We continue analysis of the phenotype of human melanoma cell Mel Ibr subclone obtained previously by treatment of the parental cell line by chicken embryo extract. The present study is focused on detection of markers of epithelial-mesenchymal transition that determine enhanced metastatic and invasive potential of malignant tumors of various locations. Analysis of the expression of E-cadherin and vimentin genes in the subclone and parental cells detected activation of epithelial-mesenchymal transition in the subclone. Immunological markers CD90, CD271, and CD95 were present in the parental population, but were not detected on the subclone cells. In contrast to the parental line, cells of the analyzed subclone retain viability in serum-free medium and formed vessel-like structures characteristic of vasculogenic mimicry.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1007/s10517-017-3778-y | DOI Listing |
Int J Mol Sci
July 2023
Department of Ophthalmology, Gavin Herbert Eye Institute, University of California Irvine, Irvine, CA 92697, USA.
Bull Exp Biol Med
June 2017
N. N. Blokhin Russian Cancer Research Center, Ministry of Health of the Russian Federation, Moscow, Russia.
We continue analysis of the phenotype of human melanoma cell Mel Ibr subclone obtained previously by treatment of the parental cell line by chicken embryo extract. The present study is focused on detection of markers of epithelial-mesenchymal transition that determine enhanced metastatic and invasive potential of malignant tumors of various locations. Analysis of the expression of E-cadherin and vimentin genes in the subclone and parental cells detected activation of epithelial-mesenchymal transition in the subclone.
View Article and Find Full Text PDFBull Exp Biol Med
August 2015
N. N. Blokhin Russian Cancer Research Center, Russian Academy of Medical Sciences, Moscow, Russia.
Exposure of Mel Ibr human melanoma cells to chicken embryo extract resulted in the appearance of a subclone with morphological and growth characteristics similar to those of embryonic stem cells. The subclone differed from the parental line cells by a sharply reduced percentage of HLA-DR(+) and CD54(+) cells, a significantly elevated percentage of CD63(+) cells, and appearance of CD133(+) and Oct-4A(+) cells. Hence, the subclone cells were characterized by the same features as stem tumor cells and could be responsible for further progress of tumor growth.
View Article and Find Full Text PDFJ Biomed Opt
January 2009
Institute of Applied Physics RAS, 46 Ulyanov Street, 603950 Nizhny Novgorod, Russia.
A fluorescence diffuse tomography (FDT) setup for monitoring tumor growth in small animals has been created. In this setup an animal is scanned in the transilluminative configuration by a single source and detector pair. To remove stray light in the detection system, we used a combination of interferometric and absorption filters.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!