1
|
Gamal A, Fikry E, Tawfeek N, El-Shafae AM, El-Sayed ASA, El-Domiaty MM. Production and bioprocessing of Taxol from Aspergillus niger, an endophyte of Encephalartos whitelockii, with a plausible biosynthetic stability: antiproliferative activity and cell cycle analysis. Microb Cell Fact 2024; 23:78. [PMID: 38475853 DOI: 10.1186/s12934-024-02356-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2024] [Accepted: 03/04/2024] [Indexed: 03/14/2024] Open
Abstract
The biosynthetic potency of Taxol by fungi raises their prospective to be a platform for commercial production of Taxol, nevertheless, the attenuation of its productivity with the fungal storage, is the challenge. Thus, screening for a novel fungal isolate inhabiting ethnopharmacological plants, with a plausible metabolic stability for Taxol production could be one of the most affordable approaches. Aspergillus niger OR414905.1, an endophyte of Encephalartos whitelockii, had the highest Taxol productivity (173.9 μg/L). The chemical identity of the purified Taxol was confirmed by HPLC, FTIR, and LC-MS/MS analyses, exhibiting the same molecular mass (854.5 m/z) and molecular fragmentation pattern of the authentic Taxol. The purified Taxol exhibited a potent antiproliferative activity against HepG-2, MCF-7 and Caco-2, with IC50 values 0.011, 0.016, and 0.067 μM, respectively, in addition to a significant activity against A. flavus, as a model of human fungal pathogen. The purified Taxol displayed a significant effect against the cellular migration of HepG-2 and MCF-7 cells, by ~ 52-59% after 72 h, compared to the control, confirming its interference with the cellular matrix formation. Furthermore, the purified Taxol exhibited a significant ability to prompt apoptosis in MCF-7 cells, by about 11-fold compared to control cells, suppressing their division at G2/M phase. Taxol productivity by A. niger has been optimized by the response surface methodology with Plackett-Burman Design and Central Composite Design, resulting in a remarkable ~ 1.6-fold increase (279.8 μg/L), over the control. The biological half-life time of Taxol productivity by A. niger was ~ 6 months of preservation at 4 ℃, however, the Taxol yield by A. niger was partially restored in response to ethyl acetate extracts of E. whitelockii, ensuring the presence of plant-derived signals that triggers the cryptic Taxol encoding genes.
Collapse
Affiliation(s)
- Asmaa Gamal
- Pharmacognosy Department, Faculty of Pharmacy, Zagazig University, Zagazig, 44519, Egypt
| | - Eman Fikry
- Pharmacognosy Department, Faculty of Pharmacy, Zagazig University, Zagazig, 44519, Egypt
| | - Nora Tawfeek
- Pharmacognosy Department, Faculty of Pharmacy, Zagazig University, Zagazig, 44519, Egypt
| | - Azza M El-Shafae
- Pharmacognosy Department, Faculty of Pharmacy, Zagazig University, Zagazig, 44519, Egypt
| | - Ashraf S A El-Sayed
- Enzymology and Fungal Biotechnology Lab, Botany and Microbiology Department, Faculty of Science, Zagazig University, Zagazig, 44519, Egypt.
| | - Maher M El-Domiaty
- Pharmacognosy Department, Faculty of Pharmacy, Zagazig University, Zagazig, 44519, Egypt
| |
Collapse
|
2
|
Bordat A, Boissenot T, Ibrahim N, Ferrere M, Levêque M, Potiron L, Denis S, Garcia-Argote S, Carvalho O, Abadie J, Cailleau C, Pieters G, Tsapis N, Nicolas J. A Polymer Prodrug Strategy to Switch from Intravenous to Subcutaneous Cancer Therapy for Irritant/Vesicant Drugs. J Am Chem Soc 2022; 144:18844-18860. [PMID: 36193551 PMCID: PMC9585574 DOI: 10.1021/jacs.2c04944] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
![]()
Chemotherapy is almost exclusively administered via the
intravenous
(IV) route, which has serious limitations (e.g., patient discomfort,
long hospital stays, need for trained staff, high cost, catheter failures,
infections). Therefore, the development of effective and less costly
chemotherapy that is more comfortable for the patient would revolutionize
cancer therapy. While subcutaneous (SC) administration has the potential
to meet these criteria, it is extremely restrictive as it cannot be
applied to most anticancer drugs, such as irritant or vesicant ones,
for local toxicity reasons. Herein, we report a facile, general, and
scalable approach for the SC administration of anticancer drugs through
the design of well-defined hydrophilic polymer prodrugs. This was
applied to the anticancer drug paclitaxel (Ptx) as a worst-case scenario
due to its high hydrophobicity and vesicant properties (two factors
promoting necrosis at the injection site). After a preliminary screening
of well-established polymers used in nanomedicine, polyacrylamide
(PAAm) was chosen as a hydrophilic polymer owing to its greater physicochemical,
pharmacokinetic, and tumor accumulation properties. A small library
of Ptx-based polymer prodrugs was designed by adjusting the nature
of the linker (ester, diglycolate, and carbonate) and then evaluated
in terms of rheological/viscosity properties in aqueous solutions,
drug release kinetics in PBS and in murine plasma, cytotoxicity on
two different cancer cell lines, acute local and systemic toxicity,
pharmacokinetics and biodistribution, and finally their anticancer
efficacy. We demonstrated that Ptx-PAAm polymer prodrugs could be
safely injected subcutaneously without inducing local toxicity while
outperforming Taxol, the commercial formulation of Ptx, thus opening
the door to the safe transposition from IV to SC chemotherapy.
Collapse
Affiliation(s)
- Alexandre Bordat
- Université Paris-Saclay, CNRS, Institut Galien Paris-Saclay, 91400 Orsay, France
| | - Tanguy Boissenot
- Université Paris-Saclay, CNRS, Institut Galien Paris-Saclay, 91400 Orsay, France
| | - Nada Ibrahim
- Université Paris-Saclay, CNRS, Institut Galien Paris-Saclay, 91400 Orsay, France
| | - Marianne Ferrere
- Université Paris-Saclay, CNRS, Institut Galien Paris-Saclay, 91400 Orsay, France
| | - Manon Levêque
- Université Paris-Saclay, CNRS, Institut Galien Paris-Saclay, 91400 Orsay, France
| | - Léa Potiron
- Imescia, Université Paris-Saclay, 91400 Saclay, France
| | - Stéphanie Denis
- Université Paris-Saclay, CNRS, Institut Galien Paris-Saclay, 91400 Orsay, France
| | - Sébastien Garcia-Argote
- Département Médicaments et Technologies pour la Santé (DMTS), SCBM, Université Paris-Saclay, CEA, INRAE, Gif-sur-Yvette F-91191, France
| | - Olivia Carvalho
- Département Médicaments et Technologies pour la Santé (DMTS), SCBM, Université Paris-Saclay, CEA, INRAE, Gif-sur-Yvette F-91191, France
| | - Jérôme Abadie
- Laboniris, Départment de Biology, Pathologie et Sciences de l'Aliment, Oniris, F-44307 Nantes, France
| | - Catherine Cailleau
- Université Paris-Saclay, CNRS, Institut Galien Paris-Saclay, 91400 Orsay, France
| | - Grégory Pieters
- Département Médicaments et Technologies pour la Santé (DMTS), SCBM, Université Paris-Saclay, CEA, INRAE, Gif-sur-Yvette F-91191, France
| | - Nicolas Tsapis
- Université Paris-Saclay, CNRS, Institut Galien Paris-Saclay, 91400 Orsay, France
| | - Julien Nicolas
- Université Paris-Saclay, CNRS, Institut Galien Paris-Saclay, 91400 Orsay, France
| |
Collapse
|
3
|
Box–Behnken Design-Based Development and Validation of a Reverse-Phase HPLC Analytical Method for the Estimation of Paclitaxel in Cationic Liposomes. Chromatographia 2022. [DOI: 10.1007/s10337-022-04172-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
AbstractStability-indicating reverse-phase HPLC analytical method for the quantification of Paclitaxel (PTX) in the bulk and cationic liposomes was developed. The optimized method was validated according to the ICH Q2 (R1) guidelines by following a 2-level–4-factor interaction Box–Behnken design using Design-Expert® software. The responses measured at 228 nm were retention time (Rt), peak area, tailing factor (Tf10%), and the number of theoretical plates (NTP). PTX was eluted best using the Luna® C18 LC Column along with a mobile phase of methanol and 25 mM ammonium acetate buffer (pH 6) 75:25 v/v mixture at 25 ± 2 °C temperature. The currently developed method was linear in the 2.5–100 µg/mL range with a detection limit of 0.062 µg/mL and a quantification limit of 0.188 µg/mL. The optimized method was utilized to evaluate the stability of PTX in different stress conditions by performing forced degradation studies. The results from the degradation study stipulated that on exposure to various stressors, namely acid, alkali, oxidative, thermal, and UV light, the PTX did not show considerable degradation except alkali exposure. Further, the method was successfully used for the quantification of PTX in cationic liposomes. The particle size, zeta potential, and polydispersity index of the PTX-loaded liposomes were 219.25 ± 7.566 nm, 57.15 ± 12.374 mV, and 0.807 ± 0.1958 respectively. The percent of drug entrapped was quantified and was found to be 59 ± 1.414%.
