Zhanna K Nazarkina, Alena O Stepanova, Tatyana A Savostyanova, Pavel P Laktionov
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引用次数: 0
Abstract
The development of new compounds or materials for medicine suggests a study of their cytotoxicity. The effect of a material on cell viability can be evaluated by several methods based on DNA content, DNA synthesis, plasma membrane integrity, cellular enzyme activity, cellular reducing potential, and ATP level. Sometimes it is impossible to apply widely used commercially available reagents, e.g., when cells are cultured on materials, that interfere with the chemicals used or resulting in the course of enzymatic reaction. Here, we offer a method for monitoring the viability of cells proliferating on different supports in vitro. The method is based on the measurement of lactate dehydrogenase (LDH) activity in cellular lysates. After cells were lysed in 1% Nonidet P40 and supernatants were transferred into fresh tubes, LDH activity was measured in the supernatants using colorimetric method. The usefulness of the test was studied using human cervical adenocarcinoma HeLa cells and human gingival fibroblasts cultivated on different materials, including activated carbon-loaded scaffolds. The comparison with widely used AlamarBlue® assay confirms the LDH-based method as an appropriate alternative for measuring the living cell number in vitro in a quick, simple, and cost-effective manner when widespread methods for the evaluation of cell viability could not be used.
期刊介绍:
The scope of the Journal includes:
1. The derivation, genetic modification and characterization of cell lines, genetic and phenotypic regulation, control of cellular metabolism, cell physiology and biochemistry related to cell function, performance and expression of cell products.
2. Cell culture techniques, substrates, environmental requirements and optimization, cloning, hybridization and molecular biology, including genomic and proteomic tools.
3. Cell culture systems, processes, reactors, scale-up, and industrial production. Descriptions of the design or construction of equipment, media or quality control procedures, that are ancillary to cellular research.
4. The application of animal/human cells in research in the field of stem cell research including maintenance of stemness, differentiation, genetics, and senescence, cancer research, research in immunology, as well as applications in tissue engineering and gene therapy.
5. The use of cell cultures as a substrate for bioassays, biomedical applications and in particular as a replacement for animal models.