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Biomaterials for Stem Cell Therapy for Cardiac Disease. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2018. [PMID: 30471033 DOI: 10.1007/978-981-13-0445-3_11] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register]
Abstract
Myocardial Infarction (MI) in cardiac disease is the result of heart muscle losses due to a wide range of factors. Cardiac muscle failure is a crucial condition that provokes life-threatening outcomes. Heretofore, regeneration therapies in MI have used stem-cell-based therapy instantly after a myocardial injury to prevent the disease process and tissue malfunction. Despite the therapeutic utility of stem-cell-based regenerative therapy, barriers to successful treatment have been addressed. In this chapter, we illustrate a variety of emerging biomaterial strategies for enhancing the function of therapeutic stem cells, such as cell surface modification to synthetically endowing stem cells with new characteristics and hydrogels with its biological and mechanical properties. These investments offer a potential accompaniment to traditional stem-cell-based therapies for enhancing the efficacy of stem cell therapy to design properly activating cardiac tissues.
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Effect of herbal mixture composed of Alchemilla vulgaris and Mimosa on wound healing process. Biomed Pharmacother 2018; 106:326-332. [PMID: 29966977 DOI: 10.1016/j.biopha.2018.06.141] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2018] [Revised: 06/20/2018] [Accepted: 06/25/2018] [Indexed: 01/16/2023] Open
Abstract
Alchemilla vulgaris and Mimosa tenuiflora (Mimosa) have been used to treat cutaneous wounds as a traditional remedy due to their various biological activities. But, there are only a few studies about the effects of these herbs on wound healing. The purpose of this study is to investigate the wound healing effect of the herbal mixture, consisting of A. vulgaris and Mimosa, in mice and to determine the activity of the extract in vitro. In present study, application of an ointment containing the herbal mixture on the dorsal skin wounds of mice showed that the wound healing process was faster than treatment of Fusidic acid. Histological analysis demonstrated the herbal mixture promoted re-epithelialization, collagen synthesis, and especially the regeneration of skin appendages such as hair follicles. Immunohistochemical analysis revealed the herbal mixture improved angiogenesis and the stabilization of blood vessels, as well as accelerated the formation of granulation tissue. In addition, we demonstrated that herbal mixture enhanced the migration of HaCaT, fibroblasts, and HUVECs on a two-dimensional wound, and promoted the proliferation of macrophages and lymphatic vessels. Our results demonstrated that herbal mixture can promote the migration of keratinocytes, fibroblasts, and endothelial cells, and the proliferation of macrophages and lymphatic vessels. Furthermore, it showed that herbal mixture accelerates wound healing. Therefore, we suggest that herbal mixture may have a potential for therapeutic use for treatment and management of cutaneous wound.
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Chamundeswari VN, Chuah YJ, Loo SCJ. Multidrug-eluting bi-layered microparticle-mesh scaffolds for musculoskeletal tissue regeneration. J Mater Chem B 2018; 6:3340-3347. [PMID: 32254391 DOI: 10.1039/c8tb00397a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Stem cell-based tissue engineering necessitates the development of a biocompatible scaffold, as a structural support, that provides a continuous supply of bioactive molecules for specific lineage differentiation. While incorporating bioactive molecules within a scaffold to improve stem cell differentiation has been reported in the literature, there is minimal evidence of any scaffold that can deliver a customized concoction of both hydrophobic and hydrophilic bioactive molecules to induce in situ lineage differentiation without any external supplements. In this study, we established a bioactive, drug-eluting bi-layered microparticle-mesh scaffold (BMMS) using the electrospinning technique. This BMMS was co-encapsulated with hydrophobic dexamethasone (in the mesh), hydrophilic ascorbic acid and β-glycerophosphate or proline (in the microparticles). We hypothesized that a sustained-releasing BMMS can direct in situ specific lineage differentiation of MSCs (e.g. osteogenic and chondrogenic) in a minimally supplemented culture environment into musculoskeletal tissues. The characterization of this BMMS revealed good encapsulation efficiencies of the bioactive molecules with sustained-releasing capabilities. The release kinetics of each drug was further analyzed using mathematical drug-releasing models. These scaffolds were subsequently shown to have potential for osteogenic or chondrogenic lineage differentiation from mesenchymal stem cells (MSCs) in a minimally supplemented culture medium.
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Affiliation(s)
- Vidya N Chamundeswari
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore.
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LoPresti ST, Brown BN. Effect of Source Animal Age upon Macrophage Response to Extracellular Matrix Biomaterials. ACTA ACUST UNITED AC 2018; 1:57-66. [PMID: 30101208 DOI: 10.1016/j.regen.2018.03.004] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Extracellular matrix biomaterials have been shown to promote constructive remodeling in many preclinical and clinical applications. This response has been associated with the promotion of a timely switch from pro-inflammatory (M1) to anti-inflammatory (M2) macrophages. A previous study has shown that this beneficial response is lost when these biomaterials are derived from aged animals. This study examined the impact of small intestine submucosa (SIS) derived from 12, 26 and 52 week old pigs on the phenotype and function of bone marrow macrophages derived either from 2 or 18 month old mice. Results showed that 52 week old SIS promoted less iNOS in 2 month macrophages and Fizz1 expression in 2 and 18 month compared to 12 week SIS. Pro-inflammatory cytokine exposure to 52 week SIS-treated macrophages resulted in higher iNOS in 18 month macrophages and reduced MHC-II expression in 2 month macrophages, as well as reduced nitric oxide production in comparison to 12 week SIS. These results indicate that ECM derived from aged animals promotes an altered macrophage phenotype compared to young controls. This suggests that sourcing of ECM from young donors is important to preserve constructive remodeling outcomes of ECM biomaterials. Alteration of macrophage phenotype by aged ECM also raises the hypothesis that alterations in aged ECM may play a role in immune dysfunction in aged individuals.
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Affiliation(s)
- Samuel T LoPresti
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, 450 Technology Drive, Pittsburgh, PA 15219, United States.,Department of Bioengineering, Swanson School of Engineering, University of Pittsburgh, 3700 O'Hara Street, Pittsburgh, PA 15260, United States
| | - Bryan N Brown
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, 450 Technology Drive, Pittsburgh, PA 15219, United States.,Department of Bioengineering, Swanson School of Engineering, University of Pittsburgh, 3700 O'Hara Street, Pittsburgh, PA 15260, United States.,Department of Obstetrics, Gynecology and Reproductive Sciences, University of Pittsburgh School of Medicine, University of Pittsburgh, 300 Halket Street, Pittsburgh, PA 15213, United States
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Ellijimi C, Ben Hammouda M, Othman H, Moslah W, Jebali J, Mabrouk HB, Morjen M, Haoues M, Luis J, Marrakchi N, Essafi-Benkhadir K, Srairi-Abid N. Helix aspersa maxima mucus exhibits antimelanogenic and antitumoral effects against melanoma cells. Biomed Pharmacother 2018; 101:871-880. [PMID: 29635896 DOI: 10.1016/j.biopha.2018.03.020] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2017] [Revised: 03/05/2018] [Accepted: 03/05/2018] [Indexed: 01/10/2023] Open
Abstract
Snail secretion is currently revolutionizing the world of cosmetics and human skin care. The efficacy of snail secretion in wounds healing has been proven both in vitro and by clinical studies. However, the potential anti-tumor effect of snail secretion was poorly investigated. In this report, our in vitro study showed that Helix aspersa maxima species snail slime (SS) could not only treat melanogenesis but also endowed with anti-tumoral activity against human melanoma cells. Indeed, SS reduced melanin content and tyrosinase activity on B16F10 cells with IC50 values of 288 μg/mL and 286 μg/mL, respectively, without altering cell viability. This effect was also observed, at a lesser extent, on human melanoma IGR-39 and SK-MEL-28 cell lines. On another hand, SS specifically inhibited the viability of IGR-39 and SK-MEL-28 cells associated to an apoptotic effect highlighted by PARP cleavage. It is worth to note that SS did not affect the viability of B16F10 cells and non tumorigenic HaCaT cells. Interestingly, this extract was found to inhibit migration and invasion of both human melanoma cells through reducing the expression of Matrix metalloproteinase MMP2. Snail slime also exerted a high inhibitory effect on IGR-39 cell adhesion through blocking the function of α2β1 (45%), αvβ3 (38%) integrins and by reducing the expression levels of αv and β1 integrins. The presented results shed light on the potential anti-melanoma effect of SS and support its use against skin diseases.
