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Lima MRN, Le KPN, Chakhalian D, Mao Y, Kohn J, Devore DI. Tyrosine-derived polymeric surfactant nanospheres insert cholesterol in cell membranes. J Colloid Interface Sci 2023; 644:264-274. [PMID: 37120875 DOI: 10.1016/j.jcis.2023.04.045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 03/22/2023] [Accepted: 04/11/2023] [Indexed: 05/02/2023]
Abstract
HYPOTHESIS The design of biodegradable tyrosine-derived polymeric surfactants (TyPS) through the use of calculated thermodynamic parameters could lead to phospholipid membrane surface modifiers capable of controlling cellular properties such as viability. Delivery of cholesterol by TyPS nanospheres into membrane phospholipid domains could provide further controlled modulation of membrane physical and biological properties. EXPERIMENT Calculated Hansen solubility parameters (∂T) and hydrophile:lipophile balances (HLB) were applied to design and synthesize a small family of diblock and triblock TyPS with different hydrophobic blocks and PEG hydrophilic blocks. Self-assembled TyPS/cholesterol nanospheres were prepared in aqueous media via co-precipitation. Cholesterol loading and Langmuir film balance surface pressures of phospholipid monolayers were obtained. TyPS and TyPS/cholesterol nanosphere effects on human dermal cell viability were evaluated by cell culture using poly(ethylene glycol) (PEG) and Poloxamer 188 as controls. FINDINGS Stable TyPS nanospheres incorporated between 1% and 5% cholesterol. Triblock TyPS formed nanosphere with dimensions significantly smaller than diblock TyPS nanospheres. In accord calculated thermodynamic parameters, cholesterol binding increased with increasing TyPS hydrophobicity. TyPS inserted into phospholipid monolayer films in a manner consistent with their thermodynamic properties and TyPS/cholesterol nanospheres delivered cholesterol into the films. Triblock TyPS/cholesterol nanospheres increased human dermal cell viability, which was indicative of potentially beneficial TyPS effects on cell membrane surface properties.
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Affiliation(s)
- Mariana R N Lima
- Department of Chemistry and Chemical Biology, Rutgers University, 123 Bevier Rd, Piscataway, NJ 08854, USA.
| | - Kim-Phuong N Le
- Department of Chemistry and Chemical Biology, Rutgers University, 123 Bevier Rd, Piscataway, NJ 08854, USA.
| | - Daniel Chakhalian
- Department of Chemistry and Chemical Biology, Rutgers University, 123 Bevier Rd, Piscataway, NJ 08854, USA.
| | - Yong Mao
- Department of Chemistry and Chemical Biology, Rutgers University, 123 Bevier Rd, Piscataway, NJ 08854, USA.
| | - Joachim Kohn
- Department of Chemistry and Chemical Biology, Rutgers University, 123 Bevier Rd, Piscataway, NJ 08854, USA.
| | - David I Devore
- Department of Chemistry and Chemical Biology, Rutgers University, 123 Bevier Rd, Piscataway, NJ 08854, USA; Department of Biomedical Engineering, Rutgers University, 599 Taylor Rd, Piscataway, NJ 08854, USA.
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Chang CY, Tai JA, Sakaguchi Y, Nishikawa T, Hirayama Y, Yamashita K. Enhancement of polyethylene glycol-cell fusion efficiency by novel application of transient pressure using a jet injector. FEBS Open Bio 2023; 13:478-489. [PMID: 36651034 PMCID: PMC9989930 DOI: 10.1002/2211-5463.13557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Revised: 12/14/2022] [Accepted: 01/13/2023] [Indexed: 01/19/2023] Open
Abstract
Cell-cell fusion involves the fusion of somatic cells into a single hybrid cell. It is not only a physiological process but also an important cell engineering technology which can be applied to various fields, such as regenerative medicine, antibody engineering, genetic engineering, and cancer therapy. There are three major methods of cell fusion: electrical cell fusion, polyethylene glycol (PEG) cell fusion, and virus-mediated cell fusion. Although PEG cell fusion is the most economical approach and does not require expensive instrumentation, it has a poor fusion rate and induces a high rate of cell cytotoxicity. To improve the fusion rate of the PEG method, we combined it with the pyro-drive jet injector (PJI). PJI provides instant pressure instead of cell agitation to increase the probability of cell-to-cell contact and shorten the distance between cells in the process of cell fusion. Here, we report that this improved fusion method not only decreased cell cytotoxicity during the fusion process, but also increased fusion rate compared with the conventional PEG method. Furthermore, we tested the functionality of cells fused using the PJI-PEG method and found them to be comparable to those fused using the conventional PEG method in terms of their application for dendritic cell (DC)-tumor cell fusion vaccine production; in addition, the PJI-PEG method demonstrated excellent performance in hybridoma cell preparation. Taken together, our data indicate that this method improves cell fusion efficiency as compared to the PEG method and thus has the potential for use in various applications that require cell fusion technology.
