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Abdel-Bar HM, Tulbah AS, Darwish HW, Salama R, Naguib IA, Yassin HA, Abo El-Enin HA. Quetiapine Albumin Nanoparticles as an Efficacious Platform for Brain Deposition and Potentially Improved Antipsychotic Activity. Pharmaceutics 2023; 15:1785. [PMID: 37513972 PMCID: PMC10385742 DOI: 10.3390/pharmaceutics15071785] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Revised: 06/10/2023] [Accepted: 06/19/2023] [Indexed: 07/30/2023] Open
Abstract
Quetiapine (QP) is a second-generation short-acting antipsychotic drug extensively metabolized in the liver, producing pharmacologically inactive metabolites and leading to diminished bioavailability. Therefore, this study aimed to develop an intravenous QP albumin nanoparticles (NPs) system for improving QP antipsychotic activity and brain targeting. QP-loaded albumin NPs were prepared by the desolvation method. The fabricated NPs were characterized in terms of particle size, zeta potential, entrapment efficiency (EE%), and in vitro drug release. In vivo pharmacokinetics and biodistribution in rats were studied. In addition, the antipsychotic activity of the optimized platform was also investigated. Human serum albumin (HSA) concentration, pH, and stirring time were modulated to optimize QP albumin NPs with a particle size of 103.54 ± 2.36 nm and a QP EE% of 96.32 ± 3.98%. In addition, the intravenous administration of QP albumin NPs facilitated QP brain targeting with a 4.9-fold increase in targeting efficiency compared to the oral QP solution. The QP albumin NPs improved the QP antipsychotic activity, indicated by suppressing rats' hypermobility and reducing the QP's extrapyramidal side effects. The obtained results proposed that intravenous QP- NPs could improve QP brain targeting and its antipsychotic efficiency.
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Affiliation(s)
- Hend Mohamed Abdel-Bar
- Department of Pharmaceutics, Faculty of Pharmacy, University of Sadat City, Sadat City 32897, Egypt
- Institute of Pharmaceutical Science, Faculty of Life Sciences & Medicine, King's College London, London SE1 9NH, UK
| | - Alaa S Tulbah
- Department of Pharmaceutics, College of Pharmacy, Umm Al-Qura University, Makkah 21955, Saudi Arabia
| | - Hany W Darwish
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Rania Salama
- Macquarie Medical School, Faculty of Medicine, Health and Human Sciences, Macquarie University, Sydney, NSW 2109, Australia
- Woolcock Institute of Medical Research, Glebe, NSW 2037, Australia
| | - Ibrahim A Naguib
- Department of Pharmaceutical Chemistry, College of Pharmacy, Taif University, Taif 21944, Saudi Arabia
| | - Heba A Yassin
- Department of Pharmaceutics, Faculty of Pharmacy, Badr University in Cairo (BUC), Badr City 11829, Egypt
| | - Hadel A Abo El-Enin
- Department of Pharmaceutics, National Organization of Drug Control and Research (NODCAR) (Previously), Egyptian Drug Authority (Currently), Giza 12511, Egypt
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Pacheco C, Baião A, Ding T, Cui W, Sarmento B. Recent advances in long-acting drug delivery systems for anticancer drug. Adv Drug Deliv Rev 2023; 194:114724. [PMID: 36746307 DOI: 10.1016/j.addr.2023.114724] [Citation(s) in RCA: 29] [Impact Index Per Article: 29.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2022] [Revised: 01/20/2023] [Accepted: 01/31/2023] [Indexed: 02/05/2023]
Abstract
The use of systemic anticancer chemotherapy is intrinsically limited by its toxicity. Whether dealing with small molecules or biopharmaceuticals, after systemic administration, small doses fail to reach effective intratumoral concentrations, while high doses with significant tumor inhibition effects may also drive the death of healthy cells, endangering the patients. Therefore, strategies based on drug delivery systems (DDSs) for avoiding the systemic toxicity have been designed. Due to their ability to protect drugs from early elimination and control drug release, DDSs can foster tumor exposure to anticancer therapeutics by extending their circulation time or steadily releasing drugs into the tumor sites. However, approval of tailored DDSs systems for clinical use is minimal as the safety and the in vivo activity still need to be ameliorated by manipulating their physicochemical characteristics. During the last few years, several strategies have been described to improve their safety, stability, and fine-tune pharmaceuticals release kinetics. Herein, we reviewed the main DDSs, namely polymeric conjugates, nano or microparticles, hydrogels, and microneedles, explored for long-acting anticancer treatments, highlighting recently proposed modifications and their potential advantages for different anticancer therapies. Additionally, important limitations of long-acting anticancer therapies and future technology directions were also covered.
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Affiliation(s)
- Catarina Pacheco
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Alfredo Allen 208, 4200-135 Porto, Portugal; INEB - Instituto de Engenharia Biomédica, Universidade do Porto, Rua Alfredo Allen 208, 4200-135 Porto, Portugal; IUCS - Instituto Universitário de Ciências da Saúde, CESPU, Rua Central de Gandra 1317, 4585-116 Gandra, Portugal
| | - Ana Baião
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Alfredo Allen 208, 4200-135 Porto, Portugal; INEB - Instituto de Engenharia Biomédica, Universidade do Porto, Rua Alfredo Allen 208, 4200-135 Porto, Portugal; ICBAS - Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Rua de Jorge Viterbo Ferreira 228, 4050-313 Porto, Portugal
| | - Tao Ding
- Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai 200025, China
| | - Wenguo Cui
- Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai 200025, China
| | - Bruno Sarmento
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Alfredo Allen 208, 4200-135 Porto, Portugal; INEB - Instituto de Engenharia Biomédica, Universidade do Porto, Rua Alfredo Allen 208, 4200-135 Porto, Portugal; IUCS - Instituto Universitário de Ciências da Saúde, CESPU, Rua Central de Gandra 1317, 4585-116 Gandra, Portugal; Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai 200025, China.
