T cell-based cancer immunotherapy: opportunities and challenges

Area of Science:

• Immunology
• Oncology
• Cancer Research

Background:

• T cells are crucial for the cancer immunity cycle.
• Therapeutic success of T cell interventions depends on multiple factors throughout this cycle.

Purpose of the Study:

• To review advances in T cell immunotherapy.
• To identify barriers to T cell-mediated cancer immunity.
• To discuss factors influencing T cell differentiation and function.

Main Methods:

• Literature review and discussion of T cell immunotherapy.
• Analysis of T cell activation, trafficking, infiltration, and tumor cell killing.
• Exploration of factors influencing T cell differentiation, including TCR stimulation, costimulatory signals, cytokines, metabolic reprogramming, and mechanical forces.

Main Results:

• Key transcription factors and metabolic pathways dictate T cell differentiation and epigenetic programming.
• Barriers exist at multiple stages of the cancer immunity cycle, affecting T cell recognition, trafficking, and effector functions.

Conclusions:

• A deeper understanding of T cell fate determination is essential for developing novel strategies.
• Overcoming identified barriers can enhance the efficacy of T cell-based cancer immunotherapies.