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Nieto C, Vega MA, Rodríguez V, Pérez-Esteban P, Martín del Valle EM. Biodegradable gellan gum hydrogels loaded with paclitaxel for HER2+ breast cancer local therapy. Carbohydr Polym 2022; 294:119732. [DOI: 10.1016/j.carbpol.2022.119732] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Revised: 05/30/2022] [Accepted: 06/09/2022] [Indexed: 11/30/2022]
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2
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Nagaraja K, Rao KM, Rao KK, Han SS. Dual responsive tamarind gum-co-poly(N-isopropyl acrylamide-co-ethylene glycol vinyl ether) hydrogel: A promising device for colon specific anti-cancer drug delivery. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.128456] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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3
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Hou X, Zhang Y, Li Y, Chen J, Yu Z, Xu L, Liu H. Frame-guided assembly of DNA nanohydrogels via clamped hybridization chain reactions. POLYMER 2022. [DOI: 10.1016/j.polymer.2022.124659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Peters JT, Wechsler ME, Peppas NA. Advanced biomedical hydrogels: molecular architecture and its impact on medical applications. Regen Biomater 2021; 8:rbab060. [PMID: 34925879 PMCID: PMC8678442 DOI: 10.1093/rb/rbab060] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2021] [Revised: 09/22/2021] [Accepted: 10/18/2021] [Indexed: 12/13/2022] Open
Abstract
Hydrogels are cross-linked polymeric networks swollen in water, physiological aqueous solutions or biological fluids. They are synthesized by a wide range of polymerization methods that allow for the introduction of linear and branched units with specific molecular characteristics. In addition, they can be tuned to exhibit desirable chemical characteristics including hydrophilicity or hydrophobicity. The synthesized hydrogels can be anionic, cationic, or amphiphilic and can contain multifunctional cross-links, junctions or tie points. Beyond these characteristics, hydrogels exhibit compatibility with biological systems, and can be synthesized to render systems that swell or collapse in response to external stimuli. This versatility and compatibility have led to better understanding of how the hydrogel's molecular architecture will affect their physicochemical, mechanical and biological properties. We present a critical summary of the main methods to synthesize hydrogels, which define their architecture, and advanced structural characteristics for macromolecular/biological applications.
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Affiliation(s)
- Jonathan T Peters
- McKetta Department of Chemical Engineering, The University of Texas at Austin, Austin, 200 E. Dean Keeton, Austin, TX 78712, USA
- Institute for Biomaterials, Drug Delivery, and Regenerative Medicine, The University of Texas at Austin, 107 W. Dean Keeton, Austin, TX 78712, USA
| | - Marissa E Wechsler
- Department of Biomedical Engineering and Chemical Engineering, The University of Texas at San Antonio, One UTSA Circle, San Antonio, TX, 78249, USA
| | - Nicholas A Peppas
- McKetta Department of Chemical Engineering, The University of Texas at Austin, Austin, 200 E. Dean Keeton, Austin, TX 78712, USA
- Institute for Biomaterials, Drug Delivery, and Regenerative Medicine, The University of Texas at Austin, 107 W. Dean Keeton, Austin, TX 78712, USA
- Department of Biomedical Engineering, The University of Texas at Austin, 107 W. Dean Keeton, Austin, TX 78712, USA
- Division of Molecular Pharmaceutics and Drug Delivery, College of Pharmacy, The University of Texas at Austin, 107 W. Dean Keeton, Austin, TX 78712, USA
- Department of Surgery and Perioperative Care, and Department of Pediatrics, Dell Medical School, The University of Texas at Austin, 1601 Trinity St., Bldg. B, Austin, TX 78712, USA
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Nagaraja K, Krishna Rao KSV, Zo S, Soo Han S, Rao KM. Synthesis of Novel Tamarind Gum- co-poly(acrylamidoglycolic acid)-Based pH Responsive Semi-IPN Hydrogels and Their Ag Nanocomposites for Controlled Release of Chemotherapeutics and Inactivation of Multi-Drug-Resistant Bacteria. Gels 2021; 7:237. [PMID: 34940297 PMCID: PMC8701875 DOI: 10.3390/gels7040237] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Revised: 11/16/2021] [Accepted: 11/24/2021] [Indexed: 12/23/2022] Open
Abstract
In this paper, novel pH-responsive, semi-interpenetrating polymer hydrogels based on tamarind gum-co-poly(acrylamidoglycolic acid) (TMGA) polymers were synthesized using simple free radical polymerization in the presence of bis[2-(methacryloyloxy)ethyl] phosphate as a crosslinker and potassium persulfate as a initiator. In addition, these hydrogels were used as templates for the green synthesis of silver nanoparticles (13.4 ± 3.6 nm in diameter, TMGA-Ag) by using leaf extract of Teminalia bellirica as a reducing agent. Swelling kinetics and the equilibrium swelling behavior of the TMGA hydrogels were investigated in various pH environments, and the maximum % of equilibrium swelling behavior observed was 2882 ± 1.2. The synthesized hydrogels and silver nanocomposites were characterized via UV, FTIR, XRD, SEM and TEM. TMGA and TMGA-Ag hydrogels were investigated to study the characteristics of drug delivery and antimicrobial study. Doxorubicin hydrochloride, a chemotherapeutic agent successfully encapsulated with maximum encapsulation efficiency, i.e., 69.20 ± 1.2, was used in in vitro release studies in pH physiological and gastric environments at 37 °C. The drug release behavior was examined with kinetic models such as zero-order, first-order, Higuchi, Hixson Crowell and Korsmeyer-Peppas. These release data were best fitted with the Korsemeyer-Peppas transport mechanism, with n = 0.91. The effects of treatment on HCT116 human colon cancer cells were assessed via cell viability and cell cycle analysis. The antimicrobial activity of TMGA-Ag hydrogels was studied against Staphylococcus aureus and Klebsiella pneumonia. Finally, the results demonstrate that TMGA and TMGA-Ag are promising candidates for anti-cancer drug delivery and the inactivation of pathogenic bacteria, respectively.
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Affiliation(s)
- Kasula Nagaraja
- Polymer Biomaterial Design and Synthesis Laboratory, Department of Chemistry, Yogi Vemana University, Kadapa 516005, Andhra Pradesh, India;
| | - Kummari S. V. Krishna Rao
- Polymer Biomaterial Design and Synthesis Laboratory, Department of Chemistry, Yogi Vemana University, Kadapa 516005, Andhra Pradesh, India;
| | - Sunmi Zo
- School of Chemical Engineering, Yeungnam University, 280 Daehak-ro, Gyeongsan 38541, Gyeongbuk, Korea; (S.Z.); (S.S.H.)
