1
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Gao Y, Shelling AN, Nolan E, Porter D, Leung E, Wu Z. Liposome-enabled bufalin and doxorubicin combination therapy for trastuzumab-resistant breast cancer with a focus on cancer stem cells. J Liposome Res 2024; 34:489-506. [PMID: 38269490 DOI: 10.1080/08982104.2024.2305866] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2023] [Accepted: 01/10/2024] [Indexed: 01/26/2024]
Abstract
Breast cancer stem cells (BCSCs) play a key role in therapeutic resistance in breast cancer treatments and disease recurrence. This study aimed to develop a combination therapy loaded with pH-sensitive liposomes to kill both BCSCs and the okbulk cancer cells using trastuzumab-sensitive and resistant human epidermal growth factor receptor 2 positive (HER2+) breast cancer cell models. The anti-BCSCs effect and cytotoxicity of all-trans retinoic acid, salinomycin, and bufalin alone or in combination with doxorubicin were compared in HER2+ cell line BT-474 and a validated trastuzumab-resistant cell line, BT-474R. The most potent anti-BCSC agent was selected and loaded into a pH-sensitive liposome system. The effects of the liposomal combination on BCSCs and bulk cancer cells were assessed. Compared with BT-474, the aldehyde dehydrogenase positive BCSC population was elevated in BT-474R (3.9 vs. 23.1%). Bufalin was the most potent agent and suppressed tumorigenesis of BCSCs by ∼50%, and showed strong synergism with doxorubicin in both BT-474 and BT-474R cell lines. The liposomal combination of bufalin and doxorubicin significantly reduced the BCSC population size by 85%, and inhibited both tumorigenesis and self-renewal, although it had little effect on the migration and invasiveness. The cytotoxicity against the bulk cancer cells was also enhanced by the liposomal combination than either formulation alone in both cell lines (p < 0.001). The liposomal bufalin and doxorubicin combination therapy may effectively target both BCSCs and bulk cancer cells for a better outcome in trastuzumab-resistant HER2+ breast cancer.
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Affiliation(s)
- Yu Gao
- Faculty of Medical and Health Sciences, School of Pharmacy, The University of Auckland, Auckland, New Zealand
| | - Andrew N Shelling
- Faculty of Medical and Health Sciences, School of Medicine, The University of Auckland, Auckland, New Zealand
| | - Emma Nolan
- Faculty of Medical and Health Sciences, Auckland Cancer Society Research Centre, The University of Auckland, Auckland, New Zealand
| | - David Porter
- Auckland Regional Cancer and Blood Service, Auckland City Hospital, Auckland, New Zealand
| | - Euphemia Leung
- Faculty of Medical and Health Sciences, Auckland Cancer Society Research Centre, The University of Auckland, Auckland, New Zealand
| | - Zimei Wu
- Faculty of Medical and Health Sciences, School of Pharmacy, The University of Auckland, Auckland, New Zealand
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2
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Zhu K, Gispert Contamina I, Ces O, Barter LMC, Hindley JW, Elani Y. Magnetic Modulation of Biochemical Synthesis in Synthetic Cells. J Am Chem Soc 2024; 146:13176-13182. [PMID: 38691505 PMCID: PMC11099998 DOI: 10.1021/jacs.4c00845] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2024] [Revised: 03/19/2024] [Accepted: 04/09/2024] [Indexed: 05/03/2024]
Abstract
Synthetic cells can be constructed from diverse molecular components, without the design constraints associated with modifying 'living' biological systems. This can be exploited to generate cells with abiotic components, creating functionalities absent in biology. One example is magnetic responsiveness, the activation and modulation of encapsulated biochemical processes using a magnetic field, which is absent from existing synthetic cell designs. This is a critical oversight, as magnetic fields are uniquely bio-orthogonal, noninvasive, and highly penetrative. Here, we address this by producing artificial magneto-responsive organelles by coupling thermoresponsive membranes with hyperthermic Fe3O4 nanoparticles and embedding them in synthetic cells. Combining these systems enables synthetic cell microreactors to be built using a nested vesicle architecture, which can respond to alternating magnetic fields through in situ enzymatic catalysis. We also demonstrate the modulation of biochemical reactions by using different magnetic field strengths and the potential to tune the system using different lipid compositions. This platform could unlock a wide range of applications for synthetic cells as programmable micromachines in biomedicine and biotechnology.
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Affiliation(s)
- Karen
K. Zhu
- Department
of Chemistry, Imperial College London, Molecular
Sciences Research Hub, White City, London W12
0BZ, U.K.
- Department
of Chemical Engineering, Imperial College
London, South Kensington, London SW7 2AZ, U.K.
- fabriCELL, Imperial
College London, Molecular Sciences Research
Hub, White City, London W12 0BZ, U.K.
- Institute
of Chemical Biology, Imperial College London,
Molecular Sciences Research Hub, White City, London W12
0BZ, U.K.
| | - Ignacio Gispert Contamina
- Department
of Chemical Engineering, Imperial College
London, South Kensington, London SW7 2AZ, U.K.
- fabriCELL, Imperial
College London, Molecular Sciences Research
Hub, White City, London W12 0BZ, U.K.
| | - Oscar Ces
- Department
of Chemistry, Imperial College London, Molecular
Sciences Research Hub, White City, London W12
0BZ, U.K.
- fabriCELL, Imperial
College London, Molecular Sciences Research
Hub, White City, London W12 0BZ, U.K.
- Institute
of Chemical Biology, Imperial College London,
Molecular Sciences Research Hub, White City, London W12
0BZ, U.K.
| | - Laura M. C. Barter
- Department
of Chemistry, Imperial College London, Molecular
Sciences Research Hub, White City, London W12
0BZ, U.K.
- Institute
of Chemical Biology, Imperial College London,
Molecular Sciences Research Hub, White City, London W12
0BZ, U.K.
| | - James W. Hindley
- Department
of Chemistry, Imperial College London, Molecular
Sciences Research Hub, White City, London W12
0BZ, U.K.
- fabriCELL, Imperial
College London, Molecular Sciences Research
Hub, White City, London W12 0BZ, U.K.
- Institute
of Chemical Biology, Imperial College London,
Molecular Sciences Research Hub, White City, London W12
0BZ, U.K.
| | - Yuval Elani
- Department
of Chemical Engineering, Imperial College
London, South Kensington, London SW7 2AZ, U.K.
- fabriCELL, Imperial
College London, Molecular Sciences Research
Hub, White City, London W12 0BZ, U.K.
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3
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Barzegar-Fallah A, Gandhi K, Rizwan SB, Slatter TL, Reynolds JNJ. Harnessing Ultrasound for Targeting Drug Delivery to the Brain and Breaching the Blood–Brain Tumour Barrier. Pharmaceutics 2022; 14:pharmaceutics14102231. [PMID: 36297666 PMCID: PMC9607160 DOI: 10.3390/pharmaceutics14102231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Revised: 10/11/2022] [Accepted: 10/17/2022] [Indexed: 11/16/2022] Open
Abstract
Despite significant advances in developing drugs to treat brain tumours, achieving therapeutic concentrations of the drug at the tumour site remains a major challenge due to the presence of the blood–brain barrier (BBB). Several strategies have evolved to enhance brain delivery of chemotherapeutic agents to treat tumours; however, most approaches have several limitations which hinder their clinical utility. Promising studies indicate that ultrasound can penetrate the skull to target specific brain regions and transiently open the BBB, safely and reversibly, with a high degree of spatial and temporal specificity. In this review, we initially describe the basics of therapeutic ultrasound, then detail ultrasound-based drug delivery strategies to the brain and the mechanisms by which ultrasound can improve brain tumour therapy. We review pre-clinical and clinical findings from ultrasound-mediated BBB opening and drug delivery studies and outline current therapeutic ultrasound devices and technologies designed for this purpose.
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Affiliation(s)
- Anita Barzegar-Fallah
- Department of Anatomy, School of Biomedical Sciences, University of Otago, Dunedin 9016, New Zealand
- Brain Health Research Centre, University of Otago, Dunedin 9016, New Zealand
| | - Kushan Gandhi
- Department of Anatomy, School of Biomedical Sciences, University of Otago, Dunedin 9016, New Zealand
- Brain Health Research Centre, University of Otago, Dunedin 9016, New Zealand
| | - Shakila B. Rizwan
- Brain Health Research Centre, University of Otago, Dunedin 9016, New Zealand
- School of Pharmacy, University of Otago, Dunedin 9016, New Zealand
| | - Tania L. Slatter
- Department of Pathology, Dunedin School of Medicine, University of Otago, Dunedin 9016, New Zealand
| | - John N. J. Reynolds
- Department of Anatomy, School of Biomedical Sciences, University of Otago, Dunedin 9016, New Zealand
- Brain Health Research Centre, University of Otago, Dunedin 9016, New Zealand
- Correspondence: ; Tel.: +64-3-479-5781; Fax: +64-3-479-7254
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4
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pH-Sensitive Liposomes for Enhanced Cellular Uptake and Cytotoxicity of Daunorubicin in Melanoma (B16-BL6) Cell Lines. Pharmaceutics 2022; 14:pharmaceutics14061128. [PMID: 35745701 PMCID: PMC9228428 DOI: 10.3390/pharmaceutics14061128] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Revised: 05/13/2022] [Accepted: 05/23/2022] [Indexed: 02/05/2023] Open
Abstract
Daunorubicin (DNR) was delivered using a pH-sensitive liposomal system in B16-BL6 melanoma cell lines for enhanced cytotoxic effects. DNR was encapsulated within liposomes and CL as a component of the lipid bilayer. PEGylated pH-sensitive liposomes, containing CL, were prepared in the molar ratio of 40:30:5:17:8 for DOPE/cholesterol/DSPE-mPEG (2000)/CL/SA using the lipid film hydration method and loaded with DNR (drug: lipid ratio of 1:5). The CL liposomes exhibited high drug encapsulation efficiency (>90%), a small size (~94 nm), narrow size distribution (polydispersity index ~0.16), and a rapid release profile at acidic pH (within 1 h). Furthermore, the CL liposomes exhibited 12.5- and 2.5-fold higher cytotoxicity compared to DNR or liposomes similar to DaunoXome®. This study provides a basis for developing DNR pH-sensitive liposomes for melanoma treatment.
