Colony, hanging drop, and methylcellulose three dimensional hypoxic growth optimization of renal cell carcinoma cell lines.
Renal cell carcinoma (RCC) is the most lethal of the common urologic malignancies, comprising 3% of all human neoplasms, and the incidence of kidney cancer is rising annually. We need new approaches to target tumor cells that are resistant to current therapies and that give rise to recurrence and treatment failure. In this study, we focused on low oxygen tension and three-dimensional (3D) cell culture incorporation to develop a new RCC growth model. We used the hanging drop and colony formation methods, which are common in 3D culture, as well as a unique methylcellulose (MC) method. For the experiments, we used human primary RCC cell lines, metastatic RCC cell lines, human kidney cancer stem cells, and human healthy epithelial cells. In the hanging drop assay, we verified the potential of various cell lines to create solid aggregates in hypoxic and normoxic conditions. With the semi-soft agar method, we also determined the ability of various cell lines to create colonies under different oxygen conditions. Different cell behavior observed in the MC method versus the hanging drop and colony formation assays suggests that these three assays may be useful to test various cell properties. However, MC seems to be a particularly valuable alternative for 3D cell culture, as its higher efficiency of aggregate formation and serum independency are of interest in different areas of cancer biology.
Laboratory of Molecular Oncology, Department of Oncology, Military Institute of Medicine, Szaserow 128, 04-141, Warsaw, Poland.|School of Molecular Medicine, Medical University of Warsaw, Warsaw, Poland.
Damian
D
Matak
Laboratory of Molecular Oncology, Department of Oncology, Military Institute of Medicine, Szaserow 128, 04-141, Warsaw, Poland.
Klaudia K
KK
Brodaczewska
Laboratory of Molecular Oncology, Department of Oncology, Military Institute of Medicine, Szaserow 128, 04-141, Warsaw, Poland.|Faculty of Pharmacy with Laboratory Medicine Division, Medical University of Warsaw, Warsaw, Poland.
Monika
M
Lipiec
Laboratory of Molecular Oncology, Department of Oncology, Military Institute of Medicine, Szaserow 128, 04-141, Warsaw, Poland.|Institute of Genetics and Biotechnology, Faculty of Biology, University of Warsaw, Warsaw, Poland.|Department of Microwave Safety, Military Institute of Hygiene and Epidemiology, Warsaw, Poland.
Łukasz
Ł
Szymanski
Laboratory of Molecular Oncology, Department of Oncology, Military Institute of Medicine, Szaserow 128, 04-141, Warsaw, Poland.
Cezary
C
Szczylik
Laboratory of Molecular Oncology, Department of Oncology, Military Institute of Medicine, Szaserow 128, 04-141, Warsaw, Poland. anna.czarnecka@gmail.com.
Anna M
AM
Czarnecka
Colony; Hanging drop; Hypoxia; Methylcellulose; RCC