1
|
Ban E, Kim A. PicoGreen assay for nucleic acid quantification - Applications, challenges, and solutions. Anal Biochem 2024; 692:115577. [PMID: 38789006 DOI: 10.1016/j.ab.2024.115577] [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: 01/18/2024] [Revised: 05/20/2024] [Accepted: 05/21/2024] [Indexed: 05/26/2024]
Abstract
Various analytical methods and reagents have been employed for nucleic acid analysis in cells, biological fluids, and formulations. Standard techniques like gel electrophoresis and qRT-PCR are widely used for qualitative and quantitative nucleic acid analysis. However, these methods can be time-consuming and labor-intensive, with limitations such as inapplicability to small RNA at low concentrations and high costs associated with qRT-PCR reagents and instruments. As an alternative, PicoGreen (PG) has emerged as a valuable method for the quantitative analysis of nucleic acids. PG, a fluorescent dye, enables the quantitation of double-stranded DNA (dsDNA) or double-stranded RNA, including miRNA mimic and siRNA, in solution. It is also applicable to DNA and RNA analysis within cells using techniques like FACS and fluorescence microscopy. Despite its advantages, PG's fluorescence intensity is affected by various experimental conditions, such as pH, salts, and chemical reagents. This review explores the recent applications of PG as a rapid, cost-effective, robust, and accurate assay tool for nucleic acid quantification. We also address the limitations of PG and discuss approaches to overcome these challenges, recognizing the expanding range of its applications.
Collapse
Affiliation(s)
- Eunmi Ban
- College of Pharmacy, CHA University, Seongnam, 13488, South Korea
| | - Aeri Kim
- College of Pharmacy, CHA University, Seongnam, 13488, South Korea.
| |
Collapse
|
2
|
Oliverio R, Liberelle B, Patenaude V, Moreau V, Thomas E, Virgilio N, Banquy X, De Crescenzo G. Cofunctionalization of Macroporous Dextran Hydrogels with Adhesive Peptides and Growth Factors Enables Vascular Spheroid Sprouting. ACS Biomater Sci Eng 2024; 10:5080-5093. [PMID: 39038278 DOI: 10.1021/acsbiomaterials.4c00455] [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] [Indexed: 07/24/2024]
Abstract
Ensuring good definition of scaffolds used for 3D cell culture is a prominent challenge that hampers the development of tissue engineering platforms. Since dextran repels cell adhesion, using dextran-based materials biofunctionalized through a bottom-up approach allows for precise control over material definition. Here, we report the design of dextran hydrogels displaying a fully interconnected macropore network for the culture of vascular spheroids in vitro. We biofunctionalized the hydrogels with the RGD peptide sequence to promote cell adhesion. We used an affinity peptide pair, the E/K coiled coil, to load the gels with epidermal growth factor (EGF) and vascular endothelial growth factor (VEGF). Dual functionalization with adhesive and proliferative cues allows vascular spheroids to colonize naturally cell-repellant dextran. In supplement-depleted medium, we report improved colonization of the macropores compared to that of unmodified dextran. Altogether, we propose a well-defined and highly versatile platform for tissue engineering and tissue vascularization applications.
Collapse
Affiliation(s)
- Romane Oliverio
- Department of Chemical Engineering, Polytechnique Montréal, Montréal H3T 1J4, Québec, Canada
- Faculty of Pharmacy, Axe Formulation et Analyse du Médicament (AFAM), Université de Montréal, Montréal H3T 1J4, Québec, Canada
| | - Benoît Liberelle
- Department of Chemical Engineering, Polytechnique Montréal, Montréal H3T 1J4, Québec, Canada
| | - Victor Patenaude
- Department of Chemical Engineering, Polytechnique Montréal, Montréal H3T 1J4, Québec, Canada
| | - Vaiana Moreau
- Department of Chemical Engineering, Polytechnique Montréal, Montréal H3T 1J4, Québec, Canada
- Department of Chemical Engineering, Centre de Recherche sur les Systèmes Polymères et Composites à Haute Performance (CREPEC), Polytechnique Montréal, Montréal H3T 1J4, Québec, Canada
| | - Elian Thomas
- Department of Chemical Engineering, Polytechnique Montréal, Montréal H3T 1J4, Québec, Canada
| | - Nick Virgilio
- Department of Chemical Engineering, Centre de Recherche sur les Systèmes Polymères et Composites à Haute Performance (CREPEC), Polytechnique Montréal, Montréal H3T 1J4, Québec, Canada
| | - Xavier Banquy
- Faculty of Pharmacy, Axe Formulation et Analyse du Médicament (AFAM), Université de Montréal, Montréal H3T 1J4, Québec, Canada
| | - Gregory De Crescenzo
- Department of Chemical Engineering, Polytechnique Montréal, Montréal H3T 1J4, Québec, Canada
| |
Collapse
|
3
|
Yoshikawa O, Basoli V, Boschetto F, Rondinella A, Lanzutti A, Zhu W, Greco E, Thieringer FM, Xu H, Marin E. Simple Electrospinning Method for Biocompatible Polycaprolactone β-Carotene Scaffolds: Advantages and Limitations. Polymers (Basel) 2024; 16:1371. [PMID: 38794563 PMCID: PMC11125378 DOI: 10.3390/polym16101371] [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: 04/15/2024] [Revised: 05/03/2024] [Accepted: 05/07/2024] [Indexed: 05/26/2024] Open
Abstract
In this study, electrospun scaffolds were fabricated using polycaprolactone (PCL) loaded with varying concentrations of β-carotene (1.2%, 2.4%, and 3.6%) via the electrospinning technique. The electrospinning process involved the melting of PCL in acetic acid, followed by the incorporation of β-carotene powder under constant stirring. Raman spectroscopy revealed a homogeneous distribution of β-carotene within the PCL matrix. However, the β-carotene appeared in particulate form, rather than being dissolved and blended with the PCL matrix, a result also confirmed by thermogravimetric analysis. Additionally, X-ray diffraction analysis indicated a decrease in crystallinity with increasing β-carotene concentration. Mechanical testing of the scaffolds demonstrated an increase in ultimate strain, accompanied by a reduction in ultimate stress, indicating a potential plasticizing effect. Moreover, antimicrobial assays revealed a marginal antibacterial effect against Escherichia coli for scaffolds with higher β-carotene concentrations. Conversely, preliminary biological assessment using KUSA-A1 mesenchymal cells indicated enhanced cellular proliferation in response to the scaffolds, suggesting the potential biocompatibility and cell-stimulating properties of β-carotene-loaded PCL scaffolds. Overall, this study provides insights into the fabrication and characterization of electrospun PCL scaffolds containing β-carotene, laying the groundwork for further exploration in tissue engineering and regenerative medicine applications.
Collapse
Affiliation(s)
- Orion Yoshikawa
- Ceramic Physics Laboratory, Faculty of Materials Science and Engineering, Kyoto Institute of Technology, Sakyo-ku, Matsugasaki, Kyoto 606-8585, Japan; (O.Y.); (W.Z.)
| | - Valentina Basoli
- Medical Additive Manufacturing Research Group (Swiss MAM), Department of Biomedical Engineering, University of Basel, Hegenheimermattweg 167C, 4123 Allschwil, Switzerland; (V.B.); (F.M.T.)
| | - Francesco Boschetto
- Center for Excellence in Hip, Scottish Rite for Children, Dallas, TX 75219, USA;
- Department of Orthopedic Surgery, UT Southwestern Medical Center, Dallas, TX 75390, USA
| | - Alfredo Rondinella
- Polytechnic Department of Engineering and Architecture, University of Udine, 33100 Udine, Italy; (A.R.); (A.L.)
| | - Alex Lanzutti
- Polytechnic Department of Engineering and Architecture, University of Udine, 33100 Udine, Italy; (A.R.); (A.L.)
| | - Wenliang Zhu
- Ceramic Physics Laboratory, Faculty of Materials Science and Engineering, Kyoto Institute of Technology, Sakyo-ku, Matsugasaki, Kyoto 606-8585, Japan; (O.Y.); (W.Z.)
| | - Enrico Greco
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, 34127 Trieste, Italy;
- National Interuniversity Consortium of Materials Science and Technology (INSTM), Trieste Research Unity, Via G. Giusti 9, 50121 Firenze, Italy
| | - Florian Markus Thieringer
- Medical Additive Manufacturing Research Group (Swiss MAM), Department of Biomedical Engineering, University of Basel, Hegenheimermattweg 167C, 4123 Allschwil, Switzerland; (V.B.); (F.M.T.)
- Clinic of Oral and Cranio-Maxillofacial Surgery, University Hospital Basel, 4031 Basel, Switzerland
| | - Huaizhong Xu
- Department of Biobased Materials Science, Kyoto Institute of Technology, Sakyo-ku, Matsugasaki, Kyoto 606-8585, Japan;
| | - Elia Marin
- Polytechnic Department of Engineering and Architecture, University of Udine, 33100 Udine, Italy; (A.R.); (A.L.)
- Biomaterials Engineering Laboratory, Kyoto Institute of Technology, Sakyo-ku, Matsugasaki, Kyoto 606-8585, Japan
- Biomedical Research Center, Kyoto Institute of Technology, Sakyo-ku, Matsugasaki, Kyoto 606-8585, Japan
- Materials Innovation Laboratory, Kyoto Institute of Technology, Sakyo-ku, Matsugasaki, Kyoto 606-8585, Japan
| |
Collapse
|
4
|
Schweinitzer S, Kadousaraei MJ, Aydin MS, Mustafa K, Rashad A. Measuring cell proliferation in bioprinting research. Biomed Mater 2024; 19:031001. [PMID: 38518363 DOI: 10.1088/1748-605x/ad3700] [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: 09/14/2023] [Accepted: 03/22/2024] [Indexed: 03/24/2024]
Abstract
Tissue-like constructs, intended for application in tissue engineering and regenerative medicine, can be produced by three-dimensional (3D) bioprinting of cells in hydrogels. It is essential that the viability and proliferation of the encapsulated cells can be reliably determined. Methods currently used to evaluate cell proliferation, such as quantification of DNA and measurement of metabolic activity, have been developed for application in 2D cultures and might not be suitable for bioinks. In this study, human fibroblasts were either cast or printed in gelatin methacryloyl (GelMA) or sodium alginate hydrogels and cell proliferation was assessed by AlamarBlue, PicoGreen and visual cell counts. Comparison of data extrapolated from standard curves generated from 2D cultures and 3D hydrogels showed potential inaccuracies. Moreover, there were pronounced discrepancies in cell numbers obtained from these assays; the different bioinks strongly influenced the outcomes. Overall, the results indicate that more than one method should be applied for better assessment of cell proliferation in bioinks.
Collapse
Affiliation(s)
- Sophie Schweinitzer
- Department of Biochemistry, Julius-Maximilians-University Würzburg, Würzburg, Germany
- Center of Translational Oral Research, Department of Clinical Dentistry, University of Bergen, Bergen, Norway
| | - Masoumeh Jahani Kadousaraei
- Center of Translational Oral Research, Department of Clinical Dentistry, University of Bergen, Bergen, Norway
| | - Mehmet Serhat Aydin
- Center of Translational Oral Research, Department of Clinical Dentistry, University of Bergen, Bergen, Norway
| | - Kamal Mustafa
- Center of Translational Oral Research, Department of Clinical Dentistry, University of Bergen, Bergen, Norway
| | - Ahmad Rashad
- Center of Translational Oral Research, Department of Clinical Dentistry, University of Bergen, Bergen, Norway
| |
Collapse
|
5
|
Avnet S, Pompo GD, Borciani G, Fischetti T, Graziani G, Baldini N. Advantages and limitations of using cell viability assays for 3D bioprinted constructs. Biomed Mater 2024; 19:025033. [PMID: 38306683 DOI: 10.1088/1748-605x/ad2556] [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: 11/18/2023] [Accepted: 02/02/2024] [Indexed: 02/04/2024]
Abstract
Bioprinting shows promise for bioengineered scaffolds and three-dimensional (3D) disease models, but assessing the viability of embedded cells is challenging. Conventional assays are limited by the technical problems that derive from using multi-layered bioink matrices dispersing cells in three dimensions. In this study, we tested bioprinted osteogenic bioinks as a model system. Alginate- or gelatin-based bioinks were loaded with/without ceramic microparticles and osteogenic cells (bone tumor cells, with or without normal bone cells). Despite demonstrating 80%-90% viability through manual counting and live/dead staining, this was time-consuming and operator-dependent. Moreover, for the alginate-bioprinted scaffold, cell spheroids could not be distinguished from single cells. The indirect assay (alamarBlue), was faster but less accurate than live/dead staining due to dependence on hydrogel permeability. Automated confocal microscope acquisition and cell counting of live/dead staining was more reproducible, reliable, faster, efficient, and avoided overestimates compared to manual cell counting by optical microscopy. Finally, for 1.2 mm thick 3D bioprints, dual-photon confocal scanning with vital staining greatly improved the precision of the evaluation of cell distribution and viability and cell-cell interactions through thez-axis. In summary, automated confocal microscopy and cell counting provided superior accuracy for the assessment of cell viability and interactions in 3D bioprinted models compared to most commonly and currently used techniques.
