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Pimentel-Almeida W, Testolin RC, Gaspareto P, Gerlach OMS, Pereira-Filho J, Sanches-Simões E, Corrêa AXR, Almerindo GI, González SYG, Somensi CA, Radetski CM. Degradation of cytostatics methotrexate and cytarabine through physico-chemical and advanced oxidative processes: influence of pH and combined processes on the treatment efficiency. ENVIRONMENTAL TECHNOLOGY 2024; 45:4053-4061. [PMID: 37482803 DOI: 10.1080/09593330.2023.2240488] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Accepted: 05/30/2023] [Indexed: 07/25/2023]
Abstract
Environmental release of wastewater that contains cytostatic drugs can cause genotoxic impact, since these drugs act directly on the genetic material of aquatic organisms. Thus, the aim of this study was to evaluate the removal of the cytostatic drugs cytarabine (CTR) and methotrexate (MTX) using different physico-chemical methods individually (i.e. US, O3, H2O2 and UV) and combined (i.e. O3/US, US/H2O2, O3/H2O2 and O3/US/H2O2) under different pH conditions (4, 7 and 10). In the degradation tests, the efficiency of the methods applied was found to be dependent on the pH of the solution, with the degradation of CTR being better at pH 4 and MTX at pH 7 and pH 10. The US, H2O2 and US + H2O2 methods were the least efficient in degrading CTR and MTX under the pH conditions tested. The highest MTX degradation rate after 16 min of treatment at pH 7 was achieved by the O3 + H2O2 method (97.05% - C/C0 = 0.0295). For CTR, the highest degradation rate after 16 min of treatment was achieved by the O3 process (99.70% - C/C0 = 0.0030) at pH 4. In conclusion, most of the treatment methods tested for the degradation of CTR and MTX are effective. Notably, ozonolysis is an efficient process applied alone. Also, in combination with other methods (US + O3, O3 + H2O2 and O3 + H2O2 + US) it increases the degradation performance, showing a rapid removal rate of 70-94% in less than 4 min of treatment.
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Affiliation(s)
- Wendell Pimentel-Almeida
- Programa de Pós-Graduação em Ciência e Tecnologia Ambiental, Universidade do Vale do Itajaí (UNIVALI), Itajaí, Brazil
| | - Renan C Testolin
- Laboratório de Remediação Ambiental, Universidade do Vale do Itajaí (UNIVALI), Itajaí, Brazil
| | - Patrick Gaspareto
- Universidade Federal de Santa Catarina, Hospital Universitário, Florianópolis, Brazil
| | - Otto M S Gerlach
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade do Vale do Itajaí (UNIVALI), Itajaí, Brazil
| | - Jurandir Pereira-Filho
- Programa de Pós-Graduação em Ciência e Tecnologia Ambiental, Universidade do Vale do Itajaí (UNIVALI), Itajaí, Brazil
| | - Eric Sanches-Simões
- Programa de Pós-Graduação em Ciência e Tecnologia Ambiental, Universidade do Vale do Itajaí (UNIVALI), Itajaí, Brazil
| | - Albertina X R Corrêa
- Programa de Pós-Graduação em Ciência e Tecnologia Ambiental, Universidade do Vale do Itajaí (UNIVALI), Itajaí, Brazil
| | - Gizelle I Almerindo
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade do Vale do Itajaí (UNIVALI), Itajaí, Brazil
| | - Sergio Y G González
- Programa de Pós-Graduação em Engenharia Química, Universidade Federal de Santa Catarina (UFSC), Florianópolis, Brazil
| | - Cleder A Somensi
- Instituto Federal Catarinense - Campus Araquari, Araquari, Brazil
| | - Claudemir M Radetski
- Programa de Pós-Graduação em Ciência e Tecnologia Ambiental, Universidade do Vale do Itajaí (UNIVALI), Itajaí, Brazil
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Jan N, Shah H, Khan S, Nasar F, Madni A, Badshah SF, Ali A, Bostanudin MF. Old drug, new tricks: polymer-based nanoscale systems for effective cytarabine delivery. NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY 2024; 397:3565-3584. [PMID: 38015258 DOI: 10.1007/s00210-023-02865-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Accepted: 11/20/2023] [Indexed: 11/29/2023]
Abstract
Cytarabine, an antimetabolite antineoplastic agent, has been utilized to treat various cancers. However, because of its short half-life, low stability, and limited bioavailability, achieving an optimal plasma concentration requires continuous intravenous administration, which can lead to toxicity in normal cells and tissues. Addressing these limitations is crucial to optimize the therapeutic efficacy of cytarabine while minimizing its adverse effects. The use of novel drug delivery systems, such as polymer-based nanocarriers have emerged as promising vehicles for targeted drug delivery due to their unique properties, including high stability, biocompatibility, and tunable release kinetics. In this review, we examine the application of various polymer-based nanocarriers, including polymeric nanoparticles, polymeric micelles, dendrimers, polymer-drug conjugates, and nano-hydrogels, for the delivery of cytarabine. The article highlights the limitations of conventional cytarabine administration which often lead to suboptimal therapeutic outcomes and systemic toxicity. The rationale for using polymer-based nanocarriers is discussed, highlighting their ability to overcome challenges by providing controlled drug release, improved stability, and enhanced targeting capabilities. In summary, this review offers a valuable resource for drug delivery scientists by providing insights into the design principles, formulation strategies, and potential applications of polymer-based nanocarriers that can enhance the therapeutic efficacy of cytarabine.
