The immuno-oncological implications of insulin

Area of Science:

• Immunology
• Endocrinology
• Cancer Biology

Background:

• Insulin regulates immune cell phenotypes via the PI3K/Akt/mTOR pathway.
• This pathway interacts with other immune signaling cascades like JAK/STAT.
• Immune checkpoint blockers (ICBs) negatively regulate these signaling components.

Purpose of the Study:

• To review emerging evidence on insulin's role in immune cell regulation.
• To explore the potential impact of insulin on immune checkpoint inhibitor (ICI) therapy.
• To highlight the need for further research into insulin's immunomodulatory effects.

Main Methods:

• Literature review of recent findings on insulin signaling in immunity.
• Analysis of the crosstalk between insulin, PI3K/Akt/mTOR, JAK/STAT, and immune checkpoints.
• Discussion of insulin's potential pro-inflammatory effects.

Main Results:

• Insulin signaling influences immune cell phenotypes, potentially promoting pro-inflammatory responses.
• Insulin's effects on immune cells may impact the efficacy of ICB therapies.
• The PI3K/Akt/mTOR pathway, modulated by insulin, is a key regulator of immune responses.

Conclusions:

• Insulin's role in immune cell regulation warrants further investigation, especially concerning ICB therapy.
• Understanding insulin's impact on immune responses is crucial for optimizing cancer immunotherapy.
• Targeting or considering insulin signaling could be relevant for future ICB therapeutic strategies.