1
|
Chen Z, Long L, Wang J, Jiang M, Li W, Cui W, Zou L. Enhanced Tumor Site Accumulation and Therapeutic Efficacy of Extracellular Matrix-Drug Conjugates Targeting Tumor Cells. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2402040. [PMID: 38829027 DOI: 10.1002/smll.202402040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2024] [Revised: 05/14/2024] [Indexed: 06/05/2024]
Abstract
The extracellular matrix (ECM) engages in regulatory interactions with cell surface receptors through its constituent proteins and polysaccharides. Therefore, nano-sized extracellular matrix conjugated with doxorubicin (DOX) is utilized to produce extracellular matrix-drug conjugates (ECM-DOX) tailored for targeted delivery to cancer cells. The ECM-DOX nanoparticles exhibit rod-like morphology, boasting a commendable drug loading capacity of 4.58%, coupled with acid-sensitive drug release characteristics. Notably, ECM-DOX nanoparticles enhance the uptake by tumor cells and possess the ability to penetrate endothelial cells and infiltrate tumor multicellular spheroids. Mechanistic insights reveal that the internalization of ECM-DOX nanoparticle is facilitated through clathrin-mediated endocytosis and macropinocytosis, intricately involving hyaluronic acid receptors and integrins. Pharmacokinetic assessments unveil a prolonged blood half-life of ECM-DOX nanoparticles at 3.65 h, a substantial improvement over the 1.09 h observed for free DOX. A sustained accumulation effect of ECM-DOX nanoparticles at tumor sites, with drug levels in tumor tissues surpassing those of free DOX by several-fold. The profound therapeutic impact of ECM-DOX nanoparticles is evident in their notable inhibition of tumor growth, extension of median survival time in animals, and significant reduction in DOX-induced cardiotoxicity. The ECM platform emerges as a promising carrier for avant-garde nanomedicines in the realm of cancer treatment.
Collapse
Affiliation(s)
- Zhoujiang Chen
- Institute for Advanced Study, Chengdu University, Chengdu, Sichuan, 610106, P. R China
| | - Lianlin Long
- School of Pharmacy, Zunyi Medical University, Zunyi, Guizhou, 563099, P. R China
| | - Ji Wang
- School of Pharmacy, Chengdu University, Chengdu, Sichuan, 610106, P. R. China
| | - Mingli Jiang
- School of Pharmacy, Zunyi Medical University, Zunyi, Guizhou, 563099, P. R China
| | - Wei Li
- School of Pharmacy, Chengdu University, Chengdu, Sichuan, 610106, P. R. China
| | - Wenguo Cui
- Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai, 200025, P. R China
| | - Liang Zou
- Institute for Advanced Study, Chengdu University, Chengdu, Sichuan, 610106, P. R China
| |
Collapse
|
2
|
Yu DG, Gong W, Zhou J, Liu Y, Zhu Y, Lu X. Engineered shapes using electrohydrodynamic atomization for an improved drug delivery. WILEY INTERDISCIPLINARY REVIEWS. NANOMEDICINE AND NANOBIOTECHNOLOGY 2024; 16:e1964. [PMID: 38702912 DOI: 10.1002/wnan.1964] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2024] [Revised: 04/15/2024] [Accepted: 04/16/2024] [Indexed: 05/06/2024]
Abstract
The shapes of micro- and nano-products have profound influences on their functional performances, which has not received sufficient attention during the past several decades. Electrohydrodynamic atomization (EHDA) techniques, mainly include electrospinning and electrospraying, are facile in manipulate their products' shapes. In this review, the shapes generated using EHDA for modifying drug release profiles are reviewed. These shapes include linear nanofibers, round micro-/nano-particles, and beads-on-a-string hybrids. They can be further divided into different kinds of sub-shapes, and can be explored for providing the desired pulsatile release, sustained release, biphasic release, delayed release, and pH-sensitive release. Additionally, the shapes resulted from the organizations of electrospun nanofibers are discussed for drug delivery, and the shapes and inner structures can be considered together for developing novel drug delivery systems. In future, the shapes and the related shape-performance relationships at nanoscale, besides the size, inner structure and the related structure-performance relationships, would further play their important roles in promoting the further developments of drug delivery field. This article is categorized under: Therapeutic Approaches and Drug Discovery > Emerging Technologies.
Collapse
Affiliation(s)
- Deng-Guang Yu
- School of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai, China
| | - Wenjian Gong
- School of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai, China
| | - Jianfeng Zhou
- School of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai, China
| | - Yanan Liu
- School of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai, China
| | - Yunajie Zhu
- Department of Dermatology, Naval Special Medical Center, Naval Medical University, Shanghai, China
| | - Xuhua Lu
- Department of Orthopaedics, Shanghai Changzheng Hospital, Naval Medical University, Shanghai, China
| |
Collapse
|
3
|
Tao X, Liu Y, Ding Z, Xie S, Cao W, Li X. Injectable cell-targeting fiber rods to promote lipolysis and regulate inflammation for obesity treatment. Biomater Sci 2023; 11:5663-5673. [PMID: 37432672 DOI: 10.1039/d3bm00619k] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/12/2023]
Abstract
Obesity has become a worldwide public health problem and continues to be one of the leading causes of chronic diseases. Obesity treatment is challenged by large drug doses, high administration frequencies and severe side effects. Herein, we propose an antiobesity strategy through the local administration of HaRChr fiber rods loaded with chrysin and grafted with hyaluronic acid and AtsFRk fiber fragments loaded with raspberry ketone and grafted with adipocyte target sequences (ATSs). The hyaluronic acid grafts double the uptake levels of HaRChr by M1 macrophages to promote phenotype transformation from M1 to M2 through upregulating CD206 and downregulating CD86 expressions. ATS-mediated targeting and sustained release of raspberry ketone from AtsFRk increase the secretion of glycerol and adiponectin, and Oil red O staining shows much fewer lipid droplets in adipocytes. The combination treatment with AtsFRk and the conditioned media from HaRChr-treated macrophages elevates adiponectin levels, suggesting that M2 macrophages may secrete anti-inflammatory factors to stimulate adipocytes to produce adiponectin. Diet-induced obese mice showed significant weight losses of inguinal (49.7%) and epididymal (32.5%) adipose tissues after HaRChr/AtsFRk treatment, but no effect was observed on food intake. HaRChr/AtsFRk treatment reduces adipocyte volumes, lowers serum levels of triglycerides and total cholesterol and restores adiponectin levels to those of normal mice. In the meantime, HaRChr/AtsFRk treatment significantly elevates the gene expression of adiponectin and interleukin-10 and downregulates tissue necrosis factor-α expression in the inguinal adipose tissues. Thus, local injection of cell-targeting fiber rods and fragments demonstrates a feasible and effective antiobesity strategy through improving lipid metabolism and normalizing the inflammatory microenvironment.
Collapse
Affiliation(s)
- Xinyan Tao
- Institute of Biomedical Engineering, College of Medicine, Southwest Jiaotong University, Chengdu 610031, P.R. China.
