Epidemiological data indicate that in the last period there has been an increase in the number of malignancies and among them lung cancer is one of the most common forms. In vitro studies based on the usage of immortalized cell lines are an important source of scientific knowledge for understanding of the mechanism of cell growth, proliferation and cell death. In this paper, the most commonly used methods for in vitro research in NSCLC (non-small cell lung cancer) based on testing the effects

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... new compounds to determine the degree of apoptosis, necrosis, cell proliferation as well as their significance are discussed. So far, techniques of working with monolayer cultures have been mainly used. In the future, it is recommended to use a 3D system, knockout cell line and to conduct additional studies regarding the use of organoids or spheroids, as well as the application of new techniques to better understand the complex processes of carcinogenesis and the action of biologically active compounds.