1
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Wang X, Jia B, Lee K, Davis B, Wen C, Wang Y, Zheng H, Wang Y. Biomimetic Bacterial Capsule for Enhanced Aptamer Display and Cell Recognition. J Am Chem Soc 2024; 146:868-877. [PMID: 38153404 DOI: 10.1021/jacs.3c11208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2023]
Abstract
Great effort has been made to encapsulate or coat living mammalian cells for a variety of applications ranging from diabetes treatment to three-dimensional printing. However, no study has reported the synthesis of a biomimetic bacterial capsule to display high-affinity aptamers on the cell surface for enhanced cell recognition. Therefore, we synthesized an ultrathin alginate-polylysine coating to display aptamers on the surface of living cells with natural killer (NK) cells as a model. The results show that this coating-mediated aptamer display is more stable than direct cholesterol insertion into the lipid bilayer. The half-life of the aptamer on the cell surface can be increased from less than 1.5 to over 20 h. NK cells coated with the biomimetic bacterial capsule exhibit a high efficiency in recognizing and killing target cells. Therefore, this work has demonstrated a promising cell coating method for the display of aptamers for enhanced cell recognition.
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Affiliation(s)
- Xuelin Wang
- Department of Biomedical Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Bei Jia
- Penn State Cancer Institute, The Pennsylvania State University College of Medicine, Hershey, Pennsylvania 17033, United States
| | - Kyungsene Lee
- Department of Biomedical Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Brandon Davis
- Department of Biomedical Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Connie Wen
- Department of Biomedical Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Yixun Wang
- Department of Biomedical Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Hong Zheng
- Penn State Cancer Institute, The Pennsylvania State University College of Medicine, Hershey, Pennsylvania 17033, United States
| | - Yong Wang
- Department of Biomedical Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
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2
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Dong J, He Y, Zhang J, Wu Z. Tuning alginate-bentonite microcapsule size and structure for the regulated release of P. putida Rs-198. Chin J Chem Eng 2021. [DOI: 10.1016/j.cjche.2021.03.056] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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3
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Polydimethylsiloxane-customized nanoplatform for delivery of antidiabetic drugs. Ther Deliv 2020; 11:415-429. [DOI: 10.4155/tde-2020-0049] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Aim: To develop a new self-emulsified silicon-grafted-alginate platform for pharmaceutical delivery. The produced biocompatible polymeric blend would be used to encapsulate metformin by a vibrational jet-flow ionotropic gelation process. Materials & methods: Polydimethylsiloxane was homogenized with alginate to prepare a stable polymeric mixture to which metformin was added. A metformin-loaded polymeric vehicle was then pumped through Buchi B-390 into CaCl2 to produce microcapsules. Results & conclusion: The platform showed a powerful, pseudoplastic thixotropic and demonstrated strong, efficient and wide applications of polydimethylsiloxane-customized technology in drug delivery and stability. A substantial improvement in drug loading, encapsulation efficiency and flow properties were noticed in siliconized microcapsules compared with the control.
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4
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Khodabakhsh Aghdam S, Khoshfetrat AB, Rahbarghazi R, Jafarizadeh-Malmiri H, Khaksar M. Collagen modulates functional activity of hepatic cells inside alginate-galactosylated chitosan hydrogel microcapsules. Int J Biol Macromol 2019; 156:1270-1278. [PMID: 31760032 DOI: 10.1016/j.ijbiomac.2019.11.164] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2019] [Revised: 11/12/2019] [Accepted: 11/19/2019] [Indexed: 02/07/2023]
Abstract
To provide comparable hepatic tissue microenvironment and induce functional behavior for hepatocytes, galctosylated-chitosan (GC) as well as collagen (Col) was added to alginate microcapsule coated with extra layer of chitosan. Four different hydrogel groups of alginate/chitosan (AC); alginate-galactosylated chitosan/chitosan (AGC/C); alginate-collagen/chitosan (ACol/C); and alginate-galactosylated chitosan-collagen/chitosan (AGCCol/C) were prepared and characterized for physical properties such as porosity, swelling, degradation rate, and stiffness. Introduction of GC as well as Col to alginate regulated significantly the physical properties of the resultant hydrogels. GC addition decreased dramatically swelling, degradation, pore size and mechanical properties of the resultant hydrogel. However, the influence of GC on the physical properties in the presence of Col (AGCCol/A) was in a reverse manner, as compared to the AGC/C hydrogel. The AGCCol/C microenvironment also promoted proliferation of microencapsulated HepG2 cells, as a model of hepatocyte, compared to the control-matched groups. Biochemical analysis after 10 days revealed a superior effect of AGCCol/C on the secretion of albumin and urea compared to other groups (P < 0.05). These features were coincided with the mRNA up-regulation of P450 and albumin in the AGCCol/C groups compared to the AGC/C and ACol/C groups (P < 0.05). The study demonstrated that enrichment of alginate-based hydrogels with Col and GC could be touted as an appropriate 3D platform for modular hepatic tissue engineering.
