1
|
Comparative Study of Various Procedures for Extracting Doxorubicin from Animal Tissue Samples. SEPARATIONS 2022. [DOI: 10.3390/separations10010006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
This article presents a comparative study of selected deproteinization-, liquid–liquid-extraction- (LLE), and solid-phase-extraction (SPE)-based procedures for the isolation of doxorubicin (DOX) and daunorubicin (DAU) as an internal standard (IS) from rat tissue samples. During the experiments, all samples were analyzed via liquid chromatography coupled with fluorescence detection (LC-FL), with analytes being monitored at excitation and emission wavelengths of 487 and 555 nm, respectively. The absolute recoveries of the sample-preparation procedure were then calculated and compared, and the advantages and disadvantages of each approach were considered in depth. Ultimately, SPE with hydrophilic–lipophilic balanced (HLB) sorbents was selected as the most effective extraction procedure as it enabled the absolute recovery of DOX from tissue samples at a level of 91.6 ± 5.1%. Next, the selected HLB-SPE protocol was coupled with LC-FL separation and the resultant method was validated according to FDA and ICH requirements. The validation data confirmed that the developed procedure met all required criteria for bioanalytical methods, with a limit of detection (LOD) and limit of quantification (LOQ) of 0.005 µg/g and 0.01 µg/g, respectively. Finally, the developed protocol was successfully tested on various rat tissues enriched with DOX, confirming its potential as an interesting alternative to previously reported protocols for pharmacokinetic studies and clinical investigations aimed at analysis of the level and biodistribution of DOX in tissue samples after systemic administration of this drug.
Collapse
|
2
|
Manrique M, Akinbolue D, Madigan WP, Bregman J. Update on the Treatment of Retinoblastoma. Neoreviews 2021; 22:e423-e437. [PMID: 34210807 DOI: 10.1542/neo.22-7-e423] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Retinoblastoma (Rb) is the most common pediatric ocular malignancy and accounts for 2% of all childhood cancers. Rb is initiated by a mutation of the RB1 tumor suppressor gene and occurs in 2 forms: 1) unilateral and unifocal, characterized by a single tumor in 1 eye, and 2) bilateral or unilateral, multifocal Rb with multiple tumor foci in 1 or both eyes. Rb is a disease of young children and if left untreated can result in visual morbidity as well as systemic mortality. Fortunately, because of the greater availability of genetic testing and earlier diagnosis, novel targeted therapies, and multimodal treatment approaches, disease-free survival rates and visual prognoses have improved dramatically. Current efforts to expand the accessibility of the newest Rb treatments aim to improve Rb outcomes worldwide. In this article, we will review the clinical presentation, diagnosis, and management of Rb, with a focus on the newest treatment approaches.
Collapse
Affiliation(s)
| | | | - William P Madigan
- Department of Ophthalmology, Children's National Hospital, Washington, DC
| | - Jana Bregman
- Department of Ophthalmology, Greater Baltimore Medical Center, Towson, MD
| |
Collapse
|
3
|
Inclusive study for segregation of two commonly used anticancer drugs with tramadol: Applying a green fluorimetric strategy to pharmaceutical dosage forms and human plasma. Microchem J 2021. [DOI: 10.1016/j.microc.2020.105859] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|
4
|
Kim D, Lee H, Kwon S, Sung YJ, Song WK, Park S. Bilayer Hydrogel Sheet-Type Intraocular Microrobot for Drug Delivery and Magnetic Nanoparticles Retrieval. Adv Healthc Mater 2020; 9:e2000118. [PMID: 32431072 DOI: 10.1002/adhm.202000118] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2020] [Revised: 04/08/2020] [Indexed: 12/27/2022]
Abstract
By virtue of minimum invasiveness and driving ability using a magnetic field, drug delivery with the aid of a microrobot has an inherent potential for targeted treatment for the eye. The use of microrobots, however, has the limitation of leaving magnetic nanoparticles (MNPs) in the eye that can cause side effects. In this study, a bilayer hydrogel microrobot capable of retrieving MNPs after drug delivery is proposed that overcomes the limitations of existing microrobots. The bilayer hydrogel microrobot is composed of an MNPs layer and a therapeutic layer. Upon applying an alternating magnetic field (AMF) at the target point, the therapeutic layer is dissolved to deliver drug particles, and then the MNPs layer can be retrieved using a magnetic field. The targeting and MNPs retrieval tests validate the drug delivery and MNPs retrieval ability of the microrobot. The ex vivo bovine vitreous and in vitro cell tests demonstrate the potential for the vitreous migration of the microrobot and the therapeutic effect against retinoblastoma Y79 cancer cells. This bilayer hydrogel sheet-type intraocular microrobot provides a new drug delivery paradigm that overcomes the limitations of microrobot by maintaining the advantages of conventional microrobots in delivering drugs to the eye and retrieving MNPs after drug delivery.
