Bcl-2 expression in breast carcinoma cells in vitro

Abstract

Author(s): Jolanta Rzymowska

Apoptosis is a physiological form of cell death that occurs in all tissues Deregulated expression of some oncogenes causes increased cell division and advances cell growth. The balance between bcl-2 and c-myc and c-jun seems to be an important determinant of cellular sensitivity to the induction of apoptosis. Bcl-2 gene promotes cell survival rather than cell proliferation In the our study bcl-2 has been demonstrated to inhibit apoptosis in breast cancer cells in vitro (T47D). High expression of bcl-2 was noticed to be strongly related to low rates of apoptotic and necrotic cell death. The mean value of the apoptotic index was 7.5% in bcl-2-negative tumours and 0.55% in bcl-2-positive tumours. High proliferation rate was associated with the absence of bcl-2 expression. C-myc and c-jun accumulation were associated with the presence of bcl- 2 expression and with decreased apoptotic activity. The loss of bcl-2 expression was strongly correlated with increased apoptotic and necrotic cell death. This establishes a model in which bcl-2 not only mediates in cell death, but also cell division in breast carcinoma cells, and in which the regulation of cell division and cell death are strictly connected.

<

Share this article

Awards Nomination

Editors List

  • Prof. Elhadi Miskeen

    Obstetrics and Gynaecology Faculty of Medicine, University of Bisha, Saudi Arabia

  • Ahmed Hussien Alshewered

    University of Basrah College of Medicine, Iraq

  • Sudhakar Tummala

    Department of Electronics and Communication Engineering SRM University – AP, Andhra Pradesh

     

     

     

  • Alphonse Laya

    Supervisor of Biochemistry Lab and PhD. students of Faculty of Science, Department of Chemistry and Department of Chemis

     

  • Fava Maria Giovanna

     

Google Scholar citation report
Citations : 208

Onkologia i Radioterapia received 208 citations as per Google Scholar report

Onkologia i Radioterapia peer review process verified at publons
Indexed In
  • Directory of Open Access Journals
  • Scimago
  • SCOPUS
  • EBSCO A-Z
  • MIAR
  • Euro Pub
  • Google Scholar
  • Medical Project Poland
  • PUBMED
  • Cancer Index
  • Gdansk University of Technology, Ministry Points 20