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Affiliation(s)
- Chedli Ellijimi
- Université de Tunis El Manar, Institut Pasteur de Tunis, Laboratoire des Venins et biomolécules thérapeutiques LR11IPT08/ LR16IPT08, Tunis, 1002, Tunisia
| | - Manel Ben Hammouda
- Université de Tunis El Manar, Institut Pasteur de Tunis, Laboratoire d'Epidémiologie Moléculaire et Pathologie Expérimentale appliquée aux Maladies infectieuses LR11IPT04/LR16IPT04, Tunis, 1002, Tunisia
| | - Houcemeddine Othman
- Université de Tunis El Manar, Institut Pasteur de Tunis, Laboratoire des Venins et biomolécules thérapeutiques LR11IPT08/ LR16IPT08, Tunis, 1002, Tunisia
| | - Wassim Moslah
- Université de Tunis El Manar, Institut Pasteur de Tunis, Laboratoire des Venins et biomolécules thérapeutiques LR11IPT08/ LR16IPT08, Tunis, 1002, Tunisia
| | - Jed Jebali
- Université de Tunis El Manar, Institut Pasteur de Tunis, Laboratoire des Venins et biomolécules thérapeutiques LR11IPT08/ LR16IPT08, Tunis, 1002, Tunisia
| | - Hazem Ben Mabrouk
- Université de Tunis El Manar, Institut Pasteur de Tunis, Laboratoire des Venins et biomolécules thérapeutiques LR11IPT08/ LR16IPT08, Tunis, 1002, Tunisia
| | - Maram Morjen
- Université de Tunis El Manar, Institut Pasteur de Tunis, Laboratoire des Venins et biomolécules thérapeutiques LR11IPT08/ LR16IPT08, Tunis, 1002, Tunisia
| | - Meriam Haoues
- Université de Tunis El Manar, Institut Pasteur de Tunis, Laboratoire de Recherche sur la Transmission, le Contrôle et l'Immunobiologie des Infections, LR11IPT02/ LR16IPT02 LTCII, Tunis, 1002, Tunisia
| | - José Luis
- INSERM UMR 911-Centre de Recherche en Oncologie Biologique et Oncopharmacologie (CRO2), Aix-Marseille Université, 27 Bd Jean Moulin, 13385, Marseille Cedex 5, France
| | - Naziha Marrakchi
- Université de Tunis El Manar, Institut Pasteur de Tunis, Laboratoire des Venins et biomolécules thérapeutiques LR11IPT08/ LR16IPT08, Tunis, 1002, Tunisia
| | - Khadija Essafi-Benkhadir
- Université de Tunis El Manar, Institut Pasteur de Tunis, Laboratoire d'Epidémiologie Moléculaire et Pathologie Expérimentale appliquée aux Maladies infectieuses LR11IPT04/LR16IPT04, Tunis, 1002, Tunisia
| | - Najet Srairi-Abid
- Université de Tunis El Manar, Institut Pasteur de Tunis, Laboratoire des Venins et biomolécules thérapeutiques LR11IPT08/ LR16IPT08, Tunis, 1002, Tunisia.
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Comparison of Six Different Silicones In Vitro for Application as Glaucoma Drainage Device. MATERIALS 2018; 11:ma11030341. [PMID: 29495462 PMCID: PMC5872920 DOI: 10.3390/ma11030341] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/15/2017] [Revised: 01/30/2018] [Accepted: 02/24/2018] [Indexed: 12/28/2022]
Abstract
Silicones are widely used in medical applications. In ophthalmology, glaucoma drainage devices are utilized if conservative therapies are not applicable or have failed. Long-term success of these devices is limited by failure to control intraocular pressure due to fibrous encapsulation. Therefore, different medical approved silicones were tested in vitro for cell adhesion, cell proliferation and viability of human Sclera (hSF) and human Tenon fibroblasts (hTF). The silicones were analysed also depending on the sample preparation according to the manufacturer's instructions. The surface quality was characterized with environmental scanning electron microscope (ESEM) and water contact angle measurements. All silicones showed homogeneous smooth and hydrophobic surfaces. Cell adhesion was significantly reduced on all silicones compared to the negative control. Proliferation index and cell viability were not influenced much. For development of a new glaucoma drainage device, the silicones Silbione LSR 4330 and Silbione LSR 4350, in this study, with low cell counts for hTF and low proliferation indices for hSF, and silicone Silastic MDX4-4210, with low cell counts for hSF and low proliferation indices for hTF, have shown the best results in vitro. Due to the high cell adhesion shown on Silicone LSR 40, 40,026, this material is unsuitable.
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Yang X, Lu Z, Wu H, Li W, Zheng L, Zhao J. Collagen-alginate as bioink for three-dimensional (3D) cell printing based cartilage tissue engineering. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 83:195-201. [DOI: 10.1016/j.msec.2017.09.002] [Citation(s) in RCA: 218] [Impact Index Per Article: 36.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2017] [Revised: 09/09/2017] [Accepted: 09/20/2017] [Indexed: 12/31/2022]
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Mechanotransduction of human pluripotent stem cells cultivated on tunable cell-derived extracellular matrix. Biomaterials 2018; 150:100-111. [DOI: 10.1016/j.biomaterials.2017.10.016] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2017] [Accepted: 10/07/2017] [Indexed: 12/18/2022]
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Chamundeswari VN, Yuan Siang L, Jin Chuah Y, Shi Tan J, Wang DA, Loo SCJ. Sustained releasing sponge-like 3D scaffolds for bone tissue engineering applications. Biomed Mater 2017; 13:015019. [DOI: 10.1088/1748-605x/aa8bcd] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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Hashimoto K, Kawashima N, Ichinose S, Nara K, Noda S, Okiji T. EDTA Treatment for Sodium Hypochlorite-treated Dentin Recovers Disturbed Attachment and Induces Differentiation of Mouse Dental Papilla Cells. J Endod 2017; 44:256-262. [PMID: 29275854 DOI: 10.1016/j.joen.2017.11.003] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2017] [Revised: 10/08/2017] [Accepted: 11/05/2017] [Indexed: 12/31/2022]
Abstract
INTRODUCTION The disturbance of cellular attachment to dentin by sodium hypochlorite (NaOCl) may hamper pulp tissue regeneration. The aims of this study were to examine the recovering effect of EDTA on the attachment/differentiation of stemlike cells and to address the mechanisms of EDTA-induced recovery under the hypothesis that attachment to the exposed dentin matrix and the subsequent activation of integrin/phosphatidylinositol 3-kinase (PI3K) signaling play a crucial role. METHODS Mouse dental papilla (MDP) cells were cultured on bovine dentin disks treated with NaOCl (0%, 1.5%, or 6%) followed by EDTA (0%, 3%, or 17%). Cell attachment was evaluated by cell density, viability, and scanning and transmission electron microscopy. Odonto-/osteoblastic gene expression in attached MDP cells was analyzed with or without a pan-PI3K inhibitor (LY294002) using real-time polymerase chain reaction. RESULTS NaOCl treatment (1.5%, 10 minutes) significantly diminished attached MDP cells (P < .00001), but EDTA treatment (3% and 17%, ≥10 minutes) of NaOCl-pretreated dentin induced a significant increase in attached cells (P < .05). Ultrastructurally, MDP cells on EDTA-treated dentin showed attachment to exposed collagen fibers. MDP cells cultured on EDTA-treated disks (with or without 1.5% NaOCl pretreatment) showed significant up-regulation of alkaline phosphatase, dentin matrix protein 1, and dentin sialophosphoprotein messenger RNAs (P < .05). Alkaline phosphatase expression was down-regulated by LY294002 (P < .05). CONCLUSIONS Under the present experimental conditions, 10 minutes of EDTA treatment was sufficient to recover attachment/differentiation of MDP cells on 1.5% NaOCl-pretreated dentin. EDTA-induced exposure of collagen fibers and subsequent activation of integrin/PI3K signaling may contribute, at least partly, to the recovery.