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5
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Kaushik N, Borkar SB, Nandanwar SK, Panda PK, Choi EH, Kaushik NK. Nanocarrier cancer therapeutics with functional stimuli-responsive mechanisms. J Nanobiotechnology 2022; 20:152. [PMID: 35331246 PMCID: PMC8944113 DOI: 10.1186/s12951-022-01364-2] [Citation(s) in RCA: 30] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Accepted: 03/09/2022] [Indexed: 12/12/2022] Open
Abstract
Presently, nanocarriers (NCs) have gained huge attention for their structural ability, good biocompatibility, and biodegradability. The development of effective NCs with stimuli-responsive properties has acquired a huge interest among scientists. When developing drug delivery NCs, the fundamental goal is to tackle the delivery-related problems associated with standard chemotherapy and to carry medicines to the intended sites of action while avoiding undesirable side effects. These nanocarriers were able of delivering drugs to tumors through regulating their pH, temperature, enzyme responsiveness. With the use of nanocarriers, chemotherapeutic drugs could be supplied to tumors more accurately that can equally encapsulate and deliver them. Material carriers for chemotherapeutic medicines are discussed in this review keeping in viewpoint of the structural properties and targeting methods that make these carriers more therapeutically effective, in addition to metabolic pathways triggered by drug-loaded NCs. Largely, the development of NCs countering to endogenous and exogenous stimuli in tumor regions and understanding of mechanisms would encourage the progress for tumor therapy and precision diagnosis in future.
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Affiliation(s)
- Neha Kaushik
- Department of Biotechnology, College of Engineering, The University of Suwon, Hwaseong, 18323, Republic of Korea.
| | - Shweta B Borkar
- Department of Electrical and Biological Physics, Plasma Bioscience Research Center, Kwangwoon University, Seoul, 01897, Republic of Korea
| | - Sondavid K Nandanwar
- Department of Basic Science Research Institute, Pukyong National University, Busan, 48513, Korea
| | - Pritam Kumar Panda
- Condensed Matter Theory Group, Department of Physics and Astronomy, Uppsala University, Box 516, S-75120, Uppsala, Sweden
| | - Eun Ha Choi
- Department of Electrical and Biological Physics, Plasma Bioscience Research Center, Kwangwoon University, Seoul, 01897, Republic of Korea
| | - Nagendra Kumar Kaushik
- Department of Electrical and Biological Physics, Plasma Bioscience Research Center, Kwangwoon University, Seoul, 01897, Republic of Korea.
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6
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Alrbyawi H, Poudel I, Annaji M, Arnold RD, Tiwari AK, Babu RJ. Recent Advancements of Stimuli-Responsive Targeted Liposomal Formulations for Cancer Drug Delivery. Pharm Nanotechnol 2022; 10:3-23. [PMID: 35156590 DOI: 10.2174/2211738510666220214102626] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Revised: 01/09/2022] [Accepted: 01/18/2022] [Indexed: 11/22/2022]
Abstract
Liposomes have gained attention as a well-accepted nanocarrier for several chemotherapeutic drugs and are considered a drug delivery system of choice for a wide range of products. These amphipathic spherical vesicles primarily consist of one or more phospholipid bilayers, showing promise for drug delivery of both hydrophilic and hydrophobic components in addition to unique properties such as biocompatibility, biodegradability, low toxicity, and non-immunogenicity. Recent advances in liposomes are mainly centered on chemical and structural modification with the multifunctional approach to target the cancer cells activating the offensive mechanisms within the proximity of the tumors. Stimuli-responsive liposomes are a precisive approach to deliver and release chemotherapeutic drugs in the tumor site in a controlled fashion, thus reducing damage to normal tissues and preventing the side effects of the conventional chemotherapy regimen. The unique characteristics in the tumor microenvironment facilitate applying an endogenous stimulus (pH, redox potential, or enzymatic activity) to trigger the release of the drug, or external stimulus (heat or light) could be applied to tailor the drug release from liposomes. This review focuses on newer developments in stimuli-sensitive liposomal drug delivery systems designed to apply either exogenous (temperature, light, and magnetic field) or endogenous (pH changes, enzymatic triggers, or redox potential) approaches.
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Affiliation(s)
- Hamad Alrbyawi
- Department of Drug Discovery and Development, Harrison School of Pharmacy, Auburn University, AL 36849, USA
- Pharmaceutics and Pharmaceutical Technology Department, College of Pharmacy, Taibah University, Medina, Saudi Arabia
| | - Ishwor Poudel
- Department of Drug Discovery and Development, Harrison School of Pharmacy, Auburn University, AL 36849, USA
| | - Manjusha Annaji
- Department of Drug Discovery and Development, Harrison School of Pharmacy, Auburn University, AL 36849, USA
| | - Robert D Arnold
- Department of Drug Discovery and Development, Harrison School of Pharmacy, Auburn University, AL 36849, USA
| | - Amit K Tiwari
- Department of Pharmacology and Experimental Therapeutics, The University of Toledo, Toledo, Ohio, 43614, USA
| | - R Jayachandra Babu
- Department of Drug Discovery and Development, Harrison School of Pharmacy, Auburn University, AL 36849, USA
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7
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Construction of Hierarchical-Targeting pH-Sensitive Liposomes to Reverse Chemotherapeutic Resistance of Cancer Stem-like Cells. Pharmaceutics 2021; 13:pharmaceutics13081205. [PMID: 34452166 PMCID: PMC8399523 DOI: 10.3390/pharmaceutics13081205] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Revised: 07/29/2021] [Accepted: 08/02/2021] [Indexed: 12/20/2022] Open
Abstract
Cancer stem-like cells (CSLCs) have been considered to be one of the main problems in tumor treatment owing to high tumorigenicity and chemotherapy resistance. In this study, we synthesized a novel mitochondria-target derivate, triphentlphosphonium-resveratrol (TPP-Res), and simultaneously encapsulated it with doxorubicin (Dox) in pH-sensitive liposomes (PSL (Dox/TPP-Res)), to reverse chemotherapeutic resistance of CSLCs. PSL (Dox/TPP-Res) was approximately 165 nm in size with high encapsulation efficiency for both Dox and TPP-Res. Cytotoxicity assay showed that the optimal synergistic effect was the drug ratio of 1:1 for TPP-Res and Dox. Cellular uptake and intracellular trafficking assay indicated that PSL (Dox/TPP-Res) could release drugs in acidic endosomes, followed by mitochondrial targeting of TPP-Res and nucleus transports for Dox. The mechanisms for reversing the resistance in CSLCs were mainly attributed to a synergistic effect for reduction of mitochondrial membrane potential, activation of caspase cascade reaction, reduction of ATP level and suppression of the Wnt/β-catenin pathway. Further, in vivo assay results demonstrated that the constructed liposomes could efficiently accumulate in the tumor region and possess excellent antineoplastic activity in an orthotopic xenograft tumor model with no evident systemic toxicity. The above experimental results determined that PSL (Dox/TPP-Res) provides a new method for the treatment of heterogenecity tumors.
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8
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Lafi Z, Alshaer W, Hatmal MM, Zihlif M, Alqudah DA, Nsairat H, Azzam H, Aburjai T, Bustanji Y, Awidi A. Aptamer-functionalized pH-sensitive liposomes for a selective delivery of echinomycin into cancer cells. RSC Adv 2021; 11:29164-29177. [PMID: 35479561 PMCID: PMC9040599 DOI: 10.1039/d1ra05138e] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2021] [Accepted: 08/14/2021] [Indexed: 12/11/2022] Open
Abstract
Echinomycin (quinomycin A) is a peptide antibiotic from the quinoxaline family, which has a DNA bifunctional intercalating activity and an inhibitor of hypoxia-inducible factor (HIF1α). Echinomycin was discovered in 1957 as a potent antitumor agent; however, it was not successful in clinical use due to its low water solubility and short half-life. To revitalize this potent drug, it is important to increase its aqueous solubility and bioavailability. In this study, echinomycin was loaded into PEGylated pH-sensitive liposomes (PEGLippH) and functionalized with anti-nucleolin aptamer (AptNCL) for selective targeting and pH-responsive release of echinomycin into cancer cells. Echinomycin was complexed with γ-cyclodextrin (ECγCD) to enhance its water solubility and then encapsulated into pH-sensitive liposomes (PEGLippH-ECγCD). Then, liposomes were functionalized with AptNCL (AptNCL-PEGLippH-ECγCD) and the successful functionalization was confirmed by dynamic light scattering (DLS) measurements and gel electrophoresis. Cellular uptake for AptNCL-PEGLippH was evaluated by flow cytometry analysis using MDA-MB-231, MCF7, A549 cancer cell lines with respect to the normal fibroblast cells. The results showed a higher uptake and selectivity for AptNCL-PEGLippH compared to PEGLippH. The anti-proliferative effects of AptNCL-PEGLippH-ECγCD were more potent than PEGLippH-ECγCD by 3.5, 4, and 5 folds for A549, MDA-MB-231, and MCF7, respectively. Selectivity indices (SI) for AptNCL-PEGLippH-ECγCD for the tumor cell lines compared to the normal cell line after 72 h were MDA-MB-231 (43.3), MCF7 (16.9), and A549 (8.5). Furthermore, SI after 3 h for the three cancer cell lines were 4.7, 2.5, 2.8, respectively. Echinomycin was loaded into PEGylated pH-sensitive liposomes and functionalized with anti-nucleolin aptamer for selective targeting and pH-responsive release of echinomycin into cancer cells.![]()
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Affiliation(s)
- Zainab Lafi
- Faculty of Pharmacy, The Middle East University, Amman, Jordan
- Department of Clinical Pharmacy, Faculty of Pharmacy, The University of Jordan, Amman 11942, Jordan
| | - Walhan Alshaer
- Cell Therapy Center, The University of Jordan, Amman 11942, Jordan
| | - Ma'mon M. Hatmal
- Department of Medical Laboratory Sciences, Faculty of Applied Medical Sciences, The Hashemite University, Zarqa 13133, Jordan
| | - Malek Zihlif
- Department of Pharmacology, Faculty of Medicine, The University of Jordan, Amman 11942, Jordan
| | - Dana A. Alqudah
- Cell Therapy Center, The University of Jordan, Amman 11942, Jordan
| | - Hamdi Nsairat
- Pharmacological and Diagnostic Research Center, Faculty of Pharmacy, Al-Ahliyya Amman University, Amman 19328, Jordan
| | - Hanan Azzam
- HMCSR, The University of Jordan, Amman 11942, Jordan
| | - Talal Aburjai
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, The University of Jordan, Amman 11942, Jordan
| | - Yasser Bustanji
- Department of Basic Medical Sciences, College of Medicine, University of Sharjah, Sharjah 27272, UAE
| | - Abdalla Awidi
- Cell Therapy Center, The University of Jordan, Amman 11942, Jordan
- Department of Internal Medicine, Faculty of Medicine, The University of Jordan, Amman 11942, Jordan
- Department of Hematology and Oncology, Jordan University Hospital, The University of Jordan, Amman 11942, Jordan
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9
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Abri Aghdam M, Bagheri R, Mosafer J, Baradaran B, Hashemzaei M, Baghbanzadeh A, de la Guardia M, Mokhtarzadeh A. Recent advances on thermosensitive and pH-sensitive liposomes employed in controlled release. J Control Release 2019; 315:1-22. [DOI: 10.1016/j.jconrel.2019.09.018] [Citation(s) in RCA: 78] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2019] [Revised: 09/26/2019] [Accepted: 09/27/2019] [Indexed: 12/12/2022]
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10
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Chen Y, Wang L, Guo D, Sheng C, Dai H, Shi X, Zhang W, Huang Q, Peng C, Chen W. A rapid and efficient technique for liposomal and nonliposomal drug pharmacokinetics studies using magnetic nanoprobes and its application to leakage kinetics of liposomes. J Chromatogr A 2018; 1580:2-11. [PMID: 30391033 DOI: 10.1016/j.chroma.2018.10.038] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2018] [Revised: 10/17/2018] [Accepted: 10/17/2018] [Indexed: 10/28/2022]
Abstract
Currently, the pharmacokinetics of liposomes was researched in vivo by measuring the total amount of drug in plasma. This method of using the total drug amount instead of the free drug amount virtually increase the apparent exposure and apparent biological distribution. To solve this problem, we developed a rapid and efficient method by using well-established streptavidin-functional Fe3O4@PDA as the separation nanoprobes to efficiently isolate biotin-labeled DTX-liposomes over 75% from plasma in the presence of magnetic field. The isolation procedure takes only 20 min and the concentration of DTX in liposomes from plasma was determined by LC-MS/MS. The method for the determination of DTX in plasma was linear in the range of 5-5000 ng/mL, and the correlation coefficient was 0.9989. Results obtained in this study clearly demonstrated that the pharmacokinetic parameters of non-liposomal drug and total drug are different in vivo. Therefore, traditional method for studying the pharmacokinetics of liposomes in vivo is unreasonable, and the new method mentioned here provided a strategy for studying the pharmacokinetics of liposomes.
