Cancer Cells May Be Able to Urge Their Own Death

New research suggests that many cancer cells are equipped with a kind of suicide pill: a protein on their surfaces that gives them the ability to send an “eat me” signal to immune cells.

The challenge now, the researchers say, is to figure out how to coax cancer cells into emitting the signal rather than a dangerous “don’t eat me” signal.

A study published online Dec. 22 in Science Translational Medicine reports that the cells send out the enticing “eat me” signal by displaying the protein calreticulin. But another molecule, called CD47, allows most cancer cells to avoid destruction by sending the opposite signal: “Don’t eat me.”

In earlier research, Stanford University School of Medicine scientists found that an antibody that blocks CD47 — turning off the signal — could help fight cancer, but mysteries remained.

The next step is to understand how calreticulin works. “We want to know how it contributes to the disease process and what is happening in the cell that causes the protein to move to the cell surface,” Dr. Ravindra Majeti, an assistant professor of hematology and study co-principal investigator, said in the release.

“Any of these mechanisms offer potential new ways to treat the disease by interfering with those processes,” Majeti said.

SOURCE

2 thoughts on “Cancer Cells May Be Able to Urge Their Own Death

  • Marisa SungPost author

    A headline that would’ve gotten many more reads goes as follows: Headline–Cancer cells send “eat me” signals to immune cells.

    (just a suggestion) Not everyone is a science geek like me. This information is important and you have to get people to read the article!

    Reply
  • Marisa SungPost author

    Sex sells man! This article went from 16 reads to 112 reads right after my new headline. Anything I can do for the advancement of science and medicine!

    Unfortunately, most people have only one thing on the brain and you have to use that one thing to get them to pay attention to other much more important things like cancer.

    Reply

Leave a Reply to Marisa Sung Cancel reply

Your email address will not be published. Required fields are marked *