Collapse
Affiliation(s)
- Sofia Avnet
- Department of Biomedical and Neuromotor Sciences, Alma Mater Studiorum-Università di Bologna, Bologna, Italy
| | - Gemma Di Pompo
- Biomedical Science Technologies, and Nanobiotechnology Lab, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Giorgia Borciani
- Biomedical Science Technologies, and Nanobiotechnology Lab, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Tiziana Fischetti
- Biomedical Science Technologies, and Nanobiotechnology Lab, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Gabriela Graziani
- Biomedical Science Technologies, and Nanobiotechnology Lab, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Nicola Baldini
- Department of Biomedical and Neuromotor Sciences, Alma Mater Studiorum-Università di Bologna, Bologna, Italy
- Biomedical Science Technologies, and Nanobiotechnology Lab, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| |
Collapse
|
6
|
Kadi F, Dini G, Poursamar SA, Ejeian F. Fabrication and characterization of 3D-printed composite scaffolds of coral-derived hydroxyapatite nanoparticles/polycaprolactone/gelatin carrying doxorubicin for bone tissue engineering. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2024; 35:7. [PMID: 38285297 PMCID: PMC10824813 DOI: 10.1007/s10856-024-06779-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2023] [Accepted: 01/10/2024] [Indexed: 01/30/2024]
Abstract
In this study, nanocomposite scaffolds of hydroxyapatite (HA)/polycaprolactone (PCL)/gelatin (Gel) with varying amounts of HA (42-52 wt. %), PCL (42-52 wt. %), and Gel (6 wt. %) were 3D printed. Subsequently, a scaffold with optimal mechanical properties was utilized as a carrier for doxorubicin (DOX) in the treatment of bone cancer. For this purpose, HA nanoparticles were first synthesized by the hydrothermal conversion of Acropora coral and characterized by using different techniques. Also, a compression test was performed to investigate the mechanical properties of the fabricated scaffolds. The mineralization of the optimal scaffold was determined by immersing it in simulated body fluid (SBF) solution for 28 days, and the biocompatibility was investigated by seeding MG-63 osteoblast-like cells on it after 1-7 days. The obtained results showed that the average size of the synthesized HA particles was about 80 nm. The compressive modulus and strength of the scaffold with 47 wt. % HA was reported to be 0.29 GPa and 9.9 MPa, respectively, which was in the range of trabecular bones. In addition, the scaffold surface was entirely coated with an apatite layer after 28 days of soaking in SBF. Also, the efficiency and loading percentage of DOX were obtained as 30.8 and 1.6%, respectively. The drug release behavior was stable for 14 days. Cytotoxicity and adhesion evaluations showed that the fabricated scaffold had no negative effects on the viability of MG-63 cells and led to their proliferation during the investigated period. From these results, it can be concluded that the HA/PCL/Gel scaffold prepared in this study, in addition to its drug release capability, has good bioactivity, mechanical properties, and biocompatibility, and can be considered a suitable option for bone tumor treatment.
Collapse
Affiliation(s)
- Fatima Kadi
- Department of Nanotechnology, Faculty of Chemistry, University of Isfahan, Isfahan, 81746-73441, Iran
| | - Ghasem Dini
- Department of Nanotechnology, Faculty of Chemistry, University of Isfahan, Isfahan, 81746-73441, Iran.
| | - S Ali Poursamar
- Department of Biomaterials, Nanotechnology, and Tissue Engineering, School of Advanced Technologies in Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Fatemeh Ejeian
- Department of Animal Biotechnology, Cell Science Research Center, Royan Institute for Biotechnology, ACECR, Isfahan, 81593-58686, Iran
| |
Collapse
|
7
|
Sharma A, Moore E, Williams LN. An in vitro study of micromechanics, cellular proliferation and viability on both decellularized porcine dura grafts and native porcine dura grafts. BIOMEDICAL ENGINEERING ADVANCES 2023; 6:100108. [PMID: 38259430 PMCID: PMC10803071 DOI: 10.1016/j.bea.2023.100108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2024] Open
Abstract
Damage to the dura mater may occur during intracranial or spinal surgeries, which can result in cerebrospinal fluid leakage and other potentially fatal physiological changes. As a result, biological and synthetic derived scaffolds are typically used to repair dura mater post intracranial or spinal surgeries. The extracellular matrix of xenogeneic dura scaffolds has been shown to exhibit increased cell infiltration and regeneration than synthetic dura materials. In this study, we investigated the biocompatibility of native and decellularized porcine dura by seeding rat fibroblast cells onto the constructs. Cell proliferation, cell viability, and the mechanical properties of these dural grafts were evaluated post-re-seeding on days 3,7 and 14. Live-dead staining and resazurin salts were used to quantify cell viability and cell proliferation, respectively. Micro indentation was conducted to quantify the mechanical integrity of the native and acellular dura graft. The findings indicate that the acellular porcine dura graft creates a beneficial setting for infiltrating rat fibroblast cells. Cell viability, proliferation, and micro indentation results on the acellular grafts are comparable with the native control porcine dura tissue. In conclusion, the porcine scaffold material showed increased cell viability at each time point evaluated. The sustained mechanical response and favorable viability of the cells on the decellularized grafts provide promising insight into the potential use of porcine dura in clinical cranial dura mater graft applications.
Collapse
Affiliation(s)
- Ashma Sharma
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Gainesville, FL 32611, USA
| | - Erika Moore
- Fischell Department of Bioengineering, University of Maryland, College Park, MD 20742, USA
| | - Lakiesha N. Williams
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Gainesville, FL 32611, USA
| |
Collapse
|
8
|
Harley-Troxell ME, Steiner R, Advincula RC, Anderson DE, Dhar M. Interactions of Cells and Biomaterials for Nerve Tissue Engineering: Polymers and Fabrication. Polymers (Basel) 2023; 15:3685. [PMID: 37765540 PMCID: PMC10536046 DOI: 10.3390/polym15183685] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Revised: 08/31/2023] [Accepted: 09/01/2023] [Indexed: 09/29/2023] Open
Abstract
Neural injuries affect millions globally, significantly impacting their quality of life. The inability of these injuries to heal, limited ability to regenerate, and the lack of available treatments make regenerative medicine and tissue engineering a promising field of research for developing methods for nerve repair. This review evaluates the use of natural and synthetic polymers, and the fabrication methods applied that influence a cell's behavior. Methods include cross-linking hydrogels, incorporation of nanoparticles, and 3D printing with and without live cells. The endogenous cells within the injured area and any exogenous cells seeded on the polymer construct play a vital role in regulating healthy neural activity. This review evaluates the body's local and systemic reactions to the implanted materials. Although numerous variables are involved, many of these materials and methods have exhibited the potential to provide a biomaterial environment that promotes biocompatibility and the regeneration of a physical and functional nerve. Future studies may evaluate advanced methods for modifying material properties and characterizing the tissue-biomaterial interface for clinical applications.
Collapse
Affiliation(s)
- Meaghan E. Harley-Troxell
- Tissue Engineering and Regenerative Medicine, Large Animal Clinical Sciences, College of Veterinary Medicine, University of Tennessee, Knoxville, TN 37996, USA; (M.E.H.-T.); (R.S.); (D.E.A.)
| | - Richard Steiner
- Tissue Engineering and Regenerative Medicine, Large Animal Clinical Sciences, College of Veterinary Medicine, University of Tennessee, Knoxville, TN 37996, USA; (M.E.H.-T.); (R.S.); (D.E.A.)
| | - Rigoberto C. Advincula
- Department of Chemical and Biomolecular Engineering, University of Tennessee, Knoxville, TN 37996, USA;
- Oak Ridge National Laboratory, Center for Nanophase Materials Sciences, Oak Ridge, TN 37831, USA
| | - David E. Anderson
- Tissue Engineering and Regenerative Medicine, Large Animal Clinical Sciences, College of Veterinary Medicine, University of Tennessee, Knoxville, TN 37996, USA; (M.E.H.-T.); (R.S.); (D.E.A.)
| | - Madhu Dhar
- Tissue Engineering and Regenerative Medicine, Large Animal Clinical Sciences, College of Veterinary Medicine, University of Tennessee, Knoxville, TN 37996, USA; (M.E.H.-T.); (R.S.); (D.E.A.)
| |
Collapse
|
9
|
Wysokowski M, Machałowski T, Idaszek J, Chlanda A, Jaroszewicz J, Heljak M, Niemczak M, Piasecki A, Gajewska M, Ehrlich H, Święszkowski W, Jesionowski T. Deep eutectic solvent-assisted fabrication of bioinspired 3D carbon-calcium phosphate scaffolds for bone tissue engineering. RSC Adv 2023; 13:21971-21981. [PMID: 37483675 PMCID: PMC10358318 DOI: 10.1039/d3ra02356g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Accepted: 07/09/2023] [Indexed: 07/25/2023] Open
Abstract
Tissue engineering is a burgeoning field focused on repairing damaged tissues through the combination of bodily cells with highly porous scaffold biomaterials, which serve as templates for tissue regeneration, thus facilitating the growth of new tissue. Carbon materials, constituting an emerging class of superior materials, are currently experiencing remarkable scientific and technological advancements. Consequently, the development of novel 3D carbon-based composite materials has become significant for biomedicine. There is an urgent need for the development of hybrids that will combine the unique bioactivity of ceramics with the performance of carbonaceous materials. Considering these requirements, herein, we propose a straightforward method of producing a 3D carbon-based scaffold that resembles the structural features of spongin, even on the nanometric level of their hierarchical organization. The modification of spongin with calcium phosphate was achieved in a deep eutectic solvent (choline chloride : urea, 1 : 2). The holistic characterization of the scaffolds confirms their remarkable structural features (i.e., porosity, connectivity), along with the biocompatibility of α-tricalcium phosphate (α-TCP), rendering them a promising candidate for stem cell-based tissue-engineering. Culturing human bone marrow mesenchymal stem cells (hMSC) on the surface of the biomimetic scaffold further verifies its growth-facilitating properties, promoting the differentiation of these cells in the osteogenesis direction. ALP activity was significantly higher in osteogenic medium compared to proliferation, indicating the differentiation of hMSC towards osteoblasts. However, no significant difference between C and C-αTCP in the same medium type was observed.
Collapse
Affiliation(s)
- Marcin Wysokowski
- Institute of Chemical Technology and Engineering, Faculty of Chemical Technology, Poznan University of Technology Poznan 60-965 Poland
| | - Tomasz Machałowski
- Institute of Chemical Technology and Engineering, Faculty of Chemical Technology, Poznan University of Technology Poznan 60-965 Poland
| | - Joanna Idaszek
- Faculty of Materials Science and Engineering, Warsaw University of Technology Warsaw 02-507 Poland
| | - Adrian Chlanda
- Lukasiewicz Research Network - Institute of Microelectronics and Photonics, Flake Graphene Research Group 02-668 Warsaw Poland
| | - Jakub Jaroszewicz
- Faculty of Materials Science and Engineering, Warsaw University of Technology Warsaw 02-507 Poland
| | - Marcin Heljak
- Faculty of Materials Science and Engineering, Warsaw University of Technology Warsaw 02-507 Poland
| | - Michał Niemczak
- Institute of Chemical Technology and Engineering, Faculty of Chemical Technology, Poznan University of Technology Poznan 60-965 Poland
| | - Adam Piasecki
- Institute of Materials Engineering, Poznan University of Technology Piotrowo 3 61138 Poznan Poland
| | - Marta Gajewska
- Academic Centre for Materials and Nanotechnology, AGH University of Science and Technology Mickiewicza 30 30-059 Kraków Poland
| | - Hermann Ehrlich
- Institute of Chemical Technology and Engineering, Faculty of Chemical Technology, Poznan University of Technology Poznan 60-965 Poland
- Center for Advanced Technologies, Adam Mickiewicz University Uniwersytetu Poznanskiego 10 61-614 Poznan Poland
| | - Wojciech Święszkowski
- Faculty of Materials Science and Engineering, Warsaw University of Technology Warsaw 02-507 Poland
| | - Teofil Jesionowski
- Institute of Chemical Technology and Engineering, Faculty of Chemical Technology, Poznan University of Technology Poznan 60-965 Poland
| |
Collapse
|
10
|
Bada L, Pereira RB, Pereira DM, Lores M, Celeiro M, Quezada E, Uriarte E, Gil-Longo J, Viña D. Phytochemical Analysis and Antiproliferative Activity of Ulex gallii Planch. (Fabaceae), a Medicinal Plant from Galicia (Spain). MOLECULES (BASEL, SWITZERLAND) 2023; 28:molecules28010351. [PMID: 36615543 PMCID: PMC9822445 DOI: 10.3390/molecules28010351] [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: 11/28/2022] [Revised: 12/23/2022] [Accepted: 12/27/2022] [Indexed: 01/03/2023]
Abstract
The genus Ulex comprises thirteen accepted species of perennial shrubs in the family Fabaceae. In Galicia (Spain) many of these are considered spontaneous colonizing species, which are easy to establish and maintain. Among them, Ulex gallii Planch. is used in traditional medicine for the same anti-infective, hypotensive and diuretic purposes as Ulex europaeus L., which is the most studied species. Likewise, some studies have described the antitumoral properties of several species. However, there are few scientific studies that justify the use of Ulex gallii Planch. and nothing has been reported about its composition to date. In our study, the entire plant was extracted with methanol and the crude extract was subjected to liquid phase extraction with distinct solvents, yielding three fractions: hexane (H), dichloromethane (D) and methanol (M), which were subsequently fractionated. The dichloromethane (D5, D7 and D8) and methanol (M4) sub-fractions showed antiproliferative activity on A549 (lung cancer) and AGS (stomach cancer) cell lines, and caspase 3/7 activity assessment and DNA quantification were also performed. Targeted analysis via UHPLC-QToF, in combination with untargeted analysis via MS-Dial, MS-Finder and Global Natural Products Social Molecular Networking (GNPS), allowed us to tentatively identify different metabolites in these sub-fractions, mostly flavonoids, that might be involved in their antiproliferative activity.
