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Zhao H, Lin X, Wang L, Yang Y, Zhu H, Li Z, Su Z, Yu R, Zhang S. Pore-blocking steric mass-action model for adsorption of bioparticles. J Chromatogr A 2024; 1726:464968. [PMID: 38723492 DOI: 10.1016/j.chroma.2024.464968] [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: 02/14/2024] [Revised: 05/01/2024] [Accepted: 05/04/2024] [Indexed: 05/23/2024]
Abstract
The steric mass-action (SMA) model has been widely reported to describe the adsorption of proteins in different types of chromatographic adsorbents. Here in the present work, a pore-blocking steric mass-action model (PB-SMA) was developed for the adsorption of large-size bioparticles, which usually exhibit the unique pore-blocking characteristic on the adsorbent and thus lead to a fraction of ligands in the deep channels physically inaccessible to bioparticles adsorption, instead of being shielded due to steric hindrance by adsorbed bioparticles. This unique phenomenon was taken into account by introducing an additional parameter, Lin, which is defined as the inaccessible ligand densities in the physically blocked pore area, into the PB-SMA model. This fraction of ligand densities (Lin) will be deducted from the total ligand (Lt) for model development, thus the steric factor (σ) in the proposed PB-SMA will reflect the steric shielding effect on binding sites by adsorbed bioparticles more accurately than the conventional SMA model, which assumes that all ligands on the adsorbent have the same accessibility to the bioparticles. Based on a series of model assumptions, a PB-SMA model was firstly developed for inactivated foot-and-mouth disease virus (iFMDV) adsorption on immobilized metal affinity chromatography (IMAC) adsorbents. Model parameters for static adsorption including equilibrium constant (K), characteristic number of binding sites (n), and steric factor (σ) were determined. Compared with those derived from the conventional SMA model, the σ values derived from the PB-SMA model were dozens of times smaller and much closer to the theoretical maximum number of ligands shielded by a single adsorbed iFMDV, indicating the modified model was more accurate for bioparticles adsorption. The applicability of the PB-SMA model was further validated by the adsorption of hepatitis B surface antigen virus-like particles (HBsAg VLPs) on an ion exchange adsorbent with reasonably improved accuracy. Thus, it is considered that the PB-SMA model would be more accurate in describing the adsorption of bioparticles on different types of chromatographic adsorbents.
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Affiliation(s)
- Hanying Zhao
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Ministry of Education, West China School of Pharmacy, Sichuan University, Chengdu, 610041, China; State Key Laboratory of Biochemical Engineering, Key Laboratory of Biopharmaceutical Preparation and Delivery (CAS), Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
| | - Xuan Lin
- State Key Laboratory of Biochemical Engineering, Key Laboratory of Biopharmaceutical Preparation and Delivery (CAS), Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
| | - Liuyang Wang
- State Key Laboratory of Biochemical Engineering, Key Laboratory of Biopharmaceutical Preparation and Delivery (CAS), Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
| | - Yanli Yang
- Tecon Pharmaceutical Co., Ltd., Suzhou, 215000, China
| | - Hongyu Zhu
- State Key Laboratory of Biochemical Engineering, Key Laboratory of Biopharmaceutical Preparation and Delivery (CAS), Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China; Division of Molecular Science, Graduate School of Science and Technology, Gunma University, Kiryu, 376-8515, Japan
| | - Zhengjun Li
- State Key Laboratory of Biochemical Engineering, Key Laboratory of Biopharmaceutical Preparation and Delivery (CAS), Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
| | - Zhiguo Su
- State Key Laboratory of Biochemical Engineering, Key Laboratory of Biopharmaceutical Preparation and Delivery (CAS), Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
| | - Rong Yu
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Ministry of Education, West China School of Pharmacy, Sichuan University, Chengdu, 610041, China.
| | - Songping Zhang
- State Key Laboratory of Biochemical Engineering, Key Laboratory of Biopharmaceutical Preparation and Delivery (CAS), Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China.