- Research Institute of Cell Culture, Yeungnam University, 280 Daehak-ro, Gyeongsan 38541, Gyeongbuk, Korea
| | - Sung Soo Han
- School of Chemical Engineering, Yeungnam University, 280 Daehak-ro, Gyeongsan 38541, Gyeongbuk, Korea; (S.Z.); (S.S.H.)
- Research Institute of Cell Culture, Yeungnam University, 280 Daehak-ro, Gyeongsan 38541, Gyeongbuk, Korea
| | - Kummara Madhususdana Rao
- School of Chemical Engineering, Yeungnam University, 280 Daehak-ro, Gyeongsan 38541, Gyeongbuk, Korea; (S.Z.); (S.S.H.)
- Research Institute of Cell Culture, Yeungnam University, 280 Daehak-ro, Gyeongsan 38541, Gyeongbuk, Korea
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6
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Martínez-Relimpio AM, Benito M, Pérez-Izquierdo E, Teijón C, Olmo RM, Blanco MD. Paclitaxel-Loaded Folate-Targeted Albumin-Alginate Nanoparticles Crosslinked with Ethylenediamine. Synthesis and In Vitro Characterization. Polymers (Basel) 2021; 13:2083. [PMID: 34202848 PMCID: PMC8272094 DOI: 10.3390/polym13132083] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Revised: 06/16/2021] [Accepted: 06/21/2021] [Indexed: 11/25/2022] Open
Abstract
Among the different ways to reduce the secondary effects of antineoplastic drugs in cancer treatment, the use of nanoparticles has demonstrated good results due to the protection of the drug and the possibility of releasing compounds to a specific therapeutic target. The α-isoform of the folate receptor (FR) is overexpressed on a significant number of human cancers; therefore, folate-targeted crosslinked nanoparticles based on BSA and alginate mixtures and loaded with paclitaxel (PTX) have been prepared to maximize the proven antineoplastic activity of the drug against solid tumors. Nanometric-range-sized particles (169 ± 28 nm-296 ± 57 nm), with negative Z-potential values (between -0.12 ± 0.04 and -94.1± 0.4), were synthesized, and the loaded PTX (2.63 ± 0.19-3.56 ±0.13 µg PTX/mg Np) was sustainably released for 23 and 27 h. Three cell lines (MCF-7, MDA-MB-231 and HeLa) were selected to test the efficacy of the folate-targeted PTX-loaded BSA/ALG nanocarriers. The presence of FR on the cell membrane led to a significantly larger uptake of BSA/ALG-Fol nanoparticles compared with the equivalent nanoparticles without folic acid on their surface. The cell viability results demonstrated a cytocompatibility of unloaded nanoparticle-Fol and a gradual decrease in cell viability after treatment with PTX-loaded nanoparticle-Fol due to the sustainable PTX release.
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Affiliation(s)
- Ana María Martínez-Relimpio
- Facultad de Ciencias Experimentales, Universidad Francisco de Vitoria, Pozuelo de Alarcón, 28223 Madrid, Spain;
| | - Marta Benito
- Fundación San Juan de Dios, Centro de Ciencias de la Salud San Rafael, Universidad de Nebrija, Paseo de La Habana, 70, 28036 Madrid, Spain;
| | - Elena Pérez-Izquierdo
- Department of Health Sciences, Faculty of Biomedical and Health Sciences, Universidad Europea de Madrid, Urbanización El Bosque, Calle Tajo, s/n, 28670 Villaviciosa de Odón, Spain
| | - César Teijón
- Nursing Department, Faculty of Nursing, Physiotherapy and Podiatry, Universidad Complutense de Madrid, 28040 Madrid, Spain;
| | - Rosa María Olmo
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, Universidad Complutense de Madrid, 28040 Madrid, Spain; (R.M.O.); (M.D.B.)
| | - María Dolores Blanco
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, Universidad Complutense de Madrid, 28040 Madrid, Spain; (R.M.O.); (M.D.B.)
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Yu L, Kong L, Xie J, Wang W, Chang C, Che H, Liu M. Reduction-sensitive N, N'-Bis(acryloyl) cystinamide-polymerized Nanohydrogel as a Potential Nanocarrier for Paclitaxel Delivery. Des Monomers Polym 2021; 24:98-105. [PMID: 33967595 PMCID: PMC8079002 DOI: 10.1080/15685551.2021.1914398] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Accepted: 04/05/2021] [Indexed: 12/26/2022] Open
Abstract
Novel monomer, N, N'-bis(acryloyl) cystinamide (NBACA), was designed and synthesized with L-cystine as row material. By using this NBACA both as the monomer and crosslinker, reduction-sensitive nanohydrogel was prepared in ethanol via distillation-precipitation polymerization. The obtained nanohydrogel can provide a relatively hydrophobic environment and hydrogen-bonding sites inside the gel; therefore, it is suitable for loading hydrophobic drug. When paclitaxel that possess poor water-solubility was used as a model drug, the nanohydrogel represented a high drug-loading capacity, and dispersed well in aqueous solutions. Furthermore, the disulfide-group-containing nanohydrogel exhibited good reduction-sensitive drug-release behavior. The nanohydrogel biodegraded rapidly in a reducing environment, and released approximately 80% of the PTX within 24 h. Cytotoxicity assays showed that the PTX-loaded nanohydrogel exhibited high cytotoxicity against MCF-7 breast cancer cells, while blank nanohydrogels displayed a negligible cytotoxicity.
