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Cho Y, Lee H, Jeong W, Jung KB, Lee SY, Park S, Yeun J, Kwon O, Son JG, Lee TG, Son MY, Im SG. Long-Term Culture of Human Pluripotent Stem Cells in Xeno-Free Condition Using Functional Polymer Films. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024:e2403952. [PMID: 39015054 DOI: 10.1002/adma.202403952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2024] [Revised: 06/13/2024] [Indexed: 07/18/2024]
Abstract
Human pluripotent stem cells (hPSCs), encompassing human embryonic stem cells (hESCs) and human induced pluripotent stem cells (hiPSCs), hold immense potential in regenerative medicine, offering new opportunities for personalized cell therapies. However, their clinical translation is hindered by the inevitable reliance on xenogeneic components in culture environments. This study addresses this challenge by engineering a fully synthetic, xeno-free culture substrate, whose surface composition is tailored systematically for xeno-free culture of hPSCs. A functional polymer surface, pGC2 (poly(glycidyl methacrylate-grafting-guanidine-co-carboxylic acrylate)), offers excellent cell-adhesive properties as well as non-cytotoxicity, enabling robust hESCs and hiPSCs growth while presenting cost-competitiveness and scalability over Matrigel. This investigation includes comprehensive evaluations of pGC2 across diverse experimental conditions, demonstrating its wide adaptability with various pluripotent stem cell lines, culture media, and substrates. Crucially, pGC2 supports long-term hESCs and hiPSCs expansion, up to ten passages without compromising their stemness and pluripotency. Notably, this study is the first to confirm an identical proteomic profile after ten passages of xeno-free cultivation of hiPSCs on a polymeric substrate compared to Matrigel. The innovative substrate bridges the gap between laboratory research and clinical translation, offering a new promising avenue for advancing stem cell-based therapies.
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Affiliation(s)
- Younghak Cho
- Brain Science Institute, Korea Institute of Science and Technology (KIST), 5, Hwarang-ro 14-gil, Seongbuk-gu, Seoul, 02792, Republic of Korea
- Functional Thin Film Laboratory, Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Hana Lee
- Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, 34141, Republic of Korea
| | - Wonji Jeong
- Functional Thin Film Laboratory, Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Kwang Bo Jung
- Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, 34141, Republic of Korea
| | - Sun Young Lee
- Korea Research Institute of Standards and Science (KRISS), Daejeon, 34141, Republic of Korea
| | - Seonghyeon Park
- Functional Thin Film Laboratory, Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Jemin Yeun
- Functional Thin Film Laboratory, Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Ohman Kwon
- Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, 34141, Republic of Korea
| | - Jin Gyeong Son
- Korea Research Institute of Standards and Science (KRISS), Daejeon, 34141, Republic of Korea
| | - Tae Geol Lee
- Korea Research Institute of Standards and Science (KRISS), Daejeon, 34141, Republic of Korea
| | - Mi-Young Son
- Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, 34141, Republic of Korea
- KRIBB School of Bioscience, Korea University of Science and Technology (UST), Daejeon, 34113, Republic of Korea
- Department of Biological Science, Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - Sung Gap Im
- Functional Thin Film Laboratory, Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
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2
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Lin D, Zhou Z, Zhang M, Yao S, Yuan L, Xu M, Zhang X, Hu X. Electrical Stimulations Generated by P(VDF-TrFE) Films Enhance Adhesion Forces and Odontogenic Differentiation of Dental Pulp Stem Cells (DPSCs). ACS APPLIED MATERIALS & INTERFACES 2024; 16:28029-28040. [PMID: 38775012 DOI: 10.1021/acsami.4c00769] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2024]
Abstract
Biophysical and biochemical cues of biomaterials can regulate cell behaviors. Dental pulp stem cells (DPSCs) in pulp tissues can differentiate to odontoblast-like cells and secrete reparative dentin to form a barrier to protect the underlying pulp tissues and enable complete pulp healing. Promotion of the odontogenic differentiation of DPSCs is essential for dentin regeneration. The effects of the surface potentials of biomaterials on the adhesion and odontogenic differentiation of DPSCs remain unclear. Here, poly(vinylidene fluoride-trifluoro ethylene) (P(VDF-TrFE)) films with different surface potentials were prepared by the spin-coating technique and the contact poling method. The cytoskeletal organization of DPSCs grown on P(VDF-TrFE) films was studied by immunofluorescence staining. Using atomic force microscopy (AFM), the lateral detachment forces of DPSCs from P(VDF-TrFE) films were quantified. The effects of electrical stimulation generated from P(VDF-TrFE) films on odontogenic differentiation of DPSCs were evaluated in vitro and in vivo. The unpolarized, positively polarized, and negatively polarized films had surface potentials of -52.9, +902.4, and -502.2 mV, respectively. DPSCs on both negatively and positively polarized P(VDF-TrFE) films had larger cell areas and length-to-width ratios than those on the unpolarized films (P < 0.05). During the detachment of DPSCs from P(VDF-TrFE) films, the average magnitudes of the maximum detachment forces were 29.4, 72.1, and 53.9 nN for unpolarized, positively polarized, and negatively polarized groups, respectively (P < 0.05). The polarized films enhanced the mineralization activities and increased the expression levels of the odontogenic-related proteins of DPSCs compared to the unpolarized films (P < 0.05). The extracellular signal-regulated kinase (ERK) signaling pathway was involved in the odontogenic differentiation of DPSCs as induced by surface charge. In vivo, the polarized P(VDF-TrFE) films enhanced adhesion of DPSCs and promoted the odontogenic differentiation of DPSCs by electrical stimulation, demonstrating a potential application of electroactive biomaterials for reparative dentin formation in direct pulp capping.
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Affiliation(s)
- Danle Lin
- Hospital of Stomatology, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Stomatology, Guangzhou 510055, China
- Department of Stomatology, Xiang'an Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen 361101, China
| | - Ziyu Zhou
- Hospital of Stomatology, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Stomatology, Guangzhou 510055, China
| | - Mengdan Zhang
- Hospital of Stomatology, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Stomatology, Guangzhou 510055, China
| | - Songyou Yao
- Guangdong Provincial Key Laboratory of Magnetoelectric Physics and Devices, School of Physics, Sun Yat-sen University, Guangzhou 510275, China
- Centre for Physical Mechanics and Biophysics, School of Physics, Sun Yat-sen University, Guangzhou 510275, China
| | - Lingling Yuan
- Hospital of Stomatology, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Stomatology, Guangzhou 510055, China
| | - Meng Xu
- Hospital of Stomatology, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Stomatology, Guangzhou 510055, China
| | - Xiaoyue Zhang
- Guangdong Provincial Key Laboratory of Magnetoelectric Physics and Devices, School of Physics, Sun Yat-sen University, Guangzhou 510275, China
- Centre for Physical Mechanics and Biophysics, School of Physics, Sun Yat-sen University, Guangzhou 510275, China
| | - Xiaoli Hu
- Hospital of Stomatology, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Stomatology, Guangzhou 510055, China
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García-Sobrino R, Ruiz-Blas I, García C, Reinecke H, Elvira C, Rodríguez-Hernández J, Martínez-Campos E, Gallardo A. Hydrogels with dual sensitivity to temperature and pH in physiologically relevant ranges as supports for versatile controlled cell detachment. BIOMATERIALS ADVANCES 2024; 159:213826. [PMID: 38479241 DOI: 10.1016/j.bioadv.2024.213826] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Revised: 02/24/2024] [Accepted: 03/07/2024] [Indexed: 04/05/2024]
Abstract
Thermosensitive hydrogels based on the N-vinyl caprolactam (VCL), capable of allowing for cell adhesion and proliferation, as well as non-aggressive detachment by controlled temperature drop, were functionalized with 23 % or lower molar percentages of the cationizable hydrophobic unit 2-(diisopropylamino) ethyl methacrylate (DPAEMA), to obtain networks with dual sensitivity to temperature and pH. The swelling analysis of the systems has shown a transition pK (pKb) close to physiological values, dependent on the temperature of the medium (pKb of 6.6 and 6.9 when the temperature of the medium is above and below the transition temperature VPTT, respectively) and little dependence on the degree of functionalization of DPAEMA. In addition, at temperatures below the transition temperature (VPTT), the systems have shown large swelling variations as a function of the pH (i.e. below and above the pKb), exhibiting greater absorption capacity at pHs below pKb, where the DPAEMA units are cationized. Cytocompatibility and transplant capacity have been evaluated using the C166-GFP endothelial cell line. None of the thermosensitive hydrogels with variable DPAEMA content showed a delay with respect to the control without DPAEMA neither in terms of adhesion nor in proliferation. However, by increasing the percentage of DPAEMA functionalization -and decreasing thermosensitivity-, a correlative decrease in mitochondrial activity was obtained in the transplant, with significant differences for the hydrogels with DPAEMA molar percentage of 3 % or higher. Taking advantage of the proximity of the pKb to the physiological value, we have evaluated the cellular response and the capacity for transplantation after lowering the pH to 6.5, below pKb. A direct relationship of the DPAEMA functionalization degree on the detachment efficiency was observed, since the hydrogels with the highest molar load of DPAEMA showed higher mitochondrial metabolic activity after cell detachment.
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Affiliation(s)
- Rubén García-Sobrino
- Instituto de Ciencia y Tecnología de Polímeros (ICTP), CSIC, C/Juan de la Cierva 3, Madrid 28006, Spain; Grupo de Síntesis Orgánica y Bioevaluación, Instituto Pluridisciplinar (IP), UCM, Unidad Asociada al CSIC por el ICTP y el IQM, Paseo de Juan XXIII 1, 28040 Madrid, Spain.
| | - Irene Ruiz-Blas
- Grupo de Síntesis Orgánica y Bioevaluación, Instituto Pluridisciplinar (IP), UCM, Unidad Asociada al CSIC por el ICTP y el IQM, Paseo de Juan XXIII 1, 28040 Madrid, Spain
| | - Carolina García
- Instituto de Ciencia y Tecnología de Polímeros (ICTP), CSIC, C/Juan de la Cierva 3, Madrid 28006, Spain
| | - Helmut Reinecke
- Instituto de Ciencia y Tecnología de Polímeros (ICTP), CSIC, C/Juan de la Cierva 3, Madrid 28006, Spain
| | - Carlos Elvira
- Instituto de Ciencia y Tecnología de Polímeros (ICTP), CSIC, C/Juan de la Cierva 3, Madrid 28006, Spain
| | - Juan Rodríguez-Hernández
- Instituto de Ciencia y Tecnología de Polímeros (ICTP), CSIC, C/Juan de la Cierva 3, Madrid 28006, Spain
| | - Enrique Martínez-Campos
- Instituto de Ciencia y Tecnología de Polímeros (ICTP), CSIC, C/Juan de la Cierva 3, Madrid 28006, Spain; Grupo de Síntesis Orgánica y Bioevaluación, Instituto Pluridisciplinar (IP), UCM, Unidad Asociada al CSIC por el ICTP y el IQM, Paseo de Juan XXIII 1, 28040 Madrid, Spain.
| | - Alberto Gallardo
- Instituto de Ciencia y Tecnología de Polímeros (ICTP), CSIC, C/Juan de la Cierva 3, Madrid 28006, Spain
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4
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Patil A, Nangare S, Mahajan P, Jain P, Zawar L. Chitosan and neem gum-based polyelectrolyte complex for design of allantoin loaded biocomposite film: In-vitro, ex-vivo, and in-vivo characterization. Int J Biol Macromol 2024; 263:130280. [PMID: 38378120 DOI: 10.1016/j.ijbiomac.2024.130280] [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: 06/30/2023] [Revised: 02/10/2024] [Accepted: 02/16/2024] [Indexed: 02/22/2024]
Abstract
Presently, the preference for chitosan (CS) and gum polysaccharides in biomedical applications including drug delivery and wound healing has been extensively documented. Despite this, the demerits of CS and gum polysaccharides such as poor mechanical properties, degradation rate, swelling, etc., limit their applications for designing biocomposite films for drug delivery. Therefore, the anticipated work aims to design a CS and neem gum polysaccharides (NGP) polyelectrolyte complex-based allantoin (AT)-loaded (CS/NGP-AT) biocomposite film for improved wound healing. In brief, CS, NGP, and CS/NGP-AT-based biocomposite films were prepared using the solvent-casting method, and in-vitro, ex-vivo, and in-vivo characterizations were performed to assess the performance of these biocomposite films compared to their counterparts. In this, diffractogram and thermogram analysis assured the conversion of crystalline AT into an amorphous form. The optimized CS/NGP/AT-3 formulation exhibited controlled water absorption, appropriate water uptake capacity, good water retention ability, excellent water vapor transmission rate, controlled degradation rate, enhanced mechanical properties, cell and blood biocompatibility, etc. Furthermore, it offered improved antimicrobial, anti-inflammatory, and antioxidant potential. The optimized film provided a modified release (88.3 ± 0.3 %) of AT from the film for up to 48 h. Wound healing experiments on rats and their histopathology studies confirmed a significantly higher rate of wound recovery within 14 days compared to the control and CS/NGP film, attributable to the combined effects of CS, NGP, and AT. In conclusion, the fabricated CS/NGP-based biocomposite film presents promising prospects as an excellent candidate for wound healing applications.
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Affiliation(s)
- Amol Patil
- Department of Pharmaceutics, H. R. Patel Institute of Pharmaceutical Education and Research, Shirpur 425405, Maharashtra State, India
| | - Sopan Nangare
- Department of Pharmaceutics, H. R. Patel Institute of Pharmaceutical Education and Research, Shirpur 425405, Maharashtra State, India
| | - Pooja Mahajan
- Department of Pharmaceutics, H. R. Patel Institute of Pharmaceutical Education and Research, Shirpur 425405, Maharashtra State, India
| | - Pankaj Jain
- Department of Pharmacology, R. C. Patel Institute of Pharmaceutical Education and Research, Shirpur 425405, Maharashtra State, India
| | - Laxmikant Zawar
- Department of Pharmaceutics, H. R. Patel Institute of Pharmaceutical Education and Research, Shirpur 425405, Maharashtra State, India.
