing, free-floating planktonic bacteria. Bacterial biofilms are credited as the underlying cause of chronic and recurring bacterial infections. Innovative approaches are required to identify new small molecules that operate through bacterial growth-independent mechanisms to effectively eradicate biofilms. One source of inspiration comes from within the lungs of young cystic fibrosis (CF) patients, who often endure persistent Staphylococcus aureus infections. As these CF patients age, Pseudomonas aeruginosa co-infects the lungs and utilizes phenazine antibiotics to eradicate the established S. aureus infection. Our group has taken a special interest in this microbial competition strategy and we are investigating the potential of phenazine antibiotic-inspired compounds and synthetic analogues thereof to eradicate persistent bacterial biofilms. To discover new biofilm-eradicating agents, we have established an interdisciplinary research program involving synthetic medicinal chemistry, microbiology and molecular biology. From these efforts, we have identified a series of halogenated phenazines (HPs) that potently eradicate bacterial biofilms, and future work aims to translate these preliminary findings into ground-breaking clinical advances for the treatment of persistent biofilm infections.
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Affiliation(s)
- Robert W. Huigens
- Department of Medicinal Chemistry; Center for Natural Products Drug Discovery and Development (CNPD3); University of Florida, Gainesville, FL, USA
| | - Yasmeen Abouelhassan
- Department of Medicinal Chemistry; Center for Natural Products Drug Discovery and Development (CNPD3); University of Florida, Gainesville, FL, USA
| | - Hongfen Yang
- Department of Medicinal Chemistry; Center for Natural Products Drug Discovery and Development (CNPD3); University of Florida, Gainesville, FL, USA
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5
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Yellepeddi VK, Zhudeva MY, Movahedi F, Vo A, Phan J, Kirsh RD, Rawlins DB, Talbot JN. Biopharmaceutical Characterization and Oral Efficacy of a New Rapid Acting Antidepressant Ro 25-6981. J Pharm Sci 2018; 107:2472-2478. [PMID: 29800545 DOI: 10.1016/j.xphs.2018.05.005] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2018] [Revised: 05/14/2018] [Accepted: 05/16/2018] [Indexed: 12/25/2022]
Abstract
Ro 25-6981 is a highly potent and selective blocker of N-methyl-d-aspartate receptors that has been shown to possess both rapid and sustained antidepressant activity. In the present study, we report the biopharmaceutical characterization of Ro 25-6981 by evaluating gastrointestinal stability, transepithelial permeability, stability in human liver microsomes, and in silico metabolic prediction. Moreover, in vivo efficacy of Ro 25-6981 after oral administration was evaluated in animal models of depression. When mixed with 5 different simulated gastrointestinal fluids, no loss of parent compound was observed after 6 h, indicating compound stability in the gastrointestinal environment. At the tested concentrations, Ro 25-6981 was shown to have transepithelial permeability with apparent permeability (Papp) values comparable to highly permeable drugs. Ro 25-6981 was metabolized within 30 min in human liver microsomes, and the metabolic prediction data showed glucuronidation and sulfation as potential metabolic pathways. The in vivo efficacy data suggested that Ro 25-6981, when administered orally at 30 mg/kg, exhibits antidepressant-like activity following oral administration with efficacy comparable to traditional antidepressants that is both dose- and time-dependent. Overall, due to optimal gastrointestinal stability, oral permeability, and oral efficacy, Ro 25-6981 can be a potential therapeutic option for the treatment of depression.
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Affiliation(s)
- Venkata K Yellepeddi
- Division of Clinical Pharmacology, Department of Pediatrics, University of Utah, Salt Lake City, Utah 84112; Utah Center for Nanomedicine, Nano Institute of Utah, University of Utah, Salt Lake City, Utah 84112; Department of Pharmaceutics and Pharmaceutical Chemistry, University of Utah, Salt Lake City, Utah 84112.
