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Zuo S, Liu T, Li L, Xu H, Guo J, Wang Q, Yang Y, He Z, Sun J, Sun B. Tetrasulfide bond boosts the anti-tumor efficacy of dimeric prodrug nanoassemblies. Cell Rep Med 2024; 5:101432. [PMID: 38387464 PMCID: PMC10982979 DOI: 10.1016/j.xcrm.2024.101432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 12/11/2023] [Accepted: 01/25/2024] [Indexed: 02/24/2024]
Abstract
Dimeric prodrug nanoassemblies (DPNAs) stand out as promising strategies for improving the efficiency and safety of chemotherapeutic drugs. The success of trisulfide bonds (-SSS-) in DPNAs makes polysulfide bonds a worthwhile focus. Here, we explore the comprehensive role of tetrasulfide bonds (-SSSS-) in constructing superior DPNAs. Compared to trisulfide and disulfide bonds, tetrasulfide bonds endow DPNAs with superlative self-assembly stability, prolonged blood circulation, and high tumor accumulation. Notably, the ultra-high reduction responsivity of tetrasulfide bonds make DPNAs a highly selective "tumor bomb" that can be ignited by endogenous reducing agents in tumor cells. Furthermore, we present an "add fuel to the flames" strategy to intensify the reductive stress at tumor sites by replenishing exogenous reducing agents, making considerable progress in selective tumor inhibition. This work elucidates the crucial role of tetrasulfide bonds in establishing intelligent DPNAs, alongside the combination methodology, propelling DPNAs to new heights in potent cancer therapy.
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Affiliation(s)
- Shiyi Zuo
- Department of Pharmaceutics, Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang 110016, P.R. China
| | - Tian Liu
- Department of Pharmaceutics, Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang 110016, P.R. China
| | - Lingxiao Li
- Department of Pharmaceutics, Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang 110016, P.R. China
| | - Hezhen Xu
- Department of Pharmaceutics, Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang 110016, P.R. China
| | - Jiayu Guo
- Department of Pharmaceutics, Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang 110016, P.R. China
| | - Qing Wang
- Department of Pharmaceutics, Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang 110016, P.R. China
| | - Yinxian Yang
- Department of Pharmaceutics, Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang 110016, P.R. China
| | - Zhonggui He
- Department of Pharmaceutics, Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang 110016, P.R. China
| | - Jin Sun
- Department of Pharmaceutics, Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang 110016, P.R. China.
| | - Bingjun Sun
- Department of Pharmaceutics, Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang 110016, P.R. China.
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Mei H, Cai S, Huang D, Gao H, Cao J, He B. Carrier-free nanodrugs with efficient drug delivery and release for cancer therapy: From intrinsic physicochemical properties to external modification. Bioact Mater 2022; 8:220-240. [PMID: 34541398 PMCID: PMC8424425 DOI: 10.1016/j.bioactmat.2021.06.035] [Citation(s) in RCA: 66] [Impact Index Per Article: 33.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2021] [Revised: 06/23/2021] [Accepted: 06/30/2021] [Indexed: 12/11/2022] Open
Abstract
The considerable development of carrier-free nanodrugs has been achieved due to their high drug-loading capability, simple preparation method, and offering "all-in-one" functional platform features. However, the native defects of carrier-free nanodrugs limit their delivery and release behavior throughout the in vivo journey, which significantly compromise the therapeutic efficacy and hinder their further development in cancer treatment. In this review, we summarized and discussed the recent strategies to enhance drug delivery and release of carrier-free nanodrugs for improved cancer therapy, including optimizing the intrinsic physicochemical properties and external modification. Finally, the corresponding challenges that carrier-free nanodrugs faced are discussed and the future perspectives for its application are presented. We hope this review will provide constructive information for the rational design of more effective carrier-free nanodrugs to advance therapeutic treatment.
