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Patra S, Dey J, Kar S, Chakraborty A. Delivery of Chlorambucil to the Brain Using Surface Modified Solid Lipid Nanoparticles. ACS APPLIED BIO MATERIALS 2024; 7:3403-3413. [PMID: 38700026 DOI: 10.1021/acsabm.4c00326] [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] [Indexed: 05/05/2024]
Abstract
The delivery of drugs to the brain in the therapy of diseases of the central nervous system (CNS) remains a continuing challenge because of the lack of delivery systems that can cross the blood-brain barrier (BBB). Therefore, there is a need to develop an innovative delivery method for the treatment of CNS diseases. Thus, we have investigated the interaction of γ-aminobutyric acid (GABA) and S-(-)-γ-amino-α-hydroxybutyric acid (GAHBA) with the GABA receptor by performing a docking study. Both GABA and GAHBA show comparable binding affinities toward the receptor. In this study, we developed surface-modified solid lipid nanoparticles (SLNs) using GAHBA-derived lipids that can cross the BBB. CLB-loaded SLNs were characterized by a number of methods including differential scanning calorimetry, dynamic light scattering, UV-vis spectroscopy, and transmission electron microscopy. The blank and CLB-loaded SLN suspensions were found to exhibit good storage stability. Also, the SLNs showed a higher encapsulation efficiency for CLB drugs. In vitro release kinetics of CLB at physiological temperature was also investigated. The results of the in vitro cell cytotoxicity assay and flow cytometry studies in the human glioma U87MG cell line and human prostate cancer PC3 cell line suggested a higher efficacy of the GAHBA-modified CLB-loaded SLNs in U87MG cells. The transcription level of GABA receptor expression in the target organ and cell line was analyzed by a reverse transcription polymerase chain reaction study. The in vivo biodistribution and brain uptake in C57BL6 mice and SPECT/CT imaging in Wistar rats investigated using 99mTc-labeled SLN and autoradiography suggest that the SLNs have an increasing brain uptake. We have demonstrated the delivery of the anticancer drug chlorambucil (CLB) to glioma.
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Affiliation(s)
- Swagata Patra
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
| | - Joykrishna Dey
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
| | - Somnath Kar
- Radiation Medicine Centre, Bhabha Atomic Research Centre, Parel, Mumbai 400012, India
| | - Avik Chakraborty
- Radiation Medicine Centre, Bhabha Atomic Research Centre, Parel, Mumbai 400012, India
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Zhang Y, Zhang H, Wang Y, Ji Y, Wang F, He P. A Novel Cu(II) Loaded Polypeptide SO 2 Prodrug Nanoformulation Combining Chemodynamic and Gas Anticancer Therapies. Macromol Biosci 2024; 24:e2300429. [PMID: 37985928 DOI: 10.1002/mabi.202300429] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 11/06/2023] [Indexed: 11/22/2023]
Abstract
Sulfur dioxide (SO2)-based gas therapy and chemodynamic therapyare both reactive oxygen species (ROS)-mediated anticancer strategies, but there are few reports of their combined application. To this end, a novel graft-type copolymeric SO2 prodrug, PLG-g-mPEG-DNs, is designed and synthesized in this work. The amphiphilic polypeptides can self-assemble into nanoparticles (NPs) and encapsulated Cu(II) ions by metal-carboxyl coordination. In vitro release results showed that the obtained NPs-Cu can respond to the acidic pH and high glutathione levels typical of a tumor microenvironment to release Cu(II) and SO2 simultaneously. Both a Cu(II)-triggered Fenton-like reaction and the SO2 gas would promote ROS production and upregulate the oxidative stress in tumor cells, leading to an enhanced killing effect towards 4T1 cancer cells compared to either Cu(II) or the NPs alone. Furthermore, the in vitro hemolysis of NPs-Cu is less than 1.0% at a high concentration of 8 mg/mL, indicating good blood compatibility and the potential for in vivo tumor inhibition application.
