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Liu Z, Li W, Tan X, Huang Y, Tao Y, Yang N, Yuan R, Liu L, Ge L. Transformable Magnetic Liquid-Metal Nanoplatform for Intracellular Drug Delivery and MR Imaging-Guided Microwave Thermochemotherapy. ACS Appl Mater Interfaces 2024; 16:9826-9838. [PMID: 38377530 DOI: 10.1021/acsami.3c17891] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/22/2024]
Abstract
Improved techniques for the administration of chemotherapeutic drugs are required to enhance tumor therapy efficacy and reduce the side effects of chemotherapy due to insufficient targeting and limited intratumoral drug release. Controlled drug delivery systems combined with thermotherapy are expected to play an important role in personalized tumor therapy. Herein, a novel microwave-responsive transformable magnetic liquid-metal (MLM) nanoplatform is designed for effective endosomal escape that facilitates intracellular drug delivery and enhanced anticancer therapy. The MLM nanoplatform exhibits a sensitive magnetic resonance imaging function for imaging-guided therapy and brilliant synergistic effects of chemotherapy with microwave thermal therapy to kill tumor cells. Once endocytosed by targeted tumor cells, the deep penetration of microwave energy can be absorbed by the MLM nanoplatform to convert heat and reactive oxygen species, which induces the shape transformation from nanospheres to large rods, resulting in the physical disruption of the endosomal membrane for intracellular drug release. Furthermore, the MLM nanoplatform synergistic therapy could activate immunomodulatory effects by M1 macrophage polarization and T cell infiltration, thus inhibiting tumor growth and lung metastasis. This work based on microwave-driven transformable magnetic liquid-metal nanoplatform provides novel ways to precisely control drug delivery and high-efficiency cancer therapy.
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Affiliation(s)
- Zonghao Liu
- State Key Laboratory of Digital Medical Engineering, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, China
| | - Weikun Li
- State Key Laboratory of Digital Medical Engineering, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, China
| | - Xin Tan
- State Key Laboratory of Digital Medical Engineering, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, China
| | - Yueru Huang
- Jiangsu Provincial Key Laboratory of Critical Care Medicine, Department of Critical Care Medicine, Zhongda Hospital, School of Medicine, Southeast University, Nanjing 210009, P. R. China
| | - Yinghua Tao
- State Key Laboratory of Digital Medical Engineering, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, China
| | - Ning Yang
- State Key Laboratory of Digital Medical Engineering, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, China
| | - Renqiang Yuan
- State Key Laboratory of Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors, Institute of Advanced Materials (IAM), Nanjing University of Posts and Telecommunications, Nanjing 210023, P. R. China
| | - Ling Liu
- Jiangsu Provincial Key Laboratory of Critical Care Medicine, Department of Critical Care Medicine, Zhongda Hospital, School of Medicine, Southeast University, Nanjing 210009, P. R. China
| | - Liqin Ge
- State Key Laboratory of Digital Medical Engineering, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, China
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Almalki WH. An Up-to-date Review on Protein-based Nanocarriers in the Management of Cancer. Curr Drug Deliv 2024; 21:509-524. [PMID: 37165498 DOI: 10.2174/1567201820666230509101020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2022] [Revised: 02/19/2023] [Accepted: 02/27/2023] [Indexed: 05/12/2023]
Abstract
BACKGROUND A big health issue facing the world's population is cancer. An alarming increase in cancer patients was anticipated by worldwide demographic statistics, which showed that the number of patients with different malignancies was rapidly increasing. By 2025, probably 420 million cases were projected to be achieved. The most common cancers diagnosed are breast, colorectal, prostate, and lung. Conventional treatments, such as surgery, chemotherapy, and radiation therapy, have been practiced. OBJECTIVE In recent years, the area of cancer therapy has changed dramatically with expanded studies on the molecular-level detection and treatment of cancer. Recent advances in cancer research have seen significant advances in therapies such as chemotherapy and immunotherapy, although both have limitations in effectiveness and toxicity. METHODS The development of nanotechnology for anticancer drug delivery has developed several potentials as nanocarriers, which may boost the pharmacokinetic and pharmacodynamic effects of the drug product and substantially reduce the side effects. RESULTS The advancement in non-viral to viral-based protein-based nanocarriers for treating cancer has earned further recognition in this respect. Many scientific breakthroughs have relied on protein-based nanocarriers, and proteins are essential organic macromolecules for life. It allows targeted delivery of passive or active tumors using non-viral-based protein-based nanocarriers to viral-based protein nanocarriers. When targeting cancer cells, both animal and plant proteins may be used in a formulation process to create self-assembled viruses and platforms that can successfully eradicate metastatic cancer cells. CONCLUSION This review, therefore, explores in depth the applications of non-viral to viral proteinbased noncarriers with a specific focus on intracellular drug delivery and anti-cancer drug targeting ability.
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Affiliation(s)
- Waleed H Almalki
- Department of Pharmacology and Toxicology, College of Pharmacy, Umm Aal-qura University, Saudi Arabia
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Rahamathulla M, Murugesan S, Gowda DV, Alamri AH, Ahmed MM, Osmani RAM, Ramamoorthy S, Veeranna B. The Use of Nanoneedles in Drug Delivery: an Overview of Recent Trends and Applications. AAPS PharmSciTech 2023; 24:216. [PMID: 37857918 DOI: 10.1208/s12249-023-02661-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Accepted: 09/15/2023] [Indexed: 10/21/2023] Open
Abstract
Nanoneedles (NN) are growing rapidly as a means of navigating biological membranes and delivering therapeutics intracellularly. Nanoneedle arrays (NNA) are among the most potential resources to achieve therapeutic effects by administration of drugs through the skin. Although this is based on well-established approaches, its implementations are rapidly developing as an important pharmaceutical and biological research phenomenon. This study intends to provide a broad overview of current NNA research, with an emphasis on existing approaches, applications, and types of compounds released by these systems. A nanoneedle-based delivery device with great spatial and temporal accuracy, minimal interference, and low toxicity could transfer biomolecules into living organisms. Due to its vast potential, NN has been widely used as a capable transportation system of many therapeutic active substances, from cancer therapy, vaccine delivery, cosmetics, and bio-sensing nanocarrier drugs to genes. The use of nanoneedles for drug delivery offers new opportunities for the rapid, targeted, and exact administration of biomolecules into cell membranes for high-resolution research of biological systems, and it can treat a wide range of biological challenges. As a result, the literature has analyzed existing patents to emphasize the status of NNA in biological applications.
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Affiliation(s)
- Mohamed Rahamathulla
- Department of Pharmaceutics, College of Pharmacy, King Khalid University, Abha, 62529, Saudi Arabia
| | - Santhosh Murugesan
- Department of Pharmaceutics, JSS College of Pharmacy, JSS Academy of Higher Education and Research (JSS AHER), Mysuru, 570015, Karnataka, India
| | - D V Gowda
- Department of Pharmaceutics, JSS College of Pharmacy, JSS Academy of Higher Education and Research (JSS AHER), Mysuru, 570015, Karnataka, India
| | - Ali H Alamri
- Department of Pharmaceutics, College of Pharmacy, King Khalid University, Abha, 62529, Saudi Arabia
| | - Mohammed Muqtader Ahmed
- Department of Pharmaceutics, College of Pharmacy, Prince Sattam Bin Abdulaziz University, Al-Kharj, 11942, Saudi Arabia
| | - Riyaz Ali M Osmani
- Department of Pharmaceutics, JSS College of Pharmacy, JSS Academy of Higher Education and Research (JSS AHER), Mysuru, 570015, Karnataka, India.
| | - Sathish Ramamoorthy
- Department of Pharmaceutics, JSS College of Pharmacy, JSS Academy of Higher Education and Research (JSS AHER), Mysuru, 570015, Karnataka, India
| | - Balamuralidhara Veeranna
- Department of Pharmaceutics, JSS College of Pharmacy, JSS Academy of Higher Education and Research (JSS AHER), Mysuru, 570015, Karnataka, India.
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Huynh U, Wu P, Qiu J, Prachyathipsakul T, Singh K, Jerry DJ, Gao J, Thayumanavan S. Targeted Drug Delivery Using a Plug-to-Direct Antibody-Nanogel Conjugate. Biomacromolecules 2023; 24:849-857. [PMID: 36639133 PMCID: PMC9928872 DOI: 10.1021/acs.biomac.2c01269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Targeted drug delivery using antibody-drug conjugates has attracted great attention due to its enhanced therapeutic efficacy compared to traditional chemotherapy. However, the development has been limited due to a low drug-to-antibody ratio and laborious linker-payload optimization. Herein, we present a simple and efficient strategy to combine the favorable features of polymeric nanocarriers with antibodies to generate an antibody-nanogel conjugate (ANC) platform for targeted delivery of cytotoxic agents. Our nanogels stably encapsulate several chemotherapeutic agents with a wide range of mechanisms of action and solubility. We showcase the targetability of ANCs and their selective killing of cancer cells over-expressing disease-relevant antigens such as human epidermal growth factor receptor 2, epidermal growth factor receptor, and tumor-specific mucin 1, which cover a broad range of breast cancer cell types while maintaining low to no toxicity to non-targeted cells. Overall, our system represents a versatile approach that could impact next-generation nanomedicine in antibody-targeted therapeutics.
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Affiliation(s)
- Uyen Huynh
- Department of Chemistry, University of Massachusetts, Amherst, Massachusetts 01003, United States
| | - Peidong Wu
- Department of Chemistry, University of Massachusetts, Amherst, Massachusetts 01003, United States
| | - Jingyi Qiu
- Department of Biomedical Engineering, University of Massachusetts, Amherst, Massachusetts 01003, United States
| | | | - Khushboo Singh
- Department of Chemistry, University of Massachusetts, Amherst, Massachusetts 01003, United States
| | - D. Joseph Jerry
- Center for Bioactive Delivery, Institute for Applied Life Sciences, University of Massachusetts, Amherst, Massachusetts 01003, United States
- Department of Veterinary and Animal Sciences, University of Massachusetts, Amherst, Massachusetts 01003, United States
| | - Jingjing Gao
- Department of Chemistry, University of Massachusetts, Amherst, Massachusetts 01003, United States
| | - S. Thayumanavan
- Department of Chemistry, University of Massachusetts, Amherst, Massachusetts 01003, United States
- Department of Biomedical Engineering, University of Massachusetts, Amherst, Massachusetts 01003, United States
- Center for Bioactive Delivery, Institute for Applied Life Sciences, University of Massachusetts, Amherst, Massachusetts 01003, United States
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Hughes KA, Misra B, Maghareh M, Bobbala S. Use of stimulatory responsive soft nanoparticles for intracellular drug delivery. Nano Res 2023; 16:6974-6990. [PMID: 36685637 PMCID: PMC9840428 DOI: 10.1007/s12274-022-5267-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Revised: 10/30/2022] [Accepted: 10/31/2022] [Indexed: 05/24/2023]
Abstract
Drug delivery has made tremendous advances in the last decade. Targeted therapies are increasingly common, with intracellular delivery highly impactful and sought after. Intracellular drug delivery systems have limitations due to imprecise and non-targeted release profiles. One way this can be addressed is through using stimuli-responsive soft nanoparticles, which contain materials with an organic backbone such as lipids and polymers. The choice of biomaterial is essential for soft nanoparticles to be responsive to internal or external stimuli. The nanoparticle must retain its integrity and payload in non-targeted physiological conditions while responding to particular intracellular environments where payload release is desired. Multiple internal and external factors could stimulate the intracellular release of drugs from nanoparticles. Internal stimuli include pH, oxidation, and enzymes, while external stimuli include ultrasound, light, electricity, and magnetic fields. Stimulatory responsive soft nanoparticulate systems specifically utilized to modulate intracellular delivery of drugs are explored in this review.
