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Chen YH, Liu IJ, Lin TC, Tsai MC, Hu SH, Hsu TC, Wu YT, Tzang BS, Chiang WH. PEGylated chitosan-coated nanophotosensitizers for effective cancer treatment by photothermal-photodynamic therapy combined with glutathione depletion. Int J Biol Macromol 2024; 266:131359. [PMID: 38580018 DOI: 10.1016/j.ijbiomac.2024.131359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2024] [Revised: 03/12/2024] [Accepted: 04/01/2024] [Indexed: 04/07/2024]
Abstract
The combination of photothermal therapy (PTT) and photodynamic therapy (PDT) has emerged as a promising strategy for cancer treatment. However, the poor photostability and photothermal conversion efficiency (PCE) of organic small-molecule photosensitizers, and the intracellular glutathione (GSH)-mediated singlet oxygen scavenging largely decline the antitumor efficacy of PTT and PDT. Herein, a versatile nanophotosensitizer (NPS) system is developed by ingenious incorporation of indocyanine green (ICG) into the PEGylated chitosan (PEG-CS)-coated polydopamine (PDA) nanoparticles via multiple π-π stacking, hydrophobic and electrostatic interactions. The PEG-CS-covered NPS showed prominent colloidal and photothermal stability as well as high PCE (ca 62.8 %). Meanwhile, the Michael addition between NPS and GSH can consume GSH, thus reducing the GSH-induced singlet oxygen scavenging. After being internalized by CT26 cells, the NPS under near-infrared laser irradiation produced massive singlet oxygen with the aid of thermo-enhanced intracellular GSH depletion to elicit mitochondrial damage and lipid peroxide formation, thus leading to ferroptosis and apoptosis. Importantly, the combined PTT and PDT delivered by NPS effectively inhibited CT26 tumor growth in vivo by light-activated intense hyperthermia and redox homeostasis disturbance. Overall, this work presents a new tactic of boosting antitumor potency of ICG-mediated phototherapy by PEG-CS-covered NPS.
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Affiliation(s)
- Yu-Hsin Chen
- Department of Chemical Engineering, National Chung Hsing University, Taichung 402, Taiwan
| | - I-Ju Liu
- Department of Chemical Engineering, National Chung Hsing University, Taichung 402, Taiwan
| | - Tzu-Chen Lin
- Department of Chemical Engineering, National Chung Hsing University, Taichung 402, Taiwan
| | - Min-Chen Tsai
- Department of Chemical Engineering, National Chung Hsing University, Taichung 402, Taiwan
| | - Shang-Hsiu Hu
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu 300, Taiwan
| | - Tsai-Ching Hsu
- Institute of Medicine, Chung Shan Medical University, Taichung 402, Taiwan; Immunology Research Center, Chung Shan Medical University, Taichung 402, Taiwan; Clinical Laboratory, Chung Shan Medical University Hospital, Taichung 402, Taiwan
| | - Yi-Ting Wu
- Institute of Medicine, Chung Shan Medical University, Taichung 402, Taiwan
| | - Bor-Show Tzang
- Institute of Medicine, Chung Shan Medical University, Taichung 402, Taiwan; Immunology Research Center, Chung Shan Medical University, Taichung 402, Taiwan; Clinical Laboratory, Chung Shan Medical University Hospital, Taichung 402, Taiwan; Department of Biochemistry, School of Medicine, Chung Shan Medical University, Taichung 402, Taiwan.
| | - Wen-Hsuan Chiang
- Department of Chemical Engineering, National Chung Hsing University, Taichung 402, Taiwan.
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2
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Wu TH, Lu YJ, Chiang MR, Chen PH, Lee YS, Shen MY, Chiang WH, Liu YC, Chuang CY, Amy Lin HC, Hu SH. Lung metastasis-Harnessed in-Situ adherent porous organic nanosponge-mediated antigen capture for A self-cascaded detained dendritic cells and T cell infiltration. Biomaterials 2024; 305:122443. [PMID: 38160627 DOI: 10.1016/j.biomaterials.2023.122443] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 10/06/2023] [Accepted: 12/19/2023] [Indexed: 01/03/2024]
Abstract
The infiltration of cytotoxic T lymphocytes promises to suppress the most irresistible metastatic tumor for immunotherapy, yet immune privilege and low immunogenic responses in these aggressive clusters often restrict lymphocyte recruitment. Here, an in situ adherent porous organic nanosponge (APON) doubles as organ selection agent and antigen captor to overcome immune privilege is developed. With selective organ targeting, the geometric effect of APON composed of disc catechol-functionalized covalent organic framework (COF) boosts the drug delivery to lung metastases. Along with a self-cascaded immune therapy, the therapeutic agents promote tumor release of damage-associated molecular patterns (DAMPs), and then, in situ deposition of gels to capture these antigens. Furthermore, APON with catechol analogs functions as a reservoir of antigens and delivers autologous DAMPs to detain dendritic cells, resulting in a sustained enhancement of immunity. This disc sponges (APON) at lung metastasis as antigen reservoirs and immune modulators effectively suppress the tumor in 60 days and enhanced the survival rate.
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Affiliation(s)
- Ting-Hsien Wu
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu, 300044, Taiwan
| | - Yu-Jen Lu
- Department of Neurosurgery, Chang Gung Memorial Hospital, Linkou, Tao-Yuan 33305, Taiwan; The College of Medicine, Chang Gung University, Tao-Yuan 33302, Taiwan
| | - Min-Ren Chiang
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu, 300044, Taiwan
| | - Pin-Hua Chen
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu, 300044, Taiwan
| | - Yu-Sheng Lee
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu, 300044, Taiwan
| | - Ming-Yin Shen
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu, 300044, Taiwan; Department of Surgery, China Medical University Hsinchu Hospital, Hsinchu County, 30272, Taiwan
| | - Wen-Hsuan Chiang
- Department of Chemical Engineering, National Chung Hsing University, Taichung, 402, Taiwan
| | - Yu-Chen Liu
- Laboratory for Human Immunology (Single Cell Genomics), WPI Immunology Frontier Research Center, Osaka University, Osaka, 565-0871, Japan
| | - Chun-Yu Chuang
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu, 300044, Taiwan
| | - Hsiao-Chun Amy Lin
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu, 300044, Taiwan
| | - Shang-Hsiu Hu
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu, 300044, Taiwan.
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Liu YL, Wang TH, Yeh NT, Huang WJ, Tzang BS, Wu IT, Chin HY, Hu SH, Hsu TC, Chiang WH. Tumor-activated targetable photothermal chemotherapy using IR780/zoledronic acid-containing hybrid polymeric nanoassemblies with folate modification to treat aggressive breast cancer. Nanoscale 2024; 16:1415-1427. [PMID: 38167914 DOI: 10.1039/d3nr05637f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2024]
Abstract
To effectively treat aggressive breast cancer by tumor-activated targetable photothermal chemotherapy, in this work, folate (FA)-modified hybrid polymeric nanoassemblies (HPNs) with a poly(ethylene glycol) (PEG)-detachable capability are developed as vehicles for tumor-targeted co-delivery of IR780, a lipophilic photothermal reagent, and zoledronic acid (ZA), a hydrophilic chemotherapy drug. Through hydrophobic interaction-induced co-assembly, IR780 molecules and ZA/poly(ethylenimine) (PEI) complexes were co-encapsulated into a poly(lactic-co-glycolic acid) (PLGA)-rich core stabilized by the amphiphilic FA-modified D-α-tocopheryl poly(ethylene glycol) succinate (FA-TPGS) and acidity-sensitive PEG-benzoic imine-octadecane (C18) (PEG-b-C18) conjugates. The developed FA-ZA/IR780@HPNs with high ZA and IR780 payloads not only showed excellent colloidal stability in a serum-containing milieu, but also promoted IR780-based photostability and photothermal conversion efficiency. Furthermore, for FA-ZA/IR780@HPNs under simulated physiological conditions, the premature leakage of IR780 and ZA molecules was remarkably declined. In a mimetic acidic tumor microenvironment, the uptake of FA-ZA/IR780@HPNs by FA receptor-overexpressed 4T1 breast cancer cells was remarkably promoted by PEG detachment combined with FA receptor-mediated endocytosis, thus effectively hindering migration of cancer cells and augmenting the anticancer efficacy of photothermal chemotherapy. Notably, the in vivo studies demonstrated that the FA-ZA/IR780@HPNs largely deposited at 4T1 tumor sites and profoundly suppressed tumor growth and metastasis without severe systemic toxicity upon near infrared (NIR)-triggered IR780-mediated hyperthermia integrated with ZA chemotherapy. This work presents a practical strategy to treat aggressive breast tumors with tumor-triggered targetable photothermal chemotherapy using FA-ZA/IR780@HPNs.
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Affiliation(s)
- Yu-Ling Liu
- Department of Chemical Engineering, National Chung Hsing University, Taichung 402, Taiwan.
| | - Tzu-Hao Wang
- Department of Chemical Engineering, National Chung Hsing University, Taichung 402, Taiwan.
| | - Nien-Tzu Yeh
- Department of Chemical Engineering, National Chung Hsing University, Taichung 402, Taiwan.
| | - Wei-Jen Huang
- Department of Chemical Engineering, National Chung Hsing University, Taichung 402, Taiwan.
| | - Bor-Show Tzang
- Institute of Medicine, Chung Shan Medical University, Taichung 402, Taiwan.
- Department of Biochemistry, School of Medicine, Chung Shan Medical University, Taichung 402, Taiwan
- Immunology Research Center, Chung Shan Medical University, Taichung 402, Taiwan
- Clinical Laboratory, Chung Shan Medical University Hospital, Taichung 402, Taiwan
| | - I-Ting Wu
- Institute of Medicine, Chung Shan Medical University, Taichung 402, Taiwan.
| | - Hao-Yang Chin
- Institute of Medicine, Chung Shan Medical University, Taichung 402, Taiwan.
| | - Shang-Hsiu Hu
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu 300, Taiwan
| | - Tsai-Ching Hsu
- Institute of Medicine, Chung Shan Medical University, Taichung 402, Taiwan.
- Immunology Research Center, Chung Shan Medical University, Taichung 402, Taiwan
- Clinical Laboratory, Chung Shan Medical University Hospital, Taichung 402, Taiwan
| | - Wen-Hsuan Chiang
- Department of Chemical Engineering, National Chung Hsing University, Taichung 402, Taiwan.