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Affiliation(s)
- Yunna Chen
- Anhui University of Chinese Medicine, Hefei 230012, China; Anhui Academy of Chinese Medicine, Hefei, Anhui 230012, China; Anhui Province Key Laboratory of Chinese Medicinal Formula, Hefei, Anhui 230012, China
| | - Lei Wang
- Anhui University of Chinese Medicine, Hefei 230012, China; Anhui Academy of Chinese Medicine, Hefei, Anhui 230012, China; Anhui Province Key Laboratory of Chinese Medicinal Formula, Hefei, Anhui 230012, China.
| | - Dongdong Guo
- Anhui University of Chinese Medicine, Hefei 230012, China; Anhui Academy of Chinese Medicine, Hefei, Anhui 230012, China
| | - Chenming Sheng
- Anhui University of Chinese Medicine, Hefei 230012, China; Anhui Academy of Chinese Medicine, Hefei, Anhui 230012, China; Anhui Province Key Laboratory of Chinese Medicinal Formula, Hefei, Anhui 230012, China
| | - Haozhi Dai
- Anhui University of Chinese Medicine, Hefei 230012, China; Anhui Academy of Chinese Medicine, Hefei, Anhui 230012, China; Anhui Province Key Laboratory of Chinese Medicinal Formula, Hefei, Anhui 230012, China
| | - Xiaoyan Shi
- Anhui University of Chinese Medicine, Hefei 230012, China; Anhui Academy of Chinese Medicine, Hefei, Anhui 230012, China; Anhui Province Key Laboratory of Chinese Medicinal Formula, Hefei, Anhui 230012, China
| | - Wenjing Zhang
- Anhui University of Chinese Medicine, Hefei 230012, China; Anhui Academy of Chinese Medicine, Hefei, Anhui 230012, China; Anhui Province Key Laboratory of Chinese Medicinal Formula, Hefei, Anhui 230012, China
| | - Qianqian Huang
- Anhui University of Chinese Medicine, Hefei 230012, China; Anhui Academy of Chinese Medicine, Hefei, Anhui 230012, China; Anhui Province Key Laboratory of Chinese Medicinal Formula, Hefei, Anhui 230012, China
| | - Can Peng
- Anhui University of Chinese Medicine, Hefei 230012, China; Anhui Academy of Chinese Medicine, Hefei, Anhui 230012, China; Anhui Province Key Laboratory of Chinese Medicinal Formula, Hefei, Anhui 230012, China
| | - Weidong Chen
- Anhui University of Chinese Medicine, Hefei 230012, China; Anhui Academy of Chinese Medicine, Hefei, Anhui 230012, China; Anhui Province Key Laboratory of Chinese Medicinal Formula, Hefei, Anhui 230012, China.
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11
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Development of doxorubicin hydrochloride loaded pH-sensitive liposomes: Investigation on the impact of chemical nature of lipids and liposome composition on pH-sensitivity. Eur J Pharm Biopharm 2018; 133:331-338. [DOI: 10.1016/j.ejpb.2018.11.001] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2018] [Revised: 10/20/2018] [Accepted: 11/02/2018] [Indexed: 12/11/2022]
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12
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Li L, Wang J, Kong H, Zeng Y, Liu G. Functional biomimetic nanoparticles for drug delivery and theranostic applications in cancer treatment. SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS 2018; 19:771-790. [PMID: 30815042 PMCID: PMC6383616 DOI: 10.1080/14686996.2018.1528850] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2018] [Revised: 09/24/2018] [Accepted: 09/24/2018] [Indexed: 05/17/2023]
Abstract
Nanotechnology has been extensively utilized in the design and development of powerful strategies for drug delivery and cancer theranostic. Nanoplatforms as a drug delivery system have many advantages such as in vivo imaging, combined drug delivery, extended circulation time, and systemic controlled release. The functional biomimetic drug delivery could be realized by incorporating stimuli-responsive (pH, temperature, redox potential, etc.) properties into the nanocarrier system, allowing them to bypass biological barriers and arrive at the targeted area. In this review, we discuss the role of internal stimuli-responsive nanocarrier system for imaging and drug delivery in cancer therapy. The development of internal stimuli-responsive nanoparticles is highlighted for precision drug delivery applications, with a particular focus on in vivo imaging, drug release performance, and therapeutic benefits.
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Affiliation(s)
- Lei Li
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics & Center for Molecular Imaging and Translational Medicine, School of Public Health, Xiamen University, Xiamen, China
| | - Junqing Wang
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics & Center for Molecular Imaging and Translational Medicine, School of Public Health, Xiamen University, Xiamen, China
| | - Hangru Kong
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics & Center for Molecular Imaging and Translational Medicine, School of Public Health, Xiamen University, Xiamen, China
| | - Yun Zeng
- Department of Pharmacology, Xiamen Medical College, Xiamen, China
| | - Gang Liu
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics & Center for Molecular Imaging and Translational Medicine, School of Public Health, Xiamen University, Xiamen, China
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13
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Almurshedi AS, Radwan M, Omar S, Alaiya AA, Badran MM, Elsaghire H, Saleem IY, Hutcheon GA. A novel pH-sensitive liposome to trigger delivery of afatinib to cancer cells: Impact on lung cancer therapy. J Mol Liq 2018. [DOI: 10.1016/j.molliq.2018.03.024] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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14
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Russell LM, Hultz M, Searson PC. Leakage kinetics of the liposomal chemotherapeutic agent Doxil: The role of dissolution, protonation, and passive transport, and implications for mechanism of action. J Control Release 2017; 269:171-176. [PMID: 29122661 DOI: 10.1016/j.jconrel.2017.11.007] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2017] [Revised: 10/25/2017] [Accepted: 11/04/2017] [Indexed: 01/24/2023]
Abstract
Doxil, a liposomal formulation of the chemotherapeutic drug doxorubicin, is FDA-approved for multiple indications. Doxil liposomes are designed to retain doxorubicin in circulation, minimize clearance by the mononuclear phagocyte system, and limit uptake in healthy tissue. Although pharmacokinetic data and survival statistics from clinical trials provide insight into distribution and efficacy, many details of the mechanism of action remain unresolved, despite the importance in translating liposome-based drug delivery systems to other molecules and cargo. Therefore, the objective of this study is to quantitatively assess the kinetics of doxorubicin leakage from Doxil liposomes. In contrast to previous studies, we consider three processes: dissolution of solid doxorubicin, protonation/deprotonation of soluble doxorubicin, and passive transport of neutral doxorubicin across the lipid bilayer of the liposomes. Experiments were performed for Doxil, Doxil-like liposomes, and Doxil-like liposomes with reduced cholesterol and pegylation. To mimic physiological conditions, we also performed experiments in serum and under slightly acidic conditions at pH5. We show that crystalline doxorubicin dissolution can be described by a first order rate constant of 1.0×10-9cms-1 at 37°C. Doxorubicin leakage can be described by first order rate constant for transport across the lipid bilayer with values in the range from 1 to 3×10-12cms-1 at 37°C. Based on these results we discuss implications for the mechanism of action, taking Doxil pharmacokinetics into account.