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5
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Ramachandran B, Sabbatier G, Bowden OM, Campbell K, Fekete N, Girard-Lauriault PL, Hoesli CA. Human mesenchymal stromal cell adhesion and expansion on fluoropolymer surfaces modified with oxygen and nitrogen-rich plasma polymers. Colloids Surf B Biointerfaces 2024; 234:113740. [PMID: 38199188 DOI: 10.1016/j.colsurfb.2023.113740] [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: 09/25/2023] [Revised: 12/12/2023] [Accepted: 12/28/2023] [Indexed: 01/12/2024]
Abstract
Fluorinated ethylene propylene (FEP) vessels are of significant interest for therapeutic cell biomanufacturing applications due to their chemical inertness, hydrophobic surface, and high oxygen permeability. However, these properties also limit the adhesion and survival of anchorage-dependent cells. Here, we develop novel plasma polymer coatings to modify FEP surfaces, enhancing the adhesion and expansion of human mesenchymal stromal cells (hMSCs). Similar to commercially available tissue culture polystyrene vessels, oxygen-rich or nitrogen-rich surface chemistries can be achieved using this approach. While steam sterilization increased the roughness of the coatings and altered the surface chemistry, the overall wettability and oxygen or nitrogen-rich nature of the coatings were maintained. In the absence of proteins during initial cell attachment, cells adhered to surfaces even in the presence of chelators, whereas adhesion was abrogated with chelator in a protein-containing medium, suggesting that integrin-mediated adhesion predominates over physicochemical tethering in normal protein-containing cell seeding conditions. Albumin adsorption was more elevated on nitrogen-rich coatings compared to the oxygen-rich coatings, which was correlated with a higher extent of hMSC expansion after 3 days. Both the oxygen and nitrogen-rich coatings significantly improved hMSC adhesion and expansion compared to untreated FEP. FEP surfaces with nitrogen-rich coatings were practically equivalent to commercially available standard tissue culture-treated polystyrene surfaces in terms of hMSC yields. Plasma polymer coatings show significant promise in expanding the potential usage of FEP-based culture vessels for cell therapy applications.
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Affiliation(s)
| | - Gad Sabbatier
- Department of Chemical Engineering, McGill University, Montréal, Canada
| | - Olivia M Bowden
- Department of Chemical Engineering, McGill University, Montréal, Canada
| | - Katie Campbell
- Saint-Gobain Ceramics & Plastics, Inc., Northboro R&D Center, Northborough, MA, USA
| | - Natalie Fekete
- Saint-Gobain Ceramics & Plastics, Inc., Northboro R&D Center, Northborough, MA, USA
| | | | - Corinne A Hoesli
- Department of Chemical Engineering, McGill University, Montréal, Canada.
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6
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García-Sobrino R, Muñoz M, Rodríguez-Jara E, Rams J, Torres B, Cifuentes SC. Bioabsorbable Composites Based on Polymeric Matrix (PLA and PCL) Reinforced with Magnesium (Mg) for Use in Bone Regeneration Therapy: Physicochemical Properties and Biological Evaluation. Polymers (Basel) 2023; 15:4667. [PMID: 38139919 PMCID: PMC10747080 DOI: 10.3390/polym15244667] [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: 11/13/2023] [Revised: 12/05/2023] [Accepted: 12/06/2023] [Indexed: 12/24/2023] Open
Abstract
Improvements in Tissue Engineering and Regenerative Medicine (TERM)-type technologies have allowed the development of specific materials that, together with a better understanding of bone tissue structure, have provided new pathways to obtain biomaterials for bone tissue regeneration. In this manuscript, bioabsorbable materials are presented as emerging materials in tissue engineering therapies related to bone lesions because of their ability to degrade in physiological environments while the regeneration process is completed. This comprehensive review aims to explore the studies, published since its inception (2010s) to the present, on bioabsorbable composite materials based on PLA and PCL polymeric matrix reinforced with Mg, which is also bioabsorbable and has recognized osteoinductive capacity. The research collected in the literature reveals studies based on different manufacturing and dispersion processes of the reinforcement as well as the physicochemical analysis and corresponding biological evaluation to know the osteoinductive capacity of the proposed PLA/Mg and PCL/Mg composites. In short, this review shows the potential of these composite materials and serves as a guide for those interested in bioabsorbable materials applied in bone tissue engineering.
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Affiliation(s)
- Rubén García-Sobrino
- Department of Applied Mathematics, Materials Science and Engineering and Electronic Technology, Universidad Rey Juan Carlos, Calle Tulipán s/n, 28933 Móstoles, Spain; (M.M.); (J.R.); (B.T.)
| | - Marta Muñoz
- Department of Applied Mathematics, Materials Science and Engineering and Electronic Technology, Universidad Rey Juan Carlos, Calle Tulipán s/n, 28933 Móstoles, Spain; (M.M.); (J.R.); (B.T.)
| | - Elías Rodríguez-Jara
- Instituto de Cerámica y Vidrio, Consejo Superior de Investigaciones Científicas (CSIC), Campus de Cantoblanco, c/Kelsen 5, 28049 Madrid, Spain;
| | - Joaquín Rams
- Department of Applied Mathematics, Materials Science and Engineering and Electronic Technology, Universidad Rey Juan Carlos, Calle Tulipán s/n, 28933 Móstoles, Spain; (M.M.); (J.R.); (B.T.)
| | - Belén Torres
- Department of Applied Mathematics, Materials Science and Engineering and Electronic Technology, Universidad Rey Juan Carlos, Calle Tulipán s/n, 28933 Móstoles, Spain; (M.M.); (J.R.); (B.T.)
| | - Sandra C. Cifuentes
- Department of Applied Mathematics, Materials Science and Engineering and Electronic Technology, Universidad Rey Juan Carlos, Calle Tulipán s/n, 28933 Móstoles, Spain; (M.M.); (J.R.); (B.T.)
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7
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Fuse H, Kikawada T, Cornette R. Effective methods for immobilization of non-adherent Pv11 cells while maintaining their desiccation tolerance. Cytotechnology 2023; 75:491-503. [PMID: 37841960 PMCID: PMC10575823 DOI: 10.1007/s10616-023-00592-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Accepted: 08/24/2023] [Indexed: 10/17/2023] Open
Abstract
Pv11 was derived from embryos of the sleeping chironomid Polypedilum vanderplanki, which displays an extreme form of desiccation tolerance known as anhydrobiosis. Pre-treatment with a high concentration of trehalose allows Pv11 cells to enter anhydrobiosis. In the dry state, Pv11 cells preserve transgenic luciferase while retaining its activity. Thus, these cells could be utilized for dry-preserving antibodies, enzymes, signaling proteins or other valuable biological materials without denaturation. However, Pv11 cells grow in suspension, which limits their applicability; for instance, they cannot be integrated into microfluidic devices or used in devices such as sensor chips. Therefore, in this paper, we developed an effective immobilization system for Pv11 cells that, crucially, allows them to maintain their anhydrobiotic potential even when immobilized. Pv11 cells exhibited a very high adhesion rate with both biocompatible anchor for membrane (BAM) and Cell-Tak coatings, which have been reported to be effective on other cultured cells. We also found that Pv11 cells immobilized well to uncoated glass if handled in serum-free medium. Interestingly, Pv11 cells showed desiccation tolerance when trehalose treatment was done prior to immobilization of the cells. In contrast, trehalose treatment after immobilization of Pv11 cells resulted in a significant decrease in desiccation tolerance. Thus, it is important to induce anhydrobiosis before immobilization. In summary, we report the successful development of a protocol for the dry preservation of immobilized Pv11 cells. Supplementary Information The online version contains supplementary material available at 10.1007/s10616-023-00592-0.
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Affiliation(s)
- Hiroto Fuse
- Department of Integrated Biosciences, Graduate School of Frontier Sciences, The University of Tokyo, 5-1-5, Kashiwa, Chiba 277-8562 Japan
| | - Takahiro Kikawada
- Department of Integrated Biosciences, Graduate School of Frontier Sciences, The University of Tokyo, 5-1-5, Kashiwa, Chiba 277-8562 Japan
- Division of Biomaterial Sciences, Institute of Agrobiological Sciences, National Agriculture and Food Research Organization (NARO), 1-2 Owashi, Tsukuba, Ibaraki 305-0851 Japan
| | - Richard Cornette
- Division of Biomaterial Sciences, Institute of Agrobiological Sciences, National Agriculture and Food Research Organization (NARO), 1-2 Owashi, Tsukuba, Ibaraki 305-0851 Japan
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8
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Barreiro Carpio M, Gonzalez Martinez E, Dabaghi M, Ungureanu J, Arizpe Tafoya AV, Gonzalez Martinez DA, Hirota JA, Moran-Mirabal JM. High-Fidelity Extrusion Bioprinting of Low-Printability Polymers Using Carbopol as a Rheology Modifier. ACS APPLIED MATERIALS & INTERFACES 2023; 15:54234-54248. [PMID: 37964517 PMCID: PMC10695173 DOI: 10.1021/acsami.3c10092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Revised: 11/01/2023] [Accepted: 11/06/2023] [Indexed: 11/16/2023]
Abstract
Extrusion three-dimensional (3D) bioprinting is a promising technology with many applications in the biomedical and tissue engineering fields. One of the key limitations for the widespread use of this technology is the narrow window of printability that results from the need to have bioinks with rheological properties that allow the extrusion of continuous filaments while maintaining high cell viability within the materials during and after printing. In this work, we use Carbopol (CBP) as rheology modifier for extrusion printing of biomaterials that are typically nonextrudable or present low printability. We show that low concentrations of CBP can introduce the desired rheological properties for a wide range of formulations, allowing the use of polymers with different cross-linking mechanisms and the introduction of additives and cells. To explore the opportunities and limitations of CBP as a rheology modifier, we used ink formulations based on poly(ethylene glycol)diacrylate with extrusion 3D printing to produce soft, yet stable, hydrogels with tunable mechanical properties. Cell-laden constructs made with such inks presented high viability for cells seeded on top of cross-linked materials and cells incorporated within the bioink during printing, showing that the materials are noncytotoxic and the printed structures do not degrade for up to 14 days. To our knowledge, this is the first report of the use of CBP-containing bioinks to 3D-print complex cell-laden structures that are stable for days and present high cell viability. The use of CBP to obtain highly printable inks can accelerate the evolution of extrusion 3D bioprinting by guaranteeing the required rheological properties and expanding the number of materials that can be successfully printed. This will allow researchers to develop and optimize new bioinks focusing on the biochemical, cellular, and mechanical requirements of the targeted applications rather than the rheology needed to achieve good printability.
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Affiliation(s)
- Mabel Barreiro Carpio
- Department
of Chemistry and Chemical Biology, McMaster
University, Hamilton, Ontario L8S 4M1, Canada
| | - Eduardo Gonzalez Martinez
- Department
of Chemistry and Chemical Biology, McMaster
University, Hamilton, Ontario L8S 4M1, Canada
| | - Mohammadhossein Dabaghi
- Firestone
Institute for Respiratory Health, Division of Respirology, Department
of Medicine, McMaster University, Hamilton, Ontario L8S 4M1, Canada
| | - Julia Ungureanu
- Department
of Chemistry and Chemical Biology, McMaster
University, Hamilton, Ontario L8S 4M1, Canada
| | | | | | - Jeremy Alexander Hirota
- Firestone
Institute for Respiratory Health, Division of Respirology, Department
of Medicine, McMaster University, Hamilton, Ontario L8S 4M1, Canada
- School
of Biomedical Engineering, McMaster University, Hamilton, Ontario L8S 4M1, Canada
- McMaster
Immunology Research Centre, Department of Pathology and Molecular
Medicine, McMaster University, Hamilton, Ontario L8S 4M1, Canada
- Division
of Respiratory Medicine, Department of Medicine, University of British Columbia, Vancouver, British Columbia V5Z 1M9, Canada
- Department
of Biology, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada
| | - Jose Manuel Moran-Mirabal
- Department
of Chemistry and Chemical Biology, McMaster
University, Hamilton, Ontario L8S 4M1, Canada
- School
of Biomedical Engineering, McMaster University, Hamilton, Ontario L8S 4M1, Canada
- Centre
for Advanced Light Microscopy, McMaster
University, Hamilton, Ontario L8S 4M1, Canada
- Brockhouse
Institute for Materials Research, McMaster
University, Hamilton, Ontario L8S 4M1, Canada
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9
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Liao Y, Fatehi P, Liao B. Microalgae cell adhesions on hydrophobic membrane substrates using quartz crystal microbalance with dissipation. Colloids Surf B Biointerfaces 2023; 230:113514. [PMID: 37598610 DOI: 10.1016/j.colsurfb.2023.113514] [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: 05/27/2023] [Revised: 08/03/2023] [Accepted: 08/08/2023] [Indexed: 08/22/2023]
Abstract
Microalgal cell adhesion and biofilm formation are affected by interactions between microalgae strains and membrane materials. Variations of surface properties of microalgae and membrane materials are expected to affect cell-membranes and cell-cell interactions and thus initial microalgal cell adhesion and biofilm formation rates. Hence, it should be possible to identify the dominant mechanisms controlling microalgal cell adhesion and biofilm formation. The effects of surface properties of three different microalgal strains and three different types of membrane materials on microalgal cell adhesion and biofilm formation were systematically investigated in real time by monitoring changes in the oscillation frequency and dissipation of the quartz crystal resonator (QCM-D). The results revealed that in general a higher surface free energy, more negative zeta potential, and higher surface roughness of membrane materials positively correlated with a larger quantity of microalgae cell deposition, while a more hydrophilic microalgae with a larger negative zeta potential preferred to attach to a more hydrophobic membrane material. The adhered microalgal layers exhibited viscoelastic properties. The relative importance of these mechanisms in controlling microalgae cell attachment and biofilm formation might vary, depending on the properties of specific microalgae species and hydrophobic membrane materials used.