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Affiliation(s)
- Linna Yu
- Key Laboratory of Structure-Based Drugs Design & Discovery (Shenyang Pharmaceutical University) of Ministry of Education, Shenyang, P. R. China
- Department of Organic Chemistry, School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Shenyang, P. R. China
- Benxi Institute of Pharmaceutical Research, Shenyang Pharmaceutical University, Benxi, P. R. China
| | - Lingping Kong
- Key Laboratory of Structure-Based Drugs Design & Discovery (Shenyang Pharmaceutical University) of Ministry of Education, Shenyang, P. R. China
- Department of Organic Chemistry, School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Shenyang, P. R. China
- Benxi Institute of Pharmaceutical Research, Shenyang Pharmaceutical University, Benxi, P. R. China
| | - Junpeng Xie
- Key Laboratory of Structure-Based Drugs Design & Discovery (Shenyang Pharmaceutical University) of Ministry of Education, Shenyang, P. R. China
- Department of Organic Chemistry, School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Shenyang, P. R. China
- Benxi Institute of Pharmaceutical Research, Shenyang Pharmaceutical University, Benxi, P. R. China
| | - Wei Wang
- Precedo Pharmaceuticals Co. Ltd., Hefei, P. R. China
| | - Chen Chang
- Key Laboratory of Structure-Based Drugs Design & Discovery (Shenyang Pharmaceutical University) of Ministry of Education, Shenyang, P. R. China
- Department of Organic Chemistry, School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Shenyang, P. R. China
- Benxi Institute of Pharmaceutical Research, Shenyang Pharmaceutical University, Benxi, P. R. China
| | - Hongli Che
- Key Laboratory of Structure-Based Drugs Design & Discovery (Shenyang Pharmaceutical University) of Ministry of Education, Shenyang, P. R. China
- Department of Organic Chemistry, School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Shenyang, P. R. China
- Benxi Institute of Pharmaceutical Research, Shenyang Pharmaceutical University, Benxi, P. R. China
| | - Mingzhe Liu
- Key Laboratory of Structure-Based Drugs Design & Discovery (Shenyang Pharmaceutical University) of Ministry of Education, Shenyang, P. R. China
- Department of Organic Chemistry, School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Shenyang, P. R. China
- Benxi Institute of Pharmaceutical Research, Shenyang Pharmaceutical University, Benxi, P. R. China
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8
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Nanogels Capable of Triggered Release. ADVANCES IN BIOCHEMICAL ENGINEERING/BIOTECHNOLOGY 2021; 178:99-146. [PMID: 33665715 DOI: 10.1007/10_2021_163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
This chapter provides an overview of soft and environmentally sensitive polymeric nanosystems, which are widely known as nanogels. These particles keep great promise to the area of drug delivery due to their high biocompatibility with body fluids and tissues, as well as due to their ability to encapsulate and release the loaded drugs in a controlled manner. For a long period of time, the controlled drug delivery systems were designed to provide long-termed or sustained release. However, some medical treatments such as cancer chemotherapy, protein and gene delivery do not require the prolonged release of the drug in the site of action. In contrast, the rapid increase of the drug concentration is needed for gaining the desired biological effect. Being very sensitive to surrounding media and different stimuli, nanogels can undergo physico-chemical transitions or chemical changes in their structure. Such changes can result in more rapid release of the drugs, which is usually referred to as triggered drug release. Herein we give the basic information on nanogel unique features, methods of sensitive nanogels preparation, as well as on main mechanisms of triggered release. Additionally, the triggered release of low-molecular drugs and biomacromolecules are discussed.
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Zia MA, Sohail M, Minhas MU, Sarfraz RM, Khan S, de Matas M, Hussain Z, Abbasi M, Shah SA, Kousar M, Ahmad N. HEMA based pH-sensitive semi IPN microgels for oral delivery; a rationale approach for ketoprofen. Drug Dev Ind Pharm 2020; 46:272-282. [PMID: 31928342 DOI: 10.1080/03639045.2020.1716378] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Objectives: The study aimed to develop safe, effective, and targeted drug delivery system for administration of nonsteroidal anti-inflammatory drugs (NSAIDs) in the form of microgels. We developed pH responsive microgels to overcome the mucosal damage caused by traditional immediate release dosage forms. Colon targeting and controlled release formulations have the potential to improve efficacy and reduce undesirable effects associated with NSAIDs.Methods: The pH sensitive oral hydrogel demonstrates the potential to target the colon. Cellulose acetate phthalate (CAP) and hydroxyethyl methacrylate (HEMA) based microgel particles were produced using a free radical polymerization technique using ammonium persulfate (APS) initiator and methylenebisacrylamide (MBA) as the crosslinking agent. Swelling and in-vitro drug release studies were performed at a range of pH conditions. The produced formulations were characterized using Fourier transform infrared spectroscopy, thermogravimetric analysis, differential scanning calorimetry, scanning electron microscopy (SEM), and X-ray diffraction. Biocompatibility of the microgels was analyzed in cytotoxicity studies.Key findings: The swelling and release rate were negligible at pH 1.2, which confirmed the pH-responsiveness of CAP-co-poly(HEMA). The co-polymeric system prevents the release of ketoprofen sodium in the stomach owing to limited swelling at gastric pH, whilst promoting release at the basic pH observed in the colon. SEM images confirmed porous nature of the microgels that facilitate effective drug diffusion through the polymeric matrix. Cytotoxicity studies revealed biocompatibility of hydrogels.Conclusion: These investigations showed that that the controlled drug release and gastro-protective drug delivery of NSAIDS was achieved using CAP-co-poly(HEMA) microgel particles.
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Affiliation(s)
- Muhammad Adnan Zia
- Department of Pharmacy, COMSATS University Islamabad, Abbottabad Campus, Pakistan
| | - Muhammad Sohail
- Department of Pharmacy, COMSATS University Islamabad, Abbottabad Campus, Pakistan
| | | | | | - Shahzeb Khan
- Department of Pharmacy, University of Malakand, KPK, Pakistan.,Division of Molecular Pharmaceutics and Drug Delivery, College of Pharmacy, The University of Texas at Austin, Austin, TX, USA.,Discipline of Pharmaceutical Sciences, School of Health Sciences, UKZN, Durban, South Africa
| | | | - Zahid Hussain
- Department of Pharmaceutics & Pharmaceutical Technology, College of Pharmacy, University of Sharjah, Sharjah, UAE
| | - Mudassir Abbasi
- Department of Pharmacy, COMSATS University Islamabad, Abbottabad Campus, Pakistan
| | - Syed Ahmed Shah
- Department of Pharmacy, COMSATS University Islamabad, Abbottabad Campus, Pakistan
| | - Mubeen Kousar
- Department of Pharmacy, COMSATS University Islamabad, Abbottabad Campus, Pakistan
| | - Naveed Ahmad
- Institute of Pharmaceutical Sciences, Kings College London UK, London, UK
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Liu T, Chen S, Wu X, Han H, Zhang S, Wu P, Su X, Wu T, Yu S, Cai X. Folate-Targeted pH and Redox Dual Stimulation-Responsive Nanocarrier for Codelivering of Docetaxel and TFPI-2 for Nasopharyngeal Carcinoma Therapy. ACS APPLIED BIO MATERIALS 2019; 2:1830-1841. [PMID: 35030673 DOI: 10.1021/acsabm.8b00675] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Due to the increasing incidence of tumor metastasis and multidrug resistance, even though a combined use of chemotherapy and radiotherapy is introduced, the 5-year average survival rate of an advanced nasopharyngeal carcinoma (NPC) patient still remains low. Hence, targeted slow-release anticancer drugs represent a potential therapy for advanced NPC. In this study, pH and redox dual stimulation-responsive folate-targeted folic acid - β-cyclodextrin - hyperbranched poly(amido amine)s (FA-DS-PAAs) nanocarriers for codelivery of docetaxel (DOC) and tissue factor pathway inhibitor 2 (TFPI-2) for NPC therapy are discussed. Physical and chemical properties, in vitro DOC-release properties, folic acid (FA)-targeting, transfection, Western blotting, DOC and TFPI-2 codelivery, therapeutic properties, targeted inhibition, and biocompatibility, in vivo FA-targeting, toxicity, and therapeutic properties of FA-DS-PAAs/DOC/TFPI2 nanoparticles are evaluated. The results indicate that the 200 nm low-toxicity FA-DS-PAAs/DOC/TFPI2 nanoparticles could enhance TFPI2 gene expression, make cancer cells more sensitive to DOC, induce cell apoptosis, and reduce cell invasion more effectively compared with monochemotherapy. With respect to the targeted release of drugs (DOC and TFPI2) in tumor cells, FA-DS-PAAs/DOC/TFPI2 is associated with the slowest growth rate of tumor and the smallest volume of tumor, so this study demonstrates the best synergetic antitumor effect. We anticipate that this study is important because it not only provides a potential new therapy approach for NPC but also paves the preclinical way for potential application of FA-DS-PAAs/DOC/TFPI2.