Collapse
|
4
|
Fernández Y, Movellan J, Foradada L, Giménez V, García‐Aranda N, Mancilla S, Armiñán A, Borgos SE, Hyldbakk A, Bogdanska A, Gobbo OL, Prina‐Mello A, Ponti J, Calzolai L, Zagorodko O, Gallon E, Niño‐Pariente A, Paul A, Schwartz Jr S, Abasolo I, Vicent MJ. In Vivo Antitumor and Antimetastatic Efficacy of a Polyacetal-Based Paclitaxel Conjugate for Prostate Cancer Therapy. Adv Healthc Mater 2022; 11:e2101544. [PMID: 34706167 DOI: 10.1002/adhm.202101544] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Revised: 09/25/2021] [Indexed: 12/12/2022]
Abstract
Prostate cancer (PCa), one of the leading causes of cancer-related deaths, currently lacks effective treatment for advanced-stage disease. Paclitaxel (PTX) is a highly active chemotherapeutic drug and the first-line treatment for PCa; however, conventional PTX formulation causes severe hypersensitivity reactions and limits PTX use at high concentrations. In the pursuit of high molecular weight, biodegradable, and pH-responsive polymeric carriers, one conjugates PTX to a polyacetal-based nanocarrier to yield a tert-Ser-PTX polyacetal conjugate. tert-Ser-PTX conjugate provides sustained release of PTX over 2 weeks in a pH-responsive manner while also obtaining a degree of epimerization of PTX to 7-epi-PTX. Serum proteins stabilize tert-Ser-PTX, with enhanced stability in human serum versus PBS (pH 7.4). In vitro efficacy assessments in PCa cells demonstrate IC50 values above those for the free form of PTX due to the differential cell trafficking modes; however, in vivo tolerability assays demonstrate that tert-Ser-PTX significantly reduces the systemic toxicities associated with free PTX treatment. tert-Ser-PTX also effectively inhibits primary tumor growth and hematologic, lymphatic, and coelomic dissemination, as confirmed by in vivo and ex vivo bioluminescence imaging and histopathological evaluations in mice carrying orthotopic LNCaP tumors. Overall, the results suggest the application of tert-Ser-PTX as a robust antitumor/antimetastatic treatment for PCa.
Collapse
Affiliation(s)
- Yolanda Fernández
- Functional Validation & Preclinical Research (FVPR) CIBBIM‐Nanomedicine Vall d'Hebron Institut de Recerca (VHIR) Universitat Autònoma de Barcelona (UAB) Barcelona 08035 Spain
- Drug Delivery & Targeting Group CIBBIM‐Nanomedicine Vall d'Hebron Institut de Recerca (VHIR) Universitat Autònoma de Barcelona (UAB) Barcelona 08035 Spain
- Networking Research Center on Bioengineering Biomaterials and Nanomedicine (CIBER‐BBN) Barcelona 08035 Spain
| | - Julie Movellan
- Polymer Therapeutics Laboratory. Centro de Investigación Príncipe Felipe. Av. Eduardo Primo Yúfera 3 Valencia 46012 Spain
| | - Laia Foradada
- Functional Validation & Preclinical Research (FVPR) CIBBIM‐Nanomedicine Vall d'Hebron Institut de Recerca (VHIR) Universitat Autònoma de Barcelona (UAB) Barcelona 08035 Spain
- Drug Delivery & Targeting Group CIBBIM‐Nanomedicine Vall d'Hebron Institut de Recerca (VHIR) Universitat Autònoma de Barcelona (UAB) Barcelona 08035 Spain
- Networking Research Center on Bioengineering Biomaterials and Nanomedicine (CIBER‐BBN) Barcelona 08035 Spain
| | - Vanessa Giménez
- Polymer Therapeutics Laboratory. Centro de Investigación Príncipe Felipe. Av. Eduardo Primo Yúfera 3 Valencia 46012 Spain
| | - Natalia García‐Aranda
- Functional Validation & Preclinical Research (FVPR) CIBBIM‐Nanomedicine Vall d'Hebron Institut de Recerca (VHIR) Universitat Autònoma de Barcelona (UAB) Barcelona 08035 Spain
- Drug Delivery & Targeting Group CIBBIM‐Nanomedicine Vall d'Hebron Institut de Recerca (VHIR) Universitat Autònoma de Barcelona (UAB) Barcelona 08035 Spain
- Networking Research Center on Bioengineering Biomaterials and Nanomedicine (CIBER‐BBN) Barcelona 08035 Spain
| | - Sandra Mancilla
- Functional Validation & Preclinical Research (FVPR) CIBBIM‐Nanomedicine Vall d'Hebron Institut de Recerca (VHIR) Universitat Autònoma de Barcelona (UAB) Barcelona 08035 Spain
- Drug Delivery & Targeting Group CIBBIM‐Nanomedicine Vall d'Hebron Institut de Recerca (VHIR) Universitat Autònoma de Barcelona (UAB) Barcelona 08035 Spain
- Networking Research Center on Bioengineering Biomaterials and Nanomedicine (CIBER‐BBN) Barcelona 08035 Spain
| | - Ana Armiñán
- Polymer Therapeutics Laboratory. Centro de Investigación Príncipe Felipe. Av. Eduardo Primo Yúfera 3 Valencia 46012 Spain
| | - Sven Even Borgos
- Department of Biotechnology and Nanomedicine SINTEF Industry Trondheim NO‐7465 Norway
| | - Astrid Hyldbakk
- Department of Biotechnology and Nanomedicine SINTEF Industry Trondheim NO‐7465 Norway
| | - Anna Bogdanska
- Laboratory for Biological Characterization of Advanced Materials (LBCAM) Trinity Translational Medicine Institute Trinity College Dublin Dublin D08 W9RT Ireland
- Trinity St James's Cancer Institute Trinity College Dublin the University of Dublin Dublin D08 W9RT Ireland
| | - Oliviero L. Gobbo
- Trinity St James's Cancer Institute Trinity College Dublin the University of Dublin Dublin D08 W9RT Ireland
- School of Pharmacy and Pharmaceutical Sciences Trinity College Dublin Dublin D02 R590 Ireland
| | - Adriele Prina‐Mello
- Laboratory for Biological Characterization of Advanced Materials (LBCAM) Trinity Translational Medicine Institute Trinity College Dublin Dublin D08 W9RT Ireland
- Trinity St James's Cancer Institute Trinity College Dublin the University of Dublin Dublin D08 W9RT Ireland
| | - Jessica Ponti
- European Commission Joint Research Centre (JRC) via Fermi 2749 Ispra 21027 Italy
| | - Luigi Calzolai
- European Commission Joint Research Centre (JRC) via Fermi 2749 Ispra 21027 Italy
| | - Oleksandr Zagorodko
- Polymer Therapeutics Laboratory. Centro de Investigación Príncipe Felipe. Av. Eduardo Primo Yúfera 3 Valencia 46012 Spain
| | - Elena Gallon
- Polymer Therapeutics Laboratory. Centro de Investigación Príncipe Felipe. Av. Eduardo Primo Yúfera 3 Valencia 46012 Spain
| | - Amaya Niño‐Pariente
- Polymer Therapeutics Laboratory. Centro de Investigación Príncipe Felipe. Av. Eduardo Primo Yúfera 3 Valencia 46012 Spain
| | - Alison Paul
- School of Chemistry Cardiff University Main Building, Park Place Cardiff CF10 3AT UK
| | - Simó Schwartz Jr
- Drug Delivery & Targeting Group CIBBIM‐Nanomedicine Vall d'Hebron Institut de Recerca (VHIR) Universitat Autònoma de Barcelona (UAB) Barcelona 08035 Spain
- Networking Research Center on Bioengineering Biomaterials and Nanomedicine (CIBER‐BBN) Barcelona 08035 Spain
| | - Ibane Abasolo
- Functional Validation & Preclinical Research (FVPR) CIBBIM‐Nanomedicine Vall d'Hebron Institut de Recerca (VHIR) Universitat Autònoma de Barcelona (UAB) Barcelona 08035 Spain
- Drug Delivery & Targeting Group CIBBIM‐Nanomedicine Vall d'Hebron Institut de Recerca (VHIR) Universitat Autònoma de Barcelona (UAB) Barcelona 08035 Spain
- Networking Research Center on Bioengineering Biomaterials and Nanomedicine (CIBER‐BBN) Barcelona 08035 Spain
| | - María J. Vicent
- Polymer Therapeutics Laboratory. Centro de Investigación Príncipe Felipe. Av. Eduardo Primo Yúfera 3 Valencia 46012 Spain
| |
Collapse
|
5
|
Noorbasha K, Shaik AR. Determination of residual solvents in paclitaxel by headspace gas chromatography. FUTURE JOURNAL OF PHARMACEUTICAL SCIENCES 2021. [DOI: 10.1186/s43094-021-00186-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Abstract
Background
A simple and sensitive gas chromatographic method was developed and validated for the simultaneous determination of methanol, ethanol, acetone, isopropyl alcohol, dichloromethane, N-hexane, ethyl acetate, tetrahydrofuran, and N,N-diisopropyl ethyl amine in Paclitaxel. A chromatographic separation was done on DB-624 column, 30 m length × 0.53 mm ID, and film thickness 3 μm, using a flame ionization detector (FID) with gradient column oven temperature program. The injection was carried out in split mode, with a split ratio of 5:1. A mixture of N-methyl-2-pyrrolidinone (contains 1% piperazine) and water in the ratio of 80:20 (v/v) was selected as a diluent to obtain good sensitivity along with the recovery.