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, P.R. China
| | - Yuan Liu
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, P.R. China
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, P.R. China
| | - Zhenhua Ding
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, P.R. China
| | - Shuang Xie
- Institute of Biomedical Engineering, College of Medicine, Southwest Jiaotong University, Chengdu 610031, P.R. China.
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, P.R. China
| | - Wenxiong Cao
- Institute of Biomedical Engineering, College of Medicine, Southwest Jiaotong University, Chengdu 610031, P.R. China.
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, P.R. China
| | - Xiaohong Li
- Institute of Biomedical Engineering, College of Medicine, Southwest Jiaotong University, Chengdu 610031, P.R. China.
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, P.R. China
| |
Collapse
|
4
|
Wei K, Xie S, Zhang Z, Zhang Z, Cao W, Fang Q, Li X. Surface Wettability-Switchable Janus Fiber Fragments Stabilize Pickering Emulsions for Effective Oil/Water Separation. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:6455-6465. [PMID: 37092960 DOI: 10.1021/acs.langmuir.3c00376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Pickering emulsions indicate stronger resistance against droplet coalescence than the surfactant-stabilized emulsions. To resemble the surfactant amphiphilicity, Janus fiber fragments (JFs) were herein prepared through side-by-side electrospinning of poly(styrene-maleic anhydride) (PSMA) derivatives and cryosection of the aligned fibers, followed by conjugation of hydrophobic cetylamine (C16) and hydrophilic poly(N-isopropylacrylamide) (PNIPAm) ligands on the separate sides. Orthogonal analysis table L25(56) was designed to examine the effect of process parameters on the emulsification efficiency and stability index of Pickering emulsions. The emulsification efficiency is dominated by the JF concentration and length, while the emulsion stability could be prolonged through adjusting the JF concentration and hydrophilic graft density. JF-stabilized emulsions exhibit a much higher stability index (96.4%) than that of Janus microparticle counterparts (37.7%). Though there is no apparent effect on the surface wettability, JFs with PNIPAm grafts of about 2200 Da achieve the most stable Pickering emulsions. Superparamagnetic Fe3O4 nanoparticles are inoculated into JFs to collect emulsion droplets under a magnetic field, and the emulsions could be demulsified at an elevated temperature to harvest oil. Meanwhile, the recovered JF emulsifiers could be repeatedly used without loss of the emulsification efficiency. Thus, this study demonstrates surface-switchable JFs to be effective stabilizers of Pickering emulsions and readily recycled for oil harvesting from wastewater.
Collapse
Affiliation(s)
- Kun Wei
- Institute of Biomedical Engineering, College of Medicine, Southwest Jiaotong University, Chengdu 610031, P.R. China
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, P.R. China
| | - Songzhi Xie
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, P.R. China
| | - Zhao Zhang
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, P.R. China
| | - Zhanlin Zhang
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, P.R. China
| | - Wenxiong Cao
- Institute of Biomedical Engineering, College of Medicine, Southwest Jiaotong University, Chengdu 610031, P.R. China
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, P.R. China
| | - Qibo Fang
- Institute of Biomedical Engineering, College of Medicine, Southwest Jiaotong University, Chengdu 610031, P.R. China
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, P.R. China
| | - Xiaohong Li
- Institute of Biomedical Engineering, College of Medicine, Southwest Jiaotong University, Chengdu 610031, P.R. China
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, P.R. China
| |
Collapse
|
5
|
Current understanding of passive and active targeting nanomedicines to enhance tumor accumulation. Coord Chem Rev 2023. [DOI: 10.1016/j.ccr.2023.215051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
|
6
|
Fouad R, Ali AAM. Novel electrospun fibers as carriers for delivering a biocompatible Sm(iii) nanodrug for cancer therapy: fabrication, characterization, cytotoxicity and toxicity. RSC Adv 2023; 13:1883-1891. [PMID: 36712631 PMCID: PMC9832981 DOI: 10.1039/d2ra06052c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2022] [Accepted: 12/21/2022] [Indexed: 01/13/2023] Open
Abstract
The current study represents the successful fabrication and characterization of a Sm(iii) nano complex based on 2-cyano-N'-((4-oxo-4H-chromen-3-yl)methylene)acetohydrazide (CCMA). The fibrous Sm(iii) nanocomplex has been fabricated by the electrospinning technique. SEM analysis of the electrospun fibers has revealed that the fibers have a uniform structure and smooth surface without observing Sm(iii) nanocomplex crystals, i.e. the Sm(iii) nanocomplex has been well incorporated into the fibers. In vitro antitumor activity against two carcinogenic cell lines (HepG-2 and E.A.C.) as well as in vivo toxicity of pure Sm(iii) nanocomplex and its electrospun fibers have been detected. The biological results have shown that there is a significant antitumor activity with low toxicity of the pure Sm(iii) nanocomplex and its electrospun fibers with respect to different standard antitumor drugs. Also, the electrospun fibers recorded higher cytotoxicity (IC50 = 0.1 μM (Hep-G); 0.09 μM (E.A.C)) and lower toxicity (LD50 = 350 mg kg-1) than the pure ones. The in vitro release rate of the Sm(iii) nanocomplex from electrospun fibers has also been detected. The results have shown that the burst releasing of the Sm(iii) nanocomplex is about 22% after 1 h at the beginning, then a cumulative release increased gradually over the following hours. All results demonstrate the potential use of the Sm(iii) nanocomplex as a potent antitumor drug and its electrospun fibers as superior drug carriers for the treatment of tumors.
Collapse
Affiliation(s)
- R. Fouad
- Department of Chemistry, Faculty of Education, Ain Shams UniversityRoxyCairoEgypt+20 02 22581243+20 01000212207
| | - Amira A. M. Ali
- Department of Chemistry, Faculty of Education, Ain Shams UniversityRoxyCairoEgypt+20 02 22581243+20 01000212207
| |
Collapse
|
7
|
Rodrigues CF, Fernandes N, de Melo-Diogo D, Correia IJ, Moreira AF. Cell-Derived Vesicles for Nanoparticles' Coating: Biomimetic Approaches for Enhanced Blood Circulation and Cancer Therapy. Adv Healthc Mater 2022; 11:e2201214. [PMID: 36121767 DOI: 10.1002/adhm.202201214] [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: 05/23/2022] [Revised: 09/11/2022] [Indexed: 01/28/2023]
Abstract
Cancer nanomedicines are designed to encapsulate different therapeutic agents, prevent their premature release, and deliver them specifically to cancer cells, due to their ability to preferentially accumulate in tumor tissue. However, after intravenous administration, nanoparticles immediately interact with biological components that facilitate their recognition by the immune system, being rapidly removed from circulation. Reports show that less than 1% of the administered nanoparticles effectively reach the tumor site. This suboptimal pharmacokinetic profile is pointed out as one of the main factors for the nanoparticles' suboptimal therapeutic effectiveness and poor translation to the clinic. Therefore, an extended blood circulation time may be crucial to increase the nanoparticles' chances of being accumulated in the tumor and promote a site-specific delivery of therapeutic agents. For that purpose, the understanding of the forces that govern the nanoparticles' interaction with biological components and the impact of the physicochemical properties on the in vivo fate will allow the development of novel and more effective nanomedicines. Therefore, in this review, the nano-bio interactions are summarized. Moreover, the application of cell-derived vesicles for extending the blood circulation time and tumor accumulation is reviewed, focusing on the advantages and shortcomings of each cell source.