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Wang TH, Shen MY, Yeh NT, Chen YH, Hsu TC, Chin HY, Wu YT, Tzang BS, Chiang WH. Photothermal nanozymes to self-augment combination cancer therapy by dual-glutathione depletion and hyperthermia/acidity-activated hydroxyl radical generation. J Colloid Interface Sci 2023; 650:1698-1714. [PMID: 37499626 DOI: 10.1016/j.jcis.2023.07.134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Revised: 07/10/2023] [Accepted: 07/21/2023] [Indexed: 07/29/2023]
Abstract
Chemodynamic therapy (CDT) has emerged as a promising strategy for tumor treatment. Nevertheless, the low Fenton catalytic efficiency and the high concentration of glutathione (GSH) in cancer cells largely decline antitumor efficacy of CDT. To self-augment antitumor effect of the CDT by combining with photothermal therapy (PTT), the unique photothermal nanozymes that doubly depleted GSH, and generated massive hydroxyl radicals (·OH) in the hyperthermia/acidity-activated manner were developed. Through the coordination of Fe3+ ions with PEGylated chitosan (PEG-CS)-modified polydopamine (PDA) nanoparticles, the attained Fe3+@PEG-CS/PDA nanozymes showed outstanding colloidal stability, photothermal conversion efficiency and acidity-triggered Fe3+ release. By GSH-mediated valence states transition of Fe3+ ions and Michael reaction between GSH and quinone-rich PDA, the nanozymes sufficiently executed dual depletion of GSH with the elevated temperature.Under mimic tumor acidity and near-infrared (NIR) irradiation condition, the endocytosed nanozymes effectively converted intracellular H2O2 into toxic ·OH upon amplified Fenton reaction, thereby potently killing 4T1 cancer cells and RAW 264.7 cells. Importantly, the nanozymes prominently suppressed 4T1 tumor growth in vivo and metastasis of cancer cells by CDT/PTT combination therapy without significant systemic toxicity. Our study provides novel visions in design of therapeutic nanozymes with great clinical translational prospect for tumor treatment.
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Affiliation(s)
- Tzu-Hao Wang
- Department of Chemical Engineering, National Chung Hsing University, Taichung 402, Taiwan
| | - Ming-Yen Shen
- Department of Chemical Engineering, National Chung Hsing University, Taichung 402, Taiwan
| | - Nien-Tzu Yeh
- Department of Chemical Engineering, National Chung Hsing University, Taichung 402, Taiwan
| | - Yu-Hsin Chen
- Department of Chemical Engineering, National Chung Hsing University, Taichung 402, Taiwan
| | - Tsai-Ching Hsu
- Institute of Medicine, Chung Shan Medical University, Taichung 402, Taiwan; Immunology Research Center, Chung Shan Medical University, Taichung 402, Taiwan; Clinical Laboratory, Chung Shan Medical University Hospital, Taichung 402, Taiwan
| | - Hao-Yang Chin
- Institute of Medicine, Chung Shan Medical University, Taichung 402, Taiwan
| | - Yi-Ting Wu
- Institute of Medicine, Chung Shan Medical University, Taichung 402, Taiwan
| | - Bor-Show Tzang
- Institute of Medicine, Chung Shan Medical University, Taichung 402, Taiwan; Immunology Research Center, Chung Shan Medical University, Taichung 402, Taiwan; Clinical Laboratory, Chung Shan Medical University Hospital, Taichung 402, Taiwan; Department of Biochemistry, School of Medicine, Chung Shan Medical University, Taichung 402, Taiwan.
| | - Wen-Hsuan Chiang
- Department of Chemical Engineering, National Chung Hsing University, Taichung 402, Taiwan.
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Chiang MR, Shen WT, Huang PX, Wang KL, Weng WH, Chang CW, Chiang WH, Liu YC, Chang SJ, Hu SH. Programmed T cells infiltration into lung metastases with harnessing dendritic cells in cancer immunotherapies by catalytic antigen-capture sponges. J Control Release 2023; 360:260-273. [PMID: 37364798 DOI: 10.1016/j.jconrel.2023.06.033] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Revised: 05/22/2023] [Accepted: 06/22/2023] [Indexed: 06/28/2023]
Abstract
T lymphocytes served as immune surveillance to suppress metastases by physically interacting with cancer cells. Whereas tumor immune privilege and heterogeneity protect immune attack, it limits immune cell infiltration into tumors, especially in invasive metastatic clusters. Here, a catalytic antigen-capture sponge (CAS) containing the catechol-functionalized copper-based metal organic framework (MOF) and chloroquine (CQ) for programming T cells infiltration is reported. The intravenously injected CAS accumulates at the tumor via the folic acid-mediated target and margination effect. In metastases, Fenton-like reaction induced by copper ions of CAS disrupts the intracellular redox potential, i.e., chemodynamic therapy (CDT), thereby reducing glutathione (GSH) levels. Furthermore, CQ helps inhibit autophagy by inducing lysosomal deacidification during CDT. This process leads to the breakdown of self-defense mechanisms, which exacerbates cytotoxicity. The therapies promote the liberation of tumor-associated antigens, such as neoantigens and damage-associated molecular patterns (DAMPs). Subsequently, the catechol groups present on CAS perform as antigen reservoirs and transport the autologous tumor-associated antigens to dendritic cells, resulting in prolonged immune activation. The CAS, which is capable of forming in-situ, serves as an antigen reservoir in CDT-mediated lung metastasis and leads to the accumulation of immune cells in metastatic clusters, thus hindering metastatic tumors.
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Affiliation(s)
- Min-Ren Chiang
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu 300044, Taiwan
| | - Wei-Ting Shen
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu 300044, Taiwan; Department of Nanoengineering, University of California, San Diego, CA 92093, USA
| | - Pin-Xuan Huang
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu 300044, Taiwan
| | - Kang-Li Wang
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu 300044, Taiwan
| | - Wei-Han Weng
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu 300044, Taiwan
| | - Chien-Wen Chang
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu 300044, Taiwan
| | - Wen-Hsuan Chiang
- Department of Chemical Engineering, National Chung Hsing University, Taichung 402, Taiwan
| | - Yu-Chen Liu
- Laboratory for Human Immunology (Single Cell Genomics), WPI Immunology Frontier Research Center, Osaka University, Japan; Center for Infectious Disease Education and Research (CiDER), Osaka University, Osaka, Japan
| | - Shing-Jyh Chang
- Department of Obstetrics and Gynecology, Hsinchu Municipal MacKay Children's Hospital, Hsinchu 300, Taiwan; Department of Nursing, Yuanpei University of Medical Technology, Hsinchu 300, Taiwan
| | - Shang-Hsiu Hu
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu 300044, Taiwan.
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Huynh TMH, Yalamandala BN, Chiang MR, Weng WH, Chang CW, Chiang WH, Liao LD, Liu YC, Hu SH. Programmed antigen capture-harnessed dendritic cells by margination-hitchhiking lung delivery. J Control Release 2023; 358:718-728. [PMID: 37230295 DOI: 10.1016/j.jconrel.2023.05.028] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Revised: 04/18/2023] [Accepted: 05/19/2023] [Indexed: 05/27/2023]
Abstract
Adoptive T cells and immunotherapy suppress the most destructive metastatic tumors and prevent tumor recurrence by inducing T lymphocytes. However, the heterogeneity and immune privilege of invasive metastatic clusters often reduce immune cell infiltration and therapeutic efficacy. Here, the red blood cells (RBC)-hitchhiking mediated lung metastasis delivery of multi-grained iron oxide nanostructures (MIO) programming the antigen capture, dendritic cell harnessing, and T cell recruitment is developed. MIO is assembled to the surface of RBCs by osmotic shock-mediated fusion, and reversible interactions enable the transfer of MIO to pulmonary capillary endothelial cells by intravenous injection by squeezing RBCs at the pulmonary microvessels. RBC-hitchhiking delivery revealed that >65% of MIOs co-localized in tumors rather than normal tissues. In alternating magnetic field (AMF)-mediated magnetic lysis, MIO leads to the release of tumor-associated antigens, namely neoantigens and damage-associated molecular patterns. It also acted as an antigen capture agent-harnessed dendritic cells delivers these antigens to lymph nodes. By utilizing site-specific targeting, erythrocyte hitchhiker-mediated delivery of MIO to lung metastases improves survival and immune responses in mice with metastatic lung tumors.
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Affiliation(s)
- Thi My Hue Huynh
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu 300044, Taiwan
| | - Bhanu Nirosha Yalamandala
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu 300044, Taiwan
| | - Min-Ren Chiang
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu 300044, Taiwan
| | - Wei-Han Weng
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu 300044, Taiwan
| | - Chien-Wen Chang
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu 300044, Taiwan
| | - Wen-Hsuan Chiang
- Department of Chemical Engineering, National Chung Hsing University, Taichung 402, Taiwan
| | - Lun-De Liao
- Institute of Biomedical Engineering and Nanomedicine, National Health Research Institutes, Miaoli County 35053, Taiwan
| | - Yu-Chen Liu
- Immunology Frontier Research Center, Osaka University, Osaka 565-0871, Japan
| | - Shang-Hsiu Hu
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu 300044, Taiwan.
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Huang HJ, Huang SY, Wang TH, Lin TY, Huang NC, Shih O, Jeng US, Chu CY, Chiang WH. Clay nanosheets simultaneously intercalated and stabilized by PEGylated chitosan as drug delivery vehicles for cancer chemotherapy. Carbohydr Polym 2023; 302:120390. [PMID: 36604068 DOI: 10.1016/j.carbpol.2022.120390] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Revised: 11/16/2022] [Accepted: 11/20/2022] [Indexed: 11/27/2022]
Abstract
Montmorillonite (MMT) has been frequently utilized as drug vehicles due to its high specific surface area, excellent cation exchange capacity and biocompatibility. However, the significant flocculation of MMT under physiological condition restricted its application to drug delivery. To conquer this problem, the graft-type PEGylated chitosan (PEG-CS) adducts were synthesized as intercalator to stabilize MMT dispersion. Through electrostatic attraction between the chitosan and MMT, the PEG-CS adducts were adsorbed on MMT surfaces and intercalated into MMT. The resulting PEG-CS/MMT nanosheets possessed PEG-rich surfaces, thus showing outstanding dispersion in serum-containing environment. Moreover, the physicochemical characterization revealed that the increased mass ratio of PEG-CS to MMT led to the microstructure transition of PEG-CS/MMT nanosheets from multilayered to exfoliated structure. Interestingly, the PEG-CS/MMT nanosheets with mass ratio of 8.0 in freeze-dried state exhibited a hierarchical lamellar structure organized by the intercalated MMT bundles and unintercalated PEG-CS domains. Notably, the multilayered PEG-CS/MMT nanosheets showed the capability of loading doxorubicin (DOX) superior to the exfoliated counterparts. Importantly, the DOX@PEG-CS/MMT nanosheets endocytosed by TRAMP-C1 cells liberated the drug progressively within acidic organelles, thereby eliciting cell apoptosis. This work provides a new strategy of achieving the controllable dispersion stability of MMT nanoclays towards application potentials in drug delivery.