Results
The developed gas chromatographic method offers symmetric peak shape, good resolution of more than 2.0 between the solvent peaks, and the relative standard deviation for replicate injections of all the solvents were found to be not more than 15.0% with reasonable retention time for all the solvents. The limit of detection for methanol, ethanol, acetone, isopropyl alcohol, dichloromethane, N-hexane, ethyl acetate, tetrahydrofuran, and N,N-diisopropyl ethyl amine was found to be 304.69 ppm, 497.98 ppm, 498.99 ppm, 504.49 ppm, 61.81 ppm, 30.07 ppm, 505 ppm, 73.05 ppm, and 2.09 ppm, respectively. Limit of quantitation of methanol, ethanol, acetone, isopropyl alcohol, dichloromethane, N-hexane, ethyl acetate, tetrahydrofuran, and N,N-diisopropyl ethyl amine was found to be 89.62 ppm, 146.47 ppm, 146.76 ppm, 148.38 ppm, 18.18 ppm, 8.84 ppm, 148.53 ppm, 21.49 ppm, and 0.62 ppm, respectively. Precision was found to be satisfactory. Linear in the range of LOQ to 150% level for all the solvents, and accuracy along with robustness, is performed, and acceptable results were obtained.
Conclusion
The proposed method was demonstrated to be simple, sensitive, specific, linear, precise, accurate, and robust, hence can be used to determine the residual organic solvents in Paclitaxel drug substance and drug product.
Collapse
|
6
|
Monitoring forced degradation of drugs using silica coated AgNPs with surface-enhanced Raman scattering. Talanta 2020; 214:120828. [DOI: 10.1016/j.talanta.2020.120828] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2019] [Revised: 02/10/2020] [Accepted: 02/11/2020] [Indexed: 11/24/2022]
|
7
|
Tamura K, Ono M, Kawabe T, Ohara M, Yonemochi E. Degradation Pathway of a Taxane Derivative DS80100717 Drug Substance and Drug Product. Chem Pharm Bull (Tokyo) 2020; 68:392-397. [PMID: 32238657 DOI: 10.1248/cpb.c20-00032] [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] [Indexed: 11/22/2022]
Abstract
The degradation pathway of a taxane derivative and anticancer agent, DS80100717, was investigated. Several degradants were generated under acidic, basic, and oxidative stress conditions in solution. The chemical structures of eight degradants of DS80100717 were elucidated using MS and NMR. The major degradant of the DS80100717 drug substance derived by heating in solid-state was the N-oxide form via oxidation and C2'-epimer of the side chain via acid hydrolysis. We proposed previously unreported degradation pathways of DS80100717 with taxane derivatives such as paclitaxel, docetaxel, and cabazitaxel.
Collapse
Affiliation(s)
- Kousuke Tamura
- Analytical and Quality Evaluation Research Laboratories, Daiichi Sankyo Co., Ltd
| | - Makoto Ono
- Quality Assurance Department, Daiichi Sankyo Co., Ltd
| | - Takefumi Kawabe
- Analytical and Quality Evaluation Research Laboratories, Daiichi Sankyo Co., Ltd
| | - Motomu Ohara
- Analytical and Quality Evaluation Research Laboratories, Daiichi Sankyo Co., Ltd
| | - Etsuo Yonemochi
- Graduate School of Pharmaceutical Sciences, Hoshi University
| |
Collapse
|
8
|
Hong A, Lee HH, Heo CE, Cho Y, Kim S, Kang D, Kim HI. Distinct Fragmentation Pathways of Anticancer Drugs Induced by Charge-Carrying Cations in the Gas Phase. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2017; 28:628-637. [PMID: 27981443 DOI: 10.1007/s13361-016-1559-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2016] [Revised: 10/24/2016] [Accepted: 10/31/2016] [Indexed: 06/06/2023]
Abstract
With the growth of the pharmaceutical industry, structural elucidation of drugs and derivatives using tandem mass spectrometry (MS2) has become essential for drug development and pharmacokinetics studies because of its high sensitivity and low sample requirement. Thus, research seeking to understand fundamental relationships between fragmentation patterns and precursor ion structures in the gas phase has gained attention. In this study, we investigate the fragmentation of the widely used anticancer drugs, doxorubicin (DOX), vinblastine (VBL), and vinorelbine (VRL), complexed by a singly charged proton or alkali metal ion (Li+, Na+, K+) in the gas phase. The drug-cation complexes exhibit distinct fragmentation patterns in tandem mass spectra as a function of cation size. The trends in fragmentation patterns are explicable in terms of structures derived from ion mobility mass spectrometry (IM-MS) and theoretical calculations. Graphical Abstract ᅟ.
Collapse
Affiliation(s)
- Areum Hong
- Department of Chemistry, Research Institute for Natural Sciences, Korea University, Seoul, 02841, Republic of Korea
- Division of Metrology for Quality of Life, Korea Research Institute of Standards and Science, Daejeon, 34113, Republic of Korea
| | - Hong Hee Lee
- Division of Metrology for Quality of Life, Korea Research Institute of Standards and Science, Daejeon, 34113, Republic of Korea
| | - Chae Eun Heo
- Department of Chemistry, Research Institute for Natural Sciences, Korea University, Seoul, 02841, Republic of Korea
| | - Yunju Cho
- Green-Nano Materials Research Center, Daegu, 41566, Republic of Korea
| | - Sunghwan Kim
- Green-Nano Materials Research Center, Daegu, 41566, Republic of Korea
- Department of Chemistry, Kyungpook National University, Daegu, 41566, Republic of Korea
| | - Dukjin Kang
- Division of Metrology for Quality of Life, Korea Research Institute of Standards and Science, Daejeon, 34113, Republic of Korea
| | - Hugh I Kim
- Department of Chemistry, Research Institute for Natural Sciences, Korea University, Seoul, 02841, Republic of Korea.
| |
Collapse
|
9
|
Panday VRN, Rosing H, Huizing MT, Koopman FJ, van Warmerdam LJC, ten Bokkel Huinink WW, Beijnen JH. Urinary excretion of paclitaxel and metabolites in a large series study. J Oncol Pharm Pract 2016. [DOI: 10.1177/107815529800400304] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Objective. Paclitaxel is an antineoplastic agent with significant activity against several tumour types. The major portion of the drug disposition (80-90%) in volves metabolism and biliary excretion. The purpose of this study was to investigate the relationships between the mean urinary paclitaxel excretion frac tion and the administered dose, creatinine clearance, or the measured paclitaxel area under the plasma concentration versus time curve. Design. The design used was a retrospective convenience sample study. Setting. The setting for this study was a hospi talised care center. Patients. A total of 103 24-hour urine collections from 60 patients treated with paclitaxel were used to investigate these relationships. Results. In this large series study, the paclitaxel urinary fraction was 5 ± 3% (mean ± SD) as a fraction of the administered paclitaxel dose. No correlations were found between the paclitaxel urinary excretion fraction and the administered dose, creatinine clear ance, and plasma concentration-time curve. In addi tion, the paclitaxel metabolites 6α-hydroxypaclitaxel, 3'- p-hydroxypaclitaxel and some unidentified com pounds were detected in the 24-hour urine samples of two patients, of whom one had a mild impaired renal function. Conclusions. Considering the low urinary ex cretion of paclitaxel, it is anticipated that patients with renal dysfunction require no dose adjustments. Metabolites were found in the urine.