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Zhang D, Tang Q, Chen J, Wei Y, Chen J. Novel Development of Nanoparticles-A Promising Direction for Precise Tumor Management. Pharmaceutics 2022; 15:pharmaceutics15010024. [PMID: 36678653 PMCID: PMC9862928 DOI: 10.3390/pharmaceutics15010024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Revised: 12/04/2022] [Accepted: 12/09/2022] [Indexed: 12/24/2022] Open
Abstract
Although the clinical application of nanoparticles is still limited by biological barriers and distribution, with the deepening of our understanding of nanoparticles over the past decades, people are gradually breaking through the previous limitations in the diagnosis and treatment of tumors, providing novel strategies for clinical decision makers. The transition of nanoparticles from passive targeting to active tumor-targeting by abundant surface-modified nanoparticles is also a development process of precision cancer treatment. Different particles can be used as targeted delivery tools of antitumor drugs. The mechanism of gold nanoparticles inducing apoptosis and cycle arrest of tumor cells has been discovered. Moreover, the unique photothermal effect of gold nanoparticles may be widely used in tumor therapy in the future, with less side effects on surrounding tissues. Lipid-based nanoparticles are expected to overcome the blood-brain barrier due to their special characteristics, while polymer-based nanoparticles show better biocompatibility and lower toxicity. In this paper, we discuss the development of nanoparticles in tumor therapy and the challenges that need to be addressed.
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Affiliation(s)
- Dengke Zhang
- Department of Surgery, The Eighth Affiliated Hospital, Sun Yat-sen University, Guangzhou 510275, China
| | - Qingqing Tang
- Department of Surgery, The Eighth Affiliated Hospital, Sun Yat-sen University, Guangzhou 510275, China
| | - Juan Chen
- Department of Medicine & Rehabilitation, Tung Wah Eastern Hospital, Hong Kong, China
| | - Yanghui Wei
- Department of Surgery, The Eighth Affiliated Hospital, Sun Yat-sen University, Guangzhou 510275, China
- Correspondence: (Y.W.); (J.C.)
| | - Jiawei Chen
- Department of Surgery, The Eighth Affiliated Hospital, Sun Yat-sen University, Guangzhou 510275, China
- Correspondence: (Y.W.); (J.C.)
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4
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Extracellular vesicles as an emerging drug delivery system for cancer treatment: Current strategies and recent advances. Biomed Pharmacother 2022; 153:113480. [DOI: 10.1016/j.biopha.2022.113480] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Revised: 07/22/2022] [Accepted: 07/26/2022] [Indexed: 11/19/2022] Open
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Sun X, Yu K, Zhou Y, Dong S, Hu W, Sun Y, Li Y, Xie J, Lee RJ, Sun F, Ma Y, Wang S, Kim BYS, Wang Y, Yang Z, Jiang W, Li Y, Teng L. Self-Assembled pH-Sensitive Polymeric Nanoparticles for the Inflammation-Targeted Delivery of Cu/Zn-Superoxide Dismutase. ACS APPLIED MATERIALS & INTERFACES 2021; 13:18152-18164. [PMID: 33764751 DOI: 10.1021/acsami.1c03589] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The use of superoxide dismutase (SOD) is currently limited by its short half-life, rapid plasma clearance rate, and instability. We synthesized a small library of biofriendly amphiphilic polymers that comprise methoxy poly(ethylene glycol)-poly(cyclohexane-1,4-diyl acetone dimethyleneketal) (mPEG-PCADK) and mPEG-poly((cyclohexane86.7%, 1,5-pentanediol13.3%)-1,4-diyl acetone dimethylene ketal) (PK3) for the targeted delivery of SOD. The novel polymers could self-assemble into micellar nanoparticles with favorable hydrolysis kinetics, biocompatibility, long circulation time, and inflammation-targeting effects. These materials generated a better pH-response curve and exhibited better hydrolytic kinetic behavior than PCADK and PK3. The polymers showed good biocompatibility with protein drugs and did not induce an acidic microenvironment during degradation in contrast to materials such as PEG-block-poly(lactic-co-glycolic acid) (PLGA) and PLGA. The SOD that contained reverse micelles based on mPEG2000-PCADK exhibited good circulation and inflammation-targeting properties. Pharmacodynamic results indicated exceptional antioxidant and anti-inflammatory activities in a rat adjuvant-induced arthritis model and a rat peritonitis model. These results suggest that these copolymers are ideal protein carriers for targeting inflammation treatment.