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Affiliation(s)
- Hsuan-Jung Huang
- Department of Chemical Engineering, National Chung Hsing University, Taichung 402, Taiwan
| | - Shih-Yu Huang
- Department of Chemical Engineering, National Chung Hsing University, Taichung 402, Taiwan
| | - Tzu-Hao Wang
- Department of Chemical Engineering, National Chung Hsing University, Taichung 402, Taiwan
| | - Tzu-Yun Lin
- Department of Chemical Engineering, National Chung Hsing University, Taichung 402, Taiwan
| | - Nan-Ching Huang
- Department of Chemical Engineering, National Chung Hsing University, Taichung 402, Taiwan
| | - Orion Shih
- National Synchrotron Radiation Research Center, Hsinchu 30076, Taiwan
| | - U-Ser Jeng
- National Synchrotron Radiation Research Center, Hsinchu 30076, Taiwan
| | - Che-Yi Chu
- Department of Chemical Engineering, National Chung Hsing University, Taichung 402, Taiwan.
| | - Wen-Hsuan Chiang
- Department of Chemical Engineering, National Chung Hsing University, Taichung 402, Taiwan.
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Huang SY, Yeh NT, Wang TH, Hsu TC, Chin HY, Tzang BS, Chiang WH. Onion-like doxorubicin-carrying polymeric nanomicelles with tumor acidity-sensitive dePEGylation to expose positively-charged chitosan shell for enhanced cancer chemotherapy. Int J Biol Macromol 2023; 227:925-937. [PMID: 36563808 DOI: 10.1016/j.ijbiomac.2022.12.172] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Revised: 11/30/2022] [Accepted: 12/16/2022] [Indexed: 12/24/2022]
Abstract
To effectively promote antitumor potency of doxorubicin (DOX), a regularly used chemotherapy drug, the tumor acidity-responsive polymeric nanomicelles from self-assembly of the as-synthesized amphiphilic benzoic imine-containing PEGylated chitosan-g-poly(lactic-co-glycolic acid) (PLGA) conjugates were developed as vehicles of DOX. The attained PEGylated chitosan-g-PLGA nanomicelles with high PEGylation degree (H-PEG-CSPNs) were characterized to exhibit a "onion-like" core-shell-corona structure consisting of a hydrophobic PLGA core covered by benzoic imine-rich chitosan shell and outer hydrophilic PEG corona. The DOX-carrying H-PEG-CSPNs (DOX@H-PEG-CSPNs) displayed robust colloidal stability under large-volume dilution condition and in a serum-containing aqueous solution of physiological salt concentration. Importantly, the DOX@H-PEG-CSPNs in weak acidic milieu undergoing the hydrolysis of benzoic imine bonds and increased protonation of chitosan shell showed dePEGylation and surface charge conversion. Also, the considerable swelling of protonated chitosan shell within DOX@H-PEG-CSPNs accelerated drug release. Notably, the cellular internalization of DOX@H-PEG-CSPNs by TRAMP-C1 prostate cancer cells under mimic acidic tumor microenvironment was efficiently boosted upon acidity-triggered detachment of PEG corona and exposure of positively-charged chitosan shell, thus augmenting DOX-mediated anticancer effect. Compared to free DOX molecules, the DOX@H-PEG-CSPNs appreciably suppressed TRAMP-C1 tumor growth in vivo, thereby showing great promise in improving DOX chemotherapy.
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Affiliation(s)
- Shih-Yu Huang
- Department of Chemical Engineering, National Chung Hsing University, Taichung 402, Taiwan
| | - Nien-Tzu Yeh
- Department of Chemical Engineering, National Chung Hsing University, Taichung 402, Taiwan
| | - Tzu-Hao Wang
- Department of Chemical Engineering, National Chung Hsing University, Taichung 402, Taiwan
| | - Tsai-Ching Hsu
- Institute of Medicine, Chung Shan Medical University, Taichung 402, Taiwan; Immunology Research Center, Chung Shan Medical University, Taichung 402, Taiwan; Clinical Laboratory, Chung Shan Medical University Hospital, Taichung 402, Taiwan
| | - Hao-Yang Chin
- Institute of Medicine, Chung Shan Medical University, Taichung 402, Taiwan
| | - Bor-Show Tzang
- Institute of Medicine, Chung Shan Medical University, Taichung 402, Taiwan; Immunology Research Center, Chung Shan Medical University, Taichung 402, Taiwan; Clinical Laboratory, Chung Shan Medical University Hospital, Taichung 402, Taiwan; Department of Biochemistry, School of Medicine, Chung Shan Medical University, Taichung 402, Taiwan.
| | - Wen-Hsuan Chiang
- Department of Chemical Engineering, National Chung Hsing University, Taichung 402, Taiwan.
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Chou YH, Liu YL, Hsu TC, Yow JL, Tzang BS, Chiang WH. Tumor acidity-responsive polymeric nanoparticles to promote intracellular delivery of zoledronic acid by PEG detachment and positive charge exposure for enhanced antitumor potency. J Mater Chem B 2022; 10:4363-4374. [DOI: 10.1039/d2tb00695b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Zoledronic acid (ZA), a third-generation bisphosphonate, has been extensively used to treat osteoporosis and cancer bone metastasis and demonstrated to suppress proliferation of varied cancer cells and selectively kill tumor-associated...
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Hung YN, Liu YL, Chou YH, Hu SH, Cheng B, Chiang WH. Promoted cellular uptake and intracellular cargo release of ICG/DOX-carrying hybrid polymeric nanoassemblies upon acidity-activated PEG detachment to enhance cancer photothermal/chemo combination therapy. Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2021.110944] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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Ting CW, Chou YH, Huang SY, Chiang WH. Indocyanine green-carrying polymeric nanoparticles with acid-triggered detachable PEG coating and drug release for boosting cancer photothermal therapy. Colloids Surf B Biointerfaces 2021; 208:112048. [PMID: 34419806 DOI: 10.1016/j.colsurfb.2021.112048] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2020] [Revised: 07/06/2021] [Accepted: 08/14/2021] [Indexed: 12/11/2022]
Abstract
In order to boost anticancer efficacy of indocyanine green (ICG)-mediated photothermal therapy (PTT) by promoting intracellular ICG delivery, the ICG-carrying hybrid polymeric nanoparticles were fabricated in this study by co-assembly of hydrophobic poly(lactic-co-glycolic acid) (PLGA) segments, ICG molecules, amphiphilic tocopheryl polyethylene glycol succinate (TPGS) and pH-responsive methoxy poly(ethylene glycol)-benzoic imine-1-octadecanamine (mPEG-b-C18) segments in aqueous solution. The ICG-loaded nanoparticles were characterized to have ICG-containing PLGA core stabilized by hydrophilic PEG-rich surface coating and a well-dispersed spherical shape. Moreover, the ICG-loaded nanoparticles in pH 7.4 aqueous solution sufficiently inhibited ICG self-aggregation and leakage, thereby increasing aqueous photostability of ICG molecules. Notably, when the solution pH was reduced from pH 7.4-5.5, the acid-triggered hydrolysis of benzoic-imine linkers within mPEG-b-C18 remarkably facilitated the detachment of mPEG segments from ICG-loaded nanoparticles, thus accelerating ICG release. The findings of in vitro cellular uptake and cytotoxicity studies further demonstrated that the PEGylated ICG-carrying hybrid nanoparticles were efficiently internalized by MCF-7 cells compared to free ICG and realized intracellular acid-triggered rapid ICG liberation, thus enhancing anticancer effect of ICG-mediated PTT to potently kill cancer cells.
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Affiliation(s)
- Chih-Wei Ting
- Department of Chemical Engineering, National Chung Hsing University, Taichung, 402, Taiwan
| | - Ya-Hsuan Chou
- Department of Chemical Engineering, National Chung Hsing University, Taichung, 402, Taiwan
| | - Shih-Yu Huang
- Department of Chemical Engineering, National Chung Hsing University, Taichung, 402, Taiwan
| | - Wen-Hsuan Chiang
- Department of Chemical Engineering, National Chung Hsing University, Taichung, 402, Taiwan.
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Chen SH, Liu TI, Chuang CL, Chen HH, Chiang WH, Chiu HC. Alendronate/folic acid-decorated polymeric nanoparticles for hierarchically targetable chemotherapy against bone metastatic breast cancer. J Mater Chem B 2021; 8:3789-3800. [PMID: 32150202 DOI: 10.1039/d0tb00046a] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
To considerably enhance treatment efficacy for bone metastatic breast cancer via dual bone/tumor-targeted chemotherapy, a nanoparticle-based delivery system comprising poly(lactic-co-glycolic acid) (PLGA) as the hydrophobic core coated with alendronate-modified d-α-tocopheryl polyethylene glycol succinate (ALN-TPGS) and folic acid-conjugated TPGS (FA-TPGS) was developed as a vehicle for paclitaxel (PTX) in this work. The ALN/FA-decorated nanoparticles not only showed superior ALN-mediated binding affinity for hydroxyapatite abundant in bone tissue but also promoted uptake of payloads by folate receptor-overexpressing cancer cells to significantly augment PTX cytotoxicity. Notably, through dual-targetable delivery to the bone matrix and folate receptor-overexpressing 4T1 tumors, the PTX-loaded nanoparticles substantially accumulated in bone metastases in vivo and inhibited 4T1 tumor growth and lung metastasis, leading to significant improvement of the survival rate of treated mice. Upon treatment with the ALN/FA-decorated PTX-loaded nanoparticles, the bone destruction and bone loss of the tumor-bearing mice were appreciably retarded, and the adverse effects on normal tissues were alleviated. These results demonstrate that the ALN/FA-decorated PTX-loaded delivery system developed in this study shows great promise for the effective treatment of bone metastatic breast cancer.