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Affiliation(s)
- Kentaro Hashimoto
- Department of Pulp Biology and Endodontics, Division of Oral Health Sciences, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Nobuyuki Kawashima
- Department of Pulp Biology and Endodontics, Division of Oral Health Sciences, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan.
| | - Shizuko Ichinose
- Research Center for Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Keisuke Nara
- Department of Pulp Biology and Endodontics, Division of Oral Health Sciences, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Sonoko Noda
- Department of Pulp Biology and Endodontics, Division of Oral Health Sciences, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Takashi Okiji
- Department of Pulp Biology and Endodontics, Division of Oral Health Sciences, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
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Decellularized matrix of adipose-derived mesenchymal stromal cells enhanced retinal progenitor cell proliferation via the Akt/Erk pathway and neuronal differentiation. Cytotherapy 2017; 20:74-86. [PMID: 29050915 DOI: 10.1016/j.jcyt.2017.08.019] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2016] [Revised: 08/14/2017] [Accepted: 08/21/2017] [Indexed: 01/12/2023]
Abstract
BACKGROUND AIMS Retinal progenitor cells (RPCs) are a promising cell therapy treatment for retinal degenerative diseases. However, problems with limited proliferation ability and differentiation preference toward glia rather than neurons restrict the clinical application of these RPCs. The extracellular matrix (ECM) has been recognized to provide an appropriate microenvironment to support stem cell adhesion and direct cell behaviors, such as self-renewal and differentiation. METHODS In this study, decellularized matrix of adipose-derived mesenchymal stromal cells (DMA) was manufactured using a chemical agent method (0.5% ammonium hydroxide Triton + 20 mmol/L NH4OH) in combination with a biological agent method (DNase solution), and the resulting DMA were evaluated by scanning electron microscopy (SEM) and immunocytochemistry. The effect of DMA on RPC proliferation and differentiation was evaluated by quantitative polymerase chain reaction, Western blot and immunocytochemistry analysis. RESULTS DMA was successfully fabricated, as demonstrated by SEM and immunocytochemistry. Compared with tissue culture plates, DMA may effectively enhance the proliferation of RPCs by activating Akt and Erk phosphorylation; when the two pathways were blocked, the promoting effect was reversed. Moreover, DMA promoted the differentiation of RPCs toward retinal neurons, especially rhodopsin- and recoverin-positive photoreceptors, which is the most interesting class of cells for retinal degeneration treatment. CONCLUSIONS These results indicate that DMA has important roles in governing RPC proliferation and differentiation and may contribute to the application of RPCs in treating retinal degenerative diseases.
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Myer NM, Myers KA. CLASP1 regulates endothelial cell branching morphology and directed migration. Biol Open 2017; 6:1502-1515. [PMID: 28860131 PMCID: PMC5665473 DOI: 10.1242/bio.028571] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Endothelial cell (EC) branching is critically dependent upon the dynamic nature of the microtubule (MT) cytoskeleton. Extracellular matrix (ECM) mechanosensing is a prominent mechanism by which cytoskeletal reorganization is achieved; yet how ECM-induced signaling is able to target cytoskeletal reorganization intracellularly to facilitate productive EC branching morphogenesis is not known. Here, we tested the hypothesis that the composition and density of the ECM drive the regulation of MT growth dynamics in ECs by targeting the MT stabilizing protein, cytoplasmic linker associated protein 1 (CLASP1). High-resolution fluorescent microscopy coupled with computational image analysis reveal that CLASP1 promotes slow MT growth on glass ECMs and promotes short-lived MT growth on high-density collagen-I and fibronectin ECMs. Within EC branches, engagement of either high-density collagen-I or high-density fibronectin ECMs results in reduced MT growth speeds, while CLASP1-dependent effects on MT dynamics promotes elevated numbers of short, branched protrusions that guide persistent and directed EC migration. Summary: CLASP1 modulates microtubule dynamics with sub-cellular specificity in response to extracellular matrix density and composition. CLASP1 effects on microtubules promote short, branched protrusions that guide persistent and directional EC migration. This article has an associated First Person interview with the first author of the paper as part of the supplementary information.
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Affiliation(s)
- Nicole M Myer
- Department of Biological Sciences, University of the Sciences in Philadelphia, Philadelphia PA 19104, USA
| | - Kenneth A Myers
- Department of Biological Sciences, University of the Sciences in Philadelphia, Philadelphia PA 19104, USA
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von Byern J, Mebs D, Heiss E, Dicke U, Wetjen O, Bakkegard K, Grunwald I, Wolbank S, Mühleder S, Gugerell A, Fuchs H, Nürnberger S. Salamanders on the bench – A biocompatibility study of salamander skin secretions in cell cultures. Toxicon 2017; 135:24-32. [DOI: 10.1016/j.toxicon.2017.05.021] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2017] [Revised: 05/22/2017] [Accepted: 05/23/2017] [Indexed: 11/28/2022]
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Alom N, Peto H, Kirkham GR, Shakesheff KM, White LJ. Bone extracellular matrix hydrogel enhances osteogenic differentiation of C2C12 myoblasts and mouse primary calvarial cells. J Biomed Mater Res B Appl Biomater 2017; 106:900-908. [PMID: 28429412 DOI: 10.1002/jbm.b.33894] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2016] [Revised: 02/01/2017] [Accepted: 03/25/2017] [Indexed: 12/20/2022]
Abstract
Hydrogel scaffolds derived from the extracellular matrix (ECM) of mammalian tissues have been successfully used to promote tissue repair in vitro and in vivo. The objective of this study was to evaluate the osteogenic potential of ECM hydrogels prepared from demineralized and decellularized bovine bone in the presence and absence of osteogenic medium. Culture of C2C12 and mouse primary calvarial cells (mPCs) on decellularized bone ECM (bECM) and demineralized bone matrix (DBM) gels resulted in increased expression of osteogenic gene markers, including a 3.6- and 13.4-fold increase in osteopontin and 15.7- and 27.1-fold increase in osteocalcin when mPCs were cultured upon bECM with basal and osteogenic media, respectively. bECM hydrogels stimulated the osteogenic differentiation of C2C12 and mPCs even in the absence of osteogenic medium. These results suggest that bECM hydrogel scaffolds may have great utility in future clinical applications for bone tissue engineering. © 2017 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 106B: 900-908, 2018.