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Affiliation(s)
- Luisa M Russell
- Department of Materials Science and Engineering, Johns Hopkins University, USA; Institute for Nanobiotechnology, Johns Hopkins University, USA
| | - Margot Hultz
- Department of Materials Science and Engineering, Johns Hopkins University, USA; Institute for Nanobiotechnology, Johns Hopkins University, USA
| | - Peter C Searson
- Department of Materials Science and Engineering, Johns Hopkins University, USA; Institute for Nanobiotechnology, Johns Hopkins University, USA; Department of Oncology, Johns Hopkins University, Baltimore, MD 21218, USA.
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15
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You C, Wu H, Wang M, Zhang Y, Wang J, Luo Y, Zhai L, Sun B, Zhang X, Zhu J. Near-Infrared Light and pH Dual-Responsive Targeted Drug Carrier Based on Core-Crosslinked Polyaniline Nanoparticles for Intracellular Delivery of Cisplatin. Chemistry 2017; 23:5352-5360. [DOI: 10.1002/chem.201700059] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2017] [Indexed: 01/01/2023]
Affiliation(s)
- Chaoqun You
- School of Chemistry and Chemical Engineering; Southeast University; Nanjing 210089 P.R. China
| | - Hongshuai Wu
- School of Chemistry and Chemical Engineering; Southeast University; Nanjing 210089 P.R. China
| | - Minxing Wang
- School of Chemistry and Chemical Engineering; Southeast University; Nanjing 210089 P.R. China
| | - Yawen Zhang
- School of Chemistry and Chemical Engineering; Southeast University; Nanjing 210089 P.R. China
| | - Jingwen Wang
- School of Chemistry and Chemical Engineering; Southeast University; Nanjing 210089 P.R. China
| | - Yanghui Luo
- School of Chemistry and Chemical Engineering; Southeast University; Nanjing 210089 P.R. China
| | - Lihai Zhai
- School of Chemistry and Chemical Engineering; Southeast University; Nanjing 210089 P.R. China
| | - Baiwang Sun
- School of Chemistry and Chemical Engineering; Southeast University; Nanjing 210089 P.R. China
| | - Xiangyang Zhang
- Laboratory of Organic Chemistry; ETH Zürich; 8093 Zürich Switzerland
| | - Jin Zhu
- Key Laboratory of Antibody Technique of Ministry of Health; School of Pathology; Nanjing Medical University; Nanjing 210093 P.R. China
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16
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17
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Human placental cell and tissue uptake of doxorubicin and its liposomal formulations. Toxicol Lett 2015; 239:108-14. [DOI: 10.1016/j.toxlet.2015.09.011] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2015] [Revised: 09/08/2015] [Accepted: 09/11/2015] [Indexed: 11/24/2022]
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18
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Pierrat P, Lebeau L. Characterization of Titratable Amphiphiles in Lipid Membranes by Fluorescence Spectroscopy. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2015; 31:12362-12371. [PMID: 26507074 DOI: 10.1021/acs.langmuir.5b03258] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Understanding the ionization behavior of lipid membranes is a key parameter for successful development of lipid-based drug delivery systems. Accurate determination of the ionization state of a titratable species incorporated in a lipid bilayer however requires special care. Herein we investigated the behavior of titratable lipids in liposomes by fluorescence spectroscopy and determined which extrinsic parameters-i.e., besides those directly related to their molecular structure-determine their ionization state. Two fluorescent dyes, TNS and R18, have been used to investigate basic and acidic titratable lipids, respectively. Our results suggest that the titration behavior of the ionizable lipid in the membrane is more sensitive to the composition of the membrane and to its physical state than to the presence of solutes in the aqueous phase. Essentially overlooked in earlier studies on ionizable lipid assemblies, the concentration of the titratable lipid in the membrane was found to have a major effect on the ionization state of the lipid polar head. This may result in a shift in the apparent pKa value which may be as large as two pKa units and cannot be satisfactorily predicted.
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Affiliation(s)
- Philippe Pierrat
- Laboratoire de Conception et Application de Molécules Bioactives, Faculté de Pharmacie, UMR7199 CNRS - Université de Strasbourg , 74 route du Rhin - BP 60024, 67401 Illkirch, France
| | - Luc Lebeau
- Laboratoire de Conception et Application de Molécules Bioactives, Faculté de Pharmacie, UMR7199 CNRS - Université de Strasbourg , 74 route du Rhin - BP 60024, 67401 Illkirch, France
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19
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Barbosa MV, Monteiro LOF, Carneiro G, Malagutti AR, Vilela JMC, Andrade MS, Oliveira MC, Carvalho-Junior AD, Leite EA. Experimental design of a liposomal lipid system: A potential strategy for paclitaxel-based breast cancer treatment. Colloids Surf B Biointerfaces 2015; 136:553-61. [PMID: 26454545 DOI: 10.1016/j.colsurfb.2015.09.055] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2015] [Revised: 09/10/2015] [Accepted: 09/27/2015] [Indexed: 10/23/2022]
Abstract
Paclitaxel (PTX) is widely used as a first-line treatment for patients with metastatic breast cancer; however, its poor water solubility represents a major challenge for parenteral administration. The encapsulation of the PTX in drug-delivery systems with high affinity for tumor sites could improve the uptake and increase its therapeutic efficacy. In this work, long-circulating and pH-sensitive PEG-coated (SpHL-PTX) and PEG-folate-coated liposomes containing PTX (SpHL-FT-PTX) were prepared, and the physicochemical properties and in vitro cytotoxic activity were evaluated. Both formulations presented adequate physicochemical properties, including a mean diameter smaller than 200 nm, zeta potential values near the neutral range, and an encapsulation percentage higher than 93%. Moreover, SpHL-FT-PTX showed a good stability after storage for 100 days at 4 °C. The viability studies on breast cancer cell lines (MDA-MB-231 and MCF-7) demonstrated cytotoxic activity more pronounced for SpHL-FT-PTX than for SpHL-PTX or free drug for both tumor cell lines. This activity was reduced to a rate comparable to SpHL-PTX when the cells were previously treated with folic acid in order to saturate the receptors. In contrast, in the normal cell line (L929), cell viability was decreased only by free or liposomal PTX in the highest concentrations. A significantly higher selectivity index was obtained after SpHL-FT-PTX treatment compared to SpHL-PTX and free PTX. Therefore, the results of the present work suggest that SpHL-FT-PTX can be a promising formulation for the treatment of metastatic breast cancer.
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Affiliation(s)
- Marcos V Barbosa
- Programa de Pós-Graduação em Ciências Farmacêuticas, Departamento de Farmácia, Faculdade de Ciências Biológicas e da Saúde, Universidade Federal dos Vales do Jequitinhonha e Mucuri, Rodovia MGT 367-Km 583, 5000, 39100-000, Diamantina, Minas Gerais, Brazil
| | - Liziane O F Monteiro
- Programa de Pós-Graduação em Ciências Farmacêuticas, Departamento de Produtos Farmacêuticos, Faculdade de Farmácia, Universidade Federal de Minas Gerais, Av. Antônio Carlos, 6627, 31270-901 Belo Horizonte, Minas Gerais, Brazil
| | - Guilherme Carneiro
- Programa de Pós-Graduação em Ciências Farmacêuticas, Departamento de Farmácia, Faculdade de Ciências Biológicas e da Saúde, Universidade Federal dos Vales do Jequitinhonha e Mucuri, Rodovia MGT 367-Km 583, 5000, 39100-000, Diamantina, Minas Gerais, Brazil
| | - Andréa R Malagutti
- Programa de Pós-Graduação em Ciências Farmacêuticas, Departamento de Farmácia, Faculdade de Ciências Biológicas e da Saúde, Universidade Federal dos Vales do Jequitinhonha e Mucuri, Rodovia MGT 367-Km 583, 5000, 39100-000, Diamantina, Minas Gerais, Brazil
| | - José M C Vilela
- Centro de Tecnologia SENAI-CETEC, Avenida José Cândido da Silveira, 2000, Belo Horizonte, MG 31170-000, Brazil
| | - Margareth S Andrade
- Centro de Tecnologia SENAI-CETEC, Avenida José Cândido da Silveira, 2000, Belo Horizonte, MG 31170-000, Brazil
| | - Mônica C Oliveira
- Programa de Pós-Graduação em Ciências Farmacêuticas, Departamento de Produtos Farmacêuticos, Faculdade de Farmácia, Universidade Federal de Minas Gerais, Av. Antônio Carlos, 6627, 31270-901 Belo Horizonte, Minas Gerais, Brazil
| | - Alvaro D Carvalho-Junior
- Programa de Pós-Graduação em Ciências Farmacêuticas, Departamento de Farmácia, Faculdade de Ciências Biológicas e da Saúde, Universidade Federal dos Vales do Jequitinhonha e Mucuri, Rodovia MGT 367-Km 583, 5000, 39100-000, Diamantina, Minas Gerais, Brazil
| | - Elaine A Leite
- Programa de Pós-Graduação em Ciências Farmacêuticas, Departamento de Farmácia, Faculdade de Ciências Biológicas e da Saúde, Universidade Federal dos Vales do Jequitinhonha e Mucuri, Rodovia MGT 367-Km 583, 5000, 39100-000, Diamantina, Minas Gerais, Brazil; Programa de Pós-Graduação em Ciências Farmacêuticas, Departamento de Produtos Farmacêuticos, Faculdade de Farmácia, Universidade Federal de Minas Gerais, Av. Antônio Carlos, 6627, 31270-901 Belo Horizonte, Minas Gerais, Brazil.
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20
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Tila D, Ghasemi S, Yazdani-Arazi SN, Ghanbarzadeh S. Functional liposomes in the cancer-targeted drug delivery. J Biomater Appl 2015; 30:3-16. [PMID: 25823898 DOI: 10.1177/0885328215578111] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Cancer is considered as one of the most severe health problems and is currently the third most common cause of death in the world after heart and infectious diseases. Novel therapies are constantly being discovered, developed and trialed. Many of the current anticancer agents exhibit non-ideal pharmaceutical and pharmacological properties and are distributed non-specifically throughout the body. This results in death of the both normal healthy and malignant cells and substantially leads to accruing a variety of serious toxic side effects. Therefore, the efficient systemic therapy of cancer is almost impossible due to harmful side effects of anticancer agents to the healthy organs and tissues. Furthermore, several problems such as low bioavailability of the drugs, low drug concentrations at the site of action, lack of drug specificity and drug-resistance also cause many restrictions on clinical applications of these drugs in the tumor therapy. Different types of the liposomal formulations have been used in medicine due to their distinctive advantages associated with their structural flexibility in the encapsulation of various agents with different physicochemical properties. They can also mediate delivery of the cargo to the appropriate cell type and subcellular compartment, reducing the effective dosage and possible side effects which are related to high systemic concentrations. Therefore, these novel systems were found very promising and encouraging dosage forms for the treatment of different types of cancer by increasing efficiency and reducing the systemic toxicity due to the specific drug delivery and targeting.