Collapse
Affiliation(s)
- Lucía Bada
- Group of Pharmacology of Chronic Diseases (CD Pharma), Molecular Medicine and Chronic Diseases Research Centre (CIMUS), Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
- Department of Pharmacology, Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Renato B. Pereira
- REQUIMTE/LAQV, Laboratório de Farmacognosia, Departamento de Química, Faculdade de Farmácia, Universidade do Porto, 4050-313 Porto, Portugal
| | - David M. Pereira
- REQUIMTE/LAQV, Laboratório de Farmacognosia, Departamento de Química, Faculdade de Farmácia, Universidade do Porto, 4050-313 Porto, Portugal
- Correspondence: (D.M.P.); (D.V.); Tel.: +351-22-042-8655 (D.M.P.); +34-881-815-424 (D.V.)
| | - Marta Lores
- Laboratory of Research and Development of Analytical Solutions (LIDSA), Department of Analytical Chemistry, Nutrition and Food Science, Faculty of Chemistry, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - María Celeiro
- CRETUS Institute, Department of Analytical Chemistry, Nutrition and Food Science, Campus Vida, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Elías Quezada
- Department of Organic Chemistry, Faculty of Pharmacy, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Eugenio Uriarte
- Department of Organic Chemistry, Faculty of Pharmacy, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
- Instituto de Ciencias Químicas Aplicadas, Universidad Autónoma de Chile, Santiago 7500912, Chile
| | - José Gil-Longo
- Department of Pharmacology, Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Dolores Viña
- Group of Pharmacology of Chronic Diseases (CD Pharma), Molecular Medicine and Chronic Diseases Research Centre (CIMUS), Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
- Department of Pharmacology, Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
- Correspondence: (D.M.P.); (D.V.); Tel.: +351-22-042-8655 (D.M.P.); +34-881-815-424 (D.V.)
| |
Collapse
|
11
|
García-Briega MI, Ródenas-Rochina J, Martins LA, Lanceros-Méndez S, Gallego Ferrer G, Sempere A, Gómez Ribelles JL. Stability of Biomimetically Functionalised Alginate Microspheres as 3D Support in Cell Cultures. Polymers (Basel) 2022; 14:4282. [PMID: 36297867 PMCID: PMC9611185 DOI: 10.3390/polym14204282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 10/04/2022] [Accepted: 10/05/2022] [Indexed: 11/29/2022] Open
Abstract
Alginate hydrogels can be used to develop a three-dimensional environment in which various cell types can be grown. Cross-linking the alginate chains using reversible ionic bonds opens up great possibilities for the encapsulation and subsequent release of cells or drugs. However, alginate also has a drawback in that its structure is not very stable in a culture medium with cellular activity. This work explored the stability of alginate microspheres functionalised by grafting specific biomolecules onto their surface to form microgels in which biomimetic microspheres surrounded the cells in the culture, reproducing the natural microenvironment. A study was made of the stability of the microgel in different typical culture media and the formation of polyelectrolyte multilayers containing polylysine and heparin. Multiple myeloma cell proliferation in the culture was tested in a bioreactor under gentle agitation.
Collapse
Affiliation(s)
- María Inmaculada García-Briega
- Centre for Biomaterials and Tissue Engineering (CBIT) Universitat Politècnica de València, 46022 Valencia, Spain
- Biomedical Research Networking Centre on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), 46022 Valencia, Spain
| | - Joaquín Ródenas-Rochina
- Centre for Biomaterials and Tissue Engineering (CBIT) Universitat Politècnica de València, 46022 Valencia, Spain
| | - Luis Amaro Martins
- Centre for Biomaterials and Tissue Engineering (CBIT) Universitat Politècnica de València, 46022 Valencia, Spain
| | - Senentxu Lanceros-Méndez
- Centre of Physics, Universidade Do Minho, 4710-057 Braga, Portugal
- BCMaterials, Basque Centre for Materials, Applications and Nanostructures, UPV/EHU Science Park, 48940 Leioa, Spain
- IKERBASQUE, Basque Foundation for Science, 48013 Bilbao, Spain
| | - Gloria Gallego Ferrer
- Centre for Biomaterials and Tissue Engineering (CBIT) Universitat Politècnica de València, 46022 Valencia, Spain
- Biomedical Research Networking Centre on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), 46022 Valencia, Spain
| | - Amparo Sempere
- Grupo de Investigación en Hematología, Instituto de Investigación Sanitaria La Fe (IISLAFE), 46026 Valencia, Spain
- Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Instituto Carlos III, 28029 Madrid, Spain
| | - José Luís Gómez Ribelles
- Centre for Biomaterials and Tissue Engineering (CBIT) Universitat Politècnica de València, 46022 Valencia, Spain
- Biomedical Research Networking Centre on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), 46022 Valencia, Spain
| |
Collapse
|
12
|
Zhang W, Rau S, Kotzagiorgis K, Rothweiler R, Nahles S, Gottwald E, Rolauffs B, Steinberg T, Nelson K, Altmann B. A matter of origin - identification of SEMA3A, BGLAP, SPP1 and PHEX as distinctive molecular features between bone site-specific human osteoblasts on transcription level. Front Bioeng Biotechnol 2022; 10:918866. [PMID: 36246375 PMCID: PMC9554416 DOI: 10.3389/fbioe.2022.918866] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Accepted: 09/12/2022] [Indexed: 11/13/2022] Open
Abstract
In oral and maxillofacial bone reconstruction, autografts from the iliac crest represent the gold standard due to their superior clinical performance, compared to autografts derived from other extraoral regions. Thus, the aim of our study was to identify putative differences between osteoblasts derived from alveolar (hOB-A) and iliac crest (hOB-IC) bone of the same donor (nine donors) by means of their molecular properties in 2D and 3D culture. We thereby focused on the gene expression of biomarkers involved in osteogenic differentiation, matrix formation and osteoclast modulation. Furthermore, we examined the transcriptional response to Vit.D3 in hOB-A and hOB-IC. Our results revealed different modulation modes of the biomarker expression in osteoblasts, namely cell origin/bone entity-dependent, and culture configuration- and/or time-dependent modulations. SEMA3A, SPP1, BGLAP and PHEX demonstrated the strongest dependence on cell origin. With respect to Vit.D3-effects, BGLAP, SPP1 and ALPL displayed the highest Vit.D3-responsiveness. In this context we demonstrated that the transcriptional Vit.D3-response concerning SPP1 and ALPL in human osteoblasts depended on the cell origin. The results indicate a higher bone remodeling activity of iliac crest than alveolar osteoblasts and support the growing evidence that a high osteoclast activity at the host-/donor bone interface may support graft integration.
Collapse
Affiliation(s)
- Weiping Zhang
- G.E.R.N Research Center for Tissue Replacement, Regeneration & Neogenesis, Department of Oral- and Craniomaxillofacial Surgery, Medical Center, University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Sibylle Rau
- Department of Oral and Craniomaxillofacial Surgery, Medical Center, University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Konstantinos Kotzagiorgis
- G.E.R.N Research Center for Tissue Replacement, Regeneration & Neogenesis, Department of Prosthetic Dentistry, Medical Center, University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - René Rothweiler
- Department of Oral and Craniomaxillofacial Surgery, Medical Center, University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Susanne Nahles
- Department of Oral and Maxillofacial Surgery, Berlin Institute of Health, Corporate Member of Freie Universität Berlin, Charité - Universitätsmedizin Berlin, Humboldt-Universität zu Berlin, Berlin, Germany
| | - Eric Gottwald
- Group 3D Cell Culture Systems, Institute of Functional Interfaces, Karlsruhe Institute of Technology, Karlsruhe, Germany
| | - Bernd Rolauffs
- G.E.R.N Research Center for Tissue Replacement, Regeneration & Neogenesis, Department of Orthopedics and Trauma Surgery, Medical Center, University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Thorsten Steinberg
- Department of Oral Biotechnology, Center for Dental Medicine, Medical Center, University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Katja Nelson
- Department of Oral and Craniomaxillofacial Surgery, Medical Center, University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Brigitte Altmann
- G.E.R.N Research Center for Tissue Replacement, Regeneration & Neogenesis, Department of Prosthetic Dentistry, Medical Center, University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
- *Correspondence: Brigitte Altmann,
| |
Collapse
|
13
|
The development of a 3D printable chitosan-based copolymer with tunable properties for dentoalveolar regeneration. Carbohydr Polym 2022; 289:119441. [DOI: 10.1016/j.carbpol.2022.119441] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Revised: 03/07/2022] [Accepted: 03/30/2022] [Indexed: 12/29/2022]
|
14
|
Nii T. Strategies Using Gelatin Microparticles for Regenerative Therapy and Drug Screening Applications. Molecules 2021; 26:molecules26226795. [PMID: 34833885 PMCID: PMC8617939 DOI: 10.3390/molecules26226795] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Revised: 11/08/2021] [Accepted: 11/09/2021] [Indexed: 11/17/2022] Open
Abstract
Gelatin, a denatured form of collagen, is an attractive biomaterial for biotechnology. In particular, gelatin particles have been noted due to their attractive properties as drug carriers. The drug release from gelatin particles can be easily controlled by the crosslinking degree of gelatin molecule, responding to the purpose of the research. The gelatin particles capable of drug release are effective in wound healing, drug screening models. For example, a sustained release of growth factors for tissue regeneration at the injured sites can heal a wound. In the case of the drug screening model, a tissue-like model composed of cells with high activity by the sustained release of drug or growth factor provides reliable results of drug effects. Gelatin particles are effective in drug delivery and the culture of spheroids or cell sheets because the particles prevent hypoxia-derived cell death. This review introduces recent research on gelatin microparticles-based strategies for regenerative therapy and drug screening models.
Collapse
Affiliation(s)
- Teruki Nii
- Graduate School of Systems Life Sciences, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan;
- Department of Applied Chemistry, Faculty of Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| |
Collapse
|
15
|
A Bilayer Osteochondral Scaffold with Self‐Assembled Monomeric Collagen Type‐I, Type‐II, and Polymerized Chondroitin Sulfate Promotes Chondrogenic and Osteogenic Differentiation of Mesenchymal Stem Cells. ADVANCED NANOBIOMED RESEARCH 2021. [DOI: 10.1002/anbr.202100089] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
|
16
|
DNA Dyes-Highly Sensitive Reporters of Cell Quantification: Comparison with Other Cell Quantification Methods. Molecules 2021; 26:molecules26185515. [PMID: 34576986 PMCID: PMC8465179 DOI: 10.3390/molecules26185515] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Revised: 09/07/2021] [Accepted: 09/08/2021] [Indexed: 12/25/2022] Open
Abstract
Cell quantification is widely used both in basic and applied research. A typical example of its use is drug discovery research. Presently, plenty of methods for cell quantification are available. In this review, the basic techniques used for cell quantification, with a special emphasis on techniques based on fluorescent DNA dyes, are described. The main aim of this review is to guide readers through the possibilities of cell quantification with various methods and to show the strengths and weaknesses of these methods, especially with respect to their sensitivity, accuracy, and length. As these methods are frequently accompanied by an analysis of cell proliferation and cell viability, some of these approaches are also described.
Collapse
|
17
|
Gao G, Ahn M, Cho WW, Kim BS, Cho DW. 3D Printing of Pharmaceutical Application: Drug Screening and Drug Delivery. Pharmaceutics 2021; 13:1373. [PMID: 34575448 PMCID: PMC8465948 DOI: 10.3390/pharmaceutics13091373] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 08/20/2021] [Accepted: 08/29/2021] [Indexed: 12/22/2022] Open
Abstract
Advances in three-dimensional (3D) printing techniques and the development of tailored biomaterials have facilitated the precise fabrication of biological components and complex 3D geometrics over the past few decades. Moreover, the notable growth of 3D printing has facilitated pharmaceutical applications, enabling the development of customized drug screening and drug delivery systems for individual patients, breaking away from conventional approaches that primarily rely on transgenic animal experiments and mass production. This review provides an extensive overview of 3D printing research applied to drug screening and drug delivery systems that represent pharmaceutical applications. We classify several elements required by each application for advanced pharmaceutical techniques and briefly describe state-of-the-art 3D printing technology consisting of cells, bioinks, and printing strategies that satisfy requirements. Furthermore, we discuss the limitations of traditional approaches by providing concrete examples of drug screening (organoid, organ-on-a-chip, and tissue/organ equivalent) and drug delivery systems (oral/vaginal/rectal and transdermal/surgical drug delivery), followed by the introduction of recent pharmaceutical investigations using 3D printing-based strategies to overcome these challenges.
