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Toll-like receptors in breast cancer immunity and immunotherapy

Joseph Zhou1, Lin Zhang1, Siyao Liu2

  • 1Center for Infectious and Inflammatory Diseases, Institute of Biosciences and Technology, Texas A&M University, Houston, TX, United States.

Frontiers in Immunology
|June 21, 2024
PubMed

Insights

Toll-like receptors (TLRs) are crucial in immunity and breast cancer. Their activation can promote or inhibit tumor growth, with complex mechanisms requiring further study for targeted cancer therapies.

Area of Science:

  • Immunology
  • Oncology
  • Molecular Biology

Background:

  • Toll-like receptors (TLRs) are pattern recognition receptors (PRRs) vital for innate immunity.
  • TLR activation is implicated in pathogen defense and danger signaling.
  • Emerging evidence highlights TLRs' complex roles in breast cancer progression and treatment.

Purpose of the Study:

  • To review the dual role of TLRs in breast cancer immunity.
  • To elucidate the mechanisms behind TLRs' pro- and anti-tumor effects.
  • To discuss TLR-targeting strategies for breast cancer immunotherapy.

Main Methods:

  • Literature review and synthesis of current research on TLRs in breast cancer.
  • Analysis of studies investigating TLR signaling pathways in cancer.
  • Evaluation of preclinical and clinical data on TLR-based therapies.

Main Results:

  • TLR activation presents a double-edged sword in breast cancer, potentially driving tumor growth or mediating anti-tumor immunity.
  • The precise mechanisms governing these opposing effects remain incompletely understood.
  • Targeting TLRs shows promise as a therapeutic strategy, either alone or in combination with existing treatments.

Conclusions:

  • TLRs significantly influence breast cancer immunity and immunotherapy outcomes.
  • Further research is needed to fully decipher TLR signaling complexities in breast cancer.
  • Modulating TLRs offers a promising avenue for enhancing breast cancer treatment efficacy.
Keywords:
Toll-like receptorsbreast cancercancer immunityimmune checkpoint inhibitorimmunotherapyinnate immunity

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