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Affiliation(s)
- Dena Tila
- Biotechnology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Saeed Ghasemi
- Department of Medicinal Chemistry, School of Pharmacy, Guilan University of Medical Sciences, Rasht, Iran
| | | | - Saeed Ghanbarzadeh
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran Research Center for Pharmaceutical Nanotechnology, Tabriz University of Medical Sciences, Tabriz, Iran
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21
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Tila D, Yazdani-Arazi SN, Ghanbarzadeh S, Arami S, Pourmoazzen Z. pH-sensitive, polymer modified, plasma stable niosomes: promising carriers for anti-cancer drugs. EXCLI JOURNAL 2015; 14:21-32. [PMID: 26417350 PMCID: PMC4553888 DOI: 10.17179/excli2013-609] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/26/2013] [Accepted: 01/07/2014] [Indexed: 12/14/2022]
Abstract
The aim of this study was the design and evaluation of a novel plasma stable, pH-sensitive niosomal formulation of Mitoxantrone by a modified ethanol injection method. Cholesterol hemisuccinate was added instead of cholesterol in order to produce pH-sensitivity property and using PEG-Poly (monomethyl itaconate)-CholC6 (PEG-PMMI-CholC6) copolymer introduced simultaneously pH-sensitivity and plasma stability properties in prepared niosomes. The pH-sensitivity and cytotoxicity of Mitoxantrone niosomes were evaluated in vitro in phosphate buffer with different pHs as well as using human ovarian cancer cell line (OVCAR-3), human breast cancer cell line (MCF-7) and human umbilical vein endothelial cells (HUVEC). Results showed that both cholesterol derivatives bearing formulations had pH-sensitive property and were found to release their contents under mild acidic conditions rapidly. In addition, the PEG-PMMI-CholC6-based niosomes could reserve the pH-sensitivity after incubation in plasma. Both Mitoxantrone-loaded pH-sensitive niosomes showed higher cytotoxicity than the conventional niosomes on OVCAR-3 and MCF-7 cell lines. However, both pH-sensitive niosomes exhibited lower cytotoxic effect on HUVEC cell line. Plasma stable, pH-sensitive niosomes could improve the cytotoxic effect and reduce the side effects of anti-tumor drugs.
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Affiliation(s)
- Dena Tila
- Tabriz University of Medical Sciences, Tabriz, Iran, Research Center for Pharmaceutical Nanotechnology
| | | | - Saeed Ghanbarzadeh
- Tabriz University of Medical Sciences, Tabriz, Iran, Research Center for Pharmaceutical Nanotechnology ; Tabriz University of Medical Sciences, Tabriz, Iran, Department of Pharmaceutics, Faculty of Pharmacy ; Tabriz University of Medical Sciences, Tabriz, Iran, Student Research Committee, Faculty of Pharmacy
| | - Sanam Arami
- Tabriz University of Medical Sciences, Tabriz, Iran, Research Center for Pharmaceutical Nanotechnology ; Tabriz University of Medical Sciences, Tabriz, Iran, Student Research Committee, Faculty of Pharmacy
| | - Zhaleh Pourmoazzen
- Chemistry Department, Science Faculty, Azarbaijan Shahid Madani University,Tabriz, Iran
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22
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Simultaneous active intracellular delivery of doxorubicin and C6-ceramide shifts the additive/antagonistic drug interaction of non-encapsulated combination. J Control Release 2014; 196:122-31. [DOI: 10.1016/j.jconrel.2014.09.024] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2014] [Revised: 08/08/2014] [Accepted: 09/25/2014] [Indexed: 11/21/2022]
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23
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Endogenous lung surfactant inspired pH responsive nanovesicle aerosols: pulmonary compatible and site-specific drug delivery in lung metastases. Sci Rep 2014; 4:7085. [PMID: 25403950 PMCID: PMC4235800 DOI: 10.1038/srep07085] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2014] [Accepted: 10/24/2014] [Indexed: 01/13/2023] Open
Abstract
Concerns related to pulmonary toxicity and non-specificity of nanoparticles have limited their clinical applications for aerosol delivery of chemotherapeutics in lung cancer. We hypothesized that pulmonary surfactant mimetic nanoparticles that offer pH responsive release specifically in tumor may be a possible solution to overcome these issues. We therefore developed lung surfactant mimetic and pH responsive lipid nanovesicles for aerosol delivery of paclitaxel in metastatic lung cancer. 100-200 nm sized nanovesicles showed improved fusogenicity and cytosolic drug release, specifically with cancer cells, thereby resulting in improved cytotoxicity of paclitaxel in B16F10 murine melanoma cells and cytocompatibility with normal lung fibroblasts (MRC 5). The nanovesicles showed airway patency similar to that of endogenous pulmonary surfactant and did not elicit inflammatory response in alveolar macrophages. Their aerosol administration while significantly improving the biodistribution of paclitaxel in comparison to Taxol (i.v.), also showed significantly higher metastastes inhibition (~75%) in comparison to that of i.v. Taxol and i.v. Abraxane. No signs of interstitial pulmonary fiborisis, chronic inflammation and any other pulmonary toxicity were observed with nanovesicle formulation. Overall, these nanovesicles may be a potential platform to efficiently deliver hydrophobic drugs as aerosol in metastatic lung cancer and other lung diseases, without causing pulmonary toxicity.
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24
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Characterization of lysosome-destabilizing DOPE/PLGA nanoparticles designed for cytoplasmic drug release. Int J Pharm 2014; 471:349-57. [PMID: 24882034 DOI: 10.1016/j.ijpharm.2014.05.054] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2014] [Accepted: 05/28/2014] [Indexed: 01/16/2023]
Abstract
Polymeric nanoparticles (NPs) offer a promising approach for therapeutic intracellular delivery of proteins, conventionally hampered by short half-lives, instability and immunogenicity. Remarkably, NPs uptake occurs via endocytic internalization leading to NPs content's release within lysosomes. To overcome lysosomal degradation and achieve NPs and/or loaded proteins release into cytosol, we propose the formulation of hybrid NPs by adding 1,2-dioleoyl-sn-glycero-3-phosphoethanolamine (DOPE) as pH sensitive component in the formulation of poly-lactide-co-glycolide (PLGA) NPs. Hybrid NPs, featured by different DOPE/PLGA ratios, were characterized in terms of structure, stability and lipid organization within the polymeric matrix. Experiments on NIH cells and rat primary neuronal cultures highlighted the safety profile of hybrid NPs. Moreover, after internalization, NPs are able to transiently destabilize the integrity of lysosomes in which they are taken up, speeding their escape and favoring cytoplasmatic localization. Thus, these DOPE/PLGA-NPs configure themselves as promising carriers for intracellular protein delivery.
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25
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Fonseca NA, Gregório AC, Valério-Fernandes A, Simões S, Moreira JN. Bridging cancer biology and the patients' needs with nanotechnology-based approaches. Cancer Treat Rev 2014; 40:626-35. [PMID: 24613464 DOI: 10.1016/j.ctrv.2014.02.002] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2013] [Revised: 02/06/2014] [Accepted: 02/12/2014] [Indexed: 01/27/2023]
Abstract
Cancer remains as stressful condition and a leading cause of death in the western world. Actual cornerstone treatments of cancer disease rest as an elusive alternative, offering limited efficacy with extensive secondary effects as a result of severe cytotoxic effects in healthy tissues. The advent of nanotechnology brought the promise to revolutionize many fields including oncology, proposing advanced systems for cancer treatment. Drug delivery systems rest among the most successful examples of nanotechnology. Throughout time they have been able to evolve as a function of an increased understanding from cancer biology and the tumor microenvironment. Marketing of Doxil® unleashed a remarkable impulse in the development of drug delivery systems. Since then, several nanocarriers have been introduced, with aspirations to overrule previous technologies, demonstrating increased therapeutic efficacy besides decreased toxicity. Spatial and temporal targeting to cancer cells has been explored, as well as the use of drug combinations co-encapsulated in the same particle as a mean to take advantage of synergistic interactions in vivo. Importantly, targeted delivery of siRNA for gene silencing therapy has made its way to the clinic for a "first in man" trial using lipid-polymeric-based particles. Focusing in state-of-the-art technology, this review will provide an insightful vision on nanotechnology-based strategies for cancer treatment, approaching them from a tumor biology-driven perspective, since their early EPR-based dawn to the ones that have truly the potential to address unmet medical needs in the field of oncology, upon targeting key cell subpopulations from the tumor microenvironment.
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Affiliation(s)
- Nuno A Fonseca
- CNC - Center for Neuroscience and Cell Biology, University of Coimbra, Largo Marquês de Pombal, 3004-517 Coimbra, Portugal; FFUC - Faculty of Pharmacy, University of Coimbra, Pólo das Ciências da Saúde, Azinhaga de Santa Comba, 3000-548 Coimbra, Portugal
| | - Ana C Gregório
- CNC - Center for Neuroscience and Cell Biology, University of Coimbra, Largo Marquês de Pombal, 3004-517 Coimbra, Portugal; IIIUC - Institute for Interdisciplinary Research, University of Coimbra, Casa Costa Alemão - Pólo II, Rua Dom Francisco de Lemos, 3030-789 Coimbra, Portugal
| | - Angela Valério-Fernandes
- CNC - Center for Neuroscience and Cell Biology, University of Coimbra, Largo Marquês de Pombal, 3004-517 Coimbra, Portugal; IIIUC - Institute for Interdisciplinary Research, University of Coimbra, Casa Costa Alemão - Pólo II, Rua Dom Francisco de Lemos, 3030-789 Coimbra, Portugal
| | - Sérgio Simões
- CNC - Center for Neuroscience and Cell Biology, University of Coimbra, Largo Marquês de Pombal, 3004-517 Coimbra, Portugal; FFUC - Faculty of Pharmacy, University of Coimbra, Pólo das Ciências da Saúde, Azinhaga de Santa Comba, 3000-548 Coimbra, Portugal
| | - João N Moreira
- CNC - Center for Neuroscience and Cell Biology, University of Coimbra, Largo Marquês de Pombal, 3004-517 Coimbra, Portugal; FFUC - Faculty of Pharmacy, University of Coimbra, Pólo das Ciências da Saúde, Azinhaga de Santa Comba, 3000-548 Coimbra, Portugal.