Collapse
Affiliation(s)
- Ge Gao
- Institute of Engineering Medicine, Beijing Institute of Technology, No. 5, South Street, Zhongguancun, Haidian District, Beijing 100081, China;
| | - Minjun Ahn
- Department of Mechanical Engineering, POSTECH, 77 Cheongam-ro, Nam-gu, Pohang 37673, Kyungbuk, Korea; (M.A.); (W.-W.C.)
| | - Won-Woo Cho
- Department of Mechanical Engineering, POSTECH, 77 Cheongam-ro, Nam-gu, Pohang 37673, Kyungbuk, Korea; (M.A.); (W.-W.C.)
| | - Byoung-Soo Kim
- School of Biomedical Convergence Engineering, Pusan National University, 49 Busandaehak-ro, Mulgeum-eup, Yangsan 50612, Kyungbuk, Korea
| | - Dong-Woo Cho
- Department of Mechanical Engineering, POSTECH, 77 Cheongam-ro, Nam-gu, Pohang 37673, Kyungbuk, Korea; (M.A.); (W.-W.C.)
| |
Collapse
|
18
|
Thitiset T, Damrongsakkul S, Yodmuang S, Leeanansaksiri W, Apinun J, Honsawek S. A novel gelatin/chitooligosaccharide/demineralized bone matrix composite scaffold and periosteum-derived mesenchymal stem cells for bone tissue engineering. Biomater Res 2021; 25:19. [PMID: 34134780 PMCID: PMC8207659 DOI: 10.1186/s40824-021-00220-y] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Accepted: 05/30/2021] [Indexed: 01/05/2023] Open
Abstract
Background A novel biodegradable scaffold including gelatin (G), chitooligosaccharide (COS), and demineralized bone matrix (DBM) could play a significant part in bone tissue engineering. The present study aimed to investigate the biological characteristics of composite scaffolds in combination of G, COS, and DBM for in vitro cell culture and in vivo animal bioassays. Methods Three-dimensional scaffolds from the mixture of G, COS, and DBM were fabricated into 3 groups, namely, G, GC, and GCD using a lyophilization technique. The scaffolds were cultured with mesenchymal stem cells (MSCs) for 4 weeks to determine biological responses such as cell attachment and cell proliferation, alkaline phosphatase (ALP) activity, calcium deposition, cell morphology, and cell surface elemental composition. For the in vivo bioassay, G, GC, and GCD, acellular scaffolds were implanted subcutaneously in 8-week-old male Wistar rats for 4 weeks and 8 weeks. The explants were assessed for new bone formation using hematoxylin and eosin (H&E) staining and von Kossa staining. Results The MSCs could attach and proliferate on all three groups of scaffolds. Interestingly, the ALP activity of MSCs reached the greatest value on day 7 after cultured on the scaffolds, whereas the calcium assay displayed the highest level of calcium in MSCs on day 28. Furthermore, weight percentages of calcium and phosphorus on the surface of MSCs after cultivation on the GCD scaffolds increased when compared to those on other scaffolds. The scanning electron microscopy images showed that MSCs attached and proliferated on the scaffold surface thoroughly over the cultivation time. Mineral crystal aggregation was evident in GC and greatly in GCD scaffolds. H&E staining illustrated that G, GC, and GCD scaffolds displayed osteoid after 4 weeks of implantation and von Kossa staining confirmed the mineralization at 8 weeks in G, GC, and GCD scaffolds. Conclusion The MSCs cultured in GCD scaffolds revealed greater osteogenic differentiation than those cultured in G and GC scaffolds. Additionally, the G, GC, and GCD scaffolds could promote in vivo ectopic bone formation in rat model. The GCD scaffolds exhibited maximum osteoinductive capability compared with others and may be potentially used for bone regeneration.
Collapse
Affiliation(s)
- Thakoon Thitiset
- Biomedical Engineering Program, Faculty of Engineering, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Siriporn Damrongsakkul
- Department of Chemical Engineering, Biomaterial Engineering for Medical and Health Research Unit, Faculty of Engineering, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Supansa Yodmuang
- Research Affairs, Faculty of Medicine, Chulalongkorn University, Excellence Center for Advanced Therapy Medicinal Products, King Chulalongkorn Memorial Hospital, Bangkok, 10330, Thailand
| | - Wilairat Leeanansaksiri
- School of Preclinic, Institute of Science, Suranaree University of Technology, 111 University Avenue, Muang, Nakhon Ratchasima, 30000, Thailand
| | - Jirun Apinun
- Department of Orthopaedics, Vinai Parkpian Orthopaedic Research Center, Faculty of Medicine, Chulalongkorn University, Bangkok 10330, Thailand
| | - Sittisak Honsawek
- Department of Biochemistry, Osteoarthritis and Musculoskeleton Research Unit, Faculty of Medicine, Chulalongkorn University, Rama IV road, Pathumwan, Bangkok, 10330, Thailand.
| |
Collapse
|
19
|
Šimoliūnas E, Kantakevičius P, Kalvaitytė M, Bagdzevičiūtė L, Alksnė M, Baltriukienė D. DNA-DAPI Interaction-Based Method for Cell Proliferation Rate Evaluation in 3D Structures. Curr Issues Mol Biol 2021; 43:251-263. [PMID: 34070775 PMCID: PMC8929038 DOI: 10.3390/cimb43010021] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Revised: 05/04/2021] [Accepted: 05/28/2021] [Indexed: 12/12/2022] Open
Abstract
Effective cell number monitoring throughout the three-dimensional (3D) scaffold is a key factor in tissue engineering. There are many methods developed to evaluate cell number in 2D environments; however, they often encounter limitations in 3D. Therefore, there is a demand for reliable methods to measure cell proliferation in 3D surroundings. Here, we report a novel technique for the DNA content-based evaluation of cell proliferation using DNA-binding dye DAPI. We demonstrated the method's compatibility with four different cell cultures: cancer lines MCF-7 and MH-22a, embryonic fibroblast cell line Swiss 3T3, and primary mesenchymal stem cell culture isolated from rat's incisors. The DAPI based method was able to successfully evaluate cell proliferation in 2D, 2.5D, and 3D environments. Even though the proposed method does not discriminate between viable and dead cells, it might give a convenient snapshot of the cell number at a given time point. This should help to more reliably evaluate various processes proceeding in 2.5D and 3D cultures.
Collapse
Affiliation(s)
- Egidijus Šimoliūnas
- Life Sciences Center, Department of Biological Models, Institute of Biochemistry, Vilnius University, LT-10257 Vilnius, Lithuania; (P.K.); (M.K.); (L.B.); (M.A.); (D.B.)
| | - Paulius Kantakevičius
- Life Sciences Center, Department of Biological Models, Institute of Biochemistry, Vilnius University, LT-10257 Vilnius, Lithuania; (P.K.); (M.K.); (L.B.); (M.A.); (D.B.)
- School of Biological Sciences, Faculty of Biology, Medicine and Health, The Univesity of Manchester, Manchester M13 9PL, UK
| | - Miglė Kalvaitytė
- Life Sciences Center, Department of Biological Models, Institute of Biochemistry, Vilnius University, LT-10257 Vilnius, Lithuania; (P.K.); (M.K.); (L.B.); (M.A.); (D.B.)
| | - Lina Bagdzevičiūtė
- Life Sciences Center, Department of Biological Models, Institute of Biochemistry, Vilnius University, LT-10257 Vilnius, Lithuania; (P.K.); (M.K.); (L.B.); (M.A.); (D.B.)
| | - Milda Alksnė
- Life Sciences Center, Department of Biological Models, Institute of Biochemistry, Vilnius University, LT-10257 Vilnius, Lithuania; (P.K.); (M.K.); (L.B.); (M.A.); (D.B.)
| | - Daiva Baltriukienė
- Life Sciences Center, Department of Biological Models, Institute of Biochemistry, Vilnius University, LT-10257 Vilnius, Lithuania; (P.K.); (M.K.); (L.B.); (M.A.); (D.B.)
| |
Collapse
|
20
|
Evaluation of the biocompatibility of a PVA/SA scaffold with a human gingival fibroblast (HGF) by using electrochemical impedance spectroscopy. Bioelectrochemistry 2020; 131:107386. [DOI: 10.1016/j.bioelechem.2019.107386] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Revised: 09/07/2019] [Accepted: 09/09/2019] [Indexed: 12/16/2022]
|
21
|
Tatar AS, Jurj A, Tomuleasa C, Florea A, Berindan-Neagoe I, Cialla-May D, Popp J, Astilean S, Boca S. CD19-targeted, Raman tagged gold nanourchins as theranostic agents against acute lymphoblastic leukemia. Colloids Surf B Biointerfaces 2019; 184:110478. [PMID: 31541890 DOI: 10.1016/j.colsurfb.2019.110478] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2019] [Revised: 08/15/2019] [Accepted: 08/29/2019] [Indexed: 10/26/2022]
Abstract
The incidence of Acute Lymphoblastic Leukemia (ALL) is increasing globally, and it is being clinically addressed by chemotherapy, followed by immunotherapy and stem cell transplantation, all with potential life-threatening toxicities. In the need for more effective therapeutics, newly developed disease-targeted nanocompounds can thus hold real potential. In this paper, we propose a novel nanoparticle-based immunotherapeutic agent against ALL, consisting of antiCD19 antibody-conjugated, polyethylene glycol (PEG)-biocompatibilized, and Nile Blue (NB) Raman reporter-tagged gold nanoparticles of urchin-like shape (GNUs), that have a plasmonic response in the Near Infrared (NIR) spectral range. Transmission electron microscopy (TEM) images of particle-incubated CD19-positive (CD19(+)) CCRF-SB cells show that the antiCD19-PEG-NB-GNU nanocomplex is able to recognize the CD19 B-cell-specific antigen, which is a prerequisite for targeted therapy. The therapeutic effect of the particles is confirmed by cell counting, combined with cell cycle analysis by flow cytometry and MTS assay, which additionally offer insights into their mechanisms of action. Specifically, antiCD19-PEG-NB-GNUs proved superior cytotoxic effect against CCRF-SB cells when compared with the free antibody, by reducing the overall viability below 18% after 7 days treatment at a particle-bound antibody concentration of 0.17 ng/μl. Moreover, by combining their remarkable plasmonic properties with the possibility of Raman tagging, the proposed nanoparticles can also serve as spectroscopic imaging agents inside living cells, which validates their theranostic potential in the field of hematological oncology.
Collapse
Affiliation(s)
- Andra-Sorina Tatar
- Nanobiophotonics and Laser Microspectroscopy Center, Interdisciplinary Research Institute on Bio-Nano-Sciences, Babes-Bolyai University, T. Laurian 42, 400271 Cluj-Napoca, Romania; Faculty of Physics, Babes-Bolyai University, Kogalniceanu 1, 400084 Cluj-Napoca, Romania
| | - Ancuta Jurj
- Research Center for Functional Genomics and Translational Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, Marinescu Street 23, 400337 Cluj-Napoca, Romania
| | - Ciprian Tomuleasa
- Research Center for Functional Genomics and Translational Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, Marinescu Street 23, 400337 Cluj-Napoca, Romania; Department of Hematology, Oncologic Institute Prof. Dr. Ion Chiricuta, Republicii Street 34-36, 400015 Cluj-Napoca, Romania
| | - Adrian Florea
- Department of Cell and Molecular Biology, Iuliu Hatieganu University of Medicine and Pharmacy, Pasteur Street 6, 400349 Cluj-Napoca, Romania
| | - Ioana Berindan-Neagoe
- Research Center for Functional Genomics and Translational Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, Marinescu Street 23, 400337 Cluj-Napoca, Romania
| | - Dana Cialla-May
- Leibniz Institute of Photonic Technology, Jena (a member of Leibniz Health Technologies), Albert-Einstein-Str 9, 07745 Jena, Germany
| | - Juergen Popp
- Leibniz Institute of Photonic Technology, Jena (a member of Leibniz Health Technologies), Albert-Einstein-Str 9, 07745 Jena, Germany; Friedrich-Schiller-University, Institute of Physical Chemistry and Abbe Center of Photonics, Helmholtzweg 4, 07743 Jena, Germany
| | - Simion Astilean
- Nanobiophotonics and Laser Microspectroscopy Center, Interdisciplinary Research Institute on Bio-Nano-Sciences, Babes-Bolyai University, T. Laurian 42, 400271 Cluj-Napoca, Romania; Faculty of Physics, Babes-Bolyai University, Kogalniceanu 1, 400084 Cluj-Napoca, Romania
| | - Sanda Boca
- Nanobiophotonics and Laser Microspectroscopy Center, Interdisciplinary Research Institute on Bio-Nano-Sciences, Babes-Bolyai University, T. Laurian 42, 400271 Cluj-Napoca, Romania.
| |
Collapse
|
22
|
Quantification of fixed adherent cells using a strong enhancer of the fluorescence of DNA dyes. Sci Rep 2019; 9:8701. [PMID: 31213648 PMCID: PMC6581942 DOI: 10.1038/s41598-019-45217-9] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Accepted: 06/04/2019] [Indexed: 01/08/2023] Open
Abstract
Cell quantification is widely used in basic or applied research. The current sensitive methods of cell quantification are exclusively based on the analysis of non-fixed cells and do not allow the simultaneous detection of various cellular components. A fast, sensitive and cheap method of the quantification of fixed adherent cells is described here. It is based on the incubation of DAPI- or Hoechst 33342-stained cells in a solution containing SDS. The presence of SDS results in the quick de-staining of DNA and simultaneously, in an up-to-1,000-fold increase of the fluorescence intensity of the used dyes. This increase can be attributed to the micelle formation of SDS. The method is sufficiently sensitive to reveal around 50–70 human diploid cells. It is compatible with immunocytochemical detections, the detection of DNA replication and cell cycle analysis by image cytometry. The procedure was successfully tested for the analysis of cytotoxicity. The method is suitable for the quantification of cells exhibiting low metabolic activity including senescent cells. The developed procedure provides high linearity and the signal is high for at least 20 days at room temperature. Only around 90 to 120 minutes is required for the procedure’s completion.
