Therapeutic potential of tumor treating fields for malignant brain tumors

Youyou Zhou1,2,3, Xiaoqing Xing1,2,3, Jinyun Zhou1,2,3

  • 1Department of Nuclear Medicine and PET Center, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang, China.

Abstract

Insights

Tumor Treating Fields (TTFields) offer a novel approach to combat malignant brain tumors, including glioblastoma. This therapy utilizes electric fields to disrupt cancer cell processes, showing promising results in clinical studies and combination treatments.

Area of Science:

  • Oncology
  • Biophysics
  • Neuro-oncology

Background:

  • Malignant brain tumors, particularly glioblastoma (GBM), present significant treatment challenges with poor prognoses.
  • Tumor Treating Fields (TTFields) represent an emerging therapeutic modality using intermediate-frequency, low-intensity electric fields.

Purpose of the Study:

  • To review the mechanisms of action for TTFields in cancer treatment.
  • To summarize recent advancements in TTFields therapy for malignant brain tumors, with a focus on GBM.

Main Methods:

  • The review synthesizes findings from recent studies on TTFields.
  • It examines the impact of TTFields on cellular and molecular processes, including proteomics and transcriptomics.
  • The review also considers alterations in organelle structure and function induced by TTFields.

Main Results:

  • TTFields induce various biological processes that exhibit anti-cancer effects.
  • TTFields alter the bioelectrical state of macromolecules and organelles crucial to cancer cell biology.
  • Significant changes in cancer cell proteomics and transcriptomics are observed, affecting cellular processes and organelle activities.

Conclusions:

  • TTFields have demonstrated promising outcomes in clinical trials, especially for GBM.
  • Ongoing clinical studies are exploring TTFields-based combination therapies for malignant brain tumors.
  • This evolving therapeutic strategy holds potential for improving patient treatment outcomes.