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Affiliation(s)
- Nasrullah Jan
- Akson College of Pharmacy, Mirpur University of Science and Technology (MUST), Mirpur, 10250, Azad Kashmir, Pakistan.
- Department of Pharmacy, The University of Chenab, Gujrat, 50700, Punjab, Pakistan.
| | - Hassan Shah
- Department of Pharmacy, The University of Chenab, Gujrat, 50700, Punjab, Pakistan
| | - Safiullah Khan
- Department of Pharmaceutics, Faculty of Pharmacy, The Islamia University of Bahawalpur, Bahawalpur, 63100, Punjab, Pakistan
- Cadson College of Pharmacy, Kharian, 50090, Punjab, Pakistan
| | - Faiza Nasar
- Akson College of Pharmacy, Mirpur University of Science and Technology (MUST), Mirpur, 10250, Azad Kashmir, Pakistan
| | - Asadullah Madni
- Department of Pharmaceutics, Faculty of Pharmacy, The Islamia University of Bahawalpur, Bahawalpur, 63100, Punjab, Pakistan
| | - Syed Faisal Badshah
- Department of Pharmacy, Faculty of Medical and Health Sciences, University of Poonch, Rawalakot, 12350, Azad Kashmir, Pakistan
| | - Ahsan Ali
- Department of Pharmaceutics, Faculty of Pharmacy, The Islamia University of Bahawalpur, Bahawalpur, 63100, Punjab, Pakistan
| | - Mohammad F Bostanudin
- College of Pharmacy, Al Ain University, 112612, Abu Dhabi, United Arab Emirates
- AAU Health and Biomedical Research Center, Al Ain University, 112612, Abu Dhabi, United Arab Emirates
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Kumar A, Singh AK, Singh H, Vijayan V, Kumar D, Naik J, Thareja S, Yadav JP, Pathak P, Grishina M, Verma A, Khalilullah H, Jaremko M, Emwas AH, Kumar P. Nitrogen Containing Heterocycles as Anticancer Agents: A Medicinal Chemistry Perspective. Pharmaceuticals (Basel) 2023; 16:299. [PMID: 37259442 PMCID: PMC9965678 DOI: 10.3390/ph16020299] [Citation(s) in RCA: 37] [Impact Index Per Article: 37.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Revised: 01/26/2023] [Accepted: 01/28/2023] [Indexed: 07/30/2023] Open
Abstract
Cancer is one of the major healthcare challenges across the globe. Several anticancer drugs are available on the market but they either lack specificity or have poor safety, severe side effects, and suffer from resistance. So, there is a dire need to develop safer and target-specific anticancer drugs. More than 85% of all physiologically active pharmaceuticals are heterocycles or contain at least one heteroatom. Nitrogen heterocycles constituting the most common heterocyclic framework. In this study, we have compiled the FDA approved heterocyclic drugs with nitrogen atoms and their pharmacological properties. Moreover, we have reported nitrogen containing heterocycles, including pyrimidine, quinolone, carbazole, pyridine, imidazole, benzimidazole, triazole, β-lactam, indole, pyrazole, quinazoline, quinoxaline, isatin, pyrrolo-benzodiazepines, and pyrido[2,3-d]pyrimidines, which are used in the treatment of different types of cancer, concurrently covering the biochemical mechanisms of action and cellular targets.
