In Vitro Cellular & Developmental Biology - Animal

, Volume 41, Issue 10, pp 337–342

Establishment of three human breast epithelial cell lines derived from carriers of the 999del5 BRCA2 icelandic founder mutation

  • Agla J. Rubner Fridriksdottir
  • Thorarinn Gudjonsson
  • Thorhallur Halldorsson
  • Johannes Björnsson
  • Margret Steinarsdottir
  • Oskar Thor Johannsson
  • Helga M. Ögmundsdottir
Articles Cell and Tissue Models

DOI: 10.1007/s11626-005-0005-3

Cite this article as:
Fridriksdottir, A.J.R., Gudjonsson, T., Halldorsson, T. et al. In Vitro Cell.Dev.Biol.-Animal (2005) 41: 337. doi:10.1007/s11626-005-0005-3
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Summary

Germ line mutations in BRCA1 and BRCA2 account for a large proportion of inherited breast and ovarian cancer. Both genes are involved in DNA repair by homologous recombination and are thought to play a vital role in maintaining genomic stability. A major drawback for long-term functional studies of BRCA in general and BRCA2 in particular has been a lack of representative human breast epithelial cell lines. In the present study, we have established three cell lines from two patients harboring the 999del5 germ line founder mutation in the BRCA2 gene. Primary cultures were established from cellular outgrowth of explanted tissue and subsequently transfected with a retroviral construct containing the HPV-16 E6 and E7 oncogenes. Paired cancer-derived and normal-derived cell lines were established from one patient referred to as BRCA2-999del5-2T and BRCA2-999del5-2N, respectively. In addition, one cell line was derived from cancer-associated normal tissue from another patient referred to as BRCA2-999del5-1N. All three cell lines showed characteristics of breast epithelial cells as evidenced by expression of breast epithelial specific cytokeratins. Cytogenetic analysis showed marked chromosomal instability with tetraploidy and frequent telomeric association. In conclusion, we have established three breast cpithelial cell lines from two patients carrying the BRCA2 Icelandic 999del5 founder mutation. These cell lines from the basis for further studies on carcinogenesis and malignant progression of breast cancer on a defined genetic background.

Key words

breast cancercell linesimmortalizationBRCA2 mutation

Copyright information

© Society for In Vitro Biology 2005

Authors and Affiliations

  • Agla J. Rubner Fridriksdottir
    • 1
    • 2
  • Thorarinn Gudjonsson
    • 1
    • 2
  • Thorhallur Halldorsson
    • 1
    • 3
  • Johannes Björnsson
    • 1
    • 3
  • Margret Steinarsdottir
    • 4
    • 5
  • Oskar Thor Johannsson
    • 4
    • 5
  • Helga M. Ögmundsdottir
    • 2
    • 2
  1. 1.Faculty of MedicineUniversity of IcelandReykjavikIceland
  2. 2.Molecular and Cell Biology Research LaboratoryIcelandic Cancer SocietyReykjavikIceland
  3. 3.Department of PathologyLandspitali University HospitalReykjavikIceland
  4. 4.Chromosome Laboratory, Department of PathologyLandspitali University HospitalReykjavikIceland
  5. 5.Department of OncologyLandspitali University HospitalReykjavikIceland