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Affiliation(s)
- Xiangshi Sun
- School of Life Sciences, Jilin University, No.2699, Qianjin Street, Changchun, Jilin 130012, China
| | - Kongtong Yu
- School of Life Sciences, Jilin University, No.2699, Qianjin Street, Changchun, Jilin 130012, China
- Zhejiang Sundoc Pharmaceutical Science and Tech Co., Ltd., Hangzhou, Zhejiang 310000, China
| | - Yulin Zhou
- School of Life Sciences, Jilin University, No.2699, Qianjin Street, Changchun, Jilin 130012, China
| | - Shiyan Dong
- School of Life Sciences, Jilin University, No.2699, Qianjin Street, Changchun, Jilin 130012, China
- Department of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, Texas 75390, United States
| | - Wenji Hu
- School of Life Sciences, Jilin University, No.2699, Qianjin Street, Changchun, Jilin 130012, China
| | - Yating Sun
- School of Life Sciences, Jilin University, No.2699, Qianjin Street, Changchun, Jilin 130012, China
| | - Yuhuan Li
- School of Life Sciences, Jilin University, No.2699, Qianjin Street, Changchun, Jilin 130012, China
| | - Jing Xie
- School of Life Sciences, Jilin University, No.2699, Qianjin Street, Changchun, Jilin 130012, China
| | - Robert J Lee
- School of Life Sciences, Jilin University, No.2699, Qianjin Street, Changchun, Jilin 130012, China
- College of Pharmacy, The Ohio State University, Columbus, Ohio 43210, United States
| | - Fengying Sun
- School of Life Sciences, Jilin University, No.2699, Qianjin Street, Changchun, Jilin 130012, China
| | - Yifan Ma
- Department of Chemical and Biomolecular Engineering, The Ohio State University, Columbus, Ohio 43210, United States
| | - Shengnian Wang
- College of Engineering and Science, Louisiana Tech University, Ruston, Louisiana 71272, United States
| | - Betty Y S Kim
- Department of Neurosurgery, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030, United States
| | - Yifan Wang
- Department of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, Texas 75390, United States
| | - Zhaogang Yang
- Department of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, Texas 75390, United States
| | - Wen Jiang
- Department of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, Texas 75390, United States
| | - Youxin Li
- School of Life Sciences, Jilin University, No.2699, Qianjin Street, Changchun, Jilin 130012, China
| | - Lesheng Teng
- School of Life Sciences, Jilin University, No.2699, Qianjin Street, Changchun, Jilin 130012, China
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Jayasinghe MK, Tan M, Peng B, Yang Y, Sethi G, Pirisinu M, Le MTN. New approaches in extracellular vesicle engineering for improving the efficacy of anti-cancer therapies. Semin Cancer Biol 2021; 74:62-78. [PMID: 33609665 DOI: 10.1016/j.semcancer.2021.02.010] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Revised: 01/11/2021] [Accepted: 02/11/2021] [Indexed: 02/07/2023]
Abstract
Cancer is a disease that evolves continuously with unpredictable outcomes. Although conventional chemotherapy can display significant antitumor effects, the lack of specificity and poor bioavailability remain major concerns in cancer therapy. Moreover, with the advent of novel anti-cancer gene therapies, there is an urgent need for drug delivery vectors capable of bypassing cellular barriers and efficiently transferring therapeutic cargo to recipient cells. A number of drug delivery systems have been proposed to overcome these limitations, but their successful clinical translation has been hampered by the onset of unexpected side effects and associated toxicities. The application of extracellular vesicles (EVs), a class of naturally released, cell-derived particles, as drug delivery vectors presents a breakthrough in nanomedicine, taking into account their biocompatibility and natural role in intercellular communication. Combining the advantageous intrinsic properties of EVs with surface functionalization and the encapsulation of drugs allows for a new class of engineered EVs that serve as effective therapeutic carriers. Here, we describe the various successful approaches involving the application of engineered EVs as bio-derived drug delivery vectors in cancer therapy. The latest and most effective strategies of engineering EVs to improve drug loading, stealth properties and tumour targeting capabilities of EVs are debated. Finally, current obstacles and future perspectives of smart engineered EVs are discussed.
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Affiliation(s)
- Migara Kavishka Jayasinghe
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore; Institute for Digital Medicine, Immunology Programme and Cancer Programme, Yong Loo Lin School of Medicine, National University of Singapore, Singapore; N.1 Institute for Health, National University of Singapore, Singapore; Department of Biomedical Sciences, College of Veterinary Medicine and Life Sciences, City University of Hong Kong, Hong Kong
| | - Melissa Tan
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore; Institute for Digital Medicine, Immunology Programme and Cancer Programme, Yong Loo Lin School of Medicine, National University of Singapore, Singapore; N.1 Institute for Health, National University of Singapore, Singapore
| | - Boya Peng
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore; Institute for Digital Medicine, Immunology Programme and Cancer Programme, Yong Loo Lin School of Medicine, National University of Singapore, Singapore; N.1 Institute for Health, National University of Singapore, Singapore
| | - Yuqi Yang
- Department of Biomedical Sciences, College of Veterinary Medicine and Life Sciences, City University of Hong Kong, Hong Kong
| | - Gautam Sethi
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Marco Pirisinu
- Department of Biomedical Sciences, College of Veterinary Medicine and Life Sciences, City University of Hong Kong, Hong Kong.
| | - Minh T N Le
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore; Institute for Digital Medicine, Immunology Programme and Cancer Programme, Yong Loo Lin School of Medicine, National University of Singapore, Singapore; N.1 Institute for Health, National University of Singapore, Singapore; Department of Surgery, Yong Loo Lin School of Medicine, National University of Singapore, Singapore.
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7
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Athir N, Shah SAA, Shehzad FK, Cheng J, Zhang J, Shi L. Rutile TiO2 integrated zwitterion polyurethane composite films as an efficient photostable food packaging material. REACT FUNCT POLYM 2020. [DOI: 10.1016/j.reactfunctpolym.2020.104733] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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8
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Van Zundert I, Fortuni B, Rocha S. From 2D to 3D Cancer Cell Models-The Enigmas of Drug Delivery Research. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E2236. [PMID: 33187231 PMCID: PMC7696259 DOI: 10.3390/nano10112236] [Citation(s) in RCA: 52] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Revised: 10/30/2020] [Accepted: 11/08/2020] [Indexed: 02/06/2023]
Abstract
Over the past decades, research has made impressive breakthroughs towards drug delivery systems, resulting in a wide range of multifunctional engineered nanoparticles with biomedical applications such as cancer therapy. Despite these significant advances, well-designed nanoparticles rarely reach the clinical stage. Promising results obtained in standard 2D cell culture systems often turn into disappointing outcomes in in vivo models. Although the overall majority of in vitro nanoparticle research is still performed on 2D monolayer cultures, more and more researchers started acknowledging the importance of using 3D cell culture systems, as better models for mimicking the in vivo tumor physiology. In this review, we provide a comprehensive overview of the 3D cancer cell models currently available. We highlight their potential as a platform for drug delivery studies and pinpoint the challenges associated with their use. We discuss in which way each 3D model mimics the in vivo tumor physiology, how they can or have been used in nanomedicine research and to what extent the results obtained so far affect the progress of nanomedicine development. It is of note that the global scientific output associated with 3D models is limited, showing that the use of these systems in nanomedicine investigation is still highly challenging.