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Affiliation(s)
- Shih-Hong Chen
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu 30013, Taiwan. and Department of Anesthesiology, Taipei Tzu Chi Hospital, New Taipei City 231, Taiwan and Department of Anesthesiology, National Taiwan University Hospital Hsin-Chu Branch, Hsinchu, Taiwan
| | - Te-I Liu
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu 30013, Taiwan.
| | - Cheng-Lin Chuang
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu 30013, Taiwan.
| | - Hsin-Hung Chen
- Department of Chemical Engineering, National Chung Hsing University, Taichung 402, Taiwan.
| | - Wen-Hsuan Chiang
- Department of Chemical Engineering, National Chung Hsing University, Taichung 402, Taiwan.
| | - Hsin-Cheng Chiu
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu 30013, Taiwan.
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Hsu CW, Hsieh MH, Xiao MC, Chou YH, Wang TH, Chiang WH. pH-responsive polymeric micelles self-assembled from benzoic-imine-containing alkyl-modified PEGylated chitosan for delivery of amphiphilic drugs. Int J Biol Macromol 2020; 163:1106-1116. [PMID: 32679318 DOI: 10.1016/j.ijbiomac.2020.07.110] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Revised: 07/06/2020] [Accepted: 07/10/2020] [Indexed: 11/19/2022]
Abstract
In order to efficiently promote loading efficiency and aqueous photostability of indocyanine green (ICG), an amphiphilic tricarbocyanine dye, the polysaccharide-based nanomicelles utilized as a vehicle for ICG were fabricated by self-assembly of the amphiphilic benzoic-imine-containing PEGylated chitosan/4-(dodecyloxy)benzaldehyde (DBA) conjugates in aqueous solution of pH 7.4. The resulting polymeric micelles were characterized to have a hydrophobic hybrid chitosan/DBA core surrounded by hydrophilic PEG shells. Importantly, the encapsulation of ICG into the hybrid chitosan/DBA core of polymeric micelles by the combined hydrophobic and electrostatic interactions not only promoted the ICG loading but also enhanced its aqueous photostability. With the pH of micelle suspension being reduced from 7.4 to 5.0, upon acid-triggered cleavage of benzoic-imine bonds between chitosan and DBA as well as the extending of the protonated chitosan segments from hybrid cores toward aqueous phase, the rather hydrophobic DBA-rich core was formed within micelles, thereby leading to shrinking of the polymeric micelles. The robust ICG-loaded polymeric micelles showed several superior properties including the inhibition of ICG leakage under the mimic physiological and acidic conditions, favorable biocompatibility and photo-activated hyperthermia effect. This work suggests that the pH-responsive ICG-carrying chitosan-based micelles display great potential in cancer theranostic.
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Affiliation(s)
- Ching-Wei Hsu
- Department of Chemical Engineering, National Chung Hsing University, Taichung 402, Taiwan
| | - Ming-Hung Hsieh
- Department of Chemical Engineering, National Chung Hsing University, Taichung 402, Taiwan
| | - Min-Cong Xiao
- Department of Chemical Engineering, National Chung Hsing University, Taichung 402, Taiwan
| | - Ya-Hsuan Chou
- Department of Chemical Engineering, National Chung Hsing University, Taichung 402, Taiwan
| | - Tzu-Hao Wang
- Department of Chemical Engineering, National Chung Hsing University, Taichung 402, Taiwan
| | - Wen-Hsuan Chiang
- Department of Chemical Engineering, National Chung Hsing University, Taichung 402, Taiwan.
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Xiao MC, Chou YH, Hung YN, Hu SH, Chiang WH. Hybrid polymeric nanoparticles with high zoledronic acid payload and proton sponge-triggered rapid drug release for anticancer applications. Materials Science and Engineering: C 2020; 116:111277. [DOI: 10.1016/j.msec.2020.111277] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2020] [Revised: 06/27/2020] [Accepted: 07/05/2020] [Indexed: 12/12/2022]
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15
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Fang JH, Liu CH, Hsu RS, Chen YY, Chiang WH, Wang HMD, Hu SH. Transdermal Composite Microneedle Composed of Mesoporous Iron Oxide Nanoraspberry and PVA for Androgenetic Alopecia Treatment. Polymers (Basel) 2020; 12:polym12061392. [PMID: 32580298 PMCID: PMC7362218 DOI: 10.3390/polym12061392] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Revised: 06/19/2020] [Accepted: 06/19/2020] [Indexed: 01/21/2023] Open
Abstract
The transdermal delivery of therapeutic agents amplifying a local concentration of active molecules have received considerable attention in wide biomedical applications, especially in vaccine development and medical beauty. Unlike oral or subcutaneous injections, this approach can not only avoid the loss of efficacy of oral drugs due to the liver's first-pass effect but also reduce the risk of infection by subcutaneous injection. In this study, a magneto-responsive transdermal composite microneedle (MNs) with a mesoporous iron oxide nanoraspberry (MIO), that can improve the drug delivery efficiency, was fabricated by using a 3D printing-molding method. With loading of Minoxidil (Mx, a medication commonly used to slow the progression of hair loss and speed the process of hair regrowth), MNs can break the barrier of the stratum corneum through the puncture ability, and control the delivery dose for treating androgenetic alopecia (AGA). By 3D printing process, the sizes and morphologies of MNs is able to be, easily, architected. The MIOs were embedded into the tip of MNs which can deliver Mx as well as generate mild heating for hair growth, which is potentially attributed by the expansion of hair follicle and drug penetration. Compared to the mice without any treatments, the hair density of mice exhibited an 800% improvement after being treated by MNs with MF at 10-days post-treatment.
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Affiliation(s)
- Jen-Hung Fang
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu 300, Taiwan; (J.-H.F.); (C.-H.L.); (R.-S.H.); (Y.-Y.C.)
| | - Che-Hau Liu
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu 300, Taiwan; (J.-H.F.); (C.-H.L.); (R.-S.H.); (Y.-Y.C.)
| | - Ru-Siou Hsu
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu 300, Taiwan; (J.-H.F.); (C.-H.L.); (R.-S.H.); (Y.-Y.C.)
| | - Yin-Yu Chen
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu 300, Taiwan; (J.-H.F.); (C.-H.L.); (R.-S.H.); (Y.-Y.C.)
| | - Wen-Hsuan Chiang
- Department of Chemical Engineering, National Chung Hsing University, Taichung 402, Taiwan;
| | - Hui-Min David Wang
- Graduate Institute of Biomedical Engineering, National Chung Hsing University, Taichung 402, Taiwan;
| | - Shang-Hsiu Hu
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu 300, Taiwan; (J.-H.F.); (C.-H.L.); (R.-S.H.); (Y.-Y.C.)
- Correspondence:
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Hsu RS, Fang JH, Shen WT, Sheu YC, Su CK, Chiang WH, Hu SH. Injectable DNA-architected nanoraspberry depot-mediated on-demand programmable refilling and release drug delivery. Nanoscale 2020; 12:11153-11164. [PMID: 32400827 DOI: 10.1039/d0nr01185a] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Drug delivery depots boosting a local concentration of therapeutic agents have received great attention in clinical applications due to their low occurrence of side effects and high therapeutic efficacy. However, once the payload is exhausted, the local drug concentration will be lower than the therapeutic window. To address this issue, an injectable double-strand deoxyribonucleic acid (DNA)-architected nanoraspberry depot (DNR-depot) was developed that can refill doxorubicin (Dox, an anticancer drug) from the blood and remotely control drug release on demand. The large porous surface on a uniform nanoraspberry (NR) filled covalently with DNA serves as a Dox sponge-like refilling reservoir, and the NR serves as a magnetic electrical absorber. Via the strong affinity between Dox and DNA molecules, the refilling process of Dox can be achieved on DNR-depot both in vitro and in vivo. Upon high-frequency magnetic field (HFMF) treatment, the remotely triggered release of Dox is actuated by the dissociation of Dox and DNA molecules, facilitating an approximately 800% improvement in drug concentration at the tumor site compared to free Dox injection alone. Furthermore, the cycles of refilling and release can be carried out more than 3 times in vivo within 21 days. The combination of refilling and HFMF-programmable Dox release in tumors via DNR-depot can effectively inhibit tumor growth for 30 days.
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Affiliation(s)
- Ru-Siou Hsu
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu, 300, Taiwan.
| | - Jen-Hung Fang
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu, 300, Taiwan.
| | - Wei-Ting Shen
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu, 300, Taiwan.
| | - Yu-Chen Sheu
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu, 300, Taiwan.
| | - Cheng-Kuan Su
- Department of Chemistry, National Chung Hsing University, Taichung 402, Taiwan
| | - Wen-Hsuan Chiang
- Department of Chemical Engineering, National Chung Hsing University, Taichung 402, Taiwan
| | - Shang-Hsiu Hu
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu, 300, Taiwan.
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Liao SC, Ting CW, Chiang WH. Functionalized polymeric nanogels with pH-sensitive benzoic-imine cross-linkages designed as vehicles for indocyanine green delivery. J Colloid Interface Sci 2020; 561:11-22. [DOI: 10.1016/j.jcis.2019.11.109] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2019] [Revised: 11/03/2019] [Accepted: 11/27/2019] [Indexed: 12/13/2022]
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18
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Lo YW, Sheu MT, Chiang WH, Chiu YL, Tu CM, Wang WY, Wu MH, Wang YC, Lu M, Ho HO. In situ chemically crosslinked injectable hydrogels for the subcutaneous delivery of trastuzumab to treat breast cancer. Acta Biomater 2019; 86:280-290. [PMID: 30616077 DOI: 10.1016/j.actbio.2019.01.003] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2018] [Revised: 12/18/2018] [Accepted: 01/04/2019] [Indexed: 02/06/2023]
Abstract
Recently, novel approaches for the delivery of therapeutic antibodies have attracted much attention, especially sustained release formulations. However, sustained release formulations capable of carrying a high antibody load remain a challenge for practical use. In this study, a novel injectable hydrogel composed of maleimide-modified γ-polyglutamic acid (γ-PGA-MA) and thiol end-functionalized 4-arm poly(ethylene glycol) (4-arm PEG-SH) was developed for the subcutaneous delivery of trastuzumab. γ-PGA-MA and 4-arm PEG-SH formed a hydrogel through thiol-maleimide reactions, which had shear-thinning properties and reversible rheological behaviors. Moreover, a high content of trastuzumab (>100 mg/mL) could be loaded into this hydrogel, and trastuzumab demonstrated a sustained release over several weeks through electrostatic attraction. In addition, trastuzumab released from the hydrogel had adequate stability in terms of its structural integrity, binding bioactivity, and antiproliferative effect on BT-474 cells. Pharmacokinetic studies demonstrated that trastuzumab-loaded hydrogel (Her-hydrogel-10, composed of 1.5% γ-PGA-MA, 1.5% 4-arm PEG-SH, and 10 mg/mL trastuzumab) and trastuzumab/Zn-loaded hydrogel (Her/Zn-hydrogel-10, composed of 1.5% γ-PGA-MA, 1.5% 4-arm PEG-SH, 5 mM ZnCl2, and 10 mg/mL trastuzumab) could lower the maximum plasma concentration (Cmax) than the trastuzumab solution. Furthermore, Her/Zn-hydrogel-10 was better able to release trastuzumab in a controlled manner, which was ascribed to electrostatic attraction and formation of trastuzumab/Zn nanocomplexes. In a BT-474 xenograft tumor model, Her-hydrogel-10 had a similar tumor growth-inhibitory effect as that of the trastuzumab solution. By contrast, Her/Zn-hydrogel-10 exhibited a superior tumor growth-inhibitory capability due to the functionality of Zn. This study demonstrated that this hydrogel has potential as a carrier for the local and systemic delivery of proteins and antibodies. STATEMENT OF SIGNIFICANCE: Recently, novel sustained-release formulations of therapeutic antibodies have attracted much attention. However, these formulations should be able to carry a high antibody load owing to the required high dose, and these formulations remain a challenge for practical use. In this study, a novel injectable chemically cross-linked hydrogel was developed for the subcutaneous delivery of trastuzumab. This novel hydrogel possessed ideal characteristics of loading high content of trastuzumab (>100 mg/mL), sustained release of trastuzumab over several weeks, and maintaining adequate stability of trastuzumab. In vivo studies demonstrated that a trastuzumab-loaded hydrogel possessed the ability of controlled release of trastuzumab and maintained antitumor efficacy same as that of trastuzumab. These results implied that a γ-PGA-MA and 4-arm PEG-SH-based hydrogel has great potential in serving as a carrier for the local or systemic delivery of therapeutic proteins or antibodies.
