Pancreatic cancer is one of the most serious and difficult cancers to treat. It is often found late, when the disease has already spread, and current treatments do not work well for many patients.
Because of this, scientists around the world are searching for new ways to fight this disease. A new study has now found a possible weakness in pancreatic cancer cells that could lead to future treatments.
The research was carried out by scientists at The Wistar Institute and clinical researchers from ChristianaCare’s Helen F. Graham Cancer Center & Research Institute. The findings were published in the scientific journal Proceedings of the National Academy of Sciences.
The study focuses on a part of the cell called mitochondria. These are tiny structures inside cells that help produce energy from food. Every cell in the body needs energy to survive, so mitochondria are very important for normal cell function.
In many cancer cells, however, mitochondria do not work properly. Previous studies showed that pancreatic cancer cells often have damaged mitochondria.
These mitochondria are missing an important structural protein called Mic60. Even though they are damaged, they remain inside the cell. Scientists sometimes call them “ghost mitochondria” because they are not working as they should.
Until now, researchers did not fully understand why these damaged mitochondria were important for cancer growth. The new study helps explain what is happening.
In healthy cells, mitochondria are surrounded by a protective membrane that keeps their contents inside. But in cancer cells that lack Mic60, this membrane becomes weak and starts to leak. When this happens, a substance called double-stranded RNA escapes from the mitochondria into the rest of the cell.
The cell’s defense system sees this RNA as a warning sign, similar to what happens during a viral infection. This triggers a strong immune response inside the cell. Two important proteins, called TLR3 and TRAF6, act like sensors that detect the RNA and activate inflammation.
Inflammation is usually part of the body’s way of fighting infection or injury. But in this case, the cancer cells take advantage of it. Instead of being harmed, they use the inflammatory signals to grow and survive.
One of the most surprising findings of the study is that pancreatic cancer cells become highly dependent on this inflammation. They rely on it not just to grow, but also to stay alive. When researchers blocked the activity of the TLR3 and TRAF6 proteins, the cancer cells could no longer survive and began to die.
Importantly, this effect was specific to cancer cells. Healthy cells were not harmed when this pathway was blocked. In experiments using mice, stopping this process caused pancreatic tumors to stop growing.
This discovery is important because it reveals a new possible target for treatment. If scientists can develop drugs that block the TLR3/TRAF6 pathway, they may be able to stop pancreatic cancer cells from growing or even kill them.
Researchers say this finding was unexpected. While scientists already knew that mitochondria could trigger inflammation under certain conditions, they did not know that this process could drive cancer growth. They also did not know that cancer cells could become so dependent on inflammation.
The next step for researchers is to better understand how the loss of Mic60 causes the mitochondrial membrane to break down and leak. They also want to continue developing drugs that can safely block the TLR3/TRAF6 pathway.
Although more research is needed, this study offers new hope. Pancreatic cancer has very few effective treatment options, and survival rates are still low. Finding a weakness in the cancer itself could lead to new therapies in the future.
By learning more about how cancer cells survive and grow, scientists are moving closer to developing better treatments. This discovery may one day help improve outcomes for patients facing this difficult disease.
If you care about cancer, please read studies that artificial sweeteners are linked to higher cancer risk, and how drinking milk affects risks of heart disease and cancer.
For more health information, please see recent studies about the best time to take vitamins to prevent heart disease, and results showing vitamin D supplements strongly reduces cancer death.
Copyright © 2026 Knowridge Science Report. All rights reserved.