| | - Maryia Y Zhudeva
- College of Pharmacy, Roseman University of Health Sciences, South Jordan, Utah 84095
| | - Fereshteh Movahedi
- College of Pharmacy, Roseman University of Health Sciences, South Jordan, Utah 84095
| | - Annh Vo
- College of Pharmacy, Roseman University of Health Sciences, South Jordan, Utah 84095
| | - Julie Phan
- College of Pharmacy, Roseman University of Health Sciences, South Jordan, Utah 84095
| | - Robert D Kirsh
- Comparative Medicine Unit, Roseman University of Health Sciences, South Jordan, Utah 84095
| | - David B Rawlins
- College of Pharmacy, Roseman University of Health Sciences, South Jordan, Utah 84095; Research Center on Substance Abuse and Depression, Roseman University of Health Sciences, Henderson, Nevada 89014
| | - Jeffery N Talbot
- College of Pharmacy, Roseman University of Health Sciences, South Jordan, Utah 84095; Research Center on Substance Abuse and Depression, Roseman University of Health Sciences, Henderson, Nevada 89014
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6
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Fu WC, So CM, Yuen OY, Lee ITC, Kwong FY. Exploiting Aryl Mesylates and Tosylates in Catalytic Mono-α-arylation of Aryl- and Heteroarylketones. Org Lett 2016; 18:1872-5. [PMID: 27046738 DOI: 10.1021/acs.orglett.6b00643] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The first general palladium catalyst for the catalytic mono-α-arylation of aryl- and heteroarylketones with aryl mesylates and tosylates is described. The newly developed indolyl-derived phosphine ligand L7 has been identified to promote this reaction efficiently. The key to success is attributed to the enhanced steric congestion of the catalyst and effective oxidative addition of the C(Ar)-OMs bond. In the presence of Pd(OAc)2 (0.25-2.5 mol %) and L7, selective monoarylations are achieved with ample reaction scope and product yields up to 95%. Importantly, we demonstrated the applicability of this protocol with the modification of biological phenolic compounds, rendering it amenable for functionalization of phenolic (pro)drugs.
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Affiliation(s)
- Wai Chung Fu
- State Key Laboratory of Chirosciences and Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University , Hung Hom, Kowloon, Hong Kong
| | - Chau Ming So
- State Key Laboratory of Chirosciences and Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University , Hung Hom, Kowloon, Hong Kong
| | - On Ying Yuen
- State Key Laboratory of Chirosciences and Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University , Hung Hom, Kowloon, Hong Kong
| | - Irene Toi Chuk Lee
- State Key Laboratory of Chirosciences and Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University , Hung Hom, Kowloon, Hong Kong
| | - Fuk Yee Kwong
- State Key Laboratory of Chirosciences and Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University , Hung Hom, Kowloon, Hong Kong
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7
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Abstract
Prodrugs continue to attract significant interest in the transdermal drug delivery field. These moieties can confer favorable physicochemical properties on transdermal drug delivery candidates. Alkyl chain lengthening, pegylation are some of the strategies used for prodrug synthesis. It is usually important to optimize partition coefficient, water and oil solubilities of drugs. In this review, progress made in the field of prodrugs for percutaneous penetration is highlighted and the challenges discussed.
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Affiliation(s)
- Kevin B Ita
- a Department of Biological and Pharmaceutical Sciences , College of Pharmacy, Touro University California , Vallejo , CA , USA
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8
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Majumdar S, Mueller-Spaeth M, Sloan KB. Prodrugs of theophylline incorporating ethyleneoxy groups in the promoiety: synthesis, characterization, and transdermal delivery. AAPS PharmSciTech 2012; 13:853-62. [PMID: 22648150 DOI: 10.1208/s12249-012-9803-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2011] [Accepted: 05/11/2012] [Indexed: 11/30/2022] Open
Abstract
Two different types of derivatives of theophylline (Th-H) incorporating ethyleneoxy groups into the promoiety have been synthesized. One is a soft alkyl type where N-methyl-N-methoxyethyleneoxycarbonylaminomethyl chlorides have been used to alkylate Th-H in the 7 position. The other is in an acyl type where methoxyethyleneoxycarbonyl chlorides have been used to acylate Th-H in the 7 position. All of the prodrugs were more soluble in the lipid isopropyl myristate (IPM) than Th-H, and three were more soluble in water (AQ) than Th-H. The most water-soluble prodrug gave the highest maximum delivery of total species containing Th-H through hairless mouse skin from IPM (maximum flux, J(MMIPM))-more than seven times that of Th-H, while the other two gave more than three times that of Th-H. The acyl-type prodrugs delivered only Th-H, while the soft alkyl types delivered 60-70% Th-H plus intact prodrug. The Roberts-Sloan equation was able to predict the best performer for each type with an average of the absolute difference between the experimental log J (MMIPM) and calculated log J (MMIPM) (Δlog J (MMIPM)) of 0.253 log units. The values for the present prodrugs and previously reported prodrugs that had not been previously included in the Roberts-Sloan data base (n = 23) were included in the previous n = 71 data base to give n = 94. New coefficients for the Roberts-Sloan equation have been obtained.