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Affiliation(s)
- Noura Alom
- Division of Regenerative Medicine and Cellular Therapies, School of Pharmacy, University of Nottingham University Park, Nottingham, United Kingdom
| | - Heather Peto
- Division of Regenerative Medicine and Cellular Therapies, School of Pharmacy, University of Nottingham University Park, Nottingham, United Kingdom
| | - Glen R Kirkham
- Division of Regenerative Medicine and Cellular Therapies, School of Pharmacy, University of Nottingham University Park, Nottingham, United Kingdom
| | - Kevin M Shakesheff
- Division of Regenerative Medicine and Cellular Therapies, School of Pharmacy, University of Nottingham University Park, Nottingham, United Kingdom
| | - Lisa J White
- Division of Regenerative Medicine and Cellular Therapies, School of Pharmacy, University of Nottingham University Park, Nottingham, United Kingdom
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Totti S, Vernardis SI, Meira L, Pérez-Mancera PA, Costello E, Greenhalf W, Palmer D, Neoptolemos J, Mantalaris A, Velliou EG. Designing a bio-inspired biomimetic in vitro system for the optimization of ex vivo studies of pancreatic cancer. Drug Discov Today 2017; 22:690-701. [PMID: 28153670 DOI: 10.1016/j.drudis.2017.01.012] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2016] [Revised: 12/16/2016] [Accepted: 01/18/2017] [Indexed: 12/13/2022]
Abstract
Pancreatic cancer is one of the most aggressive and lethal human malignancies. Drug therapies and radiotherapy are used for treatment as adjuvants to surgery, but outcomes remain disappointing. Advances in tissue engineering suggest that 3D cultures can reflect the in vivo tumor microenvironment and can guarantee a physiological distribution of oxygen, nutrients, and drugs, making them promising low-cost tools for therapy development. Here, we review crucial structural and environmental elements that should be considered for an accurate design of an ex vivo platform for studies of pancreatic cancer. Furthermore, we propose environmental stress response biomarkers as platform readouts for the efficient control and further prediction of the pancreatic cancer response to the environmental and treatment input.
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Affiliation(s)
- Stella Totti
- Bioprocess and Biochemical Engineering Group (BioProChem), Department of Chemical and Process Engineering, University of Surrey, Guildford GU2 7XH, UK
| | - Spyros I Vernardis
- Biological Systems Engineering Laboratory (BSEL), Department of Chemical Engineering, Imperial College London, SW7 2AZ London, UK
| | - Lisiane Meira
- Department of Clinical and Experimental Medicine, University of Surrey, Guildford GU2 7XH, UK
| | - Pedro A Pérez-Mancera
- Department of Molecular and Clinical Cancer Medicine, University of Liverpool,Daulby Street, Liverpool L69 3GA, UK
| | - Eithne Costello
- Department of Molecular and Clinical Cancer Medicine, University of Liverpool,Daulby Street, Liverpool L69 3GA, UK; NIHR Liverpool Pancreas Biomedical Research Unit, University of Liverpool,Daulby Street, Liverpool L69 3GA, UK
| | - William Greenhalf
- NIHR Liverpool Pancreas Biomedical Research Unit, University of Liverpool,Daulby Street, Liverpool L69 3GA, UK
| | - Daniel Palmer
- Department of Molecular and Clinical Cancer Medicine, University of Liverpool,Daulby Street, Liverpool L69 3GA, UK
| | - John Neoptolemos
- Department of Molecular and Clinical Cancer Medicine, University of Liverpool,Daulby Street, Liverpool L69 3GA, UK; NIHR Liverpool Pancreas Biomedical Research Unit, University of Liverpool,Daulby Street, Liverpool L69 3GA, UK
| | - Athanasios Mantalaris
- Biological Systems Engineering Laboratory (BSEL), Department of Chemical Engineering, Imperial College London, SW7 2AZ London, UK
| | - Eirini G Velliou
- Bioprocess and Biochemical Engineering Group (BioProChem), Department of Chemical and Process Engineering, University of Surrey, Guildford GU2 7XH, UK.
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Identifying connexin expression and determining gap junction intercellular communication in rainbow trout cells. In Vitro Cell Dev Biol Anim 2017; 53:406-416. [PMID: 28342022 DOI: 10.1007/s11626-017-0138-1] [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: 09/13/2016] [Accepted: 01/27/2017] [Indexed: 10/19/2022]
Abstract
Gap junctions are groups of membrane-bound channels that allow the passage of small molecules and ions between cells, permitting cell-cell communication. Because of their importance in cell homeostasis, gap junction presence and function were characterized in three commonly studied rainbow trout cell lines, namely RTgill-W1, RTgutGC, and RTG-2. Firstly, gap junction presence was determined by screening for gap junction protein alpha 7 and alpha 1 (GJA7 and GJA1) presence at the transcript level and GJA7 at the protein level. GJA7 was successfully identified at both the transcript and protein levels, and GJA1 was detected at the transcript level in all three cell lines. This is the first report of a GJA7 full-length transcript sequence in rainbow trout cells. Gap junction function, as determined by gap junction intercellular communication (GJIC), was examined using Lucifer yellow dye migration with the scrape and load technique; visualized by fluorescence microscopy. Phorbol 12-myristate 13-acetate (PMA), a gap junction inhibitor, was used to confirm the presence of functional gap junctions. Effects of serum deprivation on GJIC were also monitored; 24-h serum deprivation resulted in greater dye migration compared with 30-min serum deprivation. Both RTG-2 and RTgill-W1 showed significant dye migration that was inhibited by PMA while RTgutGC did not. Human foreskin fibroblast (HFF-1) cells were used as a positive control for gap junction presence and function. Taken together, our study shows that rainbow trout cells express connexin transcripts and proteins, and RTG-2 and, to a lesser extent, RTgill-W1 cells are able to perform GJIC.
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Zhijiang C, Qin Z, Xianyou S, Yuanpei L. Zein/Poly(3-hydroxybutyrate-co-4-hydroxybutyrate) electrospun blend fiber scaffolds: Preparation, characterization and cytocompatibility. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 71:797-806. [PMID: 27987775 DOI: 10.1016/j.msec.2016.10.053] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2016] [Revised: 07/23/2016] [Accepted: 10/24/2016] [Indexed: 12/11/2022]
Abstract
In the present work, a series of Zein/Poly(3-hydroxybutyrate-co-4-hydroxybutyrate) blend fiber scaffolds have been prepared by electrospinning method. The electrospun fibers showed a circular and uniform morphology with random distribution. The blend fiber scaffolds possessed well interconnected porous fibrous network structure with high porosity and large aspect surface areas. The FTIR and XPS spectra of Zein/P(3HB-co-4HB) blend fibers demonstrated the same characteristics to that of pure Zein and P(3HB-co-4HB) electrospun fibers. However, Zein might hinder the crystallization of P(3HB-co-4HB) owing to the formation of weak intermolecular interactions, which can affect the preferential orientation of P(3HB-co-4HB) molecules. Only one glass transition temperature (Tg) can be detected for electrospun Zein/P(3HB-co-4HB) blend fiber scaffolds implying the miscibility of Zein and P(3HB-co-4HB) in the blend fibers. The Zein/P(3HB-co-4HB) blend fiber scaffolds showed about 50% of improvement in tensile strength and 400% of increase in elongation at break by increasing P(3HB-co-4HB) content from 20% to 80%. The cytocompatibility of the Zein/P(3HB-co-4HB) blend fiber scaffolds was preliminarily evaluated by cell culture in vitro. The as-prepared electrospun Zein/P(3HB-co-4HB) blend fiber scaffolds with the characteristics of good biocompatibility, excellent pore characteristic as well as sufficient mechanical properties should be more promising for applications as tissue engineering scaffold.