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Affiliation(s)
- Krystal A. Hughes
- Department of Pharmaceutical Sciences, West Virginia University School of Pharmacy, Morgantown, WV 26505 USA
| | - Bishal Misra
- Department of Pharmaceutical Sciences, West Virginia University School of Pharmacy, Morgantown, WV 26505 USA
| | - Maryam Maghareh
- Department of Clinical Pharmacy, West Virginia University School of Pharmacy, Morgantown, WV 26505 USA
| | - Sharan Bobbala
- Department of Pharmaceutical Sciences, West Virginia University School of Pharmacy, Morgantown, WV 26505 USA
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Hädrich G, Vaz GR, Bidone J, Yurgel VC, Teixeira HF, Gonçalves Dal Bó A, da Silva Pinto L, Hort MA, Ramos DF, Junior ASV, Almeida da Silva PE, Dora CL. Development of a Novel Lipid-Based Nanosystem Functionalized with WGA for Enhanced Intracellular Drug Delivery. Pharmaceutics 2022; 14. [PMID: 36297456 DOI: 10.3390/pharmaceutics14102022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Revised: 09/08/2022] [Accepted: 09/19/2022] [Indexed: 11/17/2022] Open
Abstract
Despite a considerable number of new antibiotics under going clinical trials, treatment of intracellular pathogens still represents a major pharmaceutical challenge. The use of lipid nanocarriers provides several advantages such as protection from compound degradation, increased bioavailability, and controlled and targeted drug release. Wheat germ agglutinin (WGA) is known to have its receptors on the alveolar epithelium and increase phagocytosis. The present study aimed to produce nanostructured lipid carriers with novel glycosylated amphiphilic employed to attach WGA on the surface of the nanocarriers to improve intracellular drug delivery. High-pressure homogenization was employed to prepare the lipid nanocarriers. In vitro, high-content analysis and flow cytometry assay was employed to study the increased uptake by macrophages when the nanocarriers were grafted with WGA. A lipid nanocarrier with surface-functionalized WGA protein (~200 nm, PDI > 0.3) was successfully produced and characterized. The system was loaded with a lipophilic model compound (quercetin; QU), demonstrating the ability to encapsulate a high amount of compound and release it in a controlled manner. The nanocarrier surface functionalization with the WGA protein increased the phagocytosis by macrophages. The system proposed here has characteristics to be further explored to treat intracellular pathogens.
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Maparu AK, Singh P, Rai B, Sharma A, Sivakumar S. A simple, robust and scalable route to prepare sub-50 nm soft PDMS nanoparticles for intracellular delivery of anticancer drugs. Nanotechnology 2022; 33:495102. [PMID: 36041371 DOI: 10.1088/1361-6528/ac8d99] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Accepted: 08/30/2022] [Indexed: 06/15/2023]
Abstract
Soft nanoparticles (NPs) have recently emerged as a promising material for intracellular drug delivery. In this regard, NPs derived from polydimethylsiloxane (PDMS), an FDA approved polymer can be a suitable alternative to conventional soft NPs due to their intrinsic organelle targeting ability. However, the available synthesis methods of PDMS NPs are complicated or require inorganic fillers, forming composite NPs and compromising their native softness. Herein, for the first time, we present a simple, robust and scalable strategy for preparation of virgin sub-50 nm PDMS NPs at room temperature. The NPs are soft in nature, hydrophobic and about 30 nm in size. They are stable in physiological medium for two months and biocompatible. The NPs have been successful in delivering anticancer drug doxorubicin to mitochondria and nucleus of cervical and breast cancer cells with more than four-fold decrease in IC50 value of doxorubicin as compared to its free form. Furthermore, evaluation of cytotoxicity in reactive oxygen species detection, DNA fragmentation, apoptosis-associated gene expression and tumor spheroid growth inhibition demonstrate the PDMS NPs to be an excellent candidate for delivery of anticancer drugs in mitochondria and nucleus of cancer cells.
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Affiliation(s)
- Auhin Kumar Maparu
- Physical Sciences Research Area, TCS Research, Tata Research Development and Design Centre, Tata Consultancy Services, 54-B, Hadapsar Industrial Estate, Pune, Maharashtra-411013, India
- Department of Chemical Engineering, Indian Institute of Technology Kanpur, Uttar Pradesh-208016, India
| | - Prerana Singh
- Department of Biological Sciences and Bioengineering, Indian Institute of Technology Kanpur, Uttar Pradesh-208016, India
| | - Beena Rai
- Physical Sciences Research Area, TCS Research, Tata Research Development and Design Centre, Tata Consultancy Services, 54-B, Hadapsar Industrial Estate, Pune, Maharashtra-411013, India
| | - Ashutosh Sharma
- Department of Chemical Engineering, Indian Institute of Technology Kanpur, Uttar Pradesh-208016, India
| | - Sri Sivakumar
- Department of Chemical Engineering, Indian Institute of Technology Kanpur, Uttar Pradesh-208016, India
- Material Science Programme, Indian Institute of Technology Kanpur, Uttar Pradesh-208016, India
- Thematic Unit of Excellence on Soft Nanofabrication, Indian Institute of Technology Kanpur, Uttar Pradesh-208016, India
- Centre for Environmental Science & Engineering, Indian Institute of Technology Kanpur, Uttar Pradesh- 208016, India
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Abstract
In this study, two types of the fluoroamphiphile analogs were synthesized and self-assembled into the "core-shell" micellar nanocarriers for intracellular delivery and organelle targeting. Using the fluorescent dyes or vitamin E succinate as the cargo, the drug delivery and targeting capabilities of the fluoroamphiphiles and their micelles were evaluated in the cell lines, tumor cell spheroids, and tumor-bearing mice. The "core-fluorinated" micelles exhibited favorable physicochemical properties and improved the cellular uptake of the cargo by around 20 times compared to their "shell-fluorinated" counterparts. The results also indicated that the core-fluorinated micelles underwent an efficient clathrin-mediated endocytosis and a rapid endosomal escape thereafter. Interestingly, the internalized fluoroamphiphile micelles preferentially accumulated in mitochondria, by which the efficacy of the loaded vitamin E succinate was boosted both in vitro and in vivo. Unlike the popularly used cationic mitochondrial targeting ligands, as a charge-neutral nanocarrier, the fluoroamphiphiles' mitochondrial targeting was potential independent. The mechanism study suggested that the strong binding affinity with the phospholipids, particularly the cardiolipin, played an important role in the fluoroamphiphiles' mitochondrial targeting. These charge-neutral fluoroamphiphiles might have great potential to be a simple and reliable tool for intracellular drug delivery and mitochondrial targeting.
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Affiliation(s)
- Yin Liu
- Department of Pharmaceutical Sciences, Irma Lerma Rangel College of Pharmacy, Texas A&M University, College Station, Texas 77843, United States
- School of Environment, Hangzhou Institute for Advanced Study, UCAS, Hangzhou, Zhejiang Province 330106, China
| | - Jian Zhang
- Department of Pharmaceutical Sciences, Irma Lerma Rangel College of Pharmacy, Texas A&M University, College Station, Texas 77843, United States
| | - Ying Tu
- Department of Pharmaceutical Sciences, Irma Lerma Rangel College of Pharmacy, Texas A&M University, College Station, Texas 77843, United States
| | - Lin Zhu
- Department of Pharmaceutical Sciences, Irma Lerma Rangel College of Pharmacy, Texas A&M University, College Station, Texas 77843, United States
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Zeng WN, Zhang Y, Wang D, Zeng YP, Yang H, Li J, Zhou CP, Liu JL, Yang QJ, Deng ZL, Zhou ZK. Intra-articular Injection of Kartogenin-Enhanced Bone Marrow-Derived Mesenchymal Stem Cells in the Treatment of Knee Osteoarthritis in a Rat Model. Am J Sports Med 2021; 49:2795-2809. [PMID: 34213976 DOI: 10.1177/03635465211023183] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
BACKGROUND In this study, we investigated the in vitro and in vivo chondrogenic capacity of kartogenin (KGN)-enhanced bone marrow-derived mesenchymal stem cells (BMSCs) for cartilage regeneration. PURPOSE To determine (1) whether functionalized nanographene oxide (NGO) can effectively deliver KGN into BMSCs and (2) whether KGN would enhance BMSCs during chondrogenesis in vitro and in vivo in an animal model. STUDY DESIGN Controlled laboratory study. METHODS Functionalized NGO with line chain amine-terminated polyethylene glycol (PEG) and branched polyethylenimine (BPEI) were used to synthesize biocompatible NGO-PEG-BPEI (PPG) and for loading hydrophobic KGN molecules noncovalently via π-π stacking and hydrophobic interactions (PPG-KGN). Then, PPG-KGN was used for the intracellular delivery of hydrophobic KGN by simple mixing and co-incubation with BMSCs to acquire KGN-enhanced BMSCs. The chondrogenic efficacy of KGN-enhanced BMSCs was evaluated in vitro. In vivo, osteoarthritis (OA) was induced by anterior cruciate ligament transection in rats. A total of 5 groups were established: normal (OA treated with nothing), phosphate-buffered saline (PBS; intra-articular injection of PBS), PPG-KGN (intra-articular injection of PPG-KGN), BMSCs (intra-articular injection of BMSCs), and BMSCs + PPG-KGN (intra-articular injection of PPG-KGN-preconditioned BMSCs). At 6 and 9 weeks after the surgical induction of OA, the rats received intra-articular injections of PPG-KGN, BMSCs, or KGN-enhanced BMSCs. At 14 weeks after the surgical induction of OA, radiographic and behavioral evaluations as well as histological analysis of the knee joints were performed. RESULTS The in vitro study showed that PPG could be rapidly uptaken in the first 4 hours after incubation, reaching saturation at 12 hours and accumulating in the lysosome and cytoplasm of BMSCs. Thus, PPG-KGN could enhance the efficiency of the intracellular delivery of KGN, which showed a remarkably high chondrogenic differentiation capacity of BMSCs. When applied to an OA model of cartilage injuries in rats, PPG-KGN-preconditioned BMSCs contributed to protection from joint space narrowing, pathological mineralization, OA development, and OA-induced pain, as well as improved tissue regeneration, as evidenced by radiographic, weightbearing, and histological findings. CONCLUSION Our results demonstrate that KGN-enhanced BMSCs showed markedly improved capacities for chondrogenesis and articular cartilage repair. We believe that this work demonstrates that a multifunctional nanoparticle-based drug delivery system could be beneficial for stem cell therapy. Our results present an opportunity to reverse the symptoms and pathophysiology of OA. CLINICAL RELEVANCE The intracellular delivery of KGN to produce BMSCs with enhanced chondrogenic potential may offer a new approach for the treatment of OA.
