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Nijhawan HP, Shyamsundar P, Prabhakar B, Yadav KS. PEGylated pH-Responsive Liposomes for Enhancing the Intracellular Uptake and Cytotoxicity of Paclitaxel in MCF-7 Breast Cancer Cells. AAPS PharmSciTech 2024; 25:216. [PMID: 39289249 DOI: 10.1208/s12249-024-02930-7] [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: 03/30/2024] [Accepted: 09/03/2024] [Indexed: 09/19/2024] Open
Abstract
This study aimed to develop paclitaxel (PTX)-loaded PEGylated (PEG)-pH-sensitive (SpH) liposomes to enhance drug delivery efficiency and cytotoxicity against MCF-7 breast cancer cells. PTX-loaded PEG-SpH liposomes were prepared using the thin film hydration method. ATR-FTIR compatibility studies revealed no significant interactions among liposome formulation components. TEM images confirmed spherical morphology, stability, and an ideal size range (180-200 nm) for improved blood circulation. At pH 5.5, liposomes exhibited increased size and positive zeta potential, indicating pH-sensitive properties due to CHEMS response to the acidic tumor microenvironment. Conversely, at pH 7.4, liposomes showed a slightly larger size (199.25 ± 1.64 nm) and a more negative zeta potential (-36.94 ± 0.32 mV), suggesting successful PEG-SpH surface modification, enhancing stability, and reducing aggregation. PTX-loaded PEG-SpH liposomes demonstrated high encapsulation efficiency (84.57 ± 0.92% w/w) and drug loading capacity (4.12 ± 0.26% w/w). In-vitro drug release studies revealed accelerated first-order PTX release at pH 5.5 and a controlled zero-order release at pH 7.4. Cellular uptake studies on MCF-7 cells demonstrated enhanced PTX uptake, attributed to mPEG-PCL incorporation prolonging circulation time and CHEMS facilitating PTX release in the tumor microenvironment. Furthermore, PTX-loaded PEG-SpH liposomes exhibited significantly improved cytotoxicity with an IC50 value of 1.107 µM after 72-h incubation, approximately 90% lower than plain PTX solution. Stability studies confirmed the robustness of the liposomal formulation under various storage conditions. These findings highlight the potential of PEGylated pH-responsive liposomes as effective nanocarriers for enhancing PTX therapy against breast cancer.
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Affiliation(s)
- Harsh P Nijhawan
- Shobhaben Pratapbhai Patel School of Pharmacy & Technology Management, SVKM's NMIMS (Deemed to Be University), Mumbai, India
| | - Pooja Shyamsundar
- Shobhaben Pratapbhai Patel School of Pharmacy & Technology Management, SVKM's NMIMS (Deemed to Be University), Mumbai, India
| | - Bala Prabhakar
- Shobhaben Pratapbhai Patel School of Pharmacy & Technology Management, SVKM's NMIMS (Deemed to Be University), Mumbai, India
| | - Khushwant S Yadav
- Shobhaben Pratapbhai Patel School of Pharmacy & Technology Management, SVKM's NMIMS (Deemed to Be University), Mumbai, India.
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Walter M, Bresinsky M, Zimmer O, Pockes S, Goepferich A. Conditional Cell-Penetrating Peptide Exposure as Selective Nanoparticle Uptake Signal. ACS APPLIED MATERIALS & INTERFACES 2024; 16:37734-37747. [PMID: 39010308 DOI: 10.1021/acsami.4c07821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/17/2024]
Abstract
A major bottleneck diminishing the therapeutic efficacy of various drugs is that only small proportions of the administered dose reach the site of action. One promising approach to increase the drug amount in the target tissue is the delivery via nanoparticles (NPs) modified with ligands of cell surface receptors for the selective identification of target cells. However, since receptor binding can unintentionally trigger intracellular signaling cascades, our objective was to develop a receptor-independent way of NP uptake. Cell-penetrating peptides (CPPs) are an attractive tool since they allow efficient cell membrane crossing. So far, their applicability is severely limited as their uptake-promoting ability is nonspecific. Therefore, we aimed to achieve a conditional CPP-mediated NP internalization exclusively into target cells. We synthesized different CPP candidates and investigated their influence on nanoparticle stability, ζ-potential, and uptake characteristics in a core-shell nanoparticle system consisting of poly(lactid-co-glycolid) (PLGA) and poly(lactic acid)-poly(ethylene glycol) (PLA10kPEG2k) block copolymers with CPPs attached to the PEG part. We identified TAT47-57 (TAT) as the most promising candidate and subsequently combined the TAT-modified PLA10kPEG2k polymer with longer PLA10kPEG5k polymer chains, modified with the potent angiotensin-converting enzyme 2 (ACE2) inhibitor MLN-4760. While MLN-4760 enables selective target cell identification, the additional PEG length hides the CPP during a first unspecific cell contact. Only after the previous selective binding of MLN-4760 to ACE2, the established spatial proximity exposes the CPP, triggering cell uptake. We found an 18-fold uptake improvement in ACE2-positive cells compared to unmodified particles. In summary, our work paves the way for a conditional and thus highly selective receptor-independent nanoparticle uptake, which is beneficial in terms of avoiding side effects.