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Affiliation(s)
- Cai Zhijiang
- School of Textiles, Tianjin Polytechnic University, Tianjin 300387, China; State Key Laboratory of Hollow Fiber Membrane Material and Processes, No 399 BingShuiXi Street, Tianjin 300387, XiQing District, China.
| | - Zhang Qin
- School of Textiles, Tianjin Polytechnic University, Tianjin 300387, China
| | - Song Xianyou
- School of Textiles, Tianjin Polytechnic University, Tianjin 300387, China
| | - Liu Yuanpei
- School of Textiles, Tianjin Polytechnic University, Tianjin 300387, China
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Enhancement of neurite adhesion, alignment and elongation on conductive polypyrrole-poly(lactide acid) fibers with cell-derived extracellular matrix. Colloids Surf B Biointerfaces 2016; 149:217-225. [PMID: 27768911 DOI: 10.1016/j.colsurfb.2016.10.014] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2016] [Revised: 10/07/2016] [Accepted: 10/08/2016] [Indexed: 01/11/2023]
Abstract
Extracellular matrix (ECM) can promote peripheral nerve repair. In this study, a conductive fiber-film (CFF) with core-sheath structure and conductivity of ∼10Scm-1 was prepared by electrospinning of aligned poly(l-lactide acid) (PLLA) fibers and electrochemical deposition of polypyrole (PPy) nanoparticles. Then the multiple components of ECM, including laminin, fibronectin and collagen, were coated on the surface of CFF by culturing and lysing L929 cells to fabricate the bioactive scaffold of ECM-linked CFF (ECM-CFF). The electrical stimulation (ES) of 100mV/cm for 14days and 2h per day did not significantly decrease the conductivity of ECM-CFF. The results of PC12 cells test indicated that, cells adhesion rate, neurite-bearing cell rate and neurite alignment rate on ECM-CFF were ∼95%, ∼77%, ∼70%, respectively, significantly larger than the corresponding values on bare CFF (17%, 29% and 14%, respectively). The neurites length on ECM-CFF (∼79mm) was also larger than that on bare CFF (∼25mm). ES of 100mV/cm onto PC12 cells through ECM-CFF could significantly promote neurite extension in first 3days of the neurite growth. These results indicated that, the combination of ECM-CFF with ES could improve the nerve regeneration by encouraging neural-cell adhesion, neurite growth and extension.
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69
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Keller V, Deiwick A, Pflaum M, Schlie-Wolter S. Correlation between ECM guidance and actin polymerization on osteogenic differentiation of human adipose-derived stem cells. Exp Cell Res 2016; 347:339-49. [DOI: 10.1016/j.yexcr.2016.08.020] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2016] [Revised: 08/18/2016] [Accepted: 08/24/2016] [Indexed: 01/07/2023]
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Bautista CA, Park HJ, Mazur CM, Aaron RK, Bilgen B. Effects of Chondroitinase ABC-Mediated Proteoglycan Digestion on Decellularization and Recellularization of Articular Cartilage. PLoS One 2016; 11:e0158976. [PMID: 27391810 PMCID: PMC4938233 DOI: 10.1371/journal.pone.0158976] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2016] [Accepted: 06/24/2016] [Indexed: 11/18/2022] Open
Abstract
Articular cartilage has a limited capacity to heal itself and thus focal defects often result in the development of osteoarthritis. Current cartilage tissue engineering strategies seek to regenerate injured tissue by creating scaffolds that aim to mimic the unique structure and composition of native articular cartilage. Decellularization is a novel strategy that aims to preserve the bioactive factors and 3D biophysical environment of the native extracellular matrix while removing potentially immunogenic factors. The purpose of this study was to develop a procedure that can enable decellularization and recellularization of intact articular cartilage matrix. Full-thickness porcine articular cartilage plugs were decellularized with a series of freeze-thaw cycles and 0.1% (w/v) sodium dodecyl sulfate detergent cycles. Chondroitinase ABC (ChABC) was applied before the detergent cycles to digest glycosaminoglycans in order to enhance donor chondrocyte removal and seeded cell migration. Porcine synovium-derived mesenchymal stem cells were seeded onto the decellularized cartilage scaffolds and cultured for up to 28 days. The optimized decellularization protocol removed 94% of native DNA per sample wet weight, while collagen content and alignment were preserved. Glycosaminoglycan depletion prior to the detergent cycles increased removal of nuclear material. Seeded cells infiltrated up to 100 μm into the cartilage deep zone after 28 days in culture. ChABC treatment enhances decellularization of the relatively dense, impermeable articular cartilage by reducing glycosaminoglycan content. ChABC treatment did not appear to affect cell migration during recellularization under static, in vitro culture, highlighting the need for more dynamic seeding methods.
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Affiliation(s)
- Catherine A. Bautista
- Center for Biomedical Engineering, Brown University, Providence, Rhode Island, United States of America
| | - Hee Jun Park
- Division of Biology and Medicine, Brown University, Providence, Rhode Island, United States of America
| | - Courtney M. Mazur
- Center for Biomedical Engineering, Brown University, Providence, Rhode Island, United States of America
| | - Roy K. Aaron
- Department of Orthopaedics, Warren Alpert Brown Medical School of Brown University/Rhode Island Hospital, Providence, Rhode Island, United States of America
| | - Bahar Bilgen
- Department of Orthopaedics, Warren Alpert Brown Medical School of Brown University/Rhode Island Hospital, Providence, Rhode Island, United States of America
- Providence VA Medical Center, Providence, Rhode Island, United States of America
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71
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Fujita H, Kudo TA, Kanetaka H, Miyazaki T, Hashimoto M, Kawashita M. Adsorption of Laminin on Hydroxyapatite and Alumina and the MC3T3-E1 Cell Response. ACS Biomater Sci Eng 2016; 2:1162-1168. [DOI: 10.1021/acsbiomaterials.6b00190] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Hiroka Fujita
- Graduate
School of Biomedical Engineering, Tohoku University, Aoba-ku, Sendai 980-8579, Japan
| | - Tada-aki Kudo
- Graduate
School of Dentistry, Tohoku University, Aoba-ku, Sendai 980-8575, Japan
| | - Hiroyasu Kanetaka
- Graduate
School of Dentistry, Tohoku University, Aoba-ku, Sendai 980-8575, Japan
| | - Toshiki Miyazaki
- Graduate
School of Life Science and Systems Engineering, Kyushu Institute of Technology, Wakamatsu-ku, Kitakyushu 808-0196, Japan
| | | | - Masakazu Kawashita
- Graduate
School of Biomedical Engineering, Tohoku University, Aoba-ku, Sendai 980-8579, Japan
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Dong C, Hu X, Dinu CZ. Current status and perspectives in atomic force microscopy-based identification of cellular transformation. Int J Nanomedicine 2016; 11:2107-18. [PMID: 27274238 PMCID: PMC4876801 DOI: 10.2147/ijn.s103501] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Understanding the complex interplay between cells and their biomechanics and how the interplay is influenced by the extracellular microenvironment, as well as how the transforming potential of a tissue from a benign to a cancerous one is related to the dynamics of both the cell and its surroundings, holds promise for the development of targeted translational therapies. This review provides a comprehensive overview of atomic force microscopy-based technology and its applications for identification of cellular progression to a cancerous phenotype. The review also offers insights into the advancements that are required for the next user-controlled tool to allow for the identification of early cell transformation and thus potentially lead to improved therapeutic outcomes.
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Affiliation(s)
- Chenbo Dong
- Department of Chemical and Biomedical Engineering, West Virginia University, Morgantown, WV, USA
| | - Xiao Hu
- Department of Chemical and Biomedical Engineering, West Virginia University, Morgantown, WV, USA
| | - Cerasela Zoica Dinu
- Department of Chemical and Biomedical Engineering, West Virginia University, Morgantown, WV, USA
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Schlie-Wolter S. Osteogenic Differentiation Of Human Adipose-Derived Stem Cells (hASC): Role Of FAK and Ras-MAPK Signaling. ACTA ACUST UNITED AC 2016. [DOI: 10.15436/2471-0598.16.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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74
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Lu M, Shao D, Wang P, Chen D, Zhang Y, Li M, Zhao J, Zhou Y. Enhanced osteoblast adhesion on amino-functionalized titanium surfaces through combined plasma enhanced chemical vapor deposition (PECVD) method. RSC Adv 2016. [DOI: 10.1039/c6ra08922d] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
A combined PECVD method has been developed to introduce amino-groups onto titanium implants for the better improvement of osseointegration.
