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Lee T, Kim KS, Na K. Intracellular pH-Regulating Nanoparticles to Improve Anticancer Drug Efficacy for Cancer Treatment. Biomacromolecules 2022; 23:4786-4794. [PMID: 36223489 DOI: 10.1021/acs.biomac.2c00952] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Here, we describe an intracellular pH-regulating nanoparticle (IPRN), coencapsulated with chemosensitizers and anticancer agents for effective and safe cancer treatment. IPRN contains a tubulysin derivative (TUB), a hydrophobic anticancer drug, and pantoprazole (PTZ), a hydrophilic proton-pump inhibitor. IPRN with a size of 62 nm has an anionic surface charge and is stable for at least two weeks under storage conditions, though PTZ and TUB encapsulated in IPRN showed different drug release patterns. PTZ was released before TUB, controlling the cancer's intracellular pH, maintaining a pH at which TUB can work well. The encapsulated PTZ increased the pH of endolysosomes and inhibited ion trapping, with TUB ionization, thereby exhibiting increased cytotoxicity compared with free TUB observed in various cancer cell lines, such as human liver adenocarcinoma, human glioblastoma, and human pancreatic carcinoma. IPRN exhibited a 1.9-fold improved tumor growth inhibitory effect in a human liver adenocarcinoma-bearing mouse model, while minimizing the hepatotoxicity of free TUB. Thus, nanomedicines that contain both a chemosensitizer and an anticancer agent, such as IPRN, are expected to be next-generation anticancer agents that reduce the side effects of anticancer drugs and increase the therapeutic effect.
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Affiliation(s)
- Taebum Lee
- Department of Biotechnology, The Catholic University of Korea, 43 Jibong-ro, Wonmi-gu, Bucheon-si, Gyeonggi-do14662, Republic of Korea.,Department of BioMedical-Chemical Engineering, The Catholic University of Korea, 43 Jibong-ro, Wonmi-gu, Bucheon-si, Gyeonggi-do14662, Republic of Korea
| | - Kyoung Sub Kim
- Department of Biotechnology, The Catholic University of Korea, 43 Jibong-ro, Wonmi-gu, Bucheon-si, Gyeonggi-do14662, Republic of Korea
| | - Kun Na
- Department of Biotechnology, The Catholic University of Korea, 43 Jibong-ro, Wonmi-gu, Bucheon-si, Gyeonggi-do14662, Republic of Korea.,Department of BioMedical-Chemical Engineering, The Catholic University of Korea, 43 Jibong-ro, Wonmi-gu, Bucheon-si, Gyeonggi-do14662, Republic of Korea
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Kempin W, Domsta V, Brecht I, Semmling B, Tillmann S, Weitschies W, Seidlitz A. Development of a dual extrusion printing technique for an acid- and thermo-labile drug. Eur J Pharm Sci 2018; 123:191-198. [PMID: 30031859 DOI: 10.1016/j.ejps.2018.07.041] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Revised: 05/31/2018] [Accepted: 07/18/2018] [Indexed: 12/12/2022]
Abstract
Over the last years fused deposition modeling has been increasingly considered as a game-changing technique for the preparation of individualized pharmaceutical products. Until now investigations have mainly focused on dosage forms loaded with very stable drugs or model substances. Going beyond this early stage of research, developers will also have to deal with more challenging active substances. In this work different printing designs for tablets containing the acid- and thermo-labile drug pantoprazole sodium were tested. Initial dual extrusion printing of a cellulose acetate phthalate coat and a tablet core of polyethylene glycol 6000 with 10% (m/m) pantoprazole sodium resulted in thermal degradation of pantoprazole at cellulose acetate phthalate printing temperatures of 141 °C. Therefore, different tablet designs were developed. The sectioning of the design of the tablet coat in a gastro-resistant cellulose acetate phthalate bottom part and an upper nearly insoluble polycaprolactone part printed at only 58 °C was suitable to prevent visible signs of thermal degradation. Dissolution testing indicated also no drug loss during dual extrusion printing. However, printed enteric tablets with shell thicknesses of 0.4 to 0.5 mm were not completely gastro-resistant. Drug release at intestinal pH values was delayed compared to uncoated cores. In conclusion, 3D-printing of gastro-resistant tablets containing thermo- and acid-labile drugs seems in principle possible. However, it remains an unsolved challenge to meet United States Pharmacopeia requirements.