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Affiliation(s)
- Yichen Liao
- Department of Chemical Engineering, Lakehead University, 955 Oliver Road, Thunder Bay, ON P7B5E1, Canada
| | - Pedram Fatehi
- Department of Chemical Engineering, Lakehead University, 955 Oliver Road, Thunder Bay, ON P7B5E1, Canada
| | - Baoqiang Liao
- Department of Chemical Engineering, Lakehead University, 955 Oliver Road, Thunder Bay, ON P7B5E1, Canada.
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10
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Liao Y, Fatehi P, Liao B. Surface properties of membrane materials and their role in cell adhesion and biofilm formation of microalgae. BIOFOULING 2023; 39:879-895. [PMID: 37965865 DOI: 10.1080/08927014.2023.2280005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Accepted: 10/28/2023] [Indexed: 11/16/2023]
Abstract
In this study, the effects of surface properties of membrane materials on microalgae cell adhesion and biofilm formation were investigated using Chlorella vulgaris and five different types of membrane materials under hydrodynamic conditions. The results suggest that the contact angle (hydrophobicity), surface free energy, and free energy of cohesion of membrane materials alone could not sufficiently elucidate the selectivity of microalgae cell adhesion and biofilm formation on membrane materials surfaces, and membrane surface roughness played a dominant role in controlling biofilm formation rate, under tested hydrodynamic conditions. A lower level of biofilm EPS production was generally associated with a larger amount of biofilm formation. The zeta potential of membrane materials could enhance initial microalgae cell adhesion and biofilm formation through salt bridging or charge neutralization mechanisms.
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Affiliation(s)
- Yichen Liao
- Department of Chemical Engineering, Lakehead University, Thunder Bay, Ontario, Canada
| | - Pedram Fatehi
- Department of Chemical Engineering, Lakehead University, Thunder Bay, Ontario, Canada
| | - Baoqiang Liao
- Department of Chemical Engineering, Lakehead University, Thunder Bay, Ontario, Canada
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11
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Kutluk H, Bastounis EE, Constantinou I. Integration of Extracellular Matrices into Organ-on-Chip Systems. Adv Healthc Mater 2023; 12:e2203256. [PMID: 37018430 DOI: 10.1002/adhm.202203256] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Revised: 03/20/2023] [Indexed: 04/07/2023]
Abstract
The extracellular matrix (ECM) is a complex, dynamic network present within all tissues and organs that not only acts as a mechanical support and anchorage point but can also direct fundamental cell behavior, function, and characteristics. Although the importance of the ECM is well established, the integration of well-controlled ECMs into Organ-on-Chip (OoC) platforms remains challenging and the methods to modulate and assess ECM properties on OoCs remain underdeveloped. In this review, current state-of-the-art design and assessment of in vitro ECM environments is discussed with a focus on their integration into OoCs. Among other things, synthetic and natural hydrogels, as well as polydimethylsiloxane (PDMS) used as substrates, coatings, or cell culture membranes are reviewed in terms of their ability to mimic the native ECM and their accessibility for characterization. The intricate interplay among materials, OoC architecture, and ECM characterization is critically discussed as it significantly complicates the design of ECM-related studies, comparability between works, and reproducibility that can be achieved across research laboratories. Improving the biomimetic nature of OoCs by integrating properly considered ECMs would contribute to their further adoption as replacements for animal models, and precisely tailored ECM properties would promote the use of OoCs in mechanobiology.
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Affiliation(s)
- Hazal Kutluk
- Institute of Microtechnology (IMT), Technical University of Braunschweig, Alte Salzdahlumer Str. 203, 38124, Braunschweig, Germany
- Center of Pharmaceutical Engineering (PVZ), Technical University of Braunschweig, Franz-Liszt-Str. 35a, 38106, Braunschweig, Germany
| | - Effie E Bastounis
- Institute of Microbiology and Infection Medicine (IMIT), Eberhard Karls University of Tübingen, Auf der Morgenstelle 28, E8, 72076, Tübingen, Germany
- Cluster of Excellence "Controlling Microbes to Fight Infections" EXC 2124, Eberhard Karls University of Tübingen, Auf der Morgenstelle 28, 72076, Tübingen, Germany
| | - Iordania Constantinou
- Institute of Microtechnology (IMT), Technical University of Braunschweig, Alte Salzdahlumer Str. 203, 38124, Braunschweig, Germany
- Center of Pharmaceutical Engineering (PVZ), Technical University of Braunschweig, Franz-Liszt-Str. 35a, 38106, Braunschweig, Germany
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12
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Hu X, Wang T, Li F, Mao X. Surface modifications of biomaterials in different applied fields. RSC Adv 2023; 13:20495-20511. [PMID: 37435384 PMCID: PMC10331796 DOI: 10.1039/d3ra02248j] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Accepted: 06/26/2023] [Indexed: 07/13/2023] Open
Abstract
Biomaterial implantation into the human body plays a key role in the medical field and biological applications. Increasing the life expectancy of biomaterial implants, reducing the rejection reaction inside the human body and reducing the risk of infection are the problems in this field that need to be solved urgently. The surface modification of biomaterials can change the original physical, chemical and biological properties and improve the function of materials. This review focuses on the application of surface modification techniques in various fields of biomaterials reported in the past few years. The surface modification techniques include film and coating synthesis, covalent grafting, self-assembled monolayers (SAMs), plasma surface modification and other strategies. First, a brief introduction to these surface modification techniques for biomaterials is given. Subsequently, the review focuses on how these techniques change the properties of biomaterials, and evaluates the effects of modification on the cytocompatibility, antibacterial, antifouling and surface hydrophobic properties of biomaterials. In addition, the implications for the design of biomaterials with different functions are discussed. Finally, based on this review, it is expected that the biomaterials have development prospects in the medical field.
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Affiliation(s)
- Xi Hu
- State Key Laboratory of Ultrasound in Medicine and Engineering College of Biomedical Engineering, Chongqing Medical University Chongqing 400016 P. R. China
- Chongqing Key Laboratory of Biomedical Engineering, College of Biomedical Engineering, Chongqing Medical University Chongqing 400016 P. R. China
| | - Teng Wang
- State Key Laboratory of Ultrasound in Medicine and Engineering College of Biomedical Engineering, Chongqing Medical University Chongqing 400016 P. R. China
- Chongqing Key Laboratory of Biomedical Engineering, College of Biomedical Engineering, Chongqing Medical University Chongqing 400016 P. R. China
| | - Faqi Li
- State Key Laboratory of Ultrasound in Medicine and Engineering College of Biomedical Engineering, Chongqing Medical University Chongqing 400016 P. R. China
- Chongqing Key Laboratory of Biomedical Engineering, College of Biomedical Engineering, Chongqing Medical University Chongqing 400016 P. R. China
| | - Xiang Mao
- State Key Laboratory of Ultrasound in Medicine and Engineering College of Biomedical Engineering, Chongqing Medical University Chongqing 400016 P. R. China
- Chongqing Key Laboratory of Biomedical Engineering, College of Biomedical Engineering, Chongqing Medical University Chongqing 400016 P. R. China
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13
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Yamada Y, Anderson CF, Schneider JP. De Novo Design of a Versatile Peptide-Based Coating to Impart Targeted Functionality at the Surface of Native Polystyrene. ACS APPLIED MATERIALS & INTERFACES 2023. [PMID: 37276244 DOI: 10.1021/acsami.3c02606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Peptide sequence periodicity is a simple design tool that can be used to generate functional peptide-based surface coatings. De novo-designed peptide N3-PEG-VK16 is characterized by a hydrophobic periodicity of two that avidly binds to native polystyrene priming its surface for subsequent targeted functionalization via chemical ligation. The peptidic portion of N3-PEG-VK16 is responsible for surface binding, converting polystyrene's hydrophobic surface into a wettable and electrostatically charged environment that facilitates cell attachment. Native polystyrene surfaces are coated by simple peptide adsorption from an aqueous buffered solution, and the resulting primed surface is easily functionalized by cycloaddition chemistry. Herein, we show that ligating a vitronectin-derived peptide to primed polystyrene surfaces enables adhesion, expansion, long-term culture, and phenotype maintenance of human induced pluripotent stem cells. To demonstrate scope, we also show that additional functional ligands can be used, for example, nerve growth factor protein, to control neurite outgrowth.
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Affiliation(s)
- Yuji Yamada
- Department of Clinical Biochemistry, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan
| | - Caleb F Anderson
- Chemical Biology Laboratory, Center for Cancer Research, National Cancer Institute-Frederick, National Institutes of Health, Frederick, Maryland 21702, United States
| | - Joel P Schneider
- Chemical Biology Laboratory, Center for Cancer Research, National Cancer Institute-Frederick, National Institutes of Health, Frederick, Maryland 21702, United States
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14
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Tanikawa S, Ebisu Y, Sedlačík T, Semba S, Nonoyama T, Kurokawa T, Hirota A, Takahashi T, Yamaguchi K, Imajo M, Kato H, Nishimura T, Tanei ZI, Tsuda M, Nemoto T, Gong JP, Tanaka S. Engineering of an electrically charged hydrogel implanted into a traumatic brain injury model for stepwise neuronal tissue reconstruction. Sci Rep 2023; 13:2233. [PMID: 36788295 PMCID: PMC9929269 DOI: 10.1038/s41598-023-28870-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Accepted: 01/25/2023] [Indexed: 02/16/2023] Open
Abstract
Neural regeneration is extremely difficult to achieve. In traumatic brain injuries, the loss of brain parenchyma volume hinders neural regeneration. In this study, neuronal tissue engineering was performed by using electrically charged hydrogels composed of cationic and anionic monomers in a 1:1 ratio (C1A1 hydrogel), which served as an effective scaffold for the attachment of neural stem cells (NSCs). In the 3D environment of porous C1A1 hydrogels engineered by the cryogelation technique, NSCs differentiated into neuroglial cells. The C1A1 porous hydrogel was implanted into brain defects in a mouse traumatic damage model. The VEGF-immersed C1A1 porous hydrogel promoted host-derived vascular network formation together with the infiltration of macrophages/microglia and astrocytes into the gel. Furthermore, the stepwise transplantation of GFP-labeled NSCs supported differentiation towards glial and neuronal cells. Therefore, this two-step method for neural regeneration may become a new approach for therapeutic brain tissue reconstruction after brain damage in the future.
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Affiliation(s)
- Satoshi Tanikawa
- Department of Cancer Pathology, Faculty of Medicine, Hokkaido University, N15, W7, Sapporo, 060-8638, Japan.,Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), Hokkaido University, N21, W10, Sapporo, 001-0021, Japan
| | - Yuki Ebisu
- Department of Cancer Pathology, Faculty of Medicine, Hokkaido University, N15, W7, Sapporo, 060-8638, Japan
| | - Tomáš Sedlačík
- Faculty of Advanced Life Science, Hokkaido University, N21, W11, Sapporo, 001-0021, Japan
| | - Shingo Semba
- Department of Cancer Pathology, Faculty of Medicine, Hokkaido University, N15, W7, Sapporo, 060-8638, Japan
| | - Takayuki Nonoyama
- Faculty of Advanced Life Science, Hokkaido University, N21, W11, Sapporo, 001-0021, Japan
| | - Takayuki Kurokawa
- Faculty of Advanced Life Science, Hokkaido University, N21, W11, Sapporo, 001-0021, Japan
| | - Akira Hirota
- Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), Hokkaido University, N21, W10, Sapporo, 001-0021, Japan
| | - Taiga Takahashi
- Research Institute for Electronic Science, Hokkaido University, N21, W11, Sapporo, 001-0021, Japan.,Biophotonics Research Group, Exploratory Research Center on Life and Living Systems (ExCELLS) and National Institute for Physiological Sciences, National Institutes of Natural Sciences, Higashiyama 5-1, Myodaiji, Okazaki, Aichi, 444-8787, Japan
| | - Kazushi Yamaguchi
- Research Institute for Electronic Science, Hokkaido University, N21, W11, Sapporo, 001-0021, Japan.,Biophotonics Research Group, Exploratory Research Center on Life and Living Systems (ExCELLS) and National Institute for Physiological Sciences, National Institutes of Natural Sciences, Higashiyama 5-1, Myodaiji, Okazaki, Aichi, 444-8787, Japan
| | - Masamichi Imajo
- Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), Hokkaido University, N21, W10, Sapporo, 001-0021, Japan
| | - Hinako Kato
- Graduate School of Life Science, Hokkaido University, N21, W11, Sapporo, Japan, 001-0021
| | - Takuya Nishimura
- Graduate School of Life Science, Hokkaido University, N21, W11, Sapporo, Japan, 001-0021
| | - Zen-Ichi Tanei
- Department of Cancer Pathology, Faculty of Medicine, Hokkaido University, N15, W7, Sapporo, 060-8638, Japan
| | - Masumi Tsuda
- Department of Cancer Pathology, Faculty of Medicine, Hokkaido University, N15, W7, Sapporo, 060-8638, Japan.,Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), Hokkaido University, N21, W10, Sapporo, 001-0021, Japan.,Research Institute for Electronic Science, Hokkaido University, N21, W11, Sapporo, 001-0021, Japan
| | - Tomomi Nemoto
- Research Institute for Electronic Science, Hokkaido University, N21, W11, Sapporo, 001-0021, Japan.,Biophotonics Research Group, Exploratory Research Center on Life and Living Systems (ExCELLS) and National Institute for Physiological Sciences, National Institutes of Natural Sciences, Higashiyama 5-1, Myodaiji, Okazaki, Aichi, 444-8787, Japan
| | - Jian Ping Gong
- Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), Hokkaido University, N21, W10, Sapporo, 001-0021, Japan.,Faculty of Advanced Life Science, Hokkaido University, N21, W11, Sapporo, 001-0021, Japan
| | - Shinya Tanaka
- Department of Cancer Pathology, Faculty of Medicine, Hokkaido University, N15, W7, Sapporo, 060-8638, Japan. .,Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), Hokkaido University, N21, W10, Sapporo, 001-0021, Japan.