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Affiliation(s)
- Adarsh Kumar
- Department of Pharmaceutical Sciences and Natural Products, Central University of Punjab, Ghudda, Bathinda 151401, India
| | - Ankit Kumar Singh
- Department of Pharmaceutical Sciences and Natural Products, Central University of Punjab, Ghudda, Bathinda 151401, India
| | - Harshwardhan Singh
- Department of Pharmaceutical Sciences and Natural Products, Central University of Punjab, Ghudda, Bathinda 151401, India
| | - Veena Vijayan
- Department of Pharmaceutical Sciences and Natural Products, Central University of Punjab, Ghudda, Bathinda 151401, India
| | - Deepak Kumar
- Department of Pharmaceutical Sciences and Natural Products, Central University of Punjab, Ghudda, Bathinda 151401, India
| | - Jashwanth Naik
- Department of Pharmaceutical Sciences and Natural Products, Central University of Punjab, Ghudda, Bathinda 151401, India
| | - Suresh Thareja
- Department of Pharmaceutical Sciences and Natural Products, Central University of Punjab, Ghudda, Bathinda 151401, India
| | - Jagat Pal Yadav
- Pharmacology Research Laboratory, Faculty of Pharmaceutical Sciences, Rama University, Kanpur 209217, India
| | - Prateek Pathak
- Laboratory of Computational Modeling of Drugs, Higher Medical and Biological School, South Ural State University, 454008 Chelyabinsk, Russia
| | - Maria Grishina
- Laboratory of Computational Modeling of Drugs, Higher Medical and Biological School, South Ural State University, 454008 Chelyabinsk, Russia
| | - Amita Verma
- Bioorganic and Medicinal Chemistry Research Laboratory, Department of Pharmaceutical Sciences, Sam Higginbottom University of Agriculture, Technology and Sciences, Prayagraj 211007, India
| | - Habibullah Khalilullah
- Department of Pharmaceutical Chemistry and Pharmacognosy, Unaizah College of Pharmacy, Qassim University, Unayzah 51911, Saudi Arabia
| | - Mariusz Jaremko
- Smart-Health Initiative and Red Sea Research Center, Division of Biological and Environmental Sciences and Engineering, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia
| | - Abdul-Hamid Emwas
- Core Labs, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia
| | - Pradeep Kumar
- Department of Pharmaceutical Sciences and Natural Products, Central University of Punjab, Ghudda, Bathinda 151401, India
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Astaxanthin decreases the growth-inhibitory dose of cytarabine and inflammatory response in the acute lymphoblastic leukemia cell line NALM-6. Mol Biol Rep 2022; 49:6415-6422. [PMID: 35441937 DOI: 10.1007/s11033-022-07452-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Accepted: 04/05/2022] [Indexed: 10/18/2022]
Abstract
BACKGROUND In spite of the great progress in acute lymphoblastic leukemia (ALL) treatment, a large number of patients still suffer from chemotherapy drug toxicity. As a routine medication for ALL treatment, cytarabine (Ara-C) has many side effects on the patients. Astaxanthin (ASX), on the other hand, is a carotenoid with antioxidant, anti-inflammatory and anti-cancer properties. PURPOSE The present study investigated the effects of ASX in combination with Ara-C on cell proliferation, apoptosis induction, and cell cycle arrest in NALM-6 cell line. METHODS NALM6 cells were treated with different concentrations of ASX, Ara-C, and their co-treatment. Cytotoxic effects were evaluated using MTT assay. After treating the cells with the IC50 dose of ASX, Ara-C and their co-treatment, we studied apoptosis induction, cell cycle arrest, and expression of apoptotic, anti-apoptotic, and inflammatory genes. RESULT MTT assay demonstrated that co-treatment of cytarabine and ASX had greater cytotoxicity effects compared with the IC50 dose of Ara-C alone. After 48 h of treatment of NALM-6 cells with the combination dose, expression levels of apoptotic genes (P53, caspase-8, 3), the anti-apoptotic gene (Bcl-xL) and inflammatory genes (IL-6, TNF-α) changed significantly compared to the untreated group (p < 0.05). CONCLUSIONS Co-treatment of ASX and Ara-C has synergism effects on apoptosis pathways, cell proliferation inhibition, and decreased inflammation.