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Affiliation(s)
- Chin Yang Chang
- Department of Device Application for Molecular Therapeutics, Graduate School of Medicine, Osaka University, Japan
| | - Jiayu A Tai
- Department of Device Application for Molecular Therapeutics, Graduate School of Medicine, Osaka University, Japan
| | - Yuko Sakaguchi
- Medical Device Division, Industry Business Unit, Safety Strategic Business Unit, Daicel Co., Osaka, Japan
| | - Tomoyuki Nishikawa
- Department of Device Application for Molecular Therapeutics, Graduate School of Medicine, Osaka University, Japan
| | - Yayoi Hirayama
- Medical Device Division, Industry Business Unit, Safety Strategic Business Unit, Daicel Co., Osaka, Japan
| | - Kunihiko Yamashita
- Department of Device Application for Molecular Therapeutics, Graduate School of Medicine, Osaka University, Japan.,Medical Device Division, Industry Business Unit, Safety Strategic Business Unit, Daicel Co., Osaka, Japan.,Medical Device Development, Medical Device Division, Industry Business Unit, Safety Strategic Business Unit, Daicel Co., Osaka, Japan
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Wang XJ, Shu GF, Xu XL, Peng CH, Lu CY, Cheng XY, Luo XC, Li J, Qi J, Kang XQ, Jin FY, Chen MJ, Ying XY, You J, Du YZ, Ji JS. Combinational protective therapy for spinal cord injury medicated by sialic acid-driven and polyethylene glycol based micelles. Biomaterials 2019; 217:119326. [PMID: 31288173 DOI: 10.1016/j.biomaterials.2019.119326] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Revised: 06/27/2019] [Accepted: 06/29/2019] [Indexed: 12/27/2022]
Abstract
Spinal cord injury (SCI) leads to immediate disruption of neuronal membranes and loss of neurons, followed by extensive secondary injury process. Treatment of SCI still remains a tremendous challenge clinically. Minocycline could target comprehensive secondary injury via anti-inflammatory, anti-oxidant and anti-apoptotic mechanisms. Polyethylene glycol (PEG), a known sealing agent, is able to seal the damaged cell membranes and reduce calcium influx, thereby exerting neuroprotective capacity. Here, an E-selectin-targeting sialic acid - polyethylene glycol - poly (lactic-co-glycolic acid) (SAPP) copolymer was designed for delivering hydrophobic minocycline to achieve combinational therapy of SCI. The obtained SAPP copolymer could self-assemble into micelles with critical micelle concentration being of 13.40 μg/mL, and effectively encapsulate hydrophobic minocycline. The prepared drug-loaded micelles (SAPPM) displayed sustained drug release over 72 h, which could stop microglia activation and exhibited excellent neuroprotective capacity in vitro. The SAPP micelles were efficiently accumulated in the lesion site of SCI rats via the specific binding between sialic acid and E-selectin. Due to the targeting distribution and combinational effect between PEG and minocycline, SAPPM could obviously reduce the area of lesion cavity, and realize more survival of axons and myelin sheaths from the injury, thus distinctly improving hindlimb functional recovery of SCI rats and conferring superior therapeutic effect in coparison with other groups. Our work presented an effective and safe strategy for SCI targeting therapy. Besides, neuroprotective capacity of PEG deserves further investigation on other central nervous system diseases.
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Affiliation(s)
- Xiao-Juan Wang
- Institute of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058, PR China; Department of Pharmacy, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, 310003, PR China
| | - Gao-Feng Shu
- Institute of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058, PR China; Key Laboratory of Imaging Diagnosis and Minimally Invasive Intervention Research, Lishui Hospital of Zhejiang University, Lishui, 323000, PR China
| | - Xiao-Ling Xu
- Institute of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058, PR China
| | - Chen-Han Peng
- Institute of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058, PR China
| | - Chen-Ying Lu
- Key Laboratory of Imaging Diagnosis and Minimally Invasive Intervention Research, Lishui Hospital of Zhejiang University, Lishui, 323000, PR China
| | - Xing-Yao Cheng
- Key Laboratory of Imaging Diagnosis and Minimally Invasive Intervention Research, Lishui Hospital of Zhejiang University, Lishui, 323000, PR China
| | - Xiang-Chao Luo
- Key Laboratory of Imaging Diagnosis and Minimally Invasive Intervention Research, Lishui Hospital of Zhejiang University, Lishui, 323000, PR China
| | - Jie Li
- Key Laboratory of Imaging Diagnosis and Minimally Invasive Intervention Research, Lishui Hospital of Zhejiang University, Lishui, 323000, PR China
| | - Jing Qi
- Institute of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058, PR China
| | - Xu-Qi Kang
- Institute of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058, PR China
| | - Fei-Yang Jin
- Institute of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058, PR China
| | - Min-Jiang Chen
- Key Laboratory of Imaging Diagnosis and Minimally Invasive Intervention Research, Lishui Hospital of Zhejiang University, Lishui, 323000, PR China
| | - Xiao-Ying Ying
- Institute of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058, PR China
| | - Jian You
- Institute of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058, PR China
| | - Yong-Zhong Du
- Institute of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058, PR China.
| | - Jian-Song Ji
- Key Laboratory of Imaging Diagnosis and Minimally Invasive Intervention Research, Lishui Hospital of Zhejiang University, Lishui, 323000, PR China.