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Affiliation(s)
- Tao Liu
- Department of Otolaryngology-Head and Neck Surgery, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, No. 106, Zhongshan Second Road, 510080, Guangzhou, P.R. China
| | - Shaohua Chen
- Department of Otolaryngology-Head and Neck Surgery, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, No. 106, Zhongshan Second Road, 510080, Guangzhou, P.R. China
| | - Xidong Wu
- Department of Pharmacology, Jiangxi Testing Center of Medical Instruments, No. 181, Nanjing East Road, 330029, Nanchang, P. R. China
| | - Hong Han
- Department of Otolaryngology-Head and Neck Surgery, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, No. 106, Zhongshan Second Road, 510080, Guangzhou, P.R. China
| | - Siyi Zhang
- Department of Otolaryngology-Head and Neck Surgery, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, No. 106, Zhongshan Second Road, 510080, Guangzhou, P.R. China
| | - Peina Wu
- Department of Otolaryngology-Head and Neck Surgery, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, No. 106, Zhongshan Second Road, 510080, Guangzhou, P.R. China
| | - Xiaomei Su
- Department of Otolaryngology-Head and Neck Surgery, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, No. 106, Zhongshan Second Road, 510080, Guangzhou, P.R. China
| | - Ting Wu
- Department of Light Chemical Engineering, Guangdong Polytechnic, No. 20, Lanshi 2th Road, 528041, Chancheng District, Foshan, P.R. China
| | - Shaobin Yu
- The No. 1 Surgery Department, No. 5 People's Hospital of Foshan, No. 63, Xiqiao Zhen Jiang Pu Dong Road, 528211, Nanhai District, Foshan, Guangdong Province, P.R. China
| | - Xiang Cai
- Department of Light Chemical Engineering, Guangdong Polytechnic, No. 20, Lanshi 2th Road, 528041, Chancheng District, Foshan, P.R. China
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Montero N, Pérez E, Benito M, Teijón C, Teijón JM, Olmo R, Blanco MD. Biocompatibility studies of intravenously administered ionic-crosslinked chitosan-BSA nanoparticles as vehicles for antitumour drugs. Int J Pharm 2018; 554:337-351. [PMID: 30439492 DOI: 10.1016/j.ijpharm.2018.11.027] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Revised: 11/08/2018] [Accepted: 11/11/2018] [Indexed: 01/21/2023]
Abstract
In this study, a new alternative of ionic crosslinked nanoparticles (NPs) based on chitosan (C) and bovine serum albumin (A; BSA) was evaluated as drug delivery system for antitumour compounds (doxorubicin hydrochloride as a model). The different responses to the pH of the medium were determined by the electrostatic interactions induced by each polymeric combination (C50/A50; C80/A20; C20/A80). NPs revealed a nanoscale size (167-392 nm) and a positive net charge (12-26 mV), modulated by doxorubicin (DOX) loading. Drug loading capacity was higher than 5.2 ± 1.8 μgDOX/mgNP (Encapsulation efficiency = 34%), and an initial burst release was followed by a sustained delivery. Cellular uptake assays confirmed the entry of NPs in three human tumor cells (MCF7, T47D and Hela), triggering antioxidant responses (superoxide dismutase, catalase, glutathione reductase and total glutathione content) in those cells. This was also consistent with the decreased in IC50 values observed after the incubation of these cells with C20/A80-DOX and C50/A50-DOX NPs (1.90-3.48 μg/mL) compared with free DOX (2.36-6.025 μg/mL). In vivo results suggested that the selected proportions of chitosan-BSA created nonhemolytic and biocompatible stable NPs at the selected dose of 20 mg/kg. Despite the different formulations, this study demonstrated that these NPs could serve as safe drug carriers in further in vivo investigations.
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Affiliation(s)
- Nuria Montero
- Universidad Complutense de Madrid, Facultad de Medicina, Departamento de Bioquímica y Biología Molecular III, Spain.
| | - Elena Pérez
- Universidad Complutense de Madrid, Facultad de Medicina, Departamento de Bioquímica y Biología Molecular III, Spain; Universidad Europea de Madrid, Faculty of Biomedical and Health Sciences, Departamento de Farmacia, Biotecnología, Nutrición, Óptica y Optometría, Department of Pharmacy, Biotechnology, Nutrition, Optics and Optometry, Spain.
| | - Marta Benito
- Universidad Complutense de Madrid, Facultad de Medicina, Departamento de Bioquímica y Biología Molecular III, Spain; Fundación San Juan de Dios, Centro de CC de la Salud San Rafael, Universidad Antonio de Nebrija, Spain.
| | - César Teijón
- Universidad Complutense de Madrid, Facultad de Enfermería, Fisioterapia y Podología, Departamento de Enfermería, Spain.
| | - José María Teijón
- Universidad Complutense de Madrid, Facultad de Medicina, Departamento de Bioquímica y Biología Molecular III, Spain.
| | - Rosa Olmo
- Universidad Complutense de Madrid, Facultad de Medicina, Departamento de Bioquímica y Biología Molecular III, Spain.
| | - M Dolores Blanco
- Universidad Complutense de Madrid, Facultad de Medicina, Departamento de Bioquímica y Biología Molecular III, Spain.