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FDA-Approved Drugs for Hematological Malignancies-The Last Decade Review. Cancers (Basel) 2021; 14:cancers14010087. [PMID: 35008250 PMCID: PMC8750348 DOI: 10.3390/cancers14010087] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Revised: 12/16/2021] [Accepted: 12/20/2021] [Indexed: 12/21/2022] Open
Abstract
Simple Summary Hematological malignancies are diseases involving the abnormal production of blood cells. The aim of the study is to collect comprehensive information on new drugs used in the treatment of blood cancers which have introduced into therapy in the last decade. The approved drugs were analyzed for their structures and their biological activity mechanisms. Abstract Hematological malignancies, also referred to as blood cancers, are a group of diseases involving abnormal cell growth and persisting in the blood, lymph nodes, or bone marrow. The development of new targeted therapies including small molecule inhibitors, monoclonal antibodies, bispecific T cell engagers, antibody-drug conjugates, recombinant immunotoxins, and, finally, Chimeric Antigen Receptor T (CAR-T) cells has improved the clinical outcomes for blood cancers. In this review, we summarized 52 drugs that were divided into small molecule and macromolecule agents, approved by the Food and Drug Administration (FDA) in the period between 2011 and 2021 for the treatment of hematological malignancies. Forty of them have also been approved by the European Medicines Agency (EMA). We analyzed the FDA-approved drugs by investigating both their structures and mechanisms of action. It should be emphasized that the number of targeted drugs was significantly higher (46 drugs) than chemotherapy agents (6 drugs). We highlight recent advances in the design of drugs that are used to treat hematological malignancies, which make them more effective and less toxic.
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Antineoplastics Encapsulated in Nanostructured Lipid Carriers. Molecules 2021; 26:molecules26226929. [PMID: 34834022 PMCID: PMC8619566 DOI: 10.3390/molecules26226929] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Revised: 11/06/2021] [Accepted: 11/11/2021] [Indexed: 12/14/2022] Open
Abstract
Ideally, antineoplastic treatment aims to selectively eradicate cancer cells without causing systemic toxicity. A great number of antineoplastic agents (AAs) are available nowadays, with well-defined therapeutic protocols. The poor bioavailability, non-selective action, high systemic toxicity, and lack of effectiveness of most AAs have stimulated the search for novel chemotherapy protocols, including technological approaches that provide drug delivery systems (DDS) for gold standard medicines. Nanostructured lipid carriers (NLC) are DDS that contain a core of solid and lipid liquids stabilised by surfactants. NLC have high upload capacity for lipophilic drugs, such as the majority of AAs. These nanoparticles can be prepared with a diversity of biocompatible (synthetic or natural) lipid blends, administered by different routes and functionalised for targeting purposes. This review focused on the research carried out from 2000 to now, regarding NLC formulations for AAs (antimetabolites, antimitotics, alkylating agents, and antibiotics) encapsulation, with special emphasis on studies carried out in vivo. NLC systems for codelivery of AAs were also considered, as well as those for non-classical drugs and therapies (natural products and photosensitisers). NLC have emerged as powerful DDS to improve the bioavailability, targeting and efficacy of antineoplastics, while decreasing their toxic effect in the treatment of different types of cancer.
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7
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Messikommer A, Seipel K, Byrne S, Valk PJM, Pabst T, Luedtke NW. RNA Targeting in Acute Myeloid Leukemia. ACS Pharmacol Transl Sci 2020; 3:1225-1232. [PMID: 33344899 DOI: 10.1021/acsptsci.0c00120] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Indexed: 12/12/2022]
Abstract
Nucleosides and their analogues constitute an essential family of anticancer drugs. DNA has been the presumptive target of the front-line prodrug for acute myeloid leukemia (AML), cytarabine (ara-C), since the 1980s. Here, the biomolecular targeting of ara-C was evaluated in primary white blood cells using the ara-C mimic "AzC" and azide-alkyne "click" reactions. Fluorescent staining and microscopy revealed that metabolic incorporation of AzC into primary white blood cells was unexpectedly enhanced by the DNA polymerase inhibitor aphidicholine. According to RNaseH digestion and pull-down-and-release experiments, AzC was incorporated into short RNA fragments bound to DNA in peripheral blood monocytes (PBMCs) collected from all six healthy human donors tested. Samples from 22 AML patients (French-American-British classes M4 and M5) exhibited much more heterogeneity, with 27% incorporating AzC into RNA and 55% into DNA. The overall survival of AML patients whose samples incorporated AzC into RNA was approximately 3-fold higher as compared to that of the DNA cohort (p ≤ 0.056, χ2 = 3.65). These results suggest that the RNA primers of DNA synthesis are clinically favorable targets of ara-C, and that variable incorporation of nucleoside drugs into DNA versus RNA may enable future patient stratification into treatment-specific subgroups.