Collapse
Affiliation(s)
- Dong‐In Kim
- Department of Robotics EngineeringDaegu Gyeongbuk Institute of Science and Technology Daegu 42988 Republic of Korea
| | - Hyoryong Lee
- Department of Robotics EngineeringDaegu Gyeongbuk Institute of Science and Technology Daegu 42988 Republic of Korea
| | - Su‐Hyun Kwon
- Department of Robotics EngineeringDaegu Gyeongbuk Institute of Science and Technology Daegu 42988 Republic of Korea
| | - Young Je Sung
- Department of OphthalmologyCHA Bundang Medical CenterCHA University College of Medicine Bundang‐gu Seongnam Gyunggido 13496 Republic of Korea
| | - Won Kyung Song
- Department of OphthalmologyCHA Bundang Medical CenterCHA University College of Medicine Bundang‐gu Seongnam Gyunggido 13496 Republic of Korea
| | - Sukho Park
- Department of Robotics EngineeringDaegu Gyeongbuk Institute of Science and Technology Daegu 42988 Republic of Korea
| |
Collapse
|
5
|
Optimization of LC method for the quantification of doxorubicin in plasma and urine samples in view of pharmacokinetic, biomedical and drug monitoring therapy studies. J Pharm Biomed Anal 2018; 158:376-385. [DOI: 10.1016/j.jpba.2018.06.031] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2018] [Revised: 06/18/2018] [Accepted: 06/19/2018] [Indexed: 11/23/2022]
|
6
|
Scheeren LE, Nogueira-Librelotto DR, Fernandes JR, Macedo LB, Marcolino AIP, Vinardell MP, Rolim CMB. Comparative Study of Reversed-Phase High-Performance Liquid Chromatography and Ultraviolet–Visible Spectrophotometry to Determine Doxorubicin in pH-Sensitive Nanoparticles. ANAL LETT 2018. [DOI: 10.1080/00032719.2017.1380034] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Laís E. Scheeren
- Departamento de Farmácia Industrial, Universidade Federal de Santa Maria, Santa Maria, Rio Grande do Sul, Brazil
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal de Santa Maria, Santa Maria, Rio Grande do Sul, Brazil
| | - Daniele R. Nogueira-Librelotto
- Departamento de Farmácia Industrial, Universidade Federal de Santa Maria, Santa Maria, Rio Grande do Sul, Brazil
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal de Santa Maria, Santa Maria, Rio Grande do Sul, Brazil
| | - Joana R. Fernandes
- Departamento de Farmácia Industrial, Universidade Federal de Santa Maria, Santa Maria, Rio Grande do Sul, Brazil
| | - Letícia B. Macedo
- Departamento de Farmácia Industrial, Universidade Federal de Santa Maria, Santa Maria, Rio Grande do Sul, Brazil
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal de Santa Maria, Santa Maria, Rio Grande do Sul, Brazil
| | - Ana Isa P. Marcolino
- Departamento de Farmácia Industrial, Universidade Federal de Santa Maria, Santa Maria, Rio Grande do Sul, Brazil
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal de Santa Maria, Santa Maria, Rio Grande do Sul, Brazil
| | - M. Pilar Vinardell
- Departament de Bioquimica I Fisiologia, Facultat de Farmàcia I Ciències de l’Alimentació, Universitat de Barcelona, Barcelona, Spain
| | - Clarice M. B. Rolim
- Departamento de Farmácia Industrial, Universidade Federal de Santa Maria, Santa Maria, Rio Grande do Sul, Brazil
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal de Santa Maria, Santa Maria, Rio Grande do Sul, Brazil
| |
Collapse
|
7
|
Guichard N, Guillarme D, Bonnabry P, Fleury-Souverain S. Antineoplastic drugs and their analysis: a state of the art review. Analyst 2017; 142:2273-2321. [DOI: 10.1039/c7an00367f] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
We provide an overview of the analytical methods available for the quantification of antineoplastic drugs in pharmaceutical formulations, biological and environmental samples.
