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4-1BB: still in the midst of darkness

B Kwon1, C H Moon, S Kang

  • 1The Immunomodulation Research Center, University of Ulsan, Korea.

Molecules and Cells
|June 13, 2000
PubMed

Insights

4-1BB, a key molecule in T cell responses, is crucial for immune cell survival and function. Its role in cancer immunotherapy, particularly with monoclonal antibodies, shows promise for tumor eradication.

Area of Science:

  • Immunology
  • Molecular Biology
  • Cell Biology

Background:

  • 4-1BB is a tumor necrosis factor receptor superfamily member.
  • It acts as a costimulatory molecule in T lymphocytes, influencing antigen presentation and cytotoxic T cell generation.

Purpose of the Study:

  • To explore the diverse roles of 4-1BB beyond its known costimulatory functions.
  • To highlight the clinical significance of 4-1BB in cancer immunotherapy.

Main Methods:

  • Analysis of existing research on 4-1BB signaling.
  • Review of studies involving 4-1BB deficient mice and anti-4-1BB monoclonal antibodies.

Main Results:

  • 4-1BB signaling is vital for CD8+ T cell survival and the induction of helper T cell anergy.
  • Anti-4-1BB monoclonal antibodies demonstrate high efficiency in eradicating established tumors in mice.

Conclusions:

  • 4-1BB has multifaceted roles in T cell biology, impacting survival and anergy.
  • Targeting 4-1BB represents a promising strategy for cancer immunotherapy.

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