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15
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Yamazaki M, Onodera K, Iijima K. Surface modification of silica nonwoven fabrics for osteogenesis of bone marrow-derived mesenchymal stem cells. J Biosci Bioeng 2022; 134:541-548. [PMID: 36171160 DOI: 10.1016/j.jbiosc.2022.08.007] [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: 06/07/2022] [Revised: 08/10/2022] [Accepted: 08/23/2022] [Indexed: 12/13/2022]
Abstract
Silica nonwoven fabrics (SNFs) with high mechanical strength and porosity are known to exhibit high cell proliferation and osteogenic differentiation potential of mesenchymal stem cells (MSCs) by morphologically mimicking the extracellular matrix (ECM). To further improve the osteoinductive ability of SNFs, it could be effective to increase the interaction between MSCs and ECM components because exogenous ECM components seem to modulate the fate of MSCs differentiation. In this study, we developed immobilization methods for ECM components, such as collagen, fibronectin, and chondroitin sulphate C on SNFs, to improve cell-matrix interactions and examined their suitability for bone tissue regeneration. Collagen and fibronectin were immobilized via physical adsorption and chondroitin sulphate C was also immobilized by the layer-by-layer method combined with chitosan on SNF surfaces to maintain the high porosity of SNFs. The treated SNFs were characterized using scanning electron microscopy, Fourier transform infrared spectroscopy, and X-ray photoelectron spectroscopy. In osteogenic differentiation culture, modified SNFs showed significantly increased expression of osteogenic differentiation marker genes compared to unmodified SNFs. These results suggest that the present methods improve cell-matrix interactions and enhance the cellular functions of MSCs. We are convinced that these simple modification techniques for ECM components are effective in functionalizing various 3D fabric scaffolds possessing hydrophilic groups.
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Affiliation(s)
- Makoto Yamazaki
- Graduate School of Engineering Science, Yokohama National University, 79-5 Tokiwadai, Hodogaya-ku, Yokohama 240-8501, Japan
| | - Kodai Onodera
- Graduate School of Engineering Science, Yokohama National University, 79-5 Tokiwadai, Hodogaya-ku, Yokohama 240-8501, Japan
| | - Kazutoshi Iijima
- Faculty of Engineering, Yokohama National University, 79-5 Tokiwadai, Hodogaya-ku, Yokohama 240-8501, Japan.
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16
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Imashiro C, Mei J, Friend J, Takemura K. Quantifying cell adhesion through forces generated by acoustic streaming. ULTRASONICS SONOCHEMISTRY 2022; 90:106204. [PMID: 36257212 PMCID: PMC9583098 DOI: 10.1016/j.ultsonch.2022.106204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Revised: 09/01/2022] [Accepted: 10/12/2022] [Indexed: 06/16/2023]
Abstract
The strength of cell adhesion is important in understanding the cell's health and in culturing them. Quantitative measurement of cell adhesion strength is a significant challenge in bioengineering research. For this, the present study describes a system that can measure cell adhesion strength using acoustic streaming induced by Lamb waves. Cells are cultured on an ultrasound transducer using a range of preculture and incubation times with phosphate-buffered saline (PBS) just before the measurement. Acoustic streaming is then induced using several Lamb wave intensities, exposing the cells to shear flows and eventually detaching them. By relying upon a median detachment rate of 50 %, the corresponding detachment force, or force of cell adhesion, was determined to be on the order of several nN, consistent with previous reports. The stronger the induced shear flow, the more cells were detached. Further, we employed a preculture time of 8 to 24 h and a PBS incubation time of 0 to 60 min, producing cell adhesion forces that varied from 1.2 to 13 nN. Hence, the developed system can quantify cell adhesion strength over a wide range, possibly offering a fundamental tool for cell-based bioengineering.
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Affiliation(s)
- Chikahiro Imashiro
- Institute of Advanced Biomedical Engineering and Science, Tokyo Women's Medical University, 8-1 Kawada-cho, Shinjuku-ku, Tokyo 162-8666, Japan; Department of Mechanical Engineering, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, Kanagawa 223-8522, Japan.
| | - Jiyang Mei
- Medically Advanced Devices Laboratory, Center for Medical Devices, Department of Mechanical and Aerospace Engineering, Jacobs School of Engineering and Department of Surgery, School of Medicine, University of California, San Diego, CA 92093, USA
| | - James Friend
- Medically Advanced Devices Laboratory, Center for Medical Devices, Department of Mechanical and Aerospace Engineering, Jacobs School of Engineering and Department of Surgery, School of Medicine, University of California, San Diego, CA 92093, USA
| | - Kenjiro Takemura
- Department of Mechanical Engineering, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, Kanagawa 223-8522, Japan
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17
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Pittman M, Iu E, Li K, Wang M, Chen J, Taneja N, Jo MH, Park S, Jung WH, Liang L, Barman I, Ha T, Gaitanaros S, Liu J, Burnette D, Plotnikov S, Chen Y. Membrane Ruffling is a Mechanosensor of Extracellular Fluid Viscosity. NATURE PHYSICS 2022; 18:1112-1121. [PMID: 37220497 PMCID: PMC10202009 DOI: 10.1038/s41567-022-01676-y] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Accepted: 06/17/2022] [Indexed: 05/25/2023]
Abstract
Cell behaviour is affected by the physical forces and mechanical properties of the cells and of their microenvironment. The viscosity of extracellular fluid - a component of the cellular microenvironment - can vary by orders of magnitude, but its effect on cell behaviour remains largely unexplored. Using bio-compatible polymers to increase the viscosity of the culture medium, we characterize how viscosity affects cell behaviour. We find that multiple types of adherent cells respond in an unexpected but similar manner to elevated viscosity. In a highly viscous medium, cells double their spread area, exhibit increased focal adhesion formation and turnover, generate significantly greater traction forces, and migrate nearly two times faster. We observe that when cells are immersed in regular medium, these viscosity-dependent responses require an actively ruffling lamellipodium - a dynamic membrane structure at the front of the cell. We present evidence that cells utilize membrane ruffling to sense changes in extracellular fluid viscosity and to trigger adaptive responses.
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Affiliation(s)
- Matthew Pittman
- Department of Mechanical Engineering, Johns Hopkins University
- Institute for NanoBioTechnology, Johns Hopkins University
- Center for Cell Dynamics, Johns Hopkins University
| | - Ernest Iu
- Department of Cell & Systems Biology, University of Toronto
| | - Keva Li
- Department of Mechanical Engineering, Johns Hopkins University
- Institute for NanoBioTechnology, Johns Hopkins University
- Center for Cell Dynamics, Johns Hopkins University
| | - Mingjiu Wang
- Department of Mechanical Engineering, Johns Hopkins University
- Institute for NanoBioTechnology, Johns Hopkins University
- Center for Cell Dynamics, Johns Hopkins University
| | - Junjie Chen
- Department of Mechanical Engineering, Johns Hopkins University
- Institute for NanoBioTechnology, Johns Hopkins University
- Center for Cell Dynamics, Johns Hopkins University
| | - Nilay Taneja
- Department of Cell and Developmental Biology, Vanderbilt University
| | | | - Seungman Park
- Department of Mechanical Engineering, Johns Hopkins University
- Institute for NanoBioTechnology, Johns Hopkins University
- Center for Cell Dynamics, Johns Hopkins University
| | - Wei-Hung Jung
- Department of Mechanical Engineering, Johns Hopkins University
- Institute for NanoBioTechnology, Johns Hopkins University
- Center for Cell Dynamics, Johns Hopkins University
| | - Le Liang
- Department of Mechanical Engineering, Johns Hopkins University
| | - Ishan Barman
- Department of Mechanical Engineering, Johns Hopkins University
| | - Taekjip Ha
- Department of Biophysics, Johns Hopkins University
| | | | - Jian Liu
- Department of Cell Biology, Johns Hopkins University School of Medicine
| | - Dylan Burnette
- Department of Cell and Developmental Biology, Vanderbilt University
| | | | - Yun Chen
- Department of Mechanical Engineering, Johns Hopkins University
- Institute for NanoBioTechnology, Johns Hopkins University
- Center for Cell Dynamics, Johns Hopkins University
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18
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Zou M, Liao C, Chen Y, Gan Z, Liu S, Liu D, Liu L, Wang Y. Measurement of Interfacial Adhesion Force with a 3D-Printed Fiber-Tip Microforce Sensor. BIOSENSORS 2022; 12:bios12080629. [PMID: 36005024 PMCID: PMC9406145 DOI: 10.3390/bios12080629] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Revised: 08/06/2022] [Accepted: 08/09/2022] [Indexed: 05/27/2023]
Abstract
With the current trend of device miniaturization, the measurement and control of interfacial adhesion forces are increasingly important in fields such as biomechanics and cell biology. However, conventional fiber optic force sensors with high Young’s modulus (>70 GPa) are usually unable to measure adhesion forces on the micro- or nano-Newton level on the surface of micro/nanoscale structures. Here, we demonstrate a method for interfacial adhesion force measurement in micro/nanoscale structures using a fiber-tip microforce sensor (FTMS). The FTMS, with microforce sensitivity of 1.05 nm/μN and force resolution of up to 19 nN, is fabricated using femtosecond laser two-photon polymerization nanolithography to program a clamped-beam probe on the end face of a single-mode fiber. As a typical verification test, the micronewton-level contact and noncontact adhesion forces on the surfaces of hydrogels were measured by FTMS. In addition, the noncontact adhesion of human hair was successfully measured with the sensor.
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Affiliation(s)
- Mengqiang Zou
- Guangdong and Hong Kong Joint Research Centre for Optical Fibre Sensors, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China
| | - Changrui Liao
- Guangdong and Hong Kong Joint Research Centre for Optical Fibre Sensors, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China
| | - Yanping Chen
- Guangdong and Hong Kong Joint Research Centre for Optical Fibre Sensors, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China
| | - Zongsong Gan
- Wuhan National Laboratory for Optoelectronics (WNLO), Huazhong University of Science and Technology (HUST), Wuhan 430074, China
| | - Shen Liu
- Guangdong and Hong Kong Joint Research Centre for Optical Fibre Sensors, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China
| | - Dejun Liu
- Guangdong and Hong Kong Joint Research Centre for Optical Fibre Sensors, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China
| | - Li Liu
- Department of Electronic Engineering, Chinese University of Hong Kong, Hong Kong, China
| | - Yiping Wang
- Guangdong and Hong Kong Joint Research Centre for Optical Fibre Sensors, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China
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19
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Aljadi Z, Aval NA, Kumar T, Qin T, Ramachandraiah H, Pettersson T, Russom A. Layer-by-Layer Cellulose Nanofibrils: A New Coating Strategy for Development and Characterization of Tumor Spheroids as a Model for In-Vitro Anti-Cancer Drug Screening. Macromol Biosci 2022; 22:e2200137. [PMID: 35899862 DOI: 10.1002/mabi.202200137] [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: 04/05/2022] [Revised: 07/21/2022] [Indexed: 11/09/2022]
Abstract
Three-dimensional multicellular spheroids (MCSs) are complex structure of cellular aggregates and cell-to-matrix interaction that emulates the in-vivo microenvironment. This research field has progressively grown to develop and improve spheroid generation techniques. Here, we present a new platform for spheroid generation using Layer-by-Layer (LbL) technology. Layer-by-Layer (LbL) containing cellulose nanofibrils (CNF) assemble on a standard 96 well plate. Various LbL assembly parameters, multiple cell seeding concentration, and two tumor cell lines (HEK 293 T, HCT 116) are utilized to generate and characterize spheroids. The number and the proliferation of generated spheroids in correlation to the number of LbL-CNF bi-layers, the viability, and the response to the anti-cancer drug are examined. The spheroids are formed and proliferated on the LbL-CNF coated wells with no significant difference in connection to the number of LbL-CNF bi-layers; however, the number of formed spheroids correlates positively with the cell seeding concentration (122 ± 17) for HCT 116 and (42 ± 8) for HEK 293T cell lines at 700 cells ml-1 . The generated spheroids proliferate progressively up to (309, 663) μm of HCT 116 and HEK 293T cell lines on the 5 bi-layers coated wells respectively overtime with maintaining viability. The (HCT 116) spheroids react to the anti-cancer drug. We demonstrate a new platform (LbL-CNF) coating strategy for spheroids generation, with high performance and efficiency to test anti-cancer drugs. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Zenib Aljadi
- School of Engineering Sciences in Chemistry, Biotechnology and Health CBH, Division of Nanobiotechnology, Department of Protein Science, Science for Life Laboratory, KTH Royal Institute of Technology, Stockholm, Sweden
| | - Negar Abbasi Aval
- Fibre and Polymer Technology, KTH Royal Institute of Technology, Stockholm, Sweden
| | - Tharagan Kumar
- School of Engineering Sciences in Chemistry, Biotechnology and Health CBH, Division of Nanobiotechnology, Department of Protein Science, Science for Life Laboratory, KTH Royal Institute of Technology, Stockholm, Sweden
| | - Taoyu Qin
- School of Engineering Sciences in Chemistry, Biotechnology and Health CBH, Division of Nanobiotechnology, Department of Protein Science, Science for Life Laboratory, KTH Royal Institute of Technology, Stockholm, Sweden
| | - Harisha Ramachandraiah
- School of Engineering Sciences in Chemistry, Biotechnology and Health CBH, Division of Nanobiotechnology, Department of Protein Science, Science for Life Laboratory, KTH Royal Institute of Technology, Stockholm, Sweden
| | - Torbjörn Pettersson
- Fibre and Polymer Technology, KTH Royal Institute of Technology, Stockholm, Sweden
| | - Aman Russom
- School of Engineering Sciences in Chemistry, Biotechnology and Health CBH, Division of Nanobiotechnology, Department of Protein Science, Science for Life Laboratory, KTH Royal Institute of Technology, Stockholm, Sweden
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20
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Lentz S, Trossmann VT, Borkner CB, Beyersdorfer V, Rottmar M, Scheibel T. Structure-Property Relationship Based on the Amino Acid Composition of Recombinant Spider Silk Proteins for Potential Biomedical Applications. ACS APPLIED MATERIALS & INTERFACES 2022; 14:31751-31766. [PMID: 35786828 DOI: 10.1021/acsami.2c09590] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Improving biomaterials by engineering application-specific and adjustable properties is of increasing interest. Most of the commonly available materials fulfill the mechanical and physical requirements of relevant biomedical applications, but they lack biological functionality, including biocompatibility and prevention of microbial infestation. Thus, research has focused on customizable, application-specific, and modifiable surface coatings to cope with the limitations of existing biomaterials. In the case of adjustable degradation and configurable interaction with body fluids and cells, these coatings enlarge the applicability of the underlying biomaterials. Silks are interesting coating materials, e.g., for implants, since they exhibit excellent biocompatibility and mechanical properties. Herein, we present putative implant coatings made of five engineered recombinant spider silk proteins derived from the European garden spider Araneus diadematus fibroins (ADF), differing in amino acid sequence and charge. We analyzed the influence of the underlying amino acid composition on wetting behavior, blood compatibility, biodegradability, serum protein adsorption, and cell adhesion. The outcome of the comparison indicates that spider silk coatings can be engineered for explicit biomedical applications.
