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Butyrophilins: Dynamic Regulators of Protective T Cell Immunity in Cancer

Rinkee Kumari1, Elaheh Sadat Hosseini1,2, Kristen E Warrington1

  • 1Medical Immunology, Rutgers Cancer Institute of New Jersey, New Brunswick, NJ 08901, USA.

International Journal of Molecular Sciences
|May 27, 2023
PubMed

Insights

Butyrophilin (BTN) and butyrophilin-like (BTNL) molecules are potent immunosuppressors in solid tumors. Understanding their biology, especially BTN3A1, offers new cancer immunotherapy targets that may enhance current treatments.

Area of Science:

  • Immunology
  • Oncology
  • Molecular Biology

Background:

  • Current immunotherapies show limited efficacy against solid epithelial malignancies.
  • Butyrophilin (BTN) and butyrophilin-like (BTNL) molecules are identified as potent immunosuppressors within tumor microenvironments.
  • These molecules dynamically associate on cellular surfaces, modulating their biological functions.

Purpose of the Study:

  • To explore the biology of BTN and BTNL molecules in cancer.
  • To focus on the role of BTN3A1 in T cell activity and immunosuppression.
  • To discuss the potential of BTN/BTNL as novel immunotherapeutic targets in oncology.

Main Methods:

  • Review of current literature on BTN and BTNL biology.
  • Analysis of BTN3A1's role in T cell activation and suppression.
  • Discussion of potential synergistic effects with existing cancer immunotherapies.

Main Results:

  • BTN and BTNL molecules exhibit immunosuppressive functions, particularly in solid tumors.
  • BTN3A1's dynamic interactions influence both alpha-beta T cell suppression and gamma-delta T cell activation.
  • These molecules represent promising targets for cancer immunotherapy development.

Conclusions:

  • Further research into BTN and BTNL biology is crucial for understanding their role in cancer.
  • Targeting BTN/BTNL molecules, especially BTN3A1, could lead to novel immunotherapeutic strategies.
  • BTN/BTNL-based therapies may synergize with current immune modulators to improve cancer treatment outcomes.
Keywords:
butyrophilinsimmune oncologyimmune suppressionimmunotherapyγδ T cells

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