High Blood Sugar Helps Cancer Cells Hide from Immune System

Topic: Health

Researchers at Sanford Burnham Prebys Medical Discovery Institute found that high blood sugar levels can help cancer cells hide from the immune system. They discovered that this is due to a thick layer of sugar-derived molecules surrounding the cancer cells, making it harder for the immune system to recognize and destroy them.

Cancer cells have a way to evade the immune system by covering themselves with a dense layer of sugar-derived molecules. This coating acts as camouflage, making it difficult for immune cells to detect and destroy the cancer cells. Researchers at Sanford Burnham Prebys Medical Discovery Institute wanted to understand how this protective layer is formed.

They conducted an experiment where they grew cancer cells in different environments, some with plenty of glucose (sugar) and others without. They also simulated high blood sugar levels by exposing the cells to excess glucose. The researchers found that when the cells were grown in a medium that mimicked the human body's nutrient composition, the thickness of this protective layer increased.

The team led by Kevin Tharp discovered that changes in glucose metabolism can affect how the glycocalyx (the protective layer) is assembled. They found that hyperglycemia (high blood sugar levels) altered the glycoconjugates (carbohydrate-protein or lipid structures) of the cells, making it easier for cancer cells to hide from the immune system.

Why It Matters

This research can help scientists develop new ways to treat cancer by targeting the protective layer that helps cancer cells evade the immune system. It also highlights the importance of maintaining healthy blood sugar levels in preventing cancer.

Key Facts

• Researchers at Sanford Burnham Prebys Medical Discovery Institute found that high blood sugar levels can help cancer cells hide from the immune system.
• The protective layer surrounding cancer cells is made up of sugar-derived molecules and is thicker when cells are grown in a medium that mimics the human body's nutrient composition.
• Hyperglycemia (high blood sugar levels) alters the glycoconjugates of cells, making it easier for cancer cells to evade the immune system.
• The study was published on August 7, 2026, in Science Advances journal.
• The researchers identified a potential way to reduce this protective layer, making cancer cells easier to detect and eliminate.

Key Terms

Glycocalyx

A thick layer of sugar-derived molecules surrounding cells that helps them evade the immune system

Hyperglycemia

High blood sugar levels that can help cancer cells hide from the immune system

Implications

This research can help scientists develop new ways to treat cancer by targeting the protective layer that helps cancer cells evade the immune system. It also highlights the importance of maintaining healthy blood sugar levels in preventing cancer.