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Affiliation(s)
- Sarah Lentz
- Lehrstuhl Biomaterialien, Fakultät für Ingenieurwissenschaften, Universität Bayreuth, Rüdiger-Bormann-Str. 1, 95447 Bayreuth, Germany
| | - Vanessa T Trossmann
- Lehrstuhl Biomaterialien, Fakultät für Ingenieurwissenschaften, Universität Bayreuth, Rüdiger-Bormann-Str. 1, 95447 Bayreuth, Germany
| | - Christian B Borkner
- Lehrstuhl Biomaterialien, Fakultät für Ingenieurwissenschaften, Universität Bayreuth, Rüdiger-Bormann-Str. 1, 95447 Bayreuth, Germany
| | - Vivien Beyersdorfer
- Lehrstuhl Biomaterialien, Fakultät für Ingenieurwissenschaften, Universität Bayreuth, Rüdiger-Bormann-Str. 1, 95447 Bayreuth, Germany
| | - Markus Rottmar
- Laboratory for Materials-Biology Interactions, Empa Swiss Federal Laboratories for Materials Science and Technology, CH-9014 St. Gallen, Switzerland
| | - Thomas Scheibel
- Lehrstuhl Biomaterialien, Fakultät für Ingenieurwissenschaften, Universität Bayreuth, Rüdiger-Bormann-Str. 1, 95447 Bayreuth, Germany
- Bayerisches Polymerinstitut (BPI), Bayreuther Zentrum für Kolloide und Grenzflächen (BZKG), Bayreuther Zentrum für Molekulare Biowissenschaften (BZMB), Bayreuther Materialzentrum (BayMAT), Universität Bayreuth, Universitätsstr. 30, 95440 Bayreuth, Germany
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21
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Yoshikawa C, Sakakibara K, Nonsuwan P, Shobo M, Yuan X, Matsumura K. Cellular Flocculation Driven by Concentrated Polymer Brush-Modified Cellulose Nanofibers with Different Surface Charges. Biomacromolecules 2022; 23:3186-3197. [DOI: 10.1021/acs.biomac.2c00294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Chiaki Yoshikawa
- Research Center for Functional Materials, National Institute for Materials Science (NIMS), Tsukuba, Ibaraki 305-0047, Japan
| | - Keita Sakakibara
- Research Institute for Sustainable Chemistry, National Institute of Advanced Industrial Science and Technology (AIST), 3-11-32 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-0046, Japan
| | - Punnida Nonsuwan
- Research Center for Functional Materials, National Institute for Materials Science (NIMS), Tsukuba, Ibaraki 305-0047, Japan
| | - Miwako Shobo
- Research Center for Functional Materials, National Institute for Materials Science (NIMS), Tsukuba, Ibaraki 305-0047, Japan
| | - Xida Yuan
- School of Materials Science, Japan Advanced Institute of Science and Technology, 1-1 Asahidai, Nomi, Ishikawa 923-1292, Japan
| | - Kazuaki Matsumura
- School of Materials Science, Japan Advanced Institute of Science and Technology, 1-1 Asahidai, Nomi, Ishikawa 923-1292, Japan
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22
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Physical optimization of cell proliferation and differentiation using spinner flask and microcarriers. AMB Express 2022; 12:63. [PMID: 35639184 PMCID: PMC9156609 DOI: 10.1186/s13568-022-01397-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Accepted: 05/04/2022] [Indexed: 12/05/2022] Open
Abstract
Abstract The traditional breeding industry has been increasingly saturated and caused environmental pollution, disease transmission, excessive resource use, and methane emission; however, it still cannot meet the needs of the growing population. To explore other alternatives, researchers focused on cell agriculture and cell-based meat, especially large-scale cell culture. As a prerequisite for production, large-scale culture technology has become an important bottleneck restricting cell-based meat industrialization. In this study, the single-factor variable method was adopted to examine the influence of Cytodex1 microcarrier pretreatment, spinner flask reaction vessel, cell culture medium, serum and cell incubation, and other influencing factors on large-scale cell cultures to identify the optimization parameters suitable for 3D culture environment. Collagen and 3D culture were also prospectively explored to promote myogenesis and cultivate tissue-like muscle fibers that contract spontaneously. This research lays a theoretical foundation and an exploratory practice for large-scale cell cultures and provides a study reference for the microenvironment of myoblast culture in vitro, a feasible direction for the cell therapy of muscular dystrophy, and prerequisites for the industrialized manufacturing of cell-based meat. Graphical Abstract Graphical summary: Research on large-scale myoblast culture using spinner flasks and microcarriers. For cell culture, the microcarriers were pretreated with UV and collagen. Cell seeding condition, spinner flask speed, resting time, and spinner flask culture microenvironment were then optimized. Finally, two culture systems were prepared: a culture system based on large-scale cell expansion and a culture system for myogenesis promotion and differentiation ![]()
Supplementary Information The online version contains supplementary material available at 10.1186/s13568-022-01397-8.
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23
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Influence of surface coatings on the adhesion of Shewanella oneidensis MR-1 to hematite. J Colloid Interface Sci 2022; 608:2955-2963. [PMID: 34844734 DOI: 10.1016/j.jcis.2021.11.020] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Revised: 10/19/2021] [Accepted: 11/06/2021] [Indexed: 11/22/2022]
Abstract
The adhesion of dissimilatory iron reducing bacteria (DIRB) to iron oxides is an important process to initiate direct extracellular electron transfer. Iron oxides in natural environments are often coated by organic matter or silica (SiO2) which alters their surface physicochemical properties. To investigate the influence of these surface coatings, we characterized the dynamic adhesion processes of Shewanella oneidensis MR-1 to bare hematite, humic acid-coated hematite (hematite-HA), and SiO2-coated hematite (hematite-SiO2) using Quartz Crystal Microbalance with Dissipation (QCM-D). The molecular-level process and mechanism were investigated using in situ Attenuated Total Reflectance - Fourier Transform Infrared (ATR-FTIR) spectrometry. We found that MR-1 formed a rigid bacterial layer on bare hematite. Coating with HA or SiO2 decreased the surface cell density during the initial adhesion stage, and compromised the stability of the subsequent bacterial attachment. The FTIR combined with two-dimensional correlation spectroscopy (2D-COS) analysis showed that C-moieties of polysaccharides dominated interactions in initial adhesion on HA and SiO2-coated hematite. In the longer term, the HA coating hindered the adsorption of amide, but promoted the binding of polysaccharide C-moieties to hematite. We concluded that, in general, both the HA and SiO2 coatings reduced the attachment of MR-1 on hematite. These results advance our understanding of the roles of surface coatings on microbe-mineral interactions, which has significant implications for a series of biogeochemical processes in nature.
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24
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HDL Structure. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2022; 1377:1-11. [DOI: 10.1007/978-981-19-1592-5_1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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25
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Yang R, Liu W, Wang A, Deng X, Feng Y, Zhang Q, Li Z, Luo F, Li J, Tan H. Shape memory polyurethane potentially used for vascular stents with water-induced stiffening and improved hemocompatibility. J Mater Chem B 2022; 10:8918-8930. [DOI: 10.1039/d2tb01681h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
We designed a shape memory polyurethane potentially used for vascular stents with water-induced stiffening in vivo and improved hemocompatibility.
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Affiliation(s)
- Ruibo Yang
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Med-X Center for Materials, Sichuan University, Chengdu 610065, China
| | - Wenkai Liu
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Med-X Center for Materials, Sichuan University, Chengdu 610065, China
| | - Ao Wang
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Med-X Center for Materials, Sichuan University, Chengdu 610065, China
| | - Xiaobo Deng
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Med-X Center for Materials, Sichuan University, Chengdu 610065, China
| | - Yuan Feng
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Med-X Center for Materials, Sichuan University, Chengdu 610065, China
| | - Qiao Zhang
- Department of Neurosurgery, West China Hospital, Sichuan University, Chengdu 610065, China
| | - Zhen Li
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Med-X Center for Materials, Sichuan University, Chengdu 610065, China
| | - Feng Luo
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Med-X Center for Materials, Sichuan University, Chengdu 610065, China
| | - Jiehua Li
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Med-X Center for Materials, Sichuan University, Chengdu 610065, China
| | - Hong Tan
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Med-X Center for Materials, Sichuan University, Chengdu 610065, China
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26
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Kikuchi T, Matsuura K, Shimizu T. Non-coating method for non-adherent cell culture using high molecular weight dextran sulfate and bovine serum albumin. J Biosci Bioeng 2021; 132:537-542. [PMID: 34518107 DOI: 10.1016/j.jbiosc.2021.08.006] [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: 06/14/2021] [Revised: 08/12/2021] [Accepted: 08/18/2021] [Indexed: 11/19/2022]
Abstract
Non-adherent cell culture surface has been widely used for producing cell spheroids and cell aggregates. The purpose of this study was to formulate a new method for non-adherent cell culture without coating or surface-modification that has been needed. We found that high-molecular-weight dextran sulfate (DS) and bovine serum albumin (BSA) synergistically prevented cell adhesion in media supplemented with no or low serum. This method worked on tissue culture-treated polystyrene surfaces as well as on commercially available low-attachment- and untreated polystyrene surfaces. Further investigation revealed that BSA may mediate the adsorption of DS to the surface. In addition, as the adsorption of fluorescently labeled fibronectin was inhibited by BSA alone, it appears that protein adsorption and cell adhesion do not always correlate. Finally, we demonstrated the successful formation of HepG2 spheroids and cardiomyocyte aggregates using this method. In conclusion, cell adhesion can be effectively suppressed by simply adding DS and BSA to the culture medium without coating or surface modification, and it may be useful for generating cell spheroids and aggregates.
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Affiliation(s)
- Tetsutaro Kikuchi
- Institute of Advanced Biomedical Engineering and Science, Tokyo Women's Medical University (TWIns), 8-1 Kawada-cho, Shinjuku-ku, Tokyo 162-8666, Japan.
| | - Katsuhisa Matsuura
- Institute of Advanced Biomedical Engineering and Science, Tokyo Women's Medical University (TWIns), 8-1 Kawada-cho, Shinjuku-ku, Tokyo 162-8666, Japan
| | - Tatsuya Shimizu
- Institute of Advanced Biomedical Engineering and Science, Tokyo Women's Medical University (TWIns), 8-1 Kawada-cho, Shinjuku-ku, Tokyo 162-8666, Japan
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27
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Darge HF, Chuang SH, Lai JY, Lin SY, Tsai HC. Preparation of thermosensitive PNIPAm-based copolymer coated cytodex 3 microcarriers for efficient nonenzymatic cell harvesting during 3D culturing. Biotechnol Bioeng 2021; 118:4076-4091. [PMID: 34251680 DOI: 10.1002/bit.27885] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Revised: 06/09/2021] [Accepted: 07/09/2021] [Indexed: 12/28/2022]
Abstract
Enzymatic detachment of cells might damage important features and functions of cells and could affect subsequent cell-based applications. Therefore, nonenzymatic cell detachment using thermosensitive polymer matrix is necessary for maintaining cell quality after harvesting. In this study, we prepared thermosensitive PNIPAm-co-AAc-b-PS and PNIPAm-co-AAm-b-PS copolymers and low critical solution temperature (LCST) was tuned near to body temperature. Then, spin coated polymer films were prepared for cell adhesion and thermal-induced cell detachment. The alpha-step analysis and scanning electron microscope image of the films suggested that the thickness of the films depends on the molecular weight and concentration which ranged from 206 to 1330 nm for PNIPAm-co-AAc-b-PS and 97.5-497 nm for PNIPAm-co-AAm-b-PS. The contact angles of the films verified that the polymer surface was moderately hydrophilic at 37°C. Importantly, RAW264.7 cells were convincingly proliferated on the films to a confluent of >80% within 48 h and abled to detach by reducing the temperature. However, relatively more cells were grown on PNIPAm-co-AAm-b-PS (5%w/v) films and thermal-induced cell detachment was more abundant in this formulation. As a result, PNIPAm-co-AAm-b-PS (5%w/v) was further used to coat commercial cytodex 3 microcarriers for 3D cell culturing and interestingly enhanced cell detachment with preserved potential of recovery was observed at a temperature of below LCST. Thus, surface modification of microcarriers with thermosensitive PNIPAm-co-AAm-b-PS could be vital strategy for nonenzymatic cell detachment and to achieve adequate number of cells with maximum cell viability and functionality.