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Affiliation(s)
- Shahla Khodabakhsh Aghdam
- Chemical Engineering Faculty, Sahand University of Technology, Tabriz 51335-1996, Iran; Stem Cell and Tissue Engineering Research Laboratory, Sahand University of Technology, Tabriz 51335-1996, Iran
| | - Ali Baradar Khoshfetrat
- Chemical Engineering Faculty, Sahand University of Technology, Tabriz 51335-1996, Iran; Stem Cell and Tissue Engineering Research Laboratory, Sahand University of Technology, Tabriz 51335-1996, Iran.
| | - Reza Rahbarghazi
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; Department of Applied Cell Sciences, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | | | - Majid Khaksar
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
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5
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Liu Y, Li G, Lu H, Yang Y, Liu Z, Shang W, Shen Y. Magnetically Actuated Heterogeneous Microcapsule-Robot for the Construction of 3D Bioartificial Architectures. ACS APPLIED MATERIALS & INTERFACES 2019; 11:25664-25673. [PMID: 31268290 DOI: 10.1021/acsami.9b05517] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Core-shell microcapsules as one type of the most attractive carriers and reactors have been widely applied in the fields of drug screening and tissue engineering owing to their excellent biocompatibility and semi-permeability. Yet, the spatial organization of microcapsules with specific shapes into three-dimensional (3D) ordered architectures still remains a big challenge. Here, we present a method to assemble shape-controllable core-shell microcapsules using an untethered magnetic microcapsule-robot. The microcapsule-robot with the shape-matching design can grab the building components tightly during the transportation and assembly processes. The core-shell feature of the microcapsule effectively prevents the magnetic nanoparticles from interacting with bioactive materials. The assembly results of cell-loaded heterogeneous microcapsules reveal that this strategy not only allows the magnetic microcapsule-robot to work in different workspaces in vitro for the creation of 3D constructions but also offers a noninvasive and dynamical manipulation platform by remotely controlling the position and orientation of the soft and liquid-like microcapsule components individually.
