scholarly journals Scaffold-free three-dimensional cell culturing using magnetic levitation

2018 ◽  
Vol 6 (7) ◽  
pp. 1745-1753 ◽  
Author(s):  
Esra Türker ◽  
Nida Demirçak ◽  
Ahu Arslan-Yildiz

Magnetic levitation platform ensures a scaffold-free 3D cell culture formation by utilizing Gadolinium(iii) chelates, which provide paramagnetic environment for levitation; therefore, the cells are assembled into complex 3D structures.

2021 ◽  
Vol 37 (1) ◽  
pp. 87-94
Author(s):  
S.V. Nikulin ◽  
B.Ya. Alekseev ◽  
A.N Gorbunov ◽  
I.M. Vatsuro ◽  
V.V. Kovalev ◽  
...  

A comparative study of the toxicity of two unsubstituted calixarenes consisting of 4 and 6 phenolic fragments, as well as their p-sulfated derivatives, was carried out on the HT-29 colorectal adenocarcinoma cells cultured in two-dimensional (2D) and three-dimensional (3D) formats. It was shown that both unsubstituted calixarenes decrease the viability of tumor cells; calix[4]arene and calix[6]arene exhibited a cytostatic and a cytotoxic effect, respectively. Sulfated derivatives of calixarenes did not have a pronounced toxic effect on HT-29 cells. However, due to their high hydrophilicity and the ability to form adducts with various therapeutic molecules, they can be used for delivery of anticancer drugs. calixarenes, cytotoxicity, HT-29 cells, 2D cell culture, 3D cell culture The work was financially supported by the Russian Science Foundation (project no. 19-15-00397).


RSC Advances ◽  
2015 ◽  
Vol 5 (110) ◽  
pp. 90596-90601 ◽  
Author(s):  
Rong Fan ◽  
Yihang Sun ◽  
Jiandi Wan

Leaf-inspired artificial microvascular networks (LIAMN) for 3D cell culture in hydrogel constructs.


2018 ◽  
Vol 6 (7) ◽  
pp. 1996-1996
Author(s):  
Esra Türker ◽  
Nida Demirçak ◽  
Ahu Arslan-Yildiz

Correction for ‘Scaffold-free three-dimensional cell culturing using magnetic levitation’ by Esra Türker et al., Biomater. Sci., 2018, DOI: 10.1039/c8bm00122g.


2019 ◽  
Author(s):  
Tiffany Miller

<p>Bone marrow derived stem cells express biomarkers capable of facilitating adhesion to the cell culturing microenvironment, thereby, influencing their proliferation, migration, and differentiation. In particular, biological biomarkers of mesenchymal stem cells include, but are not limited to, CD14-, CD19-, CD34-, CD45-, CD29, CD44, CD73+, CD90+, CD105+, CD106, CD166, Stro-1, and HLADR. The relationship between the stem cell biology and the materials and methods forming a cell culturing microenvironment serves as a critical aspect in the successful adhesion and growth within two-dimensional cell culture microenvironments such as polystyrene, laminin, fibronectin, or poly-L-lysine and within three-dimensional cell culture microenvironments such as hydrogel, ceramic, collagen, polymer based nanofibers, agitation, forced floating, and hang drop systems. Further, electrical stimulation of the stem cells may be implemented during the cell culturing process to measure stem cell growth and to determine stem cell viability. In addition, electrical stimulation of implanted stem cells may facilitate tracking by measuring stem cell migration distance and travel area. Although many biochemical and inflammatory biomarkers are expressed based on severity in stroke including, but not limited to, Interluken-6 (IL-6), tumor necrosis factor-alpha (TNF-α), and glutamate (Glu), current methodologies of stem cell directing lack localization and biological effector specificity. Biological effector bound magnetic particle stem cells may serve as a potential treatment method in ischemic stroke. In particular, a stem cell biomarker may be configured to communicate with inflammatory biomarkers, thus, more efficiently delivering the stem cells to site specific areas having the most severely affected <i>in-vivo</i> biochemical microenvironments.</p>


2016 ◽  
Vol 27 (6) ◽  
pp. 652-656 ◽  
Author(s):  
Emmanuel João Nogueira Leal Silva ◽  
Nancy Kudsi de Carvalho ◽  
Carina Taboada Ronconi ◽  
Gustavo De-Deus ◽  
Mario Luis Zuolo ◽  
...  

Abstract The aim of the present study was to evaluate the cytotoxic effects of five endodontic sealers (AH Plus, Endomethasone N, EndoSequence BC, MTA Fillapex and Pulp Canal Sealer EWT) using a three-dimensional (3D) cell culture model. A conventional bi-dimensional (2D) cell culture model was used as reference technique for comparison. Balb/c 3T3 fibroblasts were cultured in conventional bi-dimensional cell culture and in rat-tail collagen type I three-dimensional cell culture models. Then, both cell cultures were incubated with elutes of freshly mixed endodontic sealers for 24 h. Cell viability was measured by the methyl-thiazol-diphenyltetrazolium assay (MTT). Data were statistically analyzed using ANOVA and the Tukey test at a significance level of p<0.05. All tested sealers exhibited cytotoxic effects; however, cytotoxic effect was culture model- and sealer-dependent. Sealers showed higher cytotoxicity in 2D than in 3D cell culture model (p<0.05). In both conditions, EndoSequence BC showed the lowest cytotoxicity (p<0.05). MTA Fillapex was much more cytotoxic than the other tested endodontic sealers (p<0.05), with the exception of AH Plus in the 2D cell culture model (p>0.05). Endomethasone N and Pulp Canal Sealer EWT showed lower cytotoxic effects than AH Plus in 2D cell culture model (p<0.05); however no statistical differences was observed among these sealers in 3D cell culture model. It may be concluded that cytotoxicity was higher in 2D cell culture compared to 3D cell culture. EndoSequence BC sealer exhibited the highest cytocompatibility and MTA Fillapex the lowest cytocompatibility.