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12
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Sharma G, Naushad M, Thakur B, Kumar A, Negi P, Saini R, Chahal A, Kumar A, Stadler FJ, Aqil UMH. Sodium Dodecyl Sulphate-Supported Nanocomposite as Drug Carrier System for Controlled Delivery of Ondansetron. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2018; 15:ijerph15030414. [PMID: 29495530 PMCID: PMC5876959 DOI: 10.3390/ijerph15030414] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/29/2017] [Revised: 02/19/2018] [Accepted: 02/23/2018] [Indexed: 12/17/2022]
Abstract
Sodium dodecyl sulphate-supported iron silicophosphate (SDS/FeSP) nanocomposite was successfully fabricated by the co-precipitation method. The SDS/FeSP nanocomposite was investigated as a drug carrier for ondansetron. The cumulative drug release of ondansetron was observed at various pH values for different time intervals, i.e., from 20 min to 48 h. A ranking of the drug release was observed at different pHs; pH 2.2 > saline (pH 5.5) > pH 7.4 > pH 9.4 > distilled water. Maximum release of encapsulated drug was found to be about 45.38% at pH 2.2. The cell viability tests of SDS/FeSP nanocomposite concluded that SDS/FeSP nanocomposite was non-cytotoxic in nature.
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Affiliation(s)
- Gaurav Sharma
- Shenzhen Key Laboratory of Polymer Science and Technology, Guangdong Research Center for Interfacial Engineering of Functional Materials, Nanshan District Key Lab for Biopolymers and Safety Evaluation, College of Materials Science and Engineering, Shenzhen University, Shenzhen 518060, China.
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China.
- School of Chemistry, Shoolini University, Solan 173212, India.
| | - Mu Naushad
- Department of Chemistry, College of Science, Bld.#5, King Saud University, Riyadh 11451, Saudi Arabia.
| | - Bharti Thakur
- School of Chemistry, Shoolini University, Solan 173212, India.
| | - Amit Kumar
- Shenzhen Key Laboratory of Polymer Science and Technology, Guangdong Research Center for Interfacial Engineering of Functional Materials, Nanshan District Key Lab for Biopolymers and Safety Evaluation, College of Materials Science and Engineering, Shenzhen University, Shenzhen 518060, China.
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China.
- School of Chemistry, Shoolini University, Solan 173212, India.
| | - Poonam Negi
- School of Pharmaceutical Sciences, Shoolini University, Solan 173212, India.
| | - Reena Saini
- School of Applied Science and Biotechnology, Shoolini University, Solan 173212, India.
| | - Anterpreet Chahal
- School of Applied Science and Biotechnology, Shoolini University, Solan 173212, India.
| | - Ashok Kumar
- Department of Biotechnology and Bioinformatics, Jaypee University of Information Technology, Waknaghat, Solan 173234, India.
| | - Florian J Stadler
- Shenzhen Key Laboratory of Polymer Science and Technology, Guangdong Research Center for Interfacial Engineering of Functional Materials, Nanshan District Key Lab for Biopolymers and Safety Evaluation, College of Materials Science and Engineering, Shenzhen University, Shenzhen 518060, China.
| | - U M H Aqil
- School of Public Health, 3rd Floor, SRM Medical College and Research, Centre, Kattankulathur 603211, India.
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Gupta S, Gupta MK. Possible role of nanocarriers in drug delivery against cervical cancer. NANO REVIEWS & EXPERIMENTS 2017; 8:1335567. [PMID: 30410707 PMCID: PMC6167030 DOI: 10.1080/20022727.2017.1335567] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/17/2017] [Accepted: 05/20/2017] [Indexed: 02/08/2023]
Abstract
Introduction: Cervical cancer is the second most common cancer and the largest cancer killer among women in most developing countries including India. Although, various drugs have been developed for cervical cancer, treatment with these drugs often results in a number of undesirable side effects, toxicity and multidrug resistance (MDR). Also, the outcomes for cervical cancer patients remain poor after surgery and chemo radiation. Methods: A literature search (for drugs and delivery systems against cervical cancer) was performed on PubMed and through Google. The present review discuss about various methods including its current conventional treatment with special reference to recent advances in delivery systems encapsulating various anticancer drugs and natural plant products for targeting towards cervical cancer. The role of photothermal therapy, gene therapy and radiation therapy against cervical cancer is also discussed. Results: Systemic/targeted drug delivery systems including liposomes, nanoparticles, hydrogels, dendrimers etc. and localized drug delivery systems like cervical patches, films, rings etc. are safer than the conventional chemotherapy which has further been proved by the several drug delivery systems undergoing clinical trials. Conclusion: Novel approaches for the aggressive treatment of cervical cancer will optimistically result in decreased side effects as well as toxicity, frequency of administration of existing drugs, to overcome MDR and to increase the survival rates.
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Affiliation(s)
- Swati Gupta
- B. S. Anangpuria Institute of Pharmacy, Pt B. D. Sharma University of Health Sciences, Faridabad, India
| | - Manish K. Gupta
- TERI-Deakin Nano Biotechnology Centre, The Energy and Resources Institute, Gurugram, India
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Polymeric Hydrogels as Technology Platform for Drug Delivery Applications. Gels 2017; 3:gels3030025. [PMID: 30920522 PMCID: PMC6318675 DOI: 10.3390/gels3030025] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2017] [Revised: 06/27/2017] [Accepted: 06/29/2017] [Indexed: 12/27/2022] Open
Abstract
Hydrogels have become key players in the field of drug delivery owing to their great versatility in terms of composition and adjustability to various administration routes, from parenteral (e.g., intravenous) to non-parenteral (e.g., oral, topical) ones. In addition, based on the envisioned application, the design of bioadhesive or mucoadhesive hydrogels with prolonged residence time in the administration site may be beneficial. For example, hydrogels are used as wound dressings and patches for local and systemic therapy. In a similar way, they can be applied in the vaginal tract for local treatment or in the nasal cavity for a similar goal or, conversely, to target the central nervous system by the nose-to-brain pathway. Overall, hydrogels have demonstrated outstanding capabilities to ensure patient compliance, while achieving long-term therapeutic effects. The present work overviews the most relevant and recent applications of hydrogels in drug delivery with special emphasis on mucosal routes.