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Affiliation(s)
- Wiebke Kempin
- Institute of Pharmacy, Center of Drug Absorption and Transport, University of Greifswald, 17487 Greifswald, Germany
| | - Vanessa Domsta
- Institute of Pharmacy, Center of Drug Absorption and Transport, University of Greifswald, 17487 Greifswald, Germany
| | - Iris Brecht
- Takeda GmbH, Plant Oranienburg, 16515 Oranienburg, Germany
| | | | - Susan Tillmann
- Takeda Pharmaceuticals International AG Zürich, 8152 Glattpark, Switzerland
| | - Werner Weitschies
- Institute of Pharmacy, Center of Drug Absorption and Transport, University of Greifswald, 17487 Greifswald, Germany
| | - Anne Seidlitz
- Institute of Pharmacy, Center of Drug Absorption and Transport, University of Greifswald, 17487 Greifswald, Germany.
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pH triggered controlled drug delivery from contact lenses: Addressing the challenges of drug leaching during sterilization and storage. Colloids Surf B Biointerfaces 2017; 157:72-82. [DOI: 10.1016/j.colsurfb.2017.05.064] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2017] [Revised: 05/24/2017] [Accepted: 05/25/2017] [Indexed: 12/21/2022]
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Akyuz L, Sargin I, Kaya M, Ceter T, Akata I. A new pollen-derived microcarrier for pantoprazole delivery. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 71:937-942. [DOI: 10.1016/j.msec.2016.11.009] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2016] [Revised: 10/13/2016] [Accepted: 11/02/2016] [Indexed: 11/28/2022]
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Amorphous polymeric binary blend pH-responsive nanoparticles for dissolution enhancement of antiviral drug. JOURNAL OF SAUDI CHEMICAL SOCIETY 2016. [DOI: 10.1016/j.jscs.2012.09.020] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Polymeric vehicles for topical delivery and related analytical methods. Arch Pharm Res 2014; 37:423-34. [DOI: 10.1007/s12272-014-0342-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2013] [Accepted: 01/22/2014] [Indexed: 10/25/2022]
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Bioequivalence Study of Pantoprazole Sodium-HPBCD and Conventional Pantoprazole Sodium Enteric-Coated Tablet Formulations. ISRN PHARMACOLOGY 2013; 2013:347457. [PMID: 23476803 PMCID: PMC3582054 DOI: 10.1155/2013/347457] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/26/2012] [Accepted: 01/11/2013] [Indexed: 11/17/2022]
Abstract
The objective of this study was to investigate the bioequivalence of two formulations of 40 mg pantoprazole sodium enteric-coated tablets: Tripepsa as the test and Pantocid as the reference. The two products were administered as a single oral dose according to a randomized two-phase crossover with a 1-month washout period in 25 healthy Indian volunteers. After drug administration, serial blood samples were collected over a period of 30 hours. Plasma pantoprazole concentrations were measured by high-performance liquid chromatography with UV detection. Pharmacokinetic parameters were analyzed based on noncompartmental analysis. The logarithmically transformed data of AUC0-∞ and Cmax were analyzed for 90% confidence intervals (CI) using ANOVA. The mean (90% CI) values for the ratio of AUC0-∞ and Cmax values of the test product over those of the reference product were 90.21 (83.69-97.24) and 108.68 (100.21-117.86), respectively (within the bioequivalence range of 80-125%). On the basis of pharmacokinetic parameters including AUC0-∞ , AUC0-t , and Cmax values, both the formulations were bioequivalent.
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Pohlmann AR, Fonseca FN, Paese K, Detoni CB, Coradini K, Beck RCR, Guterres SS. Poly(ϵ-caprolactone) microcapsules and nanocapsules in drug delivery. Expert Opin Drug Deliv 2013; 10:623-38. [DOI: 10.1517/17425247.2013.769956] [Citation(s) in RCA: 154] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Cook MT, Saratoon T, Tzortzis G, Edwards A, Charalampopoulos D, Khutoryanskiy VV. CLSM method for the dynamic observation of pH change within polymer matrices for oral delivery. Biomacromolecules 2013; 14:387-93. [PMID: 23301617 DOI: 10.1021/bm301569r] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
If acid-sensitive drugs or cells are administered orally, there is often a reduction in efficacy associated with gastric passage. Formulation into a polymer matrix is a potential method to improve their stability. The visualization of pH within these materials may help better understand the action of these polymer systems and allow comparison of different formulations. We herein describe the development of a novel confocal laser-scanning microscopy (CLSM) method for visualizing pH changes within polymer matrices and demonstrate its applicability to an enteric formulation based on chitosan-coated alginate gels. The system in question is first shown to protect an acid-sensitive bacterial strain to low pH, before being studied by our technique. Prior to this study, it has been claimed that protection by these materials is a result of buffering, but this has not been demonstrated. The visualization of pH within these matrices during exposure to a pH 2.0 simulated gastric solution showed an encroachment of acid from the periphery of the capsule, and a persistence of pHs above 2.0 within the matrix. This implies that the protective effect of the alginate-chitosan matrices is most likely due to a combination of buffering of acid as it enters the polymer matrix and the slowing of acid penetration.
