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Wibowo A, Mumtaziah, Rachmawati SA, Fitriyatul Q, Wulan Asri LAT, Aimon AH, Suratman R. The Influence of Chitosan Concentration on Polyelectrolytes Complexes (PECs) of Chitosan – Poly-2-Acrylamido-2-Methylprophane Sulfonic Acid (PAMPS) as Potential Drug Carrier in Pulmonary Delivery Application. ACTA ACUST UNITED AC 2019. [DOI: 10.1088/1757-899x/547/1/012028] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Kalaska B, Kamiński K, Miklosz J, Nakai K, Yusa SI, Pawlak D, Nowakowska M, Mogielnicki A, Szczubiałka K. Anticoagulant Properties of Poly(sodium 2-(acrylamido)-2-methylpropanesulfonate)-Based Di- and Triblock Polymers. Biomacromolecules 2018; 19:3104-3118. [DOI: 10.1021/acs.biomac.8b00691] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Bartlomiej Kalaska
- Department of Pharmacodynamics, Medical University of Bialystok, Mickiewicza 2c, 15-089 Bialystok, Poland
| | - Kamil Kamiński
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Kraków, Poland
| | - Joanna Miklosz
- Department of Pharmacodynamics, Medical University of Bialystok, Mickiewicza 2c, 15-089 Bialystok, Poland
| | - Keita Nakai
- Department of Applied Chemistry, Graduate School of Engineering, University of Hyogo, 2167 Shosha, Himeji, Hyogo 671-2280, Japan
| | - Shin-Ichi Yusa
- Department of Applied Chemistry, Graduate School of Engineering, University of Hyogo, 2167 Shosha, Himeji, Hyogo 671-2280, Japan
| | - Dariusz Pawlak
- Department of Pharmacodynamics, Medical University of Bialystok, Mickiewicza 2c, 15-089 Bialystok, Poland
| | - Maria Nowakowska
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Kraków, Poland
| | - Andrzej Mogielnicki
- Department of Pharmacodynamics, Medical University of Bialystok, Mickiewicza 2c, 15-089 Bialystok, Poland
| | - Krzysztof Szczubiałka
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Kraków, Poland
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Xu B, Gu Y, Miyamoto M, Balamurugan AN, Cui W, Imamura M, Iwata H, Inoue K. The Influence of the Anticomplement Synthetic Sulfonic Polymers on the Function of Pancreatic Islets: An In Vitro Study. Cell Transplant 2017. [DOI: 10.3727/000000001783986468] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
In a previous experiment, we demonstrated the anticomplementary efficacy of poly(stryrene sulfonic acid) (PSSa) and poly(2-acrylamido-2-methyl propane sulfonic acid) (PAMPS). The aim of this study was to examine their influence on the function of pancreatic islets in vitro. In this study, after culturing the rat islets with RPMI-1640 culture medium containing different concentrations of soluble PSSa or PAMPS for 24 h at 37°C, we performed morphological and functional examination of the rat islets. We found that the islets maintained their normal morphology regardless of whether they were in the PSSa or PAMPS groups when the concentrations of soluble PSSa or PAMPS in the media were below 1 g/dl. In the static incubation study, the islets cultured in the PAMPS groups showed significantly high insulin secretory response to glucose challenge but those in the PSSa groups lost the response when the concentrations of soluble PSSa or PAMPS in the media were below 1 g/dl. The PAMPS not only had strong anticomplementry effect, but also maintained the good insulin secretory capacity of the islets. These results indicated that PAMPS is a promising bioartificial material for future clinical application of biohybrid artificial pancreas preparation. It is well suitable for xenotransplantation experiments.