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Affiliation(s)
- Haile F Darge
- Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology, Taipei, Taiwan.,Advanced Membrane Materials Center, National Taiwan University of Science and Technology, Taipei, Taiwan.,College of Medicine and Health Science, Bahir Dar University, Bahir Dar, Ethiopia
| | - Shun-Hao Chuang
- Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology, Taipei, Taiwan
| | - Juin-Yih Lai
- Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology, Taipei, Taiwan.,Advanced Membrane Materials Center, National Taiwan University of Science and Technology, Taipei, Taiwan.,R&D Center for Membrane Technology, Chung Yuan Christian University, Chungli, Taiwan
| | - Shuian-Yin Lin
- Biomedical Technology and Device Research Center, Industrial Technology Research Institute, Hsinchu, Taiwan
| | - Hsieh-Chih Tsai
- Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology, Taipei, Taiwan.,Advanced Membrane Materials Center, National Taiwan University of Science and Technology, Taipei, Taiwan.,R&D Center for Membrane Technology, Chung Yuan Christian University, Chungli, Taiwan
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28
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Zhang X, Xiao L, Ding Z, Lu Q, Kaplan DL. Fragile-Tough Mechanical Reversion of Silk Materials via Tuning Supramolecular Assembly. ACS Biomater Sci Eng 2021; 7:2337-2345. [PMID: 33835795 DOI: 10.1021/acsbiomaterials.1c00181] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Regenerated silk nanofibers are interesting as protein-based material building blocks due to their unique structure and biological origin. Here, a new strategy based on control of supramolecular assembly was developed to regulate interactions among silk nanofibers by changing the solvent, achieving tough mechanical features for silk films. Formic acid was used to replace water related to charge repulsion of silk nanofibers in solution, inducing interactions among the nanofibers. The films formed under these conditions had an elastic modulus of 3.4 ± 0.3 GPa, an ultimate tensile strength of 76.9 ± 1.6 MPa, and an elongation at break of 3.5 ± 0.1%, while the materials formed from aqueous solutions remained fragile. The mechanical performance of the formic acid-derived nanofiber films was further improved through post-stretching or via the addition of graphene. In addition, the silk nanofiber films could be functionalized with various bioactive ingredients such as curcumin. These new silk nanofiber films with a unique combination of mechanical properties and functions provide new biomaterials achieved using traditional solvents and processes through insight and control of their assembly mechanisms in solution.
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Affiliation(s)
- Xiaoyi Zhang
- National Engineering Laboratory for Modern Silk & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215123, China
| | - Liying Xiao
- National Engineering Laboratory for Modern Silk & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215123, China
| | - Zhaozhao Ding
- National Engineering Laboratory for Modern Silk & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215123, China
| | - Qiang Lu
- National Engineering Laboratory for Modern Silk & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215123, China
| | - David L Kaplan
- Department of Biomedical Engineering, Tufts University, Medford, Massachusetts 02155, United States
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29
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Studies of osteoblast-like MG-63 cellular proliferation and differentiation with cyclic stretching cell culture system on biomimetic hydrophilic layers modified polydimethylsiloxane substrate. Biochem Eng J 2021. [DOI: 10.1016/j.bej.2021.107946] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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30
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Cámara-Torres M, Sinha R, Scopece P, Neubert T, Lachmann K, Patelli A, Mota C, Moroni L. Tuning Cell Behavior on 3D Scaffolds Fabricated by Atmospheric Plasma-Assisted Additive Manufacturing. ACS APPLIED MATERIALS & INTERFACES 2021; 13:3631-3644. [PMID: 33448783 PMCID: PMC7880529 DOI: 10.1021/acsami.0c19687] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
Three-dimensional (3D) scaffolds with optimum physicochemical properties are able to elicit specific cellular behaviors and guide tissue formation. However, cell-material interactions are limited in scaffolds fabricated by melt extrusion additive manufacturing (ME-AM) of synthetic polymers, and plasma treatment can be used to render the surface of the scaffolds more cell adhesive. In this study, a hybrid AM technology, which combines a ME-AM technique with an atmospheric pressure plasma jet, was employed to fabricate and plasma treat scaffolds in a single process. The organosilane monomer (3-aminopropyl)trimethoxysilane (APTMS) and a mixture of maleic anhydride and vinyltrimethoxysilane (MA-VTMOS) were used for the first time to plasma treat 3D scaffolds. APTMS treatment deposited plasma-polymerized films containing positively charged amine functional groups, while MA-VTMOS introduced negatively charged carboxyl groups on the 3D scaffolds' surface. Argon plasma activation was used as a control. All plasma treatments increased the surface wettability and protein adsorption to the surface of the scaffolds and improved cell distribution and proliferation. Notably, APTMS-treated scaffolds also allowed cell attachment by electrostatic interactions in the absence of serum. Interestingly, cell attachment and proliferation were not significantly affected by plasma treatment-induced aging. Also, while no significant differences were observed between plasma treatments in terms of gene expression, human mesenchymal stromal cells (hMSCs) could undergo osteogenic differentiation on aged scaffolds. This is probably because osteogenic differentiation is rather dependent on initial cell confluency and surface chemistry might play a secondary role.
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Affiliation(s)
- Maria Cámara-Torres
- Complex
Tissue Regeneration Department, MERLN Institute for Technology-Inspired
Regenerative Medicine, Maastricht University, Universiteitssingel 40, 6229 ER Maastricht, The Netherlands
| | - Ravi Sinha
- Complex
Tissue Regeneration Department, MERLN Institute for Technology-Inspired
Regenerative Medicine, Maastricht University, Universiteitssingel 40, 6229 ER Maastricht, The Netherlands
| | - Paolo Scopece
- Nadir
S.r.l., Via Torino, 155/b, 30172 Venice, Italy
| | - Thomas Neubert
- Fraunhofer
Institute for Surface Engineering and Thin Films IST, Bienroder Weg 54E, 38108 Braunschweig, Germany
| | - Kristina Lachmann
- Fraunhofer
Institute for Surface Engineering and Thin Films IST, Bienroder Weg 54E, 38108 Braunschweig, Germany
| | - Alessandro Patelli
- Department
of Physics and Astronomy, Padova University, Via Marzolo, 8, 35131 Padova, Italy
| | - Carlos Mota
- Complex
Tissue Regeneration Department, MERLN Institute for Technology-Inspired
Regenerative Medicine, Maastricht University, Universiteitssingel 40, 6229 ER Maastricht, The Netherlands
| | - Lorenzo Moroni
- Complex
Tissue Regeneration Department, MERLN Institute for Technology-Inspired
Regenerative Medicine, Maastricht University, Universiteitssingel 40, 6229 ER Maastricht, The Netherlands
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31
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Kumar S, Parekh SH. Molecular Control of Interfacial Fibronectin Structure on Graphene Oxide Steers Cell Fate. ACS APPLIED MATERIALS & INTERFACES 2021; 13:2346-2359. [PMID: 33412842 DOI: 10.1021/acsami.0c21042] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The use of graphene-based materials (GBMs) for tissue-engineering applications has been growing exponentially because of the seemingly endless multifunctional and tunable physicochemical properties of graphene that can be exploited to influence cellular behavior. Despite many demonstrations wherein cell physiology has been modulated on different GBMs, a clear mechanism connecting the different physicochemical properties of GBMs to cell fate has remained elusive. In this work, we demonstrate how different GBMs can be used to bias cell fate in a multiscale study-starting from serum protein (fibronectin) adsorption and its molecular scale morphology, structure, and bioactivity and ending with stem cell response. Using heat to chemically reduce graphene oxide without changing physical properties, we show that graphene chemistry controls surface-adsorbed molecular conformation and morphology, epitope presentation, and stem cell attachment. Moreover, this subtle change in the protein structure was found to drive increased bone differentiation of stem cells, suggesting that the physicochemical properties of graphene biases cell fate by directly influencing the adsorbed protein structure and subsequent biochemical activity.
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Affiliation(s)
- Sachin Kumar
- Department of Biomedical Engineering, University of Texas at Austin, 107 W. Dean Keeton Rd., Austin, Texas 78712, United States
- Department of Molecular Spectroscopy, Max Planck Institute for Polymer Research, Ackermannweg 10, D-55128 Mainz, Germany
| | - Sapun H Parekh
- Department of Biomedical Engineering, University of Texas at Austin, 107 W. Dean Keeton Rd., Austin, Texas 78712, United States
- Department of Molecular Spectroscopy, Max Planck Institute for Polymer Research, Ackermannweg 10, D-55128 Mainz, Germany
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32
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Chen Z, Fan Y, Wang L, Bian Z, Hao L. Controlling the adsorption of osteopontin for mediating cell behaviour by using self-assembled monolayers with varying surface chemistry. RSC Adv 2021; 11:36360-36366. [PMID: 35492794 PMCID: PMC9043331 DOI: 10.1039/d1ra04063d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Accepted: 10/22/2021] [Indexed: 12/02/2022] Open
Abstract
Osteopontin (OPN) is an important protein for mediating cell behaviour on biomaterials. However, the interactions between the chemical groups on the biomaterial surface and OPN still need to be further clarified, which has restricted the application of OPN in biomaterial functionalization. In the present study, we developed different self-assembled monolayers (SAMs) with specific chemical groups, including SAMs-OH, SAMs-OEG, SAMs-COOH, SAMs-NH2, and SAMs-PO3H2, to study the behavior of OPN on these SAMs. The results showed that SAMs-NH2 could strongly adsorb OPN, and the amount of protein was highest on this material. Meanwhile, the lowest amount of OPN was present on SAMs-OEG. Interestingly, the unit-mass trend of bound OPN monoclonal antibodies (mAbs) on the SAMs was opposite to the OPN adsorption trend: lowest on SAMs-NH2 but highest on SAMs-OEG. In vitro cell assay results showed that mouse bone marrow mesenchymal stem cells (mBMSCs) on SAMs-COOH, SAMs-NH2, and SAMs-PO3H2 with pre-adsorbed OPN showed promoted behaviour, in terms of spreading, viability, and the expression levels of αv and β3 genes, compared with the other two SAMs, demonstrating the higher bioactivity of the adsorbed OPN. We believe that our findings will have great potential for developing OPN-activated biomaterials. Osteopontin (OPN) is an important protein for mediating cell behaviour on biomaterials.![]()
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Affiliation(s)
- Zhuoying Chen
- School of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Yan Fan
- National Engineering Research Center for Tissue Restoration and Reconstruction, Guangzhou 510006, China
| | - Lin Wang
- School of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, China
- National Engineering Research Center for Tissue Restoration and Reconstruction, Guangzhou 510006, China
- Key Laboratory of Biomedical Materials and Engineering of the Ministry of Education, Guangzhou 510006, China
| | - Zhengqi Bian
- School of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, China
- Key Laboratory of Biomedical Engineering of Guangdong Province, Guangzhou 510006, China
| | - Lijing Hao
- School of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, China
- Innovation Center for Tissue Restoration and Reconstruction, Guangzhou 510006, China
- Bioland Laboratory (Guangzhou Regenerative Medicine and Health Guangdong Laboratory), 510005 Guangzhou, China
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Pajorova J, Skogberg A, Hadraba D, Broz A, Travnickova M, Zikmundova M, Honkanen M, Hannula M, Lahtinen P, Tomkova M, Bacakova L, Kallio P. Cellulose Mesh with Charged Nanocellulose Coatings as a Promising Carrier of Skin and Stem Cells for Regenerative Applications. Biomacromolecules 2020; 21:4857-4870. [PMID: 33136375 DOI: 10.1021/acs.biomac.0c01097] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Engineering artificial skin constructs is an ongoing challenge. An ideal material for hosting skin cells is still to be discovered. A promising candidate is low-cost cellulose, which is commonly fabricated in the form of a mesh and is applied as a wound dressing. Unfortunately, the structure and the topography of current cellulose meshes are not optimal for cell growth. To enhance the surface structure and the physicochemical properties of a commercially available mesh, we coated the mesh with wood-derived cellulose nanofibrils (CNFs). Three different types of mesh coatings are proposed in this study as a skin cell carrier: positively charged cationic cellulose nanofibrils (cCNFs), negatively charged anionic cellulose nanofibrils (aCNFs), and a combination of these two materials (c+aCNFs). These cell carriers were seeded with normal human dermal fibroblasts (NHDFs) or with human adipose-derived stem cells (ADSCs) to investigate cell adhesion, spreading, morphology, and proliferation. The negatively charged aCNF coating significantly improved the proliferation of both cell types. The positively charged cCNF coating significantly enhanced the adhesion of ADSCs only. The number of NHDFs was similar on the cCNF coatings and on the noncoated pristine cellulose mesh. However, the three-dimensional (3D) structure of the cCNF coating promoted cell survival. The c+aCNF construct proved to combine benefits from both types of CNFs, which means that the c+aCNF cell carrier is a promising candidate for further application in skin tissue engineering.