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Wang L, Lin X, Sheng Y, Zhu H, Li Z, Su Z, Yu R, Zhang S. Synthesis of a crystalline zeolitic imidazole framework-8 nano-coating on single environment-sensitive viral particles for enhanced immune responses. NANOSCALE ADVANCES 2023; 5:1433-1449. [PMID: 36866262 PMCID: PMC9972853 DOI: 10.1039/d2na00767c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Accepted: 02/06/2023] [Indexed: 06/18/2023]
Abstract
Encapsulating antigens with zeolitic imidazole framework-8 (ZIF-8) exhibits many advantages in vaccine development. However, most viral antigens with complex particulate structures are sensitive to pH or ionic strength, which cannot tolerate harsh synthesis conditions of ZIF-8. Balancing the viral integrity and the growth of ZIF-8 crystals is crucial for the successful encapsulation of these environment-sensitive antigens in ZIF-8. Here, we explored the synthesis of ZIF-8 on inactivated foot and mouth disease virus (known as 146S), which is easily disassociated into no immunogenic subunits under the existing ZIF-8 synthesis conditions. Our results showed that intact 146S could be encapsulated into ZIF-8 with high embedding efficiency by lowering the pH of the 2-MIM solution to 9.0. The size and morphology of 146S@ZIF-8 could be further optimized by increasing the amount of Zn2+ or adding cetyltrimethylammonium bromide (CTAB). 146S@ZIF-8 with a uniform diameter of about 49 nm could be synthesized by adding 0.01% CTAB, which was speculated to be composed of single 146S armored with nanometer-scale ZIF-8 crystal networks. Plenty of histidine on the 146S surface forms a unique His-Zn-MIM coordination in the near vicinity of 146S particles, which greatly increases the thermostability of 146S by about 5 °C, and the nano-scale ZIF-8 crystal coating exhibited extraordinary stability to resist EDTE-treatment. More importantly, the well-controlled size and morphology enabled 146S@ZIF-8(0.01% CTAB) to facilitate antigen uptake. The immunization of 146S@ZIF-8(4×Zn2+) or 146S@ZIF-8(0.01% CTAB) significantly enhanced the specific antibody titers and promoted the differentiation of memory T cells without adding another immunopotentiator. This study reported for the first time the strategy of the synthesis of crystalline ZIF-8 on an environment-sensitive antigen and demonstrated that the nano-size and appropriate morphology of ZIF-8 are crucial to exert adjuvant effects, thus expanding the application of MOFs in vaccine delivery.
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Affiliation(s)
- Liuyang Wang
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Ministry of Education, West China School of Pharmacy, Sichuan University Chengdu 610041 China
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences Beijing 100190 China +86-10-82544958
| | - Xuan Lin
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences Beijing 100190 China +86-10-82544958
| | - Yanan Sheng
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences Beijing 100190 China +86-10-82544958
| | - Hongyu Zhu
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences Beijing 100190 China +86-10-82544958
- Division of Molecular Science, Graduate School of Science and Technology, Gunma University Kiryu 376-8515 Japan
| | - Zhengjun Li
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences Beijing 100190 China +86-10-82544958
| | - Zhiguo Su
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences Beijing 100190 China +86-10-82544958
| | - Rong Yu
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Ministry of Education, West China School of Pharmacy, Sichuan University Chengdu 610041 China
| | - Songping Zhang
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences Beijing 100190 China +86-10-82544958
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Li J, Chang Y, Yang S, Zhou G, Wei Y. Formulation enhanced the stability of Foot-and-mouth virus and prolonged vaccine storage. Virol J 2022; 19:207. [PMID: 36463170 PMCID: PMC9719126 DOI: 10.1186/s12985-022-01928-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Accepted: 11/14/2022] [Indexed: 12/05/2022] Open
Abstract
Foot-and-mouth disease (FMD) is a highly contagious viral disease that affects cloven-hoofed animals. Vaccination is the most effective measure to control FMD. However, FMDV particles are prone to dissociation, leading to insufficient potency of vaccine. Based on this characteristic, a combination of twenty percentage trehalose, 500 mM NaCl and 3 mM CuSO4·5H2O was developed to increase viral stability. Heating-resistance test showed that FMDV infectivity was maintained when formulated with formulation. Additionally, the half-life of FMDV inactivation was prolonged remarkably. Sequencing analysis demonstrated that viral genome could not be altered in serial passages. Vaccine stability was monitored for up to 1 year at 4 °C, with a higher level of 146S content remained. This study suggested that the formulation could protect FMDV against massive structural breakdown and extend the shelf life of vaccine. Our findings could provide strategy to develop more solutions for the stabilization of viral vaccine.
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Affiliation(s)
- Jing Li
- grid.411734.40000 0004 1798 5176College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, China ,China Agricultural Vet.Bio.Science and Technology Co, Ltd, Lanzhou, China
| | - Yanyan Chang
- China Agricultural Vet.Bio.Science and Technology Co, Ltd, Lanzhou, China
| | - Shunli Yang
- grid.454892.60000 0001 0018 8988State Key Laboratory of Veterinary Etiological Biology, National Foot-and-Mouth Disease Reference Laboratory, Lanzhou Veterinary Research Institute Chinese Academy of Agricultural Sciences, Lanzhou, People’s Republic of China
| | - Guangqing Zhou
- grid.454892.60000 0001 0018 8988State Key Laboratory of Veterinary Etiological Biology, National Foot-and-Mouth Disease Reference Laboratory, Lanzhou Veterinary Research Institute Chinese Academy of Agricultural Sciences, Lanzhou, People’s Republic of China
| | - Yanming Wei
- grid.411734.40000 0004 1798 5176College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, China
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Li J, Wei Y, Zhang R, Yang H. Enhanced stability of Foot-and-Mouth Disease Vaccine Antigens with a novel formulation. Pharm Dev Technol 2022; 27:759-765. [PMID: 36004557 DOI: 10.1080/10837450.2022.2116456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
Abstract
The structural instability of inactivated foot-and-mouth disease virus antigen hinders the development of vaccine industry. The use of an inexpensive, biocompatible formulation to slow down the degradation of antigen would address the problem. Here, PBS was showed to be effective in stabilizing 146S and hence determined as basic solution buffer. Excipients such as Trehalose, Sucrose, Arginine, Cysteine, Calcium chloride, BSA and Ascorbic acid were found to protect 146S from massive structural breakdown. Using orthogonal test, we confirmed the novel formulation as a combination of 5% (w/v) trehalose, 5% (w/v) sucrose, 0.05 M arginine, 0.01 M cysteine, 0.01 M calcium chloride, 1% (W/V) BSA and 0.001 M ascorbic acid in PBS. The formulation increased vaccine stabilization, with retention rate of 14% after storage at 4 °C for 14 months. Particle size for vaccine was at approximately 220 nm and physicochemical detecting findings were rarely abnormal in morphology and emulsion type. In summary, these results revealed that the novel formulation is beneficial to make FMD vaccine more stable and effective, reducing the dependence on cold storage and delivery.
