Nobel Prize Honors Pioneering Body's Defenses Research
The Nobel Prize in medical science has been granted for revolutionary discoveries that clarify how the immune system attacks harmful infections while sparing the healthy tissues.
A trio of esteemed researchers—from Japan Prof. Sakaguchi and US scientists Mary Brunkow and Fred Ramsdell—received this honor.
Their research uncovered unique "sentinels" within the defense system that remove malfunctioning immune cells that could attacking the body.
The discoveries are now enabling innovative treatments for immune disorders and malignancies.
These laureates will divide a monetary award valued at 11 million SEK.
Crucial Findings
"The work has been decisive for comprehending how the immune system operates and why we don't all suffer from severe autoimmune diseases," commented the chair of the award panel.
This trio's research explain a core mystery: In what way does the immune system protect us from countless invaders while keeping our healthy cells unharmed?
Our body's protection system uses immune cells that search for indicators of infection, including pathogens and germs it has never encountered.
These cells employ detectors—known as recognition units—that are generated randomly in countless combinations.
This gives the defense network the ability to fight a wide array of threats, but the unpredictability of the process unavoidably creates white blood cells that can attack the body.
Protectors of the Body
Scientists earlier knew that a portion of these harmful defense cells were eliminated in the immune organ—where white blood cells develop.
This year's Nobel Prize honors the identification of T-reg cells—known as the body's "peacekeepers"—which travel through the system to disarm any immune cells that assault the body's own tissues.
It is known that this mechanism fails in autoimmune diseases such as juvenile diabetes, multiple sclerosis, and RA.
The Nobel panel added, "The findings have laid the foundation for a new field of research and spurred the development of innovative treatments, for example for cancer and immune disorders."
Regarding cancer, T-regs prevent the system from fighting the growth, so research are aimed at lowering their quantity.
For autoimmune diseases, trials are exploring increasing regulatory T-cells so the body is not being harmed. A comparable method could also be useful in minimizing the chances of organ transplant failure.
Innovative Studies
Prof Shimon Sakaguchi, from Osaka University, conducted tests on rodents that had their immune gland removed, causing autoimmune disease.
He demonstrated that introducing immune cells from other mice could stop the disease—suggesting there was a system for blocking immune cells from harming the host.
Dr. Brunkow, affiliated with the Institute for Systems Biology in Seattle, and Fred Ramsdell, currently at a biotech firm in San Francisco, were investigating an genetic immune disorder in rodents and humans that resulted in the discovery of a genetic factor critical for how regulatory T-cells function.
"Their pioneering work has uncovered how the body's defenses is kept in check by T-reg cells, preventing it from mistakenly targeting the healthy cells," said a prominent physiology specialist.
"This work is a remarkable example of how fundamental biological research can have far-reaching consequences for public health."
