Nobel Prize Spotlights Immunology’s Central Role in Fighting Cancer, Autoimmune Disease – and Misinformation
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The 2025 Nobel Prize in Physiology or Medicine, awarded last week to Mary E. Brunkow, Fred Ramsdell, and Dr. Shimon Sakaguchi, underscores the critical importance of immunology to modern medicine and public health, a field increasingly challenged by unfounded skepticism. The American Association of Immunologists (AAI) hailed the award as a testament to the field’s progress, stating the prize demonstrates “how immunology is central to medicine and human health.” The ability to understand, manipulate, and regulate immune responses holds immense promise for treating a wide spectrum of illnesses, from autoimmune conditions and cancer to allergies and infectious diseases.
This year’s recognition couldn’t come at a more crucial time, as the scientific community grapples with the spread of misinformation, especially from figures like RFK Jr., who challenge established scientific consensus on vaccines. With the addition of Dr. Sakaguchi, a Distinguished Fellow of AAI, this marks the 28th time an AAI member has been honored with a Nobel Prize since 1901, highlighting the association’s consistent contributions to immunological breakthroughs.
A Century of Finding: Immunology and the Nobel Prize
The field of immunology has evolved in tandem with the Nobel Prize in Physiology or Medicine over the past century,each informing and accelerating the other. The very concept of immunity finds its roots in ancient Rome, where immunitas denoted exemption from taxation for worthy citizens. While a far cry from the complexities of modern immunology, this past precedent speaks to the essential human desire for protection. That protection, as we now understand it, relies heavily on White Blood Cells (WBCs), the stars of our internal defense system. These cells originate in the bone marrow and mature in the fetal thymus, learning to identify and neutralize invaders while sparing healthy tissue.
WBCs aren’t a monolithic force; they are organized into specialized units. Neutrophils act as immediate first responders, engulfing bacteria and fungi. Monocyte macrophages provide an additional frontline defense,literally consuming and digesting bacteria and damaged cells through a process called phagocytosis. B-cells produce antibodies, proteins designed to recognise and remember specific invaders’ chemical signatures, or antigens, allowing for rapid identification and neutralization of threats. T-cells target viruses hidden within human cells themselves.
The foundations of our understanding were laid in the early 20th century. In 1901, German scientist emil von Behring received the first Nobel Prize in Physiology or Medicine for demonstrating passive immunity. He successfully isolated toxins from tetanus and diphtheria, injecting them into animals and proving subsequent protection against infection. These antitoxins, widely used in New York city, swiftly ended the devastating diphtheria epidemic that plagued infants.
Unraveling the Body’s Defense Mechanisms
Further breakthroughs followed. Brussels scientist Jules Bordet, studying Anthrax in the early 1900s, identified not only protein antibodies but also a series of accompanying proteins that amplified their bacterial killing power. This cascade of proteins, dubbed complement proteins, earned Bordet the Nobel Prize in 1919. When activated, these proteins “drill holes” through bacterial cell walls, leading to their destruction.
Victories against pathogens weren’t always swift.The fight against poliovirus, which targeted motor neurons and caused paralysis, particularly in children, required a collaborative
our understanding deepens, harnessing the immune system to combat metastatic cancer, prevent organ rejection, and avoid autoimmune destruction is increasingly within reach.
Ultimately, science is a process, and RFK Jr. is ill-equipped to referee it.
Mike Magee MD is a Medical Historian and regular contributor to THCB. He is the author of CODE BLUE: inside America’s Medical Industrial Complex. (Grove/2020)
