Roland B Sennerstam

Roland B Sennerstam
Department of Pathology and Oncology , Karolinska Hospital and Karolinska, Institutet SE-171 76 Stockholm,
Sweden

Publications
  • Research Article
    Genomic Instability or One-Gene Theory for Tumor Progression: A Breast Cancer Study
    Author(s): Roland B Sennerstam and Jan-Olov Strömberg Roland B Sennerstam and Jan-Olov Strömberg

    Objective: There is an ongoing debate in the literature as to whether human cancers originate from unique clones with single oncogene mutations or propagate from early established genomic instabilities due to intermediate metastable tetraploidization. The aim of this study was to investigate how far genomic instability, reflected in ploidy alterations, can explain tumor progression. Methods: In total 1,280 patients were involved in this study. We defined DNA-index (DI) intervals for diploid, tetraploid and aneuploid tumors and made simulations based on increasing age of patients, from 30 to 60 years old. We related this information to four enhancement steps of a parameter reflecting genomic instability generated from the tumor G1 peak coefficient of variation, S-phase fraction and number of cells exceeding G2 phase DNA region (stemline-scatter-index; SSI). The change in ploidy .. View More»
    DOI: 10.4172/2157-2518.1000223

    Abstract PDF