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26
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Krasnopol’skii YM, Balaban’yan VY, Shobolov DL, Shvets VI. Prospective clinical applications of nanosized drugs. RUSS J GEN CHEM+ 2014. [DOI: 10.1134/s1070363213120517] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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27
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Ghanbarzadeh S, Arami S, Pourmoazzen Z, Khorrami A. Improvement of the antiproliferative effect of rapamycin on tumor cell lines by poly (monomethylitaconate)-based pH-sensitive, plasma stable liposomes. Colloids Surf B Biointerfaces 2013; 115:323-30. [PMID: 24394948 DOI: 10.1016/j.colsurfb.2013.12.024] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2013] [Revised: 12/05/2013] [Accepted: 12/10/2013] [Indexed: 01/05/2023]
Abstract
pH-responsive polymers produce liposomes with pH-sensitive property which can release their encapsulated drug under mild acidic conditions found inside the cellular endosomes, inflammatory tissues and cancerous cells. The aim of this study was preparing pH-sensitive and plasma stable liposomes in order to enhance the selectivity and antiproliferative effect of Rapamycin. In the present study we used PEG-poly (monomethylitaconate)-CholC6 (PEG-PMMI-CholC6) copolymer and Oleic acid (OA) to induce pH-sensitive property in Rapamycin liposomes. pH-sensitive liposomal formulations bearing copolymer PEG-PMMI-CholC6 and OA were characterized in regard to physicochemical stability, pH-responsiveness and stability in human plasma. The ability of pH-sensitive liposomes in enhancing the cytotoxicity of Rapamycin was evaluated in vitro by using colon cancer cell line (HT-29) and compared with its cytotoxicity on human umbilical vein endothelial cell (HUVEC) line. Both formulations were found to release their contents under mild acidic conditions rapidly. However, unlike OA-based liposomes, the PEG-PMMI-CholC6 bearing liposomes preserved their pH-sensitivity in plasma. Both types of pH-sensitive Rapamycin-loaded liposomes exhibited high physicochemical stability and could deliver antiproliferative agent into HT-29 cells much more efficiently in comparison with conventional liposomes. Conversely, the antiproliferative effect of pH-sensitive liposomes on HUVEC cell line was less than conventional liposomes. This study showed that both OA and PEG-PMMI-CholC6-based vesicles could submit pH-sensitive property, however, only PEG-PMMI-CholC6-based liposomes could preserve pH-sensitive property after incubation in plasma. As a result pH-sensitive PEG-PMMI-CholC6-based liposomal formulation can improve the selectivity, stability and antiproliferative effect of Rapamycin.
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Affiliation(s)
- Saeed Ghanbarzadeh
- Research Center for Pharmaceutical Nanotechnology, Tabriz University of Medical Sciences, Tabriz, Iran; Department of Pharmaceutics, Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran; Student Research Committee, Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Sanam Arami
- Research Center for Pharmaceutical Nanotechnology, Tabriz University of Medical Sciences, Tabriz, Iran; Student Research Committee, Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran; Department of Pharmaceutical Biotechnology, Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Zhaleh Pourmoazzen
- Chemistry Department, Science Faculty, Azarbaijan Shahid Madani University, Iran
| | - Arash Khorrami
- Research Center for Pharmaceutical Nanotechnology, Tabriz University of Medical Sciences, Tabriz, Iran; Student Research Committee, Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran; Department of Pharmacology & Toxicology, Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran.
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28
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Liu X, Huang G. Formation strategies, mechanism of intracellular delivery and potential clinical applications of pH-sensitive liposomes. Asian J Pharm Sci 2013. [DOI: 10.1016/j.ajps.2013.11.002] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
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29
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Ghanbarzadeh S, Khorrami A, Pourmoazzen Z, Arami S. Plasma stable, pH-sensitive non-ionic surfactant vesicles simultaneously enhance antiproliferative effect and selectivity of Sirolimus. Pharm Dev Technol 2013; 20:279-87. [DOI: 10.3109/10837450.2013.860553] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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30
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Wu X, Wang Z, Zhu D, Zong S, Yang L, Zhong Y, Cui Y. pH and thermo dual-stimuli-responsive drug carrier based on mesoporous silica nanoparticles encapsulated in a copolymer-lipid bilayer. ACS APPLIED MATERIALS & INTERFACES 2013; 5:10895-903. [PMID: 24127854 DOI: 10.1021/am403092m] [Citation(s) in RCA: 102] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
A pH and thermo dual-controllable composite structure was developed as a triggerable drug delivery carrier. In such a drug carrier, a mesoporous silica nanoparticle (MSN) acts as the drug loading core, while a layer of copolymer-lipid serves as the dual-responsive gating shell. Specifically, the copolymer-lipid bilayer consists of natural phospholipids (soy phosphatidylcholine, SPC) and the poly(N-isopropylacrylamide-methacrylic acid-octadecyl acrylate) (p(NIPAM-MAA-ODA)) copolymer. With this structure, a high drug loading capacity and a sustained release effect could be provided by the MSN core, while a pH and thermo dual-responsive releasing ability could be offered by the copolymer-lipid bilayer. In addition, the introduction of SPC instead of the traditionally used phospholipids (such as dioleoyl phosphatidylethanolamine (DOPE) or dipalmitoyl phosphatidylcholine (DPPC)) results in a much lower cost and a better serum stability. Using doxorubicin (DOX) as the drug model, our results confirmed that either pH or temperature can trigger the drug release. However, much more drugs could be released by simultaneously controlling the pH and temperature. Furthermore, after being cocultured with cancer cells (MCF-7), the drug carriers transported DOX into the cells and exhibited a pH-sensitive release behavior. Since most tumor sites usually exhibit a more acidic environment or a higher temperature, the pH- and thermo-responsive releasing ability of this drug carrier is particularly useful and important for the targeted release at the tumor region. Thus, due to the powerful controlled releasing ability, the straightforward preparation method, and low cost, the demonstrated nanocarrier will have potential applications in controllable drug delivery and cancer therapy.
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Affiliation(s)
- Xin Wu
- Advanced Photonics Center, Southeast University , Nanjing 210096, China
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Zhang F, Lin G, Shao W, Yu Y, Zang L. Pharmacokinetics and Tissue Distribution of Vinorelbine Bitartrate after Intraveous Administration of Liposomal and Injectable Formulations. J DISPER SCI TECHNOL 2013. [DOI: 10.1080/01932691.2012.744691] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Abstract
In recent years, liposomes have been employed with growing success as pharmaceutical carriers for antineoplastic drugs. One specific strategy used to enhance in vivo liposome-mediated drug delivery is the improvement of intracytoplasmic delivery. In this context, pH-sensitive liposomes (pHSLip) have been designed to explore the endosomal acidification process, which may lead to a destabilization of the liposomes, followed by a release of their contents into the cell cytoplasm. This review considers the current status of pHSLip development and its applicability in cancer treatment, focusing on the mechanisms of pH sensitivity and liposomal composition of pHSLip. The final section will discuss the application of these formulations in both in vitro and in vivo studies of antitumor efficacy.
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Loew M, Forsythe JC, McCarley RL. Lipid nature and their influence on opening of redox-active liposomes. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2013; 29:6615-23. [PMID: 23698020 PMCID: PMC3778659 DOI: 10.1021/la304340e] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
The pathway for content release from reduction-sensitive liposomes based on a quinone-dioleoylphosphatidylethanolamine lipid conjugate (Q-DOPE) is outlined using results from fluorescent dye content release assays as well as single- and multiple-angle light scattering. Experimental observations are consistent with a shape/size change of the reduced liposomes prior to their aggregation, with subsequent near-quantitative content release achieved only when the lipid membrane experiences conditions favorable to a lamellar to an inverted hexagonal phase transition. Addition of poly(ethyleneglycol)-modified DOPE (PEG-DOPE) to the Q-DOPE liposomal formulation results in stabilization of the lipid bilayer, whereas incorporation of DOPE yields faster content release. At high DOPE concentrations, DOPE/PEG-DOPE/Q-DOPE liposomes exhibit larger content release, indicating a change in pathway for content release. The outcomes here provide a better understanding of the underlying principles of triggered liposomal content release and the potential utility of specific lipid properties for the rational design of drug delivery systems based on the novel Q-DOPE lipid.
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Affiliation(s)
| | | | - Robin L. McCarley
- CORRESPONDING AUTHOR: Telephone: (225) 578-3239. Facsimile: (225) 578-3458.
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Abstract
Anthracyclines have received significant attention due to their effectiveness and extensive use as anticancer agents. At present, the clinical use of these drugs is offset by drug resistance in tumours and cardiotoxicity. Therefore, a relentless search for the 'better anthracycline' has been ongoing since the inception of these drugs > 30 years ago. This review focuses on the most recent pharmacology and medicinal chemistry developments on the design and use of anthracyclines. Based on their crystal structures as well as molecular modelling, a more detailed mechanism of topoisomerase poisoning by these new anthracyclines has emerged. Chemical modifications of anthracyclines have been found to possibly change the target selectivity among various topoisomerases and, thus, vary their anticancer activity. Additionally, recent sugar modifications of anthracyclines have also been found to overcome P-glycoprotein-mediated drug resistance in cancer therapy. The continued improvement of anthracycline clinical applications so far and the clinical trials of the 'third generation' of anthracyclines (such as sabarubicin) are also discussed. To finally find the 'better' anthracycline, further areas of research still need to be explored such as: the elucidation of the topoisomerase and P-glycoprotein crystal structures, molecular modelling based on crystal structure in order to design the next generation of better anthracycline drugs, the continued modifications of the anthracycline sugar moieties, and the further improvement of anthracycline drug delivery methods.