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Shen MY, Liu TI, Yu TW, Kv R, Chiang WH, Tsai YC, Chen HH, Lin SC, Chiu HC. Hierarchically targetable polysaccharide-coated solid lipid nanoparticles as an oral chemo/thermotherapy delivery system for local treatment of colon cancer. Biomaterials 2019; 197:86-100. [DOI: 10.1016/j.biomaterials.2019.01.019] [Citation(s) in RCA: 72] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Revised: 01/08/2019] [Accepted: 01/08/2019] [Indexed: 02/06/2023]
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Chen HH, Lu IL, Liu TI, Tsai YC, Chiang WH, Lin SC, Chiu HC. Indocyanine green/doxorubicin-encapsulated functionalized nanoparticles for effective combination therapy against human MDR breast cancer. Colloids Surf B Biointerfaces 2019; 177:294-305. [PMID: 30771581 DOI: 10.1016/j.colsurfb.2019.02.001] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2018] [Revised: 01/22/2019] [Accepted: 02/02/2019] [Indexed: 10/27/2022]
Abstract
To overcome low therapeutic efficacy of chemotherapy against multidrug resistance (MDR) breast cancer, a combination therapy system based upon functionalized polymer nanoparticles comprising poly(γ-glutamic acid)-g-poly(lactic-co-glycolic acid) (γ-PGA-g-PLGA) as the major component was developed. The NPs were loaded with doxorubicin (DOX) and indocyanine green (ICG) for dual modality cancer treatment and coated with cholesterol-PEG (C-PEG) for MDR abrogation in treatment of human MDR breast cancer. The in vitro cellular uptake of the DOX/ICG loaded nanoparticles (DI-NPs) by MDR cancer cells was significantly enhanced owing to effective inhibition of the P-gp activity by C-PEG and γ-PGA receptor-mediated endocytosis. DOX localization in cytoplasm and nucleus was observed particularly with the photo-thermal effect that facilitated intracellular drug release. As a result, the C-PEG coated DI-NPs after photo-irradiation exhibited a synergistic effect of combination (chemo/thermal) therapy to depress the proliferation of MDR cancer calls. The ex vivo biodistribution study revealed an enhanced tumor accumulation of C-PEG (2000) coated DI-NPs in MCF-7/MDR tumor-bearing nude mice due to the excellent EPR effects by the NP surface PEGylation. The MDR tumor growth was almost entirely inhibited in the group receiving combination therapy from CP2k-DI-NPs and photo-irradiation along with substantial cell apoptosis of tumor tissues examined by immunohistochemical staining. The results demonstrate a promising dual modality therapy system, CP2k-DI-NPs, developed in this work for effective combination therapy of human MDR breast cancer.
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Affiliation(s)
- Hsin-Hung Chen
- Department of Chemical Engineering, National Chung Hsing University, Taichung, 402, Taiwan
| | - I-Lin Lu
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu, 300, Taiwan; Department of Surgery, Hsinchu Mackay Memorial Hospital, Hsinchu, 300, Taiwan
| | - Te-I Liu
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu, 300, Taiwan
| | - Yuan-Chung Tsai
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu, 300, Taiwan
| | - Wen-Hsuan Chiang
- Department of Chemical Engineering, National Chung Hsing University, Taichung, 402, Taiwan
| | - Sung-Chyr Lin
- Department of Chemical Engineering, National Chung Hsing University, Taichung, 402, Taiwan.
| | - Hsin-Cheng Chiu
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu, 300, Taiwan.
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Hou KT, Liu TI, Chiu HC, Chiang WH. DOX/ICG-carrying γ-PGA-g-PLGA-based polymeric nanoassemblies for acid-triggered rapid DOX release combined with NIR-activated photothermal effect. Eur Polym J 2019. [DOI: 10.1016/j.eurpolymj.2018.11.038] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Liu TI, Yang YC, Chiang WH, Hung CK, Tsai YC, Chiang CS, Lo CL, Chiu HC. Radiotherapy-Controllable Chemotherapy from Reactive Oxygen Species-Responsive Polymeric Nanoparticles for Effective Local Dual Modality Treatment of Malignant Tumors. Biomacromolecules 2018; 19:3825-3839. [DOI: 10.1021/acs.biomac.8b00942] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Te-I Liu
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Ying-Chieh Yang
- Department or Radiology, National Taiwan University Hospital Hsin-Chu Branch, Hsinchu 30013, Taiwan
| | - Wen-Hsuan Chiang
- Department of Chemical Engineering, National Chung Hsing University, Taichung 40227, Taiwan
| | - Chun-Kai Hung
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Yuan-Chung Tsai
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Chi-Shiun Chiang
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Chun-Liang Lo
- Department of Biomedical Engineering, National Yang-Ming University, Taipei 11221, Taiwan
| | - Hsin-Cheng Chiu
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu 30013, Taiwan
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Tsai YC, Vijayaraghavan P, Chiang WH, Chen HH, Liu TI, Shen MY, Omoto A, Kamimura M, Soga K, Chiu HC. Targeted Delivery of Functionalized Upconversion Nanoparticles for Externally Triggered Photothermal/Photodynamic Therapies of Brain Glioblastoma. Am J Cancer Res 2018; 8:1435-1448. [PMID: 29507632 PMCID: PMC5835948 DOI: 10.7150/thno.22482] [Citation(s) in RCA: 118] [Impact Index Per Article: 19.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2017] [Accepted: 12/05/2017] [Indexed: 12/15/2022] Open
Abstract
Therapeutic efficacy of glioblastoma multiforme (GBM) is often severely limited by poor penetration of therapeutics through blood-brain barrier (BBB) into brain tissues and lack of tumor targeting. In this regard, a functionalized upconversion nanoparticle (UCNP)-based delivery system which can target brain tumor and convert deep tissue-penetrating near-infrared (NIR) light into visible light for precise phototherapies on brain tumor was developed in this work. Methods: The UCNP-based phototherapy delivery system was acquired by assembly of oleic acid-coated UCNPs with angiopep-2/cholesterol-conjugated poly(ethylene glycol) and the hydrophobic photosensitizers. The hybrid nanoparticles (ANG-IMNPs) were characterized by DLS, TEM, UV/vis and fluorescence spectrophotometer. Cellular uptake was examined by laser scanning confocal microscopy and flow cytometry. The PDT/PTT effect of ANG-IMNPs was evaluated using MTT assay. Tumor accumulation of NPs was determined by a non-invasive in vivo imaging system (IVIS). The in vivo anti-glioma effect of ANG-IMNPs was evaluated by immunohistochemical (IHC) examination of tumor tissues and Kaplan-Meier survival analysis. Results: In vitro data demonstrated enhanced uptake of ANG-IMNPs by murine astrocytoma cells (ALTS1C1) and pronounced cytotoxicity by combined NIR-triggered PDT and PTT. In consistence with the increased penetration of ANG-IMNPs through endothelial monolayer in vitro, the NPs have also shown significantly enhanced accumulation at brain tumor by IVIS. The IHC tissue examination confirmed prominent apoptotic and necrotic effects on tumor cells in mice receiving targeted dual photo-based therapies, which also led to enhanced median survival (24 days) as compared to the NP treatment without angiopep-2 (14 days). Conclusion: In vitro and in vivo data strongly indicate that the ANG-IMNPs were capable of selectively delivering dual photosensitizers to brain astrocytoma tumors for effective PDT/PTT in conjugation with a substantially improved median survival. The therapeutic efficacy of ANG-IMNPs demonstrated in this study suggests their potential in overcoming BBB and establishing an effective treatment against GBM.