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Affiliation(s)
- Wei-Nan Zeng
- Orthopedic Research Institution, Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, China.,Department of Orthopedics, Chongqing General Hospital, University of Chinese Academy of Sciences, Chongqing, China.,Department of Orthopedics, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Yun Zhang
- Department of Traditional Chinese Medicine, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China
| | - Duan Wang
- Orthopedic Research Institution, Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, China
| | - Yi-Ping Zeng
- Department of Orthopedics, Chongqing General Hospital, University of Chinese Academy of Sciences, Chongqing, China
| | - Hao Yang
- Center for Joint Surgery, Southwest Hospital, Army Medical University, Chongqing, China
| | - Juan Li
- Center for Joint Surgery, Southwest Hospital, Army Medical University, Chongqing, China
| | - Cheng-Pei Zhou
- Department of Orthopedics, Tangdu Hospital, Air Force Medical University, Xi'an, China
| | - Jun-Li Liu
- Department of Orthopedics, Chongqing General Hospital, University of Chinese Academy of Sciences, Chongqing, China
| | - Qing-Jun Yang
- Department of Orthopedics, Chongqing General Hospital, University of Chinese Academy of Sciences, Chongqing, China
| | - Zhong-Liang Deng
- Department of Orthopedics, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Zong-Ke Zhou
- Orthopedic Research Institution, Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, China
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Pronk SD, Schooten E, Heinen J, Helfrich E, Oliveira S, van Bergen En Henegouwen PMP. Single Domain Antibodies as Carriers for Intracellular Drug Delivery: A Proof of Principle Study. Biomolecules 2021; 11:927. [PMID: 34206656 DOI: 10.3390/biom11070927] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 06/07/2021] [Accepted: 06/15/2021] [Indexed: 12/17/2022] Open
Abstract
Antibody-drug conjugates (ADCs) are currently used for the targeted delivery of drugs to diseased cells, but intracellular drug delivery and therefore efficacy may be suboptimal because of the large size, slow internalization and ineffective intracellular trafficking of the antibody. Using a phage display method selecting internalizing phages only, we developed internalizing single domain antibodies (sdAbs) with high binding affinity to rat PDGFRβ, a receptor involved in different types of diseases. We demonstrate that these constructs have different characteristics with respect to internalization rates but all traffic to lysosomes. To compare their efficacy in targeted drug delivery, we conjugated the sdAbs to a cytotoxic drug. The conjugates showed improved cytotoxicity correlating to their internalization speed. The efficacy of the conjugates was inhibited in the presence of vacuolin-1, an inhibitor of lysosomal maturation, suggesting lysosomal trafficking is needed for efficient drug release. In conclusion, sdAb constructs with different internalization rates can be designed against the same target, and sdAbs with a high internalization rate induce more cell killing than sdAbs with a lower internalization rate in vitro. Even though the overall efficacy should also be tested in vivo, sdAbs are particularly interesting formats to be explored to obtain different internalization rates.
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Zhan Q, Yi K, Li X, Cui X, Yang E, Chen N, Yuan X, Zhao J, Hou X, Kang C. Phosphatidylcholine-Engineered Exosomes for Enhanced Tumor Cell Uptake and Intracellular Antitumor Drug Delivery. Macromol Biosci 2021; 21:e2100042. [PMID: 33949800 DOI: 10.1002/mabi.202100042] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 03/31/2021] [Indexed: 12/19/2022]
Abstract
Exosomes derived from non-tumor cells hold great potential as drug delivery vehicles because of their good biosafety and natural transference of bioactive cargo between cells. However, compared to tumor-derived exosomes, efficient delivery is limited by their weak interactions with tumor cells. It is essential to engineer exosomes that improve tumor cellular internalization efficiency. A simple and effective strategy to enhance tumor cell uptake by engineering the exosome membrane lipids can be established by drawing on the role of lipids in tumor exosomes interacting with tumor cells. Amphiphilic phosphatidylcholine (PC) molecules are inserted into the membrane lipid layer of reticulocyte-derived exosomes (Exos) by simple incubation to construct PC-engineered exosomes (PC-Exos). It is demonstrated that PC-Exos showed significantly enhanced tumor cell internalization and uptake rate compared to native Exos, up to a twofold increase. After therapeutic agent loading, PC-Exos remarkably promotes intracellular drug or RNA accumulation in cancer cells, thus showing enhanced in vitro anti-tumor activity. This work demonstrates the crucial role of engineering exosomal lipids in modulating cancer cellular uptake, which may shed light on the design of high-efficiency exosome-based drug delivery carriers.
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Affiliation(s)
- Qi Zhan
- Tianjin Key Laboratory of Composite and Functional Materials, School of Materials Science and Engineering, Tianjin University, Tianjin, 300072, China
| | - Kaikai Yi
- Department of Neurosurgery, Tianjin Medical University General Hospital, Laboratory of Neuro-oncology, Tianjin Neurological Institute, Key Laboratory of Post-Neuro Injury Neuro-Repair and Regeneration in Central Nervous System, Ministry of Education and Tianjin City, Tianjin, 300052, China
| | - Xueping Li
- Tianjin Key Laboratory of Composite and Functional Materials, School of Materials Science and Engineering, Tianjin University, Tianjin, 300072, China
| | - Xiaoteng Cui
- Department of Neurosurgery, Tianjin Medical University General Hospital, Laboratory of Neuro-oncology, Tianjin Neurological Institute, Key Laboratory of Post-Neuro Injury Neuro-Repair and Regeneration in Central Nervous System, Ministry of Education and Tianjin City, Tianjin, 300052, China
| | - Eryan Yang
- Department of Neurosurgery, Tianjin Medical University General Hospital, Laboratory of Neuro-oncology, Tianjin Neurological Institute, Key Laboratory of Post-Neuro Injury Neuro-Repair and Regeneration in Central Nervous System, Ministry of Education and Tianjin City, Tianjin, 300052, China
| | - Ning Chen
- Tianjin Key Laboratory of Composite and Functional Materials, School of Materials Science and Engineering, Tianjin University, Tianjin, 300072, China
| | - Xubo Yuan
- Tianjin Key Laboratory of Composite and Functional Materials, School of Materials Science and Engineering, Tianjin University, Tianjin, 300072, China
| | - Jin Zhao
- Tianjin Key Laboratory of Composite and Functional Materials, School of Materials Science and Engineering, Tianjin University, Tianjin, 300072, China
| | - Xin Hou
- Tianjin Key Laboratory of Composite and Functional Materials, School of Materials Science and Engineering, Tianjin University, Tianjin, 300072, China
| | - Chunsheng Kang
- Department of Neurosurgery, Tianjin Medical University General Hospital, Laboratory of Neuro-oncology, Tianjin Neurological Institute, Key Laboratory of Post-Neuro Injury Neuro-Repair and Regeneration in Central Nervous System, Ministry of Education and Tianjin City, Tianjin, 300052, China
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12
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Wei Y, Zhang M, Jiao P, Zhang X, Yang G, Xu X. Intracellular Paclitaxel Delivery Facilitated by a Dual-Functional CPP with a Hydrophobic Hairpin Tail. ACS Appl Mater Interfaces 2021; 13:4853-4860. [PMID: 33474938 DOI: 10.1021/acsami.0c20180] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
In our pervious study, a dual-functional peptide R7 was developed to form a complex with paclitaxel (PTX) for enhancement of PTX translocation. However, because of the unstable noncovalent bond between R7 and PTX, PTX redistributed after the introduction of heparin, leading to R7-PTX complex dissociation, further causing less PTX penetration than expected. Thus, a novel positive CPP carrier of P9 was developed to improve CPP-PTX affinity via a double-proline (Pro, P) hairpin tail and enhance PTX translocation through the reduction of translocation energy barrier, confirmed by the MM-PBSA analysis and umbrella sampling simulation. Cellular uptake study reveals that P9 can quickly translocate into the HeLa cells within 1 min and exhibits no noticeable cytotoxicity. Compared to R7, P9 is able to help PTX translocation, leading to a remarkable increase in the intracellular concentration of PTX, eventually resulting in a significant loss in tumor cell viability. In vivo experiments demonstrate that a vein injection of P9-PTX complex dramatically inhibits tumor growth. Our study provides a novel perspective for designing CPP-facilitated drug carrier to enhance antitumor efficiency.
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Affiliation(s)
- Yuping Wei
- School of Life Science and Technology, Nanyang Normal University, Nanyang, Henan Province 473061, P.R. China
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, P.R. China
| | - Man Zhang
- Department of Oncology, Nanyang First People's Hospital, Henan Province, 473002, P.R. China
| | - Pengfei Jiao
- School of Life Science and Technology, Nanyang Normal University, Nanyang, Henan Province 473061, P.R. China
| | - Xin Zhang
- School of Life Science and Technology, Nanyang Normal University, Nanyang, Henan Province 473061, P.R. China
| | - Ganggang Yang
- Biochemical Engineering Research Centre, Anhui University of Technology, Ma'anshan, Anhui Province 243032, P.R. China
- School of Chemistry and Chemical Engineering, Anhui University of Technology, Ma'anshan, Anhui Province 243032, P.R. China
| | - Xia Xu
- Biochemical Engineering Research Centre, Anhui University of Technology, Ma'anshan, Anhui Province 243032, P.R. China
- School of Chemistry and Chemical Engineering, Anhui University of Technology, Ma'anshan, Anhui Province 243032, P.R. China
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, P.R. China
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13
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Abstract
Conventional drug solubilization strategies limit the understanding of the full potential of poorly water-soluble drugs during drug screening. Here, we propose a screening approach in which poorly water-soluble drugs are entrapped in poly(2-(methacryloyloxyethyl phosphorylcholine)-poly(2-(diisopropylaminoethyl methacryate) (PMPC-PDPA) polymersomes (POs) to enhance drug solubility and facilitate intracellular delivery. By using a human pediatric glioma cell model, we demonstrated that PMPC-PDPA POs mediated intracellular delivery of cytotoxic and epigenetic drugs by receptor-mediated endocytosis. Additionally, when delivered in combination, drug-loaded PMPC-PDPA POs triggered both an enhanced drug efficacy and synergy compared to that of a conventional combinatorial screening. Hence, our comprehensive synergy analysis illustrates that our screening methodology, in which PMPC-PDPA POs are used for intracellular codelivery of drugs, allows us to identify potent synergistic profiles of anticancer drugs.