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Affiliation(s)
| | - Beatrice Fortuni
- Molecular Imaging and Photonics, Chemistry Department, KU Leuven, Celestijnenlaan 200F, 3001 Heverlee, Belgium;
| | - Susana Rocha
- Molecular Imaging and Photonics, Chemistry Department, KU Leuven, Celestijnenlaan 200F, 3001 Heverlee, Belgium;
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Fam SY, Chee CF, Yong CY, Ho KL, Mariatulqabtiah AR, Tan WS. Stealth Coating of Nanoparticles in Drug-Delivery Systems. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E787. [PMID: 32325941 PMCID: PMC7221919 DOI: 10.3390/nano10040787] [Citation(s) in RCA: 187] [Impact Index Per Article: 46.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Revised: 03/06/2020] [Accepted: 03/07/2020] [Indexed: 01/01/2023]
Abstract
Nanoparticles (NPs) have emerged as a powerful drug-delivery tool for cancer therapies to enhance the specificity of drug actions, while reducing the systemic side effects. Nonetheless, NPs interact massively with the surrounding physiological environments including plasma proteins upon administration into the bloodstream. Consequently, they are rapidly cleared from the blood circulation by the mononuclear phagocyte system (MPS) or complement system, resulting in a premature elimination that will cause the drug release at off-target sites. By grafting a stealth coating layer onto the surface of NPs, the blood circulation half-life of nanomaterials can be improved by escaping the recognition and clearance of the immune system. This review focuses on the basic concept underlying the stealth behavior of NPs by polymer coating, whereby the fundamental surface coating characteristics such as molecular weight, surface chain density as well as conformations of polymer chains are of utmost importance for efficient protection of NPs. In addition, the most commonly used stealth polymers such as poly(ethylene glycol) (PEG), poly(2-oxazoline) (POx), and poly(zwitterions) in developing long-circulating NPs for drug delivery are also thoroughly discussed. The biomimetic strategies, including the cell-membrane camouflaging technique and CD47 functionalization for the development of stealth nano-delivery systems, are highlighted in this review as well.
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Affiliation(s)
- See Yee Fam
- Department of Microbiology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang 43400, Malaysia; (S.Y.F.); (C.Y.Y.)
| | - Chin Fei Chee
- Nanotechnology and Catalysis Research Centre, University of Malaya, Kuala Lumpur 50603, Malaysia;
| | - Chean Yeah Yong
- Department of Microbiology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang 43400, Malaysia; (S.Y.F.); (C.Y.Y.)
| | - Kok Lian Ho
- Department of Pathology, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang 43400, Malaysia;
| | - Abdul Razak Mariatulqabtiah
- Department of Cell and Molecular Biology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang 43400, Malaysia;
- Laboratory of Vaccines and Immunotherapeutics, Institute of Bioscience, Universiti Putra Malaysia, Serdang 43400, Malaysia
| | - Wen Siang Tan
- Department of Microbiology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang 43400, Malaysia; (S.Y.F.); (C.Y.Y.)
- Laboratory of Vaccines and Immunotherapeutics, Institute of Bioscience, Universiti Putra Malaysia, Serdang 43400, Malaysia
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Luo T, Han J, Zhao F, Pan X, Tian B, Ding X, Zhang J. Redox-sensitive micelles based on retinoic acid modified chitosan conjugate for intracellular drug delivery and smart drug release in cancer therapy. Carbohydr Polym 2019; 215:8-19. [DOI: 10.1016/j.carbpol.2019.03.064] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2018] [Revised: 02/19/2019] [Accepted: 03/17/2019] [Indexed: 12/16/2022]
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Wang Q, Lei D, Chen F, Chen Y, Luo X. Tracing Difference: In Vitro and in Vivo Antitumor Property Comparison of pH-Sensitive Biomimetic Phosphorylcholine Micelles with Insensitive Micelles. ACS Biomater Sci Eng 2019; 5:2258-2270. [DOI: 10.1021/acsbiomaterials.9b00027] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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12
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Li J, Zheng L, Xiao H, Li C, Wu S, Xiao Y, Liu J, Zhang B. Design of zwitterionic polyester based nano-carriers for platinum(iv) prodrug delivery. Polym Chem 2019. [DOI: 10.1039/c9py00870e] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Zwitterionic l-cysteine have been applied to modify polyester and load a platinum(iv) drug to prolong the circulation time of the drugs in blood and improve the stability of drug loading.
