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  • Title: Flow cytometric analysis of R3327 rat prostate adenocarcinoma grown in vivo and in vitro.
    Author: Claflin AJ, Pollack A, Malinin T, Block NL, Irvin GL.
    Journal: J Natl Cancer Inst; 1982 Jul; 69(1):79-87. PubMed ID: 6954325.
    Abstract:
    The Dunning R3327 transplantable prostate adenocarcinoma in the Copenhagen rat is an acceptable model for the human disease. The G-subline (a rapidly growing carcinoma) and the H-subline (a slow-growing, well-differentiated adenocarcinoma) represent the extremes of differentiation and growth rate of this tumor. Both sublines were found to have one population that was diploid and a second aneuploid population that was hyperdiploid in DNA content. The percentage of hyperdiploid cells was significantly higher in R3327-G tumors than in R3327-H tumors. The tumor cell population ratios were stable in vivo, but the in vitro culture conditions supported only cells with diploid DNA content following four to five subcultures. These predominantly diploid cultured cells, when injected into intact male rats, resulted in tumors that had both diploid and aneuploid cells.
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