Collapse
Affiliation(s)
- Carolina F Rodrigues
- CICS-UBI - Health Sciences Research Centre, Universidade da Beira Interior, Av. Infante D. Henrique, Covilhã, 6200-506, Portugal
| | - Natanael Fernandes
- CICS-UBI - Health Sciences Research Centre, Universidade da Beira Interior, Av. Infante D. Henrique, Covilhã, 6200-506, Portugal
| | - Duarte de Melo-Diogo
- CICS-UBI - Health Sciences Research Centre, Universidade da Beira Interior, Av. Infante D. Henrique, Covilhã, 6200-506, Portugal
| | - Ilídio J Correia
- CICS-UBI - Health Sciences Research Centre, Universidade da Beira Interior, Av. Infante D. Henrique, Covilhã, 6200-506, Portugal
| | - André F Moreira
- CICS-UBI - Health Sciences Research Centre, Universidade da Beira Interior, Av. Infante D. Henrique, Covilhã, 6200-506, Portugal.,CPIRN-UDI/IPG - Center of Potential and Innovation in Natural Resources, Research Unit for Inland Development, Instituto Politécnico da Guarda, Avenida Dr. Francisco de Sá Carneiro, Guarda, 6300-559, Portugal
| |
Collapse
|
8
|
Xie S, Li S, Cao W, Mo C, Zhang Z, Huang K, Li X. Bacteria-Templated and Dual Enzyme-Powered Microcapsule Motors To Promote Thrombus Penetration and Thrombolytic Efficacy. ACS APPLIED MATERIALS & INTERFACES 2022; 14:37553-37565. [PMID: 35948498 DOI: 10.1021/acsami.2c11213] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Antithrombotic therapy is confronted with short half-lives of thrombolytic agents and high bleeding risks. Challenges remain in the development of drug delivery systems for thorough destruction of thrombi and timely restoration of blood flow while minimizing side effects. Herein, polydopamine capsule-like micromotors with urokinase (uPA) loadings and Arg-Gly-Asp (RGD) grafts (r-u@PCM) were constructed using rod-shaped bacteria as the template, and one single opening was created on each capsule through bacterial ghost (BG) formation. Glucose oxidase and catalase were encapsulated in the large cavity of microcapsules, and their successive oxidation of glucose produced O2 bubbles, which ejected out through the single opening to propel the motion of r-u@PCM. In vitro targeting testing of r-u@PCM shows significant higher accumulations on the activated platelets than those without RGD grafts (u@PCM, 7 folds) or without enzyme loadings (r-u@PC, 11 folds). Compared with the major distribution of r-u@PC on the clot surface, r-u@PCM efficiently penetrates into clots with dense fibrin networks, and near-infrared (NIR) irradiation (r-u@PCM/NIR) promotes thrombus infiltration through increasing uPA release and thermolysis of the networks. Pharmacokinetic study shows that the loading of uPA in r-u@PCM extends the terminal half-life from 24 min to 5.5 h and the bioavailability increased 13 times. In a hindlimb venous thrombosis model, r-u@PCM/NIR treatment promotes uPA accumulations in thrombi and disrupts all the thrombi after 8 h with a full recovery of blood flows. Effective thrombolysis is also achieved even after reducing the uPA dose 5 times. Thus, this is the first attempt to fabricate rod-shaped microcapsule motors through a biologically derived method, including bacterial templating and BG formation-induced opening generation. r-u@PCM/NIR treatment promotes thrombolysis through the photothermal effect, self-propelled infiltration into thrombi, and accelerated local release of uPA, providing a prerequisite for reducing uPA dose and bleeding side effects.
Collapse
Affiliation(s)
- Songzhi Xie
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, P. R. China
- Key Laboratory for Meat Processing of Sichuan Province, School of Food and Biological Engineering, Chengdu University, Chengdu 610106, P. R. China
| | - Shang Li
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, P. R. China
- Jiulongpo Center for Disease Control and Prevention of Chongqing, Chongqing 400039, P. R. China
| | - Wenxiong Cao
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, P. R. China
| | - Chuanfei Mo
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, P. R. China
| | - Zhanlin Zhang
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, P. R. China
| | - Kun Huang
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, P. R. China
| | - Xiaohong Li
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, P. R. China
| |
Collapse
|
9
|
Xie S, Zhang P, Zhang Z, Liu Y, Chen M, Li S, Li X. Bacterial navigation for tumor targeting and photothermally-triggered bacterial ghost transformation for spatiotemporal drug release. Acta Biomater 2021; 131:172-184. [PMID: 34171461 DOI: 10.1016/j.actbio.2021.06.030] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Revised: 06/11/2021] [Accepted: 06/17/2021] [Indexed: 02/06/2023]
Abstract
Cancer chemotherapy is confronted with challenges regarding the effective delivery of chemotherapeutics into tumor cells after systemic administration. Herein, we propose a strategy to load drugs into probiotic E. coli Nissle 1917 (EcN) for self-guided navigation to tumor tissues and subsequently release the drugs with in situ transformation into bacterial ghosts (BGs). Chemotherapeutic agent 5-fluorouracil (FU) and macrophage phenotype regulator zoledronic acid (ZOL) are loaded into EcN through electroporation, followed by decoration of Au nanorods on the ECN surface to construct EcNZ/F@Au. High loading levels of 5FU (8.8%) and ZOL (10.5%) are achieved as well as high retention rates of bacterial viability (87%) and motion velocity (88%). Under near infrared (NIR) illumination the photothermal effect of Au nanorods elevates the local temperature to induce the transformation of live EcN into BGs. The created transmembrane channels initiate the gradual drug release from BGs, thus representing the first attempt to control the drug release via a biological evolution. An intermittent NIR illumination causes stepwise increases in the BG formation and drug release, which could implement an external on-off control and spatiotemporal drug release. Self-guided motion of EcN promotes efficient extravasation across blood vessels and preferential accumulation of drugs in tumors. In addition to the chemotherapeutic effect of FU, the local release of ZOL from EcNZ/F@Au enhances valid polarization of tumor-associated macrophages toward the M1 phenotype and an effective production of proinflammatory cytokines, leading to a synergistic efficacy on tumor growth inhibition. Thus, this study demonstrates a feasible strategy to integrate chemotherapy, immunotherapy, and photothermal effects in a concise manner for effective cancer treatment with few side effects. STATEMENT OF SIGNIFICANCE: Bacteria are capable to trace and colonize in hypoxic tumor tissues. Bacterial drug carriers indicate limitations in efficient drug loading and effective release modulation. Herein, we propose a strategy to load drugs into bacteria for self-guided delivery and subsequently release the drugs in tumors with in situ transformation into bacterial ghost (BGs). Drugs are loaded into live bacteria through electroporation and Au nanorods are decorated on the bacterial surface, wherein the photothermal effect, chemotherapy, and immunotherapy are integrated in a concise manner. NIR illmumination of Au nanorods elevates the local temparature, induces the BG tranformation, and activates the spatiotemporal drug release, representing the first attempt of release modulation via a biological evolution.