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Affiliation(s)
- Yu Zhang
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, P. R. China
| | - Hongyu Zhang
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, P. R. China
| | - Yanfang Wang
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, P. R. China
| | - Yingying Ji
- School of Materials Science and Engineering, Changchun University of Science and Technology, Changchun, 130022, P. R. China
| | - Fang Wang
- Department of Regeneration Medicine, School of Pharmaceutical Sciences, Jilin University, Changchun, 130021, P. R. China
| | - Pan He
- School of Materials Science and Engineering, Changchun University of Science and Technology, Changchun, 130022, P. R. China
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Ren Q, Zhang X, Sheng Y, Yu N, Li M, Chen Z. Phytic acid-Cu 2+ framework/Cu 2-xS nanocomposites with heat-shock protein down-modulation ability for enhanced multimodal combination therapy. J Colloid Interface Sci 2023; 652:2116-2126. [PMID: 37703681 DOI: 10.1016/j.jcis.2023.09.024] [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: 05/31/2023] [Revised: 08/31/2023] [Accepted: 09/04/2023] [Indexed: 09/15/2023]
Abstract
Mild-temperature photothermal therapy (mPTT) has shown some advantages over traditional photothermal therapy, such as reducing the damage to surrounding healthy tissues and minimizing side effects. Nevertheless, cancer cells can easily repair damage caused by mild hyperthermia due to heat shock proteins (HSPs). Thus, it is imperative to maximize the mPTT efficiency by down-regulating HSPs overexpression and combining other cancer treatments. Herein, we report the synthesis of phytic acid (PA)-Cu2+ framework/copper sulfide (Cu2-xS) nanocomposites (abbreviated as PA-Cu/Cu2-xS NPs) as the novel therapeutic platform that can down-regulate HSPs overexpression for enhanced multimodal mPTT/chemodynamic therapy (CDT)/chemotherapy. PA-Cu/Cu2-xS NPs were prepared through self-assembly and in-situ vulcanization strategy, resulting in irregular-shaped particles with an approximate size of 100 nm. PA-Cu/Cu2-xS NPs display a plasmon effect from Cu2-xS, which enhances near-infrared (NIR) absorption and possesses excellent photothermal conversion efficiency (41.7%). Moreover, PA-Cu/Cu2-xS NPs exhibit Fenton-like reaction activity resulting from the Cu ions for CDT, and the reaction activity can be further improved 1.3 times due to mild hyperthermia during mPTT. Furthermore, the generated hydroxyl radical (•OH) can effectively decrease HSPs level to enhance mPTT. PA-Cu/Cu2-xS NPs can also serve as a drug delivery system, and they are capable of loading doxorubicin (DOX) with a loading ability (20.7%). Combining mPTT/CDT/chemotherapy exhibits significant inhibition of tumor growth. This approach can serve as a basis for designing more exquisite platforms that combine mPTT with other therapies to achieve more effective cancer treatment.
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Affiliation(s)
- Qian Ren
- Department of Interventional and Vascular Surgery, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, China; State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
| | - Xiaojing Zhang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
| | - Yangyi Sheng
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
| | - Nuo Yu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
| | - Maoquan Li
- Department of Interventional and Vascular Surgery, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, China
| | - Zhigang Chen
- Department of Interventional and Vascular Surgery, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, China; State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China.
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Lang W, Chen LZ, Chen Y, Cao QY. A GSH-activated AIE-based polymer photosensitizer for killing cancer cells. Talanta 2023; 258:124473. [PMID: 36989616 DOI: 10.1016/j.talanta.2023.124473] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Revised: 03/16/2023] [Accepted: 03/18/2023] [Indexed: 03/29/2023]
Abstract
Developing efficient photosensitizers which are sensitive to therapeutic tumor signals, but non-toxic to normal cells has always been a tremendous challenge in photodynamic therapy (PDT) process. Herein, a novel copolymer P1 was developed by ring-opening metathesis polymerization (ROMP) with disulfide bond linked ferrocene-norbornene dyad NB-SS-PyFc and the aggregation-induced emission (AIE) fluorephore anchored norbornene NB-TPE, and its nanoparticles (NPs) were obtained by using the amphiphilic Pluronic F-127 as the surfactant via a nanoprecipitation method. The P1 NPs show a weak emission and a low 1O2 generation for the quenching effect from the ferrocene moiety to the AIE group. However, the addition of GSH can recover the AIE fluorephore emission and 1O2 generation for cleavage the disulfide bond. Importantly, P1 NPs have been used for image-guided cancer cells apoptosis for the GSH activated 1O2 generation.
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Qiu X, Chen S, Zhu J. Assembled Morphology of Copper-Thiourea Coordination-Mediated Metallo-Supramolecular Polymers. Macromol Rapid Commun 2023; 44:e2200918. [PMID: 36639944 DOI: 10.1002/marc.202200918] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 12/26/2022] [Indexed: 01/15/2023]
Abstract
Metallo-supramolecular polymers represent a powerful platform to construct self-assembled morphologies. Copper-thiourea (Cu-TU) coordination interactions, though have been extensively studied in small molecular system, the role of TU motifs in synthetic polymers using metal-ligand coordination to afford supramolecular aggregation and their morphology are often overlooked. Herein, an amphiphilic random copolymer, poly(oligo(ethylene glycol) ethyl acrylate-r-acylthiourea) (P(OEGEA-r-ATU)), bearing pendant TU motifs behaving as the ligand to coordinate Cu, a design characterized by core-coordinated metallo-supramolecular polymer is rationally synthesized. Indeed, rod-like nano-objects are successfully generated via the self-assembly and coordination interaction between P(OEGEA-r-ATU) and Cu. The spatial distribution of TU moieties in polymer chain, along with their Cu chelating capability, featuring the interchain coordination interaction, is tightly related to metallo-supramolecular polymer organization. The specific Cu-TU coordination interactions enable the prompted robustness and stability of soft P(OEGEA-r-ATU), induce the polymer chain configuration, which eventually furnish efficient fabrication of rod-like nano-objects via straightforward nanoprecipitation procedure. These structural motifs of copper-coordinated, rod-like nano-objects from such metallo-supramolecular polymers endow the potential therapeutic properties, such as anti-inflammatory and antitumor effects.
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Affiliation(s)
- Xiaoyang Qiu
- Hubei Engineering Research Center for Biomaterials and Medical Protective Materials, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), Wuhan, 430074, China
| | - Senbin Chen
- Hubei Engineering Research Center for Biomaterials and Medical Protective Materials, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), Wuhan, 430074, China
| | - Jintao Zhu
- Hubei Engineering Research Center for Biomaterials and Medical Protective Materials, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), Wuhan, 430074, China
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