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Affiliation(s)
- Melanie Walter
- Department of Pharmaceutical Technology, University of Regensburg, 93053 Regensburg, Bavaria, Germany
| | - Merlin Bresinsky
- Department of Medicinal Chemistry I, University of Regensburg, 93053 Regensburg, Bavaria, Germany
| | - Oliver Zimmer
- Department of Pharmaceutical Technology, University of Regensburg, 93053 Regensburg, Bavaria, Germany
| | - Steffen Pockes
- Department of Medicinal Chemistry I, University of Regensburg, 93053 Regensburg, Bavaria, Germany
| | - Achim Goepferich
- Department of Pharmaceutical Technology, University of Regensburg, 93053 Regensburg, Bavaria, Germany
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Halder T, Patel B, Acharya N. Asiatic Acid Fabricated Nanoconstructs to Mitigate Amyloid Beta 1-42 Induced Injury in SH-SY5Y Cells In-Vitro and Ameliorates Cognitive Impairment by Dual Cholinesterase Inhibition and Attenuation of Oxidative Stress In-Vivo. Pharm Res 2023; 40:197-213. [PMID: 36376605 DOI: 10.1007/s11095-022-03428-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Accepted: 10/29/2022] [Indexed: 11/16/2022]
Abstract
PURPOSE Asiatic acid (AA) is reported for its neuroprotective potential in Alzheimer's disease (AD). This present work aimed to develop AA loaded nanostructured lipid carriers (AAN) for targeting the delivery of AA into the brain and ameliorating the cognitive deficits in AD rats. METHODS AAN was optimized using the Box-Behnken design, considering 3 factors (soya lecithin, tween 80, and high pressure homogenizer (HPH) pressure) as independent variables while particle size (PS), zeta potential (ZP) and entrapment efficiency (EE) were dependent variables. Cytotoxicity assay and internalization studies of AAN were evaluated in SH-SY5Y cells and further neuroprotective efficiency on intracellular amyloid beta (Aβ) aggregation was evaluated in Aβ 1-42 treated cells with thioflavin T (ThT). The behavioral acquisition effects were evaluated in Aβ 1-42 (5 µg/ 5 µL, intracerebroventricular (ICV), unilateral) induced AD model followed by the histology and quantification of neurotransmitters levels. RESULTS The optimized AAN revealed desired PS (44.1 ± 12.4 nm), ZP (- 47.1 ± 0.017 mv) and EE (73.41 ± 2.53%) for brain targeting delivery of AA. In-vitro, AAN exhibited better neuroprotective potential than AA suspension (AAS). AA content was 1.28 folds and 2.99 folds heightened in plasma and brain respectively after the i.p. administration of AAN as compared to AAS. The results of pharmacodynamic studies manifested the AAN treatment significantly (p < 0.05) ameliorated the cognitive deficits. CONCLUSIONS Hence, developed AAN has neuroprotective potential and should be further considered as an unconventional platform in preclinical model for the management of AD.
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Affiliation(s)
- Tripti Halder
- Department of Pharmacognosy, Institute of Pharmacy, Nirma University, Ahmedabad, 382481, Gujarat, India
| | - Bharat Patel
- Department of Pharmacognosy, Institute of Pharmacy, Nirma University, Ahmedabad, 382481, Gujarat, India
| | - Niyati Acharya
- Department of Pharmacognosy, Institute of Pharmacy, Nirma University, Ahmedabad, 382481, Gujarat, India.