Collapse
|
10
|
Xu J, Jia Y, Liu M, Gu X, Li P, Fan Y. Preparation of Magnetic-Luminescent Bifunctional Rapeseed Pod-Like Drug Delivery System for Sequential Release of Dual Drugs. Pharmaceutics 2021; 13:pharmaceutics13081116. [PMID: 34452077 PMCID: PMC8398606 DOI: 10.3390/pharmaceutics13081116] [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: 05/28/2021] [Revised: 07/04/2021] [Accepted: 07/08/2021] [Indexed: 11/16/2022] Open
Abstract
Drug delivery systems (DDSs) limited to a single function or single-drug loading are struggling to meet the requirements of clinical medical applications. It is of great significance to fabricate DDSs with multiple functions such as magnetic targeting or fluorescent labeling, as well as with multiple-drug loading for enhancing drug efficacy and accelerating actions. In this study, inspired by the dual-chamber structure of rapeseed pods, biomimetic magnetic–luminescent bifunctional drug delivery carriers (DDCs) of 1.9 ± 0.3 μm diameter and 19.6 ± 4.4 μm length for dual drug release were fabricated via double-needle electrospraying. Morphological images showed that the rapeseed pod-like DDCs had a rod-like morphology and Janus dual-chamber structure. Magnetic nanoparticles and luminescent materials were elaborately designed to be dispersed in two different chambers to endow the DDCs with excellent magnetic and luminescent properties. Synchronously, the Janus structure of DDCs promoted the luminescent intensity by at least threefold compared to single-chamber DDCs. The results of the hemolysis experiment and cytotoxicity assay suggested the great blood and cell compatibilities of DDCs. Further inspired by the core–shell structure of rapeseeds containing oil wrapped in rapeseed pods, DDCs were fabricated to carry benzimidazole molecules and doxorubicin@chitosan nanoparticles in different chambers, realizing the sequential release of benzimidazole within 12 h and of doxorubicin from day 3 to day 18. These rapeseed pod-like DDSs with excellent magnetic and luminescent properties and sequential release of dual drugs have potential for biomedical applications such as targeted drug delivery, bioimaging, and sustained treatment of diseases.
Collapse
Affiliation(s)
- Junwei Xu
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, Beijing Advanced Innovation Center for Biomedical Engineering, School of Biological Science and Medical Engineering, Beihang University, Beijing 100191, China; (J.X.); (Y.J.); (M.L.); (X.G.)
| | - Yunxue Jia
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, Beijing Advanced Innovation Center for Biomedical Engineering, School of Biological Science and Medical Engineering, Beihang University, Beijing 100191, China; (J.X.); (Y.J.); (M.L.); (X.G.)
| | - Meili Liu
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, Beijing Advanced Innovation Center for Biomedical Engineering, School of Biological Science and Medical Engineering, Beihang University, Beijing 100191, China; (J.X.); (Y.J.); (M.L.); (X.G.)
| | - Xuenan Gu
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, Beijing Advanced Innovation Center for Biomedical Engineering, School of Biological Science and Medical Engineering, Beihang University, Beijing 100191, China; (J.X.); (Y.J.); (M.L.); (X.G.)
| | - Ping Li
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, Beijing Advanced Innovation Center for Biomedical Engineering, School of Biological Science and Medical Engineering, Beihang University, Beijing 100191, China; (J.X.); (Y.J.); (M.L.); (X.G.)
- Correspondence: (P.L.); (Y.F.); Tel.: +86-010-8233-9811 (P.L.); +86-010-8233-9428 (Y.F.)
| | - Yubo Fan
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, Beijing Advanced Innovation Center for Biomedical Engineering, School of Biological Science and Medical Engineering, Beihang University, Beijing 100191, China; (J.X.); (Y.J.); (M.L.); (X.G.)
- School of Medical Science and Engineering, Beihang University, Beijing 100191, China
- Correspondence: (P.L.); (Y.F.); Tel.: +86-010-8233-9811 (P.L.); +86-010-8233-9428 (Y.F.)
| |
Collapse
|
11
|
Liu Y, Li Y, Xue G, Cao W, Zhang Z, Wang C, Li X. Shape switching of CaCO 3-templated nanorods into stiffness-adjustable nanocapsules to promote efficient drug delivery. Acta Biomater 2021; 128:474-485. [PMID: 33878478 DOI: 10.1016/j.actbio.2021.04.011] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2021] [Revised: 03/21/2021] [Accepted: 04/07/2021] [Indexed: 02/06/2023]
Abstract
Geometry and mechanical property have emerged as important parameters in designing nanocarriers, in addition to their size, surface charge, and hydrophilicity. However, inconsistent and even contradictory demands regarding the shape and stiffness of nanoparticles have been noted in blood circulation, tumor accumulation, and tumor cell internalization. Herein, CaCO3 nanorods (NRs) with an aspect ratio of around 2.4 are assembled with hyaluronic acid (HA) hydrogel layers to prepare CaCO3@HA NRs. The rod geometry enables lower recognition by macrophages and higher extravasation into tumor tissues than the spherical counterpart. In response to the slightly acidic tumor matrix, the acid-labile removal of CaCO3 templates achieves shape switching into spherical HA nanocapsules (NCs). The shape switchable CaCO3@HA NRs show significantly higher uptake and cytotoxicities to 4T1 cells than CaCO3-Si@HA NRs with silica layers on CaCO3 cores to inhibit shape switching. In addition, HA NCs with 2 - 8 layers of HA hydrogels exhibit stiffness from 1.85 to 12.3 N/m, and the assembly of 4 layers shows 2- to 3-fold higher cellular uptake than those of other NCs. The shape shift satisfies long-term blood circulation of NRs, and the resulting stiffness-adjustable NCs promote tissue infiltration and intracellular accommodation, resulting in a 4-fold higher drug accumulation in tumors. The CaCO3@HA NR treatment significantly suppresses tumor growth; prolongs animal survival; inhibits lung metastasis; and eliminates systemic toxicities to blood, liver, kidney, and heart tissues. This study achieves a comprehensive understanding of the shape and stiffness effects and demonstrates a hierarchical targeting strategy to address the multiple delivery barriers for chemotherapeutic agents. STATEMENT OF SIGNIFICANCE: The different barriers involved in the drug delivery pathway have inconsistent and even contradictory demands on the shape and stiffness of nanoparticles. In the current study, in situ switching of nanorods (NRs) into spherical nanocapsules (NCs) in tumor tissues is proposed to address these dilemmas. The NR shape ensures long-term blood circulation and high tumor tissue accumulation, while the in situ switching into NCs promotes tissue infiltration and cellular internalization. NCs with different numbers of hydrogel layers also provide a robust system wherein NC stiffness is controlled as a single variable to study stiffness-dependent cellular behaviors. Thus, this straightforward design offers a comprehensive understanding of how the shape and stiffness of nanocarriers affect their biological pathways.