Collapse
Affiliation(s)
- Nicolas Guichard
- Pharmacy
- Geneva University Hospitals (HUG)
- Geneva
- Switzerland
- School of Pharmaceutical Sciences
| | - Davy Guillarme
- School of Pharmaceutical Sciences
- University of Geneva
- University of Lausanne
- Geneva
- Switzerland
| | - Pascal Bonnabry
- Pharmacy
- Geneva University Hospitals (HUG)
- Geneva
- Switzerland
- School of Pharmaceutical Sciences
| | | |
Collapse
|
8
|
El-Kimary EI, El-Yazbi AF. An eco-friendly stability-indicating spectrofluorimetric method for the determination of two anticancer stereoisomer drugs in their pharmaceutical preparations following micellar enhancement: Application to kinetic degradation studies. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2016; 163:145-153. [PMID: 27045788 DOI: 10.1016/j.saa.2016.03.034] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2015] [Revised: 03/04/2016] [Accepted: 03/20/2016] [Indexed: 06/05/2023]
Abstract
A new rapid and highly sensitive stability-indicating spectrofluorimetric method was developed for the determination of two stereoisomers anticancer drugs, doxorubicin (DOX) and epirubicin (EPI) in pure form and in pharmaceutical preparations. The fluorescence spectral behavior of DOX and EPI in a sodium dodecyl sulfate (SDS) micellar system was investigated. It was found that the fluorescence intensity of DOX and EPI in an aqueous solution of phosphate buffer pH4.0 and in the presence of SDS was greatly (about two fold) enhanced and the mechanism of fluorescence enhancement effect of SDS on DOX was also investigated. The fluorescence intensity of DOX or EPI was measured at 553nm after excitation at 497nm. The plots of fluorescence intensity versus concentration were rectilinear over a range of 0.03-2μg/mL for both DOX and EPI with good correlation coefficient (r>0.999). High sensitivity to DOX and EPI was attained using the proposed method with limits of detection of 10 and 9ng/mL and limits of quantitation of 29 and 28ng/mL, for DOX and EPI, respectively. The method was successfully applied for the determination of DOX and EPI in biological fluids and in their commercial pharmaceutical preparations and the results were concordant with those obtained using a previously reported method. The application of the proposed method was extended to stability studies of DOX following different forced degradation conditions (acidic, alkaline, oxidative and photolytic) according to ICH guidelines. Moreover, the kinetics of the alkaline and oxidative degradation of DOX was investigated and the apparent first-order rate constants and half-life times were calculated.
