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Tsitologiia ; 55(5): 328-32, 2013.
Artículo en Ruso | MEDLINE | ID: mdl-24592741

RESUMEN

To study the tumour-promotion activity of cell environment the transformed embryonic rat fibroblasts (clone CL-1-1) were transfect to immunodeficient mice then the cells of the formed tumour were cultivated (clone CL-1-1). The cells before and after transplantation were compared by morphology, proliferation activity and gap junction intracellular communications. The clone CL-1 cells proliferated much faster than clone CL-1 cells. The CL-1-1 cells had changed morphology structure and unlike CL-1 the contract inhibition was absent in CL-1-1. The number of CL-1 cells in phase G1 was significantly greater than that of CL-1-1 cells, while the number of CL-1-1 cells in G2/M phases was much more the number of CL-1 cells. The activity of gap junction intercellular communications in both cell types was near the same. It was concluded that cell microenvironment act as a tumour-promoter and tumour progression factor in the case of cell transplantation to immunodeficient mice.


Asunto(s)
Transformación Celular Neoplásica , Fibroblastos/citología , Microambiente Tumoral , Animales , División Celular , Línea Celular Tumoral , Proliferación Celular , Microambiente Celular/genética , Fibroblastos/metabolismo , Fase G1/genética , Ratones , Ratas
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