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Ramasamy T, Ruttala HB, Gupta B, Poudel BK, Choi HG, Yong CS, Kim JO. Smart chemistry-based nanosized drug delivery systems for systemic applications: A comprehensive review. J Control Release 2017; 258:226-253. [DOI: 10.1016/j.jconrel.2017.04.043] [Citation(s) in RCA: 246] [Impact Index Per Article: 35.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2016] [Revised: 04/28/2017] [Accepted: 04/30/2017] [Indexed: 12/21/2022]
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Ray Chowdhuri A, Bhattacharya D, Sahu SK. Magnetic nanoscale metal organic frameworks for potential targeted anticancer drug delivery, imaging and as an MRI contrast agent. Dalton Trans 2016; 45:2963-73. [PMID: 26754449 DOI: 10.1039/c5dt03736k] [Citation(s) in RCA: 158] [Impact Index Per Article: 19.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The development of a novel multifunctional porous nanoplatform for targeted anticancer drug delivery with cell imaging and magnetic resonance imaging has been realised in the current work. Here we have developed a magnetic nanoscale metal organic frameworks (NMOF) for potential targeted drug delivery. These magnetic NMOFs were fabricated by incorporation of Fe3O4 nanoparticles into porous isoreticular metal organic frameworks (IRMOF-3). To achieve targeted drug delivery towards cancer cells specifically, folic acid was conjugated to the NMOF surface. Then, the fluorescent molecule rhodamine B isothiocyanate (RITC) was conjugated to the NMOFs for biological imaging applications. The synthesized magnetic NMOFs were fully characterised by FTIR, powder XRD, XPS, SQUID, TGA, TEM, FESEM, and DLS. The synthesized magnetic NMOFs were observed to be smaller than 100 nm and were found to be nontoxic towards human cervix adenocarcinoma (HeLa) and murine fibroblast (NIH3T3) cells according to cell viability assays. The cancer chemotherapy drug paclitaxel was conjugated to the magnetic NMOFs through hydrophobic interactions with a relatively high loading capacity. Moreover, these folic acid-conjugated magnetic NMOFs showed stronger T2-weighted MRI contrast towards the cancer cells, justifying their possible significance in imaging.
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Wang F, Yang S, Hua D, Yuan J, Huang C, Gao Q. A novel preparation method of paclitaxcel-loaded folate-modified chitosan microparticles and in vitro evaluation. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2016; 27:276-89. [PMID: 26578298 DOI: 10.1080/09205063.2015.1121366] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
A new chitosan microparticles loading paclitaxel (PTX) for application as an oral delivery system were developed using a novel double emulsion crosslinking method. To improve the targeted effect, folic acid (FA) was introduced onto the surface of microparticles using chemical method. The method was based on Schiff reaction between amino group of chitosan and carboxyl group of FA, and folate-chitosan (FA-CS) conjugate was characterized using infrared spectrum analysis (FT-IR), and the microparticles were named as FA-CS-PTX/MPs. FA-CS-PTX/MPs had larger size of average diameter 223.6 nm, while PTX-loaded chitosan microparticles (CS-PTX/MPs) had 179.1 nm average diameter. The zeta potential of CS-PTX/MPs and FA-CS-PTX/MPs was 22.3 and 33.1 mV, respectively. SEM and TEM showed both the two microparticles had well-defined spherical structure. The in vitro drug release was studied under different pH conditions, and a two-phase kinetics model was found to be the most adequate kinetic model. Furthermore, the cytotoxicity activities of drug-carriers against L929 cells and the cellular uptake of PTX-loaded microparticles against HepG2 cells were investigated. Results demonstrated that FA-CS-PTX/MPs might be a promising drug carrier for promoting PTX cellular uptake and could be used as a potential tumor-targeted drug vector.
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Affiliation(s)
- Fang Wang
- a College of Chemical Engineering, Nanjing Forestry University , Nanjing , P.R. China.,b Jiangsu Key Lab of Biomass-based Green Fuels and Chemicals , Nanjing , P.R.China
| | - Siqian Yang
- a College of Chemical Engineering, Nanjing Forestry University , Nanjing , P.R. China
| | - Dawei Hua
- a College of Chemical Engineering, Nanjing Forestry University , Nanjing , P.R. China.,b Jiangsu Key Lab of Biomass-based Green Fuels and Chemicals , Nanjing , P.R.China
| | - Jian Yuan
- a College of Chemical Engineering, Nanjing Forestry University , Nanjing , P.R. China
| | - Chaobo Huang
- a College of Chemical Engineering, Nanjing Forestry University , Nanjing , P.R. China.,b Jiangsu Key Lab of Biomass-based Green Fuels and Chemicals , Nanjing , P.R.China
| | - Qinwei Gao
- a College of Chemical Engineering, Nanjing Forestry University , Nanjing , P.R. China.,b Jiangsu Key Lab of Biomass-based Green Fuels and Chemicals , Nanjing , P.R.China
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Pérez E, Olmo R, Teijón C, Muñíz E, Montero N, Teijón JM, Blanco MD. Biocompatibility evaluation of pH and glutathione-responsive nanohydrogels after intravenous administration. Colloids Surf B Biointerfaces 2015; 136:222-31. [DOI: 10.1016/j.colsurfb.2015.09.017] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2015] [Revised: 08/21/2015] [Accepted: 09/10/2015] [Indexed: 12/13/2022]
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Wei W, Qi X, Liu Y, Li J, Hu X, Zuo G, Zhang J, Dong W. Synthesis and characterization of a novel pH-thermo dual responsive hydrogel based on salecan and poly( N , N -diethylacrylamide-co-methacrylic acid). Colloids Surf B Biointerfaces 2015; 136:1182-92. [DOI: 10.1016/j.colsurfb.2015.11.007] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2015] [Revised: 09/25/2015] [Accepted: 11/04/2015] [Indexed: 11/24/2022]
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Yin S, Huai J, Chen X, Yang Y, Zhang X, Gan Y, Wang G, Gu X, Li J. Intracellular delivery and antitumor effects of a redox-responsive polymeric paclitaxel conjugate based on hyaluronic acid. Acta Biomater 2015; 26:274-85. [PMID: 26300335 DOI: 10.1016/j.actbio.2015.08.029] [Citation(s) in RCA: 107] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2015] [Revised: 07/17/2015] [Accepted: 08/19/2015] [Indexed: 11/26/2022]
Abstract
Polymer-drug conjugates have demonstrated application potentials in optimizing chemotherapeutics. In this study a new bioconjugate, HA-ss-PTX, was designed and synthesized with cooperative dual characteristics of active tumor targeting and selective intracellular drug release. Paclitaxel (PTX) was covalently attached to hyaluronic acid (HA) with various sizes (MW 9.5, 35, 770 kDa); a cross-linker containing disulfide bond was also used to shield drug leakage in blood circulation and to achieve rapid drug release in tumor cells in response to glutathione. Incorporation of HA to the conjugate enhanced the capabilities of drug loading, intracellular endocytosis and tumor targeting of micelles in comparison to mPEG. HA molecular weight showed significant effect on properties and antitumor efficacy of the synthesized conjugates. Intracellular uptake of HA-ss-PTX toward MCF-7 cells was mediated by CD44-caveolae-mediated endocytosis. Compared to Taxol and mPEG-ss-PTX, HA9.5-ss-PTX demonstrated improved tumor growth inhibition in vivo with a TIR of 83.27 ± 5.20%. It was concluded that HA9.5-ss-PTX achieved rapid intracellular release of PTX and enhanced its therapeutic efficacy, thus providing a platform for specific drug targeting and controlled intracellular release in chemotherapeutics. STATEMENT OF SIGNIFICANCE Polymer-drug conjugates, promising nanomedicines, still face some technical challenges including a lack of specific targeting and rapid intracellular drug release at the target site. In this manuscript we designed and constructed a novel bioconjugate HA-ss-PTX, which possessed coordinated dual characteristics of active tumor targeting and selective intracellular drug release. Redox-responsive disulfide bond was introduced to the conjugate to shield drug leakage in blood circulation and to achieve rapid drug release at tumor site in response to reductant like glutathione. Paclitaxel was selected as a model drug to be covalently attached to hyaluronic acid (HA) with various sizes to elucidate the structure-activity relationship and to address whether HA could substitute PEG as a carrier for polymeric conjugates. Based on a series of in vitro and in vivo experiments, HA-ss-PTX performed well in drug loading, cellular internalization, tumor targeting by entering tumor cells via CD44-caveolae-mediated endocytosis and rapidly release drug at target in the presence of GSH. One of the key issues in clinical oncology is to enhance drug delivery efficacy while minimizing side effects. The study indicated that this new polymeric conjugate system would be useful in delivering anticancer agents to improve therapeutic efficacy and to minimize adverse effects, thus providing a platform for specific drug targeting and controlled intracellular release in chemotherapeutics.