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Affiliation(s)
- Mengmeng Lu
- Jilin Province Key Laboratory of Tooth Development and Bone Remodeling
- Department of Dental Implantology
- School and Hospital of Stomatology
- Jilin University
- Changchun 130021
| | - Dan Shao
- CAS Key Laboratory of Bio-Medical Diagnostics
- Suzhou Institute of Biomedical Engineering and Technology
- Chinese Academy of Sciences
- Suzhou 215163
- China
| | - Ping Wang
- Department of Otolaryngology-Head and Neck Surgery
- First Hospital of Jilin University
- Changchun 130021
- China
| | - Danying Chen
- Shanghai Engineering Research Center of Tooth Restoration and Regeneration
- School of Somatology
- Tongji University
- Shanghai 200072
- China
| | - Yidi Zhang
- Jilin Province Key Laboratory of Tooth Development and Bone Remodeling
- Department of Dental Implantology
- School and Hospital of Stomatology
- Jilin University
- Changchun 130021
| | - Mingqiang Li
- Department of Biomedical Engineering
- Columbia University
- New York
- USA
| | - Jinghui Zhao
- Jilin Province Key Laboratory of Tooth Development and Bone Remodeling
- Department of Dental Implantology
- School and Hospital of Stomatology
- Jilin University
- Changchun 130021
| | - Yanmin Zhou
- Jilin Province Key Laboratory of Tooth Development and Bone Remodeling
- Department of Dental Implantology
- School and Hospital of Stomatology
- Jilin University
- Changchun 130021
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Abstract
BACKGROUND Idiopathic epiretinal membrane (iERM) is a fibrocellular membrane that proliferates on the inner surface of the retina at the macular area. Membrane contraction is an important sight-threatening event and is due to fibrotic remodeling. METHODS Analysis of the current literature regarding the epidemiology, clinical features, and pathogenesis of iERM and fibrotic tissue contraction. RESULTS Epidemiologic studies report a relationship between iERM prevalence, increasing age, and posterior vitreous detachment. Clinically, iERM progresses through different stages characterized by an increased thickness and wrinkling of the membrane. Pathophysiologically, iERM formation is a fibrotic process in which myofibroblast formation and the deposition of newly formed collagens play key roles. Anomalous posterior vitreous detachment may be a key event initiating the formation of iERM. The age-related accumulation of advanced glycation end products may contribute to anomalous posterior vitreous detachment formation and may also influence the mechanical properties of the iERM. CONCLUSION Remodeling of the extracellular matrix at the vitreoretinal interface by aging and fibrotic changes, plays a significant role in the pathogenesis of iERM. A better understanding of molecular mechanisms underlying this process may eventually lead to the development of effective and nonsurgical approaches to treat and prevent vitreoretinal fibrotic diseases.
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76
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Chen S, Lu X, Hu Y, Lu Q. Biomimetic honeycomb-patterned surface as the tunable cell adhesion scaffold. Biomater Sci 2015. [DOI: 10.1039/c4bm00233d] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
PS honeycomb structured surfaces were modified into both cell-philic and cell-phobic by dip-coating and casting polySBMA, respectively, which was inspired by two typically adhesive behaviours of fish skin and Parthenocissus tricuspidata.
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Affiliation(s)
- Shuangshuang Chen
- School of Chemistry and Chemical Engineering
- State Key Laboratory of Metal Matrix Composite
- Shanghai Jiao Tong University
- Shanghai 200240
- People's Republic of China
| | - Xuemin Lu
- School of Chemistry and Chemical Engineering
- State Key Laboratory of Metal Matrix Composite
- Shanghai Jiao Tong University
- Shanghai 200240
- People's Republic of China
| | - Ying Hu
- School of Chemistry and Chemical Engineering
- State Key Laboratory of Metal Matrix Composite
- Shanghai Jiao Tong University
- Shanghai 200240
- People's Republic of China
| | - Qinghua Lu
- School of Chemistry and Chemical Engineering
- State Key Laboratory of Metal Matrix Composite
- Shanghai Jiao Tong University
- Shanghai 200240
- People's Republic of China
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Podlipec R, Gorgieva S, Jurašin D, Urbančič I, Kokol V, Strancar J. Molecular mobility of scaffolds' biopolymers influences cell growth. ACS APPLIED MATERIALS & INTERFACES 2014; 6:15980-15990. [PMID: 25153341 DOI: 10.1021/am5037719] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Understanding biocompatibility of materials and scaffolds is one of the main challenges in the field of tissue engineering and regeneration. The complex nature of cell-biomaterial interaction requires extensive preclinical functionality testing by studying specific cell responses to different biomaterial properties, from morphology and mechanics to surface characteristics at the molecular level. Despite constant improvements, a more general picture of biocompatibility is still lacking and tailormade scaffolds are not yet available. The scope of our study was thus the investigation of the correlation of fibroblast cell growth on different gelatin scaffolds with their morphological, mechanical as well as surface molecular properties. The latter were thoroughly investigated via polymer molecular mobility studied by site-directed spin labeling and electron paramagnetic resonance spectroscopy (EPR) for the first time. Anisotropy of the rotational motion of the gelatin side chain mobility was identified as the most correlated quantity with cell growth in the first days after adhesion, while weaker correlations were found with scaffold viscoelasticity and no correlations with scaffold morphology. Namely, the scaffolds with highly mobile or unrestricted polymers identified with the cell growth being five times less efficient (N(cells) = 60 ± 25 mm(-2)) as compared to cell growth on the scaffolds with considerable part of polymers with the restricted rotational motion (N(cells) = 290 ± 25 mm(-2)). This suggests that molecular mobility of scaffold components could play an important role in cell response to medical devices, reflecting a new aspect of the biocompatibility concept.
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Affiliation(s)
- Rok Podlipec
- Centre of Excellence NAMASTE , Jamova cesta 39, SI-1000 Ljubljana, Slovenia
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Nangami G, Koumangoye R, Shawn Goodwin J, Sakwe AM, Marshall D, Higginbotham J, Ochieng J. Fetuin-A associates with histones intracellularly and shuttles them to exosomes to promote focal adhesion assembly resulting in rapid adhesion and spreading in breast carcinoma cells. Exp Cell Res 2014; 328:388-400. [PMID: 25194507 DOI: 10.1016/j.yexcr.2014.08.037] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2014] [Revised: 08/08/2014] [Accepted: 08/23/2014] [Indexed: 01/11/2023]
Abstract
The present analyses were undertaken to define the mechanisms by which fetuin-A modulates cellular adhesion. FLAG-tagged fetuin-A was expressed in breast carcinoma and HEK-293T cells. We demonstrated by confocal microscopy that fetuin-A co-localizes with histone H2A in the cell nucleus, forms stable complexes with histones such as H2A and H3 in solution, and shuttles histones to exosomes. The rate of cellular adhesion and spreading to either fibronectin or laminin coated wells was accelerated significantly in the presence of either endogenous fetuin-A or serum derived protein. More importantly, the formation of focal adhesion complexes on surfaces coated by laminin or fibronectin was accelerated in the presence of fetuin-A or histone coated exosomes. Cellular adhesion mediated by histone coated exosomes was abrogated by heparin and heparinase III. Heparinase III cleaves heparan sulfate from cell surface heparan sulfate proteoglycans. Lastly, the uptake of histone coated exosomes and subsequent cellular adhesion, was abrogated by heparin. Taken together, the data suggest a mechanism where fetuin-A, either endogenously synthesized or supplied extracellularly can extract histones from the nucleus or elsewhere in the cytosol/membrane and load them on cellular exosomes which then mediate adhesion by interacting with cell surface heparan sulfate proteoglycans via bound histones.