Collapse
|
12
|
Nikolaou M, Avraam K, Kolokithas-Ntoukas A, Bakandritsos A, Lizal F, Misik O, Maly M, Jedelsky J, Savva I, Balanean F, Krasia-Christoforou T. Superparamagnetic electrospun microrods for magnetically-guided pulmonary drug delivery with magnetic heating. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 126:112117. [PMID: 34082934 DOI: 10.1016/j.msec.2021.112117] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2021] [Revised: 03/22/2021] [Accepted: 04/16/2021] [Indexed: 11/16/2022]
Abstract
Controlled pulmonary drug delivery systems employing non-spherical particles as drug carriers attract considerable attention nowadays. Such anisotropic morphologies may travel deeper into the lung airways, thus enabling the efficient accumulation of therapeutic compounds at the point of interest and subsequently their sustained release. This study focuses on the fabrication of electrospun superparamagnetic polymer-based biodegradable microrods consisting of poly(l-lactide) (PLLA), polyethylene oxide (PEO) and oleic acid-coated magnetite nanoparticles (OA·Fe3O4). The production of magnetite-free (0% wt. OA·Fe3O4) and magnetite-loaded (50% and 70% wt. Fe3O4) microrods was realized upon subjecting the as-prepared electrospun fibers to UV irradiation, followed by sonication. Moreover, drug-loaded microrods were fabricated incorporating methyl 4-hydroxybenzoate (MHB) as a model pharmaceutical compound and the drug release profile from both, the drug-loaded membranes and the corresponding microrods was investigated in aqueous media. In addition, the magnetic properties of the produced materials were exploited for remote induction of hyperthermia under AC magnetic field, while the possibility to reduce transport losses and enhance the targeted delivery to lower airways by manipulation of the airborne microrods by DC magnetic field was also demonstrated.
Collapse
Affiliation(s)
- Maria Nikolaou
- University of Cyprus, Department of Mechanical and Manufacturing Engineering, 75, Kallipoleos Avenue, P. O. Box 20537, 1678 Nicosia, Cyprus
| | - Kyriakos Avraam
- University of Cyprus, Department of Mechanical and Manufacturing Engineering, 75, Kallipoleos Avenue, P. O. Box 20537, 1678 Nicosia, Cyprus
| | | | - Aristides Bakandritsos
- Regional Centre of Advanced Technologies and Materials, CATRIN, Palacký University, Olomouc, Czech Republic; Nanotechnology Centre, CEET, VŠB-Technical University of Ostrava, 17. listopadu 2172/15, 708 00 Ostrava-Poruba, Czech Republic
| | - Frantisek Lizal
- Brno University of Technology, Faculty of Mechanical Engineering, Energy Institute, Technicka 2896/2, Brno 616 00, Czech Republic
| | - Ondrej Misik
- Brno University of Technology, Faculty of Mechanical Engineering, Energy Institute, Technicka 2896/2, Brno 616 00, Czech Republic
| | - Milan Maly
- Brno University of Technology, Faculty of Mechanical Engineering, Energy Institute, Technicka 2896/2, Brno 616 00, Czech Republic
| | - Jan Jedelsky
- Brno University of Technology, Faculty of Mechanical Engineering, Energy Institute, Technicka 2896/2, Brno 616 00, Czech Republic
| | - Ioanna Savva
- University of Cyprus, Department of Mechanical and Manufacturing Engineering, 75, Kallipoleos Avenue, P. O. Box 20537, 1678 Nicosia, Cyprus
| | - Florica Balanean
- Romanian Academy - Timisoara Branch, Center for Fundamental and Advanced Technical Research, Laboratory of Magnetic Fluids, Mihai Viteazul Ave. 24, 300223 Timisoara, Romania
| | - Theodora Krasia-Christoforou
- University of Cyprus, Department of Mechanical and Manufacturing Engineering, 75, Kallipoleos Avenue, P. O. Box 20537, 1678 Nicosia, Cyprus.
| |
Collapse
|
13
|
Zhang Z, Zhang D, Qiu B, Cao W, Liu Y, Liu Q, Li X. Icebreaker-inspired Janus nanomotors to combat barriers in the delivery of chemotherapeutic agents. NANOSCALE 2021; 13:6545-6557. [PMID: 33885534 DOI: 10.1039/d0nr08853f] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Cancer chemotherapy remains challenging to pass through various biological and pathological barriers such as blood circulation, tumor infiltration and cellular uptake before the intracellular release of antineoplastic agents. Herein, icebreaker-inspired Janus nanomotors (JMs) are developed to address these transportation barriers. Janus nanorods (JRs) are constructed via seed-defined growth of mesoporous silica nanoparticles on doxorubicin (DOX)-loaded hydroxyapatite (HAp) nanorods. One side of JRs is grafted with urease as the motion power via catalysis of physiologically existed urea, and hyaluronidase (HAase) is on the other side to digest the viscous extracellular matrices (ECM) of tumor tissues. The rod-like feature of JMs prolongs the blood circulation, and the self-propelling force and instantaneous digestion of hyaluronic acid along the moving paths promote extravasation across blood vessels and penetration in tumor mass, leading to 2-fold higher drug levels in tumors after JM administration than those with JRs. The digestion of ECM in the diffusion paths is more effective to enhance drug retention and diffusion in tumors compared with enzyme-mediated motion. The ECM digestion and motion capabilities of JMs show no influence on the endocytosis mechanism, but lead to over 3-fold higher cellular uptake than those of pristine JRs. The JM treatment promotes therapeutic efficacy in terms of survival prolongation, tumor growth inhibition and cell apoptosis induction and causes no tumor metastasis to lungs with normal alveolar spaces. Thus, the self-driven motion and instantaneous clearance of diffusion routes demonstrate a feasible strategy to combat a series of biological barriers in the delivery of chemotherapeutic agents in favor of antitumor efficacy.