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Affiliation(s)
- Yang Liu
- Department of Biomedical Engineering , City University of Hong Kong , Tat Chee Avenue , Kowloon , Hong Kong 999077 , China
| | - Gen Li
- Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences , Shenzhen 518055 , China
- Beijing Institute of Technology , Beijing 100081 , China
| | - Haojian Lu
- Department of Biomedical Engineering , City University of Hong Kong , Tat Chee Avenue , Kowloon , Hong Kong 999077 , China
| | - Yuanyuan Yang
- Department of Biomedical Engineering , City University of Hong Kong , Tat Chee Avenue , Kowloon , Hong Kong 999077 , China
| | - Zeyang Liu
- Stem Cell Therapy and Regenerative Medicine Lab , Tsinghua-Berkeley Shenzhen Institute , Shenzhen 518055 , China
| | - Wanfeng Shang
- Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences , Shenzhen 518055 , China
| | - Yajing Shen
- Department of Biomedical Engineering , City University of Hong Kong , Tat Chee Avenue , Kowloon , Hong Kong 999077 , China
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6
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Khanmohammadi M, Sakai S, Taya M. Characterization of encapsulated cells within hyaluronic acid and alginate microcapsules produced via horseradish peroxidase-catalyzed crosslinking. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2019; 30:295-307. [DOI: 10.1080/09205063.2018.1562637] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Mehdi Khanmohammadi
- Department of Tissue Engineering and Applied Cell Sciences, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran
- Division of Chemical Engineering, Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka, Japan
| | - Shinji Sakai
- Division of Chemical Engineering, Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka, Japan
| | - Masahito Taya
- Division of Chemical Engineering, Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka, Japan
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7
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Lou R, Xie H, Zheng H, Ren Y, Gao M, Guo X, Song Y, Yu W, Liu X, Ma X. Alginate-based microcapsules with galactosylated chitosan internal for primary hepatocyte applications. Int J Biol Macromol 2016; 93:1133-1140. [PMID: 27667543 DOI: 10.1016/j.ijbiomac.2016.09.078] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2016] [Revised: 09/06/2016] [Accepted: 09/20/2016] [Indexed: 12/23/2022]
Abstract
Alginate-galactosylated chitosan/polylysine (AGCP) microcapsules with excellent stability and high permeability were developed and employed in primary hepatocyte applications. The galactosylated chitosan (GC), synthesized via the covalent coupling of lactobionic acid (LA) with low molecular weight and water-soluble chitosan (CS), was ingeniously introduced into the core of alginate microcapsules by regulating the pH of gelling bath. The internal GC of the microcapsules simultaneously provided a large number of binding sites for the hepatocytes and further promoted the hepatocyte-matrix interactions via the recognition of asialoglycoprotein receptors (ASGPRs) on the hepatocyte surface, and afforded the AGCP microcapsules an excellent stability via the electrostatic interactions with alginate. As a consequence, primary hepatocytes in AGCP microcapsules demonstrated enhanced viability, urea synthesis, albumin secretion, and P-450 enzyme activity, showing great prospects for hepatocyte applications in microcapsule system.
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Affiliation(s)
- Ruyun Lou
- Laboratory of Biomedical Material Engineering, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, PR China; University of the Chinese Academy of Sciences, Beijing 100049, PR China
| | - Hongguo Xie
- Laboratory of Biomedical Material Engineering, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, PR China
| | - Huizhen Zheng
- Laboratory of Biomedical Material Engineering, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, PR China; University of the Chinese Academy of Sciences, Beijing 100049, PR China
| | - Ying Ren
- Laboratory of Biomedical Material Engineering, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, PR China; University of the Chinese Academy of Sciences, Beijing 100049, PR China
| | - Meng Gao
- Laboratory of Biomedical Material Engineering, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, PR China; University of the Chinese Academy of Sciences, Beijing 100049, PR China
| | - Xin Guo
- Laboratory of Biomedical Material Engineering, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, PR China
| | - Yizhe Song
- Laboratory of Biomedical Material Engineering, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, PR China; University of the Chinese Academy of Sciences, Beijing 100049, PR China
| | - Weiting Yu
- Laboratory of Biomedical Material Engineering, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, PR China.
| | - Xiudong Liu
- College of Environment and Chemical Engineering, Dalian University, Dalian Economic Technological Development Zone, Dalian 116622, PR China.
| | - Xiaojun Ma
- Laboratory of Biomedical Material Engineering, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, PR China
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8
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Development of a Biomimetic Chondroitin Sulfate-modified Hydrogel to Enhance the Metastasis of Tumor Cells. Sci Rep 2016; 6:29858. [PMID: 27432752 PMCID: PMC4949442 DOI: 10.1038/srep29858] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2016] [Accepted: 06/22/2016] [Indexed: 02/08/2023] Open
Abstract
Tumor metastasis with resistance to anticancer therapies is the main cause of death in cancer patients. It is necessary to develop reliable tumor metastasis models that can closely recapitulate the pathophysiological features of the native tumor tissue. In this study, chondroitin sulfate (CS)-modified alginate hydrogel beads (ALG-CS) are developed to mimic the in vivo tumor microenvironment with an abnormally increased expression of CS for the promotion of tumor cell metastasis. The modification mechanism of CS on alginate hydrogel is due to the cross-linking between CS and alginate molecules via coordination of calcium ions, which enables ALG-CS to possess significantly different physical characteristics than the traditional alginate beads (ALG). And quantum chemistry calculations show that in addition to the traditional egg-box structure, novel asymmetric egg-box-like structures based on the interaction between these two kinds of polymers are also formed within ALG-CS. Moreover, tumor cell metastasis is significantly enhanced in ALG-CS compared with that in ALG, as confirmed by the increased expression of MMP genes and proteins and greater in vitro invasion ability. Therefore, ALG-CS could be a convenient and effective 3D biomimetic scaffold that would be used to construct standardized tumor metastasis models for tumor research and anticancer drug screening.
