The confluence of stereotactic ablative radiotherapy and tumor immunology

Clin Dev Immunol. 2011:2011:439752. doi: 10.1155/2011/439752. Epub 2011 Nov 15.


Stereotactic radiation approaches are gaining more popularity for the treatment of intracranial as well as extracranial tumors in organs such as the liver and lung. Technology, rather than biology, is driving the rapid adoption of stereotactic body radiation therapy (SBRT), also known as stereotactic ablative radiotherapy (SABR), in the clinic due to advances in precise positioning and targeting. Dramatic improvements in tumor control have been demonstrated; however, our knowledge of normal tissue biology response mechanisms to large fraction sizes is lacking. Herein, we will discuss how SABR can induce cellular expression of MHC I, adhesion molecules, costimulatory molecules, heat shock proteins, inflammatory mediators, immunomodulatory cytokines, and death receptors to enhance antitumor immune responses.

Publication types

  • Review

MeSH terms

  • Animals
  • Apoptosis / immunology
  • B7-1 Antigen / immunology
  • Brain Neoplasms / immunology
  • Brain Neoplasms / surgery
  • Cell Adhesion Molecules / immunology
  • Cytokines / immunology
  • Heat-Shock Proteins / immunology
  • Humans
  • Immune System / radiation effects*
  • Immune Tolerance
  • Liver Neoplasms / immunology
  • Liver Neoplasms / surgery
  • Lung Neoplasms / immunology
  • Lung Neoplasms / surgery
  • Major Histocompatibility Complex / immunology
  • Mice
  • Mice, Knockout
  • Neoplasms / immunology*
  • Neoplasms / surgery*
  • Radiosurgery / methods*
  • Receptors, Death Domain / immunology
  • Tumor Escape


  • B7-1 Antigen
  • Cell Adhesion Molecules
  • Cytokines
  • Heat-Shock Proteins
  • Receptors, Death Domain