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Affiliation(s)
- Belen Sola-Barrado
- Department of Chemistry, University College London, London WC1H 0AJ, United Kingdom.,Institute for the Physics of Living Systems, University College London, London WC1E 6BT, United Kingdom
| | - Diana M Leite
- Department of Chemistry, University College London, London WC1H 0AJ, United Kingdom.,Institute for the Physics of Living Systems, University College London, London WC1E 6BT, United Kingdom
| | - Edoardo Scarpa
- Department of Chemistry, University College London, London WC1H 0AJ, United Kingdom.,Institute for the Physics of Living Systems, University College London, London WC1E 6BT, United Kingdom
| | - Aroa Duro-Castano
- Department of Chemistry, University College London, London WC1H 0AJ, United Kingdom.,Institute for the Physics of Living Systems, University College London, London WC1E 6BT, United Kingdom
| | - Giuseppe Battaglia
- Department of Chemistry, University College London, London WC1H 0AJ, United Kingdom.,Institute for the Physics of Living Systems, University College London, London WC1E 6BT, United Kingdom.,Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute for Science and Technology (BIST), Barcelona 08036, Spain.,Catalan Institution for Research and Advanced Studies (ICREA), Barcelona 08010, Spain
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14
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Abstract
Endosomal escape is a critical step in the intracellular delivery of biomacromolecular drugs, but a quantitative, high-throughput study of endosomal-vesicle disruption remains elusive. We designed two genetically encoded split-luciferase turn-on reporter assays that can be measured rapidly in well plates on live cells using a luminometer. Both systems use nonluminescent N-terminal and C-terminal luciferase fragments that can reconstitute a functional luminescent enzyme when they are colocalized by their fusion partners. The first system uses luciferase-fragment fusion to Galectin 8 (Gal8) and CALCOCO2. Gal8 and CALCOCO2 interact following endosomal-vesicle disruption to facilitate luciferase complementation into the active enzyme, enabling a luminescence readout (G8C2 system). The second system expresses the N-terminal carbohydrate recognition domain (N-CRD) of Gal8 fused to each luciferase fragment (G8G8 system). Following endosome disruption, G8-NCRD binds to exposed glycans inside endosomes, concentrating both fragments in close proximity and reconstituting active luciferase. The G8G8 system emerged as the lead reporter candidate and was further characterized by comparing it to previously reported Gal8-YFP tracking using microscopy. We also characterized the G8G8 system response to several commercial and research drug-delivery reagents: DOTAP lipid, JetPEI, Lipofectamine 2000, and a library of polymers with known endosomal-escape activity, revealing dose-dependent increases in luminescence due to endosomal disruption. These new reporters provide a first-in-class luminescent assay to rapidly detect endosome disruption in a high-throughput format while excluding toxic formulations. Endosome-disruption screening with these turn-on assays has the potential to accelerate and to improve the rigor of programs focused on the discovery and development of intracellular biologic drug-delivery formulations.
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Affiliation(s)
- Kameron V. Kilchrist
- Department of Biomedical Engineering, Vanderbilt University, Nashville, Tennessee 37235, United States
| | - John William Tierney
- Department of Biomedical Engineering, Vanderbilt University, Nashville, Tennessee 37235, United States
| | - Craig L. Duvall
- Department of Biomedical Engineering, Vanderbilt University, Nashville, Tennessee 37235, United States
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15
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Desai AS, Hunter MR, Kapustin AN. Using macropinocytosis for intracellular delivery of therapeutic nucleic acids to tumour cells. Philos Trans R Soc Lond B Biol Sci 2020; 374:20180156. [PMID: 30967005 DOI: 10.1098/rstb.2018.0156] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Nucleic acids are a rapidly emerging therapeutic modality with the potential to become the third major drug modality alongside antibodies and small molecules. Owing to the unfavourable physico-chemical characteristics of nucleic acids, such as large size and negative charge, intracellular delivery remains a fundamental challenge to realizing this potential. Delivery technologies such as lipids, polymers and peptides have been used to facilitate delivery, with many of the most successful technologies using macropinocytosis to gain cellular entry; mostly by default rather than design. Fundamental knowledge of macropinocytosis is rapidly growing, presenting opportunities to better tailor design strategies to target this pathway. Furthermore, certain types of tumour cells have been observed to have high levels of macropinocytic activity and traffic cargo to favourable destinations within the cell for endosomal release, providing unique opportunities to further use this entry route for drug delivery. In this article, we review the delivery systems reported to be taken up by macropinocytosis and what is known about the mechanisms for regulating macropinocytosis in tumour cells. From this analysis, we identify new opportunities for exploiting this pathway for the intracellular delivery of nucleic acids to tumour cells. This article is part of the Theo Murphy meeting issue 'Macropinocytosis'.
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Affiliation(s)
- Arpan S Desai
- AstraZeneca, IMED Biotech Unit, Pharmaceutical Sciences , Aaron Klug Building, Granta Park, Cambridge CB21 6GH , UK
| | - Morag R Hunter
- AstraZeneca, IMED Biotech Unit, Pharmaceutical Sciences , Aaron Klug Building, Granta Park, Cambridge CB21 6GH , UK
| | - Alexander N Kapustin
- AstraZeneca, IMED Biotech Unit, Pharmaceutical Sciences , Aaron Klug Building, Granta Park, Cambridge CB21 6GH , UK
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16
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He L, Wang H, Han Y, Wang K, Dong H, Li Y, Shi D, Li Y. Remodeling of Cellular Surfaces via Fast Disulfide-Thiol Exchange To Regulate Cell Behaviors. ACS Appl Mater Interfaces 2019; 11:47750-47761. [PMID: 31773939 DOI: 10.1021/acsami.9b17550] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Remodeling of cellular surfaces is shown highly effective in the manipulation and control of cell behaviors via nonbiological means. By 5-thio-2-nitrobenzoate-mediated, fast, and reversible disulfide-thiol exchange, a sequential layer by layer assembly process was developed to grow albumin protein shells on cellular surfaces fixed by a disulfide-linked network, in a cytocompatible manner. The artificial shells, accomplished by a double-assembly process, were sustainable up to >1 day, and thereafter gradually bioabsorbed with unaffected cell viability. The surface engineering process enabled dynamic remodeling of cellular surfaces that effectively controlled cell behaviors including regulated cell proliferation, enhanced uptake efficiency of dextran-fluorescein isothiocyanate that is known for cell-impermeability, and targeted imaging. This unique approach was well-validated on tumor cells (B16), immune cells (DC2.4), and neutrophils, showing its potential universality for most of the cells that are rich in thiols. The new strategy will show promise in cell manipulation and targeted imaging.
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Affiliation(s)
- Lianghua He
- Shanghai Tenth People's Hospital, The Institute for Biomedical Engineering & Nano Science , Tongji University School of Medicine , Shanghai 200092 , China
| | - Huaiji Wang
- Shanghai Tenth People's Hospital, The Institute for Biomedical Engineering & Nano Science , Tongji University School of Medicine , Shanghai 200092 , China
| | - Yi Han
- Shanghai Tenth People's Hospital, The Institute for Biomedical Engineering & Nano Science , Tongji University School of Medicine , Shanghai 200092 , China
| | - Kun Wang
- School of Materials Science and Engineering , Tongji University , 4800 Caoan Road , Shanghai 201804 , China
| | - Haiqing Dong
- Shanghai Tenth People's Hospital, The Institute for Biomedical Engineering & Nano Science , Tongji University School of Medicine , Shanghai 200092 , China
| | - Yan Li
- Shanghai Tenth People's Hospital, The Institute for Biomedical Engineering & Nano Science , Tongji University School of Medicine , Shanghai 200092 , China
| | - Donglu Shi
- The Materials Science & Engineering Program, Department of Mechanical & Materials Engineering, College of Engineering & Applied Science , University of Cincinnati , Cincinnati , Ohio 45221 , United States
| | - Yongyong Li
- Shanghai Tenth People's Hospital, The Institute for Biomedical Engineering & Nano Science , Tongji University School of Medicine , Shanghai 200092 , China
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17
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Cohen-Erez I, Issacson C, Lavi Y, Shaco-Levy R, Milam J, Laster B, Gheber LA, Rapaport H. Antitumor Effect of Lonidamine-Polypeptide-Peptide Nanoparticles in Breast Cancer Models. ACS Appl Mater Interfaces 2019; 11:32670-32678. [PMID: 31414594 DOI: 10.1021/acsami.9b09886] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Biomaterials folded into nanoparticles (NPs) can be utilized as targeted drug delivery systems for cancer therapy. NPs may provide a vehicle for the anticancer drug lonidamine (LND), which inhibits glycolysis but was suspended from use at the clinical trial stage because of its hepatotoxicity due to poor solubility and pharmacokinetic properties. The NPs prepared by coassembly of the anionic polypeptide poly gamma glutamic acid (γ-PGA) and a designed amphiphilic and positively charged peptide (designated as mPoP-NPs) delivered LND to the mitochondria in cell cultures. In this study, we demonstrate that LND-mPoP-NP effective drug concentrations can be increased to reach therapeutically relevant concentrations. The self-assembled NP solution was subjected to snap-freezing and lyophilization and the resultant powder was redissolved in a tenth of the original volume. The NP size and their ability to target the proximity of the mitochondria of breast cancer cells were both maintained in this new formulation, C-LND-mPoP-NPs. Furthermore, these NPs exhibited 40% better cytotoxicity, relative to the nonlyophilized LND-mPoP-NPs and led to tumor growth inhibition with no adverse side effects upon intravenous administration in a xenograft breast cancer murine model.
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Affiliation(s)
| | | | | | - Ruthy Shaco-Levy
- Pathology Institute , Soroka Medical Center , Beer-Sheva 84105 , Israel
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18
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Xu W, Wang H, Dong L, Zhang P, Mu Y, Cui X, Zhou J, Huo M, Yin T. Hyaluronic acid-decorated redox-sensitive chitosan micelles for tumor-specific intracellular delivery of gambogic acid. Int J Nanomedicine 2019; 14:4649-4666. [PMID: 31303753 PMCID: PMC6603291 DOI: 10.2147/ijn.s201110] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2019] [Accepted: 04/25/2019] [Indexed: 12/19/2022] Open
Abstract
Introduction: Herein, a hyaluronic acid (HA)-coated redox-sensitive chitosan-based nanoparticle, HA(HECS-ss-OA)/GA, was successfully developed for tumor-specific intracellular rapid delivery of gambogic acid (GA). Materials and methods: The redox-sensitive polymer, HECS-ss-OA, was prepared through a well-controlled synthesis procedure with a satisfactory reproducibility and stable resulted surface properties of the assembled cationic micelles. GA was solubilized into the inner core of HECS-ss-OA micelles, while HA was employed to coat outside HECS-ss-OA/GA for CD44-mediated active targeting along with protection from cation-associated in vivo defects. The desirable redox-sensitivity of HA(HECS-ss-OA)/GA was demonstrated by morphology and particle size changes alongside in vitro drug release of nanoparticles in different simulated reducing environments. Results: The results of flow cytometry and confocal microscopy confirmed the HA-receptor mediated cellular uptake and burst drug release in highly reducing cytosol of HA(HECS-ss-OA)/GA. Consequently, HA(HECS-ss-OA)/GA showed the highest apoptosis induction and cytotoxicity over the non-sensitive (HA(HECS-cc-OA)/GA) and HA un-coated (HECS-ss-OA/GA) controls against A549 NSCLC model both in vitro and in vivo. Furthermore, a diminished systemic cytotoxicity was observed in HA(HECS-ss-OA)/GA treated mice compared with those treated by HA un-coated cationic ones and GA solution.