Collapse
Affiliation(s)
- Vinodh R Nannan Panday
- Department of Medical Oncology, The Netherlands Cancer Institute/Antoni van Leeuwenhoek Hospital, Amsterdam, The Netherlands, Department of Pharmacy and Pharmacology, The Netherlands Cancer Institute/Slotervaart Hospital, Amsterdam, The Netherlands
| | - Hilde Rosing
- Department of Pharmacy and Pharmacology, The Netherlands Cancer Institute/Slotervaart Hospital, Amsterdam, The Netherlands
| | - Manon T Huizing
- Department of Medical Oncology, The Netherlands Cancer Institute/Antoni van Leeuwenhoek Hospital, Amsterdam, The Netherlands, Department of Pharmacy and Pharmacology, The Netherlands Cancer Institute/Slotervaart Hospital, Amsterdam, The Netherlands
| | - Francesca J Koopman
- Department of Pharmacy and Pharmacology, The Netherlands Cancer Institute/Slotervaart Hospital, Amsterdam, The Netherlands
| | - Laurence JC van Warmerdam
- Department of Medical Oncology, The Netherlands Cancer Institute/Antoni van Leeuwenhoek Hospital, Amsterdam, The Netherlands, Department of Pharmacy and Pharmacology, The Netherlands Cancer Institute/Slotervaart Hospital, Amsterdam, The Netherlands
| | - Wim W ten Bokkel Huinink
- Department of Medical Oncology, The Netherlands Cancer Institute/Antoni van Leeuwenhoek Hospital, Amsterdam, The Netherlands
| | - Jos H Beijnen
- Department of Medical Oncology, The Netherlands Cancer Institute/Antoni van Leeuwenhoek Hospital, Amsterdam, The Netherlands, Department of Pharmacy and Pharmacology, The Netherlands Cancer Institute/Slotervaart Hospital, Amsterdam, The Netherlands, Department of Pharmaceutical Analysis and Toxicology, Faculty of Pharmacy, State University of Utrecht, Utrecht, The Netherlands
| |
Collapse
|
10
|
Todeschini V, Sangoi MDS, Goelzer GK, Andrade JMDM, Volpato NM. Delapril and Manidipine Main Degradation Products: LC-UV and LC-ESI-MS Evaluations, Decay Kinetic, and in vitro Cytotoxicity Studies. J LIQ CHROMATOGR R T 2015. [DOI: 10.1080/10826076.2015.1048876] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Vítor Todeschini
- Faculty of Pharmacy, Federal University of Rio de Janeiro, Macaé, RJ, Brazil
- Faculty of Pharmacy, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Maximiliano da Silva Sangoi
- Faculty of Pharmacy, Federal University of Rio de Janeiro, Macaé, RJ, Brazil
- Faculty of Pharmacy, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil
| | | | | | - Nadia Maria Volpato
- Faculty of Pharmacy, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil
| |
Collapse
|
11
|
Wang Y, Feng F, Chen L, Zhao H, Tian L. Isolation, identification and characterization of potential impurities in cabazitaxel and their formation. MAGNETIC RESONANCE IN CHEMISTRY : MRC 2014; 52:783-788. [PMID: 25123687 DOI: 10.1002/mrc.4125] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2014] [Revised: 07/16/2014] [Accepted: 07/17/2014] [Indexed: 06/03/2023]
Affiliation(s)
- Yongyi Wang
- Jiangsu Yew Pharmaceutical Co., Ltd. Hodo Group, Wuxi, 214199, China
| | | | | | | | | |
Collapse
|
12
|
Smejkalová D, Nešporová K, Hermannová M, Huerta-Angeles G, Cožíková D, Vištejnová L, Safránková B, Novotný J, Kučerík J, Velebný V. Paclitaxel isomerisation in polymeric micelles based on hydrophobized hyaluronic acid. Int J Pharm 2014; 466:147-55. [PMID: 24614580 DOI: 10.1016/j.ijpharm.2014.03.024] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2014] [Revised: 03/04/2014] [Accepted: 03/05/2014] [Indexed: 12/01/2022]
Abstract
Physical and chemical structure of paclitaxel (PTX) was studied after its incorporation into polymeric micelles made of hyaluronic acid (HA) (Mw=15 kDa) grafted with C6 or C18:1 acyl chains. PTX was physically incorporated into the micellar core by solvent evaporation technique. Maximum loading capacity for HAC6 and HAC18:1 was determined to be 2 and 14 wt.%, respectively. The loading efficiency was higher for HAC18:1 and reached 70%. Independently of the derivative, loaded HA micelles had spherical size of approximately 60-80 nm and demonstrated slow and sustained release of PTX in vitro. PTX largely changed its form from crystalline to amorphous after its incorporation into the micelle's interior. This transformation increased PTX sensitivity towards stressing conditions, mainly to UV light exposure, during which the structure of amorphous PTX isomerized and formed C3C11 bond within its structure. In vitro cytotoxicity assay revealed that polymeric micelles loaded with PTX isomer had higher cytotoxic effect to normal human dermal fibroblasts (NHDF) and human colon carcinoma cells (HCT-116) than the same micelles loaded with non-isomerized PTX. Further observation indicated that PTX isomer influenced in different ways cell morphology and markers of cell cycle. Taken together, PTX isomer loaded in nanocarrier systems may have improved anticancer activity in vivo than pure PTX.
Collapse
Affiliation(s)
- Daniela Smejkalová
- Contipro Pharma, Dolní Dobrouč 401, 561 02 Dolní Dobrouč, Czech Republic.
| | - Kristina Nešporová
- Contipro Pharma, Dolní Dobrouč 401, 561 02 Dolní Dobrouč, Czech Republic
| | - Martina Hermannová
- Contipro Pharma, Dolní Dobrouč 401, 561 02 Dolní Dobrouč, Czech Republic
| | | | - Dagmar Cožíková
- Contipro Pharma, Dolní Dobrouč 401, 561 02 Dolní Dobrouč, Czech Republic
| | - Lucie Vištejnová
- Contipro Pharma, Dolní Dobrouč 401, 561 02 Dolní Dobrouč, Czech Republic
| | - Barbora Safránková
- Contipro Pharma, Dolní Dobrouč 401, 561 02 Dolní Dobrouč, Czech Republic
| | - Jaroslav Novotný
- Contipro Pharma, Dolní Dobrouč 401, 561 02 Dolní Dobrouč, Czech Republic
| | - Jiří Kučerík
- University of Koblenz-Landau, Campus Landau, Institute for Environmental Sciences, Fortstraße 7, 768 29, Landau, Germany
| | - Vladimír Velebný
- Contipro Pharma, Dolní Dobrouč 401, 561 02 Dolní Dobrouč, Czech Republic
| |
Collapse
|
13
|
Photochemistry of a novel antimuscarinic drug fesoterodine and identification of its photodegradation products by LC–ESI–MS studies. J Photochem Photobiol A Chem 2013. [DOI: 10.1016/j.jphotochem.2013.02.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
|
14
|
McPartland TJ, Patil RA, Malone MF, Roberts SC. Liquid-liquid extraction for recovery of paclitaxel from plant cell culture: solvent evaluation and use of extractants for partitioning and selectivity. Biotechnol Prog 2012; 28:990-7. [PMID: 22581674 DOI: 10.1002/btpr.1562] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2012] [Revised: 04/26/2012] [Indexed: 11/07/2022]
Abstract
A major challenge in the production of metabolites by plant cells is the separation and purification of a desired product from a number of impurities. An important application of plant cell culture is the biosynthesis of the anticancer agent paclitaxel. Liquid-liquid extraction plays a critical role in the recovery of paclitaxel and other valuable plant-derived products from culture broth. In this study, the extraction of paclitaxel and a major unwanted by-product, cephalomannine, from plant cell culture broth into organic solvents is quantified. Potential solvent mixtures show varying affinity and selectivity for paclitaxel over cephalomannine. The partition coefficient of paclitaxel is highest in ethyl acetate and dichloromethane, with measured values of 28 and 25, respectively; however, selectivity coefficients are less than 1 for paclitaxel over cephalomannine for both solvents. Selectivity coefficient increases to 1.7 with extraction in n-hexane, but the partition coefficient decreases to 1.9. Altering the pH of the aqueous phase results in an increase in both recovery and selectivity using n-hexane but does not change the results for other solvents significantly. The addition of extractants trioctylamine (TOA) or tributylphosphate (TBP) to n-hexane gives significantly higher partition coefficients for paclitaxel (8.6 and 23.7, respectively) but no selectivity. Interestingly, when 20% hexafluorobenzene (HFB) is added to n-hexane, the partition coefficient remains approximately constant, but the selectivity coefficient for paclitaxel over cephalomannine improves to 4.5. This significant increase in selectivity early in the purification process has the potential to simplify downstream processing steps and significantly reduce overall purification costs.
