07/13/2024
The Epoch Times
Researchers Find a Precise Way to Kill Cancer Cells
QUOTE: Cancer treatments that aim to destroy deadly cells often cause damage and pain as they wreak havoc on neighboring cells and tissues. However, scientists have discovered a new method of targeting harmful cells using light for precise destruction, according to a recent study.
“Usually treatments for cancer use pharmacological induction to kill the cells, but those chemicals tend to diffuse throughout the tissues and it’s hard to contain to a precise location,” said University of Illinois–Urbana-Champaign biochemistry professor and study leader Kai Zhang in a press release. “You get a lot of unwanted effects.”
The researchers deploy optogenetics, an approach that uses optical systems to control cell functions, to focus a light beam on a target smaller than one cell.
“That is how we can use light to very precisely target a cell and turn on its death pathway,” Mr. Zhang said in the press release.
In addition to killing the cancer cell, another intended outcome is to trigger the immune system to respond to the light. Mr. Zhang said that the ruptured cells release cytokines, a type of small protein, attracting white blood cells that help the immune system fight infection. By killing cancer cells, the researchers hope to train T-cell white blood cells to recognize and attack the cancer, Mr. Zhang said.