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Affiliation(s)
- Wei Xu
- Department of Pharmacy, Shandong Provincial Qian Foshan Hospital, Shandong University, Jinan 250014, People's Republic of China.,Qianfoshan Hospital, The First Hospital Affiliation with Shandong First Medical University, Jinan 250012, People's Republic of China
| | - Honglan Wang
- State Key Laboratory of Natural Medicines, Department of Pharmaceutics, China Pharmaceutical University, Nanjing 210009, People's Republic of China
| | - Lihui Dong
- State Key Laboratory of Natural Medicines, Department of Pharmaceutics, China Pharmaceutical University, Nanjing 210009, People's Republic of China
| | - Pan Zhang
- State Key Laboratory of Natural Medicines, Department of Pharmaceutics, China Pharmaceutical University, Nanjing 210009, People's Republic of China
| | - Yan Mu
- Qianfoshan Hospital, The First Hospital Affiliation with Shandong First Medical University, Jinan 250012, People's Republic of China
| | - Xueyan Cui
- Qianfoshan Hospital, The First Hospital Affiliation with Shandong First Medical University, Jinan 250012, People's Republic of China
| | - Jianping Zhou
- State Key Laboratory of Natural Medicines, Department of Pharmaceutics, China Pharmaceutical University, Nanjing 210009, People's Republic of China
| | - Meirong Huo
- State Key Laboratory of Natural Medicines, Department of Pharmaceutics, China Pharmaceutical University, Nanjing 210009, People's Republic of China
| | - Tingjie Yin
- State Key Laboratory of Natural Medicines, Department of Pharmaceutics, China Pharmaceutical University, Nanjing 210009, People's Republic of China
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19
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Kafshgari MH, Mazare A, Distaso M, Goldmann WH, Peukert W, Fabry B, Schmuki P. Intracellular Drug Delivery with Anodic Titanium Dioxide Nanotubes and Nanocylinders. ACS Appl Mater Interfaces 2019; 11:14980-14985. [PMID: 30916543 DOI: 10.1021/acsami.9b01211] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Titanium dioxide (TiO2) holds remarkable promises for developing current theranostic strategies. Anodic TiO2 nanostructures as a porous scaffold have offered a broad range of useful theranostic properties; however, previous attempts to generate single and uniform TiO2 one-dimensional nanocarriers from anodic nanotube arrays have resulted in a broad cluster size distribution of arbitrarily broken tubes that are unsuitable for therapeutic delivery systems due to poor biodistribution and the risk of introducing tissue inflammation. Here, we achieve well-separated, uniformly shaped anodic TiO2 nanotubes and nanocylinders through a time-varying electrochemical anodization protocol that leads to the generation of planar sheets of weakly connected nanotubes with a defined fracture point near the base. Subsequent sonication cleanly detaches the nanotubes from the base. Depending on the position of the fracture point, we can fabricate single-anodic nanocylinders that are open on both ends and nanotubes that are closed on one end. We proceed to show that anodic nanotubes and nanocylinders are nontoxic at therapeutic concentrations. When conjugated with the anticancer drug doxorubicin using a pH-responsive linker, they are readily internalized by cells and subsequently release their drug cargo into acidic intracellular compartments. Our results demonstrate that uniformly sized anodic TiO2 nanotubes and nanocylinders are suitable for subcellular delivery of therapeutic agents in cancer therapy.
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Affiliation(s)
| | | | | | - Wolfgang H Goldmann
- Department of Physics, Biophysics Group , University of Erlangen-Nuremberg , Erlangen 91052 , Germany
| | | | - Ben Fabry
- Department of Physics, Biophysics Group , University of Erlangen-Nuremberg , Erlangen 91052 , Germany
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20
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Yan J, Zhang H, Cheng F, He Y, Su T, Zhang X, Zhang M, Zhu Y, Li C, Cao J, He B. Highly stable RGD/disulfide bridge-bearing star-shaped biodegradable nanocarriers for enhancing drug-loading efficiency, rapid cellular uptake, and on-demand cargo release. Int J Nanomedicine 2018; 13:8247-8268. [PMID: 30584298 PMCID: PMC6289232 DOI: 10.2147/ijn.s179906] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Stability, enhanced drug-loading efficiency (DLE), and specific accumulation of therapeutics at tumor sites remain major challenges for successful cancer therapy. PURPOSE This study describes a newly developed intelligent nanosystem that integrates stealthy, active targeting, stimulus-responsiveness, and π-π interaction properties in a single carrier, based on the multifunctional star-shaped biodegradable polyester. PATIENTS AND METHODS This highly stable, smart nanocarrier with spherical structures and a low critical micelle concentration (CMC) can provide spacious harbor and strong π-π interaction and hydrophobic interactions for hydrophobic doxorubicin (DOX). Its structure and morphology were characterized by proton nuclear magnetic resonance (1H-NMR) spectra, Fourier transform infrared (FTIR) spectra, Gel permeation chromatography (GPC), dynamic light scattering (DLS), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). Antitumor effciency of polymeric micelles using CCK-8 assay, and the intracellular-activated delivery system was tracked by confocal laser scanning microscopy (CLSM) and flow cytometry. RESULTS The synthesized copolymer can be self-assembled into nanoparticles with size of 50 nm and critical micellar concentration of 2.10 µg/mL. The drug-loading content of nanoparticles can be enhanced to 17.35%. Additionally, the stimulus-responsive evaluation and drug release study showed that the nanocarrier can rapidly respond to the intracellular reductive environment and dissociate for drug release. An in vitro study demonstrated that the nanocarrier can ferry doxorubicin selectively into tumor tissue, rapidly enter cancer cells, and controllably release its payload in response to an intracellular reductive environment, resulting in excellent antitumor activity in vitro. CONCLUSION This study provides a facile and versatile approach for the design of multifunctional star-shaped biodegradable polyester nanovehicles for effective cancer treatment.
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Affiliation(s)
- Jianqin Yan
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China,
| | - Hai Zhang
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China,
| | - Furong Cheng
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China,
| | - Yanmei He
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China,
| | - Ting Su
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China,
| | - Xuequan Zhang
- College of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Man Zhang
- College of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Yutong Zhu
- College of Chemistry, Sichuan University, Chengdu 610065, China
| | - Congrui Li
- College of Chemistry, Sichuan University, Chengdu 610065, China
| | - Jun Cao
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China,
| | - Bin He
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China,
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21
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Ding N, Dou C, Wang Y, Liu F, Guan G, Huo D, Li Y, Yang J, Wei K, Yang M, Tan J, Zeng W, Zhu C. Antishear Stress Bionic Carbon Nanotube Mesh Coating with Intracellular Controlled Drug Delivery Constructing Small-Diameter Tissue-Engineered Vascular Grafts. Adv Healthc Mater 2018; 7:e1800026. [PMID: 29637716 DOI: 10.1002/adhm.201800026] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2018] [Revised: 03/07/2018] [Indexed: 12/24/2022]
Abstract
Small-diameter (<6 mm) tissue-engineered blood vessels (TEBVs) have a low patency rate due to chronic inflammation mediated intimal hyperplasia. Functional coating with drug release is a promising solution, but preventing the released drug from being rushed away by blood flow remains a great challenge. A single-walled carboxylic acid functionalized carbon nanotube (C-SWCNT) is used to build an irregular mesh for TEBV coating. However, an interaction between the released drug and the cells is still insufficient due to the blood flow. Thus, an intracellular drug delivery system mediated by macrophage cellular uptake is designed. Resveratrol (RSV) modified CNT is used for macrophage uptake. M1 macrophage uptakes CNT-RSV and then converts to the M2 phenotype upon intracellular RSV release. Prohealing M2 macrophage inhibits the chronic inflammation thus maintains the contractile phenotype of the vascular smooth muscle cell (VSMC), which reduces intimal hyperplasia. Additionally, RSV released from the mesh coating also directly protects the contractile VSMCs from being converted to a secretory phenotype. Through antishear stress coating and macrophage-based intracellular drug delivery, CNT-RSV TEBVs exhibit a long-term anti-intimal hyperplasia function. Animal transplantation studies show that the patency rate remains high until day 90 after grafting in rat carotid arteries.
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Affiliation(s)
- Ning Ding
- Department of Anatomy; Third Military Medical University; Gaotanyan Street No. 30 Chongqing 400038 China
| | - Ce Dou
- Department of Orthopedics; Southwest Hospital; Third Military Medical University; Chongqing 400038 China
| | - Yuxin Wang
- Department of Anatomy; Third Military Medical University; Gaotanyan Street No. 30 Chongqing 400038 China
| | - Feila Liu
- Department of Anatomy; Third Military Medical University; Gaotanyan Street No. 30 Chongqing 400038 China
| | - Ge Guan
- Department of Anatomy; Third Military Medical University; Gaotanyan Street No. 30 Chongqing 400038 China
| | - Da Huo
- Department of Anatomy; Third Military Medical University; Gaotanyan Street No. 30 Chongqing 400038 China
| | - Yanzhao Li
- Department of Anatomy; Third Military Medical University; Gaotanyan Street No. 30 Chongqing 400038 China
| | - Jingyuan Yang
- Department of Anatomy; Third Military Medical University; Gaotanyan Street No. 30 Chongqing 400038 China
| | - Keyu Wei
- Department of Anatomy; Third Military Medical University; Gaotanyan Street No. 30 Chongqing 400038 China
| | - Mingcan Yang
- Department of Anatomy; Third Military Medical University; Gaotanyan Street No. 30 Chongqing 400038 China
| | - Ju Tan
- Department of Anatomy; Third Military Medical University; Gaotanyan Street No. 30 Chongqing 400038 China
| | - Wen Zeng
- Department of Anatomy; Third Military Medical University; Gaotanyan Street No. 30 Chongqing 400038 China
| | - Chuhong Zhu
- Department of Anatomy; Third Military Medical University; Gaotanyan Street No. 30 Chongqing 400038 China
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22
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Singh L, Indermun S, Govender M, Kumar P, du Toit LC, Choonara YE, Pillay V. Drug Delivery Strategies for Antivirals against Hepatitis B Virus. Viruses 2018; 10:E267. [PMID: 29772748 PMCID: PMC5977260 DOI: 10.3390/v10050267] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2018] [Revised: 05/04/2018] [Accepted: 05/08/2018] [Indexed: 12/16/2022] Open
Abstract
Chronic hepatitis B virus (HBV) infection poses a significant health challenge due to associated morbidity and mortality from cirrhosis and hepatocellular cancer that eventually results in the breakdown of liver functionality. Nanotechnology has the potential to play a pivotal role in reducing viral load levels and drug-resistant HBV through drug targeting, thus reducing the rate of evolution of the disease. Apart from tissue targeting, intracellular delivery of a wide range of drugs is necessary to exert a therapeutic action in the affected organelles. This review encompasses the strategies and techniques that have been utilized to target the HBV-infected nuclei in liver hepatocytes, with a significant look at the new insights and most recent advances in drug carriers and their role in anti-HBV therapy.