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Huang WC, Lu IL, Chiang WH, Lin YW, Tsai YC, Chen HH, Chang CW, Chiang CS, Chiu HC. Tumortropic adipose-derived stem cells carrying smart nanotherapeutics for targeted delivery and dual-modality therapy of orthotopic glioblastoma. J Control Release 2017; 254:119-130. [DOI: 10.1016/j.jconrel.2017.03.035] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2016] [Revised: 12/30/2016] [Accepted: 03/19/2017] [Indexed: 01/07/2023]
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Hung CC, Huang WC, Lin YW, Yu TW, Chen HH, Lin SC, Chiang WH, Chiu HC. Erratum: Active Tumor Permeation and Uptake of Surface Charge-Switchable Theranostic Nanoparticles for Imaging-Guided Photothermal/Chemo Combinatorial Therapy: Erratum. Am J Cancer Res 2017; 7:559-560. [PMID: 28255349 PMCID: PMC5327632 DOI: 10.7150/thno.18728] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
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Huang WC, Chen SH, Chiang WH, Huang CW, Lo CL, Chern CS, Chiu HC. Tumor Microenvironment-Responsive Nanoparticle Delivery of Chemotherapy for Enhanced Selective Cellular Uptake and Transportation within Tumor. Biomacromolecules 2016; 17:3883-3892. [DOI: 10.1021/acs.biomac.6b00956] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Wen-Chia Huang
- Department
of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu 300, Taiwan
| | - Shih-Hong Chen
- Department
of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu 300, Taiwan
- Department
of Anesthesiology, National Taiwan University Hospital−Hsinchu Branch, Hsinchu 300, Taiwan
| | - Wen-Hsuan Chiang
- Department
of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu 300, Taiwan
| | - Chu-Wei Huang
- Department
of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu 300, Taiwan
| | - Chun-Liang Lo
- Department
of Biomedical Engineering, National Yang-Ming University, Taipei 112, Taiwan
| | - Chorng-Shyan Chern
- Department
of Chemical Engineering, National Taiwan University of Science and Technology, Taipei 106, Taiwan
| | - Hsin-Cheng Chiu
- Department
of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu 300, Taiwan
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Hung CC, Huang WC, Lin YW, Yu TW, Chen HH, Lin SC, Chiang WH, Chiu HC. Active Tumor Permeation and Uptake of Surface Charge-Switchable Theranostic Nanoparticles for Imaging-Guided Photothermal/Chemo Combinatorial Therapy. Theranostics 2016; 6:302-17. [PMID: 26909107 PMCID: PMC4737719 DOI: 10.7150/thno.13686] [Citation(s) in RCA: 75] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2015] [Accepted: 10/29/2015] [Indexed: 12/13/2022] Open
Abstract
To significantly promote tumor uptake and penetration of therapeutics, a nanovehicle system comprising poly(lactic-co-glycolic acid) (PLGA) as the hydrophobic cores coated with pH-responsive N-acetyl histidine modified D-α-tocopheryl polyethylene glycol succinate (NAcHis-TPGS) is developed in this work. The nanocarriers with switchable surface charges in response to tumor extracellular acidity (pHe) were capable of selectively co-delivering indocyanine green (ICG), a photothermal agent, and doxorubicin (DOX), a chemotherapy drug, to tumor sites. The in vitro cellular uptake of ICG/DOX-loaded nanoparticles by cancer cells and macrophages was significantly promoted in weak acidic environments due to the increased protonation of the NAcHis moieties. The results of in vivo and ex vivo biodistribution studies demonstrated that upon intravenous injection the theranostic nanoparticles were substantially accumulated in TRAMP-C1 solid tumor of tumor-bearing mice. Immunohistochemical examination of tumor sections confirmed the active permeation of the nanoparticles into deep tumor hypoxia due to their small size, pHe-induced near neutral surface, and the additional hitchhiking transport via tumor-associated macrophages. The prominent imaging-guided photothermal therapy of ICG/DOX-loaded nanoparticles after tumor accumulation induced extensive tumor tissue/vessel ablation, which further promoted their extravasation and DOX tumor permeation, thus effectively suppressing tumor growth.
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Yu TW, Lu IL, Huang WC, Hu SH, Hung CC, Chiang WH, Chiu HC. Acidity-triggered surface charge neutralization and aggregation of functionalized nanoparticles for promoted tumor uptake. RSC Adv 2016. [DOI: 10.1039/c6ra05807h] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
A polymeric nanovehicle featured with histidine-rich surface was developed for tumor-targeted delivery of doxorubicin.
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Affiliation(s)
- Ting-Wei Yu
- Department of Biomedical Engineering and Environmental Sciences
- National Tsing Hua University
- Hsinchu 300
- Taiwan
| | - I.-Lin Lu
- Department of Biomedical Engineering and Environmental Sciences
- National Tsing Hua University
- Hsinchu 300
- Taiwan
- Department of Surgery
| | - Wen-Chia Huang
- Department of Biomedical Engineering and Environmental Sciences
- National Tsing Hua University
- Hsinchu 300
- Taiwan
| | - Shang-Hsiu Hu
- Department of Biomedical Engineering and Environmental Sciences
- National Tsing Hua University
- Hsinchu 300
- Taiwan
| | - Chia-Chian Hung
- Department of Biomedical Engineering and Environmental Sciences
- National Tsing Hua University
- Hsinchu 300
- Taiwan
| | - Wen-Hsuan Chiang
- Department of Biomedical Engineering and Environmental Sciences
- National Tsing Hua University
- Hsinchu 300
- Taiwan
| | - Hsin-Cheng Chiu
- Department of Biomedical Engineering and Environmental Sciences
- National Tsing Hua University
- Hsinchu 300
- Taiwan
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29
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Huang WC, Shen MY, Chen HH, Lin SC, Chiang WH, Wu PH, Chang CW, Chiang CS, Chiu HC. Monocytic delivery of therapeutic oxygen bubbles for dual-modality treatment of tumor hypoxia. J Control Release 2015; 220:738-50. [DOI: 10.1016/j.jconrel.2015.09.016] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2015] [Revised: 08/31/2015] [Accepted: 09/09/2015] [Indexed: 01/24/2023]
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30
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Huang WC, Chiang WH, Cheng YH, Lin WC, Yu CF, Yen CY, Yeh CK, Chern CS, Chiang CS, Chiu HC. Tumortropic monocyte-mediated delivery of echogenic polymer bubbles and therapeutic vesicles for chemotherapy of tumor hypoxia. Biomaterials 2015; 71:71-83. [DOI: 10.1016/j.biomaterials.2015.08.033] [Citation(s) in RCA: 81] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2015] [Revised: 08/14/2015] [Accepted: 08/16/2015] [Indexed: 10/23/2022]
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31
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Gao DY, Lin TT, Sung YC, Liu YC, Chiang WH, Chang CC, Liu JY, Chen Y. CXCR4-targeted lipid-coated PLGA nanoparticles deliver sorafenib and overcome acquired drug resistance in liver cancer. Biomaterials 2015. [DOI: 10.1016/j.biomaterials.2015.07.035] [Citation(s) in RCA: 84] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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32
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Chen HH, Huang WC, Chiang WH, Liu TI, Shen MY, Hsu YH, Lin SC, Chiu HC. pH-Responsive therapeutic solid lipid nanoparticles for reducing P-glycoprotein-mediated drug efflux of multidrug resistant cancer cells. Int J Nanomedicine 2015; 10:5035-48. [PMID: 26346762 PMCID: PMC4531030 DOI: 10.2147/ijn.s86053] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
In this study, a novel pH-responsive cholesterol-PEG adduct-coated solid lipid nanoparticles (C-PEG-SLNs) carrying doxorubicin (DOX) capable of overcoming multidrug resistance (MDR) breast cancer cells is presented. The DOX-loaded SLNs have a mean hydrodynamic diameter of ~100 nm and a low polydispersity index (under 0.20) with a high drug-loading efficiency ranging from 80.8% to 90.6%. The in vitro drug release profiles show that the DOX-loaded SLNs exhibit a pH-controlled drug release behavior with the maximum and minimum unloading percentages of 63.4% at pH 4.7 and 25.2% at pH 7.4, respectively. The DOX-loaded C-PEG-SLNs displayed a superior ability in inhibiting the proliferation of MCF-7/MDR cells. At a DOX concentration of 80 μM, the cell viabilities treated with C-PEG-SLNs were approximately one-third of the group treated with free DOX. The inhibition activity of C-PEG-SLNs could be attributed to the transport of C-PEG to cell membrane, leading to the change of the composition of the cell membrane and thus the inhibition of permeability glycoprotein activity. This hypothesis is supported by the confocal images showing the accumulation of DOX in the nuclei of cancer cells and the localization of C-PEG on the cell membranes. The results of in vivo study further demonstrated that the DOX delivered by the SLNs accumulates predominantly in tumor via enhanced permeability and retention effect, the enhanced passive tumor accumulation due to the loose intercellular junctions of endothelial cells lining inside blood vessels at tumor site, and the lack of lymphatic drainage. The growth of MCF-7/MDR xenografted tumor on Balb/c nude mice was inhibited to ~400 mm3 in volume as compared with the free DOX treatment group, 1,140 mm3, and the group treated with 1,2 distearoyl-sn-glycero-3-phosphoethanolamine-N-[methoxy(polyethylene glycol)] solid lipid nanoparticles, 820 mm3. Analysis of the body weight of nude mice and the histology of organs and tumor after the administration of DOX-loaded SLNs show that the SLNs have no observable side effects. These results indicate that the C-PEG-SLN is a promising platform for the delivery of therapeutic agents for MDR cancer chemotherapy.
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Affiliation(s)
- Hsin-Hung Chen
- Department of Chemical Engineering, National Chung Hsing University, Taichung, Taiwan
| | - Wen-Chia Huang
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu, Taiwan
| | - Wen-Hsuan Chiang
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu, Taiwan
| | - Te-I Liu
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu, Taiwan
| | - Ming-Yin Shen
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu, Taiwan ; Department of Surgery, National Taiwan University Hospital-Hsinchu Branch, Hsinchu, Taiwan
| | - Yuan-Hung Hsu
- Pharmaceutical Optimization Technology Division, Biomedical Technology and Device Research Laboratory, Industrial Technology Research Institute, Hsinchu, Taiwan
| | - Sung-Chyr Lin
- Department of Chemical Engineering, National Chung Hsing University, Taichung, Taiwan
| | - Hsin-Cheng Chiu
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu, Taiwan
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Jian WH, Yu TW, Chen CJ, Huang WC, Chiu HC, Chiang WH. Indocyanine Green-Encapsulated Hybrid Polymeric Nanomicelles for Photothermal Cancer Therapy. Langmuir 2015; 31:6202-10. [PMID: 25985856 DOI: 10.1021/acs.langmuir.5b00963] [Citation(s) in RCA: 59] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Indocyanine green (ICG), an FDA approved medical near-infrared (NIR) imaging agent, has been extensively used in cancer theranosis. However, the limited aqueous photostability, rapid body clearance, and poor cellular uptake severely restrict its practical applications. For these problems to be overcome, ICG-encapsulated hybrid polymeric nanomicelles (PNMs) were developed in this work through coassociation of the amphiphilic diblock copolymer poly(lactic-co-glycolic acid)-b-poly(ethylene glycol) (PLGA-b-PEG) and hydrophobic electrostatic complexes composed of ICG molecules and branched poly(ethylenimine) (PEI). The ICG-encapsulated hybrid PNMs featured a hydrophobic PLGA/ICG/PEI core stabilized by hydrophilic PEG shells. The encapsulation of electrostatic ICG/PEI complexes into the compact PLGA-rich core not only facilitated the ICG loading but also promoted its aqueous optical stability. The effects of the chain length of PEI in combination with ICG on the physiochemical properties of PNMs and their drug leakage were also investigated. PEI(10k) (10 kDa) could form highly robust and dense complexes with ICG, and thus prominently reduced ICG outflow from the PNMs. The results of in vitro cellular uptake and cytotoxicity studies revealed that the ICG/PEI(10k)-loaded PNMs significantly promoted cellular uptake of ICG by HeLa cells due to their near-neutral surface, and thereby augmented the NIR-triggered hyperthermia effect in destroying cancer cells. These findings strongly indicate that the ICG/PEI10k-loaded PNMs have significant potential for attaining effective cancer imaging and photothermal therapy.
