How does one cell communicate with another? How are thousands of bodily functions regulated? And how does a deadly disease like cancer spread due to faulty signals within cells? — In seeking answers to these questions, several scientists, now honored with the 2025 Canada Gairdner Awards, have made groundbreaking contributions.
This prestigious award is presented annually to recognize the world’s leading researchers in health and medical science. Let’s discover some of this year’s winners’ remarkable research and their contributions.
1. Unraveling the Mystery of Cellular Conversations: Notch Signaling Pathway
Winners:
- Dr. Spyros Artavanis-Tsakonas (Harvard)
- Dr. Iva Greenwald (Columbia University)
- Dr. Gary Struhl (Columbia University)
Together, the three of them revealed a special intercellular communication system called the Notch signaling pathway, which plays a crucial role in animal development and organ formation. The crux of their research lies in uncovering how a cell interprets signals from its neighbors to make decisions. Malfunctions in this pathway can lead to complex diseases, including cancer.
Dr. Artavanis-Tsakonas was the first to clone the Notch gene from the fruit fly Drosophila, demonstrating that it codes for a receptor linked to the cell membrane. Dr. Greenwald showed how a protein (Presenilin) cleaves this receptor to transmit signals. Dr. Struhl proved that the cytoplasmic portion of this receptor enters the nucleus to regulate genes.
Their research has opened new horizons in our understanding of cellular dialogues.
2. A Revolution in the Treatment of Cystic Fibrosis
Winners:
- Dr. Michael J. Welsh (University of Iowa)
- Dr. Paul Negulescu (Vertex Pharmaceuticals)
These two scientists took on a disease that was once considered a death sentence— Cystic Fibrosis. After the discovery in 1989 of a protein called CFTR, Dr. Welsh demonstrated how this protein transports chloride ions and how its malfunction leads to the disease.
Later, Dr. Negulescu developed medications at his company that help this faulty protein reach the cell surface and function correctly. The drug TRIKAFTA is now effective for 90% of cystic fibrosis patients, and their average life expectancy has risen to 61 years.
3. Life-Saving Nutrition for Malnourished Children: RUTF
Winner:
- Dr. André Briend (France & Finland)
In the fight against child malnutrition in poor countries like Bangladesh, Dr. Briend is a leading hero. He developed Ready-to-Use Therapeutic Food (RUTF)— a nutrient-rich food that allows severely malnourished children to recover at home without needing to go to the hospital. It’s designed to inhibit bacterial growth and is easy to transport.
Inspired by chocolate spreads, this food has today become a globally recognized solution by WHO and UNICEF.
4. Digital Therapy for Managing Chronic Pain in Children
Winner:
- Dr. Jennifer Stinson (Canada)
To ease the suffering of children and adolescents living with chronic pain from conditions like arthritis, cancer, or sickle cell disease, she developed the iCanCope app. It features pain reporting, personal goal setting, and virtual support. Her team also created a platform called iPeer2Peer where experienced teens support newcomers.
These innovations have changed the lives of many children.
5. Forcing Cancer Cells to Self-Destruct
Winner:
- Dr. Daniel de Carvalho (University Health Network, Canada)
Dr. de Carvalho has discovered a novel way to induce self-destruction in cancer cells. He developed a treatment method that activates dormant virus-like genes within cancer cells, causing the body’s immune system to attack and destroy those cells. This discovery opens new horizons in cancer treatment.
🔍 Conclusion
Dear students, these scientists have shown us that research doesn’t have to stay confined to the laboratory—it can truly save lives. May their journey, determination, and passion for research inspire you in your pursuit of science.
This time at university is your best opportunity— to develop yourself, to ask questions, to embark on a path of research. Today’s Gairdner Award winners were once students like you; one day, you too could follow in their footsteps. Start now.
Let your journey begin here—embrace science within yourself.
– The Scientist Org Team
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