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Ultrasonic Extraction and Separation of Taxanes from Taxus cuspidata Optimized by Response Surface Methodology. SEPARATIONS 2022. [DOI: 10.3390/separations9080193] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Taxanes are natural compounds with strong antitumor activity. In this study, we first extracted taxanes from the needles of Taxus cuspidata using ultrasonic (US) extraction, and then assessed the effects of different extraction conditions on the yields of eight target compounds. Response surface methodology (RSM) was further used to optimize the extraction conditions: when the liquid-to-solid ratio was 20.88 times, ultrasonic power was 140.00 W, ultrasonic time was 47.63 min, and ethanol content in solvent was 83.50%, taxane yields reached the maximum value of 354.28 μg/g. Under these conditions, the actual extraction rate of taxanes from the needles was 342.27 μg/g. The scanning electron microscopy (SEM) results indicated that the morphology of the needles, suspension cells, and callus of Taxus cuspidata extracted by ultrasonic wave had changed, the pores of the sections of the needles extracted by ultrasonic wave had become relatively loose, and the pore diameter had obviously increased. The callus and overall structure of the suspension cells extracted by ultrasonic wave were destroyed, forming cell fragments. The components of Taxus cuspidata are complex; the high-performance liquid chromatography (HPLC) method established in this paper is suitable for the rapid and effective separation of taxanes in Taxus cuspidata. We systematically and comprehensively compared the yields of taxanes in needles, callus, and suspension cells of Taxus cuspidata, and the taxane yields were increased by the suspension cell culture.
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The in vivo fate of polymeric micelles. Adv Drug Deliv Rev 2022; 188:114463. [PMID: 35905947 DOI: 10.1016/j.addr.2022.114463] [Citation(s) in RCA: 33] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2022] [Revised: 06/10/2022] [Accepted: 07/15/2022] [Indexed: 12/12/2022]
Abstract
This review aims to provide a systemic analysis of the in vivo, as well as subcellular, fate of polymeric micelles (PMs), starting from the entry of PMs into the body. Few PMs are able to cross the biological barriers intact and reach the circulation. In the blood, PMs demonstrate fairly good stability mainly owing to formation of protein corona despite controversial results reported by different groups. Although the exterior hydrophilic shells render PMs "long-circulating", the biodistribution of PMs into the mononuclear phagocyte systems (MPS) is dominant as compared with non-MPS organs and tissues. Evidence emerges to support that the copolymer poly(ethylene glycol)-poly(lactic acid) (PEG-PLA) is first broken down into pieces of PEG and PLA and then remnants to be eliminated from the body finally. At the cellular level, PMs tend to be internalized via endocytosis due to their particulate nature and disassembled and degraded within the cell. Recent findings on the effect of particle size, surface characteristics and shape are also reviewed. It is envisaged that unraveling the in vivo and subcellular fate sheds light on the performing mechanisms and gears up the clinical translation of PMs.
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Lin H, Yuan Y, Hang T, Wang P, Lu S, Wang H. Matrix-assisted laser desorption/ionization mass spectrometric imaging the spatial distribution of biodegradable vascular stents using a self-made semi-quantitative target plate. J Pharm Biomed Anal 2022; 219:114888. [PMID: 35752027 DOI: 10.1016/j.jpba.2022.114888] [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: 04/04/2022] [Revised: 05/24/2022] [Accepted: 06/08/2022] [Indexed: 11/19/2022]
Abstract
In recent years, the development and optimization of biodegradable coronary stents have become the research focus of many medical device manufacturers and scientific research institutions since they can be completely degraded and absorbed, and they restore vascular function. However, there is a lack of in situ quantification of these stents spatially in tissue in vivo. In this study, matrix-assisted laser desorption/ionization (MALDI) Fourier transform ion cyclotron resonance (FT ICR) and time-of-flight (TOF) mass spectrometric imaging (MSI) were used to analyze the time-dependent distributions of a biodegradable vascular scaffold, which consisted of copolymers of lactic acid and glycolic acid (PLGA) and its degradation products in cross-sections and longitudinal sections of blood vessels. The MALDI-MSI methods for analyzing the distribution of PLGA and its derivatives in vivo were established by optimizing the conditions of sample pretreatment and mass spectrometry (MS). In order to semi-quantify the contents of PLGA degradation products in blood vessels, self-made stainless-steel and indium tin oxide (ITO) target plates were developed to compare and establish the standard curves for semi-quantitative analysis. The target plate can be placed on the target carrier of MS simultaneously with the conductive slide, which can simultaneously carry out vapor deposition or spray on the substrate, to ensure the parallelism of the pretreatment experiments between the standards and the actual vascular samples. The proposed method provided a powerful tool for evaluating the distributions and degradation process of biological stent materials in the coronary artery, as well as provided technical support for the research and development of degradable biological stents and product optimization.