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Kamalkazemi E, Dehghan G, Abedi-Gaballu F, Babaei E, Baradaran B. Umbelliprenin-loaded nanostructured lipid: A novel approach for inducing cytotoxicity and apoptosis in colorectal cancer cells by altering the p53, survivin, and Bax/Bcl2 ratio. GENE REPORTS 2022. [DOI: 10.1016/j.genrep.2022.101732] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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Ying N, Lin X, Xie M, Zeng D. Effect of surface ligand modification on the properties of anti-tumor nanocarrier. Colloids Surf B Biointerfaces 2022; 220:112944. [DOI: 10.1016/j.colsurfb.2022.112944] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Revised: 08/31/2022] [Accepted: 10/14/2022] [Indexed: 11/05/2022]
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Knoll P, Hörmann N, Nguyen Le NM, Wibel R, Gust R, Bernkop-Schnürch A. Charge converting nanostructured lipid carriers containing a cell penetrating peptide for enhanced cellular uptake. J Colloid Interface Sci 2022; 628:463-475. [DOI: 10.1016/j.jcis.2022.07.160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Revised: 07/11/2022] [Accepted: 07/26/2022] [Indexed: 10/16/2022]
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Antineoplastics Encapsulated in Nanostructured Lipid Carriers. Molecules 2021; 26:molecules26226929. [PMID: 34834022 PMCID: PMC8619566 DOI: 10.3390/molecules26226929] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Revised: 11/06/2021] [Accepted: 11/11/2021] [Indexed: 12/14/2022] Open
Abstract
Ideally, antineoplastic treatment aims to selectively eradicate cancer cells without causing systemic toxicity. A great number of antineoplastic agents (AAs) are available nowadays, with well-defined therapeutic protocols. The poor bioavailability, non-selective action, high systemic toxicity, and lack of effectiveness of most AAs have stimulated the search for novel chemotherapy protocols, including technological approaches that provide drug delivery systems (DDS) for gold standard medicines. Nanostructured lipid carriers (NLC) are DDS that contain a core of solid and lipid liquids stabilised by surfactants. NLC have high upload capacity for lipophilic drugs, such as the majority of AAs. These nanoparticles can be prepared with a diversity of biocompatible (synthetic or natural) lipid blends, administered by different routes and functionalised for targeting purposes. This review focused on the research carried out from 2000 to now, regarding NLC formulations for AAs (antimetabolites, antimitotics, alkylating agents, and antibiotics) encapsulation, with special emphasis on studies carried out in vivo. NLC systems for codelivery of AAs were also considered, as well as those for non-classical drugs and therapies (natural products and photosensitisers). NLC have emerged as powerful DDS to improve the bioavailability, targeting and efficacy of antineoplastics, while decreasing their toxic effect in the treatment of different types of cancer.
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Kamalkazemi E, Abedi-Gaballu F, Mohammad Hosseini TF, Mohammadi A, Mansoori B, Dehghan G, Baradaran B, Sheibani N. Glimpse into Cellular Internalization and Intracellular Trafficking of Lipid-Based Nanoparticles in Cancer Cells. Anticancer Agents Med Chem 2021; 22:1897-1912. [PMID: 34488605 DOI: 10.2174/1871520621666210906101421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Revised: 06/14/2021] [Accepted: 06/27/2021] [Indexed: 11/22/2022]
Abstract
Lipid-based nanoparticles as drug delivery carriers have been mainly used for delivery of anti-cancer therapeutic agents. Lipid-based nanoparticles, due to their smaller particle size and similarity to cell membranes, are readily internalized into cancer cells. Interestingly, cancer cells also overexpress receptors for specific ligands including folic acid, hyaluronic acid, and transferrin on their surface. This allows the use of these ligands for surface modification of the lipid-based nanoparticle. These modifications then allow the specific recognition of these ligand-coated nanoparticles by their receptors on cancer cells allowing the targeted gradual intracellular accumulation of the functionalized nanoplatforms. These interactions could eventually enhance the internalization of desired drugs via increasing ligand-receptor mediated cellular uptake of the nanoplatforms. The cellular internalization of the nanoplatforms also varies and depends on their physicochemical properties including particle size, zeta potential, and shape. The cellular uptake is also influenced by the types of ligand internalization pathway utilized by cells such as phagocytosis, macropinocytosis, and multiple endocytosis pathways. In this review, we will classify and discuss lipid based nanoparticles engineered to express specific ligands, and are recognized by their receptors on cancer cell, and their cellular internalization pathways. Moreover, the intracellular fate of nanoparticles decorated with specific ligands and the best internalization pathways (caveolae mediated endocytosis) for safe cargo delivery will be discussed.