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Affiliation(s)
- Latavia Singh
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, School of Therapeutic Sciences, Faculty of Health Sciences, University of the Witwatersrand, 7 York Road, Parktown, Johannesburg 2193, South Africa.
| | - Sunaina Indermun
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, School of Therapeutic Sciences, Faculty of Health Sciences, University of the Witwatersrand, 7 York Road, Parktown, Johannesburg 2193, South Africa.
| | - Mershen Govender
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, School of Therapeutic Sciences, Faculty of Health Sciences, University of the Witwatersrand, 7 York Road, Parktown, Johannesburg 2193, South Africa.
| | - Pradeep Kumar
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, School of Therapeutic Sciences, Faculty of Health Sciences, University of the Witwatersrand, 7 York Road, Parktown, Johannesburg 2193, South Africa.
| | - Lisa C du Toit
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, School of Therapeutic Sciences, Faculty of Health Sciences, University of the Witwatersrand, 7 York Road, Parktown, Johannesburg 2193, South Africa.
| | - Yahya E Choonara
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, School of Therapeutic Sciences, Faculty of Health Sciences, University of the Witwatersrand, 7 York Road, Parktown, Johannesburg 2193, South Africa.
| | - Viness Pillay
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, School of Therapeutic Sciences, Faculty of Health Sciences, University of the Witwatersrand, 7 York Road, Parktown, Johannesburg 2193, South Africa.
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Chen J, Ding J, Xu W, Sun T, Xiao H, Zhuang X, Chen X. Receptor and Microenvironment Dual-Recognizable Nanogel for Targeted Chemotherapy of Highly Metastatic Malignancy. Nano Lett 2017. [PMID: 28644032 DOI: 10.1021/acs.nanolett.7b02129] [Citation(s) in RCA: 83] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
Targeted delivery of chemotherapeutic drugs to the desired lesion sites is the main objective in malignancy treatment, especially in highly metastatic malignancies. However, extensive studies around the world on traditional targeting strategies of recognizing either overexpressed receptors or microenvironments in tumors show great limitations, owing to the off-target effect and tumor homogeneity. Integration of both receptor-mediated targeting (RMT) and environment-mediated targeting (EMT) enhances the tumor accumulation and subsequent cell uptake at the same time, which may avoid these limitations. Herein, a dual targeting nanogel of PMNG engineered with both phenylboronic acid (PBA) and morpholine (MP) was reported for not only RMT via specific recognition of sialyl (SA) epitopes but also EMT toward extracellular acidity. Further engineering the nanoparticles via loading doxorubicin (DOX) brought a novel dual targeting system, that is, PMNG/DOX. PMNG/DOX demonstrated a greater targeting effect to both primary and metastatic B16F10 melanoma than the single PBA-modified nanogel (PNG) with only RMT in vitro and in vivo. Moreover, PMNG/DOX was also proved to be highly potent on inhibiting primary tumor growth as well as tumor metastasis on B16F10 melanoma-grafted mouse model. The results demonstrated the dual targeting design as a translational approach for drug delivery to highly metastatic tumor.
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Affiliation(s)
- Jinjin Chen
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , Changchun 130022, People's Republic of China
- University of Chinese Academy of Sciences , Beijing 100039, People's Republic of China
| | - Jianxun Ding
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , Changchun 130022, People's Republic of China
| | - Weiguo Xu
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , Changchun 130022, People's Republic of China
| | - Tianmeng Sun
- The First Hospital and Institute of Immunology, Jilin University , Changchun 130061, People's Republic of China
| | - Haihua Xiao
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , Changchun 130022, People's Republic of China
| | - Xiuli Zhuang
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , Changchun 130022, People's Republic of China
| | - Xuesi Chen
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , Changchun 130022, People's Republic of China
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Kern HB, Srinivasan S, Convertine AJ, Hockenbery D, Press OW, Stayton PS. Enzyme-Cleavable Polymeric Micelles for the Intracellular Delivery of Proapoptotic Peptides. Mol Pharm 2017; 14:1450-1459. [PMID: 28277671 DOI: 10.1021/acs.molpharmaceut.6b01178] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Peptides derived from the third Bcl-2 homology domain (BH3) renormalize apoptotic signaling by antagonizing prosurvival Bcl-2 family members. These potential peptide drugs exhibit therapeutic activities but are limited by barriers including short circulation half-lives and poor penetration into cells. A diblock polymeric micelle carrier for the BIM BH3 peptide was recently described that demonstrated antitumor activity in a B-cell lymphoma xenograft model [Berguig et al., Mol. Ther. 2015, 23, 907-917]. However, the disulfide linkage used to conjugate the BIM peptide was shown to have nonoptimal blood stability. Here we describe a peptide macromonomer composed of BIM capped with a four amino acid cathepsin B substrate (FKFL) that possesses high blood stability and is cleaved to release the drug inside of target cells. Employing RAFT polymerization, the peptide macromonomer was directly integrated into a multifunctional diblock copolymer tailored for peptide delivery. The first polymer block was made as a macro-chain transfer agent (CTA) and composed of a pH-responsive endosomolytic formulation of N,N-diethylaminoethyl methacrylate (DEAEMA) and butyl methacrylate (BMA). The second polymer block was a copolymer of the peptide and polyethylene glycol methacrylate (PEGMA). PEGMA monomers of two sizes were investigated (300 Da and 950 Da). Protein gel analysis, high performance liquid chromatography, and coupled mass spectrometry (MS) showed that incubation with cathepsin B specifically cleaved the FKFL linker and released active BIM peptide with PEGMA300 but not with PEGMA950. MALDI-TOF MS showed that incubation of the peptide monomers alone in human serum resulted in partial cleavage at the FKFL linker after 12 h. However, formulation of the peptides into polymers protected against serum-mediated peptide degradation. Dynamic light scattering (DLS) demonstrated pH-dependent micelle disassembly (25 nm polymer micelles at pH 7.4 versus 6 nm unimers at pH 6.6), and a red blood cell lysis assay showed a corresponding increase in membrane destabilizing activity (<1% lysis at pH 7.4 versus 95% lysis at pH 6.6). The full carrier-drug system successfully induced apoptosis in SKOV3 ovarian cancer cells in a dose-dependent manner, in comparison to a control polymer containing a scrambled BIM peptide sequence. Mechanistic analysis verified target-dependent activation of caspase 3/7 activity (8.1-fold increase), and positive annexin V staining (72% increase). The increased blood stability of this enzyme-cleavable peptide polymer design, together with the direct polymerization approach that eliminated postsynthetic conjugation steps, suggests that this new carrier design could provide important benefits for intracellular peptide drug delivery.
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Affiliation(s)
- Hanna B Kern
- Department of Bioengineering and Molecular Engineering and Sciences Institute, University of Washington , Seattle, Washington 98195, United States
| | - Selvi Srinivasan
- Department of Bioengineering and Molecular Engineering and Sciences Institute, University of Washington , Seattle, Washington 98195, United States
| | - Anthony J Convertine
- Department of Bioengineering and Molecular Engineering and Sciences Institute, University of Washington , Seattle, Washington 98195, United States
| | - David Hockenbery
- Fred Hutchinson Cancer Research Center , Seattle, Washington 98108, United States
| | - Oliver W Press
- Fred Hutchinson Cancer Research Center , Seattle, Washington 98108, United States
| | - Patrick S Stayton
- Department of Bioengineering and Molecular Engineering and Sciences Institute, University of Washington , Seattle, Washington 98195, United States
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25
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Nguyen CTH, Webb RI, Lambert LK, Strounina E, Lee EC, Parat MO, McGuckin MA, Popat A, Cabot PJ, Ross BP. Bifunctional Succinylated ε-Polylysine-Coated Mesoporous Silica Nanoparticles for pH-Responsive and Intracellular Drug Delivery Targeting the Colon. ACS Appl Mater Interfaces 2017; 9:9470-9483. [PMID: 28252278 DOI: 10.1021/acsami.7b00411] [Citation(s) in RCA: 62] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Conventional oral drug formulations for colonic diseases require the administration of high doses of drug to achieve effective drug concentrations at the target site. However, this exposes patients to serious systemic toxicity in order to achieve efficacy. To overcome this problem, an oral drug delivery system was developed by loading a large amount (ca. 34% w/w) of prednisolone into 3-aminopropyl-functionalized mesoporous silica nanoparticles (MCM-NH2) and targeting prednisolone release to the colon by coating the nanoparticle with succinylated ε-polylysine (SPL). We demonstrate for the first time the pH-responsive ability of SPL as a "nanogate" to selectively release prednisolone in the pH conditions of the colon (pH 5.5-7.4) but not in the more acidic conditions of the stomach (pH 1.9) or small intestine (pH 5.0). In addition to targeting drug delivery to the colon, we explored whether the nanoparticles could deliver cargo intracellularly to immune cells (RAW 264.7 macrophages) and intestinal epithelial cells (LS 174T and Caco-2 adenocarcinoma cell lines). To trace uptake, MCM-NH2 were loaded with a cell membrane-impermeable dye, sulforhodamine B. The SPL-coated nanoparticles were able to deliver the dye intracellularly to RAW 264.7 macrophages and the intestinal epithelial cancer cells, which offers a highly promising and novel drug delivery system for diseases of the colon such as inflammatory bowel disease and colorectal cancer.