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Zhou T, Zhao X, Liu L, Liu P. Preparation of biodegradable PEGylated pH/reduction dual-stimuli responsive nanohydrogels for controlled release of an anti-cancer drug. NANOSCALE 2015; 7:12051-12060. [PMID: 26118938 DOI: 10.1039/c5nr00758e] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
A facile and efficient method was developed to prepare the monodisperse biodegradable PEGylated pH and reduction dual-stimuli sensitive poly[methacrylic acid-co-poly(ethylene glycol) methyl ether methacrylate-co-N,N-bis(acryloyl)cystamine] (PMPB) nanohydrogels with dried particle size below 200 nm via one-step distillation precipitation polymerization as a drug delivery system (DDS) for the controlled release of a wide-spectrum anti-cancer drug, doxorubicin hydrochloride (DOX). Under normal physiological media, the nanohydrogels possessed high drug encapsulation efficiency (more than 96%) within 48 h and exhibited good stability with a trifle premature drug release. However, rapid DOX release was achieved at lower pH or in the presence of reductive reagent glutathione (GSH) with a cumulative release of more than 85% within 30 h. Furthermore, the nanohydrogels manifested nontoxicity on HepG2 cells at a concentration of 10 μg mL(-1) or lower. Based on the excellent characteristics of the nanohydrogels, such as low toxicity, impressive biodegradability, sharp dual responsiveness, adequate drug loading capacity and a high drug encapsulation efficiency, they were supposed to have potential application in the area of cancer therapy.
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Affiliation(s)
- Tingting Zhou
- State Key Laboratory of Applied Organic Chemistry and Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China.
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Improved antitumor effect of paclitaxel administered in vivo as pH and glutathione-sensitive nanohydrogels. Int J Pharm 2015; 492:10-9. [PMID: 26160666 DOI: 10.1016/j.ijpharm.2015.07.003] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2015] [Revised: 06/29/2015] [Accepted: 07/01/2015] [Indexed: 01/01/2023]
Abstract
Most antitumor drugs usually affect not only rapidly dividing cells, such as those in tumors, but also highly proliferative cells in normal tissues. This nonspecific drawback could be successfully solved by using nanocarriers as controlled drug delivery systems. In this work, pH and redox-responsive nanohydrogels (NG) based on N-isopropylacrilamide (NIPA), N-hydroxyethyl acrylamide (HEEA) 2-acrylamidoethyl carbamate (2AAECM) and N,N'-cystaminebisacrylamide (CBA) as crosslinker were evaluated as bioreducible paclitaxel (PTX) nanocarriers for improving the accumulation of the drug within the tumor tissue and avoiding its conventional side effects. A single dose of PTX solution, unloaded-NHA 80/15/5CBA NG and PTX-loaded NHA 80/15/5-CBA NG (30 mg/kg PTX equivalent) were subcutaneously injected in female athymic nude mice bearing HeLa human tumor xenografts. PTX-loaded nanohydrogels showed higher antitumor activity than free PTX, as tumor evolution and Ki67 detection demonstrated. Histological tumor images revealed a higher content of defective mitotic figures and apoptotic bodies in PTX- treated tumors than in control or unloaded NG treated tumor samples. Nanohydrogels injection did not change any biochemical blood parameters, which means no liver or kidney damage after NG injection. However, differences in antioxidant defenses in MPS systems (liver, kidney and spleen) were observed among treatments, which may indicate an oxidative stress response after PTX injection.
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Wang Z, Xia J, Cai F, Zhang F, Yang M, Bi S, Gui R, Li Y, Xia Y. Aptamer-functionalized hydrogel as effective anti-cancer drugs delivery agents. Colloids Surf B Biointerfaces 2015; 134:40-6. [PMID: 26142627 DOI: 10.1016/j.colsurfb.2015.06.031] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2015] [Revised: 05/02/2015] [Accepted: 06/12/2015] [Indexed: 10/23/2022]
Abstract
An aptamer-functionalized hydrogel has been developed, which can be regulated by the AS1411 aptamer with the sol-gel conversion. Also the hydrogel can be further utilized for the controlled encapsulation and release of the cancer drugs. Specially, the AS1411 initiates the hybridization of acrydite-modified oligonucleotides to form the hydrogels and the presence of the target protein nucleolin leads the gel to dissolve as a result of reducing the cross-linking density by competitive target-aptamer binding. Based on the rheology of hydrogels, it is possible to utilize this material for storing and releasing molecules. In this research, the cancer drug doxorubicin is encapsulated inside the gel during the formation of the hydrogel and then released in the presence of nucleolin. Further experiments are carried out to prove the specific recognition of target matter. In vitro researches confirm that the aptamer-functionalized hydrogels can be used as drug carriers in targeted therapy and other biotechnological applications.
