Nature Communications (Jul 2018)

Stromal PTEN determines mammary epithelial response to radiotherapy

  • Gina M. Sizemore,
  • Subhasree Balakrishnan,
  • Katie A. Thies,
  • Anisha M. Hammer,
  • Steven T. Sizemore,
  • Anthony J. Trimboli,
  • Maria C. Cuitiño,
  • Sarah A. Steck,
  • Gary Tozbikian,
  • Raleigh D. Kladney,
  • Neelam Shinde,
  • Manjusri Das,
  • Dongju Park,
  • Sarmila Majumder,
  • Shiva Krishnan,
  • Lianbo Yu,
  • Soledad A. Fernandez,
  • Arnab Chakravarti,
  • Peter G. Shields,
  • Julia R. White,
  • Lisa D. Yee,
  • Thomas J. Rosol,
  • Thomas Ludwig,
  • Morag Park,
  • Gustavo Leone,
  • Michael C. Ostrowski

DOI
https://doi.org/10.1038/s41467-018-05266-6
Journal volume & issue
Vol. 9, no. 1
pp. 1 – 14

Abstract

Read online

The tumor microenvironment influences tumor progression. Here the authors show that lack of stromal PTEN phosphatase induces DNA repair defects in the neighboring mammary gland epithelial cells via hyperactivation of EGF-receptor signaling, resulting in higher radiation-induced DNA damage and hyperplasia.