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Affiliation(s)
| | | | | | | | | | | | - Michael A McGuckin
- Translational Research Institute, Inflammatory Disease Biology and Therapeutics Group, Mater Research Institute - The University of Queensland , 37 Kent St., Woolloongabba, Queensland 4102, Australia
| | - Amirali Popat
- Translational Research Institute, Inflammatory Disease Biology and Therapeutics Group, Mater Research Institute - The University of Queensland , 37 Kent St., Woolloongabba, Queensland 4102, Australia
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Abstract
To develop a drug delivery system with long circulation and controlled drug release in cancer cells, polymeric micelles based on PEGylated chitosan-g-lipoic acid were prepared to use as a drug delivery platform. These micelles possessed good stability and were stable in physiological environment and high salt concentrations. The in vitro drug release results implied that the drug carrier could maintain their stability and minimize the payload leakage in systemic circulation, but release drugs faster under intracellular redox condition. Furthermore, the cellular uptake and therapeutic efficacy of the drug carrier were evaluated in vitro, and the results demonstrated that the drug carrier could escape from the endo/lysosomes of tumor cells effectively and present high cytotoxicity to tumor cells. Therefore, this drug delivery system has the potential to serve as a drug carrier for cancer therapy.
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Affiliation(s)
- Gongyan Liu
- 1 Key Laboratory of Leather Chemistry and Engineering of Ministry of Education, Sichuan University, Chengdu, China
| | - Kaijun Li
- 1 Key Laboratory of Leather Chemistry and Engineering of Ministry of Education, Sichuan University, Chengdu, China
| | - Haibo Wang
- 2 Textile Institute, College of Light Industry, Textile and Food Engineering, Sichuan University, Chengdu, China
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Yang X, He D, He X, Wang K, Tang J, Zou Z, He X, Xiong J, Li L, Shangguan J. Synthesis of Hollow Mesoporous Silica Nanorods with Controllable Aspect Ratios for Intracellular Triggered Drug Release in Cancer Cells. ACS Appl Mater Interfaces 2016; 8:20558-20569. [PMID: 27411575 DOI: 10.1021/acsami.6b05065] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Here, we have reported a straightforward and effective synthetic strategy for synthesis of aspect-ratios-controllable mesoporous silica nanorods with hollow structure (hMSR) and its application for transcription factor (TF)-responsive drug delivery intracellular. Templating by an acid-degradable nickel hydrazine nanorods (NHNT), we have first synthesized the hollow dense silica nanorods and then coated on a mesoporous silica layer. Subsequently, the dense silica layer was removed by the surface-protected etching method and the hollow structure of hMSR was finally formed. The aspect ratios of the hMSR can be conveniently controlled by regulating the aspect ratios of NHNT. Four different hMSR with aspect ratios of ca. 2.5, ca. 5.3, ca. 8.1, and ca. 9.0 has been obtained. It was demonstrated that the as-prepared hMSRs have good stability, high drug loading capacity, and fast cell uptake capability, which makes them to a potential nanocarrier for drug delivery. As the paradigm, hMSR with an aspect ratio of ca. 8.1 was then applied for TF-responsive intracellular anticancer drug controlled release by using a Ag(+)-stabilized molecular switch of triplex DNA (TDNA) as capping agents and probes for TFs recognition. In the presence of TF, the pores of hMSR can be unlocked by the TFs induced disassembly of TDNA, leading to the leakage of DOX. The research in vitro displayed that this system has a TFs-triggered DOX release, and the cytotoxicity in L02 normal cells was lower than that of HeLa cells. We hope that this developed hMSR-based system will promote the development of cancer therapy in related fields.
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Affiliation(s)
- Xue Yang
- College of Biology, State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Key Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan Province, Hunan University , Changsha 410082, China
| | - Dinggeng He
- College of Biology, State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Key Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan Province, Hunan University , Changsha 410082, China
| | - Xiaoxiao He
- College of Biology, State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Key Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan Province, Hunan University , Changsha 410082, China
| | - Kemin Wang
- College of Biology, State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Key Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan Province, Hunan University , Changsha 410082, China
| | - Jinlu Tang
- College of Biology, State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Key Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan Province, Hunan University , Changsha 410082, China
| | - Zhen Zou
- College of Biology, State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Key Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan Province, Hunan University , Changsha 410082, China
| | - Xing He
- College of Biology, State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Key Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan Province, Hunan University , Changsha 410082, China
| | - Jun Xiong
- College of Biology, State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Key Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan Province, Hunan University , Changsha 410082, China
| | - Liling Li
- College of Biology, State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Key Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan Province, Hunan University , Changsha 410082, China
| | - Jingfang Shangguan
- College of Biology, State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Key Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan Province, Hunan University , Changsha 410082, China
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28
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Zhang Y, Ding J, Li M, Chen X, Xiao C, Zhuang X, Huang Y, Chen X. One-Step "Click Chemistry"-Synthesized Cross-Linked Prodrug Nanogel for Highly Selective Intracellular Drug Delivery and Upregulated Antitumor Efficacy. ACS Appl Mater Interfaces 2016; 8:10673-10682. [PMID: 27077549 DOI: 10.1021/acsami.6b00426] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Polymeric prodrugs formed by the conjugation of drugs onto polymers have shown great promise in cancer therapy because of the enhancement of water solubility, elimination of premature drug release, and the improvement of pharmacokinetics. To integrate the two advantages of upregulated stability during circulation and selective release of drug in cancer cells, a pH and reduction dual-sensitive prodrug nanogel (CLP) was synthesized via a simple one step "click chemistry". CLP was spherically shaped with a uniform diameter of 60.6 ± 13.7 nm and exhibited great stability in size against large volume dilution, high salt concentration, and long-time incubation in phosphate-buffered saline. Owing to the presence of hydrazone-bonded doxorubicin (DOX) and disulfide cross-linker, CLP released minimal amount (7.8%) of drug under normal physiological pH (i.e., 7.4) condition. But it released 85.5% of the loaded DOX at endosomal pH (i.e., 5.5) plus the presence of 5.0 mM GSH in 120 h. CLP could be effectively internalized by tumor cells and subsequently release DOX in the intracellular environment, resulting in effective proliferation inhibition of HeLa and MCF-7 cells. Furthermore, compared with free DOX and non-cross-linked prodrug micelle (NCLP), CLP accumulated more in tumor site but less in the normal organs, so that CLP performed the enhanced antitumor efficiency and reduced side-toxicities toward the MCF-7 human breast cancer xenograft nude mouse model. With convenient fabrication, favorable stability, controlled release properties, optimized biodistribution, and enhanced suppression of tumor growth, CLP held great potential for optimal antitumor therapy.
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Affiliation(s)
- Yu Zhang
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , 5625 Renmin Street, Changchun 130022, P. R. China
| | - Jianxun Ding
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , 5625 Renmin Street, Changchun 130022, P. R. China
| | - Mingqiang Li
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , 5625 Renmin Street, Changchun 130022, P. R. China
| | - Xin Chen
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , 5625 Renmin Street, Changchun 130022, P. R. China
- University of Chinese Academy of Sciences , 19A Yuquan Road, Beijing 100049, P. R. China
| | - Chunsheng Xiao
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , 5625 Renmin Street, Changchun 130022, P. R. China
| | - Xiuli Zhuang
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , 5625 Renmin Street, Changchun 130022, P. R. China
| | - Yubin Huang
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , 5625 Renmin Street, Changchun 130022, P. R. China
| | - Xuesi Chen
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , 5625 Renmin Street, Changchun 130022, P. R. China
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Razzazan A, Atyabi F, Kazemi B, Dinarvand R. In vivo drug delivery of gemcitabine with PEGylated single-walled carbon nanotubes. Mater Sci Eng C Mater Biol Appl 2016; 62:614-25. [PMID: 26952465 DOI: 10.1016/j.msec.2016.01.076] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2015] [Revised: 01/04/2016] [Accepted: 01/27/2016] [Indexed: 12/18/2022]
Abstract
Gemcitabine (GEM) is an anticancer agent widely used in non-small cell lung and pancreatic cancers. The clinical use of GEM has been limited by its rapid metabolism and short plasma half-life. These restrictions lead to frequent administration of high drug doses which can cause severe side effects. Therefore, new delivery strategies are needed aiming toward improved therapeutic effects. Single-walled carbon nanotubes (SWCNTs) are emerging as promising carriers for drug delivery due to their unique properties including high drug loading capacities, notable cell membrane penetrability and prolonged circulation times. In this work, pristine SWCNTs were functionalized through carboxylation, acylation, amination, PEGylation and finally GEM conjugation. The prepared SWCNT-GEM and SWCNT-PEG-GEM conjugates were characterized by FTIR, NMR, DSC and TEM to confirm the successful functionalization. The amount of GEM bound to the conjugates was 43.14% (w/w) for the SWCNT-GEM and 37.32% for the SWCNT-PEG-GEM, indicating high loading capacity. MTT assay on the human lung carcinoma cell line (A549) and the human pancreatic carcinoma cell line (MIA PaCa-2) demonstrated that the SWCNT-GEM was more cytotoxic than SWCNT-PEG-GEM and GEM. The SWCNT-PEG-GEM conjugates afford higher efficacy in suppressing tumor growth than SWCNT-GEM and GEM in B6 nude mice. The results demonstrate that the new formulation of GEM is useful strategy for improving the antitumor efficacy of GEM.
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Affiliation(s)
- Ali Razzazan
- Department of Medical Physics and Biomedical Engineering, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Fatemeh Atyabi
- Department of Pharmaceutical Nanotechnology, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran; Nanotechnology Research Center, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran.
| | - Bahram Kazemi
- Department of Biotechnology, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Rassoul Dinarvand
- Department of Pharmaceutical Nanotechnology, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran; Nanotechnology Research Center, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
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30
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Abstract
Design of materials to aid intracellular delivery of agents can greatly improve medical treatments. While DNA is a molecule difficult to introduce into cells, DNA can be engineered into devices capable of intracellular delivery. Yet, transport mediated by DNA-devices void of other structural material, with size greater than that associated with non-specific penetration, and with targeting capacity enough to overcome non-specific pathways has not been achived. This study demonstrates that this is possible. Submicrometer (200-nm) dendrimers built of DNA (nucleodendrimers (NDs)) are coupled to antibodies against selected cell-surface receptors and compared to polymer nanoparticles (NPs). NDs and NPs bind specifically to cells expressing these targets and efficiently enter cells via the pathway associated with the selected receptor. While NPs traffic to perinuclear endo-lysosomes, NDs remain scattered throughout the cell, suggesting endosomal escape. This is confirmed in vitro, where NDs disrupt membranous vesicles at endosomal-like pH and in cell culture, where they: provide endosomal escape of model drugs, sugars, proteins, and nucleic acids; allow access to other intracellular compartments; result in measurable effects of cargoes; and do not cause cytotoxicity. Therefore, these DNA-nanodevices can be used to selectively overcome intracellular barriers, underscoring the growing range of applications of DNA materials.
