Tag Archives: Cancer Cells

Some Cancers Cloak Themselves from the Immune System’s Discovery

Some Cancers Cloak Themselves from the Immune System's Discovery
Some Cancers Cloak Themselves from the Immune System’s Discovery

Immunotherapy cancer treatment is designed to aid the body’s immune system in recognizing and attacking tumor cells. Scientists are finally uncovering clues as to how cancer cells are able to evade detection by the body’s natural defenses.

How Cancer Blocks the Immune System

The first steps were taken in 2009 by a team headed up by Dr. Irving Weissman, director of Stanford’s Institute for Stem Cell Biology and Regenerative Medicine. Their research discovered that some cancer cells are able to emit a “don’t eat me” signal.

High levels of CD47, a transmembrane protein, are found on the surface of more aggressive cancer cells. CD47 then binds with another protein called SIRPalpha on the surface of macrophages, a type of white blood cell, inhibiting their ability to attack cancer cells.

In 2017, Dr. Weissman’s team published the results of a recent study that identified another protein that interferes with macrophage activity. When MHC class 1 binds with a protein known as LILRB1, it’s resistant to an antibody that has been used successfully to counteract CD47 in tests on mice with cancer.

Applications for Immunotherapy Cancer Treatment

Cancer research is complicated by the fact that different types have different “fingerprints.” The studies conducted by Dr. Weissman’s team are helping scientists learn more about strategies to “outwit” cancer cells and their ability to avoid detection.

Issels®: Pioneering Immunotherapy Cancer Treatment

Our founder, Dr. Josef Issels, was ahead of his time in focusing on the immune system as the key to defeating advanced cancer. Contact us to learn more about how we are continuing his legacy of helping patients achieve long-term remission.

Levitating Cells May Lead to a Cancer Cure Breakthrough

Super Charged Cells
levitating Cells

Our Issels® team is extremely supportive of any process that makes detecting cancer cells easier, which is why we are highly enthusiastic about research published in May’s Proceedings of the National Academy of Sciences about a potential new diagnostic tool that can detect cancer at the cellular level in a fast and simple way.

Researchers at Stanford University have learned how to detect and identify different types of cancer cells by levitating them.

It’s Not Magic

When most people hear the word “levitate,” they think of magicians tricking audiences into believing magic exists by floating objects or people in the air.

Scientists have discovered that they can levitate animals by injecting them with a material that reacts to the presence of magnets. The Stanford researchers wondered if they could do the same with cells to determine if cells had different measurable magnetic field levitation profiles. As cells are too small to inject with materials without damaging them, the researchers decided to test their theory using a buoyant force:

  • They placed a channel of gadolinium-laced fluid between two small magnets and soon found that any cells that were less dense than gadolinium levitated above it.
  • They learned that cancer cells levitated above healthy cells and that cancer, bacteria, blood and yeast cells levitated at different heights.
  • They also discovered that cells that form different types of cancer, such as breast, colorectal, esophageal and non-small cell lung had unique profiles and levitated at different heights.

For more information about this astounding new diagnostic test research, or any of our currently available testing and treatment methods, contact any Issels® center for Immuno-Oncology today!