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Affiliation(s)
- Baoyou Xu
- First Department of Surgery and Surgical Basic Science, Graduate School of Medicine, Kyoto University, Japan
| | - Yuanjun Gu
- Institute for Frontier Medical Sciences, Kyoto University, Japan
| | - Masaaki Miyamoto
- Institute for Frontier Medical Sciences, Kyoto University, Japan
| | | | - Wanxing Cui
- First Department of Surgery and Surgical Basic Science, Graduate School of Medicine, Kyoto University, Japan
| | - Masayuki Imamura
- First Department of Surgery and Surgical Basic Science, Graduate School of Medicine, Kyoto University, Japan
| | - Hiroo Iwata
- Institute for Frontier Medical Sciences, Kyoto University, Japan
| | - Kazutomo Inoue
- Institute for Frontier Medical Sciences, Kyoto University, Japan
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Xu B, Iwata H, Miyamoto M, Balamurugan AN, Murakami Y, Cui W, Imamura M, Inoue K. Functional Comparison of the Single-Layer Agarose Microbeads and the Developed Three-Layer Agarose Microbeads as the Bioartificial Pancreas: An In Vitro Study. Cell Transplant 2017. [DOI: 10.3727/000000001783986567] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
In this study, the insulin secretory characteristics of the microencapsulated hamster islets were studied during long-term culture. The hamster islets were encapsulated as single-layer agarose microbeads or three-layer agarose microbeads with agarose and agarose containing poly(styrene sulfonic acid) (PSSa), respectively. The influence of PSSa on the function of the rat islets microencapsulted in three-layer microbeads was primarily monitored. The aim of this study was to examine the influence of the PSSa on the in vitro function of the islets encapsulated in the agarose/PSSa microbeads compared with single-layer agarose microbeads during long-term culture. The microbeads were cultured for 30 days in medium of Eagle's MEM at 37°C in 5% CO2 and 95% air. The basal insulin secretion into the culture medium was measured daily during the first 12 days and two times per week until 30 days. The microbeads were subjected to static incubation test on the 10th, 20th, and 30th day during culture. The basal insulin secretion level of the agarose/PSSa microbeads was significantly higher than that of single-layer agarose microbeads. The static incubation tests revealed a similar pattern of insulin secretion from both microbeads when they were exposed to high glucose challenge. In the static incubation test, both could significantly increase insulin release to more than 6.61 times (stimulation index) in response to high glucose stimulation and could significantly decrease when glucose concentration returned from high glucose to low glucose on the 10th, 20th, and 30th day of culture. This study demonstrated that the hamster islets enclosed in agarose/PSSa hydrogel not only continuously secreted basal amounts of insulin, but also maintained their response to high glucose stimulation similar to the agarose microbeads. The above results together with those of our previous in vivo study suggest that the three-layer microbeads (agarose/PSSa) are well suitable for xenotransplantation of islets for the clinical application.
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Affiliation(s)
- Baoyou Xu
- First Department of Surgery and Surgical Basic Science, Graduate School of Medicine, Kyoto University, Japan
| | - Hiroo Iwata
- Institute for Frontier Medical Sciences, Kyoto University, Japan
| | - Masaaki Miyamoto
- Institute for Frontier Medical Sciences, Kyoto University, Japan
| | | | | | - Wanxing Cui
- First Department of Surgery and Surgical Basic Science, Graduate School of Medicine, Kyoto University, Japan
| | - Masayuki Imamura
- First Department of Surgery and Surgical Basic Science, Graduate School of Medicine, Kyoto University, Japan
| | - Kazutomo Inoue
- Institute for Frontier Medical Sciences, Kyoto University, Japan
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Suzuki R, Yoshioka Y, Kitano E, Yoshioka T, Oka H, Okamoto T, Okada N, Tsutsumi Y, Nakagawa S, Miyazaki JI, Kitamura H, Mayumi T. Development of a Novel Cytomedical Treatment that can Protect Entrapped Cells from Host Humoral Immunity. Cell Transplant 2017; 11:787-797. [DOI: 10.3727/000000002783985305] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Cell therapy is expected to relieve the shortage of donors needed for organ transplantation. When patients are treated with allogeneic or xenogeneic cells, it is necessary to develop a means by which to isolate administered cells from an immune attack by the host. We have developed “cytomedicine, ” which consists of functional cells entrapped in semipermeable polymer, and previously reported that alginate-poly-l-lysine-alginate microcapsules and agarose microbeads could protect the entrapped cells from injury by cellular immunity. However, their ability to isolate from humoral immunity was insufficient. It is well known that the complement system plays an essential role in rejection of transplanted cells by host humoral immunity. Therefore, the goal of the present study was to develop a novel cytomedical device containing a polymer capable of inactivating complement. In the screening of various polymers, polyvinyl sulfate (PVS) exhibited high anticomplement activity and low cytotoxicity. Murine pancreatic β-cell line (MIN6 cell) entrapped in agarose microbeads containing PVS maintained viability and physiological insulin secretion, replying in response to glucose concentration, and resisted rabbit antisera in vitro. PVS inhibited hemolysis of sensitized sheep erythrocytes (EAs) and rabbit erythrocytes by the complement system. This result suggests that PVS inhibits both the classical and alternative complement pathways of the complement system. Next, the manner in which PVS exerts its effects on complement components was examined. PVS was found to inhibit generation of C4a and Ba generation in activation of the classical and alternative pathways, respectively. Moreover, when the EAC1 cells, which were carrying C1 on the EAs, treated with PVS were exposed to C1-deficient serum, hemolysis decreased in a PVS dose-dependent manner. These results suggest that PVS inhibits C1 in the classical pathway and C3 convertase formation in the alternative pathway. Therefore, PVS may be a useful polymer for developing an anticomplement device for cytomedical therapy.