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9
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Milewski M, Stinchcomb AL. Estimation of maximum transdermal flux of nonionized xenobiotics from basic physicochemical determinants. Mol Pharm 2012; 9:2111-20. [PMID: 22702370 PMCID: PMC3460035 DOI: 10.1021/mp300146m] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
An ability to estimate the maximum flux of a xenobiotic across skin is desirable from the perspective of both drug delivery and toxicology. While there is an abundance of mathematical models describing the estimation of drug permeability coefficients, there are relatively few that focus on the maximum flux. This article reports and evaluates a simple and easy-to-use predictive model for the estimation of maximum transdermal flux of xenobiotics based on three common molecular descriptors: logarithm of octanol-water partition coefficient, molecular weight and melting point. The use of all three can be justified on the theoretical basis of their influence on the solute aqueous solubility and the partitioning into the stratum corneum lipid domain. The model explains 81% of the variability in the permeation data set composed of 208 entries and can be used to obtain a quick estimate of maximum transdermal flux when experimental data is not readily available.
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Affiliation(s)
- Mikolaj Milewski
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Kentucky, Lexington, KY 40536-0082, USA
| | - Audra L. Stinchcomb
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Kentucky, Lexington, KY 40536-0082, USA
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10
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Procopio A, Celia C, Nardi M, Oliverio M, Paolino D, Sindona G. Lipophilic hydroxytyrosol esters: fatty acid conjugates for potential topical administration. JOURNAL OF NATURAL PRODUCTS 2011; 74:2377-2381. [PMID: 22014120 DOI: 10.1021/np200405s] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Hydroxytyrosol is a potent antioxidant natural molecule isolated from olive leaves and fruits. The presence of three hydroxy groups in its structure poses a limit for the topical application of this lead compound. A set of hydroxytyrosol conjugates with fatty acids at different molecular weights were synthesized under mild conditions. The topical delivery features of this new set of antioxidant molecules were evaluated as a function of their permeation profiles through the human stratum corneum and viable epidermis membranes. A dependence on their partition coefficients, their molecular weights, and their isometric configurations was then postulated. Encouraging results prompt further investigations on the polyfunctional role that hydroxytyrosol conjugates could have as agents in both anti-inflammatory and antioxidant therapies.
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Affiliation(s)
- Antonio Procopio
- Dipartimento Farmacobiologico, Università Magna Græcia di Catanzaro Complesso Ninì Barbieri, 88021, Roccelletta di Borgia (CZ), Italy.
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Devarajan-Ketha H, Sloan K. N , N ′-Dialkylaminoalkylcarbonyl (DAAC) prodrugs and aminoalkylcarbonyl (AAC) prodrugs of 4-hydroxyacetanilide and naltrexone with improved skin permeation properties. Bioorg Med Chem Lett 2011; 21:4078-82. [DOI: 10.1016/j.bmcl.2011.04.118] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2010] [Revised: 04/21/2011] [Accepted: 04/25/2011] [Indexed: 11/27/2022]
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12
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Paudel KS, Milewski M, Swadley CL, Brogden NK, Ghosh P, Stinchcomb AL. Challenges and opportunities in dermal/transdermal delivery. Ther Deliv 2010; 1:109-31. [PMID: 21132122 PMCID: PMC2995530 DOI: 10.4155/tde.10.16] [Citation(s) in RCA: 337] [Impact Index Per Article: 24.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Transdermal drug delivery is an exciting and challenging area. There are numerous transdermal delivery systems currently available on the market. However, the transdermal market still remains limited to a narrow range of drugs. Further advances in transdermal delivery depend on the ability to overcome the challenges faced regarding the permeation and skin irritation of the drug molecules. Emergence of novel techniques for skin permeation enhancement and development of methods to lessen skin irritation would widen the transdermal market for hydrophilic compounds, macromolecules and conventional drugs for new therapeutic indications. As evident from the ongoing clinical trials of a wide variety of drugs for various clinical conditions, there is a great future for transdermal delivery of drugs.