Collapse
|
23
|
Transfection of autologous host cells in vivo using gene activated collagen scaffolds incorporating star-polypeptides. J Control Release 2019; 304:191-203. [DOI: 10.1016/j.jconrel.2019.05.009] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2019] [Revised: 05/01/2019] [Accepted: 05/04/2019] [Indexed: 01/08/2023]
|
24
|
Ngo LP, Chan TK, Ge J, Samson LD, Engelward BP. Microcolony Size Distribution Assay Enables High-Throughput Cell Survival Quantitation. Cell Rep 2019; 26:1668-1678.e4. [PMID: 30726746 PMCID: PMC6431241 DOI: 10.1016/j.celrep.2019.01.053] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2018] [Revised: 11/02/2018] [Accepted: 01/14/2019] [Indexed: 01/14/2023] Open
Abstract
Cell survival is a critical and ubiquitous endpoint in biology. The broadly accepted colony formation assay (CFA) directly measures a cell's ability to divide; however, it takes weeks to perform and is incompatible with high-throughput screening (HTS) technologies. Here, we describe the MicroColonyChip, which exploits microwell array technology to create an array of colonies. Unlike the CFA, where visible colonies are counted by eye, using fluorescence microscopy, microcolonies can be analyzed in days rather than weeks. Using automated analysis of microcolony size distributions, the MicroColonyChip achieves comparable sensitivity to the CFA (and greater sensitivity than the 2,3-bis-(2-methoxy-4-nitro-5-sulfophenyl)-2H-tetrazolium-5-carboxanilide [XTT] assay). Compared to CellTiter-Glo, the MicroColonyChip is as sensitive and also robust to artifacts caused by differences in initial cell seeding density. We demonstrate efficacy via studies of radiosensitivity and chemosensitivity and show that the approach is amenable to multiplexing. We conclude that the MicroColonyChip is a rapid and automated alternative for cell survival quantitation.
Collapse
Affiliation(s)
- Le P Ngo
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Tze Khee Chan
- Singapore-MIT Alliance for Research and Technology, Infectious Diseases IRG, Singapore 117600, Singapore
| | - Jing Ge
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Leona D Samson
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA; Department of Biology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Bevin P Engelward
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.
| |
Collapse
|
25
|
Hadi LM, Yaghini E, Stamati K, Loizidou M, MacRobert AJ. Therapeutic enhancement of a cytotoxic agent using photochemical internalisation in 3D compressed collagen constructs of ovarian cancer. Acta Biomater 2018; 81:80-92. [PMID: 30267880 DOI: 10.1016/j.actbio.2018.09.041] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Revised: 09/17/2018] [Accepted: 09/25/2018] [Indexed: 01/19/2023]
Abstract
Photochemical internalisation (PCI) is a method for enhancing delivery of drugs to their intracellular target sites of action. In this study we investigated the efficacy of PCI using a porphyrin photosensitiser and a cytotoxic agent on spheroid and non-spheroid compressed collagen 3D constructs of ovarian cancer versus conventional 2D culture. The therapeutic responses of two human carcinoma cell lines (SKOV3 and HEY) were compared using a range of assays including optical imaging. The treatment was shown to be effective in non-spheroid constructs of both cell lines causing a significant and synergistic reduction in cell viability measured at 48 or 96 h post-illumination. In the larger spheroid constructs, PCI was still effective but required higher saporin and photosensitiser doses. Moreover, in contrast to the 2D and non-spheroid experiments, where comparable efficacy was found for the two cell lines, HEY spheroid constructs were found to be more susceptible to PCI and a lower dose of saporin could be used. PCI treatment was observed to induce death principally by apoptosis in the 3D constructs compared to the mostly necrotic cell death caused by PDT. At low oxygen levels (1%) both PDT and PCI were significantly less effective in the constructs. STATEMENT OF SIGNIFICANCE: Assessment of new drugs or delivery systems for cancer therapy prior to conducting in vivo studies often relies on the use of conventional 2D cell culture, however 3D cancer constructs can provide more physiologically relevant information owing to their 3D architecture and the presence of an extracellular matrix. This study investigates the efficacy of Photochemical Internalisation mediated drug delivery in 3D constructs. In 3D cultures, both oxygen and drug delivery to the cells are limited by diffusion through the extracellular matrix unlike 2D models, and in our model we have used compressed collagen constructs where the density of collagen mimics physiological values. These 3D constructs are therefore well suited to studying drug delivery using PCI. Our study highlights the potential of these constructs for identifying differences in therapeutic response to PCI of two ovarian carcinoma lines.
Collapse
|
26
|
Gretzinger S, Beckert N, Gleadall A, Lee-Thedieck C, Hubbuch J. 3D bioprinting – Flow cytometry as analytical strategy for 3D cell structures. ACTA ACUST UNITED AC 2018. [DOI: 10.1016/j.bprint.2018.e00023] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
27
|
Delrue I, Pan Q, Baczmanska AK, Callens BW, Verdoodt LLM. Determination of the Selection Capacity of Antibiotics for Gene Selection. Biotechnol J 2018; 13:e1700747. [DOI: 10.1002/biot.201700747] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2017] [Revised: 01/16/2018] [Indexed: 11/11/2022]
Affiliation(s)
- Iris Delrue
- Department of Cell Culture; TOKU-E EU NV; Technologiepark 4 9052 Zwijnaarde Belgium
| | - Qiubao Pan
- Department of Enzyme Optimization for Industrial Microorganisms; TOKU-E Biotech Laboratory Pte Ltd; 1100 Lower Delta Road Singapore 169206e
| | - Anna K. Baczmanska
- Department of Cell Culture; TOKU-E EU NV; Technologiepark 4 9052 Zwijnaarde Belgium
| | - Bram W. Callens
- Department of Cell Culture; TOKU-E EU NV; Technologiepark 4 9052 Zwijnaarde Belgium
| | | |
Collapse
|
28
|
Hoberman AR, Cirino C, McCarthy MB, Cote MP, Pauzenberger L, Beitzel K, Mazzocca AD, Dyrna F. Bone Marrow-Derived Mesenchymal Stromal Cells Enhanced by Platelet-Rich Plasma Maintain Adhesion to Scaffolds in Arthroscopic Simulation. Arthroscopy 2018; 34:872-881. [PMID: 29146168 DOI: 10.1016/j.arthro.2017.08.291] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/09/2016] [Revised: 08/24/2017] [Accepted: 08/25/2017] [Indexed: 02/02/2023]
Abstract
PURPOSE To assess the response of bone marrow-derived mesenchymal stromal cells (bMSCs) enhanced by platelet-rich plasma (PRP) in the setting of a normal human tendon (NHT), a demineralized bone matrix (DBM), and a fibrin scaffold (FS) with simulated arthroscopic mechanical washout stress. METHODS Bone marrow was aspirated from the humeral head and concentrated. BMSCs were counted, plated, and grown to confluence. Cells were seeded onto 3 different scaffolds: (1) NHT, (2) DBM, and (3) FS. Each scaffold was treated with a combination of (+)/(-) PRP and (+)/(-) arthroscopic washout simulation. A period of 60 minutes was allotted before arthroscopic washout. Adhesion, proliferation, and differentiation assays were performed to assess cellular activity in each condition. RESULTS Significant differences were seen in mesenchymal stromal cell adhesion, proliferation, and differentiation among the scaffolds. DBM and FS showed superior results to NHT for cell adhesion, proliferation, and differentiation. PRP significantly enhanced cellular adhesion, proliferation, and differentiation. Arthroscopic simulation did not significantly decrease bMSC adhesion. CONCLUSIONS We found that the type of scaffold impacts bMSCs' behavior. Both scaffolds (DBM and FS) were superior to NHT. The use of an arthroscopic simulator did not significantly decrease the adhesion of bMSCs to the scaffolds nor did it decrease their biologic differentiation potential. In addition, PRP enhanced cellular adhesion, proliferation, and differentiation. CLINICAL RELEVANCE Improved healing after tendon repair can lead to better clinical outcomes. BMSCs are attractive for enhancing healing given their accessibility and regenerative potential. Application of bMSCs using scaffolds as cell carriers relies on arthroscopic feasibility.
Collapse
Affiliation(s)
- Alexander R Hoberman
- Department of Orthopaedic Surgery, University of Connecticut, Farmington, Connecticut, U.S.A..
| | - Carl Cirino
- Department of Orthopaedic Surgery, University of Connecticut, Farmington, Connecticut, U.S.A
| | - Mary Beth McCarthy
- Department of Orthopaedic Surgery, University of Connecticut, Farmington, Connecticut, U.S.A
| | - Mark P Cote
- Department of Orthopaedic Surgery, University of Connecticut, Farmington, Connecticut, U.S.A
| | - Leo Pauzenberger
- Department of Orthopaedic Sports Medicine, Technical University, Munich, Germany
| | - Knut Beitzel
- Department of Orthopaedic Sports Medicine, Technical University, Munich, Germany
| | - Augustus D Mazzocca
- Department of Orthopaedic Surgery, University of Connecticut, Farmington, Connecticut, U.S.A
| | - Felix Dyrna
- Department of Orthopaedic Sports Medicine, Technical University, Munich, Germany
| |
Collapse
|
29
|
Hibbitts A, O'Leary C. Emerging Nanomedicine Therapies to Counter the Rise of Methicillin-Resistant Staphylococcus aureus. MATERIALS (BASEL, SWITZERLAND) 2018; 11:E321. [PMID: 29473883 PMCID: PMC5849018 DOI: 10.3390/ma11020321] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/19/2018] [Revised: 02/14/2018] [Accepted: 02/19/2018] [Indexed: 12/25/2022]
Abstract
In a recent report, the World Health Organisation (WHO) classified antibiotic resistance as one of the greatest threats to global health, food security, and development. Methicillin-resistant Staphylococcus aureus (MRSA) remains at the core of this threat, with persistent and resilient strains detectable in up to 90% of S. aureus infections. Unfortunately, there is a lack of novel antibiotics reaching the clinic to address the significant morbidity and mortality that MRSA is responsible for. Recently, nanomedicine strategies have emerged as a promising therapy to combat the rise of MRSA. However, these approaches have been wide-ranging in design, with few attempts to compare studies across scientific and clinical disciplines. This review seeks to reconcile this discrepancy in the literature, with specific focus on the mechanisms of MRSA infection and how they can be exploited by bioactive molecules that are delivered by nanomedicines, in addition to utilisation of the nanomaterials themselves as antibacterial agents. Finally, we discuss targeting MRSA biofilms using nano-patterning technologies and comment on future opportunities and challenges for MRSA treatment using nanomedicine.
Collapse
Affiliation(s)
- Alan Hibbitts
- Tissue Engineering Research Group, Department of Anatomy, Royal College of Surgeons in Ireland, 123 St. Stephen's Green, Dublin 2, Ireland.
- Trinity Centre of Bioengineering, Trinity College Dublin, 152-160 Pearse Street, Dublin 2, Ireland.
- Advanced Materials and Bioengineering Research (AMBER) Centre, Royal College of Surgeons in Ireland and Trinity College Dublin, Dublin 2, Ireland.
| | - Cian O'Leary
- Tissue Engineering Research Group, Department of Anatomy, Royal College of Surgeons in Ireland, 123 St. Stephen's Green, Dublin 2, Ireland.
- Trinity Centre of Bioengineering, Trinity College Dublin, 152-160 Pearse Street, Dublin 2, Ireland.
- Advanced Materials and Bioengineering Research (AMBER) Centre, Royal College of Surgeons in Ireland and Trinity College Dublin, Dublin 2, Ireland.