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Ren X, Kim CY, Canavero S. Bridging the gap: Spinal cord fusion as a treatment of chronic spinal cord injury. Surg Neurol Int 2019; 10:51. [PMID: 31528389 PMCID: PMC6743693 DOI: 10.25259/sni-19-2019] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Accepted: 02/06/2019] [Indexed: 12/15/2022] Open
Abstract
Despite decades of animal experimentation, human translation with cell grafts, conduits, and other strategies has failed to cure patients with chronic spinal cord injury (SCI). Recent data show that motor deficits due to spinal cord transection in animal models can be reversed by local application of fusogens, such as Polyethylene glycol (PEG). Results proved superior at short term over all other treatments deployed in animal studies, opening the way to human trials. In particular, removal of the injured spinal cord segment followed by PEG fusion of the two ends along with vertebral osteotomy to shorten the spine holds the promise for a cure in many cases.
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Affiliation(s)
- Xiaoping Ren
- Hand and Microsurgery Center, Second Affiliated Hospital of Harbin Medical University, Nangang, Harbin, China
- State-Province Key Laboratories of Biomedicine-Pharmaceutics, Harbin Medical University, Nangang, Harbin, China
- Heilongjiang Medical Science Institute, Harbin Medical University, Nangang, Harbin, China
| | - C-Yoon Kim
- Department of Stem Cell Biology, School of Medicine, Konkuk University, Seoul, Korea
| | - Sergio Canavero
- HEAVEN-GEMINI International Collaborative Group, Turin, Italy
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Nichifor M, Schacht EH, Seymour LW, Anderson D, Shoaibi M. Cytotoxicity and Anticancer Activity of Macromolecular Prodrugs of 5-Fluorouracil. J BIOACT COMPAT POL 2016. [DOI: 10.1177/088391159701200401] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Polymeric conjugates of 5-fluorouracil (5-FU) were synthesized by covalent attachment of tetrapeptide chains with 2-(5-fluorouracil-1-yl)glycine ethyl ester [Gly(FU)OEt] as the C-terminus, to poly(ethylene glycol) (PEG) and dextran (Dex). Cytotoxicity of these conjugates was compared with free 5-FU against the murine colorectal carcinoma cell line C26. All the conjugates displayed lower cytotoxicity than 5-FU. The chemical structure and the configuration of the tetrapeptide chains influenced the activity of the conjugates. Materials containing the tetrapeptide Gly-Phe-Gly-Gly(FU)OEt (l,d), with Dex-based conjugates were more cytotoxic than the analogue PEG-based conjugate. PEG-Gly-Phe-Gly-Gly(FU)OEt (l,d) administered to mice at doses of 150 and 250 mg 5-FU equivalent/kg, following by inoculation of C26 tumor cells, mediated much less toxicity than equivalent doses of free 5-FU. The anticancer activity achieved using free and polymer-bound drugs were comparable, although decreased toxicity of the conjugate should facilitate administration of increased doses with improved efficacy.
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Affiliation(s)
- Marieta Nichifor
- Department of Organic Chemistry, Polymer Materials Research Group, University of Ghent, Krijgslaan 281 S4 bis, B-9000 Ghent, Belgium
| | - Etienne H. Schacht
- Department of Organic Chemistry, Polymer Materials Research Group, University of Ghent, Krijgslaan 281 S4 bis, B-9000 Ghent, Belgium
| | - Leonard W. Seymour
- CRC Institute for Cancer Studies, University of Birmingham, United Kingdom
| | - Dave Anderson
- CRC Institute for Cancer Studies, University of Birmingham, United Kingdom
| | - Mahmood Shoaibi
- CRC Institute for Cancer Studies, University of Birmingham, United Kingdom
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Effect of DSPE-PEG on compound action potential, injury potential and ion concentration following compression in ex vivo spinal cord. Neurosci Lett 2016; 620:50-6. [DOI: 10.1016/j.neulet.2016.03.045] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2015] [Revised: 03/01/2016] [Accepted: 03/24/2016] [Indexed: 01/20/2023]
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Kouhzaei S, Rad I, Mousavidoust S, Mobasheri H. Protective effect of low molecular weight polyethylene glycol on the repair of experimentally damaged neural membranes in rat’s spinal cord. Neurol Res 2013; 35:415-23. [DOI: 10.1179/1743132812y.0000000133] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
Affiliation(s)
| | - Iman Rad
- University of TehranTehran, Iran
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The Neuroprotective Ability of Polyethylene Glycol is Affected by Temperature in Ex Vivo Spinal Cord Injury Model. J Membr Biol 2013; 246:613-9. [DOI: 10.1007/s00232-013-9574-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2013] [Accepted: 06/04/2013] [Indexed: 11/26/2022]
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