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9
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Song Y, Zheng G, Zhang D, Lv Y, Li N, Wang X, Yu W, Ma X. Fabrication of a tunable hydrogel membrane for constructing indirect cell coculture system. J Appl Polym Sci 2016. [DOI: 10.1002/app.43100] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Yizhe Song
- Laboratory of Biomedical Material Engineering; Dalian Institute of Chemical Physics, Chinese Academy of Sciences; 457 Zhongshan Road Dalian 116023 People's Republic of China
- University of the Chinese Academy of Sciences; 19 Yuquan Road Beijing 100049 People's Republic of China
| | - Guoshuang Zheng
- Laboratory of Biomedical Material Engineering; Dalian Institute of Chemical Physics, Chinese Academy of Sciences; 457 Zhongshan Road Dalian 116023 People's Republic of China
- University of the Chinese Academy of Sciences; 19 Yuquan Road Beijing 100049 People's Republic of China
| | - Demeng Zhang
- Laboratory of Biomedical Material Engineering; Dalian Institute of Chemical Physics, Chinese Academy of Sciences; 457 Zhongshan Road Dalian 116023 People's Republic of China
- University of the Chinese Academy of Sciences; 19 Yuquan Road Beijing 100049 People's Republic of China
| | - Yan Lv
- Laboratory of Biomedical Material Engineering; Dalian Institute of Chemical Physics, Chinese Academy of Sciences; 457 Zhongshan Road Dalian 116023 People's Republic of China
- University of the Chinese Academy of Sciences; 19 Yuquan Road Beijing 100049 People's Republic of China
| | - Na Li
- Laboratory of Biomedical Material Engineering; Dalian Institute of Chemical Physics, Chinese Academy of Sciences; 457 Zhongshan Road Dalian 116023 People's Republic of China
- University of the Chinese Academy of Sciences; 19 Yuquan Road Beijing 100049 People's Republic of China
| | - Xiuli Wang
- Department of Histology and Embryology, College of Basic Medical Science; Dalian Medical University; Dalian 116044 People's Republic of China
| | - Weiting Yu
- Laboratory of Biomedical Material Engineering; Dalian Institute of Chemical Physics, Chinese Academy of Sciences; 457 Zhongshan Road Dalian 116023 People's Republic of China
| | - Xiaojun Ma
- Laboratory of Biomedical Material Engineering; Dalian Institute of Chemical Physics, Chinese Academy of Sciences; 457 Zhongshan Road Dalian 116023 People's Republic of China
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10
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Zheng G, Zheng H, Xie H, Liu X, Yu W, Ma X. The cause and influence of sequentially assembling higher and lower deacetylated chitosans on the membrane formation of microcapsule. J Biomed Mater Res A 2015; 104:257-63. [DOI: 10.1002/jbm.a.35562] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2015] [Revised: 08/26/2015] [Accepted: 09/09/2015] [Indexed: 12/21/2022]
Affiliation(s)
- Guoshuang Zheng
- Laboratory of Biomedical Material Engineering; Dalian Institute of Chemical Physics, Chinese Academy of Sciences; Dalian 116023 China
- Laboratory of Biomedical Material Engineering, University of the Chinese Academy of Sciences; Beijing 100049 China
| | - Huizhen Zheng
- Laboratory of Biomedical Material Engineering; Dalian Institute of Chemical Physics, Chinese Academy of Sciences; Dalian 116023 China
- Laboratory of Biomedical Material Engineering, University of the Chinese Academy of Sciences; Beijing 100049 China
| | - Hongguo Xie
- Laboratory of Biomedical Material Engineering; Dalian Institute of Chemical Physics, Chinese Academy of Sciences; Dalian 116023 China
| | - Xiudong Liu