Collapse
Affiliation(s)
- Eman I El-Kimary
- Faculty of Pharmacy, Department of Pharmaceutical Analytical Chemistry, University of Alexandria, El-Messalah, Alexandria 21521, Egypt.
| | - Amira F El-Yazbi
- Faculty of Pharmacy, Department of Pharmaceutical Analytical Chemistry, University of Alexandria, El-Messalah, Alexandria 21521, Egypt
| |
Collapse
|
9
|
Affiliation(s)
- Pia R. Mendoza
- Department of Ophthalmology, Emory University School of Medicine, Atlanta, Georgia
| | - Hans E. Grossniklaus
- Department of Ophthalmology, Emory University School of Medicine, Atlanta, Georgia
| |
Collapse
|
10
|
Zhang C, Wu Y, Dong Y, Xu H, Zhao L. Quantification of DOX bioavailability in biological samples of mice by sensitive and precise HPLC assay. PHARMACEUTICAL BIOLOGY 2016; 54:55-61. [PMID: 25880143 DOI: 10.3109/13880209.2015.1014918] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
CONTEXT Doxorubicin (DOX)-loaded folate-targeted poly(3-hydroxybutyrate-co-3-hydroxyoctanoate) [P(HB-HO)] nanoparticles [DOX/FA-PEG-P(HB-HO) NPs] were prepared by the W1/O/W2 solvent extraction/evaporation method for applications in cancer treatment. However, the biodistribution, pharmacokinetics, and targeting of the nanoparticles (NPs) have not yet been studied. OBJECTIVE The biodistribution, pharmacokinetics, and targeting of DOX/FA-PEG-P(HB-HO) NPs were evaluated in female BALB/c nude mice bearing HeLa tumors. MATERIALS AND METHODS Three DOX formulations were injected into the tail vein of the mice at a dosage of 5 mg/kg. At each time point, blood and various tissues were collected. All samples were then processed and analyzed by a validated high performance liquid chromatographic (HPLC) method. RESULTS The t1/2 values of DOX/P(HB-HO) NPs and DOX/FA-PEG-P(HB-HO) NPs were 2.7- and 3.5-times higher than that of free DOX. No significant difference (p > 0.05) was found in Cmax between the NPs and free DOX. The Tmax values of the two NPs were prolonged from 0.25 to 1 h. The AUC0-t values were 1.55- and 3.05-folds higher than that of free DOX, and MRT increased to 15.99 h for DOX/P(HB-HO) NPs and 25.14 h for DOX/FA-PEG-P(HB-HO) NPs. For DOX/FA-PEG-P(HB-HO) NPs, the DOX content in the tumors were 10.81- and 3.33-times higher than those for free DOX and DOX/P(HB-HO) NPs at 48 h, respectively. DISCUSSION AND CONCLUSIONS DOX/FA-PEG-P(HB-HO) NPs displayed reduced cardiac toxicity and improved bioavailability. Moreover, the NPs exhibited a significant extent of DOX accumulation in the tumors, thus suggesting that folate-targeted NPs could effectively transport into HeLa tumors with satisfying targeting.
Collapse
MESH Headings
- Animals
- Antibiotics, Antineoplastic/administration & dosage
- Antibiotics, Antineoplastic/blood
- Antibiotics, Antineoplastic/chemistry
- Antibiotics, Antineoplastic/pharmacokinetics
- Antibiotics, Antineoplastic/toxicity
- Area Under Curve
- Biological Availability
- Cardiotoxicity
- Chemistry, Pharmaceutical
- Chromatography, High Pressure Liquid
- Doxorubicin/administration & dosage
- Doxorubicin/blood
- Doxorubicin/chemistry
- Doxorubicin/pharmacokinetics
- Doxorubicin/toxicity
- Drug Carriers
- Drug Monitoring/methods
- Female
- Folic Acid/chemistry
- Folic Acid/metabolism
- Half-Life
- HeLa Cells
- Heart Diseases/chemically induced
- Humans
- Injections, Intravenous
- Metabolic Clearance Rate
- Mice, Inbred BALB C
- Mice, Nude
- Nanoparticles
- Polyesters/chemistry
- Risk Assessment
- Tissue Distribution
- Uterine Cervical Neoplasms/drug therapy
- Uterine Cervical Neoplasms/metabolism
- Xenograft Model Antitumor Assays
Collapse
Affiliation(s)
- Chan Zhang
- a School of Environment and Safety, Taiyuan University of Science and Technology , Taiyuan , China