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Affiliation(s)
- Jiaxu Li
- Beijing National Laboratory for Molecular Sciences
- Key Laboratory of Engineering Plastics
- CAS Research/Education Center for Excellence in Molecular Sciences
- Institute of Chemistry
- Chinese Academy of Sciences
| | - Liuchun Zheng
- Beijing National Laboratory for Molecular Sciences
- Key Laboratory of Engineering Plastics
- CAS Research/Education Center for Excellence in Molecular Sciences
- Institute of Chemistry
- Chinese Academy of Sciences
| | - Haihua Xiao
- State Key Laboratory of Polymer Physics and Chemistry
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- People's Republic of China
| | - Chuncheng Li
- Beijing National Laboratory for Molecular Sciences
- Key Laboratory of Engineering Plastics
- CAS Research/Education Center for Excellence in Molecular Sciences
- Institute of Chemistry
- Chinese Academy of Sciences
| | - Shaohua Wu
- Beijing National Laboratory for Molecular Sciences
- Key Laboratory of Engineering Plastics
- CAS Research/Education Center for Excellence in Molecular Sciences
- Institute of Chemistry
- Chinese Academy of Sciences
| | - Yaonan Xiao
- Beijing National Laboratory for Molecular Sciences
- Key Laboratory of Engineering Plastics
- CAS Research/Education Center for Excellence in Molecular Sciences
- Institute of Chemistry
- Chinese Academy of Sciences
| | - Jiajian Liu
- Beijing National Laboratory for Molecular Sciences
- Key Laboratory of Engineering Plastics
- CAS Research/Education Center for Excellence in Molecular Sciences
- Institute of Chemistry
- Chinese Academy of Sciences
| | - Bo Zhang
- Beijing National Laboratory for Molecular Sciences
- Key Laboratory of Engineering Plastics
- CAS Research/Education Center for Excellence in Molecular Sciences
- Institute of Chemistry
- Chinese Academy of Sciences
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Bioinspired mimics: Self-assembly of redox-activated phosphorylcholine–based biodegradable copolymers for enhancing antitumor efficiency. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 89:401-412. [DOI: 10.1016/j.msec.2018.04.003] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2017] [Revised: 02/21/2018] [Accepted: 04/04/2018] [Indexed: 01/16/2023]
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14
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Affiliation(s)
- Hengameh Honarkar
- Polyurethane and Advanced Polymers Department, Faculty of Science, Iran Polymer and Petrochemical Institute, Tehran, Iran
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15
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16
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Biomimetic Principles to Develop Blood Compatible Surfaces. Int J Artif Organs 2017; 40:22-30. [DOI: 10.5301/ijao.5000559] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/27/2017] [Indexed: 12/11/2022]
Abstract
Functionalized biomaterial surface patterns capable of resisting nonspecific adsorption while retaining their bioactivity are crucial in the advancement of biomedical technologies, but currently available biomaterials intended for use in whole blood frequently suffer from nonspecific adsorption of proteins and cells, leading to a loss of activity over time. In this review, we address two concepts for the design and modification of blood compatible biomaterial surfaces, zwitterionic modification and surface functionalization with glycans – both of which are inspired by the membrane structure of mammalian cells – and discuss their potential for biomedical applications.
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Lu A, Li C, Wu Z, Luo X. The interaction between poly(ε-caprolactone) copolymers containing sulfobetaines and proteins. Colloid Polym Sci 2016. [DOI: 10.1007/s00396-016-3942-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Paluck S, Nguyen TH, Maynard HD. Heparin-Mimicking Polymers: Synthesis and Biological Applications. Biomacromolecules 2016; 17:3417-3440. [PMID: 27739666 PMCID: PMC5111123 DOI: 10.1021/acs.biomac.6b01147] [Citation(s) in RCA: 127] [Impact Index Per Article: 15.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2016] [Revised: 09/26/2016] [Indexed: 12/13/2022]
Abstract
Heparin is a naturally occurring, highly sulfated polysaccharide that plays a critical role in a range of different biological processes. Therapeutically, it is mostly commonly used as an injectable solution as an anticoagulant for a variety of indications, although it has also been employed in other forms such as coatings on various biomedical devices. Due to the diverse functions of this polysaccharide in the body, including anticoagulation, tissue regeneration, anti-inflammation, and protein stabilization, and drawbacks of its use, analogous heparin-mimicking materials are also widely studied for therapeutic applications. This review focuses on one type of these materials, namely, synthetic heparin-mimicking polymers. Utilization of these polymers provides significant benefits compared to heparin, including enhancing therapeutic efficacy and reducing side effects as a result of fine-tuning heparin-binding motifs and other molecular characteristics. The major types of the various polymers are summarized, as well as their applications. Because development of a broader range of heparin-mimicking materials would further expand the impact of these polymers in the treatment of various diseases, future directions are also discussed.
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Affiliation(s)
- Samantha
J. Paluck
- Department of Chemistry and
Biochemistry and the California NanoSystems Institute, University of California−Los Angeles, 607 Charles E. Young Dr East, Los Angeles, California 90095, United States
| | - Thi H. Nguyen
- Department of Chemistry and
Biochemistry and the California NanoSystems Institute, University of California−Los Angeles, 607 Charles E. Young Dr East, Los Angeles, California 90095, United States
| | - Heather D. Maynard
- Department of Chemistry and
Biochemistry and the California NanoSystems Institute, University of California−Los Angeles, 607 Charles E. Young Dr East, Los Angeles, California 90095, United States
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Qu N, Lee RJ, Sun Y, Cai G, Wang J, Wang M, Lu J, Meng Q, Teng L, Wang D, Teng L. Cabazitaxel-loaded human serum albumin nanoparticles as a therapeutic agent against prostate cancer. Int J Nanomedicine 2016; 11:3451-9. [PMID: 27555767 PMCID: PMC4968984 DOI: 10.2147/ijn.s105420] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
Cabazitaxel-loaded human serum albumin nanoparticles (Cbz-NPs) were synthesized to overcome vehicle-related toxicity of current clinical formulation of the drug based on Tween-80 (Cbz-Tween). A salting-out method was used for NP synthesis that avoids the use of chlorinated organic solvent and is simpler compared to the methods based on emulsion-solvent evaporation. Cbz-NPs had a narrow particle size distribution, suitable drug loading content (4.9%), and superior blood biocompatibility based on in vitro hemolysis assay. Blood circulation, tumor uptake, and antitumor activity of Cbz-NPs were assessed in prostatic cancer xenograft-bearing nude mice. Cbz-NPs exhibited prolonged blood circulation and greater accumulation of Cbz in tumors along with reduced toxicity compared to Cbz-Tween. Moreover, hematoxylin and eosin histopathological staining of organs revealed consistent results. The levels of blood urea nitrogen and serum creatinine in drug-treated mice showed that Cbz-NPs were less toxic than Cbz-Tween to the kidneys. In conclusion, Cbz-NPs provide a promising therapeutic for prostate cancer.