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Affiliation(s)
- Heng Mei
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China
| | - Shengsheng Cai
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China
| | - Dennis Huang
- Department of Biomedical Engineering, The University of Texas at Austin, Austin, TX, 78731, USA
| | - Huile Gao
- West China School of Pharmacy, Sichuan University, Chengdu, 610064, China
| | - Jun Cao
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China
| | - Bin He
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China
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Mei H, Li J, Cai S, Zhang X, Shi W, Zhu H, Cao J, He B. Mitochondria-acting carrier-free nanoplatform self-assembled by α-tocopheryl succinate carrying cisplatin for combinational tumor therapy. Regen Biomater 2021; 8:rbab029. [PMID: 34221448 PMCID: PMC8242230 DOI: 10.1093/rb/rbab029] [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: 04/16/2021] [Revised: 05/14/2021] [Accepted: 05/16/2021] [Indexed: 12/24/2022] Open
Abstract
Unsatisfactory drug loading capability, potential toxicity of the inert carrier and the limited therapeutic effect of a single chemotherapy drug are all vital inhibitory factors of carrier-assisted drug delivery systems for chemotherapy. To address the above obstacles, a series of carrier-free nanoplatforms self-assembled by dual-drug conjugates was constructed to reinforce chemotherapy against tumors by simultaneously disrupting intratumoral DNA activity and inhibiting mitochondria function. In this nanoplatform, the mitochondria-targeting small-molecular drug, α-tocopheryl succinate (TOS), firstly self-assembled into nanoparticles, which then were used as the carrier to conjugate cisplatin (CDDP). Systematic characterization results showed that this nanoplatform exhibited suitable particle size and a negative surface charge with good stability in physicochemical environments, as well as pH-sensitive drug release and efficient cellular uptake. Due to the combined effects of reactive oxygen species (ROS) generation by TOS and DNA damage by CDDP, the developed nanoplatform could induce mitochondrial dysfunction and elevated cell apoptosis, resulting in highly efficient anti-tumor outcomes in vitro. Collectively, the combined design principles adopted for carrier-free nanodrugs construction in this study aimed at targeting different intracellular organelles for facilitating ROS production and DNA disruption can be extended to other carrier-free nanodrugs-dependent therapeutic systems.
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Affiliation(s)
- Heng Mei
- National Engineering Research Center for Biomaterials, Sichuan University, No. 29 Wangjiang Road, Chengdu 610064, China
| | - Jing Li
- School of Chemical Engineering, Sichuan University, No. 24 South Section 1, Yihuan Road, Chengdu 610065, China
| | - Shengsheng Cai
- National Engineering Research Center for Biomaterials, Sichuan University, No. 29 Wangjiang Road, Chengdu 610064, China
| | - Xuequan Zhang
- National Engineering Research Center for Biomaterials, Sichuan University, No. 29 Wangjiang Road, Chengdu 610064, China
| | - Wenqiang Shi
- National Engineering Research Center for Biomaterials, Sichuan University, No. 29 Wangjiang Road, Chengdu 610064, China
| | - Hai Zhu
- National Engineering Research Center for Biomaterials, Sichuan University, No. 29 Wangjiang Road, Chengdu 610064, China
| | - Jun Cao
- National Engineering Research Center for Biomaterials, Sichuan University, No. 29 Wangjiang Road, Chengdu 610064, China
| | - Bin He
- National Engineering Research Center for Biomaterials, Sichuan University, No. 29 Wangjiang Road, Chengdu 610064, China
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4
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Kubisa P, Lapienis G, Biela T. Star‐shaped copolymers with
PLA
–
PEG
arms and their potential applications as biomedical materials. POLYM ADVAN TECHNOL 2021. [DOI: 10.1002/pat.5297] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Przemyslaw Kubisa
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences Lodz Poland
| | - Grzegorz Lapienis
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences Lodz Poland
| | - Tadeusz Biela
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences Lodz Poland
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Wang T, Luo H, Jing X, Yang J, Huo M, Wang Y. Synthesis of Fluorescent Carbon Dots and Their Application in Ascorbic Acid Detection. Molecules 2021; 26:1246. [PMID: 33669142 PMCID: PMC7956759 DOI: 10.3390/molecules26051246] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Revised: 02/21/2021] [Accepted: 02/22/2021] [Indexed: 11/16/2022] Open
Abstract
Water-soluble fluorescent carbon dots (CDs) were synthesized by a hydrothermal method using citric acid as the carbon source and ethylenediamine as the nitrogen source. The repeated and scale-up synthetic experiments were carried out to explore the feasibility of macroscopic preparation of CDs. The CDs/Fe3+ composite was prepared by the interaction of the CDs solution and Fe3+ solution. The optical properties, pH dependence and stability behavior of CDs or the CDs/Fe3+ composite were studied by ultraviolet spectroscopy and fluorescence spectroscopy. Following the principles of fluorescence quenching after the addition of Fe3+ and then the fluorescence recovery after the addition of asorbic acid, the fluorescence intensity of the carbon dots was measured at λex = 360 nm, λem = 460 nm. The content of ascorbic acid was calculated by quantitative analysis of the changing fluorescence intensity. The CDs/Fe3+ composite was applied to the determination of different active molecules, and it was found that the composite had specific recognition of ascorbic acid and showed an excellent linear relationship in 5.0-350.0 μmol·L-1. Moreover, the detection limit was 3.11 μmol·L-1. Satisfactory results were achieved when the method was applied to the ascorbic acid determination in jujube fruit. The fluorescent carbon dots composites prepared in this study may have broad application prospects in a rapid, sensitive and trace determination of ascorbic acid content during food processing.