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Affiliation(s)
- Zonghua Wang
- Collaborative Innovation Center for Marine Biomass Fiber Materials and Textiles, Laboratory of Fiber Materials and Modern Textile, The Growing Base for State Key Laboratory, College of Chemical Science and Engineering, Shandong Sino-Japanese Center for Collaborative Research of Carbon Nanomaterials, Qingdao University, Ningxia Road 308, Qingdao 266071, Shandong, China.
| | - Jianfei Xia
- Collaborative Innovation Center for Marine Biomass Fiber Materials and Textiles, Laboratory of Fiber Materials and Modern Textile, The Growing Base for State Key Laboratory, College of Chemical Science and Engineering, Shandong Sino-Japanese Center for Collaborative Research of Carbon Nanomaterials, Qingdao University, Ningxia Road 308, Qingdao 266071, Shandong, China
| | - Feng Cai
- Collaborative Innovation Center for Marine Biomass Fiber Materials and Textiles, Laboratory of Fiber Materials and Modern Textile, The Growing Base for State Key Laboratory, College of Chemical Science and Engineering, Shandong Sino-Japanese Center for Collaborative Research of Carbon Nanomaterials, Qingdao University, Ningxia Road 308, Qingdao 266071, Shandong, China
| | - Feifei Zhang
- Collaborative Innovation Center for Marine Biomass Fiber Materials and Textiles, Laboratory of Fiber Materials and Modern Textile, The Growing Base for State Key Laboratory, College of Chemical Science and Engineering, Shandong Sino-Japanese Center for Collaborative Research of Carbon Nanomaterials, Qingdao University, Ningxia Road 308, Qingdao 266071, Shandong, China
| | - Min Yang
- Collaborative Innovation Center for Marine Biomass Fiber Materials and Textiles, Laboratory of Fiber Materials and Modern Textile, The Growing Base for State Key Laboratory, College of Chemical Science and Engineering, Shandong Sino-Japanese Center for Collaborative Research of Carbon Nanomaterials, Qingdao University, Ningxia Road 308, Qingdao 266071, Shandong, China
| | - Sai Bi
- Collaborative Innovation Center for Marine Biomass Fiber Materials and Textiles, Laboratory of Fiber Materials and Modern Textile, The Growing Base for State Key Laboratory, College of Chemical Science and Engineering, Shandong Sino-Japanese Center for Collaborative Research of Carbon Nanomaterials, Qingdao University, Ningxia Road 308, Qingdao 266071, Shandong, China
| | - Rijun Gui
- Collaborative Innovation Center for Marine Biomass Fiber Materials and Textiles, Laboratory of Fiber Materials and Modern Textile, The Growing Base for State Key Laboratory, College of Chemical Science and Engineering, Shandong Sino-Japanese Center for Collaborative Research of Carbon Nanomaterials, Qingdao University, Ningxia Road 308, Qingdao 266071, Shandong, China
| | - Yanhui Li
- Collaborative Innovation Center for Marine Biomass Fiber Materials and Textiles, Laboratory of Fiber Materials and Modern Textile, The Growing Base for State Key Laboratory, College of Chemical Science and Engineering, Shandong Sino-Japanese Center for Collaborative Research of Carbon Nanomaterials, Qingdao University, Ningxia Road 308, Qingdao 266071, Shandong, China
| | - Yanzhi Xia
- Collaborative Innovation Center for Marine Biomass Fiber Materials and Textiles, Laboratory of Fiber Materials and Modern Textile, The Growing Base for State Key Laboratory, College of Chemical Science and Engineering, Shandong Sino-Japanese Center for Collaborative Research of Carbon Nanomaterials, Qingdao University, Ningxia Road 308, Qingdao 266071, Shandong, China
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Chen Y, Tang C, Zhang J, Gong M, Su B, Qiu F. Self-assembling surfactant-like peptide A6K as potential delivery system for hydrophobic drugs. Int J Nanomedicine 2015; 10:847-58. [PMID: 25670898 PMCID: PMC4315539 DOI: 10.2147/ijn.s71696] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Background Finding a suitable delivery system to improve the water solubility of hydrophobic drugs is a critical challenge in the development of effective formulations. In this study, we used A6K, a self-assembling surfactant-like peptide, as a carrier to encapsulate and deliver hydrophobic pyrene. Methods Pyrene was mixed with A6K by magnetic stirring to form a suspension. Confocal laser scanning microscopy, transmission electron microscopy, dynamic light scattering, atomic force microscopy, fluorescence, and cell uptake measurements were carried out to study the features and stability of the nanostructures, the state and content of pyrene, as well as the pyrene release profile. Results The suspension formed contained pyrene monomers trapped in the hydrophobic cores of the micellar nanofibers formed by A6K, as well as nanosized pyrene crystals wrapped up and stabilized by the nanofibers. The two different encapsulation methods greatly increased the concentration of pyrene in the suspension, and formation of pyrene crystals wrapped up by A6K nanofibers might be the major contributor to this effect. Furthermore, the suspension system could readily release and transfer pyrene into living cells. Conclusion A6K could be further exploited as a promising delivery system for hydrophobic drugs.
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Affiliation(s)
- Yongzhu Chen
- Periodical Press, Sichuan University, Chengdu, People's Republic of China
| | - Chengkang Tang
- Core Facility of West China Hospital, Sichuan University, Chengdu, People's Republic of China
| | - Jie Zhang
- Core Facility of West China Hospital, Sichuan University, Chengdu, People's Republic of China
| | - Meng Gong
- Laboratory of Endocrinology and Metabolism, West China Hospital, Sichuan University, Chengdu, People's Republic of China
| | - Bo Su
- Core Facility of West China Hospital, Sichuan University, Chengdu, People's Republic of China
| | - Feng Qiu
- Laboratory of Anaesthesia and Critical Care Medicine, Translational Neuroscience Centre, West China Hospital, Sichuan University, Chengdu, People's Republic of China
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Chen L, Xue Y, Xia X, Song M, Huang J, Zhang H, Yu B, Long S, Liu Y, Liu L, Huang S, Yu F. A redox stimuli-responsive superparamagnetic nanogel with chemically anchored DOX for enhanced anticancer efficacy and low systemic adverse effects. J Mater Chem B 2015; 3:8949-8962. [DOI: 10.1039/c5tb01851j] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
DOX anchored via disulfide onto alginate coated superparamagnetic nanoparticles promised high efficacy with low systemic adverse effects.
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Yuan F, Wang S, Chen G, Tu K, Jiang H, Wang LQ. Novel chitosan-based pH-sensitive and disintegrable polyelectrolyte nanogels. Colloids Surf B Biointerfaces 2014; 122:194-201. [DOI: 10.1016/j.colsurfb.2014.06.042] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2014] [Revised: 06/20/2014] [Accepted: 06/21/2014] [Indexed: 12/23/2022]
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