Collapse
Affiliation(s)
- Zhanlin Zhang
- School of Life Science and Engineering, Key Laboratory of Advanced Technologies of Materials, Ministry of Education, Southwest Jiaotong University, Chengdu 610031, P.R. China
| | | | | | | | | | | | | |
Collapse
|
14
|
Xu J, Li K, Liu M, Gu X, Li P, Fan Y. Studies on preparation and formation mechanism of poly(lactide-co-glycolide) microrods via one-step electrospray and an application for drug delivery system. Eur Polym J 2021. [DOI: 10.1016/j.eurpolymj.2021.110372] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
|
15
|
|
16
|
Nie J, Wang Z, Huang X, Lu G, Feng C. Uniform Continuous and Segmented Nanofibers Containing a π-Conjugated Oligo(p-phenylene ethynylene) Core via “Living” Crystallization-Driven Self-Assembly: Importance of Oligo(p-phenylene ethynylene) Chain Length. Macromolecules 2020. [DOI: 10.1021/acs.macromol.0c01199] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Jiucheng Nie
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, People’s Republic of China
- School of Physical Science & Technology, ShanghaiTech University, 100 Haike Road, Shanghai 201210, People’s Republic of China
| | - Zhiqin Wang
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, People’s Republic of China
| | - Xiaoyu Huang
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, People’s Republic of China
- School of Physical Science & Technology, ShanghaiTech University, 100 Haike Road, Shanghai 201210, People’s Republic of China
| | - Guolin Lu
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, People’s Republic of China
| | - Chun Feng
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, People’s Republic of China
| |
Collapse
|
17
|
Hierarchically targetable fiber rods decorated with dual targeting ligands and detachable zwitterionic coronas. Acta Biomater 2020; 110:231-241. [PMID: 32380183 DOI: 10.1016/j.actbio.2020.04.005] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Revised: 04/01/2020] [Accepted: 04/02/2020] [Indexed: 12/13/2022]
Abstract
The shapes of drug carriers have significant effects on the drug's blood circulation lifetime and tumor accumulation levels. In this study, nonspherical drug carriers of fiber rods are enhanced with hierarchically targeting capabilities to achieve long circulation in blood, on-demand recovery of cell targeting ligands in tumor tissues and dual ligands-mediated cellular uptake. Zwitterionic polymers are conjugated on fiber rods via acid-labile linkers as stealth coronas to reduce the capture by macrophages and shield the targeting ligands. Compared with commonly used poly(ethylene glycol), the zwitterionic grafts show significantly higher inhibition of protein adsorption and lower internalization by macrophages, leading to around 2 folds longer blood circulation and over 2.5 folds higher drug accumulation in tumors than pristine fiber rods. To address the conflicts between blood circulation and cellular uptake, the zwitterionic coronas are efficiently removed in the slightly acidic tumor microenvironment. The exposure of targeting ligands could activate the internalization by tumor cells, resulting in higher cytotoxicity and tumor accumulation than those with stable linkers. Fiber rods are grafted with dual ligands of folate and biotin, and the optimal ligand densities and ratios are determined to maximize the tumor cell uptake. Compared with other treatment, fiber rods with decorated zwitterionic coronas and acid-liable exposure of dual targeting ligands enhance the suppression of tumor growth, prolong animal survival, and cause less lung metastasis. The development of fiber rods with hierarchically targeting capabilities shows great potential in improving the blood circulation, tumor accumulation and cellular uptake, and eventually promoting therapeutic efficacy. STATEMENT OF SIGNIFICANCE: The targeted delivery of chemotherapeutic agents will encounter a series of biological and pathological barriers. In this study, fiber rods were empowered with hierarchically targeting capabilities to resolve the conflict between blood circulation and cellular uptake. This strategy has shown several advantages over the existing methods. Firstly, zwitterionic polymers were used as blood circulation ligands, and concrete evidence was provided via head-to-head comparison with commonly used poly(ethylene glycol) ligands in the macrophage uptake and in vivo tissue distribution. Secondly, the depletion of circulation ligands and on-demand exposure of targeting ligands in tumor tissues showed crucial effects on the uptake by tumor cells. Thirdly, the densities and ratios of the dual targeting ligands were initially determined for a maximal cellular internalization.
Collapse
|
18
|
Ran P, Chen W, Wei J, Qiu B, Chen M, Xie S, Li X. Macrophage Spheroids with Chronological Phenotype Shifting To Promote Therapeutic Angiogenesis in Critical Limb Ischemia. ACS APPLIED BIO MATERIALS 2020; 3:3707-3717. [DOI: 10.1021/acsabm.0c00333] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Pan Ran
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, P. R. China
| | - Weijia Chen
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, P. R. China
| | - Jiaojun Wei
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, P. R. China
| | - Bo Qiu
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, P. R. China
| | - Maohua Chen
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, P. R. China
| | - Songzhi Xie
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, P. R. China
| | - Xiaohong Li
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, P. R. China
| |
Collapse
|
19
|
Xiao Y, Lin L, Shen M, Shi X. Design of DNA Aptamer-Functionalized Magnetic Short Nanofibers for Efficient Capture and Release of Circulating Tumor Cells. Bioconjug Chem 2020; 31:130-138. [PMID: 31855600 DOI: 10.1021/acs.bioconjchem.9b00816] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The isolation of viable circulating tumor cells (CTCs) from blood is of paramount significance for early stage detection and individualized therapy of cancer. Currently, CTCs isolated by conventional magnetic separation methods are tightly coated with magnetic materials even after attempted coating removal treatments, which is not conducive for subsequent analysis of CTCs. Herein, we developed DNA aptamer-functionalized magnetic short nanofibers (aptamer-MSNFs) for efficient capture and release of CTCs. In our work, polyethylenimine (PEI)-stabilized Fe3O4 nanoparticles with a mean diameter of 22.6 nm were first synthesized and encapsulated within PEI/poly(vinyl alcohol) nanofibers via a blended electrospinning process. After a homogenization treatment to acquire the MSNFs, surface conjugation of the DNA aptamer was performed through thiol-maleimide coupling. The formed aptamer-MSNFs, with a mean diameter of 350 nm and an average length of 9.6 μm, display a saturated magnetization of 12.3 emu g-1, are capable of specifically capturing cancer cells with an efficiency of 87%, and enable the nondestructive release of cancer cells with a release efficiency of 91% after nuclease treatment. In particular, the prepared aptamer-MSNFs displayed a significantly higher release efficiency than commercial magnetic beads. The designed aptamer-MSNFs may hold great promise for CTC capture and release as well as for other cell sorting applications.
Collapse
Affiliation(s)
- Yunchao Xiao
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Chemistry, Chemical Engineering and Biotechnology , Donghua University , Shanghai 201620 , P. R. China
| | - Lizhou Lin
- Department of Ultrasound, Shanghai General Hospital , Shanghai Jiao Tong University School of Medicine , Shanghai 200080 , P. R. China
| | - Mingwu Shen
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Chemistry, Chemical Engineering and Biotechnology , Donghua University , Shanghai 201620 , P. R. China
| | - Xiangyang Shi
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Chemistry, Chemical Engineering and Biotechnology , Donghua University , Shanghai 201620 , P. R. China
| |
Collapse
|
20
|
Zhao L, Xie S, Liu Y, Liu Q, Song X, Li X. Janus micromotors for motion-capture-lighting of bacteria. NANOSCALE 2019; 11:17831-17840. [PMID: 31552986 DOI: 10.1039/c9nr05503g] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
The rapid and sensitive identification of bacteria has long been a major challenge in quality control, environmental monitoring and food safety. In the current study, the "motion-capture-lighting" strategy is proposed via integration of motion-enhanced capture of bacteria and capture-induced fluorescence turn-on of micromotors. Compared with the commonly used microtubes and microparticles, micromotors of flexible fiber rods could offer multiple interactions with the bacterial surface with less steric hindrance. Janus fiber rods (JFRs) are prepared by cryocutting of aligned fibers prepared by side-by-side electrospinning. Catalase is grafted on one side of JFRs to produce oxygen bubbles for propulsion of Janus micromotors (JMs), and mannose is conjugated on the other side for specific recognition of FimH proteins from fimbriae on the bacterial surface. The biphasic Janus structure of JFRs and the separate grafting of catalase and mannose on the opposite sides of JMs are confirmed after fluorescent labelling. JMs with aspect ratios of 0.5, 1, 2 and 4 are fabricated, and the aspect ratios of JMs show significant effects on the tracking trajectories and motion speed. JMs with the aspect ratio of 2 exhibit significantly higher magnitudes of mean square displacement (MSD) with a directional motion trajectory, leading to higher bacterial capture and larger fluorescence intensity changes. The bacteria capture leads to lighting up of JMs due to the aggregation-induced emission (AIE) effect of tetraphenylethene (TPE) derivatives. Under an ultraviolet lamp, the fluorescence color of JM suspensions turns from blue to bluish-green and to green after incubation with E. coli of 102 and 105 CFU mL-1, respectively. The fluorescence intensities of JM suspensions could be fitted to an equation versus bacterial concentrations, and the limit of detection (LOD) was around 45 CFU mL-1 within 1 min. Thus, this study demonstrates a motion-capture-lighting strategy for visual, rapid and real-time detection of bacteria without complicated sample pretreatment, expensive apparatus, and trained operators.