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Affiliation(s)
- Tengfei Wang
- College of Food Science and Engineering, Shanxi Agricultural University, Taigu 030801, Shanxi, China; (T.W.); (H.L.); (X.J.); (J.Y.)
| | - Hui Luo
- College of Food Science and Engineering, Shanxi Agricultural University, Taigu 030801, Shanxi, China; (T.W.); (H.L.); (X.J.); (J.Y.)
| | - Xu Jing
- College of Food Science and Engineering, Shanxi Agricultural University, Taigu 030801, Shanxi, China; (T.W.); (H.L.); (X.J.); (J.Y.)
| | - Jiali Yang
- College of Food Science and Engineering, Shanxi Agricultural University, Taigu 030801, Shanxi, China; (T.W.); (H.L.); (X.J.); (J.Y.)
| | - Meijun Huo
- College of Veterinary Medicine, Shanxi Agricultural University, Taigu 030801, Shanxi, China
| | - Yu Wang
- College of Food Science and Engineering, Shanxi Agricultural University, Taigu 030801, Shanxi, China; (T.W.); (H.L.); (X.J.); (J.Y.)
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He Y, Lei L, Cao J, Yang X, Cai S, Tong F, Huang D, Mei H, Luo K, Gao H, He B, Peppas NA. A combinational chemo-immune therapy using an enzyme-sensitive nanoplatform for dual-drug delivery to specific sites by cascade targeting. SCIENCE ADVANCES 2021; 7:7/6/eaba0776. [PMID: 33547067 PMCID: PMC7864565 DOI: 10.1126/sciadv.aba0776] [Citation(s) in RCA: 66] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/03/2019] [Accepted: 12/21/2020] [Indexed: 02/05/2023]
Abstract
Nanoparticle-based drug delivery faces challenges from the imprecise targeted delivery and the low bioavailability of drugs due to complex biological barriers. Here, we designed cascade-targeting, dual drug–loaded, core-shell nanoparticles (DLTPT) consisting of CD44-targeting hyaluronic acid shells decorated with doxorubicin (HA-DOX) and mitochondria-targeting triphenylphosphonium derivative nanoparticle cores loaded with lonidamine (LND) dimers (LTPT). DLTPT displayed prolonged blood circulation time and efficiently accumulated at the tumor site due to the tumor-homing effect and negatively charged hyaluronic acid. Subsequently, the HA-DOX shell was degraded by extracellular hyaluronidase, resulting in decreased particle size and negative-to-positive charge reversal, which would increase tumor penetration and internalization. The degradation of HA-DOX further accelerated the release of DOX and exposed the positively charged LTPT core for rapid endosomal escape and mitochondria-targeted delivery of LND. Notably, when DLTPT was used in combination with anti–PD-L1, the tumor growth was inhibited, which induced immune response against tumor metastasis.