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Affiliation(s)
- Gladys Nangami
- Departments of Biochemistry and Cancer Biology, Meharry Medical College, 1005 D.B. Todd Boulevard, Nashville, TN 37208, USA
| | - Rainelli Koumangoye
- Division of Surgical Oncology and Endocrine Surgery, Vanderbilt University Medical Center, Nashville, TN 37232, USA
| | - J Shawn Goodwin
- Departments of Biochemistry and Cancer Biology, Meharry Medical College, 1005 D.B. Todd Boulevard, Nashville, TN 37208, USA
| | - Amos M Sakwe
- Departments of Biochemistry and Cancer Biology, Meharry Medical College, 1005 D.B. Todd Boulevard, Nashville, TN 37208, USA
| | - Dana Marshall
- Departments of Pathology, Anatomy and Cell Biology, Meharry Medical College, Nashville, TN 37208, USA
| | - James Higginbotham
- Department of Medicine, Vanderbilt University Medical Center, Nashville, TN 37232, USA
| | - Josiah Ochieng
- Departments of Biochemistry and Cancer Biology, Meharry Medical College, 1005 D.B. Todd Boulevard, Nashville, TN 37208, USA.
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Dutta B, Yan R, Lim SK, Tam JP, Sze SK. Quantitative profiling of chromatome dynamics reveals a novel role for HP1BP3 in hypoxia-induced oncogenesis. Mol Cell Proteomics 2014; 13:3236-49. [PMID: 25100860 DOI: 10.1074/mcp.m114.038232] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
In contrast to the intensely studied genetic and epigenetic changes that induce host cell transformation to initiate tumor development, those that promote the malignant progression of cancer remain poorly defined. As emerging evidence suggests that the hypoxic tumor microenvironment could re-model the chromatin-associated proteome (chromatome) to induce epigenetic changes and alter gene expression in cancer cells, we hypothesized that hypoxia-driven evolution of the chromatome promotes malignant changes and the development of therapy resistance in tumor cells. To test this hypothesis, we isolated chromatins from tumor cells treated with varying conditions of normoxia, hypoxia, and re-oxygenation and then partially digested them with DNase I and analyzed them for changes in euchromatin- and heterochromatin-associated proteins using an iTRAQ-based quantitative proteomic approach. We identified a total of 1446 proteins with a high level of confidence, including 819 proteins that were observed to change their chromatin association topology under hypoxic conditions. These hypoxia-sensitive proteins included key mediators of chromatin organization, transcriptional regulation, and DNA repair. Furthermore, our proteomic and functional experiments revealed a novel role for the chromatin organizer protein HP1BP3 in mediating chromatin condensation during hypoxia, leading to increased tumor cell viability, radio-resistance, chemo-resistance, and self-renewal. Taken together, our findings indicate that HP1BP3 is a key mediator of tumor progression and cancer cell acquisition of therapy-resistant traits, and thus might represent a novel therapeutic target in a range of human malignancies.
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Affiliation(s)
- Bamaprasad Dutta
- From the ‡School of Biological Sciences, Nanyang Technological University, 60 Nanyang Dr., Singapore 637551
| | - Ren Yan
- From the ‡School of Biological Sciences, Nanyang Technological University, 60 Nanyang Dr., Singapore 637551
| | - Sai Kiang Lim
- §Institute of Medical Biology, A*STAR, 8A Biomedical Grove, Immunos, Singapore 138648
| | - James P Tam
- From the ‡School of Biological Sciences, Nanyang Technological University, 60 Nanyang Dr., Singapore 637551
| | - Siu Kwan Sze
- From the ‡School of Biological Sciences, Nanyang Technological University, 60 Nanyang Dr., Singapore 637551;
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Barthes J, Özçelik H, Hindié M, Ndreu-Halili A, Hasan A, Vrana NE. Cell microenvironment engineering and monitoring for tissue engineering and regenerative medicine: the recent advances. BIOMED RESEARCH INTERNATIONAL 2014; 2014:921905. [PMID: 25143954 PMCID: PMC4124711 DOI: 10.1155/2014/921905] [Citation(s) in RCA: 133] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/23/2014] [Accepted: 06/15/2014] [Indexed: 01/01/2023]
Abstract
In tissue engineering and regenerative medicine, the conditions in the immediate vicinity of the cells have a direct effect on cells' behaviour and subsequently on clinical outcomes. Physical, chemical, and biological control of cell microenvironment are of crucial importance for the ability to direct and control cell behaviour in 3-dimensional tissue engineering scaffolds spatially and temporally. In this review, we will focus on the different aspects of cell microenvironment such as surface micro-, nanotopography, extracellular matrix composition and distribution, controlled release of soluble factors, and mechanical stress/strain conditions and how these aspects and their interactions can be used to achieve a higher degree of control over cellular activities. The effect of these parameters on the cellular behaviour within tissue engineering context is discussed and how these parameters are used to develop engineered tissues is elaborated. Also, recent techniques developed for the monitoring of the cell microenvironment in vitro and in vivo are reviewed, together with recent tissue engineering applications where the control of cell microenvironment has been exploited. Cell microenvironment engineering and monitoring are crucial parts of tissue engineering efforts and systems which utilize different components of the cell microenvironment simultaneously can provide more functional engineered tissues in the near future.
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Affiliation(s)
- Julien Barthes
- Institut National de la Santé et de la Recherche Médicale (INSERM) UMR-S 1121, “Biomatériaux et Bioingénierie”, 11 rue Humann, 67085 Strasbourg Cedex, France
| | - Hayriye Özçelik
- Institut National de la Santé et de la Recherche Médicale (INSERM) UMR-S 1121, “Biomatériaux et Bioingénierie”, 11 rue Humann, 67085 Strasbourg Cedex, France
| | - Mathilde Hindié
- Equipe de Recherche sur les Relations Matrice Extracellulaire-Cellules, Université de Cergy-Pontoise, 2 Avenue Adolphe Chauvin, 95302 Cergy Pontoise, France
| | | | - Anwarul Hasan
- Biomedical Engineering and Department of Mechanical Engineering, American University of Beirut, Beirut 1107 2020, Lebanon
- Center for Biomedical Engineering, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Nihal Engin Vrana
- Institut National de la Santé et de la Recherche Médicale (INSERM) UMR-S 1121, “Biomatériaux et Bioingénierie”, 11 rue Humann, 67085 Strasbourg Cedex, France
- Protip SAS, 8 Place de l'Hôpital, 67000, Strasbourg, France
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81
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Fadeeva E, Deiwick A, Chichkov B, Schlie-Wolter S. Impact of laser-structured biomaterial interfaces on guided cell responses. Interface Focus 2014; 4:20130048. [PMID: 24501676 DOI: 10.1098/rsfs.2013.0048] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
To achieve a perfect integration of biomaterials into the body, tissue formation in contact with the interface has to be controlled. In this connection, a selective cell control is required: fibrotic encapsulation has to be inhibited, while tissue guidance has to be stimulated. As conventional biomaterials do not fulfil this specification, functionalization of the biointerface is under development to mimic the natural environment of the cells. One approach focuses on the fabrication of defined surface topographies. Thereby, ultrashort pulse laser ablation is very beneficial, owing to a large variety of fabricated structures, reduced heat-affected zones, high precision and reproducibility. We demonstrate that nanostructures in platinum and microstructures in silicon selectively control cell behaviour: inhibiting fibroblasts, while stimulating neuronal attachment and differentiation. However, the control of fibroblasts strongly correlates with the created size dimensions of the surface structures. These findings suggest favourable biomaterial interfaces for electronic devices. The mechanisms which are responsible for selective cell control are poorly understood. To give an insight, cell behaviour in dependence of biomaterial interfaces is discussed-including basic research on the role of the extracellular matrix. This knowledge is essential to understand such specific cell responses and to optimize biomaterial interfaces for future biomedical applications.