- School of Pharmacy, Royal College of Surgeons in Ireland, 123 St. Stephen's Green, Dublin 2, Ireland.
| |
Collapse
|
30
|
Liao JCY, He M, Gan AWT, Wen F, Tan LP, Chong AKS. The effects of bi-functional anti-adhesion scaffolds on flexor tendon healing in a rabbit model. J Biomed Mater Res B Appl Biomater 2018; 106:2605-2614. [PMID: 29424966 DOI: 10.1002/jbm.b.34077] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2016] [Revised: 11/11/2017] [Accepted: 12/24/2017] [Indexed: 12/17/2022]
Abstract
Progressive tendon adhesion is a major challenge in flexor tendon repair. The authors developed a bifunctional anti-adhesion scaffold and hypothesized that its application would reduce adhesion formation and deliver mesenchymal stem cells (MSCs) to enhance tendon healing. The scaffold was fabricated by an electrospinning machine before surface modification. The flexor tendons of 29 New Zealand rabbits underwent surgical repair and randomized to control, scaffold and scaffold loaded with MSC group. At 3 and 8 weeks post-surgery, range of motion (ROM), biomechanical properties, and histology were examined. There was no significant increase in ROM and biomechanical properties between the three groups. The histology showed successful delivery of MSCs but no significant difference in nuclear morphometry. This barrier delivers and retains MSCs within the tendon repair site. However, its sheet form and wrapping around the repair site may not be optimal for tendon healing. © 2018 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 106B: 2605-2614, 2018.
Collapse
Affiliation(s)
- Janice C Y Liao
- Department of Hand and Reconstructive Microsurgery, National University Hospital, 1E Kent Ridge Road, NUHS Tower Block, Level 11, Singapore, 119228, Singapore
| | - Min He
- Department of Hand and Reconstructive Microsurgery, National University Hospital, 1E Kent Ridge Road, NUHS Tower Block, Level 11, Singapore, 119228, Singapore
| | - Aaron W T Gan
- Department of Hand and Reconstructive Microsurgery, National University Hospital, 1E Kent Ridge Road, NUHS Tower Block, Level 11, Singapore, 119228, Singapore
| | - Feng Wen
- School of Materials Science and Engineering, Nanyang Technological University, Block No. 4.1, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Lay Poh Tan
- School of Materials Science and Engineering, Nanyang Technological University, Block No. 4.1, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Alphonsus K S Chong
- Department of Hand and Reconstructive Microsurgery, National University Hospital, 1E Kent Ridge Road, NUHS Tower Block, Level 11, Singapore, 119228, Singapore.,Department of Orthopaedic Surgery, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| |
Collapse
|
31
|
Gupta D, Grant DM, Zakir Hossain KM, Ahmed I, Sottile V. Role of geometrical cues in bone marrow-derived mesenchymal stem cell survival, growth and osteogenic differentiation. J Biomater Appl 2017; 32:906-919. [DOI: 10.1177/0885328217745699] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Dhanak Gupta
- Wolfson Centre for Stem Cells, Tissue Engineering and Modelling (STEM), School of Medicine, University of Nottingham, Nottingham, UK
- Advanced Materials Research Group, Faculty of Engineering, University of Nottingham, UK
| | - David M Grant
- Advanced Materials Research Group, Faculty of Engineering, University of Nottingham, UK
| | - Kazi M Zakir Hossain
- Advanced Materials Research Group, Faculty of Engineering, University of Nottingham, UK
| | - Ifty Ahmed
- Advanced Materials Research Group, Faculty of Engineering, University of Nottingham, UK
| | - Virginie Sottile
- Wolfson Centre for Stem Cells, Tissue Engineering and Modelling (STEM), School of Medicine, University of Nottingham, Nottingham, UK
| |
Collapse
|
32
|
Live cell imaging reveals different modes of cytotoxic action of extracts derived from commonly used luting cements. Arch Oral Biol 2017; 86:108-115. [PMID: 29223023 DOI: 10.1016/j.archoralbio.2017.11.011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2017] [Revised: 11/19/2017] [Accepted: 11/26/2017] [Indexed: 01/02/2023]
Abstract
OBJECTIVE To compare cytotoxicity of extracts derived from commonly used luting cements: Hoffmann's Zinc Phosphate (ZPC), GC Fuji Plus Resin Modified Glass Ionomer (RMGIC) and 3M ESPE RelyX Unicem Resin Cement (RC) on primary human gingival fibroblasts (HGFs). DESIGN HGFs were exposed to different concentrations of the ZPC, RMGIC and RC extracts. The cytotoxicity was assessed with the PrestoBlue Cell Viability Reagent and viable cells were counted by a haemocytometer using the trypan blue exclusion test. In order to determine the primary mechanism of the cell death induced by extracts from different luting cements, the real-time monitoring of caspase-3/-7 activity and membrane integrity of cells was employed. RESULTS The extracts from the RMGIC and ZPC decreased the metabolic activity and numbers of viable cells. Unexpectedly, the extracts from the RC evoked only small effects on the metabolic activity of HGFs with a decreasing number of viable cells in a dose-and time-dependent manner. The live cell imaging revealed that the apoptosis was the primary mechanism of a cell death induced by the extracts derived from the RMGIC, whereas the extracts from the RC and ZPC induced a cell death through a necrotic and caspase-independent pathway. CONCLUSIONS The apoptosis was the primary mechanism of the cell death induced by the extracts derived from the RMGIC, whereas the extracts from the RC and ZPC induced a cell death via a necrotic pathway. We suggest that metabolic assays commonly used to assess the cytotoxicity of luting cements should be validated by alternative methods.
Collapse
|
33
|
Lv D, Hu Z, Lu L, Lu H, Xu X. Three-dimensional cell culture: A powerful tool in tumor research and drug discovery. Oncol Lett 2017; 14:6999-7010. [PMID: 29344128 DOI: 10.3892/ol.2017.7134] [Citation(s) in RCA: 160] [Impact Index Per Article: 22.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2016] [Accepted: 07/27/2017] [Indexed: 12/31/2022] Open
Abstract
In previous years, three-dimensional (3D) cell culture technology has become a focus of research in tumor cell biology, using a variety of methods and materials to mimic the in vivo microenvironment of cultured tumor cells ex vivo. These 3D tumor cells have demonstrated numerous different characteristics compared with traditional two-dimensional (2D) culture. 3D cell culture provides a useful platform for further identifying the biological characteristics of tumor cells, particularly in the drug sensitivity area of the key points of translational medicine. It promises to be a bridge between traditional 2D culture and animal experiments, and is of great importance for further research in the field of tumor biology. In the present review, previous 3D cell culture applications, focusing on anti-tumor drug susceptibility testing, are summarized.
Collapse
Affiliation(s)
- Donglai Lv
- Department of Clinical Oncology, The 105 Hospital of The People's Liberation Army, Hefei, Anhui 230031, P.R. China
| | - Zongtao Hu
- Department of Clinical Oncology, The 105 Hospital of The People's Liberation Army, Hefei, Anhui 230031, P.R. China
| | - Lin Lu
- Department of Clinical Oncology, The 105 Hospital of The People's Liberation Army, Hefei, Anhui 230031, P.R. China
| | - Husheng Lu
- Department of Clinical Oncology, The 105 Hospital of The People's Liberation Army, Hefei, Anhui 230031, P.R. China
| | - Xiuli Xu
- Department of Clinical Oncology, The 105 Hospital of The People's Liberation Army, Hefei, Anhui 230031, P.R. China
| |
Collapse
|
34
|
Claudio-Rizo JA, Rangel-Argote M, Castellano LE, Delgado J, Mata-Mata JL, Mendoza-Novelo B. Influence of residual composition on the structure and properties of extracellular matrix derived hydrogels. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017. [PMID: 28629082 DOI: 10.1016/j.msec.2017.05.118] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
In this work, hydrolysates of extracellular matrix (hECM) were obtained from rat tail tendon (TR), bovine Achilles tendon (TAB), porcine small intestinal submucosa (SIS) and bovine pericardium (PB), and they were polymerized to generate ECM hydrogels. The composition of hECM was evaluated by quantifying the content of sulphated glycosaminoglycans (sGAG), fibronectin and laminin. The polymerization process, structure, physicochemical properties, in vitro degradation and biocompatibility were studied and related to their composition. The results indicated that the hECM derived from SIS and PB were significantly richer in sGAG, fibronectin and laminin, than those derived from TAB and TR. These differences in hECM composition influenced the polymerization and the structural characteristics of the fibrillar gel network. Consequently, the swelling, mechanics and degradation of the hydrogels showed a direct relationship with the remaining composition. Moreover, the cytocompatibility and the secretion of transforming growth factor beta-1 (TGF-β1) by macrophages were enhanced in hydrogels with the highest residual content of ECM biomolecules. The results of this work evidenced the role of the ECM molecules remaining after both decellularization and hydrolysis steps to produce tissue derived hydrogels with structure and properties tailored to enhance their performance in tissue engineering and regenerative medicine applications.
Collapse
Affiliation(s)
- Jesús A Claudio-Rizo
- Departamento de Ingenierías Química, Electrónica y Biomédica, DCI, Universidad de Guanajuato, Loma del Bosque 103, 37150 León, Gto., Mexico; Departamento de Química, DCNE, Universidad de Guanajuato, Noria alta s/n, 36050 Guanajuato, Gto., Mexico; Ingeniería en Biotecnología, Universidad Politécnica de Pénjamo, Carretera Irapuato-La Piedad Km 44, 36921, Pénjamo, Gto., Mexico
| | - Magdalena Rangel-Argote
- Departamento de Ingenierías Química, Electrónica y Biomédica, DCI, Universidad de Guanajuato, Loma del Bosque 103, 37150 León, Gto., Mexico; Departamento de Química, DCNE, Universidad de Guanajuato, Noria alta s/n, 36050 Guanajuato, Gto., Mexico
| | - Laura E Castellano
- Departamento de Ingenierías Química, Electrónica y Biomédica, DCI, Universidad de Guanajuato, Loma del Bosque 103, 37150 León, Gto., Mexico
| | - Jorge Delgado
- Departamento de Ingenierías Química, Electrónica y Biomédica, DCI, Universidad de Guanajuato, Loma del Bosque 103, 37150 León, Gto., Mexico
| | - José L Mata-Mata
- Departamento de Química, DCNE, Universidad de Guanajuato, Noria alta s/n, 36050 Guanajuato, Gto., Mexico.
| | - Birzabith Mendoza-Novelo
- Departamento de Ingenierías Química, Electrónica y Biomédica, DCI, Universidad de Guanajuato, Loma del Bosque 103, 37150 León, Gto., Mexico.
| |
Collapse
|
35
|
Alshomer F, Chaves C, Serra T, Ahmed I, Kalaskar DM. Micropatterning of nanocomposite polymer scaffolds using sacrificial phosphate glass fibers for tendon tissue engineering applications. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2017; 13:1267-1277. [DOI: 10.1016/j.nano.2017.01.006] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2016] [Revised: 12/12/2016] [Accepted: 01/04/2017] [Indexed: 12/19/2022]
|
36
|
Rashad A, Mustafa K, Heggset EB, Syverud K. Cytocompatibility of Wood-Derived Cellulose Nanofibril Hydrogels with Different Surface Chemistry. Biomacromolecules 2017; 18:1238-1248. [DOI: 10.1021/acs.biomac.6b01911] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Ahmad Rashad
- Department
of Clinical Dentistry, University of Bergen, N-5020 Bergen, Norway
| | - Kamal Mustafa
- Department
of Clinical Dentistry, University of Bergen, N-5020 Bergen, Norway
| | | | - Kristin Syverud
- Paper and Fiber Research Institute, NO-7491 Trondheim, Norway
- Department
of Chemical Engineering, Norwegian University of Science and Technology (NTNU), NO-7491 Trondheim, Norway
| |
Collapse
|
37
|
Uzarski JS, DiVito MD, Wertheim JA, Miller WM. Essential design considerations for the resazurin reduction assay to noninvasively quantify cell expansion within perfused extracellular matrix scaffolds. Biomaterials 2017; 129:163-175. [PMID: 28343003 DOI: 10.1016/j.biomaterials.2017.02.015] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2016] [Accepted: 02/11/2017] [Indexed: 12/29/2022]
Abstract
Precise measurement of cellularity within bioartificial tissues and extracellular matrix (ECM) scaffolds is necessary to augment rigorous characterization of cellular behavior, as accurate benchmarking of tissue function to cell number allows for comparison of data across experiments and between laboratories. Resazurin, a soluble dye that is reduced to highly fluorescent resorufin in proportion to the metabolic activity of a cell population, is a valuable, noninvasive tool to measure cell number. We investigated experimental conditions in which resazurin reduction is a reliable indicator of cellularity within three-dimensional (3D) ECM scaffolds. Using three renal cell populations, we demonstrate that correlation of viable cell numbers with the rate of resorufin generation may deviate from linearity at higher cell densities, lower resazurin working volumes, or longer incubation times that all contribute to depleting the pool of resazurin. In conclusion, while the resazurin reduction assay provides a powerful, noninvasive readout of metrics enumerating cellularity and growth within ECM scaffolds, assay conditions may strongly influence its applicability for accurate quantification of cell number. The approach and methodological recommendations presented herein may be used as a guide for application-specific optimization of this assay to obtain rigorous and accurate measurement of cellular content in bioengineered tissues.