- College of Environment and Chemical Engineering; Dalian University, Dalian Economic Technological Development Zone; Dalian 116622 China
| | - Weiting Yu
- Laboratory of Biomedical Material Engineering; Dalian Institute of Chemical Physics, Chinese Academy of Sciences; Dalian 116023 China
| | - Xiaojun Ma
- Laboratory of Biomedical Material Engineering; Dalian Institute of Chemical Physics, Chinese Academy of Sciences; Dalian 116023 China
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11
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Deng F, Chen L, Zhang Y, Zhao S, Wang Y, Li N, Li S, Guo X, Ma X. Development of a bioreactor based on magnetically stabilized fluidized bed for bioartificial liver. Bioprocess Biosyst Eng 2015; 38:2369-77. [PMID: 26391509 DOI: 10.1007/s00449-015-1472-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2015] [Accepted: 09/07/2015] [Indexed: 12/12/2022]
Abstract
Bioartificial liver (BAL) based on microcapsules has been proposed as a potential treatment for acute liver failure. The bioreactors used in such BAL are usually expected to achieve sufficient flow rate and minimized void volume for effective application. Due to the superiorities in bed pressure drop and operation velocity, magnetically stabilized fluidized beds (MSFBs) show the potential to serve as ideal microcapsule-based bioreactors. In the present study, we attempted to develop a microcapsule-based MSFB bioreactor for bioartificial liver device. Compared to conventional-fluidized bed bioreactors, the bioreactor presented here increased perfusion velocity and decreased void volume significantly. Meanwhile, the mechanical stability as well as the immunoisolation property of magnetite microcapsules were well maintained during the fluidization. Besides, the magnetite microcapsules were found no toxicity to cell survival. Therefore, our study might provide a novel approach for the design of microcapsule-based bioartificial liver bioreactors.
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Affiliation(s)
- Fei Deng
- Laboratory of Biomedical Material Engineering, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, China.,University of Chinese Academy of Sciences, 19 Yuquan Road, Beijing, 100049, China
| | - Li Chen
- Laboratory of Biomedical Material Engineering, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, China.,University of Chinese Academy of Sciences, 19 Yuquan Road, Beijing, 100049, China
| | - Ying Zhang
- Laboratory of Biomedical Material Engineering, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, China.
| | - Shan Zhao
- Laboratory of Biomedical Material Engineering, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, China.,University of Chinese Academy of Sciences, 19 Yuquan Road, Beijing, 100049, China
| | - Yu Wang
- Laboratory of Biomedical Material Engineering, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, China.,University of Chinese Academy of Sciences, 19 Yuquan Road, Beijing, 100049, China
| | - Na Li
- Laboratory of Biomedical Material Engineering, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, China.,University of Chinese Academy of Sciences, 19 Yuquan Road, Beijing, 100049, China
| | - Shen Li
- Laboratory of Biomedical Material Engineering, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, China.,University of Chinese Academy of Sciences, 19 Yuquan Road, Beijing, 100049, China
| | - Xin Guo
- Laboratory of Biomedical Material Engineering, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, China
| | - Xiaojun Ma
- Laboratory of Biomedical Material Engineering, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, China.