| | - Yifan Wu
- b College of Life Science, Shanxi University , Taiyuan , China , and
| | - Yuefeng Dong
- c Shanxi Institute of Medicine and Life Science , Taiyuan , China
| | - Hongying Xu
- a School of Environment and Safety, Taiyuan University of Science and Technology , Taiyuan , China
| | - Liangqi Zhao
- b College of Life Science, Shanxi University , Taiyuan , China , and
| |
Collapse
|
11
|
Bhavsar D, Subramanian K, Sethuraman S, Krishnan UM. Management of retinoblastoma: opportunities and challenges. Drug Deliv 2015; 23:2488-2496. [PMID: 25758593 DOI: 10.3109/10717544.2015.1016193] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Nano-delivery systems have significantly evolved over the last decade for the treatment of cancer by enabling site-specific delivery and improved bioavailability. The widely investigated nanoparticle systems are biodegradable polyesters, dendrimers, liposomes, mesoporous silica and gold nanoparticles. These particles when conjugated with different targeting motifs enhance the therapeutic efficiency of the drug molecules and biocompatibility. However, the application of such systems towards the treatment of retinoblastoma (RB), a rapidly spreading childhood eye cancer, still remains in its infancy. Nanoparticle-based systems that have been investigated for RB therapy have displayed improved drug delivery to the most restricted posterior segment of the eyes and have increased intra-vitreal half-life of the chemotherapy agents highlighting its potential in treatment of this form of cancer. This review focuses on the challenges involved in the treatment of RB and highlights the attempts made to develop nano-dimensional systems for the treatment of RB.
Collapse
Affiliation(s)
- Dhiraj Bhavsar
- a School of Chemical & Biotechnology, Centre for Nanotechnology & Advanced Biomaterials, Sastra University , Thanjavur , Tamil Nadu , India and
| | - Krishnakumar Subramanian
- b L&T Ophthalmic Pathology Department , Vision Research Foundation , Sankara Nethralaya , Chennai , Tamil Nadu , India
| | - Swaminathan Sethuraman
- a School of Chemical & Biotechnology, Centre for Nanotechnology & Advanced Biomaterials, Sastra University , Thanjavur , Tamil Nadu , India and
| | - Uma Maheswari Krishnan
- a School of Chemical & Biotechnology, Centre for Nanotechnology & Advanced Biomaterials, Sastra University , Thanjavur , Tamil Nadu , India and
| |
Collapse
|
12
|
MBUNA J, KANETA T. Capillary Electrophoresis with Laser-induced Fluorescence Detection for Application in Intracellular Investigation of Anthracyclines and Multidrug Resistance Proteins. ANAL SCI 2015; 31:1121-8. [DOI: 10.2116/analsci.31.1121] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- Julius MBUNA
- Dar es Salaam University College of Education, Department of Chemistry
| | - Takashi KANETA
- Department of Chemistry, Graduate School of Natural Science and Technology, Okayama University
| |
Collapse
|
13
|
Fernandes BF, Nikolitch K, Coates J, Novais G, Odashiro A, Odashiro PP, Belfort RN, Burnier MN. Local chemotherapeutic agents for the treatment of ocular malignancies. Surv Ophthalmol 2013; 59:97-114. [PMID: 24112549 DOI: 10.1016/j.survophthal.2013.01.003] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2012] [Revised: 01/24/2013] [Accepted: 01/29/2013] [Indexed: 11/30/2022]
Abstract
We critically analyze available peer-reviewed literature, including clinical trials and case reports, on local ocular cancer treatments. Recent innovations in many areas of ocular oncology have introduced promising new therapies, but, for the most part, the optimal treatment of ocular malignancies remains elusive.