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Affiliation(s)
- Elham Kamalkazemi
- Department of Biology, Faculty of Natural Sciences, University of Tabriz, Tabriz. Iran
| | | | | | - Ali Mohammadi
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz. Iran
| | - Behzad Mansoori
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz. Iran
| | - Gholamreza Dehghan
- Department of Biology, Faculty of Natural Sciences, University of Tabriz, Tabriz. Iran
| | - Behzad Baradaran
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz. Iran
| | - Nader Sheibani
- Departments of Ophthalmology and Visual Sciences, Biomedical Engineering, and Cell and Regenerative Biology, University of Wisconsin School of Medicine and Public Health, Madison, WI . United States
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Mittal D, Biswas L, Verma AK. Redox resetting of cisplatin-resistant ovarian cancer cells by cisplatin-encapsulated nanostructured lipid carriers. Nanomedicine (Lond) 2021; 16:979-995. [PMID: 33970681 DOI: 10.2217/nnm-2020-0400] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Aim: To sensitize cisplatin (Cis)-resistant ovarian cancer cells toward Cis using Cis-loaded nanostructured lipid carriers (CisNLCs). Materials & methods: CisNLCs were synthesized and characterized using dynamic light scattering, Fourier transform IR and x-ray diffraction (XRD). Sensitivity of PA-1 and CaOV3 cells to Cis and its biotoxicity were assessed. Further, expression of the Cis-resistance markers GSTPi and ATP7B, and apoptotic markers Bax, Bcl2 and Cas9 were quantified by real-time PCR. Results: The size of synthesized CisNLCs was approximately 179.3 ± 2.32 nm and surface charge was -33.9 ± 1.47 mV. IC50 was 210 μg/ml in PA-1 and 500 μg/ml in CaOV3. CisNLCs modulated reactive oxygen species levels in CaOV3 cells. Reduced GSTPi and decreased Cis efflux via ATP7B sequestration caused Cis to accumulate in cytoplasm, thereby augmenting apoptosis in cells. Conclusion: CisNLCs sensitize CaOV3 by redox resetting, indicating their immense therapeutic potential.
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Affiliation(s)
- Disha Mittal
- Department of Zoology, Nanobiotech Lab, Kirori Mal College, University of Delhi, Delhi, 110007, India
| | - Largee Biswas
- Department of Zoology, Nanobiotech Lab, Kirori Mal College, University of Delhi, Delhi, 110007, India
| | - Anita Kamra Verma
- Department of Zoology, Nanobiotech Lab, Kirori Mal College, University of Delhi, Delhi, 110007, India
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Wu L, Zhao L, Su X, Zhang P, Ling G. Repaglinide-loaded nanostructured lipid carriers with different particle sizes for improving oral absorption: preparation, characterization, pharmacokinetics, and in situ intestinal perfusion. Drug Deliv 2019; 27:400-409. [PMID: 31729898 PMCID: PMC8216444 DOI: 10.1080/10717544.2019.1689313] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Repaglinide-loaded nanostructured lipid carriers (REP-NLCs) with different particle sizes were successfully designed and prepared to investigate the permeation and absorption ability by in situ single-pass intestinal perfusion (SPIP) study and pharmacokinetics. Both of the formulations prepared by solvent diffusion method exhibited a spherical shape under transmission electron microscopy (TEM) and similar zeta potential value of –11 mV. The particles size, encapsulation efficiency (EE), drug loading (DL) of REP-NLCs-Small and REP-NLCs-Large size preparations were about 79 nm and 325 nm, 96.83% and 98.60%, 4.41% and 3.05%, respectively. Besides, both REP-NLCs showed good colloidal stability and had no burst release phenomenon compared with REP-Sol. SPIP demonstrated the improved membrane permeability for NLCs compared with REP-Sol, especially NLCs-Small size preparation. The bioavailability increased sequentially in REP-Sol, REP-NLCs-Large, and REP-NLCs-Small, and the difference between each other was statistical significant. Our investigations demonstrate that NLCs with small particles size of 50–100 nm, such as 79 nm, are able to enhance absorption performance of a poorly soluble repaglinide compared with large particles size, such as 325 nm, by significantly improving the absorption in jejunum, and colon of rats and thus well improving oral bioavailability.