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Affiliation(s)
- Houwei Lin
- Department of Pediatric surgery, Jiaxing Women and Children Hospital Affiliated to Wenzhou Medical University, Jiaxing 314050, China
| | - Yinlian Yuan
- Department of Paediatric Surgery, Xin Hua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200092, China
| | - Tian Hang
- Department of Pediatric surgery, Jiaxing Women and Children Hospital Affiliated to Wenzhou Medical University, Jiaxing 314050, China
| | - Peng Wang
- Department of Pediatric surgery, Jiaxing Women and Children Hospital Affiliated to Wenzhou Medical University, Jiaxing 314050, China
| | - Shijiao Lu
- Department of Pediatric surgery, Jiaxing Women and Children Hospital Affiliated to Wenzhou Medical University, Jiaxing 314050, China
| | - Hang Wang
- Instrumental Analysis Center, Shanghai Jiao Tong University, Shanghai 200240, China.
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Zhong S, Ling Z, Zhou Z, He J, Ran H, Wang Z, Zhang Q, Song W, Zhang Y, Luo J. Herceptin-decorated paclitaxel-loaded poly(lactide- co-glycolide) nanobubbles: ultrasound-facilitated release and targeted accumulation in breast cancers. Pharm Dev Technol 2020; 25:454-463. [PMID: 31873051 DOI: 10.1080/10837450.2019.1709500] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Ultrasound can promote the drug release from drug-loaded substances and alter the tumor local microenvironment to facilitate the transport of drug carriers into the tumor tissues. Based on the altered tumor microenvironment, nanobubbles (NBs) as drug carriers with surfaces functionalized with targeting ligands can reach the tumor sites, thereby increasing the efficacy of chemotherapy. Herein, paclitaxel (PTX)-loaded poly(lactide-co-glycolide) (PLGA) NBs are prepared as drug carriers with covalently conjugated herceptin (anti-HER2 monoclonal antibody) on the surface to guide the target. The effect of ultrasound on the drug release and targeting of the herceptin-conjugated drug-loaded nanobubbles (PTX-NBs-HER) on the cancerous cells is determined. The use of ultrasound significantly improves the cell targeting capability in vitro, and efficiency of enhanced permeability and retention in vivo. The combination of PTX-NBs-HER and ultrasound facilitates the release of PTX, as well as the uptake and cell apoptosis in vitro. The in vivo application of both PTX-NBs-HER and ultrasound enhances the PTX targeting and accumulation in breast cancers while reducing the transmission and distribution of PTX in healthy organs. The combination of ultrasound with PTX-NBs-HER as contrast agents and drug carriers affords an image-guided drug delivery system for the precise targeted therapy of tumors.