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Affiliation(s)
- Michael T Cook
- Department of Food and Nutritional Sciences and ‡Reading School of Pharmacy, University of Reading, Reading, United Kingdom
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Barakat NS, Shazly GA, Almedany AH. Influence of polymer blends on the characterization of gliclazide – encapsulated into poly (Æ-caprolactone) microparticles. Drug Dev Ind Pharm 2012; 39:352-62. [DOI: 10.3109/03639045.2012.681383] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Alhnan MA, Kidia E, Basit AW. Spray-drying enteric polymers from aqueous solutions: A novel, economic, and environmentally friendly approach to produce pH-responsive microparticles. Eur J Pharm Biopharm 2011; 79:432-9. [DOI: 10.1016/j.ejpb.2011.03.015] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2011] [Revised: 03/12/2011] [Accepted: 03/16/2011] [Indexed: 11/28/2022]
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Ghorab DM, Amin MM, Khowessah OM, Tadros MI. Colon-targeted celecoxib-loaded Eudragit®S100-coated poly-ϵ-caprolactone microparticles: Preparation, characterization andin vivoevaluation in rats. Drug Deliv 2011; 18:523-35. [DOI: 10.3109/10717544.2011.595841] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
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pH-sensitive Eudragit nanoparticles for mucosal drug delivery. Int J Pharm 2011; 403:262-7. [DOI: 10.1016/j.ijpharm.2010.10.032] [Citation(s) in RCA: 107] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2010] [Revised: 10/11/2010] [Accepted: 10/18/2010] [Indexed: 11/19/2022]
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Barakat NS, Al-Suwayeh SA, Taha EI, Bakry Yassin AE. A new pressure-controlled colon delivery capsule for chronotherapeutic treatment of nocturnal asthma. J Drug Target 2010; 19:365-72. [PMID: 20681754 DOI: 10.3109/1061186x.2010.504264] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
The purpose of this study was to prepare a pressure-controlled colon delivery capsule (PCDC) containing theophylline (TPH) dispersion in a lipid matrix as a chronotherapeutic drug delivery system for the treatment of nocturnal asthma. The system was made by film coating using Eudragit S100- based formula over the sealed-hard gelatin capsules containing the drug-lipid dispersion. The lipid formula was composed mainly of Gelucire 33/01 (G33) with different ratios of surfactants (1-10%). The efficiency of the prepared system was evaluated in vitro for its ability to withstand both the gastric and intestinal medium. In addition, the drug plasma concentrations were monitored after single administration to Beagle dogs and compared to that obtained after administration of a reference marketed, generic, sustained-release TPH tablets, Avolen(®) SR. It was found that the optimum lipid formula was GL2 containing 90% G33 and 10% Labrasol. The film-coated capsules showed complete resistance to both the acidic environment (pH 1.2) for 2 hours and phosphate buffer pH 6.8 for 3 hours at 37°C. In vivo evaluation of the TPH-based PCDCs showed longer lag time compared TO the marketed formula followed by sudden increase in TPH blood levels, which recommends the high potential of this system as a chronotherapeutic drug delivery for nocturnal asthma. The prepared PCDCs exhibited a significantly higher C(max) and T(max) and a nonsignificantly different AUC compared with Avolen(®) SR. Higher TPH blood levels from 1 to 8 hours postadministration was detected in the case of the prepared PCDCs.
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Affiliation(s)
- Nahla S Barakat
- Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
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Silva I, Gurruchaga M, Goñi I. Physical blends of starch graft copolymers as matrices for colon targeting drug delivery systems. Carbohydr Polym 2009. [DOI: 10.1016/j.carbpol.2008.11.026] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Physical chemistry behavior of enteric polymer in drug release systems. Int J Pharm 2009; 366:185-9. [DOI: 10.1016/j.ijpharm.2008.08.041] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2008] [Revised: 08/24/2008] [Accepted: 08/26/2008] [Indexed: 11/20/2022]
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