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Affiliation(s)
- Lei Wu
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, China
| | - Lin Zhao
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, China
| | - Xitong Su
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, China
| | - Peng Zhang
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, China
| | - Guixia Ling
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, China
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Pu X, Zhao L, Li J, Song R, Wang Y, Yu K, Hou X, Qiao P, Zong L, Chang S. A polymeric micelle with an endosomal pH-sensitivity for intracellular delivery and enhanced antitumor efficacy of hydroxycamptothecin. Acta Biomater 2019; 88:357-369. [PMID: 30822554 DOI: 10.1016/j.actbio.2019.02.039] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2018] [Revised: 02/15/2019] [Accepted: 02/25/2019] [Indexed: 12/31/2022]
Abstract
Amphiphilic poly(ethylene glycol)-imino-poly(benzyl-l-aspartate) (PIPA) and poly(ethylene glycol)-poly(benzyl-l-aspartate) (PPA) block copolymers were synthesized as pH-responsive and pH-nonresponsive copolymers, respectively. Polymer micelles were fabricated by the film dispersion method, and hydroxycamptothecin (HCPT) was physically encapsulated into the micelles. The average diameter of the HCPT-loaded PIPA micelles (PIPAH micelles) was approximately 230 nm, which was slightly smaller than that of the HCPT-loaded PPA micelles (PPAH micelles, approximately 260 nm). The drug-loading content and encapsulation efficiency of the PIPAH micelles (3.33% and 68.89%, respectively) were slightly higher than those of the PPAH micelles (2.90% and 59.68%, respectively). The PIPAH micelles exhibited better colloid stability, storage stability, and plasma stability than the PPAH micelles. Drug release from the PIPAH micelles with imino groups was pH dependent, and more than 75% or 65% of the loaded HCPT was released within 24 h in weakly acidic media (pH 5.0 or 6.0, respectively). An in vitro cell assay demonstrated that the pH-sensitive micelles exhibited potent suppression of cancer cell proliferation and little cytotoxicity on normal cells. Additionally, these micelles could be efficiently internalized by the tumor cells through macropinocytosis- and caveolin-mediated endocytotic pathways. HCPT-loaded micelles had longer circulation time than the HCPT solution in a pharmacokinetic study. In vivo antitumor experiments indicate that the PIPAH micelles had better antitumor efficacy than the pH-insensitive PPAH micelles and the HCPT solution. Therefore, the pH-responsive PIPAH micelles have great potential for high-efficiency delivery of HCPT. STATEMENT OF SIGNIFICANCE: In this study, a new type of pH-responsive amphiphilic copolymer, poly(ethylene glycol)-imino-poly(benzyl-l-aspartate) (PIPA) block copolymer, was synthesized. This copolymer had then self-assembled to form nanomicelles for tumor intracellular delivery of hydroxycamptothecin (HCPT) for the first time. In in vitro test, the PIPAH micelles exhibited adequate stability and pH-dependent drug release. To one's excitement, the PIPAH micelles exhibited better antitumor efficacy and biosafety than the pH-insensitive micelles (PPAH) and the HCPT solution in in vitro and in vivo antitumor experiments. Therefore, the pH-responsive micelles in this study have significant potential to be used for high-performance delivery of HCPT and potentially for the targeted delivery of other cancer therapeutic agents. The polymer designed in this study can be used as a carrier of poorly soluble drugs or other active ingredients.
