Promotes the generation of cancer-specific effector T cell (Teff) in lymph nodes, and induces the activation and proliferation of tumor-infiltrating Teff and NK cells.

Controls the immuno-suppressive function of regulatory T cells (Tregs) in tumor microenvironment (TME)

Restores T cell function and anti-cancer immune responses in TME

Secures its safety in GLP toxicity study

• 01 Maintaining CD80 expression
  In lymph nodes, CD80 of antigen-presenting cells (APCs) binds to CTLA-4 of regulatory T cells (Treg), which in turn, downregulates the expression of CD80. By binding to CTLA-4 on Treg, GI-101 maintains CD80 expression on APC.
• 02 T cell Activation
  APC presents cancer antigens to Naive T cells (Naïve T), which is accompanied by the binding of CD80 on APC and CD28 on Naïve T. This activates Naïve T into cancer-specific T cells that can target and kill cancer cells.
• 03 T cell Proliferation
  The IL-2 variant (Interleukin-2 variant) of GI-101 acts as a signal transmitter which promotes the activation and proliferation of cancer-specific, effector T cell (Teff) by binding to its IL-2 receptors.
• 04 Restoring T cell function
  Teff travels to the tumor microenvironment (TME) and faces a variety of immune suppressive signals. In TME, CD80 of GI-101 binds to CTLA-4 expressed on the surface of Teff and Treg,
  restoring anti-cancer immune responses.
• 05 Tumor Cell Death
  The IL-2 variant of GI-101 binds to the IL-2 receptors of Teff and natural killer cells (NK cell). This activates Teff and NK cell, further promoting tumor cell death in TME.