Collapse
Affiliation(s)
- Long Zhao
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, P.R. China.
| | | | | | | | | | | |
Collapse
|
21
|
Shahriar SMS, Mondal J, Hasan MN, Revuri V, Lee DY, Lee YK. Electrospinning Nanofibers for Therapeutics Delivery. NANOMATERIALS (BASEL, SWITZERLAND) 2019; 9:E532. [PMID: 30987129 PMCID: PMC6523943 DOI: 10.3390/nano9040532] [Citation(s) in RCA: 120] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/20/2019] [Revised: 03/21/2019] [Accepted: 03/22/2019] [Indexed: 12/19/2022]
Abstract
The limitations of conventional therapeutic drugs necessitate the importance of developing novel therapeutics to treat diverse diseases. Conventional drugs have poor blood circulation time and are not stable or compatible with the biological system. Nanomaterials, with their exceptional structural properties, have gained significance as promising materials for the development of novel therapeutics. Nanofibers with unique physiochemical and biological properties have gained significant attention in the field of health care and biomedical research. The choice of a wide variety of materials for nanofiber fabrication, along with the release of therapeutic payload in sustained and controlled release patterns, make nanofibers an ideal material for drug delivery research. Electrospinning is the conventional method for fabricating nanofibers with different morphologies and is often used for the mass production of nanofibers. This review highlights the recent advancements in the use of nanofibers for the delivery of therapeutic drugs, nucleic acids and growth factors. A detailed mechanism for fabricating different types of nanofiber produced from electrospinning, and factors influencing nanofiber generation, are discussed. The insights from this review can provide a thorough understanding of the precise selection of materials used for fabricating nanofibers for specific therapeutic applications and also the importance of nanofibers for drug delivery applications.
Collapse
Affiliation(s)
- S M Shatil Shahriar
- Department of Chemical and Biological Engineering, Korea National University of Transportation, Chungju 27469, Korea.
| | - Jagannath Mondal
- Department of Green Bio Engineering, Korea National University of Transportation, Chungju 27469, Korea.
| | - Mohammad Nazmul Hasan
- Department of Green Bio Engineering, Korea National University of Transportation, Chungju 27469, Korea.
| | - Vishnu Revuri
- Department of Green Bio Engineering, Korea National University of Transportation, Chungju 27469, Korea.
| | - Dong Yun Lee
- Department of Bioengineering, College of Engineering, and BK21 PLUS Future Biopharmaceutical Human Resources Training and Research Team, and Institute of Nano Science & Technology (INST), Hanyang University, Seoul 04763, Korea.
| | - Yong-Kyu Lee
- Department of Chemical and Biological Engineering, Korea National University of Transportation, Chungju 27469, Korea.
- Department of Green Bio Engineering, Korea National University of Transportation, Chungju 27469, Korea.
| |
Collapse
|
22
|
Xie S, Chen M, Song X, Zhang Z, Zhang Z, Chen Z, Li X. Bacterial microbots for acid-labile release of hybrid micelles to promote the synergistic antitumor efficacy. Acta Biomater 2018; 78:198-210. [PMID: 30036720 DOI: 10.1016/j.actbio.2018.07.041] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2018] [Revised: 07/13/2018] [Accepted: 07/19/2018] [Indexed: 12/16/2022]
Abstract
Bacteria have inherent properties of self-propelled navigation and specific infiltration into solid tumors. In the current study, we investigate a novel type of bacterial microbots for delivery of hybrid micelles to promote the synergistic antitumor efficacy. Escherichia coli Nissle 1917 (EcN) is used as a bacterial carrier to immobilize amphiphilic copolymers through acid-labile 2-propionic-3-methylmaleic anhydride (CDM) linkers. Doxorubicin (DOX) and α-tocopheryl succinate (TOS) are conjugated with poly(ethylene glycol) through disulfide linkers to obtain amphiphilic promicelle polymers (PMTOS and PMDOX). Tetrazine and norbornene terminals are grafted on EcN and PMTOS/PMDOX copolymers, respectively, and the mild and site-specific bioorthogonal reaction between them maintains the viability, motion ability, and tumor accumulation capability of the conjugated EcN. The PMTOS/PMDOX copolymers are released from bacterial microbots in response to the slightly acidic tumor microenvironment, followed by in situ formation of these copolymers as hybrid micelles (MD/T). The self-assembled micelles from PMTOS/PMDOX with a ratio of 1:2 demonstrate the most significant synergistic efficacy, and the released MD/T hybrid micelles exhibit cellular uptake efficiency, glutathione (GSH)-sensitive drug release, and cytotoxicities similar to those exhibited by micelles prepared by solvent evaporation. Because of the consecutive process of the self-propelling nature of bacteria and preferential accumulation of EcN in tumors, in situ formation of MD/T hybrid micelles, and intracellular drug release, bacterial microbots have shown remarkable antitumor efficacy with regard to animal survival, tumor growth, and apoptosis induction in tumor cells. Therefore, we demonstrate a feasible strategy for the construction of bacterial microbots to achieve tumor accumulation and on-demand release of multiple therapeutic agents for synergistic antitumor efficacy. STATEMENT OF SIGNIFICANCE Challenges remain in the targeted delivery of nanoparticles to solid tumors and the realization of synergistic efficacy in cancer chemotherapy. In the current study, we explore a novel class of bacterial microbots to load, deliver, and release hybrid micelles. Escherichia coli Nissle 1917 (EcN) is used as a bacterial carrier to immobilize amphiphilic copolymers through acid-labile linkers, and the released copolymers are self-assembled into micelles. The resulting bacterial microbots integrate self-propelling bacteria and self-assembling amphiphilic polymers into micelles and realize pH-responsive release of promicelle polymers from bacterial microbots and glutathione-responsive intracellular release of drugs. A synergistic antitumor efficacy is achieved using hybrid micelles, which release both doxorubicin and α-tocopheryl succinate to display toxicities in the nucleus and mitochondria, respectively.