Collapse
Affiliation(s)
- Joseph S Uzarski
- Comprehensive Transplant Center, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA; Department of Surgery, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Michael D DiVito
- Comprehensive Transplant Center, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA; Department of Surgery, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Jason A Wertheim
- Comprehensive Transplant Center, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA; Department of Surgery, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA; Department of Surgery, Jesse Brown VA Medical Center, Chicago, IL 60612, USA; Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, IL 60611, USA; Department of Biomedical Engineering, Northwestern University, Evanston, IL 60208, USA; Chemistry of Life Processes Institute, Northwestern University, Evanston, IL 60208, USA.
| | - William M Miller
- Chemistry of Life Processes Institute, Northwestern University, Evanston, IL 60208, USA; Department of Chemical and Biological Engineering, Northwestern University, Evanston, IL 60208, USA.
| |
Collapse
|
38
|
Morten BC, Scott RJ, Avery-Kiejda KA. Comparison of Three Different Methods for Determining Cell Proliferation in Breast Cancer Cell Lines. J Vis Exp 2016. [PMID: 27685661 DOI: 10.3791/54350] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
Abstract
Measuring cell proliferation can be performed by a number of different methods, each with varying levels of sensitivity, reproducibility and compatibility with high-throughput formatting. This protocol describes the use of three different methods for measuring cell proliferation in vitro including conventional hemocytometer counting chamber, a luminescence-based assay that utilizes the change in the metabolic activity of viable cells as a measure of the relative number of cells, and a multi-mode cell imager that measures cell number using a counting algorithm. Each method presents its own advantages and disadvantages for the measurement of cell proliferation, including time, cost and high-throughput compatibility. This protocol demonstrates that each method could accurately measure cell proliferation over time, and was sensitive to detect growth at differing cellular densities. Additionally, measurement of cell proliferation using a cell imager was able to provide further information such as morphology, confluence and allowed for a continual monitoring of cell proliferation over time. In conclusion, each method is capable of measuring cell proliferation, but the chosen method is user-dependent.
Collapse
Affiliation(s)
- Brianna C Morten
- Medical Genetics, Hunter Medical Research Institute; Priority Research Centre for Cancer, School of Biomedical Sciences and Pharmacy, Faculty of Health and Medicine, University of Newcastle
| | - Rodney J Scott
- Medical Genetics, Hunter Medical Research Institute; Priority Research Centre for Cancer, School of Biomedical Sciences and Pharmacy, Faculty of Health and Medicine, University of Newcastle; Pathology North, John Hunter Hospital
| | - Kelly A Avery-Kiejda
- Medical Genetics, Hunter Medical Research Institute; Priority Research Centre for Cancer, School of Biomedical Sciences and Pharmacy, Faculty of Health and Medicine, University of Newcastle;
| |
Collapse
|
39
|
Szulkin A, Szatmári T, Hjerpe A, Dobra K. Chemosensitivity and resistance testing in malignant effusions with focus on primary malignant mesothelioma and metastatic adenocarcinoma. Pleura Peritoneum 2016; 1:119-133. [PMID: 30911616 DOI: 10.1515/pp-2016-0013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2016] [Accepted: 08/22/2016] [Indexed: 12/24/2022] Open
Abstract
Cell based chemosensitivity and resistance testing is an attractive approach that offers functional measurement of drug response ex vivo with the ultimate goal to guide the choice of chemotherapy for various cancers. Thus, it has a great potential to select patients for the optimal treatment option, thereby offering a tool for personalized cancer therapy. Despite several decades of intensive scientific efforts ex-vivo tests are still not incorporated in the standard of care. Limited access to fresh tumor tissue, unsatisfactory models and single readout as endpoint constitute major hindrance. Thus, establishing and validating clinically useful and reliable model systems still remains a major challenge. Here we present malignant effusions as valuable sources for ex-vivo chemosensitivity and resistance testing. Accumulation of a malignant effusion in the pleura, peritoneum or pericardium is often the first diagnostic material for both primary malignant mesothelioma and a broad spectrum of metastatic adenocarcinoma originating from lung-, breast-, ovary- and gastro-intestinal organs as well as lymphoma. In contrast to biopsies, in these effusions malignant cells are easily accessible and often abundant. Effusion derived cells can occur dissociated or forming three-dimensional papillary structures that authentically recapitulate the biology of the corresponding tumor tissue and offer models for ex vivo testing. In addition, effusions have the advantage of being available prior to or concurrent with the pathological review, thus constituting an excellent source of viable cells for simultaneous molecular profiling, biomarker analysis and for establishing primary cells for studying tumor biology and resistance mechanisms. For a reliable test, however, a careful validation is needed, taking into account the inherited heterogeneity of malignant tumors, but also the complex interplay between malignant and benign cells, which are always present in this setting.
Collapse
Affiliation(s)
- Adam Szulkin
- Division of Pathology, Department of Laboratory Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Tünde Szatmári
- Division of Pathology, Department of Laboratory Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Anders Hjerpe
- Division of Pathology, Department of Laboratory Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Katalin Dobra
- Division of Pathology, Department of Laboratory Medicine, Karolinska Institutet, Stockholm, Sweden
| |
Collapse
|
40
|
A high-throughput in vitro ring assay for vasoactivity using magnetic 3D bioprinting. Sci Rep 2016; 6:30640. [PMID: 27477945 PMCID: PMC4967891 DOI: 10.1038/srep30640] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2016] [Accepted: 07/07/2016] [Indexed: 12/14/2022] Open
Abstract
Vasoactive liabilities are typically assayed using wire myography, which is limited by its high cost and low throughput. To meet the demand for higher throughput in vitro alternatives, this study introduces a magnetic 3D bioprinting-based vasoactivity assay. The principle behind this assay is the magnetic printing of vascular smooth muscle cells into 3D rings that functionally represent blood vessel segments, whose contraction can be altered by vasodilators and vasoconstrictors. A cost-effective imaging modality employing a mobile device is used to capture contraction with high throughput. The goal of this study was to validate ring contraction as a measure of vasoactivity, using a small panel of known vasoactive drugs. In vitro responses of the rings matched outcomes predicted by in vivo pharmacology, and were supported by immunohistochemistry. Altogether, this ring assay robustly models vasoactivity, which could meet the need for higher throughput in vitro alternatives.
Collapse
|
41
|
Baek N, Seo OW, Lee J, Hulme J, An SSA. Real-time monitoring of cisplatin cytotoxicity on three-dimensional spheroid tumor cells. DRUG DESIGN DEVELOPMENT AND THERAPY 2016; 10:2155-65. [PMID: 27445462 PMCID: PMC4938242 DOI: 10.2147/dddt.s108004] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Three-dimensional (3D) cell cultivation is a powerful technique for monitoring and understanding diverse cellular mechanisms in developmental cancer and neuronal biology, tissue engineering, and drug development. 3D systems could relate better to in vivo models than two-dimensional (2D) cultures. Several factors, such as cell type, survival rate, proliferation rate, and gene and protein expression patterns, determine whether a particular cell line can be adapted to a 3D system. The 3D system may overcome some of the limitations of 2D cultures in terms of cell–cell communication and cell networks, which are essential for understanding differentiation, structural organization, shape, and extended connections with other cells or organs. Here, the effect of the anticancer drug cisplatin, also known as cis-diamminedichloroplatinum (II) or CDDP, on adenosine triphosphate (ATP) generation was investigated using 3D spheroid-forming cells and real-time monitoring for 7 days. First, 12 cell lines were screened for their ability to form 3D spheroids: prostate (DU145), testis (F9), embryonic fibroblast (NIH-3T3), muscle (C2C12), embryonic kidney (293T), neuroblastoma (SH-SY5Y), adenocarcinomic alveolar basal epithelial cell (A549), cervical cancer (HeLa), HeLa contaminant (HEp2), pituitary epithelial-like cell (GH3), embryonic cell (PA317), and osteosarcoma (U-2OS) cells. Of these, eight cell lines were selected: NIH-3T3, C2C12, 293T, SH-SY5Y, A549, HeLa, PA317, and U-2OS; and five underwent real-time monitoring of CDDP cytotoxicity: HeLa, A549, 293T, SH-SY5Y, and U-2OS. ATP generation was blocked 1 day after addition of 50 μM CDDP, but cytotoxicity in HeLa, A549, SH-SY5Y, and U-2OS cells could be visualized only 4 days after treatment. In 293T cells, CDDP failed to kill entirely the culture and ATP generation was only partially blocked after 1 day. This suggests potential CDDP resistance of 293T cells or metabolic clearance of the drug. Real-time monitoring and ATP measurements directly confirmed the cytotoxicity of CDDP, indicating that CDDP may interfere with mitochondrial activity.
Collapse
Affiliation(s)
- NamHuk Baek
- Department of Research and Development, NanoEntek Inc., Seoul
| | - Ok Won Seo
- Department of Research and Development, NanoEntek Inc., Seoul
| | - Jaehwa Lee
- Department of Research and Development, NanoEntek Inc., Seoul
| | - John Hulme
- Department of BioNano Technology, Gachon University, Gyeonggi-do, Korea
| | - Seong Soo A An
- Department of BioNano Technology, Gachon University, Gyeonggi-do, Korea
| |
Collapse
|
42
|
Śliwka L, Wiktorska K, Suchocki P, Milczarek M, Mielczarek S, Lubelska K, Cierpiał T, Łyżwa P, Kiełbasiński P, Jaromin A, Flis A, Chilmonczyk Z. The Comparison of MTT and CVS Assays for the Assessment of Anticancer Agent Interactions. PLoS One 2016; 11:e0155772. [PMID: 27196402 PMCID: PMC4873276 DOI: 10.1371/journal.pone.0155772] [Citation(s) in RCA: 119] [Impact Index Per Article: 14.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2016] [Accepted: 05/03/2016] [Indexed: 11/19/2022] Open
Abstract
Multiple in vitro tests are widely applied to assess the anticancer activity of new compounds, including their combinations and interactions with other drugs. The MTT (3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide) assay is one of the most commonly used assays to assess the efficacy and interactions of anticancer agents. However, it can be significantly influenced by compounds that modify cell metabolism and reaction conditions. Therefore, several assays are sometimes used to screen for potential anticancer drugs. However, the majority of drug interactions are evaluated only with this single method. The aim of our studies was to verify whether the choice of an assay has an impact on determining the type of interaction and to identify the source of discrepancies. We compared the accuracy of MTT and CVS (crystal violet staining) assays in the interaction of two compounds characterized by similar anticancer activity: isothiocyanates (ITCs) and Selol. Confocal microscopy studies were carried out to assess the influence of these compounds on the reactive oxygen species (ROS) level, mitochondrial membrane potential, dead-to-live cell ratio and MTT-tetrazolium salt reduction rate. The MTT assay was less reliable than CVS. The MTT test of Selol and 2-oxoheptyl ITC, which affected the ROS level and MTT reduction rate, gave false negative (2-oxoheptyl ITC) or false positive (Selol) results. As a consequence, the MTT assay identified an antagonistic interaction between Selol and ITC, while the metabolism-independent CVS test identified an additive or synergistic interaction. In this paper, we show for the first time that the test assay may change the interpretation of the compound interaction. Therefore, the test method should be chosen with caution, considering the mechanism of action of the compound.