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Xu X, Li Y, Li H, Liu R, Sheng M, He B, Gu Z. Smart nanovehicles based on pH-triggered disassembly of supramolecular peptide-amphiphiles for efficient intracellular drug delivery. Small 2014; 10:1133-1140. [PMID: 24155260 DOI: 10.1002/smll.201301885] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2013] [Revised: 08/02/2013] [Indexed: 06/02/2023]
Abstract
A novel type of nanovehicle (NV) based on stimuli-responsive supramolecular peptide-amphiphiles (SPAs, dendritic poly (L-lysine) non-covalently linked poly (L-leucine)) is developed for intracellular drug delivery. To determine the pH-dependent mechanism, the supramolecular peptide-amphiphile system (SPAS) is investigated at different pH conditions using a variety of physical and chemical approaches. The pH-triggered disassembly of SPAS can be attributed to the disappearance of non-covalent interactions within SPAs around the isoelectric point of poly (L-leucine). SPAS is found to encapsulate guest molecules at pH 7.4 but release them at pH 6.2. In this way, SPAS is able to act as a smart NV to deliver its target to tumor cells using intracellular pH as a trigger. The DOX-loaded NVs are approximately 150 nm in size. In vitro release profiles and confocal laser scanning microscopy (CLSM) images of HepG2 cells confirm that lower pH conditions can trigger the disassembly of NVs and so achieve pH-dependent intracellular DOX delivery. In vitro cytotoxicity of the DOX-loaded NVs to HepG2 cells demonstrate that the smart NVs enhance the efficacy of hydrophobic DOX. Fluorescence-activated cell sorting (FACS) and CLSM results show that the NVs can enhance the endocytosis of DOX into HepG2 cells considerably and deliver DOX to the nuclei.
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Affiliation(s)
- Xianghui Xu
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, Sichuan, 610064, PR China
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32
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Sengupta A, Kelly SC, Dwivedi N, Thadhani N, Prausnitz MR. Efficient intracellular delivery of molecules with high cell viability using nanosecond-pulsed laser-activated carbon nanoparticles. ACS Nano 2014; 8:2889-99. [PMID: 24547946 PMCID: PMC4004329 DOI: 10.1021/nn500100x] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2014] [Accepted: 02/10/2014] [Indexed: 05/21/2023]
Abstract
Conventional physical and chemical methods that efficiently deliver molecules into cells are often associated with low cell viability. In this study, we evaluated the cellular effects of carbon nanoparticles believed to emit photoacoustic waves due to nanosecond-pulse laser activation to test the hypothesis that this method could achieve efficient intracellular delivery while maintaining high cell viability. Suspensions of DU145 human prostate carcinoma cells, carbon black (CB) nanoparticles, and calcein were exposed to 5-9 ns long laser pulses of near-infrared (1064 nm wavelength) light and then analyzed by flow cytometry for intracellular uptake of calcein and cell viability by propidium iodide staining. We found that intracellular uptake increased and in some cases saturated at high levels with only small losses in cell viability as a result of increasing laser fluence, laser exposure time, and as a unifying parameter, the total laser energy. Changing interpulse spacing between 0.1 and 10 s intervals showed no significant change in bioeffects, suggesting that the effects of each pulse were independent when spaced by at least 0.1 s intervals. Pretreatment of CB nanoparticles to intense laser exposure followed by mixing with cells also had no significant effect on uptake or viability. Similar uptake and viability were seen when CB nanoparticles were substituted with India ink, when DU145 cells were substituted with H9c2 rat cardiomyoblast cells, and when calcein was substituted with FITC-dextran. The best laser exposure conditions tested led to 88% of cells with intracellular uptake and close to 100% viability, indicating that nanosecond-pulse laser-activated carbon nanoparticles can achieve efficient intracellular delivery while maintaining high cell viability.
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Affiliation(s)
- Aritra Sengupta
- School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Sean C. Kelly
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Nishant Dwivedi
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
- School of Medicine, Boston University, Boston, Massachusetts 02118, United States
| | - Naresh Thadhani
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Mark R. Prausnitz
- School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
- Address correspondence to
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Ansar M, Serrano D, Papademetriou I, Bhowmick TK, Muro S. Biological functionalization of drug delivery carriers to bypass size restrictions of receptor-mediated endocytosis independently from receptor targeting. ACS Nano 2013; 7:10597-10611. [PMID: 24237309 PMCID: PMC3901850 DOI: 10.1021/nn404719c] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Targeting of drug carriers to cell-surface receptors involved in endocytosis is commonly used for intracellular drug delivery. However, most endocytic receptors mediate uptake via clathrin or caveolar pathways associated with ≤200-nm vesicles, restricting carrier design. We recently showed that endocytosis mediated by intercellular adhesion molecule 1 (ICAM-1), which differs from clathrin- and caveolae-mediated pathways, allows uptake of nano- and microcarriers in cell culture and in vivo due to recruitment of cellular sphingomyelinases to the plasmalemma. This leads to ceramide generation at carrier binding sites and formation of actin stress-fibers, enabling engulfment and uptake of a wide size-range of carriers. Here we adapted this paradigm to enhance uptake of drug carriers targeted to receptors associated with size-restricted pathways. We coated sphingomyelinase onto model (polystyrene) submicro- and microcarriers targeted to clathrin-associated mannose-6-phosphate receptor. In endothelial cells, this provided ceramide enrichment at the cell surface and actin stress-fiber formation, modifying the uptake pathway and enhancing carrier endocytosis without affecting targeting, endosomal transport, cell-associated degradation, or cell viability. This improvement depended on the carrier size and enzyme dose, and similar results were observed for other receptors (transferrin receptor) and cell types (epithelial cells). This phenomenon also enhanced tissue accumulation of carriers after intravenous injection in mice. Hence, it is possible to maintain targeting toward a selected receptor while bypassing natural size restrictions of its associated endocytic route by functionalization of drug carriers with biological elements mimicking the ICAM-1 pathway. This strategy holds considerable promise to enhance flexibility of design of targeted drug delivery systems.
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Affiliation(s)
- Maria Ansar
- Institute for Bioscience and Biotechnology Research, University of Maryland, College Park, MD
| | - Daniel Serrano
- Department of Cell Biology & Molecular Genetics and Biological Sciences Graduate Program, University of Maryland, College Park, MD
| | - Iason Papademetriou
- Fischell Department of Bioengineering, University of Maryland, College Park, MD
| | - Tridib Kumar Bhowmick
- Institute for Bioscience and Biotechnology Research, University of Maryland, College Park, MD
| | - Silvia Muro
- Institute for Bioscience and Biotechnology Research, University of Maryland, College Park, MD
- Fischell Department of Bioengineering, University of Maryland, College Park, MD
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Abstract
Drug discovery and drug delivery are two main aspects for treatment of a variety of disorders. However, the real bottleneck associated with systemic drug administration is the lack of target-specific affinity toward a pathological site, resulting in systemic toxicity and innumerable other side effects as well as higher dosage requirement for efficacy. An attractive strategy to increase the therapeutic index of a drug is to specifically deliver the therapeutic molecule in its active form, not only into target tissue, nor even to target cells, but more importantly, into the targeted organelle, ie, to its intracellular therapeutic active site. This would ensure improved efficacy and minimize toxicity. Cancer chemotherapy today faces the major challenge of delivering chemotherapeutic drugs exclusively to tumor cells, while sparing normal proliferating cells. Nanoparticles play a crucial role by acting as a vehicle for delivery of drugs to target sites inside tumor cells. In this review, we spotlight active and passive targeting, followed by discussion of the importance of targeting to specific cell organelles and the potential role of cell-penetrating peptides. Finally, the discussion will address the strategies for drug/DNA targeting to lysosomes, mitochondria, nuclei and Golgi/endoplasmic reticulum.
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Affiliation(s)
- Niraj M Sakhrani
- Department of Cell and Molecular Biology, BV Patel Pharmaceutical Education and Research Development (PERD) Centre, Gujarat, India
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35
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Tzeng SY, Green JJ. Subtle changes to polymer structure and degradation mechanism enable highly effective nanoparticles for siRNA and DNA delivery to human brain cancer. Adv Healthc Mater 2013; 2:468-80. [PMID: 23184674 PMCID: PMC3838886 DOI: 10.1002/adhm.201200257] [Citation(s) in RCA: 76] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2012] [Revised: 08/23/2012] [Indexed: 12/19/2022]
Abstract
Polymeric materials can be used to deliver nucleic acids such as DNA plasmids and siRNA, but often have low efficacy in human cells. To improve gene delivery, an array of over 70 hydrolytically degradable and bioreducible poly(beta-amino ester)s are synthesized and the properties of over 200 nanoparticle formulations fabricated from these biomaterials are evaluated. The effect of different polymer structures on the delivery of nucleic acids of different structures and sizes, including siRNA, linear DNA, and circular DNAs (1.8-26 kb), is evaluated. Significantly, leading hydrolytically degradable polymeric nanoparticles deliver DNA to 90 ± 2% of primary human glioblastoma cells with <10% nonspecific cytotoxicity, better than leading commercially available reagents (p < 0.01). Bioreducible polymeric nanoparticles optimized for siRNA delivery cause up to 85 ± 0.6% knockdown in these cells as well while maintaining high viability. From a single dose, knockdown is higher than for Lipofectamine 2000 (p < 0.01) and persisted for one month. Polymer molecular weight is a driving factor of transfection efficacy for some polymer structures (correlation of r(2) = 0.63), but has no influence on transfection for other structures (r(2) = 0.01). Polymers with a reducible cystamine functional group dramatically improve siRNA delivery by facilitating quick release while generally decreasing DNA delivery compared with non-reducible counterparts (p < 0.01). Other material properties facilitate DNA delivery compared with siRNA delivery or increase delivery of both DNA and siRNA.
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Affiliation(s)
- Stephany Y. Tzeng
- Johns Hopkins University School of Medicine, Department of Biomedical Engineering, the Wilmer Eye Institute, the Institute for Nanobiotechnology, and the Translational Tissue Engineering Center, 400 N. Broadway, Smith 5017, Baltimore, MD, USA 21231
| | - Jordan J. Green
- Johns Hopkins University School of Medicine, Department of Biomedical Engineering, the Wilmer Eye Institute, the Institute for Nanobiotechnology, and the Translational Tissue Engineering Center, 400 N. Broadway, Smith 5017, Baltimore, MD, USA 21231
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Luo Z, Cai K, Hu Y, Li J, Ding X, Zhang B, Xu D, Yang W, Liu P. Redox-responsive molecular nanoreservoirs for controlled intracellular anticancer drug delivery based on magnetic nanoparticles. Adv Mater 2012; 24:431-435. [PMID: 22180323 DOI: 10.1002/adma.201103458] [Citation(s) in RCA: 120] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2011] [Revised: 09/28/2011] [Indexed: 05/31/2023]
Abstract
A novel redox responsive controlled drug release system based on magnetic nanoparticles for efficient intracellular anticancer drug delivery is fabricated. Disulfide bonds are employed as intermediate linkers to immobilize PEI/β-CD molecules as nanoreservoirs for drug loading onto magnetic nanoparticles. The endocytotic pathway and endosomal escape of the smart controlled drug release system is proposed.
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Affiliation(s)
- Zhong Luo
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, 400044, P.R. China
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