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Affiliation(s)
- Yanmei He
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, P. R. China
| | - Lei Lei
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, P. R. China.,West China School of Pharmacy, Sichuan University, Chengdu 610041, P. R. China
| | - Jun Cao
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, P. R. China. .,Department of Biomedical Engineering, The University of Texas at Austin, Austin, TX 78731, USA
| | - Xiaotong Yang
- West China School of Pharmacy, Sichuan University, Chengdu 610041, P. R. China
| | - Shengsheng Cai
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, P. R. China
| | - Fan Tong
- West China School of Pharmacy, Sichuan University, Chengdu 610041, P. R. China
| | - Dennis Huang
- Department of Biomedical Engineering, The University of Texas at Austin, Austin, TX 78731, USA
| | - Heng Mei
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, P. R. China
| | - Kui Luo
- Huaxi MR Research Center (HMRRC), Functional and Molecular Imaging Key Laboratory of Sichuan Province, Department of Radiology, West China Hospital, Sichuan University, Chengdu 610041, P. R. China
| | - Huile Gao
- West China School of Pharmacy, Sichuan University, Chengdu 610041, P. R. China.
| | - Bin He
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, P. R. China
| | - Nicholas A Peppas
- Department of Biomedical Engineering, The University of Texas at Austin, Austin, TX 78731, USA. .,Division of Molecular Pharmaceutics and Drug Delivery, College of Pharmacy, The University of Texas at Austin, Austin, TX 78731, USA
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7
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Advanced engineered nanoparticulate platforms to address key biological barriers for delivering chemotherapeutic agents to target sites. Adv Drug Deliv Rev 2020; 167:170-188. [PMID: 32622022 DOI: 10.1016/j.addr.2020.06.030] [Citation(s) in RCA: 99] [Impact Index Per Article: 24.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 06/25/2020] [Accepted: 06/29/2020] [Indexed: 02/07/2023]
Abstract
The widespread development of nanocarriers to deliver chemotherapeutics to specific tumor sites has been motivated by the lack of selective targeting during chemotherapy inducing serious side effects and low therapeutic efficacy. The utmost challenge in targeted cancer therapies is the ineffective drug delivery system, in which the drug-loaded nanocarriers are hindered by multiple complex biological barriers that compromise the therapeutic efficacy. Despite considerable progress engineering novel nanoplatforms for the delivery of chemotherapeutics, there has been limited success in a clinical setting. In this review, we identify and analyze design strategies for improved therapeutic efficacy and unique properties of nanoplatforms, including liposomes, polymeric micelles, nanogels, and dendrimers. We provide a comprehensive and integral description of key biological barriers that nanoplatforms are exposed to during their in vivo journey and discuss associated strategies to overcome these barriers based on the latest research and information available in the field. We expect this review to provide constructive information for the rational design of more effective nanoplatforms to advance precision therapies and accelerate their clinical translation.
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8
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Niu H, Li J, Cai Q, Wang X, Luo F, Gong J, Qiang Z, Ren J. Molecular Stereocomplexation for Enhancing the Stability of Nanoparticles Encapsulated in Polymeric Micelles for Magnetic Resonance Imaging. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:13881-13889. [PMID: 33170710 DOI: 10.1021/acs.langmuir.0c02281] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
A generalizable approach for improving the stability of polylactide-based (PLA-based) micelles for encapsulating nanoparticles (NPs) is demonstrated, using stereocomplexation between a pair of poly (ethylene glycol)-b-poly(d-lactide)/poly(ethylene glycol)-b-poly(l-lactide) block copolymer blends. Three different superparamagnetic ferrite-based NPs with distinct nanostructures are first prepared by the high-temperature pyrolysis method, including spherical MnFe2O4, cubic MnFe2O4, and core-shell MnFe2O4@Fe3O4. The diameters of these NPs are approximately 7-10 nm as revealed by transmission electron microscopy. These hydrophobic NPs can be encapsulated within self-assembled, stereocomplexed PLA (sc-PLA) micelles. All sc-PLA micelle systems loaded with three different NPs exhibit enhanced stability at elevated temperatures (20-60 °C) and with extended storage time (∼96 h) compared with analogous samples without stereocomplex formation, confirmed by dynamic light scattering measurements. The magnetic NP-loaded micelles with mean diameters of approximately 150 nm show both biocompatibility and superparamagnetic property. Under a 1.5 T magnetic field, cubic MnFe2O4 (c-MnFe2O4)-loaded micelles exhibit an excellent negative contrast enhancement of MR signals (373 mM-1·s-1), while core-shell MnFe2O4@Fe3O4-loaded micelles show a slightly lower signal for MR imaging (275 mM-1·s-1). These results suggest the potential of using sc-PLA-based polymer micelles as universal carriers for magnetic resonance imaging contrast agents with improved stability for different applications such as cancer diagnosis.