Collapse
Affiliation(s)
- Timothy J McPartland
- Dept. of Chemical Engineering, Institute for Cellular Engineering, Process Design and Control Center, University of Massachusetts, Amherst, MA 01003-9303, USA
| | | | | | | |
Collapse
|
15
|
Sangoi MS, Wrasse-Sangoi M, Oliveira PR, Bernardi LS. Determination of lumiracoxib by a validated stability-indicating MEKC method and identification of its degradation products by LC-ESI-MS studies. J Sep Sci 2011; 34:1867-74. [PMID: 21688392 DOI: 10.1002/jssc.201100258] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2011] [Revised: 05/02/2011] [Accepted: 05/06/2011] [Indexed: 11/11/2022]
Abstract
A stability-indicating MEKC method was developed and validated for the analysis of lumiracoxib (LMC) in pharmaceutical formulations using nimesulide as the internal standard (IS). Optimal conditions for the separation of LMC and degradation products were investigated. The method employed 50 mM borate buffer and 50 mM anionic detergent SDS solution at pH 9.0. MEKC method was performed on a fused-silica capillary (50 μm id; effective length, 40 cm) maintained at 30°C. The applied voltage was 20 kV and photodiode array (PDA) detector was set at 208 nm. The method was validated in accordance with the International Conference on Harmonisation requirements. The stability-indicating capability of the method was established by enforced degradation studies combined with peak purity assessment using PDA detection. The degradation products formed under stressed conditions were investigated by LC-ESI-MS and the two degraded products were identified. MEKC method was linear over the concentration range of 5-150 μg/mL (r(2) =0.9999) of LMC. The method was precise, accurate, with LOD and LOQ of 1.34 and 4.48 μg/mL, respectively. The robustness was proved by a fractional factorial design evaluation. The proposed MEKC method was successfully applied for the quantitative analysis of LMC in tablets to support the quality control.
Collapse
Affiliation(s)
- Maximiliano S Sangoi
- Laboratory of Research in Pharmaceutical Quality Control, Faculty of Pharmacy, Federal University of Rio Grande do Sul, Porto Alegre-RS, Brazil.
| | | | | | | |
Collapse
|
16
|
Sangoi MS, Todeschini V, Steppe M. Fesoterodine stress degradation behavior by liquid chromatography coupled to ultraviolet detection and electrospray ionization mass spectrometry. Talanta 2011; 84:1068-79. [DOI: 10.1016/j.talanta.2011.03.018] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2010] [Revised: 03/02/2011] [Accepted: 03/07/2011] [Indexed: 12/12/2022]
|
17
|
An integrated method for degradation products detection and characterization using hybrid ion trap/time-of-flight mass spectrometry and data processing techniques: Application to study of the degradation products of danofloxacin under stressed conditions. Anal Bioanal Chem 2011; 399:2475-86. [DOI: 10.1007/s00216-010-4629-0] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2010] [Revised: 12/15/2010] [Accepted: 12/17/2010] [Indexed: 10/18/2022]
|
18
|
Morikawa K, Tanaka K, Li F, Awale S, Tezuka Y, Nobukawa T, Kadota S. Analysis of MS/MS Fragmentation of Taxoids. Nat Prod Commun 2010. [DOI: 10.1177/1934578x1000501007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
The fragmentation pathways of seven types of taxoids were investigated by using a LC-MS/MS method, namely: (1) neutral taxoids with a C-4(20) double bond; (2) taxoids with a C-4(20) double bond and oxygenation at C-14; (3) 5-cinnamoyl taxoids with a C-4(20) double bond; (4) a basic taxoid with a C-4(20) double bond; (5) a taxoid with a C-4(20) epoxide; (6) taxoids with an oxetane ring; and (7) taxoids with an oxetane ring and a phenylisoserine C-13 side chain. Depending on the class of core structure and the substitution pattern, each taxoid gave either the molecular adduct ion [M+NH4]+ or [M+H]+. In the MS/MS, the molecular adduct ion gave characteristic product ions corresponding to the loss of water, acetic acid, benzoic acid, and cinnamic acid or the phenylisoserine group. These could reflect the difference of the substitutions and structural modifications and should be utilized for the structure elucidation of taxoids by LC-MS.
Collapse
Affiliation(s)
- Kouhei Morikawa
- Division of Complementary Medicine, School of Allied Health Science, Kitasato University, 1-15-1 Kitasato, Sagamihara 228-8555, Japan
| | - Ken Tanaka
- Division of Pharmacognosy, Department of Medicinal Resources, Institute of Natural Medicine, University of Toyama, 2630 Sugitani, Toyama 930-0194, Japan
| | - Feng Li
- Division of Natural Products Chemistry, Department of Medicinal Resources, Institute of Natural Medicine, University of Toyama, 2630 Sugitani, Toyama 930-0194, Japan
| | - Suresh Awale
- Division of Natural Products Chemistry, Department of Medicinal Resources, Institute of Natural Medicine, University of Toyama, 2630 Sugitani, Toyama 930-0194, Japan
| | - Yasuhiro Tezuka
- Division of Natural Products Chemistry, Department of Medicinal Resources, Institute of Natural Medicine, University of Toyama, 2630 Sugitani, Toyama 930-0194, Japan
| | - Takahiro Nobukawa
- Division of Complementary Medicine, School of Allied Health Science, Kitasato University, 1-15-1 Kitasato, Sagamihara 228-8555, Japan
| | - Shigetoshi Kadota
- Division of Natural Products Chemistry, Department of Medicinal Resources, Institute of Natural Medicine, University of Toyama, 2630 Sugitani, Toyama 930-0194, Japan
| |
Collapse
|
19
|
Zhang LK, Pramanik BN. Characterization of major degradation products of an adenosine A2A receptor antagonist under stressed conditions by LC-MS and FT tandem MS analysis. JOURNAL OF MASS SPECTROMETRY : JMS 2010; 45:146-156. [PMID: 19911413 DOI: 10.1002/jms.1695] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Parkinson's disease (PD) is a very serious neurological disorder, and current methods of treatment fail to achieve long-term control. SCH 420814 is a potent, selective and orally active adenosine A(2A) receptor antagonist discovered by Schering-Plough. Stability testing provides evidence of the quality of a bulk drug when exposed to the influence of environmental factors. Understanding the drug degradation profiles is critical to the safety and potency assessment of the drug candidate for clinical trials. As a result, identification of degradation products has taken an important role in drug development process. In this study, a rapid and sensitive method was developed for the structural determination of the degradation products of SCH 420814 formed under different forced conditions. The study utilizes a combination of liquid chromatography-tandem-mass spectrometry (LC-MS/MS) and Fourier Transform (FT) MS techniques to obtain complementary information for structure elucidation of the unknowns. This combination approach has significant impact on degradation product identification. A total of ten degradation products of SCH 420814 were characterized using the developed method.
Collapse
Affiliation(s)
- Li-Kang Zhang
- Chemical Research, Schering-Plough Research Institute, 2015 Galloping Hill Road, Kenilworth, NJ 07033, USA.