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Affiliation(s)
| | - Katja Seipel
- Department of Medical Oncology, University Hospital Inselspital and University of Bern, CH-3010 Bern, Switzerland
| | - Stephen Byrne
- Department of Chemistry, University of Zurich, CH-8057 Zurich, Switzerland
| | - Peter J M Valk
- Department of Hematology, Erasmus University Medical Center, 3000 CA Rotterdam, Netherlands
| | - Thomas Pabst
- Department of Medical Oncology, University Hospital Inselspital and University of Bern, CH-3010 Bern, Switzerland
| | - Nathan W Luedtke
- Department of Chemistry, University of Zurich, CH-8057 Zurich, Switzerland.,Department of Chemistry, McGill University, Montreal, Quebec H3A 0B8, Canada.,Department of Pharmacology and Therapeutics, McGill University, Montreal, Quebec H3A 1A3, Canada
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From Seabed to Bedside: A Review on Promising Marine Anticancer Compounds. Biomolecules 2020; 10:biom10020248. [PMID: 32041255 PMCID: PMC7072248 DOI: 10.3390/biom10020248] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Revised: 01/29/2020] [Accepted: 02/04/2020] [Indexed: 02/08/2023] Open
Abstract
The marine environment represents an outstanding source of antitumoral compounds and, at the same time, remains highly unexplored. Organisms living in the sea synthesize a wide variety of chemicals used as defense mechanisms. Interestingly, a large number of these compounds exert excellent antitumoral properties and have been developed as promising anticancer drugs that have later been approved or are currently under validation in clinical trials. However, due to the high need for these compounds, new methodologies ensuring its sustainable supply are required. Also, optimization of marine bioactives is an important step for their success in the clinical setting. Such optimization involves chemical modifications to improve their half-life in circulation, potency and tumor selectivity. In this review, we outline the most promising marine bioactives that have been investigated in cancer models and/or tested in patients as anticancer agents. Moreover, we describe the current state of development of anticancer marine compounds and discuss their therapeutic limitations as well as different strategies used to overcome these limitations. The search for new marine antitumoral agents together with novel identification and chemical engineering approaches open the door for novel, more specific and efficient therapeutic agents for cancer treatment.
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Quorum Sensing Inhibition by Marine Bacteria. Mar Drugs 2019; 17:md17070427. [PMID: 31340463 PMCID: PMC6669520 DOI: 10.3390/md17070427] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2019] [Revised: 07/18/2019] [Accepted: 07/19/2019] [Indexed: 01/05/2023] Open
Abstract
Antibiotic resistance has been increasingly reported for a wide variety of bacteria of clinical significance. This widespread problem constitutes one of the greatest challenges of the twenty-first century. Faced with this issue, clinicians and researchers have been persuaded to design novel strategies in order to try to control pathogenic bacteria. Therefore, the discovery and elucidation of the mechanisms underlying bacterial pathogenesis and intercellular communication have opened new perspectives for the development of alternative approaches. Antipathogenic and/or antivirulence therapies based on the interruption of quorum sensing pathways are one of several such promising strategies aimed at disarming rather than at eradicating bacterial pathogens during the course of colonization and infection. This review describes mechanisms of bacterial communication involved in biofilm formation. An overview of the potential of marine bacteria and their bioactive components as QS inhibitors is further provided.