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12
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Gao M, Song H, Liu X, Yu W, Ma X. Improved quorum sensing capacity by culturing Vibrio harveyi in microcapsules. J Biosci Bioeng 2015; 121:406-12. [PMID: 26364746 DOI: 10.1016/j.jbiosc.2015.08.010] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2015] [Revised: 07/18/2015] [Accepted: 08/17/2015] [Indexed: 01/08/2023]
Abstract
Microcapsule entrapped low density cells with culture (ELDCwc), different from free cell culture, conferred stronger stress resistance and improved cell viability of microorganisms. In this paper, the quorum sensing (QS) system of Vibrio harveyi was used to investigate changes when cells were cultured in microcapsules. Cells in ELDCwc group grew into cell aggregates, which facilitated cell-cell communication and led to increased bioluminescence intensity. Moreover, the luxS-AI-2 system, a well-studied QS signal pathway, was detected as both luxS gene and the AI-2 signaling molecule, and the results were analyzed with respect to QS capacity of unit cell. The V. harveyi of ELDCwc also showed higher relative gene expression and stronger quorum sensing capacity when compared with free cells. In conclusion, the confined microcapsule space can promote the cell aggregates formation, reduce cell-cell communication distance and increase local concentration of signal molecule, which are beneficial to bacterial QS.
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Affiliation(s)
- Meng Gao
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, PR China; University of the Chinese Academy of Sciences, Beijing 100049, PR China
| | - Huiyi Song
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, PR China; University of the Chinese Academy of Sciences, Beijing 100049, PR China
| | - Xiudong Liu
- College of Environment and Chemical Engineering, Dalian University, Dalian Economic Technological Development Zone, Dalian 116622, PR China
| | - Weiting Yu
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, PR China.
| | - Xiaojun Ma
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, PR China
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13
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Li B, Guan L, Wang K, Zhang D, Wang W, Liu F. Formula and process optimization of controlled-release microcapsules prepared using a coordination assembly and the response surface methodology. J Appl Polym Sci 2015. [DOI: 10.1002/app.42865] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- BeiXing Li
- Key Laboratory of Pesticide Toxicology & Application Technique, Department of Plant Protection; Shandong Agricultural University; Tai'an Shandong People's Republic of China
- Research Center of Pesticide Environmental Toxicology; Shandong Agricultural University; Tai'an Shandong People's Republic of China
| | - Lei Guan
- Key Laboratory of Pesticide Toxicology & Application Technique, Department of Plant Protection; Shandong Agricultural University; Tai'an Shandong People's Republic of China
| | - Kai Wang
- Key Laboratory of Pesticide Toxicology & Application Technique, Department of Plant Protection; Shandong Agricultural University; Tai'an Shandong People's Republic of China
| | - DaXia Zhang
- Key Laboratory of Pesticide Toxicology & Application Technique, Department of Plant Protection; Shandong Agricultural University; Tai'an Shandong People's Republic of China
- Research Center of Pesticide Environmental Toxicology; Shandong Agricultural University; Tai'an Shandong People's Republic of China
| | - WeiChang Wang
- Key Laboratory of Pesticide Toxicology & Application Technique, Department of Plant Protection; Shandong Agricultural University; Tai'an Shandong People's Republic of China
| | - Feng Liu
- Key Laboratory of Pesticide Toxicology & Application Technique, Department of Plant Protection; Shandong Agricultural University; Tai'an Shandong People's Republic of China
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14
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Ashida T, Sakai S, Taya M. Characteristics of Duplex Microcapsules Prepared from an Alginate-Derivative Polymer via Horseradish Peroxidase- and Catalase-Catalyzed Reactions. JOURNAL OF CHEMICAL ENGINEERING OF JAPAN 2015. [DOI: 10.1252/jcej.14we391] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Tomoaki Ashida
- Division of Chemical Engineering, Graduate School of Engineering Science, Osaka University
| | - Shinji Sakai
- Division of Chemical Engineering, Graduate School of Engineering Science, Osaka University
| | - Masahito Taya
- Division of Chemical Engineering, Graduate School of Engineering Science, Osaka University
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15
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Tian M, Han B, Tan H, You C. Preparation and characterization of galactosylated alginate-chitosan oligomer microcapsule for hepatocytes microencapsulation. Carbohydr Polym 2014; 112:502-11. [PMID: 25129774 DOI: 10.1016/j.carbpol.2014.06.025] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2014] [Revised: 06/10/2014] [Accepted: 06/11/2014] [Indexed: 02/05/2023]
Abstract
Galactosylated alginate (GA)-chitosan oligomer microcapsule was prepared to provide a sufficient mechanical stability, a selective permeability and an appropriate three-dimensional (3D) microenvironment for hepatocytes microencapsulation. The microcapsule has a unique asymmetric membrane structure, with a dense layer located in the inner surface and gradually decreasing toward the outside surface. The stable microcapsule was obtained when GA lower than 50%, while the permeability was increased with increasing of GA. A balance between mechanical stability and permeability was achieved through modulating membrane porosity and thickness. The optimal microcapsule displays a selective permeability allowing efficient transport of human serum albumin while effectively blocking immunoglobulin G. Hepatocytes exhibited high and long term viability (>92%), proliferability, multicellular spheroid morphology, and enhancement of liver-specific functions in the microcapsule wherein galactose moieties present chemical cues to support cell-matrix interactions while the 3D structure of the microcapsule behaves physical cues to facilitate cell-cell interactions.
