title: [Changes in primary heat sensitivity of rhabdomyosarcoma PA-2 cells in rats during selection for heat resistance].
abstract: Using the technique of multistep selection, a thermoresistant substrain (TR RA-2T45) was obtained from a rhabdomyosarcoma RA-2 strain. The cells of this substrain retain the ability to form lung metastasis after a 20 minute treatment at 45 degrees C in vitro. The selection of cells for their ability to retain their reproduction activity is accompanied by the increase in their primary thermoresistance. The increased reproductive thermoresistance and primary thermoresistance of the selected cells is hereditary stabilized. Cells of both original strain and its substrain are capable of thermal tolerance, which makes perspective the selection for further increase in thermoresistance in RA-2T4t cell population.
authors.forename: M F
authors.initials: MF
authors.lastname: Konstantinova
authors.forename: V D
authors.initials: VD
authors.lastname: Trusova
authors.forename: Iu B
authors.initials: IuB
authors.lastname: Vakhtin
mesh_terms: D000818:Animals; D006358:Hot Temperature; D008175:Lung Neoplasms / Q000503:physiopathology* / Q000556:secondary; D008748:Methylcholanthrene; D051381:Rats; D012208:Rhabdomyosarcoma / Q000139:chemically induced / Q000503:physiopathology*; D012641:Selection, Genetic; D013696:Temperature; D013997:Time Factors; D014407:Tumor Cells, Cultured; D014410:Tumor Stem Cell Assay
chemical_list: D008748:Methylcholanthrene
vernacular_title: Izmenenie pervichnoĭ termoustoĭchivosti kletok rabdomiosarkomy PA-2 krys v protsesse selektsii na termorezistentnost'.