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Affiliation(s)
- Jing Li
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, China.,China Agricultural VET.BIO.Science and Technology Co, Ltd, Lanzhou, China
| | - Yanming Wei
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, China
| | - Rong Zhang
- China Agricultural VET.BIO.Science and Technology Co, Ltd, Lanzhou, China
| | - Huiqing Yang
- China Agricultural VET.BIO.Science and Technology Co, Ltd, Lanzhou, China
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Lin X, Yang Y, Li S, Li Z, Sheng Y, Su Z, Zhang S. Oil-in-ionic liquid nanoemulsion-based adjuvant simultaneously enhances the stability and immune responses of inactivated foot-and-mouth disease virus. Int J Pharm 2022; 625:122083. [PMID: 35934167 DOI: 10.1016/j.ijpharm.2022.122083] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Revised: 07/24/2022] [Accepted: 08/02/2022] [Indexed: 11/17/2022]
Abstract
Maintaining structural integrity and enhancing stability of inactivated foot-and-mouth disease virus (iFMDV) antigen in adjuvants is crucial to ensure the vaccine potency. Unfortunately, formulation with most reported adjuvants leads to the accelerated dissociation of iFMDV into inactive pentamers. Here, an ionic liquid, i.e., choline and niacin ([Cho][Nic]), which was found to stabilize iFMDV against the acid- and thermo- induced dissociation in buffer solution, was applied to construct a novel oil-in-ionic liquid (o/IL) nanoemulsion adjuvant composed of [Cho][Nic], squalene, and Tween 80. The o/IL nanoemulsion formulated with iFMDV has a monodisperse diameter of 135.8 ± 40.4 nm. The thermostability and long-term stability of iFMDV were remarkably enhanced in o/IL nanoemulsion compared with that in the o/w emulsion without [Cho][Nic] and in the commercial Montanide ISA 206 adjuvant. The o/IL nanoemulsion exerted its adjuvant effects by improving the humoral immune responses. Immunization of o/IL nanoemulsion adjuvanted iFMDV induced specific IgG titers similar to that adjuvanted by Montanide ISA 206 and about 4-fold higher than the un-adjuvanted iFMDV, also promoted the activation of B lymphocytes and the secretion of interleukin-4 in the mice model. This [Cho][Nic]-based o/IL nanoemulsion can serve as a promising adjuvant platform for the foot-and-mouth disease vaccine.
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Affiliation(s)
- Xuan Lin
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, PR China
| | - Yanli Yang
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, PR China
| | - Shuai Li
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, PR China
| | - Zhengjun Li
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, PR China
| | - Yanan Sheng
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Zhiguo Su
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, PR China
| | - Songping Zhang
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, PR China.
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Song Y, Yang Y, Lin X, Zhao Q, Su Z, Ma G, Zhang S. Size exclusion chromatography using large pore size media induces adverse conformational changes of inactivated foot-and-mouth disease virus particles. J Chromatogr A 2022; 1677:463301. [DOI: 10.1016/j.chroma.2022.463301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Revised: 06/30/2022] [Accepted: 07/01/2022] [Indexed: 10/17/2022]
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Li C, Chen W, Lin X, Zhang S, Wang Y, He X, Ren Y. Molecular dynamics study on the stability of foot-and-mouth disease virus particle in salt solution. MOLECULAR SIMULATION 2021. [DOI: 10.1080/08927022.2021.1951262] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Chen Li
- State Key Laboratory of Multiphase Complex System, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, People’s Republic of China
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing, China
| | - Wei Chen
- State Key Laboratory of Multiphase Complex System, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, People’s Republic of China
- Dalian National Laboratory for Clean Energy, Dalian, People’s Republic of China
| | - Xuan Lin
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, People’s Republic of China
| | - Songping Zhang
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, People’s Republic of China
| | - Yufei Wang
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing, China
| | - Xianfeng He
- State Key Laboratory of Multiphase Complex System, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, People’s Republic of China
- School of Chemical Engineering, University of Chinese Academy of Sciences, Beijing, People’s Republic of China
| | - Ying Ren
- State Key Laboratory of Multiphase Complex System, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, People’s Republic of China
- Innovation Academy of Green Manufacture, Chinese Academy of Sciences, Beijing, People’s Republic of China
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