Collapse
|
23
|
Chen S, Li R, Li X, Xie J. Electrospinning: An enabling nanotechnology platform for drug delivery and regenerative medicine. Adv Drug Deliv Rev 2018; 132:188-213. [PMID: 29729295 DOI: 10.1016/j.addr.2018.05.001] [Citation(s) in RCA: 201] [Impact Index Per Article: 33.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Revised: 04/03/2018] [Accepted: 05/01/2018] [Indexed: 02/06/2023]
Abstract
Electrospinning provides an enabling nanotechnology platform for generating a rich variety of novel structured materials in many biomedical applications including drug delivery, biosensing, tissue engineering, and regenerative medicine. In this review article, we begin with a thorough discussion on the method of producing 1D, 2D, and 3D electrospun nanofiber materials. In particular, we emphasize on how the 3D printing technology can contribute to the improvement of traditional electrospinning technology for the fabrication of 3D electrospun nanofiber materials as drug delivery devices/implants, scaffolds or living tissue constructs. We then highlight several notable examples of electrospun nanofiber materials in specific biomedical applications including cancer therapy, guiding cellular responses, engineering in vitro 3D tissue models, and tissue regeneration. Finally, we finish with conclusions and future perspectives of electrospun nanofiber materials for drug delivery and regenerative medicine.
Collapse
|
24
|
Chen Z, Liu W, Zhao L, Xie S, Chen M, Wang T, Li X. Acid-Labile Degradation of Injectable Fiber Fragments to Release Bioreducible Micelles for Targeted Cancer Therapy. Biomacromolecules 2018; 19:1100-1110. [DOI: 10.1021/acs.biomac.7b01696] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Zhoujiang Chen
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, PR China
| | - Weiping Liu
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, PR China
| | - Long Zhao
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, PR China
| | - Songzhi Xie
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, PR China
| | - Maohua Chen
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, PR China
| | - Tao Wang
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, PR China
| | - Xiaohong Li
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, PR China
| |
Collapse
|
25
|
Luo X, Chen M, Chen Z, Xie S, He N, Wang T, Li X. An implantable depot capable of in situ generation of micelles to achieve controlled and targeted tumor chemotherapy. Acta Biomater 2018; 67:122-133. [PMID: 29242159 DOI: 10.1016/j.actbio.2017.12.003] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2017] [Revised: 11/27/2017] [Accepted: 12/04/2017] [Indexed: 11/30/2022]
Abstract
Camptothecin (CPT)-containing promicelle polymers (PMCPT) based on 4-armed poly(ethylene glycol) (PEG) were developed previously to self-assemble into folate-targeted and glutathione (GSH)-sensitive micelles (MCPT). To address severe systemic toxicity and lack of tumor specificity implicated in the intravenous administration of MCPT, a micelle-generating depot has been developed by blend electrospinning of PEG-poly(lactide) (PELA) copolymers, PMCPT and polyethylene oxide (PEO). Upon implantation of the depot onto a tumor, PMCPT are sustainably released to self-assemble into MCPT on the tumor site. The release of PMCPT is adjusted by varying PEO/PELA ratios and reaches in the range of 23-92% after 30 days of incubation. By making use of the aggregation-induced emission (AIE) features of tetraphenylethylene (TPE) derivatives, the release process of TPE-containing promicelle polymers (PMTPE) from the depot and the spontaneous formation of micelles (MTPE) have been monitored from the self-assembly-induced fluorescence light-up both in vitro and in vivo. Compared with intravenous injection of MCPT, the micelle-generating depot has significantly enhanced micelle accumulation in the tumor for an extended period of time and resulted in stronger tumor inhibitory efficacy, reduced systemic toxicity and more effective inhibition of tumor metastasis, demonstrating great potential for targeted cancer therapy with sustained efficacy. STATEMENT OF SIGNIFICANCE The promicelle polymer-co-electrospun fibers are developed to form a micelle-generating depot after implantation onto the tumor. The promicelle polymers are continuously released and simultaneously self-assemble into folate-targeted and glutathione-sensitive micelles, ensuring sustained micelle delivery for more than 30 days. The process of micelle formation in the tumor tissue is visualized in vivo for the first time based on the mechanism of aggregation-induced emission. This in situ micelle formation also prevents premature drug release and rapid clearance from the bloodstream. In addition, these fibers deliver anti-cancer agents directly within tumor cells via dual selectivity (i.e. spatially selective accumulation in tumor tissues via implantation and selective internalization into tumor cells via folate receptor-mediated endocytosis) and on-demand drug release in response to cytosol GSH. They exhibit superior tumor inhibitory efficacy with minimal systemic toxicity, and prevent from malignant metastasis of cancer cells.
Collapse
Affiliation(s)
- Xiaoming Luo
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, PR China; Department of Preventive Medicine, School of Public Health, Chengdu Medical College, Chengdu 610500, PR China
| | - Maohua Chen
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, PR China
| | - Zhoujiang Chen
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, PR China
| | - Songzhi Xie
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, PR China
| | - Nan He
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, PR China
| | - Tao Wang
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, PR China.
| | - Xiaohong Li
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, PR China.
| |
Collapse
|
26
|
Doxorubicin-conjugated Escherichia coli Nissle 1917 swimmers to achieve tumor targeting and responsive drug release. J Control Release 2017; 268:390-399. [DOI: 10.1016/j.jconrel.2017.10.041] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2017] [Revised: 09/26/2017] [Accepted: 10/30/2017] [Indexed: 12/11/2022]
|
27
|
Nikolaou M, Krasia-Christoforou T. Electrohydrodynamic methods for the development of pulmonary drug delivery systems. Eur J Pharm Sci 2017; 113:29-40. [PMID: 28865687 DOI: 10.1016/j.ejps.2017.08.032] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2017] [Revised: 08/28/2017] [Accepted: 08/29/2017] [Indexed: 11/25/2022]
Abstract
Electrospinning and electrospraying are two highly versatile and scalable electrohydrodynamic methods, which have attracted considerable attention during the last years towards the fabrication of polymer-based drug delivery systems. The latter may be obtained in the form of nano- or microfibers (via electrospinning) or as drug-loaded nano- and microparticles (via electrospraying). This review article begins with an introduction on the basic principles and the important influencing parameters governing the electrospinning/electrospraying processes, followed by an overview on their use for the development of nano/microfibers and nano/microparticles destined for use in pharmaceutical applications. Focus is given on research efforts targeting in the formulation of drug delivery systems and devices designed for pulmonary drug delivery applications thus emphasizing on the potential use of electrospinning and electrospraying in the area of inhaled medicines.
Collapse
Affiliation(s)
- Maria Nikolaou
- University of Cyprus, Department of Mechanical and Manufacturing Engineering, Nicosia, Cyprus
| | | |
Collapse
|