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Affiliation(s)
- Meng Tian
- Department of Neurosurgery, West China Hospital, Sichuan University, Chengdu 610041, Sichuan, PR China
| | - Bo Han
- Department of Surgery, Keck School of Medicine, University of Southern California, Los Angeles, CA 90032, USA; Department of Biomedical Engineering, University of Southern California, Los Angeles, CA 90032, USA
| | - Hong Tan
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, Sichuan, PR China
| | - Chao You
- Department of Neurosurgery, West China Hospital, Sichuan University, Chengdu 610041, Sichuan, PR China.
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Rokstad AMA, Lacík I, de Vos P, Strand BL. Advances in biocompatibility and physico-chemical characterization of microspheres for cell encapsulation. Adv Drug Deliv Rev 2014; 67-68:111-30. [PMID: 23876549 DOI: 10.1016/j.addr.2013.07.010] [Citation(s) in RCA: 114] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2013] [Revised: 06/28/2013] [Accepted: 07/12/2013] [Indexed: 02/06/2023]
Abstract
Cell encapsulation has already shown its high potential and holds the promise for future cell therapies to enter the clinics as a large scale treatment option for various types of diseases. The advancement in cell biology towards this goal has to be complemented with functional biomaterials suitable for cell encapsulation. This cannot be achieved without understanding the close correlation between cell performance and properties of microspheres. The ongoing challenges in the field of cell encapsulation require a critical view on techniques and approaches currently utilized to characterize microspheres. This review deals with both principal subjects of microspheres characterization in the cell encapsulation field: physico-chemical characterization and biocompatibility. The up-to-day knowledge is summarized and discussed with the focus to identify missing knowledge and uncertainties, and to propose the mandatory next steps in characterization of microspheres for cell encapsulation. The primary conclusion of this review is that further success in development of microspheres for cell therapies cannot be accomplished without careful selection of characterization techniques, which are employed in conjunction with biological tests.
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Affiliation(s)
- Anne Mari A Rokstad
- Department of Cancer Research and Molecular Medicine, Norwegian University of Science and Technology (NTNU), Prinsesse Kristinasgt. 1, N-7491 Trondheim, Norway; The Central Norway Health Authority (RHA), Trondheim, Norway.
| | - Igor Lacík
- Department for Biomaterials Research, Polymer Institute of the Slovak Academy of Sciences, Dubravska cesta 9, 845 41 Bratislava, Slovakia.
| | - Paul de Vos
- Immunoendocrinology, Department of Pathology and Medical Biology, University of Groningen, University Medical Center Groningen, Hanzeplein 1, EA11, 9700 RB Groningen, The Netherlands.
| | - Berit L Strand
- Department of Cancer Research and Molecular Medicine, Norwegian University of Science and Technology (NTNU), Prinsesse Kristinasgt. 1, N-7491 Trondheim, Norway; Department of Biotechnology, NTNU, Sem Saelandsvei 6/8, N-7491 Trondheim, Norway; The Central Norway Health Authority (RHA), Trondheim, Norway.
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Ubiquinone accumulation improves osmotic-stress tolerance in Escherichia coli. Nat Chem Biol 2014; 10:266-72. [DOI: 10.1038/nchembio.1437] [Citation(s) in RCA: 107] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2013] [Accepted: 11/25/2013] [Indexed: 11/08/2022]
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