Collapse
Affiliation(s)
- Bruno F Fernandes
- Department of Ophthalmology and Pathology, The McGill University Health Center, and Henry C. Witelson Ocular Pathology Laboratory, Montreal, Canada.
| | - Katerina Nikolitch
- Department of Ophthalmology and Pathology, The McGill University Health Center, and Henry C. Witelson Ocular Pathology Laboratory, Montreal, Canada
| | - James Coates
- Department of Ophthalmology and Pathology, The McGill University Health Center, and Henry C. Witelson Ocular Pathology Laboratory, Montreal, Canada
| | - Gustavo Novais
- Department of Ophthalmology and Pathology, The McGill University Health Center, and Henry C. Witelson Ocular Pathology Laboratory, Montreal, Canada
| | - Alexandre Odashiro
- Department of Ophthalmology and Pathology, The McGill University Health Center, and Henry C. Witelson Ocular Pathology Laboratory, Montreal, Canada
| | - Patricia P Odashiro
- Department of Ophthalmology and Pathology, The McGill University Health Center, and Henry C. Witelson Ocular Pathology Laboratory, Montreal, Canada
| | - Rubens N Belfort
- Department of Ophthalmology and Pathology, The McGill University Health Center, and Henry C. Witelson Ocular Pathology Laboratory, Montreal, Canada
| | - Miguel N Burnier
- Department of Ophthalmology and Pathology, The McGill University Health Center, and Henry C. Witelson Ocular Pathology Laboratory, Montreal, Canada
| |
Collapse
|
14
|
Alhareth K, Vauthier C, Gueutin C, Ponchel G, Moussa F. HPLC quantification of doxorubicin in plasma and tissues of rats treated with doxorubicin loaded poly(alkylcyanoacrylate) nanoparticles. J Chromatogr B Analyt Technol Biomed Life Sci 2012; 887-888:128-32. [DOI: 10.1016/j.jchromb.2012.01.025] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2011] [Revised: 01/12/2012] [Accepted: 01/22/2012] [Indexed: 11/30/2022]
|
15
|
Mains J, Tan LE, Wilson C, Urquhart A. A pharmacokinetic study of a combination of beta adrenoreceptor antagonists - in the isolated perfused ovine eye. Eur J Pharm Biopharm 2011; 80:393-401. [PMID: 22120686 DOI: 10.1016/j.ejpb.2011.11.006] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2011] [Revised: 10/17/2011] [Accepted: 11/10/2011] [Indexed: 11/27/2022]
Abstract
The treatment of posterior eye diseases, such as diabetic retinopathy and age-related macular degeneration, is of growing interest as the number of people affected by these conditions continues to rise. This study utilises the methods of cassette dosing and the perfused ovine eye model - to reduce animal usage and therefore animal time - to show that for a series of beta adrenoreceptor antagonists, lipophilicity is a key physicochemical property that governs drug distribution within the eye. Following intravitreal injection, lipophilic beta adrenoreceptor antagonists penetrate to the posterior eye, where they bind to the choroid and reside in the retina at greater concentrations than more hydrophilic beta adrenoreceptor antagonists, which preferentially penetrate to the anterior eye.
Collapse
Affiliation(s)
- Jenifer Mains
- Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, Scotland, United Kingdom
| | | | | | | |
Collapse
|
16
|
Analysis of anticancer drugs: a review. Talanta 2011; 85:2265-89. [PMID: 21962644 DOI: 10.1016/j.talanta.2011.08.034] [Citation(s) in RCA: 316] [Impact Index Per Article: 24.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2011] [Revised: 08/15/2011] [Accepted: 08/16/2011] [Indexed: 01/05/2023]
Abstract
In the last decades, the number of patients receiving chemotherapy has considerably increased. Given the toxicity of cytotoxic agents to humans (not only for patients but also for healthcare professionals), the development of reliable analytical methods to analyse these compounds became necessary. From the discovery of new substances to patient administration, all pharmaceutical fields are concerned with the analysis of cytotoxic drugs. In this review, the use of methods to analyse cytotoxic agents in various matrices, such as pharmaceutical formulations and biological and environmental samples, is discussed. Thus, an overview of reported analytical methods for the determination of the most commonly used anticancer drugs is given.