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Affiliation(s)
- Wei-Hong Jian
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu 300, Taiwan
| | - Ting-Wei Yu
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu 300, Taiwan
| | - Chien-Ju Chen
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu 300, Taiwan
| | - Wen-Chia Huang
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu 300, Taiwan
| | - Hsin-Cheng Chiu
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu 300, Taiwan
| | - Wen-Hsuan Chiang
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu 300, Taiwan
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Fang JH, Lee YT, Chiang WH, Hu SH. Magnetoresponsive virus-mimetic nanocapsules with dual heat-triggered sequential-infected multiple drug-delivery approach for combinatorial tumor therapy. Small 2015; 11:2417-2428. [PMID: 25604032 DOI: 10.1002/smll.201402969] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2014] [Revised: 12/09/2014] [Indexed: 06/04/2023]
Abstract
Stimuli-responsive drug-delivery systems constitute an appealing approach to direct and restrict drug release spatiotemporally at the specific site of interest. However, it is difficult for most systems to affect every cancer cell in a tumor tissue due to the presence of the natural tumor barrier, leading to potential tumor recurrence. Here, core-shell magnetoresponsive virus-mimetic nanocapsules (VNs), which can infect cancer cells sequentially and double as a magnetothermal agent fabricated through anchoring iron oxide nanoparticles in a single-component protein (lactoferrin) shell, are reported. With large payload of hydrophilic/hydrophobic anticancer cargos, doxorubicin and palictaxel, VNs can simultaneously give a rapid drug release and intense heat while applying an external high-frequency magnetic field (HFMF). Furthermore, after being liberated from dead cells by HFMF manipulation, the constructive VNs can sequentially infect neighboring cancer cells and deliver sufficient therapeutic agents to next targeted sites. With high efficiency for sequential cell infections, VNs have successfully eliminated subcutaneous tumor after a combinatorial treatment. These results demonstrate that the VNs could be used for locally targeted, on-demand, magnetoresponsive chemotherapy/hyperthermia, combined with repeated cell infections for tumor therapy and other therapeutic applications.
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Affiliation(s)
- Jen-Hung Fang
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu, 300, Taiwan
| | - Yun-Ting Lee
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu, 300, Taiwan
| | - Wen-Hsuan Chiang
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu, 300, Taiwan
| | - Shang-Hsiu Hu
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu, 300, Taiwan
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35
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Chiang WH, Huang WC, Chang YJ, Shen MY, Chen HH, Chern CS, Chiu HC. Doxorubicin-Loaded Nanogel Assemblies with pH/Thermo-triggered Payload Release for Intracellular Drug Delivery. MACROMOL CHEM PHYS 2014. [DOI: 10.1002/macp.201400145] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Wen-Hsuan Chiang
- Department of Biomedical Engineering and Environmental Sciences; National Tsing Hua University; Hsinchu 30013 Taiwan
| | - Wen-Chia Huang
- Department of Biomedical Engineering and Environmental Sciences; National Tsing Hua University; Hsinchu 30013 Taiwan
| | - Yu-Jen Chang
- Department of Biomedical Engineering and Environmental Sciences; National Tsing Hua University; Hsinchu 30013 Taiwan
| | - Ming-Yin Shen
- Department of Biomedical Engineering and Environmental Sciences; National Tsing Hua University; Hsinchu 30013 Taiwan
- Department of Surgery; National Taiwan University Hospital-Hsinchu Branch; Hsinchu 30013 Taiwan
| | - Hsin-Hung Chen
- Department of Chemical Engineering; National Chung Hsing University; Taichung 402 Taiwan
| | - Chorng-Shyan Chern
- Department of Chemical Engineering; National Taiwan University of Science and Technology; Taipei 106 Taiwan
| | - Hsin-Cheng Chiu
- Department of Biomedical Engineering and Environmental Sciences; National Tsing Hua University; Hsinchu 30013 Taiwan
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36
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Huang YF, Chiang WH, Huang WC, Chen HH, Shen MY, Lin SC, Chern CS, Chiu HC. pH-responsive hierarchical transformation of charged lipid assemblies within polyelectrolyte gel layers with applications for controlled drug release and MR imaging contrast. J Mater Chem B 2014; 2:4988-4992. [DOI: 10.1039/c4tb00771a] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Cationic DOTAP assemblies within poly(acrylic acid) gel effectively modulate drug release and MR imaging contrast by pH-induced morphological transformation.
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Affiliation(s)
- Yi-Fong Huang
- Department of Chemical Engineering
- National Chung Hsing University
- Taichung 402, Taiwan
| | - Wen-Hsuan Chiang
- Department of Biomedical Engineering and Environmental Sciences
- National Tsing Hua University
- Hsinchu 300, Taiwan
| | - Wen-Chia Huang
- Department of Biomedical Engineering and Environmental Sciences
- National Tsing Hua University
- Hsinchu 300, Taiwan
| | - Hsin-Hung Chen
- Department of Chemical Engineering
- National Chung Hsing University
- Taichung 402, Taiwan
| | - Ming-Yin Shen
- Department of Biomedical Engineering and Environmental Sciences
- National Tsing Hua University
- Hsinchu 300, Taiwan
- Department of Surgery
- National Taiwan University Hospital-Hsinchu Branch
| | - Sung-Chyr Lin
- Department of Chemical Engineering
- National Chung Hsing University
- Taichung 402, Taiwan
| | - Chorng-Shyan Chern
- Department of Chemical Engineering
- National Taiwan University of Science and Technology
- Taipei 106, Taiwan
| | - Hsin-Cheng Chiu
- Department of Biomedical Engineering and Environmental Sciences
- National Tsing Hua University
- Hsinchu 300, Taiwan
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37
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Chiang WH, Ho VT, Chen HH, Huang WC, Huang YF, Lin SC, Chern CS, Chiu HC. Superparamagnetic hollow hybrid nanogels as a potential guidable vehicle system of stimuli-mediated MR imaging and multiple cancer therapeutics. Langmuir 2013; 29:6434-6443. [PMID: 23627806 DOI: 10.1021/la4001957] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Hollow hybrid nanogels were prepared first by the coassembly of the citric acid-coated superparamagnetic iron oxide nanoparticles (SPIONs, 44 wt %) with the graft copolymer (56 wt %) comprising acrylic acid and 2-methacryloylethyl acrylate units as the backbone and poly(ethylene glycol) and poly(N-isopropylacrylamide) as the grafts in the aqueous phase of pH 3.0 in the hybrid vesicle structure, followed by in situ covalent stabilization via the photoinitiated polymerization of MEA residues within vesicles. The resultant hollow nanogels, though slightly swollen, satisfactorily retain their structural integrity while the medium pH is adjusted to 7.4. Confining SPION clusters to such a high level (44 wt %) within the pH-responsive thin gel layer remarkably enhances the transverse relaxivity (r2) and renders the MR imaging highly pH-tunable. For example, with the pH being adjusted from 4.0 to 7.4, the r2 value can be dramatically increased from 138.5 to 265.5 mM(-1) s(-1). The DOX-loaded hybrid nanogels also exhibit accelerated drug release in response to both pH reduction and temperature increase as a result of the substantial disruption of the interactions between drug molecules and copolymer components. With magnetic transport guidance toward the target and subsequent exposure to an alternating magnetic field, this DOX-loaded nanogel system possessing combined capabilities of hyperthermia and stimuli-triggered drug release showed superior in vitro cytotoxicity against HeLa cells as compared to the case with only free drug or hyperthermia alone. This work demonstrates that the hollow inorganic/organic hybrid nanogels hold great potential to serve as a multimodal theranostic vehicle functionalized with such desirable features as the guidable delivery of stimuli-mediated diagnostic imaging and hyperthermia/chemotherapies.
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Affiliation(s)
- Wen-Hsuan Chiang
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu 300, Taiwan
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Chiang WH, Huang WC, Chang CW, Shen MY, Shih ZF, Huang YF, Lin SC, Chiu HC. Functionalized polymersomes with outlayered polyelectrolyte gels for potential tumor-targeted delivery of multimodal therapies and MR imaging. J Control Release 2013; 168:280-8. [PMID: 23562635 DOI: 10.1016/j.jconrel.2013.03.029] [Citation(s) in RCA: 81] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2012] [Revised: 01/22/2013] [Accepted: 03/10/2013] [Indexed: 10/27/2022]
Abstract
A novel tumor-targeting polymersome carrier system capable of delivering magnetic resonance imaging (MRI) and chemotherapy is presented in this study. The doxorubicin (DOX)-loaded magnetic polymersomes were first attained by the self-assembly of lipid-containing copolymer, poly(acrylic acid-co-distearin acrylate), in aqueous solution containing citric acid-coated superparamagnetic iron oxide nanoparticles (SPIONs), and followed by DOX loading via electrostatic attraction. To further functionalize these artificial vesicles with superior in vivo colloidal stability, pH-tunable drug release and active tumor-targeting, chitosan and poly(γ-glutamic acid-co-γ-glutamyl oxysuccinimide)-g-poly(ethyleneglycol)-folate (FA) were deposited in sequence onto the assembly outer surfaces. The interfacial nanogel layers via complementary electrostatic interactions and in-situ covalent cross-linking were thus produced. These nanogel-caged polymersomes (NCPs) show excellent anti-dilution and serum proteins-repellent behaviors. Triggerable release of the encapsulated DOX was governed by dual external stimuli, pH and temperature. When these theranostic NCPs were effectively internalized by HeLa cells via FA receptor-mediated endocytosis and then exposed to high frequency magnetic fields (HFMF), the combined effects of both pH and magnetic hyperthermia-triggered drug release and thermo-therapy resulted in greater cytotoxicity than the treatment by DOX alone. By virtue of the SPION clustering effect in the assembly inner aqueous compartments, the SPION/DOX-loaded NCPs displayed an r₂ relaxivity value (255.2 F emM⁻¹ S⁻¹) higher than Resovist (183.4 F emM⁻¹ S⁻¹), a commercial SPION-based T₂ contrast agent. The high magnetic relaxivity of the tumor-targeting NCPs coupled with their enhanced cellular uptake considerably promoted the MRI contrast of targeted cancer cells. These results demonstrate the great potential of the FA-decorated SPION/DOX-loaded NCPs as an advanced cancer theranostic nanodevice.