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Affiliation(s)
- Ryo Suzuki
- Department of Biopharmaceutics, Graduate School of Pharmaceutical Sciences, Osaka University, Osaka 565-0871, Japan
| | - Yasuo Yoshioka
- Department of Biopharmaceutics, Graduate School of Pharmaceutical Sciences, Osaka University, Osaka 565-0871, Japan
| | - Etsuko Kitano
- Department of Medical Technology, Osaka Prefectural College of Health Sciences, Osaka 538-8555, Japan
| | - Tatsunobu Yoshioka
- Department of Biopharmaceutics, Graduate School of Pharmaceutical Sciences, Osaka University, Osaka 565-0871, Japan
| | - Hiroaki Oka
- Department of Biopharmaceutics, Graduate School of Pharmaceutical Sciences, Osaka University, Osaka 565-0871, Japan
| | - Takayuki Okamoto
- Department of Biopharmaceutics, Graduate School of Pharmaceutical Sciences, Osaka University, Osaka 565-0871, Japan
| | - Naoki Okada
- Department of Biopharmaceutics, Kyoto Pharmaceutical University, Kyoto 607-8414, Japan
| | - Yasuo Tsutsumi
- Department of Biopharmaceutics, Graduate School of Pharmaceutical Sciences, Osaka University, Osaka 565-0871, Japan
| | - Shinsaku Nakagawa
- Department of Biopharmaceutics, Graduate School of Pharmaceutical Sciences, Osaka University, Osaka 565-0871, Japan
| | - Jun-Ichi Miyazaki
- Department of Nutrition and Physiological Chemistry, Osaka University Medical School, Osaka 565-0871, Japan
| | - Hajime Kitamura
- Department of Medical Technology, Osaka Prefectural College of Health Sciences, Osaka 538-8555, Japan
| | - Tadanori Mayumi
- Department of Biopharmaceutics, Graduate School of Pharmaceutical Sciences, Osaka University, Osaka 565-0871, Japan
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Blood coagulation and platelet adhesion on polyaniline films. Colloids Surf B Biointerfaces 2015; 133:278-85. [DOI: 10.1016/j.colsurfb.2015.06.008] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2015] [Revised: 06/01/2015] [Accepted: 06/03/2015] [Indexed: 11/21/2022]
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Bober P, Humpolíček P, Pacherník J, Stejskal J, Lindfors T. Conducting polyaniline based cell culture substrate for embryonic stem cells and embryoid bodies. RSC Adv 2015. [DOI: 10.1039/c5ra07504a] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Noncytotoxic polyaniline–poly(2-acrylamido-2-methyl-1-propanesulfonate) films which are electrically conducting at the physiological pH were applied as cell culture substrate. The films demonstrate selective interaction with specific target cells.
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Affiliation(s)
- Patrycja Bober
- Åbo Akademi University
- Johan Gadolin Process Chemistry Centre
- Faculty of Science and Engineering
- Laboratory of Analytical Chemistry
- FIN-20500 Turku
| | - Petr Humpolíček
- Tomas Bata University in Zlin
- Centre of Polymer Systems
- 760 05 Zlin
- Czech Republic
- Tomas Bata University in Zlin
| | - Jiří Pacherník
- Masaryk University Brno
- Faculty of Sciences
- Institute of Experimental Biology
- 625 00 Brno
- Czech Republic
| | - Jaroslav Stejskal
- Institute of Macromolecular Chemistry
- Academy of Sciences of the Czech Republic
- 162 06 Prague 6
- Czech Republic
| | - Tom Lindfors
- Åbo Akademi University
- Johan Gadolin Process Chemistry Centre
- Faculty of Science and Engineering
- Laboratory of Analytical Chemistry
- FIN-20500 Turku
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