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Nonspecific nanocarriers for doxorubicin and cytarabine in the presence of fatted and defatted human albumin. Part I. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.01.085] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Weiss VU, Wieland K, Schwaighofer A, Lendl B, Allmaier G. Native Nano-electrospray Differential Mobility Analyzer (nES GEMMA) Enables Size Selection of Liposomal Nanocarriers Combined with Subsequent Direct Spectroscopic Analysis. Anal Chem 2019; 91:3860-3868. [PMID: 30735037 PMCID: PMC6427476 DOI: 10.1021/acs.analchem.8b04252] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
![]()
Gas-phase
electrophoresis employing a nano-electrospray differential
mobility analyzer (nES DMA), aka gas-phase electrophoretic mobility
molecular analyzer (nES GEMMA), enables nanoparticle separation in
the gas-phase according to their surface-dry diameter with number-based
concentration detection. Moreover, particles in the nanometer
size range can be collected after size selection on supporting materials.
It has been shown by subsequent analyses employing orthogonal methods,
for instance, microscopic or antibody-based techniques, that the surface
integrity of collected analytes remains intact. Additionally, native
nES GEMMA demonstrated its applicability for liposome characterization.
Liposomes are nanometer-sized, biodegradable, and rather labile carriers
(nanoobjects) consisting of a lipid bilayer encapsulating an aqueous
lumen. In nutritional and pharmaceutical applications, these vesicles
allow shielded, targeted transport and sustained release of bioactive
cargo material. To date, cargo quantification is based on bulk measurements
after bilayer rupture. In this context, we now compare capillary electrophoresis
and spectroscopic characterization of vesicles in solution (bulk measurements)
to the possibility of spectroscopic investigation of individual, size-separated/collected
liposomes after nES GEMMA. Surface-dried, size-selected vesicles were
collected intact on calcium fluoride (CaF2) substrates
and zinc selenide (ZnSe) prisms, respectively, for subsequent spectroscopic
investigation. Our proof-of-principle study demonstrates that the
off-line hyphenation of gas-phase electrophoresis and confocal Raman
spectroscopy allows detection of isolated, nanometer-sized soft material/objects.
Additionally, atomic force microscopy-infrared spectroscopy (AFM-IR)
as an advanced spectroscopic system was employed to access molecule-specific
information with nanoscale lateral resolution. The off-line hyphenation
of nES GEMMA and AFM-IR is introduced to enable chemical imaging of
single, i.e., individual, liposome particles.
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Affiliation(s)
- Victor U Weiss
- Institute of Chemical Technologies and Analytics , Vienna University of Technology (TU Wien) , A-1060 Vienna , Austria
| | - Karin Wieland
- Institute of Chemical Technologies and Analytics , Vienna University of Technology (TU Wien) , A-1060 Vienna , Austria
| | - Andreas Schwaighofer
- Institute of Chemical Technologies and Analytics , Vienna University of Technology (TU Wien) , A-1060 Vienna , Austria
| | - Bernhard Lendl
- Institute of Chemical Technologies and Analytics , Vienna University of Technology (TU Wien) , A-1060 Vienna , Austria
| | - Guenter Allmaier
- Institute of Chemical Technologies and Analytics , Vienna University of Technology (TU Wien) , A-1060 Vienna , Austria
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Raj R, Raj PM, Ram A. Nanosized ethanol based malleable liposomes of cytarabine to accentuate transdermal delivery: formulation optimization,in vitroskin permeation andin vivobioavailability. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2018; 46:951-963. [DOI: 10.1080/21691401.2018.1473414] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
Affiliation(s)
- Rakesh Raj
- Institute of Pharmaceutical Sciences, Guru Ghasidas Vishwavidyalaya (A Central University), Bilaspur, C.G., India
| | - Pooja Mongia Raj
- Institute of Pharmaceutical Sciences, Guru Ghasidas Vishwavidyalaya (A Central University), Bilaspur, C.G., India
| | - Alpana Ram
- Institute of Pharmaceutical Sciences, Guru Ghasidas Vishwavidyalaya (A Central University), Bilaspur, C.G., India
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Broto M, Galve R, Marco MP. Bioanalytical methods for cytostatic therapeutic drug monitoring and occupational exposure assessment. Trends Analyt Chem 2017. [DOI: 10.1016/j.trac.2017.05.005] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Liu J, Jiang Y, Cui Y, Xu C, Ji X, Luan Y. Cytarabine-AOT catanionic vesicle-loaded biodegradable thermosensitive hydrogel as an efficient cytarabine delivery system. Int J Pharm 2014; 473:560-71. [DOI: 10.1016/j.ijpharm.2014.07.032] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2014] [Revised: 07/16/2014] [Accepted: 07/23/2014] [Indexed: 10/25/2022]
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