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Affiliation(s)
- Na Qu
- School of Life Sciences, Jilin University, Changchun, People's Republic of China
| | - Robert J Lee
- School of Life Sciences, Jilin University, Changchun, People's Republic of China; Division of Pharmaceutics, College of Pharmacy, The Ohio State University, Columbus, OH, USA
| | - Yating Sun
- School of Life Sciences, Jilin University, Changchun, People's Republic of China
| | - Guangsheng Cai
- School of Life Sciences, Jilin University, Changchun, People's Republic of China
| | - Junyang Wang
- School of Life Sciences, Jilin University, Changchun, People's Republic of China
| | - Mengqiao Wang
- School of Life Sciences, Jilin University, Changchun, People's Republic of China
| | - Jiahui Lu
- School of Life Sciences, Jilin University, Changchun, People's Republic of China
| | - Qingfan Meng
- School of Life Sciences, Jilin University, Changchun, People's Republic of China
| | - Lirong Teng
- School of Life Sciences, Jilin University, Changchun, People's Republic of China
| | - Di Wang
- School of Life Sciences, Jilin University, Changchun, People's Republic of China
| | - Lesheng Teng
- School of Life Sciences, Jilin University, Changchun, People's Republic of China; State Key Laboratory of Long-acting and Targeting Drug Delivery System, Yantai, People's Republic of China
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20
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Polymeric nanoparticles based on chitooligosaccharide as drug carriers for co-delivery of all-trans-retinoic acid and paclitaxel. Carbohydr Polym 2015; 129:25-34. [PMID: 26050884 DOI: 10.1016/j.carbpol.2015.04.036] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2015] [Revised: 04/03/2015] [Accepted: 04/15/2015] [Indexed: 01/07/2023]
Abstract
An amphiphilic all-trans-retinoic acid (ATRA)-chitooligosaccharide (RCOS) conjugate was synthesized to form self-assembled polymeric nanoparticles to facilitate the co-delivery of ATRA and paclitaxel (PTX). The blank RCOS nanoparticles possessed low hemolytic activity and cytotoxicity, and could efficiently load PTX with a drug loading of 22.2% and a high encapsulation efficiency of 71.3%. PTX-loaded RCOS nanoparticles displayed a higher cytotoxicity to HepG2 cells compared to PTX plus ATRA solution when corrected by the accumulated drug release. Cellular uptake profiles of RCOS nanoparticles were evaluated via confocal laser scanning microscope and flow cytometry with FITC as a fluorescent mark. The RCOS nanoparticles could be rapidly and continuously taken up by HepG2 cells via endocytosis and transported into the nucleus, and the uptake rates increased with particle concentration. These results revealed the promising potential of RCOS nanoparticles as drug carriers for co-delivery of ATRA and PTX or other hydrophobic therapeutic agents.
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21
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Cai M, Leng M, Lu A, He L, Xie X, Huang L, Ma Y, Cao J, Chen Y, Luo X. Synthesis of amphiphilic copolymers containing zwitterionic sulfobetaine as pH and redox responsive drug carriers. Colloids Surf B Biointerfaces 2015; 126:1-9. [DOI: 10.1016/j.colsurfb.2014.12.005] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2014] [Revised: 11/27/2014] [Accepted: 12/03/2014] [Indexed: 11/25/2022]
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22
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Ye SH, Hong Y, Sakaguchi H, Shankarraman V, Luketich SK, D'Amore A, Wagner WR. Nonthrombogenic, biodegradable elastomeric polyurethanes with variable sulfobetaine content. ACS APPLIED MATERIALS & INTERFACES 2014; 6:22796-806. [PMID: 25415875 DOI: 10.1021/am506998s] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
For applications where degradable polymers are likely to have extended blood contact, it is often important for these materials to exhibit high levels of thromboresistance. This can be achieved with surface modification approaches, but such modifications may be transient with degradation. Alternatively, polymer design can be altered such that the bulk polymer is thromboresistant and this is maintained with degradation. Toward this end a series of biodegradable, elastic polyurethanes (PESBUUs) containing different zwitterionic sulfobetaine (SB) content were synthesized from a polycaprolactone-diol (PCL-diol):SB-diol mixture (100:0, 75:25, 50:50, 25:75 and 0:100) reacted with diisocyanatobutane and chain extended with putrescine. The chemical structure, tensile mechanical properties, thermal properties, hydrophilicity, biodegradability, fibrinogen adsorption and thrombogenicity of the resulting polymers was characterized. With increased SB content some weakening in tensile properties occurred in wet conditions and enzymatic degradation also decreased. However, at higher zwitterionic molar ratios (50% and 75%) wet tensile strength exceeded 15 MPa and breaking strain was >500%. Markedly reduced thrombotic deposition was observed both before and after substantial degradation for both of these PESBUUs and they could be processed by electrospinning into a vascular conduit format with appropriate compliance properties. The mechanical and degradation properties as well as the acute in vitro thrombogenicity assessment suggest that these tunable polyurethanes could provide options appropriate for use in blood contacting applications where a degradable, elastomeric component with enduring thromboresistance is desired.