Collapse
|
17
|
Rezaei B, Saghebdoust M, Sorkhe AM, Majidi N. Generation of a doxorubicin immunosensor based on a specific monoclonal antibody-nanogold-modified electrode. Electrochim Acta 2011. [DOI: 10.1016/j.electacta.2011.04.038] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
18
|
Degim IT, Burgess DJ, Papadimitrakopoulos F. Carbon nanotubes for transdermal drug delivery. J Microencapsul 2010; 27:669-81. [DOI: 10.3109/02652048.2010.506581] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
|
19
|
Zheng Y, Zhou F, Wu X, Wen X, Li Y, Yan B, Zhang J, Hao G, Ye W, Wang G. 23-Hydroxybetulinic acid from Pulsatilla chinensis (Bunge) Regel synergizes the antitumor activities of doxorubicin in vitro and in vivo. JOURNAL OF ETHNOPHARMACOLOGY 2010; 128:615-622. [PMID: 20176097 DOI: 10.1016/j.jep.2010.02.004] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2009] [Revised: 12/15/2009] [Accepted: 02/11/2010] [Indexed: 05/28/2023]
Abstract
UNLABELLED ETHNOPHARMACOLOGICAL REVELANCE: Pulsatilla chinensis (Bunge)Regel has been used as adjuvant in chemotherapy in traditional Chinese medicine. 23-Hydroxybetulinic acid, an isolated pentacyclic triterpene, is the major active constituent of Pulsatilla chinensis (Bunge) Regel. AIM OF THIS STUDY To evaluate the combinational anticancer effect of 23-hydroxybetulinic acid and doxorubicin in vitro and in vivo. MATERIALS AND METHODS The effect of combination treatment with 23-hydroxybetulinic acid and doxorubicin was evaluated with a quantitative combination index method based on the median-effect analysis in various cancer cell lines. And in vivo efficacy of combination chemotherapy was also evaluated using ICR mice bearing sarcoma 180 carcinoma tumors. RESULTS 23-Hydroxybetulinic acid showed a synergistic cytotoxic effect on multiple cancer cell lines by combined use with doxorubicin. In vivo studies further demonstrated that co-administration of 23-HBA significantly improved the sensitivity of the tumor to doxorubicin through increasing intra-tumor doxorubicin concentration and inhibiting doxorubicin-induced up-regulation of P-gp in tumor. CONCLUSION These results suggest that the combined therapy with 23-hydroxybetulinic acid and doxorubicin may be a new promising strategy to promote the clinical chemotherapy, which needs further verification.
Collapse
Affiliation(s)
- Yuanting Zheng
- Key Laboratory of Drug Metabolism and Pharmacokinetics, China Pharmaceutical University, Nanjing 210009, Jiangsu, China
| | | | | | | | | | | | | | | | | | | |
Collapse
|
20
|
Al-Abd AM, Kim NH, Song SC, Lee SJ, Kuh HJ. A simple HPLC method for doxorubicin in plasma and tissues of nude mice. Arch Pharm Res 2009; 32:605-11. [PMID: 19407979 DOI: 10.1007/s12272-009-1417-5] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2008] [Revised: 02/18/2009] [Accepted: 03/24/2009] [Indexed: 11/25/2022]
Abstract
Doxorubicin is a cytotoxic anthracycline that has been used for the treatment of several malignancies. Several HPLC methods have been reported for the quantification of doxorubicin in biological samples. Tissue matrix effect and sample size requirements, however, have been remaining issues for simple and easy-to-adapt analytical methods in small animal experiments. The present study established a simple HPLC method for doxorubicin in plasma and tissues (tumor, heart, spleen, liver, gastrointestinal tract, brain, lung, and kidney) of nude mice. Our method required a small sample volume (100 microL plasma and 10 mg tissue), which made it possible to use each blank tissue for calibration curves. The limit of quantification was 25 ng/mL in plasma and 0.1 to 0.4 microg/mg in other tissues with recovery rates ranging from 52.4 to 95.2%. The linearity, accuracy and precision in all tissues, except gastrointestinal tract (GIT), were found to be acceptable in the range of 25-2000 ng/mL plasma and 0.1-4 ng/mg tissue. This method was used successfully to determine the drug concentration in plasma and tissues of human tumor xenograft-bearing nude mice given intratumoral doxorubicin in a polymeric drug delivery system designed for sustained release. In conclusion, the present method may be useful as a simple and easy-to-adapt, yet, sensitive analytical method of doxorubicin for plasma and tissue pharmacokinetic studies in small animals such as nude mice.