| | | |
Collapse
|
20
|
Guo Q, Knight PT, Mather PT. Tailored drug release from biodegradable stent coatings based on hybrid polyurethanes. J Control Release 2009; 137:224-33. [DOI: 10.1016/j.jconrel.2009.04.016] [Citation(s) in RCA: 76] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2008] [Revised: 04/09/2009] [Accepted: 04/10/2009] [Indexed: 10/20/2022]
|
21
|
Miyata R, Ueda M, Jinno H, Konno T, Ishihara K, Ando N, Kitagawa Y. Selective targeting by preS1 domain of hepatitis B surface antigen conjugated with phosphorylcholine-based amphiphilic block copolymer micelles as a biocompatible, drug delivery carrier for treatment of human hepatocellular carcinoma with paclitaxel. Int J Cancer 2009; 124:2460-7. [DOI: 10.1002/ijc.24227] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
22
|
Oral microemulsions of paclitaxel: in situ and pharmacokinetic studies. Eur J Pharm Biopharm 2008; 71:310-7. [PMID: 18793723 DOI: 10.1016/j.ejpb.2008.08.015] [Citation(s) in RCA: 79] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2007] [Revised: 08/14/2008] [Accepted: 08/15/2008] [Indexed: 11/21/2022]
Abstract
The overall goal of this study was to develop cremophor-free oral microemulsions of paclitaxel (PAC) to enhance its permeability and oral absorption. The mechanism of this enhancement, as well as characteristics of the microemulsions relevant to the increase in permeability and absorption of the low solubility, low permeability PAC was investigated. Phase diagrams were used to determine the macroscopic phase behavior of the microemulsions and to compare the efficiency of different surfactant-oil mixtures to incorporate water. The microemulsion region on the phase diagrams utilizing surfactant-myvacet oil combinations was in decreasing order: lecithin: butanol: myvacet oil (LBM, 48.5%)>centromix CPS: 1-butanol: myvacet oil (CPS, 45.15%)>capmul MCM: polysorbate 80: myvacet oil (CPM, 27.6%)>capryol 90: polysorbate 80: myvacet oil (CP-P80, 23.9%)>capmul: myvacet oil (CM, 20%). Oil-in-water (o/w) microemulsions had larger droplet sizes (687-1010 nm) than the water-in-oil (w/o) microemulsions (272-363 nm) when measured using a Zetasizer nano series particle size analyzer. Utilizing nuclear magnetic resonance spectroscopy (NMR), the self-diffusion coefficient (D) of PAC in CM, LBM and CPM containing 10% of deuterium oxide (D(2)O) was 2.24x10(-11), 1.97x10(-11) and 0.51x10(-11) m(2)/s, respectively. These values indicate the faster molecular mobility of PAC in the two w/o microemulsions (CM and LBM) than the o/w microemulsion--CPM. The in situ permeability of PAC through male CD-IGS rat intestine was 3- and 11-fold higher from LBM and CM, respectively, than that from the control clinical formulation, Taxol (CE, cremophor: ethanol) in a single pass perfusion study. PAC permeability was significantly increased in the presence of the pgp/CYP3A4 inhibitor cyclosporine A (CsA). This enhancement may be attributed to the pgp inhibitory effect of the surfactants, oil and/or the membrane perturbation effect of the surfactants. The oral disposition of PAC in CM, LBM and CPM compared to CE was studied in male CD-IGS rats after a single oral dose (20 mg/kg). The area-under-the-curve of PAC in CM was significantly larger than LBM, CPM and CE. Oral microemulsions of PAC were developed that increased both the permeability and AUC of PAC as compared to CE.
Collapse
|
23
|
Vas G, Alquier L, Maryanoff CA, Cohen J, Reed G. Investigation of mass-balance issue in e-beam sterilized paclitaxel eluting coronary stents by SPME/GC-MS. J Pharm Biomed Anal 2008; 48:568-72. [PMID: 18617351 DOI: 10.1016/j.jpba.2008.05.031] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2008] [Revised: 05/16/2008] [Accepted: 05/19/2008] [Indexed: 10/22/2022]
Abstract
Paclitaxel eluting coronary stents were sterilized by e-beam in a closed system, to investigate sterilization related mass-balance issues and evaluate potential volatile paclitaxel degradation products. A solid-phase microextraction (SPME) method utilizing a polydimethyl-siloxane/divinyl-benzene (PDMS/DVB) fiber was optimized for extracting the volatiles from the head-space of the sterilized stents. GC-MS was used for separation, identification, and quantitation of the components. Benzaldehyde and benzoic acid were identified as paclitaxel related volatile degradation products. Three groups of stents were included in the study, a control group (not exposed to e-beam), a group sterilized at 25 kGy, and a final group sterilized at 75 kGy. The stents sterilized by e-beam at 75 kGy contained significantly higher levels of benzoic acid relative to the controls and the stents at 25 kGy contained intermediate levels of benzoic acid. The benzaldehyde levels increased in the 25 kGy e-beam sterilized stents relative to the control but remained fairly constant in the 75 kGy e-beam sterilized stents relative to the 25 kGy e-beam results. Mechanism for the formation of benzoic acid and benzaldehyde from paclitaxel was proposed. The levels of benzoic acid and benzaldehyde observed on the stents did not resolve the original mass-balance issue, but most likely contribute to the lack of mass balance observed for paclitaxel.
Collapse
Affiliation(s)
- György Vas
- Cordis Corporation, Convergent Product Development, Analytical Technologies, Welsh and McKean Roads, P.O. Box 776, Spring House, PA 19477-0776, USA.
| | | | | | | | | |
Collapse
|
24
|
Tanino T, Nawa A, Miki Y, Iwaki M. Enzymatic stability of 2′‐ethylcarbonate‐linked paclitaxel in serum and conversion to paclitaxel by rabbit liver carboxylesterase for use in prodrug/enzyme therapy. Biopharm Drug Dispos 2008; 29:259-69. [DOI: 10.1002/bdd.611] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
|
25
|
Goyal N, El Achchabi A, Goldberg E, Hochhaus G. Simultaneous Determination of Dexamethasone, Dexamethasone 21‐Acetate, and Paclitaxel in a Simulated Biological Matrix by RP‐HPLC: Assay Development and Validation. J LIQ CHROMATOGR R T 2008. [DOI: 10.1080/10826070802039515] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Navin Goyal
- a Department of Pharmaceutics, College of Pharmacy , University of Florida , Gainesville, Florida, USA
| | - Amin El Achchabi
- b Department of Material Sciences, College of Engineering , University of Florida , Gainesville, Florida, USA
| | - Eugene Goldberg
- b Department of Material Sciences, College of Engineering , University of Florida , Gainesville, Florida, USA
| | - Guenther Hochhaus
- a Department of Pharmaceutics, College of Pharmacy , University of Florida , Gainesville, Florida, USA
| |
Collapse
|
26
|
Sun P, Wang X, Alquier L, Maryanoff CA. Determination of relative response factors of impurities in paclitaxel with high performance liquid chromatography equipped with ultraviolet and charged aerosol detectors. J Chromatogr A 2008; 1177:87-91. [DOI: 10.1016/j.chroma.2007.11.035] [Citation(s) in RCA: 86] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2007] [Revised: 10/25/2007] [Accepted: 11/05/2007] [Indexed: 11/25/2022]
|
27
|
Pyo SH, Cho JS, Choi HJ, Han BH. Evaluation of paclitaxel rearrangement involving opening of the oxetane ring and migration of acetyl and benzoyl groups. J Pharm Biomed Anal 2006; 43:1141-5. [PMID: 17029668 DOI: 10.1016/j.jpba.2006.08.026] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2006] [Revised: 08/26/2006] [Accepted: 08/30/2006] [Indexed: 11/29/2022]
Abstract
The stability of drug is a critical factor in quality control, drug efficacy, safety, storage, and production conditions. The rearrangement of paclitaxel, which involves opening of the oxetane ring and migration of acetyl group occurred on heating a powder of purified paclitaxel. Subsequently, the unusual migration of benzoyl groups progressed rapidly in organic solvents. These rearrangement derivatives were isolated carefully. The structures of the intermediate derivative A and the product derivative B were confirmed using (1)H NMR, high performance liquid chromatography (HPLC), and mass spectrometry. We proposed the rearrangement pathway here for the first time. Neither derivative exhibited bioactivity in SKOV3 (ovarian cancer) or MDA-MB-435 (breast cancer) cell culture assays.
Collapse
Affiliation(s)
- Sang-Hyun Pyo
- Samyang Genex Food & Bio Research Center, 63-2 Hwaam-Dong, Yuseong-Gu, Daejeon 305-717, South Korea.
| | | | | | | |
Collapse
|
28
|
Pyo SH, Choi HJ, Han BH. Large-scale purification of 13-dehydroxybaccatin III and 10-deacetylpaclitaxel, semi-synthetic precursors of paclitaxel, from cell cultures of Taxus chinensis. J Chromatogr A 2006; 1123:15-21. [PMID: 16716338 DOI: 10.1016/j.chroma.2006.04.093] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2006] [Revised: 04/04/2006] [Accepted: 04/12/2006] [Indexed: 11/23/2022]
Abstract
The taxane derivatives 13-dehydroxybaccatin III (13-DHB III) and 10-deacetylpaclitaxel (10-DAP) can be used as semi-synthetic precursors of paclitaxel. These precursors were isolated in a simple and economical procedure during purification of paclitaxel from plant cell culture extracts. No additional costs for cell culture or extraction by silica-gel low-pressure chromatography were incurred. Precipitation from dichloromethane/n-hexane followed by HPLC on ODS and silica-gel resins resulted in paclitaxel of 99.5% purity with 80% overall yield. ODS low-pressure chromatography and THF/n-hexane precipitation yielded 13-dehydroxybaccatin III at >99% purity with 87.1% overall yield, and ODS low-pressure chromatography alone yielded 10-deacetylpaclitaxel at >90% purity with 93.4% overall yield. These compounds are of sufficient purity for use in semi-synthesis of paclitaxel. Both compounds were obtained in high yield at >99.5% purity using ODS-HPLC. The procedures described allow the simultaneous purification of 13-dehydroxybaccatin III, 10-deacetylpaclitaxel, and paclitaxel with only minimal additional expense for reagents or equipment.
