2021  1,540
2020  1,374
2019  1,023
2018  0,932
2017  0,977
2016  0,799
2015  0,662
2014  0,740
2013  0,739
2012  0,637
2011  0,658
2010  0,654
2009  0,570
2008  0,849
2007  0,805
2006  0,330
2005  0,435
2004  0,623
2003  0,567
2002  0,641
2001  0,490
2000  0,477
1999  0,762
1998  0,785
1997  0,507
1996  0,518
1995  0,502
Vol 53(2019) N 2 p. 291-298; DOI 10.1134/S0026893319020110 Full Text

D.V. Maltseva1,2*, J.A. Makarova2,3, A.Yu. Khristichenko1, I.M. Tsypina1,4, E.A. Tonevitsky1, S.A. Rodin1,5

Epithelial to Mesenchymal Transition Marker in 2D and 3D Colon Cancer Cell Cultures in the Presence of Laminin 332 and 411

1SRC Bioclinicum, Moscow, 115088 Russia
2Hertsen Moscow Oncology Research Center, Branch of Federal State Budgetary Institution National Medical Research Radiological Center of the Ministry of Healthcare of the Russian Federation, Obninsk, 249036 Russia
3Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, 119991 Russia
4National Research University Higher School of Economics, Moscow, 101000 Russia
5Department of Medical Biochemistry and Biophysics, Karolinska Institute, Stockholm, SE17177 Sweden

Received - 2018-08-28; Revised - 2018-10-10; Accepted - 2018-11-06

Received August 28, 2018; revised October 10, 2018; accepted November 6, 2018

The loss of apical-basal cell polarity is a necessary stage of the epithelial-mesenchymal transition (EMT). Polarized epithelial cells interact with the basement membrane (BM) and, in particular, with laminins, the major components of BM. Here, we examined the effect of the transition of colon cancer cells from 2D polarized state to non-polarized 3D state on the expression of EMT associated genes, as well as the role of laminins 332 and 411 (LM-332 and LM-411) in this process. The three studied cell lines, HT-29, HCT-116 and RKO, were found to have different sensitivity to cultivation conditions (2D to 3D changes) and to addition of laminins. One of the possible reasons for this maybe a difference in the initial 2D state of the cells. In particular, it was shown that the cell lines were at different EMT stages. HT-29 exhibited more epithelial expression profile, RKO was more mesenchymal, and HCT-116 was in an intermediate state. The most laminin-sensitive cell line was HCT-116. The magnitude and the specificity of cell response to LM-332 and LM-411 depended on the expression pattern of laminins' receptors. EMT gene expression profile was not substantially changed neither during the transition from 2D to 3D state, nor the presence of laminins' isoforms. However, we detected changes in expression of SNAI1 and ZEB1 genes encoding transcription factors that control the EMT process. Notably, in all three studied cell lines, the expression of SNAI1 was enhanced in response to laminin treatment.

laminin-332, laminin-5, laminin-411, laminin-8, basal membrane, colon cancer, HT-29, HCT-116, RKO, epithelial-mesenchymal transition, apical-basal cell polarity, in vitro model, 2D culture, 3D culture