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Affiliation(s)
- Janos Nadas
- Department of Chemistry, College of Pharmacy, The Ohio Sate University, Columbus, OH 43210, USA
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Targeted delivery via avidin fusion protein: Intracellular fate of biotinylated doxorubicin derivative and cellular uptake kinetics and biodistribution of biotinylated liposomes. Eur J Pharm Sci 2012; 47:848-56. [DOI: 10.1016/j.ejps.2012.09.001] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2012] [Revised: 08/20/2012] [Accepted: 09/03/2012] [Indexed: 11/24/2022]
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Joshi N, Kaviratna A, Banerjee R. Multi trigger responsive, surface active lipid nanovesicle aerosols for improved efficacy of paclitaxel in lung cancer. Integr Biol (Camb) 2012; 5:239-48. [DOI: 10.1039/c2ib20122d] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Nitin Joshi
- WRCBB, Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India. Fax: +91-22 2572 3480; Tel: +91-22 2576 7868
| | - Anubhav Kaviratna
- WRCBB, Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India. Fax: +91-22 2572 3480; Tel: +91-22 2576 7868
| | - Rinti Banerjee
- WRCBB, Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India. Fax: +91-22 2572 3480; Tel: +91-22 2576 7868
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Pre-targeting and direct immunotargeting of liposomal drug carriers to ovarian carcinoma. PLoS One 2012; 7:e41410. [PMID: 22844475 PMCID: PMC3406029 DOI: 10.1371/journal.pone.0041410] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2012] [Accepted: 06/25/2012] [Indexed: 11/19/2022] Open
Abstract
Background Epidermal growth factor receptor (EGFR) is overexpressed in many solid tumor types, such as ovarian carcinoma. Immunoliposome based drug targeting has shown promising results in drug delivery to the tumors. However, the ratio of tumor-to-normal tissue concentrations should be increased to minimize the adverse effects of cytostatic drugs. Methodology/Principal Findings We studied the EGFR-targeted doxorubicin immunoliposomes using pre-targeting and local intraperitoneal (i.p.) administration of the liposomes. This approach was used to increase drug delivery to tumors as compared to direct intravenous (i.v.) administration of liposomes. EGFR antibodies were attached on the surface of PEG coated liposomes using biotin-neutravidin binding. Receptor mediated cellular uptake and cytotoxic efficacy of EGFR-targeted liposomes were investigated in human ovarian adenocarcinoma (SKOV-3 and SKOV3.ip1) cells. In vivo distribution of the liposomes in mice was explored using direct and pre-targeting approaches and SPECT/CT imaging. Targeted liposomes showed efficient and specific receptor-mediated binding to ovarian carcinoma cells in vitro, but the difference in cytotoxicity between targeted and non-targeted liposomes remained small. The relatively low cytotoxic efficacy is probably due to insufficient doxorubicin release from the liposomes rather than lack of target binding. Tumor uptake of targeted liposomes in vivo was comparable to that of non-targeted liposomes after both direct and pre-targeting administration. For both EGFR-targeted and non-targeted liposomes, the i.p. administration increased liposome accumulation to the tumors compared to i.v. injections. Conclusions/Significance Intraperitoneal administration of liposomes may be a beneficial approach to treat the tumors in the abdominal cavity. The i.p. pre-targeting method warrants further studies as a potential approach in cancer therapy.
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Zhang F, Shao W, Lin G. Development of Phosphatidylethanolamine Liposomes That Efficiently Retain Encapsulated Vinorelbine Bitartrate. J DISPER SCI TECHNOL 2012. [DOI: 10.1080/01932691.2011.567939] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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39
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Moura V, Lacerda M, Figueiredo P, Corvo ML, Cruz MEM, Soares R, de Lima MCP, Simões S, Moreira JN. Targeted and intracellular triggered delivery of therapeutics to cancer cells and the tumor microenvironment: impact on the treatment of breast cancer. Breast Cancer Res Treat 2012; 133:61-73. [PMID: 21805188 DOI: 10.1007/s10549-011-1688-7] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2011] [Accepted: 07/15/2011] [Indexed: 01/30/2023]
Abstract
Limiting tumor invasion to the surrounding healthy tissues has proven to be clinically relevant for anticancer treatment options. We have demonstrated that, within a solid tumor, it is possible to achieve such a goal with the same nanoparticle by intracellular and triggered targeted drug delivery to more than one cell population. We have identified the nucleolin receptor in endothelial and cancer cells in tissue samples from breast cancer patients, which enabled the design of a F3-peptide-targeted sterically stabilized pH-sensitive liposome. The clinical potential of such strategy was demonstrated by the successful specific cellular association by breast cancer cells harvested from tumors of patients submitted to mastectomy. In vitro, the nanoparticle targeted the nucleolin receptor on a cell and ligand-specific manner and improved cytotoxicity of doxorubicin (used as a model drug) towards breast cancer and endothelial cells by 177- and 162-fold, respectively, relative to the commercially available non-targeted non-pH-sensitive liposomes. Moreover, active accumulation of F3-targeted pH-sensitive liposomes into human orthotopic tumors, implanted in the mammary fat pad of nude mice, was registered for a time point as short as 4 h, reaching 48% of the injected dose/g of tissue. Twenty-four hours post-injection the accumulation of the dual-targeted pH-sensitive nanoparticle in the tumor tissue was 33-fold higher than the non-targeted non-pH-sensitive counterpart. In mice treated with the developed targeted nanoparticle significant decrease of the tumor viable rim area and microvascular density, as well as limited invasion to surrounding healthy tissues were observed (as opposed to other tested controls), which may increase the probability of tumors falling in the category of "negative margins" with reduced risk of relapse.
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Affiliation(s)
- Vera Moura
- Center for Neuroscience and Cell Biology, University of Coimbra, Largo Marquês de Pombal, 3004-517 Coimbra, Portugal
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Heider EC, Myers GA, Harris JM. Spectroscopic microscopy analysis of the interior pH of individual phospholipid vesicles. Anal Chem 2011; 83:8230-8. [PMID: 21962221 DOI: 10.1021/ac2019987] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The use of phospholipid vesicles as reaction containers, as vehicles for pharmaceutical drug delivery, and as model systems for cells has prompted the development of new methods for analyzing the structure of vesicles and their contents. The pH of the interior of vesicles is of particular interest when analytes are encapsulated and concentrated with the use of a pH gradient. While the interior pH is generally measured for large populations of vesicles, we report the measurement of the interior pH of individual vesicles as their buffer contents are titrated by transfer of N-methylbutylamine (NMBA) into the vesicle by a pH gradient. The initially acidic buffer within the vesicles is titrated along with a small concentration of an encapsulated pH sensitive dye, 5,6-carboxy SNARF-1-dextran. Images of the indicator fluorescence from each vesicle and its dispersed fluorescence spectrum are recorded using epi-illumination spectral fluorescence microscopy. From a fit of the spectra to the respective acid and base forms of the fluorescent indicator, the interior pH of individual vesicles as a function of the concentration of the NMBA titrant in the external solution could be determined.
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Affiliation(s)
- Emily C Heider
- Department of Chemistry, University of Utah, Salt Lake City, Utah 84112-0850, United States
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Evjen TJ, Hagtvet E, Nilssen EA, Brandl M, Fossheim SL. Sonosensitive dioleoylphosphatidylethanolamine-containing liposomes with prolonged blood circulation time of doxorubicin. Eur J Pharm Sci 2011; 43:318-24. [PMID: 21620968 DOI: 10.1016/j.ejps.2011.05.007] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2011] [Revised: 04/28/2011] [Accepted: 05/12/2011] [Indexed: 11/29/2022]
Abstract
Ultrasound sensitive (sonosensitive) liposomes represent a drug delivery system designed for releasing a drug load upon exposure to ultrasound (US). Inclusion of dioleoylphosphatidylethanolamine (DOPE) in liposome membranes was previously shown to induce sonosensitivity. Long blood circulation time of the liposomal drug is required for high tumour uptake and efficient US-mediated drug delivery. In this study, blood pharmacokinetics of DOPE-based liposomal doxorubicin (DXR) were evaluated in non-tumoured mice. A markedly faster blood clearance of DXR was observed for DOPE-rich liposomes compared to Caelyx® (standard liposomal DXR). Subsequently, liposome membrane composition was altered to improve drug retention in the bloodstream, whilst maintaining sonosensitivity. Formulations with reduced blood clearance of DXR were obtained by reducing the content of DOPE from 62 to 32 or 25 mol%. These formulations showed long blood circulation time, as approximately 20% of the administered DXR dose was present in the bloodstream 24 h after intravenous injection. The reduction in liposomal DOPE content did not significantly reduce US-mediated DXR release in vitro, indicating that DOPE is a potent modulator of sonosensitivity. The novel liposome formulations, containing moderate amounts of DOPE, displayed similar blood pharmacokinetic profiles as standard liposomal DXR, but a markedly improved sonosensitivity.
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42
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Murakami T, Wijagkanalan W, Hashida M, Tsuchida K. Intracellular drug delivery by genetically engineered high-density lipoprotein nanoparticles. Nanomedicine (Lond) 2010; 5:867-79. [DOI: 10.2217/nnm.10.66] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Aim: Nascent high-density lipoprotein (HDL) capable of intracellularly delivering anticancer drugs was developed to potentiate antitumor activities. Materials & methods: Apolipoprotein A-I, a major component protein of HDL, was genetically fused to TAT peptide, a protein transduction domain. Nascent HDL was prepared with this mutant and phospholipids. Results & discussion: Intracellular delivery of doxorubicin (DXR) by TAT-fused HDL was confirmed by confocal microscopy. Treatment of cancer cells with TAT-fused HDL–DXR complex resulted in enhanced growth inhibition. Furthermore, TAT-fused HDL–DXR complex suppressed tumor growth in mice more efficiently than HDL–DXR complex. No bodyweight loss was observed for the TAT complex. These results clearly demonstrate the usefulness of TAT fusion to nascent HDL to potentiate the antitumor activity of DXR. Conclusion: The genetic fusion of apoA-I with biologically active peptides potentially enables a simple assembly of biocompatible and versatile drug carriers.