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Affiliation(s)
- Sang-Ho Ye
- McGowan Institute for Regenerative Medicine, ‡Department of Surgery, ||Department of Bioengineering, and ▽Department of Chemical Engineering, University of Pittsburgh , Pittsburgh, Pennsylvania 15219, United States
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23
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Ding Y, Han J, Tian B, Han J, Zhang J, Zheng H, Han Y, Pei M. Hepatoma-targeting and pH-sensitive nanocarriers based on a novel d-galactopyranose copolymer for efficient drug delivery. Int J Pharm 2014; 477:187-96. [DOI: 10.1016/j.ijpharm.2014.10.024] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2014] [Revised: 09/24/2014] [Accepted: 10/10/2014] [Indexed: 12/19/2022]
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24
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Nelson AM, Long TE. Synthesis, Properties, and Applications of Ion-Containing Polyurethane Segmented Copolymers. MACROMOL CHEM PHYS 2014. [DOI: 10.1002/macp.201400373] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Ashley M. Nelson
- Department of Chemistry and Macromolecules and Interfaces Institute; Virginia Tech; Blacksburg VA 24061 USA
| | - Timothy E. Long
- Department of Chemistry and Macromolecules and Interfaces Institute; Virginia Tech; Blacksburg VA 24061 USA
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25
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Tauhardt L, Pretzel D, Kempe K, Gottschaldt M, Pohlers D, Schubert US. Zwitterionic poly(2-oxazoline)s as promising candidates for blood contacting applications. Polym Chem 2014. [DOI: 10.1039/c4py00434e] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The hemocompatibility and cytotoxicity of zwitterionic poly(2-oxazoline)s are investigated.
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Affiliation(s)
- Lutz Tauhardt
- Laboratory of Organic and Macromolecular Chemistry (IOMC)
- Friedrich Schiller University Jena
- 07743 Jena, Germany
- Jena Center for Soft Matter (JCSM)
- Friedrich Schiller University Jena
| | - David Pretzel
- Laboratory of Organic and Macromolecular Chemistry (IOMC)
- Friedrich Schiller University Jena
- 07743 Jena, Germany
- Jena Center for Soft Matter (JCSM)
- Friedrich Schiller University Jena
| | - Kristian Kempe
- Laboratory of Organic and Macromolecular Chemistry (IOMC)
- Friedrich Schiller University Jena
- 07743 Jena, Germany
- Jena Center for Soft Matter (JCSM)
- Friedrich Schiller University Jena
| | - Michael Gottschaldt
- Laboratory of Organic and Macromolecular Chemistry (IOMC)
- Friedrich Schiller University Jena
- 07743 Jena, Germany
- Jena Center for Soft Matter (JCSM)
- Friedrich Schiller University Jena
| | - Dirk Pohlers
- Centre for Diagnostic at the Clinic of Chemnitz
- 09116 Chemnitz, Germany
| | - Ulrich S. Schubert
- Laboratory of Organic and Macromolecular Chemistry (IOMC)
- Friedrich Schiller University Jena
- 07743 Jena, Germany
- Jena Center for Soft Matter (JCSM)
- Friedrich Schiller University Jena
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26
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Wei H, Han L, Ren J, Jia L. Anticoagulant surface coating using composite polysaccharides with embedded heparin-releasing mesoporous silica. ACS APPLIED MATERIALS & INTERFACES 2013; 5:12571-12578. [PMID: 24224889 DOI: 10.1021/am403882x] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Release of heparin from the surface of biomaterials is a feasible and efficient manner for preventing blood coagulation because of the high bioactivity of free heparin and a low application dosage compared to intravenous injection of heparin. Here we report a novel method featuring a blend of heparin-loaded SBA-15, catechol-modified chitosan (CCS), and heparin as a heparin-releasing film. The release of heparin was based on its leakage from heparin-loaded amino-functionalized mesoporous silica SBA-15 (SBA-15-NH2), which was controlled by the amino density of the SBA-15-NH2. Heparin-loaded SBA-15-NH2, CCS, and heparin were mixed together, and the mixture was cast onto the surface of a polydopamine-modified substrate, forming a heparin-releasing film on the surface of the substrate. The polydopamine acted as an adhesive interlayer that stabilized the film coated on the substrate. The sustained release rates of heparin from the film ranged from 15.8 to 2.1 μg/cm(2)/h within 8 h. The heparin-releasing film showed low fibrinogen adsorption, platelet adhesion, and hemolysis rate, indicating that it has good blood compatibility. This new approach would be very useful for modifying the surface of versatile blood-contacting biomaterials and ultimately improve their anticoagulation performance.
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Affiliation(s)
- Houliang Wei
- School of Life Science and Biotechnology, Dalian University of Technology , No. 2 Linggong Road, Dalian, Liaoning 116023, P. R. China
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Cao J, Yang M, Lu A, Zhai S, Chen Y, Luo X. Polyurethanes containing zwitterionic sulfobetaines and their molecular chain rearrangement in water. J Biomed Mater Res A 2012; 101:909-18. [PMID: 23255492 DOI: 10.1002/jbm.a.34384] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2012] [Revised: 07/16/2012] [Accepted: 07/17/2012] [Indexed: 11/10/2022]
Abstract
Novel polyurethanes with zwitterionic sulfobetaines, termed PUR-APS, were designed and synthesized by chain-extension of biodegradable poly(ε-caprolactone) containing N,N'-bis (2-hydroxyethyl) methylamine ammonium propane sulfonate (PCL-APS) with hexamethylene diisocyanate (HDI). The bulk properties of polymers were characterized by nuclear magnetic resonance spectrum (NMR), Fourier transform infrared spectroscopy (FTIR), gel permeation chromatograph (GPC), and differential scanning calorimetry (DSC). Results showed that the polymers were successfully synthesized. Water contact angles (WCAs) and X-ray photoelectron spectroscopy (XPS) revealed that molecular chains of the polymers rearranged after soaking in water. The amount of protein adsorption, determined by bicinchoninic acid (BCA) assay, was less than 300 ng/cm(2) and decreased after hydration. The blood compatibility of the polymers was evaluated by the degree of hemolytic and activated partial thromboplastic time (APTT) and prothrombin time (PT). Results indicated that PUR-APS polymers had good blood compatibility. Therefore, polyurethanes containing sulfobetaines have a great potential for biomedical application.
