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Feng YH, Guo WX, Li ZL, Hu LF, Liu Y, Jing LY, Wang J, Shahbazi MA, Chen BZ, Guo XD. Assessing the structural stability and drug encapsulation efficiency of poly(ethylene glycol)-poly(L-lactic acid) nanoparticles loaded with atorvastatin calcium: Based on dissipative particle dynamics. Int J Biol Macromol 2024; 267:131436. [PMID: 38593897 DOI: 10.1016/j.ijbiomac.2024.131436] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2023] [Revised: 03/09/2024] [Accepted: 04/04/2024] [Indexed: 04/11/2024]
Abstract
Block polymer micelles have been proven highly biocompatible and effective in improving drug utilization for delivering atorvastatin calcium. Therefore, it is of great significance to measure the stability of drug-loading nano micelles from the perspective of block polymer molecular sequence design, which would provide theoretical guidance for subsequent clinical applications. This study aims to investigate the structural stability of drug-loading micelles formed by two diblock/triblock polymers with various block sequences through coarse-grained dissipative particle dynamics (DPD) simulations. From the perspectives of the binding strength of poly(L-lactic acid) (PLLA) and polyethylene glycol (PEG) in nanoparticles, hydrophilic bead surface coverage, and the morphological alteration of nanoparticles induced by shear force, the ratio of hydrophilic/hydrophobic sequence length has been observed to affect the stability of nanoparticles. We have found that for diblock polymers, PEG3kda-PLLA2kda has the best stability (corresponding hydrophilic coverage ratio is 0.832), while PEG4kda-PLLA5kda has the worst (coverage ratio 0.578). For triblock polymers, PEG4kda-PLLA2kda-PEG4kda has the best stability (0.838), while PEG4kda-PLLA5kda-PEG4kda possesses the worst performance (0.731), and the average performance on stability is better than nanoparticles composed of diblock polymers.
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Affiliation(s)
- Yun Hao Feng
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China; Beijing Laboratory of Biomedical Materials, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Wei Xin Guo
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China; Beijing Laboratory of Biomedical Materials, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Zhuo Lin Li
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China; Beijing Laboratory of Biomedical Materials, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Liu Fu Hu
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China; Beijing Laboratory of Biomedical Materials, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Yue Liu
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China; Beijing Laboratory of Biomedical Materials, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Li Yue Jing
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China; Beijing Laboratory of Biomedical Materials, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Jianhao Wang
- School of Pharmacy, Changzhou University, Changzhou, Jiangsu 213164, China.
| | - Mohammad-Ali Shahbazi
- Department of Biomedical Engineering, University Medical Center Groningen, University of Groningen, Antonius Deusinglaan 1, 9713 AV Groningen, the Netherlands; Department of Pharmaceutical Biomaterials, School of Pharmacy, Zanjan University of Medical Sciences, 45139-56184 Zanjan, Iran; W.J. Kolff Institute for Biomedical Engineering and Materials Science, University of Groningen, Antonius Deusinglaan 1, 9713 AV Groningen, the Netherlands.
| | - Bo Zhi Chen
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China; Beijing Laboratory of Biomedical Materials, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China.
| | - Xin Dong Guo
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China; Beijing Laboratory of Biomedical Materials, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China.
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Liu X, Min Q, Song H, Yue A, Li Q, Zhou Q, Han W. Potentiating humoral and cellular immunity using a novel hybrid polymer-lipid nanoparticle adjuvant for HBsAg-VLP vaccine. J Nanobiotechnology 2023; 21:441. [PMID: 37993870 PMCID: PMC10666313 DOI: 10.1186/s12951-023-02116-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Accepted: 09/16/2023] [Indexed: 11/24/2023] Open
Abstract
Aluminium adjuvants are commonly used in vaccines to stimulate the immune system, but they have limited ability to promote cellular immunity which is necessary for clearing viral infections like hepatitis B. Current adjuvants that do promote cellular immunity often have undesired side effects due to the immunostimulants they contain. In this study, a hybrid polymer lipid nanoparticle (HPLNP) was developed as an efficient adjuvant for the hepatitis B surface antigen (HBsAg) virus-like particle (VLP) vaccine to potentiate both humoral and cellular immunity. The HPLNP is composed of FDA approved polyethylene glycol-b-poly (L-lactic acid) (PEG-PLLA) polymer and cationic lipid 1, 2-dioleoyl-3-trimethylammonium-propane (DOTAP), and can be easily prepared by a one-step method. The cationic optimised vaccine formulation HBsAg/HPLNP (w/w = 1/600) can maximise the cell uptake of the antigen due to the electrostatic adsorption between the vaccine nanoparticle and the cell membrane of antigen-presenting cells. The HPLNP prolonged the retention of the antigen at the injection site and enhanced the lymph node drainage of antigen, resulting in a higher concentration of serum anti-HBsAg IgG compared to the HBsAg group or the HBsAg/Al group after the boost immunisation in mice. The HPLNP also promoted a strong Th1-driven immune response, as demonstrated by the significantly improved IgG2a/IgG1 ratio, increased production of IFN-γ, and activation of CD4 + and CD8 + T cells in the spleen and lymph nodes. Importantly, the HPLNP demonstrated no systemic toxicity during immunisation. The advantages of the HPLNP, including good biocompatibility, easy preparation, low cost, and its ability to enhance both humoral and cellular immune responses, suggest its suitability as an efficient adjuvant for protein-based vaccines such as HBsAg-VLP. These findings highlight the promising potential of the HPLNP as an HBV vaccine adjuvant, offering an alternative to aluminium adjuvants currently used in vaccines.
