Peptides that immunoactivate the tumor microenvironment

Area of Science:

• Oncology
• Immunology
• Biotechnology

Background:

• Cancer immunotherapy has revolutionized treatment but struggles with
• cold tumors
• characterized by immune cell exclusion and immunosuppression.
• Current strategies focus on modulating the tumor microenvironment (TME).

Purpose of the Study:

• To systematically review immunoactivating peptides for cancer immunotherapy.
• To discuss the potential of peptide therapeutics in overcoming limitations of existing TME-modulating agents.

Main Methods:

• Literature review of immunoactivating peptides.
• Analysis of peptide properties in comparison to small molecules and antibodies.
• Discussion of peptide therapeutic potential in cancer immunology.

Main Results:

• Small molecules and antibodies have limitations in affinity, specificity, tissue penetration, and cost.
• Peptides offer potential advantages in overcoming these limitations for TME modulation.
• Various immunoactivating peptides have been developed.

Conclusions:

• Peptide therapeutics represent a promising strategy for enhancing cancer immunotherapy efficacy, especially for cold tumors.
• Peptides may overcome the drawbacks of current small molecule and antibody-based immunomodulators.
• Further development of peptide therapeutics holds significant potential in cancer immunology.