What This Page Explains This page explains: What Is Adenosine? Adenosine is a molecule found naturally in the body. Simple Explanation Why Adenosine Matters in Cancer Cancer uses adenosine to protect itself. Key Idea 👉 Adenosine acts like an “off switch” for the immune system How Cancer Increases Adenosine Cancer cells and their environment produce … Continue reading How Adenosine Helps Cancer Shut Down the Immune System