The Analyst ◽  
2016 ◽  
Vol 141 (18) ◽  
pp. 5311-5320 ◽  
Author(s):  
Chengpeng Chen ◽  
Benjamin T. Mehl ◽  
Scott A. Sell ◽  
R. Scott Martin

An air focusing technique was used to directly electrospin fibers into fully sealed microfluidic devices for 3D cell culture.


2016 ◽  
Vol 3 (6) ◽  
pp. 263-277
Author(s):  
Samille Henriques Pereira ◽  
Denise Soares de Moura Coutinho ◽  
Ana Flávia de Oliveira Gonçalves de Matos ◽  
Willer Ferreira da Silva Junior ◽  
Daniela Leite Fabrino

Two-dimensional cell culture (2D) is the most used technique in studies of mass production of proteins and vaccines; however, this technique is quite limited, since cells lose their phenotypic characteristics when cultured in monolayer. As an alternative, three-dimensional cell culture (3D) allowed cells to be cultured within an environment closer to their natural one, keeping in that way, their physiologic characteristics. When grown in this kind of system, cells form structures called multicellular spheroids, which present in their cores: cellular heterogeneity, microenvironment formation, and different expositions to several factors, such as nutrients and oxygen. This technique has revolutionized researches on drug development and its mechanism of action, since the results obtained in 3D cell culture are more realistic than the ones arisen from 2D cell culture. Recently, there have been developed many 3D cell culture methodologies, however, it misses technology to scale up the biomass growth, which is a great challenge for bioprocess engineers (BE). Therefore, this review aimed to show the technical reality of 3D cell culture and how such professionals can apply their engineering and life science knowledge to improve and develop new technologies that make the use of 3D cell culture feasible and widely used by biotechnological industries.


2019 ◽  
Author(s):  
Tiffany Miller

<p>Bone marrow derived stem cells express biomarkers capable of facilitating adhesion to the cell culturing microenvironment, thereby, influencing their proliferation, migration, and differentiation. In particular, biological biomarkers of mesenchymal stem cells include, but are not limited to, CD14-, CD19-, CD34-, CD45-, CD29, CD44, CD73+, CD90+, CD105+, CD106, CD166, Stro-1, and HLADR. The relationship between the stem cell biology and the materials and methods forming a cell culturing microenvironment serves as a critical aspect in the successful adhesion and growth within two-dimensional cell culture microenvironments such as polystyrene, laminin, fibronectin, or poly-L-lysine and within three-dimensional cell culture microenvironments such as hydrogel, ceramic, collagen, polymer based nanofibers, agitation, forced floating, and hang drop systems. Further, electrical stimulation of the stem cells may be implemented during the cell culturing process to measure stem cell growth and to determine stem cell viability. In addition, electrical stimulation of implanted stem cells may facilitate tracking by measuring stem cell migration distance and travel area. Although many biochemical and inflammatory biomarkers are expressed based on severity in stroke including, but not limited to, Interluken-6 (IL-6), tumor necrosis factor-alpha (TNF-α), and glutamate (Glu), current methodologies of stem cell directing lack localization and biological effector specificity. Biological effector bound magnetic particle stem cells may serve as a potential treatment method in ischemic stroke. In particular, a stem cell biomarker may be configured to communicate with inflammatory biomarkers, thus, more efficiently delivering the stem cells to site specific areas having the most severely affected <i>in-vivo</i> biochemical microenvironments.</p>


2020 ◽  
Vol 44 (3) ◽  
pp. 171-174
Author(s):  
Katarina Mišković Špoljarić ◽  
Marijana Jukić ◽  
Teuta Opačak-Bernardi ◽  
Ljubica Glavaš-Obrovac

Traditional two dimensional cell culture has enabled great strides in biomedicine but needs to be improved to be able to keep up with the demands of modern biomedical research. 2D monolayer culture cannot replicate tissue responses and needs to be supplemented with extensive animal research. Growing cells in three dimensional scaffolds provides a more functional model for biomedical research than traditional monolayer culture. Depending on the needs and the complexity of the model there are several ways that 3D models can be initiated. Simple spheroids can be grown in low adherence plates and in hanging drops while larger spheroids and co-cultured ones need to be grown in systems with greater support such as hydro gels. The system that offers the greatest flexibility is the magnetic levitation approach. In the paper we offer a brief resume to various 3D methods and their characteristics to ease the choice of methods for implementing 3D cell culture techniques.


2014 ◽  
Author(s):  
Luis G. Sabino ◽  
Priscila F. C. Menezes ◽  
Vanderlei S. Bagnato ◽  
Glauco Souza ◽  
Thomas C. Killian ◽  
...  

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