Department of Mathematics, Royal Institute of Technology, Stockholm, Sweden
Research Article
Presentation of an Intertwined Tumor Chain from Diploid over Tetraploid towards the Aneuploid Tumors
Author(s): Roland Sennerstam, Jan-Olov Strömberg and Gert Auer*
The role of Tetraploidization (TPZ) in tumor progression is not clearly described as an important link from one
benign tumor to a more malign tumor. In this report we will intertwine the TPZ in a chain starting with diploid and
during a lot of replicative stress parameters and hypoxia under increasing genomic instability losing genetic material
and move down to aneuploids tumors. To arrange this connection between DNA (DI) entities we separated all
tetraploid tumors in two subgroups (1.8 ≥ DI<2.0) and to (2.0 ≥ DI<2.2), and furthermore, two aneuploid groups
divided in (1.2 ≥ DI<1.4) and (1.4 ≥ DI<1.8). This rather simple higher level of resolution has opened a new way to
a deeper understanding of ploidy alterations during tumor progression. In total 1253 breast cancer patients divided
in five decades were included from age <40 years and.. View more»