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Affiliation(s)
- Wen-Hsuan Chiang
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu 300, Taiwan
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Chiang WH, Ho VT, Huang WC, Huang YF, Chern CS, Chiu HC. Dual stimuli-responsive polymeric hollow nanogels designed as carriers for intracellular triggered drug release. Langmuir 2012; 28:15056-64. [PMID: 23036055 DOI: 10.1021/la302903v] [Citation(s) in RCA: 68] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
Dual stimuli-responsive hollow nanogel spheres serving as an efficient intracellular drug delivery platform were obtained from the spontaneous coassociation of two graft copolymers into the vesicle architecture in aqueous phase. Both copolymers comprise acrylic acid (AAc) and 2-methacryloylethyl acrylate (MEA) units as the backbone and either poly(N-isopropylacrylamide) (PNIPAAm) alone or both PNIPAAm and monomethoxypoly(ethylene glycol) (mPEG) chain segments as the grafts. The assemblies were then subjected to covalent stabilization within vesicle walls with ester-containing cross-links by radical polymerization of MEA moieties, thereby leading to hollow nanogel particles. Taking the advantage of retaining a low quantity of payload within polymer layer-enclosed aqueous chambers through the entire loading process, doxorubicin (DOX) in the external bulk phase can be effectively transported into the gel membrane and bound therein via electrostatic interactions with ionized AAc residues and hydrogen-bond pairings with PNIPAAm grafts at pH 7.4. With the environmental pH being reduced (e.g., from 7.4 to 5.0) at 37 °C, the extensive disruption of AAc/DOX complexes due to the reduced ionization of AAc residues within the gel layer and the pronounced shrinkage of nanogels enable the rapid release of DOX species from drug-loaded hollow nanogels. By contrast, the drug liberation at 4 °C was severally restricted, particularly at pH 7.4 at which the DOX molecules remain strongly bound with ionized AAc residues and PNIPAAm grafts. The in vitro characterizations suggest that the DOX-loaded hollow nanogel particles after being internalized by HeLa cells via endocytosis can rapidly release the payload within acidic endosomes or lysosomes. This will then lead to significant drug accumulation in nuclei (within 1 h) and a cytotoxic effect comparable to free drug. This work demonstrates that the novel DOX-loaded hollow nanogel particles show great promise of therapeutic efficacy for potential anticancer treatment.
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Affiliation(s)
- Wen-Hsuan Chiang
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu 300, Taiwan
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Chiang WH, Lan YJ, Huang YC, Chen YW, Huang YF, Lin SC, Chern CS, Chiu HC. Multi-scaled polymersomes from self-assembly of octadecanol-modified dextrans. POLYMER 2012. [DOI: 10.1016/j.polymer.2012.03.030] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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41
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Huang WC, Chiang WH, Huang YF, Lin SC, Shih ZF, Chern CS, Chiang CS, Chiu HC. Nano-scaled pH-responsive polymeric vesicles for intracellular release of doxorubicin. J Drug Target 2011; 19:944-53. [DOI: 10.3109/1061186x.2011.632012] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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42
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Huang YF, Chiang WH, Tsai PL, Chern CS, Chiu HC. Novel hybrid vesicles co-assembled from a cationic lipid and PAAc-g-mPEG with pH-triggered transmembrane channels for controlled drug release. Chem Commun (Camb) 2011; 47:10978-80. [PMID: 21909548 DOI: 10.1039/c1cc14793e] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This work presents an important example of novel hybrid vesicles with pH-triggered transmembrane channels prepared by co-assembly of poly(acrylic acid)-g-poly(monomethoxy ethylene glycol) (PAAc-g-mPEG) with a cationic lipid, didodecyldimethylammonium bromide (DDAB), via electrostatic interaction for effective doxorubicin (DOX) release.
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Affiliation(s)
- Yi-Fong Huang
- Department of Chemical Engineering, National Chung Hsing University, Taichung 402, Taiwan
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Chiang WH, Hsu YH, Chen YW, Chern CS, Chiu HC. Thermoresponsive Interpolymeric Complex Assemblies from Co-association of Linear PAAc Homopolymers with PNIPAAm Segments Containing PAAc-Based Graft Copolymer. MACROMOL CHEM PHYS 2011. [DOI: 10.1002/macp.201100124] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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44
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Chiang WH, Hsu YH, Chern CS, Chiu HC. Two-stage thermally induced stable colloidal assemblies from PAAc/PNIPAAm/mPEG graft copolymer in water. POLYMER 2011. [DOI: 10.1016/j.polymer.2011.03.046] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Chiang WH, Hsu YH, Tang FF, Chern CS, Chiu HC. Temperature/pH-induced morphological regulations of shell cross-linked graft copolymer assemblies. POLYMER 2010. [DOI: 10.1016/j.polymer.2010.10.038] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Chiang WH, Hsu YH, Lou TW, Chern CS, Chiu HC. Effects of mPEG Grafts on Morphology and Cross-Linking of Thermally Induced Micellar Assemblies from PAAc-Based Graft Copolymers in Aqueous Phase. Macromolecules 2009. [DOI: 10.1021/ma900263j] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Wen-Hsuan Chiang
- Department of Chemical Engineering, National Chung Hsing University, Taichung 402, Taiwan, and Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei 106, Taiwan
| | - Yuan-Hung Hsu
- Department of Chemical Engineering, National Chung Hsing University, Taichung 402, Taiwan, and Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei 106, Taiwan
| | - Tzu-Wei Lou
- Department of Chemical Engineering, National Chung Hsing University, Taichung 402, Taiwan, and Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei 106, Taiwan
| | - Chorng-Shyan Chern
- Department of Chemical Engineering, National Chung Hsing University, Taichung 402, Taiwan, and Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei 106, Taiwan
| | - Hsin-Cheng Chiu
- Department of Chemical Engineering, National Chung Hsing University, Taichung 402, Taiwan, and Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei 106, Taiwan
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Chiang WH, Hsu YH, Chern CS, Chiu HC. Thermally Induced Polymeric Assemblies from the PAAc-Based Copolymer Containing Both PNIPAAm and mPEG Grafts in Water. J Phys Chem B 2009; 113:4187-96. [DOI: 10.1021/jp8106292] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Wen-Hsuan Chiang
- Department of Chemical Engineering, National Chung Hsing University, Taichung 402, Taiwan, and Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei 106, Taiwan
| | - Yuan-Hung Hsu
- Department of Chemical Engineering, National Chung Hsing University, Taichung 402, Taiwan, and Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei 106, Taiwan
| | - Chorng-Shyan Chern
- Department of Chemical Engineering, National Chung Hsing University, Taichung 402, Taiwan, and Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei 106, Taiwan
| | - Hsin-Cheng Chiu
- Department of Chemical Engineering, National Chung Hsing University, Taichung 402, Taiwan, and Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei 106, Taiwan
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Hsu YH, Chiang WH, Chen MC, Chern CS, Chiu HC. Effects of SDS on the thermo- and pH-sensitive structural changes of the poly(acrylic acid)-based copolymer containing both poly(N-isopropylacrylamide) and monomethoxy poly(ethylene glycol) grafts in water. Langmuir 2006; 22:6764-70. [PMID: 16863220 DOI: 10.1021/la060229d] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
The effects of SDS on the structural changes of the thermally induced polymeric micelles from a graft copolymer comprising poly(acrylic acid) (PAAc) as the backbone and poly(N-isopropylacrylamide) (PNIPAAm) and monomethoxy poly(ethylene glycol) (mPEG) as the grafts in aqueous solution are studied. At low temperature, SDS micelles form via the hydrophobic association of SDS molecules with the PNIPAAm grafts at a critical aggregation concentration of SDS (cac(SDS)) much lower than its critical micelle concentration. Consequently, the critical aggregation temperature of the graft copolymer is elevated. The corresponding structure of the thermally induced polymeric micelles is characterized by an abrupt reduction in the particle size and an increased tendency toward formation of the monocore structure with a more compact and hydrophobic PNIPAAm microdomain being developed. On the other hand, upon the polymeric micelle formation at high temperature, the copolymer-bound SDS micelle structure is disrupted and the dissociated SDS molecules migrate to the core-shell interface with their alkyl chains residing in the liquidlike region of the hydrophobic PNIPAAm microdomain. The correlation between the polymeric particles and copolymer-bound micelles is further substantiated by showing the change of the colloidal particle size in response to changes in cac(SDS) via adjusting the pH of the aqueous copolymer/SDS solutions.
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Affiliation(s)
- Yuan-Hung Hsu
- Department of Chemical Engineering, National Chung Hsing University, Taichung 402, Taiwan
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Hsu YH, Chiang WH, Chen CH, Chern CS, Chiu HC. Thermally Responsive Interactions between the PEG and PNIPAAm Grafts Attached to the PAAc Backbone and the Corresponding Structural Changes of Polymeric Micelles in Water. Macromolecules 2005. [DOI: 10.1021/ma0512713] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yuan-Hung Hsu
- Department of Chemical Engineering, National Chung Hsing University, Taichung 402, Taiwan, and Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei 106, Taiwan
| | - Wen-Hsuan Chiang
- Department of Chemical Engineering, National Chung Hsing University, Taichung 402, Taiwan, and Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei 106, Taiwan
| | - Chien-Hsien Chen
- Department of Chemical Engineering, National Chung Hsing University, Taichung 402, Taiwan, and Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei 106, Taiwan
| | - Chorng-Shyan Chern
- Department of Chemical Engineering, National Chung Hsing University, Taichung 402, Taiwan, and Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei 106, Taiwan
| | - Hsin-Cheng Chiu
- Department of Chemical Engineering, National Chung Hsing University, Taichung 402, Taiwan, and Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei 106, Taiwan
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Lee WF, Chiang WH. Swelling and drug-release behavior of the poly(AA-co-N-vinyl pyrrolidone)/chitosan interpenetrating polymer network hydrogels. J Appl Polym Sci 2003. [DOI: 10.1002/app.13353] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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