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Affiliation(s)
- Shigen Zhong
- Institute of Ultrasound Imaging of Chongqing Medical University, Chongqing, China
| | - Zhiyu Ling
- Institute of Ultrasound Imaging of Chongqing Medical University, Chongqing, China
| | - Zhiyi Zhou
- Department of Ultrasound, The General Hospital of Chongqing, Chongqing, China
| | - Jin He
- Department of Ultrasound, The General Hospital of Chongqing, Chongqing, China
| | - Haitao Ran
- Institute of Ultrasound Imaging of Chongqing Medical University, Chongqing, China
| | - Zhigang Wang
- Institute of Ultrasound Imaging of Chongqing Medical University, Chongqing, China
| | - Qunxia Zhang
- Institute of Ultrasound Imaging of Chongqing Medical University, Chongqing, China
| | - Weixiang Song
- Institute of Ultrasound Imaging of Chongqing Medical University, Chongqing, China
| | - Yong Zhang
- Department of Ultrasound, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Jie Luo
- Department of Ultrasound, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
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Development of a Subcellular Semimechanism-Based Pharmacokinetic/Pharmacodynamic Model to Characterize Paclitaxel Effects Delivered by Polymeric Micelles. J Pharm Sci 2019; 108:725-731. [DOI: 10.1016/j.xphs.2018.10.062] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2018] [Revised: 10/20/2018] [Accepted: 10/31/2018] [Indexed: 11/21/2022]
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Lebrón JA, Ostos FJ, López-López M, Moyá ML, Kardell O, Sánchez A, Carrasco CJ, García-Calderón M, García-Calderón CB, Rosado IV, López-Cornejo P. Preparation and characterization of metallomicelles of Ru(II). Cytotoxic activity and use as vector. Colloids Surf B Biointerfaces 2018; 175:116-125. [PMID: 30529817 DOI: 10.1016/j.colsurfb.2018.11.081] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Revised: 11/27/2018] [Accepted: 11/28/2018] [Indexed: 10/27/2022]
Abstract
The use of nanovectors in several medicinal treatments has reached a great importance in the last decade. Some drugs need to be protected to increase their lifetimes in the blood flow, to avoid degradation, to be delivered into target cells or to decrease their side effects. The goal of this work was to design and prepare nanovectors formed by novel surfactants derived from the [Ru(bpy)3]2+ complex. These amphiphilic molecules are assembled to form metallomicelles which can act as pharmaceutical agents and, at the same time, as nanovectors for several drugs. TEM images showed a structural transition from spherical to elongated micelles when the surfactant concentration increased. Fluorescence microscopy confirmed the internalization of these metallomicelles into diverse cell lines and cytotoxicity assays demonstrated specificity for some human cancer cells. The encapsulation of various antibiotics was carried out as well as a thorough study about the DNA condensation by the metallomicelles. To the best of our knowledge, applications of these metallomicelles have not been shown in the literature yet.
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Affiliation(s)
- J A Lebrón
- Departamento de Química Física, Facultad de Química, Universidad de Sevilla, c/ Prof. García González nº 1, Seville, 41012, Spain
| | - F J Ostos
- Departamento de Química Física, Facultad de Química, Universidad de Sevilla, c/ Prof. García González nº 1, Seville, 41012, Spain
| | - M López-López
- Departamento de Ingeniería Química, Química Física y Ciencias de los Materiales. Universidad de Huelva. Campus 'El Carmen', Facultad de Ciencias Experimentales, E-21071, Spain
| | - M L Moyá
- Departamento de Química Física, Facultad de Química, Universidad de Sevilla, c/ Prof. García González nº 1, Seville, 41012, Spain
| | - O Kardell
- Departamento de Química Física, Facultad de Química, Universidad de Sevilla, c/ Prof. García González nº 1, Seville, 41012, Spain
| | - A Sánchez
- Departamento de Química Física, Facultad de Química, Universidad de Sevilla, c/ Prof. García González nº 1, Seville, 41012, Spain
| | - C J Carrasco
- Departamento de Química Inorgánica, Facultad de Química, Universidad de Sevilla. Aptdo. 1203, Sevilla, ES, 41071, Spain
| | - M García-Calderón
- Departamento de Bioquímica Vegetal y Biología Molecular, Facultad de Química, c/ Prof. García González nº 1, Seville, 41012, Spain
| | - C B García-Calderón
- Instituto de Biomedicina de Sevilla (IBiS), Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla, Avda. Manuel Siurot s/n, 41013, Seville, Spain
| | - I V Rosado
- Instituto de Biomedicina de Sevilla (IBiS), Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla, Avda. Manuel Siurot s/n, 41013, Seville, Spain
| | - P López-Cornejo
- Departamento de Química Física, Facultad de Química, Universidad de Sevilla, c/ Prof. García González nº 1, Seville, 41012, Spain.
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