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Affiliation(s)
- Xuhan Liu
- Department of Emergency Medicine, Shenzhen University General Hospital, Shenzhen University Clinical Medical Academy, Shenzhen University, No. 1098 Xueyuan Avenue, Shenzhen, 518000, Guangdong, China
| | - Qiuxia Min
- Department of Pharmacy, First People's Hospital of Yunnan Province, Kunming University of Science and Technology, No. 157 Jinbi Road, Kunming, 650034, Yunnan, China
| | - Huiping Song
- Department of Emergency Medicine, Shenzhen University General Hospital, Shenzhen University Clinical Medical Academy, Shenzhen University, No. 1098 Xueyuan Avenue, Shenzhen, 518000, Guangdong, China
- First School of Clinical Medicine, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Aochun Yue
- Department of Emergency Medicine, Shenzhen University General Hospital, Shenzhen University Clinical Medical Academy, Shenzhen University, No. 1098 Xueyuan Avenue, Shenzhen, 518000, Guangdong, China
- Centre of Integrated Chinese and Western Medicine, School of Clinical Medicine, Qingdao University, Qingdao, China
| | - Qin Li
- Department of Emergency Medicine, Shenzhen University General Hospital, Shenzhen University Clinical Medical Academy, Shenzhen University, No. 1098 Xueyuan Avenue, Shenzhen, 518000, Guangdong, China
| | - Qing Zhou
- The Center for Biomedical Research, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China.
| | - Wei Han
- Department of Emergency Medicine, Shenzhen University General Hospital, Shenzhen University Clinical Medical Academy, Shenzhen University, No. 1098 Xueyuan Avenue, Shenzhen, 518000, Guangdong, China.
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Liu X, Liu Y, Yang X, Lu X, Xu XN, Zhang J, Chen R. Potentiating the Immune Responses of HBsAg-VLP Vaccine Using a Polyphosphoester-Based Cationic Polymer Adjuvant. ACS APPLIED MATERIALS & INTERFACES 2023; 15:48871-48881. [PMID: 37816068 PMCID: PMC10614196 DOI: 10.1021/acsami.3c07491] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Accepted: 09/26/2023] [Indexed: 10/12/2023]
Abstract
Virus-like particle (VLP)-based vaccines are required to be associated with a suitable adjuvant to potentiate their immune responses. Herein, we report a novel, biodegradable, and biocompatible polyphosphoester-based amphiphilic cationic polymer, poly(ethylene glycol)-b-poly(aminoethyl ethylene phosphate) (PEG-PAEEP), as a Hepatitis B surface antigen (HBsAg)-VLP vaccine adjuvant. The polymer adjuvant effectively bound with HBsAg-VLP through electrostatic interactions to form a stable vaccine nanoformulation with a net positive surface charge. The nanoformulations exhibited enhanced cellular uptake by macrophages. HBsAg-VLP/PEG-PAEEP induced a significantly higher HBsAg-specific IgG titer in mice than HBsAg-VLP alone after second immunization, indicative of the antigen-dose sparing advantage of PEG-PAEEP. Furthermore, the nanoformulations exhibited a favorable biocompatibility and in vivo tolerability. This work presents the PEG-PAEEP copolymer as a promising vaccine adjuvant and as a potentially effective alternative to aluminum adjuvants.
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Affiliation(s)
- Xuhan Liu
- Department
of Chemical Engineering, Imperial College
London, South Kensington Campus, London SW7 2AZ, U.K.
- Department
of Emergency Medicine, Shenzhen University
General Hospital, Shenzhen University, Shenzhen 518051, China
| | - Yifan Liu
- Department
of Chemical Engineering, Imperial College
London, South Kensington Campus, London SW7 2AZ, U.K.
| | - Xiaoyu Yang
- AIM
Honesty Biopharmaceutical Co., Ltd, Dalian 116620, China
| | - Xinyu Lu
- Department
of Chemical Engineering, Imperial College
London, South Kensington Campus, London SW7 2AZ, U.K.
| | - Xiao-Ning Xu
- Department
of Infectious Diseases, Imperial College
London, London W12 0NN, U.K.
| | - Jiancheng Zhang
- AIM
Honesty Biopharmaceutical Co., Ltd, Dalian 116620, China
| | - Rongjun Chen
- Department
of Chemical Engineering, Imperial College
London, South Kensington Campus, London SW7 2AZ, U.K.