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Affiliation(s)
- Kalpana S Paudel
- College of Pharmacy, University of Kentucky, Lexington, KY 40536-0200, USA
| | - Mikolaj Milewski
- College of Pharmacy, University of Kentucky, Lexington, KY 40536-0200, USA
| | - Courtney L Swadley
- College of Pharmacy, University of Kentucky, Lexington, KY 40536-0200, USA
| | - Nicole K Brogden
- College of Pharmacy, University of Kentucky, Lexington, KY 40536-0200, USA
| | - Priyanka Ghosh
- College of Pharmacy, University of Kentucky, Lexington, KY 40536-0200, USA
| | - Audra L Stinchcomb
- College of Pharmacy, University of Kentucky, Lexington, KY 40536-0200, USA
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13
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Milewski M, Yerramreddy TR, Ghosh P, Crooks PA, Stinchcomb AL. In vitro permeation of a pegylated naltrexone prodrug across microneedle-treated skin. J Control Release 2010; 146:37-44. [PMID: 20678989 DOI: 10.1016/j.jconrel.2010.05.034] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2010] [Revised: 05/18/2010] [Accepted: 05/27/2010] [Indexed: 10/19/2022]
Abstract
Microneedles (MN) are a useful tool for increasing skin permeability to xenobiotics. Previous research showed marked improvement in the percutaneous flux of naltrexone (NTX) hydrochloride by the use of MN skin pretreatment alone; however, for better therapeutic effect, further enhancement is desired. The goal of this in vitro study was to combine microneedle skin pretreatment with the use of a highly water-soluble PEGylated naltrexone prodrug (polyethyleneglycol-NTX, PEG-NTX) to investigate its transdermal transport at varying concentrations. Solubility and stability of the prodrug were investigated. In vitro diffusion experiments employing MN-treated minipig skin were used to evaluate the performance of the PEGylated prodrug. The results revealed substantial deviation from ideal behavior, with the flux through MN-treated skin having a nonlinear relationship to the prodrug concentration in the donor solution. While in the lower concentration range tested the prodrug flux increase was proportional to the concentration increase, at high concentrations it showed no such dependence. Accounting for the decrease in the effective prodrug diffusivity accompanying the increase in viscosity, as predicted by the Stokes-Einstein equation, provided a rationale for the observed flux values. Increasing the viscosity of the donor solution is hypothesized to afford a curvilinear permeation profile for the PEGylated NTX prodrug.
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Affiliation(s)
- Mikolaj Milewski
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Kentucky, Lexington, KY 40536-0082, USA
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14
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Yerramreddy TR, Milewski M, Penthala NR, Stinchcomb AL, Crooks PA. Novel 3-O-pegylated carboxylate and 3-O-pegylated carbamate prodrugs of naltrexone for microneedle-enhanced transdermal delivery. Bioorg Med Chem Lett 2010; 20:3280-3. [PMID: 20451376 PMCID: PMC3726000 DOI: 10.1016/j.bmcl.2010.04.049] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2010] [Accepted: 04/12/2010] [Indexed: 11/27/2022]
Abstract
A small library of novel 3-O-pegylated carboxylate prodrugs (4a-4b) and 3-O-pegylated carbamate prodrugs (9a-9b) of naltrexone were synthesized. The goal behind the design of these prodrugs was to investigate their potential for microneedle-enhanced transdermal delivery. All the synthesized 3-O-pegylated carboxylate prodrugs (4a-4b) and 3-O-pegylated carbamate prodrugs (9a-9b) of naltrexone were found to have adequate stability in a transdermal formulation and improved apparent solubility compared to naltrexone. Viscosity effects were postulated to be responsible for the observed non-linearity in the flux-concentration profile of these prodrugs.
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Affiliation(s)
| | - Mikolaj Milewski
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Kentucky, Lexington, KY 40536
| | - Narsimha Reddy Penthala
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Kentucky, Lexington, KY 40536
| | - Audra L. Stinchcomb
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Kentucky, Lexington, KY 40536
| | - Peter A. Crooks
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Kentucky, Lexington, KY 40536
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