Pancreatic cancer is one of the most dangerous cancers in the world. It is often called a “silent” disease because it is very hard to find in its early stages.
By the time most people are diagnosed, the cancer has already spread or become very serious. This makes treatment much more difficult and reduces the chances of survival.
One of the most common and aggressive types of pancreatic cancer is called pancreatic ductal adenocarcinoma, or PDAC. This type grows quickly and is very hard to control.
Sadly, only about 8 out of every 100 people diagnosed with PDAC are still alive five years later. Because of this, scientists around the world are working hard to understand this cancer better and find new ways to treat it.
Recently, a group of researchers from the Francis Crick Institute made an important discovery that could help improve future treatments. The study was led by Dr. Axel Behrens and was published in the journal Nature Cell Biology. Their work focused on a special group of cells inside tumors known as cancer stem cells.
To understand why these cells matter, it helps to know how normal stem cells work. In healthy parts of the body, stem cells help repair damaged tissues and create new cells. They are very important for healing and maintaining normal body functions. However, in cancer, similar types of cells behave in a harmful way.
Cancer stem cells can create new cancer cells again and again. They help tumors grow larger and spread to other parts of the body. They are also believed to be one of the main reasons why cancer can return after treatment. Even if most of the tumor is removed or destroyed, these cells can survive and start the cancer again.
The researchers wanted to find out what makes these cancer stem cells so powerful. They studied which genes were active in these cells and looked for unique features on their surface. During this process, they found a protein called CD9.
CD9 was found on the surface of cancer stem cells in both early-stage and late-stage pancreatic tumors. This is important because it suggests that CD9 could be used as a sign to identify harmful cancer cells, even before the disease becomes very advanced.
The team also discovered that CD9 is not just a marker. It actually helps the cancer grow. When the scientists reduced the level of CD9 in mice with pancreatic cancer, the tumors became smaller and grew more slowly.
On the other hand, when they increased the amount of CD9, the tumors became larger and more aggressive. This clearly showed that CD9 plays an active role in making the cancer worse.
To see if this also applied to real people, the researchers studied data from patients with pancreatic cancer. They found that around 10 percent of patients had high levels of CD9 in their tumors. These patients tended to have more severe disease and poorer outcomes, meaning their cancer was harder to treat and more likely to progress quickly.
The researchers then explored why CD9 had such a strong effect. They found that it helps cancer stem cells absorb more of a substance called glutamine.
Glutamine is a nutrient that cells use as a source of energy and building material. Cancer cells need large amounts of it to grow and multiply. By helping cells take in more glutamine, CD9 gives cancer cells the fuel they need to become stronger and spread faster.
This discovery is important because it offers a new possible target for treatment. If scientists can develop drugs that block CD9, they may be able to cut off the cancer’s supply of glutamine. Without enough fuel, the cancer cells may grow more slowly or even stop growing altogether.
Although more research is needed before this idea can be turned into a real treatment, the findings bring new hope. Pancreatic cancer has been very difficult to treat for many years, so any new insight is valuable. Discoveries like this help scientists move closer to better therapies and improved survival rates.
This study shows that even in the face of very tough diseases, research continues to make progress. Each new finding helps build a clearer picture of how cancer works and how it can be stopped. In the future, this knowledge may lead to more effective treatments and better outcomes for patients facing pancreatic cancer.
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