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Affiliation(s)
- Julia Pajorova
- Department of Biomaterials and Tissue Engineering, Institute of Physiology of the Czech Academy of Sciences, Videnska 1083, 14220 Prague, Czech Republic.,2nd Faculty of Medicine, Charles University, V Uvalu 84, 15006 Prague, Czech Republic
| | - Anne Skogberg
- BioMediTech Institute and Faculty of Medicine and Health Technology (MET), Tampere University, Korkeakoulunkatu 3, 33720 Tampere, Finland
| | - Daniel Hadraba
- Department of Biomathematics, Institute of Physiology of the Czech Academy of Sciences, Videnska 1083, 14220 Prague, Czech Republic
| | - Antonin Broz
- Department of Biomaterials and Tissue Engineering, Institute of Physiology of the Czech Academy of Sciences, Videnska 1083, 14220 Prague, Czech Republic
| | - Martina Travnickova
- Department of Biomaterials and Tissue Engineering, Institute of Physiology of the Czech Academy of Sciences, Videnska 1083, 14220 Prague, Czech Republic.,2nd Faculty of Medicine, Charles University, V Uvalu 84, 15006 Prague, Czech Republic
| | - Marketa Zikmundova
- Department of Biomaterials and Tissue Engineering, Institute of Physiology of the Czech Academy of Sciences, Videnska 1083, 14220 Prague, Czech Republic
| | - Mari Honkanen
- Tampere Microscopy Center, Tampere University, Korkeakoulunkatu 3, 33720 Tampere, Finland
| | - Markus Hannula
- BioMediTech Institute and Faculty of Medicine and Health Technology (MET), Tampere University, Korkeakoulunkatu 3, 33720 Tampere, Finland
| | - Panu Lahtinen
- VTT Technical Research Center of Finland, Tietotie 4E, 02150 Espoo, Finland
| | - Maria Tomkova
- Faculty of Biotechnology and Food Sciences, Slovak University of Agriculture in Nitra, Tr. A. Hlinku 2, 94976 Nitra, Slovak Republic
| | - Lucie Bacakova
- Department of Biomaterials and Tissue Engineering, Institute of Physiology of the Czech Academy of Sciences, Videnska 1083, 14220 Prague, Czech Republic
| | - Pasi Kallio
- BioMediTech Institute and Faculty of Medicine and Health Technology (MET), Tampere University, Korkeakoulunkatu 3, 33720 Tampere, Finland
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Balakin S, Yun YS, Lee J, Kang EH, Spohn J, Yun IS, Opitz J, Cuniberti G, Yeo JS. In vitro characterization of osteoblast cells on polyelectrolyte multilayers containing detonation nanodiamonds. ACTA ACUST UNITED AC 2020; 15:055026. [PMID: 32526712 DOI: 10.1088/1748-605x/ab9baf] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Nanoparticle-enhanced coatings of bone implants are a promising method to facilitate sustainable wound healing, leading to an increase in patient well-being. This article describes the in vitro characterization of osteoblast cells interacting with polyelectrolyte multilayers, which contain detonation nanodiamonds (NDs), as a novel class of carbon-based coating material, which presents a unique combination of photoluminescence and drug-binding properties. The cationic polyelectrolyte, namely polydiallyldimethylammonium chloride (PDDA), has been used to immobilize NDs on silica glass. The height of ND-PDDA multilayers varies from a minimum of 10 nm for one bilayer to a maximum of 90 nm for five bilayers of NDs and PDDA. Human fetal osteoblasts (hFOBs) cultured on ND-PDDA multilayers show a large number of focal adhesions, which were studied via quantitative fluorescence imaging analysis. The influence of the surface roughness on the filopodia formation was assessed via scanning electron microscopy and atomic force microscopy. The nano-rough surface of five bilayers constrained the filopodia formation. The hFOBs grown on NDs tend to show not only a similar cell morphology compared to cells cultured on extracellular matrix protein-coated silica glass substrates, but also increased cell viability by about 40%. The high biocompatibility of the ND-PDDA multilayers, indicated via high cell proliferation and sound cell adhesion, shows their potential for biomedical applications such as drug-eluting coatings and biomaterials in general.
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Affiliation(s)
- Sascha Balakin
- Institute for Materials Science and Max Bergmann Center of Biomaterials, Technische Universität Dresden, Dresden, Germany. Bio- and Nanotechnology, Fraunhofer Institute for Ceramic Technologies and Systems IKTS Material Diagnostics, Dresden, Germany. Both authors contributed equally to this manuscript
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35
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Sarrigiannidis S, Moussa H, Dobre O, Dalby MJ, Tamimi F, Salmeron-Sanchez M. Chiral Tartaric Acid Improves Fracture Toughness of Bioactive Brushite-Collagen Bone Cements. ACS APPLIED BIO MATERIALS 2020; 3:5056-5066. [PMID: 32904797 PMCID: PMC7461128 DOI: 10.1021/acsabm.0c00555] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Accepted: 07/06/2020] [Indexed: 01/08/2023]
Abstract
Brushite cements are promising bone regeneration materials with limited biological and mechanical properties. Here, we engineer a mechanically improved brushite-collagen type I cement with enhanced biological properties by use of chiral chemistry; d- and l-tartaric acid were used to limit crystal growth and increase the mechanical properties of brushite-collagen cements. The impact of the chiral molecules on the cements was examined with Fourier-transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), and scanning electron microscopy (SEM). A 3-point bend test was utilized to study the fracture toughness, and cell attachment and morphology studies were carried out to demonstrate biocompatibility. XRD and SEM analyses showed that l-, but not d-tartaric acid, significantly restrained brushite crystal growth by binding to the {010} plane of the mineral and increased brushite crystal packing and the collagen interaction area. l-Tartaric acid significantly improved fracture toughness compared to traditional brushite by 30%. Collagen significantly enhanced cell morphology and focal adhesion expression on l-tartaric acid-treated brushite cements.
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Affiliation(s)
- Stylianos
O. Sarrigiannidis
- Centre
for the Cellular Microenvironment, University
of Glasgow, Rankine Building, 79−85 Oakfield Ave, Glasgow G12 8LT, United
Kingdom
| | - Hanan Moussa
- Faculty
of Dentistry, McGill University, Strathcona Building, 3640 University
Street, Montreal, Quebec H3A 2B2, Canada
- Faculty
of Dentistry, Benghazi University, Benghazi 9504, Libya
| | - Oana Dobre
- Centre
for the Cellular Microenvironment, University
of Glasgow, Rankine Building, 79−85 Oakfield Ave, Glasgow G12 8LT, United
Kingdom
| | - Matthew J. Dalby
- Centre
for the Cellular Microenvironment, University
of Glasgow, Joseph Black Building, University Pl, Glasgow G12 8QQ, United Kingdom
| | - Faleh Tamimi
- Faculty
of Dentistry, McGill University, Strathcona Building, 3640 University
Street, Montreal, Quebec H3A 2B2, Canada
- College
of Dental Medicine, Qatar University, Doha, Qatar
| | - Manuel Salmeron-Sanchez
- Centre
for the Cellular Microenvironment, University
of Glasgow, Rankine Building, 79−85 Oakfield Ave, Glasgow G12 8LT, United
Kingdom
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36
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Li Y, Dong Y, Zhang Y, Yang Y, Hu R, Mu P, Liu X, Lin C, Huang Q. Synergistic effect of crystalline phase on protein adsorption and cell behaviors on TiO2 nanotubes. APPLIED NANOSCIENCE 2020. [DOI: 10.1007/s13204-019-01078-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Overcoming the Inflammatory Stage of Non-Healing Wounds: In Vitro Mechanism of Action of Negatively Charged Microspheres (NCMs). NANOMATERIALS 2020; 10:nano10061108. [PMID: 32503283 PMCID: PMC7353184 DOI: 10.3390/nano10061108] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/09/2020] [Revised: 05/23/2020] [Accepted: 06/01/2020] [Indexed: 01/20/2023]
Abstract
Negatively charged microspheres (NCMs) represent a new therapeutic approach for wound healing since recent clinical trials have shown NCM efficacy in the recovery of hard-to-heal wounds that tend to stay in the inflammatory phase, unlocking the healing process. The aim of this study was to elucidate the NCM mechanism of action. NCMs were extracted from a commercial microsphere formulation (PolyHeal® Micro) and cytotoxicity, attachment, proliferation and viability assays were performed in keratinocytes and dermal fibroblasts, while macrophages were used for the phagocytosis and polarization assays. We demonstrated that cells tend to attach to the microsphere surface, and that NCMs are biocompatible and promote cell proliferation at specific concentrations (50 and 10 NCM/cell) by a minimum of 3 fold compared to the control group. Furthermore, NCM internalization by macrophages seemed to drive these cells to a noninflammatory condition, as demonstrated by the over-expression of CD206 and the under-expression of CD64, M2 and M1 markers, respectively. NCMs are an effective approach for reverting the chronic inflammatory state of stagnant wounds (such as diabetic wounds) and thus for improving wound healing.
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38
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Wysotzki P, Sancho A, Gimsa J, Groll J. A comparative analysis of detachment forces and energies in initial and mature cell-material interaction. Colloids Surf B Biointerfaces 2020; 190:110894. [DOI: 10.1016/j.colsurfb.2020.110894] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Revised: 01/14/2020] [Accepted: 02/20/2020] [Indexed: 12/31/2022]
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Schroepfer M, Junghans F, Voigt D, Meyer M, Breier A, Schulze-Tanzil G, Prade I. Gas-Phase Fluorination on PLA Improves Cell Adhesion and Spreading. ACS OMEGA 2020; 5:5498-5507. [PMID: 32201842 PMCID: PMC7081643 DOI: 10.1021/acsomega.0c00126] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Accepted: 02/25/2020] [Indexed: 06/10/2023]
Abstract
For the regeneration or creation of functional tissues, biodegradable biomaterials including polylactic acid (PLA) are widely preferred. Modifications of the material surface are quite common to improve cell-material interactions and thereby support the biological outcome. Typical approaches include a wet chemical treatment with mostly hazardous substances or a functionalization with plasma. In the present study, gas-phase fluorination was applied to functionalize the PLA surfaces in a simple and one-step process. The biological response including biocompatibility, cell adhesion, cell spreading, and proliferation was analyzed in cell culture experiments with fibroblasts L929 and correlated with changes in the surface properties. Surface characterization methods including surface energy and isoelectric point measurements, X-ray photoelectron spectroscopy, and atomic force microscopy were applied to identify the effects of fluorination on PLA. Gas-phase fluorination causes the formation of C-F bonds in the PLA backbone, which induce a shift to a more hydrophilic and polar surface. The slightly negatively charged surface dramatically improves cell adhesion and spreading of cells on the PLA even with low fluorine content. The results indicate that this improved biological response is protein- but not integrin-dependent. Gas-phase fluorination is therefore an efficient technique to improve cellular response to biomaterial surfaces without losing cytocompatibility.
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Affiliation(s)
- Michaela Schroepfer
- Research
Institute of Leather and Plastic Sheeting (FILK), Meissner Ring 1-5, 09599 Freiberg, Germany
| | - Frauke Junghans
- Research
Institute of Leather and Plastic Sheeting (FILK), Meissner Ring 1-5, 09599 Freiberg, Germany
| | - Diana Voigt
- Research
Institute of Leather and Plastic Sheeting (FILK), Meissner Ring 1-5, 09599 Freiberg, Germany
| | - Michael Meyer
- Research
Institute of Leather and Plastic Sheeting (FILK), Meissner Ring 1-5, 09599 Freiberg, Germany
| | - Anette Breier
- Leibniz
Institute of Polymer Research Dresden, Hohe Straße 6, 01069 Dresden, Germany
| | - Gundula Schulze-Tanzil
- Institute
of Anatomy and Cell Biology, Paracelsus
Medical University, Nathan
Str. 1, 90419 Nuremberg, Germany
| | - Ina Prade
- Research
Institute of Leather and Plastic Sheeting (FILK), Meissner Ring 1-5, 09599 Freiberg, Germany
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Lerman MJ, Smith BT, Gerald AG, Santoro M, Fookes JA, Mikos AG, Fisher JP. Aminated 3D Printed Polystyrene Maintains Stem Cell Proliferation and Osteogenic Differentiation. Tissue Eng Part C Methods 2020; 26:118-131. [PMID: 31971874 PMCID: PMC7041340 DOI: 10.1089/ten.tec.2019.0217] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2019] [Accepted: 11/18/2019] [Indexed: 12/14/2022] Open
Abstract
As 3D printing becomes more common and the technique is used to build culture platforms, it is imperative to develop surface treatments for specific responses. The advantages of aminating and oxidizing polystyrene (PS) for human mesenchymal stem cell (hMSC) proliferation and osteogenic differentiation are investigated. We find that ammonia (NH3) plasma incorporates amines while oxygen plasma adds carbonyl and carboxylate groups. Across 2D, 3D, and 3D dynamic culture, we find that the NH3- treated surfaces encouraged cell proliferation. Our results show that the NH3-treated scaffold was the only treatment allowing dynamic proliferation of hMSCs with little evidence of osteogenic differentiation. With osteogenic media, particularly in 3D culture, we find the NH3 treatment encouraged greater and earlier expression of RUNX2 and ALP. The NH3-treated PS scaffolds support hMSC proliferation without spontaneous osteogenic differentiation in static and dynamic culture. This work provides an opportunity for further investigations into shear profiling and coculture within the developed culture system toward developing a bone marrow niche model.
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Affiliation(s)
- Max J. Lerman
- Department of Materials Science and Engineering, University of Maryland, College Park, Maryland
- Center for Engineering Complex Tissues, University of Maryland, College Park, Maryland
| | - Brandon T. Smith
- Center for Engineering Complex Tissues, University of Maryland, College Park, Maryland
- Department of Bioengineering, MS-142 BioScience Research Collaborative, Rice University, Houston, Texas
| | - Anushka G. Gerald
- Center for Engineering Complex Tissues, University of Maryland, College Park, Maryland
- Fischell Department of Bioengineering, University of Maryland, College Park, Maryland
| | - Marco Santoro
- Center for Engineering Complex Tissues, University of Maryland, College Park, Maryland
- Fischell Department of Bioengineering, University of Maryland, College Park, Maryland
| | - James A. Fookes
- Center for Engineering Complex Tissues, University of Maryland, College Park, Maryland
- Fischell Department of Bioengineering, University of Maryland, College Park, Maryland
| | - Antonios G. Mikos
- Center for Engineering Complex Tissues, University of Maryland, College Park, Maryland
- Department of Bioengineering, MS-142 BioScience Research Collaborative, Rice University, Houston, Texas
| | - John P. Fisher
- Center for Engineering Complex Tissues, University of Maryland, College Park, Maryland
- Fischell Department of Bioengineering, University of Maryland, College Park, Maryland
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Ribeiro S, Puckert C, Ribeiro C, Gomes AC, Higgins MJ, Lanceros-Méndez S. Surface Charge-Mediated Cell-Surface Interaction on Piezoelectric Materials. ACS APPLIED MATERIALS & INTERFACES 2020; 12:191-199. [PMID: 31825193 DOI: 10.1021/acsami.9b17222] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Cell-material interactions play an essential role in the development of scaffold-based tissue engineering strategies. Cell therapies are still limited in treating injuries when severe damage causes irreversible loss of muscle cells. Electroactive biomaterials and, in particular, piezoelectric materials offer new opportunities for skeletal muscle tissue engineering since these materials have demonstrated suitable electroactive microenvironments for tissue development. In this study, the influence of the surface charge of piezoelectric poly(vinylidene fluoride) (PVDF) on cell adhesion was investigated. The cytoskeletal organization of C2C12 myoblast cells grown on different PVDF samples was studied by immunofluorescence staining, and the interactions between single live cells and PVDF were analyzed using an atomic force microscopy (AFM) technique termed single-cell force spectroscopy. It was demonstrated that C2C12 myoblast cells seeded on samples with net surface charge present a more elongated morphology, this effect being dependent on the surface charge but independent of the poling direction (negative or positive surface charge). It was further shown that the cell deadhesion forces of individual C2C12 cells were higher on PVDF samples with an overall negative surface charge (8.92 ± 0.45 nN) compared to those on nonpoled substrates (zero overall surface charge) (4.06 ± 0.20 nN). These findings explicitly demonstrate that the polarization/surface charge is an important parameter to determine cell fate as it affects C2C12 cell adhesion, which in turn will influence cell behavior, namely, cell proliferation and differentiation.