Collapse
Affiliation(s)
- Lidia Śliwka
- Department of Cell Biology, National Medicines Institute, Warszawa, Poland
- Department of Bioanalysis and Analysis of Drugs, Medical University of Warsaw, Warszawa, Poland
| | - Katarzyna Wiktorska
- Department of Cell Biology, National Medicines Institute, Warszawa, Poland
- * E-mail:
| | - Piotr Suchocki
- Department of Bioanalysis and Analysis of Drugs, Medical University of Warsaw, Warszawa, Poland
- Department of Pharmaceutical Chemistry, National Medicines Institute, Warszawa, Poland
| | - Małgorzata Milczarek
- Department of Cell Biology, National Medicines Institute, Warszawa, Poland
- Chair and Department of Synthesis and Chemical Technology of Pharmaceutical Substances, Medical University of Lublin, Lublin, Poland
| | - Szymon Mielczarek
- First Faculty of Medicine, Medical University of Warsaw, Warszawa, Poland
| | - Katarzyna Lubelska
- Department of Cell Biology, National Medicines Institute, Warszawa, Poland
| | - Tomasz Cierpiał
- Department of Heteroorganic Chemistry, Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Łódź, Poland
| | - Piotr Łyżwa
- Department of Heteroorganic Chemistry, Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Łódź, Poland
| | - Piotr Kiełbasiński
- Department of Heteroorganic Chemistry, Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Łódź, Poland
| | - Anna Jaromin
- Department of Lipids and Liposomes, Faculty of Biotechnology, University of Wroclaw, Wrocław, Poland
| | - Anna Flis
- Department of Bioanalysis and Analysis of Drugs, Medical University of Warsaw, Warszawa, Poland
| | - Zdzisław Chilmonczyk
- Department of Cell Biology, National Medicines Institute, Warszawa, Poland
- Institute of Nursing and Health Sciences, University of Rzeszów, Rzeszów, Poland
| |
Collapse
|
43
|
Leal CV, Martinez DST, Más BA, Alves OL, Duek EAR. Influence of purified multiwalled carbon nanotubes on the mechanical and morphological behavior in poly (L-lactic acid) matrix. J Mech Behav Biomed Mater 2016; 59:547-560. [PMID: 27038896 DOI: 10.1016/j.jmbbm.2016.03.016] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2016] [Revised: 03/13/2016] [Accepted: 03/17/2016] [Indexed: 11/26/2022]
Abstract
Poly (L-latic acid) (PLLA) is a bioresorbable polymer widely used as a biomaterial, but its fragility can limit its use. An alternative is to produce polymer nanocomposites, which can enhance the mechanical properties of polymeric matrix, resulting in a material with differentiated properties. In this work, PLLA based nanocomposites containing 0.25, 0.5 and 1.0wt% of purified multiwalled carbon nanotubes (p-MWCNTs) were prepared by the solvent casting method. The morphology and mechanical properties results show an improvement in strain at break for 0.25 and 0.5wt% p-MWCNTs and an increase in stiffness and elastic modulus for all compositions. Nanocomposites presented a p-MWCNTs agglomeration; however, there was a good stress transfer between PLLA and p-MWCNTs, which was confirmed by the increase in the hardness and elastic modulus. Atomic force microscopy analysis indicated an increase in roughness after nanotube addition. The in vitro biological study showed that PLLA/p-MWCNTs nanocomposites are cytocompatible with osteoblasts cells. The capacity of PLLA nanocomposites to stimulate osteogenesis was investigated by alkaline phosphatase (ALP) activity assay. Higher ALP activity was found on osteoblasts cultured on nanocomposites with 0.25 and 0.5wt% p-MWCNT compared to neat PLLA, confirming that PLLA cytocompatibility was improved on these compositions. Finally, our results showed that by a simple and inexpensive solvent casting method, it is possible to manufacture biofunctional nanocomposites devices with potential for orthopedic applications.
Collapse
Affiliation(s)
- C V Leal
- Department of Materials Engineering, Faculty of Mechanical Engineering, University of Campinas, 13083-860 Campinas, SP, Brazil.
| | - D S T Martinez
- Solid State Chemistry Laboratory, Institute of Chemistry, University of Campinas, P.O. Box 6154, 13081-970 Campinas, SP, Brazil; Brazilian Nanotechnology National Laboratory (LNNano), Brazilian Center for Research in Energy and Materials (CNPEM), 1308-970 Campinas, SP, Brazil
| | - B A Más
- Faculty of Medical Sciences, Pontifical Catholic University of São Paulo - PUC-SP, 18030-095 Sorocaba, SP, Brazil
| | - O L Alves
- Solid State Chemistry Laboratory, Institute of Chemistry, University of Campinas, P.O. Box 6154, 13081-970 Campinas, SP, Brazil
| | - E A R Duek
- Department of Materials Engineering, Faculty of Mechanical Engineering, University of Campinas, 13083-860 Campinas, SP, Brazil; Faculty of Medical Sciences, Pontifical Catholic University of São Paulo - PUC-SP, 18030-095 Sorocaba, SP, Brazil
| |
Collapse
|
44
|
Katti KS, Molla MS, Karandish F, Haldar MK, Mallik S, Katti DR. Sequential culture on biomimetic nanoclay scaffolds forms three-dimensional tumoroids. J Biomed Mater Res A 2016; 104:1591-602. [PMID: 26873510 DOI: 10.1002/jbm.a.35685] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2015] [Accepted: 02/09/2016] [Indexed: 01/17/2023]
Abstract
In recent times, the limitation of two-dimensional cultures and complexity of in vivo models has paved the way for the development of three-dimensional models for studying cancer. Here we report the development of a new tumor model using PCL/HAPClay scaffolds seeded with a sequential culture of human mesenchymal stem cells (hMSCs) followed by human prostate cancer cells (HPCCs). This nanocomposite system is used as a test-bed for studying cancer metastasis and efficacy of anti-cancer drugs using a polymersome delivery method. A novel sequential cell culture system in three-dimensional in vitro bone model provides a unique bone mimetic environment. The hMSCs seeded scaffolds are seeded with prostate cancer cells after the hMSCs have differentiated into osteoblasts. Sequential culture on the scaffolds has shown formation of tumoroids or microtissue consisting of organized, densely packed round cells with hypoxic core regions similar to in vivo tumors. Such tumoroids are not observed on HPCC seeded scaffolds or when HPCCs sequentially cultured with human osteoblast cells. Clearly, the newly differentiated hMSCs play a vital role in the ability of cancer cells to grow into tumoroids and cause disease. The PCL/HAPclay scaffold system seeded with the sequential culture of hMSCs, and HPCCs presents a good model system for study of the interactions between prostate cancer cells and bone microenvironment. © 2016 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 104A: 1591-1602, 2016.
Collapse
Affiliation(s)
- Kalpana S Katti
- Department of Civil and Environmental Engineering, North Dakota State University, Fargo, North Dakota, 58105
| | - Md Shahjahan Molla
- Department of Civil and Environmental Engineering, North Dakota State University, Fargo, North Dakota, 58105
| | - Fataneh Karandish
- Department of Pharmaceutical Sciences, North Dakota State University, Fargo, North Dakota, 58105
| | - Manas K Haldar
- Department of Pharmaceutical Sciences, North Dakota State University, Fargo, North Dakota, 58105
| | - Sanku Mallik
- Department of Pharmaceutical Sciences, North Dakota State University, Fargo, North Dakota, 58105
| | - Dinesh R Katti
- Department of Civil and Environmental Engineering, North Dakota State University, Fargo, North Dakota, 58105
| |
Collapse
|
45
|
A spheroid toxicity assay using magnetic 3D bioprinting and real-time mobile device-based imaging. Sci Rep 2015; 5:13987. [PMID: 26365200 PMCID: PMC4568483 DOI: 10.1038/srep13987] [Citation(s) in RCA: 98] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2015] [Accepted: 08/12/2015] [Indexed: 01/09/2023] Open
Abstract
An ongoing challenge in biomedical research is the search for simple, yet robust assays using 3D cell cultures for toxicity screening. This study addresses that challenge with a novel spheroid assay, wherein spheroids, formed by magnetic 3D bioprinting, contract immediately as cells rearrange and compact the spheroid in relation to viability and cytoskeletal organization. Thus, spheroid size can be used as a simple metric for toxicity. The goal of this study was to validate spheroid contraction as a cytotoxic endpoint using 3T3 fibroblasts in response to 5 toxic compounds (all-trans retinoic acid, dexamethasone, doxorubicin, 5′-fluorouracil, forskolin), sodium dodecyl sulfate (+control), and penicillin-G (−control). Real-time imaging was performed with a mobile device to increase throughput and efficiency. All compounds but penicillin-G significantly slowed contraction in a dose-dependent manner (Z’ = 0.88). Cells in 3D were more resistant to toxicity than cells in 2D, whose toxicity was measured by the MTT assay. Fluorescent staining and gene expression profiling of spheroids confirmed these findings. The results of this study validate spheroid contraction within this assay as an easy, biologically relevant endpoint for high-throughput compound screening in representative 3D environments.
Collapse
|
46
|
Tapias LF, Gilpin SE, Ren X, Wei L, Fuchs BC, Tanabe KK, Lanuti M, Ott HC. Assessment of Proliferation and Cytotoxicity in a Biomimetic Three-Dimensional Model of Lung Cancer. Ann Thorac Surg 2015; 100:414-21. [DOI: 10.1016/j.athoracsur.2015.04.035] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2015] [Revised: 04/03/2015] [Accepted: 04/07/2015] [Indexed: 11/27/2022]
|
47
|
Amphiphilic multiblock copolymers of PLLA, PEO and PPO blocks: Synthesis, properties and cell affinity. Eur Polym J 2015. [DOI: 10.1016/j.eurpolymj.2015.03.034] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
|
48
|
Sonnaert M, Papantoniou I, Luyten FP, Schrooten JI. Quantitative Validation of the Presto Blue Metabolic Assay for Online Monitoring of Cell Proliferation in a 3D Perfusion Bioreactor System. Tissue Eng Part C Methods 2015; 21:519-29. [PMID: 25336207 DOI: 10.1089/ten.tec.2014.0255] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
As the fields of tissue engineering and regenerative medicine mature toward clinical applications, the need for online monitoring both for quantitative and qualitative use becomes essential. Resazurin-based metabolic assays are frequently applied for determining cytotoxicity and have shown great potential for monitoring 3D bioreactor-facilitated cell culture. However, no quantitative correlation between the metabolic conversion rate of resazurin and cell number has been defined yet. In this work, we determined conversion rates of Presto Blue, a resazurin-based metabolic assay, for human periosteal cells during 2D and 3D static and 3D perfusion cultures. Our results showed that for the evaluated culture systems there is a quantitative correlation between the Presto Blue conversion rate and the cell number during the expansion phase with no influence of the perfusion-related parameters, that is, flow rate and shear stress. The correlation between the cell number and Presto Blue conversion subsequently enabled the definition of operating windows for optimal signal readouts. In conclusion, our data showed that the conversion of the resazurin-based Presto Blue metabolic assay can be used as a quantitative readout for online monitoring of cell proliferation in a 3D perfusion bioreactor system, although a system-specific validation is required.
Collapse
Affiliation(s)
- Maarten Sonnaert
- 1Prometheus, Division of Skeletal Tissue Engineering, KU Leuven, Leuven, Belgium.,2Department of Materials Engineering, KU Leuven, Leuven, Belgium
| | - Ioannis Papantoniou
- 1Prometheus, Division of Skeletal Tissue Engineering, KU Leuven, Leuven, Belgium.,3Skeletal Biology and Engineering Research Center, KU Leuven, Leuven, Belgium
| | - Frank P Luyten
- 1Prometheus, Division of Skeletal Tissue Engineering, KU Leuven, Leuven, Belgium.,3Skeletal Biology and Engineering Research Center, KU Leuven, Leuven, Belgium
| | - Jan Ir Schrooten
- 1Prometheus, Division of Skeletal Tissue Engineering, KU Leuven, Leuven, Belgium.,2Department of Materials Engineering, KU Leuven, Leuven, Belgium
| |
Collapse
|
49
|
Wang S, Wang Z, Foo SEM, Tan NS, Yuan Y, Lin W, Zhang Z, Ng KW. Culturing fibroblasts in 3D human hair keratin hydrogels. ACS APPLIED MATERIALS & INTERFACES 2015; 7:5187-98. [PMID: 25690726 DOI: 10.1021/acsami.5b00854] [Citation(s) in RCA: 67] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Human hair keratins are readily available, easy to extract, and eco-friendly materials with natural bioactivities. Keratin-based materials have been studied for applications such as cell culture substrates, internal hemostats for liver injury, and conduits for peripheral nerve repair. However, there are limited reports of using keratin-based 3D scaffolds for cell culture in vitro. Here, we describe the development of a 3D hair keratin hydrogel, which allows for living cell encapsulation under near physiological conditions. The convenience of making the hydrogels from keratin solutions in a simple and controllable manner is demonstrated, giving rise to constructs with tunable physical properties. This keratin hydrogel is comparable to collagen hydrogels in supporting the viability and proliferation of L929 murine fibroblasts. Notably, the keratin hydrogels contract less significantly as compared to the collagen hydrogels, over a 16-day culture period. In addition, preliminary in vivo studies in immunocompetent animals show mild acute host tissue response. These results collectively demonstrate the potential of cell-loaded keratin hydrogels as 3D cell culture systems, which may be developed for clinically relevant applications.
Collapse
Affiliation(s)
- Shuai Wang
- School of Materials Science and Engineering, Nanyang Technological University , N4.1, 50 Nanyang Avenue, Singapore 639798, Singapore
| | | | | | | | | | | | | | | |
Collapse
|
50
|
Unger C, Kramer N, Walzl A, Scherzer M, Hengstschläger M, Dolznig H. Modeling human carcinomas: physiologically relevant 3D models to improve anti-cancer drug development. Adv Drug Deliv Rev 2014; 79-80:50-67. [PMID: 25453261 DOI: 10.1016/j.addr.2014.10.015] [Citation(s) in RCA: 99] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2014] [Revised: 09/02/2014] [Accepted: 10/15/2014] [Indexed: 12/18/2022]
Abstract
Anti-cancer drug development is inefficient, mostly due to lack of efficacy in human patients. The high fail rate is partly due to the lack of predictive models or the inadequate use of existing preclinical test systems. However, progress has been made and preclinical models were improved or newly developed, which all account for basic features of solid cancers, three-dimensionality and heterotypic cell interaction. Here we give an overview of available in vivo and in vitro models of cancer, which meet the criteria of being 3D and mirroring human tumor-stroma interactions. We only focus on drug response models without touching models for pharmacokinetic and dynamic, toxicity or delivery aspects.
Collapse
|