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Affiliation(s)
- Jun Cao
- College of Polymer Science and Engineering of Sichuan University, Sichuan University, Sichuan 610065, People's Republic of China
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28
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Li M, Neoh KG, Xu LQ, Wang R, Kang ET, Lau T, Olszyna DP, Chiong E. Surface modification of silicone for biomedical applications requiring long-term antibacterial, antifouling, and hemocompatible properties. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2012; 28:16408-22. [PMID: 23121175 DOI: 10.1021/la303438t] [Citation(s) in RCA: 105] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Silicone has been used for peritoneal dialysis (PD) catheters for several decades. However, bacteria, platelets, proteins, and other biomolecules tend to adhere to its hydrophobic surface, which may lead to PD outflow failure, serious infection, or even death. In this work, a cross-linked poly(poly(ethylene glycol) dimethacrylate) (P(PEGDMA)) polymer layer was covalently grafted on medical-grade silicone surface to improve its antibacterial and antifouling properties. The P(PEGDMA)-grafted silicone (Silicone-g-P(PEGDMA)) substrate reduced the adhesion of Staphylococcus aureus , Escherichia coli , and Staphylococcus epidermidis , as well as 3T3 fibroblast cells by ≥90%. The antibacterial and antifouling properties were preserved after the modified substrate was aged for 30 days in phosphate buffer saline. Further immobilization of a polysulfobetaine polymer, poly((2-(methacryloyloxy)ethyl)dimethyl-(3-sulfopropyl)ammonium hydroxide) (P(DMAPS)), on the Silicone-g-P(PEGDMA) substrate via thiol-ene click reaction leads to enhanced antifouling efficacy and improved hemocompatibility with the preservation of the antibacterial property. Compared to pristine silicone, the so-obtained Silicone-g-P(PEGDMA)-P(DMAPS) substrate reduced the absorption of bovine serum albumin and bovine plasma fibrinogen by ≥80%. It also reduced the number of adherent platelets by ≥90% and significantly prolonged plasma recalcification time. The results indicate that surface grafting with P(PEGDMA) and P(DMAPS) can be potentially useful for the modification of silicone-based PD catheters for long-term applications.
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Affiliation(s)
- Min Li
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Kent Ridge, Singapore 117576
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29
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Wang HG, Yin TY, Ge SP, Zhang Q, Dong QL, Lei DX, Sun DM, Wang GX. Biofunctionalization of titanium surface with multilayer films modified by heparin-VEGF-fibronectin complex to improve endothelial cell proliferation and blood compatibility. J Biomed Mater Res A 2012; 101:413-20. [DOI: 10.1002/jbm.a.34339] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2011] [Revised: 04/09/2012] [Accepted: 06/15/2012] [Indexed: 02/06/2023]
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30
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Cao J, Xiu KM, Zhu K, Chen YW, Luo XL. Copolymer nanoparticles composed of sulfobetaine and poly(ε-caprolactone) as novel anticancer drug carriers. J Biomed Mater Res A 2012; 100:2079-87. [PMID: 22581715 DOI: 10.1002/jbm.a.34120] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2011] [Revised: 02/02/2012] [Accepted: 02/03/2012] [Indexed: 11/09/2022]
Abstract
Novel ABA type amphiphilic copolymers (PCL-APS-PCL) consisting of polycaprolactone (PCL) (A) as hydrophobic block and N,N'-bis (2-hydroxyethyl) methylamine ammonium propane sulfonate (APS) (B) as hydrophilic segment, self-assembled into nanoparticles (NPs) with solvent evaporation method. The sizes and size distributions of NPs were characterized by dynamic light scattering. The morphology of NPs was observed by scanning electron microscopy (SEM). The critical micelle concentration (CMC) was determined by fluorescent probe. The drug loading content (DLC) and the drug release amount were characterized by UV-visible spectrophotometer. The cytotoxicity of the NPs was measured by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenylte-trazoliumbromide (MTT) assay. It was found that the NPs were spherical in shape with sizes around 100 nm. The CMCs of the copolymers were quite low (×10(-4) mg/mL). The DLC decreased with lengthening of hydrophobic PCL block. In vitro drug release experiment demonstrated that the release rate of paclitaxel sped with the decrease of PCL length. MTT results showed that NPs were nontoxic to osteoblast and human epithelial carcinoma (hela) cells. After drug loading, NPs could restrain the growth of hela or even kill hela cells. Therefore, these preliminary studies suggest that the novel PCL-APS-PCL NPs have a great potential application as anticancer drug-delivery carriers.
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Affiliation(s)
- Jun Cao
- College of Polymer Science and Engineering of Sichuan University, Sichuan University, Sichuan 610065, People's Republic of China
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Gao R, Zhang M, Dixit N, Moore RB, Long TE. Influence of ionic charge placement on performance of poly(ethylene glycol)-based sulfonated polyurethanes. POLYMER 2012. [DOI: 10.1016/j.polymer.2012.01.043] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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