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Affiliation(s)
- Sylvie Ribeiro
- Centro/Departamento de Física , Universidade do Minho , 4710-057 Braga , Portugal
| | - Christina Puckert
- ARC Centre for Electromaterials Science (ACES), Innovation Campus , University of Wollongong , Squires Way , Wollongong , NSW 2500 , Australia
| | - Clarisse Ribeiro
- Centro/Departamento de Física , Universidade do Minho , 4710-057 Braga , Portugal
| | | | - Michael J Higgins
- ARC Centre for Electromaterials Science (ACES), Innovation Campus , University of Wollongong , Squires Way , Wollongong , NSW 2500 , Australia
| | - Senentxu Lanceros-Méndez
- BCMaterials, Basque Centre for Materials, Applications and Nanostructures , UPV/EHU Science Park , 48940 Leioa , Spain
- IKERBASQUE , Basque Foundation for Science , 48013 Bilbao , Spain
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42
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Well-defined monolith morphology regulates cell adhesion and its functions. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 105:110108. [PMID: 31546415 DOI: 10.1016/j.msec.2019.110108] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2019] [Revised: 08/06/2019] [Accepted: 08/20/2019] [Indexed: 01/07/2023]
Abstract
Hydrophilic epoxy resin-based monoliths were employed as cell culture substrates. The monoliths were made of a porous material with a bicontinuous structure that consisted of a porous channel and a resin skeleton. Monolith disks were prepared with a skinless surface through polymerization-induced spinodal decomposition-type phase separation. The pore sizes, which were well controlled by the polymerization temperature, ranged from 70 to 380 nm. The quantity of protein adsorbed per unit area and the early-stage adhesion of HepG2 cells on the monolith substrates were independent of pore size, meaning they were not affected by surface topology. Long-term cell adhesion, as indicated by adherent cell number and shape, as well as liver-specific gene expression were significantly affected by pore size. In terms of cell shape, number, and gene expression, pores of approximately 200 nm were most suitable for HepG2 cell growth. These results highlight the importance of monolith morphology for use as a cell culture substrate. The well-controlled morphology demonstrated in this work indicates monoliths are capable of supporting growth for various types of cells in a range of applications.
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43
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Liu R, Liu Q, Pan Z, Liu X, Ding J. Cell Type and Nuclear Size Dependence of the Nuclear Deformation of Cells on a Micropillar Array. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:7469-7477. [PMID: 30226387 DOI: 10.1021/acs.langmuir.8b02510] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
While various cellular responses to materials have been published, little concerns the deformation of cell nuclei. Herein we fabricated a polymeric micropillar array of appropriate dimensions to trigger the significant self-deformation of cell nuclei and examined six cell types, which could be classified into cancerous cells (Hela and HepG2) versus healthy cells (HCvEpC, MC3T3-E1, NIH3T3, and hMSC) or epithelial-like cells (Hela, HepG2, and HCvEpC) versus fibroblast-like cells (MC3T3-E1, NIH3T3, and hMSC). While all of the cell types exhibited severe nuclear deformation on the poly(lactide- co-glycolide) (PLGA) micropillar array, the difference between the epithelial-like and fibroblast-like cells was much more significant than that between the cancerous and healthy cells. We also examined the statistics of nuclear shape indexes of cells with an inevitable dispersity of nuclear sizes. It was found that larger nuclei favored more significant deformation on the micropillar array for each cell type. In the same region of nuclear size, the parts of the epithelial-like cells exhibited more significant nuclear deformation than those of the fibroblast-like cells. Hence, this article reports the nuclear size dependence of the self-deformation of cell nuclei on micropillar arrays for the first time and meanwhile strengthens the cell-type dependence.
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Affiliation(s)
- Ruili Liu
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science , Fudan University , Shanghai 200438 , China
| | - Qiong Liu
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science , Fudan University , Shanghai 200438 , China
| | - Zhen Pan
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science , Fudan University , Shanghai 200438 , China
| | - Xiangnan Liu
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science , Fudan University , Shanghai 200438 , China
| | - Jiandong Ding
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science , Fudan University , Shanghai 200438 , China
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44
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Bu Y, Ma J, Bei J, Wang S. Surface Modification of Aliphatic Polyester to Enhance Biocompatibility. Front Bioeng Biotechnol 2019; 7:98. [PMID: 31131273 PMCID: PMC6509149 DOI: 10.3389/fbioe.2019.00098] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2019] [Accepted: 04/16/2019] [Indexed: 11/16/2022] Open
Abstract
Aliphatic polyester is a kind of biodegradable implantable polymers, which shows promise as scaffolds in tissue engineering, drug carrier, medical device, and so on. To further improve its biocompatibility and cell affinity, many techniques have been used to modify the surface of the polyester. In the present paper, the key factors of influencing biocompatibility of aliphatic polyester were illuminated, and the different surface modification methods such as physical, chemical, and plasma processing methods were also demonstrated. The advantages and disadvantages of each method were also discussed with the hope that this review can serve as a resource for selection of surface modification of aliphatic products.
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Affiliation(s)
- Yazhong Bu
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Polymer Physics and Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, China
| | - Junxuan Ma
- Orthopedic Research Institute, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Orthopedics and Traumatology, Guangzhou, China
| | - Jianzhong Bei
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Polymer Physics and Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, China
| | - Shenguo Wang
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Polymer Physics and Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, China
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45
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Liu R, Yao X, Liu X, Ding J. Proliferation of Cells with Severe Nuclear Deformation on a Micropillar Array. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:284-299. [PMID: 30513205 DOI: 10.1021/acs.langmuir.8b03452] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Cellular responses on a topographic surface are fundamental topics about interfaces and biology. Herein, a poly(lactide- co-glycolide) (PLGA) micropillar array was prepared and found to trigger significant self-deformation of cell nuclei. The time-dependent cell viability and thus cell proliferation was investigated. Despite significant nuclear deformation, all of the examined cell types (Hela, HepG2, MC3T3-E1, and NIH3T3) could survive and proliferate on the micropillar array yet exhibited different proliferation abilities. Compared to the corresponding groups on the smooth surface, the cell proliferation abilities on the micropillar array were decreased for Hela and MC3T3-E1 cells and did not change significantly for HepG2 and NIH3T3 cells. We also found that whether the proliferation ability changed was related to whether the nuclear sizes decreased in the micropillar array, and thus the size deformation of cell nuclei should, besides shape deformation, be taken into consideration in studies of cells on topological surfaces.
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Affiliation(s)
- Ruili Liu
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science , Fudan University , Shanghai 200438 , China
| | - Xiang Yao
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science , Fudan University , Shanghai 200438 , China
| | - Xiangnan Liu
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science , Fudan University , Shanghai 200438 , China
| | - Jiandong Ding
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science , Fudan University , Shanghai 200438 , China
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Zhang K, Fang H, Qin Y, Zhang L, Yin J. Functionalized Scaffold for in Situ Efficient Gene Transfection of Mesenchymal Stem Cells Spheroids toward Chondrogenesis. ACS APPLIED MATERIALS & INTERFACES 2018; 10:33993-34004. [PMID: 30207161 DOI: 10.1021/acsami.8b12268] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Multicellular mesenchymal stem cell (MSC) spheroids possess enhanced chondrogenesis ability and limited fibrosis, exhibiting advantage toward hyaline-like cartilage regeneration. However, because of the limited cell surfaces in spheroid exposed to DNA/vector, it is difficult to realize efficient gene transfection, most of which highly rely on cell-substrate interaction. Here, we report a poly(l-glutamic acid)-based porous scaffold with tunable inner surfaces that can sequentially realize cell-scaffold attachment and detachment, as well as the followed in situ spheroid formation. The attachment and detachment of cells from scaffold is achieved by the capture and release of fibronectin (Fn) via reversible imine linkage between aromatic aldehyde groups of scaffold and amino groups of Fn. Together with N, N, N-trimethyl chitosan chloride condensing plasmid DNA encoding transforming growth factor-β1 (pDNA-TGF-β1), cell attachment realizes efficient surface-mediated gene transfection. Conversion of scaffold stiffness can affect the adhesion shape of cells. Stiffer scaffold reinforces the adhesion, leading to the amplification of peripheral focal adhesions and the promotion of cell spreading, as well as the promotion of gene transfection efficiency. After cellular detachment from the scaffold via lysine treatment, the subsequent spheroid formation with extensive cell-cell interaction up-regulates the corresponding protein expression with a prolonged term. With the induction effect of the expressed TGF-β1, significantly enhanced chondrogenesis of MSCs in spheroids is achieved at 10 d in vitro. Well-regenerated cartilage at 8 weeks in vivo indicates that the present gene transfection system is a platform that can be potentially applied toward cartilage tissue engineering.
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Affiliation(s)
- Kunxi Zhang
- Department of Polymer Materials, School of Materials Science and Engineering , Shanghai University , 99 Shangda Road , Shanghai 200444 , PR China
| | - Haowei Fang
- Department of Polymer Materials, School of Materials Science and Engineering , Shanghai University , 99 Shangda Road , Shanghai 200444 , PR China
| | - Yechi Qin
- Department of Polymer Materials, School of Materials Science and Engineering , Shanghai University , 99 Shangda Road , Shanghai 200444 , PR China
| | - Lili Zhang
- Department of Polymer Materials, School of Materials Science and Engineering , Shanghai University , 99 Shangda Road , Shanghai 200444 , PR China
| | - Jingbo Yin
- Department of Polymer Materials, School of Materials Science and Engineering , Shanghai University , 99 Shangda Road , Shanghai 200444 , PR China
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Imaninezhad M, Schober J, Griggs D, Ruminski P, Kuljanishvili I, Zustiak SP. Cell Attachment and Spreading on Carbon Nanotubes Is Facilitated by Integrin Binding. Front Bioeng Biotechnol 2018; 6:129. [PMID: 30320079 PMCID: PMC6165858 DOI: 10.3389/fbioe.2018.00129] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2018] [Accepted: 08/30/2018] [Indexed: 01/21/2023] Open
Abstract
Owing to their exceptional physical, chemical, and mechanical properties, carbon nanotubes (CNTs) have been extensively studied for their effect on cellular behaviors. However, little is known about the process by which cells attach and spread on CNTs and the process for cell attachment and spreading on individual single-walled CNTs has not been studied. Cell adhesion and spreading is essential for cell communication and regulation and the mechanical interaction between cells and the underlying substrate can influence and control cell behavior and function. A limited number of studies have described different adhesion mechanisms, such as cellular process entanglements with multi-walled CNT aggregates or adhesion due to adsorption of serum proteins onto the nanotubes. Here, we hypothesized that cell attachment and spreading to both individual single-walled CNTs and multi-walled CNT aggregates is governed by the same mechanism. Specifically, we suggest that cell attachment and spreading on nanotubes is integrin-dependent and is facilitated by the adsorption of serum and cell-secreted adhesive proteins to the nanotubes.
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Affiliation(s)
- Mozhdeh Imaninezhad
- Biomedical Engineering, Saint Louis University, Saint Louis, MO, United States
| | - Joseph Schober
- Pharmaceutical Sciences, Southern Illinois University, Edwardsville, IL, United States
| | - David Griggs
- Molecular Microbiology & Immunology, Saint Louis University, Saint Louis, MO, United States
| | - Peter Ruminski
- Center for World Health and Medicine, Saint Louis University, Saint Louis, MO, United States
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Modeling of inhomogeneous electromagnetic fields in the nervous system: a novel paradigm in understanding cell interactions, disease etiology and therapy. Sci Rep 2018; 8:12909. [PMID: 30150694 PMCID: PMC6110729 DOI: 10.1038/s41598-018-31054-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2018] [Accepted: 08/10/2018] [Indexed: 12/23/2022] Open
Abstract
All major processes in the nervous system depend on interactions between cells and nerve fibers. In this work we present a novel model of inhomogeneous electromagnetic fields originating from nerve fibers and delineate their influence on cells. By expanding Hodgkin-Huxley's applied current into axial current, governed by[Formula: see text], we reveal that cell-with-neuron interactions are regulated by the strength of the electromagnetic fields, which are homogeneous up to 2.066 μm or 6.606 μm away from neurilemma and axolemma, respectively. At the nodes of Ranvier, these fields reach strengths of 3.0 × 10-12T, while at the myelinated segments they only peak at 2.3 × 10-12T. These are the same fields which are, due to inhomogeneity, detected as 1,000 times weaker by magnetoencephalography. Considering the widespread occurrence of neurodegenerative disorders, our model reveals that a 50% demyelination increases the field strength by 0.35 × 10-12T, while a complete demyelination increases it by 0.7 × 10-12T. Since this suggests that the inhomogeneous electromagnetic fields around neurons play a role in physiological and pathological processes, including cell-to-neuron and cell-to-cell communication, their improved understanding opens up new therapeutic strategies based on electromagnetic field modulation or cell's surface charge alteration.
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