Collapse
Affiliation(s)
- Sang-Hyun Pyo
- Samyang Genex Food & Bio Research Center, 63-2 Hwaam-Dong, Yuseong-Gu, Daejeon 305-717, South Korea
| | | | | |
Collapse
|
29
|
Smith CA, O'Maille G, Want EJ, Qin C, Trauger SA, Brandon TR, Custodio DE, Abagyan R, Siuzdak G. METLIN: a metabolite mass spectral database. Ther Drug Monit 2006; 27:747-51. [PMID: 16404815 DOI: 10.1097/01.ftd.0000179845.53213.39] [Citation(s) in RCA: 1632] [Impact Index Per Article: 90.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Endogenous metabolites have gained increasing interest over the past 5 years largely for their implications in diagnostic and pharmaceutical biomarker discovery. METLIN (http://metlin.scripps.edu), a freely accessible web-based data repository, has been developed to assist in a broad array of metabolite research and to facilitate metabolite identification through mass analysis. METLINincludes an annotated list of known metabolite structural information that is easily cross-correlated with its catalogue of high-resolution Fourier transform mass spectrometry (FTMS) spectra, tandem mass spectrometry (MS/MS) spectra, and LC/MS data.
Collapse
Affiliation(s)
- Colin A Smith
- The Scripps Research Institute, Molecular Biology and Center for Mass Spectrometry, La Jolla, California 92037, USA
| | | | | | | | | | | | | | | | | |
Collapse
|
30
|
Vasu Dev R, Moses Babu J, Vyas K, Sai Ram P, Ramachandra P, Sekhar NM, Mohan Reddy DN, Srinivasa Rao N. Isolation and characterization of impurities in docetaxel. J Pharm Biomed Anal 2005; 40:614-22. [PMID: 16330175 DOI: 10.1016/j.jpba.2005.10.037] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2005] [Revised: 10/20/2005] [Accepted: 10/21/2005] [Indexed: 11/20/2022]
Abstract
During the process development of docetaxel, two polar impurities (Impurities I and II) and two non-polar impurities (Impurities III and IV) were detected by high performance liquid chromatography (HPLC). All the impurities were isolated by Medium Pressure Liquid Chromatography (MPLC). The Impurities I, II, III and IV were identified as 13-[(4S,5R)-2-oxo-4-phenyl-oxazolidine-5-carboxy]-10-deacetyl baccatin III ester, 2'-epi docetaxel, 7-epi docetaxel and 13-[(4S,5R)-2-oxo-4-phenyl-oxazolidine-3,5-dicarboxyl-3-tert-butyl)]-10-deacetyl baccatin III ester, respectively, based on one- (1D) and two-dimensional (2D) nuclear magnetic resonance (NMR) spectroscopy data. The Impurity IV was crystallized and the structure was solved by single crystal X-ray diffraction (XRD). Two impurities (Impurities II and III) were found to be process related, while the remaining two impurities (Impurities I and IV) turned out to be isomers. The formation of these impurities was discussed.
Collapse
Affiliation(s)
- R Vasu Dev
- Department of Analytical Research, Discovery Research, Dr. Reddy's Laboratories Ltd., Bollaram Road, Miyapur, Hyderabad 500049, Andhra Pradesh, India
| | | | | | | | | | | | | | | |
Collapse
|
31
|
Determination of organic impurities in pharmaceutical preparations. JOURNAL OF ANALYTICAL CHEMISTRY 2005. [DOI: 10.1007/s10809-005-0003-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
32
|
Glazkov IN, Bochkareva NL, Revel’skii IA. Determination of organic impurities in pharmaceutical preparations. JOURNAL OF ANALYTICAL CHEMISTRY 2005. [DOI: 10.1007/s10809-005-0032-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
33
|
Determination of organic impurities in pharmaceutical preparations. JOURNAL OF ANALYTICAL CHEMISTRY 2005. [DOI: 10.1007/pl00021913] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
|
34
|
Dilcher C, Chan R, Hellinga D, Seabron R, Pakala R, Kuchulakanti PK, Richard R, Chan K, Zhong S, Barry JJ, Waksman R. Effect of ionizing radiation on the stability and performance of the TAXUS Express2 paclitaxel-eluting stent. ACTA ACUST UNITED AC 2004; 5:136-41. [PMID: 15721849 DOI: 10.1016/j.carrad.2004.06.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2004] [Accepted: 06/04/2004] [Indexed: 10/25/2022]
Abstract
BACKGROUND The advent of drug-eluting stents has provided the interventional cardiologist an effective new tool in treating coronary restenosis. There remains, however, a small group of patients that still require intervention following drug-eluting stent therapy. Currently, intravascular brachytherapy (IVBT) is approved for use in the treatment of in-stent restenosis (ISR). This study investigated the effect of gamma and beta radiation doses typically used in IVBT on the performance of the TAXUS Express(2) paclitaxel-eluting stent. METHODS AND RESULTS It was determined that there were no statistically significant changes to in vitro paclitaxel release from stent exposed to radiation compared to controls subjected to the same conditions except for the radiation exposure. The molecular weight of the Translute polymer carrier matrix and the level of paclitaxel degradants were not changed following exposure to radiation doses up to twice what is typically used in IVBT. Beta and gamma radiation doses typically used in IVBT had no significant effect on the Translute polymer carrier, paclitaxel degradation, or paclitaxel release in this in vitro model. CONCLUSION The data are encouraging and support further evaluation of the use of IVBT in the treatment of ISR in the presence of drug-eluting stents.
Collapse
|
35
|
Ciutaru D, Badea I, Lazara L, Nicolescu D, Tudose A. A HPLC validated assay of paclitaxel’s related impurities in pharmaceutical forms containing Cremophor® EL. J Pharm Biomed Anal 2004; 34:493-9. [PMID: 15127804 DOI: 10.1016/s0731-7085(03)00632-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
A HPLC method has been developed for the determination of the paclitaxel's related impurities in pharmaceutical forms. This method ensures the rapid determination of related impurities in the presence of polyoxyl castor oil--the main constituent of paclitaxel's clinical formulation vehicle. The method is simple and does not require any preliminary treatment of the sample. The method was fully validated.
Collapse
Affiliation(s)
- Dana Ciutaru
- Sindan Pharmaceutical Co., 11 Ion Mihalache Blvd., 78168 Bucharest, Romania
| | | | | | | | | |
Collapse
|
36
|
Rudaz S, Souverain S, Schelling C, Deleers M, Klomp A, Norris A, Vu T, Ariano B, Veuthey JL. Development and validation of a heart-cutting liquid chromatography–mass spectrometry method for the determination of process-related substances in cetirizine tablets. Anal Chim Acta 2003. [DOI: 10.1016/s0003-2670(03)00339-8] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
37
|
Larson RR, Khazaeli MB, Dillon HK. Development of an HPLC method for simultaneous analysis of five antineoplastic agents. APPLIED OCCUPATIONAL AND ENVIRONMENTAL HYGIENE 2003; 18:109-19. [PMID: 12519685 DOI: 10.1080/10473220301432] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Simultaneous analysis of common antineoplastic agents potentially hazardous to healthcare workers is of much interest for the evaluation of the overall health risk to these workers. Such analysis could be applied to both air and surface monitoring samples to provide a broader indication of risk to combinations of these agents. It was determined that the ability to simultaneously evaluate five frequently used, potentially hazardous agents was sufficient for general evaluation of exposures to healthcare workers. The approach used to select the five agents was to obtain a list of the agents used most frequently in both a cancer hospital and an outpatient cancer treatment center, then review the list to determine which agents were potentially more hazardous to human health. From these reviews, it was decided to attempt to develop an analytical method able to detect and quantify the presence of 5-fluorouracil, ifosfamide, cyclophosphamide, doxorubicin HCl, and paclitaxel. A reverse-phase high performance liquid chromatograph (HPLC) with a Waters Symmetry C8 column and a UV wavelength of 195 nm was selected for method development. The mobile phase was 22.75 percent acetonitrile in water buffered to a pH of 6.0. The HPLC analytical method developed is able to detect all five agents of interest, and at minimum detectable concentrations of 0.5-microgram/mL for each of the five agents.