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Affiliation(s)
- Haifeng Niu
- Institute of Nano and Biopolymeric Materials, Department of Polymeric Materials, Key Laboratory of Advanced Civil Engineering Materials (Ministry of Education), School of Materials Science and Engineering, Tongji University, 4800 Caoan Road, Shanghai 201804, China
| | - Jianbo Li
- Institute of Nano and Biopolymeric Materials, Department of Polymeric Materials, Key Laboratory of Advanced Civil Engineering Materials (Ministry of Education), School of Materials Science and Engineering, Tongji University, 4800 Caoan Road, Shanghai 201804, China
| | - Quan Cai
- Institute of Nano and Biopolymeric Materials, Department of Polymeric Materials, Key Laboratory of Advanced Civil Engineering Materials (Ministry of Education), School of Materials Science and Engineering, Tongji University, 4800 Caoan Road, Shanghai 201804, China
| | - Xuefang Wang
- Institute of Nano and Biopolymeric Materials, Department of Polymeric Materials, Key Laboratory of Advanced Civil Engineering Materials (Ministry of Education), School of Materials Science and Engineering, Tongji University, 4800 Caoan Road, Shanghai 201804, China
| | - Fuhong Luo
- Institute of Nano and Biopolymeric Materials, Department of Polymeric Materials, Key Laboratory of Advanced Civil Engineering Materials (Ministry of Education), School of Materials Science and Engineering, Tongji University, 4800 Caoan Road, Shanghai 201804, China
| | - Jiaying Gong
- Institute of Nano and Biopolymeric Materials, Department of Polymeric Materials, Key Laboratory of Advanced Civil Engineering Materials (Ministry of Education), School of Materials Science and Engineering, Tongji University, 4800 Caoan Road, Shanghai 201804, China
| | - Zhe Qiang
- School of Polymer Science and Engineering, University of Southern Mississippi, Hattiesburg, Mississippi 39406, United States
| | - Jie Ren
- Institute of Nano and Biopolymeric Materials, Department of Polymeric Materials, Key Laboratory of Advanced Civil Engineering Materials (Ministry of Education), School of Materials Science and Engineering, Tongji University, 4800 Caoan Road, Shanghai 201804, China
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9
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Li H, Zeng Y, Zhang H, Gu Z, Gong Q, Luo K. Functional gadolinium-based nanoscale systems for cancer theranostics. J Control Release 2020; 329:482-512. [PMID: 32898594 DOI: 10.1016/j.jconrel.2020.08.064] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 08/25/2020] [Accepted: 08/30/2020] [Indexed: 02/07/2023]
Abstract
Cancer theranostics is a new strategy for combating cancer that integrates cancer imaging and treatment through theranostic agents to provide an efficient and safe way to improve cancer prognosis. Design and synthesis of these cancer theranostic agents are crucial since these agents are required to be biocompatible, tumor-specific, imaging distinguishable and therapeutically efficacious. In this regard, several types of gadolinium (Gd)-based nanomaterials have been introduced to combine different therapeutic agents with Gd to enhance the efficacy of therapeutic agents. At the same time, the entire treatment procedure could be monitored via imaging tools due to incorporation of Gd ions, Gd chelates and Gd/other imaging probes in the theranostic agents. This review aims to overview recent advances in the Gd-based nanomaterials for cancer theranostics and perspectives for Gd nanomaterial-based cancer theranostics are provided.