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Yang X, Xie X, Liu S, Ma W, Zheng Z, Wei H, Yu CY. Engineered Exosomes as Theranostic Platforms for Cancer Treatment. ACS Biomater Sci Eng 2023; 9:5479-5503. [PMID: 37695590 DOI: 10.1021/acsbiomaterials.3c00745] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/12/2023]
Abstract
Tremendous progress in nanotechnology and nanomedicine has made a significant positive effect on cancer treatment by integrating multicomponents into a single multifunctional nanosized delivery system for combinatorial therapies. Although numerous nanocarriers developed so far have achieved excellent therapeutic performance in mouse models via elegant integration of chemotherapy, photothermal therapy, photodynamic therapy, sonodynamic therapy, and immunotherapy, their synthetic origin may still cause systemic toxicity, immunogenicity, and preferential detection or elimination by the immune system. Exosomes, endogenous nanosized particles secreted by multiple biological cells, could be absorbed by recipient cells to facilitate intercellular communication and content delivery. Therefore, exosomes have emerged as novel cargo delivery tools and attracted considerable attention for cancer diagnosis and treatment due to their innate stability, biological compatibility, and biomembrane penetration capacity. Exosome-related properties and functions have been well-documented; however, there are few reviews, to our knowledge, with a focus on the combination of exosomes and nanotechnology for the development of exosome-based theranostic platforms. To make a timely review on this hot subject of research, we summarize the basic information, isolation and functionalization methodologies, diagnostic and therapeutic potential of exosomes in various cancers with an emphasis on the description of exosome-related nanomedicine for cancer theranostics. The existing appealing challenges and outlook in exosome clinical translation are finally introduced. Advanced biotechnology and nanotechnology will definitely not only promote the integration of intrinsic advantages of natural nanosized exosomes with traditional synthetic nanomaterials for modulated precise cancer treatment but also contribute to the clinical translations of exosome-based nanomedicine as theranostic nanoplatforms.
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Affiliation(s)
- Xu Yang
- Postdoctoral Research Station of Basic Medicine, Hengyang Medical College, College of Chemistry and Chemical Engineering, Hunan Province Cooperative, Hengyang, Hunan 421001, China
- Innovation Center for Molecular Target New Drug Study & School of Pharmaceutical Science, University of South China, Hengyang, Hunan 421001, China
| | - Xiangyu Xie
- Innovation Center for Molecular Target New Drug Study & School of Pharmaceutical Science, University of South China, Hengyang, Hunan 421001, China
| | - Songbin Liu
- Postdoctoral Research Station of Basic Medicine, Hengyang Medical College, College of Chemistry and Chemical Engineering, Hunan Province Cooperative, Hengyang, Hunan 421001, China
- Innovation Center for Molecular Target New Drug Study & School of Pharmaceutical Science, University of South China, Hengyang, Hunan 421001, China
| | - Wei Ma
- Postdoctoral Research Station of Basic Medicine, Hengyang Medical College, College of Chemistry and Chemical Engineering, Hunan Province Cooperative, Hengyang, Hunan 421001, China
- Innovation Center for Molecular Target New Drug Study & School of Pharmaceutical Science, University of South China, Hengyang, Hunan 421001, China
| | - Zhi Zheng
- Postdoctoral Research Station of Basic Medicine, Hengyang Medical College, College of Chemistry and Chemical Engineering, Hunan Province Cooperative, Hengyang, Hunan 421001, China
- Innovation Center for Molecular Target New Drug Study & School of Pharmaceutical Science, University of South China, Hengyang, Hunan 421001, China
| | - Hua Wei
- Innovation Center for Molecular Target New Drug Study & School of Pharmaceutical Science, University of South China, Hengyang, Hunan 421001, China
| | - Cui-Yun Yu
- Innovation Center for Molecular Target New Drug Study & School of Pharmaceutical Science, University of South China, Hengyang, Hunan 421001, China
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Cheng P, Liang N, Zhao W, Gong X, Wang W, Sun S. Chitosan-based near-infrared fluorescent micelles for controlled drug delivery and bioimaging in cancer therapy. Eur Polym J 2023. [DOI: 10.1016/j.eurpolymj.2023.111974] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/12/2023]
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Du J, Liu X, Hou Z, Liu X, Yao J, Cheng X, Wang X, Tang R. Acid-sensitive polymeric prodrug micelles for achieving enhanced chemo-photodynamic therapy. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2022.103514] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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