Collapse
Affiliation(s)
- Rodney R Larson
- The University of Alabama at Birmingham School of Public Health, Birmingham, Alabama, USA
| | | | | |
Collapse
|
38
|
Lorenz SA, Bigwarfe PM, Balasubramanian SV, Fetterly GJ, Straubinger RM, Wood TD. Noncovalent dimerization of paclitaxel in solution: evidence from electrospray ionization mass spectrometry. J Pharm Sci 2002; 91:2057-66. [PMID: 12210052 DOI: 10.1002/jps.10194] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Paclitaxel, a unique antimitotic chemotherapy agent that inhibits cell division by binding to microtubules and prevents them from "depolymerizing," has received widespread interest because of its efficacy in fighting certain types of cancer, including breast and ovarian cancer. Paclitaxel undergoes aggregation at millimolar concentrations in both aqueous media and solvents of low polarity (mimicking hydrophobic environments). Its aggregation may have impact on its aqueous stability and its ability to stabilize microtubules. Here, we investigated the dimerization phenomenon of paclitaxel by electrospray ionization mass spectrometry (ESI-MS). Paclitaxel dimers were stable in solutions of acetonitrile/aqueous ammonium acetate (80/20) and aqueous sodium acetate/acetonitrile (92/8 or 95/5) at various pH values. Additional experiments using solution-phase hydrogen/deuterium exchange were employed to ascertain whether or not the observed dimers were formed in solution or as an artifact of the ESI process by ion-molecule reaction. The evidence supports formation of the dimer in solution, and the approach used can be extended to investigation of other types of drug-drug interactions.
Collapse
Affiliation(s)
- Sarah A Lorenz
- Department of Chemistry, Natural Sciences Complex, State University of New York at Buffalo, Buffalo, New York 14260-3000, USA
| | | | | | | | | | | |
Collapse
|
39
|
Sambaiah T, King KY, Tsay SC, Mei NW, Hakimclahi S, Lai YK, Lieu CH, Hwu JR. Synthesis and immunofluorescence assay of a new biotinylated paclitaxel. Eur J Med Chem 2002; 37:349-53. [PMID: 11960670 DOI: 10.1016/s0223-5234(02)01337-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
7-(5'-Biotinylamidopropanoyl)paclitaxel was synthesised by chemical methods; its immunofluorescence assay and the cell uptake experiments were performed by use of human leukemia U937 cells. The results indicate that paclitaxel is arresting cell cycle at the G(2)M phase only.
Collapse
Affiliation(s)
- Thota Sambaiah
- Department of Chemistry, Organosilicon and Synthesis Laboratory, National Tsing Hua University, Hsinchu 30013, Taiwan, ROC
| | | | | | | | | | | | | | | |
Collapse
|
40
|
Blum W, Aichholz R, Ramstein P, Kühnöl J, Brüggen J, O'Reilly T, Flörsheimer A. In vivo metabolism of epothilone B in tumor-bearing nude mice: identification of three new epothilone B metabolites by capillary high-pressure liquid chromatography/mass spectrometry/tandem mass spectrometry. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2001; 15:41-49. [PMID: 11135423 DOI: 10.1002/1097-0231(20010115)15:1<41::aid-rcm190>3.0.co;2-w] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Epothilone B is a 16-membered macrolide produced by the myxobacterium Sorangium cellulosum and is currently under clinical investigation. Experimentally, epothilone B demonstrates potent antiproliferative activity at the nanomolar level in vitro, and potent regression-producing antitumor activity in vivo, similar to paclitaxel (Taxol). In order to foster the design of improved derivatives, the potential biotransformation products of epothilone B formed in liver of tumor-bearing mice after intravenous administration of 10 mg/kg were characterized in an early stage of compound development. Solely on the basis of capillary high-performance liquid chromatography, combined either with electrospray tandem mass spectrometry (in precursor and product ion scan mode) and single analyzing time-of-flight mass spectrometry (H/D exchange and accurate mass measurement), three main metabolites could be detected. The three metabolites, formed by the liver, have in common that the epoxide ring was hydrolyzed and that the macrocyclic lactone ring was opened to the acid. In two cases it is assumed that open-chain intermediates re-cycled either to a lactone or, after conjugation with taurine, to the respective lactam. The proposed structures were additionally supported by the determination of the number of the exchangeable hydrogen atoms and by confirmation of the proposed elemental composition by exact mass measurement.
Collapse
Affiliation(s)
- W Blum
- Novartis Pharma AG, Research Department, CH-4002 Basel, Switzerland
| | | | | | | | | | | | | |
Collapse
|
41
|
Abstract
Hyphenated HPLC-NMR is a fast growing technology, allowing rapid and detailed structural characterization of unknown mixtures. The technical aspects of the technology are reviewed on the basis of system configuration, operation, solvent suppression, HPLC and NMR optimization, and detection. The combined use of HPLC-NMR and HPLC-MS is also described and discussed. Various applications of HPLC-NMR and integrated HPLC-NMR-MS in drug discovery, especially in the separation and structure elucidation of drug impurities, reaction mixtures, degradation products, in vitro and in vivo metabolites, and combinatorial library samples, are illustrated.
Collapse
Affiliation(s)
- S X Peng
- The Procter & Gamble Company, Health Care Research Center, 8700 Mason-Montgomery Road, Mason, OH 45040, USA.
| |
Collapse
|
42
|
Schellen A, Ooms B, van Gils M, Halmingh O, van der Vlis E, van de Lagemaat D, Verheij E. High throughput on-line solid phase extraction/tandem mass spectrometric determination of paclitaxel in human serum. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2000; 14:230-233. [PMID: 10669881 DOI: 10.1002/(sici)1097-0231(20000229)14:4<230::aid-rcm872>3.0.co;2-j] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
The feasibility of high throughput on-line solid phase extraction/tandem mass spectrometry (SPE/MS/MS) is tested for target analysis of paclitaxel in human serum. The use of a dual Prospekt system, with parallel SPE and elution directly to the mass spectrometer, resulted in a cycle time of 80 seconds for the entire, fully automated assay. The assay proved to be linear from 1 to 1000 ng/mL. Cartridges packed with small sorbent particles functioned both as SPE cartridges and as short analytical columns.
Collapse
Affiliation(s)
- A Schellen
- Spark Holland BV, P.O. Box 388, 7800 AJ Emmen, The Netherlands
| | | | | | | | | | | | | |
Collapse
|
43
|
Peng SX, Borah B, Dobson RL, Liu YD, Pikul S. Application of LC-NMR and LC-MS to the identification of degradation products of a protease inhibitor in dosage formulations. J Pharm Biomed Anal 1999; 20:75-89. [PMID: 10704011 DOI: 10.1016/s0731-7085(98)00311-2] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
LC-NMR and LC-MS were applied to the characterization of six degradation products of a protease inhibitor, N-hydroxy-1,3-di-[4-ethoxybenzenesulphonyl]-5,5-dimethyl-[1,3]c yclohexyldiazine-2-carboxamide, in a dosage formulation. A reversed-phase HPLC method was developed for the separation of the parent compound and its six degradation products. LC-MS was then utilized to obtain the molecular weight and fragmentation information using an electrospray ionization (ESI) interface in the positive ion mode. LC-NMR was employed to acquire detailed structural information using a selective solvent suppression pulse sequence in the stop flow mode. This work demonstrated the usefulness of this integrated approach for the rapid and unambiguous identification of drug compounds and their degradation products in dosage formulations.
Collapse
Affiliation(s)
- S X Peng
- The Procter & Gamble Company, Health Care Research Center, Mason, OH 45040, USA.
| | | | | | | | | |
Collapse
|
44
|
Abstract
The combination of high-performance liquid chromatography and mass spectrometry (LC/MS) has had a significant impact on drug development over the past decade. Continual improvements in LC/MS interface technologies combined with powerful features for structure analysis, qualitative and quantitative, have resulted in a widened scope of application. These improvements coincided with breakthroughs in combinatorial chemistry, molecular biology, and an overall industry trend of accelerated development. New technologies have created a situation where the rate of sample generation far exceeds the rate of sample analysis. As a result, new paradigms for the analysis of drugs and related substances have been developed. The growth in LC/MS applications has been extensive, with retention time and molecular weight emerging as essential analytical features from drug target to product. LC/MS-based methodologies that involve automation, predictive or surrogate models, and open access systems have become a permanent fixture in the drug development landscape. An iterative cycle of "what is it?" and "how much is there?" continues to fuel the tremendous growth of LC/MS in the pharmaceutical industry. During this time, LC/MS has become widely accepted as an integral part of the drug development process. This review describes the utility of LC/MS techniques for accelerated drug development and provides a perspective on the significant changes in strategies for pharmaceutical analysis. Future applications of LC/MS technologies for accelerated drug development and emerging industry trends are also discussed.
Collapse
Affiliation(s)
- M S Lee
- Milestone Development Services, Pennington, New Jersey 08534-0813, USA
| | | |
Collapse
|
45
|
Kerns EH, Volk KJ, Whitney JL, Rourick RA, Lee MS. Chemical Identification of Botanical Components Using Liquid Chromatography/Mass Spectrometry. ACTA ACUST UNITED AC 1998. [DOI: 10.1177/009286159803200220] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
|
46
|
Analysis of impurities by high-performance thin-layer chromatography with Fourier transform infrared spectroscopy and UV absorbance detection in situ measurement: chlordiazepoxide in bulk powder and in tablets. J Chromatogr A 1998. [DOI: 10.1016/s0021-9673(98)00334-3] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|