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Quantification of Breast Cancer Cell Invasiveness Using a Three-dimensional (3D) Model
08:08

Quantification of Breast Cancer Cell Invasiveness Using a Three-dimensional (3D) Model

Published on: June 11, 2014

Comparative transductions of breast cancer cells by three DNA viruses

Annick Lucas1, Eric J Kremer, Silvio Hemmi

  • 1INSERM U540 Molecular and Cellular Endocrinology of Cancers, 60, rue de Navacelles, Montpellier 34090, France.

Biochemical and Biophysical Research Communications
|September 19, 2003
PubMed

Insights

Human adenoviruses, such as Ad5, efficiently infect breast cancer cells, outperforming canine adenovirus (CAV-2) and adeno-associated virus (AAV-2). Viral infection efficiency may not solely depend on CAR or integrin levels.

Area of Science:

  • Oncology
  • Virology
  • Gene Therapy

Background:

  • Developing effective viral vectors for breast cancer treatment is a key area of pre-clinical research.
  • Understanding vector tropism and infection efficiency is crucial for optimizing gene delivery strategies.

Purpose of the Study:

  • To directly compare the infection efficiencies of human adenovirus serotype 5 (Ad5), canine adenovirus serotype 2 (CAV-2), and human adeno-associated virus serotype 2 (AAV-2) in breast cancer cells.
  • To investigate the role of coxsackie adenovirus receptor (CAR) and alpha(v) integrin in mediating viral entry.

Main Methods:

  • Real-time PCR to quantify viral genome in infected cells.
  • Flow cytometry to assess cell surface receptor expression.
  • Antibody blocking assays to determine receptor-mediated entry.

Main Results:

  • Ad5 demonstrated excellent infection efficiency in breast cancer cells.
  • CAV-2 and AAV-2 exhibited low infection efficiencies.
  • Ad5 and CAV-2 infection did not strictly correlate with CAR or alpha(v) integrin levels.

Conclusions:

  • Human adenoviruses, particularly Ad5, are highly effective at transducing breast cancer cells.
  • Predicting viral vector infection efficiency based solely on CAR or alpha(v) integrin expression may be unreliable.

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