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Wang L. Preparation and in vitro evaluation of an acidic environment-responsive liposome for paclitaxel tumor targeting. Asian J Pharm Sci 2017; 12:470-477. [PMID: 32104360 PMCID: PMC7032246 DOI: 10.1016/j.ajps.2017.05.008] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2017] [Revised: 04/28/2017] [Accepted: 05/20/2017] [Indexed: 02/07/2023] Open
Abstract
Paclitaxel (PTX) is an important cancer chemotherapeutic drug. To ameliorate the disadvantages of paclitaxel, this study designed liposomes to load paclitaxel, adding the acid-sensitive material cholesteryl hemisuccinate (CHEMS) to increase the accumulation of the drug in the tumor site. To begin, we used a high-performance liquid chromatography (HPLC) method to determine the content of PTX and the encapsulation efficiency. Then, we prepared paclitaxel-loaded acid-sensitive liposomes (PTX ASLs) by a thin-film dispersion method. We investigated the physical and chemical properties of the liposomes. The particle size was 210.8 nm, the polydispersity index (PDI) was 0.182 and the ζ-potential was -31.2 mV. The liposome shape was observed by transmission electron microscopy (TEM), and the results showed that the liposomes were round with a homogenous size distribution. The release characteristics of the liposomes in vitro were studied via a dynamic dialysis method. The results showed that the prepared liposomes had acid sensitivity and sustained release properties. An in vitro cellular uptake assay of MCF-7 cells showed that the cell uptake of coumarin-6-loaded acid-sensitive liposomes was significantly higher than that of free coumarin-6. The cytotoxicity of the PTX ASLs was significantly higher than that of paclitaxel. In conclusion, these results showed that the prepared liposomes had clear acid-sensitive release characteristics and a higher cell uptake rate and cytotoxicity than free PTX. The system is very suitable for targeted cancer therapy with paclitaxel.
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Affiliation(s)
- Lianqin Wang
- Qilu University of Technology, No. 3501, Daxue Road, Jinan 250353, China
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13
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Surface modification of lipid-based nanocarriers for cancer cell-specific drug targeting. JOURNAL OF PHARMACEUTICAL INVESTIGATION 2017. [DOI: 10.1007/s40005-017-0329-5] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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Sun M, Zhu Z, Wang H, Jin S, Yang X, Han C, Pan W. Polyarginine and PEG-AEYLR comodified nanostructured lipid carrier: 10mol% uncleavable PEG-AEYLR showed no shielding effect to polyarginine in vitro while maintaining good tumor targeting in vivo. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2017; 46:284-292. [PMID: 28355889 DOI: 10.1080/21691401.2017.1307211] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
We constructed a dual ligands-modified nanostructured lipid carrier (NLC) called PAR-NLC, in which the epidermal growth factor receptor (EGFR)-targeted small peptide AEYLR was attached to the distal end of PEG2000 anchored on the NLC surface naming PEG-AEYLR, and poly-arginine (R8) as a classic cell-penetrating peptide was attached directly to the NLC surface. PAR-NLC was near-spherical particle with average size ∼50 nm and zeta potential at +14.09 mV; the cellular uptake of PAR-NLC showed synergistic effect of the two peptides, presented as significant superior cellular uptake in EGFR-positive cells NCI-H1299 and S180 over EGFR-negative cell K562. In the animal optical imaging study, 2 h after the administration of the Dir-loaded PAR-NLC, maximum Dir signal appeared in tumor tissue, indicating prompt tumor targeting effect, as time prolonged to 48 h, the Dir signal attenuated in the organs except tumor, suggesting constant clearance from the body. In the in vivo antitumor study, in premise of the same dose, paclitaxel-loaded PAR-NLC exhibited better antitumor and safety effect than Taxol, the body weight of the mice was more stable and tumor size was smaller. In summary, PAR-NLC was a potential drug carrier to deliver anticancer drugs safely and effectively.
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Affiliation(s)
- Mingshuang Sun
- a School of Pharmacy , Shenyang Pharmaceutical University , Shenyang , China.,b School of Pharmacy , Qiqihar Medical University , Qiqihar , China
| | - Zhihong Zhu
- a School of Pharmacy , Shenyang Pharmaceutical University , Shenyang , China
| | - Huixin Wang
- a School of Pharmacy , Shenyang Pharmaceutical University , Shenyang , China
| | - Shanshan Jin
- b School of Pharmacy , Qiqihar Medical University , Qiqihar , China
| | - Xinggang Yang
- a School of Pharmacy , Shenyang Pharmaceutical University , Shenyang , China
| | - Cuiyan Han
- b School of Pharmacy , Qiqihar Medical University , Qiqihar , China
| | - Weisan Pan
- a School of Pharmacy , Shenyang Pharmaceutical University , Shenyang , China
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