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Affiliation(s)
- Elena Fadeeva
- Laser Zentrum Hannover e.V. , Hollerithallee 8, 30419 Hannover , Germany
| | - Andrea Deiwick
- Laser Zentrum Hannover e.V. , Hollerithallee 8, 30419 Hannover , Germany
| | - Boris Chichkov
- Laser Zentrum Hannover e.V. , Hollerithallee 8, 30419 Hannover , Germany ; Institute of Quantum Optics , Leibniz University Hannover , Welfengarten 1, 30167 Hannover , Germany
| | - Sabrina Schlie-Wolter
- Laser Zentrum Hannover e.V. , Hollerithallee 8, 30419 Hannover , Germany ; Institute of Quantum Optics , Leibniz University Hannover , Welfengarten 1, 30167 Hannover , Germany
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Demais V, Audrain C, Mabilleau G, Chappard D, Baslé MF. Diversity of bone matrix adhesion proteins modulates osteoblast attachment and organization of actin cytoskeleton. Morphologie 2014; 98:53-64. [PMID: 24735942 DOI: 10.1016/j.morpho.2014.02.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2013] [Accepted: 02/12/2014] [Indexed: 06/03/2023]
Abstract
Interaction of cells with extracellular matrix is an essential event for differentiation, proliferation and activity of osteoblasts. In bone, binding of osteoblasts to bone matrix is required to determine specific activities of the cells and to synthesize matrix bone proteins. Integrins are the major cell receptors involved in the cell linkage to matrix proteins such as fibronectin, type I collagen and vitronectin, via the RGD-sequences. In this study, cultures of osteoblast-like cells (Saos-2) were done on coated glass coverslips in various culture conditions: DMEM alone or DMEM supplemented with poly-L-lysine (PL), fetal calf serum (FCS), fibronectin (FN), vitronectin (VN) and type I collagen (Col-I). The aim of the study was to determine the specific effect of these bone matrix proteins on cell adherence and morphology and on the cytoskeleton status. Morphological characteristics of cultured cells were studied using scanning electron microscopy and image analysis. The heterogeneity of cytoskeleton was studied using fractal analysis (skyscrapers and blanket algorithms) after specific preparation of cells to expose the cytoskeleton. FAK and MAPK signaling pathways were studied by western blotting in these various culture conditions. Results demonstrated that cell adhesion was reduced with PL and VN after 240 min. After 60 min of adhesion, cytoskeleton organization was enhanced with FN, VN and Col-I. No difference in FAK phosphorylation was observed but MAPK phosphorylation was modulated by specific adhesion on extracellular proteins. These results indicate that culture conditions modulate cell adhesion, cytoskeleton organization and intracellular protein pathways according to extracellular proteins present for adhesion.
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Affiliation(s)
- V Demais
- Groupe études remodelage osseux et biomatériaux (GEROM), LHEA, IRIS-IBS (institut de biologie en santé), LUNAM université, CHU d'Angers, 49933 Angers cedex, France
| | - C Audrain
- Groupe études remodelage osseux et biomatériaux (GEROM), LHEA, IRIS-IBS (institut de biologie en santé), LUNAM université, CHU d'Angers, 49933 Angers cedex, France; Service commun d'imageries et d'analyses microscopiques (SCIAM), IRIS-IBS (institut de biologie en santé), LUNAM université, CHU d'Angers, 49933 Angers cedex, France
| | - G Mabilleau
- Groupe études remodelage osseux et biomatériaux (GEROM), LHEA, IRIS-IBS (institut de biologie en santé), LUNAM université, CHU d'Angers, 49933 Angers cedex, France; Service commun d'imageries et d'analyses microscopiques (SCIAM), IRIS-IBS (institut de biologie en santé), LUNAM université, CHU d'Angers, 49933 Angers cedex, France
| | - D Chappard
- Groupe études remodelage osseux et biomatériaux (GEROM), LHEA, IRIS-IBS (institut de biologie en santé), LUNAM université, CHU d'Angers, 49933 Angers cedex, France; Service commun d'imageries et d'analyses microscopiques (SCIAM), IRIS-IBS (institut de biologie en santé), LUNAM université, CHU d'Angers, 49933 Angers cedex, France.
| | - M F Baslé
- Groupe études remodelage osseux et biomatériaux (GEROM), LHEA, IRIS-IBS (institut de biologie en santé), LUNAM université, CHU d'Angers, 49933 Angers cedex, France; Service commun d'imageries et d'analyses microscopiques (SCIAM), IRIS-IBS (institut de biologie en santé), LUNAM université, CHU d'Angers, 49933 Angers cedex, France
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83
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Effects of material and surface functional group on collagen self-assembly and subsequent cell adhesion behaviors. Colloids Surf B Biointerfaces 2014; 116:303-8. [DOI: 10.1016/j.colsurfb.2014.01.009] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2013] [Revised: 01/07/2014] [Accepted: 01/08/2014] [Indexed: 11/24/2022]
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84
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Kufelt O, El-Tamer A, Sehring C, Schlie-Wolter S, Chichkov BN. Hyaluronic Acid Based Materials for Scaffolding via Two-Photon Polymerization. Biomacromolecules 2014; 15:650-9. [DOI: 10.1021/bm401712q] [Citation(s) in RCA: 84] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Olga Kufelt
- Laser Zentrum Hannover e.V., Nanotechnology Department, Hollerithallee 8, 30419 Hannover, Germany
| | - Ayman El-Tamer
- Laser Zentrum Hannover e.V., Nanotechnology Department, Hollerithallee 8, 30419 Hannover, Germany
| | - Camilla Sehring
- Laser Zentrum Hannover e.V., Nanotechnology Department, Hollerithallee 8, 30419 Hannover, Germany
| | - Sabrina Schlie-Wolter
- Laser Zentrum Hannover e.V., Nanotechnology Department, Hollerithallee 8, 30419 Hannover, Germany
- Institute
of Quantum Optics, Leibniz University Hannover, Welfengarten 1, 30167 Hannover, Germany
| | - Boris N. Chichkov
- Laser Zentrum Hannover e.V., Nanotechnology Department, Hollerithallee 8, 30419 Hannover, Germany
- Institute
of Quantum Optics, Leibniz University Hannover, Welfengarten 1, 30167 Hannover, Germany
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85
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Goonoo N, Bhaw-Luximon A, Jhurry D. In vitro and in vivo cytocompatibility of electrospun nanofiber scaffolds for tissue engineering applications. RSC Adv 2014. [DOI: 10.1039/c4ra05218h] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
An electrospun polymeric-based nanofibrous scaffold mimicking the extracellular matrix and serving as a temporary support for cell growth, adhesion, migration and proliferation.
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Affiliation(s)
- N. Goonoo
- ANDI Centre of Excellence for Biomedical and Biomaterials Research
- University of Mauritius
- Réduit, Mauritius
| | - A. Bhaw-Luximon
- ANDI Centre of Excellence for Biomedical and Biomaterials Research
- University of Mauritius
- Réduit, Mauritius
| | - D. Jhurry
- ANDI Centre of Excellence for Biomedical and Biomaterials Research
- University of Mauritius
- Réduit, Mauritius
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