Macrophage polarization as a novel weapon in conditioning tumor microenvironment for bladder cancer: can we turn demons into gods?

Clin Transl Oncol. 2019 Apr;21(4):391-403. doi: 10.1007/s12094-018-1952-y. Epub 2018 Oct 5.

Abstract

Macrophages are major components of the immune infiltration in cancer where they can affect tumor behavior. In the bladder, they play important roles during the resolution of infectious processes and they have been associated with a worse clinical prognosis in bladder cancer. The present review focused on the characteristics of these important immune cells, not only eliciting an innate immune surveillance, but also on their importance during the cancer immunoediting process. We further discuss the potential of targeting macrophages for anticancer therapy, the current strategies and the state of the art as well as the foreseen role on combined therapies on the near future. This review shows how a comprehensive understanding of macrophages within the tumor should translate to better clinical outcome and new therapeutic strategies focusing especially on bladder cancer.

Keywords: TAMs in bladder; TAMs in cancer; TAMs targeted therapy.

Publication types

  • Review

MeSH terms

  • Animals
  • Cell Plasticity / immunology
  • Humans
  • Immunity, Innate
  • Macrophage Activation / drug effects
  • Macrophage Activation / immunology*
  • Macrophages / drug effects
  • Macrophages / immunology*
  • Macrophages / pathology
  • Molecular Targeted Therapy*
  • Tumor Microenvironment / drug effects
  • Tumor Microenvironment / immunology*
  • Urinary Bladder / immunology
  • Urinary Bladder / pathology
  • Urinary Bladder Neoplasms / drug therapy
  • Urinary Bladder Neoplasms / immunology
  • Urinary Bladder Neoplasms / pathology*