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Affiliation(s)
- Tatsuya Murakami
- Institute for Comprehensive Medical Science, Fujita Health University, Toyoake, Aichi 470–1192, Japan
- PRESTO, JST, 4–1-8 Honcho Kawaguchi, Saitama 332–0012, Japan
- Institute for Integrated Cell-Material Sciences, Kyoto University, Sakyo-ku, Kyoto 606–8304, Japan
| | - Wassana Wijagkanalan
- Department of Drug Delivery Research, Graduate School of Pharmaceutical Sciences, Kyoto University, Sakyo-ku, Kyoto 606–8501, Japan
| | - Mitsuru Hashida
- Institute for Integrated Cell-Material Sciences, Kyoto University, Sakyo-ku, Kyoto 606–8304, Japan
- Department of Drug Delivery Research, Graduate School of Pharmaceutical Sciences, Kyoto University, Sakyo-ku, Kyoto 606–8501, Japan
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Schroeder A, Kost J, Barenholz Y. Ultrasound, liposomes, and drug delivery: principles for using ultrasound to control the release of drugs from liposomes. Chem Phys Lipids 2009; 162:1-16. [DOI: 10.1016/j.chemphyslip.2009.08.003] [Citation(s) in RCA: 332] [Impact Index Per Article: 22.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2009] [Revised: 08/17/2009] [Accepted: 08/18/2009] [Indexed: 02/07/2023]
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Franzen S, Lommel SA. Targeting cancer with 'smart bombs': equipping plant virus nanoparticles for a 'seek and destroy' mission. Nanomedicine (Lond) 2009; 4:575-88. [PMID: 19572822 DOI: 10.2217/nnm.09.23] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
This article discusses plant virus nanoparticles as a weapon in the war on cancer. The successes and failures of numerous nanoparticle strategies are discussed as a background to consideration of the plant virus nanoparticle approach. To have therapeutic benefit, the advantages of the targeted nanoparticle must outweigh the problems of colloidal stability, uptake by the reticuloendothelial system as well as the requirement for clearance from the body. Biodegradable nanoparticles are considered to have the most promise to address these complex phenomena. After justifying the choice of biodegradable particles, the article focuses on comparison of micelles, liposomes, polymers and modified plant viruses. The structural uniformity, cargo capacity, responsive behavior and ease of manufacturing of plant virus nanoparticles are unique properties that suggest they have a wider role to play in targeted therapy. The loading of chemotherapeutic cargo is discussed, with specific reference to the advantage of reversible transitions of the capsid of Red clover necrotic mosaic virus. These features will be contrasted and compared with other biodegradable 'smart bombs' that target cancer cells.
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Affiliation(s)
- Stefan Franzen
- Department of Chemistry, North Carolina State University, Raleigh, NC 27695, USA.
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45
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A Mathematical Model of Drug Release from Liposomes by Low Frequency Ultrasound. Ann Biomed Eng 2009; 37:2640-5. [DOI: 10.1007/s10439-009-9785-z] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2009] [Accepted: 08/19/2009] [Indexed: 11/26/2022]
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Beuttler J, Rothdiener M, Müller D, Frejd FY, Kontermann RE. Targeting of Epidermal Growth Factor Receptor (EGFR)-Expressing Tumor Cells with Sterically Stabilized Affibody Liposomes (SAL). Bioconjug Chem 2009; 20:1201-8. [DOI: 10.1021/bc900061v] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Julia Beuttler
- Institut für Zellbiologie und Immunologie, Universität Stuttgart, Allmandring 31, 70569 Stuttgart, Germany, Affibody AB, P.O. Box 20137, SE-161 02 Bromma, Sweden, and Unit of Biomedical Radiations Sciences, Rudbeck Laboratory, Uppsala University, SE-751 85 Uppsala, Sweden
| | - Miriam Rothdiener
- Institut für Zellbiologie und Immunologie, Universität Stuttgart, Allmandring 31, 70569 Stuttgart, Germany, Affibody AB, P.O. Box 20137, SE-161 02 Bromma, Sweden, and Unit of Biomedical Radiations Sciences, Rudbeck Laboratory, Uppsala University, SE-751 85 Uppsala, Sweden
| | - Dafne Müller
- Institut für Zellbiologie und Immunologie, Universität Stuttgart, Allmandring 31, 70569 Stuttgart, Germany, Affibody AB, P.O. Box 20137, SE-161 02 Bromma, Sweden, and Unit of Biomedical Radiations Sciences, Rudbeck Laboratory, Uppsala University, SE-751 85 Uppsala, Sweden
| | - Fredrik Y. Frejd
- Institut für Zellbiologie und Immunologie, Universität Stuttgart, Allmandring 31, 70569 Stuttgart, Germany, Affibody AB, P.O. Box 20137, SE-161 02 Bromma, Sweden, and Unit of Biomedical Radiations Sciences, Rudbeck Laboratory, Uppsala University, SE-751 85 Uppsala, Sweden
| | - Roland E. Kontermann
- Institut für Zellbiologie und Immunologie, Universität Stuttgart, Allmandring 31, 70569 Stuttgart, Germany, Affibody AB, P.O. Box 20137, SE-161 02 Bromma, Sweden, and Unit of Biomedical Radiations Sciences, Rudbeck Laboratory, Uppsala University, SE-751 85 Uppsala, Sweden
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Glucose-sensitive liposomes incorporating hydrophobically modified glucose oxidase. Lipids 2008; 43:937-43. [PMID: 18751750 DOI: 10.1007/s11745-008-3223-0] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2008] [Accepted: 08/04/2008] [Indexed: 11/27/2022]
Abstract
Glucose-sensitive liposomes were prepared by incorporating hydrophobically modified glucose oxidase (EC 1.1.3.4.) into the liposomal bilayer of dioleoylphosphatidylethanolamine and cholesteryl hemisuccinate. For the release test, calcein, a fluorescence marker, was entrapped in the liposomes. The liposomes were stable under neutral conditions in terms of calcein release but an extensive release was observed under acidic conditions. In the experiment of glucose concentration-dependent calcein release, no release was observed for 180 min when the suspension of liposome was free of glucose. With a glucose concentration of 50 mg/dL, no appreciable amount of calcein was released for the first 20 min, and then the release rate was accelerated. At 200 mg/dL glucose concentration which is diagnostic and indicative for insulin-dependent diabetes, the lag time of calcein release became shorter and a faster response was obtained. When glucose concentration further increased to 400 mg/dL, the calcein release rate and the degree of release in 180 min were almost the same as the values when the glucose concentration was 200 mg/dL. The glucose concentration-dependent release is due to pH change, since the suspension of liposomes became acidic during the release experiments.
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48
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Poortinga AT. Microcapsules from self-assembled colloidal particles using aqueous phase-separated polymer solutions. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2008; 24:1644-7. [PMID: 18220438 DOI: 10.1021/la703441e] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
We report a new way of producing microcapsules consisting of a shell of aggregated colloids (also referred to as colloidosomes) using aqueous phase-separated polymer solutions (water-in-water emulsions) as a template. The extremely low interfacial tension of the template allows the production of reversible colloidosomes that spontaneously disintegrate depending on environmental conditions, making them ideal for controlled release purposes. Also, colloidosomes can have an elongated shape such that they may be used as microfluidic membranes or artificial arteries. Because the method described here does not use any organic solvents, it enables the use of sensitive materials such as cells and proteins.
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Affiliation(s)
- Albert T Poortinga
- Friesland Foods Kievit, Oliemolenweg 4a, 7944 HX Meppel, The Netherlands.
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Abstract
Evaluation of: Lamprecht A, Benoit JP: Etoposide nanocarriers suppress glioma cell growth by intracellular drug delivery and simultaneous P-glycoprotein inhibition. J. Control. Release 112, 208–213 (2006) [1] . Here, a recent paper on overcoming multidrug resistance in cancers by specially designed nanocapsules is evaluated. Multidrug resistance at a cellular level is due to active drug efflux from resistant cells and is linked to the presence of transmembrane P-glycoprotein in the resistant cells. In the paper by Lamprecht and Benoit, lipid nanocapsules of 25–100 nm diameter were developed using polyethylene glycol hydroxystearate as the surfactant. Polyethylene glycol hydroxystearate inhibited the action of P-glycoprotein, and the carriers ensured endocytosis, increasing the cytotoxicity of etoposide-loaded lipid nanocapsules in glioma cell lines. This paper is discussed and compared with other strategies for overcoming multidrug resistance in tumors. The implications of this technology in overcoming the blood–brain barrier are also discussed.
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Affiliation(s)
- R Banerjee
- School of Biosciences & Bioengineering, Indian Institute of Technology, Bombay, Mumbai, India.
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Karanth H, Murthy RSR. pH-sensitive liposomes--principle and application in cancer therapy. J Pharm Pharmacol 2007; 59:469-83. [PMID: 17430630 DOI: 10.1211/jpp.59.4.0001] [Citation(s) in RCA: 191] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
Abstract
The purpose of this review is to provide an insight into the different aspects of pH-sensitive liposomes. The review consists of 6 parts: the first introduces different types of medications made in liposomal drug delivery to overcome several drawbacks; the second elaborates the development of pH-sensitive liposomes; the third explains diverse mechanisms associated with the endocytosis and the cytosolic delivery of the drugs through pH-sensitive liposomes; the fourth describes the role and importance of pH-sensitive lipid dioleoylphosphatidylethanolamine (DOPE) and research carried on it; the fifth explains successful strategies used so far using the mechanism of pH sensitivity for fusogenic activity; the final part is a compilation of research that has played a significant role in emphasizing the success of pH-sensitive liposomes as an efficient drug delivery system in the treatment of malignant tumours. pH-Sensitive liposomes have been extensively studied in recent years as an amicable alternative to conventional liposomes in effectively targeting and accumulating anti-cancer drugs in tumours. This research suggests that pH-sensitive liposomes are more efficient in delivering anti-cancer drugs than conventional and long-circulating liposomes due to their fusogenic property. Research focused on the clinical and therapeutic side of pH-sensitive liposomes would enable their commercial utility in cancer treatment.
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Affiliation(s)
- H Karanth
- New Drug Delivery Systems Laboratory, Pharmacy Department, Donors' Plaza, Opp. University Main Office, M S University of Baroda, Vadodara-390 002, India
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