Collapse
Affiliation(s)
- Ahmed M Al-Abd
- Department of Biomedical Sciences, College of Medicine, The Catholic University of Korea, Seoul, 137-701, Korea
| | | | | | | | | |
Collapse
|
21
|
Human scleral diffusion of anticancer drugs from solution and nanoparticle formulation. Pharm Res 2009; 26:1155-61. [PMID: 19194787 DOI: 10.1007/s11095-009-9835-0] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2008] [Accepted: 01/14/2009] [Indexed: 10/21/2022]
Abstract
PURPOSE To determine the transscleral permeability of chemotherapeutic drugs vinblastine and doxorubicin for treatment of intraocular tumors, and to compare the use of doxorubicin encapsulated in PLGA and liposome nanoparticles. METHODS Human sclera was isolated and mounted in a Lucite chamber. Fluorescently tagged vinblastine (VIN), innately fluorescent free doxorubicin (DOX), PLGA doxorubicin (PLGA-DOX), or Doxil (Tibotec Therapeutics) were added to the episcleral donor chamber. The choroidal side was perfused with Balanced Salt Solution. Perfusate fractions were collected over 24 h and measured for fluorescence. Following the experiment, tissue sections were imaged, underwent a drug wash out procedure, and tissue drug content was analyzed using an LC-MS/MS method. RESULTS Within 24 h, a total of 68%, 74%, 29%, and 1.9% of the drug dose from VIN, DOX, PLGA-DOX, and Doxil, respectively, diffused across the sclera. VIN and DOX scleral tissue showed strong fluorescence after 24 h. PLGA-DOX displayed scattered fluorescence, and Doxil indicated minimal fluorescence. LC-MS/MS revealed strong tissue binding of DOX. CONCLUSIONS This study suggests both vinblastine and doxorubicin are able to diffuse across human sclera. In addition, PLGA nanoparticles delivered doxorubicin at a slower rate across the sclera, and the liposome preparation resulted in the slowest delivery of drug.
Collapse
|
22
|
Wei G, Xiao S, Si D, Liu C. Improved HPLC method for doxorubicin quantification in rat plasma to study the pharmacokinetics of micelle-encapsulated and liposome-encapsulated doxorubicin formulations. Biomed Chromatogr 2008; 22:1252-8. [DOI: 10.1002/bmc.1054] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
|
23
|
Kaur IP, Rana C, Singh H. Development of Effective Ocular Preparations of Antifungal Agents. J Ocul Pharmacol Ther 2008; 24:481-93. [DOI: 10.1089/jop.2008.0031] [Citation(s) in RCA: 79] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Indu Pal Kaur
- University Institute of Pharmaceutical Sciences, Panjab University, Chandigarh, India
| | - Cheena Rana
- University Institute of Pharmaceutical Sciences, Panjab University, Chandigarh, India
| | - Harinder Singh
- University Institute of Pharmaceutical Sciences, Panjab University, Chandigarh, India
| |
Collapse
|