Redirecting immune signaling with cytokine adaptors

Area of Science:

• Immunology
• Molecular Biology
• Biotechnology

Background:

• Cytokines are crucial immune signaling molecules, often dysregulated in disease.
• Current cytokine blockade therapies are common, but cytokine agonism is limited by pleiotropic receptor effects.
• Existing immune conversion methods often require complex cell engineering.

Purpose of the Study:

• To develop a novel approach for conditional cytokine agonism.
• To engineer molecular switches (cytokine adaptors) that convert existing cytokine signals into alternative, desired signals.
• To overcome limitations of current cytokine-targeting therapies.

Main Methods:

• Engineered soluble molecules called cytokine adaptors.
• Utilized endogenous cytokines to activate adaptors, forming a complex that acts as a surrogate agonist.
• Demonstrated conversion of immunosuppressive cytokines (IL-10, TGF-β) into immunostimulatory signals (IL-2 receptor agonists).
• Showcased conversion of pro-inflammatory cytokines (IL-23, IL-17) into immunosuppressive signals (IL-10 receptor agonists).

Main Results:

• Successfully developed functional cytokine adaptors that transform cytokine signals.
• Demonstrated context-dependent agonism, leveraging endogenous cues for specific signaling.
• Achieved conversion of immunosuppressive to immunostimulatory and vice versa cytokine activities.
• Cytokine adaptors function as soluble molecules, avoiding the need for cell engineering.

Conclusions:

• Cytokine adaptors represent a versatile platform for conditional immune modulation.
• This approach allows for precise control over immune responses by repurposing existing cytokine signals.
• Cytokine adaptors offer a novel therapeutic strategy for diseases involving immune dysregulation.