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Affiliation(s)
- Haonan Li
- Huaxi MR Research Center (HMRRC), Department of Radiology, Functional and Molecular Imaging Key Laboratory of Sichuan Province, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Yujun Zeng
- Huaxi MR Research Center (HMRRC), Department of Radiology, Functional and Molecular Imaging Key Laboratory of Sichuan Province, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Hu Zhang
- Amgen Bioprocessing Centre, Keck Graduate Institute, Claremont, CA 91711, USA
| | - Zhongwei Gu
- Huaxi MR Research Center (HMRRC), Department of Radiology, Functional and Molecular Imaging Key Laboratory of Sichuan Province, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Qiyong Gong
- Huaxi MR Research Center (HMRRC), Department of Radiology, Functional and Molecular Imaging Key Laboratory of Sichuan Province, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Kui Luo
- Huaxi MR Research Center (HMRRC), Department of Radiology, Functional and Molecular Imaging Key Laboratory of Sichuan Province, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu 610041, China.
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10
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Zhang M, Zhang X, Cai S, Mei H, He Y, Huang D, Shi W, Li S, Cao J, He B. Photo-induced specific intracellular release EGFR inhibitor from enzyme/ROS-dual sensitive nano-platforms for molecular targeted-photodynamic combinational therapy of non-small cell lung cancer. J Mater Chem B 2020; 8:7931-7940. [PMID: 32779670 DOI: 10.1039/d0tb01053g] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Molecular targeted-photodynamic combinational therapy is a promising strategy to enhance antitumor effects; meanwhile, current nanocarriers face challenges of limited selective delivery and release of therapeutic agents to specific tumor sites, which significantly compromises their therapeutic efficacy. Herein, we report active-targeting, enzyme- and ROS-dual responsive nanoparticles (HPGBCA) consisting of CD44-targeting hyaluronic acid (HA) shells and afatinib (AFT)-loaded, ROS-sensitive poly(l-lysine)-conjugated chlorin e6 (Ce6) derivative nanoparticle cores (PGBCA). HPGBCA can actively carry AFT and Ce6 specifically to tumor cells due to the negatively charged HA and CD44-mediated active targeting. Subsequently, hyaluronidase in the endosome will further spur the degradation of the HA shell to prompt exposure of the positively charged PGBCA core for rapid endosomal escape and intracellular delivery of AFT and Ce6. Furthermore, the generation of ROS produced by Ce6 under NIR irradiation can trigger the rapid oxidation of the thioether linker to facilitate the release of AFT into the cytoplasm. In vitro and in vivo studies demonstrated that the released AFT and excessive ROS at the local site can synergistically induce cell apoptosis to enhance the therapeutic efficacy without side effects. Our developed intelligent nanoparticle provides new avenues to achieve on-demand, specific intracellular drug release for improved molecular targeted-photodynamic combination therapeutic efficacy.
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Affiliation(s)
- Man Zhang
- School of Chemical Engineering, Sichuan University, Chengdu 610065, China.
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11
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Lu B, Zhou G, Xiao F, He Q, Zhang J. Stimuli-responsive poly(ionic liquid) nanoparticles for controlled drug delivery. J Mater Chem B 2020; 8:7994-8001. [PMID: 32761012 DOI: 10.1039/d0tb01352h] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
A poly(ionic liquid) (PIL) obtained by polymerizing an ionic liquid (IL) monomer exhibits the characteristics of low cost and good biocompatibility, and it retains the excellent properties of the monomer. However, there is still a need to develop PILs for biomedical applications, which has been paid little attention. Herein, an amphiphilic block polymer containing a PIL block is synthesized, which simultaneously includes a targeted ligand, a photo-responsive block, and a pH-responsive block. The resultant amphiphilic block polymer can self-assemble into drug-loaded nanoparticles with a size of ∼80 nm in aqueous solution, and its drug loading capacity is as high as 70%. Moreover, the drug releasing mechanism of these drug-loaded nanoparticles can be triggered by light and pH stimuli. These novel amphiphilic PIL-based drug-loaded nanoparticles show highly effective antitumor effects, providing a promising approach for the delivery and controlled release of chemotherapy drugs in cancer therapy.
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Affiliation(s)
- Beibei Lu
- State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Shenzhen 518055, P. R. China
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